CN103821981B - Pressure type modulating valve in self-powering type - Google Patents
Pressure type modulating valve in self-powering type Download PDFInfo
- Publication number
- CN103821981B CN103821981B CN201410104804.6A CN201410104804A CN103821981B CN 103821981 B CN103821981 B CN 103821981B CN 201410104804 A CN201410104804 A CN 201410104804A CN 103821981 B CN103821981 B CN 103821981B
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- China
- Prior art keywords
- valve
- self
- pressure
- core assembly
- powering
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- 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.)
- Expired - Fee Related
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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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses pressure type modulating valve in a kind of self-powering type, it is characterized in that described valve body directly communicates with the cavity of resorption of valve gap, and setting is sealed and matched in the epicoele of valve gap, the equalizing piston that can move up and down, upper and lower mangetic core assembly, equalizing piston and spring seat are fixed by socket by valve rod coaxial line, and described valve body is double-valve-seat structure valve body, arrange in valve pocket, lower double spool, valve base sealing structure, described bottom is provided with the guide sleeve play the guiding role when moving up and down for valve rod, self-powering type voltage regulation function is realized by valve pocket internal pressure balance mode, eliminate outside PRESSURE PIPE, and decrease dielectric leakage point, effectively extend the Applicable scope of self-contained pressure regulator product, be specially adapted to the Self-operated pressure regulable control of high viscosity medium, have and be active in one's movements, good airproof performance, stable performance, the advantages such as long service life.
Description
Technical field
The present invention relates to a kind of self-contained pressure regulator, particularly relate to pressure type modulating valve in a kind of self-powering type.
Background technique
Self-contained pressure regulator is a kind of without the need to extra power, only utilizes and is changed by tune medium pressure itself a kind of modulating valve product automatically adjusted, be used widely at the pressure regulation control system of the process pipes such as various gas, liquid and steam.
But existing self-contained pressure regulator generally all adopts and by PRESSURE PIPE, the medium before valve or after valve in pipeline is directed in the final controlling element of self-contained pressure regulator, utilizing the adjustment members such as the convolution diaphragm in Regulation spring and final controlling element to carry out pressure balance, is namely adopt outside pressure taking structure.The shortcoming of this outer pressure taking structure is: pressure pipeline is long, and it is large that pressure transmits flow resistance, especially for high viscosity mediums such as heavy oil, very easily causes PRESSURE PIPE to block; Also add the leakage point of medium in addition.Therefore its applying working condition scope is subject to a definite limitation, and the more difficult accurate control realizing pressure, will the normal operation of manufacturing equipment be had influence on.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide the technological scheme of pressure type modulating valve in a kind of self-powering type.
Technical solution of the present invention is: pressure type modulating valve in self-powering type, mainly comprises bottom 1, valve body 2
,lower valve base 3, lower valve core assembly 4, upper valve base 5, upper valve core assembly 6, valve gap 7, valve rod 8, O RunddichtringO 9, equalizing piston 10, spring seat 11, Regulation spring 12, adjustment disk 13, upper cover plate 14, adjusting screw rod 15, protective housing 16, guide sleeve 17 and coupling, described valve gap 7 is fixedly installed on valve body 2 top, run through in valve gap 7 and valve rod 8 is set, described valve rod 8 lower end is fixedly installed upper and lower mangetic core assembly, and described upper and lower mangetic core assembly can with the upper and lower valve seat fitted seal be arranged in valve body; Described valve rod 8 top is fixedly installed equalizing piston 10 and spring seat 11, and described spring seat 11 arranges Regulation spring 12, and described Regulation spring 12 upper end arranges adjustment disk 13 and adjusting screw rod 15; Upper cover plate 14 capping of described valve gap 7 top, the exposed part outside valve gap 7 of described adjusting screw rod 15 is provided with protective housing 16.It is characterized in that described valve body 2 directly communicates with the cavity of resorption of valve gap 7, and in the epicoele of described valve gap 7, setting is sealed and matched and the equalizing piston 10 that can move up and down.
Preferably, described valve body 2 is double-valve-seat structure valve bodies, arranges upper and lower double spool, valve base sealing structure in valve pocket.
Preferably, described lower valve core assembly 4, upper valve core assembly 6, equalizing piston 10 are fixed by socket by described valve rod 8 coaxial line with spring seat 11.
Preferably, the sidewall of described valve gap epicoele offers exhaust port 18.
Preferably, described mangetic core assembly is the soft sealing structure adopting reinforced TFE and stainless steel material Combined machining.
Preferably, described bottom 1 is provided with the guide sleeve 17 play the guiding role when moving up and down for valve rod 8.
Preferably, the lower end sidewall of described guide sleeve 17 offers pressure compensation opening 20.
Preferably, described valve rod 8 offers axial pilot groove 19 with guide sleeve 17 matching part.
Preferably, described adjusting screw rod 15 upper end is provided with protective housing 16.
Preferably, described Regulation spring is arranged on described spring seat 11, makes to act on the active force that active force downward on spring seat 11 and pressure medium to act on described equalizing piston 10 upwards and realizes balancing.And by the described adjusting screw rod 15 of adjustment, regulate described Regulation spring 12 to act on pretightening force size on spring seat 11, different pilot pressure values can be realized.
The beneficial effect that the present invention brings is: realize self-powering type voltage regulation function by valve pocket internal pressure balance mode, eliminate outside PRESSURE PIPE, and decrease dielectric leakage point, effectively extend the Applicable scope of self-contained pressure regulator product, be specially adapted to the Self-operated pressure regulable control of high viscosity medium, have and be active in one's movements, good airproof performance, stable performance, the advantages such as long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further.
The embodiment of the present invention as shown in Figure 1, mainly comprises bottom 1, valve body 2
,lower valve base 3, lower valve core assembly 4, upper valve base 5, upper valve core assembly 6, valve gap 7, valve rod 8, O RunddichtringO 9, equalizing piston 10, spring seat 11, Regulation spring 12, adjustment disk 13, upper cover plate 14, adjusting screw rod 15, protective housing 16, guide sleeve 17 and coupling, described valve gap 7 is fixedly installed on valve body 2 top, run through in valve gap 7 and valve rod 8 is set, described valve rod 8 lower end is fixedly installed upper and lower mangetic core assembly, and described upper and lower mangetic core assembly can with the upper and lower valve seat fitted seal be arranged in valve body; Described valve rod 8 top is fixedly installed on spring seat 11 described in equalizing piston 10 and spring seat 11 and arranges Regulation spring 12, and described Regulation spring 12 upper end arranges adjustment disk 13 and adjusting screw rod 15; Upper cover plate 14 capping of described valve gap 7 top, the exposed part outside valve gap 7 of described adjusting screw rod 15 is provided with protective housing 16.It is characterized in that described valve body 2 directly communicates with the cavity of resorption of valve gap 7, and in the epicoele of described valve gap 7, setting is sealed and matched and the equalizing piston 10 that can move up and down, and realizes the conduction of pressure medium.
Described lower valve core assembly 4, upper valve core assembly 6, equalizing piston 10 are fixed by socket by described valve rod 8 coaxial line with spring seat 11.
Described valve body 2 is double-valve-seat structure valve bodies, upper and lower double spool, valve base sealing structure are set in valve pocket, pressure medium can be made to act on the identical mangetic core assembly up and down of sectional area simultaneously, reducing pressure medium fluctuation causes mangetic core assembly to tremble up and down, thus effectively improve the stability of institute's regulable control pressure, make the degree of regulation of whole valve not by the impact of pressure medium fluctuation.
The sidewall of described valve gap epicoele offers several exhaust ports 18, change impact on regulable control pressure precision needed for valve to avoid valve gap epicoele internal air pressure.
Described upper and lower mangetic core assembly 4 and 6 is the soft sealing structures adopting reinforced TFE and stainless steel material Combined machining; Also can adopt directly with the hard sealing structure that stainless steel material makes.
Described bottom 1 is provided with the guide sleeve 17 play the guiding role when moving up and down for valve rod 8, effectively can improve stability when mangetic core assembly moves up and down.
The lower end sidewall of described guide sleeve 17 offers pressure compensation opening 20, and described valve rod 8 offers axial pilot groove 19 with guide sleeve 17 matching part, to realize the pressure balance of guide sleeve inner chamber, avoid the impact of pressure change on required regulable control pressure precision because guide sleeve inner chamber is airtight.
Described adjusting screw rod 15 upper end is provided with protective housing 16, plays and prevents corrosion and the effect avoiding arbitrarily adjusting.
Described Regulation spring is arranged on described spring seat 11, makes to act on the active force that active force downward on spring seat 11 and pressure medium to act on described equalizing piston 10 upwards and realizes balancing.And by the described adjusting screw rod 15 of adjustment, regulate described Regulation spring 12 to act on pretightening force size on spring seat 11, different pilot pressure values can be realized.
Described bottom 1, between valve gap 7 and valve body 2, all add the gasket seal sealed.
Its working principle is: the pressure medium in valve inlet end cavity acts on the identical mangetic core assembly up and down of sectional area simultaneously, and namely when pressure medium is stablized, mangetic core assembly keeps state of equilibrium.Pressure medium acts on equalizing piston active force upwards simultaneously, and act on the downward active force of valve rod also in state of equilibrium with Regulation spring, valve is in steady-working state.When the pressure medium of entrance point increases, act on equalizing piston active force upwards and be greater than downward active force set by Regulation spring, pressure medium promotes equalizing piston, and drive mangetic core assembly to move up, spool aperture increases, and also namely medium circulation area increases, thus increases through the flow of valve seat, valve inlet end pressure is reduced gradually, finally tends to balance and make pressure medium remain on setting value.Otherwise, when the pressure medium in valve inlet end cavity reduces, act on equalizing piston active force upwards and be less than downward active force set by Regulation spring, Regulation spring promotes equalizing piston, and driving mangetic core assembly to move down, spool aperture reduces, and medium circulation area reduces, until close, valve inlet end pressure is made to be stabilized to setting value gradually.
Claims (7)
1. pressure type modulating valve in self-powering type, mainly comprise bottom, valve body, lower valve base, lower valve core assembly, upper valve base, upper valve core assembly, valve gap, valve rod, O RunddichtringO, equalizing piston, spring seat, Regulation spring, adjustment disk, upper cover plate, adjusting screw rod, protective housing, guide sleeve and coupling, described valve gap is fixedly installed on valve body top, run through in valve gap and valve rod is set, described valve rod lower end is socketed upper and lower mangetic core assembly, sealing surface and the upper and lower valve seat fitted seal be arranged in valve body of described upper and lower mangetic core assembly; Described valve stem top is fixedly installed equalizing piston and spring seat, described spring seat arranges Regulation spring, and described Regulation spring upper end arranges adjustment disk and adjusting screw rod; It is characterized in that described valve body directly communicates with the cavity of resorption of valve gap, and the equalizing piston being sealed and matched, can moving up and down is set in the epicoele of described valve gap; Described bottom is provided with the guide sleeve play the guiding role when moving up and down for valve rod; Described valve rod and guide sleeve matching part offer axial pilot groove.
2. pressure type modulating valve in self-powering type according to claim 1, is characterized in that: described valve body is double-valve-seat structure valve body, arranges upper and lower double spool, valve base sealing structure in valve pocket.
3. pressure type modulating valve in self-powering type according to claim 1, is characterized in that: described lower valve core assembly, upper valve core assembly, equalizing piston and spring seat are fixed by socket by described valve rod coaxial line.
4. pressure type modulating valve in self-powering type according to claim 1, is characterized in that: the sidewall of described valve gap epicoele offers exhaust port.
5. pressure type modulating valve in self-powering type according to claim 1, is characterized in that: described mangetic core assembly is the soft sealing structure adopting reinforced TFE and stainless steel material Combined machining.
6. pressure type modulating valve in self-powering type according to claim 1, is characterized in that: the lower end sidewall of described guide sleeve offers pressure compensation opening.
7. pressure type modulating valve in self-powering type according to claim 1, is characterized in that: described adjusting screw rod upper end is provided with protective housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104804.6A CN103821981B (en) | 2014-03-20 | 2014-03-20 | Pressure type modulating valve in self-powering type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104804.6A CN103821981B (en) | 2014-03-20 | 2014-03-20 | Pressure type modulating valve in self-powering type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103821981A CN103821981A (en) | 2014-05-28 |
| CN103821981B true CN103821981B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410104804.6A Expired - Fee Related CN103821981B (en) | 2014-03-20 | 2014-03-20 | Pressure type modulating valve in self-powering type |
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| CN (1) | CN103821981B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889588A (en) * | 2016-04-21 | 2016-08-24 | 杭州艾诺流体控制仪表有限公司 | Lining fluorine self-operated double-seat pressure adjusting valve |
| US11156297B2 (en) * | 2017-05-26 | 2021-10-26 | Gea Tuchenhagen Gmbh | Diaphragm-sealed double-seat valve and drive |
| CN107327602B (en) * | 2017-08-17 | 2023-12-22 | 北京祺开科技有限公司 | Gate valve and pipeline system |
| CN108953638B (en) * | 2018-06-26 | 2023-06-27 | 浙江派沃自控仪表有限公司 | Self-operated emergency cut-off valve with double control points |
| CN109373031B (en) * | 2018-11-26 | 2023-12-22 | 乐山川天燃气输配设备有限公司 | Hinge structure direct acting voltage regulator |
| CN111609192A (en) * | 2020-04-24 | 2020-09-01 | 杨皓然 | Ultramicro-pressure self-operated pressure regulating valve |
| CN115163844B (en) * | 2022-06-24 | 2024-10-18 | 中国船舶重工集团公司第七一九研究所 | Wide-range balance plunger regulating valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202017804U (en) * | 2011-04-15 | 2011-10-26 | 王元清 | Low-pressure pilot-type safety valve |
| CN202852103U (en) * | 2012-09-14 | 2013-04-03 | 杭州艾诺流体控制仪表有限公司 | Self-operated pressure regulator suitable for low-temperature environment |
| CN202852104U (en) * | 2012-09-14 | 2013-04-03 | 杭州艾诺流体控制仪表有限公司 | Large-aperture self-operated pressure regulating valve |
| CN203757110U (en) * | 2014-03-20 | 2014-08-06 | 浙江科海仪表有限公司 | Self-operated internal pressure tapping type adjusting valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1391673B1 (en) * | 2008-08-18 | 2012-01-17 | Carel S P A | PERFECTED REGULATION VALVE STRUCTURE, PARTICULARLY FOR ADJUSTING THE FLUID FLOW IN REFRIGERATING SYSTEMS |
-
2014
- 2014-03-20 CN CN201410104804.6A patent/CN103821981B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202017804U (en) * | 2011-04-15 | 2011-10-26 | 王元清 | Low-pressure pilot-type safety valve |
| CN202852103U (en) * | 2012-09-14 | 2013-04-03 | 杭州艾诺流体控制仪表有限公司 | Self-operated pressure regulator suitable for low-temperature environment |
| CN202852104U (en) * | 2012-09-14 | 2013-04-03 | 杭州艾诺流体控制仪表有限公司 | Large-aperture self-operated pressure regulating valve |
| CN203757110U (en) * | 2014-03-20 | 2014-08-06 | 浙江科海仪表有限公司 | Self-operated internal pressure tapping type adjusting valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103821981A (en) | 2014-05-28 |
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Granted publication date: 20160323 Termination date: 20200320 |