CN104406182B - Thermal insulating layer heating and pressurizing corrosion-resistant chimney - Google Patents
Thermal insulating layer heating and pressurizing corrosion-resistant chimney Download PDFInfo
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- CN104406182B CN104406182B CN201410680975.3A CN201410680975A CN104406182B CN 104406182 B CN104406182 B CN 104406182B CN 201410680975 A CN201410680975 A CN 201410680975A CN 104406182 B CN104406182 B CN 104406182B
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- thermal insulation
- insulation layer
- outer tube
- thermal insulating
- chimney
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Abstract
The invention discloses a thermal insulating layer heating and pressurizing corrosion-resistant chimney. The chimney comprises an outer cylinder, wherein corbels are arranged on the inner surface of the outer cylinder along the vertical direction; the outer cylinder is partitioned into a plurality of unit segments by the corbels; the inner surface of each unit segment of the outer cylinder is provided with a lining; thermal insulating layers are arranged between the outer cylinder and the linings; the thermal insulating layers are communicated with one another; inflating equipment, a flow controller and a temperature controller are provided; the inflating equipment is connected with the flow controller; the flow controller is connected with the temperature controller; the temperature controller is communicated with the thermal insulating layers; the gas temperature in the thermal insulating layers is higher than 30 DEG C; the pressures in the thermal insulating layers are P1; the maximum pressure of flue gas is P2; P1 is greater than or equal to P2. By adopting the chimney, the pressures in the thermal insulating layers are greater than or equal to the flue gas pressure, and the temperature of gas in the thermal insulating layers is kept over 30 DEG C, so that the phenomenon of condensation is avoided, the aim of preventing corrosion and leakage of the outer cylinder of the chimney is fulfilled, and the service life is long.
Description
Technical field
The present invention relates to smoke evacuation system and in particular to a kind of thermal insulation layer heating, pressurising Anti-corrosive chimney.
Background technology
After wet de- method desulfurization, smoke moisture increases, and temperature reduces, and the liner of chimney easily causes corrosion, or even partly wet
Flue gas enters thermal insulation layer by the gap of interior lining, hole, causes outer tube corrosion or seepage, thus affecting the use longevity of chimney
Life.At present, the etching problem of chimney is mainly improved in terms of build process and inner lining material, but, either optimize
Liner build process, still uses densification instead, the inner lining material of antiseepage is all difficult to completely isolated for wet flue gas it is impossible to fundamentally solve
The certainly problem of chimney outer tube corrosion leakage.
Content of the invention
The technical problem to be solved is to overcome the shortcomings of above-mentioned background technology, provide a kind of anti-corrosion leak-proof to leak,
The thermal insulation layer heating of long service life, pressurising Anti-corrosive chimney.
The present invention solves its technical problem and employed technical scheme comprise that, a kind of thermal insulation layer heating, pressurising Anti-corrosive chimney, including
Outer tube, the vertical direction of described outer tube inner surface is provided with bracket, and outer tube is divided into multiple elementary sections by each bracket of vertical direction,
The inner surface of each elementary section of described outer tube is provided with liner, is equipped with thermal insulation layer between described outer tube and each liner, heat-insulated
It is interconnected between layer, be additionally provided with charger, flow controller and temperature controller, described charger and flow controller
Be connected, described flow controller is connected with temperature controller, and described temperature controller is connected with thermal insulation layer, described charger to
Insufflation gas in thermal insulation layer, described heat-insulated in the layer gas temperature is higher than 30 DEG C；Described heat-insulated in the layer pressure is p1, described interior
Lining inner side is flue gas, and the maximum pressure of flue gas is p2, p1 >=p2.
Further, it is provided with blast pipe in the outer wall of described outer tube or thermal insulation layer, blast pipe is connected with thermal insulation layer.
Further, described temperature controller is connected with the thermal insulation layer of bottom by pipeline, logical between adjacent thermal insulation layer
Piping or punching connection.
Further, it is provided with air inlet pipe in the outer wall of described outer tube or thermal insulation layer, described temperature controller is connected with air inlet pipe,
Each thermal insulation layer is connected with air inlet pipe by pipeline respectively.
Further, described heat-insulated in the layer pressure p 1=1.1～1.5 p2.
Compared with prior art, advantages of the present invention is as follows:
By improving thermal insulation layer space pressure, heat-insulated in the layer pressure is made to be more than or equal to chimney inside smoke pressure, cigarette
Flue gas within chimney inverse pressure cannot enter into thermal insulation layer；The temperature simultaneously making gas in thermal insulation layer is maintained at more than 30 DEG C, it is to avoid
In thermal insulation layer, condensation occurs, thus protection is become to outer cylindrical, reach the purpose of outer tube anti-corrosion leak-proof leakage, improve making of chimney
Use the life-span.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is Fig. 1, the schematic diagram of liner pressure shown in 2.
In figure: 1 flow controller, 2 outer tube, 3 thermal insulation layers, 4 liners, 5 temperature controllers, 6 blast pipes,
7 air inlet pipe, 2-1 bracket.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
With reference to Fig. 1, the present embodiment includes outer tube 2, and described outer tube 2 is armored concrete outer tube, described outer tube 2 inner surface
Vertical direction is provided with bracket 2-1, and outer tube 2 is divided into multiple elementary sections by each bracket 2-1 of vertical direction, described outer tube 2 every
The inner surface of individual elementary section is provided with liner 4, is equipped with thermal insulation layer 3 between described outer tube 2 and each liner 4, adjacent thermal insulation layer 3
Between pass through pipeline communication, the thickness of thermal insulation layer 3 is 5cm, is additionally provided with charger, flow controller 1 and temperature controller 5,
Described charger is connected with flow controller 1, and described flow controller 1 is connected with temperature controller 5, described temperature controller
5 are connected with the thermal insulation layer 3 of bottom, and described charger is to insufflation gas in thermal insulation layer 3, the gas temperature in described thermal insulation layer 3
Spend for 40 DEG C, described gas is air；With reference to Fig. 3, the pressure in described thermal insulation layer 3 is p1, and described liner 4 inner side is flue gas,
The maximum pressure of flue gas is p2, p1=1.1 p2；The outer wall of described outer tube 2 is provided with blast pipe 6, and blast pipe 6 is connected with thermal insulation layer 3.
Cryogenic gas in thermal insulation layer 3 can be discharged by blast pipe 6 in time, be filled with high-temperature gas simultaneously, so that the gas in thermal insulation layer 3 is kept
More than 30 DEG C.
Embodiment 2
With reference to Fig. 2, the present embodiment is only that with the difference of embodiment 1: the outer wall of outer tube 2 is provided with air inlet pipe 7, described temperature
Controller 5 is connected with air inlet pipe 7, and each thermal insulation layer 3 is connected with air inlet pipe 7 by pipeline respectively；The thickness of thermal insulation layer 3 is 8cm, every
Gas temperature in thermosphere 3 is 50 DEG C, and the pressure in thermal insulation layer 3 is p1=1.3 p2.Remaining is with embodiment 1.
Embodiment 3
The present embodiment is only that with the difference of embodiment 1: connected by punching between adjacent thermal insulation layer 3, thermal insulation layer 3
Thickness is 10cm, and the gas temperature in thermal insulation layer 3 is 60 DEG C, and the pressure in thermal insulation layer 3 is p1=1.5 p2；Blast pipe 6 be located at every
In thermosphere 3.Remaining is with embodiment 1.
Embodiment 4
The present embodiment is only that with the difference of embodiment 2: air inlet pipe 7 is located in thermal insulation layer 3.Remaining is with embodiment 2.
Flow controller 1 is used for adjusting the flow velocity entering gas in thermal insulation layer 3, thus adjusting the pressure in thermal insulation layer 3, makes
The maximum pressure p2 of the pressure p 1 >=flue gas in thermal insulation layer 3.The present invention utilizes the principle that gas can not dissipate against companding, makes liner
The flue gas of 4 inner sides can not enter thermal insulation layer 3 by liner 4.
The gas being filled with thermal insulation layer 3 contains a certain amount of steam, occurs when the gas containing steam is below 30 DEG C
Condensation, forms water droplet in thermal insulation layer 3, condenses in outer tube 2 inner surface, the water of outer tube 2 inner surface is combined with air, can be right
Outer tube 2 causes to corrode.Temperature controller 5 is used for adjusting the temperature entering gas in thermal insulation layer 3, makes the temperature of gas in thermal insulation layer 3
Degree is maintained at more than 30 DEG C, thus be prevented effectively to cause to corrode, realizes the purpose of the outer tube 2 anti-corrosion leak-proof leakage of chimney to outer tube 2.
The present invention can be connected to flue with arc flue, tangential flue or ordinary straight.Cost of investment of the present invention is little, environmental protection
Effect is good.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these modifications and change
Within the scope of the claims in the present invention and its equivalent technologies, then these modifications and modification are also in protection scope of the present invention for type
Within.
The prior art that the content not described in detail in specification is known to the skilled person.
Claims (4)
1. a kind of thermal insulation layer heating, pressurising Anti-corrosive chimney, including outer tube (2), the vertical direction of described outer tube (2) inner surface is provided with
Bracket (2-1), outer tube (2) is divided into multiple elementary sections by each bracket (2-1) of vertical direction, and each of described outer tube (2) is single
The inner surface of first section be provided with liner (4) it is characterised in that: be equipped with thermal insulation layer between described outer tube (2) and each liner (4)
(3), it is interconnected between thermal insulation layer (3), is additionally provided with charger, flow controller (1) and temperature controller (5), described fill
Gas equipment is connected with flow controller (1), and described flow controller (1) is connected with temperature controller (5), described temperature controller
(5) connect with thermal insulation layer (3), described charger is to the interior insufflation gas of thermal insulation layer (3), the gas temperature in described thermal insulation layer (3)
Degree is higher than 30 DEG C；Pressure in described thermal insulation layer (3) is p1, is flue gas inside described liner (4), and the maximum pressure of flue gas is
P2, p1 >=p2；It is provided with blast pipe (6), blast pipe (6) is with thermal insulation layer (3) even in the outer wall of described outer tube (2) or thermal insulation layer (3)
Logical.
2. thermal insulation layer as claimed in claim 1 heating, pressurising Anti-corrosive chimney it is characterised in that: described temperature controller (5) is led to
Piping is connected with the thermal insulation layer (3) of bottom, passes through pipeline or punching connection between adjacent thermal insulation layer (3).
3. thermal insulation layer as claimed in claim 1 heating, pressurising Anti-corrosive chimney it is characterised in that: the outer wall of described outer tube (2) or
It is provided with air inlet pipe (7), described temperature controller (5) is connected with air inlet pipe (7), and each thermal insulation layer (3) is passed through respectively in thermal insulation layer (3)
Pipeline is connected with air inlet pipe (7).
4. as described in one of claims 1 to 3 thermal insulation layer heating, pressurising Anti-corrosive chimney it is characterised in that: described thermal insulation layer
(3) pressure p 1=1.1～1.5 p2 in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410680975.3A CN104406182B (en) | 2014-11-25 | 2014-11-25 | Thermal insulating layer heating and pressurizing corrosion-resistant chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410680975.3A CN104406182B (en) | 2014-11-25 | 2014-11-25 | Thermal insulating layer heating and pressurizing corrosion-resistant chimney |
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| Publication Number | Publication Date |
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| CN104406182A CN104406182A (en) | 2015-03-11 |
| CN104406182B true CN104406182B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410680975.3A Active CN104406182B (en) | 2014-11-25 | 2014-11-25 | Thermal insulating layer heating and pressurizing corrosion-resistant chimney |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247365A (en) * | 2016-08-29 | 2016-12-21 | 江苏利保科技股份有限公司 | A kind of fiber glass reinforced plastic chimney reducing outlet flue |
| CN107860014B (en) * | 2017-09-28 | 2019-04-02 | 华电电力科学研究院 | A kind of method of power plant sleeve-type chimney control corrosion rate leakage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180013A (en) * | 1987-01-19 | 1988-07-25 | Ebara Infilco Co Ltd | Stack system |
| CN1786397A (en) * | 2005-12-14 | 2006-06-14 | 孙克勤 | Chimney with preventing flue permeating corrosion and its method |
| CN101886814A (en) * | 2010-07-07 | 2010-11-17 | 何洪滔 | Anticorrosion method of chimney used for discharging wet-method desulfurized fume |
| CN202221094U (en) * | 2011-08-29 | 2012-05-16 | 郑德明 | Corrosion-free, dust-collection and energy-saving chimney lining structure |
| CN204254643U (en) * | 2014-11-25 | 2015-04-08 | 湖南天通无腐烟囱工程有限公司 | Thermal insulation layer heating, pressurising Anti-corrosive chimney |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3096032B1 (en) * | 1999-06-25 | 2000-10-10 | 川崎重工業株式会社 | Smoke exhaust method using multi-tube chimney |
| JP3793956B2 (en) * | 1999-11-11 | 2006-07-05 | 清水建設株式会社 | Method and apparatus for cleaning chimneys and flues |
-
2014
- 2014-11-25 CN CN201410680975.3A patent/CN104406182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180013A (en) * | 1987-01-19 | 1988-07-25 | Ebara Infilco Co Ltd | Stack system |
| CN1786397A (en) * | 2005-12-14 | 2006-06-14 | 孙克勤 | Chimney with preventing flue permeating corrosion and its method |
| CN101886814A (en) * | 2010-07-07 | 2010-11-17 | 何洪滔 | Anticorrosion method of chimney used for discharging wet-method desulfurized fume |
| CN202221094U (en) * | 2011-08-29 | 2012-05-16 | 郑德明 | Corrosion-free, dust-collection and energy-saving chimney lining structure |
| CN204254643U (en) * | 2014-11-25 | 2015-04-08 | 湖南天通无腐烟囱工程有限公司 | Thermal insulation layer heating, pressurising Anti-corrosive chimney |
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| CN104406182A (en) | 2015-03-11 |
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Effective date of registration: 20180827 Address after: 410006, No. three, No. three, B1 building, 27 Yuan Lu Yuan Garden, No. 27, Wen Xuan Road, Hi-tech Development Zone, Hunan. Patentee after: HUNAN HUIFENG ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 410205 Room 302, B1 Plaza, 27 Lufeng Road, Changsha high tech Zone, Hunan Patentee before: Hunan TianTong Non-Corrosiveness Chimney Co., Ltd. |