CN201293116Y - Ceramic core ball valve - Google Patents
Ceramic core ball valve Download PDFInfo
- Publication number
- CN201293116Y CN201293116Y CNU2008201551143U CN200820155114U CN201293116Y CN 201293116 Y CN201293116 Y CN 201293116Y CN U2008201551143 U CNU2008201551143 U CN U2008201551143U CN 200820155114 U CN200820155114 U CN 200820155114U CN 201293116 Y CN201293116 Y CN 201293116Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- ceramic
- valve body
- ceramic gasket
- 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 relates to a valve structure, in particular to a ceramic core ball valve which comprises a valve body (1), a valve seat (2), a valve core (3) and a valve rod (5), wherein the valve core (3) is fixed at the bottom of the valve rod (5), the top of the valve rod (5) is connected with a handle (12), and a sealing part (4) is arranged between the valve core (3) and the valve body (1); the valve core (3) is a polished ceramic core, a ceramic gasket (13) is fixed on the valve rod (5), and a ceramic gasket (8) is fixed in the valve body (1); the ceramic gasket (8) and the ceramic gasket (13) are assembled and attached, and the attaching surfaces adopt mirror polished surfaces. The utility model has the advantages of product cleanness, light switching, scarce leakage, simple processing, mass manufacture, high temperature resistance, acid and alkali resistance, low cost and durability, decreases the upper part size of the valve body by more than a half, greatly reduces resistance and electrostatic conduction and takes the fireproof and anti-electrostatic effects.
Description
Technical field
The utility model relates to valve arrangement, especially a kind of porcelain core ball valve.
Technical background
Ball valve is a kind of valve that comes out 1950's, and in the semicentennial time, ball valve has developed into a kind of main valve class.Ball valve is mainly used in and blocks or connect medium, also can be used for the adjusting and the control of fluid, and the V-type ball valve can compare accurate Flow-rate adjustment and control, and tee ball valve then is used for distribution media and changes the flow direction of medium.Compare with other valve class, ball valve has some following advantages: 1, fluid resistance is little, and ball valve is a kind of of fluid resistance minimum in all valve classes, even the undergauge ball valve, its fluid resistance is also quite little.2, switch rapidly, conveniently needs only valve rod and rotates 90 °, and ball valve has just been finished standard-sized sheet or complete shut-down action, is easy to realize fast opening and closing.3, good seal performance.The ball seat seal ring generally adopts the manufacturing of teflon elastomeric material, be easy to guarantee sealing, and the sealing force of ball valve increases along with the increase of pressure medium.4, valve stem seal is reliable.Valve rod only rotated when ball valve opened and closed, so the packing seal of valve rod is difficult for destroyedly, and the sealing force of valve rod back seal increases along with the increase of pressure medium.5,90 ° of rotations are only done in the keying of ball valve, so realize automation control and distant control, the configurable Pneumatic actuator of ball valve, Electric actuator, Hydraulic actuator, gas-liquid linked device or electric liquid linkage easily.6, the ball valve passage is smooth smooth, is difficult for deposition medium, can carry out pipeline through ball.Nominal pressure or pressure level: PN1.0-32.0MPa, ANSI CLASS 150-900, JIS10-20K inside nominal diameter or bore: DN6～900, NPS 1/4～36 Placement: flange, butt welding, screw thread, Applicable temperatures such as SOCKET WELDING :-196 ℃～540 ℃ driving mode: manually, the worm and gear transmission, pneumatic, electronic, surge, gas-liquid linked, electricity liquid linkage valve material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (304L), CF8M (316), CF3M (316L), Ti.Select different materials for use, can be applicable to multiple media such as water, steam, oil product, nitric acid, acetic acid, Oxidant, urea respectively.
But traditional ball valve also has narrow limitation, and along with the frequent switch pole of valve rod core is prone to leakage, reason has following several respects: the valve rod core often rotates and the loss that causes, and the powder that loss forms is transmitted to removes contaminated liquid and medium in the inner chamber; The polytetrafluoroethylmaterial material that adopts is because of friction generates heat, and the loss aggravation need often be installed additional, has added that then the valve rod switch is dumb, often damage.
Summary of the invention
The technical problem of the required solution of the utility model provides a kind of gland structure compactness, and resistance is little, the porcelain core ball valve of easy-to-operat.
The scheme that the utility model solves the problems of the technologies described above is: a kind of porcelain core ball valve, comprise valve body, valve seat, spool and valve rod, stem bottom and spool are fixed, and the valve rod top connects handle, is provided with Sealing between spool and valve body, wherein, spool adopts the polishing porcelain core, fixing ceramic gasket on valve rod, valve body internal fixation ceramic gasket, assembling back two ceramic gaskets are fitted, and faying surface adopts the bright finishing face.
On the such scheme basis, on the reverse surface of contact of valve body and valve rod, be provided with fiberglass packing, to increase the sealing of ball valve.
For preventing that covering crushing hinders ceramic gasket, installs cushion pad above ceramic gasket.
Superiority of the present utility model is: install ceramic gasket additional as Sealing on traditional valve products, make valve product cleaning, light, the difficult leakage of switch, make in batches, cost is low, durable.
Compare with traditional valve products have high temperature resistant, acid resistant alkali, long service life, processing is simple, and upper volume is reduced over half.Reduce the conduction of resistance and static greatly, play the effect of fire prevention, antistatic.And make valve body and the zero leakage of valve rod joint, and life-saving, cost is low, reduces nearly more than one times.
Description of drawings
Fig. 1 is a porcelain core ball-valve structure schematic representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Label declaration in the accompanying drawing
1-valve body 2-valve seat 3-spool
4-Sealing 5-valve rod 6-Sealing
7-fiberglass packing 8,13-ceramic gasket 9-gland
10,11-Sealing 12-handle 14-valve body
Embodiment
Seeing also Fig. 1 is that porcelain core ball-valve structure schematic representation of the present utility model and Fig. 2 are shown in the partial enlarged drawing of Fig. 1, a kind of porcelain core ball valve, comprise valve body 1, valve seat 2, spool 3 and valve rod 5, valve rod 5 bottoms and spool 3 are fixing, valve rod 5 tops connect handle 12,1 of spool 3 and valve body are provided with Sealing 4, Sealing 6 is arranged between valve seat 2 and valve body, 5 Sealings 10 of gland 9 and valve rod, 11, wherein, spool 3 adopts the polishing porcelain core, fixing ceramic gasket 13 on valve rod 5, valve body 14 internal fixation ceramic gaskets 8, assembling back two ceramic gaskets 8,13 fit, and faying surface adopts the bright finishing face.
On the reverse surface of contact of valve body 14 and valve rod 5, be provided with fiberglass packing 7, increase sealing, reach zero leakage.
When compressing ceramic gasket 13 is caused damage, add installing cushion pad 15 at the two for anti-gland 9.
In the present embodiment, porcelain core 3 is the polishing porcelain core of completion of processing, and ceramic gasket 8,13 is fixed on ceramic gasket 8 in the valve body 14 by shrinkage.Ceramic gasket 13 is fixed on the valve rod 5.When opening handle 12, it is motionless that ceramic gasket 13 is transferred ceramic gasket 8, reaches the effect of sealing, consumption reduction and minimizing resistance, and be provided with fiberglass packing 7 on the reverse surface of contact of valve body 14 and valve rod 5.Installing cushion pad 15 is with antisitic defect above pottery, and easy to operate, processing is simple, is widely used in oil, chemical industry, pharmacy, biology at present, and it is also very convenient to change.
In addition, the utility model adopts the ceramic gasket sealing in gland seal, have compact structure, and resistance is little, utmost point easy-to-operat.Substitute the existing kind of tradition, it is little to have a volume, and resistance is little, is specially adapted to submarine, makes not only acid-and base-resisting of valve, seawater like this, and uses lightly, and resistance is little, and not easy to wear, greatly reduces product and maintenance cost.
Claims (3)
1, a kind of porcelain core ball valve, comprise valve body (1), valve seat (2), spool (3) and valve rod (5), valve rod (5) bottom is fixing with spool (3), valve rod (5) top connects handle (12), is provided with Sealing (4) between spool (3) and valve body (1), it is characterized in that: spool (3) adopts the polishing porcelain core, go up fixedly ceramic gasket (13) at valve rod (5), valve body (14) internal fixation ceramic gasket (8), assembling back two ceramic gaskets (8,13) are fitted, and faying surface adopts the bright finishing face.
2, porcelain core ball valve according to claim 1 is characterized in that: be provided with fiberglass packing (7) on the reverse surface of contact of valve body (14) and valve rod (5).
3, porcelain core ball valve according to claim 1 and 2 is characterized in that: at ceramic gasket (13) top installing cushion pad (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201551143U CN201293116Y (en) | 2008-11-07 | 2008-11-07 | Ceramic core ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201551143U CN201293116Y (en) | 2008-11-07 | 2008-11-07 | Ceramic core ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293116Y true CN201293116Y (en) | 2009-08-19 |
Family
ID=41006593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201551143U Expired - Fee Related CN201293116Y (en) | 2008-11-07 | 2008-11-07 | Ceramic core ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293116Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806375A (en) * | 2010-04-12 | 2010-08-18 | 陈建成 | Valve rod leak-proof structure |
| CN101893116A (en) * | 2010-06-23 | 2010-11-24 | 兰州理工大学温州泵阀工程研究院 | Self-sealing device of three-way ball valve |
-
2008
- 2008-11-07 CN CNU2008201551143U patent/CN201293116Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806375A (en) * | 2010-04-12 | 2010-08-18 | 陈建成 | Valve rod leak-proof structure |
| CN101893116A (en) * | 2010-06-23 | 2010-11-24 | 兰州理工大学温州泵阀工程研究院 | Self-sealing device of three-way ball valve |
| CN101893116B (en) * | 2010-06-23 | 2012-11-14 | 兰州理工大学温州泵阀工程研究院 | Self-sealing device of three-way ball valve |
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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: 20090819 Termination date: 20091207 |