EP0084867A1 - Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur - Google Patents

Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur Download PDF

Info

Publication number
EP0084867A1
EP0084867A1 EP83100498A EP83100498A EP0084867A1 EP 0084867 A1 EP0084867 A1 EP 0084867A1 EP 83100498 A EP83100498 A EP 83100498A EP 83100498 A EP83100498 A EP 83100498A EP 0084867 A1 EP0084867 A1 EP 0084867A1
Authority
EP
European Patent Office
Prior art keywords
pipe
manipulator according
vehicle
manipulator
lane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83100498A
Other languages
German (de)
English (en)
Other versions
EP0084867B1 (fr
Inventor
Erich Kaetscher
Johannes Stoss
Robert Weber
Dieter Zoeberlein
Jakob Weber
Josef Forster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kraftwerk Union AG
Original Assignee
Kraftwerk Union AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19823202248 external-priority patent/DE3202248A1/de
Priority claimed from DE19833301536 external-priority patent/DE3301536A1/de
Application filed by Kraftwerk Union AG filed Critical Kraftwerk Union AG
Publication of EP0084867A1 publication Critical patent/EP0084867A1/fr
Application granted granted Critical
Publication of EP0084867B1 publication Critical patent/EP0084867B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • F22B37/006—Walking equipment, e.g. walking platforms suspended at the tube sheet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/483—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers specially adapted for nuclear steam generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F28G1/166—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from external surfaces of heat exchange conduits

Definitions

  • the invention relates to a pipe lane manipulator for high-pressure blowdown of heat exchangers, in particular for the tube sheet area of the steam generators of nuclear power plants, according to the preamble of claim 1. It also relates to an advantageous spray head for such a pipe lane manipulator according to claim 19 and a method for performing a spraying operation with such a spray head according to claim 20.
  • a pipe lane manipulator according to the preamble of claim 1 is known.
  • a spray lance is pushed by hand through a steam generator hand hole through the pipe alley and pivoted back and forth by a motor.
  • the lance is positioned in the correct spraying position by observing the nozzle jet and by adjusting the lance: the water jet is atomized or scattered when the pipes are hit, which is not desirable; the water jet is closed when the nozzles spray precisely into the intermediate spaces between the pipes.
  • the insertion of the lance, its positioning and its advance are relatively cumbersome and time-consuming. It should be noted that the operator is exposed to an increased dose of radiation during his stay at the steam generator hand hole.
  • the invention has for its object to design a pipe lane manipulator according to the generic term, that, while overcoming the difficulties described, the insertion or assembly into the working position and the removal or removal of the manipulator can be carried out much more conveniently, and the positioning in the spraying position and the feed can take place largely automatically, so that observations can be made through the hand hole or by means of suitable means TV cameras can only be limited to random control observations.
  • Subordinate tasks consist in the creation of an advantageous spray head for the new pipe channel manipulator and the specification of a particularly favorable spraying method with such a spray head, which makes the blowdown process particularly effective.
  • the main task is solved by the features specified in the characterizing part of claim 1.
  • the two secondary tasks are solved in the characterizing features of claims 19 and 20.
  • the pipe duct manipulator designated as a whole in FIG. 1, hereinafter referred to simply as the manipulator, is used for high-pressure blowdown of heat exchangers which are provided with at least one pipe duct 2 within their bundle of heat-exchanging pipes.
  • FIGS. 1 and 2 Such a steam generator is shown in detail in FIGS. 1 and 2. It has the already mentioned Rohrgasse 2 in the middle between the two legs 3a, 3b of its U-tube bundle 3.
  • the tube bundle 3 is sealed with the ends of its heat-exchanging tubes 3 'in corresponding bores in the tube sheet 4, that is to say in particular welded in, the primary chamber spaces of an inlet and an outlet chamber being to be considered below the tube sheet 4.
  • the housing shell of the steam generator forming a pressure vessel is designated by 5; an annular space 7 is left between it and the shirt 6 surrounding the tube bundle 3, which is normally referred to as a drop space and - as shown in FIGS.
  • 1 and 2 - can also be used to perform service operations.
  • the diametrically opposite two hand holes 8.1 and 8.2 are in alignment with the longitudinal axis 2 'of the Rohrgasse 2; they serve to insert and remove the manipulator 1.
  • those 8.3 and 8.4 are offset by 90 ° with respect to the hand holes 8.1, 8.2; they are used to insert the suction proboscises 10.2 located at the ends of suction hoses 10.1, the suction hoses 10.1 being connected to suction pumps 10.
  • the 90 ° hand holes 8.3, 8.4 are used to insert so-called pigs, that is pressure hoses 11.1 with nozzle heads 11.2 at their ends, which are connected to high pressure pumps 11 are connected.
  • a distribution box 11.3 is arranged, for example; for the sake of simplicity, the pump is not shown for the other pressure line 11.1.
  • the direction of flow of the rinsing liquid is indicated by the arrows sp; this is injected into the ring zone 7 via the nozzle heads 11.2 at a high pressure of, for example, 100 bar and then sucked off by the suction heads 10.2 together with the deposit.
  • the height distance of the center line of the hand holes 8 from the tube sheet 4 is approximately 250 to 300 mm.
  • the tube sheet is grooved in the area of the ring zone 7, so that an annular groove is formed in which the deposits torn off by the rinsing process with the manipulator 1 and also with the nozzle heads 11.2 collect and are suctioned off from there can.
  • the other hand holes are each shown closed with a lid 9; if necessary, however, they can also be opened for rinsing purposes for introducing the pressure and suction hoses 11.1, 10.1.
  • the spray head 13 of the manipulator 1 equipped with nozzles 12 is inserted through the hand hole 8.1 into the pipe alley 2 and is movable in this pipe alley 2 along the longitudinal axis 2 'of the pipe alley and can be positioned such that the spray jets of the spray head 13 are each in the pipe grid spaces, which can also be called pipe grid streets, are directed.
  • the roughly kidney-shaped lines 14 in FIG. 1, compare the outline 14 in FIG. 2, indicate the location of mud mountains, which are removed by the spraying process by means of the manipulator 1 and finally eliminated will.
  • the sludge water that accumulates and contains the torn deposits passes through the pipe lattice lanes 15 (see FIG.
  • the spray pressure for the spray head 13 which is connected to a high-pressure hose 13.1, is approximately 220 bar.
  • So-called deionate is used as spray water, which is chemically treated water, the conductivity of which must be below 100 / uS and the pH of which must be between 5 and 10.
  • the deionized material is removed from a storage container of, for example, 3 m 3 content. The water injected into the steam generator is then pumped out and returned to the storage container via a filter unit.
  • the deionized water circulating in the circuit is continuously monitored for its pH value and conductivity during the cleaning process and is renewed when the aforementioned limit values are no longer met.
  • the outer water circuit with reservoir, pumps, filters and monitoring devices is not shown because it is not necessary to understand the invention.
  • FIGS. 3 and 4 show in more detail that the spray head 13 is carried by a vehicle m0 of the manipulator 1 that can be inserted into the pipe alley 2 through a service opening (for example, hand hole 8.1 in FIG. 1) and can be moved remotely therein.
  • the nozzles 12 of the spray head 13 can be positioned in their respective spray position of a spray position sequence extending over the entire length of the pipe aisle in that the vehicle m0 conforms to the pipe division with extendable and retractable clamping feet k1, k2 and k3, k4 on the pipes 3 'of the two opposite pipe lane sides 2a, 2b can be clamped.
  • the manipulator with its vehicle m0 and its spray head 13 is in the injection position, ie both the clamping feet k1, k2 in the clamping plane aa and the clamping feet k3, k4 in the clamping plane bb are in the extended, clamped position which they lay on the pipes 3 'with the concave clamping surfaces adapted to the pipe contour, in the illustrated case it is the pipes 3.1, 3.2, 3.3 and 3.4.
  • FIG. 3 A comparison of FIG. 3 with FIG. 5 shows that there are three types of pipe grid lanes in the pipe grid configuration shown: 90 ° lanes 15.1, 30 ° lanes 15.2 and 150 ° lanes 15.3.
  • the manipulator 1 must be able to spray with its spray jets through all these different types of alleys, for which purpose different spray heads with correspondingly oriented spray nozzles are provided.
  • a 90 ° spray head is shown, that is, its nozzles 12 are at right angles to the longitudinal pipe axis 2 'or the feed axis of the manipulator 1, so that the tubular grid streets 15.1 can be sprayed with these nozzles.
  • the individual nozzle pairs are specifically called 12a, 12b, 12c.
  • the direction of the spray nozzle orifices 12 and their distance from the clamping planes bb and aa of the clamping feet k are matched to the pipe pitch t in such a way that the spray jets 16 (see FIG. 4) in any case get into the pipe grid streets 15 (see FIG. 5) or specifically in FIG. 3 the pipe grid streets 15.1.
  • This formula also applies analogously to spray heads, the nozzles of which are not at right angles, but, for example, at an angle of 30 ° or 150 ° Radiate into the pipe lattice lanes in the longitudinal direction of the pipe lanes, if the intersection of the nozzle axis with the pipe connection line cc parallel to the pipe lane direction 2 'is considered as a distance criterion. In other words, in this case the nozzle jet is always aligned with the center of the pipe grid lanes 15 (see FIG. 5).
  • the vehicle m0 is a walking mechanism which can be moved along the feed axis v, which coincides with the central axis 2 'of the pipe alley 2.
  • the vehicle m0 consists of at least two walking mechanism members m1, m2 which can be moved with respect to one another in the feed axis v and which can also be referred to as the first and second walking mechanism members.
  • Each of the walking mechanism members m1, m2 can be locked with at least one pair of clamping feet k1, k2 or k3, k4 on the tubes 3 'located on both sides of the tube lane 2.
  • FIG. 1 Shown is a locking of the walking member m1 with its clamping feet k1, k2 on the opposite tubes 3.1, 3.2 and a locking of the walking member m2 with its clamping feet k3, k4 on the opposite tubes 3.3, 3.4.
  • the two stepping mechanism members m1, m2 one of the two is connected to the bottom guide plate 17 with which the vehicle m0 can slide along the tube sheet 4. In the illustrated embodiment, it is the second. Step unit m2.
  • the feed motor which is generally designated C, is also mounted on the second walking mechanism member m2, and its movable drive member is located within the Sealing sleeve 18 is arranged and connected to the first stepping element m1.
  • It can be an electric motor with a gear which, for example, rotates a spindle, the traveling nut which is axially displaceable but non-rotatably mounted on the spindle being connected to the first walking mechanism member.
  • it can also be hydraulic or pneumatic piston-cylinder systems. This applies mutatis mutandis to the actuators B1, B2 of the clamping feet k3, k4 and the actuators A1, A2 of the clamping feet k1, k2, which are also surrounded by sealing sleeves 19 and 20, respectively.
  • Pneumatic piston-cylinder systems are particularly advantageous, and can be acted on from two sides, as will be explained.
  • FIG. 3 and 4 show that the spray head 13 with its high-pressure hose connection 13.2 is a separate one Forms unit which can be coupled to the vehicle m0 by means of quick coupling 21.
  • This coupling is indirect, since the spray head 13 is connected to a traveling nut 22.1, which is mounted on the vertical threaded spindle 22 of an elevator member 23 (see in particular FIG. 4) in a rotationally fixed but longitudinally or vertically adjustable manner.
  • the elevator member 23 consists of a vertical frame with bottom and top-side bearing plate 23.1, 23.2, the already mentioned, rotatably mounted on the bearing plates vertical threaded spindle 22, also mentioned, on the spindle rotatably and height-adjustable traveling nut 22.1 as a support body of the spray head and one of the spindle ends, in the present case the upper, assigned rotary drive, of which only a coupling pin 23.3 for coupling a drive shaft can be seen in FIG. 4.
  • the quick coupling 21 as well as the elevator member 23 are only simplified and shown schematically in FIGS. 3, 4, they are likewise described in more detail with reference to FIGS. 6 to 8.
  • the elevator member 23 has the particular advantage that at the start of the spraying process the spray head 13 can begin with the spraying process not in the lower position shown in FIG. 4 but in a higher position, because in general (compare the Schlammberg contours in FIG. 1 and Fig. 2) more or less large amounts of sludge have accumulated between the inspection cycles and these are best removed from top to bottom. So you go through the pipe lane 2 with the manipulator 1 so that the mud mountains are removed from top to bottom or washed out, successively with each passage through the pipe lane the spray head 13 with its elevator member 23 is adjusted a little downwards.
  • FIG. 7 shows the feed motor C, designed as a stepping piston-cylinder system which can be acted upon from two sides, the stepping cylinder c2 being connected to the stepping member m2 and the stepping piston c1 being connected to the first stepping member m1.
  • the first walking element m1 is essentially a cylinder block which has the cylinder bores of the two tensioning piston-cylinder systems A1, A2 (FIG. 6) and the bores arranged in a rectangle for the piston guide rods. The latter are labeled a4, the cylinder bore is labeled a3.
  • the second walking mechanism member m2 is essentially a cylinder block, which not only contains the cylinder bore c3 for the walking piston c1, which is oriented in the feed direction v, but also transverse to the cylinder bore b3 for the two tensioning pistons of the tensioning piston-cylinder system B1, B2 of the clamping level bb.
  • four holes b4 arranged in a rectangle are provided for receiving the associated tensioning piston guide rods.
  • Bottom and top sides of the second treadmill link m2 have approximately T-shaped guide grooves 24 and 25 milled (see also FIG.
  • the first treadmill link m1 has a bottom and a top-side guide rail 24a or a correspondingly double-T-shaped cross-section 25a is guided so as to be longitudinally displaceable.
  • the guide rails 24a, 25a are firmly connected to the cylinder block of the first stepping mechanism member by means of cylinder screws, in particular Allen screws.
  • cylinder screws in particular Allen screws.
  • the piston rod c11 of the walking piston c1 is screwed, the piston plate c12 inside half of the cylinder bore c3 can be moved back and forth on two sides.
  • a plate-shaped cylinder head gasket which is centrally penetrated by the piston rod c11, is designated c4, the piston ring seated in an annular groove of the piston c12 with c5 and the other ring seals in the cylinder head gasket c4 with c41.
  • the tensioning pistons a1, a2 and b1, b2 are indicated by dashed lines in FIG. 6; the associated piston guide rods are designated a11, a21, b11 and b21. Like the piston rods a12, a22, b12, b22, these are connected at their outer ends to the support feet k1 to k4; the latter have an approximately saddle-shaped contour to adapt to the heat exchanger tubes.
  • the plate-shaped cylinder head gaskets for sealing the cylinder chambers and the piston rod bushing are generally designated a41 and b41.
  • FIG. 8 shows a cross section and an external view of the two tensioning piston-cylinder systems B1 and B2.
  • This shows the clamping piston version with the piston ring b5 in a corresponding piston ring groove and the ring seals b42 on the cylinder head gasket b41.
  • the clamping feet are tightened by means of strong countersunk screws 270 on the piston rods of the tensioning pistons.
  • the compressed air connections for the walking piston c1 are designated c + and c-, the plus symbol symbolizing that the associated compressed air connection is used to extend the piston, the minus symbol accordingly symbolizes a compressed air connection, when the piston is actuated when the piston is retracted.
  • the tensioning pistons are also used analogously for the tensioning pistons, their common to the end drive serving compressed air connections with a + or b + and their compressed air connections assigned to each individual tensioning piston for retraction are designated with a1-, a2-, b1- and b2-.
  • the compressed air connections consist of nipples that are suitable for quick coupling and uncoupling of the compressed air lines.
  • the guide plate 17 already mentioned with reference to FIG. 4 is fastened to the bottom on the second walking mechanism member m2; it could also be designed as a skid.
  • the first walking member m1 is also provided on the bottom side with a guide plate 17.1 of the same height as the guide plate 17 or with corresponding skids.
  • FIG. 6 shows that the spray head 13 consists of a solid spray head housing with a central bore 13.3, from which the branch bores 13.4 leading to the individual spray nozzles 12.3a, 12.3b (upper half of FIG.
  • a threaded bore 13.3a is arranged at the outer end of the central bore 13.3.
  • Corresponding threaded bores 13.4a are each provided at the outer ends of the branch channels 13.4, into which the spray nozzles can be screwed tightly with corresponding threaded necks 12.4.
  • the upper nozzles 12.3a, 12.3b are used for free spraying of 150 ° pipe grid lanes 15.3 (Fig. 5); they belong to a four-nozzle spray head, but a six-nozzle or an eight-nozzle spray head could naturally also be provided according to FIG. 3.
  • nozzles The number of nozzles is limited by the performance of the high pressure pumps; with a high-pressure pump of 240 kW, a spray head with eight nozzles forms the upper limit, ie there is no noticeable pressure drop yet.
  • a spray head with the spray nozzles 12.2a, 12.2b is shown, which belongs to a four-nozzle spray head and is used for free spraying of pipe grid streets 15.2 (see FIG. 5), which is an angle of 30 ° to the feed direction v or the longitudinal direction of the pipe aisles. It could also be six or eight jet. So that the different spray heads according to FIGS.
  • the elevator member 23 is in turn connected to the vehicle m0 by means of a quick coupling, for which purpose the elevator member 23 is provided on its vehicle side with a coupling extension 30 and the vehicle m0 is provided on its rear end with a corresponding coupling recess 31.
  • the coupling extension 30 is a coupling prism with a circular segment cross section that covers approximately 3/4 of a circular circumference, the coupling extension 30 being insertable from above into the coupling recess 31 having a corresponding clear cross section.
  • the coupling position is, see Fig. 7, defined and secured by a ball ratchet 32.
  • the elevator member 23 and the vehicle m0 also lie with flat contact surfaces 33 on flat counter surfaces 34, so that the alignment of the spray head 13 with its longitudinal axis to the feed direction v is thus ensured.
  • the coupling extension 30 is clamped to the vertical frame of the elevator member 23 by means of cylinder screws 35.
  • FIG. 23.4 cover-side bearing plate 23.2 is angled upwards and thus forms a bearing leg 23.4.
  • the upper end of the spindle 22 meshes via a bevel gear 36 with a drive bevel gear 37, the shaft 38 of which is mounted in a bearing bush 39 of the vertical plate leg 23.4.
  • An elongated drive crank 40 can be coupled to the outer drive coupling extension 23.3 of the drive bevel gear shaft 38.
  • This consists of the actual crankshaft 40.1 with crank 40.2 and the shaft housing 40.3, the latter of which can be placed with a cup-shaped extension centering on the bearing bush 39, the shaft 40.1 coupling with a corresponding coupling recess 40.11 to the knife-shaped coupling extension 23.3.
  • a drive motor on the cover-side bearing plate 23.2 which is coupled to a drive pinion of the spindle 22 (not shown), in particular via a reduction gear.
  • Suitable direct drive motors for such a remote-controlled rotation of the threaded spindle 22 are, in particular, electrical direct current or multiphase stepper motors.
  • the bottom bearing plate 23.1 is connected to the skid 41 or made in one piece with it.
  • the skid 41 has four sliding foot parts 41.1 and 41.2 on the tube plate - on two fork-like extensions 41.3 (FIG. 6).
  • the threaded spindle 22 is rotatably supported at its two ends in bearing bushes 42, 43, the latter being inserted into corresponding recesses in the bottom and top-side circuit board 23.1, 23.2.
  • the support body 22.1 consists of the traveling nut part 22.1a with an internal thread, a fork part 22.1b for holding the coupling pin 29 and for locking the coupling hook 13.5 and a guide part 22.1c with an approximately T-shaped recess, which comprises the vertical frame of the pulling member 23 and on this longitudinally displaceable: and rotatably guided.
  • the spraying and cleaning process with the described manipulator 1 is particularly effective when working with a spray head which has at least three spray nozzle pairs lying one behind the other in the feed direction v, the spray nozzles of each spray nozzle pair on opposite sides of the spray head for loading each Tube bundle half are arranged, as well as in Fig. 3 in principle of the spray head 13 or has been explained with reference to the spray head 13 of FIG. 6 (the spray head designs of the upper and lower half of FIG. 6 are to be considered supplemented by at least one further pair of spray nozzles).
  • Such a spray head can then be used to carry out a spraying process in which the spray head is advanced by at least one pipe pitch, preferably by two pipe pitches, after each partial spraying process, in which all at least three pairs of nozzles spray in the respective pipe lane position, so that after at least one pair of pipe grid gases, preferably two pairs of pipe grid gases, sludge-releasing and pre-rinsing and, accordingly, at least one adjacent pair of pipe grid streets is subsequently rinsed after the first and each subsequent partial injection process.
  • a spraying process in which the spray head is advanced by at least one pipe pitch, preferably by two pipe pitches, after each partial spraying process, in which all at least three pairs of nozzles spray in the respective pipe lane position, so that after at least one pair of pipe grid gases, preferably two pairs of pipe grid gases, sludge-releasing and pre-rinsing and, accordingly, at least one adjacent pair of pipe grid streets is subsequently rinsed after the first and each subsequent partial injection process.
  • This method can best be carried out with an eight-nozzle spray head, which therefore has four pairs of spray nozzles, because then two pairs of pipe grid alleys can be sludge-detaching and pre-rinsing and the adjacent two pairs of pipe grid alleys can be sprayed and the feed of the manipulator or Spray head between the partial injection processes is two pipe divisions.
  • This feed of two pipe divisions is also the basis of the manipulator shown in FIG. 3 and in FIGS. 6 to 8, because the distance of the heat exchanger pipes in the feed direction v of the two rows of pipes closest to the pipe gases to which the manipulator is clamped is always two pipe divisions ( 2 xt).
  • Manipulator.1 ie its vehicle m0
  • the special advantage of the manipulator is that it is easy to handle: the vehicle m0 can be conveniently brought into its starting position through the open hand hole and coupled with the elevator and the spray head.
  • the stroke of the walking piston c1 or the walking piston system C is set precisely to two pipe divisions. In this way, it can walk intrinsically safely without a complicated control mechanism along the pipe aisle and center itself on the heat-exchanging pipes.
  • a lock is expedient, which only allows the spray nozzles to be acted on when the vehicle m0 is clamped with all four clamping feet.
  • the pneumatic control is very robust. Just as the manipulator can be moved in the feed direction v, the backward movement takes place. It is generally not necessary to turn the vehicle around at the end of the Rohrgasse because the last Rohrgittergassen have no sludge deposits. In principle, however, it would also be possible to provide the two front sides of the vehicle with a spray head, either for alternating loading of both spray heads or for simultaneous loading in order to intensify the spraying and rinsing process. Since practically all operations can be carried out remotely, there is a remarkable saving in Mann-Rem.
  • FIG. 9 shows a top view of the two individual manipulators 1a and 1b of the same design, which are arranged inside the tube alley 2 of a U-tube steam generator on a longitudinal rail 50a, 50b parallel to the longitudinal axis of the tube alley 2 '. can be moved in the feed direction v or -v.
  • the first two rows 3a1, 3a2 and 3b1, 3b2 of the two legs 3a, 3b of the U-tube bundle are shown for the sake of simplicity.
  • the clear width 2.1 of the pipe lane 2, which results between the first two rows of pipes 3a1, 3b1, is not fully available, but is divided by tie rods 51 arranged in the middle of the pipe lane, so that two relatively narrow sub-lanes 2a1 on the pipe lane side 2a and 2b1 on the pipe lane side 2b on both sides of the tie rods 51 or on both sides of a vertical plane of symmetry conceived by the longitudinal axis 2 '.
  • the tubes of the U-tube bundle, denoted as a whole by 3, are individually denoted by 3 '.
  • the tube sheet 4 can be seen in the detail in FIG. 11. of the steam generator housing forming an essentially hollow cylindrical pressure vessel, of which a wall section is indicated at 5 in FIG. 13.
  • Each of the individual manipulators 50a, 50b consists of a vehicle m0, an elevator member 23 (FIG. 10) coupled to it and an injection head 13 mounted on the elevator member 23 in a height-adjustable manner with spray nozzles, generally with 12 and in particular with 12.1a, 12.1b, 12.1 c and 12.1d are designated (see in particular FIGS. 1 and 2).
  • the vehicle m0 is a walking unit consisting of two in the feed axis v there is a moving member that can be moved relative to one another, namely a first m1 on the front and a second m2 on the rear.
  • the front step member m1 of the manipulator 1a has the clamp foot k1a, its rear step member m2 the clamp foot k2a.
  • the corresponding clamping feet in the vehicle m0 of the second manipulator 1b are designated k1b and k2b.
  • the clamp foot pairs k1a, k2a and k1b, k2b are shown in the extended position, in which they lie against the heat exchanger pipes 3 'of the front clamping plane aa and the rear clamping plane bb with the concave foot parts adapted to the heat exchanger pipe contour.
  • the concave parts of the foot are labeled 52.
  • Pneumatic piston-cylinder systems A (stepping elements m1) and B (stepping elements m2) are used to actuate the clamping feet, which are generally designated by k.
  • the abutment for the pneumatic locking of the vehicle m0 or its straddle members m1; m2 on the heat exchanger tubes 3 1 is formed by a vertical leg 50.1 of the guide rails 50a, 50b having an L-shaped profile, against which the vehicle m0 rests with its longitudinal side facing away from the rows of tubes, as will be explained in more detail below.
  • the vehicle m0 furthermore has a feed motor C, which likewise consists of a piston-cylinder system, the cylinder c2 being connected to the stepping element m2 and the piston c1 of the feeding motor C being connected to the front-side stepping element m1 (see in particular FIG. 10).
  • a feed motor C which likewise consists of a piston-cylinder system, the cylinder c2 being connected to the stepping element m2 and the piston c1 of the feeding motor C being connected to the front-side stepping element m1 (see in particular FIG. 10).
  • the piston-cylinder systems A, B and C of the vehicles m0 of the two manipulators 1a, 1b can each be acted upon from two sides; they are explained in detail in the first exemplary embodiment, which is why a detailed description can be dispensed with here.
  • a1, b1 are the tensioning pistons and a3, b3 are the respective cylinders of the piston-cylinder systems A of the clamping plane aa and B of the clamping plane bb.
  • the vehicles m0 can advance in the feed direction v if, when locked in the clamping plane bb, the clamping feet k1a, k1b of the clamping plane aa are loosened, that is to say are retracted " and the feed motor C is acted on in such a way that its piston c1 is extended with the front-end stepping element m1 connected to it is, in this case by two pipe divisions t to a dashed-indicated clamping plane a1-a1.Now the clamping feet k1a of the manipulator 1a or k1b of the manipulator 1b are extended and thus the walking member m1 is locked, after which the clamping feet k2a, k2b of the clamping plane bb of the straddle members
  • both manipulators 1a, 1b are advanced at the same time, so that they work in the respective spraying position in the spraying process like the manipulator according to the first embodiment with the double spray head.
  • Each of the manipulators 1a, 1b has the already mentioned elevator element 23 on the spray head side of the vehicle m0.
  • This consists of a vertical frame with bottom and top bearing plates 23.1, 23.2, a vertical spindle 22 rotatably mounted on the bearing plates, a support body 22.1 with a traveling nut part 22.1a mounted on the spindle so as to be non-rotatable and adjustable in height, and a rotary drive assigned to one of the spindle ends, which is denoted as a whole by Dr.
  • the spray head 13 is suspended with a hinge projection 13.6 on a pin 22.11 of the support body 22.1; it is positively supported with its joint projection on corresponding support surfaces of the support body 22.1.
  • This mounting of the spray head 13 again serves for quick assembly and disassembly.
  • the spray head 13 can thus be adjusted in the manner of an elevator upwards in the direction of the arrow h + or downwards in the direction of the arrow h-, so that an adaptation to different levels of mud on the tube sheet can be carried out.
  • These mountains of mud are generally sprayed progressively from top to bottom.
  • the injection pressure (compare first embodiment example) is in the range between 100 and 220 bar, preferably around 200 bar.
  • spray heads 13 In general, three different types of spray heads 13 are used: The one shown with 90 ° nozzles 12.1, which spray into the pipe lattice lanes in the direction of 15.1, and furthermore 30 ° and 15 0 0 spray heads, which in the with 15.2 or 15.3 Spray the pipe lattice lanes marked and indicated by dashed lines.
  • the quick coupling between the elevator member 23 and the vehicle m0 takes place via a dovetail-shaped projection 21.1 on the vertical frame part 23.0 of the elevator member 23 and a corresponding dovetail-shaped groove on the rear forehead area of the stepping element m2.
  • the rotary drive Dr has an angular gear formed from bevel gears, and a long drive crank for remote adjustment can be coupled to the shaft of the drive bevel gear mounted in the vertical plate 23.4 via its coupling pin 23.3.
  • a drive motor attached to the frame of the elevator member 23 could also be provided.
  • a guide arm 55 which is fixed pointing in the feed direction on the rear stepping element m2, has an approximately T-shaped cross-section and engages in a corresponding T-shaped longitudinal groove of the front stepping element m1, which is likewise precisely guided in this way, without it is itself in engagement with the longitudinal spring 5.3.
  • the vehicle m0 of the manipulator 1a, 1b is in the space spanned by the two L-legs, the vertical leg 50.1 and the horizontal leg 50.2, which is fastened in an adjusted manner on the tube sheet 4 and is limited in width by the nearest row of tubes 3a1 and 3b1 inserted with an approximately rectangular cross-section lower base body 56.
  • This base body 56 belongs to the rear step member m2. As already explained, this base body 56 is generally on the bottom side and / or on its on the vertical L-leg 50.1 on the adjacent side with projections or recesses with which it is slidably guided in the feed direction v on corresponding recesses or projections of the horizontal and / or vertical L-leg 50.2, 50.1 of the guide rail, generally designated 50.
  • this guide exists for the base body 56 and thus for the manipulator 1a, 1b including the elevator member 23 in the guide engagement between the already mentioned longitudinal spring 53 and the side flanks of the bottom side in cross section, as does the longitudinal spring T-shaped longitudinal groove 54.
  • the base body 56 also overlaps with a projection 57 arranged in the upper region of its one side flank, the upper end of the vertical L-leg 50.1 and is trapezoidally toothed at this upper end in the manner of a tongue and groove guide and slidably guided in the feed direction.
  • a guide rail 50a, .50b approximately L-shaped in cross section, is installed within each of the two halves of pipe lanes 2a1, 2b1 to form a double rail, the vertical L-legs 50.1 of which face one another.
  • the two similarly constructed individual vehicles m0 of the manipulators 1a, 1b one is slidably guided on a single guide rail in the feed direction v (or -v).
  • the clamping feet k of the two individual vehicles m0 each point away from the vertical center plane (axis 2 1 ) laterally outwards to the adjacent tube row 3a1 or 3b1 of the heat exchanger and can be extended in this direction.
  • the nozzles 12 of the spray heads 13 each assigned to a single vehicle m0 also point away from the center plane and can be aligned with the pipe gaps 15.1 (and with modified nozzle heads with the pipe gaps 15.2, 15.3) of the two tube bundle halves 3a, 3b.
  • the two guide rails 50a, 50b are combined in a twin arrangement at one end U2 to form an elongated U-rail body 58 in a plan view.
  • the two guide rails 50a, 50b have, in the merging area, on the outer sides of their horizontal L-legs 50.2 facing away from one another with axially parallel fitting surfaces 59.1 and stop cams 59 provided with oblique clamping surfaces 59.2.
  • the distance between the clamping surfaces 59.2 from one another exceeds the pipe aisle width 2.1 (cf. FIG. 9).
  • the two guide rails 50a, 50b are also fastened in the merging area with their vertical L-legs 50.1 to a rectangular connecting web 60 (see also FIG. 14).
  • This connecting web 60 serves as a bearing for a tensioning device 61.
  • This has a in the connecting web 60 in a corresponding threaded bore mounted screwing and unscrewing adjusting screw 61.1 with pressure piece 61.2 on its free end.
  • the U-rail body 58 which bypassing the tie rods 51, can be inserted into the Rohrgasse 2 from the right end and abuts the end tubes of the first two rows of pipes 3a1, 3b1 with its stop cams 59.2 by tightening the adjusting spindle 61.1 on the heat exchanger wall 5 with the pressure piece 61.2 on the one hand and by means of the inclined surfaces 59.2 on the end pipes on the other hand and positioned in the desired relation to the rows of pipes.
  • the pressure piece 61.2 is spherically adjustable at the free end of the spindle 61.1 and has a spherical contact surface 61.21.
  • a corresponding joint socket 62 in the interior of the pressure piece 61.2 engages around a ball 63 at the free end of the spindle 61.1.
  • the threaded shaft of the spindle 61.1 is followed by a knurled or corded handle cylinder 64, so that the spindle 61.1 can be easily adjusted by hand.
  • Coupling plate 66 can be inserted with its adjusting wedge 66.1 between the two guide rails 50a, 50b, as shown, and tightened by means of set screws 66.2 on the threaded blocks 65 so that the guide rails 50a, 50b have at least one second pair of mating surfaces 67, which is near the open end of the U-rail body sits on the sides of the horizontal L-legs 50.2 facing away from one another, with heat exchanger tubes 3 'which comes into contact with the first row of tubes 3a1 or 3b1 lying against tube alley 2.
  • the position of the U-rail body 58 with respect to the adjacent first rows of pipes 3a1, 3b1 is fixed without play.
  • the defined horizontal position is given by the fact that the cylinder screws 680 screwed into the underside of the horizontal L-legs 50.2 are ground to a uniform dimension.
  • the U-rail body 58 thus lies in a defined manner on the flat tube sheet. Two pairs of mating surfaces are sufficient to align the U-rail body, namely 67.67 at the left end and 59.1.59.1 at the right end.
  • the clutch plate 66 is provided with a bow handle 66.3 for better handling.
  • the handling of the rail system is further facilitated if the individual guide rails 50a, 50b are cross-divided into at least two rail parts and approximately on top have a rail joint 68 along their half length.
  • recesses for receiving coupling plates 69 and 70 are provided on the bottom and sides of both rail halves, which are screwed and pinned to the rail ends.
  • the T-legs are omitted from the T-profile of the longitudinal springs 53 at least over a vehicle length in the attachment area near the open end U1 of the U-rail body (its closed end is designated U2) on the length 53.1 (Fig. 13), so that the vehicles m0 with their cross-sectionally T-shaped longitudinal groove 54 can be mounted on this longitudinal spring 53 and can reach behind the T-profile of the longitudinal spring 53 when pushed further.
  • the manipulators 1a, 1b are rerailed on when the U-rail body 58 is adjusted at its end U1 by means of the coupling plate 66, through a corresponding hand hole.
  • the manipulators 1a, 1b are moved back to their starting position in the area U1 and disassembled. Accordingly, the U-rails Assemble the body in reverse order as described and / remove the hand holes from the Rohrgasse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manipulator (AREA)
  • Cleaning In General (AREA)
EP83100498A 1982-01-25 1983-01-20 Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur Expired EP0084867B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19823202248 DE3202248A1 (de) 1982-01-25 1982-01-25 Rohrgassen-manipulator, spritzkopf und zugehoeriges spritzverfahren zum hochdruck-abschlaemmen von waermetauschern
DE3202248 1982-01-25
DE19833301536 DE3301536A1 (de) 1983-01-19 1983-01-19 Rohrgassen-manipulator
DE3301536 1983-01-19

Publications (2)

Publication Number Publication Date
EP0084867A1 true EP0084867A1 (fr) 1983-08-03
EP0084867B1 EP0084867B1 (fr) 1985-06-19

Family

ID=25799067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100498A Expired EP0084867B1 (fr) 1982-01-25 1983-01-20 Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur

Country Status (5)

Country Link
EP (1) EP0084867B1 (fr)
JP (1) JPS59500065A (fr)
DE (1) DE3360268D1 (fr)
ES (1) ES8504379A1 (fr)
WO (1) WO1983002657A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169420A1 (fr) * 1984-07-25 1986-01-29 Westinghouse Electric Corporation Méthode et appareil pour éliminer les boues résiduaires d'un générateur de vapeur nucléaire
FR2573179A1 (fr) * 1984-11-13 1986-05-16 Framatome Sa Dispositif d'enlevement des boues pour installation de nettoyage de la plaque tubulaire d'un generateur de vapeur et installation comportant un tel dispositif
FR2577035A1 (fr) * 1985-02-05 1986-08-08 Thome Emmanuel Outil destine a la destruction des boues formees dans les generateurs de vapeur des reacteurs nucleaires a eau pressurisee
FR2578957A1 (fr) * 1985-03-12 1986-09-19 Thome Paul Amelioration aux generateurs de vapeur des reacteurs nucleaires
EP0195994A2 (fr) * 1985-03-29 1986-10-01 Siemens Aktiengesellschaft Manipulateur pour le passage entre tubes pour l'enlèvement de boues à haute pression dans un échangeur de chaleur
EP0255503A2 (fr) * 1986-07-29 1988-02-03 Smet Jet N.V. Dispositif pour nettoyer un générateur de vapeur avec des jets d'eau
BE1000357A4 (nl) * 1987-02-26 1988-11-08 Innus Ind Nuclear Service Inrichting voor het reinigen van een warmtewisselaar.
EP0459597A1 (fr) * 1987-03-18 1991-12-04 Electric Power Research Institute, Inc Lance flexible pour l'élimination des dépôts d'impuretés dans le côté secondaire d'un générateur de vapeur
FR2666679A1 (fr) * 1990-09-10 1992-03-13 Framatome Sa Procede et dispositif d'extraction d'une canne chauffante presentant des deformations, d'une enveloppe de pressuriseur d'un reacteur nucleaire a eau sous pression.
FR2682215A1 (fr) * 1991-10-07 1993-04-09 Framatome Sa Dispositif porteur mobile pour realiser des interventions dans la partie secondaire d'un generateur de vapeur d'un reacteur nucleaire a eau sous pression.
EP0696719A1 (fr) * 1994-08-12 1996-02-14 Framatome Dispositif de nettoyage par jet de liquide d'une plaque tubulaire d'un échangeur de chaleur et utilisation
WO1996028692A1 (fr) * 1995-03-15 1996-09-19 Siemens Aktiengesellschaft Dispositif et technique pour traiter ou inspecter le fond tubulaire d'un generateur de vapeur
FR2738053A1 (fr) * 1995-08-25 1997-02-28 Sra Savac Installation pour le nettoyage a la lance a eau d'un generateur de vapeur et son procede de mise en oeuvre
US6192904B1 (en) 1995-03-15 2001-02-27 Siemens Aktiengesellschaft Flexible lance for machining or inspecting a tube bottom of a steam generator
EP1124092A2 (fr) 2000-02-10 2001-08-16 Siemens Aktiengesellschaft Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
WO2011133221A3 (fr) * 2010-04-20 2011-12-08 Savannah River Nuclear Solutions, Llc Plateforme robotique pour déplacement sur un réseau de canalisations verticales
US8470073B2 (en) 2010-09-15 2013-06-25 Savannah River Nuclear Solutions, Llc Apparatus and process for separating hydrogen isotopes

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235999A (ja) * 1984-05-09 1985-11-22 Babcock Hitachi Kk 伝熱面清掃装置
US4700662A (en) * 1986-06-13 1987-10-20 The Babcock & Wilcox Company Sludge lance wand
US6672257B1 (en) 1994-05-06 2004-01-06 Foster-Miller, Inc. Upper bundle steam generator cleaning system and method
US5564371A (en) 1994-05-06 1996-10-15 Foster Miller, Inc. Upper bundle steam generator cleaning system and method
NL1024113C2 (nl) * 2003-08-14 2005-02-15 Peinemann Equipment Bv Lansinrichting met reciprocerende aandrijving.
DE102015118615B3 (de) * 2015-10-30 2016-09-01 Areva Gmbh Flexible Lanze zum Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018345A (en) * 1975-11-18 1977-04-19 Combustion Engineering, Inc. Surface traversing apparatus
FR2352269A1 (fr) * 1976-05-17 1977-12-16 Westinghouse Electric Corp Systeme pour eliminer les depots de boues dans les generateurs a vapeur
FR2445487A1 (fr) * 1978-12-28 1980-07-25 Westinghouse Electric Corp Appareil d'attaque a la lance de boues d'un generateur de vapeur
FR2487043A1 (fr) * 1980-07-18 1982-01-22 Framatome Sa Dispositif de decolmatage et de recuperation de boues deposees sur la plaque tubulaire d'un generateur de vapeur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018345A (en) * 1975-11-18 1977-04-19 Combustion Engineering, Inc. Surface traversing apparatus
FR2352269A1 (fr) * 1976-05-17 1977-12-16 Westinghouse Electric Corp Systeme pour eliminer les depots de boues dans les generateurs a vapeur
FR2445487A1 (fr) * 1978-12-28 1980-07-25 Westinghouse Electric Corp Appareil d'attaque a la lance de boues d'un generateur de vapeur
FR2487043A1 (fr) * 1980-07-18 1982-01-22 Framatome Sa Dispositif de decolmatage et de recuperation de boues deposees sur la plaque tubulaire d'un generateur de vapeur

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169420A1 (fr) * 1984-07-25 1986-01-29 Westinghouse Electric Corporation Méthode et appareil pour éliminer les boues résiduaires d'un générateur de vapeur nucléaire
FR2573179A1 (fr) * 1984-11-13 1986-05-16 Framatome Sa Dispositif d'enlevement des boues pour installation de nettoyage de la plaque tubulaire d'un generateur de vapeur et installation comportant un tel dispositif
EP0186536A1 (fr) * 1984-11-13 1986-07-02 Framatome Dispositif d'enlèvement des boues pour installation de nettoyage de la plaque tubulaire d'un générateur de vapeur et générateur de vapeur comportant un tel dispositif
FR2577035A1 (fr) * 1985-02-05 1986-08-08 Thome Emmanuel Outil destine a la destruction des boues formees dans les generateurs de vapeur des reacteurs nucleaires a eau pressurisee
FR2578957A1 (fr) * 1985-03-12 1986-09-19 Thome Paul Amelioration aux generateurs de vapeur des reacteurs nucleaires
US4640346A (en) * 1985-03-29 1987-02-03 Kraftwerk Union Aktiengesellschaft Tube lane manipulator for the high-pressure blow-down of heat exchangers
EP0195994A2 (fr) * 1985-03-29 1986-10-01 Siemens Aktiengesellschaft Manipulateur pour le passage entre tubes pour l'enlèvement de boues à haute pression dans un échangeur de chaleur
EP0195994A3 (fr) * 1985-03-29 1987-02-04 Siemens Aktiengesellschaft Manipulateur pour le passage entre tubes pour l'enlèvement de boues à haute pression dans un échangeur de chaleur
EP0255503A2 (fr) * 1986-07-29 1988-02-03 Smet Jet N.V. Dispositif pour nettoyer un générateur de vapeur avec des jets d'eau
EP0255503A3 (fr) * 1986-07-29 1988-03-30 Smet Jet N.V. Dispositif pour nettoyer un générateur de vapeur avec des jets d'eau
US4887555A (en) * 1986-07-29 1989-12-19 Carlo Smet Arrangement for cleaning a steam generator with a water jet
WO1990007679A1 (fr) * 1986-07-29 1990-07-12 Carlo Smet Agencement de nettoyage d'un generateur de vapeur au moyen d'un jet d'eau
BE1000357A4 (nl) * 1987-02-26 1988-11-08 Innus Ind Nuclear Service Inrichting voor het reinigen van een warmtewisselaar.
EP0459597A1 (fr) * 1987-03-18 1991-12-04 Electric Power Research Institute, Inc Lance flexible pour l'élimination des dépôts d'impuretés dans le côté secondaire d'un générateur de vapeur
FR2666679A1 (fr) * 1990-09-10 1992-03-13 Framatome Sa Procede et dispositif d'extraction d'une canne chauffante presentant des deformations, d'une enveloppe de pressuriseur d'un reacteur nucleaire a eau sous pression.
EP0475799A1 (fr) * 1990-09-10 1992-03-18 Framatome Procédé et dispositif d'extraction d'une canne chauffante présentant des déformations,d'une enveloppe de pressuriseur d'un réacteur nucléaire à eau sous pression
US5139732A (en) * 1990-09-10 1992-08-18 Framatome Process and a device for extracting a heating rod having deformations from a pressurizer casing of a pressurized-water nuclear reactor
FR2682215A1 (fr) * 1991-10-07 1993-04-09 Framatome Sa Dispositif porteur mobile pour realiser des interventions dans la partie secondaire d'un generateur de vapeur d'un reacteur nucleaire a eau sous pression.
EP0537039A1 (fr) * 1991-10-07 1993-04-14 Framatome Dispositif porteur mobile pour réaliser des interventions dans la partie secondaire d'un générateur de vapeur d'un réacteur nucléaire à eau sous pression
EP0696719A1 (fr) * 1994-08-12 1996-02-14 Framatome Dispositif de nettoyage par jet de liquide d'une plaque tubulaire d'un échangeur de chaleur et utilisation
FR2723634A1 (fr) * 1994-08-12 1996-02-16 Framatome Sa Dispositif de nettoyage par jet de liquide d'une plaque tubulaire d'un echangeur de chaleur et utilisation.
WO1996028692A1 (fr) * 1995-03-15 1996-09-19 Siemens Aktiengesellschaft Dispositif et technique pour traiter ou inspecter le fond tubulaire d'un generateur de vapeur
US6192904B1 (en) 1995-03-15 2001-02-27 Siemens Aktiengesellschaft Flexible lance for machining or inspecting a tube bottom of a steam generator
FR2738053A1 (fr) * 1995-08-25 1997-02-28 Sra Savac Installation pour le nettoyage a la lance a eau d'un generateur de vapeur et son procede de mise en oeuvre
EP1124092A2 (fr) 2000-02-10 2001-08-16 Siemens Aktiengesellschaft Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
WO2011133221A3 (fr) * 2010-04-20 2011-12-08 Savannah River Nuclear Solutions, Llc Plateforme robotique pour déplacement sur un réseau de canalisations verticales
US8944192B2 (en) 2010-04-20 2015-02-03 Savannah River Nuclear Solutions, Llc Robotic platform for traveling on vertical piping network
US8470073B2 (en) 2010-09-15 2013-06-25 Savannah River Nuclear Solutions, Llc Apparatus and process for separating hydrogen isotopes

Also Published As

Publication number Publication date
DE3360268D1 (en) 1985-07-25
JPS59500065A (ja) 1984-01-12
WO1983002657A1 (fr) 1983-08-04
ES528140A0 (es) 1985-04-01
EP0084867B1 (fr) 1985-06-19
ES8504379A1 (es) 1985-04-01

Similar Documents

Publication Publication Date Title
EP0084867B1 (fr) Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur
DE3202248A1 (de) Rohrgassen-manipulator, spritzkopf und zugehoeriges spritzverfahren zum hochdruck-abschlaemmen von waermetauschern
EP0162309B1 (fr) Dispositif de nettoyage d'un faisceau de tubes contaminés par radioactivité
DE2751600C2 (de) Vorrichtung zum Reinigen der Trommel eines Rotations-Wärmetauschers
DE102008016539A1 (de) Reinigungsvorrichtung für Lukos oder dergleichen Wärmetauscher
DE102011008404A1 (de) Reinigungsvorrichtung für kleine Wärmetauscher
DE3141516C2 (de) Hochdruck-Reinigungsvorrichtung für Wasserdrucke von etwa 300 bis 500 bar und darüber
DE3825533A1 (de) Verfahren und vorrichtung zur innenbehandlung metallener rohre
DE102007061049B4 (de) Verfahren zur Reinigung eines Luftkühlers und Vorrichtung zur Durchführung des Verfahrens sowie hierfür eingerichteter Luftkühler
DE3611424C2 (de) Vorrichtung zur selektierten Zuführung von Reinigungskörpern in Kühlwasser führende Rohre von Wärmetauschern
DE3301536A1 (de) Rohrgassen-manipulator
DE3613535C2 (de) Vorrichtung zum Erwärmen oder Abkühlen eines Fluids
DE2517333C3 (de) Hochdruck-Wasserstrahlreinigungsvorrichtung
DE3116083A1 (de) "vorrichtung zum einschweissen von rohren in rohrboeden"
DE3013919A1 (de) Vorrichtung zum beizen
DE818959C (de) Roehrenwaermeaustauscher
DE2458159B2 (de) Düsenbalken für eine Musterspitz druckvorrichtung sowie Verfahren zum Herstellen des Farbaufbringteils eines Düsenbalkens
DE3439653C1 (de) Vorrichtung zum Verbinden eines Bohrstranges mit einem Rohr od.dgl.
DE4009707A1 (de) Vorrichtung zur partiellen kuehlung zum thermischen richten von gewalzten sonderprofilen
DE102018004298A1 (de) Reinigungsvorrichtung
EP2383047B9 (fr) Dispositif de buse
DE102013007062A1 (de) Düsen für eine Reinigungsvorrichtung
DE69927504T2 (de) Spritzreiniger für die innere oberfläche einer rohrleitung
DE3733131A1 (de) Drehbarer duesenbalken einer hydraulischen entzunderungsanlage
DE2651940B2 (de) Doppelrohr-Wärmeübertrager

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19830629

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 3360268

Country of ref document: DE

Date of ref document: 19850725

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890118

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890120

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890125

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890126

Year of fee payment: 7

ITTA It: last paid annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19900131

BERE Be: lapsed

Owner name: KRAFTWERK UNION A.G.

Effective date: 19900131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19900928

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83100498.1

Effective date: 19901106

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970317

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970429

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980121

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990801