CN204429047U - A kind of oil vapor treatment system - Google Patents
A kind of oil vapor treatment system Download PDFInfo
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- CN204429047U CN204429047U CN201420863799.2U CN201420863799U CN204429047U CN 204429047 U CN204429047 U CN 204429047U CN 201420863799 U CN201420863799 U CN 201420863799U CN 204429047 U CN204429047 U CN 204429047U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The utility model provides a kind of oil vapor treatment system, comprise condensate recycling device oil gas being carried out to condensation, the cold oil gathering-device be communicated with the oil drain out of condensate recycling device, and condensed Remaining Oil And Gas is incinerated and produces the incinerating apparatus of high-temperature gas and cryogenic gas; Condensate recycling device is communicated with incinerating apparatus with outlet pipe respectively by air inlet pipeline, and air inlet pipeline is used for Remaining Oil And Gas to be delivered to incinerating apparatus, and outlet pipe is used for high-temperature gas to be delivered to condensate recycling device as power; Incinerating apparatus has the gas outlet for discharging cryogenic gas.Oil vapor treatment system of the present utility model, utilize high-temperature gas to start the power of refrigeration as condensate recycling device, capacity usage ratio is high, and oil vapor treatment cost is low; Obtain cold oil and produce economic benefit; Oil decomposition in Remaining Oil And Gas is become inorganic matter by incinerating apparatus, to make to be disposed in aerial cryogenic gas oil content at 100mg/m
3below, far below national standard, do not pollute the environment.
Description
Technical field
The utility model relates to a kind of oil vapor treatment system, belongs to oil-gas recovery device technical field.
Background technology
Oil and products thereof is the mixture of multiple hydrocarbon, and light hydrocarbon component wherein has very strong volatility.In Oil Production, accumulating and sales process, inevitably some light liquid component vaporization, is mixed in air and forms oil gas.For the transhipment of harbour oil product, oil gas is generally produce process oil product being transferred to receiving vessel from storage container.The inner space of receiving vessel was occupied by air before reception oil product, oil product is input to the process of receiving vessel from storage container, the volatilization of part oil product enters the air being arranged in receiving vessel inner space becomes oil gas, the oil product do not volatilized occupies the inner space of receiving vessel gradually, and drives oil gas and discharge from the exhaust outlet of receiving vessel.If oil gas natural dissipation in atmosphere at one's discretion, not only can produce huge potential safety hazard, and can cause huge environmental pollution and the wasting of resources.
The mode of now conventional both at home and abroad process oil gas is that petroleum vapor recovery (Vapor Recovery) and oil gas burn (Vapor Combustion) two kinds of modes.
The domestic processing mode generally adopting petroleum vapor recovery (Vapor Recovery), concrete method has: condensation+absorption method (being also often called condensation+CAM), silica gel+active carbon adsorption+Poor oil absorbing method (in the world conventional active carbon adsorption+oil-poor absorption method), film+absorption method etc.; But adopt above-mentioned recovery method recovery oil gas to there is technological deficiency, first, from oil gas, reclaim the oil product that obtains is worth often lower than the depreciable cost of the electricity charge consumed in removal process, material consumption expense (periodic replacement as the carbon of costliness in carbon adsorption) and one-time investment equipment, that is above-mentioned recovery method is adopted to be greater than income to the cost that oil gas reclaims, therefore the existing oil-gas recovery device of most domestic is all in the state of giving it up, no matter oil gas arbitrarily discharges in air; Secondly, above-mentioned recovery method is difficult to the light hydrocarbon gas reclaiming methane, ethane and so on contained in oil gas, and cause petroleum vapor recovery not thorough, discharge not up to standard, the tail gas after petroleum vapor recovery still can to environment.
Abroad (as the U.S.) generally adopts the processing mode that oil gas burns, concrete grammar arranges the ground flare that oil gas directly can be burnt, the oil gas of the overwhelming majority can thoroughly burn by this method, and thus discharge cleannes are high, can reach very high discharge standard.But shortcoming is: need the dock safety unit between oil gas and ground flare (Dock Safety Unit) to configure the expensive instruments such as oxygen analyzer, and need configure the relevant a series of instrument and equipments of oil gas enrichment, cost is higher; And for ensure oil gas remain in the course of conveying of pipeline higher than UEL 170% and need to add extra natural gas, these natural gases are very low in the price of the U.S., but the price of China very high (being approximately 5-7 times of the U.S.), improve oil vapor treatment cost further; If therefore directly the processing mode that oil gas burns is used for China, then cost is too high, is difficult to large-scale promotion application.
Chinese patent literature CN102350079A discloses a kind of oil gas recycling equipment, as shown in Figure 1, comprises condensing type oil gas recovery unit 01 and the gas engine group 02 of the employing open type compressor connected successively.When oil gas 03 is by condensing type oil gas recovery unit 01, most of oil gas 03 becomes condensate liquid and is recovered; The fraction oil gas be not recovered continues to move forward into gas engine group 02 and burns, and becomes flue gas 04 and discharges.Produce power after gas engine group 02 combustion gasses, drive the open type compressor running in condensing type oil gas recovery unit 01; Above-mentioned gas engine group 02 can also drive small generator to generate electricity, and the electricity sent utilizes for other small-power electromechanical equipments such as the blower fans in condensing type oil gas recovery unit 01.Condensing type oil gas recovery unit can be utilized to be reclaimed by most oil gas condensation although technical scheme disclosed in this patent document is claimed, and the oil gas burning of reclaiming that can not be condensed becomes flue gas discharge, the power drive open type compressor running that gas engine combustion gasses can also be utilized to produce, but there is following many technological deficiencies due to it, cause technique scheme to be difficult to apply in reality; 1. gas concentration and flow all potentially unstables in reality, particularly for harbour petroleum vapor recovery, the flow of oil vapour and concentration are that fluctuation is huge---minimum at the flow of the starting stage oil vapour refueled in cargo tank, concentration extremely low (lower than 1% of volume ratio) and in the last stage of refueling to cargo tank, but the oil minimum very high concentrations of steam flow amount (higher than 60% of volume ratio), these all can make gas engine cannot maintain lasting normal operation; It is one of the primary condition that gas engine runs well that gas concentration is stablized, and gas concentration is changeable in reality, lower gas concentration possibly cannot drive gas engine to run well, then easily cause exhaust emission large compared with high gas concentration, gas concentration fluctuated, causes gas engine to use possibly; 2. the efficiency of gas engine is very low, generally only has about 30%, and drives refrigerant compression mechanism cold most oil gas condensation to be reclaimed a large amount of acting of needs, for ensureing refrigeration, extra power must be introduced in a large number, cause cost recovery significantly to improve, occur that cost is greater than the awkward situation of income; 3. the operation principle of gas engine causes it in use to there is potential safety hazard; For ensureing safety, be generally that fire is prohibited in strict ban on opium-smoking and the opium trade in the gas station, harbour etc. that easily produce oil gas, and the operation principle of gas engine is generally adopt the mode of electricity sparking to ignite oil gas work, this causes existing the potential safety hazard of outside oil gas of igniting.
To sum up, how designing one can significantly reduce oil vapor treatment cost, and improving discharge cleannes, and can produce the oil vapor treatment system of income, is the technical barrier of long-standing problem those skilled in the art.
Utility model content
Therefore, the purpose of this utility model is to overcome the technological deficiency that oil vapor treatment cost in prior art is high, discharge cleannes difference, thus provides one can significantly reduce oil vapor treatment cost, improves discharge cleannes, and can produce the oil vapor treatment system of income.
For this reason, the utility model provides a kind of oil vapor treatment system, comprise the condensate recycling device for carrying out condensation to oil gas, the cold oil gathering-device for collecting cold oil be communicated with the oil drain out of described condensate recycling device, and for condensed Remaining Oil And Gas being carried out incinerating and producing the incinerating apparatus of high-temperature gas and cryogenic gas; Described condensate recycling device is communicated with described incinerating apparatus with outlet pipe respectively by air inlet pipeline, described air inlet pipeline is used for not to be delivered to described incinerating apparatus by the Remaining Oil And Gas of described condensate recycling device condensation, and the high-temperature gas that described outlet pipe is used for described incinerating apparatus to produce is delivered to described condensate recycling device as the power driving described condensate recycling device to start refrigeration; Described incinerating apparatus has the gas outlet for discharging described cryogenic gas.
Also comprise the carbon adsorption device carrying out the oil gas before entering condensate recycling device to process to produce high-concentration oil vapor and low concentration oil gas, described carbon adsorption device is communicated with described condensate recycling device by the first air delivering pipeline, be communicated with described incinerating apparatus by the second air delivering pipeline, described first air delivering pipeline is used for that described high-concentration oil vapor is delivered to described condensate recycling device and carries out condensation, and described second air delivering pipeline is used for described low concentration oil-gas transportation to described incinerating apparatus to incinerate.
Described condensate recycling device for exporting the gas outlet of Remaining Oil And Gas and being communicated with for the air inlet inputting oil gas of carbon adsorption device.
Also comprise cogeneration unit, the high-temperature gas outlet of described cogeneration unit and described incinerating apparatus generates electricity with the high-temperature gas received from described incinerating apparatus, and described cogeneration unit to be communicated with described condensate recycling device by conductor and to be delivered to described condensate recycling device with the electric energy produced generating electricity and to start and freeze.
Described condensate recycling device comprises compression refrigerating apparatus; Described compression refrigerating apparatus comprises the one stage of compression refrigerating plant, two-stage compression refrigerating plant and the three stage compression refrigerating plant that are communicated with successively, the air inlet of described one stage of compression refrigerating plant is the air inlet of described compression refrigerating apparatus, the gas outlet of described three stage compression refrigerating plant is the gas outlet of described compression refrigerating apparatus, and described one stage of compression refrigerating plant, two-stage compression refrigerating plant and three stage compression refrigerating plant all have the oil drain out be communicated with described cold oil gathering-device.
Described one stage of compression refrigerating plant adopts R404A as cold-producing medium, and described two-stage compression refrigerating plant adopts R14 as cold-producing medium, and described three stage compression refrigerating plant adopts R23 as cold-producing medium.
Described condensate recycling device also comprises ammonia and absorbs heat refrigeration apparatus, described ammonia absorbs heat refrigeration apparatus to be had reception oil gas and described oil gas is inputted the oil gas entrance that condensation is carried out in described ammonia absorption heat refrigeration apparatus inside, be communicated with will be absorbed the oil gas vent of the condensed described oil-gas transportation of heat refrigeration apparatus to described compression refrigerating apparatus internal condensation by described ammonia with the air inlet of described compression refrigerating apparatus, and cold oil condensation obtained is delivered to the oil drain out of cold oil gathering-device.
Described ammonia absorbs heat refrigeration apparatus and is started by the high-temperature gas outlet of high-temperature gas pipeline and described incinerating apparatus freeze to receive described high-temperature gas.
Described ammonia absorbs the oil gas entrance of heat refrigeration apparatus and described carbon adsorption device high-concentration oil vapor outlet.
Also comprise and being located on described air inlet pipeline with the forecooler utilizing the low temperature of described Remaining Oil And Gas to lower the temperature to the oil gas before the described incinerating apparatus of input or described carbon adsorption device.
Described incinerating apparatus is RTO or RRTO.
A kind of oil vapor treatment system of the present utility model has the following advantages:
1. oil vapor treatment system of the present utility model, comprise and can carry out condensation to obtain the condensate recycling device of cold oil and Remaining Oil And Gas to oil gas, be communicated with the cold oil gathering-device to collect cold oil with the oil drain out of condensate recycling device, and be communicated with to receive Remaining Oil And Gas with condensate recycling device and Remaining Oil And Gas incinerated the incinerating apparatus producing high-temperature gas and cryogenic gas; High-temperature gas is delivered to condensate recycling device by outlet pipe by incinerating apparatus as the power driving above-mentioned condensate recycling device to start refrigeration, and cryogenic gas is directly emptying by the gas outlet be located on incinerating apparatus.Oil vapor treatment system of the present utility model, by directly utilizing high-temperature gas as the power driving condensate recycling device to start refrigeration, capacity usage ratio is high, and can above-mentioned condensate recycling device in a basic balance be the energy for freezing that condensation recovery oil gas consumes, thus oil vapor treatment cost be low; The cold oil with market value can be obtained by process oil gas, thus can produce economic benefit; Oil decomposition contained in Remaining Oil And Gas can be become inorganic matter by incinerating apparatus, and give off energy make atmosphere temperature rising produce high-temperature gas, therefore, it is possible to the oil decomposition in Remaining Oil And Gas is become free of contamination inorganic matter, to make to be disposed in the cryogenic gas in air oil content at 100mg/m
3below, far below the 25g/m specified in national standard
3current standard discharge capacity, discharge cleannes high, can not to environment.
2. oil vapor treatment system of the present utility model, the carbon adsorption device that can process to obtain to oil gas high-concentration oil vapor and low concentration oil gas was in advance provided with before condensate recycling device, and the high-concentration oil vapor obtained input condensate recycling device is carried out condensation, low concentration oil gas input incinerating apparatus incinerates; After carbon adsorption device is set, the gas concentration being input to condensate recycling device inside can be improved, and reduce the volume being input to the inner oil gas of condensate recycling device simultaneously, thus reduce the refrigerant pressure of condensate recycling device, economize energy, reduce costs, improve cold oil organic efficiency, shorten condensation time; When incinerating apparatus adopts RTO, the low concentration oil gas obtained through carbon adsorption device adsorption treatment can also meet RTO for the low concentration demand will incinerating oil gas.
3. oil vapor treatment system of the present utility model, arrange condensate recycling device to be first communicated with carbon adsorption device by air inlet pipeline and to process Remaining Oil And Gas to be inputted carbon adsorption device, and then incinerated by the low concentration oil gas input incinerating apparatus that process Remaining Oil And Gas produces by the second air delivering pipeline, not only the Remaining Oil And Gas be not fully condensed can be processed again, enter condensate recycling device carry out condensation again to obtain high-concentration oil vapor, improve oil gas recovery rate, the low temperature of Remaining Oil And Gas can also be utilized to carry out cooling process to the oil gas being input to carbon adsorption device inside, thus reduce the refrigerant pressure of condensate recycling device.
4. oil vapor treatment system of the present utility model, also comprise cogeneration unit, high-temperature gas input cogeneration unit incinerating apparatus being incinerated Remaining Oil And Gas generation generates electricity, the driven by power condensate recycling device of generation is made to start refrigeration, high-temperature gas is converted into electric energy and can provides the energy for the condensate recycling device (as compression refrigerating apparatus) relying on electric energy refrigeration, to obtain lower temperature, meet the refrigeration requirement needed for condensate recycling device.
5. oil vapor treatment system of the present utility model, condensate recycling device comprises use electric refrigeration and is divided into the compression refrigerating apparatus of 3 grades, the benefit of 3 grades is divided into by compression refrigerating apparatus to be, use compression refrigerating apparatus that oil gas is directly cooled to target temperature (being generally-90 ~-110 DEG C) by room temperature to be not easy to choose suitable cold-producing medium, after compression refrigerating apparatus being divided into three grades, wider at the range of choices of each cooling stages cold-producing medium, make the technical solution of the utility model be easy to realize, and be conducive to reducing costs.
6. oil vapor treatment system of the present utility model, condensate recycling device also comprises the ammonia that can directly utilize high-temperature gas to start refrigeration and absorbs heat refrigeration apparatus, ammonia absorbs heat refrigeration apparatus and directly utilizes high-temperature gas to start refrigeration, can avoid the energy loss occurred in energy multiple conversions process, refrigerating efficiency is higher; When oil gas is inputted condensate recycling device, first input ammonia absorption heat refrigeration apparatus and carry out condensation, the oil gas that can not be condensed inputs compression refrigerating apparatus again and carries out condensation, thus ammonia can be made full use of absorb that heat refrigeration apparatus refrigerating efficiency is high, the advantage of economize energy, the energy making full use of high-temperature gas freezes.
7. oil vapor treatment system of the present utility model, also comprises and being located on described air inlet pipeline with the forecooler utilizing the low temperature of described Remaining Oil And Gas to lower the temperature to the oil gas before the described incinerating apparatus of input or described carbon adsorption device.Due to the Remaining Oil And Gas temperature very low (generally at-90 ~-110 DEG C) exported from compression refrigerating apparatus inside, directly be entered into incinerating apparatus and carry out incinerating not only waste low temperature resource, and made it heat up for incinerating the heat that also will expend incinerating apparatus accumulation itself, therefore the low temperature making full use of Remaining Oil And Gas goes to reduce the temperature of the oil gas be input to before incinerating apparatus or carbon adsorption device, the refrigerant pressure of condensate recycling device can not only be fallen, the heat energy of incinerating apparatus inside accumulation can also be saved, can significantly economize energy, reduce costs.
8. oil vapor treatment system of the present utility model, adopt RTO(Regenerative Thermal Oxidizer, also known as heat accumulating type heating power incinerator) or RRTO(also known as rotary regenerative heat power incinerator) as incinerating apparatus, above-mentioned two kinds of incinerating apparatus all to oil contained in Remaining Oil And Gas have 99% resolution ratio and up to more than 95% heat recovery rate, free of contamination inorganic matter is become (as carbon dioxide therefore, it is possible to fully incinerated by the oil in Remaining Oil And Gas, water) emptying afterwards, make discharge cleannes high, and fully can accumulate heat output high-temperature gas, power is provided for driving condensate recycling device refrigeration.The utility model creationary by RTO or RRTO for the treatment of the Remaining Oil And Gas after reclaiming through condensate recycling device, achieve high, the high outstanding technique effect of capacity usage ratio of discharge cleannes.
In the utility model: incinerating apparatus refers to can become inorganic matter by the oil decomposition in oil gas, give off energy and make atmosphere temperature rising to generate the device of high-temperature gas.Incineration refers to is decomposed into inorganic matter and the mode given off energy or process by oil gas, includes but not limited to combustion system.High-temperature gas refers to the gas of temperature > 700 DEG C, and cryogenic gas refers to the gas of temperature < 80 DEG C, and high-concentration oil vapor refers to the content > 2000g/m of oil in oil gas
3, low concentration oil gas refers to the content < 25g/m of oil in oil gas
3.
Accompanying drawing explanation
Fig. 1 is the principle schematic of oil gas recycling equipment in prior art.
Fig. 2 is the principle schematic of oil vapor treatment system in embodiment 1.
Fig. 3 is the principle schematic of oil vapor treatment system in embodiment 2.
Fig. 4 is the principle schematic of oil vapor treatment system in embodiment 3.
Fig. 5 is the principle schematic of oil vapor treatment system in embodiment 4.
In figure: 01-condensing type oil gas recovery unit, 02-gas engine group, 03-oil gas, 04-flue gas.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of oil vapor treatment system that the utility model provides is described in further detail.
embodiment 1
The present embodiment provides a kind of oil vapor treatment system, as shown in Figure 2, comprise the one stage of compression refrigerating plant, two-stage compression refrigerating plant, three stage compression refrigerating plant and the RTO that are communicated with successively, RTO has high-temperature gas outlet and cryogenic gas outlet, the high-temperature gas outlet of cogeneration unit and RTO, is communicated with by conductor with compression refrigerating apparatus; Above-mentioned one stage of compression refrigerating plant, two-stage compression refrigerating plant and three stage compression refrigerating plant are equipped with the oil drain out be communicated with cold oil gathering-device.
Oil gas is cooled to-45 ~-55 DEG C in one stage of compression refrigerating plant, two-stage compression refrigerating plant is entered after one stage of compression refrigerating plant is discharged,-70 ~-80 DEG C are cooled in two-stage compression refrigerating plant inside, three stage compression refrigerating plant is entered after two-stage compression refrigerating plant is discharged, and be cooled to-90 ~-110 DEG C in three stage compression refrigerating plant inside, the cold oil that oil gas every one-level compression refrigerating apparatus internal cooling obtains all enters cold oil gathering-device through oil drain out, the Remaining Oil And Gas be not condensed of finally discharging from three stage compression refrigerating plant enters in RTO and carries out incinerating and produce high-temperature gas and cryogenic gas, high-temperature gas enters cogeneration unit through high-temperature gas outlet, cogeneration unit utilizes high-temperature gas to generate electricity, and by conductor, the electricity sent is delivered to one stage of compression refrigerating plant respectively, two-stage compression refrigerating plant and three stage compression refrigerating plant, compression refrigerating apparatus is made to start refrigeration, cryogenic gas is directly discharged from the cryogenic gas outlet of RTO.
Improve as to the one of the present embodiment, also comprise the oil water separator be connected with cold oil gathering-device, be separated into You Heshui further with the cold oil collected by the oily gathering-device that is condensed.
The benefit of 3 grades is divided into by compression refrigerating apparatus to be, use compression refrigerating apparatus that oil gas is directly cooled to-90 ~-110 DEG C by room temperature to be not easy to choose suitable cold-producing medium, after compression refrigerating apparatus being divided into three grades, wider at the range of choices of each cooling stages cold-producing medium, be easy to the technical scheme realized in the present embodiment, and be conducive to reducing costs.In the present embodiment, one stage of compression refrigerating plant adopts R404A as cold-producing medium, and two-stage compression refrigerating plant adopts R14 as cold-producing medium, and three stage compression refrigerating plant adopts R23 as cold-producing medium.
The RTO that the present embodiment selects peaceful new environmental protection science and technology (Shanghai) Co., Ltd. to produce is as incinerating apparatus, the thermal efficiency >=95% of this incinerating apparatus, at least 95% of oil mass contained in Remaining Oil And Gas can be decomposed into inorganic matter, and give off energy and make atmosphere temperature rising, thus produce high-temperature gas.RTO belongs to heat accumulating type incinerator, and the accumulation of heat incinerating oil gas generation can be stored in furnace interior, thus heat loss is few, fully can be transferred to high-temperature gas, and flow to the utilization of cogeneration unit by incinerating the heat produced.The RRTO(rotary heat accumulating type incinerator that those skilled in the art can also select peaceful new environmental protection science and technology (Shanghai) Co., Ltd. to produce) as incinerating apparatus, substantially identical incineration effect can be reached.
The present embodiment selects producer of U.S. TransPacific Energy Inc production cogeneration unit, and this cogeneration unit can make full use of high-temperature gas generating, and efficiency is high.
Adopt the oil vapor treatment system of the present embodiment, process 1000m
3average gas concentration is 550g/m
3oil gas, can obtain the cold oil of 511kg, the rate of recovery is up to 93%, and in directly emptying cryogenic gas, oil content is only 98mg/m
3, far away higher than discharging standards, discharge cleannes are high.
The oil vapor treatment system of the present embodiment, the electric energy that the high-temperature gas that cogeneration unit utilizes RTO to export produces as power, substantially can maintain the normal operation of compression refrigerating apparatus, and namely the 511kg cold oil that above-mentioned recovery obtains becomes benefited.Because the occasion such as harbour, gas station needs oil gas volume to be processed very large, use the oil vapor treatment system of the present embodiment, can be not only that the high air of cleannes is emptying by oil vapor treatment, avoid environmental pollution, a large amount of cold oil can also be reclaimed as being benefited, thus there is huge market potential.
Certainly, when the electricity that cogeneration unit utilizes high-temperature gas to produce is not enough to drive compression refrigerating apparatus that its internal temperature is reduced to-90 ~-110 DEG C, also accessible a small amount of external power supply is to maintain the normal operation of compression refrigerating apparatus.
Improve as to the one of the present embodiment, before oil gas is input to compression refrigerating apparatus inside, also comprise by oil gas successively by the step of surge tank, forecooler, wherein forecooler is located on air inlet pipeline, and the low temperature of Remaining Oil And Gas can be utilized to make to be input to the oil gas cooling of forecooler inside.Be conducive to by surge tank the unexpected change relaxing gas concentration in reality before oil gas is inputted compression refrigerating apparatus, make the gas concentration amplitude of variation being input to compression refrigerating apparatus inside less, the overall operation being conducive to equipment is stablized; Oil gas is inputted forecooler inside and carry out precooling, the low temperature resource of Remaining Oil And Gas can be utilized, reduce the refrigerant pressure of compression refrigerating apparatus.
Because the Remaining Oil And Gas temperature exported from compression refrigerating apparatus inside is low to moderate-90 ~-110 DEG C, directly be entered into RTO and not only waste low temperature resource, and made it heat up for incinerating the heat that also will expend RTO accumulation itself, therefore the low temperature making full use of Remaining Oil And Gas goes auxiliary compression refrigerating plant to reduce the temperature of oil gas, the refrigerant pressure of compression refrigerating apparatus can not only be reduced, the heat energy of RTO inside accumulation can also be saved, can significantly economize energy, reduce costs.
As the another kind of Land use systems to Remaining Oil And Gas low temperature, the heat-transfer pipe passed from compression refrigerating apparatus inside or outside can also be set, heat-transfer pipe receives the Remaining Oil And Gas of will discharge from three stage compression refrigerating plant, the low temperature of Remaining Oil And Gas is utilized to lower the temperature, to alleviate the refrigerant pressure of compression refrigerating apparatus for compression refrigerating apparatus.
Select, as gas concentration < 50g/m as one
3time, compression refrigerating apparatus can be closed, directly oil gas be inputted RTO, the high-temperature gas input cogeneration unit generation then produced by RTO, cryogenic gas is emptying.When gas concentration is too low, start compression refrigerating apparatus condensation and obtain the amount of cold oil seldom, but cost is very high, therefore closes compression refrigerating plant is selected, directly oil gas is inputted the processing mode of RTO, can ensure, when gas concentration is very low, still can produce income (electric energy).In fact, when use this processing mode, those skilled in the art according to reality unrestricted choice, and can need not stick to above-mentioned < 50g/m
3concrete concentration values.
embodiment 2
The present embodiment provides a kind of oil vapor treatment system, as shown in Figure 3, comprise the ammonia be communicated with successively and absorb heat refrigeration apparatus, one stage of compression refrigerating plant, two-stage compression refrigerating plant, three stage compression refrigerating plant and RTO, RTO has high-temperature gas outlet and cryogenic gas outlet, the high-temperature gas outlet of RTO absorbs heat refrigeration apparatus with cogeneration unit and ammonia and is communicated with respectively, and cogeneration unit is communicated with compression refrigerating apparatus by conductor; Above-mentioned ammonia absorption heat refrigeration apparatus, one stage of compression refrigerating plant, two-stage compression refrigerating plant are equipped with three stage compression refrigerating plant the oil drain out be communicated with cold oil gathering-device.
Oil gas absorbs heat refrigeration apparatus inside at ammonia and is cooled to-20 ~-30 DEG C, absorb after heat refrigeration apparatus inside is discharged from ammonia and enter one stage of compression refrigerating plant,-45 ~-55 DEG C are cooled in one stage of compression refrigerating plant, two-stage compression refrigerating plant is entered after one stage of compression refrigerating plant is discharged,-70 ~-80 DEG C are cooled in two-stage compression refrigerating plant inside, three stage compression refrigerating plant is entered after two-stage compression refrigerating plant is discharged, and be cooled to-90 ~-110 DEG C in three stage compression refrigerating plant inside, the cold oil that oil gas obtains at ammonia absorption heat refrigeration apparatus and every one-level compression refrigerating apparatus internal cooling all enters cold oil gathering-device through oil drain out, the Remaining Oil And Gas be not condensed of finally discharging from three stage compression refrigerating plant enters in RTO and carries out incinerating and produce high-temperature gas and cryogenic gas, a high-temperature gas part enters cogeneration unit, another part enters ammonia by high-temperature gas pipeline and absorbs heat refrigeration apparatus, cogeneration unit utilizes high-temperature gas to generate electricity, and by conductor, the electricity sent is delivered to one stage of compression refrigerating plant, two-stage compression refrigerating plant and three stage compression refrigerating plant, compression refrigerating apparatus is made to start refrigeration, ammonia absorbs heat refrigeration apparatus and directly utilizes high-temperature gas to start refrigeration, cryogenic gas is directly discharged from the cryogenic gas outlet of RTO.
Improve as to the one of the present embodiment, also comprise the oil water separator be connected with cold oil gathering-device, be separated into You Heshui further with the cold oil collected by the oily gathering-device that is condensed.
The benefit selecting ammonia to absorb heat refrigeration apparatus is, ammonia absorbs heat refrigeration apparatus and can directly utilize high-temperature gas as power refrigeration, and the energy not having power conversion to cause runs off, and refrigerating efficiency is high, high to the utilization rate of high-temperature gas.In the present embodiment, the ammonia selecting German producer mattes engineering to produce absorbs heat refrigeration apparatus.Those skilled in the art, under the enlightenment of the present embodiment, can also select the ammonia of other manufacturer production to absorb heat refrigeration apparatus or other can directly utilize high-temperature gas to freeze and the high refrigerating plant of refrigerating efficiency.
Through the 1000m of the present embodiment process
3oil gas mean concentration is 550g/m
3oil gas, can obtain the cold oil of 512g, the rate of recovery is 93%, and exporting the oil content of gas is 99mg/m
3, far away higher than discharging standards, discharge cleannes are high.
As the another kind of Land use systems to Remaining Oil And Gas low temperature, can also arrange and absorb from ammonia the heat-transfer pipe passed the inner or outside of heat refrigeration apparatus and compression refrigerating apparatus, heat-transfer pipe receives the Remaining Oil And Gas of will discharge from three stage compression refrigerating plant, utilize the low temperature of Remaining Oil And Gas for ammonia absorption heat refrigeration apparatus and compression refrigerating apparatus cooling, to alleviate the refrigerant pressure that ammonia absorbs heat refrigeration apparatus and compression refrigerating apparatus.
embodiment 3
The present embodiment provides a kind of oil vapor treatment system, as shown in Figure 4, difference is: comprise carbon adsorption device, carbon adsorption device has high-concentration oil vapor outlet and low concentration oil gas vent, the high-concentration oil vapor outlet of carbon adsorption device absorbs heat refrigeration apparatus with ammonia, one stage of compression refrigerating plant, two-stage compression refrigerating plant, three stage compression refrigerating plant is communicated with successively with RTO, the low concentration oil gas vent of carbon adsorption device is directly communicated with RTO, RTO has high-temperature gas outlet and cryogenic gas outlet, the high-temperature gas outlet of RTO absorbs heat refrigeration apparatus with cogeneration unit and ammonia and is communicated with respectively, cogeneration unit is communicated with compression refrigerating apparatus by conductor, above-mentioned ammonia absorption heat refrigeration apparatus, one stage of compression refrigerating plant, two-stage compression refrigerating plant are equipped with three stage compression refrigerating plant the oil drain out be communicated with cold oil gathering-device.
Oil gas is treated to concentration > 2000g/m after entering carbon adsorption device
3high-concentration oil vapor and concentration < 25g/m
3low concentration oil gas, high-concentration oil vapor enters ammonia and absorbs heat refrigeration apparatus and be cooled to-20 ~-30 DEG C in ammonia absorption heat refrigeration apparatus inside after the high-concentration oil vapor outlet discharge of carbon adsorption device, absorb after heat refrigeration apparatus inside is discharged from ammonia and enter one stage of compression refrigerating plant,-45 ~-55 DEG C are cooled in one stage of compression refrigerating plant, two-stage compression refrigerating plant is entered after one stage of compression refrigerating plant is discharged,-70 ~-80 DEG C are cooled in two-stage compression refrigerating plant inside, three stage compression refrigerating plant is entered after two-stage compression refrigerating plant is discharged, and be cooled to-90 ~-110 DEG C in three stage compression refrigerating plant inside, the cold oil that oil gas obtains at ammonia absorption heat refrigeration apparatus and every one-level compression refrigerating apparatus internal cooling all enters cold oil gathering-device through oil drain out, the Remaining Oil And Gas be not condensed of finally discharging from three stage compression refrigerating plant enters in RTO and carries out incinerating and produce high-temperature gas and cryogenic gas, the low concentration oil gas of discharging from the low concentration oil gas vent of carbon adsorption device also enters in RTO and carries out incineration and produce high-temperature gas and cryogenic gas, a high-temperature gas part of finally discharging from the high-temperature gas outlet of RTO enters cogeneration unit, another part enters ammonia by high-temperature gas pipeline and absorbs heat refrigeration apparatus, cogeneration unit utilizes high-temperature gas to generate electricity, and by conductor, the electricity sent is delivered to one stage of compression refrigerating plant, two-stage compression refrigerating plant and three stage compression refrigerating plant, compression refrigerating apparatus is made to start refrigeration, ammonia absorbs heat refrigeration apparatus and directly utilizes high-temperature gas to start refrigeration, cryogenic gas is discharged from the cryogenic gas outlet of RTO.
Improve as to the one of the present embodiment, also comprise the oil water separator be connected with cold oil gathering-device, be separated into You Heshui further with the cold oil collected by the oily gathering-device that is condensed.
Carbon adsorption device choosing in the present embodiment or absorbent charcoal adsorber, those skilled in the art can also select other to have the carbon adsorption device of identical function as required, all can reach substantially identical technique effect.
Through the 1000m of the present embodiment process
3oil gas mean concentration is 550g/m
3oil gas, can obtain the cold oil of 520g, the rate of recovery is 94.5%, and exporting the oil content of gas is 96mg/m
3, far away higher than discharging standards, discharge cleannes are high.
The benefit arranging carbon adsorption device is, the gas concentration being input to condensate recycling device inside can be improved, and reduce the volume being input to the inner oil gas of condensate recycling device simultaneously, thus reduce the refrigerant pressure of condensate recycling device, economize energy, reduce costs, improve condensation efficiency, shorten condensation time; When incinerating apparatus adopts RTO, the low concentration oil gas obtained through carbon adsorption device adsorption treatment can also better meet RTO for the low concentration demand will incinerating oil gas.
Be out of shape as to the one of the present embodiment, only can use compression refrigerating apparatus and not use ammonia to absorb heat refrigeration apparatus, can goal of the invention be reached equally.
embodiment 4
The present embodiment provides a kind of oil vapor treatment system, as shown in Figure 5, comprise carbon adsorption device, carbon adsorption device has high-concentration oil vapor outlet and low concentration oil gas vent, the high-concentration oil vapor outlet of carbon adsorption device absorbs heat refrigeration apparatus with ammonia, one stage of compression refrigerating plant, two-stage compression refrigerating plant is communicated with successively with three stage compression refrigerating plant, the low concentration oil gas vent of carbon adsorption device is communicated with RTO, RTO has high-temperature gas outlet and cryogenic gas outlet, the high-temperature gas outlet of RTO absorbs heat refrigeration apparatus with cogeneration unit and ammonia and is communicated with respectively, cogeneration unit is communicated with compression refrigerating apparatus by conductor, above-mentioned ammonia absorption heat refrigeration apparatus, one stage of compression refrigerating plant, two-stage compression refrigerating plant are equipped with three stage compression refrigerating plant the oil drain out be communicated with cold oil gathering-device.
Oil gas is treated to concentration > 2000g/m after entering carbon adsorption device
3high-concentration oil vapor and concentration < 25g/m
3low concentration oil gas, high-concentration oil vapor enters ammonia and absorbs heat refrigeration apparatus and be cooled to-20 ~-30 DEG C in ammonia absorption heat refrigeration apparatus inside after the high-concentration oil vapor outlet discharge of carbon adsorption device, absorb after heat refrigeration apparatus inside is discharged from ammonia and enter one stage of compression refrigerating plant,-45 ~-55 DEG C are cooled in one stage of compression refrigerating plant, two-stage compression refrigerating plant is entered after one stage of compression refrigerating plant is discharged,-70 ~-80 DEG C are cooled in two-stage compression refrigerating plant inside, three stage compression refrigerating plant is entered after two-stage compression refrigerating plant is discharged, and be cooled to-90 ~-110 DEG C in three stage compression refrigerating plant inside, the cold oil that oil gas obtains at ammonia absorption heat refrigeration apparatus and every one-level compression refrigerating apparatus internal cooling all enters cold oil gathering-device through oil drain out, the Remaining Oil And Gas be not condensed of finally discharging from three stage compression refrigerating plant enters carbon adsorption device, the low concentration oil gas of discharging from the low concentration oil gas vent of carbon adsorption device enters in RTO and carries out incineration and produce high-temperature gas and cryogenic gas, a high-temperature gas part of discharging from the high-temperature gas outlet of RTO enters cogeneration unit, another part enters ammonia by high-temperature gas pipeline and absorbs heat refrigeration apparatus, cogeneration unit utilizes high-temperature gas to generate electricity, and by conductor, the electricity sent is delivered to one stage of compression refrigerating plant, two-stage compression refrigerating plant and three stage compression refrigerating plant, compression refrigerating apparatus is made to start refrigeration, ammonia absorbs heat refrigeration apparatus and directly utilizes high-temperature gas to start refrigeration, cryogenic gas is discharged from the cryogenic gas outlet of RTO.
Improve as to the one of the present embodiment, also comprise the oil water separator be connected with cold oil gathering-device, be separated into You Heshui further with the cold oil collected by the oily gathering-device that is condensed.
Through the 1000m of the present embodiment process
3oil gas mean concentration is 550g/m
3oil gas, can obtain the cold oil of 522g, the rate of recovery is 95%, and exporting the oil content of gas is 94mg/m
3, far away higher than discharging standards, discharge cleannes are high.
Before Remaining Oil And Gas is inputted RTO, the benefit first Remaining Oil And Gas being inputted carbon adsorption device is: not only the oil gas be not fully condensed can be processed again, again circulate and enter ammonia to obtain high-concentration oil vapor and absorb heat refrigeration apparatus and compression refrigerating apparatus and carry out condensation again, improve oil gas recovery rate, the low temperature of Remaining Oil And Gas can also be utilized to carry out cooling process to the oil gas being input to carbon adsorption device inside, thus reduce the refrigerant pressure of condensate recycling device.
For the better Land use systems of Remaining Oil And Gas low temperature resource can be, first Remaining Oil And Gas is inputted forecooler, the low temperature of Remaining Oil And Gas is utilized to lower the temperature to forecooler, be input to reduce the temperature that ammonia absorbs the oil gas of heat refrigeration apparatus or compression refrigerating apparatus, and then Remaining Oil And Gas inputted carbon adsorption device the oil gas being input to carbon adsorption device inside is lowered the temperature.Because a part of low concentration oil gas can be produced after carbon adsorption device adsorption treatment, this part low concentration oil gas finally will deliver into RTO and incinerate, in carbon adsorption device inside, oil gas temperature was down to low temperature, the heat that can consume RTO inside goes this part low concentration oil gas is heated up, and is unfavorable for the accumulation of RTO internal heat.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (11)
1. an oil vapor treatment system, it is characterized in that: comprise the condensate recycling device for carrying out condensation to oil gas, the cold oil gathering-device for collecting cold oil be communicated with the oil drain out of described condensate recycling device, and for condensed Remaining Oil And Gas being carried out incinerating and producing the incinerating apparatus of high-temperature gas and cryogenic gas; Described condensate recycling device is communicated with described incinerating apparatus with outlet pipe respectively by air inlet pipeline, described air inlet pipeline is used for not to be delivered to described incinerating apparatus by the Remaining Oil And Gas of described condensate recycling device condensation, and the high-temperature gas that described outlet pipe is used for described incinerating apparatus to produce is delivered to described condensate recycling device as the power driving described condensate recycling device to start refrigeration; Described incinerating apparatus has the gas outlet for discharging described cryogenic gas.
2. oil vapor treatment system according to claim 1, it is characterized in that: also comprise the carbon adsorption device carrying out the oil gas before entering condensate recycling device to process to produce high-concentration oil vapor and low concentration oil gas, described carbon adsorption device is communicated with described condensate recycling device by the first air delivering pipeline, be communicated with described incinerating apparatus by the second air delivering pipeline, described first air delivering pipeline is used for that described high-concentration oil vapor is delivered to described condensate recycling device and carries out condensation, described second air delivering pipeline is used for described low concentration oil-gas transportation to described incinerating apparatus to incinerate.
3. oil vapor treatment system according to claim 2, is characterized in that: described condensate recycling device for exporting the gas outlet of Remaining Oil And Gas and being communicated with for the air inlet inputting oil gas of carbon adsorption device.
4. the oil vapor treatment system according to Claims 2 or 3, it is characterized in that: also comprise cogeneration unit, the high-temperature gas outlet of described cogeneration unit and described incinerating apparatus generates electricity with the high-temperature gas received from described incinerating apparatus, and described cogeneration unit to be communicated with described condensate recycling device by conductor and to be delivered to described condensate recycling device with the electric energy produced generating electricity and to start and freeze.
5. oil vapor treatment system according to claim 4, is characterized in that: described condensate recycling device comprises compression refrigerating apparatus; Described compression refrigerating apparatus comprises the one stage of compression refrigerating plant, two-stage compression refrigerating plant and the three stage compression refrigerating plant that are communicated with successively, the air inlet of described one stage of compression refrigerating plant is the air inlet of described compression refrigerating apparatus, the gas outlet of described three stage compression refrigerating plant is the gas outlet of described compression refrigerating apparatus, and described one stage of compression refrigerating plant, two-stage compression refrigerating plant and three stage compression refrigerating plant all have the oil drain out be communicated with described cold oil gathering-device.
6. oil vapor treatment system according to claim 5, it is characterized in that: described one stage of compression refrigerating plant adopts R404A as cold-producing medium, described two-stage compression refrigerating plant adopts R14 as cold-producing medium, and described three stage compression refrigerating plant adopts R23 as cold-producing medium.
7. the oil vapor treatment system according to claim 5 or 6, it is characterized in that: described condensate recycling device also comprises ammonia and absorbs heat refrigeration apparatus, described ammonia absorbs heat refrigeration apparatus to be had reception oil gas and described oil gas is inputted the oil gas entrance that condensation is carried out in described ammonia absorption heat refrigeration apparatus inside, be communicated with will be absorbed the oil gas vent of the condensed described oil-gas transportation of heat refrigeration apparatus to described compression refrigerating apparatus internal condensation by described ammonia with the air inlet of described compression refrigerating apparatus, and cold oil condensation to be obtained is delivered to the oil drain out of cold oil gathering-device.
8. oil vapor treatment system according to claim 7, is characterized in that: described ammonia absorbs heat refrigeration apparatus and started by the high-temperature gas outlet of high-temperature gas pipeline and described incinerating apparatus freeze to receive described high-temperature gas.
9. oil vapor treatment system according to claim 8, is characterized in that: described ammonia absorbs the oil gas entrance of heat refrigeration apparatus and described carbon adsorption device high-concentration oil vapor outlet.
10. oil vapor treatment system according to claim 3, is characterized in that: also comprise and being located on described air inlet pipeline with the forecooler utilizing the low temperature of described Remaining Oil And Gas to lower the temperature to the oil gas before the described incinerating apparatus of input or described carbon adsorption device.
11. oil vapor treatment systems according to claim 1, is characterized in that: described incinerating apparatus is RTO or RRTO.
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