CN202927123U - One-way sealing top-loading adjustable ball valve - Google Patents
One-way sealing top-loading adjustable ball valve Download PDFInfo
- Publication number
- CN202927123U CN202927123U CN 201220591553 CN201220591553U CN202927123U CN 202927123 U CN202927123 U CN 202927123U CN 201220591553 CN201220591553 CN 201220591553 CN 201220591553 U CN201220591553 U CN 201220591553U CN 202927123 U CN202927123 U CN 202927123U
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Abstract
The utility model relates to a one-way sealing top-loading adjustable ball valve. An integrated valve ball is mainly adopted to be mounted in a valve body, and is centered and positioned through a bottom shaft spherical surface and a lower bushing to form a fixed ball structure; a valve base is tightly pressed on the integrated valve ball to form sealing; a sealing support ring, an axial graphite filler, a pre-tightening ring and a spring are assembled between the valve body and the valve base; the axial graphite filler is mounted between a filler support ring and the valve base; a transmission shaft of the integrated valve ball is sequentially provided with an upper bushing, an upper plane bearing and a filler box module; and a filler gland is pressed on the filler box module. The valve has a precise adjusting effect on a medium, reduces micro sphere deformation due to temperature change and pressure change to ensure that the valve has excellent tightness under working conditions of high temperature and high pressure, can adapt to larger use pressure difference, effectively prolongs the service life, guarantees the safety and stability of equipment operation, and reduces maintenance and inspection costs.
Description
Technical field
The utility model relates to a kind of adjusting ball valve, and the roof-mounted adjusting ball valve of especially a kind of one-way sealing can be realized the adjusting sensitivity that cage pilot sleeve modulating valve is identical.
Background technique
Polyester fibre is made with PETG in industrial mass production, and commodity at home are called terylene, is topmost kind in present synthetic fiber.There is the valve of about 120 covers highi degree of accuracy, high regulating ratio pressure and Flow-rate adjustment in the process units of this series products, adjustable extent is 80:1～100:1 approximately, and common single seat and sleeve adjusting valve can not satisfy its regulating ratio demand fully, the regulating ratio of ball valve series products in the market is 100:1～300:1, but its servo-actuated precision can't be less than 1% strict demand, for this reason, according to the characteristics of this type of operating mode and control requirement, needing a kind of regulating ratio of exploitation be the high servo-actuated precision adjusting ball valve of 300:1.
Summary of the invention
The purpose of this utility model is to overcome conventional ball valve and lays particular emphasis on the performance shortcomings that switch cuts off, thereby provides a kind of one-way sealing roof-mounted adjusting ball valve, and this adjusting ball valve has accurate regulating action to medium;
Can reduce temperature variation and pressure and change the spheroid micro-deformation that causes, and can guarantee that valve has good sealing under high temperature, high pressure operating mode.
According to the technological scheme that the utility model provides, the roof-mounted adjusting ball valve of one-way sealing comprises valve body, valve seat, upper cover, adopts screw fastening between upper cover and valve body; Also comprise sealing support ring, axially graphite packing, preload ring, spring, packing support ring, axially graphite packing, integral type valve ball, Gland, packing box assembly, upper plane bearing, upper lining, upper cover gasket seal and lower lining;
Described integral type valve ball is arranged in valve body, carries out centering by lower shaft spherical and lower lining and locates, and forms a fixedly spherical structure; Described valve seat is pressed on the integral type valve ball, forms sealing; Described sealing support ring, axially graphite packing, preload ring and spring are assemblied between valve body and valve seat, and spring plays the effect of pretension; Axially graphite packing is arranged between packing support ring and valve seat; Be equipped with successively on the transmission shaft of integral type valve ball lining, on plane bearing, packing box assembly, Gland is fitted on packing box assembly,
As further improvement of the utility model, described integral type valve ball comprises valve ball and transmission shaft.
As further improvement of the utility model, described integral type valve ball is provided with the V-type passage.
As further improvement of the utility model, the upper cover gasket seal is housed between described upper cover and valve body.
As further improvement of the utility model, described packing box assembly is set as the negative pressure of vacuum valve.
As further improvement of the utility model, be provided with the lower plane bearing between described integral type valve ball and valve body.
Compared with the prior art the utility model has the following advantages:
1, trim is packed into from the top, but on-line maintenance.
2, valve ball is determined window shape take accurate equal percentage flow characteristic as design considerations, makes it not only have shearing function to the foreign material that are attached on valve ball, and in rotary course, with the increase of aperture, medium is had accurate regulating action.
3, spheroid adopts ball, axle integral structure, without the transmission dead band; Reduce temperature variation and pressure and change the spheroid micro-deformation, particularly high temperature that causes, the micro-deformation under high-pressure situations, thereby guarantee also have good sealing under valve high temperature, high pressure operating mode.
4, lower shaft spherical structure facilitates the valve ball lower shaft to locate and reaches and valve seat centering, and body size is compact.
5, hydrodynamic pressure auxiliary seal reduces actuator's size greatly.
6, make the utility model can adapt to larger use pressure reduction; Effectively improve the working life of valve, guaranteed device security, operation reposefully, reduced and safeguard and the cost of overhaul, promoted economic benefit.
Description of drawings
Fig. 1 is the utility model Standard figure.
Fig. 2 is the utility model sealing configuration schematic diagram.
Fig. 3 is the utility model integral type valve ball schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As shown in Figure 1, the roof-mounted adjusting ball valve of one-way sealing is made of parts such as valve body 1, valve seat 2, sealing support ring 3, axially graphite packing 4, preload ring 5, spring 6, packing support ring 7, axially graphite packing 8, integral type valve ball 9, Gland 10, upper cover 11, packing box assembly 12, upper plane bearing 13, upper lining 14, upper cover gasket seal 15, lower plane bearing 16, lower linings 17.
Described valve seat 2, sealing support ring 3, axially graphite packing 4, preload ring 5, spring 6, packing support ring 7, axially graphite packing 8, integral type valve ball 9 are installed in valve body, wherein integral type valve ball 9 is located by its lower shaft spherical and lower lining 17 centerings, forms a fixedly spherical structure; Described valve seat 2 is pressed on integral type valve ball 9, forms sealing.Be provided with lower plane bearing 16 between integral type valve ball 9 and valve body 1.Valve ball when rotating all the time around self axis rotation, the variation that can not produce fluid volume.Described sealing support ring 3, axially graphite packing 4, preload ring 5 and spring 6 are assemblied between valve body 1 and valve seat 2, and spring 6 plays the effect of pretension.Axially graphite packing 8 is arranged between packing support ring 7 and valve seat 2.
Described integral type valve ball 9 comprises valve ball and transmission shaft, and described integral type valve ball 9 is provided with the V-type passage.Be equipped with successively on the transmission shaft of integral type valve ball 9 lining 14, on plane bearing 13, packing box assembly 12, Gland 10 is fitted on packing box assembly 12, between upper cover 11 and valve body 1, upper cover gasket seal 15 is housed, and adopts screw fastening.
When medium passed through runner, the pressure medium of its generation and initial tension of spring were pressed on integral type valve ball 9 valve seat 2, formed sealing.When spheroid turns to closed position, the radial force that produces spheroid by pressure medium passes on the valve shaft of integral type valve ball two ends, thereby alleviate to be produced by pressure medium and act on the radial force of spheroid to the wearing and tearing of valve seat, guarantee that the seal pressure of spheroid, valve base chamber is in suitable scope, during without pressure medium, sealing force provides by the elastic element that is installed on the valve seat back.
The utility model working principle:
The utility model adopts the roof-mounted structure of integral type valve ball one-way sealing, utilizes pressure medium and initial tension of spring that valve seat 2 and the sealing surface of integral type valve ball 9 are fitted tightly, and forms sealing.When integral type valve ball 9 turns to closed position, the radial force that produces spheroid by pressure medium passes on the valve shaft of valve ball two ends, thereby alleviate to be produced by pressure medium and act on the radial force of spheroid to the wearing and tearing of valve seat, guarantee that the seal pressure of spheroid, valve base chamber is in suitable scope, during without pressure medium, sealing force is by being installed on the elastic element generation at valve seat back.
The utility model is made of one formula with valve ball and transmission shaft, V-type passage on valve ball with equal percentage flow characteristic as design considerations, it not only has good shear action to harsh foreign material such as fiber medium, slurry, powder, also has very outstanding regulatory function.The non-deformability of integral type valve ball 9 also is greatly improved simultaneously, makes the utility model can adapt to larger use pressure reduction.
The utility model also is designed to the negative pressure of vacuum valve with packing box assembly 12 and can uses.
Claims (6)
1. the roof-mounted adjusting ball valve of one-way sealing, comprise valve body (1), valve seat (2), upper cover (11); Upper cover (11) adopts screw fastening with valve body (1); It is characterized in that: also comprise sealing support ring (3), axially graphite packing (4), preload ring (5), spring (6), packing support ring (7), axially graphite packing (8), integral type valve ball (9), Gland (10), packing box assembly (12), upper plane bearing (13), upper lining (14) and lower lining (17);
Described integral type valve ball (9) is arranged in valve body (1), carries out centering by lower shaft spherical and lower lining (17) and locates, and forms a fixedly spherical structure; Described valve seat (2) is pressed on upper formation of integral type valve ball (9) and seals; Described sealing support ring (3), axially graphite packing (4), preload ring (5) and spring (6) are assemblied between valve body (1) and valve seat (2), and spring (6) plays the effect of pretension; Axially graphite packing (8) is arranged between packing support ring (7) and valve seat (2); Upper lining (14), upper plane bearing (13), packing box assembly (12) are housed on the transmission shaft of integral type valve ball (9) successively, and Gland (10) is fitted on packing box assembly (12).
2. the roof-mounted adjusting ball valve of one-way sealing as claimed in claim 1, it is characterized in that: described integral type valve ball (9) comprises valve ball and transmission shaft.
3. the roof-mounted adjusting ball valve of one-way sealing as claimed in claim 1, it is characterized in that: described integral type valve ball (9) is provided with the V-type passage.
4. the roof-mounted adjusting ball valve of one-way sealing as claimed in claim 1, is characterized in that: between described upper cover (11) and valve body (1), upper cover gasket seal (15) is housed.
5. the roof-mounted adjusting ball valve of one-way sealing as claimed in claim 1, it is characterized in that: described packing box assembly (12) is set as the negative pressure of vacuum valve.
6. the roof-mounted adjusting ball valve of one-way sealing as claimed in claim 1, is characterized in that: described
Be provided with lower plane bearing (16) between integral type valve ball (9) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591553 CN202927123U (en) | 2012-11-10 | 2012-11-10 | One-way sealing top-loading adjustable ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591553 CN202927123U (en) | 2012-11-10 | 2012-11-10 | One-way sealing top-loading adjustable ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927123U true CN202927123U (en) | 2013-05-08 |
Family
ID=48217082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220591553 Expired - Lifetime CN202927123U (en) | 2012-11-10 | 2012-11-10 | One-way sealing top-loading adjustable ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927123U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927311A (en) * | 2012-11-10 | 2013-02-13 | 无锡智能自控工程股份有限公司 | One-way sealing top-installing adjusting ball valve |
| CN103591320A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | Novel positioning structure for valve rod of regulating valve |
| CN103615564A (en) * | 2013-11-20 | 2014-03-05 | 无锡智能自控工程股份有限公司 | Material blocking preventing structure for top mounting ball valve lower shaft |
| CN113217660A (en) * | 2021-05-25 | 2021-08-06 | 东宝阀门有限公司 | Ball valve |
-
2012
- 2012-11-10 CN CN 201220591553 patent/CN202927123U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927311A (en) * | 2012-11-10 | 2013-02-13 | 无锡智能自控工程股份有限公司 | One-way sealing top-installing adjusting ball valve |
| CN103591320A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | Novel positioning structure for valve rod of regulating valve |
| CN103615564A (en) * | 2013-11-20 | 2014-03-05 | 无锡智能自控工程股份有限公司 | Material blocking preventing structure for top mounting ball valve lower shaft |
| CN113217660A (en) * | 2021-05-25 | 2021-08-06 | 东宝阀门有限公司 | Ball valve |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |