CN203070132U - Intelligent temperature control system for chemical raw material heating - Google Patents
Intelligent temperature control system for chemical raw material heating Download PDFInfo
- Publication number
- CN203070132U CN203070132U CN 201220690868 CN201220690868U CN203070132U CN 203070132 U CN203070132 U CN 203070132U CN 201220690868 CN201220690868 CN 201220690868 CN 201220690868 U CN201220690868 U CN 201220690868U CN 203070132 U CN203070132 U CN 203070132U
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- China
- Prior art keywords
- heater
- microprocessor
- control system
- temperature control
- industrial chemicals
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- 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.)
- Expired - Fee Related
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- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Abstract
Provided by the utility model is an intelligent temperature control system for chemical raw material heating. The system comprises a heater, a constant-current source, a temperature sensor, and a microprocessor. Specifically, the heater is used for heating the chemical raw material; the constant-current source is used for supplying power for the heater and a microprocessor; the input terminal of the temperature sensor is connected with the heater and the temperature sensor is used for detecting the temperature of the heater; the microprocessor with the input terminal connected with the output terminal of the temperature sensor is used for comparing the temperature detected by the temperature sensor with the set temperature inside the heater and the output terminal of the microprocessor carries out work of heater controlling by using a switch arranged between the constant-current source and the heater. According to the utility model, the microprocessor compares the actual temperature, detected by the temperature sensor, of the heater with the set temperature inside the heater, thereby controlling whether the heater works or not; and when the temperature of the heater reaches a certain value, the work of the heater is interrupted, thereby realizing the intelligent temperature controlling of the heater.
Description
Technical field
The utility model relates to temperature control system, is specifically related to a kind of industrial chemicals heating intelligent temperature control system.
Background technology
The existent chemical raw materials for example heating of cream frost product etc. is to realize by mimic channel mostly, for example, realize that by bridge diagram the signal of bridge circuit two arms is sent into comparer and compared, when bridge circuit two arms are uneven, comparer output makes the well heater heating, and when bridge circuit two arm balances, the comparer no-output, well heater stops heating, this device control temperature accuracy is lower, poor stability.Also have by temperature sensor heter temperature is sampled, the relevant report of well heater being controlled by comparer then, because comparer self structure characteristic, its precision is also relatively low.
The utility model content
The purpose of this utility model is to provide a kind of industrial chemicals heating intelligent temperature control system, solves the above-mentioned problem lower to the heter temperature control accuracy.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of industrial chemicals heating intelligent temperature control system, it comprises:
Well heater is used to described industrial chemicals to heat;
Constant current source is used to described well heater and microprocessor that power supply is provided;
Temperature sensor, its input end links to each other with well heater, is used for the temperature of the described well heater of detecting;
Microprocessor, its input end links to each other with the output terminal of described temperature sensor, be used for the temperature of temperature sensor detecting and in it design temperature compare, carry out the work of control heater by its output terminal by a switch that is connected between constant current source and the well heater.
Preferably, also connect a voltage conversion circuit between described microprocessor and the constant current source.
Preferably, also connect an A/D converter between described microprocessor and the temperature sensor.
Preferably, described industrial chemicals heating intelligent temperature control system comprises that further one is used for showing the display screen of heter temperature, and described display screen and microprocessor electrically connect.
As a kind of embodiment, described switch is the PNP triode, and the base stage of described PNP triode is connected in the output terminal of microprocessor, and its collector is connected in constant current source, and its emitter is connected in well heater.
As another kind of embodiment, described switch is the NMOS pipe, and the grid of described NMOS pipe is connected in the output terminal of microprocessor, and its drain electrode is connected in constant current source, and its source electrode is connected in well heater.
Advantage of the present utility model is:
The utility model compares by actual temperature and the Qi Nei design temperature of microprocessor with the well heater of temperature sensor detecting, thereby whether the work of control heater, make the temperature of well heater reach one regularly, disconnect its work, thereby realize the intelligent temperature control of well heater.
Description of drawings
Fig. 1 is the structured flowchart of the utility model industrial chemicals heating intelligent temperature control system.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
As shown in Figure 1, a kind of industrial chemicals heating intelligent temperature control system, it comprises: the well heater 4 that heats for described industrial chemicals, the constant current source 1 of power supply is provided for described well heater 4 and microprocessor 2, detect the temperature sensor 5 of the temperature of described well heater 4, the input end of this temperature sensor 5 links to each other with well heater 4, and with the temperature of temperature sensor 4 detecting and in it design temperature compare, be connected in the microprocessor 2 that the switch 3 between constant current source 1 and the well heater 4 carries out the work of control heater 4 by one, the input end of this microprocessor 2 links to each other with the output terminal of described temperature sensor 5, and its output terminal links to each other with switch 3.
Because well heater 4 required voltages may not be consistent with microprocessor 2 required voltages, therefore between microprocessor 2 and constant current source 1, also connect a voltage conversion circuit 7, this voltage conversion circuit 7 can be a divider resistance as the case may be.
Microprocessor 2 can be selected for example AT89C51 etc. of the low single-chip microcomputer of cost for use, need also connect an A/D converter 6 this moment between microprocessor and temperature sensor, certainly, if microprocessor 2 adopts the process chip with A/D translation function, then A/D converter 6 can be ignored.
As a kind of embodiment, described switch 3 can adopt the PNP triode, and the base stage of described PNP triode is connected in the output terminal of microprocessor 2, and its collector is connected in constant current source 1, and its emitter is connected in well heater 4.
As another kind of embodiment, described switch 3 can also adopt the NMOS pipe, and the grid of described NMOS pipe is connected in the output terminal of microprocessor 2, and its drain electrode is connected in constant current source 1, and its source electrode is connected in well heater 4.
In the utility model preferred embodiment, this industrial chemicals heating intelligent temperature control system comprises that also one is used for showing the display screen 8 of heter temperature, shows the temperature of well heater 4 in real time, and described display screen and microprocessor electrically connect.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. an industrial chemicals heats intelligent temperature control system, it is characterized in that it comprises:
Well heater is used to described industrial chemicals to heat;
Constant current source is used to described well heater and microprocessor that power supply is provided;
Temperature sensor, its input end links to each other with well heater, is used for the temperature of the described well heater of detecting;
Microprocessor, its input end links to each other with the output terminal of described temperature sensor, be used for the temperature of temperature sensor detecting and in it design temperature compare, carry out the work of control heater by its output terminal by a switch that is connected between constant current source and the well heater.
2. industrial chemicals heating intelligent temperature control system according to claim 1 is characterized in that, also connects a voltage conversion circuit between described microprocessor and the constant current source.
3. industrial chemicals heating intelligent temperature control system according to claim 1 is characterized in that, also connects an A/D converter between described microprocessor and the temperature sensor.
4. industrial chemicals heating intelligent temperature control system according to claim 1 is characterized in that, described industrial chemicals heating intelligent temperature control system comprises that further one is used for showing the display screen of heter temperature, and described display screen and microprocessor electrically connect.
5. industrial chemicals heating intelligent temperature control system according to claim 1 is characterized in that described switch is the PNP triode.
6. industrial chemicals heating intelligent temperature control system according to claim 5 is characterized in that the base stage of described PNP triode is connected in the output terminal of microprocessor, and its collector is connected in constant current source, and its emitter is connected in well heater.
7. industrial chemicals heating intelligent temperature control system according to claim 1 is characterized in that, described switch is the NMOS pipe.
8. industrial chemicals heating intelligent temperature control system according to claim 7 is characterized in that the grid of described NMOS pipe is connected in the output terminal of microprocessor, and its drain electrode is connected in constant current source, and its source electrode is connected in well heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690868 CN203070132U (en) | 2012-12-13 | 2012-12-13 | Intelligent temperature control system for chemical raw material heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690868 CN203070132U (en) | 2012-12-13 | 2012-12-13 | Intelligent temperature control system for chemical raw material heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070132U true CN203070132U (en) | 2013-07-17 |
Family
ID=48768900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220690868 Expired - Fee Related CN203070132U (en) | 2012-12-13 | 2012-12-13 | Intelligent temperature control system for chemical raw material heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203070132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677017A (en) * | 2013-12-13 | 2014-03-26 | 苏州长光华医生物医学工程有限公司 | High-precision temperature control system |
-
2012
- 2012-12-13 CN CN 201220690868 patent/CN203070132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677017A (en) * | 2013-12-13 | 2014-03-26 | 苏州长光华医生物医学工程有限公司 | High-precision temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20201213 |