CN109058537A - The quick pressure maintaining of energy simultaneously can follow setting pressure to adjust the regulator of activation threshold value - Google Patents
The quick pressure maintaining of energy simultaneously can follow setting pressure to adjust the regulator of activation threshold value Download PDFInfo
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- CN109058537A CN109058537A CN201811150878.8A CN201811150878A CN109058537A CN 109058537 A CN109058537 A CN 109058537A CN 201811150878 A CN201811150878 A CN 201811150878A CN 109058537 A CN109058537 A CN 109058537A
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- pressure
- threshold value
- setting
- regulating cavity
- electromagnetic valve
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- 238000011217 control strategy Methods 0.000 claims description 3
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- 238000000034 method Methods 0.000 abstract description 15
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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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
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
-
- 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
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
Abstract
The invention belongs to Pressure Control Technology fields, it is related to a kind of regulator of air supply system distribution pressure regulation, its characteristic is that the pressure adjustment of air supply system can be fast implemented and keeps, and the pressure maintaining activation threshold value of air supply system can follow set target output pressure to make association adjustment.On the one hand, tonifying Qi and discouraged executive component using solenoid valve as pressure regulator valve, the deadline for shortening pressure regulation process by the fast response characteristic of solenoid valve takes this quick stabilization and pressure maintaining of realizing air supply system distribution pressure, to improve the working efficiency of regulator；On the other hand, it is associated with set output pressure numerical value using tracking mode pressure maintaining activation threshold value, takes this to make the activation threshold value of solenoid valve that there is amplitude to follow the pressure maintaining section of property, to widen the range that regulator adapts to air supply system pressure oscillation.Compared with prior art, apparatus of the present invention have faster more stable pressure regulation process, and adapt to more complicated use compression ring border.
Description
Technical field:
The invention belongs to pressure control field, it is related to gas transmission pressure regulation and the pressure retaining technology of a kind of air supply system, specifically
The holding of air supply system pressure can be fast implemented and set constant-pressure association can be followed to change air supply system pressure maintaining touching by being related to one kind
Send out the regulator of threshold value.
Background technique:
It usually needs to provide the output pressure of various different stalls in many occasions using pressure working medium, that is, needs root
Implement to regulate and control to obtain the working medium of different output pressures, such as the air compression towards finishing purposes according to manipulating object and task
Machine must just select different gas pressures to cope with the different demands of nailing operation, spray painting operation and plastic squeeze operation etc., and compare
As compression and also the same needs of conveying of natural gas and other special gas are adjusted using object according to different and distribute it
The operating pressure of output, all this kind is required to a set of adjusting dress that can be set output pressure and can be subject to holding pressure control to it
It sets.It is well known that the different pressures output numerical value in order to realize above-mentioned apparatus, the most economical also widespread practice is just the most simultaneously
It is to be regulated and controled using pressure regulator valve and obtained.So pressure-regulating valve (referred to as pressure regulator valve) just becomes respectively naturally
Kind of Fluid pressure use occasion or the indispensable standard configuration of its derived product.Also therefore, pressure-regulating valve obtains extremely wide
Application.It manually goes directly to manipulate and realize however, mechanical pressure regulator valve its pressure setting means instantly relies primarily on, so
All there are biggish defects in terms of operating pleasant property and regulation accuracy.
In consideration of it, Chinese patent application CN201710946243 and CN201721315127 provide one kind can electronic settings
With the pressure regulator valve of electronic realization and equipped with the compressor of the pressure regulator valve, they use structure and the side of electronic settings and electronic realization
Formula, by be electronically entered, the mode of electronical display and electric drive goes setting, each pressure regulation process of monitoring and regulation, take this
It can get the stability, consistency and repeatability of target output pressure, to respond and be precisely controlled in the quick of pressure regulation process
Aspect is haveed a qualitative leap compared to tradition machinery regulator.
However, electronic pressure regulation provided by above-mentioned Chinese patent application CN201710946243 and CN201721315127
Valve, they still have the place for being worth further improving, are in particular in: 1) their pressure controlling executing agency uses
Be motor, execute pressure maintaining instruction when motor need to operate long period of time can drive aeration valve or lose heart
Valve reaches effective actuation, in other words the regulation process of the pressure regulator valve take time it is longer in other words its regulate and control execution movement complete
Process is slower, so that the efficiency of regulation operation is lower, it will be appreciated that in actual operation, slave device or tool
Continuous use, intermittently using and replacement operation object etc. be required to convert, reach and possess in time to export different working medium
Pressure, it is clear that the regulator based on motor drive is not able to satisfy the requirement of above-mentioned workplace；2) their pressure setting
Belong to typical " point control type " shaping modes with regulation, the defect of the mode is the pressure maintaining threshold value for triggering pressure regulator valve starting with closing
Actually extremely narrow " dotted " situation, in other words pressure regulator valve can be made accordingly when reaching setting numerical pressure
Pressure release or pressure maintaining movement.It is well known that the pressure in system often exists since volume inertia, transmitting inertia etc. make so
Lag is procrastinateed and is delayed in certain fluctuation, and above-mentioned dotted activation threshold value condition (is echoed due to high pressure activation threshold value and stops mending
Gas starts to lose heart) and low pressure activation threshold value (echo and start tonifying Qi or stop losing heart) is relatively, then will lead to regulator
Frequent starting and closing (as relay is in the presence of being attracted opening repeatedly), its pressure maintaining section is very narrow in other words
It is narrow, also this means that its modulating properties extreme sensitivity, therefore easily causes the damage of regulator and destroy air supply system
Functional reliability.
To sum up, its regulation response characteristic of the pressure regulator valve of the prior art and regulation operational efficiency are not met by multiple target operating condition
Requirement, therefore there is also have to be worth improved place.
Summary of the invention:
It is excessively slow excessively rigid with inefficient and pressure maintaining triggering that there are pressure maintaining implementation procedures in order to overcome existing pressure regulator valve
And sensitive deficiency, the present invention propose it is a kind of quickly pressure maintaining and the regulator of setting pressure change activation threshold value can be followed,
Purpose is: effectively improving the operation execution efficiency of pressure regulation process, enables the use for quickly reaching and stablizing air supply system
Pressure, to widen the work accommodation range of regulator；In addition the use pressure that can track air supply system setting is also realized
It is associated with the threshold value for changing pressure maintaining triggering, makes HVT high voltage threshold and low pressure threshold that there is following feature and obtain the pressure maintaining of certain amplitude
Section, to widen the ability that regulator adapts to air supply system pressure oscillation.
The purpose of the present invention is in this way to be achieved: a kind of quickly pressure maintaining and setting pressure to be followed to touch to adjust
The regulator of threshold value is sent out, it includes a valve body, at least one input interface and at least is offered on the valve body
One output interface, a while pressure regulating cavity is additionally provided on the valve body, the input interface and output interface with
Pressure regulating cavity connection, it is characterised in that: be provided with bleed passage, which is connected to pressure regulating cavity；It is provided with pressurization electromagnetism
Valve and vacuum solenoid valve, the boost electromagnetic valve echo input interface and arrange and can control the on off operating mode of the input interface, institute
Vacuum solenoid valve concord bleed passage is stated to arrange and can control the on off operating mode of the bleed passage；It is additionally provided with a pressure tune
Section control unit and at least one can experience the pressure sensing passageway of pressure information in pressure regulating cavity, the pressure regulation unit with
Pressure sensing passageway connection simultaneously can obtain the gas pressure information in pressure regulating cavity via the pressure sensing passageway, and pressure regulation unit can be set
Determine the target value of output pressure；The pressure regulation unit is adjusted using mechanical regulation mode and sets output pressure
Target value, which includes that pressure setting knob, a pressure indicate contact pilotage, a high pressure threshold
Value triggering connector and a low pressure threshold trigger connector, are provided on pressure setting knob and set as output pressure target value
Surely the mark recognized, HVT high voltage threshold's triggering connector and low pressure threshold triggering connector can follow pressure setting knob to make
Synchronize displacement in the same direction, wherein HVT high voltage threshold triggering connector and low pressure threshold triggering connector between there are physical space interval,
For the mark on HVT high voltage threshold's triggering connector and pressure setting knob there is also there is physical space interval, pressure indicates contact pilotage cloth simultaneously
Office triggers between connector and low pressure threshold triggering connector in HVT high voltage threshold and pressure instruction contact pilotage can receive in pressure regulating cavity
Air pressure driving and generate displacement movement, one end of pressure instruction contact pilotage and the A electrode connection of power supply, the decompression electromagnetism
One input terminal of valve is connect and the B electrode of another input terminal of vacuum solenoid valve and power supply company with HVT high voltage threshold's triggering connector
It connects, an input terminal of the boost electromagnetic valve is connect and another input terminal of boost electromagnetic valve with low pressure threshold triggering connector
It is connect with the B electrode of power supply.
Further, it is sliding that the conduction being held on always with low pressure threshold triggering connector is provided on above-mentioned pressure setting knob
Item, the conduction draw runner are laid out the low-pressure side in the mark and are identified as its high-voltage end boundary with this.
Further, above-mentioned conductive draw runner has slide-changing resistor characteristic, while the boost electromagnetic valve uses Linear Control
Mode is simultaneously associated with linear regulation relationship with the presence of conductive draw runner.
A kind of quickly pressure maintaining and to follow and set pressure to adjust the regulator of activation threshold value, it includes a valve
Pedestal offers at least one input interface and at least one output interface on the valve body, while on the valve body also
It is provided with a pressure regulating cavity, the input interface and output interface are connected to the pressure regulating cavity, it is characterised in that: are provided with and are let out
Gas channel, the bleed passage are connected to pressure regulating cavity；It is provided with boost electromagnetic valve and vacuum solenoid valve, the boost electromagnetic valve echoes
The on off operating mode of the input interface is arranged and be can control to input interface, and the vacuum solenoid valve concord bleed passage arrangement is simultaneously controllable
Make the on off operating mode of the bleed passage；Pressure regulating cavity can be experienced by being additionally provided with a pressure regulation unit and at least one
The pressure sensing passageway of interior pressure information, the pressure regulation unit and pressure sensing passageway connection can simultaneously be obtained via the pressure sensing passageway
Gas pressure information in pressure regulating cavity, pressure regulation unit can set the target value of output pressure；The pressure is adjusted
Control unit adjusts by the way of electronic-controlled and sets output pressure numerical value, which includes one
A central controller, an A pressure sensor and a B pressure sensor, wherein A pressure sensor is mounted on pressure sensing passageway
And the gas pressure information in acquired pressure regulating cavity can be passed to central controller, B pressure sensor is mounted on valve seat
On body or be mounted on the epigyny device of valve body, B pressure sensor can pick up pressure regulating cavity upstream end gas pressure letter
It ceases and central controller can be passed it to；The central controller can set target high-pressure threshold value and target low-pressure threshold
Value, the target high-pressure threshold value and target low-pressure threshold value exist with setting output pressure numerical value is associated with servo-actuated relationship, wherein mesh
It marks HVT high voltage threshold and is greater than setting output pressure numerical value, target low-pressure threshold value less than setting output pressure numerical value；Central controller energy
Enough by operation decision sending execute instruction accordingly to boost electromagnetic valve and vacuum solenoid valve, and take this regulation input interface and
Bleed passage shows the situation opened or be truncated accordingly.
Further, the control strategy of above-mentioned central controller is, be greater than when the gas pressure numerical value in pressure regulating cavity or
Vacuum solenoid valve opens bleed passage when equal to target high-pressure threshold value, when the gas pressure numerical value in pressure regulating cavity is less than or equal to
Boost electromagnetic valve opens input interface when setting output pressure numerical value.
Further, boost electromagnetic valve can be associatedly triggered when above-mentioned vacuum solenoid valve opens the behavior of bleed passage
And it is allowed to generate the reset action of truncation input interface.
Further, above-mentioned vacuum solenoid valve uses Impulsive control mode.
Above-mentioned boost electromagnetic valve uses linear mode control.
Its aperture action policy of above-mentioned boost electromagnetic valve are as follows: 1. defeated greater than setting when the gas pressure numerical value in pressure regulating cavity
Out when pressure value, the aperture amplitude of boost electromagnetic valve is zero；2. when the gas pressure numerical value in pressure regulating cavity is in target low-pressure
When between threshold value and setting output pressure numerical value, aperture amplitude=100% × (setting output pressure numerical value-of boost electromagnetic valve
Gas pressure numerical value in pressure regulating cavity)/(setting output pressure numerical value-target low-pressure threshold value)；3. when the gas pressure in pressure regulating cavity
When power numerical value is equal to or less than target low-pressure threshold value, the aperture amplitude of boost electromagnetic valve is a hundred percent standard-sized sheet.
Above-mentioned boost electromagnetic valve is provided with power-assisted gas chamber.
Above-mentioned its inner cavity of power-assisted gas chamber is connected with the epigyny device of input interface or/and regulator.
The outstanding advantages that the present invention has compared with prior art are: by using solenoid valve as pressure regulator valve tonifying Qi with
Discouraged executive component is improved the operation execution efficiency of pressure regulation process using the fast response characteristic of solenoid valve, is allowed to quick
Reach simultaneously stable output pressure, to widen the work accommodation range of regulator；Additionally by the pressure maintaining touching of setting tracing type
Hair threshode devices carry out correlation pressure setting numerical value, and the section that the HVT high voltage threshold and low pressure threshold for limiting it are constituted has amplitude
Following feature takes this pressure maintaining section for obtaining certain amplitude, to widen the energy that regulator adapts to air supply system pressure oscillation
Power.
Detailed description of the invention:
Fig. 1 is the quick pressure maintaining of energy of the invention and can follow setting pressure to adjust its pressure tune of the regulator of activation threshold value
Section control unit adjusts using mechanical regulation mode and sets the structural principle layout signal of one embodiment of output pressure
Figure；
Fig. 2 is the quick pressure maintaining of energy of the invention and can follow setting pressure to adjust its pressure tune of the regulator of activation threshold value
Section control unit adjusts using electronic-controlled mode and sets the structural principle layout signal of one embodiment of output pressure
Figure；
Fig. 3 is the quick pressure maintaining of energy of the invention and can follow setting pressure to adjust its pressure tune of the regulator of activation threshold value
Output pressure is adjusted and set using electronic-controlled mode for section control unit and its boost electromagnetic valve is provided with power-assisted gas chamber
The structural principle schematic layout pattern of one embodiment.
Specific embodiment:
With specific embodiment, the invention will be further described below, referring to Fig. 1-3:
A kind of quickly pressure maintaining and to follow and set pressure to adjust the regulator of activation threshold value, it includes a valve
Pedestal 1 offers at least one input interface 2 and at least one output interface 3 on the valve body 1, while in valve body 1
On be additionally provided with a pressure regulating cavity 4, the input interface 2 and output interface 3 are connected with the pressure regulating cavity 4 (referring to figure
1)；Herein, epigyny device or system such as compressor (not shown) or gas storage of the input interface 2 to receive regulator
High pressure gas working medium provided by tank 5 (as shown in Figure 1) etc., and output interface 3 is then used to the slave device to regulator
Such as the gas working medium of the certain goal pressure of output (as shown in Figure 1) of tool 6, wherein the goal pressure of institute's output gas is in pressure regulating cavity
Modulation is completed in 4；Characteristic of the invention is: being provided with bleed passage 7, which is connected to pressure regulating cavity 4；Setting
There are boost electromagnetic valve 8 and vacuum solenoid valve 9, the boost electromagnetic valve 8 echoes input interface 2 and arranges and can control the input
The on off operating mode of interface 2, the vacuum solenoid valve 9 echo the on-off that bleed passage 7 is arranged and can control the bleed passage 7
State；The sense of pressure information in pressure regulating cavity 4 can be experienced by being additionally provided with a pressure regulation unit 10 and at least one
Pressure passageway 11 (as shown in Figure 1), the pressure regulation unit 10 and 11 connection of pressure sensing passageway simultaneously can be via the pressure sensing passageways
11 obtain the gas pressure information in pressure regulating cavity 4, and pressure regulation unit 10 can be set as needed the mesh of output pressure
Mark numerical value；The pressure regulation unit 10 adjusts using mechanical regulation mode and sets the target value of output pressure,
The pressure regulation unit 10 includes that pressure setting knob 10a, a pressure indicate contact pilotage 10b, a HVT high voltage threshold
It triggers connector 10c and a low pressure threshold triggers connector 10d, be provided on pressure setting knob 10a as output pressure mesh
Mark the mark 12 of numerical value setting identification, the described HVT high voltage threshold triggering connector 10c and low pressure threshold triggering connector 10d can be with
Displacement in the same direction is synchronized with pressure setting knob 10a, wherein HVT high voltage threshold triggering connector 10c and low pressure threshold trigger connector
There are the marks 12 on physical space interval while HVT high voltage threshold triggering connector 10c and pressure setting knob 10a between 10d
There is also there is a physical space interval, above-mentioned physical space interval may be constructed the pressure regulation pressure maintaining of apparatus of the present invention pressure range or
Person's pressure section；In particular, it should be pointed out that the low pressure threshold triggering connector 10d in the present invention both can set knob with pressure
There are physical space interval, low pressure threshold triggering connector 10d can also set on knob 10a with pressure for mark 12 on 10a
Mark 12 there is no physical space interval, (they mutually can overlap or coincide together at this time, and at this moment they are corresponding
Pressure regulating cavity 4 set target output pressure numerical value)；Herein, pressure instruction contact pilotage 10b layout triggers connector in HVT high voltage threshold
Between 10c and low pressure threshold triggering connector 10d and pressure instruction contact pilotage 10b can receive gas pressure in pressure regulating cavity 4
It drives and generates displacement movement, the described pressure instruction contact pilotage 10b one end connect with the A electrode 14 of power supply 13, the decompression
One input terminal of solenoid valve 9 and HVT high voltage threshold triggering connector 10c connect and another input terminal of the vacuum solenoid valve 9 then with
The B electrode 15 of power supply 13 is attached, an input terminal of the boost electromagnetic valve 8 is connect with low pressure threshold triggering connector 10d
And another input terminal of the boost electromagnetic valve 8 is then connect with the B electrode 15 of power supply 13；What needs to be explained here is that the present invention
In pressure instruction contact pilotage 10b, HVT high voltage threshold triggering connector 10c and low pressure threshold triggering connector 10d etc. be electric conductor,
They described connection is referring to the connection for the aspect that is powered.The working principle of regulator of the present invention is: being set first by pressure
Determine knob 10a and set out target output pressure numerical value, that is, turn pressure sets knob 10a and the mark 12 above it is allowed to be aligned
Some selected scale (referring to Fig. 1) on dial plate is carved, the pressure which echoes is target output pressure, target output
Pressure completes modulation in pressure regulating cavity 4, it is the use pressure or operating pressure of regulator slave device such as tool 6；
It should be pointed out that HVT high voltage threshold triggers connector 10c and low pressure threshold in the process of above-mentioned turn pressure setting knob 10a
Value triggering connector 10d can be synchronized follows pressure setting knob 10a to rotate together in the same direction, that is, HVT high voltage threshold triggers connector
10c and mark 12 remain certain physical space distance and low pressure threshold triggering connector 10d can both be kept with mark 12
Physical space distance can also be superimposed together, and herein, HVT high voltage threshold triggers connector 10c layout in the high pressure trend of mark 12
One side that is, HVT high voltage threshold's triggering connector 10c concord correspond to more slightly higher pressure value and low pressure threshold triggers connector 10d
Layout triggers connector 10d concord on the low pressure trend one side that is, low pressure threshold for identifying 12 and corresponds to more slightly lower number pressure
Value triggers the physical space interval between connector 10c and low pressure threshold triggering connector 10d by HVT high voltage threshold and determines pressure regulating cavity 4
The presence of the fluctuation range of interior gas pressure that is, the sensitive volume of pressure maintaining, the pressure maintaining section can allow regulator fine
Ground adapts to pressure oscillation caused by slave device use, while can start with being frequent to avoid this regulator repeatedly and stop
Working condition phenomenon only；It should be noted that pressure instruction its position contact pilotage 10b in the present invention is triggered between HVT high voltage threshold
Between connector 10c and low pressure threshold triggering connector 10d, pressure instruction contact pilotage 10b can experience the pressure change in pressure regulating cavity 4
And swing is generated with its fluctuation；There are following several operating conditions: 1. when causing the pressure in pressure regulating cavity 4 low using tool 6
When crossing the pressure value of low pressure threshold triggers connector 10d setting, pressure instruction contact pilotage 10b at this time will be triggered with low pressure threshold to be connect
Head 10d be in contact and be connected, then by power supply 13, A electrode 14, pressure instruction contact pilotage 10b, low pressure threshold triggering connector 10d,
The circuit loop that boost electromagnetic valve 8, B electrode 15 are constituted occurs 8 generation of closure → boost electromagnetic valve movement and opens input and connect
Mouthful 2 → epigyny device (air accumulator 5 as shown in figure 1) is connected to pressure regulating cavity 4 → and epigyny device (air accumulator 5 as shown in figure 1) is to tune
Pressure chamber 4 carry out tonifying Qi → pressure regulating cavity 4 in air pressure rising → pressure indicate contact pilotage 10b to mark 12 position backswing and disconnect with it is low
Connection → epigyny device of pressure threshold triggers connector 10d stops carrying out tonifying Qi to pressure regulating cavity 4, thus completes a pressure maintaining period；
2. due to the work of pressure regulator valve slave device causes in pressure regulating cavity 4 gas pressure that fluctuation occurs and make pressure instruction contact pilotage 10b with
HVT high voltage threshold triggering connector 10c is in contact → is then connected by power supply 13, A electrode 14, pressure indicates contact pilotage 10b, HVT high voltage threshold
Closure occurs for the circuit loop that triggering connector 10c, vacuum solenoid valve 9, B electrode 15 are constituted (when particularly this behavior occurs i.e.
Can associatedly triggering boost electromagnetic valve 8 generate truncation input interface 2 reset action) → vacuum solenoid valve 9 generation movement and beat
It opens 7 → pressure regulating cavity of bleed passage 4 and ambient atmosphere is connected and produces the air pressure decline in discouraged → pressure regulating cavity 4 → pressure instruction and touch
Needle 10b is to 12 positions of mark or its recurrence nearby to disconnect the connection with HVT high voltage threshold triggering connector 10c, thus completion one
Pressure maintaining period；3. when set from original low goal pressure be set for adjustment to high goal pressure when, have an opportunity at this time
Existing pressure instruction contact pilotage 10b keeps the situation being in contact with low pressure threshold triggering connector 10d within one period, to increase
Pressure electromagnetic valve 8 is constantly in the state for opening input interface 2, and the process that tonifying Qi is continuously carried out to pressure regulating cavity 4 will occur at this time
Until gas pressure is greater than the pressure value that low pressure threshold triggering connector 10d is echoed in pressure regulating cavity 4, a pressure maintaining is then completed
Journey；4. when set from original high goal pressure be set for adjustment to low goal pressure when, it is also organic at this time to will appear pressure
Power indicates that contact pilotage 10b will keep the situation being in contact with HVT high voltage threshold triggering connector 10c within one period, to depressurize electricity
Magnet valve 9 be constantly in open bleed passage 7 state (and can associatedly trigger simultaneously boost electromagnetic valve 8 be in truncation input connect
The reset state of mouth 2), continuous pressure regulating cavity 4 will occur at this time, and via bleed passage 7, outwardly atmosphere carries out discouraged process,
Until gas pressure is less than the pressure value that HVT high voltage threshold triggering connector 10c is echoed in pressure regulating cavity 4, a pressure maintaining is then completed
Journey.It will be apparent that the outstanding advantages that the present invention has compared with prior art are: by using solenoid valve as the tonifying Qi of pressure regulator valve
With discouraged executive component, the operation execution efficiency of pressure regulation process is improved using the fast response characteristic of solenoid valve, makes to export
Pressure quickly reaches stabilization, to widen the work accommodation range of regulator；Additionally by the pressure maintaining triggering of setting tracing type
Threshode devices carry out correlation pressure setting numerical value, the HVT high voltage threshold for limiting it and the section that is constituted of low pressure threshold have amplitude with
With characteristic, take this pressure maintaining section for obtaining certain amplitude, to widen the ability that regulator adapts to air supply system pressure oscillation.
Further, it is provided on pressure of the present invention setting knob 10a and is kept always with low pressure threshold triggering connector 10d
The conductive draw runner 16 of conducting, the conduction draw runner 16 layout the mark 12 low-pressure side and with the mark 12 for its high-voltage end
Boundary (referring to Fig. 1), the purpose for being arranged conductive draw runner 16 are to reduce pressurization electricity so that when tonifying Qi is able to maintain that one section of working time
The probability of frequent on-off occurs for magnet valve 8, it is possible thereby to effectively improve the working life and functional reliability of boost electromagnetic valve 8；Increase
If input interface 2 has been at the state opened during tonifying Qi after conductive draw runner 16, until the gas in pressure regulating cavity 4
Pressure reaches the operating pressure of 12 setting of mark.
Further, conductive draw runner 16 of the invention has slide-changing resistor characteristic, while the boost electromagnetic valve 8 uses
Linear mode control is simultaneously associated with linear regulation relationship with the presence of conductive draw runner 16, and herein, so-called linear mode control refers to increasing
The aperture of pressure electromagnetic valve 8 can be regulated and controled in the way of linear scale, and the opening degree of such input interface 2 also can be by
Its flow cross-section areas is opened to ratio, the benefits of doing so is can precisely to be mended according to the gas consumption of slave device
Gas it is possible thereby to reduce the pressure oscillation of gas in pressure regulating cavity 4, while also can be reduced the impact of taking a seat of boost electromagnetic valve 8.
A kind of quickly pressure maintaining and to follow and set pressure to adjust the regulator of activation threshold value, it includes a valve
Pedestal 1 offers at least one input interface 2 and at least one output interface 3 on the valve body 1, while in valve body 1
On be additionally provided with a pressure regulating cavity 4, the input interface 2 and output interface 3 are connected (referring to fig. 2 with the pressure regulating cavity 4
And Fig. 3)；Herein, input interface 2 to receive regulator epigyny device or system such as compressor (not shown) or
High pressure gas working medium provided by air accumulator 5 (as shown in Figures 2 and 3) etc., and output interface 3 is then used to regulator
Slave device such as tool 6 output (as shown in Figures 2 and 3) certain goal pressure gas working medium, wherein institute's output gas
Goal pressure completes modulation in pressure regulating cavity 4；Characteristic of the invention is: being provided with bleed passage 7, the bleed passage 7 and tune
Chamber 4 is pressed to be connected to；It is provided with boost electromagnetic valve 8 and vacuum solenoid valve 9, the boost electromagnetic valve 8 echoes the arrangement of input interface 2 simultaneously
It can control the on off operating mode of the input interface 2, the vacuum solenoid valve 9 echoes the arrangement of bleed passage 7 and can control this and lets out
The on off operating mode in gas channel 7；Being additionally provided with a pressure regulation unit 10 and at least one can experience in pressure regulating cavity 4
The pressure sensing passageway 11 (as shown in Figures 2 and 3) of pressure information, the pressure regulation unit 10 and 11 connection of pressure sensing passageway are simultaneously
The gas pressure information in pressure regulating cavity 4 can be obtained via the pressure sensing passageway 11, pressure regulation unit 10 can according to need
Set the target value of output pressure；Herein, pressure regulation unit 10 of the invention by the way of electronic-controlled come
Output pressure numerical value is adjusted and sets, which includes 17, A pressure sensings of a central controller
Device 18 and a B pressure sensor 19, wherein A pressure sensor 18 is mounted on pressure sensing passageway 11 and can will be acquired
Gas pressure information in pressure regulating cavity 4 passes to central controller 17, B pressure sensor 19 is mounted on the ontology of valve body 1
(as shown in Figures 2 and 3) or it is mounted on the epigyny device of valve body 1 that (not shown), B pressure sensor 19 can
It picks up the gas pressure information of 4 upstream end of pressure regulating cavity and central controller 17 can be passed it to, herein, so-called pressure regulation
The upstream of chamber 4 is referring to carry out stream part before ending at the aditus laryngis of input interface 2 with boost electromagnetic valve 8；The center control
Device 17 can set target high-pressure threshold value and target low-pressure threshold value, and the target high-pressure threshold value and target low-pressure threshold value and setting are defeated
Out there is the servo-actuated relationship of association in pressure value, and wherein target high-pressure threshold value is greater than setting output pressure numerical value and target low-pressure
Threshold value, which is less than or equal to, sets output pressure numerical value, and there are a pressure differences between target high-pressure threshold value and target low-pressure threshold value
Section, both there may be pressure differences, and pressure difference section can also be not present between setting output pressure numerical value and target low-pressure threshold value, on
State the pressure maintaining section that pressure difference section can be selected and may be constructed regulator；Central controller 17 can be sent out by operation decision
It is executed instruction accordingly to boost electromagnetic valve 8 and vacuum solenoid valve 9 out, and takes this to regulate and control input interface 2 and the presentation of bleed passage 7
The situation opened or be truncated accordingly out；It should be noted that central controller 17 of the present invention has the A of exit Yu power supply 13
The connection of electrode 14, vacuum solenoid valve 9 an input terminal connect with central controller 17 and the vacuum solenoid valve 9 another is defeated
Enter end be then attached with the B electrode 15 of power supply 13, an input terminal of boost electromagnetic valve 8 connect with central controller 17 and is somebody's turn to do
Another input terminal of boost electromagnetic valve 8 is then connect with the B electrode 15 of power supply 13.One of central controller 17 of the invention is excellent
Selecting control strategy is, when the gas pressure numerical value in pressure regulating cavity 4 is more than or equal to target high-pressure threshold value, vacuum solenoid valve 9 is opened
Logical bleed passage 7, the boost electromagnetic valve when the gas pressure numerical value in pressure regulating cavity 4 is less than or equal to setting output pressure numerical value
8 open input interface 2.Particularly, when the vacuum solenoid valve 9 opens the behavior of bleed passage 7, can use one
Kind strategy is the reset action for allowing it associatedly to trigger boost electromagnetic valve 8 and being allowed to generate truncation input interface 2.In addition, this hair
Vacuum solenoid valve 9 in bright can use Impulsive control mode, the section of bleed passage 7 can be opened rapidly in this way and to pressure regulation
Chamber 4 carries out quick pressure releasing.Particularly, boost electromagnetic valve 8 of the invention can carry out execution movement using linear mode control, also
The mode that i.e. breakdown action of boost electromagnetic valve 8 or displacement can carry out linear scale is run, and the benefit so done is can be with
Accurate tonifying Qi is carried out according to the gas consumption of slave device, it is possible thereby to the pressure oscillation amplitude of gas in pressure regulating cavity 4 is reduced,
The impact of taking a seat of boost electromagnetic valve 8 can also be reduced simultaneously；Further, the strategy of its aperture of boost electromagnetic valve 8 movement can
With are as follows: 1. when the gas pressure numerical value in pressure regulating cavity 4 is greater than setting output pressure numerical value, the aperture amplitude of boost electromagnetic valve 8
Be zero (mutually echo therewith be that input interface 2 is completely interrupted at this time and epigyny device stops carrying out tonifying Qi to pressure regulating cavity 4)；②
When the gas pressure numerical value in pressure regulating cavity 4 is between target low-pressure threshold value and setting output pressure numerical value, boost electromagnetic valve
8 aperture amplitude=100% × (the gas pressure numerical value in setting output pressure numerical value-pressure regulating cavity 4)/(setting output pressure
Numerical value-target low-pressure threshold value), what is mutually echoed therewith is the aperture of input interface 2 at this time also by the aperture of above-mentioned boost electromagnetic valve 8
Open to amplitude equal proportion its channel cross-sectional area (mutually echo therewith be at this time input interface 2 be in the controlled state of aperture into
Row open and epigyny device to pressure regulating cavity 4 carry out tonifying Qi)；3. when the gas pressure numerical value in pressure regulating cavity 4 is equal to or less than mesh
When marking low pressure threshold, the aperture amplitude of boost electromagnetic valve 8 is that (what is mutually echoed therewith is input interface 2 at this time to a hundred percent standard-sized sheet
Channel cross-section be fully opened and epigyny device by big rate to pressure regulating cavity 4 carry out tonifying Qi).In order to reduce boost electromagnetic valve
The production and installation difficulty of 8 reset springs, the present invention in boost electromagnetic valve 8 a special power-assisted gas chamber 20 can be set
(referring to Fig. 3), power-assisted gas chamber 20 can generate active force by spool of the piston to boost electromagnetic valve 8, can use tune in this way
Press chamber 4 in gas pressure as a part of reset force (not shown) or using the air pressure of 4 upstream end of pressure regulating cavity as
Certain reset force (as shown in Figure 3) particularly can allow the inner cavity of power-assisted gas chamber 20 and input interface 2 (to use in Fig. 3
Dotted line indicates both with connected relation) or/and the epigyny device of regulator (such as air accumulator 5 etc. does not show in figure
It is connected out).It will be apparent that the outstanding advantages that the present invention has compared with prior art are: by using solenoid valve as pressure regulation
The tonifying Qi of valve and discouraged executive component, execute effect using the operation that the fast response characteristic of solenoid valve improves pressure regulation process
Rate makes output pressure quickly reach stabilization, to widen the work accommodation range of regulator；Additionally by the control of electronic type
Mode be using central controller 17 be arranged tracing type target low-pressure threshold value and target high-pressure threshold value come with setting output pressure
Numerical value is associated setting, and the section that the target low-pressure threshold value for limiting it is constituted with target high-pressure threshold value is followed with amplitude
Characteristic takes this pressure maintaining section that can obtain certain amplitude, to widen the energy that regulator adapts to air supply system pressure oscillation
Power.
Above-described embodiment is only one of presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore:
The various equivalence changes that all structures under this invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (11)
1. a kind of quickly pressure maintaining and can follow and set pressure to adjust the regulator of activation threshold value, it includes a valve seat
Body offers at least one input interface and at least one output interface on the valve body, while also setting on the valve body
It is equipped with a pressure regulating cavity, the input interface and output interface are connected to the pressure regulating cavity, it is characterised in that: are provided with discouraged
Channel, the bleed passage are connected to pressure regulating cavity；It is provided with boost electromagnetic valve and vacuum solenoid valve, the boost electromagnetic valve echoes defeated
The on off operating mode of the input interface is arranged and be can control to incoming interface, and the vacuum solenoid valve echoes bleed passage and arranges and can control
The on off operating mode of the bleed passage；Being additionally provided with a pressure regulation unit and at least one can experience in pressure regulating cavity
The pressure sensing passageway of pressure information, the pressure regulation unit and pressure sensing passageway connection simultaneously can obtain tune via the pressure sensing passageway
Intracavitary gas pressure information is pressed, pressure regulation unit can set the target value of output pressure；The pressure adjusts control
Unit processed adjusts using mechanical regulation mode and sets the target value of output pressure, which includes one
A pressure setting knob, a pressure instruction contact pilotage, HVT high voltage threshold's triggering connector and a low pressure threshold trigger connector,
The mark as the setting identification of output pressure target value is provided on pressure setting knob, the HVT high voltage threshold triggers connector
The synchronous displacement in the same direction of pressure setting knob works can be followed with low pressure threshold triggering connector, wherein HVT high voltage threshold's triggering connector
Low pressure threshold triggering connector between there are physical space interval, simultaneously HVT high voltage threshold triggering connector and pressure set knob on
Mark there is also there is a physical space interval, pressure instruction contact pilotage layout is triggered in HVT high voltage threshold's triggering connector and low pressure threshold to be connect
Between head and pressure instruction contact pilotage can receive the driving of the air pressure in pressure regulating cavity and generate displacement movement, and the pressure refers to
Show that one end of contact pilotage and the A electrode connection of power supply, an input terminal of the vacuum solenoid valve and HVT high voltage threshold's triggering connector connect
Connect and the B electrode of another input terminal of vacuum solenoid valve and power supply connection, the boost electromagnetic valve an input terminal with it is low
Threshold triggers connector is pressed to connect and the connection of the B electrode of another input terminal of boost electromagnetic valve and power supply.
2. it is according to claim 1 it is a kind of can quickly pressure maintaining and can follow setting pressure come adjust activation threshold value pressure regulation fill
It sets, it is characterised in that: the conduction being held on always with low pressure threshold triggering connector is provided on pressure setting knob
Draw runner, the conduction draw runner are laid out the low-pressure side in the mark and are identified as its high-voltage end boundary with this.
3. it is according to claim 2 it is a kind of can quickly pressure maintaining and can follow setting pressure come adjust activation threshold value pressure regulation fill
It sets, it is characterised in that: the conduction draw runner has slide-changing resistor characteristic, while the boost electromagnetic valve uses Linear Control mould
Formula is simultaneously associated with linear regulation relationship with the presence of conductive draw runner.
4. a kind of quickly pressure maintaining and can follow and set pressure to adjust the regulator of activation threshold value, it includes a valve seat
Body offers at least one input interface and at least one output interface on the valve body, while also setting on the valve body
It is equipped with a pressure regulating cavity, the input interface and output interface are connected to the pressure regulating cavity, it is characterised in that: are provided with discouraged
Channel, the bleed passage are connected to pressure regulating cavity；It is provided with boost electromagnetic valve and vacuum solenoid valve, the boost electromagnetic valve echoes defeated
The on off operating mode of the input interface is arranged and be can control to incoming interface, and the vacuum solenoid valve echoes bleed passage and arranges and can control
The on off operating mode of the bleed passage；Being additionally provided with a pressure regulation unit and at least one can experience in pressure regulating cavity
The pressure sensing passageway of pressure information, the pressure regulation unit and pressure sensing passageway connection simultaneously can obtain tune via the pressure sensing passageway
Intracavitary gas pressure information is pressed, pressure regulation unit can set the target value of output pressure；The pressure adjusts control
Unit processed adjusts by the way of electronic-controlled and sets output pressure numerical value, which includes in one
Controller, an A pressure sensor and a B pressure sensor are entreated, wherein A pressure sensor is mounted on pressure sensing passageway simultaneously energy
The gas pressure information in acquired pressure regulating cavity is enough passed into central controller, B pressure sensor is mounted on valve body
Or be mounted on the epigyny device of valve body, B pressure sensor can pick up the gas pressure information of pressure regulating cavity upstream end simultaneously
And central controller can be passed it to；The central controller can set target high-pressure threshold value and target low-pressure threshold value,
The target high-pressure threshold value and target low-pressure threshold value exist with setting output pressure numerical value is associated with servo-actuated relationship, and wherein target is high
Threshold value is pressed to be greater than setting output pressure numerical value, target low-pressure threshold value is less than setting output pressure numerical value；Central controller can lead to
It crosses the sending of operation decision to execute instruction to boost electromagnetic valve and vacuum solenoid valve accordingly, and takes this to regulate and control input interface and lose heart
Channel shows the situation opened or be truncated accordingly.
5. it is according to claim 4 it is a kind of can quickly pressure maintaining and can follow setting pressure come adjust activation threshold value pressure regulation fill
It sets, it is characterised in that: the control strategy of the central controller is, when the gas pressure numerical value in pressure regulating cavity is greater than or waits
Vacuum solenoid valve opens bleed passage when target high-pressure threshold value, sets when the gas pressure numerical value in pressure regulating cavity is less than or equal to
Boost electromagnetic valve opens input interface when determining output pressure numerical value.
6. it is according to claim 5 it is a kind of can quickly pressure maintaining and can follow setting pressure come adjust activation threshold value pressure regulation fill
It sets, it is characterised in that: pressurization electromagnetism can be associatedly triggered when the vacuum solenoid valve opens the behavior of bleed passage
Valve and be allowed to generate truncation input interface reset action.
7. it is according to claim 6 it is a kind of can quickly pressure maintaining and can follow setting pressure come adjust activation threshold value pressure regulation fill
It sets, it is characterised in that: the vacuum solenoid valve uses Impulsive control mode.
8. according to energy described in claim 4 to 7 any one quick pressure maintaining and setting pressure can be followed to adjust activation threshold value
Regulator, it is characterised in that: the boost electromagnetic valve use linear mode control.
9. according to claim 8 quickly pressure maintaining and can follow and set pressure to adjust the regulator of activation threshold value,
It is characterized by: its aperture action policy of the boost electromagnetic valve are as follows: 1. set when the gas pressure numerical value in pressure regulating cavity is greater than
When determining output pressure numerical value, the aperture amplitude of boost electromagnetic valve is zero；2. when the gas pressure numerical value in pressure regulating cavity is in target
When between low pressure threshold and setting output pressure numerical value, aperture amplitude=100% × (setting output pressure number of boost electromagnetic valve
Gas pressure numerical value in value-pressure regulating cavity)/(setting output pressure numerical value-target low-pressure threshold value)；3. when the gas in pressure regulating cavity
When pressure value is equal to or less than target low-pressure threshold value, the aperture amplitude of boost electromagnetic valve is a hundred percent standard-sized sheet.
10. according to energy described in claim 4 to 7 any one quick pressure maintaining and setting pressure can be followed to adjust activation threshold value
Regulator, it is characterised in that: the boost electromagnetic valve is provided with power-assisted gas chamber.
11. it is according to claim 10 can quickly pressure maintaining and can follow setting pressure come adjust activation threshold value pressure regulation fill
It sets, it is characterised in that: described its inner cavity of power-assisted gas chamber is connected with the epigyny device of input interface or/and regulator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811150878.8A CN109058537B (en) | 2018-09-29 | 2018-09-29 | Pressure regulating device capable of maintaining pressure rapidly and adjusting trigger threshold along with set pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811150878.8A CN109058537B (en) | 2018-09-29 | 2018-09-29 | Pressure regulating device capable of maintaining pressure rapidly and adjusting trigger threshold along with set pressure |
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| CN109058537B CN109058537B (en) | 2023-11-21 |
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| CN209115751U (en) * | 2018-09-29 | 2019-07-16 | 浙江鸿友压缩机制造有限公司 | The quick pressure maintaining of energy simultaneously can follow setting pressure to adjust the regulator of activation threshold value |
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| CN2237766Y (en) * | 1995-07-21 | 1996-10-16 | 李广玉 | Relief safety valve for liquified gas cylinder |
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| CN109058537B (en) | 2023-11-21 |
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