JP2013154319A - Spraying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spraying device in which an initial cost and a running cost are inexpensive and which can easily cope with the alteration of a space of an installing floor.SOLUTION: A spraying device has a plurality of head parts 34 dispersedly arranged in an installing floor 12, mixing air A and liquid L, and spraying mist M. The device has a plurality of blowers 36 arranged closer to the respective head parts 14 and supplying air A to the head parts 14 near the same. The device has a liquid supplying unit 18 supplying the liquid L to the plurality of head parts 14. The head parts 14 each are constituted of a plurality of spray nozzles 38, a manifold 40 for the air, and a manifold 42 for the liquid. The spraying nozzles 38 mix the air A and the liquid L and sprays the mist M from spraying openings 38a. The manifolds 40 for the air divide the flows of the air A supplied from the blowers 36 and convey the same to the individual spray nozzles 38. The manifolds 42 for the liquid divide the flows of the liquid supplied from a liquid supply device 18 and convey the same to the individual spray nozzles 38.

Description

  The present invention relates to a spraying device that generates a mist in which liquid and air are mixed, and more particularly, to a spraying device that includes a plurality of head portions that eject mist.

  Conventionally, in order to remove dust floating in the air and clean the air, there has been known a spraying device that generates mist-like mist, for example, a spraying device 10 shown in FIG. The spraying device 10 is a device that is installed on an elongated installation floor 12 in a building such as a factory and generates mist M in the installation floor 12. The head unit 14 ejects mist mixed with air and liquid, and a head The air supply device 16 supplies air to the unit 14 and the liquid supply device 18 supplies liquid to the head unit 14. The liquid is, for example, tap water.

  Here, seven head portions 14 are provided, and are attached in a straight line near the ceiling 12a of the installation floor 12 with a predetermined interval d. Each head unit 14 is provided with a spray nozzle (not shown) that mixes air and liquid to eject mist.

  The air supply device 16 includes a compressor 20 that generates compressed air and an air tank 22 that temporarily stores the compressed air, and is installed outdoors at one end in the longitudinal direction of the installation floor 12. Seven air pipes 24 are connected to the air tank 22, and the air in the air tank 22 is conveyed to each head unit 14 through each air pipe 24.

  The liquid supply device 18 is provided with a liquid tank 26 for temporarily storing a liquid such as tap water, and a pump 28 for supplying the liquid from the liquid tank 26 to the head unit 14, in the vicinity of the outdoor air supply device 16. Is installed. Seven liquid supply pipes 30 are connected to the pump 28, and are conveyed to each head unit 14 through each liquid supply pipe 30.

  As described above, in order to generate mist on the entire installation floor 12, the spray device 10 is mounted with a plurality of head portions 14 distributed at a predetermined pitch near the ceiling 12, supplying air to each head portion 14 and liquid Is supplied by each of the air supply device 16 and the liquid supply device 18.

  Moreover, as disclosed in Patent Document 1, there is a spray system that generates a mist of ozone-containing active water in order to deodorize and sterilize facilities. Since this spray system generates mist on the entire floor in the facility, a plurality of spray nozzles are distributed and installed near the ceiling at a predetermined pitch, and supply of air to each spray nozzle and supply of ozone-containing active water are performed. Each of the compressors and the vortex pump are used.

JP 2009-39218 A

  However, in the case of the conventional spraying device 10, since the air is supplied to all the head portions 14 with one air supply device 16, the larger the number of the head portions 14, the larger the capacity of the compressor 20 is necessary. Further, the larger the area of the installation floor 12, the longer the distance between the air supply device 16 and the head portion 14, the longer the air piping 24 connecting the air supply device 16 and the more bent portions depending on the installation location, and the greater the air pressure loss. Thus, the burden on the compressor 20 increases. In addition, after installation, the head portion 14 may be added to the installation floor 12 due to a layout change in the building or the like. Therefore, it is necessary to allow a certain amount of margin in the capacity of the compressor 20. Therefore, the compressor 20 must be selected to have a large size, and as a result, there is a problem that the equipment cost becomes high and a large space is required for installation. The same applies to the spray device of Patent Document 1.

  The present invention has been made in view of the above-described background art, and an object thereof is to provide a spray device that has low initial cost and low running cost and can easily cope with a change in the size of an installation floor.

  The present invention is arranged in a distributed manner on an installation floor, and a plurality of head portions that mix air and liquid and eject mist, and are arranged close to each head portion, and the air is placed on the adjacent head portions. A spraying device including a plurality of blowers for supplying the liquid and a liquid supply device for supplying the liquid to the plurality of head portions.

  The head unit mixes the air and the liquid and divides the plurality of spray nozzles that eject mist from a jet outlet and the air supplied from the blower and transports the air toward the individual spray nozzles. And a liquid manifold that divides the liquid supplied from the liquid supply device and conveys the liquid toward the individual spray nozzles.

  Further, the head part and the blower are attached near the ceiling of the installation floor in the building, and dust floating in the air is captured and lowered by the mist ejected from the head part.

  Since the spray device of the present invention is configured to provide a dedicated blower for each head unit that ejects mist, it is only necessary to prepare the same number of small blowers as the head unit. For example, when the number of head units is changed after installation But it can be easily handled. Furthermore, since the head portion and the blower are installed close to each other and the air pipe connecting the head portion and the blower is shortened, the pressure loss for supplying air can be minimized and air can be efficiently conveyed. Accordingly, it is not necessary to introduce a large compressor or the like, and the energy consumption during operation can be reduced, so that both the initial cost and the running cost can be kept low.

  In addition, the head part can be compactly configured by combining a predetermined spray nozzle, air manifold and liquid manifold, and the pair of blowers can be made compact, so it can be installed in a narrow space and mounting work is easy. is there.

It is the top view (a) which shows one Embodiment of the spraying apparatus of this invention, and a front view (b). It is the top view (a) explaining the head part and blower of this embodiment, and a front view (b). It is a schematic diagram explaining operation | movement of the spray nozzle of this embodiment. It is the top view (a) which shows the conventional spray apparatus, and a front view (b).

  Hereinafter, an embodiment of a spraying apparatus of the present invention will be described with reference to FIGS. Here, the same components as those of the conventional spray device 10 are denoted by the same reference numerals, and description thereof is omitted. The spraying device 32 according to this embodiment is installed in a work place for pulverizing waste in an industrial waste treatment facility, and generates mist M in the air on an installation floor 12, which is an elongated work place, as shown in FIG. There is a device that cleans the air. The spraying device 32 includes a head portion 34 that ejects mist M in which air A and liquid L are mixed, a blower 36 that supplies air A to the head portion 34, and a liquid supply device 18 that supplies liquid L to the head portion 34. It consists of and. The liquid A is tap water, for example.

  Here, seven head portions 34 are provided, and are mounted in a line in the vicinity of the ceiling 12 a of the installation floor 12 with a predetermined distance d. As shown in FIG. 2, the head portion 34 includes six spray nozzles 38, an air manifold 40 having six air branch pipes 40a, and a liquid manifold 42 having six liquid branch pipes 42a. The six spray nozzles 38, the air manifold 40, and the liquid manifold 42 are integrally assembled into one structure.

  The air manifold 40 has a bottomed cylindrical main body 40b to which an air pipe 44 to be described later is connected, and six air branch pipes 40a are radially extended on the peripheral surface of the main body 40b. Here, the air branch pipe 40a is a metal pipe and has a strength to attach and support the spray nozzle 38 at the tip. The air manifold 40 functions to distribute the air A conveyed to the main body 40b through the air pipe 44 into the six air branch pipes 40a substantially evenly.

  The liquid manifold 42 has a bottomed cylindrical main body 42b to which the liquid supply pipe 30 is connected, and is fixed in a state where one end surface is in contact with one end surface of the main body 40b of the air manifold 40. Yes. One end of each of the six liquid branch pipes 42a is connected to the peripheral surface of the main body 42b. Here, a flexible resin hose or the like is used. The liquid manifold 42 functions to distribute the liquid L conveyed to the main body 42b through the liquid supply pipe 30 approximately equally into the six liquid branch pipes 42a.

  As shown in FIG. 3, the spray nozzle 38 is formed with a jet port 38a at one end portion of a substantially cylindrical shape, and the opposite end portion is fitted and fixed to the tip end portion of the air branch pipe 42a. Furthermore, the tip of the liquid branch pipe 42a is connected to the side surface of the spray nozzle 38 in the vicinity of the ejection port 38a. The spray nozzle 38 serves to mix the air A transported through the air branch pipe 40a and the liquid L transported through the liquid branch pipe 42a and eject the mist M from the ejection port 38. Here, air A having a flow velocity that generates a negative pressure capable of sucking the liquid L into the ejection nozzle 38 is supplied from the blower 36, and is generated in a portion where the liquid nozzle pipe 42 a merges in the ejection nozzle 38. Due to the negative pressure, the liquid L in the liquid branch pipe 42a flows into the spray nozzle 38 and is sprayed in a mist form by the air flow. Therefore, since the pump 28 does not need the ability to inject the liquid L with the injection nozzle 38, the pump 28 may be smaller than that used in the conventional spray device 10. The liquid tank 26 may be omitted as long as a certain amount of liquid can be stably supplied to the pump 28.

  The blower 36 conveys air A through the air pipe 44 to the main body 40 b of the air manifold 40 of the head portion 34. The blower 36 only needs to be able to supply air A to the six spray nozzles 38 by one unit, so that a small one with a relatively small capacity can be selected. Here, the main body 42b of the liquid manifold 42 is integrally attached.

  Since the spraying device 32 having the above configuration is configured to provide a dedicated blower 36 for each head portion 42 that ejects the mist M, it is only necessary to prepare the same number of small blowers as the head portion 42. Even when the number of the head portions 42 is changed, it can be easily handled. In addition, since the head portion 42 and the blower 36 are installed close to each other and the air pipe 44 is very short, the pressure loss of the air A can be minimized and air can be conveyed efficiently. Accordingly, it is not necessary to introduce a large compressor or the like, and the energy consumption during operation can be reduced, so that both the initial cost and the running cost can be kept low.

  In addition, the head portion 34 has a compact structure formed by assembling a predetermined spray nozzle 38, an air manifold 40, and a liquid manifold 42. The pair of blowers 36 are also small, and can be installed in a narrow space. Installation work is also easy.

  Further, since the head unit 34 and the blower 36 are set and distributed in the vicinity of the ceiling 12a, and the dust floating in the air is captured and lowered by the mist M, the waste treatment facility on the installation floor 12 is provided. The head unit 34 and the blower 36 can be arranged at desired positions without being affected by the layout.

  The spray device of the present invention is not limited to the above embodiment. For example, the number of head portions can be freely set according to the width and shape of the installation floor, and may be attached to a wall surface other than the ceiling. Further, the number and arrangement of spray nozzles provided in one head part and the setting of the direction of the jet outlet can be freely set. For example, in the case of a spray device for a shower room that removes dust adhering to clothes by spraying a mist shower on the worker's body, a head unit is attached to the wall surface of each shower room, and the mist is jetted laterally. Can be considered. In addition, in the case of a spray device for mist curtains that prevents dust generated on the installation floor from scattering to the outside, a head unit is provided at each entrance / exit of the installation floor so that the mist is ejected vertically or horizontally. It is possible.

  Moreover, the head part should just generate | occur | produce the mist which mixed the air and the liquid, and the kind of spray nozzle and the mixing method are not ask | required. Moreover, the liquid to be used is selected according to the use of the spray device, and may be ozone-containing activated water in addition to tap water.

10, 32 Spraying device 12 Installation floor 18 Liquid supply device 26 Liquid tank 28 Pump 30 Liquid feed pipe 34 Head part 36 Blower 38 Spray nozzle 40 Air manifold 40a Air branch pipe 40b Main body 42 Liquid manifold 42a Liquid branch pipe 42b Body 44 Air piping A Air L Liquid M Mist

Hereinafter, an embodiment of a spraying apparatus of the present invention will be described with reference to FIGS. Here, the same components as those of the conventional spray device 10 are denoted by the same reference numerals, and description thereof is omitted. The spraying device 32 according to this embodiment is installed in a work place for pulverizing waste in an industrial waste treatment facility, and generates mist M in the air on an installation floor 12, which is an elongated work place, as shown in FIG. it is a device to clean the air. The spraying device 32 includes a head portion 34 that ejects mist M in which air A and liquid L are mixed, a blower 36 that supplies air A to the head portion 34, and a liquid supply device 18 that supplies liquid L to the head portion 34. It consists of and. The liquid A is tap water, for example.

Spray nozzle 38, as shown in FIG. 3, spout 38a is formed in a substantially cylindrical end portion, fitted to the opposite end to the distal end of the air branch pipe 4 0 a, is fixed Yes. Furthermore, the tip of the liquid branch pipe 42a is connected to the side surface of the spray nozzle 38 in the vicinity of the ejection port 38a. The spray nozzle 38 serves to mix the air A transported through the air branch pipe 40a and the liquid L transported through the liquid branch pipe 42a and eject the mist M from the ejection port 38. Here, the air A flow rate to generate a negative pressure capable of sucking the liquid L into the mists nozzle 38 is supplied from the blower 36, within the mists nozzle 38, a portion merges with the liquid branch pipe 42a Due to the generated negative pressure, the liquid L in the liquid branch pipe 42a flows into the spray nozzle 38 and is sprayed in the form of a mist by the air flow. Thus, the pump 28, since the ability to eject liquid L in mists nozzle 38 is not required, the pump 28 may in smaller ones than those used in conventional spray device 10. The liquid tank 26 may be omitted as long as a certain amount of liquid can be stably supplied to the pump 28.

Claims (3)

  A plurality of head units that are distributed on the installation floor, mix air and liquid, and eject mist, and a plurality of head units that are arranged close to each head unit and supply the air to the adjacent head units And a liquid supply device for supplying the liquid to the plurality of head portions.   The head unit mixes the air and the liquid and divides the plurality of spray nozzles that eject mist from a jet outlet and the air supplied from the blower and transports the air toward the individual spray nozzles. The spray device according to claim 1, further comprising: a manifold for liquid and a liquid manifold that divides the liquid supplied from the liquid supply device and conveys the liquid toward the individual spray nozzles. The spray according to claim 1 or 2, wherein the head part and the blower are attached near a ceiling of the installation floor in a building, and dust floating in the air is captured and lowered by the mist ejected from the head part. apparatus.

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