-
公开(公告)号：US20150113991A1
公开(公告)日：2015-04-30
申请号：US14522994
申请日：2014-10-24
Applicant: ALSTOM Technology Ltd
Inventor： Devis TONON , Mirko Ruben Bothien
CPC classification number: F23R3/002 , F01N1/023 , F23M20/005 , F23R3/02 , F23R2900/00014
Abstract: The present invention relates to a damping device for a combustor of a gas turbine for suppressing combustion instabilities. More specifically, the invention relates to a design of a broadband damping device for a low emission combustor having at least one resonator for damping pressure fluctuations in the combustion chamber. It is an object of the invention to provide a damping device with a quarter wave damper having broadband characteristics. The damping device for a combustor of a gas turbine according to the invention comprises a casing defining a resonator volume, a hole at a front face of the casing for allowing fluid communication between the resonator volume and the combustion chamber, the casing having parameters such that it acts as a quarter wave damper, is characterized in that the resonator volume is limited by a rear face and at least one lateral surface of the casing, whereby at least one lateral surface is equipped with one or more cavities inside and the rear face is equipped with at least one feed hole for feeding a purging fluid into the resonator volume. The preferably groove-shaped side cavities initiate energy dissipating vertical flows.
Abstract translation: 本发明涉及一种用于抑制燃烧不稳定性的燃气轮机燃烧器的阻尼装置。 更具体地，本发明涉及一种用于低排放燃烧器的宽带阻尼装置的设计，其具有用于阻止燃烧室中的压力波动的至少一个谐振器。 本发明的目的是提供具有宽带特性的四分之一波形阻尼器的阻尼装置。 根据本发明的用于燃气轮机的燃烧器的阻尼装置包括限定谐振器体积的壳体，在壳体的前表面处的孔，用于允许谐振器体积和燃烧室之间的流体连通，壳体具有如下参数： 其作用为四分之一波浪阻尼器，其特征在于，谐振器体积受到壳体的后表面和至少一个侧表面的限制，由此至少一个侧表面在内部配备有一个或多个空腔，而后面是 配备有至少一个进料孔，用于将清洗流体进料到共振器体积中。 优选的槽形侧腔引发能量消散垂直流。
-
公开(公告)号：US20150096829A1
公开(公告)日：2015-04-09
申请号：US14505564
申请日：2014-10-03
Applicant: ALSTOM Technology Ltd
Inventor： Mirko Ruben BOTHIEN , Devis TONON , Franklin Marie GENIN , Douglas Anthony PENNELL
IPC: F02C7/24
CPC classification number: F02C7/24 , F23M20/005 , F23R3/16 , F23R2900/00014
Abstract: An acoustic damper includes a neck and a damping volume. The neck has a mouth being in fluid connection with a chamber. The chamber is limited by an inner surface of at least one wall. The acoustic damper device includes a recess located between the mouth of the neck and the inner surface of the wall.
Abstract translation: 声阻尼器包括颈部和阻尼体积。 颈部具有与腔室流体连接的口。 该室由至少一个壁的内表面限制。 声阻尼装置包括位于颈部的口部和壁的内表面之间的凹部。
-
公开(公告)号：US20150377487A1
公开(公告)日：2015-12-31
申请号：US14742839
申请日：2015-06-18
Applicant: ALSTOM Technology Ltd
Inventor： Devis TONON , Mirko Ruben Bothien
CPC classification number: F23R3/002 , F01N1/00 , F01N1/003 , F01N1/02 , F01N1/023 , F01N1/026 , F05B2260/96 , F05B2260/964 , F05D2260/96 , F05D2260/963 , F23M20/005 , F23R3/44 , F23R2900/00001 , F23R2900/00005 , F23R2900/00014
Abstract: The present invention generally relates to a gas turbine and more in particular it is related to a damper assembly for a combustion chamber of a gas turbine. According to preferred embodiments, the present solution provides a damper assembly including protrusions on a wall of the neck. These protrusions result in a side wall reactance to the acoustic field that has the effect of decreasing the effective speed of sound in the neck. The decrease of the effective speed of sound in the neck is equivalent to an increase of the effective neck length.
Abstract translation: 本发明一般涉及一种燃气轮机，更具体地涉及一种用于燃气轮机燃烧室的阻尼器组件。 根据优选实施例，本解决方案提供了包括在颈部的壁上的突起的阻尼器组件。 这些突起导致对声场的侧壁电抗，其具有降低颈部中的有效声音效果的效果。 颈部有效声速的下降等于颈部有效长度的增加。
-
公开(公告)号：US20150247426A1
公开(公告)日：2015-09-03
申请号：US14631945
申请日：2015-02-26
Applicant: ALSTOM Technology Ltd
Inventor： Franklin Marie GENIN , Devis TONON , Mirko Ruben BOTHIEN , Douglas Anthony PENNELL
IPC: F01D25/30
CPC classification number: F01D25/30 , F05D2220/32 , F05D2260/96 , F23R3/06 , F23R2900/00014
Abstract: An acoustic damping device is provided which includes at least one opening for a sealing gas to deflect a grazing gas flow away from the mouth of an acoustic damper.
Abstract translation: 提供了一种声阻尼装置，其包括用于密封气体的至少一个开口，以使放电气流偏离声阻尼器的口。
-
-
-
Search Results
4
records
(took 0.015 seconds)
