Temperature control auxiliary water tank of solar water heating system

Abstract

The invention discloses a temperature control auxiliary water tank of a solar water heating system. The temperature control auxiliary water tank of the solar water heating system is mainly composed of a tubular structure heat sink and relative control valves. A magnetic valve controls flow direction of hot-water of a system heat collector, and excess heat obtained by the system is diffused in the air through the auxiliary water tank, and thereby the purposes of limiting the water temperature to rise and achieving the water tank temperature being controlled at 60 DEG C or set as needed in summer are achieved. The amount of hot water design of Jiangsu area is added to 2 square meters per hectoliter from the existing 1.43 square meters per hectoliter to break through value range recommended by national standard 'GB 50364-2005'. Warming temperature per day of storing water in winter is improved. Rate of winter auxiliary energy consumption reduces from 46.6% to 25% and reduces by 46% compared with the existing rate and per ton of hot water more saves 9.6 watts of electricity. The system heat collector of a solar energy 'fin-type heat pipe' heat collecting pipe (201110023016.0) is especially selected, auxiliary energy consumption is further reduced, per ton of the hot water more saves 20.6 watts of the electricity in winter, and reliability, economical efficiency and energy-saving effect of a hot water system are improved. The temperature control auxiliary water tank of the solar water heating system has the advantages of being reasonable in structure and design, simple in technology, low in cost, convenient to install and use, free of occupying area and the like.

Description

technical field [0001] The invention relates to an auxiliary water tank of a solar water heating system, in particular to an auxiliary water tank which can significantly increase the daily temperature rise range of the system water tank in winter and limit the super high temperature of the water stored in summer, and belongs to the field of solar energy application. Background technique [0002] The existing solar water heating system is mainly composed of system collectors, various sensors, electrical control systems and water tanks, etc. The water storage capacity of the water tanks is based on 4.4. 2 for the recommended value design. Due to the large difference in solar radiation energy in various regions, the value range of hot water is also relatively large, which is 1.2-2.0M 2 / 100L (1.2-2.0 square meters / 100 liters), the greater the local irradiated energy, the smaller the value. For example, the area of ​​the system collector for every 100L of hot water in Jiangsu ...

AI Technical Summary

Problems solved by technology

As a result, only the temperature of the water storage on the day of the test met the bidding requirements, while the actual water storage temperature of the water tank in summer can still reach above 80°C

Therefore, according to 1.43M in Jiangsu area 2 The solar central heating system water tank designed with a water storage capacity of about 100L can only avoid the frequent boiling of the water stored in the water tank in summer, but cannot overcome other defects, but it makes the proportion of auxiliary heating energy consumption required for water storage in the winter water tank Increased from 32.6% according to the standard design to 46.6%, reducing the energy saving effect and economy of the solar water heating system

Images