CN211784120U - Quick leak hunting device for fuel cell stack - Google Patents
Quick leak hunting device for fuel cell stack Download PDFInfo
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- CN211784120U CN211784120U CN202020078442.9U CN202020078442U CN211784120U CN 211784120 U CN211784120 U CN 211784120U CN 202020078442 U CN202020078442 U CN 202020078442U CN 211784120 U CN211784120 U CN 211784120U
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Abstract
The utility model discloses a quick leak hunting device of fuel cell dress pile, include: the press machine is used for pressing the cell stack; the leakage detecting plate is arranged on the press machine, and a first end surface through hole, a second end surface through hole and a third end surface through hole which are matched with the first end plate of the cell stack are formed in one end surface of the leakage detecting plate; a first side through hole communicated with the first end surface through hole, a second side through hole communicated with the second end surface through hole and a third side through hole communicated with the third end surface through hole are formed in one side surface of the leakage detecting plate; three pressure gauges for indicating the pressure of the closed system; and the three-way connecting pieces are respectively communicated with the first side through hole, the second side through hole, the third side through hole and the three pressure gauges. The utility model discloses a quick leak hunting device of fuel cell stack can realize directly carrying out the leak hunting after the battery stack compresses tightly, and convenient and fast has simplified the stack of fuel cell stack, the process of leaking hunting greatly, has improved production efficiency.
Description
Technical Field
The utility model relates to the technical field of fuel cells,
in particular, the utility model relates to a quick leak hunting device of fuel cell dress pile.
Background
A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. The method is a fourth power generation technology after hydroelectric power generation, thermal power generation and atomic power generation. The assembly of the device is formed by cumulatively overlapping dozens or hundreds of polar plates, sealing gaskets and membrane electrodes. The leakage phenomenon can occur at a certain probability after the assembly is finished, the leakage phenomenon can cause the performance of the cell stack to be greatly reduced and can not reach the predicted performance parameters, the leakage causes include that a polar plate is broken, a sealing gasket is not pressed well, a membrane electrode is mixed with air, and the like, the current stacking process is that a stacking press presses the cell stack by using a certain pressure and then locks screws on the cell stack, the cell stack can be tested for leakage after being lifted out of the press, the large cell stack has about 60KG, the working difficulty is increased to a certain extent, once the leakage phenomenon is found, the cell stack needs to be lifted back to the press again to be pressed, and the screws are loosened again, so the leakage testing process is very complicated, the labor power consumption and the time consumption are low, and the stacking efficiency is not satisfactory.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a quick leak hunting device for fuel cell stacking.
In order to solve the above problem, the utility model adopts the following technical scheme:
a rapid leak detection device for fuel cell stacking, comprising:
the press machine is used for pressing the cell stack;
the leakage detecting plate is arranged on the press machine, and a first end surface through hole, a second end surface through hole and a third end surface through hole which are matched with the first end plate of the cell stack are formed in one end surface of the leakage detecting plate; a first side through hole communicated with the first end surface through hole, a second side through hole communicated with the second end surface through hole and a third side through hole communicated with the third end surface through hole are formed in one side surface of the leakage detecting plate;
three pressure gauges for indicating the pressure of the closed system; and
and the three-way connecting pieces are respectively communicated with the first side through hole, the second side through hole, the third side through hole and the three pressure gauges.
Preferably, the fuel cell further comprises a sealing gasket, wherein the sealing gasket is arranged between the leak detection plate and the first end plate of the cell stack; and the sealing pad is provided with ventilation through holes corresponding to the first end surface through hole, the second end surface through hole and the third end surface through hole.
Preferably, the leakage detecting plate is further provided with a positioning hole, and the positioning hole is matched with a positioning pin on the first end plate of the cell stack and used for rapid positioning and assembly when the cell stack is pressed for leakage detection; and the sealing pad is also provided with a positioning through hole corresponding to the positioning hole.
Preferably, the leakage detecting device further comprises a first base plate, the first base plate is arranged on the press machine, and the leakage detecting plate is arranged on the first base plate.
Preferably, the leakage detecting plate is further provided with a fixing hole for fixing with the first base plate.
Preferably, the cell stack further comprises a second backing plate, and the second backing plate is placed between the press and the second end plate of the cell stack.
Compared with the prior art, the utility model discloses a technological effect mainly embodies:
the utility model discloses a quick leak hunting device of fuel cell dress pile can realize directly carrying out the leak hunting after the battery dress pile compresses tightly, need not to pile the battery and lift off from the dress pile press, and convenient and fast has simplified the dress of fuel cell pile greatly, has leaked the process, has improved production efficiency.
Drawings
Fig. 1 is a schematic overall structure diagram of a rapid leak detection device for fuel cell stacking according to an embodiment of the present invention;
fig. 2 is a schematic partially exploded view of a rapid leak detection device for fuel cell stacking according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an end plate of a fuel cell stack according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a leak detection plate of a rapid leak detection device for fuel cell stacking according to an embodiment of the present invention.
In the figure, 1, a press machine, 2, a leakage detecting plate, 3, a pressure gauge, 4, a first cushion plate, 5, a second cushion plate, 6, a cell stack, 7, a sealing gasket, 8, a three-way connecting piece, 21, a first end surface through hole, 22, a second end surface through hole, 23, a third end surface through hole, 24, a fixing hole, 25, a positioning hole, 61, a first end plate, 62, a second end plate, 211, a first side surface through hole, 221, a second side surface through hole, 231, a third side surface through hole, 621, a fuel through hole, 622, a water through hole, 623 and an air through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The embodiment of the utility model provides a quick leak hunting device of fuel cell dress pile, the structure is as shown in figure 1, figure 2, figure 4, include: a press 1 for pressing the cell stack 6; the leak detection plate 2 is arranged on one pressure surface of the press machine 1, and a first end surface through hole 21, a second end surface through hole 22 and a third end surface through hole 23 which are matched with a first end plate 61 of the cell stack 6 are formed in one end surface of the leak detection plate 2; a first side through hole 211 communicated with the first end surface through hole 21, a second side through hole 221 communicated with the second end surface through hole 22 and a third side through hole 231 communicated with the third end surface through hole 23 are formed in one side surface of the leakage detecting plate 2; three pressure gauges 3 for indicating the pressure of the closed system; and three-way connecting pieces 8 which are respectively communicated with the first side through hole 211, the second side through hole 221, the third side through hole 231 and the three pressure gauges 3, namely, one interface of each three-way connecting piece 8 is connected with one side through hole, the other interface is connected with the pressure gauge, and the third interface is used for filling leakage-detecting gas into the closed system.
An embodiment of the utility model provides a structural schematic of fuel cell stack end plate, the structure is shown in fig. 3, with 2 matched with batteries of leak hunting the board pile first end plate 61 on seted up fuel through-hole 621 for to fuel cell pile 6 let in the reaction gas, like H2(ii) a A water through hole 622 for passing water to the fuel cell stack 6; and an air through hole 623 for introducing reaction air to the fuel cell stack 6. When the leakage is detected, the fuel cell stack 6 and the leakage detection plate 2 matched with the fuel cell stack are tightly pressed by the press machine 1, the first end face through hole 21 on the leakage detection plate 2 is communicated with the fuel through hole 621, the second end face through hole 22 is communicated with the water through hole 622, the third end face through hole 23 is communicated with the air through hole 623, the leakage detection gas is filled into the cell stack 6 through the inflation inlet of the three-way connecting piece 8, and then the three inflation inlets are closed for pressure maintaining. Whether the sealing system of the cell stack 6 leaks air is judged through the pressure indication of the three pressure gauges 3.
The utility model discloses a quick leak hunting device of fuel cell dress pile is through adorning one at a pressure surface of press 1 and survey bushing 2, hole on surveying bushing 2 terminal surface corresponds with liquid opening and gas circuit mouth on the first end plate 61 of cell pile 6, 2 side through-holes of leak hunting board pass through three way connection spare 8 and manometer 3 and gas circuit pipe and link to each other, press 1 can directly carry out the leak hunting on press 1 after 6 dress piles of cell pile compress tightly, judge cell pile 6 at once through the pressurize condition of seeing manometer 3 and have leakage gas, both convenient and fast, the dress pile has been improved greatly again, leak hunting efficiency.
Preferably, in order to enhance the sealing effect of the leakage detecting device, the rapid leakage detecting device for fuel cell stack of the present invention further comprises a sealing gasket 7 disposed between the leakage detecting plate 2 and the first end plate 61 of the cell stack 6; the sealing gasket 7 is provided with ventilation through holes corresponding to the first end surface through hole 21, the second end surface through hole 22 and the third end surface through hole 23.
Preferably, the leak detection plate 2 is further provided with a positioning hole 25, and the positioning hole 25 is matched with a positioning pin on the first end plate 61 of the cell stack 6 and used for quick positioning and assembling when the cell stack 6 is pressed for leak detection; the sealing gasket 7 is also provided with a positioning through hole corresponding to the positioning hole 25.
In order to prevent the pressure surface direct contact of the leak hunting device and the press 1, protect the press 1, preferably, the utility model discloses a quick leak hunting device of fuel cell dress heap still includes first backing plate 4, arranges the press 1 in on, and leak hunting board 2 is placed on first backing plate 4.
More preferably, the leak detection plate 2 is further provided with a fixing hole 24 for fixing with the first pad 4 by means of a screw or a bolt, so that the leak detection device is more stable in a compressed state.
Preferably, the rapid leak hunting device for fuel cell stacking of the present invention further comprises a second pad 5 disposed between the press 1 and the second end plate 62 of the cell stack 6. The second base plate 5 can prevent the leakage detection device from directly contacting with the other pressure surface of the press machine 1 on one hand, and protect the press machine 1; on the other hand, the side of the second end plate 62 of the cell stack 6 is usually connected with an electrode structure so that the second end plate 62 cannot be directly pressed, and therefore, assistance of the second mat 5 is required so that its face contacting the press 1 is kept horizontal.
The present invention is not limited to the above-described specific embodiments, and various modifications and changes are possible. Any modification, equivalent replacement, improvement and the like of the above embodiments according to the technical spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. A rapid leak hunting device for fuel cell stacking, comprising:
the press machine is used for pressing the cell stack;
the leakage detecting plate is arranged on the press machine, and a first end surface through hole, a second end surface through hole and a third end surface through hole which are matched with the first end plate of the cell stack are formed in one end surface of the leakage detecting plate; a first side through hole communicated with the first end surface through hole, a second side through hole communicated with the second end surface through hole and a third side through hole communicated with the third end surface through hole are formed in one side surface of the leakage detecting plate;
three pressure gauges for indicating the pressure of the closed system; and
and the three-way connecting pieces are respectively communicated with the first side through hole, the second side through hole, the third side through hole and the three pressure gauges.
2. The fuel cell stack quick leak detector of claim 1, further comprising a gasket disposed between said leak detector and said first end plate of said stack; and the sealing pad is provided with ventilation through holes corresponding to the first end surface through hole, the second end surface through hole and the third end surface through hole.
3. The rapid leak detection device for fuel cell stack assembly according to claim 2, wherein the leak detection plate is further provided with a positioning hole, and the positioning hole is matched with the positioning pin on the first end plate of the cell stack for rapid positioning and assembly when the cell stack is pressed for leak detection; and the sealing pad is also provided with a positioning through hole corresponding to the positioning hole.
4. The fuel cell stack rapid leak detection device according to claim 2, further comprising a first pad plate disposed on the press, wherein the leak detection plate is disposed on the first pad plate.
5. The rapid leak hunting device for fuel cell stacking according to claim 4, wherein said leak hunting plate further comprises a fixing hole for fixing with said first pad.
6. The fuel cell stack quick leak detector of claim 4, further comprising a second spacer interposed between said press and said second end plate of said stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020078442.9U CN211784120U (en) | 2020-01-15 | 2020-01-15 | Quick leak hunting device for fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020078442.9U CN211784120U (en) | 2020-01-15 | 2020-01-15 | Quick leak hunting device for fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211784120U true CN211784120U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020078442.9U Active CN211784120U (en) | 2020-01-15 | 2020-01-15 | Quick leak hunting device for fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211784120U (en) |
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2020
- 2020-01-15 CN CN202020078442.9U patent/CN211784120U/en active Active
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