CN202629109U - Inlet butterfly valve with two hard metal sealing pairs - Google Patents
Inlet butterfly valve with two hard metal sealing pairs Download PDFInfo
- Publication number
- CN202629109U CN202629109U CN 201220265338 CN201220265338U CN202629109U CN 202629109 U CN202629109 U CN 202629109U CN 201220265338 CN201220265338 CN 201220265338 CN 201220265338 U CN201220265338 U CN 201220265338U CN 202629109 U CN202629109 U CN 202629109U
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- valve
- maintenance
- working
- valve body
- injection hole
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- Expired - Fee Related
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Abstract
The utility model relates to an inlet butterfly valve with two hard metal sealing pairs. The inlet butterfly valve comprises a valve body, a valve plug arranged in the valve body, a valve shaft arranged on the valve plug, and a hard working sealing pair consisting of a working sealing valve seat and a working sealing ring, wherein the working sealing valve seat and the working sealing ring are arranged at an outlet end of the valve body; a maintenance-used water injection hole and a working-used water injection hole are formed in the valve body; an inlet end of the valve body is provided with a hard maintenance sealing pair consisting of a moveable maintenance sealing valve seat and a maintenance sealing ring; the outer side of the moveable maintenance sealing valve seat is provided with a shoulder of which the outer end surface is connected with the inner wall of the valve body; and the shoulder is positioned between the maintenance-used water injection hole and the working-used water injection hole. By the inlet butterfly valve, the whole valve is not required to be disassembled when the valve is maintained and the working sealing pair is replaced, so that the normal operation of a machine set cannot be influenced; and the inlet butterfly valve has the advantages of simple structure, long service life and high work efficiency.
Description
Technical field
The utility model relates to water power plant water inlet butterfly valve technical field, is specifically related to that a kind of can under the situation of not removing whole valve, overhaul and change working seal secondary and do not influence the water inlet butterfly valve of the hard sealing pair of band bimetal that unit normally moves.
Background technique
Existing water inlet butterfly valve is because can only one-way sealing, when the needs maintenance with change working seal when secondary, need close inlet gate, thereby cause unit to stop, and Awaiting Overhaul and replacing finish, and open work again, and unit just can get into generating state, has caused great waste.In addition, the sealing pair of this water inlet butterfly valve adopts soft material to make, and under certain working condition, has the serious aging problem, and its working life is short, and replacing is frequent, inefficiency.
Summary of the invention
The purpose of the utility model is in order to overcome above-mentioned defective, a kind of water inlet butterfly valve that can under the situation of not removing whole valve, overhaul and change the hard sealing pair of band bimetal of working seal pair, long service life, high working efficiency to be provided.
For realizing above-mentioned purpose; The water inlet butterfly valve of the hard sealing pair of band bimetal of the utility model design; Comprise valve body, be arranged on the interior valve of valve body, be installed in the valve shaft on the valve; And the hard sealing pair of forming by working seal valve seat and working seal circle of work; Said working seal valve seat and working seal circle are installed in the outlet end of valve body, and said valve body is provided with maintenance and drops into water injection hole and work input water injection hole, and the entrance point of valve body is equipped with the hard sealing pair of being made up of packaged type maintenance seal valve seat and maintenance seal ring of maintenance; The said packaged type maintenance seal valve seat outside is provided with the shoulder that the exterior edge face is connected with valve interior wall, and said shoulder drops between the water injection hole at maintenance input water injection hole and work.
In technique scheme, said packaged type maintenance seal valve seat is the stainless steel metal material with maintenance seal ring, working seal valve seat and working seal circle.
The utility model is provided with the secondary and maintenance sealing pair of working seal respectively at the waterexit end and the feed-water end of valve body; When the working seal pair needs maintenance or changes; The maintenance sealing pair is come into operation; Need not to dismantle can the finish the work maintenance of sealing pair and more changing jobs of valve, do not influence unit and normally move, improved working efficiency; The packaged type maintenance seal valve seat and the maintenance seal ring of the utility model; Working seal valve seat and working seal circle all adopt the surface through heat treated stainless steel metal material, and anticorrosive wear-resistant decreases, good sealing effect; Prolong working life, improved working efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: 1-maintenance drops into water injection hole; 2-valve body; 3-packaged type maintenance seal valve seat; 3.1-shoulder; 4-work drops into water injection hole; 5-maintenance seal ring; 6-valve; 7-working seal circle; 8-working seal valve seat; 9-valve shaft.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail:
The water inlet butterfly valve of the hard sealing pair of band bimetal as shown in Figure 1; Comprise valve body 2, be arranged on valve 6 in the valve body 2, be installed in the valve shaft 9 on the valve 6; And the hard sealing pair of forming by working seal valve seat 8 and working seal circle 7 of work; Working seal valve seat 8 and working seal circle 7 are installed in the outlet end of valve body 2; Valve body 2 is provided with maintenance and drops into water injection hole 1 and work input water injection hole 4; The entrance point of valve body 2 is equipped with by packaged type and overhauls seal valve seat 3 and overhaul the hard sealing pair of maintenance that seal ring 5 is formed, and packaged type maintenance seal valve seat 3 outsides are provided with the shoulder 3.1 that the exterior edge face is connected with valve body 2 inwalls, and shoulder 3.1 is between maintenance input water injection hole 1 and work input water injection hole 4.
The packaged type maintenance seal valve seat 3 of the utility model, maintenance seal ring 5, working seal circle 7,8 four parts of working seal valve seat all adopt anticorrosive wear-resistant damage, surface through heat treated stainless steel metal material; Sealing is reliable; And the surface has higher hardness; Longer service life, working efficiency is higher.
The working principle of the utility model is:
During proper functioning, the hard sealing pair of working comes into operation; When the hard sealing pair of work need overhaul; Overhauling hard sealing pair comes into operation: overhaul seal valve seat feed-water end injection pressure water through maintenance water injection hole 1 toward packaged type; The shoulder 3.1 that promotes packaged type maintenance seal valve seat 3 moves toward the waterexit end, thereby makes the maintenance sealing pair reach sealing state; When the maintenance sealing pair need not come into operation; Drop into water injection hole 4 toward the distolateral injection pressure water of packaged type maintenance seal valve seat 3 water outlets through work; The shoulder 3.1 that promotes packaged type maintenance seal valve seat 3 moves toward feed-water end, thereby packaged type maintenance seal valve seat 3 and maintenance seal ring 5 are thrown off.When more changing jobs hard sealing pair, unit can proper functioning, has improved working efficiency in maintenance.
Claims (2)
1. water inlet butterfly valve with the hard sealing pair of bimetal; Comprise valve body (2), be arranged on the interior valve (6) of valve body (2), be installed in the valve shaft (9) on the valve (6); And the hard sealing pair of forming by working seal valve seat (8) and working seal circle (7) of work; Said working seal valve seat (8) and working seal circle (7) are installed in the outlet end of valve body (2); It is characterized in that: said valve body (2) is provided with maintenance and drops into water injection hole (1) and work input water injection hole (4); The entrance point of valve body (2) is equipped with the hard sealing pair of being made up of packaged type maintenance seal valve seat (3) and maintenance seal ring (5) of maintenance; Said packaged type maintenance seal valve seat (3) outside is provided with the shoulder (3.1) that the exterior edge face is connected with valve body (2) inwall, and said shoulder (3.1) is positioned at maintenance input water injection hole (1) and work drops between the water injection hole (4).
2. the water inlet butterfly valve of the hard sealing pair of band bimetal according to claim 1 is characterized in that: the hard sealing pair of said maintenance is the surface with the hard sealing pair of work and forms through heat treated stainless steel metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265338 CN202629109U (en) | 2012-06-07 | 2012-06-07 | Inlet butterfly valve with two hard metal sealing pairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265338 CN202629109U (en) | 2012-06-07 | 2012-06-07 | Inlet butterfly valve with two hard metal sealing pairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629109U true CN202629109U (en) | 2012-12-26 |
Family
ID=47382314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265338 Expired - Fee Related CN202629109U (en) | 2012-06-07 | 2012-06-07 | Inlet butterfly valve with two hard metal sealing pairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016763A (en) * | 2012-12-29 | 2013-04-03 | 能发伟业铁岭阀门股份有限公司 | Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring |
-
2012
- 2012-06-07 CN CN 201220265338 patent/CN202629109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016763A (en) * | 2012-12-29 | 2013-04-03 | 能发伟业铁岭阀门股份有限公司 | Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring |
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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 |
Granted publication date: 20121226 Termination date: 20170607 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |