CN108150656A - Type pilot string data adjusts stop valve - Google Patents
Type pilot string data adjusts stop valve Download PDFInfo
- Publication number
- CN108150656A CN108150656A CN201810144392.7A CN201810144392A CN108150656A CN 108150656 A CN108150656 A CN 108150656A CN 201810144392 A CN201810144392 A CN 201810144392A CN 108150656 A CN108150656 A CN 108150656A
- Authority
- CN
- China
- Prior art keywords
- valve
- main valve
- string data
- valve plug
- plug
- 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
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
- 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
-
- 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
- F16K1/42—Valve seats
-
- 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
-
- 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
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
-
- 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)
- Details Of Valves (AREA)
Abstract
The invention belongs to control valve for fluids technical fields, it is related to a kind of suitable for high temperature and high pressure steam operating mode, steam is adjusted the valve of cut-out, specifically a kind of type pilot string data adjusts stop valve, including upper cover and valve body, valve body head is fastenedly connected with upper cover, body cavity setting main valve plug and valve seat；The valve body head inner cavity is equipped with guide sleeve, and guide ring and support ring are equipped between guide sleeve and main valve plug；The main valve plug is equipped with balance hole, and main valve plug lower end contacts with valve base sealing, and main valve plug is connected sealing by thrust ring with pilot valve component, equipped with resetting spring and spring base between main valve plug and pilot valve component.The stop valve has many advantages, such as that good sealing performance, regulation performance and dynamic stability are good, is not easy bite, abrasion-resistance is good, service life is long, low noise, and excellent comprehensive performance ensures that it can successfully manage high temperature（≥290℃）, High Pressure Difference（≥3MPa）Steam is adjusted, cut-out operating mode.
Description
Technical field
The invention belongs to control valve for fluids technical field, be related to it is a kind of be suitable for high temperature and high pressure steam operating mode, to steam into
Row adjusts the valve of cut-out, and specifically a kind of type pilot string data adjusts stop valve.
Background technology
Coal chemical industry is by chemical process mode, converts coal into the products such as gas, liquid, solid fuel and chemicals
Process mainly includes coal gasification, liquefaction, destructive distillation and tar production and carbide acetylene chemical industry etc..With New Coal Chemical（Such as
Coal liquifaction, coal gas, coal-to-olefin, coal-ethylene glycol etc.）The expansion of device capbility, mating air separation unit are more in quantity
And the trend of enlargement.A usual power steam manifold is needed while steam supply is to a few set air separation units.Due to the increasing of air separation unit
Add, the superpressure of steam pipe network can have an important influence on steady, the safe operation of other air separation units；And steam adjusts stop valve
As the flow control unit of steam pipe network key, major function is to adjust ductwork pressure and blowdown pressure letdown, so importance
It is self-evident.Traditional steam adjust stop valve there are leakproofness is bad, dynamic stability is poor, the easy bite of worst hot case, resistance to punching
The shortcomings of corrosion is poor, service life is short, noise is big can not meet harsh duty requirements.
Invention content
The present invention adjusts stop valve in view of the above-mentioned problems, providing a kind of type pilot string data, which has sealing performance
Good, regulation performance and dynamic stability are good, are not easy bite, the advantages that abrasion-resistance is good, service life is long, low noise, excellent
Comprehensive performance ensures that it can successfully manage high temperature（≥290℃）, High Pressure Difference（≥3MPa）Steam is adjusted, cut-out operating mode.
Technical solution according to the invention：A kind of type pilot string data adjusts stop valve, including upper cover and valve body, valve body head
It is fastenedly connected with upper cover, body cavity setting main valve plug and valve seat；The valve body head inner cavity is equipped with guide sleeve, guide sleeve and master
Guide ring and support ring are equipped between spool；The main valve plug is equipped with balance hole, and main valve plug lower end is contacted with valve base sealing, main
Spool is connected sealing by thrust ring with pilot valve component, and resetting spring and bullet are equipped between main valve plug and pilot valve component
Spring abutment, main valve plug have been orderly arranged outside each first throttle set, the second throat bushing, have passed through between first throttle set and the second throat bushing
Stop pin prevents from mutually rotating；For the first throttle set positioned at the inside of the second throat bushing, it is more that first throttle puts on radially setting
First waist type groove of a circumference uniform distribution radially sets the second waist type groove of multiple circumference uniform distributions on the second throat bushing, wherein first
Waist type groove is corresponding one by one with the second waist type groove and forms runner；The first throttle is put on is equipped with multigroup circumference uniform distribution in an axial direction
Flow-rate adjustment window, main valve plug and first throttle put on the flow-rate adjustment window-shaped of setting into string data multilevel decompression structure.
As a further improvement on the present invention, the guide ring is located at the outside of support ring, and the opening of guide ring is Z-shaped
Type.
As a further improvement on the present invention, the valve seat is equipped with uniformly distributed noise reduction hole.
As a further improvement on the present invention, the thrust ring is equipped with throttle orifice, and spring base is equipped with fan groove, throttling
Hole forms circulation passage with fan groove, and the outer circle of spring base and the endoporus of main valve plug are clearance fit.
As a further improvement on the present invention, the upper cover is fixed first throttle set and the second throat bushing by guide sleeve
On valve seat.
As a further improvement on the present invention, upper lid gasket, upper cover and pilot valve are equipped between the upper cover and valve body
Filler assembly is equipped between component.
As a further improvement on the present invention, valve seat gasket is equipped between the valve seat and valve body.
As a further improvement on the present invention, small stroke flow dead zone is set between the main valve plug and first throttle set.
As a further improvement on the present invention, at work, valve body media flow direction is high in and low out.
The technical effects of the invention are that：1st, using pilot-operated type valve core structure, medium is flowed to as high in and low out, valve seal
Performance is good, and required executing agency's thrust is small, can meet VI grade of sealing class requirement of ANSI for a long time, valve flow characteristic is approximation
Equal percentage can realize adjusting, can also realize cutting function.
2nd, set guide ring and support ring that can compensate temperature difference gap automatically on main valve plug, valve is not easy bite, in high temperature, height
There is good dynamic stability, suitable for chain quick adjusting, cut-out operating mode under pressure difference steam operating mode.
3rd, valve uses string data multilevel decompression main valve cored structure, and anti-clogging effect is good, and coordinates porous type noise reducing type valve seat,
It is highly resistant to high temperature（≥290℃）, High Pressure Difference（≥3MPa）The erosion of steam medium, and the noise of valve is greatly reduced.
4th, valve is equipped with small stroke flow dead zone function, can slow down destruction of the High Pressure Difference fluid to trim, and can be effective
Valve is avoided because it being caused happening for the higher-order of oscillation occur when small guide vane is run, then extends the service life of trim
And improve the control performance of valve.
Description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is valve seat axonometric drawing.
Fig. 3 is main spool isometric cutaway view.
Fig. 4 covers axonometric drawing for first throttle.
Fig. 5 is the second throat bushing axonometric drawing.
Fig. 6 is spring base axonometric drawing.
Fig. 7 is thrust ring axonometric drawing.
Fig. 8 is support ring axonometric drawing.
Fig. 9 is guide ring axonometric drawing.
Reference sign：1- valve bodies, 2- valve seats, 2a- noise reductions hole, 3- valve seats gasket, 4A- first throttles set, 4A-1-
One waist type groove, 4A-2- flow-rate adjustments window, the second throat bushings of 4B-, the second waists of 4B-1- type groove, 4C- stop pins, 5- main valve plugs,
5a- balance holes, main valve plug top 5-1, main valve plug lower part 5-2,6- resetting spring, 7- spring bases, 7a- fan grooves, 8- thrust rings,
8a- throttle orifices, 9- support rings, 10- guide rings, 11- guide sleeves, the upper lid gaskets of 12-, 13- pilot valves component, 14- upper covers,
The small stroke flow dead zone of 15- filler assemblies, 16-, 17- valve body medias flow direction.
Specific embodiment
The specific embodiment of the present invention is further described below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ 9, the invention mainly comprises upper cover 14 and valve body 1, head is fastenedly connected with upper cover 14 in valve body 1, valve
1 inner cavity of body sets main valve plug 5 and valve seat 2.Main valve plug 5 is multistage string data buck configuration, specifically, including main valve plug top 5-
1 and main valve plug lower part 5-2, main valve plug lower part 5-2 are axially formed multiple pyramidal structures, and pyramidal structure is radially extended and set
It puts.
Main valve plug 5 is equipped with balance hole 5a, and balance hole 5a is set to the lower part of main valve plug top 5-1, and balance hole 5a is along diameter
It is set to perforation, main valve plug top 5-1 inner cavities step surface is equipped with locating shoulder, and 5 lower end of main valve plug is in contact close with valve seat 2
Envelope, main valve plug 5 are connected sealing with pilot valve component 13 by thrust ring 8, are equipped between main valve plug 5 and pilot valve component 13
Resetting spring 6 and spring base 7,6 lower end of resetting spring carry out radial positioning by the locating shoulder of main valve plug top 5-1 inner cavities.
Main valve plug 5 has been orderly arranged outside each first throttle set 4A, the second throat bushing 4B.First throttle covers the throttlings of 4A and second
4 stop pin 4C are equipped between set 4B, prevent from mutually rotating between the two.
As shown in Fig. 1, Fig. 8, Fig. 9, head inner cavity is equipped with guide sleeve 11, the main valve plug 5 and guide sleeve 11 in the valve body 1
Between be equipped with guide ring 10 and support ring 9, the guide ring 10 is located at the outside of support ring 9, and the opening of the guide ring 10 is Z
Font, the guide ring 10 can compensate temperature difference gap automatically with support ring 9, it is ensured that valve is not easy bite, in high temperature（≥290
℃）, High Pressure Difference（≥3MPa）Good dynamic stability is kept under steam operating mode.
As shown in Fig. 2, valve seat 2 is equipped with uniformly distributed noise reduction hole 2a, the noise of valve can be effectively reduced.
As shown in Fig. 3 ~ 5, first throttle set 4A is located at the inside of the second throat bushing 4B, is radially set on first throttle set 4A
Second waist type of multiple circumference uniform distributions is radially set on the first waist type groove 4A-1, the second throat bushing 4B of multiple circumference uniform distributions
Slot 4B-1, wherein the first waist type groove 4A-1 is corresponding one by one with the second waist type groove 4B-1 and forms runner；The first throttle covers 4A
Upper edge is axially arranged with the flow-rate adjustment window 4A-2 of multigroup circumference uniform distribution；The main valve plug 5 covers what is set on 4A with first throttle
Flow-rate adjustment window 4A-2 forms string data multilevel decompression structure, has the function of that anti-media particle blocks, and is highly resistant to high temperature
（≥290℃）, High Pressure Difference（≥3MPa）The erosion of steam medium extends the service life of trim.
As shown in Fig. 6 ~ 7, the thrust ring 8 is equipped with throttle orifice 8a, and the spring base 7 is equipped with fan groove 7a, throttling
Hole 8a and fan groove 7a forms circulation passage；The outer circle of the spring base 7 is clearance fit with the endoporus of main valve plug 5, rises and is oriented to
Effect.
As shown in Figure 1, first throttle set 4A and the second throat bushing 4B is fixed on valve by the upper cover 14 by guide sleeve 11
On seat 2.Upper lid gasket 12 is equipped between the upper cover 14 and valve body 1, filler is equipped between upper cover 14 and pilot valve component 13
Component 15, to prevent medium from leaking outside.Valve seat gasket 3 is equipped between the valve seat 2 and valve body 1, to prevent in medium appearance
Leakage.Small stroke flow dead zone 16 is set between the main valve plug 5 and first throttle set -4A, and small stroke flow dead zone 16 can slow down
Destruction of the High Pressure Difference fluid to trim, and valve can be effectively avoided because it being caused the higher-order of oscillation occur when small guide vane is run
It happens, then extend the service life of trim and improves the control performance of valve.The valve body media flows to 17 as height
Into it is low go out, when pilot valve component 13 is opened, trim is balanced structure, and valve only needs smaller thrust just can open master
Spool 5 realizes flow or pressure adjusting function；When main valve plug 5 and pilot valve component 13 are turned off, trim is non-equilibrium
Type structure, pressure medium are acted on main valve plug 5, can be provided additional axis sealing, be advantageously ensured that valve meets for a long time
VI grade of sealing class requirement of ANSI, realizes cutting function.
The present invention operation principle be：During valve opening, pilot valve component 13 passes through resetting spring 6 and executing agency
Active force is gradually opened in advance, until standard-sized sheet.In the process, the medium between main valve plug 5 and guide sleeve 11 passes through pilot valve
Core assembly 13 discharges rapidly；At this point, trim is in equilibrium state, executing agency only needs smaller thrust that can drive main valve plug
5 further open.Small stroke flow dead zone 16 is equipped between main valve plug 5 and first throttle set 4A, High Pressure Difference fluid can be slowed down
Destruction to trim, and happening for valve small guide vane oscillation can be effectively avoided, then extend the service life of trim
And improve the control performance of valve.When main valve plug 5 is gradually opened, cover 4A and the second throat bushing 4B with first throttle and form string
Formula multilevel decompression structure by the variation of area between main valve plug 5 and flow-rate adjustment window 4A-2, realizes rate-of flow or pressure
Regulatory function, cooperation porous type valve seat 2, is highly resistant to medium erosion, and reduce valve noise.When valve is closed, main valve plug 5
It closes in advance, then pilot valve component 13 progressively closes off；At this point, trim is in nonequilibrium condition, medium passes through main valve plug 5
On balance hole and guide ring 10 and main valve plug 5 between gap enter chamber between guide sleeve 11 and main valve plug 5, medium pressure
Power is acted on main valve plug 5, can provide additional axis sealing, advantageously ensures that valve meets VI grade of sealing of ANSI etc. for a long time
Grade requirement, realizes cutting function.Hardened metal guide ring 10 and support ring are set between guide sleeve 11 and main valve plug 5
9, temperature difference gap can be compensated automatically, it is ensured that valve is in high temperature（≥290℃）, High Pressure Difference（≥3MPa）Have under steam operating mode good
Dynamic stability, be highly suitable for chain quick adjusting, cut-out operating mode.
Claims (9)
1. a kind of type pilot string data adjusts stop valve, including upper cover（14）And valve body（1）, valve body（1）Middle head and upper cover（14）Tightly
It is solidly connected, valve body（1）Inner cavity sets main valve plug（5）And valve seat（2）；The valve body（1）Middle head inner cavity is equipped with guide sleeve（11）, lead
To set（11）With main valve plug（5）Between be equipped with guide ring（10）And support ring（9）；The main valve plug（5）It is equipped with balance hole
（5a）, main valve plug（5）Lower end and valve seat（2）It is in sealing contact, main valve plug（5）Pass through thrust ring（8）With pilot valve component（13）
Be connected sealing, main valve plug（5）With pilot valve component（13）Between be equipped with resetting spring（6）And spring base（7）, main valve plug（5）
It has been orderly arranged outside each first throttle set（4A）, the second throat bushing（4B）, first throttle set（4A）With the second throat bushing（4B）It
Between pass through stop pin（4C）It prevents from mutually rotating；The first throttle set（4A）Positioned at the second throat bushing（4B）Inside, first
Throat bushing（4A）Upper radial direction sets the first waist type groove of multiple circumference uniform distributions（4A-1）, the second throat bushing（4B）Upper radial direction setting is more
Second waist type groove of a circumference uniform distribution（4B-1）, wherein the first waist type groove（4A-1）With the second waist type groove（4B-1）It corresponds to one by one simultaneously
Form runner；The first throttle set（4A）Upper edge is axially arranged with the flow-rate adjustment window of multigroup circumference uniform distribution（4A-2）, main valve
Core（5）With first throttle set（4A）The flow-rate adjustment window of upper setting（4A-2）Form string data multilevel decompression structure.
2. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The guide ring（10）Positioned at support
Ring（9）Outside, guide ring（10）Opening be Z-shaped.
3. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The valve seat（2）It is equipped with uniformly distributed
Noise reduction hole（2a）.
4. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The thrust ring（8）It is equipped with section
Discharge orifice（8a）, spring base（7）It is equipped with fan groove（7a）, throttle orifice（8a）With fan groove（7a）Form circulation passage, spring base
（7）Outer circle and main valve plug（5）Endoporus be clearance fit.
5. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The upper cover（14）Pass through guide sleeve
（11）By first throttle set（4A）With the second throat bushing（4B）It is fixed on valve seat（2）On.
6. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The upper cover（14）With valve body（1）
Between be equipped with upper lid gasket（12）, upper cover（14）With pilot valve component（13）Between be equipped with filler assembly（15）.
7. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The valve seat（2）
With valve body（1）Between be equipped with valve seat gasket（3）.
8. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：The main valve plug（5）With first segment
Stream set（4A）Between small stroke flow dead zone is set（16）.
9. type pilot string data as described in claim 1 adjusts stop valve, it is characterised in that：At work, valve body media flows to
（17）For high in and low out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144392.7A CN108150656A (en) | 2018-02-12 | 2018-02-12 | Type pilot string data adjusts stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144392.7A CN108150656A (en) | 2018-02-12 | 2018-02-12 | Type pilot string data adjusts stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150656A true CN108150656A (en) | 2018-06-12 |
Family
ID=62457306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144392.7A Pending CN108150656A (en) | 2018-02-12 | 2018-02-12 | Type pilot string data adjusts stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150656A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853306A (en) * | 2020-07-24 | 2020-10-30 | 浙江大学 | Valve core assembly capable of changing inherent valve characteristics, regulating valve and flow control method |
| CN112324921A (en) * | 2020-11-18 | 2021-02-05 | 沈弋翔 | Valve device of static flow water faucet |
| CN112797182A (en) * | 2021-01-19 | 2021-05-14 | 宁波佳音机电科技股份有限公司 | Waste water electromagnetic valve |
| CN114151551A (en) * | 2021-12-28 | 2022-03-08 | 江苏智能特种阀门有限公司 | High-pressure-difference multistage pressure-reduction angle-type regulating valve for high-pressure hydrogenation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927336A (en) * | 2012-11-10 | 2013-02-13 | 无锡智能自控工程股份有限公司 | Pilot-operated double-spool split-range adjusting valve |
| EP2690518A2 (en) * | 2012-07-23 | 2014-01-29 | Hans D. Baumann | Variable resistance differential pressure regulator |
| CN203809704U (en) * | 2014-05-05 | 2014-09-03 | 无锡卓尔阀业有限公司 | Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve |
| 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 |
| CN206309972U (en) * | 2016-12-19 | 2017-07-07 | 天津精通控制仪表技术有限公司 | A kind of Cascade Multistage decompression high-differential-pressure regulating valve |
| CN208041147U (en) * | 2018-02-12 | 2018-11-02 | 无锡智能自控工程股份有限公司 | Type pilot string data adjusts stop valve |
-
2018
- 2018-02-12 CN CN201810144392.7A patent/CN108150656A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2690518A2 (en) * | 2012-07-23 | 2014-01-29 | Hans D. Baumann | Variable resistance differential pressure regulator |
| CN102927336A (en) * | 2012-11-10 | 2013-02-13 | 无锡智能自控工程股份有限公司 | Pilot-operated double-spool split-range adjusting valve |
| CN203809704U (en) * | 2014-05-05 | 2014-09-03 | 无锡卓尔阀业有限公司 | Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve |
| 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 |
| CN206309972U (en) * | 2016-12-19 | 2017-07-07 | 天津精通控制仪表技术有限公司 | A kind of Cascade Multistage decompression high-differential-pressure regulating valve |
| CN208041147U (en) * | 2018-02-12 | 2018-11-02 | 无锡智能自控工程股份有限公司 | Type pilot string data adjusts stop valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853306A (en) * | 2020-07-24 | 2020-10-30 | 浙江大学 | Valve core assembly capable of changing inherent valve characteristics, regulating valve and flow control method |
| CN112324921A (en) * | 2020-11-18 | 2021-02-05 | 沈弋翔 | Valve device of static flow water faucet |
| CN112797182A (en) * | 2021-01-19 | 2021-05-14 | 宁波佳音机电科技股份有限公司 | Waste water electromagnetic valve |
| CN114151551A (en) * | 2021-12-28 | 2022-03-08 | 江苏智能特种阀门有限公司 | High-pressure-difference multistage pressure-reduction angle-type regulating valve for high-pressure hydrogenation device |
| CN114151551B (en) * | 2021-12-28 | 2024-05-28 | 江苏智能特种阀门有限公司 | High-pressure difference multi-stage pressure-reducing angle type regulating valve for high-pressure hydrogenation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108150656A (en) | Type pilot string data adjusts stop valve | |
| CN102979923B (en) | Reduced pressure regulating valve special for reflowing of liquid oxygen pump | |
| CN208041147U (en) | Type pilot string data adjusts stop valve | |
| GB2158557A (en) | Low noise valve | |
| CN215293644U (en) | Series multi-stage cage type regulating valve | |
| CN105134984A (en) | Low-flow-rate high-differential-pressure double-helix pressure reduction control valve | |
| CN210890160U (en) | Series connection valve core double sealing surface multistage pressure reduction regulating valve | |
| WO2018169698A1 (en) | Valve with integral balancing passage | |
| CN103527799A (en) | High-pressure adjusting valve | |
| US4812105A (en) | Bell seal and retaining nut for high pressure turbines | |
| CN104633134B (en) | Hydrocracking heat highly-distributing high-pressure regulating angle valve | |
| US4802679A (en) | Bell seal of improved stability for high pressure turbines | |
| CN211501654U (en) | Satisfy governing valve that bubble level let out leakage quantity under hard seal | |
| CN202469108U (en) | Hole plate assembly type micro amount water spray regulating valve | |
| CN110886851A (en) | Satisfy governing valve that bubble level let out leakage quantity under hard seal | |
| CN107558967B (en) | Steady flow regulator for water injection well | |
| CN209818775U (en) | Anti-cavitation valve with sectional type flow characteristic | |
| CN203082219U (en) | Depressurization regulating valve for liquid oxygen pump backflow | |
| CN215059510U (en) | Pressure reduction control valve and water-gas separator | |
| CN112268140B (en) | Cavitation inhibition type hydraulic valve | |
| CN208041146U (en) | Band metal coating type balanced seal annular sleeve valve | |
| CN212745114U (en) | Low-noise-resistant structure regulating valve | |
| CN209839190U (en) | Valve cage composite structure for stepped pressure reduction and regulating valve for installing valve cage composite structure | |
| CN106286873A (en) | A kind of inclined-plane guide-slot type ceramic gate valve | |
| CN203857053U (en) | Pressure reducing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180612 |