Distributed type solar heat supply system and method

Abstract

The invention discloses a distributed type solar heat supply system. The system comprises a concentrated heating station and multiple user solar heat supply systems. Each user solar heat supply systemis provided with a user heating station, the user solar heat supply systems carry out heat exchange with the corresponding user heating stations through second heat exchange pipeline hot water pipesand second heat exchange pipeline cold water pipes, the user heating stations are connected to a heat supply pipe network water supply pipe of the concentrated heating station through third heat exchange pipeline hot water pipes, and are connected to a heat supply pipe network water returning pipe of the concentrated heating station through third heat exchange pipeline cold water pipes, the user solar heat supply systems can convey rich heat to a heat supply pipe network, and the heat supply pipe network can supplement heat to the user solar heat supply systems. The characteristics of heat production and heat using desynchrony of users are used, through coordination of the heat supply pipe network, user heat needs can be met, the load of a concentrated heat source can be reduced, the energy saving aim is achieved, the heat supply stability is improved, and meanwhile the problem that in the urban area, due to space limiting, a concentrated solar heat supply system cannot be applied is solved.

Description

technical field [0001] The invention belongs to the technical field of solar heating, in particular to a distributed solar heating system and method. Background technique [0002] Solar energy is an inexhaustible clean energy. With the gradual reduction of fossil fuels and the increasingly severe international energy situation, solar energy utilization technology has been widely used in production and life, among which solar heating systems are one type. [0003] The solar heating system uses abundant solar energy to meet the heating and domestic hot water needs of buildings, which greatly saves the use of fossil energy and alleviates serious environmental pollution caused by traditional heating methods dominated by coal; however, due to fluctuations in solar energy resources Large, low energy flow density, low guarantee rate and poor thermal stability of the household solar heating system. In the past, in order to solve this problem, the household solar heating system was d...

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Problems solved by technology

The solar central heating system takes advantage of the incomplete synchronization of heat consumption by multiple users. While improving thermal stability, it can control repeated investment in each building, and has the advantages of good economy, high efficiency, and high stability; however, solar centralized heating The collector array of the thermal system often requires a large area of ​​installation site. Most of the cities and towns in my country have dense buildings and precious land resources, which are not suitable for the establishment of large-scale concentrated solar heating systems.

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