A HYDROGEN REFUELING STATION WITH LIQUID HYDROGEN SUPPLY

    公开(公告)号:WO2023041133A1

    公开(公告)日:2023-03-23

    申请号:PCT/DK2022/050190

    申请日:2022-09-16

    申请人: NEL HYDROGEN A/S

    IPC分类号: F17C5/00 F17C5/06

    摘要: The invention relates to a hydrogen refueling station comprising a number of heaters, an ejector with a first ejector inlet, a second ejector inlet, and an ejector outlet, a storage tank fluidly connectable to the first and second ejector inlets via the heaters and configured to store liquid hydrogen. Valves are configured to control a flow of the liquid hydrogen in conduits between the storage tank and the heaters and gaseous hydrogen in conduits between the heaters and at least one ejector. Wherein the ejector is configured to receive gaseous hydrogen from at least a first of the plurality of heaters and to simultaneously evacuate gaseous hydrogen from at least a second heater of the plurality of heaters via the second ejector inlet.

    A HYDROGEN REFUELING STATION AND METHOD FOR REFUELING A HYDROGEN VEHICLE

    公开(公告)号:WO2021083471A1

    公开(公告)日:2021-05-06

    申请号:PCT/DK2020/050297

    申请日:2020-10-30

    申请人: NEL HYDROGEN A/S

    IPC分类号: F17C5/06

    摘要: The invention relates to a hydrogen refueling station comprising a first and a second dispensing module comprising first and second dispensing pressure detection means. Supply lines are fluidly connecting a storage module to an inlet compressor line and a compressor outlet line is fluidly connecting an outlet of the compressor to a dispensing line and thereby to the first and / or second dispensing module via output compressor valves. Cascade lines are fluidly connecting the hydrogen storage module and the dispenser modules thereby configured for bypassing the compressor. A controller is configured for controlling valves and thereby a fluid path from the hydrogen storage module to the dispensing modules. The controller is configured for controlling a bypass valve based on feedback from pressure detection means, from a first dispensing pressure detection means or from a second dispensing pressure detection means to establish a required pressure in the compressor outlet line.

    LEAKAGE DETECTION
    3.
    发明申请
    LEAKAGE DETECTION 审中-公开

    公开(公告)号:WO2021078340A1

    公开(公告)日:2021-04-29

    申请号:PCT/DK2020/050252

    申请日:2020-09-14

    申请人: NEL HYDROGEN A/S

    IPC分类号: F17C5/06

    摘要: The invention relates to a method of detecting a leakage in a hydrogen refuelling, the method comprising establishing at a first and a second time a first and a second representation of at least one fluid parameter associated with hydrogen stored in at least one hydrogen storage tank of the hydrogen refuelling station, determining a relative difference between the first and second representation of the at least one fluid parameter, and comparing the relative difference with a threshold difference to detect a leakage. The invention further relates to a hydrogen refuelling station comprising a hydrogen storage module comprising a plurality of hydrogen storage tanks, a hydrogen station module comprising a compressor, and a dispensing module comprising at least one dispensing nozzle, the hydrogen refuelling station comprising at least one controller arranged to control the hydrogen refuelling station and arranged to detect a leakage using the beforementioned method.

    LEAK DETECTION FROM DIAPHRAGM COMPRESSOR
    4.
    发明申请

    公开(公告)号:WO2022002326A1

    公开(公告)日:2022-01-06

    申请号:PCT/DK2021/050200

    申请日:2021-06-22

    申请人: NEL HYDROGEN A/S

    摘要: The invention relates to a diaphragm compressor having a compressor head comprising a hydraulic fluid plate having a fluid plate contact plane and a process fluid plate having a process plate contact plane. The plates form a compression chamber when contact therebetween is established. The compression chamber is divided in an upper chamber and a lower chamber by a multi-layered diaphragm. A controller is configured for controlling an alternating movement of the multi-layered diaphragm towards the upper and the lower chambers respectively. A process fluid plate seal is positioned in a process fluid seal groove provided in the contact plane, the process fluid plate seal forms a process fluid seal between an upper side of the multi-layered diaphragm and the contact plane, and the process fluid plate comprises a process fluid leak groove system fluidly connected to a process fluid plate leakage passage provided in the process fluid plate.

    CONTROL OF A HIGH-PRESSURE COMPRESSOR
    7.
    发明申请

    公开(公告)号:WO2019011384A1

    公开(公告)日:2019-01-17

    申请号:PCT/DK2018/050075

    申请日:2018-04-20

    申请人: NEL HYDROGEN A/S

    摘要: A high-pressure compressor (2) comprises a hydraulic system and a gas chamber (14). The hydraulic system comprises a reservoir (11) connected to a hydraulic fluid chamber (23) by a hydraulic flow path (41) and a pump assembly (30) positioned in the hydraulic flow path (41). The compressor (2) furthermore comprises a control element (8) controlling the flow of hydraulic fluid in the hydraulic flow path (41) and thereby the pressure in the hydraulic fluid chamber (23). Wherein the control element (8) and the pump assembly (30) is configured for controlling the pressure of hydraulic fluid in the hydraulic fluid chamber (23) when the compressor is not in operation.

    LARGE-SCALE HYDROGEN REFUELING STATION
    8.
    发明申请

    公开(公告)号:WO2020147911A1

    公开(公告)日:2020-07-23

    申请号:PCT/DK2020/050020

    申请日:2020-01-16

    申请人: NEL HYDROGEN A/S

    IPC分类号: F17C5/06

    摘要: The invention relates to a large-scale hydrogen refueling station comprising at least one supply storage, a plurality of compressor modules comprising a local controller, a plurality of dispenser modules, and a hydrogen production system comprising a hydrogen production system controller mutually connected by one or more flow paths. Wherein one of the controllers facilitates control of valves and thereby flow of hydrogen gas in the flow paths between the at least one supply storage, compressor modules, dispenser modules and hydrogen production system. Wherein the control of the valves enables flow of hydrogen gas in at least three of the flow paths simultaneously.

    A METHOD AND APPARATUS FOR TESTING A HYDROGEN REFUELING STATION

    公开(公告)号:WO2022258120A1

    公开(公告)日:2022-12-15

    申请号:PCT/DK2022/050112

    申请日:2022-05-25

    申请人: NEL HYDROGEN A/S

    IPC分类号: F17C5/00 F17C5/06 F17C13/02

    摘要: The invention relates to a method of performing a test of a hydrogen refueling station; wherein said method comprises: selecting via a user interface of the said test apparatus a test procedure. Said test procedure includes activating a test fueling controlled by said hydrogen station controller. Said test fueling is controlled based on at least one manipulated control parameter received by said hydrogen station controller from said test apparatus. During said test fueling, the hydrogen station controller operates said hydrogen refueling station according to said manipulated control parameter, thereby forcing one or more control parameters to exceed one or more predefined thresholds for said control parameter that is manipulated. The hydrogen station controller enters a test response mode when at least one of said one or more control parameters exceeds at least one of said one or more predefined thresholds for said control parameter that is manipulated.