CN108980365A - A kind of valve internal component structure of high differential pressure control valve - Google Patents
A kind of valve internal component structure of high differential pressure control valve Download PDFInfo
- Publication number
- CN108980365A CN108980365A CN201811052135.7A CN201811052135A CN108980365A CN 108980365 A CN108980365 A CN 108980365A CN 201811052135 A CN201811052135 A CN 201811052135A CN 108980365 A CN108980365 A CN 108980365A
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- Prior art keywords
- valve
- spool
- valve seat
- regulating tank
- flow regulating
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- 230000006837 decompression Effects 0.000 claims abstract description 41
- 230000001105 regulatory effect Effects 0.000 claims description 52
- 230000013011 mating Effects 0.000 claims description 14
- 239000002344 surface layer Substances 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000013036 cure process Methods 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000003276 anti-hypertensive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
-
- 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
-
- 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
- F16K1/44—Details of seats or valve members of double-seat valves
- F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
-
- 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
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of valve internal component structures of high differential pressure control valve, including valve rod, spool, valve cage, valve seat, the spool is fixedly connected on the lower end of valve rod, the valve cage, arranged superposed above and below valve seat, on valve cage occupies, under valve seat occupies, it is in tube-in-tube structure relative to spool, the spool is located in the tube-in-tube structure, there are media to be depressured cushion space between valve cage and spool, also there are media to be depressured cushion space between valve seat and spool, form multilevel decompression structure, the valve seat at least two, upper and lower arranged superposed, there are a media to be depressured cushion space between each valve seat and spool.In the case that the present invention has well solved High Pressure Difference operating condition, multilevel decompression in valve, Anti-erosion problem are well solved.
Description
Technical field
The present invention relates to high differential pressure control valve, the valve internal component structure of specifically a kind of high differential pressure control valve.
Background technique
High differential pressure control valve is used primarily on the straight stroke valve of high temperature and pressure, is play a part of to adjust, is depressured.Valve in it
Inner assembly structure directly decides the antihypertensive effect of high differential pressure control valve, currently, the most common valve internal component of high differential pressure control valve
Decompression is mainly cooperated together with spool by valve cage.But the decompression series of this degree, for small in high differential pressure control valve
Under the operating condition that flow is adjusted, when spool is in the moment of opening and closing, flow area is especially small, velocity of medium is high and pressure still sharply under
Drop, valve sealing face is washed away vulnerable to high-speed Medium fluid, and generates erosion phenomenon, leads to sealing surface blow loss, serious to go back
The problems such as will cause regulating valve to fit badly, generating interior leakage, also will cause erosive wear and big noise.
Summary of the invention
It is an object of the invention to: in view of the above shortcomings of the prior art, one kind is provided in the case where High Pressure Difference operating condition,
It realizes multilevel decompression, Anti-erosion problem, meets the valve internal component structure of the high differential pressure control valve of the small flow regulatory demand of control valve.
The technical solution adopted by the present invention is that a kind of valve internal component structure of high differential pressure control valve, including valve rod, spool,
Valve cage, valve seat, the spool are fixedly connected on the lower end of valve rod, the valve cage, valve seat arranged superposed up and down, on valve cage occupies, valve
It is in tube-in-tube structure relative to spool under seat occupies, the spool is located in the tube-in-tube structure, and there are media between valve cage and spool
It is depressured cushion space, also there are media to be depressured cushion space between valve seat and spool, forms multilevel decompression structure, the valve seat
At least two, upper and lower arranged superposed, there are a media to be depressured cushion space between each valve seat and spool.
It is located above the medium decompression cushion space between the valve seat and spool described in this between each valve seat and spool
Mating surface is equipped with several circumferentially uniformly distributed longitudinal flow regulating tanks, and the upper end of the longitudinal direction flow regulating tank is port structure, under
End be blind seal structure, and the longitudinal direction flow regulating tank cooperate together with the spool that can be moved up control, adjusting and this
Size of upper and lower adjacent this of longitudinal flow regulating tank to the flow aperture between medium decompression cushion space；Work as institute
When stating mating surface unlatching of the spool with the lowermost final stage seat bottom portion, the longitudinal direction flow regulating tank conducting；When the spool
During gradually moving up relative to the tube-in-tube structure, upper and lower adjacent this of the longitudinal direction flow regulating tank is depressured medium
Flow aperture between cushion space is gradually increased.
Further, the cross sectional shape of longitudinal flow regulating tank is semicircle, and the depth of longitudinal flow regulating tank is under
And upper dull intensification, the width of longitudinal flow regulating tank from bottom to top widen by dullness.
Further, the cross sectional shape of longitudinal flow regulating tank is rectangle, the depth of longitudinal flow regulating tank by lower and
Upper dull intensification, the width of longitudinal flow regulating tank from bottom to top remain unchanged.
Further, have antifriction alloy surface layer, the antifriction alloy surface layer in the mating surface between each valve seat and spool
It is the surface layer through QPQ cure process.
The valve seat of about at least two arranged superposed uses ladder seam allowance overlapping mode, overlap joint between adjacent valve seat
Portion is equipped with lock-screw.
The valve seat of about at least two arranged superposed uses internal and external screw thread screw connection manner between adjacent valve seat, is spirally connected
Portion is equipped with lock-screw.
One section of interior hole section for playing spool guiding role, and the bottom of the valve cage and the top are provided in the valve cage
The mode being gap-matched between the top of chopped-off head valve seat connects.
The bottom of valve seat described in the lowermost final stage is connected with decompression cage.
The beneficial effects of the present invention are:
In the case that the present invention has well solved High Pressure Difference operating condition, multilevel decompression in valve, Anti-erosion problem are well solved,
Meet the small flow regulatory demand of control valve.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the decomposition diagram of valve internal component.
Fig. 3 is the structural schematic diagram of valve internal component.
Fig. 4 is the top view of valve seat.
Code name meaning in figure: 1-valve rod；2-spools；3-valve cages；4-valve seats；5-tube-in-tube structures；A, B, C, D-Jie
Matter is depressured cushion space；6-longitudinal flow regulating tanks；7-flexible seal rings；8-interior hole sections；9-decompression cages；10-balances
Hole；11,12-runner hole.
Specific embodiment
Referring to FIG. 1 to FIG. 4: the present invention is a kind of valve internal component structure of high differential pressure control valve, and the valve is in High Pressure Difference
In the case where operating condition, multilevel decompression in valve, Anti-erosion problem are well solved.
The valve internal component structure of above-mentioned high differential pressure control valve includes valve rod 1, spool 2, valve cage 3, valve seat 4, and the spool 2 is solid
Surely it is connected to the lower end of valve rod 1, the internal screw thread on the top for the axially extending bore which opens up with 2 center of spool is spirally connected, and leads to
Lock-screw is crossed to fix, lock.The valve cage 3, about 4 arranged superposed of valve seat, valve cage 3 occupy on, valve seat 4 occupy under, relative to valve
Core 2 is in tube-in-tube structure 5, and the spool 2 is located in the tube-in-tube structure 5, and specifically, the valve seat 4 is equipped with from valve seat 4
The entirety of the valve cage 3 that top upwardly extends, the valve seat 4 and the valve cage 3 surrounds the tube-in-tube structure 5 outside the spool 2.Institute
It states and has been arranged radially multiple runner holes 11 on the middle and lower sections wall of valve cage 3.There are medium decompressions to buffer between valve cage 3 and spool 2
Space, also there are media to be depressured cushion space between valve seat 4 and spool 2, forms multilevel decompression structure.
Above-mentioned valve seat 4 at least two, upper and lower arranged superposed, there are a media to drop between each valve seat 4 and spool 2
Press cushion space.The valve seat 4 of about at least two arranged superposed uses ladder seam allowance overlapping mode between adjacent valve seat 4,
Clinch is equipped with lock-screw.The either valve seat 4 of about at least two arranged superposed, use between adjacent valve seat 4 in,
External thread bolt connection mode, spiro union portion are equipped with lock-screw.In present embodiment, the valve seat 4 is three, two-by-two the valve seat 4
Between be spirally connected by internal and external screw thread.
Shown in Figure 1, the spool lower part and the lower part of the third valve seat are in close state, each valve seat 4 with
If the mating surface above the medium decompression cushion space being located between the valve seat 4 and spool 2 described in this between spool 2 is equipped with
Dry circumferentially uniformly distributed longitudinal flow regulating tank 6, the upper end of the longitudinal direction flow regulating tank 6 are port structure, and lower end is blind seal structure,
And the longitudinal direction flow regulating tank 6 cooperates control together with the spool 2 that can be moved up, adjusts and longitudinal stream described in this
Measuring size of upper and lower adjacent this of regulating tank 6 to the flow aperture between medium decompression cushion space, (spool 2 moves up, valve seat 4
On longitudinal flow regulating tank 6 be connected aperture it is bigger, conversely, aperture is smaller).When the spool 2 and the lowermost final stage valve seat 4
When the mating surface of (present embodiment, the lowermost final stage valve seat 4 refer to third valve seat 4 from top to bottom, similarly hereinafter) bottom is opened,
The longitudinal direction flow regulating tank 6 is connected, upper and lower adjacent this of the longitudinal direction flow regulating tank 6 to medium be depressured cushion space with
The conducting of longitudinal flow regulating tank 6 and be connected to；During the spool 2 is gradually moved up relative to the tube-in-tube structure 5,
Described upper and lower this adjacent flow aperture being depressured between cushion space to medium of longitudinal direction flow regulating tank 6 is gradually increased.Its
In, inclination (length direction that inclined direction is longitudinal flow regulating tank 6) angle of the bottom of the longitudinal direction flow regulating tank 6 is
10 °~45 ° (for example, 10 °, 15 °, 30 °, 40 ° or 45 °, it is preferred that 30 °), the bottom of longitudinal flow regulating tank 6 is inclined this
Under rake angle, decompression, erosion resistance is not only made to be improved, but also under low flow rate condition, be conducive to be precisely controlled, adjust
The uninterrupted of medium.
The cross sectional shape of above-mentioned longitudinal direction flow regulating tank 6 is semicircle, and the depth of longitudinal flow regulating tank 6 is from bottom to top single
It adjusts and deepens, the width of longitudinal flow regulating tank 6 from bottom to top widen by dullness.This design structure can not only be controlled preferably
(conventional high-tension difference control valve, the linear increase and decrease of discharge characteristic after valve opening and closing, flow are adjusted the increase and decrease of discharge characteristic exponentially grade
Ability is poor, and especially small flow adjusts undesirable), and can make to be depressured the arrival of pressure difference highest 30MPa(or valve leak etc.
Grade reaches V grades of requirements), it realizes flow and adjusts process from quantitative change to qualitative change, and under the valve leak grade of this state
(V grades) will not still destroy the sealing surface (mating surface) between valve seat 4 and spool 2, realize excellent sealing.In this design structure
Under, additionally it is possible to realize valve steadily fast opening and closing, accurately small flow is adjusted.Conventional high-tension difference control valve, valve are captured
Leakage class, which reaches IV grades of requirements, will destroy the sealing surface (mating surface) between valve seat 4 and spool 2, reduce valve internal component
Service life, and then influence the service life of entire high differential pressure control valve.
In mating surface between each valve seat 4 and spool 2 have antifriction alloy surface layer, the antifriction alloy surface layer be through
(QPQ cure process refers to is put into ferrous metal part in two kinds of different salt baths of property to QPQ cure process, passes through a variety of members
Element penetrates into metal surface and forms compisite seeping layer, to achieve the purpose that keep piece surface modified.It reaches not by quenching
The effect of surface hardening, therefore it is referred to as QPQ both at home and abroad.Newest improved process in light nitrogenizing.The technique compares QPQ advantage
It is completely indeformable, hardness is higher, and depth is deeper, high-efficient, does not need to polish, and can nitrogenize precision height, nonstandard and large-scale by zero
Component, and there is good wearability, fatigue performance, good corrosion resistance, product treatment to deform small, Ke Yidai later
For multiple tracks heat treatment procedure and anti-corrosion treatment process, the time cycle is short, nuisanceless horizontal high and non-environmental-pollution) surface layer.
Or the antifriction alloy surface layer can also be weld-deposited cladding.Also or, which is nitriding or carburized layer.
The mating surface of the valve cage 3 and 2 upper section of spool is equipped with flexible seal ring 7.Preferably, the flexible seal ring 7 is
Rubber seal or teflin ring, to enhance sealing effect.
For the spool 2 with 1 lower end of valve rod using being threadedly coupled, interconnecting piece is equipped with lock-screw.
Be provided in the valve cage 3 one section be 2 guiding role of spool interior hole section 8, and the bottom of the valve cage 3 with most
In the chopped-off head valve seat 4(present embodiment of upper end, the top chopped-off head valve seat 4 refers to first valve seat 4 from top to bottom) top between
The mode being gap-matched connects.Not only spool 2 can in the interior hole section 8 of valve cage 3 by it is accurate, be smoothly directing to, but also
The mode being gap-matched between the bottom of the valve cage 3 and the top of the top chopped-off head valve seat 4 allows spool 2 and the lowermost
The bottom of final stage valve seat 4 can feel relieved like clockwork, be aligned, and make spool 2 to the spool 2 and the lowermost final stage valve seat 4
The mating surface (sealing surface) of bottom has definitely sealing, compensation ability.
The bottom of the lowermost final stage valve seat 4 is connected with decompression cage 9, offers runner hole 12 on the decompression cage.Realize drop
The function of pressure, noise reduction, Anti-erosion.
Balance hole 10 is offered on above-mentioned spool 2, advantageously reduces the torque of regulating valve unlatching.
The course of work:
High differential pressure control valve is mounted on the straight stroke valve of high temperature and pressure, by extraneous pneumatic and/or electric operator with
Connected at the top of valve rod 1, can 8 upward and downward of hole section along the guiding in valve cage 3 of driving stem 1 move, with the lower part of control valve seat 4
The opened/closed of sealing surface (mating surface) between 2 lower part of spool.When unlatching, spool 2 is moved up with valve rod 1, and medium decompression is slow
It rushes space A and medium decompression cushion space B, medium decompression cushion space B and medium decompression cushion space C and medium decompression is slow
Rush space C and medium decompression cushion space D between by respectively between it is corresponding longitudinal direction flow regulating tank 6 unlatching be connected to,
And with the continuous increase of longitudinal 6 aperture of flow regulating tank, adjacent medium is depressured the flow aperture of cushion space two-by-two
Increase.Medium flow field is through path: flowing into medium by runner hole 11 and is depressured cushion space A, realizes first time decompression processing, be then situated between
Matter, which from medium is depressured cushion space A and flows into medium after corresponding longitudinal flow regulating tank 6, is depressured cushion space B, realizes the
Secondary decompression processing, secondly, medium flows into medium drop by corresponding longitudinal flow regulating tank 6 from medium decompression cushion space B
Cushion space C is pressed, realizes third time decompression buffered, thirdly, medium is from medium decompression cushion space C by corresponding vertical
Medium is flowed into flow regulating tank 6 and is depressured cushion space D, realizes the 4th decompression buffered, finally, medium is depressured from medium
Cushion space D is flowed out by the runner hole 12 of decompression cage 9, realizes the 5th decompression, and noise reduction, antiscour.Meanwhile with each
The continuous increase of 6 aperture of longitudinal flow regulating tank of position, the flow aperture of adjacent medium decompression cushion space also increases two-by-two
Greatly, increase mode here is exponential increase, rapidly opened and closed to realize；When closing, spool 2 is moved down with valve rod 1, medium drop
Cushion space A and medium decompression cushion space B, medium decompression cushion space B and medium decompression cushion space C and medium is pressed to drop
The flow exponentially grade between cushion space C and medium decompression cushion space D is pressed to reduce, until closing.
Embodiment 2
The other structures of the present embodiment 2 are same as Example 1, the difference is that: the section shape of the longitudinal direction flow regulating tank
Shape is rectangle, and the depth of longitudinal flow regulating tank is from bottom to top dull to deepen, and the width of longitudinal flow regulating tank is from bottom to top protected
It holds constant.Its simple processing.
Embodiment 3
The other structures of the present embodiment 3 are same as Example 1, the difference is that: at the notch of the longitudinal direction flow regulating tank
It is arranged to the arc shape chamfering turned up.Spool increases flow area in the moment of opening and closing, reduces the washing away of high-velocity fluid, erosion
Phenomenon realizes the smooth transition of spool opening and closing.
The technical solution of the above various embodiments is only to illustrate the present invention, rather than its limitations.Although referring to aforementioned each reality
Applying the technical solution of example, invention is explained in detail, those skilled in the art should understand that: it still may be used
To modify to preceding solution or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of valve internal component structure of high differential pressure control valve, including valve rod, spool, valve cage, valve seat, the spool are fixedly connected
In the lower end of valve rod, it is characterised in that: the valve cage, valve seat up and down arranged superposed, valve cage occupy on, valve seat occupy under, relative to valve
Core is in tube-in-tube structure, and the spool is located in the tube-in-tube structure, and there are media to be depressured cushion space between valve cage and spool,
Also there are media to be depressured cushion space between valve seat and spool, forms multilevel decompression structure, and the valve seat at least two weighs up and down
Laying up is set, and there are a media to be depressured cushion space between each valve seat and spool.
2. the valve internal component structure of high differential pressure control valve according to claim 1, it is characterised in that: each valve seat and spool
Between be located at this described in valve seat and spool between medium decompression cushion space above mating surface be equipped with several circumferential directions
Uniformly distributed longitudinal flow regulating tank, the upper end of the longitudinal direction flow regulating tank are port structure, and lower end is blind seal structure, and this is vertical
Cooperate control together with the spool that can be moved up to flow regulating tank, adjust and longitudinal flow regulating tank described in this
Size of this adjacent to the flow aperture between medium decompression cushion space above and below；When the spool and the lowermost final stage
When the mating surface of seat bottom portion is opened, the longitudinal direction flow regulating tank conducting；When the spool relative to the tube-in-tube structure by
During gradually moving up, described upper and lower this adjacent flow being depressured between cushion space to medium of longitudinal direction flow regulating tank is opened
Degree is gradually increased.
3. the valve internal component structure of high differential pressure control valve according to claim 2, it is characterised in that: the longitudinal direction flow is adjusted
The cross sectional shape of slot is semicircle, and the depth of longitudinal flow regulating tank is from bottom to top dull to deepen, the width of longitudinal flow regulating tank
Degree from bottom to top widen by dullness.
4. the valve internal component structure of high differential pressure control valve according to claim 2, it is characterised in that: the longitudinal direction flow is adjusted
The cross sectional shape of slot is rectangle, and the depth of longitudinal flow regulating tank is from bottom to top dull to deepen, the width of longitudinal flow regulating tank
From bottom to top remain unchanged.
5. the valve internal component structure of high differential pressure control valve according to claim 2, it is characterised in that: each valve seat and spool
Between mating surface on have antifriction alloy surface layer, which is the surface layer through QPQ cure process.
6. the valve internal component structure of high differential pressure control valve according to claim 1, it is characterised in that: described about at least two
The valve seat of arranged superposed, ladder seam allowance overlapping mode is used between adjacent valve seat, and clinch is equipped with lock-screw.
7. the valve internal component structure of high differential pressure control valve according to claim 1, it is characterised in that: described about at least two
The valve seat of arranged superposed, internal and external screw thread screw connection manner is used between adjacent valve seat, and spiro union portion is equipped with lock-screw.
8. the valve internal component structure of high differential pressure control valve according to claim 1, it is characterised in that: be provided in the valve cage
One section of interior hole section for playing spool guiding role, and between being used between the bottom of the valve cage and the top of the top chopped-off head valve seat
The mode of gap cooperation connects.
9. the valve internal component structure of high differential pressure control valve according to claim 1, it is characterised in that: described in the lowermost final stage
The bottom of valve seat is connected with decompression cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052135.7A CN108980365B (en) | 2018-09-10 | Valve inner assembly structure of high pressure difference control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052135.7A CN108980365B (en) | 2018-09-10 | Valve inner assembly structure of high pressure difference control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108980365A true CN108980365A (en) | 2018-12-11 |
| CN108980365B CN108980365B (en) | 2024-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059304A (en) * | 2020-01-09 | 2020-04-24 | 吴忠仪表有限责任公司 | Multi-channel regulating valve |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078017A (en) * | 1991-11-19 | 1993-11-03 | Gec阿尔斯托姆有限公司 | The valve that has the flexuose valve seat |
| US20030052198A1 (en) * | 2001-07-03 | 2003-03-20 | Common Rail Technologies Ag | Fuel-injection valve for internal combustion engine |
| JP2006266667A (en) * | 2005-02-28 | 2006-10-05 | Daikin Ind Ltd | Expansion valve and freezing apparatus |
| US20080265195A1 (en) * | 2007-04-24 | 2008-10-30 | Carl Freudenberg Kg | Flow connector for a valve |
| CN102620051A (en) * | 2011-01-31 | 2012-08-01 | 株式会社鹭宫制作所 | Throttle valve apparatus |
| CN202612672U (en) * | 2012-05-22 | 2012-12-19 | 浙江富鼎自控阀门有限公司 | Granule-free multi-stage cage type regulating valve |
| CN203131204U (en) * | 2012-12-31 | 2013-08-14 | 雷蒙德（北京）阀门制造有限公司 | Multi-stage depressurization and noise reduction control 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 |
| CN104595496A (en) * | 2013-10-22 | 2015-05-06 | 费希尔控制国际公司 | Control valve trim assembly having a cage with diamond-shaped openings |
| CN104633134A (en) * | 2015-02-10 | 2015-05-20 | 无锡智能自控工程股份有限公司 | Hydrocracking heat highly-distributing high-pressure regulating angle valve |
| CN105626957A (en) * | 2016-03-25 | 2016-06-01 | 吴忠仪表有限责任公司 | Cavitation-resisting and pressure-lowering lamination valve cage |
| US20160223099A1 (en) * | 2015-02-03 | 2016-08-04 | Control Components, Inc. | Axial Resistance Valve Trim Design |
| CN208871040U (en) * | 2018-09-10 | 2019-05-17 | 四川滨大阀门有限责任公司 | A kind of valve internal component structure of high differential pressure control valve |
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078017A (en) * | 1991-11-19 | 1993-11-03 | Gec阿尔斯托姆有限公司 | The valve that has the flexuose valve seat |
| US20030052198A1 (en) * | 2001-07-03 | 2003-03-20 | Common Rail Technologies Ag | Fuel-injection valve for internal combustion engine |
| JP2006266667A (en) * | 2005-02-28 | 2006-10-05 | Daikin Ind Ltd | Expansion valve and freezing apparatus |
| US20080265195A1 (en) * | 2007-04-24 | 2008-10-30 | Carl Freudenberg Kg | Flow connector for a valve |
| CN102620051A (en) * | 2011-01-31 | 2012-08-01 | 株式会社鹭宫制作所 | Throttle valve apparatus |
| CN202612672U (en) * | 2012-05-22 | 2012-12-19 | 浙江富鼎自控阀门有限公司 | Granule-free multi-stage cage type regulating valve |
| CN203131204U (en) * | 2012-12-31 | 2013-08-14 | 雷蒙德（北京）阀门制造有限公司 | Multi-stage depressurization and noise reduction control valve |
| CN104595496A (en) * | 2013-10-22 | 2015-05-06 | 费希尔控制国际公司 | Control valve trim assembly having a cage with diamond-shaped openings |
| 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 |
| US20160223099A1 (en) * | 2015-02-03 | 2016-08-04 | Control Components, Inc. | Axial Resistance Valve Trim Design |
| CN104633134A (en) * | 2015-02-10 | 2015-05-20 | 无锡智能自控工程股份有限公司 | Hydrocracking heat highly-distributing high-pressure regulating angle valve |
| CN105626957A (en) * | 2016-03-25 | 2016-06-01 | 吴忠仪表有限责任公司 | Cavitation-resisting and pressure-lowering lamination valve cage |
| CN208871040U (en) * | 2018-09-10 | 2019-05-17 | 四川滨大阀门有限责任公司 | A kind of valve internal component structure of high differential pressure control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111059304A (en) * | 2020-01-09 | 2020-04-24 | 吴忠仪表有限责任公司 | Multi-channel regulating valve |
| CN111059304B (en) * | 2020-01-09 | 2022-01-21 | 吴忠仪表有限责任公司 | Multi-channel regulating valve |
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