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Liquid draining and supplementing control method and system suitable for fuel cell cooling system

A cooling system and control method technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of low maintenance efficiency of fuel cell cooling systems, achieve the effects of reducing the need for human resources, avoiding waste of resources, and saving time

Pending Publication Date: 2019-11-22
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method and system for controlling the emptying and rehydration of the fuel cell cooling system, which is used to solve the problem of low maintenance efficiency of the fuel cell cooling system

Method used

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  • Liquid draining and supplementing control method and system suitable for fuel cell cooling system
  • Liquid draining and supplementing control method and system suitable for fuel cell cooling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The emptying and replenishing liquid control system of the fuel cell cooling system includes a liquid replenishing device and a cooling circulation loop, and the cooling circulation loop includes a replenishing water tank, an emptying device, a controller, and a liquid level detection device for obtaining the liquid level of the replenishing water tank.

[0025] The following describes the evacuation and replenishment control system of the fuel cell cooling system in conjunction with the accompanying drawings, as figure 1 As shown, the emptying and replenishing control system includes a coolant tank, a replenishing water pump 1, a controller, a replenishing water tank, a radiator 4, a three-way valve 3, a cooling circulating water pump 2 and a fuel cell. The above-mentioned replenishment device is a coolant tank and a replenishment water pump 1 , the coolant tank is filled with coolant, and the emptying device is a cooling circulating water pump 2 .

[0026] The coolant...

Embodiment 2

[0033] The composition structure and connection relationship of the control system in this embodiment are the same as those in Embodiment 1, and will not be described here.

[0034] In this embodiment, a timing module is added to the controller in the automatic emptying liquid replenishing machine, and the controller can set the liquid replenishing time. When the liquid replenishing pump 1 is working, the liquid replenishing work will be counted down.

[0035] The specific implementation process is as follows. First, before the replenishment water pump 1 injects the coolant into the replenishment water tank, the working time of the replenishment water pump 1 is set (here we set the working time as H). When the replenishment water pump 1 injects the coolant into the replenishment water tank, the time begins to enter the countdown phase. When H>1min, the working process of the emptying replenishment replenishment control system is the same as that of Embodiment 1, that is, the re...

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Abstract

The invention relates to a liquid draining and supplementing control method and system suitable for a fuel cell cooling system, and belongs to the field of fuel cell auxiliary devices. The method comprises the steps of detecting the liquid level of a water supplementing tank, and carrying out the following liquid supplementing and emptying processes circularly; if the liquid level of the water supplementing tank is lower than L or M, starting to supplement the until the liquid level is greater than or equal to M, wherein M is a set maximum value, and L is a set minimum value; if the liquid level of the water supplementing tank is higher than M, starting to drain until the liquid level is smaller than or equal to L; when circulation reaches the preset times or lasts for the preset time or the liquid level is not lowered any more during the drainage process, ending the circulation, enabling the liquid level to be larger than or equal to M, so that the real-time control of theliquid drainage and supplement of the fuel cell cooling system is achieved when the special cooling liquid is added to a fuel cell, and the complete automatic liquid drainage and supplement is achieved. Accordingto the present invention, the after-sale maintenance efficiency is improved through the automatic liquid drainage and supplement, the after-sale maintenance time and the cost are saved, meanwhile, the manpower resources are saved, and the workshop production and technical debugging efficiency is improved.

Description

technical field [0001] The invention relates to a control method and system for emptying and replenishing fluid suitable for a fuel cell cooling system, and belongs to the field of fuel cell auxiliary devices. Background technique [0002] At present, hydrogen fuel cell vehicles are facing several major problems, such as short life, high cost, and poor maintenance convenience. This is the current status quo of the industry, which restricts the promotion and application of fuel cell technology. At present, various enterprises are vigorously developing long-life, low-cost, maintenance-free fuel cell systems to promote the commercial operation of fuel cell vehicles. [0003] At present, domestic hydrogen fuel cell manufacturers are all in their infancy, with insufficient overall strength and technology integration capabilities, and the development space of fuel cell systems needs to be improved. The cooling system of the fuel cell vehicle is arranged on the roof, and the fuel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04029
CPCH01M8/04029Y02P70/50Y02E60/50
Inventor 任正新杨春博张鹏凡闫晓云
Owner ZHENGZHOU YUTONG BUS CO LTD
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