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公开(公告)号：US20180274550A1
公开(公告)日：2018-09-27
申请号：US15542082
申请日：2016-01-27
Applicant: DRESSER-RAND COMPANY
Inventor： James Jeffrey MOORE , Kevin Michael HOOPES , Stefan David CICH , Jason M. KERTH
CPC classification number: F04D29/4206 , F04D29/444 , F04D29/5826
Abstract: An internally-cooled diaphragm for an internally-cooled compressor is provided. The internally-cooled diaphragm may include an annular body configured to cool a process fluid flowing through a fluid pathway of the internally-cooled compressor. The annular body may define a return channel of the fluid pathway, and a cooling pathway in thermal communication with the fluid pathway. The return channel may be configured to at least partially diffuse and de-swirl the process fluid flowing therethrough, and the cooling pathway may be configured to receive a coolant to absorb heat from the process fluid flowing through the return channel.
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公开(公告)号：US20200165967A1
公开(公告)日：2020-05-28
申请号：US16611654
申请日：2018-06-01
Applicant: DRESSER-RAND COMPANY
Inventor： Jason M. KERTH
Abstract: 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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