Hydrogen compressor protection system

Abstract

The utility model discloses a hydrogen compressor protection system which comprises a first stop valve, and the two ends of the first stop valve are communicated with a first pipe body used for filling nitrogen and a second pipe body used for filling hydrogen respectively. One end of the first pipe body communicates with a third pipe body used for communicating with one side of the pressure filler and a fourth pipe body used for communicating with one side of the middle filler, one end of the second pipe body communicates with the pressure filler, and the communicating position of the second pipe body and the pressure filler is located at the end, close to the air cylinder, of the pressure filler. The communicating position of the third pipe body and the pressure filler is located at the end, away from the air cylinder, of the pressure filler. The device can reduce the use amount of electrolytic hydrogen and prevent nitrogen from polluting process gas in the hydrogen compressor.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen compressor protection, and particularly relates to a hydrogen compressor protection system. Background Art

[0002] At present, during the operation of a hydrogen compressor, electrolytic hydrogen or nitrogen is often used as a protective gas. However, when using electrolytic hydrogen as the protective gas, a large amount of electrolytic hydrogen is vented, which causes energy waste and increases the load on the waste gas treatment workshop; and when using nitrogen as the protective gas, nitrogen will contaminate the process gas in the hydrogen compressor. Summary of the Utility Model

[0003] The utility model provides a hydrogen compressor protection system to overcome the defects of the prior art, which can reduce the consumption of electrolytic hydrogen and avoid nitrogen from contaminating the process gas in the hydrogen compressor.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A hydrogen compressor protection system is arranged on a hydrogen compressor. The hydrogen compressor includes a body, a cylinder, a pressure packing, and an intermediate packing; the hydrogen compressor protection system includes a first stop valve. The two ends of the first stop valve are respectively connected to a first pipe for filling nitrogen and a second pipe for filling hydrogen. One end of the first pipe is connected to a third pipe for connecting to one side of the pressure packing and a fourth pipe for connecting to one side of the intermediate packing. One end of the second pipe is connected to the pressure packing, and the connection between the second pipe and the pressure packing is located at one end of the pressure packing close to the cylinder. The connection between the third pipe and the pressure packing is located at one end of the pressure packing far from the cylinder;

[0006] The hydrogen compressor protection system further includes a fifth pipe and a sixth pipe. One ends of the fifth pipe and the sixth pipe are both connected to the other side of the pressure packing, and the other ends of the fifth pipe and the sixth pipe are both connected to a liquid collecting tank. The connection between the fifth pipe and the pressure packing is located at one end of the third pipe close to the second pipe, and the connection between the sixth pipe and the pressure packing is located at one end of the third pipe far from the second pipe;

[0007] The hydrogen compressor protection system further includes a seventh pipe for connecting to the cylinder side compartment and an eighth pipe for connecting to the body side compartment.

[0008] The beneficial effects of adopting the above technical solution are as follows: When the hydrogen compressor compresses hydrogen, the electrolytic hydrogen can be input into the pressure packing through the second pipe body, and nitrogen can be input into the pressure packing through the first pipe body and the third pipe body in sequence, so that nitrogen and electrolytic hydrogen are used as protective gases together, thereby reducing the consumption of electrolytic hydrogen, further reducing energy consumption. At the same time, the electrolytic hydrogen can play a certain isolation role between the process gas and nitrogen to avoid nitrogen from contaminating the process gas in the hydrogen compressor; after the hydrogen compressor inhales and opens the first stop valve, the electrolytic hydrogen can enter the pressure packing through the second pipe body or the third pipe body to ensure that the gas passing through the pressure packing is hydrogen, thereby avoiding nitrogen from being sucked into the cylinder and further avoiding nitrogen from contaminating the process gas in the hydrogen compressor.

[0009] In one embodiment, a first pressure reducing valve and a second pressure reducing valve are respectively arranged at one ends of the second pipe body and the third pipe body close to the pressure packing, and a third pressure reducing valve is arranged at one end of the fourth pipe body close to the intermediate packing.

[0010] The beneficial effects of adopting the above technical solution are as follows: Such a setting is convenient for reducing the pressure of high-pressure gas to meet the process requirements.

[0011] In one embodiment, a first check valve and a second check valve are respectively arranged at one ends of the second pipe body and the third pipe body close to the pressure packing, and a third check valve is arranged at one end of the fourth pipe body close to the intermediate packing.

[0012] In one embodiment, a second stop valve and a third stop valve are respectively arranged at one ends of the fifth pipe body and the sixth pipe body close to the pressure packing.

[0013] In one embodiment, an exhaust port for connecting to the waste gas and waste liquid treatment device and a drain port for connecting to the atmospheric pressure storage tank for sewage are respectively arranged at the upper end and the lower end of the liquid collection tank.

[0014] The beneficial effects of adopting the above technical solution are as follows: Such a setting is convenient for discharging the waste gas into the waste gas and waste liquid treatment device through the exhaust port at the upper end, and also convenient for discharging the waste liquid from the drain port at the lower end into the atmospheric pressure storage tank for sewage.

[0015] In one embodiment, one end of the seventh pipe body far from the cylinder side compartment is connected to the waste gas and waste liquid treatment device, and a fourth stop valve is arranged on the seventh pipe body.

[0016] The beneficial effects of adopting the above technical solution are as follows: Such a setting is convenient for controlling the discharge of the waste gas in the cylinder side compartment.

[0017] In one embodiment, a fourth check valve is arranged on the seventh pipe body.

[0018] In one embodiment, the eighth pipe body is located at the upper end of the fuselage side compartment.

[0019] The beneficial effects of adopting the above technical solution are as follows: By setting it in this way, it is convenient to vent the waste gas at a high point.

[0020] In one embodiment, a ninth pipe body and a tenth pipe body are provided at the lower end of the hydrogen compressor. The upper ends of the ninth pipe body and the tenth pipe body are respectively communicated with the cylinder side compartment and the fuselage side compartment. The lower ends of the ninth pipe body and the tenth pipe body are both connected to an atmospheric storage and sewage tank. A first ball valve and a second ball valve are respectively provided on the ninth pipe body and the tenth pipe body.

[0021] The beneficial effects of adopting the above technical solution are as follows: By setting it in this way, it is convenient to control the waste liquid in the cylinder side compartment and the fuselage side compartment to be discharged into the atmospheric storage and sewage tank.

[0022] In one embodiment, a first pressure gauge and a second pressure gauge are respectively provided at the ends of the first pipe body and the second pipe body far away from the hydrogen compressor.

[0023] The beneficial effects of adopting the above technical solution are as follows: By setting it in this way, it is convenient to monitor the supply pressures of nitrogen and electrolytic hydrogen.

[0024] The beneficial effects of the present utility model are as follows:

[0025] When the hydrogen compressor compresses hydrogen, electrolytic hydrogen can be input into the pressure packing through the second pipe body, and nitrogen can be input into the pressure packing through the first pipe body and the third pipe body in sequence, so that nitrogen and electrolytic hydrogen jointly serve as protective gases, thereby reducing the consumption of electrolytic hydrogen, further reducing energy consumption. At the same time, electrolytic hydrogen can play a certain isolation role between the process gas and nitrogen to avoid nitrogen polluting the process gas in the hydrogen compressor; after the hydrogen compressor inhales and opens the first stop valve, electrolytic hydrogen can enter the pressure packing through the second pipe body or the third pipe body to ensure that the gas passing through the pressure packing is all hydrogen, thereby avoiding nitrogen being inhaled into the cylinder and further avoiding nitrogen polluting the process gas in the hydrogen compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Hereinafter, the present utility model will be described in more detail based on embodiments and with reference to the drawings.

[0027] Wherein:

[0028] Figure 1 Shows a schematic structural diagram of an embodiment of the present utility model;

[0029] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0030] Reference numerals:

[0031] 1 - First pipe body, 2 - Second pipe body, 3 - First stop valve, 4 - Third pipe body, 5 - Eighth pipe body, 6 - Fourth pipe body, 7 - Seventh pipe body, 8 - Third pressure reducing valve, 9 - Second pressure reducing valve, 10 - First pressure reducing valve, 11 - Cylinder, 12 - Pressure packing, 13 - Intermediate packing, 14 - Ninth pipe body, 15 - Tenth pipe body, 16 - Fifth pipe body, 17 - Sixth pipe body, 18 - Liquid collection tank, 19 - Second pressure gauge, 20 - First pressure gauge. Detailed implementation mode

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] The present invention provides a hydrogen compressor protection system, as Figure 1 shown, arranged on a hydrogen compressor. The hydrogen compressor includes a fuselage, a cylinder 11, a pressure packing 12 and an intermediate packing 13; the hydrogen compressor protection system includes a first stop valve 3. The two ends of the first stop valve 3 are respectively communicated with a first pipe body 1 for filling nitrogen and a second pipe body 2 for filling hydrogen. One end of the first pipe body 1 is communicated with a third pipe body 4 for communicating with one side of the pressure packing 12 and a fourth pipe body 6 for communicating with one side of the intermediate packing 13. One end of the second pipe body 2 is communicated with the pressure packing 12. The connection part of the second pipe body 2 and the pressure packing 12 is located at one end of the pressure packing 12 close to the cylinder 11. The connection part of the third pipe body 4 and the pressure packing 12 is located at one end of the pressure packing 12 far from the cylinder 11;

[0034] The hydrogen compressor protection system further includes a fifth pipe body 16 and a sixth pipe body 17. One ends of the fifth pipe body 16 and the sixth pipe body 17 are both communicated with the other side of the pressure packing 12. The other ends of the fifth pipe body 16 and the sixth pipe body 17 are both communicated with the liquid collection tank 18. The connection part of the fifth pipe body 16 and the pressure packing 12 is located at one end of the third pipe body 4 close to the second pipe body 2. The connection part of the sixth pipe body 17 and the pressure packing 12 is located at one end of the third pipe body 4 far from the second pipe body 2;

[0035] The hydrogen compressor protection system further includes a seventh pipe body 7 for communicating with the side compartment of the cylinder 11 and an eighth pipe body 5 for communicating with the side compartment of the fuselage.

[0036] It can be understood that when the hydrogen compressor compresses hydrogen, the electrolytic hydrogen can be input into the pressure packing 12 through the second pipe body 2, and nitrogen can be input into the pressure packing 12 through the first pipe body 1 and the third pipe body 4 in sequence, so that nitrogen and electrolytic hydrogen can be used as protective gases together, thereby reducing the consumption of electrolytic hydrogen, and further reducing energy consumption. At the same time, the electrolytic hydrogen can play a certain isolation role between the process gas and nitrogen to avoid nitrogen from contaminating the process gas in the hydrogen compressor; after the hydrogen compressor sucks in air and opens the first stop valve 3, the electrolytic hydrogen can enter the pressure packing 12 through the second pipe body 2 or the third pipe body 4 to ensure that the gas passing through the pressure packing 12 is hydrogen, thereby avoiding nitrogen from being sucked into the cylinder 11 and further avoiding nitrogen from contaminating the process gas in the hydrogen compressor.

[0037] It should be noted that the hydrogen compressor is a very common device on the market, and its specific structure will not be described in detail here; the production cost of electrolytic hydrogen is much higher than that of nitrogen.

[0038] It should also be noted that the hydrogen compressor can be a double-acting compressor, and the same connection method can be adopted on both sides of the hydrogen compressor.

[0039] In one embodiment, a first pressure reducing valve 10 and a second pressure reducing valve 9 are respectively arranged at one ends of the second pipe body 2 and the third pipe body 4 close to the pressure packing 12, and a third pressure reducing valve 8 is arranged at one end of the fourth pipe body 6 close to the intermediate packing 13 to facilitate decompression of high-pressure gas to meet the process requirements.

[0040] In one embodiment, a first check valve and a second check valve are respectively arranged at one ends of the second pipe body 2 and the third pipe body 4 close to the pressure packing 12, and a third check valve is arranged at one end of the fourth pipe body 6 close to the intermediate packing 13.

[0041] In one embodiment, a second stop valve and a third stop valve are respectively arranged at one ends of the fifth pipe body 16 and the sixth pipe body 17 close to the pressure packing 12.

[0042] In one embodiment, an exhaust port for connecting to the waste gas and liquid treatment device and a drain port for connecting to the atmospheric storage tank for sewage are respectively arranged at the upper and lower ends of the liquid collecting tank 18 to facilitate discharging the waste gas into the waste gas and liquid treatment device through the upper exhaust port and discharging the waste liquid into the atmospheric storage tank for sewage through the lower drain port.

[0043] It should be noted that a visible liquid level gauge is arranged on the liquid collecting tank 18.

[0044] In one embodiment, one end of the seventh pipe body 7 far from the side compartment of the cylinder 11 is connected to the waste gas and liquid treatment device, and a fourth stop valve is arranged on the seventh pipe body 7 to facilitate controlling the discharge of the waste gas in the side compartment of the cylinder 11.

[0045] In one embodiment, a fourth check valve is provided on the seventh pipe body 7.

[0046] In one embodiment, the eighth pipe body 5 is located at the upper end of the body side compartment to facilitate the high-point venting of waste gas.

[0047] In one embodiment, a ninth pipe body 14 and a tenth pipe body 15 are provided at the lower end of the hydrogen compressor. The upper ends of the ninth pipe body 14 and the tenth pipe body 15 are respectively communicated with the side compartment of the cylinder 11 and the body side compartment. The lower ends of the ninth pipe body 14 and the tenth pipe body 15 are both connected to the atmospheric pressure storage and sewage tank. A first ball valve and a second ball valve are respectively provided on the ninth pipe body 14 and the tenth pipe body 15 to facilitate the controlled discharge of the waste liquid in the side compartment of the cylinder 11 and the body side compartment into the atmospheric pressure storage and sewage tank.

[0048] In one embodiment, a first pressure gauge 20 and a second pressure gauge 19 are respectively provided at the ends of the first pipe body 1 and the second pipe body 2 far from the hydrogen compressor to facilitate the monitoring of the supply pressures of nitrogen and electrolytic hydrogen.

[0049] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0050] Although the present utility model has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present utility model. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present utility model defined by the appended claims. It should be understood that different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A hydrogen compressor protection system, arranged on a hydrogen compressor, the hydrogen compressor comprising a body, a cylinder (11), a pressure packing (12) and an intermediate packing (13), characterized in that: The invention comprises a first stop valve (3), wherein two ends of the first stop valve (3) are respectively connected to a first tube body (1) for filling nitrogen and a second tube body (2) for filling hydrogen, one end of the first tube body (1) is connected to a third tube body (4) for connecting to one side of the pressure filler (12) and a fourth tube body (6) for connecting to one side of the intermediate filler (13), one end of the second tube body (2) is connected to the pressure filler (12), the connection point between the second tube body (2) and the pressure filler (12) is located at an end of the pressure filler (12) close to the cylinder (11), and the connection point between the third tube body (4) and the pressure filler (12) is located at an end of the pressure filler (12) far from the cylinder (11); It also comprises a fifth tube body (16) and a sixth tube body (17), one end of each of the fifth tube body (16) and the sixth tube body (17) being connected to the other side of the pressure filler (12), the other ends of each of the fifth tube body (16) and the sixth tube body (17) being connected to a liquid collecting tank (18), the connection point between the fifth tube body (16) and the pressure filler (12) being located at one end of the third tube body (4) close to the second tube body (2), and the connection point between the sixth tube body (17) and the pressure filler (12) being located at one end of the third tube body (4) far from the second tube body (2); It also includes a seventh tube body (7) for connecting to the cylinder (11) side compartment and an eighth tube body (5) for connecting to the fuselage side compartment.

2. A hydrogen compressor protection system according to claim 1, characterized in that: The second tube body (2) and the third tube body (4) are respectively provided with a first pressure reducing valve (10) and a second pressure reducing valve (9) at one end close to the pressure filler (12), and the fourth tube body (6) is provided with a third pressure reducing valve (8) at one end close to the intermediate filler (13).

3. A hydrogen compressor protection system according to claim 1 or 2, characterized in that: The second tube body (2) and the third tube body (4) are provided with a first check valve and a second check valve respectively at one end close to the pressure filler (12), and the fourth tube body (6) is provided with a third check valve at one end close to the intermediate filler (13).

4. A hydrogen compressor protection system according to claim 1, characterized in that: A second stop valve and a third stop valve are respectively provided at one end of the fifth tube body (16) and the sixth tube body (17) close to the pressure filler (12).

5. A hydrogen compressor protection system according to claim 1, characterized in that: The upper end and the lower end of the liquid collecting tank (18) are respectively provided with an exhaust port for connecting to a waste gas and waste liquid treatment device and a liquid discharge port for connecting to a normal pressure sewage storage tank.

6. A hydrogen compressor protection system according to claim 1, characterized in that: One end of the seventh pipe body (7) away from the cylinder (11) side compartment is connected to the waste gas and waste liquid treatment device, and a fourth stop valve is provided on the seventh pipe body (7).

7. A hydrogen compressor protection system according to claim 1 or 6, characterized in that: The seventh pipe body (7) is provided with a fourth check valve.

8. A hydrogen compressor protection system according to claim 1, characterized in that: The eighth tube body (5) is located at the upper end of the compartment on the fuselage side.

9. A hydrogen compressor protection system according to claim 1, characterized in that: A ninth tube body (14) and a tenth tube body (15) are provided at the lower end of the hydrogen compressor. The upper ends of the ninth tube body (14) and the tenth tube body (15) are connected to the cylinder (11) side compartment and the fuselage side compartment respectively. The lower ends of the ninth tube body (14) and the tenth tube body (15) are connected to a normal pressure sewage storage tank. The ninth tube body (14) and the tenth tube body (15) are provided with a first ball valve and a second ball valve respectively.

10. A hydrogen compressor protection system according to claim 1, characterized in that: A first pressure gauge (20) and a second pressure gauge (19) are respectively provided at one end of the first tube body (1) and the second tube body (2) away from the hydrogen compressor.

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