CN218100023U - Temperature control device of reaction kettle for nitrile latex production - Google Patents
Temperature control device of reaction kettle for nitrile latex production Download PDFInfo
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- CN218100023U CN218100023U CN202222318187.2U CN202222318187U CN218100023U CN 218100023 U CN218100023 U CN 218100023U CN 202222318187 U CN202222318187 U CN 202222318187U CN 218100023 U CN218100023 U CN 218100023U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a butyronitrile latex production reation kettle temperature control device, including the cauldron body, the internal portion of cauldron is provided with electric heater, inlays on the internal wall of cauldron and is equipped with temperature sensor, temperature sensor's signal output part passes through transmission line connection signal processing module, signal processing module is including the steady circuit of operational amplifier, emitter following filter circuit, analog-to-digital converter and the controller that connect gradually, the utility model discloses a design signal processing module is taked care of the temperature detection signal, effectively improves the stability of temperature detection signal output, suppresses the interference that external environment factor produced temperature sensor, has greatly promoted the temperature detection signal and has amplified the amplitude characteristic, guarantees the temperature detection precision; the controller controls the working state of the electric heater according to the temperature value, so that the internal temperature of the reaction kettle always meets the requirement of the production process of the butyronitrile latex, and the production yield of the butyronitrile latex is greatly ensured.
Description
Technical Field
The utility model relates to a butyronitrile latex production facility technical field especially relates to a butyronitrile latex production reation kettle temperature control device.
Background
The nitrile latex is anionic high molecular polymer emulsion, has uniform molecular weight and particle size distribution, is oil-resistant, solvent-resistant and acid-alkali-resistant, can be crosslinked with sulfur and metal oxide, and has better stability than natural latex. The production of the butyronitrile latex needs to use a reaction kettle, when the carboxyl butyronitrile latex is synthesized, an intermittent emulsion polymerization process is adopted, the monomer is added into the reaction kettle at one time, a method of adding auxiliary agents such as a molecular weight regulator and the like in the reaction process is completed, and the reaction temperature is controlled in a control mode of stepwise temperature rise from low to high, so that the production efficiency of the carboxyl butyronitrile latex is improved. Because the temperature in the reaction kettle changes frequently, the processing of detection signals of a temperature sensor in the reaction kettle has high requirements, the platinum heat type temperature probe commonly used in the reaction kettle at present has high fluctuation in the signal output operation amplification process, is easily interfered by environmental factors to generate temperature drift, causes the deviation of a temperature detection value and an actual value, and the temperature control precision of the reaction kettle can not meet the process requirements, thereby influencing the production yield of the butyronitrile latex.
So the utility model provides a new scheme solves this problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation, the utility model aims to overcome the defects of the prior art and provide a temperature control device for a reaction kettle for producing nitrile butadiene latex.
The technical scheme for solving the problem is as follows: the utility model provides a butyronitrile latex production reation kettle temperature control device, includes the cauldron body, the internal portion of cauldron is provided with electric heater, inlays on the internal wall of cauldron and is equipped with temperature sensor, temperature sensor's signal output part passes through transmission line connection signal processing module, filter circuit, adc and controller are followed to the emitter including the fortune that connects gradually to put steady circuit, signal processing module, the input of fortune is put steady circuit and is connected temperature sensor's signal output part, the output of controller is connected electric heater's control end.
Preferably, the operational amplifier amplitude stabilizing circuit comprises an operational amplifier AR1, the non-inverting input terminal of the operational amplifier AR1 is connected to the signal output terminal of the temperature sensor and is grounded via a resistor R1 and a capacitor C1 which are connected in parallel, the inverting input terminal of the operational amplifier AR1 is connected to one end of a resistor R2, the output terminal of the operational amplifier AR1 and the input terminal of the emitter following filter circuit via a capacitor C2, the other end of the resistor R2 is connected to a pin 3 of a three-terminal regulator D1 and one end of a resistor R3, and a pin 2 of the three-terminal regulator D1 and the other end of the resistor R3 are grounded in parallel.
Preferably, the emitter following filter circuit comprises an operational amplifier AR2 and a triode VT1, the non-inverting input terminal of the operational amplifier AR2 is connected to a pin 1 of a three-terminal regulator D1 and is connected to the output terminal of the operational amplifier AR1 through a resistor R4, the inverting input terminal of the operational amplifier AR2 is connected to one end of a capacitor C4 through a resistor R5, the other end of the capacitor C4 is grounded, the output terminal of the operational amplifier AR2 is connected to the base of the triode VT1, the collector of the triode VT1 is connected to the output terminal of the operational amplifier AR1 through a parallel inductor L1 and a capacitor C3, the emitter of the triode VT1 is connected to one end of a resistor R6, the cathode of the zener diode DZ1 and the input terminal of the analog-to-digital converter, and the other end of the resistor R6 is grounded in parallel with the anode of the zener diode DZ 1.
Preferably, the temperature sensor is a PT100 platinum resistance sensor.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a design signal processing module comes to take care of the temperature detection signal, effectively improves the stability of temperature detection signal output, suppresses the interference that external environment factor produced temperature sensor, has greatly promoted the temperature detection signal amplitude characteristic of enlarging, guarantees the temperature detection precision;
2. the controller controls the working state of the electric heater according to the temperature value, so that the internal temperature of the reaction kettle always meets the requirement of the production process of the butyronitrile latex, and the production yield of the butyronitrile latex is greatly ensured.
Drawings
Fig. 1 is a schematic circuit diagram of the signal processing module of the present invention.
Detailed Description
The foregoing and other technical and other features and advantages of the invention will be apparent from the following more particular description of the embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides a butyronitrile latex production reation kettle temperature control device, includes the cauldron body, the internal portion of cauldron is provided with electric heater, inlays on the internal wall of cauldron and is equipped with temperature sensor, and temperature sensor's signal output part passes through transmission line connection signal processing module, filter circuit, adc and controller are followed to the emitter including the fortune that connects gradually to the signal processing module, the input of fortune is put steady circuit and is connected temperature sensor's signal output part, the output of controller is connected electric heater's control end.
As shown in fig. 1, the operational amplifier amplitude stabilizing circuit includes an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to a signal output terminal of the temperature sensor and is grounded to a capacitor C1 through a resistor R1 connected in parallel, an inverting input terminal of the operational amplifier AR1 is connected to one end of a resistor R2, an output terminal of the operational amplifier AR1 and an input terminal of the emitter following filter circuit through a capacitor C2, the other end of the resistor R2 is connected to a pin 3 of a three-terminal regulator D1 and one end of a resistor R3, and a pin 2 of the three-terminal regulator D1 and the other end of the resistor R3 are grounded in parallel.
Further, the emitter following filter circuit comprises an operational amplifier AR2 and a triode VT1, wherein the in-phase input end of the operational amplifier AR2 is connected with a pin 1 of a three-terminal voltage regulator D1, the output end of the operational amplifier AR1 is connected with the output end of the operational amplifier AR 4, the inverting input end of the operational amplifier AR2 is connected with one end of a capacitor C4 through a resistor R5, the other end of the capacitor C4 is grounded, the output end of the operational amplifier AR2 is connected with the base electrode of the triode VT1, the collector electrode of the triode VT1 is connected with the output end of the operational amplifier AR1 through a parallel inductor L1 and a capacitor C3, the emitter electrode of the triode VT1 is connected with one end of a resistor R6, the cathode of a voltage stabilizing diode DZ1 and the input end of the analog-to-digital converter, and the other end of the resistor R6 is grounded in parallel with the anode of the voltage stabilizing diode DZ 1.
The utility model discloses a concrete work flow and principle as follows: the device detects the reaction temperature environment in the kettle body through the temperature sensor on the inner wall of the kettle body, when the device is specifically arranged, the temperature sensor selects a PT100 platinum resistance sensor, a reaction temperature signal is converted into an electric signal to be output, and in order to ensure the accuracy of temperature detection, a signal processing module is adopted to condition the temperature detection signal;
firstly, the operational amplifier amplitude stabilizing circuit performs low-pass noise reduction on a temperature detection signal by adopting RC filtering to eliminate high-frequency noise, and then sends the temperature detection signal into the operational amplifier AR1 for operational amplification, wherein a capacitor C2 plays a role in buffer compensation in the operational amplifier process, so that mechanical noise interference is effectively eliminated, the amplified output waveform of the temperature detection signal is improved, and meanwhile, the three-terminal voltage stabilizer D1 is adopted to perform amplitude stabilizing processing on the output signal of the operational amplifier AR1, so that the amplified amplitude characteristic of the temperature detection signal is effectively improved;
secondly, the emitter following filter circuit adopts an operational amplifier AR2 to carry out secondary amplification on an output signal of the operational amplifier amplitude stabilizing circuit, so that a temperature detection signal reaches a standard signal amplitude range recognizable by a controller, and a capacitor C4 is arranged at the reverse phase input end of the operational amplifier AR2 to eliminate thermal noise on a resistance loop, thereby reducing the temperature drift influence and ensuring the output precision of the temperature detection signal; a triode VT1 is arranged at the output end of the operational amplifier AR2 and is used as an emitter follower, the amplified signal is subjected to closed-loop feedback conditioning through an inductor L1 and a capacitor C3 which are connected in parallel, the interference of a system and power supply noise is eliminated by utilizing an LC filter network, the temperature detection precision is further improved, and finally, the filtered detection signal is subjected to amplitude stabilization through a voltage stabilizing diode DZ1 and then is sent into an analog-digital converter;
the analog-to-digital converter converts the temperature detection signal from an analog electric signal into a digital signal which can be recognized by the controller, the controller calculates a temperature value by utilizing a mature data processing technology, and controls the working state of the electric heater according to the temperature value, so that the internal temperature of the reaction kettle always meets the requirements of the production process of the butyronitrile latex, and the production yield of the butyronitrile latex is greatly ensured.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (4)
1. The utility model provides a butyronitrile latex production reation kettle temperature control device, includes the cauldron body, the internal portion of cauldron is provided with electric heater, inlays on the internal wall of cauldron and is equipped with temperature sensor, its characterized in that: the temperature sensor's signal output part passes through transmission line connection signal processing module, signal processing module is including the operational amplifier stabilizing circuit, emitter follow filter circuit, adc and the controller that connect gradually, the input of operational amplifier stabilizing circuit is connected temperature sensor's signal output part, the output of controller is connected electric heater's control end.
2. The butyronitrile latex production reation kettle temperature control device of claim 1, characterized in that: the operational amplifier amplitude stabilizing circuit comprises an operational amplifier AR1, wherein the in-phase input end of the operational amplifier AR1 is connected with the signal output end of the temperature sensor and is grounded through a resistor R1 and a capacitor C1 which are connected in parallel, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R2, the output end of the operational amplifier AR1 and the input end of the emitter following filter circuit through a capacitor C2, the other end of the resistor R2 is connected with one end of a pin 3 of a three-terminal voltage regulator D1 and one end of a resistor R3, and a pin 2 of the three-terminal voltage regulator D1 is grounded in parallel with the other end of the resistor R3.
3. The butyronitrile latex production reation kettle temperature control device of claim 2, characterized in that: the emitter following filter circuit comprises an operational amplifier AR2 and a triode VT1, wherein the in-phase input end of the operational amplifier AR2 is connected with a pin 1 of a three-terminal voltage regulator D1, the output end of the operational amplifier AR1 is connected with the output end of the operational amplifier AR 4, the inverting input end of the operational amplifier AR2 is connected with one end of a capacitor C4 through a resistor R5, the other end of the capacitor C4 is grounded, the output end of the operational amplifier AR2 is connected with the base electrode of the triode VT1, the collector electrode of the triode VT1 is connected with the output end of the operational amplifier AR1 through a parallel inductor L1 and a capacitor C3, the emitter electrode of the triode VT1 is connected with one end of a resistor R6, the cathode of a zener diode DZ1 and the input end of the analog-to-digital converter, and the other end of the resistor R6 is connected with the anode of the zener diode DZ1 in parallel and grounded.
4. The butyronitrile latex production reation kettle temperature control device of claim 3, characterized in that: the temperature sensor is a PT100 platinum resistance sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222318187.2U CN218100023U (en) | 2022-09-01 | 2022-09-01 | Temperature control device of reaction kettle for nitrile latex production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222318187.2U CN218100023U (en) | 2022-09-01 | 2022-09-01 | Temperature control device of reaction kettle for nitrile latex production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218100023U true CN218100023U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222318187.2U Active CN218100023U (en) | 2022-09-01 | 2022-09-01 | Temperature control device of reaction kettle for nitrile latex production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218100023U (en) |
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2022
- 2022-09-01 CN CN202222318187.2U patent/CN218100023U/en active Active
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