Leakage fault location method and device for heating primary pipe network

Abstract

The embodiment of the invention provides a heat-supply primary pipe network leakage fault positioning method and device. The method comprises the following steps of: obtaining supplemented water flowat an outlet of a water supplementing pump in a heat-supply primary pipe network; when the supplemented water flow achieves a preset flow value within preset time length, determining that the heat-supply primary pipe network has leakage faults; obtaining pressure at an inlet of a water supply pipeline in the heat-supply primary pipe network, pressure at an outlet of the water supply pipeline, pressure at an inlet of a water return pipeline and pressure at an outlet of the water return pipeline; within first preset time length of having leakage faults, subtracting pressure at the inlet of the water supply pipeline from pressure at the outlet of the water supply pipeline, thereby obtaining a first pressure difference value; subtracting pressure at the inlet of the water return pipeline frompressure at the outlet of the water return pipeline, thereby obtaining a second pressure difference value; and determining that the leakage faults appear on the water supply pipeline or the water return pipeline according to the size relationship between the maximum value of the first pressure difference value within the first preset time length and the minimum value of the second pressure difference value.

Description

technical field [0001] The invention relates to the technical field of heating networks, in particular to a method and device for locating leakage faults in a heating primary pipe network. Background technique [0002] With the sustained and rapid economic development and the continuous improvement of people's living standards, the penetration rate of urban central heating continues to increase, and the scale of central heating systems continues to expand. [0003] As an important part of the heating system, the heating network undertakes the task of transporting and distributing the heat from the heat source to various heat users in a timely manner. At the same time, the heating network is also a weak link in the reliability of the heating system. With the increase of the scale of the heating network and the increase of the running time, due to the influence of many factors such as the material of the pipeline and components, the way of laying, the environment, the construc...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method for locating the leakage fault of the primary heating pipe network to solve the technical problem in the prior art that the leakage of the heating pipe network cannot be monitored

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