A method for monitoring the leakage state of thermal pipeline valves

Abstract

The invention discloses a method for monitoring the leakage state of a valve of a heat distribution pipeline. The method includes the steps that first, the pipe internal working medium temperature at the pipe length position behind the valve, the fluid temperature t01 in front of the valve and the environmental temperature around the pipeline behind the valve are measured; then, the relative leakage amount M of the valve is calculated by the adoption of the formula ; finally, the leakage degree of the valve is judged according to the calculated value of the relative leakage amount M. By means of the method for monitoring the leakage state of the valve of the heat distribution pipeline, the relative leakage amount is calculated by using temperature parameters which are directly relevant to the working media inside the heat distribution pipeline, the advantages of being simple in system, convenient to mount and maintain, stable and reliable to operate and the like are achieved, the leakage state of the valve can be judged timely and accurately, and real-time monitoring of the working condition of the valve is achieved.

Description

technical field [0001] The invention relates to a method for monitoring whether there is a leakage phenomenon in a valve of a thermal pipeline, and belongs to the technical field of monitoring. Background technique [0002] In the thermal pipeline for transporting steam, the steam will inevitably lose heat during the transmission process. When its temperature drops to the saturation temperature, it will start to condense and form condensed water. This part of water needs to be discharged from the main thermal pipeline in time through a special pipeline. , so as to avoid the water impact of the thermal pipeline, causing damage to the pipeline and equipment. The thermal pipeline that transports hot water will also install a sewage pipeline on the main pipeline due to the need for sewage discharge. [0003] Due to the needs of water drainage and sewage discharge, a certain number of water drainage and sewage discharge pipes are provided on the thermal pipeline, and a certain n...

AI Technical Summary

Problems solved by technology

[0009] In short, the existing internal leakage inspection methods of valves or poor monitoring effect, or complex system structure and large investment in testing equipment, are not suitable for testing thermal pipeline valves with a large number and complex spatial distribution.

Images