CN211159155U - Filling station's cubic vapor recovery system device - Google Patents
Filling station's cubic vapor recovery system device Download PDFInfo
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- CN211159155U CN211159155U CN201921802134.XU CN201921802134U CN211159155U CN 211159155 U CN211159155 U CN 211159155U CN 201921802134 U CN201921802134 U CN 201921802134U CN 211159155 U CN211159155 U CN 211159155U
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Abstract
The utility model discloses a tertiary oil gas recovery device of a gas station, which comprises an adsorption tank, a vacuum pump and a buried storage tank; the bottom of two adsorption tanks is connected with two branch air inlet lines of air inlet pipeline respectively, the bottom of two adsorption tanks still is connected with two branch vacuum pumping lines of vacuum pumping pipeline respectively, vacuum pumping pipeline is connected with the vacuum pump, still be provided with on the regeneration trachea line of vacuum pump and buried storage tank and be used for preliminary radiating radiator, insert the regeneration trachea line one end that buries in the storage tank still to be connected with gas distributor, bury the oil gas discharge pipeline at storage tank top still and be connected with air inlet pipeline. The utility model has the advantages of simple structure, low cost, high oil gas recovery efficiency through the adsorption, regeneration and absorption treatment processes of multiple cycles; the buried storage tank replaces an absorption tower to complete an absorption link, and a lean and rich oil pump is not required to be configured, so that the primary investment can be greatly reduced, and the occupied area can be reduced.
Description
Technical Field
The utility model relates to a filling station's cubic vapor recovery system technical field especially relates to a filling station's cubic vapor recovery system device.
Background
The gasoline inevitably has the problem of a large amount of oil gas volatilization in the storage and transportation process, and the volatile VOCs not only brings serious environmental pollution and resource waste, but also influences human health and causes potential safety hazard. Therefore, the recovery of the VOCs in the oil and gas storage and transportation process is more and more emphasized.
At present, the oil gas recovery technology mainly comprises four process routes of an adsorption method, a condensation method, an absorption method and a membrane separation method.
The adsorption method (also called adsorption-absorption method) has the advantages of simple structure, low operation energy consumption, stable operation, high recovery rate and the like, and is widely applied to oil gas recovery in oil depots. However, the recovery technology has the problems of large occupied area, high absorbent requirement and the like, the occupied area of a gas station is limited, and an adsorption method is difficult to adopt in oil gas recovery of the gas station.
SUMMERY OF THE UTILITY MODEL
For solving the big, absorbent requirement high grade technical problem of area that current oil gas adsorption method retrieves the existence, the utility model discloses a cubic oil gas recovery unit of filling station.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tertiary oil gas recovery device of a gas station comprises two adsorption tanks arranged in parallel, a vacuum pump connected with the two adsorption tanks, and a buried storage tank connected with the vacuum pump; the bottom of two adsorption tanks is connected with two inlet branch pipelines of inlet line respectively, and the bottom of two adsorption tanks still is connected with two evacuation branch pipelines of evacuation pipeline respectively, and evacuation pipeline is connected with the vacuum pump, still be provided with on the vacuum pump and the regeneration trachea line of burying the ground storage tank and be used for preliminary radiating radiator, insert the regeneration trachea line one end of burying in the ground storage tank still be connected with gas distributor, and the oil gas discharge pipeline at burying the ground storage tank top still is connected with inlet line.
The technical scheme of the utility model still include, two the incessant alternate operation of adsorption tanks, when one of them adsorption tanks is in adsorption state, another adsorption tank is in regeneration state.
The technical scheme of the utility model still include, two the top of adsorption tank all is connected with the exhaust pipe line, still installs exhaust valve door and sweeps the valve on the exhaust pipe line.
The technical scheme of the utility model still includes, two all be equipped with the active carbon for vapor recovery in the adsorption tanks.
The technical scheme of the utility model still include, all be equipped with electric control valve on two inlet manifold lines, two evacuation branch lines.
The technical scheme of the utility model still include, the vacuum pump adopts vortex type vacuum pump, carries out the evacuation to the adsorption tank and realizes the high concentration oil gas regeneration process.
The technical scheme of the utility model still include, gas distributor submergence in bury ground below the oil level in the storage tank.
The utility model has the advantages that,
1. the buried storage tank of the gas station is used for replacing an absorption tower of a conventional adsorption method oil gas recovery device to complete an absorption link, and a lean oil pump and a rich oil pump are not required to be configured, so that the primary investment can be greatly reduced, and the occupied area can be reduced.
2. The scroll vacuum pump is used for replacing a screw vacuum pump, so that the cost of the vacuum pump is reduced.
3. The recovery device has simple structure and low cost, and the oil gas is subjected to repeated cyclic adsorption, regeneration and absorption treatment processes, so that the oil gas recovery efficiency is high.
Drawings
Fig. 1 is a schematic structural view of an oil gas recovery device in the present invention;
fig. 2 is the structural schematic diagram of the oil gas recovery system in the utility model.
Wherein, 1-an adsorption tank; 2-a vacuum pump; 3-a radiator; 4, burying a storage tank; 5-a gas distributor; 6-an electric control valve; 7-purge valve; 8-an air inlet; 9-a discharge port; 10-an oil gas recovery device; 11-high grade buried tank; 12-low grade buried tank; 13-an air intake line; 14-a regeneration gas line; 15-a tail gas discharge line; 16-oil and gas discharge lines; 17-an upper computer; 18-cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, a tertiary oil gas recovery device 10 of a gas station comprises two adsorption tanks 1 arranged in parallel, a vacuum pump 2 connected with the two adsorption tanks 1, and a buried storage tank 4 connected with the vacuum pump 2; the bottom parts of the two adsorption tanks 1 are respectively connected with two gas inlet branch pipelines of a gas inlet pipeline 13, the bottom parts of the two adsorption tanks 1 are also respectively connected with two vacuumizing branch pipelines of a vacuumizing pipeline, the vacuumizing pipeline is connected with a vacuum pump 2, the vacuum pump 2 and a regenerated gas pipeline 14 of the buried storage tank 4 are also provided with a radiator 3 for preliminary heat dissipation, one end of the regenerated gas pipeline 14 connected into the buried storage tank 4 is also connected with a gas distributor 5, and an oil gas discharge pipeline 16 at the top part of the buried storage tank 4 is also connected with the gas inlet pipeline 13; when the gas distributor 5 in the buried storage tank 4 is installed, the manhole of the buried storage tank 4 needs to be modified, the gas distributor 5 is placed into the buried storage tank 4 from the manhole, gas is dispersed below the oil level of the buried storage tank 4 through the gas distributor 5, and the oil gas absorption recovery link is completed.
Particularly, the two adsorption tanks 1 continuously and alternately operate, wherein when one adsorption tank 1 is in an adsorption state, the other adsorption tank 1 is in a regeneration state.
Particularly, the tops of the two adsorption tanks 1 are connected with an exhaust pipeline, an exhaust valve and a purging valve 7 are further mounted on the exhaust pipeline, and the exhaust valve and the purging valve 7 are used for cleaning the adsorption tanks 1.
In particular, the two adsorption tanks 1 are respectively filled with active carbon for recovering oil gas to absorb VOCs in the oil gas, the active carbon has selective adsorption and can adsorb hydrocarbon components in the gasoline to the surface of the active carbon, and air components pass through the active carbon and are discharged through a discharge port 9 of a tail gas discharge pipeline 15 at the top of the adsorption tank 1 to reach the standard.
Particularly, the two air inlet branch pipelines and the two vacuumizing branch pipelines are respectively provided with an electric control valve 6, the electric control valves 6 on the air inlet branch pipelines are used for controlling the opening and closing of the oil-gas adsorption process, and the electric control valves 6 on the vacuumizing branch pipelines are used for controlling the opening and closing of the oil-gas regeneration process.
In particular, the vacuum pump 2 adopts a scroll vacuum pump 2 to replace a screw vacuum pump 2 in the conventional adsorption method oil gas recovery device 10, the adsorption tank 1 is vacuumized to realize a high-concentration oil gas regeneration process, and the cost of the vacuum pump 2 is greatly reduced.
In particular, the gas distributor 5 is immersed below the oil surface in the buried storage tank 4, and the oil gas is absorbed by the gasoline in a bubbling manner.
In the utility model, the air inlet 8 on the oil gas clean air inlet pipeline 13 enters the recovery device, the activated carbon in the adsorption tanks 1 is firstly used for adsorption in the recovery device, the electric control valve 6 on the corresponding air inlet branch pipeline is closed after the adsorption in one of the adsorption tanks 1 is saturated, the vacuum pump 2 is started to vacuumize the adsorption tanks 1 to realize the oil gas regeneration, the flowmeter is arranged on the air inlet pipeline 13, the volume of the oil gas entering the active carbon bed layer can be calculated in an accumulated way, when the oil gas is accumulated to a set value, the other adsorption tank 1 starts to adsorb by switching the electric control valve 6, the vortex vacuum pump 2 is started to vacuumize the adsorption tank 1 when regenerating, when the pressure of the adsorption tank 1 is reduced, the adsorption capacity of the active carbon is weakened, hydrocarbon components adsorbed on the activated carbon can be desorbed from the activated carbon, so that the activated carbon can be recycled; the two adsorption tanks 1 continuously and alternately perform adsorption and regeneration processes, regenerated high-concentration oil gas is cooled through the radiator 3, then sent into the buried storage tank 4 of the gas station, dispersed by the gas distributor 5 and absorbed by gasoline in the buried storage tank 4, unabsorbed oil gas enters the oil gas recovery device 10 through the oil gas discharge pipeline 16 again, and the adsorption, regeneration and absorption processes are performed in a circulating mode again.
A gas station's tertiary oil gas recovery system, one end of the above-mentioned recovery unit air inlet pipeline 13 links with high-grade buried tank 11, the regenerated gas pipeline 14 links with low-grade buried tank 12, high-grade buried tank 11, low-grade buried tank 12 are all linked with oil gas discharge line 16, the oil gas is discharged from oil gas discharge line 16 when the apparatus is unusual, avoid burying the tank to suppress the pressure and cause the potential safety hazard; after the oil gas recovery processing, the gas up to the standard is exhausted through a tail gas exhaust pipeline 15, the recovery device is also in communication connection with an upper computer 17 through a cable 18, and the upper computer 17 can monitor and operate the recovery device.
In particular, various detection instruments such as a flowmeter, a micro-pressure sensor and a control valve are also installed on the air inlet pipeline 13, the oil gas recovery system realizes automatic control through the PC L, the control valve is opened when the pressure reaches a set value, oil gas enters the recovery device, and the control valve is closed when the pressure is lower than the set value.
In addition, a plurality of process alarms are designed in the system, and when a fault occurs, the upper computer 17 can prompt an operator through sound and light alarm.
In the conventional adsorption method oil gas recovery device 10, there are two adsorption tanks 1 which run alternately, one or a group of screw vacuum pumps 2, two pipeline pumps and one absorption tower. The oil gas is collected and then firstly enters the adsorption tanks 1, the two adsorption tanks 1 alternately run, one is in an adsorption state, and the other is in a regeneration or waiting state. When one adsorption tank 1 is saturated in adsorption, the adsorption tank 1 is switched to another adsorption tank 1 for adsorption, meanwhile, a vacuum pump 2 is started to perform vacuumizing regeneration treatment on the adsorption tank 1 saturated in adsorption, and oil gas is regenerated from the adsorption material and then sent to a subsequent absorption tower for absorption; the absorption tower is also connected with an absorption oil storage tank through two pipeline pumps, wherein the lean oil pump sends absorption oil into the tower top to absorb regenerated oil gas, and the absorbed rich oil is pumped back to the storage tank through the rich oil pump.
The utility model discloses compare with conventional adsorption method vapor recovery system, the utility model discloses utilize filling station's the absorption tower that buries ground storage tank 4 and replace conventional adsorption method vapor recovery system device 10 to accomplish the absorption link, and need not to dispose poor, rich oil pump, the equipment investment is few, but area greatly reduced also.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. A tertiary oil gas recovery device of a gas station is characterized by comprising two adsorption tanks arranged in parallel, a vacuum pump connected with the two adsorption tanks, and a buried storage tank connected with the vacuum pump; the bottom of two adsorption tanks is connected with two inlet branch pipelines of inlet line respectively, and the bottom of two adsorption tanks still is connected with two evacuation branch pipelines of evacuation pipeline respectively, and evacuation pipeline is connected with the vacuum pump, still be provided with on the vacuum pump and the regeneration trachea line of burying the ground storage tank and be used for preliminary radiating radiator, insert the regeneration trachea line one end of burying in the ground storage tank still be connected with gas distributor, and the oil gas discharge pipeline at burying the ground storage tank top still is connected with inlet line.
2. The apparatus of claim 1, wherein two of said canisters are continuously operated alternately, and one canister is in an adsorption state while the other canister is in a regeneration state.
3. The tertiary oil and gas recovery device of a gas station as claimed in claim 2, wherein the tops of the two adsorption tanks are connected with an exhaust pipeline, and an exhaust valve and a purge valve are further installed on the exhaust pipeline.
4. The tertiary oil and gas recovery device of a gas station as claimed in claim 3, wherein two adsorption tanks are filled with activated carbon for oil and gas recovery.
5. The tertiary oil and gas recovery device of a gas station as claimed in claim 1, wherein electrically controlled valves are provided on both of the branch inlet lines and both of the branch vacuum lines.
6. The tertiary oil and gas recovery device for the gas station as claimed in claim 1, wherein the vacuum pump is a scroll vacuum pump, and the adsorption tank is vacuumized to realize a high-concentration oil and gas regeneration process.
7. A service station tertiary oil gas recovery device as claimed in claim 1, wherein said gas distributor is submerged below the oil level in said buried storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921802134.XU CN211159155U (en) | 2019-10-25 | 2019-10-25 | Filling station's cubic vapor recovery system device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921802134.XU CN211159155U (en) | 2019-10-25 | 2019-10-25 | Filling station's cubic vapor recovery system device |
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| CN211159155U true CN211159155U (en) | 2020-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585851A (en) * | 2019-10-25 | 2019-12-20 | 青岛诺诚化学品安全科技有限公司 | Filling station's cubic vapor recovery system device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585851A (en) * | 2019-10-25 | 2019-12-20 | 青岛诺诚化学品安全科技有限公司 | Filling station's cubic vapor recovery system device |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Patentee after: QINGDAO NUOCHENG CHEMICAL SAFETY TECHNOLOGY CO.,LTD. Address before: 266216 No.7 Shanxiu Road, Huashan Town, Jimo City, Qingdao City, Shandong Province Patentee before: QINGDAO NUOCHENG CHEMICAL SAFETY TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |