CN221197027U - Diesel oil recovery device of natural gas screw compressor - Google Patents
Diesel oil recovery device of natural gas screw compressor Download PDFInfo
- Publication number
- CN221197027U CN221197027U CN202323069311.7U CN202323069311U CN221197027U CN 221197027 U CN221197027 U CN 221197027U CN 202323069311 U CN202323069311 U CN 202323069311U CN 221197027 U CN221197027 U CN 221197027U
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- Prior art keywords
- pipe
- liquid
- liquid outlet
- valve
- natural gas
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 22
- 239000003345 natural gas Substances 0.000 title claims abstract description 19
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 123
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 23
- 238000010926 purge Methods 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to the technical field of residual oil recovery, in particular to a diesel oil recovery device of a natural gas screw compressor, which comprises a residual liquid collecting tank, wherein the top of the residual liquid collecting tank is provided with a liquid inlet and a vent, the bottom of the residual liquid collecting tank is provided with a liquid outlet, the liquid inlet is connected with a liquid inlet pipe, and the liquid inlet pipe is connected with a liquid discharge valve at the bottom of the natural gas screw compressor; the vent port is connected with the exhaust pipe, the nitrogen inlet pipe and the purging pipe through the vent main pipe, and the exhaust pipe is externally connected with a torch; the liquid outlet is provided with a liquid outlet pipe, the liquid outlet is connected with the oil tank through the liquid outlet pipe, the liquid outlet pipe is provided with a filter device, and a liquid outlet valve is arranged between the liquid outlet and the filter device; the ventilation main pipe is provided with a ventilation valve, the purging pipe is connected with the liquid outlet pipe through a fan, and the connection part is positioned between the liquid outlet valve and the filtering device; the purging pipe is provided with a purging valve, the exhaust pipe is provided with an exhaust valve, and the nitrogen inlet pipe is provided with a nitrogen valve. According to the utility model, the diesel oil is recovered and recycled by filling nitrogen into the tank and pressing liquid, and filtering the liquid through the filtering device.
Description
Technical Field
The utility model relates to the technical field of residual oil recovery, in particular to a diesel oil recovery device of a natural gas screw compressor.
Background
The diesel oil retained in the screw compressor needs to be discharged into a residual liquid collecting tank for collecting the diesel oil through a liquid discharge valve at the bottom of the unit before the unit is shut down and the unit is maintained each time, however, the diesel oil collected in the residual liquid collecting tank cannot be recycled in real time, when residual oil is more, the residual oil needs to be transferred, in the residual oil recycling and transferring process, the operation of workers is needed, the safety is poor, the efficiency is low, and the labor capacity is increased.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a natural gas screw compressor diesel oil recovery device, which realizes the recovery and recycling of diesel oil by filling nitrogen into a tank to press liquid, filtering the liquid by a filtering device and then recovering the liquid.
The utility model relates to a diesel oil recovery device of a natural gas screw compressor, which comprises a residual liquid collecting tank, wherein the top of the residual liquid collecting tank is provided with a liquid inlet and a vent, the bottom of the residual liquid collecting tank is provided with a liquid outlet, the liquid inlet is connected with a liquid inlet pipe, and the liquid inlet pipe is connected with a liquid discharge valve at the bottom of the natural gas screw compressor; the vent port is connected with the exhaust pipe, the nitrogen inlet pipe and the purging pipe through the vent main pipe, and the exhaust pipe is externally connected with a torch; the liquid outlet is provided with a liquid outlet pipe, the liquid outlet is connected with the oil tank through the liquid outlet pipe, the liquid outlet pipe is provided with a filter device, and a liquid outlet valve is arranged between the liquid outlet and the filter device; the ventilation main pipe is provided with a ventilation valve, the purging pipe is connected with the liquid outlet pipe through a fan, and the connection part is positioned between the liquid outlet valve and the filtering device; the purging pipe is provided with a purging valve, the exhaust pipe is provided with an exhaust valve, and the nitrogen inlet pipe is provided with a nitrogen valve.
Preferably, the residual liquid collecting tank is provided with a pressure gauge.
Preferably, the residual liquid collecting tank body is provided with a liquid level meter, more preferably, the liquid level meter is a magnetic flap liquid level meter.
Preferably, the fan is a Roots fan.
Preferably, the liquid inlet pipe is provided with a cooler, and the cooler is provided with a refrigerant inlet and a refrigerant outlet. The hot residual oil can be cooled in time, and the gasification of residual oil gas in the residual liquid collecting tank is reduced.
Preferably, the filter device is a duplex filter. The duplex filter is convenient to replace the filter screen, and the efficiency is higher.
Preferably, the liquid outlet pipe is provided with a shower guide valve. The liquid in the liquid outlet pipe can be emptied in time.
Preferably, the exhaust pipe is provided with a flame arrester. Can block fire source and prevent fire.
The pipeline can be provided with a valve according to the control requirement, and the on-off of materials in the corresponding pipeline and the flow of the materials are conveniently controlled through the opening and closing of the valve.
Compared with the prior art, the utility model has the beneficial effects that: the diesel residual liquid is filtered by a filtering device in a mode of filling nitrogen and pressurizing liquid in a residual liquid collecting tank, so that the recovery and recycling of diesel are realized;
The purging pipe can introduce nitrogen for pressing liquid and residual trace gas-phase diesel oil in the residual liquid collecting tank into the liquid outlet pipe through the fan, so that the liquid outlet pipe and the filtering device are purged, and liquid residues are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
In the figure: 1. a raffinate collection tank; 2. a liquid inlet; 3. a vent; 4. a liquid outlet; 5. a liquid inlet pipe; 6. an exhaust pipe; 7. a nitrogen inlet pipe; 8. a purge tube; 9. a liquid outlet pipe; 10. a filtering device; 11. a liquid outlet valve; 12. a blower; 13. a purge valve; 14. an exhaust valve; 15. a nitrogen valve; 16. a pressure gauge; 17. a cooler; 18. a shower guide valve; 19. a flame arrester; 20. and a vent valve.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings.
As shown in fig. 1, the diesel oil recovery device of the natural gas screw compressor comprises a residual liquid collecting tank 1, wherein a liquid inlet 2 and a vent 3 are arranged at the top of the residual liquid collecting tank 1, a liquid outlet 4 is arranged at the bottom of the residual liquid collecting tank 1, the liquid inlet 2 is connected with a liquid inlet pipe 5, and the liquid inlet pipe 5 is connected with a liquid discharge valve at the bottom of the natural gas screw compressor; the vent port 3 is connected with an exhaust pipe 6, a nitrogen inlet pipe 7 and a purging pipe 8 through a vent main pipe, and the exhaust pipe 6 is externally connected with a torch; the liquid outlet 4 is provided with a liquid outlet pipe 9, the liquid outlet 4 is connected with the oil tank through the liquid outlet pipe 9, the liquid outlet pipe 9 is provided with a filter device 10, and a liquid outlet valve 11 is arranged between the liquid outlet 4 and the filter device 10; the purging pipe 8 is connected with the liquid outlet pipe 9 through a fan 12, and the connection part is positioned between the liquid outlet valve 11 and the filtering device 10; the ventilation main pipe is provided with a ventilation valve 20, the purging pipe 8 is provided with a purging valve 13, the exhaust pipe 6 is provided with an exhaust valve 14, and the nitrogen inlet pipe 7 is provided with a nitrogen valve 15.
The residual liquid collecting tank 1 is provided with a pressure gauge 16.
A liquid level meter is arranged on the tank body of the residual liquid collecting tank 1.
Blower 12 is a Roots blower.
The liquid inlet pipe 5 is provided with a cooler 17, and the cooler 17 is provided with a refrigerant inlet and a refrigerant outlet.
The filter device 10 is a duplex filter.
The liquid outlet pipe 9 is provided with a shower guide valve 18.
The exhaust pipe 6 is provided with a flame arrester 19.
The working process is as follows:
The natural gas screw compressor is used for cooling diesel oil discharged during unit shutdown and unit maintenance through a liquid discharge valve through a liquid inlet pipe 5 and a cooler 17, then the diesel oil enters a residual liquid collecting tank 1, when the residual liquid in the residual liquid collecting tank 1 is observed through a liquid level meter and is required to be discharged, an exhaust valve 14 is closed, a vent valve 20 and a nitrogen valve 15 are opened, and nitrogen is introduced into the residual liquid collecting tank 1 for pressurization;
after the pressure gauge 16 observes that the pressure in the tank rises to 0.6MPa, the nitrogen valve 15 is closed;
Slowly opening a liquid outlet valve 11, and at the moment, the diesel oil in the residual liquid collecting tank 1 is sent to an oil tank through a filtering device 10 under the action of the nitrogen pressure at the tank top, so that the impurity of the diesel oil is filtered and recovered;
Observing the liquid level meter, when the liquid level of the tank drops to 200mm, closing the liquid outlet valve 11, closing the nitrogen valve 15, opening the purging valve 13 and the fan 12, purging the filtering device 10 and the liquid outlet pipe 9 by utilizing nitrogen containing trace gas-phase diesel in the residual liquid collecting tank 1, closing the purging valve 13 after purging is completed, opening the exhaust valve 14, and discharging the nitrogen containing trace gas-phase diesel remaining in the residual liquid collecting tank 1 to a torch system.
Claims (8)
1. The natural gas screw compressor diesel oil recovery device comprises a residual liquid collection tank (1), and is characterized in that a liquid inlet (2) and an air vent (3) are arranged at the top of the residual liquid collection tank (1), a liquid outlet (4) is arranged at the bottom of the residual liquid collection tank (1), and the liquid inlet (2) is connected with a liquid inlet pipe (5); the vent (3) is connected with the exhaust pipe (6), the nitrogen inlet pipe (7) and the purging pipe (8) through a vent main pipe; a liquid outlet pipe (9) is arranged on the liquid outlet (4), a filter device (10) is arranged on the liquid outlet pipe (9), and a liquid outlet valve (11) is arranged between the liquid outlet (4) and the filter device (10); the purging pipe (8) is connected with the liquid outlet pipe (9) through a fan (12), and the connection part is positioned between the liquid outlet valve (11) and the filtering device (10); the ventilation main pipe is provided with a ventilation valve (20), the purging pipe (8) is provided with a purging valve (13), the exhaust pipe (6) is provided with an exhaust valve (14), and the nitrogen inlet pipe (7) is provided with a nitrogen valve (15).
2. The natural gas screw compressor diesel oil recovery device according to claim 1, characterized in that a pressure gauge (16) is arranged on the raffinate collection tank (1).
3. The diesel oil recovery device of the natural gas screw compressor according to claim 1, wherein a liquid level meter is arranged on a tank body of the residual liquid collecting tank (1).
4. The natural gas screw compressor diesel recovery device of claim 1, wherein the fan (12) is a roots fan.
5. The natural gas screw compressor diesel oil recovery device according to claim 1, wherein the liquid inlet pipe (5) is provided with a cooler (17), and the cooler (17) is provided with a refrigerant inlet and a refrigerant outlet.
6. A natural gas screw compressor diesel recovery device according to claim 1, characterized in that the filter device (10) is a duplex filter.
7. The natural gas screw compressor diesel oil recovery device according to claim 1, characterized in that a shower valve (18) is arranged on the liquid outlet pipe (9).
8. A natural gas screw compressor diesel recovery device according to claim 1, characterized in that the exhaust pipe (6) is provided with a flame arrester (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323069311.7U CN221197027U (en) | 2023-11-14 | 2023-11-14 | Diesel oil recovery device of natural gas screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323069311.7U CN221197027U (en) | 2023-11-14 | 2023-11-14 | Diesel oil recovery device of natural gas screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221197027U true CN221197027U (en) | 2024-06-21 |
Family
ID=91492052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323069311.7U Active CN221197027U (en) | 2023-11-14 | 2023-11-14 | Diesel oil recovery device of natural gas screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221197027U (en) |
-
2023
- 2023-11-14 CN CN202323069311.7U patent/CN221197027U/en active Active
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