Multi-temperature-zone refrigeration house system

Abstract

The invention provides a multi-temperature-zone refrigeration house system. The multi-temperature-zone refrigeration house system comprises a refrigeration unit, a first cold storage tank, a second cold storage tank, a third cold storage tank, a fourth cold storage tank, quick-freezing storehouse, a freezing storehouse, a refrigerating storehouse, a fresh-keeping storehouse,a cold supply distributor and a liquid return distributor; the refrigeration unit is used for supplying cold storage liquid to the first cold storage tank, the cold storage liquid is supplied to the cold supply distributorthrough the first cold storage tank, the second cold storage tank, the third cold storage tank and the fourth cold storage tank, and the cold storage liquid is distributed to the quick-freezing storehouse, the freezing storehouse, the refrigerating storehouse and the fresh-keeping storehouse through the cold supply distributor; and the cold storage liquid returns to the liquid return distributor through the quick-freezing storehouse, the freezing storehouse, the refrigerating storehouse and the fresh-keeping storehouse, and the cold storage liquid returns the first cold storage tank, the second cold storage tank, the third cold storage tank and the fourth cold storage tank through the liquid return distributor. By the adoption of the multi-temperature-zone refrigeration house system, various system mode conversion can be flexibly carried out, and the temperature zone mode conversion of each refrigeration house can be flexibly carried out.

Description

technical field [0001] The invention relates to a cold storage system, in particular to a multi-temperature zone cold storage system. Background technique [0002] The traditional cold storage refrigeration method is that each cold storage corresponds to one or more refrigeration units, and each cold storage corresponds to a refrigeration mode or refrigeration temperature, and the temperature range is a fixed mode, which cannot be changed to other temperature zones or used for other purposes. . When seasonal changes require other temperature zones, there is no other way but to rebuild. Moreover, the entire refrigeration pipeline is a high-pressure pipeline, which requires a large amount of investment and is difficult to maintain later. Figure 1A to Figure 1E It is a schematic diagram of a cold storage system in the prior art, such as Figure 1A As shown, the ultra-low temperature / quick freezer 502 at -65 to -45°C is independently controlled by a refrigeration unit 500, an...

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Problems solved by technology

[0008] The purpose of the present invention is to propose a multi-temperature zone cold storage system to solve the defects of the prior art multi-storage and multi-machine cold storage system with increased cooling load and low operating efficiency of the main refrigeration unit

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