DD211699A3 - CONTAINER WITH MAGAZINE DRUM FOR THE TRANSPORT OF RADIOACTIVE SOURCES - Google Patents

Abstract

The inventive container is suitable that radioactive sources can be implemented with different loading and unloading and transported between filling and emptying. The aim of the invention is u.a. in that the filling or emptying of the entire magazine drum in a hot cell is possible. The invention solution is achieved by the magazine drum of the container has a lying on the lower end axially mounted locking disc with blind holes and ueber form fit with pins and support to the lower container stopper in such an arrangement that the Durchgangssoeffnung existing in the locking disc with a slider closed and the magazine drum is independently rotatable.

Description

Title of the invention

Container with magazine drum for transporting radioactive sources

Field of application of the invention

The invention relates to a container for transporting radioactive sources between Püll- and Ausleerst hurry *

Character! Sitk of the known technical solutions

Containers with magazine drums for transporting radioactive sources are already known * These, however, no longer correspond to the increased requirements, many have no through-the-floor charging channel, resulting in a use restriction arises (eg * according to DE-OS 272 368 1).

Bs were introduced containers with a continuous loading channel and additional blind plugs and magazine drums with top and bottom open magazine channels. Partially they have no, but in an advantageous design an additional closure of the loading channel on the inner surfaces of the container floor, in this sense, versions are known in which, as in the SU-copyright 133 984 _S this closure installed in a plug and laterally next to the Magazintroüimel lying is operable. Thus, the magazine channels of the magazine drum in the container from above or

However, this embodiment still has the disadvantage that a filled magazine drum can not be pulled into a hot cell as a complete subassembly after removal of the upper container stopper, or it can be drained from this into the container. 1ώ this case leads to it _? that each channel is cumbersome and time consuming to load or unload individually, '

Object of the invention

The object of the invention is to provide a container for transporting radioactive sources, in which the disadvantages of the known containers are eliminated and the simple filling or emptying of the entire magazine drum in a hot cell is made possible. In addition, it is to be achieved that the components of the container are robust and the operation is uncomplicated,

Explanation of the essence of the invention

The object of the invention is to provide a container for the transport of radioactive sources, in which the magazine drum is provided with continuous magazine channels, the magazine channels are closed and germinated at a defined location both inside and outside of the container in any order.

According to the invention, this object is achieved in that there is a locking disc on the lower end of the Magasintronimel, which is axially connected to the Maga-siritrommel »The locking disc rests on the lower container plug, to secure the position grab pins or similar elements that are secured in the container plug are j in blind holes on the bottom of the locking disc a »By the positive engagement between the locking disc and container stopper is ensured that in the lock»

The passage opening is closed by a slide which can be operated from outside the container, wherein regardless of the slide position, the magazine drum in the container is rotatable and this rotational movement is also introduced from the outside. The solution is such that the locking disc consists of a base plate screwed with the slider housing so that the slider rests on the base plate and is located in sliding grooves of the slider housing

The slider has transversely to the direction of movement, a non-continuous groove _s in which the pin of a drive crank engages from above _f wherein the drive crank is rotatably mounted in the slide housing and / or the magazine drum and axially fixed by means of a crank disc and a spacer. The solution further includes that the magazine drum is supported vertically on the locking disc via a bearing disc and the slide is leveled in the sliding region of the radioactive sources to the level of the slide housing. The operating parts of the slide and the Magazintrommelj within the container, short end below the blind plug in Switching channel of the upper container plug,

The advantages of the invention are that the magazine drum of a container according to the invention in addition to the known favorable loading and unloading, after removal of the upper plug, in addition to the removal or loading of filled magazine drums is suitable, this suitability is a prerequisite for uncomplicated and safe loading operations in hot cells, as they can be done in good visibility and direct manipulator application «The chosen locking and actuation elements guarantee

inevitable, obvious circuits, a simple manufacture and defined installation position reliable puncture even after heating by the strong heat effect of fresh radiation sources »By closing the switching channel with an additional blanking plug ₉ are good conditions to meet the type B requirements for this container,

embodiment

Figure 1 Overall view of the container in section

Figure 2 magazine drum in section

Figure 3 cross section of the valve body

Figure 4 slider in plan view

The container 25 consists of the container body 26 _{% of} the magazine drum 1, the upper stopper 23 with central switching channel 22 and eccentric loading channel 7 and the lower stopper 5 with pins 4 and loading channel 7 "When removed blind plug 24 and open slide 8, the container 25 has a continuous loading channel 7 "The upper and lower plugs 23 j 5 are attached to the container body 26 * The magazine drum 1 is inserted ₃ that the passage opening 6 of the base plate 10 with the loading channel 7 is aligned j the switching shaft 20 and the hollow shaft in the switching channel 22 below the corresponding Blanking plug 24 endenj- the pins 4 engage in the blind holes 3 and the locking disc 2 rests directly on the lower plug 5. The radial clearance between the magazine drum 1 and the container body 26 and the axial play to the upper plug 23 and the Drehf.lache 19 of the slide housing 9 allow convenient installation and removal and rotation of the magazine drum 1. The magazine drum 1 has several .Magazinkanäle 27, by a lower locking disc 2 _} consisting of slide 8 _S slide housing 9 with slide grooves 11 and screwed base plate 10, are covered.

The Schieberbetatigung consists of a drive crank 14 with crank 15, pin 13 and shift shaft 20, the shift shaft 20 is rotatably mounted in the valve housing 9 and the magazine drum 1 and axially fixed by the crank pulley 15 and the disc 16, Ia sliding portion of the radioactive sources are the surface 18 of the slider 8 and the rotating surface 19 of the valve body 9 is leveled.

The crank disk 15 is dimensioned so that the position of the pin 13 coincides with the stroke end position of the slider 8 in the closed position and its maximum path in the closing direction. The double crank radius is at least as large _? that the path of the slide 8 corresponds to the diameter of the through-hole 6 plus its covering width at the outer edge. As thrust bearing for the magazine drum 1, the sintered bearing plate 17 is present, all games between the components are dimensioned so that the puncture remains secured even after heating by the thermal effect of the radioactive sources. The pulling of the container 25 with Sinzelquellen from above takes place after the general preparation such that the slide 8 is in the closed position over the passage opening β "lach filling a magazine channel 27, the magazine drum 1 with the hollow shaft 21 is rotated so that a free or Partially loaded magazine channel 27 is in the axis of the loading channel 7, The driving of the correct position is facilitated by not shown elements, z, S. spring loaded locking pins in contact with spherical caps, between the slide housing 9 and Magasintrommel 1 «The required torque for rotating the magazine drum. 1 is small, since the bearing plate 17 is only a small friction diameter and consists of sintered bearing metal,;

The emptying of a container 25 loaded with single-source containers from above takes place in an analogous reverse order,

The filling of the container 25 with individual sources from below is carried out after the general preparation'derart that the slide 8 is in the open position. With loading bar or gripper, a radioactive source is drawn into the magazine channel 27. Subsequently, the slide 8 is moved by turning the switching shaft 20 into its closed position, the source deposited and the loading rod pulled out of the magazine drum 1. The magazine drum 1, after rotation with the hollow shaft 21 with a preselected magazine channel 27, reaches a position in the axis of the loading channel 7 * after reopening of the passage 6 _? is the starting position for a new loading cycle restored *

The emptying of a loaded container 25 down is possible by the free Pail or aas discharging the radiation sources with devices * The switching operations are carried out according to the load, for any magazine channels only in a different order and direction of movement «The falling or emptying a whole Magasintromme- 1 is after Expansion of the same in a hot cell ensured by the fact that the locking disc 2 with closed slide 8 covers all magazine channels 27.

For gripping with devices has the magazine drum 1 for the upper profile approach 28 *

Claims (3)

invention claims 1, container with magazine drum for transporting radioactive sources with a continuous loading channel and located at the lower end of the magazine drum locking disc, the through hole of the locking disc with dsra continuous loading channel is aligned and operated independently of the operation of the magazine drum via a switching shaft from outside the container and closable and also the drum Magasin is rotatable by a hollow shaft from the outside, characterized in that the locking disc (2) on a lower Cpntainerstopfen (5) rests and is positively connected thereto, that for closing the through hole (β) of the locking disc (2 ) a slide (8) is inserted and that the locking disc (2) further "consists of a screwed with a slide housing (9) base plate (10) in such a Porm that the slide (8) rests on the base plate (10) and slides in the valve body (9) and in the assembled position e ine upper surface (18) of the slider (8) with a rotational surface (19) of the valve body (9) lies in one plane * 2 "container according to item 1, characterized in that the slide (8) has a transverse to its direction of movement, not continuous hat (12) into which a pin (13) of a drive crank (14) of engages above and the drive crank (14) ini slide housing (9) and / or the magazine drum (1) rotatably mounted and axially fixed by means of a crank disc (15) and a spacer (16). ₉ 3 »container according to points 1 and 2, characterized in that for the positive connection of lower container plug (5) and locking slide (2) in the container plug (5) at least two pins (4) are introduced, with the blind holes (3) the locking disc (2) correspond, » For this purpose, please write drawings Documents considered: DD-PS 84432 (Jut. U.2 G 21 F, δ / 00) DD-PS 156650 (Jut. U.2 G 21 F, 5/02) DE-OS 2723681 (Jut. U. ² G 21 C, 19/06) SU-PS 133984 (Jut. U. ² G 21 F, 5/02) GB-PS 1220041 (Jut. U. ² G 21 F, 5/00)