CN202851961U - Sealing device of static and dynamic combining part of rotating equipment - Google Patents
Sealing device of static and dynamic combining part of rotating equipment Download PDFInfo
- Publication number
- CN202851961U CN202851961U CN2012204251429U CN201220425142U CN202851961U CN 202851961 U CN202851961 U CN 202851961U CN 2012204251429 U CN2012204251429 U CN 2012204251429U CN 201220425142 U CN201220425142 U CN 201220425142U CN 202851961 U CN202851961 U CN 202851961U
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- China
- Prior art keywords
- spring
- folding
- fixed
- base plate
- association
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- 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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- Sealing Devices (AREA)
Abstract
The utility model provides a sealing device of a static and dynamic combining part of rotating equipment. The sealing device of the static and dynamic combining part of the rotating equipment mainly comprises a spring sealing piece, a steel brush sealing piece and a pressing plate. The spring sealing piece and the steel brush sealing piece are fixed on a stator or a rotor through a bolt, a nut and the pressing plate. The sealing device of the static and dynamic combining part of the rotating equipment is characterized in that a fixing piece of a hinge and the spring sealing piece are fixed on the stator or the rotor through the bolt, the nut and the pressing plate. The fixing piece of the hinge is provided with a base plate, a wedge block is arranged on the other hinge piece of the hinge, a spring is fixed on the base plate, and the spring is fixed on the other hinge piece of the hinge and the wedge block through a pin shaft. The sealing device has the advantages that sealing effect is improved, air leakage rate is reduced, and operational reliability of the sealing device is improved.
Description
Technical field
The present invention relates to the be association of activity and inertia seal arrangement at position of rotating machinery.
Background technique
Rotary regenerative air preheater is generally adopted 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 send from reduction, induced draught fan power consumption and improve two aspects of efficiency of boiler and obtain energy saving profit.Thereby no matter be domestic and international air preheater manufacturer or vast air preheater applying unit, all in the air leak rate of air curtain of making great efforts to reduce aspect different air preheater.
Traditional rotary regenerative air preheater generally all adopts the gapped sealing technique of rigidity, namely keeps a minimum clearance between the sound structure, reaches the inleakage minimum.Because the mushroom deformation problem of air preheater, and this distortion constantly changes with load and ambient temperature, so that we are difficult to find the gap width between the sound structure an of the best.Therefore the shortcoming of the gapped sealing technique of this rigidity is that air leak rate of air curtain is bigger than normal, and especially after the wearing and tearing of operation a period of time sealing configuration increase, air leak rate of air curtain will significantly raise.And the Economy of leaking out to boiler operatiopn has a significant impact.According to test statistics, join the every reduction by 1% of 300MW unit boiler air leak rate of air preheater, can reduce unit coal consumption 0.16g/kWh.
Summary of the invention
The object of the present invention is to provide a kind of seal arrangement that reduces air leak rate of air preheater.
The invention provides the be association of activity and inertia seal arrangement at position of a kind of rotating machinery, mainly comprise spring sealed, wire brush diaphragm seal and pressing plate, spring sealed and wire brush diaphragm seal are fixed on stator or the rotor with bolt, nut and pressing plate, it is characterized in that: at stator or rotor with bolt, nut and pressing plate with the spring sealed fixing fixed plate that folding is arranged, on the fixed plate of folding base plate is arranged, another blade in folding has wedge-shaped blocks, be fixed with spring at base plate, spring is fixed on another blade and wedge-shaped blocks of folding with bearing pin.
After rotor motion entered sealing station, spring was compressed, and slide block relies on spring tension and wire brush elasticity to guarantee close contact between rotor and the stator, forms tight gapless sealing configuration; After rotor motion left sealing station, the folding spring flicked, and returns to original state.
The be association of activity and inertia seal arrangement at position of rotating machinery provided by the invention, its spring can be fixed in the limited ring of base plate, the restraining spring radial displacement.
The be association of activity and inertia seal arrangement at position of rotating machinery provided by the invention, it can the limited location device on another blade of base plate and folding, comes off because fold opening is excessive with spring free.
The be association of activity and inertia seal arrangement at position of rotating machinery provided by the invention, its limit stoper can be the screw bolt and nut that connects another blade of base plate and folding, in order to regulate the maximum open amount of folding, avoid spring when rotor does not contact with stator, to be in free extended configuration.
The be association of activity and inertia seal arrangement at position of rotating machinery provided by the invention, can there be the self-lubrication alloy bar on the top of its wedge-shaped blocks, to reduce wearing and tearing, prolongs operating life.
The be association of activity and inertia seal arrangement at position of rotating machinery provided by the invention, its advantage is: improve sealing effect, reduce air leak rate of air curtain, improved the operational reliability of device.
Description of drawings
Fig. 1 is the be association of activity and inertia structural representation of seal arrangement at position of rotating machinery.
Embodiment
The be association of activity and inertia seal arrangement at position of rotating machinery, its structure as shown in Figure 1, comprise spring sealed 10 and pressing plate 11, spring sealed 10 usefulness bolts 13, nut 12 and pressing plate 11 are fixed on the gusset 15 of rotor, gusset 15 usefulness bolts 13 at rotor, the fixed plate that also has folding 4 that nut 12 and pressing plate 11 are fixed, be welded with base plate 9 on the fixed plate of folding 4, another blade in folding 4 has wedge-shaped blocks 2,7 li of limited rings on base plate 9 are fixed with spring 6, spring 6 usefulness bearing pins 3 are fixed on another blade and wedge-shaped blocks 2 of folding 4, bearing pin 3 heads are processed into spherical structure, in case elongating or shortening in the process, scrapes with its card by spring, there is self-lubrication alloy bar 1 on the top of wedge-shaped blocks 2, limited location device on another blade of base plate 9 and folding 4, limit stoper is bolt 5 and the nut 8 that connects another blade of base plate 9 and folding 4, uses bolt 13 on the gusset 15 of rotor, spring sealed 14 of the in addition wire brush that nut 12 and pressing plate 11 are fixed.16 is sectors of stator among the figure.
Claims (7)
1. the rotating machinery seal arrangement at position of being association of activity and inertia, mainly comprise spring sealed, wire brush diaphragm seal and pressing plate, spring sealed and wire brush diaphragm seal are fixed on stator or the rotor with bolt, nut and pressing plate, it is characterized in that: at stator or rotor with bolt, nut and pressing plate with the spring sealed fixing fixed plate that folding is arranged, on the fixed plate of folding base plate is arranged, another blade in folding has wedge-shaped blocks, be fixed with spring at base plate, spring is fixed on another blade and wedge-shaped blocks of folding with bearing pin.
2. according to the be association of activity and inertia seal arrangement at position of rotating machinery claimed in claim 1, it is characterized in that: described spring is fixed in the limited ring of base plate.
3. according to the be association of activity and inertia seal arrangement at position of rotating machinery claimed in claim 1, it is characterized in that: described on another blade of base plate and folding the limited location device.
4. according to the be association of activity and inertia seal arrangement at position of rotating machinery claimed in claim 2, it is characterized in that: described on another blade of base plate and folding the limited location device.
5. according to the be association of activity and inertia seal arrangement at position of rotating machinery claimed in claim 3, it is characterized in that: described limit stoper is the screw bolt and nut that connects another blade of base plate and folding.
6. according to the be association of activity and inertia seal arrangement at position of rotating machinery claimed in claim 4, it is characterized in that: described limit stoper is the screw bolt and nut that connects another blade of base plate and folding.
7. according to the be association of activity and inertia seal arrangement at position of the described rotating machinery of one of claim 1 ~ 6, it is characterized in that: there is the self-lubrication alloy bar on the top of described wedge-shaped blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204251429U CN202851961U (en) | 2012-08-24 | 2012-08-24 | Sealing device of static and dynamic combining part of rotating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204251429U CN202851961U (en) | 2012-08-24 | 2012-08-24 | Sealing device of static and dynamic combining part of rotating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851961U true CN202851961U (en) | 2013-04-03 |
Family
ID=47983166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204251429U Expired - Fee Related CN202851961U (en) | 2012-08-24 | 2012-08-24 | Sealing device of static and dynamic combining part of rotating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865370A (en) * | 2012-08-24 | 2013-01-09 | 冯振洲 | Sealing device of dynamic and static combination part of rotating equipment |
| CN104214452A (en) * | 2013-06-04 | 2014-12-17 | 宁夏嘉翔自控技术有限公司 | Elastic sealing structure |
-
2012
- 2012-08-24 CN CN2012204251429U patent/CN202851961U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865370A (en) * | 2012-08-24 | 2013-01-09 | 冯振洲 | Sealing device of dynamic and static combination part of rotating equipment |
| CN104214452A (en) * | 2013-06-04 | 2014-12-17 | 宁夏嘉翔自控技术有限公司 | Elastic sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20130824 |