CN215916782U

CN215916782U - Honeycomb bionic structure steam-water separator with automatic hydrogen discharge valve

Info

Publication number: CN215916782U
Application number: CN202122137296.XU
Authority: CN
Inventors: 王滨; 郑为启; 李贞春
Original assignee: Jiangsu Hydrogen Port New Energy Technology Co ltd
Current assignee: Jiangsu Hydrogen Port New Energy Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-01
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a honeycomb bionic structure steam-water separator with an automatic hydrogen discharge valve, and belongs to the technical field of steam-water separation. Specifically included casing, valve body, gas-distributing pipe and separator block, the valve body is located the casing lower extreme, the gas-distributing pipe with separator block is located inside the casing, just the gas-distributing pipe is located the separator block lower extreme, separator block includes support column, helical blade and a plurality of honeycomb structure, the support column is located casing central point puts, the helical blade outward flange with shells inner wall welding links to each other, the helical blade inward flange with support column outer surface welding links to each other, honeycomb structure evenly distributed is in helical blade's path passageway, just the honeycomb structure with helical blade's the perpendicular welding of passageway inner wall links to each other. According to the utility model, the honeycomb structure is additionally arranged in the shell, so that the contact area of water vapor is increased, and the condensation probability is improved.

Description

Honeycomb bionic structure steam-water separator with automatic hydrogen discharge valve

Technical Field

The utility model relates to the technical field of steam-water separation, in particular to a honeycomb bionic structure steam-water separator with an automatic hydrogen discharge valve.

Background

In the fuel cell industry, water in the PEMFC is generated along with the operation of the fuel cell, and the generated water is partially carried out of the fuel cell stack by the gas flow, partially discharged from the cathode tail, and partially recycled to the anode. Usually, the anode of the fuel cell system needs to be provided with water, and after the mixed gas is discharged from the stack, a lot of liquid water is generated in the circulating gas of the anode due to condensation caused by temperature reduction. If the water-vapor separation and the liquid water discharge are not carried out on the mixed steam, a great deal of liquid water enters the galvanic pile along with the mixed steam, so that the anode is flooded; in addition, the accumulated water in the anode circulation can also increase the working load of the hydrogen circulation pump or the ejector, reduce the performance of the hydrogen circulation pump or the ejector and even cause faults; meanwhile, when the fuel cell works, nitrogen in cathode air of the fuel cell gradually migrates to the anode, so that the purity of anode hydrogen is reduced, and therefore the anode needs to remove gas in stages to ensure the purity of anode circulating hydrogen; therefore, it is necessary to use a gas-water separator in the fuel cell system.

However, most of the existing technologies adopt an internal blade structure or a baffle type multi-cavity structure, liquid water is formed by collision of water molecules or small liquid drops with blades or wall surfaces during movement of hydrogen airflow, the liquid water is condensed at the bottom, a liquid level sensor is used for detecting the water level condition and the water level condition is discharged through a valve, but the blade structure or the multi-cavity structure has a small water vapor contact surface and can only intercept most of liquid water, most of saturated water vapor still enters a hydrogen circulating pump or an ejector for condensation, and the two are still damaged correspondingly under the freezing condition.

SUMMERY OF THE UTILITY MODEL

The utility model provides a honeycomb bionic structure steam-water separator with an automatic hydrogen discharge valve, which solves the problem that a steam-water separation device cannot intercept most of liquid water due to an excessively small steam contact surface.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a take honeycomb biomimetic structure catch water of automatic hydrogen valve of arranging, includes casing, valve body, gas distribution pipe and separator assembly, the valve body is located the casing lower extreme, the gas distribution pipe with separator assembly is located inside the casing, just the gas distribution pipe is located the separator assembly lower extreme, separator assembly includes support column, helical blade and a plurality of honeycomb structure, the support column is located casing central point puts, the helical blade outward flange with shells inner wall welding links to each other, the helical blade inward flange with support column surface welding links to each other, honeycomb structure evenly distributed is in helical blade's the path passageway, just the honeycomb structure with helical blade's the perpendicular welding of passageway inner wall links to each other.

Preferably, the upper end of the shell is provided with a hydrogen discharge port for discharging hydrogen, the outer wall of the shell close to the lower end is provided with a hydrogen inlet for inputting hydrogen, and the hydrogen inlet is communicated with the gas distribution pipe.

Preferably, the gas distribution pipe is of an annular structure, the gas distribution pipe is attached to the inner wall of the shell, and the gas distribution pipe is not in contact with the bottom of the shell.

Preferably, the gas distribution pipe comprises a plurality of first small holes and second small holes, the first small holes are located on the wall surface of the upper end of the gas distribution pipe, and the second small holes are located on the wall surface of the lower end of the gas distribution pipe.

Preferably, the bottom of the shell is provided with a connector, the connector is connected with the valve body, and the valve body comprises a heating exhaust valve or a heating drain valve.

Preferably, the bottom of the shell is provided with a concave surface for collecting condensed liquid.

Preferably, a liquid receiving plate is arranged above the concave surface, the lower end of the liquid receiving plate corresponds to the interface, and a support is arranged between the liquid receiving plate and the concave surface and used for supporting the liquid receiving plate.

Preferably, a drainage groove is formed above the liquid receiving plate, the upper end of the drainage groove is connected with the bottom end of the helical blade, and an outlet at the lower end of the drainage groove corresponds to the upper surface of the liquid receiving plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the honeycomb structure in the separation assembly is uniformly welded in the channel of the helical blade, so that the contact surface is larger, compared with a cavity structure and a blade structure, water vapor can more easily touch the honeycomb wall surface, the condensation probability of the water vapor is increased, and the honeycomb structure is directly welded with the inner wall of the shell and the helical blade, so that the heat emitted by tail gas can be transferred to the shell through the honeycomb structure, the water vapor is more easily condensed, and the condensation probability is increased.

2. According to the utility model, the drainage groove is additionally arranged at the lower end of the helical blade, so that the condensed liquid level can accurately fall onto the liquid receiving plate and is collected to the bottom of the shell by the liquid receiving plate, the collection speed of liquid water is increased, and the working efficiency of the gas-liquid separator is improved.

3. According to the utility model, the annular gas distribution pipe with the first small hole and the second small hole is additionally arranged at the bottom of the shell, so that the hydrogen of liquid water of a dopant can be rapidly and preliminarily separated after entering the gas-liquid separator, the separation efficiency is improved, and the hydrogen overflowing the gas distribution pipe is more uniformly distributed in the shell through the plurality of first small holes.

4. The utility model combines the hydrogen discharge and the drain valve into a whole, thereby not only saving the cost, but also improving the working efficiency of the fuel cell system.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic diagram of the steam-water separator of the present invention;

FIG. 2 is a schematic view of the internal structure of the steam-water separator of the present invention;

FIG. 3 is a side sectional view of the steam separator of the present invention;

FIG. 4 is a schematic view of a separator assembly according to the present invention;

FIG. 5 is a schematic structural view of a honeycomb structure of the present invention;

FIG. 6 is a schematic view of the bottom of the housing of the present invention;

reference numbers in the figures: 1. a housing; 101. a hydrogen discharge port; 102. a hydrogen inlet; 103. an interface; 104. a concave surface; 2. A gas distributing pipe; 201. a first aperture; 202. a second aperture; 3. a separation assembly; 301. a support pillar; 302. a helical blade; 303. a honeycomb structure; 4. a valve body; 5. a liquid receiving plate; 6. a support; 7. and (4) a drainage groove.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-6, a honeycomb bionic structure steam-water separator with an automatic hydrogen discharge valve comprises a shell 1, a valve body 4, a gas distribution pipe 2 and a separation component 3, wherein the valve body 4 is positioned at the lower end of the shell 1, the bottom of the shell 1 is provided with a connector 103, the connector 103 is connected with the valve body 4, the valve body 4 comprises a heating exhaust valve or a heating drain valve for discharging redundant gas and moisture, the gas distribution pipe 2 and the separation component 3 are positioned inside the shell 1, the gas distribution pipe 2 is positioned at the lower end of the separation component 3, the gas distribution pipe 2 is in an annular structure, the gas distribution pipe 2 is fixedly attached to the inner wall of the shell 1, the gas distribution pipe 2 is not in contact with the bottom of the shell 1, the gas distribution pipe 2 comprises a plurality of first small holes 201 and second small holes 202, the first small holes 201 are positioned on the upper end wall surface of the gas distribution pipe 2 and are used for overflowing hydrogen and water vapor to enter the shell 1, the second small holes 202 are positioned on the lower end wall surface of the gas distribution pipe 2, the separating component 3 comprises a supporting column 301, a spiral blade 302 and a plurality of honeycomb structures 303, the supporting column 301 is located at the center of the shell 1, the outer edge of the spiral blade 302 is connected with the inner wall of the shell 1 in a welding manner, the inner edge of the spiral blade 302 is connected with the outer surface of the supporting column 301 in a welding manner, the honeycomb structures 303 are uniformly distributed in a path channel of the spiral blade 302, the honeycomb structures 303 are vertically connected with the inner wall of the channel of the spiral blade 302 in a welding manner, the honeycomb structures 303 are used for condensing water vapor doped in hydrogen into liquid water, the upper end of the shell 1 is provided with a hydrogen discharge port 101 used for discharging hydrogen, the outer wall close to the lower end of the shell 1 is provided with a hydrogen inlet 102 used for inputting hydrogen, the hydrogen inlet 102 is communicated with the gas distribution pipe 2, the bottom of the shell 1 is provided with a concave surface 104 used for collecting condensed liquid, and a liquid receiving plate 5 is arranged above the concave surface 104, connect the liquid board 5 lower extreme to correspond with interface 103, connect to be equipped with support 6 between liquid board 5 and the concave surface 104 for support connects liquid board 5, connects liquid board 5 top to be equipped with a drainage groove 7, and drainage groove 7 upper end links to each other with helical blade 302 bottom, and drainage groove 7 lower extreme exit corresponds and connects liquid board 5 upper surface.

When the hydrogen gas separating device is used in a fuel cell system, hydrogen gas mixed with liquid water and saturated water vapor is injected from the hydrogen discharge port 101, then flows to the gas distribution pipe 2, flows and wanders in the annular gas distribution pipe 2, the liquid water is separated from the water through the second small hole 202 on the lower end wall surface of the gas distribution pipe 2 and is collected on the concave surface 104 at the bottom of the shell 1, the hydrogen gas containing the water vapor overflows the gas distribution pipe 2 through the first small hole 201 on the upper end wall surface of the gas distribution pipe 2 and enters the shell 1, then flows upwards along the helical blade 302 in the separating assembly 3, passes through the plurality of honeycomb structures 303 arranged in the channel of the helical blade 302 in the flowing process, the water vapor is condensed into liquid water when passing through the honeycomb structures 303 and returns back and slides down along the wall of the helical blade 302, and the condensed liquid water is guided to the liquid receiving plate 5 through the drainage groove 7 at the lower end of the helical blade 302, the liquid water is collected and slipped onto the concave surface 104 below the shell 1 along the liquid receiving plate 5, the liquid water collected at the bottom of the shell 1 flows into the valve body 4 below, the liquid water is discharged out of the fuel cell system through the heating drain valve or the heating exhaust valve, and part of hydrogen and nitrogen can be discharged simultaneously during water discharging, so that the hydrogen discharging and the water discharging are carried out simultaneously, and the cost is saved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a take honeycomb biomimetic structure catch water of automatic hydrogen valve of arranging which characterized in that: including casing, valve body, gas distribution pipe and separator assembly, the valve body is located the casing lower extreme, the gas distribution pipe with separator assembly is located inside the casing, just the gas distribution pipe is located the separator assembly lower extreme, separator assembly includes support column, helical blade and a plurality of honeycomb structure, the support column is located casing central point puts, the helical blade outward flange with the shells inner wall welding links to each other, the helical blade inward flange with support column outer surface welding links to each other, honeycomb structure evenly distributed is in helical blade's the path passageway, just the honeycomb structure with helical blade's the perpendicular welding of passageway inner wall links to each other.

2. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 1, characterized in that: the upper end of the shell is provided with a hydrogen discharge port for discharging hydrogen, the outer wall of the shell close to the lower end is provided with a hydrogen inlet for inputting hydrogen, and the hydrogen inlet is communicated with the gas distribution pipe.

3. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 1, characterized in that: the gas distribution pipe is of an annular structure, is attached to the inner wall of the shell and does not contact with the bottom of the shell.

4. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 3, characterized in that: the gas distribution pipe comprises a plurality of first small holes and second small holes, the first small holes are located on the wall surface of the upper end of the gas distribution pipe, and the second small holes are located on the wall surface of the lower end of the gas distribution pipe.

5. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 1, characterized in that: the bottom of the shell is provided with a connector, the connector is connected with the valve body, and the valve body comprises a heating exhaust valve or a heating drain valve.

6. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 5, characterized in that: the bottom of the shell is provided with a concave surface for collecting condensed liquid.

7. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 6, characterized in that: and a liquid receiving plate is arranged above the concave surface, the lower end of the liquid receiving plate corresponds to the interface, and a support is arranged between the liquid receiving plate and the concave surface and used for supporting the liquid receiving plate.

8. The honeycomb bionic structure steam-water separator with the automatic hydrogen exhaust valve according to claim 7, characterized in that: a drainage groove is formed in the upper portion of the liquid receiving plate, the upper end of the drainage groove is connected with the bottom end of the spiral blade, and an outlet at the lower end of the drainage groove corresponds to the upper surface of the liquid receiving plate.