JPS5835758B2 - Underwater waterfall device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that is submerged in a steam tank to produce air steam.
In particular, it is a compact machine that uses centrifugal force to create negative pressure by rotating an impeller that is shaped to easily create an upward flow, introduces air, and disturbs the steam flow caused by this using a magic plate that also serves as a table to improve efficiency. This invention relates to a submersible steam device that has great effects and produces steam underwater.

Conventionally, steam devices used to supply oxygen to water, such as oxidation of iron, etc., and to remove bad odors, etc., have become indispensable for purifying water or for recycling and using water as the unit price of water increases. Most of the devices are uneconomical, requiring large construction costs, space, and operating costs, such as spraying a fountain on a box-shaped wall on the roof of a building and applying an air stream to the fountain, or using compressed air underwater. Many of them require attached equipment such as finer feed, and the venturi type has disadvantages such as high pressure loss and low energy efficiency. There was a deep desire for the emergence of an efficient submerged steam generator.

Therefore, the object of the present invention is to suck air by submerging it in the water of a steam tank, which has never been seen before, and creating a negative pressure by rotating the impeller, and by having the impeller have a shape that easily causes an air lift effect due to centrifugal force, and by rotating the impeller. To provide a submersible steam device which is compact and highly effective by improving efficiency by using a baffle plate provided to cut off the generated steam flow.

Other objects and features of the present invention will become apparent from the following description and accompanying drawings.

Embodiments of the apparatus of the present invention will be described below with reference to the drawings.

Fig. 1 is an explanatory cross-sectional elevational view of this device, Fig. 2 is an explanatory plan view similarly seen from below, Fig. 3a, Fig. 3b, Fig. 5a, 5b.
Figures 6a and 6b are an explanatory plan view and an explanatory cross-sectional elevational view of each embodiment of the impeller, and Fig. 4 is an explanatory view of the stand and baffle plate.

In FIGS. 1 and 2, the main body 1 is attached to the water in the aeration tank by means of hanging fittings 15 and spoiler baffles 12.

The main body 1 has a built-in vertical motor 4 that is rotated by an electric conductor 3 that drives a rotating shaft 2.

The rotating shaft 2 is rotatably enclosed by an upper bearing 5, a lower bearing 6, an oil seal 7, a spring 8, a mechanical seal 9, etc.

An air pipe 13 is led from above to the lower case 14 of the main body and communicates with the outside air.

An impeller 10 is attached by a mounting portion 11 below the rotating shaft 2 passing through the air pipe.

The steam flow generated by the rotation of the impeller 10 is cut off by the baffle plate 12 for spoilage.

As shown in FIG. 4, the baffle plate 12 has a wall 22 that has a sharp cut 23 facing the steam flow and is hollowed out inwardly, and has an upper plate 21 and a lower plate 20 with mounting holes 24 and 25 on the upper and lower sides. It is of no use to me.

According to experiments, when there is no baffle plate, the motor drive current is 1
Although the current was 0A, the baffle plate makes the current about 4A, which improves efficiency and makes the air bubbles in the steam flow finer, improving the steam effect.

Although the drawing shows a vertical type, a horizontal type or an inverted type may also be used. In this case, the baffle plate is made to match the shape of the impeller and is placed close to the impeller to be more effective.

Figures 3.5.6 show the details of the impeller, where Figure A is an explanatory plan view and Figure B is an explanatory cross-sectional elevational view, with common parts designated by the same reference numerals.

In each drawing, the impeller 10 is attached to the rotating shaft 2 with a mounting portion 11.
The upper surface of the impeller 10 opens into an en-pipe 13 that is integrated with the case 14, but there is a small gap between the two.

The inside of the impeller 10 forms an air chamber 16, and has a sharp tip 17 facing the inside and the direction of rotation to facilitate the passage of air through an air path 18 to an outlet 19 projecting out as the impeller 10 rotates.

Negative pressure is generated in the vicinity of the protruding outlet 19 by rotation, and outside air is naturally sucked in through the air pipe 13, eliminating the need for compressed air and saving installation and power costs for an air compressor.

The impeller has a bowl shape in Figure 3, a trapezoidal shape in Figure 5, and a trapezoidal shape in Figure 6, but the shape can be arbitrary.In particular, it is better to have air with a diameter toward the top because of the effect of centrifugal force. Air bubbles are formed and the air lift effect is also strong.

The device of the present invention is small and has low manufacturing costs, making it suitable for mass production.Since the efficiency of the baffle plate is improved, the operating power cost is low and energy saving is achieved.As the steam effect is outstanding, the aeration tank itself can be small. Not only is it possible to do this, it requires less space and is economical, but it has also become popular in recent years.
It has a wide range of effects, including aeration in certain chemical and biochemical manufacturing equipment, gas supply to microorganisms, and promotion of reactions between gas and liquid.

[Brief explanation of the drawing]

Fig. 1 is an explanatory cross-sectional elevational view of an embodiment of this device, Fig. 2 is an explanatory plan view seen from below, Fig. 4 is an explanatory view of the baffle plate for spoilage, and Figs. 3, 5, and 6 are illustrations of the impeller. In the explanatory diagram of each example, a
The figure is an explanatory plan view, and the figure b is an explanatory sectional view. The upper symbols in the figure and the parts they indicate are shown below.

Claims (1)

[Claims] 1. It has a main body 1 which is submerged in the water of a steam tank with a hanging fitting 15, and the main body 1 has a built-in vertical motor 4 that drives a rotating shaft 2 by an electric conductor 3, The rotating shaft 2 is rotatably enclosed by an upper bearing 5, a lower bearing 6, an oil seal 7, a spring 8, and a mechanical seal 9.
The lower case 14 of the main body 1 is provided with an air pipe 13 that communicates with external air, and below the air pipe 13 there is an inverter 10 that communicates with the air pipe 13 and rotates in water and is attached to a rotating shaft by a mounting portion 11. A submersible steam apparatus characterized by a structure having a baffle plate 12 for spoilage in close proximity to the impeller that cuts off the steam flow ejected from the impeller 10 rotating in the water. 2 The impeller 10 is bowl-shaped and has an air chamber 16 inwardly communicating with the en-pipe 13, and has a sharp tip 1 in the direction of rotation.
7. The submersible steam apparatus according to claim 1, characterized by having an air passage 18 which connects the air chamber and an outlet 19 which generates negative pressure by rotation. 3 The impeller 10 has a rectangular cross section and an air pipe 13 inside.
An outlet 1 having an air chamber 16 in communication with the air chamber and having a sharp tip 17 in the direction of rotation to generate negative pressure by rotation with the air chamber.
The submersible steam island 4 according to claim 1 is characterized by a structure having an air passage 18 connecting the impeller with the air passage 18 that connects the impeller with the air chamber 16 having a trapezoidal cross section and communicating with the enpipe 13 inwardly. Sharp tip 17
The submersible steam apparatus according to claim 1, characterized in that it has a structure having an air passage 18 that connects the air chamber and an outlet 19 that generates negative pressure by rotation. 5. A patent claim characterized in that the spoiler baffle plate 12 has a structure in which the baffle plate 12 is provided close to the impeller 10 and has a wall 22 curved inwardly with a sharp cut 23 designed to cut off the steam flow generated by the baffle plate 12. The submersible steam device according to item 1.