Exhaust structure and water electrolysis module with same

Abstract

An exhaust structure is characterized by comprising an exhaust connector, a sealing ring and an exhaust cap, the exhaust connector is axially hollow, and an exhaust port is formed in the upper end of the exhaust connector; the sealing ring is arranged at the lower end part of the outer side of the exhaust joint; the exhaust cap is detachably sleeved on the outer side of the exhaust connector, the lower end of the exhaust cap is matched with the sealing ring in a sealing mode, the inner wall of the upper end of the exhaust cap is matched with an exhaust port of the exhaust connector in a sealing mode, an exhaust hole is formed in the outer side face of the exhaust cap, and the exhaust cap can move up and down relative to the exhaust connector in the state of being separated from the sealing ring. The utility model further discloses a water electrolysis module. The exhaust structure automatically exhausts during re-electrolysis, the exhaust function is automatically closed when the electrolysis is not carried out, and outside air is prevented from entering the electrolysis chamber to affect the water electrolysis effect while exhaust is guaranteed.

Description

Technical Field

[0001] The utility model relates to an exhaust port structure, which can be applied to a water electrolysis module to realize automatic exhaust. The utility model also relates to a water electrolysis module. Background Art

[0002] The electrolytic water module (electrolytic water tank) consists of a tank body, an anode and a cathode, and most of them use a diaphragm to separate the anode chamber and the cathode chamber. When direct current passes through the electrolytic cell, an oxidation reaction occurs at the interface between the anode and the solution, and a reduction reaction occurs at the interface between the cathode and the solution to produce the desired product. During the reaction process of the electrolytic water module, a large amount of gas will be generated in the cathode chamber and the anode chamber, which needs to be discharged immediately.

[0003] At present, the common method is to directly open holes in the cathode chamber and the anode chamber to discharge the gas, which has the following problems:

[0004] First, if the pores are always open, outside air will enter the electrolysis chamber and react with the electrolyzed water in the chamber, rendering the electrolyzed water ineffective. For example, carbon dioxide will react with alkaline electrolyzed water, lowering the pH value of the alkaline electrolyzed water, thereby affecting its effect.

[0005] Second, if the pores are always open, the water in the electrolysis chamber will evaporate, and the electrolysis reaction is a heat-generating process. The high temperature of the liquid in the electrolysis chamber will accelerate the evaporation and loss of water, affecting the stability of the electrolysis.

[0006] Third, the ion exchange membrane, the core component of the water electrolysis module, needs to be preserved by being soaked in water. It needs to be soaked in water during transportation. The pores are always open and water will flow out during transportation. Utility Model Content

[0007] The first technical problem to be solved by the utility model is to provide an exhaust structure which can automatically exhaust during electrolysis and automatically close when electrolysis is not performed, in view of the above technical status quo.

[0008] The second technical problem to be solved by the utility model is to provide a water electrolysis module which can automatically exhaust air during electrolysis and automatically shut down when not electrolyzing, in view of the above technical status quo.

[0009] The utility model solves the above-mentioned first technical problem by adopting the technical solution: an exhaust structure characterized by comprising

[0010] An exhaust joint, which is axially hollow and has an exhaust port formed at the upper end;

[0011] A sealing ring, disposed at the lower end of the outer side of the exhaust joint; and

[0012] The exhaust cap can be detachably mounted on the outside of the aforementioned exhaust joint and the lower end is sealed with the aforementioned sealing ring, and the inner wall of the upper end is tightly matched with the exhaust port of the exhaust joint. An exhaust hole is provided on the outer side of the exhaust cap. The exhaust cap can move up and down relative to the exhaust joint when the aforementioned sealing ring is detached.

[0013] Preferably, the lower end of the exhaust joint has an annular groove on the outside, and the sealing ring is arranged on the outside of the annular groove. Of course, the sealing ring and the exhaust joint can also be integrally formed.

[0014] Preferably, the exhaust cap comprises a sleeve portion and a sealing portion located at a port of the sleeve portion, the exhaust hole is provided on the sleeve portion, and the sealing portion can seal the exhaust port of the exhaust joint.

[0015] Furthermore, the inner wall of the connection between the sleeve portion and the sealing portion has a first convex ring extending radially inward, and the exhaust joint has a second convex ring extending radially outward near the exhaust port. The first convex ring and the second convex ring cooperate to limit the exhaust cap from detaching from the exhaust joint.

[0016] To provide sealing, the lower end of the sleeve portion has an inner ring groove that seals with the sealing ring.

[0017] The technical solution adopted by the utility model to solve the second technical problem is: a water electrolysis module, characterized in that the water electrolysis module has a cathode chamber and an anode chamber, and the cathode chamber and the anode chamber are both provided with an exhaust structure.

[0018] Furthermore, the water electrolysis module comprises

[0019] The housing is H-shaped and includes a cathode chamber, an anode chamber, and an electrolysis chamber disposed transversely between the cathode chamber and the anode chamber, wherein the cathode chamber and the anode chamber are disposed longitudinally;

[0020] A diaphragm, which is disposed in the aforementioned electrolytic chamber and divides the electrolytic chamber into two;

[0021] an anode plate, disposed in the electrolytic chamber and close to the diaphragm and away from the cathode chamber; and

[0022] The cathode plate is arranged in the electrolytic chamber and close to the diaphragm and away from the anode chamber.

[0023] A first insulating screen is provided between the anode sheet and the diaphragm. A second insulating screen is provided between the cathode sheet and the diaphragm. The insulating screen has the functions of protecting the cation exchange membrane, accelerating exhaust, inhibiting scale deposition and accelerating ion transfer.

[0024] Compared with the prior art, the utility model has the following advantages: the exhaust structure in the utility model automatically exhausts during electrolysis and automatically turns off the exhaust function when not electrolyzing, thereby ensuring exhaust while preventing outside air from entering the electrolysis chamber and affecting the electrolysis effect. The number of pores is automatically adjusted according to the size of the gas to avoid blockage in gas discharge. Part of the water vapor is intercepted and recovered on the exhaust joint to avoid evaporation and loss of water in the electrolysis chamber, thereby ensuring stable electrolysis. In the initial state, the exhaust cap is tightly matched with the sealing ring, and has a completely sealed function to prevent the diaphragm from infiltrating liquid during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment.

[0026] Figure 2 It is a partial exploded view of the embodiment.

[0027] Figure 3 It is a three-dimensional cross-sectional view of an embodiment.

[0028] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0029] Figure 5 for Figure 3 Enlarged view of part B in the middle.

[0030] Figure 6 for Figure 3 Enlarged view of part C in the middle. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the water electrolysis module in this embodiment comprises a cathode chamber 11 and an anode chamber 12, and both the cathode chamber 11 and the anode chamber 12 are provided with an exhaust structure.

[0033] Combination Figure 4 As shown, the exhaust structure in this embodiment includes an exhaust joint 2, a sealing ring 4 and an exhaust cap 3. The exhaust joint 2 is axially hollow and an exhaust port is formed at the upper end; the sealing ring 4 is arranged at the lower end of the outer side of the exhaust joint 2; the exhaust cap 3 is detachably sleeved on the outer side of the exhaust joint 2 and the lower end is sealed with the sealing ring 4, and the inner wall of the upper end is tightly matched with the exhaust port of the exhaust joint 2. The outer side surface of the exhaust cap 3 is provided with an exhaust hole 33, and the exhaust cap 3 can move up and down relative to the exhaust joint 2 when the sealing ring 4 is detached.

[0034] The outer side of the lower end of the exhaust joint 2 has an annular groove 21, and the sealing ring 4 is arranged outside the annular groove 21. The exhaust cap 3 includes a sleeve portion 32 and a cover portion 31 located at the end of the sleeve portion 32. The exhaust hole 33 is opened on the sleeve portion 32, and the cover portion 31 can seal the exhaust port of the exhaust joint 2. The inner wall of the connection between the sleeve portion 32 and the cover portion 31 has a first convex ring 34 extending radially inward, and the exhaust joint 2 has a second convex ring 22 extending radially outward near the exhaust port. The first convex ring 34 cooperates with the second convex ring 22 to limit the exhaust cap 3 from being separated from the exhaust joint 2. The lower end of the sleeve portion 32 has an inner ring groove 35 that is sealed with the sealing ring 4.

[0035] Combination Figure 4 As shown, during transportation, the exhaust cap and the sealing ring are pressed together to form a completely sealed state to prevent the diaphragm from being soaked in the protective water solution and flowing out.

[0036] Combination Figure 5 As shown, when the user arrives at the home, the exhaust cap is lifted up to a free sealing state. When electrolysis produces gas, the exhaust cap will automatically lift up under the action of air pressure to expose the exhaust holes. The greater the air pressure, the more exhaust holes are exposed, and the gas is discharged more smoothly.

[0037] When no gas is generated, the exhaust cap returns to a free sealing state to prevent the outside air from reacting with the electrolyzed water and causing failure, while also preventing the internal water vapor from volatilizing.

[0038] Combination Figure 6 As shown, the water electrolysis module in this embodiment includes a housing 1 , a diaphragm 53 , an anode plate 55 , a cathode plate 51 , a first insulating net 54 , and a second insulating net 52 .

[0039] The housing 1 is H-shaped, including a cathode chamber 11, an anode chamber 12, and an electrolysis chamber 13 disposed transversely between the cathode chamber 11 and the anode chamber 12. The cathode chamber 11 and the anode chamber 12 are both disposed longitudinally. The anode chamber 12 is used to place an electrolyte, which may be sodium chloride or sodium carbonate. During electrolysis, the cathode produces hydrogen, and the anode produces oxygen and chlorine or oxygen and carbon dioxide.

[0040] The diaphragm 53 is disposed in the electrolysis chamber 13 and divides the electrolysis chamber 13 into two parts; the anode sheet 55 is disposed in the electrolysis chamber 13 and close to the diaphragm 53 and away from the cathode chamber 11; the cathode sheet 51 is disposed in the electrolysis chamber 13 and close to the diaphragm 53 and away from the anode chamber 12. A first insulating mesh 54 is disposed between the anode sheet 55 and the diaphragm 53. A second insulating mesh 52 is disposed between the cathode sheet 51 and the diaphragm 53.

[0041] The shell integrates the electrolytic cell, large-capacity cathode chamber (strong alkaline electrolyzed water generation chamber) and large-capacity anode chamber (salt chamber) into one, making the overall structure more compact. In the cathode chamber, static electrolysis can produce a large amount of ultra-high pH value strong alkaline electrolyzed water reserve solution (pH ≥ 11). In the anode chamber, a large amount of high-concentration electrolyte salt can be added, combined with static electrolysis to ensure long-term use, without the need for frequent addition of electrolyte salt, and no wastewater is generated during electrolysis. The anode chamber stores a large amount of electrolyte salt required for electrolysis, and high-concentration salt water has been placed at the factory, which can meet the needs of long-term electrolysis, without the need for frequent replacement, and no wastewater is generated during electrolysis.

[0042] The outer shell is set in an H shape. By appropriately raising the middle electrolytic cell part, a precipitation protection area is formed at the bottom of the cathode chamber and the anode chamber to prevent scale, precipitated electrolyte solids and other solid impurities in the cathode chamber and the anode chamber from adhering to the diaphragm and electrode sheets and affecting the effect and life.

Claims

1. An exhaust structure, characterized in that include An exhaust connector (2) is axially hollow and has an exhaust port formed at the upper end; A sealing ring (4) is provided at the lower end portion of the outer side of the exhaust joint (2); and An exhaust cap (3) is detachably mounted on the outer side of the exhaust joint (2) and its lower end is sealed with the sealing ring (4). The inner wall of the upper end is sealed with the exhaust port of the exhaust joint (2). An exhaust hole (33) is provided on the outer side of the exhaust cap (3). The exhaust cap (3) can move up and down relative to the exhaust joint (2) when the sealing ring (4) is detached.

2. The exhaust structure according to claim 1, characterized in that The outer side of the lower end of the exhaust joint (2) is provided with an annular groove (21), and the sealing ring (4) is arranged on the outer side of the annular groove (21).

3. The exhaust structure according to claim 1, characterized in that The exhaust cap (3) comprises a sleeve portion (32) and a cover portion (31) located at the end of the sleeve portion (32), the exhaust hole (33) is opened on the sleeve portion (32), and the cover portion (31) can seal the exhaust port of the exhaust joint (2).

4. The exhaust structure according to claim 3, characterized in that The inner wall of the connection between the sleeve portion (32) and the sealing portion (31) has a first convex ring (34) extending radially inward, and the exhaust joint (2) has a second convex ring (22) extending radially outward near the exhaust port, and the first convex ring (34) cooperates with the second convex ring (22) to limit the exhaust cap (3) from detaching from the exhaust joint (2).

5. The exhaust structure according to claim 3, characterized in that The lower end of the sleeve portion (32) has an inner ring groove (35) which is sealingly matched with the sealing ring (4).

6. A water electrolysis module having any one of the exhaust structures of claims 1 to 5, characterized in that The water electrolysis module comprises a cathode chamber (11) and an anode chamber (12), and both the cathode chamber (11) and the anode chamber (12) are provided with an exhaust joint (2).

7. The water electrolysis module according to claim 6, characterized in that The water electrolysis module includes The housing (1) is H-shaped and comprises a cathode chamber (11), an anode chamber (12) and an electrolysis chamber (13) disposed transversely between the cathode chamber (11) and the anode chamber (12), wherein the cathode chamber (11) and the anode chamber (12) are disposed longitudinally; A diaphragm (53) is disposed in the electrolysis chamber (13) and divides the electrolysis chamber (13) into two parts; an anode plate (55) disposed in the electrolytic chamber (13) and close to the diaphragm (53) and away from the cathode chamber (11); and The cathode plate (51) is arranged in the electrolytic chamber (13) and close to the diaphragm (53) and away from the anode chamber (12).

8. The water electrolysis module according to claim 7, characterized in that A first insulating screen (54) is provided between the anode plate (55) and the diaphragm (53).

9. The water electrolysis module according to claim 7, characterized in that A second insulating screen (52) is provided between the cathode sheet (51) and the diaphragm (53).

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