CN104406182A - Thermal insulating layer heating and pressurizing corrosion-resistant chimney - Google Patents
Thermal insulating layer heating and pressurizing corrosion-resistant chimney Download PDFInfo
- Publication number
- CN104406182A CN104406182A CN201410680975.3A CN201410680975A CN104406182A CN 104406182 A CN104406182 A CN 104406182A CN 201410680975 A CN201410680975 A CN 201410680975A CN 104406182 A CN104406182 A CN 104406182A
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- insulation layer
- thermal insulation
- thermal insulating
- urceolus
- chimney
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- Thermal Insulation (AREA)
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, be specifically related to the heating of a kind of thermal insulation layer, 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, and gap, hole that even part wet flue gas is lining with in passing through enter thermal insulation layer, cause urceolus to corrode or seepage, thus affect the service life of chimney.At present, the etching problem of chimney mainly improves from build process and inner lining material aspect, but, no matter be optimize liner build process, still use densification instead, the inner lining material of antiseepage is all difficult to wet flue gas completely isolated, fundamentally can not solve the problem of chimney urceolus corrosion leakage.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiency of above-mentioned background technology, provides the leakage of a kind of anti-corrosion leak-proof, the thermal insulation layer heating of long service life, pressurising Anti-corrosive chimney.
The technical scheme that the present invention solves the employing of its technical problem is, a kind of thermal insulation layer heating, pressurising Anti-corrosive chimney, comprise urceolus, the vertical direction of described outer tube inner surface is provided with bracket, urceolus is divided into multiple elementary section by each bracket of vertical direction, the inner surface of each elementary section of described urceolus is provided with liner, thermal insulation layer is equipped with between described urceolus and each liner, be interconnected between thermal insulation layer, also be provided with charger, flow controller and temperature controller, described charger is connected with flow controller, described flow controller is connected with temperature controller, described temperature controller is communicated with thermal insulation layer, described charger is to insufflation gas in thermal insulation layer, gas temperature in described thermal insulation layer is higher than 30 DEG C, pressure in described thermal insulation layer is P1, is flue gas inside described liner, and the maximum pressure of flue gas is P2, P1 >=P2.
Further, be provided with blast pipe in the outer wall of described urceolus or thermal insulation layer, blast pipe is communicated with thermal insulation layer.
Further, described temperature controller is communicated with thermal insulation layer bottom by pipeline, is communicated with between adjacent thermal insulation layer by pipeline or punching.
Further, be provided with air inlet pipe in the outer wall of described urceolus or thermal insulation layer, described temperature controller is connected with air inlet pipe, and each thermal insulation layer is communicated with air inlet pipe respectively by pipeline.
Further, pressure P 1=1.1 ~ 1.5 P2 in described thermal insulation layer.
Compared with prior art, advantage of the present invention is as follows:
By improving thermal insulation layer space pressure, make the pressure in thermal insulation layer be more than or equal to chimney inside smoke pressure, the flue gas of chimney inside inverse pressure cannot enter into thermal insulation layer; Make the temperature of gas in thermal insulation layer remain on more than 30 DEG C simultaneously, avoid occurring condensation in thermal insulation layer, thus protection is become to outer cylindrical, reach the object that urceolus anti-corrosion leak-proof leaks, improve the service life of chimney.
Accompanying drawing explanation
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 the schematic diagram of liner pressure shown in Fig. 1,2.
In figure: 1-flow controller, 2-urceolus, 3-thermal insulation layer, 4-liner, 5-temperature controller, 6-blast pipe, 7-air inlet pipe, 2-1-bracket.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
With reference to Fig. 1, the present embodiment comprises urceolus 2, described urceolus 2 is armored concrete urceolus, the vertical direction of described urceolus 2 inner surface is provided with bracket 2-1, urceolus 2 is divided into multiple elementary section by each bracket 2-1 of vertical direction, the inner surface of each elementary section of described urceolus 2 is provided with liner 4, thermal insulation layer 3 is equipped with between described urceolus 2 and each liner 4, pipeline communication is passed through between adjacent thermal insulation layer 3, the thickness of thermal insulation layer 3 is 5cm, also be provided with charger, flow controller 1 and temperature controller 5, described charger is connected with flow controller 1, described flow controller 1 is connected with temperature controller 5, described temperature controller 5 is communicated with thermal insulation layer 3 bottom, described charger is to insufflation gas in thermal insulation layer 3, gas temperature in described thermal insulation layer 3 is 40 DEG C, described gas is air, with reference to Fig. 3, the 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=1.1 P2, the outer wall of described urceolus 2 is provided with blast pipe 6, and blast pipe 6 is communicated with thermal insulation layer 3.Cryogenic gas in thermal insulation layer 3 can be discharged by blast pipe 6 in time, is filled with high-temperature gas simultaneously, makes the gas in thermal insulation layer 3 remain on more than 30 DEG C.
Embodiment 2
With reference to Fig. 2, the difference of the present embodiment and embodiment 1 is only: the outer wall of urceolus 2 is provided with air inlet pipe 7, and described temperature controller 5 is connected with air inlet pipe 7, and each thermal insulation layer 3 is communicated with air inlet pipe 7 respectively by pipeline; The thickness of thermal insulation layer 3 is 8cm, and the gas temperature in thermal insulation layer 3 is 50 DEG C, and the pressure in thermal insulation layer 3 is P1=1.3 P2.All the other are with embodiment 1.
Embodiment 3
The present embodiment is only with the difference of embodiment 1: be communicated with by punching between adjacent thermal insulation layer 3, the thickness of thermal insulation layer 3 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 is positioned at thermal insulation layer 3.All the other are with embodiment 1.
Embodiment 4
The difference of the present embodiment and embodiment 2 is only: air inlet pipe 7 is positioned at thermal insulation layer 3.All the other are with embodiment 2.
Flow controller 1 enters the flow velocity of gas in thermal insulation layer 3 for regulating, thus regulates 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 principle that the present invention utilizes gas can not fall apart against companding, makes the flue gas inside liner 4 not enter thermal insulation layer 3 by liner 4.
The gas be filled with in thermal insulation layer 3 contains a certain amount of steam, there will be condensation when gas containing steam is below 30 DEG C, in thermal insulation layer 3, form water droplet, condense in urceolus 2 inner surface, the water of urceolus 2 inner surface is combined with air, can cause corrosion to urceolus 2.Temperature controller 5 enters the temperature of gas in thermal insulation layer 3 for regulating, make the temperature of gas in thermal insulation layer 3 remain on more than 30 DEG C, thus effectively avoids causing corrosion to urceolus 2, the object that urceolus 2 anti-corrosion leak-proof realizing chimney leaks.
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, and environment protecting is good.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these amendments and modification are within the scope of the claims in the present invention and equivalent technologies thereof, then these revise and modification also within protection scope of the present invention.
The prior art that the content do not described in detail in description is known to the skilled person.
Claims (5)
1. a thermal insulation layer heating, pressurising Anti-corrosive chimney, comprise urceolus (2), the vertical direction of described urceolus (2) inner surface is provided with bracket (2-1), urceolus (2) is divided into multiple elementary section by each bracket (2-1) of vertical direction, the inner surface of each elementary section of described urceolus (2) is provided with liner (4), it is characterized in that: between described urceolus (2) and each liner (4), be equipped with thermal insulation layer (3), thermal insulation layer is interconnected between (3), also be provided with charger, flow controller (1) and temperature controller (5), described charger is connected with flow controller (1), described flow controller (1) is connected with temperature controller (5), described temperature controller (5) is communicated with thermal insulation layer (3), described charger is to thermal insulation layer (3) interior insufflation gas, gas temperature in described thermal insulation layer (3) is higher than 30 DEG C, pressure in described thermal insulation layer (3) is P1, and described liner (4) inner side is flue gas, and the maximum pressure of flue gas is P2, P1 >=P2.
2. thermal insulation layer heating as claimed in claim 1, pressurising Anti-corrosive chimney, is characterized in that: be provided with blast pipe (6) in the outer wall of described urceolus (2) or thermal insulation layer (3), blast pipe (6) is communicated with thermal insulation layer (3).
3. thermal insulation layer heating as claimed in claim 1, pressurising Anti-corrosive chimney, is characterized in that: described temperature controller (5) is communicated with thermal insulation layer (3) bottom by pipeline, is communicated with between adjacent thermal insulation layer (3) by pipeline or punching.
4. thermal insulation layer heating as claimed in claim 1, pressurising Anti-corrosive chimney, it is characterized in that: in the outer wall of described urceolus (2) or thermal insulation layer (3), be provided with air inlet pipe (7), described temperature controller (5) is connected with air inlet pipe (7), and each thermal insulation layer (3) is communicated with air inlet pipe (7) respectively by pipeline.
5. the thermal insulation layer heating as described in one of Claims 1-4, pressurising Anti-corrosive chimney, is characterized in that: pressure P 1=1.1 ~ 1.5 P2 in described thermal insulation layer (3).
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 |
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| 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 true CN104406182A (en) | 2015-03-11 |
| CN104406182B CN104406182B (en) | 2017-01-25 |
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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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Cited By (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 |
| CN107860014A (en) * | 2017-09-28 | 2018-03-30 | 华电电力科学研究院 | A kind of method of power plant sleeve-type chimney control corrosion rate leakage |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180013A (en) * | 1987-01-19 | 1988-07-25 | Ebara Infilco Co Ltd | Stack system |
| JP3096032B1 (en) * | 1999-06-25 | 2000-10-10 | 川崎重工業株式会社 | Smoke exhaust method using multi-tube chimney |
| JP2001141227A (en) * | 1999-11-11 | 2001-05-25 | Shimizu Corp | Method and apparatus for cleaning chimney/flue |
| 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 |
-
2014
- 2014-11-25 CN CN201410680975.3A patent/CN104406182B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180013A (en) * | 1987-01-19 | 1988-07-25 | Ebara Infilco Co Ltd | Stack system |
| JP3096032B1 (en) * | 1999-06-25 | 2000-10-10 | 川崎重工業株式会社 | Smoke exhaust method using multi-tube chimney |
| JP2001141227A (en) * | 1999-11-11 | 2001-05-25 | Shimizu Corp | Method and apparatus for cleaning chimney/flue |
| 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 |
Cited By (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 |
| CN107860014A (en) * | 2017-09-28 | 2018-03-30 | 华电电力科学研究院 | A kind of method of power plant sleeve-type chimney control corrosion rate leakage |
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| Publication number | Publication date |
|---|---|
| CN104406182B (en) | 2017-01-25 |
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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. |
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