CN220253281U - Hydrogen heat exchanger for hydrogen fuel cell - Google Patents
Hydrogen heat exchanger for hydrogen fuel cell Download PDFInfo
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- CN220253281U CN220253281U CN202320783652.1U CN202320783652U CN220253281U CN 220253281 U CN220253281 U CN 220253281U CN 202320783652 U CN202320783652 U CN 202320783652U CN 220253281 U CN220253281 U CN 220253281U
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- hydrogen
- liquid
- heat exchanger
- pipe
- ventilation
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 239000001257 hydrogen Substances 0.000 title claims abstract description 112
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 112
- 239000000446 fuel Substances 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 75
- 238000009423 ventilation Methods 0.000 claims description 61
- 238000010438 heat treatment Methods 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 150000002431 hydrogen Chemical class 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Fuel Cell (AREA)
Abstract
The utility model discloses a hydrogen heat exchanger for a hydrogen fuel cell, which comprises: the hydrogen pipe is connected with the heat exchanger body through a pipeline; the hydrogen pipe includes: a long tube and air pipes respectively arranged at two sides of the long tube; a turbulence component for turbulence of the hydrogen is arranged in the long tube; the turbulence assembly includes: two round tubes attached to the inside of the long tube; the inner wall of the round tube is provided with a plurality of spiral strips, and the spiral directions of the spiral strips in the two round tubes are opposite; according to the utility model, the turbulence of the hydrogen in the flowing process is promoted by the two spiral strips with opposite directions, so that the hydrogen in the hydrogen pipe can be heated uniformly, the heat energy is utilized at maximum efficiency, and the influence on the utilization rate of the hydrogen caused by lower temperature of the hydrogen entering the reaction is avoided.
Description
Technical Field
The present utility model relates to a fuel cell, and more particularly, to a hydrogen heat exchanger for a hydrogen fuel cell.
Background
The development of hydrogen energy necessarily requires a matched intercooler or heat exchanger, and the heat exchanger special for the fuel cell is applied and produced; the hydrogen-oxygen fuel cell takes hydrogen as a reducing agent and oxygen as an oxidizing agent, and the hydrogen-oxygen fuel cell converts chemical energy into electric energy through the combustion reaction of the fuel, and has the same working principle as a primary cell;
chinese patent CN217933875U discloses a hydrogen heat exchanger for fuel cell system, the device is used for the hydrogen heating of sprayer front end, has improved hydrogen heat exchange efficiency, avoids fuel cell system electric pile positive pole entry to produce liquid water, has improved electric pile performance and life-span, but, in the in-process of heating intraductal hydrogen, because the hydrogen pressure balance that flows in the pipe is unanimous, and the device is the heating of sprayer front end hydrogen, so when intraductal hydrogen heats, the hydrogen at intraductal middle part can appear can not heating to appointed temperature, and directly react, makes the utilization ratio of hydrogen reduce.
Disclosure of Invention
The utility model overcomes the defects of the prior art and provides the hydrogen heat exchanger for the hydrogen fuel cell. In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydrogen heat exchanger for a hydrogen fuel cell, comprising: the heat exchanger body and the hydrogen pipe are arranged on the same side,
a heating component for heating the hydrogen pipe is arranged in the heat exchanger body;
the hydrogen pipe includes: a long tube and air pipes respectively arranged at two sides of the long tube; a turbulence component for turbulence of the hydrogen is arranged in the long tube;
the turbulence assembly includes: two round tubes attached to the inside of the long tube; the inner wall of the circular tube is provided with a plurality of spiral strips, and the spiral directions of the spiral strips in the two circular tubes are opposite.
In a preferred embodiment of the present utility model, the hydrogen pipe further comprises: a joint for connecting the long tube with the air tube; and a sealing gasket is arranged in the joint.
In a preferred embodiment of the present utility model, an end of the air pipe away from the long pipe penetrates through the heat exchanger body, and the connection positions of the air pipe and the heat exchanger body are all sealing structures.
In a preferred embodiment of the utility model, a supporting plate for supporting the heating component is fixed in the heat exchanger body, and the supporting plate divides the heat exchanger body into an upper cavity and a lower cavity;
the heating component is positioned in the upper cavity, and the hydrogen pipe is positioned in the lower cavity.
In a preferred embodiment of the present utility model, the heating assembly comprises: the liquid-passing plates are positioned between the two ventilation plates, and the adjacent liquid-passing plates and the ventilation plates are mutually adhered and fixed; the upper end and the lower end of the ventilation plate and the upper end of the liquid passing plate are respectively provided with a through opening, the upper end of the liquid passing plate is provided with a liquid passing piece communicated with the liquid passing piece, and the upper end and the lower end of the ventilation plate are respectively provided with a ventilation piece communicated with the liquid passing piece;
the supporting plate is provided with a notch communicated with the open position of the liquid passing plate;
the liquid passing piece is provided with a medium liquid inlet pipe communicated with the liquid passing piece, and the supporting plate is provided with a medium liquid outlet pipe communicated with the lower cavity; the ventilation piece positioned on the same side of the liquid ventilation piece is provided with a hot air outlet pipe communicated with the liquid ventilation piece, and the ventilation piece on the other side is communicated with a hot air inlet pipe.
In a preferred embodiment of the present utility model, the vent comprises: the ventilation square pipes are arranged at the open positions of the ventilation plates, and the connecting air pipes are positioned at the outer sides of the plurality of ventilation square pipes; the connecting air pipe is used for communicating the plurality of ventilation square pipes.
The liquid passing member comprises: the liquid-passing square pipes are arranged at the open positions of the liquid-passing plates, and the liquid-connecting pipes are positioned at one sides of the liquid-passing square pipes; the liquid connection pipe is used for communicating the liquid-passing square pipes.
In a preferred embodiment of the present utility model, a plurality of barrier strips are symmetrically installed on the inner walls of two sides of the ventilation plate, and the inclined surfaces of the barrier strips on two sides are arranged in a crossing manner.
In a preferred embodiment of the present utility model, a plurality of baffles are disposed at the hollow position inside the liquid passing plate, and the hollow position of the liquid passing plate is divided into a plurality of liquid passing tanks by the baffles.
The utility model solves the defects existing in the background technology, and has the following beneficial effects:
(1) According to the utility model, through the cooperation between the structures, in the process that hydrogen enters through the air pipe at one side of the hydrogen pipe and is discharged from the air pipe at the other side, the hydrogen can pass through one of the circular pipes, so that the hydrogen presents a spiral trend, when entering the other circular pipe, the hydrogen advancing in a spiral way can collide with the spiral strip opposite to the spiral direction of the hydrogen, the hydrogen is disturbed in the flowing process, and therefore, the hydrogen in the hydrogen pipe can be heated uniformly, the heat energy is utilized at maximum efficiency, the lower temperature of the hydrogen entering the reaction is avoided, and the utilization rate of the hydrogen is influenced.
(2) The heating assembly flows the hot air and the medium to be heated in countercurrent, so that the medium to be heated is fully heated.
(3) Through setting up two sets of blend stops that alternately set up in the aeration board, make hot air can be located the aeration board for a long time and heat the medium, make full use of heat energy.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a schematic perspective view of a preferred embodiment of the present utility model;
FIG. 2 is a schematic view of the internal structure of a preferred embodiment of the present utility model;
FIG. 3 is a schematic view showing the internal structure of a hydrogen pipe according to a preferred embodiment of the present utility model;
FIG. 4 is a schematic view of the heating assembly structure of the preferred embodiment of the present utility model;
fig. 5 is a schematic view of a liquid passing plate and a gas passing plate structure according to a preferred embodiment of the present utility model, and a partially enlarged schematic view thereof.
In the figure: 1. a heat exchanger body; 2. a hydrogen pipe; 3. a long tube; 4. an air pipe; 5. a round tube; 6. a spiral strip; 7. a support plate; 8. a ventilation plate; 9. a liquid-passing plate; 10. a medium liquid inlet pipe; 11. a medium outlet pipe; 12. a hot gas outlet pipe; 13. a hot gas inlet pipe; 14. a ventilation square tube; 15. connecting an air pipe; 16. a liquid-passing square tube; 17. connecting a liquid pipe; 18. a barrier strip; 19. a liquid passing groove; 20. and a baffle.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the utility model, which are presented only by way of illustration, and thus show only the structures that are relevant to the utility model.
As shown in fig. 1 and 3, a hydrogen heat exchanger for a hydrogen fuel cell includes: a heat exchanger body 1 and a hydrogen pipe 2,
a heating component for heating the hydrogen pipe 2 is arranged in the heat exchanger body 1;
the hydrogen pipe 2 includes: a long tube 3 and air pipes 4 respectively installed at both sides of the long tube 3; a turbulence component for turbulence of the hydrogen is arranged in the long tube 3;
the turbulence assembly includes: two round tubes 5 attached to the inside of the long tube 3; the inner wall of the round tube 5 is provided with a plurality of spiral strips 6, and the spiral directions of the spiral strips 6 in the two round tubes 5 are opposite.
In a preferred embodiment of the present utility model, the hydrogen pipe 2 further comprises: a joint for connecting the long tube 3 and the air tube 4; the inside of the joint is provided with a sealing gasket.
In a preferred embodiment of the present utility model, the end of the air pipe 4 far away from the long pipe 3 penetrates through the heat exchanger body 1, and the connection positions of the air pipe and the heat exchanger body 1 are all sealing structures.
In order to make the hydrogen gas more sufficient for the reaction, the hydrogen gas needs to be heated, and in the process of heating the hydrogen gas, a turbulence block is installed in the hydrogen gas pipe 2, which can turbulence the hydrogen gas flowing in the pipe, so that the hydrogen gas in the hydrogen gas pipe 2 can be uniformly heated;
when the hydrogen needs to be heated, the heating component heats the hydrogen pipe 2, the hydrogen in the hydrogen pipe 2 is heated in a heat transfer mode, the hydrogen enters the long pipe 3 through the air pipe 4 at one side, firstly, the hydrogen can pass through one of the circular pipes 5 and is driven in the direction by the spiral strip 6 on the circular pipe 5, so that the circulated hydrogen can flow in a spiral trend, when the hydrogen in the spiral trend passes through the other circular pipe 5, the spiral directions of the spiral strips 6 in the two circular pipes 5 are opposite, so that the hydrogen in the spiral trend flows can be contacted with the spiral strips 6 in the other circular pipe 5, the spiral direction of the hydrogen is disturbed, the purpose of turbulence of the hydrogen in the hydrogen pipe 2 is achieved, the hydrogen in the hydrogen pipe 2 is uniformly heated, and the temperature after the hydrogen heating is ensured.
As shown in fig. 2 and 4;
in a preferred embodiment of the present utility model, a support plate 7 for supporting the heating component is fixed inside the heat exchanger body 1, and the support plate 7 divides the heat exchanger body 1 into an upper cavity and a lower cavity;
the heating component is positioned in the upper cavity, and the hydrogen pipe 2 is positioned in the lower cavity.
In a preferred embodiment of the present utility model, the heating assembly comprises: the liquid-passing plates 8 and the liquid-passing plates 9 are positioned between the two air-passing plates 8, and the adjacent liquid-passing plates 9 and the air-passing plates 8 are mutually adhered and fixed; the upper end and the lower end of the ventilation plate 8 and the upper end and the lower end of the liquid ventilation plate 9 are respectively provided with a penetrating opening, the opening position of the upper end of the liquid ventilation plate 9 is provided with a liquid ventilation piece communicated with the liquid ventilation piece, and the opening positions of the upper end and the lower end of the ventilation plate 8 are respectively provided with a ventilation piece communicated with the liquid ventilation piece;
the supporting plate 7 is provided with a notch communicated with the open position of the liquid through plate 9;
a medium liquid inlet pipe 10 communicated with the liquid passing piece is arranged on the liquid passing piece, and a medium liquid outlet pipe 11 communicated with the lower cavity is arranged on the supporting plate 7; the ventilation piece positioned on the same side of the liquid ventilation piece is provided with a hot air outlet pipe 12 communicated with the liquid ventilation piece, and the ventilation piece on the other side is communicated with a hot air inlet pipe 13.
In a preferred embodiment of the present utility model, the vent comprises: the ventilation square pipes 14 are arranged at the open positions of the ventilation plates 8, and the connecting air pipes 15 are positioned outside the ventilation square pipes 14; a connecting air pipe 15 connects the plurality of ventilation square pipes 14.
The liquid passing piece comprises: a liquid-passing square pipe 16 arranged at the opening position of the liquid-passing plate 9, and a liquid-connecting pipe 17 positioned at one side of the liquid-passing square pipes 16; the liquid connection pipe 17 connects the plurality of liquid-passing square pipes 16.
The open position of the ventilation square tube 14 corresponding to the liquid ventilation plate 9 is provided with a notch.
It should be noted that, the medium to be heated in the liquid passing plate 9 is preferably condensate, the medium liquid outlet pipe 11 and the medium liquid inlet pipe 10 are both communicated with an external pump body, the condensate enters the connecting liquid pipe 17 through the medium liquid inlet pipe 10, enters the liquid passing plate 9 through the liquid passing square pipe 16, then enters the lower cavity of the heat exchanger body 1, and is discharged through the medium liquid outlet pipe 11, so that the condensate forms an internal circulation;
the hot air inlet pipe 13 is communicated with an external air heating part and is conveyed by an air pump, hot air enters the connecting air pipe 15 through the hot air inlet pipe 13, enters the ventilation plate 8 through the ventilation square pipe 14, and then enters the hot air outlet pipe 12 from the ventilation part at the other end and is discharged;
when the heating component heats the hydrogen pipe 2, hot air entering the ventilation plate 8 through the hot air inlet pipe 13 heats flowing condensate until the condensate is heated to a specified temperature, the condensate enters the liquid passing plate 9 through the liquid passing piece and enters the lower cavity of the heat exchanger body 1, the hydrogen pipe 2 is heated, and the condensate is heated in a reciprocating cycle through the medium outlet pipe 11, so that the condensate is kept at a constant temperature, and the hydrogen pipe 2 is heated constantly.
As shown in fig. 5;
in a preferred embodiment of the present utility model, a plurality of barrier ribs 18 are symmetrically installed on the inner walls of two sides of the ventilation board 8, and the inclined surfaces of the barrier ribs 18 are disposed in a crossing manner.
In order to fully utilize the heat in the hot air re-ventilation plate 8, it is necessary to make the hot air exist in the ventilation plate 8 for a long time, so that the two sets of barrier strips 18 are arranged in a crossing manner, and the passing hot air is disturbed, so that the heat in the hot air can heat the condensate in the ventilation plate 9 in a better heat transfer manner, and the utilization rate of the hot air is improved.
In a preferred embodiment of the present utility model, a plurality of baffles 20 are disposed at the hollow position inside the liquid passing plate 9, and the hollow position of the liquid passing plate 9 is divided into a plurality of liquid passing grooves 19 by the baffles 20.
By means of the baffle 20, the structural strength of the liquid passing plate 9 can be improved, and meanwhile, condensate entering the liquid passing plate 9 can be divided into a plurality of parts, so that the heating rate of the condensate can be improved.
When the device is used, firstly, condensate enters the liquid passing plate 9 through the medium liquid inlet pipe 10 through the liquid passing piece, is discharged from the medium liquid outlet pipe 11 and is connected with the pump body, so that the condensate is circularly reciprocated, hot air enters the air passing plate 8 through the air passing piece, and is disturbed through the barrier strips 18 in the air passing plate 8, so that heat in the hot air can be transferred through heat, the flowing condensate is fully heated, the condensate is heated to a designated position, the condensate reaching the designated temperature heats the hydrogen pipe 2, and hydrogen in the hydrogen pipe 2 is heated in a heat transfer mode, so that the safety is improved;
in the process of flowing hydrogen through the hydrogen pipe 2, the hydrogen passes through one of the circular pipes 5, so that the hydrogen has a spiral trend, and when entering the other circular pipe 5, the hydrogen which is in spiral progress collides with the spiral strip 6 which is opposite to the spiral direction of the hydrogen, so that the hydrogen is disturbed in the flowing process, and the hydrogen in the hydrogen pipe 2 can be heated uniformly.
The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the person skilled in the art without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. A hydrogen heat exchanger for a hydrogen fuel cell, comprising: the heat exchanger is characterized by comprising a heat exchanger body (1) and a hydrogen pipe (2),
a heating component for heating the hydrogen pipe (2) is arranged in the heat exchanger body (1);
the hydrogen pipe (2) includes: a long tube (3) and air pipes (4) respectively arranged at two sides of the long tube (3); a turbulence component for turbulence of the hydrogen is arranged in the long tube (3);
the turbulence assembly includes: two circular tubes (5) attached to the inside of the long tube (3); the inner wall of the round tube (5) is provided with a plurality of spiral strips (6), and the spiral directions of the spiral strips (6) in the two round tubes (5) are opposite.
2. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 1, wherein: the hydrogen pipe (2) further comprises: a joint for connecting the long tube (3) and the air tube (4); and a sealing gasket is arranged in the joint.
3. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 1, wherein: one end of the air pipe (4) far away from the long pipe (3) penetrates through the heat exchanger body (1), and the connection positions of the air pipe and the heat exchanger body (1) are of sealing structures.
4. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 1, wherein: a supporting plate (7) for supporting the heating component is fixed inside the heat exchanger body (1), and the supporting plate (7) divides the heat exchanger body (1) into an upper cavity and a lower cavity;
the heating component is positioned in the upper cavity, and the hydrogen pipe (2) is positioned in the lower cavity.
5. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 4, wherein: the heating assembly includes: the liquid-passing plates (8) and liquid-passing plates (9) are positioned between the two air-passing plates (8), and the adjacent liquid-passing plates (9) and the air-passing plates (8) are mutually adhered and fixed; the upper end and the lower end of the ventilation plate (8) and the upper end and the lower end of the liquid ventilation plate (9) are respectively provided with a through opening, the upper end of the liquid ventilation plate (9) is provided with a liquid ventilation piece communicated with the liquid ventilation plate, and the upper end and the lower end of the ventilation plate (8) are respectively provided with a ventilation piece communicated with the liquid ventilation piece;
the supporting plate (7) is provided with a notch communicated with the open position of the liquid through plate (9);
the liquid passing piece is provided with a medium liquid inlet pipe (10) communicated with the liquid passing piece, and the supporting plate (7) is provided with a medium liquid outlet pipe (11) communicated with the lower cavity; the ventilation piece positioned on the same side of the liquid ventilation piece is provided with a hot air outlet pipe (12) communicated with the liquid ventilation piece, and the ventilation piece on the other side is communicated with a hot air inlet pipe (13).
6. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 5, wherein: the vent includes: the ventilation square pipes (14) are arranged at the opening positions of the ventilation plates (8), and the connecting air pipes (15) are positioned outside the ventilation square pipes (14); the connecting air pipe (15) is used for communicating a plurality of ventilation square pipes (14);
the open position of the ventilation square tube (14) corresponding to the liquid ventilation plate (9) is provided with a notch.
7. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 5, wherein: the liquid passing member comprises: a liquid-passing square pipe (16) arranged at the opening position of the liquid-passing plate (9), and a plurality of liquid-connecting pipes (17) positioned at one side of the liquid-passing square pipes (16); the liquid connection pipe (17) is used for communicating the liquid passing square pipes (16).
8. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 5, wherein: a plurality of barrier strips (18) are symmetrically arranged on the inner walls of the two sides of the ventilation plate (8), and the inclined surfaces of the barrier strips (18) on the two sides are arranged in a crossing way.
9. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 5, wherein: the hollow position inside the liquid passing plate (9) is provided with a plurality of baffles (20), and the hollow position of the liquid passing plate (9) is divided into a plurality of liquid passing grooves (19) through the baffles (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320783652.1U CN220253281U (en) | 2023-04-11 | 2023-04-11 | Hydrogen heat exchanger for hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320783652.1U CN220253281U (en) | 2023-04-11 | 2023-04-11 | Hydrogen heat exchanger for hydrogen fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220253281U true CN220253281U (en) | 2023-12-26 |
Family
ID=89233208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320783652.1U Active CN220253281U (en) | 2023-04-11 | 2023-04-11 | Hydrogen heat exchanger for hydrogen fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220253281U (en) |
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2023
- 2023-04-11 CN CN202320783652.1U patent/CN220253281U/en active Active
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