CN2490375Y - High-temp. fixed ball valve - Google Patents
High-temp. fixed ball valve Download PDFInfo
- Publication number
- CN2490375Y CN2490375Y CN 01247128 CN01247128U CN2490375Y CN 2490375 Y CN2490375 Y CN 2490375Y CN 01247128 CN01247128 CN 01247128 CN 01247128 U CN01247128 U CN 01247128U CN 2490375 Y CN2490375 Y CN 2490375Y
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- China
- Prior art keywords
- valve
- seat
- valve seat
- spring
- pressing plate
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- Expired - Fee Related
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Abstract
The utility model discloses a high-temp fixed ball valve which comprises a valve body, a valve cover fixed on the valve body, a ball arranged in the valve body, a manifold branch and a lower valve rod arranged in the valve body and used to support the ball, a valve seat arranged between the ball and the valve cover, stuffing fixed on the outer surface of the valve seat, a spring arranged in the valve cover and a spring seat used to fix the spring; the utility model is characterized in that a platen is arranged between the valve seat and the spring seat, pressed on the stuffing and fixed the valve seat to make the valve seat, the stuffing and the platen integrated into a whole to make whole translational movements in the valve body; the utility model integrates the valve seat, the stuffing and the platen into a whole and makes a separation of compaction function to the stuffing and valve seat pre-compaction sealing function, the structure makes the compaction force on the stuffing controlled effectively, the elasticity of the spring makes good seals between the ball and the valve seat and decreases the abrasion on contact surfaces of the ball and the valve seat; the utility model is mainly taken as a pipeline cutoff valve or pressure, flow regulating valves in high temperature pipelines.
Description
Technical field
The utility model relates to a kind of ball valve, particularly relates to a kind of valve seat part of high temperature fixing ball valve.
Background technique
The high temperature fixing ball valve is widely used in industries such as petrochemical industry, light industry and metallurgy, and it is mainly as the pipeline block valve of high-temperature pipe device or pressure, flow control valve.
The high temperature fixing ball valve of prior art, comprise valve body, be fixed in the valve gap on the valve body, be arranged on the spheroid in the valve body, be arranged on the arm and the lower valve rod of supporting sephere in the valve body,, be arranged on the valve seat between spheroid and the valve gap by the upper valve rod that arm is connected with spheroid, be fixed on the filler of valve seat and valve cover chamber, be arranged on the interior spring of valve gap and the spring seat of fixing spring; Its principle is that the elastic force promotion spring seat of spring compresses filler, filler passes to valve seat with this elastic force, make it to contact and form initial sealing with spherome surface, the spring of this class formation should provide packing seal needed pressure, also will impose enough pressure to guarantee the sealing between valve seat and the spheroid to valve seat simultaneously.Calculate and the application in practice confirmation through theory: the impacting force that the packing seal of valve seat and valve cover chamber needs forms the spring thrust that initial sealing needs much larger than valve seat and spheroid.So just make spring be not enough to provide packing seal required impacting force, the ball valve of this structure can but be revealed because of the packing seal of valve seat and valve cover chamber and lose efficacy under the qualified situation of valve seat and ball seal.To cause valve seat and ball face sealing specific pressure excessive again as painstakingly strengthening spring force, valve switch moment is excessive, the surface of contact of spheroid and valve seat is is sharply worn and torn and consequence such as pulls; Be added in the spring size simultaneously and also can cause the valve mechanism size to increase, bring difficulty to design work.
The model utility content
The purpose of this utility model is to provide a kind of high temperature fixing ball valve at the defective of background technique, and this high temperature fixing ball valve can guarantee that the filler of valve seat and valve cover chamber is subjected to enough impacting forces, makes valve seat and valve cover chamber form good being sealed and matched.
The utility model comprises valve body, be fixed in the valve gap on the valve body, be arranged on the spheroid in the valve body, be arranged on the arm and the lower valve rod of supporting sephere in the valve body, the upper valve rod that is connected with spheroid by arm, be arranged on the valve seat between spheroid and the valve gap, be fixed on the filler of valve seat and valve cover chamber, be arranged on the interior spring of valve gap and the spring seat of fixing spring; It is characterized in that being provided with pressing plate between described valve seat and spring seat, described pressing plate is pushed down described filler, and described pressing plate is fixed on and makes described valve seat, filler and pressing plate be combined into one whole translation in valve body on the valve seat.
Above-mentioned filler can be resistant to elevated temperatures graphite packing, also can be resistant to elevated temperatures carbon fibre material.
Above-mentioned pressing plate and valve base chamber adopt screw, also can adopt thread connecting mode to fix.
Above-mentioned pressing plate and valve base chamber leave appropriate gap.
The utility model realizes that by different parts filler compresses the sealing of sealing and valve seat and spheroid, and can regulate the filler pre-pressing force easily by regulating pressing plate, make the filler impacting force be subjected to effective control, guaranteed the effective sealing between filler and the valve gap, also making simultaneously between spheroid and the valve seat can good seal and reduce wearing and tearing between its surface of contact; The utility model also has the advantage of processing and assembling convenience, reliable performance and long service life.
Description of drawings
Fig. 1 is a background technique valve seat part enlarged view;
Fig. 2 is a structural drawing of the present utility model;
Fig. 3 is the enlarged view of I among Fig. 2.
Embodiment
With reference to figure 1: be illustrated as background technique valve seat part structural drawing, all the other structures of background technique ball valve are identical with Fig. 2 except that valve seat part.
With reference to figure 2: illustrated high temperature fixing ball valve is in opening state.Valve body 5, valve gap 1-1 and 1-2 cast for the 25# forged steel.Spheroid 21 places in the valve body 5, and valve gap 1-1 and valve gap 1-2 all are fastenedly connected with valve body 5 by bolt 2. nuts 3, and between valve gap and valve body pad 4 are set; Valve body 5 tops fixedly arm 7 of socket head screw 12, arm 7 is provided with arm pad 6 with the junction of valve body 5, and arm 7 is provided with sliding bearing 14 with the cooperation place of spheroid 21; The bottom 15 of valve body 5 bottoms is fastening by bolt 16 and valve body 5, and bottom 15 is provided with Graphite pad 17 with the connecting part of valve body 5; Between bottom 15 and spheroid 21, lower valve rod 19 is set, is provided with at the surface of contact of lower valve rod 19 and bottom 15 and adjusts pad 18, arm 7 and lower valve rod 19 supporting sepheres 21, and make spheroid 21 can only be valve body 5 in serve as a rotation with arm 7 and lower valve rod 19.Upper valve rod 8 passes arm 7, and its lower end and spheroid 21 are fastenedly connected and make upper valve rod 8 can drive spheroid 21 rotations, and key 9 is set on upper valve rod 8.Gap 7 of upper valve rod 8 and arms is provided with stem packing 11, and stem packing 11 is compressed by Gland 10, to guarantee excellent sealing between upper valve rod 8 and the arm 7.Cooperation place at upper valve rod 8 bottoms and arm 7 is provided with thrust bearing 13.
With reference to figure 3: valve seat 22 is set in valve body 5, valve seat filler 28 is set at the outer surface and the valve cover chamber of valve seat 22, and pressing plate 23.The bump of pressing plate 23 outer rims compresses valve seat filler 28, and pressing plate 23 is tightened to one with valve seat 22 by screw 25 and spring pad 24, and described filler 28 adopts resistant to elevated temperatures graphite packing; Between valve gap 1-1,1-2 and spheroid 21, spring 27 is set, the spring seat 26 of support spring 27, spring seat 26 is pushed down pressing plate 23.When mounted, valve seat 22, valve seat filler 28 and pressing plate 23 be as a whole assembly, and pressing plate 23 and 22 of valve seats maintain appropriate gap.
Above-mentioned parts in the present embodiment all adopt exotic material to make.
During work: turn upper valve rod 8 drives spheroid 21 and rotates in valve body 5, can make the utility model close, open or regulate hole size; When reality is used, pressure medium in the through hole acts on the area difference that filler 28 external diameters and valve seat 22 sealed diameters are constituted, form the piston effect of valve seat 22 work, promote valve seat 22 and move and keep tightr the contact with sphere along the direction of arrow shown in Figure 3.
For a kind of improvement of the present utility model is that valve seat 22 is threaded with pressing plate 23 employings, promptly attacks internal thread on pressing plate 23, at the outer surface external threading of valve seat 22, can make filler 28 obtain satisfactory precompression by regulating pressing plate 23.
Under the condition that adheres to specification, pressing plate 23 also can be connected with valve seat 22 by other suitable mode.
Claims (6)
1, a kind of high temperature fixing ball valve, comprise valve body: be fixed in the valve gap on the valve body, be arranged on the spheroid in the valve body, be arranged on the arm and the lower valve rod of supporting sephere in the valve body, the upper valve rod that is connected with spheroid by arm, be arranged on the valve seat between spheroid and the valve gap, be fixed on the filler of valve seat and valve cover chamber, be arranged on the interior spring of valve gap and the spring seat of fixing spring; It is characterized in that being provided with pressing plate between described valve seat and spring seat, described pressing plate is pushed down described filler, and described pressing plate is fixed on and makes described valve seat, filler and pressing plate be combined into one whole translation in valve body on the valve seat.
2, high temperature fixing ball valve according to claim 1 is characterized in that described filler is resistant to elevated temperatures graphite packing.
3, high temperature fixing ball valve according to claim 1 is characterized in that described filler is resistant to elevated temperatures carbon fibre material.
4, high temperature fixing ball valve according to claim 1 is characterized in that described pressing plate and valve base chamber adopt screw.
5, high temperature fixing ball valve according to claim 1 is characterized in that described pressing plate and valve base chamber adopt thread connecting mode to fix.
6, according to claim 1,4 or 5 described high temperature fixing ball valves, it is characterized in that described pressing plate and valve base chamber maintain appropriate gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247128 CN2490375Y (en) | 2001-07-30 | 2001-07-30 | High-temp. fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247128 CN2490375Y (en) | 2001-07-30 | 2001-07-30 | High-temp. fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490375Y true CN2490375Y (en) | 2002-05-08 |
Family
ID=33658029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247128 Expired - Fee Related CN2490375Y (en) | 2001-07-30 | 2001-07-30 | High-temp. fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490375Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303348C (en) * | 2004-07-15 | 2007-03-07 | 浙江大学 | Conical surface hard seal ball valve |
| CN100434838C (en) * | 2003-10-10 | 2008-11-19 | 株式会社山武 | Air conditioner controlling system and constant flow electric valve |
| US7635113B2 (en) | 2004-07-15 | 2009-12-22 | Swagelok Company | Ball valve seat arrangement |
| CN102486236A (en) * | 2010-12-03 | 2012-06-06 | 浙江正华阀门厂 | Triple seal pipeline ball valve for integrated elastic metal valve seat |
| CN102537400A (en) * | 2010-12-16 | 2012-07-04 | 江苏江恒阀业有限公司 | Anti-crystallization anti-scaling abrasion-resisting ball valve |
| CN104265941A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Metal hard sealing plug valve with filter screen |
| CN106895172A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | New pressure transmitting type ball valve |
| CN106931183A (en) * | 2015-12-31 | 2017-07-07 | 世界先进积体电路股份有限公司 | Choke valve |
| CN109882656A (en) * | 2019-04-08 | 2019-06-14 | 江苏神通阀门股份有限公司 | A kind of used at ultra-low temperature upper-mounting type ball valve valve seat construction |
-
2001
- 2001-07-30 CN CN 01247128 patent/CN2490375Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434838C (en) * | 2003-10-10 | 2008-11-19 | 株式会社山武 | Air conditioner controlling system and constant flow electric valve |
| CN1303348C (en) * | 2004-07-15 | 2007-03-07 | 浙江大学 | Conical surface hard seal ball valve |
| US7635113B2 (en) | 2004-07-15 | 2009-12-22 | Swagelok Company | Ball valve seat arrangement |
| CN102486236A (en) * | 2010-12-03 | 2012-06-06 | 浙江正华阀门厂 | Triple seal pipeline ball valve for integrated elastic metal valve seat |
| CN102537400A (en) * | 2010-12-16 | 2012-07-04 | 江苏江恒阀业有限公司 | Anti-crystallization anti-scaling abrasion-resisting ball valve |
| CN104265941A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Metal hard sealing plug valve with filter screen |
| CN106895172A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | New pressure transmitting type ball valve |
| CN106931183A (en) * | 2015-12-31 | 2017-07-07 | 世界先进积体电路股份有限公司 | Choke valve |
| CN106931183B (en) * | 2015-12-31 | 2019-02-01 | 世界先进积体电路股份有限公司 | Throttle valve |
| CN109882656A (en) * | 2019-04-08 | 2019-06-14 | 江苏神通阀门股份有限公司 | A kind of used at ultra-low temperature upper-mounting type ball valve valve seat construction |
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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 |