CN201462040U - Hard sealed ball valve of two valve seats and two eccentric balls - Google Patents
Hard sealed ball valve of two valve seats and two eccentric balls Download PDFInfo
- Publication number
- CN201462040U CN201462040U CN200920073344XU CN200920073344U CN201462040U CN 201462040 U CN201462040 U CN 201462040U CN 200920073344X U CN200920073344X U CN 200920073344XU CN 200920073344 U CN200920073344 U CN 200920073344U CN 201462040 U CN201462040 U CN 201462040U
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- eccentric
- valve
- valve body
- seat
- hard
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Abstract
The utility model discloses a hard sealed ball valve of two valve seats and two eccentric balls. The ball valve comprises a valve body, an auxiliary valve body, two eccentric balls and two valve seats. The eccentric balls are arranged in a space formed by the valve body and the auxiliary valve body. The valve seats are fixed on the valve body and the auxiliary valve body. The two eccentric balls have cam effect, and are attached to the hard seal surfaces of the valve seats. The utility model achieves the purposes of simple structure and labor saving under the condition of effectively improving the service life.
Description
Technical field
The utility model relates to hard seal ball valve, the two eccentric hard seal ball valves of particularly a kind of bivalve seat.
Background technique
Hard seal ball valve mainly is to be used for blocking and the ducted medium of conducting, because its circulation area is consistent with the endoporus of pipeline behind the hard seal ball opening of valves, therefore resistance is very little, the essentially no pressure loss is so be widely used in the many fields of oil, chemical industry, medicine, metallurgy, mine, food, urban construction or the like.If hard seal ball valve cooperates with the adjustment type final controlling element, can also carry out the adjusting of flow, pressure to ducted medium.
At present, the structural type of hard seal ball valve is mainly metallic elastic seat sealing configuration, two eccentric structure and combination ball bracing type sealing configuration, and wherein metallic elastic seat sealing configuration is modal structure, and its sealability depends on the elastic element performance, sealing surface wear is serious, plays the closed operation difficulty; And the hard seal ball valve of two eccentric structures such as semispherical valve, V-arrangement ball valve, these are single seat (one-way sealing), fixing spherical structure, generally do not have omnidistance pod apertures; The complex structure of combination ball bracing type sealing configuration, component are many, and high pressure, heavy caliber be difficult to use, and special small-borely can't make again.
The model utility content
The technical problems to be solved in the utility model is in order to overcome the defective of prior art, provides a kind of bivalve seat two eccentric hard seal ball valves, and it effectively improves working life, simple in structure and rapid operation.
The utility model solves above-mentioned technical problem by following technical proposals: the two eccentric hard seal ball valves of a kind of bivalve seat, it is characterized in that, it comprises valve body, the two eccentric spheroids of auxiliary valve body and valve seat, two eccentric sphere bodies are positioned at a space of valve body and auxiliary valve body formation, valve seat is fixed on valve body and the auxiliary valve body, the hard sealing surface that two eccentric sphere bodies form cam effects and valve seat paste with.
Preferably, the two eccentric hard seal ball valves of described bivalve seat comprise floating ball and fixing two kinds of structural types of ball.
Preferably, described two eccentric spheroid is that two hard sealing surfaces and gyration center are two eccentric spheroids.
Positive progressive effect of the present utility model is: the utility model makes the using scope of ball valve widen greatly, can use under the working condition that contains granular substance in High Temperature High Pressure or medium.And, because the utility model has adopted the structural type of metal hard-sealing, make that ball valve can be used in that the medium situation is comparatively abominable, under the working condition of High Temperature High Pressure, enlarged the use field and the Applicable scope of ball valve, improved working life.
Description of drawings
Fig. 1 is the utility model one embodiment's a structural representation.
Fig. 2 is the structural representation of two eccentric spheroids in the utility model.
Fig. 3 is the front schematic view of Fig. 2.
Embodiment
Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
As shown in Figure 1, the two eccentric hard seal ball valves of bivalve seat of the present utility model comprise valve body 1, auxiliary valve body 2, two eccentric spheroid 3, valve rod 4, valve seat 5, sealing gasket 6 etc.; Two eccentric spheroids 3 and valve seat 5 adopt metal material, two eccentric spheroids 3 are positioned at a space of valve body 1 and auxiliary valve body 2 formation, valve seat 5 is fixed on valve body 1 and the auxiliary valve body 2, and the hard sealing surface that two eccentric spheroids 3 form cam effect and valve seat 5 pastes and form reliable sealing.
The two eccentric hard seal ball valves of bivalve seat comprise floating ball and fixing two kinds of structural types of ball, and its seal action principle is identical with pair eccentric structures.Half-twist when closing, under cam effect, spheroid gradually near valve seat and final paste and, realize sealing.During unlatching, rotate along with valve rod drives spheroid, spheroid hightails valve seat, reduces friction, and when spheroid rotated 90 ° of arrival fully open positions, oval-shaped spheroid surface channel provided support valve seat, prevents that the valve seat string is moving, and realizes water conservancy diversion.
Two eccentric sphere body structures as shown in Figures 2 and 3, two eccentric spheroids are that two special hard sealing surfaces 31 are two eccentric spheroids with gyration center 32, two sealing surfaces 31 have axial eccentric b with respect to gyration center 32, also has radial disbalance a, so that sealing surface 31 forms cam effect in opening and closing rotary course.
The structural type that the utility model adopts is that metallic sealing section is faced in metallic seal, wherein utilize the supersonic speed spray welding technology at the spherome surface material of surfacing high hardness equably, as seal face materials such as Tungsten carbite, department too upright No. 20 or nickel 60, thickness 0.25～0.45mm, hardness number HRC 〉=58 (take charge of too upright No. 20, the hardness of Tungsten carbite is higher); Same, sealing materials such as valve base sealing surface build-up welding Si Taili cemented carbide or surfacing Tungsten carbite, hardness number HRC 〉=55 (taking charge of too upright No. 01) can not be used in the operating mode that medium contains grit thereby solved ball valve.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (3)
1. two eccentric hard seal ball valves of a bivalve seat, it is characterized in that, it comprises valve body, auxiliary valve body, two eccentric spheroid and valve seat, two eccentric sphere bodies are positioned at a space of valve body and auxiliary valve body formation, valve seat is fixed on valve body and the auxiliary valve body, the hard sealing surface that two eccentric sphere bodies form cam effects and valve seat paste with.
2. the two eccentric hard seal ball valves of bivalve seat as claimed in claim 1 is characterized in that, the two eccentric hard seal ball valves of described bivalve seat comprise floating ball and fixing two kinds of structural types of ball.
3. the two eccentric hard seal ball valves of bivalve seat as claimed in claim 1 is characterized in that, described two eccentric spheroids are that two hard sealing surfaces and gyration center are two eccentric spheroids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920073344XU CN201462040U (en) | 2009-06-03 | 2009-06-03 | Hard sealed ball valve of two valve seats and two eccentric balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920073344XU CN201462040U (en) | 2009-06-03 | 2009-06-03 | Hard sealed ball valve of two valve seats and two eccentric balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462040U true CN201462040U (en) | 2010-05-12 |
Family
ID=42389393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920073344XU Expired - Fee Related CN201462040U (en) | 2009-06-03 | 2009-06-03 | Hard sealed ball valve of two valve seats and two eccentric balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462040U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913077A (en) * | 2015-06-03 | 2015-09-16 | 航天长征化学工程股份有限公司 | Wear-resistant ball valve |
| CN105972242A (en) * | 2016-07-14 | 2016-09-28 | 潘明尧 | High sulfur-resisting hard sealing eccentric ball valve |
| CN107143665A (en) * | 2017-05-31 | 2017-09-08 | 九江中船消防设备有限公司 | A kind of integrated fast valve of single valve seat collection core structure in pairs |
| CN110206899A (en) * | 2019-06-11 | 2019-09-06 | 佟磊 | A kind of flow control pressure control device |
-
2009
- 2009-06-03 CN CN200920073344XU patent/CN201462040U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913077A (en) * | 2015-06-03 | 2015-09-16 | 航天长征化学工程股份有限公司 | Wear-resistant ball valve |
| CN105972242A (en) * | 2016-07-14 | 2016-09-28 | 潘明尧 | High sulfur-resisting hard sealing eccentric ball valve |
| CN107143665A (en) * | 2017-05-31 | 2017-09-08 | 九江中船消防设备有限公司 | A kind of integrated fast valve of single valve seat collection core structure in pairs |
| CN110206899A (en) * | 2019-06-11 | 2019-09-06 | 佟磊 | A kind of flow control pressure control device |
| CN110206899B (en) * | 2019-06-11 | 2020-11-20 | 佟磊 | Flow and pressure control device |
| WO2020248814A1 (en) * | 2019-06-11 | 2020-12-17 | 佟磊 | Flow and pressure control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110603 |