JPH0636718Y2 - Freshness preservation and recovery device - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field of the Invention The present invention relates to the processing of perishables used for the purposes of maintaining and recovering freshness of fresh food such as fresh fish and vegetables and fresh flowers, or thawing frozen foods. It relates to the device.

2. Description of the Related Art As an apparatus used for such an application, for example, as shown in FIG. 2, a water tank 1 for containing food is partitioned by a panel-like partitioning weir 2, and a discharge pipe 7 of a circulation pump 6 is provided. Immersion treatment tank 3 that opens and suction pipe 8 of circulation pump 6
And an overflow storage tank 4 having an opening formed therein, water sent from the circulation pump is jetted from the discharge port 7a, overflows the partition weir 2, flows into the overflow storage tank 4, and is again sucked. The circulating water is maintained at a predetermined low temperature by returning from the pipe 8 to the circulation pump 6 and by disposing the cooling pipe 9 of the refrigerator 5 provided near the water tank at the bottom of the water tank 1. There is known a device for maintaining the freshness of fish and shells that have been immersed in a basket 19 in the immersion treatment tank 3. (For example, the actual exploitation 63-16
8784 publication).

Such a device is a filter provided along the partition weir 2 when overflowing the partition weir 2 and entering the overflow storage tank from the immersion treatment tank.
Passing 10 prevents scales, vegetable debris, and debris from entering the pump. As shown in FIG. 3, the filter 10 comprises a substantially box-shaped overflow receiving frame 11 on the bottom of which a fine mesh 12 is stretched as a filter. 11a
Is a fitting edge that is fitted to the upper edge of the partition weir, and is formed along the inflow port provided by cutting out one side surface in the longitudinal direction of the overflow receiving frame 11, and by this fitting edge 11a, The filter 10 is
It is detachably attached to the partition weir.

By the way, in the above-mentioned device, the cooling water, which cannot be stored in the immersion treatment tank and overflows, is stored in the overflow storage tank. Even when a large amount of food is dipped, the water level of the overflow storage tank is determined to be lower than the height of the partition weir. However, in reality, the designed maximum amount of fresh food is rather rarely immersed, so that the water level in the overflow storage tank 4 tends to be low. Under such circumstances, when the cooling water falling from the filter 10 reaches the surface of the water, a large amount of droplets are generated and air is entrained in the stored water. The cooling water uses salt water in order to promote the sterilization action of the underwater input and to revive the seafood and vegetables, so the droplets containing salt generated at this time will not flow into the overflow storage tank. 4 is scattered from the gap of the lid that covers the upper surface of No. 4, causing rust to occur in the surroundings. In particular, since the refrigerator is equipped with a condenser fan, even if the refrigerator is installed above the water tank, salt damage cannot be prevented and the life of the device is shortened. Has become.

This is particularly remarkable in the type in which the refrigerator is provided next to the water tank. Such salt damage can be prevented to some extent by improving the lid, but on the upper surface of the overflow storage tank 4, the refrigerator 5, the cooling pipe 9 made of a corrosion-resistant metal such as titanium, and the cooling water are provided. Wiring such as an ozone gas supply pipe for sterilization and disinfection, a temperature detector for detecting the temperature of the cooling water, and the like are entered, and the inside of this storage tank 4 is not only for cleaning the filter but also for other parts. However, because hygiene requires cleaning once a day, the ease of removing the lid and cleaning the inside of the storage tank is also a very important requirement.
If this is troublesome, the user may avoid using the lid and use it with the lid removed.Therefore, make the opening surface as wide as possible to facilitate cleaning inside the tank. In consideration of the ease of detaching and handling the lid, it is practically difficult to provide the lid without a gap. Further, the air entrained by the fall of the filtered water enters the suction pipe as it is, which causes cavitation in the circulation pump and also shortens the life of the pump.

Configuration of the Invention The present invention has been made under such a background, and its gist is to provide a water tank having a discharge port and a suction port of cooling water near the bottom, and the suction port and the discharge port. A cooling water circulation pump provided in the cooling water circulation flow path to be connected, and a refrigerator for maintaining the cooling water in the water tank at a predetermined temperature, and a dipping treatment in which the discharge port is opened by a partition weir in the water tank. In an apparatus for treating perishable matter, which is partitioned into a tank and an overflow storage tank having an inlet opening, an overflow filter provided adjacent to the partition weir in the overflow storage tank has an overflow receiving frame. By surrounding the filter body provided so as to close the bottom surface of the overflow receiving frame and the falling area of the cooling water that has passed through the filter body, diffusion of splashes and diffusion of bubbles trapped in the stored water are prevented. A perishable product characterized by comprising a skirt portion provided for the purpose of It is in the freshness maintenance and recovery device. Hereinafter, a detailed description will be given based on examples.

FIG. 1 shows an embodiment of the present invention, and is the same as the conventional perishables processing apparatus shown in FIG. 2 except for the configuration of the filter 20, so that the same functional members are the same. Description will be given with reference numerals. In FIG. 1, a water tank 1 covered with a heat insulating wall includes a dip treatment tank 3 for treating fresh food by a plate-shaped partition weir 2, and salt water overflowing from the treatment tank 3 on the upper edge 2a of the partition weir. It is partitioned into an overflow storage tank 4 that is temporarily stored. The refrigerator 5 is supported above the storage tank 4 by a support leg 5a standing on the upper edge of the overflow storage tank 4 in order to save space. Reference numeral 6 denotes a cooling water circulation pump that sucks cooling water composed of saline from the suction port 8a and sends it out from the discharge port 7a. The suction port 8a and the discharge port 7a are respectively the overflow storage tank 4 and the immersion treatment tank. There is an opening near the bottom of No. 3. 9
Is a cooling pipe that enters the overflow storage tank from the refrigerator 5, meanders mainly near the bottom surface of the immersion treatment tank, and then returns to the refrigerator from the top opening of the overflow storage tank again. Such a configuration is exactly the same as the conventional device.

The filter 20 forming the characteristic configuration of the device of the present application is the same as the conventional filter 10 shown in FIG. 3, except that the lower end edge of the overflow receiving frame 11 which functions as a hopper for receiving the overflow flowing over the partition weir 2 is provided. Tubular skirt 25 with a rectangular cross section that extends downward
Is added to the conventional filter 10. That is, the overflow receiving frame 21 has a fitting edge 23 having an inverted L-shaped cross section on one side surface in the longitudinal direction, and the fitting edge 23 is detachably fitted to the upper edge 2a of the partition weir 2. By doing so, it is attached to the partition weir. The upper side of the fitting edge 23 serves as an overflow inlet, and the other three side surfaces forming the overflow receiving frame are one step higher than the fitting edge. Reference numeral 22 is a filter net provided in a state of closing the bottom surface of the overflow receiving frame. However, in this embodiment, the overflow receiving frame 21
Since the skirt portion 25 integrally formed below the receiving frame 21 is integrally configured, it does not substantially mean that the overflow receiving frame and the skirt portion are separated, but the filter body The connecting portion of the filter net 22 as the above and the overflow receiving frame 21 forms the lower end of the receiving frame 21, the skirt portion 25 is at least near the lower end,
It is desirable to always be immersed in cooling water. If the skirt portion 25 is configured separately from the overflow receiving frame 21, the skirt portion
The material of 25 may be flexible, such as vinyl film, as long as it is convenient for cleaning.

FIG. 4 shows another embodiment of the present invention, which is different from the above embodiment in that the fixed skirt portion 35 is provided on the side surface of the partition dam 2.
It consists of an enclosing wall that is fixed in one piece and has a U-shaped cross-section.
An overflow receiving frame 31 having 32 is detachably attached by a fitting edge 33 fitted to the upper edge of the partition weir 2 and a fitting portion 31a formed by slightly bending the lower end edge of the overflow receiving frame 31 inward. The point is that it has a fitted structure.

FIG. 5 shows still another embodiment of the present invention, which is different from the embodiment shown in FIG. 4 in that the lateral cross section of the partition weir 2 is integrally fixed to the side surface of the partition weir 2. Partition weir 2 of skirt 45
The surface facing to is composed of an inclined plate 45a inclined toward the partition weir 2 side. The overflow receiving frame 41, which is detachably fitted into the skirt portion 45, has the same structure as the overflow receiving frame 11 shown in FIG. 3 and has a filter body 42 provided at the bottom thereof.
Since the cooling water that has passed through falls on the inclined plate 45a and is guided to the partition weir side by the slope and flows down along the partition weir,
Small and small splashes. If the pump suction port 8a is opened at a remote position on the opposite side of the partition weir, almost no bubbles are sucked.

In the above-mentioned examples, the filter bodies are all mesh-like ones, but it goes without saying that known filter media may be employed as necessary. Further, as for the structure for mounting the filter, any structure can be adopted, such as a structure in which only the filter body can be removed from the overflow receiving frame, as long as the convenience of cleaning, removal, and assembly is not significantly impaired.

Effects In the device according to the present invention, the falling area of the cooling water falling from the filter is covered by the skirt portion, and the lower end of the skirt portion extends to the stored cooling water and reaches the reaching area of the bubbles entrained together with the falling water flow. Therefore, the generated droplets do not leak to the outside of the filter, and most of the generated bubbles are extinguished in the skirt portion, and the air flowing into the pump is drastically reduced. Thus, corroding metal products within 1 meter around the refrigerator and this type of equipment, even stainless steel,
It is possible to significantly reduce the salt damage that has been corroded in about two years, and it is effective in significantly improving the service life of the pump and the refrigerator.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention. FIG. 2 is an explanatory diagram showing an example of a conventional technique. FIG. 3 is a perspective view showing a filter portion in FIG. FIG. 4 is an explanatory view showing the main part of another embodiment of the present invention. FIG. 5 is an explanatory view showing a main part of still another embodiment of the present invention.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location A23B 4/07 7/04 9281-4B 7/045 9281-4B A23B 7/04

Claims (3)

[Scope of utility model registration request] 1. A water tank having a cooling water discharge port and a suction port near the bottom, a cooling water circulation pump provided in a liquid circulation flow path connecting the suction port and the discharge port, and a water tank. A perishable food processing device having a refrigerator for cooling the circulating liquid therein and partitioning the water tank by a weir into an immersion processing tank having the discharge port opened and an overflow storage tank having the suction port opened. In the overflow storage tank, an overflow filter provided adjacent to the partition weir comprises an overflow receiving frame, a filter body that forms a bottom portion of the overflow receiving frame, and a filtrate that has passed through the filter body. A freshness preservation / recovery device comprising a skirt portion enclosing a falling area. 2. The freshness-keeping / restoring device according to claim 1, wherein the overflow receiving frame and the skirt part are integrally formed. 3. A fresh model registration claim according to claim 2, wherein the skirt portion is provided so as to be inclined such that the facing portion of the skirt portion with the partition weir approaches the partition weir as it descends. Freshness preservation and recovery device.