Anti-seismic high-temperature thermocouple

Abstract

The anti-seismic high-temperature thermocouple comprises a detection tube, the detection tube is divided into a zone A and a zone B, the zone A and the zone B are arranged at an angle of 90 degrees, and a thermocouple is arranged in an inner cavity at the bottom of the zone B; according to the utility model, the arrangement mode that the area A and the area B form an angle is adopted, so that the detection device can be installed at a narrow position, and meanwhile, the height of the detection device can be reduced, thereby reducing the damage to the detection device caused by the vibration of equipment to be detected; the service life of the detection device is prolonged; the influence of vibration on the temperature measurement accuracy of the thermocouple and signal transmission is reduced; the protective sleeve is arranged on the outer wall of the detection pipe, so that the damage of high temperature to the wall body and the interior of the detection pipe is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of thermometers, in particular to a shock-resistant high-temperature thermocouple. Background Art

[0002] Thermocouple is a commonly used temperature measuring element in temperature measuring instruments. It directly measures the temperature of the medium and converts the temperature signal into a thermoelectric potential signal, which is then converted into the temperature of the measured medium through an electrical instrument (secondary instrument). Since it is a passive sensor, no external power supply is required for measurement, making it very convenient to use. In recent years, it has been often used in industry for temperature measurement in exhaust stations of gas-powered, fuel-powered, and aircraft engine equipment.

[0003] At present, when testing gas-powered, fuel-powered, aircraft engines and other equipment, the engine will generate vibrations, which can easily cause loosening, pulling out or even breaking under the action of external forces, affecting the equipment life and detection accuracy. Utility Model Content

[0004] The purpose of the present invention is to provide a shock-resistant high-temperature thermocouple to solve the problems raised in the above-mentioned background technology.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A shock-resistant high-temperature thermocouple includes a detection tube, which is divided into two parts, area A and area B. The area A and area B are arranged at 90 degrees. A thermocouple is provided in the inner cavity at the bottom of the area B. The thermocouple lead output port passes through the area A port on the detection tube and extends to the outside. The thermocouple lead output port is connected to the external wire through a handle connector. A protective kit is provided on the outer wall of the area B by crimping, and the protective kit is arranged above the thermocouple.

[0007] Preferably, a movable nut is provided on the area B, and the nut is connected to the device to be detected.

[0008] Preferably, the protection kit may be made of stainless steel.

[0009] Preferably, magnesium oxide powder is filled between the thermocouple and the inner wall of the detection tube.

[0010] The advantages and positive effects of the utility model are:

[0011] 1. The utility model adopts an angled arrangement of area A and area B, which allows the detection device to be installed in a narrow location. At the same time, the height of the detection device can be reduced, thereby reducing the damage to the detection device caused by vibration of the equipment to be detected, increasing the service life of the detection device and reducing the impact of vibration on the temperature measurement accuracy and signal transmission of the thermocouple.

[0012] 2. The utility model provides a protective kit on the outer wall of the detection tube to reduce damage to the wall and interior of the detection tube caused by high temperature and increase the service life. At the same time, the protective kit is made of stainless steel to achieve the maximum protection effect at the lowest cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of a shock-resistant high-temperature thermocouple of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the main view structure;

[0016] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] The markings in the accompanying drawings are described as follows: 10. Detection tube; 11. Area A; 12. Area B; 13. Protection kit; 14. Nut; 15. Thermocouple; 16. External wire; 17. Handle connector. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0019] The following combination Figure 1-2 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The front, back, left, right, up and down directions of the view are consistent. Figure 1 This is a front view of the device of the utility model. Figure 1 The directions shown are consistent with the front, back, left, right, up and down directions of the device of the present invention when viewed from the front.

[0020] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0021] See also Figure 1-2The utility model provides an embodiment: a shock-resistant high-temperature thermocouple, including a detection tube 10, the detection tube 10 is divided into two parts, area A 11 and area B 12, the area A 11 and the area B 12 are arranged at 90 degrees, a thermocouple 15 is provided in the inner cavity at the bottom of the area B 12, the lead output port of the thermocouple 15 passes through the port of area A 11 on the detection tube 10 and extends to the outside, the lead output port of the thermocouple 15 is connected to the external wire 16 through a handle connector 17, and a protective kit 13 is provided on the outer wall of the area B 12 by crimping, and the protective kit 13 is arranged above the thermocouple 15.

[0022] In addition, in one embodiment, a movable nut 14 is provided on the area B 12, and the nut 14 is connected to the device to be detected.

[0023] In addition, in one embodiment, the protection kit 13 can be made of stainless steel.

[0024] In addition, in one embodiment, magnesium oxide powder is filled between the thermocouple 15 and the inner wall of the detection tube 10 .

[0025] During specific implementation, the B area 12 part of the detection tube 10 is inserted into the device to be detected, and then the nut 14 is rotated to connect with the thread on the device to be detected. Then, the heat is transferred to the thermocouple 15 through the wall of the detection tube 10. The thermocouple 15 transmits the electrical signal through the wire 16. A protective kit 13 is provided on the outer wall of the detection tube 10 to reduce the damage of the wall and interior of the detection tube 10 caused by high temperature. The protective kit 13 is made of stainless steel, with the lowest cost and the greatest protection effect. The angled setting of area A 11 and area B 12 can make the device placed in a small position. Since the device to be detected is in long-term vibration during operation, the height of the detection device is too long, which will cause frequent vibration of the device and affect its service life. The greater the amplitude of the vibration, the more it will affect the detection temperature, causing the measured value to change. The detection device adopts the angled setting of area A 11 and area B 12, which greatly reduces the short service life and inaccurate measurement values ​​caused by vibration.

[0026] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A shock-resistant high-temperature thermocouple, comprising a detection tube (10), characterized in that: The detection tube (10) is divided into two parts, namely, zone A (11) and zone B (12). The zone A (11) and the zone B (12) are arranged at 90 degrees. A thermocouple (15) is provided in the inner cavity at the bottom of the zone B (12). The pin output port of the thermocouple (15) passes through the port of the zone A (11) on the detection tube (10) and extends to the outside. The pin output port of the thermocouple (15) is connected to the external wire (16) through a handle connector (17). A protective kit (13) is provided on the outer wall of the zone B (12) by crimping. The protective kit (13) is arranged above the thermocouple (15).

2. The shock-resistant high-temperature thermocouple according to claim 1, characterized in that: The B area (12) is provided with a movable nut (14).

3. The shock-resistant high-temperature thermocouple according to claim 1, characterized in that: The protection kit (13) can be made of stainless steel.

4. The shock-resistant high-temperature thermocouple according to claim 1, characterized in that: Magnesium oxide powder is filled between the thermocouple (15) and the inner wall of the detection tube (10).

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