CN217332157U - Constant temperature control device of infrared carbon and sulfur analysis room thermostat - Google Patents
Constant temperature control device of infrared carbon and sulfur analysis room thermostat Download PDFInfo
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- CN217332157U CN217332157U CN202121204912.2U CN202121204912U CN217332157U CN 217332157 U CN217332157 U CN 217332157U CN 202121204912 U CN202121204912 U CN 202121204912U CN 217332157 U CN217332157 U CN 217332157U
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- temperature sensor
- temperature
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 11
- 239000011593 sulfur Substances 0.000 title claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000003990 capacitor Substances 0.000 claims description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 claims description 5
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Abstract
The utility model relates to the field of infrared carbon and sulfur analysis, in particular to a constant temperature control device of an infrared carbon and sulfur analysis room thermostat, which comprises a temperature sensor, a main control board, a solid-state relay, a heating plate, a switch and a power supply; the temperature sensor, the main control board, the solid-state relay and the heating sheet are all arranged in the box body; the switch and the power supply are arranged outside the box body; the main control board comprises a temperature acquisition module, a controller and a heating control module; the temperature sensor is used for acquiring the temperature in the box body; the output end of the temperature sensor is connected to the temperature acquisition module, the output end of the temperature acquisition module is connected to the input end of the controller, the output end of the controller is connected to the input end of the heating control module, the output end of the heating control module is connected to the control end of the solid-state relay, and the solid-state relay is connected to the heating sheet and used for turning on or off the heating sheet; the power end of the main control board is connected with the power supply through the switch. The utility model discloses make the analysis room be in stable temperature environment, improve the degree of accuracy of analytical data.
Description
Technical Field
The utility model relates to an infrared carbon sulphur analysis field especially relates to a thermostatic control device of infrared carbon sulphur analysis room thermostated container.
Background
A plurality of interference sources exist in the analysis process of the infrared carbon-sulfur analyzer, and the interference sources have different degrees of influence on the detection precision; wherein, in the infrared analysis chamber, the stability of the temperature has a large influence on the absorption of the gas; the temperature change can cause the emission light intensity fluctuation of the infrared light source and the output difference of the pyroelectric sensor, thereby influencing the stability of the test result;
in the prior art, in order to improve the stability of infrared analysis, an infrared analysis chamber, namely an infrared pool, is placed in a heat preservation box body; however, the thermal insulation box only slows down the temperature change, and the temperature of the infrared analysis chamber cannot be kept in a stable state for a long time only by the thermal insulation box body, so that the detection accuracy of the analyzer is not high.
Disclosure of Invention
The utility model aims at providing a thermostatic control device of infrared carbon sulphur analysis room thermostated container makes the analysis room be in stable temperature environment, improves the degree of accuracy of analysis data.
For solving the above technical problem, the technical scheme of the utility model is that: the constant temperature control device of the infrared carbon and sulfur analysis room thermostat is used for carrying out constant temperature control on the temperature in a box body outside the infrared carbon and sulfur analysis room, and comprises a temperature sensor, a main control board, a solid-state relay, a heating sheet, a switch and a power supply; the temperature sensor, the main control board, the solid-state relay and the heating sheet are all arranged in the box body; the switch and the power supply are arranged outside the box body;
the main control board comprises a temperature acquisition module, a controller and a heating control module;
the temperature sensor is used for acquiring the temperature in the box body; the output end of the temperature sensor is connected with the temperature acquisition module, the output end of the temperature acquisition module is connected with the input end of the controller, the output end of the controller is connected with the input end of the heating control module, the output end of the heating control module is connected with the control end of the solid-state relay, and the solid-state relay is connected with the heating sheet and used for turning on or off the heating sheet;
the power end of the main control board is connected with the power supply through the switch.
According to the scheme, the temperature sensor adopts an ADS90 current type temperature sensor.
According to the scheme, the temperature acquisition module comprises a filter circuit and an A/D converter; the filter circuit comprises a nonpolar capacitor C1, a nonpolar capacitor C2, an electrolytic capacitor C3 and a grounding resistor R1, wherein the power supply end of the temperature sensor is connected with a power supply, and the power supply end of the temperature sensor is grounded after being connected with the nonpolar capacitor C1; the output end of the temperature sensor is connected with a grounding resistor R1 and then grounded, and the non-polar capacitor C2 and the electrolytic capacitor C3 are both connected with the grounding resistor R1 in parallel; the output end of the temperature sensor is connected with the input end of the A/D converter.
According to the scheme, the A/D converter adopts an ADS1110 conversion chip.
According to the scheme, the heating control module comprises a voltage division resistor R2, a voltage division resistor R3 and a triode Q1, one end of the voltage division resistor R2 is connected with a power supply to obtain working voltage, the other end of the voltage division resistor R2 is connected with the ground after being connected with the voltage division resistor R3, the middle node of the voltage division resistor R2 and the voltage division resistor R3 is connected with the signal output end of the controller, the base electrode of the triode Q1 is connected with the middle node of the voltage division resistor R2 and the voltage division resistor R3, the collector electrode of the triode Q1 is connected with the negative power supply end of the solid-state relay, and the emitter electrode of the triode Q1 is grounded; the positive power end of the solid-state relay is connected with a power supply; and the signal output end of the solid-state relay is used for connecting the heating sheet.
According to the scheme, the controller adopts an AT89C52 singlechip.
According to the scheme, the control device further comprises a liquid crystal display screen connected to the controller and used for displaying the temperature in the box body.
The utility model discloses following beneficial effect has:
the utility model discloses a temperature sensor detects the box internal temperature after, transmits to the controller through the temperature acquisition module, and the temperature acquisition module is connected in temperature sensor and master controller for carry out filtering and ground protection; the main controller controls whether the heating sheet is heated or not through the solid-state relay, so that the temperature in the box body is stable; the utility model discloses a thermostatic control device avoids the temperature variation to cause the influence to infrared analysis, improves the degree of accuracy of infrared analysis data.
Drawings
FIG. 1 is a schematic block diagram of the overall structure of the embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a temperature sensor and a temperature acquisition module in this embodiment;
fig. 3 is a schematic circuit diagram of the controller, the heating control module, the solid-state relay and the liquid crystal display screen in this embodiment.
Reference numerals are as follows: 1. a temperature sensor; 2. a main control board; 201. a temperature acquisition module; 202. a controller; 203. a heating control module; 3. a solid state relay; 4. a heating plate; 5. a switch; 6. a power source; 7. and a liquid crystal display screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, the present invention is a thermostatic control device for a thermostat of an infrared carbon and sulfur analysis room, which is used for controlling the temperature inside an external box of the infrared carbon and sulfur analysis room, and includes a temperature sensor 1, a main control board 2, a solid state relay 3, a heating plate 4, a switch 5 and a power supply 6; the temperature sensor 1, the main control board 2, the solid-state relay 3 and the heating plate 4 are all arranged in the box body; the switch 5 and the power supply 6 are arranged outside the box body.
The main control board 2 comprises a temperature acquisition module 201, a controller 202 and a heating control module 203; the temperature sensor 1 is used for collecting the temperature in the box body; the output end of the temperature sensor 1 is connected to the temperature acquisition module 201, the output end of the temperature acquisition module 201 is connected to the input end of the controller 202, the output end of the controller 202 is connected to the input end of the heating control module 203, the output end of the heating control module 203 is connected to the control end of the solid-state relay 3, and the solid-state relay 3 is connected to the heating plate 4 and used for opening or closing the heating plate 4; the power 6 end of the main control board 2 is connected to the power 6 through the switch 5, and the switch 5 is arranged outside the box body to facilitate operation of operators.
In this embodiment, the temperature sensor 1 is an ADS90 current type temperature sensor 1.
Referring to fig. 2, the temperature acquisition module 201 includes a filter circuit and an a/D converter;
the filter circuit comprises a nonpolar capacitor C1, a nonpolar capacitor C2, an electrolytic capacitor C3 and a grounding resistor R1, wherein the power supply 6 end of the temperature sensor 1 is connected with the power supply 6, and the power supply 6 end of the temperature sensor 1 is also connected with the nonpolar capacitor C1 and then grounded; the output end of the temperature sensor 1 is connected with a grounding resistor R1 and then grounded, and the non-polar capacitor C2 and the electrolytic capacitor C3 are both connected with the grounding resistor R1 in parallel;
the output end of the temperature sensor 1 is connected with the input end of the A/D converter. The nonpolar capacitors C1 and C2 are both 0.1uF, have small capacitance values and are used for filtering high-frequency interference, and the electrolytic capacitor C3 is 4.7 uF, has large capacitance values and is used for filtering low-frequency interference; the ground resistor R1 protects the circuit.
The A/D converter adopts an ADS1110 conversion chip; it is a precise continuous self-calibrating on-chip 16-bit A/D converter with reference voltage, with differential input. The temperature sensor 1 collects the controlled temperature, the a/D converter converts the temperature into a digital value, and the digital value is transmitted to the controller 202 for processing, and real-time temperature compensation is performed in the temperature collection process.
Referring to fig. 3, the master controller is an AT89C52 single chip microcomputer. The heating control module 203 comprises a voltage dividing resistor R2, a voltage dividing resistor R3 and a triode Q1, one end of the voltage dividing resistor R2 is connected with the power supply 6 to obtain working voltage, the other end of the voltage dividing resistor R3 is connected with the ground, the intermediate node of the voltage dividing resistor R2 and the voltage dividing resistor R3 is connected with the signal output end of the controller 202, the base electrode of the triode Q1 is connected with the intermediate node of the voltage dividing resistor R2 and the voltage dividing resistor R3, the collector electrode of the triode Q1 is connected with the negative power supply 6 end of the solid-state relay 3, and the emitter electrode of the triode Q1 is grounded; the positive power supply 6 end of the solid-state relay 3 is connected with the power supply 6; and the signal output end OUT of the solid-state relay 3 is used for being connected with the heating plate 4.
When the temperature detected by the temperature sensor 1 is lower than the preset value of the single chip microcomputer, the single chip microcomputer P2.4 outputs high level, the triode Q1 responds, the emitter and the collector are conducted, the solid state relay 3SSR works, and at the moment, the heating plate 4 starts to heat; when the temperature detected by the temperature sensor 1 reaches the preset value of the single chip microcomputer, the single chip microcomputer P2.4 outputs low level, the triode Q1 does not work, the emitter and the collector are not conducted, the pin 4 at the negative power supply 6 end of the solid state relay 3SSR is equivalently suspended, the solid state relay 3 does not work, and at the moment, the heating plate 4 does not heat. In this embodiment, the preset value of the single chip microcomputer is set to 48 ℃.
The control device further comprises a liquid crystal display screen 7 connected to the controller 202 and used for displaying the temperature in the box body, and the liquid crystal display screen 7 is located outside the box body and facilitates observation of an operator. In this embodiment, the lcd panel 7 employs LM 016L.
The utility model discloses the part that does not relate to all is the same with prior art or adopts prior art to realize.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (7)
1. Constant temperature control device of infrared carbon sulphur analysis room thermostated container for carry out thermostatic control to the temperature in the infrared carbon sulphur analysis outdoor unit box, its characterized in that: the device comprises a temperature sensor, a main control board, a solid-state relay, a heating sheet, a switch and a power supply; the temperature sensor, the main control board, the solid-state relay and the heating sheet are all arranged in the box body; the switch and the power supply are arranged outside the box body;
the main control board comprises a temperature acquisition module, a controller and a heating control module;
the temperature sensor is used for acquiring the temperature in the box body; the output end of the temperature sensor is connected with the temperature acquisition module, the output end of the temperature acquisition module is connected with the input end of the controller, the output end of the controller is connected with the input end of the heating control module, the output end of the heating control module is connected with the control end of the solid-state relay, and the solid-state relay is connected with the heating sheet and used for turning on or off the heating sheet;
the power end of the main control board is connected with the power supply through the switch.
2. The thermostat control device of an infrared carbon sulfur analysis chamber thermostat according to claim 1, characterized in that: the temperature sensor adopts an ADS90 current type temperature sensor.
3. The thermostat control device of an infrared carbon and sulfur analysis chamber thermostat according to claim 1, characterized in that: the temperature acquisition module comprises a filter circuit and an A/D converter;
the filter circuit comprises a nonpolar capacitor C1, a nonpolar capacitor C2, an electrolytic capacitor C3 and a grounding resistor R1, wherein the power supply end of the temperature sensor is connected with a power supply, and the power supply end of the temperature sensor is grounded after being connected with the nonpolar capacitor C1; the output end of the temperature sensor is connected with a grounding resistor R1 and then grounded, and the non-polar capacitor C2 and the electrolytic capacitor C3 are both connected with the grounding resistor R1 in parallel;
the output end of the temperature sensor is connected with the input end of the A/D converter.
4. The thermostat control device of an infrared carbon sulfur analysis chamber thermostat according to claim 3, characterized in that: the A/D converter adopts an ADS1110 conversion chip.
5. The thermostat control device of an infrared carbon and sulfur analysis chamber thermostat according to claim 1, characterized in that: the heating control module comprises a voltage division resistor R2, a voltage division resistor R3 and a triode Q1, one end of the voltage division resistor R2 is connected with a power supply to obtain working voltage, the other end of the voltage division resistor R2 is connected with the ground after being connected with the voltage division resistor R3, the intermediate node of the voltage division resistor R2 and the intermediate node of the voltage division resistor R3 are connected with the signal output end of the controller, the base electrode of the triode Q1 is connected with the intermediate node of the voltage division resistor R2 and the voltage division resistor R3, the collector electrode of the triode Q1 is connected with the negative power supply end of the solid-state relay, and the emitter electrode of the triode Q1 is grounded; the positive power end of the solid-state relay is connected with a power supply; and the signal output end of the solid-state relay is used for connecting the heating sheet.
6. The thermostat control device of an infrared carbon sulfur analysis chamber thermostat according to claim 1, characterized in that: the controller adopts an AT89C52 singlechip.
7. The thermostat control device of an infrared carbon and sulfur analysis chamber thermostat according to claim 1, characterized in that: the control device also comprises a liquid crystal display screen connected with the controller and used for displaying the temperature in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121204912.2U CN217332157U (en) | 2021-05-31 | 2021-05-31 | Constant temperature control device of infrared carbon and sulfur analysis room thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121204912.2U CN217332157U (en) | 2021-05-31 | 2021-05-31 | Constant temperature control device of infrared carbon and sulfur analysis room thermostat |
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| Publication Number | Publication Date |
|---|---|
| CN217332157U true CN217332157U (en) | 2022-08-30 |
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| CN202121204912.2U Expired - Fee Related CN217332157U (en) | 2021-05-31 | 2021-05-31 | Constant temperature control device of infrared carbon and sulfur analysis room thermostat |
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| CN (1) | CN217332157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117970973A (en) * | 2024-03-26 | 2024-05-03 | 浙江浙大鸣泉科技有限公司 | Temperature control device of greenhouse gas analyzer |
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2021
- 2021-05-31 CN CN202121204912.2U patent/CN217332157U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117970973A (en) * | 2024-03-26 | 2024-05-03 | 浙江浙大鸣泉科技有限公司 | Temperature control device of greenhouse gas analyzer |
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Granted publication date: 20220830 |