CN203009871U - Valve seat of double-eccentric metal sealing butterfly valve - Google Patents
Valve seat of double-eccentric metal sealing butterfly valve Download PDFInfo
- Publication number
- CN203009871U CN203009871U CN 201220665197 CN201220665197U CN203009871U CN 203009871 U CN203009871 U CN 203009871U CN 201220665197 CN201220665197 CN 201220665197 CN 201220665197 U CN201220665197 U CN 201220665197U CN 203009871 U CN203009871 U CN 203009871U
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- China
- Prior art keywords
- valve seat
- valve
- butterfly valve
- double
- eccentric metal
- 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
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Abstract
Disclosed is a valve seat of a double-eccentric metal sealing butterfly valve. The disc spring type valve seat comprises a fixing part, a concave part and a protruding part, wherein the fixing part, the concave part and the protruding part are sequentially arranged. According to the valve seat of the double-eccentric metal sealing butterfly valve, disc spring type design is adopted, the stretching length in a unit size is increased, so that elastic deformation of the valve seat in the working process is increased, plastic deformation is reduced, an inner ring is provided with a sealing face, and furthermore, double-eccentricity of the butterfly valve is utilized to enable a valve plate in the opening and closing processes to contact with the valve seat in an instantaneous mode, abrasion is reduced, service life is long, the range of application is wide, and maintenance is convenient.
Description
Technical field
The utility model relates to the butterfly valve field, particularly relates to a kind of two eccentric all-metal seal butterfly valve valve seat.
Background technique
Valve seat refers to dismountable face component in valve, for support spool complete shut-down position, and consists of sealing pair.General valve-seat diameter is valve maximum flow diameter.The valve seat material of butterfly valve is very extensive, all kinds of rubber, and plastics, metallic material all can be used as the valve seat material, for example: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE etc., metallic sealing butterfly valve normally adopt three eccentric designs, its valve seat adopts multilayer metal foil more, uses the nonmetallic material intervals between every layer of sheet metal, makes complicated, and after the design of three bias caused valve to be revealed, maintenance difficulty was high, and the layman can't keep in repair.
The model utility content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of valve seat that is applicable to two eccentric metal sealed butterfly valves.
For realizing above-mentioned model utility purpose, the technological scheme that the utility model provides is: a kind of pair of eccentric metal sealed butterfly valve seat, the disk spring type design comprises the fixing part, depressed part and the lug boss that set gradually.
Further, described fixing part is packed on valve body, and described lug boss contacts with valve plate.
Further, also comprise sealing gasket, described sealing gasket is fitted in fixing part both sides.
Further, the sealing gasket of described fixing part one side and valve body close contact, the sealing gasket of opposite side and gland close contact.
Adopt technique scheme, the beneficial effects of the utility model have:
The utility model adopts the disc spring type design, increased the extended length in unit sizes, thereby increased the elastic strain of valve seat when work, reduced its plastic deformation, inner ring is provided with sealing surface, and contacts with valve seat is instantaneous when utilizing two bias of butterfly valve to make the valve plate switch, reduce wear, long service life, applied widely, easy to maintenance.
Description of drawings
Fig. 1 is disk spring type metal seat valve external view;
Fig. 2 is A-A section sectional view in Fig. 1;
Fig. 3, Fig. 4 are the utility model one embodiment's schematic diagram.
Wherein: 1 disk spring type valve seat, 2 metal-O-rings, 3 lug bosses, 4 depressed parts, 5 fixing parts, 6 sealing gaskets, 7 valve bodies, 8 valve plates, 9 glands.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 is the utility model external view, and Fig. 2 is A-A section sectional view in Fig. 1, and a kind of pair of eccentric metal sealed butterfly valve seat adopts the disk spring type design, and described disk spring type valve seat body comprises fixing part 5, depressed part 4 and the lug boss 3 that sets gradually.Described fixing part 5 is packed on valve body 7, and described lug boss 3 contacts with valve plate 8.Also comprise being fitted in fixing part 5 both sides sealing pads 6 sealing gasket 6 and valve body 1 close contact of described fixing part 5 one sides, sealing gasket 6 and gland 9 close contacts of opposite side.(be pressed into medium on the left of Fig. 3) when the medium positive pressure, medium promotes valve plate near disk spring type metal seat valve body, and pressure is higher, make disk spring type metal seat valve body more hug valve plate, thereby sealability is better.When medium (right direction from Fig. 3) backpressure, medium promotion disk spring type metal seat valve is followed valve plate and is moved together, near metal-O-ring (Fig. 4), makes the disc spring type metal seat valve hug valve plate, thereby guarantees sealability.
The above embodiment has only expressed mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. two eccentric metal sealed butterfly valve seat, it is characterized in that: described disk spring type valve seat designs for disk spring type, comprises the fixing part, depressed part and the lug boss that set gradually.
2. according to claim 1 pair of eccentric metal sealed butterfly valve seat, it is characterized in that: described fixing part is packed on valve body, and described lug boss contacts with valve plate.
3. according to claim 1 and 2 pair of eccentric metal sealed butterfly valve seat is characterized in that: also comprise sealing gasket, described sealing gasket is fitted in fixing part both sides.
4. according to claim 3 pair of eccentric metal sealed butterfly valve seat, is characterized in that: the sealing gasket of described fixing part one side and valve body close contact, the sealing gasket of opposite side and gland close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665197 CN203009871U (en) | 2012-12-05 | 2012-12-05 | Valve seat of double-eccentric metal sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665197 CN203009871U (en) | 2012-12-05 | 2012-12-05 | Valve seat of double-eccentric metal sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009871U true CN203009871U (en) | 2013-06-19 |
Family
ID=48601468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665197 Expired - Fee Related CN203009871U (en) | 2012-12-05 | 2012-12-05 | Valve seat of double-eccentric metal sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212687A (en) * | 2016-11-04 | 2019-09-06 | 台达电子工业股份有限公司 | Motor |
-
2012
- 2012-12-05 CN CN 201220665197 patent/CN203009871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212687A (en) * | 2016-11-04 | 2019-09-06 | 台达电子工业股份有限公司 | Motor |
| US10900516B2 (en) | 2016-11-04 | 2021-01-26 | Delta Electronics, Inc. | Motor having shock-proof design |
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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: 20130619 Termination date: 20131205 |