CN101441472B - Intelligent control system of water pressure test in cavity - Google Patents
Intelligent control system of water pressure test in cavity Download PDFInfo
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- CN101441472B CN101441472B CN 200710187334 CN200710187334A CN101441472B CN 101441472 B CN101441472 B CN 101441472B CN 200710187334 CN200710187334 CN 200710187334 CN 200710187334 A CN200710187334 A CN 200710187334A CN 101441472 B CN101441472 B CN 101441472B
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Abstract
The invention discloses an intelligent control system for a hydraulic pressure test in a cavity. The intelligent control system consists of a distributed control module, a data acquisition module, a pressure-relief control module and a servo system, wherein the distributed control module consists of an analog value input module, an analog value output module, a switching value module and a test control workbench and software; the data acquisition module consists of a pressure sensor and a signal processing module; the pressure control module consists of a low-pressure control module, an exhaust electromagnetic valve and a drainage electromagnetic valve; and the servo system consists of a servo drive, a servo motor and a flow-adjustable plunger metering pump. The system realizes automatic pressurization, pressure maintenance, timing, pressure relief, real-time detection, data acquisition, analysis and processing, real-time analog simulation output of the pressure in a combustion chamber and so on, and improves control precision.
Description
Technical field
The present invention relates to hydraulic pressure TT﹠C system in a kind of chamber, a kind of especially intelligent control system of water pressure test in cavity belongs to test control field.
Background technology
The pressurization of the indoor hydraulic pressure test of engine combustion is at present mainly finished by crawl or interlock control force (forcing) pump, its major control scheme as shown in Figure 1, the groundwork process is: energized L at first
1, L
2, L
3, depress starting switch SB
2, contactor KM
1Circuit is connected, and electronic force (forcing) pump work starting begins the firing chamber pressurization until reaching the pressure registration, is depressed shutdown switch SB
3, starting switch SB
2Disconnect contactor KM
1Down circuitry, force (forcing) pump stops pressurized operation.In pressure maintaining period,, then the firing chamber is replenished pressurization, until reaching requirement by point driving switch control force (forcing) pump if pressure leakages is arranged.
The subject matter of this pressurized control scheme is: the pressurized control precision is not high, automaticity is low, test figure is inaccurate.
Need to develop a kind of device and the technology that can carry out Based Intelligent Control to hydraulic pressure test in the firing chamber for this reason.
Summary of the invention
The purpose of this invention is to provide a kind of intelligent control system of water pressure test in cavity.
A kind of intelligent control system of water pressure test in cavity of the present invention mainly is made up of distributed control module, data acquisition module, pressure control module and servo-drive system.Wherein distributed control module is made up of analog quantity load module, analog output module, switching value module and observing and controlling workbench and software again; Data acquisition module is made up of pressure transducer, signal processing module again; Pressure control module is made up of low-pressure control module and exhaust, drain solenoid valve again; Servo-drive system is made up of servo-driver, servomotor, adjustable flow plunger type metering pump again.
Its working method is: the analog output module of distributed control module drives the adjustable flow plunger type metering pump by servo-driver control servomotor chamber is pressurizeed, in pressure process, data acquisition module is monitored the pressure in the chamber in real time by pressure transducer, and testing result fed back to the analog quantity load module of distributed control module through data processing, according to firing chamber current pressure value, after the observing and controlling workbench is handled (pid algorithm) through data analysis, analog output module by distributed control module is regulated the rotating speed that servo-driver is controlled servomotor, reaches the control function of goal pressure.After the off-test, the pressure release control system by low-pressure control module control exhaust, drain solenoid valve controls snubber assembly and the chamber analogue means carries out pressure release.
Its workflow is as follows:
1. connect notebook computer and switch board serial line interface, power on to switch board, start notebook computer, click on the desktop [hydraulic pressure monitoring], pressurization, pressurize curve and dwell time are set in the TT﹠C software operation;
2. driving the adjustable flow plunger type metering pump by servo-driver control servomotor pressurizes to chamber, in pressure process, data acquisition module is monitored the pressure in the chamber in real time by pressure transducer, and testing result fed back to the analog quantity load module of distributed control module through data processing, according to firing chamber current pressure value, after the observing and controlling worktable is handled (pid algorithm) through data analysis, regulate the rotating speed of servomotor again by the analog output module control servo-driver of distributed control module, with the curve that suitable pressing speed is set actual force value convergence, reach the purpose of controlled pressure;
3. in chamber internal water pressure desired value, TT﹠C system begins to carry out pressurize by preset time, if the monitoring cavity indoor pressure has leakage, then data acquisition module is controlled servo drive system through data analysis processing (pid algorithm) back by output module and is adjusted by the result of pressure transducer to the real-time monitoring of the pressure in the chamber;
4. after the off-test, the pressure release control system was united, and low-pressure control module is controlled exhaust, drain solenoid valve controls snubber assembly and the chamber analogue means carries out pressure release.
Advantage of the present invention is:
Realize by intelligence control circuit, servo-drive system and TT﹠C software, have following function: automatically pressurization, pressurize, timing, pressure release, detection in real time, data acquisition, analysis, processing, chamber pressure real time modelling emulation output etc. function, realized to hydraulic pressure test robotization, improved control accuracy and job security.
Description of drawings
The indoor hydraulic pressure test pressurized control of the engine combustion principle schematic of Fig. 1-in the past;
Fig. 2-hydraulic pressure test control system theory of constitution block diagram of the present invention;
Fig. 3-hydraulic pressure test control system TT﹠C software process flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Shown in Fig. 2,3,4, the present invention mainly is made up of distributed control module, data acquisition module, pressure control module and servo-drive system.Wherein distributed control module is made up of 7012F analog quantity load module, 7021 analog output modules, 7060D switching value module and RS485 observing and controlling workbench and software systems again; Data acquisition module is made up of pressure transducer HST2011B, signal processing module AM-T-I4/U10 again; Pressure control module is made up of low-pressure control module JTX-3C and exhaust, drain solenoid valve B4023/1001/.182 DN15 2/529-37-0615-.242 again; Servo-drive system is made up of servo-driver HSV-16-050, servomotor GK6063-6, adjustable flow plunger type metering pump JZ-2 7/50 again.
Described 7012F analog quantity load module is used to gather the chamber hydraulic pressure data by the pressure sensor monitoring of data acquisition module input; Described 7021 is analog output module, output draws the full dose output u (k) of servomotor control voltage according to the computing machine pid algorithm, provide the rotating speed of the FEEDBACK CONTROL voltage of needs with the control servomotor, flow with control adjustable flow plunger type metering pump, with the curve that suitable pressing speed is set actual force value convergence, reach the purpose of control chamber chamber pressure; Described 7060D has 2 tunnel outputs for the switching value module, and the function of the 1 tunnel output is with the low-pressure control module combination servo-drive system to be controlled, and the flow with control adjustable flow plunger type metering pump reaches goal pressure; The function of the 2 tunnel output is to cooperate with the pressure release control system, by low-pressure control module control exhaust, drain solenoid valve controls the hydraulic pressure snubber assembly and the chamber analogue means carries out pressure release.
Its workflow is described below in conjunction with TT﹠C software Fig. 4:
1. connect notebook computer and switch board serial line interface, power on to switch board, start notebook computer, click on the desktop [hydraulic pressure monitoring], pressurization, pressurize curve and dwell time are set in the TT﹠C software operation;
2. driving the adjustable flow plunger type metering pump by servo-driver control servomotor pressurizes to chamber, in pressure process, data acquisition module is monitored the pressure in the chamber in real time by pressure transducer, and testing result fed back to the analog quantity load module of distributed control module through data processing, according to firing chamber current pressure value, after the observing and controlling worktable is handled (pid algorithm) through data analysis, regulate the rotating speed of servomotor again by the analog output module control servo-driver of distributed control module, with the curve that suitable pressing speed is set actual force value convergence, reach the purpose of controlled pressure;
3. in chamber internal water pressure desired value, TT﹠C system begins to carry out pressurize by preset time, if the monitoring cavity indoor pressure has leakage, then data acquisition module is controlled servo drive system through data analysis processing (pid algorithm) back by output module and is adjusted by the result of pressure transducer to the real-time monitoring of the pressure in the chamber;
4. after the off-test, the pressure release control system was united, and low-pressure control module is controlled exhaust, drain solenoid valve controls snubber assembly and the chamber analogue means carries out pressure release.
Intelligent control system of water pressure test in cavity of the present invention, realized internal hydraulic pressure test pressurization, pressurize, timing, pressure release robotization, improved control accuracy and security, and have function to hydraulic pressure pressure real-time analogue computer emulation output in the firing chamber.
Claims (1)
1. intelligent control system of water pressure test in cavity, be made up of distributed control module, data acquisition module, pressure control module and servo-drive system, wherein distributed control module is made up of analog quantity load module, analog output module, switching value module and observing and controlling workbench and software; Data acquisition module is made up of pressure transducer, signal processing module again; Pressure control module is made up of low-pressure control module and exhaust, drain solenoid valve again; Servo-drive system is made up of servo-driver, servomotor, adjustable flow plunger type metering pump again; It is characterized in that its working method is: the analog output module of distributed control module drives the adjustable flow plunger type metering pump by servo-driver control servomotor chamber is pressurizeed, in pressure process, data acquisition module is monitored the pressure in the chamber in real time by pressure transducer, and testing result fed back to the analog quantity load module of distributed control module through data processing, according to firing chamber current pressure value, after the observing and controlling workbench is handled through data analysis, regulate the rotating speed of servo-driver control servomotor by the analog output module of distributed control module, reach the control function of goal pressure, after the off-test, the pressure release control system is controlled exhaust by low-pressure control module, drain solenoid valve controls snubber assembly and the chamber analogue means carries out pressure release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710187334 CN101441472B (en) | 2007-11-20 | 2007-11-20 | Intelligent control system of water pressure test in cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710187334 CN101441472B (en) | 2007-11-20 | 2007-11-20 | Intelligent control system of water pressure test in cavity |
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| CN101441472A CN101441472A (en) | 2009-05-27 |
| CN101441472B true CN101441472B (en) | 2010-08-25 |
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| CN 200710187334 Expired - Fee Related CN101441472B (en) | 2007-11-20 | 2007-11-20 | Intelligent control system of water pressure test in cavity |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865182A (en) * | 2010-07-19 | 2010-10-20 | 中国航空工业集团公司西安飞机设计研究所 | Airplane hydraulic test distributed test system and method thereof |
| CN102608995B (en) * | 2012-03-16 | 2013-11-13 | 吉林大学 | Test bed for hydraulic brake actuating mechanism |
| CN103676919B (en) * | 2012-08-30 | 2017-09-29 | 研祥智能科技股份有限公司 | A kind of test system of industrial control equipment |
| CN109115972A (en) * | 2018-08-01 | 2019-01-01 | 陈亚洲 | A kind of one-dimensional rock pillar simulated water pressure of acquisition groundwater parameter is from numeration factually experiment device |
| CN110388342B (en) * | 2019-07-22 | 2020-09-04 | 深圳东风汽车有限公司 | Control method for reducing overflow protection time of hydraulic system |
| CN111665018B (en) * | 2020-06-16 | 2021-07-13 | 苏州维格纳信息科技有限公司 | Deep sea pressure simulation test device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704836Y (en) * | 2004-02-13 | 2005-06-15 | 广西工学院 | Cooled water pump performance testing system of vehicle engine |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704836Y (en) * | 2004-02-13 | 2005-06-15 | 广西工学院 | Cooled water pump performance testing system of vehicle engine |
Non-Patent Citations (1)
| Title |
|---|
| JP昭59-54708A 1984.03.29 |
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