JP3047025U - Underwater visibility training device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To generate fine bubbles in an underwater visibility training water area using an inexpensive fine bubble generator, and to change the underwater visibility in the training water area by the fine bubbles, to thereby improve the underwater visibility. Is to provide training. SOLUTION: A fine bubble outlet 6 of the fine bubble generator 2 is provided.
a is provided in the water bottom 1a of the underwater visibility training water area 1, and the underwater visibility of the training water area 1 is changed by the fine bubbles a blown into the water from the fine bubble outlet 6a, so that the underwater visibility training is performed. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device for training underwater transparency, and in particular, to train underwater visibility by generating fine bubbles in the underwater visibility training water area and changing the underwater visibility in the training water area by the fine bubbles. The present invention relates to an underwater see-through degree training device for performing the following.

[0002]

[Prior art]

 Conventionally, in the case of underwater visibility training, in order to bring the underwater visibility of the training area closer to the conditions of the sea, lake, etc., training by diving at night or training by adding colored powder to the water Methods are known.

[0003]

[Problems to be solved by the invention]

 However, in the training waters, in the night training to bring the underwater visibility closer to the sea conditions, training in normal work is impossible, and since it is night, there is a lack of safety. .

[0004] In addition, in the case where colored powder is added to water in a training water area in order to make the underwater visibility closer to the conditions of the sea, lake, etc., it is necessary to replace the water with colored powder after training. Replacing thousands of tons of water is difficult in terms of cost and time. Furthermore, the treatment of colored water is also expensive.

[0005] In view of the above problems, the present invention has been made in order to solve the problems. The purpose of the present invention is to use an inexpensive microbubble generator to provide an underwater visibility. An object of the present invention is to provide an underwater visibility training apparatus capable of generating underwater visibility in a training area by generating microbubbles in the training area and changing the underwater visibility in the training area by the microbubbles.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the invention of claim 1 is to provide a fine bubble outlet of a fine bubble generator at the bottom of an underwater visibility training water area, and to discharge fine bubbles blown into water from the fine bubble outlet. Means for changing the underwater visibility of the training water area to conduct underwater visibility training.

Further, the invention of claim 2 provides a fine bubble outlet of the fine bubble generator on the side of the water in the underwater visibility training area, and uses fine bubbles blown into the water from the fine bubble outlet. Means to change the underwater visibility of the training water area to conduct underwater visibility training.

Here, it is preferable that the blowing amount of the fine bubbles from the fine bubble outlet is adjustable, and the underwater visibility training water area is composed of upper and lower two-layer water, and the upper layer water has a flow velocity, The lower water may be stagnant, and the underwater visibility training area may consist of an aquarium.

[0009]

[Embodiment of the invention]

 Hereinafter, the present invention will be described more specifically based on embodiments of the present invention shown in the drawings.

[Embodiment 1] FIG. 1 is a schematic overall side view of an underwater visibility training apparatus.

In the figure, the underwater see-through training device is provided with a fine bubble outlet 6a of the fine bubble generator 2 at the water bottom 1a of the underwater see-through training area 1, and the fine bubbles blown into the water from the fine bubble outlet 6a. This device changes the underwater visibility of the training water area 1 by means of bubbles a, and uses this to perform underwater visibility training. The underwater visibility training area 1 includes the sea, lake, river, and the like. In some cases, the aquarium is used as the underwater visibility training area 1.

The microbubble generator 2 is a device that mixes a gas such as air, oxygen, carbon dioxide, nitrogen gas or the like into fresh water or seawater to generate microbubbles a. A pump 3 for sucking and pumping is provided.

A suction side chamber 4 is provided in the suction passage 5 on the upstream side of the pump 3. The inside diameter of the suction side chamber 4 is larger than the inside diameter of the suction passage 5 connected to both sides thereof. The suction side chamber 4 is a place where dirt and the like easily accumulate, but since the inside diameter is large, the inside can be easily cleaned and its maintenance is easy.

A priming inlet 4 a is provided at the upper end of the suction side chamber 4. The priming inlet 4a is used to inject fresh water or seawater into the suction side chamber 4 in advance so that fresh water or seawater can be smoothly sucked at the beginning of operation. A check valve for preventing fresh water or seawater in the suction side chamber 4 from flowing back is attached to the priming water inlet 4a.

A suction port 5 a is connected to an upstream end of the suction passage 5 on the upstream side of the suction side chamber 4. The suction port 5a is provided at the water bottom 1a of the underwater visibility training water area 1, and sucks fresh water or seawater in the underwater visibility training water area 1.

An outlet passage 6 is provided downstream of the pump 3. A fine bubble outlet 6 a is connected to the downstream end of the outlet passage 6. The microbubble outlet 6a is provided at the bottom 1a of the underwater visibility training water area 1 so as to blow out the microbubbles a into the water of the underwater visibility training water area 1.

An ejector 7 is provided in the middle of the outlet passage 6. The ejector 7 is a place where a gas such as air or oxygen is mixed into fresh water or seawater, and a check valve for preventing a reverse flow of gas is provided in the outlet passage 6 on the upstream side of the ejector 7.

A nozzle 8 for injecting gas is provided inside the ejector 7. The nozzle 8 has its injection port directed toward the downstream side of the ejector 7. In other words, the jet direction of the gas jetted from the jet port of the nozzle 8 and the flow direction of fresh water or seawater flowing in the ejector 7 are in the same direction, and the gas jetted from the nozzle 8 is smoothly mixed into the freshwater or seawater. As a result, fine bubbles a are formed.

A downstream end of a gas supply passage 9 whose upstream end is connected to a gas supply side (not shown) is connected to the nozzle 8. Gases such as air and oxygen are injected from the nozzle 8 into the ejector 7 through the gas supply passage 9 and mixed into fresh water or seawater. An adjusting valve 9a for adjusting the gas supply amount is provided in the middle of the gas supply passage 9, and a check valve for preventing a backflow of fresh water or seawater is provided.

An outlet chamber 10 is provided in the middle of the outlet passage 6 on the downstream side of the pump 3. The outlet side chamber 10 has a larger inner diameter than the inner diameter of the outlet passage 6 connected to both sides thereof. The outlet side chamber 10 is a place where dirt and the like are likely to accumulate, but since the inside diameter is large, the inside can be easily cleaned and its maintenance is easy.

At the upper end of the blow-out side chamber 10, a gas outlet 10 a is provided for letting out gas that comes out of a large bubble generated in the blow-out side chamber 10. The gas release port 10a is provided with a check valve for preventing gas from flowing back into the blow-out side chamber 10.

Next, the operation based on the configuration of the embodiment of the present invention will be described below. To operate the microbubble generator 2, first, the switch of the pump 3 is turned on, and the pump (not shown) on the gas supply side is turned on. When the switch is turned on, fresh water or seawater flows into the suction passage 5 from the suction port 5a provided in the water bottom 1a of the underwater visibility training water area 1.

In this case, priming water may be introduced into the suction side chamber 4 from the priming water inlet 4a at the beginning of the operation so that fresh water or seawater flows into the suction passage 5 smoothly. Further, a gas such as air or oxygen is fed under pressure through the gas supply passage 9 and supplied toward the nozzle 8 at the downstream end.

The fresh water or seawater sucked into the suction passage 5 passes through the suction side chamber 4 having a large inner diameter, and is pressure-fed from the pump 3 to the blow-out passage 6 through the suction passage 5. The fresh water or seawater pumped to the outlet passage 6 enters the ejector 7 and, while being pumped down the ejector 7 toward the downstream side, gas such as air and oxygen is discharged from a nozzle 8 provided in the ejector 7. The injected gas is mixed as fine bubbles a into fresh water or seawater.

The fresh water or seawater mixed with the fine bubbles a enters the blow-out side chamber 10 from the ejector 7. In the blow-out side chamber 10, air bubbles are roughly discharged from the air bubbles mixed in the fresh water or seawater, and the gas discharged from the air bubbles is discharged to the outside through a gas release port 10a at the upper end thereof.

Then, the fresh water or seawater into which the rough bubbles are discharged and mixed with the fine bubbles a passes through the blowing passage 6 from the blowing side chamber 10 and is provided at the water bottom 1 a of the underwater visibility training water area 1. The bubbles are discharged into the water in the underwater visibility training water area 1 from the bubble outlet 6a to generate fine bubbles a. The fine bubbles a spread upward, but when there is a flow in the water in the underwater visibility training water area 1, the fine bubbles a spread upward while flowing downstream.

The fine air bubbles a blown out from the fine air bubble outlet 6a in the water bottom 1a of the underwater visibility training water area 1 have a function of irregularly reflecting light in water to prevent light from going straight and lowering the underwater visibility. In this manner, the underwater visibility of the training water area 1 is changed by the fine bubbles a blown into the water from the fine air bubble outlet 6a. Training can be done.

In order to change the underwater visibility of the underwater visibility training water area 1, the amount of fine bubbles a blown out from the fine bubble outlet 6a is adjusted. The amount of the fine bubbles a blown out from the fine bubble outlet 6a is adjusted by adjusting the adjustment valve 9a of the pump 3 and the gas supply passage 9.

[Embodiment 2] Here, FIG. 2 is a schematic overall side view of an underwater visibility training apparatus. In the case shown in FIG. 2, the fine bubble outlet 6 a of the fine bubble generator 2 is provided on the underwater side of the underwater visibility training area 1. A plurality of fine bubble outlets 6a are provided at intervals in the height direction of the underwater visibility training water area 1 in water. Other configurations are the same as those of the first embodiment, and thus the same configurations are denoted by the same reference numerals and description thereof will be omitted.

When the fine bubble outlet 6a of the fine bubble generator 2 is provided on the side, the fine bubble a blows out from the side, so that the diver b dives into the underwater visibility training water area 1. Can use this to train the lateral underwater visibility.

[Embodiment 3] FIG. 3 is a schematic overall side view of an underwater visibility training apparatus. In the case shown in FIG. 3, the underwater visibility training water area 1 is composed of upper and lower two-layer water, the upper layer water 1b has a flow velocity, and the lower layer water 1c is stagnant. The fine bubble outlet 6a of the fine bubble generator 2 is provided at the bottom 1a of the stagnant lower water 1c. Other configurations are the same as those of the first embodiment, and thus the same configurations are denoted by the same reference numerals and description thereof will be omitted.

The upper layer water 1b has a flow velocity, and the lower layer water 1c creates a stagnant underwater state corresponding to sludge or the like in an actual water area when the stagnation water 1c is stagnant. Diver b can use this to train underwater visibility in a sludge condition.

It should be noted that the present invention is not limited to the above-described embodiment of the present invention, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0034]

[Effect of the invention]

 As is clear from the above description, according to the underwater visibility training apparatus according to the invention of claims 1 and 2, the underwater visibility in the training area is controlled by using the inexpensive fine bubble generator. When fine bubbles are blown into the water, the fine bubbles change the underwater visibility of the training area, so that the underwater visibility training can be performed, thereby avoiding the conventional dangerous nighttime diving training, and There is no need to adjust underwater visibility by adding color powder to the water, so there is no need to replace colored water, the cost is low, and the processing of fine bubbles has no problem in time. Furthermore, expensive water treatment equipment for treating colored water can be eliminated. In addition, even if the water used for training is polluted, dust in the water can be lifted and removed by microbubbles, so training can be performed without frequently changing the water in the training area or training tank. it can.

In the case where the blowing amount of the fine bubbles from the fine bubble outlet is adjustable, the underwater visibility can be changed by the blowing amount of the fine bubbles. You can train.

Also, when the underwater see-through visibility training water area is composed of upper and lower two-layer water, the upper water has a flow velocity, and the lower water is stagnant, the sludge in the actual water area is formed. Underwater visibility training can be conducted by creating a stagnant underwater state equivalent to the above.

Further, when the underwater see-through degree training water area is composed of an aquarium, the under-water see-through degree training can be performed more safely than in the sea, a lake, a river, or the like.

[Brief description of the drawings]

FIG. 1 is a schematic overall side view of an underwater visibility training apparatus showing Embodiment 1 of the present invention.

FIG. 2 is a schematic overall side view of an underwater visibility training apparatus showing Embodiment 2 of the present invention.

FIG. 3 is a schematic overall side view of an underwater visibility training apparatus showing Embodiment 3 of the present invention.

[Explanation of symbols]

 Reference Signs List 1 Underwater visibility training water area 1a Water bottom 1b Upper layer water 1c Lower layer water 2 Fine bubble generator 3 Pump 4 Suction side chamber 4a Priming water inlet 5 Suction passage 5a Suction opening 6 Blowing passage 6a Fine bubble blowing outlet 7 Ejector 8 Nozzle 9 Gas supply passage 9a Control valve 10 Blow-out chamber 10a Gas escape port a Fine bubble b Diver

Claims (5)

[Utility model registration claims] 1. A microbubble outlet of a microbubble generator is provided at the bottom of an underwater visibility training water area, and the underwater visibility of the training water area is changed by microbubbles blown into the water from the microbubble outlet. An underwater see-through degree training apparatus characterized by performing degree training. 2. A microbubble outlet of the microbubble generator is provided on the side of the underwater visibility training water area in the water, and the underwater visibility of the training water area is changed by microbubbles blown into the water from the microbubble outlet. An underwater see-through degree training device characterized by performing underwater see-through degree training. 3. The underwater visibility training apparatus according to claim 1, wherein the amount of fine bubbles blown out from the fine bubble outlet is adjustable. 4. The underwater see-through degree training apparatus according to claim 1, wherein the underwater see-through degree training water area is composed of upper and lower two-layer water, the upper layer water has a flow velocity, and the lower layer water is stagnant. 5. The underwater visibility training apparatus according to claim 1, wherein the underwater visibility training water area comprises a water tank.