JP4640935B2 - Liquid filling device - Google Patents

Description

  The present invention relates to a liquid filling device for filling a container with a liquid such as a beverage. More specifically, it is devised so that the container can be filled with the liquid while effectively preventing the temperature change of the heated or cooled liquid and preventing dust from being mixed.

  In a beverage factory, a liquid filling device is used to automatically fill a liquid such as a beverage into a container such as a plastic bottle, a bottle, or a can.

  Here, an example of the filling system including the liquid filling apparatus will be described with reference to FIG. 4 which is a plan view. FIG. 4 schematically shows each device.

  In FIG. 4, 01 is a supply conveyor, 02 is a transfer wheel, 03 is a liquid filling device, 04 is a transfer wheel, 05 is a capper, 06 is a discharge wheel, and 07 is a discharge conveyor. In this system, each of the transfer wheel 02, the liquid filling device 03, the transfer wheel 04, the capper 05, and the discharge wheel 06 has a circular shape at the outer peripheral portion so that the container (for example, a plastic bottle) can be conveyed while being gripped. Holders are provided at equal intervals along the circumferential direction. As a result, the transfer wheel 02 to the discharge wheel 06 rotate, hold the container, convey it, and deliver it.

  For this reason, the containers conveyed by the supply conveyor 01 are gripped by the holder of the transfer wheel 02 at the position A and are conveyed from the position A to the position B. At the position B, the container is transferred from the transfer wheel 02 to the liquid filling device 03, held by the holder of the liquid filling device 03, and conveyed from the position B to the position C. When transported from position B to position C, the container is filled with the liquid via the filling nozzle provided in the liquid filling device 03.

  Further, the container is moved from the liquid filling device 03 to the transfer wheel 04 at the position C, from the transfer wheel 04 to the capper 05 at the position D, from the capper 05 to the discharge wheel 06 at the position E, and from the discharge wheel 06 at the position F. It is delivered to the discharge conveyor 07 and conveyed. In the capper 05, capping for covering the container is performed.

  In the liquid filling device 03, a filling valve (having a liquid valve and a filling nozzle) and a holder are arranged at equal intervals along the circumferential direction on the outer peripheral portion of the swivel table. Further, a liquid storage tank (filler ball) that rotates together with the turning table is disposed above the turning table. The beverage stored in the filler ball is supplied to each filling valve via a liquid supply pipe.

  And while grasping a container with a holder and conveying from position B to position C, it fills a container with a drink from a filling valve, measuring the amount of filling to a container. In addition, the filling amount to a container is performed by measuring the flow volume of the drink which flows into a container, or measuring the weight of the drink with which the container was filled.

Here, an example of a conventional liquid filling apparatus will be described with reference to FIG.
In the liquid filling apparatus 1 shown in FIG. 5, the swivel table 2 rotates in a horizontal plane around the swivel axis C. A plurality of filling valves 10 and a plurality of holders 20 are arranged on the outer peripheral edge of the turning table 2 at equal intervals along the circumferential direction.
A liquid storage tank (filler ball) 30 is disposed above the turntable 2. The liquid storage tank 30 rotates together with the turning table 2.
The liquid storage tank 30 and each filling valve 10 are communicated with each other through a liquid supply pipe 40.

A flow path 12 is formed in the central portion of the main body block 11 of the filling valve 10, and a liquid valve 13 is disposed in the flow path 12. The liquid valve 13 is connected to an air cylinder 50 through a rod 14. The liquid valve 13 is moved in the vertical direction (vertical direction) by driving the air cylinder 50 in the vertical direction to perform valve opening / closing operations. That is, the valve seat 12a is formed in the lower part of the flow path 12, and when the liquid valve 13 moves downward and contacts the valve seat 12a, the valve 31 is closed and the flow of the liquid 31 is blocked, and the liquid valve 13 moves upward. Then, the valve 31 is opened by separating from the valve seat 12a, and the liquid 31 is circulated.
Further, a filling nozzle 15 is disposed at the lower end of the main body block 11.

  The holder 20 is fixed to the swivel table 2, holds the container 3, and holds the held container 3 at a position below the filling nozzle 15 of the filling valve 10.

  A liquid (beverage) 31 to be filled in the container 3 is stored in the liquid storage tank 30. In the interior of the liquid storage tank 30, a gas corresponding to the type of the liquid 31 to be filled is stored in a space above the stored liquid 31.

  The liquid supply pipe 40 has an upper end communicating with the liquid storage tank 30, and a lower end communicating with the flow path 12 of the filling valve 10 to communicate the liquid storage tank 30 and the filling valve 10. An electromagnetic flow meter 41 is interposed in the liquid supply pipe 40.

  In the liquid filling apparatus 1 having such a configuration, when the liquid valve 13 is moved upward by the air cylinder 50 and opened, the liquid 31 in the liquid storage tank 30 is supplied to the liquid supply pipe 40 and the filling valve 10. It passes through the flow path 12 and is filled into the container 3 held by the holder 20 via the filling nozzle 15. At this time, the filling flow rate is measured by the electromagnetic flow meter 41, and when the measured filling flow rate reaches a predetermined amount, the liquid valve 13 is moved downward by the air cylinder 50 to close the valve.

  Conventionally, the filling valve 10 and the liquid supply pipe 40 have an open structure as shown in FIG.

JP-A-9-110094

  As described above, the conventional liquid filling apparatus 1 as shown in FIG. 5 has an open structure in order to improve the washability. The liquid storage tank 30, the liquid supply pipe 40, and the filling valve 10 are Contact outside air or room airflow. As a result, the temperature of the liquid 31 supplied from the liquid storage tank 30 to the filling valve 10 is likely to change while flowing through the liquid supply pipe 40.

For this reason, in the liquid filling apparatus 1 having an open structure, when performing hot pack filling in which the heated liquid 31 is filled into the container, the liquid 31 flows from the liquid storage tank 30 through the liquid circulation pipe 40 and is filled. There was a problem that the temperature dropped while being supplied to the battery.
Similarly, when the cooled liquid 31 is filled in the container, there is a problem in that the temperature rises while the liquid 31 flows from the liquid storage tank 30 through the liquid circulation pipe 40 and is supplied to the filling valve 10. It was.

  In the conventional liquid filling apparatus 1 as shown in FIG. 5, the liquid 31 is naturally dropped from the filling nozzle 15 toward the container 3 for filling. For this reason, the container 3 is held by the holder 20 so that the opening is in an upward state with the upward direction. Thus, since the container 3 is in an upward state, there is a possibility that dust and bacteria enter through the opening of the container 3.

  In order to prevent such a temperature drop and dust / bacteria contamination, there is also an apparatus in which a liquid filling apparatus is provided in an aseptic chamber as shown in Patent Document 1. Since the inside of the aseptic chamber is an aseptic environment, air that has passed through a dust filter such as a HEPA (High Efficiency Particulate Air) filter after sterilization is supplied into the aseptic chamber.

  However, when the liquid filling device is provided in the aseptic chamber, there is a problem that the device structure becomes large and complicated.

  The present invention provides a liquid filling apparatus capable of effectively filling a container with liquid while effectively preventing temperature change of the liquid to be filled and preventing dust and bacteria from being mixed. With the goal.

The configuration of the present invention for solving the above problems is as follows.
A swivel table that rotates in a horizontal plane,
An inner peripheral wall which is a cylindrical member fixed on the swivel table and rotates around the same axis as the swivel table;
By being fixed to the upper end of the inner peripheral wall, a liquid is stored that is disposed at an upper position of the swivel table and in a state of protruding from the disposition position of the inner peripheral wall to the outer peripheral side, and rotates together with the swivel table. A liquid storage tank,
A plurality of filling valves attached to the swivel table side by side along the circumferential direction and having a filling nozzle at the bottom;
A liquid supply pipe disposed on the outer peripheral side of the inner peripheral wall and in a space sandwiched between the upper surface of the swivel table and the bottom surface of the liquid storage tank, and supplies the liquid in the liquid storage tank to the filling valve In a liquid filling apparatus comprising:
The filling valve is provided in a state of vertically penetrating the turning table at a position on the inner peripheral side with respect to the outer peripheral edge of the turning table, and the filling nozzle is located below the lower surface of the turning table. And
An upper end is fixed to the liquid storage tank, and a lower end is fixed to the swivel table, and includes a cover that surrounds the liquid supply pipe from the outer peripheral side by going around the periphery of the swivel table ,
Furthermore,
A dust-proof skirt on the outer peripheral side that is disposed on the outer peripheral side with respect to the filling valve in the radial direction, extends downward from the lower surface of the swivel table, and makes a round in the circumferential direction in parallel with the peripheral edge of the swivel table;
An inner dust-proof skirt that is arranged on the inner peripheral side with respect to the radial direction with respect to the radial direction, extends downward from the lower surface of the swivel table, and circulates in the circumferential direction parallel to the peripheral edge of the swivel table. It is characterized by having.
At this time, you may fix the said filling valve to a turning table via a heat insulating material.

The configuration of the present invention is as follows.
A dust-proof skirt on the outer peripheral side that is disposed on the outer peripheral side with respect to the filling valve in the radial direction, extends downward from the lower surface of the swivel table, and makes a round in the circumferential direction in parallel with the peripheral edge of the swivel table;
An inner dust-proof skirt that is arranged on the inner peripheral side with respect to the radial direction with respect to the radial direction, extends downward from the lower surface of the swivel table, and circulates in the circumferential direction parallel to the peripheral edge of the swivel table. It is characterized by having.

The configuration of the present invention is as follows.
The liquid storage tank includes a storage chamber for storing the liquid and a heat insulating air chamber formed adjacent to the storage chamber in a radial direction.
At this time, it is also characterized in that air is supplied to the warming chamber, an air filter is attached to the exhaust port, and the air is exhausted to the warming chamber side.
Furthermore, it is also characterized by exhausting air from the greenhouse to the filling nozzle side through an air filter. Of course, since the purpose is to bring the supply air temperature close to the temperature of the liquid storage tank, an air filter may be unnecessary, but it is safe to insert an air filter in order to prevent contamination by foreign matter.

The configuration of the present invention is as follows.
It has an air supply means for supplying temperature-adjusted air to a greenhouse that is a space surrounded by the cover, the liquid storage tank, the swivel table, and the inner peripheral wall .

The configuration of the present invention is as follows.
An air supply means for supplying temperature-adjusted air is provided between the outer dust skirt and the inner dust skirt.

  The structure of the present invention is characterized in that the cover is transparent.

  In the present invention, since the filling valve is provided in a state of penetrating the swivel table, the upper part of the filling nozzle is covered with the swivel table, so that dust and bacteria fall from the filling nozzle to the container filled with the liquid. Mixing can be prevented.

  Further, in the present invention, since the periphery of the filling valve including the liquid supply pipe is surrounded by the cover, the liquid supply pipe does not come into contact with external air, and the temperature of the liquid changes while flowing through the liquid supply pipe. Can be prevented.

  Moreover, since the filling nozzle of the filling valve is sandwiched between the dust skirts on the outer peripheral side and the inner peripheral side, it is possible to prevent dust and bacteria from entering the container filled with the liquid from the filling nozzle.

In the present invention, since the liquid is stored in the storage chamber of the liquid storage tank and the heat insulating air chamber is disposed adjacent to the inner and outer peripheries of the storage chamber, the temperature change of the liquid can be prevented.
Also, by forming a lid and bottom plate with a material with an insulating layer in the middle layer and an air layer above and below the liquid storage tank, it is possible to suppress the heat of the liquid storage tank in the vertical direction and the inner and outer peripheral directions. The heat insulation effect is more exhibited.

  Furthermore, the temperature of the liquid flowing through the liquid supply pipe can be kept constant by supplying the temperature-adjusted air to the storage chamber.

  Further, since the cover is transparent, the state of the liquid supply pipe in the cover can be observed from the outside.

  Hereinafter, embodiments of the present invention will be described in detail based on examples. Components similar to those of the conventional liquid filling apparatus 1 shown in FIG.

  FIG. 1 shows a liquid filling apparatus 1A according to Embodiment 1 of the present invention. In the liquid filling apparatus 1A, the disc-shaped turning table 2 is fixed to a rotating shaft provided on the turning axis C, and rotates in a horizontal plane with the rotating shaft as an axis. A plurality of filling valves 10 and a plurality of holders 20 each having an elevating mechanism (not shown) are arranged at equal intervals along the circumferential direction on the swivel table 2.

  Each filling valve 10 is provided in a state of penetrating the swivel table 2 in the vertical direction at a position on the inner circumferential side with respect to the outer peripheral edge of the swivel table 2. For this reason, the upper part of the filling valve 10 (the upper part including the part to which the liquid 31 is supplied from the liquid supply pipe 40) is located above the upper surface 2a of the swivel table 2, and the lower part of the filling valve 10 (the filling nozzle 15 is made The lower part is located below the lower surface of the turntable 2.

Each holder 20 has an elevating mechanism and is fixed to the lower surface 2 a of the swivel table 2, receives and holds the container 3 below the lower end of a dustproof skirt 70 described later, and holds the held container 3 of the filling valve 10. It is raised and held at a position below the filling nozzle 15.
Of course, the filling valve 10 and the holder 20 are arranged in pairs.

A liquid storage tank (filler ball) 30 is disposed above the turntable 2. The liquid storage tank 30 is fixed to the rotating shaft and rotates together with the turning table 2. That is, the liquid storage tank 30 is fixed to the upper end of the inner peripheral wall 4 fixed to the turning table 2. The inner peripheral wall 4 is a cylindrical member, and is fixed in a state where its axis coincides with the turning axis C.

The liquid storage tank 30 is formed by fixing a ring-shaped bottom plate 17 and four partition walls 32, 33, 34, and 35 having a cylindrical shape. The partition walls 32, 33, 34, and 35 are arranged concentrically around the pivot axis C, and the partition walls 32, 33, 34, and 35 are integrally fixed to the bottom plate 17. Yes. The space between the innermost partition wall 32 and the partition wall 33 is an inner heat insulating air chamber 36, and the space between the partition wall 33 and the partition wall 34 is a storage chamber 37. Between the wall 35 is an insulated air chamber 38 on the outer peripheral side.
That is, the storage chamber 37 that stores the liquid 31 is sandwiched between the heat insulating air chambers 36 and 37 that are formed adjacent to each other in the radial direction of the storage chamber 37.

And the liquid (beverage) 31 heated (about 90-100 degreeC) is stored by the storage chamber 37, and the air is contained in the heat insulation air chambers 36 and 38. FIG. The chambers 36, 37, and 38 are closed by the detachable lid 39 to form a tight chamber. In the interior of the storage chamber 37, a gas corresponding to the type of the liquid 31 to be filled is stored in the space above the stored liquid 31.
The liquid 31 stored in the storage chamber 37 is circulated in order to maintain the temperature during the standby operation.

  As a result, the temperature of the liquid 31 stored in the storage chamber 37 is kept warm by the air layer of the heat insulating chamber 36 and the air layer of the heat insulating chamber 37 on the inner peripheral side and the outer peripheral side.

The liquid storage tank 30 and each filling valve 10 are connected by a liquid supply pipe 40. The liquid supply pipe 40 has an upper end communicating with the liquid storage tank 30 via a joint member fixed to the bottom plate 17, and a lower end communicating with the upper part of the flow path 12 of the filling valve 10. 30 and the filling valve 10 are connected. At this time, a ring-shaped heat insulating material 19 is inserted into the mounting portion, and the filling valve 10 is fixed to the turning table 2. An electromagnetic flow meter 41 is interposed in the liquid supply pipe 40. The liquid supply pipe 40 is located on the outer peripheral side with respect to the inner peripheral wall 4.
As the liquid supply pipe 40, not only a normal pipe but also a double heat insulating pipe can be adopted.

A flow path 12 is formed in the central portion of the main body block 11 of the filling valve 10, and a liquid valve 13 is disposed in the flow path 12. The liquid valve 13 is connected to an air cylinder 50 through a rod 14. The liquid valve 13 is moved in the vertical direction (vertical direction) by driving the air cylinder 50 in the vertical direction so that the valve opening / closing operation is performed. That is, the valve seat 12a is formed in the lower part of the flow path 12, and when the liquid valve 13 moves downward and contacts the valve seat 12a, the valve 31 is closed and the flow of the liquid 31 is blocked, and the liquid valve 13 moves upward. Then, the valve 31 is opened by separating from the valve seat 12a, and the liquid 31 is circulated.
Further, a filling nozzle 15 is disposed at the lower end of the main body block 11.

  The holder 20 is fixed to the lower surface 2 a of the turning table 2, holds the container 3, and holds the held container 3 at a position below the filling nozzle 15 of the filling valve 10.

  When the liquid valve 13 is moved upward by the air cylinder 50 and the valve is opened, the liquid 31 in the liquid storage tank 30 passes through the liquid supply pipe 40 and the flow path 12 of the filling valve 10, and passes through the filling nozzle 15. Thus, the container 3 held by the holder 20 is filled. At this time, the liquid flow rate is measured by the electromagnetic flow meter 41, and when the measured liquid flow rate reaches a predetermined amount, the liquid valve 13 is moved downward by the air cylinder 50 to close the valve.

  Furthermore, in this embodiment, a transparent cover 60 formed of resin or glass is provided. The shape of the cover 60 is a cylindrical shape with the pivot axis C as the center. More specifically, the cover 60 is divided at a plurality of locations along the circumferential direction, but the cover 60 as a whole has a cylindrical shape. The lower end of the cover 60 is fixed to the swivel table 2 and the upper end of the cover 60 is fixed to the liquid storage tank 30. The upper part of 10 is enclosed from the outer peripheral side.

  For this reason, in the warming chamber 18 which is a space surrounded by the inner peripheral wall 4 on the inner peripheral side, the cover 60 on the outer peripheral side, the bottom plate 17 of the upper storage tank 30, and the lower turning table 2, The upper part of the liquid supply pipe 40 and the filling valve 10 is arranged.

The lower surface of the swivel table 2 extends downward and has a dust-proof skirt 70 on the outer peripheral side that forms a ring shape as a whole with the swivel axis C as a center, and a ring shape that extends downward with the swivel axis C as a center. A dustproof skirt 71 on the inner periphery side is provided in a detachable state. The dustproof skirts 70 and 71 are divided at a plurality of locations along the circumferential direction.
In addition, with respect to the radial direction, the lower part of the filling valve 10 (such as the filling nozzle 15) is disposed between the dust-proof skirt 70 and the dust-proof skirt 71.
In other words, the dust-proof skirt 70 on the outer peripheral side is disposed on the outer peripheral side with respect to the filling valve 10 in the radial direction, extends downward from the lower surface 2 a of the turntable 2, and extends in the circumferential direction parallel to the periphery of the turntable 2 It is going around.
The dust-proof skirt 71 on the inner peripheral side is disposed on the inner peripheral side with respect to the filling valve 10 in the radial direction, extends downward from the lower surface 2 a of the turntable 2, and surrounds the periphery of the turntable 2 in parallel. It goes around in the direction.

  The air supply device 80 passes through a dust removal filter such as a HEPA filter, and sends aseptic air heated (about 90 to 100 ° C.) between the dust skirt 70 and the dust skirt 71 via the pipe 81 ( It is supplied toward the portion where the filling nozzle 15 and the upper end opening of the container 3 are located. This air is supplied between the dustproof skirt 70 and the dustproof skirt 71, and then escapes downward (direction α).

  Further, the air supply device 80 passes through a dust filter such as a HEPA filter, and sends aseptic air heated (about 90 to 100 ° C.) through the pipe 82 to the inner peripheral wall 4, the cover 60, and the liquid storage tank 30. It supplies toward the space (the part in which the liquid supply pipe 40 and the upper part of the filling valve 10 are located) surrounded by the turning table 2. The air thus supplied escapes through the filter 83 provided on the inner peripheral wall 4.

  In the liquid filling apparatus 1 </ b> A configured as described above, the filling nozzle 15 of the filling valve 10 is located below the lower surface 2 b of the turntable 2. In other words, the upper portion of the filling nozzle 15 and the opening of the container 3 held by the holder 20 are covered with the turning table 2 and the dustproof skirts 71 and 72. As a result, it is difficult for dust and bacteria to enter the container 3 held by the holder 20 and having the opening facing upward.

  Furthermore, since sterile air is supplied to the space between the lower surface of the swivel table 2 and the dust-proof skirt 70 and the dust-proof skirt 71, the space between the dust-proof skirt 70 and the dust-proof skirt 71 becomes a simple sterile space, It effectively prevents dust and bacteria from getting into the water.

  In the liquid filling apparatus 1 </ b> A according to the present embodiment, the outer peripheral side of the liquid supply pipe 40 is surrounded by the cover 60. In other words, the liquid supply pipe 40 is located in the thermal storage room 18 that is a space surrounded by the inner peripheral wall 4, the cover 60, the liquid storage tank 30, and the swivel table 2. As a result, the liquid supply pipe 40 does not come into contact with the air outside the thermal storage room 18. Therefore, it is possible to suppress the amount of temperature drop that occurs while the liquid 31 flowing from the liquid storage tank 30 to the filling valve 10 via the liquid supply pipe 40 flows through the liquid supply pipe 40.

  Furthermore, in order to supply the heated air from the air supply device 80 to the warming chamber 18 surrounded by the inner peripheral wall 4, the cover 60, the liquid storage tank 30, and the swivel table 2, the liquid 31 flowing through the liquid supply pipe 40 is It can suppress that temperature falls.

  In addition, the warming chamber 18 surrounded by the inner peripheral wall 4, the cover 60, the liquid storage tank 30, and the swivel table 2 becomes positive pressure when air is supplied, but this air is exhausted through the filter 83. Therefore, it is possible to suppress moisture from being accumulated in this space.

  Further, the liquid 31 stored in the storage chamber 37 is sandwiched between the air layer of the heat insulating chamber 36 and the air layer of the heat insulating chamber 37 on the inner peripheral side and the outer peripheral side, and the upper part is covered with the gas in the storage chamber 37, Is insulated with air and air. For this reason, the heat radiation from the liquid 31 heated and filled in the storage chamber 37 is suppressed, and the temperature is effectively maintained.

  Furthermore, since the cover 60 is transparent, it is possible to confirm the internal operation status, the presence or absence of leakage, and the like from the outside.

  FIG. 2 shows a liquid filling apparatus 1B according to Embodiment 2 of the present invention. This liquid filling apparatus 1B is different from the liquid filling apparatus 1A in the air supply path.

  In this liquid filling apparatus 1 </ b> B, the air supply device 80 supplies aseptic air that has passed through the dust filter to the adiabatic air chamber 38 of the liquid storage tank 30 via the pipe 84. The air supplied to the heat insulating air chamber 38 is heated by the heat of the liquid 31 stored in the storage chamber 37.

  The air heated in the adiabatic air chamber 38 is surrounded by the inner peripheral wall 4, the cover 60, the liquid storage tank 30, and the swivel table 2 through a filter 85 provided on the bottom surface of the adiabatic air chamber 38. Is supplied to the heating chamber 18 to heat the holding chamber 18 and to make the holding chamber 18 positive pressure.

  The air supplied to the warming chamber 18 is supplied between the dustproof skirt 70 and the dustproof skirt 71 via the filter 86 provided in the swivel table 2 and then escapes downward (α direction). . When there is a fear of dust mixing into the container 3 by this air, it is possible to exhaust to either the inner or outer periphery.

  The structure of other parts is the same as that of the liquid filling apparatus 1A shown in FIG.

  In the second embodiment, the air can be heated in the heat insulating air chamber 38 without supplying heated air from the air supply device 80. When heating is insufficient, air may be heated by the air supply device 80.

  In each of the above embodiments, the description has been made on the assumption that the heated liquid 31 is filled into the container 3. However, it goes without saying that the present invention can be applied to the case where the cooled liquid 31 is filled into the container 3. When filling the cooled liquid 31, the air supplied from the air supply device 80 is cooled.

  The present invention can also be applied to a liquid filling device of a type in which the filling amount in a container is measured by measuring the weight of a beverage filled in the container.

As a flow meter, not only an electromagnetic flow meter but also a vortex flow meter, a turbine flow meter, an ultrasonic flow meter, and a mass flow meter can be applied, and it can be applied by a method of measuring and filling the liquid flow rate. is there.
It can also be applied to liquid level detection and control methods. Liquid level detection methods include liquid electrical conductivity, dielectric constant, light (including not only visible light but also ultraviolet and infrared regions), and radiation. It can be applied to infrared intensity or the like, and can be applied if the liquid filling height can be measured by some means.
Of course, the present invention can also be applied to a method of controlling by the time from the start of filling.

  FIG. 3 shows a liquid filling apparatus 1C according to Embodiment 3 of the present invention. The liquid filling apparatus 1C is different from the liquid filling apparatus 1A in the lid 39A of the liquid storage tank 30 and the bottom plate 17A.

The difference will be described with reference to FIG. In the liquid storage tank 30A, a bottom plate 17A and partition plates 32, 33, 34, and 35 are integrally formed, and a lid 39A is detachably mounted. The lid 39A has a ring shape to form a hollow portion, and a heat insulating material 39a is inserted into the hollow portion. The bottom plate 17A also has a ring shape to form a hollow portion, and a heat insulating material 17a is inserted into the hollow portion. The heat insulation effect of the liquid 31 in the liquid storage tank 30A is further improved by the heat insulating air chambers 36 and 38 formed by the bottom plate 17A and the lid 39A into which the heat insulating material is inserted and the partition plates 32, 33, 34 and 35. Can do.
Alternatively, the air layer may be formed without inserting the heat insulating materials 39a and 17a.

The block diagram which shows the liquid filling apparatus which concerns on Example 1 of this invention. The block diagram which shows the liquid filling apparatus which concerns on Example 2 of this invention. The block diagram which shows the liquid filling apparatus which concerns on Example 3 of this invention. The block diagram which shows the outline of an example of a liquid filling system. The block diagram which shows the conventional liquid filling apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1A, 1B, 1C Liquid filling apparatus 2 Turning table 3 Container 4 Inner peripheral wall 10 Filling valve 17 Bottom plate 18 Thermal insulation 19 Heat insulating material 20 Holder 30 Liquid storage tank 31 Liquid 40 Liquid supply pipe 41 Electromagnetic flowmeter 60 Cover 70, 71 Dust-proof skirt 80 Air supply device

Claims (10)

A swivel table that rotates in a horizontal plane,
An inner peripheral wall which is a cylindrical member fixed on the swivel table and rotates around the same axis as the swivel table;
By being fixed to the upper end of the inner peripheral wall, a liquid is stored that is disposed at an upper position of the swivel table and in a state of protruding from the disposition position of the inner peripheral wall to the outer peripheral side, and rotates together with the swivel table. A liquid storage tank,
A plurality of filling valves attached to the swivel table side by side along the circumferential direction and having a filling nozzle at the bottom;
A liquid supply pipe disposed on the outer peripheral side of the inner peripheral wall and in a space sandwiched between the upper surface of the swivel table and the bottom surface of the liquid storage tank, and supplies the liquid in the liquid storage tank to the filling valve In a liquid filling apparatus comprising:
The filling valve is provided in a state of vertically penetrating the turning table at a position on the inner peripheral side with respect to the outer peripheral edge of the turning table, and the filling nozzle is located below the lower surface of the turning table. And
An upper end is fixed to the liquid storage tank, and a lower end is fixed to the swivel table, and includes a cover that surrounds the liquid supply pipe from the outer peripheral side by going around the periphery of the swivel table ,
Furthermore,
A dust-proof skirt on the outer peripheral side that is disposed on the outer peripheral side with respect to the filling valve in the radial direction, extends downward from the lower surface of the swivel table, and makes a round in the circumferential direction in parallel with the peripheral edge of the swivel table;
An inner dust-proof skirt that is arranged on the inner peripheral side with respect to the radial direction with respect to the radial direction, extends downward from the lower surface of the swivel table, and circulates in the circumferential direction parallel to the peripheral edge of the swivel table. A liquid filling apparatus comprising: In claim 1 ,
The liquid storage apparatus, wherein the liquid storage tank includes a storage chamber for storing the liquid and a heat insulating air chamber formed adjacent to the storage chamber in a radial direction. In claim 2 ,
A liquid filling apparatus comprising air supply means for supplying air whose temperature is adjusted to a temperature-retaining chamber, which is a space surrounded by the cover, the liquid storage tank, the swivel table, and the inner peripheral wall. In claim 1 ,
A liquid filling apparatus comprising air supply means for supplying temperature-adjusted air between an outer peripheral dustproof skirt and an inner peripheral dustproof skirt. In claim 1,
The liquid filling apparatus, wherein the cover is transparent. In claim 1,
The liquid filling apparatus, wherein the filling valve is fixed to the swivel table via a heat insulating material. In claim 1,
The liquid storage tank includes a storage chamber for storing the liquid and a structure filled with a heat insulating air chamber or a heat insulating material formed adjacent to the storage chamber in the vertical direction. Liquid filling device. In claim 3 ,
A liquid filling apparatus for supplying air heated or cooled in the liquid storage tank to the greenhouse. In claim 1,
The liquid storage apparatus is characterized in that the liquid storage tank is circulated in order to maintain temperature during standby operation. In claim 1,
The liquid filling apparatus, wherein the liquid supply pipe is a double heat insulation pipe.

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