FIELD: heat engineering, particularly air inlet and outlet headers for exhaust gas heat recovery devices, particularly for devices to heat air with exhaust combustion products from compressor of gas-turbine plant used in gas-transfer devices for compressor stations of gas main pipelines.
SUBSTANCE: method involves cutting metal sheets into case blanks; folding and welding the blanks to create header body preferably having cylindrical shape; cutting orifice for tube plate installation into the case, wherein orifice edges define contour of cylindrical rectangle having height of 0.72-0.95 of header height in heat-exchanging unit and with angular width equal to 0.07-0.25 of header case cross-sectional perimeter; cutting out tube plate; beveling thereof and forming orifices in the tube plate, wherein summary orifice area is equal to 0.52-0.81 of total tube plate area; welding tube plate to above header case orifice edges so that orifice edges are arranged within the bounds of tube plate contacting the edges.
EFFECT: increased manufacturability, reduced metal consumption along with improved structural rigidity thereof, simplified production and decreased labor inputs.
13 cl, 5 dwg
| Title |
Year |
Author |
Number |
| METHOD FOR MANUFACTURE OF HEAT EXCHANGING DEVICE, METHOD OF DEVICE HEAT EXCHANGING UNIT MANUFACTURE (VERSIONS), METHOD FOR MANUFACTURE OF INTERMEDIATE AND/OR UPPER HEAT EXCHANGING UNIT OF DEVICE, METHOD FOR MANUFACTURE OF LOWER HEAT EXCHANGING UNIT OF DEVICE, METHOD FOR MANUFACTURE OF DEVICE HEAT EXCHANGING UNIT AIR SUPPLY OR EXHAUST HEADERS, TECHNOLOGICAL COMPLEX OF EQUIPMENT FOR MANUFACTURE OF DEVICE HEAT EXCHANGING UNITS, BERTH FOR ASSEMBLY OF DEVICE HEAT EXCHANGING UNIT (VERSIONS) AND DEVICE FOR VERTICAL STORAGE OF MOSTLY FOUR-LEG BEND PIPES OF DEVICE (VERSIONS) |
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|
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|
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|
RU2266186C1 |
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|
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| REGENERATIVE AIR HEATER |
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- Ovchar V.G.
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