CN210897485U

CN210897485U - Proton exchange membrane fuel cell rapid reaction large flow gas humidifying device

Info

Publication number: CN210897485U
Application number: CN201921761795.2U
Authority: CN
Inventors: 熊宗保; 文海霞; 夏广阔; 胡金磊; 黄正东
Original assignee: Ningbo Bate Technology Co ltd
Current assignee: Ningbo Bate Technology Co ltd
Priority date: 2019-10-19
Filing date: 2019-10-19
Publication date: 2020-06-30
Anticipated expiration: 2029-10-19

Abstract

The utility model relates to a large-traffic gaseous humidification device of proton exchange membrane fuel cell fast reaction relates to proton exchange membrane fuel cell's technical field, and it just is the first cavity of horizontal setting and the second cavity that just is vertical setting with first cavity fixed connection including being used for holding the humidification liquid, the one end fixedly connected with that the second cavity was kept away from to first cavity is used for the gaseous branch head of input, the second cavity includes the stock solution portion that is linked together with first cavity and the spray portion that is used for spraying, be provided with the decurrent shower head of injection direction in the spray portion. The utility model discloses have that occupation space is little in the vertical direction, space utilization is high, dew point adjusts the high effect of precision.

Description

Proton exchange membrane fuel cell rapid reaction large flow gas humidifying device

Technical Field

The utility model belongs to the technical field of proton exchange membrane fuel cell's technique and specifically relates to a proton exchange membrane fuel cell reacts large-traffic gas humidification device fast.

Background

The proton exchange membrane fuel cell is a generating set which is not limited by Carnot cycle, has high energy conversion efficiency, and is a clean and high-efficiency green and environment-friendly power supply. The single cell of the proton exchange membrane fuel cell consists of an anode, a cathode and a proton exchange membrane, wherein the anode is a place where hydrogen fuel is oxidized, the proton exchange membrane is used as a medium for transferring hydrogen ions and only allows the hydrogen ions to pass through, and electrons lost by the hydrogen fuel reach the cathode through a lead to form current.

When the electric pile is running, the proton exchange membrane needs to keep a certain humidity so as to prevent the electrode from being dried to death and the capability of the proton exchange membrane for conducting the proton from being reduced. Meanwhile, the operating efficiency of the pem fuel cell is highest at an operating temperature of 80 ℃, so that the temperature of the reactant gas needs to be raised before entering the stack, which is usually performed simultaneously with the humidification process of the gas.

Chinese patent No. CN202792334U discloses a gas humidification system, which comprises a humidification device, wherein the humidification device comprises a first container, a second container, a spray header and a circulation pump, the first container is cylindrical, the circulation pump pumps humidification liquid in the first container into the second container from the bottom end of the first container, and the humidification liquid is heated by the second container and then flows back to the spray header in the first container to be sprayed out; air enters the first container from the lower end of the first container, and an air outlet is formed in the upper end of the first container; after entering the humidifying device, the air firstly passes through the humidifying liquid in the first container in a bubbling mode, and then is further humidified in a spraying mode, so that the air is fully humidified.

The above prior art solutions have the following drawbacks: in the humidifying device for humidifying the large-flow air, if the humidifying liquid in the first container is too little and the gas flow is too large, the humidifying liquid can form a phenomenon similar to 'boiling' in the first container, so that the contact between the humidifying liquid and the gas is insufficient, and in order to ensure the bubbling humidifying effect, a bubbling humidifying section in the first container can be lengthened along with the increase of the flow of the introduced air; since the first container is formed in a cylindrical shape, when humidifying a large flow rate of gas, the humidifying device manufactured to match the large flow rate of gas occupies a large space in the vertical direction, resulting in an increase in production and installation costs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a large-traffic gas humidification device of proton exchange membrane fuel cell fast reaction that occupation space is little on the vertical direction.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a large-traffic gas humidification system of proton exchange membrane fuel cell fast reaction, is including being used for holding the humidification liquid and being the first cavity of horizontal setting and with first cavity fixed connection and be the second cavity of vertical setting, the one end fixedly connected with that the second cavity was kept away from to first cavity is used for the gaseous branch head of input.

By adopting the technical scheme, the first cavity arranged transversely shortens the space occupied in the vertical direction, but the first cavity arranged transversely does not shorten the travel distance of the gas in the humidifying liquid; the space in the vertical direction is saved, the production and the manufacture are easier, the hoisting of parts by using a hoisting machine caused by overhigh height is avoided in the actual installation process, the difficulty in welding each part is reduced, and the installation cost is greatly reduced.

The utility model discloses further set up to: the second cavity comprises a liquid storage part communicated with the first cavity and a spraying part used for spraying, and a spraying head with a downward spraying direction is arranged in the spraying part.

By adopting the technical scheme, the humidification efficiency is improved by adopting the bubbling and spraying type common humidification mode, and the humidification uniformity is improved to a certain extent, so that the dew point of the humidified gas is easy to calculate and control, the precision is higher, and the most appropriate dew point is easy to allocate to maximize the power generation efficiency of proton exchange membrane fuel electrons.

The utility model discloses further set up to: the first cavity is horizontally arranged on a horizontal plane and is arranged into a straight cylinder, or the first cavity is arranged on the horizontal plane in an S shape.

By adopting the technical scheme, the straight-cylinder-shaped component saves materials, and meanwhile, in the production and manufacturing process, the straight-cylinder-shaped component is easier to process and lower in cost; the S-shaped structure increases the travel distance of the gas in the first cavity under the condition that the occupied space is unchanged, and improves the space utilization rate.

The utility model discloses further set up to: the liquid storage part of the second cavity is arranged in a straight cylinder shape, or the liquid storage part of the second cavity is arranged in an S shape.

By adopting the technical scheme, the straight-cylinder-shaped component saves materials, and meanwhile, in the production and manufacturing process, the straight-cylinder-shaped component is easier to process and has low manufacturing cost; the S-shaped liquid storage tank increases the travel distance of gas in the liquid storage part in the first cavity under the condition that the occupied space is unchanged, and improves the space utilization rate.

The utility model discloses further set up to: the humidifier also comprises a heating device for heating the humidifying liquid, wherein the heating device is arranged at the liquid storage part of the second cavity and is far away from one end of the first cavity.

By adopting the technical scheme, the heating device is arranged in the first cavity, the heating water tank arranged for heating the humidifying liquid is removed, the space occupied by the proton exchange membrane fuel cell rapid reaction large-flow gas humidifying device is reduced, and the space utilization rate is improved.

The utility model discloses further set up to: the humidifying device also comprises a circulating pump, wherein the lower end of the first cavity is connected with a first circulating pipe, one end of the first circulating pipe, which is far away from the first cavity, is connected with the circulating pump, one end of the circulating pump, which is far away from the first circulating pipe, is connected with a second circulating pipe, the circulating pump is used for conveying the humidifying liquid in the first circulating pipe into the second circulating pipe, and the second circulating pipe is communicated with the second cavity; the first cavity, the first circulating pipe, the circulating pump, the second circulating pipe and the second cavity are sequentially connected to form a circulating loop.

By adopting the technical scheme, in the process of heating the humidification liquid by the heating device, due to heat conduction, the humidification liquid at different positions has different thermal gradients, and the humidification liquid with different thermal gradients cannot accurately control the dew point of the gas, so that the dew point of the gas is unqualified and the power generation efficiency of the subsequent proton exchange membrane fuel cell is influenced; the setting of circulating pump makes the humidification liquid obtain abundant circulation, makes the thermal gradient of humidification liquid in different positions the same, and gaseous dew point can carry out accurate control.

The utility model discloses further set up to: one end of the second circulating pipe, which is far away from the circulating pump, penetrates through the second cavity and is connected with the spray header in the second cavity.

Through adopting above-mentioned technical scheme, the shower head need not additionally to install extra spraying return circuit again at the in-process that sprays, neither influences the effect that sprays, does not influence the circulation of humidification liquid yet, has further reduced the shared volume of second cavity, has reduced manufacturing cost simultaneously, and still less structure also makes things convenient for the later stage to install and maintain.

The utility model discloses further set up to: and one end of the second cavity, which is far away from the first cavity, is provided with a gas-water separation device for filtering liquid humidifying liquid mixed in moisture, and the gas-water separation device is connected with the gas outlet.

By adopting the technical scheme, a large amount of liquid humidifying liquid is easily carried by the humidified gas, the power generation efficiency of the proton exchange membrane fuel cell can be greatly reduced if the liquid humidifying liquid is not removed, if a gas-water separation device is not arranged, the second cavity needs to be pulled high, the gas outlet is far away from the liquid level of the humidifying liquid as far as possible, the liquid humidifying liquid is removed under the action of self gravity, but the liquid humidifying liquid cannot be completely removed, a large amount of space is occupied, and the removal efficiency is low; the gas-water separation device improves the efficiency of removing liquid humidifying liquid carried in the gas, and simultaneously can shorten the height of the second cavity, further reduce the space occupancy rate and save the production cost.

The utility model discloses further set up to: the humidifying device is characterized by further comprising a water supplementing device, the water supplementing device comprises an electromagnetic valve and a one-way valve, and the humidifying liquid sequentially enters the first cavity through the electromagnetic valve and the one-way valve.

Through adopting above-mentioned technical scheme, because the humidification liquid can reduce constantly at the humidification in-process, if not in time supply the humidification liquid can lead to the liquid level height decline of humidification liquid to influence the effect of tympanic bulla humidification, make gaseous dew point be difficult to obtain accurate control, the setting of moisturizing device can maintain humidification liquid in first cavity and second cavity at certain capacity, thereby guarantees the precision of gaseous dew point.

The utility model discloses further set up to: the humidifying liquid is pure water.

By adopting the technical scheme, the pure water is the water from which the impurities in the form of ions are removed, the arrangement of the pure water avoids the reduction of the generating efficiency of the proton exchange membrane fuel cell caused by the attachment of the ions on the proton exchange membrane when the humidified gas enters the proton exchange membrane fuel cell, and the arrangement of the pure water improves the service life of the proton exchange membrane fuel cell and reduces the use cost.

To sum up, the utility model discloses a beneficial technological effect does:

1. the space occupied by the proton exchange membrane fuel cell rapid reaction large-flow gas humidifying device in the vertical direction is shortened, the production and the manufacture are easier, the situation that parts need to be hoisted by using a crane due to overhigh height in the actual installation process is avoided, the difficulty of welding each part is reduced, and the installation cost is greatly reduced;

2. the heating device is arranged in the liquid storage part and the circulating loop is connected with the spray header, so that the space utilization rate is improved under the condition of keeping the space occupancy unchanged;

3. the arrangement of the gas-water separation device and the water replenishing device ensures the precision of the dew point of the gas obtained after passing through the humidifying device.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a schematic structural diagram of the first cavity and the second cavity in embodiment 1.

Fig. 3 is a schematic structural diagram of the first cavity and the second cavity in embodiment 2.

Fig. 4 is a schematic structural diagram of the first cavity and the second cavity in embodiment 3.

Fig. 5 is a schematic structural diagram of the first cavity and the second cavity in embodiment 4.

In the figure, 1, a first cavity; 2. a second cavity; 21. a liquid storage part; 22. a spraying part; 23. a shower head; 3. gas tapping; 4. an air outlet; 5. a heating device; 6. a circulation loop; 61. a circulation pump; 62. a first circulation pipe; 63. a second circulation pipe; 7. a gas-water separation device; 8. a water replenishing device; 81. an electromagnetic valve; 82. a one-way valve.

Detailed Description

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

As shown in fig. 1, for the utility model discloses a large-traffic gas humidification device of proton exchange membrane fuel cell fast reaction, including being used for holding the humidification liquid and being the first cavity 1 of horizontal setting and with first cavity 1 fixed connection and being the second cavity 2 of vertical setting, the one end fixedly connected with that second cavity 2 was kept away from to first cavity 1 is used for the gaseous gas of input to divide head 3, and the one end that first cavity 1 was kept away from to second cavity 2 is provided with the gas outlet 4 to the proton exchange membrane fuel cell transport moisture.

Since the proton exchange membrane has a high sensitivity to incoming conductive ions, which reduces the efficiency of the proton exchange membrane to transmit protons, and thus reduces the power generation efficiency of the proton exchange membrane fuel cell, the humidification liquid is preferably pure water, which is water from which impurities in the form of ions have been removed.

The second cavity 2 comprises a liquid storage part 21 communicated with the first cavity 1 and a spraying part 22 used for spraying and humidifying, a spraying head 23 with a downward spraying direction is arranged in the spraying part 22, the humidifying efficiency is improved through bubbling and spraying modes, and meanwhile the humidifying precision is further improved.

Since it is also necessary to increase the dew point of the gases during humidification of the gases, which is a temperature-dependent parameter, a heating device 5 is provided to heat the gases. In this embodiment, the temperature of gas is synchronously improved through the mode of heating the humidifying liquid, so that the heating is more uniform, and the temperature control is convenient.

Heating device 5 sets up in the stock solution portion 21 of second cavity 2 and keeps away from the one end of first cavity 1, still including one be used for guaranteeing the even circulation circuit 6 of humidification liquid thermal gradient, circulation circuit 6 includes circulating pump 61, first circulating pipe 62 and second circulating pipe 63, first circulating pipe 62 is connected in the lower extreme of first cavity 1, the one end that first cavity 1 was kept away from to first circulating pipe 62 is connected with circulating pump 61, the other end of circulating pump 61 is connected with second circulating pipe 63, the one end that circulating pump 61 was kept away from to second circulating pipe 63 runs through second cavity 2 and with shower head 23 fixed connection of shower portion 22. The circulating pump 61 delivers the humidifying liquid to the second circulating pipe 63 through the first circulating pipe 62, so as to achieve the purpose of active circulation and ensure that the temperatures of all positions of the humidifying liquid are the same.

One end of the second cavity 2 far away from the first cavity 1 is provided with a gas-water separation device 7 for filtering liquid humidifying liquid mixed in moisture, and the gas-water separation device 7 is connected with a gas outlet 4 at the upper end of the second cavity 2.

In order to conveniently supplement the humidification liquid in the first cavity 1 and the second cavity 2 and ensure the humidification precision, the humidifying device is also provided with a water supplementing device 8, the water supplementing device 8 comprises an electromagnetic valve 81 and a one-way valve 82, the humidification liquid enters the first cavity 1 through the electromagnetic valve 81 and the one-way valve 82, and the electromagnetic valve 81 is arranged to be equivalent to a switch and used for turning on and off the humidification liquid supplement in the first cavity 1; the check valve 82 functions to prevent the reverse flow of the humidification liquid.

As shown in fig. 2, in embodiment 1, the first chamber 1 is provided in a straight tube shape and lies on a horizontal plane, and the second chamber 2 is provided in a straight tube shape.

As shown in fig. 3, in embodiment 2, the first chamber 1 is disposed in an "S" shape on a horizontal plane, and the second chamber 2 is disposed in a straight tube shape.

As shown in fig. 4, in embodiment 3, the first chamber 1 is provided in a straight tube shape and horizontally laid on a horizontal surface, and the liquid reservoir 21 of the second chamber 2 is provided in an "S" shape.

As shown in fig. 5, in embodiment 4, the first chamber 1 is provided in an "S" shape on a horizontal plane, and the liquid reservoir 21 of the second chamber 2 is provided in an "S" shape.

Through the combination forms of the first cavity 1 and the second cavity 2 in the

embodiments

1, 2, 3 and 4, and in combination with the space occupied in the actual production process, the requirement for space utilization rate and the control on cost, the shapes of the first cavity 1 and the second cavity 2 can be selected as appropriate.

The implementation principle of the embodiment is as follows:

the gas enters the first cavity 1 from the gas branch 3 and fully contacts with the humidification liquid in the first cavity 1, the gas moves to the liquid storage part 21 of the second cavity 2 through inertia and subsequent extrusion of the gas and emerges through the liquid level of the liquid storage part 21 of the second cavity 2, and bubbling humidification is realized; the gas is separated from the humidifying liquid and then sprayed and humidified through the spray head 23 arranged on the spray part 22, and because the gas is continuously flushed into the first cavity 1, the pressure of the spray part 22 of the second cavity 2 is slightly higher than the external pressure, so that the gas is output from the gas outlet 4 after passing through the gas-water separation device 7 at the upper end of the second cavity 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a large-traffic gas humidification device of proton exchange membrane fuel cell fast reaction which characterized in that, including be used for holding the humidification liquid and be horizontal first cavity (1) that sets up and with first cavity (1) fixed connection and be vertical second cavity (2) that set up, the one end fixedly connected with that second cavity (2) were kept away from in first cavity (1) is used for the gaseous gas of input to divide head (3).

2. The proton exchange membrane fuel cell rapid reaction large flow gas humidifying device according to claim 1, wherein the second cavity (2) comprises a liquid storage part (21) communicated with the first cavity (1) and a spraying part (22) for spraying, and a spraying head (23) with a downward spraying direction is arranged in the spraying part (22).

3. The device for rapidly reacting and humidifying high-flow gas for a proton exchange membrane fuel cell according to claim 1, wherein the first cavity (1) is horizontally arranged on a horizontal plane and is arranged as a straight cylinder, or the first cavity (1) is arranged in an S shape on the horizontal plane.

4. The pem fuel cell high-flow gas humidifier according to claim 2 or 3, wherein the liquid storage part (21) of the second chamber (2) is a straight cylinder, or the liquid storage part (21) of the second chamber (2) is an "S" shape.

5. The device for rapidly reacting and humidifying gas with high flow rate according to claim 2, further comprising a heating device (5) for heating the humidifying liquid, wherein the heating device (5) is arranged at one end of the liquid storage part (21) of the second cavity (2) and far away from the first cavity (1).

6. The device for humidifying the large-flow gas for the rapid reaction of the proton exchange membrane fuel cell according to claim 5, further comprising a circulating pump (61), wherein a first circulating pipe (62) is connected to the lower end of the first cavity (1), one end of the first circulating pipe (62) far away from the first cavity (1) is connected with the circulating pump (61), one end of the circulating pump (61) far away from the first circulating pipe (62) is connected with a second circulating pipe (63), the circulating pump (61) is used for conveying the humidifying liquid in the first circulating pipe (62) into the second circulating pipe (63), and the second circulating pipe (63) is communicated with the second cavity (2); the first cavity (1), the first circulating pipe (62), the circulating pump (61), the second circulating pipe (63) and the second cavity (2) are sequentially connected to form a circulating loop (6).

7. The device for humidifying high-flow gas for rapid reaction of proton exchange membrane fuel cell according to claim 6, wherein one end of the second circulating pipe (63) far away from the circulating pump (61) penetrates through the second cavity (2) and is connected with the spray header (23) in the second cavity (2).

8. The proton exchange membrane fuel cell rapid reaction large flow gas humidifying device according to claim 1, wherein a gas-water separating device (7) for filtering liquid humidifying liquid mixed in moisture is arranged at one end of the second cavity (2) far away from the first cavity (1), and the gas-water separating device (7) is connected with the gas outlet (4).

9. The proton exchange membrane fuel cell rapid reaction large flow gas humidifying device according to claim 1, further comprising a water replenishing device (8), wherein the water replenishing device (8) comprises an electromagnetic valve (81) and a one-way valve (82), and the humidifying liquid enters the first cavity (1) through the electromagnetic valve (81) and the one-way valve (82) in sequence.

10. The pem fuel cell high flow rate gas humidifier of claim 1, wherein the humidification fluid is pure water.