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    Ejector and refrigerating system
    2.
    发明授权
    Ejector and refrigerating system 有权

    公开(公告)号：US11460124B2

    公开(公告)日：2022-10-04

    申请号：US16814297

    申请日：2020-03-10

    Applicant: Carrier Corporation

    Inventor： Sheng Li ,  Xinyu Wu

    IPC: F16K31/165 ,  F25B9/08 ,  F16K17/02 ,  F25B41/00

    Abstract: An ejector and a refrigeration system. The ejector includes: a high-pressure fluid passage, a flow valve for controlling a flow rate in the high-pressure fluid passage; a suction fluid passage; a mixing chamber, which includes a mixed fluid outlet; a thermal bulb disposed upstream of the flow valve, in the high-pressure fluid passage or outside the high-pressure fluid passage; and an elastic diaphragm disposed in the high-pressure fluid passage, wherein a closed cavity is on a first side of the diaphragm, and the high-pressure fluid passage is on a second side of the diaphragm; the thermal bulb in communication with the closed cavity, and the thermal bulb and the closed cavity are filled with fluid; and the diaphragm is associated with the flow valve so that an opening degree of the flow valve varies in response to a change in a pressure difference across two sides of the diaphragm.

    Ejector and refrigeration system
    3.
    发明授权
    Ejector and refrigeration system 有权

    公开(公告)号：US11365915B2

    公开(公告)日：2022-06-21

    申请号：US16811742

    申请日：2020-03-06

    Applicant: Carrier Corporation

    Inventor： Sheng Li ,  Xinyu Wu

    IPC: F25B41/30 ,  F25B5/02

    Abstract: An ejector and a refrigeration system. The ejector includes: a high-pressure fluid passage extending from a high-pressure fluid inlet to a mixing chamber; a suction fluid passage extending from a suction fluid inlet to the mixing chamber, a first valve being disposed in the suction fluid passage; the mixing chamber, which includes a mixed fluid outlet; and a thermal bulb arranged in the suction fluid passage downstream of the first valve; wherein an elastic diaphragm is disposed in the suction fluid passage, the suction fluid passage is on a first side of the elastic diaphragm, and a closed cavity is on a second side of the elastic diaphragm; the thermal bulb is in communication with the closed cavity, and the thermal bulb and the closed cavity are filled with fluid.

    Device and method for chiller plant management, computer readable storage device and chiller plant
    5.
    发明授权
    Device and method for chiller plant management, computer readable storage device and chiller plant 有权

    公开(公告)号：US11739998B2

    公开(公告)日：2023-08-29

    申请号：US17058391

    申请日：2019-07-02

    Applicant: Carrier Corporation

    Inventor： Sheng Li

    IPC: F25B49/02 ,  F25B25/00 ,  F25B1/10

    CPC classification number: F25B49/022 ,  F25B25/005 ,  F25B1/10 ,  F25B2339/047 ,  F25B2400/06

    Abstract: The present disclosure concerns a device and a method for chiller station management for providing chilled water to a load (30), a computer storage medium and a chiller station. The method for chiller station management includes: determining whether a chiller (10) with a low load exists in a chiller station and determining whether to allow to shut down one chiller (10) in the chiller station, when a certain chiller (10) in the chiller station transmits a surge risk signal; if yes, shutting down one chiller (10) in the chiller station to increase loads of other chillers (10); and if no, raising a chiller (10) outlet water temperature in the chiller station and/or lowering a cooling tower (20) outlet water temperature in the chiller station. The device and method for chiller station management according to the present disclosure provide a surge protection at a chiller station level, thereby effectively avoiding occurrence of surge in the chiller, and improving the efficiency and operation stability of the chiller station.

    ANALYTICS BASED CHILLER SEQUENCING
    7.
    发明申请
    ANALYTICS BASED CHILLER SEQUENCING 审中-公开

    公开(公告)号：US20200025407A1

    公开(公告)日：2020-01-23

    申请号：US16515092

    申请日：2019-07-18

    Applicant: Carrier Corporation

    Inventor： Keunmo Kang ,  Sheng Li ,  Xing Cai ,  Xinyu Wu ,  Marcin Cychowski

    IPC: F24F11/75 ,  F24F11/38 ,  G06F16/2457 ,  G05D23/19

    Abstract: Embodiments include a system and method for performing analytics based chiller sequencing. Embodiments include a plurality of chillers, a system controller configured to control the plurality of chillers, and one or more sensors in communication with the controller, the one or more sensors configured to generate operational data based on measured operational parameters of the plurality of chillers. Embodiments include the controller including a processor configured to obtain the operational data, calculate scores for each of the plurality of chillers based on the operational data, and rank the plurality of chillers based on the scores. The processor is further configured to sequence the plurality of chillers based at least in part on the ranking, and control operation of the plurality of chillers based on the sequencing.

    COORDINATED AIR-SIDE CONTROL OF HVAC SYSTEM
    9.
    发明申请
    COORDINATED AIR-SIDE CONTROL OF HVAC SYSTEM 有权
    协调空调系统的空气侧控制

    公开(公告)号：US20150057811A1

    公开(公告)日：2015-02-26

    申请号：US14386479

    申请日：2013-03-08

    Applicant: Carrier. Corporation

    Inventor： Junqiang Fan ,  Sheng Li ,  Stevo Mijanovic ,  Anthony Sari ,  Olivier Josserand

    IPC: F24F11/00 ,  G05B19/05 ,  G05D7/06

    CPC classification number: F24F11/89 ,  F24F11/30 ,  F24F11/65 ,  F24F11/77 ,  F24F11/83 ,  F24F2110/30 ,  G05B19/052 ,  G05B2219/2614 ,  G05D7/0617 ,  Y02B30/746

    Abstract: A method and apparatus for controlling an HVAC system. The method may include receiving a fan speed signal from a fan control loop, and choosing among an independent mode, a first linked mode, and a second linked mode, depending on the fan speed signal. The method may also include providing a signal to a pressure control loop to reduce a speed of a supply air fan of an AHU, when the first linked mode is chosen. The method may further include providing a signal to a temperature control loop to decrease a speed of a heat exchange wheel, to decrease a flow rate of a heat exchange fluid to an evaporator coil, or both, when the second linked mode is chosen. The method may additionally include allowing the fan control loop to operate independently of the temperature and pressure control loops, when the independent mode is chosen.

    Abstract translation: 一种用于控制HVAC系统的方法和装置。 该方法可以包括从风扇控制环路接收风扇速度信号，并且根据风扇速度信号在独立模式，第一链接模式和第二链接模式之间进行选择。 当选择第一连接模式时，该方法还可以包括向压力控制回路提供信号以降低AHU的供气风扇的速度。 该方法可以进一步包括当选择第二链接模式时，向温度控制回路提供信号以降低热交换轮的速度，以降低热交换流体到蒸发器线圈或两者的流量。 当选择独立模式时，该方法还可以包括允许风扇控制回路独立于温度和压力控制回路工作。

    METHOD AND SYSTEM FOR DETECTING A FAILURE IN HVAC SYSTEM, AND MEMORIZER
    10.
    发明申请
    METHOD AND SYSTEM FOR DETECTING A FAILURE IN HVAC SYSTEM, AND MEMORIZER 有权

    公开(公告)号：US20210199325A1

    公开(公告)日：2021-07-01

    申请号：US17058411

    申请日：2019-07-02

    Applicant: Carrier Corporation

    Inventor： Xinyu Wu ,  Sheng Li

    IPC: F24F11/38 ,  F24F11/64 ,  F24F11/58

    Abstract: The invention relates to a method, a system and a storage for detecting a fault of a HVAC system. The method comprises the steps of: obtaining room air temperatures and compressor equivalent runtime during the operation of the HVAC system; calculating a rate of change per unit time of the room air temperatures within the compressor equivalent runtime; and determining whether a fault occurs in the HVAC system based on a change in the rate of change per unit time of the room air temperatures. The invention can be applied to a HVAC system for an on-line fault detection, which is able to effectively detect a series of faculties and may output information such as an alert to help to increase the security and the user satisfaction of the HVAC system.

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