Low-heat-loss operation method of line-focusing heat collection system and line-focusing heat collection system
US11953235B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 31, 2023 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/44
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A low-heat-loss operation method of a line-focusing heat collection system and the line-focusing heat collection system are provided. The method includes the following steps. Solar energy is utilized to preheat a collector tube in an empty tube state, so that the collector tube is in a preheating mode. After a set preheating temperature is reached, a heat transfer working medium is injected into the collector tube. In the injection process of the heat transfer working medium, an injection section of the collector tube is converted into a focusing mode from a preheating mode. After heat collection is finished, the circulation of the heat transfer working medium is stopped, and the focusing mode of the collector tube is kept. In the drainage process of the heat transfer working medium, an emptying section of the collector tube is converted into a light heat-tracing mode from a focusing mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.