Bubbling, spraying and humidifying device of fuel cell test board

Abstract

The utility model provides a bubbling, spraying and humidifying device of a fuel cell test board. The bubbling, spraying and humidifying device comprises a humidifying tank body and an inner core, wherein the humidifying tank body comprises a heat preservation tank blind plate structure, a double-layer heat preservation tank structure and a deionized water tank structure; the inner core comprises a bubbling humidifying structure and a straight pipe spiral fin structure; the bubbling humidifying structure is arranged in the deionized water tank structure, and the straight pipe spiral fin structure is connected with an inner chuck connector in the heat preservation tank blind plate structure through a sealing ring and a fast-assembling chuck in a sealed mode. According to the bubbling, spraying and humidifying device disclosed by the utility model, through a combined structure of bubbling, spraying, double-layer heat preservation and spiral fin cyclone separation, gas enters the spiral fin cyclone separation to separate condensed water after being humidified by bubbling and spraying of the liquid water spraying pipe, and enters the double-layer heat preservation structure at the same time; the humidifying gas is prevented from being condensed to generate liquid water, the purposes of evaporation of circulating water in the tank body and separation of condensed water are achieved, and the requirement for any saturation humidity under different flows can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell stack performance test technical field, especially relates to a kind of bubbling spray humidification device of fuel cell test bench. BACKGROUND

[0002] In the fuel cell stack production process, the performance of the stack needs to be detected and calibrated, and the bubbling humidification structure is the core humidification device in the test equipment, which provides stable humidification effect and arbitrary relative humidity for the fuel cell. The existing bubbling humidification structure is a single container filled with liquid water and glass beads at the bottom. The inlet gas is directly connected to the bottom of the container through a straight pipe and contacts with the small balls that can increase the evaporation area. Finally, the gas near the bubble is discharged through another pipe on the liquid surface. The advantage of this basic bubbling humidification structure is that the supersaturated condensate water generated during the humidification process can be quickly separated, reducing the problem of membrane electrode channel water blockage caused by condensate water entering the fuel cell, and the relative humidity is controlled by external circulation heating and heat exchange to control the water vapor mixture dew point temperature of the deionized water in the tank. However, the bubbling humidification structure has a significant decrease in humidification effect in high-power fuel test equipment, because the contact time between high-flow gas and water in the bubbling structure is reduced, which cannot achieve high-flow humidification effect, and is only suitable for small-flow fuel cell stacks, which has great limitations. SUMMARY

[0003] The utility model provides a kind of bubbling spray humidification device of fuel cell test bench to solve the technical problems in the above background technology.

[0004] The utility model solves the above technical problems by the following technical solutions:

[0005] The utility model provides a kind of bubbling spray humidification device of fuel cell test bench. The bubbling spray humidification device includes a humidification tank body and an inner core, the inner core is arranged in the humidification tank body,

[0006] The humidification tank body includes a heat preservation tank blind plate structure, a double-layer heat preservation tank structure and a deionized water tank structure, the heat preservation tank blind plate structure is sealed and fixed with the double-layer heat preservation tank structure by sealing ring and quick-mounting clamp; the double-layer heat preservation tank structure is sealed and fixed with the deionized water tank structure by the sealing ring and the quick-mounting clamp;

[0007] The inner core includes a bubbling humidification structure and a straight pipe spiral fin structure, the bubbling humidification structure is fixed with the straight pipe spiral fin structure by sealing ring quick-mounting clamp;

[0008] The bubbling humidification structure is arranged in the deionized water tank structure, and the straight pipe spiral fin structure is sealed and connected with the inner chuck interface in the heat preservation tank blind plate structure by the sealing ring and quick-mounting chuck.

[0009] Preferably, the heat preservation tank blind plate structure comprises a heat preservation tank blind plate, a temperature sensor, a humidity sensor, a pressure sensor, a mechanical pressure relief valve, a gas inlet chuck interface, and a gas outlet chuck interface.

[0010] The temperature sensor, the humidity sensor, the pressure sensor, and the mechanical pressure relief valve are fixed on the outside of the heat preservation tank blind plate through an internal thread mounting support, and the gas inlet chuck interface and the gas outlet chuck interface are welded on the heat preservation tank blind plate.

[0011] The inside of the heat preservation tank blind plate is provided with the internal chuck interface and an internal outlet pipe, the internal chuck interface corresponds to the gas inlet chuck interface, and the internal outlet pipe is connected with the gas outlet chuck interface.

[0012] Preferably, the double-layer heat preservation tank structure comprises a heat preservation tank outer layer and a heat preservation tank inner layer, the top end of the heat preservation tank outer layer is provided with a first chuck joint, the first chuck joint is connected with the heat preservation tank blind plate structure, the lower left side of the heat preservation tank outer layer is provided with a heat preservation circulating water inlet chuck joint, the upper right side of the heat preservation tank outer layer is provided with a heat preservation circulating water outlet chuck joint, and the heat preservation circulating water outlet chuck joint is connected with a heat exchange device.

[0013] The lower end of the heat preservation tank inner layer is provided with a second chuck joint, and the second chuck joint is connected with the deionized water tank structure.

[0014] Preferably, the heat preservation tank outer layer and the heat preservation tank inner layer are welded and sealed by a stainless steel round plate.

[0015] Preferably, the deionized water tank structure comprises a fixed support and a deionized water tank, the deionized water tank is installed on the fixed support, the lower left side of the deionized water tank is provided with a deionized water tank circulating outlet, and the upper right side of the deionized water tank is provided with a deionized water tank circulating inlet; the inside of the deionized water tank circulating inlet is provided with a clamping groove, and the clamping groove is used for installing a spray pipe.

[0016] Preferably, the bottom of the fixed support is welded with a first internal thread mounting seat, and is assembled with a stainless steel pipe sleeve joint; the fixed support is a bent sheet metal support, and a fixed through hole is formed in the bent edge of the bent sheet metal support.

[0017] Preferably, the middle and lower parts of the tank wall of the deionized water tank are respectively provided with the internal thread mounting supports, a transparent pipe is installed between the two internal thread mounting supports, and a liquid level sensor is installed on the transparent pipe.

[0018] Preferably, the bubble humidification structure comprises an upper air resistance plate, a lower air resistance plate, an air resistance wall, and an air resistance pipe,

[0019] The upper air blocking plate and the lower air blocking plate are surrounded by the air blocking wall to form a closed bubble humidifying chamber, a center hole is formed in the center of the upper air blocking plate, and bottom holes are formed around the center hole for inserting the air blocking pipe.

[0020] Preferably, the materials of the upper air blocking plate, the lower air blocking plate, the air blocking wall and the air blocking pipe are metal powder sintering materials.

[0021] Preferably, the straight pipe spiral fin structure comprises a straight pipe chuck joint, a center pipe and spiral fins, the straight pipe chuck joint is arranged on the center pipe, one end of the center pipe is connected with the inner chuck interface, the other end penetrates through the center hole and communicates with the bubble humidifying chamber, and the spiral fins are equidistantly and spirally distributed on the center pipe.

[0022] The positive progress effect of the utility model lies in that the utility model provides a bubble spraying humidifying device of fuel cell test bench. The bubble spraying humidifying device comprises a humidifying tank body and an inner core, the humidifying tank body comprises a heat preservation tank blind plate structure, a double-layer heat preservation tank structure and a deionized water tank structure; the inner core comprises a bubble humidifying structure and a straight pipe spiral fin structure; the bubble humidifying structure is arranged in the deionized water tank structure, and the straight pipe spiral fin structure is sealedly connected with the inner chuck interface in the heat preservation tank blind plate structure through a sealing ring and a quick-mounting chuck. The bubble spraying humidifying device of the utility model is provided with a combined structure of bubble, spraying, double-layer heat preservation and spiral fin cyclone separation, after gaseous water is separated by spiral fin cyclone separation after being humidified by bubble humidifying and liquid water spraying pipe spraying humidifying, and entering double-layer heat preservation structure, the purpose of separating condensed water is achieved, the evaporation of circulating water in the tank body and the separation of condensed water are realized, and the purpose of realizing the evaporation of circulating water in the tank body and the separation of condensed water is achieved, and the purpose of realizing the evaporation of circulating water in the tank body and the separation of condensed water is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a three-dimensional structure schematic view of the bubble spraying humidifying device of the utility model.

[0024] Fig. 2 It is a plane structure schematic view of the bubble spraying humidifying device of the utility model.

[0025] Fig. 3 It is a plane structure schematic view of the bubble humidifying structure of the utility model.

[0026] Legend: 1. Blind flange structure of the insulated tank; 2. Double-layer insulated tank structure; 3. Deionized water tank structure; 4. Bubble humidification structure; 5. Straight tube spiral fin structure; 11. Blind flange of the insulated tank; 12. Gas inlet chuck interface; 13. Gas outlet chuck interface; 14. Inner chuck interface; 15. Inner outlet pipe; 21. Outer layer of the insulated tank; 22. Inner layer of the insulated tank; 24. Insulated circulating water inlet chuck connector; 25. Insulation Circulating water outlet chuck connector; 31. Fixed support; 32. Deionized water tank; 33. Deionized water tank circulation outlet; 34. Deionized water tank circulation inlet; 35. Spray pipe; 36. Transparent pipe; 37. Liquid level sensor; 41. Upper air baffle; 42. Lower air baffle; 43. Air baffle wall; 44. Air baffle pipe; 45. Bubble humidification chamber; 51. Straight pipe chuck connector; 52. Central tube; 53. Spiral fins. Detailed Implementation

[0027] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0028] Example 1

[0029] like Figs. 1-3 As shown, this embodiment provides a bubbling spray humidification device for a fuel cell test bench. The bubbling spray humidification device includes a humidification tank and an inner core. The inner core is disposed in the humidification tank. The humidification tank includes an insulated tank blind flange structure 1, a double-layer insulated tank structure 2, and a deionized water tank structure 3. The insulated tank blind flange structure 1 and the double-layer insulated tank structure 2 are sealed and fixed together by a sealing ring and a quick-release clamp. The double-layer insulated tank structure 2 and the deionized water tank structure 3 are sealed and fixed together by a sealing ring and a quick-release clamp. The inner core includes a bubbling humidification structure 4 and a straight tube spiral fin structure 5. The bubbling humidification structure 4 and the straight tube spiral fin structure 5 are fixed together by a sealing ring and a quick-release clamp. The bubbling humidification structure 4 is disposed in the deionized water tank structure 3. The straight tube spiral fin structure 5 is sealed and connected to the inner chuck interface 14 inside the insulated tank blind flange structure 1 by a sealing ring and a quick-release chuck.

[0030] In this embodiment, the heat preservation tank blind flange structure 1 includes a heat preservation tank blind flange 11, a temperature sensor, a humidity sensor, a pressure sensor, a mechanical pressure relief valve, a gas inlet chuck interface 12, and a gas outlet chuck interface 13. The temperature sensor, humidity sensor, pressure sensor, and mechanical pressure relief valve are fixed to the outside of the heat preservation tank blind flange 11 by internal thread mounting seats. The gas inlet chuck interface 12 and the gas outlet chuck interface 13 are welded to the heat preservation tank blind flange 11. An inner chuck interface 14 and an inner outlet pipe 15 are provided on the inner side of the heat preservation tank blind flange 11. The inner chuck interface 14 corresponds to the gas inlet chuck interface 12, and the inner outlet pipe 15 is connected to the gas outlet chuck interface 13.

[0031] In the embodiment, the double-layer insulation tank structure 2 comprises an insulation tank outer layer 21 and an insulation tank inner layer 22. The top end of the insulation tank outer layer 21 is provided with a first chuck joint 23, and the first chuck joint 23 is connected with the insulation tank blind plate structure 1. The lower left side of the insulation tank outer layer 21 is provided with an insulation circulating water inlet chuck joint 24, and the upper right side of the insulation tank outer layer 21 is provided with an insulation circulating water outlet chuck joint 25, which is connected with the heat exchange equipment. The lower end of the insulation tank inner layer 22 is provided with a second chuck joint 26, which is connected with the deionized water tank structure 3. The insulation tank outer layer 21 and the insulation tank inner layer 22 are welded and sealed by a stainless steel round plate.

[0032] In the embodiment, the deionized water tank structure 3 comprises a fixed support 31 and a deionized water tank 32. The deionized water tank 32 is installed on the fixed support 31. The lower left side of the deionized water tank 32 is provided with a deionized water tank circulating outlet 33, and the upper right side of the deionized water tank 32 is provided with a deionized water tank circulating inlet 34. The deionized water tank circulating inlet 34 is internally provided with a clamping groove for installing a spray pipe 35.

[0033] In the embodiment, the bottom of the fixed support 31 is welded with a first internal threaded mounting seat, and is assembled with a stainless steel pipe clamping sleeve joint. The fixed support 31 is a bent sheet metal support, and the bent edge of the bent sheet metal support is provided with a fixed through hole. The middle and lower part of the tank wall of the deionized water tank 32 are respectively provided with internal threaded mounting seats, and a transparent tube 36 is installed between the two internal threaded mounting seats. A liquid level sensor is installed on the transparent tube 36.

[0034] As shown in Fig. 3 In the embodiment, the bubble humidification structure 4 comprises an upper air resistance plate 41, a lower air resistance plate 42, an air resistance wall 43 and an air resistance pipe 44. The upper air resistance plate 41 and the lower air resistance plate 42 are surrounded by the air resistance wall 43 to form a closed bubble humidification chamber 45. A central hole is formed in the center of the upper air resistance plate 41, and bottom holes are formed around the central hole for inserting the air resistance pipe 44. The materials of the upper air resistance plate 41, the lower air resistance plate 42, the air resistance wall 43 and the air resistance pipe 44 are all metal powder sintering materials.

[0035] In the embodiment, the straight pipe spiral fin structure 5 comprises a straight pipe chuck joint 51, a central pipe 52 and spiral fins 53. The straight pipe chuck joint 51 is arranged on the central pipe 52. One end of the central pipe 52 is connected with the inner chuck interface 14, and the other end penetrates through the central hole to communicate with the bubble humidification chamber 45. The spiral fins 53 are equidistantly and spirally distributed on the central pipe 52.

[0036] The embodiment provides a bubbling spray humidifying device of a fuel cell test bench.

[0037] The working principle of the utility model is: when the test equipment starts to work, the deionized water tank circulation outlet 33 draws the deionized water in the humidifying tank through the water pump, enters the heat preservation circulating water inlet chuck joint 24 of the double-layer heat preservation tank after heating, then comes out from the heat preservation circulating water outlet chuck joint 25 of the double-layer heat preservation tank, enters the deionized water tank circulation inlet 34 of the deionized water tank 32 after passing through the heat exchange equipment, here, a metal powder sintering pipe can spray into the deionized water tank 32 tank body, after completing the cycle spray humidification heat preservation start, the gas enters from the gas inlet chuck interface 12, enters the bubbling humidification chamber 45 through the straight pipe chuck joint 51 of the central pipe 52 of the straight pipe spiral fin structure 5, the gas sprays from the gas resistance pipe 44 and the gas resistance wall 43 made of metal powder sintering material in the deionized water and mixes with the deionized water, then separates through the spiral fin 53 after spraying water, and the humidified gas can be obtained from the gas outlet chuck interface 13.

[0038] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A bubbler-sprayer humidification apparatus for a fuel cell test stand, characterized by, The bubble spray humidifying device comprises a humidifying tank body and an inner core, The humidifying tank body comprises a heat preservation tank blind plate structure, a double-layer heat preservation tank structure and a deionized water tank structure, the heat preservation tank blind plate structure and the double-layer heat preservation tank structure are sealed and fixed through a sealing ring and a quick-mounting clamp; the double-layer heat preservation tank structure and the deionized water tank structure are sealed and fixed through the sealing ring and the quick-mounting clamp; The inner core comprises a bubble humidifying structure and a straight pipe spiral fin structure, the bubble humidifying structure and the straight pipe spiral fin structure are fixed through a sealing ring and a quick-mounting clamp; The bubble humidifying structure is arranged in the deionized water tank structure, the straight pipe spiral fin structure is connected to the inner chuck interface in the heat preservation tank blind plate structure through the sealing ring and the quick-mounting chuck; The heat preservation tank blind plate structure comprises a heat preservation tank blind plate, a temperature sensor, a humidity sensor, a pressure sensor, a mechanical pressure relief valve, a gas inlet chuck interface and a gas outlet chuck interface; The temperature sensor, the humidity sensor, the pressure sensor and the mechanical pressure relief valve are fixed on the outside of the heat preservation tank blind plate through an inner thread mounting support, and the gas inlet chuck interface and the gas outlet chuck interface are welded on the heat preservation tank blind plate; The inner side of the heat preservation tank blind plate is provided with the inner chuck interface and an inner outlet pipe, the inner chuck interface corresponds to the gas inlet chuck interface, and the inner outlet pipe is connected to the gas outlet chuck interface; The double-layer heat preservation tank structure comprises a heat preservation tank outer layer and a heat preservation tank inner layer, the heat preservation tank outer layer is provided with a first chuck joint at the top end, the first chuck joint is connected to the heat preservation tank blind plate structure, a heat preservation circulating water inlet chuck joint is arranged below the left side of the heat preservation tank outer layer, a heat preservation circulating water outlet chuck joint is arranged above the right side of the heat preservation tank outer layer, and the heat preservation circulating water outlet chuck joint is connected to a heat exchange device; The lower end of the heat preservation tank inner layer is provided with a second chuck joint, and the second chuck joint is connected to the deionized water tank structure; The heat preservation tank outer layer and the heat preservation tank inner layer are welded and sealed by a stainless steel round plate; The deionized water tank structure comprises a fixed support and a deionized water tank, the deionized water tank is arranged on the fixed support, a deionized water tank circulating outlet is arranged below the left side of the deionized water tank, and a deionized water tank circulating inlet is arranged above the right side of the deionized water tank; the deionized water tank circulating inlet is provided with a clamping groove, and the clamping groove is used for mounting a spray pipe; A first inner thread mounting seat is welded on the bottom of the fixed support, and a stainless steel pipe sleeve joint is assembled; the fixed support is a bent sheet metal support, and a fixed through hole is arranged in the bent edge of the bent sheet metal support; The middle and lower parts of the tank wall of the deionized water tank are respectively provided with the inner thread mounting supports, a transparent pipe is arranged between the two inner thread mounting supports, and a liquid level sensor is arranged on the transparent pipe; The bubble humidifying structure comprises an upper gas resistance plate, a lower gas resistance plate, a gas resistance wall and a gas resistance pipe, The upper air blocking plate and the lower air blocking plate are surrounded by the air blocking wall to form a closed bubble humidification chamber, a center hole is arranged at the center of the upper air blocking plate, and bottom holes are arranged around the center hole, which are used for inserting the air blocking pipe; The materials of the upper air blocking plate, the lower air blocking plate, the air blocking wall and the air blocking pipe are all metal powder sintering materials; The straight pipe spiral fin structure comprises a straight pipe chuck joint, a center pipe and spiral fins, the straight pipe chuck joint is arranged on the center pipe, one end of the center pipe is connected with the inner chuck interface, the other end penetrates through the center hole and communicates with the bubble humidification chamber, and the spiral fins are equidistantly and spirally distributed on the center pipe.

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