JPH0279921A - Apparatus for preserving fishes or shellfishes - Google Patents

Abstract

PURPOSE:To preserve fishes or shellfishes in an intact live state by covering the fishes or shellfishes with a water absorbing sheet from the bottom (water tank) of a preservation container and feeding cold air from the upper side of the water absorbing sheet. CONSTITUTION:A water absorbing sheet 3 is laid on the bottom (water tank) 2 of a preservation container 1 and both ends thereof are raised up along the container wall surfaces to cover fishes or shellfishes. Water is fed so as to hide gills of the fishes or shellfishes and a cooling material 7 is arranged in a cooling chamber 16 between an intermediate lid 5 and an upper lid 4. Vent holes 13 and 14 are regulated to cool water sucked up with the water absorbing sheet 3 and feed water to the fishes or shellfishes.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a preservation device for fresh seafood, etc., and more specifically, it relates to a preservation device for preserving fresh seafood, etc. This invention relates to a storage device for seafood, etc. that can be stored for a period of time.

(Prior art) Conventionally, this type of device has used a method of filling an insulating container with seafood, adding ice, etc., or adding a filler such as sawdust to keep the container warm.However, However, with these methods, it was impossible to preserve fish and shellfish alive for long periods of time due to lack of oxygen due to respiration and temperature control. proposed a ``container for storing bait, etc.'' This container is intended for preserving the target organisms ``lugworms, sardines, and rockfish JR'', and a part of the container is equipped with ventilation holes. A water tank is provided in a part of the container, and the water supply mechanism uses the capillary induction phenomenon caused by a water-absorbing sheet.

This container has the advantage that an appropriate amount of moisture can be supplied to the preserved organism by the capillary induction phenomenon caused by the water-absorbing sheet, and the preservation environment can be maintained in a good condition.

[Problem that the invention seeks to solve]

However, in the case of the storage container mentioned above, oxygen to the preserved specimen,
In some cases, it may not be possible to say that the water supply is adequately adjusted. That is, in the case of the conventional example, it can be said that it is not possible to adjust the temperature of the living organism, and to adjust the necessary amount of oxygen and moisture supply according to the amount of respiration at that time.

Therefore, the inventor of the present invention conducted various studies on growth conditions, storage conditions, etc. of fish and shellfish, and as a result, learned the following. That is, (1) When the individual temperature of fish and shellfish decreases, a state of napping occurs, and the metabolic activity decreases to one-tenth to one-tenth of that below.

■ In order to maintain the best quality of fish and shellfish to be preserved, it is necessary to reduce energy metabolic activity as much as possible, and simply keeping them alive will reduce their quality.

■ In order to return fish and shellfish to the aquarium after they have been stored and transported, it is important to control the temperature of the individual fish, and avoid sudden temperature changes and temperatures that may affect the cells of the fish and shellfish. Must not be.

The present invention was devised in response to the above-mentioned problems, and its purpose is to provide a system for preserving seafood that satisfies the necessary conditions depending on the type and quantity of seafood to be preserved. The purpose is to provide storage devices of the same type.

[Means for solving problems]

The method for preserving fish and shellfish of the present invention as a means for achieving the above object includes disposing or forming a water tank in a fish and shellfish storage container, disposing a water absorbent sheet in the water tank, and disposing the water absorbent sheet. Both ends of the sheet are raised along the inner wall surface of the container, and a drop is provided at both upper ends to cover the seafood, and cool air can be supplied from above the water-absorbent sheet covering the seafood, and the water-absorbent sheet It consists of a structure in which cold water is circulated and supplied to seafood by capillary induction phenomenon.

In addition, part or all of the upper or lower surface of the water absorbent sheet in the aquarium may be made of natural aggregate particles, artificial ceramic plates, or ceramic particles that contain various mineral components and have a water purification function. A configuration in which a far-infrared radiator or a layer of natural aggregate or artificial ceramic particles is placed, and a perforated plate is placed on top of the layer, and an oxygen solid substance that reacts with water to generate oxygen gas is placed in the aquarium. Alternatively, as the water-absorbing sheet, a sheet with a far-infrared radiator attached or incorporated therein may be used, if necessary. Furthermore, the water level in the aquarium is set to a certain level of the individual preserved fish and shellfish.

[Effect]

The fish and shellfish preservation device of the present invention based on the above configuration stores the water in the aquarium through the water-absorbent sheet laid in the container in a storage container formed of a heat-insulating container or the like. In addition, the water absorbent sheet cools the water produced by the water-absorbing sheet with cold air to turn it into cold water, and by supplying the cold water, it acts to lower the metabolic conditions of the preserved specimens.

Furthermore, in the case of a structure in which solid oxygen is placed in the aquarium, it is possible to sufficiently replenish the amount of oxygen required for respiration with a simple structure and a high dissolved oxygen concentration in the water.

〔Example〕

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

Here, Figs. 1 to 4 show examples of the present invention, Fig. 1 is a schematic longitudinal sectional view of this embodiment, Fig. 2 is a schematic longitudinal sectional view of another embodiment, and Fig. 3 is a plan view. FIG. 4 is a schematic longitudinal sectional view of another embodiment.

The fish and shellfish preservation device of this embodiment has a structure in which a storage container 1 has a water tank 2 and a water-absorbing sheet 3 inside it, and an upper lid 4 and an inner lid 5 on the upper part of the storage container 1. .

The storage container 1 is formed as a box made of a heat insulating material such as expanded polystyrene. A water tank 2 is formed at the inner bottom of the tank 2. In other words, the storage container 1 itself constitutes a water tank, and a storage chamber 7 is formed in the upper part of the water tank 2 via a perforated Rosdol 6. The configuration is as follows.

Further, the container 1 may have a double or triple structure, if necessary, and may have a structure in which a coolant (water) can be disposed or circulated.

The water tank 2 is configured as a tank with an upper opening at the bottom of a storage container l, and aggregate particles (natural aggregate particles, artificial ceramic particles, etc.) are stored inside the tank through a water-absorbing sheet 3.
An aggregate particle layer 8 consisting of the following is provided. Aggregate particles 11
As the aggregate particles constituting 8, quartz porphyry pieces, andesite pieces, olivine pieces, coral sand, zeolite, carpenter ceramics, activated carbon, etc. are used alone or in a mixture of two or more types. Here, the purpose of providing the aggregate particle layer 8 is to purify the water inside the aquarium 2, to elute the mineral components contained in the aggregate, or to impart antibacterial effects to the water by emitting far infrared rays, etc. This is due to the fact that the The amount of liquid such as water or seawater put into the water tank 2 is set to be enough to cover the aggregate particle layer 8. However, it is important to set the amount of water required according to the type of seafood to be preserved. Furthermore, solid oxygen 9 is disposed inside the aquarium 2 and reacts with the water in the aquarium 2 to generate oxygen gas, thereby increasing the amount of dissolved oxygen in the aquarium 2. Note that an oxygen supply tank may be provided in place of the solid oxygen 9, or equipment capable of supplying oxygen may be used.

In addition, a water absorbent sheet 3 laid on the inner bottom of the aquarium 2
The storage chamber 7 is constructed such that its both ends rise along the inner wall surface la of the storage container l, and a drop is formed at the upper end.
In other words, it is arranged so that it can cover the seafood. Here, as the water absorbent sheet 3, a filtration sheet material such as paper or cloth that causes capillary action is used, and the water (liquid) in the water tank 2 is guided to the entire surface of the sheet by the capillary action, and inside the storage chamber 7. It has a structure that allows it to be kept in a moist state. Note that the sheet 3 is not limited to the configuration in which it is laid all over the inner bottom of the aquarium 2, but may be partially laid, or in a configuration in which two sheets on the left and right are placed adjacent to each other or separated from each other. Alternatively, natural aggregate, artificial ceramic particles, etc. may be folded into, incorporated into, or adhered to the water absorbent sheet 3. The water-absorbing sheet itself can be used as a far-infrared radiator sheet or as a sterilizing sheet. In this case, the separately described aggregate particle layer 8 and the like can be omitted if necessary.

Storage chamber 7 is a rosdol (perforated plate) installed in aquarium 2.
6, the storage container 1 and the inner lid 5,
The structure is designed to preserve fresh seafood.

In addition, the storage room 7 usually has a partition liner 10 (a third partition).
(See Figure 4) is installed, and the 6-partition net 1 is configured to prevent the stored seafood from shaking, etc.
0 may be a vertical partition (see Fig. 3) or a horizontal partition (see Fig. 4), and each may be used alone or in combination depending on the type of seafood. In addition, the seafood itself may be wrapped in a moistened water-absorbing sheet.

The upper lid 4 and the inner lid 5 arranged on the upper part of the storage container l are
Like the storage container 1, it is made of a heat insulating material such as expanded polystyrene. The upper lid 4 has a structure that can be opened and closed with respect to the inner lid 5, and is configured as a plate-shaped lid body, and the inner lid 5 has the following structure:
A central portion 11 protrudes downward, and both ends 12 are detachably attached to the storage container 1. In addition, the inner lid 5 has a double structure in which the bottom part is made up of two plate-shaped bodies, each of which has a plurality of slit-shaped ventilation holes 13.13..., 1414...
. is formed so that the ventilation condition with the storage chamber 7 can be adjusted by adjusting the upper ventilation hole opening adjusting plate 15. Moreover, between the upper lid 4 and the inner lid 5,
A cooling chamber 16 is formed in which a cooling material 17 is placed. That is, the cold air produced by the coolant 17 in the cooling chamber 16 is conducted through the slit-shaped ventilation holes 13,14. Here, as the coolant, a low temperature maintaining material such as ice or glue is used, and in the case of a special coolant, one that has been cooled in advance is used. Note that it is clear that the inner lid 5 may be constructed of a net.

Next, a case will be described in which the storage device of this embodiment is used for sea bream as seafood.

First, a water absorbent sheet 3 is laid on the inner bottom (water tank) 2 of the storage container 1, and both ends of the sheet are raised along the container wall.
At the same time, an aggregate particle layer 8 and solid oxygen 9 are arranged on the upper surface of the water absorbent sheet 3 at the bottom of the container, and the required amount of water to be stored r 11 is supplied into the water tank 2. . Here, it is preferable that the amount of water is enough to cover the fins of rlJIJ.
3! Arrange the r Ill in the storage chamber 7 formed on the upper part of the Rosdol 6 to be stored one by one using a partition net, and place the end of the water absorbent sheet 3 inside the storage chamber 7. Cover the fish body. In addition, a coolant 1 is provided in a cooling chamber 16 formed between the inner lid 5 and the upper lid 4.
7 and adjust the ventilation holes 13, 14 so as to adjust the heat conduction of cold air into the storage chamber 7.

The water inside the aquarium 2 after the above-mentioned preliminary preparation becomes a liquid with a high dissolved oxygen concentration (and contains minerals that have an antibacterial effect) due to the reaction with the solid oxygen 9, etc. The reaction with oxygen 9 generates oxygen gas in the aquarium 2, and the oxygen gas dissolves in the water, increasing the dissolved oxygen concentration in the water. The gas partial pressure is increased, and the aggregate particle layer 8
Minerals are eluted into the water from the aggregate, and the water in the aquarium has a high dissolved oxygen concentration and contains minerals. Then, the water is sucked up by the water-absorbent sheet 3 and above the storage chamber 7 along the wall surface of the storage container 1 due to its capillary action, and is also guided and sucked at a point where it falls from the plywood 18, and is drawn into the storage chamber 7. From above 7'! J.I.
Water is uniformly distributed and supplied (water supplied) from the upper surface of J. Here, the water supplied comes into contact with the catfish and skin of the sea bream, and
Sea bream j takes in oxygen through its fins, etc., and since the water is in an atmosphere with a high oxygen partial pressure and a high dissolved oxygen concentration, its metabolic conditions are improved. Further, the water is cooled by cold air supplied from the cooling chamber 16 through the ventilation holes 13 and 14, and is supplied into the storage chamber 7.

Further, the water supplied from the upper part of the storage chamber 7 sequentially flows down to the lower part of the storage container 1, and is repeatedly circulated through the water-absorbing sheet 3, at the same time being filtered by the sheet 3. Further, waste products, which are metabolic products excreted from 'Ill J, flow down with water supplied from the upper part, and are adsorbed and purified by the aggregate particle layer 8. Furthermore, by using natural aggregates and artificial ceramics, it is possible to purify water, prevent the proliferation of various bacteria, and stabilize the activity of preserved seafood using far infrared rays.

Note that the present invention is not limited to the embodiments described above, and includes modifications that can be carried out without changing the gist of the invention. Incidentally, in the embodiments described above,
In the above description, a cooling solid material such as ice is placed in the cooling chamber, and the solid material is used to supply cold air. However, the cold air may be supplied by other cold air supply means. It is also possible to arrange a far-infrared emitter such as a ceramic in the upper or lower position.Furthermore, in addition to r lIj, fish and shellfish to be preserved include, for example, catfish that breathe, r fugu1, shrimp, etc. It is clear that ``crustaceans'' can be used, and that worms, molluscs, etc. can also be preserved.

〔Effect of the invention〕

As is clear from the above explanation, according to the seafood preservation device of the present invention, a water absorbent sheet is disposed on the inner bottom of the container,
Both ends are raised along the inner wall surface of the container, and a drop is provided at both upper ends to cover the fish and shellfish, and the water in the aquarium is supplied to the fish and shellfish through the water absorbent sheet. Therefore, the water in the aquarium is uniformly supplied to the storage solids (seafood WI) through the water-absorbent sheet, and the water from the water-absorbent sheet is cooled by cold air to become cold water, and the cold water is supplied. It has the effect of lowering the metabolic conditions of preserved individuals.

In addition, in the case of the fish and shellfish preservation device of the present invention, in which solid oxygen is placed in the aquarium, the structure is simple, and the high dissolved oxygen concentration in the water can sufficiently replenish the amount of oxygen required for respiration. It has the effect of being able to

Furthermore, in the case of the seafood preservation device of the present invention, in which a natural aggregate layer or the like is placed at the bottom of the aquarium (container), far-infrared energy from the natural aggregate or artificial ceraminoku (far-infrared radiator) It also has an antibacterial effect on preserved specimens under conditions of reduced metabolic activity due to a drop in temperature, and further has the effect of stabilizing the activity of preserved specimens.

Therefore, according to the present invention, it is possible to reduce the metabolic activity of preserved fish and shellfish with a simple configuration, so that it is possible to transport the preserved fish and shellfish while maintaining their freshness.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention, FIG. 1 is a schematic vertical sectional view of this embodiment, FIG. 2 is a schematic longitudinal sectional view of another embodiment, and FIG. 3 is a schematic longitudinal sectional view of the present embodiment. The plan view and FIG. 4 are schematic longitudinal sectional views of another embodiment. ■...Storage container, 2...Aquarium, 3...Water absorbent sheet, 4...Top lid, 5...Inner lid, 6...Dish-shaped Rosdol, 7...Storage chamber , 8. Aggregate particle layer, 9.. Solid oxygen, lO.. Partition net, 11.. Center portion, 12.. Both end portions, 13.14.. Ventilation holes, 15.
...Vent opening adjustment plate, 16...Cooling chamber, I7...
Coolant patent Applicant Shinko Sangyo Co., Ltd. Agent Patent attorney Hiroshi Yoshimura Text No. 1, Figure 3, Figure 4

Claims (5)

[Claims] (1) Arranging or forming an aquarium in a seafood storage container,
A water-absorbent sheet is arranged in the aquarium, and both ends of the water-absorbent sheet are raised along the inner wall surface of the container, and a drop is provided at both upper ends of the water-absorbent sheet to cover the seafood, and the water-absorbent sheet covers the seafood. A fish and shellfish preservation device characterized in that cold air can be supplied from above, and cold water is circulated and supplied to the fish and shellfish by the capillary induction phenomenon through the water absorbent sheet. (2) Part or all of the upper or lower surface of the water absorbent sheet in the aquarium is made of natural aggregate particles, artificial ceramic plates, ceramic particles, etc. that contain various mineral components and have a water purification function. 2. The seafood preservation device according to claim 1, further comprising a far-infrared ray emitter, a natural aggregate or an artificial ceramic particle layer, and a perforated plate on top of the far-infrared radiator. (3) The fish and shellfish preservation device according to claim 1, wherein an oxygen solid that reacts with water to generate oxygen gas is placed in the aquarium. (4) The fish and shellfish preservation device according to claim 1, wherein the water level in the aquarium is set to a part of the preserved fish and shellfish. (5) The seafood preservation device according to claim 1, wherein the water-absorbing sheet is a sheet to which a far-infrared radiator is attached or incorporated.