CN2294360Y - High temp. ceramic ball valve - Google Patents
High temp. ceramic ball valve Download PDFInfo
- Publication number
- CN2294360Y CN2294360Y CN 96232175 CN96232175U CN2294360Y CN 2294360 Y CN2294360 Y CN 2294360Y CN 96232175 CN96232175 CN 96232175 CN 96232175 U CN96232175 U CN 96232175U CN 2294360 Y CN2294360 Y CN 2294360Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- high temp
- utility
- model
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000011214 refractory ceramic Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 2
- 239000007769 metal material Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a high temp. ceramic ball valve, which belongs to the mechanical field, and comprises a valve body made of high temp. resistant metal, and a lining ring, a ball and two valve seats, which are made of structural ceramics. The difference of the utility model and the prior art mainly lies in that the high temp. ceramic ball valve takes the axial line of a valve rod as a center and major parts which are positioned on the left and the right of the center are completely symmetrical. The hard seal of the valve seats and the ball is realized by that two symmetrical stud bolts which are locked presses a cushion, the lining ring, the valve seats on the ball and a valve rod can be normally opened and closed. Compared with the prior art, the utility model has the advantage of simpler and more compact structure. Because of the unique structure and reliable sealing performance, the utility model can be more reasonably assembled and more easily manufactured, and media can not enter the gaps of ceramic elements and metal elements. The high temp. ceramic ball valve is especially suitable for high temp. occasions with corrosive media.
Description
The utility model relates to a kind of refractory ceramics ball valve.
Present ceramic ball valve, it mostly is the imitated or improvement of metal ball-valve greatly.The ceramic part stress is bad, and the manufacturability of manufacturing is poor, is difficult for assembling.Medium can enter the gap of ceramic fitting and metal valve body in the valve, causes the valve body metal erosion.Product incompatibility high temperature corrosion medium occasion.
The purpose of this utility model is to propose a kind of new type high temperature ceramic ball valve, and it is simple in structure, compact, is easy to make, and the ceramic fitting stress is good.Overcome the disadvantage that aggressive medium enters ceramic fitting and metalwork gap.The part that contacts with medium is all the material of corrosion-and high-temp-resistant, and sealability is reliable, and product can adapt to high temperature corrosion medium occasion.
The utility model adopts whole refractory metal valve body, and lining ring that structural ceramics makes, two valve seats, ball are arranged in the valve body, can make ball become the hard sealing of precision with two valve seats to the precision machining of ceramic fitting.Screw the locking double-screw bolt on both sides, compress the Expanded graphite cushion of corrosion-and high-temp-resistant, the end face by the lining ring both sides, two valve seats, ball form the hard sealing of valve seat and ball.This cushion has also stoped aggressive medium to infiltrate the internal surface of metal valve body, and aggressive medium also can't pass the cushion that compressed by the very narrow exterior edge face of two valve seats and contacts with metal locking double-screw bolt, valve body; Valve rod is a refractory metal, the sheath that the position that is connected with ball has the protection valve rod not to be corroded.Ball deflector when the ball bottom has mandrel to prevent that valve rod from rotating.Valve stem seal adopts existing ripe stuffing box structure, compresses packing ring by gland---high temperature corrosion-resisting Expanded graphite ring, can realize high-quality axle envelope.
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described.
Figure-1. refractory ceramics ball valve sectional view.
Description of drawings
The utility model comprises the valve body (3) of an integral body, in a lining ring (4), ball (7) are arranged, the locking double-screw bolt (5) that it is characterized in that two symmetries, the valve seat of two symmetries (6), cushion of two symmetries (9) and ball (7) are formed accurate hard sealing, and the start-stop performance of maintenance valve rod (1), there are valve rod (1), sheath (2), filler (10), gland (11), handle (12) and bottom mandrel (8) to form the shaft sealing and the manual opening-closing mechanism of valve rod (1) on the top of ball (7).The user also can adopt electronic, pneumatic opening/closing mechanism as required.
The modern structure pottery can be aluminium oxide, zirconium oxide, silicon nitride and silicon carbide etc., and can add an amount of Expanded graphite in the structural ceramics of valve seat, ball, so that its surface friction coefficient reduces.
The utility model refractory ceramics ball valve compared with prior art, by scheme-1. finding out with the valve rod axis is the center, drawing about it, part (except that gland, handle) are symmetrical fully, this just makes ceramic fitting of the present utility model have better stress, more compact structure is reasonable, has better manufacturing assembling.And all materials all can be high temperature resistant to about 500 ℃, the material that contacts with medium is withstand corrosion again, therefore the utility model is applicable to the occasion of industry, especially high temperature such as petrochemical industry, papermaking, pharmacy, food, aggressive medium, and its life-span is 2～5 times of high-temperature metal valve.
Claims (3)
1. refractory ceramics ball valve, the valve body (3) that comprises an integral body, in a lining ring (4), ball (7) are arranged, the locking double-screw bolt (5) that it is characterized in that two symmetries, the valve seat of two symmetries (6), cushion of two symmetries (9) and ball (7) are formed accurate hard sealing, and the start-stop performance of maintenance valve rod (1), there are valve rod (1), sheath (2), filler (10), gland (11), handle (12) and bottom mandrel (8) to form the shaft sealing and the manual opening-closing mechanism of valve rod (1) on the top of ball (7).
2. according to the described refractory ceramics ball valve of claim 1., it is characterized in that: cover, mandrel can be corrosion-resistant metal materials or structural ceramic material, add an amount of Expanded graphite in the structural ceramics prescription of making ball, valve seat, and its surface friction coefficient is reduced.
3. according to the described refractory ceramics ball valve of claim 1., it is characterized in that: structural ceramic material can be aluminium oxide, zirconium oxide, silicon nitride or silicon carbide etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232175 CN2294360Y (en) | 1996-06-28 | 1996-06-28 | High temp. ceramic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232175 CN2294360Y (en) | 1996-06-28 | 1996-06-28 | High temp. ceramic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2294360Y true CN2294360Y (en) | 1998-10-14 |
Family
ID=33909178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232175 Expired - Fee Related CN2294360Y (en) | 1996-06-28 | 1996-06-28 | High temp. ceramic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2294360Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365333C (en) * | 2003-06-27 | 2008-01-30 | 株式会社安国阀门 | ball valve |
| CN102401147A (en) * | 2011-08-25 | 2012-04-04 | 圣博莱阀门有限公司 | Split type zero clearance micro-capacity spherical valve |
-
1996
- 1996-06-28 CN CN 96232175 patent/CN2294360Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365333C (en) * | 2003-06-27 | 2008-01-30 | 株式会社安国阀门 | ball valve |
| CN102401147A (en) * | 2011-08-25 | 2012-04-04 | 圣博莱阀门有限公司 | Split type zero clearance micro-capacity spherical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |