CN212209666U

CN212209666U - Fuel cell air intake system

Info

Publication number: CN212209666U
Application number: CN202020412754.9U
Authority: CN
Inventors: 邵龙飞; 杨丰翼; 陈恒飞; 徐洲
Original assignee: Beijing Sinohytec Co Ltd
Current assignee: Beijing Sinohytec Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-22
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a fuel cell air inlet system, which comprises an air inlet box, a first pipeline, an air filter, a second pipeline, a flowmeter, a third pipeline, a first sensor and an air compressor, the fourth pipeline, the intercooler, the tee bend pipeline, the air throttle, the fifth pipeline, the humidifier, sixth pipeline and second sensor, the intercommunication is strained with empty through first pipeline to the box that admits air, empty straining is through second pipeline and flowmeter intercommunication, the flowmeter passes through third pipeline and air compressor machine intercommunication, the air compressor machine passes through fourth pipeline and intercooler intercommunication, the intercooler communicates with the first end of tee bend pipeline, tee bend pipeline's second end and air throttle intercommunication, tee bend pipeline's third end and pile intercommunication, the air throttle passes through fifth pipeline and humidifier intercommunication, the humidifier passes through sixth pipeline and pile intercommunication, first sensor sets up on the third pipeline, the second sensor sets up on the sixth pipeline. The advantages are that: the temperature, humidity and pressure of gas entering the air compressor and the electric pile can be accurately monitored.

Description

Fuel cell air intake system

Technical Field

The utility model relates to a fuel cell vehicle field particularly, relates to a fuel cell air intake system.

Background

The hydrogen fuel cell is a power generation device which directly converts chemical energy generated by the reaction of hydrogen and oxygen into electric energy through electrochemical reaction, has the advantages of high power generation efficiency, small environmental pollution and the like, and is widely applied to the field of automobiles. The subsystems forming the fuel cell engine are mainly a galvanic pile, an air inlet system, a hydrogen inlet system and a cooling system. Due to the complex operating conditions of the vehicle and the characteristics of the proton exchange membrane and the catalyst inside the fuel cell, the fuel cell has certain requirements on the temperature, humidity, pressure and cleanliness of the required air.

As shown in fig. 2, patent CN209912965U discloses a "hydrogen fuel cell system", which includes an air filter 201, a flow meter 202, an air compressor 203, an intercooler 204, a humidifier 205, an intake throttle 206, and a stack 207, where the air filter 201, the flow meter 202, the air compressor 203, the intercooler 204, the humidifier 205, the intake throttle 206, and the stack 207 are sequentially communicated through an intake pipe 210, a negative pressure sensor 208 is disposed on the air filter 201, an ambient temperature sensor 209 is disposed between the air filter 201 and the air flow meter 202, and a temperature and pressure integrated sensor 213 is disposed between the intake throttle 206 and the stack 207. In addition, the system is also directly communicated with the electric pile through a ventilation pipeline 211 in the intercooler 204, and the ventilation pipeline 211 is designed with a ventilation flow meter 212.

Patent CN209912965U has the disadvantage that the temperature and pressure integrated sensor 213 disposed on the air inlet pipeline in front of the stack can only detect the temperature and pressure of the air entering the stack, and cannot detect the humidity of the air entering the stack, nor the temperature, humidity and pressure of the air entering the air compressor. Therefore, the hydrogen fuel cell system in CN209912965U cannot monitor the gas index of the air intake system well, so that it cannot perform good early warning and control on the operation condition of the air compressor and the stack.

As shown in fig. 3, patent CN210108691U discloses a "hydrogen fuel cell air supply system test platform", which includes an air filter 301, an air flow meter 302, an air compressor 304, an intercooler 305, a second air flow meter 306, an intake throttle valve 308, and a silencer 309, where the air filter 301, the air flow meter 302, the air compressor 304, the intercooler 305, the second air flow meter 306, the intake throttle valve 308, and the silencer 309 are sequentially communicated through an intake pipe 303, a first temperature sensor 310 and a first pressure sensor 311 are disposed on the intake pipe 303 between the flow meter 302 and the air compressor 304, a second temperature sensor 312 and a second pressure sensor 313 are disposed on the intake pipe 303 between the air compressor 304 and the intercooler 305, and an integrated temperature and pressure sensor 307 is designed between the second air flow meter 306 and the intake throttle valve 308.

The patent CN210108691U has the disadvantage that it is impossible to detect the humidity of the air entering the stack, and also impossible to monitor the humidity of the air entering the air compressor, and also impossible to perform good early warning and control on the operation of the air compressor and the stack.

In view of the foregoing, it would be desirable to provide a fuel cell air intake system that overcomes the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fuel cell air intake system, it can overcome prior art's defect. The utility model discloses a utility model purpose can realize through following technical scheme.

An embodiment of the present invention provides a fuel cell air intake system, wherein the fuel cell air intake system includes an air intake box, a first pipeline, an air filter, a second pipeline, a flow meter, a third pipeline, a first sensor, an air compressor, a fourth pipeline, an intercooler, a three-way pipeline, a throttle valve, a fifth pipeline, a humidifier, a sixth pipeline, and a second sensor, the air intake box is communicated with the air filter through the first pipeline, the air filter is communicated with the flow meter through the second pipeline, the flow meter is communicated with the air compressor through the third pipeline, the air compressor is communicated with the intercooler through the fourth pipeline, the intercooler is communicated with the first end of the three-way pipeline, the second end of the three-way pipeline is communicated with the throttle valve, the throttle valve is communicated with the humidifier through the fifth pipeline, the humidifier is communicated with the pile through the sixth pipeline, the first sensor is disposed on the third pipeline, the second sensor is disposed on the sixth pipeline.

According to the fuel cell air intake system provided by the above embodiment of the present invention, the first sensor is a temperature-humidity-pressure integrated sensor.

According to the fuel cell air intake system provided by one embodiment of the present invention, the first sensor is mounted on one end of the third pipeline close to the air compressor.

According to the fuel cell air intake system provided by the above one embodiment of the present invention, the second sensor is a temperature-humidity-pressure integrated sensor.

According to the fuel cell air intake system provided by the above embodiment of the invention, the air suction box is fixedly installed at a side door air intake grille of the fuel cell vehicle.

The fuel cell air inlet system has the advantages that: the temperature, humidity and pressure of gas entering the air compressor and gas entering the electric pile can be monitored accurately, and the operation of the air compressor and the electric pile can be well pre-warned and controlled; the fault location and maintenance of the air circuit are facilitated; only two temperature, humidity and pressure integrated sensors are needed to be used, the number of the sensors and the number of designed pipeline interfaces are effectively reduced, the material cost and the pipeline design difficulty are reduced, and the management of materials is facilitated; the gas can be effectively taken out of the vehicle cabin, and an oxygen source is provided for the operation of the fuel cell.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only intended to illustrate the technical solution of the present invention and are not intended to limit the scope of the present invention. In the figure:

fig. 1 shows a schematic diagram of a fuel cell air intake system according to an embodiment of the present invention;

figure 2 shows a schematic view of a "hydrogen fuel cell system" disclosed in patent CN 209912965U;

figure 3 shows a schematic diagram of a "test platform for gas supply system of hydrogen fuel cell" disclosed in patent CN 210108691U.

Detailed Description

Fig. 1 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. For the purpose of teaching the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate that variations or substitutions from these embodiments will fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.

Fig. 1 shows a schematic view of a fuel cell system according to an embodiment of the present invention. As shown in fig. 1, the fuel cell air intake system includes an air intake box 101, a first pipeline 102, an air filter 103, a second pipeline 104, a flow meter 105, a third pipeline 106, a first sensor 107, an air compressor 108, a fourth pipeline 109, an intercooler 110, a three-way pipeline 111, a throttle valve 112, a fifth pipeline 113, a humidifier 114, a sixth pipeline 115, and a second sensor 116, the air intake box 101 communicates with the air filter 103 through the first pipeline 102, the air filter 103 communicates with the flow meter 105 through the second pipeline 104, the flow meter 105 communicates with the air compressor 108 through the third pipeline 106, the air compressor 108 communicates with the intercooler 110 through the fourth pipeline 109, the intercooler 110 communicates with a first end of the three-way pipeline 111, a second end of the three-way pipeline 111 communicates with the throttle valve 112, a third end of the three-way pipeline 111 communicates with the stack 400, the throttle valve 112 communicates with the humidifier 114 through the fifth pipeline 113, the humidifier 114 communicates with the stack 400 through the sixth pipeline 115, the first sensor 107 is provided on the third line 106, and the second sensor 116 is provided on the sixth line 115.

The fuel cell air intake system according to the above-described one embodiment of the present invention is provided, wherein the air intake box 101 is an air guide member, generally fixed to a vehicle body or a skin, for guiding air outside the vehicle cabin into the air filter; the air filter 103 is used for removing dust, impurities and toxic gases in the air; the air compressor 108 is used for pressurizing air to enable the pressure of the air to meet the use requirement of the fuel cell; the intercooler 110 is used for cooling air; the throttle valve 112 is used to control the intake air amount; the humidifier 114 is used to humidify the air to make the humidity of the air meet the use requirement of the fuel cell.

According to the fuel cell air intake system provided by the above embodiment of the present invention, the first sensor 107 is a temperature-humidity-pressure integrated sensor.

According to the fuel cell air intake system provided by the above embodiment of the present invention, the first sensor 107 is installed at one end of the third pipeline close to the air compressor.

According to the fuel cell air intake system provided by the above embodiment of the present invention, the second sensor 116 is a temperature-humidity-pressure integrated sensor.

According to the fuel cell air intake system provided by the above embodiment of the present invention, the air intake box 101 is fixedly installed at the side door air intake grill of the fuel cell vehicle.

It will of course be appreciated that whilst the foregoing has been given by way of example of the present invention, such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope of the invention as herein set forth. Therefore, while the invention has been described with reference to a preferred embodiment, it is not intended that the novel features be limited thereby, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the broad scope of the disclosure and claims.

Claims

1. A fuel cell air inlet system is characterized by comprising an air inlet box, a first pipeline, an air filter, a second pipeline, a flow meter, a third pipeline, a first sensor, an air compressor, a fourth pipeline, an intercooler, a three-way pipeline, a throttle valve, a fifth pipeline, a humidifier, a sixth pipeline and a second sensor, wherein the air inlet box is communicated with the air filter through the first pipeline, the air filter is communicated with the flow meter through the second pipeline, the flow meter is communicated with the air compressor through the third pipeline, the air compressor is communicated with the intercooler through the fourth pipeline, the intercooler is communicated with the first end of the three-way pipeline, the second end of the three-way pipeline is communicated with the throttle valve, the third end of the three-way pipeline is communicated with a galvanic pile, the throttle valve is communicated with the humidifier through the fifth pipeline, the humidifier is communicated with the galvanic pile through the sixth pipeline, the first sensor is arranged on the third pipeline, the second sensor is disposed on the sixth pipeline.

2. The fuel cell air intake system of claim 1, wherein the first sensor is a wet-warm-pressure integrated sensor.

3. The fuel cell air intake system of claim 1, wherein the first sensor is mounted on an end of the third conduit adjacent to the air compressor.

4. The fuel cell air intake system of claim 1, wherein the second sensor is a wet-warm-pressure integrated sensor.

5. The fuel cell air intake system of claim 1, wherein the air intake box is fixedly mounted at a side door air intake grill of the fuel cell vehicle.