Nuclear facility pool cleaning device

Abstract

The invention relates to a nuclear facility pool cleaning device having a floating platform, capable of floating in water, having buoyancy bodies; a drive device for displacing the floating platform on the surface of a water-filled nuclear facility pool to be cleaned; a winching device connected to the floating platform; a pump which is winchable vertically by the winching device and has a vacuum hose, connected thereto at its first end, for cleaning the bottom of the nuclear facility pool; a remote control device for remotely operating at least the drive device and the winching device; an optional stationary external storage tank; and wherein the second end of the vacuum hose preferably leads at least indirectly into the stationary external storage tank.

Claims

1. A nuclear facility pool cleaning device, comprising: a floating platform, configured for floating in water, having buoyancy bodies wherein the floating platform has a metal frame with the buoyancy bodies arranged in a manner spaced apart from one another on both sides of an axial centerline of the metal frame, the metal frame configured to have a portion above the water line and a portion below the water line; a drive device mounted from the floating platform for displacing the floating platform on a surface of a water-filled nuclear facility pool to be cleaned, the drive device configured to be mounted below the water line and within the metal frame; a winching device connected to the floating platform; a pump which is winchable vertically by the winching device and has a vacuum hose, connected thereto at its first end, for cleaning a bottom of the nuclear facility pool; and a remote control device for remotely operating at least the drive device and the winching device.

2. The nuclear facility pool cleaning device according to claim 1, comprising: a stationary external storage tank, wherein the second end of the vacuum hose leads at least indirectly into the stationary external storage tank.

3. The nuclear facility pool cleaning device according to claim 2, comprising: a connecting assembly provided at the second end of the vacuum hose; and a discharge hose wherein said connecting assembly connects said second end of the vacuum hose to the first end of the discharge hose, and a second end of the discharge hose leading into the stationary external storage tank.

4. The nuclear facility pool cleaning device according to claim 3, wherein the connecting assembly is connected to the floating platform.

5. The nuclear facility pool cleaning device according to claim 4, wherein the length of the vacuum hose corresponds at least to a depth of the nuclear facility pool to be cleaned.

6. The nuclear facility pool cleaning device according to claim 5, wherein the pump is winchable up and down by the winching device from an upper position within the floating platform to a lower position beneath the water surface onto a bottom of the nuclear facility pool to be cleaned.

7. The nuclear facility pool cleaning device according to claim 1, wherein the pump is winchable up and down by the winching device from an upper position within the floating platform to a lower position beneath the water surface onto the bottom of the nuclear facility pool to be cleaned.

8. The nuclear facility pool cleaning device according to claim 7, wherein the drive device comprises at least three drives, specifically one for axial forward motion, and two for laterally displacing and rotating the floating platform.

9. The nuclear facility pool cleaning device according to claim 1, wherein the drive device comprises at least three drives, specifically one for axial forward motion, and two for laterally displacing and rotating the floating platform.

10. The nuclear facility pool cleaning device according to claim 9, comprising: at least one overview camera provided on the floating platform.

11. The nuclear facility pool cleaning device according to claim 1, comprising: at least one overview camera is provided on the floating platform.

12. The nuclear facility pool cleaning device according to claim 11, wherein image data from the at least one overview camera are transferable to a display device of the remote control device and are able to be displayed there.

13. The nuclear facility pool cleaning device according to claim 12, comprising: light sources for illuminating a recording region of the at least one overview camera provided on the floating platform.

14. The nuclear facility pool cleaning device according to claim 11, comprising: light sources for illuminating a recording region of the at least one overview camera provided on the floating platform.

15. The nuclear facility pool cleaning device according to claim 1, comprising: a flexible cable harness wherein the floating platform is connected to an external stationary transfer interface by the cable harness that is configured for floating in water.

16. The nuclear facility pool cleaning device according to claim 15, wherein the cable harness comprises: electric power lines for supplying the floating platform with electric power.

17. The nuclear facility pool cleaning device according to claim 15, wherein the cable harness comprises: data lines for data exchange with the remote control device.

18. The nuclear facility pool cleaning device according to claim 1, wherein the winching device is arranged at least partially in an intermediate space formed between the buoyancy bodies.

19. The nuclear facility pool cleaning device according to claim 1, wherein the portion of the metal frame below the water within which the drive device is mounted has horizontally at least partially encircling fenders.

20. The nuclear facility pool cleaning device according to claim 1, comprising: a connecting assembly provided at the second end of the vacuum hose; and a discharge hose wherein said connecting assembly connects said second end of the vacuum hose to the first end of the discharge hose, and a second end of the discharge hose leading into a stationary external storage tank.

Description

(1) The invention, further embodiments and further advantages are intended to be described in more detail by way of the exemplary embodiments illustrated in the drawings.

(2) In the drawings

(3) FIG. 1 shows a first example of a floating platform,

(4) FIG. 2 shows a second example of a floating platform, and

(5) FIG. 3 shows a nuclear facility pool having a nuclear facility pool cleaning device.

(6) FIG. 1 shows a side view of a first example of a floating platform 10. Arranged on a metal frame 32, on both sides of its axial centre, are cuboidal buoyancy bodies 12, 14 which keep the floating platform 10, floating in water, at least partially above the water surface 34. Provided between the buoyancy bodies 12, 14 which are arranged in a manner spaced apart from one another is a winching device 16, in this case comprising a winch with a drive, said winching device 16 being able, by means of a cable guided over a winch sheave 18, to winch a pump 20 fastened to the end of the cable up and down in the direction of the arrow 22. The pump 20 is connected via a vacuum hose 24 to a storage tank (not illustrated) into which the pumped-out water is guided.

(7) The floating platform 10 is fully maneuverable by means of a drive device comprising a plurality of drives 26, 28, wherein the drives 26, 28 and also the winching device 16 are remotely controllable via a remote control device (not illustrated). Arranged around the floating platform 10 are partially encircling fenders 30 which adequately cushion impacts brought about for example by collisions with the pool edge, such that damage to the floating platform 10 is advantageously avoided as a result.

(8) FIG. 2 shows a plan view of a second example of a floating platform 40. Arranged at a horizontal distance apart on a metal frame 42 are two buoyancy bodies 46, 48 which keep the floating platform 10 above the water surface. Arranged above crossbars 44 of the metal frame 42 is a control box 50 which optionally makes the voltage supply from a cable harness (not shown) available to the various electrical components of the floating platform 40, for example a winching device 54. The winching device 54 is a cable winch by means of which a pump 52 can be winched up and down.

(9) FIG. 3 shows an illustration 60 of a nuclear facility pool having a nuclear facility pool cleaning device. A floating platform 62 floats on the water surface 82 of a nuclear facility pool 78 filled with water 80. By means of a winching device of the floating platform 62, a pump 66 is winchable onto the floor of the nuclear facility pool 78 via a cable 68. While it is operating, the pump 66 is intended to pump water from the pool floor into a vacuum hose 70 which leads into a connecting assembly 72 on the floating platform 62.

(10) Provided in a manner exiting the connecting assembly 72 is a discharge hose 74 which in this example leads into a stationary external storage tank 76 at the pool edge, the pumped-out water being introduced into said storage tank 76.

(11) The floating platform 62 additionally has a top-mounted control box 64, from which the drives and the winching device of the floating platform 62 are supplied. The control box 64 is for its part supplied with electric power via a cable harness 90 that is capable of floating, wherein the cable harness 90 also has a data line for the remote operation of the floating platform 62. The floating capability of the cable harness 90 is achieved by floating bodies 92. The cable harness 90 is connected at the pool edge to an external stationary transfer point 84 at which both an electric power supply and a data interface are provided.

LIST OF REFERENCE SIGNS

(12) 10 First example of floating platform 12 First buoyancy body of floating platform 14 Second buoyancy body of floating platform 16 Winching device 18 Winch sheave 20 Pump 22 Up and down winching direction of pump 24 Vacuum hose 26 First drive of drive device 28 Second drive of drive device 30 Fender 32 Metal frame 34 Water surface 40 Second example of floating platform 42 Metal frame 44 Crossbar of metal frame 46 First buoyancy body of floating platform 48 Second buoyancy body of floating platform 50 Control box 52 Pump 54 Winching device 60 Nuclear facility pool having nuclear facility pool cleaning device 62 Floating platform 64 Control box 66 Pump 68 Cable 70 Vacuum hose 72 Connecting assembly 74 Discharge hose 76 Stationary external storage tank 78 Nuclear facility pool 80 Water content of nuclear facility pool 82 Water surface 84 External stationary transfer interface 86 Remote control device 88 Operator 90 Cable harness capable of floating 92 Floating body of cable harness