JP6796826B2 - Anti-scattering agent spraying device - Google Patents

Description

The present invention relates to an anti-scattering agent spraying device that sprays an anti-scattering agent such as water or a chemical solution for dust prevention.

Conventionally, in the work of generating dust such as dismantling of a structure, an anti-scattering agent spraying device for spraying an anti-scattering agent such as water or a chemical solution on a dust-proof area has been known. For example, Patent Document 1 discloses an anti-scaffolding agent spraying device in which a scaffold is provided on the outer periphery of a structure to be dust-proof and water is sprinkled from the scaffold to the structure.

Japanese Unexamined Patent Publication No. 2004-169461

However, in the anti-scattering agent spraying device disclosed in Patent Document 1, since the anti-scaffolding agent is sprayed from the scaffolding provided on the outer periphery of the structure, the wall portion of the structure is wide and the inside of the structure is wide. It is difficult to spray the shatterproof agent over the area.

Therefore, an object of the present invention is to provide an anti-scattering agent spraying device capable of spraying the anti-scattering agent over a wide range.

In order to achieve the above object, the anti-scattering agent spraying device according to the present invention is an anti-scattering agent spraying device that sprays the anti-scattering agent in the spray target range, the tank containing the anti-scattering agent and the scattering from the tank. A nozzle unit to which an inhibitor is supplied and ejects the anti-scattering agent, a support portion that supports the tank and the nozzle unit, a lifting portion that lifts and moves the support portion, and a remote nozzle unit. The nozzle unit has an operation unit that can be operated, and a plurality of nozzles for ejecting the anti-scattering agent in a substantially horizontal direction are arranged at intervals from each other in the nozzle unit, and the nozzle unit is arranged in a substantially horizontal direction. The arm further has an arm rotatably supported below the tank about an extending rotation shaft, and the base end portion of the arm is connected to the rotation shaft and the tip end portion is from the base end portion. The nozzle unit is configured to be rotatable between a state in which the tip portion protrudes downward in the vertical direction and a state in which the tip portion protrudes substantially horizontally from the base end portion, and the nozzle unit is attached to the tip portion of the arm. It is characterized by being attached .

In the present invention, the support portion that supports the tank and the nozzle unit can be lifted and moved by the lifting portion, and the nozzle unit can be moved and operated by remote control. Therefore, the nozzle unit can be moved to the spraying target range to spray the anti-scattering agent, and the anti-scattering agent can be sprayed over a wide range even on a wall portion existing in a place where it cannot be easily entered.

Moreover, since the nozzle unit is arranged with a plurality of spouts for spraying the anti-scattering agent in a substantially horizontal direction at intervals, the anti-scattering agent can be sprayed horizontally from a plurality of places over a wide range. Anti-scattering agent can be sprayed on the surface.

Also, in anti-scattering agent diffusing apparatus according to the present invention, the arm may be configured external shape in plan view has less than the outer shape of the support portion.
Since the nozzle unit is attached to an arm that protrudes downward from the support part, and the outer shape of this arm in a plan view is smaller than the outer shape of the support part, the support part enters by lifting and lowering the support part. The anti-scattering agent can be sprayed by inserting the arm into a narrow space that cannot be used. For example, even if an obstacle is arranged in the vicinity of the spray target range, an arm can be inserted between the spray target range and the obstacle to spray the anti-scattering agent on the wall portion.

Further, the anti-scattering agent spraying device according to the present invention may have a swivel portion for swiveling the support portion.
The nozzle unit can be arranged at a desired position by rotating the support portion with the swivel portion. Further, by spraying the anti-scattering agent while rotating the nozzle unit, the anti-scattering agent can be evenly sprayed over a wide range.

According to the present invention, the anti-scattering agent can be sprayed over a wide range.

It is a perspective view which shows the apparatus main body of the anti-scattering agent spraying apparatus which concerns on embodiment of this invention. It is the schematic which shows the use state of the anti-scattering agent spraying apparatus which concerns on embodiment of this invention. It is a figure which showed the rotating arm in the side view of the spraying apparatus main body of the scattering prevention agent spraying apparatus which concerns on embodiment of this invention. It is a front view of the spraying apparatus main body of the scattering prevention agent spraying apparatus which concerns on embodiment of this invention.

Hereinafter, the anti-scattering agent spraying device according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4.
The anti-scattering agent spraying device 1 according to the embodiment of the present invention shown in FIGS. 1 to 4 is an anti-scattering agent 12 such as water or chemicals from the outside in the spray target range inside the disassembled structure 11 (see FIG. 2). Is a device for spraying dust to prevent dust from scattering during dismantling. For example, it is used to prevent the scattering of dust contaminated with radioactive substances when dismantling a nuclear power plant.

The anti-scattering agent spraying device 1 includes a tank 2 containing the anti-scattering agent 12, a nozzle unit 3 to which the anti-scattering agent 12 is supplied from the tank 2 and ejects the anti-scattering agent 12 to the wall portion 13, the tank 2 and the nozzle. A support portion 4 that supports the unit 3 and the like, a lifting portion 5 such as a crane device arranged outside the structure 11 so as to lift and move the support portion 4, a nozzle unit 3 and a lifting portion 5 It has an operation unit (not shown) capable of remotely controlling such as, and a swivel unit 6 for swiveling the support unit 4.

Further, the anti-scattering agent spraying device 1 is a generator 72 as a power feeding unit that supplies electric power to each part such as the pump unit 71 that pumps the anti-scattering agent 12 from the tank 2 to the nozzle unit 3, the swivel part 6, and the pump unit 71. A control panel 73 for controlling each unit, a tracking prism 74, a network antenna 75, and the like are provided, and these are supported by the support unit 4.

The support portion 4 is formed of a frame material into a polygonal shape such as a quadrangle in a plan view. Legs 41 are provided on the lower end side, and suspension portions 42 are provided on the four corners on the upper end side.
The support portion 4 is divided into a plurality of upper and lower stages, the tank 2 is supported in the upper stage, and equipment such as the nozzle unit 3, the swivel portion 6, the pump unit 71, and the generator 72 are supported in the lower stage.
By supporting each facility by the support portion 4, the spraying device main body 10 capable of lifting is configured.

The tank 2 is configured to accommodate about 3 m ³ of the anti-scattering agent 12 and has a cylindrical shape. The tank 2 contains an anti-scattering agent such as water, a chemical solution, and a viscous fluid.
The tank 2 is placed on the uppermost stage of the support portion 4, and is arranged at a position where it vertically overlaps with at least a part of the equipment supported on the lower stage.
Further, the tank 2 is arranged in the support portion 4 so that the position of the center of gravity of the spraying device main body 10 in a plan view is within a predetermined range, preferably constant, regardless of the amount of the anti-scattering agent 12 contained in the tank 2. ..

As shown in FIG. 3, an arm 43 that protrudes downward and has an outer shape smaller than that of the support portion 4 is mounted on the lower portion of the support portion 4. The arm 43 is formed to be smaller in thickness than the frame body 40 of the support portion 4 in a side view.
The arm 43 is rotatably supported by the support portion 4 about a rotation axis extending in a substantially horizontal direction, and rotates from a lower position in the vertical direction to a horizontal position in the horizontal direction via an inclined position. It is configured to be movable. A nozzle unit 3 is mounted on the lower end side of the arm 43 in a state of projecting downward, and a caster 44 capable of grounding is mounted on the lower end.

The arm 43 is in a state of protruding downward when the anti-scattering agent 12 is sprayed during use, and rotates when the spraying device main body 10 when not in use is housed in a warehouse or the like. It is in a state of protruding to the side. Further, the caster 44 is used when traveling on the ground or floor surface to move the spraying device main body 10 when not in use.

The nozzle unit 3 is arranged in the vicinity of the lower end of the arm 43 with a supply pipe 35 extending in the horizontal direction substantially parallel to the rotation axis of the arm 43 and a supply pipe 35 at intervals in the extending direction of the supply pipe 35. It has a nozzle body 31 and a nozzle body 31. The nozzle body 31 is provided with an outlet 34 for ejecting the anti-scattering agent 12.
The ejection port 34 provided in each nozzle body 31 is configured to be capable of ejecting the anti-scattering agent 12 on one side in a substantially horizontal direction substantially orthogonal to the extending direction of the supply pipe 35.
The anti-scattering agent 12 ejected from the nozzle unit 3 may be a liquid mixed with a gas such as mist as well as a liquid such as water or a chemical solution.

The pump unit 71 is a means for pressurizing and supplying the anti-scattering agent 12 from the tank 2 to the supply pipe 35 of the nozzle unit 3, and has an electromagnetic valve for switching between supply and stop of the nozzle unit 3.
The opening / closing control of the solenoid valve of the pump unit 71 and the ON / OFF control of the pump unit 71 can be remotely controlled from the operation unit.

The swivel portion 6 is fixedly provided to the support portion 4, and is configured so that the support portion 4 suspended from the lifting portion 5 can be swiveled by the drive of the swivel portion 6.
The swivel portions 6 are provided on both sides of the support portion 4 in the longitudinal direction, and have a blower 61 fixed to the support portion 4 and a swivel duct 62 for discharging the air flow of the blower 61. The swivel duct 62 is arranged in the support portion 4 on a side different from the one side on which the nozzle unit 3 is arranged. The blower 61 and the swivel duct 62 are supplied with power from the generator 72 and are configured to be controllable by remote control from the operation unit.

The swivel duct 62 is a member that is bent so that its axis is substantially L-shaped, and is arranged so that the axis on one side where air flows in extends in the horizontal direction, and the other side on which air is discharged is on one side. It opens in the bent direction from the connection part. The swivel duct 62 is provided on the support portion 4 so as to be rotatable around an axis on one side. The axis on one side of the swivel duct 62 is referred to as the swivel axis 62a.

When air is discharged from the outlet 62b at the other end of the swivel duct 62, a couple is generated such that the support portion 4 swivels due to the reaction force of the discharged air flow. As a result, the support portion 4 rotates in the horizontal plane. The rotation of the support portion 4 is centered on a suspension core suspended from the lifting portion 5.
By rotating the swivel duct 62 around the rotation axis 62a, the direction in which the outlet 62b at the rear end opens can be adjusted. As a result, the direction of the air flow discharged from the swivel duct 62 can be adjusted, and the swivel direction of the support portion 4 can be adjusted.
If the direction in which the outlet 62b opens is the upper side in the vertical direction, the support portion 4 is stopped from turning in the horizontal plane.

When changing the direction of the support portion 4, the swivel duct 62 is rotated so as to adjust the direction of the air flow discharged from the swivel duct 62. When the orientation of the support portion 4 is the desired orientation, the rotation of the swivel duct 62 is stopped with the outlet 62b of the swivel duct 62 facing upward.
In the present embodiment, the swivel portion 6 and the nozzle unit 3 are provided in the support portion 4 so that the air discharged from the outlet 62b of the swivel duct 62 does not hit the nozzle unit 3.
By doing so, it is possible to prevent the spraying of the anti-scattering agent 12 ejected from the nozzle unit 3 from being disturbed by the air flow of the swirl duct 62. Further, it is possible to prevent the air flow of the swivel duct 62 from being sprayed on the spraying target range where the shatterproofing agent 12 is sprayed.

A method of spraying the anti-scattering agent 12 by the anti-scattering agent spraying device 1 as described above will be described.
In the present embodiment, the vicinity of the ground around the outside of the structure 11 is covered with the windbreak cover 14, and the anti-scattering agent 12 is applied to the inside of the structure 11 from between the wall portion 13 of the structure 11 and the windbreak cover 14. It is spraying. An opening is formed in the wall portion 13, and the anti-scattering agent 12 ejected horizontally from between the wall portion 13 and the windbreak cover 14 is sprayed inside the structure 11 through the opening.
First, with the anti-scattering agent 12 contained in the tank 2, the spraying device main body 10 is lifted by the lifting portion 5 by remote control, and the lifting portion 5 is moved to the vicinity of the wall portion 13 of the structure 11 to be disassembled. Let me.
The swivel portion 6 is operated by remote control to swivel the spraying device main body 10, and the nozzle unit 3 and the ejection ports 34 of the plurality of nozzle main bodies 31 are opposed to the wall portion 13 of the structure 11.
The spraying device main body 10 is lowered by remote control, and the nozzle unit 3 and the arm 43 are inserted between the wall portion 13 of the structure 11 and the windbreak cover 14 from above.

By operating the pump unit 71 by remote control, the anti-scattering agent 12 is ejected from the plurality of ejection ports 34, and the anti-scattering agent 12 is sprayed inside the structure 11.

Next, the action and effect of the above-mentioned anti-scattering agent spraying device 1 will be described with reference to the drawings.
In the anti-scattering agent spraying device 1 according to the above-described embodiment, the support portion 4 that supports the tank 2 and the nozzle unit 3 can be lifted and moved by the lifting portion 5, and the nozzle unit 3 and the lifting portion 5 are remotely controlled. It can be moved and operated by operation. Therefore, the nozzle unit 3 can be moved to a wide range inside the structure 11 to spray the anti-scattering agent 12, and even if the wall portion 13 exists in a place where it cannot be easily entered, the scattering prevention is prevented over a wide range. The agent 12 can be sprayed.
Moreover, since the nozzle unit 3 is provided with a plurality of outlets 34 for ejecting the anti-scattering agent 12 in the horizontal direction at intervals, the anti-scattering agent 12 can be sprayed over a wide range.

Further, since the nozzle unit 3 is attached to the arm 43 protruding downward from the support portion 4, and the outer shape of the arm 43 in a plan view is smaller than that of the support portion 4, the support portion 4 is lifted and lowered. The arm 43 can be inserted into a narrow space (in this embodiment, between the wall portion 13 of the structure 11 and the windbreak cover 14) where the support portion 4 cannot enter, and the anti-scattering agent 12 can be sprayed.

Further, the orientation of the lifted support portion 4 can be adjusted by turning the support portion 4 by the swivel portion 6.

Further, the tank 2 is arranged in the support portion 4 so that the position of the center of gravity in the plan view is within a predetermined range regardless of the amount of the anti-scattering agent 12. Therefore, by spraying the anti-scattering agent 12 over a wide area inside the structure 11, the position of the center of gravity of the anti-scattering agent spraying device 1 changes significantly even if the weight of the tank 2 containing the anti-scattering agent 12 fluctuates greatly. do not do. As a result, the operability of the lifted support portion 4 such as turning can be kept stable while the anti-scattering agent 12 is sprayed, and a large-capacity tank 2 can be attached to remotely control a large amount of the anti-diffusion agent. It can be easily sprayed.

Although the embodiment of the anti-scattering agent spraying device 1 according to the present invention has been described above, the present invention is not limited to the above embodiment and can be appropriately changed without departing from the spirit of the present invention.
In the above embodiment, the anti-scattering agent spraying device 1 is used in an area contaminated with radioactive substances at the time of dismantling a nuclear power plant, but the intended use is not particularly limited. For example, it can be used in a structure 11 installed in various places where humans cannot easily enter, such as using it to prevent asbestos from scattering when disassembling the structure 11 using asbestos. Further, the anti-scattering agent spraying device 1 may be used in a place where a person can enter.

Further, in the above embodiment, the anti-scattering agent 12 is sprayed inside the structure 11 from between the wall portion 13 of the structure 11 and the windbreak cover 14 by the anti-scattering agent spraying device 1. The anti-scattering agent 12 may be sprayed on the inside of the structure 11 or on the wall portion 13 without inserting the nozzle unit 3 between the wall portion 13 and the windbreak cover 14. At this time, the anti-scattering agent 12 may be sprayed while changing the position and orientation of the spraying device main body 10 by remotely controlling the lifting portion 5 and the swivel portion 6.
Further, the anti-scattering agent 12 may be sprayed on the scattering target range outside the structure 11 by the anti-scattering agent spraying device 1.

Further, in the above embodiment, the nozzle unit 31 is provided with three spouts 34, but two or four or more spouts 34 may be provided. The arrangement of these spouts 34 may be appropriately set.
Further, in the above embodiment, the swivel portion 6 is provided, but the swivel portion 6 may not be provided. Further, in the above embodiment, the swivel duct 62 for exhausting the air flow is used as the swivel portion 6, but another swivel means may be used as long as the lifted support portion 4 can be swiveled in a desired direction.

Further, in the above embodiment, the arm 43 protruding downward from the support portion 4 is provided and the nozzle unit 3 is provided on the arm 43, but the arm 43 is not provided and the nozzle unit 3 is provided. It may be provided directly on the support portion.
Further, in the above embodiment, the arm 43 is configured to be rotatable with respect to the support portion 4, but may not rotate. Further, the caster 44 may not be attached to the arm 43.
Further, in the above embodiment, the generator 72 is attached as the power feeding unit, but other structures such as a storage battery may be used.

1 Anti-scattering agent spraying device 2 Tank 3 Nozzle unit 4 Support part 5 Lifting part 6 Swinging part 10 Spraying device body 11 Structure 12 Anti-scattering agent 13 Wall part 14 Windbreak cover 31 Nozzle body 34 Spout 43 Arm

Claims (3)

In the anti-scattering agent spraying device that sprays the anti-scattering agent over the spray target area
A tank containing the shatterproofing agent and
A nozzle unit to which the anti-scattering agent is supplied from the tank and ejects the anti-scattering agent,
A support portion that supports the tank and the nozzle unit, and
A lifting portion for lifting and moving the support portion and
It has an operation unit that can remotely control the nozzle unit.
A plurality of outlets for ejecting the anti-scattering agent in a substantially horizontal direction are arranged in the nozzle unit at intervals from each other .
The support portion further has an arm rotatably supported below the tank about a rotation axis extending in a substantially horizontal direction.
The arm has a state in which the base end portion is connected to the rotation shaft and the tip portion protrudes downward from the base end portion in the vertical direction, and the tip portion protrudes substantially horizontally from the base end portion. It is configured to be rotatable between the state and the state
The nozzle unit is an anti-scattering agent spraying device, which is mounted on the tip of the arm . The arms, shatterproof agent diffusing equipment according to claim 1 in which the outer shape in plan view, wherein the go smaller than the outer shape of the support portion. The anti-scattering agent spraying device according to claim 1 or 2, further comprising a swivel portion that swivels the support portion.

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