METHOD FOR CONTROLLING HUMIDITY ON A PIPELINE WITH A THERMAL INSULATION LAYER AND A DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2022 - IPC F17D5/06 G01M3/16 

FIELD: pipeline equipment.

SUBSTANCE: group of inventions relates to the field of pipelines with a thermal insulation layer and can be used for operational monitoring of the moisture state of the thermal insulation layer and detection of areas with increased insulation humidity. The method includes the placement of signal conductors in the thermal insulation layer, the determination of humidity. In the device for implementing the method, the signal conductors are made in the form of two stainless steel rods with a diameter of 4-6 mm. The rods are placed in the thermal insulation layer on both sides of the pipeline parallel to each other at a distance from the outer surface of the pipeline of no more than 1/2 the thickness of the thermal insulation layer. In this case, the upper ends of the rods protrude above the outer surface of the thermal insulation layer by 10-20 mm, and the lower ends of the rods are placed below the horizontal axis of the pipeline. The upper ends of the rods are connected by a bolted connection to a cable with a cross section of 1*4 mm², a length that provides connection to the terminals of the measuring device. Additionally, the connection point of the rods with the cable and the protruding parts of the rods are placed in sealed protective casings made of segments of polyethylene pipe with an inner diameter of 20 mm and a height of 50 mm and filled with plasticized bitumen mastic.

EFFECT: simplifying the process of operational humidity control on a pipeline with a thermal insulation layer by simplifying the design of the device, expanding the technological possibilities of using the device by simplifying the installation and dismantling of the device, manufacturing and application, reducing the duration of obtaining the measurement result on a specific section of the pipeline, improving the quality of work in the field, as well as reducing material costs.

2 cl, 1 dwg