阅读说明：本技术 一种智能调节的管道压力控制阀 (Intelligent regulation's pipeline pressure control valve ) 是由 霍达文 陈炯亮 区家显 关永炘 于 2021-02-06 设计创作，主要内容包括：本发明公开了一种智能调节的管道压力控制阀,压力控制阀本体,进水管,所述进水管一端与所述压力控制阀本体的进水端连通,另一端与所述压力控制阀本体的上腔连通,出水管,所述出水管一端与所述压力控制阀本体的上腔连通,另一端与所述压力控制阀本体的出水端连通；第一电磁阀,安装于所述出水管上,适于控制所述压力控制阀本体的上腔与所述压力控制阀本体的出水端的连通与断开,该一种智能调节的管道压力控制阀能够根据实时情况调整水流量的大小,无需人工根据实际供水需求来调节,同时能够避免回流现象的出现。(The invention discloses an intelligently-adjusted pipeline pressure control valve, which comprises a pressure control valve body and a water inlet pipe, wherein one end of the water inlet pipe is communicated with the water inlet end of the pressure control valve body, the other end of the water inlet pipe is communicated with an upper cavity of the pressure control valve body, and one end of the water outlet pipe is communicated with the upper cavity of the pressure control valve body while the other end of the water outlet pipe is communicated with the water outlet end of the pressure control valve body; the intelligent-adjustment pipeline pressure control valve can adjust the water flow according to the real-time condition, does not need manual work to adjust according to actual water supply requirements, and can avoid the backflow phenomenon.)

1. An intelligent regulated line pressure control valve, comprising:

a pressure control valve body;

one end of the water inlet pipe is communicated with the water inlet end of the pressure control valve body, and the other end of the water inlet pipe is communicated with the upper cavity of the pressure control valve body;

one end of the water outlet pipe is communicated with the upper cavity of the pressure control valve body, and the other end of the water outlet pipe is communicated with the water outlet end of the pressure control valve body;

the first electromagnetic valve is arranged on the water outlet pipe and is suitable for controlling the connection and disconnection between the upper cavity of the pressure control valve body and the water outlet end of the pressure control valve body;

the check valve is arranged at the water outlet end of the pressure control valve body;

the water outlet end of the water outlet electromagnetic valve is connected with an external pipeline;

the pressure difference sensor is provided with a first detection end and a second detection end, the first detection end is arranged at the water inlet end of the check valve, and the second detection end is arranged at the water outlet end of the check valve;

the upper cavity pressure relief device is arranged on the water outlet pipe and comprises a peak pilot valve, a low peak pilot valve and a second electromagnetic valve, wherein a peak pilot valve water inlet and a peak pilot valve water outlet are formed in the peak pilot valve, the peak pilot valve water inlet is communicated with the upper cavity of the pressure control valve body, the peak pilot valve water outlet is communicated with the water outlet end of the pressure control valve body, the water inlet end of the low peak pilot valve is communicated with the upper cavity of the pressure control valve body, the water outlet end of the low peak pilot valve is communicated with the water outlet end of the pressure control valve body, the second electromagnetic valve is arranged at the peak pilot valve water outlet, and the opening degree of the peak pilot valve is larger than that of the low peak pilot valve;

the flowmeter is arranged at the water inlet end or the water outlet end of the pressure control valve body;

and the controller is electrically connected with the flowmeter, the differential pressure sensor, the first electromagnetic valve, the second electromagnetic valve and the drainage electromagnetic valve.

2. A smart regulated line pressure control valve as claimed in claim 1, wherein: the water outlet end of the pressure control valve body is communicated with the water outlet end of the pressure control valve body, and the other water outlet end of the water outlet end is connected with the external environment or an external water pumping device.

3. A smart regulated line pressure control valve as claimed in claim 1, wherein: the upper cavity pressure relief device further comprises a low-peak pilot valve and a second electromagnetic valve, wherein the water inlet end of the low-peak pilot valve is communicated with the upper cavity of the pressure control valve body, the water outlet end of the low-peak pilot valve is communicated with the water outlet end of the pressure control valve body, the second electromagnetic valve is installed at the water outlet of the high-peak pilot valve, the second electromagnetic valve is in communication connection with the controller, and the opening degree of the high-peak pilot valve is larger than that of the low-peak pilot valve.

4. A smart regulated line pressure control valve as claimed in claim 3, wherein: the peak pilot valve is internally provided with a first communication cavity, a first installation cavity, a first valve core, a first elastic membrane and a first elastic piece, the first installation cavity is positioned above the first communication cavity, the peak pilot valve water inlet and the peak pilot valve water outlet are communicated with the first communication cavity, the first elastic membrane is arranged in the first installation cavity and divides the first installation cavity into a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is arranged below the second accommodating cavity, the first accommodating cavity is communicated with the first communication cavity, the first elastic piece is arranged in the second accommodating cavity, one end of the first elastic piece is abutted against the first elastic membrane, the other end of the first elastic piece is abutted against the wall of the second accommodating cavity, the first valve core is arranged in the first communication cavity and positioned at the joint of the peak pilot valve water outlet and the first communication cavity, and a first valve rod is arranged on the first valve core, and one end of the first valve rod, which is far away from the first valve core, penetrates out of the first communication cavity and is fixedly connected with the first elastic membrane.

5. The intelligently regulated line pressure control valve of claim 4, wherein: the peak pilot valve is provided with a first ejector rod, one end of the first ejector rod extends into the second containing cavity and is in threaded connection with the peak pilot valve, one end of the first ejector rod, which is arranged in the second containing cavity, is provided with a first top plate, one end of the first elastic piece is abutted against the first top plate, and the other end of the first elastic piece is abutted against the first elastic membrane.

6. The intelligently regulated line pressure control valve of claim 4, wherein: a second communicating cavity, a second installation cavity, a second valve core, a second elastic membrane and a second elastic piece are arranged in the low-peak pilot valve, the second installation cavity is positioned above the second communicating cavity, the high-peak pilot valve water inlet and the high-peak pilot valve water outlet are communicated with the second communicating cavity, the second elastic membrane is arranged in the second installation cavity and divides the second installation cavity into a third accommodating cavity and a fourth accommodating cavity, the third accommodating cavity is arranged below the fourth accommodating cavity, the third accommodating cavity is communicated with the second communicating cavity, the second elastic piece is arranged in the fourth accommodating cavity, one end of the second elastic piece is abutted against the second elastic membrane, the other end of the second elastic piece is abutted against the wall of the fourth accommodating cavity, the second valve core is arranged in the second communicating cavity and is positioned at the joint of the low-peak pilot valve water outlet and the second communicating cavity, and a second valve rod is arranged on the second valve core, one end of the second valve rod, which is far away from the second valve core, penetrates through the second communicating cavity and is fixedly connected with the second elastic membrane, and the elastic force of the first elastic piece is greater than that of the second elastic piece.

7. A smart regulated line pressure control valve as claimed in claim 6, wherein: and a second ejector rod is arranged on the low-peak pilot valve, one end of the second ejector rod extends into the fourth containing cavity and is in threaded connection with the low-peak pilot valve, a second top plate is arranged at one end of the second ejector rod, which is arranged in the fourth containing cavity, one end of the second elastic piece is abutted against the second top plate, and the other end of the second elastic piece is abutted against the second elastic membrane.

8. A smart regulated line pressure control valve as claimed in claim 1, wherein: still include import pressure sensor and export pressure sensor, the controller includes communication module and analog input AI module, import pressure sensor install in the end of intaking of pressure control valve body, export pressure sensor install in the play water end of pressure control valve body, import pressure sensor reaches import pressure sensor with analog input AI module communication connection.

9. A smart regulated line pressure control valve as claimed in claim 8, wherein: the automatic switching device further comprises a dual-power automatic switching module in communication connection with the controller, and the dual-power automatic switching module is respectively connected with an external main power source and an external standby power source.

10. A smart regulated line pressure control valve as claimed in claim 9, wherein: the controller also includes a relay output DO module electrically connected to the second solenoid.

Technical Field

The invention relates to the technical field of pressure control valves, in particular to an intelligent adjusting pipeline pressure control valve.

Background

A pressure reducing valve, also called a pressure control valve, is a valve that reduces an inlet pressure to a desired outlet pressure by regulation and automatically stabilizes the outlet pressure by the energy of a medium itself. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction. Then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

In the use, pressure control valve pressure's settlement adopts pilot valve control pressure control valve outlet pressure usually, carry out pressure control by artificial rotation pilot valve pressure adjusting bolt, adjust water pressure then can bring the difficulty because the special mounted position of relief pressure valve according to actual water supply demand through the manual work, the hydraulic change condition of also unable real-time concern simultaneously, often great anomaly has appeared in the pipeline when the discovery problem, and water supply volume increases suddenly in the water supply district that breaks or before the relief pressure valve appears if being located the water pipe before the relief pressure valve, will lead to the pressure sharply to descend before the relief pressure valve, water pressure behind the relief pressure valve will be greater than the water pressure before the relief pressure valve, the backward flow phenomenon will appear this moment.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an intelligent-adjustment pipeline pressure control valve which can adjust the water flow according to the real-time condition, does not need manual adjustment according to the actual water supply requirement, and can avoid the backflow phenomenon.

The purpose of the invention is realized by adopting the following technical scheme:

a smart regulated line pressure control valve comprising:

a pressure control valve body;

one end of the water inlet pipe is communicated with the water inlet end of the pressure control valve body, and the other end of the water inlet pipe is communicated with the upper cavity of the pressure control valve body;

one end of the water outlet pipe is communicated with the upper cavity of the pressure control valve body, and the other end of the water outlet pipe is communicated with the water outlet end of the pressure control valve body;

the first electromagnetic valve is arranged on the water outlet pipe and is suitable for controlling the connection and disconnection between the upper cavity of the pressure control valve body and the water outlet end of the pressure control valve body;

the check valve is arranged at the water outlet end of the pressure control valve body;

the water outlet end of the water outlet electromagnetic valve is connected with an external pipeline;

the pressure difference sensor is provided with a first detection end and a second detection end, the first detection end is arranged at the water inlet end of the check valve, and the second detection end is arranged at the water outlet end of the check valve;

the upper cavity pressure relief device is arranged on the water outlet pipe and comprises a peak pilot valve, a low peak pilot valve and a second electromagnetic valve, wherein a peak pilot valve water inlet and a peak pilot valve water outlet are formed in the peak pilot valve, the peak pilot valve water inlet is communicated with the upper cavity of the pressure control valve body, the peak pilot valve water outlet is communicated with the water outlet end of the pressure control valve body, the water inlet end of the low peak pilot valve is communicated with the upper cavity of the pressure control valve body, the water outlet end of the low peak pilot valve is communicated with the water outlet end of the pressure control valve body, the second electromagnetic valve is arranged at the peak pilot valve water outlet, and the opening degree of the peak pilot valve is larger than that of the low peak pilot valve;

the flowmeter is arranged at the water inlet end or the water outlet end of the pressure control valve body;

and the controller is electrically connected with the flowmeter, the differential pressure sensor, the first electromagnetic valve, the second electromagnetic valve and the drainage electromagnetic valve.

Further, this application still includes two-position three way solenoid valve, two-position three way solenoid valve has one and intakes end and two water ends, intake the end be provided with the first connecting pipe of the cavity of resorption intercommunication of pressure control valve body, one of them water end with the play water end intercommunication of pressure control valve body, another it is connected with external environment or external pumping device to go out the water end.

Furthermore, the upper cavity pressure relief device also comprises a low-peak pilot valve and a second electromagnetic valve, wherein the water inlet end of the low-peak pilot valve is communicated with the upper cavity of the pressure control valve body, the water outlet end of the low-peak pilot valve is communicated with the water outlet end of the pressure control valve body, the second electromagnetic valve is arranged at the water outlet of the high-peak pilot valve, the second electromagnetic valve is in communication connection with the controller, and the opening degree of the high-peak pilot valve is greater than that of the low-peak pilot valve.

Furthermore, a first communicating cavity, a first installation cavity, a first valve core, a first elastic membrane and a first elastic piece are arranged in the peak pilot valve, the first installation cavity is positioned above the first communicating cavity, the water inlet of the peak pilot valve and the water outlet of the peak pilot valve are communicated with the first communicating cavity, the first elastic membrane is arranged in the first installation cavity and divides the first installation cavity into a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is arranged below the second accommodating cavity, the first accommodating cavity is communicated with the first communicating cavity, the first elastic piece is arranged in the second accommodating cavity, one end of the first elastic piece is abutted against the first elastic membrane, the other end of the first elastic piece is abutted against the wall of the second accommodating cavity, the first valve core is arranged in the first communicating cavity and is positioned at the joint of the peak pilot valve water outlet and the first communicating cavity, and a first valve rod is arranged on the first valve core, and one end of the first valve rod, which is far away from the first valve core, penetrates out of the first communication cavity and is fixedly connected with the first elastic membrane.

Furthermore, a first ejector rod is arranged on the peak pilot valve, one end of the first ejector rod extends into the second accommodating cavity and is in threaded connection with the peak pilot valve, a first top plate is installed at one end, placed in the second accommodating cavity, of the first ejector rod, one end of the first elastic piece is abutted to the first top plate, and the other end of the first elastic piece is abutted to the first elastic membrane.

Furthermore, a second communicating cavity, a second installation cavity, a second valve core, a second elastic membrane and a second elastic piece are arranged in the low peak pilot valve, the second installation cavity is positioned above the second communicating cavity, the water inlet of the high peak pilot valve and the water outlet of the high peak pilot valve are communicated with the second communicating cavity, the second elastic membrane is arranged in the second installation cavity and divides the second installation cavity into a third accommodating cavity and a fourth accommodating cavity, the third accommodating cavity is arranged below the fourth accommodating cavity, the third accommodating cavity is communicated with the second communicating cavity, the second elastic piece is arranged in the fourth accommodating cavity, one end of the second elastic piece is abutted against the second elastic membrane, the other end of the second elastic piece is abutted against the cavity wall of the fourth accommodating cavity, the second valve core is arranged in the second communicating cavity and is positioned at the joint of the water outlet of the low peak pilot valve and the second communicating cavity, and a second valve rod is arranged on the second valve core, one end of the second valve rod, which is far away from the second valve core, penetrates through the second communicating cavity and is fixedly connected with the second elastic membrane, and the elastic force of the first elastic piece is greater than that of the second elastic piece.

Furthermore, a second ejector rod is arranged on the low-peak pilot valve, one end of the second ejector rod extends into the fourth containing cavity and is in threaded connection with the low-peak pilot valve, a second top plate is installed at one end, placed in the fourth containing cavity, of the second ejector rod, one end of the second elastic piece is abutted against the second top plate, and the other end of the second elastic piece is abutted against the second elastic membrane.

Further, this application still includes import pressure sensor and export pressure sensor, the controller includes communication module and analog input AI module, import pressure sensor install in the end of intaking of pressure control valve body, export pressure sensor install in the play water end of pressure control valve body, import pressure sensor reaches import pressure sensor with analog input AI module communication connection.

Further, this application still includes the dual supply automatic switch-over module with controller communication connection, dual supply automatic switch-over module is connected with external main power source and external stand-by power supply respectively.

Further, the controller also includes a relay output DO module electrically connected to the second solenoid.

Compared with the prior art, the invention has the beneficial effects that:

according to the water-saving pressure control valve, the arranged water discharge electromagnetic valve is matched with the check valve, the check valve can block the water outlet end of the pressure control valve body during backflow so as to prevent water from flowing back into the pressure control valve body from the water outlet end of the pressure control valve body, meanwhile, the water discharge electromagnetic valve can pump out water between the check valve and the pressure control valve body so as to form air blocking between the check valve and the pressure control valve body, and further prevent water from flowing back; the flowmeter that sets up simultaneously cooperates with epicoele pressure relief device to can be adjusting according to the real-time water condition, through the discharge size of pressure control valve, need not the manual work and adjust according to the real-time condition, realized the intellectuality of the discharge size of pressure control valve, effectively avoid the untimely problem of pressure control valve problem discovery.

Drawings

FIG. 1 is a schematic diagram of a smart regulated line pressure control valve of the present invention;

FIG. 2 is a cross-sectional view of a smart regulated line pressure control valve of the present invention in normal operation;

FIG. 3 is a cross-sectional view of a smart regulated line pressure control valve of the present invention illustrating backflow prevention;

FIG. 4 is a cross-sectional view of a two-position, three-way solenoid valve of an intelligent regulated line pressure control valve of the present invention in normal operation;

FIG. 5 is a cross-sectional view of a normally backflow-preventing two-position, three-way solenoid valve of an intelligently regulated line pressure control valve of the present invention;

FIG. 6 is a schematic diagram of a peak pilot valve of an intelligent regulated line pressure control valve of the present invention;

FIG. 7 is a schematic diagram of a low peak pilot valve of an intelligent regulated line pressure control valve of the present invention;

FIG. 8 is a schematic diagram of a smart regulated line pressure control valve controller according to the present invention;

FIG. 9 is a schematic diagram of a voltage conversion module of an intelligent regulated line pressure control valve according to the present invention;

fig. 10 is a schematic structural diagram of a dual power supply automatic switching module of an intelligent regulation pipeline pressure control valve according to the present invention.

The figure is as follows: 1. a pressure control valve body; 101. a valve body; 102. a flow channel; 103. a pressure control valve spool; 104. a control chamber; 1041. an upper chamber; 1042. a lower cavity; 1043. a membrane; 1044. a needle valve; 105. a pressure control valve stem; 2. a water inlet pipe; 3. a water outlet pipe; 4. a first solenoid valve; 5. a second solenoid valve; 6. a check valve; 7. a water discharge electromagnetic valve; 8. a differential pressure sensor; 801. a first detection end; 802. a second detection terminal; 9. a controller; 901. a switching value input DI module; 902. analog quantity input AI module; 903. a communication module; 904. a relay output DO module; 905. a network port; 10. a two-position three-way electromagnetic valve; 11. an upper chamber pressure relief device; 111. a peak pilot valve; 1111. a first communicating chamber; 1112. a first mounting cavity; 11121, a first accommodating cavity; 11122. a second accommodating chamber; 1113. a first valve spool; 1114. a first valve stem; 1115. A first elastic diaphragm; 1116. a first elastic member; 1117. a first ejector rod; 1118. a first top plate; 112. A low peak pilot valve; 1121. a second communicating chamber; 1122. a second mounting cavity; 11221. a third accommodating chamber; 11222. a fourth accommodating chamber; 1123. a second valve core; 1124. a second valve stem; 1125. a second elastic diaphragm; 1126. A second elastic member; 1127. a second ejector rod; 1128. a second top plate; 121. an inlet pressure sensor; 122. An outlet pressure sensor; 123. a flow meter; 124. a water quality monitor.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 1 to 10, the present application discloses an intelligent regulated pipe pressure control valve, which includes a pressure control valve body 1;

one end of the water inlet pipe 2 is communicated with the water inlet end of the pressure control valve body 1, and the other end of the water inlet pipe 2 is communicated with the upper cavity of the pressure control valve body 1;

one end of the water outlet pipe 3 is communicated with the upper cavity of the pressure control valve body 1, and the other end of the water outlet pipe 3 is communicated with the water outlet end of the pressure control valve body 1;

the first electromagnetic valve 4 is arranged on the water outlet pipe 3 and is suitable for controlling the connection and disconnection between the upper cavity of the pressure control valve body 1 and the water outlet end of the pressure control valve body 1;

the check valve 6 is arranged at the water outlet end of the pressure control valve body 1;

the water discharging electromagnetic valve 7 is provided with a water inlet end of the water discharging electromagnetic valve 7 and a water outlet end of the water discharging electromagnetic valve 7, the water inlet end of the water discharging electromagnetic valve 7 is arranged between the check valve 6 and the water outlet end of the pressure control valve body 1, and the water outlet end of the water discharging electromagnetic valve 7 is connected with an external pipeline;

the differential pressure sensor 8 is provided with a first detection end 801 and a second detection end 802, the first detection end 801 is arranged at the water inlet end of the check valve 6 so as to obtain the water pressure at the water inlet end of the check valve 6, the second detection end 802 is arranged at the water outlet end of the check valve 6 so as to obtain the water pressure at the water outlet end of the check valve 6, and the water pressure difference between the water inlet end of the check valve 6 and the water outlet end of the check valve 6 can be measured through the obtained water pressure at the water inlet end of the check valve 6 and the obtained water pressure at the water outlet end of the check valve 6;

the controller 9 is electrically connected to the differential pressure sensor 8, the first solenoid valve 4, and the drain solenoid valve 7.

The pressure control valve body 1 in the application is a traditional pressure control valve, which comprises a valve body 101, a flow channel 102 arranged in the valve body 101, a valve core 103 of the pressure control valve, a control cavity 104 and a water inlet pipe 2, the control cavity 104 is positioned above the flow channel 102, a diaphragm 1043 is arranged in the control cavity 104, the control cavity 104 is divided into an upper cavity 1041 and a lower cavity 1042 by the diaphragm 1043, one end of the water inlet pipe 2 is communicated with the upper cavity 1041, the other end of the water inlet pipe is communicated with a water inlet end of the pressure control valve body 1, a needle valve 1044 used for controlling water flow is arranged on the water inlet pipe 2, so that the water pressure in the upper cavity 1041 can be controlled, and the upper cavity 1041 is deformed, the valve core 103 of the pressure control valve is arranged in the flow channel 102, and a valve rod 105 of the pressure control valve extends out of the direction of the control cavity 104, the valve rod 105 of the pressure control valve penetrates out of the flow channel 102 and is fixedly connected with the valve rod 1043 The valve rod 105 of the pressure control valve in the flow channel 102 is sleeved with a spring, and two ends of the spring are respectively abutted to the valve core 103 of the pressure control valve and the side wall of the flow channel 102, when the pressure control valve is used, the needle valve 1044 controls the water flow entering the upper cavity 1041 to control the water pressure in the upper cavity 1041, and as the water flow is applied to the pressure control valve, the valve core 103 of the pressure control valve is equal to the spring force and the pressure of the water pressure in the upper cavity 1041 on the diaphragm 1043, the water pressure in the upper cavity 1041 is controlled, and the opening degree of the valve core 103 of the pressure.

When the product of the application is used, the pressure control valve body 1 is firstly installed in a pipeline, the differential pressure sensor 8 detects the water pressure of the water inlet end of the check valve 6 and the water outlet end of the check valve 6 to obtain the water pressure difference between the water inlet end of the check valve 6 and the water outlet end of the check valve 6, and transmits the obtained water pressure difference to the controller 9, when the water pressure difference received in the controller 9 is abnormal, namely the water pressure of the water inlet end of the check valve 6 is less than the water pressure of the water outlet end of the check valve 6, at the moment, the check valve 6 is closed under the action of the water flow, the controller 9 controls the first electromagnetic valve 4 communicated with the upper cavity 1041 to be closed, so that the water in the upper cavity 1041 of the pressure control valve body 1 cannot flow to the water outlet end of the pressure control valve body 1 through the first electromagnetic valve 4, at the moment, the water pressure in the upper cavity 1041 of the pressure control, therefore, the valve core of the pressure control valve body 1 seals the water inlet end of the pressure control valve body 1 under the action of the elastic force of the spring installed in the pressure control valve body 1, water does not flow into the pressure control valve body 1 any more, meanwhile, the controller 9 controls the water discharge electromagnetic valve 7 to be started, so that water reserved between the water outlet end of the pressure control valve body 1 and the check valve 6 is discharged, and therefore an air partition is formed between the water outlet end of the pressure control valve body 1 and the check valve 6, and backflow is further avoided.

Preferably, the present application further comprises an upper chamber pressure relief device 11 mounted on the water outlet pipe 3 and a flow meter 123 mounted on the water inlet end or the water outlet end of the pressure control valve body 1, the flow meter 123 is in communication connection with the controller 9, the upper chamber pressure relief device 11 comprises a peak pilot valve 111, a low peak pilot valve 112 and a second electromagnetic valve 5, the peak pilot valve 111 is provided with a peak pilot valve 111 water inlet and a peak pilot valve 111 water outlet, the peak pilot valve 111 water inlet is communicated with the upper chamber 1041 of the pressure control valve body 1, the peak pilot valve 111 water outlet is communicated with the water outlet end of the pressure control valve body 1, the second electromagnetic valve 5 is mounted on the peak pilot valve 111 water outlet, so that a user can control whether water flows through the peak pilot valve 111 through the second electromagnetic valve 5, the water inlet end of the low peak pilot valve 112 is communicated with the upper chamber 1041 of the pressure control valve body 1, the water outlet end of, the second electromagnetic valve 5 is in communication connection with the controller 9, and the opening degree of the high peak pilot valve 111 is larger than that of the low peak pilot valve 112.

The flow meter 123 checks the flow rate of water passing through the pressure control valve body 1 and transmits the flow rate of water to the controller 9.

When the water flow received by the controller 9 is smaller than the preset water flow, that is, when the water usage is in a low peak, the controller 9 controls the first electromagnetic valve 4 to be opened and controls the second electromagnetic valve 5 to be closed, at this time, the water flow flows to the water outlet end of the pressure control valve through the low peak pilot valve 112, and because the opening degree of the low peak pilot valve 112 is smaller than that of the high peak pilot valve 111, the pressure relief speed in the upper chamber 1041 is small, the opening degree of the valve core 103 of the pressure control valve is small, and the flow rate of the water flow through the pressure control valve.

When the water flow received by the controller 9 is greater than the preset water flow, that is, when the water flow is in a peak water consumption state, the controller 9 controls the first electromagnetic valve 4 to be opened and simultaneously controls the second electromagnetic valve 5 to be opened, at this time, the water flow flows to the water outlet end of the pressure control valve through the peak pilot valve 111, and because the opening degree of the peak pilot valve 111 is greater than that of the low peak pilot valve 112, the pressure in the upper chamber 1041 is released at a high speed, and the difference between the pressure applied by the water inlet end of the pressure control valve to the valve core 103 of the pressure control valve and the pressure in the upper chamber 1041 is rapidly increased in the releasing process, so that the opening degree of the valve core 103 of the pressure control valve is rapidly increased, and.

As shown in fig. 8, the present application further includes an inlet pressure sensor 121, an outlet pressure sensor 122 and a water quality monitor 124, wherein the inlet pressure sensor 121 is installed at the water inlet end of the pressure control valve body 1, the outlet pressure sensor 122 is installed at the water outlet end of the pressure control valve body 1, and the water quality monitor 124 can be installed at the water inlet end or the water outlet end of the pressure control valve body 1.

Controller 9 includes switching value input DI module 901, analog input AI module 902, communication module 903, relay output DO module 904 and net gape 905, wherein inlet pressure sensor 121, outlet pressure sensor 122, water quality monitor 124 and flowmeter 123 all with analog input AI module 902 communication connection, first solenoid valve 4 and second solenoid valve 5 and relay output DO module 904 communication connection, net gape 905 is connected with external 4G router and central console.

During operation, the inlet pressure sensor 121 and the outlet pressure sensor 122 monitor the water pressure at the water inlet end and the water outlet end of the pressure control valve body 1, and transmit the water pressure data to the analog input AI module 902, the analog input AI module 902 compares the obtained water pressure at the water inlet end and the obtained water pressure at the water outlet end of the pressure control valve body 1 with a preset value, and when the water pressure at the water inlet end or the water outlet end exceeds or is lower than the preset value, the controller 9 sends an alarm to a user and a central console through the communication module 903 and the net port 905; the flow meter 123 monitors the water flow flowing through the pressure control valve body 1, and transmits the monitored data to the analog input AI module 902, the analog input AI module 902 compares the received water flow information with the preset water flow, when the water flow information exceeds the preset water flow, the controller 9 sends an alarm to the user and the console through the communication module 903 and the net port 905, and at the same time, the controller 9 controls the drainage solenoid valve 7 and the first solenoid valve 4 to operate to close the pressure control valve body 1, and simultaneously extracts the water flow between the pressure control valve body 1 and the check valve 6, the analog input AI module 902 controls the second solenoid valve 5 to open or close through the controller 9 when the water flow information is lower than the peak water flow or higher than the peak water flow, so as to switch the low peak pilot valve 112 and the high peak pilot valve 111 to release the pressure of the upper chamber 1041, so that the flow of water through the pressure control valve can meet the use requirements.

The controller 9 of the present application integrates a time control module, so that the second electromagnetic valve 5 can be automatically controlled to open or close in a timing manner to switch the low peak pilot valve 112 and the high peak pilot valve 111 to release the pressure of the upper chamber 1041.

Specifically, under the control of the time task, the peak pressure is set at a certain time interval, if the flow at a certain moment of the time interval reaches the high flow value in the flow task, the peak pressure is automatically switched to meet the requirement of a user, the pressure is continued to the next regulation time interval of the time task, and the time task list control is automatically switched to.

Under the control of the time task, the peak pressure is at a certain time, if the flow at a certain moment of the time reaches the low flow value in the flow task, the pressure is automatically switched to the low peak pressure, the pipeline pressure is reduced, the pressure lasts to the next adjusting time of the time task, and the time task list control is automatically switched to.

The water quality monitor 124 detects the PH value of water, transmits the PH value information obtained after detection to the analog input AI module 902, compares the PH value information with a preset PH value through the analog input AI module 902, and sends an alarm to the user and the console through the communication module 903 and the gateway 905 when the PH value information exceeds the preset PH value.

The upper limit value is predetermine to the water pressure of the end of intaking of pressure control valve body 1 in this application is 8bar, predetermines the lower limit value and is 3bar, and the upper limit value is predetermine to the water pressure of play water end and is 3bar, predetermines the lower limit value and is 1.5bar, predetermines the lower limit value of PH value and is 6.5, and the upper line value is 8.5.

In addition, the controller 9 in this application further includes a dual power switching module and a power switching detection switch, specifically, as shown in fig. 9 and fig. 10, where the dual power switching module is electrically connected to the main power supply and the standby power supply, respectively, and the dual power switching module is electrically connected to the switching value input DI module 901 through the power switching detection switch.

During operation, the voltage of the main power supply and the standby power supply can be monitored by electrically connecting the switching value input DI module 901, and when the voltage of the main power supply or the standby power supply is too high or too low, an alarm is sent to a user and a central console through the communication module 903 or the network port 905.

In the present application, the lower limit value of the voltage of the main power supply is 10.5V, the upper limit value is 14V, the lower limit value of the backup power supply is 10.5V, and the upper limit value is 14V.

Meanwhile, the dual power supply switching module can be switched to a standby power supply when the main power supply is abnormal, specifically, as shown in fig. 10, when the main power supply and the standby power supply are simultaneously powered, the relay KM1 is attracted, the normally open contact of the relay KM1 is switched to be in a closed state, and the main power supply supplies power to the controller 9 at the moment. And the normally closed contact of KM1 was switched to the open state. The relay KM2 can not be supplied with power by the standby power supply, the normally open contact of the relay KM2 can not be closed, and the standby power supply can not supply power to the controller 9.

When the main power supply can not supply power, the relay KM1 can not be attracted, the relay KM1 is restored to the original state, the normally open contact of KM1 is opened, and the normally closed contact of KM1 is closed. At the moment, the relay KM2 is attracted under the power supply of the standby power supply, so that the normally open contact of the KM2 is closed, and the standby power supply supplies power to the controller 9. And the normally closed contact of KM2 was switched from normally closed to open. When the switching value input DI module 901 of the controller 9 contacts the signal, an alarm signal is issued. The control background can be notified through a communication module or a network interface 905 inside the controller 9.

In the present application, the first solenoid valve 4 and the second solenoid valve 5 are self-holding type pulse solenoid valves.

When the self-holding type pulse electromagnetic valve receives a forward voltage signal, the valve is kept in an open state without being continuously electrified. When the valve receives a reverse voltage signal, the valve is kept in a closed state without being continuously electrified.

According to the mechanical structure principle, the opening and closing of the first electromagnetic valve 4 controls the opening and closing of the main valve, and the opening and closing of the second electromagnetic valve 5 controls the high-low peak setting of the outlet pressure of the main valve.

D01 and D02 control the opening and closing of the first solenoid valve 4. When D01 is engaged for 1 second and then disengaged, the solenoid valve receives a forward voltage for 1 second, the first solenoid valve 4 remains open, and the main valve of the control valve also remains open. When D02 is turned off after 1 second of engagement, and the solenoid valve receives a negative voltage for 1 second, the first solenoid valve 4 switches to remain closed, and the main valve of the control valve also remains closed.

D03 and D04 control the opening and closing of the second solenoid valve 5. When D03 is engaged for 1 second and then disengaged, the solenoid valve receives a forward voltage for 1 second, the second solenoid valve 5 remains open, and the outlet pressure of the main valve remains at peak. When D04 is turned off after 1 second of engagement, and the solenoid valve receives a negative voltage for 1 second, the second solenoid valve 5 switches to and remains closed, and the outlet pressure of the main valve remains low-peak.

The switching of the voltage at the two ends of each electromagnetic valve is mainly realized by a voltage steering module.

Referring to fig. 9, when the controller 9D01 pulls in, the bases of the transistor 1 and the transistor 4 are powered on, so that the transistor 1 and the transistor 4 are turned on. Current can flow from the left end of the solenoid valve to the right end of the solenoid valve, the left side of the solenoid valve is a positive electrode, and the right side of the solenoid valve is a negative electrode.

When the controller 9D02 pulls in, the base electrodes of the transistor 2 and the transistor 3 are powered on, so that the transistor 2 and the transistor 3 are conducted. Current can flow from the right end of the solenoid valve to the left end of the solenoid valve, the right side of the solenoid valve is a positive electrode, and the left side of the solenoid valve is a negative electrode.

Preferably, in the present application, a first communication chamber 1111, a first installation chamber 1112, a first valve core 1113, a first elastic diaphragm 1115 and a first elastic member 1116 are arranged in the peak pilot valve 111, the first installation chamber 1112 is located above the first communication chamber 1111, a water inlet of the peak pilot valve 111 and a water outlet of the peak pilot valve 111 are communicated with the first communication chamber 1111, the first elastic diaphragm 1115 is arranged in the first installation chamber 1112 and divides the first installation chamber 1112 into a first accommodation chamber 11121 and a second accommodation chamber 11122, the first accommodation chamber 11121 is arranged below the second accommodation chamber 11122, the first elastic member 1116 is arranged in the second accommodation chamber 11122, one end of the first elastic member 1116 abuts against the first elastic diaphragm 1115, the other end abuts against the wall of the second accommodation chamber 11122, the first accommodation chamber 11121 is communicated with the first communication chamber 1111, so that water pressure can act on the first elastic diaphragm 1115 to deform the first elastic diaphragm 1115, meanwhile, the first valve core 1113 is arranged in the first communication cavity 1111 and located at the connection position of the water outlet of the peak pilot valve 111 and the first communication cavity 1111, the first valve core 1113 is provided with a first valve rod 1114, one end of the first valve rod 1114, which is far away from the first valve core 1113, penetrates through the first communication cavity 1111 and is fixedly connected with the first elastic diaphragm 1115, so that the first elastic diaphragm 1115 is deformed, the first valve rod 1114 is linked with the first valve core 1113 to move towards or away from the first installation cavity 1112 together, so that the first valve core 1113 can block or open the connection position of the water outlet of the peak pilot valve 111 and the first communication cavity 1111, thereby controlling the water flow passing through the first communication cavity 1111, the movement distance towards or away from the first installation cavity 1112 is the opening degree of the peak pilot valve 111, the size is determined by the elastic force of the first elastic member and the water pressure in the upper cavity 1041 together, and the elastic force is equal to the acting force of the water pressure in the upper cavity 1041 on the, the elastic force of the first elastic member 1116 is determined by the compression amount thereof, and if the water pressure in the upper chamber 1041 is high, the acting force of the water pressure in the upper chamber 1041 on the first elastic diaphragm 1115 is high, and the elastic force of the first elastic diaphragm 1115 should be increased together, so that the compression amount of the first elastic member 1116 is large, the moving distance towards the first mounting chamber 1112 is large, and the opening degree of the peak pilot valve 111 is large; on the contrary, the compression amount of the first elastic member 1116 is small, the distance of movement toward the first mounting chamber 1112 is small, and the opening degree of the peak pilot valve 111 is small.

When the pressure control valve is used, water flow in the upper cavity 1041 is rapidly discharged through the peak pilot valve 111, the larger the opening degree of the peak pilot valve 111 is, the larger the water flow discharge water flow in the upper cavity 1041 is, the smaller the water pressure in the upper cavity 1041 is, the pressure applied to the diaphragm 1043 is reduced, while the pressure applied to the valve core 103 by the water flow at the inlet end of the pressure control valve is unchanged, the elastic force of the spring in the pressure control valve is increased, the compression amount of the spring is increased, the opening degree of the valve core 103 of the pressure control valve is increased, and the water flow passing through the pressure control valve is increased.

In addition, the initial state of the first elastic member 1116 can be adjusted, in this case, a first ejector 1117 is disposed on the peak pilot valve 111, one end of the first ejector 1117 extends into the second accommodating chamber 11122 and is connected with the peak pilot valve 111 by screw, the first ejector 1117 is installed with a first top plate 1118 at the end placed in the second accommodating chamber 11122, one end of the first elastic member 1116 abuts against the first top plate 1118, and the other end abuts against the first elastic membrane 1115.

In use, a user can rotate first ejector pin 1117 to adjust the depth that first ejector pin 1117 extends into second receiving cavity 11122, thereby adjusting the amount of compression of first resilient member 1116 by first top plate 1118.

Specifically, if the first elastic member 1116 needs to have a certain elastic force before operation, the first push rod 1117 is screwed into the second accommodating cavity 11122, so that the first top plate 1118 presses the first elastic member 1116, so that the first elastic member 1116 has a certain elastic force, and the magnitude of the elastic force is determined by the depth of screwing the first push rod 1117 into the second accommodating cavity 11122, i.e., the compression amount of the first top plate 1118 on the first elastic member 1116.

Preferably, the present application is provided with a second communicating chamber 1121, a second mounting chamber 1122, a second valve spool 1123, a second elastic membrane 1125 and a second elastic member 1126 in the low peak pilot valve 112, the second mounting chamber 1122 is located above the second communicating chamber 1121, the high peak pilot valve 111 water inlet and the high peak pilot valve 111 water outlet are communicated with the second communicating chamber 1121, the second elastic membrane 1125 is disposed in the second mounting chamber 1122 and divides the second mounting chamber 1122 into a third accommodating chamber 11221 and a fourth accommodating chamber 11222, the third accommodating chamber 11221 is disposed below the fourth accommodating chamber 11222, the second elastic member 1126 is disposed in the fourth accommodating chamber 11222, and one end of the second elastic member 1126 abuts against the second elastic membrane 1125, the other end abuts against the wall of the fourth accommodating chamber 11222, the third accommodating chamber 21 is communicated with the second communicating chamber 1121, so that the second elastic membrane 1125 can be deformed by the combined action of the water pressure in the upper chamber 1041 and the elastic force of the second elastic member 1126, meanwhile, a second valve rod 1124 is arranged on the second valve core 1123, one end of the second valve rod 1124, which is far away from the second valve core 1123, penetrates through the second communicating cavity 1121 and is fixedly connected with the second elastic membrane 1125, so that the second valve core 1123 is synchronously driven to move together by the second valve rod 1124 when the second elastic membrane 1125 deforms, and the second valve core 1123 is arranged in the second communicating cavity 1121 and is positioned at the connecting position of the water outlet of the low-peak pilot valve 112 and the second communicating cavity 1121, so that when the second valve core 1123 moves, the water flow rate flowing from the second communicating cavity 1121 to the water outlet of the low-peak pilot valve 112 can be controlled; in addition, the elastic force of the first elastic member 1116 is greater than that of the second elastic member 1126, that is, under the action of the water pressure in the upper chamber 1041 on the second elastic diaphragm 1125, the second diaphragm 1043 drives the second valve core 1123 to move toward the second mounting chamber 1122 for a distance greater than the distance that the first diaphragm 1043 drives the first valve core 1113 to move toward the first mounting chamber 1112, that is, the opening degree of the second valve spool 1123 is smaller than the opening degree of the first valve spool 1113, so the water flow rate from the second communication chamber 1121 to the outlet of the low peak pilot valve 112 will be smaller than the water flow rate from the first communication chamber 1111 to the outlet of the high peak pilot valve 111, the discharge speed of the water pressure in the upper chamber 1041 is slow, while the pressure exerted on the valve core 103 of the pressure control valve by the water flow at the inlet end of the pressure control valve is unchanged, the spring force in the pressure control valve is small, the compression amount of the spring is small, the opening change of the valve core 103 of the pressure control valve is small, and the water flow passing through the pressure control valve is small.

When the first solenoid valve 4 and the second solenoid valve 5 are opened, most of the water in the upper chamber 1041 is discharged into the water outlet end of the pressure control valve through the high peak pilot valve 111, and when the water flows into the water outlet end of the pressure control valve, because of the large water flow rate, part of the water flows into the low peak pilot valve 112 through the pipe connecting the low peak pilot valve 112 and the water outlet end of the pressure control valve, at this time, the water flowing into the low peak pilot valve 112 will press the second elastic diaphragm 1125, and at this time, the pressure of the water flowing into the low peak pilot valve 112 on the second elastic diaphragm 1125 will be greater than the pressure of the second elastic member 1126 on the second elastic diaphragm 1125, and the second elastic diaphragm 1125 deforms toward the fourth accommodating chamber 11222, so that the second valve core 1123 moves toward the second installation chamber to close the low peak pilot valve 112.

In addition, in the application, the user can adjust the initial state of the second elastic member 1126, the peak low pilot valve 112 is provided with a second push rod 1127, one end of the second push rod 1127 extends into the fourth accommodating cavity 11222 and is in threaded connection with the peak low pilot valve 112, one end of the second push rod 1127, which is arranged in the fourth accommodating cavity 11222, is provided with a second top plate 1128, one end of the second elastic member 1126 abuts against the second top plate 1128, the other end of the second elastic member 1125 abuts against the second elastic membrane 1125, and the user can rotate the second push rod 1127 to adjust the depth of the second push rod 1127 extending into the fourth accommodating cavity 22 during use, so that the compression amount of the second top plate 1128 on the second elastic member 1126 is adjusted.

As a preferred embodiment, as shown in fig. 4 and fig. 5, the present application further includes a two-position three-way solenoid valve 10, where the two-position three-way solenoid valve 10 has a water inlet end and two water outlet ends, the water inlet end is provided with a first connection pipe communicated with the lower cavity 1042 of the pressure control valve body 1, one of the water outlet ends is communicated with the water outlet end of the pressure control valve body 1, and the other water outlet end is connected with the external environment or an external water pumping device.

When the water pressure difference received by the controller 9 is abnormal, the controller 9 will synchronously control the two-position three-way solenoid valve 10 to operate, and connect the lower cavity 1042 with the external environment or an external pumping device, so as to discharge the water in the lower cavity 1042 to the external environment, so that the upper cavity 1041 can extrude the lower cavity 1042 under the action of the water pressure, and the valve element 103 of the pressure control valve can be closed quickly.

In normal operation, the controller 9 connects the control lower chamber 1042 with the water outlet end of the pressure control valve body 1, so that the water in the lower chamber 1042 can flow into the pressure control valve when being squeezed by the upper chamber 1041.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.