A stable water quality system for an EDR water purifier

Abstract

The present invention relates to a stable water quality system for an EDR water purifier, aiming to stabilize the conductivity of the purified water outlet water quality and the purified water quality. A stable water quality system for an EDR water purifier includes two raw water inlet ends, an EDR membrane stack, four conductivity probes, a speed-adjusting circulation pump, a check valve, a purified water outlet end, a wastewater outlet end, electrode A, electrode B, and a control system module. Among them, the EDR membrane stack includes two inlet ends and two outlet ends, and the control system module is electrically connected to the four conductivity probes, the speed-adjusting circulation pump, electrode A, and electrode B respectively. In the present invention, four conductivity probes are set to read the water quality conductivity of 4 water ports at both ends of the EDR membrane stack, and the data is fed back to the control system module. The control system module prompts to adjust the voltage at the AB ends of the electrodes, enhancing or weakening the removal rate of the EDR membrane stack in real time, so as to stabilize the conductivity of the purified water outlet water quality and the purified water quality.

Description

Technical Field

[0001] The present invention relates to a stable water quality system for a water purifier, and more particularly to a stable water quality system for an EDR water purifier. Background Art

[0002] With the continuous improvement of people's living standards, most families have generally installed water purifiers to ensure drinking water health. However, after the water purifier is used, including the EDR water purifier, the quality of the effluent water will change due to the changes in the raw water quality and the treatment capacity of the water purifier. If the water quality is not adjusted in real time, it will affect the quality of the purified water, and further affect the user experience. In particular, making various teas, coffees, etc. requires specific water quality to achieve the best effect.

[0003] In response to this situation, the prior art usually cleans the EDR membrane stack regularly to improve the quality of the purified water, which is time-consuming and laborious. Summary of the Invention

[0004] The main object of the present invention is to provide a stable water quality system for an EDR water purifier. By setting four conductivity probes to read the water quality conductivity of 4 water ports at both ends of the EDR membrane stack, and feeding the data back to the control system module, the control system module prompts to adjust the voltage at the AB ends of the electrodes, and enhances or weakens the removal rate of the EDR membrane stack in real time, so as to stabilize the conductivity of the purified water effluent and stabilize the water quality of the purified water.

[0005] To achieve the above object, the technical solution adopted is: a stable water quality system for an EDR water purifier, including a first raw water inlet end, a second raw water inlet end, an EDR membrane stack, a first conductivity probe, a second conductivity probe, a third conductivity probe, a fourth conductivity probe, a speed regulation circulation pump, a one-way valve, a purified water outlet end, a wastewater outlet end, an electrode A, an electrode B, and a control system module. Among them, the EDR membrane stack includes a first water inlet end, a second water inlet end, a first water outlet end, and a second water outlet end; the first raw water inlet end, the first conductivity probe, and the first water inlet end of the EDR membrane stack are connected in sequence; the second raw water inlet end, the one-way valve, the third conductivity probe, and the second water inlet end of the EDR membrane stack are connected in sequence; the first water outlet end of the EDR membrane stack, the second conductivity probe, and the purified water outlet end are connected in sequence; the second water outlet end of the EDR membrane stack, the fourth conductivity probe, and the wastewater outlet end are connected in sequence; one end of the speed regulation circulation pump is connected to the third conductivity probe, and the other end is connected to the wastewater outlet end; the electrode A and the electrode B have opposite polarities and are respectively located at both ends of the EDR membrane stack; the control system module is electrically connected to the first conductivity probe, the second conductivity probe, the third conductivity probe, the fourth conductivity probe, the speed regulation circulation pump, the electrode A, and the electrode B respectively.

[0006] Further, it further includes an adjustable throttle valve. One end of the adjustable throttle valve is connected to the fourth conductivity probe, and the other end is connected to the wastewater outlet end. The control system module is electrically connected to the adjustable throttle valve.

[0007] Further, it further includes a flushing solenoid valve. One end of the flushing solenoid valve is connected to the speed-regulating circulation pump, and the other end is connected to the wastewater outlet end. The control system module is electrically connected to the flushing solenoid valve.

[0008] The working principle of the present invention is as follows: By setting four conductivity probes to read the water quality conductivity of 4 water inlets at both ends of the EDR stack and feeding the data back to the control system module, the control system module prompts to adjust the voltage at the AB ends of the electrodes, and enhances or weakens the removal rate of the EDR stack in real time.

[0009] The present invention adopts the stable water quality system of this EDR water purifier to stabilize the conductivity of the purified water outlet water quality and the purified water quality. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of a stable water quality system of an EDR water purifier.

[0011] 1. First raw water inlet end, 2. First conductivity probe, 3. EDR stack, 4. Second conductivity probe, 5. Purified water outlet end, 6. Second raw water inlet end, 7. Check valve, 8. Third conductivity probe, 9. Speed-regulating circulation pump, 10. Fourth conductivity probe, 11. Adjustable throttle valve, 12. Wastewater outlet end, 13. Flushing solenoid valve, 14. First water inlet end, 15. Second water inlet end, 16. First water outlet end, 17. Second water outlet end, 18. Electrode A, 19. Electrode B, 20. Control system module. Detailed Embodiment

[0012] Refer to Figure 1The specific description is as follows: A stable water quality system for an EDR water purifier, including a first raw water inlet end 1, a second raw water inlet end 6, an EDR membrane stack 3, a first conductivity probe 2, a second conductivity probe 4, a third conductivity probe 8, a fourth conductivity probe 10, a speed-regulating circulation pump 9, a one-way valve 7, a purified water outlet end 5, a wastewater outlet end 12, an electrode A 18, an electrode B 19, and a control system module 20. Among them, the EDR membrane stack 3 includes a first inlet end 14, a second inlet end 15, a first outlet end 16, and a second outlet end 17; the first raw water inlet end 1, the first conductivity probe 2, and the first inlet end 14 of the EDR membrane stack 3 are connected in sequence; the second raw water inlet end 6, the one-way valve 7, the third conductivity probe 8, and the second inlet end 15 of the EDR membrane stack 3 are connected in sequence; the first outlet end 16 of the EDR membrane stack 3, the second conductivity probe 4, and the purified water outlet end 5 are connected in sequence; the second outlet end 17 of the EDR membrane stack 3, the fourth conductivity probe 10, and the wastewater outlet end 12 are connected in sequence; one end of the speed-regulating circulation pump 9 is connected to the third conductivity probe 8, and the other end is connected to the wastewater outlet end 12; the electrode A 18 and the electrode B 19 have opposite polarities and are respectively located at both ends of the EDR membrane stack 3; the control system module 20 is electrically connected to the first conductivity probe 2, the second conductivity probe 4, the third conductivity probe 8, the fourth conductivity probe 10, the speed-regulating circulation pump 9, the electrode A 18, and the electrode B 19.

[0013] Furthermore, it also includes an adjustable throttle valve 11. One end of the adjustable throttle valve 11 is connected to the fourth conductivity probe 10, and the other end is connected to the wastewater outlet end 12. The control system module 20 is electrically connected to the adjustable throttle valve 11. By adjusting the adjustable throttle valve 11, the conductivity of the water quality on the wastewater side can be controlled, avoiding the risk of scale formation due to excessive conductivity of the water quality on the wastewater side. At the same time, the wastewater flow can be optimized to achieve the purpose of water conservation.

[0014] Furthermore, it also includes a flushing solenoid valve 13. One end of the flushing solenoid valve 13 is connected to the speed-regulating circulation pump 9, and the other end is connected to the wastewater outlet end 12. The control system module 20 is electrically connected to the flushing solenoid valve 13. By the flushing solenoid valve 13, the conductivity of the water quality on the wastewater side can be further controlled, avoiding the risk of scale formation on the wastewater side, optimizing the wastewater flow, and achieving the purpose of water conservation.

[0015] Embodiment

[0016] Such as Figure 1As shown in the figure, the stable water quality system of the EDR water purifier includes a first raw water inlet end 1, a second raw water inlet end 6, an EDR membrane stack 3, a first conductivity probe 2, a second conductivity probe 4, a third conductivity probe 8, a fourth conductivity probe 10, a speed-regulating circulation pump 9, a one-way valve 7, a purified water outlet end 5, a wastewater outlet end 12, an electrode A 18, an electrode B 19, a control system module 20, an adjustable throttle valve 11, and a flushing solenoid valve 13. Among them, the EDR membrane stack 3 includes a first inlet end 14, a second inlet end 15, a first outlet end 16, and a second outlet end 17; the first raw water inlet end 1, the first conductivity probe 2, and the first inlet end 14 of the EDR membrane stack 3 are connected in sequence; the second raw water inlet end 6, the one-way valve 7, the third conductivity probe 8, and the second inlet end 15 of the EDR membrane stack 3 are connected in sequence; the first outlet end 16 of the EDR membrane stack 3, the second conductivity probe 4, and the purified water outlet end 5 are connected in sequence; the second outlet end 17 of the EDR membrane stack 3, the fourth conductivity probe 10, and the wastewater outlet end 12 are connected in sequence; one end of the speed-regulating circulation pump 9 is connected to the third conductivity probe 8, and the other end is connected to the wastewater outlet end 12; the electrode A 18 and the electrode B 19 have opposite polarities and are respectively located at both ends of the EDR membrane stack 3; one end of the adjustable throttle valve 11 is connected to the fourth conductivity probe 10, and the other end is connected to the wastewater outlet end 12; one end of the flushing solenoid valve 13 is connected to the speed-regulating circulation pump 9, and the other end is connected to the wastewater outlet end 12; the control system module 20 is electrically connected to the first conductivity probe 2, the second conductivity probe 4, the third conductivity probe 8, the fourth conductivity probe 10, the speed-regulating circulation pump 9, the electrode A 18, the electrode B 19, the adjustable throttle valve 11, and the flushing solenoid valve 13.

[0017] The working principle of the stable water quality system of the EDR water purifier is as follows: By setting four conductivity probes to read the water quality conductivity of 4 water ports at both ends of the EDR membrane stack and feeding the data back to the control system module, the control system module prompts to adjust the voltage at the AB ends of the electrodes, and enhances or weakens the removal rate of the EDR membrane stack in real time, so as to stabilize the conductivity of the purified water outlet water quality and stabilize the purified water quality. At the same time, the control system module controls the operation of the adjustable throttle valve and the flushing solenoid valve according to the water quality conductivity data measured in the wastewater to control the water quality conductivity on the wastewater side, avoid the risk of increased scaling due to too high water quality conductivity on the wastewater side, and at the same time optimize the wastewater flow rate to achieve the purpose of water conservation.

[0018] The above-mentioned embodiments and examples only represent several embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A stable water quality system for an EDR water purifier, characterized in that, It includes a first raw water inlet end, a second raw water inlet end, an EDR membrane stack, a first conductivity probe, a second conductivity probe, a third conductivity probe, a fourth conductivity probe, a speed-regulating circulation pump, a check valve, a purified water outlet end, a wastewater outlet end, an electrode A, an electrode B, and a control system module. Among them, the EDR membrane stack includes a first inlet end, a second inlet end, a first outlet end, and a second outlet end; the first raw water inlet end, the first conductivity probe, and the first inlet end of the EDR membrane stack are connected in sequence; the second raw water inlet end, the check valve, the third conductivity probe, and the second inlet end of the EDR membrane stack are connected in sequence; the first outlet end of the EDR membrane stack, the second conductivity probe, and the purified water outlet end are connected in sequence; the second outlet end of the EDR membrane stack, the fourth conductivity probe, and the wastewater outlet end are connected in sequence; one end of the speed-regulating circulation pump is connected to the third conductivity probe, and the other end is connected to the wastewater outlet end; the electrode A and the electrode B have opposite polarities and are respectively located at both ends of the EDR membrane stack; the control system module is electrically connected to the first conductivity probe, the second conductivity probe, the third conductivity probe, the fourth conductivity probe, the speed-regulating circulation pump, the electrode A, and the electrode B.

2. The stable water quality system for an EDR water purifier according to claim 1, characterized in that: It further includes an adjustable throttle valve. One end of the adjustable throttle valve is connected to the fourth conductivity probe, and the other end is connected to the wastewater outlet end. The control system module is electrically connected to the adjustable throttle valve.

3. The stable water quality system for an EDR water purifier according to claim 2, characterized in that: It further includes a flushing solenoid valve. One end of the flushing solenoid valve is connected to the speed-regulating circulation pump, and the other end is connected to the wastewater outlet end. The control system module is electrically connected to the flushing solenoid valve.

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