CN105937512A - Working method of adjustable piston type bidirectional pressure relief valve - Google Patents
Working method of adjustable piston type bidirectional pressure relief valve Download PDFInfo
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- CN105937512A CN105937512A CN201610512489.XA CN201610512489A CN105937512A CN 105937512 A CN105937512 A CN 105937512A CN 201610512489 A CN201610512489 A CN 201610512489A CN 105937512 A CN105937512 A CN 105937512A
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- piston
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- pressure
- relief valve
- dividing plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a working method of an adjustable piston type bidirectional pressure relief valve. The working method is characterized in that an adjusting nut is adjusted according to the set pressure of a fluid so as to adjust elastic potential energy of a spring, a release pressure value of the fluid in a fluid channel of an outer shell is controlled finally, the pressure at the left end and the pressure at the right end of the adjustable piston type bidirectional pressure relief valve are equal, and a piston does not act; when a pressure difference exists between the left end and the right end of the adjustable piston type bidirectional pressure relief valve, and the pressure difference is larger than the set release pressure value, the piston moves to achieve the purpose of releasing pressure till the pressure on the left side of a partition plate and the pressure on the right side of the partition plate are equal, and the piston returns to the original position. The working method of the adjustable piston type bidirectional pressure relief valve has the advantages that bidirectional pressure relief can be conducted, the structure is simple, the performance is stable, the pressure release time is short, the speed is high, the precision is high, and the sealing property is good.
Description
Technical field
The present invention relates to the method for work of a kind of adjusting flexible plunger type bidirection press relief valve.
Background technology
At radiator, cooling system, hydraulic system, lubricating system, fluid drive system, power system, the mechanical main shaft of lathe, machining center and liquid etc.；In system above, liquid has some impacts, pulse in flow process, instantaneous pressure is big, instantaneous delivery is big etc. harsh wants condition for peace, the fluid used in winter and severe cold area machinery especially, when machinery just starts, viscosity is big, poor fluidity, with great impact power, affect the paralysis of whole machinery, machining center.In order to make pressure balance, well discharge pressure, other equipment or other components and parts will not be brought damage and scrap, having relief valve on the market so that system pressure balances, safeguards system safety.Relief valve the most on the market is all unidirectional relief valve, needs set direction in installation process, additionally can not be applicable on the pipeline that two-way circulates, and can not set pressure pressure release value.Therefore seek a kind of can to carry out double-direction relief, simple in construction, stable performance, the short speed of venting duration is fast, precision is high, the adjusting flexible plunger type bidirection press relief valve of good airproof performance is particularly important.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that a kind of can carry out double-direction relief, simple in construction, stable performance, the short speed of venting duration is fast, precision is high, the method for work of the adjusting flexible plunger type bidirection press relief valve of good airproof performance.
The object of the present invention is achieved like this:
nullA kind of method of work of adjusting flexible plunger type bidirection press relief valve，Adjusting flexible plunger type bidirection press relief valve includes shell body、Inner housing、Piston、Two springs、Two regulating blocks and two adjusting nuts，Described shell body lateral arrangement，The shell body fluid passage of a lateral direction penetrating is formed in described shell body，The middle part of described shell body is provided with Fluid passageways chamber，The internal diameter in Fluid passageways chamber is more than the external diameter of shell body fluid passage，Fluid passageways intracavity is fixedly installed one piece and separates ring flat-plate，Separate ring flat-plate and Fluid passageways chamber is separated to form two Fluid passageways half chambeies, left and right，Left section of described shell body is symmetrically arranged with a nut groove with right section，Described piston is horizontally set at the middle part of shell body fluid passage，Spring is the most from inside to outside set gradually in the shell body fluid passage of the piston left and right sides、Regulating block and inner housing，The outer end of two springs connects the inner of two regulating blocks respectively，In the outer section of two regulating blocks, rotation is equipped with two adjusting nuts respectively，Regulating block and adjusting nut threaded engagement，Adjusting nut is limited in nut groove，Gap is left between inner face and the shell body of regulating block，Gap is left between outer face and the inner housing of regulating block，Described piston is the hollow structure of left and right both ends open，Described piston includes piston shell，The middle part of described piston shell is provided with one piece of dividing plate being vertically arranged，The inside of piston is divided into two the piston fluid passages being in communication with the outside respectively in left and right by dividing plate，It is positioned at and on the piston shell of the dividing plate left and right sides, is provided with the fluid bore being arranged symmetrically with.
First according to the setting pressure of fluid, adjusting nut is adjusted, thus the elastic potential energy of spring is adjusted, the final pressure release value controlled in fluid shell fluid passage outside；
When the pressure at the two ends, left and right of adjusting flexible plunger type bidirection press relief valve is equal, piston is in housing center position, and the partition position of piston is corresponding with the position separating ring flat-plate of housing, and piston does not do action；
When the left end pressure of adjusting flexible plunger type bidirection press relief valve is more than right-hand member pressure, owing to the pressure in the piston fluid passage on the left of dividing plate is more than the pressure in the piston fluid passage on the right side of dividing plate, fluid forces dividing plate moves right, so that piston also moves right, when the fluid bore on the left of dividing plate is positioned at Fluid passageways half intracavity on right side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity on right side in the piston fluid passage in left side by fluid bore, it flow to the most again in the piston fluid passage on right side, thus reach the purpose of pressure release, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ；
When the right-hand member pressure of adjusting flexible plunger type bidirection press relief valve is more than left end pressure, owing to the pressure in the piston fluid passage on the right side of dividing plate is more than the pressure in the piston fluid passage on the left of dividing plate, fluid forces dividing plate is moved to the left, so that piston is also moved to the left, when the fluid bore on the right side of dividing plate is positioned at Fluid passageways half intracavity in left side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity in left side in the piston fluid passage on right side by fluid bore, it flow to the most again in the piston fluid passage in left side, thus reach the purpose of pressure release, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ.
The outer end inner wall of inner housing is provided with connection screw thread.
Hollow out at the shell body of adjusting nut front and rear surfaces, the outer surface of adjusting nut is provided with graduation mark.
The internal diameter separating ring flat-plate is consistent with the internal diameter of shell body fluid passage.
The external diameter of spring mates with the internal diameter of shell body fluid passage.
Described fluid bore is circular layout on piston shell.
The fluid bore of the every side of dividing plate is provided with multi-turn.
The fluid bore of high order end is not more than the lateral separation in Fluid passageways half chamber to the lateral separation between the fluid bore of low order end.
Described piston. two ends, left and right be provided with the step coordinated with spring.
It is provided with inner seal ring between inner segment outer wall and the shell body of regulating block, between the outer section inwall inner housing of regulating block, is provided with exterior seal ring.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has can carry out double-direction relief, simple in construction, stable performance, the short speed of venting duration is fast, precision is high, the advantage of good airproof performance.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of adjusting flexible plunger type bidirection press relief valve.
Fig. 2 is the contour structures schematic diagram of adjusting flexible plunger type bidirection press relief valve.
Fig. 3 is the section plan of housing.
Fig. 4 is the section plan of piston.
Fig. 5 is that the plane of adjusting flexible plunger type bidirection press relief valve partly cuts open explosive view.
Fig. 6 is that the solid of adjusting flexible plunger type bidirection press relief valve partly cuts open explosive view.
Fig. 7 is the schematic diagram of embodiment 1.
Fig. 8 is the schematic diagram of embodiment 2.
Wherein:
Shell body 701, shell body fluid passage 701.1, Fluid passageways chamber 701.2, separation ring flat-plate 701.3, nut groove 701.4
Inner housing 702
Piston 703, piston shell 703.1, dividing plate 703.2, fluid bore 703.3, step 703.4, piston fluid passage 703.5
Spring 704
Regulating block 705
Adjusting nut 706
Connecting bolt 707
Inner seal ring 708
Exterior seal ring 709.
Detailed description of the invention
nullSee Fig. 1 ~ Fig. 8，A kind of adjusting flexible plunger type bidirection press relief valve that the present invention relates to，It includes shell body 701、Inner housing 702、Piston 703、Two springs 704、Two regulating blocks 705 and two adjusting nuts 706，Described shell body 701 lateral arrangement，The shell body fluid passage 701.1 of a lateral direction penetrating is formed in described shell body 701，The middle part of described shell body 701 is provided with Fluid passageways chamber 701.2，The internal diameter in Fluid passageways chamber 701.2 is more than the external diameter of shell body fluid passage 701.1，It is fixedly installed one piece in Fluid passageways chamber 701.2 and separates ring flat-plate 701.3，The internal diameter separating ring flat-plate 701.3 is consistent with the internal diameter of shell body fluid passage 701.1，Separate ring flat-plate 701.3 and Fluid passageways chamber 701.2 is separated to form two Fluid passageways half chambeies, left and right，Left section of described shell body 701 is symmetrically arranged with a nut groove 701.4 with right section.Described piston 703 is horizontally set at the middle part of shell body fluid passage 701.1, the most from inside to outside setting gradually spring 704, regulating block 705 and inner housing 702 in the shell body fluid passage 701.1 of piston 703 left and right sides, the external diameter of spring 704 mates with the internal diameter of shell body fluid passage 701.1.The outer end of two springs 704 connects the inner of two regulating blocks 705 respectively, in the outer section of two regulating blocks 705, rotation is equipped with two adjusting nuts 706 respectively, hollow out at the shell body 701 of adjusting nut 706 front and rear surfaces, the outer surface of adjusting nut 706 is provided with graduation mark, regulating block 705 and adjusting nut 706 threaded engagement, adjusting nut 706 is limited in nut groove 701.4, put adjusting nut 706 by rotation and can regulate the lateral separation of regulating block 705, thus regulate the elastic potential energy of spring 704, the pressure release value in fluid shell fluid passage 701.1 outside can be controlled.Inner housing 702 is fixed by connecting bolt 707 with shell body 701, the outer end inner wall of inner housing 702 is provided with connection screw thread, it is provided with inner seal ring 708 between inner segment outer wall and the shell body 701 of regulating block 705, it is provided with exterior seal ring 709 between the outer section inwall inner housing 702 of regulating block 705, leave gap between inner face and the shell body 701 of regulating block 705, between outer face and the inner housing 702 of regulating block 705, leave gap.
nullDescribed piston 703 is the hollow structure of left and right both ends open，Described piston 703 includes piston shell 703.1，The middle part of described piston shell 703.1 is provided with one piece of dividing plate being vertically arranged 703.2，The inside of piston 703 is divided into two the piston fluid passages 703.5 being in communication with the outside respectively in left and right by dividing plate 703.2，It is positioned at and on the piston shell 703.1 of dividing plate 703.2 left and right sides, is provided with the fluid bore 703.3 being arranged symmetrically with，Described fluid bore 703.3 is circular layout on piston shell 703.1，The fluid bore 703.3 of the every side of dividing plate 703.2 can be provided with multi-turn，Lateral separation between one circle fluid bore 703.3 of one circle fluid bore 703.3 to low order end of high order end is not more than the lateral separation in Fluid passageways half chamber.The two ends, left and right of described piston 703 are provided with the step 703.4 coordinated with spring 704.
A kind of method of work of adjusting flexible plunger type bidirection press relief valve:
First according to the setting pressure of fluid, adjusting nut is adjusted, thus the elastic potential energy of spring is adjusted, the final pressure release value controlled in fluid shell fluid passage outside；
When the pressure at the two ends, left and right of adjusting flexible plunger type bidirection press relief valve is equal, piston is in housing center position, and the partition position of piston is corresponding with the position separating ring flat-plate of housing, and piston does not do action；
Embodiment 1, when the left end pressure of adjusting flexible plunger type bidirection press relief valve is more than right-hand member pressure, owing to the pressure in the piston fluid passage on the left of dividing plate is more than the pressure in the piston fluid passage on the right side of dividing plate, fluid forces dividing plate moves right, so that piston also moves right, when the fluid bore on the left of dividing plate is positioned at Fluid passageways half intracavity on right side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity on right side in the piston fluid passage in left side by fluid bore, it flow to the most again in the piston fluid passage on right side, thus reach the purpose of pressure release, now the spring in left side is in extended state, the spring on right side is in compressive state, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ.
Embodiment 2, when the right-hand member pressure of adjusting flexible plunger type bidirection press relief valve is more than left end pressure, owing to the pressure in the piston fluid passage on the right side of dividing plate is more than the pressure in the piston fluid passage on the left of dividing plate, fluid forces dividing plate is moved to the left, so that piston is also moved to the left, when the fluid bore on the right side of dividing plate is positioned at Fluid passageways half intracavity in left side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity in left side in the piston fluid passage on right side by fluid bore, it flow to the most again in the piston fluid passage in left side, thus reach the purpose of pressure release, now the spring on right side is in extended state, the spring in left side is in compressive state, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ.
Claims (10)
- null1. the method for work of an adjusting flexible plunger type bidirection press relief valve，It is characterized in that described adjusting flexible plunger type bidirection press relief valve includes shell body (701)、Inner housing (702)、Piston (703)、Two springs (704)、Two regulating blocks (705) and two adjusting nuts (706)，Described shell body (701) lateral arrangement，The shell body fluid passage (701.1) of a lateral direction penetrating is formed in described shell body (701)，The middle part of described shell body (701) is provided with Fluid passageways chamber (701.2)，The internal diameter in Fluid passageways chamber (701.2) is more than the external diameter of shell body fluid passage (701.1)，It is fixedly installed one piece in Fluid passageways chamber (701.2) and separates ring flat-plate (701.3)，Separate ring flat-plate (701.3) and Fluid passageways chamber (701.2) are separated to form two Fluid passageways half chambeies, left and right，Left section of described shell body (701) is symmetrically arranged with a nut groove (701.4) with right section，Described piston (703) is horizontally set at the middle part of shell body fluid passage (701.1)，Spring (704) is the most from inside to outside set gradually in the shell body fluid passage (701.1) of piston (703) left and right sides、Regulating block (705) and inner housing (702)，The outer end of two springs (704) connects the inner of two regulating blocks (705) respectively，In the outer section of two regulating blocks (705), rotation is equipped with two adjusting nuts (706) respectively，Regulating block (705) and adjusting nut (706) threaded engagement，Adjusting nut (706) is limited in nut groove (701.4)，Gap is left between inner face and the shell body (701) of regulating block (705)，Gap is left between outer face and the inner housing (702) of regulating block (705)，Described piston (703) is the hollow structure of left and right both ends open，Described piston (703) includes piston shell (703.1)，The middle part of described piston shell (703.1) is provided with one piece of dividing plate being vertically arranged (703.2)，The inside of piston (703) is divided into two the piston fluid passages (703.5) being in communication with the outside respectively in left and right by dividing plate (703.2)，It is positioned on the piston shell (703.1) of dividing plate (703.2) left and right sides and is provided with the fluid bore (703.3) being arranged symmetrically with；First according to the setting pressure of fluid, adjusting nut is adjusted, thus the elastic potential energy of spring is adjusted, the final pressure release value controlled in fluid shell fluid passage outside；When the pressure at the two ends, left and right of adjusting flexible plunger type bidirection press relief valve is equal, piston is in housing center position, and the partition position of piston is corresponding with the position separating ring flat-plate of housing, and piston does not do action；When the left end pressure of adjusting flexible plunger type bidirection press relief valve is more than right-hand member pressure, owing to the pressure in the piston fluid passage on the left of dividing plate is more than the pressure in the piston fluid passage on the right side of dividing plate, fluid forces dividing plate moves right, so that piston also moves right, when the fluid bore on the left of dividing plate is positioned at Fluid passageways half intracavity on right side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity on right side in the piston fluid passage in left side by fluid bore, it flow to the most again in the piston fluid passage on right side, thus reach the purpose of pressure release, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ；When the right-hand member pressure of adjusting flexible plunger type bidirection press relief valve is more than left end pressure, owing to the pressure in the piston fluid passage on the right side of dividing plate is more than the pressure in the piston fluid passage on the left of dividing plate, fluid forces dividing plate is moved to the left, so that piston is also moved to the left, when the fluid bore on the right side of dividing plate is positioned at Fluid passageways half intracavity in left side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity in left side in the piston fluid passage on right side by fluid bore, it flow to the most again in the piston fluid passage in left side, thus reach the purpose of pressure release, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ.
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that the outer end inner wall of inner housing (702) is provided with connection screw thread.
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that shell body (701) the place hollow out of adjusting nut (706) front and rear surfaces, the outer surface of adjusting nut (706) is provided with graduation mark.
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that the internal diameter separating ring flat-plate (701.3) is consistent with the internal diameter of shell body fluid passage (701.1).
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that the external diameter of spring (704) mates with the internal diameter of shell body fluid passage (701.1).
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that described fluid bore (703.3) is circular layout on piston shell (703.1).
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that the fluid bore (703.3) of the every side of dividing plate (703.2) is provided with multi-turn.
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that the lateral separation between the fluid bore (703.3) of the fluid bore (703.3) of high order end to low order end is not more than the lateral separation in Fluid passageways half chamber.
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterised in that described piston (703). two ends, left and right be provided with the step (703.4) coordinated with spring (704).
- The method of work of a kind of adjusting flexible plunger type bidirection press relief valve the most according to claim 1, it is characterized in that being provided with between the inner segment outer wall of regulating block (705) and shell body (701) inner seal ring (708), between outer section inwall inner housing (702) of regulating block (705), be provided with exterior seal ring (709).
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| CN201610512489.XA CN105937512B (en) | 2016-06-30 | 2016-06-30 | The method of work of adjusting flexible plunger type bidirection press relief valve |
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| CN201610512489.XA CN105937512B (en) | 2016-06-30 | 2016-06-30 | The method of work of adjusting flexible plunger type bidirection press relief valve |
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| CN105937512A true CN105937512A (en) | 2016-09-14 |
| CN105937512B CN105937512B (en) | 2017-09-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612692A (en) * | 2018-05-14 | 2018-10-02 | 江苏理工学院 | Dual spring pressure compensation speed governing valve |
| CN108869418A (en) * | 2018-07-12 | 2018-11-23 | 中航飞机起落架有限责任公司 | A kind of undercarriage turning system bidirectional safe integrated control valve |
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| CN2233016Y (en) * | 1995-12-01 | 1996-08-14 | 涿州石油物探绿茵实业有限公司 | Two-way pressure valve |
| EP1930636A2 (en) * | 2006-12-08 | 2008-06-11 | Honeywell International, Inc. | Bi-directional positive/negative pressure relief valve |
| CN203272916U (en) * | 2013-05-23 | 2013-11-06 | 张进龙 | Bidirectional drainage stopping valve |
| CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
| CN203940063U (en) * | 2014-06-13 | 2014-11-12 | 陕西飞机工业（集团）有限公司 | A kind of aircraft fuel system adjustable bidirectional Safety valve |
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2016
- 2016-06-30 CN CN201610512489.XA patent/CN105937512B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994003746A1 (en) * | 1992-08-03 | 1994-02-17 | Vernay Laboratories, Inc. | Bi-directional vent and overpressure relief valve |
| CN2233016Y (en) * | 1995-12-01 | 1996-08-14 | 涿州石油物探绿茵实业有限公司 | Two-way pressure valve |
| EP1930636A2 (en) * | 2006-12-08 | 2008-06-11 | Honeywell International, Inc. | Bi-directional positive/negative pressure relief valve |
| CN203272916U (en) * | 2013-05-23 | 2013-11-06 | 张进龙 | Bidirectional drainage stopping valve |
| CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612692A (en) * | 2018-05-14 | 2018-10-02 | 江苏理工学院 | Dual spring pressure compensation speed governing valve |
| CN108869418A (en) * | 2018-07-12 | 2018-11-23 | 中航飞机起落架有限责任公司 | A kind of undercarriage turning system bidirectional safe integrated control valve |
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| CN105937512B (en) | 2017-09-29 |
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