A multi-sensor heating network leakage early warning monitoring system

Abstract

The invention discloses a multi-sensor heat supply network leakage early-warning and monitoring system, which comprises a reference temperature sensor, a reference conductance sensor, a pipe leakage early-warning and monitoring instrument, an outlet flow sensor, an outlet pressure sensor, a heat supply pipe, an inlet pressure sensor, an inlet flow sensor, an outlet conductance sensor, a pipe temperature monitoring unit and an inlet conductance sensor. Inlet and outlet pressure and flow data in the pipe of the heat supply network, temperature and conductance data at the lower part of the pipe, and environment reference temperature and conductance data are collected by adopting a multi-sensor collaborative monitoring technique, and the operation state of the heat supply network is judged by using the temperature, conductance mutation, a gradient difference, and inlet and outlet pressure and flow difference values; and 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 system is a novel heat supply network leakage early-warning and monitoring technology, and is of great significance in promoting operation optimization and transformation of the heat supply network.

Description

Technical field: [0001] The invention belongs to the technical field of heating network operation leakage monitoring equipment, and in particular relates to a multi-sensor heating network leakage early warning and monitoring system. 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 of good energy saving effect, high efficiency, and easy management and control. Under natural circumstances, the heating network pipes will expand with heat and contract with cold due to temperature changes. In order to compensate for the thermal expansion and contraction of the heating network pipes, the heating pipes need to be installed with compensation devices at intervals. Due to factors such as construction and installation process and natural corrosion, the pipeline compensation device is the...

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Problems solved by technology

The existing heating network leakage early warning monitoring system has the following defects and deficiencies: (1) The existing heating network monitoring lacks a formed heating network leakage early warning monitoring equipment, and most of the monitoring equipment stays in the laboratory stage and is not in the industrial field. Installation and application; (2) Most of the existing heating networks are not equipped with leakage early warning and monitoring devices, and the daily operation of the heating network mainly relies on manual inspections, lacking a device with high leakage location accuracy and continuous and real-time monitoring of the operating status of the heating network; (3) The early warning and monitoring method of heating network leakage in the prior art is single, and the direct method and indirect method are not combined to monitor the operation status of the heating network, and at the same time, the micro leakage status of the heating network cannot be detected in time

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