Solar domestic hot water heating circulation supply system

Abstract

The invention discloses a solar domestic hot water heating circulation supply system. The system mainly consists of a solar heat collector, a heat collecting hot water storage tank, a solar circulating pump, a heating circulating pump, a variable-frequency hot water pump, a coil heat exchanger, a negative-pressure eliminator, a volume heat exchanger and a control cabinet, wherein outlet water of the heat collecting hot water storage tank is connected with a heating water supply pipe; the heating water supply pipe is connected with the coil heat exchanger, and is provided with the heating circulating pump; the negative-pressure eliminator is mounted at the top of the coil heat exchanger; a water inlet pipe and a cold water supply pipe are arranged at the bottom of the coil heat exchanger; the water inlet pipe extends to the upper part in the coil heat exchanger; the lower part of the coil heat exchanger is provided with a water outlet pipe for connecting with the volume heat exchanger; and outlet water of the volume heat exchanger is connected with a hot water supply pipe. The system has such advantages as energy conservation, safety, economy and intelligent control, and has the beneficial effects of complete protection functions, stable pressure of hot water supply, good use effect and strong adaptability.

Description

technical field [0001] The invention relates to the technical field of solar hot water, in particular to a solar domestic hot water heating cycle supply system. Background technique [0002] In recent years, the use of solar energy to prepare domestic hot water systems has developed rapidly, but relatively large or large-scale solar domestic hot water heating circulation supply systems are rare, mainly because solar heat sources have low density and instability compared with conventional heat sources And uncontrollable characteristics, low density means that the heat provided by solar energy per unit time is very low, it is difficult to heat cold water to the use temperature at one time like conventional heat sources; instability means that solar energy changes throughout the year, and Either yes or no; Uncontrollability means that it is difficult to control when solar heat is collected, which leads to the problem of overheating of solar heat when no hot water is used or whe...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the use of solar energy to prepare domestic hot water systems has developed rapidly, but relatively large or large-scale solar domestic hot water heating circulation supply systems are rare, mainly because solar heat sources have low density and instability compared with conventional heat sources And uncontrollable characteristics, low density means that the heat provided by solar energy per unit time is very low, it is difficult to heat cold water to the use temperature at one time like conventional heat sources; instability means that solar energy changes throughout the year, and Either yes or no; uncontrollability means that it is difficult to control when solar heat is collected, which leads to the problem of overheating of solar heat when no hot water is used or when the amount of hot water is small.

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