DE1056537B - Device for conveying a number of similar bodies to given places, in particular for loading nuclear reactors - Google Patents

Description

GERMAN

PATENT OFFICE

KL.81e 83/02

INTERNAT. KL. B 65 g

B47326XI / 81e

REGISTRATION DAY: JANUARY 2, 1958

BKKANWTMAGHDNG
THE REGISTRATION
AND ISSUE OF THE
AHSLEGESCHRIFT: APRIL 30, 19 5 9

In the case of reactors, for example, the fuel elements must be sealed under gas and radiation-proof sealing be remotely placed in their predetermined places. For this purpose are already remotely controllable Laying devices known that the fuel elements in a predetermined movement process grab them individually and transport them to the appropriate place.

However, if a larger number of fuel elements are to be transported into the reactor space, so the process with the known arrangement takes a relatively long time. The invention therefore relates to a device that, among other things, a much faster and easier laying of the fuel elements than previously possible.

Distribution devices for loading industrial furnaces are known per se, which have a lifting and work lowerable feed pipe with articulated parts and parts that can be slid into one another. on the other hand Loading units are known in which they can be extended with cable actuation for distributing the bulk material and lockable telescopic tubes are used. Furthermore, pouring pipes are made of articulated members known, in which the individual links with rigid, as eyelets for a cohesive traction device serving booms are provided. Similar articulated pipes are also already used as flexible masts for Hoists or the like. Has been used.

The invention uses these known details in a novel and advantageous combination for charging a nuclear reactor with fuel elements or the like and for distributing them Elements on the reactor room. It consists in the following union of the partially known per se Characteristics:

1. a joint tube, which consists of several rigid individual members that are against each other around a small angles are pivotally connected to each other and at least partially rigid boom with have eyelets at the ends.

2. a telescopic tube, at the movable end of which an end link of the articulated tube is attached,

3. Cable pulls for extending and retracting the telescopic tube as well as moving the articulated tube serve by attaching them to the free end link of the articulated tube and to the other Ekizel links are movably guided through the eyes of the boom. . ■

The invention is based on the exemplary embodiments in the pictures' explained. .. - - -.

Fig. 1 shows the overall arrangement as it; to the Laying fuel elements in the reactor is used,. ..- _ ■ -..-. · .-

Fig. 2 a joint pipe. -... "... ;;

Device for conveying

a number of similar bodies

at predetermined locations, especially for loading nuclear reactors

Applicant:

Brown, Boveri & Cie. Aktiengesellschaft, Mannheim-Käfertal, Boveristr. 22

and

Joint stock company for companies in the iron and steel industry, Essen, Altendorf er Str. 103

Dr. Rudolf Schulten, Mannheim,

Dipl.-Ing. Andreas Setzwein, Neuhermsheini,

and Helmuth Braun, Rülzheim,

have been named as inventors

Fig. 3 shows a single link thereof;

Fig. 4 to 8 relate to a telescopic tube with its details,

Fig '. 9 to 13 on a cable drive and '. -

Fig. 14 and 15 on an accessory, the storage container for. Fuel elements.

From Fig. 1 it can be seen that the laying of the, for example, spherical fuel elements must be carried out over a relatively large distance in the reactor, namely from a storage container T to "in the reactor space 16, whereby it should also be noted that the full height of the arrangement is not shown , but only their essential parts; as indicated by horizontal double lines, the individual parts are not shown in their entire length, but only in their end parts are located in a container 3, into which a telescopic tube 8 consisting of several individual tubes with an articulated tube 15 attached to the last individual tube 14 can be retracted when the device is no longer needed and the ge ¹ -

909 508/267

filled reactor is to be put into operation ". These cable drives allow the up and down movement of the partial tube 14 with the articulated tube 15, the control of the pivoting "or curvature of the" ' Articulated pipe 15 and 'the operation of a-Verschiu'sses' -19 to regulate the run-out of the balls to be laid at the end of the tube 15. At start-up the reactor is closed by a rotary closure disk 57, which is driven by a motor 25 via a gear 26 is driven f;

If the storage container ί is empty, it can be attached to a Drive 46 accessible via a ladder 54 together with the associated "inlet opening of the container 3 gas and radiation safe verscbloeiefiij ^ vom ' Container 3 released and transported away or exchanged for a full storage container of the same type \ verden. However, the container 3 can also be closed with the rotary disk 57 closed after it has been tightly closed remove it from its corresponding lower opening or replace. ao

The "articulated pipe 15 shown in detail in Fig. 2 consists of a chain of rigid Single link tetra 33, the dtirdh connecting pieces 34 are connected to each other so that two adjacent individual members against each other by one can be pivoted at a small angle. At one end the pipe 15 is on the last single pipe 14 of the telescopic tube 8 attached and at the other end it carries a closure flap 19, which is attached to its stiffening ribs is held only in two joints 20, 21.- At the joint 21 of the flap 19 is a Mating member 22 attached, which forms a stop against the last individual member of the joint tube and there rests firmly because a traction rope 18 attached to it, which is movably guided through eyelets 60 on the individual links is, is attracted. The force with which the rope 18 is tightened determines the curvature of the Pipe 15; d. i.e. by pulling the rope accordingly 18 the tube 15 is deflected. The flap 19 remains rotatable about the joint 21. An opposite one Cable 17 transmits only a low tensile force and keeps the flap 19 closed; If the rope 17 released, it opens - .. the flap 19 by pulling it rotates around joint 21 (clockwise in the picture) under the pressure of the opposing balls and the rope 17 pulls "The whole arrangement is symmetrically, so that instead of the rope 18 the rope 17 tightened and the tube 15 can be steered according to the other side. ''

Instead of a closure flap 19, any closure or flow regulating device can be attached in addition to any other devices such. B. a controlled by .ein pressure medium. So the last single member 33 may have inside an inflatable .Gummimanschette on τ. The pressure medium line is then to be led along the joint tube, ... what ", the,; gentlest,! And" safest, in the soul of a pulling rope,;., _ 'The end of the joint link has three degrees of freedom: the first in the - Vertical "through. Auf- .uiid_Äbf move the telescopic tube · (with: .dem [end 14); 'in the direction of the vertical" axis ₄ ;; the second, in a liorizontal circle by ^^ turning: the.TelesköJ? R tube around this vertical "axis -and [the; third radial direction durcii'.Aiiz. draw z.-B ^ desj ^ one . ^ nmrhalb "a space jst ^ alsftjedeiji ^ uiycf fm lääs .ffi ^ articulated pipe 15" reachable. '"' * -"'"'""

HI308 002 i

25th

30th

35

40

45

50

55 Fig. 3 shows a rigid individual link 33 of the joint

robres in cross-section, so in particular the an-order the movable cable guide through the eyes 60 fixed to arms 59 rigidly becomes clear.

Fig. 4 shows the extended telescopic tube 8 in a longitudinal section. The one F, nde of each individual pipe pointing to the articulated pipe carries an externally placed ring 32 which has the task of firstly holding the individual pipe together mechanically, secondly serving as a stop when the telescopic pipe is drawn together for the next single pipe slipped over it and thirdly as a stop when the Telescopic tube for the respective individual tube to serve correspondingly dimensioned counter-body 63 fastened in the concrete wall 62. On the last Einzekohr 14 hangs on links 34 - the articulated tube, the two actuating cables 17, 18 are guided through "the telescopic tube 8. -.

I _n Fig. 5 is a single segment 31 uerschnitt irn longitudinal and £), and in Fig. 6 of the approximately taken to the center of cross section of a single tube of the telescopic tube which is composed of four individual segments 31 that the only on the ausschiebbareri ends by folded ring are held together, which also serves as a stop when extending and retracting the telescopic tube. (The number of individual segments 31 that form a single tube is, however, insignificant). Otherwise, the individual segments 31 are completely separated from one another over the entire length.

The cross-section through a 'single tube of this telescopic tube according to Fig. 7 differs from Fig. 6 only in that - at the inner end of the flanks of the segments 31, over the length of the single tube, these connecting tubes are provided with particularly thin walls 6-1 that do not provide much mechanical support, but seal the telescopic tube against crumbling bodies and powdery, liquid or gaseous substances, if it is to be used in a different context. In this case, the flanks of the individual segments 31 together with the thin end walls 61 are still to be regarded as inwardly extending longitudinal minutes, which serve to guide the bodies to be passed through and to guide the individual pipes against one another. The thin walls 61 have the effect that when the telescopic tube is extended, the for the. For example, free balls to be passed through. Space over the length of the telescopic tube does not change significantly. The bottom pipe only needs to release the spherical diameter knife, while the next one needs to be wider on the inside via the smaller pipe that can be pushed over in each case by "the thickness of the thin walls6A ~." This slight change in the cross-section over the entire tube can be achieved with a conventional telescopic tube consisting of circular cylindrical individual tubes, with the same requirements for the mechanical stability and vef & indpst _> . "That?"', .sicji.- z ^ Bwdie-balls · Lm /' flfei.testen end of "des". / Teleskoprohres' - "able to jam each other .. In addition., .Wörä .dter, .- V> size .. both the the pipes are reduced,

WaMe'6T 'this corpefn'riur selir
kantgji biaten. ^. _v ^ _? , ε. _Γί
^l3 Sofi "däs' Tä ^ oJ ^ l

benen.

^ EnäerJfes Kprg ^. durd ^ lexte ^
jfti ^ tet ^ .aeiiir-. so. ei | ^ en _r ". ^ ch '.. a?; eIro ^! 5e * naph AbBTo nooh" better because äbft ^J the cross section for;, the balls over the whole tube .., ex, akjt, ^ ojostan * ijstj-'unä no edges at all on which the "spheres strike

can, are present, so that here the possibility 42 run to over the couplings 13 and worms the jamming "and the wear of balls and 41 to be able to drive the cable drums 10, Telescopic tube is completely omitted. . Figs. 10 to 12 show the somewhat opposite

Fig. 8 shows a cross-section of a telescopic tube constructed according to this pattern, staggered rope drives, with 5 winding devices for hoses, cables, etc. moved together, state simultaneously with retracted articulated tube. The inner edges of the flanks of the intermeshing gears 40 with worm drive 41 and cable planes of circular segments almost complement each other. a drum 10 in the iron container 37 and the decoaxial, circular cylinder surrounding the articulated tube, speaking, guided from above into the telescopic tube which is therefore not completely closed to the side so that there are ropes or cables or hoses. In the boom of the articulated pipe 15 with the cable pulls Fig. 10 the cables 44 for the entry and exit 17, 18 are accommodated in the segments of a circle. This protects the mechanically sensitive and the hoses 23 and in Fig. 12 the cables 17, 18 parts of the arrangement and saves space for the pivoting movement of the articulated pipe. housed. For the same reasons, Fig. 13 shows the drive that rotates the entire container in the segments including electrical lines 22, 37 and the telescopic tube via the gear wheel 36 and the compressed gas connections 23 and the cables 44 to the fixed internal toothing 39 of the container 3 and Retraction and extension of the telescopic tube. Inside consists of the motor 11 and the gearbox 12, the articulated tube 15 can be attached _{to the container 3 at each setting of the I n} Figs. 14 and 15

Telescopic tube fuel balls 2 duicihgleiten .. 20 suitable transport container with its details

In Fig. 9 the details of the receptacle can be seen, namely in Fig. 14 from the side and in the container 3 for the telescopic tube 8 (straight from Fig. 15 from above, seen in partial section. The driven) with the drive elements shown. The individual fuel balls 2 can be held by closures 3 itself is with its soft iron seal 64 55 in different, by side walls 27 and bottoms on the rotary closure disc 57, which in the rest 25 28 limited two-flight spirals are again filled by a soft iron seal 65 and and slide down in this until they are at a pressure of the opening or closing causing rotation of the air-controlled outflow regulating device 9 around the axis 66, at which they are held on the hydraulic. Since the container seven zweilikheber 67 raised roller bearing 68 shown is running, has continuous filaments, vierdie filled with passive blocking fluid seal can basically 69 30 _ze hn different ball locations for various gas and is sealed radiation safe. Purposes (fuel, breeding material, moderator, false

In any position and in any state of motion, balls etc.) can be stored in any controlled manner of the telescopic tube from the storage container 1 or programmed sequence by means of fuel elements through the opening 70 in the part of the actuation of the regulating elements 9 in the telescopic tube 8 . The drive to the single tube 8 can be delivered. False balls need and extend the telescopic tube 8 and to activate 2. B. if the actual fuel balls are made by a single _{motor 11 and a screw 35 on one (e.g.} in the case of a homogeneous reactor with graphite) pounded uranium or the like) no free gear 12. The movements in the individual free traps with a completely empty telescopic tube take place at the beginning of the degree of freedom, if appropriate electroma- 40 loading over the length of the container 3 tolerate, magnetic couplings 13 are engaged. The arrangement of the elements in coils is under clutches 13 which can be individually engaged and disengaged. In the given conditions, particularly space-saving, engaged clutch 13 will each have an important new structural feature

Corresponding cable drum 10 rotated and thereby the promise to be actuated by a common drive Operating rope operated. This arrangement 45 conclusions 6, 7 of the two containers 1, 3. This Verhat the advantage that a programmed laying process Keys should only be opened after the Beindependent from the speed of the motor 11 holder 1 applied to the container 3, to Scbrauist, which would otherwise be screwed tightly on a ben 4 with considerable effort and thus sufficient to the soft iron Seals 5 are kept constant speed pressed firmly and the tightness of the would have to. 50 intermediate space 56 by applying pressure

In the example shown, movements are checked in other gas. The pressure in space 56 can be given degrees of freedom can only be carried out if the part is left as a backup, Scope tube at the same time around its longitudinal axis, d. H. The closure 6 of the container 3 can only through

The end of the joint tube rotates in a circle. The focal twisting of a square at the end of a spindle 51 Fabric elements are therefore placed in a ring-white manner. In each case 55 are opened, which on a rigid with the container 3 when a ring is full, an electrically connected bracket 50 is briefly guided. With removed Magnetic coupling 13 coupled, whereby a container 1 is the container 3 at least without a work rope If a piece is drawn in or drained off, it cannot be opened at all. Only when put on that the laying begins in a new ring. This container 1 can be a square counter short on the square Coupling can also be done by touching 60 pieces 52 - using a handwheel 71 on a small handwheel corresponding contacts are placed by means of the feeler spindle 53 actuated with the part and by turning Scope tube 8 circumferential cams take place. a large Antoebs-

The gearwheel 36 is actuated by the spindle 46 via the transmission 35. The individual drive trains, which are mounted on a fixed internal toothing 39 of the spindles 46 and 53, are connected by stuffing boxes 29 Container 3 runs and thereby the inner spaces 30, the entire 65 and pressurized gas th structure supporting and sealed on a roller bearing 38 ...

running container 37 rotates about its longitudinal axis. The - ■ The closure slide 7 of the container 1 can with

Motor 11 is also not through the rotation via sliding contacts' removed container 43 is supplied, as well as the couplings 13, while the drive spindle 46 is turned, Gears 40 on further fixed internal gears 70, which also prevents the container 1 from opening

Claims (13)

-is · So only the two locks 6 can be opened together, but never one of them alone. Only when the container 1 is placed on the container 3 can the slides 7 be carried along by the catches 47 through the upwardly extending lock 6. On the other hand, for better sealing of the container 1, the slides 7 can be pressed laterally onto the corresponding container openings by the drive spindle 46, since they are held on toggle levers 49 in a vertical slot guide. The toggle levers 49 are attached to a hinge at the bottom of the container 1 and are pushed to the side at the top by the drive spindle 46 when they are closed. Patent claims: 1.5 1. Device for conveying a number of similar bodies to predetermined places, e.g. B. in stock or. Reaction rooms, in particular for loading nuclear reactors, marked by combining the following features, some of which are known per se: a) a joint tube (15), which consists of several rigid Individual links (33) are made, which can be pivoted against one another by a small angle are connected and - at least partially - rigid brackets (59) with eyelets (60) own the ends, b) a telescopic tube (8), at the movable end (14) of which an end link of the articulated tube (15) is attached, c) cables (17, 18), which are used to extend and retract the telescopic tube (8) and to move the Articulated tube (15) are used by being attached to the free end member of the articulated tube and au the remaining individual links are movably guided through the eyelets (60) of the boom (59). 2. Apparatus according to claim 1, characterized in that the free end member of the joint tube (15) a closing flap (19) which can be operated preferably via at least one cable pull is provided. ■ 3. Apparatus according to claim 2 using two cables, characterized in that that the two cables (17, 18) on the arms (59) of the free end member of the articulated robe are movable guided through eyelets (60) and each attached to a ' Joint (20, 21) of the closure flap (19) are attached in such a way that the closure flap (19) when Letting go of one of the two ropes (e.g. 17) threatening to open the mating joint (21), or by tightening this. Rope (17) can be closed again *. 4. Apparatus according to claim 1, characterized in that for actuating one at the free End link of the articulated tube (15) attached, controlled by a pressure medium closure or '"' Regulating device, a pressure medium line guided along the joint pipe and for this purpose on the Soul of one of the pull ropes is attached. 5. Device according to one of claims 1 to 4, characterized in that the individual tubes of the telescopic tube for guiding the dtorchzuileitenden Body and for the mutual guidance of the individual tubes have inwardly extending longitudinal grooves. - - 6. Apparatus according to claim 5, characterized in that the inner end walls (61) of the longitudinal grooves are much thinner than ... the other wall parts of the individual tubes. 7. Device according to one of claims 1 to 4, characterized in that the individual tubes ■ the telescopic tube from several over the length of the individual tube completely separate circular segments (31), which at their extendable end through a ring (32) placed around the outside, which simultaneously extends and retracts the TeIe-. . can serve as a stop, held together and their flanks complement each other completely or almost to a coaxial circular cylinder when the telescopic tube is pushed together. 8. Device according to one of claims 5 to 7, characterized in that between the individual grooves or within the individual ■ Circular segments (31) the erections for and extending the telescopic tube and / or to operate the articulated tube and its closure flap, also the cables, hose connections and electrical cables for others Control and regulation processes are accommodated. 9. Apparatus according to claim 8, characterized in that that a common drive for the retraction and extension of the telescopic tube and for moving the joint pipe is provided in the form of a motor (11) with several, individually Clutches that can be engaged and disengaged for driving cable drums (10) for the cables. 10. Device according to claim 9 in. Applicable. dung in reactors, characterized in that the drive with the cable drums and couplings is arranged in a radiation-proof envelope (3) into which the telescopic tube with the The articulated tube is retractable and is tight and radiation-proof when the telescopic tube and the articulated tube are retracted can be closed and thereby forms a unit that can be transported in and out. 11. The device according to claim 10, characterized in that -the envelope (3) on a Rotary closure disc (57) can be placed tightly and the telescopic tube with the attached device. steering tube can be introduced through this disc into the reactor space. 12. The device according to claim 10 or 11, characterized in that on the casing (3) A storage container (1) for the bodies to be introduced can be placed tightly on and removed in a gas- and radiation-safe manner is. ... 13. "Device according to claim 12 /. Characterized in that that a closure drive (46) is provided on the storage container (1), the .simultaneously a gas and radiation safe area closure (.6) of the container (1) with a gas- and radiation-proof closure (7) of the envelope (3) or is able to close, but cannot open one of the important locks (6, 7.) on its own. Publications considered: ■
German patent specifications No. 435 596, 8Q3 888,
528; , ""
U.S. Patent Nos. 2-524,748, 2,772,764. In addition 4 sheets of drawings © 909 508/267 4.59