A multi-sensor heating network leakage early warning monitoring method

Abstract

The invention discloses a multi-sensor heat supply network leakage early-warning and monitoring method, which comprises the steps of judging an external temperature and conductance mutation of a pipe; judging external reference of the pipe and a monitoring temperature and a conductance gradient difference; judging the difference values between flow and pressure of an external inlet and an external outlet of the pipe; and judging the operation state of a heat supply network by using a collaborative monitoring method of the mutation, the gradient difference and the difference values and using the temperature, the conductance mutation, the gradient difference, the pressure of the inlet and the outlet and the flow difference value. The leakage state of the heat supply network can be effectively identified during seepage or leakage of the heat supply network, and unnecessary energy waste is reduced. The multi-sensor heat supply network leakage early-warning and monitoring method is high in leakage early-warning and monitoring accuracy, convenient to use, capable of rapidly and accurately identifying the leakage and venting stat of the heat supply network, suitable for the field of industrial pipes of thermodynamics, petroleum, chemical industry and metallurgy.

Description

Technical field: [0001] The invention belongs to the technical field of heating network operation leakage monitoring, and specifically relates to a multi-sensor heating network leakage early warning monitoring method. Background technique: [0002] At present, my country’s economy is developing rapidly and people’s quality of life is improving day by day. Central heating has become the main heating method in most cities in northern my country due to its advantages in energy saving, high efficiency, and easy management and control. Naturally, heating network pipelines will expand and contract due to temperature changes. In order to compensate for the thermal expansion and contraction of heating network pipelines, compensation devices must be installed at intervals for heating pipelines. Due to factors such as construction and installation process and natural corrosion, the pipeline compensation device is the most prone to leakage in the heating network. Once the heating network l...

AI Technical Summary

Problems solved by technology

There are the following defects and deficiencies in the existing early warning and monitoring methods for heating network leakage: (1) the existing heating network monitoring methods are easily affected by fluctuations in heating load, and have low anti-interference ability; (2) the heating network in the prior art The leakage early warning and monitoring method is single, and does not combine temperature, conductance mutation, temperature, conductance gradient difference, pipeline inlet and outlet pressure, and flow difference to monitor the operation status of the heating network. At the same time, when the heating network leaks, it cannot discovered in time

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