CN202327200U - Bidirectional metal sealing floating ball valve - Google Patents
Bidirectional metal sealing floating ball valve Download PDFInfo
- Publication number
- CN202327200U CN202327200U CN2011204954646U CN201120495464U CN202327200U CN 202327200 U CN202327200 U CN 202327200U CN 2011204954646 U CN2011204954646 U CN 2011204954646U CN 201120495464 U CN201120495464 U CN 201120495464U CN 202327200 U CN202327200 U CN 202327200U
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- China
- Prior art keywords
- valve
- spheroid
- sealing
- medium
- ball
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- Expired - Lifetime
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Abstract
The utility model discloses a bidirectional metal sealing floating ball valve. The ball valve comprises a left body, a valve body, a ball body and a valve rod, wherein the left body is connected with the valve body and forms a ball body cavity with the valve body; a medium inlet communicated with the ball body cavity is formed in the left body; a medium outlet communicated with the ball body cavity is formed in the valve body; the ball body is arranged in the ball body cavity; one end of the valve rod penetrates through the valve body and is connected with the ball body; the left body is connected with an inlet end valve base; a sealing adjusting component is in static sealing connection between the inlet end valve base and the left body; the valve body is connected with an outlet end valve base; a sealing gasket is in static sealing connection between the outlet end valve base and the valve body; and under the action of medium pressure, the ball valve forms a dynamic sealing component for sealing the medium inlet and the medium outlet. As the structure is adopted, when pressure of the medium inlet end is too high, the ball body seals the medium outlet, and when pressure of the medium outlet end too high, the ball body seals the medium inlet, so bidirectional sealing is realized, and a medium is prevented from flowing.
Description
Technical field
The utility model relates to a kind of ball valve, specifically is the bidirectional metal sealing floating ball valve.
Background technique
Traditional metallic seal floating ball valve is the one-way sealing structure, and it must be by MEDIA FLOW to installation.All there is back pressure in most of operating mode; Under the situation that back pressure raises because of unusual fluctuations; When the metallic seal floating ball valve of one-way sealing produced medium and flows backwards because of outlet end pressure is excessive, the medium of refluence was prone to cause accidents such as safety, medium pollution, particularly for the one-way sealing metallic seal floating ball valve of drain position; Be vented to atmosphere if malicious medium produces to flow backwards, will cause the serious consequence of life risk and environmental pollution.
The model utility content
The purpose of the utility model is to overcome the deficiency of existing technology, and a kind of bidirectional metal sealing floating ball valve that can stop the medium circulation when excessive or outlet end pressure is excessive at entrance point pressure is provided.
The purpose of the utility model mainly realizes through following technological scheme: the bidirectional metal sealing floating ball valve; Comprise left body, valve body, spheroid and valve rod; Said left body is connected with valve body and constitutes the spheroid chamber with valve body, and left body is provided with the medium import of connecting the spheroid chamber, and valve body is provided with the media outlet of connecting the spheroid chamber; Said spheroid is arranged in the spheroid chamber, and said valve rod one end passes valve body and is connected with spheroid; Be provided with the entrance point valve seat that is connected with left body between said medium import and the spheroid chamber; Static seal is connected with the sealing adjusting element between entrance point valve seat and the left body; Be provided with the outlet end valve seat that is connected with valve body between said media outlet and the spheroid chamber; Static seal is connected with gasket seal between outlet end valve seat and the valve body, and said spheroid constitutes the motive sealing member of sealing medium import or media outlet under the effect of pressure medium.Be close to the entrance point valve seat during import of ball seal medium, be close to the outlet end valve seat during import of ball seal medium.
Said sealing adjusting element is connected with elastic element.Elastic element provides sealing force to make the expansion of sealing adjusting element be close to entrance point valve seat and left body, thereby guarantees to realize between entrance point valve seat and the left body reliable static seal.
The material of said sealing adjusting element and gasket seal is Expanded graphite or reinforced TFE.The material of sealing adjusting element and gasket seal can supportingly be chosen unlike material according to the requirement of the amount of plastic deformation of applying working condition, temperature and material itself; The utility model preferably adopts Expanded graphite or reinforced TFE; Both can satisfy the usage requirement of low temperature, high temperature, and have Applicable scope widely.
Said spheroid, entrance point valve seat and outlet end valve seat three process by metallic material, and the three surface all is coated with hard alloy layer.Cemented carbide has high tenacity and high wear resistance, and so, the spheroid of the utility model, entrance point valve seat and outlet end valve seat can be applicable to abominable work condition environment.
Compared with prior art, the utlity model has following beneficial effect: be provided with the entrance point valve seat that is connected with left body between the medium import of the utility model and the spheroid chamber, be provided with the outlet end valve seat that is connected with valve body between media outlet and the spheroid chamber; Static seal is connected with the sealing adjusting element between entrance point valve seat and the left body; Static seal is connected with gasket seal between outlet end valve seat and the valve body, and when the pressure medium of medium entrance point was excessive, spheroid can contact with the outlet end valve seat and the sealing medium outlet; And when the pressure medium of media outlet end is excessive; Spheroid can contact and the sealing medium import with the entrance point valve seat, and so, the utility model can be realized two way sealed; Thereby stop the medium circulation; Valve can be by any direction setting when mounted valve, and the application is wider, and accidents such as the utility model safety that can avoid medium to flow backwards being caused, medium pollution.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structure for amplifying schematic representation at A place among Fig. 1;
Fig. 3 is the structure for amplifying schematic representation at B place among Fig. 1.
The pairing name of reference character is called in the accompanying drawing: 1, left body, 2, valve body, 3, spheroid, 4, the entrance point valve seat, 5, the outlet end valve seat, 6, valve rod, 7, the sealing adjusting element, 8, gasket seal.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done further to specify, but the mode of execution of the utility model is not limited thereto.
Embodiment:
Like Fig. 1, Fig. 2 and shown in Figure 3, the bidirectional metal sealing floating ball valve comprises left body 1, valve body 2, spheroid 3 and valve rod 6; Wherein, left body 1 is connected with valve body 2 and constitutes the spheroid chamber with valve body 2, and left body 1 is provided with the medium import; Valve body 2 is provided with media outlet; Medium import and media outlet are all connected the spheroid chamber, and spheroid 3 is arranged in the spheroid chamber, constitute the runner of connecting medium import and media outlet in the spheroid 3; Valve rod 6 one ends pass valve body 2 and are connected with spheroid 3, and 3 rotations of valve rod 6 driving spheroids are controlled the runner of spheroid 3 and whether connected medium import and media outlet.Be provided with the entrance point valve seat 4 that is connected with left body 1 between medium import and the spheroid chamber; Static seal is connected with sealing adjusting element 7 between entrance point valve seat 4 and the left body 1; In order to strengthen the static seal structure between valve seat 4 and the left body 1; Sealing adjusting element 7 is connected with elastic element, and elastic element provides sealing force to make 7 expansions of sealing adjusting element be close to entrance point valve seat 4 and left body 1, thereby realizes reliable static seal.Be provided with the outlet end valve seat 5 that is connected with valve body 2 between media outlet and the spheroid chamber, static seal is connected with gasket seal 8 between outlet end valve seat 5 and the valve body 2.Spheroid 3, entrance point valve seat 4 and outlet end valve seat 5 threes process by metallic material, and the three surface all is coated with hard alloy layer, so, can adapt to abominable work condition environment.In order to enlarge the accommodation of sealing adjusting element 7 and 8 pairs of temperature of gasket seal, both materials of sealing adjusting element 7 and gasket seal 8 are Expanded graphite or reinforced TFE.
During the work of bidirectional metal sealing floating ball valve; Spheroid 3 constitutes the motive sealing member of sealing medium import or media outlet under the effect of pressure medium; When the pressure medium of medium entrance point is excessive; Spheroid 3 can contact with outlet end valve seat 5 and the sealing medium outlet, and when the pressure medium of media outlet end was excessive, spheroid 3 can contact and the sealing medium import with entrance point valve seat 4.
As stated, then can well realize the utility model.
Claims (4)
1. bidirectional metal sealing floating ball valve; It is characterized in that: comprise left body (1), valve body (2), spheroid (3) and valve rod (6); Said left body (1) is connected with valve body (2) and constitutes the spheroid chamber with valve body (2), and left body (1) is provided with the medium import of connecting the spheroid chamber, and valve body (2) is provided with the media outlet of connecting the spheroid chamber; Said spheroid (3) is arranged in the spheroid chamber, and said valve rod (6) one ends pass valve body (2) and are connected with spheroid (3); Be provided with the entrance point valve seat (4) that is connected with left body (1) between said medium import and the spheroid chamber; Static seal is connected with sealing adjusting element (7) between entrance point valve seat (4) and the left body (1); Be provided with the outlet end valve seat (5) that is connected with valve body (2) between said media outlet and the spheroid chamber; Static seal is connected with gasket seal (8) between outlet end valve seat (5) and the valve body (2), and said spheroid (3) constitutes the motive sealing member of sealing medium import or media outlet under the effect of pressure medium.
2. bidirectional metal sealing floating ball valve according to claim 1 is characterized in that: said sealing adjusting element (7) is connected with elastic element.
3. bidirectional metal sealing floating ball valve according to claim 1 is characterized in that: said sealing adjusting element (7) and both materials of gasket seal (8) are Expanded graphite or reinforced TFE.
4. according to described any bidirectional metal sealing floating ball valve of claim 1～3; It is characterized in that: said spheroid (3), entrance point valve seat (4) and outlet end valve seat (5) three process by metallic material, and the three surface all is coated with hard alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204954646U CN202327200U (en) | 2011-12-02 | 2011-12-02 | Bidirectional metal sealing floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204954646U CN202327200U (en) | 2011-12-02 | 2011-12-02 | Bidirectional metal sealing floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327200U true CN202327200U (en) | 2012-07-11 |
Family
ID=46439179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204954646U Expired - Lifetime CN202327200U (en) | 2011-12-02 | 2011-12-02 | Bidirectional metal sealing floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327200U (en) |
-
2011
- 2011-12-02 CN CN2011204954646U patent/CN202327200U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |