Heavy oil emulsified fuel combustion equipment
US5816790A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K5/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heavy oil emulsified fuel combustion furnace is provided which prevents lowering of combustion efficiency due to water content in the fuel as well as prevents elevation of sulfuric acid dew point due to water content in the flue gas of the combustion furnace. In the apparatus a heavy oil emulsified fuel (102) is heated by a heater (110) using a heat pipe etc. and then is separated by a water vaporizer (120) into heavy oil (122) and vapor (121) consisting of steam and a light oil combustible gas. The heavy oil (122) is supplied to a burner port of the combustion furnace, such as a boiler etc. The vapor (121) is condensed by a condenser (140) to produce liquid (141) comprising a mixture of water and light oil. The liquid (141) is separated by an oily water separator (150) into oil (151) and water (152). The oil (151) is used as a fuel for an igniting torch of the combustion furnace 10 and the water (152) is used partially as cooling water (41) for an SO.sub.X removal apparatus (40) and partially as an atomizing steam 9 or a soot blowing steam 8 in the boiler, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.