Method of adaptively adjusting lift and drag on an airfoil-shaped sail, sail, and wind turbine

    公开(公告)号:US10337493B2

    公开(公告)日:2019-07-02

    申请号:US15788783

    申请日:2017-10-19

    IPC分类号: F03D3/06 F03D3/00 F03D7/06

    摘要: Disclosed is a method of adaptively adjusting lift and drag on an airfoil-shaped sail. The method includes: (1) mounting at least one airfoil-shaped sail body having an airfoil-shaped cross section; (2) defining a Y-shaped air jet channel in the airfoil-shaped sail body; (3) arranging a flow regulating gate in the Y-shaped air jet channel; (4) adjusting the flow regulating gate to automatically adjust the gate opening extent and the cross section opening or closing extent in response to an oncoming flow with a varying direction and speed, to regulate the airflow within the air jet channel and accordingly change the angle of attack, so that the lift and drag on the sail body can be automatically adjusted as the wind speed changes. Further disclosed are an airfoil-shaped sail implementing the above method as well as a vertical-axis wind turbine employing the airfoil-shaped sail.

    Automatic operating device for hollow fiber membrane

    公开(公告)号:US10898859B2

    公开(公告)日:2021-01-26

    申请号:US16242682

    申请日:2019-01-08

    摘要: An automatic operating device for hollow fiber membrane includes a first membrane fiber traction apparatus, a membrane fiber bracket member for fixing the membrane fiber, and a second fiber traction apparatus, which are disposed in sequence. The membrane fiber bracket member comprises a first membrane fiber bracket and a second membrane fiber bracket each having upper openings. The first membrane fiber traction apparatus, the first membrane fiber bracket, the second membrane fiber bracket, and the second membrane fiber traction apparatus are all provided with membrane fiber holes matched with the membrane fiber. The automatic operating device further comprises a membrane fiber grabbing mechanism, a first driving mechanism, a cutting mechanism and a glue-filling mechanism. The present invention can realize the automatic penetration of membrane fiber into the membrane fiber brackets and the traction apparatus, and realize formation of the membrane fiber in a regular arrangement.

    AUTOMATIC OPERATING DEVICE FOR HOLLOW FIBER MEMBRANE

    公开(公告)号:US20200047127A1

    公开(公告)日:2020-02-13

    申请号:US16242682

    申请日:2019-01-08

    IPC分类号: B01D63/02

    摘要: The present invention relates to an automatic operating device for hollow fiber membrane. The automatic operating device comprises a first membrane fiber traction apparatus, a membrane fiber bracket member for fixing the membrane fiber, and a second fiber traction apparatus, which are disposed in sequence. The membrane fiber bracket member comprises a first membrane fiber bracket and a second membrane fiber bracket each having upper openings. The first membrane fiber traction apparatus, the first membrane fiber bracket, the second membrane fiber bracket, and the second membrane fiber traction apparatus are all provided with membrane fiber holes matched with the membrane fiber. The automatic operating device further comprises a membrane fiber grabbing mechanism, a first driving mechanism, a cutting mechanism and a glue-filling mechanism. The present invention can realize the automatic penetration of membrane fiber into the membrane fiber brackets and the traction apparatus, and realize formation of the membrane fiber in a regular arrangement. The whole process has fewer manual intervention and less consumables, and produces modules with higher quality; and it can be applied to the manufacturing of various membrane separation modules.

    Distributed energy source system utilizing waste heat deeply

    公开(公告)号:US11802058B2

    公开(公告)日:2023-10-31

    申请号:US17685393

    申请日:2022-03-03

    摘要: The present invention relates to a distributed energy source system utilizing waste heat deeply. The distributed energy source system utilizing waste heat deeply comprises a primary waste heat recycling module, a membrane distillation type seawater desalination module and a membrane type thermoosmosis power generation module. The distributed energy source system utilizing waste heat deeply provided by the present invention can recycle and deeply utilize waste heat and moisture in flue gas by means of the primary waste heat recycling module, the membrane distillation type seawater desalination module and the membrane type thermoosmosis power generation module to realize functions of seawater desalination and low-temperature power generation, has high energy utilization ratio and improves the waste heat utilization efficiency.

    VARIABLE-DIAMETER SPINNING NOZZLE AND PROCESSING DEVICES FOR HOLLOW FIBER MEMBRANE BUNDLE AND MEMBRANE MODULE

    公开(公告)号:US20200070100A1

    公开(公告)日:2020-03-05

    申请号:US16370641

    申请日:2019-03-29

    摘要: The present invention relates to a variable-diameter spinning nozzle, processing devices for hollow fiber membrane bundle and membrane module. The variable-diameter spinning nozzle comprises a center round tube, a middle round tube and an external chamber which are sequentially nested, and a first drive mechanism for driving the middle round tube to move vertically upwards and downwards. The bottoms of the center round tube, the middle round tube and the external chamber are leveled. The variable-diameter spinning nozzle provided by present invention obtains membrane fiber by adjusting the location of the middle round tube, and this membrane fiber involves membrane fiber heads with relatively large diameter on both ends and a membrane fiber middle section with relatively small diameter. In the subsequent process of binding and assembly of membrane module, porosity of the membrane fiber middle section can be adjusted by controlling a diameter ratio of the membrane fiber head to the membrane fiber middle section, and thus arbitrary fill density and regular arrangement of membrane module are achieved.