An energy-saving solar hot water centralized supply system

Abstract

The invention discloses an energy-saving solar hot water centralized supply system, comprising: a solar heat collection system, which includes a solar heat collector and a water storage tank; a hot water pipeline, which includes a main pipeline and a plurality of branch pipelines, the main pipeline The first end of the water storage tank is communicated with the water storage tank, and a plurality of branch pipes are sleeved inside the main pipe to form a plurality of parallel branches wrapped by the main pipe. It is connected to a single user at the corresponding height on the building to supply hot water to the user; the first end of the main pipeline is connected to the water storage tank through a buffer pipe, and the first end of the buffer pipe is connected to the water outlet of the water storage tank. The inner diameter of the second end is larger than the inner diameter of the first end of the buffer pipe, and communicates with the first end of the main pipeline to form a temporary water storage mechanism connected to the water storage tank and the first end of the main pipeline.

Description

technical field [0001] The invention relates to the technical field of solar energy, and more specifically, the invention relates to an energy-saving solar hot water centralized supply system. Background technique [0002] my country is rich in solar energy resources, and the total annual solar radiation of more than two-thirds of the country's land area exceeds 3340-8360MJ / m 2 , the annual average sunshine hours are more than 2200 hours. At present, my country's energy-saving market is mainly concentrated in the fields of industry and construction, and the integrated technology of solar energy and buildings has become one of the commonly used building energy-saving technologies. [0003] A conventional solar water heating system includes a solar heat collection water supply and return system and a user terminal water supply and return system. The branch pipelines entering each user terminal are respectively connected to the large-diameter main pipeline connected with the s...

AI Technical Summary

Problems solved by technology

[0003] A conventional solar water heating system includes a solar heat collection water supply and return system and a user terminal water supply and return system. The branch pipelines entering each user terminal are respectively connected to the large-diameter main pipeline connected with the solar water storage heater, and the main pipeline is carried out. Shared, that is, as long as one user opens the hot water valve, the water in the water storage heater needs to flow into the user through the large-diameter main pipeline. After closing the hot water valve, a large amount of hot water is retained in the main pipeline or circulated through the main pipeline , the pipe heat dissipation is very high, causing a large amount of heat loss, and the heat loss rate is generally as high as 80%, resulting in a waste of resources

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