CN103135636A - Liquid heating control system - Google Patents
Liquid heating control system Download PDFInfo
- Publication number
- CN103135636A CN103135636A CN 201110380816 CN201110380816A CN103135636A CN 103135636 A CN103135636 A CN 103135636A CN 201110380816 CN201110380816 CN 201110380816 CN 201110380816 A CN201110380816 A CN 201110380816A CN 103135636 A CN103135636 A CN 103135636A
- Authority
- CN
- China
- Prior art keywords
- processor
- temperature
- heating
- detecting unit
- control system
- 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
- Control Of Temperature (AREA)
Abstract
The invention discloses a liquid heating control system. The system comprises a temperature detection unit which is used for detecting the initial temperature, a weight detection unit which is used for detecting the weight of the liquid to be heated, a power detection device which is used for detecting the heating power of a heater, a parameter input unit which is used for inputting the target temperature value and the specific heat capacity of the liquid to be heated, a clock circuit which is used for counting the heating time of the heater, a subtracter which is used for obtaining the temperature variation in accordance with the subtracting comparison, a multiplying unit which is used for obtaining the heat absorbed by the liquid to be heated from the initial temperature to the target temperature through the conversion, a divider which is used for obtaining the heating time required by the heater through the conversion and a processor which is used for controlling the heater in accordance with output results of the divider. The system is reasonable in design, convenient to wire, use and operate and good in use effect. The problems that in the prior system, the use and the operation are inconvenient, a plurality of temperature detection devices are used for detecting, the data processing capacity is large and the temperature detection accuracy is low are solved.
Description
Technical field
The present invention relates to a kind of automatic control system, especially relate to a kind of heating liquid control system.
Background technology
In industrial processes, often need to be with a certain liquid heater preset temperature, as the softening water in softening water tank being preheated to uniform temperature (specifically reaching 40 ℃ of left and right), thereby all need a sleeving temperature control system.nowadays, the temperature control system that adopts is all generally by processor, temperature-detecting device and well heater form an one-parameter closed-loop control system, actual carrying out in the adjustment control procedure, by temperature-detecting device, the temperature that is heated liquid is detected in real time and with institute's detected temperatures information synchronous feedback to processor, processor is controlled well heater according to temperature-detecting device institute detected temperatures information again, reach the purpose that stepless control is heated fluid temperature, be heated fluid temperature and remain at design temperature, thereby the accuracy of detection of temperature-detecting device is to carry out the prerequisite that temperature is accurately controlled.
Thermal conductivity due to various liquid in practice is different, especially for the relatively poor liquid of thermal conductivity, and large when heating container, when needing the heating fluid scale of construction larger, temperature-detecting device is relatively poor to the temperature detecting precision that is heated liquid, and in the synchronization heating container, may there be difference slightly in the fluid temperature situation of a plurality of diverse locations.At present, usually adopt a plurality of temperature-detecting devices of laying carry out multiposition, multizone detection or only fluid temperature in the middle part of container detected two kinds of temperature checking methods, but in actual use procedure, above-mentioned two kinds of temperature checking methods all exist to use operation inconvenience to some extent, need to lay that a plurality of temperature-detecting devices detect, input cost is large, data processing amount is large, the not high practical problems of temperature detecting precision.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of heating liquid control system is provided, it is reasonable in design, easy-to-connect, use is easy and simple to handle and result of use good, can solve use operation inconvenience that existing temperature control system exists, need to lay that a plurality of temperature-detecting devices detect, data processing amount is large, the not high practical problems of temperature detecting precision.
for solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of heating liquid control system, it is characterized in that: comprise the front temperature detecting unit that the initial temperature of heating container domestic demand heating liquid is detected of heating, the weight detecting unit that the weight of described heating container domestic demand heating liquid is detected, heating power to well heater that described heating container adopts carries out the power detection device of detection in real time, be used for input target temperature value and the parameter input unit that needs heating liquid specific heat capacity C, to the clock circuit of adding up the heat time heating time of well heater, the initial temperature value that the target temperature value inputted by parameter input unit and temperature detecting unit are detected do poor relatively and draw the subtracter of temperature variation Δ t, conversion draws the multiplier that absorbs heat Q when needing the heating liquid temperature to rise to target temperature value by initial temperature, convert the to get divider of from heater core required heat time heating time t and the processor according to the Output rusults of divider well heater controlled corresponding to the testing result of the Output rusults of multiplier and power detection device, described temperature detecting unit, the weight detecting unit, power detection device, parameter input unit and well heater all join with processor, the output terminals A of described processor and B join with two input ends of subtracter respectively, and the output terminal C of the output terminal of subtracter and processor and D join with three input ends of multiplier respectively, and the output terminal E of processor and the output terminal of multiplier join with two input ends of divider respectively, output terminal and the processor of described divider join.
The aforesaid liquid heating control system is characterized in that: described processor is the ARM microprocessor.
The aforesaid liquid heating control system is characterized in that: also comprise and joining with processor and with the network insertion device of processor access to LAN.
The aforesaid liquid heating control system, it is characterized in that: also comprise signal conditioning circuit one, signal conditioning circuit two and signal conditioning circuit three, described temperature detecting unit joins by signal conditioning circuit one and temperature detecting unit, the weight detecting unit joins by signal conditioning circuit two and temperature detecting unit, and power detection device joins by signal conditioning circuit three and temperature detecting unit.
The aforesaid liquid heating control system is characterized in that: also comprise in well heater heating process the convert need heating liquid Current Temperatures that draws of divider is carried out the display unit of simultaneous display, described display unit and processor join.
The aforesaid liquid heating control system is characterized in that: described temperature detecting unit is thermopair.
The aforesaid liquid heating control system is characterized in that: also comprise the data storage cell that joins with processor.
The present invention compared with prior art has the following advantages:
1, reasonable in design, simple in structure, input cost is low and install to lay convenient.
2, the simple and easy-to-connect of circuit.
3, use simple to operate and display effect is directly perceived, parameter adjustment convenient.
4, intelligent degree is high, in actual use procedure, the present invention first inputs target temperature value T by parameter input unit, and detect and testing result is sent to processor by temperature detecting unit and weight detecting unit initial temperature T0 and the weight m to the need heating liquid, adopt power detection device that the heating power P of well heater is detected in real time and testing result is sent to processor in heating process, subtracter calculates temperature increment value Δ t=T-T0, multiplier calculates the heat that absorbs when need heating liquid temperature rises to target temperature value by initial temperature according to formula Q=Cm Δ t, calculation draws t heat time heating time required when needing heating liquid to be heated to target temperature by initial temperature to divider 8 according to formula t=Q/P, well heater is controlled according to t heat time heating time that calculates by processor afterwards, implement very easy, and can effectively avoid due to the lower actual defects of the lower control accuracy of bringing of water temperature conductivity.
5, good, the flexible operation mode of result of use and practical value are high, and temperature detecting precision is high, does not need to lay a plurality of points for measuring temperature.
6, processing and fabricating is convenient, can realize the mass processing.
7, widely applicable, popularizing application prospect is extensive, can effectively promote applicable to other relevant water temperature control system.
In sum, the present invention is reasonable in design, easy-to-connect, use is easy and simple to handle and result of use good, can effectively solve use operation inconvenience that existing temperature control system exists, need to lay that a plurality of temperature-detecting devices detect, data processing amount is large, the not high practical problems of temperature detecting precision.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present invention.
Description of reference numerals:
The 1-temperature detecting unit; 2-weight detecting unit; The 3-power detection device;
The 4-parameter input unit; The 5-well heater; The 6-subtracter;
The 7-multiplier; The 8-divider; The 9-processor;
The 10-clock circuit; 11-signal conditioning circuit one; 12-signal conditioning circuit two;
13-signal conditioning circuit three; 14-network insertion device; The 15-display unit;
The 16-data storage cell.17-heated condition indicating member; 18-alarm indicating member;
Embodiment
as shown in Figure 1, the present invention includes the front temperature detecting unit 1 that the initial temperature of heating container domestic demand heating liquid is detected of heating, the weight detecting unit 2 that the weight of described heating container domestic demand heating liquid is detected, heating power to well heater that described heating container adopts 5 carries out the power detection device 3 of detection in real time, be used for input target temperature value and the parameter input unit 4 that needs heating liquid specific heat capacity C, to the clock circuit 10 of adding up the heat time heating time of well heater 5, the initial temperature value that target temperature value by parameter input unit 4 input and temperature detecting unit 1 are detected makes to differ from relatively and draw the subtracter 6 of temperature variation Δ t, conversion draws the multiplier 7 that absorbs heat Q when needing the heating liquid temperature to rise to target temperature value by initial temperature, convert the to get divider 8 of from heater core 5 required heat time heating time t and the processor 9 according to the Output rusults of divider 8 well heater 5 controlled corresponding to the testing result of the Output rusults of multiplier 7 and power detection device 3, described temperature detecting unit 1, weight detecting unit 2, power detection device 3, parameter input unit 4 and well heater 5 all join with processor 9.The output terminals A of described processor 9 and B join with two input ends of subtracter 6 respectively, and the output terminal C of the output terminal of subtracter 6 and processor 9 and D join with three input ends of multiplier 7 respectively, and the output terminal E of processor 9 and the output terminal of multiplier 7 join with two input ends of divider 8 respectively.The output terminal of described divider 8 and processor 9 join.
in actual use procedure, first by parameter input unit 4 input target temperature value T and the specific heat capacity C that needs heating liquid, 1 pair of temperature detecting unit needs the initial temperature T0 of heating liquid detect and testing result is sent to processor 9, weight m by the 2 pairs of need heating liquids in weight detecting unit detects and testing result is sent to processor 9 simultaneously, adopt the heating power P of 3 pairs of well heaters 5 of power detection device detect in real time and testing result is sent to processor 9 in heating process, processor 9 is delivered to initial temperature T0 and target temperature value T respectively two input ends of subtracter 6 by output terminals A and B, subtracter 6 is corresponding to be calculated temperature increment value Δ t=T-T0 and synchronously delivers to multiplier 7, processor 9 need heating liquid weight m by output terminal C and D and specific heat capacity C synchronously deliver to multiplier 7, multiplier 7 calculates the heat that absorbs when needing the heating liquid temperature to rise to target temperature value by initial temperature and result of calculation is delivered to divider 8 according to formula Q=Cm Δ t, processor 9 is delivered to divider 8 by output terminal E with the heating power P of well heater 5, and divider 8 is according to formula t=Q/P, calculates well heater 5 required heat time heating time, afterwards, well heater 5 is controlled according to t heat time heating time that calculates by processor 9.
In the present embodiment, described processor 9 is the ARM microprocessor.
Simultaneously, for monitoring conveniently, the present invention also comprises joins with processor 9 and with the network insertion device 14 of processor 9 access to LAN.
In the present embodiment, the present invention also comprises signal conditioning circuit 1, signal conditioning circuit 2 12 and signal conditioning circuit 3 13, described temperature detecting unit 1 joins by signal conditioning circuit 1 and temperature detecting unit 1, weight detecting unit 2 joins by signal conditioning circuit 2 12 and temperature detecting unit 1, and power detection device 3 joins by signal conditioning circuit 3 13 and temperature detecting unit 1.
Be intuitive display, convenience, the present invention also comprises in well heater 5 heating processes the convert need heating liquid Current Temperatures that draws of divider 8 carried out the display unit 15 of simultaneous display, and described display unit 15 joins with processor 9.
During actual the use, by 10 pairs of well heaters of clock circuit, 5 each t heat time heating time constantly
RealAdd up well heater 5 each t heat time heating time constantly that processor 9 is added up in conjunction with clock circuit 10
Real, and according to formula CmAt
Real=Pt
Real, calculate and respectively constantly need heating liquid temperature increment Δ t in heating process
Real, and the corresponding temperature that respectively constantly needs heating liquid in heating process that draws, and by needing the temperature of heating liquid to carry out simultaneous display in 15 pairs of whole heating processes of display unit.
In the present embodiment, described temperature detecting unit 1 is thermopair.Simultaneously, the present invention also comprises the data storage cell 16 that joins with processor 6, and the present invention also comprises heated condition indicating member 17 and the alarm indicating member 18 of being controlled by processor 9, and described heated condition indicating member 17 and alarm indicating member 18 all join with processor 9.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (7)
1. heating liquid control system, it is characterized in that: comprise the front temperature detecting unit (1) that the initial temperature of heating container domestic demand heating liquid is detected of heating, the weight detecting unit (2) that the weight of described heating container domestic demand heating liquid is detected, heating power to well heater that described heating container adopts (5) carries out the power detection device (3) of detection in real time, be used for input target temperature value and the parameter input unit (4) that needs heating liquid specific heat capacity C, to the clock circuit (10) of adding up the heat time heating time of well heater (5), the initial temperature value that target temperature value by parameter input unit (4) input and temperature detecting unit (1) are detected makes to differ from relatively and draw the subtracter (6) of temperature variation Δ t, conversion draws the multiplier (7) that absorbs heat Q when needing the heating liquid temperature to rise to target temperature value by initial temperature, convert the to get divider (8) of from heater core (5) required heat time heating time t and the processor (9) according to the Output rusults of divider (8) well heater (5) controlled corresponding to the testing result of the Output rusults of multiplier (7) and power detection device (3), described temperature detecting unit (1), weight detecting unit (2), power detection device (3), parameter input unit (4) and well heater (5) all join with processor (9), the output terminals A of described processor (9) and B join with two input ends of subtracter (6) respectively, and the output terminal C of the output terminal of subtracter (6) and processor (9) and D join with three input ends of multiplier (7) respectively, and the output terminal of the output terminal E of processor (9) and multiplier (7) joins with two input ends of divider (8) respectively, the output terminal of described divider (8) and processor (9) join.
2. according to heating liquid control system claimed in claim 1, it is characterized in that: described processor (9) is the ARM microprocessor.
3. according to the described heating liquid control system of claim 1 or 2, it is characterized in that: also comprise and joining with processor (9) and with the network insertion device (14) of processor (9) access to LAN.
4. according to the described heating liquid control system of claim 1 or 2, it is characterized in that: also comprise signal conditioning circuit one (11), signal conditioning circuit two (12) and signal conditioning circuit three (13), described temperature detecting unit (1) joins by signal conditioning circuit one (11) and temperature detecting unit (1), weight detecting unit (2) joins by signal conditioning circuit two (12) and temperature detecting unit (1), and power detection device (3) joins by signal conditioning circuit three (13) and temperature detecting unit (1).
5. according to the described heating liquid control system of claim 1 or 2, it is characterized in that: also comprise in well heater (5) heating process the convert need heating liquid Current Temperatures that draws of divider (8) is carried out the display unit (15) of simultaneous display, described display unit (15) joins with processor (9).
6. according to the described heating liquid control system of claim 1 or 2, it is characterized in that: described temperature detecting unit (1) is thermopair.
7. according to the described heating liquid control system of claim 1 or 2, it is characterized in that: also comprise the data storage cell (16) that joins with processor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110380816 CN103135636A (en) | 2011-11-25 | 2011-11-25 | Liquid heating control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110380816 CN103135636A (en) | 2011-11-25 | 2011-11-25 | Liquid heating control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103135636A true CN103135636A (en) | 2013-06-05 |
Family
ID=48495605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110380816 Pending CN103135636A (en) | 2011-11-25 | 2011-11-25 | Liquid heating control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103135636A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679053A (en) * | 2013-11-28 | 2015-06-03 | 李飞宇 | Method and device for controlling water temperature heating based on power feedback assisting |
| CN109619682A (en) * | 2018-12-11 | 2019-04-16 | 深圳市余看智能科技有限公司 | Aerosol generating material heating means, heating component and aerosol generating device |
| CN110623517A (en) * | 2018-06-21 | 2019-12-31 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and storage medium |
| CN112578828A (en) * | 2019-09-30 | 2021-03-30 | 张玮 | Temperature measuring method and device and heating equipment |
| CN112656196A (en) * | 2019-10-16 | 2021-04-16 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and storage medium |
| CN113142986A (en) * | 2020-01-22 | 2021-07-23 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, control method of cooking appliance, and computer-readable storage medium |
| CN113142968A (en) * | 2020-01-22 | 2021-07-23 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, control method of cooking appliance, and computer-readable storage medium |
| CN113432682A (en) * | 2016-03-25 | 2021-09-24 | 微技术医药公司 | Medical weighing system |
-
2011
- 2011-11-25 CN CN 201110380816 patent/CN103135636A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679053A (en) * | 2013-11-28 | 2015-06-03 | 李飞宇 | Method and device for controlling water temperature heating based on power feedback assisting |
| CN113432682A (en) * | 2016-03-25 | 2021-09-24 | 微技术医药公司 | Medical weighing system |
| CN113432682B (en) * | 2016-03-25 | 2023-07-28 | 微技术医药公司 | Medical weighing system |
| CN110623517A (en) * | 2018-06-21 | 2019-12-31 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and storage medium |
| CN109619682A (en) * | 2018-12-11 | 2019-04-16 | 深圳市余看智能科技有限公司 | Aerosol generating material heating means, heating component and aerosol generating device |
| CN112578828A (en) * | 2019-09-30 | 2021-03-30 | 张玮 | Temperature measuring method and device and heating equipment |
| CN112656196A (en) * | 2019-10-16 | 2021-04-16 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and storage medium |
| CN112656196B (en) * | 2019-10-16 | 2022-05-27 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and storage medium |
| CN113142986A (en) * | 2020-01-22 | 2021-07-23 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, control method of cooking appliance, and computer-readable storage medium |
| CN113142968A (en) * | 2020-01-22 | 2021-07-23 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, control method of cooking appliance, and computer-readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103135636A (en) | Liquid heating control system | |
| CN101354365B (en) | Heat measuring system | |
| Shaad et al. | Parameter identification of thermal models for domestic electric water heaters in a direct load control program | |
| CN201764707U (en) | Ordered heating control device for heat accumulation type electric water heater | |
| CN105352189B (en) | A kind of control method and control system of automatic water temperature regulation heating temperature | |
| CN104422137B (en) | Water heater preengages heat-production control method and system | |
| CN103472874B (en) | A kind of Instant heating type type water temperature adjustment method and device thereof | |
| CN102589139B (en) | Water heater and method for controlling hot water quantity | |
| CN104677522A (en) | Scene automatic calibration system and method for integrative temperature transmitter | |
| CN105045312A (en) | Semimicro phase equilibrium system controller | |
| CN110595071B (en) | Control method of household appliance and household appliance | |
| CN202216780U (en) | Intelligent double-bath four-temperature field replacement thermostatic bath | |
| CN103135631A (en) | Demineralized water preheating system for demineralized water tank on basis of energy equivalent exchange | |
| CN110222409A (en) | Electric heater residue water time detection method, device, equipment and storage medium | |
| CN102799168B (en) | Non-contact heating temperature controller performance testing device | |
| CN107997601A (en) | Instant heating type heating unit and its control method | |
| CN112254349A (en) | Zero-cold-water supply system, control method of zero-cold-water supply system and water heater | |
| CN203671762U (en) | Intelligent flow control device based on ZigBee network | |
| CN103900265A (en) | Solar water heater and method for measuring amount of saved energy of solar water heater | |
| CN108286819B (en) | Electric water heater and control method thereof | |
| KR101485343B1 (en) | Method and apparatus of demand-response electric consumption control for electric equipment not supporting demand-response function | |
| CN104833105A (en) | Water heater and water heater system | |
| CN103677018B (en) | A kind of mineral oil method for heating and controlling, control device and control system | |
| Jamal et al. | Designing of smart net energy meter with multi-Mode tariff Computations for the diverse energy prosumers in Pakistan | |
| CN103052887A (en) | Power measuring system and power temperature converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |