CN108317298A - Low leakage pilot-operated type single-seat adjusting valve spool - Google Patents
Low leakage pilot-operated type single-seat adjusting valve spool Download PDFInfo
- Publication number
- CN108317298A CN108317298A CN201810177143.8A CN201810177143A CN108317298A CN 108317298 A CN108317298 A CN 108317298A CN 201810177143 A CN201810177143 A CN 201810177143A CN 108317298 A CN108317298 A CN 108317298A
- Authority
- CN
- China
- Prior art keywords
- spool
- gland
- valve
- sleeve
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000003276 anti-hypertensive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
Classifications
-
- 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to low leakage pilot-operated type single-seat adjusting valve spools, including spool gland, spool, gasket, soft spool, sleeve, spring, valve rod, general stopper ring, gland, balanced seal circle and clamp nut, are to use to be threadedly coupled between gland and spool；Gasket is installed between sleeve and spool；General stopper ring sealing is installed between gland and sleeve.When valve opening is in the stroke range of small valve core, small valve core plays adjustment effect, and big valve core still remains off, under the premise of ensureing original discharge characteristic, realize regulating valve more accurate flow-rate adjustment in small guide vane, that is, realize big regulating ratio.Meanwhile in small valve core opening process, the small sleeve for the structure that spiles can be to avoid obstruction stream be generated, can control valve generation vibration and noise.On the other hand, it is realization low leakage, big valve core uses soft sealing structure.The present invention has advantage easy to operate, easy for installation, safe and reliable, leakage rate is low.
Description
Technical field
The invention belongs to control valve technical field, more particularly to a kind of spool knot of low leakage pilot-operated type single-seat adjusting valve
Structure.
Background technology
With the growth of industrial circle the degree of automation, regulating valve plays in the automatic control system of modern plant
More and more important role, especially sleeve adjusting valve, because its negotiability is big, compact-sized, to be not easy blocking, degree of regulation high
The advantages that, even more favored by more and more enterprises.Conventional single-seat adjusting valve regulating ratio is 30:1 or 50:1.It is opened small
When spending, most of regulating valve currently on the market, the regulating valve of especially linear flow characteristic is can not to accomplish accurate flow
It adjusts.And Vehicles Collected from Market is faced, regulating valve needs to face various operating modes, however existing regulating valve is difficult to meet city
Field demand.
Invention content
For the above-mentioned prior art the problem of, the object of the present invention is to provide one kind realizing that flow is accurate in small guide vane
Adjust and keep the regulation valve core of low leakage.
The purpose of the present invention is what is realized by using following technical scheme：
A kind of low leakage pilot-operated type single-seat adjusting valve spool, the regulation valve core include spool gland, spool, gasket,
Soft spool, sleeve, spring, valve rod, general stopper ring, gland, balanced seal circle and clamp nut, spool gland and spool, gland with
It is that gasket is installed between sleeve and spool, general stopper ring is installed between gland and sleeve using threaded connection between spool
Sealing, during the work time, the valve rod is moved up and down along valve rod center line, and leading in balanced seal circle and valve rod shoulder
To under effect, holding action is vertical, steady.
As the preferred technical solution of the present invention, it is machined with slot on the upper valve core gland and gland, is easily installed.
As the preferred technical solution of the present invention, the sleeve is to spile structure, and antihypertensive effect is good, while noise reduction, being subtracted
It shakes.
As the preferred technical solution of the present invention, there is the gap of 0.2mm between the gland, clamp nut and valve rod,
It will not rub.
As the preferred technical solution of the present invention, the part of small valve core is served as in the valve rod lower end and valve rod shoulder adds
Work has runner, for linking up valve core cavity and valve inlet runner, to a certain extent reduce small valve core open when it is suffered not
Equilibrant force.
The beneficial effects of the invention are as follows：Compared with the existing technology, the present invention is when valve opening is in the stroke range of small valve core
When interior, small valve core plays adjustment effect, and big valve core still remains off, in the premise for ensureing original discharge characteristic
Under, it realizes regulating valve more accurate flow-rate adjustment in small guide vane, that is, realizes big regulating ratio.Meanwhile it being opened in small valve core
In the process, the small sleeve for the structure that spiles can be to avoid obstruction stream be generated, can control valve generation vibration and noise.Another party
Face, to realize that low leakage, big valve core use soft sealing structure.The present invention have it is easy to operate, it is easy for installation, safety can
It leans on, the advantages such as leakage rate is low.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structure principle chart of single-seat adjusting valve spool of the present invention.
Wherein；1. spool gland；2. spool；3. gasket；4. soft spool；5. sleeve；6. spring；7. valve rod；8. general stopper ring；
9. gland；10. balanced seal circle；11. clamp nut.
Specific implementation mode
As shown in Figure 1, a kind of low leakage pilot-operated type single-seat adjusting valve spool, including it is spool gland 1, spool 2, gasket 3, soft
Spool 4, sleeve 5, spring 6, valve rod 7, general stopper ring 8, gland 9, balanced seal circle 10 and clamp nut 11, spool gland 1 and valve
It is to use to be threadedly coupled between core 2, gland 9 and spool 2；Gasket 3 is installed between sleeve 5 and spool 2；Gland 9 and sleeve 5
Between be equipped with general stopper ring 8 sealing；During the work time, the valve rod 7 is moved up and down along its center line, in balanced seal circle
10 keep vertical, steady with the action of valve rod 7 under the guiding role of valve rod shoulder 7b, is made.
As the preferred embodiment of the present invention, the upper valve core gland 1 is machined with slot 1a and slot 9a respectively with gland 9,
The sleeve 5 is the structure that spiles, and has the gap of 0.2mm between the gland 9, clamp nut 11 and valve rod 7；The valve rod
The part of small valve core 7a is served as in 7 lower ends and valve rod shoulder 7b is machined with runner, for linking up valve core cavity and valve inlet
Runner, to reduce out-of-balance force suffered when small valve core 7a is opened.
The specific assembling process of the present invention is as follows：Soft spool 4 is put into the corresponding position in 2 lower end of spool, is put into spool pressure
Lid 1 and being connected through a screw thread is tightened, and 1 lower edge of spool gland is machined with slot 1a, facilitates installation.Successively by gasket 3, sleeve 5, spring
6 and valve rod 7 be placed into the inner cavity of spool 2, general stopper ring 8 is put into the corresponding slot in 9 lower end of gland, will be fixed with later general
The gland 9 of stopper ring 8, which is put into the inner cavity of spool 2 and is connected through a screw thread, to be tightened.Slot 9a is machined at the outer rim of gland 9, it is convenient
Installation.Finally, it in annular groove that balanced seal circle 10 is placed into clamp nut 11 above gland 9 and will tighten, and then complete
The assembling of spool.The structure of the present invention is simple, processing cost is low, installation is easy, antihypertensive effect is apparent, regulating ratio is big, can replace
For existing single-seat adjusting valve spool, to realize big regulating ratio.
Above-described embodiment is only limitted to illustrate design and the technical characteristic of the present invention, and its object is to allow those skilled in the art
Member understands the technical solution and embodiment of invention, can not limit the scope of the invention accordingly.It is every according to the present invention
Equivalent replacement or equivalence changes made by technical solution, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of low leakage pilot-operated type single-seat adjusting valve spool, which is characterized in that the regulation valve core includes spool gland
(1), spool (2), gasket (3), soft spool (4), sleeve (5), spring (6), valve rod (7), general stopper ring (8), gland (9), balance
Sealing ring (10) and clamp nut (11) are to use spiral shell between spool gland (1) and spool (2), gland (9) and spool (2)
Line connects；Gasket (3) is installed between sleeve (5) and spool (2)；General stopper ring (8) is installed between gland (9) and sleeve (5)
Sealing；During the work time, the valve rod (7) moves up and down along its center line, in balanced seal circle (10) and valve rod shoulder
Under the guiding role of (7b), the action of valve rod (7) is made to keep vertical, steady.
2. low leakage pilot-operated type single-seat adjusting valve spool according to claim 1, which is characterized in that the upper valve core gland
(1) it is machined with slot (1a) and slot (9a) respectively with gland (9).
3. low leakage pilot-operated type single-seat adjusting valve spool according to claim 1, which is characterized in that the sleeve (5) is
Spile structure.
4. low leakage pilot-operated type single-seat adjusting valve spool according to claim 1, which is characterized in that the gland (9), pressure
The tight gap for having 0.2mm between nut (11) and valve rod (7).
5. low leakage pilot-operated type single-seat adjusting valve spool according to claim 1, which is characterized in that under the valve rod (7)
The part of small valve core (7a) is served as at end and valve rod shoulder (7b) is machined with runner, for linking up valve core cavity and valve inlet
Runner, to reduce out-of-balance force suffered when small valve core (7a) is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177143.8A CN108317298A (en) | 2018-03-04 | 2018-03-04 | Low leakage pilot-operated type single-seat adjusting valve spool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177143.8A CN108317298A (en) | 2018-03-04 | 2018-03-04 | Low leakage pilot-operated type single-seat adjusting valve spool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108317298A true CN108317298A (en) | 2018-07-24 |
Family
ID=62901099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810177143.8A Pending CN108317298A (en) | 2018-03-04 | 2018-03-04 | Low leakage pilot-operated type single-seat adjusting valve spool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317298A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594426A (en) * | 2019-08-07 | 2019-12-20 | 浙江大学 | Piston type valve core structure with rigid ring surface combined with flexible base surface and method thereof |
| CN116006767A (en) * | 2022-12-02 | 2023-04-25 | 中广核工程有限公司 | Novel multistage adjustable pressure reducing regulating valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625033A (en) * | 2009-08-05 | 2010-01-13 | 无锡卓尔阀业有限公司 | Water supply control valve for high-pressure boiler |
| US20100148108A1 (en) * | 2008-12-17 | 2010-06-17 | Glaun J Asher | Fluid Control Valve |
| CN203189744U (en) * | 2013-04-18 | 2013-09-11 | 宣达实业集团浙江特种泵阀有限公司 | Regulating valve |
| CN203743551U (en) * | 2014-02-25 | 2014-07-30 | 杭州杭氧工装泵阀有限公司 | Multistage pressure reducing valve |
| CN204083312U (en) * | 2014-09-11 | 2015-01-07 | 兖矿新疆煤化工有限公司 | A kind of temperature-decreased pressure reducer improveing spool |
| CN104295752A (en) * | 2014-10-09 | 2015-01-21 | 兰州理工大学 | Multistage step-down sleeve adjusting valve |
| CN104358885A (en) * | 2014-11-04 | 2015-02-18 | 无锡市亚迪流体控制技术有限公司 | High-pressure difference and high-flow rate adjustable ratio control valve |
| CN204493769U (en) * | 2015-02-13 | 2015-07-22 | 浙江贝托阀门有限公司 | A kind of pilot-operated type adjusting valve |
| CN208859063U (en) * | 2018-03-04 | 2019-05-14 | 江苏江进泵业有限公司 | Low leakage pilot-operated type single-seat adjusting valve spool |
-
2018
- 2018-03-04 CN CN201810177143.8A patent/CN108317298A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100148108A1 (en) * | 2008-12-17 | 2010-06-17 | Glaun J Asher | Fluid Control Valve |
| CN101625033A (en) * | 2009-08-05 | 2010-01-13 | 无锡卓尔阀业有限公司 | Water supply control valve for high-pressure boiler |
| CN203189744U (en) * | 2013-04-18 | 2013-09-11 | 宣达实业集团浙江特种泵阀有限公司 | Regulating valve |
| CN203743551U (en) * | 2014-02-25 | 2014-07-30 | 杭州杭氧工装泵阀有限公司 | Multistage pressure reducing valve |
| CN204083312U (en) * | 2014-09-11 | 2015-01-07 | 兖矿新疆煤化工有限公司 | A kind of temperature-decreased pressure reducer improveing spool |
| CN104295752A (en) * | 2014-10-09 | 2015-01-21 | 兰州理工大学 | Multistage step-down sleeve adjusting valve |
| CN104358885A (en) * | 2014-11-04 | 2015-02-18 | 无锡市亚迪流体控制技术有限公司 | High-pressure difference and high-flow rate adjustable ratio control valve |
| CN204493769U (en) * | 2015-02-13 | 2015-07-22 | 浙江贝托阀门有限公司 | A kind of pilot-operated type adjusting valve |
| CN208859063U (en) * | 2018-03-04 | 2019-05-14 | 江苏江进泵业有限公司 | Low leakage pilot-operated type single-seat adjusting valve spool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594426A (en) * | 2019-08-07 | 2019-12-20 | 浙江大学 | Piston type valve core structure with rigid ring surface combined with flexible base surface and method thereof |
| CN110594426B (en) * | 2019-08-07 | 2020-08-11 | 浙江大学 | Piston type valve core structure with rigid ring surface combined with flexible base surface and method thereof |
| CN116006767A (en) * | 2022-12-02 | 2023-04-25 | 中广核工程有限公司 | Novel multistage adjustable pressure reducing regulating valve |
| CN116006767B (en) * | 2022-12-02 | 2024-01-30 | 中广核工程有限公司 | Multistage adjustable pressure reducing regulating valve |
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