Shock-resistant high-temperature temperature transmitter

Abstract

An anti-seismic high-temperature temperature transmitter comprises a limiting rod, a junction box is fixedly installed at the upper end of the limiting rod, the junction box is composed of a shell and a sealing cover, one end of the sealing cover can freely move around one end of the shell, and the sealing cover and the shell can form a sealed cavity; according to the utility model, the heat exchange area is increased through the movable flange, heat dissipation is increased, when the detection part at the lower end of the limiting rod is subjected to high temperature, continuous upward transfer of heat is reduced, meanwhile, the transmitter and the binding post are located in the junction box, and a space exists between the transmitter and the binding post, so that equipment heat dissipation is increased, and the transmitter is further protected from being influenced by high temperature; and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection, and in particular to a shock-resistant high-temperature temperature transmitter. Background Technology

[0002] Temperature transmitters use thermocouples or resistance temperature detectors (RTDs) as sensing elements, and the output signal from the sensing element is sent to the transmitter module. A temperature transmitter is an instrument that converts temperature variables into a standardized, transmittable output signal, primarily used for the measurement and control of temperature parameters in industrial processes. Temperature is one of the most common and fundamental parameters in industrial production processes, and its accurate measurement and effective control are crucial for the normal and orderly operation of industrial production.

[0003] Currently, in the steel smelting industry, the high temperature of the smelting furnace affects the temperature transmitter, impacting the accuracy of temperature measurement and causing damage to the equipment, resulting in short product lifespan and low economic efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a shock-resistant high-temperature temperature transmitter to solve the problems mentioned in the background art.

[0005] The technical problem solved by this utility model is achieved through the following technical solution:

[0006] A shock-resistant high-temperature temperature transmitter includes a limiting rod. A junction box is fixedly mounted on the upper end of the limiting rod. The junction box consists of a housing and a sealing cover. One end of the sealing cover can move freely around one end of the housing, forming a sealed cavity. The bottom end of the housing communicates with the limiting rod. A terminal post is provided in the inner cavity of the housing. The terminal post is fixed to the bottom of the inner cavity of the housing by a shock-absorbing spring and a limiting screw. The shock-absorbing spring is sleeved on the limiting screw and contacts the terminal post to reduce vibration and increase the service life of the equipment. A transmitter is provided in the inner cavity of the sealing cover. This structure facilitates the replacement of the transmitter. A thermocouple is provided at the bottom of the inner cavity of the limiting rod. The thermocouple is connected to the terminal post by a wire. The terminal post is connected to the transmitter by a wire. A movable nut is provided on the outer wall of the limiting rod. The movable nut is connected to a movable flange. The movable flange is used to limit the depth of the detection end of the limiting rod inserted into the equipment. At the same time, it can increase heat dissipation when heat is transferred to the movable flange.

[0007] Preferably, the outer wall of the housing is provided with an aviation plug, the input end of which is connected to the transmitter via a wire, and the output end of which is connected to an external device.

[0008] Preferably, an asbestos gasket is provided between the terminal block and the bottom of the inner cavity of the housing. The asbestos gasket is used to prevent equipment vibration from damaging the terminal block and to extend the service life of the terminal block.

[0009] The advantages and positive effects of this utility model are:

[0010] This invention increases the heat exchange area by using a movable flange, thereby increasing heat dissipation. When the detection part at the lower end of the limit rod is subjected to high temperature, the heat transfer to the upper part is reduced. At the same time, the transmitter and the terminal block are located in the junction box, and there is space between them, which increases the heat dissipation of the equipment, thereby protecting the transmitter from high temperature and increasing its service life. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the overall structure of the shock-resistant high-temperature temperature transmitter of this utility model;

[0013] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0014] Figure 3 This utility model Figure 1 Schematic diagram of the left-side view structure.

[0015] The markings in the attached diagram are described as follows: 10. Limit rod; 11. Thermocouple; 12. Movable nut; 13. Movable flange; 14. Junction box; 15. Housing; 16. Sealing cover; 17. Transmitter; 18. Aviation plug; 19. Terminal block; 20. Asbestos gasket; 21. Shock-absorbing spring; 22. Limit screw. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] The following is combined with Figure 1-3 This utility model will be described in detail below. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of front, back, left, right, up, and down in the view are consistent. Figure 1 This is a front view of the device of this utility model. Figure 1 The directions shown are consistent with the front-facing, back-facing, left-right, up-down directions of the device.

[0018] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0019] Please see Figure 1-3 This utility model provides an embodiment of a shock-resistant high-temperature temperature transmitter, including a limiting rod 10. A junction box 14 is fixedly installed on the upper end of the limiting rod 10. The junction box 14 consists of a housing 15 and a sealing cover 16. One end of the sealing cover 16 can move freely around one end of the housing 15, and the two can form a sealed cavity. The bottom end of the housing 15 communicates with the limiting rod 10. A terminal post 19 is provided in the inner cavity of the housing 15. The terminal post 19 is fixed to the bottom of the inner cavity of the housing 15 by a shock-absorbing spring 21 and a limiting screw 22. The shock-absorbing spring 21 is sleeved on the limiting screw 22 and connected to the terminal post 19. The contact of the terminal block 19 reduces vibration and increases equipment lifespan. A transmitter 17 is installed inside the sealing cover 16, which facilitates the replacement of the transmitter 17. A thermocouple 11 is installed at the bottom of the inner cavity of the limiting rod 10. The thermocouple 11 is connected to the terminal block 19 by a wire, and the terminal block 19 is connected to the transmitter 17 by a wire. A movable nut 12 is fixed on the outer wall of the limiting rod 10. The movable nut 12 is connected to a movable flange 13. The movable flange 13 is used to limit the depth of the detection end of the limiting rod 10 inserted into the equipment. At the same time, when heat is transferred to the movable flange 13, it can increase heat dissipation.

[0020] In another embodiment, an aviation plug 18 is provided on the outer wall of the housing 15. The input end of the aviation plug 18 is connected to the transmitter 17 via a wire, and the output end of the aviation plug 18 is connected to an external device.

[0021] In another embodiment, an asbestos gasket 20 is provided between the terminal 19 and the bottom of the inner cavity of the housing 15. The asbestos gasket 20 is to prevent equipment vibration from damaging the terminal 19 and to extend the service life of the terminal 19.

[0022] In practice, the detection part at the lower end of the limit rod 10 is inserted into the device under test and secured by the movable flange 13, ensuring a fixed length of insertion. Heat is then transferred to the thermocouple 11, and subsequently through the wires to the terminal 19, transmitter 17, and finally out through the aviation connector 18. While heat inevitably travels upwards through the limit rod 10, the movable flange 13 increases the heat exchange area, thus reducing further upward heat transfer. Simultaneously, the space between the transmitter 17 and terminal 19 within the junction box 14 enhances heat dissipation, protecting the transmitter 17 from high temperatures and extending its service life.

[0023] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A shock-resistant high-temperature temperature transmitter, comprising a limiting rod (10), characterized in that: A junction box (14) is fixedly installed on the upper end of the limiting rod (10). The junction box (14) consists of a housing (15) and a sealing cover (16). One end of the sealing cover (16) can move freely around one end of the housing (15), and the two can form a sealed cavity. The bottom end of the housing (15) is connected to the limiting rod (10). A terminal post (19) is provided in the inner cavity of the housing (15). The terminal post (19) is fixed to the bottom of the inner cavity of the housing (15) by a shock-absorbing spring (21) and a limiting screw (22). The shock-absorbing spring (21) is sleeved on the limiting screw (22) and contacts the terminal (19). A transmitter (17) is provided in the inner cavity of the sealing cover (16). A thermocouple (11) is provided at the bottom of the inner cavity of the limiting rod (10). The thermocouple (11) is connected to the terminal (19) by a wire. The terminal (19) is connected to the transmitter (17) by a wire. A movable nut (12) is provided on the outer wall of the limiting rod (10). The movable nut (12) is connected to the movable flange (13).

2. The shock-resistant high-temperature temperature transmitter according to claim 1, characterized in that: An aviation plug (18) is provided on the outer wall of the housing (15). The input end of the aviation plug (18) is connected to the transmitter (17) through a wire, and the output end of the aviation plug (18) is connected to an external device.

3. The shock-resistant high-temperature temperature transmitter according to claim 1, characterized in that: An asbestos gasket (20) is provided between the terminal block (19) and the bottom of the inner cavity of the housing (15).

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