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Fuel cell hydrogen supplying system based on combination valves and hydrogen charging and hydrogen supplying method of fuel cell hydrogen supplying system

A fuel cell and combined valve technology, applied in the container filling method, container discharge method, secondary battery, etc., can solve the problems of complex overall structure, large installation space, high cost, etc., and achieve compact system structure, reduced quantity, and easy operation simple effect

Active Publication Date: 2019-08-16
CRRC YANGTZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional hydrogen cylinder group needs to be equipped with a decompression system for each hydrogen cylinder, resulting in a complex overall structure, high cost, and excessive installation space

Method used

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  • Fuel cell hydrogen supplying system based on combination valves and hydrogen charging and hydrogen supplying method of fuel cell hydrogen supplying system
  • Fuel cell hydrogen supplying system based on combination valves and hydrogen charging and hydrogen supplying method of fuel cell hydrogen supplying system
  • Fuel cell hydrogen supplying system based on combination valves and hydrogen charging and hydrogen supplying method of fuel cell hydrogen supplying system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1~3 As shown, the combined valve-based fuel cell hydrogen supply system designed in the present invention includes an ECM control module 1, a hydrogen storage bottle set 2 and a piping system. in:

[0037] The hydrogen storage cylinder set 2 includes a main hydrogen cylinder 2.1 and two auxiliary hydrogen cylinders 2.2, and the quantity of the auxiliary hydrogen cylinders 2.2 can be expanded according to demand.

[0038] The pipeline system includes a hydrogen gas intake pipeline 6 , a hydrogen gas supply pipeline 7 , a hydrogen discharge pipeline 8 , a hydrogen recovery pipeline 9 and a gas cylinder interconnection pipeline 10 .

[0039] The hydrogen inlet and outlet of the main hydrogen cylinder 2.1 is provided with a main combination valve 3, and the hydrogen inlet and outlet of each auxiliary hydrogen cylinder 2.2 is respectively provided with an auxiliary combination valve 4. The main hydrogen cylinder 2.1 and the auxiliary hydrogen cylinder 2.2 a...

Embodiment 2

[0051] This embodiment provides a hydrogen charging and hydrogen supply method for the fuel cell hydrogen supply system in Embodiment 1, including a hydrogen charging process and a hydrogen supply process performed independently, wherein:

[0052] 1. The specific steps of the hydrogen charging process are as follows:

[0053] 1) Connect the hydrogen intake pipeline 6 to the upstream high-pressure hydrogen source through the charging valve 6.1;

[0054] 2) Open the ball valve 6.3 on the hydrogen gas inlet line 6, and the 70MPA (gauge pressure in the present invention) high-pressure hydrogen from the high-pressure hydrogen source is filtered by the primary filter 6.2 and then divided into three paths to enter a main combination valve 3 and Two auxiliary combination valves 4;

[0055] 3) The high-pressure hydrogen gas entering the main combination valve 3 is charged into the main hydrogen cylinder 2.1 through the main air intake inner pipe 3.1 and the main air intake check valve...

Embodiment 3

[0069] This embodiment provides another hydrogen charging and hydrogen supply method for the fuel cell hydrogen supply system in Embodiment 1, the main steps of which are the same as in Embodiment 2, the difference is that step 3) of this embodiment is specifically: when the main hydrogen cylinder 2.1 After the hydrogen inside is used up, first close the electric control decompression valve 3.6, and open the main gas cylinder interconnection electric control valve 3.7 and the auxiliary gas cylinder interconnection electric control valve 4.5, and then the auxiliary hydrogen cylinder 2.2 (one or two) The hydrogen cylinder 2.1 is inflated, and after the inflation is completed, the main gas cylinder interconnection electric control valve 3.7 and the auxiliary gas cylinder interconnection electric control valve 4.5 are closed, and then the fuel cell is supplied with gas according to steps 1) to 2).

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Abstract

The invention discloses a fuel cell hydrogen supplying system based on combination valves and a hydrogen charging and hydrogen supplying method of the fuel cell hydrogen supplying system. The hydrogensupplying system comprises an ECM control module, a hydrogen storage bottle set and a pipeline system. The hydrogen storage bottle set comprises a main hydrogen bottle and at least one auxiliary hydrogen bottle. The main combination valve is arranged on the main hydrogen bottle and comprises a gas inlet check valve, an electronic control pressure reduction valve, a main gas bottle interconnectionelectronic control valve and a main electronic control safety valve. The corresponding auxiliary combination valve is arranged on each auxiliary hydrogen bottle and comprises an auxiliary gas inlet check valve, an auxiliary gas bottle interconnection electronic control valve and an auxiliary electronic control safety valve. According to the hydrogen charging and hydrogen supplying method, after the pressure of high-pressure hydrogen is reduced to the pressure required by cell batteries through the electronic control pressure reduction valve in the main combination valve, the hydrogen is supplied to the fuel cells; and after the hydrogen in the main hydrogen bottle is used up, high-pressure hydrogen in the auxiliary hydrogen bottles is also supplied to the fuel cells after the pressure ofthe high-pressure hydrogen is reduced to the pressure required by the fuel cells through the electronic control pressure reduction valve in the main combination valve. The fuel cell hydrogen supplyingsystem and the hydrogen charging and hydrogen supplying method have the beneficial effects that the system structure is compact and the hydrogen storage capacity expansibility is high.

Description

technical field [0001] The invention relates to a hydrogen supply technology, in particular to a combined valve-based fuel cell hydrogen supply system and a hydrogen charging hydrogen supply method thereof. Background technique [0002] As the energy crisis becomes increasingly urgent, hydrogen energy has attracted widespread attention due to its advantages of cleanness, non-pollution, wide range of sources, and high energy storage density. As one of the important applications of hydrogen energy, hydrogen fuel cell vehicles are considered to be the most promising new energy vehicles to compete with power battery vehicles. The hydrogen supply system is the fuel source of hydrogen fuel cell products, and its safe and stable operation is very important. The existing hydrogen supply system uses no more than two 70MPa hydrogen storage cylinders with a volume of less than 100 liters to supply hydrogen to the system. For example, a hydrogen supply system for fuel cell vehicles dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/06F17C7/00F17C13/02F17C13/04F17C13/00
CPCF17C5/06F17C7/00F17C13/00F17C13/02F17C13/025F17C13/04F17C2205/0326F17C2221/012F17C2223/035F17C2250/03F17C2250/043F17C2270/0184Y02E60/32
Inventor 王民锋徐卫国何远新吕长乐
Owner CRRC YANGTZE CO LTD