Multi-heat-source single-pipe waste heat utilization heat supply system

Abstract

The invention provides a multi-heat-source single-pipe waste heat utilization heat supply system and method. The system comprises multiple heat sources, a single-pipe heat supply network and heating stations. The heating stations comprise one or more of energy stations, indirect supply stations, direct supply stations and large-temperature-difference heating stations, an outlet of the initial heat source is connected with an inlet of one heating station through the single-pipe heat supply network, the heating stations are connected to the single-pipe heat supply network in series, the heat sources and the heating stations are alternately connected in series, independent circulating water pumps are arranged on inlet pipelines of the heating stations, an outlet of one heating station is connected with an inlet of the next heating station through the single-pipe heat supply network or connected with a water return port of the next heat source, and an outlet of the next heat source is connected with an inlet of the further next heating station through the single-pipe heat supply network. An outlet of the heating station at the tail end is connected with a water return port of the initial heat source through the single-pipe heat supply network, and then a circulating loop of the single-pipe heat supply network is formed; the single-pipe heat supply network is a branch pipe network annularly arranged by an equal-pipe-diameter heat supply pipeline. The system is convenient to install and small in occupied area and urban municipal infrastructure can be promoted.

Description

technical field [0001] The invention relates to a multi-heat source single-pipe waste heat utilization heating system, which belongs to the technical field of heating. Background technique [0002] In the traditional heating system, the heat circulation system consists of water supply and return pipes, various valves, expanders, brackets, pipe trenches and water tanks. The layout forms are divided into dendritic and circular. Two pipelines for water supply and return are laid. Due to many factors such as pipelines, resistance loss of heat exchangers, terrain height difference in heating areas, and power of main circulating water pumps in heating networks, the other The transportation distance is generally 15 to 20 kilometers, and a booster station (pressure isolation station) needs to be built for long-distance transportation. Moreover, in the traditional double-pipe system for water supply and return, the diameter of the pipe changes with the design load condition, resista...

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Problems solved by technology

Moreover, in the traditional double-pipe system for water supply and return, the diameter of the pipe changes with the design load condition, resistance loss and flow change, which wastes pipe materials, large initial investment, complex system, inconvenient installation, and large floor space.

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