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

[0059]The atmospheric pressure equilibrium ventilation unit of the present invention configured as above is installed between two or more storerooms having different temperatures (or between a heat source warmer cabinet and a heat-receiving warmer cabinet). When a temperature is to be kept low, an air existing in a low-temperature storeroom having a low-temperature heat source is supplied to an adjoining storeroom whose temperature is to be controlled. When a temperature is to be kept high, an air existing in a high-temperature storeroom having a high-temperature heat source is supplied to an adjoining storeroom whose temperature is to be controlled. At this time, a positive pressure generated in an air-receiving storeroom is returned to an air-supplying storeroom, thereby making up for a negative pressure of the air-supplying storeroom and maintaining atmospheric pressure equilibrium. Thus, the air is smoothly circulated. This makes it possible to control the temperature of an adjoining target storeroom.

[0060]For this purpose, a dedicated ventilation unit made of a non-metallic material having a low heat transfer coefficient is employed so as to cut off heat transfer and air leakage. In order to prevent ice formation in a damper, a dedicated heater is installed in a frame body of a ventilation assembly in which a damper plate rotates. A geared motor is used as an opening/closing power source in order to accurately open and close the damper with a strong force. A dedicated drive circuit is employed to operate the damper. An atmospheric pressure difference generated when opening and closing an entrance door and when circulating an air, namely a difference in internal pressure between a first storeroom and a second storeroom may be removed by an atmospheric p...

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 refrigerat...

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