CN204533623U - A kind of accentric stop cock - Google Patents
A kind of accentric stop cock Download PDFInfo
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- CN204533623U CN204533623U CN201520034061.XU CN201520034061U CN204533623U CN 204533623 U CN204533623 U CN 204533623U CN 201520034061 U CN201520034061 U CN 201520034061U CN 204533623 U CN204533623 U CN 204533623U
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- valve
- valve ball
- shaft axis
- sphere
- valve body
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Abstract
The utility model belongs to technical field of valve manufacturing.Described stopcock comprises: valve body and valve ball, and valve ball is embedded in the valve body of hollow, it is characterized by: the valve ball centre of sphere of described stopcock departs from valve body shaft axis intended distance.Departed from the intended distance of valve body shaft axis by the valve ball centre of sphere, part sealing load is transformed into unlatching moment, the stopcock of not easily opening in a high voltage state or not opening easily is opened.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, particularly a kind of manufacturing technology of Novel plug valve.
Background technique
Stopcock is a kind of instrument conventional in drilling process, by 90-degree rotation, the passway of valve ball being overlapped with the passway on valve body or separates, entering a kind of valve of well passage for switching on or off drilling fluid.
Valve ball is the critical component of this instrument, now pass the valve ball centre of sphere with the valve ball passage shaft axis of stopcock, valve channel shaft axis overlaps with valve ball passage shaft axis, when valve is in closed condition, valve channel shaft axis is vertical with valve ball passage shaft axis, by fluid-encapsulated, valve ball is pressed on valve seat, forms the friction torque stoping and open, act on the pressure on valve ball symmetrical relative to the spin axis of valve ball.Moment needed for Open valve is one of important technological parameters of stopcock.When in well, pressure is larger, friction torque makes valve not easily open, and time serious, valve can not be opened completely.
Model utility content
The purpose of this utility model is to overcome above-mentioned deficiency existing in prior art, provides a kind of and opens easy, that structure is simple, cost of production is lower stopcock.
For achieving the above object, technical solution adopted in the utility model is as follows: a kind of stopcock, valve body and valve ball, and valve ball is embedded in the valve body of hollow, and the valve ball centre of sphere of described stopcock departs from valve body shaft axis intended distance.
The valve ball centre of sphere of described stopcock departs from valve body shaft axis intended distance, is loaded in valve body by this valve ball in embedded mode.When the valve is closed, the projection of valve channel hole on valve ball is relatively an eccentric circle with the centre of sphere, and namely area of contour is divided into small one and large one two-part by valve ball keying running shaft.The FIH pressure pressure acted on valve ball projection plane opens and closes running shaft to valve ball and gets square, form small one and large one, two moments that direction is contrary, the difference allowing high-torque deduct little moment is consistent with the moment direction of opening ball valve, namely this part moment is allowed to be superimposed upon in additional unlatching moment, actual unlatching moment is increased, so, originally not easily to open or the stopcock of not opening just can easily be opened.
Further, the valve ball centre of sphere of described stopcock departs from valve body shaft axis intended distance, and this valve ball, through the valve ball centre of sphere, loads in valve body in embedded mode by valve ball passage shaft axis.When the valve is closed, the projection of valve channel hole on valve ball is relatively an eccentric circle with the centre of sphere, and namely area of contour is divided into small one and large one two-part by valve ball keying running shaft.The FIH pressure pressure acted on valve ball projection plane opens and closes running shaft to valve ball and gets square, form small one and large one, two moments that direction is contrary, the difference allowing high-torque deduct little moment is consistent with the moment direction of opening ball valve, namely this part moment is allowed to be superimposed upon in additional unlatching moment, actual unlatching moment is increased, so, originally not easily to open or the stopcock of not opening just can easily be opened.
Further, the valve ball centre of sphere of described stopcock departs from valve body shaft axis intended distance, and valve ball passage shaft axis is through the valve ball centre of sphere, and valve body shaft axis overlaps with valve channel shaft axis, is loaded in valve body by this valve ball in embedded mode.When the valve is closed, the projection of valve channel hole on valve ball is relatively an eccentric circle with the centre of sphere, and namely area of contour is divided into small one and large one two-part by valve ball keying running shaft.The FIH pressure pressure acted on valve ball projection plane opens and closes running shaft to valve ball and gets square, form small one and large one, two moments that direction is contrary, the difference allowing high-torque deduct little moment is consistent with the moment direction of opening ball valve, namely this part moment is allowed to be superimposed upon in additional unlatching moment, actual unlatching moment is increased, so, originally not easily to open or the stopcock of not opening just can easily be opened.
Further, the valve ball centre of sphere of described stopcock departs from the intended distance of valve body shaft axis is 4mm-6mm.
Further, the valve ball centre of sphere of described stopcock departs from the intended distance of valve body shaft axis is 5mm.
Further, the valve ball centre of sphere of described stopcock departs from the intended distance of valve body shaft axis is 4mm.
Further, the valve ball centre of sphere of described stopcock departs from the intended distance of valve body shaft axis is 6mm.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Described stopcock, under hyperbaric environment, can realize opening light, laborsaving, easily.
Accompanying drawing illustrates:
Fig. 1 is the tectonic maps that structure of the present utility model and valve itself combine.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the vector diagram of the utility model embodiment.
Mark in figure: the 1-valve ball centre of sphere, 2-valve ball passage, 3-valve body shaft axis, 4-valve channel, the eccentric area of 5-, the eccentric area center of gravity of 6-.
Embodiment
As shown in Figure 2 and Figure 3, a kind of stopcock, comprises valve body and valve ball, valve ball is embedded in the valve body of hollow, valve ball passage 2 shaft axis of described stopcock is through the valve ball centre of sphere 1, and valve body shaft axis 3 overlaps with valve channel 4 shaft axis, and the valve ball centre of sphere 1 departs from valve body shaft axis 3 intended distance.The valve ball centre of sphere 1 departs from valve body shaft axis 3 intended distance, and described intended distance is preferably as 5mm, and the valve ball centre of sphere 1 and eccentric area center of gravity 6 spacing are 27.833mm, and can obtain eccentric area 5 is 697.612mm
2.Valve body shaft axis 3 overlaps with valve passage 4 shaft axis, and valve ball passage 2 and valve channel 4 are combined closely.According to high-pressure well mouth pressure data, pressure is 105mpa by force, then according to formula: moment of torsion=eccentric area 5 × pressure × throw of eccentric (the valve ball centre of sphere 1 and eccentric area center of gravity 6 spacing), can draw and specifically open moment.
The valve ball centre of sphere 1 of described stopcock departs from valve body shaft axis 3 intended distance, and valve ball passage 2 shaft axis is through the valve ball centre of sphere 1, and valve body shaft axis 3 overlaps with valve channel 4 shaft axis, is loaded in valve body by this valve ball in embedded mode.When the valve is closed, the projection of valve channel 4 on valve ball is relatively an eccentric circle with the valve ball centre of sphere 1, and namely area of contour is divided into small one and large one two-part by valve ball keying running shaft.The FIH pressure pressure acted on valve ball projection plane opens and closes running shaft to valve ball and gets square, form small one and large one, two moments that direction is contrary, the difference allowing high-torque deduct little moment is consistent with the moment direction of opening ball valve, namely this part moment is allowed to be superimposed upon in additional unlatching moment, actual unlatching moment is increased, so, originally not easily to open or the stopcock of not opening just can easily be opened.
In another embodiment of this case, the distance that the valve ball centre of sphere 1 departs from valve body shaft axis 3 can be 4mm or is 6mm.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Described stopcock, under hyperbaric environment, can realize opening light, laborsaving, easily.
Above binding tests example and embodiment are described in further detail the utility model.But this should be interpreted as that the scope of the above-mentioned theme of the utility model is only limitted to above embodiment, all technology realized based on the utility model content all belong to scope of the present utility model.
Claims (6)
1. an accentric stop cock, comprise valve body and valve ball, valve ball is embedded in the valve body of hollow, it is characterized in that: the valve ball centre of sphere of described stopcock departs from valve body shaft axis intended distance, and the intended distance that the valve ball centre of sphere of described stopcock departs from valve body shaft axis is 4mm-6mm.
2. accentric stop cock as claimed in claim 1, is characterized in that: the valve ball passage shaft axis of described stopcock is through the valve ball centre of sphere.
3. accentric stop cock as claimed in claim 1, is characterized in that: the valve body shaft axis of described stopcock overlaps with valve channel shaft axis.
4. accentric stop cock as claimed in claim 2, is characterized in that: the intended distance that the valve ball centre of sphere of described stopcock departs from valve body shaft axis is 5mm.
5. accentric stop cock as claimed in claim 2, is characterized in that: the intended distance that the valve ball centre of sphere of described stopcock departs from valve body shaft axis is 4mm.
6. accentric stop cock as claimed in claim 2, is characterized in that: the intended distance that the valve ball centre of sphere of described stopcock departs from valve body shaft axis is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034061.XU CN204533623U (en) | 2015-01-19 | 2015-01-19 | A kind of accentric stop cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034061.XU CN204533623U (en) | 2015-01-19 | 2015-01-19 | A kind of accentric stop cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533623U true CN204533623U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520034061.XU Active CN204533623U (en) | 2015-01-19 | 2015-01-19 | A kind of accentric stop cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697809A (en) * | 2016-04-29 | 2016-06-22 | 张作玮 | Plug valve |
| CN108286614A (en) * | 2018-03-08 | 2018-07-17 | 河南省高山阀门有限公司 | A kind of low flow resistance long-life elastic packing eccentric stopcock |
-
2015
- 2015-01-19 CN CN201520034061.XU patent/CN204533623U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697809A (en) * | 2016-04-29 | 2016-06-22 | 张作玮 | Plug valve |
| CN108286614A (en) * | 2018-03-08 | 2018-07-17 | 河南省高山阀门有限公司 | A kind of low flow resistance long-life elastic packing eccentric stopcock |
| CN108286614B (en) * | 2018-03-08 | 2023-08-04 | 河南省高山阀门有限公司 | Low flow resistance long life elastic sealing eccentric plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An eccentric plug valve Effective date of registration: 20230720 Granted publication date: 20150805 Pledgee: Bank of China Limited Luzhou Branch Pledgor: Sichuan Huayu Petroleum Drilling and Production Equipment Co.,Ltd. Registration number: Y2023980049244 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |