TWM623764U - Switching system of edr water purifier with three-way solenoid valve - Google Patents

Abstract

A switching system for an EDR water purifier has a first inlet end, a second inlet end, a first three-way solenoid valve, a second three-way solenoid valve, a third three-way solenoid valve, a fourth three-way solenoid valve, an EDR membrane stack, a first outlet end, and a second outlet end. The EDR membrane stack has a first inlet port, a second inlet port, a first outlet port, a second outlet port, a first electrode, and a second electrode. Each three-way solenoid valve has an inlet opening, a first outlet opening, and a second outlet opening. Each outlet opening of each three-way solenoid valve can be opened and closed for switching two flow-passages of the EDR membrane stack. Therefore, the speed of forming limescale will be slowed down, which extends the service life of the EDR membrane stack and improves the efficiency of making freshwater.

Description

Reversing System of Inverted Electrodialysis Water Purifier with Three-Way Solenoid Valve

This creation relates to a reversing system of a water purifier, in particular to a reversing system of an electrodialysis (Electrodialysis Reversal, EDR) water purifier.

With the continuous improvement of people's quality of life, most families have installed water purifiers to ensure healthy drinking water. However, when the reversed-pole electrodialysis membrane stack does not commutate for a long time, the ions in the concentrated water chamber of the reversed-pole electrodialysis membrane will continue to accumulate, forming precipitated scales, resulting in the reversed-pole electrodialysis membrane. At the same time, the first electrode is positively charged for a long time, and the second electrode is negatively charged for a long time, which affects the service life of the inverted electrodialysis membrane stack and the positive and second electrodes, resulting in a decrease in the use efficiency of the water purifier.

In view of this situation, in the prior art, the reverse-electrode electrodialysis membrane stack, the cathode and the anode are usually flushed periodically to reduce the total dissolved solids (TDS) in the membrane stack, which wastes water and is time-consuming and labor-intensive.

In view of this, it is an urgent problem to be solved in the industry to propose a better improvement solution.

The main purpose of this creation is to provide a reversing system for the reverse-pole electrodialysis water purifier, which can switch the two water paths passing through the reverse-pole electrodialysis membrane stack without changing the two water inlet ends and the two water outlet ends. , to realize the switch between the purified water branch and the concentrated water branch, and by adjusting the positive and negative energization of the electrodes, the reverse pole of the reversed-pole electrodialysis membrane stack electrode can be realized, so as to effectively alleviate the formation of scale on the surface of the membrane stack and prolong the reversed-pole electrodialysis membrane. The service life of the stack and electrodes improves the water purification efficiency of the inverted electrodialysis membrane stack.

In order to achieve the above purpose, the adopted technical scheme is: a reversing system of an inverted-pole electrodialysis water purifier, comprising a first water inlet end, a second water inlet end, a first three-way solenoid valve, and a second three-way valve. A solenoid valve, a third three-way solenoid valve, a fourth three-way solenoid valve, an inverted-pole electrodialysis membrane stack, a first water outlet, and a second water outlet, wherein the inverted-pole electrodialysis membrane stack includes a first inlet a water port, a second water inlet port, a first water outlet port, a second water outlet port, a first electrode, and a second electrode; each of the three-way solenoid valves includes a water inlet port, a first water outlet port, and a second water outlet port; The first water inlet is connected with the water inlet of the first three-way solenoid valve, and the second water inlet is connected with the water inlet of the second three-way solenoid valve; The water inlet of the solenoid valve is connected, and the second water outlet is connected with the water inlet of the fourth three-way solenoid valve; the first water inlet of the inverted electrodialysis membrane stack is respectively connected with the first three-way solenoid valve and the second three-way solenoid A water outlet of the valve is connected to each other, and the second water inlet port of the inverted electrodialysis membrane stack is connected to the other water outlet of the first three-way solenoid valve and the second three-way solenoid valve respectively, so as to be able to switch the water circuit. The first water outlet is respectively connected with a water outlet of the third three-way solenoid valve and the fourth three-way solenoid valve, and the second water outlet is respectively connected with the third three-way solenoid valve and the fourth three-way solenoid valve. The other water outlet is connected to each other so as to be able to switch the water circuit; the water outlet of each of the three-way solenoid valves can be opened and closed to switch the two water circuits through the inverted electrodialysis membrane stack; by adjusting the electrode The positive and negative electrodes are energized, so that the polarities of the first electrode and the second electrode are reversed.

Further, the reversing system includes a passage state and a reversing state, wherein, in the passage state, the first water outlet of the first three-way solenoid valve is closed, and the second water outlet is opened and communicated with the reverse pole electrodialysis The first water inlet port of the membrane stack is connected; the first water outlet of the second three-way solenoid valve is closed, and the second water outlet is opened and connected with the second water inlet port of the inverted electrodialysis membrane stack; the third three-way solenoid valve The first water outlet of the valve is closed, and the second water outlet is opened and connected to the first water outlet; the first water outlet of the fourth three-way solenoid valve is closed, and the second water outlet is opened and connected to the second water outlet. ;

In the reversing state, the second water outlet of the first three-way solenoid valve is closed, and the first water outlet is opened and connected to the second water inlet port of the inverted electrodialysis membrane stack; The second water outlet is closed, the first water outlet is opened and connected to the first water inlet port of the inverted electrodialysis membrane stack; the second water outlet of the third three-way solenoid valve is closed, and the first water outlet is opened and connected to the The second water outlet is connected to the second water outlet; the second water outlet of the fourth three-way solenoid valve is closed, the first water outlet is opened and connected to the first water outlet, and the positive and negative energization of the electrodes are adjusted at the same time, so that the first electrode, the first water outlet The polarities of the two electrodes are reversed with each other.

Further, the reversing system further includes an electronic control device, which can control the opening and closing of the water outlet of each of the three-way solenoid valves and the polarity reversal of the first electrode and the second electrode.

Further, the reversing system also includes a pipeline between the water outlet of the three-way solenoid valve and the water inlet port of the inverted electrodialysis membrane stack, and the connection between the water outlet of the three-way solenoid valve and the water outlet. One-way valves are installed on the pipelines between them.

The working principle of this creation is as follows: since there are three-way solenoid valves on both sides of the inverted electrodialysis membrane stack, the water inlet branch and the water outlet branch, the reversing system can control one of the three-way solenoid valves in actual use. When the water outlet is opened, the other water outlet is closed, so that the two water circuits on both sides of the inverted electrodialysis membrane stack can be switched to realize the switching of the purified water branch and the concentrated water branch. The reverse pole of the electrode of the electrodialysis membrane stack.

This creation adopts the commutation system of the reverse-pole electrodialysis membrane stack, which can effectively alleviate the formation of scale on the surface of the membrane stack, prolong the service life of the reverse-pole electrodialysis membrane stack and electrodes, and improve the cleanliness of the reverse-pole electrodialysis membrane stack. water efficiency.

The specific description is as follows with reference to FIG. 1: A reversing system of an inverted-pole electrodialysis water purifier includes a first water inlet 1, a second water inlet 2, a first three-way solenoid valve 3, and a second three-way solenoid valve 4. The third three-way solenoid valve 5, the fourth three-way solenoid valve 6, the inverted-pole electrodialysis membrane stack 9, the first water outlet 7, and the second water outlet 8, wherein the inverted-pole electrodialysis membrane stack 9 includes a first water inlet port 91, a second water inlet port 92, a first water outlet port 93, a second water outlet port 94, a first electrode 95, and a second electrode 96; each of the three-way solenoid valves includes a water inlet, The first water outlet and the second water outlet; the first water inlet 1 is connected to the water inlet 30 of the first three-way solenoid valve 3 , and the second water inlet 2 is connected to the water inlet 40 of the second three-way solenoid valve 4 Connected; the first water outlet 93 of the reverse-pole electrodialysis membrane stack 9 is connected with the water inlet 50 of the third three-way solenoid valve 5, and the second water outlet 94 is connected with the water inlet 60 of the fourth three-way solenoid valve 6 ; The first water inlet port 91 of the inverted pole type electrodialysis membrane stack 9 is connected with one of the water outlets of the first three-way solenoid valve 3 and is connected with one of the water outlets of the second three-way solenoid valve 4, and the said The second water inlet port 92 of the reverse-pole electrodialysis membrane stack 9 is connected to another water outlet of the first three-way solenoid valve 3 and is connected to another water outlet of the second three-way solenoid valve 4, so as to be able to switch the water circuit ; The first water outlet 7 is connected with one of the water outlets of the third three-way solenoid valve 5 and is connected with one of the water outlets of the fourth three-way solenoid valve 6, and the second water outlet 8 is connected with the third three-way The other water outlet of the solenoid valve 5 is connected to another water outlet of the fourth three-way solenoid valve 6, so as to be able to switch the water circuit; the water outlet of each of the three-way solenoid valves can be opened and closed so that the The two water circuits of the reverse-pole electrodialysis membrane stack are switched; by adjusting the positive and negative energization of the electrodes, the polarities of the first electrode 95 and the second electrode 96 are reversed.

Example:

As shown in FIG. 2 , in the channel state, the first electrode 95 is positively electrified, the second electrode 96 is electrified negatively, the first water outlet 31 of the first three-way solenoid valve 3 is closed, and the second water outlet 32 is opened and connected with the single The direction valve 12 is connected with the first water inlet port 91 of the reverse-pole electrodialysis membrane stack 9; the first water outlet 41 of the second three-way solenoid valve 4 is closed, and the second water outlet 42 is opened and connected to the one-way valve 22 and the reverse valve. The second water inlet port 92 of the polar electrodialysis membrane stack 9 is connected; the first water outlet 51 of the third three-way solenoid valve 5 is closed, and the second water outlet 52 is opened and connected to the one-way valve 71 and the first water outlet 7 ; The first water outlet 61 of the fourth three-way solenoid valve 6 is closed, and the second water outlet 62 is opened and connected with the one-way valve 82 and the second water outlet 8; in this way, the raw water passes through the first three water inlets from the first water inlet end 1. The solenoid valve 3 and the one-way valve 12 enter the first water inlet port 91 of the reverse-pole electrodialysis membrane stack 9, and pass through the first water outlet interface 93 and the third three-way after passing through the reverse-pole electrodialysis membrane stack 9. The solenoid valve 5, the one-way valve 71 and the first water outlet 7 flow out; the raw water flows from the second water inlet 2 through the second three-way solenoid valve 4 and the one-way valve 22 into the second part of the inverted electrodialysis membrane stack 9. The water inlet port 92 flows out through the second water outlet port 94 , the fourth three-way solenoid valve 6 , the one-way valve 82 and the second water outlet end 8 after passing through the reverse-pole electrodialysis membrane stack 9 .

As shown in FIG. 3 , in the reversing state, the first electrode 95 is negatively charged, the second electrode 96 is positively charged, the second water outlet 32 of the first three-way solenoid valve 3 is closed, and the first water outlet 31 is opened and connected to The one-way valve 11 is connected with the second water inlet port 92 of the inverted electrodialysis membrane stack 9; the second water outlet 42 of the second three-way solenoid valve 4 is closed, and the first water outlet 41 is opened and connected to the one-way valve 21 and The first water inlet port 91 of the inverted electrodialysis membrane stack 9 is connected; the second water outlet 52 of the third three-way solenoid valve 5 is closed, and the first water outlet 51 is opened and connected to the one-way valve 81 and the second water outlet 8 Connected; the second water outlet 62 of the fourth three-way solenoid valve 6 is closed, and the first water outlet 61 is opened and connected to the one-way valve 72 and the first water outlet 7; The three-way solenoid valve 3 and the one-way valve 11 enter the second water inlet port 92 of the reverse-pole electrodialysis membrane stack 9, and pass through the second water outlet port 94 and the fourth three-way after passing through the reverse-pole electrodialysis membrane stack 9. The solenoid valve 6, the one-way valve 72 and the first water outlet 7 flow out; the raw water enters the first inlet of the inverted electrodialysis membrane stack 9 from the second water inlet 2 through the second three-way solenoid valve 4 and the one-way valve 21. The water port 91 flows out through the first water outlet port 93 , the third three-way solenoid valve 5 , the one-way valve 81 and the second water outlet end 8 after passing through the reverse-pole electrodialysis membrane stack 9 .

In this way, as described above, by switching the flow direction of the water path between the channel state and the reversing state, the two water paths on both sides of the inverted electrodialysis membrane stack are switched to realize the switching of the purified water branch and the concentrated water branch. Adjust the positive and negative energization of the electrodes to realize the replacement of the electrodes of the reversed-pole electrodialysis membrane stack, thereby effectively alleviating the formation of scale on the surface of the membrane stack, prolonging the service life of the reversed-pole electrodialysis membrane stack and electrodes, and improving the reversed-pole electrodialysis membrane stack. water purification efficiency.

In addition, the reversing system of the reverse-pole electrodialysis water purifier also includes an electronic control device (not shown in the figure), which can control the opening and closing of the water outlets of each three-way solenoid valve and adjust the positive and negative energization of the electrodes. It realizes the switching of the electrodes of the inverted electrodialysis membrane stack. For example, after the reverse-pole electrodialysis membrane stack runs for a period of time, the electronic control device can control to open one water outlet of the three-way solenoid valve, close the other water outlet at the same time, and adjust the positive and negative energization of the electrodes at the same time, so as to realize the access state and change. switch to state.

The above-mentioned embodiments and examples only represent several embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present creation, several modifications and improvements can be made, which all belong to the protection scope of the present creation. Accordingly, the scope of protection of this patent for creation should be governed by the appended claims.

In addition, it should be noted that, each specific technical feature described in the above-mentioned specific implementation manner may be combined in any suitable manner under the circumstance that there is no contradiction. In order to avoid unnecessary repetition, various possible combinations are not described in this creation.

1: The first water inlet 2: The second water inlet 3: The first three-way solenoid valve 30: water inlet 31: The first water outlet 32: The second water outlet 4: The second three-way solenoid valve 40: water inlet 41: The first water outlet 42: The second water outlet 5: The third three-way solenoid valve 50: water inlet 51: The first water outlet 52: The second water outlet 6: Fourth three-way solenoid valve 60: water inlet 61: The first water outlet 62: The second water outlet 7: The first water outlet 8: The second water outlet 9: Inverted Electrodialysis Membrane Stack 91: The first water inlet 92: Second water inlet 93: The first water outlet 94: The second water outlet 95: first electrode 96: Second electrode 11: one-way valve 12: one-way valve 21: one-way valve 22: one-way valve 71: one-way valve 72: one-way valve 81: one-way valve 82: one-way valve

Figure 1 is a schematic structural diagram of a reversing system of a reverse-pole electrodialysis water purifier. Fig. 2 is a schematic diagram of a passage state of a reversing system of a reverse-pole electrodialysis water purifier. Fig. 3 is a schematic diagram of the reversing state of the reversing system of a reverse-pole electrodialysis water purifier.

1: The first water inlet

2: The second water inlet

3: The first three-way solenoid valve

30: water inlet

31: The first water outlet

32: The second water outlet

4: The second three-way solenoid valve

40: water inlet

41: The first water outlet

42: The second water outlet

5: The third three-way solenoid valve

50: water inlet

51: The first water outlet

52: The second water outlet

6: Fourth three-way solenoid valve

60: water inlet

61: The first water outlet

62: The second water outlet

7: The first water outlet

8: The second water outlet

9: Inverted Electrodialysis Membrane Stack

91: The first water inlet

92: Second water inlet

93: The first water outlet

94: The second water outlet

95: first electrode

96: Second electrode

Claims (4)

A reversing system of an inverted-pole electrodialysis water purifier is characterized in that it comprises a first water inlet end, a second water inlet end, a first three-way solenoid valve, a second three-way solenoid valve, a A third three-way solenoid valve, a fourth three-way solenoid valve, an inverted-pole electrodialysis membrane stack, a first water outlet, and a second water outlet, wherein, The inverted-pole electrodialysis membrane stack includes a first water inlet port, a second water inlet port, a first water outlet port, a second water outlet port, a first electrode, and a second electrode; The first three-way solenoid valve includes a water inlet, a first water outlet, and a second water outlet; The second three-way solenoid valve includes a water inlet, a first water outlet, and a second water outlet; The third three-way solenoid valve includes a water inlet, a first water outlet, and a second water outlet; The first water inlet is connected to the water inlet of the first three-way solenoid valve, and the second water inlet is connected to the water inlet of the second three-way solenoid valve; The first water outlet of the inverted-pole electrodialysis membrane stack is connected to the water inlet of the third three-way solenoid valve, and the second water outlet of the inverted-pole electrodialysis membrane stack is connected to the water inlet of the third three-way solenoid valve. The water inlets of the fourth three-way solenoid valve are connected; The first water inlet port of the reverse-pole electrodialysis membrane stack is connected to one of the first water outlet and the second water outlet of the first three-way solenoid valve, and is connected to the One of the first water outlet and the second water outlet of the second three-way solenoid valve is connected, and the second water inlet port of the inverted electrodialysis membrane stack is connected to the first three-way The other of the first water outlet and the second water outlet of the solenoid valve is connected to the other of the first water outlet and the second water outlet of the second three-way solenoid valve connected to enable waterway switching; The first water outlet is connected to one of the first water outlet and the second water outlet of the third three-way solenoid valve, and is connected to the first water outlet of the fourth three-way solenoid valve. One of the water outlet and the second water outlet is connected, and the second water outlet is connected to the other of the first water outlet and the second water outlet of the third three-way solenoid valve, and is connected with the other of the first water outlet and the second water outlet of the fourth three-way solenoid valve, so as to be able to switch the water path; The first and second water outlets of the first three-way solenoid valve, the second three-way solenoid valve, the third three-way solenoid valve, and the fourth three-way solenoid valve can be opened and closed so as to switch the two water circuits passing through the inverted electrodialysis membrane stack; by adjusting the positive and negative energization of the first electrode and the first electrode, the polarities of the first electrode and the second electrode are mutually switch. The reversing system of an inverted-pole electrodialysis water purifier according to claim 1, comprising a passage state and a reversing state, wherein, In the access state, the first water outlet of the first three-way solenoid valve is closed, and the second water outlet is opened and connected to the first water inlet port of the reverse-pole electrodialysis membrane stack ; the first water outlet of the second three-way solenoid valve is closed, and the second water outlet is opened and connected with the second water inlet port of the inverted electrodialysis membrane stack; the third The first water outlet of the three-way solenoid valve is closed, and the second water outlet is opened and connected to the first water outlet; the first water outlet of the fourth three-way solenoid valve is closed, and the third water outlet is closed. The second water outlet is opened and connected with the second water outlet; In the reversing state, the second water outlet of the first three-way solenoid valve is closed, and the first water outlet is opened and connected to the second water inlet port of the reverse-pole electrodialysis membrane stack connected; the second water outlet of the second three-way solenoid valve is closed, and the first water outlet is opened and connected to the first water inlet port of the inverted electrodialysis membrane stack; the first water outlet The second water outlet of the three-way solenoid valve is closed, the first water outlet is opened and connected to the second water outlet; the second water outlet of the fourth three-way solenoid valve is closed, the The first water outlet is opened and connected to the first water outlet, and the positive and negative energization of the first electrode and the second electrode is adjusted at the same time, so that the polarities of the first electrode and the second electrode are reversed. The reversing system for an inverted-pole electrodialysis water purifier as claimed in claim 1, further comprising an electronic control device capable of controlling the first three-way solenoid valve and the second three-way solenoid valve. The opening and closing of the water outlet of the solenoid valve, the third three-way solenoid valve, and the fourth three-way solenoid valve, and the polarity of the first electrode and the second electrode are reversed. The reversing system of the reverse pole type electrodialysis water purifier as described in claim 2 or 3, wherein: A one-way valve is arranged in the pipeline between the first water outlet of the first three-way solenoid valve and the second water inlet port of the inverted electrodialysis membrane stack; the first three-way A one-way valve is arranged in the pipeline between the second water outlet of the solenoid valve and the first water inlet port of the inverted electrodialysis membrane stack; A one-way valve is arranged in the pipeline between the first water outlet of the second three-way solenoid valve and the first water inlet port of the reverse-pole electrodialysis membrane stack; the second three-way A one-way valve is arranged in the pipeline between the second water outlet of the solenoid valve and the second water inlet port of the reverse-pole electrodialysis membrane stack; A one-way valve is arranged in the pipeline between the first water outlet and the second water outlet of the third three-way solenoid valve; the second water outlet of the third three-way solenoid valve is connected to the second water outlet. A one-way valve is arranged in the pipeline between the first water outlet ends; The pipeline between the first water outlet and the first water outlet of the fourth three-way solenoid valve is provided with a one-way valve; the second water outlet of the fourth three-way solenoid valve is connected to the first water outlet. A one-way valve is arranged in the pipeline between the second water outlet ends.

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