Humidifier airtightness detection device for fuel cell engine

Abstract

The utility model relates to the technical field of humidifier detection, in particular to an airtight detection device for a humidifier for a fuel cell engine, which comprises an airtight tool bottom plate fixedly mounted with a port of the humidifier, and an air tap is fixedly mounted at the center of the airtight tool bottom plate. The airtight tool comprises an airtight tool bottom plate, a plurality of sets of through holes are fixedly formed in the airtight tool bottom plate, the through holes and a humidifier connector flange are installed in the airtight tool bottom plate, connecting check blocks are fixedly installed on the periphery of the airtight tool bottom plate, a check strip is fixedly installed at one end of each connecting check block, and the airtight tool bottom plate is installed at a humidifier air inlet end cover connector. Meanwhile, a plug is installed on the middle air nozzle and then connected into an inflation pipeline to detect the air tightness of the air nozzle, water is poured into the blocking strip, the blocking strip and the interior of the airtight tool bottom plate are separated through the connecting check block to form area grooves, a water groove is formed through the area grooves so that the air leakage position of an air inlet of the humidifier can be confirmed, and the installation position of the intercooler can be replaced; and detecting the airtightness between the airtight tool bottom plate and the humidifier.

Description

TECHNICAL FIELD

[0001] The utility model relates to humidifier detection technical field especially, relates to a humidifier air tightness detection device for fuel cell engine. BACKGROUND

[0002] At present, the number of domestic hydrogen fuel cell systems is less, mostly adopts the way of integrated intercooler, there are more problems in the test process of single humidifier, mainly in the test process, the intercooler needs to be installed at the air inlet interface of high-power humidifier, and then the air tightness test of the humidifier is carried out.

[0003] In the prior art, a patent with publication number CN215731811U discloses a detection device for the air tightness of a fuel cell air system, which comprises an air inlet throttle, a humidifier, a stack, an air outlet throttle and a plurality of groups of sensors.

[0004] The above structure can realize online judgment of whether the humidifier appears internal leakage problem through the values collected by the sensors and the operating current of the stack, but the intercooler installed with the humidifier is heavy to install, the installation position is narrow, the assembly is complex, and the air leakage position cannot be confirmed, so the air tightness between the air tightness tooling bottom plate and the humidifier cannot be detected. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a humidifier air tightness detection device for fuel cell engine to solve the problem of unable to confirm the air leakage position and unable to detect the air tightness between the air tightness tooling bottom plate and the humidifier.

[0006] In order to achieve the above purpose, the utility model provides a humidifier air tightness detection device for fuel cell engine, which comprises an air tightness tooling bottom plate fixedly installed with a humidifier port, a gas nozzle fixedly installed at the center of the air tightness tooling bottom plate, and a channel for accommodating a humidifier gas connection plug formed in the inside of the gas nozzle.

[0007] Preferably, the through hole is provided with at least 11 groups, and a notch is formed on one side of the air tightness tooling bottom plate, which is used for clamping with the top of the humidifier.

[0008] Preferably, the connecting block is installed at the center of the four sides of the airtight tool base plate by welding, and the connecting block and the blocking strip are both metal structural members.

[0009] Preferably, the blocking strip is in a rectangular structure, the width of the blocking strip is 20 mm, and the spacing between the blocking strip and the airtight tool base plate is 10 mm.

[0010] Preferably, the air nozzle is in an integrated forming structure with the airtight tool base plate, and the diameter of the air nozzle is 80 mm.

[0011] Preferably, the four sides of the airtight tool base plate are chamfered, and the size of the airtight tool base plate is smaller than the size of the top port of the humidifier.

[0012] The airtight tool base plate is installed at the humidifier air inlet end cover interface, the flange is connected between the through hole and the humidifier, the plug is installed in the middle air nozzle, the plug is connected to the air charging pipeline to detect the air tightness, water is poured into the blocking strip, the blocking strip is separated from the airtight tool base plate by the connecting block to form a region groove, the region groove forms a water tank to confirm the air leakage position of the humidifier air inlet, and the installation position of the intercooler is replaced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the whole utility model;

[0015] Figure 2 It is a front view structure schematic diagram of the utility model.

[0016] In the figure, the marks are: 1, airtight tool base plate; 2, air nozzle; 3, through hole; 4, blocking strip; 5, connecting block; 6, notch; 7, region groove; 8, channel. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further illustrate the present application in detail.

[0018] As Figure 1 , Figure 2As shown in the humidifier gas tightness detection device for fuel cell engine, a gas tight tool base plate 1 is fixedly installed at the humidifier port, a gas nozzle 2 is fixedly installed at the center of the gas tight tool base plate 1, and a channel 8 for accommodating a humidifier gas connection plug is formed in the gas nozzle 2; a plurality of groups of through holes 3 for installing a humidifier interface flange are fixedly installed in the gas tight tool base plate 1; a plurality of groups of connecting blocks 5 are fixedly installed around the gas tight tool base plate 1, and a plurality of groups of blocking strips 4 are fixedly installed at one end of the connecting blocks 5; the blocking strips 4 are separated from the gas tight tool base plate 1 by the connecting blocks 5 to form four groups of area grooves 7, and the area grooves 7 are used for detecting the gas tightness between the gas tight tool base plate 1 and the humidifier.

[0019] In the embodiment, the gas nozzle 2 is welded in the middle of the gas tight tool base plate 1, the gas tight tool base plate 1 is installed at the humidifier air inlet end cover interface, the flange connection between the through hole 3 and the humidifier is achieved, the plug of the middle gas nozzle 2 is installed, the plug is connected to the air charging pipeline to detect the gas tightness, water is poured into the blocking strip 4, the blocking strip 4 is separated from the gas tight tool base plate 1 by the connecting block 5 to form the area groove 7, the water groove is formed through the area groove 7 to confirm the air leakage position of the humidifier air inlet, and the gas tightness between the gas tight tool base plate 1 and the humidifier is detected.

[0020] As an embodiment, as shown in the humidifier gas tightness detection device for fuel cell engine, Figure 1 , Figure 2 As shown in the humidifier gas tightness detection device for fuel cell engine, at least 11 groups of through holes 3 are provided, and a notch 6 is formed on one side of the gas tight tool base plate 1, and the notch 6 is used for clamping the top of the humidifier.

[0021] In the embodiment, the gas tight tool base plate 1 is fixedly installed between a plurality of groups of through holes 3 and the humidifier by using the structural rigidity of the gas tight tool base plate 1 to improve the bending and torsion resistance, can withstand a larger force, is not easy to deform under vibration, makes the connection stable and reliable, the gas nozzle 2 is placed in the middle, the gas connection plug is convenient to install, the notch 6 makes it convenient to install and clamp into the humidifier base, and the humidifier base is more convenient and firm to install.

[0022] As an embodiment, as shown in the humidifier gas tightness detection device for fuel cell engine, Figure 1 , Figure 2 As shown in the humidifier gas tightness detection device for fuel cell engine, the connecting blocks 5 are welded and installed at the center around the gas tight tool base plate 1, and the connecting blocks 5 and the blocking strips 4 are metal structural parts.

[0023] The blocking strip 4 is a rectangular structure, the width of the blocking strip 4 is 20 mm, and the spacing between the blocking strip 4 and the gas tight tool base plate 1 is 10 mm.

[0024] The present embodiment is welded by connecting the blocking block 5 to connect the air-tight tool base plate 1 and the blocking strip 4, and the welding point is located at the middle position of the four edges of the air-tight tool base plate 1 to ensure the stability thereof; after the gas is filled, the appropriate amount of water is poured into the area groove 7 in the blocking strip 4, and if the bubbles occur in the air leakage hole 3, the air leakage position of the humidifier air inlet can be determined.

[0025] As an embodiment, as shown in Figure 1 、 Figure 2 The air nozzle 2 has a diameter of 80 mm, and the air nozzle 2 and the air-tight tool base plate 1 are integrally formed.

[0026] In the present embodiment, the air nozzle 2 with a diameter of 80 mm facilitates the welding, and the welding seam does not exceed the welding of the side plate surface, and the air nozzle 2 can be connected to the pipeline to test the air tightness, and the large-diameter air nozzle 2 can also be connected to the humidifier repair solution to repair the damaged membrane tube in the humidifier.

[0027] As an embodiment, as shown in Figure 1 The air-tight tool base plate 1 is provided with a chamfer around the periphery, and the size of the air-tight tool base plate 1 is smaller than the size of the top port of the humidifier.

[0028] In the present embodiment, the chamfer of the air-tight tool base plate 1 facilitates the installation of the humidifier top port.

[0029] Working principle: in use, the air nozzle 2 is welded in the middle of the air-tight tool base plate 1, the air-tight tool base plate 1 is installed at the humidifier air inlet end cover interface, the air nozzle 2 in the middle is installed with a plug, the plug is connected to the inflation pipeline to test the air tightness, water is poured into the blocking strip 4, the blocking strip 4 is separated from the air-tight tool base plate 1 by the connecting blocking block 5 to form an area groove 7, a water tank is formed through the area groove 7 to determine the air leakage position of the humidifier air inlet, and the subsequent repair liquid is used to repair the damaged membrane tube.

[0030] Those skilled in the art will understand that the discussion of any of the above embodiments is merely exemplary and is not intended to suggest that the scope (including claims) of the present application is limited to these examples; under the concept of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for the sake of brevity.

[0031] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A humidifier airtightness detection device for a fuel cell engine, comprising an airtight tool base plate (1) fixedly installed with a humidifier port, characterized in that, The center of the airtight tool base plate (1) is fixedly installed with an air nozzle (2), the inside of the air nozzle (2) is provided with a channel (8) for accommodating a humidifier air connection plug; the inside of the airtight tool base plate (1) is fixedly installed with a plurality of groups of through holes (3) installed with humidifier interface flanges; the periphery of the airtight tool base plate (1) is fixedly installed with connecting blocks (5), one end of a plurality of groups of the connecting blocks (5) is fixedly installed with a blocking strip (4), the blocking strip (4) is separated from the inside of the airtight tool base plate (1) by the connecting blocks (5) to form four groups of area grooves (7), and the area grooves (7) are used for detecting the airtightness between the airtight tool base plate (1) and the humidifier.

2. The humidifier leak detection apparatus for a fuel cell engine according to claim 1, wherein The through holes (3) are provided with at least 11 groups, and the side of the airtight tool base plate (1) is provided with a notch (6) for clamping with the top of the humidifier.

3. The humidifier leak detection apparatus for a fuel cell engine according to claim 1, wherein The connecting blocks (5) are welded and installed at the periphery center of the airtight tool base plate (1), and the connecting blocks (5) and the blocking strips (4) are metal structural parts.

4. The humidifier leak detection apparatus for a fuel cell engine according to claim 1, characterized by The blocking strip (4) is a rectangular structure, the width of the blocking strip (4) is 20mm, and the spacing between the blocking strip (4) and the airtight tool base plate (1) is 10mm.

5. The humidifier leak detection apparatus for a fuel cell engine according to claim 1, wherein The diameter of the air nozzle (2) is 80mm, and the air nozzle (2) and the airtight tool base plate (1) are integrally formed.

6. The humidifier leak detection apparatus for a fuel cell engine according to claim 1, wherein The periphery of the airtight tool base plate (1) is chamfered, and the size of the airtight tool base plate (1) is smaller than the size of the top of the humidifier.

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