JP5465947B2 - Watering screen equipment - Google Patents

Description

  The present invention relates to a water spray screen device that sprays water on a screen outdoors or indoors and cools an outdoor space or indoor space by vaporization heat or radiant cooling heat accompanying water evaporation.

  Conventionally, as a technique for cooling an outdoor space, for example, mist spraying in which water is made into a fine mist and sprayed in the air is known. In addition, the pavement is designed to retain the water in the porous pavement block, the sand layer or the roadbed under the porous pavement block, and to ooze the water to the surface of the pavement block by the capillary action of the pavement block material to obtain the water hitting effect. The road is also known.

  However, mist spraying is easily affected by the wind, and the mist is diffused by the wind and the cooling effect is significantly reduced. Moreover, in the paved road aiming at the water hitting effect, the water that oozes out on the surface of the paved block only reduces the temperature of the paved block having a large heat capacity due to the heat of vaporization. Therefore, neither of the above prior arts can effectively cool the outdoor space.

  On the other hand, for example, a cooling curtain or a net-like shield as disclosed in Patent Document 1 and Patent Document 2 has been proposed. In the conventional configuration described in Patent Document 1, water is supplied to the upper part of the curtain hung outdoors, and the entire curtain is moistened. And water is evaporated from the whole curtain, and ambient air is cooled by the heat of vaporization.

  Further, in the conventional configuration described in Patent Document 2, when the water is supplied to the upper part of the mesh shield used as a blind or a shutter, the entire mesh shield is wetted. And water evaporates from the whole mesh shield, and ambient air is cooled with the heat of vaporization.

Utility Model Registration No. 3034820 JP 2008-25142 A

  In the configuration as described above, it is conceivable that some kind of display is provided on the surface of the curtain or mesh shield, and the curtain or mesh shield is used as a screen having a display function. In such a case, it is preferable in terms of appearance to conceal the watering nozzle. Therefore, it is preferable to make the screen annular because the watering nozzle can be concealed inside. However, such a configuration is very complicated because the apparatus needs to be disassembled when the screen is attached to and detached from the apparatus.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a watering screen device that can be easily attached and detached and can be easily maintained.

In order to achieve the above object, the present invention provides a watering device that is supported in parallel with the frame and that stretches a screen between rotating shafts rotated by a motor and sprays water on the screen. In the watering screen device, the screen is constituted by a belt-like body, both ends of the belt-like body are connected by fasteners so as to be opened, and the screen is constituted in an annular shape as a whole. Arranged
It is characterized by watering the screen from the back side .

  Therefore, in the present invention, when the rotation shaft is rotated by the motor, the screen stretched between the rotation shafts is moved around. At the same time, water is sprayed on the screen by the watering device, and the entire surface of the screen is wetted. As the screen circulates, water is vaporized by the air in contact with the screen, and the heat of vaporization is taken away from the air. At the same time, radiant cooling is given to the surroundings. Therefore, water can be appropriately retained on the entire surface of the wide area screen, and the surroundings can be effectively cooled.

  In addition, in the present invention, the annular screen is circulated. For this reason, when a display is provided on the surface of the screen, the display can be moved, and a high display effect can be obtained. Moreover, since the screen is formed in an annular shape, if a watering nozzle or the like is arranged inside the screen, the watering nozzle or the like can be concealed and a good appearance can be obtained. In addition, the screen is configured so as to form a ring as a whole by connecting both ends of the belt-like body with fasteners. For this reason, when attaching the screen in a stretched state between the rotating shafts or when removing the screen from between the rotating shafts for replacement or the like, the screen is handled as a single strip by opening the fastener. Can do. Therefore, the screen can be easily attached and detached. When performing maintenance, the work can be performed easily.

  In the above configuration, the fastener may be a slide fastener. When configured in this manner, the screen can be manufactured at low cost using a commercially available slide fastener.

Further, in the above configuration, the screen is stretched in the vertical direction, and cleaning means for cleaning the surface of the screen over the entire width along the circumference of the screen below the watering device of the frame. It is good to provide. When comprised in this way, while rotating the screen, the surface of the screen can be cleaned by the cleaning means, and the fastener can also be cleaned. Therefore, when the screen is attached or detached, the fastener can be easily opened and closed.

  As described above, according to the present invention, it is possible to easily attach and detach the screen and easily perform maintenance and the like.

The perspective view which shows the watering screen apparatus of 1st Embodiment. The principal part longitudinal cross-sectional view of the watering screen apparatus of FIG. The partial expanded sectional view in the 3-3 line of FIG. FIG. 4 is a partially enlarged cross-sectional view taken along line 4-4 of FIG. The perspective view which expands and shows the screen in the watering screen apparatus of FIG. The principal part perspective view which expand | deploys and shows the screen of FIG. (A) is a principal part perspective view which shows the screen of 2nd Embodiment in the unfolded state, (b) is a simplified side view of a screen. The principal part perspective view which shows the watering screen apparatus of 3rd Embodiment.

(First embodiment)
Below, 1st Embodiment of the watering screen apparatus which actualized this invention is described according to FIGS. First, the basic structure of the watering screen device of this embodiment will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the watering screen device of this embodiment includes a box-shaped support base 28 and a frame 21 installed on the upper surface of the support base 28. The frame 21 is installed between a pair of left and right support columns 22 and 23 extending in parallel with each other, an upper frame portion 24 installed between the upper end portions of both support columns 22 and 23, and a lower end portion of both support columns 22 and 23. The lower frame portion 25 is configured to form a square frame shape as a whole. Here, the left and right refer to the left and right in the drawing for the sake of convenience, and are not limited.

  As shown in FIG. 4, both the struts 22 and 23 are made of a stainless steel material having a C-shaped cross section, and are arranged in a state where the opening portion is on the outside. A cover 26 is detachably attached to the outer openings of the columns 22 and 23 by a plurality of screws 27. As shown in FIG. 3, the upper frame portion 24 is made of a stainless steel material having a C-shaped cross section, and is arranged with its opening portion on the lower side. The lower frame portion 25 is made of a stainless steel material having a C-shaped cross section, and is arranged with its opening portion facing upward. The lower frame portion 25 constitutes a gutter member for receiving water sprinkled from a sprinkler 44 described later.

  Mounting plate portions 22a and 23a are fixed to the lower ends of the support columns 22 and 23 by welding. Then, as shown in FIG. 3, the attachment plate portions 22 a and 23 a of the support columns 22 and 23 are attached to the upper surface of the support base 28 by a plurality of bolts 29, so that the lower portion of the frame 21 and the support base 28 can be attached and detached. It is fixed to.

  A cylindrical upper rotary shaft 30 is supported between the upper end portions of both supports 22 and 23 in the upper frame portion 24 so as to be rotatable and located in a horizontal plane. A cylindrical lower rotating shaft 31 is supported between the lower end portions of both supports 22 and 23 in the lower frame portion 25 so as to be rotatable and to extend in parallel with the upper rotating shaft 30. An annular screen 32 is stretched between the rotary shafts 30 and 31.

  A motor 33 is supported on the inner surface of the upper end of the left column 22 in a state where almost the entire motor 33 is accommodated in the upper rotary shaft 30. Then, when the upper rotary shaft 30 is rotated by the motor 33, the screen 32 is circulated between the rotary shafts 30 and 31. A pair of L-shaped guide plates 54 are fixed to the inner side surfaces of the support columns 22 and 23 between the rotary shafts 30 and 31 so as to extend in parallel in the vertical direction. These guide plates 54 are engaged with the back side (inner surface side) of the left and right end edges of the screen 32 to guide the circumferential movement of the screen 32. The left and right width end portions of the screen 32 are positioned by both end flange portions 55 of both rotary shafts 30 and 31, and the left and right positions of the screen 32 are regulated.

  An operation panel 34 is provided on the outer surface of the left column 22. On this operation panel 34, a switching knob 35 for switching the operation of the apparatus between automatic and manual, an operation start button 36, an operation stop button 37, a normal rotation button 38 for normal rotation of the screen 32, a screen A reverse rotation button 39 for reversing 32 and an emergency stop button 40 for emergency stop of the operation of the apparatus are provided.

  As shown in FIG. 4, two power supply lines 41 for driving power supply and control for the motor 33 and the operation panel 34 are accommodated in the left column 22. On the left side surface of the support base 28, a connector 42 for the both feed lines 41 is provided. The external power supply line 43 is connected to both the connectors 42 to supply power to the motor 33 and the operation panel 34 via the power supply line 41.

  A watering device 44 is supported between the support columns 22 and 23 in the surrounding area of the screen 32. The watering device 44 includes a square pipe-shaped water guide pipe 45 made of stainless steel provided between the support columns 22 and 23, and a plurality of water pipes projecting from the outer peripheral surface of the water pipe 45 at predetermined intervals in the length direction. Mist injection nozzle 46. A water supply hose 47 for supplying water to the water conduit 45 of the watering device 44 is accommodated in the right column 23. A connection port 48 is provided on the right side surface of the support base 28, and a lower end portion of the water supply hose 47 is connected to the connection port 48 in the support base 28. Further, an external water supply hose 49 extending from a general water supply (not shown) is connected to the connection port 48.

  Then, an unillustrated electromagnetic valve connected to the water supply hose 47 is opened in the right column 23 to supply water into the water conduit 45 of the watering device 44. For this reason, water is sprayed in a mist form from each mist spray nozzle 46 to the back side of the front surface of the screen 32. And when this water is vaporized, the heat of vaporization is taken from the air and the surrounding air is cooled. Further, the surface of the screen 32 becomes a cold radiation surface, and a radiation cold heat effect is given to the surroundings.

  A drainage hose 50 as a drainage part is connected to the lower left part of the lower frame part 25 of the frame 21 via a joint 51. A connection port 52 is provided on the left side surface of the support base 28, and a lower end portion of the drainage hose 50 is connected to the connection port 52 in the support base 28. Further, a drainage extension hose 53 extending to a drainage channel (not shown) is connected to the connection port 52. Then, the water sprayed from the watering device 44 to the screen 32 and flowing down along the front surface or the back surface of the screen 32 is collected in the lower frame portion 25 as a gutter member, and then passed through the drainage hose 50. Discharged.

Next, the configuration of the screen 32 will be described in detail.
As shown in FIGS. 5 and 6, the screen 32 is composed of a single belt-like body 61 made of a synthetic resin warp and weft excellent in water resistance such as vinyl chloride. A narrow gap of about 0.3 to 3 mm is formed between the warp and the weft of the band 61. Fasteners 62 are provided between both end edges in the length direction (circumferential direction) of the belt-like body 61. Then, both end edges in the length direction of the belt-like body 61 are connected by the fastener 62, and the screen 32 is configured to have an annular shape as a whole.

  As shown in FIGS. 5 and 6, the fastener 62 is constituted by a slide fastener 62A. The slide fastener 62A includes a plurality of service teeth 63 arranged on one end edge of the belt-like body 61 and a plurality of service teeth 63 arranged on the other end edge of the belt-like body 61 so as to be detachable from the service tooth 63. A service tooth 64, a slider 65 for connecting and separating the service teeth 63, 64, and a retainer 68 that can be connected and separated at one end are provided. The engagement teeth 63 and 64, the slider 65, and the retainer 68 of the slide fastener 62A are made of synthetic resin.

  On the other hand, as shown in FIG. 3, a cleaning brush 66 as a pair of cleaning means is attached to both side edges of the opening of the lower frame portion 25 in the frame 21 via a brush holder 67. Each cleaning brush 66 extends over the entire length in the width direction of the screen 32 so as to contact the entire surface of the screen 32. When the screen 32 is moved between the rotary shafts 30 and 31 by the motor 33, the surface of the screen 32 is cleaned over the entire width by the cleaning brushes 66. In this case, the slide fastener 62 </ b> A on the screen 32 is also cleaned over the entire length by each cleaning brush 66.

Next, the operation of the watering screen device configured as described above will be described.
Now, when the operation start button 36 on the operation panel 34 is turned on in a state where the watering screen device is installed outdoors or the like, the upper rotary shaft 30 is rotated by the motor 33 so that the rotary shafts 30 and 31 are separated. The screen 32 stretched around is moved around. At the same time, water is sprayed in the form of mist from the mist spray nozzle 46 of the water sprinkler 44 to the back side of the screen 32, and the entire surface of the screen 32 is wetted. As the screen 32 circulates, water is vaporized by the air contacting the screen 32, and the heat is removed from the air, thereby cooling the air. At the same time, the surface of the screen 32 becomes a cold radiation surface, and radiation cold heat is applied from the screen 32 to the surroundings.

  In this case, the water sprayed on the screen 32 from the mist spray nozzle 46 of the watering device 44 and flowing down along the surface of the screen 32 is collected in the lower frame portion 25 as a dredging member, and then drained hose. It is discharged to the outside through 50. Therefore, it can be avoided that the water flowing down from the screen 32 collects or spreads around the place where the watering screen device is installed, and hinders walking or the like.

  Further, when the screen 32 is removed from the rotary shafts 30 and 31 when the screen 32 is replaced, the fastener 62 is opened when the slide fastener 62A is moved in the opening direction, and the retainer 68 is moved. If separated, the screen 32 becomes a single strip 61 as shown in FIG. For this reason, even if the screen 32 is formed in an annular shape, the screen 32 is handled as a single belt-like body 61 without performing the troublesome work of removing the rotary shafts 30 and 31 from the support posts 22 and 23 of the frame 21. The rotary shafts 30 and 31 can be easily detached. On the contrary, when the screen 32 is annular and cannot be formed into a single strip, when the screen 32 is removed during maintenance such as replacement of the screen 32, the rotary shafts 30 and 31 are connected to the left and right support columns. It is necessary to remove from 22 and 23, and it is very complicated.

  Therefore, even when performing maintenance of the water spraying device 44 and the rotating shafts 30, 31, etc., disposed in the surrounding area of the screen 32, the slide fastener 62 </ b> A is moved open and the retainer 68 is separated, The periphery of the mechanism is easily exposed. Therefore, maintenance of the mechanical parts such as the watering device 44 and the rotary shafts 30 and 31 can be easily performed without being obstructed by the screen 32.

Therefore, in this embodiment, the following effects can be obtained.
(1) In this embodiment, as the rotating shaft 30 is rotated by the motor 33, the screen 32 is circulated between the rotating shafts 30 and 31 so that the screen 32 is sprinkled with water. It has become. For this reason, water can be appropriately supplied to the entire surface of the screen 32 having a large area. Therefore, it is possible to efficiently vaporize water from the entire surface of the screen 32, effectively depriving the heat of vaporization from the air, supplying radiant cold heat to the surroundings, and obtaining a high cooling capacity.

  (2) In this embodiment, the screen 32 is formed in an annular shape. For this reason, the front and back of the screen 32 can be used as display surfaces, and the display effect can be enhanced by exchanging the front and rear displays by moving the screen 32 around.

  (3) In this embodiment, the screen 32 is formed in an annular shape, and the watering device 44 and the like are disposed therein. Therefore, the watering device 44 is not exposed to the outside, and the appearance as the watering screen device is improved. it can.

  (4) In this embodiment, the screen 32 is configured by the strip-shaped body 61 and is configured so as to form a ring as a whole by connecting both ends of the strip-shaped body 61 by the fasteners 62. For this reason, when the screen 32 is detached from the rotary shafts 30 and 31 at the time of replacement or the like, the screen can be handled as a single strip 61 by opening the fastener 62. Therefore, even if the screen 32 is configured in a ring shape, the detaching operation can be easily performed. Moreover, even when performing maintenance on the mechanical parts such as the rotary shafts 30 and 31 and the water sprinklers 44 arranged in the surrounding area of the screen 32, by opening the fastener 62, the periphery of the mechanical part is exposed, Maintenance can be performed easily.

  (5) In this embodiment, the fastener 62 is constituted by a slide fastener 62A. For this reason, a commercially available slide fastener can be used and the screen 32 can be manufactured at low cost.

  (6) In this embodiment, a cleaning brush 66 is provided on the lower frame portion 25 of the frame 21 to clean the surface of the screen 32 over its entire width as the screen 32 rotates. For this reason, the surface of the screen 32 can be cleaned by the cleaning brush 66 and the fastener 62 can be cleaned at the same time when the screen 32 rotates. Therefore, when the fastener 62 is configured by the slide fastener 62A, it is possible to prevent dust from being deposited in the gap between the engagement teeth 63, 64 of the fastener 62. Therefore, when attaching and detaching the screen 32, the slider 65 of the slide fastener 62A can be lightly opened and closed, and fastener damage and the like due to opening and closing can be prevented.

  (7) In this embodiment, the screen 32 is cleaned by the cleaning brush 66 provided at the opening edge of the lower frame portion 25. For this reason, the water after being cleaned by the cleaning brush 66 does not fall on the screen 32, and the contamination of the screen 32 can be delayed.

(Second Embodiment)
Next, a second embodiment of the watering screen device embodying the present invention will be described focusing on the differences from the first embodiment.

  In this 2nd Embodiment, as shown to Fig.7 (a) (b), the fastener 62 for connecting between the both ends of the strip | belt-shaped body 61 of the screen 32 is comprised by the surface fastener 62B. The surface fastener 62B is provided at the other end edge of the belt-like body 61 so as to correspond to the first fastener piece 71 of the belt-like shape provided at one end edge of the belt-like body 61 and the first fastener piece 71 so as to be detachable. And a belt-like second fastener piece 72. And the both ends edge of the strip | belt-shaped body 61 is connected by engagement of both the fastener pieces 71 and 72, and the screen 32 is comprised so that the whole may be cyclic | annular. In FIG. 7 (b), the first and second fastener pieces 71 and 72 are drawn thickly and schematically in order to clarify the configuration, but in actuality, the thickness is negligible.

Therefore, the second embodiment has the following effects.
(8) In the second embodiment, substantially the same effect as that described in the first embodiment can be obtained. In the second embodiment, since the fastener 62 is constituted by the surface fastener 62B, the structure is simple and the opening / closing operation of the surface fastener 62B, that is, the attachment / detachment of the screen 32 can be easily performed. .

(Third embodiment)
Next, a third embodiment of the watering screen device embodying the present invention will be described with a focus on differences from the first embodiment.

  In the third embodiment, as shown in FIG. 8, a pair of rotating shafts 30, 31 are arranged so as to be rotatable about a vertical axis, and a screen 32 circulates in the lateral direction between the rotating shafts 30, 31. It is stretched to do. As in the case of the first embodiment, the screen 32 is constituted by a single belt-like body 61, and both end edges of the belt-like body 61 are connected by fasteners 62 including slide fasteners 62A. Is configured to have an annular shape. The slider 65 of the fastener 62 is disposed on the lower end side when the fastener 62 is closed. Therefore, it is possible to avoid a situation where the fastener 62 is naturally opened. The rotating shafts 30 and 31 are supported between both ends of the upper and lower frame portions 24 and 25.

Therefore, also in the third embodiment, substantially the same effect as that described in the first embodiment can be obtained.
(Example of change)
In addition, this embodiment can also be changed and embodied as follows.

In each of the above embodiments, three or more rotating shafts are arranged in parallel with a mutual interval, and an annular screen 32 is stretched around these rotating shafts so as to be able to go around.
-In the said 3rd Embodiment, the fastener 62 for connecting between the both ends of the strip | belt-shaped body 61 of the screen 32 is comprised by the surface fastener 62B similar to 2nd Embodiment.

-Connect two or more strips as screens 32 via fasteners.
-Use a screen 32 with another structure such as a net or knitted fabric.
The cleaning brush 66 is provided at the opening edge of the upper frame part 24 or at the opening edges of the upper and lower frame parts 24 and 25.

(Another technical idea)
Furthermore, technical ideas other than the claims grasped by the above embodiment will be described below together with their effects.

(A) The sprinkling screen device according to any one of claims 1 to 3, wherein the fastener and the slider of the fastener are made of a synthetic resin.
According to this configuration, the screen can be configured to be lightweight, and the slider can be opened and closed smoothly.

(B) The watering screen device according to any one of claims 1 to 3, wherein the fastener is configured by a surface fastener.
According to this configuration, the structure is simple, and the screen can be easily attached and detached by engaging and disengaging the surface fastener.

(C) A sprinkler screen device according to claim 3, wherein a scissors member is provided at a lower portion of the rotating portion of the screen, and the cleaning means is supported by the scissors member.
In this way, the water droplets dropped by the cleaning means do not fall on the screen, and the screen can be less contaminated.

  DESCRIPTION OF SYMBOLS 21 ... Frame, 22 ... Left column, 23 ... Right column, 24 ... Upper frame part, 25 ... Lower frame part, 30 ... Upper rotating shaft, 31 ... Lower rotating shaft, 32 ... Screen, 33 ... Motor, 44 ... Watering device 45 ... Watering member, 46 ... Mist spray nozzle, 61 ... Strip, 62 ... Fastener, 62A ... Slide fastener, 62B ... Hook fastener, 63, 64 ... Fitting tooth, 65 ... Slider, 66 ... Cleaning brush as cleaning means 71 ... 1st fastener piece, 72 ... 2nd fastener piece.

Claims (3)

In the watering screen device which is supported in parallel with the frame and stretches a screen between rotating shafts rotated by a motor, and a watering device for watering the screen is provided.
The screen is composed of a belt-like body, and both ends of the belt-like body are connected so as to be openable by fasteners, and the screen is constructed in an annular shape as a whole ,
The watering screen device is arranged in the screen and sprays water from the back surface to the screen. While stretching the screen in the vertical direction,
2. The watering screen device according to claim 1, further comprising cleaning means for cleaning the surface of the screen over its entire width as the screen circulates below the watering device of the frame. The watering screen device according to claim 1 or 2, wherein the fastener is configured by a slide fastener.

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