JP6650910B2 - Residual water recovery device - Google Patents

Description

  The present invention relates to a residual water recovery device, and particularly to a residual water that can safely, easily and reliably recover residual water consisting of high-concentration contaminated water remaining at the bottom of a flange-type tank without entering the tank. It relates to a recovery device.

  For example, high-concentration contaminated water produced by mixing groundwater flowing into a reactor building with fuel melted down from a reactor core is temporarily stored in a tank, and then transferred from the tank to a purification treatment device.

  To transfer the highly concentrated contaminated water in the tank to the purification treatment device, a transfer pump is installed from the manhole provided at the top of the tank to the bottom of the tank, and the highly concentrated contaminated water is sucked by the transfer pump to purify the treatment device. Has been transferred to

  However, when the tank is a flange type tank, as shown in FIG. 10, the bottom 16 of the tank 15 is divided into a large number of sections by a flange 17 in a lattice shape, so that the inside of one section in which the transfer pump is installed is provided. The remaining water is sucked, but the remaining water in other sections is not sucked because it is partitioned by the flange 17.

  For this reason, in order to suction and transfer the remaining water consisting of all high-concentration contaminated water remaining at the bottom of the tank to the purification treatment device, a person enters the tank 15 to perform suction work or transfer to each section. Although a pump must be installed, entry of a person into the tank 15 may cause exposure, and installation of a transfer pump in each section is not realistic in view of facility costs and suction operations. .

  Therefore, an object of the present invention is to provide a residual water recovery device capable of safely, easily and surely recovering residual water composed of high-concentration contaminated water remaining at the bottom of a flange-type tank without entering the tank. To provide.

  The present invention has been made to achieve the above object, and has the following features.

The invention of claim 1, wherein the bottom travels the bottom portion of the flange tank partitioned into a number of compartments in a grid pattern by the flange, the remaining water recovery apparatus for recovering the residual Ru remaining water to the bottom, endless and residual water collecting device body that can travel by track, wherein provided on both sides in the running direction of the residual water recovery apparatus main body, and a pair of residual water suction nozzle which can advance and retreat in the vertical direction, with respect to the traveling direction The residual water suction nozzle on the rear side extends below the residual water recovery device main body and lifts the rear of the residual water recovery device main body when the residual water recovery device main body crosses over the flange by the endless track. The residual water is suctioned by the residual water suction nozzle and transferred to the outside of the flange type tank.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the residual water suction nozzle is arranged along a direction orthogonal to a traveling direction of the residual water recovery device main body. Things.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the residual water suction nozzle can be moved forward and backward by a cylinder for a residual water suction nozzle attached to the residual water recovery device main body. In particular, it has features.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the suction port of the residual water suction nozzle has a plurality of slits formed along the residual water suction nozzle. It is characterized by being composed of

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, an intermediate portion of the residual water recovery device main body is provided at intervals in a running direction of the residual water recovery device main body. A pair of main body lifting arms capable of moving up and down in the vertical direction, wherein the main body lifting arm on the front side with respect to the traveling direction is provided with the remaining water recovery device when the remaining water recovery device main body climbs over the flange. Extending below the main body, lifting the front of the residual water recovery device main body, and then, when the residual water recovery device main body rides on the flange, the residual water suction nozzle on the rear side with respect to the traveling direction is It is characterized in that it extends below the main body of the residual water recovery device and lifts up the rear of the main body of the residual water recovery device .

  The invention according to claim 6 is the invention according to claim 5, characterized in that the main body lifting arm is arranged along a direction orthogonal to a running direction of the residual water recovery device main body. It is.

  According to a seventh aspect of the present invention, in the invention of the fifth or sixth aspect, the main body lifting arm is configured to be able to advance and retreat from a main body lifting arm cylinder attached to the residual water recovery device main body. It has features.

  The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein a television camera and a lighting light are attached to both sides of the residual water recovery device main body in the running direction. In particular, it has features.

  According to a ninth aspect of the present invention, in the invention according to any one of the first to eighth aspects, front and rear confirmation lamps are attached to both sides of the residual water recovery device main body in the traveling direction. It has features.

  A tenth aspect of the invention is characterized in that, in the invention of any one of the first to ninth aspects, it is possible to remotely control the upper part of the flange type tank.

  According to the present invention, by moving the suction nozzle attached to the main body of the residual water recovery device that can travel on the endless track up and down, the residual water recovery device can be freely lifted and inclined, so that the flange type As a result of being able to easily get over the flange at the bottom of the tank, it is possible to easily and surely collect residual water composed of highly concentrated contaminated water remaining at the bottom.

  According to the present invention, the inclination angle of the residual water recovery device can be further increased by attaching the main body lifting arm to the intermediate portion of the residual water recovery device main body. You can get over.

  Further, according to the present invention, since the remote operation is possible from the upper part of the flange type tank, it is not necessary for a person to enter the tank, so that the residual water can be safely collected without fear of exposure.

It is a perspective view showing the residual water recovery device of this invention. It is a front view which shows the residual water collection | recovery apparatus of this invention. It is a side view which shows the residual water collection | recovery apparatus of this invention. It is a side view which shows the residual water suction nozzle and the advancing / retreating area | region of a main body lifting arm. It is the perspective view which looked at the residual water suction nozzle of the residual water collection | recovery apparatus of this invention from the lower part. It is a side view which shows the residual water suction state by the residual water collection | recovery apparatus of this invention. It is a figure which shows the outline which transfers the residual water of a tank bottom part to a purification processing apparatus, and collect | recovers by the residual water collection | recovery apparatus of this invention. It is a figure which shows the state in which the residual water collection | recovery apparatus of this invention gets over a flange, (a) is a side view which shows the state just before the main body of a residual water collection | recovery apparatus crosses over a flange, (b) is a main body of the residual water collection | recovery apparatus. FIG. 4 is a side view showing a state in which the horizontal direction is at the flange. It is a figure which shows the state which the residual water collection | recovery apparatus of this invention climbs over a higher flange, (a) is a side view which shows the state just before the main body of a residual water recovery | recovery apparatus climbs over a flange, (b) is residual water recovery It is a side view which shows the state which the apparatus main body became substantially horizontal on a flange. It is a partial perspective view showing the bottom of a flange type tank.

  One embodiment of the residual water recovery apparatus A of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a residual water recovery device of the present invention, FIG. 2 is a front view showing the residual water recovery device of the present invention, and FIG. 3 is a side view showing the residual water recovery device of the present invention.

  1 to 3, reference numeral 1 denotes a main body of the residual water recovery device. The main body 1 of the residual water recovery device can run on a pair of endless tracks 3 each driven by a motor 2.

  4a and 4b are a pair of residual water suction nozzles provided on both sides of the residual water recovery device main body 1 in the running direction. The residual water suction nozzles 4a and 4b are arranged along a direction perpendicular to the traveling direction of the residual water recovery device A, respectively. The residual water suction nozzles 4a and 4b are moved up and down by a residual water suction nozzle cylinder 8 described later, whereby the residual water recovery device A is freely lifted and tilted. Can easily get over the flange 17 of the bottom part 16 (see FIG. 10). FIG. 4 shows the advance / retreat area of the residual water suction nozzles 4a and 4b by (L1).

  As shown in FIG. 5, the suction port 5 of the residual water suction nozzles 4a and 4b is composed of a plurality of slits formed along the residual water suction nozzles 4a and 4b, and can reliably suction residual water. It has become. The residual water suction nozzles 4a and 4b are connected to a discharge port 7 provided in the residual water recovery device main body 1 via a rigid pipe 6a and a flexible pipe 6b connected to the rigid pipe 6a. The discharge port 7 is connected to a suction pump 18 (see FIG. 7) described later.

  Reference numeral 8 denotes a cylinder for a residual water suction nozzle that moves the residual water suction nozzles 4a and 4b forward and backward. The cylinder 8 for the residual water suction nozzle is attached to both sides of the main body 1 of the residual water recovery device in a C shape, and the rod 9 of the cylinder 8 for the residual water suction nozzle is fixed to the residual water suction nozzles 4a and 4b. I have. When the rod 9 is moved forward and backward, the remaining water suction nozzles 4a and 4b move up and down accordingly. At this time, since the residual water suction nozzles 4a and 4b are connected to the flexible tube 6b via the rigid tube 6a, they can freely move up and down in accordance with the movement of the rod 9.

  Reference numerals 10a and 10b denote a pair of downward U-shaped main body lifting arms provided at an intermediate portion of the residual water recovery device main body 1 at intervals in the traveling direction of the residual water recovery device main body 1. The main body lifting arms 10a and 10b are disposed along a direction orthogonal to the method of moving the residual water recovery device A, respectively. The main body lifting arms 10a, 10b are moved up and down by a main body lifting arm cylinder 11, which will be described later, whereby the residual water recovery device A is freely lifted and inclined. The flange 17 of the bottom 16 can be easily overcome. FIG. 4 shows the range of movement of the main body lifting arms 11a and 11b by (L2).

  Since the main body lifting arms 10a and 10b are attached to the intermediate portion of the residual water recovery device main body 1, that is, inside the residual water suction nozzles 4a and 4b, the residual water is recovered more than the residual water suction nozzles 4a and 4b. The inclination angle of the device A can be increased, and the higher flange 17 can be overcome.

  Reference numeral 11 denotes a main body lifting arm cylinder for moving the main body lifting arms 10a and 10b forward and backward. The main body lifting arm cylinder 11 is vertically attached to both side surfaces of the residual water recovery device main body 1.

  Numerals 12 are television cameras mounted on both sides of the residual water collecting device main body 1 in the traveling direction, and can accurately grasp the traveling position and the residual water state of the residual water collecting device.

  Reference numeral 13 denotes an illumination light for the television camera 12 attached to both sides of the residual water recovery device main body 1 in the traveling direction.

  Reference numeral 14 denotes front and rear confirmation lamps mounted on both sides of the residual water recovery device main body 1 in the traveling direction, for accurately confirming the front and rear of the residual water recovery device A in the tank from above the tank.

  All the operations of the above-described residual water recovery device A can be remotely controlled from the upper portion of the tank 15 as described later.

  Next, a method of recovering residual water composed of high-concentration contaminated water remaining at the bottom of the flange type tank by the residual water recovery apparatus A of the present invention will be described with reference to the drawings.

  FIG. 6 is a side view showing a state of suction of residual water by the residual water recovery device of the present invention, and FIG. 7 is an outline of transferring and recovering residual water at the bottom of the tank to the purification treatment device by the residual water recovery device of the present invention. FIGS. 8A and 8B are diagrams showing a state where the residual water recovery device of the present invention gets over the flange, and FIG. 8A is a side view showing a state immediately before the residual water recovery device main body gets over the flange, and FIG. FIG. 4 is a side view showing a state in which the main body of the residual water recovery device is horizontal with a flange.

  As shown in FIG. 7, the residual water recovery device A and the suction pump 18 are suspended from the manhole 23 and installed at the bottom 16 of the tank 15. The residual water recovery device A can be remotely operated from the upper part of the tank 15 by an operation panel 20 connected to a power supply 19 provided with a compressor and the like.

  As shown in FIG. 6, the residual water 21 remaining in the bottom 16 of the tank 15 is sucked by the suction pump 18 from the residual water suction nozzles 4a and 4b extended downward by the cylinder 8 for the residual water suction nozzle, and purified. It is transferred to the processing device 22.

  When the recovery of the residual water in one section is completed, as shown in FIG. 8 (a), the residual water recovery device A is run to get over the flange 17 by the endless track 3, and at this time, as shown in FIG. As shown in the figure, the residual water suction nozzle 4b on the rear side is extended downward by the residual water suction nozzle cylinder 8, thereby raising the rear of the residual water recovery device A and maintaining the posture of the residual water recovery device A horizontal. Then, the water enters into another adjacent section, and the residual water 21 is recovered in the same manner. Immediately before the residual water recovery device A enters another adjacent section, the residual water suction nozzle 4b on the rear side is retracted upward by the residual water suction nozzle cylinder 8.

  Hereinafter, by repeating this operation for all the sections while confirming with the television camera 12 and the front and rear confirmation lamps 14, the residual water remaining in the bottom 16 of the tank 15 can be collected.

  The above is a case where the residual water recovery device A travels from right to left in FIG. 8, for example. When traveling from left to right, the residual water suction nozzle 4a on the opposite side is used. Thereby, the residual water 21 can be similarly recovered.

  In the case where the height of the flange 17 is high and it is difficult to get over the flange 17 as shown in FIG. 8A, as shown in FIG. It is extended downward by the lifting arm cylinder 11, thereby raising the front of the residual water recovery device A higher, and then riding on the flange 17, and thereafter, as shown in FIG. The nozzle 4b is extended downward by the residual water suction nozzle cylinder 8, thereby raising the rear of the residual water recovery device A to maintain the attitude of the residual water recovery device A substantially horizontal, and then moving the residual water recovery device A into another adjacent section. Then, the remaining water 21 is recovered in the same manner. Immediately before the residual water recovery device A enters another section, the rear residual water suction nozzle 4b is retracted upward by the residual water suction nozzle cylinder 8.

  Hereinafter, by repeating this operation for all the sections while confirming with the television camera 12 and the front and rear confirmation lamps 14, even if the height of the flange 17 is high, it remains on the bottom 16 of the tank 15. Residual water can be recovered.

  The above is the case where the residual water recovery device A travels, for example, from right to left in FIG. 9, but when traveling from left to right, the opposite body lifting arm 10b and residual water suction By using the nozzle 4a, the residual water 21 can be similarly recovered.

  As described above, according to the present invention, the residual water recovery device A can be freely moved by moving the residual water suction nozzles 4a and 4b attached to the residual water recovery device main body 1 that can travel on the endless track 3 forward and backward. Since it can be lifted and inclined, it is possible to easily get over the flange 17 of the bottom portion 16 of the flange type tank 15, and as a result, it is possible to easily and surely collect the residual water 21 composed of highly concentrated contaminated water remaining on the bottom portion 16. Can be.

  Further, according to the present invention, the inclination angle of the residual water recovery device can be further increased by attaching the main body lifting arms 10a and 10b to the intermediate portion of the residual water recovery device main body 1, so that the higher flange 17 can be used. Even if you can, you can easily get over it.

  Further, according to the present invention, since the remote operation can be performed from the upper portion of the flange type tank 15, it is not necessary for a person to enter the tank, so that the residual water can be safely collected without fear of exposure.

1: Main body of residual water recovery device 2: Motor 3: Endless track 4a, 4b: Residual water suction nozzle 5: Suction port 6a: Rigid pipe 6b: Flexible pipe 7: Discharge port 8: Cylinder for residual water suction nozzle 9: Rods 10a, 10b: Body lifting arm 11: Body lifting arm cylinder 12: TV camera 13: Illumination light 14: Front / back confirmation light 15: Tank 16: Bottom 17: Flange 18: Suction pump 19: Power supply 20: Operation Panel 21: Residual water 22: Purification treatment device 23: Manhole

Claims (10)

Bottom travels the bottom portion of the grid-shaped in a number flange tank partitioned into compartments by the flange, the remaining water recovery apparatus for recovering the residual Ru remaining water to the bottom portion,
A residual water recovery device that can run on an endless track,
A pair of residual water suction nozzles provided on both sides in the running direction of the residual water recovery device main body and capable of moving up and down in the vertical direction,
With
The residual water suction nozzle on the rear side with respect to the traveling direction extends below the residual water recovery device main body when the residual water recovery device main body passes over the flange by the endless track, and Lift the back of the body,
The residual water recovery device, wherein the residual water is suctioned by the residual water suction nozzle and transferred to the outside of the flange type tank.   The said residual water suction nozzle is arrange | positioned along the direction orthogonal to the running direction of the said residual water recovery apparatus main body, The residual water collection apparatus of Claim 1 characterized by the above-mentioned.   3. The residual water recovery device according to claim 1, wherein the residual water suction nozzle is movable forward and backward by a residual water suction nozzle cylinder attached to the residual water recovery device main body. 4.   4. The residual water according to claim 1, wherein a suction port of the residual water suction nozzle includes a plurality of slits formed along the residual water suction nozzle. 5. Collection device. In the middle part of the residual water recovery device main body, provided with a pair of main body lifting arms that are provided at intervals in the running direction of the residual water recovery device main body and that can move up and down in the vertical direction ,
When the residual water recovery device main body climbs over the flange, the main body lifting arm on the front side with respect to the traveling direction extends below the residual water recovery device main body and lifts the front of the residual water recovery device main body, Then, when the main body of the residual water recovery device rides on the flange, the residual water suction nozzle on the rear side with respect to the traveling direction extends below the main body of the residual water recovery device to extend the main body of the residual water recovery device. 5. The residual water recovery device according to claim 1, wherein a rear portion of the wastewater recovery device is lifted . 6.   The residual water recovery device according to claim 5, wherein the main body lifting arm is disposed along a direction orthogonal to a traveling direction of the residual water recovery device main body.   The residual water recovery device according to claim 5, wherein the main body lifting arm is configured to be able to advance and retreat from a main body lifting arm cylinder attached to the residual water recovery device main body.   The residual water recovery device according to any one of claims 1 to 7, wherein a television camera and a lighting light are attached to both sides of the main body of the residual water recovery device in the traveling direction.   The residual water recovery device according to any one of claims 1 to 8, wherein front and rear confirmation lamps are attached to both sides of the main body of the residual water recovery device in the traveling direction.   The residual water recovery apparatus according to any one of claims 1 to 9, wherein the apparatus can be remotely operated from an upper part of the flange type tank.

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