CN1073783A - A kind of electromechanical integrated digital-control needle valve - Google Patents
A kind of electromechanical integrated digital-control needle valve Download PDFInfo
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- CN1073783A CN1073783A CN 91108277 CN91108277A CN1073783A CN 1073783 A CN1073783 A CN 1073783A CN 91108277 CN91108277 CN 91108277 CN 91108277 A CN91108277 A CN 91108277A CN 1073783 A CN1073783 A CN 1073783A
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Abstract
A kind of electromechanical integrated digital-control needle valve, it is used for the experimental facilities of various chemical industry, geological experiment, in the particularly various automation experiment equipment.It has valve body, aciculiform spool, it is characterized in that: the spool upper end is connected with large speed ratio speed reduction unit and numerical-control motor, standard industrial control is arranged, and be inserted with the adaptation module that numerical-control motor is controlled therein, the control interface links to each other with the central control computer that can have by standard serial port.Owing to adopted central control computer and control interface to add this electromechanical integration form of executive component, can change the opening value of valve by the method for control automatically.
Description
A kind of electromechanical integrated digital-control needle valve, it is used for the experimental facilities of various chemical industry, geological experiment, in the particularly various automation experiment equipment.
In chemical industry and GEOLAB, for simulating various productions and geologic condition, seek best chemical industry parameter, use various needle valves that the liquid or the gas of various addings or output are controlled.In whole experiment flow, each valve need often be adjusted.Now usedly in the laboratory be mostly manual needle valve, it is by manual shift.In experiment, the experimenter shows manual adjustments by the various measurements of observation.This needs operating personnel that very skilled operation skill is arranged on the one hand, and labour intensity is big, be easy to generate misoperation, on the other hand, mostly present experimental measurement is digitizing, electromechanical integrated structure, and artificial manual adjustments is also used in valve control, has become the bottleneck problem of whole Experimental Establishment robotization.
The objective of the invention is to invent a kind of electromechanical integrated digital-control needle valve, adopt electromechanical integration technology to link to each other with other measuring and controlling equipment, can be by the opening value of digital control change valve, easy to operate.
The present invention as shown in Figure 1, it has valve body 1, spool 2, it is characterized in that: spool 2 upper ends are connected with large speed ratio speed reduction unit 3 and numerical-control motor 4, standard industrial control 5 is arranged, in standard industrial control 5, be inserted with and link to each other with numerical-control motor 4 and its adaptation module of controlling 6, standard industrial control 5 by the standard serial communication interface with can link to each other with the total central control computer 7 of other measuring and controlling equipment.
The present invention links to each other with other measuring and controlling equipment by central control computer 7 in use.After central control computer 7 is gathered whole experiment parameter, calculate by software setting, obtain valve opening adjusted value of the present invention.During adjustment, central control computer 7 sends address gating signal by the standard serial communication interface, and by standard industrial control 5 gating adaptation module 6, computing machine sends signal and makes numerical-control motor 4 forward or reverse then, valve opening is increased or reduces.The variable quantity of valve opening can be realized by the timing interrupt control of central control computer 7.Because the rotating speed and the revolution valve amount of movement parameter of numerical-control motor 4 can deposit central control computer 7 in advance in, calculate time of electrical power by machine solution, obtain the aperture adjusted value conduction time by control numerical-control motor 4.The control of valve opening variable quantity, also can adopt feedback, after numerical-control motor 4 in central control computer control the present invention rotates, whether reach requirement and control stopping of numerical-control motor 4 by measuring other parameter (as temperature of reaction, pressure or delivery rate etc.).
The present invention adopts central control computer and standard industrial control to add this electromechanical integration form of topworks, can automatically adjust by the aperture of digital computer technology to needle valve, particularly can be connected as a single entity with other measuring and controlling equipment, use measurement parameter to carry out FEEDBACK CONTROL, can obtain high control precision and response speed faster.Electrification drives, and is easy to operate.
In the present invention, be simplified structure, also can save standard industrial control 5 and central control computer 7, adaptation module 6 is changed into the contactor of manual motor 4 rotatings.
The numerical-control motor 4 that is adopted among the present invention can use the miniature instrument AC motor, produces low speed synchromotor series as Hangzhou motor for instrument factory.For realizing rotating, can use two to turn to different motor joinings, reach the purpose of forward and reverse control by different electrical powers.Motor of the present invention also can use dc micro-motor, and bigger starting torque is arranged, and by the change of electric power polarity, the motor sense of rotation is changed.Can also use the autosynchronous motor of making rotor of rare earth permanent-magnetic material, drive with variable-frequency power sources, adjust turning to of motor by the phase relation of adjusting variable-frequency power sources, for example the patent No. is the patent of CN89209067.
In the present invention, speed reduction unit 3 can use multistage common speed reduction unit, also can use harmonic gear reducer, and bigger reduction gear ratio is arranged.Can also use as " a kind of high-ratio differential speed reducer " of number of patent application, very big reduction gear ratio and very little volume are arranged as CN91103847.The present invention can also make an integral body to motor and speed reduction unit, and for example number of patent application is the patent of CN91103795 " a kind of differential reducing electric servo unit ", and littler unitized construction size is arranged.
In the present invention, standard industrial control 5 can be selected the I/O K32 of U.S. ME company (MECHATRONIC EQUIPENT INC.) for use, or the PB16AH of U.S. OPTO 22 companies, adaptation module 6 can be selected the OAC5 module of U.S. OPTO 22 companies for use.Central control computer 7 can be selected the LC4 controller of U.S. OPTO 22 companies for use, also can select the PCS-1 industrial process workstation of ME company for use.
Claims (1)
1, a kind of electromechanical integrated digital-control needle valve, it has valve body 1, spool 2, it is characterized in that: spool 2 upper ends are connected with large speed ratio speed reduction unit 3 and numerical-control motor 4, standard industrial control 5 is arranged, in standard industrial control 5, be inserted with and link to each other with numerical-control motor 4 and its adaptation module of controlling 6, standard industrial control 5 by the standard serial communication interface with can link to each other with the total central control computer 7 of other measuring and controlling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108277 CN1073783A (en) | 1991-12-20 | 1991-12-20 | A kind of electromechanical integrated digital-control needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108277 CN1073783A (en) | 1991-12-20 | 1991-12-20 | A kind of electromechanical integrated digital-control needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1073783A true CN1073783A (en) | 1993-06-30 |
Family
ID=4909190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108277 Pending CN1073783A (en) | 1991-12-20 | 1991-12-20 | A kind of electromechanical integrated digital-control needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8910650B2 (en) | 2007-10-19 | 2014-12-16 | Alfa Laval Kolding A/S | Method for operating a valve |
-
1991
- 1991-12-20 CN CN 91108277 patent/CN1073783A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8910650B2 (en) | 2007-10-19 | 2014-12-16 | Alfa Laval Kolding A/S | Method for operating a valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |