CN202951274U - Condensation type oil gas recycling equipment - Google Patents
Condensation type oil gas recycling equipment Download PDFInfo
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- CN202951274U CN202951274U CN 201220690575 CN201220690575U CN202951274U CN 202951274 U CN202951274 U CN 202951274U CN 201220690575 CN201220690575 CN 201220690575 CN 201220690575 U CN201220690575 U CN 201220690575U CN 202951274 U CN202951274 U CN 202951274U
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Abstract
The utility model discloses condensation type oil gas recycling equipment. The equipment comprises a nitrogen expansion refrigeration system and an oil gas separating system, wherein the nitrogen expansion refrigeration system comprises a nitrogen making machine, a lower pressure gas storage tank, a circulating compressor, a high pressure gas storage tank, an expander and a brake blower, which are connected in sequence; and the oil gas separating system comprises an oil depot, a gas storage bag, an oil gas supercharger, a heat exchanger and a gas liquid separator, which are connected in sequence. The condensation type oil gas recycling equipment disclosed by the utility model is applicable to a service station, in which oil storage facilitates are scattered in layout, oil gas volatilization amount is large, and condensation point of an oil gas component is relatively pretty high; effective ingredients in the oil gas can be effectively recycled; environment pollution is reduced; and economic benefit of an enterprise is increased.
Description
Technical field
The utility model relates to a kind of oil-gas recovery device, is specifically related to a kind of condensing type oil gas reclaimer.
Background technology
The fueling facilities such as oil depot, oil tank, fuel tank and oil drum are in oiling, emptying process, rising or decline due to oil liquid level, cause the pasta superjacent air space constantly discharge oil vapour or infiltrate air, cause energy waste, produce environmental pollution, bury disaster hidden-trouble, affect fuel oil quality.In order to reduce the volatilization of oil gas, usually adopt one or both methods in the techniques such as absorption and sorption or condensation, the oil gas collection of volatilization is got up, make oil gas change liquid state into from gaseous state, again become fuel oil, reach the purpose of recycling.Common oil-gas recovery method has absorption method, absorption process, membrane separation process and condensation method at present.
Absorption method is to utilize the size of the adsorbents such as active carbon, silica gel to oil gas/air gaseous mixture absorption affinity, realizes separating of oil gas and air.Oil gas is by adsorbents such as active carbons, and oil-gas component is adsorbed on adsorbent surface, and then, through decompression desorption or steam desorption, the oil gas of enrichment is drawn into oil tank with vavuum pump or liquefies with additive method; And the adsorbents such as active carbon are very little to the absorption affinity of air, the tail gas be not adsorbed is through emission by exhaust pipe.The method can reach higher treatment effeciency, and concentration of emission is low, but its complex process, the active carbon life-span is low, has secondary pollution after inactivation, and adsorbent bed easily produces high temperature hotspot, has the problems such as potential safety hazard.
Absorption process is according to the size of the solubility of each component in absorbent in mixed oil and gas, carries out separating of oil gas and air.General oil gas and the absorbent sprayed from the absorption tower top of adopting carries out counter current contacting, and absorbent selectively absorbs hydrocarbon component, and unabsorbed gases discharges through spark arrester, and absorbent enters the desorb of Vacuum solutions cucurbitula, and enrichment oil gas absorbs with oil product again.The method technique is simple, and cost of investment is low, but the rate of recovery is too low, generally can only reach 80% left and right, can't reach existing national standard; It is large that equipment takes up an area space.
Membrane separation process is to utilize special polymeric membrane hydro carbons to be had to the characteristics of preferential permeability, allow oil gas and air Mixture under the promotion of certain pressure, make the oil gas molecule preferentially see through polymeric membrane, constituent of air is trapped discharge, and the oil gas of enrichment transmits the oil return tank or liquefies with additive method.The shortcoming of the method is that membrane lifetime is short, expensive, and operation requirements is high, easily produces discharge layer, has potential safety hazard.
Condensation method is to utilize the vapour pressure difference of hydrocarbons under different temperatures, by cooling, makes some hydrocarbon vapours pressures in oil gas reach the method that supersaturation is condensed into liquid recovery oil gas.Can and finally be discharged into the minimum temperature that organic compound concentration limit in the tail gas in atmosphere is determined condensing unit according to the rate of recovery of the composition of Volatile Gas, requirement, the method technique is simple, safe, and the rate of recovery is high, can directly obtain fluid oil.
In prior art, also do not utilize condensation method the oil depot vaporizing oil-gas to be carried out to the equipment of oil gas recovery, therefore developing a kind of reclaimer of the condensing type oil gas for the oil depot vaporizing oil-gas has great importance, not only can reduce the pollution of neighboring area, gas station environment, and oily vapour can be converted into to fluid oil and return to oil tank, increased Business Economic Benefit.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of reclaimer of the condensing type oil gas for the oil depot vaporizing oil-gas is provided, and with environmental contamination reduction, increases Business Economic Benefit.
The utility model realizes that the technical scheme of above-mentioned purpose is:
A kind of condensing type oil gas reclaimer, comprise nitrogen expansion refrigeration system and oil and gas separating system, and described nitrogen expansion refrigeration system comprises nitrogen making machine, low pressure gasholder, recycle compressor, high pressure tank, decompressor and the braking blower connected successively; Described oil and gas separating system comprises oil depot, air storage bag, oil gas supercharger, heat exchanger and the gas-liquid separator connected successively.
A preferred version of the present utility model, wherein, be connected with air cleaner on described nitrogen making machine.The effect of this air cleaner is the tiny solid particles such as airborne dust are stoped externally, makes clean air enter nitrogen making machine.
A preferred version of the present utility model, wherein, be provided with by-passing valve between described low pressure gasholder and high pressure tank.The effect of this by-passing valve is to regulate the air pressure ratio of high pressure tank and low pressure gasholder, and when low pressure gasholder pressure is lower or high-pressure gas pressure tank when higher, in high pressure tank, gas enters low pressure gasholder by by-passing valve.
A preferred version of the present utility model, wherein, described high pressure tank is connected with the decompressor bearing by air pressure regulator.Decompressor is in running up; it turns scooter per minute 100,000 and turns; high pressure drying nitrogen in high pressure tank arrives decompressor bearing position by air pressure regulator, remains in the decompressor operation process and 0.4～0.5MPa pressure the decompressor bearing is played to the air supporting protective effect.
A preferred version of the present utility model, wherein, be connected with filter and cold regulation valve between described high pressure tank and decompressor.Blade working in decompressor is at fast state, required driving force derives from the high pressure drying nitrogen of high pressure tank, can not add dust in nitrogen, because adopting absorption principle, nitrogen making machine produces nitrogen, the dust that adsorbent occurs is in the course of the work easily brought rear end into, filter is for removing the dust of high pressure drying nitrogen, guarantees that source of the gas enters after decompressor without solid impurity; Decompressor be take the high pressure drying nitrogen as driving force, utilizes the gas expansion refrigeration principle to produce cold; The cold regulation valve can be regulated the tolerance that enters decompressor, thereby realizes the control of different cryogenic temperatures.
A preferred version of the present utility model, wherein, be provided with drier between described oil gas supercharger and heat exchanger.Due to oil depot in fuel-displaced process, extraneous air can be brought a certain amount of steam into, when refueling, this part steam forms wet oil gas with air and oil vapour and enters the oil gas supercharger, wet oil gas is by the adsorbing separation effect of drier, moisture removal is wherein arrived to the appointment dew point, prevent that wet oil gas from entering the heat exchanger generation and freezing to stop up, the oil gas after the drying device is called drier oil gas.
A preferred version of the present utility model, wherein, described gas-liquid separator is provided with differential manometer and magnetic valve.When the oil vapour in drier oil gas passes through heat exchanger, reduction along with temperature, in oil vapour, the higher boiling point hydrocarbon compound is condensed into drop, temperature is lower, condensation number is larger, the oil mass produced is more, and the low boiling air can't condensation in the chilling temperature scope, it is still gaseous state, when two kinds of materials of gas, liquid, during through gas-liquid separator, the fluid oil gravitate is deposited on the separator bottom, when differential manometer detects fuel head and reaches designated value, the control electromagnetic switch valve is opened, and fluid oil is put into to oil depot; After pasta descends, pressure reduction reduces, and while reaching designated value, controls electromagnetic switch valve and closes.
A preferred version of the present utility model, wherein, the top of described gas-liquid separator is connected with drier by pipeline, and this pipeline is through heat exchanger.
The utility model compared with prior art has following beneficial effect:
1, can be applicable to, in the oil storage facility layout disperses, the oil gas volatilization amount is large, oil gas component condensation point is relatively high gas station, can effectively reclaim the active ingredient in oil gas, environmental contamination reduction, increase Business Economic Benefit.
2, simple in structure, to be convenient to modularization and movement, and can to select capacity or the power of each parts according to the flexible in size of oil gas volatilization amount, flexibility is good.
The accompanying drawing explanation
The structural representation of the specific embodiment that Fig. 1 is condensing type oil gas reclaimer of the present utility model.
In figure, each Reference numeral is respectively: 1-oil depot, 2-air storage bag, 3-oil gas supercharger, 4-drier, the 5-heat exchanger, 6-gas-liquid separator, 7-differential manometer, 8-electromagnetic switch valve, the 9-air cleaner, 10-nitrogen making machine, 11-low pressure gasholder, the 12-recycle compressor, 13-high pressure tank, 14-by-passing valve, the 15-air pressure regulator, 16-decompressor bearing, 17-filter, 18-cold regulation valve, 19-decompressor, 20-braking blower.
The specific embodiment
Referring to Fig. 1, condensing type oil gas reclaimer of the present utility model consists of nitrogen expansion refrigeration system and oil and gas separating system, wherein,
Described nitrogen expansion refrigeration system mainly consists of the nitrogen making machine 10, low pressure gasholder 11, recycle compressor 12, high pressure tank 13, decompressor 19 and the braking blower 20 that connect successively, wherein, is connected with air cleaner 9 on nitrogen making machine 10; Be provided with by-passing valve 14 between low pressure gasholder 11 and high pressure tank 12; The decompressor bearing 16 of described decompressor 19 is air-bearing, and high pressure tank 13 is connected with decompressor bearing 16 by air pressure regulator 15; Be connected with filter 17 and cold regulation valve 18 between the air inlet of high pressure tank 13 and decompressor 19.
Described oil and gas separating system comprises oil depot 1, air storage bag 2, oil gas supercharger 3, heat exchanger 5 and the gas-liquid separator 6 connected successively, wherein, between oil gas supercharger 3 and heat exchanger 5, is provided with drier 4; Gas-liquid separator 6 is provided with differential manometer 7 and magnetic valve 8, and differential manometer 7, for adopting the differential pressure pickup of liquid level difference work, by the pressure difference detection liquid level position, and then is exported control signal, controls magnetic valve 8 work.
Enforcement below in conjunction with concrete application to above-mentioned condensing type oil gas reclaimer is further described:
To reclaim gasoline 180m every year
3For target, for gas station's oil tank has configured the skid-mounted type device for recovering oil and gas.According to year reclaiming gasoline 180m
3Target call, setting a year working time is 300 days, moves 12 hours every day, per hour reclaiming gasoline is 50L, required oil and gas content is about 150m
3/ h, select VW-3/4 type oil gas compressor, and its maximum compression pressure is 0.4MPa, and per hour processing tolerance is 180m
3, meet design requirement, certain allowance is arranged.Need each of configuration VW-10/7 type non-lubricating nitrogen compressor and PLPN-9.17/6-0.1 type turbo-expander, according to the gas-storing capacity demand, low pressure gasholder adopts 3m
3Air reservoir, withstand voltage 0.8MPa, high pressure tank adopts 1m
3Air reservoir, withstand voltage 1.05MPa.Select 1 of 1 of GW2-3/6 type system of non heated regeneration dryer and YPO type low-temperature liquefaction ice chest according to oil and gas content.
The course of work of above-mentioned condensing type oil gas reclaimer is: first start nitrogen making machine 10, the drying nitrogen produced enters low pressure gasholder 11, when low pressure gasholder 11 internal pressures reach designated value, start recycle compressor 12, drying nitrogen is pressed into to high pressure tank 13, now, open cold regulation valve 18 and air pressure regulator 15, impurity in pipeline and air accumulator and moisture content are blown down, when the interior gas pressure of decompressor bearing 16 maintains 0.4～0.5MPa, regulate cold regulation valve 18, make the ascending design speed that moves closer to of decompressor rotating speed, regulate by-passing valve 14, make the nitrogen expansion refrigeration system in stable state.Open oil gas supercharger 3, oil vapour with moisture content in oil depot 1 enters oil gas supercharger 3 through air storage bag 2, under the effect of drier 4, moisture content in wet oil gas is removed, the drier oil gas be comprised of dry air and oil vapour enters heat exchanger 5, because the nitrogen expansion refrigeration system preferentially starts, the cold produced drier oil air cooling that temperature is higher but, the hydrocarbon that the gaseous mixture mid-boiling point is higher liquefies because temperature reduces gradually, forming liquid oil droplet is stored in gas-liquid separator 6, increase along with drier oil tolerance, the liquid oil mass constantly increases, cause fluid oil liquid level in gas-liquid separator 6 constantly to raise, when the pressure of oil pressure generation reaches setting value, difference gauge 7 is controlled electromagnetic switch valve 8 and is opened, fluid oil is put back to oil depot 1, when oil level descends, oil pressure reduces, while arriving a certain setting value, difference gauge 7 controls electromagnetic switch valve 8 and cuts out.The low boiling air is owing to liquefying, from gas-liquid separator 6 tops, draw, form dry air, now temperature is lower, reach higher temperature after over-heat-exchanger 5 re-heats, arrive drier 4 tops under gas pressure, purged adsorbing saturated adsorption bed, the moisture content adsorbed in drier is blown down in atmosphere, thereby realize the regeneration of drier 4 interior adsorbents.
When out of service, close oil gas compressor 3, now do not produce drier oil gas, there is no the gas stream mistake in heat exchanger 5.Regulate cold regulation valve 18, reduce gradually decompressor 19 rotating speeds, until it stops, now, close recycle compressor 12, open air pressure regulator 15, the drying nitrogen in high pressure tank 13 is passed through to the 16 places emptying of decompressor bearing.Close nitrogen making machine 10, utilize the interior overbottom pressure of low pressure gasholder 11 to be purged pipeline, maintain dry environment.
Above-mentioned is preferably embodiment of the utility model; but embodiment of the present utility model is not subject to the restriction of foregoing; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (8)
1. a condensing type oil gas reclaimer, comprise nitrogen expansion refrigeration system and oil and gas separating system, it is characterized in that, described nitrogen expansion refrigeration system comprises nitrogen making machine, low pressure gasholder, recycle compressor, high pressure tank, decompressor and the braking blower connected successively; Described oil and gas separating system comprises oil depot, air storage bag, oil gas supercharger, heat exchanger and the gas-liquid separator connected successively.
2. condensing type oil gas reclaimer according to claim 1, is characterized in that, on described nitrogen making machine, is connected with air cleaner.
3. condensing type oil gas reclaimer according to claim 2, is characterized in that, between described low pressure gasholder and high pressure tank, is provided with by-passing valve.
4. condensing type oil gas reclaimer according to claim 3, is characterized in that, described high pressure tank is connected with the decompressor bearing by air pressure regulator.
5. condensing type oil gas reclaimer according to claim 4, is characterized in that, is connected with filter and cold regulation valve between described high pressure tank and decompressor.
6. according to the described condensing type oil gas reclaimer of claim 1～5 any one, it is characterized in that, between described oil gas supercharger and heat exchanger, be provided with drier.
7. condensing type oil gas reclaimer according to claim 6, is characterized in that, described gas-liquid separator is provided with differential manometer and magnetic valve.
8. condensing type oil gas reclaimer according to claim 7, is characterized in that, the top of described gas-liquid separator is connected with drier by pipeline, and this pipeline is through heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690575 CN202951274U (en) | 2012-12-13 | 2012-12-13 | Condensation type oil gas recycling equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690575 CN202951274U (en) | 2012-12-13 | 2012-12-13 | Condensation type oil gas recycling equipment |
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| CN202951274U true CN202951274U (en) | 2013-05-29 |
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| CN 201220690575 Expired - Fee Related CN202951274U (en) | 2012-12-13 | 2012-12-13 | Condensation type oil gas recycling equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879946A (en) * | 2015-06-11 | 2015-09-02 | 南京工业大学 | Novel heat-regeneration type low-temperature circulating refrigeration system |
| CN105641831A (en) * | 2016-04-13 | 2016-06-08 | 张子明 | Oil depot firefighting system |
| CN106092754A (en) * | 2016-06-01 | 2016-11-09 | 天津市长龙宏业燃气设备有限公司 | A kind of liquefied petroleum gas steel cylinder water test unit and method |
| CN110182745A (en) * | 2019-06-27 | 2019-08-30 | 周志明 | A kind of gas recovery system for oil using cool-heat-exchanger |
| CN110239852A (en) * | 2019-05-08 | 2019-09-17 | 江苏科威环保技术有限公司 | Oil storage tank deck is self-styled or double envelope combined systems |
-
2012
- 2012-12-13 CN CN 201220690575 patent/CN202951274U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879946A (en) * | 2015-06-11 | 2015-09-02 | 南京工业大学 | Novel heat-regeneration type low-temperature circulating refrigeration system |
| CN105641831A (en) * | 2016-04-13 | 2016-06-08 | 张子明 | Oil depot firefighting system |
| CN106092754A (en) * | 2016-06-01 | 2016-11-09 | 天津市长龙宏业燃气设备有限公司 | A kind of liquefied petroleum gas steel cylinder water test unit and method |
| CN106092754B (en) * | 2016-06-01 | 2019-01-25 | 天津市长龙宏业燃气设备有限公司 | A kind of liquefied petroleum gas steel cylinder water test unit and method |
| CN110239852A (en) * | 2019-05-08 | 2019-09-17 | 江苏科威环保技术有限公司 | Oil storage tank deck is self-styled or double envelope combined systems |
| CN110239852B (en) * | 2019-05-08 | 2023-11-14 | 江苏科威环保技术有限公司 | Oil storage tank top self-sealing and double-sealing combined system |
| CN110182745A (en) * | 2019-06-27 | 2019-08-30 | 周志明 | A kind of gas recovery system for oil using cool-heat-exchanger |
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| C14 | Grant of patent or utility model | ||
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| CP03 | Change of name, title or address |
Address after: 514733 Meizhou Province, Meixian District, Fu Da hi tech Zone, sunflower, three Patentee after: GUANGDONG ZIYUAN ENVIRONMENTAL PROTECTION CO.,LTD. Address before: 514700 Guangdong city of Meizhou province Meixian Guang Mei Road No. 192 Patentee before: MEIZHOU ENVIRONMENTAL EQUIPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20211213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |