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A pressure control device for fuel cells

A fuel cell and equipment technology, applied in fuel cell control, fuel cells, fuel cell additives, etc., can solve problems such as affecting the use and output power of the battery, inconsistency, and increased air pressure fluctuations, and achieve reasonable and effective use of space. , The effect of improving humidification efficiency and control speed

Active Publication Date: 2019-06-04
DEYANG JIUDING ZHIYUAN INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hydrogen and oxygen in the fuel cell must be fully humidified and maintained at pressure, if the pressure or humidity is not enough, it will easily cause fuel waste and indiscriminate combustion, which will affect the use and output power of the battery
[0003] When the existing hydrogen fuel cell is used, it is often necessary to adjust the air pressure, temperature, and humidity entering the fuel cell to ensure that the gas can be used. Because the air pressure entering the fuel cell has been controlled and proportioned for a long period of time, the air pressure Fluctuation increases, and it is easy to form a pressure difference between the two poles of the battery, causing damage to the battery, so the service life of the fuel cell

Method used

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  • A pressure control device for fuel cells
  • A pressure control device for fuel cells
  • A pressure control device for fuel cells

Examples

Experimental program
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Effect test

Embodiment 2

[0030] Such as figure 2 As shown, the present invention discloses a pressure control device for a fuel cell, which includes a tubular housing 2, in which a first isolation part 3 and a second isolation part 4 can be arranged in the body, and the housing 2 is divided into a gas chamber, a The air chamber, the pressure regulating chamber, the gas chamber and the pressure regulating chamber are sealed and isolated by the movable first isolation part 3, and the air chamber and the pressure regulating chamber are sealed and isolated by the movable second isolation part 4; the gas chamber is used to communicate with the gas source, and the air The chamber is used to communicate with the air source, and the pressure regulating chamber is used to communicate with the inflation and deflation device. The first isolation part 3 and the second isolation part 4 are in the shape of pistons; the pistons can slide along the side walls of the pipe body, and both sides of the pistons are respe...

Embodiment 3

[0034] Such as image 3 As shown, based on the pressure control device in Example 1, its method for hydrogen fuel cell 9:

[0035] Step 1: The MCU controls the spray pump to output water flow at a speed of 0.8-1.2L / min. The water mist nozzle sprays the water mist to the glass beads in a flat fan shape. The MCU controls the heating lamp to heat the gas cavity and the air cavity. The speed of 10-16m / s is sprayed into the humidity control chamber and humidified to the saturated humidity in the gap between the glass beads, and part of the over-humidified gas is absorbed by the glass beads to the saturated humidity, and flows out into the gas chamber / air chamber to be Heat to 80-85°C, and then output from the gas outlet / air outlet; the volume ratio of gas flow to water flow in the gas chamber and air chamber is 15-20:1;

[0036] Step 2: The pressure difference between the gas chamber and the pressure regulating chamber controls the movement of the first isolation part 3, and the p...

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Abstract

The invention relates to pressure control equipment for a fuel cell, and belongs to the field of associated equipment of a fuel cell, in particular to auxiliary pressure balance equipment for a fuel cell used in the field of new energy automobiles. The pressure control equipment comprises a tubular shell, wherein a first isolation part and a second isolation part are arranged in the shell; the inside of the shell is partitioned into a fuel gas cavity, an air cavity and a pressure-regulating cavity; the fuel gas cavity and the pressure-regulating cavity are sealed and isolated through the movable first isolation part; the air cavity and the pressure-regulating cavity are sealed and isolated through the movable second isolation part; the fuel gas cavity is used for communicating with a fuel gas source; the air cavity is used for communicating with an air source; the pressure-regulating cavity is used for communicating with an inflating and deflating device. In the structure, the pressure difference between the fuel gas cavity and the air cavity can be balanced in real time through the principle that the first isolation part and the second isolation part can move under the pressure difference; moreover, the air pressures in the fuel gas cavity and the air cavity can be regulated to a required air pressure range in real time through the pressure-regulating cavity; the pressure-regulating cavity is connected to the two sides of the fuel cell, so that pressure keeping and pressure balancing in the fuel cell are realized.

Description

technical field [0001] The invention relates to a pressure control device for fuel cells, which belongs to the field of supporting equipment for fuel cells, and specifically provides auxiliary pressure equalization equipment for fuel cells used in the field of new energy vehicles. Background technique [0002] Fuel cells are widely used, not only in military, space, power plant fields, but also in motor vehicles, mobile devices, households and other fields. Early fuel cell development focused on professional applications such as military space and distributed power generation above the kilowatt level. The field of electric vehicles has become the main direction of fuel cell applications, and a variety of automatic vehicles that use fuel cells to generate electricity have appeared in the market. In addition, the use of fuel cells in general consumer electronic products through miniaturization technology is also one of the application development directions. With the advancem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/04298H01M8/04746
CPCH01M8/04H01M8/04298H01M8/04746Y02E60/50
Inventor 陈福彦
Owner DEYANG JIUDING ZHIYUAN INTPROP OPERATION CO LTD
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