CN214681664U - Liquid anti-oxidant reation kettle temperature control device - Google Patents
Liquid anti-oxidant reation kettle temperature control device Download PDFInfo
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- CN214681664U CN214681664U CN202120654094.XU CN202120654094U CN214681664U CN 214681664 U CN214681664 U CN 214681664U CN 202120654094 U CN202120654094 U CN 202120654094U CN 214681664 U CN214681664 U CN 214681664U
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Abstract
The utility model discloses a liquid anti-oxidant reation kettle temperature control device, including the cauldron body, internal heater and the temperature sensor of being provided with of cauldron, temperature sensor are the infrared temperature sensor who sets up at cauldron body top, the utility model discloses utilize infrared temperature sensor to carry out direct measurement to the temperature of the internal liquid batching reaction of cauldron, make temperature detection more close to the truth, and response speed is fast, infrared temperature sensor's detected signal loops through and sends into the controller after frequency-selecting filter circuit, amplitude stabilizing circuit and amplification regulating circuit handle, avoids the internal environmental factor of cauldron to cause the interference to infrared detected signal, the utility model discloses temperature detection is directly perceived accurate, and interference immunity is strong, and the testing result is accurate effective, has excellent result of use.
Description
Technical Field
The utility model relates to a liquid anti-oxidant production facility technical field especially relates to a liquid anti-oxidant reation kettle temperature control device.
Background
The liquid antioxidant has excellent antioxidant performance, low volatility and excellent compatibility. In the preparation process of the liquid antioxidant, the reaction temperature needs to be adjusted for many times so as to reach the optimal reaction temperature. However, in practical application, the raw material reaction environment in the reaction kettle is relatively complex, and the traditional platinum thermal resistance temperature measurement mode cannot obtain the actual temperature in the liquid reaction process, so that the temperature control is not accurate, and adverse factors are caused to actual production.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a temperature control device for a liquid antioxidant reaction kettle.
The technical scheme for solving the problem is as follows: the utility model provides a liquid anti-oxidant reation kettle temperature control device, includes the cauldron body, the internal heater and the temperature sensor of being provided with of cauldron, temperature sensor is the infrared temperature sensor who sets up at cauldron body top, infrared temperature sensor's detected signal loops through frequency-selecting filter circuit, amplitude stabilizing circuit and enlargies during the regulating circuit handles the back controller that sends into, the controller is used for adjusting the power of heater.
Furthermore, the frequency-selective filter circuit comprises capacitors C1 and C2 and an inductor L1, one end of each of the capacitors C1 and the inductor L1 is connected to the signal output end of the infrared temperature sensor, the other end of the inductor L1 is connected to one end of the capacitor C2 and the input end of the amplitude stabilizing circuit, and the other ends of the capacitors C1 and C2 are grounded.
Further, the amplitude stabilizing circuit comprises a MOS tube Q1, the drain of the MOS tube Q1 is connected with one end of a capacitor C3, the cathode of a voltage stabilizing diode DZ1 and the other end of an inductor L1, the gate of the MOS tube Q1 is connected with the other end of a capacitor C3 and the anode of the voltage stabilizing diode DZ1 and is grounded through a resistor R1, and the source of the MOS tube Q1 is connected with the input end of the amplification regulating circuit and is grounded through a resistor R2 and a capacitor C4 which are connected in parallel.
Further, the amplification regulating circuit comprises an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to a source of the MOS transistor Q1, an inverting input terminal of the operational amplifier AR1 is connected to one ends of the resistors R3 and R4, the other end of the resistor R3 is grounded, and the other end of the resistor R4 is connected to an output terminal of the operational amplifier AR1 and the controller through the rheostat RP 1.
Through the technical scheme, the beneficial effects of the utility model are that: the utility model discloses utilize infrared temperature sensor to carry out direct measurement to the temperature when the internal liquid batching reaction of cauldron, make temperature detect and more be close to the true value, and response speed is fast, during infrared temperature sensor's detected signal loops through frequency-selecting filter circuit, amplitude stabilizing circuit and sends into the controller after amplifying the regulating circuit handles, avoids the internal environmental factor of cauldron to cause the interference to infrared detected signal, the utility model discloses temperature detection accuracy directly perceived, interference immunity is strong, and the testing result is accurate effective, has result of use well.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying 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 liquid anti-oxidant reation kettle temperature control device, includes the cauldron body, the internal heater and the temperature sensor of being provided with of cauldron, temperature sensor are the infrared temperature sensor who sets up at cauldron body top, infrared temperature sensor's detected signal loops through frequency-selecting filter circuit, amplitude stabilizing circuit and enlargies during the regulating circuit handles the back controller that sends into, the controller is used for adjusting the power of heater.
The frequency-selecting filter circuit comprises capacitors C1 and C2 and an inductor L1, one ends of the capacitor C1 and the inductor L1 are connected with a signal output end of the infrared temperature sensor, the other end of the inductor L1 is connected with one end of a capacitor C2 and an input end of the amplitude stabilizing circuit, and the other ends of the capacitors C1 and C2 are grounded.
The amplitude stabilizing circuit comprises a MOS tube Q1, wherein the drain electrode of the MOS tube Q1 is connected with one end of a capacitor C3, the cathode of a voltage stabilizing diode DZ1 and the other end of an inductor L1, the grid electrode of the MOS tube Q1 is connected with the other end of a capacitor C3 and the anode of a voltage stabilizing diode DZ1 and is grounded through a resistor R1, and the source electrode of the MOS tube Q1 is connected with the input end of the amplification regulating circuit and is grounded through a resistor R2 and a capacitor C4 which are connected in parallel.
The amplifying and adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with the source electrode of the MOS transistor Q1, the inverting input end of the operational amplifier AR1 is connected with one ends of resistors R3 and R4, the other end of the resistor R3 is grounded, and the other end of the resistor R4 is connected with the output end of the operational amplifier AR1 and the controller through a rheostat RP 1.
The utility model discloses when specifically using, the temperature that utilizes infrared temperature sensor to when the internal liquid batching reaction of cauldron carries out direct measurement, makes temperature detection more be close to the true value, and response speed is fast. In order to avoid interference of environmental factors in the kettle body on the infrared detection signal, the frequency-selecting filter circuit is designed to perform noise reduction processing on the detection signal of the infrared temperature sensor. The capacitors C1 and C2 and the inductor L1 form a pi-type LC filter to filter the infrared temperature detection signals, high-frequency noise caused by external environment interference is greatly reduced, and the accuracy of the infrared temperature detection signals is effectively improved. And then, an amplitude stabilizing circuit is adopted to carry out amplitude stabilizing treatment on the LC filtered signals, wherein a voltage stabilizing diode DZ1 and a capacitor C3 stabilize the signal amplification treatment process of the MOS transistor Q1, the stability of the output signals of the MOS transistor Q1 is effectively ensured, and the signals are filtered by the capacitor C4 and then sent to an amplification regulating circuit. The amplification regulating circuit adopts the operational amplifier AR1 to amplify the output signal of the amplitude stabilizing circuit in the same phase, and the resistance value of the rheostat RP1 can be adjusted to change the resistance value of the negative feedback end of the operational amplifier AR1, so that the amplification coefficient of the operational amplifier AR1 is changed, and the signal output range is conveniently adjusted to meet the receiving requirement of the controller. The controller carries out waveform analysis to the temperature detection signal received and calculates out the internal real-time reaction temperature of cauldron after to realize the power automatically regulated of heater, the utility model discloses temperature detection is directly perceived accurate, and interference immunity is strong, and the testing result is accurate effective, has result of use well.
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 liquid anti-oxidant reation kettle temperature control device, includes the cauldron body, the internal heater and the temperature sensor of being provided with of cauldron, its characterized in that: the temperature sensor is an infrared temperature sensor arranged at the top of the kettle body, detection signals of the infrared temperature sensor are processed sequentially through the frequency-selecting filter circuit, the amplitude stabilizing circuit and the amplification adjusting circuit and then are sent into the controller, and the controller is used for adjusting the power of the heater.
2. The liquid antioxidant reation kettle temperature control device of claim 1, characterized in that: the frequency-selecting filter circuit comprises capacitors C1 and C2 and an inductor L1, one ends of the capacitor C1 and the inductor L1 are connected with a signal output end of the infrared temperature sensor, the other end of the inductor L1 is connected with one end of a capacitor C2 and an input end of the amplitude stabilizing circuit, and the other ends of the capacitors C1 and C2 are grounded.
3. The liquid antioxidant reation kettle temperature control device of claim 2, characterized in that: the amplitude stabilizing circuit comprises a MOS tube Q1, wherein the drain electrode of the MOS tube Q1 is connected with one end of a capacitor C3, the cathode of a voltage stabilizing diode DZ1 and the other end of an inductor L1, the grid electrode of the MOS tube Q1 is connected with the other end of a capacitor C3 and the anode of a voltage stabilizing diode DZ1 and is grounded through a resistor R1, and the source electrode of the MOS tube Q1 is connected with the input end of the amplification regulating circuit and is grounded through a resistor R2 and a capacitor C4 which are connected in parallel.
4. The liquid antioxidant reation kettle temperature control device of claim 3, characterized in that: the amplifying and adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with the source electrode of the MOS transistor Q1, the inverting input end of the operational amplifier AR1 is connected with one ends of a resistor R3 and a resistor R4, the other end of the resistor R3 is grounded, and the other end of the resistor R4 is connected with the output end of the operational amplifier AR1 and the controller through a rheostat RP 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654094.XU CN214681664U (en) | 2021-03-31 | 2021-03-31 | Liquid anti-oxidant reation kettle temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654094.XU CN214681664U (en) | 2021-03-31 | 2021-03-31 | Liquid anti-oxidant reation kettle temperature control device |
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| Publication Number | Publication Date |
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| CN214681664U true CN214681664U (en) | 2021-11-12 |
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| CN202120654094.XU Active CN214681664U (en) | 2021-03-31 | 2021-03-31 | Liquid anti-oxidant reation kettle temperature control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815920A (en) * | 2022-03-09 | 2022-07-29 | 中维化纤股份有限公司 | Hot roller temperature control device is used in production of superfine denier nylon 66 |
| CN115016569A (en) * | 2022-06-21 | 2022-09-06 | 中维化纤股份有限公司 | Nylon polymerization cauldron temperature control system |
-
2021
- 2021-03-31 CN CN202120654094.XU patent/CN214681664U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815920A (en) * | 2022-03-09 | 2022-07-29 | 中维化纤股份有限公司 | Hot roller temperature control device is used in production of superfine denier nylon 66 |
| CN114815920B (en) * | 2022-03-09 | 2024-02-20 | 中维化纤股份有限公司 | Hot roller temperature control device for superfine denier nylon 66 production |
| CN115016569A (en) * | 2022-06-21 | 2022-09-06 | 中维化纤股份有限公司 | Nylon polymerization cauldron temperature control system |
| CN115016569B (en) * | 2022-06-21 | 2024-02-20 | 中维化纤股份有限公司 | Nylon polymerization reaction kettle temperature control system |
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