CN1924413A - Granule resistant bidirectional metal sealing ball valve - Google Patents
Granule resistant bidirectional metal sealing ball valve Download PDFInfo
- Publication number
- CN1924413A CN1924413A CN 200510029243 CN200510029243A CN1924413A CN 1924413 A CN1924413 A CN 1924413A CN 200510029243 CN200510029243 CN 200510029243 CN 200510029243 A CN200510029243 A CN 200510029243A CN 1924413 A CN1924413 A CN 1924413A
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- valve body
- metal
- fixed groove
- valve
- ball valve
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Abstract
This invention relates to metal sealed sphere valve, which comprises valves, wherein, the sphere part is driven by valve axis and matched and removed with said valve and the said valve sealed ring is fixed inside stator tank with metal sealed ring at the contact position; the said sealing ring inner radium metal slices are overlapped into one inclination sticking out of fix tank and sphere part; the said metal ring slice fringe is located inside fix tank.
Description
Technical field
The present invention relates to a kind of ball valve, relate to bidirectional metal sealing ball valve especially.
Background technique
Ball valve is to use the spheroid that has manhole as open-shut device, drives lower sphere at valve rod and does the rotation of 0-90 degree around the valve rod center, finishes the keying function.The ball valve volume is little, in light weight, simple in structure, and has switch characteristics rapidly, rotates 90 degree, gets final product throttle down, cuts off the pipeline medium.The spheroid channel diameter is general identical with pipeline diameter, and flow resistance is little, and negotiability is big.
The tetrafluoroethylene sealing is adopted in the sealing of spheroid and valve seat more in the existing ball valve, because the tetrafluoroethylene material can't withstand high temperatures, high pressure, therefore, the ball valve Applicable temperature of present nonmetal sealing generally only between≤150 ℃, makes it the application and is subjected to great restriction.
For solving the limited defective of tetrafluoroethylene sealing applications occasion, existing ball valve has also adopted metallic seal, be that spheroid directly contacts with valve seat, metallic seal has Applicable temperature height, corrosion resistant advantage, yet, because metallic sealing section is the rigidity contact, the processing request height, after the frequent unlatching of spheroid, sealability descends.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of metal seal ball valve, wherein is sealed into elastic packing between spheroid and the valve seat, and can form multiple-sealedly, has improved the sealability of valve, simultaneously Sealing change convenient.
For this reason, metal seal ball valve provided by the present invention comprises valve body, and spheroid is cooperated with described valve body by the valve shaft drive or breaks away from, and in described spheroid and described valve body contacting point, is provided with metallic packing ring in the seal ring fixed groove on the described valve body; It is characterized in that described seal ring is formed by stacking by the metal ring plate that internal diameter has nothing in common with each other, and the inner edge of described metal ring plate is overlapped into an inclined-plane and stretches out described fixed groove and contact with described spheroid, the outer rim of described metal ring plate is arranged in described fixed groove.
Preferably, described valve body is the 3 stops valve body, and center valve body and both sides valve body form described seal ring fixed groove.
Preferably, the outer rim of described multi-disc metal ring plate interfixes.
Preferably, the wall of described multi-disc metal ring plate outer rim and described fixed groove is gapped.
Preferably, described valve body is the two section type valve body, offers described seal ring fixed groove on valve body, and described metal ring plate outer rim is arranged in described fixed groove.
Preferably, also be provided with the O RunddichtringO in the described fixed groove.
Compared with prior art, in the present invention, metallic packing ring is formed by stacking by the metal ring plate that the multi-disc internal diameter has nothing in common with each other, and the inner edge of metal ring plate is overlapped into an inclined-plane and contacts with spheroid, the outer rim of metal ring plate is arranged in fixed groove, the seal ring that stretches out fixed groove like this forms cantilever-shaped, when it contacts with spheroid, make contacting between seal ring and the spheroid form Elastic Contact, the resiliently deformable of tinsel provides the even seal pressure between metal ring plate and the spherome surface, and multi-disc metal ring plate and spherome surface form multiple-sealed, improved the sealability of valve, and the multi-disc ring plate can separate, and therefore therefore disassembling, assembling and replacing seal ring at the scene can guarantee the sealed precision of valve.。
Description of drawings
Fig. 1 is the sectional view of metal seal ball valve of the present invention;
Fig. 2 is the partial enlarged drawing of middle sealing contact surface embodiment illustrated in fig. 1.
Embodiment
Shown in Figure 1 is the sectional view of metal seal ball valve of the present invention, this metal seal ball valve comprises valve body 1, spheroid 2 is cooperated with described valve body by valve shaft 3 drives or breaks away from, and in described spheroid and described valve body contacting point, is provided with metallic packing ring 5 in the seal ring fixed groove 4 on the described valve body.Specifically as shown in Figure 2, seal ring 5 is formed by stacking by the metal ring plate 51 that internal diameter has nothing in common with each other, and the inner edge of described metal ring plate is overlapped into an inclined-plane 52 and stretches out described fixed groove and contacts with described spheroid 2, and the outer rim of described metal ring plate is arranged in described fixed groove 4.
Adopt as above structure, the end that each metal ring plate is superimposed together and it forms the inclined-plane stretches out outside the fixed groove 4 and contacts with spheroid 2, each metal ring plate forms a cantilever structure like this, and owing to be not rigidly connected between each ring plate, therefore, the resiliently deformable when the metal ring plate contacts with spheroid provides the elastic packing between seal ring and the sphere, its seal pressure is even, simultaneously, also formed multiple-sealedly between multi-disc metal ring plate and the spheroid, improved the sealability of valve.
Preferably, in the present invention, slide mutually, can be fixed together at the peripheral edge portion of metal ring plate in order to prevent multi-disc metal ring plate 41.
In addition, in the present invention, slide mutually and prevent pipeline internal medium seepage outside the seal ring fixed groove is like, also on fixed groove, be provided with O RunddichtringO 6 in order further to prevent multi-disc metal ring plate 41.
Simultaneously, in the present invention, the outer rim of seal ring is left fixing cell wall to be had certain for I.
Seal ring of the present invention is adding man-hour, can be earlier the outer rim of multi-disc tinsel be welded together, and forms a superimposed ring, yet the endoporus of ring is processed the inclined-plane that can cooperate with spheroid.
By said structure of the present invention, metallic seal can be improved to Elastic Contact by the rigidity contact, when long-term use sealing descended, it was close with spheroid to regulate sealing one ring, can recover sealability simultaneously; Equally, in when maintenance, can on-the-spot disassembling, assembling and replacing seal ring, need not special tool(s).
Claims (6)
1. a metal seal ball valve comprises valve body, and spheroid is cooperated with described valve body by the valve shaft drive or breaks away from, and in described spheroid and described valve body contacting point, is provided with metallic packing ring in the seal ring fixed groove on the described valve body; It is characterized in that described seal ring is formed by stacking by the metal ring plate that internal diameter has nothing in common with each other, and the inner edge of described metal ring plate is overlapped into an inclined-plane and stretches out described fixed groove and contact with described spheroid, the outer rim of described metal ring plate is arranged in described fixed groove.
2. metal seal ball valve as claimed in claim 1 is characterized in that, described valve body is the 3 stops valve body, and center valve body and both sides valve body form described seal ring fixed groove.
3. metal seal ball valve as claimed in claim 1 is characterized in that, the outer rim of described multi-disc metal ring plate interfixes.
4. metal seal ball valve as claimed in claim 1 is characterized in that, the wall of described multi-disc metal ring plate outer rim and described fixed groove is gapped.
5. metal seal ball valve as claimed in claim 1 is characterized in that described valve body is the two section type valve body, offers described seal ring fixed groove on valve body, and described metal ring plate outer rim is arranged in described fixed groove.
6. metal seal ball valve as claimed in claim 1 is characterized in that, also is provided with the tetrafluoroethylene sealing gasket in the described fixed groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029243 CN1924413A (en) | 2005-08-31 | 2005-08-31 | Granule resistant bidirectional metal sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029243 CN1924413A (en) | 2005-08-31 | 2005-08-31 | Granule resistant bidirectional metal sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1924413A true CN1924413A (en) | 2007-03-07 |
Family
ID=37817158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510029243 Pending CN1924413A (en) | 2005-08-31 | 2005-08-31 | Granule resistant bidirectional metal sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1924413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996832A (en) * | 2011-05-27 | 2013-03-27 | 沙索技术有限公司 | Solids-handling equipment |
-
2005
- 2005-08-31 CN CN 200510029243 patent/CN1924413A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996832A (en) * | 2011-05-27 | 2013-03-27 | 沙索技术有限公司 | Solids-handling equipment |
| CN102996832B (en) * | 2011-05-27 | 2015-10-14 | 沙索技术有限公司 | Solids disposal facilities |
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| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |