CN207243827U - Below C8 alkane production condensation adsorption recovery apparatus - Google Patents
Below C8 alkane production condensation adsorption recovery apparatus Download PDFInfo
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- CN207243827U CN207243827U CN201721276729.7U CN201721276729U CN207243827U CN 207243827 U CN207243827 U CN 207243827U CN 201721276729 U CN201721276729 U CN 201721276729U CN 207243827 U CN207243827 U CN 207243827U
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Abstract
The utility model provides below C8 alkane production condensation adsorption recovery apparatus.Its technical solution is：Device includes air-breathing and emptying unit, three-level deep condensation unit, circulation absorption unit, oil-collecting recovery unit and operation control unit, preceding Unit four link successively, and operation control unit links respectively with above Unit four.Each oil gas collection manifold combine in air-breathing and emptying unit, through booster fan be sent into three-level deep condensation unit condensation liquefaction, three-level refrigeration case bottom recycling condensate liquid be fed directly to oil-collecting recovery unit liquid storage cut water pot cut water, reach design temperature after be sent into storage tank.The mixed gas of uncooled oil gas and air enters back into circulation absorption unit and carries out adsorption/desorption processing, and tail gas is discharged up to national environmental standard after processing.Each unit is connected by online detection instruments such as liquid level, pressure, temperature with operation control unit module, realizes automation visual operation.The present apparatus is easy to operate, environmental protection and energy saving, is applicable to low concentration petroleum vapor recovery and tail gas qualified discharge.
Description
Technical field
Device for recovering oil and gas technical field is the utility model is related to, especially below C8 alkane production is recycled with condensation adsorption
Device.
Background technology
At present, although common pumping fluid gas recovering device can recycle oil gas, totally set by device
The limitation of parameter is counted, most of device for recovering oil and gas adaptability are poor, are only applicable to the recycling of high-concentration oil vapor, recycling dress
Put tail gas and do not reach present environmentally friendly waste gas emission standard and on the verge of being replaced or transformation；In addition, returning using oil gas adsorbent equipment
Receipts system is designed and adsorbent materials limitation, not high to low concentration petroleum vapor recovery utilization ratio；Using condensation, absorbing process
Cost of investment height of reclaimer, the design of condensing unit part falls behind, it is impossible to realizes multistage continuous condensing refrigerant redundancy
Recycle, cryogenic temperature is low, Oil-gas Separation time length, and refrigeration energy consumption is high, and economic benefit and social benefit are poor.Therefore existing rank
There is an urgent need for release a kind of adjustable low-power consumption device for recovering oil and gas for being suitable for low concentration petroleum vapor recovery and tail gas qualified discharge for section.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided suitable for low concentration petroleum vapor recovery and tail gas row up to standard
Below the C8 alkane production condensation adsorption recovery apparatus for the adjustable low-power consumption petroleum vapor recovery put, its technical solution are：Device
Including air-breathing and unit, three-level deep condensation unit, circulation absorption unit, oil-collecting recovery unit and operation control unit are vented,
Preceding Unit four links successively, and operation control unit links respectively with above Unit four.Each oil gas collection manifold combines in air-breathing and puts
Dummy cell, is sent into three-level deep condensation unit condensation liquefaction, the condensate liquid of three-level refrigeration case bottom recycling is directly defeated through booster fan
Send to oil-collecting recovery unit liquid storage cut water pot cut water, reach design temperature after be sent into storage tank.The mixing of uncooled oil gas and air
Gas enters back into circulation absorption unit and carries out adsorption/desorption processing, and tail gas is discharged up to national environmental standard after processing.Each unit is led to
Cross the online detection instruments such as liquid level, pressure, temperature with operation control unit module to connect, realize automation visual operation.This dress
Easy to operate, environmental protection and energy saving are put, are applicable to low concentration petroleum vapor recovery and tail gas qualified discharge.
First manual butterfly valve, spark arrester, hand valve, pressure sensing are provided with air-breathing and emptying unit inlet manifold's main road
Device, booster fan, the second Hand-operated butterfly valve, back-fire relief emptying cap I, air-breathing and emptying unit are provided with inlet manifold's branch by the
One air inlet pipe is connected with three-level deep condensation unit, three-level deep condensation unit be equipped with three-level refrigeration case and in cold refrigerant compression
Machine, cryogenic refrigeration compressor, air-cooled condenser, condenser/evaporator, serial communication level-one precooling refrigeration case in three-level refrigeration case, two
Cold refrigeration case in level, three-level cryogenic refrigeration case, the first regulating valve, the second regulating valve are respectively equipped with series circuit, the 3rd is adjusted
Valve, level-one precooling refrigeration case bottom connect the first liquid collecting branch line, be equipped with the first liquid collecting branch line the first pressure reducing valve and
First check-valve, cold refrigeration case bottom connects the second liquid collecting branch line in two level, and second is equipped with the second liquid collecting branch line
Pressure reducing valve and second check-valve, three-level cryogenic refrigeration bottom portion connects the 3rd liquid collecting branch line, in the 3rd liquid collecting branch line
Equipped with the 3rd pressure reducing valve and the 3rd check-valves, the first liquid collecting branch line, the second liquid collecting branch line, the 3rd liquid collecting branch line
A manifold is collected to, manifold connects the first air inlet pipe, the second air inlet pipe, the 3rd air inlet pipe, the second air inlet respectively
Pipe connection heat exchange branch, manifold cuts water pot top with liquid storage and connects, three-level cryogenic refrigeration upper box part equipped with refrigeration adsorb into
Tracheae, refrigeration absorption air inlet pipe, which is introduced into after level-one precooling refrigeration case forms detour red copper pipeline, enters circulation absorption unit；Follow
Ring absorbing unit is equipped with adsorption tanks A, adsorption tanks B, and adsorption tanks A and adsorption tanks B are in parallel, and adsorption tanks A and adsorption tanks B tops are equipped with row
Gas switching valve, tonifying Qi solenoid valve A, tonifying Qi solenoid valve B, hand valve and back-fire relief emptying cap II, adsorption tanks adsorption tanks A and adsorption tanks B bottoms
Portion is equipped with air inlet switching valve, desorption switching valve, and desorption switching valve is connected with desorption vacuum pump, desorption vacuum pump outlet and supercharging wind
Machine import is connected by vacuum pump discharges pipe, exhaust switchover valve, tonifying Qi solenoid valve A, tonifying Qi solenoid valve B, air inlet switching valve, desorption
Switching valve, back-fire relief emptying cap II can be automatically opened up and closed；Pipeline between exhaust switchover valve and back-fire relief emptying cap II is equipped with
Hand valve, oil-collecting recovery unit cut water pot including liquid storage, and liquid storage cuts water pot and the pipeline of manifold is equipped with visor, and liquid storage cuts water
Tank another way pipeline is equipped with and cuts water polo valve, liquid storage cut water pot bottom successively with cut water polo valve, first manual ball valve, filter,
Return liquid pump, pressure gauge, the 4th check-valves, the second manual ball valve and storage tank to be connected, liquid storage cuts water pot and is internally provided with overflow baffle, removes
Night cuts and far transmission level meter is equipped with the right side of water pot, and liquid storage is cut and tank deck gas collection pipe is equipped with the top of water pot, in tank deck gas collection pipe
Between be equipped with the 5th check-valves, tank deck petroleum vapor recovery pipe end is connected with booster fan import, and operation control unit is mainly by distribution
Middle control cabinet is formed, and whole device operating system is operated by controlling cabinet in distribution.
The beneficial effects of the utility model：The utility model device can be used for the volatile oil air cooling of the institute such as benzene, aromatic hydrocarbons, naphtha
Solidifying recycling, pressure recovery, condensation temperature are adjustable, are applicable to a variety of places.When internal system pressure, temperature fluctuation amplitude are excessive
Or when there are other abnormal conditions, linkage control back-fire relief emptying cap automatically opens up, and ensures equipment safety even running.Level-one
Waste cold recycles, two level is normally opened, the progressive refrigeration modes of three-level interval, is conducive to improve refrigeration utilization ratio, realizes energy saving
Consumption reduction.Circulation absorption device is advantageously implemented low concentration petroleum vapor recovery, reduces exhaust emissions amount.Liquid storage cuts water pot and is conducive to cut off
Moisture in withdrawal liquid oil product, reduces recycling oil product and recycles cost.The present apparatus is easy to operate, and oil gas recovery rate is high, safety
Reliably, environmental protection and energy saving, adaptable to low concentration petroleum vapor recovery, exhaust emissions is up to standard.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model three-level deep condensation cellular construction schematic diagram；
Fig. 3 is the first air inlet pipe partial structural diagram of the utility model refrigeration case；
Fig. 4 is the second air inlet pipe partial structural diagram of the utility model refrigeration case；
Fig. 5 is the 3rd air inlet pipe partial structural diagram of the utility model refrigeration case.
Embodiment
As shown in Figures 1 to 5, below C8 alkane production condensation adsorption recovery apparatus, mainly by inlet manifold's main road 10-
1st, inlet manifold's branch 10-2, first manual butterfly valve 11-1, the second Hand-operated butterfly valve 11-2, spark arrester 12, hand valve 13, pressure sensing
Device 14, booster fan 15, back-fire relief emptying cap I 16, refrigeration absorption air inlet pipe 20-1, the first liquid collecting branch line 20-2, the second liquid collecting
Branch line 20-3, the 3rd liquid collecting branch line 20-4, manifold 20-5, the first air inlet pipe 20-6, the second air inlet pipe 20-7,
Cold refrigeration case 21- in 3rd air inlet pipe 20-8, heat exchange branch 20-9, three-level refrigeration case 21, level-one precooling refrigeration case 21-1, two level
2nd, three-level cryogenic refrigeration case 21-3, the first pressure reducing valve 22-1, the second pressure reducing valve 22-2, the 3rd pressure reducing valve 22-3, first check-valve
24-1, second check-valve 24-2, the 3rd check-valves 24-3, in cold refrigeration compressor 25-1, cryogenic refrigeration compressor 25-2, air-cooled
Condenser 26-1, condenser/evaporator 26-2, the first regulating valve 27-1, the second regulating valve 27-2, the 3rd regulating valve 27-3, visor
28th, vacuum pump discharges pipe 30, adsorption tanks A31-1, adsorption tanks B31-2, air inlet switching valve 32, desorption switching valve 33, exhaust switching
Valve 34, tonifying Qi solenoid valve A35-1, tonifying Qi solenoid valve B35-2, desorption vacuum pump 36, hand valve 37, back-fire relief emptying cap II 38, tank bottom
Petroleum pipeline 40-1, tank deck gas collection pipe 40-2, liquid storage cut water pot 41, cut water polo valve 42-1, first manual ball valve 42-2, second
Manual ball valve 42-3, filter 43, return liquid pump 44, the 4th check-valves 45-1, the 5th check-valves 45-2, pressure gauge 46, teletransmission liquid
Control cabinet 5 is formed in position meter 47, overflow baffle 48, distribution.
The utility model technological process：Air-breathing and emptying unit：Oil gas imports petroleum vapor recovery by respective gas phase pipeline and fills
Inlet manifold main road 10-1 is put, inlet manifold branch 10-2, inlet manifold's branch 10- are equipped with inlet manifold main road 10-1 front ends
Second Hand-operated butterfly valve 11-2 and emergent back-fire relief emptying cap I 16 are installed on 2；First manual is installed successively in inlet manifold's main road 10-1
Butterfly valve 11-1, spark arrester 12, hand valve 13, pressure sensor 14, booster fan 15, oil gas enter three-level depth through inlet manifold's main road
Spend condensing unit.
With reference to Fig. 2 and Fig. 5, three-level deep condensation unit：Oil gas enters level-one precooling refrigeration case through the first air inlet pipe 20-6
After 21-1, first heat exchange is carried out with refrigeration absorption exhaust pipe 20-1 and be cooled to 3~5 DEG C.Oil gas is in level-one precooling refrigeration case 21-1
The most moisture contained in air can be liquefied, liquid water is entered by the first pressure reducing valve 22-1, first check-valve 24-1
Liquid storage cuts water pot 41, while recovery section cold enters cold refrigeration case 21-2 in two level by the second air inlet pipe 20-7.
Oil gas enters in two level after cold refrigeration case 22-2 through the 2nd air inlet pipe 20-7, is uniformly distributed on fin 29, together
Refrigerant in case in detour red copper pipeline carries out extremely -30 DEG C or so of Cooling capacity exchanging postcooling, detour red copper pipeline external connection
In cold refrigeration compressor 25-1, air-cooled condenser 26-1, the 3rd regulating valve 27-3, condenser/evaporator 26-2 and the first regulating valve
Cold refrigeration compressor refrigerant circulation loop in being formed after 27-1.More than C5 components in oil gas can be carried out condensate liquid by the process
Change, condensate liquid passes through enters liquid storage with the second pressure reducing valve 22-2, the second check-valve 24-2 being connected of cold refrigeration case 21-2 in two level
Water pot 41 is cut, while three-level cryogenic refrigeration case 21-3 is entered by the 3rd air inlet pipe 20-8 after recovery section cold.
Oil gas is uniformly distributed, same case after the 3rd air inlet pipe 20-8 enters three-level cryogenic refrigeration case 21-3 on fin 29
Refrigerant in interior detour red copper pipeline carries out Cooling capacity exchanging postcooling to -55 ~ -65 DEG C, and detour red copper pipeline external connection is deep
The circulation of cryogenic refrigeration compressor refrigerant is formed after cold refrigeration compressor 25-2, condenser/evaporator 26-2, the second regulating valve 27-2
Remaining overwhelming majority hydrocarbon condensation liquefaction, condensate liquid in oil gas can be passed through the 3rd pressure reducing valve 22- by circuit, the process
3rd, the 3rd check-valves 24-3 cuts water pot 41 into liquid storage, and remaining a small amount of not solidifying gas first passes through one by the absorption air inlet pipe 20-1 that freezes
After the 21-1 heat exchange of level precooling refrigeration case, circulation absorption unit is entered back into.
After cold refrigeration compressor 25-1 brings into operation in the middle, condensing agent starts the cold refrigeration compressor refrigerant circulation in and returns
Circulated in road, while precooling carried out to the second refrigeration cycle by the branch 20-9 that exchanges heat, when in second in cold refrigeration case it is warm
Degree is cooled to -30 DEG C, after temperature detection data are uploaded to operation control unit control module, and cryogenic refrigeration compressor 25-2 starts
Start, temperature in three-level cryogenic refrigeration case 21-3 is cooled to setting value（It is preferred that -65 DEG C, it is adjustable）, when the three-level deep cooling of setting
Refrigeration case 21-3 temperature（It is preferred that -65 DEG C, it is adjustable）It is maintained for more than setting time（It is preferred that 10 minutes, it is adjustable）, cryogenic refrigeration compression
The idle machine cylinder of machine 25-1 starts to be stopped successively, when temperature rises to setting value again（It is preferred that -50 DEG C, it is adjustable）, deep cooling
The idle machine cylinder of compressor 25-2 is again started up being cooled to setting value（It is preferred that -65 DEG C, it is adjustable）, circulate successively.
Circulation absorption unit, comprising two adsorption tanks A, adsorption tanks B absorption tank bodies, in refrigeration absorption air inlet pipe 20-1
Oil gas when initially entering adsorption tanks A, air inlet switching valve is opened to A, and exhaust switchover valve 32 is opened to A, and desorption switching valve 33 is to B
Open, desorption vacuum pump 36 carries out adsorption tanks B31-2 the oil gas of negative pressure desorption enrichment, tonifying Qi solenoid valve A35-1 and tonifying Qi electricity
Magnet valve B35-2 is in closed mode, when in adsorption tanks B31-2 be desorbed after the completion of, tonifying Qi solenoid valve B35-2 open, start to
Inflation in adsorption tanks B31-2, after pressure rises to normal pressure in adsorption tanks B31-2, tonifying Qi solenoid valve B35-2 is closed, and is adsorbed at this time
Tank A31-1 completes rich accumulation of oil and gas, and air inlet switching valve is closed to A, is opened to B, when adsorption tanks B31-2 starts to be enriched with oil gas, desorption
Switching valve 33 is opened to A, carries out negative pressure to adsorption tanks A31-1 by being desorbed vacuum pump 36 and take off to take the oil gas of enrichment.Desorption comes out
Oil gas send to 15 air inlet of booster fan into three-level refrigeration case by desorption vacuum pump 36 and carry out condensation liquefaction circulation again.
Above procedure circulation carries out, and realizes adsorption tanks A and adsorption tanks B and carries out alternating sorbent, realizes the thorough recycling to oil gas.
Oil-collecting recovery unit, it is horizontal fluid reservoir that the liquid storage inside unit, which cuts water pot 41, and liquid storage is cut and is provided with water pot 41
Far transmission level meter 47, when recycling oil product reaches certain liquid level, pipeline oil pump starts and starts to convey.From three-level deep condensation list
The liquid water and condensate liquid of member cut water pot 41 through manifold 20-5 into liquid storage, and moisture cuts water polo valve 42-1 by tank bottom in tank
Excision.When recycling oil product reaches design temperature, liquid level, tank inner condensat liquid is by tank bottom petroleum pipeline 40-1 successively by first-hand
Dynamic ball valve 42-2, filter 43, time liquid pump 44, the 4th check-valves 45-1, the second manual ball valve 42-3 enter storage tank.Tank top portion
Oil gas is divided then to pass through 15 air inlet of the 5th check-valves 45-2 connections booster fan by tank deck gas collection pipe 40-2.
Operation control unit：It is equipped with operation control unit in distribution and controls cabinet 5, control cabinet 5 carries configuration system in distribution, adopts
Petroleum vapor recovery overall process and operating status are shown with several dynamic analog pictures, real-time dynamic monitoring, display are each with configuration software
Kind parameter, and automatically generate managerial report.
Claims (5)
- Below 1.C8 alkane production condensation adsorption recovery apparatus, it is characterised in that：Air-breathing and emptying unit inlet manifold's main road （10-1）On be provided with first manual butterfly valve（11-1）, spark arrester（12）, hand valve（13）, pressure sensor（14）, booster fan （15）, inlet manifold's branch（10-2）On be provided with the second Hand-operated butterfly valve（11-2）, back-fire relief emptying cap I（16）, air-breathing and emptying Unit passes through the first air inlet pipe（20-6）Connected with three-level deep condensation unit, three-level deep condensation unit is equipped with three-level refrigeration case （21）Cold refrigeration compressor in and（25-1）, cryogenic refrigeration compressor（25-2）, air-cooled condenser（26-1）, condenser/evaporator （26-2）, three-level refrigeration case（21）Middle serial communication level-one precooling refrigeration case（21-1）, cold refrigeration case in two level（21-2）, three-level Cryogenic refrigeration case（21-3）, the first regulating valve is respectively equipped with series circuit（27-1）, the second regulating valve（27-2）, the 3rd adjust Valve（27-3）, level-one precooling refrigeration case（21-1）Bottom connects the first liquid collecting branch line（20-2）, the first liquid collecting branch line （20-2）In be equipped with the first pressure reducing valve（22-1）And first check-valve（24-1）, cold refrigeration case in two level（21-2）Bottom connection the Two liquid collecting branch lines（20-3）, the second liquid collecting branch line（20-3）In be equipped with the second pressure reducing valve（22-2）And second check-valve （24-2）, three-level cryogenic refrigeration case（21-3）Bottom connects the 3rd liquid collecting branch line（20-4）, the 3rd liquid collecting branch line （20-4）In be equipped with the 3rd pressure reducing valve（22-3）With the 3rd check-valves（24-3）, the first liquid collecting branch line（24-1）, second collection Liquid branch line（24-2）, the 3rd liquid collecting branch line（24-3）It is collected to a manifold（20-5）, manifold（20- 5）The first air inlet pipe is connected respectively（20-6）, the second air inlet pipe（20-7）, the 3rd air inlet pipe（20-8）, the second air inlet pipe（20-7） Connection heat exchange branch（20-9）, manifold（20-5）Water pot is cut with liquid storage（41）Top connects, three-level cryogenic refrigeration case（21- 3）Top is equipped with refrigeration absorption air inlet pipe（20-1）, refrigeration absorption air inlet pipe（20-1）It is introduced into level-one precooling refrigeration case（21-1） Enter circulation absorption unit after forming detour red copper pipeline；Circulation absorption unit is equipped with adsorption tanks A（31-1）, adsorption tanks B（31- 2）, adsorption tanks A（31-1）With adsorption tanks B（31-2）Parallel connection, adsorption tanks A（31-1）With adsorption tanks B（31-2）Top is equipped with exhaust Switching valve（34）, tonifying Qi solenoid valve A（35-1）, tonifying Qi solenoid valve B（35-2）, hand valve（37）Cap II is vented with back-fire relief（38）, Adsorption tanks adsorption tanks A（31-1）With adsorption tanks B（31-2）Bottom is equipped with air inlet switching valve（32）, desorption switching valve（33）, take off Attached switching valve（33）With being desorbed vacuum pump（36）Connection, is desorbed vacuum pump（36）Outlet and booster fan（15）Import passes through vacuum Pump exhaust pipe（30）Connection, exhaust switchover valve（34）, tonifying Qi solenoid valve A（35-1）, tonifying Qi solenoid valve B（35-2）, into autogenous cutting Change valve（32）, desorption switching valve（33）, back-fire relief emptying cap II（38）It can automatically open up and close；Exhaust switchover valve（34）With back-fire relief It is vented cap II（38）Between pipeline be equipped with hand valve（37）, oil-collecting recovery unit cuts water pot including liquid storage（41）, liquid storage cuts water Tank（41）With manifold（20-5）Pipeline be equipped with visor（28）, liquid storage cuts water pot（41）Another way pipeline is equipped with and cuts water Ball valve（42-1）, liquid storage cuts water pot（41）Bottom is successively with cutting water polo valve（42-1）, first manual ball valve（42-2）, filter （43）, return liquid pump（44）, pressure gauge（46）, the 4th check-valves（45-1）, the second manual ball valve（42-3）And storage tank is connected, liquid storage Cut water pot（41）It is internally provided with overflow baffle（48）, New Year's Eve cuts water pot（41）Right side is equipped with far transmission level meter（47）, liquid storage cuts water Tank（41）Top is equipped with tank deck gas collection pipe（40-2）, tank deck gas collection pipe（40-2）Centre is equipped with the 5th check-valves（45- 2）, tank deck gas collection pipe（40-2）The same booster fan in end（15）Import is connected, and operation control unit in distribution mainly by controlling Cabinet（5）Form, whole device operating system in distribution by controlling cabinet（5）Operation.
- 2. below C8 alkane production condensation adsorption recovery apparatus according to claim 1, it is characterised in that：Controlled in distribution Cabinet（5）With configuration system, configuration software is used to show petroleum vapor recovery overall process and operating status with several dynamic analog pictures, Real-time dynamic monitoring, display various parameters, and automatically generate managerial report.
- 3. below C8 alkane production condensation adsorption recovery apparatus according to claim 1 or 2, it is characterised in that：Air-breathing And emptying unit, three-level deep condensation unit, circulation absorption unit, oil-collecting recovery unit link successively.
- 4. below C8 alkane production condensation adsorption recovery apparatus according to claim 1 or 2, it is characterised in that：Operation Control unit links respectively with air-breathing and emptying unit, three-level deep condensation unit, circulation absorption unit, oil-collecting recovery unit.
- 5. below C8 alkane production condensation adsorption recovery apparatus according to claim 1 or 2, it is characterised in that：Air-breathing And emptying unit, three-level deep condensation unit, circulation absorption unit, oil-collecting recovery unit are examined by liquid level, pressure, temperature online Measurement equipment connects with operation control unit module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721276729.7U CN207243827U (en) | 2017-09-30 | 2017-09-30 | Below C8 alkane production condensation adsorption recovery apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721276729.7U CN207243827U (en) | 2017-09-30 | 2017-09-30 | Below C8 alkane production condensation adsorption recovery apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733761A (en) * | 2019-03-11 | 2019-05-10 | 中化扬州石化码头仓储有限公司 | A kind of inner wall of oil tank cleaning device and oil tank gas recovery system for oil |
| CN111156418A (en) * | 2018-11-08 | 2020-05-15 | 中国石油化工股份有限公司 | Recovery system for liquefied hydrocarbons |
| CN112082088A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | System and method for recovering residual liquid in loading and unloading of liquefied hydrocarbon |
| CN112082086A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Supercharged liquefied hydrocarbon loading and unloading residual liquid recovery system and method |
-
2017
- 2017-09-30 CN CN201721276729.7U patent/CN207243827U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156418A (en) * | 2018-11-08 | 2020-05-15 | 中国石油化工股份有限公司 | Recovery system for liquefied hydrocarbons |
| CN109733761A (en) * | 2019-03-11 | 2019-05-10 | 中化扬州石化码头仓储有限公司 | A kind of inner wall of oil tank cleaning device and oil tank gas recovery system for oil |
| CN112082088A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | System and method for recovering residual liquid in loading and unloading of liquefied hydrocarbon |
| CN112082086A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Supercharged liquefied hydrocarbon loading and unloading residual liquid recovery system and method |
| CN112082086B (en) * | 2019-06-12 | 2022-06-28 | 中国石油化工股份有限公司 | Supercharged liquefied hydrocarbon loading and unloading residual liquid recovery system and method |
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