A surface temperature measuring device

Abstract

The utility model belongs to temperature measurement technical field discloses a kind of surface temperature measuring device, including supporting assembly and the device main body of conduit sleeve setting on temperature sensing element;Conduit includes the first hard pipe section, flexible tube section and second hard pipe section connected in proper order;First hard pipe section is located at the hot end of temperature sensing element, and is installed on measured medium;Second hard pipe section is located at the cold end of temperature sensing element, and extend along the direction of being away from measured medium;Supporting assembly includes support installed on second hard pipe section and pedestal fixed on measured medium;Support can be installed on pedestal along the axial sliding of first hard pipe section, and first fastener for locking relative position is equipped between the two;In the surface temperature measuring device of the utility model, through the collaborative cooperation of flexible tube section, support, pedestal structure, reduce the installation difficulty of overall, improve the installation and subsequent maintenance efficiency of surface temperature measuring device.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology, and more specifically, to a surface temperature measuring device. Background Technology

[0002] The principle of thermocouple temperature measurement is to use two metal conductors of different materials to form a closed circuit. When there is a temperature difference between the two ends of the conductor, a current will be generated in the circuit, and the temperature data can be calculated by the current. At the same time, the principle of resistance temperature measurement is to use the resistance effect of metals and calculate the temperature data by measuring the resistance. Due to their good temperature measurement range and durability, both are often used for temperature measurement in industrial environments.

[0003] A surface thermocouple is disclosed in the prior art, in which the hot end of the thermocouple body is welded to the furnace tube, and the cold end is fixed to the furnace tube by a bracket. The bracket has clamp structures at both ends, which can conveniently support and fix the surface thermocouple. However, due to the thermal expansion and contraction of the furnace tube and possible equipment vibration, the clamp bracket can only provide vertical support and lacks effective circumferential restraint. Its circumferential restraint relies entirely on the welded structure of the hot end for limiting. If the welded structure of the hot end cracks under long-term high temperature, it will lead to the risk of the surface thermocouple loosening. Although those skilled in the art can easily think of welding the bracket to the furnace tube when faced with this problem, once the positional deviation occurs during the welding process of the bracket, the conduit in the thermocouple body is a rigid structure, and it is difficult to adapt it by adjusting the conduit of the thermocouple body later. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a surface temperature measuring device that allows for fine adjustment of the installation position.

[0005] The objective of this utility model is achieved through the following technical solution: A surface temperature measuring device includes a device body and a support assembly. The device body includes a temperature sensing element and a conduit sleeved on the outside of the temperature sensing element. The catheter comprises a first rigid tube segment, a flexible tube segment, and a second rigid tube segment connected in sequence. The first rigid tube section is located at the hot end of the temperature sensing element and is installed on the medium being measured; The second rigid tube section is located at the cold end of the temperature sensing element and extends in a direction away from the measured medium; The support assembly includes a bracket mounted on the second rigid pipe section and a support fixed to the measured medium; The bracket can be slidably mounted on the support along the axial direction of the first rigid tube section, and a first fastener is provided between the two for locking their relative positions.

[0006] In this surface temperature measuring device, the hot end of the main body is installed on the medium being measured, while the cold end of the main body is installed on the medium being measured via a bracket and support structure. Compared to fixing the cold end of the main body to the furnace tube with clamps, the support is directly fixed on the medium being measured, which can effectively improve the reliability of the installation of the main body.

[0007] Meanwhile, in order to accommodate the deviation of the support installation position, the bracket can be slidably installed on the support along the axial direction of the first rigid pipe section, ensuring the connectability between the bracket and the support. At the same time, the middle part of the conduit is set as a flexible pipe section that can be bent to adapt to the change of the support position. This structure greatly reduces the installation difficulty of the surface temperature measuring device on the measured medium and improves the efficiency of installation and subsequent maintenance.

[0008] Furthermore, the first rigid pipe section includes a pipe section body and a reversing section located at the end of the pipe section body, and the sliding direction of the support is parallel to the axial direction of the pipe section body; the reversing section extends in a direction away from the measured medium, and the flexible pipe section is connected to the reversing section.

[0009] With the above arrangement, the reversing section can serve as the basis for the extension direction of the rear flexible pipe section and the second rigid pipe section, so that the flexible pipe section can extend in a direction away from the measured medium without bending.

[0010] Furthermore, the support is equipped with a sleeve, the axis of which is parallel to the axis of the reversing section. The second rigid tube section is inserted inside the sleeve, which facilitates the installation of the conduit on the support.

[0011] Furthermore, the bracket is provided with an installation ramp parallel to the axis of the reversing section, and the sleeve is installed on the installation ramp with the axis of the sleeve parallel to the installation ramp, so as to make the axis of the sleeve parallel to the axis of the reversing section.

[0012] Furthermore, the support includes two sets of vertical plates with parallel surfaces, and the lower ends of the two sets of vertical plates are slidably engaged with the support. Both sets of uprights have sides located within the installation ramp, and the conduit is welded to the sides of both sets of uprights.

[0013] With the above arrangement, compared to setting a single mounting ramp on the bracket, the two sets of sides can increase the number of contact points with the sleeve and the overall contact area, which facilitates the installation, positioning and welding of the sleeve.

[0014] Furthermore, the support includes a set of clamping plates, the lower ends of the two sets of upright plates clamping the clamping plates; the first fastener includes a threaded rod that passes through both the clamping plates and the two sets of upright plates, and a nut mounted on the threaded rod and abutting against the outer wall of the upright plate; Among them, the through holes on the two sets of vertical plates for inserting screws are elongated holes, and the extension direction of the elongated holes is parallel to the axial direction of the first rigid pipe section.

[0015] With the above arrangement, the lower ends of the two sets of upright plates can be clamped between the two sets of clamping plates by their own elasticity, and the upright plates are provided with long holes for threading screws, which facilitates the adjustment and locking of the position of the bracket on the support.

[0016] Furthermore, the first rigid pipe section is welded to the medium being measured; or, the first rigid pipe section can also be detachably connected to the medium being measured via a connector.

[0017] For example, the connector is fixed to the medium being measured; the connector has an insertion hole, in which a first rigid tube section is partially inserted; the connector is also threaded with a second fastener, which is locked to the outer wall of the insertion portion of the first rigid tube section.

[0018] Furthermore, the inlet of the socket is funnel-shaped, wider at the outside and narrower at the inside, making it easier to insert the conduit into the socket. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the surface temperature measuring device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the support structure in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the support structure in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the connector structure in an embodiment of the present utility model; The attached diagram lists the components represented by each number as follows: 1. Conduit; 10. First rigid pipe section; 100. Pipe section body; 101. Reversing section; 11. Flexible pipe section; 12. Second rigid pipe section; 2. Support assembly; 20. Bracket; 200. Vertical plate; 201. Side; 202. Long slot; 21. Pipe sleeve; 22. Support; 220. Clamping plate; 221. First fastener; 3. Junction box; 4. Connector; 40. Socket; 400. Inlet; 41. Second fastener; 5. Measured medium. Detailed Implementation

[0020] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] Reference Figure 1 This embodiment provides a surface temperature measuring device, the overall structure of which mainly includes a device body and a support component 2 for fixing the device body to the medium being measured 5.

[0022] Consistent with existing technology, the main body of the device consists of an internal temperature sensing element (not shown) and a conduit 1 sleeved outside the temperature sensing element. The temperature sensing element is connected to a junction box 3, which is installed at one end of the conduit 1.

[0023] In this embodiment, the conduit 1 is the skeleton of the entire device, and its structure is divided into three sections: the first rigid tube section 10 located in the front section, the second rigid tube section 12 located in the rear section, and the flexible tube section 11 connecting the first rigid tube section 10 and the second rigid tube section 12.

[0024] The first rigid pipe section 10 and the second rigid pipe section 12 are both rigid pipes, while the flexible pipe section 11 is a bendable corrugated pipe or hose structure. The first rigid pipe section 10 and the flexible pipe section 11, as well as the second rigid pipe section 12 and the flexible pipe section 11, can be connected by various methods such as welding, snap-fit ​​or threaded connection, without any restrictions.

[0025] In terms of position, the first rigid tube section 10 is located at the hot end of the temperature sensing element, which is directly mounted on the surface of the measured medium 5; the second rigid tube section 12 is located at the cold end of the temperature sensing element, that is, at the end connected to the junction box 3, and the second rigid tube section 12 extends outward in a direction away from the measured medium 5.

[0026] The support component 2 is used to support the main body of the device, the main body of which includes a bracket 20 and a support 22.

[0027] The support 20 is installed on the second rigid tube section 12 to support the cold end of the conduit 1; the support 22 is fixed to the outer wall of the medium being measured 5 by welding or integral molding.

[0028] In this embodiment, the bracket 20 and the support 22 are installed in a sliding fit manner. The bracket 20 can slide relative to the support 22 along the axial direction of the first rigid pipe section 10. Furthermore, a first fastener 221 is provided between the bracket 20 and the support 22 to lock the bracket 20 and the support 22 after they have been adjusted to their relative positions, so as to prevent them from moving relative to each other.

[0029] In some embodiments, the first rigid tube section 10 can be a straight tube structure, and the second rigid tube section 12 can be extended in a direction away from the measured medium 5 by bending the flexible tube section 11 installed at the end of the first rigid tube section 10.

[0030] In this embodiment, the first rigid pipe section 10 consists of two parts: a pipe section body 100 and a reversing section 101. The reversing section 101 is a structure formed by bending at the end of the pipe section body 100. The pipe section body 100 is a straight pipe structure, while the reversing section 101 extends in a direction away from the measured medium 5.

[0031] Furthermore, it is easy to understand that the reversing section 101 and the pipe section body 100 in this embodiment can also be manufactured separately and then assembled into the aforementioned first rigid pipe section 10 by means of welding, threaded connection or snap-fit.

[0032] In this embodiment, the sliding direction of the bracket 20 on the support 22 is set to remain parallel to the axial direction of the tube section body 100.

[0033] One end of the flexible tube 11 is connected to the upper end of the reversing section 101, and the other end of the flexible tube 11 is connected to the second rigid tube 12. Since the reversing section 101 has changed the direction of the conduit 1 from horizontal to away from the measured medium 5, the flexible tube 11 and the second rigid tube 12 can naturally extend in the vertical direction or a specific inclined direction without being bent significantly.

[0034] In this embodiment, in order to facilitate the installation between the conduit 1 and the support 20, a sleeve 21 is provided on the support 20, and the second rigid tube section 12 is composed of multiple tubular structures spliced ​​together (for example, a part of the tubular structure is formed on the junction box 3). Therefore, internal thread surfaces can be provided at both ends of the sleeve 21 to facilitate the threaded connection of the two aforementioned tubular structures to both ends of the sleeve 21.

[0035] In some embodiments, the sleeve 21 can also be a hollow cylindrical structure without an internal threaded surface. The axis of the sleeve 21 is parallel or even collinear with the axis of the reversing section 101, and the second rigid tube section 12 is directly inserted inside the sleeve 21.

[0036] The bracket 20 has an installation ramp that is approximately parallel to the axis of the reversing section 101. Therefore, after welding the cylindrical sleeve 21 to the installation ramp, the axis of the sleeve 21 can be kept parallel or even collinear with the axis of the reversing section 101.

[0037] In some embodiments, the bracket 20 can be a single integral component, and the first fastener 221 can be a screw mounted on the support 22, which abuts against the surface of the bracket 20 to lock the bracket 20.

[0038] In this embodiment, refer to Figure 2 The bracket 20 includes two sets of upright plates 200, the surfaces of the two sets of upright plates 200 are arranged parallel to each other, and the lower ends of the two sets of upright plates 200 are in sliding fit with the support 22; each set of upright plates 200 has a side edge 201 at its upper edge, the side edge 201 is located in the aforementioned mounting slope, and the sleeve 21 is welded and fixed to the side edge 201 on both sets of upright plates 200.

[0039] Since each of the two sets of side plates 201 forms a welding contact area with the outer wall of the sleeve 21, it also indirectly increases the welding area between the sleeve 21 and the bracket 20. Therefore, compared with setting the bracket 20 as a single component, the structure of the bracket 20 with two sets of upright plates 200 is more convenient for the accurate positioning of the sleeve 21 before welding and the stable connection after welding.

[0040] In this embodiment, refer to Figure 1 and Figure 3 The aforementioned support 22 may include a set of clamping plates 220, which are clamped between two sets of upright plates 200 and locked by a first fastener 221.

[0041] Furthermore, since the upper ends of the two sets of upright plates 200 are connected by the sleeve 21, and the lower ends of the two sets of upright plates 200 are not connected, the two sets of upright plates 200 rely on the aforementioned sleeve 21 to fix and maintain a parallel state; at the same time, the lower ends of the two sets of upright plates 200 can also generate a certain elastic deformation by their own elasticity, and can be clamped on both sides of the clamping plate 220 by their own elastic force, so that before the first fastener 221 is installed, the bracket 20 can be easily supported on the clamping plate 220.

[0042] The first fastener 221 is a screw and nut assembly, which includes a screw and a matching nut. The screw passes through both sets of upright plates 200 and the clamping plate 220 located between the two sets of upright plates 200. Both ends of the screw extend from the outer wall of the upright plate 200, and the nut is installed on the extended end of the screw and tightened so that the end face of the nut is in close contact with the outer wall of the upright plate 200, thereby locking the upright plate 200 and the clamping plate 220 into a whole.

[0043] Alternatively, in some embodiments, the support 22 includes two sets of oppositely arranged clamping plates 220, with two sets of upright plates 200 clamped between the two sets of clamping plates 220 and locked by a first fastener 221.

[0044] Reference Figure 2 In order to realize the sliding adjustment function of the bracket 20 relative to the support 22, the through holes for threading the screw on the two sets of upright plates 200 are designed as elongated holes 202, and the extension direction of the elongated holes 202 is set to be parallel to the axial direction of the first rigid pipe section 10. Therefore, when the nut is loosened, the screw can slide in the elongated hole 202, thereby driving the bracket 20 to move as a whole. After sliding to the appropriate position, the nut can be tightened again to complete the locking.

[0045] In some embodiments, the first rigid pipe section 10 and the measured medium 5 can be installed by welding, that is, the front end of the pipe section body 100 is directly welded to the surface of the measured medium 5.

[0046] In this embodiment, the first rigid pipe section 10 can also be detachably connected to the measured medium 5 through an independent connector 4, so as to facilitate disassembly and maintenance in the future.

[0047] Specifically, refer to Figure 1 and Figure 4 The connector 4 is pre-welded or integrally formed on the surface of the medium being tested 5. An insertion hole 40 is provided on the connector 4, and the front end of the tube body 100 of the first rigid tube section 10 is partially inserted into the insertion hole 40.

[0048] Meanwhile, in order to prevent the conduit 1 from coming out of the insertion hole 40, a threaded hole is provided on the side wall of the connector 4, and a second fastener 41 is installed thereon. After the second fastener 41 is screwed into the threaded hole, its end is locked on the outer wall of the insertion part of the first rigid tube section 10.

[0049] In addition, in some embodiments, in order to facilitate easy insertion of the end of the first rigid tube section 10 into the socket 40, the entrance 400 of the socket 40 is designed as a flared structure that is wider on the outside and narrower on the inside, and the flared conical surface can play a guiding role during the insertion process.

[0050] During the installation of the surface temperature measuring device in this embodiment, if the welding position of the support 22 on the measured medium 5 deviates, the operator can push the bracket 20 along the axial direction of the pipe section body 100, so that the bracket 20 can slide freely within the range of the elongated hole 202, thereby accurately adjusting the relative position of the bracket 20 and the support 22 to adapt to the matching position of the second rigid pipe section 12 and the pipe sleeve 21. After the position is accurately adjusted, tighten the nut on the screw to lock the bracket 20 and the support 22.

[0051] Meanwhile, because the catheter 1 has a flexible tube joint 11, even if a small angular or displacement deviation occurs between the second rigid tube joint 12 and the first rigid tube joint 10 during the fine-tuning process, the flexible tube joint 11 can absorb these deformations through its own slight bending, ensuring that no excessive stress is generated inside the entire catheter 1.

[0052] The surface temperature measuring device provided by this utility model not only greatly reduces the difficulty of installation, but also makes it extremely convenient to operate if the device body needs to be disassembled, maintained or replaced in subsequent use, simply by loosening the second fastener 41 and the first fastener 221.

[0053] It should be noted that the measured medium 5 referred to in this embodiment can be a furnace tube, a furnace wall, or other structures, and is not limited here; in addition, the surface temperature measuring device can be a surface thermocouple or a surface resistance thermometer. When it is a surface thermocouple, the temperature sensing element is a thermocouple wire, and when it is a surface resistance thermometer, the temperature sensing element is a resistance thermometer wire.

[0054] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A surface temperature measuring device, comprising a device body and a support assembly, wherein the device body includes a temperature sensing element and a conduit sleeved outside the temperature sensing element, characterized in that: The catheter comprises a first rigid tube segment, a flexible tube segment, and a second rigid tube segment connected in sequence. The first rigid tube section is located at the hot end of the temperature sensing element and is installed on the medium being measured; The second rigid tube section is located at the cold end of the temperature sensing element and extends in a direction away from the measured medium; The support assembly includes a bracket mounted on the second rigid pipe section and a support fixed to the measured medium; The bracket can be slidably mounted on the support along the axial direction of the first rigid tube section, and a first fastener for locking the relative position is provided between the two.

2. The surface temperature measuring device according to claim 1, characterized in that: The first rigid pipe section includes a pipe section body and a reversing section located at the end of the pipe section body, and the sliding direction of the support is parallel to the axial direction of the pipe section body; The reversing section extends in a direction away from the measured medium, and the flexible tube joint is connected to the reversing section.

3. The surface temperature measuring device according to claim 2, characterized in that, The support is provided with a sleeve, and the axis of the sleeve is parallel to the axis of the reversing section; The second rigid pipe section is inserted inside the pipe sleeve.

4. The surface temperature measuring device according to claim 3, characterized in that, The bracket is provided with an inclined mounting surface parallel to the axis of the reversing section, and the sleeve is mounted on the inclined mounting surface, with the axis of the sleeve parallel to the inclined mounting surface.

5. The surface temperature measuring device according to claim 4, characterized in that, The support includes two sets of vertical plates with parallel surfaces, and the lower ends of the two sets of vertical plates are slidably engaged with the support. Both sets of the upright plates have a side located within the mounting slope, and the conduit is simultaneously welded to the side of both sets of the upright plates.

6. The surface temperature measuring device according to claim 5, characterized in that, The support includes a set of clamping plates, which are held by the lower ends of the two sets of upright plates; The first fastener includes a screw that passes through both the clamping plate and the two sets of upright plates, and a nut mounted on the screw and abutting against the outer wall of the upright plate; Among them, the through holes on the two sets of vertical plates for inserting the screw are elongated holes, and the extension direction of the elongated holes is parallel to the axial direction of the first rigid pipe section.

7. The surface temperature measuring device according to claim 1, characterized in that, The first rigid pipe section is welded to the medium being tested.

8. The surface temperature measuring device according to claim 1, characterized in that, The first rigid pipe section is detachably connected to the measured medium via a connector.

9. The surface temperature measuring device according to claim 8, characterized in that, The connector is fixed to the medium being measured; The connector is provided with an insertion hole, and the first rigid tube section is partially inserted into the insertion hole. The connector is also threaded with a second fastener, which is locked to the outer wall of the insertion portion of the first rigid tube section.

10. The surface temperature measuring device according to claim 9, characterized in that, The entrance to the socket is shaped like a trumpet, wider on the outside and narrower on the inside.

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