KR200276373Y1 - Air Lift Tube with Air Shut Off Valve - Google Patents

Abstract

In order to improve the water quality of the dam, intermittent submersible aerators like the one shown in Fig. 1 keep cylindrical submerged aerators vertically in the depth of the dam and compress them in an external air compressor 3-4 times a minute. Supplied air to the air chamber at the bottom of the underwater aerator through the hose, when the air is filled in the air chamber, it flows into the cylinder tube at once and rises to the surface through the pipe. To lift it up and spread it off the surface.

On this principle, water is circulated to improve water quality.

Intermittent aeration of supply and shutoff by using an electromagnetic valve rather than continuously supplying compressed air to the air chamber of an underwater aeration machine means that the water flowing along the pipe diffuses farther from the surface of the water. Will improve.

For this reason, frequent intermittent frequency or clear intermittent aeration can be expected to improve the water quality.

However, if the inlet of the air chamber of the aeration machine into which compressed air is injected is a conventional opening, the frequency of intermittent aeration cannot be increased because it is not sensitive to the operation of the electronic valve.

In particular, when the underwater aerators are installed far away from the air compressor, the length of the hose that supplies the air becomes longer, which makes the classification of the intermittent aerators unclear.

Therefore, instead of the open inlet of FIG. 4, which is always open, the inlet through which air is injected is opened only when compressed air is injected, as shown in the representative diagram, and when the supply of air is stopped, the inlet is attached so that the inlet is closed by its own weight. To maintain the residual pressure in the hose.

In this way, the weight of the intermittent aeration can be increased and the frequency of intermittent aeration can be cleared and the aeration can be cleared according to the operation of the electronic valve without time delay, so that a great water quality improvement effect can be expected.

Description

Intermittent Underwater Equipment Self-weighting Air Chamber {Air Lift Tube with Air Shut Off Valve}

The intermittent submerged aerator of FIG. 2 is installed and operated in various dams in Korea, and various technologies are developed and applied to effectively draw and diffuse deep water to the surface.

These include techniques to improve the mold (9) holding the mouth (6) and to attach a diffuser plate (10) to diffuse water to maintain the upright.

However, this technique is different from the intermittent and accurate intermittent operation of intermittent operation, and by increasing the number of intermittent operations and accurately intermittent operation, more water can be diffused and circulated in a larger body of water.

Currently, air is injected into the air chamber of the aeration machine through the open inlet.However, in the intermittent operation where the air is sent and blocked by the electromagnetic valve, when the electromagnetic valve is closed and the air supply is interrupted, the air pressure in the long hose cannot be controlled. You can not.

Maintaining residual pressure by preventing the release of air in the hose will make the air chamber sensitive to the operation of the solenoid valve, thus increasing the intermittent frequency and making the intermittent operation clear.

The intermittent underwater aerator (FIG. 2) installed in the dam keeps the cylindrical tube 2 upright in water and compresses the compressed air from the external air compressor 5 through the electromagnetic valve 4 and the hose 3. It is injected into the air chamber 1, which is assembled to the lower part of the machine, and fills the space 2-2 of the air processing chamber to be injected to the inner wall 2-2 of the air chamber. Water flows into the cylinder tube (2) at a time and flows through the tube to the surface, the air is released into the atmosphere, and the cold water deep in the dam, which rises with the air to the surface, spreads and spreads from the surface. We improve water quality while circulating water of.

The diffusion of water is more intermittent operation that supplies or shuts off the air using electromagnetic valves rather than the continuous supply of air to the underwater aerators, so the water diffusion effect is greater and the intermittent frequency of intermittent operation is increased. It increases the circulation water.

However, the conventional method cannot increase the intermittent frequency, and when the hose is long, the distinction between supply and interruption, which is an advantage of the intermittent operation, becomes unclear, and more effects cannot be expected.

Therefore, the technical task of the present invention is to increase the intermittent frequency and to improve the water quality improvement effect by making the intermittent operation clear.

1 diagram of intermittent underwater aeration system

2nd outline of underwater aerator

3rd section

Air chamber and open inlet

The air chamber and the weight side inlet closed state

The air chamber and self-weight side inlet opening state

Fig. 7 Self-weighted closure

8th self-weighted opening

Explanation of the symbol

① Air chamber ② Cylindrical pipe ③ Hose ④ Electronic valve

⑤ Compressor ⑥ Port ⑦ Weight ⑧ Chain

2-1 Inlet 2-2 Air chamber space 2-3 Air chamber wall

A: Self-weighted a. "U" letter b. Neutrophils c. frame

w. Underwater weight of neutrophils d. The inner diameter of the "U" tube p. pressure

The intermittent operation method of the intermittent submersible aeration system (FIG. 1) is very important in terms of the water quality improvement effect. This intermittent operation is carried out by changing the pressure in the hose 3, in particular, by supplying and stopping the compressed air of the solenoid valve 4. If the hose is long, the length of the hose (3) is long, and the change in the water pressure due to the change in the water level varies in places where there is a change in the water level.

The air inlet 2-1 of the conventional air chamber 2 is open as shown in FIG. 4, and the air continues to be maintained by the residual pressure in the hose 3 even when the solenoid valve 4 is closed and the supply of air is stopped. It flows into the space (2-2), and the flow of air and water in the air chamber (in the direction of the arrow in Fig. 4) is continued without being blocked.

If the flow in the direction of the arrow in the air chamber continues, it will be a continuous operation phenomenon and intermittent operation will not appear. That is, the intermittent operation does not appear until the solenoid valve (4) is opened and air is supplied again after the flow in the air chamber is stopped.

The present invention is to attach the magnetic weight side (A) to the air inlet (2-1) of the air chamber (2) as shown in Figure 7, the magnetic weight side is attached to the U-shaped tube (a) to the air inlet (2-1) A frame having a space that can be lifted by the air pressure p in the U-tube inside the U-tube, where the weight-weight b is placed in the water at the other end of the U-tube, and the weight-ball (b) does not escape. c) to the U tube.

Due to this structure, the magnetic weight sphere b blocks the discharge port of the U-shaped tube a, and the lifting force by the air pressure p in the U-shaped tube A is increased. When the self-weight sphere (b) is heard and air is supplied to the air chamber as shown in FIG. 6, when the electromagnetic valve 4 is closed and the supply of compressed air is stopped, the air pressure in the hose 3 is lowered and the air pressure in the U-tube (a). Force by The self-weighting hole (b) is placed in the U-shaped tube (a) discharge port to block the discharge of residual air in the hose, and the residual air pressure in the hose remains. In contrast, the pressure in the hose continues to drop as the air in the hose continues to bleed off at the open inlet. When the magnetic weight valve (A) is attached, the air pressure in the hose remains constant. When the electronic valve (4) is opened and the compressed air is supplied, the magnetic weight sphere (b) is lifted immediately to supply air and the magnetic valve is closed. The middle bulb (b) immediately blocks the discharge port of the U-tube (a) and reacts within a short time, blocking the flow of air and water in the air chamber, waiting for the next intermittent operation.

The intermittent underwater aerator is a device that improves the water quality by bringing cold water from the bottom of the dam to the surface of the dam by spreading or supplying compressed air to the aerator using electronic valves.

The most important reason for intermittent operation is to spread the water that has been raised to the surface far. It is very important in terms of efficiency to increase the frequency of this diffusion operation or to make the intermittent operation clear.

So far, many years of experience in manufacturing and installation operation indicate that when the aerator is installed far from the compressor machine room, the length of the hose becomes longer, and in the place where the water level is severe, the water pressure change is equally severe. There is a difficulty. When the intermittent operation does not work normally, it is a continuous operation with continuous air coming out and the efficiency is reduced.

The purpose of the present invention is to solve these problems, and it is expected that the present invention can clarify the intermittent operation and increase the number of intermittent operations, thereby increasing the water quality improvement effect.

Claims (3)

Attach the self-weighted valve to the inlet where compressed air flows into the air chamber of the intermittent submersible aerator.If the pressure in the U-tube of the self-weighted valve rises, lift the weighted sphere. Self-healing side air chamber of intermittent submerged heavy machinery equipped with self-weight side to block the discharge of air delete delete