JP2012035884A - 60-liter inner package combined container and chemical liquid discharging tube - Google Patents

Abstract

The present invention provides a 60 liter inner bag composite container capable of reducing complicated work, and a chemical solution discharge tube for the 60 liter inner bag composite container.
SOLUTION: It is made of resin, contains 60 liters of a chemical solution that requires high cleanliness, is provided with an inner container 110 provided with a liquid inlet / outlet portion 112, and is made of steel, and is formed by winding a base plate 122 around a body 121. And the exterior container 120 formed by winding the top plate 123 around the body and accommodating the interior container along the inner surface of the storage portion 120a.
[Selection] Figure 1

Description

  The present invention relates to an inner bag composite container having a capacity of 60 liters, in which an inner container made of resin is provided in an outer container made of steel, and a chemical solution discharge tube for the 60 liter inner bag composite container.

  For example, in a steel container for storing food or chemicals, the inside of a resin container for storing the food or chemicals to prevent the occurrence of corrosion or the like due to direct contact of the food or chemicals with the inner surface of the steel container The form of the inner bag composite container 10 as shown in FIG. 11 in which the container is housed in a steel outer container is employed.

  In the inner bag composite container 10, the inner container 1 has a main body portion 1 a made of polyethylene and formed in a bag shape, and an inlet / outlet 1 b for taking in and out the filling is formed integrally with the container main body portion. ing. In addition, the outer peripheral surface of the entrance 1b is shape | molded by the external thread shape.

On the other hand, the outer container 2 of the inner bag composite container 10 is wound with a body 2a made of a cylindrical steel plate and a ground plate 2b made of a steel plate to form a storage portion.
And after loading the said inner container 1 in the said accommodating part, in the state which made the said entrance 1b protrude from the opening formed in the steel plate top plate 2c, the fuselage | body 2a and the top plate 2c are wound up, and steel The inner bag composite container 10 in which the resin inner container 1 is housed in the outer container 2 is manufactured. After injecting the filling material into the inner bag composite container 10, the cap 3 is screwed into the entrance / exit 1 b protruding from the top plate 2 c to seal the filling material.

  Examples of the chemical solution include, for example, a CMP slurry, a photoresist, a developer, an etching solution, and a cleaning solution in the semiconductor field, and a photoresist, a color resist, and a color filter material in the liquid crystal field. In addition, some of these chemical solutions require light shielding, and the outer container 2 made of steel has light shielding properties. Therefore, the use of the inner bag composite container 10 is advantageous also in this respect.

  When handling chemicals in the semiconductor field or the like, high cleanliness is required for the inner composite container 10 as well as the inner container 1. Further, even when the chemical solution is discharged, high cleanliness is required. As a discharging method, a method of discharging using a dispenser having the discharging tube attached with the cap 3 removed is employed. This includes a pump-up system that sucks up the chemical liquid with a pump, or a pressurization system that pushes out the chemical liquid by injecting nitrogen gas or the like into the can and pressurizing it.

JP 2007-45429 A

  As the above-described inner bag composite container for chemical solution used in the semiconductor field or the like, a container using a so-called pail can having a capacity of 20 liters is widely used. On the other hand, as described above, since a method using a dispenser is adopted for discharging the chemical liquid, it is necessary to attach and detach the dispenser to and from the container every time about 20 liters of chemical liquid is discharged. Complicated work is forced.

  Moreover, the chemical | medical solution used in the semiconductor field | area etc. is very expensive, and there exists a user's request | requirement of reducing the residual liquid amount in an inner bag composite container as much as possible from a cost side.

  The present invention has been made to solve such a problem, and provides a 60-liter inner bag composite container capable of reducing troublesome work, and the 60-liter inner bag composite container. It aims at providing the chemical | medical solution discharge tube for use.

In order to achieve the above object, the present invention is configured as follows.
That is, the 60-liter inner bag composite container according to the first aspect of the present invention is made of resin, contains a chemical solution that requires high cleanliness for handling, has a storage capacity of 60 liters, and has a liquid inlet / outlet on the top surface. An interior container with a section;
A ceiling made of steel, containing the interior container along the inner surface of a storage part formed by winding a base plate around a cylindrical body, and further forming a mouth opening through which the liquid inlet / outlet part can protrude An outer container formed by winding a plate around the body, and
It is provided with.

  In addition, the liquid inlet / outlet portion of the inner container has a holding screw and a cap screw in two steps concentrically along the axial direction of the liquid inlet / outlet portion on the outer peripheral surface of the liquid inlet / outlet portion. The holding screw is formed close to the top surface, has a diameter that passes through the opening for the mouth of the outer container, and is used for screwing a hanger that holds the liquid inlet / outlet portion on the top plate. The cap screw is formed away from the top surface, has a smaller diameter than the holding screw, and is composed of a screw for screwing a cap that closes the mouth of the liquid inlet / outlet portion. May be.

  Moreover, the said top plate may form a hollow in the circumference | surroundings of the said opening for mouths from the said opening for mouths to the area | region beyond the center of the said top plate.

  The exterior container is formed of an electrogalvanized steel sheet that can be omitted from painting, and the chemical solution is a chemical solution used in at least one of the semiconductor field and the liquid crystal field, and the interior container is a chemical solution specification. It may be made of high density polyethylene resin and blow molded under high quality control.

Moreover, the chemical | medical solution discharge tube in the 2nd aspect of this invention can be mounted | worn with the liquid inlet-and-outlet part in the interior container with which the 60 liter inner bag composite container in the said 1st aspect is equipped, The chemical | medical solution accommodated in the said interior container is outside a container. The chemical solution discharge tube for the 60 liter inner bag composite container to be discharged,
It is made of a flexible and liquid-resistant resin, and the liquid suction port is connected to a deformed portion generated in the base plate of the 60-liter inner bag composite container at the front end portion near the liquid suction port due to the pressure in the container for discharging the chemical liquid. It has the weight which orientates.

  According to the 60 liter inner bag composite container according to the first aspect of the present invention, since the storage amount is 60 liters, the storage amount is increased compared to the conventional 20 liters, and the complicated work relating to the discharge of the chemical solution is reduced. be able to.

  Further, in the 60-liter inner bag composite container as described above, a holding screw and a cap screw were formed at the liquid inlet / outlet portion of the inner container. Therefore, the liquid inlet / outlet portion of the interior container protruding from the opening for the mouth portion of the top plate can be held on the top plate in a protruding state by the hanger screwed to the holding screw. Therefore, it is possible to easily attach and detach the cap that is screwed to the cap screw, and it is possible to improve workability related to the chemical solution discharging operation.

  In addition, a recess was formed around the mouth opening in the top plate. Therefore, even when the inside of the container is pressurized for discharging the chemical solution, it is possible to prevent or suppress the swelling of the top plate. On the other hand, the ground plate is not devised for pressure resistance. Thus, due to the synergistic effect with the depression, the main plate, particularly the central portion of the main plate, can bulge to the outside of the container by the pressurization. As a result, it is possible to collect the remaining liquid in the swelled deformed portion just before the end of the discharge of the chemical liquid, and to efficiently discharge the chemical liquid and to reduce the amount of the residual liquid.

  Moreover, it can have chemical-solution resistance and a high cleanliness by shape | molding an interior container with a high-density polyethylene resin. The chemical solution is a chemical solution used in at least one of the semiconductor field and the liquid crystal field, and is blow-molded under quality control corresponding to the chemical liquid. Therefore, the interior container has high cleanliness and is suitable for handling chemicals used in at least one of the semiconductor field and the liquid crystal field. Furthermore, the exterior container can also be omitted by forming it with an electrogalvanized steel sheet. Therefore, it is possible to reduce the possibility of foreign matter mixing into the container and achieve high cleanliness not only in the interior container but also in the entire container.

  Furthermore, according to the chemical | medical solution discharge tube in the 2nd aspect of this invention, it can mount | wear with the 60 liter inner bag composite container of the said 1st aspect, and has a weight in the front-end | tip part of the said chemical | medical solution discharge tube. Therefore, it is possible to orient the liquid suction port of the chemical solution discharge tube to the deformed portion of the base plate of the outer container, and in combination with the above-described depression formation of the top plate, more efficient chemical solution discharge is possible, and the remaining liquid amount It is also possible to reduce this.

It is a figure including the partial cross section which shows the structure of the 60 liter inner bag composite container in one Embodiment of this invention. It is a top view of the 60 liter inner bag composite container shown in FIG. It is a perspective view of the 60 liter inner bag composite container shown in FIG. It is sectional drawing regarding the liquid inlet / outlet part of the interior container of the 60 liter inner bag composite container shown in FIG. It is a figure which shows the remaining liquid state when a 60 liter inner bag composite container shown in FIG. 1 is turned upside down and a chemical | medical solution is discharged | emitted. It is a figure which shows an example of the modification of the interior container with which the 60 liter inner bag composite container shown in FIG. 1 is equipped, (A) is a top view, (B) is a side view by arrow B, (C) is arrow C FIG. It is a figure which shows the other modification of the interior container with which the 60 liter inner bag composite container shown in FIG. 1 is equipped, (A) is a top view, (B) is a side view. It is a figure which shows another modification of the interior container with which the 60 liter inner bag composite container shown in FIG. 1 is equipped, (A) is a top view, (B) is a side view. It is a figure which shows the chemical | medical solution discharge tube and dispenser mechanism which can be mounted | worn with the 60 liter inner bag composite container shown in FIG. It is a perspective view which shows the inclination stand applicable to the 60 liter inner bag composite container shown in FIG. It is a figure which shows the structure of the conventional 20 liter inner bag composite container.

  A 60-liter inner bag composite container according to an embodiment of the present invention will be described below with reference to the drawings. In each figure, the same or similar components are denoted by the same reference numerals.

  1 to 4 show a configuration of a 60-liter inner bag composite container 100 according to this embodiment. Similarly to the conventional 20-liter inner bag composite container, the 60-liter inner bag composite container 100 includes a resin-made inner container 110 and a steel outer container 120 that houses the inner container 110.

  The interior container 110 has a main body portion 111 made of high-density polyethylene resin and blow-molded into a bag shape, and has a capacity of 60 liters. A liquid inlet / outlet portion 112 is provided on the top surface 111a of the main body portion 111 for entering and exiting a chemical solution. Is formed integrally with the main body 111. The liquid inlet / outlet portion 112 may be molded simultaneously with the blow molding of the main body 111, or may be separately molded and attached to the main body 111 by fusion or the like. Further, on the outer peripheral surface of the liquid inlet / outlet portion 112, as shown in FIG. 4, a holding screw 1121 and a cap screw 1122 are concentrically arranged in two stages along the axial direction 112a of the liquid inlet / outlet portion 112. Molded in male thread shape.

The holding screw 1121 is a male screw formed close to the top surface 111a, has a diameter that passes through the opening 123a for the mouth formed in the top plate 123 of the outer container 120, and covers the liquid inlet / outlet portion 112. It is a screw for screwing the hanger 113 held on the top plate 123 of the container 120.
The cap screw 1122 is a male screw having a smaller diameter than the above-described holding screw 1121, is located above the holding screw 1121 in the axial direction 112 a, and closes the mouth portion 112 b of the liquid inlet / outlet portion 112. It is a screw for screwing together.

  The chemical solution stored in the interior container 110 is a chemical solution that requires high cleanliness for handling, including during storage, and corresponds to, for example, a chemical solution used in at least one of the semiconductor field and the liquid crystal field. As described above, the chemical solution in the semiconductor field is, for example, a CMP slurry, a photoresist, a developer, an etching solution, a cleaning solution, and the like, and in the liquid crystal field, a photoresist, a color resist, a color filter material, and the like.

Since such a chemical solution is stored, the interior container 110 is required to have high cleanliness. Therefore, as described above, the interior container 110 is made of high-density polyethylene resin according to the specifications for the chemical solution, and is subject to high quality control. It is made with. Immediately after the production, an inner plug 114 is applied to the mouth portion 112b of the liquid inlet / outlet portion 112 to seal the inside, and a cap 115 is screwed into the cap screw 1122 to seal the inner plug 114.
As will be described later, when discharging the stored chemical solution, the cap 115 and the inner plug 114 are removed, and the plug body 201 constituting the dispenser mechanism 200 is screwed into the cap screw 1122 as shown in FIG. Is done.

  The exterior container 120 of the 60-liter inner bag composite container 100 includes a body 121 made of a cylindrical steel plate, a ground plate 122 and a top plate 123 made of a steel plate. As described above, since the contents of the 60-liter inner bag composite container 100 are chemical solutions that require high cleanliness for handling, the exterior container 120 can also be manufactured with high cleanliness compared to general-purpose products. Required. Therefore, the body 121, the base plate 122, and the top plate 123 of the outer container 120 are made of electrogalvanized steel plates, and the outer surface coating can be omitted. As a result, the possibility of foreign matter mixing in the container is reduced, and high cleanliness is achieved not only in the interior container 110 but also in the entire 60-liter inner bag composite container 100.

  The body 121 has the same diameter at both ends. The storage unit 120a is formed by winding the body 121 and the base plate 122, and the interior container 110 is loaded in the storage unit 120a. Note that the size of the storage portion 120a is a size suitable for the interior container 110 having a storage capacity of 60 liters, and the interior container 110 is stored along and in contact with the inner surface of the storage portion 120a. After the storage, the top plate 123 having the opening 123a for the mouth having a size through which the holding screw 1121 of the liquid inlet / outlet portion 112 of the interior container 110 can pass is wound around the body 121. At this time, the liquid inlet / outlet part 112 protrudes from the opening 123a for the mouth of the top plate 123 to the outside of the container, and the hanger 113 is screwed to the holding screw 1121 so that the liquid inlet / outlet part 112 is connected to the hanger 113. The top plate 123 is held.

  The hanger 113 is made of, for example, a plate made of resin or metal, and has a through hole in which an internal thread 113a that engages with the holding screw 1121 of the liquid inlet / outlet portion 112 is formed on the inner peripheral surface. It has the outer peripheral part 113b of the magnitude | size exceeding the opening 123a for mouth parts. Therefore, the outer peripheral portion 113b of the hanger 113 is attached to the top by screwing the female screw 113a of the hanger 113 from the outside of the container to the holding screw 1121 protruding from the opening 123a for the mouth of the top plate 123 to the outside of the container. The hanger 113 abuts on the plate 123 and holds the liquid inlet / outlet portion 112 of the inner container 110 on the top plate 123 of the outer container 120. In addition, the shape of the hanger 113 is not limited to the shape shown in figure.

  Further, as shown more clearly in FIGS. 2 and 3, the top plate 123 has a recess 123b in which the top plate 123 is uniformly recessed from the outside of the container to the inside around the opening 123a for the mouth. Is formed. Moreover, although the hollow 123b and the top plate 123 are connected by the slope 123d, it is not limited to this, For example, circular arc shape etc. may be sufficient. Such a recess 123b is formed from the vicinity of the mouth opening 123a to a region 123c beyond the center of the top plate 123. This is because the central portion of the top plate 123 is most easily deformed by the in-container pressurization described below. Further, in the present embodiment, as shown in the drawing, the recess 123b has a substantially oval shape in which the region 123c portion is narrower than the liquid inlet / outlet portion 112 portion, but is not limited to this shape. The region 123c may also have an oval shape having the same size as the liquid inlet / outlet portion 112.

  Similarly to the conventional inner bag composite container, also in the 60 liter inner bag composite container 100 in the present embodiment, the chemical liquid as the contained material is discharged by pressurization by injecting an inert gas into the container 100. Can do. The depression 123b is for preventing or suppressing the bulging deformation of the top plate 123 during the pressurization, and also causes the deformation portion 129 to be generated in the ground plate 122 as described below.

  On the other hand, as shown in FIG. 1, the ground plate 122 is not flattened like a recess 123b and remains flat. Moreover, the ground plate 122 and the top plate 123 use steel plates having the same thickness and the same material. Therefore, at the time of pressurization, due to the difficulty of deformation of the top plate 123 by the recess 123b, the entire base plate 122, particularly the central portion of the base plate 122, may swell further to the outside of the container than when the recess 123b is not provided. it can. Such a bulging portion is referred to as a deformed portion 129 (FIG. 9) for explanation. As a result, the remaining liquid can be collected in the deformed portion 129 of the main plate 122 just before the end of the discharge of the chemical liquid. Therefore, it is possible to efficiently discharge the chemical liquid and to reduce the amount of residual liquid. From this point of view, it can be said that the recess 123b is for forming the deformed portion 129 on the ground plate 122, and further for reducing the remaining liquid amount.

  In this embodiment, by providing the recess 123b as described above, the top plate 123 is prevented from being deformed and the base plate 122 is promoted to be deformed. However, in order to achieve these purposes, it is not limited to the recess 123b. For example, a means such as providing a rib on the top plate 123 may be applied.

  Further, as clearly shown in FIGS. 1 and 3, the top plate 123 is positioned one step lower than the upper end 101 of the 60 liter inner bag composite container 100, and the mounting position of the hanger 113 is further provided by the recess 123b. Is one step lower. Therefore, by providing the recess 123b, as clearly shown in FIG. 1, in the state where the cap 115 is screwed into the cap screw 1122 of the liquid inlet / outlet portion 112, the upper surface of the cap 115 is placed on the 60 liter inner bag composite container 100. It can be located below the upper end 101. Thereby, for example, even when the 60-liter inner bag composite container 100 is stacked, there is an effect that damage to the cap 115 can be prevented.

  Further, as shown in FIGS. 2 and 3, at least two handles 124 for handling containers are attached to the outer surface of the top plate 123. FIG. 2 illustrates the case where the handles 124 are provided at two locations, and FIG. 3 illustrates the case where the handles 124 are provided at three locations.

  In addition, as shown in FIG. 1, on the surface of the fuselage 121, two zones on the top plate side and the base plate side are provided with an annular zone 121 a for increasing the rigidity of the fuselage 121 and preventing and suppressing the deformation of the fuselage 121. It is formed along the circumferential direction of the body 121.

In this way, the 60-liter inner bag composite container 100 in which the resin-made inner container 110 is housed in the steel outer container 120 is produced.
With respect to such a 60-liter inner bag composite container 100, the chemical solution is injected into the interior container 110 through the liquid inlet / outlet portion 112 protruding from the top plate 123. After the injection, an inner plug 114 is applied to the mouth portion 112b of the liquid inlet / outlet portion 112, and the cap 115 is screwed into the cap screw 1122, thereby sealing the chemical solution.

  By using the 60-liter inner bag composite container 100 configured in this manner, the chemical solution discharge frequency is reduced due to the increase in the storage capacity with respect to the conventional 20 liters, and the complicated work can be reduced.

  From the viewpoint of weight and workability, the discharge of the chemical solution stored in the 60-liter inner bag composite container 100 is usually performed by pressurizing the inside of the container, but when the remaining amount of the chemical solution becomes extremely small, etc. It is also conceivable that the container 100 is inverted with the liquid inlet / outlet port 112 down. However, even in such a case, as shown in FIG. 5, the chemical solution 108 tends to remain on the shoulder portion of the interior container 110 in the vicinity of the liquid inlet / outlet portion 112.

  In order to eliminate such residual chemical as much as possible, the interior container may have the following configuration. That is, like the interior container 110-1 shown in FIG. 6, a recess 130 that is recessed from the outside to the inside of the interior container 110-1 is provided on the shoulder of the interior container 110-1 in the vicinity of the liquid inlet / outlet portion 112. . In FIG. 6, (A) is a plan view of the interior container 110-1, (B) is a side view seen from the direction of arrow B in (A), and (C) is seen from the direction of arrow C in (A). It is a side view. Moreover, 131 and 132 are numbered to the slope formed in the top | upper surface 111a of the interior container 110-1.

  The recesses 130 are shoulder portions of the top surface 111 a and are provided on both sides of a line segment passing through the center of the top surface 111 a and the center of the liquid inlet / outlet portion 112. Such a recess 130 can be easily formed by blow molding when molding the interior container 110-1.

  By providing such a recess 130, when the chemical liquid is discharged by tilting the container, the chemical liquid does not stay and is discharged from the liquid inlet / outlet portion 112 because the concave portion 130 is formed in the portion where the chemical liquid stayed. It is possible to reduce the amount of residual liquid.

  The angle of the slope 132 connecting the top surface 111a and the recess 130 is about 45 degrees. When the 60-liter inner bag composite container 100 is dropped or due to the liquid pressure in the container, the connecting portion between the top surface 111a and the recess 130 is weak in strength. Can be relaxed. Each of the upper end and the lower end of the slope 132 is preferably formed in an arc shape. Due to the formation of the arc shape, the strength of the connecting portion between the top surface 111a and the recess 130 is increased, and damage to the interior container 110 can be prevented or reduced.

  In the planar shape, the corners 130a, 130b, and 130c of the recess 130 are preferably formed in an arc shape. By comprising in this way, the intensity | strength of the connection part of the top | upper surface 111a and the recessed part 130 increases further.

  Although not shown, it is preferable that a spacer is provided in a gap portion between the exterior container 120 and the recess 130 in the interior container 110-1. For example, a polystyrene foam can be used as the spacer. If the concave portion 130 is provided, there is a concern that the strength of the interior container 110-1 may be lowered, but the inner container 110-1 is reinforced by interposing a spacer in the gap portion.

  Further, as a modification of the recess 130, a recess 135 shown in FIG. 7 can be configured. 7A is a plan view of the interior container 110-2, and FIG. 7B is a side view. The concave portion 135 is formed by chamfering the shoulder portion (dotted line portion) of the interior container 110-2 in the vicinity of the liquid inlet / outlet portion 112 to form a slope. The remaining liquid amount can also be reduced by the recess 135. Further, not only on the slope, but also by making the arc portion in the shoulder portion larger than the conventional one, there is a considerable effect.

  Furthermore, a configuration shown in FIG. 8 can be adopted as a modification of the recess 130. 8A is a plan view of the interior container 110-3, and FIG. 8B is a side view. In the interior container 110-3, the liquid inlet / outlet portion 112 is brought close to the side wall side of the inner container 110-3, and the shoulder portion on the extension line of the line passing through the center of the top surface 111a and the center of the liquid inlet / outlet portion 112 is replaced with a conventional one. It is configured to be larger than the arc R of the shoulder portion (dotted line) so that the chemical solution does not stay in the shoulder portion when the 60-liter inner bag composite container 100 is tilted to discharge the chemical solution. Even in such a configuration, the amount of residual liquid can be reduced. Instead of increasing the arc R, this portion may be a slope. In the case of this example, since the liquid inlet / outlet part 112 is brought closer to the side wall side of the inner container 110-3, the shape of the outer container 120 needs to be changed accordingly.

  Next, the chemical solution discharge tube that can be attached to the liquid inlet / outlet portion 112 of the 60-liter inner bag composite container 100 configured as described above and discharges the chemical solution stored in the interior container 110 to the outside of the container is illustrated in FIG. This will be described below with reference to FIG.

  The chemical solution discharge tube 150 is made of a flexible and chemical-resistant resin, and is formed from, for example, Teflon (registered trademark), and has a diameter of about 8 mm, for example, and the length of the inside of the container from the liquid inlet / outlet portion 112 with respect to the main plate. The bottom 111b of the interior container 110 in contact with 122 is in contact with the liquid suction port 151 located at the tip, and the liquid suction port 151 is positioned to the center of the base plate 122 in the 60-liter inner bag composite container 100. Have Further, as illustrated in the present embodiment, the liquid suction port 151 has a cross section that obliquely intersects the entire axial direction of the chemical liquid discharge tube 150 with respect to the axial direction of the chemical liquid discharge tube 150. Note that the liquid suction port 151 may be formed with only a part of the chemical liquid discharge tube 150 in the diametrical direction or a cross section in which a plurality of portions are cut obliquely.

  Further, the chemical liquid discharge tube 150 absorbs liquid by gravity action to the deformed portion 129 of the base plate 122 in which the base plate 122 swells to the outside of the container due to the pressurization in the container for discharging the chemical solution at the tip portion 152 near the liquid suction port 151. A weight 153 for orienting the mouth 151 is provided. The weight 153 is made of a metal material that does not chemically react with the chemical solution contained in the container. For example, a square or circular plate material is formed with a through hole into which the chemical solution discharge tube 150 can be fitted. And is held by the distal end portion 152 by the elasticity of the chemical solution discharge tube 150. Further, the shape and mounting position of the weight 153 are appropriately selected so that the weight 153 does not result in the liquid suction port 151 being separated from the bottom 111b of the interior container 110 by the thickness of the weight 153. As an example, in the present embodiment, the weight 153 has a cylindrical shape, and is attached to the vicinity of the liquid suction port 151 by inserting the chemical liquid discharge tube 150 into the inner diameter portion. Further, the weight of the weight 153 is preferably about 55 to 65 g, and is 60 g in the present embodiment.

  The other end of the chemical solution discharge tube 150 opposite to the tip portion 152 is connected to a dispenser mechanism 200 as shown in FIG. 9, for example. The dispenser mechanism 200 is a mechanism for discharging the chemical solution stored in the interior container 110 to the outside of the container. In FIG. 9, an inert gas such as nitrogen gas is injected into the 60-liter inner bag composite container 100 and added. The structure of the pressurization system which extrudes a chemical | medical solution by pressing is shown. It is also possible to adopt a pump-up method in which the chemical solution is sucked up by a suction device such as a pump.

  The pressurization-type dispenser mechanism 200 is roughly divided into a cylindrical plug body 201, a gas supply device 202 that supplies pressurized inert gas into the interior container 110, and the above-described chemical solution discharge tube 150. .

  The plug body 201 is, for example, a resin plug that is attached to the liquid inlet / outlet portion 112 after the cap 115 is removed, and includes a coupling ring 201r, a plug shell 201s, and a seal ring 2012. The coupling ring 201r is a cylindrical member having one end opened in a circular shape, and a female thread 2011 that engages with a cap screw 1122 formed in the liquid inlet / outlet portion 112 on the inner peripheral surface of the opening. Is forming. Therefore, the coupling ring 201r of the plug main body 201 can be screwed into the cap screw 1122 of the liquid inlet / outlet portion 112, and a streak knurl is formed on the outer periphery of the coupling ring 201r. It can be securely screwed to the entrance / exit part 112.

  The other end of the coupling ring 201r is also opened in a circular shape, and the plug shell 201s is fitted into this opening so as to be rotatable with respect to the coupling ring 201r. That is, the plug shell 201s is a disk-shaped member having a flange, and is inserted from an opening on one end side of the coupling ring 201r. The flange abuts on the coupling ring 201r, and the other of the coupling ring 201r. It is inserted into the opening at the end. Further, by attaching the seal ring 2012 to the coupling ring 201r and screwing the coupling ring 201r into the cap screw 1122 of the liquid inlet / outlet portion 112 as described above, the seal ring 2012 is connected to the liquid inlet / outlet portion 112. The opening 112b is sealed, and the flange of the plug shell 201s is sandwiched between the seal ring 2012 and the coupling ring 201r. Thereby, the seal ring 2012 also seals ventilation at the boundary between the coupling ring 201r and the plug shell 201s.

  The plug shell 201 s is screwed with a first joint 203 made of synthetic resin for detachably fixing the other end of the chemical solution discharge tube 150 and a second joint 204 for connecting the gas supply device 202.

  As the first joint 203, a commercially available straight type holder can be used, and the chemical solution discharge tube 150 can be slidably held along the axial direction of the plug main body 201 and can be fixed by tightening a nut. . Therefore, the first joint 203 can be used to adjust the length and position so that the liquid suction port 151 of the chemical liquid discharge tube 150 is located up to the center of the main plate 122 as described above.

  The second joint 204 is an L-shaped (elbow-shaped) synthetic resin joint that is connected to the opening 2013 in the coupling ring 201r of the plug body 201, and a commercially available elbow-shaped quick joint can be used.

  By connecting the hose connected to the gas supply device 202 to the second joint 204, the gas supply device 202 can supply pressurized inert gas into the interior of the interior container 110.

  By using the dispenser mechanism 200 configured as described above, the interior of the interior container 110 is pressurized to a range of, for example, about 100 Kpa to about 150 Kpa by the gas supply device 202 and accommodated in the interior container 110. The chemical liquid can be pushed out of the container through the chemical liquid discharge tube 150 and discharged.

Furthermore, when discharging a chemical | medical solution to the exterior of a container using the dispenser mechanism 200, the inclined base as demonstrated below which mounts and inclines the 60 liter inner bag composite container 100 can also be used.
That is, the tilting table 250 shown in FIG. 10 includes a main body 251 and a pair of fall prevention poles 252. The main body 251 is formed of a metal plate such as a stainless steel plate, and forms an inclined surface 251a inclined at about 10 to 15 degrees with respect to a floor surface that is a horizontal surface. The 60-liter inner bag composite container 100 is placed on the slope 251a such that the liquid inlet / outlet portion 112 of the 60-liter inner bag composite container 100 is oriented to the lower side of the slope 251a. Here, if the inclination angle exceeds 15 degrees, the possibility of liquid spillage increases, which is not preferable.
The pair of fall prevention poles 252 are made of a metal round bar such as stainless steel and are erected on the lower side of the slope 251a.

  By using the tilting table 250 as described above, the liquid inlet / outlet part 112 is oriented to the lower side to incline the 60-liter inner bag composite container 100, so that the chemical liquid in the interior container 110 is discharged to the liquid inlet / outlet part 112 side when the chemical liquid is discharged. The amount of the remaining liquid can be reduced by the interaction with the chemical liquid discharge tube 150 provided with the weight 153 as described above.

  The present invention is applicable to an inner bag composite container having a capacity of 60 liters in which an inner container made of resin is provided in an outer container made of steel, and a chemical solution discharge tube for the 60 liter inner bag composite container.

100 ... 60 liter inner bag composite container,
110 ... Interior container, 111a ... Top surface, 112 ... Liquid inlet / outlet part, 112b ... Mouth part,
113 ... hangers, 115 ... caps,
120 ... Exterior container, 120a ... Storage part, 121 ... Body, 122 ... Base plate,
123: Top plate, 123a: Opening for mouth, 123b: Recess,
150 ... Chemical solution discharge tube, 151 ... Liquid suction port, 153 ... Weight,
1121... Holding screw, 1122... Cap screw.

Claims (5)

An interior container (110) made of resin, containing a chemical solution that requires high cleanliness for handling, the capacity is 60 liters, and a liquid inlet / outlet portion (112) is provided on the top surface (111a);
It is made of steel and accommodates the interior container along the inner surface of a storage part (120a) formed by winding a base plate (122) around a cylindrical body (121), and further allows the liquid inlet / outlet part to protrude. An outer container (120) formed by winding a top plate (123) on which a mouth opening (123a) is formed around the body;
A 60-liter inner bag composite container.   The liquid inlet / outlet portion of the inner container is formed by concentrically holding a holding screw (1121) and a cap screw (1122) along the axial direction (112a) of the liquid inlet / outlet portion on the outer peripheral surface of the liquid inlet / outlet portion. The holding screw is formed in the vicinity of the top surface, has a diameter that passes through the opening for the mouth portion of the outer container, and holds the liquid inlet / outlet portion on the top plate. A screw for screwing on the hanger (113), the cap screw being formed away from the top surface and having a smaller diameter than the holding screw, and the mouth portion (112b) of the liquid inlet / outlet portion The 60-liter inner bag composite container according to claim 1, which is a screw for screwing a cap (115) for closing the cap.   The 60 liter according to claim 1 or 2, wherein the top plate has a recess (123b) formed around the mouth opening from the mouth opening to a region (123c) beyond the center of the top plate. Inner bag composite container.   The outer container is formed of an electrogalvanized steel sheet that can be omitted from painting, and the chemical solution is a chemical solution used in at least one of the semiconductor field and the liquid crystal field. The 60-liter inner bag composite container according to any one of claims 1 to 3, which is made of a density polyethylene resin and blow-molded under high quality control. 5. The chemical liquid (108) that can be attached to the liquid inlet / outlet part (112) of the internal container (110) provided in the 60-liter inner bag composite container according to claim 1, A chemical solution discharge tube (150) for the 60 liter inner bag composite container,
It is made of a flexible and chemical-resistant resin, and the base plate (122) of the 60-liter inner bag composite container is attached to the tip (152) in the vicinity of the liquid suction port (151) along with the pressurization in the container for discharging the chemical liquid. A drug solution discharge tube having a weight (153) for orienting the liquid suction port to the deformed portion (129) generated in the step.

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