CN207194962U - A kind of tooth-like packing in side - Google Patents
A kind of tooth-like packing in side Download PDFInfo
- Publication number
- CN207194962U CN207194962U CN201721199493.1U CN201721199493U CN207194962U CN 207194962 U CN207194962 U CN 207194962U CN 201721199493 U CN201721199493 U CN 201721199493U CN 207194962 U CN207194962 U CN 207194962U
- Authority
- CN
- China
- Prior art keywords
- packing
- tooth
- buffer strip
- backboard
- mounting blocks
- Prior art date
- 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
Links
Abstract
The utility model discloses a kind of tooth-like packing in side, including labyrinth casing and packing backboard, labyrinth casing is flexibly connected packing backboard by mounting groove, spring is also equipped with the inside of mounting groove, packing backboard includes clamping block, linking arm and mounting blocks, clamps the inwall that block is flexibly connected mounting groove, clamps one end that block is fixedly connected with linking arm, the other end of linking arm is fixedly connected with mounting blocks, and the side-walls of mounting blocks are provided with gland sealing gear and buffer strip；The tooth-like packing in this side, after installation spring labyrinth casing can be made to be connected with packing backboard closer, avoid the occurrence of because of loosening problem, security is good, compact-sized in cellular buffer strip, the stepped distribution of gland sealing gear, wherein main tooth height is more than the height of auxiliary tooth and buffer strip, while stability is ensured, buffer strip transition consumption is avoided, extends its service life.
Description
Technical field
It the utility model is related to steam turbine accessory technical field, specially a kind of tooth-like packing in side.
Background technology
Packing is installed in steam turbine between stator and rotor two parts part, reduces or prevent that steam from leaking and vacuum
The device that side air leaks into, in order to reduce the gas leakage in above-mentioned gap everywhere, ensure steam turbine normal safe operation again, it is ad hoc
Various packings are put, the structure type of existing packing includes three kinds of labyrinth seal, carbon packing and water seal, wherein in labyrinth seal
It is exactly to use side tooth packing, but the tooth-like packing in existing side, due to design reasons, its existence and stability is bad, and security is difficult to
The problem of being guaranteed, while the bolster consumption in packing is excessive, causes its service life shorter.
Utility model content
The purpose of this utility model is to provide a kind of side tooth-like packing possess the advantages of security is good, and service life is long,
Solve the problems of the prior art.
To achieve the above object, the utility model provides following technical scheme：A kind of tooth-like packing in side, including labyrinth casing and
Packing backboard, the packing backboard are arranged on the inner side of labyrinth casing, offer mounting groove at the madial wall of labyrinth casing, labyrinth casing leads to
Cross mounting groove and be flexibly connected packing backboard, spring is also equipped with the inside of mounting groove, one end of spring connects labyrinth casing, spring
The other end connects packing backboard, and packing backboard includes clamping block, linking arm and mounting blocks, clamps block and is flexibly connected the interior of mounting groove
Wall, clamps one end that block is fixedly connected with linking arm, and the other end of linking arm is fixedly connected with mounting blocks, the side-walls installation of mounting blocks
There are gland sealing gear and buffer strip, buffer strip is located at the inner side of gland sealing gear, the side wall contact connection gland sealing gear of buffer strip, the gland sealing gear
Including main tooth and auxiliary tooth, main tooth and auxiliary tooth are fixedly connected with mounting blocks, and auxiliary tooth connects the side wall of main tooth, the side wall contact of auxiliary tooth
Buffer strip is connected, buffer strip also contacts connection with the side wall of main tooth.
Preferably, described one end for clamping block and being flexibly connected spring.
Preferably, the cross section of the buffer strip is in cellular.
Preferably, the height number of the main tooth is more than the height number of buffer strip.
Preferably, the gland sealing gear is uniformly distributed in the side wall of mounting blocks.
Compared with prior art, the beneficial effects of the utility model are as follows：The tooth-like packing in this side, it can make after spring is installed
Labyrinth casing is connected closer with packing backboard, avoids the occurrence of because of loosening problem, and security is good, tight in cellular buffering band structure
Gather, the stepped distribution of gland sealing gear, wherein main tooth height is more than the height of auxiliary tooth and buffer strip, while stability is ensured,
Buffer strip transition consumption is avoided, extends its service life.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is buffer strip schematic diagram of the present utility model；
Fig. 3 is close-up schematic view at A-A of the present utility model.
In figure：1 labyrinth casing, 11 mounting grooves, 12 springs, 2 packing backboards, 21 clamp block, 22 linking arms, 23 mounting blocks, 231
Gland sealing gear, 232 buffer strips, 233 main teeth, 234 auxiliary teeth.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1-3, a kind of tooth-like packing in side, including labyrinth casing 1 and packing backboard 2, packing backboard 2 and be arranged on packing
The inner side of body 1, mounting groove 11 is offered at the madial wall of labyrinth casing 1, mounting groove 11 is used to install packing backboard 2, and labyrinth casing 1 is logical
Cross mounting groove 11 and be flexibly connected packing backboard 2, the inner side of mounting groove 11 is also equipped with spring 12, one end connection packing of spring 12
Body 1, the other end connection packing backboard 2 of spring 12, spring 12 increases the pressure between labyrinth casing 1 and packing backboard 2, makes labyrinth casing
1 is connected more closely with packing backboard 2, avoids the occurrence of the safety problem caused by loosening, and packing backboard 2 includes clamping block 21, connected
Arm 22 and mounting blocks 23 are connect, clamps the inwall that block 21 is flexibly connected mounting groove 11, clamps one end that block 21 is flexibly connected spring 12,
Spring 12 is in compressive state, and the elastic force of spring 12 makes to clamp block 21 and is connected with the inwall of mounting groove 11 closer, clamps block 21
One end of linking arm 22 is fixedly connected with, the other end of linking arm 22 is fixedly connected with mounting blocks 23, the side-walls installation of mounting blocks 23
There are gland sealing gear 231 and buffer strip 232, packing can be reduced and take turns the gas leakage in steam turbine clearance adjustment, ensure steam turbine normally safety
Operation, buffer strip 232 are located at the inner side of gland sealing gear 231, the side wall contact connection gland sealing gear 231 of buffer strip 232, gland sealing gear 231
Be uniformly distributed in the side wall of mounting blocks 23, gland sealing gear 231 includes main tooth 233 and auxiliary tooth 234, main tooth 233 and auxiliary tooth 234 with
Mounting blocks 23 are fixedly connected, and auxiliary tooth 234 connects the side wall of main tooth 233, the side wall contact connection buffer strip 232 of auxiliary tooth 234, buffering
It is not only compact-sized in cellular buffer strip 232 with 232 cross section in cellular, moreover it is possible to serve air-flow well and delay
The effect of punching, buffer strip 232 also contact connection with the side wall of main tooth 233, and the height number of main tooth 233 is more than buffer strip 232
Height number, wherein 231 stepped distribution of gland sealing gear, the main height of tooth 233 are more than the height of auxiliary tooth 234 and buffer strip 232,
While ensureing stability, the transition of buffer strip 232 consumption is avoided, extends its service life.
The tooth-like packing in this side, packing backboard 2 are arranged on the inner side of labyrinth casing 1, and the inner side of tankage 11 is provided with spring 12, bullet
Spring 12 increases the pressure between labyrinth casing 1 and packing backboard 2, labyrinth casing 1 is connected with packing backboard 2 more closely, avoid the occurrence of because
Safety problem caused by loosening, the side-walls of mounting blocks 23 are provided with gland sealing gear 231 and buffer strip 232, can reduce packing with
The gas leakage in steam turbine clearance adjustment is taken turns, ensures steam turbine normal safe operation, it is not only compact-sized in cellular buffer strip 232,
The effect of air-flow buffer, 231 stepped distribution of gland sealing gear can also be served well, wherein the height of main tooth 233 is more than auxiliary tooth
234 and the height of buffer strip 232, while stability is ensured, the transition of buffer strip 232 consumption is avoided, extends it and uses the longevity
Life.
In summary：The tooth-like packing in this side, after spring 12 is installed labyrinth casing 1 can be made to be connected with packing backboard 2 more closely,
Avoid the occurrence of because of loosening problem, security is good, compact-sized in cellular buffer strip 232, stepped point of gland sealing gear 231
Cloth, wherein the height of main tooth 233 is more than the height of auxiliary tooth 234 and buffer strip 232, while stability is ensured, avoid buffering
The transition of band 232 consumes, and extends its service life.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of tooth-like packing in side, including labyrinth casing (1) and packing backboard (2), it is characterised in that：Packing backboard (2) peace
Mounted in the inner side of labyrinth casing (1), mounting groove (11) is offered at the madial wall of labyrinth casing (1), labyrinth casing (1) passes through mounting groove
(11) packing backboard (2) is flexibly connected, spring (12), one end connection vapour of spring (12) are also equipped with the inside of mounting groove (11)
Body (1), the other end connection packing backboard (2) of spring (12) are sealed, packing backboard (2) includes clamping block (21), linking arm (22)
With mounting blocks (23), the inwall that block (21) is flexibly connected mounting groove (11) is clamped, block (21) is clamped and is fixedly connected with linking arm (22)
One end, the other end of linking arm (22) is fixedly connected with mounting blocks (23), and the side-walls of mounting blocks (23) are provided with gland sealing gear
(231) and buffer strip (232), buffer strip (232) are located at the inner side of gland sealing gear (231), the side wall contact connection of buffer strip (232)
Gland sealing gear (231), the gland sealing gear (231) include main tooth (233) and auxiliary tooth (234), main tooth (233) and auxiliary tooth (234) with
Mounting blocks (23) are fixedly connected, and auxiliary tooth (234) connects the side wall of main tooth (233), the side wall contact connection buffer strip of auxiliary tooth (234)
(232), side wall of the buffer strip (232) also with main tooth (233) contacts connection.
A kind of 2. tooth-like packing in side according to claim 1, it is characterised in that：The block (21) that clamps is flexibly connected spring
(12) one end.
A kind of 3. tooth-like packing in side according to claim 1, it is characterised in that：The cross section of the buffer strip (232) is in
It is cellular.
A kind of 4. tooth-like packing in side according to claim 1, it is characterised in that：The height number of the main tooth (233) is big
Height number in buffer strip (232).
A kind of 5. tooth-like packing in side according to claim 1, it is characterised in that：The gland sealing gear (231) is in mounting blocks
(23) it is uniformly distributed in side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721199493.1U CN207194962U (en) | 2017-09-19 | 2017-09-19 | A kind of tooth-like packing in side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721199493.1U CN207194962U (en) | 2017-09-19 | 2017-09-19 | A kind of tooth-like packing in side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207194962U true CN207194962U (en) | 2018-04-06 |
Family
ID=61788084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721199493.1U Expired - Fee Related CN207194962U (en) | 2017-09-19 | 2017-09-19 | A kind of tooth-like packing in side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207194962U (en) |
-
2017
- 2017-09-19 CN CN201721199493.1U patent/CN207194962U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180406 Termination date: 20190919 |