Different material coating temperature detection device with self-calibration capability
By designing a coating temperature detection and calibration device, and using circulating fluid to simulate a heat source and heat-conducting hose to transfer heat energy, the problem of detecting and calibrating the thermal insulation performance of coating materials was solved, thus improving the user experience of heated cigarettes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU TOBACCO RES INST OF CNTC
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-08
AI Technical Summary
The lack of effective testing and calibration devices for the thermal insulation performance of different coating materials in the current technology leads to a lack of standards when selecting appropriate coating materials, which affects the user experience of heated cigarettes.
Design a coating temperature detection device that includes a circulating flow channel, a circulating pump, a heating module, a heat-conducting hose, and a temperature detection unit. The device simulates a heat source through circulating fluid and transfers heat energy through the heat-conducting hose. It combines infrared thermometry equipment for temperature calibration to achieve the detection and calibration of the thermal insulation performance of the coating material.
It enables the testing and calibration of the thermal insulation performance of different coating materials, improves the accuracy of coating material selection, and enhances the user experience of heated cigarettes.
Smart Images
Figure CN224216180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco machinery technology, specifically to a device for detecting and calibrating the temperature of coatings made of different materials. Background Technology
[0002] New tobacco products represent a new strategic area for the tobacco industry, with heated cigarettes becoming a hot development area. Among these new tobacco products, heated cigarettes use real tobacco ingredients, and their smoking experience and flavor characteristics are closer to traditional cigarettes, making them more acceptable and appealing to consumers.
[0003] When smoking heated cigarettes, smoke is produced by heating without burning, so a smoking device with a built-in heater is needed to heat the cigarettes. The heating temperature is required to be relatively high. However, the smoking device is usually made of metal or a combination of metal and plastic, which has a certain thermal conductivity. The heat generated by heating will be transferred outward, thus affecting the user experience.
[0004] To address the issue of heat conduction, current research focuses on two aspects: structural design to insulate heat and the use of coating materials on the inside and outside of flues or smoking appliances to achieve insulation. Currently, there are numerous coating materials on the market, but there is a lack of comparative standards and devices for selecting suitable materials. To better simulate the usage environment and compare the insulation performance of different coating materials, it is necessary to develop a temperature detection device for different coating materials, as well as a temperature calibration device for that detection device.
[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a temperature detection device for different material coatings that can detect the thermal insulation performance of different coating materials, and a calibration device for calibrating the temperature of the detection device.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a temperature detection device for coatings of different materials, including a circulation channel, a circulation pump, a heating module, a heat-conducting hose, a first temperature detection unit, and a second temperature detection unit;
[0008] A gap is provided in the circulation channel, and the heat-conducting hose is connected to the gap to form a complete loop;
[0009] The heating module is used to heat the fluid in the circulation channel, and the circulation pump is used to drive the fluid flow in the circulation channel;
[0010] The outer peripheral surface of the heat-conducting hose serves as the heat-conducting contact surface of the coating element under test, and is used to transfer heat energy to the coating element under test.
[0011] The first temperature detection unit is used to detect the temperature of the fluid in the circulating channel, and the second temperature detection unit is used to detect the surface temperature of the coating element to be tested.
[0012] Based on the above, the circulating channel is an annular channel, and the heat-conducting hose is a straight hose.
[0013] Based on the above, the material of the heat-conducting hose is rubber.
[0014] Based on the above, the heating module is an electric heating wire disposed inside the flow channel or on the inner wall of the flow channel, and the structure of the circulating flow channel is a heat-insulating structure.
[0015] Based on the above, a flow rate sensor is installed in the circulating channel.
[0016] Based on the above, the coating element under test is a circular tube structure, and the entire coating element under test is fitted outside the heat-conducting flexible tube.
[0017] Based on the above, both the first temperature detection unit and the second temperature detection unit are thermocouples.
[0018] A temperature detection device for coatings of different materials with self-calibration capability includes the aforementioned temperature detection device for coatings of different materials and a temperature calibration unit, wherein the temperature calibration unit is used to detect the temperature of the surface of the coating element to be tested.
[0019] Based on the above, the temperature calibration unit is an infrared temperature measurement device.
[0020] This invention has substantial features and advancements compared to existing technologies. Specifically, this invention utilizes a circulating flow channel to provide circulating fluid, simulates a fluid heat source by heating the circulating fluid, and then transfers the heat energy to the coating element under test through a heat-conducting hose. The surface temperature of the coating element under test is then measured to obtain the heat insulation capacity of different coatings, thereby achieving the purpose of selecting different coating materials.
[0021] The purpose of using a thermally conductive hose is to ensure a closer fit to the surface of the coated component under test.
[0022] The coating element under test is designed as a circular tube structure with a coating on its inner side or surface, which results in a higher degree of fit with the heat-conducting hose and a higher degree of heat transfer simulation. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the temperature detection device for different material coatings in Embodiment 1 of this utility model.
[0024] Figure 2 This is a schematic diagram of the structure of the temperature detection device for different material coatings in Embodiment 2 of this utility model.
[0025] In the diagram: 1. Circulation channel; 2. Circulation pump; 3. Heating module; 4. Heat-conducting hose; 5. First temperature detection unit; 6. Second temperature detection unit; 7. Coating element under test; 8. Flow rate sensor; 9. Temperature calibration unit. Detailed Implementation
[0026] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0027] Example 1
[0028] like Figure 1 As shown, a temperature detection device for coatings of different materials includes a circulation channel 1, a circulation pump 2, a heating module 3, a heat-conducting hose 4, a first temperature detection unit 5, and a second temperature detection unit 6.
[0029] A notch is provided in the circulation channel 1, and the heat-conducting hose 4 is connected to the notch to form a complete loop. In this embodiment, the circulation channel 1 is an annular channel, and the heat-conducting hose 4 is a straight hose. The outer circumferential surface of the heat-conducting hose 4 serves as the heat-conducting contact surface of the coating element 7 under test, and is used to transfer heat energy to the coating element 7 under test.
[0030] In this embodiment, the structure of the circulation channel 1 is itself made of heat-insulating material to prevent fluid temperature loss. The material of the heat-conducting hose 4 is rubber, and the wall thickness should not be too thick. It needs to have heat transfer capacity. The main reason for choosing the heat-conducting hose 4 is that the flue structure of the smoking device is usually a round hole adapted to the cigarette. The heat-conducting hose 4 has a higher degree of simulation. At the same time, the structure of the coating element 7 under test is designed as a round tube, and a heat-insulating coating is set on the inner or outer wall. When the fluid passes through the heat-conducting hose 4, the hose expands to fit tightly against the inner wall of the round tube, so as to fully transfer the heat to the outside.
[0031] The heating module 3 is used to heat the fluid in the circulation channel 1, and the circulation pump 2 is used to drive the fluid flow in the circulation channel. In this embodiment, the heating module 3 uses an electric heating wire, which can be set on the inner wall or inside of the annular channel 1. The fluid is gradually heated to the required temperature by circulating through the electric heating wire.
[0032] To better simulate a scenario that closely resembles airflow, a flow velocity sensor 8 is installed in the circulating channel.
[0033] The first temperature detection unit 5 is used to detect the temperature of the fluid in the circulating channel, and the second temperature detection unit 6 is used to detect the surface temperature of the coating element 7 to be tested.
[0034] In this embodiment, both the first temperature detection unit 5 and the second temperature detection unit 6 are thermocouples.
[0035] Technical principle explanation:
[0036] Since the smoke channel in the smoking device is a circular hole structure that fits the cigarette, a heat-conducting hose 4 is used for simulation. Because the smoke and the inner wall of the smoking device have a very high degree of adhesion, the heat-conducting hose 4 is used to simulate the expansion of the fluid as it passes through, thus making it highly adhered to the inner wall of the coating element 7 under test. Since the smoke is flowing during the heat transfer process, a circulating flow channel is used to heat the fluid, so that the fluid imitates the shape of the smoke as it passes through the heat-conducting hose 4.
[0037] The heat of flue gas is simulated by fully heating the fluid using heating module 3, and the fluid temperature is monitored by first temperature detection unit 5 to provide reference values.
[0038] Then, the second temperature detection unit 6 is used to detect the surface temperature of the coating element 7 under test, thereby realizing the detection of the thermal insulation performance of the coating.
[0039] During the comparison, by replacing different coating elements 7, the heat insulation performance of coating elements 7 with different coatings can be compared, so as to select a suitable coating material for smoking devices that heat cigarettes.
[0040] Example 2
[0041] like Figure 2 As shown, a temperature detection device for different material coatings with self-calibration capability includes the aforementioned temperature detection device for different material coatings and a temperature calibration unit 9. The temperature calibration unit 9 is used to detect the temperature of the surface of the coating element 7 to be tested. In this embodiment, the temperature calibration unit 9 is an infrared thermometer.
[0042] Its main purpose is to calibrate the second temperature detection unit 6.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A temperature detection device for coatings of different materials, characterized in that: It includes a circulation channel, a circulation pump, a heating module, a heat-conducting hose, a first temperature detection unit, and a second temperature detection unit; A gap is provided in the circulation channel, and the heat-conducting hose is connected to the gap to form a complete loop; The heating module is used to heat the fluid in the circulation channel, and the circulation pump is used to drive the fluid flow in the circulation channel; The outer peripheral surface of the heat-conducting hose serves as the heat-conducting contact surface of the coating element under test, and is used to transfer heat energy to the coating element under test. The first temperature detection unit is used to detect the temperature of the fluid in the circulating channel, and the second temperature detection unit is used to detect the surface temperature of the coating element to be tested.
2. The temperature detection device for different material coatings according to claim 1, characterized in that: The circulating channel is an annular channel, and the heat-conducting hose is a straight hose.
3. The temperature detection device for different material coatings according to claim 1, characterized in that: The heat-conducting hose is made of rubber.
4. The temperature detection device for different material coatings according to claim 1, characterized in that: The heating module is an electric heating wire disposed inside the flow channel or on the inner wall of the flow channel, and the structure of the circulating flow channel is a heat-insulating structure.
5. The temperature detection device for different material coatings according to claim 1, characterized in that: A flow rate sensor is installed in the circulation channel.
6. The temperature detection device for coatings of different materials according to claim 1, characterized in that: The coating element under test is a circular tube structure, and the entire coating element under test is fitted outside the heat-conducting hose.
7. The temperature detection device for different material coatings according to claim 1, characterized in that: Both the first temperature detection unit and the second temperature detection unit are thermocouples.
8. A temperature detection device for coatings of different materials with self-calibration capability, characterized in that: The device includes a temperature detection device and a temperature calibration unit for different material coatings as described in any one of claims 1-7, wherein the temperature calibration unit is used to detect the temperature of the surface of the coating element to be tested.
9. The temperature detection device for different material coatings with self-calibration capability according to claim 8, characterized in that: The temperature calibration unit is an infrared temperature measurement device.