Continuous helical baffle heat exchanger
US11920878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Sep 28, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2009/228
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heater includes a flow guide and electrical resistance heating elements. The flow guide defines a continuous geometric helicoid disposed about a longitudinal axis and defines perforations that extend in a longitudinal direction through a first longitudinal length of the geometric helicoid. The first longitudinal length is less than a full longitudinal length of the geometric helicoid. The electrical resistance heating elements extend through the perforations. For each electrical resistance heating element, a length of that electrical resistance heating element and a pitch of the geometric helicoid at a distal end of that electrical resistance heating element are such that the distal end of that electrical resistance heating element is a distance X from the geometric helicoid at the distal end of that electrical resistance heating element. The distance X is less than or equal to 40% of the pitch at the distal end of that electrical resistance heating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.