CN201705982U - High-temperature wear-resistant ball valve - Google Patents
High-temperature wear-resistant ball valve Download PDFInfo
- Publication number
- CN201705982U CN201705982U CN2010202922580U CN201020292258U CN201705982U CN 201705982 U CN201705982 U CN 201705982U CN 2010202922580 U CN2010202922580 U CN 2010202922580U CN 201020292258 U CN201020292258 U CN 201020292258U CN 201705982 U CN201705982 U CN 201705982U
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- valve
- valve body
- seal
- hard
- valve seat
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Abstract
The utility model relates to a high-temperature wear-resistant ball valve, which is composed of a valve body, a valve core, an opening and closing shaft and sealed valve seats, wherein the valve body is arranged into an upper valve body, a middle valve body and a lower valve body; the hollow cavity of the middle valve body is provided with a ball-shaped valve core; the upper valve body and the lower valve body are respectively provided with a sealed valve seat; the opening and closing shaft penetrates through the valve body, and is arranged on both sides of the valve core; the valve core adopts a single-passage fixed structure, a structure with corrosion resistance and wear resistance is utilized, and the surface of the valve core is sprayed with tungsten carbide with the thickness of 1-2 mm; the sealed valve seat is composed of hard seal and soft seal; the first sealed valve seat is the hard seal and is made from the tungsten carbide; the second sealed valve seat is the soft seal and is made from the metal graphite; the soft seal is combined with the hard seal, so the sealing property of the valve is ensured. The density grade of the valve is high, the zero leakage can be reached, the middle flange is newly added, the space of the inner cavity of the valve body is properly increased, and the valve core and the valve seat are respectively made from the tungsten carbide, so the service life is prolonged, the inconvenience caused by the limitation of the installation direction is eliminated, and the valve can bear the high temperature.
Description
Technical field
The utility model relates to valve, refers in particular to the high-temperature wearable ball valve after the improvement.
Background technique
Its seal arrangement of Fixed ball valve domestic and import is generally soft seal or hard sealing at present, the soft seal Fixed ball valve is in use easy to wear, working life is not high, in the Environmental Conditions that contains solid particle and impurity, seal arrangement very easily damages, and general soft seal can not be born high temperature.Though and hard sealing and fixing type ball valve seal arrangement has certain wear-resisting, anti-scouring capability, its sealability is undesirable.
Summary of the invention
The purpose of this utility model is improved, is innovated at shortcoming that exists in the background technique and problem, provide a kind of simple in structure, cost is low, adapt to various particular job environment, particularly contain solid particle, impurity, high temperature, high pressure, the high-temperature wearable ball valve of the demanding working environment of sealability.
The technical solution of the utility model is a kind of ball valve of being made up of valve body, spool, opening-closing shaft and seal valve seat of structure, is characterized in:
Valve body is set to body of laws and following valve body in the upper valve body, and the cavity of middle valve body is provided with the ball-type spool, and valve body respectively is provided with a seal valve seat up and down, and opening-closing shaft passes valve body and is arranged on the spool both sides;
Described spool is the single channel stationary structure, adopts to have anticorrosive and wear-resistant structure, and the thick Tungsten carbite of surface spraying 1-2mm;
Described seal valve seat is combined by hard sealing and soft seal, and wherein first road is hard sealing, and material therefor is a Tungsten carbite, and second road is soft seal, and material therefor is a metallic graphite carbon, and the soft or hard combination has guaranteed the sealability of valve.
Advantage of the present utility model and beneficial effect:
1, make valve density rating height can reach zero leakage; The advantage of 2, having assembled hard soft seal, being used to have improved greatly of metallic graphite carbon and Tungsten carbite resistance to worn and corrosion resistance, simultaneously also improved working life and sealability, and made valve Applicable scope wider (as long as rational selection can be fit to most media); 3, increased middle flange newly, suitable increasing the body cavity space, make medium that enough activity spaces be arranged in valve body, make it to eliminate the stuck and switch phenomenon not in place of valve; 4, spool and valve seat all are tungsten carbide material, have therefore prolonged working life, and switch is 200,000 times; 5, two way sealed mode, medium can be gone into from any one party surface current, has eliminated the inconvenience that the qualification because of installation direction brings; 6, all sealed members all adopt Expanded graphite, make valve can bear high temperature.
Description of drawings
Fig. 1 is the utility model erection drawing.
Fig. 2 is the seal valve seat partial enlarged drawing.
Among the figure: 1, rotating shaft; 2, Gland; 3, insertion ring; 4, shaft supporting seat; 5, stationary ring; 6, rotating ring; 7, axle sleeve; 8, the graphite circle 1; 9, the graphite circle 2; 10, middle valve body; 11, valve seat pressure cap; 12, valve seat cap; 13, the graphite circle 3; 14, soft seal ring; 15, soft valve seat; 16, planar spring; 17, butterfly spring; 18, hard valve seat; 19, answer seal ring; 20, the fillet of screw; 21, the graphite circle 4; 22, hard valve seat; 23, the graphite circle 5; 24, compressing tablet; 25, valve body; 26, axle sealed cover; 27, the graphite circle 6; 28, support shaft-cup; 29, support axle pad; 30, back shaft; 31, graphite pads; 32, spool; 33, following valve body.
Embodiment
By Fig. 1,2 as can be known, the utility model is made up of valve body, spool, opening-closing shaft and seal valve seat;
Valve body is set to valve body 10 and following valve body 33 in the upper valve body 25, and the cavity of middle valve body is provided with ball-type spool 32, and valve body respectively is provided with a seal valve seat up and down, and opening-closing shaft passes valve body and is arranged on spool 32 both sides;
Described spool 32 is the single channel stationary structure, adopts to have anticorrosive and wear-resistant structure, and the thick Tungsten carbite of surface spraying 1-2mm;
Described seal valve seat is combined by hard sealing and soft seal, and wherein first road is hard sealing, and material therefor is a Tungsten carbite, and second road is soft seal, and material therefor is a metallic graphite carbon, and the soft or hard combination has guaranteed the sealability of valve.
Seal valve seat described in the utility model comprises hard seal valve pedestal 22, soft seal valve body 15, planar spring 16, butterfly spring 17, soft seal ring 14, hard valve seat cover 18, hard seal ring 19 and graphite circle 13 valve seat pressure caps 11, valve seat gland 12, the fillet of screw 20 graphite circles 21, wherein hard seal valve pedestal 22 is located between spool 32 runner mouths and the valve interior wall, soft seal valve body 15 is located at hard seal valve pedestal 22 outer rings, soft seal ring 14, graphite circle 13 is located between hard seal valve pedestal 4 and the soft seal valve body 3, valve seat pressure cap 12 is located at the end of soft seal valve body 15 and soft seal ring 14, graphite circle 26 is arranged on hard seal valve pedestal 22 and soft seal valve body 15 1 ends, planar spring 16 is located between soft valve body 15 and the upper valve body 25, and butterfly spring 17 is located at soft seal valve body 15 and becomes between the upper valve body 25 with hard seal valve pedestal 22 assemblying bodys.Described seal valve seat is symmetricly set on the two ends of upper valve body 25 and following valve body 33 inside, spool 32 runner mouths, by initial tension of spring and the pressure medium valve seat automatic capturing and the spool of fitting.Described opening-closing shaft comprises rotating shaft 1 and back shaft 30, its shaft 1 pivot movable valve plug 32 rotary opening and closing valves, and rotating shaft 1 and back shaft 30 opposition are arranged on pressure medium lower valve core 32 and can produce skew, have reduced the moment of torsion that valve produces in opening-closing process.Described all sealed members all adopt Expanded graphite, can bear the high temperature that medium brings.
Hard seal valve seat in the hard soft combination seal valve seat of the utility model separated type is under the effect of medium, make hard seal valve seat be close on the spool and the automatic capturing centre of sphere, this moment, hard seal valve seat was subjected to the effect of two power: 1, the annulus area of the hard seal valve seat of pressure * of the pressure F=medium of medium; 2, the pretightening force Q(of elastic sealing strip is fixed by design).
These two power are formed between sealing force (surface friction drag of having ignored some Sealings) the soft seal valve seat that seals between soft seal valve seats and the spool and the hard seal valve seat and the sealing of valve body is that the Expanded graphite pad guarantees.
Stack valve seat realizes under the effect of the pressure of medium and elastic sealing strip pretightening force and the sealing of spool when valve closing, and the sealing of hard soft valve seat and valve body leans on the Expanded graphite pad to realize.
We know and will lean on hard sealing to guarantee that the gaseous medium zero leakage is impossible, this moment, hard seal valve seat all stayed the solid state medium in the medium, leak a part of gaseous medium seldom, this part gaseous medium that is leaked is lived by the soft seal valve base sealing at once, makes it to go into channelling effect.
Guaranteed the zero leakage of valve, it is bad to guarantee that the spool valve seat is not washed away by channelling effect, has guaranteed the working life of valve.Elastic sealing strip guarantees that medium does not leak between stack valve seat and the valve body simultaneously, between the soft or hard valve seat, forms the fouling of stack valve seat and valve body, and the fouling of soft or hard valve seat causes the stuck switch of valve phenomenon not in place.
Increased middle flange newly, suitable increasing the body cavity space, make medium that enough activity spaces be arranged in valve body, also eliminate simultaneously the stuck and switch phenomenon not in place of valve.
Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineers and technicians make the technical solution of the utility model in related domain various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (5)
1. a high-temperature wearable ball valve is made up of valve body, spool, opening-closing shaft and seal valve seat, it is characterized in that comprising:
Valve body is set to valve body (10) and following valve body (33) in the upper valve body (25), and the cavity of middle valve body is provided with ball-type spool (32), and valve body respectively is provided with a seal valve seat up and down, and opening-closing shaft passes valve body and is arranged on spool (32) both sides;
Described spool (32) is the single channel stationary structure, adopts to have anticorrosive and wear-resistant structure, and the thick Tungsten carbite of surface spraying 1-2mm;
Described seal valve seat is combined by hard sealing and soft seal, and wherein first road is hard sealing, and material therefor is a Tungsten carbite, and second road is soft seal, and material therefor is a metallic graphite carbon.
2. according to the described high-temperature wearable ball valve of claim 1, it is characterized in that described seal valve seat comprises hard seal valve pedestal (22), soft seal valve body (15), planar spring (16), butterfly spring (17), soft seal ring (14), hard valve seat cover (18), hard seal ring (19) and graphite circle (13) valve seat pressure cap (11), valve seat gland (12), the fillet of screw (20) graphite circle (21), wherein hard seal valve pedestal (22) is located between spool (32) runner mouth and the valve interior wall, soft seal valve body (15) is located at hard seal valve pedestal (22) outer ring, soft seal ring (14), graphite circle (13) is located between hard seal valve pedestal (4) and the soft seal valve body (3), valve seat pressure cap (12) is located at the end of soft seal valve body (15) and soft seal ring (14), graphite circle (26) is arranged on hard seal valve pedestal (22) and soft seal valve body (15) one ends, planar spring (16) is located between soft valve body (15) and the upper valve body (25), and butterfly spring (17) is located at soft seal valve body (15) and becomes between the upper valve body (25) with hard seal valve pedestal (22) assemblying body.
3. high-temperature wearable ball valve according to claim 1 is characterized in that described seal valve seat is symmetricly set on upper valve body (25) and following valve body (33) is inner, the two ends of spool (32) runner mouth.
4. high-temperature wearable ball valve according to claim 1, it is characterized in that described opening-closing shaft comprises rotating shaft (1) and back shaft (30), its shaft (1) pivot movable valve plug (32) rotary opening and closing valve, rotating shaft (1) and back shaft (30) opposition are arranged under the pressure medium.
5. high-temperature wearable ball valve according to claim 1 is characterized in that described all sealed members all adopt the Expanded graphite that can bear high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202922580U CN201705982U (en) | 2010-08-16 | 2010-08-16 | High-temperature wear-resistant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202922580U CN201705982U (en) | 2010-08-16 | 2010-08-16 | High-temperature wear-resistant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705982U true CN201705982U (en) | 2011-01-12 |
Family
ID=43443138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202922580U Expired - Fee Related CN201705982U (en) | 2010-08-16 | 2010-08-16 | High-temperature wear-resistant ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705982U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518828A (en) * | 2011-11-12 | 2012-06-27 | 中山铁王流体控制设备有限公司 | High temperature and high pressure floating ball hard seal lock hopper valve |
| CN105805341A (en) * | 2016-05-30 | 2016-07-27 | 乌鲁木齐市闽之宇阀业有限公司 | Dual-material multi-protection sealing mechanism of ball valve |
| CN110043683A (en) * | 2018-01-16 | 2019-07-23 | 深圳市飞托克实业有限公司 | Valve |
| CN114382918A (en) * | 2020-10-21 | 2022-04-22 | 中国科学院微电子研究所 | Three-way valve and semiconductor manufacturing equipment |
-
2010
- 2010-08-16 CN CN2010202922580U patent/CN201705982U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518828A (en) * | 2011-11-12 | 2012-06-27 | 中山铁王流体控制设备有限公司 | High temperature and high pressure floating ball hard seal lock hopper valve |
| CN105805341A (en) * | 2016-05-30 | 2016-07-27 | 乌鲁木齐市闽之宇阀业有限公司 | Dual-material multi-protection sealing mechanism of ball valve |
| CN105805341B (en) * | 2016-05-30 | 2019-04-26 | 乌鲁木齐市闽之宇阀业有限公司 | The double material multiple protective sealing mechanisms of ball valve |
| CN110043683A (en) * | 2018-01-16 | 2019-07-23 | 深圳市飞托克实业有限公司 | Valve |
| CN114382918A (en) * | 2020-10-21 | 2022-04-22 | 中国科学院微电子研究所 | Three-way valve and semiconductor manufacturing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yueyang Dongfang Automatic Control Engineering Equipment Co., Ltd. Assignor: Wu Jun Contract record no.: 2011430000212 Denomination of utility model: Small-caliber high-temperature wear-resistant ball valve Granted publication date: 20110112 License type: Exclusive License Record date: 20111008 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130816 |