JPH0642238Y2 - Communication device between container and horizontal wall of discharge enclosure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for communicating an opening formed in an upper portion of a container with an opening formed in a lower horizontal discharge enclosure wall. The present invention, more specifically, 1978
It relates to an improvement of the communication device described and claimed in the main patent No. 78 06 821 filed by the Secretariat of the Nuclear Energy Commission on March 9, 2014.

More specifically, the communication device according to the present invention is used in the field of the nuclear industry for dry transportation of irradiated nuclear fuel in a nuclear reactor, and for the lead container used for transporting nuclear waste and the discharge enclosure of a reprocessing plant. Used when transporting nuclear waste between.

The communication device described and claimed in the main patent has an adapter ring that is centered on the top of the container such that the top surface of the ring supports the cover sheet. The cover sheet is connected to the discharge enclosure wall via a deformable seal material. The communication device also has a ring that protects the bung. The ring rests on the shoulder of the bung and the upper edge of the ring contacts the underside of the removable cover that covers the cover sheet. In addition, the removable cover has a gripping member with which the handle or protrusion formed on the top surface of the plug can be gripped.

As a result of the above features, the assembly of plug, cover and guard ring can be pulled up without contaminating the surfaces of the plug and cover. These surfaces remain completely isolated from the contaminated atmosphere inside the discharge enclosure and container by a guard ring.

In the main patent communication member, a cover sheet and a cover are formed in the lower wall of the discharge enclosure and have a complementary conical shape. For this reason, the cover sheet has no radial play, and during docking the tilt of the cover sheet axis with respect to the wall opening axis is very limited. This is because the docking sheet remains in the opening. For docking to take place in good conditions, therefore, position the container more than adequately aligned with the axis of the discharge enclosure wall opening and then pull up the container to cover the adapter ring and the guard ring respectively.・
Seat and cover need to be docked.

To do this, use a trolley with a complicated design and place a container on it. This trolley has
A device for horizontally positioning the container, a device for slightly tilting the container axis, and a device for pulling up the container are provided. Such equipment complicates the trolley and increases the cost, so that the communication device is not easily used.

An object of the present invention is to improve the communication device so that the container and the cover sheet can be automatically aligned and aligned, thereby making the container simpler in design and lower in cost. The goal is to make it easier to carry on a carriage.

According to the present invention, this problem has been solved by the following. That is, it is a communication device of an opening formed in the upper part of the container and having a stopper with a gripping means, and an opening formed in the lower horizontal wall of the discharge enclosure located above the container, which is a stopper for sealing the container opening. An adapter ring surrounding and concentrically arranged on the upper part of the container, a stopper protection ring that rests on the shoulder formed on the stopper, a cover that is closed to the opening of the enclosure wall and is connected to the enclosure wall by a deformable sealing means.
In the type in which the detachable cover is placed on the seat, and the detachable cover has a means for gripping the stopper, the cover sheet and the enclosure are surrounded by a deformable sealing material. A predetermined radial play is provided between the wall and at least three concentric rods are linked to the cover sheet by facing a concentric surface formed on the adapter ring, whereby the cover is covered.・ The seat is
A centering rod that contacts the centering surface automatically adapts the adapter.
I decided to be centered on the ring.

According to one embodiment of the present invention, a centering rod is linked to a pin perpendicular to the plane containing the axis of the cover sheet, the docking position being the rod from the cover sheet to the axis of said sheet. And a position after docking, that is, a position in which the rod is substantially horizontal toward the axis line.

Further, each rod is beveled at its end near the pivot pin and can be abutted against a generally horizontal surface of the cover sheet to define its pre-docking position.

Each centering rod preferably holds a roller that can contact a centering surface formed on the adapter ring to reduce friction.

According to another feature of the invention, the centering surface is an annular surface, the annular surface comprising an outer frustoconical shaped portion which rises slightly inwardly toward the inside, and a substantially cylindrical inner portion. And an intermediate curve portion connecting both portions.

Since it is not necessary to use a trolley equipped with a container pulling device, the cover and the cover sheet are provided with mutually disengageable meshing means so that both of them can go up at the same time and below the opening of the enclosure wall. A container with an adapter ring and a guard ring is brought, and then the cover and cover sheet are simultaneously lowered so that the seat is automatically centered on the adapter ring.

Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows the upper end of the container 10 placed on a transport trolley (not shown), and the container axis is substantially vertical. Circular opening 12 formed on top of container 10
Is sealed with a stopper 14. On the horizontal upper surface of the stopper 14,
A means for gripping the stopper is provided in the center. In this case, the handle 15 has a cylindrical shape.

In FIG. 1, the container 10 is a horizontal lower wall of the discharge enclosure 17.
It is located below a circular opening 18 formed in 16. Only a portion of the wall 16 surrounding the opening 18 is shown in the figure.

According to the main patent, when brought below the opening 18, the container 10 has a front adapter ring 20 for the stopper.
And protective ring 22 can be attached.

More specifically, the adapter ring 20 is a container
It is placed on the horizontal top surface of 10 and is centered on the container by the diagonal shoulders 20a. The adapter ring 20 is preferably fixed to the container 10 with a fixing member (not shown) such as a screw. The adapter ring is arranged around the bung 14.
That is, its minimum inner diameter is larger than the maximum outer diameter of the plug 14.

Further, the protective ring 22 of the stopper 14 is substantially annular, and
Located within the ring 20, its flat underside is the shoulder 14a of the bung 14.
It is supposed to be on top of. In the illustrated embodiment,
The outer surface of the guard ring 22 and the inner surface of the adapter ring 20 are complementary and partly frustoconical.

As described in the main patent, the communication device includes an adapter ring 20 and a guard ring 22, as well as a cover seat or cover sheet 24 defining an opening 18 and an opening 18 disposed within the opening 18. And a cover 26 for sealing.

More specifically, the cover sheet 24 is an annular portion connected to the surrounding wall 16 via a deformable seal material.
This sealing material allows the cover sheet 24 to be displaced in a direction perpendicular to the surrounding wall 16. According to one of the important features of the present invention, the sealing material also defines a predetermined radial play between the cover sheet 24 and the enclosure wall 16, which play causes the cover sheet to move. 24 can be displaced horizontally and obliquely with respect to the surrounding wall 16.

In the embodiment of FIG. 1, the sealing material forms a hydraulic joint 28. This hydraulic joint, on the one hand, reliably seals the connection between the enclosure wall 16 and the cover sheet 24 and, on the other hand,
As described above, the seat 24 is designed to be displaceable in the vertical direction, the horizontal direction, and the direction in which the seat axis is slightly inclined with respect to the vertical line.

Furthermore, the cover sheet 24 is arranged in a flange 29 which is hermetically fixed to the enclosure wall 16. The flange 29 has an inner cylindrical surface 29a. This cylindrical surface 29a is bounded downwards by a horizontal bearing surface 29b and upwards by a rim with a bush 29c. The lower end of this bush 29c is immersed in the sealing liquid contained in the annular channel. The annular channel is formed between the outer surface of the cover sheet 24 and the bush 24a projecting upward from the lower diameter portion of the cover sheet 24.

The upward displacement of the cover sheet 24 is limited by the upper end of the bush 24a catching on the upper rim of the flange 29.

In FIG. 2, the downward movement of the cover sheet 24 is limited in the absence of the container 10 by the horizontal plate 24b linked to the sheet 24 being held against the flat upper surface of the flange 29. It is shown.

Furthermore, horizontal movement of the cover sheet 24 within the flange 29 is limited by radial play. This play is formed between the inner cylindrical surface 29a of the flange and the outer cylindrical surface 24c of the larger diameter portion facing this surface 29a. In practice, this radial play can be several centimeters.

The cover 26, which is disposed within the opening 18 defined by the cover sheet 24, fits within the opening 18 due to gravity, and
Seal 18 For this purpose, the cover sheet 24
It has an annular rim 24d at its lower end, which rim 24d projects radially inwardly of the opening 18 and which also
The lower surface of the cover 26 is supported on the upper surface of d. Annular rim 24d
A reliable seal is ensured by the coupling or couplings produced by the. With a joint thicker than the thickness of the rim 24d,
A joint can be fitted to the inner edge of the rim 24d. The fitting also provides the necessary seal between adapter ring 20 and cover sheet 24 during docking.

Further, for environmental protection of the environment, the openings 18 and the outer surface of the cover 26 have complementary shapes. In the illustrated embodiment, these shape features are that the top is cylindrical and has a large diameter, the bottom is cylindrical and has a smaller diameter, and the middle is frustoconical.

The cover 26 has, for example, a ring in the center of its horizontal upper surface.
A device such as 26a is provided. With this device,
The cover 26 is hooked on a hook 30 of an operation tool such as a winch. The winch is placed in the discharge enclosure,
Not shown in FIG.

What is unique compared to the main patent communication device is that there is a disengageable interlocking part between the cover 26 and the cover sheet 24, as will be understood from the reason explained later. Is. This mating part is configured as a bayonet joint 32 in the illustrated embodiment.

Further, as shown in the left half of FIG. 2, the cover 26
On its underside, it is provided with a grip, which in the illustrated embodiment is designed as a gripper 34. This gripper 34
Since the handle 15 of the wire 14 can be grasped, the stopper 14 is attached to the enclosure 17
It is pulled up with cover 26 by a winch located therein.

In accordance with the present invention, cover sheet 24 includes at least three centering rods 38 on its lower surface. These rods 38 are centered surfaces formed on the top surface of the adapter ring 20.
You can work with 40. In addition, these centering rods 38
Are all the same and are linked to the cover sheet 24, and are regularly distributed around the axis of the sheet 24. The centering surface 40 is an annular surface having a uniform section centered on the axis of the adapter ring 20. The shape of one of the centering rods 38 and the centering surface 40 is shown in detail in FIG.

As shown in FIG. 3, each rod 38 is linked to the cover sheet 24 by a pivot pin 42. The pin 42 extends in a direction perpendicular to a plane passing through the axis of the seat 24. Pin 42 extends through a corresponding rod 38 near one end thereof. The end 38a of this rod is formed obliquely with respect to the longitudinal axis of the rod.

When the rod 38 is not in contact with the centering surface 40 of the adapter ring 20, its beveled end 38a is in contact with the bottom of the radial slot 44 formed on the lower surface of the cover sheet 24. That is, reference numeral 38-I in FIG.
1 to the position shown in the left half of FIG. In this pre-docking position, the rod 38 projects downwardly from the underside of the cover seat 24, obliquely to the seat axis.

At the position shown in the left and right parts of FIG. 2 and at the position shown by reference numeral 38-II in FIG. 3, each of the rods 38 will occupy the other final position, the rods being It is once nearly horizontal to the axis of the cover sheet 24. This position corresponds to the rod position after docking.

A roller 46 is attached to the opposite end of the slanted end 38a via a pin 48 parallel to the pin 42. During docking,
Each of the rods 38 contacts the centering surface 40 via rollers 46.

FIG. 3 also shows that the concentric surface 40 has an outer frustoconical portion 40a which is gradually raised inwardly, which portion forms a very small angle with the horizontal plane. Concentric surface 40 further includes a substantially cylindrical inner portion 40b.
And an arch-shaped intermediate portion 40c. The intermediate portion 40c continuously connects the inner portion 40b and the outer portion 40a. The radius of the intermediate portion 40c is substantially equal to the radius of the roller 46.

For effective centering, the radius of the inner cylindrical portion 40b is equal to the distance each roller 46 leaves the axis of the cover sheet 24 when the rod 38 is in the post docking position 38-II. Keep it slightly smaller than that distance.

The case of actually using the communication device according to the present invention will be described in order with reference to FIGS. 1 and 2.

First, as shown in the left half of FIG. 1, the cover 26 is locked to the cover sheet 24 via the insertion joint 32. Then, this assembly consisting of the cover and the cover sheet is hooked with a winch placed in the discharge enclosure.
And using the ring 26a. In this state, cover 2
6, the cover sheet 24, and the rod 38 held by the sheet 24 are located above the lower surface of the flange 29 fixed to the lower enclosure wall 16. Then the front adapter ring
The container 10 with 20 and the protective ring 22 is brought to the opening 18 by a trolley with a simpler design than the conventional one.
The axis of the opening 18 and the axis of the container 10 are positioned substantially on the same line. Since the cover 26 and the cover sheet 24 are located above in the flange 29, the upper surface of the protective ring 22 can be located just below the lower surface of the flange.
The container is fixed immovably in this position.

Next, as shown in the right half of FIG. 1, the cover 26 and the cover sheet 24 are gradually lowered using a winch (not shown). During this operation, the roller held by the rod 38 comes into contact with the outer frustoconical portion 40a of the centering surface 40.

As soon as this contact occurs, the lowering movement of the cover and cover sheet causes rod 38 to begin pivoting towards the axis of cover sheet 24. Rolling on the outer portion 40a causes the roller 46 to gradually approach the intermediate arcuate portion 40c and the inner cylindrical portion 40b.

The positioning of the container 10 with respect to the opening 18 is roughly random at first so that not all of the rollers 46 contact the intermediate portion 40c and the inner portion 40b at the same time. In reality, one or two roller depressions held by rod 38
First come into contact. The intermediate portion 40c and the inner portion 40b act as a bearing forcing the corresponding rod 38 radially outward. The cover 26 and cover sheet 24 are suspended in a floating manner by a winch (not shown), and a hydraulic coupling 28
Other than that, it will not be connected to the enclosure wall 16, so
The assembly consisting of the cover sheet 24 and the cover 26 is able to move radially, which results in the adapter ring 20.
The assembly can be centered on the guard ring 22. This desired centering effect is achieved by the outer surface 24 of the cover sheet.
It is automatically secured as a result of radial play between c and the inner surface 29a of the flange 26.

It should be noted that this centering effect also has the effect of automatically compensating for the inclination of the axis of the container 10 with respect to the vertical line. The floating connection between the cover sheet 24 and the enclosure 16 also allows the cover sheet to tilt slightly with respect to the vertical.

When docking is complete, as shown in the left half of FIG. 2, all rods 38 occupy the horizontal position 38-II shown in FIG. The flat upper surface of the adapter ring 20 then contacts the flat lower surface of the cover sheet 24, and the flat upper surface of the protective ring 22 contacts the flat lower surface of the cover 26.

In order to transfer the material in the container 10 into the enclosure 17, when the inside of the container 10 and the discharge enclosure 17 are linked, the insertion joint 32 is removed, the plug 14 of the cover 26 is grasped by the grip 15 by the gripper 34. While connected, they are connected. The cover 26, the plug 14 and the protective ring 22 are then one integrated part. Within this assembly, the guard ring 22 seals the volume created between the lower surface of the cover and the upper surface of the stopper. The link of the assembly piece is produced by a winch arranged in the enclosure 17 by pulling up the assembly piece according to the main patent.

From the above description, the following points will become clear. That is,
The communication device according to the present invention uses the cover sheet 24 as a container.
It is self-centering to 10, and the axis of the seat 24 can be automatically aligned with the axis of the container 10, so that it is not necessary to use a complicated design trolley to position the container. Furthermore, the provision of the plug-in joint 32 allows docking by lowering the cover sheet 24 onto the container 10, which also dispenses with the lifting function of the trolley.

The invention is not limited to the embodiment shown in the drawings, but extends to all variants. Therefore,
As in the illustrated embodiment, the centered surface 40 may be tilted inward instead of being tilted outward. In that case, the rod 38 is bent in the radial direction outward with respect to the lower surface of the cover sheet. The shape of the rod is also the same as the shape of the center surface 40.
It can be different than in the illustrated embodiment.

[Brief description of drawings]

FIG. 1 is a schematic vertical cross-sectional view of a communication device according to the present invention, in which the left and right halves are used for lowering the assembly parts formed by a container and a cover and cover sheet, respectively. Fig. 2 and Fig. 2 are vertical sectional views similar to Fig. 1, showing the positions occupied by the left and right halves at the end of lowering of the cover and cover sheet assembly and when the stopper and cover are pulled up, respectively. FIG. 3 and FIG. 3 are enlarged vertical cross-sectional views of one centering rod and the corresponding centering plane. 10 …… container, 12 …… container opening, 14 …… stopper, 16…
… Enclosure wall, 17 …… Discharge enclosure, 18 …… Cover / sheet opening, 20 …… Adapter ring, 22 …… Protection ring, 24…
… Cover sheet, 24a …… Bush, 24b …… Horizontal plate, 24c …… Outer cylindrical surface, 24d …… Rim ring, 26 …… Cover, 28 …… Hydraulic joint, 29 …… Flange, 29a …… Inner side Cylindrical surface, 29b ... Horizontal bearing surface, 29c ... Bush, 34 ...
Grippa, 38 …… Concentric rod, 40 …… Concentric surface, 40a ……
Outer part, 40b …… Inner part, 40c …… Middle part, 42 ……
Pin, 48 ... pin.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jean Zitsy Sibilli France Icyle Mourinau, Abou de Verdun 126 (56) References JP 54-133298 (JP, A) JP 52-31299 (JP, JP, A)

Claims (6)

[Scope of utility model registration request] 1. A gripping means (1) formed on an upper portion of a container.
5) A device for communicating the opening (12) having the stopper (14) with the opening (18) formed in the lower horizontal wall (16) of the discharge enclosure (17) located above the container, which is a container. An adapter ring (20) concentrically arranged around the stopper (14) for sealing the opening (12) and a stopper protection ring placed on a shoulder (14a) formed on the stopper (14) on the upper part. (22) and a removable cover (26) placed on a cover sheet (24) that closes the opening (18) and is connected to the wall (16) of the discharge enclosure by a deformable sealing means (28). And the detachable cover (26) has a means (34) for gripping the stopper (14), the cover sheet (24) and the surrounding wall (with a deformable sealing material (28). 16) with a certain radial play and at least three centering rods (38) Facing the grayed centering surfaces formed on (20) (40) are linked coupled to the cover sheet (24), whereby the cover sheet (24),
A communication device characterized by being automatically centered on an adapter ring (20) by a centering rod (38) contacting the centering surface (40). 2. The communication device according to claim 1 of the utility model registration, wherein the constant center rod (38) is linked to the pin (42) perpendicular to the plane including the axis of the cover sheet (24). The docking position before the docking, that is, the rod (38) projects obliquely downward from the cover sheet towards the axis of the seat (38-I), and the post-docking position, that is, the rod faces the axis. A communication device characterized in that it can move between a position (38-II) that is substantially horizontal. 3. The communication device according to claim 2 of the utility model registration claim, wherein each rod (38) has a pivot pin (4).
The end close to 2) forms a beveled edge (38a) and can be applied to a substantially horizontal surface (44) of the cover sheet (24) to define the pre-docking position (38-I). A communication device characterized by the above. 4. The communication device according to any one of claims 1 to 3, wherein the constant center rods (38) are formed on the adapter ring (20). A communication device characterized by holding a roller (46) capable of contacting the core surface (40). 5. The communication device according to any one of claims 1 to 4, wherein the constant center surface (4
0) is an annular surface, and this annular surface has an outer frustoconical portion (40a) that gradually increases inwardly toward the inside, a substantially cylindrical inner portion (40b), and an intermediate portion that connects these portions. A communication device having a curved portion (40c). 6. The communication device according to claim 1, wherein the cover (2
6) and the cover sheet (24) are preferably provided with mutually disengageable meshing parts (32) so that the cover and the cover sheet are simultaneously raised and formed on the wall of the discharge enclosure. Container (1) with adapter ring (20) and guard ring (22) below the open opening (18)
0) can be positioned, and then the cover and cover sheet can be moved down at the same time, and the seat (24) can be automatically centered on the adapter ring (20). Communication device.