EP0301146B1 - Orientierbare Leuchtvorrichtung für ein radioaktives Material enthaltenden Wassertank - Google Patents

Orientierbare Leuchtvorrichtung für ein radioaktives Material enthaltenden Wassertank Download PDF

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Publication number
EP0301146B1
EP0301146B1 EP87401754A EP87401754A EP0301146B1 EP 0301146 B1 EP0301146 B1 EP 0301146B1 EP 87401754 A EP87401754 A EP 87401754A EP 87401754 A EP87401754 A EP 87401754A EP 0301146 B1 EP0301146 B1 EP 0301146B1
Authority
EP
European Patent Office
Prior art keywords
box
axis
arm
floodlight
guide
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.)
Expired - Lifetime
Application number
EP87401754A
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English (en)
French (fr)
Other versions
EP0301146A1 (de
Inventor
Jean Denis
Lucien Leproust
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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
Application filed by Electricite de France SA filed Critical Electricite de France SA
Publication of EP0301146A1 publication Critical patent/EP0301146A1/de
Application granted granted Critical
Publication of EP0301146B1 publication Critical patent/EP0301146B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/401—Lighting for industrial, commercial, recreational or military use for swimming pools

Definitions

  • the invention relates to an adjustable lighting device intended to equip a swimming pool containing radioactive materials.
  • the device according to the invention is intended to allow the lighting of nuclear fuel assemblies during their handling under water, in the pool of a pressurized water nuclear reactor.
  • this lighting allows remote viewing of the insertion of the assembly on the centering pins of the lower plate of the heart.
  • the orientable lighting device according to the invention can be used in all cases where the handling of radioactive materials in a swimming pool requires efficient lighting.
  • the device according to the invention can also be fitted to a storage pool in which assemblies of irradiated nuclear fuel stay, before their reprocessing.
  • the pools of pressurized water nuclear reactors are equipped with a set of fixed projectors distributed around the periphery of the pool. These projectors are immersed and emit beams of diverging light in determined directions once and for all.
  • Document US-A-3 816 740 describes a comparable lighting system but in which the submerged spotlights are movable on a vertical rail and orientable around a horizontal axis.
  • the main object of the invention is a swimming pool lighting device of a new type which makes it possible to solve these various problems thanks to the use of a floating projector and to the orientable and substantially parallel nature of the beam of light emitted by the projector. .
  • the segments are preferably hinged together so as to define a maximum angle less than about 160 °.
  • an anchoring piece capable of being fixed on the edge of the swimming pool supports the vertical guide by means of an articulation allowing the guide to be oriented around a vertical axis.
  • security is improved by virtue of various arrangements which give the elements constituting the device a captive character.
  • the housing is preferably surrounded by a removable floating part constituted by a hollow and sealed part filled with foam ensuring buoyancy even in the event of piercing of the part.
  • the transparent lower partition of the housing preferably comprises a glass plate coated with a plastic film on its lower face. If the glass breaks, the plastic material lining its underside prevents the pieces of glass from falling into the pool.
  • the projector comprises a lamp located at the focus of a parabolic mirror.
  • the replacement of the projector lamp and, more generally, any intervention inside the housing can be facilitated by the presence of a removable cover located above the level of the water contained in the pool and supporting the projector and its means of orientation.
  • FIG 1 we recognize a part of a handling pool of a pressurized water nuclear reactor. More specifically, there is shown in section in Figure 1 a wall 10 defining one of the edges 12 of the pool filled with water 14 to a level N.
  • this swimming pool is equipped with several orientable lighting devices such as the device 16 in FIG. 1.
  • a pressurized water reactor handling swimming pool will be equipped for example with three devices of this type. .
  • each of the orientable lighting devices 16 comprises a floating lighting assembly 18 mounted at one end of an articulated arm 20.
  • the opposite end of these arms 20 is mounted on a guide 22 supported by an anchor 24 fixed to the edge 12 of the pool.
  • the lighting assembly 18 will now be described in more detail with reference to FIG. 2.
  • This assembly 18 comprises a sealed housing 26 in which are housed a projector 23 and its orientation means 25.
  • This housing 26 comprises a cylindrical wall 27, of vertical axis, and a bottom wall mainly comprising a glass plate horizontal 28 letting the light rays pass.
  • This plate 28 is fixed in leaktight manner to the wall 27 by means of a clamp 30 compressing a seal 31.
  • the underside of the latter is coated with a plastic film 32.
  • the housing 26 is closed by a removable horizontal cover 34 held in place on the end of the wall 27 of the housing by a threaded crown 36 compressing a seal 37.
  • the buoyancy of the assembly 26 is obtained by means of a float detachably attached to the housing 26.
  • This float is constituted by a hollow annular piece 38 encircling the housing 26 approximately halfway up and on which the latter rests by a crown or by a certain number of lugs 40 distributed over the circumference of the wall 27.
  • the housing 26 is detachably fixed on the floating part 38 by bolts 42.
  • the part 38 is a hollow piece of sheet steel having in cross section an approximately rectangular shape. This part 38 is filled with floating foam 44. Thus, the floating character of the assembly 18 is ensured even in the case where the part 38 comes to be pierced as a result of a shock during handling.
  • a projector 23 emitting a high-power light beam (approximately 8,000,000 Candelas for example) and substantially parallel is placed inside the housing 26.
  • this projector 23 includes a lamp 46 such as an arc lamp, placed at the focus of a parabolic mirror 48. It is the whole of the lamp 46 and parabolic mirror 48 which gives the projector a power of 8,000,000 Candelas.
  • the assembly is placed in the housing 26 so as to emit a parallel light beam F (FIG. 1) oriented generally downward through the glass plate 28.
  • the projector 23 constituted by the lamp 46 and by the parabolic mirror 48 is arranged inside the housing 26 so that it can be oriented at will around two orthogonal axes. between them. In FIG. 2, these axes are designated respectively by the references xx ′ and yy ′.
  • the mounting of the projector in the housing 26 is carried out as follows.
  • a support 50 fixed to the cover 34 of the housing supports both a first geared motor 52 and a crown 54 surrounding the peripheral edge of the mirror 48. More specifically, the crown 54 is pivotally received on the support 50 by the intermediate of two pivots of horizontal axis xx ′.
  • the output shaft of the geared motor 52 whose axis is parallel to the axis xx ′, carries an eccentric on which is articulated one end of a link 56.
  • the opposite end of the link 56 is articulated on a lever 58, the other end of which is fixed to the crown 54 near the axis xx ′.
  • the actuation of the geared motor 52 has the effect of rotating the crown 54 around the axis xx ′.
  • the crown 54 itself pivotally supports the ends of a fork 60 disposed outside the mirror 48, according to one of the planes of symmetry thereof.
  • the pivoting mounting of the fork 60 on the crown 54 is obtained by two pivots of geometric axis yy ′ perpendicular to the horizontal axis xx ′.
  • the central part of the fork 60 supports the mirror 48 and the base 47 of the lamp 46.
  • the orientation of the projector 23 around the axis yy ′ is controlled by means comparable to those controlling the orientation of the crown 54 (and therefore of the projector 23 supported by the latter around the axis xx ′).
  • These means comprise a second geared motor 62 mounted on a support 64 fixed on the crown 54.
  • the output shaft of the geared motor 62 drives an end 65 through an eccentric a link 66 whose opposite end is articulated on a lever 68 secured to the fork 60 by its other end located near the axis yy ′.
  • the control of the geared motors 52 and 62 allows the projector 23 formed by the lamp 46 and by the mirror 48 to be oriented at will around the two orthogonal axes xx ′ and yy ′ to the inside of housing 26.
  • the assembly is supported by the cover 34 of the housing, so that the disassembly of this cover, which is constantly emerged, allows to intervene without difficulty inside the housing 26 and in particular to replace the lamp 46 .
  • a first type of control is carried out by means of a power cable 70 passing through the cover 34 of the housing.
  • an indicator light 27 placed on the cover 34 of the housing makes it possible to control the operation of the projector.
  • the housing 26 of the lighting assembly can be equipped with handles 74 (FIG. 1).
  • the housing 26 also has on its cylindrical wall 27, above the float 38, an anchoring piece 82 the end of which is articulated by a horizontal axis 84 at one of the ends of the arm 20.
  • the articulated arm 20 consists of two segments 76 and 78 of equal length, these segments being hinged together by a horizontal axis 80 parallel to the axis 84 through which the assembly lighting 18 is articulated on segment 76.
  • the opposite end of segment 78 is also articulated in a sliding manner on guide 22, in a manner which allows pivoting of segment 78 around an axis parallel to axes 80 and 84.
  • These three pivot axes are perpendicular to a vertical plane containing the two segments of the arm 20.
  • the arm 20 is also floating. This is obtained for example by making the segments 76 and 78 of sheet steel to give them a hollow structure.
  • each of the two segments 76 and 78 comprises a stop limiting the angle ⁇ 1 formed between these segments to a maximum value of approximately 160 °.
  • the two segments 76 and 78 thus permanently form an open V corresponding to their equilibrium position resulting from the thrust some water. This position is shown in solid lines in FIG. 1.
  • control of the supply of the lamp 46 and of the motors 52 and 62 of the lighting assembly 18 is made by a cable 70, this is fixed to each of the segments 76 and 78 of the arm 20 as illustrated in FIG. 1.
  • the opposite end of the cable 70 is connected to an appropriate control assembly 86.
  • the end of the segment 78 received in the guide 22 comprises a ball joint 78a situated at the end of a flat part 78b situated in the vertical plane containing the arm 20.
  • the guide 22 essentially consists of a cylindrical tube with a vertical axis inside which the ball 78a is received. Over most of its height, the tube 22 is pierced with a slot 22a extending vertically along a generatrix and through which the flat part 78b of the segment 78 passes.
  • the downward movement of the segment 78 allowed by the ball joint 78a is not limited.
  • the angle ⁇ 2 (FIG. 1) formed between the segment 78 and the vertical axis of the guide tube 22 can take any value.
  • the guide tube 22 In locations diametrically opposite with respect to the slot 22a, the guide tube 22 carries two ears 88 by which it is pivotally supported by the anchoring piece 24 fixed on the edge 12 of the swimming pool.
  • the anchoring piece 24 itself comprises two ears 90 on which the ears 88 of the guide tube 22 rest, these ears being traversed by axes 92 allowing pivoting of the guide tube 22 about a vertical axis relative to the anchoring part 90.
  • the latter is itself fixed by any appropriate means to the edge 12 of the swimming pool, so as to support the orientable lighting device 16.
  • the guide tube 22 is provided at its upper end which emerges with a handling handle 94.
  • the device 16 according to the invention is designed so as to erase automatically.
  • the articulated arm then automatically returns to its initial deployment position under the effect of the pressure of the water exerted on the segments 76 and 78 of the arm. This automatic redeployment is facilitated by the existence of waves on the surface of the pool.
  • the impact between the handling device and the lighting assembly 18 comprises a horizontal component perpendicular to the vertical plane containing the arm 20, the torque thus exerted on the assembly 18, the arm 20 and the guide 22 leads to pivot the latter around the vertical axis defined by the axes 92.
  • the device is then returned manually to its working position by acting on the handle 94.
  • FIGS. 5 and 6 a variant of the guide 22 is shown, designated in this case by the reference 22 ′.
  • the rigid tube is replaced by a flexible cable 22′a, the two ends of which are suspended from the two ends of a horizontal arm 22′b parallel to the edge 12 of the swimming pool.
  • the cable passes through two hooks formed at the ends of a counterweight 22′c, the length of which is approximately the same as that of the arm 22′b.
  • This counterweight 22′c ensures the tension of two vertical strands of the cable 22′a, on which slide two hooks mounted at the ends of a cylindrical part 78′a, of horizontal axis, formed at the end of the segment 78 ′ of the arm 20.
  • the arm 22′b is itself fixed to the end of a horizontal piece 22′b oriented perpendicular to the edge 12 of the swimming pool.
  • the other end of the part 22′b is detachably fixed on the support 24 ′ mounted on the edge of the pool.
  • FIGS. 5 and 6 ensures an operation similar to that of the embodiment previously described with reference to FIGS. 3 and 4.
  • any variation in the water level is compensated by a sliding of the portion 78′a of the segment along the vertical strands of the cable 22′a.
  • this part 78′a by the strands of the cable allows the articulated arm to be folded and pivoted about a vertical axis intermediate between these strands, under the effect of a horizontal impact on the assembly d 'lighting 18.
  • the return of the articulated arm to its equilibrium position then takes place automatically, under the effect of the tension of the cable 22′a provided by the counterweight 22′c.
  • the device according to the invention also has many advantages resulting from its buoyancy.
  • the sealing problems are limited to the lower part of the housing 26 and, more specifically, to the fixing of the glass plate 28 to the lower part of the wall 27.
  • the device is relatively light and can be handled by one person without the help of an overhead crane.
  • the articulated arm can be made up of three segments, in particular in the case where the distance between the edge of the swimming pool and the point of installation of the lighting assembly is too great.
  • the floating character of the housing of the lighting assembly can also result from the housing itself and not from an annular part surrounding it.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (9)

  1. Schwenkbare Beleuchtungsvorrichtung (16) für ein Becken, enthaltend
    - eine vertikale Führung (22; 22'), die geeignet ist, am Rand (12) des Beckens angebracht zu werden,
    - ein abgedichtetes Gehäuse (26) mit einem durchsichtigen Boden (28),
    - einen im genannten Gehäuse (26) befindlichen Scheinwerfer (23), in der Lage, ein Lichtbündel (F) durch den genannten durchsichtigen Boden (28) abzustrahlen,
    - Mittel (25) zum Schwenken des Scheinwerfers (23) um eine Achse,
    Vorrichtung, dadurch gekennzeichnet. daß das Gehäuse (26) schwimmt und der Scheinwerfer (23) ein im wesentlichen paralleles Lichtbündel (F) abstrahlt, wobei sich die genannten Mittel (25) zum Schwenken des Scheinwerfers im Gehäuse (26) befinden und eine Schwenkung um zwei zueinander rechtwinklige Achsen (xx', yy') ermöglichen, und dadurch, daß die Beleuchtungsvorrichtung darüber hinaus enthält :
    - einen schwimmenden Arm (20), bestehend aus mindestens zwei untereinander gelenkig und um eine erste Achse (80), die senkrecht auf einer vertikalen, den genannten Arm enthaltenden Ebene steht, ausschwenkbar verbundenen Abschnitten (76, 78), wobei ein erstes Ende des Armes (20) an der Fuhrung (22 ; 22') derart angebracht ist, daß er sich in einer durch die Führung festgelegten vertikalen Richtung verschieben und um eine zweite, zur genannten Ebene senkrechte Achse schwenken kann, wobei das Gehäuse (26) an einem zweiten Ende des Armes (20) um eine dritte, zur genannten Ebene senkrechte Achse (84) schwenkend gelenkig angebracht ist
  2. Vorrichtung gemäß Patentanspruch 1, dadurch gekennzeichnet, daß die Abschnitte (76, 78) miteinander derart gelenkig verbunden sind, daß sie einen auf einen Maximalwert von ungefähr 160° begrenzten Winkel (ϑ₁) definieren.
  3. Vorrichtung gemäß irgendeinem der Patentansprüche 1 und 2, dadurch gekennzeichnet, daß ein Verankerungsmittel (24), geeignet, am Beckenrand (12) befestigt zu werden, die vertikale Führung (22) mittels eines Gelenkes tragt, das eine Schwenkung der Führung (22) um eine vertikale Achse ermöglicht.
  4. Vorrichtung gemäß irgendeinem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß ein abnehmbares, schwimmendes Teil (38) das Gehäuse (26) umgibt.
  5. Vorrichtung gemäß Patentanspruch 4, dadurch gekennzeichnet, daß das abnehmbare, schwimmende Teil (38) ein hohles, abgedichtetes, mit schwimmendem Schaumstoff (44) gefülltes Teil ist.
  6. Vorrichtung gemäß irgendeinem der Patentansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gehäuse (26) einen abnehmbaren Deckel (34) enthält, der sich oberhalb des Wasserspiegels des Beckens befindet.
  7. Vorrichtung gemäß Patentanspruch 6, dadurch gekennzeichnet, daß der Scheinwerfer (23) und seine Schwenkmittel (25) am Deckel (34) befestigt sind.
  8. Vorrichtung gemäß Patentanspruch 1 bis 7, dadurch gekennzeichnet, daß der transparente Boden des Gehäuses (26) eine auf ihrer Unterseite mit einem Kunststoftfilm (32) überzogene Glasplatte (28) enthält.
  9. Vorrichtung gemäß Patentanspruch 1 bis 8, dadurch gekennzeichnet, daß der Scheinwerfer (23) eine Lampe (46) enthält, die im Brennpunkt eines Parabolspiegels (48) angeordnet ist.
EP87401754A 1986-05-29 1987-07-28 Orientierbare Leuchtvorrichtung für ein radioaktives Material enthaltenden Wassertank Expired - Lifetime EP0301146B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8607711A FR2599470B1 (fr) 1986-05-29 1986-05-29 Dispositif d'eclairage orientable pour une piscine contenant des matieres radioactives

Publications (2)

Publication Number Publication Date
EP0301146A1 EP0301146A1 (de) 1989-02-01
EP0301146B1 true EP0301146B1 (de) 1992-07-08

Family

ID=9335775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401754A Expired - Lifetime EP0301146B1 (de) 1986-05-29 1987-07-28 Orientierbare Leuchtvorrichtung für ein radioaktives Material enthaltenden Wassertank

Country Status (5)

Country Link
US (1) US4785386A (de)
EP (1) EP0301146B1 (de)
DE (1) DE3780309T2 (de)
ES (1) ES2033899T3 (de)
FR (1) FR2599470B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599470B1 (fr) * 1986-05-29 1988-08-05 Electricite De France Dispositif d'eclairage orientable pour une piscine contenant des matieres radioactives
US5144545A (en) * 1991-08-21 1992-09-01 Klitzing David W Safety light for swimming pool
FR2706983A1 (en) * 1993-06-23 1994-12-30 Electricite De France Orientable and retractable lighting device for a cavity containing radioactive materials
JP5555180B2 (ja) * 2008-01-16 2014-07-23 ライツ、 キャメラ、 アクション エルエルシイ 水中使用可能な高照度光源アセンブリー

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875382C (de) * 1941-09-23 1953-05-04 Siemens Ag Beleuchtungseinrichtung fuer eine Wasserkunstanlage
US3816740A (en) * 1973-04-02 1974-06-11 Rambusch Decorating Co Underwater lighting system
US4429350A (en) * 1982-09-15 1984-01-31 Guthrie Gaylord N Underwater illumination device
US4482939A (en) * 1983-06-27 1984-11-13 Andrew Tishman Directionally variable lighting assembly
FR2599470B1 (fr) * 1986-05-29 1988-08-05 Electricite De France Dispositif d'eclairage orientable pour une piscine contenant des matieres radioactives

Also Published As

Publication number Publication date
EP0301146A1 (de) 1989-02-01
FR2599470B1 (fr) 1988-08-05
FR2599470A1 (fr) 1987-12-04
DE3780309D1 (de) 1992-08-13
DE3780309T2 (de) 1992-12-17
ES2033899T3 (es) 1993-04-01
US4785386A (en) 1988-11-15

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