Control method and system for hydraulic disorders of cold/heat supply pipe network

Abstract

The invention relates to a control method and system for hydraulic disorders of a cold / heat supply pipe network. The method comprises the steps that a hydraulic simulation model of a cold / heat supplypipe network system is set up; the flow distribution scheme of users is confirmed; according to the flow distribution scheme of the users, the hydraulic conditions of the users are calculated throughthe running historical data of the users; according to the hydraulic conditions of the users, primary hydraulic adjustment is carried out on the pipe network through the model analysis method; according to the historical temperature records of the old / heat supply pipe network system, the artificial neural network is adopted for predicating outdoor temperature; according to the outdoor predicated temperature, models are set up for different running adjusting manners to be compared and calculated; according to the calculation result, the corresponding running adjusting manners are selected, andthe pipe network system obtained after primary hydraulic adjustment is adjusted secondarily; and hydraulic condition inspection is carried out on the pipe network system obtained after secondary adjustment. According to the method, on the premise of achieving hydraulic balance of the cold / heat supply pipe network, hydraulic balance adjustment can be completed within a short time after the cold / heat supply system is put into operation.

Description

technical field [0001] The invention relates to the field of hydraulic regulation of a cooling / heating pipe network, in particular to a method and system for controlling hydraulic imbalance of a cooling / heating pipe network. Background technique [0002] As the scale of regional centralized heating and cooling continues to expand, environmental management standards continue to improve, and residents have higher and higher requirements for comfort. How to regulate the central heating and cooling system and make correct regulations, improve the economic and social benefits of the network, and reduce operating costs are the fundamental problems faced by the energy supply industry. [0003] At present, many scholars have carried out a series of studies on the hydraulic imbalance of the pipeline network. The operation adjustment method has been able to solve the operation adjustment problem of a single project, but in terms of universality, there are still big problems in the flo...

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Problems solved by technology

[0003] At present, many scholars have carried out a series of studies on the hydraulic imbalance of the pipeline network. The operation adjustment method has been able to solve the operation adjustment problem of a single project, but in terms of universality, there are still big problems in the flow distribution scheme of each heat source subjectivity, should be able to meet all engineering needs when adjusting

[0004] In the dynamic operation of the pipe network, users at the most unfavorable end often cannot get enough cold / heat, resulting in excessive pressure and excessive flow for near-end users; too low resource pressure and low flow for far-end users , which in turn causes the hydraulic imbalance of the pipe network, which eventually leads to uneven cooling and heating of users, and the cold / heat imbalance of the entire cooling / heating pipe network, and the system cannot operate optimally

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