Steam generator for testing fuel cell

Abstract

The utility model relates to the technical field of steam generating devices, and discloses a steam generator for testing a fuel cell, which comprises a steam tank body, a steam discharge pipe arranged at the upper part of the steam tank body, a condensate water circulating pipe arranged at the lower part of the steam tank body, and a water inlet pipe arranged at the middle position of one side of the steam tank body, a mounting plate is arranged on the side, away from the water inlet pipe, of the steam tank body, a circular rotating plate is fixedly mounted on one side of the mounting plate, a mounting opening matched with the rotating plate is formed in one side of the steam tank body, a plurality of equidistant array heating devices are arranged on one side of the rotating plate, and a plurality of atomizing nozzles are fixedly mounted on the upper side face, located in the steam tank body, of the water inlet pipe; and a first driving motor for driving the rotating plate to rotate is arranged on one side of the mounting plate. According to the steam generating device, water mist sprayed by the atomizing nozzle in an atomizing mode touches the heating device rotating to the upper portion of the rotating plate, the water mist generates steam and moves upwards, the generated steam moves upwards and does not make secondary contact with the heating device, and the steam generating efficiency of the whole device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of steam generating devices, specifically a steam generator for fuel cell testing. Background Technology

[0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy. After production, fuel cells need to be tested. When testing fuel cells, a steam generator is used to generate high-temperature gas to conduct high-temperature tests on the fuel cells.

[0003] A search revealed a patent, CN218240754U, which discloses a rapid steam humidification and temperature control device for a fuel cell testing platform. This device includes a gas flow controller, one side of which is fixedly connected to a three-way valve. The three-way valve splits the gas supplied by the gas flow controller into two parts: a room-temperature dry gas input mechanism for room-temperature dry gas and a superheated high-pressure gas input mechanism for superheated high-pressure gas. This invention utilizes the Venturi effect and a high-temperature atomizing nozzle to mix superheated high-pressure gas with superheated saturated water vapor under the ejection action of the superheated high-pressure gas, and then mixes it with room-temperature dry gas. This achieves three-way gas flow, temperature, and humidity control. Subsequently, it can quickly and accurately adjust the gas flow, pressure, temperature, and humidity according to different operating conditions of the fuel cell stack, solving the problems of slow temperature and humidity response, poor control accuracy, and untimely gas pressure response in fuel cell testing benches.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned prior art describes a process where water is delivered to an evaporator via a delivery pipe and then atomized and sprayed out through atomizing nozzles. This atomized water is then heated by a water-electric heater to generate high-temperature steam. However, in practice, the atomized water sprayed downwards from the nozzles comes into contact with the high-temperature water-electric heater, generating high-temperature steam. But when the high-temperature steam generated on the surface of the water-electric heater below the nozzles rises, it comes into contact with the descending water mist, causing some of the steam to condense. This reduces the efficiency of the steam generator. Therefore, there is an urgent need in the art to improve the steam generator to address the shortcomings of the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a steam generator for fuel cell testing, thereby improving the overall steam generation efficiency of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steam generator for fuel cell testing, comprising a steam tank, a steam discharge pipe at the top of the steam tank, a condensate circulation pipe at the bottom of the steam tank, a water inlet pipe at the middle of one side of the steam tank, a mounting plate on the side of the steam tank away from the water inlet pipe, a circular rotating plate fixedly mounted on one side of the mounting plate, an installation port adapted to the rotating plate on one side of the steam tank, a plurality of equidistant array heating devices fixedly mounted on one side of the rotating plate, a plurality of atomizing nozzles fixedly mounted on the upper side of the water inlet pipe inside the steam tank, and a first drive motor for driving the rotating plate to rotate on one side of the mounting plate.

[0008] Preferably, a support base is fixedly installed on one side of the steam tank, and an mounting base is provided on the upper part of the support base, with the first drive motor fixedly installed on one side of the mounting base.

[0009] Preferably, a sliding block is fixedly installed at the lower end of the mounting base, and a sliding groove adapted to the sliding block is opened on the upper part of the bearing base. A second drive motor is fixedly installed at one end of the bearing base, and an adjusting screw with one end fixedly installed at the output end of the second drive motor is rotatably connected in the sliding groove. The adjusting screw passes through the sliding block and is threadedly connected to it.

[0010] Preferably, a mounting block is fixedly installed at one end of the heating device, and a mounting bolt with one end threadedly connected to the mounting block passes through the mounting plate.

[0011] Preferably, a first sealing ring is embedded on one side of the mounting block, and one side of the first sealing ring abuts against the side of the rotating plate.

[0012] Preferably, the diameter of the mounting plate is larger than the diameter of the rotating plate, and the mounting plate completely covers the mounting opening.

[0013] Preferably, a second sealing ring is embedded on one side of the mounting plate, and the side of the second sealing ring abuts against the side of the steam tank.

[0014] To address the shortcomings of existing technologies, this invention provides a steam generator for fuel cell testing, overcoming these deficiencies. The beneficial effects of this invention are as follows:

[0015] 1. In this utility model, the water mist sprayed by the atomizing nozzle touches the heating device that rotates to the top of the rotating plate, and the water mist generates steam and moves upward. By the steam moving upward without making secondary contact with the heating device, the steam generation efficiency of the overall device is improved.

[0016] 2. In this utility model, the first drive motor drives several heating devices to rotate continuously. The heating device in contact with the mist gradually rotates to the lower position and separates from the mist. At this time, the heating device is continuously heated to increase its temperature. After being reheated, the heating device rotates to the upper position again to contact the mist, further improving the steam generation efficiency of the overall device.

[0017] 3. In this utility model, the second drive motor drives the mounting base to move, and the mounting base drives the mounting plate and the rotating plate to move, so that the heating device can be completely removed from the steam tank, and the heating device can be installed or replaced, which facilitates the installation or later maintenance and replacement of the heating device.

[0018] 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

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the steam tank in this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting plate in this utility model;

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 for Figure 3 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Steam tank; 2. Steam exhaust pipe; 3. Condensate circulation pipe; 4. Water inlet pipe; 5. Mounting plate; 6. Rotating plate; 7. Mounting port; 8. Heating device; 9. Atomizing nozzle; 10. First drive motor; 11. Support seat; 12. Mounting seat; 13. Second drive motor; 14. Sliding groove; 15. Adjusting screw; 16. Mounting block; 17. Mounting bolt; 18. First sealing ring; 19. Second sealing ring; 20. Sliding block. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 A steam generator for fuel cell testing includes a steam tank 1, a steam discharge pipe 2 at the top of the steam tank 1, a condensate circulation pipe 3 at the bottom of the steam tank 1, a water inlet pipe 4 at the middle of one side of the steam tank 1, a mounting plate 5 on the side of the steam tank 1 away from the water inlet pipe 4, a circular rotating plate 6 fixedly mounted on one side of the mounting plate 5, an installation port 7 adapted to the rotating plate 6 on one side of the steam tank 1, a plurality of equidistant array heating devices 8 fixedly mounted on one side of the rotating plate 6, a plurality of atomizing nozzles 9 fixedly mounted on the upper side of the water inlet pipe 4 inside the steam tank 1, and a first drive motor 10 for driving the rotating plate 6 to rotate on one side of the mounting plate 5.

[0028] Specifically, when high-temperature testing of the fuel cell is required, filtered water is pumped to the inlet pipe 4 located inside the steam tank 1 via a water pump. The water is atomized and sprayed upwards through atomizing nozzles 9. Simultaneously, several heating devices 8 are activated, and the first drive motor 10 is also activated. The output of the first drive motor 10 drives the mounting plate 5 and the rotating plate 6 to rotate. The water mist sprayed from the atomizing nozzles 9 touches the heating device 8 that has rotated to the top of the rotating plate 6, generating steam that moves upwards. By ensuring that the generated steam moves upwards without secondary contact with the heating device 8, the steam generation efficiency of the overall device is improved. The high-temperature steam is then transported to the fuel cell testing position through the steam exhaust pipe 2 to test the fuel cell. During high-temperature testing, due to continuous contact with the mist, if the power of the heating device 8 is not increased, the temperature of the heating device 8 in continuous contact with the mist will gradually decrease. The first drive motor 10 drives several heating devices 8 to rotate continuously. The heating device 8 in contact with the mist gradually rotates to the lower position and disengages from the mist. At this time, by continuously heating the heating device 8, the temperature of the heating device 8 is increased. After being reheated, the heating device 8 rotates to the upper position again to contact the mist, further improving the steam generation efficiency of the overall device. It is worth noting that when the mounting plate 5 and the rotating plate 6 rotate, the mounting plate 5 and the rotating plate 6 are sealed with the mounting port 7. This sealing technology is a known existing technology.

[0029] As a technical optimization of this utility model, a support seat 11 is fixedly installed on one side of the steam tank 1, and an mounting seat 12 is provided on the upper part of the support seat 11. A first drive motor 10 is fixedly installed on one side of the mounting seat 12, and a sliding block 20 is fixedly installed on the lower end of the mounting seat 12. A sliding groove 14 adapted to the sliding block 20 is opened on the upper part of the support seat 11. A second drive motor 13 is fixedly installed on one end of the support seat 11. An adjusting screw 15 with one end fixedly installed to the output end of the second drive motor 13 is rotatably connected in the sliding groove 14. The adjusting screw 15 passes through the sliding block 20 and is threadedly connected to it.

[0030] Specifically, when the heating device 8 needs to be installed or replaced later, the second drive motor 13 is started. The output end of the second drive motor 13 drives the adjusting screw 15 to rotate. When the adjusting screw 15 rotates, it drives the sliding block 20 to slide in the sliding groove 14. The sliding block 20 drives the mounting base 12 to move. The first drive motor 10 is fixedly installed on the side of the mounting base 12. The output end of the first drive motor 10 passes through the mounting base 12 and is fixedly installed with the mounting plate 5. The mounting base 12 drives the mounting plate 5 and the rotating plate 6 to move, so that the heating device 8 can be completely removed from the steam tank 1. This facilitates the installation or later maintenance and replacement of the heating device 8.

[0031] As a technical optimization of this utility model, a mounting block 16 is fixedly installed at one end of the heating device 8. A mounting bolt 17, one end of which is threadedly connected to the mounting block 16, passes through the mounting plate 5. A first sealing ring 18 is embedded on one side of the mounting block 16. One side of the first sealing ring 18 abuts against the side of the rotating plate 6. When installing the heating device 8, the first sealing ring 18 is embedded in one side of the mounting block 16. One end of the mounting bolt 17 passes through the mounting plate 5 and the rotating plate 6. One end of the mounting bolt 17 is threadedly connected to one side of the mounting block 16. Tightening the mounting bolt 17 fixes the heating device 8, which facilitates the fixation of the heating device 8. The first sealing ring 18 provides a sealing effect.

[0032] As a technical optimization of this utility model, the diameter of the mounting plate 5 is larger than that of the rotating plate 6, the mounting plate 5 completely covers the mounting opening 7, and a second sealing ring 19 is embedded on one side of the mounting plate 5. The side of the second sealing ring 19 abuts against the side of the steam tank body 1. When the rotating plate 6 is engaged in the mounting opening 7, the mounting plate 5 completely covers the position of the mounting opening 7, and the second sealing ring 19 achieves a sealing effect.

[0033] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power cords, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power cords. The main controller can be a conventional known device such as a computer that plays a control role.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steam generator for fuel cell testing, comprising a steam tank (1), a steam discharge pipe (2) at the upper part of the steam tank (1), and a condensate circulation pipe (3) at the lower part of the steam tank (1), characterized in that, A water inlet pipe (4) is provided in the middle of one side of the steam tank (1). A mounting plate (5) is provided on the side of the steam tank (1) away from the water inlet pipe (4). A circular rotating plate (6) is fixedly installed on one side of the mounting plate (5). An installation port (7) adapted to the rotating plate (6) is opened on one side of the steam tank (1). Several equidistant array heating devices (8) are fixedly installed on one side of the rotating plate (6). Several atomizing nozzles (9) are fixedly installed on the upper side of the water inlet pipe (4) inside the steam tank (1). A first drive motor (10) for driving the rotating plate (6) to rotate is provided on one side of the mounting plate (5).

2. A steam generator for fuel cell testing according to claim 1, characterized in that, A support seat (11) is fixedly installed on one side of the steam tank (1), and an mounting seat (12) is provided on the upper part of the support seat (11). The first drive motor (10) is fixedly installed on one side of the mounting seat (12).

3. A steam generator for fuel cell testing according to claim 2, characterized in that, A sliding block (20) is fixedly installed at the lower end of the mounting base (12). A sliding groove (14) adapted to the sliding block (20) is opened on the upper part of the bearing base (11). A second drive motor (13) is fixedly installed at one end of the bearing base (11). An adjusting screw (15) with one end fixedly installed at the output end of the second drive motor (13) is rotatably connected in the sliding groove (14). The adjusting screw (15) passes through the sliding block (20) and is threadedly connected to it.

4. A steam generator for fuel cell testing according to claim 1, characterized in that, A mounting block (16) is fixedly installed on one end of the heating device (8), and a mounting bolt (17) with one end threadedly connected to the mounting block (16) passes through the mounting plate (5).

5. A steam generator for fuel cell testing according to claim 4, characterized in that, The mounting block (16) has a first sealing ring (18) embedded on one side, and one side of the first sealing ring (18) abuts against the side of the rotating plate (6).

6. A steam generator for fuel cell testing according to claim 1, characterized in that, The diameter of the mounting plate (5) is larger than that of the rotating plate (6), and the mounting plate (5) completely covers the mounting opening (7).

7. A steam generator for fuel cell testing according to claim 6, characterized in that, A second sealing ring (19) is embedded on one side of the mounting plate (5), and the side of the second sealing ring (19) abuts against the side of the steam tank body (1).

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