Hydrogen separation device

Abstract

The utility model relates to the technical field of hydrogen electrolysis, in particular to a hydrogen separation device. The hydrogen separation device comprises a main body, a cooling assembly, a temperature sensor and an exhaust assembly. A separation cavity and a cooling cavity which are independent from each other and adjacent to each other are formed in the main body, an inlet pipeline and an outlet pipeline which are communicated with the separation cavity and arranged at an interval are arranged at the bottom of the main body, and the inlet pipeline is used for introducing a gas-liquid mixture into the separation cavity; the gas-liquid mixture comprises hydrogen and an electrolyte; the cooling assembly comprises a water inlet pipe, a water outlet pipe and a first liquid flow adjusting valve. The water inlet pipe and the water outlet pipe are arranged on the two sides of the main body respectively and communicate with the cooling cavity. The first liquid flow regulating valve is arranged on the water inlet pipe; the temperature sensor is inserted into the separation cavity so as to detect the temperature of the electrolyte in the separation cavity; and the exhaust assembly is arranged at the top of the main body and is communicated with the separation cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen electrolysis, in particular to a hydrogen separation device. Background Art

[0002] In the process of hydrogen electrolysis, the mixture of hydrogen and electrolyte needs to be separated into gas and liquid, and in order to improve the electrolysis efficiency, the temperature of the electrolyte also needs to be controlled, but the hydrogen separation device in the related art often lacks temperature control function. Therefore, it is of great practical value to develop a hydrogen separation device that can separate hydrogen from electrolyte and control the temperature of electrolyte. Utility Model Content

[0003] The present application provides a hydrogen separation device, which solves the technical problem that hydrogen separation devices in related technologies often lack temperature control function.

[0004] The present application provides a hydrogen separation device for separating hydrogen and electrolyte, comprising:

[0005] The main body has a separation chamber and a cooling chamber which are independent and closely arranged inside, and the bottom of the main body has an inlet pipe and an outlet pipe which are connected to the separation chamber and are arranged at intervals, and the inlet pipe is used to pass a gas-liquid mixture into the separation chamber; the gas-liquid mixture includes hydrogen and electrolyte;

[0006] A cooling assembly, comprising a water inlet pipe, a drain pipe and a first liquid flow regulating valve, wherein the water inlet pipe and the drain pipe are respectively arranged on both sides of the main body and are in communication with the cooling cavity, the water inlet pipe is used to pass cooling water into the cooling cavity to cool the gas-liquid mixture in the separation cavity so that the hydrogen and the electrolyte are separated; the outlet pipe is used to discharge the separated electrolyte, and the drain pipe is used to discharge the cooling water; the first liquid flow regulating valve is arranged on the water inlet pipe;

[0007] A temperature sensor, inserted in the separation chamber to detect the temperature of the electrolyte in the separation chamber;

[0008] An exhaust component is arranged on the top of the main body and communicated with the separation chamber, and is used for exhausting the separated hydrogen.

[0009] In some embodiments, the first liquid flow regulating valve is an electrical proportional valve, and the first liquid flow regulating valve is connected to the temperature sensor signal.

[0010] In some embodiments, the cooling assembly also includes a first main partition, a second main partition and a plurality of cooling pipes, the first main partition and the second main partition are arranged inside the main body and divide the inside of the main body into a first chamber, a second chamber and a third chamber in sequence, the water inlet pipe is connected to the first chamber, the water outlet pipe is connected to the third chamber, a plurality of cooling pipes are arranged in the second chamber, and one end of each of the cooling pipes is connected to the first chamber, and the other end is connected to the second chamber; the first chamber, the third chamber and the tube cavities of the plurality of cooling pipes form a cooling chamber; in the second chamber, the part other than the plurality of cooling pipes forms the separation chamber.

[0011] In some embodiments, the width of the second chamber is greater than the widths of the first chamber and the third chamber.

[0012] In some embodiments, the cooling assembly further includes a plurality of sub-partitions, which are spaced apart and staggered in the second chamber, each of the sub-partitions is connected to the inner wall of the second chamber, and each of the cooling pipes is passed through the sub-partitions.

[0013] In some embodiments, the exhaust assembly includes an exhaust pipe, a pressure sensor and a gas flow regulating valve, one end of the exhaust pipe is arranged at the top of the main body and is connected to the separation chamber, the gas flow regulating valve is arranged at the other end of the exhaust pipe, and the pressure sensor is used to detect the pressure of hydrogen discharged from the exhaust pipe.

[0014] In some embodiments, the gas flow regulating valve is an electrical proportional valve, and the gas flow regulating valve is connected to the pressure sensor signal.

[0015] In some embodiments, the device further includes a liquid level controller and a second liquid flow regulating valve, wherein one end of the liquid level controller is connected to the separation chamber and the other end is connected to the upper portion of the exhaust pipe; the second liquid flow regulating valve is disposed in the outlet pipe.

[0016] In some embodiments, the second liquid flow regulating valve is an electrical proportional valve, and the second liquid flow regulating valve is connected to the liquid level controller signal.

[0017] In some embodiments, the exhaust assembly further includes a foam breaker, and the foam breaker is disposed in the exhaust pipe.

[0018] The beneficial effects of this application are as follows:

[0019] The present application provides a hydrogen separation device. Since a first liquid flow regulating valve is arranged on a water inlet pipe to control the flow of cooling water, and a temperature sensor is inserted in a separation chamber to detect the temperature of an electrolyte in the separation chamber, the flow of cooling water can be adjusted through the first liquid flow regulating valve according to the temperature value measured by the temperature sensor, thereby adjusting the temperature of the electrolyte, so that the temperature of the electrolyte is maintained within a specific range to ensure the electrolysis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model.

[0021] Figure 1 This is a schematic diagram of the structure of the hydrogen separation device provided in an embodiment of the present application.

[0022] Figure 2 for Figure 1 sectional view of .

[0023] Description of reference numerals:

[0024] 1-hydrogen separation device, 100-main body, 110-separation chamber, 120-cooling chamber, 130-inlet pipe, 140-outlet pipe, 200-cooling assembly, 210-water inlet pipe, 220-drain pipe, 230-first liquid flow regulating valve, 240-first main partition, 250-second main partition, 251-first chamber, 252-second chamber, 253-third chamber, 260-cooling pipe, 270-sub-partition, 300-temperature sensor, 400-exhaust assembly, 410-exhaust pipe, 411-foam breaker, 420-gas flow regulating valve, 500-liquid level controller, 510-second liquid flow regulating valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] Figure 1 This is a schematic diagram of the structure of the hydrogen separation device provided in the embodiment of the present application. Figure 2 for Figure 1 The cross-sectional view of Figure 1 and Figure 2 The embodiment of the present application provides a hydrogen separation device 1 for separating a gas-liquid mixture of hydrogen and electrolyte, and can adjust the temperature of the electrolyte during the separation process so that the temperature of the electrolyte is maintained within a specific range to ensure electrolysis efficiency. The hydrogen separation device 1 includes a main body 100, a cooling component 200, a temperature sensor 300 and an exhaust component 400.

[0030] The interior of the main body 100 has a separation chamber 110 and a cooling chamber 120 that are independent of each other and arranged closely together, that is, the separation chamber 110 and the cooling chamber 120 are not connected to each other, and the gas-liquid mixture is separated in the separation chamber 110. The bottom of the main body 100 has an inlet pipe 130 and an outlet pipe 140 that are connected to the separation chamber 110, and the inlet pipe 130 and the outlet pipe 140 are arranged at intervals. The inlet pipe 130 is used to pass the gas-liquid mixture into the separation chamber 110, and the outlet pipe 140 is used to discharge the separated electrolyte, and the electrolyte returns to the electrolysis equipment after being discharged. The exhaust component 400 is arranged at the top of the main body 100 and is connected to the separation chamber 110, and is used to discharge the separated hydrogen, and the hydrogen enters the next process after being discharged.

[0031] The cooling assembly 200 includes a water inlet pipe 210, a drain pipe 220 and a first liquid flow regulating valve 230. The water inlet pipe 210 and the drain pipe 220 are respectively arranged on both sides of the main body 100 and communicated with the cooling chamber 120. The water inlet pipe 210 is used to pass cooling water into the cooling chamber 120. Since the separation chamber 110 and the cooling chamber 120 are arranged adjacent to each other, the cooling water can cool the gas-liquid mixture in the separation chamber 110, and the hydrogen and the electrolyte are separated under the cooling effect. The drain pipe 220 is used to discharge the cooling water after use. The first liquid flow regulating valve 230 is arranged on the water inlet pipe 210 to control the flow of cooling water. Of course, the larger the flow of cooling water, the stronger the cooling effect, and the lower the temperature of the electrolyte in the separation chamber 110; the smaller the flow of cooling water, the weaker the cooling effect, and the higher the temperature of the electrolyte in the separation chamber 110.

[0032] The temperature sensor 300 is inserted into the separation chamber 110 to detect the temperature of the electrolyte in the separation chamber 110. Therefore, the flow rate of cooling water can be adjusted through the first liquid flow regulating valve 230 according to the temperature value measured by the temperature sensor 300, thereby adjusting the temperature of the electrolyte so that the temperature of the electrolyte is maintained within a specific range to ensure the electrolysis efficiency. Specifically, the temperature control range of the electrolyte is 70°C to 90°C.

[0033] In some embodiments, in order to realize automatic control of the electrolyte temperature, the first liquid flow regulating valve 230 may be an electrical proportional valve, and the first liquid flow regulating valve 230 is connected to the temperature sensor 300 by signal. When the temperature sensor 300 detects that the electrolyte temperature is lower than the preset temperature range, the temperature signal is sent to the first liquid flow regulating valve 230, and the first liquid flow regulating valve 230 automatically adjusts the opening to reduce the flow of cooling water, so that the electrolyte temperature returns to a specific range; similarly, when the temperature sensor 300 detects that the electrolyte temperature is higher than the preset temperature range, the temperature signal is sent to the first liquid flow regulating valve 230, and the first liquid flow regulating valve 230 automatically adjusts the opening to increase the flow of cooling water, so that the electrolyte temperature returns to a specific range.

[0034] In some embodiments, the cooling assembly 200 further includes a first main partition 240, a second main partition 250, and a plurality of cooling pipes 260. The first main partition 240 and the second main partition 250 are disposed inside the main body 100 and divide the inside of the main body 100 into a first chamber 251, a second chamber 252, and a third chamber 253 in sequence, that is, the first chamber 251 and the third chamber 253 are disposed on both sides of the second chamber 252. The water inlet pipe 210 is in communication with the first chamber 251, the water outlet pipe is in communication with the third chamber 253, and a plurality of cooling pipes 260 are disposed in the second chamber 252, and one end of each cooling pipe 260 is in communication with the first chamber 251, and the other end is in communication with the second chamber 252. Obviously, a plurality of through holes in communication with the cooling pipes 260 are disposed on the first main partition 240 and the second main partition 250. The first chamber 251 , the third chamber 253 and the lumens of the plurality of cooling tubes 260 form a cooling chamber 120 , and the portion of the second chamber 252 other than the plurality of cooling tubes 260 forms a separation chamber 110 .

[0035] That is, the water inlet pipe 210 first passes the cooling water into the first chamber 251. After the cooling water is gathered in the first chamber 251, it enters the second chamber 252 through multiple cooling pipes 260, and cools the gas-liquid mixture in the separation chamber 110 to separate the hydrogen and electrolyte in the gas-liquid mixture. After completing the heat exchange, the cooling liquid flows into the third chamber 253 and is finally discharged from the water outlet pipe.

[0036] The plurality of cooling pipes 260 may be disposed horizontally or inclined, and there is no limitation thereto.

[0037] In some embodiments, since the main place for heat exchange between cooling water and the gas-liquid mixture is in the second chamber 252, the width of the second chamber 252 may be greater than the width of the first chamber 251 and the third chamber 253, so that the second chamber 252 can accommodate a larger amount of gas-liquid mixture, thereby improving the decomposition efficiency.

[0038] In some embodiments, since the cooling tube 260 has a certain length, in order to stably install the plurality of cooling tubes 260 between the first main partition 240 and the second main partition 250, the cooling assembly 200 further includes a plurality of sub-partitions 270, each of which is connected to the inner wall of the second chamber 252, and each of which is penetrated by the sub-partition 270, so that the sub-partition 270 provides an installation base for the cooling tube 260, making the cooling tube 260 more stable. The plurality of sub-partitions 270 are arranged in the second chamber 252 at intervals and in a staggered manner to ensure that the interior of the separation chamber 110 is completely circulated, so that the separated electrolyte can be completely discharged through the outlet, and the separated hydrogen can be completely discharged through the outlet, so as to avoid the sub-partition 270 dividing the separation chamber 110 into a closed chamber.

[0039] In order to ensure that each cooling pipe 260 can be passed through at least one sub-partition 270, the projection of the multiple sub-partitions 270 on the first main partition 240 / the second main partition 250 must completely cover the projection of the multiple cooling pipes 260 as a whole on the first main partition 240 / the second main partition 250. Of course, the projections of the multiple sub-partitions 270 on the first main partition 240 / the second main partition 250 may partially overlap or may not overlap at all, and there is no restriction on this.

[0040] In some embodiments, after gas-liquid separation, the output pressure of hydrogen also needs to be controlled to ensure that the pressure of hydrogen and oxygen in the electrolysis device is balanced and to prevent the separation membrane from falling off. Therefore, the exhaust assembly 400 includes an exhaust pipe 410, a pressure sensor and a gas flow regulating valve 420. One end of the exhaust pipe 410 is arranged at the top of the main body 100 and communicates with the separation chamber 110. The gas flow regulating valve 420 is arranged at the other end of the exhaust pipe 410. The pressure sensor is used to detect the pressure of hydrogen discharged from the exhaust pipe 410. When the pressure sensor detects that the pressure of hydrogen discharged from the exhaust pipe 410 is too high or too low, the gas flow regulating valve 420 needs to be adjusted to adjust the pressure of hydrogen. In order to improve the exhaust efficiency of hydrogen, more than one exhaust assembly 400 can be provided, and there is no limitation on this.

[0041] In some embodiments, in order to achieve automatic regulation of hydrogen pressure, the gas flow regulating valve 420 may be an electrical proportional valve, and the gas flow regulating valve 420 is connected to the pressure sensor signal. When the pressure sensor detects that the hydrogen pressure is lower than the preset pressure range, the pressure signal is sent to the gas flow regulating valve 420, and the gas flow regulating valve 420 automatically adjusts the hydrogen pressure, so that the hydrogen pressure returns to a specific range; similarly, when the pressure sensor detects that the hydrogen pressure is higher than the preset pressure range, the pressure signal is sent to the gas flow regulating valve 420, and the gas flow regulating valve 420 automatically adjusts the hydrogen pressure, so that the hydrogen pressure returns to a specific range.

[0042] In some embodiments, since the discharge pipe is used as a channel for discharging hydrogen, in order to avoid excessive electrolyte in the main body 100, the electrolyte overflows from the separation chamber 110 to the upper part of the discharge pipe, causing the hydrogen to carry too much electrolyte during the discharge process, the device also includes a liquid level controller 500 and a second liquid flow regulating valve 510, one end of the liquid level controller 500 is connected to the separation chamber 110, and the other end is connected to the upper part of the exhaust pipe 410; the second liquid flow regulating valve 510 is arranged in the outlet pipe 140.

[0043] The liquid level of the electrolyte can be obtained through the liquid level controller 500. When the liquid level of the electrolyte is too high, the second liquid flow regulating valve 510 is adjusted to increase the discharge amount of the electrolyte, thereby lowering the liquid level of the electrolyte and reducing the amount of electrolyte carried by hydrogen during the discharge process.

[0044] In some embodiments, in order to realize automatic control of the electrolyte level, the second liquid flow regulating valve 510 may be an electrical proportional valve, and the second liquid flow regulating valve 510 is signal-connected to the liquid level controller 500. When the liquid level controller 500 detects that the liquid level of the electrolyte is higher than a preset liquid level value, the liquid level signal is sent to the second liquid flow regulating valve 510, and the second liquid flow regulating valve 510 automatically increases the discharge amount of the electrolyte, thereby reducing the electrolyte level.

[0045] In some embodiments, the exhaust assembly 400 further includes a foam breaker 411, which is disposed in the exhaust pipe 410 to break up foam generated during gas-liquid separation to ensure that the discharged hydrogen is purer.

[0046] The present application provides a hydrogen separation device 1. Since the first liquid flow regulating valve 230 is arranged on the water inlet pipe 210 to control the flow of cooling water, and the temperature sensor 300 is inserted in the separation chamber 110 to detect the temperature of the electrolyte in the separation chamber 110, the flow of cooling water can be adjusted through the first liquid flow regulating valve 230 according to the temperature value measured by the temperature sensor 300, thereby adjusting the temperature of the electrolyte, so that the temperature of the electrolyte is maintained within a specific range to ensure the electrolysis efficiency.

[0047] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A hydrogen separation device for separating hydrogen and electrolyte, characterized in that: include: The main body has a separation chamber and a cooling chamber which are independent and closely arranged inside, and the bottom of the main body has an inlet pipe and an outlet pipe which are connected to the separation chamber and are arranged at intervals, and the inlet pipe is used to pass a gas-liquid mixture into the separation chamber; the gas-liquid mixture includes hydrogen and electrolyte; A cooling assembly, comprising a water inlet pipe, a drain pipe and a first liquid flow regulating valve, wherein the water inlet pipe and the drain pipe are respectively arranged on both sides of the main body and are in communication with the cooling cavity, the water inlet pipe is used to pass cooling water into the cooling cavity to cool the gas-liquid mixture in the separation cavity so that the hydrogen and the electrolyte are separated; the outlet pipe is used to discharge the separated electrolyte, and the drain pipe is used to discharge the cooling water; The first liquid flow regulating valve is arranged on the water inlet pipe; A temperature sensor, inserted in the separation chamber to detect the temperature of the electrolyte in the separation chamber; An exhaust component is arranged on the top of the main body and communicated with the separation chamber, and is used for exhausting the separated hydrogen.

2. The hydrogen separation device according to claim 1, characterized in that: The first liquid flow regulating valve is an electrical proportional valve, and the first liquid flow regulating valve is connected to the temperature sensor signal.

3. The hydrogen separation device according to claim 1, characterized in that: The cooling assembly also includes a first main partition, a second main partition and a plurality of cooling pipes, the first main partition and the second main partition are arranged inside the main body and divide the inside of the main body into a first chamber, a second chamber and a third chamber in sequence, the water inlet pipe is connected to the first chamber, the drain pipe is connected to the third chamber, a plurality of cooling pipes are arranged in the second chamber, and one end of each cooling pipe is connected to the first chamber, and the other end is connected to the second chamber; the first chamber, the third chamber and the tube cavities of the plurality of cooling pipes form a cooling chamber; in the second chamber, the portion other than the plurality of cooling pipes forms the separation chamber.

4. The hydrogen separation device according to claim 3, characterized in that: The width of the second chamber is greater than the widths of the first chamber and the third chamber.

5. The hydrogen separation device according to claim 3, characterized in that: The cooling assembly also includes a plurality of sub-partitions, which are spaced and staggered in the second chamber, each of the sub-partitions is connected to the inner wall of the second chamber, and each of the cooling pipes is passed through the sub-partitions.

6. The hydrogen separation device according to any one of claims 1 to 5, characterized in that: The exhaust assembly includes an exhaust pipe, a pressure sensor and a gas flow regulating valve. One end of the exhaust pipe is arranged at the top of the main body and is connected to the separation chamber. The gas flow regulating valve is arranged at the other end of the exhaust pipe. The pressure sensor is used to detect the pressure of hydrogen discharged from the exhaust pipe.

7. The hydrogen separation device according to claim 6, characterized in that: The gas flow regulating valve is an electrical proportional valve, and the gas flow regulating valve is connected to the pressure sensor signal.

8. The hydrogen separation device according to claim 6, characterized in that: The device also includes a liquid level controller and a second liquid flow regulating valve, one end of the liquid level controller is connected to the separation chamber, and the other end is connected to the upper part of the exhaust pipe; the second liquid flow regulating valve is arranged on the outlet pipe.

9. The hydrogen separation device according to claim 8, characterized in that: The second liquid flow regulating valve is an electrical proportional valve, and the second liquid flow regulating valve is connected to the liquid level controller signal.

10. The hydrogen separation device according to claim 6, characterized in that: The exhaust assembly further includes a foam breaker, which is arranged in the exhaust pipe.

Images