CN205481102U - Air heater and sealing device thereof - Google Patents
Air heater and sealing device thereof Download PDFInfo
- Publication number
- CN205481102U CN205481102U CN201620293761.5U CN201620293761U CN205481102U CN 205481102 U CN205481102 U CN 205481102U CN 201620293761 U CN201620293761 U CN 201620293761U CN 205481102 U CN205481102 U CN 205481102U
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- CN
- China
- Prior art keywords
- sealing device
- dividing plate
- top seal
- air preheater
- plate
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- 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.)
- Expired - Fee Related
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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 utility model provides an air heater and sealing device thereof. This sealing device is used for installing the rotor baffle at air heater to antitrochanter baffle and air heater's sector plate plays sealed effect, including gasket, top seal piece mounting panel, is used for installation and fixed seal piece, and middle part lamination formula baffle, with the structure looks adaptation of top seal piece mounting panel to make each other to be between top seal piece mounting panel and the middle part lamination formula baffle sliding, and the tip of middle part lamination formula baffle is fixed mutually with the tip of top seal piece mounting panel, upper and lower displacement is unrestricted. Through this application, the position that mushroom -shaped warp to take place moves down, becomes the lamination position of lamination formula baffle, make the clearance between cold, hot sector plate and the gasket remain unchanged, and heat altered shape position is laminated structure, both overlap joints, and the clearance be 0, the region of not leaking out, unable leakage.
Description
Technical field
The utility model relates to Air Preheater Technology field, especially, relating to a kind of air preheater and sealing device thereof.
Background technology
Air preheater is exactly the fin by inside of the flue gas in boiler back end ductwork, by the heating surface of the air preheat before entrance boiler to uniform temperature.For improving the heat exchange performance of boiler, reduce energy ezpenditure.Can be divided into box type, swinging two kinds, wherein, the rotor main of rotary regenerative air preheater to be made up of the radial direction dividing plate of a monoblock, the combination of multiple angles can be taked, form a number of point of storehouse, coordinate fanning strip diaphragm seal to form the sealing of air preheater, be similar to the revolving door of hotel.
Due to air preheater operationally, there is bigger pressure differential in fume side and air side, and air can be leaked to fume side by the gap between rotor and housing sound, makes to send, the power consumption of air-introduced machine increases, thus affects economic benefit.The air leak rate of air curtain of air preheater is the important indicator affecting boiler efficiency, and air leak rate of air preheater is the lowest, and boiler efficiency is the highest.Improve boiler efficiency by transformation air preheater, be the method for energy saving and efficiency increasing very economical, effective.As shown in Figure 1, under hot running status, the each parts of air preheater all can expand because being heated, rotor dividing plate can produce the thermal deformation of " mushroom ", should " mushroom " deform between the position S occurred diaphragm seal and fanning strip B on rotor dividing plate A, cause the gap between cold and hot state fanning strip B and diaphragm seal to change greatly, produce region of leaking out, cause leakage.If the excesssive gap produced, air leak rate of air preheater will be caused to be substantially improved, longtime running is the most uneconomical.
For the technical problem that air leak rate of air preheater in prior art is big, effective solution is the most not yet proposed.
Summary of the invention
The utility model provides a kind of air preheater and sealing device thereof, it is possible to resolve the problem that existing air leak rate of air preheater is big.
In order to solve the problems referred to above, on the one hand, the utility model discloses the sealing device of a kind of air preheater, for being arranged on the rotor dividing plate of air preheater, seal with the fanning strip to rotor dividing plate and air preheater, including diaphragm seal, top seal sheet installing plate, for installing and fixing seal sheet；And the stacked dividing plate in middle part, suitable with the structure of top seal sheet installing plate, so that sliding each other between the stacked dividing plate of top seal sheet installing plate and middle part, and the end of the end of the stacked dividing plate in middle part and top seal sheet installing plate fixes, and upper and lower displacement is unrestricted.
Further, " " " " shape or " concavo-convex " shape structure misconnection is used to form between the stacked dividing plate of top seal sheet installing plate and middle part.
Further, this sealing device also includes: clamping plate are installed in end, fixes with the end of the stacked dividing plate in end and middle part of top seal sheet installing plate and is connected, for fixing with rotor dividing plate.
Further, this sealing device also includes: clamping plate are installed in bottom, and dividing plate stacked with middle part is fixing to be connected, for fixing with rotor dividing plate.
Further, top seal sheet installing plate and diaphragm seal use bolt, nut to be fixed.
On the other hand, the utility model discloses a kind of air preheater, including rotor dividing plate, also include the sealing device of any one air preheater that the application provides, wherein, sealing device is fixed on rotor dividing plate.
Compared with prior art, in the utility model, the sealing device of air preheater is in addition to diaphragm seal, also includes top seal sheet installing plate, for installing and fixing seal sheet；And the stacked dividing plate in middle part, suitable with the structure of top seal sheet installing plate, so that sliding each other between the stacked dividing plate of top seal sheet installing plate and middle part, and the end of the end of the stacked dividing plate in middle part and top seal sheet installing plate fixes, upper and lower displacement is unrestricted, this sealing device has the advantage that the thermal deformation position of " mushroom " of the rotor dividing plate generation so that air preheater moves down, become the lamination position of stacked dividing plate, this just makes cold, gap between hot fanning strip and diaphragm seal keeps constant, and thermal deformation position is laminated structure, both overlap joints, gap is 0, do not leak out region, cannot leak.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sealing device of the air preheater of prior art；
Fig. 2 is the structural representation of the sealing device of the air preheater of the application；
Fig. 3 is the structure diagram of the sealing device of the air preheater of the application；
Fig. 4 is the top seal sheet mounting plates structure schematic diagram of the sealing device of the air preheater of the application；
Fig. 5 is the middle part stacked diaphragm structure schematic diagram of the sealing device of the air preheater of the application；
Fig. 6 is that clamp region schematic diagram is installed in the bottom of the sealing device of the air preheater of the application；
Fig. 7 is that clamp region schematic diagram is installed in the end of the sealing device of the air preheater of the application；
Fig. 8 is the diaphragm seal structural representation of the sealing device of the air preheater of the application.
In the accompanying drawings, A rotor dividing plate；B fanning strip；S " mushroom " deformation position；1 top seal sheet installing plate；Stacked dividing plate in the middle part of in the of 2；Clamping plate are installed in 3 bottoms；Clamping plate are installed in 4 ends；5 diaphragm seals.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, with detailed description of the invention, the utility model is described in further detail below in conjunction with the accompanying drawings.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
In description of the present utility model, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include that fisrt feature directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include that fisrt feature immediately below second feature and obliquely downward, or is merely representative of fisrt feature level height less than second feature.
With reference to Fig. 2 to Fig. 8, show the structural representation of sealing device one embodiment of the utility model air preheater, this sealing device is arranged on the rotor dividing plate A of air preheater, seal as shown in Figure 3 with the fanning strip B to rotor dividing plate A and air preheater, this sealing device includes diaphragm seal 5, the stacked dividing plate of top seal sheet installing plate 1 and middle part 2, wherein, diaphragm seal 5 is mounted and fixed on top seal sheet installing plate 1, and the securing member such as bolt, nut can be used to be fixed；The structure of top seal sheet installing plate 1 dividing plate stacked with middle part 2 is suitable, go into the structure slided each other between the two, such as, " " " " shape or " concavo-convex " shape structure misconnection is used to form between the stacked dividing plate of top seal sheet installing plate 1 and middle part 2, or may be used without other planform, the application does not limit.Simultaneously, the end of stacked dividing plate 2, middle part fixes with the end of top seal sheet installing plate 1, and during both front slide, the upper and lower displacement of generation is unrestricted, namely, not stacked for middle part dividing plate 2 is completely fixed with top seal sheet installing plate 1, but fixes in end and can relatively slide.
Use the sealing device of this embodiment, the expanded by heating when rotor dividing plate, when producing " mushroom " thermal deformation, this sealing device can make heat deformable regions be displaced downwardly to lamination position, S location as shown in Figure 3, and lamination position uses the structure slided each other suitable, absorb deformation by sliding, make leakage-gap vanishing, thus be inherently eliminated the impact of " mushroom " thermal deformation, the air leak rate of air curtain making air preheater is greatly reduced, and is highly suitable for the energy saving and efficiency increasing in thermal power plant.
Preferably, the employing end, end of the stacked dividing plate in end and middle part 2 of top seal sheet installing plate 1 is installed clamping plate 4 and is fixed, specifically can use end that clamping plate 4 are installed to carry out welding or securing member fastening, realize the fastening in end of top seal sheet installing plate and the middle part stacked dividing plate, the clamping plate 4 of end installation simultaneously fix with rotor dividing plate, are both secured on rotor dividing plate with the end by the stacked dividing plate in the end of portion's diaphragm seal installing plate 1 and middle part 2.
Use this preferably sealing device, by end, clamping plate 4 are installed and the end of the stacked dividing plate in end and middle part 2 of top seal sheet installing plate 1 is fixed, it is possible to play following effect: fix top seal sheet installing plate 1 so that it is have and take root a little.Additionally fixed position is positioned at expansion zero point, and making the whole device hot swell increment at this position is zero.
Preferably, this sealing device also includes that clamping plate 3 are installed in bottom, and bottom installation clamping plate 3 dividing plate stacked with middle part 2 is fixing to be connected, and specifically can use welding or securing member fastening, fix with rotor dividing plate, to be anchored on rotor dividing plate by stacked for middle part dividing plate 2 simultaneously.After being fixed on rotor dividing plate, it is installed on former preheater heat accumulating element and wraps portion.
Use this preferably sealing device, by bottom, clamping plate 3 dividing plate stacked to middle part 2 is installed and is fixed, it is possible to play following effect: fix lower slide face, make bottom that clamping plate to be installed and dividing plate is connected as a single entity, play the effect sealing and supporting.
Preferably, above-mentioned top seal sheet installing plate 1, the stacked dividing plate in middle part 2, bottom installation clamping plate 3, end installation clamping plate 4 and the stacked sheet type modularized integrative-structure of diaphragm seal 5 row, further, situation based on air preheater multiple rotor dividing plate, can be by multiple further modularization assemblings of this integrative-structure, convenient installation.
Above to a kind of air preheater provided by the utility model and sealing device thereof, it is described in detail, principle of the present utility model and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method of the present utility model and core concept thereof；Simultaneously for one of ordinary skill in the art, according to thought of the present utility model, the most all will change, in sum, this specification content should not be construed as restriction of the present utility model.
Claims (6)
1. the sealing device of an air preheater, including diaphragm seal (5), it is characterised in that described sealing device is for being arranged on the rotor dividing plate of described air preheater, sealing with the fanning strip to described rotor dividing plate and air preheater, described sealing device also includes:
Top seal sheet installing plate (1), is used for installing and fix described diaphragm seal (5)；And
The stacked dividing plate in middle part (2), suitable with the structure of described top seal sheet installing plate (1), so that sliding each other between described top seal sheet installing plate (1) and described middle part stacked dividing plate (2), and the end of the end at the stacked dividing plate in described middle part (2) and described top seal sheet installing plate (1) fixes, upper and lower displacement is unrestricted.
2. the sealing device of air preheater as claimed in claim 1, it is characterised in that:
" " " " shape or " concavo-convex " shape structure misconnection is used to form between described top seal sheet installing plate (1) and described middle part stacked dividing plate (2).
3. the sealing device of air preheater as claimed in claim 1, it is characterised in that also include:
Clamping plate (4) are installed in end, fix with the end of the end and described middle part stacked dividing plate (2) of described top seal sheet installing plate (1) and are connected, for fixing with described rotor dividing plate.
4. the sealing device of air preheater as claimed in claim 1, it is characterised in that also include:
Clamping plate (3) are installed in bottom, and dividing plate stacked with described middle part (2) is fixing to be connected, for fixing with described rotor dividing plate.
5. the sealing device of air preheater as claimed in claim 1, it is characterised in that
Described top seal sheet installing plate (1) and described diaphragm seal (5) use bolt, nut to be fixed.
6. an air preheater, including rotor dividing plate, it is characterised in that also including the sealing device of air preheater according to any one of claim 1 to 5, described sealing device is fixed on described rotor dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620293761.5U CN205481102U (en) | 2016-04-11 | 2016-04-11 | Air heater and sealing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620293761.5U CN205481102U (en) | 2016-04-11 | 2016-04-11 | Air heater and sealing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205481102U true CN205481102U (en) | 2016-08-17 |
Family
ID=56644724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620293761.5U Expired - Fee Related CN205481102U (en) | 2016-04-11 | 2016-04-11 | Air heater and sealing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205481102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489063A (en) * | 2018-11-05 | 2019-03-19 | 李暐 | Rotary regenerative air preheater encapsulating method, self-compensation sealed part and air preheater |
| CN110762551A (en) * | 2018-07-25 | 2020-02-07 | 湖北金奥特节能环保科技有限公司 | Air preheater invariant constant rate of leaking out sealing device that warp |
-
2016
- 2016-04-11 CN CN201620293761.5U patent/CN205481102U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762551A (en) * | 2018-07-25 | 2020-02-07 | 湖北金奥特节能环保科技有限公司 | Air preheater invariant constant rate of leaking out sealing device that warp |
| CN109489063A (en) * | 2018-11-05 | 2019-03-19 | 李暐 | Rotary regenerative air preheater encapsulating method, self-compensation sealed part and air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180411 |