公开(公告)号：WO2015047748A1

公开(公告)日：2015-04-02

申请号：PCT/US2014/055381

申请日：2014-09-12

Applicant: RHEEM MANUFACTURING COMPANY

Inventor： AKBARIMONFARED, Amin ,  SHELLENBERGER, Timothy J. ,  NEIHOUSE, Robert Steven ,  WILLBANKS, Scott Alan ,  FARLEY, Darryl ,  WHALEN, Nathan Taylor ,  REED, Shawn Allen

IPC: F23D14/46 ,  F23D14/70 ,  F24H3/00

CPC classification number: F23D14/70 ,  F23D14/08 ,  F24H9/0052

Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.

Abstract translation: 燃料燃烧炉具有专门设计的燃料/空气混合和燃烧结构。 燃料/空气混合结构具有混合声音衰减设计，并且包括具有穿孔侧壁部分的文丘里管，并且被通过其侧壁穿孔与文丘里管内部连通的噪声缓冲壳体室包围。 在混合结构的使用期间，空气以旋转图案流经文丘里管，同时燃料在内部横向注射旋转的空气。 燃烧结构包括燃烧器箱壳体，燃料/空气混合物流入，燃烧，然后作为热燃烧气体排出并通过热交换器管。 进入燃烧器箱壳体的燃料/空气混合物最初穿过不均匀穿孔的扩散板，其功能基本上以预定方式改变通过热交换器管的相对燃烧气体流速。