Optical thermodetector detection device
By designing an optical thermometer detection device including flange connection port, transition flange, rear-loading assembly, infrared thermometer and graphite tube, the problem of inaccurate temperature detection and control in high temperature and high pressure state is solved, and stable temperature detection and control are achieved.
Patent Information
- Application Number
- CN202420799549.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The prior art is difficult to achieve accurate temperature detection and control in high temperature and high pressure states, resulting in inaccurate monitoring temperature, large up and down temperature measurement jumps, and the temperature control cannot be carried out stably.
An optical thermometer detection device is designed, including flange connection port, transition flange, rear-loading assembly, infrared thermometer and graphite tube. By continuously passing the process gas and utilizing the breathable performance of the graphite tube, the airflow can be stably entered into the heating furnace, achieving stable temperature detection and control.
Through this device, temperature detection and control are more stable under high temperature and high pressure state, reducing temperature fluctuations and improving the accuracy and stability of temperature control.
Smart Images
Figure CN222784203U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of optical detection, in particular to an optical temperature measuring instrument detection device. Background Art
[0002] With the continuous development of material science, the equipment that meets this development requires more research, and the same is true for heating equipment. Therefore, the equipment has higher and higher requirements for temperature increase, and the accuracy of temperature control is also getting higher and higher. At the same time, it is also required to have a higher pressure state, which poses a great challenge to the research and development of the equipment.
[0003] The existing technology can only detect and control temperature under vacuum conditions. Under the complex conditions of high temperature and high pressure, it is easy to cause inaccurate temperature monitoring and large temperature fluctuations, resulting in unstable temperature control and increasing the workload of the heating transformer.
[0004] Therefore, the utility model provides an optical temperature measuring instrument detection device to solve the problems raised in the above background technology. Utility Model Content
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An optical thermometer detection device comprises a flange connection port, the flange connection port is installed on the furnace body of a heating furnace, one end of the flange connection port is provided with a transition flange, a rear pipe assembly and an infrared thermometer in sequence; the other end of the flange connection port is provided with a graphite tube;
[0007] The transition flange is provided with a water inlet and an air inlet, the water inlet is connected to a circulating cooling water source, and the air inlet is connected to an air source.
[0008] A further solution: the transition flange is fixedly connected to the rear pipe assembly, the rear pipe assembly is provided with a plurality of adjustment screw holes along the circumferential direction, the adjustment screw holes are threaded with adjustment bolts, and the adjustment bolts are in contact with the transition flange.
[0009] A further solution: three adjusting screw holes are provided, and the center line connecting the three adjusting screw holes forms a triangle.
[0010] A further solution includes a pressure sensor disposed in the heating furnace.
[0011] A further solution: an air pressure sensor is provided between the air inlet and the process gas pipeline.
[0012] A further solution: an observation mirror is provided between the transition flange and the flange connection port.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The equipment previously used traditional thermocouples for temperature detection. When the temperature reached 1000°C, the optical thermometer compared the temperature with the thermocouple but did not participate in temperature control. When it exceeded 1500°C, the temperature control program system would switch the optical thermometer to work. At this time, 7L / min of process gas was continuously introduced through the air inlet of the transition flange. The graphite tube has a certain air permeability, and the gas will diffuse out of the graphite tube. With the stable airflow entering, the temperature gradually stabilized, and the detected temperature also stabilized accordingly.
[0015] 2. The internal pressure of the heating furnace is detected by the pressure sensor, and the pressure of the gas source is detected by the air pressure sensor. The difference between the gas source pressure and the internal pressure of the heating furnace is kept constant, so as to achieve a constant purge gas flow. In addition, the purge gas source pressure is greater than the internal pressure of the heating furnace, so that the optical lens of the pressure sensor is protected from contamination by unclean gas in the heating furnace. At the same time, the constant purge gas flow can also cool the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0017] Figure 1 It is a structural schematic diagram of an optical thermometer detection device;
[0018] Figure 2 for Figure 1 Magnified view of area A.
[0019] In the figure: 1. Heating furnace; 2. Flange connection port; 3. Transition flange; 4. Rear pipe assembly; 5. Infrared thermometer; 6. Graphite tube; 41. Adjusting bolt. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0022] See also Figures 1-2 In the embodiment of the utility model, an optical thermometer detection device includes a flange connection port 2, which is installed on the furnace body of a heating furnace 1, and one end of the flange connection port 2 is provided with a transition flange 3, a rear pipe assembly 4 and an infrared thermometer 5 in sequence; the other end of the flange connection port 2 is provided with a graphite tube 6, and an observation mirror is provided between the transition flange 3 and the flange connection port 2; a water inlet and an air inlet are provided on the transition flange 3, the water inlet is connected to a circulating cooling water source, and the air inlet is connected to an air source.
[0023] 7L / min of process gas is continuously introduced through the air inlet of the transition flange 3. The graphite tube 6 has a certain air permeability, and the gas will diffuse out of the graphite tube 6. With the entry of stable airflow, the temperature gradually stabilizes, and the detected temperature also stabilizes accordingly.
[0024] Furthermore, the transition flange 3 is fixedly connected to the rear pipe assembly 4, and the rear pipe assembly 4 is provided with three adjusting screw holes along the circumferential direction. Adjusting bolts 41 are threaded in the adjusting screw holes, and the adjusting bolts 41 are abutted against the transition flange 3. The center lines of the three adjusting screw holes are triangular, forming a stable structure. By controlling the depth of the three adjusting screw holes extending out of the adjusting screw holes, the rear pipe assembly 4 is deflected relative to the transition flange 3, thereby adjusting the light position of the infrared thermometer 5.
[0025] In this embodiment, a pressure sensor is provided in the heating furnace 1, and an air pressure sensor is provided between the air inlet and the process gas pipeline. The internal pressure of the heating furnace 1 is detected by the pressure sensor, and the pressure of the gas source is detected by the air pressure sensor, and the difference between the gas source pressure and the internal pressure of the heating furnace 1 is kept constant, so as to achieve a constant purge gas flow. In addition, the purge gas source pressure is greater than the internal pressure of the heating furnace 1, so that the optical lens of the pressure sensor is protected from contamination by unclean gas in the heating furnace 1, and the constant purge gas flow can also cool the optical lens.
[0026] The present invention is limited only by the claims and their full scope and equivalents. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.
Claims
1. An optical temperature measuring instrument detection device, comprising a flange connection port (2), characterized in that: The flange connection port (2) is installed on the furnace body of the heating furnace (1), and one end of the flange connection port (2) is provided with a transition flange (3), a rear pipe assembly (4) and an infrared thermometer (5) in sequence; A graphite tube (6) is provided at the other end of the flange connection port (2); The transition flange (3) is provided with a water inlet and an air inlet, the water inlet is connected to a circulating cooling water source, and the air inlet is connected to an air source.
2. The optical thermometer detection device according to claim 1, characterized in that: The transition flange (3) is fixedly connected to the rear pipe assembly (4); the rear pipe assembly (4) is provided with a plurality of adjustment screw holes along the circumferential direction; adjustment bolts (41) are screwed into the adjustment screw holes; the adjustment bolts (41) are in contact with the transition flange (3).
3. The optical thermometer detection device according to claim 2, characterized in that: There are three adjusting screw holes, and the center lines of the three adjusting screw holes are in the shape of a triangle.
4. The optical thermometer detection device according to claim 1, characterized in that: The gas source continuously feeds 7 L / min of process gas.
5. The optical thermometer detection device according to claim 1, characterized in that: It also includes a pressure sensor arranged in the heating furnace (1).
6. The optical thermometer detection device according to claim 1, characterized in that: An air pressure sensor is provided between the air inlet and the process gas pipeline.
7. The optical thermometer detection device according to claim 1, characterized in that: An observation mirror is provided between the transition flange (3) and the flange connection port (2).