CN108646803A - A kind of chemical experiment reaction unit thermostatic controller - Google Patents
A kind of chemical experiment reaction unit thermostatic controller Download PDFInfo
- Publication number
- CN108646803A CN108646803A CN201810454550.9A CN201810454550A CN108646803A CN 108646803 A CN108646803 A CN 108646803A CN 201810454550 A CN201810454550 A CN 201810454550A CN 108646803 A CN108646803 A CN 108646803A
- Authority
- CN
- China
- Prior art keywords
- resistor
- amplifier
- capacitance
- potentiometer
- temperature sensor
- 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
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a kind of chemical experiment reaction unit thermostatic controllers, by first resistor to 3rd resistor, the first capacitance, the second capacitance, temperature sensor, amplifier, potentiometer, relay and battery composition, compared with prior art, the present invention uses the temperature sensors of high precision of model DS18B20 for core component, real time temperature for detecting chemical reaction equipment, it is worked according to temperature automatic control heating device, keep the temperature of chemical reaction equipment constant in the range of setting, it keeps chemical reaction abundant, has the value of popularization and application.
Description
Technical field
The present invention relates to a kind of chemical experiment equipment more particularly to a kind of chemical experiment reaction unit thermostatic controllers.
Background technology
Chemical reaction refers to the cracking of molecules into atom, and atom rearranges the process of combination producing recruit, referred to as chemical
Reaction.It is often accompanied by discoloration of emitting light and heat in the reaction and generates sediment etc., judges whether a reaction is the foundation chemically reacted
It is to react whether to generate new molecule.In the prior art, it is difficult to keep the temperature in the chemical reaction for needing to keep temperature
Setting range or thermostatic be not accurate, and accordingly, there exist rooms for improvement.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of chemical experiment reaction unit constant temperature control
Device processed.
The present invention is achieved through the following technical solutions above-mentioned purpose：
The present invention is by first resistor to 3rd resistor, the first capacitance, the second capacitance, temperature sensor, amplifier, current potential
Device, relay and battery composition, the anode of the battery simultaneously with the cathode power supply end of the amplifier, the potentiometer the
One end, the first end of second capacitance, the positive first end with first capacitance of the temperature sensor connect, described
The cathode of battery simultaneously with the first end of relay, the negative electricity source of amplifier, the second end of potentiometer, the second capacitance the
The second end at two ends, the cathode of temperature sensor and the first capacitance connects, the signal output end and first resistor of temperature sensor
First end connection, the second end of first resistor connects with the first end of the positive signal input terminal of amplifier and 3rd resistor simultaneously
It connects, the sliding end of potentiometer is connected by the negative signal input terminal of second resistance and amplifier, the signal output end of amplifier
It is connect simultaneously with the second end of the second end of 3rd resistor and relay.
The beneficial effects of the present invention are：
The present invention is a kind of chemical experiment reaction unit thermostatic controller, and compared with prior art, the present invention uses type
The temperature sensors of high precision of number DS18B20 is core component, the real time temperature for detecting chemical reaction equipment, according to temperature
Automatic control heating device work is spent, keeps the temperature of chemical reaction equipment constant in the range of setting, chemical reaction is kept to fill
Point, it has the value of popularization and application.
Description of the drawings
Fig. 1 is the circuit structure schematic diagram of the present invention.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1：The present invention is passed by first resistor R1 to 3rd resistor R3, the first capacitance C1, the second capacitance C2, temperature
Sensor WD, amplifier IC, potentiometer RP, relay K and battery E composition, the anode of the battery E simultaneously with the amplifier IC
Cathode power supply end, the first end of the potentiometer RP, the first end of the second capacitance C2, the temperature sensor WD just
Pole is connected with the first end of the first capacitance C1, the cathode of the battery E while the first end with relay K, amplifier IC
Negative electricity source, the second end of potentiometer RP, the second end of the second capacitance C2, temperature sensor WD cathode and the first capacitance
The second end of C1 connects, and the signal output end of temperature sensor WD is connect with the first end of first resistor R1, first resistor R1's
Second end is connect with the first end of the positive signal input terminal of amplifier IC and 3rd resistor R3 simultaneously, the sliding end of potentiometer RP
It is connect with the negative signal input terminal of amplifier IC by second resistance R2, the signal output end of amplifier IC is electric with third simultaneously
The second end of resistance R3 is connected with the second end of relay K.
Working principle of the present invention is as follows：
The control switch of relay K is connected in the heater power source circuit of chemical reaction equipment, as control terminal, temperature
The temperature of sensor WD detection chemical reaction equipment, by amplifier IC by the output voltage of temperature sensor WD and amplifier IC
Preset reference voltage compares.If the output voltage of temperature sensor WD is more than reference voltage, then the output of amplifier IC becomes
Height makes relay K be connected, and to touch the action of relay K control terminals, plays the purpose of temperature control.Adjusting potentiometer RP can change
The range of temperature detection.
The basic principles and main features and advantages of the present invention of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. a kind of chemical experiment reaction unit thermostatic controller, it is characterised in that：By first resistor to 3rd resistor, the first electricity
Appearance, the second capacitance, temperature sensor, amplifier, potentiometer, relay and battery composition, the battery anode simultaneously with institute
State the cathode power supply end of amplifier, the first end of the potentiometer, the first end of second capacitance, the temperature sensor
The positive first end with first capacitance connects, the cathode of the battery simultaneously with the first end of relay, amplifier it is negative
The second end company of pole power end, the second end of potentiometer, the second end of the second capacitance, the cathode of temperature sensor and the first capacitance
It connects, the signal output end of temperature sensor and the first end of first resistor connect, the second end of first resistor while and amplifier
Positive signal input terminal connected with the first end of 3rd resistor, the sliding end of potentiometer is negative by second resistance and amplifier
Pole signal input part connection, the signal output end of amplifier connect with the second end of 3rd resistor and the second end of relay simultaneously
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454550.9A CN108646803A (en) | 2018-05-14 | 2018-05-14 | A kind of chemical experiment reaction unit thermostatic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454550.9A CN108646803A (en) | 2018-05-14 | 2018-05-14 | A kind of chemical experiment reaction unit thermostatic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108646803A true CN108646803A (en) | 2018-10-12 |
Family
ID=63755105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810454550.9A Pending CN108646803A (en) | 2018-05-14 | 2018-05-14 | A kind of chemical experiment reaction unit thermostatic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108646803A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203232414U (en) * | 2013-04-22 | 2013-10-09 | 成都中远信电子科技有限公司 | Temperature monitoring circuit |
| CN206075168U (en) * | 2016-08-23 | 2017-04-05 | 南京铁道职业技术学院 | A kind of Along Railway Unattended communication room temperature-control circuit |
-
2018
- 2018-05-14 CN CN201810454550.9A patent/CN108646803A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203232414U (en) * | 2013-04-22 | 2013-10-09 | 成都中远信电子科技有限公司 | Temperature monitoring circuit |
| CN206075168U (en) * | 2016-08-23 | 2017-04-05 | 南京铁道职业技术学院 | A kind of Along Railway Unattended communication room temperature-control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181012 |