CN105091334A - Solid-electrical-heating device control system based on Labview - Google Patents
Solid-electrical-heating device control system based on Labview Download PDFInfo
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- CN105091334A CN105091334A CN201410189420.9A CN201410189420A CN105091334A CN 105091334 A CN105091334 A CN 105091334A CN 201410189420 A CN201410189420 A CN 201410189420A CN 105091334 A CN105091334 A CN 105091334A
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Abstract
The invention provides a solid-electrical-heating device control system based on Labview, and the system comprises a detector, an executor and a controller, wherein the detector is used for detecting the pressure of a solid-heating device, the water outlet temperature and the water inlet temperature of a heat exchanger; the executor is used for respectively driving a speed adjustable fan, a pressure control valve and a water inlet valve according to a speed governing signal of the fan, a pressure control signal and a water inlet valve control signal; the controller is respectively connected with the detector and the executor, and is used for generating the speed governing signal of the fan, the pressure control signal and the water inlet valve control signal according to the pressure of the solid-heating device, the water outlet temperature and the water inlet temperature of the heat exchanger detected by the detector. The solid-electrical-heating device can be automatically controlled in a safe and reliable manner by the control system, thus the safe and reliable operation of the solid-electrical-heating device can be guaranteed.
Description
Technical field
The present invention relates to electrical engineering technical field, particularly a kind of solid electric heater unit control system based on Labview.
Background technology
Traditional heating boiler is all coal-burning boiler, and its initial cost is less, and heating cost is also lower, but very serious to atmosphere pollution, and country determines progressively to eliminate existing coal-burning boiler in big and medium-sized cities; Although employing fuel oil, combustion gas can reduce atmospheric pollution level, heating operation costly.And the higher main cause of electric boiler operating cost is that the electricity charge are higher.If can reduce the electricity charge, electric boiler operating cost also will correspondingly reduce.The appearance of Peak-valley TOU power price brings opportunity to the application of the development of electric boiler and electric heat-storage technology.
At night during electric low ebb, unit utilizes cheap trough-electricity Automatic-heating, converts electric energy to heat energy and is stored in thermal store, according to user's heat demand progressively automatic control release, by input cool water heating after, multi-period, regularly, arbitrary temp export.Traditional control system is poor owing to cooperatively interacting between closure, instrument; Hardware price is expensive, generally cannot mutually utilize, and upgrade cost is higher between instrument, and upgrading must be made house calls; Function singleness, can only connect limited autonomous device, and instrumental function only has producer to define; Development and maintenance expense is high, and the technology innovation cycle is long.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, the object of the invention is to propose a kind of solid electric heater unit control system based on Labview.This control system can control solid electric heater unit automatically safely and reliably, ensures that solid electric heater unit runs safely and reliably.
To achieve these goals, the embodiment of first aspect present invention proposes a kind of solid electric heater unit control system based on Labview, described solid electric heater unit comprises heating resistor, speed adjustable fan, thermal store and heat exchanger, described control system comprises: checkout gear, and described checkout gear is for detecting the pressure of solid heater, the outlet temperature of heat exchanger and water inlet temperature; Actuator, described actuator is used for driving described adjustable speed blower fan, pressure-control valve and water intaking valve respectively according to fan speed regulation signal, pressure controling signal and water intaking valve control signal; Controller, described controller is connected with described actuator with described checkout gear respectively, generates described fan speed regulation signal, pressure controling signal and water intaking valve control signal for the described pressure of solid heater, the outlet temperature of heat exchanger and the water inlet temperature detected according to described checkout gear.
The invention has the beneficial effects as follows:
1, operation interface figure, operating process is simple, directly perceived, and user only can need operate through simple training;
2, with display each control point real-time measurement values of form and curve mode and historical data;
3, the functions such as trend curve, data sheet, overload alarm are provided, expansion can be required according to application;
4, any one day, the data in January, a year can be inquired about, and can the display of chart and figure mode and printing be carried out;
5, the bound alarming value of each control point can be set, and record alarming value, alarm history record can be inquired about, when tested value exceedes bound alarming value, easily realize unmanned by acousto-optic, automatic speech alarming, note;
6, statistical conversion function, external mobile memory device or printing device can perform data export function;
7, network edition function can realize long-range strange land multi-user and uses simultaneously;
8, operating personnel need authorize just can enquiry of historical data, carry out the operation such as data analysis, printing.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is control principle drawing of the present invention;
Fig. 2 is system construction drawing of the present invention;
Fig. 3 is general function block diagram of the present invention;
Fig. 4 is temperature point layout drawing of the present invention;
Fig. 5 is control system workflow diagram of the present invention; And
Fig. 6 is the monitoring interface figure based on LabView of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Shown in composition graphs 1 to 6, technical scheme of the present invention is: solid electric heater unit comprises heating resistor, adjustable speed blower fan, thermal store and heat exchanger.The rotating speed of adjustable speed blower fan is controlled by the temperature gathering thermal store, with the size regulating it to export wind speed, during quantity of heat given up, the wind that adjustable speed blower fan exports makes open-type blind open, by the gap in thermal store, blow to heat exchanger, hot-air makes the water temperature of heat exchanger raise, to realize heating, simultaneously, the air channel of air again in outer wall reducing temperature is back to thermal store, absorbs heat energy.Gather the temperature of heat exchanger delivery port and water inlet, control the inlet valve of water inlet, realize delivery port water temperature adjustable.Gather unit internal pressure, controlled pressure by-pass valve control, realizes the safe operation of equipment.The data collected can show in real time at Labview monitoring interface, and control mode is divided into automatically and manual two kinds, realizes equipment unmanned and Long-distance Control.
Wherein, control system comprises: checkout gear, and described checkout gear is for detecting the pressure of solid heater, the outlet temperature of heat exchanger and water inlet temperature; Actuator, described actuator is used for driving described adjustable speed blower fan, pressure-control valve and water intaking valve respectively according to fan speed regulation signal, pressure controling signal and water intaking valve control signal; Controller, described controller is connected with described actuator with described checkout gear respectively, generates described fan speed regulation signal, pressure controling signal and water intaking valve control signal for the described pressure of solid heater, the outlet temperature of heat exchanger and the water inlet temperature detected according to described checkout gear.Wherein, checkout gear comprises pressure sensor and temperature sensor.Controller is single-chip microcomputer.
The present invention adopts autonomous learning-pid control algorithm, and control chart as shown in Figure 1, carries out temperature control under the condition of larger temperature controlling range, achieves good temperature control effect.Autonomous learning-PID complex controll both had artificial intelligence flexible, respond fast and adaptable feature, have again the advantage that PID control accuracy is high, the strong and good dynamic property of robustness, embodies the self-learning characteristics of robot.Comparatively large and have during interference and still can obtain good control effects at Parameters variation.
Present embodiment based on LabVIEW platform, as shown in Figure 2, as shown in Figure 3, control system workflow diagram as shown in Figure 5, comprises the following steps general function block diagram system construction drawing:
Step 1: the real-time voltage value of the temperature collection circuit read in data collecting card, treatedly converts real time temperature to, compares, if enter step 2 higher than preset upper limit value, enter step 3 lower than preset upper limit value with preset upper limit temperature value.The layout of temperature point as shown in Figure 4.
Step 2: stop heating and tuning up inlet valve.
Step 3: the real time temperature converted to compares with the lower limit temperature preset, if return step 1 higher than preset lower limit value, enters step 4. lower than preset lower limit value
Step 4: close inlet valve, increases the voltage on heater.
Fig. 6 is the monitoring interface based on LabVIEW, in 1 temperature upper limit and the lower limit that system can be set, system after starting of clicking just brings into operation; Current time and system operation time is shown in 2; Outlet temperature and water inlet temperature can be shown in real time in 3; The real-time curve of outlet temperature and water inlet temperature can be shown in 4; Can regulate the speed of blower fan in 5, the speed of blower fan is divided automatically and manual two kinds of control modes; In 6, displays temperature surmounts the upper limit and the alarm times lower than lower limit; Pressure gauge reading and Valve controlling switch is shown in 7.
The invention has the beneficial effects as follows:
1, operation interface figure, operating process is simple, directly perceived, and user only can need operate through simple training;
2, with display each control point real-time measurement values of form and curve mode and historical data;
3, the functions such as trend curve, data sheet, overload alarm are provided, expansion can be required according to application;
4, any one day, the data in January, a year can be inquired about, and can the display of chart and figure mode and printing be carried out;
5, the bound alarming value of each control point can be set, and record alarming value, alarm history record can be inquired about, when tested value exceedes bound alarming value, easily realize unmanned by acousto-optic, automatic speech alarming, note;
6, statistical conversion function, external mobile memory device or printing device can perform data export function;
7, network edition function can realize long-range strange land multi-user and uses simultaneously;
8, operating personnel need authorize just can enquiry of historical data, carry out the operation such as data analysis, printing.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.
Claims (3)
1. based on a solid electric heater unit control system of Labview, it is characterized in that, described solid electric heater unit comprises heating resistor, speed adjustable fan, thermal store and heat exchanger, and described control system comprises:
Checkout gear, described checkout gear is for detecting the pressure of solid heater, the outlet temperature of heat exchanger and water inlet temperature;
Actuator, described actuator is used for driving described adjustable speed blower fan, pressure-control valve and water intaking valve respectively according to fan speed regulation signal, pressure controling signal and water intaking valve control signal;
Controller, described controller is connected with described actuator with described checkout gear respectively, generates described fan speed regulation signal, pressure controling signal and water intaking valve control signal for the described pressure of solid heater, the outlet temperature of heat exchanger and the water inlet temperature detected according to described checkout gear.
2. system according to claim 1, is characterized in that, described checkout gear comprises pressure sensor and temperature sensor.
3. system according to claim 1, is characterized in that, described controller is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410189420.9A CN105091334A (en) | 2014-05-07 | 2014-05-07 | Solid-electrical-heating device control system based on Labview |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410189420.9A CN105091334A (en) | 2014-05-07 | 2014-05-07 | Solid-electrical-heating device control system based on Labview |
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| CN105091334A true CN105091334A (en) | 2015-11-25 |
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| CN201410189420.9A Pending CN105091334A (en) | 2014-05-07 | 2014-05-07 | Solid-electrical-heating device control system based on Labview |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237604A (en) * | 2018-11-02 | 2019-01-18 | 安徽安泽电工有限公司 | It is a kind of based on the energy-accumulating solid of Internet of Things for water-tube boiler early warning system |
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Effective date of registration: 20190926 Address after: 110166 Liaoning city of Shenyang province and a zone of peace Lane 6 room 1006 Applicant after: SHENYANG LANHAO NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: 110027, No. 12, No. 3, development road, Shenyang economic and Technological Development Zone, Liaoning, China Applicant before: SHENYANG LANHAO NEW ENERGY Co.,Ltd. |
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Application publication date: 20151125 |