JPH0160757B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is mainly concerned with cooling for freezing, dehumidifying and drying warehouses suitable for freezing, dehumidifying and drying fresh foods such as fish and meat with cooling air. Regarding equipment.

[Conventional technology]

Conventionally, in a cooling device that freezes or refrigerates food such as fish or meat, or dries it by cooling and dehumidifying, a cooling chamber 4 is provided in the main compartment 1 as shown in Fig. 3, and the cooling chamber 4 is equipped with a cooler. The cooling air from 6 is sent through the air hole 2 of one side wall 19a of the cooling chamber structure 19 through the feed duct (8), and the air in the cooling chamber 4 is sent from the air hole 2 of the other side wall 19b of the cooling chamber structure. The air is sucked into the cooler 6 through the return duct 20, recooled, and blown out into the feed duct 8.

In such a conventional cooling device, the flow of air through the cooling chamber 4 is fixed in one direction, so a large amount of heat is taken away from the object 5 on the upstream side of the air flow. However, the amount of heat taken away from the downstream part is small, so it takes time to cool the downstream part.

In fact, in a food storage for freezing food, there is a time delay of about 3 to 4 hours for the downstream part of the object to be cooled to be cooled to the same temperature as the upstream part, and the cooling time increases accordingly.

In addition, since the cooling rate is affected by the air flow rate, a differential pressure method was used to uniformize the air blowing inside the cooling chamber 4, but in actual equipment, bypass air or static pressure is used at the inlet and outlet of the object to be cooled. Due to its effectiveness, it has the disadvantage that it is difficult for the wind to flow uniformly.

[Object of the present invention]

An object of the present invention is to enable the object to be cooled to be efficiently and uniformly cooled in a short period of time by switching the direction of air blowing to the object to be cooled between forward and reverse directions at each required time. It's because I did it.

[Configuration of the present invention]

The cooling device of the present invention includes an internal chamber structure provided in the main compartment, and left and right ventilation ducts and an upper duct formed between the left and right side panels and ceiling plate of the internal room structure and the main compartment body, and The inner chamber structure is divided into an upper cooler chamber and a lower cooling chamber by an upper and lower partition plate, and the cooler chamber has an air inlet on the side and an air outlet opening in the upper duct. The cooling chamber has left and right ventilation ducts communicating with each other through air holes drilled in the side panels of the inner chamber structure, and the left and right ventilation ducts in the upper part or the left and right ventilation ducts have left and right ducts that open and close in reverse. A pair of blow-off dampers is provided, and communication holes are formed on the left and right sides of the upper and lower partition plates, so that not only the communication holes are opened and closed in opposite directions, but also the left and right blow-off dampers are opened and closed in opposite directions. It has a structure with a pair of left and right suction dampers.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to a specific example shown in the accompanying drawings.

In FIG. 1, reference numeral 1 indicates a main compartment, and an internal chamber structure 3 is provided in the main compartment.
Left and right ventilation ducts 8 are provided between the left and right side plates 3a, 3b and ceiling plate 3c of the interior room structure 3 and the room main body 1.
a, 8b and an upper duct 8c are formed.

The inner chamber structure 3 is further divided into a lower cooling chamber 4 and an upper cooler chamber 11 by a horizontal upper and lower partition plate 10, and inside the cooler chamber 11 is a cooler 6 with an air suction port 6a opening at the lower side. is installed, and the air outlet 9 of the cooler is connected to the upper duct 8.
It opens in c. Note that the reference numeral 7 is a fan of the cooler.

In addition, the cooling chamber 4 has left and right wind ducts 8 through air holes 2a and 2b formed in the left and right side plates 3a and 3b.
It communicates with a and 8b.

A pair of blow-out dampers 13 and 14 are provided on the left and right sides of the upper air duct 8c, and both dampers are configured to alternately open and close in such a way that when one opens, the other closes.

A pair of communication holes 1 are provided on the left and right sides of the upper and lower partition plates.
5 and 16, and are provided with left and right suction dampers 17 and 16, and not only the opening and closing of both suction dampers are reversed to each other, but also the opening and closing of the blowout dampers are alternately reversed. There is.

That is, when the left blow-off damper 13 is closed and the right blow-off damper 14 is open, the right suction damper 16 is closed but the left suction damper 17 is open, and conversely, the left blow-off damper 13 is open and the right blow-off damper 14 is closed. While the right suction damper 18 is open, the left suction damper 17 is closed.

In the cooling device of the above-described embodiment, the air cooled by the cooler 6 is sent into the upper duct 8c from the air outlet 9, but as shown in FIG. is open, the right suction damper 18 is closed and the left suction damper 17 is open, so the cooling air flows into the cooling chamber 4 from the air hole 2 on the right side panel of the cooling chamber through the right blower duct 8b as shown by the solid line arrow. The air that has cooled the object to be cooled 5 is sucked into the cooler 6 through the left communication hole 15 in which the suction damper 17 is open, and is repeatedly cooled and blown out into the upper duct.

If this air blowing operation is continued, the object to be cooled will be cooled and frozen faster on the upstream side (the right side in the drawing) of the air flow than on the downstream side (the left side in the same figure).

Then, after the required time has elapsed, the opening and closing of each of the dampers is reversed by a command from a timer or the like.

That is, the left blowout damper 13 and the right suction damper 1
8 is opened, and the right blowout damper 14 and left suction damper 1 are opened.
8 is closed.

By doing so, the cooling air from the cooler 6 is directed to the left air duct 8a as shown by the two-dot chain line.
The air is sent into the cooling chamber 4 from the air hole 2 on the left side plate for the cooling chamber, and flows in the opposite direction inside the cooling chamber to cool the object 5 to be cooled, and the right communication hole 16 where the suction damper 18 is open The air is sucked into the cooler 6 through the duct, recooled, and blown out into the upper duct.

Therefore, cooling air flows through the object to be cooled from the opposite direction every required time.

[Effects of the present invention]

As described above, according to the present invention, the direction of the cold air flow hitting the object to be cooled can be reversed, so the object to be cooled can be cooled, frozen, dehumidified, dried, etc. more uniformly and in a shorter time than in the case of only one direction. It has the advantage of being able to do

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of a cooling device according to the present invention, FIG. 2 is a plan view taken along the line ``--'' in FIG. 1, and FIG. 3 is a diagram showing a conventional cooling device. In the figure, 1...Main body, 2a, 2b...Air holes, 3
...Inner chamber structure, 4...Cooling room, 5...Object to be cooled, 6...Cooler (6), 7...Fan, 8a...Left air duct, 8b...Right air duct, 8c... ... Upper duct, 9 ... Air outlet, 10 ... Partition plate, 11
...Cooler room, 13,14...Blower damper, 1
5, 16... Communication hole, 17, 18... Suction damper.

Claims (1)

[Claims] 1. An inner room structure is provided in the main room structure, and left and right ventilation ducts and an upper duct are formed between the left and right side panels and ceiling plate of this inner room structure and the main room body, and the inner room structure has upper and lower air ducts. The cooler room is divided into an upper cooler room and a lower cooling room by a partition plate.
A cooler having an air inlet on the side and an air outlet opening into the upper duct is provided, and the cooling chamber is communicated with the left and right blower ducts through air holes drilled in the side plates of the inner chamber structure, The upper left and right ventilation ducts or left and right ventilation ducts have left and right 1 opening and closing that are reversed to each other.
A pair of blow-off dampers is provided, and communication holes are formed on the left and right sides of the upper and lower partition plates, so that not only the communication holes are opened and closed in opposite directions, but also the left and right blow-out dampers are opened and closed in opposite directions. A cooling device characterized by having a pair of left and right suction dampers.