JP3777400B2 - Pressurized visualization container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pressurized container, and more particularly to a pressurized visualization container that allows observation of the inside of a container pressurized at a low temperature from the outside.
[0002]
[Prior art]
Conventionally, a magic bottle as shown in FIG. 4 is widely used as a pressurized low-temperature visualization container in which an object such as a test specimen is housed in a pressurized low-temperature container and the state of the object can be observed from the outside. .
[0003]
In FIG. 4, such a magic bottle has an inner cylinder 02 made of the same transparent material as the outer cylinder 01 with a vacuum heat insulating space 03 inside the outer cylinder 01 made of transparent glass or reinforced plastic resin (FRP resin). Are arranged concentrically, and both are fixed by a bolt 04 inserted into the upper flange portion 06. The inner cylinder interior 05 is pressurized to a predetermined pressure, and an object such as a test body attached to an upper cover fixed to the upper flange 07 by a bolt 09 is accommodated, and passes through the transparent outer cylinder 01 and the inner cylinder 02. The situation inside the inner cylinder 05 can be observed.
[0004]
[Problems to be solved by the invention]
A magic bottle as a conventional pressure-type visualization container as shown in FIG. 4 has a curved shape of the outer cylinder 01 and the inner cylinder 02 and is a double cylinder. The object can be seen to be curved and the transparency is also lowered, and there is a problem that accurate internal observation cannot be performed.
[0005]
In addition, such a magic bottle has a problem that it is difficult to increase the pressurization pressure inside the inner cylinder from the viewpoint of the material and strength, so that a test under high pressure cannot be performed.
[0006]
An object of the present invention is to provide a pressurized visualization container that makes it possible to accurately observe the inside of a pressurized container and to increase the pressurized pressure.
[0007]
[Means for Solving the Problems]
The present invention solves the problems as described above, and the gist of the present invention is to arrange a bottomed cylindrical inner tank with a space inside the bottomed cylindrical outer tank, The outer tank and the inner tank are fixed at the upper part of both, and a flat observation window made of a transparent body through which the inside of the inner tank can be seen from the outside is provided on the side of the outer tank and the inner tank. The pressurized visualization container is characterized in that a fluid pressurized to a predetermined pressure is accommodated inside the container.
[0008]
In the above means, the outer tank and the inner tank are made of stainless steel, the observation window is made of reinforced plastic resin (FRP resin), and the upper flange of the inner tank is inserted into the inner tank. It is preferable that the support portion of an object such as a device or member be detachable.
[0009]
According to the above means, when observing the state of the object inside the pressurized inner tank from the observation window provided on the side, the observation window is configured in a flat plate shape, so that the object is curved. The inside of the inner cylinder can be observed in a correct state without being visible or being invisible due to reduced transparency.
[0010]
Also, if the observation window is made of reinforced plastic tank material and the outer and inner tanks are made of stainless steel, there is no risk of destruction, and cryogenic fluid can be safely stored inside the inner tank in a visualized state. At the same time, the pressure inside the inner tank can be increased. As a result, the cryogenic fluid can be accommodated inside the inner tank in a state where it can be correctly observed from the outside and at a high pressure.
[0011]
Moreover, since various test equipment, members, and the like can be attached to and detached from the upper flange as necessary, a versatile pressurized visualization container can be obtained.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
[0013]
FIG. 1 is a longitudinal sectional view of a pressurized visualization container according to an embodiment of the present invention. In FIG. 1, 1 is a bottomed cylindrical outer tub, 2 is a bottomed cylindrical inner tub, and a vacuum heat insulating space 11 is formed between the inner and outer tubs 2, 1. The outer tub 1 and the inner tub 2 are made of a stainless steel material, and are fixed by bolts 1c at flanges 1a and 2a provided on the upper portion thereof.
[0014]
An upper flange 2b is provided in the upper opening of the inner tub 2, and various devices or members can be attached to and detached from the upper flange 2b depending on applications. In this embodiment, a pressurized fluid inlet 13 for introducing a cryogenic fluid that is pressurized (usually pressurized to a pressure of about 5 kg / cm ² G) into the inner tank interior 12 to the upper flange 2b. The upper cover 3 to which is attached is detachable by a bolt 2c.
[0015]
5 is an external flange provided in the circumferential direction on the upper part of the inner tub 2 (usually 2 to 4), and the external flange 5 is exhausted from the inner tub 2 depending on the application, Used for drainage or test solution (when liquid is contained in the inner tank 12), pressurizing port and the like.
[0016]
1a is a side flange of the outer tub provided at two left and right sides (one or three or more locations) on the side of the outer tub 1, and 2d is two left and right locations on the side of the inner tub 2 (also this 1 side or 3 places or more) It is a side flange of the provided inner tank. A flat observation window 4a made of a transparent reinforced plastic resin (hereinafter referred to as FRP resin) is detachably attached to the side flange 1a of the outer tub via a retainer 14 by a bolt 16, and A flat observation window 4b made of a transparent FRP resin similar to the above is detachably attached to the side flange 2d by a bolt 17 via a retainer 15.
[0017]
Here, the side flange 1a and the observation window 4a of the outer tank and the side flange 2d and the observation window 4b of the inner tank are the same in the circumferential direction and the longitudinal direction so that the inner tank 12 can be seen through from the outside. They are provided in phase and at the same height.
[0018]
Reference numeral 6 denotes a vacuum pump connection valve for connection to a vacuum pump (not shown) for forming a vacuum in the space 11, and 7 denotes a vacuum gauge (not shown) for measuring the degree of vacuum in the space 11. A vacuum measuring valve 8 for connection is a rupture disk which is a safety device when gas in the space 11 leaks.
[0019]
When the visualization container configured as described above is used, a cryogenic pressurized fluid (in this case, gas) having a pressure of about Kg / cm ² G is introduced into the inner tank 12 from the pressurized fluid supply port 13. The space 11 between the outer tub 1 and the inner tub 2 is in a vacuum state by a vacuum pump via a vacuum pump connection valve 6.
[0020]
And the condition of the test body etc. accommodated in the inner tank 12 under pressure can be observed from the outside through the observation window 4a of the outer tank and the observation window 4b of the inner tank made of transparent FRP resin. At this time, since both of the observation windows 4a and 4b are flat, the specimen in the inner tank 12 is not observed bent like a conventional magic bottle or the like, and in a correct state. It is observed.
[0021]
Further, since the observation windows 4a and 4b are made of FRP resin material, there is no risk of destruction. Furthermore, the mounting portions (side flanges 1a, 2d, retainers 14, 15 etc.) of the observation windows 4a, 4b are fixed by bolts 16, 17 in a fluid-tight state. Leakage is reliably prevented.
[0022]
FIG. 2 shows another use example (use example 2) of the visualization container according to the above embodiment. In this example, the support bracket 22 of the cylinder 9 is fixed to the upper cover 3 fastened to the upper flange 2b by bolts 2c, and the test body 21 is attached to the tip of the piston rod 23 of the cylinder. And the liquid-gas repetition test is performed by moving up and down (reciprocating) the said test body 21 in the inner tank inside 12 with the cylinder 9. FIG.
[0023]
Also in this example, the state of the specimen in the inner tank 12 can be accurately observed through the side observation windows 4a and 4b. Other configurations are the same as the example shown in FIG. 1, and the same members as those in FIG.
[0024]
FIG. 3 shows still another usage example (Usage example 3) of the visualization container according to the embodiment. In this example, the heat exchanger coil 10 is fixed to the upper cover 3 fastened to the upper flange 2b by bolts 2c, the coil 10 faces the inner tank interior 12, and the coil 10 and the inner tank interior 12 The boiling state of the fluid is observed through the side observation windows 4a and 4b. The other structure is the same as that of FIG. 1, and the same member is shown with the same code | symbol.
[0025]
As described above, the visualization container according to the embodiment of the present invention can be used as a versatile pressure visualization container by attaching various test devices or members to the upper flange 2b as necessary via the upper cover 3. can do.
[0026]
【The invention's effect】
The present invention is configured as described above, and according to the present invention, the observation window is formed in a flat plate shape with reinforced plastic resin, so that the situation inside the inner tank is not accompanied by bending, It is possible to observe correctly without becoming opaque.
[0027]
Moreover, if the observation window is made of reinforced plastic resin and the outer and inner tanks are made of stainless steel as in claim 2, the destruction and corrosion due to the internal pressure are prevented, and the cryogenic fluid is kept at a high pressure. Can be accommodated.
[0028]
Furthermore, if comprised like Claim 3, since various test equipment, a member, etc. can be attached or detached to an upper flange as needed, a versatile pressurization type visualization container is obtained.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a pressurized visualization container according to an embodiment of the present invention.
FIG. 2 is a diagram corresponding to FIG. 1 showing another example of use in the embodiment.
FIG. 3 is a diagram corresponding to FIG. 1 showing still another application example in the embodiment.
FIG. 4 is a longitudinal sectional view of a magic bottle according to the prior art.
[Explanation of symbols]
1 Outer tank 1a Side flange (outer tank)
2 Inner tank 2b Upper flange 2d Side flange (inner tank)
3 Upper cover 4a, 4b Observation window 5 External flange 9 Cylinder 10 Coil 11 Space 12 Inside tank 13 Pressurized fluid inlet

Claims (3)

Inside the bottomed cylindrical outer tub, there is a space and a bottomed cylindrical inner tub is disposed, and the outer tub and the inner tub are fixed at both upper portions, and the outer tub and the inner tub are A flat plate-shaped observation window made of a transparent body through which the inside of the inner tank can be seen from the outside is provided on the side, and a fluid pressurized to a predetermined pressure is accommodated in the inner tank. Pressurized visualization container. The pressurized visualization container according to claim 1, wherein the outer tank and the inner tank are made of stainless steel, and the observation window is made of reinforced plastic resin (FRP resin). The pressurization type visualization container according to claim 1 or 2 with which the upper flange of said inner tank was constituted so that attachment of an object, such as a device and a member inserted into said inner tank, was removable.

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