Oil cooler for heat pump compressor

Abstract

The invention discloses an oil cooler for a heat pump compressor. A barrel (5) of the oil cooler is provided with a liquid supply pipe (15), an air outlet pipe (16), an air outlet port (6) and a sewage discharging port (7). A left oil chamber (1) is arranged on the left side of a left pipe plate (4) and provided with an air outlet port (2) and a pollution discharge oil discharging port (3). A heat exchange pipe (17) and a liquid dividing plate (18) are positioned between the left pipe plate (4) and a right pipe plate (8) in the barrel (5). An upper right oil chamber (10-1) and a lower right oil chamber (10-2) are arranged on the right side of the right pipe plate (8), the upper right oil chamber (10-1) is provided with an oil outlet (13) and an air outlet port (9), the lower right oil chamber (10-2) is provided with an oil inlet (12) and a pollution discharge oil discharging port (11), and the heat exchange pipe (17) is respectively communicated with the left oil chamber (1), the upper right oil chamber (10-1) and the lower right oil chamber (10-2). The oil cooler for the heat pump compressor improves the cooling effect of lubricating oil for the heat pump compressor, prolongs service life of a bearing, reduces use and maintenance cost and improves system running stability and reliability.

Description

Technical field: [0001] The invention relates to a novel heat pump, especially an oil cooler for a high-temperature heat pump compressor, belonging to a novel device for improving efficiency and reliability in the field of heat pump compressors. Background technique: [0002] In the refrigeration (heat) system, the compressor plays the role of "heart", sucks the low-temperature and low-pressure gas in the evaporator and compresses it into high-temperature and high-pressure gas, and then sends it to the condenser; the lubricating oil is the "blood" of the compressor , to lubricate and cool the bearings in the compressor. In addition, for different types of compressors, the lubricating oil also serves to provide power, seal and other functions. [0003] The lubricating oil circuit system of the compressor is generally composed of an oil pump, an oil cooler, and an oil filter. The lubricating oil passes through the oil pump, and after the pressure is increased, it is supplied ...

AI Technical Summary

Problems solved by technology

For heat pumps, especially high-temperature heat pump compressors, with the increase of the system condensation temperature, affected by the characteristics of the refrigerant, the cooling capacity of the refrigerant after throttling will become worse, and the heat transfer temperature difference will become smaller and smaller. As a result, the cooling effect of the oil cooler is significantly reduced, which eventually aggravates the damage of the bearing, and even cannot meet the cooling capacity of the oil cooler at all, causing the compressor to stop running due to the continuous rise of the oil temperature; although the traditional water cooling method is not affected by the system application However, with the increase of system running time, scale will form on the water side of the oil cooler, which will gradually reduce the heat transfer and cooling effect. Increase, the load of the oil cooler increases, the average temperature of the water in the oil cooler will increase, which will aggravate the scaling on the water side, and sharply reduce the cooling effect of the oil cooler. In order to reduce the impact of scaling, it must be shut down regularly And descaling, increasing the maintenance cost of the system

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