CN202844830U - Recovery device for oil gas generated by smelting waste oil - Google Patents
Recovery device for oil gas generated by smelting waste oil Download PDFInfo
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- CN202844830U CN202844830U CN 201220454140 CN201220454140U CN202844830U CN 202844830 U CN202844830 U CN 202844830U CN 201220454140 CN201220454140 CN 201220454140 CN 201220454140 U CN201220454140 U CN 201220454140U CN 202844830 U CN202844830 U CN 202844830U
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Abstract
The utility model relates to a recovery device for oil gas generated by smelting waste oil. The recovery device is characterized in that the recovery device comprises an oil gas inlet and a precooler connected with an oil gas inlet, the precooler is communicated with a refrigerating machine through a pipeline, the refrigerating machine is connected with an absorption tower through the pipeline, a lean oil nozzle of the absorption tower is connected with a lean oil pump through the pipeline, an oil gas outlet of the absorption tower is connected with an absorber tank through the pipeline, a purification outlet of the absorption tower is connected with a membrane separator through the pipeline, a waste gas outlet of the membrane separator is connected with a thermal storage oxidation device through the pipeline, and a recyclable outlet of the membrane separator is connected with the oil gas inlet through a vacuum pump. After the recovery device is used for recovering and processing the oil gas, the recovery rate reaches above 95%, and the new emission standard of less than 150mg/m<3> is reached; and power equipment is not used in treatment process, and therefore, the recovery device is safe and reliable. In addition, adsorbents such as activated carbon are not used, secondary pollution is avoided. Heat self-circulation is realized in the recovery device, thus the cost and energy sources are saved.
Description
Technical field:
The present invention relates to a kind of waste oil smelting device for recovering oil and gas.
Background technology:
In recent ten years, along with the raising of environmental protection requirement, utilize oil-gas recovery method control to contain the concentration of emission of hydrocarbon mixed gas, reduce oil product evaporating loss and obtained generally attention both domestic and external.
Existing waste oil regeneration method is high-temperature heating--the fractionation-condensation-steps such as processing, because fractionation oil gas out is after condensation process, still have a small amount of air-fuel mixture gas to exist, if this gas directly is discharged in the air without processing, then can pollute atmosphere.In addition, this gas is flammable on-condensible gas, and discharging produces the safe security incidents such as blast easily in less space.
For above-mentioned deficiency, need to work out a kind of waste oil smelting device for recovering oil and gas, prevent from on-condensible gas directly is discharged into the pollution that causes in the air, on-condensible gas to be recycled, energy savings reduces and pollutes.
Summary of the invention:
The purpose of this invention is to provide a kind of waste oil smelting device for recovering oil and gas, not only can prevent from on-condensible gas directly is disposed in the air and pollute, and can improve oil gas recovery rate, simultaneously safe, and reduce oil gas and reclaim and processing cost.
The objective of the invention is to be achieved through the following technical solutions: a kind of waste oil smelting device for recovering oil and gas, it is characterized in that: comprise the oil gas entrance, the forecooler that is connected with the oil gas entrance, forecooler is connected with refrigeration machine by pipeline, refrigeration machine is by pipeline and absorption tower, the oil-poor spout on absorption tower is connected with oil-poor pump by pipeline, the oil gas vent on absorption tower is connected with absorber tank by pipeline, the purge outlet on absorption tower is connected with membrane separator by pipeline, the waste gas outlet of membrane separator is connected with the regenerative oxidation device by pipeline, and the outlet capable of circulation of membrane separator is connected with the oil gas entrance by vavuum pump.
The poor absorbent of described oil-poor pump is selected from finished product or semi-finished product kerosene, light diesel fuel absorbent.
Described refrigeration mechanism cryogen is lithium-bromide solution.
The diffusion barrier of described membrane separator is the high molecular polymer diffusion barrier.
After practical this device recycled oil gas, the rate of recovery reached more than 95%, and reaches the new discharge standard that is lower than 150mg/m3, and processing procedure do not use power-equipment, and is safe and reliable.In addition, owing to do not use the adsorbent such as active carbon, avoided secondary pollution.The heat self-loopa has been realized in device inside, saves cost, energy savings.
Description of drawings:
Fig. 1 is structural representation.
The specific embodiment:
A kind of waste oil smelting device for recovering oil and gas, it is characterized in that: comprise oil gas entrance 1, the forecooler 2 that is connected with the oil gas entrance, forecooler 2 is connected with refrigeration machine 3 by pipeline, refrigeration machine 3 is by pipeline and absorption tower 4, the oil-poor spout on absorption tower 4 is connected with oil-poor pump 8 by pipeline, the oil gas vent on absorption tower 4 is connected with absorber tank 6 by pipeline, the purge outlet on absorption tower 4 is connected with membrane separator 5 by pipeline, the waste gas outlet of membrane separator 5 is connected with regenerative oxidation device 9 by pipeline, and the outlet capable of circulation of membrane separator 5 is connected with oil gas entrance 1 by vavuum pump 7.The poor absorbent of oil-poor pump 8 is selected from finished product or semi-finished product kerosene, light diesel fuel absorbent.Refrigeration machine 3 cold-producing mediums are lithium-bromide solution.The diffusion barrier of membrane separator 5 is the high molecular polymer diffusion barrier.
Enter refrigeration machine after fuel-air mixture is at first cold by the forecooler chance, then enter the absorption tower from the bottom, absorption tower, fuel-air mixture contacting with absorbent is reverse with the oil-poor of cat head spray in the uphill process in the absorption tower, thereby absorb processing, absorbed oil product directly reclaims, jacking enters membrane separator to unabsorbed fuel-air mixture through the absorption tower, oil gas sees through film and is separated under the differential pressure effect of film both sides, enter into forecooler oil gas entrance, carry out next absorption cycle, air and a small amount of oil gas that can't penetrate film enter the regenerative oxidation device, and tail gas is emptying after oxidation.
Described absorption is processed and is referred to adopt finished product or the absorbents such as semi-finished product kerosene, light diesel fuel that oil gas is absorbed processing.Utilize the difference of mixed oil and gas solubility in absorbent, contact with absorbent by mist, one or several component in the gas just is dissolved into and forms solution in the absorbent.Undissolvable component is then in meteorology, so the component of original gas is separated.Simultaneously by lithium bromide refrigerating, to the absorbent processing of lowering the temperature.
It is according to different diffusibilities of gases and the difference between the solubility that described film separates, and utilizes polymer membrane, allows the gaseous mixture of oil gas packetizing/air under certain pressure reduction promotes, and makes oil-gas component preferentially see through film and is reclaimed.
Described regenerative oxidation is to adopt thermal oxidation apparatus to process oil gas, and oil gas carries out heat exchange and absorbs heat in the regenerator by regenerator the time, make it be oxidized to rapidly non-toxic compound, steam and being removed.
After practical this device recycled oil gas, the rate of recovery reached more than 95%, and reaches the new discharge standard that is lower than 150mg/m3, and processing procedure do not use power-equipment, and is safe and reliable.In addition, owing to do not use the adsorbent such as active carbon, avoided secondary pollution.The heat self-loopa has been realized in device inside, saves cost, energy savings.
Claims (4)
1. waste oil smelting device for recovering oil and gas, it is characterized in that: comprise oil gas entrance (1), the forecooler (2) that is connected with the oil gas entrance, forecooler (2) is connected with refrigeration machine (3) by pipeline, refrigeration machine (3) is by pipeline and absorption tower (4), the oil-poor spout on absorption tower (4) is connected with oil-poor pump (8) by pipeline, the oil gas vent on absorption tower (4) is connected with absorber tank (6) by pipeline, the purge outlet on absorption tower (4) is connected with membrane separator (5) by pipeline, the waste gas outlet of membrane separator (5) is connected with regenerative oxidation device (9) by pipeline, and the outlet capable of circulation of membrane separator (5) is connected with oil gas entrance (1) by vavuum pump (7).
2. described waste oil smelting device for recovering oil and gas according to claim 1 is characterized in that: the poor absorbent of oil-poor pump (8) is selected from finished product or semi-finished product kerosene, light diesel fuel absorbent.
3. described waste oil smelting device for recovering oil and gas according to claim 1, it is characterized in that: refrigeration machine (3) cold-producing medium is lithium-bromide solution.
4. described waste oil smelting device for recovering oil and gas according to claim 1, it is characterized in that: the diffusion barrier of membrane separator (5) is the high molecular polymer diffusion barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454140 CN202844830U (en) | 2012-09-07 | 2012-09-07 | Recovery device for oil gas generated by smelting waste oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454140 CN202844830U (en) | 2012-09-07 | 2012-09-07 | Recovery device for oil gas generated by smelting waste oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202844830U true CN202844830U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220454140 Expired - Fee Related CN202844830U (en) | 2012-09-07 | 2012-09-07 | Recovery device for oil gas generated by smelting waste oil |
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| CN (1) | CN202844830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139630A (en) * | 2015-04-12 | 2016-11-23 | 山西汾西机电有限公司 | A kind of composite algorithm petroleum vapor recovery processing method |
-
2012
- 2012-09-07 CN CN 201220454140 patent/CN202844830U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139630A (en) * | 2015-04-12 | 2016-11-23 | 山西汾西机电有限公司 | A kind of composite algorithm petroleum vapor recovery processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20140907 |
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| EXPY | Termination of patent right or utility model |