Waterway purging device of hydrogen fuel cell system

Abstract

The utility model relates to the technical field of hydrogen fuel cell systems, in particular to a hydrogen fuel cell system waterway purging device which comprises a fuel cell system, a main waterway and an auxiliary waterway are arranged on a heat dissipation waterway in the fuel cell system, the main waterway comprises a main water inlet and a main water outlet which are arranged on the heat dissipation waterway, and the auxiliary waterway comprises a main water outlet and an auxiliary water outlet which are arranged on the heat dissipation waterway. The main water inlet and the main water outlet are connected with a main water inlet pipe and a main water outlet pipe respectively, the auxiliary water way comprises an auxiliary water inlet and an auxiliary water outlet which are formed in the heat dissipation water way, and the auxiliary water inlet and the auxiliary water outlet are connected with an auxiliary water inlet pipe and an auxiliary water outlet pipe respectively. Through the arrangement of related structures, water in a main heat dissipation system of a fuel cell engine can be quickly dried, quick switching between ionized water and anti-freezing liquid is facilitated, the recovery purity of the anti-freezing liquid cannot be affected, the water in a pipeline of the heat dissipation system can be measured more conveniently and quickly by arranging the water sensor at the air outlet, and the measurement accuracy is improved. And automatic management can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cell systems, in particular to a waterway purging device for a hydrogen fuel cell system. Background Art

[0002] The demand for hydrogen energy engines has increased, and the heat dissipation system at the end of fuel cell testing needs to purge it.

[0003] When purging the heat dissipation system currently, multi-path purging cannot be carried out simultaneously, which reduces the purging efficiency, and the moisture in the pipeline of the heat dissipation system cannot be measured after purging, resulting in incomplete purging. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a waterway purging device for a hydrogen fuel cell system to solve the problems of not being able to simply and quickly clean the moisture in the main heat dissipation system of the fuel cell engine and measure the moisture in the pipeline after cleaning.

[0005] Based on the above purpose, the utility model provides a waterway purging device for a hydrogen fuel cell system, including a fuel cell system, and a main waterway and an auxiliary waterway are arranged on the heat dissipation waterway inside the fuel cell system. The main waterway includes a main water inlet and a main water outlet arranged on the heat dissipation waterway. A main water inlet pipe and a main water outlet pipe are respectively connected to the main water inlet and the main water outlet. The auxiliary waterway includes an auxiliary water inlet and an auxiliary water outlet arranged on the heat dissipation waterway. An auxiliary water inlet pipe and an auxiliary water outlet pipe are respectively connected to the auxiliary water inlet and the auxiliary water outlet. The main water inlet pipe and the auxiliary water inlet pipe are adjacent and are located between the main water outlet pipe and the auxiliary water outlet pipe;

[0006] An air supply part is arranged between the main water inlet pipe and the auxiliary water inlet pipe. An air discharge part one and an air discharge part two are respectively arranged on the main water outlet pipe and the auxiliary water outlet pipe. The air supply part supplies air to the main water inlet pipe and the auxiliary water inlet pipe. The air entering the main water inlet pipe sequentially passes through the main water inlet, the main water outlet and the main water outlet pipe, and is discharged through the air discharge part one. The air entering the auxiliary water inlet pipe sequentially passes through the auxiliary water inlet, the auxiliary water outlet and the auxiliary water outlet pipe, and is discharged through the air discharge part two.

[0007] Preferably, the air supply part includes a three-way valve two and a three-way valve three. Two of the connection ends on the three-way valve two are installed on the main water inlet pipe. Two of the connection ends on the three-way valve three are installed on the auxiliary water inlet pipe. A communication pipe is installed between the three-way valve two and the three-way valve three. A fan is connected to the communication pipe.

[0008] Preferably, the air outlet end of the fan is connected to the communication pipe through an air supply pipe, and an air filter is installed on the air supply pipe.

[0009] Preferably, the first air discharge part includes a first three-way valve. Two of the connecting ends of the first three-way valve are installed on the main water outlet pipe, and the other connecting end of the first three-way valve is installed with a first air outlet pipe.

[0010] Preferably, the second air discharge part includes a fourth three-way valve. Two of the connecting ends of the fourth three-way valve are installed on the auxiliary water outlet pipe, and the other connecting end of the fourth three-way valve is installed with a second air outlet pipe.

[0011] Preferably, a first moisture sensor is installed on the first air outlet pipe, and a second moisture sensor is installed on the second air outlet pipe.

[0012] Advantages of the present utility model: A waterway purging device for a hydrogen fuel cell system provided by the present utility model. The air supply part supplies air to the main water inlet pipe and the auxiliary water inlet pipe. The air entering the main water inlet pipe sequentially passes through the main water inlet, the main water outlet, and the main water outlet pipe, and is discharged through the first air discharge part. The air entering the auxiliary water inlet pipe sequentially passes through the auxiliary water inlet, the auxiliary water outlet, and the auxiliary water outlet pipe, and is discharged through the second air discharge part. Thus, the moisture in the main heat dissipation system of the fuel cell engine can be quickly dried, facilitating the rapid switching between ionized water and antifreeze, and not affecting the recovery purity of the antifreeze. By setting a moisture sensor at the air outlet, it is more convenient and fast to measure the moisture in the heat dissipation system pipeline, and automated management can be carried out. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 It is a circuit diagram of the FX2N-32MR controller in an embodiment of the present utility model;

[0016] Figure 3 It is a circuit diagram of the FX2N-4AD module in an embodiment of the present utility model.

[0017] In the figure: 1. Fuel cell system; 2. Main water inlet pipe; 3. Main water outlet pipe; 4. Auxiliary water inlet pipe; 5. Auxiliary water outlet pipe; 6. Air supply unit; 61. Three-way valve II; 62. Three-way valve III; 63. Connecting pipe; 64. Fan; 65. Air filter; 7. Air discharge unit I; 71. Three-way valve I; 72. Outlet pipe I; 73. Moisture sensor I; 8. Air discharge unit II; 81. Three-way valve IV; 82. Outlet pipe II; 83. Moisture sensor II; 9. FX2N-32MR controller; 10. FX2N-4AD module. Specific embodiments

[0018] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the present utility model in detail with reference to specific embodiments and the accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0020] As Figure 1 , Figure 2 , Figure 3 shown, a waterway purging device for a hydrogen fuel cell system includes a fuel cell system 1, and a main waterway and an auxiliary waterway are arranged on the cooling water path inside the fuel cell system 1. The main waterway includes a main water inlet and a main water outlet arranged on the cooling water path. A main water inlet pipe 2 and a main water outlet pipe 3 are respectively connected to the main water inlet and the main water outlet. The auxiliary waterway includes an auxiliary water inlet and an auxiliary water outlet arranged on the cooling water path. An auxiliary water inlet pipe 4 and an auxiliary water outlet pipe 5 are respectively connected to the auxiliary water inlet and the auxiliary water outlet. The main water inlet pipe 2 and the auxiliary water inlet pipe 4 are adjacent and are located between the main water outlet pipe 3 and the auxiliary water outlet pipe 5;

[0021] An air supply section 6 is provided between the main water inlet pipe 2 and the auxiliary water inlet pipe 4, and an air discharge section one 7 and an air discharge section two 8 are respectively provided on the main water outlet pipe 3 and the auxiliary water outlet pipe 5. The air supply section 6 supplies air to the main water inlet pipe 2 and the auxiliary water inlet pipe 4, and the air entering the main water inlet pipe 2 sequentially passes through the main water inlet, the main water outlet and the main water outlet pipe 3, and is discharged through the air discharge section one 7. The air entering the auxiliary water inlet pipe 4 sequentially passes through the auxiliary water inlet, the auxiliary water outlet and the auxiliary water outlet pipe 5, and is discharged through the air discharge section two 8.

[0022] Through the settings of the air supply section 6, the air discharge section one 7 and the air discharge section two 8, the moisture in the main heat dissipation system of the fuel cell engine can be quickly dried, facilitating the rapid switching between ionic water and antifreeze, and not affecting the recovery purity of the antifreeze. By setting a moisture sensor at the air outlet, it is more convenient and fast to measure the moisture in the heat dissipation system pipeline, and automated management can be carried out.

[0023] In a preferred embodiment of the present utility model, the air supply section 6 includes a three-way valve two 61 and a three-way valve three 62. Two of the connecting ends on the three-way valve two 61 are installed on the main water inlet pipe 2, and two of the connecting ends on the three-way valve three 62 are installed on the auxiliary water inlet pipe 4. A connecting pipe 63 is installed between the three-way valve two 61 and the three-way valve three 62, and a blower 64 is connected to the connecting pipe 63.

[0024] When it is necessary to clean the moisture in the heat dissipation system, start the blower 64, and control the three-way valve two 61 and the three-way valve three 62 so that the connecting pipe 63 is connected to the main water inlet pipe 2 and the auxiliary water inlet pipe 4, facilitating the air blown by the blower 64 to enter the main water inlet pipe 2 and the auxiliary water inlet pipe 4 through the connecting pipe 63. Subsequently, the air enters the main water outlet pipe 3 through the main water inlet and the main water outlet, and is discharged from the air discharge section one 7. At the same time, the air will also enter the auxiliary water outlet pipe 5 through the auxiliary water inlet and the auxiliary water outlet, and is discharged from the air discharge section two 8. Thus, the air can well clean the moisture in the pipeline of the heat dissipation system.

[0025] In another preferred embodiment of the present utility model, the air outlet end of the blower 64 is connected to the connecting pipe 63 through an air delivery pipe, and an air filter 65 is installed on the air delivery pipe. Through the setting of the air filter 65, the air blown out from the blower 64 can be filtered.

[0026] In still another preferred embodiment of the present utility model, the air discharge section one 7 includes a three-way valve one 71. Two of the connecting ends on the three-way valve one 71 are installed on the main water outlet pipe 3, and the other connecting end on the three-way valve one 71 is installed with an air outlet pipe one 72.

[0027] It should be noted that the air discharge part II 8 includes a three-way valve IV 81. Two of the connecting ends on the three-way valve IV 81 are installed on the auxiliary outlet water pipe 5, and the other connecting end on the three-way valve IV 81 is installed with an air outlet pipe II 82.

[0028] It should be noted that a moisture sensor I 73 is installed on the air outlet pipe I 72, and a moisture sensor II 83 is installed on the air outlet pipe II 82.

[0029] It also includes an FX2N-32MR controller 9 and an FX2N-4AD module 10. Both the FX2N-32MR controller 9 and the FX2N-4AD module 10 are manufactured by Mitsubishi Corporation. Mitsubishi FX2N-4AD is an analog input module launched by Mitsubishi Electric Corporation and is part of the FX2N series PLC. The pin Y0 on the FX2N-32MR controller 9 is electrically connected to the three-way valve I 71, the pin Y1 is electrically connected to the three-way valve II 61, the pin Y2 is electrically connected to the three-way valve III 62, the pin Y3 is electrically connected to the three-way valve IV 81, and the pin Y4 is electrically connected to the fan 64. The FX2N-32MR controller 9 communicates with an external touch screen through a 485 communication interface. The FX2N-32MR controller 9 can control the start and stop of the three-way valve and the fan 64. The CH1 pin on the FX2N-4AD module 10 is electrically connected to the moisture sensor I 73, and the CH2 pin on the FX2N-4AD module 10 is electrically connected to the moisture sensor II 83.

[0030] Overall blowing and cleaning description: The battery system waterway purging and control method uses the FX2N-32MR controller 9 to control the three-way valve and the fan 64, and the FX2N-4AD module 10 to collect data from the moisture sensors, achieving the function of real-time monitoring of data. The purpose of purging the cooling system is to dry the moisture in the pipes inside the cooling system. There is no need to control the rotation speed of the fan. When the normal fuel cell engine system is tested, the three-way valve I 71, the three-way valve II 61, the three-way valve III 62, and the three-way valve IV 81 are all in the initial state. In the initial state, the water inlet and outlet are connected, and the air inlet and outlet are in the closed state. After the system test is completed, the water inside the cooling system is drained, and the three-way valve is started to purge the cooling system.

[0031] Main pipeline purging description: After the cooling system water is drained completely, the FX2N-32MR controller 9 is controlled through the touch screen to start the three-way valve I 71 and the three-way valve II 61, and start the fan 64 for purging. When the fan 64 starts, the air passes through the air filter 65 - the three-way valve II 61 - the main water inlet - the main water outlet - the three-way valve I 71 - the moisture sensor I 73 and is discharged. During operation, the three-way valve starts to disconnect the water inlet and outlet and connect the air inlet and outlet to start air purging. The air passes through the moisture sensor I 73 to detect the moisture in the air in real time. After the measured value of the moisture sensor is lower than the set value, the fan and the corresponding three-way valve are closed.

[0032] Description of auxiliary pipeline purging: After the water in the heat dissipation system is drained, the three-way valve three 62 and the three-way valve four 81 are started by controlling the FX2N-32MR controller 9 through the touch screen, and the fan 64 is started for purging. The air started by the fan 64 passes through the air filter 65 - the three-way valve three 62 - the auxiliary water inlet - the auxiliary water outlet - the three-way valve four 81 - the water sensor two 83 and is discharged. During operation, the water inlet and outlet of the three-way valve are disconnected, and the air inlet and outlet are connected to start air purging. The air passes through the water sensor two 83 to detect the moisture in the air in real time. After the measured value of the water sensor is lower than the set value, the fan 64 and the corresponding three-way valve are closed.

[0033] Those of ordinary skill in the art should understand that: The discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; Under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0034] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydrogen fuel cell system water path purging device, comprising a fuel cell system (1), wherein a main water path and an auxiliary water path are arranged on a heat dissipation water path inside the fuel cell system (1), wherein the main water path comprises a main water inlet and a main water outlet arranged on the heat dissipation water path, wherein the main water inlet and the main water outlet are respectively connected to a main water inlet pipe (2) and a main water outlet pipe (3), and the auxiliary water path comprises an auxiliary water inlet and an auxiliary water outlet arranged on the heat dissipation water path, wherein the auxiliary water inlet and the auxiliary water outlet are respectively connected to an auxiliary water inlet pipe (4) and an auxiliary water outlet pipe (5), wherein: The main water inlet pipe (2) and the auxiliary water inlet pipe (4) are adjacent to each other and are located between the main water outlet pipe (3) and the auxiliary water outlet pipe (5); An air supply part (6) is arranged between the main water inlet pipe (2) and the auxiliary water inlet pipe (4), and an air exhaust part 1 (7) and an air exhaust part 2 (8) are arranged on the main water outlet pipe (3) and the auxiliary water outlet pipe (5), respectively. The air supply part (6) supplies air to the main water inlet pipe (2) and the auxiliary water inlet pipe (4), and the air entering the main water inlet pipe (2) passes through the main water inlet, the main water outlet and the main water outlet pipe (3) in sequence, and is discharged through the air exhaust part 1 (7), while the air entering the auxiliary water inlet pipe (4) passes through the auxiliary water inlet, the auxiliary water outlet and the auxiliary water outlet pipe (5) in sequence, and is discharged through the air exhaust part 2 (8).

2. A hydrogen fuel cell system water channel purge device according to claim 1, characterized in that: The air supply unit (6) comprises a three-way valve 2 (61) and a three-way valve 3 (62), two connecting ends of the three-way valve 2 (61) are mounted on the main water inlet pipe (2), two connecting ends of the three-way valve 3 (62) are mounted on the auxiliary water inlet pipe (4), and a connecting pipe (63) is installed between the three-way valve 2 (61) and the three-way valve 3 (62), and a fan (64) is connected to the connecting pipe (63).

3. A hydrogen fuel cell system water channel purge device according to claim 2, characterized in that: The air outlet end of the fan (64) is connected to the connecting pipe (63) via an air supply pipe, and an air filter (65) is installed on the air supply pipe.

4. A hydrogen fuel cell system water channel purge device according to claim 1, characterized in that: The air discharge part (7) comprises a three-way valve (71), two connection ends of which are mounted on the main water outlet pipe (3), and the other connection end of which is mounted on an air outlet pipe (72).

5. A hydrogen fuel cell system water channel purge device according to claim 4, characterized in that: The air discharge part 2 (8) comprises a three-way valve 4 (81), two connection ends of which are mounted on the auxiliary water outlet pipe (5), and the other connection end of which is mounted on the three-way valve 4 (81) is provided with an air outlet pipe 2 (82).

6. A hydrogen fuel cell system water channel purge device according to claim 5, characterized in that: The first air outlet pipe (72) is provided with a moisture sensor (73), and the second air outlet pipe (82) is provided with a moisture sensor (83).

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