Regulating method of center heating system in urban area

Abstract

The invention relates to a regulating method of a center heating system in an urban area. The method includes the steps: (1) fitting an outdoor temperature with a regression curve of a heating index, and correcting the regression curve according to practical heating situations, (2) by predicting and calculating heat load needed by a whole heat-supply network, providing guidance for a heat source, (3) calculating and setting a secondary water supply / return temperature according to a primary water supply / return temperature of heat supply output, heat-supply network averaging control is carried out on heat exchange stations according to different distances between the heat exchange stations and the heat source, and avoiding the phenomenon that users at the near end are warm and users at the far end are cold, and (4) regulating the secondary water supply / return temperature in real time by controlling the regulating range of a valve. Therefore, heat supply quality is improved, energy consumption is saved, heat energy waste is reduced, the whole system can achieve the aim of supplying heat according to needs, and the fact that the heat supply effect of users is uniform is guaranteed.

Description

technical field [0001] The invention relates to urban heat supply technology, in particular to an adjustment method for central heating system in urban area. Background technique [0002] my country's current heating system operation management is still in the stage of manual operation. Most of them rely on experience to adjust the temperature. They are relatively backward in heating control. The heating quality and system heating efficiency are relatively poor. big gap. With the development of social and economic construction and the reform of the economic system, in order to meet people's increasing living needs, the area of ​​central heating in my country has shown a rapid growth trend, the heating rate of cities has continued to increase, and the development of urban central heating systems has become more and more more and more attention. [0003] According to statistics, in 2010, 228 cities across the country had centralized heating facilities, with a heating area...

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Problems solved by technology

[0008] (3) The measurement means of the parameters are backward

[0009] It is impossible to accurately analyze the operating conditions of the entire heating system, so that it is impossible to diagnose the actual situation on site

[0010] (4) Difficult to eliminate working condition imbalance

[0011] It is easy to cause poor heating quality and uneven heating and cooling of users

[0012] (5) Parameters do not match

[0013] It is difficult to match heat demand and heat supply, so that the system cannot operate under optimal conditions

[0014] The above situations have affected the full play of the advantages of central heating and caused a lot of waste of energy.

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