CN103236202B - A kind of integrated form process industry dynamic process control experimental provision - Google Patents
A kind of integrated form process industry dynamic process control experimental provision Download PDFInfo
- Publication number
- CN103236202B CN103236202B CN201310145326.9A CN201310145326A CN103236202B CN 103236202 B CN103236202 B CN 103236202B CN 201310145326 A CN201310145326 A CN 201310145326A CN 103236202 B CN103236202 B CN 103236202B
- Authority
- CN
- China
- Prior art keywords
- tank
- experimental provision
- water
- resistance
- integrated form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Flow Control (AREA)
Abstract
A kind of integrated form process industry dynamic process control experimental provision, relates to a kind of Control release device.Be made up of two or more capacitance-resistance tank, adopt the experimental provision without pipeline, valveless integrated form formation simulated object dynamic perfromance, configuration various control system mode is tested, the controlled device of experimental provision adopts and forms without pipeline, the integrated elementary cell of valveless and capacitance-resistance link, screw thread flap mode is adopted to exchange the resistance of throttle orifice liquid, liquid resistance from the change of 0-∞, so that simulates multiple linear or non-linear dynamic characteristic.Tank installs and measures transmitter respectively, and on-the-spot instruction spinner-type flowmeter is wherein housed in four road inlet pipelines respectively, and throttling orifice plate, operation valve and cycling use of water pump, exit of pump is equipped with tensimeter.The present invention can carry out process control simulation experiment to process units, equipment and machine process processes such as large chemical industry, fluids, is applicable to colleges and universities, scientific research institutions, training organization and factory etc. and carries out automated teaching and scientific research, is also suitable for teaching.
Description
Technical field
The present invention relates to a kind of experimental provision, particularly relate to a kind of integrated form process industry dynamic process control experimental provision.
Background technology
At present, the controlled device of process control device, has plenty of the analogy method simplifying by actual industrial object is similar by its profile, structure, reduce, as rectification column, neutralization reactor, heat interchanger and electric boiler etc.Its advantage is visual pattern, attractive in appearance beautiful with stainless steel material, with five large parameters (temperature, pressure, flow, liquid level, PH) to various control system experiment name, seem very true, but actual to prove to be difficult to simulate more all sidedly in process industry the dynamic perfromances such as various tower, still, stove, cellar for storing things, device and machine, limitation is very large and lack the dirigibility of simulation.Issue table is present: one, supplier does not give structure technology parameter, student can not obtain concrete dynamic perfromance with modelling by mechanism, common professional conceptual, as the limit in transport function, zero point, non-linear, time constant, gain, controllability and ornamental etc., experimental provision can not intuitively be found out the implication of these concepts.Its two, this kind of device price is greatly with high investment, big energy-consuming, complex structure, has manually-operated gate tens, uses inconvenience.Both making of having take water as medium, capacitance-resistance tank is the experimental provision of elementary cell, but they are the discrete constructive methods adopting hand valve to become liquid resistance size, the dynamic perfromance type that can simulate and number few, function is few, can not meet the needs of new period multilevel experiment teaching and scientific research.Its three, the product that supplier provides is a device, only can test for one group of student and floor area is large, if there is the laboratory of many covering devices just to seem crowded.At present, both can multi input-multi output (MIMO), again can single input-mono-export (SISO) polymorphic type, organize number more, easy to operate Control release device is development trend.
Summary of the invention
The object of the present invention is to provide a kind of integrated form process industry dynamic process control experimental provision.This experimental provision both can form single input-mono-output as required, also can form the linear of multi input-multi output or non-linear dynamic characteristic.Take water as medium, have general character with process industry material used, can exchange and adjustment accurately, flexibly, easily as required.Measure and control instrument mixed by this experimental provision, can form various procedures control system, realizes the object of experimental study.
The object of the invention is to be achieved through the following technical solutions:
A kind of integrated form process industry dynamic process control experimental provision, described experimental provision is made up of two or more capacitance-resistance tank, adopt the experimental provision without pipeline, valveless integrated form formation simulated object dynamic perfromance, configuration various control system mode is tested, the controlled device of experimental provision adopts and forms without pipeline, the integrated elementary cell of valveless and capacitance-resistance link, screw thread flap mode is adopted to exchange the resistance of throttle orifice liquid, liquid resistance from the change of 0-∞, so that simulates multiple linear or non-linear dynamic characteristic.
Described a kind of integrated form process industry dynamic process control experimental provision, places simulation and produces annex that is non-linear and pure lag characteristic in the tank of described experimental provision.
Described a kind of integrated form process industry dynamic process control experimental provision, has the part of simulation process control survey transmitter characteristic in described experimental provision.
Described a kind of integrated form process industry dynamic process control experimental provision, experimental provision described in it is the ideal of testing and control valve and real work discharge characteristic simultaneously.
Advantage of the present invention and effect are:
1. the controlled device of experimental provision adopts and forms without the integrated elementary cell of pipeline (capacitance-resistance link), both can form single input-mono-output as required, also can form the linear of multi input-multi output or non-linear dynamic characteristic.Take water as medium, have general character with process industry material used.There is multifrequency nature test, comprise open loop stabilization, instability, concussion, self-balance etc. tens of kinds.System time constant, can be exchanged and adjustment to several tens minutes as required accurately, flexibly, easily in a few minutes at zero point.The throttle diameter of flow resistance can as required at h-r-Q(liquid level-aperture-flow) conveniently check in curve map, flow resistance R scope is 0-∞.
2. the instrument on device is technical grade, and specifications and models are single, and quantity is few, reduced investment, and maintenance is little.
3. easy to operate, equipment, pipeline hand valve are minimum, and stream simply moves towards clear, and annexation is directly perceived.
4. analogue means transparent material manufactures handling ease, and price is relatively low.Graduation links student can design, assemble regulation experiment, completes overall process, can improve students practise quality, capability and qualification.Be specially adapted to practical teaching, the physics of the control channel of object, disturbance passage, coupling channel and time constant size is formed, the professional conceptual such as controllability, ornamental, one says that a finger is readily understood that at a glance and has effect of drawing inferences about other cases from one instance, and helps to solve the difficult point in field research.
5. floor area is little.Analogue means is that the wide x of the long x of 0.65x1.2x1.9(is high) m, floor area about 1 square metre.A device has four independent controlled devices can supply four experimental group simultaneously, solves laboratory equipment many, the little and financial strain problem in student's activities space.
6. energy-saving and environmental protection (low noise, clean), security are good.Set of device 220V AC powers, and power consumption is about 1KW, silencing water pump, cycling use of water.
Accompanying drawing explanation
Fig. 1 is control system schematic diagram of the present invention;
Fig. 2 is apparatus of the present invention composition schematic diagram.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is described in detail.
This process control device is integrated form, is elementary cell simulation controlled device and measuring transducer dynamic perfromance by transparent sink.Without pipeline and valve between tank, principle of simulation is identical with by digital computer simulation mechanism, but it is the physical simulating method realized according to mathematical model fluid.The liquid resistance of each tank and liquid hold formation single order capacitance-resistance link, and the large I of flow resistance is exchanged as required, capacity coefficient size adjustable.Need multistage ssystem transfer function just to simulate with multiple tank, integrated level is by two to a lot of.System time constant scope, by a few second to a few minutes at zero point or several tens minutes, precision is 1 grade.Carry out series and parallel connections with multiple tank, form the controlled device of the multi input-multi output of dissimilar, different number, principle is shown in Fig. 1, comprising: exogenous disturbances part; Integrated form water tank group controlled process Dynamic Simulation part; Measure change and send simulated behavior part.
Practical function is included in elementary cell tank can place the pure stickiness that purely retarded annex realizes pure delay time τ=1-3 minute; The plant characteristic of simulation can there is open loop stabilization and unstable, only have limit or have zero pole point, self-balance and integrator plant characteristic; Have viewed from exponent number on (maximum 12 rank) of low order and high-order; Place non-linear annex and realize any nonlinear characteristic; On device, ideal and actual working characteristics experiment can be done to operation valve used simultaneously.
Modern test and control instrument mixed by this experimental provision, just can form various procedures control system, realizes the object of experimental study.
Process control objects of the present invention is three-decker, and every layer of transparent tank is divided into the sulculus at eight intervals that differ in size, wherein four simulation controlled devices, four analogue measurement transmitter first-order characteristics.Interconvertible throttle orifice is arranged at each little tank side lower part and bottom, is realized, flow resistance R=0-∞ by threaded seat and lid.R=0 during throttle orifice uncovered, straight-through between groove, laterally straight-through increase area.And longitudinal leading directly to is quite passage, without R=∞ during port lid, isolate obstructed between groove.Tank can be square or complete in cylindrical.Three layers of tank are placed on mounting, and cycling use of water case is put in bottom, and water tank two side lower part is connected with four water pumps.Exit of pump pipeline is vertically upward in the middle part of auto levelizer, point two-way a: road is installed operation valve successively, shown the throttling orifice plate of spinner-type flowmeter, measuring flow on the spot, finally leads to water that upper flume import enters as technical load; Another road installs two with the hand valve, spinner-type flowmeter, the throttling orifice plate that produce quantitative step disturbance, finally also leads to top tank.This water delivering orifice connects flexible pipe, during disturbance just can be added to, in the tank of bottom.Composition is shown in Fig. 2, comprising: water pump; Differential pressure transmitter, hand valve, electric control valve, differential pressure transmitter, flowmeter, cyclic water tank.Bottom tank outlet can be connected with neighbouring water pump, makes simulated object have approximate integration characteristic.Device is furnished with eight differential pressure transmitters, surveys liquid level, measurement of discharge when being connected with throttling orifice plate when being connected with tank, with when being connected before and after operation valve, and can the pressure drop of side valve.When having four experimental group to test simultaneously, an often group operation valve, two differential pressure transmitters.Transmitter is placed on the framework of differing heights lattice as required, avoids the trouble adjusting range when different purposes, also saves Instrument use amount simultaneously.Device can by the design con-trol system such as various conventional control instrument, DCS, FCS and PLC.
Claims (1)
1. an integrated form process industry dynamic process control experimental provision, described experimental provision comprises: water pump, differential pressure transmitter, hand valve, electric control valve, flowmeter, cyclic water tank, it is characterized in that, described experimental provision is three-decker, every layer of transparent tank is divided into the little tank at eight intervals that differ in size, wherein four simulation controlled devices, four analogue measurement transmitter first-order characteristics; Interconvertible throttle orifice is arranged at each little tank side lower part and bottom, realizes flow resistance R change from 0-∞ by threaded seat and lid, and tank can be square or complete in cylindrical; Three layers of tank are placed on mounting, and cycling use of water case is put in bottom, and water tank two side lower part is connected with four water pumps; Exit of pump pipeline is vertically upward in the middle part of auto levelizer, point two-way a: road is installed operation valve successively, shown the throttling orifice plate of spinner-type flowmeter, measuring flow on the spot, finally leads to water that upper flume import enters as technical load; Another road installs two with the hand valve, spinner-type flowmeter, the throttling orifice plate that produce quantitative step disturbance, finally leads to top tank; Top sink outlet connects flexible pipe, during disturbance just can be added to, in the tank of bottom; Bottom tank outlet is connected with neighbouring water pump, makes simulated object have approximate integration characteristic; Device is furnished with eight differential pressure transmitters, surveys liquid level, measurement of discharge when being connected with throttling orifice plate when being connected with tank, with when being connected before and after operation valve, and can the pressure drop of side valve; Place non-linear annex and realize any nonlinear characteristic; On device, ideal and actual working characteristics experiment can be done to operation valve used simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145326.9A CN103236202B (en) | 2013-04-25 | 2013-04-25 | A kind of integrated form process industry dynamic process control experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145326.9A CN103236202B (en) | 2013-04-25 | 2013-04-25 | A kind of integrated form process industry dynamic process control experimental provision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103236202A CN103236202A (en) | 2013-08-07 |
| CN103236202B true CN103236202B (en) | 2015-07-29 |
Family
ID=48884239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310145326.9A Active CN103236202B (en) | 2013-04-25 | 2013-04-25 | A kind of integrated form process industry dynamic process control experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103236202B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726832B (en) * | 2013-12-25 | 2016-01-06 | 西南石油大学 | A kind of based on the marine riser mechanical behavior Experimental mimic system under deepwater drilling operating mode and test method |
| CN109163879A (en) * | 2018-09-06 | 2019-01-08 | 沈阳化工大学 | A kind of process industry multivariable process dynamic characteristic Hydraulic simulation test devices and methods therefor |
| CN114283669B (en) * | 2021-12-24 | 2023-02-28 | 东北大学 | Automatic control experiment device and method for multivariable open-loop unstable object |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727880Y (en) * | 2004-09-23 | 2005-09-21 | 浙江高自成套设备有限公司 | Procedure control experimental apparatus |
| CN2821744Y (en) * | 2005-07-19 | 2006-09-27 | 浙江天煌科技实业有限公司 | Process control object system test device |
| CN101976046A (en) * | 2010-10-12 | 2011-02-16 | 沈阳化工大学 | Method for simulating dynamic characteristic of controlled object and measuring and transducing process |
| CN201910160U (en) * | 2010-10-12 | 2011-07-27 | 沈阳化工大学 | Process control experimental device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100023170A1 (en) * | 2001-06-08 | 2010-01-28 | Spillguard Technologies, Inc. | Apparatus for monitoring and controlling material handling system operations |
| JP5361955B2 (en) * | 2011-08-01 | 2013-12-04 | 株式会社東芝 | Operation support system for water treatment plant |
-
2013
- 2013-04-25 CN CN201310145326.9A patent/CN103236202B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727880Y (en) * | 2004-09-23 | 2005-09-21 | 浙江高自成套设备有限公司 | Procedure control experimental apparatus |
| CN2821744Y (en) * | 2005-07-19 | 2006-09-27 | 浙江天煌科技实业有限公司 | Process control object system test device |
| CN101976046A (en) * | 2010-10-12 | 2011-02-16 | 沈阳化工大学 | Method for simulating dynamic characteristic of controlled object and measuring and transducing process |
| CN201910160U (en) * | 2010-10-12 | 2011-07-27 | 沈阳化工大学 | Process control experimental device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103236202A (en) | 2013-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107065515B (en) | Plate heat exchanger model construction method based on fuzzy PID control | |
| CN103236202B (en) | A kind of integrated form process industry dynamic process control experimental provision | |
| CN103743542A (en) | Testing device and method for evaluating resistance reducing effect of porous bionic jet flow surface | |
| CN203260226U (en) | Integrated flow industrial dynamic process control test device | |
| CN201126688Y (en) | Nuclear power plant instrument control synthetic training apparatus | |
| CN104534102A (en) | Static double dynamic balance valve and debugging method thereof | |
| CN102610132A (en) | Instrument/meter mounting and maintaining integrated practical training device | |
| CN103021253A (en) | Open-type hot water boiler heating experimental system | |
| CN101908287B (en) | Experimental facility for demonstrating dynamic characteristics of integration variable process | |
| CN101976046B (en) | Method for simulating dynamic characteristic of controlled object and measuring and transducing process | |
| CN203406006U (en) | Chemical process automation comprehensive training device | |
| CN205841917U (en) | Wisdom static balancing valve | |
| CN110782729A (en) | Simulation training system for coal shale adsorption/desorption evaluation experiment and teaching and practice method | |
| CN201910160U (en) | Process control experimental device | |
| CN201526028U (en) | Controllable environment factor variable speed water circulation system | |
| CN202257988U (en) | Simulation teaching and training system of production device | |
| CN202512745U (en) | Comprehensive practical training device for instrument installation and maintenance | |
| CN103280150A (en) | Chemical process automation comprehensive training device | |
| Krichel et al. | Dynamic modeling of pneumatic transmission lines in Matlab/Simulink | |
| CN204143670U (en) | A kind of Thermal Automation instrument test checking device | |
| CN204990891U (en) | Real device of instructing of flow measurement system | |
| CN204087549U (en) | Process measurement and control integrated practice system | |
| CN203165339U (en) | Multifunctional liquid level control experimental device | |
| CN208548093U (en) | Instrument automation controls comprehensive training race event devices | |
| CN202512800U (en) | Comprehensive practical training device for process control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181229 Address after: 210012 Jiangsu Province Yuhuatai District Software Avenue 168, 3 buildings, 5 floors Patentee after: Jiangsu's software Polytron Technologies Inc Address before: No. 11, economic and Technological Development Zone, Shenyang, Liaoning Province, Liaoning Patentee before: Shenyang University of Chemical Technology |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 3, building 168, 5, 210012 software Avenue, Yuhuatai District, Jiangsu, Nanjing Patentee after: Bozhi Safety Technology Co.,Ltd. Address before: 3, building 168, 5, 210012 software Avenue, Yuhuatai District, Jiangsu, Nanjing Patentee before: JIANGSU ELEX SOFTWARE TECHNOLOGY Co.,Ltd. |