Gree Electric Appliances, Inc. of Zhuhai

Gree Electric Appliances (wuhan) Co., Ltd

Shiqiang Zhang

Lianfa Wu

Huachao Jiao

Jianguo Xiong

Tao Feng

Limin Li

Bing Zhou

Peng Cao

Hua Liu

Zhiguang Huang

Donghui Li

Bo Qiu

Chao Zhou

Yihe Zhang

Kai Yu

Handong Xue

Yuhai Su

Ge Yu

Jianmin Guo

Weixue Lin

Shiqiang Zhu

Mengmeng Jin

Han Gao

Weiguo Li

Kai Xia

Wenjie Dai

Benyong Bao

Xiang Jia

Peixing Yang

Wu Xiang

Mingxiang Zhang

Quyang Ma

Fan Fan

Provided is a fin tube heat exchanger in which multiple stacked fins are formed into a particular shape so as to make the air flow between the fins smoother and which exhibits excellent heat transfer performance by increasing the ridge lines that are the lines of intersection between surfaces in order to enhance the heat transfer performance between the fins and the air flow. A fin tube heat exchanger wherein: stacked heat-transfer fins each have a wedge-shaped dent () on the upstream wind side and the downstream wind side of a fin collar (); the dent () is configured from a first ridge line () extending in the column direction in the upstream wind side and downstream wind side of the fin collar (), and two second ridge lines () which are arranged in the shape of a V and which derive from the vertex (P) of the first ridge line () and a ridge line () on the valley side extending in the step direction; and two V-shaped slanted planes are formed by means of the first ridge line () and the second ridge lines ().

Fin structure and heat exchanger

Provided are a control method and apparatus for increasing the amount of a circulating refrigerant, and an air conditioner. The control method includes: when a refrigerating capacity need is equivalent to a heating capacity need in the operation of an air-conditioning system, determining whether the discharge temperature of a compressor is greater than a preset safety alert value; if the discharge temperature of the compressor is greater than the safety alert value, adjusting the frequency of a fan of an outdoor heat exchanger; and when the discharge temperature of the compressor is not greater than the safety alert value, controlling to stop the adjustment of the frequency of the fan, and maintaining the air-conditioning system to operate at the adjusted current frequency of the fan.

Control method and device for increasing amount of circulating refrigerant and air conditioner

Disclosed are a method and device for controlling pressure of units with height drop, and an air conditioner device. The method includes: monitoring an operating mode of the unit; obtaining an operating parameter corresponding to the operating mode according to the operating mode; and adjusting an opening degree of an electronic expansion valve according to the operating parameter.

Method and device for controlling pressure of units with height drop, and air conditioner device

An air conditioning system, comprising an outdoor unit and an indoor heat exchange mechanism. The indoor heat exchange mechanism comprises an air conditioner indoor unit and a first heat exchange mechanism used for at least one among water cooling, water heating and space heating. The present air conditioning system integrates various functions into one, such as air-conditioning refrigeration, air-conditioning heating, producing household cold water, producing household hot water, and home heating by means of connecting indoor units for cooling and heating, a water cooling mechanism, a water heating mechanism and a device for floor heating located indoors to one outdoor unit. Moreover, the system directly utilizes high-temperature refrigerant to heat water for floor heating.

Air conditioning system

A continuous heating control system and method, and an air-conditioning device. The system includes a defrosting solenoid valve () arranged on a bypass pipeline, wherein one end of the bypass pipeline is connected to an oil separator (), and the other end of the bypass pipeline is connected to an outdoor heat exchanger (); and a heating structure which is arranged at the bottom of a gas separator () and used for heating the gas separator ().

Continuous heating control system and method, and air-conditioning device

A control method, a control device for starting an air conditioner, a storage medium, and an air conditioner are disclosed. The method includes the step of acquiring current temperature variation information of a weather in an environment of the air conditioner and current startup parameters of the air conditioner. The method further includes the step of controlling operation parameters of the air conditioner according to the current temperature variation information and the current startup parameters of the air conditioner.

Control method, control device for starting air conditioner, storage medium and air conditioner

An air conditioning system, including a compressor, two outdoor heat exchange units, a liquid pipe used for communicating with indoor units, a high-pressure gas tube and a low-pressure gas tube; the air conditioning system further includes a valve assembly. One outdoor heat exchange unit has a first state in which one end thereof communicates with the high-pressure gas tube and another end thereof communicates with the liquid pipe, and has a second state in which one end thereof communicates with the low-pressure gas tube and the other end thereof communicates with the liquid pipe. Further disclosed is a control method for the air conditioning system.

Air conditioning system and control method for air conditioning system

The present disclosure relates to a control method and a control device of an air conditioning system, and an air conditioning system, and relates to the technical field of air conditioners: the method includes: determining whether piping length compensation is required; if the piping length compensation is required, acquiring one or more metric parameters; and determining a compensation value according to the one or more metric parameters, and adjusting an operating state of the air conditioning system according to the compensation value.

Control method and device of air conditioning system and air conditioning system

The present disclosure relates to a method and device of combining outdoor units and rotating operation of outdoor units, and MSAC system, and relates to the field of unit technology. The method includes: determining a plurality of combination manners of the outdoor units, according to a capacity of an indoor unit currently turned on and a capacity of each of the outdoor units; sequencing the plurality of combination manners in priority, according to priority strategies; and sequentially rotating the outdoor units to operate, based on the sequenced combination manners.

Method and device of combining outdoor units and rotating operation of outdoor units and MSAC system

The present disclosure relates to a method of controlling operation state of multi-split air conditioner and system, and a heat pump multi-split. The control method includes: determining a target operation mode of each indoor unit according to an operation mode set by a user for the indoor unit; performing statistics on heat exchange demands of the indoor units corresponding to different target operation modes, and determining a dominant operation mode among the target operation modes according to the heat exchange demands; and using the dominant operation mode as the operation mode of an outdoor unit.

Method and system of controlling operation state of multi-split air conditioner, and heat pump multi-split air conditioner

The present disclosure discloses a control method for a multi-split air conditioning system and a multi-split air-conditioning system, the multi-split air conditioning system, including a compressor and a plurality of indoor units respectively arranged on a plurality of parallel branches, the indoor unit including a fan and the control method including: in a cooling mode, when the multi-split air conditioning system needs oil return, the multi-split air conditioning system opening a branch where an indoor unit in an off state is located, determining whether the indoor unit has reached a dewing condition, opening the branch on which the indoor unit is located, and controlling the fan of the indoor unit according to a determination result.

Multi-split air conditioning system and control method therefor

An air conditioning system and a control method are provided. The air conditioning system includes: at least one heat exchanger (); and at least one control mechanism. Each control mechanism is connected to one of the at least one heat exchanger () and is configured to control the corresponding heat exchanger to switch between a first working state and a second working state. The heat exchanger () drains liquid when in the first working state and stores liquid when in the second working state.

Air conditioning system and control method thereof

A variable refrigerant volume system includes: a compressor; a four-way valve; an indoor unit; a liquid tube, the first end thereof being connected to the indoor unit, the second end thereof being connected to the third valve port of the four-way valve, and a condenser being provided on the liquid tube; a low pressure air pipe, the first end thereof being connected to the indoor unit, and the second end thereof being connected to the fourth valve port of the four-way valve; a refrigerant adjustment tank, the first port thereof being connected to the liquid tube, the second port thereof being connected to the low pressure air pipe, and the third port thereof optionally communicating with the liquid tube or the low pressure air pipe.

Growing community of inventors

Guangdong, China

Shiqiang Zhang