JPH04349835A - Device for transporting alive fish or the like - Google Patents

Abstract

PURPOSE:To always maintain sea water in a water tank for transporting alive fishes in a sufficiently oxygen-absorbed state and further optimize the temperature of the sea water for the growth of the alive fishes. CONSTITUTION:A circuit for circulating sea water in water tanks 7a, 7b is separated into a cooling water passage A and an oxygen-supplying water passage B, and the cooling water passage A is further branched into a bypass passage P quipped with a water suction control valve V, thereby permitting an oxygen-supplying sea water feed rate optimum for the nitrification of ammonia for a biological filter medium 5.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transporting live fish, etc., which is mounted on a truck or freight car and transports live fish while circulating inside an aquarium.

0002

2. Description of the Related Art Techniques relating to devices for transporting live fish, etc. have been well known. For example, JP-A-61-57
This technique is similar to the techniques described in Japanese Patent Publication No. 38 and Japanese Patent Application Laid-Open No. 2-234619.

0003

[Problems to be Solved by the Invention] In the conventional technology, there was a problem that live fish weakened due to insufficient oxygen supply, so the present invention is configured to ensure a stable supply of oxygen, In addition, the physical filter that was conventionally placed inside the aeration layer is removed from the aeration layer and separated.
The aeration layer is made smaller by arranging it separately. In addition, by providing a water absorption control valve V to adjust the amount of circulating water to the biological filter medium, water absorption is adjusted optimally depending on the condition of the biological filter medium, and the amount of nitrification is maximized.

0004

[Means for Solving the Problems] The problems to be solved by the present invention are as described above, and next, the means for solving the problems will be explained. That is, in a configuration in which an aeration layer is provided separately from the aquarium, a biological filter medium is detachably installed in the aeration layer, and the water circulation path between the aeration layer and the biological filter medium is connected to an oxygen supply channel B and a cooling channel A.
At the same time, a physical filter 15 is installed in the cooling water channel A.
and a cooler 14. Further, a bypass path P is branched from the cooling water channel A to directly absorb water into the biological filter medium 5, and a water absorption control valve V is provided which makes it possible to adjust the amount of water absorbed into the biological filter medium 5.

[0005]

[Operation] Next, the operation will be explained. The present invention rotates a generator D by an engine E provided in a part of a mechanical unit U, supplies electric power, and drives a cooler 14 with the electric power,
Air is sent by blowers 19 and 19, and water circulation pump 1
8 and 18, the oxygen generator 2 supplies oxygen, and the water whose temperature has increased is cooled by the cooler 14. Furthermore, the biological filter medium 5 placed inside the aeration layer 8 nitrifies and processes ammonia excreted by the live fish, and the same seawater is circulated, thereby making it possible to transport the live fish.

[0006]

[Example] Next, an example of the present invention will be described. FIG. 1 is a front view of the apparatus for transporting live fish, etc. of the present invention, FIG. 2 is a plan view, FIG. 3 is a side view, FIG. 4 is a front perspective view of the engine compartment in the mechanical unit U, and FIG. 5 is an engine 6 is a rear view, FIG. 7 is a plan view, FIG. 8 is a rear view of the water circulation chamber in the mechanical unit U, and FIG. 9 is a front view of the chamber.
10 is a water circulation system diagram, FIG. 11 is a water circulation piping diagram on the bottom of water tanks 7a and 7b, and FIG. 12 is a gas-liquid mixing ejector K. It is an enlarged view of.

The overall configuration will be explained with reference to FIGS. 1, 2, and 3. The entire apparatus for transporting live fish, etc. of the present invention is placed on a main frame 42.
Forklift insertion holes 41 are opened in the portion 2. By inserting the tips of the forks into the forklift insertion holes 41, the whole can be lifted up. In addition, the main frame 42 is entirely mounted on a truck or freight car to travel and transport live fish. Water tanks 7a and 7b are arranged on the left and right sides of the front, and ladders 47 and 47 are arranged on the front sides of the water tanks 7a and 7b. Further, a mechanical unit U consisting of a water circulation chamber, an aeration layer 8, and an engine room is arranged between the water tanks 7a and 7b. An engine room is arranged on the front side of the mechanical unit U, and includes a control panel inspection cover 35, an engine inspection cover 36, an operation panel 37, a fuel supply port cover 43, and water tank inspection windows 3a and 3b. ing. Also aquarium 7
An intake duct 4 is arranged at the front of the part a in a shape extending from the engine compartment, and intake ports 38, 39, and 40 are opened in the intake duct 4. Further, a scum tank 44 is arranged in a portion of the main frame 42.

As shown in FIGS. 2 and 3, the water tanks 7a and
Aquarium lids 6, 6 are arranged on the upper surface of 7b, and an aquarium illumination 45 is provided at the center of the aquarium lids 6, 6. An exhaust duct 11 is installed upright in the engine room 13 that constitutes the mechanical unit U, and a cooler 14, a physical filter 15, and an emergency oxygen cylinder 16 are installed inside the water circulation chamber 9.
・16 are arranged. The emergency oxygen cylinder 16.1
6 supplies oxygen to prolong the life of live fish when the engine E is stopped and water circulation is no longer performed. Next, the inside of the engine compartment 13 will be explained with reference to FIGS. 4, 5, 6, and 7. An engine E and a generator D are arranged on an engine stand F, and a radiator 31, a cooling water supply tank 32, etc. of the engine E are arranged. Previously, the engine was placed in the upper part of the engine compartment, making it possible to lift it up and remove it for inspection and repair. However, when the engine was placed above the engine compartment, the exhaust silencer had to be placed outside the engine compartment, which resulted in poor heat balance and a problem with the durability of the exhaust silencer. . In the present invention, the engine E is placed below the engine compartment 13 so that the engine E can be inspected and repaired while being loaded on the bed of a truck, and there is no need to take it out from the engine compartment 13 in this state. For this purpose, a space H is constructed above the engine E inside the engine compartment 13, in which the engine E can be lifted upward and suspended.

Furthermore, if you hang the engine E on the front side with the fan of the radiator 31 as it is and hang the wire on the lifting fitting 48 and pull it out to the front, the radiator fan will interfere with the shroud, so the engine stand F and A pull-out bolt 29 is inserted between the main frame 42 and the main frame 42.
, and remove the engine stand F with the extraction bolt 29.
Move the radiator fan and shroud by the overlap width,
After that, by lifting the engine E upward, the engine E can be taken out from the engine compartment 13. An exhaust duct 11 projects upward from the engine room 13, an exhaust muffler 25 is provided inside the exhaust duct 11, and an upper cover 46 is provided above the exhaust duct 11. The exhaust muffler 25 in the exhaust duct 11 and the exhaust manifold of the engine E are connected by an exhaust pipe 33. An engine operation panel 24, an hour meter 22, and a fuel meter 23 are provided below the exhaust muffler 25. Furthermore, an automatic control panel C for the live fish transportation device is provided in the upper part of the engine room 13, and a generator control panel 26 for controlling the generator D, a fuel filler port 27 for supplying fuel to the fuel tank 21, and a charger 28 are installed. It is located. 30 is a receiver, 1
2 is an air cleaner.

The internal arrangement of the water circulation chamber 9 will be explained with reference to FIGS. 8 and 9. The interior of the water circulation chamber 9 is structured into three stages, with a cooler 14 and a physical filter 15 arranged in the upper stage, and an oxygen generator 2 and blowers 19, 19 in the middle stage.
are arranged, and batteries 17, 17 and water circulation pumps 18, 18 are arranged in the lower stage. Further, the emergency oxygen cylinders 16, 16 are arranged at the lower stage, but because of their height, they protrude to the upper stage. The emergency oxygen cylinder 16.
A physical filter 15 is provided at a position lined up with 16. In FIG. 9, a front view of the mechanical unit U is shown, and since there is a possibility that the exhaust air from the exhaust duct 11 of the engine compartment 13 will be sucked into the fan of the cooler 14,
In the present invention, the upper cover 46 of the exhaust duct 11 is opened upward so that the exhaust air is blown upward and is not drawn into the fan of the cooler 14. An aeration layer 8 is disposed between the engine room 13 and the water circulation chamber 9, a biological filter medium 5 is disposed inside the aeration layer 8, and filtration filters 10, 10 made of mesh or the like are disposed. It is located.

Next, the explanation will be given with reference to FIG. The two blowers 19, 19 supply air to the lower parts of the water tanks 7a, 7b, and the seawater inside the water tanks 7a, 7b absorbs oxygen. Further, pure oxygen from the emergency oxygen cylinders 16, 16 is supplied to the lower part of the water tanks 7a, 7b in an emergency, so that the live fish will not die even if the engine E stops. The water overflowing from the water tanks 7a, 7b is supplied to the aeration layer 8 through filters 10, 10, and is pumped from the bottom of the aeration layer 8 via water circulation pumps 18a, 18b. The circuit supplied by the water circulation pump 18a is an oxygen supply waterway B, in which oxygen or air from the oxygen generator 2 is mixed with seawater by a gas-liquid mixing ejector K.
It is returned to the water tanks 7a and 7b. In addition, water circulation pump 18b
The circuit for pressure-feeding seawater is a cooling waterway A, which passes seawater through a physical filter 15 under pressure to forcibly separate dust and excrement. Further, after passing through the physical filter 15, the seawater is cooled by a cooler 14 and
・Reverted to 7b.

In this configuration, after passing through the physical filter 15 and before being supplied to the cooler 14, water is branched and supplied to the biological filter medium 5 while being regulated by a water absorption control valve V. Air is supplied to the inside of the aeration layer 8 by another blower 19, so that the bubbles are aerated as they rise. Furthermore, bacteria that perform nitrification are cultured inside the biological filter medium 5, and decompose ammonia excreted by live fish. The water flow is adjusted by a water absorption control valve V and supplied to the biological filter medium 5 in an amount that optimizes the nitrification effect. In addition, scum foam pipes 49 are installed above the water tanks 7a and 7b.
is projected, and the foam coming out from the scum foam pipe 49 is stored in the scum tank 44. Figure 1
No. 1 discloses the configuration of circulating water pipes provided at the bottoms of water tanks 7a and 7b. A circulating water pipe that absorbs oxygen from the oxygen supply channel B and a temperature-controlled circulating water pipe from the cooling channel A are configured to flow back to the bottoms of the water tanks 7a and 7b, and also from the blowers 19 and 19. An air supply pipe is also provided.

In FIG. 12, a configuration of a gas-liquid mixing ejector K for mixing oxygen or air from the oxygen generator 2 and circulating water in an oxygen supply waterway B is disclosed. In the gas-liquid mixing ejector K, the inner diameter of the pipe on the air side is d0, the inner diameter of the pipe on the circulating water side is d, the outer diameter of the pipe after mixing is D, and the tip of the pipe on the circulating water side is connected to the pipe on the air side. If the protruding distance from the center of is l, then d
By setting o/d=0.24 to 0.4 and l=k・do, it is possible to reduce the pressure loss, reduce the pump capacity, increase the amount of oxygen supplied, and make the equipment compact. It was completed.

[0014]

[Effects of the Invention] Since the present invention is constructed as described above, it has the following effects. With the configuration as claimed in claim 1, the oxygen supply waterway B is not equipped with the cooler 14 or the physical filter 15, so there is less water supply resistance when circulating water is pumped. Since it can be sufficiently mixed with the circulating water, a stable supply of oxygen can be ensured. In addition, since the water supply resistance is small, reducing the pump capacity allows the entire device to be configured compactly. Furthermore, since the cooler 14 is disposed in the cooling waterway A, it is possible to lower the temperature of the circulating water whose temperature has increased. Furthermore, the physical filter, which was conventionally placed inside the aeration layer, is taken out from the aeration layer, separated, and placed separately, thereby making the aeration layer smaller. Also, claim 2
With this configuration, by branching the amount of circulating water to the biological filter medium from the position in front of the cooler 14, the circulating water that has been forcibly filtered by the physical filter 15 can be supplied to the biological filter medium 5. By providing a water absorption control valve V to adjust the amount of water, the water absorption is adjusted to be optimal for the condition of the biological filter medium, and the amount of nitrification is maximized.

[Brief explanation of drawings]

FIG. 1 is a front view of an apparatus for transporting live fish, etc. of the present invention.

FIG. 2 is a plan view as well.

FIG. 3 is a side view as well.

FIG. 4 is a front perspective view of an engine compartment portion in the mechanical unit U.

FIG. 5 is a front view of the engine compartment portion.

FIG. 6 is a rear view as well.

FIG. 7 is a plan view as well.

FIG. 8 is a rear view of the water circulation chamber portion in the mechanical unit U.

FIG. 9 is a front view of the engine room, aeration layer 8, and water circulation chamber that constitute the mechanical unit U.

FIG. 10 is a water circulation system diagram.

FIG. 11 is a diagram of water circulation piping on the bottom surfaces of water tanks 7a and 7b.

FIG. 12 is an enlarged view of the gas-liquid mixing ejector K.

[Explanation of symbols]

A Cooling water channel B Oxygen supply waterway C Automatic control panel D Generator E engine F Engine stand K Gas-liquid mixing ejector 2 Oxygen generator 3 Inspection window for aquarium 4 Intake duct 5 Biological filter media 6 Aquarium lid 7 Aquarium 8 Aeration layer 9 Water circulation room 13 Engine room

Claims (2)

[Claims] Claim 1: In a configuration in which an aeration layer is provided separately from the aquarium, a biological filter medium is removably installed in the aeration layer, and a water circulation path between the aeration layer and the biological filter medium is connected to an oxygen supply channel B and a cooling system. A device for transporting live fish, etc., characterized in that the cooling waterway A is separated into a waterway A, and a physical filter and a cooler are arranged in the cooling waterway A. 2. Claim 1, characterized in that a bypass path P is branched from the cooling waterway A, and a water absorption control valve V is provided which allows water to be directly absorbed into the biological filter medium and to adjust the amount of water absorbed into the biological filter medium. Equipment for transporting live fish, etc.