CN111991979A - System for eliminating white smoke by mixing outside condensation warm air chimney - Google Patents
System for eliminating white smoke by mixing outside condensation warm air chimney Download PDFInfo
- Publication number
- CN111991979A CN111991979A CN202010781612.4A CN202010781612A CN111991979A CN 111991979 A CN111991979 A CN 111991979A CN 202010781612 A CN202010781612 A CN 202010781612A CN 111991979 A CN111991979 A CN 111991979A
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- Prior art keywords
- air
- chimney
- smoke
- warm air
- cooled
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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
- B01D53/002—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 by condensation
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- 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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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention relates to an external mixed flue gas white elimination system of a condensation warm air chimney. The chimney is separated by a chimney partition plate, a plurality of windows are respectively formed in the upper portion and the lower portion of the chimney, a plurality of air-cooled condensers are symmetrically arranged on the periphery of the chimney, smoke leading-out interfaces are arranged on the air-cooled condensers and butted with the lower portion windows, smoke returning interfaces are arranged on the air-cooled condensers and butted with the upper portion windows, tangential rotational flow guide plates are installed at the outlet ends of the smoke returning interfaces, finned tubes are arranged in the air-cooled condensers, and smoke flows through the finned tubes; the upper part of the air-cooled condenser is provided with a fan, the upper outlet of the fan is connected with a warm air chamber, and the upper part of the warm air chamber is provided with a warm air cylinder. The invention has the beneficial effects that: the device has small size, light weight, no auxiliary system, simple engineering installation, good whitening effect, low investment and low operating cost.
Description
Technical Field
The invention relates to a smoke whitening technology, in particular to a condensation warm air chimney external mixed smoke whitening system.
Technical Field
After being sprayed and purified, the smoke or other waste gas is changed into saturated wet smoke, carries a large amount of water vapor, is discharged from a chimney and condensed when meeting cold, forms white steam, and seriously pollutes the visual environment. Meanwhile, the wet flue gas also carries non-removed PM2.5 particles such as slurry drops, dust, aerosol and the like, and is a pollution to the atmosphere. If the wet flue gas can be condensed before being discharged, white smoke plume of a chimney can be eliminated, the discharge of PM2.5 such as slurry drops, dust, aerosol and the like can be further reduced, and a large amount of condensed water is recycled, so that the method is a first choice measure for deeply treating the air pollution.
The currently adopted flue gas condensation and white elimination technology is that water-cooled flue gas condensers are arranged on the front flue and the rear flue of an electric demister. The water-cooling condensation is to absorb heat in the condenser by circulating water and then to carry out air-cooling heat release in the cooling tower, so a circulating pump and the cooling tower need to be configured, the system is complex and occupies more land. The more serious problem is that the white steam of the cooling tower is obvious in winter, which is equivalent to transferring the white steam of a chimney to the cooling tower, and the visual environment is not improved. There are also a few high tower exhaust flue gas purification systems that use air cooled condensers and steam heaters for wet flue gas whitening, but the devices are too large and the engineering cost is also very high. The main reason is that the prior air-cooled condenser adopts a light pipe condensation technology, has poor heat transfer performance and small heat transfer area per unit volume, so the prior air-cooled condenser has huge equipment, difficult installation, large investment and difficult popularization.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the system for eliminating the white smoke of the mixed smoke outside the condensation warm air chimney, which has good white smoke eliminating effect, can greatly reduce the volume and the weight of a condenser, does not need additional steam heating, has less investment and is simple and convenient in engineering implementation.
Therefore, the invention adopts the following technical scheme: the condensation warm air chimney external mixed smoke white elimination system comprises a chimney and is characterized in that the chimney is partitioned by a chimney partition plate, a plurality of windows are respectively formed in the upper portion and the lower portion of the chimney, a plurality of air-cooled condensers are symmetrically arranged on the periphery of the chimney, a smoke leading-out interface is arranged on each air-cooled condenser and butted with the lower window, a smoke returning interface is arranged on each air-cooled condenser and butted with the upper window, a guide plate with tangential rotational flow is mounted at the outlet end of each smoke returning interface, finned tubes are arranged in the air-cooled condensers, and smoke flows through the finned; the upper part of the air-cooled condenser is provided with a fan, the upper outlet of the fan is connected with a warm air chamber, and the upper part of the warm air chamber is provided with a warm air cylinder.
The chimney is separated by a chimney partition plate, and the flue gas sequentially enters the lower tube bundle of the air cooler and the upper heat exchange tube bundle of the air cooler through the flue gas leading-out interface, flows in the tubes and is cooled and condensed. The flue gas passes through the demister for demisting, returns to the interface and the guide plate from the flue gas, tangentially enters the chimney from the upper surface of the chimney partition plate, and forms a rotational flow effect. The air cooler bottom is open, and through the suction of fan, cold air gets into the air cooler from below, and the outside heat absorption of finned tube group heaies up, gets into warm dryer through warm braw room. The warm air and the smoke are quickly mixed to achieve the aim of eliminating the white.
Preferably, a swirl ring is installed inside the outlet of the warm air cylinder, so that the swirl direction of the warm air is opposite to the swirl direction of the flue gas. The inner side of the top of the warm air cylinder is provided with a rotational flow ring, and warm air at the inner side is discharged into the atmosphere in a rotational flow manner; the outside warm air is discharged into the atmosphere. The warm air of the rotational flow ring is in a rotational flow direction opposite to the smoke so as to be rapidly mixed with the smoke, and the purpose of rapidly eliminating white is achieved.
Preferably, the air-cooled condenser is a stainless steel-aluminum finned tube bundle heat exchanger, and the flue gas is led in the pipe and the air is led out of the pipe. The air-cooled condenser can be a double return stroke or a single return stroke.
Preferably, the flue gas guide plate is of a equidirectional baffle structure, so that tangential rotational flow is formed.
Preferably, a demister is arranged in the flue gas return interface, and a drainage pipeline is further arranged on the air-cooled condenser.
Preferably, the upper and lower flows of the air-cooled condenser are connected by a turn cover.
Preferably, the air coolers are arranged around the chimney and are symmetrically arranged, and the number of the air coolers is 4.
The invention has the beneficial effects that: the device has small size, light weight, no auxiliary system, simple engineering installation, good whitening effect, low investment and low operating cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
In the drawings: 1. the system comprises a chimney 2, a rotational flow ring 3, a warm air cylinder 4, a warm air chamber 5, a fan 6, an air cooling condenser 7, a drain pipe 8, a chimney partition plate 9, a guide plate 10, a flue gas leading-out interface 11, a steering cover 12, a demister 13 and a flue gas returning interface.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-2, the invention is composed of a chimney 1, a cyclone ring 2, a warm air cylinder 3, a warm air chamber 4, a fan 5, an air-cooled condenser 6, a drain pipe 7, a chimney partition plate 8, a guide plate 9, a flue gas leading-out interface 10, a steering cover 11, a demister 12 and a flue gas returning interface 13.
The chimney 1 is separated by a chimney partition plate 8, 4 windows are respectively arranged at the upper part and the lower part, and the chimney partition plate is respectively connected with a smoke leading-out interface 10, a smoke returning interface 13 and an air-cooled condenser 6. 4 air-cooled condensers 6 are symmetrically arranged, stainless steel-aluminum finned tubes are used as heat exchange elements, and the upper flow and the lower flow are connected through a steering cover 11.
The flue gas flows in the pipe of the air cooler 6 for condensation, and condensed water is separated by the demister 12. The outlet end of the smoke return interface 13 is provided with a guide plate 9 with tangential rotational flow. The condensed water is discharged out of the device through a water discharge pipe 7. Cold air is sucked from the bottom opening of the air cooler 6 by the fan 5, and enters the warm air chamber 4 and the warm air cylinder 3 in sequence after being heated. The inner side of the outlet of the warm air cylinder 3 is provided with a cyclone ring 2, and the outer side is provided with direct current.
When the device works, wet flue gas is led out from a window at the lower part of a chimney partition plate 8 of a chimney 1, enters a flue gas leading-out interface 10, sequentially flows through a tube bundle at the lower part of an air cooler 6, a steering chamber 11, a tube bundle at the upper part of the air cooler 6 and a demister 12, and after condensed water is separated, the condensed water tangentially enters the chimney 1 through a guide plate 9 to form rotational flow jet flow.
And cold air enters from the bottom opening of the air cooler 6 through the suction of the fan 5, flows outside the fin tube, enters the warm air chamber 4 after being heated and then enters the warm air barrel 3. Part of the warm air at the inner side of the warm air cylinder 3 passes through the rotational flow ring to become rotational air flow, and the rotational direction is opposite to the smoke so as to strengthen the mixing of the smoke and the warm air. The warm air outside the warm air cylinder flows out in a direct current mode. After the warm air jet flow and the flue gas jet flow are mixed, the temperature is higher than the saturation temperature under the concentration, the flue gas can not be condensed, and the aim of white elimination is achieved.
The invention makes the condensed smoke and warm air mix outside the chimney to eliminate the white, the device is small, the weight is light, the matching system is not needed, the engineering construction is simple, the invention is especially suitable for eliminating the white of the smoke exhausted by the high tower, the white eliminating effect is good, and the investment and the operation cost are low.
The above-mentioned embodiments are merely examples of the present invention, and the present invention is not limited to the above-mentioned embodiments, and many similar structural variations can be made. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (5)
1. The condensation warm air chimney external mixed smoke white elimination system comprises a chimney and is characterized in that the chimney is partitioned by a chimney partition plate, a plurality of windows are respectively formed in the upper portion and the lower portion of the chimney, a plurality of air-cooled condensers are symmetrically arranged on the periphery of the chimney, a smoke leading-out interface is arranged on each air-cooled condenser and butted with the lower window, a smoke returning interface is arranged on each air-cooled condenser and butted with the upper window, a guide plate with tangential rotational flow is mounted at the outlet end of each smoke returning interface, finned tubes are arranged in the air-cooled condensers, and smoke flows through the finned; the upper part of the air-cooled condenser is provided with a fan, the upper outlet of the fan is connected with a warm air chamber, and the upper part of the warm air chamber is provided with a warm air cylinder.
2. The system for eliminating white smoke of mixed smoke outside a condensation warm air chimney according to claim 1, characterized in that a swirl ring is installed inside an outlet of the warm air barrel to make a swirl direction of warm air opposite to a swirl direction of smoke.
3. The system according to claim 1, wherein the air-cooled condenser is a stainless steel-aluminum finned tube bundle heat exchanger, and the flue gas is flowing inside the pipe and the air is flowing outside the pipe.
4. The system according to claim 1, wherein the flue gas deflector is of a co-directional deflector structure to form a tangential swirl flow.
5. The system according to claim 1, wherein the air coolers are arranged around the chimney symmetrically in 4 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781612.4A CN111991979B (en) | 2020-08-06 | 2020-08-06 | System for eliminating white smoke by mixing outside condensation warm air chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781612.4A CN111991979B (en) | 2020-08-06 | 2020-08-06 | System for eliminating white smoke by mixing outside condensation warm air chimney |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111991979A true CN111991979A (en) | 2020-11-27 |
| CN111991979B CN111991979B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010781612.4A Active CN111991979B (en) | 2020-08-06 | 2020-08-06 | System for eliminating white smoke by mixing outside condensation warm air chimney |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05200248A (en) * | 1992-01-27 | 1993-08-10 | Ishikawajima Harima Heavy Ind Co Ltd | Method for preventing generation of white smoke and mist |
| CN108434924A (en) * | 2018-06-07 | 2018-08-24 | 北京国能中电节能环保技术股份有限公司 | A kind of flue gas eliminating white smoke system and method |
| CN108465341A (en) * | 2018-05-22 | 2018-08-31 | 浙江鼎诚环保科技有限公司 | A kind of hyperbola gravity-flow ventilation condensation water lift eliminating white smoke integrated apparatus |
| CN208090710U (en) * | 2018-04-10 | 2018-11-13 | 西安西热锅炉环保工程有限公司 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
| CN109289430A (en) * | 2018-11-07 | 2019-02-01 | 南京龙源环保有限公司 | A kind of dry-wet-coupled integrated fume disappears bletilla dust-extraction unit |
| CN109865405A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | The dehumidifying of natural gas flue gas disappears white device |
| CN210964548U (en) * | 2019-10-28 | 2020-07-10 | 秦皇岛中青冶金阀门有限公司 | Flue gas condensation, white elimination and demisting device |
-
2020
- 2020-08-06 CN CN202010781612.4A patent/CN111991979B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05200248A (en) * | 1992-01-27 | 1993-08-10 | Ishikawajima Harima Heavy Ind Co Ltd | Method for preventing generation of white smoke and mist |
| CN109865405A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | The dehumidifying of natural gas flue gas disappears white device |
| CN208090710U (en) * | 2018-04-10 | 2018-11-13 | 西安西热锅炉环保工程有限公司 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
| CN108465341A (en) * | 2018-05-22 | 2018-08-31 | 浙江鼎诚环保科技有限公司 | A kind of hyperbola gravity-flow ventilation condensation water lift eliminating white smoke integrated apparatus |
| CN108434924A (en) * | 2018-06-07 | 2018-08-24 | 北京国能中电节能环保技术股份有限公司 | A kind of flue gas eliminating white smoke system and method |
| CN109289430A (en) * | 2018-11-07 | 2019-02-01 | 南京龙源环保有限公司 | A kind of dry-wet-coupled integrated fume disappears bletilla dust-extraction unit |
| CN210964548U (en) * | 2019-10-28 | 2020-07-10 | 秦皇岛中青冶金阀门有限公司 | Flue gas condensation, white elimination and demisting device |
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| CN111991979B (en) | 2022-05-17 |
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