CN206439853U - A kind of air pre-heater sealing structure - Google Patents
A kind of air pre-heater sealing structure Download PDFInfo
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- CN206439853U CN206439853U CN201621247325.0U CN201621247325U CN206439853U CN 206439853 U CN206439853 U CN 206439853U CN 201621247325 U CN201621247325 U CN 201621247325U CN 206439853 U CN206439853 U CN 206439853U
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- wear
- steel plate
- resisting steel
- sealing
- sealing structure
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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 a kind of air pre-heater sealing structure, including the first wear-resisting steel plate and the second wear-resisting steel plate, and the first wear-resisting steel plate and the second wear-resisting steel plate are connected by pin, form the kinematic pair of hinge-type；Brush filament is located at the outboard end of the second wear-resisting steel plate；The 3rd wear-resisting steel plate is provided with below second wear-resisting steel plate, is connected between the 3rd wear-resisting steel plate and the first wear-resisting steel plate by spring.Using the eddy flow formation sealing between air and steel wire, hinge-type spring will form tight gapless sealing with the automatic compensation of upspringing of diaphragm seal deformation.During work, flue gas enters air preheater brush wire bundle, and damping is strengthened, and leakage is reduced.The device that the utility model is provided overcomes the deficiencies in the prior art, using flexible constraint, contact seal, will not form gap, good sealing effect improves the efficiency of boiler, has reached the purpose of energy-conservation.Meanwhile, whole air preheater need not be changed during maintenance, sealing block need only be substituted maintenance purpose can be achieved, reduce maintenance cost.
Description
Technical field
The utility model is related to a kind of sealing structure, more particularly to a kind of air pre-heater sealing structure, belongs to sealing dress
Put technical field.
Background technology
Air preheater is the important component of steam generator system, and its principle is to mix air with flue gas, it is therefore an objective to profit
With the energy-saving effect of fume afterheat, boiler efficiency is improved.
At present, most air preheaters use swinging, due to the limitation of self structure and operating mode, and rotary regenerative air heater is all
In the presence of situation of directly leaking out, it is primarily due to rotor upper and lower side and there is temperature difference and occur mushroom deformation, in turn result in sealing
The increase in gap and the increase of air leak rate of air curtain.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of air pre-heater sealing structure of good sealing effect.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of air pre-heater sealing knot
Structure, it is characterised in that：Including the first wear-resisting steel plate and the second wear-resisting steel plate, the first wear-resisting steel plate and the second wear-resisting steel plate pass through pin
Nail connection, forms the kinematic pair of hinge-type；Brush filament is located at the outboard end of the second wear-resisting steel plate；It is provided with below second wear-resisting steel plate
3rd wear-resisting steel plate, is connected between the 3rd wear-resisting steel plate and the first wear-resisting steel plate by spring.
Preferably, first wear-resisting steel plate, the second wear-resisting steel plate can be around pin rotations.
Preferably, first wear-resisting steel plate is welded with air preheater.
Preferably, the brush filament is metallic steel wire brush.
Preferably, the brush filament and brush wire bundle matrix are integral by laser welding, and brush wire bundle matrix is welded on described the
The outboard end of two wear-resisting steel plates.
The utility model provide air pre-heater sealing structure in, diaphragm seal use metallic steel wire brush, using air with
Eddy flow formation sealing between steel wire, hinge-type spring will form tight gapless with the automatic compensation of upspringing of diaphragm seal deformation
Sealing.During work, flue gas enters air preheater brush wire bundle, and damping is strengthened, and leakage is reduced.
The device that the utility model is provided overcomes the deficiencies in the prior art, will not using flexible constraint, contact seal
Gap is formed, good sealing effect improves the efficiency of boiler, reached the purpose of energy-conservation.Meanwhile, it need not change whole during maintenance
Air preheater, need only substitute sealing block and maintenance purpose can be achieved, reduce maintenance cost.
Brief description of the drawings
The air pre-heater sealing structural representation that Fig. 1 provides for the present embodiment.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
The air pre-heater sealing structural representation that Fig. 1 provides for the present embodiment, described air pre-heater sealing structure
It is made up of brush filament 1, pin 2, the first wear-resisting steel plate 3, spring 4, the second wear-resisting steel plate 5 and the 3rd wear-resisting steel plate 6 etc..
First wear-resisting steel plate 3 and the second wear-resisting steel plate 5 are connected by pin 2, the first wear-resisting steel plate 3, the second wear-resisting steel plate 5
It can be rotated around pin 2, form the kinematic pair of hinge-type.Brush filament 1 is connected to the outboard end of the second wear-resisting steel plate 5.Second is resistance to
The 3rd wear-resisting steel plate 6 of the lower section of steel plate 5 welding is ground, is connected between the 3rd wear-resisting steel plate 6 and the first wear-resisting steel plate 3 by spring 4.
The first wear-resisting steel plate 3 and air preheater are welded after overall assembling.
Brush filament 1 uses metallic steel wire brush.Brush filament 1 is integral by laser welding with brush wire bundle matrix, the weldering of brush wire bundle matrix
It is connected on the outboard end of the second wear-resisting steel plate 5.
In the air pre-heater sealing structure that the present embodiment is provided, diaphragm seal uses metallic steel wire brush, utilizes air and steel
Eddy flow formation sealing between silk, hinge-type spring will form tight gapless close with the automatic compensation of upspringing of diaphragm seal deformation
Envelope.
Because brush filament is thin, there is preferable elasticity, weld strength is high, will not fall the phenomenons such as silk, and the speed that can be born surpasses
Cross 305m/s, heatproof up to more than 1200 DEG C, can for a long time, stably, safe operation, reach good sealing effectiveness.
Device utilizes hinge spring technology, and the technology fully takes into account the rotor of air preheater under hot running status
There is the deformation of certain face deformation and circumferencial direction, can compensate automatically.
Spring 4 requires to adapt to not fail under the condition of high temperature.
During the utility model air pre-heater sealing arrangement works, flue gas enters air preheater brush wire bundle, and damping is strengthened, leakage
Reduce.
Claims (5)
1. a kind of air pre-heater sealing structure, it is characterised in that：Including the first wear-resisting steel plate (3) and the second wear-resisting steel plate (5),
First wear-resisting steel plate (3) and the second wear-resisting steel plate (5) are connected by pin (2), form the kinematic pair of hinge-type；Brush filament (1) is set
Outboard end in the second wear-resisting steel plate (5)；The 3rd wear-resisting steel plate (6), the 3rd abrasion-resistant stee are provided with below second wear-resisting steel plate (5)
It is connected between plate (6) and the first wear-resisting steel plate (3) by spring (4).
2. a kind of air pre-heater sealing structure as claimed in claim 1, it is characterised in that：First wear-resisting steel plate (3),
Second wear-resisting steel plate (5) can be rotated around pin (2).
3. a kind of air pre-heater sealing structure as claimed in claim 1, it is characterised in that：First wear-resisting steel plate (3)
Welded with air preheater.
4. a kind of air pre-heater sealing structure as claimed in claim 1, it is characterised in that：The brush filament (1) is metallic steel
Wire brush.
5. a kind of air pre-heater sealing structure as described in claim 1 or 4, it is characterised in that：The brush filament (1) and brush filament
Shu Jiti is integral by laser welding, and brush wire bundle matrix is welded on the outboard end of second wear-resisting steel plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247325.0U CN206439853U (en) | 2016-11-21 | 2016-11-21 | A kind of air pre-heater sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247325.0U CN206439853U (en) | 2016-11-21 | 2016-11-21 | A kind of air pre-heater sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439853U true CN206439853U (en) | 2017-08-25 |
Family
ID=59645209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621247325.0U Active CN206439853U (en) | 2016-11-21 | 2016-11-21 | A kind of air pre-heater sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439853U (en) |
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2016
- 2016-11-21 CN CN201621247325.0U patent/CN206439853U/en active Active
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