WO2020173167A1

WO2020173167A1 - Hydrogen intake adjusting assembly device for fuel cell and fuel cell to which same is applied

Info

Publication number: WO2020173167A1
Application number: PCT/CN2019/123952
Authority: WO
Inventors: 李勇; 邓佳; 韦庆省; 梁未栋; 王宏旭; 赵勇富; 张振涛; 易勇
Original assignee: 中山大洋电机股份有限公司
Priority date: 2019-02-28
Filing date: 2019-12-09
Publication date: 2020-09-03

Abstract

A hydrogen intake adjusting assembly device for a fuel cell and a fuel cell to which same is applied, the hydrogen intake adjusting assembly device for a fuel cell comprising a manifold block (1A), an inner surface of the manifold block (1A) being provided with a flow channel through which hydrogen circulates, and the device being characterized in further comprising a first heating unit (101A) and first temperature sensor (102A) on the manifold block (1A). The temperature of a hydrogen intake valve assembly is detected by means of the first temperature sensor (102A), and the hydrogen intake valve assembly is heated at a suitable time by means of the first heating unit (101A), thereby achieving a cold start function.

Description

Fuel cell hydrogen intake regulating assembly device and fuel cell used therefor

Technical field:

The invention relates to a fuel cell hydrogen intake regulating assembly device and a fuel cell used in the same.

Background technique:

The existing hydrogen energy fuel cell generally includes a box body, a box cover, a stack module (that is, a fuel cell stack--that is, a series of multiple independent single fuel cells), a fuel cell hydrogen intake adjustment assembly device, and a stack gas outlet Valve group, hydrogen circulation pump, air gas system and cooling system, among which the stack module, hydrogen inlet valve assembly, and stack gas outlet valve group are all installed in the box. The air and gas system, cooling system, and hydrogen circulation pump are installed in the box. Outside the body.

The fuel cell hydrogen intake adjustment assembly is used as a fuel cell system fuel supply receiving and distribution adjustment device to ensure that sufficient reactive hydrogen is provided for the system. The main mechanism includes a manifold block, a stop valve, a proportional regulating valve, a pressure sensor, a restrictor valve, a hydrogen inlet connector, and a hydrogen outlet connector installed on the manifold block. The manifold block is provided with a first flow channel and a second flow channel for hydrogen to circulate. Flow channel and third flow channel, the inlet of the first flow channel is installed with a hydrogen inlet connector, the first flow channel and the second flow channel are connected by a stop valve, the second flow channel and the third flow channel are connected by a proportional regulating valve, and the third flow channel A hydrogen outlet is installed at the outlet of the third flow channel, the middle of the third flow channel is connected with a pressure detection channel, and a pressure sensor is installed at the end of the pressure detection channel. The fuel cell hydrogen inlet regulating assembly device of this structure is prone to failure when started at low temperatures and does not have a cold start function. This directly affects the cold start of the fuel cell.

Summary of the invention:

The purpose of the present invention is to provide a fuel cell hydrogen intake adjustment assembly device and a fuel cell applied thereto, which can solve the problem that the fuel cell hydrogen intake adjustment assembly device does not have a cold start function.

The purpose of the present invention is achieved through the following technical solutions.

The first object of the present invention is to provide a fuel cell hydrogen intake regulating assembly device, including a hydrogen intake manifold block, the hydrogen intake manifold block includes a manifold block, and a flow channel for hydrogen gas is provided in the manifold block. It lies in that it also includes a first heating unit and a first temperature sensor installed on the manifold.

The above-mentioned first temperature sensor and the first heating unit are respectively connected to the fuel cell controller. The first temperature sensor senses the temperature of the manifold. When the sensed temperature is lower than the set value, the fuel cell controller controls the first heating The unit works. When the sensed temperature is greater than the set value, the fuel cell controller controls the first heating unit to stop working.

The above-mentioned electric heating plate is mounted on the bottom surface of the manifold block, and the first temperature sensor is mounted on the top surface of the manifold block.

The aforementioned electric heating plate is also mounted on the side of the manifold.

The above-mentioned hydrogen inlet integrated manifold block also includes a shut-off valve, a proportional regulating valve, a pressure sensor, a hydrogen inlet connector and a hydrogen outlet connector. The flow channels arranged in the manifold block for hydrogen to circulate include a first flow channel, a second flow channel and a second flow channel. Three flow channels, the first inlet of the first flow channel is equipped with a hydrogen inlet connector, the first outlet of the first flow channel is connected with the second inlet of the second flow channel through a shut-off valve, and the second outlet of the second flow channel is connected to the The third inlet of the third flow channel is connected, the third outlet of the third flow channel is equipped with a hydrogen outlet connector, the middle of the third flow channel is connected with a pressure detection channel, and a pressure sensor is installed in the pressure detection channel.

The pressure detection channel is connected with a pressure relief channel, and a pressure relief valve is installed at the end of the pressure relief channel.

A restrictor block is installed in the aforementioned hydrogen inlet joint, and a restrictor hole is arranged in the middle of the restrictor block.

A bracket is installed on the bottom surface of the manifold block, and the first heating unit is supported on the bracket.

The second object of the present invention is to provide a fuel cell, including a fuel cell hydrogen intake adjustment assembly device, characterized in that: the fuel cell hydrogen intake adjustment assembly device is the aforementioned fuel cell hydrogen intake adjustment assembly device .

Compared with the prior art, the present invention has the following effects:

1) The fuel cell hydrogen inlet regulating assembly device detects the temperature of the hydrogen inlet valve assembly through the first temperature sensor, and heats the hydrogen inlet valve assembly at an appropriate time through the first heating unit, so as to realize the cold start function;

2) The fuel cell is improved by improving the structure of the fuel cell hydrogen intake adjustment assembly device, adding a heating function, so that the fuel cell hydrogen intake adjustment assembly device can quickly melt ice below zero and normally open the adjustment action, simplifying the fuel cell Cold start system and control method;

3) Other advantages of the present invention are described in detail in the embodiment section.

Description of the drawings:

FIG. 1 is a perspective view of a hydrogen intake manifold block in a fuel cell hydrogen intake adjustment assembly device provided by Embodiment 1 of the present invention;

Figure 2 is a perspective view of the hydrogen inlet manifold from another angle;

Figure 3 is a side view of the hydrogen inlet manifold block;

Figure 4 is a cross-sectional view of D-D in Figure 3;

Figure 5 is a top view of the hydrogen inlet manifold block;

Figure 6 is a sectional view of B-B in Figure 5;

Figure 7 is a cross-sectional view of C-C in Figure 5;

Fig. 8 is a working block diagram of the first heating unit and the first temperature sensor in the fuel cell hydrogen intake regulating assembly device.

detailed description:

Hereinafter, the present invention will be further described in detail through specific embodiments in conjunction with the accompanying drawings.

Example one:

As shown in Figures 1 to 8, this embodiment provides a fuel cell hydrogen intake adjustment assembly device, including a hydrogen intake manifold block 100. The hydrogen intake manifold block 100 includes manifold block 1A. There is a flow channel for hydrogen to circulate, and it is characterized in that it also includes a first heating unit 101A and a first temperature sensor 102A installed on the manifold block 1A.

The first temperature sensor 102A detects the temperature of the fuel cell hydrogen intake adjustment assembly device, so that when the fuel cell hydrogen intake adjustment assembly device is started at a low temperature, the first heating unit 101A can be used to perform various parts of the fuel cell hydrogen intake adjustment assembly device Heating is performed to achieve the cold start function.

The aforementioned first heating unit 101A is an electric heating plate, and the electric heating plate is attached to the surface of the manifold block 1A. The heating plate has a simple structure and a wide heating range, which enhances the heating effect.

The aforementioned first temperature sensor 102A and the first heating unit 101A are respectively connected to the fuel cell controller 103A. The first temperature sensor 102A senses the temperature of the manifold block 1A. When the sensed temperature is lower than the set value, the fuel cell controls The controller 103A controls the first heating unit 101A to work, and when the sensed temperature is greater than the set value, the fuel cell controller 103A controls the first heating unit 101A to stop working. When performing a cold start in a low temperature environment, the first temperature sensor 102A detects the temperature of the hydrogen inlet valve assembly in real time and sends it to the fuel cell controller 103A. The fuel cell controller 103A controls the first heating unit 101A to collectively heat the parts. After reaching the expected temperature, the cold start is successful; the heating is directly controlled by the fuel cell controller 103A, and the control is fast and simple.

The aforementioned electric heating plate is mounted on the bottom surface 182A of the manifold block 1A, and the first temperature sensor 102A is mounted on the top surface 181A of the manifold block 1A. Easy installation and wide heating range.

The aforementioned electric heating plate is also attached to the side surface 183A of the manifold block 1. Further increase the heating area and enhance the heating effect.

The above-mentioned hydrogen inlet manifold block 100 further includes a shut-off valve 2A, a proportional regulating valve 3A, a pressure sensor 4A, a hydrogen inlet connector 5A, and a hydrogen outlet connector 7A. The flow channel provided in the manifold block 1A for hydrogen to circulate includes a first flow channel. 11A, the second flow channel 12A and the third flow channel 13A, the first inlet 111A of the first flow channel 11A is installed with the hydrogen inlet connector 5A, the first outlet 112A of the first flow channel 11A and the second inlet 121A of the second flow channel 12A pass The shut-off valve 2A is connected, the second outlet 122A of the second flow channel 12A is connected to the third inlet 131A of the third flow channel 13A through the proportional regulating valve 3A, and the third outlet 132A of the third flow channel 13A is installed with a hydrogen outlet connector 7A, The middle of the three flow passages 13A is connected with a pressure detection passage 40A, and a pressure sensor 4A is installed in the pressure detection passage 40A. The components are integrated through the manifold block 1A, which has strong integrity, smart volume, low manufacturing cost, and the heating effect of the first heating unit 101A is more effective.

The first flow channel 11A, the second flow channel 12A, and the third flow channel 13A are all straight pipes. The first flow channel 11A and the third flow channel 13A are parallel to each other, and the second flow channel 12A is perpendicular to the first flow channel 11A. The distribution is simple and reasonable.

A grounding terminal 17A is also installed on the surface of the manifold block 1A. The grounding terminal 17A is connected to the tank of the fuel cell through a grounding lead, which effectively eliminates static electricity.

The pressure detection channel 40A is connected with a pressure relief channel 105A, and a pressure relief valve 106A is installed at the end of the pressure relief channel 105A. The pressure relief valve 106A can protect the stack from being damaged by high pressure.

A flow limiting block 8A is installed in the above-mentioned hydrogen inlet connector 5A, and a flow limiting hole 81A is provided in the middle of the flow limiting block 8A. When the proportional regulating valve 3A and the shut-off valve 2A fail, the restricting hole 81A restricts the flow of hydrogen to prevent the hydrogen coming from the gas cylinder from directly entering the manifold 1A and causing damage to the stack module group.

A bracket 104A is installed on the bottom surface 182A of the manifold block 1A, and the first heating unit 101A is supported on the bracket 104A. The bracket 104A enhances the anti-vibration capability of the hydrogen inlet valve assembly.

Embodiment two:

This embodiment provides a fuel cell including a fuel cell hydrogen intake adjustment assembly device, characterized in that the fuel cell hydrogen intake adjustment assembly device is the fuel cell hydrogen intake adjustment assembly device described in the first embodiment. By improving the structure of the fuel cell hydrogen inlet regulating assembly device, the heating function is added, so that the fuel cell hydrogen inlet regulating assembly device can quickly melt the ice below zero and normally open the adjustment action, simplifying the fuel cell cold start system and Control Method.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent. The replacement methods of are all included in the protection scope of the present invention.

Claims

A fuel cell hydrogen intake regulating assembly device, including a hydrogen intake manifold block (100), the hydrogen intake manifold block (100) includes a manifold block (1A), and a flow channel for hydrogen gas is arranged in the manifold block (1A) , It is characterized in that it also includes a first heating unit (101A) and a first temperature sensor (102A) installed on the manifold (1A).
The fuel cell hydrogen intake regulating assembly device according to claim 1, wherein the first heating unit (101A) is an electric heating plate, and the electric heating plate is attached to the surface of the manifold (1A).
The fuel cell hydrogen intake regulating assembly device according to claim 1, wherein the first temperature sensor (102A) and the first heating unit (101A) are respectively connected to the fuel cell controller (103A), The first temperature sensor (102A) senses the temperature of the manifold (1A). When the sensed temperature is lower than the set value, the fuel cell controller (103A) controls the first heating unit (101A) to work. When the sensed temperature is greater than When the set value is set, the fuel cell controller (103A) controls the first heating unit (101A) to stop working.
A fuel cell hydrogen intake regulating assembly device according to claim 2, characterized in that: the electric heating plate is mounted on the bottom surface (182A) of the manifold (1A), and the first temperature sensor (102A) is mounted on The top surface (181A) of the manifold (1A).
The fuel cell hydrogen intake regulating assembly device according to claim 4, characterized in that: the electric heating plate is also attached to the side surface (183A) of the manifold block (1A).
A fuel cell hydrogen intake adjustment assembly device according to any one of claims 1 to 5, characterized in that: the hydrogen intake manifold block (100) further comprises a shut-off valve (2A), a proportional control valve ( 3A), pressure sensor (4A), hydrogen inlet connector (5A) and hydrogen outlet connector (7A). The flow channels provided in the manifold block (1A) for hydrogen flow include the first flow channel (11A) and the second flow channel ( 12A) and the third flow channel (13A), the first inlet (111A) of the first flow channel (11A) is installed with the hydrogen inlet connector (5A), the first outlet (112A) of the first flow channel (11A) and the second flow channel The second inlet (121A) of (12A) is connected through a shut-off valve (2A), and the second outlet (122A) of the second flow passage (12A) is connected through the proportional regulating valve (3A) and the third flow passage (13A). The inlet (131A) is connected, and the third outlet (132A) of the third flow channel (13A) is equipped with a hydrogen outlet connector (7A). The middle of the third flow channel (13A) is connected to a pressure detection channel (40A). The pressure detection channel ( Install the pressure sensor (4A) in 40A).
A fuel cell hydrogen intake regulating assembly device according to claim 6, characterized in that: the pressure detection channel (40A) is connected with a pressure relief channel (105A), and the end of the pressure relief channel (105A) is installed Pressure relief valve (106A).
A fuel cell hydrogen intake regulating assembly device according to claim 7, characterized in that: a flow limiting block (8A) is installed in the hydrogen intake connector (5A), and a current limiting block (8A) is provided in the middle of the flow limiting block (8A). Hole (81A).
A fuel cell hydrogen intake adjustment assembly device according to claim 8, characterized in that: the bottom surface (182A) of the manifold block (1A) is installed with a bracket (104A), and the first heating unit (101A) is supported on On the bracket (104A).
A fuel cell, comprising a fuel cell hydrogen intake adjustment assembly device, characterized in that the fuel cell hydrogen intake adjustment assembly device is the fuel cell hydrogen intake adjustment assembly device according to any one of claims 1 to 9.