Gas-liquid separation device capable of reducing gas content in water electrolysis hydrogen production electrolyte

Abstract

The utility model provides a gas-liquid separation device capable of reducing the gas content in a water electrolysis hydrogen production electrolyte, which comprises a shell, a gas-liquid separation device, a gas-liquid separation device and a liquid storage tank, the shell is provided with an inlet pipeline through which a gas-liquid mixture flows into the shell, and the lower part of the interior of the shell is a liquid collection area; the first separation area is mounted in the shell, and the first separation area comprises a flow dividing assembly used for conducting circumferential flow dividing on the inflowing gas-liquid mixture along the inlet pipeline and a baffle assembly used for converting the flowing direction of the inflowing gas-liquid mixture from the horizontal direction to the vertical direction; the second separation area is arranged in the shell, a rectification coalescer is arranged in the second separation area, and the second separation area is used for rectifying the gas-liquid mixture passing through the first separation area, slowing down the flow speed of the gas-liquid mixture and enabling water vapor and small liquid drops in the gas flowing through the second separation area to be condensed and settled on the rectification coalescer to be removed from the gas; according to the separation device provided by the utility model, liquid flow, liquid drops and water vapor can be separated as much as possible, and the separation efficiency of a gas-liquid mixture is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of water electrolysis hydrogen production technology, specifically relating to a gas-liquid separation device that can reduce the gas content in the electrolyte of water electrolysis hydrogen production. Background Technology

[0002] Hydrogen energy has become a strategic emerging industry and a key development direction for future industries in my country. Alkaline electrolysis is currently the most mature and widely used green hydrogen production method. It mainly involves electrolyzing an alkaline solution in an electrolyzer to produce hydrogen and oxygen. The generated hydrogen / oxygen flows out of the electrolyzer along with the alkaline solution and enters a corresponding gas-liquid separation device for preliminary gas-liquid separation. Because the hydrogen and oxygen produced by electrolysis have very low solubility in the electrolyte, they often exist as bubbles in the gas-liquid separation device. Currently, gravity is often used to separate these bubbles into gas and liquid. However, due to the limited length of the gas-liquid separation device and the limited separation capacity of gravity itself, the gas-liquid separation efficiency is low, thus requiring improvement. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention proposes a gas-liquid separation device that can reduce the gas content in the electrolyte of water electrolysis for hydrogen production. This device can separate liquid flow, droplets, and water vapor as much as possible, while reducing the gas content in the electrolyte of water electrolysis for hydrogen production and significantly improving the separation efficiency of the gas-liquid mixture.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production includes:

[0006] The housing is provided with an inlet pipe for the gas-liquid mixture to flow into the housing, and the lower part of the housing is a liquid collection area;

[0007] A first separation zone is installed inside the housing. The first separation zone includes a diversion assembly for circumferentially diverting the inflowing gas-liquid mixture along the inlet pipe and a baffle assembly for changing the flow direction of the inflowing gas-liquid mixture from the horizontal direction to the vertical direction.

[0008] The second separation zone is located inside the housing. A rectifier coalescer is installed in the second separation zone to rectify the gas-liquid mixture after passing through the first separation zone and slow down the flow rate of the gas-liquid mixture. It also causes water vapor and small droplets in the gas flowing through the second separation zone to condense and settle on the rectifier coalescer and be removed from the gas.

[0009] The heating element is installed below the electrolyte level in the collection area for heating the electrolyte.

[0010] Ultrasonic vibration assembly for ultrasonically vibrating electrolyte.

[0011] Preferably, the diversion assembly includes multiple diversion plates symmetrically arranged at the upper and lower parts of the inlet pipe and inserted into the inner cavity of the inlet pipe along the axis of symmetry of the inlet pipe, and multiple air outlets arranged on the inlet pipe, wherein the diversion plates and air outlets are arranged alternately.

[0012] Preferably, the inlet pipe includes a first part and a second part. An air inlet is provided at the front end of the first part, and multiple air outlets are provided on the second part. The flow divider includes multiple inclined flow dividers obliquely disposed in the second part and two horizontal flow dividers disposed at the rear end of the second part. A first flow channel is formed between the two inclined flow dividers, and a second flow channel is formed between the horizontal flow dividers and between the horizontal flow dividers and their adjacent inclined flow dividers.

[0013] Preferably, the baffle assembly includes a baffle that changes the flow direction of the inflowing gas-liquid mixture from horizontal to vertical and a fixing member for fixing the baffle.

[0014] Preferably, the rectifier coalescer includes two fixed plates and multiple corrugated plates. The two fixed plates are arranged along the length of the shell, and the multiple corrugated plates are evenly distributed and fixed between the two fixed plates. A gas flow channel for the gas-liquid mixture to pass through is formed between the two corrugated plates in the vertical direction.

[0015] Preferably, the gas-liquid separation device includes a baffle assembly for isolating the electrolyte in the collection zone, the baffle assembly being installed below the electrolyte level in the collection zone.

[0016] Preferably, the wave deflector assembly includes a first wave deflector and a plurality of second wave deflectors evenly distributed along the length of the shell. Both the first and second wave deflectors include a plurality of staggered first through holes. The first wave deflector is provided with a notch, and the second wave deflector is provided with a support hole at its center. The heater in the heating assembly is positioned on the notch at its front and is fitted into a plurality of parallel support holes at its rear.

[0017] Preferably, the ultrasonic vibration assembly includes an ultrasonic vibration component and a first interface, wherein the ultrasonic vibration component is mounted on the housing through the first interface.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention provides a gas-liquid separation device that can reduce the gas content in the electrolyte of water electrolysis for hydrogen production. By incorporating a flow-diverting component and a baffle assembly within the housing, the flow-diverting component diverts most of the gas-liquid mixture circumferentially along the inlet pipe. The diverted gas-liquid mixture impacts the inner surface of the housing in the gas-liquid separation zone along the velocity direction, and its kinetic energy is absorbed by the inner surface of the housing. The remaining undiverted gas-liquid mixture passes through the flow-diverting component and impacts the baffle assembly in the velocity direction, changing its direction from horizontal to vertical, and its kinetic energy is absorbed by the baffle assembly. Both the inner surface of the housing where the first separation zone is located and the baffle assembly can serve as energy absorption areas. Thus, the flow-diverting component, baffle assembly, and inner surface of the housing maximally alter the flow direction of the gas-liquid mixture entering the gas-liquid separation device and absorb its kinetic energy, separating as much liquid and large droplets as possible. This simultaneously reduces the gas content in the water electrolysis for hydrogen production and significantly improves the separation efficiency of the gas-liquid mixture. Furthermore, by installing a rectifier and coalescer in the second separation zone to rectify the gas-liquid mixture passing through the first separation zone, the incoming flow distribution in the first separation zone becomes more uniform, the airflow velocity and turbulence are reduced, and water vapor and small droplets in the gas flowing through the second separation zone condense and settle on the corrugated plate, thus being removed from the gas. In addition, by incorporating heating and ultrasonic vibration components, gases dissolved or mixed in the electrolyte are allowed to escape again, solving the problem of excessive hydrogen / oxygen dissolved in the electrolyte escaping as impurities during electrolysis or separation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention, including the liquid collection area;

[0023] Figure 3 for Figure 1 A magnified structural diagram of part A in the middle;

[0024] Figure 4 Left view of the rectifier coalescer;

[0025] Figure 5 This is a schematic diagram of the structure of the first wave-breaking plate;

[0026] Figure 6 This is a schematic diagram of the second wave deflector.

[0027] Attached diagram labels: 100, casing; 101, inlet pipe; 1011, first part; 1012, second part; 1013, air inlet; 102, air outlet; 103, liquid outlet; 104, drain outlet; 105, demister; 106, pressure test port; 107, safety relief port;

[0028] 200. First separation zone; 201. Flow divider assembly; 2011. Flow divider plate; 2012. Air outlet; 2013. Inclined flow divider plate; 2014. Horizontal flow divider plate; 202. Baffle assembly; 2021. Baffle plate; 2022. Fixing component;

[0029] 300. Second separation zone; 301. Rectifier and coalescer; 302. Fixing plate; 303. Corrugated plate; 304. Airflow channel;

[0030] 400. Liquid collection area;

[0031] 501. First wave deflector; 502. Second wave deflector; 503. Support hole; 504. First through hole; 505. Second through hole; 506. Notch;

[0032] 600. Heating component; 601. Heater; 602. Insulation layer; 603. Wiring port;

[0033] 700. Ultrasonic vibration assembly; 701. Ultrasonic vibration component; 702. First interface;

[0034] 800. Temperature sensing component; 801. Temperature sensing element; 802. Second interface;

[0035] 900. Liquid level control components. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] See Figures 1 to 6 The present invention discloses a gas-liquid separation device that can reduce the gas content in the electrolyte of water electrolysis for hydrogen production, including a shell 100, a first separation zone 200 and a second separation zone 300, a heating component 600, and an ultrasonic vibration component 700.

[0040] It is understood that in this embodiment, the liquid in the gas-liquid mixture is an electrolyte, the electrolyte is an alkaline solution, and the gas is hydrogen or oxygen.

[0041] The housing 100 is provided with an inlet pipe 101 for the gas-liquid mixture to flow into the housing 100. The lower part of the housing 100 is a liquid collection area 400 for collecting electrolyte. The housing 100 is provided with an outlet 102, a liquid outlet 103 and a drain outlet 104. The gas-liquid mixture flows into the housing 100 from the inlet pipe 101 and is separated into gas and liquid inside the housing 100. The liquid falls into the liquid collection area 400, and the gas is collected from the outlet 102. When the outlet 103 is opened, the liquid can be discharged from the liquid collection area 400. When the gas-liquid separation device needs maintenance / repair / replacement of electrolyte, the liquid in the liquid collection area 400 can be discharged from the drain outlet 104.

[0042] Specifically, a liquid level control component 900 is installed in the liquid collection area 400 to adjust and control the liquid level of the electrolyte in the liquid collection area 400 of the gas-liquid separator, so that the liquid level remains stable. When the liquid level is too high, the excess electrolyte is discharged from the liquid outlet 103. When the liquid level is too low, electrolyte needs to be added to the gas-liquid separator.

[0043] Understandably, due to the different specific gravities of gas and liquid, the gas outlet 102 is located at the upper part of the housing 100, while the liquid outlet 103 and the drain outlet 104 are located at the lower part of the housing 100.

[0044] It should be noted that the number and specific distribution of the air outlet 102, liquid outlet 103 and sewage outlet 104 can be designed according to the actual situation, and this embodiment does not impose specific restrictions.

[0045] The first separation zone 200 is installed inside the housing 100. The first separation zone 200 includes a diversion component 201 for circumferentially diverting the inflowing gas-liquid mixture along the inlet pipe 101 and a baffle component 202 for changing the flow direction of the inflowing gas-liquid mixture from the horizontal direction to the vertical direction. The diversion component 201 diverts most of the gas-liquid mixture along the circumferential direction of the inlet pipe 101. The diverted gas-liquid mixture impacts the inner surface of the housing 100 of the gas-liquid separation zone along the velocity direction, and its kinetic energy is absorbed by the inner surface of the housing 100. The remaining undiverted gas-liquid mixture passes through the diversion component 201 and impacts the baffle component 202 along the velocity direction, changing the flow direction of the gas-liquid mixture from horizontal to vertical, and its kinetic energy is absorbed by the baffle component 202. The inner surface of the housing 100 where the first separation zone 200 is located and the baffle assembly 202 can both serve as energy absorption areas. Thus, the flow direction of the gas-liquid mixture entering the gas-liquid separation device can be changed to the greatest extent and its kinetic energy can be absorbed by the diversion assembly 201, the baffle assembly 202 and the inner surface of the housing 100. This separates as much liquid flow and large droplets as possible, causing them to fall into the liquid collection zone 400. At the same time, it can reduce the gas content in the water electrolysis hydrogen production electrolyte and significantly improve the efficiency of gas-liquid separation.

[0046] The second separation zone 300 is disposed within the housing 100. A rectifier coalescer 301 is installed in the second separation zone 300 to rectify the gas-liquid mixture passing through the first separation zone 200, thereby making the inflow distribution through the first separation zone 200 more uniform and reducing the airflow velocity and turbulence.

[0047] The heating component 600 is installed below the electrolyte level in the liquid collection area 400 and is used to heat the electrolyte.

[0048] An ultrasonic vibration component 700 is used to ultrasonically vibrate the electrolyte. This embodiment solves the problem of excessive hydrogen / oxygen dissolved in the electrolyte escaping as impurities during electrolysis or separation by using a heating component 600 and an ultrasonic vibration component 700 to allow dissolved or mixed gases to escape again.

[0049] Furthermore, the flow splitting assembly 201 includes multiple flow splitting plates 2011 symmetrically arranged at the upper and lower parts of the inlet pipe 101 and inserted into the inner cavity of the inlet pipe 101 along the axis of symmetry of the inlet pipe 101, and multiple air outlets 2012 arranged on the inlet pipe 101. The flow splitting plates 2011 and air outlets 2012 are arranged alternately, thereby forming a first flow channel between two flow splitting plates 2011. The gas-liquid mixture comes out from the air outlets 2012 and enters the first flow channel, completing the circumferential flow splitting of the gas-liquid mixture.

[0050] Furthermore, the inlet pipe 101 includes a first part 1011 and a second part 1012. An air inlet 1013 is provided at the front end of the first part 1011, and a plurality of air outlets 2012 are provided on the second part 1012. The flow divider 2011 includes a plurality of inclined flow dividers 2013 inclinedly arranged in the second part 1012 and two horizontal flow dividers 2014 arranged at the rear end of the second part 1012. A first flow channel is formed between the two inclined flow dividers 2013, which is the inclined flow channel, thereby diverting most of the gas-liquid mixture along the circumference of the second part 1012. A second flow channel is formed between the horizontal flow dividers 2014 and between the horizontal flow dividers 2014 and the adjacent inclined flow dividers 2013, thereby allowing some of the undiverted gas-liquid mixture to pass through the second flow channel and impact the baffle assembly 202 in the velocity direction.

[0051] Furthermore, the baffle assembly 202 includes a baffle 2021 and a fixing member 2022. The baffle 2021 is used to change the flow direction of the inflowing gas-liquid mixture from the horizontal direction to the vertical direction. When a portion of the undiverted gas-liquid mixture impacts the first surface of the baffle 2021 along the velocity direction, the gas-liquid mixture can not only slow down the flow velocity of the gas-liquid mixture and play a certain energy dissipation role by having a head-on collision with the first surface of the baffle 2021, but also change the direction of the gas-liquid mixture, so that the flow direction changes from the horizontal direction to the vertical upward. Due to the difference in specific gravity between gas and liquid, the gas will be deflected and flow away, while the liquid, due to its greater inertia, will continue to have a horizontal forward velocity, thereby accelerating the upward movement of the gas in the gas-liquid mixture and playing the role of gas-liquid separation.

[0052] Specifically, the upper end of the baffle 2021 is fixed to the upper surface inside the housing 100, the lower end of the baffle 2021 is a certain distance from the highest liquid level of the liquid collection area 400, one end of the fixing member 2022 is fixed to the upper surface inside the housing 100, and the other end of the fixing member 2022 is fixed to the second surface of the baffle 2021 that is opposite to the first surface, so that the baffle 2021 can be fixed more firmly.

[0053] Furthermore, such as Figure 1 and 4As shown, the rectifier coalescer 301 includes two fixed plates 302 and multiple corrugated plates 303. The two fixed plates 302 are arranged along the length of the housing 100. The multiple corrugated plates 303 are evenly distributed and fixed between the two fixed plates 302. A gas flow channel 304 is formed between the two corrugated plates 303 in the vertical direction, through which the gas-liquid mixture can pass. The gas flow channel 304 is used to distribute the gas flow evenly and slow down the gas flow rate. It also causes water vapor and small droplets in the gas to condense and settle on the corrugated plates 303 and be removed from the gas. This makes the gas-liquid mixture coming from the first separation zone 200 more evenly distributed, slows down the gas flow rate and turbulence, and causes the decelerated water vapor / droplets to separate from the gas flow and condense and settle on the corrugated plates 303, thereby deeply removing water vapor and droplets from the gas flow.

[0054] Furthermore, the gas-liquid separation device also includes a demister 105, which is disposed at the gas outlet 102 of the housing 100.

[0055] Understandably, after the gas-liquid mixture passes through the first separation zone 200 and the second separation zone 300 in sequence, large-diameter bubbles and droplets are no longer present, and small-diameter bubbles and droplets are also negligible. The demister 105 can further remove droplets, thereby improving the quality of the separated gas.

[0056] Furthermore, the gas-liquid separation device also includes a baffle assembly for isolating the electrolyte in the collection zone 400. The baffle assembly is installed below the electrolyte surface in the collection zone 400. The baffle assembly reduces fluctuations in the electrolyte in the collection zone and the impact of the electrolyte on the separation device. The baffle assembly includes a first baffle 501 and a plurality of second baffles 502 evenly distributed along the length of the housing 100. Both the first baffle 501 and the second baffle 502 include a plurality of staggered first through holes 504. The first baffle 501 has a notch 506, and the second baffle 502 has a support hole 506 at its center. 03, wherein the notch 506 and the support hole 503 support and stabilize the heater 601 in the heating assembly 600, that is: the front part of the heater 601 is set on the notch 506, and the rear part of the heater 601 is sleeved in a plurality of mutually parallel support holes 503. In addition, the first through hole 504 is circular, and the staggered arrangement of the first through hole 504 can further reduce the flow and impact of electrolyte. The bottom of the first baffle 501 and the second baffle 502 are both provided with second through holes 505, which are also used to reduce the flow and impact of electrolyte, and can ensure that all electrolyte can be completely discharged from the separation device when the gas-liquid separation device is discharged.

[0057] In this embodiment, the heat from the heater 601 in the heating assembly 600 is transferred to the electrolyte through the heater 601 body and the baffle assembly. Below the boiling point temperature of the electrolyte, the temperature of the electrolyte can be appropriately increased according to the electrolyte and system operation conditions to reduce the solubility of gas in the electrolyte, thereby reducing the gas content in the electrolyte.

[0058] Furthermore, the ultrasonic vibration component 700 can generate ultrasonic vibration waves with a frequency of 20kHz to 100kHz in the liquid collection area. The vibration frequency is adjusted according to the electrolyte and system operation conditions to promote the rapid overflow of dissolved or mixed gas in the electrolyte, greatly reducing the gas content in the electrolyte. Specifically, the ultrasonic vibration component 700 includes an ultrasonic vibration element 701 and a first interface 702. The ultrasonic vibration element 701 is installed on the housing 100 through the first interface 702. The vibration end of the ultrasonic vibration element 701 is inserted into the liquid collection area 400. The electrical connection part of the ultrasonic vibration element 701 is located outside the housing 100.

[0059] Furthermore, the gas-liquid separation device also includes a temperature measuring component 800, which is used to measure the temperature of the electrolyte in the gas-liquid separation device in real time. Specifically, the temperature measuring component 800 includes a temperature measuring element 801 and a second interface 802. The temperature measuring element 801 is installed on the housing 100 through the second interface 802. The temperature measuring end of the temperature measuring element 801 is inserted into the liquid collection area 400. The electrical connection part of the temperature measuring element 801 is located outside the housing 100.

[0060] Furthermore, the rear end of the heater 601 is also provided with an insulation layer 602 and a wiring port 603. The insulation layer 602 facilitates heat preservation. The wiring port 603, the electrical connection part of the ultrasonic vibration component 701, and the electrical connection part of the temperature measuring component 801 are all electrically connected to the electrical control mechanism (not shown in the figure) of this gas-liquid separation device, and are used to control the heating, ultrasonication, and temperature measurement of the gas-liquid separation device.

[0061] Furthermore, the top of the housing 100 is also provided with a pressure test port 106 and a safety relief port 107, which facilitates the monitoring and control of the gas pressure inside the housing 100.

[0062] (1) During operation, when the hydrogen production equipment is running normally, the ultrasonic vibration component 700 and the heating component 600 in the gas-liquid separation device are in the closed state. The mixture of hydrogen / oxygen and electrolyte entering the gas-liquid separation device from the inlet 1013 passes through the first separation zone 200, the second separation zone 300 and the demister 105 in sequence and is then discharged from the outlet 102. The separated electrolyte enters the liquid collection zone 400.

[0063] (2) When the system monitors (referring to the detection system of the hydrogen production equipment) detects that the hydrogen content in oxygen increases, the ultrasonic vibration component 700 is immediately turned on and adjusted to a suitable frequency to clear the dissolved or mixed gas in the electrolyte. If the hydrogen content in oxygen decreases to the normal level after degassing, the ultrasonic vibration component 700 is turned off and the gas-liquid separation device is restored to the operating state in (1).

[0064] (3) If the system detects that the hydrogen content in oxygen does not decrease or even increases after the measures in (2), the heating component 600 is turned on again to heat the electrolyte in the separation device to an appropriate temperature. The electrolyte is simultaneously subjected to ultrasonic vibration and heating to remove dissolved or mixed gases in the electrolyte and reduce the solubility of gases in the electrolyte until the hydrogen content in oxygen in the system is restored to the normal level. Then the heating component 600 and the ultrasonic vibration component 700 are turned off, and the gas-liquid separation device is restored to the operating state in (1).

[0065] This invention provides a gas-liquid separation device that reduces the gas content in the electrolyte of water electrolysis for hydrogen production. The device includes a first separation zone 200 and a second separation zone 300. Through two-stage separation, more gas is separated from the electrolyte. This device improves the separation efficiency of the gas-liquid mixture and, through a heating component 600 and an ultrasonic vibration component 700, allows dissolved or mixed gases to escape again, solving the problem of excessive dissolved hydrogen / oxygen in the electrolyte escaping as impurities during electrolysis or separation.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production, characterized in that, include: The housing (100) is provided with an inlet pipe (101) for supplying a gas-liquid mixture into the housing (100), and the lower part of the housing (100) is a liquid collection area (400). The first separation zone (200) is installed in the housing (100). The first separation zone (200) includes a diversion assembly (201) for circumferentially diverting the inflowing gas-liquid mixture along the inlet pipe (101) and a baffle assembly (202) for changing the flow direction of the inflowing gas-liquid mixture from the horizontal direction to the vertical direction. The second separation zone (300) is disposed within the housing (100), and a rectifier coalescer (301) is installed in the second separation zone (300) for rectifying the gas-liquid mixture after passing through the first separation zone (200); A heating assembly (600) is installed below the electrolyte level in the collection area (400) for heating the electrolyte; Ultrasonic vibration assembly (700) for ultrasonically vibrating electrolyte.

2. The gas-liquid separation device according to claim 1, which can reduce the gas content in the electrolyte of water electrolysis for hydrogen production, is characterized in that, The diversion assembly (201) includes multiple diversion plates (2011) symmetrically arranged on the upper and lower parts of the inlet pipe (101) and inserted into the inner cavity of the inlet pipe (101) about the axis of symmetry of the inlet pipe (101), and multiple air outlets (2012) arranged on the inlet pipe (101). The diversion plates (2011) and air outlets (2012) are arranged alternately.

3. A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production according to claim 2, characterized in that, The inlet pipe (101) includes a first part (1011) and a second part (1012). An air inlet (1013) is provided at the front end of the first part (1011), and a plurality of air outlets (2012) are provided on the second part (1012). The flow divider (2011) includes a plurality of inclined flow dividers (2013) inclinedly arranged on the second part (1012) and two horizontal flow dividers (2014) arranged at the rear end of the second part (1012). A first flow channel is formed between the two inclined flow dividers (2013), and a second flow channel is formed between the horizontal flow dividers (2014) and between the horizontal flow dividers (2014) and the adjacent inclined flow dividers (2013).

4. The gas-liquid separation device according to claim 1, which can reduce the gas content in the electrolyte for hydrogen production by water electrolysis, is characterized in that, The baffle assembly (202) includes a baffle (2021) that changes the flow direction of the inflowing gas-liquid mixture from horizontal to vertical and a fastener (2022) for fixing the baffle (2021).

5. A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production according to claim 1, characterized in that, The rectifier coalescer (301) includes two fixed plates (302) and multiple corrugated plates (303). The two fixed plates (302) are arranged along the length of the housing (100), and the multiple corrugated plates (303) are evenly distributed and fixed between the two fixed plates (302). A gas flow channel (304) for gas-liquid mixture to pass through is formed between the two corrugated plates (303) in the vertical direction.

6. A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production according to claim 1, characterized in that, The gas-liquid separation device also includes a baffle assembly for isolating the electrolyte in the collection zone (400), the baffle assembly being installed below the electrolyte level in the collection zone (400).

7. A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production according to claim 6, characterized in that, The wave deflector assembly includes a first wave deflector (501) and a plurality of second wave deflectors (502) evenly distributed along the length of the shell (100). Both the first wave deflector (501) and the second wave deflector (502) include a plurality of staggered first through holes (504). The first wave deflector (501) is provided with a notch (506). The second wave deflector (502) is provided with a support hole (503) at its center. The heater (601) in the heating assembly (600) is provided with its front part on the notch (506) and its rear part is sleeved in a plurality of mutually parallel support holes (503).

8. A gas-liquid separation device for reducing the gas content in the electrolyte of water electrolysis for hydrogen production according to claim 1, characterized in that, The ultrasonic vibration assembly (700) includes an ultrasonic vibration component (701) and a first interface (702), wherein the ultrasonic vibration component (701) is mounted on the housing (100) through the first interface (702).

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