A flat freezing plate and its refrigeration system

Abstract

The invention relates to a flat freezing plate, comprising: an end plate, on which an upper through hole and a lower through hole are arranged; an end sealing plate, on which a vertical connection hole is arranged on the end sealing plate; a number of The middle sealing plate is provided with an upper horizontal connecting hole and a lower horizontal connecting hole; a plate assembly, the plate assembly is composed of several sub-plates connected, each of which is provided with an upper channel and a lower channel. The invention realizes the effective reorganization of the channel in the flat freezing plate, fully guarantees the heat exchange between the goods on the surface of the whole flat freezing plate and the refrigerant; the heat exchange between the goods and the refrigerant is sufficient, the freezing effect of the goods is good, the freezing efficiency is high, and the refrigerant Charge less.

Description

technical field [0001] The invention relates to the field of dry cycle refrigeration, in particular to a flat freezing plate and a refrigeration system with the same. Background technique [0002] In the refrigeration system with flat freezing plate, when freezing products, the goods are placed on the top of the flat freezing plate, and the refrigerant in the cavity of the flat freezing plate absorbs the heat of the goods to realize the freezing process. There is only one layer of internal channels in the original flat freezing plate, but now the internal channel of the flat freezing plate is divided into upper and lower layers. Utilizing the separation of the internal channel of the flat freezing plate into the sealing plate, the refrigerant first circulates in the upper channel of the flat freezing plate, and then enters the inner circulation of the lower channel after the upper circulation is completed, which can effectively improve the freezing quality and freezing effic...

AI Technical Summary

Problems solved by technology

Because the dry system must ensure a certain degree of superheat when the unit is running in order to protect the compressor. For the flat freezing plate of the existing structure, in order to ensure a certain degree of superheat, the refrigerant must be around 3 / 4 of the total length of the circulation channel. It becomes superheated gas, and the last 1 / 4 part of the heat of the goods on the upper surface of the flat plate freezing plate cannot be released. In the same time, the goods on one side are completely frozen, and the goods on the other side are because there is no more refrigerant liquid and goods. Heat exchange occurs, and the goods on the other side cannot be frozen at the same time. Therefore, the freezing effect of the goods in the same plate freezing device is uneven, which affects the quality.

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