Solar water heating system with a backup water heater, and electronic temperature control for a backup heater in a forced circulation solar water heating system
US8485178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2008 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | May 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B10/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The forced recirculation solar water heating system with a backup water heater works through an electronic card that initiates the operation and activation of the water recirculators when there is a setpoint temperature difference between the panel and the storage tank detected by means of a bimetallic cable connected at one of the top ends of the panel and another bimetallic cable at the upper part of the storage tank. This storage tank has a series of safety check valves that prevent temperature loss due to hot water backflow to the hydraulic network or due to natural reverse recirculation, thus avoiding excess pressure in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.