Ventilation unit using temperature and atmospheric pressure equilibrium and preservation system using same

Abstract

An atmospheric pressure equilibrium ventilation unit.

Description

TECHNICAL FIELD[0001]The present invention relates to a ventilation unit using temperature and atmospheric pressure equilibrium and a preservation system using same. More particularly, the present invention pertains to an atmospheric pressure equilibrium ventilation unit for controlling the temperature of an adjacent place using the hot energy or cold energy generated from one heating device or cooling device and a preservation system using same.BACKGROUND ART[0002]In a household refrigerator, the temperature of a refrigerating room can be adjusted by one evaporator of a freezing room without installing an additional evaporator in the refrigerating room. However, in a large-scale industrial or commercial work-in cooler or freezing refrigerator, the size of a fan of a freezing room evaporator and the size of a damper and a duct interconnecting the freezing room and the refrigerating room become larger. Thus, there is a problem in that an air is difficult to smoothly circulate due to ...

AI Technical Summary

Benefits of technology

The present invention provides an atmospheric pressure equilibrium ventilation unit that can control the temperature of adjacent storage facilities. It uses a dedicated ventilation unit with a low heat transfer coefficient to prevent ice formation and air leakage. The unit includes a damper, a heater, a geared motor, and a drive circuit for accurate opening and closing of the damper. It also removes differences in interior pressure between the storage facilities and external atmospheric pressure through an external atmospheric pressure equalizer. Additionally, the invention provides an external atmospheric pressure equalizer for balancing the pressure of the storage facilities with external air, which prevents sudden temperature changes and saves energy. The invention can also serve as a preliminary facility for emergency situations by allowing the non-broken-down storage facility to supply required heat to the broken-down facility.

Problems solved by technology

However, in a large-scale industrial or commercial work-in cooler or freezing refrigerator, the size of a fan of a freezing room evaporator and the size of a damper and a duct interconnecting the freezing room and the refrigerating room become larger.

Thus, there is a problem in that an air is difficult to smoothly circulate due to the heat loss, the ice formation in the damper and the atmospheric pressure rise in the refrigerator and the atmospheric pressure drop in the freezer generated when blowing the air existing in the freezer to the refrigerator.

Furthermore, a heat loss is generated in the freezer due to the introduction of an external air into the freezer through an atmospheric pressure valve which is installed to remove a negative pressure attributable to a temperature drop in the freezer.

A heat loss is induced because the air existing in the refrigerator having an increased atmospheric pressure is discharged to the outside through an atmospheric pressure valve installed in the refrigerator.

This poses a problem in that the material cost, the labor cost and the power consumption are increased.

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