Floating ball type self-sealing gas-water separation drying device for producing hydrogen by electrolyzing water

Abstract

The utility model discloses a floating ball type self-sealing gas-water separation drying device for producing hydrogen by electrolyzing water, which comprises a cylinder body component consisting of an upper cylinder body, a lower cylinder body and a connecting flange, a sealing cover is arranged at the top of the upper cylinder body, a gas-water separation component is arranged in the upper cylinder body, and a water outlet and a water drainage component are arranged at the bottom of the lower cylinder body; the drainage assembly comprises a floating ball, a drainage pipe and a sealing gasket, the floating ball controls opening and closing of a drainage port along with water level changes, self-sealing and zero leakage are achieved, meanwhile, multiple sets of spiral water scraping strips which are vertically staggered are arranged on the inner wall of the lower barrel, residual liquid on the outer wall of the floating ball is comprehensively scraped, the weight of the floating ball is maintained, and normal drainage is guaranteed; the gas-water separation assembly adopts spirally arranged condensation pipes, and the gas drying efficiency is greatly improved through countercurrent condensate circulation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floating ball type self-sealing gas water separation drying device for electrolytic water hydrogen production. BACKGROUND

[0002] Electrolytic water hydrogen production is a kind of technology that water is decomposed into hydrogen and oxygen by using electric energy, and it is one of the main ways of green hydrogen production, and the technology has the advantages of zero carbon emission, product pure and the like.In the process of electrolytic water hydrogen production, the wet hydrogen generated by electrolytic cell needs to be subjected to gas water separation and drying treatment to avoid corrosion and other problems caused by liquid water or high humidity in downstream equipment.

[0003] The existing gas water separation and drying method includes mechanical cyclone separation, adsorption drying separation and the like, and the former has low separation efficiency for micron-sized liquid drops, the latter has high energy consumption, and the adsorbent powderization is easy to pollute hydrogen, so the condensing type separation device has more advantages, but the condensed liquid cannot be discharged in time in the condensing process, and the condensing and draining water is easy to cause gas leakage, and the liquid exists in the device for a long time, and the risk of gas mixing with liquid vapor again is easy to appear.

[0004] Therefore, it is necessary to invent a floating ball type self-sealing gas water separation drying device for electrolytic water hydrogen production to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] (I) Utility model purpose

[0006] To solve the technical problems in the background art, the utility model provides a floating ball type self-sealing gas water separation drying device for electrolytic water hydrogen production, which can automatically drain water and has good sealing performance.

[0007] (II) Technical scheme

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: a floating ball type self-sealing gas water separation drying device for electrolytic water hydrogen production, comprising a cylinder assembly, the cylinder assembly comprises an upper cylinder, a lower cylinder and a connecting flange;

[0009] The upper cylinder is provided with a sealing cover at the top, and the connecting flange is installed between the bottom of the upper cylinder and the top of the lower cylinder, and a gas water separation assembly for electrolytic water hydrogen production is further installed in the upper cylinder;

[0010] The lower cylinder is provided with a drain port at the bottom, and a drain assembly is further installed in the inside;

[0011] The drain assembly comprises a floating ball arranged in the inside of the lower cylinder, a drain pipe is further installed at the drain port, the drain port is matched with the drain pipe, and a sealing gasket is further arranged at the top of the drain pipe, the sealing gasket is in contact with the bottom surface of the floating ball to seal when not draining water, and the sealing gasket is separated from the floating ball when draining water.

[0012] The drainage assembly further comprises a plurality of water scraping strips arranged on the inner wall of the lower cylinder, and the water scraping edges of the plurality of water scraping strips are in contact with the outer wall of the floating ball, and the water scraping strips are arranged in an up-and-down staggered manner.

[0013] Preferably, the gas-water separation assembly comprises a plurality of gas inlet pipes arranged on the side of the connecting flange, a plurality of condensing pipes are arranged on the inner side of the upper cylinder, both ends of the plurality of condensing pipes are provided with fixing discs, and the fixing discs at both ends are sealingly fixed to the inner side of the upper cylinder, a gas discharge pipe is arranged in the middle of the sealing cover, and a condensate liquid outlet and a condensate liquid inlet are arranged on the outer wall of the upper cylinder at both sides, respectively, condensate liquid is introduced into the condensate liquid inlet and continuously discharged at the condensate liquid outlet, and gas is introduced into the plurality of condensing pipes through the gas inlet pipes and continuously discharged from the gas discharge pipe.

[0014] Preferably, the plurality of condensing pipes are arranged in a spiral manner, and the condensate liquid inlet and the condensate liquid outlet are arranged in an opposite manner, and the condensate liquid outlet is located above the condensate liquid inlet.

[0015] Preferably, the water scraping strips are arranged in two groups, and the overall water scraping area of the two groups of water scraping strips covers the outer wall of the floating ball, each group of water scraping strips is spiral-shaped, and the overall spiral direction of the two groups of water scraping strips is the same, and is from top to bottom.

[0016] Preferably, the water scraping strips are overall inclined surfaces, and the inclination degree of the front end inclined surface is greater than that of the rear end inclined surface, the upper section of the contact point between the water scraping strips and the floating ball is an arc surface, the lowest point of the arc surface is in contact with the outer wall of the floating ball, and a height difference of 10 cm is arranged between the two groups of water scraping strips.

[0017] Preferably, the floating ball is internally hollow, and the inner side of the sealing gasket is arc-shaped and is arc-shapedly matched with the bottom surface of the floating ball.

[0018] Compared with the prior art, the above technical scheme of the utility model has the beneficial effects that:

[0019] 1. The condensing pipes arranged in a spiral manner and the continuously circulating condensate liquid greatly increase the contact area and time of the gas and the condensing pipes, the water vapor in the gas is fully condensed in the spiral path, and the drying efficiency is significantly improved.

[0020] 2. The floating ball automatically controls the opening and closing of the drainage port through water level change: when the water level rises, the floating ball floats away from the sealing gasket to drain water; when the water level drops, the floating ball sinks and closely adheres to the sealing gasket, realizing zero-leakage sealing.

[0021] 3. The utility model discloses a two groups of staggered spiral water scraping strips cover the full circumference of the outer wall of the floating ball, when the water level rises and falls, automatically scrape the liquid attached to the outer wall of the floating ball, avoid the weight of the floating ball to increase and cause the drainage effect to reduce, and the water scraping strip located on the outer wall of the floating ball can keep the floating ball in the middle to a certain extent, prevent the floating ball from deviating when moving. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the skilled in the art better understand the technical scheme of the utility model, the following will be further introduced in detail to the utility model with the drawings.

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 It is the section structure schematic diagram of the utility model;

[0025] Figure 3 It is the air-water separation assembly partial structure schematic diagram of the utility model;

[0026] Figure 4 It is the Figure 2 Structure schematic diagram of part A of the utility model;

[0027] Figure 5 It is the drainage pipe structure schematic diagram of the utility model;

[0028] Figure 6 It is the water scraping strip installation structure schematic diagram of the utility model;

[0029] Figure 7 It is the water scraping strip section structure schematic diagram of the utility model.

[0030] Explanation of the drawings:

[0031] 1, cylinder assembly;11, upper cylinder;12, lower cylinder;13, connecting flange;14, drainage port;2, sealing cover;3, air-water separation assembly;31, gas inlet pipe;32, condenser pipe;33, fixed disc;34, gas discharge pipe;35, condensate outlet;36, condensate inlet;4, drainage assembly;41, floating ball;42, drainage pipe;43, sealing gasket;44, water scraping strip. DETAILED DESCRIPTION

[0032] In order to make the skilled in the art better understand the technical scheme of the utility model, the following will be further introduced in detail to the utility model with the drawings.

[0033] The utility model provides a kind of water drainage device, including cylinder assembly, sealing cover, air-water separation assembly and drainage assembly, it is characterized by: the air-water separation assembly is connected to the cylinder assembly, and the drainage assembly is connected to the air-water separation assembly. Figures 1-7The application discloses a floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water.

[0034] Specifically, the upper cylinder 11 is provided with a sealing cover 2 at the top and is provided with a connecting flange 13 between the bottom and the top of the lower cylinder 12; and the upper cylinder 11 is further provided with a gas-water separation assembly 3 for hydrogen production by electrolysis of water.

[0035] Specifically, the lower cylinder 12 is provided with a water outlet 14 at the bottom and is further provided with a water drainage assembly 4 inside.

[0036] In the embodiment, the upper cylinder 11 and the lower cylinder 12 are fixedly connected through the connecting flange 13 to ensure the sealing property; the sealing cover 2 is arranged at the top of the upper cylinder 11; and a gas discharge pipe 34 is arranged at the middle of the sealing cover 2.

[0037] With reference to Figure 2 , the water drainage assembly 4 comprises a floating ball 41 arranged inside the lower cylinder 12; a water drainage pipe 42 is further arranged at the water outlet 14; the water outlet 14 is adapted to the water drainage pipe 42; a sealing gasket 43 is further arranged at the top of the water drainage pipe 42; the sealing gasket 43 is in contact with the bottom surface of the floating ball 41 when no water is drained and is separated from the floating ball 41 when water is drained.

[0038] Specifically, the water drainage assembly 4 further comprises a plurality of water scraping strips 44 arranged on the inner wall of the lower cylinder 12; the water scraping edges of the plurality of water scraping strips 44 are in contact with the outer wall of the floating ball 41; and the opposite water scraping strips 44 are arranged in an up-and-down staggered mode.

[0039] In the embodiment, the water drainage pipe 42 is arranged at the bottom of the lower cylinder 12; the arc-shaped sealing gasket 43 is arranged at the water outlet 14; the floating ball 41 is arranged inside the lower cylinder 12; the buoyancy is designed to match the density of the condensed liquid; and two groups of spiral water scraping strips 44 are arranged in a 10 cm height difference staggered mode on the inner wall of the lower cylinder 12 and are in close contact with the outer wall of the floating ball 41.

[0040] With reference to Figures 1-3 , the gas-water separation assembly 3 comprises a plurality of gas inlet pipes 31 arranged on the side of the connecting flange 13; a plurality of condensing pipes 32 are arranged inside the upper cylinder 11; the two ends of the plurality of condensing pipes 32 are provided with fixed discs 33; the two upper and lower fixed discs 33 are sealingly fixed inside the upper cylinder 11; the gas discharge pipe 34 is arranged at the middle of the sealing cover 2; the upper and lower sides of the outer wall of the upper cylinder 11 are respectively provided with a condensed liquid outlet 35 and a condensed liquid inlet 36; the condensed liquid inlet 36 is connected to the condensed liquid and continuously discharges at the condensed liquid outlet 35; the gas enters the plurality of condensing pipes 32 through the gas inlet pipes 31 and continuously rises to be discharged from the gas discharge pipe 34.

[0041] Specifically, the plurality of condensing tubes 32 are arranged in a spiral, the condensate liquid inlet 36 is arranged opposite to the condensate liquid outlet 35, and the condensate liquid outlet 35 is located above the condensate liquid inlet 36.

[0042] In this embodiment, a plurality of condensing tubes 32 arranged in a spiral are installed in the upper cylinder body 11, and the two ends are sealed and fixed to the inner wall of the upper cylinder body 11 by the fixing disc 33. The gas inlet pipe 31 is uniformly distributed and penetrates through the connecting flange 13 and is communicated with the condensing tube 32. The condensate liquid inlet 36 and the condensate liquid outlet 35 are arranged on the upper and lower sides of the outer wall of the upper cylinder body 11, respectively, and the positions are opposite.

[0043] Referring to Figures 6-7 , the wiper strip 44 is provided with two groups, and the overall wiping area of the two groups of wiper strips 44 covers the outer wall of the floating ball 41, each group of wiper strips 44 is spiral, and the overall spiral direction of the two groups of wiper strips 44 is the same, and is from top to bottom.

[0044] Specifically, the wiper strip 44 is overall inclined, and the inclination of the front end is greater than that of the rear end, the contact point of the wiper strip 44 with the floating ball 41 is arc-shaped, the lowest point of the arc contacts the outer wall of the floating ball 41, and a height difference of 10 cm is provided between the two groups of wiper strips 44.

[0045] Specifically, the floating ball 41 is hollow, and the inner side of the sealing gasket 43 is arc-shaped and matched with the bottom arc of the floating ball 41.

[0046] In this embodiment, the wet hydrogen gas generated by electrolysis water enters the condensing tube 32 through the gas inlet pipe 31. The condensate liquid enters from the inlet 36 and forms a low-temperature surface on the outer wall of the condensing tube 32, so that the water vapor in the wet gas is condensed into liquid water, and the liquid water flows along the outer wall of the condensing tube 32 to the lower cylinder body 12. The dried hydrogen gas continues to rise and is finally discharged from the gas discharge pipe 34.

[0047] Specifically, when the liquid level in the lower cylinder body 12 rises, the floating ball 41 is lifted by the buoyancy, pushes the sealing gasket 43 away from the drain pipe 42, opens the drain outlet 14 to discharge the condensed water; after the liquid level drops, the floating ball 41 sinks, and the sealing gasket 43 is in close contact with the bottom surface of the floating ball 41, achieving self-sealing.

[0048] Specifically, during the lifting process of the floating ball 41, the two groups of spiral wiper strips 44 continuously wipe the outer wall of the floating ball to remove the attached water vapor. The inclined surface design of the wiper strip 44 guides the water to flow downward, avoiding secondary attachment. The water vapor attached to the outer wall of the floating ball 41 increases the overall weight of the floating ball 41, affecting the lifting effect of the floating ball 41, and further affecting the drainage effect of the device. The wiper strip 44 keeps the floating ball 41 in the central position, and the position will not be shifted when the floating ball 41 floats up and down.

[0049] In the embodiment, the spiral arrangement of the condensing pipe 32 increases the contact area of the gas and the condensate, combined with the continuous circulation of the condensate, significantly improves the water vapor condensation efficiency, and ensures the dryness of hydrogen. The flow direction of the condensate is countercurrent to the flow direction of the gas, which enhances the heat exchange effect.

[0050] Specifically, the arc-shaped matching design of the floating ball 41 and the sealing gasket 43 realizes dynamic sealing, and the drainage port 14 can be automatically opened and closed according to the liquid level without external power, which reduces energy consumption and maintenance cost. The lightweight design of the hollow floating ball 41 is sensitive to response and adapts to rapid changes in liquid level.

[0051] In the embodiment, the two groups of spiral wiper strips 44 are arranged in an upper and lower staggered manner and have a height difference, covering the entire circumference of the outer wall of the floating ball 41. This design can maintain the overall weight of the floating ball 41 unchanged, avoiding affecting the drainage effect of the device. The front end of the wiper strip 44 has a large inclination, which enhances the scraping force. The rear end has an arc design to reduce friction resistance and prolong the service life of the wiper strip 44. It is worth mentioning that the contact surface between the wiper strip 44 and the outer wall of the floating ball 41 is a smooth surface with small friction, which will not affect the up and down movement of the floating ball 41.

[0052] In the embodiment, the upper and lower cylinder are designed in a split manner to facilitate internal component maintenance. The condensing pipe 32 is fixed by the fixing disc 33 to avoid leakage risk caused by vibration. The spiral direction of the wiper strip 44 is consistent with the flow direction of the condensate, reducing the disturbance of turbulence to the movement of the floating ball 41.

[0053] Specifically, the condensate can be recycled, reducing water consumption. The automatic drainage mechanism avoids manual intervention and is suitable for continuous electrolytic water hydrogen production systems.

[0054] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above figures and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water, characterized by: It includes a cylinder assembly (1), the cylinder assembly (1) includes an upper cylinder (11), a lower cylinder (12) and a connecting flange (13); The upper cylinder (11) is provided with a sealing cover (2) at the top, and the connecting flange (13) is installed between the bottom of the upper cylinder (11) and the top of the lower cylinder (12), and the gas-water separation assembly (3) for electrolytic water hydrogen production is also installed in the upper cylinder (11); The lower cylinder (12) is provided with a drain port (14) at the bottom, and a drainage assembly (4) is also installed inside; The drainage assembly (4) includes a float ball (41) arranged inside the lower cylinder (12), a drain pipe (42) is also installed at the drain port (14), the drain port (14) is matched with the drain pipe (42), and the top of the drain pipe (42) is also provided with a sealing gasket (43), the sealing gasket (43) is in contact with the bottom surface of the float ball (41) when not draining, and is separated from the float ball (41) when draining; The drainage assembly (4) also includes a plurality of water scraping strips (44) arranged on the inner wall of the lower cylinder (12), the water scraping edges of the plurality of water scraping strips (44) are in contact with the outer wall of the float ball (41), and the water scraping strips (44) are arranged alternately upward and downward.

2. A floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water according to claim 1, characterized in that: The gas-water separation assembly (3) includes a plurality of gas inlet pipes (31) installed on the side of the connecting flange (13), a plurality of condensing pipes (32) are installed inside the upper cylinder (11), both ends of the plurality of condensing pipes (32) are provided with fixing discs (33), and both ends of the fixing discs (33) are sealingly fixed inside the upper cylinder (11), a gas discharge pipe (34) is arranged in the middle of the sealing cover (2), and a condensate outlet (35) and a condensate inlet (36) are arranged on the outer wall of the upper cylinder (11) on both sides, condensate is introduced into the condensate inlet (36) and continuously discharged at the condensate outlet (35), and gas enters the plurality of condensing pipes (32) through the gas inlet pipe (31) and continuously rises to be discharged from the gas discharge pipe (34).

3. A floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water according to claim 2, characterized in that: The plurality of condensing pipes (32) are arranged in a spiral, and the condensate inlet (36) and the condensate outlet (35) are arranged oppositely, and the condensate outlet (35) is located above the condensate inlet (36).

4. A floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water according to claim 1, characterized in that: The water scraping strips (44) are provided with two groups, and the overall water scraping area of the two groups of water scraping strips (44) covers the outer wall of the float ball (41) once, each group of water scraping strips (44) is spiral-shaped, and the overall spiral direction of the two groups of water scraping strips (44) is the same, and is from top to bottom.

5. A floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water according to claim 4, characterized in that: The water scraping strips (44) are overall inclined surfaces, and the inclination of the front end is greater than that of the rear end, the contact point of the water scraping strips (44) and the float ball (41) is an arc surface, the lowest point of the arc surface contacts the outer wall of the float ball (41), and a height difference of 10 cm is provided between the two groups of water scraping strips (44).

6. A floating ball type self-sealing gas-water separation and drying device for hydrogen production by electrolysis of water according to claim 1 characterized in that: The float ball (41) is a hollow structure, the inner side of the sealing gasket (43) is arc-shaped and matched with the bottom arc of the float ball (41).

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