CN116042939A - Anti-icing device suitable for chimney top - Google Patents
Anti-icing device suitable for chimney top Download PDFInfo
- Publication number
- CN116042939A CN116042939A CN202211702851.1A CN202211702851A CN116042939A CN 116042939 A CN116042939 A CN 116042939A CN 202211702851 A CN202211702851 A CN 202211702851A CN 116042939 A CN116042939 A CN 116042939A
- Authority
- CN
- China
- Prior art keywords
- chimney
- water
- inclined side
- water collecting
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 19
- 239000003546 flue gas Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000000779 smoke Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/002—Evacuating and treating of exhaust gases
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses an anti-icing device suitable for the top of a chimney, which comprises a wind shield, a water collecting plate and a chimney which are connected from top to bottom; the water collecting plate comprises a vertical side and an inclined side, the lower end of the vertical side is connected with the outer edge of the upper end of the inclined side, and the outer edge of the lower end of the inclined side is connected with the top of the chimney to form a water collecting side; the top of the chimney is also provided with a water return hole at the position of the water collecting side. According to the invention, the wind guard is arranged on the periphery of the top of the chimney, so that disturbance of external wind to the outlet flue gas can be reduced, the flow direction of the flue gas at the top of the chimney is improved, and entrainment of condensed water in the outlet flue gas is effectively reduced. Meanwhile, the water baffle plates are arranged on the periphery of the top of the chimney and the top edge of the cylindrical water collecting plate, and the water return holes are arranged on the periphery of the top of the chimney, so that water drops entrained in smoke in the outlet area of the chimney can be effectively intercepted, liquid water carried by the smoke can be ingeniously recycled into the chimney, the liquid water circulation is realized, and the purpose of preventing the chimney from icing is achieved.
Description
Technical Field
The invention relates to the technical field of anti-icing devices of blast furnace chimneys, in particular to an anti-icing device suitable for the top of a chimney.
Background
The clean flue gas after desulfurization of the wet desulfurization system usually carries water drops and water vapor with a certain content, and the working efficiency is reduced along with the increase of the operation time of the demister, and the content of the water drops and the water vapor carried by the clean flue gas is also increased. The wet desulfurization of the clean flue gas is characterized in that the flue gas in the cold area can be condensed to form ice at the top of the chimney due to the too high humidity of the top area of the chimney. The top of the chimney is frozen, so that the safety of the structure of the chimney is seriously affected, and the risk of falling off is high, and great potential safety hazards are brought to maintenance staff and equipment at the lower part of the chimney.
At present, the anti-icing device at the top of the chimney mainly comprises: 1. a heating heat tracing device is additionally arranged at the top of the chimney; 2. the structural design of the top of the chimney is changed. The first type of the method is that a heating pipeline is often required to be erected on the top of a chimney, although the anti-icing effect is good; the chimney is generally 180-250 m, and has the problems of high energy consumption, inconvenient construction, high operation and maintenance cost, short service life and the like. The second structure is simpler, the overhaul and maintenance cost is lower, and the icing of the top of the chimney can be slowed down to a certain extent, but the problem of the icing of the chimney in cold areas can not be thoroughly solved fundamentally.
Accordingly, there is a need for a device that does not require additional heating heat tracing and that effectively inhibits stack icing.
Disclosure of Invention
According to the anti-icing device, the flow rate of flue gas at the outlet of the chimney is reduced, the wind shield is arranged at the upper air opening, the water baffle is arranged at the edge of the top of the device, and the recycling water tank is arranged outside the device, so that liquid water carried by the flue gas is skillfully recycled into the chimney. The device has the advantages of simple structure, low manufacturing cost and convenient overhaul and maintenance, can fully utilize the self heat of the flue gas, does not need to increase extra energy consumption, and successfully solves the problem of freezing of the chimney at the top of the chimney in the cold region.
In order to achieve the above purpose, the invention provides an anti-icing device suitable for the top of a chimney, comprising a wind shield, a water collecting plate and the chimney which are connected from top to bottom;
the water collecting plate comprises a vertical side and an inclined side, the lower end of the vertical side is connected with the outer edge of the upper end of the inclined side, and the outer edge of the lower end of the inclined side is connected with the top of the chimney to form a water collecting side;
the top of the chimney is also provided with a water return hole at the position of the water collecting side.
Further, the inclined side is arranged with high outside and low inside, and the inclined gradient is 30-60 degrees;
the length of the inclined side is 1-3m.
Further, the water return hole is positioned at a position 5-10cm above the connection position of the top of the chimney and the outer edge of the lower end of the inclined side.
Further, the backwater hole is a circular hole with the diameter of 3-5 cm.
Further, the height of the wind shield is 0.3-2m.
Further, the height of the vertical side is 0.2-1m.
Further, the top end of the vertical side is also provided with a first water baffle;
the width of the first water baffle is 5-10cm.
Further, the top end of the chimney is also provided with a second water baffle;
the width of the second water baffle is 5-10cm.
Further, H-shaped steel is fixed below the connection position of the outer edge of the lower end of the inclined side and the top of the chimney;
the H-shaped steel is connected with the inclined side and used for fixing the inclined side.
Further, the wind deflector comprises a windward side and a leeward side, and the windward side and the leeward side are gradually and gently connected.
Compared with the prior art, the invention has the following beneficial effects:
according to the anti-icing device, the water collecting plate and the wind shield are arranged on the periphery of the top of the chimney, so that the flow speed of outlet flue gas can be reduced, the wind shield is arranged in the range of 180 DEG of the annual dominant wind direction at the top of the chimney, the disturbance of external wind to the outlet flue gas can be reduced, the flow direction of the flue gas at the top of the chimney is improved, and the entrainment of condensed water in the outlet flue gas is effectively reduced. Meanwhile, the water baffle plates are arranged on the periphery of the top of the chimney and the top edge of the cylindrical water collecting plate, and the water return holes are arranged on the periphery of the top of the chimney, so that water drops entrained in smoke in the outlet area of the chimney can be effectively intercepted, liquid water carried by the smoke can be ingeniously recycled into the chimney, the liquid water circulation is realized, and the purpose of preventing the chimney from icing is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and other advantages of the invention may be realized and attained by the apparatus particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic front sectional view of an anti-icing device for a chimney roof according to an embodiment of the invention.
FIG. 2 shows a schematic top cross-sectional view of an anti-icing assembly for a chimney roof according to a preferred embodiment of the present invention;
reference numerals illustrate:
1. a wind deflector; 2-1, vertical side; 2-2, inclined sides; 3-1, a second water baffle; 3-2, a first water baffle; 4. a water return hole; 5. h-shaped steel; 6. and (5) a chimney.
Detailed Description
The following description of specific embodiments of the present invention and the accompanying drawings will provide a clear and complete description of the technical solutions of embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, in one embodiment of the present invention, there is provided an anti-icing device for a chimney roof, comprising a wind deflector 1, a water collecting plate and a chimney 6 connected from top to bottom; the height of the wind deflector 1 is 0.3-2m, the wind deflector 1 comprises a windward side and a leeward side, the windward side and the leeward side are gradually and gently connected, wherein the windward side is arranged in a range of 180 degrees of the annual dominant wind direction, and the height of the windward side is 0.3-2m; the water collecting plate comprises a vertical side 2-1 and an inclined side 2-2, wherein the lower end of the vertical side 2-1 is connected with the outer edge of the upper end of the inclined side 2-2, the height of the vertical side 2-1 is 0.2-1m, the top end of the vertical side 2-1 is also provided with a first water baffle 3-2, the first water baffle 3-2 is vertically arranged with the top end of the vertical side 2-1, the width of the first water baffle 3-2 is 5-10cm, the outer edge of the lower end of the inclined side 2-2 is connected with the top of the chimney 6 to form a water collecting side, the inclined side 2-2 is arranged at high and low, and the inclined gradient is 30-60 degrees; the length of the inclined side 2-2 is 1-3m; the top of the chimney 6 is also provided with a water return hole 4 at the position of the water collecting side, the water return hole 4 is positioned at the position 5-10cm above the connection position of the top of the chimney 6 and the outer edge of the lower end of the inclined side 2-2, and the water return holes 4 are arranged in an array at the same height along the top of the chimney 6. The top end of the chimney 6 is also provided with a second water baffle 3-1, the second water baffle 3-1 is perpendicular to the top end of the chimney 6, and the width of the second water baffle 3-1 is 5-10cm. An H-shaped steel 5 is also fixed below the connection position of the outer edge of the lower end of the inclined side 2-2 and the top of the chimney 6; the H-shaped steel 5 is connected with the inclined side 2-2 and used for fixing the inclined side 2-2.
In this embodiment, the windward side, the leeward side, the vertical side 2-1, the inclined side 2-2, the first water baffle 3-2 and the second water baffle 3-1 are all made of stainless steel, and the connection/fixing modes of the windward side, the leeward side, the vertical side 2-1, the inclined side 2-2, the H-shaped steel 5, the first water baffle 3-2 and the second water baffle 3-1 are all formed by welding.
In a preferred embodiment of the present invention, as shown in fig. 2, the structures of the wind deflector 1 and the water collecting plate in the anti-icing device suitable for the top of the chimney are cylindrical, the vertical side 2-1, the inclined side 2-2 and the chimney 6 form a water collecting part of an annular structure, the water return holes 4 are circular holes with the diameter of 3 cm to 5cm, and the water return holes 4 are arranged in an array at the same height along the top of the chimney 6 for one circle. The top end of the vertical side 2-1 is also provided with a first water baffle 3-2, and the first water baffle 3-2 is provided with a circle along the top end of the vertical side 2-1; the second water deflector 3-1 at the top end of the chimney 6 is arranged along the top end of the chimney 6.
The anti-icing device suitable for the top of the chimney is used for the demonstration project of zero emission of coal, electricity and aluminum smoke pollutants of a certain power plant in northern cold areas, successfully solves the problem of icing at the top of the chimney, works well, and does not generate icing during winter operation. The anti-icing device has the advantages of simple structure, low manufacturing cost and convenient overhaul and maintenance, can fully utilize the self heat of the flue gas, does not need to increase extra energy consumption, and successfully solves the difficult problem of icing at the top of a chimney in the northern cold region.
In summary, according to the anti-icing device suitable for the top of the chimney, the water collecting plate and the wind shield are arranged on the periphery of the top of the chimney, so that the flow rate of outlet flue gas can be slowed down, the wind shield is arranged in the range of 180 DEG of the annual dominant wind direction at the top of the chimney, the disturbance of external wind to the outlet flue gas can be reduced, the flow direction of the flue gas at the top of the chimney is improved, and the entrainment of condensed water in the outlet flue gas is effectively reduced. Meanwhile, the water baffle plates are arranged on the periphery of the top of the chimney and the top edge of the cylindrical water collecting plate, and the water return holes are arranged on the periphery of the top of the chimney, so that water drops entrained in smoke in the outlet area of the chimney can be effectively intercepted, liquid water carried by the smoke can be ingeniously recycled into the chimney, the liquid water circulation is realized, and the purpose of preventing the chimney from icing is achieved.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. An anti-icing device suitable for the top of a chimney is characterized by comprising a wind deflector (1), a water collecting plate and a chimney (6) which are connected from top to bottom;
the water collecting plate comprises a vertical side (2-1) and an inclined side (2-2), wherein the lower end of the vertical side (2-1) is connected with the outer edge of the upper end of the inclined side (2-2), and the outer edge of the lower end of the inclined side (2-2) is connected with the top of the chimney (6) to form a water collecting side;
the top of the chimney (6) is also provided with a water return hole (4) at the position of the water collecting side.
2. The device according to claim 1, characterized in that the inclined side (2-2) is arranged with an outer high and an inner low, with an inclination of 30-60 °;
the length of the inclined side (2-2) is 1-3m.
3. The device according to claim 1, characterized in that the water return hole (4) is located 5-10cm above the connection of the top of the chimney (6) to the lower outer edge of the inclined side (2-2).
4. The device according to claim 1, characterized in that the return water hole (4) is a circular hole with a diameter of 3-5 cm.
5. Device according to claim 1, characterized in that the height of the wind deflector (1) is 0.3-2m.
6. The device according to claim 1, characterized in that the height of the vertical side (2-1) is 0.2-1m.
7. The device according to claim 1, characterized in that the top end of the vertical side (2-1) is also provided with a first water deflector (3-2);
the width of the first water baffle (3-2) is 5-10cm.
8. The device according to claim 1, characterized in that the top end of the chimney (6) is also provided with a second water deflector (3-1);
the width of the second water baffle (3-1) is 5-10cm.
9. The device according to claim 1, characterized in that an H-section steel (5) is also fixed below the connection location of the lower outer edge of the inclined side (2-2) with the top of the chimney (6);
the H-shaped steel (5) is connected with the inclined side (2-2) and is used for fixing the inclined side (2-2).
10. The device according to any one of claims 1-9, wherein the wind deflector (1) comprises a windward side and a leeward side, which are gradually gently connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211702851.1A CN116042939A (en) | 2022-12-28 | 2022-12-28 | Anti-icing device suitable for chimney top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211702851.1A CN116042939A (en) | 2022-12-28 | 2022-12-28 | Anti-icing device suitable for chimney top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116042939A true CN116042939A (en) | 2023-05-02 |
Family
ID=86132424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211702851.1A Pending CN116042939A (en) | 2022-12-28 | 2022-12-28 | Anti-icing device suitable for chimney top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116042939A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB335886A (en) * | 1929-06-27 | 1930-09-29 | George Middleton Grieve | Improved chimney top for the prevention of down draught |
| BE891918A (en) * | 1981-01-28 | 1982-07-28 | Lindquist Finn | DRAAIBARE SCHOORSTEENKAP |
| CN202605966U (en) * | 2012-04-23 | 2012-12-19 | 江苏亿金环保科技股份有限公司 | Gypsum rain preventing device for chimney top of wet desulfurization equipment |
| CN105923133A (en) * | 2016-05-11 | 2016-09-07 | 广船国际有限公司 | Water cannon preventing assembly for ship chimney |
| CN207394889U (en) * | 2017-09-05 | 2018-05-22 | 上海超惠通风环保设备有限公司 | A kind of high efficiente callback device of chimney with water |
-
2022
- 2022-12-28 CN CN202211702851.1A patent/CN116042939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB335886A (en) * | 1929-06-27 | 1930-09-29 | George Middleton Grieve | Improved chimney top for the prevention of down draught |
| BE891918A (en) * | 1981-01-28 | 1982-07-28 | Lindquist Finn | DRAAIBARE SCHOORSTEENKAP |
| CN202605966U (en) * | 2012-04-23 | 2012-12-19 | 江苏亿金环保科技股份有限公司 | Gypsum rain preventing device for chimney top of wet desulfurization equipment |
| CN105923133A (en) * | 2016-05-11 | 2016-09-07 | 广船国际有限公司 | Water cannon preventing assembly for ship chimney |
| CN207394889U (en) * | 2017-09-05 | 2018-05-22 | 上海超惠通风环保设备有限公司 | A kind of high efficiente callback device of chimney with water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102052857B (en) | Natural ventilation air-cooling condenser | |
| CN106765826B (en) | Emission reduction environment-friendly roof ventilator | |
| CN201787827U (en) | Natural ventilation air cooling condenser | |
| CN205288078U (en) | Flue gas thick liquid distributes again sprays desulfurization dust collector | |
| CN116042939A (en) | Anti-icing device suitable for chimney top | |
| CN101890251A (en) | High-temperature smoke dehumidifying device | |
| CN210089439U (en) | Cooling tower for petroleum coke production | |
| CN217110519U (en) | Kiln exhaust chimney | |
| CN111271983A (en) | Induced draft type auxiliary ventilation direct air cooling system | |
| CN204214139U (en) | A kind of condensed type combustion gas flue gas waste heat recovery apparatus | |
| CN209362713U (en) | A kind of top electro-magnetic vibrator electric precipitator rapping shaft insulation water-tight device | |
| CN103697485B (en) | Chimney overhead receives row's condensate liquid filter bowl device | |
| CN219713399U (en) | Anti-icing device at top of chimney | |
| CN205517040U (en) | Boiler desulfurization dust collector | |
| CN201926327U (en) | Device for improving energy efficiency of mechanical ventilation direct air-cooling condenser | |
| CN212030262U (en) | Induced draft type auxiliary ventilation direct air cooling system | |
| CN112696939A (en) | Environment-friendly condensation, dehumidification and whitening device suitable for blast furnace slag flushing and wet desulphurization system | |
| CN203642775U (en) | Humidifying and cooling tower with environmental wind diversion devices | |
| CN110736358A (en) | mixed ventilation three-tower-combined technology | |
| CN216295719U (en) | Condensing device for recovering moisture in flue gas | |
| CN106765240B (en) | Device for washing down smoke-proof feather of chimney | |
| CN206191158U (en) | Formula of relying on oneself pipe cap and formula pipe cap mounting structure that relies on oneself | |
| CN217092862U (en) | Desulfurizing tower with annular porous synergistic device | |
| CN214209943U (en) | Cyclone type gypsum rain removing device | |
| CN210345511U (en) | MGGH system for eliminating white smoke of thermal power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |