CN103021253A - Open-type hot water boiler heating experimental system - Google Patents
Open-type hot water boiler heating experimental system Download PDFInfo
- Publication number
- CN103021253A CN103021253A CN2011102800188A CN201110280018A CN103021253A CN 103021253 A CN103021253 A CN 103021253A CN 2011102800188 A CN2011102800188 A CN 2011102800188A CN 201110280018 A CN201110280018 A CN 201110280018A CN 103021253 A CN103021253 A CN 103021253A
- Authority
- CN
- China
- Prior art keywords
- hot water
- water boiler
- control
- open
- pipeline
- 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.)
- Pending
Links
Images
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses an open-type hot water boiler heating experimental system which comprises a measuring control instrument disc, a programmable controller, a plurality of relays, a hot water boiler, a circulating pump, a make-up pump, a frequency converter, a connecting body water box, a radiator and an upper computer, and the open-type hot water boiler heating experimental system is characterized in that the programmable controller is connected with a controlling quantity output terminal through a system simulation quantity input terminal on the measuring control instrument disc so as to connect with hardware of the whole system; the programmable controller is connected with the upper computer through a serial interface RS485; and the hot water boiler is communicated with the radiator through a hot water pipeline, the radiator is connected with the circulating pump through a hot following pipeline, and the circulating pump is connected with the hot water boiler through a pipeline. The open-type hot water boiler heating experimental system provided by the invention has the advantages of less consuming material, long service life, low cost, reliable and stable performance, convenience in maintenance, and is suitable for being popularized and used in a teaching experiment link.
Description
Technical field
The present invention mainly is based on the open architecture test subject table of Furnace Temperature Control System of the configuration software KingView of the Programmable Logic Controller of the S7-200 of Siemens Company series and inferior control company.Situation for specialty is developed design, guarantees the experiment organic linking with correlated curriculum.
Background technology
In recent years, increasingly extensive to the research of temperature controller and deep both at home and abroad, particularly along with the development of computer technology, the research and development of temperature controller has obtained huge advancing by leaps and bounds, formed a collection of business-like temperature regulator, meanwhile, intelligent PID, fuzzy control, adaptive control etc., with its performance, control effective, be widely used in the technological transformation of temperature control system and enterprise's relevant device.
In automatic field, the PLC(Programmable Logic Controller) be widely used in the automatically Guaranteed of modern industry with distinguishing features such as its reliability are high, antijamming capability is strong, programming is simple, powerful, cost performance is high, volume is little, energy consumption is low.In the present Industry Control, usually select PLC as the opertaing device at scene, be used for data acquisition and processing, logic judgement, output control; Host computer then is to utilize configuration software to finish the demonstration of Industry Control state, flow process and parameter, realizes the functions such as monitoring, management, analysis and storage.This supervisory system takes full advantage of PLC and computing machine characteristics separately, is widely used.
In institution of higher education, the laboratory is the basic support platform of realizing the training of personnel, scientific research, two large functions, traditional Platform of Experimental Teaching exists many drawbacks, be unfavorable for cultivating creative ability for students, " open " laboratory can be under the condition of resource-constrained, be the place that the student provides performance intelligence and wisdom and cultivates one's individuality, excite the student to the interest of experiment, cultivate student's creativity consciousness and innovation ability.Make the student become " I will do experiment " by " wanting me to do experiment ".Implementing Laboratory Opening is the necessary condition that Scientific Research in University Laboratory really plays a role.In recent years, I progressively move towards all-round opening from partly open in the laboratory, in practice gradual perfection Laboratory Opening mechanism, obtaining good effect aspect the innovation talent cultivating.
Summary of the invention
The purpose of this invention is to provide a kind of open type hot water boiler heating experiment system, this system is according to measure and control technology and instrument speciality undergraduate " Sensors ﹠ Testing Technology ", " computer procedures control technology ", " intelligent instrumentation ", " Networked Supervising system ", the teaching of courses such as " Process Control System and instrument " needs, develop one to be embedded with heating water boiler be the observing and controlling object, in conjunction with water storage box, well heater, make-up pump, thermal meter, the Networked Supervising experimental facilities that various valves and the circulation system etc. form, be used for improving quality of practical teaching, improve experiment teaching means and improve the laboratory technique level, and the Innovation of Program Comprehensive Design and the application power that strengthen the undergraduate.
The technical scheme of taking is:
A kind of open type hot water boiler heating experiment system comprises measurement and control instrument dial plate, Programmable Logic Controller, a plurality of relay, hot-water boiler, ebullator, small pump, frequency converter, disjunctor water tank, heating radiator, host computer; It is characterized in that: described Programmable Logic Controller links to each other with the controlled quentity controlled variable lead-out terminal by the system simulation amount input terminal on the measurement and control instrument dial plate, and then is connected with the hardware of whole system; Programmable Logic Controller is connected with host computer by serial line interface RS485; Described hot-water boiler by hot water pipeline with reach heating radiator and be connected, heating radiator is connected with ebullator with pipeline by heat, ebullator is connected with hot-water boiler by pipeline.
Principle of work of the present invention and running program:
The present invention is in the cover simulation modern industry control procedure, the experiment porch of boiler heating system, its hardware structure diagram such as Fig. 1, master controller adopts the PLC (Programmable Logic Controller) of Siemens, PLC (Programmable Logic Controller) application D/A converter module EM235 gathers the analog quantity at scene, and EM235 has realized 4 road analog inputs and 1 road analog output function.With DIP switch the EM235 expansion module is set, the difference setting of 6 switches can be selected list/bipolarity, gain and the decay of input analog amount.
PLC (Programmable Logic Controller) links to each other with host computer by serial line interface RS485, and the configuration software KingView establishment monitoring interface of the inferior control of application company carries out Detection ﹠ Controling to whole working of an invention situation on the host computer.Integral body of the present invention can be divided into key-course, supervisory layers, three hierarchical structures of administration and supervision authorities.Wherein supervisory layers is to lower connection key-course, and to upper connection management layer, it not only realizes the Real-Time Monitoring at scene and control, and in automatic control system, finish upload assign, the vital role of configuration exploitation.Be conducive to the real-time on-site supervision of experimenter.Comprising warning window, real-time tendency curve etc., can generate easily various forms.
Use close-loop control mode among the present invention and control temperature, pressure, the continually varying analog quantitys such as flow, the PID controller is the abbreviation of proportional-integral-differential control (Proportional-Integral-De-rivative), its advantage is not need accurate control system mathematical model, stronger dirigibility and adaptability are arranged, and the structure of PID controller typical case, program design is simple, be easy on the engineering realize, parameter adjustment is convenient, in the present invention individual controlled quentity controlled variable is carried out PID control, make controlled volume (temperature, pressure, liquid level, flow) is stabilized in expectation value.
Operation steps:
1, after the equipment energising, observe by " measurement and control instrument dial plate ", measurement and control instrument dial plate such as Fig. 2, whether the show state of each instrument is normal, and whether cistern water level is normal.In the normal situation of equipment, at first " control mode " switch was put to " manually " shutdown system water drain valve V4.Then manual adjustments moisturizing control voltage (maximal value 5VDC) makes the full speed running of Frequency Converter Control small pump; Regulate heating voltage, observe the variation speed of temperature; In the monitoring interface of host computer, can observe simultaneously the variation of each amount.By instrument control panel, can control the moisturizing water pump of heating system, heating module, water circulating pump etc., combined sensor and instrument be to data acquisition and demonstration, thereby understand the technique that heating is produced.Do not have to occur to start ebullator, the variation of register system each several part instrument in the situation of " hypotony " or " hypertonia " warning at supplementing water pressure.When this step is carried out, can regulate the ebullator rotating speed and be reduced to gradually 0, the numerical value change of recording manometer B1, B2, B4, B5 and B phase current table.
2, " control mode " switch is put to " terminal ", added 5VDC voltage by moisturizing control terminal " BSK+ and GND ", small pump is transferred to maximum output; Start ebullator.The V4 valve closing.Gather the boiler leaving water temperature by terminal " T1+ and GND ", the digital-to-analogue of the EM235 module of process controller PLC transforms, output 0 ~ 5VDC regulated quantity, be input to the voltage regulating module of experimental system through " JRK+ and GND ", to change the boiler alternating voltage, and then control boiler export temperature constant, detect return water temperature, circulation line flow to understand the heating situation.Flow, environment temperature are main disturbances.Controlled variable: boiler export temperature; Regulated variable: voltage regulating module trigger voltage; Detecting sensor: S1 boiler thermometric K type thermopair.
3, regulate the small pump frequency converter frequency, with change small pump motor speed, thus control backwater (moisturizing) constant pressure.Detect mouth pressure, to understand the relation of moisturizing and circulation.Controlled variable: boiler blow-down water (moisturizing) pressure; Regulated variable: small pump frequency converter frequency; Detecting sensor: B4 distance-transmission pressure gauge.
4, high water tank control: stopped heating, utilize the A of disjunctor water tank, two parts of B utilize small pump from the outside draining of A water tank, open the V4 water drain valve, water filling in the disjunctor water tank B (open disjunctor water tank intermediate connection hole, guarantee that A side water level is lower than intercommunicating pore, B side water level is higher than intercommunicating pore), regulate the small pump frequency converter frequency, to change the small pump motor speed, namely change drain discharge, thereby control right side high water tank is constant.Controlled variable: right side high water tank; Regulated variable: small pump frequency converter frequency; Detecting sensor: the S3 liquid level sensor, after control was stable, aperture that can the appropriate change water drain valve V4 of system was observed the control effect.This control procedure stopped heating.
5, rate of discharge control: stopped heating, A water tank utilize the outside draining of small pump, open the V4 water drain valve, water filling in the disjunctor water tank A.Regulate the small pump frequency converter frequency, to change the small pump motor speed, namely change drain discharge, thereby control flow (speed) is constant.Controlled variable: piping flow; Regulated variable: small pump frequency converter frequency; Detecting sensor: the S4 pipeline flowmeter, after control was stable, aperture that can the appropriate change water drain valve V4 of system was observed the control effect.This control procedure stopped heating.
Advantage of the present invention
1) practicality: the situation that the present invention is directed to theory teaching is developed design, guarantees the experiment organic linking with correlated curriculum.Be the place that the student provides performance intelligence and wisdom and cultivates one's individuality, excite the student to the interest of experiment, cultivate student's creativity consciousness and innovation ability.
2) engineering: the software Siemens PLC C(Programmable Logic Controller that the present invention is commonly used with Industry Control) organically combine with the configuration software KingView, the material of equipment, instrument, instrument and sensor use accessory commonly used on the engineering, and will take into account as far as possible A wide selection of colours and designs.
3) opening: open architecture test subject table.The present invention has drawn the terminal of each analog quantity at control panel, and therefore except can finishing all kinds of experiments, also the designing and developing of thermal technology's unit instrument for Process Control System provides a good experimental test platform.Can support the exploitation of exploitation, the single loop pressure controller of exploitation, the single loop pressure display instrument of the instrument of test such as piping flow integrating instrument, based on the single loop temperature display meter exploitation of thermopair, based on the single loop temperature control instrument exploitation of thermopair, based on the single loop temperature display meter exploitation of PT100, based on the single loop temperature control instrument exploitation of PT100, based on the exploitation of the light beam height displaying instrument of pressure unit.
Design science of the present invention, reasonable, original, demonstrate fully the PLC(Programmable Logic Controller) dirigibility, convenience, the advantages such as accuracy of easy to operate and operation.Improved the efficient of sale of electricity, practicality is stronger, and compact overall structure, consumptive material is few, the life-span is long, with low cost, stable performance, reliable, easy to maintenance, and the present invention suits to promote the use of in the education experiment link.
Description of drawings
Fig. 1 is hardware configuration synoptic diagram of the present invention.
Fig. 2 is system of the present invention control structure synoptic diagram.
Fig. 3 is open terminal structural representation of the present invention.
Embodiment
A kind of open type hot water boiler heating experiment system, comprise measurement and control instrument dial plate 1, PLC(Programmable Logic Controller) 2, a plurality of relay 3, hot-water boiler 4, ebullator 5, small pump 7, frequency converter 6, disjunctor water tank 8, heating radiator 9, as shown in Figure 1, hot-water boiler 4 is the controlled device of whole invention system, circulation after the hot water heating, through heating radiator 9, the simulation heat radiation, cold water is got back in the hot-water boiler through ebullator 5 and is heated; The disjunctor water tank is as the object of moisturizing and control liquid level, and the voltage of frequency converter 6 control small pumps 7 is controlled flow, pressure and liquid level.A kind of control section of open type hot water boiler heating experiment system such as Fig. 2, the PLC(Programmable Logic Controller) 2 CPU adopts 222 such as 10 among Fig. 2, gather the interior temperature of boiler by D/A converter module 11 (EM235), show at measurement and control instrument dial plate 1, simultaneously, after processing through host computer 12, by the PLC(Programmable Logic Controller) heating voltage of 2 control hot-water boilers 4, and then the control temperature.
Leading-out terminal 13, alarm lamp 14, display module 15, working mode change switch 16 that each analog quantity and controlled quentity controlled variable are arranged in the measurement and control instrument dial plate 1, when each measures at alarm region, pilot relay 3 conductings, this moment, alarm lamp lighted, to show warning; Mode of operation is used for changing between manual mode and Terminal control pattern.
Comprise in the leading-out terminal 13 of each analog quantity and controlled quentity controlled variable analog quantity temperature, liquid level, pressure, flow exit 17, add heat control and moisturizing control terminal 18; Open the designing and developing of thermal technology's unit instrument as Process Control System of the present invention provides a good experimental test platform.
Claims (1)
1. an open type hot water boiler heating experiment system comprises measurement and control instrument dial plate (1), Programmable Logic Controller (2), a plurality of relay (3), hot-water boiler (4), ebullator (5), small pump (7), frequency converter (6), disjunctor water tank (8), heating radiator (9), host computer (12); It is characterized in that: described Programmable Logic Controller (2) links to each other with controlled quentity controlled variable lead-out terminal (18) by the system simulation amount input terminal (17) on the measurement and control instrument dial plate (1), and then is connected with the hardware of whole system; Programmable Logic Controller (2) is connected with host computer (12) by serial line interface RS485; Described hot-water boiler (4) is connected with heating radiator (9) by hot water pipeline, and heating radiator (9) is connected with ebullator (5) by hot water pipeline, and ebullator (5) is connected with hot-water boiler (4) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102800188A CN103021253A (en) | 2011-09-21 | 2011-09-21 | Open-type hot water boiler heating experimental system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102800188A CN103021253A (en) | 2011-09-21 | 2011-09-21 | Open-type hot water boiler heating experimental system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103021253A true CN103021253A (en) | 2013-04-03 |
Family
ID=47969807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102800188A Pending CN103021253A (en) | 2011-09-21 | 2011-09-21 | Open-type hot water boiler heating experimental system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103021253A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680898A (en) * | 2013-11-28 | 2015-06-03 | 南京化工职业技术学院 | Portable multi-feature industrial object simulation device and switching method thereof |
| CN107527548A (en) * | 2017-10-16 | 2017-12-29 | 上海电力学院 | Industrial circulating cooling water system synthetic instruction experiment porch |
| CN110322768A (en) * | 2019-06-28 | 2019-10-11 | 北京建筑大学 | A kind of thermal process PID temperature control teaching experimental base |
| CN110867110A (en) * | 2019-11-27 | 2020-03-06 | 徐州翰林科技有限公司 | Horizontal internal combustion organic carrier boiler training device |
| CN114550531A (en) * | 2022-01-29 | 2022-05-27 | 西安理工大学 | Experiment teaching device capable of simulating industrial controlled object |
| CN114863785A (en) * | 2022-06-15 | 2022-08-05 | 长安大学 | Chemical instrument cognitive experimental device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201159498Y (en) * | 2007-11-29 | 2008-12-03 | 周召权 | Automatic constant pressure heating system |
| CN101661678A (en) * | 2009-09-12 | 2010-03-03 | 太原电力高等专科学校 | Hydraulic working condition experimenting and analyzing device |
| CN201562394U (en) * | 2009-07-22 | 2010-08-25 | 厦门理工学院 | Integrated process control experimental model |
| CN201858698U (en) * | 2010-10-26 | 2011-06-08 | 漯河瑞来信节能科技有限公司 | Programmed frequency conversion energy-saving heat exchange station |
| CN202268122U (en) * | 2011-09-21 | 2012-06-06 | 沈阳理工大学 | Open type hot water boiler heating experiment system |
-
2011
- 2011-09-21 CN CN2011102800188A patent/CN103021253A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201159498Y (en) * | 2007-11-29 | 2008-12-03 | 周召权 | Automatic constant pressure heating system |
| CN201562394U (en) * | 2009-07-22 | 2010-08-25 | 厦门理工学院 | Integrated process control experimental model |
| CN101661678A (en) * | 2009-09-12 | 2010-03-03 | 太原电力高等专科学校 | Hydraulic working condition experimenting and analyzing device |
| CN201858698U (en) * | 2010-10-26 | 2011-06-08 | 漯河瑞来信节能科技有限公司 | Programmed frequency conversion energy-saving heat exchange station |
| CN202268122U (en) * | 2011-09-21 | 2012-06-06 | 沈阳理工大学 | Open type hot water boiler heating experiment system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680898A (en) * | 2013-11-28 | 2015-06-03 | 南京化工职业技术学院 | Portable multi-feature industrial object simulation device and switching method thereof |
| CN107527548A (en) * | 2017-10-16 | 2017-12-29 | 上海电力学院 | Industrial circulating cooling water system synthetic instruction experiment porch |
| CN110322768A (en) * | 2019-06-28 | 2019-10-11 | 北京建筑大学 | A kind of thermal process PID temperature control teaching experimental base |
| CN110867110A (en) * | 2019-11-27 | 2020-03-06 | 徐州翰林科技有限公司 | Horizontal internal combustion organic carrier boiler training device |
| CN114550531A (en) * | 2022-01-29 | 2022-05-27 | 西安理工大学 | Experiment teaching device capable of simulating industrial controlled object |
| CN114550531B (en) * | 2022-01-29 | 2023-10-31 | 西安理工大学 | Experimental teaching device capable of simulating industrial controlled object |
| CN114863785A (en) * | 2022-06-15 | 2022-08-05 | 长安大学 | Chemical instrument cognitive experimental device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103021253A (en) | Open-type hot water boiler heating experimental system | |
| CN102852145B (en) | Method and system for intelligently controlling temperature of concretes of dam under construction | |
| CN201828400U (en) | Electromagnetic valve and valve body performance detection device for automatic transmission | |
| CN102878635B (en) | Intelligent energy-saving control system of combined air conditioner and control program thereof | |
| CN104833040B (en) | The temprature control method and temperature controller of air-conditioning system | |
| CN208722465U (en) | Chemical instruments maintenance skills training checking system | |
| CN105739570A (en) | Multi-mode temperature control experiment teaching apparatus | |
| CN105372082A (en) | Energy-saving environment-friendly multifunctional intelligent heat exchanger performance test system | |
| CN112581821A (en) | Simulation training and examination system, method, medium and equipment for wet steam generator special for oil field | |
| CN100456030C (en) | Cold-hot box type heat transfer coefficient detecting instrument | |
| CN205787977U (en) | A kind of automatic warm pressure controller | |
| CN102221469B (en) | Comprehensive test bed for vehicle warmer | |
| CN202268122U (en) | Open type hot water boiler heating experiment system | |
| CN204386715U (en) | For the thermostatically-controlled equipment of engine coolant | |
| CN103308212B (en) | Temperature testing system for instant water heater | |
| CN202255910U (en) | Warmer box type test device | |
| CN201526028U (en) | Controllable environment factor variable speed water circulation system | |
| CN203217829U (en) | Teaching display device of decoupling tank principle | |
| CN111911985A (en) | Building formula heat exchanger unit based on energy consumption analysis | |
| CN203535132U (en) | Electromagnetic cooker energy efficiency automatic testing device | |
| CN102507229A (en) | Warmer box-type experimental device | |
| CN210690095U (en) | Closed energy well energy measurement appearance | |
| CN201688884U (en) | Device for simulating and detecting autogenous volume deformation of concrete | |
| CN105784954B (en) | Experimental device for simulating mineralization of organic nitrogen in river | |
| US20110311209A1 (en) | Transparent fluid recirculation reservoir system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |