Slag-melting burner apparatus
US8997665B2 · kind B2 · utility
Assignees
- MITSUBISHI HITACHI POWER SYSTEMS, LTD.
- JOBAN JOINT POWER CO., LTD.
- HOKKAIDO ELECTRIC POWER CO., INC.
- TOHOKU ELECTRIC POWER COMPANY, INC.
- TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED
- CHUBU ELECTRIC POWER COMPANY, INCORPORATED
- HOKURIKU ELECTRIC POWER COMPANY
- The Kansai Electric Power Co., Inc.
- THE CHUGOKU ELECTRIC POWER CO., INC.
- SHIKOKU ELECTRIC POWER CO., INC.
- KYUSHU ELECTRIC POWER CO., INC.
- ELECTRIC POWER DEVELOPMENT CO., LTD.
- CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
Inventors
Key dates
| Filing date | Oct 5, 2009 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Nov 6, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A leading end located in a two-stage entrained-flow bed coal gasifier has a double-walled structure including an outer cylinder and an inner cylinder, and cooling water for cooling the leading end is supplied through an interior of the inner cylinder to cool the leading end and is then returned to a base end through a space formed between the outer cylinder and the inner cylinder. The space formed between the outer cylinder and the inner cylinder has a smaller channel area than the interior of the inner cylinder, and a swirling flow along a guide formed on an outer circumferential surface of the inner cylinder and a substantially linear flow in a longitudinal direction of the outer cylinder and the inner cylinder are applied to the cooling water returned to the base end through the space formed between the outer cylinder and the inner cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.