A constant-proportional output valve for electrolytic cell

By designing a fixed-proportional output valve in the electrolytic cell, the outlet flow ratio of hydrogen and oxygen is achieved at 2:1, which solves the problem of pressure imbalance in the electrolytic water hydrogen production system, extends the diaphragm life and improves the system safety and efficiency.

CN119737493APending Publication Date: 2025-04-01SHENZHEN KYLN TECH CO LTD
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Patent Information

Application Number
CN202411634543.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

In the alkaline electrolytic water hydrogen production system, the pressure of the hydrogen and oxygen chamber is difficult to balance, resulting in unstable purity of hydrogen and oxygen, increasing production costs and exploding risk.

Method used

A fixed-proportion output valve for electrolytic cells was designed. Through two parallel pipelines and a fixed-proportion planetary transmission, the outlet flow ratio of hydrogen and oxygen was achieved at 2:1, ensuring pressure balance.

Benefits of technology

It effectively stabilizes the pressure in the electrolytic cell, extends the service life of the diaphragm, reduces the risk of gas leakage, and improves the safety and efficiency of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a proportional output valve for an electrolyzer, which relates to the field of electrolysis technology, and comprises two parallel pipelines, each of which is equipped with a valve body, a valve cover is equipped with a valve body on one side of the valve body, a mounting cavity is provided in the valve body, two relatively arranged vane-shaped rotors are equipped in the mounting cavity, the two vane-shaped rotors are meshed with each other, and the vane-shaped rotors in the two valve bodies are connected by a proportional planetary transmission. In the present invention, the rotation speed ratio of the two relatively vane-shaped rotors is controlled by a planetary transmission to be maintained at 2:1. This ingenious design directly corresponds to the outlet flow ratio of hydrogen and oxygen in the electrolyzer, which not only keeps the ratio of hydrogen and oxygen generated in the electrolyzer in an ideal state, but also effectively stabilizes the pressure between the diaphragms in the electrolyzer, and such stability greatly reduces the diaphragm wear caused by irregular pressure changes.
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Description

Technical Field

[0001] The invention relates to the technical field of electrolysis, in particular to a constant-proportional output valve for an electrolytic cell. Background Art

[0002] During the operation of the alkaline water electrolysis hydrogen production system, it is crucial to maintain the pressure balance of the hydrogen and oxygen chambers. This balance is the key factor to ensure that the purity of hydrogen and oxygen is always maintained within a safe range. Once the pressure of the hydrogen and oxygen chambers is seriously unbalanced, the purity of the gas on the lower pressure side will be affected, which will not only reduce the quality of the product, but also in extreme cases, may even cause the risk of explosion. The molecular formula of water is H2O, which means that during the electrolysis process, for every two volumes of hydrogen produced, one volume of oxygen will be produced. This inherent difference in the gas volume generation ratio makes it easy for the hydrogen chamber and the oxygen chamber to have pressure imbalance problems during operation. This is also a problem that we need to pay special attention to and solve when operating and managing the water electrolysis system.

[0003] At present, in order to ensure the stable operation of the system, the strategy of venting the gas on the side with higher pressure is usually adopted to achieve pressure balance. However, this also causes the pressure of the hydrogen chamber and the oxygen chamber to always maintain a dynamic equilibrium state with small fluctuations. This continuous and frequent pressure fluctuation will not only have an adverse effect on the diaphragm separating the hydrogen chamber and the oxygen chamber, shortening its service life, but also cause unnecessary loss of the main product hydrogen. This loss not only reduces production efficiency, but also increases production costs. Therefore, it is necessary to explore more effective pressure balance methods to reduce damage to the diaphragm and improve the utilization rate of hydrogen. Summary of the invention

[0004] In order to solve the problem of difficulty in balancing the pressure inside the electrolytic cell mentioned in the above background technology, the purpose of the present invention is to provide a constant ratio output valve for the electrolytic cell.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a constant-ratio output valve for an electrolytic cell, comprising two parallel pipelines, each of which is equipped with a valve body, a valve cover is equipped with a valve body on one side of the valve body, an installation cavity is provided in the valve body, two relatively arranged blade-shaped rotors are equipped with the installation cavity, the two blade-shaped rotors are meshed with each other, and the blade-shaped rotors in the two valve bodies are connected by a constant-ratio planetary transmission.

[0006] Preferably, connecting flanges are installed at both ends of the pipeline, a number of reinforcing ribs are installed on the pipeline, a dial is installed on the valve cover, the dial is a gas flow meter, and a sealing rubber base is installed on one side of the flange.

[0007] Preferably, a first engaging magnet is mounted on one of the blade-shaped rotors in each mounting cavity;

[0008] Both ends of the fixed ratio planetary transmission are provided with mounting grooves, in which second bite magnets are mounted, and the second bite magnets are fixedly matched with the corresponding transmission shaft of the fixed ratio planetary transmission;

[0009] The first engaging magnet and the second engaging magnet are arranged in a relative cooperation relationship. The first engaging magnet is embedded and fixed at one end of the corresponding blade-shaped rotor. The first engaging magnet and the second engaging magnet are both in the shape of the letter "X".

[0010] Preferably, the transmission ratio of the fixed ratio planetary transmission is a rated 2 to 1.

[0011] Preferably, a plurality of fixing seats are mounted on the valve body, and two corresponding fixing seats are fixedly connected via a locking screw.

[0012] Preferably, a positioning ring is fixedly installed on one side of the valve body, a sealing plate is inlaid and fixedly installed on one side of the valve body, the positioning ring and the sealing plate are arranged correspondingly, and the sealing plate is made of non-metallic material.

[0013] Preferably, a cooling pipe is installed at one end of each pipeline, a water cooling pipe is wound on the cooling pipe, corresponding spiral patterns are opened on the cooling pipe, and the water cooling pipe is wound on the spiral patterns.

[0014] Preferably, it also includes a shunt pipe, which is located above the cooling pipe. The shunt pipe is parallel to the cooling pipe, and one end of the shunt pipe is connected to the cooling pipe through a solenoid valve.

[0015] Preferably, the diverter pipe is connected to the water cooling pipe via a plurality of connecting pipes, and the connecting pipes are arranged in parallel.

[0016] Preferably, a spiral plate is installed in the cooling pipe, and one end of the spiral plate extends into the water cooling pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, when the first engaging magnet rotates, the second engaging magnet will also rotate accordingly. This linkage is achieved through a precise fixed-ratio planetary transmission, which controls the motion relationship between the two valve bodies. This design enables the blade-shaped rotor in one valve body to rotate one circle while the blade-shaped rotor in the other valve body can accurately rotate two circles. This 2:1 speed ratio is maintained by the planetary transmission, which ensures that the speeds of the two sets of blade-shaped rotors always remain at this ratio. This ingenious design directly corresponds to the outlet flow ratio of hydrogen and oxygen in the electrolyzer, that is, 2:1. Through the precise regulation of the planetary transmission, we have achieved strict control of the flow rate passing through the two valve bodies per unit time, thereby ensuring the stability of this ratio. This not only keeps the ratio of hydrogen and oxygen generated in the electrolyzer in an ideal state, but also effectively stabilizes the pressure between the diaphragms in the electrolyzer. Such stability greatly reduces the diaphragm wear caused by irregular pressure changes, thereby extending its service life and fundamentally eliminating various hidden dangers caused by frequent pressure fluctuations.

[0019] 2. The present invention connects the two vane-shaped rotors to the planetary transmission through magnetism, so that the sealing of the valve body is better, which effectively prevents the mixing of hydrogen and oxygen, reduces the risk of gas leakage, and ensures the safety and efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The basic structure diagram of a proportional output valve for an electrolytic cell of the present invention is shown in FIG.

[0021] Figure 2 A proportional output valve for an electrolytic cell according to the present invention Figure 1 Exploded diagram of the structure.

[0022] Figure 3 A proportional output valve for an electrolytic cell according to the present invention Figure 2 A partial view from another perspective.

[0023] Figure 4 A proportional output valve for an electrolytic cell according to the present invention Figure 3 Half section view of the main view.

[0024] Figure 5 The basic structural diagram of another structure of a fixed-proportional output valve for an electrolytic cell of the present invention is shown in FIG.

[0025] Figure 6 The present invention is a cross-sectional view of a cooling tube of a fixed-proportional output valve for an electrolytic cell.

[0026] Figure 7 A proportional output valve for an electrolytic cell according to the present invention Figure 5 Schematic diagram of the piping.

[0027] Figure 8 A proportional output valve for an electrolytic cell according to the present invention Figure 5 Another piping diagram.

[0028] In the figure: 101, valve body; 102, dial; 103, valve cover; 104, blade rotor; 105, installation cavity; 106, first bite magnet; 201, fixed ratio planetary transmission; 202, installation groove; 203, second bite magnet; 204, positioning ring; 205, sealing plate; 301, fixing seat; 302, locking screw; 401, pipeline; 402, connecting flange; 403, reinforcing rib; 501, cooling pipe; 502, water cooling pipe; 503, shunt pipe; 504, solenoid valve; 505, connecting pipe; 506, spiral plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1-Figure 4 As shown, the present embodiment provides a constant ratio output valve for an electrolytic cell, comprising two parallel pipelines 401, each pipeline 401 being equipped with a valve body 101, a valve cover 103 being equipped with a valve cover 103 on one side of the valve body 101, a mounting cavity 105 being provided in the valve body 101, two oppositely disposed vane rotors 104 being equipped with the mounting cavity 105, the two vane rotors 104 being meshed with each other, and the vane rotors 104 in the two valve bodies 101 being connected with each other via a constant ratio planetary transmission 201.

[0032] Both ends of the pipeline 401 are equipped with connecting flanges 402, a number of reinforcing ribs 403 are installed on the pipeline 401, a dial 102 is installed on the valve cover 103, and the dial 102 is a gas flow meter. A sealing rubber base is installed on one side of the connecting flange 402.

[0033] A first bite magnet 106 is mounted on one of the blade rotors 104 in each mounting cavity 105. Mounting slots 202 are provided at both ends of the fixed ratio planetary transmission 201. The transmission ratio of the fixed ratio planetary transmission 201 is rated at 2 to 1. A second bite magnet 203 is mounted in the mounting slot 202. The second bite magnet 203 is fixedly matched with the corresponding transmission shaft of the fixed ratio planetary transmission 201. The first bite magnet 106 is arranged to be matched with the second bite magnet 203. The first bite magnet 106 is embedded and fixed in the corresponding At one end of the blade rotor 104, the first engaging magnet 106 and the second engaging magnet 203 are both in the shape of the letter "X", and the center point of the letter "X" coincides with the axis of the corresponding blade rotor. The two blade rotors 104 arranged in coordination form the structure of the currently commonly used Roots flowmeter (also known as an impeller flowmeter), which is widely used in the measurement of gas flow. The working principle of the Roots flowmeter is to use the inlet and outlet pressure difference to drive the blade rotor 104 to rotate, convert the fluid into the product of a single known volume, and measure the total amount of gas passing through according to the number of times the metering chamber is active. This metering method enables the Roots flowmeter to have high accuracy and stability during the measurement process. In this embodiment, the corresponding blade rotors 104 in the two valve bodies 101 are connected through a planetary transmission, and the speed output of the two ends of the planetary transmission is controlled to be 2:1, thereby adapting to the volume of hydrogen and oxygen produced in the electrolytic cell electrolysis hydrogen production with a ratio of 2:1, so that the pressure on both sides of the diaphragm in the electrolytic cell is more balanced, and the service life of the diaphragm is extended.

[0034] A plurality of fixing seats 301 are mounted on the valve body 101, and two corresponding fixing seats 301 are fixedly connected by locking screws 302. A positioning ring 204 is fixedly mounted on one side of the valve body 101, and a sealing plate 205 is inlaid and fixedly mounted on one side of the valve body 101. The positioning ring 204 and the sealing plate 205 are arranged correspondingly. The sealing plate 205 is made of non-metallic material. In this embodiment, the sealing plate 205 can be made of tempered glass, so that when the device is being repaired, the interior of the valve body 101 can be observed by removing the planetary transmission, and the situation inside the valve body 101 can be discovered in time, so that the information inside the valve body 101 is more transparent and the maintenance time is reduced.

[0035] It should be noted that, in the present embodiment, the first engaging magnet 106 and the second engaging magnet 203 are cleverly arranged on both sides of the sealing plate 205. When the first engaging magnet 106 rotates, the second engaging magnet 203 will also rotate accordingly. This linkage is achieved through a precise fixed-ratio planetary transmission 201, which controls the motion relationship between the two valve bodies 101. This design enables the vane rotor 104 in one valve body 101 to rotate one circle while the vane rotor 104 in the other valve body 101 can accurately rotate two circles. This 2:1 speed ratio is maintained by the planetary transmission, which ensures that the speeds of the two sets of vane rotors 104 always remain at this ratio. This ingenious design directly corresponds to the outlet flow ratio of hydrogen and oxygen in the electrolyzer, that is, 2:1. Through precise regulation, we have achieved strict control over the flow rate passing through the two valve bodies 101 per unit time, thereby ensuring the stability of this ratio. This not only ensures that the ratio of hydrogen and oxygen produced in the electrolyzer always remains in an ideal state, but also effectively stabilizes the pressure between the diaphragms in the electrolyzer. Such stability greatly reduces the diaphragm wear caused by irregular pressure changes, thereby extending its service life and fundamentally eliminating various hidden dangers caused by frequent pressure fluctuations. It is worth mentioning that this embodiment does not adopt the method of directly connecting the two blade rotors 104 through a planetary transmission. Direct connection may cause sealing problems, which may not only cause the mixing of hydrogen and oxygen, but also there is a risk of gas leakage. Our design completely avoids these potential problems and ensures the safety and efficiency of the system.

[0036] Example 2

[0037] like Figure 1-Figure 7 As shown, the present embodiment provides a constant ratio output valve for an electrolytic cell, comprising two parallel pipelines 401, each pipeline 401 being equipped with a valve body 101, a valve cover 103 being equipped with a valve cover 103 on one side of the valve body 101, a mounting cavity 105 being provided in the valve body 101, two oppositely disposed vane rotors 104 being equipped with the mounting cavity 105, the two vane rotors 104 being meshed with each other, and the vane rotors 104 in the two valve bodies 101 being connected with each other via a constant ratio planetary transmission 201.

[0038] Both ends of the pipeline 401 are equipped with connecting flanges 402, a number of reinforcing ribs 403 are installed on the pipeline 401, a dial 102 is installed on the valve cover 103, and the dial 102 is a gas flow meter. A sealing rubber base is installed on one side of the connecting flange 402.

[0039] A first bite magnet 106 is mounted on one of the blade rotors 104 in each mounting cavity 105. Mounting slots 202 are provided at both ends of the fixed ratio planetary transmission 201. The transmission ratio of the fixed ratio planetary transmission 201 is rated at 2 to 1. A second bite magnet 203 is mounted in the mounting slot 202. The second bite magnet 203 is fixedly matched with the corresponding transmission shaft of the fixed ratio planetary transmission 201. The first bite magnet 106 is arranged to be matched with the second bite magnet 203. The first bite magnet 106 is embedded and fixed in the corresponding At one end of the blade rotor 104, the first engaging magnet 106 and the second engaging magnet 203 are both in the shape of the letter "X", and the center point of the letter "X" coincides with the axis of the corresponding blade rotor. The two blade rotors 104 arranged in coordination form the structure of the currently commonly used Roots flowmeter (also known as an impeller flowmeter), which is widely used in the measurement of gas flow. The working principle of the Roots flowmeter is to use the inlet and outlet pressure difference to drive the blade rotor 104 to rotate, convert the fluid into the product of a single known volume, and measure the total amount of gas passing through according to the number of times the metering chamber is active. This metering method enables the Roots flowmeter to have high accuracy and stability during the measurement process. In this embodiment, the corresponding blade rotors 104 in the two valve bodies 101 are connected through a planetary transmission, and the speed output of the two ends of the planetary transmission is controlled to be 2:1, thereby adapting to the volume of hydrogen and oxygen produced in the electrolytic cell electrolysis hydrogen production with a ratio of 2:1, so that the pressure on both sides of the diaphragm in the electrolytic cell is more balanced, and the service life of the diaphragm is extended.

[0040] A plurality of fixing seats 301 are mounted on the valve body 101, and two corresponding fixing seats 301 are fixedly connected by locking screws 302. A positioning ring 204 is fixedly mounted on one side of the valve body 101, and a sealing plate 205 is inlaid and fixedly mounted on one side of the valve body 101. The positioning ring 204 and the sealing plate 205 are arranged correspondingly. The sealing plate 205 is made of non-metallic material. In this embodiment, the sealing plate 205 can be made of tempered glass, so that when the device is being repaired, the interior of the valve body 101 can be observed by removing the planetary transmission, and the situation inside the valve body 101 can be discovered in time, so that the information inside the valve body 101 is more transparent and the maintenance time is reduced.

[0041] A cooling tube 501 is installed at one end of each pipeline 401, a water cooling tube 502 is wound on the cooling tube 501, a corresponding spiral pattern is provided on the cooling tube 501, the water cooling tube 502 is wound on the spiral pattern, a spiral plate 506 is installed in the cooling tube 501, one end of the spiral plate 506 extends into the water cooling tube 502, when the gas passes through the cooling tube 501, the gas forms a spiral under the guidance of the spiral plate 506, thereby increasing the contact time and area between the gas and the spiral plate 506, so that the heat can be better transferred to the cooling water in the water cooling tube 502, thereby reducing the temperature of the gas, and making the volume ratio between oxygen and hydrogen more stable.

[0042] The shunt pipe 503 is located above the cooling pipe 501, and the shunt pipe 503 is parallel to the cooling pipe 501. One end of the shunt pipe 503 is connected to the cooling pipe 501 through the solenoid valve 504. The shunt pipe 503 is connected to the water cooling pipe 502 through a plurality of connecting pipes 505. The connecting pipes 505 are arranged in parallel. Figure 7 , ① in the figure includes the emergency avoidance device in this embodiment, and the emergency avoidance device includes a shunt pipe 503, a solenoid valve 504 and a connecting pipe 505, ② in the figure is the water cooling pipe 502 in this embodiment, ③ in the figure includes the exhaust gas collection device in this embodiment, and the exhaust gas collection device includes a tank body and two valves, and ④ in the figure is the water tank in this embodiment.

[0043] In this embodiment, if the pressure in the electrolytic cell fluctuates widely, a fault may occur in the electrolytic cell. On the one hand, when the electrolytic cell fails, the purity of the gas discharged from the exhaust port is insufficient, and directly discharging it into the corresponding gas tank may cause the gas concentration to decrease. On the other hand, the damage to the electrolytic cell may produce a large amount of harmful gas. At this time, it is necessary to urgently exhaust the gas in the electrolytic cell. Figure 7 In part ①, the solenoid valve 504 is controlled to open, so that the exhaust gas does not pass through the valve body 101 but enters the water cooling pipe 502 through the diverter pipe 503. On the one hand, the harmful substances in the exhaust gas can be absorbed once by the cooling water, and on the other hand, the exhaust gas can be prevented from continuing to enter the valve body 101 and causing the inside of the valve body 101 to be blocked by other substances.

[0044] Example 3

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8As shown, the present embodiment provides a constant ratio output valve for an electrolytic cell, comprising two parallel pipelines 401, each pipeline 401 being equipped with a valve body 101, a valve cover 103 being equipped with a valve cover 103 on one side of the valve body 101, a mounting cavity 105 being provided in the valve body 101, two oppositely disposed vane rotors 104 being equipped with the mounting cavity 105, the two vane rotors 104 being meshed with each other, and the vane rotors 104 in the two valve bodies 101 being connected with each other via a constant ratio planetary transmission 201.

[0046] Both ends of the pipeline 401 are equipped with connecting flanges 402, a number of reinforcing ribs 403 are installed on the pipeline 401, a dial 102 is installed on the valve cover 103, and the dial 102 is a gas flow meter. A sealing rubber base is installed on one side of the connecting flange 402.

[0047] A first bite magnet 106 is mounted on one of the blade rotors 104 in each mounting cavity 105. Mounting slots 202 are provided at both ends of the fixed ratio planetary transmission 201. The transmission ratio of the fixed ratio planetary transmission 201 is rated at 2 to 1. A second bite magnet 203 is mounted in the mounting slot 202. The second bite magnet 203 is fixedly matched with the corresponding transmission shaft of the fixed ratio planetary transmission 201. The first bite magnet 106 is arranged to be matched with the second bite magnet 203. The first bite magnet 106 is embedded and fixed in the corresponding At one end of the blade rotor 104, the first engaging magnet 106 and the second engaging magnet 203 are both in the shape of the letter "X", and the center point of the letter "X" coincides with the axis of the corresponding blade rotor. The two blade rotors 104 arranged in coordination form the structure of the currently commonly used Roots flowmeter (also known as an impeller flowmeter), which is widely used in the measurement of gas flow. The working principle of the Roots flowmeter is to use the inlet and outlet pressure difference to drive the blade rotor 104 to rotate, convert the fluid into the product of a single known volume, and measure the total amount of gas passing through according to the number of times the metering chamber is active. This metering method enables the Roots flowmeter to have high accuracy and stability during the measurement process. In this embodiment, the corresponding blade rotors 104 in the two valve bodies 101 are connected through a planetary transmission, and the speed output of the two ends of the planetary transmission is controlled to be 2:1, thereby adapting to the volume of hydrogen and oxygen produced in the electrolytic cell electrolysis hydrogen production with a ratio of 2:1, so that the pressure on both sides of the diaphragm in the electrolytic cell is more balanced, and the service life of the diaphragm is extended.

[0048] A plurality of fixing seats 301 are mounted on the valve body 101, and two corresponding fixing seats 301 are fixedly connected by locking screws 302. A positioning ring 204 is fixedly mounted on one side of the valve body 101, and a sealing plate 205 is inlaid and fixedly mounted on one side of the valve body 101. The positioning ring 204 and the sealing plate 205 are arranged correspondingly. The sealing plate 205 is made of non-metallic material. In this embodiment, the sealing plate 205 can be made of tempered glass, so that when the device is being repaired, the interior of the valve body 101 can be observed by removing the planetary transmission, and the situation inside the valve body 101 can be discovered in time, so that the information inside the valve body 101 is more transparent and the maintenance time is reduced.

[0049] A cooling tube 501 is installed at one end of each pipeline 401, a water cooling tube 502 is wound on the cooling tube 501, a corresponding spiral pattern is provided on the cooling tube 501, the water cooling tube 502 is wound on the spiral pattern, a spiral plate 506 is installed in the cooling tube 501, one end of the spiral plate 506 extends into the water cooling tube 502, when the gas passes through the cooling tube 501, the gas forms a spiral under the guidance of the spiral plate 506, thereby increasing the contact time and area between the gas and the spiral plate 506, so that the heat can be better transferred to the cooling water in the water cooling tube 502, thereby reducing the temperature of the gas, and making the volume ratio between oxygen and hydrogen more stable.

[0050] The shunt pipe 503 is located above the cooling pipe 501, and the shunt pipe 503 is parallel to the cooling pipe 501. One end of the shunt pipe 503 is connected to the cooling pipe 501 through the solenoid valve 504. The shunt pipe 503 is connected to the water cooling pipe 502 through a plurality of connecting pipes 505. The connecting pipes 505 are arranged in parallel. Figure 8 , ① in the figure includes the emergency avoidance device in this embodiment, the emergency avoidance device includes a shunt pipe 503, a solenoid valve 504 and a connecting pipe 505, ② in the figure is the water cooling pipe 502 in this embodiment, ③ in the figure is the pressure relief port in this embodiment, ④ in the figure is the water tank in this embodiment, and ⑤ in the figure is the exhaust gas collection tank in this embodiment.

[0051] In this embodiment, if the pressure in the electrolytic cell fluctuates over a large range, a fault may occur in the electrolytic cell. On the one hand, when the electrolytic cell fails, the purity of the gas discharged from the exhaust port is insufficient, and directly discharging it into the corresponding gas tank may cause the gas concentration to decrease. On the other hand, the damage to the electrolytic cell may produce a large amount of harmful gas. At this time, the waste gas in the electrolytic cell needs to be urgently exhausted. Figure 8Part ⑤ in the figure controls the solenoid valve 504 to open, so that the exhaust gas does not pass through the valve body 101 but enters the water cooling tube 502 through the shunt pipe 503. On the one hand, the harmful substances in the exhaust gas can be absorbed once by the cooling water, and on the other hand, the exhaust gas can be prevented from continuing to enter the valve body 101 and causing the inside of the valve body 101 to be blocked by other substances. What is different from Example 2 is that in this embodiment, when the exhaust gas does not completely pass through the solenoid valve 504, it will be absorbed again by the exhaust gas collecting pipe after passing through the cooling tube 501.

[0052] It should be further noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant ratio output valve for an electrolytic cell, characterized in that: The invention comprises two parallel pipelines (401), each of which is equipped with a valve body (101), one side of which is equipped with a valve cover (103), a mounting cavity (105) is provided in the valve body (101), two blade-shaped rotors (104) arranged opposite to each other are mounted in the mounting cavity (105), the two blade-shaped rotors (104) are meshed with each other, and the blade-shaped rotors (104) in the two valve bodies (101) are connected via a fixed-ratio planetary transmission (201).

2. A constant-proportional output valve for an electrolytic cell according to claim 1, characterized in that: Both ends of the pipeline (401) are fitted with connecting flanges (402), a plurality of reinforcing ribs (403) are fitted on the pipeline (401), a dial (102) is fitted on the valve cover (103), the dial (102) is a gas flow meter, and a sealing rubber base is fitted on one side of the flange (402).

3. A constant-proportional output valve for an electrolytic cell according to claim 1, characterized in that: A first engaging magnet (106) is mounted on one of the blade-shaped rotors (104) in each mounting cavity (105); Both ends of the fixed-ratio planetary transmission (201) are provided with mounting grooves (202), and second engaging magnets (203) are mounted in the mounting grooves (202), and the second engaging magnets (203) are fixedly matched with the corresponding transmission shaft of the fixed-ratio planetary transmission (201); The first engaging magnet (106) and the second engaging magnet (203) are arranged in a relative cooperation relationship. The first engaging magnet (106) is embedded and fixed at one end of the corresponding blade-shaped rotor (104). The first engaging magnet (106) and the second engaging magnet (203) are both in the shape of the letter "X".

4. A constant-proportional output valve for an electrolytic cell according to claim 1, characterized in that: The transmission ratio of the fixed ratio planetary transmission (201) is rated at 2 to 1.

5. A constant-proportional output valve for an electrolytic cell according to claim 4, characterized in that: A plurality of fixing seats (301) are mounted on the valve body (101), and two corresponding fixing seats (301) are fixedly connected via locking screws (302).

6. A constant-proportional output valve for an electrolytic cell according to claim 1, characterized in that: A positioning ring (204) is fixedly mounted on one side of the valve body (101), and a sealing plate (205) is inlaid and fixedly mounted on one side of the valve body (101); the positioning ring (204) and the sealing plate (205) are arranged correspondingly, and the sealing plate (205) is made of non-metallic material.

7. A constant-proportional output valve for an electrolytic cell according to claim 1, characterized in that: A cooling pipe (501) is installed at one end of each pipeline (401), a water cooling pipe (502) is wound around the cooling pipe (501), a corresponding spiral pattern is provided on the cooling pipe (501), and the water cooling pipe (502) is wound around the spiral pattern.

8. A constant-proportional output valve for an electrolytic cell according to claim 7, characterized in that: It also includes a shunt pipe (503), which is located above the cooling pipe (501), and the shunt pipe (503) is parallel to the cooling pipe (501), and one end of the shunt pipe (503) is connected to the cooling pipe (501) through a solenoid valve (504).

9. A constant-proportional output valve for an electrolytic cell according to claim 8, characterized in that: The flow distribution pipe (503) is connected to the water cooling pipe (502) via a plurality of connecting pipes (505), and the connecting pipes (505) are arranged in parallel.

10. A constant-proportional output valve for an electrolytic cell according to claim 9, characterized in that: A spiral plate (506) is installed in the cooling tube (501), and one end of the spiral plate (506) extends into the water cooling tube (502).