JPH1157784A - Water flow machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve maintainability in a water flow machine for reducing water pollution constituted of a propeller, a submergible motor, and a floating float by hanging an equipment body consisting of the propeller and the submergible motor from the float part on the water and enabling removing the equipment body from the float part. SOLUTION: To an equipment body consisting of a propeller 1 and a submergible motor 2, a lifting lug 10 is fitted so that they can be lifted by a lifting device 20 arranged on a lifting device beam 13 fitted on a float 4. To the submergible motor 2, a blade-shaped structure 11a is laterally fitted, and it is given the shape of its combination with a guide 11a, thereby enabling restriction of horizontal movement. Furthermore, for the vertical direction, a leg 12 is fitted to the equipment body to fix it. In this way, one standby equipment body consisting of a propeller 1 and a submergible motor 2 which has been subjected to inspection and repair in advance is provided and replacement is performed on the water, thereby limiting the standing time of a water flow machine associated with inspection and repair to the minimum.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water jet for improving water pollution of lakes and marshes.

[0002]

2. Description of the Related Art In recent years, water pollution in lakes and marshes has progressed, and purification thereof has been demanded. In lakes, etc., when the water temperature changes in the spring and autumn, a temperature jump layer is formed and the water at the bottom of the lake is not replaced. Has increased, leading to an increase in phytoplankton.

[0003] Therefore, by installing a water flow machine and forcibly circulating the water, water containing a large amount of dissolved oxygen near the water surface is spread to the lake bottom, and elution of nutrients is prevented. Water jets are often installed in deep water away from the shore,
In such a case, it is often the case that a float is attached and floated, and the anchor and the wire rope are used for fixing.

Incidentally, as this kind, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. 4-354598.

[0005]

In a conventional water jet machine, a device body composed of a propeller and an underwater motor and a float for providing buoyancy cannot be easily divided. For inspection and repair work, it is necessary to release the mooring, tow the equipment together with the flow to the land, and lift it up on land. Was troublesome.

[0006] It is an object of the present invention to provide a water jet machine which can omit the work associated with such inspection and repair.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a water jet machine comprising a propeller, a submersible electric motor and a float for floating, wherein an equipment body composed of a propeller and an underwater electric motor is suspended above the water on a float, and the equipment body is suspended. This is attained by adopting a configuration that can be removed from the float portion.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of a water jet machine, and FIG. 2 is an enlarged view of the embodiment shown in FIG. 1 omitting a float and a hanger beam.

A hoist 10 is attached to an equipment body composed of the propeller 1 and the underwater motor 2, and can be lifted by a hoisting device 20 attached to a hoisting device beam 13 attached on the float 4. . In addition, the underwater motor 2 is provided with a laterally-splashed structure 11a and combined with the guide 11b to restrain horizontal movement. In the vertical direction, the leg 12 is attached to the equipment body, or the lower part of the guide 11b is supported by making it thicker as shown in FIG.

FIG. 4 is an explanatory view when the water jet machine is detached. The equipment body which is lifted by the lifting device 20 and comprises the propeller 1 and the underwater motor 2 has two floats 4a, 4b.
The boat is put in between, and is lifted by the lifting device 20 attached to the gantry on the float, and collected by lowering it on the boat. At this time, if the legs 12 are attached so that the equipment body can stand on its own, it can stand on its own when it is put down on the ship, so that handling becomes easy.

The power cable 3 is attached and detached by providing a connector 6 on water, for example, on a float. In addition,
If a spare device consisting of the propeller 1 and the underwater motor 2 is provided and inspected and repaired in advance and replaced on the water, the downtime of the water jet accompanying the inspection and repair can be minimized. You can do it once.

FIG. 5 shows still another embodiment. The difference from the embodiment shown in FIG. 1 resides in that a lifting device 20 for lifting a device composed of a propeller 1 and an electric motor 2 and a beam 13 for the lifting device are attached to the work boat 7. As a result, as compared with the embodiment shown in FIG. 1, the working barge becomes larger and the structure becomes more complicated. However, since the lifting device 20 does not need to be attached to the water jet machine, there is an advantage that the size of the float can be prevented from increasing. Yes, it is advantageous when installing multiple water jets in one water area.

[0014]

According to the present invention, the maintainability can be improved by providing a structure in which the equipment composed of the propeller and the underwater motor can be separated from the float on the water.

[Brief description of the drawings]

FIG. 1 is an external view of an embodiment of a water jet according to the present invention.

FIG. 2 is a partially enlarged view of the embodiment of FIG. 1;

FIG. 3 is an external view of a water jet according to another embodiment of the present invention.

FIG. 4 is an explanatory diagram when a water jet is removed.

FIG. 5 is an external view of another embodiment of the water jet according to the present invention.

[Explanation of symbols]

1 ... propeller, 2 ... underwater motor, 3 ... power cable, 4
... Float, 5 ... Mooring rope, 6 ... Connector, 7 ... Work boat, 10 ... Hanging tool, 11 ... Guide, 12 ... Equipment leg, 13 ... Hooking device beam, 20 ... Hooking device.

Claims (1)

[Claims] An apparatus comprising a propeller, a submersible motor and a float for floating, wherein a device comprising a propeller and a submersible motor is suspended above a float on water and the device is detachable from the float. A water jet machine characterized in that: