CN110360586A - A kind of mechanical compression type heat pump system taking off white improvement for flue gas - Google Patents

A kind of mechanical compression type heat pump system taking off white improvement for flue gas Download PDF

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Publication number
CN110360586A
CN110360586A CN201910740114.2A CN201910740114A CN110360586A CN 110360586 A CN110360586 A CN 110360586A CN 201910740114 A CN201910740114 A CN 201910740114A CN 110360586 A CN110360586 A CN 110360586A
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China
Prior art keywords
flue gas
heat
organic media
reheater
secondary condenser
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CN201910740114.2A
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Chinese (zh)
Inventor
张于峰
赵茂中
王晓燕
田野
姚胜
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Tianjin University
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Tianjin University
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Priority to CN201910740114.2A priority Critical patent/CN110360586A/en
Publication of CN110360586A publication Critical patent/CN110360586A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chimneys And Flues (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a kind of mechanical compression type heat pump systems that white improvement is taken off for flue gas, including flue gas side apparatus and organic media side apparatus；Flue gas side apparatus includes fume dust remover, desulfurizer, heat collector, reheater, air-introduced machine and chimney；Organic media side apparatus includes compressor, secondary condenser and throttling set, compressor is connected between the outlet of heat collector tube side and reheater tube side import, the outlet of reheater tube side is connected with secondary condenser tube side import, throttling set is connected between the import of heat collector tube side and the outlet of secondary condenser tube side, secondary condenser shell side is connect with boiler feedwater pipeline, and organic media is arranged in refrigerating circulation.The present invention can not only reduce the water capacity of flue gas, eliminate white plume, and satisfaction takes off white demand, additionally it is possible to using the steam-laden latent heat of organic media recovered flue gas institute, promote energy matter by heat pump system, the condensation heat of organic media is finally released to flue gas to be discharged.

Description

A kind of mechanical compression type heat pump system taking off white improvement for flue gas
Technical field
It further include using energy source, environment protection field the present invention relates to chemical plant and the fume treatment field of steam power plant, more specifically Say, be to be related to a kind of mechanical compression type heat pump system that white improvement is taken off for flue gas.
Background technique
Wet desulphurization has been widely used in the cigarette of steam power plant, chemical plant and each class factory due to its high-efficient feature Gas disposal process is close to even up to saturation state since the technique will increase humidity of flue gas, therefore, in big compression ring Under conditions of border temperature is relatively low, the condensation phenomenon of vapor will be generated in wet flue gas discharge process, forms white plume.Ring Border temperature is lower, and relative humidity is bigger, and white plume is then longer.
It is to take direct-fired mode to the flue gas after desulfurization that flue gas, which takes off white Technology Ways mostly, at present, only from vision The white plume of upper elimination, without inherently reducing humidity of flue gas, thus bring adverse effect includes:
1. smoke evacuation is than great, ability of extricating oneself is weak, increases air-introduced machine energy consumption；
2. smoke evacuation is not easy to spread in an atmosphere；
3. corrosion and clogging inside other metal equipments such as heat exchanger, air-introduced machine cause ageing equipment and heat transfer The problems such as reduced performance；
4. the etching problem inside chimney.
5. flue gas desulfurization technique requires to be added external water source for spraying, this part water is finally discharged into greatly in a gaseous form In gas.The water capacity of smoke evacuation is bigger, on the one hand means that sweetening process water consumption is bigger, increases enterprise water use expense expenditure；Separately On the one hand mean that the vapor discharged into environment is more, this not only with global warming is closely bound up and a kind of energy Source waste.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of machinery that white improvement is taken off for flue gas Compression heat pump system can not only reduce the water capacity of flue gas, eliminate white plume, and satisfaction takes off white demand, additionally it is possible to utilize The steam-laden latent heat of organic media recovered flue gas institute promotes energy matter by heat pump system, finally by the condensation heat of organic media It is released to flue gas to be discharged, further consolidates the de- white effect of flue gas.
The purpose of the present invention is what is be achieved through the following technical solutions.
The present invention takes off the mechanical compression type heat pump system of white improvement, including flue gas side apparatus and organic media side for flue gas Equipment；
The flue gas side apparatus includes passing through the sequentially connected fume dust remover of flue, desulfurizer, heat collector, reheating Device, air-introduced machine and chimney；
The organic media side apparatus includes compressor, secondary condenser and throttling set, and the compressor passes through refrigeration Circulation line is connected between the outlet of heat collector tube side and reheater tube side import, the reheater tube side outlet and B-grade condensation The import of device tube side by refrigerating circulation be connected, the throttling set by refrigerating circulation be connected to heat collector tube side into Between mouth and the outlet of secondary condenser tube side, the secondary condenser shell side is connect with boiler feedwater pipeline, the refrigeration cycle The organic media for phase-change heat-exchange is provided in pipeline.
The heat collector is the heat exchanger that organic media evaporation absorbs flue gas heat；The reheater is organic media condensation Heat is discharged to the heat exchanger of flue gas；The secondary condenser is organic media condensation release heat for preboiler water supply Heat exchanger.
The shell side of the heat collector is connect with flue, and the shell side of the reheater is connect with flue.
The fume dust remover is used to separate and collect dust contained in the flue gas after burning, desulfurizer slurries Spray mode carries out wet desulphurization processing to flue gas after dedusting, 50-55 DEG C of saturation after sweetening process is completed out of desulfurizer Wet flue gas carries out reducing temperature and humidity process by heat collector, while a large amount of vapor contained in flue gas coagulate, to reach cigarette The purpose of gas dehumidifying；45-50 DEG C of saturation wet flue gas after completing reducing temperature and humidity process enters in reheater, absorbs organic media Condensation heat, realize etc. wet temperature-rise period；75-80 DEG C of flue gas of reheated process processing is discharged through air-introduced machine from chimney.
The carrier that the organic media is transmitted as smoke heat energy first passes around heat collector and absorbs institute's containing water vapor in flue gas A large amount of latent heat, evaporation formation temperature is 40-45 DEG C of low-pressure superheated steam；The organic media of heat collector outlet has centainly mistake 2-3 DEG C of temperature, completion mechanical type pressing compression process in compressor is entered back into, 90-95 DEG C of high-temperature high-pressure overheat steam is formed；High pressure The organic media of superheated steam state enters in reheater in next step, carries out condensation exothermic process, flue gas is made to heat up, the process is complete Cheng Hou, organic media are condensed into 70-75 DEG C of gas-fluid two-phase mixture；The organic media of reheater outlet is due to incomplete liquid Change, still has emission capacity, boiler feedwater will be preheated in secondary condenser；Organic Jie of secondary condenser outlet Matter is in supercooled liquid, and temperature is 64-69 DEG C, is adjusted by throttling set, is cooled to 37-42 DEG C, having after throttling Machine medium is in gas-liquid two-phase, carries out subsequent cycle into heat collector.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
(1) when after desulfurization and dedusting without any processing, wet flue gas is discharged close under saturation state, and be lower than flue gas The surrounding air of temperature contacts mixing, some inevitable water vapour coagulates during this, fog-like under naked eyes to swim in In the air, i.e., so-called white plume.
It is white to take off flue gas, it is necessary to make smoke behavior point as far as possible far from saturation state, when flue gas and atmosphere being avoided to contact Mixed process generates Water vapor condensation.
It is the direct temperature-rising method of flue gas mentioned above that most widely used at present flue gas, which takes off whitening method, and flue-gas temperature increases Afterwards, smoke evacuation is not passed through saturation state curve after being mixed with atmosphere, therefore this method can remove smoke the white plume of discharge, But there is no substantial variations for humidity of flue gas, and when Outdoor Air Parameters change, white plume still has in the presence of possible.
The flue gas handled using present system, after reheater is handled, humidity and temperature are all declined, no It addresses only flue gas and takes off white vision level problem, deeper is to have humidity of flue gas to be decreased obviously, this part water In the larger place of flue gas emission, the water consumption of desulfation dust-extraction device can obviously reduce, if investment construction is subject to early period It rationally designs, a considerable cost of equipment expenditure can be saved.
Flue gas after cool-down dehumidification further heats up in reheater, then can further away from saturation state, even if When Outdoor Air Parameters change, still the formation probability of white plume can be maintained at low level.
(2) for the dehumidifying of flue gas, at present using it is relatively broad wet temperature-raising method or the heating such as be except wet process, institute of the present invention Application method is cool-down dehumidification method, had not only reduced the water capacity of flue gas, but also can take out flue gas heat, and had given for preboiler Water reduces coal consumption while reducing the waste heat discharged into atmospheric environment.
(3) since humidity of flue gas declines, after desulfurization and dedusting such as: corrosion and blocking inside air-introduced machine, chimney device Problem will be effectively improved.
(4) thermal medium that takes in traditional flue gas heat-exchange unit is usually liquid water, is limited by the hot physical property matter of water, is taking heat Measure it is equal under conditions of, phase transformation heat taking method of the present invention takes full advantage of the big feature of organic media latent heat, thus The heat exchange area for largely reducing heat exchanger, also saves the occupied space of heat exchanger while reducing investment outlay.
(5) it is used in more gas-water heat exchanger in steam power plant at present, the solder joint due to caused by internal corrosion The solid particle that leaking will lead in flue gas is mixed with water, blocks heat exchange runner reduced cross-sectional even, used in the present invention Organic media will not corrode heat exchanger, and exist in a gaseous form in heat exchanger, also can be immediately with flue gas even if leaking Discharge.
(6) heat pump system of organic media side is driven by a compressor, and brought income has three: flue gas is utilized Waste heat carries out flue gas and takes off white improvement, reduces coal consumption.
(7) heat carrier that takes of the invention is organic media, takes the usage mode of heat versatile and flexible
Detailed description of the invention
Fig. 1 is the mechanical compression type heat pump system schematic diagram that the present invention takes off white improvement for flue gas.
Appended drawing reference: 1 fume dust remover；2 desulfurizers；3 heat collectors；4 reheaters；5 air-introduced machines；6 chimneys；7 compressions Machine；8 secondary condensers；9 throttling sets；10 boiler feedwater pipelines；
A. flue gas after dedusting；B. 50-55 DEG C of saturation wet flue gas of temperature after desulfurization；C. 45-50 DEG C of saturation after reducing temperature and humidity Wet flue gas；D. 75-80 DEG C of flue gas of reheated process processing.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As shown in Figure 1, the present invention takes off the mechanical compression type heat pump system of white improvement for flue gas, be related to working media by Thermal evaporation and condensation two phase transition process of heat release, mainly include flue gas side apparatus and organic media side apparatus.
The flue gas side apparatus include by the sequentially connected fume dust remover 1 of flue, desulfurizer 2, heat collector 3, Reheater 4, air-introduced machine 5 and chimney 6.The heat collector 3 is the heat exchanger that organic media evaporation absorbs flue gas heat；The reheating Device 4 is heat exchanger of the organic media condensation release heat to flue gas；The shell side of the heat collector 3 is connect with flue, the reheating The shell side of device 4 is connect with flue.
The 1 abbreviation deduster of fume dust remover, for separating and collecting dust contained in the flue gas after burning；It is de- After sulphur device 2 is located at fume dust remover 1, wet desulphurization processing is carried out to flue gas after dedusting with slurries spray mode；From desulfurization 50-55 DEG C of saturation wet flue gas after sweetening process is completed in device 2, carries out reducing temperature and humidity process, while flue gas by heat collector 3 Contained in a large amount of vapor coagulate, to achieve the purpose that flue gas dehumidifies；45-50 DEG C after completing reducing temperature and humidity process is full It is entered in reheater 4 with wet flue gas, absorbs the condensation heat of organic media, the wet temperature-rise period (75-80 DEG C) such as realize, further Flue gas is promoted to extricate oneself ability and de- white effect；75-80 DEG C of flue gas of reheated process processing is discharged through air-introduced machine 5 from chimney 6.
Air-introduced machine 5 provides energy for the conveying of whole system flue gas, is usually placed in 6 front end of chimney；Flue plays transmission cigarette The effect of gas；Finally, it is condensed and is discharged into atmosphere with the flue gas after reheating two-step pretreatment by chimney 6.
The organic media side apparatus includes compressor 7, secondary condenser 8 and throttling set 9, and the compressor 7 passes through Refrigerating circulation is connected between the outlet of 3 tube side of heat collector and 4 tube side import of reheater, 4 tube side of reheater outlet and 8 tube side import of secondary condenser is connected by refrigerating circulation, and the throttling set 9 is connected to by refrigerating circulation to be taken Between hot 3 tube side import of device and the outlet of 8 tube side of secondary condenser, 8 shell side of secondary condenser and boiler feedwater pipeline 10 connect It connects, the organic media for phase-change heat-exchange is provided in the refrigerating circulation.The secondary condenser 8 is that organic media is cold Solidifying release heat is used for the heat exchanger of preboiler water supply.
The carrier that the organic media is transmitted as smoke heat energy first passes around heat collector 3 and absorbs the aqueous steaming of institute in flue gas A large amount of latent heat of gas, the low-pressure superheated steam that evaporation formation temperature is 40-45 DEG C；The organic media that heat collector 3 exports has one Determine 2-3 DEG C of the degree of superheat, enter back into completion mechanical type pressing compression process in compressor 7, forms 90-95 DEG C of high temperature and pressure and overheat steaming Vapour；The organic media of high pressure superheated steam state enters in reheater 4 in next step, carries out condensation exothermic process, flue gas is made to heat up, After the completion of the process, organic media is condensed into 70-75 DEG C of gas-fluid two-phase mixture；Reheater 4 export organic media due to It does not liquefy completely, still has emission capacity, boiler feedwater will be preheated in secondary condenser 8；Secondary condenser 8 The organic media of outlet is in supercooled liquid, and temperature is 64-69 DEG C, is adjusted by throttling set 9, is cooled to 37-42 DEG C, the organic media after throttling is in gas-liquid two-phase, carries out subsequent cycle into heat collector 3.
Embodiment 1:
Fume side: high-temperature flue gas to be processed completes dust removal process in fume dust remover 1 first, is conveyed by flue To desulfurizer 2,50 DEG C of saturation wet flue gas for completing sulfur removal technology are delivered to heat collector 3 and carry out condensation reducing temperature and humidity, the step Saturation wet flue gas temperature after the completion is 45 DEG C, then proceed to be sent into reheater 4 carry out etc. it is wet be warming up to 75 DEG C, increasing extent of temperature Adjusted by the flow and compression ratio of side medium, finally, flue gas is discharged by chimney 6, flue gas in whole process conveying energy by Air-introduced machine 5 provides.
Organic media side: the organic media in heat collector 3 is evaporated to 40 DEG C after absorbing condensation heat of flue gas, and has 2 DEG C of mistakes Temperature carries out mechanical compression increasing temperature and pressure by compressor 7, and the thermal high of crossing that the organic media for completing compression process is 90 DEG C steams Then vapour is delivered in reheater 4 by refrigerating circulation, discharge condensation heat to its temperature after flue gas and be down to 70 DEG C, is in gas Liquid two-phase simultaneously deposits state, further continues to discharge the preheating that condensation heat is used for boiler feedwater, B-grade condensation in secondary condenser 8 The organic media that device 8 exports becomes 64 DEG C of subcooled liquid, further carries out reducing pressure by regulating flow by throttling set 9, cools down simultaneously To 37 DEG C, throttling process vaporizes a part of organic media, therefore the medium of 3 entrance of heat collector in gas-liquid two-phase and is deposited Low pressure be saturated damp steam state, into subsequent cycle.
Embodiment 2:
Fume side: high-temperature flue gas to be processed completes dust removal process in fume dust remover 1 first, is conveyed by flue To desulfurizer 2,52 DEG C of saturation wet flue gas for completing sulfur removal technology are delivered to heat collector 3 and carry out condensation reducing temperature and humidity, the step Saturation wet flue gas temperature after the completion is 48 DEG C, then proceed to be sent into reheater 4 carry out etc. it is wet be warming up to 78 DEG C, increasing extent of temperature Adjusted by the flow and compression ratio of side medium, finally, flue gas is discharged by chimney 6, flue gas in whole process conveying energy by Air-introduced machine 5 provides.
Organic media side: the organic media in heat collector 3 is evaporated to 42.5 DEG C after absorbing condensation heat of flue gas, and has 2.5 DEG C degree of superheat carries out mechanical compression increasing temperature and pressure by compressor 7, and the organic media for completing compression process is 92 DEG C and crosses thermal high Then steam is delivered in reheater 4 by refrigerating circulation, discharge condensation heat to its temperature after flue gas and be down to 73 DEG C, be in Gas-liquid two-phase simultaneously deposits state, further continues to discharge the preheating that condensation heat is used for boiler feedwater in secondary condenser 8, second level is cold The organic media that condenser 8 exports becomes 67 DEG C of subcooled liquid, further carries out reducing pressure by regulating flow by throttling set 9, drops simultaneously For temperature to 39 DEG C, throttling process vaporizes a part of organic media, thus the medium of 3 entrance of heat collector in gas-liquid two-phase simultaneously The low pressure saturation damp steam state deposited, into subsequent cycle.
Embodiment 3:
Fume side: high-temperature flue gas to be processed completes dust removal process in fume dust remover 1 first, is conveyed by flue To desulfurizer 2,55 DEG C of saturation wet flue gas for completing sulfur removal technology are delivered to heat collector 3 and carry out condensation reducing temperature and humidity, the step Saturation wet flue gas temperature after the completion is 50 DEG C, then proceed to be sent into reheater 4 carry out etc. it is wet be warming up to 80 DEG C, increasing extent of temperature Adjusted by the flow and compression ratio of side medium, finally, flue gas is discharged by chimney 6, flue gas in whole process conveying energy by Air-introduced machine 5 provides.
Organic media side: the organic media in heat collector 3 is evaporated to 45 DEG C after absorbing condensation heat of flue gas, and has 3 DEG C of mistakes Temperature carries out mechanical compression increasing temperature and pressure by compressor 7, and the thermal high of crossing that the organic media for completing compression process is 95 DEG C steams Then vapour is delivered in reheater 4 by refrigerating circulation, discharge condensation heat to its temperature after flue gas and be down to 75 DEG C, is in gas Liquid two-phase simultaneously deposits state, further continues to discharge the preheating that condensation heat is used for boiler feedwater, B-grade condensation in secondary condenser 8 The organic media that device 8 exports becomes 69 DEG C of subcooled liquid, further carries out reducing pressure by regulating flow by throttling set 9, cools down simultaneously To 42 DEG C, throttling process vaporizes a part of organic media, therefore the medium of 3 entrance of heat collector in gas-liquid two-phase and is deposited Low pressure be saturated damp steam state, into subsequent cycle.
Although function and the course of work of the invention are described above in conjunction with attached drawing, the invention is not limited to Above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than restrictive, ability The those of ordinary skill in domain under the inspiration of the present invention, is not departing from present inventive concept and scope of the claimed protection situation Under, many forms can also be made, all of these belong to the protection of the present invention.

Claims (5)

1. a kind of mechanical compression type heat pump system for taking off white improvement for flue gas, which is characterized in that including flue gas side apparatus and have Machine medium side apparatus；
The flue gas side apparatus includes passing through the sequentially connected fume dust remover of flue (1), desulfurizer (2), heat collector (3), reheater (4), air-introduced machine (5) and chimney (6)；
The organic media side apparatus includes compressor (7), secondary condenser (8) and throttling set (9), the compressor (7) It is connected between the outlet of heat collector (3) tube side and reheater (4) tube side import by refrigerating circulation, the reheater (4) Tube side outlet is connected with secondary condenser (8) tube side import by refrigerating circulation, and the throttling set (9) is followed by refrigeration Endless tube road is connected between heat collector (3) tube side import and the outlet of secondary condenser (8) tube side, secondary condenser (8) shell Journey is connect with boiler feedwater pipeline (10), and the organic media for phase-change heat-exchange is provided in the refrigerating circulation.
2. the mechanical compression type heat pump system according to claim 1 for taking off white improvement for flue gas, which is characterized in that described Heat collector (3) is the heat exchanger that organic media evaporation absorbs flue gas heat；The reheater (4) is organic media condensation release heat It measures to the heat exchanger of flue gas；The secondary condenser (8) is organic media condensation release heat changing for preboiler water supply Hot device.
3. the mechanical compression type heat pump system according to claim 1 for taking off white improvement for flue gas, which is characterized in that described The shell side of heat collector (3) is connect with flue, and the shell side of the reheater (4) is connect with flue.
4. the mechanical compression type heat pump system according to claim 1 for taking off white improvement for flue gas, which is characterized in that described Fume dust remover (1) is used to separate and collect dust contained in the flue gas after burning, desulfurizer (2) slurries spray side Formula carries out wet desulphurization processing to flue gas after dedusting, from the 50-55 DEG C of wet cigarette of saturation after the interior completion sweetening process of desulfurizer (2) Gas carries out reducing temperature and humidity process by heat collector (3), while a large amount of vapor contained in flue gas coagulate, to reach cigarette The purpose of gas dehumidifying；45-50 DEG C of saturation wet flue gas after completing reducing temperature and humidity process enters in reheater (4), absorbs organic The condensation heat of medium, the wet temperature-rise period such as realization；75-80 DEG C of flue gas of reheated process processing is through air-introduced machine (5) from chimney (6) Discharge.
5. the mechanical compression type heat pump system according to claim 1 for taking off white improvement for flue gas, which is characterized in that described It is steam-laden a large amount of latent to first pass around institute in heat collector (3) absorption flue gas for the carrier that organic media is transmitted as smoke heat energy Heat, the low-pressure superheated steam that evaporation formation temperature is 40-45 DEG C；The organic media of heat collector (3) outlet has certain degree of superheat It 2-3 DEG C, enters back into and completes mechanical type pressing compression process in compressor (7), form 90-95 DEG C of high-temperature high-pressure overheat steam；High pressure The organic media of superheated steam state enters in reheater (4) in next step, carries out condensation exothermic process, flue gas is made to heat up, the mistake After the completion of journey, organic media is condensed into 70-75 DEG C of gas-fluid two-phase mixture；The organic media of reheater (4) outlet is not due to having There is complete liquefaction, still have emission capacity, boiler feedwater will be preheated in secondary condenser (8)；Secondary condenser (8) organic media exported is in supercooled liquid, and temperature is 64-69 DEG C, is adjusted by throttling set (9), decompression is cooled to 37-42 DEG C, the organic media after throttling is in gas-liquid two-phase, carries out subsequent cycle into heat collector (3).
CN201910740114.2A 2019-08-12 2019-08-12 A kind of mechanical compression type heat pump system taking off white improvement for flue gas Pending CN110360586A (en)

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CN116518649A (en) * 2023-07-03 2023-08-01 山东工业职业学院 Waste gas treatment device for chemical production

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CN203571776U (en) * 2013-11-27 2014-04-30 北京大学工学院包头研究院 Flue gas treatment device
CN106287770A (en) * 2016-07-26 2017-01-04 中国科学院理化技术研究所 System and method for recovering moisture and heat in desulfurized flue gas
CN107983077A (en) * 2017-12-02 2018-05-04 北京清新环境技术股份有限公司 A kind of system and method for administering desulfurization fume white plume
CN208244446U (en) * 2018-08-10 2018-12-18 西安航天源动力工程有限公司 The system that a kind of flue gas takes off bletilla energy conservation deep removal pollutant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116518649A (en) * 2023-07-03 2023-08-01 山东工业职业学院 Waste gas treatment device for chemical production
CN116518649B (en) * 2023-07-03 2023-08-29 山东工业职业学院 Waste gas treatment device for chemical production

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