KR900009127Y1 - Pressure tank for pump - Google Patents

Abstract

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Description

Pickup Tanks for Automatic Pumps

1 is a cross-sectional view of the overall configuration of the automatic pump of the present invention.

2 is a cross-sectional view of the cargo tank as seen from the side of the present invention.

3 is a cross-sectional view of the diaphragm reduced in FIG.

4 is a cross-sectional view of the cargo tank as seen from the front of the present invention.

Figure 5 is a cross-sectional view of the overall configuration with a conventional pressure tank.

6 is a cross-sectional view of a conventional pressure tank.

Figure 7 is a cross-sectional view of the overall configuration attached to a conventional compact compression tank.

8 is a cross-sectional view of a conventional compact compression tank.

9 is a cross-sectional view of another conventional compact compression tank.

* Explanation of symbols for main parts of the drawings

1: pick up tank 2: sealed diaphragm

3: gas valve 4: pressure pipe

5: pressure switch

The present invention installs a sealed diaphragm with a constant pressure of air or nitrogen gas inside the dead tank of the automatic pump, and opens and closes the contact point of the pressure switch connected to the sealed diaphragm by reducing and expanding the sealed diaphragm according to the pressure in the dead tank. The invention relates to a pump tank for an automatic pump that enables automatic operation of the pump.

The automatic operation of the conventional automatic pump may be divided into a method using a pressure tank as shown in FIGS. 5 and 6 and a method using a small compression tank as shown in FIGS. 7 to 9.

Referring to the conventional automatic pump operation in detail, when the pressure tank is used, water flows into the tank 100 by the operation of the pump as shown in FIGS. 5 and 6, and the pump is operated even if the user locks the discharge valve or the water supply. Since the water continues to flow into the tank by the operation of the pressure in the tank is increased, this increased pressure shorts the contact of the pressure switch 101 attached to the tank 100 to stop the pump operation.

In this state, when the user opens the discharge valve or the water supply, the pressure water in the tank 100 is leaked, so that the pressure is lowered and short-circuited. The contact of the pressure switch is reconnected to start the pump.

In the case of using a compact compression tank, air or nitrogen gas corresponding to 0.8-0.9 times the pressure at which the pressure switch contact is dropped in the compressed air chamber 104 through the gas valve 103 as shown in FIGS. 7 to 9. The pump was automatically operated by combining the pump with the tank of the pump and adjusting the pressure of the water in the water chamber 105 and the gas pressure of the compressed air chamber 104 to open and close the contact of the pressure switch.

However, in the former case, when the pump is automatically operated using the pressure tank 100, the air in the tank 100 gradually dissolves in water, so that the pressure change is severe even with a very small volume change, thereby making the pressure switch 101 unnecessary. Since it is frequently operated and the operation of the pump is also frequent, the air must be automatically supplied to a separate automatic air supply device 102, and the size of the tank has to be increased in consideration of this.

In addition, in the latter case, when the pump is automatically operated using the small compression tank 106, when the water in the water chamber 105 is drained when it is not used for a long time, the diaphragm 107 is retracted and adhered to each other, thereby maintaining its original function. In order to prevent such adhesion phenomenon, a separate support 108 is placed in the center or a pleat 109 is provided to the diaphragm 107 to prevent adhesion, and the water chamber 105 and the compressed air chamber 104 ) Is not only economically burdensome, but also has been a problem in terms of its function when it is operated for a long time.

In order to solve the above problems, the present invention installs a sealed diaphragm inside the cargo tank to change the gas pressure in the sealed diaphragm according to the pressure change in the cargo tank, so that the pressure switch can be operated smoothly. When described in detail by the accompanying drawings as follows.

A gas valve (3) for injecting gas and installing a sealed diaphragm (2) which is easily reduced and inflated to a pressure change on the inner side of the tank (1) is provided in the middle of the pressure pipe (4) which is discharged above the tank. The pressure pipe (4) is configured to bind to the pressure switch (5) on the top. In the drawings, reference numeral 6 denotes a discharge pipe, 7 a check valve, and 8 a suction pipe.

In this way, the present invention combines the pressure switch (5) and seals the air or nitrogen gas corresponding to 0.7-0.8 times the pressure of the pressure switch (5) contact is short-circuited through the gas valve (3) Inject into.

In this state, when the user closes the discharge valve or the water supply, the pressure of the dead water tank 1 becomes high, and the side pressure of the sealed diaphragm 2 gradually increases the gas pressure in the milled sealed diaphragm 2, as shown in the third degree. Since the contact of the pressure switch 5 coupled to (2) is shorted to stop the operation of the pump, the inflow of water into the cargo tank 1 is stopped.

When the user opens the discharge valve or the water supply in this state, the pressure water in the cargo tank 1 flows out and the pressure in the cargo tank 1 becomes low, so that the gas pressure in the sealed diaphragm 2 is the pressure of the state first injected. It returns and the contact of the pressure switch 5 is connected again, and a pump is operated.

The present invention thus constructed has a closed diaphragm (2) in which air or nitrogen gas is introduced into the dead water tank (1), and binds the pressure switch (5) and the gas valve (3). The automatic operation is possible even without the conventional pressure tank 100, the automatic air supply 103, or the small compression tank 106, which has been a problem in terms of the surface, and the short-circuit pressure of the pressure switch 5 determined according to the capacity of the pump. The pressure in the sealed diaphragm 2 can be easily adjusted through the gas valve 3 so that the structure of the pump is simplified, thereby reducing the economic burden and improving the function of accurate automatic operation in terms of its function.

Claims (1)

The sealed diaphragm 2 in which the constant pressure air or nitrogen gas was put in the inside of the automatic pumping tank 1 was sealed, and the sealed diaphragm 2 matched with the short circuit input of the pressure switch 5 determined according to the pump capacity. A gas tank (3), characterized in that the pressure pipe (4) is connected to the pressure pipe (4) for adjusting the pressure in the gas valve (3) for automatic operation of the pump.