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Air source air suspension centrifugal cold water heat pump device

A heat pump device and air suspension technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of high maintenance costs, reduced heat transfer coefficient of heat exchangers, and reduced unit performance, and achieve stable and reliable air suspension. The effect of reducing oil system and high pressure ratio

Pending Publication Date: 2020-07-28
宝莲华新能源技术(上海)股份有限公司
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AI Technical Summary

Problems solved by technology

The traditional compressor has brought many hidden dangers to the system reliability, such as the compressor is stuck, the motor is burned, etc., and the performance of the unit is reduced after the oil is brought into the system, and the heat transfer coefficient of the heat exchanger is reduced.
At the same time, because of the low reliability of the magnetic levitation compressor, the maintenance cost is extremely high

Method used

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  • Air source air suspension centrifugal cold water heat pump device

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the specific embodiments thereof will be described in detail below with reference to the accompanying drawings:

[0027] see figure 1 , the preferred embodiment of the present invention, an air-source air-suspended centrifugal cold water heat pump device, comprising an air-suspended centrifugal compressor 1, a four-way valve 3, an air source heat exchanger 4, a liquid accumulator 6, an economizer 8, a liquid Pump 9, gas tank 10 and dual-purpose heat exchanger 11.

[0028] The air suspension centrifugal compressor 1 has two-stage impellers. The two-stage impellers are the first-stage impeller 101 and the second-stage impeller 102 respectively. A motor and a bearing 2 are arranged between the first-stage impeller 101 and the second-stage impeller 102. The air in the suspension bearing, the motor and the bearing 2 is provided by the gas tank 10 .

[0029] 1....

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Abstract

The invention discloses an air source air suspension centrifugal cold water heat pump device. The air source air suspension centrifugal cold water heat pump device comprises an air suspension centrifugal compressor, a four-way valve, an air source heat exchanger, a liquid storage device, an economizer, a liquid pump, an air tank and a dual-purpose heat exchanger, wherein the air suspension centrifugal compressor is provided with two stages of impellers, the two stages of impellers are the first-stage impeller and the second-stage impeller correspondingly, and a motor and a bearing are arrangedbetween the first-stage impeller and the second-stage impeller; the second-stage impeller of the air suspension centrifugal compressor is connected with a first port of the four-way valve; a second port of the four-way valve is connected with an air suction port of the first-stage impeller of the air suspension centrifugal compressor; and a third port of the four-way valve is connected with an inlet of the air source heat exchanger. According to the air source air suspension centrifugal cold water heat pump device, the air suspension centrifugal compressor is adopted as lifting power, an oilloop and an oil cooling system are not arranged in the system, the device is simplified, and the system performance and reliability are guaranteed.

Description

technical field [0001] The invention relates to an air source gas suspension centrifugal cold water heat pump device. Background technique [0002] At present, the large-scale cold water heat pump devices on the market are screw and centrifugal products. Screw compressors all use oil-lubricated rotors and bearings. Most of the centrifugal compressors use oil-lubricated bearings, and a small part uses magnetic suspension bearings. . Traditionally containing compressors brought many hidden dangers to the system, such as compressor stuck, motor burnout, etc., and the performance of the unit and the heat transfer coefficient of the heat exchanger decreased after the oil was brought into the system. At the same time, the magnetic suspension compressor has low reliability and high maintenance cost. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the defects of the prior art, and provide an air-source air-suspended centrifugal cold water he...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B41/04F25B41/06F25B43/00F25B41/20F25B41/30
CPCF25B13/00F25B43/006F25B41/26F25B41/30
Inventor 熊健孟凡亮龚文
Owner 宝莲华新能源技术(上海)股份有限公司
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