CN108469853A - A kind of chemical reaction automatic heat preserving controller - Google Patents
A kind of chemical reaction automatic heat preserving controller Download PDFInfo
- Publication number
- CN108469853A CN108469853A CN201810442981.3A CN201810442981A CN108469853A CN 108469853 A CN108469853 A CN 108469853A CN 201810442981 A CN201810442981 A CN 201810442981A CN 108469853 A CN108469853 A CN 108469853A
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- resistance
- capacitance
- resistor
- rectifier
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- 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
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of chemical reaction automatic heat preserving controllers, including first resistor to the 6th resistance, first capacitance, second capacitance, thermistor, potentiometer, voltage comparator, triode, rectifier, heating tube and bidirectional triode thyristor, compared with prior art, the present invention is attached to by thermistor on chemical reaction container, temperature for incuding reaction, heating tube is for heating reaction vessel, it can be during the reaction, heating tube is controlled automatically according to the temperature conditions detected carries out temperature-compensating, and temperature can be set, to ensure that the reaction effect of chemical reaction reaches ideal sufficient effect, it has the value of popularization and application.
Description
Technical field
The present invention relates to a kind of chemical reaction auxiliary device more particularly to a kind of chemical reaction automatic heat preserving 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, understand affected by the ambient temperature in chemical reaction and lead to reaction
Efficiency is affected, 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 reaction automatic heat preserving controller.
The present invention is achieved through the following technical solutions above-mentioned purpose：
The present invention includes first resistor to the 6th resistance, the first capacitance, the second capacitance, thermistor, potentiometer, voltage ratio
Compared with device, triode, rectifier, heating tube and bidirectional triode thyristor, one end of AC power simultaneously with the first end of heating tube, the 6th
The first end of resistance is connected with the first end of the second capacitance, and the other end of AC power and the first input end of rectifier connect,
Second input terminal of rectifier is connect with the second end of the second end of the 6th resistance and the second capacitance simultaneously, and the anode of rectifier is defeated
Outlet is connect with the first end of the emitter of triode, the first end of second resistance and thermistor simultaneously, the cathode of rectifier
Output end simultaneously with the first end of bidirectional triode thyristor, the first end of potentiometer, the first end of the first capacitance and first resistor the
One end connects, and the second end of bidirectional triode thyristor and the second end of heating tube connect, and the control terminal of bidirectional triode thyristor passes through the 5th electricity
Resistance is connect with the collector of triode, and the base stage of triode is connect with the first end of the 4th resistance, and the second end of the 4th resistance is same
When and the output end of voltage comparator and the first end of 3rd resistor connect, the second end of the 3rd resistor cunning with potentiometer simultaneously
Moved end is connected with the forward signal input terminal of voltage comparator, the non-inverting signal input thereof of voltage comparator simultaneously with the first capacitance
Second end, the second end of first resistor connected with the second end of thermistor, the second end of potentiometer and the of second resistance
Two ends connect.
The beneficial effects of the present invention are：
The present invention is a kind of chemical reaction automatic heat preserving controller, and compared with prior art, the present invention passes through thermistor
It is attached on chemical reaction container, the temperature for incuding reaction, heating tube, can be anti-for being heated to reaction vessel
During answering, heating tube is controlled automatically according to the temperature conditions detected and carries out temperature-compensating, and temperature can be set, to protect
The reaction effect of card chemical reaction reaches ideal sufficient effect, 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 includes first resistor R1 to the 6th resistance R6, the first capacitance C1, the second capacitance C2, temperature-sensitive
Resistance RT, potentiometer RP, voltage comparator ic, triode VT, rectifier DR, heating tube RL and bidirectional triode thyristor SCR, alternating current
One end of source AC is connect with the first end of the first end of heating tube RL, the first end of the 6th resistance R6 and the second capacitance C2 simultaneously,
The other end of AC power AC is connect with the first input end of rectifier DR, and the second input terminal of rectifier DR is electric with the 6th simultaneously
The second end of resistance R6 is connected with the second end of the second capacitance C2, the cathode output end transmitting with triode VT simultaneously of rectifier DR
Pole, second resistance R2 first end connected with the first end of thermistor RT, the cathode output end of rectifier DR simultaneously with it is two-way
The first end company of the first end of controllable silicon SCR, the first end of potentiometer RP, the first end of the first capacitance C1 and first resistor R1
It connects, the second end of bidirectional triode thyristor SCR is connect with the second end of heating tube RL, and the control terminal of bidirectional triode thyristor SCR passes through the 5th
Resistance R5 is connect with the collector of triode VT, and the base stage of triode VT is connect with the first end of the 4th resistance R4, the 4th resistance
The second end of R4 is connect with the first end of the output end of voltage comparator ic and 3rd resistor R3 simultaneously, and the second of 3rd resistor R3
End simultaneously connect with the forward signal input terminal of the sliding end of potentiometer RP and voltage comparator ic, voltage comparator ic it is reversed
Signal input part connects with the second end of the second end of the first capacitance C1, the second end of first resistor R1 and thermistor RT simultaneously
It connects, the second end of potentiometer RP is connect with the second end of second resistance R2.
Working principle of the present invention is as follows：
It is straight that 220V AC powers obtain+12V after the second capacitance C2 filtering, the 6th resistance R6 decompressions, rectifier DR rectifications
Flow the work of power supply power supply road.Thermistor RT, first resistor R1 and LM358 type voltage comparator ic form temperature sensing circuit,
Thermistor RT is posive temperature coefficient thermistor；Starting to control a little for potentiometer RP, that is, temperature-adjustable is adjusted, for example, it is assumed that temperature
Degree control is at 45 DEG C hereinafter, be first placed in thermistor RT in 45 DEG C of hot water, and carefully adjusting potentiometer RP, makes voltage comparator
Until IC just exports high level.When temperature is less than 45 DEG C, thermistor RT resistance values are smaller, and voltage comparator LM358's is anti-
Terminal potential is inputted higher than forward signal to signal input part current potential, exports low level, triode VT, bidirectional triode thyristor SCR are led
It is logical, heating tube RL heating；With the raising of temperature when heating, thermistor RT resistance values start to become larger, non-inverting signal input thereof electricity
Position continuously decreases, and when non-inverting signal input thereof current potential inputs terminal potential less than forward signal, exports as high level, triode
VT, bidirectional triode thyristor SCR are turned off, and heating stops.The effect of 3rd resistor R3 is that output is allowed to generate certain return difference so that defeated
Enter and change in a small range of output centered on by control point such as 45 ± O.5 DEG C, the size of variation range is by 3rd resistor
R3 is determined.
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 reaction automatic heat preserving controller, it is characterised in that：Including first resistor to the 6th resistance, the first capacitance,
Second capacitance, thermistor, potentiometer, voltage comparator, triode, rectifier, heating tube and bidirectional triode thyristor, AC power
One end simultaneously connect with the first end of the first end of heating tube, the first end of the 6th resistance and the second capacitance, AC power
The first input end of the other end and rectifier connects, the second input terminal of rectifier while the second end and second with the 6th resistance
The second end of capacitance connects, the cathode output end of rectifier simultaneously with the emitter of triode, the first end of second resistance and heat
The first end of quick resistance connects, the cathode output end of rectifier simultaneously with the first end of bidirectional triode thyristor, the first end of potentiometer,
The first end of first capacitance is connected with the first end of first resistor, and the second end of bidirectional triode thyristor and the second end of heating tube connect
It connects, the control terminal of bidirectional triode thyristor is connected by the collector of the 5th resistance and triode, the base stage of triode and the 4th resistance
First end connection, the second end of the 4th resistance connect with the first end of the output end of voltage comparator and 3rd resistor simultaneously,
The second end of 3rd resistor is connect with the forward signal input terminal of the sliding end of potentiometer and voltage comparator simultaneously, and voltage compares
The non-inverting signal input thereof of device connects with the second end of the second end of the first capacitance, the second end of first resistor and thermistor simultaneously
It connects, the second end of potentiometer and the second end of second resistance connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442981.3A CN108469853A (en) | 2018-05-10 | 2018-05-10 | A kind of chemical reaction automatic heat preserving controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442981.3A CN108469853A (en) | 2018-05-10 | 2018-05-10 | A kind of chemical reaction automatic heat preserving controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108469853A true CN108469853A (en) | 2018-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810442981.3A Pending CN108469853A (en) | 2018-05-10 | 2018-05-10 | A kind of chemical reaction automatic heat preserving controller |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57182120A (en) * | 1981-05-02 | 1982-11-09 | Nippon Kogaku Kk <Nikon> | Photocoupler device |
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN205176685U (en) * | 2015-12-10 | 2016-04-20 | 国网四川雅安电力（集团）股份有限公司 | Adopt bridge rectifier to pile temperature -control circuit of rectification design |
| CN205608966U (en) * | 2016-05-12 | 2016-09-28 | 贵州天义电梯成套设备有限公司 | Car smog automatic alarm system |
| CN207050421U (en) * | 2017-08-14 | 2018-02-27 | 罗智芸 | Dryer automatic constant temperature controller |
-
2018
- 2018-05-10 CN CN201810442981.3A patent/CN108469853A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57182120A (en) * | 1981-05-02 | 1982-11-09 | Nippon Kogaku Kk <Nikon> | Photocoupler device |
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN205176685U (en) * | 2015-12-10 | 2016-04-20 | 国网四川雅安电力（集团）股份有限公司 | Adopt bridge rectifier to pile temperature -control circuit of rectification design |
| CN205608966U (en) * | 2016-05-12 | 2016-09-28 | 贵州天义电梯成套设备有限公司 | Car smog automatic alarm system |
| CN207050421U (en) * | 2017-08-14 | 2018-02-27 | 罗智芸 | Dryer automatic constant temperature controller |
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| 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 |
Application publication date: 20180831 |
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| RJ01 | Rejection of invention patent application after publication |