The present invention relates to a solar byeonyuryang controlled system with a built-in coil thermal storage tank, the present invention provides a solar collector is that lists home; Coupled to the collector and, in the collector circulation pipe inside which the operating medium cycle is the solar heat collection by the collector accumulation; Heat storage tank the heat exchange between the water to be used for the working medium and the life formed; The heat storage tank and is in communication with untreated water flows, the heat storage tank and is in communication with untreated water flows, heat storage tank of the heat storage tank the hot water circulation pipe is supplied to the load side; A circulation pump for circulating the water contained in the heat storage tank; It is in communication with the collector circulation pipe doedoe connection at the top of the inside of the storage tank to the bottom of heat exchange coil that is arranged to be concentrated at the top of the density; And a controller for controlling the circulation rate of the collector according to the difference between the collector temperature and the heat storage tank outlet ON / OFF control of the circulation pump according to the difference between the outlet temperature and the outlet temperature and collector temperature of the heat storage tank top.
According to the present invention, while the heated heat medium in the collector through the heat exchange coil densely arranged on the top than at the bottom inside the heat storage tank, so heating the heat storage tank upper intensively can induce stratification promotion, sunrise, sunset or the solar radiation conditions are unstable Collector the outlet temperature heat storage tank to reduce in stages the circulation amount of the circulation pump is higher than the top temperature, by the temperature difference between the outlet temperature and the heat storage tank the outlet of the collector increases in stages the circulation amount of the set is large circulation pump than the upper limit value to be oN the circulation pump byeonyuryang ( through 變 流量) applied system has an effect capable of preventing the reversal phenomenon in which the exit temperature occurs is higher than the inlet temperature for the heat collecting operation collector.