CN1009315B - Self-regulating pressure control valve - Google Patents
Self-regulating pressure control valveInfo
- Publication number
- CN1009315B CN1009315B CN87104851A CN87104851A CN1009315B CN 1009315 B CN1009315 B CN 1009315B CN 87104851 A CN87104851 A CN 87104851A CN 87104851 A CN87104851 A CN 87104851A CN 1009315 B CN1009315 B CN 1009315B
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- China
- Prior art keywords
- pressure
- controlled
- self
- voltage regulation
- set pressure
- Prior art date
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 230000001276 controlling effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 16
- 230000006837 decompression Effects 0.000 description 6
- 230000009466 transformation Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
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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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F3/00—Optical logic elements; Optical bistable devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/128—Modulators
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
- G02F1/0123—Circuits for the control or stabilisation of the bias voltage, e.g. automatic bias control [ABC] feedback loops
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
- G02F1/161—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2086—Control of fluid pressure characterised by the use of electric means without direct action of electric energy on the controlling means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S359/00—Optical: systems and elements
- Y10S359/90—Methods
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Control Of Fluid Pressure (AREA)
- Fluid-Pressure Circuits (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Control Of Transmission Device (AREA)
- Vehicle Body Suspensions (AREA)
- Braking Systems And Boosters (AREA)
Abstract
A self-regulating pressure control valve, similar to a self-regulating pressure reducing valve, mainly comprises a pressure control valve, a pressure regulating component, a driving component for driving the pressure regulating component, a control component for controlling the operation of the driving component, and a pressure setting component for setting a set pressure. The pressure adjusting position of the pressure adjusting member of the pressure adjusting part is adjusted according to a predetermined functional relationship between the pressure adjusting position of the pressure adjusting member and the controlled pressure so that the pressure adjusting member is just at a position where the controlled pressure is adjusted to the set pressure. The self-regulated pressure control valve can control the controlled pressure at a high reaction rate.
Description
The present invention relates to a kind of self-regulated presure control valve, it can be controlled second pressure (being the pressure of coupled control system) and be on the predetermined set pressure; It according to detect by pressure-detecting device, the control signal corresponding with the flowing pressure of control system, the self-regulated realization that imposes a condition by pressure.
Applicant of the present invention is to recommend a kind of automatic decompression diaphragm valve in the 59-207779 in Japanese patent application No..This automatic decompression diaphragm valve comprises decompression diaphragm valve parts, and one has the voltage regulation part of a pressure spring; One handles the driving mechanism of voltage regulation part, with a control assembly, this control assembly exceeds one at the pressure divergence of second pressure (being Be Controlled pressure) that detects from a goal pressure predetermined can provide a control signal to remove to drive driving mechanism during with reference to deviation, thereby makes pressure divergence drop to zero.
This automatic decompression diaphragm valve can carry out stable decompression running, can make second pressure stability by mechanical effect when the pressure divergence of second pressure is under the reference pressure divergence.Yet because automatically the decompression diaphragm valve be to adjust second pressure according to the comparative result between the pressure divergence of pressure divergence that detects and reference, it will be changed long time and just can make second pressure stability on predetermined set pressure thus.
Therefore an object of the present invention is to provide a kind of self-regulated presure control valve, it can adjust to predetermined set value with second pressure soon.
The present invention has utilized the funtcional relationship between second pressure of the position of regulator and self-regulated reduction valve; This reduction valve comprises regulator and is used for driving the drive unit of regulator.
In order to realize purpose of the present invention, the invention provides a self-regulated presure control valve, it comprises: a pressure control valve member, one is used for detecting the detection part of second pressure, adjust the voltage regulation part of second pressure of pressure control valve member, drive the driver part of voltage regulation part, the control assembly of controlling and driving parts, and the pressure setting part of setting a set pressure.
Control assembly comes the controlling and driving parts according to the position of voltage regulation part with corresponding to the funtcional relationship between second pressure of Be Controlled pressure, thereby adjusts second pressure to the pressure of wanting, i.e. set pressure.
Realizing that control assembly comprises that one has arithmetical unit, the computing machine of corrector and memory in a kind of method of the present invention.
According to the present invention, after optional set pressure is provided by pressure setting part, the catanator of control assembly calculates the appropriate location of the pressure regulating member on the voltage regulation part according to the funtcional relationship between second pressure and the pressure regulating member position, control assembly provides a control signal to driver part then, so that the position of adjusting pressure regulating member is to the appropriate location that calculates, thereby make second pressure be adjusted to set pressure.
After second pressure was adjusted to set pressure, the self-adjusting valve door part began to carry out mechanical pressure control running with usual way.When second pressure needs further accurate control, one second pressure-detecting device preferably is provided, detect second pressure continuously or periodically, and remove the controlling and driving parts according to the correction signal that the various computing between second pressure of set pressure and detection goes out, thereby control second pressure continuously or periodically by the catanator of control assembly.
Like this, self-regulated presure control valve can respond the variation of second pressure soon, and adjusts second pressure (being Be Controlled pressure) immediately to set pressure (being goal pressure).
Above-mentioned purpose, characteristics and advantage with other of the present invention will become clearer by the embodiment description taken together with the accompanying drawings of recommending below.
Fig. 1 is the self-regulated presure control valve partial sectional view, has shown voltage regulation part especially;
Fig. 2 is the pressure regulating member of an expression voltage regulation part and the chart between the controlled pressure;
Fig. 3 is the block diagram of self-regulated presure control valve first embodiment of the present invention;
Fig. 4 is the block diagram of self-regulated presure control valve second embodiment of the present invention;
Fig. 5 is the block diagram of self-regulated presure control valve the 3rd embodiment of the present invention;
First embodiment (Fig. 1 and 2);
First embodiment is used for reduction valve 1 to the present invention.Referring to Fig. 1, reduction valve 1 has a pressure spring 2, and an end of spring 2 is placed on the spring base 3, and the other end is placed on the spring base 6.Spring base 3 and 6 is pressing barrier film 4 respectively and is pressing the lower end of pressure regulation leading screw 8 by ball 7, as shown in Figure 1.Second pressure of reduction valve 1 is present in 5 li of the pressure chambers that covered by barrier film 4.Pressure that the pressure spring that is added in above it 2 produces and the pressure ratio between second pressure that is present in 5 li of pressure chambers are depended in the position of barrier film.Because the control action of 4 pairs second pressure of barrier film is well-known.Here just no longer narrated.
External thread 9 is arranged at the bottom of pressure regulation leading screw 8.Pressure regulation leading screw 8 threaded lower ends are screwed into the fixed component that its core has internal thread 10.As shown in Figure 1, an axial hole is arranged at the top of pressure regulation leading screw 8.The retainer 11 of clamping ball 12 embeds the axial hole of pressure regulation leading screw 8.Splined shaft 13 be installed in the axial hole of pressure regulation leading screw 8 and with ball 12 engagements.Splined shaft 13 is connected with the output shaft of motor 15 by reduction gearing 14.
Pressure regulation leading screw 8 meshes with the internal thread 10 of fixed component, when the output shaft of motor 15 during to a direction rotation, pressure regulation leading screw 8 rotates by splined shaft 13, and moves down, pressure spring 2 is compressed by pressure regulation leading screw 8 by spring base 6 thus, thereby has increased set pressure.On the contrary, when the output shaft of motor 15 when other direction rotates, pressure regulation leading screw 8 is also to the other direction rotation, and moves up, the compression of pressure spring 2 is loosened thus, and set pressure is reduced.
The lower end of pressure regulation leading screw 8 from predetermined reference position (in this position, the lower end of pressure regulation leading screw 8 does not contact with spring base 6 by ball 7 under by compression the situation at pressure spring 2) will be called as the distance that " lead screw position " move after one and be directly proportional with the compression sizes of pressure spring 2, come set pressure thus, as shown in Figure 2.In fact the present invention has utilized the lower end displacement of pressure regulation leading screw 8 and the relation between the set pressure.
Referring to the first embodiment of the present invention shown in Figure 3, self-regulated presure control valve comprises a reduction valve 1, one contains the voltage regulation part 50 of pressure regulation leading screw 8, one comprises the driver part 52 of motor 15, one pressure detecting part, 54, one signal transformation parts 55, comprise the control assembly 56 of a computing machine, this calculates the lead screw position data of the funtcional relationship between function storage representation lead screw position and the Be Controlled pressure, and a pressure setting part 58.In first embodiment, motor 15 is step motor.
The pressure transducer of pressure detecting part 54 detects second pressure of reduction valve 1, and exports one and represent that the pressure signal of second pressure is to signal transformation part 55.Then, signal transformation part 55 is transformed into the corresponding digital pressure signal to pressure signal, it is defeated by the computing machine of control assembly 56 again.
Set pressure signal according to an expression set pressure of accepting from pressure setting part 58, computing machine is according to the lead screw position data that before were stored in the inside, for pressure regulation leading screw 8 calculates lead screw position corresponding to set pressure, export a pulse signal then and give driver part 52 corresponding to the lead screw position that calculates, make it drive voltage regulation part 50, pressure regulation leading screw 8 is moved to the lead screw position that calculates; Therefore, second pressure of reduction valve 1 is adjusted to set pressure at once.The anglec of rotation of step motor 15 output shafts is directly proportional with the umber of pulse of pulse signal, so the position of pressure regulation leading screw 8 is corresponding to the umber of pulse of pulse signal.
For example, when set pressure is 5 kg/cm, deviation with reference to scope ± 0.1 kg/cm, and detected second pressure is 4.5 kg/cm, then computing machine goes out a correction distance corresponding to 0.5 kg/cm pressure divergence according to the lead screw position data computation, and removes correspondingly mobile pressure regulation leading screw 8.
In more advanced pressure control, the numerical data of funtcional relationship between expression set pressure and the lead screw position, for example set pressure and lead screw position of representing by 1 kg/cm set pressure at interval and the predetermined mutual relationship between the corresponding lead screw position, be stored in the form of computing machine memory, and control operation and correct operation are carried out according to the numerical data that is come by predetermined mutual relationship.Timing, the numerical data of lead screw position is replaced by the correction data of the new lead screw position of expression before the expression, and upgrades the form of memory.
For example, suppose that lead screw position S4 in the memory that is stored in computing machine and S5 corresponding to set pressure, more particularly, correspond respectively to second pressure 4 and 5 kg/cm of setting.When arranging valve in set pressure 5 kg/cm by the pressure setting device, motor driven pressure regulation leading screw is to corresponding lead screw position S5.When deviation with reference to scope be ± during 0.1 kg/cm, if the second actual pressure with respect to the deviation of set pressure deviation with reference to scope in, then motor keeps motionless.
Suppose that set pressure is 5 kg/cm, deviation with reference to scope is ± 0.1 kg/cm, and the second present pressure is 4.5 kg/cm.Then computing machine utilizes formula:
△S＝（S5-S4）×0.5/（5-4）
Can calculate corresponding to deviation: the lead screw position of 5.0-4.5=0.5 kg/cm is proofreaied and correct amount of movement △ S.Then, proofread and correct amount of movement △ S according to the lead screw position that calculates, motor driven pressure regulation leading screw increases to 5.0 kg/cm with second pressure from 4.5 kg/cm.And the original lead screw position S5 that is stored in the memory is replaced by S5+ △ S.
Move from original lead screw position with after changing set pressure at the pressure regulation leading screw, when same set pressure is defeated by control assembly, so that when controlled pressure is transferred to same goal pressure, COMPUTER CALCULATION goes out actual lead screw position, and existing side by side soon, second pressure transfers to goal pressure.
As being, the control pressurer system of self-regulated presure control valve constitutes, control pressurer system just can produce ideal control information, even when the operating condition of reduction valve was to change, self-regulated presure control valve just can turn round with very fast reaction velocity like this.
Second embodiment (Fig. 1 and 4):
Second embodiment structure with use basic identical with first embodiment.Second embodiment uses a rotational potentiometer to detect the position of pressure regulation leading screw 8.And use a reversible motor to replace step motor to drive the pressure regulation leading screw.
Referring to Fig. 4, second embodiment comprises reduction valve 1, voltage regulation part 50, driver part 52, pressure detector 54, signal transformation part 55, control assembly 56, pressure setting part 58, reduction gearing 14 and a rotational potentiometer 20.
Referring to Fig. 1, rotational potentiometer 20 is interlocked effectively with a gear (not shown) in the reduction gearing 14.The output voltage of potentiometer 20 and pressure regulation leading screw 8 are that the distance that lead screw position moves at the beginning is directly proportional from reference position (in this position, the pressure regulation leading screw engages with pressure spring 2 under the not compressed situation of pressure spring 2).Therefore, the output voltage of rotational potentiometer 20 is represented the pressure regulation lead screw position, thereby has also represented second pressure, i.e. Be Controlled pressure.In second embodiment, be stored in the computing machine by the lead screw position data of funtcional relationship representative between the lead screw position of the output voltage representative of rotational potentiometer 20 and second pressure.
The 3rd embodiment (Fig. 5):
Referring to Fig. 5, the 3rd embodiment comprises reduction valve 1, reduction gearing 14, rotational potentiometer 20, voltage regulation part 50, driver part 52, control assembly 70 and have the pressure setting part 72 of a potentiometer.
Though the present invention has carried out describing to a certain degree according to the embodiment that recommends, and should be understood that for a person skilled in the art, under the situation that does not depart from the scope of the present invention and conceive, can make many changes.
Claims (5)
1, a kind of self-regulated presure control valve comprises:
-pressure control valve;
-be used for setting the pressure setting part of set pressure;
-be used for adjusting the voltage regulation part of the Be Controlled pressure of described pressure control valve;
-be used for driving the driver part of described voltage regulation part;
-be used for controlling the control assembly of described driver part running,
It is characterized in that: the position of the set pressure that it is determined according to described pressure setting part and the pressure regulating member of described voltage regulation part and the funtcional relationship of being scheduled between the Be Controlled pressure are controlled the running of described driver part, thereby move pressure regulating member to a position of described voltage regulation part, make Be Controlled pressure adjust to set pressure.
2, self-regulated presure control valve according to claim 1, it is characterized in that, described control assembly comprises the computing machine of the control data of the position of pressure regulating member of the described voltage regulation part of a storage representation and the predetermined funtcional relationship between the Be Controlled pressure, computing machine goes out the position that described pressure regulation part should be located according to the set pressure calculated signals that described control data and pressure setting part provide, the position of described pressure regulating member is detected by the position detecting device just like potentiometer and so on, described control assembly is controlled the running of described driver part so that drive described voltage regulation part, and is identical until the signal of the position that the computing machine of the detection signal of described position detecting device and the described control assembly of expression comes out according to the calculated signals of control data and expression set pressure.
3, self-regulated presure control valve according to claim 1, it is characterized in that, described control assembly comprises the computing machine of the control data of the position of pressure regulating member of the described voltage regulation part of a storage representation and the predetermined funtcional relationship between the Be Controlled pressure, described driver part comprises a step motor, the set pressure calculated signals that the computing machine basis is provided by described pressure setting part goes out to have the pulse signal corresponding to the umber of pulse of described pressure regulating member Ying Chu position, output pulse signal is given step motor then, and Be Controlled pressure is adjusted to set pressure.
4, according to claim 2 or 3 described self-regulated presure control valves, it comprises that further one is used for detecting the Be Controlled pressure-detecting device of Be Controlled pressure, it is characterized in that, the detection signal that provides by described Be Controlled pressure-detecting device and constantly or periodically compare by described control assembly by the set pressure signal that described pressure setting part provides, to determine the deviation of Be Controlled pressure with respect to set pressure, if Be Controlled pressure exists noticeable deviation with respect to set pressure, computing machine is according to deviation and be stored in control data in the computing machine and calculate the correction distance that the pressure regulating member of described voltage regulation part moves from present position needs, thereby proofread and correct Be Controlled pressure, make Be Controlled pressure identical with set pressure.
5, self-regulated presure control valve according to claim 1, it is characterized in that, described control assembly is controlled described driver part, make its run to the set pressure signal that detects by potentiometer or similar described position detection component corresponding to the detection signal of the pressure regulating member position of described voltage regulation part and the expression set pressure that provides by potentiometer or similar described pressure setting part identical till.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP167255/86 | 1986-07-15 | ||
| JP61167255A JPS6320603A (en) | 1986-07-15 | 1986-07-15 | Automatic set reduction valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87104851A CN87104851A (en) | 1988-02-03 |
| CN1009315B true CN1009315B (en) | 1990-08-22 |
Family
ID=15846341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87104851A Expired CN1009315B (en) | 1986-07-15 | 1987-07-14 | Self-regulating pressure control valve |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS6320603A (en) |
| KR (1) | KR920008002B1 (en) |
| CN (1) | CN1009315B (en) |
| AU (1) | AU586570B2 (en) |
| BE (1) | BE1001187A5 (en) |
| CA (1) | CA1281609C (en) |
| CH (1) | CH677393A5 (en) |
| DE (2) | DE3723284A1 (en) |
| DK (1) | DK173181B1 (en) |
| ES (1) | ES2004643A6 (en) |
| FR (1) | FR2601748B1 (en) |
| GB (1) | GB2192737B (en) |
| GR (1) | GR871085B (en) |
| IT (1) | IT1222025B (en) |
| NL (1) | NL192353C (en) |
| NZ (1) | NZ220980A (en) |
| PH (1) | PH26990A (en) |
| PT (1) | PT85326B (en) |
| SE (1) | SE466321B (en) |
| ZA (1) | ZA875096B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| DE19524652A1 (en) * | 1995-07-06 | 1997-01-09 | Rexroth Mannesmann Gmbh | Electrohydraulic proportional pressure control valve for rotary machines - has stepping motor driving variable element of flow control orifice and includes inductive position sensing |
| US6138564A (en) * | 1995-10-27 | 2000-10-31 | Oce Printing Systems Gmbh | Means for regulating pressure in a pressure chamber |
| US6056008A (en) * | 1997-09-22 | 2000-05-02 | Fisher Controls International, Inc. | Intelligent pressure regulator |
| GB9804047D0 (en) | 1998-02-27 | 1998-04-22 | Normalair Garrett Ltd | Method of controlling a parameter |
| US8910657B2 (en) | 2007-09-06 | 2014-12-16 | Cnh Industrial America Llc | Electrically controlled pilot operated pressure regulator valve apparatus and method of operation of the same |
| CN102287549B (en) * | 2011-07-20 | 2012-10-03 | 安徽理工大学 | Combined switching valve |
| CN102720843B (en) * | 2012-06-04 | 2013-07-10 | 西安交通大学 | Large-diameter proportional pneumatic valve directly driven by alternating-current servo motor |
| CN102866713B (en) * | 2012-10-16 | 2015-03-25 | 深圳市安保科技有限公司 | Respiratory flow adjusting device and breathing machine |
| WO2015128690A1 (en) * | 2014-02-26 | 2015-09-03 | Zodiac Aerotechnics | Gas pressure reducer with electrically-powered master system |
| JP6707544B2 (en) * | 2014-12-23 | 2020-06-10 | アルフレッド ケルヒャー エスエー ウント コンパニー カーゲー | High pressure cleaning equipment |
| CN109114268A (en) * | 2018-10-17 | 2019-01-01 | 江西洪都航空工业集团有限责任公司 | A kind of overload-resistant electronics relief valve of undercarriage buffer |
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| CN110397582B (en) * | 2019-07-10 | 2020-11-27 | 大唐半导体科技有限公司 | Self-correction method and device for air compressor |
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| GB1197897A (en) * | 1966-08-26 | 1970-07-08 | Norris Systems Ltd | Improvements in or relating to Fluid Control Valves |
| US3596873A (en) * | 1968-12-04 | 1971-08-03 | Optical Coating Laboratory Inc | Valve assembly and servo system incorporating same |
| US3628129A (en) * | 1970-10-01 | 1971-12-14 | Gen Electric | Process controller including a rate circuit responsive solely to process variable signal changes |
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| DE2916172C2 (en) * | 1979-04-21 | 1983-08-18 | Karl 7298 Loßburg Hehl | Proportional valve for hydraulic systems |
| DE3046595A1 (en) * | 1980-12-11 | 1982-07-22 | G. Kromschröder AG, 4500 Osnabrück | Regulator for flow control valve - has solenoid actuator with displacement feedback to input to poppet valve to control feed flow |
| FR2512977A1 (en) * | 1981-09-11 | 1983-03-18 | Thomson Csf | ELECTROHYDRAULIC SERVOVALVE DEVICE |
| US4585030A (en) * | 1984-04-06 | 1986-04-29 | Borg-Warner Corporation | Proportional hydraulic solenoid controller |
| JPS6184715A (en) * | 1984-10-02 | 1986-04-30 | Tlv Co Ltd | Automatic setting reducing valve |
-
1986
- 1986-07-15 JP JP61167255A patent/JPS6320603A/en active Pending
-
1987
- 1987-06-26 CA CA000540670A patent/CA1281609C/en not_active Expired - Lifetime
- 1987-07-06 AU AU75265/87A patent/AU586570B2/en not_active Ceased
- 1987-07-07 NZ NZ220980A patent/NZ220980A/en unknown
- 1987-07-09 DK DK198703539A patent/DK173181B1/en not_active IP Right Cessation
- 1987-07-10 GR GR871085A patent/GR871085B/en unknown
- 1987-07-10 SE SE8702833A patent/SE466321B/en not_active IP Right Cessation
- 1987-07-13 BE BE8700767A patent/BE1001187A5/en not_active IP Right Cessation
- 1987-07-13 ZA ZA875096A patent/ZA875096B/xx unknown
- 1987-07-14 NL NL8701652A patent/NL192353C/en not_active IP Right Cessation
- 1987-07-14 IT IT21269/87A patent/IT1222025B/en active
- 1987-07-14 PT PT85326A patent/PT85326B/en not_active IP Right Cessation
- 1987-07-14 CN CN87104851A patent/CN1009315B/en not_active Expired
- 1987-07-14 GB GB8716496A patent/GB2192737B/en not_active Expired - Lifetime
- 1987-07-15 KR KR1019870007658A patent/KR920008002B1/en not_active Expired
- 1987-07-15 CH CH2697/87A patent/CH677393A5/de not_active IP Right Cessation
- 1987-07-15 ES ES8702082A patent/ES2004643A6/en not_active Expired
- 1987-07-15 PH PH35540A patent/PH26990A/en unknown
- 1987-07-15 DE DE19873723284 patent/DE3723284A1/en not_active Ceased
- 1987-07-15 DE DE8709700U patent/DE8709700U1/en not_active Expired
- 1987-07-15 FR FR878709945A patent/FR2601748B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU7526587A (en) | 1988-01-21 |
| SE8702833L (en) | 1988-01-16 |
| NL192353C (en) | 1997-06-04 |
| KR920008002B1 (en) | 1992-09-21 |
| NL192353B (en) | 1997-02-03 |
| FR2601748B1 (en) | 1990-03-30 |
| PH26990A (en) | 1992-12-28 |
| PT85326B (en) | 1995-05-04 |
| CN87104851A (en) | 1988-02-03 |
| NZ220980A (en) | 1990-11-27 |
| AU586570B2 (en) | 1989-07-13 |
| DE8709700U1 (en) | 1988-01-21 |
| KR880001952A (en) | 1988-04-28 |
| ZA875096B (en) | 1988-01-13 |
| GB8716496D0 (en) | 1987-08-19 |
| DK353987A (en) | 1988-01-16 |
| DK353987D0 (en) | 1987-07-09 |
| NL8701652A (en) | 1988-02-01 |
| DK173181B1 (en) | 2000-03-06 |
| FR2601748A1 (en) | 1988-01-22 |
| CH677393A5 (en) | 1991-05-15 |
| IT1222025B (en) | 1990-08-31 |
| SE8702833D0 (en) | 1987-07-10 |
| IT8721269A0 (en) | 1987-07-14 |
| PT85326A (en) | 1988-07-29 |
| CA1281609C (en) | 1991-03-19 |
| GR871085B (en) | 1987-10-22 |
| BE1001187A5 (en) | 1989-08-08 |
| GB2192737A (en) | 1988-01-20 |
| ES2004643A6 (en) | 1989-01-16 |
| JPS6320603A (en) | 1988-01-28 |
| DE3723284A1 (en) | 1988-01-21 |
| SE466321B (en) | 1992-01-27 |
| GB2192737B (en) | 1990-11-21 |
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