CN212076405U - Oil gas recovery device for oil tank - Google Patents
Oil gas recovery device for oil tank Download PDFInfo
- Publication number
- CN212076405U CN212076405U CN201922498462.1U CN201922498462U CN212076405U CN 212076405 U CN212076405 U CN 212076405U CN 201922498462 U CN201922498462 U CN 201922498462U CN 212076405 U CN212076405 U CN 212076405U
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- China
- Prior art keywords
- oil
- tank
- adsorption
- oil tank
- gas recovery
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- Expired - Fee Related
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- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 238000001179 sorption measurement Methods 0.000 claims abstract description 40
- 238000009833 condensation Methods 0.000 claims abstract description 8
- 230000005494 condensation Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000003463 adsorbent Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 description 5
- 238000003795 desorption Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
The utility model relates to an oil gas recovery technical field, in particular to oil gas recovery unit for oil tank, oil tank and first condensate tank in filling station, through the intake pipe intercommunication between oil tank and the first condensate tank, be provided with pressure sensor and solenoid valve in the intake pipe, the adsorption tank is connected to first condensate tank, the tank deck of adsorption tank is equipped with the atmospheric outlet duct of air discharge after adsorbing in the adsorption tank, the adsorption tank still is provided with the vacuum pump with the pressure reduction in the adsorption tank, the second condensate tank of oil gas condensation in the adsorption tank is connected once more to the adsorption tank, be equipped with the oil return pipe that flows back the liquid oil after the condensation to the oil tank between second condensate tank and the oil tank. The recovery device can recycle the oil gas generated in the oil tank and then flow back into the oil tank, and discharges the gas meeting the national atmospheric standard.
Description
Technical Field
The utility model relates to an oil gas recovery technical field, in particular to an oil gas recovery device for oil tank.
Background
The oil and gas discharged from the oil and gas recovery system of the service station and the oil and gas discharged from the underground oil tank are often released into the air without being effectively recovered.
At present, in several existing oil gas recovery methods, the treatment efficiency of the adsorption method is high, and the adsorption method can easily meet the tail gas emission standard lower than 25mg/l, but the adsorption method can easily generate high-temperature hot spots, and has great potential safety hazards.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the utility model provides an oil gas recovery device for oil tank to solve the problem that proposes in the above-mentioned background art.
The utility model provides a technical scheme that problem among the prior art adopted does: the utility model provides an oil gas recovery unit for oil tank, includes oil tank and the first condensing jar in the filling station, through the intake pipe intercommunication between oil tank and the first condensing jar, be provided with pressure sensor and solenoid valve in the intake pipe, the adsorption tank is connected to first condensing jar, the tank deck of adsorption tank is equipped with the atmospheric outlet duct of air exhaust after adsorbing in the adsorption tank, the adsorption tank still is provided with the vacuum pump that will adsorb jar internal pressure reduction, the second condensing jar of oil gas condensation in the adsorption tank is once more connected to the adsorption tank, be equipped with the oil pipe that returns the liquid oil after the condensation back to the oil tank between second condensing jar and the oil tank.
As the preferred scheme of the utility model, be equipped with the adsorbent in the adsorption tank.
As the preferable scheme of the utility model, the adsorbent is activated carbon.
As the utility model discloses a preferred scheme, the intake pipe sets up to the oil tank with returning oil pipe slope, the intake pipe is not less than 1% with the slope of returning oil pipe and oil tank.
As the preferred scheme of the utility model, the height of outlet pipe apart from ground is not less than 4 meters.
As the preferred proposal of the utility model, the air outlet pipe is provided with an exhaust cap.
Compared with the prior art, the utility model discloses following technological effect has:
the utility model discloses in an oil gas recovery unit for oil tank, this recovery unit can carry out recovery processing with the oil gas that produces in the oil tank in the back flow oil tank, and the gas that accords with national atmospheric standard is discharged to the side.
Drawings
Fig. 1 is a structural diagram of an oil gas recovery device for an oil tank of the present invention.
Reference numbers in the figures: 1. an oil tank; 2. a first condensing tank; 3. an air inlet pipe; 4. a pressure sensor; 5. an electromagnetic valve; 6. an adsorption tank; 7. an air outlet pipe; 8. a vacuum pump; 9. a second condensing tank; 10. an oil return pipe; 11. an exhaust cap.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in figure 1: the utility model provides an oil gas recovery unit for oil tank, oil tank 1 and first condensing tank 2 in filling station, communicate through intake pipe 3 between oil tank 1 and the first condensing tank 2, be provided with pressure sensor 4 and solenoid valve 5 in the intake pipe 3, adsorption tank 6 is connected to first condensing tank 2, adsorption tank 6's tank deck is equipped with the atmospheric outlet duct 7 of air discharge after adsorbing in 6 adsorption tanks, adsorption tank 6 still is provided with the vacuum pump 8 that reduces 6 internal pressure of adsorption tanks, 6 connection of adsorption tanks is again with the second condensing tank 9 of the oil gas condensation in 6 adsorption tanks, be equipped with between second condensing tank 9 and the oil tank 1 and flow back oil pipe 10 of 1 oil tank with the liquid oil flow after the condensation.
The working principle is as follows:
1) refrigeration startup
When the pressure sensor 4 of the air inlet pipe 3 of the recovery device senses that the pressure of the oil gas in the oil tank 1 of the gas station rises to a set sensing pressure value, the recovery device starts to operate. After the start, the condensing system starts to operate, when the temperature of the condensing tank is reduced to a set value (such as-30 ℃) for stopping the compressor in the first condensing tank 2, the condensing system stops operating, and the condensing system circulates back and forth according to the set condition, so that the temperature of the first condensing tank 2 is always maintained at the temperature capable of sufficiently liquefying and cooling the oil gas.
2) Adsorption start-up
When the temperature of the first condensing tank 2 reaches a system set value, the device opens the corresponding electromagnetic valve 5, oil gas with certain pressure is introduced into the adsorption tank 6 after being cooled by the first condensing tank 2 through the corresponding pipeline, adsorbent (activated carbon) is arranged in the adsorption tank 6, the oil gas is adsorbed by the adsorbent in the process of passing through the adsorption tank 6, and the adsorbed air is discharged into the atmosphere through a pipeline on the top of the adsorption tank 6.
3) Adsorbent regeneration
Adsorbent after being saturated by oil gas adsorption needs to be regenerated, can retrieve absorbent oil gas simultaneously, and this device utilizes the analytic regeneration adsorbent of low pressure to retrieve oil gas, utilizes vacuum pump 8 to form the low pressure environment, because pressure reduction, the oil gas desorption on the adsorbent, the oil gas of desorption is fully cooled off through second condensate tank 9 earlier to liquid oil form returns oil tank 1 via returning oil pipe 10 way.
4) Stop running
When the pressure sensor 4 of the air inlet pipe 3 of the recovery device senses that the pressure is lower than the resistance value of the air inlet pipe 3 of the system, the stop condition is met, the host automatically stops running, and the system enters a standby state.
Preferably, an adsorbent is arranged in the adsorption tank 6.
Preferably, the adsorbent is activated carbon.
Preferably, the air inlet pipe 3 and the oil return pipe 10 are arranged in a slope direction towards the oil tank 1, and the slopes of the air inlet pipe, the oil return pipe and the oil tank are not less than 1%.
Preferably, the height of the air outlet pipe 7 from the ground is not less than 4 m.
Preferably, an exhaust cap 11 is arranged on the air outlet pipe 7.
Compared with the prior art, the utility model discloses following technological effect has:
the utility model discloses in an oil gas recovery unit for oil tank, this recovery unit can carry out recovery processing with the oil gas that produces in the oil tank 1 in the back flow oil tank 1, and the gas that accords with national atmospheric standard is discharged side by side.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an oil gas recovery unit for oil tank which characterized in that: including oil tank and the first condensing jar in the filling station, through the intake pipe intercommunication between oil tank and the first condensing jar, be provided with pressure sensor and solenoid valve in the intake pipe, the adsorption tank is connected to first condensing jar, the tank deck of adsorption tank is equipped with the atmospheric outlet duct of air exhaust after adsorbing in the adsorption tank, the adsorption tank still is provided with the vacuum pump with the interior pressure reduction of adsorption tank, the second condensing jar of oil gas condensation in the adsorption tank is connected once more to the adsorption tank, be equipped with the oil pipe that returns the liquid oil flow after the condensation to the oil tank between second condensing jar and the oil tank.
2. The oil and gas recovery device for an oil tank according to claim 1, wherein: and an adsorbent is arranged in the adsorption tank.
3. An oil and gas recovery device for an oil tank according to claim 2, characterized in that: the adsorbent is activated carbon.
4. The oil and gas recovery device for an oil tank according to claim 1, wherein: the air inlet pipe and the oil return pipe are arranged towards the oil tank in a sloping mode, and the slopes of the air inlet pipe, the oil return pipe and the oil tank are not less than 1%.
5. The oil and gas recovery device for an oil tank according to claim 1, wherein: the height of the air outlet pipe from the ground is not less than 4 m.
6. The oil and gas recovery device for an oil tank according to claim 1, wherein: an exhaust cap is arranged on the air outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922498462.1U CN212076405U (en) | 2019-12-31 | 2019-12-31 | Oil gas recovery device for oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922498462.1U CN212076405U (en) | 2019-12-31 | 2019-12-31 | Oil gas recovery device for oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212076405U true CN212076405U (en) | 2020-12-04 |
Family
ID=73566456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922498462.1U Expired - Fee Related CN212076405U (en) | 2019-12-31 | 2019-12-31 | Oil gas recovery device for oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212076405U (en) |
-
2019
- 2019-12-31 CN CN201922498462.1U patent/CN212076405U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |