CN202942807U - Water-washing condensing-type smoke triple-recovery device - Google Patents
Water-washing condensing-type smoke triple-recovery device Download PDFInfo
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- CN202942807U CN202942807U CN2012207165054U CN201220716505U CN202942807U CN 202942807 U CN202942807 U CN 202942807U CN 2012207165054 U CN2012207165054 U CN 2012207165054U CN 201220716505 U CN201220716505 U CN 201220716505U CN 202942807 U CN202942807 U CN 202942807U
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- 238000005406 washing Methods 0.000 title claims abstract description 77
- 238000011084 recovery Methods 0.000 title claims abstract description 38
- 239000000779 smoke Substances 0.000 title abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 228
- 239000007921 spray Substances 0.000 claims abstract description 118
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 87
- 239000003546 flue gas Substances 0.000 claims description 85
- 230000001112 coagulating effect Effects 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 abstract description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000012546 transfer Methods 0.000 description 9
- 239000005864 Sulphur Substances 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000003500 flue dust Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910017464 nitrogen compound Inorganic materials 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ODUCDPQEXGNKDN-UHFFFAOYSA-N Nitrogen oxide(NO) Natural products O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- -1 sulphur nitride Chemical class 0.000 description 1
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a water-washing condensing-type smoke triple-recovery device, and relates to a triple-recovery device for heat, water and sulphur-nitrogen of smoke, aiming at solving the problems in the existing smoke recovery devices of a single recovery function and a single substance, and low recovery rate and low utilization rate of heat energy and water in the smoke. According to the water-washing condensing-type smoke triple-recovery device, a first gas inlet tube is arranged on the sidewall of the lower end of a water-washing spray tower; the upper end of the water-washing spray tower and one end of a first gas outlet tube are arranged in a communication manner; a gas-water condensing preheater is fixedly connected on the first gas outlet tube, and the first gas outlet tube and the gas-water condensing preheater are arranged in the communication manner; the water outlet end of a desulfurization water tube and the sidewall of the lower end of the water-washing spray tower are arranged in the communication manner; the water outlet end of a first spray water tube penetrates through a first water-water heat exchanger, and the water outlet end and a first spray head are arranged in the communication manner; and a heat-carrying circulating water tube is used for sequentially connecting the gas-water condensing preheater with the first water-water heat exchanger from top to bottom. The water-washing condensing-type smoke triple-recovery device disclosed by the utility model is used for recovering the heat energy, the water and the sulphur-nitrogen compounds in the smoke.
Description
Technical field
The utility model relates to a kind of heat, moisture of flue gas, three retracting devices of sulfur-nitrogen compound.
Background technology
China's energy resource structure is take fire coal as main, and coal-fired flue-gas causes a large amount of energy wastes and serious environmental pollution, and China approximately has 550,000 coal-burned industrial boilers and stove at present, and coal consumption accounts for 1/3 of the whole nation year consumption coal total amount.The problems such as high fume temperature and smoke dust discharge concentration height cause the lower and undercapacity of boiler operating efficiency.In general, China's chain-grate boiler design thermal efficiency is in 72%～80% left and right, but in actual motion, evenly heat efficient only has an appointment 60%～65%, and how the part boiler operatiopn thermal efficiency solves the problem of the thermal efficiency even lower than 50%, has directly affected energy-saving and emission-reduction.Have research to find, boiler thermal output improves 1%, can economize on coal 0.5%.The heat loss due to exhaust gas of industrial boilers in China accounts for sends into 8%～20% of boiler heat.Therefore flue gas heat recovery is one of important channel of improving boiler efficiency, saving fire coal.
Current, the Industrial Boiler dedusting mostly is Water Membrane Dedusting System, and flue gas afterbody heat energy can't be recycled, and has both wasted the water source, has increased operating cost, easily causes again the afterbody corrosion, also causes the boiler tail heat-energy losses.In boiler smoke, harmful components mainly contain sulfur dioxide (SO
2), carbon monoxide (CO), hydrocarbon (HC), the floating dust that nitrogen oxide (NO) and particle diameter form less than carbon granule and the soot particle of 10 μ m.Enter the flue dust of atmosphere, not only contaminated environment, and serious harm human health.Flue gas desulfurization is to control at present SO in boiler waste gas
2The most effective approach, the maturation process of its industrial applications have tens kinds.At present wet processing still accounts for the empery status.In flue gas desulphurization system, desulfurizing tower is core apparatus, and the development trend of recent domestic shows, spray column becomes the main flow tower on wet flue gas desulfurization absorption tower gradually.
In the boiler combustion equipment of routine, for preventing flue gas to the corrosion of flue and auxiliary device, require the exhaust gas temperature must be higher than a certain numerical value, to guarantee not condensation of steam in flue gas, the latent heat taken away of steam will cause very large heat loss like this.And want vapour latent heat in recovered flue gas, and just must the dedusting of first desulfurization denitrification, just can avoid the corrosion of sulfide heat exchanger.The process of recycle-water steam latent heat, the namely process of moisture in recovered flue gas.Therefore the recovery of flue gas moisture for water-deficient areas such as northwests, has important water saving meaning.
Traditional boiler waste gas heat reclamation device is single air-water heat exchanger mostly, and its heat transfer coefficient is little, heat recovery rate is low, generally only has 50% to 60%.The legacy equipment heat recovery rate is low is mainly the restriction that is subjected to flue gas dew point (90 ℃ of left and right), because: contain flue dust in (1) flue gas, in case the flue gas dewfall, flue dust will deposit and be attached on heat exchanger, stops up fin, and sharply worsens heat-transfer effect; (2) contain SO in flue gas
2, NO, NO
2Deng corrosive gas, in case the flue gas dewfall will cause heavy corrosion, cause heat exchanger to clean that cost is high, heat exchanger is short service life.Technology and device are denitrogenated in traditional boiler waste gas desulfurization, though can accomplish the rate of recovery of higher S and N, but cause the waste of middle heat and the waste of water not to take into full account to technique, cause the desulfurization of these simple functions to denitrogenate cost of investment and the operating cost of technical matters or device very high, reduced its economic feasibility.
Therefore, present flue gas processing device, function ratio is more single, mainly contains following shortcoming: 1, pay attention to desulfurization and denitrogenate, maybe can't realize energy recovery and ignored energy recovery; 2, pay attention to heat recovery, but be subjected to the restriction of smoke condensation and corrosion, latent heat that can't recycle-water steam; 3, ignored the recycling of moisture in the flue gas.
The utility model content
The utility model is that the present flue gas treatment technology of solution is single with equipment existence recovery function and material, moisture and the low problem of the sulfur-nitrogen compound rate of recovery in the heat energy in flue gas, flue gas, and then provide a kind of washing coagulating type flue gas three retracting devices.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be:
washing coagulating type flue gas three retracting devices comprise washing spray column, air water condense preheater, the first water and water-to-water heat exchanger, sulphur nitrogen recycle-water processor, the first spray pump, the first water treatment pump, the first escape pipe, desulfurization water pipe, condensate pipe, the first spray header and heat-carrying circulating water pipe, top in the washing spray column is provided with the first gas-water separation filler, middle part in the washing spray column is equipped with the first shower nozzle, the spray direction of the first shower nozzle arranges downwards, bottom in the washing spray column is provided with the first spraying filler, lower end in the washing spray column is provided with the first drip tray, be provided with the first air inlet pipe on the sidewall of washing spray column lower end, the upper end of washing spray column is communicated with setting with an end of the first escape pipe, be connected with the air water preheater that condenses on the first escape pipe, both be communicated with and arrange, the lower end of the first drip tray is communicated with successively and is connected with the first water treatment pump, sulphur nitrogen recycle-water processor and desulfurization water pipe, the water side of desulfurization water pipe is communicated with setting with the lower end sidewall of washing spray column, the sidewall of the first drip tray is communicated with setting with the first spray pump and the first spray header successively, the water side of the first spray header is passed the first water and is communicated with setting with water-to-water heat exchanger with the first shower nozzle, air water condense preheater the lower end by condensate pipe with the washing spray column the lower end sidewall be communicated with setting, the heat-carrying circulating water pipe is communicated with air water condense preheater and the first water and water-to-water heat exchanger from top to bottom successively.
The utility model compared with prior art has following beneficial effect: flue gas is after the first air inlet pipe enters the washing spray column, the chemical substance generation chemical reaction of the oxides such as the sulphur in flue gas, nitrogen in spraying filler surface and shower water, form stable chemical substance and be dissolved in shower water, processed in sulphur nitrogen recycle-water processor, realized the recovery of the oxides such as nitrogen, sulphur; The part shower water is subjected to thermal evaporation in the washing spray column, increase the water capacity of flue gas, flue gas enters the air water preheater that condenses under near saturated state, the moisture of the moisture that originally contained in flue gas and shower water evaporation all will be condensed into liquid state at the air water preheater that condenses, and flow back in the washing spray column by condensate pipe, completed the recovery and reuse of flue gas moisture; Flue dust and sulfur-nitrogen compound are removed clean in spray column in washing, have avoided air water condense dust deposition and corrosion in preheater, can reduce to a greater extent flue-gas temperature; After high-temperature flue gas enters the washing spray column, the part of smoke heat passes to shower water by the contact heat convection and makes it to heat up, the part of smoke heat evaporates the latent heat form that is converted into steam by the sensible heat form by moisture, the flue gas heat that shower water absorbs passes to heat-carrying recirculated water by the first water and water-to-water heat exchanger again; By the air water preheater that condenses, whole latent heat that remaining sensible heat and steam contain are passed to heat-carrying recirculated water again from spray column flue gas out, completed the recovery of flue gas heat, gas and water poor efficiency heat exchange mode replaced traditional flue gas heat recovery with the efficient heat exchange mode such as contact heat exchange, condensation heat transfer, water and water heat exchange in this heat recycle process in, the investment of further saving heat transmission equipment; By the first spray pump and the first water treatment pump, shower water is reused.The utility model has been realized three recovery of the moisture in the flue gas, sulphur nitride and heat, has improved the rate of recovery and the utilization rate of moisture in the heat energy in the flue gas, flue gas and sulfur-nitrogen compound.
Description of drawings
Fig. 1 is the schematic diagram of washing coagulating type flue gas of the present utility model three retracting devices, Fig. 2 is the schematic diagram of washing coagulating type flue gas three retracting devices in the specific embodiment two, Fig. 3 is the schematic diagram of washing coagulating type flue gas three retracting devices in the specific embodiment three, Fig. 4 is the schematic diagram of washing coagulating type flue gas three retracting devices in the specific embodiment four, and Fig. 5 is the schematic diagram of washing coagulating type flue gas three retracting devices in the specific embodiment five.
The specific embodiment
the specific embodiment one: in conjunction with Fig. 1 explanation, washing coagulating type flue gas three retracting devices of present embodiment comprise washing spray column 1, air water condense preheater 2, the first water and water-to-water heat exchanger 3, sulphur nitrogen recycle-water processor 4, the first spray pump 5, the first water treatment pump 6, the first escape pipe 7, desulfurization water pipe 8, condensate pipe 9, the first spray header 10 and heat-carrying circulating water pipe 11, top in washing spray column 1 is provided with the first gas-water separation filler 1-1, middle part in washing spray column 1 is equipped with the first shower nozzle 1-2, the spray direction of the first shower nozzle 1-2 arranges downwards, bottom in washing spray column 1 is provided with the first spraying filler 1-3, lower end in washing spray column 1 is provided with the first drip tray 1-4, be provided with the first air inlet pipe 1-5 on the sidewall of washing spray column 1 lower end, the upper end of washing spray column 1 is communicated with setting with an end of the first escape pipe 7, be connected with the air water preheater 2 that condenses on the first escape pipe 7, both be communicated with and arrange, the lower end of the first drip tray 1-4 is communicated with successively and is connected with the first water treatment pump 6, sulphur nitrogen recycle-water processor 4 and desulfurization water pipe 8, the water side of desulfurization water pipe 8 is communicated with setting with the lower end sidewall of washing spray column 1, the sidewall of the first drip tray 1-4 is communicated with setting with the first spray pump 5 and the first spray header 10 successively, the water side of the first spray header 10 is passed the first water and is communicated with setting with water-to-water heat exchanger 3 with the first shower nozzle 1-2, the condense lower end of preheater 2 of air water is communicated with setting by condensate pipe 9 with the lower end sidewall of washing spray column 1, heat-carrying circulating water pipe 11 is communicated with successively condense preheater 2 and the first water and water-to-water heat exchanger 3 of air water from top to bottom and arranges.
Sulphur nitrogen recycle-water processor 4: from washing spray column water out, be rich in sulphur nitrogen and mud dirt, in this device, the compound such as sulphur, nitrogen and mud processed, realized the recovery of sulphur and nitrogen and the removal of flue dust.Process a water part up to standard and return to the washing spray column, unnecessary part is discharged as off-gas recovery water.
The air water preheater 2 that condenses: be mainly used in washing out saturated, smoke dust of spray column 1, without the heat recovery of the low-temperature flue gas of sulphur nitrogen, this preheater can be reduced to flue-gas temperature 10～30 ℃ of left and right, greatly improved the rate of recovery of heat energy in the flue gas, realized that by smoke condensation the water in flue gas reclaims simultaneously.
The first water and water-to-water heat exchanger 3: this heat exchanger is generally efficient plate-type heat-exchanger or shell and tube exchanger, in this heat exchanger, by flue gas washing water transfer heat to water in heat-carrying circulating water pipe 11, realize the high efficiente callback of part of smoke used heat.
Operation principle: after high-temperature flue gas enters washing spray column 1 by the first air inlet pipe 1-5, the part of smoke heat passes to the shower water of the first shower nozzle 1-2 ejection and makes it to heat up, and the heat of part of smoke evaporates the latent heat form that is converted into steam by the sensible heat form by moisture.The first spray pump 5 is shower water suction the first spray header 10, then is back to continue spray in the first shower nozzle 1-2, and the flue gas heat that shower water absorbs passes to recirculated water in heat-carrying circulating water pipe 11 by the first water and water-to-water heat exchanger 3 in this process.Pass to the heat-carrying recirculated water of low temperature heat-carrying circulating water pipe 11 by condense whole latent heat that preheater 2 contains remaining sensible heat and steam of air water again from spray column flue gas out.In whole energy transfer process, realized the pure countercurrent flow of flue gas and heat-carrying recirculated water, and heat transfer process has adopted the heat transfer coefficients such as contact heat exchange, condensation phase change, water and water heat exchange to be far longer than the high efficient heat exchanging mode of gas and water heat exchange.
In system, the transmittance process of the material such as nitrogen sulphur dirt is as follows: after flue gas enters washing spray column 1, surperficial at the first spraying filler 1-3, chemical reaction in sulphur, nitrogen oxide and shower water, form stable chemical substance and be dissolved in shower water, flue dust also is washed in shower water simultaneously, realize the removal of sulfureous in flue gas nitrogen dirt, and to the transfer of shower water.The sulphur nitrogen dirt of enrichment in shower water is processed and recycling in sulphur nitrogen recycle-water processor 4.
In system, the transmittance process of water is as follows: the part shower water is subjected to thermal evaporation in washing spray column 1, increase the water capacity of flue gas, enter the air water preheater 2 that condenses under near saturated state, the moisture content of the moisture that originally contained in flue gas and shower water evaporation all will be condensed into liquid state here, and cause in washing spray column 1 by condensate pipe 9, realize the recovery and reuse of flue gas moisture, the water after sulphur nitrogen recycle-water processor 4 is processed is back in the washing spray column simultaneously.
The specific embodiment two: in conjunction with Fig. 2 explanation, washing coagulating type flue gas three retracting devices of present embodiment also comprise flue gas water superheater 12, flue gas water superheater 12 is communicated with and is arranged on the first air inlet pipe 1-5 and washes between spray column 1, and heat-carrying circulating water pipe 11 also is communicated with flue gas water superheater 12 after the first water and water-to-water heat exchanger 3.
Flue gas water superheater 12: be used in this superheater, owing to being the high temperature heat exchange, dewfall can not occurring with more than heat-carrying circulating water heating to 100 ℃, therefore reduced the corrosion of the compounds such as sulphur, nitrogen to boiler tube wall.
So design, high-temperature flue gas at first in flue gas water superheater 12 by the heat convection mode with a part of sensible heat transfer to the heat-carrying recirculated water in heat-carrying circulating water pipe 11, after reducing, flue-gas temperature enters again in washing spray column 1, present embodiment is in order to obtain year thermal water utilization temperature (more than 100 ℃) of higher temperature, reduce simultaneously the temperature that flue gas enters washing spray column 1, satisfy the lower temperature requirement that sulfur-nitrogen compound carries out chemical reaction.Other compositions and annexation are identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 3 explanation, washing coagulating type flue gas three retracting devices of present embodiment also comprise shower water superheater 13, shower water superheater 13 is arranged in the first spraying filler 1-3, and the first spray header 10 is communicated with successively shower water superheater 13 and is connected water and is connected with the first shower nozzle 1-2 with water-to-water heat exchanger 3.
So design, the shower water from the first drip tray 1-4 extracts first heats through shower water superheater 13, enters the first water and water-to-water heat exchanger 3 after further heating up, and makes the heat-carrying recirculated water in heat-carrying circulating water pipe 11 obtain higher temperature.Other compositions and annexation are identical with the specific embodiment one.
The specific embodiment four: in conjunction with Fig. 4 explanation, washing coagulating type flue gas three retracting devices of present embodiment also comprise shower water preheater 14, shower water preheater 14 is arranged in the first spraying filler 1-3, and the first spray header 10 is communicated with successively the first water and is connected with the shower water preheater with water-to-water heat exchanger 3 and is connected with the first shower nozzle 1-2.
So design, the shower water from the first drip tray 1-4 extracts first directly enters the first water and water-to-water heat exchanger 3, and after heat exchange, temperature reduces, then preheats through shower water preheater 14, then enters washing spray column 1 and sprays.Other compositions and annexation are identical with the specific embodiment one.
the specific embodiment five: in conjunction with Fig. 5 explanation, washing coagulating type flue gas three retracting devices of present embodiment also comprise one-level spray column 15, and one-level spray column 15 comprises one-level spray tower body 15-1, the second gas-water separation filler 15-2, the second shower nozzle 15-3, the second spraying filler 15-4, the second drip tray 15-5, the second air inlet pipe 15-6, the second escape pipe 15-7, the second water and water-to-water heat exchanger 15-8, fume recovery hydrotreater 15-9, the second spray pump 15-10, the second water treatment pump 15-11, dedusting water pipe 15-12 and the second spray header 15-13, the second gas-water separation filler 15-2 is arranged on the top in one-level spray tower body 15-1, the second shower nozzle 15-3 is arranged on the middle part in one-level spray tower body 15-1, the spray direction of the second shower nozzle 15-3 arranges downwards, the second spraying filler 15-4 is arranged on the bottom in one-level spray tower body 15-1, the second drip tray 15-5 is arranged on the lower end in one-level spray tower body 15-1, the second air inlet pipe 15-6 is communicated with on the sidewall that is arranged on one-level spray tower body 15-1 lower end, the lower end of the second drip tray 15-5 is communicated with successively and is provided with the second water treatment pump 15-11, fume recovery hydrotreater 15-9 and dedusting water pipe 15-12, the water side of dedusting water pipe 15-12 is communicated with and is arranged on the sidewall of one-level spray tower body 15-1 lower end, be communicated with successively on the sidewall of the second drip tray 15-5 and be provided with the second spray pump 15-10 and the second spray header 15-13, the water side of the second spray header 15-13 is passed the second water and is communicated with setting with water-to-water heat exchanger 15-8 with the second shower nozzle 15-3, the end of the second escape pipe 15-7 is communicated with the upper end that is fixed in one-level spray tower body 15-1, the other end of the second escape pipe 15-7 is communicated with affixed with the first air inlet pipe 1-5 of washing spray column 1, the water side of heat-carrying circulating water pipe 11 passes the second water and water-to-water heat exchanger 15-8 arranges.
So design, one-level spray column 15 is mainly used in dedusting and heat exchange, and washing spray column 1 is mainly used in the desulfurization denitrification, and it is too high that the arranging of one-level spray column 15 can avoid entering the flue-gas temperature of washing spray column 1, guaranteed the removal effect of sulphur and nitrogen.Other compositions and annexation are identical with the specific embodiment one.
Claims (5)
1. washing coagulating type flue gas three retracting devices is characterized in that: described flue gas recovery device comprises washing spray column (1), air water condense preheater (2), the first water and water-to-water heat exchanger (3), sulphur nitrogen recycle-water processor (4), the first spray pump (5), the first water treatment pump (6), the first escape pipe (7), desulfurization water pipe (8), condensate pipe (9), the first spray header (10) and heat-carrying circulating water pipe (11), top in washing spray column (1) is provided with the first gas-water separation filler (1-1), middle part in washing spray column (1) is equipped with the first shower nozzle (1-2), the spray direction of the first shower nozzle (1-2) arranges downwards, bottom in washing spray column (1) is provided with the first spraying filler (1-3), lower end in washing spray column (1) is provided with the first drip tray (1-4), be provided with the first air inlet pipe (1-5) on the sidewall of washing spray column (1) lower end, the upper end of washing spray column (1) is communicated with setting with an end of the first escape pipe (7), be connected with the air water preheater (2) that condenses on the first escape pipe (7), both be communicated with and arrange, the lower end of the first drip tray (1-4) is communicated with successively and is connected with the first water treatment pump (6), sulphur nitrogen recycle-water processor (4) and desulfurization water pipe (8), the water side of desulfurization water pipe (8) is communicated with setting with the lower end sidewall of washing spray column (1), the sidewall of the first drip tray (1-4) is communicated with setting with the first spray pump (5) and the first spray header (10) successively, the water side of the first spray header (10) is passed the first water and is communicated with setting with water-to-water heat exchanger (3) with the first shower nozzle (1-2), the condense lower end of preheater (2) of air water is communicated with setting by condensate pipe (9) with the lower end sidewall of washing spray column (1), heat-carrying circulating water pipe (11) is communicated with air water condense preheater (2) and the first water and water-to-water heat exchanger (3) from top to bottom successively.
2. a kind of washing coagulating type flue gas according to claim 1 three retracting devices, it is characterized in that: described washing coagulating type flue gas recovery device also comprises flue gas water superheater (12), flue gas water superheater (12) is communicated with and is arranged on the first air inlet pipe (1-5) and washes between spray column (1), and heat-carrying circulating water pipe (11) is communicated with air water condense preheater (2), the first water and water-to-water heat exchanger (3) and flue gas water superheater (12) from top to bottom successively.
3. a kind of washing coagulating type flue gas according to claim 1 three retracting devices, it is characterized in that: described washing coagulating type flue gas recovery device also comprises shower water superheater (13), shower water superheater (13) is arranged in the first spraying filler (1-3), and the first spray header (10) is communicated with successively shower water superheater (13) and is connected water and is connected with the first shower nozzle (1-2) with water-to-water heat exchanger (3).
4. a kind of washing coagulating type flue gas according to claim 1 three retracting devices, it is characterized in that: described washing coagulating type flue gas recovery device also comprises shower water preheater (14), shower water preheater (14) is arranged in the first spraying filler (1-3), and the first spray header (10) is communicated with successively the first water and is connected 14 with water-to-water heat exchanger (3) with the shower water preheater) be connected with the first shower nozzle (1-2).
5. a kind of washing coagulating type flue gas according to claim 1 three retracting devices, it is characterized in that: described washing coagulating type off-gas recovery also comprises one-level spray column (15), one-level spray column (15) comprises one-level spray tower body (15-1), the second gas-water separation filler (15-2), the second shower nozzle (15-3), the second spraying filler (15-4), the second drip tray (15-5), the second air inlet pipe (15-6), the second escape pipe (15-7), the second water and water-to-water heat exchanger (15-8), fume recovery hydrotreater (15-9), the second spray pump (15-10), the second water treatment pump (15-11), dedusting water pipe (15-12) and the second spray header (15-13), the second gas-water separation filler (15-2) is arranged on the top in one-level spray tower body (15-1), the second shower nozzle (15-3) is arranged on the middle part in one-level spray tower body (15-1), the spray direction of the second shower nozzle (15-3) arranges downwards, the second spraying filler (15-4) is arranged on the bottom in one-level spray tower body (15-1), the second drip tray (15-5) is arranged on the lower end in one-level spray tower body (15-1), the second air inlet pipe (15-6) is communicated with on the sidewall that is arranged on one-level spray tower body (15-1) lower end, the lower end of the second drip tray (15-5) is communicated with successively and is provided with the second water treatment pump (15-11), fume recovery hydrotreater (15-9) and dedusting water pipe (15-12), the water side of dedusting water pipe (15-12) is communicated with and is arranged on the sidewall of one-level spray tower body (15-1) lower end, be communicated with successively on the sidewall of the second drip tray (15-5) and be provided with the second spray pump (15-10) and the second spray header (15-13), the water side of the second spray header (15-13) is passed the second water and is communicated with setting with water-to-water heat exchanger (15-8) with the second shower nozzle (15-3), one end of the second escape pipe (15-7) is communicated with the upper end that is fixed in one-level spray tower body (15-1), the other end of the second escape pipe (15-7) is communicated with affixed with first air inlet pipe (1-5) of washing spray column (1), the water side of heat-carrying circulating water pipe (11) passes the second water and water-to-water heat exchanger (15-8) arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207165054U CN202942807U (en) | 2012-12-21 | 2012-12-21 | Water-washing condensing-type smoke triple-recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207165054U CN202942807U (en) | 2012-12-21 | 2012-12-21 | Water-washing condensing-type smoke triple-recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN202942807U true CN202942807U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207165054U Withdrawn - After Issue CN202942807U (en) | 2012-12-21 | 2012-12-21 | Water-washing condensing-type smoke triple-recovery device |
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| CN (1) | CN202942807U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980198A (en) * | 2012-12-21 | 2013-03-20 | 山东北辰机电设备股份有限公司 | Washing condensing smoke triple recovery device |
| CN105258144A (en) * | 2015-10-19 | 2016-01-20 | 北京建筑大学 | Spraying type flue gas waste heat recovery device |
| CN105258143A (en) * | 2015-10-19 | 2016-01-20 | 北京建筑大学 | Spray type flue gas waste heat recycling device |
| CN105276600A (en) * | 2015-10-13 | 2016-01-27 | 北京建筑大学 | Flue-gas waste-heat recycling system |
| CN109869901A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | Natural gas straight hot type water heater |
| CN115382326A (en) * | 2022-10-09 | 2022-11-25 | 安徽莱格工程技术有限公司 | Waste gas washing heat energy recovery tower and recovery system using same |
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2012
- 2012-12-21 CN CN2012207165054U patent/CN202942807U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980198A (en) * | 2012-12-21 | 2013-03-20 | 山东北辰机电设备股份有限公司 | Washing condensing smoke triple recovery device |
| CN102980198B (en) * | 2012-12-21 | 2015-04-22 | 哈尔滨工业大学 | Washing condensing smoke triple recovery device |
| CN105276600A (en) * | 2015-10-13 | 2016-01-27 | 北京建筑大学 | Flue-gas waste-heat recycling system |
| CN105276600B (en) * | 2015-10-13 | 2018-07-27 | 北京建筑大学 | A kind of flue gas heat recovery system |
| CN105258144A (en) * | 2015-10-19 | 2016-01-20 | 北京建筑大学 | Spraying type flue gas waste heat recovery device |
| CN105258143A (en) * | 2015-10-19 | 2016-01-20 | 北京建筑大学 | Spray type flue gas waste heat recycling device |
| CN105258143B (en) * | 2015-10-19 | 2017-10-27 | 北京建筑大学 | A kind of fountain flue gas waste heat recovery apparatus |
| CN105258144B (en) * | 2015-10-19 | 2017-12-01 | 北京建筑大学 | A kind of fountain flue gas waste heat recovery apparatus |
| CN109869901A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | Natural gas straight hot type water heater |
| CN109869901B (en) * | 2017-12-02 | 2023-10-24 | 哈尔滨工大金涛科技股份有限公司 | Natural gas direct heating type water heater |
| CN115382326A (en) * | 2022-10-09 | 2022-11-25 | 安徽莱格工程技术有限公司 | Waste gas washing heat energy recovery tower and recovery system using same |
| CN115382326B (en) * | 2022-10-09 | 2024-08-02 | 安徽莱格工程技术有限公司 | Waste gas washing heat energy recovery tower and recovery system using same |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130522 Effective date of abandoning: 20150422 |