Expansion joint temperature measuring device
By using a hoop and chute structure to fix the temperature measurement device on the expansion joint, and using a flexible insulation layer to set a temperature measurement unit at the trough, the problem of temperature measurement between the peak and trough of the expansion joint is solved, and accurate temperature measurement is achieved. and real-time monitoring.
Patent Information
- Application Number
- CN202421115003.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The prior art is difficult to achieve effective temperature measurement in a special structure where the outer surface of the expansion joint changes, especially in temperature measurements between peaks and troughs.
A hoop structure is used to fix the temperature measurement device on the expansion joint, and the temperature measurement unit of the flexible insulation layer is set at the trough of the expansion joint. The mounting plate of the chute structure and the elastic hoop are used to measure the temperature between the wave peak and the trough. real-time measurement and monitoring.
It achieves accurate measurement and monitoring of the temperature between the peak and trough of the expansion joint, can adapt to the deformation of the expansion joint in the axial direction, ensures that the temperature measurement unit always fits the surface, and provides real-time temperature data.
Smart Images
Figure CN222379218U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of thermocouple and thermal resistor temperature measurement, and more specifically relates to a device used for temperature measurement of expansion joints. Background Art
[0002] Thermocouples are commonly used temperature testing instruments, often used in various occasions or reaction devices that require temperature control, such as chemical reactors, sintering furnaces, etc. In most cases, thermocouples are used in an inserted manner, that is, the thermocouple as a whole or the thermocouple temperature measuring end or the temperature measuring core is installed in chemical reactors, sintering furnaces and other equipment to monitor the temperature of the temperature-measured part. However, in some special fields or some special locations, it is required to monitor the temperature of the surface (or outer surface). In this case, the temperature sensor (ie, thermocouple) is required to be set on the surface to be measured to achieve temperature measurement. However, for the measurement of outer surface temperature, how to install it firmly and accurately test the temperature is a major problem facing the industry.
[0003] The prior art "clamp-type surface temperature sensor" (application number 2015200885522, application date February 9, 2015, authorization announcement date June 3, 2015) proposes a clamp-type structure for measuring the temperature of the outer surface of the pipeline, but this structure is a thermocouple with a relatively fixed temperature measurement position, and can only achieve single-point measurement on the circumference, which cannot meet the increasingly diverse requirements of customers in actual use. Our company's R&D team has been committed to the temperature measurement thermocouples on the inner and outer surfaces of customers' pipelines, and launched the "slide rail clamp-type thermocouple" (application number 202220088540X, application date January 13, 2022, authorization announcement date October 28, 2022), forming a sliding track between different clamps, and the sliding base can slide freely along the sliding track, so that the temperature measurement component can be adjusted in different measurement processes by adjusting the position of the temperature measurement component on the clamp, so that it can achieve the purpose of measuring the temperature of different positions on the surface of the pipeline and equipment in different measurement processes. At the same time, for the tube-in-tube structure composed of multiple pipes (the distance between the pipes is small), or the internal pipes in the casing structure, due to the lack of installation space in engineering practice, our company's R&D team has developed a "pipeline outer surface temperature measurement mounting bracket and a thermocouple using this bracket" (application number is 202410189592X, and the application date is February 20, 2024). A smaller mounting bracket is used to achieve temperature measurement and / or monitoring of the outer surface of the pipe, which is convenient to use.
[0004] Regardless of which of the above-mentioned measuring surfaces the thermocouples are used, they are all aimed at the outside of the pipe. This outer surface remains basically unchanged during use and generally does not have defects such as large pits. However, for the special structure of the expansion joint, whose outer surface will change, there is a lack of temperature measuring devices that meet the requirements of engineering practice. Utility Model Content
[0005] The utility model aims to overcome the deficiencies of the prior art and provide an expansion joint temperature measuring device.
[0006] The technical purpose of the utility model is achieved through the following technical solutions.
[0007] The expansion joint temperature measuring device comprises a clamp, a mounting plate and a temperature measuring unit, wherein:
[0008] The hoop is fixed to the wave crest of the expansion joint, and a mounting plate is arranged between the hoop; the mounting plate includes a center plate and a side plate, the center plate and the side plates on both sides thereof are connected through a slide groove, and the side plates and the hoop are connected through the slide groove;
[0009] The temperature measuring unit of the temperature measuring device extends out of the protection tube and passes through the through hole of the center plate; the temperature measuring unit is located in the trough of adjacent wave crests in the expansion joint, and a heat-insulating material is arranged between the temperature measuring unit and the adjacent wave crests; the heat-insulating material is elastic and can expand or compress as the distance between the wave crests and the wave troughs in the expansion joint changes, and always adheres to the surface of the temperature measuring unit and the wave crests and the wave troughs during this process, so that the temperature measuring unit can measure and monitor the temperature between the wave crests and the wave troughs in real time;
[0010] The arranged mounting plate has a sliding groove structure, and the clamp is elastic.
[0011] In the above technical solution, there are two clamps.
[0012] In the above technical solution, a heat-insulating material is also arranged between the temperature measuring unit and the trough (ie, the bottom surface of the trough).
[0013] In the above technical solution, a junction box is arranged at the top of the entire expansion joint temperature measuring device, and the lower end of the junction box is connected to the protective tube.
[0014] In the above technical solution, the temperature measuring unit is an armored thermocouple or a thermal resistor.
[0015] In the above technical solution, the thermal insulation material is thermal insulation cotton.
[0016] The utility model discloses an expansion joint temperature measuring device, which adopts a clamp structure to fix the whole device on the expansion joint structure to be measured, and sets a temperature measuring unit with a flexible insulation layer on the outside at the trough of the expansion joint. The technical solution of the utility model is adopted to fix the whole temperature measuring device by the clamp structure, and ensure the temperature measurement of the trough by the temperature measuring unit by the flexible insulation layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram (1) of the utility model.
[0018] Figure 2 It is a structural schematic diagram (2) of the utility model.
[0019] Among them, 1 is a junction box, 2 is a protective tube, 3 is an expansion joint, 3-1 is a trough, 3-2 is a crest, 4 is a clamp, 5 is a mounting plate, 5-1 is a center plate, 5-2 is a slide groove, 5-3 is a side plate, 6 is a temperature measuring unit, and 7 is a thermal insulation material.
[0020] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION
[0021] The technical solution of the present utility model is further described below in conjunction with specific embodiments.
[0022] like Figure 1 As shown, there are troughs and peaks on the outer surface of the expansion joint 3. The thermocouples listed in the background technology for measuring the outer surface of the pipeline can only be used for positions on the outer surface of the expansion joint where there are no peaks and troughs, and cannot measure the temperature between the "peaks and troughs".
[0023] The temperature measurement between the wave crest and the wave trough can be realized by using the temperature measuring device of the expansion joint of this embodiment. The clamp is fixed to the wave crest of the expansion joint, and a mounting plate is arranged between the clamp. The temperature measuring unit of the temperature measuring device extends out of the protective tube and passes through the through hole of the mounting plate; the temperature measuring unit is located in the wave trough of adjacent wave crests in the expansion joint, and a heat-insulating material is arranged between the temperature measuring unit and the adjacent wave crests, preferably in the wave trough of adjacent wave crests, and then the temperature measuring unit is arranged in the heat-insulating material, that is, a heat-insulating material is arranged between the temperature measuring unit and the adjacent wave crests, and a heat-insulating material is arranged between the temperature measuring unit and the wave trough.
[0024] A junction box is set at the top of the entire expansion joint temperature measuring device, and the lower end of the junction box is connected to the protection tube. This part of the structure can adopt the content of the background technology. The temperature measuring unit is an armored thermocouple or a thermal resistor. Figure 1 From the perspective of the protection tube, the internal temperature measuring unit and its structure are protected. The signal collected by the temperature measuring unit is transmitted from bottom to top to the top of the temperature measuring unit. The signal line is set in the junction box, and then the data line is connected to the junction box to transmit the collected signal.
[0025] There are two clamps, which are fixed to the wave crest of the expansion joint and have a certain elasticity. If the expansion joint expands in the radial direction, the clamp can still hold the expansion joint tightly to prevent it from slipping or breaking. Since the expansion joint has deformation along the length direction (i.e. axial direction), after confirming the temperature measurement position, the temperature measurement unit is set in the wave trough where the temperature measurement needs to be performed. According to the deformation situation, the structure of the installation plate is selected as a slide structure. Figure 2As shown, the mounting plate includes a center plate 5-1 (with a through hole for the temperature measuring unit to pass through), a side plate 5-3, the center plate and the side plates on both sides thereof are connected through a slide groove 5-2, and the side plate 5-3 and the clamp 4 are connected through the slide groove 5-2. When the expansion joint undergoes axial deformation, the side plates on both sides of the center plate slide through the slide groove structure to achieve expansion and contraction along the deformation direction of the expansion joint, and the temperature measuring unit for preset temperature measurement remains stationary.
[0026] The thermal insulation material has a certain elasticity, such as thermal insulation cotton, which can expand or compress as the distance between the peak and the trough changes, and always fits the temperature measuring unit and the peak and the trough during this process. In this way, the temperature measuring unit can measure and monitor the temperature between the peak and the trough in real time.
[0027] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of an element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. Moreover, relational terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or imply that there is any such actual relationship or order between these components.
[0028] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.
Claims
1. Expansion joint temperature measuring device, characterized in that: It includes a clamp, a mounting plate and a temperature measuring unit, wherein: The hoop is fixed to the wave crest of the expansion joint, and a mounting plate is arranged between the hoop; the mounting plate includes a center plate and a side plate, the center plate and the side plates on both sides thereof are connected through a slide groove, and the side plates and the hoop are connected through the slide groove; The temperature measuring unit of the temperature measuring device extends out of the protection tube and passes through the through hole of the center plate; the temperature measuring unit is located in the trough of adjacent wave crests in the expansion joint, and a heat-insulating material is arranged between the temperature measuring unit and the adjacent wave crests; the heat-insulating material is elastic and can expand or compress as the distance between the wave crests and the wave troughs in the expansion joint changes, and in this process always adheres to the surface of the temperature measuring unit and the wave crests and the wave troughs; the clamp is elastic.
2. The expansion joint temperature measuring device according to claim 1, characterized in that: Insulation material is also provided between the temperature measuring unit and the trough.
3. The expansion joint temperature measuring device according to claim 1 or 2, characterized in that: The thermal insulation material is thermal insulation cotton.
4. The expansion joint temperature measuring device according to claim 1 or 2, characterized in that: The temperature measuring unit is an armored thermocouple or a thermal resistor.
5. The expansion joint temperature measuring device according to claim 3, characterized in that: The temperature measuring unit is an armored thermocouple or a thermal resistor.
6. The expansion joint temperature measuring device according to claim 1 or 2, characterized in that: There are two clamps.
7. The expansion joint temperature measuring device according to claim 3, characterized in that: The number of clamps is two.
8. The expansion joint temperature measuring device according to claim 4, characterized in that: There are two clamps.
9. The expansion joint temperature measuring device according to claim 1 or 2, characterized in that: A junction box is arranged at the top of the entire expansion joint temperature measuring device, and the lower end of the junction box is connected to the protective tube.
10. The expansion joint temperature measuring device according to claim 5 or 7, characterized in that: A junction box is arranged at the top of the entire expansion joint temperature measuring device, and the lower end of the junction box is connected to the protective tube.