CN208177176U - A kind of efficient stable condensation adsorption system for petroleum vapor recovery - Google Patents
A kind of efficient stable condensation adsorption system for petroleum vapor recovery Download PDFInfo
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- CN208177176U CN208177176U CN201820308308.6U CN201820308308U CN208177176U CN 208177176 U CN208177176 U CN 208177176U CN 201820308308 U CN201820308308 U CN 201820308308U CN 208177176 U CN208177176 U CN 208177176U
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Abstract
The utility model discloses a kind of efficient stable condensation adsorption systems for petroleum vapor recovery, it is related to Oil Recovery technical field, it further include roots blower, water cooler, gas-gas heat exchanger and three-level superposition type binary channels condensation unit including surge tank, adsorption tanks group and vacuum pump；Surge tank connects oil gas collection general pipeline, roots blower, roots blower connects water cooler, and water cooler connects gas-gas heat exchanger, and adsorption tanks group connects gas-gas heat exchanger, vacuum pump connects adsorption tanks group and surge tank, and three-level superposition type binary channels condenses unit and connects gas-gas heat exchanger；Three-level superposition type binary channels condensation unit includes sequentially connected level-one condensation unit, B-grade condensation unit and three-level condensation unit, and the outlet of the entrance and three-level condensation unit of level-one condensation unit is connect with gas-gas heat exchanger.The system oil vapor treatment is high-efficient, and exhaust gas composition concentration is far below national recent regulations requirement, and energy effective utilizations all in system can be saved the energy.
Description
Technical field
The present invention relates to Oil Recovery technical fields, condense and inhale more particularly to a kind of efficient stable for petroleum vapor recovery
Attached system.
Background technique
During oil product storage, fortune, pin, the effumability of oil product not only causes largely to be lost, while but also atmosphere
It pollutes increasingly serious.In recent years, country has persistently issued relevant atmospheric pollution control policy.State Council prints and distributes about " atmosphere is dirty
Dye prevention and treatment action plan " it is whole in the industries such as petrochemical industry, organic chemical industry, external coating, packages printing implementation volatile organic matter synthesis
It controls；The petroleum vapor recovery improvement for completing gas station, storage tank farm, tank truck in limited time, actively develops oil gas in crude oil oil product terminal and returns
Accept reason for medical treatment.2015, country issued " petroleum refining industry pollutant emission standard " (GB31570-2015) and " petrochemistry
Emission of industrial pollutants standard " (GB31571-2015), it is put forward for the first time and some amorphous emission sources control in factory, together
When define each Enterprise Boundary pollutant, wherein non-methane total hydrocarbons class 4mg/m3, benzene 0.4mg/m3, toluene 0.8mg/
m3, dimethylbenzene 0.8mg/m3.Currently, many emission sources and oil vapor treatment system cannot still reach the emission request of new standard, and permitted
More new standards have been strict in the national standard in the U.S., this mean that China in terms of using energy source and environmental protection to oil product storage,
Fortune, pin are put forward new requirements.
The country mostly uses condensation, absorption and sorption, burning and combinations thereof treatment process greatly at present, can handle the volatilization of oil product,
But operating cost is high, it is difficult to stably reaching standard discharge, still in process optimization, overall performance improvement stage.Currently, mature
Petrochemical industry organic exhaust gas recovery processing technology by the developed countries such as America and Europe monopolize.For example, Air Products company of the U.S.
Using compression condensation+pressure-variable adsorption recovery processing technique (Patent No. US6576043B2), first processing air pressure is reduced to
3.0MPa or more, then by multi-stage condensing, the temperature for handling gas is reduced to -45 DEG C or less and recycles most hydrocarbon therein
Class, then almost all of hydro carbons is recycled through pressure-variable adsorption.But the technique compressibility invests the dust that high power consumption is big, in processing gas
Compressor and whole system safety and stability can be seriously affected.Therefore, stabilising system, reduction energy consumption, while ensuring treatment effeciency pair
It is most important that condensation adsorption system is applied to petroleum vapor recovery, qualified discharge.
Summary of the invention
The present invention in view of the above technical problems, the shortcomings that overcoming the prior art, provides a kind of for the efficient of petroleum vapor recovery
Stablize condensation adsorption system and improve the efficiency of device for recovering oil and gas to reduce the energy consumption of whole system, it is ensured that the row up to standard of tail gas
It puts.
In order to solve the above technical problems, the present invention provides a kind of efficient stable condensation adsorption system for petroleum vapor recovery
System, including surge tank, adsorption tanks group and vacuum pump, further include roots blower, water cooler, gas-gas heat exchanger and three-level superposition type
Binary channels condenses unit；
The entrance of surge tank connects oil gas collection general pipeline, and the outlet of surge tank connects roots blower, and roots blower connects water
The entrance of cooler, the entrance of the outlet connection gas-gas heat exchanger of water cooler, adsorption tanks group connect the outlet of gas-gas heat exchanger,
Vacuum pump connects adsorption tanks group and surge tank, and three-level superposition type binary channels condenses unit and connects gas-gas heat exchanger；
Three-level superposition type binary channels condensation unit includes sequentially connected level-one condensation unit, B-grade condensation unit and three-level
Unit is condensed, the outlet of the entrance and three-level condensation unit of level-one condensation unit is connect with gas-gas heat exchanger.
Technical effect: the present invention adsorption system in parallel with multiple adsorption tanks using three-level superposition type binary channels condenser system
Organic coupling, condenser system final process oil gas efficiency are higher than 90%, and total system handles exhaust of oil up to the newest mark of country
It is quasi-.Efficiency of oil & gas processing of the present invention is high, and exhaust gas composition concentration is far below national recent regulations requirement, and can be by energy all in system
Amount effective use, saves the energy.
The technical solution that the present invention further limits is:
Further, level-one condensation unit includes first-stage condenser A, stage compressor and first-stage condenser B, level-one condensation
The entrance of device A and first-stage condenser B are connect with gas-gas heat exchanger, and first-stage condenser A is sequentially connected stage compressor and level-one
Condenser B, first-stage condenser B are sequentially connected stage compressor and first-stage condenser A；
B-grade condensation unit includes secondary condenser A, split-compressor and secondary condenser B, secondary condenser A and second level
The entrance of condenser B is connect with first-stage condenser A, first-stage condenser B respectively, and secondary condenser A is sequentially connected split-compressor
Split-compressor and secondary condenser A are sequentially connected with secondary condenser B, secondary condenser B；
It includes three-level condenser A, three-stage blower and three-level condenser B, three-level condenser A and three-level that three-level, which condenses unit,
The entrance of condenser B is connect with secondary condenser A, secondary condenser B respectively, and three-level condenser A is sequentially connected three-stage blower
It is sequentially connected three-stage blower and three-level condenser A with three-level condenser B, three-level condenser B, three-level condenser A and three-level are cold
The outlet of condenser B is connect with gas-gas heat exchanger.
A kind of preceding efficient stable condensation adsorption system for petroleum vapor recovery, level-one condense unit, B-grade condensation
Unit and three-level condensation unit are all made of binary channels design and are all made of tubular heat exchanger.
A kind of preceding efficient stable condensation adsorption system for petroleum vapor recovery, adsorption tanks group include at least two simultaneously
The adsorption tanks of connection, adsorption tanks are connect with gas-gas heat exchanger and vacuum pump respectively.
A kind of preceding efficient stable condensation adsorption system for petroleum vapor recovery, adsorption tanks use cylindrical structure, inhale
It is equipped in attached tank adsorbent bed, entrance is equipped with gas distributor.
A kind of preceding efficient stable condensation adsorption system for petroleum vapor recovery, it is adsorbent bed in set that there are three temperature
Monitoring point is spent, three temperature monitoring points are located at adsorbent bed upper, middle and lower segment.
A kind of preceding efficient stable condensation adsorption system for petroleum vapor recovery, the inlet and outlet paving of adsorption tanks
Equipped with wire mesh.
The beneficial effects of the present invention are:
(1) the present invention provides a kind of efficient stable condensation adsorption systems for petroleum vapor recovery, to reduce whole system
Energy consumption, reduce to condensation unit investment, improve the efficiency of device for recovering oil and gas, it is ensured that the qualified discharge of tail gas；
(2) present invention in every level-one condenser system include two condensers, by whole condenser system set pressure drop with
And every level-one condenser system set temperature deploys the refrigerating capacity of two condensers, refrigerating capacity allocation proportion can be prevented excessive or mistake
It is small；
(3) every level-one condenser system is all made of binary channels design and tubular heat exchanger, binary channels design knot in the present invention
The allotment for closing refrigerating capacity can guarantee system continuous and steady operation；
(4) gas distributor is arranged in the entrance of adsorption tanks in the present invention, it is ensured that oil gas is distributed when entering adsorbent bed
Uniformly；
(5) present invention in it is adsorbent bed in set three temperature monitoring points, respectively monitor upper, middle and lower segment adsorbent
Temperature prevents adsorbent bed localized hyperthermia occur；
(6) present invention is laid with wire mesh in adsorption tanks import and export, prevents absorbent particles from leaking out；
(7) present invention determines the adsorption tanks quantity of adsorption tanks group parallel connection according to oil gas tolerance, and guarantee system is up to standard.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is condenser system two passway system cooling capacity distribution principle figure in the present invention.
Specific embodiment
A kind of efficient stable condensation adsorption system for petroleum vapor recovery provided in this embodiment, as shown in Figure 1, 2.
The system includes surge tank, adsorption tanks group and vacuum pump, further includes roots blower, water cooler, gas-gas heat exchanger
Unit is condensed with three-level superposition type binary channels.
The entrance of surge tank connects oil gas collection general pipeline, and the outlet of surge tank connects roots blower, and roots blower connects water
The entrance of cooler, the entrance of the outlet connection gas-gas heat exchanger of water cooler, adsorption tanks group connect the outlet of gas-gas heat exchanger,
Vacuum pump connects adsorption tanks group and surge tank, and three-level superposition type binary channels condenses unit and connects gas-gas heat exchanger.
Three-level superposition type binary channels condensation unit includes sequentially connected level-one condensation unit, B-grade condensation unit and three-level
Unit is condensed, the outlet of the entrance and three-level condensation unit of level-one condensation unit is connect with gas-gas heat exchanger.Level-one freezing machine
Group, B-grade condensation unit and three-level condensation unit are all made of binary channels design and are all made of tubular heat exchanger.
Level-one condensation unit includes first-stage condenser A, stage compressor and first-stage condenser B, first-stage condenser A and level-one
The entrance of condenser B is connect with gas-gas heat exchanger, and first-stage condenser A is sequentially connected stage compressor and first-stage condenser B, and one
Grade condenser B is sequentially connected stage compressor and first-stage condenser A.B-grade condensation unit includes secondary condenser A, two-stage compression
The entrance of machine and secondary condenser B, secondary condenser A and secondary condenser B connect with first-stage condenser A, first-stage condenser B respectively
Connect, secondary condenser A is sequentially connected split-compressor and secondary condenser B, secondary condenser B be sequentially connected split-compressor and
Secondary condenser A.Three-level condensation unit include three-level condenser A, three-stage blower and three-level condenser B, three-level condenser A and
The entrance of three-level condenser B is connect with secondary condenser A, secondary condenser B respectively, and three-level condenser A is sequentially connected three-level pressure
Contracting machine and three-level condenser B, three-level condenser B are sequentially connected three-stage blower and three-level condenser A, three-level condenser A and three
The outlet of grade condenser B is connect with gas-gas heat exchanger.
Adsorption tanks group includes that at least two adsorption tanks in parallel, adsorption tanks are connect with gas-gas heat exchanger and vacuum pump respectively.
Adsorption tanks use cylindrical structure, are equipped in adsorption tanks adsorbent bed, and entrance is equipped with gas distributor.In adsorbent bed
If there are three temperature monitoring point, three temperature monitoring points are located at adsorbent bed upper, middle and lower segment.Adsorption tanks into
Mouth and exit are equipped with wire mesh.
System Working Principle: the system passes through whole condenser system and sets pressure drop and every level-one condenser system set temperature
The refrigerating capacity for deploying condenser, can prevent refrigerating capacity allocation proportion excessive or too small, the excessive energy for easily leading to entire recovery system
Consumption rises, and investment increases；It is too small, it can make the temperature for condensing unit that can not drop to assigned temperature, condensation effect is not achieved, imitate
Rate reduces, and not can guarantee system qualified discharge.
Every level-one condenser system includes two condensers, and using binary channels design and tubular heat exchanger, oil gas is from normal
Temperature is cooled to during design temperature step by step, and partial organic substances will become solid-state at low temperature, and a channel frosting needs to carry out
Defrosting operation, then switch to another channel, and binary channels design combines the allotment of refrigerating capacity, it is ensured that system continuous and steady operation.
System work process: in normal conditions, oil gas passes through secondary condenser from first-stage condenser A in condenser system
A is entered back into adsorption system and is further processed to three-level condenser A, it is ensured that final discharge gas reaches national newest standards
Defined requirement.By the way of parallel two towers, adsorbent reactivation was run adsorption tanks group using vacuum pump suction transformation desorption
Cheng Zhong, tower absorption, switches to another tower and continues to adsorb after adsorption saturation, and the tower of adsorption saturation is desorbed using transformation, leads to
Crossing vacuum pump suction makes pressure reduction to the near vacuum in adsorption tanks achieve the effect that desorption, transformation desorption process intermediate pump
The vapor return of outlet to condensing unit entrance carries out circulation reprocessing.
Under frozen condition, level-one is condensed between unit and three-level condensation unit according to default pressure difference 40KPa, when one
When pressure drop between grade condensation unit and three-level condensation unit is close to 40KPa, the solenoid valve of channel B is opened, general refrigeration is distributed
It measures to channel B and is pre-chilled.The temperature spot of three-level condenser B is set as -65 DEG C, when three-level condenser B temperature control point temperature reaches -
Pre-cooling terminates at 65 DEG C, and the solenoid valve of closing passage A, condenser system continues oil gas condensation with channel B.
Under defrosting operating condition, by taking level-one condenses unit as an example, channel A frosting, solenoid valve is closed.The 80 of compressor outlet heat
DEG C freon be directly entered condenser A, carry out heat exchange defrosting.It is calculated by heat exchange, with the outlet condenser A freon for 30 DEG C
It is set to defrosting end point.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (7)
1. a kind of efficient stable condensation adsorption system for petroleum vapor recovery, including surge tank, adsorption tanks group and vacuum pump, special
Sign is: further including roots blower, water cooler, gas-gas heat exchanger and three-level superposition type binary channels condensation unit；
The entrance of the surge tank connects oil gas collection general pipeline, and the outlet of the surge tank connects the roots blower, sieve
Thatch blower connects the entrance of the water cooler, and the outlet of the water cooler connects the entrance of the gas-gas heat exchanger, described
Adsorption tanks group connects the outlet of the gas-gas heat exchanger, and the vacuum pump connects the adsorption tanks group and the surge tank, described
Three-level superposition type binary channels condenses unit and connects the gas-gas heat exchanger；
The three-level superposition type binary channels condensation unit includes sequentially connected level-one condensation unit, B-grade condensation unit and three-level
Unit is condensed, the outlet of the entrance and three-level condensation unit of the level-one condensation unit connects with the gas-gas heat exchanger
It connects.
2. a kind of efficient stable condensation adsorption system for petroleum vapor recovery according to claim 1, it is characterised in that: institute
Stating level-one condensation unit includes first-stage condenser A, stage compressor and first-stage condenser B, the first-stage condenser A and described one
The entrance of grade condenser B connect with the gas-gas heat exchanger, the first-stage condenser A be sequentially connected the stage compressor with
The first-stage condenser B, the first-stage condenser B are sequentially connected the stage compressor and the first-stage condenser A；
The B-grade condensation unit include secondary condenser A, split-compressor and secondary condenser B, the secondary condenser A and
The entrance of the secondary condenser B is connect with the first-stage condenser A, the first-stage condenser B respectively, the secondary condenser
A is sequentially connected the split-compressor and the secondary condenser B, and the secondary condenser B is sequentially connected the two-stage compression
Machine and the secondary condenser A；
Three-level condensation unit include three-level condenser A, three-stage blower and three-level condenser B, the three-level condenser A and
The entrance of the three-level condenser B is connect with the secondary condenser A, the secondary condenser B respectively, the three-level condenser
A is sequentially connected the three-stage blower and the three-level condenser B, and the three-level condenser B is sequentially connected the three stage compression
The outlet of machine and the three-level condenser A, the three-level condenser A and the three-level condenser B with the gas-gas heat exchanger
Connection.
3. a kind of efficient stable condensation adsorption system for petroleum vapor recovery according to claim 2, it is characterised in that: institute
Level-one condensation unit, B-grade condensation unit and three-level condensation unit is stated to be all made of binary channels design and be all made of shell and tube heat exchange
Device.
4. a kind of efficient stable condensation adsorption system for petroleum vapor recovery according to claim 1, it is characterised in that: institute
Stating adsorption tanks group includes at least two adsorption tanks in parallel, the adsorption tanks respectively with the gas-gas heat exchanger and the vacuum pump
Connection.
5. a kind of efficient stable condensation adsorption system for petroleum vapor recovery according to claim 4, it is characterised in that: institute
Adsorption tanks are stated using cylindrical structure, are equipped with adsorbent bed in the adsorption tanks, entrance is equipped with gas distributor.
6. a kind of efficient stable condensation adsorption system for petroleum vapor recovery according to claim 5, it is characterised in that: institute
Temperature monitoring point there are three setting in adsorbent bed is stated, three temperature monitoring points are located at described adsorbent bed
Upper, middle and lower segment.
7. a kind of efficient stable condensation adsorption system for petroleum vapor recovery according to claim 6, it is characterised in that: institute
The inlet and outlet for stating adsorption tanks is equipped with wire mesh.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847399A (en) * | 2019-04-11 | 2019-06-07 | 代金霞 | A kind of volatile materials condensation recycling method and device to be run without interruption using gas self heat defrosting |
| CN110960951A (en) * | 2019-12-20 | 2020-04-07 | 海湾环境科技（北京）股份有限公司 | Organic gas processing device and method |
| CN112391202A (en) * | 2020-10-30 | 2021-02-23 | 南通亚泰工程技术有限公司 | Wharf storage tank, ship inerting and oil gas recovery integrated device |
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2018
- 2018-03-06 CN CN201820308308.6U patent/CN208177176U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847399A (en) * | 2019-04-11 | 2019-06-07 | 代金霞 | A kind of volatile materials condensation recycling method and device to be run without interruption using gas self heat defrosting |
| CN110960951A (en) * | 2019-12-20 | 2020-04-07 | 海湾环境科技（北京）股份有限公司 | Organic gas processing device and method |
| CN112391202A (en) * | 2020-10-30 | 2021-02-23 | 南通亚泰工程技术有限公司 | Wharf storage tank, ship inerting and oil gas recovery integrated device |
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