CN200949692Y - Self-forcing fluid pressure regulating valve - Google Patents
Self-forcing fluid pressure regulating valve Download PDFInfo
- Publication number
- CN200949692Y CN200949692Y CN 200620110900 CN200620110900U CN200949692Y CN 200949692 Y CN200949692 Y CN 200949692Y CN 200620110900 CN200620110900 CN 200620110900 CN 200620110900 U CN200620110900 U CN 200620110900U CN 200949692 Y CN200949692 Y CN 200949692Y
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- cylinder body
- fluid pressure
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Abstract
The utility model discloses a self-operated fluid pressure control valve, which mainly comprises a valve body and a cylinder block. An inlet and an outlet are provided in both sides of the valve body, a medium control port, a valve base and a main pipe are provided in the interspace thereof, the valve core is integrated with a plunger as one body by the valve cap and a valve handle, an lower cavity chamber which connects with a channel is provided between the valve cap and the plunger, the channel connects with the main pipe in the valve body and connects with a upper cavity in the cylinder block by a needle valve; a spring seat is provided in the cylinder block, the spring seat and a conduct at the top of the cylinder form one body, a adjusting screw is provided in the conduct, a spring in the spring seat is provided at the top of the plunger.The utility model stably operates by the self-operated control system without an applied detection element, an executive mechanism and the influence of the external power and air supply. The utility model has double effects of control valve and safety valve.
Description
Technical field the utility model relates to a kind of air pressure or hydraulic control valve, particularly a kind of self-operated fluid pressure controlled valve.
Background technique needs modulating valve to come the parameter such as pressure, flow to system to control in the petrochemical industry industrial production, but general modulating valve can not reach and can just often have the pressure regulatory function in system, can when the quick emptying of system requirements, have the quick acting function again, not need to add control power simultaneously and finish the dual control requirement of regulating with quick emptying.
The summary of the invention the purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of self-operated fluid pressure controlled valve is provided.
Self-operated fluid pressure controlled valve of the present utility model, realize by following technical proposal: a kind of self-operated fluid pressure controlled valve, comprise valve body, valve gap, spool, piston, cylinder body, needle-valve and spring, self-erecting type fluid pressure control valve of the present utility model is made up of valve body and cylinder body two big parts, described valve body two ends are provided with import, outlet, the centre is provided with medium control mouth, also be provided with in the valve body by the import that is communicated with, outlet and the control mouthful main pipe that constitutes, the control mouth is provided with the valve seat of using for spool, valve seat top is provided with valve gap, described spool is connected with piston in being arranged on valve body by valve gap and valve rod, piston is provided with seal ring, is provided with lower chambers between valve gap and piston, and lower chambers communicates with passage, passage links to each other with main pipe in valve body, and communicates with upper chamber in the cylinder body by needle-valve; Be provided with spring seat in the described cylinder body, its section is U type structure and adapts with the conduit of intermediate portion, cylinder body top that conduit and cylinder body constitute one, and adjusting screw is housed in the conduit, and the spring in the spring seat is located at the top of piston.
The utility model relates to a kind of special valve to gas or fluid pressure quick control, this valve is for the quick variation and the pressure pulse of system pressure, have and control function preferably, it can make system height independent, need not add Detecting element and actuator, be not subjected to the influence of extraneous power supply and air feed, with from Force control system stable operation, guarantee that system pressure is stable and prevent superpressure, it is suitable for less demanding in control accuracy, and to the control backflow and the emptying of the high important control system of safety requirement, such as the oil pressure control of compressor or gas-turbine etc., its can play the double action of modulating valve and safety valve simultaneously.
The utility model is described in further detail below in conjunction with accompanying drawing for description of drawings:
Accompanying drawing is a structural representation of the present utility model
Embodiment
As shown in drawings, self-operated fluid pressure controlled valve of the present utility model, comprise valve body 1, valve gap 2, spool 3, piston 4, cylinder body 5, needle-valve 6 and spring 7, self-erecting type fluid pressure control valve of the present utility model is made up of valve body 1 and 5 liang of big parts of cylinder body, described valve body 1 two ends are provided with import 15, outlet 17, the centre is provided with medium control mouth 18, also be provided with in the valve body 1 by the import 15 that is communicated with, outlet 17 and control mouthful 18 main pipes 20 that constitute, control mouthful 18 valve seats 19 that are provided with for spool 3 usefulness, valve seat 19 tops are provided with valve gap 2, described spool 3 is connected with piston 4 in being arranged on valve body 1 by valve gap 2 and valve rod 14, piston 4 is provided with seal ring 10, between valve gap 2 and piston 4, be provided with lower chambers 9, lower chambers 9 communicates with passage 16, passage 16 links to each other with main pipe 20 in valve body 1, and communicates by the upper chamber 8 in needle-valve 6 and the cylinder body 5; Be provided with spring seat 11 in the described cylinder body 5, its section is U type structure and adapts with the conduit 12 of intermediate portion, cylinder body 5 top that conduit 12 constitutes one with cylinder body 5, and adjusting screw 13 is housed in the conduit 12, and the springs 7 in the spring seat 11 are located at the top of piston 4.
At present, in the petrochemical industry industrial production, many equipment and operation pressure need be stablized control, need reliable pressure protect.Usually, general system, industrial adopt by outer increase control signal and additional power source or instrument air comes the parameters such as pressure, flow to system to control as the modulating valve of power more, also can adopt direct-operated regulator to finish.
Though direct-operated regulator consumption in factory is little, but at some special occasions, but be irreplaceable, its main feature is to have not need to add measuring instrument, do not need the outside that power is provided yet, just the function that can own independently finish detection, compare and control forms a fully independently closed-loop adjustment loop.This is in demand for the high important system of some safety requirement.This pressure controlled valve also belongs to direct-operated regulator, owing to structurally innovate, makes structure simpler, and performance is more superior, and reaction velocity is faster.This product is the product that is exclusively used in the control upstream pressure, be specially adapted to the lubricating oil pressure control of oil, chemical industry and power industry large-scale compressor, steam turbine, the characteristics of this control are not high to required precision, but reaction is fast essential, whole oil masses that can in time stand by pump be started increase suddenly enter fuel tank, simultaneously oil pressure are had than great fluctuation process.In order to ensure the safety of unit, this control loop also must not be subjected to any influence that adds factor, the influence that is not had a power failure, stops the supple of gas or steam, as long as there is oil in system, oil pressure control system is the energy proper functioning just, to guarantee the safety of unit.In addition, in petrochemical industry is produced, the place that needs the quick emptying of superpressure that some safety requirement are high, this control valve can reach satisfied effect, avoids generation equipment and security incident.Finish control and protective function.Simultaneously, provide the place of power supply and instrument air to some inconvenience, it also is a kind of desirable selection.
Adjustment process of the present utility model is: when medium enters the bottom of spool 3 by import 15, enter lower chambers 9 by passage 16 by main pipe 20 simultaneously, and enter upper chamber 8 by needle-valve 6 throttlings; When system pressure was stablized, the assembly that spool 3 and piston 4 are formed was subjected to thrust that pressure medium makes progress and medium assembly downward thrust and spring 7 downward thrusts is balanced each other, and spool 3 is in certain aperture; When pilot pressure fluctuates, raise such as pressure, making spool 3 and filling in 4 thrusts that make progress while still alive increases immediately, and because the damping function of needle-valve 6, the pressure of the upper chamber 8 on piston 4 tops has little time to increase synchronously with the pressure of the lower chambers 9 of piston 4 bottoms, spool 3 is moved up and opens big valve fast.Subsequently, the pressure of the pressure of upper chamber 8 and lower chambers 9 is balance gradually, makes spool 3 arrive a new equilibrium position.
Above adjustment process is based upon on the compressible basis of medium, says exactly, and the medium in the upper chamber 8 must be compressible, this means only to be applicable to gas.If be used for liquid, then be a simple proportional valve, because the incompressibility of liquid makes slow in one's movements.In order to make product be applicable to incompressible liquid medium simultaneously, the utility model in the middle of cylinder body 5, have one with the conduit 12 of cylinder body 5 rigidity seamless links, the intercommunicating pore position of upper chamber 8 and needle-valve 6 must be lower than the lowest part of conduit 12 simultaneously, with the gas of guaranteeing upper chamber 8 tops can not since the minute leakage of the adjusting screw 13 at top run away, guaranteed the air that always has one section eliminating not fall in the upper chamber 8, thereby when being used for incompressible medium, remain in general and can compress for upper chamber 8, thereby the utility model both can be used for compressed media, also can be used for incompressible medium.Adjusting needle-valve 6 can make pressure control stable.
Claims (1)
1, a kind of self-operated fluid pressure controlled valve, comprise valve body (1), valve gap (2), spool (3), piston (4), cylinder body (5), needle-valve (6) and spring (7), it is characterized in that: self-operated fluid pressure controlled valve of the present utility model is made up of valve body (1) and cylinder body (5) two big parts, described valve body (1) two ends are provided with import (15), outlet (17), the centre is provided with medium control mouthful (18), also be provided with in the valve body (1) by the import (15) that is communicated with, the main pipe (20) that outlet (17) and control mouthful (18) constitute, control mouthful (18) is provided with the valve seat (19) for spool (3) usefulness, valve seat (19) top is provided with valve gap (2), described spool (3) is connected with valve rod (14) piston (4) interior with being arranged on valve body (1) by valve gap (2), piston (4) is provided with seal ring (10), between valve gap (2) and piston (4), be provided with lower chambers (9), lower chambers (9) communicates with passage (16), passage (16) links to each other with main pipe (20) in valve body (1), and communicates by the interior upper chamber (8) of needle-valve (6) and cylinder body (5); Be provided with spring seat (11) in the described cylinder body (5), its section is U type structure and adapts with the conduit (12) of cylinder body (5) intermediate portion, top, conduit (12) constitutes one with cylinder body (5), adjusting screw (13) is housed in the conduit (12), and the spring (7) in the spring seat (11) is located at the top of piston (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110900 CN200949692Y (en) | 2006-07-03 | 2006-07-03 | Self-forcing fluid pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110900 CN200949692Y (en) | 2006-07-03 | 2006-07-03 | Self-forcing fluid pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949692Y true CN200949692Y (en) | 2007-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620110900 Expired - Fee Related CN200949692Y (en) | 2006-07-03 | 2006-07-03 | Self-forcing fluid pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949692Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984295A (en) * | 2010-09-01 | 2011-03-09 | 魏强 | Make-up water pressurization system using circulation and make-up water difunctional integrated pump |
| CN102128302A (en) * | 2010-12-15 | 2011-07-20 | 周建祥 | Low pressure valve with improved structure |
| CN102313055A (en) * | 2010-06-29 | 2012-01-11 | 江苏神通阀门股份有限公司 | Self-operated adjusting valve |
| CN103038465A (en) * | 2010-06-04 | 2013-04-10 | 汉斯延森注油器公司 | Hydraulic System For Central Lubrication Of Engine Cylinders |
| CN104373647A (en) * | 2014-11-29 | 2015-02-25 | 中国船舶重工集团公司第七�三研究所 | Lubricating oil low-pressure protecting device |
| CN105297805A (en) * | 2015-11-30 | 2016-02-03 | 湖南金松汽车有限公司 | Sludge suction system of sewage suction truck |
| CN105737460A (en) * | 2016-03-20 | 2016-07-06 | 浙江迪贝电气股份有限公司 | Household refrigerator multi-stage throttling refrigerating system |
| CN106909176A (en) * | 2017-04-13 | 2017-06-30 | 常州华阳医药科技有限公司 | Reflux ratio controller |
| CN111332614A (en) * | 2020-03-30 | 2020-06-26 | 马兴平 | Telescopic overlapped anaerobic container |
| CN111921726A (en) * | 2017-09-29 | 2020-11-13 | 深圳市大疆创新科技有限公司 | Valve body structure and pressure nozzle device |
-
2006
- 2006-07-03 CN CN 200620110900 patent/CN200949692Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103038465A (en) * | 2010-06-04 | 2013-04-10 | 汉斯延森注油器公司 | Hydraulic System For Central Lubrication Of Engine Cylinders |
| CN102313055A (en) * | 2010-06-29 | 2012-01-11 | 江苏神通阀门股份有限公司 | Self-operated adjusting valve |
| CN101984295A (en) * | 2010-09-01 | 2011-03-09 | 魏强 | Make-up water pressurization system using circulation and make-up water difunctional integrated pump |
| CN102128302A (en) * | 2010-12-15 | 2011-07-20 | 周建祥 | Low pressure valve with improved structure |
| CN104373647A (en) * | 2014-11-29 | 2015-02-25 | 中国船舶重工集团公司第七�三研究所 | Lubricating oil low-pressure protecting device |
| CN105297805A (en) * | 2015-11-30 | 2016-02-03 | 湖南金松汽车有限公司 | Sludge suction system of sewage suction truck |
| CN105737460A (en) * | 2016-03-20 | 2016-07-06 | 浙江迪贝电气股份有限公司 | Household refrigerator multi-stage throttling refrigerating system |
| CN106909176A (en) * | 2017-04-13 | 2017-06-30 | 常州华阳医药科技有限公司 | Reflux ratio controller |
| CN106909176B (en) * | 2017-04-13 | 2023-08-15 | 常州华阳医药科技有限公司 | Reflux ratio controller |
| CN111921726A (en) * | 2017-09-29 | 2020-11-13 | 深圳市大疆创新科技有限公司 | Valve body structure and pressure nozzle device |
| CN111332614A (en) * | 2020-03-30 | 2020-06-26 | 马兴平 | Telescopic overlapped anaerobic container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20110703 |