Anti-vibration type air cooled heat pump flooded water chilling unit and control method thereof

Abstract

The invention discloses an anti-vibration type air cooled heat pump flooded water chilling unit and a control method thereof. The anti-vibration type air cooled heat pump flooded water chilling unit comprises an electric case, a condenser, a compressor, a secondary oil separator, a four-way reversing valve, a finned heat exchanger, a liquid separator, expending valves, a one-way valve, a liquid reservoir, a drying and filtering device, electromagnetic valves, a flooded evaporator, a gas-liquid separator and a jet pump. According to the anti-vibration type air cooled heat pump flooded water chilling unit, return oil of one way of the secondary oil separator and return oil of the flooded evaporator are subjected to intelligent control, and meanwhile unit axial flow fans are subjected to hierarchical control, so that the problems that oil throwing occurs in the process of starting the compressor, the return oil is not stable in the operational process and a low-temperature refrigeration operational system is not stable are avoided. Thus the unit can continuously run under the whole year environment, provide sufficient circulating cooling water for a device and ensure that the device can run normally and safely.

Description

Technical field [0001] The invention relates to the technical field of artificial refrigeration, in particular to an anti-vibration air-cooled heat pump flooded chiller and a control method thereof. Background technique [0002] At present, the air-cooled full-liquid chillers used in the market basically cannot meet the seismic requirements. In some specific fields, air-conditioning equipment is required to operate throughout the year, and cooling operations are still required at lower ambient temperatures. [0003] At lower ambient temperature, the compressor of the anti-vibration air-cooled flooded chiller occasionally stops due to “oil throwing” during the start-up process. During long-term operation, the compressor oil level alarms and stops due to unstable oil return, especially The unstable operation of the refrigeration system at lower ambient temperature is more prominent. In order to solve the problem of "oil throwing" occasionally during compressor startup of the anti-vi...

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Problems solved by technology

[0005] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a compressor that can overcome the problems of excessive "oil throwing" during the start-up process of the compressor and unstable oil return during operation, and satisfy year-round operation, and can be used at a relatively low temperature. Anti-seismic air-cooled heat pump flooded water chiller with cooling operation at low ambient temperature and control method thereof

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