Compressor filler leakage gas recovery device

Abstract

The utility model discloses a compressor filler leakage gas recovery device which comprises a fixed base, a recovery tank is installed on the fixed base, and a nitrogen and hydrogen drying machine is installed on the fixed base. A nitrogen and hydrogen mixed gas supercharger is installed on the fixed base, a recycling gas inlet pipe is communicated between an inlet of the nitrogen and hydrogen mixed gas supercharger and the recycling tank, a gas supply pipe is communicated between an outlet of the nitrogen and hydrogen mixed gas supercharger and the nitrogen and hydrogen drying machine, and a cold box is installed on the fixed base. A BOG compressor is installed on the fixed base, a first pipeline is communicated between an inlet of the BOG compressor and the nitrogen and hydrogen drying machine, and a second pipeline is communicated between an outlet of the BOG compressor and the cold box. The utility model has the beneficial effects that the gas leakage of the filler can be recycled, the influence of on-site emptying on the environment is eliminated, the energy waste is avoided, the cost is saved, the gas emission is reduced, and the potential safety hazard is reduced.

Description

Technical Field

[0001] This utility model relates to the field of leakage recovery technology, specifically a compressor packing leakage recovery device. Background Technology

[0002] Currently, the packing leakage recovery for BOG compressors and recirculating gas compressors is handled by high-point venting on-site, while the packing leakage recovery for hydrogen-rich compressors is handled by flare venting. Firstly, on-site venting does not meet environmental protection requirements. Secondly, over 65% of the leaked gas is nitrogen, with the remaining 30% being process gas, and each unit's flow rate exceeds 6 Nm³ / h per hour. Such a large amount of gas is not only wasted but also poses certain safety hazards and can easily impact the environment.

[0003] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a compressor packing leakage recovery device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A compressor packing leakage recovery device includes a fixed base, a recovery tank mounted on the fixed base, a nitrogen-hydrogen dryer mounted on the fixed base, a nitrogen-hydrogen mixed gas booster mounted on the fixed base, the nitrogen-hydrogen mixed gas booster located between the recovery tank and the nitrogen-hydrogen dryer, a recovery inlet pipe connecting the inlet of the nitrogen-hydrogen mixed gas booster to the recovery tank, a gas supply pipe connecting the outlet of the nitrogen-hydrogen mixed gas booster to the nitrogen-hydrogen dryer, a cold box mounted on the fixed base, a BOG compressor mounted on the fixed base, the BOG compressor located between the cold box and the nitrogen-hydrogen dryer, a first pipe connecting the inlet of the BOG compressor to the nitrogen-hydrogen dryer, and a second pipe connecting the outlet of the BOG compressor to the cold box.

[0007] Furthermore, a first packing leakage inlet pipe is connected to one side of the recovery tank, and a second packing leakage inlet pipe is connected to the top of the recovery tank. The second packing leakage inlet pipe is located below the first packing leakage inlet pipe, and a vacuum pump is installed on the second packing leakage inlet pipe.

[0008] Furthermore, a fixed support frame is installed on one side of the recovery tank, the air pump is installed on the fixed support frame, and a pipe support frame is installed on the fixed support frame. The pipe support frame is connected to the first packing leakage inlet pipe and the second packing leakage inlet pipe, respectively.

[0009] Furthermore, the air intake pipe, air supply pipe, first pipe, and second pipe are all made of flexible hoses.

[0010] Furthermore, both the first and second packing leakage inlet pipes are steel pipes, and both are equipped with one-way valves.

[0011] Compared with existing technologies, this technical solution has the following beneficial effects:

[0012] The leaking gas from the compressor packing is collected by a recovery tank, and then pressurized and dried by a nitrogen-hydrogen mixed gas booster and a nitrogen-hydrogen dryer. Once the dew point temperature is below -65°C, the gas enters a cold box, where nitrogen, hydrogen, and methane are separated. This allows for the recycling of the leaking gas from the packing, eliminating the environmental impact of on-site venting, avoiding energy waste, saving costs, reducing gas emissions, and lowering safety hazards.

[0013] The gas is collected into the recovery tank through the first packing leak inlet pipe. When the gas volume is large, the gas can be quickly collected into the recovery tank through the air pump and the second packing leak inlet pipe, which reduces gas leakage, avoids energy waste, and is beneficial to environmental protection.

[0014] The air pump and pipe support frame are supported by a fixed support frame, which in turn supports the first and second packing leak inlet pipes, preventing them from bending and deforming and improving their service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a compressor packing leakage recovery device according to the present invention.

[0016] Figure 2 This is an enlarged schematic diagram of the recycling tank.

[0017] In the diagram: 1. Fixed base; 2. Recovery tank; 3. Nitrogen-hydrogen dryer; 4. Nitrogen-hydrogen mixed gas booster; 5. Recovery inlet pipe; 6. Gas supply pipe; 7. Cold box; 8. BOG compressor; 9. First pipeline; 10. Second pipeline; 11. First packing leakage inlet pipe; 12. Second packing leakage inlet pipe; 13. Vacuum pump; 14. Fixed support frame; 15. Pipe support frame; 16. One-way valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] This utility model provides, for example Figure 1-2 The compressor packing leakage recovery device shown includes a fixed base 1, a recovery tank 2 installed on the fixed base 1, a nitrogen-hydrogen dryer 3 installed on the fixed base 1, a nitrogen-hydrogen mixed gas booster 4 installed on the fixed base 1, the nitrogen-hydrogen mixed gas booster 4 being located between the recovery tank 2 and the nitrogen-hydrogen dryer 3, a recovery inlet pipe 5 connecting the inlet of the nitrogen-hydrogen mixed gas booster 4 to the recovery tank 2, a gas supply pipe 6 connecting the outlet of the nitrogen-hydrogen mixed gas booster 4 to the nitrogen-hydrogen dryer 3, a cold box 7 installed on the fixed base 1, a BOG compressor 8 installed on the fixed base 1, the BOG compressor 8 being located between the cold box 7 and the nitrogen-hydrogen dryer 3, a first pipe 9 connecting the inlet of the BOG compressor 8 to the nitrogen-hydrogen dryer 3, and a second pipe 10 connecting the outlet of the BOG compressor 8 to the cold box 7.

[0021] The leaking gas from the compressor packing is collected in the recovery tank 2. The nitrogen-hydrogen mixed gas booster 4 starts working, extracting the gas from the recovery tank 2 through the recovery inlet pipe 5, and then transporting it to the nitrogen-hydrogen dryer 3 through the gas supply pipe 6. The leaking gas is pressurized and dried by the nitrogen-hydrogen mixed gas booster 4 and the nitrogen-hydrogen dryer 3. After the dew point temperature is below -65℃, the BOG compressor 8 starts working, extracting the gas from the nitrogen-hydrogen dryer 3 through the first pipe 9, and then transporting it to the cold box 7 through the second pipe 10. The cold box separates nitrogen, hydrogen, and methane, which can recover and reuse the leaking gas from the packing, eliminate the environmental impact of on-site venting, avoid energy waste, save costs, reduce gas emissions, and reduce safety hazards.

[0022] Refer to the instruction manual appendix Figure 2 The recovery tank 2 is connected to a first packing leakage inlet pipe 11 on one side, and a second packing leakage inlet pipe 12 is connected to the recovery tank 2. The second packing leakage inlet pipe 12 is located below the first packing leakage inlet pipe 11, and a vacuum pump 13 is installed on the second packing leakage inlet pipe 12.

[0023] When the compressor packing leaks gas, the gas is collected into the recovery tank 2 through the first packing leak inlet pipe 11. When the gas volume is large, the vacuum pump 13 starts to work and can quickly collect the gas into the recovery tank 2 through the second packing leak inlet pipe 12, which reduces gas leakage, avoids energy waste, and is beneficial to environmental protection.

[0024] Refer to the instruction manual appendix Figure 2 A fixed support frame 14 is installed on one side of the recovery tank 2. The air pump 13 is installed on the fixed support frame 14. A pipe support frame 15 is installed on the fixed support frame 14. The pipe support frame 15 is connected to the first packing leakage inlet pipe 11 and the second packing leakage inlet pipe 12 respectively.

[0025] The air pump 13 and the pipe support frame 15 are supported by the fixed support frame 14. The first packing leakage inlet pipe 11 and the second packing leakage inlet pipe 12 are supported by the pipe support frame 15, which prevents the first packing leakage inlet pipe 11 and the second packing leakage inlet pipe 12 from bending and deformation, and improves their service life.

[0026] Refer to the instruction manual appendix Figure 2 Both the first packing leakage inlet pipe 11 and the second packing leakage inlet pipe 12 are steel pipes, and both the first packing leakage inlet pipe 11 and the second packing leakage inlet pipe 12 are equipped with a one-way valve 16.

[0027] Gas can only flow into the recovery tank 2 through the one-way valve 16, preventing gas backflow.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compressor packing leakage recovery device, comprising a fixed base (1), wherein a recovery tank (2) is installed on the fixed base (1), characterized in that, A nitrogen-hydrogen dryer (3) is installed on the fixed base (1). A nitrogen-hydrogen mixed gas booster (4) is installed on the fixed base (1). The nitrogen-hydrogen mixed gas booster (4) is located between the recovery tank (2) and the nitrogen-hydrogen dryer (3). A recovery inlet pipe (5) is connected between the inlet of the nitrogen-hydrogen mixed gas booster (4) and the recovery tank (2). A gas supply pipe (6) is connected between the outlet of the nitrogen-hydrogen mixed gas booster (4) and the nitrogen-hydrogen dryer (3). A cold box (7) is installed on the fixed base (1). A BOG compressor (8) is installed on the fixed base (1). The BOG compressor (8) is located between the cold box (7) and the nitrogen-hydrogen dryer (3). A first pipe (9) is connected between the inlet of the BOG compressor (8) and the nitrogen-hydrogen dryer (3). A second pipe (10) is connected between the outlet of the BOG compressor (8) and the cold box (7).

2. The compressor packing leakage recovery device according to claim 1, characterized in that, The recovery tank (2) is connected to a first packing leakage inlet pipe (11) on one side, and a second packing leakage inlet pipe (12) is connected to the upper part of the recovery tank (2). The second packing leakage inlet pipe (12) is located below the first packing leakage inlet pipe (11), and a vacuum pump (13) is provided on the second packing leakage inlet pipe (12).

3. A compressor packing leakage recovery device according to claim 2, characterized in that, A fixed support frame (14) is installed on one side of the recycling tank (2). The air pump (13) is installed on the fixed support frame (14). A pipe support frame (15) is installed on the fixed support frame (14). The pipe support frame (15) is connected to the first packing leakage inlet pipe (11) and the second packing leakage inlet pipe (12) respectively.

4. A compressor packing leakage recovery device according to claim 1, characterized in that, The recovery air inlet pipe (5), air supply pipe (6), first pipe (9) and second pipe (10) are all made of flexible hoses.

5. A compressor packing leakage recovery device according to claim 2, characterized in that, Both the first packing leakage inlet pipe (11) and the second packing leakage inlet pipe (12) are steel pipes, and both the first packing leakage inlet pipe (11) and the second packing leakage inlet pipe (12) are equipped with a one-way valve (16).

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