The energy-saving superthermal freezing system for ships which can change two step and a cascade

Title:

The energy-saving superthermal freezing system for ships which can change two step and a cascade

Document Type and Number:

Japanese Patent JP6216077

Kind Code:

B2

Abstract:

The present invention discloses a switchable two-stage and cascade marine energy-saving ultralow-temperature refrigeration system which comprises a high-temperature level refrigeration system, a low-temperature level refrigeration system, a hot fluorine defrosting system of a high-temperature level air cooler and a hot fluorine defrosting system of a low-temperature level air cooler. The hot fluorine defrosting system of the high-temperature level air cooler comprises a high-temperature level compressor of which the outlet is divided into two paths through a first oil separator; and the second path is connected with an air suction port of the high-temperature level compressor through a first solenoid valve, the high-temperature level air cooler, a third solenoid valve, a first pressure relief valve, a first gas-liquid separator, a first check valve and a first heat regenerator. The hot fluorine defrosting system of the low-temperature level air cooler comprises a low-temperature level compressor of which the outlet is divided into two paths through a precooler and a second oil separator; and the second path is connected with an air suction port of the low-temperature level compressor through an eighth solenoid valve, the low-temperature level air cooler, a sixth solenoid valve, a second pressure relief valve, a second gas-liquid separator, a third check valve and a second heat regenerator. The present invention has the obvious effects of large refrigeration section, high cooling rate, good energy-saving effect and thorough defrosting.

Inventors:

Apologetic
Guo You
King Kim
Lee Geiten
Xu

Application Number:

JP2016548035A

Publication Date:

October 18, 2017

Filing Date:

December 16, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

Shanghai Ocean University

International Classes:

F25B7/00; F25B1/00; F25B1/047; F25B5/00; F25B39/00; F25B40/00; F25B41/00; F25B43/00; F25B47/02; F28D9/00

Domestic Patent References:

JP5474546A
JP5650972U

Foreign References:

CN202973641U
CN201062909Y

Attorney, Agent or Firm:

try international patent corporation

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