Patent ID: 11953235
Assignee: LANZHOU DACHENG TECHNOLOGY CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 12:
13. A line-focusing heat collection system, comprising collector tubes, a low-temperature tank and a high-temperature tank which respectively communicates with a heat collection inlet and a heat collection outlet of each of the collector tubes, and a heat transfer working medium which is flowed circularly, wherein one drainage tank communicates with the heat collection outlet of each of the collector tubes, each of the collector tubes is matched with a plurality of tracing mechanisms, each of the plurality of the tracing mechanisms is corresponding to one section of the collector tube, an injection section of the collector tube is converted into a focusing mode from a preheating mode by controlling a corresponding one of the plurality of the tracing mechanisms when the heat transfer working medium is injected, and an emptying section of the collector tube is converted into a light heat-tracing mode from a focusing mode by controlling a corresponding one of the plurality of the tracing mechanisms when the heat transfer working medium is drained; wherein the light heat-tracing mode comprises a focusing state and a defocusing state, and a temperature of each of the collector tubes in the light heat-tracing mode is controlled by adjusting the time proportion of the focusing state to the defocusing state.