CN106885276A - A kind of oil flue waste gas gradient utilizes system - Google Patents

A kind of oil flue waste gas gradient utilizes system Download PDF

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Publication number
CN106885276A
CN106885276A CN201710107724.XA CN201710107724A CN106885276A CN 106885276 A CN106885276 A CN 106885276A CN 201710107724 A CN201710107724 A CN 201710107724A CN 106885276 A CN106885276 A CN 106885276A
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CN
China
Prior art keywords
oil
waste gas
smoke
flue waste
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710107724.XA
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Chinese (zh)
Inventor
都基峻
谭玉玲
张凡
龙红艳
王红梅
束韫
曹晴
张艳平
王相凤
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Chinese Research Academy of Environmental Sciences
Original Assignee
Chinese Research Academy of Environmental Sciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chinese Research Academy of Environmental Sciences filed Critical Chinese Research Academy of Environmental Sciences
Priority to CN201710107724.XA priority Critical patent/CN106885276A/en
Publication of CN106885276A publication Critical patent/CN106885276A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes

Abstract

System is utilized the invention provides a kind of oil flue waste gas gradient, including cooking fume-collecting equipment and oil smoke transfer pipeline, the smoke inlet of oil smoke transfer pipeline is connected with the outlet flue of cooking fume-collecting equipment, outlet flue is connected with the air intake of boiler, oil flue waste gas is delivered in boiler as combustion-supporting gas recycling, reaches the purpose of oil flue waste gas energy-saving and emission-reduction.Volatile organic matter in oil flue waste gas belongs to polluter, it is introduced into hearth combustion, not only there is combustion-supporting effect, simultaneously using the pollution of its reproducibility reduction nitrogen oxides, the discharge capacity of volatile organic matter and nitrogen oxides can effectively be reduced, and the consumption of the existing air as combustion-supporting gas is reduced, reach the dual purpose of energy-saving and emission-reduction.The increased gas mixing tank of the present invention and compensated with air pipeline, it is ensured that the pressure stability of boiler combustion system.

Description

A kind of oil flue waste gas gradient utilizes system
Technical field
System is utilized the present invention relates to atmosphere pollution process for comprehensively treating field, more particularly to a kind of oil flue waste gas gradient.
Background technology
The various chemical substances contained in oil flue waste gas, such as aldehyde, ketone, hydrocarbon, aliphatic acid volatile organic matter and tiny oil Fog particles, wherein many volatile organic matters are acted on " carcinogenic, teratogenesis and mutagenesis ", while being photochemically reactive decision Property precursor, is also the important sources of the Secondary Organic particle in PM2.5, and important shadow is all produced to health and surrounding air Ring.In recent years, country paid attention to and increased the management and control of volatile organic matter, and volatile organic matter implements overall control into certainty Trend.Therefore, the pollution of control oil flue waste gas is significant.
Oil flue waste gas cooking fume control equipment in the country's mainly includes that mechanical oil purification equipment, filtering type fume purifying set at present Standby, wet cooking fume purifying equipment, equipment for purifying oil-fume etc..All of the above mode, except minority make use of chemical method Outward, the method that physics is belonged to greatly, they are mainly solid state class material and the operative liquid class larger to particle size in oil smoke Material has certain separation, absorption and deposition, and they are trapped in inside these purifiers, and these sooty substance sheets Body is not broken off, and they can constantly be accumulated in purifier, under causing the efficiency of purifier and the continuous of effect Drop, therefore has to continually clean or change these purifiers.Meanwhile, more seriously, these methods are to oil smoke In those removal effects to air pollution and the great gaseous volatile organic matter (VOCs) of human health damage it is very limited, Major part has still finally been discharged into air because cannot effectively remove.
Gross contamination emission is the product of exhausted air quantity and Pollutant emission concentration.The various atmosphere pollutions of present Discharge standard generally only controls the concentration of emission of pollutant, and as the key factor of control gross contamination emission --- it is useless Tolerance emission reduction does not cause enough attention.Therefore, traditional cooking fume control equipment has no positive effect to exhausted air quantity emission reduction.But it is actual The emission reduction of upper exhausted air quantity plays an important roll for the reduction of gross contamination emission, and exhausted air quantity emission reduction can not only controlled on an equal basis The discharge of pollutant is reduced under technical conditions processed, while the emission reduction of exhausted air quantity also tends to mean the reduction of the air amount of taking, row The reduction of gas heat loss and the raising of efficiency, therefore exhausted air quantity emission reduction often has the double action of energy-conservation and emission reduction simultaneously.
The content of the invention
For the drawbacks described above and problem of prior art, it is an object of the invention to provide a kind of oil flue waste gas gradient using system System, solving existing cooking fume purification handling mode can not effectively remove gaseous volatile organic matter (VOCs), and can not the row of reduction Put the technical problem of the exhausted air quantity into air.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of oil flue waste gas gradient utilizes system, including cooking fume-collecting equipment and oil smoke transfer pipeline, the oil smoke conveying The smoke inlet of pipeline is connected with the outlet flue of the cooking fume-collecting equipment, and outlet flue is connected with the air intake of boiler, by oil smoke Waste gas is delivered in boiler and is reused as combustion-supporting gas, reaches the purpose of oil flue waste gas energy-saving and emission-reduction.
Further, also including gas mixing tank, the gas mixing tank is arranged on the oil smoke of the air inlet side of boiler On transfer pipeline.
Further, also including compensated with air pipeline, the compensated with air pipeline is connected with the gas mixing tank, to oil Make-up air in smoke waste gas, regulation into boiler oil flue waste gas amount reach boiler needed for combustion-supporting gas amount.
Further, the compensated with air pipeline includes compensation pipeline and tiny structure pressure controller, the tiny structure pressure Force controller is connected on the compensation pipeline, is adjusted the tiny structure pressure controller and is in micro-vacuum state.Ensure air Gas mixing tank is flowed to, after mixing with oil flue waste gas, is delivered in boiler furnace as combustion-supporting gas.
Further, the cooking fume-collecting equipment includes exhaust fume collecting hood, and the smoke port of the exhaust fume collecting hood is defeated with the oil smoke The smoke inlet of pipeline is sent to connect;The exhaust fume collecting hood is arranged on the equipment top for producing oil smoke, for collecting oil flue waste gas.
Further, the cooking fume-collecting equipment includes multiple exhaust fume collecting hoods and corresponding multiple fire tube flue, and each leads cigarette The smoke inlet of pipeline is connected with the smoke port of corresponding exhaust fume collecting hood;Outlet flue connects with the smoke inlet of the oil smoke transfer pipeline Connect.
Further, the smoke port of the exhaust fume collecting hood sets screen pack.For removing larger olesome thing.
Further, the oil smoke transfer pipeline includes conveyance conduit and blower fan, the smoke inlet of the conveyance conduit and institute The outlet flue connection of cooking fume-collecting equipment is stated, outlet flue is connected with the air intake of boiler;The blower fan is arranged on the conveying On pipeline.
Further, insulation outer layer is set on the oil smoke transfer pipeline.The heat of oil smoke dissipates in reduction course of conveying Hair, improves the utilization rate of the heat energy in oil smoke.
Oil flue waste gas gradient of the invention is had the advantages that using system:
1st, be delivered to the oil smoke of collection in the burner hearth of boiler by oil smoke transfer pipeline substitute existing air by the present invention As combustion-supporting gas.Volatile organic matter in oil flue waste gas belongs to polluter, hearth combustion is introduced into, not only with combustion-supporting Effect, while using the pollution of its reproducibility reduction nitrogen oxides, can effectively reduce volatile organic matter and nitrogen oxides Discharge capacity.Reach the dual purpose of energy-saving and emission-reduction.
2nd, process conditions can be met without significantly transformation industrial boiler system, using oil flue waste gas as supplement air, The consumption of the existing air as combustion-supporting gas is reduced, cost-effective effect is reached.
3rd, gas mixing tank and tiny structure pressure controller are additionally arranged in system of the invention, it is ensured that boiler combustion system Pressure stability, the pressure state of boiler operatiopn is not changed, it is ensured that flameholding, safety.
4th, system of the invention makes full use of the combustion heat value of the flammable volatile organic matter in oil flue waste gas, and oil smoke Waste gas is higher than the low grade heat energy of surrounding air, saving energy consumption.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is a kind of structure connection diagram of the oil flue waste gas gradient of the invention using system;
Fig. 2 is a kind of structure connection diagram of the oil flue waste gas gradient of the invention using system.
Specific embodiment
Below in conjunction with embodiments of the invention, technical scheme is clearly and completely described, it is clear that Described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the implementation in the present invention Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to The scope of protection of the invention.
In oil flue waste gas containing substantial amounts of high-temperature steam, while oxygen content is slightly less than the oxygen content in air in its waste gas, And also calorific value is still utilized, and substantial amounts of air is needed during Industrial Boiler fuel combustion.Therefore, the present invention is according to oil flue waste gas These characteristics technology is utilized by waste gas gradient, using oil flue waste gas as the combustion-supporting gas of boiler, not only realize that exhausted air quantity subtracts Row, and can effectively cut down oil flue waste gas Volatile organic emissions amount.
With reference to Fig. 1 to Fig. 2, illustrate that a kind of oil flue waste gas gradient of the invention utilizes system, including cooking fume-collecting to set Standby 1 and oil smoke transfer pipeline 2, the smoke inlet of the oil smoke transfer pipeline 2 are connected with the outlet flue of the cooking fume-collecting equipment 1, Outlet flue is connected with the air intake of boiler 5, oil flue waste gas is delivered in boiler 5 as combustion-supporting gas recycling, reaches The purpose of oil flue waste gas energy-saving and emission-reduction.The residence time that oil flue waste gas enters in the burner hearth of boiler 5 is about 4.0s~5.5s, energy Enough ensure fully oxidized decomposition of the oil flue waste gas in burner hearth.
The cooking fume-collecting equipment 1 is used to collect oil flue waste gas, specifically, can use exhaust fume collecting hood 1, the exhaust fume collecting hood 1 Smoke port be connected with the smoke inlet of the oil smoke transfer pipeline 2;The exhaust fume collecting hood 1 is arranged in the equipment for producing oil smoke Side, for collecting oil flue waste gas.
In actual applications, the oil smoke amount that the oil flue waste gas that single exhaust fume collecting hood is collected is collected is far from being enough, therefore, one In kind of implementation method, as shown in Fig. 2 cooking fume-collecting equipment 1 includes multiple exhaust fume collecting hoods 11 and corresponding multiple fire tube flues 12, often The smoke inlet of individual fire tube flue 12 is connected with the smoke port of corresponding exhaust fume collecting hood 11;Outlet flue with the oil smoke transfer pipeline 2 smoke inlet connection.The outlet flue of multiple fire tube flues 12 can use multiplex roles pipeline with the smoke inlet of oil smoke transfer pipeline 2 13 connections.
Bulky grain thing can be contained in oil flue waste gas, the bulky grain thing is easily deposited on delivery pipe in follow-up course of conveying In road, the blocking of conveyance conduit is caused, therefore, in a preferred embodiment, at the exhaust fume collecting hood 1 (or exhaust fume collecting hood 11) Smoke port set screen pack (not shown).For the larger particles gone in fume eliminating, it is to avoid these bulky grain things are detained The problem of line clogging is caused in conveyance conduit.
The oil smoke transfer pipeline 2 include conveyance conduit 21 and blower fan 22, the smoke inlet of the conveyance conduit 21 with it is described Outlet flue (the smoke port of exhaust fume collecting hood 1 or the outlet flue of the fire tube flue 12) connection of cooking fume-collecting equipment 1, outlet flue and pot The air intake connection of stove 5;The blower fan 22 is arranged on the conveyance conduit 21.The setting number of the blower fan 22 is according to defeated Sending the length of pipeline 21 can set multiple, to ensure the conveying of oil flue waste gas, e.g., 2.The blower fan 22 specifically uses air inducing Machine.
The temperature of the oil smoke collected by cooking fume-collecting equipment 1 is generally 100~120 DEG C, it is contemplated that using there is uniform temperature Oil smoke there is energy-saving effect as combustion-supporting gas, therefore, Insulation is taken to oil smoke transfer pipeline.That is, it is defeated in the oil smoke Send and set on the conveyance conduit 21 of pipeline 2 insulation outer layer.Insulating mold coating can be coated, or adds heat preserving and insulating material Layer.
In the present invention, during oil flue waste gas replacement air is delivered into burner hearth as combustion-supporting gas, it is necessary to assure The pressure stability of the oil flue waste gas of conveying, to ensure the pressure stability of the combustion system of boiler.Therefore, currently preferred implementation In mode, gas mixing tank 3 is additionally arranged, the gas mixing tank 3 is arranged on the oil smoke transfer pipeline 2 of the air inlet side of boiler 5 Conveyance conduit 21 on.Before oil flue waste gas is delivered into boiler furnace, it is allowed to enter row buffering in the gas mixing tank 3 and mixes Close, adjust the pressure of oil flue waste gas, it is ensured that do not influence the pressure stability of the combustion system of boiler.
Oil flue waste gas gradient of the invention is using in system, it is considered in actual motion, and oil flue waste gas amount is less than boiler institute , it is necessary to compensate a certain amount of air to ensure to be delivered to the combustion-supporting gas amount of boiler furnace in the case of the combustion-supporting gas amount for needing. A kind of currently preferred implementation method is to be additionally arranged compensated with air pipeline 4, and the compensated with air pipeline 4 is mixed with the gas Tank 3 is closed to connect, to make-up air in oil flue waste gas, regulation reach boiler into the oil flue waste gas amount of boiler needed for combustion-supporting gas Amount.
A kind of compensated with air pipeline 4 of specific embodiment of the invention, including compensation pipeline 41 and tiny structure pressure control Device processed 42, the tiny structure pressure controller 42 is connected on the compensation pipeline 41, adjusts the tiny structure pressure controller 42 are in micro-vacuum state.Ensure air flow gas mixing tank 3, after mixing with oil flue waste gas, be delivered in the burner hearth of boiler 5 and make It is combustion-supporting gas.Tiny structure pressure controller 42 uses existing commercially available prod, e.g., Tianjin Ding Tuo observation and control technologies Co., Ltd Model DTP10 tiny structure pressure controller.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (9)

1. a kind of oil flue waste gas gradient utilizes system, it is characterised in that described including cooking fume-collecting equipment and oil smoke transfer pipeline The smoke inlet of oil smoke transfer pipeline is connected with the outlet flue of the cooking fume-collecting equipment, and outlet flue connects with the air intake of boiler Connect, oil flue waste gas is delivered in boiler as combustion-supporting gas recycling, reach the purpose of oil flue waste gas energy-saving and emission-reduction.
2. a kind of oil flue waste gas gradient according to claim 1 utilizes system, it is characterised in that also including gas mixing Tank, the gas mixing tank is arranged on the oil smoke transfer pipeline of the air inlet side of boiler.
3. a kind of oil flue waste gas gradient according to claim 2 utilizes system, it is characterised in that also including compensated with air pipe Road, the compensated with air pipeline is connected with the gas mixing tank, and to make-up air in oil flue waste gas, regulation enters the oil of boiler Smoke waste gas amount reach boiler needed for combustion-supporting gas amount.
4. a kind of oil flue waste gas gradient according to claim 3 utilizes system, it is characterised in that the compensated with air pipeline Including compensation pipeline and tiny structure pressure controller, the tiny structure pressure controller is connected on the compensation pipeline, regulation The tiny structure pressure controller is in micro-vacuum state.
5. a kind of oil flue waste gas gradient according to any one of claim 1 to 4 utilizes system, it is characterised in that described Cooking fume-collecting equipment includes exhaust fume collecting hood, and the smoke port of the exhaust fume collecting hood is connected with the smoke inlet of the oil smoke transfer pipeline;Institute State exhaust fume collecting hood and be arranged on the equipment top for producing oil smoke, for collecting oil flue waste gas.
6. a kind of oil flue waste gas gradient according to claim 5 utilizes system, it is characterised in that the cooking fume-collecting equipment Including multiple exhaust fume collecting hoods and corresponding multiple fire tube flues, the smoke end of the smoke inlet of each fire tube flue and corresponding exhaust fume collecting hood Mouth connection;Smoke inlet of the outlet flue with the oil smoke transfer pipeline is connected.
7. a kind of oil flue waste gas gradient according to claim 5 utilizes system, it is characterised in that the smoke of the exhaust fume collecting hood Port sets screen pack.
8. a kind of oil flue waste gas gradient according to claim 1,2,3,4,6 or 7 utilizes system, it is characterised in that institute Oil smoke transfer pipeline is stated including conveyance conduit and blower fan, the smoke of the smoke inlet of the conveyance conduit and the cooking fume-collecting equipment Mouth connection, outlet flue is connected with the air intake of boiler;The blower fan is arranged on the conveyance conduit.
9. a kind of oil flue waste gas gradient according to claim 8 utilizes system, it is characterised in that the oil smoke transfer pipeline It is upper that insulation outer layer is set.
CN201710107724.XA 2017-02-27 2017-02-27 A kind of oil flue waste gas gradient utilizes system Pending CN106885276A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882907A (en) * 2019-04-12 2019-06-14 中国环境科学研究院 A kind of flue gas dynamic equilibrium processing unit
CN111720841A (en) * 2020-06-24 2020-09-29 北京市环境保护科学研究院 High-efficiency purification of VOC (volatile organic compounds) generated in roast duck manufacturing processSSystem and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300687A1 (en) * 1973-01-08 1974-07-25 Wulf Maschf & Apparatebau Odour removal from exhaust vapours - by heating with a burner to above 850 deg Cin an annular column
CN1037086A (en) * 1988-04-19 1989-11-15 安东·施坦爱克尔机械厂有限公司 By in burner, adding the method and apparatus of odoriferous substance in the heat extraction gas
CN101949544A (en) * 2010-09-02 2011-01-19 罗勇 Method for recycling gas stove vent gas
CN102410719A (en) * 2011-09-30 2012-04-11 杭州萧山云水针织网布有限公司 Energy-saving and environment-friendly oil fume carbon emission reduction device
CN103968404A (en) * 2014-05-09 2014-08-06 铁道第三勘察设计院集团有限公司 Combined mixed flue gas waste heat recycling device
CN203923676U (en) * 2014-05-22 2014-11-05 长兴国圆印染有限公司 A kind of energy-saving printing and dyeing emission-control equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300687A1 (en) * 1973-01-08 1974-07-25 Wulf Maschf & Apparatebau Odour removal from exhaust vapours - by heating with a burner to above 850 deg Cin an annular column
CN1037086A (en) * 1988-04-19 1989-11-15 安东·施坦爱克尔机械厂有限公司 By in burner, adding the method and apparatus of odoriferous substance in the heat extraction gas
CN101949544A (en) * 2010-09-02 2011-01-19 罗勇 Method for recycling gas stove vent gas
CN102410719A (en) * 2011-09-30 2012-04-11 杭州萧山云水针织网布有限公司 Energy-saving and environment-friendly oil fume carbon emission reduction device
CN103968404A (en) * 2014-05-09 2014-08-06 铁道第三勘察设计院集团有限公司 Combined mixed flue gas waste heat recycling device
CN203923676U (en) * 2014-05-22 2014-11-05 长兴国圆印染有限公司 A kind of energy-saving printing and dyeing emission-control equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882907A (en) * 2019-04-12 2019-06-14 中国环境科学研究院 A kind of flue gas dynamic equilibrium processing unit
CN111720841A (en) * 2020-06-24 2020-09-29 北京市环境保护科学研究院 High-efficiency purification of VOC (volatile organic compounds) generated in roast duck manufacturing processSSystem and method

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Application publication date: 20170623

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