Carrier Corporation

YuHui Kuang

Guangyu Shen

Hui Zhai

Yu Zhu

Runfu Shi

Xiangyu Gao

Stella M Oggianu

Michel Karol Grabon

Dong Luo

Shui Yuan

Michael J Birnkrant

Lei Yu

Jianwei Zhao

Kai Deng

Hongsheng Liu

Shuguang Zhang

Fei Xie

Tingcan Mi

QiaoHui Shi

Robert Hong-Leung Chiang

Chungang Wang

Lijia Jessica Zhao

An air purification includes a body portion, having a first installation space, a second installation space and a third installation space; a positive/negative ion module, removably mounted in the first installation space and controlled to generate positive ions and/or negative ions; a plasma module, removably mounted in the second installation space and controlled to generate plasmas; and a power supply module, removably mounted in the third installation space and configured to supply power for the positive/negative ion module and the plasma module.

Air purification device

A centrifugal compressor and a refrigerating device. The centrifugal compressor includes: a shell, which has a fluid inlet and a fluid outlet; a motor assembly including a stator and a rotor, the rotor including a vertically arranged rotor shaft; a centrifugal compression mechanism, an impeller of which is connected with the rotor shaft so as to be driven by the motor assembly, wherein the centrifugal compression mechanism is arranged downstream of the fluid inlet to receive fluid, compress and pressurize the fluid, and output the pressurized fluid in a direction away from the motor assembly; and a guide member, which receives the pressurized fluid from the centrifugal compression mechanism, and which defines a flow passage alone or together with a part of the shell, wherein the flow passage is configured such that the pressurized fluid from the centrifugal compression mechanism passes through and cools the motor assembly.

Centrifugal compressor having a motor cooling passage

An apparatus and a method for detecting refrigerant leakage in an air source heat pump system. The method for detecting refrigerant leakage in an air source heat pump system includes the following steps in a cooling mode: S: obtaining a running parameter of an air source heat pump system, wherein the running parameter at least includes a compressor rotational speed; S: comparing the running parameter with a preset running parameter range; S: updating a cumulative score when the running parameter falls within the preset running parameter range; and S: when the cumulative score exceeds a predetermined cumulative score, determining that refrigerant leakage occurs, and when the cumulative score does not exceed the predetermined cumulative score, return to step S

Detection apparatus and method for refrigerant leakage of air source heat pump system

The present application discloses a control method for an HVAC system in a relatively large spatial place and the HVAC system. The HVAC system comprises an air handling unit, and the air handling unit is provided with a valve through which a fluid medium passes and a fan; and the method comprises: monitoring a return air temperature of air circulated back to the air handling unit; providing a return air temperature setpoint of the HVAC system; and performing decoupling adjustment on one of the fan and the valve, and then adjusting the other of the fan and the valve so that the return air temperature is close to the return air temperature setpoint. According to the present application, the HVAC system can operate in a steady and energy-saving way.

HVAC system and control method thereof

A refrigerant leak detecting method for an air-cooling heat pump system in a heating mode comprises S, S, obtaining a leak indication parameter set, wherein the leak indication parameter set at least includes a refrigerant level in a liquid reservoir and/or a supercooling degree; S, S, comparing each leak indication parameter in the leak indication parameter set with a corresponding preset indication parameter interval; S, S, when each leak indication parameter falls within a corresponding preset indication parameter interval, obtaining and recording a corresponding evaluated refrigerant leak amount; S, S, when a cumulative value of the evaluated refrigerant leak amount falls within a preset refrigerant leak interval, determining that a refrigerant leak occurs in the air-cooling heat pump system; when the cumulative value of the evaluated refrigerant leak amount does not fall within the preset refrigerant leak interval, returning to the step S, S

Air cooling heat pump system, refrigerant leakage detection method and detection system air cooling heat pump system thereof

A steady-state data processing method includes resetting a cumulative change of target determination data and a data detection period as 0; obtaining the detected target data; calculating the cumulative change of the target data. When the calculated cumulative change of the target data is less than a preset threshold, adjusting the data detection period, or when the calculated cumulative change of the target data is not less than the preset threshold, recording a data detection period. When the recorded data detection period is less than a preset time threshold, determining a target data result obtained in the period as unsteady-state data of the device; or when the recorded data detection period is not less than the preset time threshold, determining the target data obtained in the data detection period as steady-state data.

Data processing method, refrigerant leakage detection method, system failure detection method and system performance detection method

A system and method for conditioning air within an air handling system of a building is provided. The building has a hot water source and a cold water source. The conditioning system includes at least one heating-cooling unit connected to the air handling system, a primary water storage device, at least one heat pump, and a controller. The heating-cooling unit, which includes at least one chilled beam, is operable to transfer heat into or out of air passing within the air handling system of the building. The primary water storage device is operable to store a volume of water within a predetermined temperature range. The primary water storage device is in communication with the hot water source and the cold water source. The heat pump is connected to the primary water storage device and the chilled beam. The controller is adapted to selectively drive the heat pump to transfer heat between the primary water storage device and the chilled beam. The controller is also adapted to selectively control the system to transfer heat into or out of the primary water storage device to maintain the water within the primary storage device within the predetermined temperature range.

System and method for maintaining air temperature within a building HVAC system

The present invention relates to a video analysis system for an energy-consuming building equipment. The video analysis system includes a camera and an image processing unit to monitor people who appear in a target region, and in an actual space where the camera coexists with the energy-consuming building equipment, a height from the camera to a bottom surface of the actual space ranges from 2 to 10 meters. The present invention further relates to an intelligent building management system provided with the video analysis system for the energy-consuming building equipment. With the video analysis system of the present invention, a security system of a building is combined with the energy-consuming building equipment by means of an optimal camera design/arrangement, which can improve the operation efficiency of the whole building significantly and achieve a desirable energy-saving effect.

Video analysis system for energy-consuming building equipment and intelligent building management system

This invention provides a temperature and humidity independent control air conditioning system, comprising a high temperature cooling unit, a low temperature cooling unit, a humidity processing unit, and an indoor unit, wherein the coolant with a first temperature provided by the high temperature cooling unit flows into the indoor unit and then its temperature becomes a second temperature; the coolant with a third temperature provided by the low temperature cooling unit flows into the humidity processing unit; the coolant with the second temperature is divided to the low temperature cooling unit. With this invention, temperature and humidity independent control can be realized with high efficiency.

Temperature and humidity independent control air conditioning system and method

A system and method for conditioning air is provided. A building has a hot water source and a cold water source. The system includes at least one heating-cooling unit, a primary water storage device, at least one heat pump, and a controller. The heating-cooling unit transfers heat into or out of air passing within an air handling system of the building. The primary water storage device stores a volume of water within a predetermined temperature range. The primary water storage device is in communication with the hot water source and the cold water source. The heat pump is connected to the primary water storage device and a chilled beam. The controller selectively drives the heat pump to transfer heat between the primary water storage device and the chilled beam. The controller selectively controls the system to transfer heat into or out of the primary water storage device.

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Shanghai, China

YuHui Kuang