Integrated fuel cell humidifying system

A fuel cell, integrated technology, used in fuel cells, fuel cell additives, solid electrolyte fuel cells, etc., can solve the problems of pipelines occupying a large space, occupying a large space, and installation space is limited, etc., to improve the weight-to-weight ratio power and volume specific power, small volume and weight, and the effect of taking up less space

Active Publication Date: 2009-05-06
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Although the above-mentioned design method can achieve the purpose of humidification, it has the following disadvantages: it is usually necessary to set up humidification devices for air and hydrogen separately for external humidification, and separate air humidification devices and hydrogen humidification devices themselves need to occupy a lot of space, and The pipes used in conjunction with it will also occupy a lot of space. When the fuel cell is used as an engine for city buses, cars or forklifts, the installation space is limited, and the volume and weight of the auxiliary system are too large, which will affect the efficiency of the fuel cell engine. wasted a lot of material

Method used

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Examples

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Effect test

Embodiment 1

[0035] like figure 1 As shown, the humidification system of a 50kw car engine has a length of 550mm, a width of 210mm, and a height of 240mm. 3. The air humidification stack 1 and the hydrogen humidification stack 2 are respectively arranged on both sides of the partition plate 3 to form an air-hydrogen integrated humidification device. Air enters from the air inlet pipe 12 on the side of the air humidification stack 1 to humidify After that, it flows out from the air outlet pipeline 13 on the hydrogen humidification stack 2 side, and the cooling water enters from the cooling water pipeline 11 on the air humidification stack side, flows out from the cooling water pipeline 23 on the hydrogen humidification stack 2 side, and the hydrogen flows from the hydrogen humidification stack The hydrogen inlet pipe 21 on the 2 side enters, and after humidification, it flows out from the hydrogen outlet pipe 22 on the 2 side of the hydrogen humidification stack.

[0036] like Figure 1~3...

Embodiment 2

[0042] see Figure 1 to Figure 6 , 100kw city bus fuel cell engine humidification system, length 600mm, width 400mm, height 300mm, the system includes air humidification stack, hydrogen humidification stack, air side end plate, hydrogen side end plate, partition, the partition There are cooling water diversion grooves on both sides of the plate, and cooling water inlet and outlet holes and hydrogen outlet holes are arranged on the upper and lower ends of the partition. The hydrogen outlet channel of the wet stack flows out; or the hydrogen flows in from the air-side end plate, passes through the hydrogen outlet channel and partition of the air humidification stack, enters the hydrogen humidification stack for humidification, and then flows out from the hydrogen side end plate.

[0043] The air enters the air humidification stack from the air side end plate and after being humidified, returns and flows out from the air side end plate, and the cooling water enters the humidifica...

Embodiment 3

[0045] see Figure 1 to Figure 6 , a humidification system for a forklift fuel cell engine, with a length of 300mm, a width of 250mm, and a height of 250mm. The system includes an air humidification stack, a hydrogen humidification stack, an air side end plate, a hydrogen side end plate, and a separator. Cooling water diversion grooves are provided on both sides of the partition, and cooling water inlet and outlet holes are provided at the left and right ends of the partition. Hydrogen enters the hydrogen humidifying stack from the hydrogen side end plate after humidification, and returns to flow out from the hydrogen side end plate. The air enters the air humidifying stack from the air-side end plate to be humidified, and returns to flow out from the air-side end plate. The cooling water enters the humidification system from the hydrogen side end plate and flows out from the air side end plate. The air humidification stack is composed of 10 sets of cooling water deflectors, 2...

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Abstract

The invention relates to an integrated fuel cell humidification system which comprises an air humidification reactor, a hydrogen gas humidification reactor, an air side end plate and a hydrogen gas side end plate. The air humidification reactor is formed by overlapping and assembling a plurality of groups of cooling water guide plates, humidification diaphragms and air guide plates in sequence; the hydrogen gas humidification reactor is formed by overlapping and assembling a plurality of groups of cooling water guide plates, humidification diaphragms and hydrogen gas guide plates in sequence; the system also comprises a baffle plate; the air humidification reactor and the hydrogen gas humidification reactor are respectively arranged on both sides of the baffle plate to form an air and hydrogen gas integrated humidification system; and air, hydrogen gas and cooling water respectively enter into or flow out of the humidification system from the side of the air humidification reactor or the hydrogen gas humidification reactor. Compared with the prior art, the invention has the advantages of simple structure, space conservation, and the like.

Description

technical field [0001] The invention relates to a fuel cell, in particular to an integration method of a proton exchange membrane fuel cell with an internal humidifying device. Background technique [0002] An electrochemical fuel cell is a device that converts hydrogen fuel and oxidant into electrical energy and reaction products. The internal core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode (MEA) is composed of a proton exchange membrane and two porous conductive materials, such as carbon paper, sandwiched between the two sides of the membrane. On the two boundary surfaces of the membrane and the carbon paper, there are even and finely dispersed catalysts for initiating electrochemical reactions, such as metal platinum catalysts. Conductive objects can be used on both sides of the membrane electrode to draw the electrons generated during the electrochemical reaction through an external circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/10H01M8/04119
CPCY02E60/521Y02E60/50
Inventor 胡里清章波李丽李拯
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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