Anti-vibration swing armored thermocouple

Through the design of armored thermocouples, using fixed baffles, movable baffles and spring connections, the problems of structural instability and vibration influence of thermocouples in high temperature and high pressure environments are solved, and longer life and higher precision temperature measurement are achieved.

CN223485321UActive Publication Date: 2025-10-28CHANGSHA FUSIDE AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202422766344.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-10-28
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

When used in high-temperature and high-pressure environments, existing thermocouples have complex structures, poor stability, limited service life, and cannot effectively resist measurement inaccuracies caused by equipment vibration.

Method used

The armored thermocouple design is adopted, and the fixed baffle, movable baffle and spring connection are used to reduce vibration through the spring, maintain the angular stability of the thermocouple and ensure accurate measurement.

Benefits of technology

It improves the service life and measurement accuracy of thermocouples and reduces temperature fluctuations caused by vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an armored thermocouple capable of preventing vibration amplitude, which comprises an armored thermocouple, a thermocouple in the armored thermocouple is arranged at the lower part inside the armored thermocouple, a fixed baffle plate is fixedly arranged at the bottom of the armored thermocouple, a movable baffle plate is arranged above the fixed baffle plate, and the movable baffle plate can freely slide on the armored thermocouple; the movable baffle is connected with the fixed baffle through a spring, and a clamping sleeve thread is fixedly arranged on the upper portion of the movable baffle. According to the utility model, through the arrangement of the spring, when equipment to be detected vibrates, the spring plays a role in reducing vibration, the detection device is protected, the service life of the detection device is prolonged, and meanwhile, the sheathed thermocouple is always in a stable angle state through the spring, so that the measurement accuracy of the thermocouple is ensured, and the temperature value fluctuation caused by vibration amplitude is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of thermometers, and in particular to a sheathed thermocouple with anti-vibration swing amplitude. Background Technology

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure the temperature of the medium and convert the temperature signal into a thermoelectric potential signal, which is then converted into the temperature of the measured medium by an electrical instrument (secondary instrument). The appearance of various thermocouples often varies greatly depending on the needs, but their basic structure is roughly the same. They are usually composed of thermocouples, insulating sleeves, protective tubes, and junction boxes, and are usually used in conjunction with display instruments, recording instruments, and electronic controllers.

[0003] At present, for specific industrial sites, thermocouples are usually used in high temperature and high pressure environments and require online monitoring. With the operation of the equipment, the instruments vibrate significantly. Existing thermocouples often have poor stability in actual use and limited service life due to their complex structure. Utility Model Content

[0004] The purpose of this invention is to provide an armored thermocouple with anti-vibration swing amplitude 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] An anti-vibration swing armored thermocouple includes an armored thermocouple, wherein the thermocouple is disposed inside the lower part of the armored thermocouple. A fixed baffle is fixedly provided at the bottom of the armored thermocouple, and a movable baffle is provided above the fixed baffle. The movable baffle can slide freely on the armored thermocouple. The movable baffle and the fixed baffle are connected by a spring. A ferrule thread is fixedly provided above the movable baffle. The pin output port of the armored thermocouple is connected to a metal mesh wire through a process connector, which is also provided with the ferrule thread.

[0007] Preferably, the process connector connects the armored thermocouple to the metal mesh wire by crimping.

[0008] Preferably, the metal mesh conductor is connected to an external processing device.

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

[0010] 1. By incorporating a spring, this utility model mitigates vibrations when the device under test vibrates, protecting the testing device and extending its service life. Simultaneously, the spring keeps the armored thermocouple in a stable angular state, ensuring accurate thermocouple measurements and preventing temperature fluctuations caused by vibration amplitude. 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 armored thermocouple with vibration-damping swing amplitude according to the present invention.

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

[0014] The markings in the attached diagram are described as follows: 10, armored thermocouple; 11, ferrule thread; 12, fixed baffle; 13, movable baffle; 14, spring; 15, PTFE component; 16, metal mesh wire; 17, process connection. Detailed Implementation

[0015] 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.

[0016] The following is combined with Figure 1-2 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.

[0017] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0018] Please see Figure 1-2This utility model provides an embodiment of a shock-resistant armored thermocouple, comprising an armored thermocouple 10, wherein the thermocouple in the armored thermocouple 10 is disposed in the lower interior, a fixed baffle 12 is fixedly provided at the bottom of the armored thermocouple 10, and a movable baffle 13 is provided above the fixed baffle 12. The movable baffle 13 can slide freely on the armored thermocouple 10, and the movable baffle 13 is connected to the fixed baffle 12 by a spring 14. A retaining thread 11 is fixedly provided above the movable baffle 13, and the pin output port of the armored thermocouple 10 is connected to a metal mesh wire 16 through a process connector 17, which is also provided with the retaining thread 11.

[0019] In another embodiment, the process connector 17 connects the armored thermocouple 10 to the metal mesh wire 16 by crimping.

[0020] In another embodiment, the metal mesh conductor 16 is connected to an external processing device.

[0021] In specific implementation, the ferrule thread 11 is inserted into the device under test. The lower ferrule thread 11 is moved to the corresponding position by rotation and tightening, and then fixed to the surface of the ferrule thread 10. When the lower ferrule thread 11 moves, it pushes the movable baffle 13 downwards, thereby compressing the spring 14. The lower ferrule thread 11 is then connected and fixed to the device under test via its threads. Subsequently, the position of the upper ferrule thread 11 is adjusted in the same way to be fixed to the corresponding position and the device under test. At this time, heat is conducted through the ferrule thread 10 to the internal thermocouple, obtaining its temperature value. During operation, the device generates a large amount of heat and experiences significant vibration. This device, by incorporating the spring 14, mitigates vibration when the device under test vibrates, protecting the device and increasing its lifespan. Simultaneously, the spring 14 keeps the ferrule thread 10 in a stable angular state, ensuring accurate thermocouple measurement and preventing temperature fluctuations caused by vibration.

[0022] It should be emphasized that the embodiments described in this utility model are illustrative and not 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 armored thermocouple, comprising an armored thermocouple (10), characterized in that: The thermocouple in the armored thermocouple (10) is located inside the lower part. A fixed baffle (12) is fixedly provided at the bottom of the armored thermocouple 10. A movable baffle (13) is provided above the fixed baffle (12). The movable baffle (13) can slide freely on the armored thermocouple (10). The movable baffle (13) and the fixed baffle (12) are connected by a spring (14). A ferrule thread (11) is fixedly provided above the movable baffle (13). The pin output port of the armored thermocouple (10) is connected to the metal mesh wire (16) through a process connector (17). The process connector (17) is also provided with the ferrule thread (11).

2. The armored thermocouple with vibration-damping amplitude according to claim 1, characterized in that: The process connector (17) connects the armored thermocouple (10) to the metal mesh wire (16) by crimping.

3. The armored thermocouple with vibration-damping amplitude according to claim 1, characterized in that: The metal mesh conductor (16) is connected to an external processing device.