CN210145779U - Air cooling device with functions of eliminating smoke and efficiently and cooperatively removing pollutants - Google Patents

Air cooling device with functions of eliminating smoke and efficiently and cooperatively removing pollutants Download PDF

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Publication number
CN210145779U
CN210145779U CN201920361954.3U CN201920361954U CN210145779U CN 210145779 U CN210145779 U CN 210145779U CN 201920361954 U CN201920361954 U CN 201920361954U CN 210145779 U CN210145779 U CN 210145779U
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China
Prior art keywords
cooling device
air cooling
flue gas
air
tube bundle
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CN201920361954.3U
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Chinese (zh)
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郭思鹏
周洋
孙英浩
李曈
张政
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Datang Northeast Electric Power Test and Research Institute Co Ltd
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Datang Northeast Electric Power Test and Research Institute Co Ltd
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Abstract

The utility model relates to an air inlet technical field, in particular to possess high-efficient air cooling device who removes the function in coordination of flue gas elimination and pollutant. The flue gas gets into this device behind the desulfurizing tower discharge, takes place forced convection heat transfer through the environment cold air that sends into with the forced draught blower, and the dehumidification of cooling down along with the reduction of flue gas temperature, vapor in the flue gas can condense and adsorb on heat exchanger tube bank outer wall and air cooling device inner wall, and pollutants such as thick liquid, dust, sulfur dioxide, aerosol granule in the flue gas also can be caught or absorbed along with the condensation of liquid drop. Through the utility model discloses an implement, can reduce water content in the flue gas by a wide margin, effectively eliminate phenomenons such as "wet smoke feather", "gypsum rain", pollutant such as dust, sulfur dioxide, thick liquid, soluble salt, aerosol granule in the desorption flue gas simultaneously can also be in coordination, are showing to alleviate the pollution that coal fired power plant flue gas caused all ring edge borders.

Description

Air cooling device with functions of eliminating smoke and efficiently and cooperatively removing pollutants
Technical Field
The utility model relates to an air inlet technical field, in particular to possess high-efficient air cooling device who removes the function in coordination of flue gas elimination and pollutant.
Background
With the increasing strictness of environmental requirements, the emission standard of pollutants of coal-fired power plants is improved, and the emission of smoke pollutants of over 300MW units in China reaches the ultralow emission standard in 2020. Most of domestic coal-fired power plants adopt a wet desulphurization process, the flue gas is discharged by a desulphurization tower and then becomes saturated wet flue gas, the moisture content is greatly increased, and the flue gas still can carry pollutants such as slurry, soluble salt, dust, aerosol particles and the like, a chimney adopts wet flue gas for discharge, a large amount of liquid condensate water appears at the outlet of the chimney, and a phenomenon of 'wet smoke plume' (commonly called white smoke) or gypsum rain is formed, so that the wet smoke plume is severe in winter, certain pollution is generated to the surrounding environment, and the life of nearby residents is influenced. In order to improve the enterprise image, respond to the national call and promote the green and environment-friendly development of cities, the 'wet smoke plume' and the gypsum rain phenomenon need to be treated urgently, and in view of the above, the present invention is developed by deeply researching the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an air cooling device who possesses flue gas disappears and high-efficient desorption function in coordination of pollutant utilizes ambient air temperature far less than flue gas temperature's characteristics (especially china northeast area winter), to the flue gas dehumidification of cooling down, carries out desorption in coordination to pollutants such as thick liquid, dust, soluble salt carried in the flue gas simultaneously, and the comdenstion water of collection is recoverable recycling after handling, has reduced the water cost of power plant.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
an air cooling device with efficient and collaborative removal functions of smoke and pollutants comprises: an inlet flue, an air cooling device shell, a heat exchange tube bundle, a metal filter cover, a demister flushing pipeline, a demister flushing nozzle, a ridge demister, a liquid level meter, a solenoid valve, a condensed water discharge pipeline, an air supply pipeline, an air feeder, a metal filter screen and an outlet flue, wherein the air cooling device shell is arranged between the inlet flue and the outlet flue, namely behind a wet desulphurization absorption tower and in front of a chimney, the heat exchange tube bundle is arranged inside the air cooling device, the ridge demister is arranged at the tail part of the air cooling device, the demister flushing nozzle is arranged above the ridge demister and connected with the demister flushing pipeline, the liquid level meter is arranged below the air cooling device shell and connected with the condensed water discharge pipeline, the solenoid valve is arranged on the condensed water discharge pipeline, the air supply pipeline is arranged at the side part of the air cooling device shell and connected with the heat exchange tube bundle, the, the air feeder is arranged on the air feeding pipeline, and the metal filter screen is arranged at the inlet of the air feeder; the flue gas passes through the air cooling device shell and exchanges heat with the heat exchange tube bundle, so that the flue gas is condensed into small liquid drops after being cooled to be separated out and adsorbed on the outer wall of the heat exchange tube bundle and the inner wall of the air cooling device shell, and pollutants such as absorption tower slurry, dust, aerosol particles and the like carried in the flue gas are captured or absorbed by the liquid drops.
Furthermore, the heat exchange tube bundle is communicated with the air supply pipeline, ambient air flows through the tube bundle, and an included angle of 5-10 degrees is formed between the tube bundle and the horizontal plane.
Furthermore, the lower part of the shell of the air cooling device is in the shape of a rectangular pyramid, and the height of the shell is 0.5-1 m.
Furthermore, the electromagnetic valve is interlocked with the liquid level height measured by the liquid level meter, when the liquid level height reaches 0.4m, the electromagnetic valve is opened, and when the liquid level height is less than 0.1m, the electromagnetic valve is closed.
Furthermore, the heat exchange tube bundle and the air cooling device shell should be made of corrosion-resistant and abrasion-resistant materials.
Furthermore, the shell of the air cooling device, the flushing pipeline of the demister and the condensed water discharge pipeline are externally coated with heat insulation materials.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a desulfurization back air cooling device who possesses high-efficient desorption function in coordination of pollutant need not external cold source, utilize ambient air temperature far less than the characteristics of flue gas temperature (especially china northeast area winter), to the flue gas dehumidification of cooling down, effectively alleviated "wet smoke feather" and gypsum rain problem, carry out desorption in coordination to pollutants such as the thick liquid that carries in the flue gas, dust, soluble salt simultaneously, the comdenstion water of collection is recoverable recycling after handling, the water cost of power plant has been reduced.
Drawings
FIG. 1 is a front view of an air cooler with efficient synergistic flue gas and pollutant removal;
FIG. 2 is a top view of an air cooler with efficient synergistic flue gas and pollutant removal;
FIG. 3 is a side view of an air cooler with efficient coordinated flue gas and contaminant removal.
In the figure: the device comprises a desulfurization absorption tower 1, an inlet flue 2, an air cooling device 3, a heat exchange tube bundle 4, a metal filter hood 5, a demister flushing pipeline 6, a demister flushing nozzle 7, a ridge demister 8, a liquid level meter 9, an electromagnetic valve 10, a condensate water discharge pipeline 11, an air supply pipeline 12, an air feeder 13, a metal filter screen 14 and an outlet flue 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a post-desulfurization air cooling device with efficient and synergistic pollutant removal function comprises: the device comprises an inlet flue 2, an air cooling device shell 3, a heat exchange tube bundle 4, a metal filter cover 5, a demister flushing pipeline 6, a demister flushing nozzle 7, a ridge demister 8, a liquid level meter 9, an electromagnetic valve 10, a condensate water discharge pipeline 11, an air supply pipeline 12, an air feeder 13, a metal filter screen 14 and an outlet flue 16; the air cooling device shell 3 is arranged between the inlet flue 2 and the outlet flue 16, namely behind the wet desulphurization absorption tower 1 and in front of the chimney 15, the heat exchange tube bundle 4 is arranged inside the air cooling device, the ridge demister 8 is arranged at the tail part of the air cooling device, the demister flushing nozzle 7 is arranged above the ridge demister 8 and is connected with a demister flushing pipeline (6), the liquid level meter 9 is arranged below the air cooling device shell 3 and is connected with a condensate water discharge pipeline 11, the electromagnetic valve 10 is arranged on the condensate water discharge pipeline, the air supply pipeline 12 is arranged at the side part of the air cooling device shell and is connected with the heat exchange tube bundle 4, the metal filter cover 5 is arranged at the other side of the air cooling device, the air feeder 13 is arranged on the air supply pipeline 12, and the metal filter screen 14 is; the heat exchange tube bundle 4 is communicated with an air supply pipeline, ambient air flows in the heat exchange tube bundle, and an included angle of 5-10 degrees is formed between the tube bundle and the horizontal plane. The lower part of the air cooling device shell 3 is in the shape of a rectangular pyramid, and the height is 0.5 m-1 m; the shell of the air cooling device, the flushing pipeline of the demister and the condensed water discharge pipeline are externally coated with heat insulation materials; the heat exchange tube bundle and the air cooling device shell are made of corrosion-resistant and abrasion-resistant materials; the electromagnetic valve 10 is interlocked with the liquid level height measured by the liquid level meter 9, when the liquid level height reaches 0.4m, the electromagnetic valve 10 is interlocked and opened, and when the liquid level height is less than 0.1m, the electromagnetic valve is interlocked and closed.
The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.
Example (b): when the device works, saturated wet flue gas enters the shell 3 of the air cooling device after being discharged from the desulfurization absorption tower 1, and exchanges heat with the heat exchange tube bundle 4, the inside of the heat exchange tube bundle 4 is ambient cold air sent by the air feeder 13 with the metal filter screen 14, the flue gas is condensed into small liquid drops after being cooled, and the small liquid drops are separated out and adsorbed on the outer wall of the heat exchange tube bundle 4 and the inner wall of the shell 3 of the air cooling device, meanwhile, pollutants such as slurry, dust, aerosol particles and the like of the absorption tower carried in the flue gas are captured or absorbed by the liquid drops and are converged to the cone at the lower part of the air cooling device, the flue gas is discharged from the condensed water discharge pipeline 11 to the wastewater treatment device, then the flue gas passes through the ridge demister 8 at the tail part of the air cooling device, unadsorbed liquid drops are further captured and converged below the air, the demister is flushed periodically.
As a preferred scheme, the heat exchange tube bundle is further communicated with an air supply pipeline, ambient air flows in the heat exchange tube bundle, and an included angle of the tube bundle and the horizontal plane is 5-10 degrees.
Preferably, the air cooling device body has a rectangular pyramid lower part with a height of 0.5 to 1 m.
As a preferred scheme, the air cooling device body, the demister flushing pipeline and the condensed water discharge pipeline are externally coated with heat insulation materials.
Preferably, the heat exchange tube bundle and the air cooling device body are made of corrosion-resistant and abrasion-resistant materials.
Preferably, the electromagnetic valve is interlocked with the liquid level height measured by the liquid level meter, the electromagnetic valve is opened when the liquid level height reaches 0.4m, and the electromagnetic valve is closed when the liquid level height is less than 0.1 m.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Air cooling device who possesses high-efficient removal in coordination of flue gas elimination and pollutant, including entry flue (2), air cooling device casing (3), heat exchange tube bank (4), metal filter cover (5), defroster wash pipeline (6), defroster wash nozzle (7), ridge defroster (8), level gauge (9), solenoid valve (10), comdenstion water discharge tube way (11), blast pipe way (12), forced draught blower (13), metal filter screen (14), export flue (16), its characterized in that: the air cooling device shell (3) is arranged between the inlet flue (2) and the outlet flue (16), namely behind the wet desulphurization absorption tower (1) and in front of a chimney (15), the heat exchange tube bundle (4) is arranged in the air cooling device, the ridge type demister (8) is arranged at the tail part of the air cooling device, the demister flushing nozzle (7) is arranged above the ridge type demister (8) and is connected with a demister flushing pipeline (6), a liquid level meter (9) is arranged below the air cooling device shell (3) and is connected with a condensed water discharge pipeline (11), an electromagnetic valve (10) is arranged on the condensed water discharge pipeline, an air supply pipeline (12) is arranged at the side part of the air cooling device shell and is connected with the heat exchange tube bundle (4), a metal filter hood (5) is arranged at the other side of the air cooling device, and an air feeder (13) is arranged on the air supply pipeline (12), the metal filter screen (14) is arranged at the inlet of the air blower; the flue gas passes through the air cooling device shell (3), and exchanges heat with the heat exchange tube bundle (4), so that the flue gas is condensed into small liquid drops after being cooled to be separated out and adsorbed on the outer wall of the heat exchange tube bundle (4) and the inner wall of the air cooling device shell (3), and meanwhile, pollutants such as absorption tower slurry, dust, aerosol particles and the like carried in the flue gas are captured or absorbed by the liquid drops.
2. The air cooling device with the efficient and cooperative smoke abatement and pollutant removal function of claim 1, wherein: the heat exchange tube bundle (4) is communicated with the air supply pipeline (12), ambient air flows through the tube bundle, and an included angle of 5-10 degrees is formed between the tube bundle and the horizontal plane.
3. The air cooling device with the efficient and cooperative smoke abatement and pollutant removal function of claim 1, wherein: the lower part of the air cooling device shell (3) is in the shape of a rectangular pyramid, and the height is 0.5-1 m.
4. The air cooling device with the efficient and cooperative smoke abatement and pollutant removal function of claim 1, wherein: the electromagnetic valve (10) is interlocked with the liquid level height measured by the liquid level meter (9), when the liquid level height reaches 0.4m, the electromagnetic valve (10) is interlocked and opened, and when the liquid level height is less than 0.1m, the electromagnetic valve (10) is interlocked and closed.
5. The air cooling device with the efficient and cooperative smoke abatement and pollutant removal function of claim 1, wherein: the heat exchange tube bundle (4) and the air cooling device shell (3) are made of corrosion-resistant and abrasion-resistant materials.
6. The air cooling device with the efficient and cooperative smoke abatement and pollutant removal function of claim 1, wherein: the air cooling device shell (3), the demister flushing pipeline (6) and the condensed water discharge pipeline (11) are externally coated with heat insulation materials.
CN201920361954.3U 2019-03-21 2019-03-21 Air cooling device with functions of eliminating smoke and efficiently and cooperatively removing pollutants Active CN210145779U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920361954.3U CN210145779U (en) 2019-03-21 2019-03-21 Air cooling device with functions of eliminating smoke and efficiently and cooperatively removing pollutants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920361954.3U CN210145779U (en) 2019-03-21 2019-03-21 Air cooling device with functions of eliminating smoke and efficiently and cooperatively removing pollutants

Publications (1)

Publication Number Publication Date
CN210145779U true CN210145779U (en) 2020-03-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112076550A (en) * 2020-09-17 2020-12-15 谷建兴 Flue gas whitening and purifying treatment system for flue gas emission treatment of thermal power plant
CN115216345A (en) * 2022-07-19 2022-10-21 西安交通大学 Multi-source combustible solid waste gasification thermoelectric carbon poly-generation system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112076550A (en) * 2020-09-17 2020-12-15 谷建兴 Flue gas whitening and purifying treatment system for flue gas emission treatment of thermal power plant
CN112076550B (en) * 2020-09-17 2021-10-22 江西大唐国际抚州发电有限责任公司 Flue gas whitening and purifying treatment system for flue gas emission treatment of thermal power plant
CN115216345A (en) * 2022-07-19 2022-10-21 西安交通大学 Multi-source combustible solid waste gasification thermoelectric carbon poly-generation system

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