Oil cooling system used for evaporation refrigeration type condenser and screw units

Abstract

The invention belongs to an oil cooling system used for an evaporative cooling type condenser and a screw machine set. The problems to be solved are as follows: the oil temperature is not stable, the extra heat load and energy consumption are increased in a refrigerating system, the working condition is not easy to be stable and the system structure is complex and the like. The key points of the adopted technical proposal for solving the problems are as follows: the condenser is connected with an oil cooler by a drain pipe, is connected with a vapor liquid separator by a vapor liquid mixing pipe and is connected with a high pressure liquid reservoir by a liquid pipe; the upper end of the vapor liquid separator is connected with an exhaust pipe of a compressor by a siphon pipe; the high pressure liquid reservoir is connected with the vapor liquid separator; the oil separator is connected with an oil inlet of the oil cooler and the other end of the oil separator is connected with an inlet B of a temperature control regulating valve; the oil cooler is connected with another inlet C of the temperature control regulating valve; an inlet A of the temperature control regulating valve supplies oil to each screw compressor through an oil pipe; and the condenser is connected with the oil cooler. The invention is applied to the oil cooling system used for the evaporative cooling type condenser and the screw machine set, the oil temperature is stable and the refrigerating system has no extra heat load and the like.

Description

Technical field: [0001] The invention belongs to the technical field of refrigeration and air conditioning equipment, in particular to an oil cooling system for evaporative cooling condensers and screw units. Background technique: [0002] In the current refrigeration system using screw compressor units, in order to ensure the reliable and efficient operation of the screw compressor, it is required that the oil temperature of the lubricating oil of the screw compressor must be appropriate, and the cooling of the lubricating oil should be carried out reliably and stably. The oil cooling system currently used for evaporative cooling condensers and screw units is: the refrigerant working medium throttling expansion evaporative cooling method and the refrigerant working medium liquid adopts the thermosiphon principle cooling method, in which the refrigerant working medium throttling expansion evaporates Cooling method The oil cooling system is: the evaporative cooling condenser ...

AI Technical Summary

Problems solved by technology

Therefore, although this oil cooling method is economical in operation, it has a complex structure, the installation space needs to be distributed in layers and steps, the location of equipment components is limited, the degree of unitization is not high, the siphon tank needs to be large in volume, and the refrigerant charge Many, many pipeline consumables, long construction period and high cost

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