Pressure container

Abstract

To shorten the time until taking out a work when a cooling air is introduced into a pressure container.SOLUTION: A pressure container comprises: a can body 34 arranged in a horizontal direction; and an inner can 40 arranged inside the can body 34 to store a work-piece. The inner can 40 includes: a storage can 42 for storing the work-piece; and a partitioning can 46 provided on a periphery of the storage can 42 with a gap 44 of a predefined interval therebetween. The storage can 42 includes: an air supply pipe 62 for introducing cooling air from an outside of the can body 34; and a release hole 63 for releasing the cooling air introduced into an inside of the storage can 42 to the gap 44. The partitioning can 46 includes an exhaust pipe 68 for exhausting the cooling air in the gap 44.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a pressure vessel that performs heating and pressurization processes on stored workpieces.

Background Art

[0002] Pressure vessels are used to heat and pressurize various workpieces. For example, they are used in sterilization devices that heat and pressurize medical equipment, environmental test devices that conduct environmental tests under heating and pressurization, and for reacting predetermined raw materials.

[0003] After the heating and pressurization process, the pressure vessel is at a high temperature, so the workpiece cannot be taken out immediately and has to wait for several hours until it reaches a safe temperature. Therefore, in a pressure vessel as disclosed in Patent Document 1 (Japanese Utility Model Laid-Open No. 63-144235), a configuration is disclosed in which a cooling air supply pipe is provided inside the container body, and cooling air is introduced from the outside into the container body to cool the inside of the pressure vessel.

[0004] Also, Patent Document 2 (Japanese Utility Model Laid-Open No. 60-95935) discloses a configuration in which a product storage chamber is provided at one end side of a horizontally placed pressure vessel, and a fan for heating or cooling the air inside the pressure vessel body is provided at the other end side.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] In the conventional pressure vessels described in Patent Document 1 and Patent Document 2, while the can body constituting the pressure vessel is in a hot state, the cooling air circulates in contact with the can body. Therefore, since the cooling air is also heated by the hot can body, there is a problem that it takes a long time for cooling.

[0007] Originally, the reason for cooling the inside of the pressure vessel is to safely take out the work. Therefore, the inventors of the present invention thought that if only the work can be cooled instead of cooling the entire inside of the can body like a conventional pressure vessel, the time until the work can be taken out can be shortened, and the present invention was conceived.

[0008] Therefore, the present invention has been made to solve the above problems, and an object thereof is to provide a pressure vessel capable of shortening the time until the work can be taken out when introducing cooling air.

Means for Solving the Problems

[0009] According to the pressure vessel of the present invention, it includes a can body arranged horizontally so that the opening door faces laterally, and an inner can arranged inside the can body for storing a work. The inner can has a storage can for storing the work and a partition can provided with a gap at a predetermined interval around the storage can. The storage can is provided with an air supply pipe for introducing cooling air from the outside of the can body, and a relief hole for allowing the cooling air introduced into the storage can to escape into the gap between the storage can and the partition can. The partition can is provided with an exhaust pipe for exhausting the cooling air in the gap. By adopting this configuration, the cooling air is directly introduced into the storage can in which the work is stored without touching the can body, and only the work can be cooled. Then, since the cooling air is introduced from the storage can through the escape hole into the gap between the storage can and the partition can, the heat influence of the can body is blocked by the cooling air introduced into the gap. For this reason, only the work can be cooled without being affected by the heat of the can body, so the cooling time for the work can be shortened, and it is also possible to take out the cooled work even when the can body is in a hot state.

[0010] Further, the air supply pipe may be provided so as to communicate with the outside of the can body at the upper part of the storage can, and the exhaust pipe may be provided so as to communicate with the outside of the can body at the upper part of the partition can. According to this configuration, the cooling air passes through the inside of the storage can from the upper part of the storage can, and is exhausted from the upper part of the partition can through the gap between the storage can and the partition can, so it circulates in the vertical direction in the inner can. For this reason, even when the opening door is opened, the cooling air can be prevented from jetting to the outside, ensuring safety, and the work can be cooled even after the opening door is opened.

[0011] Further, a flat baffle plate having a plurality of holes formed below the upper surface of the storage can may be provided, and the lower surface of the storage can may be constituted by a flat member having a plurality of holes formed therein. According to this configuration, the cooling air introduced from the air supply pipe can be jetted toward the work in a stable state from the baffle plate. Also, since the lower surface is flat, the work can be placed in a stable state, and the cooling air can be jetted into the gap between the storage can and the partition can through the plurality of holes formed in the lower surface as escape holes.

[0012] Further, the air supply pipe and the exhaust pipe may be provided at a predetermined interval in the front-rear direction with the side where the opening door of the can body is provided as the front. According to this configuration, the cooling air can be circulated in the front-rear direction inside the inner can, and the cooling state of the work stored in the storage can can be made uniform in the front-rear direction, and it is also easy to manufacture during the production of the pressure vessel.

[0013] Further, the air supply pipe may be provided on the front side, and the exhaust pipe may be provided on the rear side. According to this configuration, since the cooling air moves from the front to the rear inside the inner can, it is possible to prevent the cooling air from jetting to the outside even when the opening door is opened.

Effect of the Invention

[0014] According to the present invention, the time until the work is taken out after executing the heating and pressurization process can be shortened.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Embodiment for Carrying Out the Invention

[0016] Hereinafter, embodiments of the pressure vessel of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic side view showing the internal configuration of the pressure vessel as viewed from the side, and FIG. 2 is a schematic front view of the pressure vessel as viewed from the front. In the following description, the side where the opening door is provided in FIG. 1 is defined as the front, and the direction opposite to the side where the opening door is provided is defined as the rear.

[0017] The pressure vessel 30 includes a bottomed cylindrical can body 34 and an opening door 36 for closing the opening 35 of the can body 34. The pressure vessel 30 is arranged horizontally so that the opening door 36 faces sideways. An inner can 40 is arranged inside the can body 34. The inner can 40 has a double can structure composed of a storage can 42 for storing a workpiece (not shown) and a partition can 46 arranged around the storage can 42 with a gap 44 at a predetermined interval.

[0018] A fan 50 is provided at the rear end of the inner can 40. The fan 50 is provided for sending hot air into the inner can 40 and is not used during cooling. The rotation shaft 51 of the fan 50 extends to the rear end of the can body 34 and is connected by a motor 52 and a magnetic coupling 55 provided outside the can body 34. A heater (not shown) is provided between the rear end of the inner can 40 and the rear end of the can body 34, and the air inside the can is heated here.

[0019] The storage can 42 constituting the inner can 40 is square when viewed from the front and is generally rectangular parallelepiped-shaped. The front side of the storage can 42 is not provided with a wall surface or a door and is open.

[0020] The upper surface 42a of the storage can 42 is formed in a flat shape, and a flat baffle plate 59 is provided below the upper surface 42a (on the storage space side). A plurality of holes 60 are formed in the baffle plate 59. These holes 60 are introduction holes for introducing cooling air into the storage can 42. Specifically, the baffle plate 59 is made of punching metal or the like.

[0021] Also, the lower surface 42b of the storage can 42 is formed in a flat shape, and a plurality of holes 63 are formed. The workpiece is placed on this lower surface 42b. The holes 63 in the lower surface 42b are escape holes for discharging the cooling air from the storage can 42. Specifically, the lower surface of the storage can 42 is made of punching metal or the like.

[0022] An air supply pipe 62 connected to the upper surface 42a is provided at the upper part of the storage can 42. The air supply pipe 62 extends to the outside of the can body 34. An opening and closing valve 64 is provided outside the can body 34 of the air supply pipe 62, and the tip of the opening and closing valve 64 is connected to a cooling air supply pipe 66. The cooling air supply pipe 66 is connected to equipment that supplies air, such as an air compressor that supplies compressed air and a spot cooler that supplies cold air.

[0023] An exhaust pipe 68 is provided above the partition can 46 and behind the air supply pipe 62. The exhaust pipe 68 extends to the outside of the can body 34. An opening and closing valve 70 is provided outside the can body 34 of the exhaust pipe 68, and the tip of the opening and closing valve 70 is connected to an exhaust pipe 72 that extends to a location where heat can be exhausted.

[0024] The operation of the pressure vessel 30 of the present embodiment will be described below. First, the operator opens the opening door 36 and stores the workpiece in the storage can 42. During the implementation of the heating and pressurization process, the opening and closing valve 64 and the opening and closing valve 70 are kept closed. During the implementation of the heating and pressurization process, the heated air heated by the heater is introduced into the storage can 42 by the fan 50, and the heated air passes through the inside of the storage can 42 from the rear to the front. The heated air escapes from the opening in front of the storage can 42 and circulates so as to move to the rear of the storage can 42 through the gap between the partition can 46 and the can body 34.

[0025] At the end of the heating and pressurization process, the operator or a control device (not shown) turns off the heater and stops the fan 50. The operator or a control device (not shown) opens the opening and closing valve 64 and the opening and closing valve 70, drives the cooling air supply equipment, and introduces the cooling air into the storage can 42.

[0026] The cooling air is introduced into the upper part of the storage can 42 and ejected from a plurality of holes 60 formed in the baffle plate 59 toward the upper part of the workpiece. At this time, since the baffle plate 59 is formed in a planar shape, it can be ejected toward the workpiece in a stable state.

[0027] The cooling air introduced from the upper part of the storage can 42 is ejected from a plurality of holes 63 in the lower surface 42b of the storage can 42 into the gap 44 between the storage can 42 and the partition can 46. The cooling air introduced into the gap 44 is exhausted to the outside of the can body 34 from the exhaust pipe 68 provided at the upper part of the partition can 46. In this way, the cooling air flows downward in the storage can 42, rises through the gap 44, and is exhausted from the exhaust pipe 68. That is, since the cooling air circulates in the vertical direction, even when the opening door 36 is opened, the cooling air can be prevented from jetting to the outside, ensuring safety, and the work can be cooled even after the opening door 36 is opened. In addition, since the cooling air is introduced into the gap 44 between the storage can 42 and the partition can 46, the heat influence of the can body 34 is blocked by the cooling air introduced into the gap 44. Therefore, only the work can be cooled without being affected by the heat of the can body 34, and the cooling time for the work can be shortened. And it is also possible to take out the cooled work even when the temperature of the can body 34 is still high.

[0028] In addition, since the exhaust pipe 68 is arranged at a predetermined interval behind the air supply pipe 62, the cooling air can be circulated in the front-rear direction in the inner can 40, and the cooling state of the work stored in the storage can 42 can be made uniform in the front-rear direction. Furthermore, there is an advantage that it is easier to manufacture during the manufacture of the pressure vessel 30 than arranging the air supply pipe 62 and the exhaust pipe 68 side by side in the lateral direction.

[0029] Note that the shape of the storage can 42 described above was a rectangular shape when viewed from the front and a rectangular parallelepiped shape with an opening at the front as a whole. However, the side surface of the storage can 42 is not limited to a planar shape and may be formed in a curved surface shape such as an arc shape.

Explanation of Reference Numerals

[0030] 30 Pressure vessel 34 Can body 35 Opening 36 Opening door 40 Inner can 42 Storage can 42a Upper surface 42b Lower surface 44 Gap 46 Partition can 50 Fan 51 Rotating shaft 52 Motor 55 Magnetic coupling 59 Baffle plate 60 Hole 62 Air supply pipe 63 Hole 64 On-off valve 66 Cooling air supply pipe 68 Exhaust pipe 70 On-off valve 72 Exhaust pipe

Claims

1. A can body arranged horizontally so that the opening door faces horizontally, and an inner can arranged inside the can body for storing a workpiece, The inner can has a storage can for storing a workpiece and a partition can provided with a gap at a predetermined interval around the storage can, The storage can is provided with an air supply pipe for introducing cooling air from the outside of the can body and a relief hole for allowing the cooling air introduced into the storage can to escape into the gap between the storage can and the partition can, The partition can is provided with an exhaust pipe for exhausting the cooling air in the gap, and the pressure vessel is characterized by this.

2. The air supply pipe is provided at the upper part of the storage can so as to communicate with the outside of the can body, The exhaust pipe is provided at the upper part of the partition can so as to communicate with the outside of the can body, and the pressure vessel according to claim 1 is characterized by this.

3. A flat baffle plate with a plurality of holes formed below the upper surface of the storage can is provided, The lower surface of the storage can is composed of a flat member with a plurality of holes formed, and the pressure vessel according to claim 1 or claim 2 is characterized by this.

4. The air supply pipe and the exhaust pipe are provided at a predetermined interval in the front-rear direction when the side where the opening door of the can body is provided is taken as the front, and the pressure vessel according to claim 2 is characterized by this.

5. The air supply pipe is provided on the front side, and the exhaust pipe is provided on the rear side, and the pressure vessel according to claim 4 is characterized by this.

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