CN211530094U - Vertical fuel cell hydrogen and air mixing and liquid phase storage device - Google Patents

Abstract

The utility model provides a vertical fuel cell hydrogen and air mixing and liquid phase storage device, which solves the problems of fuel cell tail gas treatment and the like, it comprises a gas-water separator, wherein a hydrogen inlet is connected with a waste gas hydrogen inlet end through a first electromagnetic valve, an air inlet is connected with a residual air inlet end through a second electromagnetic valve, the exhaust port of the gas-water separator is connected with the exhaust end of the tail gas through a filter, the water outlet is connected with the liquid inlet of the liquid storage tank, the liquid outlet of the liquid storage tank is connected with the discharge end through a third electromagnetic valve, and a liquid level monitoring unit and/or a temperature detection unit are arranged in the liquid storage tank, the liquid level monitoring unit and the temperature detection unit are both connected with a control system, and the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are all connected with the control system, the gas-water separator comprises a separation shell with an inner cavity, and a static mixing unit is arranged in the separation shell. The utility model has the advantages of harmless treatment of tail gas, fixed-point liquid discharge and the like.

Description

Vertical fuel cell hydrogen and air mixing and liquid phase storage device

Technical Field

The utility model belongs to the technical field of fuel cell tail gas treatment, concretely relates to rectilinear fuel cell hydrogen and air mixture and liquid phase memory ware.

Background

A hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electrical energy. The basic principle is the reverse reaction of electrolyzed water, hydrogen and oxygen are supplied to the anode and cathode respectively, and after the hydrogen diffuses out through the anode and reacts with the electrolyte, electrons are released to reach the cathode through an external load. At present, hydrogen fuel cells are mainly applied to the field of automobile power, namely, automobiles using hydrogen as an energy source react hydrogen or hydrogen-containing substances with oxygen in air in the fuel cells to generate electric power to drive electric motors, and the electric motors drive the automobiles. The greatest benefit of using hydrogen as energy is that it reacts with oxygen in the air, only water vapor is generated and discharged, and the problem of air pollution caused by the traditional gasoline vehicle is effectively reduced. However, in practical applications, the residual hydrogen is also required to be discharged as tail gas in time when the residual hydrogen is not required to be recycled into the stack. According to the physicochemical property of hydrogen, the hydrogen needs to be subjected to harmless treatment; in addition, although the water produced by the fuel cell has no environmental pollution, in extremely cold weather, if the water is randomly discharged, the ground is easy to freeze and wet and slippery, and potential safety hazards are caused.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a fuel cell automobile exhaust gas treatment device [201610339287.X ], which includes a hydrogen gas pipe, an air pipe, an exhaust gas mixing and exhausting pipe, a cylinder; one end of the hydrogen pipeline is a hydrogen inlet which is arranged outside the cylinder body; the other end is provided with a hydrogen gas outlet which is arranged in the cylinder body; one end of the air pipeline is an air inlet, and the other end of the air pipeline is provided with an air outlet; the hydrogen pipeline and the air pipeline are arranged at the first end of the cylinder body, and the tail gas mixing exhaust pipe is arranged at the second end of the cylinder body; the first end of the tail gas mixing exhaust pipe is a mixed gas inlet which is arranged in the cylinder body; the distance between the mixed gas inlet and the second end of the cylinder is set; and a mixed gas exhaust port is arranged at the second end of the tail gas mixed exhaust pipe and is arranged outside the cylinder body.

The scheme solves the problem of harmless treatment of the hydrogen fuel cell tail gas to a certain extent, but the scheme still has a plurality of defects, such as inconvenience in centralized discharge of water generated after treatment and the like.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a vertical fuel cell hydrogen and air mixture and liquid phase storage ware of reasonable in design, concentrated drainage.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the vertical fuel cell hydrogen and air mixing and liquid phase storage device comprises a gas-water separator, wherein the gas-water separator is respectively provided with a hydrogen inlet, an air inlet, an exhaust port and a water outlet, the hydrogen inlet is connected with a waste gas hydrogen inlet end through a first electromagnetic valve, the air inlet is connected with a residual air inlet end through a second electromagnetic valve, the exhaust port of the gas-water separator is connected with a tail gas exhaust end through a filter, the water outlet of the gas-water separator is connected with a liquid inlet of a liquid storage tank, the liquid outlet of the liquid storage tank is connected with a discharge end through a third electromagnetic valve, a liquid level monitoring unit and/or a temperature detection unit are arranged in the liquid storage tank, the liquid level monitoring unit and the temperature detection unit are connected with a control system, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are connected with the control system, the gas-water separator comprises a separation shell, the separation shell is internally provided with a static mixing unit which can separate the inner cavity into an upper cavity and a lower cavity, the hydrogen inlet and the air inlet are respectively arranged on one side of the lower end of the separation shell and are communicated with the lower cavity, the exhaust port is arranged at the upper end of the separation shell and is communicated with the upper cavity, and the water outlet is arranged at the lower end of the separation shell and is communicated with a temporary liquid storage chamber formed below the lower cavity. The hydrogen which is not completely reacted in the tail gas is mixed with the air through the gas-water separator, and the generated water is separated and stored and then is treated in a centralized manner, so that the wet and slippery road caused by random emission is avoided.

In the above vertical fuel cell hydrogen and air mixing and liquid phase storage, the temperature detection unit is a temperature sensor arranged in the liquid storage tank, the temperature sensor is connected with the control system, and the control system is connected with a heat tracing device arranged in the liquid storage tank. Through the water heating of heat tracing device in to the liquid storage tank, avoid cold weather to freeze the jam.

In the above vertical fuel cell hydrogen and air mixing and liquid phase storage, the liquid level monitoring unit is a liquid level meter arranged in the liquid storage tank, and the liquid level meter is connected with the control system. The liquid level meter monitors the water amount in the liquid storage tank at any time and is matched with the control system for drainage.

In the above vertical fuel cell hydrogen and air mixing and liquid phase storage, the static mixing unit is an SV type static mixing unit formed by a plurality of horizontal corrugated plate groups and a plurality of vertical corrugated plate groups which are alternately distributed in sequence from top to bottom, and the circumferential outer side of the static mixing unit is fixedly arranged on the circumferential inner wall of the separation shell. The SV type static mixing unit mixes hydrogen gas with oxygen gas in the air sufficiently to reduce the hydrogen gas content and the water vapor content in the exhaust gas of the exhaust port.

In the above vertical fuel cell hydrogen and air mixing and liquid phase storage, the horizontal corrugated plate group comprises a plurality of horizontal corrugated plates which are horizontally arranged and are sequentially distributed from top to bottom, and one ends of the horizontal corrugated plates are all fixedly arranged on the circumferential inner wall of the separation shell; the vertical corrugated plate group comprises a plurality of vertical corrugated plates which are vertically arranged on the same horizontal plane, and one ends of the vertical corrugated plates are fixedly arranged on the circumferential inner wall of the separation shell. The horizontal corrugated plate groups and the vertical corrugated plate groups are alternately arranged, so that water is fully filtered and concentrated into the lower cavity.

In the above vertical fuel cell hydrogen and air mixing and liquid phase accumulator, the separation casing is cylindrical, and has an upper throat portion at the upper end thereof, and the exhaust port is provided at the upper throat portion, and has a lower throat portion at the lower end thereof, and the drain port is provided at the lower throat portion. The upper and lower necking parts facilitate concentrated discharge of gas and temporary concentrated storage of liquid, respectively.

In the above vertical fuel cell hydrogen and air mixing and liquid phase storage, the temporary liquid storage chamber is formed inside the lower necking portion in the circumferential direction, and the exhaust port and the water discharge port are arranged up and down in correspondence along the central axis of the separation case. When the gas-water separator is installed, the exhaust port and the water outlet which are positioned on the same axis are beneficial to the insertion assembly of pipelines.

In the above vertical fuel cell hydrogen and air mixing and liquid phase storage, one side of the lower end of the separation shell is provided with a hydrogen pipe and an air pipe which are arranged in parallel and extend into the lower cavity of the separation shell, and the hydrogen inlet is formed at one end of the hydrogen pipe, the other end of the hydrogen pipe is provided with a hydrogen through hole positioned in the lower cavity, the air inlet is formed at one end of the air pipe, and the other end of the air pipe is provided with an air through hole positioned in the lower cavity. The hydrogen pipe and the air pipe are inserted into the lower cavity, the air and the hydrogen are mixed in the lower cavity, and the residual hydrogen is consumed.

Compared with the prior art, the utility model has the advantages of: innocent treatment of hydrogen which is not completely reacted in the fuel cell is carried out, and the content of hydrogen discharged from an exhaust port is reduced; water generated by the gas-water separator is stored in the liquid storage tank and is discharged in a centralized manner, so that road skidding caused by random discharge is avoided; a temperature sensor and a heat tracing device are arranged in the liquid storage tank, so that the liquid phase storage can work normally in cold weather.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the gas-water separator of the present invention;

fig. 3 is a schematic structural view of a horizontal corrugated plate group according to the present invention;

fig. 4 is a schematic structural view of a vertical corrugated plate group according to the present invention;

in the figure, a gas-water separator 1, a hydrogen inlet 11, an air inlet 12, an exhaust port 13, a water discharge port 14, a hydrogen pipe 15, an air pipe 16, a hydrogen through hole 17, an air through hole 18, a first electromagnetic valve 2, an exhaust gas-hydrogen inlet port 21, a second electromagnetic valve 3, a residual air inlet port 31, a filter 4, an exhaust gas evacuation port 41, a liquid storage tank 5, a liquid inlet 51, a liquid outlet 52, a liquid level monitoring unit 53, a temperature detection unit 54, a third electromagnetic valve 6, a discharge port 61, a control system 7, a temperature sensor 71, a heat tracing device 72, a liquid level meter 73, a separation housing 8, an inner cavity 81, an upper cavity 82, a lower cavity 83, a temporary liquid storage chamber 84, an upper necking portion 85, a lower necking portion 86, a static mixing unit 9, a horizontal corrugated plate group 91, a vertical corrugated plate group 92, an SV type static mixing unit 93.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, the vertical fuel cell hydrogen and air mixing and liquid phase storage device comprises a gas-water separator 1, wherein the gas-water separator 1 is respectively provided with a hydrogen inlet 11, an air inlet 12, an exhaust port 13 and a water outlet 14, the hydrogen inlet 11 is connected with an exhaust gas hydrogen inlet port 21 through a first electromagnetic valve 2, the air inlet 12 is connected with a residual air inlet port 31 through a second electromagnetic valve 3, the exhaust port 13 of the gas-water separator 1 is connected with an exhaust gas exhaust port 41 through a filter 4, the water outlet 14 of the gas-water separator 1 is connected with a liquid inlet 51 of a liquid storage tank 5, a liquid outlet 52 of the liquid storage tank 5 is connected with a discharge port 61 through a third electromagnetic valve 6, a liquid level monitoring unit 53 and/or a temperature detecting unit 54 are/is arranged in the liquid storage tank 5, and the liquid level monitoring unit 53 and the, the first electromagnetic valve 2, the second electromagnetic valve 3 and the third electromagnetic valve 6 are all connected with the control system 7, the gas-water separator 1 comprises a separation shell 8 which is provided with an inner cavity 81 and is in a vertically-arranged cylindrical structure, a static mixing unit 9 which can separate the inner cavity 81 into an upper cavity 82 and a lower cavity 83 is arranged in the separation shell 8, a hydrogen inlet 11 and an air inlet 12 are respectively arranged on one side of the lower end of the separation shell 8 and are communicated with the lower cavity 83, an exhaust port 13 is arranged at the upper end of the separation shell 8 and is communicated with the upper cavity 82, and a water outlet 14 is arranged at the lower end of the separation shell 8 and is communicated with a temporary liquid storage chamber 84 formed below the lower cavity 83. Hydrogen and air enter the gas-water separator 1 through the waste gas hydrogen inlet end 21, the air enters the gas-water separator 1 through the residual air inlet end 31, the residual hydrogen is fully mixed and consumed in the inner cavity 81, and then the generated water is intensively stored in the liquid storage tank 5 and is discharged under the control of the control system 7.

Specifically, the temperature detecting unit 54 is a temperature sensor 71 disposed in the liquid storage tank 5, the temperature sensor 71 is connected with the control system 7, and the control system 7 is connected with a heat tracing device 72 disposed in the liquid storage tank 5. When the temperature sensor 71 detects that the temperature is lower than 0 ℃ in cold weather, the control system 7 controls the heat tracing device 72 to work to heat the water in the liquid storage tank 5 so as to avoid the icing in the tank.

Further, the level monitoring unit 53 is a level gauge 73 disposed within the liquid storage tank 5, and the level gauge 73 is connected to the control system 7. The liquid level meter 73 can master the water quantity in the liquid storage tank 5 at any time, and an operator can conveniently judge the condition in the liquid storage tank 5.

Further, the static mixing unit 9 is an SV type static mixing unit 93 formed by alternately distributing a plurality of horizontal corrugated plate groups 91 and a plurality of vertical corrugated plate groups 92 in sequence from top to bottom, and the circumferential outer side of the static mixing unit 9 is fixedly disposed on the circumferential inner wall of the separation housing 8. The horizontal corrugated plate group 91 and the plurality of vertical corrugated plate groups 92 in the static mixing unit 9 prolong the gas movement distance, thereby accelerating the water vapor condensation and ensuring the full mixing reaction of the hydrogen and the oxygen.

Furthermore, the horizontal corrugated plate group 91 comprises a plurality of horizontal corrugated plates 94 which are horizontally arranged and are sequentially distributed from top to bottom, and one ends of the horizontal corrugated plates 94 are fixedly arranged on the circumferential inner wall of the separation shell 8; the vertical corrugated plate group 92 comprises a plurality of vertical corrugated plates 95 which are vertically arranged and are arranged on the same horizontal plane, and one ends of the vertical corrugated plates 95 are fixedly arranged on the circumferential inner wall of the separation shell 8. The multi-layer horizontal corrugated plate 94 and the vertical corrugated plate 95 are stacked to increase the amount of water vapor condensation, thereby reducing the water vapor content in the exhaust port 13.

In addition, the separation casing 8 is cylindrical, the upper end of the separation casing 8 has an upper throat 85, the exhaust port 13 is provided in the upper throat 85, the lower end of the separation casing 8 has a lower throat 86, and the drain port 14 is provided in the lower throat 86. The upper and lower throats 85, 86 are spherical heads to facilitate the concentration of gas and liquid.

Meanwhile, the temporary reservoir 84 is formed circumferentially inside the lower throat portion 86, and the air outlet 13 and the water outlet 14 are disposed up and down along the central axis of the separation case 8. After the gas-water separator 1 is installed, the exhaust port 13 and the water discharge port 14 are located on the same vertical line.

It can be seen that the separation case 8 has a hydrogen pipe 15 and an air pipe 16 arranged in parallel with each other on one side of the lower end thereof and extending into the lower cavity 83 of the separation case, and a hydrogen inlet 11 is formed at one end of the hydrogen pipe 15, the other end of the hydrogen pipe 15 has a hydrogen through hole 17 located in the lower cavity 83, an air inlet 12 is formed at one end of the air pipe 16, and the other end of the air pipe 16 has an air through hole 18 located in the lower cavity 83. The hydrogen pipe 15 and the air pipe 16 are transversely disposed in the lower chamber 83 to mix hydrogen and air in the lower chamber 83.

In summary, the principle of the present embodiment is: the hydrogen input from the hydrogen inlet 11 and the air inlet 12 is fully reacted with the oxygen in the air through the gas-water separator 1, the water vapor is fully separated by the static mixing unit 9 in the gas-water separator 1, the generated water enters the liquid storage tank 5 through the water outlet, and the liquid outlet 52 of the liquid storage tank 5 is controlled by the third electromagnetic valve 6 to be opened and closed to discharge the liquid, so that the wet and slippery road caused by the discharge anywhere is avoided.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the gas-water separator 1, the hydrogen inlet 11, the air inlet 12, the exhaust port 13, the water discharge port 14, the hydrogen pipe 15, the air pipe 16, the hydrogen through hole 17, the air through hole 18, the first electromagnetic valve 2, the exhaust gas hydrogen inlet port 21, the second electromagnetic valve 3, the residual air inlet port 31, the filter 4, the exhaust gas exhaust port 41, the liquid storage tank 5, the liquid inlet 51, the liquid outlet 52, the liquid level monitoring unit 53, the temperature detecting unit 54, the third electromagnetic valve 6, the exhaust port 61, the control system 7, the temperature sensor 71, the heat tracing device 72, the liquid level meter 73, the separation housing 8, the inner chamber 81, the upper chamber 82, the lower chamber 83, the temporary liquid storage chamber 84, the upper choke portion 85, the lower choke portion 86, the static mixing unit 9, the horizontal corrugated plate group 91, the vertical corrugated plate group 92, the SV type static mixing unit 93, the horizontal corrugated plate 94, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (8)

1. The utility model provides a vertical fuel cell hydrogen mixes and liquid phase memory with air, includes deareator (1), deareator (1) on have hydrogen entry (11), air inlet (12), gas vent (13) and outlet (14) respectively, hydrogen entry (11) link to each other through first solenoid valve (2) and waste gas hydrogen entry end (21), air inlet (12) link to each other through second solenoid valve (3) and residual air entry end (31), just gas vent (13) of deareator (1) link to each other through filter (4) and tail gas evacuation end (41), its characterized in that, outlet (14) of deareator (1) link to each other with inlet (51) of liquid storage pot (5), liquid outlet (52) of liquid storage pot (5) link to each other through third solenoid valve (6) and discharge end (61), and a liquid level monitoring unit (53) and/or a temperature detection unit (54) are/is arranged in the liquid storage tank (5), the liquid level monitoring unit (53) and the temperature detection unit (54) are/is connected with the control system (7), the first electromagnetic valve (2), the second electromagnetic valve (3) and the third electromagnetic valve (6) are/is connected with the control system (7), the gas-water separator (1) comprises a separation shell (8) which is provided with an inner cavity (81) and is of a vertically arranged tubular structure, a static mixing unit (9) which can separate the inner cavity (81) into an upper cavity (82) and a lower cavity (83) is arranged in the separation shell (8), a hydrogen inlet (11) and an air inlet (12) are respectively arranged on one side of the lower end of the separation shell (8) and are communicated with the lower cavity (83), an exhaust port (13) is arranged on the upper end of the separation shell (8) and is communicated with the upper cavity (82), the water outlet (14) is arranged at the lower end of the separation shell (8) and communicated with a temporary liquid storage chamber (84) formed below the lower cavity (83).

2. The vertical fuel cell hydrogen and air mixing and liquid phase storage device according to claim 1, wherein the temperature detection unit (54) is a temperature sensor (71) disposed in the liquid storage tank (5), the temperature sensor (71) is connected with the control system (7), and the control system (7) is connected with a heat tracing device (72) disposed in the liquid storage tank (5).

3. The vertical fuel cell hydrogen and air mixing and liquid phase storage device according to claim 2, wherein the liquid level monitoring unit (53) is a liquid level meter (73) disposed in the liquid storage tank (5), and the liquid level meter (73) is connected to the control system (7).

4. The vertical fuel cell hydrogen-air mixing and liquid phase storage according to claim 1, 2 or 3, wherein the static mixing unit (9) is an SV type static mixing unit (93) formed by a plurality of horizontal corrugated plate groups (91) and a plurality of vertical corrugated plate groups (92) which are alternately distributed from top to bottom in sequence, and the circumferential outer side of the static mixing unit (9) is fixedly arranged on the circumferential inner wall of the separation shell (8).

5. The vertical fuel cell hydrogen and air mixing and liquid phase storage according to claim 4, wherein the horizontal corrugated plate group (91) comprises a plurality of horizontal corrugated plates (94) which are horizontally arranged and sequentially distributed from top to bottom, and one end of each horizontal corrugated plate (94) is fixedly arranged on the circumferential inner wall of the separation shell (8); the vertical corrugated plate group (92) comprises a plurality of vertical corrugated plates (95) which are vertically arranged on the same horizontal plane, and one ends of the vertical corrugated plates (95) are fixedly arranged on the circumferential inner wall of the separation shell (8).

6. The vertical fuel cell hydrogen and air mixing and liquid phase accumulator according to claim 4, characterized in that the separation casing (8) is cylindrical, and the upper end of the separation casing (8) has an upper necking part (85), and the exhaust port (13) is provided on the upper necking part (85), and the lower end of the separation casing (8) has a lower necking part (86), and the drain port (14) is provided on the lower necking part (86).

7. The vertical fuel cell hydrogen and air mixing and liquid phase storage according to claim 6, wherein the temporary reservoir (84) is formed inside the lower necking portion (86) in the circumferential direction, and the exhaust port (13) and the drain port (14) are disposed up and down along the central axis of the separation housing (8) in a corresponding manner.

8. The vertical fuel cell hydrogen and air mixing and liquid phase storage according to claim 4, wherein the separation case (8) has a hydrogen pipe (15) and an air pipe (16) disposed in parallel on one side of the lower end thereof and extending into the lower cavity (83) of the separation case, and the hydrogen inlet (11) is formed on one end of the hydrogen pipe (15), the other end of the hydrogen pipe (15) has a hydrogen through hole (17) formed in the lower cavity (83), the air inlet (12) is formed on one end of the air pipe (16), and the other end of the air pipe (16) has an air through hole (18) formed in the lower cavity (83).

Images