公开(公告)号：US11768014B2

公开(公告)日：2023-09-26

申请号：US17255908

申请日：2020-06-29

申请人： Carrier Corporation

发明人： Vishnu M. Sishtla ,  Lei Yu

IPC分类号： F04D27/02 ,  F25B1/053 ,  F04D17/12 ,  F04D5/00

CPC分类号： F25B1/053 ,  F04D5/003 ,  F04D17/12 ,  F04D27/0207 ,  F04D27/0269 ,  F05D2260/80 ,  F05D2270/101

摘要： A coolant system includes a multistage compressor having a plurality of surge detection sensors. A condenser is connected to an outlet of the multistage compressor. An economizer is connected to an outlet of the condenser and has a gaseous coolant outlet and a liquid coolant outlet. The liquid coolant outlet is connected to a cooler and the gaseous coolant outlet is connected to a second or later stage of the multistage compressor via a controllable valve. A controller is communicatively coupled to the surge detection sensors and the controllable valve. The controller includes a non-transitory medium storing instructions for causing the controller to detect an occurrence of a surge and restricting a flow through the controllable valve until the surge has ceased.

公开(公告)号：US20190211742A1

公开(公告)日：2019-07-11

申请号：US16356034

申请日：2019-03-18

申请人： MTU FRIEDRICHSHAFEN GMBH

发明人： Andreas HOHNER ,  Konstantin RUNDEL

IPC分类号： F02B37/007 ,  F02B37/22

CPC分类号： F02B37/007 ,  F02B37/12 ,  F02B37/225 ,  F02B2037/122 ,  F02B2037/125 ,  F04D27/0253 ,  F04D27/0269 ,  Y02T10/144

摘要： In an internal combustion engine with exhaust gas turbochargers which operate in parallel and of which at least one can be switched on and off by a charge air duct blocking arrangement including a charge air duct blocking element, the charge air duct blocking arrangement is adapted to provide for a certain movement characteristic of the charge air duct blocking element resulting in a slower movement of the charge air duct blocking element resulting in a longer duration for the air duct blocking element to reach its open position and a faster movement during closing resulting in a rapid closing of the charge air duct blocking element.

公开(公告)号：US09316559B2

公开(公告)日：2016-04-19

申请号：US13813575

申请日：2011-07-20

申请人： Ulrich Döbler

发明人： Ulrich Döbler

IPC分类号： G01M3/26 ,  F04D19/04 ,  G01M3/20 ,  F04D27/02

CPC分类号： G01M3/26 ,  F04D19/046 ,  F04D27/0269 ,  G01M3/205

摘要： The leak detection appliance has a test inlet to which a test chamber containing the test specimen can be connected. A high-vacuum pump produces a high vacuum in a test gas detector. A backing pump contains two pump stages. In order to evacuate the test chamber, the pump stages are operated in parallel mode, with their suction capabilities being added. When the necessary vacuum has been achieved, the pump stages are operated in series in order to produce the necessary high vacuum which is required for high detection sensitivity on the test gas detector.

摘要翻译： 泄漏检测装置具有可以连接包含测试样本的测试室的测试入口。 高真空泵在测试气体检测器中产生高真空。 背衬泵包含两个泵级。 为了抽空试验室，泵级以并联方式操作，并附加吸力。 当已经实现必要的真空时，泵级被串联操作，以便产生为测试气体检测器的高检测灵敏度所需的必要的高真空度。

公开(公告)号：US20150147193A1

公开(公告)日：2015-05-28

申请号：US14089471

申请日：2013-11-25

申请人： Woodward, Inc.

发明人： Walter Grassens ,  Brian Eldredge

IPC分类号： F04D27/00 ,  G05B15/02

CPC分类号： F04D27/005 ,  F04D25/16 ,  F04D27/002 ,  F04D27/004 ,  F04D27/0246 ,  F04D27/0253 ,  F04D27/0261 ,  F04D27/0269 ,  F04D29/444 ,  F04D29/542 ,  G05B15/02

摘要： In some aspects, a compressor system includes a compressor train including two or more compressors connected in series and a control mechanism. The control mechanism is controlled by a performance controller. The performance controller is operable to identify a process variable of the performance controller; receive, on a recurrent basis from a load sharing controller, a setpoint for the process variable of the performance controller; and control the control mechanism based on the setpoint and the process variable of the performance controller. The setpoint is determined dynamically during operation of the two or more compressors by the load sharing controller based on a load sharing parameter associated with the two or more compressors.

摘要翻译： 在一些方面，压缩机系统包括包括串联连接的两个或更多个压缩机和控制机构的压缩机组。 控制机构由性能控制器控制。 性能控制器可操作以识别性能控制器的过程变量; 从负载共享控制器经常地接收用于性能控制器的过程变量的设定值; 并根据性能控制器的设定值和过程变量控制控制机构。 基于与两个或更多个压缩机相关联的负载共享参数，由负载共享控制器在两个或多个压缩机的操作期间动态地确定设定点。

公开(公告)号：US20120055184A1

公开(公告)日：2012-03-08

申请号：US13202483

申请日：2010-03-30

申请人： Kenji Ueda

发明人： Kenji Ueda

IPC分类号： F25B49/02 ,  F25B1/04

CPC分类号： F04D25/16 ,  F04D27/0261 ,  F04D27/0269 ,  F25B1/053 ,  F25B49/022 ,  F25B2400/075 ,  F25B2400/0751 ,  F25B2600/021 ,  Y02B30/741

摘要： Provided is a centrifugal-chiller including one variable-speed centrifugal-compressor and one constant-speed centrifugal-compressor and capable of high-efficiency operation. A centrifugal-chiller comprising a variable-speed centrifugal-compressor whose rotational frequency can be varied by an inverter and which compresses a refrigerant; a constant-speed centrifugal-compressor connected in parallel with the variable-speed centrifugal-compressor and operated at a constant rotational speed to compress the refrigerant; and a control unit that controls the operations of the variable-speed centrifugal-compressor and the constant-speed centrifugal-compressor, wherein in the case where a required load factor of the centrifugal-chiller is less than a predetermined value, the control unit selects a variable-speed-compressor priority operating mode in which only the variable-speed centrifugal-compressor is activated, and in the case where the required load factor of the centrifugal-chiller is the predetermined value or greater, the control unit selects a combined-use operating mode in which the variable-speed centrifugal-compressor and the constant-speed centrifugal-compressor are activated.

摘要翻译： 本发明提供一种离心式冷水机，包括一台可变速离心式压缩机和一台恒速离心式压缩机，能够高效运转。 一种离心式冷水机，其特征在于，具备：变频离心式压缩机，其转速可以通过变换器变化并压缩制冷剂; 与变速离心式压缩机并联连接的恒速离心式压缩机，以恒定的转速运转，压缩制冷剂; 以及控制单元，其控制所述变速离心式压缩机和所述恒速离心式压缩机的运转，其中，在所述离心式冷水机的所需负荷系数小于预定值的情况下，所述控制单元选择 其中只有变速离心式压缩机被启动的可变速压缩机优先操作模式，并且在离心冷却器的所需负载系数为预定值或更大的情况下，控制单元选择组合 - 使用变速离心压缩机和恒速离心压缩机启动的运行模式。

公开(公告)号：US20110126584A1

公开(公告)日：2011-06-02

申请号：US13056161

申请日：2009-07-02

申请人： Frederick Jan Van Dijk

发明人： Frederick Jan Van Dijk

IPC分类号： F25J1/02

CPC分类号： F04D27/0269 ,  F25J1/0022 ,  F25J1/0035 ,  F25J1/0247 ,  F25J1/0248 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0295 ,  F25J2205/04 ,  F25J2220/64 ,  F25J2230/24 ,  F25J2230/60 ,  F25J2240/04 ,  F25J2280/10 ,  F25J2280/20

摘要： Method and apparatus for treating a mixed hydrocarbon feed stream (10), such as a natural gas stream. The mixed hydrocarbon feed stream (10) is expanded into a mixed-phase hydrocarbon stream (20), which is separated the to provide at least a light overhead stream (30) and a heavy bottom stream (50). The light overhead stream (30) is compressed in one or more first compressors (16) to provide one or more first compressed light streams (40) and further compressed in one or more second compressors (22) to provide one or more further compressed light streams (60). One or more first compressor recycle lines (42) extend around the or each first compressor (16), and one or more second compressor recycle lines (32) having one or more in-line coolers (34) extend around the or each second compressor (22). The method and apparatus may be used in a method of cooling an initial hydrocarbon stream (100).

摘要翻译： 用于处理混合烃进料流（10）的方法和装置，例如天然气流。 将混合烃进料流（10）膨胀成混合相烃流（20），其被分离以提供至少轻的塔顶流（30）和重的底部流（50）。 光塔顶流（30）在一个或多个第一压缩机（16）中被压缩以提供一个或多个第一压缩光流（40），并在一个或多个第二压缩机（22）中进一步压缩以提供一个或多个另外的压缩光 流（60）。 一个或多个第一压缩机循环管线（42）围绕所述或每个第一压缩机（16）延伸，并且具有一个或多个在线冷却器（34）的一个或多个第二压缩机循环管线（32）围绕所述或每个第二压缩机 （22）。 该方法和装置可用于冷却初始烃流（100）的方法。

公开(公告)号：US07797945B2

公开(公告)日：2010-09-21

申请号：US11517139

申请日：2006-09-06

申请人： Andrew Appleby ,  Charles E. Kesner ,  Todd C. Garrod ,  Joel E. LaBenz

发明人： Andrew Appleby ,  Charles E. Kesner ,  Todd C. Garrod ,  Joel E. LaBenz

IPC分类号： F01D25/00

CPC分类号： F04D27/0215 ,  F02C6/08 ,  F02C9/18 ,  F02K3/075 ,  F04D27/0269 ,  F05D2250/241

摘要： A bleed valve assembly for discharging bleed air into a gas turbine engine bypass plenum includes a bleed flow duct, a bleed valve, and a flow deflector. The bleed flow duct is contoured such that it delivers uniformly flowing bleed air to the flow deflector when the bleed valve is in the open position. The flow deflector has a plurality of openings formed therein. Each opening fluidly communicates the bleed air flow passage with the bypass plenum. A portion of the openings are oriented at a discharge angle such that bleed air is discharged from each opening in a direction that does not have a vector component in the direction in which air is flowing in the bypass plenum, and another portion of the openings are oriented to provide stress relief to the deflector.

摘要翻译： 用于将排放空气排放到燃气涡轮发动机旁路增压室中的放气阀组件包括排放流道，放气阀和导流器。 排放流道的轮廓是这样的，使得当放气阀处于打开位置时，其将均匀流动的排出空气输送到导流器。 导流板在其中形成有多个开口。 每个开口将排出气流通道与旁路增压室流体连通。 开口的一部分以排出角度定向，使得排出空气沿着空气在旁路增压室中流动的方向上不具有矢量分量的方向从每个开口排出，另一部分开口是 定向以向偏转器提供应力消除。

公开(公告)号：US20100198409A1

公开(公告)日：2010-08-05

申请号：US12364374

申请日：2009-02-02

申请人： Thomas B. Hartman

发明人： Thomas B. Hartman

IPC分类号： G05B15/00

CPC分类号： F25B1/053 ,  F04D27/0261 ,  F04D27/0269 ,  F04D27/0284 ,  F25B49/027 ,  F25B2400/06 ,  F25B2500/26 ,  F25B2500/27 ,  F25B2600/0253 ,  Y02B30/741

摘要： An improved method for sequencing variable speed centrifugal compressors on and off line to ensure optimal operating efficiency in a liquid cooling system under all operating circumstances is described. The present disclosure teaches modifying equipment sequencing decisions (to add or shed a unit), based in part on the position of the compressor inlet vanes. This new approach achieves improved energy efficiency of the overall system by taking into account operating conditions of individual compressors or chillers that may be sub-optimal.

摘要翻译： 描述了一种改进的在线和离线式变速离心压缩机进行排序的方法，以确保在所有操作环境下液体冷却系统的最佳运行效率。 本公开教导了部分地基于压缩机入口叶片的位置来修改设备排序决定（以添加或排出单元）。 这种新方法通过考虑可能是次优的单个压缩机或冷却器的操作条件来实现整个系统的能量效率的提高。

公开(公告)号：US20100024456A1

公开(公告)日：2010-02-04

申请号：US12442562

申请日：2007-11-09

申请人： Kenji Ueda ,  Yoshinori Shirakata

发明人： Kenji Ueda ,  Yoshinori Shirakata

IPC分类号： F25B49/02 ,  F25B1/00 ,  G05D23/00 ,  G05D7/00

CPC分类号： F04D27/0269

摘要： A turbo chiller equipped with a high-efficiency two-stage turbo compressor is provided. In a turbo chiller including a control unit for controlling the degrees of opening of first inlet guide vanes of a first impeller and second inlet guide vanes of a second impeller, the control unit has a slave mode in which the second inlet guide vanes are operated so as to be dependent on the first inlet guide vanes in a slave-mode priority region, and an independent mode in which the degree of opening of the second inlet guide vanes is increased independently of the first inlet guide vanes in an independent-mode priority region.

摘要翻译： 提供配备有高效率两级涡轮压缩机的涡轮式制冷机。 在包括用于控制第一叶轮的第一入口导向叶片的开度和第二叶轮的第二入口导向叶片的开度的控制单元的涡轮冷冻机中，所述控制单元具有从动模式，其中所述第二入口导叶被运行 取决于从属模式优先区域中的第一入口引导叶片和独立模式，其中在独立模式优先区域中独立于第一入口引导叶片的第二入口导向叶片的打开程度增加 。

公开(公告)号：US20040025523A1

公开(公告)日：2004-02-12

申请号：US10619640

申请日：2003-07-15

申请人： York International Corporation

发明人： Mark Robinson Bodell II ,  Wanda Jean Miller

IPC分类号： F25B041/00 ,  F25B049/00 ,  F25B001/00

CPC分类号： F25B49/022 ,  F04D27/0253 ,  F04D27/0269 ,  F25B1/053 ,  F25B2400/075

摘要： A control system is provided to maintain stable operating conditions for centrifugal compressors operating in parallel when one of the centrifugal compressors enters into an unstable operating condition. The control system determines an unstable operating condition in response to signals indicating the motor current or power consumption of each compressor and the position of the pre-rotation vanes of the compressors. Once an unstable operating condition is determined, the control system closes the pre-rotation vanes to each compressor until the unstable operating condition has been corrected.

摘要翻译： 提供一种控制系统，用于当离心式压缩机之一进入不稳定的运行状态时，保持离心压缩机平行运行的稳定运行条件。 控制系统响应于指示每个压缩机的电机电流或功率消耗的信号和压缩机的预旋转叶片的位置来确定不稳定的操作条件。 一旦确定了不稳定的操作条件，则控制系统将预旋转叶片关闭到每个压缩机直到不稳定的操作条件被校正。