Coal-fired generator of medium to large capacity专利检索-临界质量核能专利检索查询-专利查询网

Coal-fired generator of medium to large capacity

阅读：780发布：2023-12-07

专利汇可以提供Coal-fired generator of medium to large capacity专利检索，专利查询，专利分析的服务。并且A supercritical forced-flow once-through vapor generator circuitry in which the furnace enclosure consists essentially of three flow passes in a series-flow relationship. The first pass occupies the enclosure front wall, and the second and third passes occupy the enclosure rear wall and intermediate side walls. The invention is particularly useful for coal-fired generators of medium to large capacity wherein the three passes provide sufficient mass flow rates to cool the enclosure while at the same time employing normal sized tubes.，下面是Coal-fired generator of medium to large capacity专利的具体信息内容。

权利要求

1. In a supercritical forced-flow once-through vapor generator of medium to large capacity for coal firing and of the type having a rectangular upright furnace enclosure formed of a plurality of panels of upright tubes welded together lengthwise to form a gas tight coNstruction, including front, a pair of side and rear walls, the front and rear walls being separated by the pair of side walls, a plurality of burners in the front and rear walls, the improvement comprising a plurality of downcomers serially connecting said panels into first, second and third flow passes, said flow passes extending uninterrupted substantially the full height of the furnace enclosure, the first pass defining substantially the full extent of the front wall of the enclosure, the second and third passes defining substantially the full extents of the rear wall of the enclosure and of the side walls of the enclosure, respectively, or vice versa.

2. The generator of claim 1 wherein the second pass defines substantially the full extent of the furnace enclosure rear wall and the third pass defines substantially the full extents of the furnace enclosure side walls.

3. The generator of claim 1 wherein the second pass defines substantially the full extents of the furnace enclosure side walls and the third pass defines substantially the full extent of the furnace enclosure rear wall.

4. The generator of claim 1 further including means defining a division wall, and downcomer means connecting the division wall upstream of the furnace enclosure first pass.

5. The generator of claim 1 including buffer circuit means at the corners of the furnace enclosure comprised of panels parallel and between the panels of the enclosure passes, and means for transmitting to said buffer circuit panels portions of the flow to the adjacent pass panels so that the buffer circuit panels are at a temperature intermediate the temperatures of the adjacent pass panels.

6. The generator of claim 1 wherein the furnace enclosure comprises a high heat release zone in the area of the burners and a lower heat release zone above the high heat release zone, the tube diameters being greater in the low heat release zone.

7. The generator of claim 6 wherein the furnace enclosure front and rear walls define the generator first and second passes respectively, the side walls defining the generator third pass, the high heat release zone extending to an elevation of about two-thirds the height of the generator.

8. The generator of claim 7 wherein the width of the furnace enclosure between the side walls equals about 1.7 to about 2.5 times the enclosure depth, the side wall tubes in the high heat release zone being larger in diameter than the front and rear wall tubes in said zone.

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Coal-fired generator of medium to large capacity

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