CN105042139A - High-pressure-difference adjusting valve - Google Patents
High-pressure-difference adjusting valve Download PDFInfo
- Publication number
- CN105042139A CN105042139A CN201510410580.6A CN201510410580A CN105042139A CN 105042139 A CN105042139 A CN 105042139A CN 201510410580 A CN201510410580 A CN 201510410580A CN 105042139 A CN105042139 A CN 105042139A
- Authority
- CN
- China
- Prior art keywords
- valve
- cage
- differential
- valve body
- pressure regulating
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a high-pressure-difference adjusting valve. The high-pressure-difference adjusting valve comprises a valve body and a valve deck. An inlet is formed in one end of the valve body. An outlet is formed in the other end of the valve body. A core rod assembly, a valve seat, a valve cage and a balance cylinder are arranged between the inlet and the outlet of the valve body. The core rod assembly is located in the valve seat, the valve cage and the balance cylinder. A guide ring is arranged above the valve cage. The core rod assembly comprises a valve rod and a valve element. A seal surface is formed between the valve element and the valve seat. Multiple through holes are formed in the valve cage. An upper cavity is formed between the valve element and the valve deck. A lower cavity is formed below the valve element. Multiple pressure balance holes are formed in the valve element. A filler assembly is arranged between the valve rod and the valve deck. A pressing plate is arranged above the filler assembly. A first spirotallic gasket is arranged among the valve deck, the valve body and the balance cylinder. A second spirotallic gasket is arranged between the valve seat and the valve body, a seal ring is arranged between the guide ring and the balance cylinder, and therefore the loads of an actuator can be reduced.
Description
Technical field
The present invention relates to a kind of modulating valve, particularly relate to a kind of high-differential-pressure regulating valve.
Background technique
In automation control system, modulating valve is as the terminal actuating device in automatic regulating system, according to the command signal of control system, by the actuator supporting with it, spool stroke is regulated, thus reach the object of adjust flux, conventional single-seat adjusting valve is by valve body, valve seat, spool, valve gap, valve rod, filling body, fastening piece and Sealing are formed, when supporting actuator accept control signal carry out upper and lower straight-line displacement action time, spool is positioned at below, modulating valve is closed condition, spool is positioned at top, modulating valve is opening state, conventional balanced cage type single seat balance regulating valve in use, because the pressure reduction of medium is very high, be easy to produce cavitation and cavitation erosion, very large impact is caused on the working life of valve.Meanwhile, the high speed of medium is washed away and also can be produced vibrations and noise greatly to valve.
Therefore, be necessary to provide a kind of high-differential-pressure regulating valve solved the problems of the technologies described above.
Summary of the invention
Technical problem to be solved by this invention is: provide one can solve the unbalanced high-differential-pressure regulating valve of hydrodynamic pressure.
For achieving the above object, the technical solution used in the present invention is: a kind of high-differential-pressure regulating valve, comprise: valve body and the valve gap be arranged at above valve body, described valve body is connected by several first fixed block with between valve gap, one end of described valve body is provided with import, the other end of described valve body is provided with outlet, S type streamline passage is formed between described import and outlet, core bar assembly is provided with between the import of described valve body and outlet, valve seat, valve cage and compensating cylinder, described core bar assembly is positioned at valve seat, in valve cage and compensating cylinder, described valve cage is positioned at the top of valve seat, described compensating cylinder is positioned at the top of valve cage, the top of described valve cage is provided with guide ring, described core bar assembly comprises: valve rod and the spool be connected with valve rod, sealing surface is formed between described spool and valve seat, described valve cage is provided with several through hole, upper chamber is formed between described spool and valve gap, the below of described spool is provided with the lower chambers communicated with valve body import, several pressure compensation opening running through upper chamber and lower chambers is provided with in described spool, filler assembly is provided with between described valve rod and valve gap, the top of described filler assembly is provided with pressing plate, described pressing plate is connected by the second fixed block with between valve gap, the first spirotallic gasket is provided with between described valve gap and valve body and compensating cylinder, the second spirotallic gasket is provided with between described valve seat and valve body, seal ring is provided with between described guide ring and compensating cylinder.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, described first fixed block is stud bolt and hexagon nut.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, described second fixed block is stud bolt and hexagon nut.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, described valve seat with between valve cage for step surface coordinates.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, described valve cage with between compensating cylinder for step surface coordinates.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, the top of described valve rod is provided with hexagon thin nut.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, described filler assembly comprises lower liner, filler and Gland.
Preferably, in above-mentioned a kind of high-differential-pressure regulating valve, the material of described filler is PTFE or graphite.
Beneficial effect of the present invention is: the modulating valve in the present invention is applicable to the occasion of High Pressure Difference, good airproof performance, leakage rate is little, the low pressure of lower chambers is caused upper chamber by the pressure compensation opening on spool by the modulating valve in the present invention, with reduce that pressure medium causes act on poppet shaft to unbalanced force, thus final controlling element load can be reduced.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of mesohigh differential regulating valve of the present invention.
In Fig. 1: 1, valve body, 2, valve gap, the 3, first fixed block, 4 imports, 5, outlet, 6, S type streamline passage, 7, core bar assembly, 8, valve seat, 9, valve cage, 10, compensating cylinder, 11, guide ring, 12, valve rod, 13, spool, 14, through hole, 15, upper chamber, 16, lower chambers, 17, pressure compensation opening, 18, lower liner, 19, filler, 20, Gland, 21, pressing plate, the 22, second fixed block, 23, the first spirotallic gasket, the 24, second spirotallic gasket, 25, seal ring, 26, hexagon thin nut.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.The example of these preferred implementations illustrates in the accompanying drawings.Shown in accompanying drawing and the embodiments of the present invention described with reference to the accompanying drawings be only exemplary, and the present invention is not limited to these mode of executions.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
Shown in ginseng Fig. 1, a kind of high-differential-pressure regulating valve, comprising: valve body 1 and the valve gap 2 be arranged at above valve body 1, described valve body 1 is connected by several first fixed block 3 with between valve gap 2, in the present embodiment, described first fixed block 3 is preferably stud bolt and hexagon nut.One end of described valve body 1 is provided with import 4, the other end of described valve body 1 is provided with outlet 5, S type streamline passage 6 is formed between described import 4 and outlet 5, core bar assembly 7, valve seat 8, valve cage 9 and compensating cylinder 10 is provided with between the import 4 of described valve body 1 and outlet 5, described core bar assembly 7 is positioned at valve seat 8, valve cage 9 and compensating cylinder 10, described valve cage 9 is positioned at the top of valve seat 8, and described compensating cylinder 10 is positioned at the top of valve cage 9, described valve seat 8 with between valve cage 9 for step surface coordinates.Described valve cage 9 with between compensating cylinder 10 for step surface coordinates.The top of described valve cage 9 is provided with guide ring 11, described core bar assembly 7 comprises: valve rod 12 and the spool 13 be connected with valve rod 12, sealing surface is formed between described spool 13 and valve seat 8, described valve cage 9 is provided with several through hole 14, upper chamber 15 is formed between described spool 13 and valve gap 2, the below of described spool 13 is provided with the lower chambers 16 communicated with valve body import 4, several pressure compensation opening 17 running through upper chamber 15 and lower chambers 16 is provided with in described spool 13, during work, upper chamber 15 and lower chambers 16 are in pressure balance, actuator only need export less power just can make spool 13 open and close, significantly reduce the load of final controlling element.Be provided with filler assembly between described valve rod 12 and valve gap 2, described filler assembly comprises lower liner 18, filler 19 and Gland 20, and wherein lower liner 18 is positioned at bottom, and filler 19 is positioned at the top of lower liner 18, and described Gland 20 is positioned at the top of filler 19.In the present embodiment, the material of described filler 19 is preferably PTFE or graphite.The top of described filler assembly is provided with pressing plate 21, and described pressing plate 21 is connected by the second fixed block 22 with between valve gap 2, and in the present embodiment, described second fixed block 22 is preferably stud bolt and hexagon nut.Be provided with the first spirotallic gasket 23 between described valve gap 2 and valve body 1 and compensating cylinder 10, be provided with the second spirotallic gasket 24 between described valve seat 8 and valve body 1, between described guide ring 11 and compensating cylinder 10, be provided with seal ring 25.The top of described valve rod 12 is provided with hexagon thin nut 26.Valve rod is topmost connected with actuator, and under the linear drives of actuator, core bar assembly can utilize valve cage to lead, and does in valve cage and up and down reciprocatingly move linearly, and carries out the flow of regulation and control medium.
In the present invention, the working principle of modulating valve is: when spool 13 is opened, core bar assembly 7 moves up under the driving of actuator, thus make spool 13 depart from valve seat 8, restriction is formed between described spool 13 and valve seat 8, fluid enters through restriction from the import 4 of valve body 1 and flows in valve cage 9, again by flowing out from the outlet 5 of valve body 1 after through hole 14 throttling on valve cage 9, thus greatly reduce noise, when spool is closed, core bar assembly 7 moves down under the driving of actuator, thus spool 13 is sealed with valve seat 8 phase, fluid cannot pass through.
Modulating valve in the present invention is applicable to the occasion of High Pressure Difference, good airproof performance, leakage rate is little, the low pressure of lower chambers is caused upper chamber by the pressure compensation opening on spool by the modulating valve in the present invention, with reduce that pressure medium causes act on poppet shaft to unbalanced force, thus final controlling element load can be reduced.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Claims (8)
1. a high-differential-pressure regulating valve, it is characterized in that, comprise: valve body and the valve gap be arranged at above valve body, described valve body is connected by several first fixed block with between valve gap, one end of described valve body is provided with import, the other end of described valve body is provided with outlet, S type streamline passage is formed between described import and outlet, core bar assembly is provided with between the import of described valve body and outlet, valve seat, valve cage and compensating cylinder, described core bar assembly is positioned at valve seat, in valve cage and compensating cylinder, described valve cage is positioned at the top of valve seat, described compensating cylinder is positioned at the top of valve cage, the top of described valve cage is provided with guide ring, described core bar assembly comprises: valve rod and the spool be connected with valve rod, sealing surface is formed between described spool and valve seat, described valve cage is provided with several through hole, upper chamber is formed between described spool and valve gap, the below of described spool is provided with the lower chambers communicated with valve body import, several pressure compensation opening running through upper chamber and lower chambers is provided with in described spool, filler assembly is provided with between described valve rod and valve gap, the top of described filler assembly is provided with pressing plate, described pressing plate is connected by the second fixed block with between valve gap, the first spirotallic gasket is provided with between described valve gap and valve body and compensating cylinder, the second spirotallic gasket is provided with between described valve seat and valve body, seal ring is provided with between described guide ring and compensating cylinder.
2. a kind of high-differential-pressure regulating valve as claimed in claim 1, is characterized in that: described first fixed block is stud bolt and hexagon nut.
3. a kind of high-differential-pressure regulating valve as claimed in claim 1, is characterized in that: described second fixed block is stud bolt and hexagon nut.
4. a kind of high-differential-pressure regulating valve as claimed in claim 1, is characterized in that: described valve seat with between valve cage for step surface coordinates.
5. a kind of high-differential-pressure regulating valve as claimed in claim 1, is characterized in that: described valve cage with between compensating cylinder for step surface coordinates.
6. a kind of high-differential-pressure regulating valve as claimed in claim 1, is characterized in that: the top of described valve rod is provided with hexagon thin nut.
7. a kind of high-differential-pressure regulating valve as claimed in claim 1, is characterized in that: described filler assembly comprises lower liner, filler and Gland.
8. a kind of high-differential-pressure regulating valve as claimed in claim 7, is characterized in that: the material of described filler is PTFE or graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510410580.6A CN105042139A (en) | 2015-07-14 | 2015-07-14 | High-pressure-difference adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510410580.6A CN105042139A (en) | 2015-07-14 | 2015-07-14 | High-pressure-difference adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042139A true CN105042139A (en) | 2015-11-11 |
Family
ID=54448944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510410580.6A Pending CN105042139A (en) | 2015-07-14 | 2015-07-14 | High-pressure-difference adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042139A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2454036A1 (en) * | 1979-04-11 | 1980-11-07 | Gervasoni Bono | Fluid flow regulation valve - has lengthwise inlet and outlet passages connected by transverse ones |
| CN101737506A (en) * | 2008-11-20 | 2010-06-16 | 张家港市科辰仪表有限公司 | Single-seat adjusting valve |
| CN102182832A (en) * | 2011-05-16 | 2011-09-14 | 浙江德卡控制阀仪表有限公司 | Pilot cage regulating valve |
| CN202545859U (en) * | 2012-04-23 | 2012-11-21 | 维士威（上海）控制阀门有限公司 | Forged high-pressure high-performance regulating valve |
| CN203516758U (en) * | 2013-10-09 | 2014-04-02 | 浙江力诺流体控制科技股份有限公司 | Spring-type sleeve double-base regulating valve |
-
2015
- 2015-07-14 CN CN201510410580.6A patent/CN105042139A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2454036A1 (en) * | 1979-04-11 | 1980-11-07 | Gervasoni Bono | Fluid flow regulation valve - has lengthwise inlet and outlet passages connected by transverse ones |
| CN101737506A (en) * | 2008-11-20 | 2010-06-16 | 张家港市科辰仪表有限公司 | Single-seat adjusting valve |
| CN102182832A (en) * | 2011-05-16 | 2011-09-14 | 浙江德卡控制阀仪表有限公司 | Pilot cage regulating valve |
| CN202545859U (en) * | 2012-04-23 | 2012-11-21 | 维士威（上海）控制阀门有限公司 | Forged high-pressure high-performance regulating valve |
| CN203516758U (en) * | 2013-10-09 | 2014-04-02 | 浙江力诺流体控制科技股份有限公司 | Spring-type sleeve double-base regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204942717U (en) | Diaphragm stop valve | |
| CN108426075A (en) | A kind of big regulating ratio High Pressure Difference sleeve adjusting valve | |
| CN101504078B (en) | Screw-in forged high pressure cage type balanced regulation cut-off corner valve | |
| CN101813192B (en) | High-flow adjustable ratio control valve | |
| CN110657251A (en) | Series connection valve core double sealing surface multistage pressure reduction regulating valve | |
| CN203248431U (en) | Unloading valve, hydraulic oil cylinder oil return backpressure unloading device and engineering machine | |
| CN105546162A (en) | Combined type digital valve with loading port independently controlled and method thereof | |
| CN210890160U (en) | Series connection valve core double sealing surface multistage pressure reduction regulating valve | |
| CN204704473U (en) | A kind of multilevel decompression noise reduction modulating valve with pipeline noise reducing plate device | |
| CN203374844U (en) | Adjusting valve | |
| CN101504079A (en) | Screw-in forged high pressure air defense small-flow corner valve | |
| CN201909107U (en) | Low-flow high-pressure-difference labyrinth adjusting valve | |
| CN204610853U (en) | Anti-cavitation multistage throttle control valve | |
| CN2846908Y (en) | Piston electrohydraulic valve for digital control | |
| CN210153223U (en) | Anti-cavitation multi-sleeve regulating valve | |
| CN111637239A (en) | Gate type labyrinth control valve | |
| CN205078814U (en) | Poor guide's balanced type governing valve of silence high pressure | |
| CN204985153U (en) | Combination pneumatic cylinder and control system thereof | |
| CN105042139A (en) | High-pressure-difference adjusting valve | |
| CN211715800U (en) | Straight-through regulating valve internal part capable of being tightly shut off under particle working condition | |
| CN205244568U (en) | Single valve core solenoid valve | |
| CN209818775U (en) | Anti-cavitation valve with sectional type flow characteristic | |
| CN203743459U (en) | High-pressure adjusting valve | |
| CN201078498Y (en) | Inner cavity type pressure-limiting valve | |
| CN217056396U (en) | Multistage pressure reduction control valve capable of being used for particle working conditions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
|
| RJ01 | Rejection of invention patent application after publication |