Hot water storage tank with integrated pump and controller
US10760823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Dec 10, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24D2220/0271
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A hot water supply system decouples an intelligent hot water storage system from a water heating engine system. The water heating engine system includes a plurality of instantaneous water heaters that provide for redundant operation for improved reliability. The intelligent hot water storage system includes a storage tank that encloses a volume for storage of water. The intelligent hot water storage system includes a recirculation loop driven by an integrated pump and operated by an integrated controller. By positioning the tank recirculation outlet and inlet farther apart from each other, additional usable volume of hot water is provided by the intelligent hot water storage system. Isolation valves positioned on the input and output of a recirculation pump in the recirculation loop facilitate repair or replacement of the recirculation pump. The hot water system provides for increased capacity while providing redundant heating engines in a smaller floor space than conventional systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.