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公开(公告)号：US20240401852A1
公开(公告)日：2024-12-05
申请号：US18695757
申请日：2022-08-29
Inventor： Xiuping Su , Lu Mei , Xiaokui Ma , Li Wang
IPC: F25B39/02
Abstract: The present application provides a falling film evaporator. The falling film evaporator comprises a housing, a gas outlet, a cover, a gas flow channel, and a plurality of flow guide members. The housing has a length direction and a height direction, and the housing defines an accommodating cavity. The gas outlet is provided at the upper portion of the accommodating cavity. The cover is provided in the accommodating cavity and defines a cover accommodating cavity, the cover accommodating cavity has a lower cover opening located below, and the cover accommodating cavity is configured to accommodate at least one part of a heat exchange tube bundle. The gas flow channel is located between the housing and the cover and enables the lower cover opening of the cover accommodating cavity to be in communication with the gas outlet. The plurality of flow guide members are arranged in the gas flow channel along the height direction of the housing. Here, in the height direction of the housing, one of two adjacent flow guide members is connected to the housing and is separated from the cover by a certain distance, and the other of the two adjacent flow guide members is connected to the cover and is separated from the housing by a certain distance. The falling film evaporator in the present application has the advantage of being high in gas-liquid separation efficiency, and the machining process of the flow guide members of the falling film evaporator is simple.
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公开(公告)号：US20240384773A1
公开(公告)日：2024-11-21
申请号：US18695787
申请日：2022-09-08
Inventor： Qinghua Tang , Kun Lin , Xiaokui Ma , Pu Zhou
Abstract: A vibration frequency adjustment system, comprising a vibratable component (102), at least one counterweight (401, 402), at least one drive device (407, 408), and a controller (307). The vibratable component (102) is configured to be connected to a vibration source (101). The vibration source (101) has an operating frequency range, and the vibratable component (102) has a natural vibration frequency. The at least one counterweight (401, 402) is configured to be movable along the vibratable component (102). The at least one drive device (407, 408) is configured to enable the at least one counterweight (401, 402) to be maintained at or moved to various counterweighting positions (421, 422, 423) on the vibratable component (102). The controller (307) is communicatively connected to the at least one drive device (407, 408). The vibration frequency adjustment system is used for a variable-frequency screw unit so as to reduce the vibration of an exhaust pipe.
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公开(公告)号：US20240085069A1
公开(公告)日：2024-03-14
申请号：US18272037
申请日：2022-01-06
Applicant: York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Tyco IP Holdings LLP
Inventor： Xiuping Su , Yong Wang
CPC classification number: F25B39/028 , F28D3/02 , F28F2009/222
Abstract: The present application provides an evaporator, comprising: a housing, a first heat exchange tube set, a second heat exchange tube set, a first side heat exchange tube baffle device, a second side heat exchange tube baffle device, and a redistribution device. The first heat exchange tube set is located above the second heat exchange tube set, and the number of columns of the first heat exchange tube set is greater than that of the second heat exchange tube set. The first side heat exchange tube baffle device and the second side heat exchange tube baffle device are respectively disposed on two opposite sides of the first heat exchange tube set and the second heat exchange tube set, and are arranged along the outer contours of the first heat exchange tube set and the second heat exchange tube set, so as to guide a refrigerant to flow from the first heat exchange tube set to the second heat exchange tube set. The redistribution device is disposed between the first heat exchange tube set and the second heat exchange tube set to evenly distribute the refrigerant to the second heat exchange tube set. The evaporator in the present application has higher heat exchange efficiency.
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公开(公告)号：US20200240680A1
公开(公告)日：2020-07-30
申请号：US16651800
申请日：2018-09-28
Applicant: YORK (WUXI) AIR CONDITIONING AND REFRIGERATION CO., LTD. , Johnson Controls Technology Company
Inventor： Lue Lv , Hongsheng Chen , Qian Hu
Abstract: A heat pump unit and methods for operating the heat pump unit are provided. The heat pump unit includes a compressor (101), a throttling device (107), a first heat exchanger (104), a second heat exchanger (102), a third heat exchanger (103) and a mid-pressure tank (110). The heat pump unit operates in multiple run modes and switches between the run modes without shutdown. The first heat exchanger or the second heat exchanger is capable of acting as a condenser in the multiple run modes. When switching from a pre-switching run mode to a post-switching run mode, a control device determines whether to perform a pressure release operation to the first heat exchanger or the second heat exchanger.
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公开(公告)号：US20190203882A1
公开(公告)日：2019-07-04
申请号：US16325685
申请日：2017-08-16
Applicant: Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. , York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Technology Company
Inventor： Jing Li , Tianlong Xiao , Jinliang Li
CPC classification number: F16N23/00 , F16N7/40 , F16N29/00 , F16N2210/10 , F16N2250/18 , F16N2280/00 , F25B31/002 , F25B31/004 , F25B43/003 , F25B2500/16 , F25B2700/03
Abstract: The present disclosure relates to an oil flow switch, comprising a float device connected to a circulating oil passage and a floating liquid level switch element provided in the float device, wherein the float device comprises an oil inlet, an oil outlet, and a float chamber provided between the oil inlet and the oil outlet, the floating liquid level switch element is provided in the float chamber, and the float device is provided with a channel in communication with the float chamber. The oil flow switch according to the present disclosure may avoid a false alarm of the oil level switch and meanwhile mitigate disturbance to the float caused by liquid level fluctuation to reduce friction between the float and the sleeve rod. Further, a lubrication system with the above oil
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Patent Agency Ranking
公开(公告)号：US20160377331A1
公开(公告)日：2016-12-29
申请号：US15071413
申请日：2016-03-16
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY , YORK (WUXI) AIR CONDITIONING AND REFRIGERATION CO. , LTD.
Inventor： Xiuping SU , Li WANG
CPC classification number: F25B39/00 , C09K5/044 , F25B39/028 , F25B2339/046 , F25B2339/047 , F25B2500/18 , F28D3/02 , F28D3/04 , F28D5/02 , F28D2021/0066 , F28D2021/007 , F28D2021/0071 , F28F25/04 , F28F25/06 , F28F27/00 , F28F2250/06
Abstract: A condensation and falling film evaporation hybrid heat exchanger is provided, including a shell, a condenser entrance pipe connected to a compressor discharge port, and an evaporator exit pipe connected to a compressor suction port being disposed respectively on the shell. A baffle plate is disposed at a position inside the shell corresponding to the condenser entrance pipe. A refrigerant distributor is disposed in the shell, a condensing tube bundle being disposed above the refrigerant distributor, and a falling film evaporating tube bundle being disposed below the refrigerant distributor. The condensation and falling film evaporation hybrid heat exchanger according to this invention can be used in concert with low-pressure refrigerant, thus efficiently solving the problem of refrigerant distribution with the falling film evaporator using low-pressure refrigerant.
Abstract translation: 提供了一种冷凝和降膜蒸发混合式热交换器，其包括壳体，连接到压缩机排出口的冷凝器入口管和连接到分别设置在壳体上的压缩机吸入口的蒸发器出口管。 挡板设置在与冷凝器入口管相对应的壳体内的位置处。 制冷剂分配器设置在壳体中，冷凝管束设置在制冷剂分配器上方，降膜蒸发管束设置在制冷剂分配器下方。 根据本发明的冷凝和降膜蒸发混合式热交换器可以与低压制冷剂协同使用，从而通过使用低压制冷剂的降膜蒸发器有效地解决了制冷剂分配的问题。
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公开(公告)号：US20240393023A1
公开(公告)日：2024-11-28
申请号：US18696926
申请日：2022-09-05
Inventor： Xiuping Su , Fang Xue , Lu Mei , Kun Lin
IPC: F25B41/40
Abstract: Disclosed in the present application are an economizer and a refrigeration system comprising same. The economizer comprises: an outer shell that internally comprises a heat exchange cavity and a gas-liquid separation cavity; and a heat exchange tube bundle provided in the heat exchange cavity. The economizer is configured to enable refrigerants from a condenser to be subjected to heat exchange in the heat exchange cavity first, and then to be subjected to gas-liquid separation in the gas-liquid separation cavity after passing through a first-stage throttling device, such that gas refrigerants flow out of a gas outlet of the gas-liquid separation cavity, and liquid refrigerants flow out of a liquid outlet of the gas-liquid separation cavity. According to the economizer of the present application, the heat exchange cavity and the gas-liquid separation cavity are provided in the shell, the gas-liquid separation function of the economizer can be achieved, the heat exchange function of a subcooler can also be achieved, such that the structure of the two-stage compression refrigeration system with the function requirements of the subcooler can be more compact.
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公开(公告)号：US20240125529A1
公开(公告)日：2024-04-18
申请号：US18272039
申请日：2022-01-06
Applicant: York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Tyco IP Holdings LLP
Inventor： Xiuping Su , Li Wang , Bin Yuan , Chenggang Wu
CPC classification number: F25B49/02 , G01N21/59 , F25B2500/28
Abstract: A measurement apparatus (100), which is arranged on a pipe (101), and is configured to measure the liquid content of a medium within the pipe (101); said apparatus comprises: a light transmission member (210), a light generation device (203), and a light reception device (204); the light generation device (203) is configured to emit emission light toward the light transmission member (210) that passes through an outer boundary wall (214) of the light transmission member (210) and has a preset emission angle, and the light reception device (204) is configured to receive reflection light after the emission light is reflected by an inner boundary wall (215) of the light transmission member (210). The measurement apparatus (100) can directly detect whether liquid is carried in a gaseous refrigerant exiting from an evaporator, as well as measure the amount of carried liquid. The refrigeration system can adjust a throttling apparatus in a timely manner according to a measured result, and prevents the performance of the refrigeration system and a compressor from being affected.
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公开(公告)号：US20230249111A1
公开(公告)日：2023-08-10
申请号：US18007937
申请日：2021-05-31
Applicant: York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , John Controls Tyco IP Holdings LLP
Inventor： Zhanhui Feng , Fang Xue , Xiuping Su , Lu Mei
Abstract: This application provides a gas-liquid separator, including a housing assembly and a plurality of first ribs. The housing assembly has an inner side wall defining a housing accommodation cavity. The housing assembly includes an inlet, a gas outlet, and a liquid outlet, the inlet. The gas outlet, and the liquid outlet are communicated with the housing accommodation cavity. The inlet is provided on the inner side wall of the housing accommodation cavity, the gas outlet is provided above the inlet, and the liquid outlet is provided below the inlet. The plurality of first ribs are arranged on the inner side wall of the housing assembly. Each of the plurality of first ribs is arranged at an angle with respect to a height direction of the housing assembly, and each of the plurality of first ribs includes a first rib windward end and a first rib leeward end. In a flow direction of a fluid entering the housing accommodation cavity from the inlet, the first rib windward end is located upstream of the first rib leeward end. In the height direction of the housing assembly, the first rib windward end is higher than the first rib leeward end. The gas-liquid separator has a compact structure, a small overall volume, and high separation efficiency.
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公开(公告)号：US20220090601A1
公开(公告)日：2022-03-24
申请号：US17421699
申请日：2019-08-20
Applicant: York (Wuxi) Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Tyco IP Holdings LLP
Inventor： Yu Zhu , Zhengxiang Yu , Fanfei Zeng , Fengzhi Zhang
Abstract: A screw compressor (100), comprising a screw rotor (110) and a spool valve (120). The screw rotor (110) comprises a suction head end (111) and an exhaust tail end (112). Gas is sucked in from the suction head end (111) and compressed gas is discharged from the exhaust tail end (112). The spool valve (120) comprises a working side (125) for sealing a compression chamber of the screw rotor (110). The working side (125) comprises a spool valve head end (121) and a spool valve tail end (122) and can do a reciprocating motion along the axis direction of the screw rotor (110). When the spool valve (120) moves to a suction capacity adjusting position (240), the spool valve head end (121) is located at the inner side of the suction head end (111) of the screw rotor (110), and a suction capacity adjusting distance (D2) is formed between the spool valve head end (121) and the suction head end (111) so that the suction capacity of the screw compressor is adjusted. The suction capacity of the screw compressor (100) can be adjusted by means of the spool valve (120), so that the problem of motor temperature and exhaust gas temperature limits of conventional variable frequency screw sets is effectively solved and the operational range and the load regulation ability of the screw compressor are expanded.
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