Monitoring system and method for automatic sensing of pipeline leakage point of central air conditioner

Abstract

The invention discloses a monitoring system for automatic sensing of a pipeline leakage point of a central air conditioner. The monitoring system for automatic sensing of the pipeline leakage point ofthe central air conditioner comprises a sensing light source, an optical fiber circulator, a sensitive optical fiber and a data processing module, wherein the sensing light source is used for emitting pulse laser; the first port of the optical fiber circulator is used for receiving the pulsed laser, the second port of the optical fiber circulator is used for connecting a sensitive optical fiber laid on the wall of a central air conditioning pipeline, and the third port of the optical fiber circulator is used for connecting a photoelectric conversion module; the sensitive optical fiber is usedfor returning backward scattered light containing phase fluctuation in the transmission process of the pulse laser when a leakage point exists on the pipeline to the optical fiber circulator, outputting the backward scattered light to the photoelectric conversion module through the third port of the optical fiber circulator, and then arriving at a data processing module; and the data processing module is used for analyzing and processing electrical signals, determining the length from the leakage point position to the input end of the sensitive optical fiber based on the time when the sensinglight source emits the pulse laser and the time when the electrical signal with micro-vibration information is received, and determining the leakage point position on the pipeline in combination withthe corresponding relation between the length of the optical fiber and the pipeline position of the central air conditioner to improve the maintenance efficiency.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning, in particular to a monitoring system and method for automatically sensing pipeline leaks of central air-conditioning. Background technique [0002] Nowadays, some large shopping malls, residential buildings or offices are equipped with central air-conditioning. Although central air-conditioning is expensive, it does not affect its popularity because of its beautiful and safe performance. [0003] However, if there is a problem with the gas pipeline of the central air conditioner, the air conditioner will not work normally. In addition, the gas (water) pipeline of the central air conditioner is laid on the ceiling of the floor or other invisible places. Air (water) inspection is often very difficult, and maintenance personnel are required to check one by one, which is time-consuming and laborious. [0004] Therefore, in the prior art, the monitoring and maintenance of the central...

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Problems solved by technology

[0005] Aiming at the technical problem that the existing monitoring and maintenance of the central air-conditioning system relies on manpower, low efficiency, and insufficient intelligence, the embodiment of the present invention provides a monitoring system and method for automatic detection of pipeline leaks in the central air-conditioning system, which can effectively improve maintenance efficiency

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