Convenient tool for auxiliary calibration of infrared temperature measuring point for high-temperature furnace
By designing a combination of infrared plugs, anti-explosion light-emitting components, and infrared graphite tubes, convenient calibration of infrared thermometers in high-temperature furnaces has been achieved, solving the problems of high calibration difficulty and high risk, improving temperature measurement accuracy and safety, and applicable to infrared graphite tubes of various sizes.
Patent Information
- Application Number
- CN202521608391.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
- Estimated Expiration
- 2035-07-30
AI Technical Summary
Existing infrared thermometers are difficult, dangerous, and time-consuming to calibrate in high-temperature furnaces. In particular, there is a risk of suffocation and explosion when operating in confined spaces, which affects the accuracy and efficiency of temperature measurement.
A convenient tooling for auxiliary calibration of infrared temperature measuring points in a high-temperature furnace was designed, including an infrared plug, an anti-explosion light-emitting element, an infrared graphite tube, and a reducing connector. The position and angle of the infrared thermometer are adjusted externally to avoid personnel entering the furnace for operation, and the light source of the anti-explosion light-emitting element is used to align the infrared thermometer's measuring point.
It improves temperature measurement accuracy and operational safety, reduces the risk of personnel entering the furnace, simplifies the calibration process, and improves calibration efficiency and applicability. It is suitable for infrared graphite tubes of different sizes.
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Figure CN224499701U_ABST
Abstract
Description
Technical Field
[0001] This utility model provides a convenient tooling for auxiliary calibration of infrared temperature measurement points in high-temperature furnaces, belonging to the technical field of carbon-based material production equipment. Background Technology
[0002] Currently, most temperature measurement systems for high-temperature furnace equipment use thermocouples, resistance temperature detectors (RTDs), and infrared thermometers. Thermocouples and RTDs typically measure temperatures below 2000℃, while infrared thermometers can measure temperatures up to 3200℃. Therefore, infrared thermometers are widely used in various high-temperature furnace equipment.
[0003] However, during use, it was found that the high-temperature infrared thermometer requires position calibration. Positional deviation directly affects the test results, with a temperature deviation of ±15℃ compared to the correct temperature. Therefore, calibrating the infrared thermometer is a crucial step in the temperature measurement system, and ensuring that the infrared measurement point of the infrared thermometer is at the center of the detection becomes a key factor.
[0004] The adjustment methods of existing infrared thermometer debugging devices are mostly bolt adjustment or spring adjustment, and their core working principle is the same: by adjusting the position or angle of the infrared thermometer, the infrared test point emitted by the instrument is accurately centered.
[0005] During the installation and commissioning phase, the device requires two operators to work together while the furnace is in a cold state: one person needs to enter the temperature measurement zone inside the high-temperature furnace to emit a light signal, while the other person observes the position of the light signal through the infrared observation window outside the furnace and simultaneously calibrates the position and angle of the infrared thermometer.
[0006] However, the interior of a high-temperature furnace is a confined, enclosed space, posing a risk of suffocation; additionally, the high concentration of dust inside presents an explosion hazard. Furthermore, the limited space in some smaller high-temperature devices prevents personnel from staying inside for extended periods. These limitations necessitate time-consuming and repeated adjustments for infrared calibration, ultimately resulting in additional waste of personnel and time resources. Utility Model Content
[0007] To address the technical problems of high debugging difficulty, high risk, and long time consumption in existing infrared thermometer debugging devices, this utility model proposes a convenient tooling for auxiliary calibration of infrared temperature measurement points in high-temperature furnaces.
[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a convenient tooling for auxiliary calibration of infrared temperature measurement points for high-temperature furnaces, including an infrared plug, a number of fixed brackets are provided on the infrared plug, and the fixed brackets are fixedly connected to an anti-explosion light-emitting component by a clamping device.
[0009] The infrared plug is also provided with a groove, which is coaxially arranged with the anti-explosion light-emitting component. The opening direction of the groove is the same as the light-emitting direction of the light-emitting part of the anti-explosion light-emitting component. A first through hole is provided on one side wall of the groove, and the first through hole, the light-emitting part of the anti-explosion light-emitting component and the observation hole of the infrared thermometer are corresponding.
[0010] The groove is connected to one end of the infrared graphite tube, and the other end of the infrared graphite tube is connected to the infrared bracket assembly. The infrared thermometer assembly can also be adjusted and connected to an infrared thermometer, and the infrared temperature measurement indicator on the infrared thermometer corresponds to the first through hole.
[0011] The groove, the infrared graphite tube, and the infrared thermometer are coaxially arranged, with the infrared graphite tube passing through the insulation felt laid inside the furnace body.
[0012] Furthermore, a reducing connector is provided between the infrared plug and the infrared graphite tube via a groove.
[0013] Furthermore, the infrared plug has a circular cross-section.
[0014] Furthermore, multiple fixed supports are evenly distributed circumferentially along the axis of the infrared plug on the outer wall of the infrared plug.
[0015] Furthermore, the infrared temperature measurement indicator is shaped like a cross.
[0016] Furthermore, both the infrared plug and the fixing bracket are made of SUS304 material.
[0017] Furthermore, the explosion-proof light-emitting component is an explosion-proof flashlight.
[0018] The advantages of this utility model over the prior art are as follows:
[0019] 1. This utility model, through the cooperation of an anti-explosion light-emitting component, a first through hole on the infrared plug, an infrared bracket assembly, and an infrared thermometer, facilitates the alignment of the infrared temperature indicator on the infrared thermometer with the temperature to be measured area inside the furnace, thereby improving the accuracy of temperature measurement. Furthermore, compared to traditional infrared thermometer calibration devices, it avoids the need for an operator inside the furnace to coordinate with an operator outside the furnace to align the infrared temperature measurement point emitted by the infrared thermometer with the temperature to be measured area inside the furnace. This utility model only requires installing the convenient tooling for auxiliary calibration of the infrared temperature measurement point on the infrared graphite tube; the relative position of the infrared thermometer can then be adjusted outside the furnace based on the light source passing through the first through hole. This effectively reduces the risk of accidents when an operator enters the furnace to calibrate the temperature measurement point, and improves the efficiency and accuracy of infrared calibration.
[0020] 2. The infrared plug, infrared graphite tube and reducing connector of this utility model can be used together to make infrared graphite tubes of different sizes, which improves the applicability of the convenient tooling for auxiliary calibration of infrared temperature measurement points in high temperature furnaces.
[0021] 3. This utility model has a simple structure, is easy to install, and is very economical. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings:
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a cross-sectional view of the present invention;
[0025] Figure 3 This is a schematic diagram of the structure of the convenient tooling for auxiliary calibration of infrared temperature measuring points in a high-temperature furnace, which is used in conjunction with the furnace body.
[0026] Figure 4 This is a schematic diagram showing the interaction between the infrared temperature measurement indicator and the first through hole displayed in the observation window of the infrared tester.
[0027] Figure 5 for Figure 3 An enlarged schematic diagram of part A in the middle;
[0028] In the figure: 1 is the infrared plug, 2 is the fixed bracket, 3 is the fixing bolt, 4 is the anti-flame element, 5 is the infrared graphite tube, 6 is the infrared bracket assembly, 7 is the infrared thermometer, 8 is the furnace body, 9 is the insulation felt, 10 is the infrared temperature indicator, 11 is the first through hole, and 12 is the groove. Detailed Implementation
[0029] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] like Figures 1 to 5 As shown, this utility model provides a convenient tooling for auxiliary calibration of infrared temperature measuring points in a high-temperature furnace, including an infrared plug 1. The infrared plug 1 has a circular cross-section, and several fixed supports 2 are fixedly connected to the infrared plug 1. The fixed supports 2 are generally square plate-shaped structures, evenly distributed along the circumference of the infrared plug 1 on the outer wall of the infrared plug 1, and the fixed supports 2 are parallel to the axis of the infrared plug 1. In this embodiment, three fixed supports 2 are fixedly connected.
[0032] A clamping device is installed on the fixed bracket 2, and the clamping device is fixedly connected to the anti-flame-emitting component 4. In this embodiment, the fixed bracket 2 has two threaded holes, and the two threaded holes are threaded with fixing bolts 3. The threaded holes and the threaded fixing bolts 3 cooperate with each other. The fixing bolts 3 threadedly connected to the three fixed brackets 2 constitute the clamping device. The multiple fixing bolts 3 cooperate with the anti-flame-emitting component 4, and under the action of friction, the anti-flame-emitting component 4 is fixedly connected to the clamping device.
[0033] In this utility model, the explosion-proof light-emitting component 4 is an explosion-proof flashlight.
[0034] The infrared plug 1 is also provided with a groove 12, which is coaxially arranged with the anti-explosive light-emitting component 4. The opening direction of the groove 12 is the same as the light-emitting direction of the light-emitting part of the anti-explosive light-emitting component 4. The anti-explosive light-emitting component 4 is placed on the outer side wall of the bottom of the groove 12. A first through hole 11 is provided at the bottom of the groove 12, which corresponds to the light-emitting part of the anti-explosive light-emitting component 4. The first through hole 11 and the light-emitting part of the anti-explosive light-emitting component 4 correspond to the observation hole of the infrared thermometer 7.
[0035] The groove 12 is threaded to one end of the infrared graphite tube 5, and the other end of the infrared graphite tube 5 is threaded to the infrared support assembly 6. The infrared thermometer 7 assembly is fixedly connected to the furnace body 8 via a flange. The infrared thermometer 7 assembly can also be adjusted and fixedly connected to the infrared thermometer 7. The infrared temperature indicator 10 on the infrared thermometer 7 corresponds to the first through hole 11. The groove 12, the infrared graphite tube 5, and the infrared thermometer 7 are coaxially arranged. The infrared temperature indicator 10 is in the shape of a cross.
[0036] The infrared graphite tube 5 is inserted into the insulation felt 9 laid inside the furnace body 8, and the outer wall of the infrared graphite tube 5 cooperates with the insulation felt 9 laid inside the furnace body 8.
[0037] The infrared plug 1 is connected to the infrared graphite tube 5 via the groove 12 by a reducing connector. The size of the reducing connector is adapted to the diameter of the infrared graphite tube 5. By replacing the reducing connector with different sizes, the convenient tooling for auxiliary calibration of infrared temperature measurement points in high-temperature furnaces of this utility model can be applied to infrared graphite tubes 5 of different sizes.
[0038] The interaction between the infrared thermometer 7, the infrared support assembly 6, and the furnace body 8 is existing technology and will not be elaborated here.
[0039] The working principle of this utility model:
[0040] When the furnace body 8 is in a cold state, the infrared support assembly 6 is installed on the furnace body 8. After the infrared thermometer 7 and the infrared graphite tube 5 are installed on the infrared support assembly 6, the groove 12 of the infrared plug 1 is threaded onto the infrared graphite tube 5. Then, the power switch of the anti-burst light-emitting component 4 is operated to make the light-emitting part of the anti-burst light-emitting component 4 emit light. The light source passes through the first through hole 11 and the infrared graphite tube 5 and then enters the observation hole of the infrared thermometer 7. Next, turn on the power switch of the infrared thermometer 7. The relative position of the infrared temperature measuring indicator 10 on the infrared thermometer 7 and the light source can be observed through the observation hole of the infrared thermometer 7. Adjust the angle and position of the infrared thermometer 7 relative to the infrared plug 1 by adjusting the infrared bracket assembly 6, so that the infrared temperature measuring indicator 10 on the infrared thermometer 7 coincides with the light source emitted from the first through hole 11. At this time, the position within the furnace body 8 corresponding to the infrared temperature measuring indicator 10 on the infrared thermometer 7 is the temperature zone to be measured. After the infrared bracket assembly 6 secures and locks the infrared thermometer 7, remove the infrared plug 1 from the infrared graphite tube 5 to disassemble the convenient tooling for auxiliary calibration of the infrared temperature measuring point in the high-temperature furnace of this invention. Finally, thread the graphite infrared temperature measuring plug onto the infrared graphite tube 5. At this time, the position of the temperature measuring point of the infrared thermometer 7 remains unchanged. The operation is simple and convenient, improving the efficiency of the infrared thermometer 7 debugging.
[0041] Regarding the specific structure of this utility model, it should be noted that the connection relationships between the various component modules adopted in this utility model are definite and achievable. Except as specifically described in the embodiments, their specific connection relationships can bring about corresponding technical effects and solve the technical problems proposed by this utility model without relying on the execution of corresponding software programs. The models of the components, modules, and specific components appearing in this utility model, the connection methods between them, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, unless specifically described, are all publicly disclosed content in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by those skilled in the art before the application date, or belong to conventional technology, common knowledge, and other existing technologies in this field. There is no need to elaborate, which makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain corresponding physical products based on this technical means.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A convenient tooling for auxiliary calibration of infrared temperature measurement points in a high-temperature furnace, characterized in that: It includes an infrared plug (1), and several fixed brackets (2) are provided on the infrared plug (1). The fixed brackets (2) are fixedly connected to an anti-explosive light-emitting component (4) by a clamping device. The infrared plug (1) is also provided with a groove (12), the groove (12) is coaxially arranged with the anti-explosion light-emitting component (4), the opening direction of the groove (12) is the same as the light-emitting direction of the light-emitting part of the anti-explosion light-emitting component (4), a first through hole (11) is provided on one side wall of the groove (12), the first through hole (11), the light-emitting part of the anti-explosion light-emitting component (4) corresponds to the observation hole of the infrared thermometer (7); The groove (12) is connected to one end of the infrared graphite tube (5), and the other end of the infrared graphite tube (5) is connected to the infrared bracket assembly (6). The infrared thermometer (7) assembly can also be adjusted and connected to the infrared thermometer (7). The infrared temperature measurement indicator (10) on the infrared thermometer (7) corresponds to the first through hole (11). The groove (12), the infrared graphite tube (5), and the infrared thermometer (7) are coaxially arranged, and the infrared graphite tube (5) is inserted into the heat insulation felt (9) laid inside the furnace body (8).
2. The convenient tooling for auxiliary calibration of infrared temperature measurement points in a high-temperature furnace according to claim 1, characterized in that: The infrared plug (1) is connected to the infrared graphite tube (5) via a groove (12) and a reducing connector is also provided.
3. The convenient tooling for auxiliary calibration of infrared temperature measurement points in a high-temperature furnace according to claim 1, characterized in that: The infrared plug (1) has a circular cross-section.
4. The convenient tooling for auxiliary calibration of infrared temperature measuring points in a high-temperature furnace according to claim 1, characterized in that: Multiple fixed brackets (2) are evenly distributed around the outer wall of the infrared plug (1) along the axis of the infrared plug (1).
5. The convenient tooling for auxiliary calibration of infrared temperature measuring points in a high-temperature furnace according to claim 1, characterized in that: The infrared temperature measurement indicator (10) is in the shape of a cross.
6. The convenient tooling for auxiliary calibration of infrared temperature measurement points in a high-temperature furnace according to claim 1, characterized in that: Both the infrared plug (1) and the fixed bracket (2) are made of SUS304 material.
7. The convenient tooling for auxiliary calibration of infrared temperature measuring points in a high-temperature furnace according to claim 1, characterized in that: The explosion-proof light component (4) is for explosion-proof flashlights.