KR100926370B1 - Filling valve assembly with valve lift means and automatic residual water removal method - Google Patents

Abstract

The present invention relates to a filling valve assembly with valve lift means and an automatic residual water removal method. Filling valve assembly provided with a valve lift means according to the present invention includes a valve body fixed through the storage tank bottom; A filling valve condensed to be movable up and down inside the valve body and upwardly elastically moved by an upward pressure applied from below to expose the opening and to lower the liquid in the storage tank from the opening to the liquid flow path; An air inlet formed in the valve body and an air pipe formed between the valve body and the filling valve and expanded by pneumatic application, expand the air pipe pneumatic section when injecting air into the air inlet, and fill the filling valve. It characterized in that it comprises a valve lift means for moving upward.

Valve, pneumatic, residual water, lift, filling

Description

A Filling Valve Assembly Comprising Valve Lift Means And A Method For Auto Used-Water Removing}

1 is a cross-sectional view illustrating a configuration of a conventional filling valve assembly.

2 is a cross-sectional view illustrating a liquid filled state configuration by the filling valve assembly of FIG.

3A to 3E are sectional views illustrating the configuration and operation of the filling valve assembly according to the first embodiment of the present invention.

Figure 4a is a cross-sectional view illustrating the automatic residual water removal process of the filling valve of the first embodiment of the present invention.

Figure 4b is a flow chart illustrating a method for automatic residual water removal of the filling valve of the first embodiment of the present invention.

Fig. 5 is a sectional view illustrating the configuration of a filling valve assembly provided with the valve lift means of the second embodiment of the present invention.

6 is a flowchart illustrating an automatic residual water removing method of a second embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

110 ........ The valve body 111 ........ The upper body

112 ........ lower body 113 ........ chin

120 ........ Spring 130 ........ Charge Valve

130a ....... inner cylinder 130b ....... internal cylinder

140 ............. Liquid flow path

143 ........ liquid pipe 145 ........ gas flow path

146 ........ Gas inlet 150 ........ Valve lift means

151 ........ Air Pipe 153 ........ Air Inlet

155 ........ Slide Cup 200 ........ Storage Tank

310 ........ valve body 320 ........ spring

350 ........ Valve lift means 351 ........ Movement cylinder

351a .. Flange 355 ....... Fixed Cylinder

356 ........ Air passage

The present invention relates to a liquid filling valve, and more particularly, to a filling valve assembly and a residual water removing method having a valve lift means having a means for lifting the filling valve to enable automatic residual water removal.

1 and 2 are cross-sectional views illustrating the configuration of a conventional filling valve assembly.

The centering cup assembly 10 is moved upward by the centering guide means 20 and seated on the cup seating portion 31 to maintain the airtight state of the filling container and the gas / liquid flow path. When the centering cup assembly 20 applies the upward pressure to the cup seating portion 31 again in response to the elastic restoring force of the spring 33, the movable body 30, that is, the lower cylinder 35 and the upper cylinder 37, respectively, Move up by interlocking.

As the lower cylinder 35 moves upward, the suction force of the vacuum applied to the upper portion of the gas flow path 50 is released, and the pressure valve 55 relatively moves downward to open the gas flow path 50. Since the high pressure air inside the filling container 60 is absorbed into the storage tank 80 in a vacuum state, the pressure in the storage tank vacuum part 81 and the filling container 60 becomes uniform.

As the upper cylinder upper opening 51 is exposed to the storage tank liquid portion by the continuous upward movement of the lower cylinder 35 and the upper cylinder 37, the liquid flows into the liquid flow path 56 through the opening 51. Charging starts in the filling container.

At this time, since the air inside the filling container 60 is gradually absorbed into the vacuum portion 81 of the storage tank 80 through the gas flow path 50, the pressure in the filling container 60 is increased over the entire process of filling. Remain uniform.

When the filling container 60 is filled and the filling liquid surface rises and the bottom of the gas flow path 50 is closed, the head pressure and the headspace pressure in the bottle become the same, and the liquid flow stops. do.

When the filling of the filling container 60 is completed, the upper and lower cylinders 37 and 35 descend and the opening 51 is closed to close the liquid flow path 56. As soon as the centering cup assembly 10 is separated from the cup seating portion 31, the vacuum state of the filling container 60 is released.

At this time, the lower fluid flow path 53 is filled with the liquid is sucked by the suction force of the vacuum applied to the lower flow path 53 is moved to the storage tank 80 is made of water level adjustment and the pressure valve 55 is the upper Close the flow path 54.

However, the conventional filling valve assembly having the above configuration has the following problems.

Conventional filling valves are characterized in that the movable body is impossible to move up, unless the centering cup assembly 10 is applied upward pressure from the bottom of the valve assembly, the following problems occur during the production process by the filling valve of this structure It was.

Prior to filling the liquid into the filling container 60, a temperature raising operation (circulating hot water in a storage tank to raise the temperature of the filling liquid) is performed. After the operation, water remains in the liquid storage tank 80. do. If this residual water is not completely removed, the concentration of the produced product may drop, which may cause deterioration of quality. Even after the cleaning operation, the cleaning liquid in the liquid storage tank 80 must be removed, and the existing filling valve can be removed after opening or closing the filling valve by the operator after the cleaning or the temperature raising operation, or by putting the empty bottle upward to remove the centering cup assembly 10. By using the method, the worker is inconvenient, there is a possibility that the residual water removal is incomplete or the defective product is taken out.

An object of the present invention is to provide a valve lift means for automatically moving up and down the filling valve to facilitate the remaining water removal operation even when the filling container is not applied with the upward pressure by the centering cup assembly at the bottom of the valve assembly. It is to implement the filling valve assembly and automatic residue removal method.

Filling valve assembly provided with a valve lift means according to the present invention for achieving the above object, the valve body is fixed through the storage tank bottom; The valve body is condensed to be moved up and down inside the valve body. When the liquid is filled in the filling container, the valve is moved upwardly by an upward pressure applied from its lower surface to expose the opening and liquid in the storage tank is flowed through the opening. A filling valve for lowering the furnace; An air inlet formed in the valve body and an air pipe formed between the valve body and the filling valve and expanded by air inflow, and the valve enables the upward movement of the filling valve by inflow of air into the air pipe. Lift means; When the residual water in the storage tank is removed, it is selectively connected to the air inlet to provide pneumatic pressure, and even though there is no upward pressure applied from the lower surface of the filling valve, the filling valve is raised by pneumatic pressure to expose the opening and remaining water. Characterized in that comprises an air pump to enable the lowering of.

Filling valve assembly provided with a valve lift means according to the present invention for achieving the above object, the valve body is fixed through the storage tank bottom; The valve body is condensed to be moved up and down inside the valve body. When the liquid is filled into the filling container, it is elastically moved upward by an upward pressure applied downward by the filling container to expose the opening, and the liquid of the storage tank is discharged from the opening. A filling valve for lowering the liquid flow path; An air pipe, which is a space formed between the valve body and the filling valve, an air inlet for injecting air into the air pipe, and a lift member installed to be liftable in the air pipe by pneumatic pressure supplied from the air inlet; Valve lift means for raising the filling valve by raising the lift member when the pneumatic pressure is supplied from the air inlet; When the residual water in the storage tank is removed, it is selectively connected to the air inlet to raise the lift member by providing air pressure with the air pipe, and the lift member is lifted even though there is no upward pressure applied from the bottom of the filling valve. It is characterized in that it comprises an air pump that interlocks the filling valve to expose the opening to enable the remaining water to fall.

The lift member is condensed and installed between the valve body and the filling valve to move up and down, characterized in that the slide cup with an outward flange formed on the top.

The automatic residual water removal method according to the present invention for achieving the above object is an automatic residual water removal method for removing the residual water of the storage tank by using the filling valve assembly, by providing the air pressure to the air pump to the valve lift means Operating; Expanding the air pipe according to the air pressure of the air pump and moving the filling valve upward by pneumatic pressure; Exposing the opening to the storage tank in which the filling liquid is stored by the upward movement of the filling valve; Residual water removing step of the remaining water remaining in the liquid storage tank is dropped through the opening; When the washing water of the liquid reservoir in the remaining water removal step is all lowered, characterized in that it comprises a step of lowering the filling valve by stopping the operation of the air pump.

Filling valve assembly provided with a valve lift means according to the present invention for achieving the above object, the valve body is fixed through the storage tank bottom; The valve body is condensed to be moved up and down inside the valve body. When the liquid is filled in the filling container, the valve is moved upwardly by an upward pressure applied from its lower surface to expose the opening and liquid in the storage tank is flowed through the opening. A filling valve for lowering the furnace; When the remaining water is removed to remove the remaining liquid from the storage tank, the filling valve portion exposed to the outside of the valve body below the valve body is lifted from the outside to expose the opening so that the filling valve can lower the liquid in the storage tank. Valve lift means; It characterized in that it comprises an air pump for providing a pneumatic pressure for the operation of the valve lift means.

The valve lift means includes: an outward protrusion of the filling valve; A moving cylinder installed at an outer side of the filling valve and formed with a flange that is caught by the outward protrusion and moved upward by pneumatic pressure to lift the filling valve; It is installed so as to penetrate the moving cylinder up and down relative to the moving cylinder, characterized in that it comprises a fixed cylinder for selectively forming a pneumatic section by the external injection pneumatic between the moving cylinder.

The fixed cylinder is characterized in that the air flow path for providing air pressure to the pneumatic section is formed as a path from the lower surface of the fixed cylinder to the inner surface of the moving cylinder.

The automatic residual water removing method according to the present invention for achieving the above object is an automatic residual water removing method for removing residual water from a storage tank by using the filling valve assembly, operating the valve lift means to move the filling valve upward. Wow; Opening the opening in the storage tank by the operation of the valve lift means and opening the pressure valve; Residual water removing step of the remaining water remaining in the liquid storage tank is dropped through the opening; When the washing water of the liquid reservoir in the remaining water removal step is all lowered, characterized in that it comprises a step comprising the step of lowering the filling valve by stopping the operation of the air pump.

According to the present invention, even when the filling container does not apply an upward pressure at the bottom of the valve assembly, the filling valve can be automatically moved upward, thereby generating an excellent effect on the cleaning of the filling valve and removal of residual water.

Hereinafter, with reference to the accompanying drawings, the configuration of the first preferred embodiment of the filling valve assembly and automatic residual water removal method provided with the valve lift means according to the present invention having the configuration as described above will be described in detail.

3A to 3E are cross-sectional views illustrating the configuration and operation of the filling valve assembly of the first embodiment, and FIG. 4A is a cross-sectional view illustrating the automatic residual water removal process of the filling valve of the first embodiment, and FIG. 4B is a first embodiment. A flow chart illustrating an automatic residual water removal method of an example filling valve.

Filling valve assembly according to the first embodiment of the present invention, the valve body 110 is fixedly installed through the lower surface of the storage tank 200, the condensation is installed inside the valve body 110 and the elasticity of the spring 120 It comprises a filling valve 130 that is installed to be able to move up and down elastically by a restoring force, and a valve lift means 150 for moving the filling valve 130 up.

The valve body 110 of the present embodiment is fixedly installed in the liquid storage tank 200, the filling valve 130 inside the valve body 110 is installed on the coaxial through penetrating up and down to move up and down. The valve body 110 of the present embodiment is located below the liquid storage tank 200 by being fastened to an outer circumference of the upper body 111 and the upper body 111 installed through the lower surface of the liquid storage tank 201. The lower body 112 is composed of.

A spring 120 is installed in a space formed between the lower half of the upper body 111 and the upper half of the lower body 112, and the filling valve 130 extends from the lower end of the spring 120 to the protrusion 131 of the lower half. Since the filling valve 130 is a configuration capable of vertical movement in the vertical direction by the elastic restoring force.

Filling valve 130 is formed with a liquid flow path 140 and the gas flow path 145, the upper end of the liquid flow path 140 is formed by the opening 141 through which the liquid of the storage tank 200 is sucked, the lower half Is formed of a liquid pipe 143 for injecting the liquid sucked from the opening 141 into the filling container (60).

On the outer circumference of the liquid pipe 143 of the present embodiment, a pressure valve 160 for selectively opening and closing the gas flow path 145 is installed. On the outer circumference of the liquid pipe 143, the air of the filling container is vacuumed into the storage tank. A gas inlet 146 for extruding is formed.

The filling valve 130 according to the present exemplary embodiment includes an inner cylinder 130a, which is composed of a passage extending from the opening 141 to the liquid pipe 143, and is provided outside the inner cylinder 130a to provide a gas flow path 145. It forms a lower half and consists of an outer cylinder (130b) that is installed to be able to move relative to the inner cylinder (130a) in a limited range up and down.

In the upward movement of the filling valve of the present embodiment, the outer cylinder 130b is configured such that the pressure valve 160 can be opened by moving upward relative to the inner cylinder 130a in a limited range.

Valve lift means 150 of the present embodiment, the air pipe 151 is a space formed so that the air flows between the valve body 110 and the filling valve 130 and the valve by the air pipe 151 It includes an air inlet 153 which is a passage for injecting air from the outside of the body. An air pump (not shown) is installed at the air inlet.

In the present embodiment, the lower half of the lower body 112, the jaw 113 is formed, the filling valve 130 is formed in a shape that can be roughly caught on the jaw 113, the air inlet 153 is also a jaw It is formed at a position corresponding to 113. Air pipe 151 of the present embodiment is formed by a portion including the filling valve 130, the outer surface and the inner surface jaw 113 of the lower body. That is, when the filling valve 130 moves away from the jaw 113 by the pneumatic pressure during operation of the air pump, the pneumatic section of the air pipe 151 becomes large, and the air pump stops the operation so that the filling valve 130 moves downward. When moving, the air pipe 151 pneumatic section is reduced.

In addition, as shown in Figure 4a, the air pipe 151 of the embodiment of the present invention is provided with a lift member for moving the filling valve 130 in conjunction with the operation of the air pump. The lift member of the present embodiment is a slide cup 155 having a radial flange 155a formed at an upper end thereof, thereby dividing the pneumatic section of the air pipe 151 and having an open lower surface thereof. 155 is moved upward and the filling valve 130 in contact with the flange 155a is moved in conjunction with this.

Looking at the liquid filling process, when the lower centering cup assembly (not shown) in Figure 3a, Figure 3b, the filling container 60 is picked up and moved upward to press the bottom of the filling valve 130, the filling valve 130 is spring The opening 141 is opened by moving upward in response to the elastic restoring force of 120 and at the same time, the outer cylinder 130b moves upward relative to the inner cylinder 130a to open the pressure valve 160 (the embodiment of the present invention). Since the external air flows into the air pipe by the air inlet 152 during the upward movement of the filling valve 130 in the liquid filling process shown in FIGS. 3A to 3E, the equal pressure state (atmospheric pressure) of the air pipe 151 is maintained. Upward movement of the valve is possible).

As shown in FIG. 3C, when the pressure valve 160 is opened, the high pressure air of the filling container 60 is sucked into the vacuum of the storage tank 200 through the gas flow path 145, and stored with the filling container 60. The inside of the tank 200 is maintained in an equal pressure state so that the liquid can descend.

That is, when the filling container 60 and the storage tank 200 maintain the equal pressure, the liquid in the storage tank 200 introduced through the opening 141 is lowered through the liquid flow path 140 by gravity.

The liquid lowered into the liquid flow passage 140 is injected into the filling container 60 through the liquid pipe 143 at the bottom, and as the level of the filling container 60 increases, the air of the filling container 60 is a gas flow passage. Suction into the storage tank 200 through the 145, the filling container 60 is maintained in a pressure equalization state.

As shown in FIGS. 3D and 3E, when the liquid level of the liquid pipe 143 and the filling container 60 are the same, the centering cup assembly and the filling container 60 are lowered to complete the filling process.

The filling valve 130 of the present embodiment is raised by the operation of the valve lift means 150 in addition to being raised by the upwardly applied pressure of the centering cup assembly. The reason for raising the filling valve 130 by the valve lift means 150 is as follows. Although the residual water removal process is a relatively simple process, the centering cup assembly supplies the container 60 to pick up the house to move the centering cup assembly, the container 60 is picked up and moved upward, and is in close contact with the bottom of the filling valve assembly. Step to press up the filling valve 130 to be performed in sequence, but takes a lot of time, there is a problem that a lot of operation that is not necessary for the residual water removal itself.

The valve lift means 150 as described above may be used for the residual water removal function of removing residual water remaining in the storage tank 200 after the temperature raising operation or the cleaning operation.

For example, if hot water remains in the storage tank 200 after the temperature raising operation or the cleaning operation, an air pump is installed in the air inlet 153 and the air pump is switched to an operation state (operation 400).

That is, when the air pump is operated, air is injected into the air pipe 143 through the air inlet 153 of the valve body 110, and the flange 155a of the slide cup 155 is formed by pneumatic pressure generated by the air pump. ) Will receive upward pressure.

When pressure is applied to the outer cylinder 130b spanning the slide cup 155 by the upward movement of the slide cup 155, the outer cylinder 130b moves upward in response to the elastic restoring force of the spring 120 (410). Step 420).

The inner cylinder 130a installed to be connected to the outer cylinder 130b also rises in conjunction with the outer cylinder 130b, and the opening 141 is exposed into the storage tank 200, and the outer cylinder for the inner cylinder 130a ( The pressure valve 160 is opened by the relative upward movement of 130b (operation 430).

As the pressure valve 160 is opened, external air is injected into the storage tank 200, and the residual water in the storage tank 200 is lowered through the opening 141 by gravity (step 440).

When all the remaining water in the storage tank 200 descends and is removed through the liquid flow path 140 and the liquid pipe 143, the air pump operation is stopped (step 450).

When the operation of the air pump is stopped, the air pressure of the air pipe 145 is lowered, and the outer cylinder 130a is moved downward by the elastic restoring force of the spring 120, and the slide cup 155 is moved downward in conjunction with this. The remaining water removal operation ends (steps 460, 470, and 480).

Next, a configuration of a second preferred embodiment of a filling valve assembly and an automatic residual water removal system having a valve lift means according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a cross-sectional view illustrating the configuration of a filling valve assembly having the valve lift means of the second embodiment, and FIG. 6 is a flowchart illustrating the automatic residual water removing method of the second embodiment.

In the case of the filling valve assembly 300 of the second embodiment of the present invention, there is no lower body among the upper body and the lower body of the valve body 310 and the filling valve 330 is lower than the storage tank 200 in comparison with the above embodiment. Or is the configuration that can be prevented from being separated over the upper surface of the upper body (310).

The filling valve assembly 300 of the second embodiment allows the valve to be moved upward by an upward pressure applied from a centering cup assembly (not shown) which is in close contact with the bottom surface of the filling valve 330 during liquid filling. It is provided.

That is, the removal of residual water is possible by simply opening the opening by raising the filling valve 330. In order to operate the centering cup assembly, the centering cup assembly supplies a container to the house, and picks up the container and moves upwards. The step of pressing up the filling valve 330 in close contact with the bottom of the filling valve assembly should be performed in sequence, but it takes a lot of time, and there is a problem that a lot of operation is not necessary for the residual water removal itself.

This embodiment is provided with a separate valve lift means 350 for moving the filling valve 330 up to remove the residual water, which is the same as the first embodiment to lift the filling valve through the configuration of the air pipe 151 It is the same purpose.

The valve lift means 350 according to the present embodiment includes an outward protrusion 331a formed outside the outer cylinder 331 constituting a part of the filling valve 330, and a flange 351a that extends over the bottom surface of the outward protrusion 331a. It includes a movable cylinder 351 provided, and a fixed cylinder 355 relative to the moving cylinder 331 relative to the moving cylinder 351 according to the pneumatic pressure.

The moving cylinder 331 is installed to surround the filling valve 330 in the outer circumference and is formed in a ring shape having an open lower surface thereof, and an inward flange 351a contacts the outward protrusion 331a at the inner lower surface of the filling valve 330. It is a structure that can lift upwards.

The fixed cylinder 355 of this embodiment is installed in a cylindrical shape penetrating through the moving cylinder 351 and is configured to support one end of the moving cylinder 351 is fixed to the bottom of the storage tank 200. The upper surface of the lower half of the fixed cylinder 355 forms a shape corresponding to the inner shape of the moving cylinder 351, and is configured to form a pneumatic section in the shanghai east of the moving cylinder 351.

In addition, the fixed cylinder 355 is provided with an air passage 356 for supplying air to a space in contact with the moving cylinder 351 from the lower surface of the fixed cylinder 355 to the inner surface of the moving cylinder 351.

Therefore, when the air is injected into the air passage 356, the moving cylinder 351 is moved upward by the pneumatic and the external cylinder 331 spanned therein is configured to move upward.

Looking at the residue removal process according to the second embodiment is as follows.

If there is residual water to be removed in the storage tank 200, in order to remove it, an air pump is installed on the bottom of the fixed cylinder 355 and the air pump is operated (operation 500).

When the air injected into the air passage 356 from the air pump pressurizes the lower surface of the moving cylinder 351, the moving cylinder 351 is raised by pneumatic pressure, and the moving cylinder 351 is raised to raise the moving cylinder 351. The outer cylinder 331 in which the flange 331a is extended to the outward protrusion 351a is raised (steps 510 and 520).

When the outer cylinder 331 is moved upward against the elastic restoring force of the spring 320, the inner cylinder 332 is also moved upward in conjunction with the outer cylinder 331, and communicates with the inside of the storage tank 200 and the opening 341 (first). Step 530).

In addition, since the pressure valve 360 closes the gas flow path 345 by the suction force of the vacuum inside the storage tank in the state where the filling valve 330 is lowered in the storage tank 200, the external air is stored in the storage tank 200. However, when the filling valve 330 moves upward, the suction force of the vacuum is released and the pressure valve 360 is opened (operation 530).

Therefore, the outside air is sucked through the gas inlet 346 outside the liquid pipe 343 and is sucked into the vacuum of the storage tank 200 via the upper gas flow path 345.

Air is sucked into the storage tank 200 through the gas flow path 345, and the liquid of the storage tank 200 descends via the opening 341, and the liquid dropped down to the outside through the liquid pipe 143. The remaining water inside the liquid storage tank 200 may be removed (operation 540).

When the residual water in the storage tank 200 is sensed to be completely removed or the operator manually stops the operation of the air pump, the pneumatic section formed by the moving cylinder 351 and the fixed cylinder 355 decreases and the moving cylinder 351 is lowered (step 550, step 560).

When the moving cylinder 351 is lowered, the outer cylinder 331 is lowered by the elastic restoring force of the spring 320 and the inner cylinder 332 installed to be connected thereto is lowered to complete the residue removal process (step 580). .

In the first and second embodiments, a configuration of moving the filling valve 330 and the outer cylinder 331 upward by using pneumatic pressure is described, but the scope of the present invention is not limited thereto. Any configuration that can be directly or indirectly connected to the valve to move up can be equivalent to this. For example, in the present invention, the connecting portion connected to the filling valve and an integral configuration for moving the filling valve upward in association with the connecting portion may operate as the valve lift means of the present invention. In addition, the method of moving up and down the connecting portion is not limited to the method using the pneumatic, it is to include a variety of methods of upward movement that can be adopted by those skilled in the art, including the method using a motor.

It is obvious that the scope of the present invention is not limited to the above embodiments, but is determined by the matters described in the claims, and includes various modifications and adaptations made by those skilled in the art in the ranges equivalent to those described in the claims.

The present invention is provided with a valve lift means of the configuration as described above, even if the filling container does not apply the upward pressure from the bottom of the valve assembly can automatically move up the filling valve, saving time in the removal of the remaining liquid storage tank and work The high degree of completion of the product produces an excellent effect.

Claims (8)

A valve body fixedly installed through the lower surface of the storage tank; The valve body is condensed to be moved up and down inside the valve body. When the liquid is filled in the filling container, the valve is moved upwardly by an upward pressure applied from its lower surface to expose the opening and liquid in the storage tank is flowed through the opening. A filling valve for lowering the furnace; An air inlet formed through one side of the valve body and an air pipe formed between the valve body and the filling valve and expanded by air inflow through the air inlet, and the filling valve is expanded by the expansion of the air pipe. Valve lift means for enabling upward movement of the vehicle; When the residual water in the storage tank is removed, it is selectively connected to the air inlet to provide pneumatic pressure, and even though there is no upward pressure applied from the lower side of the filling valve, the filling valve is raised by the air pipe expansion to open the opening. Filling valve assembly having a valve lift means, characterized in that it comprises an air pump to expose and allow the remaining water to fall. A valve body fixedly installed through the lower surface of the storage tank; The valve body is condensed to be moved up and down inside the valve body. When the liquid is filled into the filling container, it is elastically moved upward by an upward pressure applied downward by the filling container to expose the opening, and the liquid of the storage tank is discharged from the opening. A filling valve for lowering the liquid flow path; An air pipe, which is a space formed between the valve body and the filling valve, an air inlet for injecting air into the air pipe, and a lift member installed to be liftable in the air pipe by pneumatic pressure supplied from the air inlet; Valve lift means for raising the filling valve by raising the lift member when the pneumatic pressure is supplied from the air inlet; When the residual water in the storage tank is removed, it is selectively connected to the air inlet to raise the lift member by providing air pressure with the air pipe, and the lift member is lifted even though there is no upward pressure applied from the bottom of the filling valve. And an air pump that interlocks with the filling valve to expose the opening to allow the remaining water to fall. 3. The valve lift means according to claim 2, wherein the lift member is a slide cup condensed between the valve body and the filling valve to move up and down, and an outward flange is formed at an upper end to divide the air pipe space. Filling valve assembly. An automatic residual water removal method for removing residual water in the storage tank by using the filling valve assembly according to any one of claims 1 to 3, Providing air pressure to the air pump to operate the valve lift means; Expanding the air pipe according to the air pressure of the air pump and moving the filling valve upward by pneumatic pressure; Exposing the opening to the storage tank in which the filling liquid is stored by the upward movement of the filling valve;  Residual water removing step of the remaining water remaining in the liquid storage tank is dropped through the opening; And when the washing water of the liquid reservoir is all lowered in the residual water removing step, stopping the operation of the air pump to lower the filling valve. A valve body fixedly installed through the lower surface of the storage tank; The valve body is condensed to be moved up and down inside the valve body. When the liquid is filled in the filling container, the valve is moved upwardly by an upward pressure applied from its lower surface to expose the opening and liquid in the storage tank is flowed through the opening. A filling valve for lowering the furnace; When the remaining water is removed to remove the remaining liquid from the storage tank, the filling valve portion exposed to the outside of the valve body below the valve body is lifted from the outside to expose the opening so that the filling valve can lower the liquid in the storage tank. Valve lift means; Filling valve assembly having a valve lift means characterized in that it comprises an air pump for providing a pneumatic pressure for the operation of the valve lift means. The method according to claim 5, The valve lift means, An outward protrusion of the filling valve; A moving cylinder installed at an outer side of the filling valve and formed with a flange that is caught by the outward protrusion and moved upward by pneumatic pressure to lift the filling valve; The valve lift is installed so as to penetrate the moving cylinder up and down, and comprises a fixed cylinder to move relative to the moving cylinder relative to the moving cylinder, and selectively forming a pneumatic section by an external injection pneumatic between the moving cylinder. Filling valve assembly with means. The method of claim 6, wherein the fixed cylinder, And a pneumatic flow path for providing pneumatic pressure to the pneumatic section is formed by a path from the lower surface of the fixed cylinder to the inner surface of the moving cylinder. An automatic residual water removal method for removing residual water in a storage tank using the filling valve assembly according to any one of claims 5 to 7, Operating the valve lift means to move the filling valve upward; Opening the opening in the storage tank by the operation of the valve lift means and opening the pressure valve; Residual water removing step of the remaining water remaining in the liquid storage tank is dropped through the opening; And when the washing water of the liquid reservoir is all lowered in the residual water removing step, stopping the operation of the air pump to lower the filling valve.

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