CN205117869U - Monitor control system of piston type regulating valve - Google Patents
Monitor control system of piston type regulating valve Download PDFInfo
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- CN205117869U CN205117869U CN201520928025.8U CN201520928025U CN205117869U CN 205117869 U CN205117869 U CN 205117869U CN 201520928025 U CN201520928025 U CN 201520928025U CN 205117869 U CN205117869 U CN 205117869U
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Abstract
The utility model relates to a monitor control system of piston type regulating valve, it includes servo motor, the work of drive oil pump, the oiling is controlled in opening and close of servovalve, signal processing control module handles the signal of signal acquisition module collection to exporting servo driver with the result, changing servo motor's rotational speed through servo driver, the input signal control servovalve opens and close simultaneously. The utility model discloses a signal acquisition module and signal processing module gather in real time and monitor the valve of governing valve and the oil pressure incoming signal of hydro -cylinder to feeding back servo motor, through the change of servo motor rotational speed, changing the injection flow of oil pump, and open the servovalve, let oil can pour into the hydro -cylinder into through the oil pump, full automation realizes the volume of opening and close of governing valve valve.
Description
Technical field
The utility model relates to a kind of automatic on-line Monitoring and Controlling energy conserving system, particularly a kind of monitor control system of piston type regulating valve.
Background technique
At present, large-scale water undertaking has reached increasingly automated all, and from the recovery of water, storage, purified treatment to distribution, hundreds of data and measured value are all collected by process control computer system, store and process, measuring, operate, regulating the process control reaching technical elements the best all whereby.
Piston type axial flow modulating valve primarily of valve body, piston, lead the compositions such as cap, seal ring, guide rod, connecting rod, crank, actuator.Main valve body is inside and outside cylinder mode, have in valve body some following currents to gusset couple together two-layer inside and outside valve body, form a complete axisymmetric annular fluid passage.Regulation structure is slidercrank mechanism, and slide block is columnar piston, and piston nose connects mouse cage, and mouse cage periphery is grid runner, by rail guidance in inner cylinder, can do axial displacement along pipeline, changes runner by area, to realize regulating and controlling.Runner is axialsymmetric flow road, and it is large that grid crosses water cross section, and can prevent foreign material from blocking, fluid is guided well in cleanliness valve body, and low water head loses; In valve pocket, current transverse section, any position is ring-type, guarantees linear operation characteristic, and high-velocity flow flows into from grid simultaneously, mutually clashes at valve flowing channel central core region, eliminates energy, makes cavitation phenomenon occur in valve central position, not damage threshold door part.Slidercrank mechanism stable operation is reliable, and output torque is constant, closes first quick and back slow, thus without any water hammer.Should, according to outlet pressure, control to drive Electric actuator change valve opening or closed condition to realize automatic pressure reducing function through regulator.
Model utility content
In order to the valve opening and closing overcoming modulating valve does not reach optimally-controlled deficiency, the utility model provides a kind of monitor control system of piston type regulating valve.
The technological scheme that the utility model adopts is: a kind of monitor control system of piston type regulating valve, it comprises the hydraulic station, oil pump, the oil cylinder that connect successively, and modulating valve oil cylinder actuator, described modulating valve oil cylinder actuator comprises and is positioned at in-oil cylinder piston, described hydraulic station is by oil pump toward oiling in oil cylinder, and described oil cylinder is positioned at modulating valve, also comprises actuating motor, described actuating motor is connected with oil pump, drives operation of oil pump; Servovalve, described servovalve is connected between oil pump and oil cylinder, controls oiling by the keying of servovalve; Signal acquisition module, gathers the oil pressure input signal of the displacement amount of piston in oil cylinder, control valve position command signal and oil cylinder; Signal transacting control module, is connected with signal acquisition module, processes, and processing result is outputted to servo driver, changed the rotating speed of actuating motor by servo driver to the signal gathered, and output signal controls the keying of servovalve simultaneously.
Described signal acquisition module comprises linear displacement transducer, and this linear displacement transducer is arranged on piston, for gathering the displacement amount of piston in oil cylinder.
Described signal acquisition module comprises pressure transmitter, and this pressure transmitter is arranged on hydraulic station, for gathering the oil pressure input signal of oil cylinder.
Described servo driver is provided with actuating motor power signal and gathers port and display floater, and described actuating motor power signal gathers port and is connected with upper-position unit, and to obtain actuating motor power signal, and display on a display panel.
Described signal transacting control module comprises the analog output module of electrical connection, analog output module 2, digital module and encoder, processing result is outputted to motor servo driver and digital module by described analog output module 2 respectively, described encoder is connected with actuating motor, obtain the real-time dynamic speed of actuating motor, and feed back to motor servo driver and digital module.
The beneficial effects of the utility model are: the utility model is by signal acquisition module and signal processing module, Real-time Collection and monitoring are carried out to the valve of modulating valve and the oil pressure input signal of oil cylinder, and feed back to actuating motor, by the change of actuating motor rotating speed, change the oil filling amount of oil pump, and open servovalve, oil can be injected in oil cylinder through oil pump, and whole-course automation realizes the keying amount of modulating valve valve.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2, Fig. 3 are the circuit connection diagrams that the present invention is complete.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of monitor control system of piston type regulating valve, it comprises the hydraulic station, oil pump, the oil cylinder that connect successively, and modulating valve oil cylinder actuator, described modulating valve oil cylinder actuator comprises and is positioned at in-oil cylinder piston, described hydraulic station by oil pump toward oiling in oil cylinder, described oil cylinder is positioned at modulating valve, also comprise actuating motor, described actuating motor is connected with oil pump, drives operation of oil pump, servovalve, described servovalve is connected between oil pump and oil cylinder, controls oiling by the keying of servovalve, signal acquisition module, gathers the oil pressure input signal of the displacement amount of piston in oil cylinder, control valve position command signal and oil cylinder, signal transacting control module, be connected with signal acquisition module, the signal gathered is processed, and processing result is outputted to servo driver, the rotating speed of actuating motor is changed by servo driver, output signal controls the keying of servovalve simultaneously, by signal acquisition module and signal processing module, Real-time Collection and monitoring are carried out to the valve of modulating valve and the oil pressure input signal of oil cylinder, and feed back to actuating motor, by the change of actuating motor rotating speed, change the oil filling amount of oil pump, and open servovalve, oil can be injected in oil cylinder through oil pump, whole-course automation realizes the keying amount of modulating valve valve, thus reach the deceleration of oil pump and the minimizing of the electric motor starting frequency, prolonged mechanical life-span and minimizing energy consumption, reach the object of energy-saving and emission-reduction.
Described signal acquisition module comprises linear displacement transducer, and this linear displacement transducer is arranged on piston, for gathering the displacement amount of piston in oil cylinder, and this linear displacement transducer control accuracy 0.2%.
Described signal acquisition module comprises pressure transmitter, and this pressure transmitter is arranged on hydraulic station, for gathering the oil pressure input signal of oil cylinder, and this pressure transmitter control accuracy 0.1%.The detection of oil cylinder dynamic value is carried out with displacement transducer plus-pressure sensor, and then the rotating speed of control oil pump, reach the ability of Intelligent Measurement and the self adaptive control of Oil pump electrical machinery rotating speed.
Described servo driver is provided with actuating motor power signal and gathers port and display floater, described actuating motor power signal gathers port and is connected with upper-position unit, to obtain actuating motor power signal, and display on a display panel, and described servo driver adopts AB755.
Described signal transacting control module comprises the analog output module of electrical connection, analog output module 2, digital module and encoder, processing result is outputted to motor servo driver and digital module by described analog output module 2 respectively, described encoder is connected with actuating motor, obtain the real-time dynamic speed of actuating motor, and feed back to motor servo driver and digital module, two-way output quantity, form two-way closed loop control, be used for the rotating speed of automated closed-loop actuating motor, both the rotating speed of actuating motor had been controlled, simultaneously again by the speed feedback after changing in motor servo driver, thus the oily flow supply needed for control oil cylinder.
A controlling method for piston type regulating valve, its step is as follows:
S1: the displacement amount L1 being recorded piston by linear displacement transducer, obtain the command signal L2 of modulating valve, carry out mathematic interpolation, obtain absolute value L3, namely
L3=|L1-L2|；
S2: the dynamic time T2 calculating cylinder movement, namely
T1/L4=T2/L3
T2=L3·（T1/L4）
Wherein, the time of T1-piston whole stroke of movement in oil cylinder;
The whole length of oil cylinder of L4-;
S3: according to oil mass formula,
Q=V/T；
Wherein, the volume of V – oil cylinder;
T-oil is full of the time required for oil hydraulic cylinder;
The oil mass Q mended can be needed,
Q=V/T2=（A·L3）/T2
Wherein, effective work area of A-piston;
S4: oil mass Q is outputted to servo driver, by tabling look-up, (referring to table 1) converts oil mass Q to rotating speed, changes the rotating speed of actuating motor.
Below described by reference to the accompanying drawings embodiment is only preferred implementation of the present utility model, and the restriction not to protection domain of the present utility model, and any improvement done based on the utility model spirit all ought within the utility model protection domain.
Claims (5)
1. the monitor control system of a piston type regulating valve, it comprises the hydraulic station, oil pump, the oil cylinder that connect successively, and modulating valve oil cylinder actuator, described modulating valve oil cylinder actuator comprises and is positioned at in-oil cylinder piston, described hydraulic station by oil pump toward oiling in oil cylinder, described oil cylinder is positioned at modulating valve, it is characterized in that: also comprise
Actuating motor, described actuating motor is connected with oil pump, drives operation of oil pump;
Servovalve, described servovalve is connected between oil pump and oil cylinder, controls oiling by the keying of servovalve;
Signal acquisition module, gathers the oil pressure input signal of the displacement amount of piston in oil cylinder, control valve position command signal and oil cylinder;
Signal transacting control module, is connected with signal acquisition module, processes, and processing result is outputted to servo driver, changed the rotating speed of actuating motor by servo driver to the signal gathered, and output signal controls the keying of servovalve simultaneously.
2. the monitor control system of a kind of piston type regulating valve according to claim 1, it is characterized in that: described signal acquisition module comprises linear displacement transducer, this linear displacement transducer is arranged on piston, for gathering the displacement amount of piston in oil cylinder.
3. the monitor control system of a kind of piston type regulating valve according to claim 1, it is characterized in that: described signal acquisition module comprises pressure transmitter, this pressure transmitter is arranged on hydraulic station, for gathering the oil pressure input signal of oil cylinder.
4. the monitor control system of a kind of piston type regulating valve according to claim 1, it is characterized in that: described servo driver is provided with actuating motor power signal and gathers port and display floater, described actuating motor power signal gathers port and is connected with upper-position unit, to obtain actuating motor power signal, and display on a display panel.
5. the monitor control system of a kind of piston type regulating valve according to claim 1, it is characterized in that: described signal transacting control module comprises the analog output module of electrical connection, analog output module 2, digital module and encoder, processing result is outputted to motor servo driver and digital module by described analog output module 2 respectively, described encoder is connected with actuating motor, obtain the real-time dynamic speed of actuating motor, and feed back to motor servo driver and digital module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928025.8U CN205117869U (en) | 2015-11-20 | 2015-11-20 | Monitor control system of piston type regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928025.8U CN205117869U (en) | 2015-11-20 | 2015-11-20 | Monitor control system of piston type regulating valve |
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| CN205117869U true CN205117869U (en) | 2016-03-30 |
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| CN201520928025.8U Active CN205117869U (en) | 2015-11-20 | 2015-11-20 | Monitor control system of piston type regulating valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298966A (en) * | 2015-11-20 | 2016-02-03 | 江南阀门有限公司 | Monitoring and controlling system and control method of piston type adjusting valve |
| CN112327671A (en) * | 2020-10-29 | 2021-02-05 | 哈尔滨工程大学 | Regulating valve state monitoring and quick response control system based on AR |
-
2015
- 2015-11-20 CN CN201520928025.8U patent/CN205117869U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298966A (en) * | 2015-11-20 | 2016-02-03 | 江南阀门有限公司 | Monitoring and controlling system and control method of piston type adjusting valve |
| CN112327671A (en) * | 2020-10-29 | 2021-02-05 | 哈尔滨工程大学 | Regulating valve state monitoring and quick response control system based on AR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Zhonghao Valve Co.,Ltd. Assignor: JIANGNAN VALVE Co.,Ltd. Contract record no.: X2021330000244 Denomination of utility model: A monitoring and control system for piston regulating valve Granted publication date: 20160330 License type: Common License Record date: 20210923 Assignee: Zhejiang juzhixin Valve Co.,Ltd. Assignor: JIANGNAN VALVE Co.,Ltd. Contract record no.: X2021330000292 Denomination of utility model: A monitoring and control system for piston regulating valve Granted publication date: 20160330 License type: Common License Record date: 20210923 Assignee: Zhejiang zhenfuhao Valve Co.,Ltd. Assignor: JIANGNAN VALVE Co.,Ltd. Contract record no.: X2021330000288 Denomination of utility model: A monitoring and control system for piston regulating valve Granted publication date: 20160330 License type: Common License Record date: 20210923 |
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| EE01 | Entry into force of recordation of patent licensing contract |