A rapid steam humidifying device

Abstract

The utility model relates to fuel cell stack test technical field, and disclose a kind of quick steam humidifying device, including test platform, the bottom of test platform is fixed and is communicated with steam drainage structure, the steam drainage structure includes steam storage tank, and the front end one side of steam storage tank is fixed with pressure gauge, the front end center of steam storage tank is communicated with steam outlet pipe, and one end of steam outlet pipe is communicated with first flow control valve, one end of first flow control valve is communicated with steam collecting pipe, and the top of steam collecting pipe is fixed with temperature sensor and humidity sensor in proper order.The utility model is integrated with the integration of test platform and steam drainage structure, the steam storage tank structure being set in platform plate bottom, when steam is needed, steam outlet pipe and steam collecting pipe connected by steam storage tank can be quickly discharged, save output path, avoid the phenomenon that traditional pipeline path is slowly discharged, simultaneously rely on the shunt pipe of arrangement large-scale coverage test space, improve steam humidifying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell stack testing technology, specifically a rapid steam humidification device. Background Technology

[0002] Fuel cell systems are used as driving or auxiliary power sources in vehicles, yachts, aerospace, and underwater propulsion equipment. They convert the chemical energy of reactants (fuel and oxidant) into electrical and thermal energy through an electrochemical reaction process. Proton exchange membrane fuel cells (PEMFCs) are the most widely used. To ensure efficient operation of PEMFC systems in optimal environments, the supplied reaction gases need to be heated and humidified. Therefore, precise and rapid control of the temperature and humidity of the reaction gases is crucial. Humidity control also needs to prevent the formation of liquid water. In fuel cell stack testing, the humidification and temperature control of hydrogen and oxygen are key technologies to ensure the proton exchange membrane (PEM) is in its optimal hydration state, directly affecting stack performance and lifespan. Insufficient humidity leads to dehydration of the PEM, a decrease in ionic conductivity, resulting in performance degradation or even damage. Conversely, excessive humidity can cause flooding, hindering gas diffusion to the catalyst layer and reducing reaction efficiency.

[0003] In existing technologies, when fuel cells are tested using a fuel cell stack test platform, it is necessary to precisely control the temperature, humidity, and delivery pressure within the test platform. The mainstream method in traditional temperature and humidity control is to pre-humidify the reaction gas using an external humidifier, such as liquid water injection or bubbling, to form steam, which is then delivered into the platform in a single stream to achieve heating and humidification.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings:

[0005] The aforementioned steam humidification device delivers steam to the platform using a single stream. This delivery method is slow to respond when temperature and humidity need to be adjusted, and the adjustment time is relatively long, which affects the normal temperature and humidity ratio of the fuel cell test platform. In addition, continuous testing often occurs during fuel cell stack testing, which means that if the steam humidification response speed is slow, it will affect the fuel cell stack testing under different operating conditions. Therefore, a fast steam humidification device is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a rapid steam humidification device. Through the integrated combination of a test platform and a steam exhaust structure, a steam storage tank structure is set at the bottom of the platform plate. When steam is needed, it can be quickly discharged through the steam outlet pipe and steam collection pipe connected to the steam storage tank, saving the output path and avoiding the slow discharge phenomenon of traditional pipeline paths. At the same time, the distributed diversion pipes cover a large area of ​​the test space, improving the steam humidification efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid steam humidification device, comprising a test platform, the bottom of which is fixed and connected to a steam exhaust structure, the steam exhaust structure comprising a steam storage tank, a pressure gauge fixed to one side of the front end of the steam storage tank, a steam outlet pipe connected to the center of the front end of the steam storage tank, one end of the steam outlet pipe connected to a first flow control valve, one end of the first flow control valve connected to a steam collecting pipe, a temperature sensor and a humidity sensor sequentially fixed to the top of the steam collecting pipe, diverter pipes arranged sequentially on both sides of the steam collecting pipe, and a spray head fixed to the end of the diverter pipe, an electric heating tube frame fixed inside the steam storage tank, a steam inlet pipe fixed to the center of the rear end of the steam storage tank, the steam inlet pipe connected to a second flow control valve, and a solenoid valve connected to the side of the steam storage tank, one end of the solenoid valve connected to a pressure relief pipe.

[0008] Preferably, the two ends of the steam storage tank are connected to the steam outlet pipe and the steam inlet pipe, and the electric heating tube frame is fixedly connected to the inside of the steam storage tank.

[0009] Preferably, the second flow control valve is connected to the inside of the steam storage tank through the steam inlet pipe, and the first flow control valve is connected to the inside of the steam storage tank through the steam outlet pipe.

[0010] Preferably, the steam collecting pipe is connected to the inside of the steam storage tank through a first flow control valve and a steam outlet pipe, and the inside of the steam collecting pipe is connected to a temperature sensor and a humidity sensor.

[0011] Preferably, the diverter pipes are arranged at equal intervals along both sides of the steam collecting pipe, and the steam collecting pipes are connected to the spray head through the diverter pipes.

[0012] Preferably, the test platform includes a platform plate, and a test surface is fixed at the center of the top surface of the platform plate. The top surface of the test surface is provided with a mounting hole. Spray holes are distributed at both ends of the platform plate. A heat insulation layer is attached to the bottom surface of the platform plate. A control panel is fixed on one side of the front end of the platform plate. The control panel is connected to a temperature sensor, a humidity sensor, and a solenoid valve via wiring.

[0013] Preferably, the spray holes are symmetrically arranged and opened along both ends of the platform plate, and the heat insulation layer attached to the bottom surface of the platform plate is made of XPS extruded polystyrene board.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model integrates a testing platform with a steam exhaust structure. The steam storage tank structure set at the bottom of the platform plate can temporarily store the generated steam and quickly discharge it when needed. The steam is directly discharged through the steam outlet pipe and steam collection pipe connected to the steam storage tank, saving the output path and avoiding the slow discharge phenomenon of traditional pipeline paths. At the same time, the distributed diversion pipes cover a large area of ​​the test space, improving the steam humidification efficiency. Meanwhile, the electric heating tube rack inside the steam storage tank can maintain a stable steam temperature, and the pressure gauge at the front end allows the user to easily control the steam storage in the steam storage tank. With the help of the pressure relief pipe, the internal pressure can be released in time to maintain the safety of the test process.

[0016] 2. The test surface on the top of the steam humidification device platform can be fixed with the test fixtures using the equally spaced mounting holes to assist in the structure during battery testing. During testing, the insulation layer attached to the bottom of the platform is made of XPS extruded polystyrene board, which has a lower thermal conductivity, high strength and moisture resistance, and can be used for long-term battery testing to avoid the influence of temperature and humidity at the bottom of the platform.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the testing platform of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the steam exhaust structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the gas storage tank of this utility model.

[0022] In the diagram: 1. Test platform; 101. Platform plate; 102. Test surface; 103. Mounting hole; 104. Spray hole; 105. Insulation layer; 106. Control panel; 2. Steam exhaust structure; 201. Steam storage tank; 202. Pressure gauge; 203. Steam outlet pipe; 204. First flow control valve; 205. Steam collecting pipe; 206. Temperature sensor; 207. Humidity sensor; 208. Diverter pipe; 209. Spray head; 210. Electric heating tube rack; 211. Steam inlet pipe; 212. Second flow control valve; 213. Solenoid valve; 214. Pressure relief pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This embodiment of a rapid steam humidification device includes a test platform 1. The bottom end of the test platform 1 is fixed and connected to a steam exhaust structure 2. The test platform 1 includes a platform plate 101, and a test surface 102 is fixed at the center of the top surface of the platform plate 101. The top surface of the test surface 102 is provided with a mounting hole 103. Spray holes 104 are distributed at both ends of the platform plate 101. A heat insulation layer 105 is attached to the bottom surface of the platform plate 101. A control panel 106 is fixed to one side of the front end of the platform plate 101. The control panel 106 is connected to a temperature sensor 206, a humidity sensor 207, and a solenoid valve 213 via wiring.

[0025] like Figure 1-4 As shown, the rapid steam humidification device of this invention is similar in structure to existing steam humidification devices. The main improvement lies in the integrated combination of the test platform 1 and the steam exhaust structure 2. The steam storage tank 201 structure at the bottom of the platform plate 101 allows for rapid steam discharge through the steam outlet pipe 203 and steam collection pipe 205 connected to the steam storage tank 201 when steam is needed, saving on the output path and avoiding the slow discharge phenomenon of traditional pipeline paths. Simultaneously, the distributed diversion pipes 208 cover a large area of ​​the test space, improving steam humidification efficiency. The temperature sensor 206 and humidity sensor 207 in this invention are existing technologies. When using this intelligent steam humidification device, the platform plate 101 can be combined with the test platform. The platform plate 101 is equipped with… After the test environment is set up, the spray holes 104 at both ends of the platform plate 101 are connected to the spray head 209 of the steam exhaust structure 2 below. After the test starts, the steam temperature and humidity information of the temperature sensor 206 and humidity sensor 207 can be controlled through the control panel 106. At the same time, the pressure relief can be regulated by the solenoid valve 213 to ensure the steam pressure is stable. The test surface 102 on the top surface of the platform plate 101 can be fixed with the test fixture with the equally spaced mounting holes 103 to assist the structure during the battery test. During the test, the heat insulation layer 105 attached to the bottom surface of the platform plate 101 is made of XPS extruded board material, which has a lower thermal conductivity, high strength and moisture resistance, and can be used for long-term battery testing to avoid the influence of temperature and humidity at the bottom of the platform.

[0026] like Figure 2-4As shown, the steam exhaust structure 2 includes a steam storage tank 201, and a pressure gauge 202 is fixed to one side of the front end of the steam storage tank 201. A steam outlet pipe 203 is connected to the center of the front end of the steam storage tank 201, and one end of the steam outlet pipe 203 is connected to a first flow control valve 204. One end of the first flow control valve 204 is connected to a steam collecting pipe 205, and a temperature sensor 206 and a humidity sensor 207 are fixed in sequence at the top of the steam collecting pipe 205. Diverter pipes 208 are arranged in sequence on both sides of the steam collecting pipe 205, and the ends of the diverter pipes 208 are fixed. The device includes a spray head 209. An electric heating tube frame 210 is fixed inside the steam storage tank 201. A steam inlet pipe 211 is fixed at the center of the rear end of the steam storage tank 201. The steam inlet pipe 211 is connected to a second flow control valve 212, and a solenoid valve 213 is connected to the side of the steam storage tank 201. One end of the solenoid valve 213 is connected to a pressure relief pipe 214. In use, the flange of the steam inlet pipe 211 can be connected and fixed to the pipeline at the steam generation point. The steam inlet efficiency can be adjusted by the second flow control valve 212 connected to the steam inlet pipe 211. Steam enters the steam storage tank 201 through the steam inlet pipe 211 for temporary storage. When steam is needed for release, the first flow control valve 204 controls the steam in the storage tank 201 to be discharged through the steam collecting pipe 205. Simultaneously, the steam is discharged onto the platform plate 101 via the spray nozzles 209 through the branch pipes 208 distributed on both sides, forming a rapid steam exhaust and humidification process. This device, through the integrated combination of the test platform 1 and the steam exhaust structure 2, and the steam storage tank 201 structure located at the bottom of the platform plate 101, can temporarily store the generated steam for use when needed. Steam is rapidly discharged directly through the steam outlet pipe 203 and steam collector pipe 205 connected to the steam storage tank 201, saving on output path and avoiding the slow discharge phenomenon of traditional pipeline paths. At the same time, the distributed diversion pipes 208 cover a large area of ​​the test space, improving steam humidification efficiency. Meanwhile, the electric heating tube rack 210 inside the steam storage tank 201 can maintain a stable steam temperature, while the pressure gauge 202 at the front end allows users to easily control the steam reserve in the steam storage tank 201. With the help of the pressure relief pipe 214, the internal pressure can be released in a timely manner to maintain the safety of the test process.

[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rapid steam humidification device, comprising a test platform (1), characterized in that, The bottom of the test platform (1) is fixed and connected to a steam exhaust structure (2). The steam exhaust structure (2) includes a steam storage tank (201), and a pressure gauge (202) is fixed to one side of the front end of the steam storage tank (201). A steam outlet pipe (203) is connected to the center of the front end of the steam storage tank (201), and one end of the steam outlet pipe (203) is connected to a first flow control valve (204). One end of the first flow control valve (204) is connected to a steam collecting pipe (205), and a temperature sensor (206) and a moisture meter are fixed to the top of the steam collecting pipe (205) in sequence. A temperature sensor (207) is provided. Diverter pipes (208) are arranged in sequence on both sides of the steam collection pipe (205), and a spray head (209) is fixed at the end of the diverter pipe (208). An electric heating tube frame (210) is fixed inside the steam storage tank (201). A steam inlet pipe (211) is fixed at the center of the rear end of the steam storage tank (201). The steam inlet pipe (211) is connected to a second flow control valve (212). A solenoid valve (213) is connected to the side of the steam storage tank (201). One end of the solenoid valve (213) is connected to a pressure relief pipe (214).

2. The rapid steam humidification device according to claim 1, characterized in that, The steam storage tank (201) is connected at both ends to the steam outlet pipe (203) and the steam inlet pipe (211), and the electric heating tube frame (210) is fixedly connected to the inside of the steam storage tank (201).

3. The rapid steam humidification device according to claim 1, characterized in that, The second flow control valve (212) is connected to the inside of the steam storage tank (201) through the steam inlet pipe (211), and the first flow control valve (204) is connected to the inside of the steam storage tank (201) through the steam outlet pipe (203).

4. The rapid steam humidification device according to claim 1, characterized in that, The steam collecting pipe (205) is connected to the inside of the steam storage tank (201) through the first flow control valve (204) and the steam outlet pipe (203), and the inside of the steam collecting pipe (205) is connected to the temperature sensor (206) and the humidity sensor (207).

5. The rapid steam humidification device according to claim 1, characterized in that, The diverter pipe (208) is arranged at equal intervals on both sides of the steam collecting pipe (205), and the steam collecting pipe (205) is connected to the spray head (209) through the diverter pipe (208).

6. The rapid steam humidification device according to claim 1, characterized in that, The test platform (1) includes a platform plate (101), and a test surface (102) is fixed at the center of the top surface of the platform plate (101). The top surface of the test surface (102) is provided with a mounting hole (103). Spray holes (104) are distributed at both ends of the platform plate (101). A heat insulation layer (105) is attached to the bottom surface of the platform plate (101). A control panel (106) is fixed on one side of the front end of the platform plate (101). The control panel (106) is connected to a temperature sensor (206), a humidity sensor (207), and a solenoid valve (213) through wiring.

7. A rapid steam humidification device according to claim 6, characterized in that, The spray holes (104) are symmetrically arranged and opened along both ends of the platform plate (101), and the heat insulation layer (105) attached to the bottom surface of the platform plate (101) is made of XPS extruded board.

Images