JP6916226B2 - Mist spraying system and mist spraying method - Google Patents

Description

The present invention relates to a mist spraying system and a mist spraying method.

Patent Document 1 discloses a spray cooling system that cools a work space by spraying tap water on the top floor (work space without a roof) in the middle of constructing a building having a plurality of floors. In this system, the temperature of the top floor of a building exposed to direct sunlight is lowered by spraying tap water to improve the environment for construction work on the top floor.

Japanese Unexamined Patent Publication No. 2008-127804

However, in the spray cooling system of Patent Document 1, a spray nozzle for spraying tap water is connected to the tip of a pipeline extending from the ground to the top floor of the building. In addition, the pipeline will be installed along the scaffolding surrounding the building. For this reason, it is troublesome for workers to carry and move spraying devices such as spray nozzles and pipelines every time the height position of the top floor changes in building construction or demolition.

The present invention has been made in view of the above-mentioned problems, and provides a mist spraying system and a mist spraying method capable of easily moving a spraying device to the top floor of a building under construction or demolition. The purpose.

In order to achieve the above object, the mist spraying system according to the present invention includes a base portion, a mast extending vertically upward from the base portion, and at least a crane body, and is vertically movablely attached to the mast. A tower crane provided with a movable portion, and a mist spraying device attached to the vertically movable portion and spraying atomized water capable of cooling the space toward a space below the crane main body are provided . The vertically movable portion includes an elevating device for moving the mast and the crane body in the vertical direction with respect to the building, and the elevating device is arranged under the crane body and is attached to the crane body. On the other hand, the mist spraying device is provided on the elevating device so as to be movable in the vertical direction.
Further, the mist spraying system according to the present invention includes a base portion, a mast extending vertically upward from the base portion, and a vertically movable portion that includes at least a crane body and is vertically movable with respect to the mast. The vertically movable part is provided with a tower crane and a mist spraying device which is attached to the vertically movable part and sprays mist-like water which is attached to the vertically movable part and can cool the space below the crane main body. A lifting device for moving the crane body in the vertical direction with respect to the mast is provided, and the lifting device is arranged under the crane body and can be moved in the vertical direction with respect to the crane body. The mist spraying device is provided in the elevating device.

Further, in the mist spraying method according to the present invention, the mist spraying system is used, and the mist spraying device is moved up and down according to a change in the height position of the top floor of the building based on the progress of construction or dismantling of the building. It is characterized in that it is moved in the vertical direction with respect to the mast together with the movable portion and arranged at a position spaced above the top floor.

According to the present invention, the mist spraying device (spraying device) can be easily moved to the top floor of a building under construction or demolition.

It is a side view which shows the state which attached the mist spraying system by one Embodiment of this invention to the building under construction. It is a side view which shows the state after constructing a plurality of floors of a building from the state shown in FIG. It is a side view which shows the main part of the mist spraying system of FIGS. It is a top view which shows the main part of the mist spraying system of FIGS. It is a figure explaining the climbing method of the tower crane provided with the mist spraying system of FIGS. It is a figure explaining the climbing method of the tower crane provided with the mist spraying system of FIGS. It is a figure for demonstrating the effect of the mist spraying system by one Embodiment of this invention. It is a top view which shows the main part of the mist spraying system by another embodiment of this invention. It is a side view which shows the main part of the mist spraying system by another embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 8.
As shown in FIGS. 1 and 2, the mist spraying system 1 according to the present embodiment includes a tower crane 2 and a mist spraying device 3. The tower crane 2 is mainly used for the construction of the building B having a plurality of floors (the construction of the building B in which the top floor TF of the building B becomes higher as the work progresses). Reference numerals F1 to F7 in FIGS. 1, 2, 5 to 7 indicate the floor of the building B to be built or the floor of the building B to be built. The number of floors of building B is not limited to the number shown in the figure.

As shown in FIGS. 1 and 2, the tower crane 2 includes a base portion 4, a mast 5, and a vertically movable portion 6.
The base portion 4 is detachably fixed to the ground or a predetermined floor of the building B (in FIGS. 1 and 2, the beam 7 of the building B forming the first floor F1) by a bolt or the like.
The mast 5 extends vertically upward from the base portion 4. The mast 5 may be formed at least in a columnar shape. The mast 5 may be formed in a tubular shape having a cavity inside, for example. Further, the mast 5 may be configured to extend its height by sequentially adding mast pieces (single masts) having a predetermined length to the upper part, for example.

The vertically movable portion 6 is attached to the mast 5 so as to be vertically movable. The vertically movable portion 6 is configured to insert the mast 5. The vertically movable portion 6 includes a crane body 6A. The crane main body 6A is equipped with a swivel table 11 and a lifting machine such as a jib, and includes a lifting device 12 fixed on the swivel table 11. The crane body 6A (particularly the swivel table 11) is mainly arranged at the upper end of the mast 5.

In addition to the crane main body 6A, the vertical movable portion 6 of the present embodiment includes a lifting device 6B for moving the mast 5 and the crane main body 6A in the vertical direction with each other. The lifting device 6B is arranged below the crane body 6A. The elevating device 6B may be integrally provided with, for example, the crane body 6A. The lifting device 6B of the present embodiment is movable in the vertical direction with respect to the crane main body 6A. Further, by fixing the elevating device 6B to the lower side of the crane main body 6A, the mast 5 and the crane main body 6A can be moved to each other in the vertical direction.

Specifically, the elevating device 6B includes a plurality of detachable frames 21 arranged in the vertical direction and an elevating jack 22 provided between the two detachable frames 21. Each attachment / detachment frame 21 can be locked to the mast 5 by attaching / detaching a lock pin (not shown). The elevating device 6B is moved in the vertical direction with respect to the mast 5 by expanding and contracting the elevating jack 22 while alternately fixing or opening the two detachable frames 21 connected by the elevating jack 22 to the mast 5. be able to.

The elevating device 6B further includes a support base 23 provided below the plurality of attachment / detachment frames 21. The support base 23 is a portion supported by the top floor TF of the building B in the middle of construction, and can be fixed to the top floor TF.

The tower crane 2 of the present embodiment configured as described above moves upward as the height position of the top floor TF of the building B increases in the middle of construction according to the progress of building the building B. Moving. This point will be described with reference to FIGS. 1, 2, 5 and 6.

In FIG. 1, the floor with a low height position (first floor F1) is the top floor TF of the building B. After that, as shown in FIG. 2, when a plurality of floors (second floor F2, third floor F3, fourth floor F4) are sequentially constructed on the first floor F1, the top floor of the building B in the middle of construction is constructed. The TF changes to a higher position. In FIG. 2, the fourth floor F4 is the top floor TF.
Along with this, the length from the top floor TF of the building B to the crane body 6A becomes shorter. Therefore, when the construction is completed up to the floor of a predetermined height (for example, the fourth floor F4), the tower crane 2 (particularly the crane body 6A) is moved to a higher position as shown in FIGS. In the present embodiment, floor climbing is performed in which the entire tower crane 2 is moved upward.

In floor climbing, first, as shown in FIG. 5, the elevating device 6B is moved downward with respect to the mast 5 and placed on the top floor TF (fourth floor F4) of the building B under construction. Then, the elevating device 6B (particularly the support base 23) is fixed to the top floor TF.
Next, as shown in FIG. 6, the base portion 4 is removed from the first floor F1 of the building B, and the mast 5 is moved upward by the operation of the elevating device 6B. Finally, the floor climbing is completed by fixing the base portion 4 to an intermediate floor (third floor F3 in FIG. 6) which is higher than the first floor F1 and lower than the top floor TF.
After the floor climbing is completed, the support base 23 of the elevating device 6B may be removed from the top floor TF of the building B.

As shown in FIGS. 1 and 2, the mist spraying device 3 is attached to the vertically movable portion 6 of the tower crane 2 described above. The mist spraying device 3 sprays mist-like water W (mist) in a space below the crane body 6A. The mist-like water W is sprayed on the space on the top floor TF of the building B which is not covered with the roof. The mist-like water W sprayed from the mist spraying device 3 has the effect of removing heat from surrounding gases and substances when evaporating in the space where the mist spraying device 3 is sprayed, and lowering the temperature of the space. The mist-like water W sprayed from the mist spraying device 3 is preferably dry mist.

The mist spraying device 3 may be attached to, for example, the crane main body 6A, but in the present embodiment, it is attached to the elevating device 6B. The mounting position of the mist spraying device 3 in the lifting device 6B may be arbitrary. In the present embodiment, the mist spraying device 3 is attached to the lower end portion of the elevating device 6B as shown in FIGS. 1 and 3. Specifically, the mist spraying device 3 is mounted on the upper surface 23a of the support base 23.

Further, the mist spraying device 3 is configured to blow out mist-like water in one direction (blowing direction D1). The mist spraying device 3 may be configured, for example, to blow out the mist-like water W in one direction (blow-out direction D1) with high straightness, that is, to inject the mist-like water W to reach a long distance. .. Further, the mist spraying device 3 is configured to blow out the mist-like water W in a wide angle range centered on one direction (blow-out direction D1), that is, to spray the mist-like water W at a wide angle. May be done.

Then, as shown in FIGS. 3 and 4, the mist spraying device 3 is swingably attached to the elevating device 6B so that the mist-like water blowing direction D1 changes. In the present embodiment, as shown in FIG. 3, the mist spraying device 3 swings in the vertical direction with respect to the elevating device 6B. Further, as shown in FIG. 4, the mist spraying device 3 swings in the horizontal direction with respect to the elevating device 6B. The angle range in which the mist spraying device 3 swings in the vertical direction and the horizontal direction may be arbitrary.
In FIG. 4, a plurality (four in the illustrated example) of the mist spraying devices 3 are arranged in the circumferential direction centered on the mast 5, but the mast spraying device 3 is not limited to this.

The method of supplying water to the mist spraying device 3 attached to the elevating device 6B (up and down movable portion 6) may be arbitrary.
For example, the water tank may be transported from the ground to the vicinity of the mist spraying device 3. In this case, the water tank may be pulled up by using a lifting device 12 of the tower crane 2, a temporary elevator for construction, or the like, or may be pulled up by passing it through a cavity inside the mast 5.
Further, water may be supplied from the ground to the mist spraying device 3 by a pump. If the water pressure from the pump is insufficient, a plurality of pumps and water tanks may be used. That is, the water pulled up to a predetermined floor by the pump may be temporarily stored in the water tank, and the water may be pulled up from the water tank to a higher floor by another pump.

Next, the mist spraying method according to the present embodiment will be described. As the mist spraying method, the mist spraying system 1 of the present embodiment described above is used.
In the mast spraying method, as illustrated in FIGS. 1 and 2, the mast spraying device 3 is installed together with the elevating device 6B according to the change in the height position of the top floor TF of the building B based on the work progress of the building B. Move it up and down with respect to the mast 5. Then, the mist spraying device 3 is arranged at a position spaced above the top floor TF. Here, the height position of the mist spraying device 3 with respect to the top floor TF is a position where the mist-like water W can reach the space where the worker M works in the top floor TF (work space of the top floor TF). It should be.

In FIGS. 1 and 2, the height position of the mist spraying device 3 with respect to the top floor TF is such that the mist-like water W blown from the mist spraying device 3 in the direction along the top floor TF (horizontal direction) is the work of the top floor TF. It is set to reach the space. That is, the mist spraying device 3 is located near the top floor TF.
Therefore, in the present embodiment, a plurality of floors (second floor F2, third floor F3, fourth floor F4) are sequentially constructed on the first floor F1, and the top floor TF of the building B in the middle of construction is Each time the position is changed to a higher position, the mist spraying device 3 is moved upward by the elevating device 6B.

Further, as shown in FIG. 6, when the above-mentioned floor climbing is completed, the mist spraying device 3 is located on the top floor TF together with the elevating device 6B. Therefore, after the floor climbing, the mist spraying device 3 may be moved upward from the top floor TF by, for example, the elevating device 6B.
At this time, the mist spraying device 3 may be located near the top floor TF, for example, as shown in FIG. In this case, the mist-like water blown out from the mist spraying device 3 in the horizontal direction can reach the work space of the top floor TF.
Further, the mist spraying device 3 may be located far upward from the top floor TF, as shown in FIG. 7, for example. In this case, by swinging the mist spraying device 3 with respect to the elevating device 6B so that the mist-like water blowing direction D1 faces downward, the mist-spraying device 3 blows out the mist-like water. It is possible to reach the work space of the top floor TF.

As described above, according to the mist spraying system 1 and the mist spraying method of the present embodiment, the mist spraying device 3 is attached to the vertically movable portion 6 of the tower crane 2. Here, the height position of the vertically movable portion 6 (particularly the crane body 6A) of the tower crane 2 is the top floor TF based on the construction work progress of the building B, for example, as shown in FIGS. It can be changed according to the change in the height position of. Further, the vertically movable portion 6 is arranged at a position spaced above the top floor TF. As a result, the mist spraying device 3 can be easily moved to the top floor TF of the building B by the vertically movable portion 6.
Further, since it is not necessary to perform a single operation of moving only the mist spraying device 3 to the top floor TF of the building B, it is possible to reduce the work man-hours at the work site.

Further, according to the mist spraying system 1 of the present embodiment, the mist spraying device 3 is provided in the elevating device 6B which is movable in the vertical direction with respect to the crane main body 6A among the vertical movable portions 6. Therefore, for example, as shown in FIGS. 1 and 2, the height position of the mist spraying device 3 with respect to the top floor TF of the building B can be freely set regardless of the height position of the crane main body 6A. That is, the mist spraying device 3 can be easily arranged at a height position suitable for cooling the top floor TF of the building B with the mist-like water W.

Further, according to the mist spraying system 1 of the present embodiment, the mist spraying device 3 is provided so as to be swingable with respect to the vertically movable portion 6 so that the blowing direction D1 of the mist-like water W changes. By swinging the mist spraying device 3, mist-like water can be sprayed over a wider range. That is, it is possible to further improve the working environment of the top floor TF of the building B by cooling a wider range of space (work space on the top floor TF).

Further, according to the mist spraying system 1 of the present embodiment, the mist spraying device 3 is attached to the vertically movable portion 6 so that the mist-like water blowing direction D1 changes in the vertical direction. Therefore, even if the height position of the mist spraying device 3 with respect to the top floor TF changes as the vertically movable portion 6 moves, mist-like water can be blown out toward an appropriate area of the top floor TF.
For example, when the mist spraying device 3 is located far above the top floor TF, the mist spraying device 3 is swung so that the blowing direction D1 faces downward, as illustrated in FIG. Then, the mist-like water can reach the TF on the top floor.
When the mist spraying device 3 is located close to the top floor TF, the mist spraying device 3 is installed so that the blowing direction D1 is along the surface of the top floor TF, as shown in FIGS. By rocking, the mist-like water can reach farther in the top floor TF.

Further, according to the mist spraying system 1 of the present embodiment, the mist spraying device 3 is attached to the vertically movable portion 6 so that the mist-like water blowing direction D1 changes in the horizontal direction. As a result, even if the number of mist spraying devices 3 is small, mist-like water can be sprayed over a wide range around the mast 5. That is, it is possible to further improve the working environment of the top floor TF of the building B by cooling a wider range of space (work space on the top floor TF). It is also possible to spray mist-like water toward a desired region (local region) around the mast 5. Thereby, a desired region of the top floor TF can be cooled.

Although the details of the present invention have been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

In the above embodiment, the elevating device 6B to which the mist spraying device 3 is attached is formed on each floor of the building B so as not to pass through the hole through which the mast 5 is inserted, but the present invention is not limited to this. The mist spraying device 3 and the elevating device 6B to which the mist spraying device 3 is attached may be configured to pass through holes formed in each floor of the building B, for example. In this case, the mist spraying device 3 can spray the mist-like water on the floors below the top floor TF.

In the present invention, the mist spraying device 3 may be provided so as to be movable in the circumferential direction around the mast 5, for example, as shown in FIG. In FIG. 8, the mist spraying device 3 is provided on the upper surface 23a of the support base 23 and is provided so as to move along the rail 24 extending in the circumferential direction. That is, the mist spraying device 3 can move in the circumferential direction with respect to the elevating device 6B (support base 23). In FIG. 8, the rail 24 corresponding to the same mist spraying device 3 is formed only in a part in the circumferential direction, whereby the mist spraying device 3 reciprocates within a predetermined range in the circumferential direction. In FIG. 8, a plurality (two in the illustrated example) of the mist spraying devices 3 are arranged in the circumferential direction centered on the mast 5, but the mast spraying device 3 is not limited to this.
In the mist spraying device 3, for example, a part of the lifting device 6B (for example, the support base 23) to which the mist spraying device 3 is attached rotates with respect to the other part of the lifting device 6B, the mast 5, and the like. It may be movable in the direction. Further, even if the mist spraying device 3 is configured to be movable in the circumferential direction, the mist spraying device 3 swings in the vertical direction or the horizontal direction with respect to the vertically movable portion 6, for example, as in the above embodiment. It may be installed as possible.

As illustrated in FIG. 8, in the configuration in which the mist spraying device 3 is provided on the vertically movable portion 6 so as to be movable in the circumferential direction around the mast 5, the same effect as that of the above embodiment is obtained. That is, even if the number of mist spraying devices 3 is small, mist-like water can be sprayed over a wide range around the mast 5. Therefore, it is possible to cool a wider range of space (work space on the top floor TF) and further improve the work environment of the top floor TF of the building B.

In the present invention, the mist spraying device 3 is not limited to being mounted on the elevating device 6B, and may be attached so as to be suspended from the lower end portion of the elevating device 6B, for example, as shown in FIG.

In the present invention, the mist spraying device 3 may be attached to the vertically movable portion 6 so as to be vertically movable, for example, on the lower side of the vertically movable portion 6. The structure for moving the mist spraying device 3 up and down with respect to the vertically movable portion 6 is, for example, a wire for suspending the mist spraying device 3 below the vertically movable portion 6 and a wire provided on the vertically movable portion 6 for winding the wire. It may consist of a winch that moves back and forth.
In such a configuration, the mist spraying device 3 can be moved in the vertical direction more quickly than in the case where the vertical movable portion 6 is moved in the vertical direction. Further, since the mist spraying device 3 can be quickly moved downward with respect to the vertically movable portion 6, maintenance and inspection of the mist spraying device 3 can be easily performed.

The mist spraying system and mist spraying method of the present invention are not limited to being applied to the construction of the building B. It may be applied to the demolition work of the building B).

1 Mist spraying system 2 Tower crane 3 Mist spraying device 4 Base part 5 Mast 6 Vertical movable part 6A Crane body 6B Lifting device 11 Swing stand 12 Lifting device 23 Support stand 24 Rail D1 Blow-out direction W Mist-like water B Building D1 Blow-out Direction TF Top floor W Mist-like water

Claims (8)

A tower crane including a base portion, a mast extending vertically upward from the base portion, and a vertically movable portion that includes at least a crane body and is vertically movable with respect to the mast.
A mist spraying device attached to the vertically movable portion and spraying mist-like water capable of cooling the space toward a space below the crane body is provided .
The vertically movable portion includes an elevating device for moving the mast and the crane body in the vertical direction with respect to the building.
The elevating device is arranged under the crane main body and is movable in the vertical direction with respect to the crane main body.
A mist spraying system in which the mist spraying device is provided in the elevating device . The vertically movable portion includes an elevating device for moving the crane body in the vertical direction with respect to the mast.
The elevating device is arranged under the crane main body and is movable in the vertical direction with respect to the crane main body.
The mist spraying system according to claim 1 , wherein the mist spraying device is provided in the elevating device. A tower crane including a base portion, a mast extending vertically upward from the base portion, and a vertically movable portion that includes at least a crane body and is vertically movable with respect to the mast.
A mist spraying device attached to the vertically movable portion and spraying mist-like water capable of cooling the space toward a space below the crane body is provided .
The vertically movable portion includes an elevating device for moving the crane body in the vertical direction with respect to the mast.
The elevating device is arranged under the crane main body and is movable in the vertical direction with respect to the crane main body.
A mist spraying system in which the mist spraying device is provided in the elevating device . The mist spraying device is configured to blow out mist-like water in one direction, and is swingably attached to the vertically movable portion so that the direction in which the mist-like water is blown out changes. The mist spraying system according to any one of claims 3. The mist spraying system according to claim 4, wherein the mist spraying device is attached to the vertically movable portion so that the blowing direction of mist-like water changes in the vertical direction. The mist spraying system according to claim 4 or 5, wherein the mist spraying device is attached to the vertically movable portion so that the blowing direction of mist-like water changes in the horizontal direction. The mist spraying system according to any one of claims 1 to 6, wherein the mist spraying device is provided so as to be movable in the circumferential direction around the mast. A mist spraying method using the mist spraying system according to any one of claims 1 to 7.
The mist spraying device is moved up and down with respect to the mast together with the vertically movable portion in response to a change in the height position of the top floor of the building based on the progress of construction or demolition of the building, and the top floor is said. A mast spraying method in which the mast is placed at a space above.

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