KR20010035165A - Onebody refrigerator of agricultural products low temperature storage - Google Patents

Abstract

PURPOSE: An integrated type freezer is provided to improve refrigeration efficiency and cost by reducing the length of refrigerant pipe. CONSTITUTION: An integrated type freezer comprises a compressor(1), a condenser(2) and an evaporator(4) which are integrated into a single unit. When the outdoor temperature sensed by an outdoor temperature sensor(14) is lower than a predetermined level, the compressor is turned off, and the outdoor air is introduced by opening dampers(9,10) and operating a fan(8). When the indoor temperature sensed by an indoor temperature sensor(13) reaches a predetermined level, the damper(9) is closed so as to prevent the outdoor air from entering the indoor area. When the outdoor temperature sensed by the outdoor temperature sensor is higher than a predetermined level, a damper(12) is opened and the fan is operated while the compressor is in operation, such that the indoor air is sucked and passed through the freezing device. Then, the damper(10) is opened so that the air is supplied to the indoor area. The damper(9) is opened and the fan is operated so that the outdoor air is discharged to the outside through the damper(11), during defrost operation of an evaporating coil(7).

Description

Integrated chiller for agricultural cold storage {ONEBODY REFRIGERATOR OF AGRICULTURAL PRODUCTS LOW TEMPERATURE STORAGE}

1 is a view showing the configuration of a conventional agricultural product cold storage refrigeration system.

In the conventional refrigeration system of agricultural cold storage system, the compressor (1), the condenser (2) is located outdoors, the decanter (4) is located in the room, the refrigerant pipe is exposed to the outside for a long time, which causes the refrigeration efficiency is lowered As a result of the continuous operation of the refrigeration cycle, it is operating as a high energy consumption system.

First, the compressor (1), the condenser (2), the evaporator (4) to make an integrated refrigerator consisting of one. Therefore, the length of the refrigerant pipe is shortened, the refrigeration efficiency is increased and the equipment construction is unnecessary, so the effect of shortening the air and reducing the construction cost can be expected.

Second, by installing a damper incorporating an air conditioning system in an integrated refrigerator, a significant energy saving effect can be expected as a natural refrigeration system using outside air.

1 is a conventional agricultural cold storage refrigeration system diagram.

Figure 2 is a frozen product storage system refrigeration system diagram of the present invention.

<Explanation of symbols for main parts of drawing>

1: compressor 6: condensation

2: condenser 7: evaporation coil

3: Expansion valve 8: 홴

4: evaporator 9,10,11,12 damper

5: condensation coil 13: room sensor

14: outdoor sensor

2 is a refrigeration system for low temperature storage of agricultural products of the present invention.

Usually produce is harvested in autumn and stored at room temperature + 5 ℃ until spring. In other words, the operating rate of agricultural cold storage is quite high in winter.

On the other hand, Table 1 shows that the average outside temperature in winter (December to February) is kept below a certain temperature.

〈Excerpts from the Meteorological Agency Internet site reference library〉

Thinking about it here,

Under a certain temperature through the outdoor sensor 14 in winter, the compressor 1 is stopped, and the outside air is introduced into the room while the damper 9 and the damper 10 are opened and the fan 8 is operated.

When the room temperature sensor 13 operates at a constant temperature at all times, the damper 9 is closed to prevent the inflow of outside air.

At a certain temperature or more through the outdoor sensor 14, the damper 12 is opened while the compressor 1 is in operation and the fan 8 is operated to pass the indoor air through the suction refrigerating device, and then the damper 10 is opened again. Maintain proper indoor temperature with system to supply back to the room.

At this time, the defrost of the evaporation coil (7) is a system method of the natural defrosting method by opening the damper (9) to introduce the outside air to operate the fan (8) to send to the outside through the damper (11).

The present invention as described above, the refrigerant piping is shortened by the integration of the refrigerating device, the refrigeration efficiency is increased, the equipment construction is unnecessary, the air shortening, the price can be reduced effect, compared to the full operation of the winter freezer in the cold storage of agricultural products Significant energy savings can be achieved.

In addition, there is an advantage that the trial and error that comes from the knowledge of the farmers can fully cope in advance with the standardization of the refrigeration apparatus.

Claims (1)

Integrated chiller system structure by adopting air-conditioning method using outside air through damper to maintain proper temperature of agricultural cold store