JP3022093B2 - Liquid supply nozzle - Google Patents
Liquid supply nozzleInfo
- Publication number
- JP3022093B2 JP3022093B2 JP5249602A JP24960293A JP3022093B2 JP 3022093 B2 JP3022093 B2 JP 3022093B2 JP 5249602 A JP5249602 A JP 5249602A JP 24960293 A JP24960293 A JP 24960293A JP 3022093 B2 JP3022093 B2 JP 3022093B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid supply
- opening
- nozzle chamber
- partition wall
- liquid
- 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 - Fee Related
Links
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- Nozzles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、薄鋼板など板状材料の
表面に酸液、メッキ液等の液体を供給する給液ノズルに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply nozzle for supplying a liquid such as an acid solution or a plating solution to the surface of a sheet material such as a thin steel plate.
【０００２】[0002]
【従来の技術】鋼板など金属材料やその他の板状材料
に、洗浄、酸洗、メッキ等の処理を行う場合、洗浄液、
酸液、メッキ液等を材料表面に供給する給液ノズルが使
用されている。そして、被処理材の全面にわたりむらな
く良好な処理を行うために、給液ノズルから供給する液
の流速を、被処理材の板幅方向で均一にすることが望ま
れている。2. Description of the Related Art When a metal material such as a steel plate and other plate-like materials are subjected to cleaning, pickling, plating and the like, a cleaning solution,
A liquid supply nozzle for supplying an acid solution, a plating solution and the like to the surface of the material is used. Then, in order to uniformly perform good processing over the entire surface of the material to be processed, it is desired that the flow rate of the liquid supplied from the liquid supply nozzle be uniform in the width direction of the material to be processed.
【０００３】このような給液ノズルとして、特開昭６１
−６４８９７号公報には、図７に示すように、板幅方向
に延びた筒状のヘッダー２０の長手方向に孔２１を列状
に設け、各孔２１から噴射された液を、案内板２２、補
助案内板２３および衝突板２４により、板幅方向と直角
な整流とし、かつ流速を板幅方向均一になるようにした
ものが記載されている。また実開昭６１−９０８６０号
公報には、図８に示すように、ヘッダー２０の長さ方向
に多数のノズル細管２５を垂直に、かつ各細管２５の端
面がヘッダー２０内の流速方向に対向するように設けた
ものが記載されている。[0003] Such a liquid supply nozzle is disclosed in
In Japanese Patent Application Laid-Open No. 64897, as shown in FIG. 7 , holes 21 are provided in rows in the longitudinal direction of a cylindrical header 20 extending in the width direction of the plate, and the liquid ejected from each hole 21 is supplied to a guide plate 22. In the description, the auxiliary guide plate 23 and the collision plate 24 are used to perform rectification perpendicular to the plate width direction and to make the flow velocity uniform in the plate width direction. In Japanese Utility Model Laid-Open Publication No. 61-90860, as shown in FIG. 8 , a number of nozzle thin tubes 25 are vertically arranged in the length direction of the header 20 and the end faces of the respective thin tubes 25 face the flow direction in the header 20. What is provided so as to perform is described.
【０００４】[0004]
【発明が解決しようとする課題】洗浄、酸洗、メッキ等
の被処理材が、板厚０．１mm程度の非常に薄いストリッ
プで、しかも高速処理が要求される場合、大流量の液を
供給し、被処理材の振動を抑止するため液の脈動や振動
が非常に小さい整流状態とし、かつ全面むらなく処理す
るため液の流速を板幅方向均一にしなければならない。
しかしながら、上記従来の給液ノズルでは、整流効果お
よび流速分布均一効果が不十分であった。When a material to be processed such as cleaning, pickling, plating, etc. is a very thin strip having a thickness of about 0.1 mm and high-speed processing is required, a large flow rate of liquid is supplied. However, in order to suppress the vibration of the material to be processed, the pulsation and the vibration of the liquid must be in a rectified state, and the flow velocity of the liquid must be uniform in the plate width direction in order to process the entire surface uniformly.
However, the conventional liquid supply nozzle has insufficient rectifying effect and flow velocity distribution uniforming effect.
【０００５】本発明は、上述のような課題を解決するた
めになされたものであり、大流量の液体を脈動や振動が
非常に小さい整流状態の液流れとし、かつ流速の板幅方
向分布を均一にする給液ノズルを提供することを目的と
する。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. A large flow amount of liquid is a rectified liquid flow having very small pulsation and vibration, and the flow velocity distribution in the plate width direction is reduced. It is an object of the present invention to provide a liquid supply nozzle that is uniform.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の給液ノズルは、筒状の仕切壁で仕切られた
内側ノズル室と外側ノズル室、仕切壁を外側ノズル室の
中心部に保持する保持板、内側ノズル室の一端側に設け
られた給液口、仕切壁周方向の少なくとも１ケ所に設け
られた開口、外側ノズル室と連通し通板部へ傾斜角をも
って給液する噴流口を有し、開口は噴流口より離れた位
置に設けるとともに、仕切壁単位長さ当たりの開口面積
が給液口側から反給液口側へ漸減する形状とし、かつ開
口の給液口側端部を噴流口の給液口側端部よりも給液口
側にずらすことで開口幅を噴流口幅よりも広くしたこと
を特徴とする。In order to achieve the above object, a liquid supply nozzle according to the present invention comprises an inner nozzle chamber and an outer nozzle chamber partitioned by a cylindrical partition wall, and the partition wall is formed by an outer nozzle chamber.
A holding plate to be held at the center, a liquid supply port provided at one end of the inner nozzle chamber, an opening provided at at least one location in the circumferential direction of the partition wall, and an inclined angle to the communicating plate portion communicating with the outer nozzle chamber.
And the opening is provided at a position distant from the jet port, and the opening area per unit length of the partition wall is gradually reduced from the liquid supply port side to the non-liquid supply port side, and Open
The liquid supply port side end of the mouth is higher than the liquid supply port end of the jet port.
It is characterized in that the opening width is made wider than the jet opening width by shifting to the side .
【０００７】また本発明の給液ノズルは、給液口が内側
ノズル室の両端側に設けられていて、開口は仕切壁単位
長さ当たりの開口面積が給液口側から中心部へ漸減する
形状とし、かつ開口の端部を噴流口の端部よりも給液口
側にずらすことで開口幅を噴流口幅よりも広くしてもよ
い。そして、給液口が内側ノズル室の一端側に設けられ
ている場合、および両端側に設けられている場合とも
に、外側ノズル室の流路中に整流板を設けるのが好まし
い。Further, in the liquid supply nozzle of the present invention, the liquid supply ports are provided at both ends of the inner nozzle chamber, and the opening area of the opening per unit length of the partition wall gradually decreases from the liquid supply port side to the center. Shape, and the end of the opening is more liquid inlet than the end of the spout
The opening width may be made wider than the jet opening width by shifting to the side . In both cases where the liquid supply port is provided at one end of the inner nozzle chamber and at both ends, it is preferable to provide a flow regulating plate in the flow path of the outer nozzle chamber.
【０００８】[0008]
【作用】第１発明の例を図１および図２に示す。図１
は、ストリップ１の両面側から給液するように設置した
本発明給液ノズル２の垂直断面図であり、ストリップ１
に対して左右対称に構成されている。図２は図１のＡ−
Ａ断面矢視図である。洗浄液、酸液、メッキ液等の液
は、図２に示す給液口６から内側ノズル室３内に導入さ
れ、図１および図２に示す筒状の仕切壁５に設けられた
開口７から外側ノズル室４に流出し、仕切壁５の周方向
に回流して噴流口１０からストリップ１に向け給液され
る。FIGS. 1 and 2 show an example of the first invention. FIG.
FIG. 2 is a vertical sectional view of the liquid supply nozzle 2 of the present invention installed so as to supply liquid from both sides of the strip 1.
Symmetrically with respect to. FIG. 2 shows A-
It is an A sectional arrow view. A liquid such as a cleaning liquid, an acid liquid, and a plating liquid is introduced into the inner nozzle chamber 3 from a liquid supply port 6 shown in FIG. 2, and from an opening 7 provided in a cylindrical partition wall 5 shown in FIGS. 1 and 2. The liquid flows out to the outer nozzle chamber 4, is circulated in the circumferential direction of the partition wall 5, and is supplied from the jet port 10 toward the strip 1.
【０００９】このような給液ノズル２の内側ノズル室３
において、給液口６から導入された液は、給液口６と反
対側の内側ノズル室端部１２に衝突するため、内側ノズ
ル室３内の静圧は、端部１２側が給液口６側よりも高い
分布となる。しかし、仕切壁５に設けた開口７の、仕切
壁単位長さ当たりの面積が、給液口６側から反給液口側
へ漸減するように、図２の例ではスリット状開口７のス
リット幅を、開口端１４から開口端１３へ漸減させてい
るので、内側ノズル室３から外側ノズル室４に流出する
液は、開口端部１３側では出難く、開口端部１４側では
出易くなり、噴流口１０から流出する液の流速が給液口
６側で低下するのが抑制される。さらに本発明において
は、開口７の幅ａが噴流口１０の幅ｂよりも広くしてあ
るので、噴流口１０から流出する液の流速が、給液口６
側の端部で低下するのが抑制される。したがって、スト
リップ１の全幅にわたって均一な流速分布で液が供給さ
れる。The inner nozzle chamber 3 of such a liquid supply nozzle 2
Since the liquid introduced from the liquid supply port 6 collides with the inner nozzle chamber end 12 opposite to the liquid supply port 6, the static pressure in the inner nozzle chamber 3 is reduced at the end 12 side toward the liquid supply port 6. The distribution is higher than the side. However, in the example of FIG. 2, the slit 7 of the slit-shaped opening 7 is configured such that the area of the opening 7 provided in the partition wall 5 per unit length of the partition wall gradually decreases from the liquid supply port 6 side to the non-liquid supply port side. Since the width is gradually reduced from the opening end 14 to the opening end 13, the liquid flowing from the inner nozzle chamber 3 to the outer nozzle chamber 4 hardly comes out on the opening end 13 side, and easily comes out on the opening end 14 side. In addition, the flow velocity of the liquid flowing out of the jet port 10 is suppressed from decreasing on the liquid supply port 6 side. Further, in the present invention, since the width a of the opening 7 is wider than the width b of the jet port 10, the flow rate of the liquid flowing out of the jet port 10 is reduced.
It is suppressed from lowering at the side end. Therefore, the liquid is supplied with a uniform flow velocity distribution over the entire width of the strip 1.
【００１０】また、開口７が噴流口１０より離れた位置
に設けてあるので、外側ノズル室４に流入した液は、２
つの方向に分かれて仕切壁５の周方向に回流し、噴流口
１０の入口近傍で合流する間に整流化される。このと
き、仕切壁５は保持板９により外側ノズル室４の中心部
に保持され、保持板９によって、給液口６から導入され
た液の流れ方向が変えられ、流量の板幅方向分布の均一
化がより促進される。そして、ストリップ１に対し傾斜
角θで傾斜させた噴流口１０から、整流化された均一な
流速で給液されるので、渦流の発生を抑制すると同時に
ストリップ１の振動やバタツキを抑止する。Since the opening 7 is provided at a position away from the jet port 10, the liquid flowing into the outer nozzle chamber 4 is
The flow is divided into two directions and circulates in the circumferential direction of the partition wall 5, and is rectified while merging near the inlet of the jet port 10. This and
The partition wall 5 is held at the center of the outer nozzle chamber 4 by the holding plate 9.
And is introduced from the liquid supply port 6 by the holding plate 9.
The flow direction of the liquid is changed, and the flow rate distribution in the plate width direction is uniform.
Is further promoted. Then, since the liquid is supplied at a rectified and uniform flow velocity from the jet port 10 inclined at an inclination angle θ with respect to the strip 1, the generation of the vortex and the vibration and flapping of the strip 1 are suppressed.
【００１１】第１発明の給液ノズルにおいて、開口７の
形状は、図２に示した傾斜スリット状の他、種々の形の
ものを採用することができる。例えば図３（ａ）のよう
に円形の孔を、大きさを漸減させて一列に並べたもの、
図３（ｂ）のように円形の孔を、数を漸減させて配置し
たもの、図３（ｃ）のように平行スリットの両側に円形
の孔を、大きさを漸減させて並べたもの、さらに、角形
の孔を使用したもの、孔の間隔を変えたもの等があり、
仕切り壁５の単位長さ当たりの開口面積が給液口６側か
ら反給液口側へ漸減するものであればよい。In the liquid supply nozzle according to the first aspect of the invention, the opening 7 may have various shapes other than the inclined slit shape shown in FIG. For example, as shown in FIG. 3A, circular holes are gradually reduced in size and arranged in a line.
As shown in FIG. 3 (b), circular holes are arranged with a decreasing number of holes, as shown in FIG. 3 (c), circular holes are arranged on both sides of a parallel slit with decreasing size. In addition, there are those that use square holes, those that change the space between holes, etc.
It is sufficient that the opening area per unit length of the partition wall 5 gradually decreases from the liquid supply port 6 side to the non-liquid supply port side.
【００１２】また、開口７の幅ａを噴流口１０の幅ｂよ
りも広くするが、図２に示すように開口端部１３は、噴
流口端部１５と仕切壁５の同一周位置にあってよく、給
液口６側の開口端部１４は、給液口６側の噴流口端部１
６よりも給液口６側にずらした位置とする。このように
開口７の幅ａを噴流口１０の幅ｂよりも広くすることに
より、噴流口１０からストリップ１に向けて流出する液
の流速が、特に給液口６側の端部で低下するのが抑止さ
れる。さらに、開口７は仕切壁５の周方向１ケ所に設け
た場合の他、噴流口１０より離れた複数ケ所に設けても
よい。The width a of the opening 7 is made larger than the width b of the jet port 10, but the opening end 13 is located at the same circumferential position as the jet port end 15 and the partition wall 5, as shown in FIG. Good
The opening end 14 on the liquid port 6 side is the jet port end 1 on the liquid supply port 6 side.
The position is shifted to the liquid supply port 6 side from the position 6. By making the width a of the opening 7 larger than the width b of the jet port 10 in this manner, the flow velocity of the liquid flowing out from the jet port 10 toward the strip 1 is reduced, particularly at the end on the liquid supply port 6 side. Is deterred. Further, the opening 7 may be provided at a plurality of locations apart from the jet port 10 in addition to the case where the opening 7 is provided at one location in the circumferential direction of the partition wall 5.
【００１３】つぎに、第２発明の例を図４に示す。本例
において、給液ノズル２の垂直断面図は図１と同じであ
り、図４は図１のＡ−Ａ断面矢視図である。この第２発
明の例は、内側ノズル室３の両端側に給液口６が設けて
あり、開口７が、図４に示すように、仕切壁５の単位長
さ当たりの開口面積が、両給液口６側の開口端部１３お
よび１４から開口中心部１７へ漸減する形となっている
他は、図１および図２に示した第１発明の例と同様であ
る。内側ノズル室３には、両端から液が導入されるの
で、中央部の静圧が高くなるが、開口７の形が上記のよ
うになっているので、内側ノズル室３から外側ノズル室
４に流出する液は、開口中心部１７では出難く、開口端
部１３および１４では出易くなり、噴流口１０から流出
する液の流速が両給液口６側で低下するのが抑制され
る。さらに本発明においては、開口７の幅ａが噴流口１
０の幅ｂよりも広くしてあるので、噴流口１０から流出
する液の流速が、両給液口６側の端部で低下するのが抑
制される。したがって、ストリップ１の全幅にわたって
均一な流速分布で液が供給される。Next, an example of the second invention is shown in FIG. In this example, the vertical cross-sectional view of the liquid supply nozzle 2 is the same as FIG. 1, and FIG. 4 is a cross-sectional view taken along the line AA of FIG. In the example of the second invention, the liquid supply ports 6 are provided at both ends of the inner nozzle chamber 3, and the opening 7 has an opening area per unit length of the partition wall 5, as shown in FIG. It is the same as the example of the first invention shown in FIGS. 1 and 2 except that the shape gradually decreases from the opening ends 13 and 14 on the liquid supply port 6 side to the opening center portion 17. Since the liquid is introduced into the inner nozzle chamber 3 from both ends, the static pressure at the center increases, but since the shape of the opening 7 is as described above, the inner nozzle chamber 3 moves from the inner nozzle chamber 3 to the outer nozzle chamber 4. The outflowing liquid is difficult to come out at the opening center portion 17 and becomes easy to come out at the opening ends 13 and 14, and the flow rate of the liquid flowing out from the jet port 10 is suppressed from decreasing on both the liquid supply ports 6 side. Furthermore, in the present invention, the width a of the opening 7 is
Since the width b is larger than the width b of 0, the flow velocity of the liquid flowing out of the jet port 10 is suppressed from decreasing at the ends on the liquid supply port 6 side. Therefore, the liquid is supplied with a uniform flow velocity distribution over the entire width of the strip 1.
【００１４】第２発明の例においても、開口７の形は、
図４に示した傾斜スリット状の例のほか、図３の各例を
左右対称にしたもの等、第１発明の例と同様、種々の形
とすることができる。また、開口端部１３および１４
は、双方とも噴流口１０の端部よりも給液口６側にずら
した位置とする。このような第２発明は、第１発明の場
合よりも幅の広いストリップ等の板材に適用できる。ま
た、設置スペースの制約から給液ノズルを小径化したい
場合にも有効である。[0014] Also in the example of the second invention, the shape of the opening 7 is
In addition to the example of the inclined slit shape shown in FIG. 4, various shapes can be formed similarly to the example of the first invention, such as each example of FIG. Also, the open ends 13 and 14
Are both shifted to the liquid supply port 6 side from the end of the jet port 10. Such a second invention can be applied to a plate material such as a strip which is wider than the case of the first invention. It is also effective when it is desired to reduce the diameter of the liquid supply nozzle due to restrictions on the installation space.
【００１５】さらに、第１発明および第２発明の給液ノ
ズルにおいて、外側ノズル室４内に整流板８を設けるの
が好ましい。整流板８は複数の小孔を有し、図１の例で
は仕切壁５の周方向に４枚設けてあり、開口７から外側
ノズル室４内に流入した液は、この整流板８を通過する
ことにより、脈流や振動が除かれ、整流化がより促進さ
れる。なお図１、図２および図４に示す９は、仕切壁５
を外側ノズル室４の中心部に保持するための保持板であ
るが、給液口６から導入された液の流れの方向を変える
作用もする。この保持板９は、図１に示す扇型で小孔を
有するもののほか、複数の支柱からなるもの等であって
もよい。Further, in the liquid supply nozzles of the first invention and the second invention, it is preferable to provide a straightening plate 8 in the outer nozzle chamber 4. The current plate 8 has a plurality of small holes, and in the example of FIG. 1, four sheets are provided in the circumferential direction of the partition wall 5, and the liquid flowing into the outer nozzle chamber 4 from the opening 7 passes through the current plate 8. By doing so, pulsating flow and vibration are eliminated, and rectification is further promoted. 1, 2 and 4 is the partition wall 5
Is held at the center of the outer nozzle chamber 4, but also acts to change the direction of the flow of the liquid introduced from the liquid supply port 6. The holding plate 9 may be a fan-shaped one having a small hole as shown in FIG.
【００１６】以上述べた第１発明および第２発明におい
て、給液ノズル各部位の作用をまとめるとつぎのとおり
である。すなわち、内側ノズル室３は給液口６から導入
された液を貯溜し、開口７はその特有の形状により、内
側ノズル室３から外側ノズル室４に流入する流量の板幅
方向分布を均一化する。外側ノズル室４は、流量の板幅
方向分布をより均一化するとともに、噴流口１０に流入
する液の流れを整流状態にする。内側ノズル室３と外側
ノズル室４の面積比割合（図１に示される断面の面積
比）は、１．０〜２．５：１．０が適当である。外側ノ
ズル室４内に、複数の小孔を有する整流板８を設け、仕
切壁５の周方向に流れる液が整流板８を通り抜けるよう
にすると、整流化がより促進され、また仕切壁５の長さ
方向に流れる液が衝突するように保持板９を設けると、
流量の板幅方向分布の均一化がより促進される。噴流口
１０は、ストリップ１に対し適正な傾斜角θをもって、
板幅方向均一な流速で整流化された液を噴射し、渦流の
発生を抑制すると同時にストリップ１の振動やバタツキ
を抑止する。傾斜角θは１５〜４５゜が適当である。そ
して、開口７の幅ａを噴流口１０の幅ｂよりも広くした
ことにより、ストリップ１に噴射される液の流速が給液
口６側の端部で低下するのが防止される。In the first and second aspects of the present invention, the operation of each part of the liquid supply nozzle is summarized as follows. That is, the inner nozzle chamber 3 stores the liquid introduced from the liquid supply port 6, and the opening 7 uniformizes the distribution of the flow rate flowing from the inner nozzle chamber 3 to the outer nozzle chamber 4 in the plate width direction due to its unique shape. I do. The outer nozzle chamber 4 makes the distribution of the flow rate in the plate width direction more uniform, and makes the flow of the liquid flowing into the jet port 10 into a rectified state. The area ratio of the inner nozzle chamber 3 to the outer nozzle chamber 4 (area ratio of the cross section shown in FIG. 1) is suitably 1.0 to 2.5: 1.0. When a flow straightening plate 8 having a plurality of small holes is provided in the outer nozzle chamber 4 so that the liquid flowing in the circumferential direction of the partition wall 5 passes through the flow straightening plate 8, the flow straightening is further promoted, and the partition wall 5 is formed. When the holding plate 9 is provided so that the liquid flowing in the length direction collides,
Uniform distribution of the flow rate in the plate width direction is further promoted. The jet port 10 has an appropriate inclination angle θ with respect to the strip 1,
The rectified liquid is jetted at a uniform flow velocity in the plate width direction to suppress the generation of a vortex and to suppress the vibration and fluttering of the strip 1. The inclination angle θ is suitably 15 to 45 °. By making the width a of the opening 7 larger than the width b of the jet port 10, the flow velocity of the liquid jetted to the strip 1 is prevented from decreasing at the end on the liquid feed port 6 side.
【００１７】また、本発明の給液ノズルは、ストリップ
等の板材に対し液を上向きに噴射するものに限らず、下
向きでもよく、あるいは水平方向に通板する板材に対し
傾斜させて液を噴射するものでもよい。さらに、板材の
表裏に配置した給液ノズルは、図１、図２および図４の
ような一体構造のものに限らず、別体であってもよく、
また用途によっては板材の片面のみに給液するものであ
ってもよい。用途としては、前記の洗浄、酸洗、メッキ
のほか、脱脂等にも使用でき、さらに、水あるいは気水
を噴射する冷却にも使用できる。Further, the liquid supply nozzle of the present invention is not limited to the type in which the liquid is jetted upward to a plate material such as a strip, and may be downward, or the liquid jet nozzle is inclined to a plate material which passes horizontally. You may do it. Further, the liquid supply nozzles arranged on the front and back of the plate material are not limited to those having an integral structure as shown in FIGS. 1, 2, and 4, but may be separate bodies.
Depending on the application, liquid may be supplied to only one side of the plate material. It can be used for cleaning, pickling, plating, degreasing, etc., and also for cooling by spraying water or steam.
【００１８】[0018]
（実施例１） 図１および図２に示す本発明給液ノズル
を使用して、板幅：１０００mm、板厚：０．１mmの薄鋼
板ストリップの両面に、合金メッキ処理を行った。図１
および図２において、内側ノズル室３の直径：１５０m
m、外側ノズル室４の外径：２００mm、仕切壁５の厚
さ：１０mm、開口７の幅ａ：１３００mm、噴流口１０の
幅ｂ：１２００mmとし、開口７は図２のような傾斜スリ
ットで開口端部１４のスリット幅：３０mm、開口端部１
３のスリット幅：１０mm、噴流口の傾斜角θ：３０゜と
した。ストリップの通板速度は、３０〜２００ｍ／分で
あった。Example 1 Both surfaces of a thin steel plate strip having a width of 1000 mm and a thickness of 0.1 mm were subjected to alloy plating using the liquid supply nozzle of the present invention shown in FIGS. 1 and 2. FIG.
2 and FIG. 2, the diameter of the inner nozzle chamber 3 is 150 m.
m, the outer diameter of the outer nozzle chamber 4 is 200 mm, the thickness of the partition wall 5 is 10 mm, the width a of the opening 7 is 1300 mm, the width b of the jet port 10 is 1200 mm, and the opening 7 is an inclined slit as shown in FIG. Slit width of opening end 14: 30 mm, opening end 1
The slit width of No. 3 was 10 mm, and the inclination angle θ of the jet port was 30 °. The strip passing speed was 30 to 200 m / min.
【００１９】メッキ液は内側ノズル室３の給液口６か
ら、流量約０．５〜３ｍ3 ／分で供給し、噴流口１０出
口の平均流速は、０．５〜３．０ｍ／秒であった。そし
て流速の板幅方向分布は、図５のとおりであった。図５
において、実線が上記本発明例の結果であり、分布はほ
ぼ均一である。破線は開口７の幅ａを噴流口１０の幅ｂ
と同じ１２００mmにしたほかは上記本発明例と同一条件
の比較例で、両端の流速が低下している。一点鎖線は図
７に示す従来ノズルを用い、ノズル各部位の寸法以外は
上記本発明例と同一条件でテストした従来例であり、板
幅中央部の流速が高く両端が低い分布となっている。The plating solution is supplied from the supply port 6 of the inner nozzle chamber 3 at a flow rate of about 0.5 to 3 m 3 / min, and the average flow velocity at the outlet of the jet port 10 is 0.5 to 3.0 m / sec. there were. The distribution of the flow velocity in the plate width direction was as shown in FIG. FIG.
, The solid line is the result of the example of the present invention, and the distribution is almost uniform. The broken line indicates the width a of the opening 7 and the width b of the jet port 10.
A comparative example under the same conditions as the above-mentioned present invention example except that the distance was set to 1200 mm, which is the same as that of the present invention example, and the flow velocity at both ends was reduced. The dashed line is a conventional example using the conventional nozzle shown in FIG. 7 and tested under the same conditions as the above-described present invention example except for the dimensions of each part of the nozzle. .
【００２０】なお、図５において縦軸の流速偏差は、各
板幅位置での流速Ｖｉと、全板幅位置の平均流速Ｖｏと
の比（Ｖｉ／Ｖｏ）であり、横軸の板幅方向指数は、板
幅一端から各板幅位置までの距離Ｗｉと、板幅Ｗｏとの
比（Ｗｉ／Ｗｏ）である。In FIG. 5, the flow velocity deviation on the vertical axis is a ratio (Vi / Vo) between the flow velocity Vi at each plate width position and the average flow velocity Vo at all the plate width positions, and the horizontal axis is the plate width direction. The index is a ratio (Wi / Wo) between the distance Wi from one end of the plate width to each plate width position and the plate width Wo.
【００２１】また上記本発明例において、メッキ処理中
のストリップは振動やバタツキがなく、板幅方向および
長さ方向ともに均一なメッキが施された。上記比較例で
は、ストリップの通板状況は本発明例とほぼ同等であっ
たが、板幅方向両端部でのメッキ組成の不均一が生じ
た。従来例では、板幅方向両端部で組成の不均一や、場
合によってはヤケと呼ばれる不良が発生した。Further, in the above-mentioned embodiment of the present invention, the strip being plated is free from vibration and flapping, and is uniformly plated in both the width direction and the length direction. In the above comparative example, the strip passing condition was almost the same as that of the present invention, but the plating composition was uneven at both ends in the plate width direction. In the conventional example, a non-uniform composition at both end portions in the width direction of the sheet and a defect called burn in some cases occurred.
【００２２】（実施例２） 図１および図４に示す本発
明給液ノズルを使用して、板幅：１０００mm、板厚：
０．１mmの薄鋼板ストリップの両面に、合金メッキ処理
を行った。図１および図４において、内側ノズル室３の
直径：１５０mm、外側ノズル室４の外径：２００mm、仕
切壁５の厚さ：１０mm、開口７の幅ａ：１３００mm、噴
流口１０の幅ｂ：１２００mmとし、開口７は図４のよう
な傾斜スリットで開口端部１３および１４のスリット
幅：３０mm、開口中央部１７のスリット幅：１０mm、噴
流口の傾斜角θ：３０゜とした。ストリップの通板速度
は、３０〜２００ｍ／分であった。Example 2 Using the liquid supply nozzle of the present invention shown in FIGS. 1 and 4, a plate width: 1000 mm and a plate thickness:
Alloy plating was performed on both sides of a 0.1 mm thin steel strip. 1 and 4, the diameter of the inner nozzle chamber 3 is 150 mm, the outer diameter of the outer nozzle chamber 4 is 200 mm, the thickness of the partition wall 5 is 10 mm, the width a of the opening 7 is 1300 mm, and the width b of the jet port 10 is b: The opening 7 is an inclined slit as shown in FIG. 4, and the slit width of the opening ends 13 and 14 is 30 mm, the slit width of the opening central portion 17 is 10 mm, and the inclination angle θ of the jet port is 30 °. The strip passing speed was 30 to 200 m / min.
【００２３】メッキ液は、内側ノズル室３両側の給液口
６からそれぞれ、流量約０．５〜３ｍ3 ／分で供給し、
噴流口１０出口の平均流速は、０．５〜３．０ｍ／秒で
あった。そして流速の板幅方向分布は、図６のとおりで
あった。図６において、実線が上記本発明例の結果であ
り、分布はほぼ均一である。破線は開口７の幅ａを噴流
口１０の幅ｂと同じ１２００mmにしたほかは上記本発明
例と同一条件の比較例で、両端の流速が低下している。
一点鎖線は図７に示す従来ノズルを用い、ノズル各部位
の寸法以外は上記本発明例と同一条件でテストした従来
例であり、板幅中央部の流速が高く両端が低い分布とな
っている。なお図６において、縦軸および横軸の表示は
上記実施例１（図５）と同じである。The plating liquid is supplied from the liquid supply ports 6 on both sides of the inner nozzle chamber 3 at a flow rate of about 0.5 to 3 m 3 / min.
The average flow velocity at the outlet of the jet port 10 was 0.5 to 3.0 m / sec. The distribution of the flow velocity in the plate width direction was as shown in FIG. In FIG. 6, the solid line is the result of the example of the present invention, and the distribution is almost uniform. The dashed line is a comparative example under the same conditions as the above-described present invention example except that the width a of the opening 7 is set to 1200 mm which is the same as the width b of the jet port 10, and the flow velocity at both ends is reduced.
The dashed line is a conventional example using the conventional nozzle shown in FIG. 7 and tested under the same conditions as the above-described present invention example except for the dimensions of each part of the nozzle. . In FIG. 6, the display of the vertical axis and the horizontal axis is the same as that of the first embodiment (FIG. 5).
【００２４】また上記本発明例において、メッキ処理中
のストリップは振動やバタツキがなく、板幅方向および
長さ方向ともに均一なメッキが施された。上記比較例で
は、ストリップの通板状況は本発明例とほぼ同等であっ
たが、板幅方向両端部でのメッキ組成の不均一が生じ
た。従来例では、板幅方向両端部で組成の不均一や、場
合によってはヤケと呼ばれる不良が発生した。Further, in the above-described embodiment of the present invention, the strip being plated is free from vibration and flapping, and is uniformly plated in both the width direction and the length direction. In the above comparative example, the strip passing condition was almost the same as that of the present invention, but the plating composition was uneven at both ends in the plate width direction. In the conventional example, a non-uniform composition at both end portions in the width direction of the sheet and a defect called burn in some cases occurred.
【００２５】[0025]
【発明の効果】本発明によれば、大流量の液体を脈動や
振動が非常に小さい整流状態の液流れとし、かつストリ
ップ等の被処理材に供給する液の幅方向流速分布を均一
にすることができる。このため被処理材が０．１mm程度
の非常に薄い場合に高速処理を行っても振動やバタツキ
を生じさせることなく、皺や折れを発生させるおそれが
ない。またメッキ処理を行う際に、メッキ厚さやメッキ
組成を、全面均一に厳格な管理基準の中で行えるほか、
洗浄、酸洗、脱脂さらには水あるいは気水を使用する冷
却等、多目的に高効率で使用することができ、むらなく
均一な処理が行える。According to the present invention, a large flow amount of liquid is a rectified liquid flow with very little pulsation and vibration, and the widthwise flow velocity distribution of the liquid supplied to the material to be processed such as a strip is made uniform. be able to. Therefore, even when high-speed processing is performed when the material to be processed is very thin, such as about 0.1 mm, there is no possibility of generating wrinkles or breakage without generating vibration or flapping. In addition, when performing the plating process, the plating thickness and plating composition can be controlled uniformly and under strict management standards,
Washing, pickling, degreasing, and cooling using water or steam can be used for various purposes with high efficiency, and uniform and uniform treatment can be performed.
【図１】本発明例を示す断面図である。FIG. 1 is a sectional view showing an example of the present invention.
【図２】本発明の第１発明例を示し、図１のＡ−Ａ断面
矢視図である。FIG. 2 shows a first example of the present invention, and is a sectional view taken along the line AA of FIG.
【図３】本発明の第１発明例における開口７の別の例を
示す平面図である。FIG. 3 is a plan view showing another example of the opening 7 in the first example of the present invention.
【図４】本発明の第２発明例を示し、図１のＡ−Ａ断面
矢視図である。FIG. 4 is a sectional view taken along the line AA of FIG. 1, showing the second invention example of the present invention.
【図５】本発明の第１発明の実施例を、比較例および従
来例と比較して示すグラフである。FIG. 5 is a graph showing an example of the first invention of the present invention in comparison with a comparative example and a conventional example.
【図６】本発明の第１発明の実施例を、比較例および従
来例と比較して示すグラフである。FIG. 6 is a graph showing an example of the first invention of the present invention in comparison with a comparative example and a conventional example.
【図７】（ａ）は従来例を示す断面図、（ｂ）は（ａ）
のＣ−Ｃ断面矢視図である。7A is a sectional view showing a conventional example, and FIG. 7B is a sectional view of FIG.
It is CC sectional view taken on the line of FIG.
【図８】別の従来例を示す斜視図である。FIG. 8 is a perspective view showing another conventional example.
１：ストリップ ２：給液ノズル ３：内側ノズル室 ４：外側ノズル室 ５：仕切壁 ６：給液口 ７：開口 ８：整流板 ９：保持板 １０：噴流口 １１：通板部 １２：内側ノズル室端部 １３，１４：開口端部 １５，１６：噴流口端部 １７：開口中心部 ２０：ヘッダー ２１：孔 ２２：案内板 ２３：補助案内板 ２４：ノズル細管 Ｖｉ：各板幅位置での流速 Ｖｏ：全板幅位置の平均流速 Ｖｉ／Ｖｏ：流速偏差 Ｗｉ：板幅一端から各板幅位置までの距離 Ｗｏ：板幅 Ｗｉ／Ｗｏ：板幅方向指数 1: strip 2: liquid supply nozzle 3: inner nozzle chamber 4: outer nozzle chamber 5: partition wall 6: liquid supply port 7: opening 8: straightening plate 9: holding plate 10: jet port 11: passing plate portion 12: inside Nozzle chamber end 13, 14: Open end 15, 16: Jet end 17: Opening center 20: Header 21: Hole 22: Guide plate 23: Auxiliary guide plate 24: Nozzle tube Vi: At each plate width position Flow velocity Vo: average flow velocity at all plate width positions Vi / Vo: flow velocity deviation Wi: distance from one end of the plate width to each plate width position Wo: plate width Wi / Wo: plate width direction index
───────────────────────────────────────────────────── フロントページの続き (72)発明者 脇山 宏 福岡県北九州市戸畑区大字中原46−59 新日本製鐵株式会社 機械・プラント事 業部内 (56)参考文献 特開 平３−16666（ＪＰ，Ａ) 実開 昭59−138467（ＪＰ，Ｕ) 実開 昭54−184299（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B05B 1/04 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroshi Wakiyama 46-59 Ohara Nakahara, Tobata-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Machinery & Plant Business Department (56) References JP-A-3-16666 (JP) , A) Japanese Utility Model Showa 59-138467 (JP, U) Japanese Utility Model Showa 54-184299 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B05B 1/04
Claims (3)
と外側ノズル室、仕切壁を外側ノズル室の中心部に保持
する保持板、内側ノズル室の一端側に設けられた給液
口、仕切壁周方向の少なくとも１ケ所に設けられた開
口、外側ノズル室と連通し通板部へ傾斜角をもって給液
する噴流口を有し、開口は噴流口より離れた位置に設け
るとともに、仕切壁単位長さ当たりの開口面積が給液口
側から反給液口側へ漸減する形状とし、かつ開口の給液
口側端部を噴流口の給液口側端部よりも給液口側にずら
すことで開口幅を噴流口幅よりも広くしたことを特徴と
する給液ノズル。1. An inner nozzle chamber and an outer nozzle chamber partitioned by a cylindrical partition wall, and the partition wall is held at the center of the outer nozzle chamber.
Holding plate, a liquid supply port provided at one end of the inner nozzle chamber, an opening provided at at least one location in the circumferential direction of the partition wall, and a jet port which communicates with the outer nozzle chamber and supplies liquid to the passage plate portion at an oblique angle. The opening is provided at a position distant from the jet port, the opening area per unit length of the partition wall is gradually reduced from the liquid supply port side to the opposite liquid supply port side, and the liquid supply of the opening
Shift the mouth end to the liquid supply port side of the liquid supply port end of the jet port.
A liquid supply nozzle characterized in that the width of the opening is made wider than the width of the jet port.
と外側ノズル室、仕切壁を外側ノズル室の中心部に保持
する保持板、内側ノズル室の両端側に設けられた給液
口、仕切壁周方向の少なくとも１ケ所に設けられた開
口、外側ノズル室と連通し通板部へ傾斜角をもって給液
する噴流口を有し、開口は噴流口より離れた位置に設け
るとともに、仕切壁単位長さ当たりの開口面積が給液口
側から中心部へ漸減する形状とし、かつ開口の端部を噴
流口の端部よりも給液口側にずらすことで開口幅を噴流
口幅よりも広くしたことを特徴とする給液ノズル。2. An inner nozzle chamber and an outer nozzle chamber partitioned by a cylindrical partition wall, and the partition wall is held at the center of the outer nozzle chamber.
Holding plate, liquid supply ports provided at both ends of the inner nozzle chamber, openings provided at at least one location in the circumferential direction of the partition wall, and a jet port which communicates with the outer nozzle chamber and supplies liquid at an inclined angle to the passage plate portion. The opening is provided at a position distant from the jet port, the opening area per unit length of the partition wall is gradually reduced from the liquid supply port side to the center, and the end of the opening is jetted.
A liquid supply nozzle characterized in that the width of the opening is wider than the width of the jet port by being shifted toward the liquid supply port side from the end of the flow port.
ことを特徴とする請求項１または２記載の給液ノズル。3. The liquid supply nozzle according to claim 1, wherein a flow regulating plate is provided in a flow path of the outer nozzle chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5249602A JP3022093B2 (en) | 1993-10-05 | 1993-10-05 | Liquid supply nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5249602A JP3022093B2 (en) | 1993-10-05 | 1993-10-05 | Liquid supply nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07100407A JPH07100407A (en) | 1995-04-18 |
| JP3022093B2 true JP3022093B2 (en) | 2000-03-15 |
Family
ID=17195466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5249602A Expired - Fee Related JP3022093B2 (en) | 1993-10-05 | 1993-10-05 | Liquid supply nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3022093B2 (en) |
-
1993
- 1993-10-05 JP JP5249602A patent/JP3022093B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07100407A (en) | 1995-04-18 |
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