Gas-liquid separation system for electrolytic hydrogen production device

Abstract

The utility model discloses a gas-liquid separation system for an electrolytic hydrogen production device. The gas-liquid separation system comprises a gas-liquid separation tank, a gas cooler, a gas-water separator, an oxygen-water separator and a hydrogen-water separator, a gas-liquid mixture enters a gas cooler after being subjected to primary water removal in a gas-liquid separation tank, is cooled from bottom to top and then flows into a small gas-water separator to be separated, separated liquid flows out from a condensate outlet below the gas cooler, and gas flows out from a gas outlet above the gas cooler; and the separated gas enters a corresponding oxygen-water separator or hydrogen-water separator for further treatment according to the type of the separated gas. According to the utility model, the compact arrangement of the gas-liquid separation system equipment is realized, the equipment cost is reduced, and the working reliability of the gas-liquid separation system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic water hydrogen production technical field, concretely relates to a kind of gas-liquid separation system for electrolytic hydrogen production device. BACKGROUND

[0002] As energy storage medium, hydrogen has the characteristics of high energy density and clean pollution-free, and is the key to solve energy crisis and green low-carbon transformation of energy structure. The basic principle of electrolytic water hydrogen production is to use electric energy to decompose water molecules into hydrogen and oxygen, the whole process does not produce harmful substances, and raw material water resources are abundant, which can be supplied almost unlimitedly. Using renewable energy (such as solar energy and wind energy) to produce hydrogen by electrolysis can solve the problem of power grid consumption and storage, and reduce carbon emissions, which not only realizes the green transformation of energy, but also promotes the consumption and storage of renewable energy.

[0003] After obtaining hydrogen by electrolysis, some water and other impurities are mixed in it, so a gas-liquid separation device is needed, but the existing gas-liquid separation device first uses some cooling equipment to cool the water in hydrogen, and then separates it by filtering equipment. Specifically, the gas cooling equipment and the gas-water separation filtering equipment are separately arranged, which occupies a large space and reduces the working reliability of the gas-liquid separation system and increases the manufacturing cost of the equipment. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model provides a kind of gas-liquid separation system for electrolytic hydrogen production device, aims at realizing the compact setting of gas-liquid separation system equipment, reduces equipment cost, and improves the working reliability of gas-liquid separation system. The specific technical scheme is as follows:

[0005] A kind of gas-liquid separation system for electrolytic hydrogen production device, comprising:

[0006] a. gas-liquid separation tank, for receiving and initially separating gas-liquid mixture;

[0007] b. gas cooler, connected between the gas-liquid separation tank by pipeline, for cooling the gas flowing out from the gas-liquid separation tank;

[0008] c. gas-water separator, arranged in the upper half of the gas cooler, for further separating water in the cooled gas;

[0009] d. oxygen-water separator, for separating and recycling water solution containing oxygen;

[0010] e. hydrogen-water separator, for separating and recycling water solution containing hydrogen;

[0011] The gas-liquid mixture is preliminarily dewatered in the gas-liquid separation tank, then enters the gas cooler, and is cooled from bottom to top, and then flows into the small gas-water separator to be separated, the separated liquid flows out from the condensate outlet below the gas cooler, and the gas flows out from the gas outlet above the gas cooler; and the separated gas enters the corresponding oxygen-water separator or hydrogen-water separator for further treatment according to the type of the separated gas.

[0012] Specifically, the type of the separated gas is oxygen or hydrogen; the gas-liquid separation tank can be a gas-liquid separation tank for separating oxygen or a gas-liquid separation tank for separating hydrogen; when the gas flowing out from the gas outlet above the gas cooler is oxygen, the gas enters the oxygen-water separator for further treatment; when the gas flowing out from the gas outlet above the gas cooler is hydrogen, the gas enters the hydrogen-water separator for further treatment.

[0013] In the utility model, the gas cooler is internally provided with a cooling medium channel for cooling the gas by the cooling medium.

[0014] In the utility model, the small gas-water separator is internally provided with a gas-water separation element for improving the efficiency of gas-water separation.

[0015] In the utility model, the oxygen-water separator and the hydrogen-water separator are both internally provided with a selective permeation membrane for respectively recovering the aqueous solution containing oxygen and hydrogen.

[0016] In the utility model, the gas-liquid separation system further comprises a control system for monitoring and adjusting the working state of each component to ensure the stable operation of the system.

[0017] As a further improvement of the utility model, the gas cooler comprises a tank body, sealing plates arranged at both ends of the tank body, a plurality of cooling water pipes arranged at intervals and connected between the sealing plates at both ends of the tank body, a first cover and a second cover arranged outside the sealing plates at both ends of the tank body respectively, and a partition plate arranged in the first cover, which divides the internal space of the first cover into a cold water inlet cavity and a cold water outlet cavity, and a cold water inlet and a cold water outlet are further arranged on the first cover and communicate with the cold water inlet cavity and the cold water outlet cavity respectively; the cooling water pipes are divided into two groups, one group of the cooling water pipes is used as a gas cooling cooling water pipe for cooling gas in the gas cooler, and the other group of the cooling water pipes is used as a gas-water separation cooling water pipe for gas-water separation in the gas-water separator.

[0018] One end of the gas cooling cooling water pipe communicates with the cold water inlet cavity, and the other end communicates with the internal overflow water cavity of the second cover; one end of the gas-water separation cooling water pipe communicates with the cold water outlet cavity, and the other end communicates with the internal overflow water cavity of the second cover.

[0019] The cooling water inlet cavity, the cooling water pipe for gas cooling, the internal flow-through water cavity, the cooling water pipe for gas-water separation and the cooling water outlet cavity are sequentially communicated to form a cooling medium passage in the gas cooler, and the cooling water pipe for gas-water separation forms a gas-water separation element of the small gas-water separator.

[0020] Preferably, the tank body is arranged transversely and is inclined at an angle relative to the horizontal direction, the first cover is arranged at a high end position of the inclined tank body, and the second cover is arranged at a low end position of the inclined tank body; the tank body is respectively provided with a gas inlet and a gas outlet, the gas inlet is arranged at a lower side position of the tank body close to the high end position, and the gas outlet is arranged at an upper side position of the tank body close to the low end position.

[0021] Preferably, the tank body is arranged transversely and is inclined at an angle relative to the horizontal direction, the first cover is arranged at a high end position of the inclined tank body, and the second cover is arranged at a low end position of the inclined tank body; the tank body is respectively provided with a gas inlet and a gas outlet, the gas inlet is arranged at a lower side position of the tank body close to the high end position, and the gas outlet is arranged at an upper side position of the tank body close to the low end position.

[0022] Preferably, a liquid storage bag in communication with the internal space of the tank body is arranged at a lower portion of the tank body, and the condensate outlet is arranged at a lower end of the liquid storage bag.

[0023] Preferably, a valve is arranged on the condensate outlet.

[0024] Preferably, the gas outlet of the tank body and the liquid storage bag of the tank body are arranged in an up-down position, and a gas outlet pipeline is connected to the gas outlet.

[0025] As a further improvement of the utility model, the gas-water separator further comprises a wire mesh demister for further improving the water removal effect, the wire mesh demister comprises a wire mesh assembly arranged in the tank body and located below the gas outlet of the tank body, and the wire mesh assembly comprises a wire mesh frame and a wire mesh arranged on the wire mesh frame.

[0026] Preferably, the wire mesh in the wire mesh assembly is a multilayer stacked wire mesh formed by stacking several layers of wire mesh.

[0027] The working principle of the gas-liquid separation system with the built-in wire mesh demister is as follows:

[0028] After the gas-liquid mixture is preliminarily dehydrated in the gas-liquid separation tank, it enters the gas cooler, first passes through cooling from bottom to top, and then flows into the small gas-water separator for separation, the separated liquid further passes through the wire mesh demister for further filtering of fine liquid droplets, and then flows out from the condensate outlet below the gas cooler, while the gas flows out from the gas outlet above the gas cooler; and according to the type of the separated gas, the gas enters the corresponding oxygen-water separator or hydrogen-water separator for further processing.

[0029] In consideration of the change of air flow speed and other factors, the wire mesh of the wire mesh demister may be retained with excessive water after working for a period of time, which may cause the interception performance of the wire mesh to drop, in order to restore the performance in time, the wire mesh demister further comprises a wire mesh intermittent shaker arranged on the tank body and used for preventing the wire mesh assembly from being overloaded with water, the wire mesh intermittent shaker comprises four suspension shafts arranged vertically at the four corner positions of the wire mesh frame in the up-down direction, four suspension holes arranged on the tank body, an elastic seat ring arranged on the outer wall of the tank body and located at the periphery of the suspension holes, a support plate arranged at the upper end of the elastic seat ring, an ultrasonic vibrator arranged at the upper end of the support plate, and a tension sensor arranged at the lower end of the support plate and used for measuring the water weight of the wire mesh assembly in line, and the suspension shafts on the wire mesh frame are connected to the tension sensor after penetrating through the suspension holes on the tank body.

[0030] In the utility model, the ultrasonic vibrator is connected to an ultrasonic generator, and the ultrasonic generator and the tension sensor are connected to a control system respectively.

[0031] The wire mesh intermittent shaker adopts an intermittent working mode, and is only started for a short time when the water weight in the wire mesh assembly (the water amount retained in the wire mesh) reaches or exceeds a set value, so that the interception effect of the wire mesh drops; the working principle is that the ultrasonic vibrator drives the wire mesh assembly to vibrate ultrasonically, so that most of the water droplets in the wire mesh are shaken off under the action of ultrasonic vibration, and a small part of the water droplets are atomized under the action of ultrasonic vibration, so that the high-efficiency water droplet interception function is rapidly restored. The change of the water amount retained in the wire mesh is measured by the tension sensor.

[0032] As a preferred scheme of the wire mesh assembly in the utility model, the multilayer laminated wire mesh is connected to the wire mesh frame and forms a tile shape as a whole, and flexible corrugated baffles which are in soft contact with the upper inner wall of the tank body are arranged at the four frame positions of the wire mesh frame.

[0033] In order to increase the flow area of the wire mesh, the wire mesh assembly in the tile shape extends to a high end position close to the inside of the tank at one end and extends to a low end position close to the inside of the tank at the other end, so as to form a large-area wire mesh water collection layer.

[0034] Considering that a small part of water droplets on the wire mesh will be atomized when the wire mesh assembly is ultrasonically vibrated, in order to reduce or eliminate the overflow of the atomized gas in a short time, an umbrella-shaped mist collecting cover is arranged at the inner central position of the joint part of the gas outlet pipeline and the gas outlet of the tank body, the top of the umbrella-shaped mist collecting cover is provided with an atomized gas recycling bypass pipe extending to the outside, the atomized gas recycling bypass pipe is connected to the liquid storage bag and communicates with the upper space inside the liquid storage bag, and a gas pump for forming negative pressure in the umbrella-shaped mist collecting cover is arranged on the atomized gas recycling bypass pipe.

[0035] It is noted that the gas pump on the atomized gas recycling bypass pipe also adopts an intermittent working mode, and is synchronously opened and closed with the ultrasonic vibrator.

[0036] The beneficial effects of the utility model are as follows:

[0037] Firstly, the gas-liquid separation system for the electrolytic hydrogen production device can better reduce the gas-liquid temperature by directly embedding the gas-water separator in the gas cooler, realize compact setting of the gas-liquid separation system equipment, thereby reducing the equipment cost and improving the working reliability of the gas-liquid separation system.

[0038] Secondly, the gas-liquid separation system for the electrolytic hydrogen production device can separate more fine liquid droplets in the gas-liquid by directly embedding the wire mesh demister in the gas cooler, thereby further improving the gas-liquid separation effect of the gas-liquid separation system; the wire mesh intermittent shaker arranged on the wire mesh demister can make the wire mesh assembly always in the optimal working state, thereby further improving the gas-liquid separation effect. In addition, the built-in wire mesh assembly adopts a tile-shaped structure, which can fully expand and extend in the front, back, left and right directions in the tank body, thereby obtaining a larger interception area, so that the air resistance can be greatly reduced, and the efficiency and working reliability of the gas-liquid separation are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structural schematic view of a gas-liquid separation system for an electrolytic hydrogen production device of the utility model;

[0040] Figure 2 is a structural schematic view further improved on the basis of Figure 1 ;

[0041] Figure 3 is a partial enlarged view of the part close to the left side in Figure 2 ;

[0042] Figure 4 is a partial enlarged view of the part close to the left side in Figure 2Close-up view of the right-hand portion of the middle part;

[0043] Figure 5 is Figure 2 Cross-sectional view of the wire mesh assembly in

[0044] In the figure: 1, gas cooler, 2, gas-water separator, 3, tank body, 4, sealing plate, 5, first cover, 6, second cover, 7, partition plate, 8, cold water inlet cavity, 9, cold water outlet cavity, 10, cold water inlet, 11, cold water outlet, 12, cooling water pipe for gas cooling, 13, cooling water pipe for gas-water separation, 14, internal overflow cavity of the second cover, 15, gas inlet, 16, gas outlet, 17, liquid storage bag, 18, gas outlet pipeline, 19, condensate outlet.

[0045] In the figure: 20, wire mesh demister, 21, wire mesh assembly, 22, wire mesh frame, 23, wire mesh, 24, wire mesh intermittent shaker, 25, suspension shaft, 26, suspension hole, 27, elastic seat, 28, support plate, 29, ultrasonic transducer, 30, tension sensor, 31, tile shape, 32, flexible corrugated baffle, 33, umbrella-shaped mist collecting cover, 34, atomized gas recovery bypass pipe, 35, air pump. DETAILED DESCRIPTION

[0046] The specific embodiments of the utility model will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0047] As Figures 1 to 5 The embodiment of the gas-liquid separation system for the electrolytic hydrogen production device provided by the utility model comprises:

[0048] a. A gas-liquid separation tank (not shown in the figure) is used for receiving and preliminarily separating a gas-liquid mixture;

[0049] b. A gas cooler 1 is connected to the gas-liquid separation tank through a pipeline and is used for cooling the gas flowing out of the gas-liquid separation tank;

[0050] c. A gas-water separator 2 is arranged in the upper half of the gas cooler 1 and is used for further separating the water in the cooled gas;

[0051] d. An oxygen-water separator (not shown in the figure) is used for separating and recovering the water solution containing oxygen;

[0052] e. A hydrogen-water separator (not shown in the figure) is used for separating and recovering the water solution containing hydrogen;

[0053] The gas-liquid mixture is first cooled from bottom to top in the gas cooler 1, and then flows into the small gas-water separator 2 for separation, the separated liquid flows out from the condensate outlet 19 at the bottom of the gas cooler 1, and the gas flows out from the gas outlet 16 at the top of the gas cooler 1; and the separated gas enters the corresponding oxygen-water separator or hydrogen-water separator for further processing according to the type of the separated gas.

[0054] Specifically, the type of the separated gas is oxygen or hydrogen; the gas-liquid separation tank can be a gas-liquid separation tank for separating oxygen or a gas-liquid separation tank for separating hydrogen; when the gas flowing out from the gas outlet 16 at the top of the gas cooler 1 is oxygen, it enters the oxygen-water separator for further processing; when the gas flowing out from the gas outlet 16 at the top of the gas cooler 1 is hydrogen, it enters the hydrogen-water separator for further processing.

[0055] In this embodiment, the gas cooler 1 is internally provided with a cooling medium channel for cooling the gas by a cooling medium.

[0056] In this embodiment, the small gas-water separator 2 is internally provided with a gas-water separation element for improving the efficiency of gas-water separation.

[0057] In this embodiment, the oxygen-water separator and the hydrogen-water separator are both internally provided with a selectively permeable membrane for recovering an aqueous solution containing oxygen or hydrogen, respectively.

[0058] In this embodiment, the gas-liquid separation system further comprises a control system for monitoring and adjusting the working state of each component to ensure stable operation of the system.

[0059] As a further improvement of this embodiment, the gas cooler 1 comprises a tank body 3, end plates 4 arranged at both ends of the tank body 3, a plurality of cooling water pipes 12, 13 arranged at intervals and connected between the end plates 4 at both ends of the tank body 3, a first cover 5 and a second cover 6 arranged outside the end plates 4 at both ends of the tank body 3, respectively, a partition plate 7 arranged in the first cover 5, the partition plate 7 dividing the internal space of the first cover 5 into a cold water inlet cavity 8 and a cold water outlet cavity 9, a cold water inlet 10 and a cold water outlet 11 arranged on the first cover 5 and connected with the cold water inlet cavity 8 and the cold water outlet cavity 9, respectively; the cooling water pipes 12, 13 are divided into two groups, one group of cooling water pipes 12 as gas cooling cooling water pipes 12 for cooling gas in the gas cooler 1, and the other group of cooling water pipes 13 as gas-water separation cooling water pipes 13 for gas-water separation in the gas-water separator 2.

[0060] The one end of the gas cooling cooling water pipe 12 is communicated with the cold water inlet cavity 8, and the other end is communicated with the internal flow water cavity 14 of the second cover 6. The one end of the gas-water separation cooling water pipe 13 is communicated with the cold water outlet cavity 9, and the other end is communicated with the internal flow water cavity 14 of the second cover 2.

[0061] The cold water inlet cavity 8, the gas cooling cooling water pipe 12, the internal flow water cavity 14, the gas-water separation cooling water pipe 13 and the cold water outlet cavity 9 are communicated in sequence, thereby forming a cooling medium passage in the gas cooler 1. The gas-water separation cooling water pipe 13 constitutes a gas-water separation element of the small gas-water separator 2.

[0062] Preferably, the tank body 3 is arranged transversely and is inclined at an angle relative to the horizontal direction. The first cover 5 is arranged at the high end of the inclined tank body 3, and the second cover 6 is arranged at the low end of the inclined tank body 3. The gas inlet 15 and the gas outlet 16 are arranged on the tank body 3 respectively. The gas inlet 15 is arranged on the lower side of the tank body 3 near the high end, and the gas outlet 16 is arranged on the upper side of the tank body 3 near the low end.

[0063] Preferably, the tank body 3 is arranged transversely and is inclined at an angle relative to the horizontal direction. The first cover 5 is arranged at the high end of the inclined tank body 3, and the second cover 6 is arranged at the low end of the inclined tank body 3. The gas inlet 15 and the gas outlet 16 are arranged on the tank body 3 respectively. The gas inlet 15 is arranged on the lower side of the tank body 3 near the high end, and the gas outlet 16 is arranged on the upper side of the tank body 3 near the low end.

[0064] Preferably, the tank body 3 is arranged transversely and is inclined at an angle relative to the horizontal direction. The first cover 5 is arranged at the high end of the inclined tank body 3, and the second cover 6 is arranged at the low end of the inclined tank body 3. The gas inlet 15 and the gas outlet 16 are arranged on the tank body 3 respectively. The gas inlet 15 is arranged on the lower side of the tank body 3 near the high end, and the gas outlet 16 is arranged on the upper side of the tank body 3 near the low end.

[0065] Preferably, the tank body 3 is arranged transversely and is inclined at an angle relative to the horizontal direction. The first cover 5 is arranged at the high end of the inclined tank body 3, and the second cover 6 is arranged at the low end of the inclined tank body 3. The gas inlet 15 and the gas outlet 16 are arranged on the tank body 3 respectively. The gas inlet 15 is arranged on the lower side of the tank body 3 near the high end, and the gas outlet 16 is arranged on the upper side of the tank body 3 near the low end.

[0066] Preferably, the tank body 3 is arranged transversely and is inclined at an angle relative to the horizontal direction. The first cover 5 is arranged at the high end of the inclined tank body 3, and the second cover 6 is arranged at the low end of the inclined tank body 3. The gas inlet 15 and the gas outlet 16 are arranged on the tank body 3 respectively. The gas inlet 15 is arranged on the lower side of the tank body 3 near the high end, and the gas outlet 16 is arranged on the upper side of the tank body 3 near the low end.

[0067] As a further improvement of the embodiment, the gas-water separator 2 further comprises a wire mesh demister 20 for further improving the water removal effect. The wire mesh demister 20 comprises a wire mesh assembly 21 arranged inside the tank body 3 and located below the gas outlet 16 of the tank body 3. The wire mesh assembly 21 comprises a wire mesh frame 22 and a wire mesh 23 arranged on the wire mesh frame 22.

[0068] Preferably, the wire mesh 23 in the wire mesh assembly 22 is a multi-layer stacked wire mesh formed by stacking several layers of wire mesh.

[0069] The working principle of the gas-liquid separation system with the built-in wire mesh demister 20 is as follows:

[0070] After the gas-liquid mixture is preliminarily dewatered in the gas-liquid separation tank, it enters the gas cooler 1, and is cooled from bottom to top, and then flows into the small gas-water separator 2 for separation. The separated liquid further passes through the wire mesh demister 20 for further filtering of fine liquid droplets, and then flows out from the condensate outlet 19 at the bottom of the gas cooler 1, while the gas flows out from the gas outlet 16 at the top of the gas cooler 1. The separated gas enters the corresponding oxygen-water separator or hydrogen-water separator for further processing according to the type of the separated gas.

[0071] Considering the change of gas flow speed and other factors, the wire mesh 23 of the wire mesh demister 20 may retain excessive water after a period of operation, which may reduce the water droplet interception performance of the wire mesh 23. In order to restore the performance of the wire mesh 23 in time, the wire mesh demister 20 further comprises a wire mesh intermittent shaker 24 arranged on the tank body 3 for preventing the wire mesh assembly 21 from retaining excessive water. The wire mesh intermittent shaker 24 comprises four suspension shafts 25 vertically arranged at the four corner portions of the wire mesh frame 22 in the up-down direction, four suspension holes 26 arranged on the tank body 3, elastic seat rings 27 arranged on the outer wall of the tank body 3 and located at the periphery of the suspension holes 26, a support plate 28 arranged at the upper end of the elastic seat rings 27, an ultrasonic vibrator 29 arranged at the upper end of the support plate 28, and a tension sensor 30 arranged at the lower end of the support plate 28 for measuring the water retention weight of the wire mesh assembly 21. The suspension shafts 25 on the wire mesh frame 22 pass through the suspension holes 26 on the tank body 3 and are connected to the tension sensor 30.

[0072] In this embodiment, the ultrasonic vibrator 29 is connected to an ultrasonic generator, and the ultrasonic generator and the tension sensor 30 are respectively connected to a control system.

[0073] The wire mesh intermittent shaker 24 adopts an intermittent operation mode. It is only used for a short time when the water retention weight (the amount of water retained in the wire mesh 23) of the wire mesh assembly 21 reaches or exceeds the set value, which causes the interception effect of the wire mesh 23 to decrease. The working principle is that the ultrasonic vibrator 29 drives the wire mesh assembly 21 to vibrate ultrasonically, so that most of the water droplets in the wire mesh 23 are shaken off, and a small part of the water droplets are atomized, thereby rapidly restoring the high-efficiency water droplet interception function. The change of the water amount retained in the wire mesh 23 is measured by the tension sensor 30.

[0074] As a preferred scheme of the wire mesh assembly in this embodiment, the multi-layer laminated wire mesh 23 is connected to the wire mesh frame 22 as a whole in the shape of a tile 31, and is provided with flexible corrugated baffles 32 at the four edge frame positions of the wire mesh frame 22, which softly contact the upper inner wall of the tank body 3.

[0075] In order to increase the flow area of the wire mesh 23, the wire mesh assembly 21 in the shape of a tile 31 extends from one end to a high end position close to the inside of the tank body 3 and from the other end to a low end position close to the inside of the tank body 3, thereby forming a large-area wire mesh water collecting layer.

[0076] Considering that a small amount of water droplets on the wire mesh 23 will be atomized when the wire mesh assembly 21 is ultrasonically vibrated, in order to reduce or eliminate the overflow of atomized gas in a short time, an umbrella-shaped mist collecting cover 33 is arranged at the inner center position of the joint part of the gas outlet pipeline 18 and the gas outlet 16 of the tank body 3, the top of the umbrella-shaped mist collecting cover 33 is provided with an atomized gas recovery bypass pipe 34 extending to the outside, the atomized gas recovery bypass pipe 34 is connected to the liquid storage bag 17 and communicates with the upper space inside the liquid storage bag 17, and a gas pump 35 for forming negative pressure inside the umbrella-shaped mist collecting cover 33 is arranged on the atomized gas recovery bypass pipe 34. Through the gas pump 35, the atomized gas can be recovered into the upper space inside the liquid storage bag 17.

[0077] It is noted that the gas pump 35 on the atomized gas recovery bypass pipe 34 also adopts an intermittent working mode, which is synchronously opened and closed with the ultrasonic vibrator 29.

[0078] The above is only the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A gas-liquid separation system for an electrolytic hydrogen generation apparatus, characterized by, The application relates to a gas-liquid separation device. The device comprises: a. a gas-liquid separation tank for receiving and preliminarily separating a gas-liquid mixture; b. a gas cooler connected to the gas-liquid separation tank through a pipeline for cooling the gas flowing out of the gas-liquid separation tank; c. a gas-water separator arranged in the upper half of the gas cooler for further separating water from the cooled gas; d. an oxygen-water separator for separating and recycling an aqueous solution containing oxygen; e. a hydrogen-water separator for separating and recycling an aqueous solution containing hydrogen; 2. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 1, characterized in that, wherein the gas-liquid mixture is preliminarily separated from water in the gas-liquid separation tank, then enters the gas cooler, is cooled from bottom to top, and then flows into a small gas-water separator for separation, the separated liquid flows out of the condensate outlet at the lower part of the gas cooler, and the gas flows out of the gas outlet at the upper part of the gas cooler; and the separated gas enters the corresponding oxygen-water separator or hydrogen-water separator for further treatment according to the type of the separated gas.

3. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 1, wherein The gas cooler is internally provided with a cooling medium channel for cooling the gas by a cooling medium.

4. The gas-liquid separation system for the hydrogen generation device according to claim 1, wherein The small gas-water separator is internally provided with a gas-water separation element for improving the efficiency of gas-water separation.

5. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 1, wherein The oxygen-water separator and the hydrogen-water separator are both internally provided with a selective permeation membrane for recycling the aqueous solutions containing oxygen and hydrogen, respectively.

6. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 5, wherein The gas cooler comprises a tank body, end plates arranged at both ends of the tank body, a plurality of cooling water pipes arranged at intervals and connected between the end plates of the tank body, a first cover and a second cover arranged outside the end plates of the tank body, respectively, a partition plate arranged in the first cover, the partition plate divides the internal space of the first cover into a cold water inlet cavity and a cold water outlet cavity, and a cold water inlet and a cold water outlet are arranged on the first cover and communicate with the cold water inlet cavity and the cold water outlet cavity, respectively; the cooling water pipes are divided into two groups, one group of the cooling water pipes is used as a gas cooling cooling water pipe for cooling the gas in the gas cooler, and the other group of the cooling water pipes is used as a gas-water separation cooling water pipe for gas-water separation in the gas-water separator.

7. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 6, wherein One end of the gas cooling cooling water pipe communicates with the cold water inlet cavity, and the other end communicates with the internal overflow water cavity of the second cover; one end of the gas-water separation cooling water pipe communicates with the cold water outlet cavity, and the other end communicates with the internal overflow water cavity of the second cover.

8. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 7, wherein The tank body is arranged transversely and is inclined at a certain angle relative to the horizontal direction, the first cover is arranged at the high end of the inclined tank body, and the second cover is arranged at the low end of the inclined tank body; a gas inlet and a gas outlet are arranged on the tank body, the gas inlet is arranged on the lower side of the tank body near the high end, and the gas outlet is arranged on the upper side of the tank body near the low end. A liquid storage bag is arranged at the lower part of the tank body and communicates with the internal space of the tank body, and the condensate outlet is arranged at the lower end of the liquid storage bag.

9. A gas-liquid separation system for an electrolytic hydrogen generator according to claim 8, wherein The gas outlet on the tank body and the liquid storage bag on the tank body are arranged in up-down positions; a gas outlet pipeline is connected to the gas outlet.

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