JPS59139959A - Nozzle for forming very fine particle by high-speed whirling as stream - Google Patents

Abstract

PURPOSE:To obtain the titled atomizing nozzle having simplified structure and capable of forming very fine particles having a long flying range, by drilling turning guide hole in a core to form a high-speed whirling gas stream, and constituting said nozzle with the core and a spraying plate as a couple. CONSTITUTION:A part of gas forcibly sent into an outer cylinder 2 is let flow into a two-fluid channel 8 and formed into a high-speed whirling gas stream. A liquid from a pipe 12 for the introduction of a liquid is sent into said high-speed whirling gas stream, crushed and sprayed on the high-speed whirling gas stream through a projected part 11. The pressurized gas inside an outer cylinder 9 other than the part having flows into the two-fluid channel 8 is let flow into a turning guide hole 7 and then flow out as a whirling gas stream into a vortex chamber 6. Thereafter, said gas is circulated through an annular gap formed between the projected part 11 and a spraying plate 3 and ejected at an accelerated speed to form a high-speed whirling gas stream. The liquid ejected through the projected part 11 is recrushed in the vicinity of an ejection opening 10 by the high-speed whirling gas stream ejected through the annular gap 14 and ejected as the spray of very fine particles through the ejection opening 10.

Description

【発明の詳細な説明】 本発明は中子に穿設した旋回導孔により、高速渦流気体
を生しさせ、液体を噴霧化する中子と噴板が対（こなっ
た超微粒子発生用ノズルに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is a nozzle for generating ultrafine particles, which is a pair of a core and a spray plate that generate a high-speed vortex gas and atomize liquid by means of a swirling hole bored in the core. It is related to.

従来のノズルは、液体を加圧し旋回通路を通して渦流を
生しさせて、小口径の噴口から噴出させ、微粒化するー
・流体の液圧式噴霧ノズルや、高速気流で液体を吹きち
ぎり、破砕し、噴口で微粒化する二流体噴射ノズルなど
がある。しかし、いずれの場合も噴霧粒子の粒子径が０
．１箭程度であり、温室・室内を汚損せず（こ殺虫・殺
菌するため（こは粒子径０００１ｒＭ１〜０．０２ｍ程
度の超微粒子の噴霧粒子が要求されているため、従来の
ノズルでは」難である。Conventional nozzles pressurize the liquid, create a vortex through a swirling passage, and eject it from a small-diameter nozzle to atomize it. There are two-fluid injection nozzles that atomize particles at the nozzle. However, in both cases, the particle size of the spray particles is 0.
．． It is difficult to spray with conventional nozzles because it is required to spray ultra-fine particles with a particle diameter of 0001 rM1 to 0.02 m in order to kill insects and sterilize without polluting greenhouses and indoor spaces. It is.

また最近では超微粒子発生用ノズルとして超音波ノズル
が開発されているが、噴霧の到達距離が噴霧粒子のもつ
運動量のみに依るため、到達距離が非常（・こ小さい。Recently, ultrasonic nozzles have been developed as nozzles for generating ultrafine particles, but the distance traveled by the spray depends only on the momentum of the spray particles, so the distance traveled is very small.

到達距離を大きくする（こは別途（二送風機などを用い
て微粒子を高速気流で吹き飛−ばす必要があり、設備が
大型化し高価なものとなる。To increase the reach distance, it is necessary to use a separate blower or the like to blow away the particles with high-speed airflow, making the equipment larger and more expensive.

本発明はこれらの従来の欠点を解決し、簡単な＋１１！
−造で到達距離の大きい超微粒子を発生させるための噴
霧ノズルを得ることを１」的とする。The present invention solves these conventional drawbacks and provides a simple +11!
- The objective is to obtain a spray nozzle for generating ultrafine particles with a long reach.

本発明の構成を図面※こもとづいて説明づる。The configuration of the present invention will be explained based on the drawings.

外筒（２）内に挿入された固定中子（１）は噴板（３）
にボルト＋４１　＋４１’によって固定されている。噴
板（３）の中央には噴口（１０）が穿設され、噴板（３
］は外筒（２）にボルトｆ１５）　１１５１によって固
定されている。該固定中子（１）は中子外周面（５）か
ら渦流室（６）へ１１通する数個の旋回導孔（７）が穿
設されている。また固定中子（１）はその軸心に、高速
気流と液体送入管（１２）から流入した液体が通過する
二流体通路（８）をイ」する。該二流体通路（８）は外
１冷内６１ｔ　＋９＋と渦流室（６）を連通しており、
その先端は噴１：Ｉ　１１０１と対向した位置（３突１
１旨’ｄＩ　ｔｕ＋を形成する。該突出部ｕ１１と１ｒ
′１板（３）は環状間隙０４１を形成し、渦流室（６）
からの渦流気体は該環状間隙（１４）から−増速されて
噴出する。外部からの／１り仕送入管（１２）は外筒（
２）を賀通し、固定中子の側：ｒｔｉ　ｕ３）（、、−
はめ込まれ、二゛　流体通路（８）（二通しる。The fixed core (1) inserted into the outer cylinder (2) is the spout plate (3)
It is fixed by bolts +41 +41'. A spout (10) is bored in the center of the spout plate (3).
] is fixed to the outer cylinder (2) with a bolt f15) 1151. The fixed core (1) is provided with several swirl guide holes (7) that extend from the outer peripheral surface (5) of the core to the swirl chamber (6). The fixed core (1) also has a two-fluid passageway (8) in its axis, through which high-speed airflow and liquid flowing from the liquid feed pipe (12) pass. The two-fluid passage (8) communicates the outer 1 cold inner 61t+9+ and the swirl chamber (6),
Its tip is located opposite the jet 1: I 1101 (3 jet 1
1 effect'dI tu+ is formed. The protrusions u11 and 1r
'1 plate (3) forms an annular gap 041 and a swirl chamber (6)
The vortex gas from the annular gap (14) emerges from the annular gap (14) at an increased speed. The incoming pipe (12) from the outside is connected to the outer cylinder (
2), fixed core side: rti u3) (,, -
It is inserted into the two fluid passages (8).

次（こ実施例にもとづいて、その作用を説明する。Next, the operation will be explained based on this embodiment.

外筒（２］内に圧送された気体の一部は二流体通路（８
）に流入し、高速気流となる。液体送入管（１２）から
の液体は二流体通路（８）を通過する高速気流中（こ送
入され、破砕され、高速気流（こ乗って突出部（１１１
から噴出する。A part of the gas forced into the outer cylinder (2) flows through the two-fluid passage (8
) and becomes a high-speed airflow. The liquid from the liquid inlet pipe (12) passes through the two-fluid passageway (8) into a high-speed airflow, is crushed, and is crushed by the high-speed airflow (ridden by the protrusion (111).
erupts from.

二流体通路（８）番こ流入した以外の外筒内部（９］の
加圧気体は旋回導孔（７）へ流入し、旋回を与えられ渦
流室（６］に旋回エイ・ルギをもつ渦流気体となって流
出する。この渦流室（６）の渦流気体は突出部（１１）
と噴板（３）（こより形成された環状間隙（１４を通過
するととも（こ増速され噴出し、高速渦流気体となる。The pressurized gas inside the outer cylinder (9) other than the one flowing into the two-fluid passage (8) flows into the swirl guide hole (7), is given a swirl, and enters the swirl chamber (6) into a swirling flow with a swirling force. The vortex gas in the vortex chamber (6) flows out as a gas.
As it passes through the annular gap (14) formed by the jet plate (3), the speed is increased and the gas is ejected, forming a high-speed vortex gas.

突出部ｉｌｌから噴出した液体は噴口００）伺近で環状
間隙（１４１から噴出する高速渦流気体により再破砕さ
れ、超微粒子の噴霧となり、噴口００）より高速渦流気
体に乗って噴出する。The liquid ejected from the protrusion ill is crushed again by the high-speed vortex gas ejected from the annular gap (141) near the nozzle 00), becomes a spray of ultrafine particles, and is ejected from the nozzle 00) riding on the high-speed vortex gas.

第４図は固定中子の外周面（２＋１　Ｔこ軸方向（こ向
う傾斜を有するノズルの実施例である。この場合、外筒
り）内の加圧気体が旋回導孔因）に流入し易くなり、多
量の高速渦流気体を生じて、より能率の良い超微粒子の
噴霧を行なうことが可能である。Figure 4 shows that the pressurized gas in the outer circumferential surface of the fixed core (in the 2+1 T axial direction (this is an example of a nozzle having an opposite inclination; in this case, the outer cylinder) flows into the rotating guide hole). This makes it possible to generate a large amount of high-speed vortex gas and perform more efficient atomization of ultrafine particles.

また本発明のノズルは従来の一流体の液圧式ノズルのよ
う（こ液体が細孔を通過することがないので、液体中の
混合物、不純物Ｆこよる目づまりが非常に少ない。In addition, the nozzle of the present invention is different from conventional one-fluid hydraulic nozzles (because the liquid does not pass through the pores, there is very little clogging caused by mixtures and impurities F in the liquid).

以上述べたように、本発明による簡単な構造のノズルに
より、多量の液体を超微粒化し、かつ到達距離の大きい
噴霧が可能となる。As described above, the simple structure of the nozzle according to the present invention makes it possible to make a large amount of liquid into ultra-fine particles and spray over a large distance.

本発明によるノズルの利用方［ｎｌは広く、温室内での
殺虫・殺菌においては、超微粒化された薬液の噴霧粒子
が空中に浮遊し、１７□＾室内に充ン箇するのでかくは
んを必要とせず、葉裏の虫まで殺虫できる。How to use the nozzle according to the present invention [nl is widely used, when killing insects and sterilizing in a greenhouse, the spray particles of the ultra-fine chemical solution float in the air and fill the room, so stirring is necessary. It can even kill insects on the underside of leaves.

このように温室・畜舎の殺虫・殺菌を始めとし、室内の
加湿、ミスト冷却なと多量の液体の超微粒化を必要とす
る広範囲の産業分野に利用てきる。In this way, it can be used in a wide range of industrial fields that require ultra-atomization of large amounts of liquid, such as insecticide and sterilization in greenhouses and livestock barns, indoor humidification, and mist cooling.

またノズルの構造も非常に簡単で施工し易−く、安価に
製造てきる。Furthermore, the structure of the nozzle is very simple, easy to construct, and can be manufactured at low cost.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明をこよるノズルの固定中子の正面ＩンＩ
、第２図は同固定中子の一部縦断曲図、第３図は固定中
子を取り利け、実施した場合のノズル及びノズル周辺の
縦断面図である。第４図は外周面に傾斜を有する固定中
子を取り（＝Ｊけた場合のノズル及びノズル周辺の綜目
（、ｌ「面図である。 １　・固定中子　　　　　２・・外筒 ３・・・噴板　　　　　　４，４′・ボルト５・・・固
定中子外周面　　６・・・渦流室７・・・旋回導孔　　
　　　８・・・二流体通路９　外筒内部　　　　　１０
・・・噴口１１・・・突出部　　　　　　１２・・・液
体送入管１３・・・固定中子側面　　　１４・・環状間
隙１５．１５’・・・ボルト ２１・・・固定中子外周面　　２２・・・外筒２３・・
旋回導孔 特許出願人　間藤公利 ’７２　　図 ／ １５′　　　策３１０Figure 1 shows a front view of the fixed core of a nozzle according to the present invention.
, FIG. 2 is a partial longitudinal cross-sectional view of the fixed core, and FIG. 3 is a vertical cross-sectional view of the nozzle and the nozzle periphery when the fixed core is removed. Figure 4 is a side view of a fixed core with an inclined outer circumferential surface (= J digit) and the heath around the nozzle. 1. Fixed core 2. Outer cylinder 3.・Spout plate 4, 4'・Bolt 5...Fixed core outer circumferential surface 6...Swirl chamber 7...Swivel guide hole
8...Two-fluid passage 9 Inside the outer cylinder 10
...Nozzle port 11...Protruding part 12...Liquid feed pipe 13...Fixed core side surface 14...Annular gap 15.15'...Bolt 21...Fixed core outer circumferential surface 22...・Outer cylinder 23・・
Swivel guide hole patent applicant Kimitoshi Mato '72 Figure/15' Measure 310

Claims (1)

【特許請求の範囲】 １　外周面（５）から渦流室（６）に貝通する旋回導孔
（７）を穿設し、その軸心（こ二流体通路（８）、及び
先端には突出部０１（を有する固定中子ｉｌ＋と、該突
出部０１）と環状間隙（１４１を形成する噴板（３）（
こより構成される超微°粒子発生用ノズル ２　固定中子外周面＋２１１　ｉこ軸方向に傾斜を有す
る特許請求の範囲第１項記載の超微粒子発生用ノズル。[Claims] 1. A swirl guide hole (7) passing through the swirl chamber (6) from the outer circumferential surface (5) is bored, and its axis (the second fluid passage (8) and a protrusion at the tip) are formed. A fixed core il+ having part 01 (and the protruding part 01) and a spout plate (3) forming an annular gap (141) (
Nozzle 2 for generating ultrafine particles constituted by: The nozzle for generating ultrafine particles according to claim 1, which has an outer circumferential surface of a fixed core having an inclination in the axial direction.