公开(公告)号：US20160258073A1

公开(公告)日：2016-09-08

申请号：US15145119

申请日：2016-05-03

Applicant: ALSTOM Technology Ltd

Inventor： Anders Kenneth SORHUUS ,  Geir WEDDE ,  Odd Edgar BJARNO

IPC: C25C3/22 ,  C25C3/24 ,  F27D17/00 ,  F16L53/00 ,  F27B14/08

CPC classification number: C25C3/22 ,  C25C3/06 ,  C25C3/24 ,  C25C7/06 ,  F16L53/00 ,  F27B14/08 ,  F27D17/001 ,  F27D17/002 ,  F27D17/004 ,  F28D7/1615 ,  F28D7/1653 ,  F28D21/0003 ,  F28F9/0282 ,  F28F13/08 ,  F28F19/00 ,  Y02P10/262 ,  Y10T137/6416

Abstract: A raw gas collection system for collecting raw gas from a plurality of aluminium smelting pots is equipped with a plurality of branch ducts, each of which is arranged to channel a respective branch flow of raw gas from an aluminium smelting pot to a collection duct, which is common to and shared by the branch ducts. Each of said branch ducts is, near an outlet thereof, equipped with a curved section for aligning the branch flow with a flow direction of raw gas already present in the common collection duct, and a constriction for accelerating the branch flow through the branch duct outlet into the common collection duct. Furthermore, each of said branch ducts is equipped with a heat exchanger for removing heat from the respective branch flow of raw gas. The combined flow resistance of the constriction and the heat exchanger reduces the need for adjusting the respective branch flows using dampers, thereby reducing the power required to transport the raw gas.

Abstract translation: 用于从多个铝冶炼罐收集原料气体的原料气体收集系统配备有多个分支管道，每个分支管道布置成将来自铝冶炼锅的原料气体的相应分支流引导到收集管道， 是分支管道共用和共用的。 所述分支管道中的每一个在其出口附近都具有用于使分支流与​​已经存在于共同采集管道中的原料气体的流动方向对准的弯曲部分，以及用于加速通过分支管道出口 进入通用收集管。 此外，每个所述分支管道装备有用于从原气的相应分支流中除去热量的热交换器。 收缩部和热交换器的组合流动阻力减少了使用阻尼器调节相应分支流的需要，从而减少输送原料气体所需的功率。