Plate heat exchanger and heat pump outdoor unit
US10161687B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jan 22, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2270/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A plate heat exchanger can reduce thermal contact between a second fluid (water and a third fluid (low-temperature, low-pressure two-phase refrigerant) to enhance thermal efficiency. A plate heat exchanger includes a heat transfer plate group that performs heat exchange between a first fluid of high-temperature, high-pressure gas refrigerant and a second fluid of a heating target fluid; and a heat transfer plate group that performs heat exchange between a first fluid of low-temperature, high-pressure liquid refrigerant and a third fluid of low-temperature, low-pressure two-phase liquid refrigerant. The heat transfer plate group forms refrigerant channels including a stack of plates, has a configuration that a flow of the first fluid of high-temperature, high-pressure gas refrigerant and a flow of the second fluid are alternately aligned in the refrigerant channels, and causes the second fluid to flow in the outermost refrigerant channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.