KR200330121Y1 - Chamber with Air Tribunal - Google Patents

Abstract

In order to improve the water quality of dams, intermittent aerators installed in various dams in Korea are long pipes as shown in Fig. 1, with upper parts, standing upright in the water, and there are air chambers under the pipes. Land) It is connected to the air hose which receives compressed air from the air compressor and is fixed to the bottom of the dam.

When the compressed air is supplied from the air compressor to the air chamber through the air supply hose, and the air chamber is filled with air, the air flows into the pipe at once and rises up along the pipe. At this time, the water near the bottom is pulled up to the surface to induce water circulation to improve the water quality. However, in order to supply air to the air chamber, the filling time of the air chamber varies according to the cross section of the air hose and the flow rate of the air chamber. For the intermittent operation in a short time (5-15 seconds), the diameter of the supply hose must be large. Since there are various problems, the filling time of the air chamber is increased by using the cross section of the hose (injection pipe) immediately before the air chamber injection as shown in Figs. 2, 6-2, and 7 of the air supply hose. The invention relates to an air chamber equipped with an air supply hose, which is characterized in that it is shortened.

Description

Air injection pipe intermittent aerator {Chamber with Air Tribunal}

Tubular intermittent aerators (Figure 1), which are installed upright on the dam to improve the water quality of the dam, are fixed to the bottom of the dam and are erected in the water by attaching a number of floats at the top or the proper position of the pipe. There is an air chamber, which is connected to the air compressor in the external (land) machine room by a blower hose to supply compressed air to the air chamber. For normal operation of intermittent aerators, compressed air (FIG. 4) must be supplied to the air chamber through the air supply hose in a short time (5-15 seconds) as large as the air chamber volume. Currently, the air supply hose of intermittent aeration machine installed in Korea uses the same diameter air supply hose from the machine room to the air chamber. For the intermittent operation (3-4 times / min) required normally, You must have a review. The air flow rate is obtained by multiplying the flow rate at that position by the cross-sectional area of the hose. Since the flow rate is related to the pressure, the pressure must be increased to speed up the flow rate, but when the blowing pressure increases, the air flowing into the air chamber does not collect in the air chamber. It is the situation that intermittent driving is difficult as it can be spewed out immediately like the fifth figure.

In order to fill compressed air into the air chamber in a short time (5-15 seconds) through the air blower in the air compressor, use a thick enough air blow hose or increase the air flow rate. However, in case of using thick air blower hose, economical measures and measures for physical phenomena caused by air injection must be established, otherwise normal intermittent operation will not be possible. An example of normal operation is that the air flowing into the air chamber fills the space of the air chamber in the air chamber as shown in FIG. 4 and finally air flows into the "I" portion of the pipe so that the water flows from the "d" and "d". It is flowing in and going up the water along the upright tube to the surface, but the longer the time it enters the air chamber, the slower the frequency of these operations. On the other hand, if the flow rate in the hose is increased to shorten the filling time of the air chamber, the air flowing into the air chamber as shown in Fig. 5 will immediately be ejected to "C" or "B" instead of staying in the air chamber. Therefore, an air inlet hose with a large cross-sectional area must be used to properly adjust the air inflow rate in the air chamber and to supply a flow rate corresponding to the flow rate.

The use of thick air hoses from the machine room to the air chamber is not only expensive, but also has to be prepared for physical phenomena (buoyancy) that occur underwater when air enters the pipe. The present invention aims to solve the above problems by using a large diameter air inlet (hose) instead of the entire air inlet hose as a thick hose.

The first conceptual diagram of the intermittent aerator

Second degree single injection tube air chamber section

2-1 degree single injection tube air chamber front view

3 is a cross-sectional view of a conventional air hose connection air chamber

3-1 is a plan view of a conventional air supply hose connecting air chamber

4th air injection air chamber

5th degree high pressure air injection air chamber

6 is a cross-sectional view of a single injection tube air chamber embodiment

6-1 Fig. 1 Single Inlet Tube Air Chamber Embodiment Top View

6-2 detail of single injection tube

7 is a cross-sectional view of a plurality of injection tube air chamber embodiment

7-1 is a plan view of the plurality of injection pipe air chamber embodiment

7-2 detail of multiple injection pipe

Explanation of the sign

A. Intermittent Aerators

1.Honggi Hose

2. Nippon

3. Air chamber

5. air compressor

b. Ball

d. Fixture

end. Air chamber space

I. Inside space

All. Outside the air chamber

la. Tube bottom outside

1a. Injection tube

1e. Multiple injection tube

1b. Connector

1d. Branch connector

2a. Inlet

The air chamber of the intermittent aerator has a structure as shown in FIG. 3, and the air supply hose 1 is connected to the inlet port 2 in the air chamber 3, and air injection normally required is performed at the inlet port 2 as shown in FIG. As the incoming air fills the air chamber by pushing the water out of the air chamber and finally the air flows into the "I" of the pipe, water of "Da" flows in temporarily and the air goes up along the pipe. "When water flows in, but the inflow speed is high, as shown in Fig. 5, it does not fill the air chamber" a ", but is continuously ejected to" C "in the outside of the air chamber or" I "in the pump pipe. Will not be. Therefore, it should be maintained at a proper speed without increasing the flow velocity into the air chamber. The cross section of the previous inlet cannot fill the air chamber in a short time (5-15 seconds).

The present invention aims to fill the air chamber in a short time by maintaining the inflow velocity of the air chamber at an appropriate flow rate and increasing the cross-sectional area of the inlet port. Insert the pipe 1a to enlarge the cross section of the air inlet 2a, or connect the branch injection pipe 1e to the air supply hose as shown in FIGS. 7 and 7-1 to have a plurality of inlets 2a. Will. 6-2, the thick inlet pipe 1a is connected by a connector 1b at a portion close to the end of the normally used air blower hose 1, and the thick hose is connected to the inlet port 2a corresponding to this hose. Is to fasten to. In another method, a plurality of branch injection pipes 1e are connected to the air supply hose 1 which is normally used as shown in FIG. 7-2 by using a branch pipe connector 1d, and the inlet 2a of the branch pipe is connected to an air chamber ( 3) is to fasten. In this way, air is supplied to the air chamber through the air inlet pipes (1a, 1e) with a larger cross section than the original cross section of the original air hose (1).

Since the flow rate of air is multiplied by the cross-sectional area of the flow rate, in this design, the air flow rate is slowed by the ratio of the cross-sectional area of the blower hose and the cross-sectional area of the inlet pipe, so that the cross-section of the inlet pipe is increased even if the flow rate of the blower hose 1 increases at a high pressure. The larger the cross-sectional view of the inlet 2a becomes, the larger the flow rate is, which slows down the air inlet flow rate sufficiently and the cross-sectional area is large enough to fill the air chamber in a short time, thereby enabling the required intermittent operation.

The intermittent aerators installed in the dam are installed in the water far from the land machinery room, so the hose length is long. The air supply pressure is influenced by the length, thickness, and depth of the inlet through which air is injected. The air supply volume should be used to match the size of the air chamber so that air can be sufficiently supplied. Considering it, it is not advisable to use thick air hoses.

The present invention is designed to solve the above problems and to fill the air volume required for the air chamber. The purpose of the intermittent aeration machine is to allow the normal intermittent operation to obtain the water quality improvement effect.

Claims (3)

An air inlet pipe intermittent that connects the air supply hose supplying air to the air chamber of the intermittent aeration machine to a large diameter air inlet pipe and attaches the air inlet pipe to the air chamber so that sufficient air can be supplied in a short time. Aerator The air injection pipe of claim 1, which is connected to the air chamber through an injection pipe having a large cross-sectional area as shown in FIG. The air injection pipe of claim 1, which is formed by connecting a plurality of branch injection pipes to the air supply hose and connecting a plurality of injection pipes to the air chamber as shown in FIG. 7-2.