CN202469051U - High temperature high pressure hard seal ball valve - Google Patents
High temperature high pressure hard seal ball valve Download PDFInfo
- Publication number
- CN202469051U CN202469051U CN2011203504276U CN201120350427U CN202469051U CN 202469051 U CN202469051 U CN 202469051U CN 2011203504276 U CN2011203504276 U CN 2011203504276U CN 201120350427 U CN201120350427 U CN 201120350427U CN 202469051 U CN202469051 U CN 202469051U
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- valve
- bellows
- valve seat
- spheroid
- seat
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Abstract
The utility model belongs to the ball valve field, to be specific, relates to a high temperature high pressure hard seal ball valve. The high temperature high pressure hard seal ball valve comprises a ball body disposed in a valve body; valve covers disposed on two sides of the valve body; a liquid inlet channel and a liquid outlet channel are respectively disposed on the two valve covers; a valve rod, which is disposed on an upper end of the ball body, and is upwardly penetrated in a heat dissipation pipe fixedly disposed on an upper side of the valve body; a driving mechanism, which can be used for driving the valve rod to perform the vertical movement, and is disposed on the upper side of the heat dissipation pipe; an elastic hard seal device disposed between the valve cover and the ball body. The elastic hard seal device provided in the utility model can be used to provide an excellent temperature difference dynamic compensation effect to the valve, therefore the good sealing performance can be guaranteed, no matter the temperature is increased or lowered. The ball valve provided in the utility model has advantages of long service lifetime, zero leakage, ability of resisting the ultrahigh temperature and the ultralow temperature, and wide applicability in environment with harsh conditions such as ultrahigh temperature or ultralow temperature conditions, inflammable, explosive and toxic conditions and so on.
Description
Technical field
The utility model belongs to the ball valve field, is specifically related to a kind of HTHP hard seal ball valve.
Background technique
Ball valve has and revolves the action that turn 90 degrees, and the faucet body of ball valve is a spheroid, manhole or passage is arranged through its axis on the spheroid.Ball valve mainly is used for cutting off, distributing and change the flow direction of medium in pipeline.Though ball valve have the double fluid to, resistance is little and open and close advantage rapidly; Yet the common non-refractory of ball valve; Shortcomings such as sealability variation take place in ball valve easily under high temperature and high pressure condition, have shortened the working life of ball valve, thereby have greatly limited the application of ball valve.
The model utility content
The purpose of the utility model provides a kind of HTHP hard seal ball valve, and this ball valve can be worked on reliable and stable ground under high temperature and high pressure environment, and good seal performance.
For realizing above-mentioned purpose; The utility model has adopted following technological scheme: a kind of HTHP hard seal ball valve; Comprise the spheroid that is arranged in the valve body, the both sides of valve body are provided with valve gap, are respectively equipped with feed pathway and liquid outlet channel on two valve gaps; The upper end of said spheroid is provided with valve rod; Said valve rod upwards is arranged in the heat dissipating pipe that is fixedly installed on the valve body upside, and the upside of heat dissipating pipe is provided with the driving mechanism that actuate valve stem moves up and down, and is provided with the elastic hard sealing device between described valve gap and the spheroid.
The utility model can also be able to further realization through following measure simultaneously:
Described elastic hard sealing device comprises the circular valve seat that is arranged in the valve gap; Constitute hard sealing pair between valve seat and the said spheroid; The outer ring surface of valve seat and the inner side surface of valve gap formation are slidingly matched; End away from spheroid of valve seat is provided with the bellows flexible with temperature variation; Bellows is welded as a whole away from an end and the said valve gap of spheroid, and the feed pathway on the medial axis of said valve seat and bellows and the valve gap and the axis of liquid outlet channel overlap mutually, and the internal diameter of valve seat and bellows equals the internal diameter of feed pathway or liquid outlet channel at least.
The external diameter of described valve seat is greater than the external diameter of bellows; Described elastic hard sealing device also comprises and is arranged on the seating spring of valve seat away from the end of spheroid; Seating spring is arranged on all sides of bellows; And seating spring is resisted against the protrusion of valve seat on the end face of bellows radial outside, and the elastic force direction of seating spring and the medial axis of bellows parallel.
Described seating spring is a plurality of along circumferentially being provided with uniformly of bellows.
Described valve gap is provided with the spring seat of groove-like towards an end of valve seat, and said seating spring is embedded in spring seat, said spring seat axially and axially the paralleling of valve seat.
The inboard of described valve seat and bellows is arranged with the spacer of tubular; One end of spacer and valve seat welding; The other end of spacer extends to form free end to bellows one side; The free end of spacer abuts in the stair-stepping inner side surface of valve gap and constitutes and is slidingly matched, and the length of spacer is less than the length sum of valve seat and bellows, and the internal diameter of spacer equals the internal diameter of feed pathway or liquid outlet channel at least.
The beneficial effect of the utility model is: the elastic hard sealing device in the utility model is that valve provides excellent temperature difference dynamic compensation effect, thereby no matter has guaranteed that ball valve can both keep excellent sealing performance when temperature raises or reduce.Simultaneously the ball valve in the utility model also has the advantage of long service life and zero leakage, and can tolerate superhigh temperature and ultralow temperature, thereby adaptable across service conditions such as superhigh temperature, ultralow temperature, inflammable, explosive and poisonous operating mode rigorous environment comparatively.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of elastic hard sealing device.
The implication of mark is following among the figure:
1-valve body 2-valve gap 6-spheroid 7-valve seat 8-spacer
9-seating spring 17-heat dissipating pipe 71-bellows
Embodiment
As shown in Figure 1, a kind of HTHP hard seal ball valve comprises the spheroid 6 that is arranged in the valve body 1; The both sides of valve body 1 are provided with valve gap 2; Be respectively equipped with feed pathway and liquid outlet channel on two valve gaps 2, the upper end of said spheroid 6 is provided with valve rod 10, and said valve rod 10 upwards is arranged in the heat dissipating pipe 17 that is fixedly installed on valve body 1 upside; The upside of heat dissipating pipe 17 is provided with the driving mechanism that actuate valve stem 10 moves up and down, and is provided with the elastic hard sealing device between described valve gap 2 and the spheroid 6.
Further; As shown in Figure 2, described elastic hard sealing device comprises the circular valve seat 7 that is arranged in the valve gap 2, constitutes hard sealing pair between valve seat 7 and the said spheroid 6; The inner side surface formation of the outer ring surface of valve seat 7 and valve gap 2 is slidingly matched; End away from spheroid 6 of valve seat 7 is provided with the bellows flexible with temperature variation 71, and bellows 71 is welded as a whole away from an end and the said valve gap 2 of spheroid 6, and the feed pathway on the medial axis of said valve seat 7 and bellows 71 and the valve gap 2 and the axis of liquid outlet channel overlap mutually; The internal diameter of valve seat 7 and bellows 71 equals the internal diameter of feed pathway or liquid outlet channel at least, to guarantee passing through smoothly of medium.
Preferred version as the utility model; The external diameter of described valve seat 7 is greater than the external diameter of bellows 71; Described elastic hard sealing device also comprises and is arranged on the seating spring 9 of valve seat 7 away from the end of spheroid 6; Seating spring 9 is arranged on all sides of bellows 71, and the protrusion that seating spring 9 is resisted against valve seat 7 is on the end face of bellows 71 radial outsides, and the elastic force direction of seating spring 9 and the medial axis of bellows 71 parallel.
Described seating spring 9 is a plurality of along circumferentially being provided with uniformly of bellows 71.
As shown in Figure 2; Described valve gap 2 is provided with the spring seat of groove-like towards an end of valve seat 7; Said seating spring 9 is embedded in spring seat, said spring seat axially and axially the paralleling of valve seat, this set can guarantee that seating spring 9 is resisted against on the end face of valve seat 7 exactly.
Further; As shown in Figure 2, the inboard of described valve seat 7 and bellows 71 is arranged with the spacer 8 of tubular, an end of spacer 8 and valve seat 7 welding; The other end of spacer 8 extends to form free end to bellows 71 1 sides; The free end of spacer 8 abuts in the stair-stepping inner side surface of valve gap 2 and constitutes and is slidingly matched, and the length of spacer 8 is less than the length sum of valve seat 7 and bellows 71, and the internal diameter of spacer 8 equals the internal diameter of feed pathway or liquid outlet channel at least.
In real work; Because an end of spacer 8 abuts in and constitutes with the inner side surface of valve gap 2 and is slidingly matched; The other end is then fixing with valve seat 7 welding; Therefore when making that when the gradient of temperature of medium bellows 71 stretches, 8 pairs of valve seats 7 of spacer play the effect of guide and limit, have guaranteed the work that valve seat 7 can safety and stability.
In sum; The inner side surface of the valve gap 2 in the utility model is provided with a plurality of stepped boss; The end face that described valve seat 7, spacer 8 and bellows 71 and valve gap 2 join is corresponding different stepped boss all, so that valve seat 7, spacer 8 and bellows 71 play consistently effect separately.The key that realizes hard sealing in the utility model is cooperatively interacting of valve seat 7, spacer 8, seating spring 9 and bellows 71; Wherein the valve seat 7 with bellows 71 is the main bodys that constitute hard sealing pair with spheroid 6; 9 effects of playing compensation of seating spring, and spacer 8 mainly plays the effect of guide and limit to valve seat 7.
Claims (6)
1. HTHP hard seal ball valve; Comprise the spheroid (6) that is arranged in the valve body (1); The both sides of valve body (1) are provided with valve gap (2); Two valve gaps are respectively equipped with feed pathway and liquid outlet channel on (2), and the upper end of said spheroid (6) is provided with valve rod (10), it is characterized in that: said valve rod (10) upwards is arranged in the heat dissipating pipe (17) that is fixedly installed on valve body (1) upside; The upside of heat dissipating pipe (17) is provided with the driving mechanism that actuate valve stem (10) moves up and down, and is provided with the elastic hard sealing device between described valve gap (2) and the spheroid (6).
2. HTHP hard seal ball valve according to claim 1; It is characterized in that: described elastic hard sealing device comprises the circular valve seat (7) that is arranged in the valve gap (2); Constitute hard sealing pair between valve seat (7) and the said spheroid (6); The inner side surface formation of the outer ring surface of valve seat (7) and valve gap (2) is slidingly matched; End away from spheroid (6) of valve seat (7) is provided with the bellows flexible with temperature variation (71); Bellows (71) is welded as a whole away from an end and the said valve gap (2) of spheroid (6), and the feed pathway on the medial axis of said valve seat (7) and bellows (71) and the valve gap (2) and the axis of liquid outlet channel overlap mutually, and the internal diameter of valve seat (7) and bellows (71) equals the internal diameter of feed pathway or liquid outlet channel at least.
3. HTHP hard seal ball valve according to claim 2; It is characterized in that: the external diameter of described valve seat (7) is greater than the external diameter of bellows (71); Described elastic hard sealing device also comprises and is arranged on the seating spring (9) of valve seat (7) away from the end of spheroid (6); Seating spring (9) is arranged on all sides of bellows (71); And seating spring (9) is resisted against the protrusion of valve seat (7) on the end face of bellows (71) radial outside, and the medial axis of the elastic force direction of seating spring (9) and bellows (71) parallels.
4. HTHP hard seal ball valve according to claim 3 is characterized in that: described seating spring (9) is a plurality of along circumferentially being provided with uniformly of bellows (71).
5. HTHP hard seal ball valve according to claim 3; It is characterized in that: described valve gap (2) is provided with the spring seat of groove-like towards an end of valve seat (7); Said seating spring (9) is embedded in spring seat, said spring seat axially and axially the paralleling of valve seat (7).
6. according to each described HTHP hard seal ball valve of claim 2～5; It is characterized in that: the inboard of described valve seat (7) and bellows (71) is arranged with the spacer (8) of tubular; One end of spacer (8) and valve seat (7) welding; The other end of spacer (8) extends to form free end to bellows (71) one sides; The free end of spacer (8) abuts in the stair-stepping inner side surface of valve gap (2) and constitutes and is slidingly matched, and the length of spacer (8) is less than the length sum of valve seat (7) and bellows (71), and the internal diameter of spacer (8) equals the internal diameter of feed pathway or liquid outlet channel at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203504276U CN202469051U (en) | 2011-08-13 | 2011-08-13 | High temperature high pressure hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203504276U CN202469051U (en) | 2011-08-13 | 2011-08-13 | High temperature high pressure hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469051U true CN202469051U (en) | 2012-10-03 |
Family
ID=46917210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203504276U Expired - Fee Related CN202469051U (en) | 2011-08-13 | 2011-08-13 | High temperature high pressure hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469051U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927308A (en) * | 2011-08-13 | 2013-02-13 | 余金贤 | High-temperature and high-pressure rigid sealing ball valve |
| CN105697808A (en) * | 2016-04-18 | 2016-06-22 | 江苏神通阀门股份有限公司 | Novel sealing ball valve with corrugated pipes |
| CN106641313A (en) * | 2015-10-29 | 2017-05-10 | 江苏中昊船用阀门制造有限公司 | High-pressure-resistant electric-hydraulic control ball valve |
| CN107725815A (en) * | 2017-09-30 | 2018-02-23 | 雷蒙德(北京)科技股份有限公司 | Fixed ball valve |
-
2011
- 2011-08-13 CN CN2011203504276U patent/CN202469051U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927308A (en) * | 2011-08-13 | 2013-02-13 | 余金贤 | High-temperature and high-pressure rigid sealing ball valve |
| CN106641313A (en) * | 2015-10-29 | 2017-05-10 | 江苏中昊船用阀门制造有限公司 | High-pressure-resistant electric-hydraulic control ball valve |
| CN105697808A (en) * | 2016-04-18 | 2016-06-22 | 江苏神通阀门股份有限公司 | Novel sealing ball valve with corrugated pipes |
| CN105697808B (en) * | 2016-04-18 | 2018-01-30 | 江苏神通阀门股份有限公司 | A kind of New corrugated pipe seal ball-valve |
| CN107725815A (en) * | 2017-09-30 | 2018-02-23 | 雷蒙德(北京)科技股份有限公司 | Fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |