JPS6337304B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pre-cooling device for maintaining the freshness of vegetables, fruits and vegetables, etc. immediately after harvesting, and its purpose is to store vegetables or fruits and vegetables in a pre-cooled material storage case having air circulation holes on the side. The passage area of the cold air in the cooling chamber can be easily adjusted depending on the storage capacity of the pre-cooled items and the pre-cooled items so that the cold air does not pass through any area other than the pre-cooled items, and almost 100% of the cold air is wasted. The purpose is to allow efficient precooling to occur by passing it through the precooled material. Conventional precooling devices include, for example, a ceiling slit downward blowing type as shown in the first figure, a ceiling duct blowing type as shown in the second figure, a central suction differential pressure chamber type as shown in the third figure, and a central suction type as shown in the fourth figure. Differential pressure fan built-in type, wall suction individual close-contact type as shown in Figure 5, etc.
There are various configurations, but in all of these, the cooling air circulation device 1 or the cold air circulation inlet 2 leading to it is provided in the ceiling or part of the side wall 4 of the cooling chamber 3, so it is not possible to pre-cool. If the storage capacity differs depending on the pre-cooling amount of item 5 and the pre-cooling item,
It is necessary to adjust the passage area of the cold air to suit the situation, and in the cases shown in Figures 1, 2, and 5, the angle of the slit plate 6 is changed or the air flow rate of the cooling air circulation device 1 is controlled. I was there. However, in order to uniformly and accurately adjust the angles of a large number of slit plates 6, a separate device is required for this purpose, which has the drawback that the device and equipment are complicated and expensive. Objects 5 are arranged in advance on both sides of the front of the cold air circulation inlet 2 in two rows facing each other at the same height as the cold air circulation inlet 2 to form a cold air flow passage 7 having approximately the same cross-sectional area as the cold air circulation inlet 2. If the upper surface of the flow path 7 and the end opening 8 are shielded with the sheet 9, it is possible to efficiently precool only the area of the cold air flow inlet 2, and the cooling chamber 3 is completely filled with precooled material. 5 was loaded, the cold air could not sufficiently reach every corner of the pre-cooled material 5, resulting in insufficient pre-cooling and low efficiency. Furthermore, as shown in Figure 5, a cooling air circulation device 1 is provided on the ceiling of the cooling chamber 3, and a large number of cold air inlets 2 are provided on substantially the entire surface of both side walls of the cooling chamber 3 to pre-cool the pre-cooled material 5. When the number of pre-cooled objects 5 is small, the area through which cold air passes through the pre-cooled objects 5 becomes larger than necessary, and proper pre-cooling is not performed.
As a result, there was a drawback that the precooling efficiency deteriorated. In the present invention, a cold air circulation wall is provided at a required interval in front of one side wall of a cooling chamber, and a cold air circulation shielding member is provided along the front surface of the cold air circulation wall so as to be movable and adjustable in the vertical and horizontal directions. , it can easily expand and contract according to the type and volume of the pre-cooled product, and the area through which the cold air passes can be easily adjusted so that the cold air does not pass through any areas other than the pre-cooled product, and almost 100% of the cold air is wasted. This method eliminates the drawbacks of the conventional method by allowing it to pass through the pre-cooled material and efficiently perform pre-cooling. An embodiment of the present invention shown in FIGS. 6 to 11 of the accompanying drawings will be described in detail below. In FIGS. 6 to 8, reference numeral 10 is a cooling chamber , and a cold air circulation wall 13 is required on the front surface of one side wall 11 of the cooling chamber 10, which is provided with a large number of cold air inlets 12 (slits, long holes, etc.) over almost the entire surface. They are erected with an interval a between them, and the interval a forms an intake duct 14. Reference numeral 15 denotes a cooling air circulation device that is installed on the ceiling of the cooling room 10 and includes a well-known cooler 15a and a blower 15b; 16 is provided along the front surface of the cold air circulation wall 13 so as to be movable and adjustable in the vertical and horizontal directions; For example, as shown in FIGS. 9 to 11, cold air circulation shielding members 16a, 16b, and 16b made of roll-shaped rolled-up and stretched sheets are installed at the upper and left and right sides of the cold air circulation wall 13 , respectively. (It may be provided on one side) and can be freely expanded and contracted electrically or manually. 16c is a rotating shaft portion of the cold air flow shielding member 16a, 16d is a known geared motor or manual hoisting device for driving the rotary shaft portion, and 16e is a rotary shaft portion of the cold air flow shielding member 16.
16f is a flat iron plate for a weight attached to the end portion of a;
6g is an angle steel attached to the end portions of the cold air circulation shielding members 16b, 16b, and a first
0 to 11, a movable hanging wheel 16h is attached, and the movable wheel 16h is rotatably engaged with the guide rail 16i. 16j is a lower guide rail made of the angle steel 16g.
17 is an entrance/exit door of the cooling chamber 10 ; 18 is a cardboard case for storing pre-cooled materials, and a required number of air circulation ports 18a are formed on the side surfaces thereof. 19 is a palette. Next, the effect will be explained. When pre-cooling the pre-chilled material using this device, the cardboard cases 18 containing the pre-chilled material are arranged in an orderly manner on the pallet 19 and mounted at the required height to form one unit block, and placed close to the front of the cold air circulation wall 13 . and install it. After installing the required amount of air to be precooled in several blocks as described above, the surplus cold air inlet 12 is installed as shown in Figure 8.
When the cold air circulation shielding members 16a, 16b, and 16b are pulled out from the top and from both the left and right sides to block the air flow, and the cooling air circulation device 15 is activated, the circulating cold air flows through the air circulation openings 18 of each cardboard case 18 .
The pre-cooled material enters from a to 18a and is cooled successively. Further, in this case, the inside of the intake duct 14 behind the cold air circulation wall 13 becomes negative pressure, and the cold air flows into the seventh
It circulates within the cooling chamber 10 as shown by the arrow in the figure. According to the present invention, when pre-cooling the pre-cooled object, the inside of the cooling chamber is cooled by circulating cold air from the cooling air circulation device, and the area through which the cold air passes is formed to have a size that covers almost the entire surface of one side wall of the cooling chamber. The cold air flow shielding member, which is movable vertically and horizontally along the front surface of the cold air circulation wall, allows the cold air to flow through the cold air inlet to areas other than the precooled items, depending on the storage capacity of the precooled items and the precooled items. Since it can be properly adjusted at all times by appropriately shielding or opening so that it does not pass through, almost 100% of the cold air can be passed through the pre-cooled object without wasting it, and efficient pre-cooling can always be achieved. Further, since the cold air circulation shielding device is designed to be able to expand and contract along the front surface of the cold air circulation wall, it is easy to adjust and can be used widely in the cooling room without taking up much space. In addition, the storage capacity of pre-cooled materials per unit volume can be larger than that of conventional products, and after completion of pre-cooling, it can be used as a cold storage by simply changing the operation system of the cooler 15a. It has various features such as being able to be stacked in two or three stages and mounted on pallets if there is a surplus in the wall suction height of the cold air circulation wall. In this embodiment, the cold air circulation shielding device is described as being of a roll-type winding type or a stretched sheet type, but it is not limited thereto. etc., various types can be used.

[Brief explanation of the drawing]

1 to 5 are partially cutaway perspective views showing examples of conventional devices, FIG. 6 is a partially cutaway overall perspective view for explaining the present invention, FIG. 7 is a side sectional view of the same, and FIG. 8 is a same side view. cross section,
FIG. 9 is an explanatory perspective view of the upper cold air circulation shielding member;
Fig. 10 is an explanatory perspective view showing a part of the side cold air circulation shielding member, and Fig. 11 is an explanatory partial side sectional view showing the mounting positional relationship between the upper cold air circulation shielding member and the side cold air circulation shielding member. It is. 10 ...Cooling room, 11...One side wall, 12...Cold air inlet, 13 ...Cold air circulation wall, 14...Intake duct, 15 ...Cooled air circulation device, 15a...Cooler, 15b...Blower , 16 ...cold air circulation shielding device, 16a, 16b...cold air circulation shielding member, 1
6c... Rotating shaft portion, 16d... Geared motor or manual hoisting device for driving the rotating shaft portion, 16e...
Flat iron plate for weight, 16f...Rotating shaft part, 16g...Angle steel, 16h...Movable wheel for hanging, 16i
...Guide rail, 16j...Lower guide rail, 1
7...Entrance/exit door, 18 ...Cardboard case for storing pre-cooled materials, 18a...Air circulation opening, 19...Pallet.

Claims (1)

[Claims] 1. A precooling device that performs precooling with precooled material stored in a precooled material storage case having air circulation ports on the side, which is equipped with a cooling air circulation device and has a large number of cold air inlets on the front side of one side wall of the cooling chamber. A cold air circulation wall is provided over almost the entire surface, an intake duct is formed between the cold air circulation wall and the one side wall, and the cooling air circulation wall is movable and adjustable in the vertical and horizontal directions along the front surface of the cold air circulation wall. A pre-cooling device comprising a cold air circulation shielding device equipped with a cold air circulation shielding member.