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公开(公告)号：US20220243722A1
公开(公告)日：2022-08-04
申请号：US17617044
申请日：2019-06-10
申请人： DRESSER-RAND COMPANY
发明人： Joel T. Sanford
摘要： An improved inlet valve system for a cylinder chamber of a reciprocating compressor and a method for utilizing a high pressure gas source to control an inlet valve system for a cylinder chamber of a reciprocating compressor is disclosed. The inlet valve system may include an unloader, a valve assembly including a cylindrical valve body circumferentially disposed about a central axis of the inlet valve system, and a control valve actuator including a control valve body. The valve assembly may include a plurality of inlet valve elements disposed respectively in valve element ports fluidly connected to a control valve passage. A high pressure gas source is utilized to hold open and close the inlet valve elements via the control valve passage in order to control the capacity of the reciprocating compressor.
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公开(公告)号：US11278860B2
公开(公告)日：2022-03-22
申请号：US17324596
申请日：2021-05-19
申请人： DRESSER-RAND COMPANY
摘要： Chemical reactor (10) and method for cracking are disclosed. A process fluid is accelerated with axial impulse impellers (40A, 40B) to a velocity greater than Mach 1 and, in turn, generating a shock wave (90) in the process fluid by decelerating it in a static diffuser (70) having diverging diffuser passages (72). Temperature increase of the process fluid downstream of the shockwave cracks or splits molecules, such as hydrocarbons entrained in the process fluid, in a single pass, through a unidirectional flow path (F), within a single stage, without recirculating the process fluid for another pass through the same stage. In some embodiments, a system involving at least two turbomachine chemical reactors (110) may provide multiple successive stages of one or more axial impulse impellers (40A, 40B), paired with a diverging passage, static diffuser (70).
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公开(公告)号：US11273423B2
公开(公告)日：2022-03-15
申请号：US17395096
申请日：2021-08-05
申请人： DRESSER-RAND COMPANY
摘要： A turbomachine type chemical reactor for processing a process fluid is presented. The turbomachine type chemical reactor includes at least one impeller section and a stationary diffuser section arranged downstream. The impeller section accelerates the process fluid to a supersonic flow. A shock wave is generated in the stationary diffuser section that instantaneously increases static temperature of the process fluid downstream the shock wave for processing the process fluid. which allows thermally cracking a chemical compound, such as hydrocarbon, in the process fluid. Static pressure of the process fluid is simultaneously increased across the shock wave. The turbomachine type chemical reactor significantly reduces residence time of the process fluid in the chemical reactor and improves efficiency of the chemical reactor.
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公开(公告)号：US20210245127A1
公开(公告)日：2021-08-12
申请号：US17272747
申请日：2019-09-16
申请人： DRESSER-RAND COMPANY
摘要： A turbomachine type chemical reactor for processing a process fluid is presented. The turbomachine type chemical reactor includes at least one impeller section and a stationary diffuser section arranged downstream. The impeller section accelerates the process fluid to a supersonic flow. A shock wave is generated in the stationary diffuser section that instantaneously increases static temperature of the process fluid downstream the shock wave for processing the process fluid. Static pressure of the process fluid is simultaneously increased across the shock wave. The turbomachine type chemical reactor significantly reduces residence time of the process fluid in the chemical reactor and improves efficiency of the chemical reactor.
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公开(公告)号：US20210079908A1
公开(公告)日：2021-03-18
申请号：US17041730
申请日：2018-07-13
申请人： Dresser-Rand Company
发明人： Scott J. Delmotte
摘要： A reciprocating compressor with an improved valve assembly is disclosed. Compressor includes a cylinder block having a cylinder that defines a cylindrical bore extending longitudinally along a bore axis. Cylinder block includes a hollow chamber extending longitudinally along a chamber axis, which is non-intersecting relative to the bore axis. Valve assembly is disposed in hollow chamber. Valve assembly is made up of an axially-stacked arrangement of components extending along chamber axis. The axially-stacked arrangement of components is spaced apart from a wall that forms a perimeter of the cylinder and is thus free from mechanical interference with the perimeter of the cylinder.
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公开(公告)号：US10775111B2
公开(公告)日：2020-09-15
申请号：US16204223
申请日：2018-11-29
申请人： Dresser-Rand Company
发明人： Jason M. Kerth
摘要： A pumped heat energy storage system (11) is provided. A thermodynamic charging assembly (11′) may be configured to compress a working fluid and generate thermal energy. A thermal storage assembly (32) is coupled to charging assembly to store at atmospheric pressure by way of a conveyable bulk solid thermal storage media thermal energy generated by the charging assembly. A thermodynamic discharging assembly (11″) is coupled to the thermal storage assembly to extract thermal energy from the thermal storage assembly and convert extracted thermal energy to electrical energy. A heat exchanger assembly (34) is coupled to the thermal storage assembly. The heat exchanger assembly is arranged to directly thermally couple the conveyable bulk solid thermal storage media that is conveyed to the heat exchanger assembly with a flow of the working fluid that passes through the heat exchanger assembly. Disclosed embodiments can make use of immersed-particle heat exchanger technology and can offer similar roundtrip efficiency and pressure ratio characteristics comparable to those of a recuperated cycle without involving a recuperator and concomitant piping.
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公开(公告)号：US10724430B2
公开(公告)日：2020-07-28
申请号：US16611654
申请日：2018-06-01
申请人： Dresser-Rand Company
发明人： Jason M. Kerth
摘要： A pumped heat energy storage (PHES) system (100) including a charging circuit and a discharging circuit effective to balance or split a total heat rejection of the PHES system between the charging circuit and the discharging circuit. The charging circuit may include thermal storage vessels (102, 104) to store thermal energy generated from a first compressor (110). A first heat rejection system (128) is fluidly coupled with the thermal storage vessels to remove thermal energy from the charging circuit. The discharging circuit may include a first turbine (146) fluidly coupled with the thermal storage vessels to extract thermal energy stored in the thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid. A second heat rejection system (156) is fluidly coupled with the thermal storage vessels and the first turbine to remove thermal energy from the discharging circuit.
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公开(公告)号：US10584709B2
公开(公告)日：2020-03-10
申请号：US15072723
申请日：2016-03-17
申请人： David J. Peer , Paul Morrison Brown , Richard J. Wiederien , Kirk Ryan Lupkes , Brian David Massey , James M. Sorokes , Mark J. Kuzdzal
发明人： David J. Peer , Paul Morrison Brown , Richard J. Wiederien , Kirk Ryan Lupkes , Brian David Massey , James M. Sorokes , Mark J. Kuzdzal
IPC分类号： F04D29/051 , F04D29/42 , F04D29/08 , F04D29/58 , F04D29/28
摘要： A balance piston seal assembly for a balance piston of a compressor is provided. The balance piston seal assembly may include a balance piston seal configured to be disposed about the balance piston such that an inner radial surface of the balance piston seal and an outer radial surface of the balance piston define a radial clearance therebetween. The balance piston seal assembly may also include a plurality of heaters in thermal communication with the balance piston seal and configured to heat and thermally expand the balance piston seal and thereby increase a radial length of the radial clearance.
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公开(公告)号：US10578307B2
公开(公告)日：2020-03-03
申请号：US15250997
申请日：2016-08-30
申请人： Dresser-Rand Company
摘要： A gas turbine assembly and method for operating the gas turbine assembly are provided. The method for operating the gas turbine assembly may include compressing a process fluid containing inlet air through a compressor to produce compressed inlet air, combining fuel from a main fuel source with the process fluid, and preheating the process fluid containing the inlet air and the fuel in a warmer disposed downstream from the compressor. The method may also include heating an oxidizer by flowing the preheated process fluid from the warmer to the oxidizer, and oxidizing the process fluid containing the compressed inlet air and the fuel in the oxidizer to produce an oxidation product. The method may further include expanding the oxidation product in a turbine to generate rotational energy, and preventing the process fluid from flowing upstream to the compressor with a check valve.
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公开(公告)号：US10288111B2
公开(公告)日：2019-05-14
申请号：US15438991
申请日：2017-02-22
申请人： Dresser-Rand Company
发明人： Scott J. Delmotte , Waldo E. Burdick, Jr. , Jonathan Kio , Daniel Brackley , Angus Andrews , Malcolm J. Cliff
摘要： A piston rod assembly for a reciprocating compressor. The piston rod assembly may include a piston rod having a longitudinal axis and forming a piston rod neck and a piston rod shoulder. The piston rod may include a first end integral or coupled with a piston head and a second end axially opposing the first end and configured to couple with a crosshead including a flange. An inner surface of the flange may have a Brinell hardness. The piston rod assembly may also include a cylindrical sleeve disposed circumferentially about the piston rod neck. The cylindrical sleeve may have a lower Brinell hardness than the Brinell hardness of the inner surface of the flange.
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