Pipe clamp mounted temperature transmitter of split structure

Abstract

The utility model discloses a pipe clamp installation type temperature transmitter of split type structure belongs to electrical equipment technical field, it contains pipe clamp support and temperature sensing assembly, and pipe clamp support contains pipe clamp seat and heat preservation tube, and heat preservation tube is vertically set opposite pipe clamp seat and is through pipe clamp seat bottom, temperature sensing assembly contains electrical connection end and probe end, and electrical connection end is used to connect electrical cabin, and probe end can stretch into heat preservation tube and can detachable type connection with heat preservation tube, and simultaneously, after probe end stretches into heat preservation tube target position, electrical connection end can butt joint heat preservation tube upper end portion, the heat preservation tube of this scheme has good heat preservation, and it can improve heat convergence and transmission efficiency, in addition, temperature sensing assembly and pipe clamp support split type design, the subsequent sensing assembly maintenance and replacement are convenient, avoid the disadvantage that traditional structure needs to remove pipe clamp support and the heat preservation layer that is wrapped in its outside frequently when replacing or maintaining sensing assembly, has improved installation efficiency and use flexibility, has also saved use cost.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, and in particular relates to a split-structure pipe clamp-mounted temperature transmitter. Background Technology

[0002] Pipe clamp temperature transmitters are mainly used for measuring pipeline temperature. Their main structure includes a pipe clamp, a protective tube, and an electrical compartment (or meter head). Figure 1 As shown, a temperature sensor is located at the bottom of the pipe clamp, and a transmitter module is installed in the electrical compartment. A protective tube is placed between the pipe clamp and the electrical compartment, containing a lead wire for connecting the temperature sensor and the transmitter module. During use, the pipe clamp is fixed to the outer wall of the pipe with bolts. To avoid the influence of ambient temperature on sensor sampling during temperature measurement, the pipe clamp-type temperature sensor needs to be insulated during the measurement process. Specifically, insulation materials such as glass wool, rock wool, or rubber plastic are used to wrap the pipe, the pipe clamp of the temperature transmitter installed on it, and the mounting bracket together to form an outer insulation shell. However, when the temperature transmitter is calibrated, repaired, or replaced, the insulation layer needs to be removed, the sensor needs to be removed by unscrewing, a new sensor needs to be installed by unscrewing, and the insulation layer needs to be reinstalled. This operation is complicated, time-consuming, and labor-intensive. Furthermore, the pipe clamp part of many pipe clamp-type temperature transmitters is made of a single piece of steel, which affects the temperature measurement speed.

[0003] Based on the above analysis, the applicant designed a novel clamp-type temperature sensor. Utility Model Content

[0004] The purpose of this invention is to provide a split-structure pipe clamp-mounted temperature transmitter. This temperature transmitter adopts a split design for the pipe clamp bracket and the temperature sensing component. Later maintenance only requires replacing or disassembling the temperature sensing component, eliminating the need for frequent disassembly and assembly of the pipe clamp bracket and insulation layer, thus improving the convenience and speed of disassembly and assembly.

[0005] To address the aforementioned problems, this application provides a split-type clamp-mounted temperature transmitter: The split-type clamp-mounted temperature transmitter includes a clamp bracket and a temperature sensing assembly. The clamp bracket includes a clamp seat and an insulation tube. The insulation tube is perpendicular to the clamp seat and passes through the bottom of the clamp seat. The temperature sensing assembly includes an electrical connection end and a probe end. The electrical connection end is used to connect to the electrical compartment. The probe end can extend into the insulation tube and is detachably connected to the insulation tube. At the same time, after the probe end extends into the target position of the insulation tube, the electrical connection end can align with the upper end of the insulation tube.

[0006] As a preferred embodiment: The insulation pipe has an internal thread at one end near the pipe clamp seat, and the probe end of the temperature sensing component has an external thread that matches the internal thread of the insulation pipe. The temperature sensing component and the insulation pipe can be detachably connected through the cooperation of the internal and external threads.

[0007] As a preferred embodiment: The insulation pipe comprises an inner temperature conducting pipe, an intermediate heat insulation pipe, and an outer protective pipe nested in sequence. The internal thread is provided on the inner wall of the inner temperature conducting pipe, which is made of a material with high thermal conductivity to quickly transfer temperature to the temperature sensing component. The intermediate heat insulation pipe is made of a material with good heat insulation performance to insulate the inner temperature conducting pipe. The outer protective pipe is made of a high-strength, high-temperature resistant, and corrosion-resistant material to protect the inner temperature conducting pipe and the intermediate heat insulation pipe.

[0008] As a preferred embodiment: The internal temperature conduction tube is made of copper, copper alloy, or aluminum alloy; the intermediate heat insulation tube is made of nano-aerogel felt or aluminum silicate; and the external protective tube is made of stainless steel.

[0009] As a preferred embodiment: The internal temperature conduction tube, the intermediate heat insulation tube, and the external protective tube are tightly nested together; Alternatively, the internal temperature conduction tube is interference-fitted with the intermediate heat insulation tube to form a central heat insulation tube, and the central heat insulation tube is gap-fitted with the external protective tube, that is, a gap with air as the medium is left between the central heat insulation tube and the external protective tube.

[0010] As a preferred embodiment: The pipe clamp seat is provided with a stepped structure, the central heat insulation pipe is nested on the stepped structure and is flush with the bottom end of the pipe clamp seat, and the outer protective pipe is sleeved outside the central protective pipe and fixed to the pipe clamp seat by thread or welding.

[0011] As a preferred embodiment: The height of the internal temperature conduction tube is less than the height of the intermediate heat insulation tube. Meanwhile, the height of the intermediate heat insulation tube is 0.7-1.2cm higher than the outer protective tube or 1.5-2cm lower than the outer protective tube.

[0012] As a preferred embodiment, the electrical connection terminal of the temperature sensing component is provided with a sealing gasket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This temperature transmitter solution mainly includes a pipe clamp support and a temperature sensing component. The pipe clamp support has good thermal insulation performance, which can improve heat accumulation and transfer efficiency, thereby improving the temperature acquisition rate and accuracy of the temperature sensing component. In addition, the temperature sensing component and the pipe clamp support are designed separately and combined into a closed structure using a detachable method. The pipe clamp support, as a fixed component, will be permanently or long-term fixed to the pipeline, while the temperature sensing component, as a moving component, is detachably connected to the pipe clamp support. This facilitates subsequent maintenance and replacement of the sensing component, avoiding the drawbacks of traditional structures that require frequent removal of the pipe clamp support and the insulation layer covering it when replacing or maintaining the sensing component. This improves installation efficiency and usage flexibility, while also saving operating costs. It solves existing shortcomings and has certain market value and economic benefits. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an existing clamp-mounted temperature transmitter provided in this embodiment.

[0015] Figure 2 This is a front view schematic diagram of the split-structure pipe clamp-mounted temperature transmitter provided in this embodiment.

[0016] Figure 3 This is an exploded view of the split-structure pipe clamp-mounted temperature transmitter provided in this embodiment.

[0017] Figure 4 This is an exploded structural diagram of the pipe clamp support provided in this embodiment.

[0018] Figure 5 This is a cross-sectional view of the pipe clamp support provided in this embodiment.

[0019] Figure 6 This is a schematic cross-sectional view of the temperature sensing component and the pipe clamp bracket provided in this embodiment, which are detachably connected.

[0020] Figure Labels 10 is the pipe clamp support; 11 is the pipe clamp seat; 111 is the stepped structure; 12 is the insulation pipe; 121 is the internal temperature conduction pipe; 122 is the intermediate insulation pipe; 123 is the external protective pipe; 20 is the temperature sensing component; 21 is the electrical connection end; 22 is the probe end; 30 is the electrical compartment. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of the present invention.

[0022] like Figure 2-3 As shown in this embodiment, a split-structure pipe clamp-mounted temperature transmitter is provided. The temperature transmitter includes a pipe clamp bracket 10 and a temperature sensing component 20. The pipe clamp bracket 10 includes a pipe clamp seat 11 and an insulation pipe 12. In this embodiment, the pipe clamp seat 11 is made of stainless steel or (Honey / nickel-based) alloy plate, and has a flange or threaded interface. The pipe clamp seat 11 is used to connect to the pipe. The structure of the insulation pipe 12 is improved compared to the traditional stainless steel outer casing, giving it insulation properties. The insulated pipe 12 is vertically installed and communicates with the pipe clamp seat 11. It is fixedly connected to the pipe clamp seat 11 by welding or nesting to form a whole. In this embodiment, the pipe clamp support 10, composed of the insulated pipe 12 and the pipe clamp seat 11, is preferably a fixed component relative to the temperature sensing component 20. It can be permanently or long-term fixed to the pipeline during use, eliminating the need for frequent disassembly and reassembly. Furthermore, depending on the actual engineering installation needs, insulation materials such as glass wool, rock wool, or rubber-plastic composites can be wrapped around the outside of the pipe clamp support 10 to form an insulation layer. Temperature sensing component... Temperature sensing component 20 includes an electrical connection end 21 and a probe end 22. The electrical connection end 21 is threadedly connected to the electrical compartment 30. The probe end 22 can extend into the insulation pipe 12 and is detachably connected to the insulation pipe 12. The detachable connection facilitates the separation of temperature sensing component 20 from pipe clamp bracket 10, providing convenience for subsequent maintenance and replacement of temperature sensing component 20, and eliminating the drawbacks of the traditional integrated design structure. At the same time, after the probe end 22 extends into the target position of insulation pipe 12, the electrical connection end 21 can just connect with the upper end of insulation pipe 12, thus avoiding the safety hazard caused by temperature overflow through the upper end of insulation pipe 12. It can be understood that the length of insulation pipe 12 should be set according to the length of temperature sensing component 20 to ensure that the probe end 22 of temperature sensing component 20 can be installed at the target position of insulation pipe 12, thereby improving temperature acquisition accuracy. In this embodiment, the target position of probe end 22 in insulation pipe 12 is preferably close to pipe clamp seat 11. This position is close to the pipe, reducing the impact of temperature diffusion on data accuracy.

[0023] In this embodiment, the probe end 22 of the temperature sensing component 20 is provided with a temperature sensor, which is preferably the existing PT100 temperature sensor.

[0024] In this embodiment, the temperature sensing component 20 also includes a protective tube, which is disposed between the probe end 22 and the electrical connection end 21, and the cable of the probe end 22 can extend to the electrical connection end 21 through the protective tube.

[0025] In this embodiment, the detachable connection between the temperature sensing component 20 and the insulation pipe 12 can be achieved by means of snap-fit ​​or screw connection. As a preferred embodiment, the temperature sensing component 20 and the insulation pipe 12 are detachably connected by screw connection: Specifically, the end of the insulation pipe 12 near the pipe clamp seat 11 is provided with an internal thread, and at the same time, the probe end 22 of the temperature sensing component 20 is provided with an external thread that matches the internal thread of the insulation pipe 12. The temperature sensing component 20 and the insulation pipe 12 can be detachably connected through the cooperation of the internal and external threads. In this embodiment, the structure of the temperature sensing component 20 has been adjusted so that its probe end 22 has the dual functions of connection and temperature acquisition. It is understood that the design of the external thread of the probe end 22 should avoid damage to the temperature probe. It should be noted that the above-mentioned tapping technology of the probe end 22 of the temperature sensing component 20 can be achieved through communication with the manufacturer. The use of internal and external thread cooperation in this solution facilitates disassembly and assembly, and allows direct contact with the inside of the insulation pipe 12, thereby facilitating temperature transfer and achieving rapid temperature measurement.

[0026] Of course, in other specific embodiments of this example, the temperature sensing component 20 and the insulation pipe 12 can also be detachably connected by a snap-fit ​​method. When the snap-fit ​​method is used, it can be achieved by snapping the probe end 22 with the inner wall of the insulation pipe 12 near the pipe clamp seat 11, or by snapping the electrical connection end 21 with the inner wall of the upper open end of the insulation pipe 12.

[0027] As a preferred embodiment, as explained above, the structure of the insulation pipe 12 has been adjusted to give it better insulation performance compared to traditional stainless steel pipes. For details of the adjusted structure, please refer to [link to specific details]. Figure 4 The insulation pipe 12 comprises, from the inside out, an inner temperature conducting pipe 121, an intermediate heat insulation pipe 122, and an outer protective pipe 123, nested sequentially. An internal thread is provided on the inner wall of the inner temperature conducting pipe 121. The inner cavity of the inner temperature conducting pipe 121 has a variable diameter structure near the pipe clamp seat 11, which facilitates heat energy concentration. Furthermore, the inner temperature conducting pipe 121 is made of a material with high thermal conductivity, specifically copper, copper alloy, or aluminum alloy. In this embodiment, copper is preferred, as its thermal conductivity is approximately 400 W / m·K, making it an excellent heat-conducting material. During use, the probe end 22 of the temperature sensing component 20 is connected to its threaded connection, such as... Figure 6As shown, the internal temperature conduction tube 121 can quickly transfer temperature to the temperature sensing component 20, improving the temperature measurement rate of the temperature sensing component 20. The intermediate heat insulation tube 122 is made of a material with excellent heat insulation performance, specifically either nano-aerogel felt or aluminum silicate, preferably nano-aerogel felt, which has a thermal conductivity of only 0.032 W / m·K at 400℃, exhibiting excellent heat insulation performance. It can insulate the internal temperature conduction tube 121, preventing temperature diffusion on the internal temperature conduction tube 121 and thus affecting the acquisition accuracy. The outer protective tube 123 is made of a high-strength, high-temperature resistant, and corrosion-resistant material, specifically 316 stainless steel, to protect the internal temperature conduction tube 121 and the intermediate heat insulation tube 122 from mechanical damage. It can be seen that the above three-layer structure design of the heat insulation tube 12 in this embodiment can greatly improve the heat insulation performance and strength of the heat insulation tube 12, laying the foundation for high-precision acquisition by the temperature sensing component 20.

[0028] As a preferred embodiment, the internal temperature conduction tube 121, the intermediate heat insulation tube 122, and the external protective tube 123 constituting the heat insulation tube 12 are tightly nested together, that is, the three are in close contact with each other. This structure clamps the intermediate heat insulation tube 122 between the two metal tubes, which can improve the life of the intermediate heat insulation tube 122.

[0029] Alternatively, the internal temperature conduction tube 121 and the intermediate heat insulation tube 122 are interference-fitted to form a central heat insulation tube, and the central heat insulation tube is gap-fitted with the outer protective tube 123. That is, the internal temperature conduction tube 121 and the intermediate heat insulation tube 122 are in close contact, but a gap with air as the medium is left between the intermediate heat insulation tube 122 and the outer protective tube 123. This structure avoids direct contact between the intermediate heat insulation tube 122 and the outer protective tube 123, and can effectively reduce heat conduction. It is understood that the size of this gap is sufficient to ensure that the intermediate heat insulation tube 122 and the outer protective tube 123 do not contact each other, and it does not need to be large. The preferred size is 0.3-0.8cm.

[0030] The above are two preferred designs for the insulation pipe 12 in this embodiment. Other feasible and reasonable solutions are also within the protection scope of this embodiment.

[0031] As a preferred embodiment, the insulation pipe 12 is preferably designed using the latter of the two schemes described above, that is, a gap is left between the intermediate insulation pipe 122 and the outer protective pipe 123. For this structure, the specific structure for connecting it to the pipe clamp seat 11 in this embodiment adopts the following scheme, such as... Figure 5 As shown: The pipe clamp seat 11 is provided with a stepped structure 111. The central heat insulation pipe, which is nested by the internal temperature conduction pipe 121 and the intermediate heat insulation pipe 122, is set on the stepped structure 111 and is flush with the lower end of the pipe clamp seat 11. This ensures that the internal temperature conduction pipe 121 can contact the pipe and conduct heat quickly. The stepped structure 111 can support and limit the radial displacement of the central heat insulation pipe. Figure 5 The cross-sectional view provided in this embodiment shows that the stepped structure 111 should be formed by a sinking groove, and the end of the central heat insulation pipe is provided with a protruding edge that is interference-fitted with the sinking groove; the outer protective pipe 123 is sleeved on the outside of the central protective pipe and fixed to the pipe clamp seat 11 by thread or welding. In this embodiment, welding is preferred for fixing.

[0032] In a preferred embodiment, the height of the internal temperature conduction pipe 121 is less than the height of the intermediate heat insulation pipe 122. Simultaneously, the height of the intermediate heat insulation pipe 122 is 0.7-1.2 cm higher than the outer protective pipe 123 or 1.5-2 cm lower than the outer protective pipe 123. According to... Figure 4 It is known that the internal temperature conduction tube 121 has the smallest height. Since it is used to conduct temperature, it is only necessary to ensure that the temperature from the tube clamp 11 end can be quickly transferred to the probe end 22 of the temperature sensing component 20. Since the material of the intermediate heat insulation tube 122 is nano aerogel felt, which has a certain deformation space when compressed, the specific height of the intermediate heat insulation tube 122 can be selectively designed according to actual needs.

[0033] This embodiment is preferably: When the size of the electrical connection end 21 of the temperature sensing component 20 is larger than the inner diameter of the intermediate heat insulation pipe 122 and smaller than the inner diameter of the outer protective pipe 123, the height of the intermediate heat insulation pipe 122 is 0.7-1.2cm higher than that of the outer protective pipe 123. After the probe end 22 is inserted into the target position of the heat insulation pipe 12, the electrical connection end 21 can seal the end of the intermediate heat insulation pipe 122. At the same time, the intermediate heat insulation pipe 122 is squeezed and deformed to shrink, which can contact the inner wall of the outer protective pipe 123 and thus achieve docking of the upper end of the heat insulation pipe 12.

[0034] When the size of the electrical connection end 21 of the temperature sensing component 20 is adapted to the inner diameter of the outer protective tube 123, and the height of the intermediate heat insulation tube 122 is 1.5-2cm lower than that of the outer protective tube 123, after the probe end 22 extends into the target position of the heat insulation tube 12, the electrical connection end 21 can be snapped into the end of the outer protective tube 123 to align with the upper end of the heat insulation tube 12.

[0035] In this preferred embodiment, the electrical connection end 21 of the temperature sensing component 20 is provided with a sealing gasket, which can improve the sealing performance of the electrical connection end 21 to the end of the insulation pipe 12.

[0036] The specific operating principle of this temperature transmitter in this embodiment includes: During installation: First, fix the pipe clamp bracket 10 to the pipe with bolts. If necessary, wrap it with insulation material to form an insulation layer. Then, insert the probe end 22 of the temperature sensing unit into the insulation pipe 12 and fix it in the target position inside the insulation pipe 12 through the internal and external threads. Finally, install the electrical compartment 30, i.e. the meter head, on the electrical connection end 21 of the temperature sensing unit. In use, since the pipe clamp seat 11 is connected to the insulation pipe 12, and the internal temperature conduction pipe 121 of the insulation pipe 12 is flush with the bottom of the pipe clamp seat 11, it can sense the temperature and transmit it immediately, achieving rapid preheating. At the same time, with the cooperation of the intermediate insulation pipe 122, the temperature diffusion can be reduced, ensuring that the temperature transmitted by the internal temperature conduction pipe 121 is as close as possible to the pipe temperature. Furthermore, since the probe end 22 of the temperature sensing component 20 is threadedly connected to the internal temperature conduction pipe 121, temperature sensing can be achieved through direct contact, improving the accuracy and speed of temperature acquisition.

[0037] In summary, the temperature transmitter in this embodiment mainly includes a pipe clamp bracket 10 and a temperature sensing component 20. The pipe clamp bracket 10 has good thermal insulation performance, which can improve heat accumulation and transfer efficiency. On the one hand, it can improve the temperature acquisition rate of the temperature sensing component 20, and on the other hand, it can improve the temperature sampling accuracy. In addition, the temperature sensing component 20 and the pipe clamp bracket 10 are designed separately and combined into a closed structure in a detachable manner. The pipe clamp bracket 10, as a fixed component, will be permanently or long-term fixed on the pipeline, while the temperature sensing component 20, as a moving component, is detachably connected to the pipe clamp bracket 10. This facilitates the subsequent maintenance and replacement of the sensing component and avoids the drawback of the traditional structure, which requires frequent removal of the pipe clamp bracket 10 and the insulation layer wrapped around it when replacing or maintaining the sensing component. This improves installation efficiency and usage flexibility, and also saves on usage costs. It solves the existing shortcomings and has certain market value and economic benefits.

[0038] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various improvements without departing from this utility model, and these improvements should also be considered within the scope of protection of this utility model. These improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of the claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A split-type pipe clamp-mounted temperature transmitter, comprising a pipe clamp bracket (10) and a temperature sensing assembly (20), characterized in that: The pipe clamp bracket (10) includes a pipe clamp seat (11) and an insulation pipe (12). The insulation pipe (12) is vertically arranged relative to the pipe clamp seat (11) and passes through the bottom of the pipe clamp seat (11). The temperature sensing component (20) includes an electrical connection end (21) and a probe end (22). The probe end (22) can extend into the insulation pipe (12) and is detachably connected to the insulation pipe (12). At the same time, after the probe end (22) extends into the target position of the insulation pipe (12), the electrical connection end (21) can connect the upper end of the insulation pipe (12).

2. The split-type pipe clamp-mounted temperature transmitter according to claim 1, characterized in that: The insulation pipe (12) has an internal thread at one end near the pipe clamp seat (11). Meanwhile, the probe end (22) of the temperature sensing component (20) has an external thread that matches the internal thread of the insulation pipe (12). The temperature sensing component (20) and the insulation pipe (12) can be detachably connected through the cooperation of the internal thread and the external thread.

3. The split-type clamp-mounted temperature transmitter according to claim 2, characterized in that: The insulation pipe (12) includes an inner temperature conducting pipe (121), an intermediate heat insulation pipe (122), and an outer protective pipe (123) nested in sequence. The internal thread is provided on the inner wall of the inner temperature conducting pipe (121), which is made of a material with high thermal conductivity. The intermediate heat insulation pipe (122) is made of a material with good heat insulation performance. The outer protective pipe (123) is made of a high-strength, high-temperature resistant, and corrosion-resistant material.

4. The split-type clamp-mounted temperature transmitter according to claim 3, characterized in that: The internal temperature conduction tube (121) is made of copper, copper alloy or aluminum alloy; the intermediate heat insulation tube (122) is made of nano aerogel felt or aluminum silicate; the external protective tube (123) is made of stainless steel.

5. The split-type clamp-mounted temperature transmitter according to claim 3, characterized in that: The internal temperature conduction pipe (121), the intermediate heat insulation pipe (122), and the external protective pipe (123) are tightly nested together; Alternatively, the internal temperature conduction tube (121) is press-fitted with the intermediate heat insulation tube (122) to form a central heat insulation tube, and the central heat insulation tube is gap-fitted with the external protective tube (123), that is, a gap with air as the medium is left between the central heat insulation tube and the external protective tube (123).

6. The split-type clamp-mounted temperature transmitter according to claim 5, characterized in that: The pipe clamp seat (11) is provided with a stepped structure (111), the heat insulation pipe (12) is nested on the stepped structure (111) and is flush with the bottom end of the pipe clamp seat (11), and the outer protective pipe (123) is sleeved on the outside of the central heat insulation pipe and fixed on the pipe clamp seat (11) by thread or welding.

7. The split-type clamp-mounted temperature transmitter according to claim 5, characterized in that: The height of the internal temperature conduction pipe (121) is less than the height of the intermediate heat insulation pipe (122). At the same time, the height of the intermediate heat insulation pipe (122) is 0.7-1.2cm higher than the external protective pipe (123) or 1.5-2cm lower than the external protective pipe (123).

8. The split-type clamp-mounted temperature transmitter according to claim 1, characterized in that: The electrical connection terminal (21) of the temperature sensing component (20) is provided with a sealing gasket.

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