Gree Electric Appliances, Inc. of Zhuhai

Dongguan Lanye Electronic Technology Co., Ltd

Rong Xie

Ruixing Zhong

Nan Jiang

Caiyun Jiang

Yuhui Chen

Hongxing Wang

Jianfei Liu

Zhiping Zhang

Baoqian Huang

Jing Zhang

Yi Zhou

Xiubing Yan

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Provided are a centrifugal compressor gas-supplementing structure and a compressor using the foregoing gas-supplementing structure. The centrifugal compressor gas-supplementing structure includes a annular gas-supplementing passage () for introducing supplemented gas into a gas passage () of a compressor, and an airflow-guiding assembly is provided in the annular gas-supplementing passage (). The gas-guiding assembly is used for adjusting a direction of the supplemented gas flowing into the gas passage (), so that an angle between a direction of the supplemented gas flowing into the gas passage () and a direction of an airflow in the gas passage () falls within a preset range, and a turbulence loss generated when the two passages of gas merge is avoided to the greatest extent, thereby improving cycle efficiency.

Centrifugal compressor gas-supplementing structure and compressor

The invention discloses a centrifugal compressor. The centrifugal compressor includes multiple stages of compression units which are communicated in sequence. Each stage of compression unit includes a diffusion cavity () and a diffusion adjustment device, wherein the diffusion adjustment device includes a movable member () configured to change a radial flow area of the diffusion cavity () provided in correspondence thereto, the movable member () being movably provided in an axial direction of the centrifugal compressor. The invention also discloses a centrifugal unit having the centrifugal compressor. The movable member of each stage of compression unit of the centrifugal compressor changes the radial flow area of the diffusion cavity of this stage of compression unit, thereby effectively reducing the possibility of surging.

Centrifugal compressor and centrifugal unit having the same

The invention discloses a centrifugal compressor. The centrifugal compressor comprises: a housing (), provided with a mounting chamber (), a thread section () being provided on a side wall of the mounting chamber (); an adjusting piece (), mounted in the mounting chamber (), the adjusting piece () being provided with threads adapting to the thread section (); a driving piece (), mounted in the mounting chamber () and configured to drive the adjusting piece () to move forwards or backwards along the thread section (); and an adjustable diffuser (), fixedly connected to the adjusting piece (). The invention also discloses a centrifugal water chilling unit having the centrifugal compressor. The centrifugal compressor and the centrifugal water chilling unit can solve the problem that the adjustable diffuser easily inclines and is stuck, thereby greatly improving the reliability of the centrifugal compressor.

Centrifugal compressor and centrifugal water chilling unit

The invention discloses a centrifugal compressor and a water chilling unit having the same. The centrifugal compressor includes an impeller (), a diffuser (), a volute () and an exhaust diffuser pipe (), the diffuser () including a pressurization passage, air flowing through the impeller () entering an inlet of each pressurization passage, the volute () being configured to collect the air pressurized by the diffuser (), the exhaust diffuser pipe being communicated with the volute, and an extending direction of the exhaust diffuser pipe inclining downwards with respect to a horizontal plane. The extending direction of the exhaust diffuser pipe communicated with the volute inclines downwards with respect to the horizontal plane, so that noise and airflow losses of high-temperature and high-pressure air in the exhaust diffuser pipe expelled from the centrifugal compressor due to bending of the pipe can be reduced, and the noise can be effectively reduced.

Centrifugal compressor and water chilling unit having the same

A regulator assembly, comprising a vaned diffuser, a motor, a driving gear engaged with a driven gear, the driven gear having rectangle-shaped through holes thereon, the rectangle-shaped through holes disposed and extending along an axis of the driven gear, and a regulating mechanism including a regulator, a supporting member, wherein the regulator is sleeved on the supporting member, and wherein the vaned diffuser is fixed on the supporting member, and regulator sliding members fixed to the regulator through the rectangle-shaped through holes of the driven gear, whereby the motor is configured to drive the driving gear to rotate, the driving gear is configured to drive the driven gear to rotate, the driven gear is configured to push the regulator sliding members to move, and the regulator sliding members are configured to drive the regulator to rotate relative to the vaned diffuser, thus driving the regulator to move along its axis.

Regulator assembly and centrifugal compressor

Centrifugal compressor

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Zhuhai, China

Rong Xie