CN106769658A - A kind of biphase gas and liquid flow experimental system for simulating based on PLC controls - Google Patents
A kind of biphase gas and liquid flow experimental system for simulating based on PLC controls Download PDFInfo
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- CN106769658A CN106769658A CN201510835865.4A CN201510835865A CN106769658A CN 106769658 A CN106769658 A CN 106769658A CN 201510835865 A CN201510835865 A CN 201510835865A CN 106769658 A CN106769658 A CN 106769658A
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Abstract
The present invention is a kind of biphase gas and liquid flow experimental system for simulating based on PLC controls.With the flow regime monitoring of phase pipe flow, parameter extraction and storage, it is main purpose to set up typical flow pattern database, with PLC as control core, develops a set of small-sized two phase flow experimental provision for being suitable for Automation Specialty engineering practice.Control System Design, with PLC as control core, realizes the control and reference record to Physical Experiment system, that is, realize the generation of biphase gas and liquid flow typical case's flow pattern in Virtual simulation lab system and physical simulation experiment device, and realizes the detection of flow, pressure parameter.Virtual Configuration Design, carries out MCGS configuration simulation Physical Experiment systems, including control interface, system simulation interface and reference record interface, realizes control and reference record to Physical Experiment system.
Description
First, technical field
The invention belongs to two-phase flow field, it is related to the aspects such as PLC controls, flow detection and control.
2nd, background technology
Two phase flow is at least one running system being mutually made up of fluid, and studying the flow behavior of biphase gas and liquid flow can effectively overcome the defect such as easy to wear, perishable in current two phase flow device.PLC is programmable logic controller (PLC), and it uses the editable memory of a class, for its internally stored program, performs order, and by numeral or each class process of analog pattern input/output control.MCGS is monitoring and control general-purpose system, can be with Fast Construction and the configuration software of generation Monitor Computer Control System, the main collection for completing field data and detection, treatment and the control of front end data.
3rd, the content of the invention：
1st, patent purpose
The present invention is with PLC as core, it is intended to which design is a kind of to be used to observe flow pattern of gas-liquid two-phase flow, and carries out the small-sized two phase flow experimental system of biphase gas and liquid flow research experiment.
2nd, technical solution
The system is controlled to core with PLC, it is subject to the analog simulation of MCGS, realize the generation and control to two phase flow typical case flow pattern in Virtual simulation lab system and physical simulation experiment device, and realize the detection of flow, pressure parameter, generation and transient process by controlling opening of valve typical case in observation flow pattern, the direct generation of typical flow pattern can also be realized simultaneously, realize detection and the Control release of the typical two-phase flow state of gas-liquid mixed.
3rd, technique effect and advantage
The present invention is checked in practical engineering project, and the selection of PLC is conducive to the generation and control of flow pattern in physical simulation experiment device, and the effective of MCGS and PLC combines the control and detection be conducive to again to flow pattern in simulation test device
4th, illustrate
Fig. 1：Experimental provision pipeline layout figure；Fig. 2：Simulation control interface figure based on MCGS
5th, specific embodiment
The system is controlled to core with PLC, realize the generation and control to two phase flow typical case flow pattern in Virtual simulation lab system and physical simulation experiment device, and realize the detection of flow, pressure parameter, generation and transient process by controlling opening of valve typical case in observation flow pattern, the direct generation of typical flow pattern can also be realized simultaneously, realize the detection and control of the typical two-phase flow state of gas-liquid mixed.
1. two-phase simulated flow experimental system design
Physics facility is set up, and pressure and flow instrumentation are added in Physical Experiment system, is realized to flow, the real-time detection of pressure parameter.The pipeline layout of experimental provision is as shown in Figure 1：
(1) pipeline of gas liquid two-phase flow experimental provision will meet claimed below：
1. transparent experiment pipeline is used, the characteristics of to observe nowed forming；
2. experiment pipeline wants long enough, import and export is left appropriate stable section.
(2) course of work of experimental provision：
1. the buffered tank of gas from air compressor machine to mixing with liquid into T-shaped pipeline after flow control valve and gas flowmeter, then by entering into viewing section after one section of pipeline.
2. water is, through centrifugal pump, to mix in T-shaped pipe with gas after flow control valve and its corresponding flowmeter by water tank.On the one hand, vertical upflow, into test section, its flow pattern is observed in test section；On the other hand, bottom horizontal flow sheet, into horizontal circuit, is observed in test section convection.
3. in the gas-liquid mixture of outflow test section, air enters air, and current return water tank, can be with circulation experiment.
2. Control System Design
With PLC as control core, the control and reference record to Physical Experiment system are realized, that is, realize the generation of biphase gas and liquid flow typical case's flow pattern in Virtual simulation lab system and physical simulation experiment device, and realize the inspection detection of flow, pressure parameter.
The collection of pressure, flow and each parameter of liquid level, and the regulation control to each pipeline control valve opening are mainly realized in PLC effects in systems, so as to adjust each pipe flow speed to realize required flow pattern.
3. virtual Configuration Design (as shown in Figure 2)
Using MCGS configuration platforms, configuration picture design is carried out according to control requirement, connect easy switching, quick between each picture each other.
MCGS virtual group polymorphic segments are divided into control configuration part and physical object simulating part.Control configuration is exactly to carry out configuration to five parts of custom system, it is completed the monitor task to object in biphase gas and liquid flow virtual experimental provision；Physical object simulating part is that air and liquid twophase flow experiment device is simulated by using MCGS configuration softwares, and transmits data, to reach the purpose of simulated experiment.
The experimental provision debugging and operation of 4.PLC controls
In order to ensure that multiphase flow physics facility can be used normally safely, after the completion of experimental provision design and installation, it should be debugged and trial operation.Using principle overall after first part, first to part of data acquisition, Flow-rate adjustment part in multiphase flow physics facility, examined and determine respectively, debugged in pump control section, then the trial operation of whole control system is carried out, check mistake therein and corrected, by repeatedly debugging, the debugging efforts of control system are finally completed, can be normally operated safely.
Claims (3)
1. it is a kind of based on PLC control biphase gas and liquid flow experimental system for simulating, it is characterised in that：The direct hair of typical flow pattern can be realized
It is raw, realize detection and the Control release of the typical two-phase flow state of gas-liquid mixed.
2. a kind of biphase gas and liquid flow experimental system for simulating based on PLC controls described in claim 1, is further characterized in that：By PLC
Control is coupled together with two phase flow experimental system：Instrumentation is added into the system, and is programmed, be allowed to unified by PLC
Control, realizes the detection of flow, pressure parameter.
3. a kind of biphase gas and liquid flow experimental system for simulating based on PLC controls described in claim 1, is entered using MCGS configuration softwares
Row simulation configuration, realizes detection and the Control release of the typical gas liquid two-phase flow state of gas and water combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835865.4A CN106769658A (en) | 2015-11-25 | 2015-11-25 | A kind of biphase gas and liquid flow experimental system for simulating based on PLC controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835865.4A CN106769658A (en) | 2015-11-25 | 2015-11-25 | A kind of biphase gas and liquid flow experimental system for simulating based on PLC controls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106769658A true CN106769658A (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510835865.4A Pending CN106769658A (en) | 2015-11-25 | 2015-11-25 | A kind of biphase gas and liquid flow experimental system for simulating based on PLC controls |
Country Status (1)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393642A (en) * | 2011-10-21 | 2012-03-28 | 东北大学 | Control device and control method for gas-liquid dual-phase current pipe |
| CN204007186U (en) * | 2014-07-11 | 2014-12-10 | 松扬电子材料(昆山)有限公司 | Non-oxidation baking oven warning system based on PLC and MCGS monitoring |
-
2015
- 2015-11-25 CN CN201510835865.4A patent/CN106769658A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393642A (en) * | 2011-10-21 | 2012-03-28 | 东北大学 | Control device and control method for gas-liquid dual-phase current pipe |
| CN204007186U (en) * | 2014-07-11 | 2014-12-10 | 松扬电子材料(昆山)有限公司 | Non-oxidation baking oven warning system based on PLC and MCGS monitoring |
Non-Patent Citations (1)
| Title |
|---|
| 孙红跃 等: "用于工程训练的多相流实验系统设计与实现", 《天津城市建设学院学报》 * |
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Application publication date: 20170531 |