CN105371296A - Inserting splicing type bypass sealing device - Google Patents
Inserting splicing type bypass sealing device Download PDFInfo
- Publication number
- CN105371296A CN105371296A CN201510887272.2A CN201510887272A CN105371296A CN 105371296 A CN105371296 A CN 105371296A CN 201510887272 A CN201510887272 A CN 201510887272A CN 105371296 A CN105371296 A CN 105371296A
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- fixed head
- inserted sheet
- angle
- type bypass
- plug
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention relates to the technical field of boiler equipment, and specifically relates to an inserting splicing type bypass sealing device. The device comprises a plurality of cross sealing assemblies which are arranged at the outer side of rotor angle steel of an air pre-heater and are interconnected in an end-to-end manner, wherein each cross sealing assembly comprises a first part and a second part; each first part comprises a first fixing plate provided with a through hole; a plurality of first inserting sheets of which the cross sections are shown in the specification are arranged at equal intervals on one side surface of each first fixing plate; an inserting splicing gap is formed between every two adjacent first inserting splicing sheets; each second part comprises a second fixing plate provided with a through hole; a plurality of second inserting sheets of which the cross sections are shown in the specification are arranged at equal intervals on one side surface of each second fixing plate; a second inserting splicing gap is formed between every two adjacent second inserting splicing sheets; the first fixing plates and the second fixing plates are overlapped and fixed; the first inserting sheets and the second inserting sheets are crisscross inserted, spliced and fixed. With the adoption of the inserting splicing type bypass sealing device, the air leakage rate of the air preheater can be controlled, the electricity consumption of an air feeder and an induced draft fan can be reduced, and the boiler efficiency can be improved.
Description
Technical field
The present invention relates to boiler plant technical field, be specifically related to a kind of plug-in type bypass seal device.
Background technology
In prior art, rotary regenerative air preheater is generally used on big-and-middle-sized station boiler, and air leak rate of air curtain is one of its important economic indicator.Effective control air leak rate of air preheater, can give from reduction, air-introduced machine power consumption and improve boiler efficiency two aspects obtain energy saving profit.Reasons of air leakage is because the gap that between sound, reserved dilatancy produces is caused.
Air preheater air leakage reason: realize the heat exchange between flue gas and air by heat exchange element when rotor rotates, apex seal installed by rotor radial dividing plate, also be axially that diaphragm seal is installed, bottom apex seal and bottom fanning strip, top apex seal and top fanning strip, axial seal sheet and arc, they contact respectively and keep very small distance in hot operation, because these gaps of hot irregular deformation will form leaking out of flue gas and air, controlling this air leak rate of air curtain is that country proposes one of energy-saving and emission-reduction project to thermal power plant, reasons of air leakage is because the gap that between sound, reserved dilatancy produces is caused, reasoning will be administered to leak out and sound good contact must be adopted to be most effective measures thus.
The sealing adjustment of China and outside China air preheater is main according to rotary regenerative air preheater operational factor, precompute the mushroom deflection of hot lower rotor part, reserve certain swell increment when installing diaphragm seal with fanning strip, arc, bypass seal parts, during to ensure cold operation and hot operation, mushroom distortion is to reach the sealing state of the best.Traditional Sealing Technology all adopts the hard diaphragm seal of rigidity as sealing medium, due to seal clearance calculating and adjustment still there is error, still there is certain leakage-gap between fanning strip and diaphragm seal.And the existence of seal clearance must cause flying dust washing away diaphragm seal, As time goes on, the serious wear of diaphragm seal, air leak rate of air curtain progressively strengthens, to the economical operation of power plant and safeguard and also cause very large burden.
In prior art, bypass seal device as shown in Figure 1, comprise the multiple diaphragm seals 2 in multiple seal body 1, seal body 1 is provided with brace 4, brace 4 is provided with installing hole 3, and hermetically-sealed construction comprises adjacent sealing plate in the form of sheets, and this device can not solve the problem improving air leak rate of air curtain completely, there is sealing device and air preheater internal structure can not well merge, the while of can not reaching energy-conservation, ensure again the object of device security stable operation.
Traditional air preheater bypass seal is that guarantee is leaked out effect, the double-deck bypass seal sheet of general employing is superimposed upon one piece of way of installing to carry out, and there is the problem of diaphragm seal structure, during operation, its dogleg section gap becomes large, cause air leak rate of air curtain to rise, accelerate the wearing and tearing of bypass seal sheet simultaneously.
Summary of the invention
In order to overcome defect of the prior art, a kind of plug-in type bypass seal device provided by the invention and air preheater internal structure can well merge, and reduce the overall air leak rate of air curtain of air preheater; Equipment property safe and reliable to operation, reduces cost and ensures device security stable operation, improving the benefit of power plant safety and economy.
The present invention is achieved through the following technical solutions: a kind of plug-in type bypass seal device, comprise be arranged on air preheater rotor angle steel outside and each other head and the tail connect several cross sealed assemblies, described cross sealed assembly comprises first component and second component, described first component comprises the first fixed head being provided with through hole, and a side of described first fixed head is provided with several cross sections and is
shape and the first inserted sheet of equidistant setting, be provided with the first grafting gap between adjacent described first inserted sheet, described second component comprises the second fixed head being provided with through hole, and a side of described second fixed head is provided with several cross sections and is
shape and the second inserted sheet of equidistant setting, be provided with the second grafting gap between adjacent described second inserted sheet, described first fixed head and the second fixed head overlap fixing, described first inserted sheet and the second inserted sheet intersect grafting mutually to be fixed.
Further, one end of described first fixed head is provided with rectangle inserted sheet.
Further, one end of described second fixed head is provided with rectangle inserted sheet.
Further, described first fixed head and the first inserted sheet are provided with the first angle, are provided with the second angle between described second fixed head and the second inserted sheet, and described second angle is identical with the angle of the first angle.
Further, described first fixed head is provided with identical arc-shaped transition plate with the junction of the first inserted sheet and the junction of described second fixed head and the second inserted sheet.
Further, described first angle and the second angle are obtuse angle.
Compared with prior art, superior effect is: the present invention effectively can control air leak rate of air preheater, give from reduction, air-introduced machine power consumption and improve boiler efficiency two aspects obtain energy saving profit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bypass seal device of prior art;
Fig. 2 is the structure chart of first component in plug-in type bypass seal device of the present invention;
Fig. 3 is second component front view in plug-in type bypass seal device of the present invention;
Fig. 4 is the top view of second component in plug-in type bypass seal device of the present invention;
Fig. 5 is the left view of second component in plug-in type bypass seal device of the present invention.
Reference numeral is as follows:
1-seal body, 2-diaphragm seal, 3-installing hole, 4-brace, 5-first component, 501-first fixed head, 502-first inserted sheet, 503-first grafting gap, 504-rectangle inserted sheet, 6-second component, 601-second fixed head, 602-second insert-connecting plate, 603-second grafting gap, 604-rectangle inserted sheet, 7-through hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
As shown in Figure 2-5, illustrate a kind of plug-in type bypass seal device provided by the invention, comprise be arranged on air preheater rotor angle steel outside and each other head and the tail connect several cross sealed assemblies, described cross sealed assembly comprises first component 5 and second component 6, described first component 5 comprises the first fixed head 501 being provided with through hole 7, and a side of described first fixed head 501 is provided with several cross sections and is
shape stepped and the first inserted sheet 502 of equidistant setting, the first grafting gap 503 is provided with between adjacent described first inserted sheet 502, described second component 6 comprises the second fixed head 601 being provided with through hole 7, and a side of described second fixed head 601 is provided with several cross sections and is
shape stepped and the second inserted sheet 602 of equidistant setting, the second grafting gap 603 is provided with between adjacent described second inserted sheet 602, described first fixed head 501 and the second fixed head 502 overlap are fixed, described first inserted sheet 502 and the cross one another grafting of the second inserted sheet 602 are fixed, one end of described first fixed head 501 is provided with rectangle inserted sheet 504, one end of described second fixed head 601 is provided with rectangle inserted sheet 604, described first fixed head 501 and the first inserted sheet 502 are provided with the first angle, the second angle is provided with between described second fixed head 601 and the second inserted sheet 602, described second angle is identical with the angle of the first angle, preferably described first angle and the second angle are obtuse angle, first fixed head 501 is provided with identical arc-shaped transition plate with the junction of the first inserted sheet 502 and the junction of the second fixed head 601 and the second inserted sheet 602.During installation, first fixed head 501 is fixedly connected with the second fixed head 601 afterwards and rotor angle steel is approximate fits, a small amount of gap is left in centre, ensure rotor when rotated, rotor angle steel and bypass seal do not rub, interfere, long playing mild wear, extends service life, has saved cost.
The present invention is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present invention, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into protection scope of the present invention.
Claims (6)
1. a plug-in type bypass seal device, comprise be arranged on air preheater rotor angle steel outside and each other head and the tail connect several cross sealed assemblies, it is characterized in that, described cross sealed assembly comprises first component (5) and second component (6), described first component (5) comprises the first fixed head (501) being provided with through hole (7), and a side of described first fixed head (501) is provided with several cross sections and is
shape and first inserted sheet (502) of equidistant setting, the first grafting gap (503) is provided with between adjacent described first inserted sheet (502), described second component (6) comprises the second fixed head (601) being provided with through hole (7), and a side of described second fixed head (601) is provided with several cross sections and is
shape and second inserted sheet (602) of equidistant setting, the second grafting gap (603) is provided with between adjacent described second inserted sheet (602), described first fixed head (501) and the second fixed head (502) overlap are fixed, and described first inserted sheet (502) and the second inserted sheet (602) mutually intersection grafting are fixed.
2. plug-in type bypass seal device according to claim 1, it is characterized in that, one end of described first fixed head (501) is provided with rectangle inserted sheet (504).
3. plug-in type bypass seal device according to claim 1, it is characterized in that, one end of described second fixed head (601) is provided with rectangle inserted sheet (604).
4. plug-in type bypass seal device according to claim 1, it is characterized in that, described first fixed head (501) and the first inserted sheet (502) are provided with the first angle, be provided with the second angle between described second fixed head (601) and the second inserted sheet (602), described second angle is identical with the angle of the first angle.
5. plug-in type bypass seal device according to claim 1, it is characterized in that, described first fixed head (501) is provided with identical arc-shaped transition plate with the junction of the first inserted sheet (502) and the junction of described second fixed head (601) and the second inserted sheet (602).
6. plug-in type bypass seal device according to claim 4, it is characterized in that, described first angle and the second angle are obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887272.2A CN105371296A (en) | 2015-12-07 | 2015-12-07 | Inserting splicing type bypass sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887272.2A CN105371296A (en) | 2015-12-07 | 2015-12-07 | Inserting splicing type bypass sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371296A true CN105371296A (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510887272.2A Pending CN105371296A (en) | 2015-12-07 | 2015-12-07 | Inserting splicing type bypass sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371296A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881799A (en) * | 1996-06-25 | 1999-03-16 | Kozacka; Wayne R. | Perimeter sealing element for regenerative heat exchanger |
| CN1430715A (en) * | 2000-05-22 | 2003-07-16 | 阿尔斯托姆(瑞士)有限公司 | Rotor design with double seals for vertical air preheaters |
| US6789605B1 (en) * | 2002-04-08 | 2004-09-14 | Jackie L. Kaser | Sealing element for a regenerative heat exchanger |
| US7231958B1 (en) * | 2002-10-01 | 2007-06-19 | Paragon Airheater Technologies, Llc | Reinforced sealing element |
| CN101071048A (en) * | 2006-05-12 | 2007-11-14 | 北京化工大学 | Rotary air preheater with brush type sealing device |
| CN201575471U (en) * | 2009-12-04 | 2010-09-08 | 宁波市镇海福尔迅电梯部件厂 | Rotary type air preheater elastic slice contact sealing device |
| CN101915310A (en) * | 2010-05-12 | 2010-12-15 | 宁波富仕达电力工程有限责任公司 | Flexible steel sheet contact sealing devices and combined sealing structure thereof |
-
2015
- 2015-12-07 CN CN201510887272.2A patent/CN105371296A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881799A (en) * | 1996-06-25 | 1999-03-16 | Kozacka; Wayne R. | Perimeter sealing element for regenerative heat exchanger |
| CN1430715A (en) * | 2000-05-22 | 2003-07-16 | 阿尔斯托姆(瑞士)有限公司 | Rotor design with double seals for vertical air preheaters |
| US6789605B1 (en) * | 2002-04-08 | 2004-09-14 | Jackie L. Kaser | Sealing element for a regenerative heat exchanger |
| US7231958B1 (en) * | 2002-10-01 | 2007-06-19 | Paragon Airheater Technologies, Llc | Reinforced sealing element |
| CN101071048A (en) * | 2006-05-12 | 2007-11-14 | 北京化工大学 | Rotary air preheater with brush type sealing device |
| CN201575471U (en) * | 2009-12-04 | 2010-09-08 | 宁波市镇海福尔迅电梯部件厂 | Rotary type air preheater elastic slice contact sealing device |
| CN101915310A (en) * | 2010-05-12 | 2010-12-15 | 宁波富仕达电力工程有限责任公司 | Flexible steel sheet contact sealing devices and combined sealing structure thereof |
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| PB01 | Publication | ||
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Application publication date: 20160302 |