阅读说明：本技术 一种变频加压供水设备及其工作方法 (Variable-frequency pressurized water supply equipment and working method thereof ) 是由 李纪玺 杨峰 李纪伟 梁斌 陈义东 于 2019-08-22 设计创作，主要内容包括：本发明公开一种变频加压供水设备及其工作方法,包括：市政进水管路；第一出水管的入口与市政进水管路连通,第一出水管的出口处分别连接第一支管和第二支管；第一支管依次连接有第一压力传感器、第一流量计以及第一流量控制阀；第二支管依次连接有蓄水进水电磁阀、蓄水罐以及第二流量控制阀；变频加压供水模块的入口分别连接有第一支管的出口和第二支管的出口,变频加压供水模块的入口连通至居民区水网；出水管上设置有出水阀,第二出水管的一端分别连接有第一支管的出口和第二支管的出口,第二出水管的另一端连通至居民区水网。本发明通过设置位于高处的蓄水罐,避免水压势能的浪费；并且可使得其在高峰用水时得到有效的利用。(The invention discloses a variable-frequency pressurized water supply device and a working method thereof, wherein the variable-frequency pressurized water supply device comprises: a municipal water inlet line; the inlet of the first water outlet pipe is communicated with a municipal water inlet pipeline, and the outlet of the first water outlet pipe is respectively connected with a first branch pipe and a second branch pipe; the first branch pipe is sequentially connected with a first pressure sensor, a first flowmeter and a first flow control valve; the second branch pipe is sequentially connected with a water storage and inlet electromagnetic valve, a water storage tank and a second flow control valve; the inlet of the variable-frequency pressurizing water supply module is connected with the outlet of the first branch pipe and the outlet of the second branch pipe respectively, and the inlet of the variable-frequency pressurizing water supply module is communicated to a residential area water network; and a water outlet valve is arranged on the water outlet pipe, one end of the second water outlet pipe is respectively connected with an outlet of the first branch pipe and an outlet of the second branch pipe, and the other end of the second water outlet pipe is communicated to a residential area water network. The water storage tank positioned at the high position is arranged, so that the waste of water pressure potential energy is avoided; and can make it available for use at peak water usage.)

1. A variable frequency pressurized water supply apparatus, comprising:

a municipal water inlet line;

the inlet of the first water outlet pipe is communicated with the municipal water inlet pipeline, and the outlet of the first water outlet pipe is respectively connected with a first branch pipe and a second branch pipe; the first branch pipe is sequentially connected with a first pressure sensor, a first flowmeter and a first flow control valve; the second branch pipe is sequentially connected with a water storage and inlet electromagnetic valve, a water storage tank and a second flow control valve;

the inlet of the variable-frequency pressurizing water supply module is connected with the outlet of the first branch pipe and the outlet of the second branch pipe respectively, and the inlet of the variable-frequency pressurizing water supply module is communicated to a residential area water network;

and the water outlet pipe is provided with a water outlet valve, one end of the second water outlet pipe is respectively connected with the outlet of the first branch pipe and the outlet of the second branch pipe, and the other end of the second water outlet pipe is communicated to a residential area water network.

2. The variable frequency pressurized water supply apparatus of claim 1 wherein said accumulator tank comprises a first chamber and a second chamber; the first cavity and the second cavity are arranged side by side; a water pump is arranged at the bottom of the first cavity and communicated to the upper part of the second cavity; a breather valve is arranged at the upper part of the second cavity; and liquid level sensors are arranged in the first cavity and the second cavity.

3. The variable frequency pressurized water supply apparatus of claim 1 wherein the reservoir tank is disposed at a maximum height that can be reached by water pressure in the municipal water intake line.

4. The variable-frequency pressurized water supply equipment according to claim 2, characterized in that an ultraviolet sterilizer is arranged inside the water storage tank; and a second pressure sensor is arranged at the outlet of the water storage tank.

5. The variable frequency pressurized water supply apparatus of claim 4, further comprising: the control unit is connected with the first pressure sensor, the first flowmeter, the first flow control valve, the water storage and inlet electromagnetic valve, the ultraviolet sterilizer, the liquid level sensor, the second pressure sensor and the second flow control valve.

6. The variable-frequency pressurized water supply device according to claim 5, wherein a metal-made sealing shell is fixedly installed outside the variable-frequency pressurized water supply module, and the sealing shell is provided with a sound absorption layer.

7. The variable-frequency pressurized water supply equipment according to claim 5, wherein the variable-frequency pressurized water supply module comprises a booster pump and a variable-frequency speed regulating unit; the variable-frequency speed regulating unit controls the operation of the booster pump; the variable frequency speed regulation unit is in communication connection with the control unit.

8. A method of operating a variable frequency pressurized water supply installation comprising a variable frequency pressurized water supply installation according to claims 1 to 7, the method comprising:

firstly, the control unit measures required pressure from the residential area water network, and if the required pressure is in an off-peak pressure range, the control unit executes a second step; if the required pressure is in a peak pressure range, executing a sixth step;

step two, the water pressure of the first branch pipe is measured by the first pressure sensor, and the control unit judges whether the water pressure of the first branch pipe meets the required water pressure of the residential area water network or not; if the water pressure of the first branch pipe is less than the water pressure required by the residential area water network, executing a third step, if the water pressure of the first branch pipe meets the water pressure required by the residential area water network, executing a fourth step, and if the water pressure of the first branch pipe exceeds the water pressure required by the residential area water network, executing a fifth step;

step three, the control unit closes the water storage and inlet electromagnetic valve and the third flow control valve, and simultaneously opens the first flow control valve and the second flow control valve;

step four, the control unit closes the second flow control valve and the third flow control valve, and simultaneously opens the first flow control valve;

step five, the control unit closes the water storage and inlet electromagnetic valve and the third flow control valve, and opens the first flow control valve and the second flow control valve at the same time;

and step six, the control unit closes the water storage and inlet electromagnetic valve and the water outlet valve, and opens the first flow control valve, the second flow control valve and the third flow control valve.

Technical Field

The invention relates to the technical field of water supply, in particular to variable-frequency pressurized water supply equipment and a working method thereof.

Background

The water supply device is widely applied to the secondary pressurization of tap water in the face of more and more high-rise buildings due to the acceleration of the urbanization process in China, the existing non-negative pressure water supply is generally directly connected with a tap water pipe network through a water inlet end of a negative pressure prevention warm flow tank, the negative pressure prevention steady flow tank is in closed operation when the water inlet pressure is reduced to zero, an air suction valve at the top of the tank is opened, a water pump pumps water in the tank to prevent the pressure of the tap water inlet end pipe network from being lower than zero, the isolation effect is basically the same as that of a water pool or a water tank, the pressure relief influence of the tap water pipe network is influenced, only the situation that water pumping is not actively performed is widely achieved, and the secondary pressurization water supply device is mostly installed in a basement of the.

Disclosure of Invention

To the above problems, there is provided a variable frequency pressurized water supply apparatus, which supplies water to floors of lower floors through a first branch pipe, pressurizes the water in a water storage tank directly through the water in the tank when pressurization is required, and is provided with a variable frequency pressurized water supply module for normal water supply at the peak of water consumption.

In order to achieve the purpose, the technical scheme is as follows:

a variable frequency pressurized water supply apparatus, comprising:

a municipal water inlet line;

the inlet of the first water outlet pipe is communicated with the municipal water inlet pipeline, and the outlet of the first water outlet pipe is respectively connected with a first branch pipe and a second branch pipe; the first branch pipe is sequentially connected with a first pressure sensor, a first flowmeter and a first flow control valve; the second branch pipe is sequentially connected with a water storage and inlet electromagnetic valve, a water storage tank and a second flow control valve;

the inlet of the variable-frequency pressurizing water supply module is connected with the outlet of the first branch pipe and the outlet of the second branch pipe respectively, and the inlet of the variable-frequency pressurizing water supply module is communicated to a residential area water network;

and the water outlet pipe is provided with a water outlet valve, one end of the second water outlet pipe is respectively connected with the outlet of the first branch pipe and the outlet of the second branch pipe, and the other end of the second water outlet pipe is communicated to a residential area water network.

The variable-frequency pressurized water supply equipment comprises a water storage tank, a water inlet pipe and a water outlet pipe, wherein the water storage tank comprises a first cavity and a second cavity; the first cavity and the second cavity are arranged side by side; a water pump is arranged at the bottom of the first cavity and communicated to the upper part of the second cavity; a breather valve is arranged at the upper part of the second cavity; and liquid level sensors are arranged in the first cavity and the second cavity.

Above-mentioned frequency conversion pressurization water supply equipment, wherein, the retaining jar set up in the biggest height that municipal administration water intake pipe's water pressure can reach.

The variable-frequency pressurizing water supply equipment is characterized in that an ultraviolet sterilizer is arranged inside the water storage tank; and a second pressure sensor is arranged at the outlet of the water storage tank.

Above-mentioned frequency conversion pressurization water supply equipment, wherein, still include: the control unit is connected with the first pressure sensor, the first flowmeter, the first flow control valve, the water storage and inlet electromagnetic valve, the ultraviolet sterilizer, the liquid level sensor, the second pressure sensor and the second flow control valve.

Above-mentioned frequency conversion pressurization water supply equipment, wherein, the outer fixed mounting of frequency conversion pressurization water supply module has the sealed enclosure of metal processing procedure, sealed enclosure is provided with the sound absorbing layer.

The variable-frequency pressurized water supply equipment comprises a variable-frequency pressurized water supply module, a pressure regulating module and a pressure regulating module, wherein the variable-frequency pressurized water supply module comprises a booster pump and a variable-frequency speed regulating unit; the variable-frequency speed regulating unit controls the operation of the booster pump; the variable frequency speed regulation unit is in communication connection with the control unit.

An operating method of a variable-frequency pressurizing water supply device comprises the variable-frequency pressurizing water supply device, and the operating method comprises the following steps:

firstly, the control unit measures required pressure from the residential area water network, and if the required pressure is in an off-peak pressure range, the control unit executes a second step; if the required pressure is in a peak pressure range, executing a sixth step;

step two, the water pressure of the first branch pipe is measured by the first pressure sensor, and the control unit judges whether the water pressure of the first branch pipe meets the required water pressure of the residential area water network or not; if the water pressure of the first branch pipe is less than the water pressure required by the residential area water network, executing a third step, if the water pressure of the first branch pipe meets the water pressure required by the residential area water network, executing a fourth step, and if the water pressure of the first branch pipe exceeds the water pressure required by the residential area water network, executing a fifth step;

step three, the control unit closes the water storage and inlet electromagnetic valve and the third flow control valve, and simultaneously opens the first flow control valve and the second flow control valve;

step four, the control unit closes the second flow control valve and the third flow control valve, and simultaneously opens the first flow control valve;

step five, the control unit closes the water storage and inlet electromagnetic valve and the third flow control valve, and opens the first flow control valve and the second flow control valve at the same time;

and step six, the control unit closes the water storage and inlet electromagnetic valve and the water outlet valve, and opens the first flow control valve, the second flow control valve and the third flow control valve.

Compared with the prior art, the technology has the positive effects that:

the water storage tank positioned at the high position is arranged, so that the waste of water pressure potential energy is avoided; and can make it available for use at peak water usage.

Drawings

FIG. 1 is a schematic view of a variable frequency pressurized water supply apparatus of the present invention.

FIG. 2 is a schematic view of a reservoir of a variable frequency pressurized water supply apparatus of the present invention.

In the drawings: 1. a municipal water inlet line; 2. a first water outlet pipe; 21. a first branch pipe; 211. a first pressure sensor; 212. a first flow meter; 213. a first flow control valve; 22. a second branch pipe; 221. a water storage and inlet electromagnetic valve; 222. a water storage tank; 2222. a liquid level sensor; 2223. a second pressure sensor; 223. a second flow control valve; 3. a variable-frequency pressurized water supply module; 31. a third flow rate control valve; 30. sealing the housing; 301. a sound absorbing layer; 4. a residential area water network; 5. a second water outlet pipe; 51. and (4) a water outlet valve.

Detailed Description

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

FIG. 1 is a schematic view of a variable frequency pressurized water supply apparatus of the present invention.

FIG. 2 is a schematic view of a reservoir of a variable frequency pressurized water supply apparatus of the present invention.

Referring to fig. 1 to 2, in a preferred embodiment, a variable frequency pressurized water supply apparatus includes:

municipal water inlet line 1.

The inlet of the first water outlet pipe 2 is communicated with the municipal water inlet pipeline 1, and the outlet of the first water outlet pipe 2 is respectively connected with a first branch pipe 21 and a second branch pipe 22; the first branch pipe 21 is connected with a first pressure sensor 211, a first flow meter 212 and a first flow control valve 213 in sequence; the second branch pipe is connected with a water storage and inlet electromagnetic valve 221, a water storage tank 222 and a second flow control valve 223 in sequence.

The inlet of the variable-frequency pressurizing water supply module 3 is connected with the outlet of the first branch pipe 21 and the outlet of the second branch pipe 22 respectively, and the outlet of the variable-frequency pressurizing water supply module 3 is communicated to the residential area water network 4.

And one end of the second water outlet pipe 5 is connected with an outlet of the first branch pipe 21 and an outlet of the second branch pipe 22 respectively, and the other end of the second water outlet pipe 5 is communicated to the residential area water network 4.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.

Further, in a preferred embodiment, the reservoir 222 is disposed at a maximum height that can be reached by the water pressure in the municipal water intake line 1.

Further, in a preferred embodiment, the second pressure sensor 2223 detects the outlet pressure of the reservoir 222; the pressure in the reservoir is adjusted in real time by subtracting the pressure in the first branch 21 from the measured pressure in the residential water network 4.

Further, in a preferred embodiment, please refer to fig. 2: the reservoir 222 comprises a first chamber 01 and a second chamber 02; the first chamber 01 and the second chamber 02 are arranged side by side; the bottom in the first cavity 01 is provided with a water pump 03, and the water pump 03 is communicated to the upper part of the second cavity 02; a breather valve is arranged at the upper part of the second cavity 02; liquid level sensors are arranged in the first cavity 01 and the second cavity 02. Specifically, first chamber 01 and second chamber 02 are connected through the pipeline that water pump 03 belongs to, and when needs are adjusted the pressure that second pressure sensor 2223 detected, accessible water pump 03 adjusts the water level that second chamber 02 belongs to adjust the water pressure that second pressure sensor 222 measured.

Further, in a preferred embodiment, the second outlet pipe 5 is provided with an outlet valve 51 for preventing water from directly flowing out of the second outlet pipe 5 when pressurized.

Further, in a preferred embodiment, the water storage tank 222 is internally provided with an ultraviolet sterilizer (not shown) and a liquid level sensor 2222; a second pressure sensor 2223 is provided at the outlet of the reservoir 222.

Further, in a preferred embodiment, the method further comprises: and a control unit (not shown) connected to the first pressure sensor 211, the first flow meter 212, the first flow control valve 213, the impounded water inlet solenoid valve 221, the ultraviolet sterilizer, the liquid level sensor 2222, the second pressure sensor 2223 and the second flow control valve 223.

Further, in a preferred embodiment, a metal-made sealing housing 30 is fixedly mounted outside the variable-frequency pressurized water supply module 3, and the sealing housing 30 is provided with a sound absorption layer 301.

Further, in a preferred embodiment, the variable-frequency pressurized water supply module 3 comprises a booster pump (not shown in the figure) and a variable-frequency speed regulating unit (not shown in the figure); the variable frequency speed regulating unit controls the operation of the booster pump; the frequency conversion speed regulation unit is in communication connection with the control unit.

Further, in a preferred embodiment, comprising the variable-frequency pressurized water supply apparatus of claims 1 to 6, the operation method comprises:

step one, the control unit firstly measures the required pressure from the residential area water network 4, and if the required pressure is in the off-peak pressure range, the control unit executes the step two; if the desired pressure is in the peak pressure range, step six is performed. The peak pressure range is the pressure application range of the residential area during peak water consumption, and the non-peak pressure range is the pressure application range of the residential area during non-peak water consumption.

Step two, the water pressure of the first branch pipe 21 is measured by the first pressure sensor 211, and the control unit judges whether the water pressure of the first branch pipe 21 meets the required water pressure of the water network of the residential area at that time or not; if the water pressure of the first branch pipe 21 is less than the water pressure required by the residential area water network 4 at that time, step three is executed, if the water pressure of the first branch pipe 21 meets the water pressure required by the residential area water network 4, step four is executed, and if the water pressure of the first branch pipe 21 exceeds the water pressure required by the residential area water network 4, step five is executed.

Step three, the control unit closes the water storage and inlet electromagnetic valve 221 and the third flow control valve 31, and simultaneously opens the first flow control valve 213 and the second flow control valve 223; the water flow flows through the first branch pipe 21 and the second water outlet pipe 5 from the municipal water inlet pipe 1 to the residential area water network 4, and simultaneously flows out from the water storage tank 222. the water storage tank 222 is arranged at a high position, so that a certain water pressure is provided, the water pressure of the first branch pipe 21 can be compensated, and then the water flow flows into the second water pipe 5 and finally the residential area water network 4 together.

Step four, the control unit closes the second flow control valve 223 and the third flow control valve 31, and simultaneously opens the first flow control valve 213; the water flows from the municipal water inlet pipe 1 through the first branch pipe 21 and the second water outlet pipe 5 to the residential area water network 4. The water pressure of the municipal water inlet pipe 1 directly meets the pressure required by the residential area water network 4.

Step five, the control unit closes the water storage and inlet electromagnetic valve 223 and the third flow control valve 31, and simultaneously opens the first flow control valve 211 and the second flow control valve 221; so that a part of the water flow of the municipal water inlet pipe 1 enters the water storage tank 222 and is stored in the water storage tank 222 for pressurization when the water pressure of the first branch pipe 21 is insufficient; another part of the water flow of the municipal water inlet pipe 1 enters the residential water network 4 directly via the first branch pipe 21 and the second water outlet pipe 5.

Step six, the control unit closes the water storage and inlet electromagnetic valve 221 and the water outlet valve 51, and opens the first flow control valve 213, the second flow control valve 223 and the third flow control valve 31; water flows into and out of the municipal water inlet pipe 1 and enters the variable-frequency pressurizing water supply module 3 through the first branch pipe 21, and simultaneously, water flows into the variable-frequency pressurizing water supply module 3 through the water storage tank 222 and then enters the residential area water network 4 through the variable-frequency pressurizing water supply module 3.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.