CN211231674U - Four-eccentric elliptic cone right circular sealing ball valve - Google Patents
Four-eccentric elliptic cone right circular sealing ball valve Download PDFInfo
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- CN211231674U CN211231674U CN201922317052.2U CN201922317052U CN211231674U CN 211231674 U CN211231674 U CN 211231674U CN 201922317052 U CN201922317052 U CN 201922317052U CN 211231674 U CN211231674 U CN 211231674U
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Abstract
The utility model relates to a four eccentric elliptic cone positive circle sealing ball valve. The valve comprises a ball body and a valve body, wherein a left valve body flange and a right valve body flange are respectively arranged at two ends of the valve body, a movable valve seat is arranged on the inner side of the right end of the left valve body flange, a valve seat sealing surface is arranged in the movable valve seat, an annular step is arranged on the ball body, a movable sealing ring is sleeved on the annular step, a sealing ring sealing surface of a sealing pair matched with the valve seat sealing surface to form the valve is arranged on the circumference of the movable sealing ring, the sealing pair is a perfect circle sealing pair, the valve seat sealing surface forms a part of an elliptic cone relative to the central line of a valve runner, the central line of the valve runner is positioned below the radial central line of the perfect circle sealing auxiliary shaft, the peak is. The utility model discloses simple structure does not have the friction between sealed vice, and sealed effect is good again moreover, and the spheroid installation is convenient in with the valve body, easy maintenance, long service life.
Description
Technical Field
The utility model relates to a ball valve especially relates to a four eccentric elliptic cone positive circle sealing ball valves, belongs to valve technical field.
Background
The sealing ball valve is used as a part for realizing the on-off and flow control of a pipeline system, and is widely applied in many fields such as petroleum, chemical industry, metallurgy, water and electricity, at present, in the known ball valve technology, the sealing form mostly adopts sealing structure sealing materials such as rubber, polytetrafluoroethylene, multi-layer composite materials and the like, and due to the limitation of structural characteristics, the sealing ball valve is not suitable for the severe working conditions such as high temperature resistance, high pressure resistance, corrosion resistance, wear resistance and the like, and the industrial high-temperature high-pressure hard sealing valve mainly takes a gate valve and a stop valve as main parts, and the main defects of the valve are as follows: the valve is the structure of opening from top to bottom, and valve weight is big itself, and is with high costs, and on-the-spot installation space is big to current sealed ball valve is at the in-process that uses, and sealed effect is not good, can not use under various operating modes, can receive certain restriction at the in-process of its installation, does not possess more practicality and better functional effect.
SUMMERY OF THE UTILITY MODEL
To the above defect, an object of the utility model is to provide a simple structure, there is not friction between the sealed face, sealed effectual, long service life's a four eccentric elliptic cone positive circle sealed ball valve.
Therefore, the utility model adopts the technical proposal that:
the valve comprises a ball body and a valve body, wherein the ball body is positioned in the valve body, a left valve body flange and a right valve body flange are respectively arranged at two ends of the valve body, a movable valve seat is arranged at the inner side of the right end of the left valve body flange, a valve flow channel of a valve flow channel central line which horizontally extends is arranged in the valve body, a valve seat sealing surface is arranged in the movable valve seat, an annular step is arranged on the ball body, a movable sealing ring is sleeved on the annular step, a pressing ring fixedly connected with the ball body is arranged at the outer side of the movable sealing ring, a sealing ring sealing surface of a sealing pair for sealing the valve is arranged on the circumference of the movable sealing ring, the sealing ring is matched with the valve seat sealing surface to form the sealing pair, the sealing pair is a perfect circle sealing pair, the valve seat sealing surface forms one part of an elliptic cone relative to the valve flow channel, the valve runner center line is located below the axial center line of the right circular sealing auxiliary shaft, the vertex is located between the valve runner center line and the axial center line of the right circular sealing auxiliary shaft, and the valve rod is located on the inner side of the right circular sealing auxiliary shaft.
As a further improvement of the technical scheme, the left valve body flange and the right valve body flange are fixedly connected with the valve body through the stud bolts, the nuts and the elastic washers.
As a further improvement of the technical scheme, the movable valve seat is fixedly connected with the left flange of the valve body through a connecting screw.
As a further improvement of the technical scheme, the pressing ring is fixedly connected with the ball body through a connecting screw.
As a further improvement of the technical scheme, a sealing ring gasket is arranged between the movable sealing ring and the ball body.
The utility model has the advantages that:
the utility model discloses simple structure, through adopting the utility model discloses the structure for there is not friction between the sealed face of disk seat and the sealed face of sealing ring, sealed effect is good again moreover, for traditional valve body, with spheroid installation and valve body in convenient, easy maintenance, long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the eccentric structure of the present invention.
Fig. 3 is a partially enlarged view of a in fig. 1.
In the figure, 1 is a ball, 2 is a valve body, 3 is a left flange of the valve body, 4 is a right flange of the valve body, 5 is a movable valve seat, 6 is a central line of a valve flow channel, 7 is a movable sealing ring, 8 is a pressing ring, 9 is a valve rod, 10 is an axial central line of a perfect circular sealing pair, 11 is a stud bolt, 12 is a nut, 13 is an elastic gasket, 14 is a connecting screw, and 15 is a sealing ring gasket.
Detailed Description
A four-eccentric elliptic cone perfect circle sealing ball valve comprises a ball body 1 and a valve body 2, wherein the ball body 1 is positioned inside the valve body 2, a left valve body flange 3 and a right valve body flange 4 are respectively arranged at two ends of the valve body 2, a movable valve seat 5 is arranged at the inner side of the right end of the left valve body flange 3, a valve runner of a valve runner central line 6 which horizontally extends is arranged inside the valve body 2, the left valve body flange 3 and the right valve body flange 4, a valve seat sealing surface is arranged in the movable valve seat 5, an annular step is arranged on the ball body 1, a movable sealing ring 7 is sleeved on the annular step, a pressing ring 8 which is fixedly connected with the ball body 1 is arranged at the outer side of the movable sealing ring 7, a sealing ring sealing surface which is matched with the valve seat sealing surface to form a sealing pair for sealing the valve is arranged on the circumference of the movable sealing ring, the vertex in the elliptic cone and the triangular section where the major axis of the elliptic bottom surface of the vertex is located are coplanar with the central line 6 of the valve flow channel and vertical to the axis of the valve rod 9 on the sphere 1, the central line 6 of the valve flow channel is positioned below the axial central line 10 of the right circular sealing auxiliary shaft, the vertex is positioned between the central line 6 of the valve flow channel and the axial central line 10 of the right circular sealing auxiliary shaft, and the valve rod 9 is positioned on the inner side of the right circular sealing auxiliary shaft.
As a further improvement of the technical scheme, the valve body left flange 3 and the valve body right flange 4 are fixedly connected with the valve body through the stud bolts 11, the nuts 12 and the elastic washers 13.
As a further improvement of the technical scheme, the movable valve seat 5 is fixedly connected with the left flange 3 of the valve body through a connecting screw 14.
As a further improvement of the above technical solution, the pressing ring 8 is fixedly connected with the ball 1 through a connecting screw 14.
As a further improvement of the above technical solution, a sealing ring gasket 15 is arranged between the movable sealing ring 7 and the ball 1.
As the further improvement of the technical scheme, the movable sealing ring and the movable valve seat are made of integral stainless steel, so that the movable sealing ring has the advantage of metal hard sealing, and has excellent sealing performance no matter under the conditions of low temperature and high temperature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The four-eccentric elliptic cone perfect circle sealing ball valve is characterized by comprising a ball body and a valve body, wherein the ball body is positioned inside the valve body, a left valve body flange and a right valve body flange are respectively arranged at two ends of the valve body, a movable valve seat is arranged on the inner side of the right end of the left valve body flange, a valve runner of a valve runner central line extending horizontally is arranged inside the valve body, the left valve body flange and the right valve body flange, a valve seat sealing surface is arranged in the movable valve seat, an annular step is arranged on the ball body, a movable sealing ring is sleeved on the annular step, a pressing ring fixedly connected with the ball body is arranged on the outer side of the movable sealing ring, a sealing ring sealing surface of a sealing pair matched with the valve seat sealing surface to form sealing of the valve is arranged on the circumference of the movable sealing ring, the sealing pair is a perfect circle sealing pair, the valve seat sealing surface forms a part of an elliptic cone And the valve rod is arranged at the inner side of the perfect circle sealing pair.
2. The four-eccentric elliptic cone right circular sealing ball valve according to claim 1, wherein the left valve body flange and the right valve body flange are fixedly connected with the valve body through stud bolts, nuts and elastic washers.
3. The four-eccentric elliptic cone positive circular sealing ball valve according to claim 1, wherein the movable valve seat is fixedly connected with the left flange of the valve body through a connecting screw.
4. The four-eccentric elliptic cone positive circular sealing ball valve according to claim 1, wherein the pressing ring is fixedly connected with the ball body through a connecting screw.
5. A four eccentric elliptical cone right circular sealing ball valve as claimed in claim 1 wherein a sealing ring gasket is provided between the movable sealing ring and the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922317052.2U CN211231674U (en) | 2019-12-21 | 2019-12-21 | Four-eccentric elliptic cone right circular sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922317052.2U CN211231674U (en) | 2019-12-21 | 2019-12-21 | Four-eccentric elliptic cone right circular sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231674U true CN211231674U (en) | 2020-08-11 |
Family
ID=71923505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922317052.2U Expired - Fee Related CN211231674U (en) | 2019-12-21 | 2019-12-21 | Four-eccentric elliptic cone right circular sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231674U (en) |
-
2019
- 2019-12-21 CN CN201922317052.2U patent/CN211231674U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20201221 |