阅读说明：本技术 软化水钠床的运行控制装置、控制方法以及故障判断方法 (Operation control device, control method and fault judgment method for sodium softened water bed ) 是由 *** 范守华 魏甲欣 褚东发 詹旭 薛敏 宋志刚 杨燕华 梁白月 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种软化水钠床的运行控制装置、控制方法以及故障判断方法。其中运行控制装置包括多阀控制器以及软化水钠床,其中：所述软化水钠床连通有进水管道、上排水管道、下排水管道、产水管道、盐水管道以及反洗水管道,所述进水管道上设有进水液动阀,所述上排水管道上设有上排水液动阀,所述下排水管道上设有下排水液动阀,所述产水管道上设有产水液动阀,所述盐水管道上设有盐水液动阀,所述反洗水管道上设有反洗水液动阀；与现有技术相比,本发明的软化水钠床通过采用液动阀控制,并可以同时接入多个动力水源,有力的稳定了软化水钠床运行的稳定性,设备故障率大大降低。(The invention discloses an operation control device, a control method and a fault judgment method for a softened water sodium bed. Wherein the operation control device comprises a multi-valve controller and a softened water sodium bed, wherein: the softened water sodium bed is communicated with a water inlet pipeline, an upper drainage pipeline, a lower drainage pipeline, a water production pipeline, a brine pipeline and a backwashing water pipeline, wherein the water inlet pipeline is provided with a water inlet hydraulic valve, the upper drainage pipeline is provided with an upper drainage hydraulic valve, the lower drainage pipeline is provided with a lower drainage hydraulic valve, the water production pipeline is provided with a water production hydraulic valve, the brine pipeline is provided with a brine hydraulic valve, and the backwashing water pipeline is provided with a backwashing water hydraulic valve; compared with the prior art, the sodium demineralized bed is controlled by the hydraulic valve, and a plurality of power water sources can be connected simultaneously, so that the running stability of the sodium demineralized bed is powerfully stabilized, and the failure rate of equipment is greatly reduced.)

1. An operation control device of a softened water sodium bed is characterized by comprising a multi-valve controller and the softened water sodium bed, wherein:

the softened water sodium bed is communicated with a water inlet pipeline, an upper drainage pipeline, a lower drainage pipeline, a water production pipeline, a brine pipeline and a backwashing water pipeline, wherein the water inlet pipeline is provided with a water inlet hydraulic valve, the upper drainage pipeline is provided with an upper drainage hydraulic valve, the lower drainage pipeline is provided with a lower drainage hydraulic valve, the water production pipeline is provided with a water production hydraulic valve, the brine pipeline is provided with a brine hydraulic valve, and the backwashing water pipeline is provided with a backwashing water hydraulic valve;

the water outlet end of the multi-valve controller is respectively connected with the water inlet hydraulic valve, the upper water discharge hydraulic valve, the lower water discharge hydraulic valve, the water production hydraulic valve, the salt water hydraulic valve and the backwashing water hydraulic valve through hoses so as to control the opening and closing of the water inlet hydraulic valve, the upper water discharge hydraulic valve, the lower water discharge hydraulic valve, the water production hydraulic valve, the salt water hydraulic valve and the backwashing water hydraulic valve;

the backwashing water system is characterized in that a first joint is arranged on the backwashing water pipeline, a second joint is arranged on the water inlet pipeline, the first joint and the second joint are communicated with two interfaces of a first tee joint through hoses, the rest interfaces of the first tee joint are communicated with one interface of a second tee joint through a hose, the other interface of the second tee joint is communicated with the water inlet end of the multi-valve controller through a hose, and the rest interfaces of the second tee joint are communicated with an external water tank through a hose.

2. The apparatus for controlling the operation of a sodium demineralized water bed as claimed in claim 1 wherein said flexible tube is a transparent plastic tube.

3. The apparatus for controlling the operation of a sodium bed in demineralized water according to claim 1, wherein said flexible tube has a diameter of 10 mm.

4. A method for controlling a sodium bed of demineralized water using the operation control device according to any one of claims 1 to 3, characterized by comprising the steps of:

(1) controlling the water inlet hydraulic valve and the water production hydraulic valve to be opened through the multi-valve controller;

(2) controlling water to be softened to enter the softened water sodium bed through the water inlet pipeline and the water inlet hydraulic valve to generate softened water;

(3) the generated softened water enters a soft water tank through the water production hydraulic valve and the water production pipeline;

(4) and controlling the water inlet hydraulic valve and the water production hydraulic valve to be closed through the multi-valve controller.

5. The method of claim 4, comprising a regeneration displacement operation:

(1) the opening of the saline hydraulic valve and the lower drainage hydraulic valve is controlled by the multi-valve controller;

(2) controlling the brine to enter the demineralized sodium bed through the brine conduit, the brine hydraulic valve;

(3) after the brine flows in the sodium softened water bed and is replaced by the internal resin, the brine is discharged into a trench from the sodium softened water bed through the lower drainage valve and the lower drainage pipeline;

(4) and the saline hydraulic valve and the lower drainage hydraulic valve are controlled to be closed through the multi-valve controller.

6. The method for controlling a sodium bed in demineralized water according to claim 4, characterized in that it comprises a backwashing operation:

(1) the multi-valve controller controls the backwashing hydraulic valve and the lower drainage hydraulic valve to be opened;

(2) controlling backwash water to enter the softened water sodium bed through the backwash water pipeline and the backwash water hydraulic valve;

(3) backwashing water flows in the sodium softened water bed in a reverse direction to clean internal resin and then is discharged into a trench from the sodium backwashing water bed through the lower drainage hydraulic valve and the lower drainage pipeline;

(4) and the multi-valve controller controls the backwashing hydraulic valve and the lower drainage hydraulic valve to be closed.

7. The method of claim 4, comprising a forward wash operation:

(1) the multi-valve controller is used for controlling the opening of the water inlet hydraulic valve and the upper drainage hydraulic valve;

(2) controlling tap water to enter the softened water sodium bed through the water inlet pipeline and the water inlet hydraulic valve;

(3) the positive washing water flows in the positive direction of the sodium softened water bed to clean the internal resin and then is discharged into a trench from the sodium softened water bed through the upper drainage valve and the upper drainage pipeline;

(4) and the multi-valve controller is used for controlling the closing of the water inlet hydraulic valve and the lower drainage hydraulic valve.

8. A method for judging a trouble in a sodium bed of demineralized water using the operation control device according to any one of claims 1 to 3, characterized by comprising a method for judging a trouble in a multi-valve controller, wherein:

(1) when the sodium softened water bed is in a working state and no power water exists in a hose connected with a hydraulic valve in a closed state, judging that the multi-valve controller has a fault; when power water exists in a hose connected with the hydraulic valve in the open state and the power water in the hose does not flow, judging that the multi-valve controller has a fault;

(2) when the operation of the sodium softened water bed is switched from one working state to the next working state, when one of the hydraulic valves is closed, if no power water flows to the hydraulic valve in a hose connected with the hydraulic valve, the multi-valve controller is judged to have a fault; and when the corresponding hydraulic valve is opened, if no power water flows to the multi-valve controller in the hose connected with the hydraulic valve, judging that the multi-valve controller has a fault.

9. The method of claim 8, comprising a method of determining a malfunction of a hydraulic valve, wherein:

(1) when the sodium softened water bed is in a working state, when water in a hose connected with a closed hydraulic valve continuously flows to the hydraulic valve, judging that the hydraulic valve has a fault; when water exists in a hose connected with the hydraulic valve in the open state, judging that the hydraulic valve has a fault;

(2) when the operation of the sodium softened water bed is switched from one working state to the next working state, when one of the hydraulic valves is closed, if the power water in the hose connected with the hydraulic valve flows to the hydraulic valve from the multi-valve controller and continuously flows, and the water flow cannot stop, the hydraulic valve is judged to have a fault; when one of the hydraulic valves is opened, if the power water in the hose connected with the hydraulic valve continuously flows to the multi-valve controller from the hydraulic valve and is continuously discharged from the multi-valve controller, the hydraulic valve diaphragm is judged to have a fault.

10. The method of claim 8, comprising a power water pressure failure determination method, wherein: when the softened water sodium bed is in a working state, the sewage discharge pipeline is in a non-drainage state, and if power water exists in the hose corresponding to the upper hydraulic valve of the upper drainage pipeline or the lower drainage pipeline and the power water does not flow, the power water pressure is judged to be low or unstable.

Technical Field

The invention relates to the technical field of softened water equipment, in particular to an operation control device, a control method and a fault judgment method of a softened water sodium bed.

Background

The multi-way valve is adopted for regeneration, backwashing, forward washing and water production control of a plurality of softened water sodium beds, but the multi-way valve is expensive and is an integral structure, and if the multi-way valve fails, the whole multi-way valve needs to be scrapped and replaced, so the replacement cost is high. The softened water sodium bed also adopts a control cabinet to control a plurality of electric valves to control the operation process of the sodium bed, but the electric valves are easy to break down and need a power supply.

Disclosure of Invention

The invention aims to provide an operation control device, a control method and a fault judgment method of a softened water sodium bed, which aim to solve the technical problems in the prior art.

The invention provides an operation control device of a softened water sodium bed, which comprises a multi-valve controller and the softened water sodium bed, wherein:

the softened water sodium bed is communicated with a water inlet pipeline, an upper drainage pipeline, a lower drainage pipeline, a water production pipeline, a brine pipeline and a backwashing water pipeline, wherein the water inlet pipeline is provided with a water inlet hydraulic valve, the upper drainage pipeline is provided with an upper drainage hydraulic valve, the lower drainage pipeline is provided with a lower drainage hydraulic valve, the water production pipeline is provided with a water production hydraulic valve, the brine pipeline is provided with a brine hydraulic valve, and the backwashing water pipeline is provided with a backwashing water hydraulic valve;

the water outlet end of the multi-valve controller is respectively connected with the water inlet hydraulic valve, the upper water discharge hydraulic valve, the lower water discharge hydraulic valve, the water production hydraulic valve, the salt water hydraulic valve and the backwashing water hydraulic valve through hoses so as to control the opening and closing of the water inlet hydraulic valve, the upper water discharge hydraulic valve, the lower water discharge hydraulic valve, the water production hydraulic valve, the salt water hydraulic valve and the backwashing water hydraulic valve;

the backwashing water system is characterized in that a first joint is arranged on the backwashing water pipeline, a second joint is arranged on the water inlet pipeline, the first joint and the second joint are communicated with two interfaces of a first tee joint through hoses, the rest interfaces of the first tee joint are communicated with one interface of a second tee joint through a hose, the other interface of the second tee joint is communicated with the water inlet end of the multi-valve controller through a hose, and the rest interfaces of the second tee joint are communicated with an external water tank through a hose.

The operation control device for the sodium demineralized water bed is characterized in that the hose is preferably a transparent plastic pipe.

The operation control device of the sodium demineralized water bed is characterized in that, the diameter of the hose is preferably 10 mm.

The invention also provides a control method of the softened water sodium bed, which adopts the operation control device of any one of the above items and comprises the following water production operations:

(1) controlling the water inlet hydraulic valve and the water production hydraulic valve to be opened through the multi-valve controller;

(2) controlling water to be softened to enter the softened water sodium bed through the water inlet pipeline and the water inlet hydraulic valve to generate softened water;

(3) the generated softened water enters a soft water tank through the water production hydraulic valve and the water production pipeline;

(4) and controlling the water inlet hydraulic valve and the water production hydraulic valve to be closed through the multi-valve controller.

The method for controlling the sodium bed of demineralized water as described above, wherein, preferably, comprises the following steps:

(1) the opening of the saline hydraulic valve and the lower drainage hydraulic valve is controlled by the multi-valve controller;

(2) controlling the brine to enter the demineralized sodium bed through the brine conduit, the brine hydraulic valve;

(3) after the brine flows in the sodium softened water bed and is replaced by the internal resin, the brine is discharged into a trench from the sodium softened water bed through the lower drainage valve and the lower drainage pipeline;

(4) and the saline hydraulic valve and the lower drainage hydraulic valve are controlled to be closed through the multi-valve controller.

The method for controlling the sodium bed of softened water as described above, wherein, preferably, comprises a backwashing operation:

(1) the multi-valve controller controls the backwashing hydraulic valve and the lower drainage hydraulic valve to be opened;

(2) controlling backwash water to enter the softened water sodium bed through the backwash water pipeline and the backwash water hydraulic valve;

(3) backwashing water flows in the sodium softened water bed in a reverse direction to clean internal resin and then is discharged into a trench from the sodium backwashing water bed through the lower drainage hydraulic valve and the lower drainage pipeline;

(4) and the multi-valve controller controls the backwashing hydraulic valve and the lower drainage hydraulic valve to be closed.

The method for controlling the sodium bed of demineralized water as described above, wherein it is preferable to include the forward washing operation:

(1) the multi-valve controller is used for controlling the opening of the water inlet hydraulic valve and the upper drainage hydraulic valve;

(2) controlling tap water to enter the softened water sodium bed through the water inlet pipeline and the water inlet hydraulic valve;

(3) the positive washing water flows in the positive direction of the sodium softened water bed to clean the internal resin and then is discharged into a trench from the sodium softened water bed through the upper drainage valve and the upper drainage pipeline;

(4) and the multi-valve controller is used for controlling the closing of the water inlet hydraulic valve and the lower drainage hydraulic valve.

The invention also provides a fault judgment method of the softened water sodium bed, which adopts any one of the operation control devices and comprises a fault judgment method of a multi-valve controller, wherein the fault judgment method comprises the following steps:

(1) when the sodium softened water bed is in a working state and no power water exists in a hose connected with a hydraulic valve in a closed state, judging that the multi-valve controller has a fault; when power water exists in a hose connected with the hydraulic valve in the open state and the power water in the hose does not flow, judging that the multi-valve controller has a fault;

(2) when the operation of the sodium softened water bed is switched from one working state to the next working state, when one of the hydraulic valves is closed, if no power water flows to the hydraulic valve in a hose connected with the hydraulic valve, the multi-valve controller is judged to have a fault; and when the corresponding hydraulic valve is opened, if no power water flows to the multi-valve controller in the hose connected with the hydraulic valve, judging that the multi-valve controller has a fault.

The method for determining a fault in a sodium demineralized water bed as described above preferably includes a method for determining a fault in a hydraulic valve, wherein:

(1) when the sodium softened water bed is in a working state, when water in a hose connected with a closed hydraulic valve continuously flows to the hydraulic valve, judging that the hydraulic valve has a fault; when water exists in a hose connected with the hydraulic valve in the open state, judging that the hydraulic valve has a fault;

(2) when the operation of the sodium softened water bed is switched from one working state to the next working state, when one of the hydraulic valves is closed, if the power water in the hose connected with the hydraulic valve flows to the hydraulic valve from the multi-valve controller and continuously flows, and the water flow cannot stop, the hydraulic valve is judged to have a fault; when one of the hydraulic valves is opened, if the power water in the hose connected with the hydraulic valve continuously flows to the multi-valve controller from the hydraulic valve and is continuously discharged from the multi-valve controller, the hydraulic valve diaphragm is judged to have a fault.

The method for determining the fault of the sodium softened water bed preferably comprises a method for determining the hydraulic fault of the power water, wherein: when the softened water sodium bed is in a working state, the sewage discharge pipeline is in a non-drainage state, and if power water exists in the hose corresponding to the upper hydraulic valve of the upper drainage pipeline or the lower drainage pipeline and the power water does not flow, the power water pressure is judged to be low or unstable.

Compared with the prior art, the sodium demineralized bed is controlled by the hydraulic valve, and a plurality of power water sources can be connected simultaneously, so that the running stability of the sodium demineralized bed is powerfully stabilized, and the failure rate of equipment is greatly reduced. And the power water connecting hose of the hydraulic valve adopts a transparent plastic hose, the fault reason of the water softening equipment can be clearly and quickly judged according to the transparent hose, other faults can be judged or convenience is provided for finding the fault reason according to the water flow condition in the transparent hose, convenience is provided for quickly processing various faults and problems, and the fault repairing efficiency is accelerated.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Description of reference numerals: 1-a multi-valve controller, 2-a softened water sodium bed, 3-a water inlet pipeline, 4-an upper water discharge pipeline, 5-a lower water discharge pipeline, 6-a water production pipeline, 7-a brine pipeline, 8-a backwashing water pipeline, 9-a water inlet hydraulic valve, 10-an upper water discharge hydraulic valve, 11-a lower water discharge hydraulic valve, 12-a water production hydraulic valve, 13-a brine hydraulic valve, 14-a backwashing water hydraulic valve, 15-a hose, 16-a first joint, 17-a second joint, 18-a first tee joint, 19-a second tee joint and 20-an external water tank.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As shown in fig. 1, the embodiment of the present invention provides an operation control device for a sodium softened water bed, comprising a multi-valve controller 1 and a sodium softened water bed 2, wherein:

the softened water sodium bed 2 is communicated with a water inlet pipeline 3, an upper water discharging pipeline 4, a lower water discharging pipeline 5, a water production pipeline 5, a brine pipeline 7 and a backwashing water pipeline 8, wherein the water inlet pipeline 3 is provided with a water inlet hydraulic valve 9, the upper water discharging pipeline 4 is provided with an upper water discharging hydraulic valve 10, the lower water discharging pipeline 5 is provided with a lower water discharging hydraulic valve 11, the water production pipeline 5 is provided with a water production hydraulic valve 12, the brine pipeline 7 is provided with a brine hydraulic valve 13, and the backwashing water pipeline 8 is provided with a backwashing water hydraulic valve 14;

the water outlet end of the multi-valve controller 1 is respectively connected with the water inlet hydraulic valve 9, the upper drainage hydraulic valve 10, the lower drainage hydraulic valve 11, the water production hydraulic valve 12, the brine hydraulic valve 13 and the backwash hydraulic valve 14 through a hose 15 so as to control the opening and closing of the water inlet hydraulic valve 9, the upper drainage hydraulic valve 10, the lower drainage hydraulic valve 11, the water production hydraulic valve 12, the brine hydraulic valve 13 and the backwash hydraulic valve 14; the closing principle of the hydraulic valve is as follows: the power water flows out of the multi-valve controller 1 and sequentially enters the top of the hydraulic valve through the hose 15, and the power water presses the diaphragm of the hydraulic valve downwards under the action of pressure to enable the hydraulic valve to be in a closed state;

the backwash water pipeline 8 is provided with a first joint 16, the water inlet pipeline 3 is provided with a second joint 17, the first joint 16 and the second joint 17 are communicated with two ports of a first tee joint 18 through a hose 15, the rest ports of the first tee joint 18 are communicated with one port of a second tee joint 19 through the hose 15, the other port of the second tee joint 19 is communicated with the water inlet end of the multi-valve controller 1 through the hose 15, and the rest ports of the second tee joint 19 are communicated with an external water tank 20 through the hose 15.

Further, the hose 15 is a transparent plastic tube. The faults can be definitely judged according to the transparent hose 15, other faults can be judged according to the water flow condition in the transparent hose 15 or convenience is provided for finding fault reasons, convenience is provided for rapidly processing various faults and problems, and the fault repairing efficiency is accelerated.

Further, the diameter of the hose 15 is 10mm, and the diameter of the hose 15 is very small compared to the diameters of the power water source pipes, i.e., the water inlet pipe 3, the upper water discharge pipe 4, the lower water discharge pipe 5, the water production pipe 5, the brine pipe 7, the backwash water pipe 8 and the external water system pipe, so that the pressures of the water sources, i.e., the water inlet pressure, the backwash water pressure and the external water source pressure, are not affected by the mutual connection.

The invention adopts a multi-valve controller 1 to control a plurality of hydraulic valves to control the operation of a softened water sodium bed 2, the hydraulic valves are arranged on a water inlet pipeline 3, an upper water drainage pipeline 4, a lower water drainage pipeline 5, a water production pipeline 5, a brine pipeline 7 and a backwashing water pipeline 8, and the opening and closing of the hydraulic valves are controlled by the multi-valve controller 1 according to the water flow pressure output by an operation program. Because the softened water sodium bed 2 adopts the hydraulic valves to control the water flow in each pipeline in the regeneration, backwashing and forward washing operations, the pressure of the power water for controlling each hydraulic valve through the multi-valve controller 1 must be higher than or equal to the water flow pressure in each pipeline of the softened water sodium bed 2, and the pressure must be stable.

In this embodiment, the control water flow of the multi-valve controller 1 may come from a pipeline with a relatively high pressure and a relatively stable pressure in a backwashing pipeline or a forward washing pipeline, and the water inlet and the backwashing water of the soft water system may have other purposes, that is, may have other water consumption points or water pump reasons, which cause pressure fluctuation, so that other relatively stable power water may be introduced from the outside of the soft water system, so that the power water pressure is more stable.

The power water hose 15 connecting the multi-valve controller 1 and the hydraulic valves is installed into a transparent plastic pipe, when the sodium bed fails to operate, whether water exists in each hose 15 or not and the flowing direction of the water can be seen from the outside without detaching the hose 15 or detaching the valves or control devices, and therefore whether the water pressure, the hydraulic valves and the like operate normally or not, whether problems exist or not, whether the water pressure problem exists or whether the hydraulic valves or the controllers have the problems, are judged.

1. And (3) fault judgment of the multi-valve controller 1:

(1) when the softened water sodium bed 2 is in water production, regeneration, backwashing and forward washing, whether water exists in each plastic hose 15 or not is checked according to different states, if the hydraulic valve which is supposed to be in a closed state does not have water in the relevant plastic hose 15, the hydraulic valve is actually not closed, and the fault or program problem of the multi-valve controller 1 is shown; if the hydraulic valve which should be in the open state has water in the relevant plastic hose 15 and the water in the hose 15 does not flow, the hydraulic valve is not actually opened, which indicates that the multi-valve controller 1 has a fault or a program problem;

(2) when the operation of the sodium softened water bed 2 is switched from one state to the next state, if a certain hydraulic valve needs to be closed, observing whether the power water in the relevant hose 15 flows to the hydraulic valve from the multi-valve controller 1 in time, if no power water flows to the hydraulic valve, the hydraulic valve cannot be closed, and indicating that the multi-valve controller 1 is in failure; if a certain hydraulic valve needs to be opened, whether power water in the related hose 15 flows to the multi-valve controller 1 from the hydraulic valve in time or not is observed, and the power water is discharged from the drain hose 15 of the multi-valve controller 1, if no power water flows to the multi-valve controller 1 in the related hose 15 of the hydraulic valve, and power water pressure still exists in the hose 15, the hydraulic valve cannot be opened, and the fault of the multi-valve controller 1 is indicated.

2. And (3) hydraulic valve fault judgment:

(1) when the sodium softened water bed 2 is in water production, regeneration, backwashing and forward washing, whether water flows in each plastic hose 15 or not is checked according to different states, if water in the plastic hose 15 of a hydraulic valve which is supposed to be in a closed state continuously flows to the hydraulic valve, a diaphragm of the hydraulic valve is damaged, power water continuously flows into a pipeline where the hydraulic valve is located from the damaged part of the diaphragm of the hydraulic valve, and the upper part of the diaphragm cannot form stable power water pressure to enable the diaphragm to cut off the water flow in the pipeline; if water exists in the plastic hose 15 related to the hydraulic valve which is supposed to be in an open state, and the water in the hose 15 continuously flows to the multi-valve controller 1, the diaphragm of the hydraulic valve is damaged or fails, so that the water flow in the pipeline where the hydraulic valve is located continuously flows to the multi-valve controller 1 from the damaged position of the diaphragm of the hydraulic valve and is continuously discharged from the water discharge hose 15 of the multi-valve controller 1, and the hydraulic valve cannot be normally closed or closed.

(2) When the operation of the sodium softened water bed 2 is switched from one state to the next state, if a certain hydraulic valve needs to be closed, observing that the power water in the related hose 15 flows to the hydraulic valve from the multi-valve controller 1 and continuously flows, and the water flow cannot be stopped, the diaphragm of the hydraulic valve is damaged, the power water continuously flows into the pipeline of the hydraulic valve from the damaged part of the diaphragm of the hydraulic valve, and the upper part of the diaphragm cannot form stable power water pressure to enable the diaphragm to cut off the water flow in the pipeline; if when a certain hydraulic valve needs to be opened, whether power water in the relevant hose 15 flows to the multi-valve controller 1 from the hydraulic valve in time or not is observed, and the power water is discharged from the drainage hose 15 of the multi-valve controller 1, if the water flow in the hose 15 continuously flows to the multi-valve controller 1 from the hydraulic valve at the moment, and the power water is continuously discharged from the drainage hose 15 of the multi-valve controller 1, the diaphragm of the hydraulic valve is damaged or broken, so that the water flow in the pipeline where the hydraulic valve is located continuously flows to the multi-valve controller 1 from the damaged part of the diaphragm of the hydraulic valve, and the hydraulic valve cannot be normally closed or closed.

3. Low or unstable dynamic water pressure:

(1) when the softened water sodium bed 2 is in water production, regeneration, backwashing and forward washing, the drainage condition occurs when the sewage discharge pipeline is in a non-drainage state, no matter the upper drainage pipeline or the lower drainage pipeline, if power water exists in the hose 15 corresponding to the hydraulic valve on the drainage pipeline and the power water does not flow, but the hydraulic valve is not closed tightly at the moment, so that the drainage pipeline drains water, the power water pressure is judged to be low or unstable, so that the power water pressure is lower than the medium water pressure in the drainage pipeline at the moment, and the hydraulic valve cannot be closed or is not closed tightly.

(2) If no power water is supplied to the hoses 15 corresponding to the upper hydraulic valves and the lower hydraulic valves of the brine pipeline 7 and the upper hydraulic valves of the lower drainage pipeline when the sodium demineralized bed 2 enters a salt absorbing state, the hydraulic valves are in an open state, but the float flowmeter does not show that the brine enters the sodium demineralized bed 2, the pressure of the salt pump is normal, and the other hydraulic valves correspond to the hoses 15 and contain power water, the power water pressure is judged to be low or unstable, so that the power water pressure is lower than the medium water pressure in a certain pipeline, generally, the water pressure in the water inlet pipeline 3, namely the normal washing pipeline, is higher than the power water pressure, so that the hydraulic valves cannot be closed or cannot be closed tightly, the water in the water inlet pipeline 3 enters a sodium tank, and the brine cannot enter the sodium demineralized bed 2 for regeneration because the water inlet. Similarly, if the kinetic water pressure is lower than the backwash water pressure, the backwash water may enter the softened water sodium bed 2 against the brine and cannot enter the softened water sodium bed 2 for regeneration.

(3) Similarly, if the softened water sodium bed 2 enters a backwashing state, the hydraulic valves on the backwashing water pipeline 8 and the hydraulic valves on the lower water discharge pipe correspond to no water flow in the hose 15, the hydraulic valves on the backwashing pipeline and the lower water discharge valve are opened, but backwashing can not be normally carried out, at the moment, power water exists in the hose 15 corresponding to each of the other hydraulic valves, the power water pressure is judged to be low or unstable, the power water pressure is lower than the medium water pressure in a certain pipeline, generally, the water pressure in the water inlet pipeline 3, namely the water pressure in the forward washing pipeline, is higher than the power water pressure, so that the hydraulic valves can not be closed or closed not tightly, water in the water inlet pipeline 3 enters the sodium tank, and because the water inlet pressure is higher than the backwashing water pressure, backwashing water can not enter the softened water sodium bed 2.

(4) Meanwhile, if the softened water sodium bed 2 enters a forward washing state, no water flows exist in the hose 15 corresponding to the upper hydraulic valve of the water inlet pipeline 3 (forward washing pipeline) and the upper hydraulic valve of the upper water discharge pipeline, the upper hydraulic valve and the lower water discharge valve of the forward washing pipeline are opened, but the upper hydraulic valve of the lower water discharge pipeline 5 is not closed tightly, so that the lower water discharge pipeline 5 discharges water, at the moment, forward washing water does not enter the softened water sodium bed 2 and then is discharged from the upper water discharge pipeline 4 to perform forward washing on the softened water sodium bed 2, but does not enter the softened water sodium bed 2 after flowing through the forward washing water inlet pipeline 3 and the hydraulic valve, but is directly discharged from the lower water discharge pipeline 5, so that the softened sodium bed 2 is not subjected to forward washing, at the moment, the condition that the pressure of a power water source is low or unstable, so that the upper hydraulic valve of the.

The embodiment also provides a control method of the softened water sodium bed, which comprises a water production control method, when the softened water sodium bed 2 produces softened water, the multi-valve controller 1 acts internally, the power water of the water inlet hydraulic valve 9 flows back to the multi-valve controller 1 from the top of the water inlet hydraulic valve 9 through the hose 15 and then is discharged through the hose 15 to flow into the trench, and simultaneously the power water of the water production hydraulic valve 12 flows back to the multi-valve controller 1 from the top of the water production hydraulic valve 12 through the hose 15 and then is discharged through the hose 15 to flow into the trench, at this time, tap water enters the softened water sodium bed 2 through the water inlet pipeline 3 and the water inlet hydraulic valve 9, and the produced softened water enters the soft water tank from the water production hydraulic valve 12 through the water production pipeline 5 and is supplied to a soft water point for utilization. When the water production is finished, the multi-valve controller 1 supplies power water to the water inlet hydraulic valve 9 and the water production hydraulic valve 12 again, so that the water inlet hydraulic valve and the water production hydraulic valve are closed, and the softened water sodium bed 2 is in a standby water production state.

Further, the method comprises a regeneration and replacement method, when the softened water sodium bed 2 reaches the set water yield and the softened water sodium bed 2 needs to be regenerated, the multi-valve controller 1 acts internally and enters a salt absorption and replacement process, namely: the power water of the brine hydraulic valve 13 flows back to the multi-valve controller 1 from the top of the brine hydraulic valve 13 through the hose 15 and then is discharged into the trench through the hose 15, and simultaneously the power water of the lower drainage hydraulic valve 11 flows back to the multi-valve controller 1 from the top of the lower drainage hydraulic valve 11 through the hose 15 and then is also discharged into the trench through the hose 15. At this time, the brine is introduced into the sodium softened water bed 2 through the brine pipe 7 and the brine hydraulic valve 13, and after the brine flows through the sodium softened water bed 2 and is replaced with the internal resin, the brine is discharged from the sodium softened water bed 2 into the trench through the lower drainage valve 11 and the lower drainage pipe 5.

And further, the method comprises a backwashing method, when the salt absorption and replacement of the sodium softened water bed 2 are finished and the backwashing process is carried out, the interior of the multi-valve controller 1 acts, power water of the backwashing hydraulic valve flows back to the multi-valve controller 1 from the top of the backwashing hydraulic valve through a hose 15 and then is discharged out of the hose 15 and flows into the trench, meanwhile, power water of the lower drainage hydraulic valve 11 flows back to the multi-valve controller 1 from the top of the lower drainage hydraulic valve 11 through the hose 15 and then is also discharged out of the hose 15 and flows into the trench, at the moment, backwashing water flows into the sodium softened water bed 2 through the backwashing hydraulic valve 14 via the backwashing water pipeline 8, and after backwashing water reversely flows in the sodium bed to clean internal resin, the backwashing water flows out of the sodium softened water bed through the lower drainage hydraulic valve 11 and the lower drainage pipeline 5 and then is discharged into the trench.

Further, the method comprises a forward washing method, when the backwashing of the sodium softened water bed 2 is finished and the forward washing process is carried out, the interior of the multi-valve controller 1 acts, the power water of the water inlet hydraulic valve 9 flows back to the multi-valve controller 1 from the top of the water inlet hydraulic valve 9 through the hose 15 and then is discharged out of the hose 15 and flows into the trench, meanwhile, the power water of the upper water discharge hydraulic valve 10 flows back to the multi-valve controller 1 from the top of the upper water discharge hydraulic valve 10 through the hose 15 and then is also discharged out of the hose 15 and flows into the trench, at the moment, the tap water enters the sodium softened water bed 2 through the water inlet pipeline 3 and the water inlet hydraulic valve 9, and the forward washing water flows in the forward direction of the sodium softened water bed 2 to wash the internal resin and then is discharged into the trench from the sodium softened water bed 2 through the upper water discharge pipeline 10 and the upper water discharge pipeline 4. When the forward washing process is finished, the softened water sodium bed 2 is in a standby state, if softened water needs to be produced, the sodium bed enters the water production process, and the steps are repeated.

The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.