CN104633147B - Vane guiding high-pressure string-type valve core structure - Google Patents
Vane guiding high-pressure string-type valve core structure Download PDFInfo
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- CN104633147B CN104633147B CN201510073373.6A CN201510073373A CN104633147B CN 104633147 B CN104633147 B CN 104633147B CN 201510073373 A CN201510073373 A CN 201510073373A CN 104633147 B CN104633147 B CN 104633147B
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- valve
- valve seat
- blade
- string
- string data
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a vane guiding high-pressure string-type valve core structure. The vane guiding high-pressure string-type valve core structure comprises a valve body, a valve seat is mounted in the valve body, a string-type valve core is disposed in the valve seat, and a guiding pressure sleeve is fixed on the upper portion of the valve seat. The vane guiding high-pressure string-type valve core structure is characterized in that a plurality of circulating holes are formed from bottom to top along an inner cavity of the valve seat, inner diameter of the circulating holes is larger than that of the inner cavity of the valve seat, the string-type valve core penetrates the circulating holes, a plurality of vanes are distributed on the string-type valve core, outer circles of the vanes are tightly matched with the inner cavity of the valve seat, transition between lower ends of the vanes and the outer surface of the string-type valve core is achieved by means of first section circular arcs, transition between the lower ends of the vanes and upper ends of the vanes is achieved by means of second section circular arcs, the first section circular arcs and the second section circular arcs form adjusting curved surfaces, lengths of adjusting curved surfaces of all vanes are equal, and the top of the string-type valve core and the top of the inner cavity of the valve seat are sealed by means of a conical sealing surface. By means of the vane guiding high-pressure string-type valve core structure, phenomena of fluid flash evaporation and cavitation can be effectively reduced, washing of media to valve trim is decreased, and noise is reduced.
Description
Technical field
The present invention relates to a kind of regulation valve core structure, especially a kind of to be applied to High Pressure Difference, contain granule medium simultaneously
The blade guidance type high pressure string data valve core structure of operating mode.
Background technology
As the industry such as petrochemical industry, Coal Chemical Industry, thermal power plant, nuclear power station fluid pressure is to wanting that more high pressure drop develops
Ask so that valve is also easy to produce the phenomenons such as flash distillation, cavitation, valve stem crack under this operating mode.Such asking is solved in currently available technology
The method great majority of topic adopt maze-type structure and AND DEWATERING FOR ORIFICE STRUCTURE, although above two scheme can reach noise reduction, reduction of speed will
Ask, while meet reduce flash distillation, the generation of the phenomenon such as cavitation, but work as
When big, all easily there is coking, bonding, the phenomenon of blocking in maze-type structure and orifice-plate type structure, so as to have influence on the normal of valve
Use.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of blade guidance type high pressure string data valve element
Structure, the structure can effectively reduce the generation of fluid flash distillation, cavitation phenomenons, reduce medium washing away and reduce to trim
The generation of noise；Can meet to the control containing granule medium again simultaneously, it is to avoid blockage phenomenon, reach prolongation valve and use
The effect in life-span.
According to the technical scheme that the present invention is provided, a kind of blade guidance type high pressure string data valve core structure, including valve body, in valve
Valve seat being installed in vivo, string data valve element being installed in valve seat, guiding gland is fixed with valve seat top, string data valve element is passed through and led
To gland；It is characterized in that：Multiple openings are formed from bottom to up along the valve base cavity, and the internal diameter of opening is more than valve base cavity
Internal diameter；The string data valve element passes through opening, and multistage blade is distributed on string data valve element, and the inner chamber of the cylindrical and valve seat of blade is tight
Coordinate；By first paragraph arc transition between the lower end of the blade and the outer surface of string data valve element, lower end and the blade of blade
By second segment arc transition between upper end, first paragraph circular arc and second segment circular arc are formed and adjust curved surface, and the regulation of every section of blade is bent
The identical length in face is same；Sealed by conical seal (contact) face between the top of string data valve element and the top of valve base cavity.
Further, the blade is formed in one with string data valve element.
Further, every section of blade is four, is uniformly distributed in the outer surface of string data valve element.
Further, gasket seal is installed between the valve body and valve seat.
Compared with the prior art this practicality newly has the characteristics that：
（1）String data valve element with the integrally formed blade of its body, this structure ensure that the overall rigidity of string data valve element
Intensity；String data valve element is fitted close with valve base cavity so as to which, in axially-movable, valve seat can play guide effect to it, keep away
Exempt from string data valve element because of fractureing for causing of violent concussion, enhance the reliability that valve is used；
（2）Because considering negotiability, it is sturdy that the rigidity of string data valve element lower end guide post can not possibly be designed, and severe
Under operating mode, meticulous guide post often bends, and causes valve element stuck inside valve seat；But integrally formed blade is oriented to
Would not there is such phenomenon in formula string data valve element；
（3）Due to the gap between string data valve element and valve seat it is less, in the case of small guide vane, by high accuracy valve element
The control of curved surface, can reach the adjustable requirement of low discharge；
（4）Due to being interacted with string data valve element using multistage opening so that medium is along parallel to valve element and circulation
The direction in hole is moved upwards, by multiple turnings on string data valve element, high pressure drop is evenly distributed on several valve elements, is realized with this
Blood pressure lowering, the effect of noise reduction；
（5）As string data valve element is per level length and valve element curved surface is all identical, therefore any one adjusts the damage of curved surface not
The integrally-regulated performance of valve is influenced whether, the service life of valve is extended.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
A-A sectional views of the Fig. 2 for Fig. 1.
Specific embodiment
With reference to concrete accompanying drawing, the invention will be further described.
As shown in Fig. 1～Fig. 2：The blade guidance type high pressure string data valve core structure includes valve body 1, valve seat 2, string data valve element
3rd, gland 4, gasket seal 5, opening 6, blade 7, regulation curved surface 8 etc. are oriented to.
As shown in figure 1, the present invention includes valve body 1, valve seat 2 is installed in valve body 1, string data valve is installed in valve seat 2
Core 3, is fixed with guiding gland 4 on 2 top of valve seat, and string data valve element 3 is through guiding gland 4；Between the valve body 1 and valve seat 2
Gasket seal 5 is installed, the function of the sealing of valve seat 2 is played；
As shown in Figure 1 and Figure 2, multiple openings 6 are formed from bottom to up along 2 inner chamber of the valve seat, the internal diameter of opening 6 is big
In the internal diameter of 2 inner chamber of valve seat；The string data valve element 3 passes through opening 6, and multistage blade 7, blade and string are distributed on string data valve element 3
Formula valve element 3 is formed in one, and every section of blade 7 is four, is uniformly distributed in the outer surface of string data valve element 3, the cylindrical and valve of blade 7
The inner chamber of seat 6 is fitted close；As shown in figure 1, being justified by first paragraph between the outer surface of the lower end of the blade 7 and string data valve element 3
Arc transition, by second segment arc transition between the lower end of blade 7 and the upper end of blade 7, first paragraph circular arc and second segment circular arc
Into curved surface 8 is adjusted, the identical length of the regulation curved surface 8 of every section of blade 7 is same；The top of the string data valve element 3 and 2 inner chamber of valve seat
Sealed by conical seal (contact) face between top；
The string data valve element 3 adjusts curved surface 8 and can realize multiple turnings of medium, i.e. multilevel decompression series, and generally 3
～5 grades, the quantity of opening 6 is identical with the blood pressure lowering series of string data valve element 3.
2 sealing surface of the valve seat is processed using fine grinding mode with 3 sealing surface of string data valve element, and valve seat 2 is equal with string data valve element 3
Using cure process.
The operation principle of the present invention is as follows：In the inner chamber that medium enters valve body 1 from the intake channel of regulating valve, flow to as low
Enter to be higher by, rate-of flow is controlled by adjusting the relative position of string data valve element 3 and valve seat 2, so as to reach needs
Flow.The string data valve element 3 that the present invention is adopted adopts integrally formed blade, it is ensured that the rigid of part；Valve seat 2 is to string data
The guide effect of valve element 3, it is to avoid what string data valve element 3 caused because acutely shaking fractures, and increased the reliability that valve is used.
The blade guide type structure that the present invention is adopted effectively can be solved because considering negotiability, be unable to the guide post of lower end
It is made sturdy, under complicated operating mode, meticulous guide post is often bent because being collided with valve seat, causes valve element in valve
Seat is internal stuck；But would not there is the generation of such phenomenon in integrally formed blade guide type string data valve element 3, it is ensured that valve
The reliability for using.
The present invention adopts less gap between string data valve element 3 and valve seat 2 to coordinate, in the case of small guide vane, by right
The control of high accuracy valve element curved surface, can reach the adjustable effect of low discharge.The present invention is using multistage opening in valve seat 2 and string
Formula valve element 3 interacts so that medium is moved upwards along the direction parallel to valve element with opening, by string data valve element 3
Multiple turnings, high pressure drop is evenly distributed on several valve elements, the function of blood pressure lowering, noise reduction is realized with this.The string that the present invention is adopted
Per grade of length and adjust that curved surface is all identical in formula valve element 3, therefore any one adjusts the damage of curved surface all without having influence on valve
Integrally-regulated performance, extend the service life of valve.
Claims (1)
1. a kind of blade guidance type high pressure string data valve core structure, including valve body（1）, in valve body（1）Valve seat is inside installed（2）,
Valve seat（2）String data valve element is inside installed（3）, in valve seat（2）Top is fixed with guiding gland（4）, string data valve element（3）Through guiding
Gland（4）；It is characterized in that：Along the valve seat（2）Inner chamber forms multiple openings from bottom to up（6）, opening（6）Internal diameter it is big
In valve seat（2）The internal diameter of inner chamber；The string data valve element（3）Through opening（6）, string data valve element（3）Upper distribution multistage blade
（7）, blade（7）Cylindrical and valve seat（2）Inner chamber be fitted close；The blade（7）Lower end and string data valve element（3）Appearance
By first paragraph arc transition, blade between face（7）Lower end and blade（7）Upper end between by second segment arc transition, first
Section circular arc and second segment circular arc are formed and adjust curved surface（8）, every section of blade（7）Regulation curved surface（8）Identical length it is same；The string
Formula valve element（3）Top and valve seat（2）Sealed by conical seal (contact) face between the top of inner chamber；
The blade（7）With string data valve element（3）It is formed in one；Every section of blade（7）For four, string data valve element is uniformly distributed in
（3）Outer surface；In the valve body（1）And valve seat（2）Between gasket seal is installed（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073373.6A CN104633147B (en) | 2015-02-10 | 2015-02-10 | Vane guiding high-pressure string-type valve core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073373.6A CN104633147B (en) | 2015-02-10 | 2015-02-10 | Vane guiding high-pressure string-type valve core structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633147A CN104633147A (en) | 2015-05-20 |
| CN104633147B true CN104633147B (en) | 2017-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510073373.6A Active CN104633147B (en) | 2015-02-10 | 2015-02-10 | Vane guiding high-pressure string-type valve core structure |
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| CN (1) | CN104633147B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420633B (en) * | 2017-07-24 | 2019-03-12 | 中国矿业大学 | A kind of novel flow control valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3515370A (en) * | 1967-05-01 | 1970-06-02 | Baldwin Lima Hamilton Corp | Multistage throttle valve |
| US4363464A (en) * | 1980-07-03 | 1982-12-14 | Spils Richard W | Angle globe valve |
| CN102705574A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Pressure balancing type multi-section and multi-stage depressurization sleeve guiding regulating valve |
| CN103591353B (en) * | 2013-11-20 | 2015-12-30 | 无锡智能自控工程股份有限公司 | High pressure micro-flow tandem type modulating valve |
| CN204533583U (en) * | 2015-02-10 | 2015-08-05 | 无锡智能自控工程股份有限公司 | Blade guidance type high pressure string data valve core structure |
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- 2015-02-10 CN CN201510073373.6A patent/CN104633147B/en active Active
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| Publication number | Publication date |
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| CN104633147A (en) | 2015-05-20 |
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