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公开(公告)号：US20210388810A1
公开(公告)日：2021-12-16
申请号：US17422619
申请日：2020-02-26
Applicant: Hydrostor Inc.
Inventor： Davin Young , Cameron Lewis
Abstract: A hydrostatically compensated compressed air energy storage system may include an accumulator disposed underground and a compressor/expander subsystem in fluid communication. A compensation shaft may extend between an upper and a lower end and define a shaft depth. An upper end wall can cover the upper end of the shaft. A compensation liquid reservoir can be offset above the upper end wall by a reservoir elevation that is at least about 15% of the shaft depth. A compensation liquid flow path may extend between the compensation liquid reservoir and the accumulator and can include the compensation shaft and a liquid supply conduit extending between the compensation liquid reservoir and the upper end of the compensation shaft whereby a total hydrostatic pressure at the lower end of the shaft is greater than a hydrostatic pressure at a depth that is equal to the shaft depth.
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公开(公告)号：US10859207B2
公开(公告)日：2020-12-08
申请号：US16482667
申请日：2018-01-31
Applicant: Hydrostor Inc.
Inventor： Cameron Lewis , Andrew McGillis , Davin Young , Curtis Vanwalleghem
Abstract: A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.
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公开(公告)号：US12222068B2
公开(公告)日：2025-02-11
申请号：US18377933
申请日：2023-10-09
Applicant: Hydrostor Inc.
Inventor： Daniel Stradiotto , Cameron Lewis , Davin Young , Andrew McGillis
IPC: F17C1/00 , B65G5/00 , F02C6/16 , F02C7/143 , F03D9/17 , F03D9/18 , F17C5/06 , F17C13/02 , F17C13/06 , F28D20/00
Abstract: A thermal storage subsystem may include at least a first storage reservoir configured to contain a thermal storage liquid at a storage pressure that is greater than atmospheric pressure. A liquid passage may have an inlet connectable to a thermal storage liquid source and configured to convey the thermal storage liquid to the liquid reservoir. A first heat exchanger may be provided in the liquid inlet passage and may be in fluid communication between the first compression stage and the accumulator, whereby thermal energy can be transferred from a compressed gas stream exiting a gas compressor/expander subsystem to the thermal storage liquid.
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公开(公告)号：US11767950B2
公开(公告)日：2023-09-26
申请号：US17952747
申请日：2022-09-26
Applicant: Hydrostor Inc.
Inventor： Cameron Lewis , Andrew McGillis , Davin Young , Curtis Vanwalleghem
CPC classification number: F17C1/007 , B65G5/00 , F17C13/06 , F17C2201/052 , F17C2203/066 , F17C2203/0636 , F17C2203/0678 , F17C2221/014 , F17C2221/016 , F17C2221/031 , F17C2223/0123 , F17C2223/035 , F17C2223/043 , F17C2223/047 , F17C2225/013 , F17C2227/0157 , F17C2227/0192 , F17C2270/0142 , F17C2270/0581
Abstract: A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.
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公开(公告)号：US20240218885A1
公开(公告)日：2024-07-04
申请号：US18557477
申请日：2022-04-28
Applicant: Hydrostor Inc.
Inventor： Davin Young , Craig Branch , David Brown
Abstract: A method of operating a hydrostatically compensated compressed air energy storage system comprising to inhibit champagne effect conditions, can include charging the system; changing the system into a storage mode; and before a dissolved gas concentration in a layer of compensation liquid exceeds a champagne effect saturation threshold, operating the system in a dilution cycle mode that can include i) discharging at least a portion of the compressed air from the accumulator thereby drawing additional compensation liquid having a lower dissolved gas concentration than the liquid in the layer of compensation liquid into the accumulator, and ii) re-charging the system by conveying additional compressed air into the layer of compressed air in the accumulator thereby displacing a corresponding amount of compensation liquid from the layer of compensation liquid into a compensation liquid flow path and returning the system to the storage mode.
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Patent Agency Ranking
公开(公告)号：US20230110494A1
公开(公告)日：2023-04-13
申请号：US17429146
申请日：2019-05-22
Applicant: Hydrostor Inc.
Inventor： Cameron Lewis , Andrew McGillis , Davin Young
Abstract: A method of processing a stream of compressed air travelling between a gas compressor/expander subsystem and an underground accumulator in a compressed air energy storage system may include directing a thermal storage liquid through the first liquid flow path in a liquid charging flow direction from a thermal source reservoir toward a thermal storage reservoir whereby at least a portion of the thermal energy in the compressed air is transferred from the compressed air into the thermal storage liquid within the first reversible heat exchanger; including redirecting the compressed air through the first gas flow path in a gas discharging flow direction that is opposite the gas charging flow direction and redirecting the thermal storage liquid through the first liquid flow path in a liquid discharging flow direction whereby at least a portion of the thermal energy in the thermal storage liquid is returned into the compressed air.
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公开(公告)号：US20220196341A1
公开(公告)日：2022-06-23
申请号：US17429155
申请日：2020-02-07
Applicant: Hydrostor Inc.
Inventor： Davin Young , Lucas Thexton , Cameron Lewis
Abstract: A method of temporarily storing thermal energy via a thermal storage subsystem in a compressed air energy storage system comprising an accumulator disposed at least 300 m underground and having an interior configured to contain compressed air at an accumulator pressure that is at least 20 bar and a gas compressor/expander subsystem in communication with the accumulator via an air flow path for conveying compressed air to the accumulator when in a charging mode and from the accumulator when in a discharging mode.
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公开(公告)号：US20220074547A1
公开(公告)日：2022-03-10
申请号：US17526508
申请日：2021-11-15
Applicant: Hydrostor Inc.
Inventor： Daniel Stradiotto , Cameron Lewis , Davin Young , Andrew McGillis
IPC: F17C1/00 , F17C5/06 , F17C13/02 , F17C13/06 , F02C7/143 , F02C6/16 , F03D9/18 , F03D9/17 , B65G5/00 , F28D20/00
Abstract: A thermal storage subsystem may include at least a first storage reservoir configured to contain a thermal storage liquid at a storage pressure that is greater than atmospheric pressure. A liquid passage may have an inlet connectable to a thermal storage liquid source and configured to convey the thermal storage liquid to the liquid reservoir. A first heat exchanger may be provided in the liquid inlet passage and may be in fluid communication between the first compression stage and the accumulator, whereby thermal energy can be transferred from a compressed gas stream exiting a gas compressor/expander subsystem to the thermal storage liquid.
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公开(公告)号：US20210388809A1
公开(公告)日：2021-12-16
申请号：US17422616
申请日：2020-02-06
Applicant: Hydrostor Inc.
Inventor： Davin Young , David Brown , Cameron Lewis , Timothy Ross
Abstract: A method of operating a hydrostatically compensated compressed air energy storage system in a first charging mode including conveying the compressed air at a nearly constant first operating pressure which displaces a corresponding volume of compensation liquid from the layer of compensation liquid out of the accumulator, and a second charging mode including conveying additional compressed air into the accumulator while compensation liquid is not displaced from within the accumulator so that the pressure of the layer of compressed air increases to a second operating pressure that is greater than the first operating pressure.
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公开(公告)号：US20210207771A1
公开(公告)日：2021-07-08
申请号：US17055948
申请日：2019-05-17
Applicant: Hydrostor Inc.
Inventor： Cameron Lewis , Davin Young , Lucas Thexton , Josh Burtney , Timothy Ross
IPC: F17C1/00
Abstract: A hydrostatically compensated compressed air energy storage system may include an accumulator disposed underground, a gas compressor/expander subsystem in fluid communication with the accumulator interior via an air flow path; a compensation liquid reservoir spaced apart from the accumulator and in fluid communication with the layer of compensation liquid within the accumulator via a compensation liquid flow path; and a first construction shaft extending from the surface of the ground to the accumulator and being sized and configured to i) accommodate the passage of a construction apparatus therethrough when the hydrostatically compensated compressed air energy storage system is being constructed, and ii) to provide at least a portion of one of the air flow path and the compensation liquid flow path when the hydrostatically compensated compressed air energy storage system is in use.
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