A District Energy Supply System Using Central Heating and District Energy Stations

Abstract

The present invention provides a regional energy supply system using centralized heating and partitioned energy stations, which is mainly used for regional energy supply of buildings with centralized heating conditions. The partitioned energy station of the present invention can not only meet the central heating demand of the building complex in winter, but also meet the regional cooling demand of the building complex in summer. One or more sub-regional energy stations in the building complex can provide chilled water to one or more other sub-regional energy stations through central heating pipelines, and can also supply one or more other sub-regional energy stations through central heating pipelines. A partitioned energy station obtains chilled water; multiple partitioned energy stations are used to realize regional energy supply of buildings, instead of building large-scale centralized energy stations, which reduces the initial investment of building chillers and supporting facilities, and improves Equipment utilization and energy utilization.

Description

technical field [0001] The invention belongs to an energy supply system, and in particular relates to a regional energy supply system adopting centralized heating and partitioned energy stations. Background technique [0002] The conventional building air-conditioning system is to set up a refrigeration station for a building energy-consuming unit, prepare air-conditioning chilled water, and then provide chilled water to the air-conditioning terminal system of the building energy-consuming unit through a circulating water pipeline system; for a building complex, That is, each building energy-consuming unit needs to be equipped with a refrigeration station to meet the air-conditioning needs of each building energy-consuming unit. The district cooling is to set up a centralized centralized energy station for a large area of ​​buildings, prepare air-conditioning chilled water, and then provide chilled water to the air-conditioning terminal system of each building energy unit th...

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Problems solved by technology

[0006] For the selection of cooling solutions for building groups, theoretically speaking, the above-mentioned district cooling mode has obvious investment and operational advantages compared with the scattered installation of chillers in each building’s energy-consuming units, but there are still many problems in practice. The main problems are: (1) Centralized energy stations deliver air-conditioning chilled water to building energy-consuming units, requiring new water supply and return pipes for transporting and distributing air-conditioning chilled water, which increases system investment; (2) Buildings with a large area often It is not built and put into use at the same time, and it usually takes several years of development to have a corresponding scale. However, the corresponding construction scale and equipment investment need to be planned in the early stage of the district cooling model, resulting in poor operating economy in the early stage of regional construction. Conducive to return on investment

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