CN208041201U - Tiny flow quantity V-type regulation ball valve - Google Patents
Tiny flow quantity V-type regulation ball valve Download PDFInfo
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- CN208041201U CN208041201U CN201820254159.XU CN201820254159U CN208041201U CN 208041201 U CN208041201 U CN 208041201U CN 201820254159 U CN201820254159 U CN 201820254159U CN 208041201 U CN208041201 U CN 208041201U
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Abstract
The utility model belongs to control valve for fluids technical field, it is related to a kind of tiny flow quantity V-type regulation ball valve, including valve body, valve inlet, valve outlet are coaxially disposed on the valve body, valve inlet corresponds to body cavity one end and valve inlet seam allowance is arranged, and valve outlet corresponds to body cavity one end and valve outlet seam allowance is arranged；Fixed valve base is installed in valve outlet stop portion, the first balanced seal ring is set between fixed valve base and valve body, retainer is installed in valve inlet stop portion, disk spring, support ring, the second balanced seal ring and regulating valve seat are installed successively in retainer.The ball valve tiny flow quantity is adjustable, modularized design, can replace valve seat according to actual condition, realize the adjusting of various tiny flow quantities, meet client's requirement；In addition, the ball-valve structure is compact, runner is through-type, and flow resistance is small, and the pressure loss is small, will not be effectively improved the service life of valve because generating cavitation, flash distillation to valve generation damage, save user maintenance cost.
Description
Technical field
The utility model belongs to control valve for fluids technical field, is related to a kind of tiny flow quantity V-type regulation ball valve.
Background technology
Currently, in industries such as petrochemical industry, electric power metallurgy, food, fine chemistry industries, little small flow single seat damper valve uses frequency
Rate is very high.Little small flow single seat damper valve becomes user's use because of the advantages that its is simple in structure, tiny flow quantity adjustable extent is wide
Preferential selection.But being constantly progressive with science and technology, the development of valve industry has also with the process modification of user
Significant progress.And little small flow single seat damper valve highlights deficiency then under present situation.Little small flow single seat damper valve is by single seat
Regulating valve develops, and has S-shaped runner, flow path is more complex, and the pressure loss is apparent, simultaneously because little small flow single seat damper valve
Retention area very little（Usual port mouthfuls of diameter≤5mm）, the spool coordinated with it is also necessarily designed to slender type, and valve is being transported
Often there is bite during row or flow is bigger than normal, tiny flow quantity failure of adjustment.During maintenance of valve, engineers hair
The reason of now causing the above phenomenon to occur is：Little small flow single seat damper valve is mounted in the pipeline big more than retention area, when
When medium especially liquid medium passes through vena contracta, once pressure is greatly reduced, flow velocity rapid increase, valve is susceptible to sky
Change, flass, directly destroy valve core sealed cover, the sealing surface because structure size is too small cannot direct built-up welding in technique
STELLITE is hardened, and molding is generally integrally machined with valve rod, whole using STELLITE, with high costs.In addition, slender type valve
Cored structure need to ensure that its guiding accuracy is very high, i.e., the processing of valve parts and assembly precision want high, once process quality control is not
Good, then valve occurs stuck.
Invention content
For the utility model in view of the above-mentioned problems, providing a kind of tiny flow quantity V-type regulation ball valve, which can
It adjusts, modularized design, can replace valve seat according to actual condition, realize the adjusting of various tiny flow quantities, meet client's use and want
It asks；In addition, the ball-valve structure is compact, runner is through-type, and flow resistance is small, and the pressure loss is small, will not be because generating cavitation, flash distillation to valve
Door generates damage, effectively improves the service life of valve, saves user maintenance cost.
According to the technical solution of the utility model：A kind of tiny flow quantity V-type regulation ball valve, it is characterised in that：Including valve body,
Valve inlet, valve outlet are coaxially disposed on the valve body, valve inlet corresponds to body cavity one end and valve inlet seam allowance, valve outlet is arranged
Corresponding to body cavity one end, valve outlet seam allowance is set；Fixed valve base is installed in valve outlet stop portion, fixed valve base and valve body it
Between the first balanced seal ring is set, retainer is installed in valve inlet stop portion, disk spring, support are installed successively in retainer
Ring, the second balanced seal ring and regulating valve seat；It is embedding in mounting groove on the opposite face of both the fixed valve base, regulating valve seat
Equipped with soft valve seat, valve ball is installed between fixed valve base, regulating valve seat, and valve ball is connect with soft valve seat dynamic sealing；It is connected on valve ball
There is valve rod, valve rod is protruding from the installation passage of valve body, and condiment component, valve rod is arranged around valve rod in the stuffing-box of valve body
Radial protrusion on the body of rod of lower part is supported on the boss of valve body stuffing-box lower part, and bushing, bushing are arranged on the stem lower portion body of rod
Lower end is supported on the radial boss formed on valve body.
As a further improvement of the utility model, tiny flow quantity adjustment curve is designed on the regulating valve seat.
There are slot, regulating valve seat to pass through slot and retainer on the regulating valve seat as a further improvement of the utility model,
It is connected by straight pin, prevents regulating valve seat transfer due to valve ball rotates, ensures that flow-rate adjustment is stablized, straight pin is set to holding
On frame.
The first balanced seal ring, the opening of the second balanced seal ring are equal as a further improvement of the utility model,
It is high-end in pressure medium.
The disk spring is located at bottom in retainer as a further improvement of the utility model, and disk spring provides
Elastic force ensure regulating valve seat be bonded always with valve ball.
The utility model has technical effect that：1, the valve seat in this patent retainer is regulating valve seat, i.e., in the valve seat
On be designed with tiny flow quantity adjustment curve, according to field working conditions difference, the valve seat can be replaced with modularization, with meet use want
It asks, it is adjustable that Cv values are less than 0.5 tiny flow quantity.
2, this patent can realize that flow is adjustable under High Pressure Difference, and slender type valve is compared by case-hardened ball surface
Core, contact area increase, and can bear the erosion of High Pressure Difference flow, valve service life is higher.
3, this patent retainer is connected with regulating valve seat by straight pin, and after preventing valve ball frequent movement, regulating valve seat has
The trend of transfer remains that fitting closely for valve ball and valve seat, flow-rate adjustment are stablized.
4, this patent is sealed in the form of soft and hard seal, and valve can realize zero leakage when closing, when valve opening
Required torque is small.
5, this patent valve seat back side uses balanced seal ring, substitutes the O-ring generally used, under high-pressure situations, sealing
Excellent effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of this patent embodiment.
Fig. 2 is the structural schematic diagram of regulating valve seat in Fig. 1.
Fig. 3 is the end view of regulating valve seat.
Fig. 4 is the axonometric drawing of regulating valve seat.
The enlarged drawing that Fig. 5 is in Fig. 1 I.
Specific implementation mode
Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings.
In Fig. 1 ~ 5, including the first balanced seal ring 1, fixed valve base 2, soft valve seat 3, regulating valve seat 4, adjustment curve 4a, slot
4b, support ring 5, disk spring 6, retainer 7, trim ring 8, valve body 9, valve inlet 9a, valve outlet 9b, valve inlet seam allowance 9c, valve go out
Mouth seam allowance 9d, bushing 10, condiment component 11, valve rod 12, straight pin 13, valve ball 14, second balanced seal ring 15 etc..
As shown in Fig. 1 ~ 5, the utility model is a kind of tiny flow quantity V-type regulation ball valve, including valve body 9, on the valve body 9
It is coaxially disposed valve inlet 9a, valve outlet 9b, valve inlet 9a corresponds to 9 inner cavity one end of valve body and valve inlet seam allowance 9c, valve outlet is arranged
9b corresponds to 9 inner cavity one end of valve body setting valve outlet seam allowance 9d；Fixed valve base 2, fixed valve base 2 are installed at valve outlet seam allowance 9d
First balanced seal ring 1 is set between valve body 9, retainer 7 is installed at valve inlet seam allowance 9c, is installed successively in retainer 7
Disk spring 6, support ring 5, the second balanced seal ring 15 and regulating valve seat 4；Both the fixed valve base 2, regulating valve seat 4 are opposite
Face on mounting groove in be embedded with soft valve seat 3, valve ball 14 is installed between fixed valve base 2, regulating valve seat 4, valve ball 14 with
3 dynamic sealing of soft valve seat connects, it is ensured that zero leakage seals, and small torque, which is realized, to be opened；Be connected with valve rod 12 on valve ball 14, valve rod 12 from
It is protruding in the installation passage of valve body 9, condiment component 11,12 lower part of valve rod are set around valve rod 12 in the stuffing-box of valve body 9
Radial protrusion on the body of rod is supported on the boss of 9 stuffing-box lower part of valve body, and bushing 10, bushing are arranged on the 12 lower part body of rod of valve rod
10 lower ends are supported on the radial boss formed on valve body 9.
Tiny flow quantity adjustment curve 4a is designed on regulating valve seat 4, according to different operating modes, the regulating valve seat 4 is replaceable, real
Existing modularized design.
There are slot 4b, regulating valve seat 4 to be connected by straight pin 13 with retainer 7 by slot 4b, prevent from adjusting on regulating valve seat 4
Transfer due to valve ball 14 rotates of valve seat 4 ensures that flow-rate adjustment is stablized, and straight pin 13 is set on retainer 7.
Opening high-end, the alternative O-ring that is in pressure medium of first balanced seal ring 1, the second balanced seal ring 15,
Realize that high pressure-temperature sealing effect is excellent.
Disk spring 6 is located at bottom in retainer 7, and the elastic force that disk spring 6 provides ensures that regulating valve seat 4 begins with valve ball 14
Fitting, valve have two way seal function eventually.
The course of work of the utility model is as follows：Valve inlet 9a of the medium through valve body 9 enters in trim, by regulating valve
Tiny flow quantity adjustment curve 4a on seat 4 enters valve ball channel, then flows into fixed valve base 2, until valve outlet 9b.Entire mistake
Cheng Zhong, regulating valve seat 4 coordinate the rotation angle of valve ball 14, determine the aperture of valve, the i.e. size of valve flow, realize Jie
The adjusting of matter tiny flow quantity.The structure type is ingenious, compact, overcomes precision after the long-time service of little small flow single seat damper valve
The problem of decline, realizes valve efficient operation for a long time.
Claims (5)
1. a kind of tiny flow quantity V-type regulation ball valve, it is characterised in that：Including valve body（9）, the valve body（9）Upper coaxial arrangement valve
Entrance（9a）, valve outlet（9b）, valve inlet（9a）Corresponding to valve body（9）Valve inlet seam allowance is arranged in inner cavity one end（9c）, valve outlet
（9b）Corresponding to valve body（9）Valve outlet seam allowance is arranged in inner cavity one end（9d）；In valve outlet seam allowance（9d）Place's installation fixed valve base
（2）, fixed valve base（2）With valve body（9）Between the first balanced seal ring is set（1）, in valve inlet seam allowance（9c）Place's installation is kept
Frame（7）, retainer（7）Disk spring is inside installed successively（6）, support ring（5）, the second balanced seal ring（15）And regulating valve seat
（4）；The fixed valve base（2）, regulating valve seat（4）Soft valve seat is embedded in mounting groove on the opposite face of the two（3）, valve ball
（14）It is installed on fixed valve base（2）, regulating valve seat（4）Between, valve ball（14）With soft valve seat（3）Dynamic sealing connects；Valve ball（14）
On be connected with valve rod（12）, valve rod（12）From valve body（9）Installation passage in protruding, valve body（9）Stuffing-box in surround
Valve rod（12）Condiment component is set（11）, valve rod（12）Radial protrusion on the body of rod of lower part is supported in valve body（9）Stuffing-box lower part
Boss on, valve rod（12）It is arranged bushing on the body of rod of lower part（10）, bushing（10）Lower end is supported in valve body（9）The radial direction of upper formation
On boss.
2. tiny flow quantity V-type regulation ball valve as described in claim 1, it is characterised in that：The regulating valve seat（4）On be designed with
Tiny flow quantity adjustment curve（4a）.
3. tiny flow quantity V-type regulation ball valve as described in claim 1, it is characterised in that：The regulating valve seat（4）On have slot
（4b）, regulating valve seat（4）Pass through slot（4b）With retainer（7）Pass through straight pin（13）It is connected, prevents regulating valve seat（4）Because of valve ball
（14）It rotates and transfer, ensures that flow-rate adjustment is stablized, straight pin（13）It is set to retainer（7）On.
4. tiny flow quantity V-type regulation ball valve as described in claim 1, it is characterised in that：The first balanced seal ring（1）,
Second balanced seal ring（15）Opening to be in pressure medium high-end.
5. tiny flow quantity V-type regulation ball valve as described in claim 1, it is characterised in that：The disk spring（6）Positioned at holding
Frame（7）Interior bottom, disk spring（6）The elastic force of offer ensures regulating valve seat（4）With valve ball（14）Always it is bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254159.XU CN208041201U (en) | 2018-02-12 | 2018-02-12 | Tiny flow quantity V-type regulation ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254159.XU CN208041201U (en) | 2018-02-12 | 2018-02-12 | Tiny flow quantity V-type regulation ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041201U true CN208041201U (en) | 2018-11-02 |
Family
ID=63953160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820254159.XU Active CN208041201U (en) | 2018-02-12 | 2018-02-12 | Tiny flow quantity V-type regulation ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286616A (en) * | 2018-02-12 | 2018-07-17 | 无锡智能自控工程股份有限公司 | Tiny flow quantity V-type regulation ball valve |
-
2018
- 2018-02-12 CN CN201820254159.XU patent/CN208041201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286616A (en) * | 2018-02-12 | 2018-07-17 | 无锡智能自控工程股份有限公司 | Tiny flow quantity V-type regulation ball valve |
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