Refrigerating unit of ship refrigeratory

Abstract

The invention relates to a refrigerating unit for a ship, and belongs to the field of ship equipment. The refrigerating unit of a ship refrigeratory is characterized by comprising a ship scroll compressor, wherein exhaust air from an air cooler of the refrigeratory is communicated to the ship scroll compressor through an air and liquid inlet pipe; a hot spraying device is arranged on the air and liquid inlet pipe, and is connected with the ship scroll compressor; a sucking port of the ship scroll compressor is provided with a pressure control device; a discharge port of the ship scroll compressor is provided with a temperature control device; gas or liquid discharged from the discharge port of the ship scroll compressor passes through an oil separator and a condenser, and is fed to the air cooler of the refrigeratory after being filtered; the pressure control device induces the air sucking pressure of the compressor, and outputs signals to the hot spraying device; the temperature control device induces the exhaust temperature of the compressor, and outputs signals to the hot spraying device; and the hot spraying device adjusts the input / output air quantity of the ship scroll compressor according to the pressure signals, and adjusts the refrigerating capacity of the ship scroll compressor according to the temperature signals.

Description

technical field [0001] The invention relates to a refrigeration cycle system of a small refrigerator, in particular to a refrigeration unit of a marine refrigerator. Background technique [0002] The volume of the refrigerated freezer used on the ship is smaller than that of the refrigerated freezer on the ground, and the corresponding cooling load is relatively small, but the load fluctuation is relatively large. The traditional marine refrigerating devices used on ships generally use traditional multi-cylinder piston industrial refrigeration compressors that are easy to maintain. During the refrigeration process, the load is reduced by unloading the working cylinders, from multi-working cylinders to the remaining two cylinders. [0003] Due to the large fluctuations in the load of the cold storage on board, during the operation of the multi-cylinder piston industrial refrigeration compressor, the load reduction of the working cylinder is also increased frequently. After a ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a refrigerating unit for marine cold storage, which solves the problem that the current refrigerating device is easy to increase the temperature of the cylinder head due to load fluctuations and affects the service life of the unit, and the asymmetrical operation of the cylinder after unloading causes large vibration and noise Defects

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