CN2549282Y - Elastic ball metal sealed ball valve - Google Patents
Elastic ball metal sealed ball valve Download PDFInfo
- Publication number
- CN2549282Y CN2549282Y CN 02237112 CN02237112U CN2549282Y CN 2549282 Y CN2549282 Y CN 2549282Y CN 02237112 CN02237112 CN 02237112 CN 02237112 U CN02237112 U CN 02237112U CN 2549282 Y CN2549282 Y CN 2549282Y
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- CN
- China
- Prior art keywords
- elastic
- ball
- valve
- guide rod
- ball valve
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- Expired - Fee Related
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Abstract
The utility model relates to an elastic ball metal sealed ball valve. The shell of the ball valve consists of a left valve body and a right valve body, and a guide rod is inserted into an elastic ball, with the lower part of the guide rod being a wedge-shaped incline, the middle having a direction guide groove, and the upper part connected with a drive device. The outside of the guide rod is provided with a guide rod bracket. The lower part of which is connected with the valve body, the upper part of which is connected with the drive device, the inside of which is provided with a shaft sleeve and padding materials, and the outside of which is provided with a direction guide pin assembly, an oil injection assembly and a grease injection assembly, wherein, a direction guide pin shaft is matched with the direction guide groove. The inside of the shell of the ball valve is provided with a floating inside component assembly which includes an elastic ball body, a floating valve base, an elastic sealing cushion and an adjusting cushion, with the elastic ball body provided with a line groove in the direction of a ball hole. The utility model achieves the standard in the leakage rate, and the components achieve the non-deformation, non-pollution, good abrasion resistance and agglutination prevention. The utility model is flexible and light in operation and superior in friction resistance. The sealing surface of the elastic ball body has no trace of abrasion after the loading and transference, with the operational torsion small and an upside sealing function. The utility model is applicable for the stopping or connection of the media flow.
Description
The utility model relates to a kind of ball valve, particularly a kind of elastic ball metal seal ball valve.
Japanese metal seal ball valve is introduced in Kingsoft, Shanghai petrochemical plant and Ningguo cement plant, its sealing force relies on dish-shaped reed or helical spring, because the limit of impacting force still fails to reach the requirement of dwindling seal clearance, so the leakage rate of its ball valve is far longer than the requirement of GB/T13927 and ISO5208 regulation.Interim " analysis of ball valve sealing structure and the research " in 2000 the 6th of " valve " bimonthly, the metal seal ball valve to bracing type steel Combined ball valve, three kinds of forms of spheroid wallowing motion all has comparatively detailed argumentation.Have plenty of complex process, be difficult to realize producing in batches, cost an arm and a leg; Have plenty of because seal pressure is unbalanced, be subjected to pressure medium erosion imbalance, reduce working life; What have can only form one-way sealing, and MEDIA FLOW is to being restricted, and installation direction also is restricted; The complex structure that has, the ball valve volume is big, and manufacture difficulty is also big.
The purpose of this utility model just provides a kind of sealing and the good elastic ball metal seal ball valve of crocking resistance.
According to sealing principle, the gap of sealing pair must be less than the diameter of circulation medium molecule.If the diameter of water molecule is 0.003 μ m,, prevent the seepage of water molecule to metal seal ball valve, even if surface through fine abrasive, protruding peak, metal surface still surpasses 0.1 μ m, and is promptly big 30 times than water molecule diameter, is very difficult thing so will reach seal request.
The utility model can be realized by following mode: right valve barrel and left valve barrel are formed the shell of ball valve, guide rod inserts in the elastic sphere, lower end of the guide rod is the wedge shape inclined-plane, and there is spiral guide slot at the middle part, and the upper end connects with drive unit, guide rod is equipped with guide bar support outward, the guide bar support lower end connects with valve body, and the upper end connects with drive unit, and drive unit is manual actuating device, also can be pneumatic actuating device, or electric performance device.Axle sleeve and filler are housed in the guide bar support, and guide bar support is equipped with guide finger assembly, oil injection component and greasing assembly outward, and the guiding groove of guide finger bearing pin and guide rod matches, and clamp sleeve is equipped with in the filler upper end, and upper seal support is equipped with in the lower end.The internals combination of floating is housed in the shell of ball valve, comprises elastic sphere, floating valve seat, elastic sealing gasket and adjustment pad, elastic sphere has wire casing along ball hole direction.
The utility model carries out leakage test, leakage rate reaches the regulation of GB/T13927, even reaches zero leakage, and the part of process retrofit reaches no deformation process, pollution-free, wear resistance and the anti-stick ability of connecing are good, and flexible operation is light, and crocking resistance is superior, through 10,000 load operation, abrasive vestige does not appear in the elastic sphere sealing surface, and the operation moment of torsion is little, has last sealing function.The utility model is mainly used in and blocks or connect MEDIA FLOW, can be used for control oil, water, steam and various aggressive chemistry medium, and all right conveying solid substance medium is as breeze, silica flour, plastic grain, mud, cement, ashes etc.
Below in conjunction with accompanying drawing, the utility model will be further described.
Please read Fig. 1, right valve barrel 1 and left valve barrel 2 are formed the shell of ball valves, guide rod 4 inserts in the elastic sphere 3, and guide rod 4 lower ends are wedge shape inclined-planes, and there is spiral guide slot 9 at the middle part, the upper end connects with drive unit, outside the guide rod 4 guide bar support 17 is housed, guide bar support 17 lower ends connect with valve body, and the upper end connects with drive unit, axle sleeve 8 and filler 15 are housed in the guide bar support 17, and 17 pairs of guide rods 4 of guide bar support lead and dual sealing.Guide bar support 17 outer guide finger assembly 10, oil injection component 11 and the greasing assemblies 14 of being equipped with, guide finger assembly 10 is the bearing pins that roll flexibly, and correct guiding is carried out in the motion of guide rod 4, the guiding groove 9 of guide finger bearing pin and guide rod matches.Oil injection component 11 is the certain number of times of guiding groove 9 every operations to guide rod, the lubricant grease of suitably annotating, if the medium that uses does not allow to be stained with grease, but non-refuelling fat then.Greasing oil part 14 aiming axis can compress filler 15 suitably to axial expansion set 13 greasings to expansion set 13, increase sealing force.Clamp sleeve 16 is equipped with in filler 15 upper ends, and upper seal support 12 is equipped with in the filler lower end.Upper seal support is the stainless steel product, has the seal band of light, when guide rod 4 rises to limit position, the sealing strip of guide rod 4 contacts with sealing seat, and the closed inner chamber pressure medium is when ball valve is in the closed position, the pressure of inner chamber descends or disappears, and the sealing of guide rod at this moment relies on filler 15.The internals combination of floating is housed in the shell of ball valve, comprise elastic sphere 3, floating valve seat 5, elastic packing seat 6 and adjust pad 7, elastic sphere 3 is connected to floating valve seat 5, elastic sealing gasket 6 in turn and adjusts pad 7, and elastic sphere 3 has wire casing 19 along ball hole direction.Drive unit is manual actuating device 18, also can be pneumatic actuating device 20, or electric performance device 21.
The utility model relies on the downward active force of guide rod 4 in implementing seal process, by guide rod wedge shape inclined-plane power is delivered to elastic sphere 3, make elastic sphere forwards, backwards floating valve seat 5 press close to, in the automatic anastomosis procedures of sealing, elastic sphere on relative central position, can about slight displacement.When elastic sphere touches left valve barrel 2 and right valve barrel 1, floating valve seat 5 can have a spot of axial displacement and radial displacement, even a spot of wallowing motion can be arranged, in coincideing, find correct position automatically, left and right sides elastic sealing gasket 6 compensates, and at this moment guide rod 4 continues to exert pressure to elastic sphere, adopts and forces to compress mode, sealing force substantially exceeds conventional spring sealed power, impels correlated parts generation resiliently deformable and realizes sealing.After sealing was finished, internals were similar to rigid construction, and the pressure of upstream medium can not make elastic sphere and guide rod Off center.
When the utility model is used as the opening and closing ball valve, if drive unit is manual actuating device 18, the sense of rotation mark is arranged on the handwheel plane, handwheel clockwise turns to closes ball valve, and the handwheel inhour rotates to be opens ball valve.The afterbody of guide rod is installed an indicating arm, when indicating arm drops to when equal with case, illustrates that ball valve is in the hermetically closing position; When rising, indicating arm exceeds case, when indicating arm red line mark is equal with plane on the case, illustrate that ball valve is in fully open position, at this moment the last sealing surface of guide rod contacts with the conical surface of the upper seal support 12 at guide bar support 17 middle parts, during rotation hand wheel, feel tangible resistance again.
Please read Fig. 2, if drive unit is pneumatic actuating device 20, when piston descends, piston rod promotes guide rod and descends, the guiding groove 9 of guide rod bottom is subjected to guide finger control and rotates, when elastic sphere 3 during in closed position, piston continues down, two sealing surfaces that the wedge shape inclined-plane that promotes guide rod forces elastic sphere 3 forwards, backwards floating valve seat 5 near.Cylinder piston continues down, by the approximate rigid construction of guide rod inclined-plane swelling elastic sphere, realizes sealing fully.When needs were opened ball valve, piston drove guide rod upwards by piston rod, and the guiding groove 9 of guide rod upwards slides in the control of guide finger, guide rod wedge shape inclined-plane withdraws from elastic sphere, elastic sphere shrinks by elastic force, and guide rod continues straight line upwards, through the time-delay release stage, elastic sphere contacts with floating valve seat is loose, the pressure reduction at ball valve two ends progressively reduces, and guide rod upwards enters spiral guide slot 9, drives elastic sphere 3 half-twists, port hole is opened last locking elastic spheroid 3.The bleed pressure of pneumatic actuating device 20 is by control of solenoid valve near-earth or remote operation, the characteristic that keeps elastic sphere to open fast or block.
Please read Fig. 3, if drive unit is electric performance device 21, electric performance device can have multiple model selective supporting, and Fig. 3 is a Unic straight line type series, and characteristics are miniaturizations, and are in light weight, and higher output torque is arranged, and shortcoming is that open-to close actuation time longer.If adopt swivel nut electric rotary actuating device, setting height(from bottom) can lower.
Claims (6)
1, a kind of elastic ball metal seal ball valve, right valve barrel (1) and left valve barrel (2) are formed the shell of ball valve, guide rod (4) inserts in the elastic sphere (3), guide rod (4) lower end is the wedge shape inclined-plane, there is spiral guide slot (9) at the middle part, the upper end connects with drive unit, the outer guide bar support (17) that is equipped with of guide rod (4), guide bar support (17) lower end connects with valve body, the upper end connects with drive unit, axle sleeve (8) and filler (15) are housed in the guide bar support (17), the outer guide finger assembly (10) that is equipped with of guide bar support (17), oil injection component (11) and greasing assembly (14), the guiding groove of guide finger bearing pin and guide rod (9) matches, it is characterized in that being equipped with in the shell of ball valve the internals combination of floating, comprise elastic sphere (3), floating valve seat (5), elastic packing seat (6) and adjustment pad (7), elastic sphere (3) is connected to floating valve seat (5) in turn, elastic sealing gasket (6) and adjustment pad (7), elastic sphere (3) has wire casing (19) along ball hole direction.
2,, it is characterized in that greasing oil part (14) aiming axis is to expansion set (13) according to the described elastic ball metal seal ball valve of claim 1.
3,, it is characterized in that filler (15) lower end is equipped with upper seal support (12) according to the described elastic ball metal seal ball valve of claim 1.
4,, it is characterized in that drive unit is manual actuating device (18) according to the described elastic ball metal seal ball valve of claim 1.
5,, it is characterized in that drive unit is pneumatic actuating device (20) according to the described elastic ball metal seal ball valve of claim 1.
6,, it is characterized in that drive unit is electric performance device (21) according to the described elastic ball metal seal ball valve of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237112 CN2549282Y (en) | 2002-06-05 | 2002-06-05 | Elastic ball metal sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237112 CN2549282Y (en) | 2002-06-05 | 2002-06-05 | Elastic ball metal sealed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549282Y true CN2549282Y (en) | 2003-05-07 |
Family
ID=33711188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02237112 Expired - Fee Related CN2549282Y (en) | 2002-06-05 | 2002-06-05 | Elastic ball metal sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549282Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114653A (en) * | 2015-09-29 | 2015-12-02 | 无锡海力自控工程有限公司 | Floating type multi-phase cut-off repose angle valve |
| CN105134991A (en) * | 2015-07-23 | 2015-12-09 | 苏州科迪流体控制设备有限公司 | Novel cock valve |
| CN105333169A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Electric ball valve structure |
| CN107044546A (en) * | 2017-06-01 | 2017-08-15 | 精工阀门有限公司 | Hard seal ball valve |
-
2002
- 2002-06-05 CN CN 02237112 patent/CN2549282Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134991A (en) * | 2015-07-23 | 2015-12-09 | 苏州科迪流体控制设备有限公司 | Novel cock valve |
| CN105114653A (en) * | 2015-09-29 | 2015-12-02 | 无锡海力自控工程有限公司 | Floating type multi-phase cut-off repose angle valve |
| CN105333169A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Electric ball valve structure |
| CN107044546A (en) * | 2017-06-01 | 2017-08-15 | 精工阀门有限公司 | Hard seal ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |