KR101693490B1 - Air chamber - Google Patents

Abstract

The present invention relates to an air chamber, comprising: a body in which water introduced by pumping is stored for a set water level by internal pressure of the body; A drain pipe provided in the body and discharging a portion of the inflow water exceeding a set water level by pressure inside the body; And a guide provided at an inlet side of the water discharge pipe to guide an inflow direction of the water.
According to the present invention, when the water flowing into the air chamber is pumped to a certain extent by the pumping, the water level is not raised due to the internal pressure, so that the pulsation phenomenon is reduced by the physical method. It prevents the increase of the pump load in the process of pushing the residual air in the bent part of the pipe by installing it, and it is possible to omit the elbow which is necessary in the construction of the bent pipe, so that the structure is simple, There is a possible effect. Further, the present invention has an effect of allowing only the drain water discharged to the outlet to pass the check valve function with the ball inserted into the outlet side of the body.

Description

[0001]

The present invention relates to an air chamber, and more particularly, to an air chamber for preventing the pump from being pulsated by continuously discharging inflow water exceeding a preset level by a pressure difference.

In general, an air chamber refers to a pressure regulating device in which water is contained in a lower portion of a pressure vessel, and a space in which air exists in a closed space above the pressure chamber is formed.

In the case of the air pump, the air chamber is used so that pulsation can be minimized on the discharge side since the sludge is generated due to the nature of the metering pump, and the air chamber can be supplied at a constant flow rate.

Here, the pulsation phenomenon refers to a phenomenon that is caused by a suction / discharge action of the diaphragm pump when the diaphragm pump is operated, and is a movement that operates periodically and constantly like a human pulse. In order to prevent the pulsation phenomenon An air chamber is provided between the diaphragm pump and the chemical injection tank to prevent a collision or a pressure drop / rise phenomenon during a sudden change in the velocity of the liquid.

Particularly, when the water hammer phenomenon occurs on the discharge line side of the pump, the air chamber absorbs the impact and does not affect the pump.

At this time, the water hammer refers to a pressure fluctuation caused by sudden acceleration or deceleration of the fluid velocity. Potential water hammer problems should be considered when reviewing piping design, as this pressure fluctuation can also cause serious cases where water piping can be damaged. In other words, a thorough pressure surge analysis should be performed to prevent malfunctions in the water piping system.

A technology related to such an air chamber has been proposed in Published Utility Model Publication No. 1999-012762.

Hereinafter, the air chamber disclosed in the publication of Utility Model Publication No. 1999-012762 will be briefly described as a prior art.

1 is a front sectional view of an air chamber in a public utility model publication No. 1999-012762 (hereinafter referred to as "prior art 1"). 1, the air chamber 30 of the prior art 1 includes an air chamber 30 installed in the output line of the diaphragm pump to prevent pulsation generated when the diaphragm pump is inhaled to the diaphragm pump, A rod 25 installed to extend to the upper portion of the boom 27 and an air injecting body 26 provided in a chamber having the air injection passage 26b at one side thereof, One side of the air inlet 26 is opposed to the other end of the spring 23 abutting on the inner side of the air injecting body 26 and the rod 25 is abutted on the lower side thereof. Closing means (24) for blocking the air introduced from the air injection passage (26b) at a normal time and the opening / closing means (24) for moving the rod (25) 24 are connected to the air injection passages 26b And it features a close.

However, since the opening / closing means 24, which is automatically opened and closed according to the oil level, is implemented by a mechanical structure, the air chamber in the air chamber according to the prior art 1 can not be adjusted in the air chamber during a malfunction of the opening / closing means 24, .

In the prior art 1, an air injection path 26b is provided on one side of the air injection body 26 in a direction orthogonal to the through hole 26c. Through this structure, the output trunk 4 is bent, (Bubbles may be formed at the bending portion, in which case the water must be pushed out like bubbles).

2, a system to which the air chamber 30 of the prior art 2 is applied is configured such that water stored in the main tank 10 is pumped by the diaphragm pump 40, Flows into the air chamber 30 and is not introduced by the pressure of the air filled in the air chamber 30 and is forcibly discharged to the outside of the air chamber 30 through the second connection pipe 14, The water supplied from the first connection pipe 12 and the water discharged from the second connection pipe 14 are discharged to the third connection pipe 16 and supplied to the auxiliary tank 20.

In this prior art 2, once the diaphragm of the diaphragm pump 40 is pushed once, water is introduced into the air chamber 30 through the first connection pipe 12 and the second connection pipe 14, When the water is pushed and pulled by the operation of the diaphragm in the process of being discharged to the third connection pipe 16 together with the water supplied from the first connection pipe 12 due to the internal pressure of the diaphragm, A solution to this is required.

Korean Utility Model Publication No. 1999-012762

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to reduce the pulsation phenomenon by a physical method by allowing water to flow into the air chamber by pumping to some extent, And it is an object of the present invention to provide an air chamber which can be installed so that the inlet pipe and the discharge pipe are in a straight line state, thereby preventing an increase in the pump load at the bent portion of the pipe and reducing components such as an elbow.

It is another object of the present invention to provide an air chamber in which a ball is inserted into an outlet of a body so that only a drain water discharged to an outlet can pass therethrough.

In order to achieve the above object, the present invention provides a water purifier comprising: a body in which water introduced by pumping is stored for a set water level by internal pressure of a body; A drain pipe provided in the body and discharging a portion of the inflow water exceeding a set water level by pressure inside the body; And a guide provided at an inlet side of the drain pipe and guiding an inflow direction of the water.

Meanwhile, the guide may be formed in an inverted conical shape.

A radial groove may be formed on the bottom surface of the guide.

Here, the inlet and the outlet of the body may be arranged on the same line.

In particular, the air chamber may be installed at the outlet side of the diaphragm pump.

In addition, a separate pump may be installed at the outlet of the body, and a ball may be inserted into the outlet of the body so that the ball can open and close the outlet depending on whether the pump is operated or not.

According to the present invention, when the water flowing into the air chamber is pumped to a certain extent by the pumping, the water level is not raised due to the internal pressure, so that the pulsation phenomenon is reduced by the physical method. It prevents the increase of the pump load in the process of pushing the residual air in the bent part of the pipe by installing it, and it is possible to omit the elbow which is necessary in the construction of the bent pipe, so that the structure is simple, There is a possible effect.

Further, the present invention has an effect of allowing only the drain water discharged to the outlet to pass the check valve function with the ball inserted into the outlet side of the body.

1 is a front cross-sectional view of an air chamber according to Prior Art 1. Fig.
2 is a schematic view showing a system in which an air chamber according to the prior art 2 is installed.
3 is a perspective view showing an air chamber according to the present invention.
4 is a side sectional view showing an air chamber according to the present invention.
5 is a schematic view showing a state where a check valve function is added to an air chamber according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

FIG. 3 is a perspective view illustrating an air chamber according to the present invention, and FIG. 4 is a side sectional view showing an air chamber according to the present invention. Referring to FIG.

The air chamber 100 according to the present invention includes a lower flange 110, a lower connector 120, a lower cover 130, a body 140, a drain pipe 150, a guide 160, A lower cover 130, a body 140, an upper cover 170, and an upper connector 180. The upper connector 180 includes a cover 170, an upper connector 180, and an upper flange 190, A gasket or the like.

The lower flange 110 has a circular plate shape and a hole is formed through the hole so that the lower end of the lower connector 120 is engaged with the center.

The lower connector 120 is formed in a stepped shape and has a lower end inserted and fixed in a hole of the lower flange 110 and a spiral groove formed at an upper end outer peripheral surface thereof so as to be screwed to the center of the lower cover 130. At this time, a stepped hole is formed in the lower connection part 120.

The lower cover 130 has a circular spiral hole formed at its center so as to be screwed with a spiral protrusion formed at the upper end of the lower connector 120.

The body 140 is a cylindrical shape fixed to the outer circumferential surface of the lower cover 130 and is a space in which water is introduced into the inside through a stepped hole formed in the lower connector 120 and then stored. At this time, the body 140 is a space in which the water introduced by the pumping of the pump is stored by the internal pressure for the set water level.

Further, a line pipe connector or the like for forming an air flow path may be provided on the outer circumferential surface of the body 140.

The water pipe 150 is provided in an upright position in the body 140 so that a portion of the inflow water exceeding the set water level is discharged by the pressure inside the body 140. The inflow hole 152 Is formed.

Here, the inflow hole 152 formed at the lower end of the water discharge pipe 150 is provided in a zigzag form. For example, when the inlet holes 152 are formed in four, the spaced pair and the other pair are formed to have different heights.

The guide 160 is provided on the inlet side of the lower end of the drain pipe 150 to guide the inflow direction of the water flowing through the lower connection pipe 120.

At this time, the guide 160 is formed in an inverted conical shape to allow water to flow along the inclined surface. Furthermore, although not shown in the drawings, the guide 160 may have a radial groove formed in an inclined surface to impart a straightness to the inflow direction of the water through the radial groove. Meanwhile, the guide 160 is illustrated as having an inverted conical bottom surface, but the present invention is not limited thereto, and the inverted prismatic or inverted hemispherical shape can be used.

The upper cover 170 is formed in a circular plate shape and has a spiral hole formed therethrough so as to be screwed with the spiral protrusion formed at the lower end of the upper connector 180.

The upper connector 180 is formed in a stepped shape and has an upper end inserted into a hole of the upper flange 190 and a lower end outer peripheral surface formed with a helical groove so as to be helically fastened to the center of the upper cover 170, A stepped hole 182 is formed to penetrate through the upper end of the drain pipe 150 so as to be inserted and fixed.

The holes of the lower connector 120 on the inlet side of the body 140 and the holes 182 of the upper connector 180 on the outlet side of the body 140 are arranged on the same vertical line, It is possible to prevent the pump load from rising. This is because, as in the conventional art, when the pipe is bent, the air that is formed at the bending portion must flow with water as the load is generated in the pump.

The upper flange 190 is formed in a circular plate shape and has a hole through which the upper end of the upper connector 180 is coupled to the center.

Therefore, the operation of the air chamber 100 according to the present invention is as follows.

First, while the pump is operating, water flows into the body 140 along the pipe connected to the pump and the hole of the lower connector 120 connected to the end of the pipe.

Next, the water introduced into the body 140 moves along the bottom surface of the inclined guide 160 in the direction of the inner circumferential surface of the body 140.

At this time, when the water flowing into the body 140 reaches the predetermined water level, the air inside the body 140 is compressed and the water level can not rise due to the internal pressure. After that, 152 and then discharged through the holes 182 of the upper connector 180 to the outside of the air chamber 100.

When the water flowing into the chamber is pumped to some extent by the pumping, the water stored in the body 140 is compressed as the water rises, and the water level is discharged without being raised due to the internal pressure, And the inlet pipe and the discharge pipe can be installed in a straight line state to prevent an increase in the pump load at the bent portion of the pipe and to reduce the number of components such as an elbow.

Meanwhile, the air chamber 100 of the present invention can be installed directly on the outlet side of a diaphragm pump (not shown) or the like, thereby reducing the length of the pump and the air chamber.

5 is a schematic view showing a state where a check valve function is added to an air chamber according to the present invention.

The present embodiment is characterized in that the contact member 220 is positioned at the bottom of the hole 182 of the upper connector 180 and the ball 230 is inserted into the hole of the contact member 220 to connect the upper flange 190 A diaphragm pump provided on the inlet side of the air chamber 100 at the end of the pipe 200 is provided at the outlet side. At this time, the contact member 220 may be formed of a rubber material or the like.

A separate branch pipe is provided between the upper connector 180 and the connecting pipe 200 so that the water in the air chamber 100 or the water pumped by the pump 210 installed on the outlet side of the air chamber 100 Can be selectively discharged.

In this case, when the diaphragm pump installed on the inlet side of the air chamber 100 operates, the ball 230 rises by the pumping force and water is discharged to the outlet through the hole 182 of the opened upper connector 180 When the diaphragm pump does not operate or a separate pump 210 installed on the outlet side of the air chamber 100 operates, the ball 230 is lowered and the hole 182 of the upper connector 180 is closed It is possible to perform a check valve function to prevent the inflow of water.

When the ball 230 is provided with an elastic member (not shown) on the upper side of the ball 230, the ball 230 always closes the hole 182 of the upper connector 180, The water is discharged through the hole 182 of the upper connector 180 only by the operation of the diaphragm pump installed on the side of the upper connector 180. When the diaphragm pump stops operating, The hole 182 can be closed.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the equivalents of the appended claims, as well as the appended claims.

100: air chamber
110: Lower flange
120: Lower connector
130: Lower cover
140: Body
150: Water pipe
160: Guide
170: upper cover
180: Upper connector
190: upper flange

Claims (6)

A body in which the water introduced by the pumping is stored for a preset level by internal pressure of the body;
A drain pipe provided inside the body and having an inflow hole radially formed at a lower end thereof so that a portion of the inflow water exceeding the set water level is discharged by the pressure inside the body; And
And a guide provided at an inlet side of the water discharge pipe to guide an inflow direction of the water,
Wherein the upper surface area of the guide is formed larger than the outer diameter of the water discharge pipe to change the traveling direction of the water to be collided toward the inflow hole,
The water flowing into the body flows outward along the inclined bottom surface of the guide formed in the inverted conical shape and moves upward so that the air stored inside the body is compressed as the water rises when the water rises inside, Which causes the water level to rise without being raised. delete The method according to claim 1,
And a radial groove is formed on the bottom surface of the guide. The method according to claim 1,
Wherein an inlet and an outlet of the body are arranged in the same line. The method according to claim 1,
And the air chamber is installed at an outlet side of the diaphragm pump. The method according to claim 1,
Wherein a separate pump is provided at an outlet of the body and a ball is inserted into an outlet of the body to perform a check valve function to open and close the outlet according to whether the pump is operated.

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