CN201803808U - flexible thermocouple - Google Patents

Abstract

The utility model relates to a flexible thermocouple which comprises a plurality of flexible thermocouples, and the plurality of the flexible thermocouples are integrated and fixed together by a sealing component. The sealing component comprises a connecting part with external threads at two ends, a screw cap in threaded fit with the upper end of the connecting part, a tapered rubber seal ring and a gasket, wherein the tapered rubber seal ring is placed in a tapered hole which is arranged at the upper end of the connecting part and matched with the tapered rubber seal ring, the gasket is placed in a space of the connecting part on the tapered rubber seal ring, which is combined with the screw cap, the tapered rubber seal ring is provided with a plurality of holes matched with the outer diameter of the flexible thermocouples, and the connecting part, the screw cap and the gasket respectively comprise through holes for leading the plurality of the flexible thermocouples to pass through. The plurality of the thermocouples are sealed and fixed together through the sealing component, when the thermocouples need to be replaced, only the screw cap needs to be loosened, then the seal ring can be recovered to the original shape naturally, and the thermocouples can be extracted one by one, and the flexible thermocouple has the advantages of being good in sealing performance, being convenient for maintenance and replacement, being compact in structure and the like.

Description

flexible thermocouple

technical field

The utility model relates to a flexible thermocouple, in particular to an integration of flexible thermocouples containing multiple flexible thermocouples.

Background technique

Now petrochemical, electric power, metallurgy and other enterprises have large-scale machinery and equipment such as steam turbines, compressors, generators, blowers and pumps, and the main shafts of these machinery and equipment need to rotate at high speed for a long time. Once the temperature is too high for a long time, the bearings will be easily damaged. , so the temperature of the bearing bushes and bearings in the machinery and equipment needs to be monitored in real time to ensure the long-term normal operation of the machinery and equipment.

At present, the method of measuring the temperature of bearing bushes and bearings is to open holes in the bearing seat. The drilling of the bearing seat is related to its strength, so a bearing seat usually only has one threaded hole; and there is a large amount of lubricating oil or Cooling oil, so it needs to be sealed when installing the thermometer. Generally, only one thermometer can be inserted into a threaded hole to ensure its sealing; for multi-point temperature measurement, multiple thermocouples need to be fixed together with glue or welding, and then installed with threads, or directly on the bearing seat. Glue is used to directly seal the fixed seal on the threaded hole, which is not convenient for maintenance and replacement.

Contents of the invention

The technical problem to be solved by the utility model is: to provide a flexible thermocouple integration with multiple flexible thermocouples, so as to overcome the defects existing in the use of the existing separated multiple flexible thermocouples.

The technical solution adopted in the utility model is: a flexible thermocouple, including multiple flexible thermocouples, and the multiple flexible thermocouples are integrated and fixed together by a sealing assembly.

The further technical scheme of the utility model is: the sealing assembly is composed of a connecting piece with external threads at both ends, a nut that is threadedly matched with the upper end of the connecting piece, a conical rubber sealing ring and a washer, and the conical rubber sealing ring is placed In the tapered hole matched with the upper end of the connector, the gasket is placed in the space where the connector and the nut are combined on the conical rubber sealing ring. The matching holes, the connecting piece, the nut and the washer all have through holes through which a plurality of flexible thermocouples can pass.

The beneficial effects of the utility model: multiple thermocouples are sealed and fixed together by a sealing assembly with a conical rubber sealing ring, and by tightening the nut, the gasket will squeeze the conical rubber sealing ring, so that the conical rubber sealing ring is in the conical Compression deformation occurs between the hole and the thermocouple, so as to achieve the sealing effect; when the thermocouple needs to be replaced, just loosen the nut, the sealing ring will naturally recover to its original shape, and the thermocouple can be pulled out by itself; it has good sealing performance and is easy to maintain Easy replacement, compact structure and other advantages.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

Detailed ways

The embodiment shown in FIG. 1 includes multiple flexible thermocouples 1 and a sealing assembly for integrating and fixing the multiple flexible thermocouples 1 together. The sealing assembly is composed of a connecting piece 2 with external threads at both ends, a nut 5 threaded with the upper end of the connecting piece 2, a conical rubber sealing ring 3 and a washer 4, and the conical rubber sealing ring 3 is placed on the connecting piece 2 In the tapered hole matched with the upper end, the gasket 4 is placed in the space where the connector 2 and the nut 5 above the conical rubber sealing ring 3 are combined. The number of holes is equivalent to the number of thermocouples, the number of thermocouples is generally 2-8, and the conical rubber sealing ring is equipped with 2-8 holes; the connecting piece 2, nut 5 and gasket 4 There are through holes for allowing multiple flexible thermocouples 1 to pass through. The seal assembly is fixed at the cold junction of the flexible thermocouple.

When in use, fix the sealing assembly with the threaded hole on the bearing seat of the equipment, and the flexible thermocouple can turn around the bearing bush and the bearing, and measure the temperature by sticking to the wall. When the thermocouple needs to be replaced, just loosen the nut, the sealing ring will naturally recover to its original shape, and the thermocouple can be pulled out for replacement.

Claims (2)

1. A flexible thermocouple, characterized in that it includes multiple flexible thermocouples (1), and the multiple flexible thermocouples (1) are integrated and fixed together by a sealing assembly. 2. The flexible thermocouple according to claim 1, characterized in that: the sealing assembly consists of a connecting piece (2) with external threads at both ends, and a nut (5) threaded with the upper end of the connecting piece (2) , conical rubber sealing ring (3) and washer (4), the conical rubber sealing ring (3) is placed in the conical hole matched with the upper end of the connector (2), and the washer (4) is placed in the cone In the space where the connecting piece (2) and the nut (5) above the conical rubber sealing ring (3) are combined, the conical rubber sealing ring (3) is provided with multiple The connecting piece (2), the nut (5) and the washer (4) all have through holes through which multiple flexible thermocouples (1) can pass.

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