发明名称 |
AN ARRANGEMENT AT THE INLET PIPE TO THE HEAT EXCHANGER UNIT IN A FLUE-GAS TUBE |
摘要 |
A heat exchanger unit (13) for recovering heat from the flue gases from a cylinder steam boiler (10), said heat exchanger unit comprising a flue-gas tube (14) and a heat-exchanging tube (16) which is supported concentrically inside the flue-gas tube (14) by a bent inlet pipe (19) extending from a lower opening (20) in the peripheral wall of the flue-gas tube (14) to an inlet opening (21) in a lower outwardly bulging end wall (22) of the heat-exchanging tube (16), and an outlet pipe (23) extending from an outlet opening (24) in an upper part of the peripheral wall of the heat-exchanging tube (16) to an upper opening (25) in the peripheral wall of the flue-gas tube (14). The inlet pipe (19) has a first, horizontal, straight end portion (19A), a second, upwardly directed, straight end portion (19B) and also an intermediate, curved portion (19C). The bending angle ( alpha ) of the curved portion exceeds 90 DEG and the other end portion (19B) extends with an inclination determined by said bending angle ( alpha ), towards the centre of curvature of a partially spherical portion of the lower end wall (22) of the heat-exchanging tube (16), in which wall the inlet opening (21) is arranged eccentrically in relation to the central longitudinal axis of the heat-exchanging tube (16).
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申请公布号 |
WO9727427(A1) |
申请公布日期 |
1997.07.31 |
申请号 |
WO1996SE01761 |
申请日期 |
1996.12.30 |
申请人 |
AALBORG INDUSTRIES A/S;SABELSTROEM, WILHELM, ERNST;NILSSON, SVEN, HAAKAN |
发明人 |
SABELSTROEM, WILHELM, ERNST;NILSSON, SVEN, HAAKAN |
分类号 |
F22B11/00;F22B9/04;F22B37/06;F22B37/14;F23J15/08;(IPC1-7):F22B37/10 |
主分类号 |
F22B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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