KR101030793B1 - Aeration type flow generator - Google Patents

Abstract

PURPOSE: An aeration type water stream generator is provided to improve the inhabiting environment of aquatic organisms by securing the water quality of reserved water in a reservoir and a lake. CONSTITUTION: A cylindrical induction pipe is prepared. Both ends of the induction pipe are open. A transferring pipe(20) includes an inlet(21) and an outlet(29). A discharging hole of a water pump is in connection with the inlet. A part of the outlet is fixed to the inner center part of the induction pipe. A self-priming pipe(30) is installed at the rear side of the outlet of the transferring pipe in order to connect the inside of the transferring pipe and air.

Description

Air mixing type water flow generator {AERATION TYPE FLOW GENERATOR}

The present invention is installed in the lower part of the reservoir and the lake to create a water flow (force) to create a circulation flow in the reservoir and the lake to prevent water deterioration due to the stagnation of the reservoir and to oxidize and decompose contaminants The present invention relates to a water flow generating device for promoting the pressure of the large-diameter induction pipe (10) in the center of the condensation outlet port (29) is installed in the inlet port 21 of the inlet port (20) of the submersible pump (40) By connecting the water into the induction pipe 10 at high pressure to generate a water flow passing through the induction pipe 10, the intake end (吸) exposed to the upper surface of the water-suction tube (自 吸管) 30 ) By forming the abdominal pipe 26, the point shaft portion 22 and the protruding nozzle 25 in the interior of the pressure feed pipe 20 connected to each other and connecting the space therebetween, thereby smoothing the high-speed injection of the protruding nozzle 25 Air mixing is possible.

Retarded waters, especially in closed waters such as reservoirs and lakes, reduce dissolved oxygen levels due to limited contact with the atmosphere and suppression of circulating flow, thereby reducing water quality and aquatic flora and fauna. The habitat environment may deteriorate.

Therefore, by installing a fluid machine such as a propeller at the bottom of the reservoir and the lake to artificially generate water flow to form a circulation flow in the stagnant reservoir water and to promote atmospheric contact, or to install aeration device to supply compressed air Treatment such as increasing the amount of dissolved oxygen may be performed, and such water flow generation and aeration may be selectively or simultaneously performed depending on the conditions of the target reservoir and the appeal.

Figure 1 shows a general water pump type water flow generator, as can be seen through the figure, the water pump type water flow generator is a discharge port of the water pump 40 in the inner center of the large-diameter induction pipe 10 ( 41 is provided with a pressure feed pipe 20 connected to the induction pipe 10 by the high-speed ejection of the pressure feed pipe 20 to induce the entrained flow (10) to form a circulation flow in the reservoir or appeal.

In addition, the suction pipe 20 is provided with a self-suction pipe 30 having an intake end exposed on the upper surface of the pressure feed pipe 20 to suck air into the water stream during high-pressure injection through the pressure pipe 20. In this case, the mixing of the air is intended to obtain the aeration effect as well as the circulation flow in the reservoir or the lake, and the specific structure thereof is shown in FIG. 2.

As can be seen through Figure 2, the pressure pipe 20 of the conventional water pump type water flow generating device to which the self-priming tube 30 is applied, the point 24, the neck 23 connected to the self-priming tube 30 and The point shaft portion 22 is configured in order to induce the mixing of air by accelerating and depressurizing the water flow fed by the submersible pump 40.

That is, the water flow discharged from the submersible pump 40 and introduced into the pressure feeding tube 20 through the inlet 21 passes through the axle portion 22 where the inner diameter gradually decreases, and the flow rate gradually increases, and the suction tube As the flow rate reaches the peak and the pressure drops to reach the neck 23 to which the 30 is connected, the outside air is sucked and mixed through the self-suction tube 30, and then the inner portion is gradually enlarged so that the enlarged portion 24 is gradually expanded. It passes through and blows into the blower outlet 29.

However, in order for air to be introduced into the pressure pipe 20 through the self-contained pipe 30, the pressure must be sufficiently reduced to below atmospheric pressure at the neck 23, which is a general underwater pump 40 and a reservoir or a lake. As it is virtually impossible to realize under the hydraulic conditions, there is a serious problem that the actual self-acting action cannot be expected, and therefore significant air incorporation is impossible.

Therefore, by connecting the pneumatic application means such as a compressor (compressor) to the self-contained pipe 30 separately, it is forced to operate by injecting compressed air, and thus there is a serious problem that additional equipment and power are required.

The present invention has been made in view of the above-described problems, and is installed in the lower part of the reservoir and the lake, and is a water flow generating device for forcibly generating water flow. , The inlet 21 is connected to the outlet 41 of the submersible pump 40 and a part of the outlet 29 is fixed to the inner center of the induction pipe 10 and the pressure feed pipe 20, In the water flow generating device which is provided on the rear side of the blower outlet 29 and connects the inside of the pressure feed pipe 20 and the atmosphere, the inside of the connection point of the suction pipe 30 of the pressure feed pipe 20 is formed. The conduit pipe 26 and the concentric tube (26) is installed on the rear side of the abdominal pipe (26) is formed with a point shaft portion 22 is gradually reduced to the pressure port (20) outlet port 29 side and the abdominal pipe (26) The front and rear ends of the space between the outer circumferential surface of the inner circumferential surface and the inner circumferential surface of the pressure feeding pipe 20 are closed. Protruding nozzle 25 smaller than the inner diameter of the () is formed, the incision pipe 27 is formed in the abdominal pipe 26 is formed between the space between the abdominal pipe 26 and the pressure feed pipe 20 and the protruding nozzle 25 and the abdominal pipe (26) Air-flowing water flow generator, characterized in that connecting the space between).

The present invention not only improves the efficiency of water generation and circulation flow formation in the reservoir, but also obtains the aeration effect without installing a separate aeration means in the reservoir and the lake to secure the water quality of the reservoir and improve the habitat environment of aquatic plants and animals. The effect of improving can be obtained.

In particular, through the high-speed injection of the protruding nozzle 25 to form a cavity (25a) in the pressure feed pipe 20, thereby inducing a smooth air inflow through the self-suction pipe 30, without a separate pneumatic device Substantial self-absorption of the upper surface of the water can be achieved, thereby improving the air mixing efficiency of the water flow generator and reducing the overall equipment cost.

1 is an explanatory view and an external perspective view of a submersible pump water flow generator operation state
Figure 2 is a partial cutaway perspective view of the guide pipe and the pressure pipe extraction of the conventional water flow generator
Figure 3 is a partial cutaway perspective view of the pressure pipe extraction of the present invention
4 is a representative cross-sectional view of the operation state of the pressure pipe of the present invention
Figure 5 is an explanatory diagram of the operation state of the pressure pipe of the present invention step by step

The detailed configuration and operation principle of the present invention will be described with reference to the accompanying drawings.

First, FIG. 3 is a perspective view of a partial cut part of the pressure pipe 20 according to the present invention. As can be seen from the drawing, the pressure pipe 20 is located inside the connection point of the self-suction tube 30 of the pressure pipe 20 according to the present invention. ) And a concentric tube (26) is installed, the back side of the tube 26 is formed with a point shaft 22, the diameter of which is gradually reduced toward the outlet port 29 of the pressure pipe (20), and the outer peripheral surface of the tube 26 and the pressure feed The front and rear ends of the space between the inner circumferential surfaces of the pipe 20 are closed.

In addition, a protruding nozzle 25 having an outer diameter smaller than the inner diameter of the abdominal pipe 26 is formed at the distal end of the axle part 22 inside the abdominal pipe 26, and an incision 27 is formed in the abdominal pipe 26 so that the abdominal pipe 26 is formed. ) And the space between the pressure feed pipe 20 and the space between the protruding nozzle 25 and the abdominal pipe 26.

That is, the cross-sectional shape of the pressure feed pipe 20 at the point where the protruding nozzle 25 is installed has a concentric shape consisting of the pressure feed pipe 20, the abdominal pipe 26, and the protruding nozzle 25, and the inlet port of the pressure pipe 20 ( When the water pump 40 connected to the 21 is operated, as shown in FIG. 4, the water accelerated by the axial shaft 22 is sprayed into the abdominal pipe 26 through the protruding nozzle 25 at a high speed, and thus, the suction pipe 30 is opened. The air introduced through is mixed in the water flow in the pressure feed pipe (20).

This self-suction effect through the self-suction tube 30 and the air mixing into the water flow in the pressure feed tube 20 is a pressure reduction while a kind of cavitation (cavitation) occurs between the outer peripheral surface of the protruding nozzle 25 and the inner peripheral surface of the abdominal pipe (26) In order to achieve the effect, smooth air incorporation by substantial self-suction action may be achieved without a separate pneumatic application means connected to the self-suction tube 30.

Depressurization and the air mixing action caused by the outside of the protruding nozzle 25 are shown step by step in FIG. 5, as shown, before the submersible pump 40 connected to the pressure feeding pipe 20 is operated. In the state where no water flow is formed in the pressure pipe 20, as shown in the upper view of FIG. 5, a space between the outer circumferential surface of the protruding nozzle 25 and the inner circumferential surface of the abdominal pipe 26 and the inner circumferential surface and the abdominal pipe 26 of the pressure pipe 20 The spaces between the outer circumferential surfaces are all filled with water.

When the submersible pump 40 is operated and water accelerated by the axle 22 is injected into the protruding nozzle 25, water in the space between the outer circumferential surface of the protruding nozzle 25 and the inner circumferential surface of the abdominal pipe 26 is discharged from the protruding nozzle 25. The pressure is gradually decompressed by the high-speed injection of the pressure, the pressure pipe 20 is completely isolated from the outside, that is, if the self-contained tube 30 is closed state space between the outer peripheral surface of the protruding nozzle 25 and the inner peripheral surface of the abdominal pipe 26 Water may evaporate in a moment due to a vacuum or a typical cavity phenomenon, but the pressure pipe 20 of the present invention is connected to the atmosphere, and as shown in the middle view of FIG. Inflow of outside air occurs.

As shown in the middle of FIG. 5 by the inflow of air through the self-suction tube 30, the space between the outer circumferential surface of the protruding nozzle 25 and the inner circumferential surface of the abdominal pipe 26 and the outer circumferential surface of the abdominal pipe 26 and the inner circumferential surface of the pressure pipe 20 The air chamber 26a and the cavity 25a are respectively formed in the space therebetween, and as the submersible pump 40 continues to operate, the cavity 25a gradually expands and the fluid flow in the pressure pipe 20 is increased. When the steady state is reached, the air chamber 26a is filled with air, and as shown in the bottom view of FIG. 5, smooth air mixing in the water flow of the pressure pipe 20 is achieved.

On the other hand, as in the elliptic enlargement part of FIG. 3, the air chamber 26a of the shape which encloses the protrusion nozzle 25 is formed by the concentric structure of the pressure feed pipe 20 and the abdominal pipe 26, The incision 27 of the abdominal canal 26 is formed in an annular shape on the tubular body of the abdominal canal 26 or radially around the abdominal canal 26 axis so that the cavity 25a of the outer circumferential surface of the protruding nozzle 25 is biased. It can be formed in a uniform form without.

10: induction pipe
20: pressure feed pipe
21: inlet
22: point shaft
23: the neck
24: point expansion
25: protruding nozzle
25a: cavity part
26: abdominal cavity
26a: air chamber
27: incision
29: spout
30: Suction tube
40: submersible pump
41: discharge port

Claims (1)

A water flow generating device installed under the reservoir and the lake forcibly generating water flow, and having a cylindrical induction pipe 10 having open ends and an inlet 21 at the outlet of the submersible pump 40. (41) is connected to the outlet port (29) part of the pressure feed pipe 20 is fixed to the inner central portion of the induction pipe (10), the pressure feed pipe (20) is installed on the back of the blowout port (29), the pressure feed pipe (20) In the water flow generating device consisting of a self-contained tube 30 connecting the inside and the atmosphere, the self-acting action of the self-contained tube 30 by the depressurization effect in the pressure feed pipe 20,
Inside the connection point of the self-priming pipe 30 of the pressure pipe 20, the pressure pipe 20 and the concentric tube 26 are installed, and the diameter of the pressure pipe 20 gradually toward the outlet port 29 of the pressure pipe 20. A reduction shaft 22 is formed and the front and rear ends of the space between the outer circumferential surface of the abdominal pipe 26 and the inner circumferential surface of the pressure pipe 20 are closed;
A protruding nozzle 25 whose outer diameter is smaller than the inner diameter of the abdominal pipe 26 is formed at the tip of the point shaft portion 22 inside the abdominal pipe 26;
An incision 27 is formed in the abdominal canal 26, and the incision 27 is formed radially around an annular or abdominal canal 26 axis in the tubular body of the abdominal canal 26 so that the abdominal canal 26 and the pressure pipe ( 20) The air-flowing water flow generator, characterized in that connecting the space between the protrusion nozzle 25 and the abdominal pipe (26).

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