CN104633147A - 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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- CN104633147A CN104633147A CN201510073373.6A CN201510073373A CN104633147A CN 104633147 A CN104633147 A CN 104633147A CN 201510073373 A CN201510073373 A CN 201510073373A CN 104633147 A CN104633147 A CN 104633147A
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- string data
- valve seat
- blade
- valve core
- string
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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 blade guidance type high pressure string data valve core structure being applicable to High Pressure Difference, containing granule medium operating mode simultaneously.
Background technique
Along with the industry fluid pressure such as petrochemical industry, Coal Chemical Industry, thermal power plant, nuclear power station are to the requirement of more high pressure drop development, valve is made easily to produce the phenomenons such as flash distillation, cavitation, valve stem crack under this operating mode.The method great majority solving problems in currently available technology adopt maze-type structure and orifice structure, although above-mentioned two schemes can reach the requirement of noise reduction, reduction of speed, meet the generation reducing the phenomenon such as flash distillation, cavitation simultaneously, but when containing a large amount of particles in medium or dielectric viscosity is too large, all easily there is the phenomenon of coking, bonding, blocking in maze-type structure and orifice-plate type structure, thus has influence on the normal use of valve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of blade guidance type high pressure string data valve core structure, this structure effectively can reduce the generation of fluid flash distillation, cavitation phenomenons, reduces medium to the generation washing away and reduce noise of trim; Can meet the control containing granule medium again simultaneously, avoid blockage phenomenon, reach the effect extending valve working life.
According to technological scheme provided by the invention, a kind of blade guidance type high pressure string data valve core structure, comprises valve body, in valve body, is provided with valve seat, be provided with string data spool in valve seat, be fixed with guiding gland on valve seat top, and string data spool is through guiding gland; Feature is: form multiple opening from bottom to up along described valve base cavity, and the internal diameter of opening is greater than the internal diameter of valve base cavity; Described string data spool is through opening, and string data spool distributes multistage blade, and the cylindrical of blade and the inner chamber of valve seat closely cooperate; By first paragraph arc transition between the lower end of described blade and the outer surface of string data spool, by second segment arc transition between the lower end of blade and the upper end of blade, first paragraph circular arc and second segment circular arc are formed and regulate curved surface, and the identical length of the adjustment curved surface of every section of blade is same; Sealed by conical seal (contact) face between the top of described string data spool and the top of valve base cavity.
Further, described blade and string data spool are formed in one.
Further, every section of blade is four, is uniformly distributed in the outer surface of string data spool.
Further, between described valve body and valve seat, gasket seal is installed.
Compared with the prior art this practicality newly has following characteristics:
(1) string data spool has the integrated blade with its body, and this structure ensure that the rigid of string data spool entirety; String data spool and valve base cavity closely cooperate, and make it when axial motion, valve seat can play leading role to it, and what avoid that string data spool causes because of concuss fractures, and enhances the reliability that valve uses;
(2) because considering negotiability, it is sturdy that the rigidity of string data spool lower end guide rod can not design, and under bad working environments, meticulous guide rod often bends, and causes spool stuck in valve seat inside; But this type of phenomenon would not be there is in integrated blade guiding type string data spool;
(3) because the gap between string data spool and valve seat is less, when small guide vane, by the control to highi degree of accuracy spool curved surface, the requirement that small flow is adjustable can be reached;
(4) owing to adopting multilevel flow through hole and string data spool to interact, medium is moved upward along the direction being parallel to spool and opening, by turning multiple on string data spool, high pressure drop is evenly distributed on several spool, realizes the effect of step-down, noise reduction with this;
(5) because the every level length of string data spool is all identical with spool curved surface, therefore any one regulates the damage of curved surface all can not have influence on the integrally-regulated performance of valve, extends the working life of valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Fig. 1 ~ Fig. 2: as described in blade guidance type high pressure string data valve core structure comprise valve body 1, valve seat 2, string data spool 3, guiding gland 4, gasket seal 5, opening 6, blade 7, regulate curved surface 8 etc.
As shown in Figure 1, the present invention includes valve body 1, be provided with valve seat 2 in valve body 1, be provided with string data spool 3 in valve seat 2, be fixed with guiding gland 4 on valve seat 2 top, string data spool 3 is through guiding gland 4; Between described valve body 1 and valve seat 2, gasket seal 5 is installed, plays the function that valve seat 2 seals;
As shown in Figure 1 and Figure 2, form multiple opening 6 from bottom to up along described valve seat 2 inner chamber, the internal diameter of opening 6 is greater than the internal diameter of valve seat 2 inner chamber; Described string data spool 3 is through opening 6, and string data spool 3 distributes multistage blade 7, and blade and string data spool 3 are formed in one, and every section of blade 7 is four, is uniformly distributed in the outer surface of string data spool 3, and the cylindrical of blade 7 and the inner chamber of valve seat 6 closely cooperate; As shown in Figure 1, by first paragraph arc transition between the lower end of described blade 7 and the outer surface of string data spool 3, 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 are formed and regulate curved surface 8, and the identical length of the adjustment curved surface 8 of every section of blade 7 is same; Sealed by conical seal (contact) face between the top of described string data spool 3 and the top of valve seat 2 inner chamber;
The adjustment curved surface 8 of described string data spool 3 can realize multiple turnings of medium, and namely multilevel decompression progression, is generally 3 ~ 5 grades, and the quantity of opening 6 is identical with the step-down progression of string data spool 3.
Described valve seat 2 sealing surface and string data spool 3 sealing surface all adopt fine grinding mode to process, and valve seat 2 and string data spool 3 all adopt cure process.
Working principle of the present invention is as follows: medium enters the inner chamber of valve body 1 from the inlet passage of modulating valve, flows to as low in and high out, by regulating string data spool 3 to control rate-of flow with the relative position of valve seat 2, thus reaches the flow of needs.The string data spool 3 that the present invention adopts adopts integrated blade, ensure that the rigid of part; The leading role of valve seat 2 pairs of string data spools 3, what avoid that string data spool 3 causes because of concuss fractures, and adds the reliability that valve uses.The blade guiding type structure that the present invention adopts can effectively solve because considering negotiability, and can not the guide rod of lower end be done sturdy, under the operating mode of complexity, meticulous guide rod often bends because colliding with valve seat, causes spool stuck in valve seat inside; But would not there is the generation of this type of phenomenon in integrated blade guiding type string data spool 3, ensure that the reliability that valve uses.
The present invention adopts Spielpassung less between string data spool 3 and valve seat 2, when small guide vane, by the control to highi degree of accuracy spool curved surface, can reach the effect that small flow is adjustable.The present invention adopts multilevel flow through hole and string data spool 3 in valve seat 2 to interact, medium is moved upward along the direction being parallel to spool and opening, by turning multiple on string data spool 3, high pressure drop is evenly distributed on several spool, realizes the function of step-down, noise reduction with this.In the string data spool 3 that the present invention adopts, the length of every grade is all identical with adjustment curved surface, therefore any one regulates the damage of curved surface all can not have influence on the integrally-regulated performance of valve, extends the working life of valve.
Claims (4)
1. a blade guidance type high pressure string data valve core structure, comprise valve body (1), valve seat (2) is installed in valve body (1), string data spool (3) is installed in valve seat (2), be fixed with guiding gland (4) on valve seat (2) top, string data spool (3) is through guiding gland (4); It is characterized in that: form multiple opening (6) from bottom to up along described valve seat (2) inner chamber, the internal diameter of opening (6) is greater than the internal diameter of valve seat (2) inner chamber; Described string data spool (3) is through opening (6), and string data spool (3) is distribution multistage blade (7) above, and the cylindrical of blade (7) and the inner chamber of valve seat (6) closely cooperate; By first paragraph arc transition between the lower end of described blade (7) and the outer surface of string data spool (3), 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 are formed and regulate curved surface (8), and the identical length of the adjustment curved surface (8) of every section of blade (7) is same; Sealed by conical seal (contact) face between the top of described string data spool (3) and the top of valve seat (2) inner chamber.
2. blade guidance type high pressure string data valve core structure as claimed in claim 1, is characterized in that: described blade (7) and string data spool (3) are formed in one.
3. blade guidance type high pressure string data valve core structure as claimed in claim 1, is characterized in that: every section of blade (7) is four, is uniformly distributed in the outer surface of string data spool (3).
4. blade guidance type high pressure string data valve core structure as claimed in claim 1, is characterized in that: between described valve body (1) and valve seat (2), be provided with gasket seal (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 true CN104633147A (en) | 2015-05-20 |
| CN104633147B CN104633147B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510073373.6A Active CN104633147B (en) | 2015-02-10 | 2015-02-10 | Vane guiding high-pressure string-type valve core structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420633A (en) * | 2017-07-24 | 2017-12-01 | 中国矿业大学 | A kind of novel flow control valve |
Citations (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 |
| CN103591353A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | High-pressure and micro-flow tandem type regulating 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 |
-
2015
- 2015-02-10 CN CN201510073373.6A patent/CN104633147B/en active Active
Patent Citations (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 |
| CN103591353A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | High-pressure and micro-flow tandem type regulating 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420633A (en) * | 2017-07-24 | 2017-12-01 | 中国矿业大学 | A kind of novel flow control valve |
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| CN104633147B (en) | 2017-04-12 |
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