CN108525503A - A kind of flue gas disappears white device - Google Patents
A kind of flue gas disappears white device Download PDFInfo
- Publication number
- CN108525503A CN108525503A CN201810615754.6A CN201810615754A CN108525503A CN 108525503 A CN108525503 A CN 108525503A CN 201810615754 A CN201810615754 A CN 201810615754A CN 108525503 A CN108525503 A CN 108525503A
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- Prior art keywords
- pipe portion
- pipe
- cooling
- flue gas
- pipe fitting
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (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
Disappear white device the invention discloses a kind of flue gas, including shell, pipe fitting, the shell is equipped with the heating pipe portion for closing off setting, cool down pipe portion, heating pipe portion is arranged in the lower section of cooling pipe portion, heat up pipe portion, cooling down tube portion She You pipe fitting, heating pipe portion is connected to the pipe fitting for the pipe portion that cools down and is vertically arranged, conductive fluid is equipped in pipe fitting, one end of heating pipe portion enters pipeline equipped with flue gas, the other end of heating pipe portion is connected to the desulfurization air inlet of desulfurizing tower, the one end for the pipe portion that cools down is equipped with cooling input pipe, cooling input pipe is connected to by radiator with the desulfurization exhaust outlet of desulfurizing tower, the other end for the pipe portion that cools down is equipped with cooling efferent duct, cooling efferent duct is connected to chimney.The advantages of which incorporates GGH and MGGH solves the problems, such as that MGGH operating costs are high, and equipment size is small, low cost, to eliminate white cigarette effect good.
Description
Technical field
The present invention relates to environment-friendly processing units, are exactly that a kind of flue gas disappears white device.
Background technology
After flue gas have passed through flue gas ash removal and wet desulphurization, major pollutants are cleaned, but flue gas is saturation after wet method
Wet flue gas, comprising the entrainment of a large amount of liquid water and vaporous water in flue gas, in a large amount of steam of wet desulphurization discharge, there are many dissolvings
Salt and other non-dissolved matters generate a large amount of superfine particulate matters after being dehydrated in an atmosphere, become invisible particle.These ultra-fine
Grain object is hidden in air, and it is long to stay aloft the time, does not settle, and has extremely strong transfer ability, control and difficulty of governance are very
Greatly.Quiet steady weather or inversion weather are encountered, and absorbs water, expand, adhere to, become larger, causes environmental pollution, simultaneously because wet desulphurization
Flue gas is saturation wet flue gas afterwards, therefore flue gas after desulfurization has certain corrosivity, can corrode flue and chimney, after wet desulphurization
The coloured plume and white cigarette formed also results in certain sense organ pollution, therefore each state all by white cigarettes such as wet desulphurizations and has in research
The method that color plume is eliminated.
More popular method is to use gas-gas heat exchanger GGH at present, its effect will be after desulfurization using former flue gas
Neat stress is heated, and exhaust gas temperature is made to reach on dew point, mitigates " gypsum rain " phenomenon, mitigates the corruption to flue and chimney
Erosion reduces chimney anticorrosion maintenance cost, improves the diffusance of pollutant；It is lowered into the flue-gas temperature on absorption tower simultaneously, reduces
To corrosion-resistant process specifications in tower.But the mass-transfer efficiency of GGH is low, build is huge, and cost is high, while GGH heat transfer sheets
It is thin, while being contacted with low-temperature flue gas section, therefore cause heat conductive mass to decline with heat transfer sheet burn into heat transfer sheet knot ash is be easy to cause,
Service life is relatively low.
In addition low low-level (stack-gas) economizer MGGH can be used, its effect is added the flue gas after desulfurization also with former flue gas
Heat can also make exhaust gas temperature reach dew point or more, essentially identical with GGH basic roles, MGGH using water as heat transferring medium,
High temperature section flue gas heats water, reaches low-temperature zone, and low-temperature zone flue gas is heated up with hot water and is heated, while water is cooled down.MGGH is adopted
It is exchanged heat with aqueous medium, solves GGH heat exchanger etching problems, the service life is higher, but increase water pump is needed to be provided for heat transfer medium
Power cycle, operating cost is higher, simultaneously because there are two-part heat exchange, heat exchange efficiency is low, and exhaust gas temperature may be caused unstable
It is fixed, and build is huge, and cost is high.
Invention content
Disappear white device the technical problem to be solved in the present invention is to provide a kind of flue gas, which incorporates GGH's and MGGH
Advantage solves the problems, such as that MGGH operating costs are high, and equipment size is small, low cost, to eliminate white cigarette effect good.
In order to solve the above technical problems, the present invention uses following technological means：
A kind of flue gas disappears white device, including shell, pipe fitting, the shell be equipped with close off setting heating pipe portion,
Cool down pipe portion, heating pipe portion be arranged cooling pipe portion lower section, heating pipe portion, cooling tube portion not be equipped with pipe fitting, heating pipe portion
It is connected to the pipe fitting of cooling pipe portion and is vertically arranged, conductive fluid is equipped in pipe fitting, the one end for the pipe portion that heats up enters equipped with flue gas
Pipeline, the other end for the pipe portion that heats up are connected to the desulfurization air inlet of desulfurizing tower, and the one end for the pipe portion that cools down is equipped with cooling input pipe, drop
Warm input pipe is connected to by radiator with the desulfurization exhaust outlet of desulfurizing tower, and the other end for the pipe portion that cools down is equipped with cooling efferent duct, drop
Warm efferent duct is connected to chimney.
High-temperature flue gas by enter heat up pipe portion heat exchange after, flue-gas temperature be down to 100 DEG C or so it is rear enter desulfurizing tower, desulfurization
Tower is wet desulphurization, and top is disposed with spray equipment, demister etc., since the technology is not repeat, desulfurization at existing ripe
Flue gas afterwards enters radiator, after flue gas is further cooled to 40-60 DEG C by radiator, using cooling pipe portion heat exchange
Afterwards, flue-gas temperature is gone up to 80 DEG C or more, compared with dew-point temperature height, into smoke stack emission, due to more than dew-point temperature, so cigarette
Chimney does not have to anti-corrosion, simultaneously because the raising of exhaust gas temperature causes chimney lifting force to increase, diffusion conditions are more preferable, changed with ambient temperature
It is hot very fast, no longer there is white cigarette and flue gas trailing phenomenon.
The operation principle of the present apparatus is as follows：
High-temperature flue gas passes through from the pipe fitting side in heating pipe portion, and heat is passed in the form of heat radiation, heat transfer
Heat up pipe portion in pipe fitting, heat up pipe portion in pipe fitting in be equipped with liquid water, water heat absorption heating rise, meanwhile, cooling pipe portion,
Relatively low by the flue-gas temperature after radiator, the water in the pipe fitting for the pipe portion that cools down by heat radiation and transmits heat release cooling, pipe fitting
Temperature difference is formed, to form pressure difference, water circulates under the action of pressure difference in pipe fitting up and down, without providing pressure
Circulating pressure, you can in internal pipe fitting internal circulation flow, realize heat absorption and the exothermic process of flue gas.
Compared with prior art, the feature of protrusion is：
The present apparatus combines the advantages of GGH and MGGH, using conductive fluid as heat transferring medium, passes through hot water and cold water density
Different realize that from flowing, the effective solution high problem of MGGH operating costs will heat up pipe portion, cooling pipe portion is integrated, and have
Effect reduces equipment size, reduces cost, ensures to eliminate white cigarette.
Further optimal technical scheme is as follows：
Transverse connecting pipe is equipped in the cooling pipe portion, the top of pipe fitting is connected to transverse connecting pipe respectively, pipe fitting
Bottom extends downwardly into heating pipe portion, and pipe fitting is all closed and connect with heating pipe portion, cooling pipe portion.
It is that can add water into pipe fitting by transverse connecting pipe by the way that transverse connecting pipe one is arranged, second is that facilitating the company of pipe fitting
Connect setting.
The other end of the heating pipe portion is connected to by desulfurization connecting tube with the desulfurization air inlet of desulfurizing tower.
By the way that desulfurization connecting tube is arranged, the flue gas after will heat up is transported to the desulfurization air inlet of desulfurization tower bottom.
The heat-conducting liquid is water.
The specific heat capacity of water is big, and heat conduction is relatively preferable, and at low cost.
The radiator is finned tubulation radiator or spraying cooling radiator.
Flue gas becomes saturation wet flue gas after desulfurizing tower, passes through finned tubulation radiator or spraying cooling radiator
Afterwards, flue-gas temperature is lowered, and having a large amount of liquid water after saturation wet flue gas cooling is precipitated, liquid water by pipeline connect into
Desulphurization system reuse, a large amount of dust and salt in flue gas can be precipitated and as liquid water enter desulphurization system, and then reduce dirty
Contaminate object discharge.
Electric heating wire is equipped in the pipe fitting.
It can be effectively increased hot water temperature by increasing electric heating wire, electric heating wire uses variable frequency adjustment pattern, in smoke evacuation temperature
When degree is not high, synchronous averaging electric heating equipment increases hot water temperature.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Reference sign：1- flue gases enter pipeline；2- flue gases disappear white device；3- heating pipe portions；4- water；5- is de-
Sulphur connecting tube；6- desulfurization air inlets；7- desulfurizing towers；8- desulfurization exhaust outlets；9- radiators；10- cooling input pipes；11-
Cool down pipe portion；12- transverse connecting pipes；13- cooling efferent ducts；14- chimneys.
Specific implementation mode
With reference to embodiment, further illustrate the present invention.
Referring to Fig. 1 it is found that a kind of flue gas of the present invention disappears white device 2, it is made of shell, pipe fitting；Shell is equipped with and seals respectively
Heating pipe portion 3, the cooling pipe portion 11 of setting are closed, heating pipe portion 3 is arranged in the lower section of cooling pipe portion 11, heating pipe portion 3, cooling pipe
Portion 11 is respectively equipped with pipe fitting, and heating pipe portion 3 is connected to the pipe fitting for the pipe portion 11 that cools down and is vertically arranged, and heat conduction is equipped in pipe fitting
One end of liquid, the pipe portion 3 that heats up enters pipeline 1 equipped with flue gas, and the other end for the pipe portion 3 that heats up connects with the desulfurization air inlet 6 of desulfurizing tower 7
Logical, one end of cooling pipe portion 11 is equipped with cooling input pipe 10, and cooling input pipe 10 is arranged by the desulfurization of radiator 9 and desulfurizing tower 7
Gas port 8 is connected to, and the other end of cooling pipe portion 11 is equipped with cooling efferent duct 13, and cooling efferent duct 13 is connected to chimney 14.
Transverse connecting pipe 12 is equipped in the pipe portion 11 that cools down, the top of pipe fitting is connected to transverse connecting pipe 12 respectively, pipe fitting
Bottom extends downwardly into heating pipe portion 3, and pipe fitting is all closed and connect with heating pipe portion 3, cooling pipe portion 11.
It is that can add water 4 into pipe fitting by transverse connecting pipe 12 by the way that transverse connecting pipe 12 is arranged, second is that facilitating pipe
The connection of part is arranged.
The other end of heating pipe portion 3 is connected to by desulfurization connecting tube 5 with the desulfurization air inlet 6 of desulfurizing tower 7.
By the way that desulfurization connecting tube 5 is arranged, the flue gas after will heat up is transported to the desulfurization air inlet 6 of 7 bottom of desulfurizing tower.
Heat-conducting liquid is water 4.
The specific heat capacity of water 4 is big, and heat conduction is relatively preferable, and at low cost.
Radiator 9 is finned tubulation radiator or spraying cooling radiator.
Flue gas becomes saturation wet flue gas after desulfurizing tower 7, is radiated by finned tubulation radiator or spraying cooling
After device, flue-gas temperature is lowered, and has the precipitation of a large amount of liquid water 4 after saturation wet flue gas cooling, liquid water 4 is connected by pipeline
Desulphurization system reuse is accessed, a large amount of dust and salt in flue gas can be precipitated and as liquid water 4 enter desulphurization system, and then subtract
Of low pollution object discharges.
Electric heating wire is equipped in pipe fitting.
It can be effectively increased 4 temperature of hot water by increasing electric heating wire, electric heating wire uses variable frequency adjustment pattern, in smoke evacuation temperature
When degree is not high, synchronous averaging electric heating equipment increases by 4 temperature of hot water.
The course of work of the present embodiment is as follows：After high-temperature flue gas is by entering the heating heat exchange of pipe portion 3, flue-gas temperature is down to
100 DEG C or so rear into desulfurizing tower 7, and desulfurizing tower 7 is wet desulphurization, and top is disposed with spray equipment, demister etc., due to this
Technology is not repeat, the flue gas after desulfurization enters radiator 9, and flue gas is further cooled to by radiator 9 at existing ripe
After 40-60 DEG C, after exchanging heat using cooling pipe portion 11, flue-gas temperature is gone up to 80 DEG C or more, compared with dew-point temperature height, into chimney
14 discharges, due to more than dew-point temperature, so chimney 14 does not have to anti-corrosion, simultaneously because the raising of exhaust gas temperature leads to chimney 14
Lifting force increases, and diffusion conditions are more preferable, very fast with ambient temperature heat exchange, white cigarette and flue gas trailing phenomenon no longer occurs.
The operation principle of the present embodiment is as follows：
High-temperature flue gas passes through from the pipe fitting side in heating pipe portion 3, and heat is passed in the form of heat radiation, heat transfer
Heat up pipe portion 3 in pipe fitting, heat up pipe portion 3 in pipe fitting in be equipped with liquid water 4, water 4 heat absorption heating rise, meanwhile, cooling down
Pipe portion 11, relatively low by the flue-gas temperature after radiator 9, the water 4 in the pipe fitting for the pipe portion 11 that cools down is put by heat radiation and transmission
Heat drop temperature, pipe fitting form temperature difference, and to form pressure difference, water 4 circulates under the action of pressure difference in pipe fitting up and down,
Without providing forced circulation pressure, you can in internal pipe fitting internal circulation flow, realize heat absorption and the exothermic process of flue gas.
Compared with prior art, the feature of protrusion is：
The present apparatus combines the advantages of GGH and MGGH, close by hot water 4 and cold water 4 using conductive fluid as heat transferring medium
The different of degree realize from flowing, and it is whole to will heat up pipe portion 3, cooling pipe portion 11 for the effective solution high problem of MGGH operating costs
It closes, effectively reduces equipment size, reduce cost, ensure to eliminate white cigarette.
The foregoing is merely preferably feasible embodiments of the invention, not thereby limit to the interest field of the present invention,
It is all to change with equivalent structure made by description of the invention and accompanying drawing content, it is both contained within the interest field of the present invention.
Claims (6)
- The white device 1. a kind of flue gas disappears, including shell, pipe fitting, it is characterised in that：The shell is equipped with and closes off setting Heat up pipe portion, cooling pipe portion, heating pipe portion be arranged cooling pipe portion lower section, heating pipe portion, cooling tube portion not She You pipe fitting, Heating pipe portion is connected to the pipe fitting for the pipe portion that cools down and is vertically arranged, and conductive fluid is equipped in pipe fitting, the one end for the pipe portion that heats up is equipped with Flue gas enters pipeline, and the other end for the pipe portion that heats up is connected to the desulfurization air inlet of desulfurizing tower, and the one end for the pipe portion that cools down is equipped with cooling Input pipe, cooling input pipe are connected to by radiator with the desulfurization exhaust outlet of desulfurizing tower, and the other end for the pipe portion that cools down is equipped with cooling Efferent duct, cooling efferent duct are connected to chimney.
- The white device 2. flue gas according to claim 1 disappears, it is characterised in that：Lateral connection is equipped in the cooling pipe portion Pipe, the top of pipe fitting are connected to transverse connecting pipe respectively, and the bottom of pipe fitting extends downwardly into heating pipe portion, and pipe fitting is managed with heating Portion, cooling pipe portion are all closed connection.
- The white device 3. flue gas according to claim 1 disappears, it is characterised in that：The other end of the heating pipe portion passes through de- Sulphur connecting tube is connected to the desulfurization air inlet of desulfurizing tower.
- The white device 4. flue gas according to claim 1 disappears, it is characterised in that：The heat-conducting liquid is water.
- The white device 5. flue gas according to claim 1 disappears, it is characterised in that：The radiator dissipates for finned tubulation Hot device or spraying cooling radiator.
- The white device 6. flue gas according to claim 1 disappears, it is characterised in that：Electric heating wire is equipped in the pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810615754.6A CN108525503A (en) | 2018-06-14 | 2018-06-14 | A kind of flue gas disappears white device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810615754.6A CN108525503A (en) | 2018-06-14 | 2018-06-14 | A kind of flue gas disappears white device |
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| Publication Number | Publication Date |
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| CN108525503A true CN108525503A (en) | 2018-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810615754.6A Pending CN108525503A (en) | 2018-06-14 | 2018-06-14 | A kind of flue gas disappears white device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889038A (en) * | 2018-09-22 | 2018-11-27 | 南京兰丰环保科技有限公司 | A kind of plume takes off white device |
| CN110586888A (en) * | 2019-10-16 | 2019-12-20 | 中冶南方连铸技术工程有限责任公司 | Secondary cooling steam white eliminating device for continuous casting |
| EP4083402A4 (en) * | 2019-12-27 | 2024-02-21 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas processing equipment and gas turbine plant |
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| CN101701717A (en) * | 2009-09-17 | 2010-05-05 | 西安热工研究院有限公司 | Heating process of low-temperature flue gas with wetting flue gas desulphurization |
| CN103672936A (en) * | 2012-09-26 | 2014-03-26 | 上海伏波环保设备有限公司 | Natural circulation indirect type flue gas reheater |
| CN105841178A (en) * | 2016-05-06 | 2016-08-10 | 山东岱荣节能环保科技有限公司 | White mist removing heat exchanger used for desulfurization system |
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| CN106669418A (en) * | 2015-11-09 | 2017-05-17 | 湖南中冶长天节能环保技术有限公司 | Device and method for comprehensively carrying out desulfurization, denitration and dioxin removing on steel sintering flue gas |
| CN108126482A (en) * | 2017-12-07 | 2018-06-08 | 天津华赛尔传热设备有限公司 | A kind of heating agent flue gas of tower condensed exterior disappears white system |
| CN208465596U (en) * | 2018-06-14 | 2019-02-05 | 河北星耀环境科技有限公司 | A kind of flue gas disappears white device |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101701717A (en) * | 2009-09-17 | 2010-05-05 | 西安热工研究院有限公司 | Heating process of low-temperature flue gas with wetting flue gas desulphurization |
| CN103672936A (en) * | 2012-09-26 | 2014-03-26 | 上海伏波环保设备有限公司 | Natural circulation indirect type flue gas reheater |
| CN106669418A (en) * | 2015-11-09 | 2017-05-17 | 湖南中冶长天节能环保技术有限公司 | Device and method for comprehensively carrying out desulfurization, denitration and dioxin removing on steel sintering flue gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889038A (en) * | 2018-09-22 | 2018-11-27 | 南京兰丰环保科技有限公司 | A kind of plume takes off white device |
| CN108889038B (en) * | 2018-09-22 | 2024-04-12 | 盐城市兰丰环境工程科技有限公司 | Tobacco feather whitening device |
| CN110586888A (en) * | 2019-10-16 | 2019-12-20 | 中冶南方连铸技术工程有限责任公司 | Secondary cooling steam white eliminating device for continuous casting |
| EP4083402A4 (en) * | 2019-12-27 | 2024-02-21 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas processing equipment and gas turbine plant |
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