CN209278477U - Axial sealer in omnidirectional's flexible sealing structure - Google Patents
Axial sealer in omnidirectional's flexible sealing structure Download PDFInfo
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- CN209278477U CN209278477U CN201822141214.7U CN201822141214U CN209278477U CN 209278477 U CN209278477 U CN 209278477U CN 201822141214 U CN201822141214 U CN 201822141214U CN 209278477 U CN209278477 U CN 209278477U
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- protection board
- sealing plate
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- bolt
- mounting plate
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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 discloses the axial sealers in omnidirectional's flexible sealing structure, including mounting plate, connection bolt, protection board and sealing plate, further include the sleeve being set on connection bolt, the sleeve is clamped between mounting plate and protection board；The sealing plate includes connecting pin and sealed end; the connecting pin and sealed end partner opposite end; bolt hole is provided on connecting pin; the sealing plate is sheathed on connection bolt by the bolt hole, and sealing plate is held between the end face of sleeve and the surface of protection board or is held between the end face of sleeve and the surface of mounting plate；Deformation section in the form of slot is additionally provided on the mounting plate, and on connecting pin and the line direction of sealed end, the deformation section notch width direction both direction altogether to.This axial sealer structure is simple, long service life.
Description
Technical field
The utility model relates to air preheater sealing structure technical fields, more particularly in a kind of omnidirectional's flexible sealing structure
Axial sealer.
Background technique
Rotary regenerative air preheater abbreviation air preheater, is the heat-exchange apparatus of large-sized boiler, due to relative to tubular air
Preheater, have compact-sized, small in size, heat exchange surface density is high, overall mass is light, metal consumption is few, arrangement is easy for installation,
The features such as low-temperature corrosion is lighter is widely used on station boiler.Air preheater is the flue gas heat using boiler discharge come pre-
Heat enters air needed for boiler participates in burning, or as the reclaimer of boiler smoke heat, in order to use the above heat
Make the equipment of other purposes such as fuel dehumidifying, heating, the purpose of equipment setting is to improve the efficiency of boiler.Air preheater leaks out
Rate is to influence the important indicator of boiler efficiency, and the above air leak rate of air curtain of air preheater in the prior art is generally 6%- under normal circumstances
8%, poor sealing is even as high as 20%, so, the sealing technique of air preheater influences the efficiency of boiler big.
The full township's flexible sealing structure of air preheater includes hot end apex combustion seal, cold end apex combustion seal, bypass seal
Device, axial sealer, wherein the performance of axial sealer has decisive role to air preheater integral sealing effect.
Utility model content
There is decision to air preheater integral sealing effect for the performance of axial sealer in the prior art set forth above
Property effect the problem of, the utility model provides the axial sealer in a kind of omnidirectional's flexible sealing structure.This axial seal
Apparatus structure is simple, long service life.
To solve the above problems, axial sealer in omnidirectional's flexible sealing structure provided by the utility model by with
Lower technical essential solves the problems, such as: the axial sealer in omnidirectional's flexible sealing structure, including mounting plate, connection bolt, protects
Backplate and the sealing plate being installed on mounting plate, the mounting plate and protection board are connected by the connection threaded screw fasteners, described
Sealing plate is held between mounting plate and protection board, further includes the sleeve being set on connection bolt, and the sleeve is clamped
Between mounting plate and protection board；
The sealing plate includes connecting pin and sealed end, and the connecting pin and sealed end partner opposite end, connecting pin
On be provided with bolt hole, the sealing plate is sheathed on connection bolt by the bolt hole, and sealing plate is held in sleeve
End face and protection board surface between or be held between the end face of sleeve and the surface of mounting plate；
Deformation section in the form of slot, and connecting pin and the line direction of sealed end, the change are additionally provided on the mounting plate
In shape section the width direction both direction of notch altogether to.
Specifically, in the prior art, for the axial seal structure of air preheater, occurring such as patent application number are as follows:
CN201510228444.5, technical solution title are as follows: the technical solution of the sealing device of air preheater and its cold end axially or radially,
As described in the technical solution, axial seal structure in the prior art in use, due to its will with air preheater rotor turn
It is dynamic, while the free end of sealing plate may be direct with fanning strip or stator interior during the mushroom deformation of air preheater rotor
Contact.As preferred form, is disclosed in above scheme and sealing plate is constrained using protection board, to optimize the specific of sealing plate stress
Scheme；The technical solution including the bolt hole for bar shaped bolt hole is also disclosed, in order to the position to sealing plate free end
It sets and is adjusted, reach and obtain balanced preferred installation form in both service life and leakage rate.However, in the prior art, leading to
The scheme for crossing the above bar shaped bolt hole is only capable of the general operating condition according to air preheater, to the fixed point of sealing plate and free end it
Between spacing judged after, by connect bolt sealing plate specific position is constrained, in air preheater fluctuation of operating conditions process
In, still remain the unmatched problem of both abrasion loss caused by being installed by sealing plate and leakage rate.
In the present solution, passing through the determination that the sleeve realizes minimum spacing between protection board and mounting plate: by sleeve by
Pressure is realized.Implementation on connection bolt is sheathed on using sleeve, relative to using cushion block etc., may make each portion in the present apparatus
The connection reliability of part is higher.
In the present solution, by being set as including deformation section, while it is in the form of slot by being limited to deformation section, while passing through restriction
The width direction of notch, in this way, may be configured as the i.e. above-described sealing in free end of sealing plate when installing this sealing device
End, shorterly with a distance from stator inner wall settable compared to the prior art, the above shorter distance can reduce the axial direction of air preheater
Inleakage, meanwhile, when the free end of mushroom deformation sealing plate occurs for air preheater rotor and stator inner wall contacts, due to deformation
Section part is more prone to produce deformation compared to the straight panel section part of sealing plate, thus deformation section may make after deforming sealing plate and
Normal pressure between stator inner wall becomes smaller, to reach in the case where controlling inleakage, reaches and delays sealing plate abrasion, improves
The purpose of service life.Further, since in the prior art, sealing plate is all made of elastic material and is made, therefore become in mushroom
After shape is restored, elastic recovery occurs for sealing plate shape, effectively controls inleakage by this programme in this way, can also realize.
This programme structure is simple simultaneously, and increasing processing and forming step on existing sealing plate structure can be obtained.
Further technical solution are as follows:
Deformation constraint can be carried out to sealing plate by both protection board and mounting plate as one kind, in favor of inleakage control
With the implementation of local wear control, setting are as follows: in the deformation section, where side where notch and slot bottom in the two sides of side,
In side contacted with protection board, the other side is contacted with mounting plate.
As when sealing plate is installed, facilitate adjust sealing plate free end and stator inner wall gap width technical solution,
The bolt hole is strip-shaped hole, and the length direction of the strip-shaped hole and connects spiral shell along the line direction of connecting pin and sealed end
Bolt can slide in strip-shaped hole along the length direction of strip-shaped hole.
Constraint can be provided for sealing plate by protection board as one kind, and protection board free end position seals plate can be optimized and answered
Power concentrates the technical solution of situation, setting are as follows: end where connecting bolt on the protection board is fixing end, the protection board and solid
The opposite one end in fixed end is cantilever end, and the surface on the surface and side where protection board upper cantilever end of the sealing plate is affixed；
It include thickness change section on the protection board, the plate thickness of protection board is along cantilever end to admittedly in the thickness change section
Fixed end line dimension linear increases, and the most thin position of thickness change section plate thickness is located at cantilever end position.In the present solution, the protection board
Free end be the cantilever end.
Preferably, for the stress in the optimization sealing plate course of work, it is close when especially sealing plate is contacted with stator inner wall
The stress of sealing plate, setting are as follows: the upper and lower surfaces of sealing plate are shiny surface.
The utility model has the following beneficial effects:
In the present solution, by being set as including deformation section, while it is in the form of slot by being limited to deformation section, while passing through restriction
The width direction of notch, in this way, may be configured as the i.e. above-described sealing in free end of sealing plate when installing this sealing device
End, shorterly with a distance from stator inner wall settable compared to the prior art, the above shorter distance can reduce the axial direction of air preheater
Inleakage, meanwhile, when the free end of mushroom deformation sealing plate occurs for air preheater rotor and stator inner wall contacts, due to deformation
Section part is more prone to produce deformation compared to the straight panel section part of sealing plate, thus deformation section may make after deforming sealing plate and
Normal pressure between stator inner wall becomes smaller, to reach in the case where controlling inleakage, reaches and delays sealing plate abrasion, improves
The purpose of service life.Further, since in the prior art, sealing plate is all made of elastic material and is made, therefore become in mushroom
After shape is restored, elastic recovery occurs for sealing plate shape, effectively controls inleakage by this programme in this way, can also realize.
This programme structure is simple simultaneously, and increasing processing and forming step on existing sealing plate structure can be obtained.
Detailed description of the invention
Fig. 1 is one specific embodiment of axial sealer in omnidirectional's flexible sealing structure described in the utility model
Structural schematic diagram, wherein the schematic diagram broken section；
Fig. 2 is one specific embodiment of axial sealer in omnidirectional's flexible sealing structure described in the utility model
In, the stereoscopic schematic diagram of sealing plate structure.
Figure acceptance of the bid note is respectively as follows: 1, protection board, 2, sealing plate, 21, deformation section, 3, mounting plate, 4, connection bolt, 5, set
Cylinder.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but the utility model be not limited only to
Lower embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, the axial sealer in omnidirectional's flexible sealing structure, including mounting plate 3, connection bolt
4, protection board 1 and the sealing plate 2 being installed on mounting plate 3, the mounting plate 3 pass through 4 bolt of connection bolt with protection board 1
Connection, the sealing plate 2 are held between mounting plate 3 and protection board 1, further include the sleeve 5 being set on connection bolt 4,
The sleeve 5 is clamped between mounting plate 3 and protection board 1；
The sealing plate 2 includes connecting pin and sealed end, and the connecting pin and sealed end partner opposite end, connecting pin
On be provided with bolt hole, the sealing plate 2 is sheathed on connection bolt 4 by the bolt hole, and sealing plate 2 is held in set
Between the end face of cylinder 5 and the surface of protection board 1 or it is held between the end face of sleeve 5 and the surface of mounting plate 3；
It is additionally provided with deformation section 21 in the form of slot on the mounting plate 3, and connecting pin and the line direction of sealed end, described
On deformation section 21 the width direction both direction of notch altogether to.
Specifically, in the prior art, for the axial seal structure of air preheater, occurring such as patent application number are as follows:
CN201510228444.5, technical solution title are as follows: the technical solution of the sealing device of air preheater and its cold end axially or radially,
As described in the technical solution, axial seal structure in the prior art in use, due to its will with air preheater rotor turn
It is dynamic, while the free end of sealing plate 2 may be straight with fanning strip or stator interior during the mushroom deformation of air preheater rotor
Contact.As preferred form, is disclosed in above scheme and sealing plate 2 is constrained using protection board 1, to optimize 2 stress of sealing plate
Concrete scheme；The technical solution including the bolt hole for bar shaped bolt hole is also disclosed, in order to free to sealing plate 2
The position at end is adjusted, and is reached and is obtained balanced preferred installation form in both service life and leakage rate.However, the prior art
In, by the scheme of the above bar shaped bolt hole, it is only capable of the general operating condition according to air preheater, to fixed point and oneself of sealing plate 2
After being judged by the spacing between end, 2 specific position of sealing plate is constrained by connecting bolt 4, in air preheater operating condition
In wave process, the unmatched problem of both abrasion loss caused by being installed by sealing plate 2 and leakage rate is still remained.
In the present solution, realizing the determination of minimum spacing between protection board 1 and mounting plate 3 by the sleeve 5: passing through sleeve
5, which are pressurized, realizes.Implementation on connection bolt 4 is sheathed on using sleeve 5, relative to using cushion block etc., may make the present apparatus
In each component connection reliability it is higher.
In the present solution, by being set as including deformation section 21, while it is in the form of slot by being limited to deformation section 21, pass through simultaneously
The width direction of notch is limited, in this way, the free end that may be configured as sealing plate 2 is i.e. described above when installing this sealing device
Sealed end, settable shorter with a distance from stator inner wall compared to the prior art, the above shorter distance can reduce air preheater
Axial inleakage, meanwhile, air preheater rotor occur mushroom deformation sealing plate 2 free end and stator inner wall contact when,
Straight panel section part due to 21 part of deformation section compared to sealing plate 2 is more prone to produce deformation, therefore after deformation section 21 deforms
It may make the normal pressure between sealing plate 2 and stator inner wall to become smaller, to reach in the case where controlling inleakage, reach and delay
The purpose that sealing plate 2 wears, improves service life.Further, since in the prior art, sealing plate 2 is all made of elastic material
It is made, therefore after mushroom deformation recovery, elastic recovery occurs for 2 shape of sealing plate, in this way, can also realize effective by this programme
Control inleakage.
This programme structure is simple simultaneously, and increasing processing and forming step in existing 2 structure of sealing plate can be obtained.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as illustrated in fig. 1 and 2, passes through protection board as one kind
Both 1 and mounting plate 3 can carry out deformation constraint to sealing plate 2, in favor of the realization side of inleakage control and local wear control
Case, setting are as follows: in the deformation section 21, where side where notch and slot bottom in the two sides of side, side therein connects with protection board 1
Touching, the other side is contacted with mounting plate 3.
As when sealing plate 2 is installed, facilitate the technical side for adjusting sealing plate 2 free end and stator inner wall gap width
Case, the bolt hole are strip-shaped hole, and the length direction of the strip-shaped hole and is connected along the line direction of connecting pin and sealed end
Bolt 4 can slide in strip-shaped hole along the length direction of strip-shaped hole.
It can be that sealing plate 2 provides constraint, and can optimize 1 free end position seals of protection board by protection board 1 as one kind
The technical solution of 2 stress concentration of plate, setting are as follows: it is fixing end, the guarantor that 4 place end of bolt is connected on the protection board 1
The one end opposite with fixing end of backplate 1 is cantilever end, the table of side where the surface and 1 upper cantilever end of protection board of the sealing plate 2
Face is affixed；
Include thickness change section on the protection board 1, in the thickness change section plate thickness of protection board 1 along cantilever end extremely
Fixing end line dimension linear increases, and the most thin position of thickness change section plate thickness is located at cantilever end position.In the present solution, the protection
The free end of plate 1 is the cantilever end.
Preferably, for the stress in optimization 2 course of work of sealing plate, when especially sealing plate 2 and stator inner wall contact
The stress of sealing plate 2, setting are as follows: the upper and lower surfaces of sealing plate 2 are shiny surface.In the present embodiment, the deformation section
21 are set as U-shaped channel-shaped or wave-shaped.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (4)
1. the axial sealer in omnidirectional's flexible sealing structure, including mounting plate (3), connection bolt (4), protection board (1) and
The sealing plate (2) being installed on mounting plate (3), the mounting plate (3) and protection board (1) pass through connection bolt (4) bolt
Connection, the sealing plate (2) are held between mounting plate (3) and protection board (1), which is characterized in that further include the company of being set in
Sleeve (5) on connecting bolt (4), the sleeve (5) are clamped between mounting plate (3) and protection board (1)；
The sealing plate (2) includes connecting pin and sealed end, and the connecting pin and sealed end partner opposite end, on connecting pin
It is provided with bolt hole, the sealing plate (2) is sheathed in connection bolt (4) by the bolt hole, and sealing plate (2) is clamped
Between the end face of sleeve (5) and the surface of protection board (1) or it is held in the end face of sleeve (5) and the surface of mounting plate (3)
Between；
It is additionally provided with deformation section in the form of slot (21) on the mounting plate (3), and connecting pin and the line direction of sealed end, described
On deformation section (21) the width direction both direction of notch altogether to.
2. the axial sealer in omnidirectional's flexible sealing structure according to claim 1, which is characterized in that the deformation
In section (21), where side where notch and slot bottom in the two sides of side, side therein is contacted with protection board (1), the other side and installation
Plate (3) contact.
3. the axial sealer in omnidirectional's flexible sealing structure according to claim 1, which is characterized in that the bolt
Hole is strip-shaped hole, and the length direction of the strip-shaped hole and connects bolt (4) in item along the line direction of connecting pin and sealed end
Shape Kong Zhongke is slided along the length direction of strip-shaped hole.
4. the axial sealer in omnidirectional's flexible sealing structure according to claim 1, which is characterized in that the protection
End where connecting bolt (4) on plate (1) is fixing end, and the protection board (1) one end opposite with fixing end is cantilever end, described
The surface of sealing plate (2) and the surface of side where protection board (1) upper cantilever end are affixed；
Include thickness change section on the protection board (1), in the thickness change section plate thickness of protection board (1) along cantilever end extremely
Fixing end line dimension linear increases, and the most thin position of thickness change section plate thickness is located at cantilever end position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141214.7U CN209278477U (en) | 2018-12-19 | 2018-12-19 | Axial sealer in omnidirectional's flexible sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141214.7U CN209278477U (en) | 2018-12-19 | 2018-12-19 | Axial sealer in omnidirectional's flexible sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278477U true CN209278477U (en) | 2019-08-20 |
Family
ID=67611963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822141214.7U Active CN209278477U (en) | 2018-12-19 | 2018-12-19 | Axial sealer in omnidirectional's flexible sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278477U (en) |
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2018
- 2018-12-19 CN CN201822141214.7U patent/CN209278477U/en active Active
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