JPH0631894Y2 - Storage device for seafood - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a storage device for seafood, which stores seafood alive and fresh.

(Background Art) In recent years, in order to provide fresh seafood, methods such as transporting the seafood alive and keeping it in an aquarium have been adopted. In this way, when transporting seafood alive or keeping it in an aquarium, it is important not to compromise the freshness of the fish, and if the fish is weakened during transportation, the taste will be reduced and the product value will be reduced. The problem is that it will lead to a decline in the price.

In transporting live fish, it is desirable to put as many fish as possible into the transport container in order to improve transport efficiency, but because the fish weakens, there is a limit to the number of fish that can be stored. It is transported while supplying oxygen using an oxygen cylinder.

By the way, the present inventor has developed a live fish transport device as a device capable of solving the problems in these live fish transport devices (Japanese Patent Application No. 63-126498). FIG. 4 shows a schematic configuration of this live fish transporting device.

This live fish transporter pays attention to the fact that carbon dioxide has an extremely large effect on the environmental conditions in which fish are stored, and by removing the carbon dioxide emitted when the fish breathe, it can be transported without weakening the fish. It was done like this. In FIG. 4, reference numeral 1 is a closed container for containing fish and water, which is filled with oxygen and then sealed. Reference numeral 2 is an adsorption tank for adsorbing and removing carbon dioxide. In this example, the adsorption tank 2
Is installed outside the closed container 1, the gas is sucked into the adsorption tank from the gas phase of the closed container, the carbon dioxide component in the gas is removed in the adsorption tank 2, and then the gas is introduced into the water of the closed container 1. It is configured to circulate back. The returning gas is released in water because oxygen in the gas is mixed into the water and carbon dioxide discharged into the water is released into the gas phase by bubbling.

It was confirmed that the live fish transporting device configured as described above has an extremely large effect by removing carbon dioxide in water. In other words, by removing the carbon dioxide emitted from the fish, the fish can be kept alive for an extremely long time, and even if the same size container holds 2-3 times as much fish as the conventional one. The fish could survive without weakening.

This suggests that the fact that the fish were weak when transporting fish or the like and that the capacity of the fish was limited in the past was greatly influenced by carbon dioxide emitted when the fish breathed. If the amount of carbon dioxide in the water exceeds a certain allowable amount, the fish will weaken and die even if there is sufficient oxygen in the water.

If it is an open type water tank, it is possible to emit carbon dioxide in water by sending oxygen gas into the water, but when using a sealed container such as the above, the carbon dioxide is sent to the outside. It is impossible to release it, and if the fish are stored for a long time or too many fish, the harmful effect of the carbon dioxide accumulated in the container becomes remarkable.

In order to reduce the damage of this carbon dioxide, it is sufficient to make the space that receives the carbon dioxide emitted from the water large, but if the space is made large in this way, it will be compared to the amount of fish and water contained. Larger containers will be used and transportation costs will be high and inefficient.

The present invention has been made to solve the above-mentioned problems in the device using the closed container. The purpose of the present invention is to store more fish and shellfish in the closed container, and An object of the present invention is to provide a storage device for seafood that can be stored fresh and kept fresh.

(Means for Solving the Problems) The present invention has the following configuration in order to achieve the above object.

That is, in addition to forming an internal space for storing seafood and water, it is hermetically sealed by being filled with oxygen gas, and in a closed container formed as a closed space that shuts off the supply of water and oxygen gas from the outside. The provision of an adsorbing unit for adsorbing carbon dioxide in the gas phase when the seafood and water are stored and a bubbling device for bubbling the water stored in the closed container are provided. Characterize. Further, transporting the water contained in the closed container from the liquid phase to the gas phase,
It is characterized in that a water circulation mechanism is provided to circulate between the liquid phase and the gas phase by discharging from a discharge port that opens in the gas phase.

(Operation) By bubbling the water in the closed container with a bubbling device or by releasing the water in the gas phase, the gas in the water is degassed and carbon dioxide is released into the gas phase.
The carbon dioxide in the gas phase is adsorbed and removed by the adsorption unit arranged in the gas phase, and the carbon dioxide discharged into the water by the fish and fish breathing is removed. As a result, the living environment in the closed container is favorably maintained, and the seafood can be stored without weakening it.

(Embodiment) A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is an explanatory view showing an embodiment of a live fish accommodation device according to the present invention.

In the figure, 10 is an airtight container for storing fish and water, and an opening portion for letting in and taking out fish and water is provided in the upper portion, and a lid 12 is detachably provided in the opening portion.

An adsorption part 14 that adsorbs and removes carbon dioxide in the gas is provided on the inner wall surface of the top of the lid 12. The adsorbing section 14 is kept breathable with the gas phase of the closed container 10, and an adsorbent such as soda lime that adsorbs carbon dioxide is stored in the adsorbing section 14, and the adsorbent is formed so that it can be replaced appropriately. To be done.

Reference numeral 16 is a bubbling device for bubbling water in the closed container 10. The bubbling device 16 includes a water turbine 18, a drive unit that rotationally drives the water turbine, and a float 20. The float 20 floats the water turbine 18 on the surface of the water, and the drive unit is connected to an external power source by a conductor 22.

The live fish storage device of the above-described embodiment is a closed container 1 for water and fish.
It is put so as to be about half the amount of 0, water and fish are put therein, then oxygen is filled, and the lid 12 seals. The bubbling device 16 bubbles water on the water surface and degasses the water by the water wheel 18 being driven to rotate by the drive unit. The gas degassed from the water diffuses into the gas phase, and the carbon dioxide component discharged into the gas phase is adsorbed and removed by the adsorption unit 14. The bubbling device 16 has a function of circulating a gas in the gas phase,
The gas circulation facilitates the adsorption of carbon dioxide in the vapor phase to the adsorption unit 14.

Since carbon dioxide is discharged in water, in order to remove carbon dioxide in the water, deaeration with a bubbling device,
It is necessary to discharge and adsorb carbon dioxide in the gas phase. Then, by bubbling water in this way to degas the gas phase, and by removing carbon dioxide, it is possible to maintain a suitable living environment of the fish in a closed container,
Even in a closed container, it is possible to store fish that will weaken the fish for a long time.

FIG. 2 is an explanatory view showing another embodiment of the live fish storage device. In this example, the bubbling device 16 is characterized in that the carbon dioxide adsorbing portion 14 is stored in the capsule. 20 in the figure
Is a float for floating the bubbling device 16 on the water, as in the above embodiment, and 18 is a water wheel. Water wheel 1
The bubbling device 8 is installed on the lower surface of the bubbling device 16 as shown in FIG.
Installed on the side of No. 6 and bubbling above the water surface. An underwater turbine works to agitate and circulate water, and those that bubble sideways are mainly for deaeration and gas circulation in the gas phase.

In addition, a fan 24 is provided in the capsule for sucking gas in the gas phase and passing the gas through the adsorption unit 14 and discharging the gas into the gas phase. The fan 24 and the water turbine 18 are connected to a drive unit, and the drive unit is connected to an external power supply via a conductor 22.

In the device of this embodiment, the bubbling device 16 is used to bubble water to degas the gas in the water, and the gas in the gas phase is allowed to flow through the adsorption section 14 in the bubbling device to adsorb carbon dioxide in the gas. To remove. Instead of connecting the drive part of the bubbling device 16 to an external power source, a battery may be built in the bubbling device 16 to perform deaeration and removal of carbon dioxide in the gas phase by bubbling.

FIG. 3 is an explanatory view showing still another embodiment of the live fish accommodation device. In the figure, 26 is a water flow pump,
Is installed outside, and one end is connected to a side wall near the bottom of the closed container 10, and the other end is connected to an upper wall surface of the closed container 10. The water flow pump 26 circulates the water in the closed container 10 so that the water is sucked from one end side and discharged / dropped from the upper gas phase portion of the closed container 10, and is connected to an external power source and driven. A nozzle 28 for radially discharging water is attached to the water discharge end of the water flow pump 26. Reference numeral 14 is a carbon dioxide adsorbing unit installed in the gas phase.

The accommodating device of this embodiment is similar to the above embodiment in that the closed container 10
About half the amount of water and fish are put therein, and after filling with oxygen gas, the container is closed by the lid 12. By operating the water flow pump 26, the water in the container circulates, and the circulated water is radially discharged from the nozzle 28 in the gas phase.
When it is radially discharged from the nozzle 28, oxygen in the gas phase is mixed so as to be mixed with water, and at the same time, the gas mixed in the water is degassed and diffused into the gas phase. The carbon dioxide emitted in the gas phase is adsorbed and removed by the adsorbing section 14, whereby the carbon dioxide discharged from the fish into the water is removed.

In the water circulation system of this embodiment, the bubbling device 16 described above may be used in combination. In this case, the carbon dioxide in the water is more easily degassed by bubbling, and the gas circulation in the gas phase is improved. As a result, the adsorption / removal action of carbon dioxide in the vapor phase by the adsorption unit 14 is more effectively performed.

The water flow pump 26 may be of a type installed inside the closed container 10 as a matter of course.
Further, as the power source, a battery or the like may be used instead of the external power source.

In each of the above-described embodiments, carbon dioxide discharged from fish into water is diffused into the gas phase, and is adsorbed and removed by the carbon dioxide adsorbent in the gas phase. Thus, the removal of carbon dioxide from the water allows the fish to stay healthy for quite some time.

According to the experiment, when 10 liters of water and 5 to 30 chars were placed in a 20 liter capacity vinyl hermetic container, the conventional equipment that was only filled with oxygen gas required 5 hours to survive for 30 hours. In contrast to the limit of ~ 10 fish, the device of this example was able to accommodate and survive up to 20-30 fish with a margin.

Moreover, in the conventional device only filled with oxygen gas, the fish housed under the influence of carbon dioxide became anesthetized and weakened over time, but in the device using the live fish housing device of this example It was active even after a lapse of time as at the start of the test.

Incidentally, when the pH value of water was measured, in the example using the live fish storage device of the present example, the pH value of the water in the container at the end of the test hardly decreased compared to natural water, and carbon dioxide was It was confirmed that it was collected by the adsorption unit.

Experiments have also confirmed that the freshness of the fish meat suddenly drops when the fish is alive but weakened. That is, in order to maintain the freshness and taste of fish meat and maintain its commercial value, it is necessary to allow the fish to survive in a healthy state. In this respect, the live fish accommodation device of this embodiment does not weaken the fish. It can be put to good use and is extremely effective.

Although soda lime was used as the carbon dioxide adsorbent, other various adsorbents that are effective in adsorbing carbon dioxide can also be used.

Further, the above-mentioned storage device can be used not only for storing fish but also for storing seafood such as shrimp, and can exert a great effect in keeping the seafood fresh. In addition, even when keeping seafood in an aquarium, by using the method of the above device such as bubbling water to remove carbon dioxide in the water, it is possible to make the seafood survive without losing its freshness. It is possible.

Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to the embodiments.
It goes without saying that many modifications can be made without departing from the spirit of the invention.

(Effects of the Invention) As described above, the fish and shellfish storage device according to the present invention can effectively store and store fish and shellfish, regardless of the complicated device configuration, and is compact and easy to handle. Can be provided as a simple device. The bubbling device effectively emits carbon dioxide in the water into the gas phase to effectively reduce the residual amount of carbon dioxide in the water, and it is possible to further improve the environment in the closed container by attaching a water circulation mechanism. It is possible to store a lot of seafood in the container. This brings about a remarkable effect such that it can be suitably used as a transportation device for seafood.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a storage device for seafood according to the present invention, FIG. 2 is an explanatory view showing another embodiment, and FIG. 3 is an explanatory view showing yet another embodiment. FIG. 4 is an explanatory view showing a conventional device. 10 ... airtight container, 14 ... adsorption part, 16 ... bubbling device, 18 ... water wheel, 20 ... float, 22 ... conductor, 24 ... fan, 26 ... water pump.

Claims (2)

[Scope of utility model registration request] 1. An airtight seal, which forms an internal space for storing seafood and water, and is hermetically sealed by being filled with oxygen gas, and which is formed as a closed space that shuts off the supply of water and oxygen gas from the outside. The container is provided with an adsorption unit for adsorbing carbon dioxide in the gas phase when the seafood and water are contained, and a bubbling device for bubbling the water contained in the closed container. A storage device for seafood characterized by the above. 2. A water circulation mechanism for transporting water contained in a closed container from a liquid phase to a gas phase, discharging the water from a discharge port opened in the gas phase, and circulating the water between the liquid phase and the gas phase. The seafood storage device according to claim 1.