JP2583191B2 - Water temperature maintenance device in fish breeding tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for maintaining a water temperature in a rearing tank for rearing one or both of fish and shellfish (hereinafter collectively referred to as fish and shellfish).

[0002]

2. Description of the Related Art Conventionally, there has been known an air supply device for maintaining the amount of oxygen in water by feeding air into a fish breeding tank.

[0003] However, as an apparatus for preventing a change in the temperature of water in a breeding tank and maintaining the water temperature at an appropriate temperature,
There is no suitable structure.

[0004]

Therefore, for example, in order to prevent a rise in water temperature, a heat exchanger may be provided in the breeding tank to cool the water constantly.

[0005] However, since a heat exchanger using chlorofluorocarbon as a refrigerant is no longer permitted to be used, there is a problem that an expensive heat exchanger must be used. Moreover, even if the development of an appropriate heat exchange device is realized, heat radiation from the device is inevitable, so that it may not be suitable for use conditionally.

Further, in order to achieve the two purposes of supplementing oxygen in water and maintaining the temperature of the water, the above-mentioned two devices, the air supply device and the heat exchange device, must be installed in the breeding tank. In addition, there is a problem that the size and cost of the apparatus are increased and the running cost is naturally increased.

[0007]

Means for Solving the Problems To solve the problems,
What the present invention is configured as the first means is a pumping means for pumping water in the breeding aquarium , and a pumping means for arranging the water above the breeding aquarium.
At least one guide plate inclined so that water discharged from the pumping means flows down along the surface and is returned to the breeding aquarium, and at least one guide plate is provided along the surface of the guide plate.
And a blowing means for forming an air flow .

Further, when the present invention is configured as the second means includes a scooping gel pumped means water breeding aquarium, the
A plurality of guide plates, which are located at the upper part of the breeding aquarium and which are inclined so as to allow water poured out from the pumping means to flow down along the surface, are vertically stacked at intervals. A flowing water channel forming means, and a blowing means for forming an air flow along a surface of at least one guide plate constituting the flowing water channel forming means, wherein the flowing water channel forming means is a lowermost layer. an upper guide plate except for the guide plate is configured by a water-permeable plate, wherein
While allowing water to flow down along the surface of the guide plate, the guide
A branched flow path that allows water to flow down through the plate
It consists of

Furthermore, the present inventors have constructed as a third means includes a scooping gel pumped means water breeding aquarium, the
The water that is located at the top of the breeding aquarium and flows out from the pumping means flows down along the surface and is returned to the breeding aquarium.
A water temperature holding unit comprising at least one guide plate inclined as described above and air blowing means for forming an air flow along the surface of the guide plate, wherein the water temperature holding unit is an upper opening of a breeding aquarium. In that it is removably mounted on the part.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIGS. 1 and 2A show a relatively small fish breeding tank for home use and the like.
Constitutes a transparent or translucent box having an opening at the top, similarly to the conventionally known one.

At the upper opening of the breeding aquarium 1, a water temperature holding unit 2 is detachably mounted. The water temperature holding unit 2 forms a box having an upper opening having a bottom wall 3 and a side wall 4. The upper opening is covered with a lid 5 which can be freely opened and closed.

On one side of the water temperature holding unit 2, a pumping means 6 for pumping water in the breeding aquarium 1 is provided. The pumping means 6 includes a pump 7, a suction pipe 8 protruding from the bottom wall 3, immersed in the water of the breeding aquarium 1 and sucking water by the pump 7, and an upper part of the water temperature holding unit 2 from the suction pipe 8. It is composed of an upright pipe 9 for guiding water, and a pouring pipe 10 for pouring out water passing through the upright pipe 9.

The water discharged from the discharge pipe 10 is supplied to a flowing water channel forming means 11 formed inside the water temperature holding unit 2.
, And is returned to the breeding aquarium 1 through the flow-down opening 12 of the bottom wall 3. This flowing channel configuration means 11
Is composed of a plurality of guide plates 13 which allow water discharged from the discharge pipe 10 of the pumping means 6 to flow down along the surface of the guide plates 13 at an interval above and below, and as shown in FIG. 13 is slightly inclined downward toward the flow-down opening 12. For example, as shown in FIG. 2A, a rib 14 is provided inside the side wall 4 and both side edges of each guide plate 13 are rib 1
4 and 14, the running water channel forming means 11
Can be configured.

In the illustrated example, four guide plates 13a, 13
The layers b, 13c, and 13d are stacked one above the other with an interval therebetween. In the illustrated embodiment, the lowermost guide plate 13d
The upper guide plates 13a, 13b, and 13c except for are formed of a water-permeable plate, and allow water to flow along the surface of the guide plate as shown by arrows in FIG. To form a branched channel that allows water to flow down.

In order to form a water-permeable plate by the guide plates 13a, 13b and 13c, for example, as shown in FIG. 2B, the guide plate 13 is formed by a perforated plate 16 provided with a large number of holes 15. Good. In the illustrated example, the hole 15 is
Although a circular hole is shown, it may be a polygonal hole or a slit hole. The circular hole 15 preferably has a diameter of 3 mm to 10 mm, most preferably 1 mm to 10 mm.
0 mm. The area ratio of the hole 15 to the entire surface area of one of the guide plates 13 is 7.4% to 1%.
It is preferably 4.8%, most preferably 12.6%.

When the guide plate 13 is constituted by the perforated plate 16, as shown in FIG.
It is preferable that the holes 15 in 3a, 13b, and 13c do not coincide with each other, and the arrangement is such that the phases are shifted such as in a staggered pattern.

Alternatively, in addition to being constituted by such a perforated plate 16, the whole or a part of the guide plates 13a, 13b, 13c is made of a thick nonwoven fabric, a fiber mass plate such as glass wool or steel wool, or a sponge-like sponge plate. For example, it may be constituted by a submerged and water-permeable plate body, thereby forming a flow path of water flowing along the surface of the guide plate and a branched flow path by dropping of water transmitted through the guide plate.

Further, the water temperature holding unit 2 is provided with air blowing means 17 for blowing air to the surface of at least one guide plate 13 constituting the flowing water channel forming means 11. In the illustrated embodiment, the blowing means 17 is composed of a fan disposed below the pouring pipe 10 and on the side of the flowing water channel forming means 11, and supplies air to the surfaces of the guide plates 13b, 13c and 13d. Therefore, an air flow is formed along the inclined surface of the guide plate 13, and the air flow
The air flow that has entered the breeding aquarium 1 through the water flows along the water surface, passes through an air return opening 18 formed in the bottom wall 3, and is returned to the suction side of the blowing means 17.

In addition to the illustrated example, the air blowing means 17 may be disposed on the other side of the flowing water channel forming means 11 so as to blow air against the flow of water. You may comprise so that ventilation may be given to the board 13a, 13b, 13c, 13d.

According to the configuration of the above embodiment, the pump 7 and the blowing means 17 are driven by a common driving source such as an electric motor,
The water in the breeding aquarium 1 is pumped up by the pumping means 6, poured out onto the surface of the uppermost guide plate 13 a of the flowing water channel forming means 11, and is blown to the surface of the guide plate 13 by the blower means 17. The drive source may be provided independently for each of the pump 7 and the blowing means 17.

The water discharged from the discharge pipe 10 flows down along the surface of the uppermost guide plate 13a, and returns to the breeding aquarium 1 through the flow-down opening 12. At the same time, the water falling through the uppermost guide plate 13a falls on the lower guide plate 13b.
And flows down along the surface of the guide plate 13b, and returns to the breeding aquarium 1 through the flow-down opening 12. Further, the water that falls through the guide plate 13b is received by the lower guide plate 13c and flows down. Similarly, the water that falls through the guide plate 13c is the lowermost guide plate. The water is received by the plate 13 d and flows down, and all of the water is returned to the breeding aquarium 1 through the flow-down opening 12.

Therefore, the water discharged from the discharge pipe 10 is
The time until the reflux is delayed without being instantaneously recirculated, and is further spread along the surface of the guide plate 13. During that time, the air is received from the air blowing means 17, so that the temperature is adjusted to the same as the air blowing temperature.

In particular, the apparatus of the above embodiment functions effectively for cooling water. In the specific structure shown in FIG.
According to a test apparatus using a punching metal having a fan of 160 mm in diameter as the blowing means 17 and a hole 15 of 5 mm in the guide plate 13, when the atmospheric temperature is 21.8 ° C., the water temperature is 19.2 ° C. C. This is because the water flowing down the flowing water channel forming means 11 has a maximum surface area and is blown by the blowing means 17, so that an efficient cooling effect can be obtained by the heat of vaporization of the water itself.

Furthermore, according to the above-described embodiment, since the water is refluxed as described above, vaporization and violence are promoted, oxygen is supplied, and the generation and growth of ammonia bacteria, which are aerobic bacteria, are promoted. It was confirmed to be excellent, and release of nitrogen from water was also confirmed.

[0026]

According to the first aspect of the present invention, the guide plate 1 on which the water pumped by the pumping means 6 is inclined.
3 and let it flow down while developing along the surface.
The air formed on the surface of the guide surface 13 by the wind means 17
Since it is passed through the air stream and then returned to the breeding aquarium 1, it is possible to realize two functions of supplementing oxygen to water and maintaining an appropriate temperature of water with one device. As a result, the apparatus can be provided at low cost, and the running cost is also low. By the way, for example, pumping water with a fountain nozzle
Equipment that can be cooled by a fan while fountain
In addition, as in the present invention, the dirty water in the breeding aquarium 1 is pumped up.
When recirculating, there is a problem that the fountain nozzle is clogged.
In addition, the breeding aquarium 1 is used as a breeding aquarium for appreciation.
When it is transparent or translucent, water tank 1
Is cloudy and there is a problem that you can not see the inside,
The water pumped as in the present invention flows along the inclined surface of the guide plate 13.
At the same time as air flows down on the surface of the guide plate 13.
According to the configuration for forming the flow, such a problem occurs.
Excellent without any. In addition, the fountain nose
If the fountain is dropped into the water tank,
If water droplets of water are large, they are dropped immediately, so oxygen supplementation
While water supply and water temperature maintenance cannot be performed well,
If the fountain droplets are small and mist-like,
The water supply speed is slow, and the water can be circulated quickly.
However, it is difficult to adjust this point.
On the other hand, according to the present invention, the driving force of the pumping means 6 is adjusted.
Speed of the cycle of pumping and returning the water in the breeding aquarium 1
Can be easily set, the area of the guide plate 13 and
By setting the number of sheets and the tilt angle, the desired oxygen supplement
This is advantageous in that the water supply and water temperature can be maintained properly.
You.

In particular, as regards the cooling function of water, as described above, water vaporization is promoted and cooling is performed by utilizing the heat of vaporization of water itself. Excellent in Further, regarding the oxygen replenishment function, the development of water along the guide plate 13 and the blowing means 17
Due to the air blown from the breeding tank and the drop toward the breeding aquarium 1, the oxygen supply effect is extremely excellent, but the nitrogen release effect is also excellent, and a water purification effect can be expected due to the action of growing bacteria by violence.

According to the second aspect of the present invention, the inclination
A plurality of the arranged guide plates 13 are vertically stacked at intervals.
The flow channel forming means 11 is constituted by layer arrangement.
Therefore, the flowing water is blown by the blowing means 17 for a long time.
Exposed to the air flow, and
Along the surface of the guide plate 13 by the guide plates 13a to 13c.
And let the water flow down while passing through the guide plate 13
Since it has a branched flow path that allows water to flow down,
The falling water is widely dispersed in the branch path, and as a result , there is an effect that the effect can be further improved.

According to the third aspect of the present invention, the present invention can be easily implemented simply by mounting the water temperature maintaining unit 2 on the upper opening of the breeding aquarium 1, so that it is relatively small for home use or the like. There is an effect that it is suitable for fish breeding tanks.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing one embodiment of the present invention.

FIG. 2A is a central longitudinal sectional view of FIG. 1, and FIG. 2B is an enlarged perspective view showing an example of a guide plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Breeding aquarium 2 Water temperature holding unit 6 Pumping means 7 Pump 8 Suction pipe 10 Outflow pipe 11 Flow channel formation means 12 Downflow opening 13 Guide plate 15 Hole 16 Perforated plate 17 Blowing means 18 Air recirculation opening

Claims (3)

(57) [Claims] 1. Pumping means 6 for pumping water from a breeding aquarium 1.
When, at least one guide plate 13 which is arranged obliquely so as allowed to reflux water dispensed from said pumping means 6 located on the top of the breeding water tank 1 to the rearing water tank 1 allowed flows down along the surface, An air flow along the surface of the guide plate 13
And a blowing means (17) for forming a water temperature. 2. Pumping means 6 for pumping water from the breeding aquarium 1.
And an inclined arrangement which is located at the upper part of the breeding aquarium 1 so that water discharged from the pumping means 6 flows down along the surface.
A flowing water channel forming means 11 in which a plurality of guide plates 13 placed are stacked one above the other at intervals, and an air flow along the surface of at least one guide plate 13 forming the flowing water channel forming means 11 The flow channel forming means 11 comprises upper guide plates 13a to 13c, except for the lowermost guide plate 13d, made of a water-permeable plate, and water flows along the surface of the guide plate 13. Let me flow down
Branch through the guide plate 13 to allow water to flow down
A water temperature maintaining device in a fish and shellfish breeding tank, wherein the device has a flow passage formed therein . 3. Pumping means 6 for pumping water from the breeding aquarium 1.
When, at least one guide plate 13 which is arranged obliquely so as allowed to reflux water dispensed from said pumping means 6 located on the top of the breeding water tank 1 to the rearing water tank 1 allowed flows down along the surface, An air flow along the surface of the guide plate 13
Temperature maintaining unit 2 comprising blowing means 17 for forming
Configure, characterized in that formed by detachably mounting the water temperature holding unit 2 to the upper opening of the rearing water tank 1 according
Item 3. The water temperature maintaining device in the fish and shellfish breeding tank according to Item 1 or 2 .