CN202302280U - Corrugated pipe component for SF6 valve - Google Patents
Corrugated pipe component for SF6 valve Download PDFInfo
- Publication number
- CN202302280U CN202302280U CN2011204165895U CN201120416589U CN202302280U CN 202302280 U CN202302280 U CN 202302280U CN 2011204165895 U CN2011204165895 U CN 2011204165895U CN 201120416589 U CN201120416589 U CN 201120416589U CN 202302280 U CN202302280 U CN 202302280U
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- CN
- China
- Prior art keywords
- valve rod
- corrugated pipe
- bellows
- valve
- supporting base
- 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
The utility model discloses a corrugated pipe component for an SF6 valve. The corrugated pipe component comprises a valve rod, a support seat and a corrugated pipe, wherein the support seat is fixedly connected with the valve rod; an annular flange is arranged on the valve rod; the corrugated pipe is sleeved on the periphery of the valve rod between the annular flange and the support seat; the two ends of the corrugated pipe are correspondingly arranged in annular grooves which are reserved on the two opposite end faces of the annular flange and the support seat; and the corrugated pipe is fixed together with the annular grooves in a brazing way. Therefore, solder skips between a pipe orifice of the corrugated pipe and the valve rod and between the pipe orifice and the support seat can be effectively avoided, the sealing performance of the corrugated pipe component can be greatly improved, and the service life of the corrugated pipe component can be greatly prolonged.
Description
Technical field
The utility model relates to a kind of bellows component, and it is mainly used in the SF6 valve.
Background technique
In electric utilities such as primary cut-outs; React with air for avoiding sulphur hexafluoride to mix hydrogen fluoride, sulfur fluoride gas etc.; Generate the toxic and harmful contaminated air; The general sulphur hexafluoride valve (SF6 valve) that adopts seals, and the sulphur hexafluoride valve usually adopts bellows component to seal.
In the existing technology; SF6 valve bellows component commonly used, as shown in Figure 1, form by valve rod, supporting base and with the bellows that valve rod and supporting base are tightly connected; Valve rod, supporting base all adopt brass H80 material; And bellows adopts stainless steel 304 materials, owing to be two kinds of different materials, selects for use soldering that both are welded usually.In addition, can know according to figure: the end flat soldering that it is oppositely arranged the two ends actinal surface of bellows with valve rod, supporting base respectively, still; Because the wall thickness of bellows often has only 0.14mm; Bonding area seldom carries out soldering and is easy to cause Lou weldering like this, is difficult to reach sealing effect.
By on can know: electric utilities such as primary cut-out are for the high leak tightness demand of SF6 valve, because the limitation of existing technology often can not satisfy.
The model utility content
The utility model provides a kind of SF6 valve bellows component to the deficiency of existing technology, and it can avoid the mouth of pipe of bellows and the leakage between valve rod, the supporting base to weld effectively, thus the sealing and the working life of greatly improving bellows component.
For realizing above technical purpose, the utility model will be taked following technological scheme:
A kind of SF6 valve bellows component comprises valve rod, supporting base and bellows; Supporting base is fixedly connected with valve rod; And on the said valve rod annular flange flange is set; The valve rod that bellows is socketed between annular flange flange and the supporting base is peripheral; In the annular groove that the both ends of the surface that the two ends of bellows place annular flange flange and supporting base to be oppositely arranged are respectively accordingly offered, and fixing between bellows and the annular groove through the soldering welding.
According to above technological scheme, can realize following beneficial effect:
The utility model is through slotting assembly; Make bellows and annular groove carry out soldering; Increased the bonding area between bellows and valve rod and the supporting base, avoided effectively in the existing technology, because ripple mouth of pipe end face directly welds with face-face of supporting base, valve rod annular flange end face; The Lou generation of weldering phenomenon that causes, the sealing and the working life of greatly improving bellows component.
Description of drawings
Fig. 1 is the structural representation of common SF6 valve bellows component in the existing technology;
Fig. 2 is the structural representation of the said SF6 valve of the utility model bellows component;
Wherein: supporting base 1; Supporting base annular groove 11; Supporting base bellows 2; Valve rod annular flange flange 3; Stem ring connected in star 31.
Embodiment
Accompanying drawing discloses the structural representation of the related preferred embodiment of the utility model without limitation; Below will combine accompanying drawing that the technological scheme of the utility model at length is described.
As shown in Figure 2, the described SF6 valve of the utility model bellows component comprises valve rod, supporting base and bellows; Supporting base is fixedly connected with valve rod; And on the said valve rod annular flange flange is set; The valve rod that bellows is socketed between annular flange flange and the supporting base is peripheral; In the annular groove that the both ends of the surface that the two ends of bellows place annular flange flange and supporting base to be oppositely arranged are respectively accordingly offered, and fixing between bellows and the annular groove through the soldering welding.
Another technical purpose of the utility model provides a kind of production method of above-mentioned SF6 valve bellows component, may further comprise the steps: the both ends of the surface correspondence that (1) is oppositely arranged on the annular flange flange of valve rod and supporting base is respectively offered one group of annular groove; (2) adopt alcohol with the annular groove of being offered on valve rod flange, the supporting base and the ripple mouth of pipe clean, drying; (3) earlier soldering flux, brazing flux are injected in the annular groove of being offered on the supporting base; Insert bellows in this annular groove then; Soldering flux, brazing flux are heated to 320-340 ℃ can accomplish the fastening of this annular groove and bellows, obtain bellows-supporting base connection part; (4) annotate in the annular groove of at first on the annular flange flange of valve rod, being offered soldering flux, brazing flux; The supporting base of the bellows-supporting base connection part that then step (3) is obtained is socketed on the valve rod periphery; And make the mouth of pipe of bellows be plugged in the annular groove of being offered on the valve rod annular flange flange, soldering flux, brazing flux are heated to 320-340 ℃ get final product.
Because copper component and stainless thermal conductivity are different, can know according to process practice: when valve rod annular flange temperature was 330 ℃, 240 ℃ of supporting base temperature less thaies can not make supporting base and bellows break away from.
It is low that equipment that the utility model is related and technology have a cost, characteristics such as processed finished products rate height; Solve the technical problem that common soldering oven can not be realized processing or the processed finished products rate is very low dexterously, adapted to the production of small enterprise's small lot especially.
Claims (1)
1. a SF6 valve bellows component comprises valve rod, supporting base and bellows; Supporting base is fixedly connected with valve rod; And on the said valve rod annular flange flange is set; The valve rod that bellows is socketed between annular flange flange and the supporting base is peripheral; It is characterized in that, in the annular groove that the both ends of the surface that the two ends of bellows place annular flange flange and supporting base to be oppositely arranged are respectively accordingly offered, and fixing between bellows and the annular groove through the soldering welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204165895U CN202302280U (en) | 2011-10-27 | 2011-10-27 | Corrugated pipe component for SF6 valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204165895U CN202302280U (en) | 2011-10-27 | 2011-10-27 | Corrugated pipe component for SF6 valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302280U true CN202302280U (en) | 2012-07-04 |
Family
ID=46371175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204165895U Expired - Fee Related CN202302280U (en) | 2011-10-27 | 2011-10-27 | Corrugated pipe component for SF6 valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384310A (en) * | 2011-10-27 | 2012-03-21 | 江苏晨东机械制造有限公司 | Bellows assembly of SF6 valve and manufacturing method thereof |
-
2011
- 2011-10-27 CN CN2011204165895U patent/CN202302280U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384310A (en) * | 2011-10-27 | 2012-03-21 | 江苏晨东机械制造有限公司 | Bellows assembly of SF6 valve and manufacturing method thereof |
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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: 20120704 Termination date: 20141027 |
|
| EXPY | Termination of patent right or utility model |