Refrigeration system capable of achieving quick precooling and ice cream machine

Abstract

The invention discloses a refrigeration system capable of achieving quick precooling. The refrigeration system comprises a compressor, a condenser, precooling heat exchange parts, a first control valve, refrigeration heat exchange parts, a second control valve, an expansion valve and a drying and filtering device, and the compressor is in sequential series connection with the condenser, the drying and filtering device, the expansion valve, the first control valve and the refrigeration heat exchange parts, so that a refrigeration loop of closed circulation is formed; the compressor is in sequential series connection with the condenser, the drying and filtering device, the expansion valve, the second control valve and the precooling heat exchange parts, so that a precooling loop of closed circulation is formed. According to the refrigeration system, the precooling heat exchange parts and the refrigeration heat exchange parts are in parallel connection, and the single high power compressor is utilized for conducting independent precooling on slurry in a slurry storage basin, the precooling speed of the ice cream slurry is greatly raised, cold storage and freshness preservation of the slurry are guaranteed, ice cream fabrication time is remarkably shortened, the ice cream output is increased, and the refrigeration system has the advantages of being simple in structure, convenient to operate, good in precooling effect and the like. In addition, the invention further discloses an ice cream machine.

Description

technical field [0001] The invention relates to the technical field of food refrigeration, in particular to a fast precooling freezing system. The invention also relates to an ice cream machine equipped with such a freezing system. Background technique [0002] The refrigeration system of the ice cream machine generally uses a compressor to compress the refrigerant and drive it to circulate in the refrigeration system pipeline to achieve the freezing of the ice cream slurry. In order to ensure the freshness of the ice cream slurry and to facilitate better freezing of the ice cream slurry, many high-end soft ice cream machines generally have a pre-cooling function. By setting a small pre-cooling compressor and a matching pre-cooling condenser , pre-cooling capillary to form a set of pre-cooling system, but the added pre-cooling system will not only increase the volume and weight of the ice cream machine, but also generate additional energy consumption and affect the heat dis...

AI Technical Summary

Problems solved by technology

In order to ensure the freshness of the ice cream slurry and to facilitate better freezing of the ice cream slurry, many high-end soft ice cream machines generally have a pre-cooling function. By setting a small pre-cooling compressor and a matching pre-cooling condenser , pre-cooling capillary to form a set of pre-cooling system, but the added pre-cooling system will not only increase the volume and weight of the ice cream machine, but also generate additional energy consumption and affect the heat dissipation performance of the ice cream machine

For this reason, ice cream machines that adopt a single refrigeration compressor to pre-cool the storage basins for storing ice cream slurry have appeared on the market. It usually takes a long time (about 4 hours) to cool down the ice cream slurry in the storage basin to the required temperature (2-12°C). The problem of poor effect, especially for customers located in tropical and subtropical regions, shortening the pre-cooling time and improving the pre-cooling effect is an urgent need

Images