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公开(公告)号：US10371158B2
公开(公告)日：2019-08-06
申请号：US14417673
申请日：2013-08-15
Applicant: Dresser-Rand Company
Inventor： James M. Sorokes
Abstract: A system and method are provided for detecting an impending stall or surge in a radial compressor. The system and method may include a plurality of detection devices configured to detect a transition of a low momentum zone of a gas flow through the diffuser from a first position adjacent a shroud wall of the diffuser to a second position adjacent a hub wall of the diffuser. The system and method may also include a control system electrically coupled to the plurality of detection devices and configured to receive a plurality of information signals. Each information signal may be transmitted by a respective one of the plurality of detection devices and may correlate to a location of the low momentum zone. The control system may be configured to process the plurality of information signals and detect the impending stall or surge based on the location of the low momentum zone.
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2.发明申请公开(公告)号：US20160032932A1
公开(公告)日：2016-02-04
申请号：US14417673
申请日：2013-08-15
Applicant: DRESSER-RAND COMPANY
Inventor： James M. Sorokes
CPC classification number: F04D27/001 , F04D17/10 , F04D17/122 , F04D27/0215 , F04D29/441
Abstract: A system and method are provided for detecting an impending stall or surge in a radial compressor. The system and method may include a plurality of detection devices configured to detect a transition of a low momentum zone of a gas flow through the diffuser from a first position adjacent a shroud wall of the diffuser to a second position adjacent a hub wall of the diffuser. The system and method may also include a control system electrically coupled to the plurality of detection devices and configured to receive a plurality of information signals. Each information signal may be transmitted by a respective one of the plurality of detection devices and may correlate to a location of the low momentum zone. The control system may be configured to process the plurality of information signals and detect the impending stall or surge based on the location of the low momentum zone.
Abstract translation: 提供了一种用于检测径向压缩机中即将发生的失速或浪涌的系统和方法。 该系统和方法可以包括多个检测装置，其被配置为检测通过扩散器的气流的低动量区域从与扩散器的护罩壁相邻的第一位置到与扩散器的毂壁相邻的第二位置的过渡 。 系统和方法还可以包括电耦合到多个检测装置并被配置为接收多个信息信号的控制系统。 每个信息信号可以由多个检测装置中的相应一个发送，并且可以与低动量区域的位置相关。 控制系统可以被配置为处理多个信息信号，并且基于低动量区域的位置来检测即将失速或喘振。
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公开(公告)号：US20210040958A1
公开(公告)日：2021-02-11
申请号：US16965684
申请日：2018-02-15
Applicant: Dresser-Rand Company
Inventor： James M. Sorokes , Mark J. Kuzdzal , El Mostafa El Ghazzani , Pascal Lardy
Abstract: Compressors achieve in a single stage a high-pressure ratio (r) of greater than or equal to 2.5:1 on a process fluid having a molecular weight of 12-20, such as natural gas. Two or more of the compressor stages are combined serially to increase overall pressure ratio. Each single-stage includes respective inlet and outlet passages and an unshrouded, centrifugal impeller that includes a plurality of impeller blades. Process fluid is discharged from trailing edges of the impeller blades at a rotational velocity greater than or equal to 1400 feet/second into a diffuser passage of the outlet. Dimension ranges of the annular diffuser passage, the centrifugal impeller, and the diffuser vanes vary as a function of pressure ratio (r) and/or the flow coefficient (φ) of the process fluid flowing between the inlet and the outlet.
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公开(公告)号：US10208768B2
公开(公告)日：2019-02-19
申请号：US15075299
申请日：2016-03-21
Applicant: Dresser-Rand Company
Inventor： David J. Peer , David Andrew Taylor , Brian David Massey , Kirk Ryan Lupkes , Scott David Wisler , James M. Sorokes , Mark J. Kuzdzal
IPC: F04D29/58 , F04D17/10 , F04D25/06 , F04D29/06 , F04D29/10 , F04D29/28 , F04D29/42 , F04D29/44 , F04D29/66 , F04D29/051
Abstract: A compressor may include a casing defining a discharge cavity and a seal cavity. A rotary shaft may be disposed in the casing, and a shaft seal assembly may be disposed in the seal cavity and about the rotary shaft. An impeller may be coupled with and configured to be driven by the rotary shaft. A balance piston may be integral with the impeller and may define the discharge cavity and the seal cavity. A balance piston seal may be disposed about the balance piston such that the balance piston seal and the balance piston define a radial clearance therebetween. The radial clearance may be configured to provide fluid communication from the impeller to the discharge cavity. A heat shield may be disposed in the discharge cavity, and may be configured to prevent the conduction of heat from the discharge cavity to the seal cavity via the casing.
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