A temperature sensor aid for high viscosity media

Abstract

The application provides a temperature sensor auxiliary device for high-viscosity medium, which comprises two layers of protective structures arranged in sequence on the outside of a temperature sensor. A second mounting seat in the inner layer is arranged on the temperature sensor, and the second mounting seat is provided with a detection end of the temperature sensor, which can be inserted into the lumen of a measured pipe and contact the high-viscosity medium, so that the temperature sensor is prevented from directly contacting the medium. A first mounting seat in the outer layer penetrates the measured pipe and is arranged on the outside of the second end of the second mounting seat. The double-layer protective structure is used to heat insulate the temperature sensor, so that the interference of the heat medium temperature in the measured pipe is reduced. In the case of avoiding the direct contact between the high-viscosity medium and the temperature sensor, the temperature sensor can be replaced at any time when the temperature sensor fails. In addition, the first mounting seat and the measured pipe are welded, so that the leakage is effectively prevented.

Description

Technical Field

[0001] This invention belongs to the field of temperature sensor cooling technology, and specifically relates to an auxiliary device for temperature sensors used in high-viscosity media. Background Technology

[0002] The temperature of the spinning solution is crucial to the spinning process because it directly affects the quality and performance of the final product. Therefore, accurately monitoring the temperature of the spinning solution is essential for ensuring product quality and optimizing the production process.

[0003] In existing technologies, melt temperature sensors are typically used for temperature detection of high-viscosity media or high-viscosity media with heating. Melt temperature sensors are devices specifically designed for measuring and controlling the temperature of high-temperature melts. However, as the production scale of high-viscosity media expands, the total number of temperature sensors required is increasing exponentially, and the requirements for temperature measurement are also becoming more stringent. Existing melt temperature sensors are expensive, and the machining precision requirements for the sealing surfaces on which they are mounted are extremely high; otherwise, there is a risk of leakage.

[0004] Even when using other relatively inexpensive temperature sensors, the current installation methods for temperature sensors and sealing surfaces mean that the temperature probe is typically installed flush with the inner wall of the pipe or protruding only about 10mm. The front end of the temperature sensor contacts the high-viscosity medium being measured, while the rear end relies on a heating medium for heat tracing. Due to significant temperature fluctuations in the heating medium, this temperature measurement method cannot accurately reflect the temperature of the medium being measured and is easily affected by the temperature of the heating medium inside the jacketed pipe, making it difficult to accurately reflect the actual temperature of the medium. Especially in high-temperature or rapidly heating scenarios, the heat from the heating medium can be transferred backward through the metal housing of the temperature sensor probe, causing the measured value to be too high or lagging. Furthermore, when the temperature sensor malfunctions, spare parts cannot be replaced online. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary device for a temperature sensor used in high-viscosity media, which allows the temperature sensor to be replaced at any time when it malfunctions.

[0006] To solve the above-mentioned technical problems, the present invention provides a temperature sensor auxiliary device for high viscosity media, including a first mounting base and a second mounting base;

[0007] The second mounting base has a cavity for mounting a temperature sensor along its length. The first end of the second mounting base has a mounting port that communicates with the cavity. The second end of the second mounting base is closed and is used to extend into the cavity of the tube to be tested and contact the high viscosity medium.

[0008] The first mounting base is a sleeve structure with openings at both ends. The first mounting base is sleeved on the outer side of the second end of the second mounting base. The first mounting base passes through the tube to be tested from the outside and is welded to the tube to be tested.

[0009] Optionally, in the above-described temperature sensor auxiliary device for high-viscosity media, the cross-section of the second end of the second mounting base is rhomboid.

[0010] Optionally, in the above-mentioned temperature sensor auxiliary device for high-viscosity media, the two acute angles of the rhombus are arranged opposite each other along the axial direction of the tube to be tested.

[0011] Optionally, in the above-described temperature sensor auxiliary device for high-viscosity media, the second mounting base and the first mounting base are detachably connected.

[0012] Optionally, in the above-described temperature sensor auxiliary device for high-viscosity media, at least one sealing ring is provided between the second mounting base and the first mounting base.

[0013] Optionally, in the above-mentioned temperature sensor auxiliary device for high viscosity media, the outer diameter of the first end of the second mounting base is larger than the outer diameter of the second end, and the inner wall of the first mounting base is provided with a boss, which abuts against the end face of the first end of the second mounting base.

[0014] Optionally, in the above-mentioned temperature sensor auxiliary device for high viscosity media, the tube to be tested is a jacketed tube, the jacketed tube includes an outer tube and an inner tube, and a heating medium layer is provided between the outer tube and the inner tube;

[0015] The first mounting base consists of an outer tube and an inner tube that pass through the jacketed tube, with one end of the first mounting base extending into the inner tube flush with the inner wall of the inner tube.

[0016] Optionally, in the above-described temperature sensor auxiliary device for high-viscosity media, the outer diameter of the first mounting base located in the inner tube portion is smaller than the rest of the first mounting base.

[0017] Optionally, in the above-described temperature sensor auxiliary device for high-viscosity media, the first mounting base, the second mounting base, and the receiving cavity are arranged coaxially.

[0018] Optionally, in the above-described auxiliary device for a temperature sensor used for high-viscosity media, the wall thickness of the second mounting base at the probe of the temperature sensor is less than the wall thickness at other locations of the second mounting base.

[0019] This invention provides an auxiliary device for a temperature sensor used in high-viscosity media, the advantages of which are:

[0020] By sequentially installing two protective structures on the outside of the temperature sensor, the inner second mounting base covers the temperature sensor, and the side of the second mounting base with the detection end of the temperature sensor can be inserted into the cavity of the tube under test and contact the high-viscosity medium, thus avoiding direct contact between the temperature sensor and the medium. The outer first mounting base penetrates the tube under test and is sleeved on the outside of the second end of the second mounting base. This double-layer protective structure insulates the temperature sensor from heat, reducing interference from the temperature of the heat transfer medium inside the tube under test. While avoiding direct contact between the high-viscosity medium and the temperature sensor, it also ensures that the temperature sensor can be replaced at any time if it malfunctions. Furthermore, by welding the first mounting base to the tube under test, the sealing performance is not affected by the machining precision at the connection between the temperature sensor auxiliary device and the tube under test, effectively preventing leakage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a temperature sensor auxiliary device for high viscosity media connected to a pipeline, provided by an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of a temperature sensor auxiliary device for high-viscosity media provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the first mounting base provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the second mounting base provided in an embodiment of the present invention;

[0026] Figure 5 A bottom view of the front end of the second mounting base provided in an embodiment of the present invention;

[0027] Figure 6 A bottom view of the second mounting base provided in an embodiment of the present invention.

[0028] In the image above:

[0029] 100 - Auxiliary device for temperature sensors used in high-viscosity media;

[0030] 110 - First mounting bracket;

[0031] 121 - First end of the second mounting base;

[0032] 122 - The second end of the second mounting bracket;

[0033] 130 - Sealing ring;

[0034] 210 - Outer tube;

[0035] 220 - Heating medium layer;

[0036] 230-Inner tube. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The core of this invention is to provide an auxiliary device for a temperature sensor used in high-viscosity media, which allows the temperature sensor to be replaced at any time when it malfunctions.

[0039] To enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] For details, please refer to Figures 1-2 The present invention provides a temperature sensor auxiliary device 100 for high viscosity media, including a first mounting base 110 and a second mounting base.

[0041] The second mounting base has a cavity along its length for mounting a temperature sensor. The "length direction" of the second mounting base is the direction from the outside towards the inside of the tube to be tested. This direction can have a certain angle with the axial direction of the tube to be tested. In particular, this direction can be perpendicular to the axis of the tube to be tested. The first end 121 of the second mounting base (the end exposed on the outside of the tube to be tested) has a mounting port communicating with the cavity. The second end 122 of the second mounting base (the end that enters the inside of the tube to be tested) is closed and used to extend into the cavity of the tube to be tested and contact the high-viscosity medium.

[0042] It should be noted that the tube under test contains a high-viscosity medium for temperature measurement, which serves as the heating medium layer 220. It should also be noted that because the high-viscosity medium inside the tube under test has a high pressure, the second end 122 of the second mounting base is sealed to protect the sensor from external environmental influences and prevent medium leakage. Simultaneously, the temperature of the high-viscosity medium can be transferred to the temperature sensor through the end face of the second end 122, maintaining the stability and accuracy of the temperature sensor.

[0043] The temperature sensor enters the receiving cavity through the mounting port of the second mounting base, and the detection end of the temperature sensor is located at the second end 122 of the receiving cavity near the second mounting base.

[0044] The first mounting base 110 is a sleeve structure with openings at both ends. The first mounting base 110 is sleeved on the outside of the second end 122 of the second mounting base. The first mounting base 110 passes through the tube to be tested from the outside. The first mounting base 110 is welded to the tube to be tested. The sealing performance between the first mounting base 110 and the tube to be tested no longer depends on high-precision machining.

[0045] This solution provides a temperature sensor auxiliary device 100 for high-viscosity media. It employs a two-layer protective structure around the temperature sensor. The inner layer, a second mounting base, covers the temperature sensor, and the side of the second mounting base with the sensor's detection end can be inserted into the cavity of the tube under test and contact the high-viscosity medium, thus preventing direct contact between the temperature sensor and the medium. The outer layer, a first mounting base, penetrates the tube under test and is fitted over the second end 122 of the second mounting base. This double-layer protective structure insulates the temperature sensor from heat, reducing interference from the temperature of the heat transfer medium inside the tube. While preventing direct contact between the high-viscosity medium and the temperature sensor, it also ensures that the temperature sensor can be replaced easily if it malfunctions.

[0046] Furthermore, by welding the first mounting base to the tube under test, the sealing performance is avoided due to the low machining accuracy at the connection between the temperature sensor auxiliary device and the tube under test, which can effectively prevent leakage of high-viscosity media and heating media.

[0047] Experiments have proven that the temperature measurement method described above provides results closer to the actual temperature, virtually eliminating interference from the heating medium. It can more directly reflect the temperature of the high-viscosity medium inside the test tube. Furthermore, because it employs a non-direct contact measurement method, the temperature sensor is not directly exposed to the heating medium environment, avoiding the need for imported melt temperature sensors. Using a domestically renowned brand temperature sensor, custom-made to the design dimensions, it can be installed in the second mounting bracket for detection. This reduces the requirements for the type of medium being measured, thereby increasing domestic production and significantly reducing project and operating costs. When the temperature sensor probe fails, it can be replaced at any time, avoiding the downtime required for replacing melt temperature sensors, increasing uptime and reducing waste wire.

[0048] This temperature measurement method can be applied to the production and manufacturing of spinning solutions, and can also be extended to the upstream section of spinning machines. It can even be applied to the temperature measurement of other non-Newtonian fluids or high-viscosity fluids, such as in the polyester industry.

[0049] In a specific embodiment, the cross-section of the second end 122 of the second mounting base is rhomboid. For example... Figure 5 and Figure 6As shown, the portion of the second mounting base that extends into the inner cavity of the tube under test adopts a diamond-shaped design, which can reduce the impact on the flow of high-viscosity media.

[0050] Specifically, the two acute angles α1 of the rhombus are positioned opposite each other along the axial direction of the tube under test, with the acute angles ranging from 20° to 80°, such as 20°, 30°, 50°, 66°, 70°, and 80°. The two acute angles of the rhombus follow the liquid flow direction of the high-viscosity medium, thereby reducing the influence of the second mounting base extending into the fluid on the fluid. In this way, the temperature sensor probe (such as platinum-thermal Pt100) is fully inserted into the fluid and kept away from the heat medium of the tube under test, ensuring the accuracy of temperature measurement from the design.

[0051] To facilitate installation and replacement, the second mounting base and the first mounting base 110 are detachably connected. The first mounting base 110 can be first installed on the tube to be tested and welded to it, and then the second mounting base can be inserted into the first mounting base 110, improving installation flexibility. Furthermore, to improve the sealing between the second mounting base and the first mounting base 110, at least one sealing ring 130 is provided between them to prevent high-viscosity media from flowing out from the gap between the second mounting base and the first mounting base 110.

[0052] When multiple temperature sensors are arranged along the length of the tube under test, multiple first mounting bases 110 can be welded to the tube under test, then second mounting bases can be installed, and finally the temperature sensors can be inserted. When a temperature sensor fails, a new temperature sensor can be replaced at any time without affecting the entire production process.

[0053] Of course, the second mounting base and the first mounting base 110 can also be connected by welding or be a one-piece molded structure, so that the second mounting base does not need to be installed twice, and the sealing performance of the connection between the second mounting base and the first mounting base 110 does not need to be considered.

[0054] In a specific embodiment, such as Figure 4 The second mounting base shown has a first end 121 with an outer diameter larger than the second end 122, forming a stepped surface between the first and second ends 121. The inner wall of the first mounting base 110 has a boss that abuts against the stepped surface of the first end of the second mounting base. This stepped surface and boss design also facilitates the axial positioning of the second mounting base within the first mounting base 110. Specifically, a sealing ring 130 can be positioned at this stepped surface.

[0055] In one specific embodiment, the tube to be tested is a jacketed tube, which includes an outer tube 210 and an inner tube 230. The outer tube 210 is sleeved on the outside of the inner tube 230, and there is a certain space between the outer tube 210 and the inner tube 230 for the flow of heating medium for heat tracing, which is the heating medium layer 220. The first mounting seat 110 is formed by the outer tube 210 and the inner tube 230 penetrating the jacketed tube from the outside. The end face of the first mounting seat 110 extending into the inner tube 230 is flush with the inner wall of the inner tube 230, which can ensure that only the second end 122 of the second mounting seat is in full contact with the high viscosity medium, while the temperature of the first mounting seat 110 is not significantly affected.

[0056] Furthermore, the outer diameter of the portion of the first mounting base 110 located in the inner tube 230 is smaller than that of the rest of the first mounting base 110, thereby forming a stepped surface between the heating medium layer 220 and the inner tube 230, which facilitates the installation and positioning of the first mounting base 110 on the inner tube 230.

[0057] like Figure 2 As shown, the first mounting base 110, the second mounting base, and the receiving cavity are arranged coaxially, and the temperature sensor is compactly arranged with the first mounting base 110 and the second mounting base, which facilitates installation and improves the reliability of the connection.

[0058] To improve the accuracy of detection, the wall thickness of the second mounting base at the temperature sensor probe is less than the wall thickness at other locations on the second mounting base. The probe is only covered by the second end of the second mounting base, and the wall thickness at this location is relatively thin, which can accurately detect the temperature of high-viscosity media.

[0059] The portion of the temperature sensor furthest from the probe is successively covered by the second mounting base and the first mounting base 110. The wall thickness at this location is relatively thick, which can prevent the heating medium layer 220 from affecting the temperature sensor, thereby improving the accuracy of the measurement.

[0060] In the description of this application, it should be understood that descriptions involving orientation, such as the orientation or positional relationship of the test tube (inside or outside), are based on the appendix. Figure 1 and Figure 2 The orientation or positional relationship of the tube under test shown, and the orientation or positional relationship of the inner and outer indicators of the first and second mounting bases, are based on the attached... Figure 5 and Figure 6 The orientation or positional relationship of the first and second mounting bases shown are for the convenience of describing this application and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0061] In the description of this application, "multiple" means two or more. If "first" or "second" is mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0062] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An auxiliary device for a temperature sensor used in high-viscosity media, characterized in that, Includes a first mounting base (110) and a second mounting base; The second mounting base has a cavity for mounting a temperature sensor along its length. The first end (121) of the second mounting base has a mounting port that communicates with the cavity. The second end (122) of the second mounting base is closed and is used to extend into the cavity of the tube to be tested and contact the high viscosity medium. The first mounting base (110) is a sleeve structure with openings at both ends. The first mounting base (110) is sleeved on the outside of the second end (122) of the second mounting base. The first mounting base (110) passes through the tube to be tested from the outside and is welded to the tube to be tested.

2. The temperature sensor auxiliary device for high-viscosity media according to claim 1, characterized in that, The cross-section of the second end (122) of the second mounting base is rhomboid.

3. The temperature sensor auxiliary device for high viscosity media according to claim 2, characterized in that, The two acute angles of the rhombus, which are arranged opposite each other, are set along the axial direction of the tube to be tested.

4. The temperature sensor auxiliary device for high-viscosity media according to claim 1, characterized in that, The second mounting base and the first mounting base (110) are detachably connected.

5. The temperature sensor auxiliary device for high-viscosity media according to claim 4, characterized in that, At least one sealing ring (130) is provided between the second mounting base and the first mounting base (110).

6. The temperature sensor auxiliary device for high-viscosity media according to claim 1, characterized in that, The outer diameter of the first end of the second mounting base is larger than the outer diameter of the second end. The inner wall of the first mounting base (110) is provided with a boss, which abuts against the end face of the first end of the second mounting base.

7. The temperature sensor auxiliary device for high-viscosity media according to claim 1, characterized in that, The tube to be tested is a jacketed tube, which includes an outer tube (210) and an inner tube (230), and a heating medium layer (220) is provided between the outer tube (210) and the inner tube (230). The first mounting base (110) consists of an outer tube (210) and an inner tube (230) that pass through the jacket tube. The end face of the first mounting base (110) extending into the inner tube (230) is flush with the inner wall of the inner tube (230).

8. The temperature sensor auxiliary device for high viscosity media according to claim 7, characterized in that, The outer diameter of the portion of the first mounting base (110) located in the inner tube (230) is smaller than that of the rest of the first mounting base (110).

9. The temperature sensor auxiliary device for high-viscosity media according to claim 1, characterized in that, The first mounting base (110), the second mounting base, and the receiving cavity are arranged coaxially.

10. The temperature sensor auxiliary device for high-viscosity media according to claim 1, characterized in that, The wall thickness of the second mounting base at the probe of the temperature sensor is less than the wall thickness at other locations of the second mounting base.

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