JPH0410387B2 - - Google Patents
Info
- Publication number
- JPH0410387B2 JPH0410387B2 JP302685A JP302685A JPH0410387B2 JP H0410387 B2 JPH0410387 B2 JP H0410387B2 JP 302685 A JP302685 A JP 302685A JP 302685 A JP302685 A JP 302685A JP H0410387 B2 JPH0410387 B2 JP H0410387B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- gas
- spray
- liquid
- film thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007921 spray Substances 0.000 claims description 50
- 239000007788 liquid Substances 0.000 claims description 49
- 238000002347 injection Methods 0.000 claims description 32
- 239000007924 injection Substances 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Nozzles (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、赤熱鋼板やそれを搬送するローラコ
ンベヤを冷却したり、或いは、菜園や果樹園等で
作物に薬剤を散布するなど広汎な用途を有するフ
ラツトスプレー式の気液混合噴霧用ノズルに関す
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention has a wide range of applications, such as cooling red-hot steel plates and roller conveyors that transport them, or spraying chemicals on crops in vegetable gardens and orchards. The present invention relates to a flat spray type gas-liquid mixing spray nozzle.
この種の気液混合噴霧用ノズルでは、第１０
図、第１１図で示すように、有底筒状ノズル本体
０１の底部に、混合気液をフラツトな状態で霧化
噴出可能なオリフイス（噴射口の一例である。）
０２を形成している。
In this type of gas-liquid mixing spray nozzle, the 10th
As shown in FIG. 11, there is an orifice (an example of an injection port) at the bottom of the bottomed cylindrical nozzle body 01 that can atomize and eject the mixed gas and liquid in a flat state.
02 is formed.
この従来ノズルによる場合は、混合気液がオリ
フイス０２から霧化噴出された際、圧縮状態にあ
る気体の膨張作用とオリフイス先端部での負圧に
よる拡散作用とを受けるため、第８図のグラフの
破線ａでも示すように、混合気液が噴霧幅方向に
対して直交する噴霧膜厚方向にも大きく拡散する
傾向にある。 In the case of this conventional nozzle, when the mixed gas/liquid is atomized and ejected from the orifice 02, it is subjected to the expansion action of the compressed gas and the diffusion action due to the negative pressure at the tip of the orifice. As also shown by the broken line a, the mixed gas liquid tends to diffuse largely in the spray film thickness direction, which is orthogonal to the spray width direction.
それ故に、例えば、第９図で示すように、製鉄
所での赤熱鋼板（スラブ）Ｃの冷却設備におい
て、赤熱鋼板Ｃを搬送するローラコンベヤ１２の
制限されたローラ１２ａ，１２ｂ群間の間隙を通
して冷却用混合気液を噴霧する場合では、噴霧さ
れた冷却用混合気液の多くがローラ１２ａ，１２
ｂに降り懸かることは避けられないため、噴霧液
量の割に冷却効率が悪くなる問題があつた。 Therefore, for example, as shown in FIG. 9, in cooling equipment for red-hot steel plates (slabs) C in a steelworks, the red-hot steel plates C are conveyed through the gap between the limited rollers 12a and 12b of the roller conveyor 12. In the case of spraying the cooling mixture liquid, most of the sprayed cooling mixture liquid is sprayed onto the rollers 12a, 12.
Since this cannot be avoided, there is a problem in that the cooling efficiency is poor compared to the amount of sprayed liquid.
本発明の目的は、前記ノズル本体に対する噴射
口の加工の容易化を図りつつ、混合気液の噴霧膜
厚を各種条件に応じた厚さに自由に設定すること
ができるようにする点にある。
An object of the present invention is to facilitate the processing of the injection port on the nozzle body, and to enable the thickness of the sprayed film of the mixed gas and liquid to be freely set to the thickness according to various conditions. .
本発明による気液混合噴霧用ノズルの特徴構成
は、前記ノズル本体に、噴射口からフラツトな状
態で霧化噴出される混合気液の噴霧膜厚を規制可
能な噴霧膜厚規制面を備えた部材を設けた点にあ
り、その作用・効果は次の通りである。
A characteristic configuration of the gas-liquid mixture spray nozzle according to the present invention is that the nozzle body is provided with a spray film thickness regulating surface that can regulate the spray film thickness of the mixed gas and liquid that is atomized and ejected from the injection port in a flat state. This is because the members are provided, and their functions and effects are as follows.
(イ) 混合気液が噴射口からフラツトな状態で霧化
噴出された際、ノズル本体に取り付けられた噴
霧膜厚規制部材の噴霧膜規制面に沿つて流動案
内されながら拡散されるから、従来のように噴
霧混合気液が圧縮状態にある気体の膨張作用及
びオリフイス先端部での負圧による拡散作用を
受けて噴霧膜厚方向に自由に拡散することがな
い。
(b) When the mixture liquid is atomized and ejected from the injection port in a flat state, it is dispersed while being flow-guided along the spray film regulating surface of the spray film thickness regulating member attached to the nozzle body. As shown in the above, the sprayed mixed gas liquid is not freely diffused in the direction of the spray film thickness due to the expansion action of the compressed gas and the diffusion action due to the negative pressure at the tip of the orifice.
(ロ) しかも、前記噴霧膜厚規制部材がノズル本体
とは別途に構成されているから、各種噴霧条件
に応じて噴霧角を自由に設定することができる
とともに、ノズル本体の噴射口と噴霧膜厚規制
部材の噴霧規制面との加工上での相互干渉をも
回避することができる。(b) Moreover, since the spray film thickness regulating member is configured separately from the nozzle body, the spray angle can be freely set according to various spray conditions, and the spray film It is also possible to avoid mutual interference between the thickness regulating member and the spray regulating surface during processing.
従つて、前記ノズル本体に前記のような噴霧膜
厚規制部材を付加するだけの簡単かつ安価な改造
をもつて、ノズル本体に対する噴射口の加工の容
易化を図りながら、各種噴霧条件に応じた任意の
噴霧膜厚に自由に調整することができるに至つ
た。
Therefore, by simply and inexpensively modifying the nozzle body by simply adding the above-mentioned spray film thickness regulating member, it is possible to easily process the injection port on the nozzle body and to adapt it to various spray conditions. It has now become possible to freely adjust the spray film thickness to any desired thickness.
以下、本発明の実施例を図面に基づいて説明す
る。
Embodiments of the present invention will be described below based on the drawings.
鋳造された鋼板に水を噴霧供給して冷却する場
合などに使用される気液混合噴霧用ノズルＡを構
成するに、第１図、第２図で示すように、有底筒
状ノズル本体１の内底部に、ノズル軸芯Ｐと同芯
又はほぼ同芯状態で先窄まり状の湾曲内周面１ａ
を形成するとともに、前記ノズル本体１の底部側
には、正面視においてノズル本体中心軸芯Ｐに対
して直交又はほぼ直交する方向に沿うオリフイス
（噴射口の一例である。）２を形成している。 As shown in FIGS. 1 and 2, a bottomed cylindrical nozzle body 1 constitutes a gas-liquid mixing spray nozzle A used when cooling a cast steel plate by spraying water. A curved inner circumferential surface 1a that is concentric or almost concentric with the nozzle axis P and has a converging shape is provided at the inner bottom of the nozzle axis P.
At the same time, an orifice (an example of an injection port) 2 is formed on the bottom side of the nozzle body 1, and extends in a direction perpendicular or almost perpendicular to the center axis P of the nozzle body when viewed from the front. There is.
前記ノズル本体１の外周部には、オリフイス２
からフラツトな状態で霧化噴出される混合気液の
噴霧膜厚を規制可能なスリツト状の噴霧膜厚規制
面３ａを備えた円筒状の噴霧膜厚規制部材３を外
嵌するとともに、この噴霧膜厚規制部材３をビス
１１にて前記ノズル本体１に固定している。 An orifice 2 is provided on the outer periphery of the nozzle body 1.
A cylindrical spray film thickness regulating member 3 equipped with a slit-shaped spray film thickness regulating surface 3a capable of regulating the spray film thickness of the mixed gas and liquid that is atomized and ejected in a flat state is fitted onto the outside of the spray film. The film thickness regulating member 3 is fixed to the nozzle body 1 with screws 11.
また、前記ノズル本体１の開口部側の内周面に
は、気液混合装置Ｂの噴射管４に対する接合用雌
ネジ部１ｂを形成している。 Further, on the inner circumferential surface of the nozzle body 1 on the opening side, a female threaded portion 1b for connection to the injection pipe 4 of the gas-liquid mixing device B is formed.
そして、混合気液がオリフイス２からフラツト
な状態で霧化噴出された際、ノズル本体１に取り
付けられた噴霧膜厚規制部材３の噴霧膜規制面３
ａに沿つて流動案内されながら拡散されるから、
噴霧混合気液が圧縮状態にある気体の膨張作用及
びオリフイス２先端部での負圧による拡散作用を
受けて噴霧膜厚方向に自由に拡散することがな
い。 When the mixed gas liquid is atomized and ejected from the orifice 2 in a flat state, the spray film regulating surface 3 of the spray film thickness regulating member 3 attached to the nozzle body 1
Because it is diffused while being guided by the flow along a,
The sprayed mixed gas liquid is not freely diffused in the direction of the spray film thickness due to the expansion action of the compressed gas and the diffusion action due to the negative pressure at the tip of the orifice 2.
それ故に、第８図のグラフの実線ｂで示すよう
に、混合気液が噴霧幅方向に対して直交する方向
の噴霧膜厚l1を、従来ノズルの噴霧膜厚l2に比し
て可及的に小さくすることができるのである。 Therefore, as shown by the solid line b in the graph of FIG. 8, the spray film thickness l 1 of the mixture gas and liquid in the direction orthogonal to the spray width direction can be made smaller than the spray film thickness l 2 of the conventional nozzle. Therefore, it can be made smaller.
前記気液混合装置Ｂは次の如く構成されてい
る。 The gas-liquid mixing device B is constructed as follows.
第３図で示すように、前記気液混合噴霧用ノズ
ルＡを螺合してある噴射管４の基部に、前記オリ
フイス２に向かつて液体を噴射する液体噴射ノズ
ル５を同軸芯状態で挿嵌して螺合固定し、この液
体噴射ノズル５の液体噴射流路５ａの外周部、つ
まり、液体噴射ノズル５の挿嵌部分に対応する噴
射管４部分には、これら両者４，５間に形成され
る環状空間S1内に気体を噴射供給する口６を形成
するとともに、前記噴射管４内の気液混合空間S2
と前記環状空間S1との間に亘つて、その横断面積
が前記環状空間S1のそれよりも小で、かつ、前記
環状空間S1内に供給された気体を前記液体噴射流
路５ａの噴出口よりもオリフイス２側の軸芯又は
ほぼ軸芯に向かつて噴射案内可能な傾斜姿勢の環
状流路７を形成している。 As shown in FIG. 3, a liquid injection nozzle 5 that injects liquid toward the orifice 2 is inserted coaxially into the base of the injection pipe 4 to which the gas-liquid mixing spray nozzle A is screwed. The liquid injection nozzle 5 is screwed and fixed, and the outer peripheral part of the liquid injection flow path 5a of the liquid injection nozzle 5, that is, the part of the injection pipe 4 corresponding to the insertion part of the liquid injection nozzle 5 is formed between these two 4 and 5. A gas-liquid mixing space S 2 in the injection pipe 4 is formed in the annular space S 1 in which the gas is injected and supplied.
and the annular space S 1 , the cross-sectional area of which is smaller than that of the annular space S 1 , and the gas supplied into the annular space S 1 is transferred to the liquid injection channel 5a. An annular flow path 7 is formed with an inclination that allows injection to be guided toward the axis on the side of the orifice 2 relative to the injection port or substantially toward the axis.
前記噴射管４は、前記気液混合空間S2を形成し
てある第一管部分４ａと、前記液体噴射ノズル５
に対する接合用雌ネジ及び前記気体噴射供給口６
を形成してある第二管部分４ｂとからなる。 The injection pipe 4 includes a first pipe portion 4a forming the gas-liquid mixing space S2 , and the liquid injection nozzle 5.
female screw for joining and the gas injection supply port 6
A second pipe portion 4b is formed.
前記第二管部分４ｂの気体噴射供給口６周縁部
分には、空気圧縮機等の気体供給装置８に対する
接続金具９を溶接にて固着している。 A connecting fitting 9 for a gas supply device 8 such as an air compressor is fixed by welding to the peripheral edge portion of the gas injection supply port 6 of the second pipe portion 4b.
前記液体噴射ノズル５には、ポンプ等の液体供
給装置１０に対する接続用雌ネジ５ｂと前記環状
空間S1を形成するための周溝５ｃとを形成してい
る。 The liquid injection nozzle 5 is formed with a female thread 5b for connection to a liquid supply device 10 such as a pump, and a circumferential groove 5c for forming the annular space S1 .
次に、別の実施例について説明する。 Next, another example will be described.
(イ) 第二実施例
第４図、第５図で示すように、前記噴霧膜厚
規制部材３を、前記ノズル本体１に対してノズ
ル軸芯方向に位置変更自在に外嵌させる。(a) Second Embodiment As shown in FIGS. 4 and 5, the spray film thickness regulating member 3 is fitted onto the nozzle main body 1 so as to be freely changeable in position in the nozzle axial direction.
尚、前記噴霧膜厚規制部材３を、前記ノズル
本体１に対してもスプライン嵌合又はネジ嵌合
させてもよい。 Note that the spray film thickness regulating member 3 may also be spline-fitted or screw-fitted to the nozzle main body 1.
(ロ) 第三実施例
第６図、第７図で示すように、前記噴射口２
を、前記ノズル本体１のノズル軸芯Ｐ方向にほ
ぼ沿う状態で形成された二個（三個以上でもよ
い。）の噴射口から構成する。(b) Third embodiment As shown in FIGS. 6 and 7, the injection port 2
is composed of two (or three or more) injection ports formed substantially along the direction of the nozzle axis P of the nozzle body 1.
(ハ) 第四実施例
上述実施例では、前記気液混合装置Ｂを構成
するに当たつて、ノズル５から液体を、かつ、
噴射供給口６から気体を夫々噴射供給すべく構
成したが、これとは逆に、前記ノズル５から気
体を、かつ、噴射供給口６から液体を夫々噴射
供給すべく構成して実施してもよい。(c) Fourth embodiment In the above-mentioned embodiment, when configuring the gas-liquid mixing device B, the liquid is supplied from the nozzle 5, and
Although the configuration has been described so as to inject and supply gas from the injection supply ports 6, it is also possible to implement the configuration in such a manner that gas is injected from the nozzle 5 and liquid is injected from the injection supply port 6, respectively. good.
(ニ) 第五実施例
前記ノズル本体１に、噴射口２からフラツト
な状態で霧化噴出される混合気液の噴霧膜厚を
規制可能な噴霧膜厚規制面３ａと、前記噴射口
２からフラツトな状態で霧化噴出される混合気
液の噴霧巾（スプレー巾）を規制する噴霧巾規
制面とを形成して実施する。(D) Fifth Embodiment The nozzle body 1 includes a spray film thickness regulating surface 3a that can regulate the spray film thickness of the mixed gas and liquid that is flatly atomized and ejected from the injection port 2; This is carried out by forming a spray width regulating surface that regulates the spray width of the mixed gas and liquid that is atomized and ejected in a flat state.
第１図乃至第３図は本発明に係る気液混合噴霧
用ノズルの実施例を示し、第１図は縦断側面図、
第２図は正面図、第３図は使用の一例を示す縦断
側面図である。第４図、第６図は夫々別の実施例
を示す縦断側面図であり、第５図は第４図の−
線断面図、第７図は第６図の正面図である。ま
た、第８図は混合気液のスプレー状態を示すグラ
フであり、第９図はノズルの使用の一例を示す側
面図である。第１０図、第１１図は従来の気液混
合噴霧用ノズルを示す縦断側面図とその正面図で
ある。
１……有底筒状ノズル本体、１ａ……湾曲内周
面、２……噴射口、３……噴霧膜厚規制部材、３
ａ……噴霧膜厚規制面、Ｐ……ノズル軸芯。
1 to 3 show an embodiment of a gas-liquid mixture spray nozzle according to the present invention, and FIG. 1 is a vertical side view,
FIG. 2 is a front view, and FIG. 3 is a longitudinal side view showing an example of use. 4 and 6 are longitudinal sectional side views showing different embodiments, and FIG. 5 is a -
A line sectional view, FIG. 7 is a front view of FIG. 6. Moreover, FIG. 8 is a graph showing the spray state of the mixed gas and liquid, and FIG. 9 is a side view showing an example of the use of the nozzle. FIGS. 10 and 11 are a longitudinal side view and a front view of a conventional gas-liquid mixing spray nozzle. DESCRIPTION OF SYMBOLS 1... Bottomed cylindrical nozzle body, 1a... Curved inner peripheral surface, 2... Injection port, 3... Spray film thickness regulating member, 3
a... Spray film thickness regulating surface, P... Nozzle axis.
Claims (1)
フラツトな状態で霧化噴出可能な噴射口２を形成
してある気液混合噴霧用ノズルであつて、前記ノ
ズル本体１に、噴射口２からフラツトな状態で霧
化噴出される混合気液の噴霧膜厚を規制可能な噴
霧膜厚規制面３ａを備えた部材３を設けてある気
液混合噴霧用ノズル。 ２ 前記噴霧膜厚規制部材３が前記ノズル本体１
に対してノズル軸芯方向に位置変更自在に構成さ
れたものである特許請求の範囲第１項に記載の気
液混合噴霧用ノズル。 ３ 前記ノズル本体１がその内底部にノズル軸芯
Ｐと同芯又はほぼ同芯状態で先窄まり状の湾曲内
周面１ａを形成したものである特許請求の範囲第
１項又は第２項に記載の気液混合噴霧用ノズル。 ４ 前記噴射口２が正面視においてノズル軸芯Ｐ
に対して直交又はほぼ直交する方向に沿うオリフ
イスである特許請求の範囲第１項乃至第３項の何
れかに記載の気液混合噴霧用ノズル。 ５ 前記噴霧膜厚規制部材３の取り付け位置変更
手段が螺合手段である特許請求の範囲第２項に記
載の気液混合噴霧用ノズル。[Scope of Claims] 1. A gas-liquid mixing spray nozzle, which has a bottom cylindrical nozzle body 1 with an injection port 2 formed at the bottom of the bottom cylindrical nozzle body 1, which is capable of atomizing and ejecting a mixed gas and liquid in a flat state. A nozzle for gas-liquid mixture spraying, in which a nozzle body 1 is provided with a member 3 having a spray film thickness regulating surface 3a capable of regulating the spray film thickness of a gas-liquid mixture atomized and ejected in a flat state from an injection port 2. . 2 The spray film thickness regulating member 3 is connected to the nozzle body 1.
The gas-liquid mixture spray nozzle according to claim 1, wherein the nozzle is configured such that its position can be freely changed in the axial direction of the nozzle. 3. Claims 1 or 2, wherein the nozzle main body 1 has a tapered curved inner circumferential surface 1a formed on the inner bottom thereof in a concentric or substantially concentric state with the nozzle axis P. A nozzle for spraying a gas-liquid mixture as described in . 4 The injection port 2 is aligned with the nozzle axis P when viewed from the front.
The gas-liquid mixing spray nozzle according to any one of claims 1 to 3, which is an orifice extending in a direction perpendicular or substantially perpendicular to the air. 5. The gas-liquid mixture spray nozzle according to claim 2, wherein the means for changing the attachment position of the spray film thickness regulating member 3 is a screwing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP302685A JPS61161163A (en) | 1985-01-10 | 1985-01-10 | Nozzle for atomizing gas and liquid mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP302685A JPS61161163A (en) | 1985-01-10 | 1985-01-10 | Nozzle for atomizing gas and liquid mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61161163A JPS61161163A (en) | 1986-07-21 |
| JPH0410387B2 true JPH0410387B2 (en) | 1992-02-25 |
Family
ID=11545805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP302685A Granted JPS61161163A (en) | 1985-01-10 | 1985-01-10 | Nozzle for atomizing gas and liquid mixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61161163A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4481677B2 (en) * | 2004-02-18 | 2010-06-16 | 本田技研工業株式会社 | Application nozzle |
| JP4481678B2 (en) * | 2004-02-18 | 2010-06-16 | 本田技研工業株式会社 | Application nozzle |
-
1985
- 1985-01-10 JP JP302685A patent/JPS61161163A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61161163A (en) | 1986-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |