CN104421452A - High-temperature hard seal ball valve - Google Patents
High-temperature hard seal ball valve Download PDFInfo
- Publication number
- CN104421452A CN104421452A CN201310396694.0A CN201310396694A CN104421452A CN 104421452 A CN104421452 A CN 104421452A CN 201310396694 A CN201310396694 A CN 201310396694A CN 104421452 A CN104421452 A CN 104421452A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve seat
- ball
- spheroid
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a high-temperature hard seal ball valve. The high-temperature hard seal ball valve comprises a valve body, a ball body, an upper valve rod, a corrugated pipe and a valve seat. The valve seat is connected with the valve body which is provided with a ball cavity, a medium inlet and a medium outlet, the medium inlet and the medium outlet are communicated with the ball cavity, the valve seat serves as the side wall of the ball cavity, the ball body is arranged in the ball cavity and contacts with the valve seat, the upper valve rod penetrates through the valve body to be connected with the ball body, two ends of the corrugated pipe are connected with the valve body and the valve seat respectively, and the corrugated pipe, the valve body and the valve seat form a closed cavity. By adoption of the structure, the high-temperature hard seal ball valve is integrally simple in structure and convenient to implement; by the aid of the corrugated pipe, when a gap communicated with the ball cavity is formed between the valve body and the valve seat, influences on use normality of the high-temperature hard seal ball valve due to leakage of fluid through the gap between the valve body and the valve seat can be avoided.
Description
Technical field
The present invention relates to a kind of ball valve, specifically hard sealing high-temp. ball valve.
Background technique
Because of ball valve have fluid resistance little, easy to operate, open and close the advantages such as rapid, be therefore widely used in industries such as petrochemical industry, long-distance transport pipes and urban heat supplyings.Ball valve can be divided into soft sealing ball valve and hard seal ball valve according to the difference of its seat material, and wherein, the valve seat of soft sealing ball valve adopts teflon or filled polytetrafluoroethylene, and it is generally applicable to the fluid that temperature is no more than 200 DEG C; The valve seat of hard seal ball valve adopts metal to make, and it is generally applicable to temperature higher than the fluid of 250 DEG C.When in existing hard seal ball valve working procedure, displacement occurs its valve seat under the touching repeatedly of spheroid, the sealability between valve seat and valve body is deteriorated, and fluid easily from the clearance leakage between valve seat and valve body, thus has influence on the normal use of ball valve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one and fluid can be avoided to leak, thus strengthen the hard sealing high-temp. ball valve of sealability.
Object of the present invention is achieved through the following technical solutions: hard sealing high-temp. ball valve, the valve seat comprising valve body, spheroid, upper valve rod, bellows and be connected with valve body, described valve body is configured with spheroid chamber and connects medium entrance and the media outlet in spheroid chamber, valve seat forms the sidewall in spheroid chamber, described spheroid to be arranged in spheroid chamber and to contact with valve seat, described upper valve rod passes valve body and is connected with spheroid, described bellows two ends are connected with valve body and valve seat respectively, and bellows, valve body and valve seat three are configured with closed cavity.
Described valve body is connected with through valve body and the lower rotary shaft be connected with spheroid.The present invention is provided with lower rotary shaft, when the present invention opens or closes, spheroid is driven to rotate by rotating upper valve rod, and drive lower rotary shaft to rotate during spheroid rotation, the present invention completes the lower location to spheroid by lower rotary shaft, and so, spheroid is when being subject to fluid impact, the side-play amount of spheroid is also less, and when avoiding spheroid to touch valve seat, active force is excessive and the sealability between valve seat and valve body is damaged.
Butterfly spring is provided with in the closed cavity that described valve body, valve seat and bellows three are formed.The present invention is by the effect of butterfly spring, and when having fluid to circulate in the present invention, butterfly spring can avoid bellows to occur larger distortion because being subject to the extruding of fluid, thus makes basic structure of the present invention firm.
Compared with prior art, the present invention has following beneficial effect: the present invention includes valve body, spheroid, valve seat and bellows, wherein, valve body, valve seat and bellows three are configured with confined space, when valve seat of the present invention causes there is gap between valve seat and valve body being subject to the impact several times of spheroid, closed cavity and spheroid chamber are connected, and bellows can stop fluid to flow out from the gap between valve seat and valve body, thus effectively avoid the present invention to occur leaking, ensure normal use of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Name in accompanying drawing corresponding to reference character is called: 1, valve body, 2, valve seat, 3, spheroid, 4, upper valve rod, 5, lower rotary shaft, 6, bellows, 7, butterfly spring.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1, hard sealing high-temp. ball valve, comprises valve body 1, valve seat 2, spheroid 3, upper valve rod 4, lower rotary shaft 5 and bellows 6, and wherein, valve seat 2 is connected with valve body 1 by the mode of welding.Valve body 1 is configured with spheroid chamber, medium entrance and media outlet, and medium entrance and media outlet lay respectively at the relative both sides of valve body 1, and medium entrance and media outlet all connect spheroid chamber.Valve seat 2 is arranged on the position that spheroid chamber contacts with media outlet with medium entrance, wherein, valve seat 2 forms the partial sidewall in spheroid chamber, spheroid 3 to be arranged in spheroid chamber and to contact with valve seat 2, spheroid 3 is provided with the passage running through spheroid both sides, upper valve rod 4 and lower rotary shaft 5 are all connected with spheroid 3 through valve body 1, and upper valve rod 4 is connected to the upper-end part of driving of spheroid 3, and lower rotary shaft 5 is connected to the lower end part of spheroid 3.Bellows 6 two ends are connected with valve body 1 and valve seat 2 respectively by the mode of welding, bellows 6, valve body 1 and valve seat 2 three are configured with closed cavity, affect the sealability of closed cavity in order to avoid distortion when bellows 6 is subject to hydrodynamic pressure, in the closed cavity that valve body 1, valve seat 2 and bellows 6 three are formed, be provided with butterfly spring 7.
Hard sealing high-temp. ball valve drives spheroid 3 to rotate when specific works by rotating upper valve rod 4, and then whether the passage controlling spheroid 3 connects medium entrance and the media outlet of valve body 1.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other mode of executions drawn under technological scheme of the present invention, all should be included in protection scope of the present invention.
Claims (3)
1. hard sealing high-temp. ball valve, it is characterized in that: comprise valve body (1), spheroid (3), upper valve rod (4), bellows (6) and the valve seat (2) be connected with valve body (1), described valve body (1) is configured with spheroid chamber and connects medium entrance and the media outlet in spheroid chamber, valve seat (2) forms the sidewall in spheroid chamber, described spheroid (3) to be arranged in spheroid chamber and to contact with valve seat (2), described upper valve rod (4) is through valve body (1) and be connected with spheroid (3), described bellows (6) two ends are connected with valve body (1) and valve seat (2) respectively, and bellows (6), valve body (1) and valve seat (2) three are configured with closed cavity.
2. hard sealing high-temp. ball valve according to claim 1, is characterized in that: described valve body (1) is connected with through valve body (1) and the lower rotary shaft (5) be connected with spheroid (3).
3. hard sealing high-temp. ball valve according to claim 1 and 2, is characterized in that: be provided with butterfly spring (7) in the closed cavity that described valve body (1), valve seat (2) and bellows (6) three are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396694.0A CN104421452A (en) | 2013-09-04 | 2013-09-04 | High-temperature hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396694.0A CN104421452A (en) | 2013-09-04 | 2013-09-04 | High-temperature hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104421452A true CN104421452A (en) | 2015-03-18 |
Family
ID=52971247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310396694.0A Pending CN104421452A (en) | 2013-09-04 | 2013-09-04 | High-temperature hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104421452A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725815A (en) * | 2017-09-30 | 2018-02-23 | 雷蒙德(北京)科技股份有限公司 | Fixed ball valve |
| CN112074675A (en) * | 2018-05-03 | 2020-12-11 | 奈勒斯芬兰有限公司 | Valve sealing device and valve seat |
-
2013
- 2013-09-04 CN CN201310396694.0A patent/CN104421452A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725815A (en) * | 2017-09-30 | 2018-02-23 | 雷蒙德(北京)科技股份有限公司 | Fixed ball valve |
| CN112074675A (en) * | 2018-05-03 | 2020-12-11 | 奈勒斯芬兰有限公司 | Valve sealing device and valve seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103591307A (en) | Triple eccentric metal hard sealing butterfly valve | |
| CN104421452A (en) | High-temperature hard seal ball valve | |
| CN206682338U (en) | A kind of tilted back type formula ceramics double-gate plate valve | |
| CN202327149U (en) | Self-sealing stop valve | |
| CN203560467U (en) | Triple-eccentric metal hard-sealing butterfly valve | |
| CN203131068U (en) | High-sealing wedge gate valve | |
| CN204176020U (en) | Low temperature fills formula beveled ball valve | |
| CN205350415U (en) | High temperature eccentric half -ball valve | |
| CN204061977U (en) | High-performance steel lined with fluoroplastic pellet valve | |
| CN106015660A (en) | Quick closing check valve | |
| CN206816862U (en) | To pressing from both sides Fluorine-lined ball valve | |
| CN204828681U (en) | Cooling right -angle type stop valve of industry | |
| CN203214897U (en) | High-pressure self-sealing check valve with low flow resistance | |
| CN202708128U (en) | Stop valve | |
| CN203404393U (en) | Eccentric butterfly valve | |
| CN106907517A (en) | One kind vacuumizes sealing valve | |
| CN202441902U (en) | Novel pneumatic butterfly valve | |
| CN206017952U (en) | Only liquid electromagnetic valve | |
| CN204175970U (en) | Stop valve | |
| CN103759035A (en) | All-welded fixed ball valve | |
| CN203413222U (en) | Sealing device for valve shaft of butterfly valve | |
| CN202100724U (en) | Valve of fully-welded bellows | |
| CN219549636U (en) | Novel double-layer soft sealing butterfly valve | |
| CN204755984U (en) | Ball valve floats | |
| CN204140992U (en) | A kind of two lining ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
|
| WD01 | Invention patent application deemed withdrawn after publication |