JP3275760B2 - Steel plate cooling system - Google Patents
Steel plate cooling systemInfo
- Publication number
- JP3275760B2 JP3275760B2 JP05617697A JP5617697A JP3275760B2 JP 3275760 B2 JP3275760 B2 JP 3275760B2 JP 05617697 A JP05617697 A JP 05617697A JP 5617697 A JP5617697 A JP 5617697A JP 3275760 B2 JP3275760 B2 JP 3275760B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- water supply
- header
- nozzle
- cooling
- 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
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱間圧延鋼板を均
一に冷却する冷却装置、特に２００〜１１００°Ｃに加
熱された鋼板を焼入れ、あるいは制御冷却するための鋼
板の冷却装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling apparatus for uniformly cooling a hot-rolled steel sheet, and more particularly to a cooling apparatus for quenching a steel sheet heated to 200 to 1100.degree. is there.
【０００２】[0002]
【従来の技術】例えば、厚板圧延においては、熱間圧延
直後の鋼板を５００°Ｃ程度まで水冷する制御圧延や、
１５０°Ｃ以下まで水冷して直接焼入れする加工熱処理
などが行われている。鋼板冷却装置においては、ローラ
テーブル上の鋼板に対して上下面側から冷却水を噴射し
て冷却を行っているが、鋼板の板幅が広いことから、板
幅方向での均一な冷却が要求され、従来から板幅方向の
冷却水の水量不均一を解消するための技術開発が行われ
てきた。2. Description of the Related Art For example, in plate rolling, controlled rolling in which a steel sheet immediately after hot rolling is water-cooled to about 500 ° C.,
Working heat treatment of cooling directly to 150 ° C. or lower by water cooling or the like is performed. In the steel plate cooling device, cooling water is sprayed from the upper and lower sides to the steel plate on the roller table to perform cooling.However, since the steel plate is wide, uniform cooling in the width direction is required. Conventionally, technology has been developed to eliminate unevenness in the amount of cooling water in the plate width direction.
【０００３】例えば、図８に示すのは、鋼板の下側から
の冷却を行う鋼板冷却装置であり、図８(a) に示すよう
に、複数のノズル１が間隔をおいて複数突設された冷却
水供給ヘッダー２の一端部に冷却水供給管３を接続する
と、流体の流れが遮られる反供給側の管端部分で最も圧
力が大きくなり、水量分布が図８(b) に示すように不均
一となり、鋼板に冷却むらが発生し、形状不良や機械試
験値不良の原因となる。そのため、その解決策として、
実開昭６２−１９３９０９号公報（鋼板冷却装置）で
は、図９(a) 、(b) に示すように、ノズル１と対向する
位置に冷却水供給管３を設け、この冷却水供給管３の出
口に対向するように緩衝部材５０を冷却水供給ヘッダー
２内に配置し、この緩衝部材５０により冷却水が冷却水
供給管３から直接ノズル１へ流入するのを防止し、冷却
水供給ヘッダー２の内の圧力を均一にすることで、図９
(c) に示すような均一な水量分布を得ている。[0003] For example, Fig. 8 shows a steel plate cooling device for cooling the steel plate from below, and as shown in Fig. 8 (a), a plurality of nozzles 1 are protruded at intervals. When the cooling water supply pipe 3 is connected to one end of the cooling water supply header 2, the pressure becomes highest at the pipe end on the side opposite to the supply side where the flow of fluid is interrupted, and the water amount distribution is as shown in FIG. In addition, uneven cooling occurs on the steel sheet, which causes shape failure and mechanical test value failure. Therefore, as a solution,
In Japanese Unexamined Utility Model Publication No. 62-193909 (steel plate cooling apparatus), a cooling water supply pipe 3 is provided at a position facing the nozzle 1 as shown in FIGS. A buffer member 50 is disposed in the cooling water supply header 2 so as to face the outlet of the cooling water supply header 2. The buffer member 50 prevents the cooling water from flowing directly from the cooling water supply pipe 3 into the nozzle 1, and the cooling water supply header 9 by equalizing the pressure in FIG.
As shown in (c), a uniform water distribution is obtained.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述の
ような従来の緩衝部材を冷却水供給ヘッダー内に配設す
る方法では、緩衝部材の取付け固定方法が難しく、また
耐久性にも問題があり、特に大流量の場合には、抵抗が
大きくなり、緩衝部材が脱落して機能を満足しなくなる
問題がある。However, in the conventional method of disposing the buffer member in the cooling water supply header as described above, the method of mounting and fixing the buffer member is difficult, and there is a problem in durability. Particularly, in the case of a large flow rate, there is a problem that the resistance increases and the buffer member falls off and the function is not satisfied.
【０００５】本発明は、前述のような問題点を解消する
ためになされたもので、その目的は、比較的簡単な構成
で均一な水量分布を得ることができると共に、大流量に
おいても使用可能で耐久性に優れた鋼板の冷却装置を提
供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a uniform water amount distribution with a relatively simple structure and to be able to be used even at a large flow rate. Another object of the present invention is to provide a cooling device for a steel sheet which is excellent in durability.
【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、本発明では、図１(a) に示すように、冷却水供給ヘ
ッダー２に冷却水供給管３から冷却水を供給し、冷却水
供給ヘッダー２に設けた複数個のノズル１から冷却水を
噴射して鋼板の冷却を行う冷却装置において、前記冷却
水供給管３を前記ノズル１間に位置するように前記冷却
水供給ヘッダー２の長手方向中間部に複数配設すると共
に、下記の（１）〜（３）式を満足するように、前記ノ
ズル１の基部をその基端流入部１Ａが冷却水供給ヘッダ
ー２内に突出するように冷却水供給ヘッダー２の管壁部
に取付け、かつ、前記冷却水供給管３の先端部をその先
端流出部３Ａが冷却水供給ヘッダー２内に突出するよう
に冷却水供給ヘッダー２の管壁部に取付けたことを特徴
とする（請求項１）。 ｄ1 ＋ｄ3 ＜Ｄ2 ……（１） ｄ1 ＞Ｄ1 ／２ ……（２） ｄ3 ＞Ｄ3 ／２ ……（３） ｄ1 ：ノズルの基部端面とヘッダーの内壁面までの距離 ｄ3 ：供給管の先端部端面とヘッダーの内壁面までの距
離 Ｄ1 ：ノズルの内径 Ｄ2 ：ヘッダーの内径 Ｄ3 ：供給管の内径In order to achieve the above object, according to the present invention, as shown in FIG. 1 (a), cooling water is supplied from a cooling water supply pipe 3 to a cooling water supply header 2, and cooling water is supplied to the cooling water supply header 2. In a cooling device that cools a steel sheet by injecting cooling water from a plurality of nozzles 1 provided in a supply header 2, the cooling water supply pipe 3 is positioned between the nozzles 1 so that the cooling water supply pipe 3 is positioned between the nozzles 1. A plurality of nozzles are provided in the middle portion in the longitudinal direction, and the base inflow portion 1A of the nozzle 1 projects into the cooling water supply header 2 so as to satisfy the following expressions (1) to (3). The cooling water supply header 2 is attached to the pipe wall of the cooling water supply header 2, and the tip of the cooling water supply pipe 3 is connected to the pipe wall of the cooling water supply header 2 so that the tip outflow portion 3 </ b> A projects into the cooling water supply header 2. (Claim 1). d 1 + d 3 <D 2 ...... (1) d 1> D 1/2 ...... (2) d 3> D 3/2 ...... (3) d 1: up to the inner wall surface of the base end surface of the nozzle and header Distance d 3 : distance between the end face of the supply pipe end and the inner wall surface of the header D 1 : inner diameter of nozzle D 2 : inner diameter of header D 3 : inner diameter of supply pipe
【０００７】具体的には、本発明の図１(a) のノズル１
間に冷却水供給管３を配設するタイプでは、図２に示す
ように、（ａ）ノズル１と冷却水供給管３が平行に対向
する場合（図２(a) 参照) と、（ｂ）ノズル１と冷却水
供給管３が交差配置となる場合（図２(b) 参照) があ
る。図２(a) の対向する場合には、ノズル１・冷却水供
給ヘッダー２・冷却水供給管３の各寸法が次の（１）〜
（３）式を満足するように、サイズおよび位置関係を決
定する。なお、この場合、ノズル１および冷却水供給管
３の中心軸線を一致させているが、ずらしても、（１）
〜（３）式を満足すれば、流れに支障がないので、ノズ
ル１と冷却水供給管３の位置が図の上下方向に平行にず
れていてもよい。[0007] nozzle 1 Specifically, diagram of the invention 1 (a)
In the type in which the cooling water supply pipe 3 is disposed between the nozzle 1 and the cooling water supply pipe 3 as shown in FIG. 2 (a) (see FIG. 2A), In some cases, the nozzle 1 and the cooling water supply pipe 3 are intersected (see FIG. 2 (b)). 2 (a), the dimensions of the nozzle 1, the cooling water supply header 2 and the cooling water supply pipe 3 are as follows (1) to (1).
The size and the positional relationship are determined so as to satisfy the expression (3). In this case, the central axes of the nozzle 1 and the cooling water supply pipe 3 are aligned, but even if they are shifted, (1)
If the formulas (3) to (3) are satisfied, there is no problem in the flow, so that the positions of the nozzle 1 and the cooling water supply pipe 3 may be shifted in parallel in the vertical direction in the figure.
【０００８】 ｄ1 ＋ｄ3 ＜Ｄ2 ……（１） ｄ1 ＞Ｄ1 ／２ ……（２） ｄ3 ＞Ｄ3 ／２ ……（３） ｄ1 ：ノズル１の基部端面と冷却水ヘッダー２の内壁面
までの距離 ｄ3 ：供給管３の先端部端面と冷却水ヘッダー２の内壁
面までの距離 Ｄ1 ：ノズル１の内径 Ｄ2 ：ヘッダー２の内径 Ｄ3 ：供給管３の内径[0008] d 1 + d 3 <D 2 ...... (1) d 1> D 1/2 ...... (2) d 3> D 3/2 ...... (3) d 1: base end surface of the nozzle 1 and the cooling water Distance to the inner wall surface of the header 2 d 3 : Distance between the end surface of the supply pipe 3 and the inner wall surface of the cooling water header 2 D 1 : Inner diameter of the nozzle 1 D 2 : Inner diameter of the header 2 D 3 : Supply pipe 3 Inside diameter
【０００９】図２(b) の交差配置となる場合には、（ｂ
−１）ノズル１と冷却水供給管３のなす角度αが９０〜
２７０°（１８０°を除く）で供給側とノズル側の流れ
が同じ方向の場合と、（ｂ−２）角度αが０〜９０°お
よび２７０〜３６０°で供給側とノズル側の流れが逆方
向の場合がある。（ｂ−１）の場合には、（１）〜
（３）式を満足するようにすればよく、（ｂ−２）の場
合には、供給側とノズル側の流れが全く異なるため、
（２）、（３）式を満足するようにすればよい。In the case of the intersection arrangement shown in FIG.
-1) The angle α between the nozzle 1 and the cooling water supply pipe 3 is 90 to
At 270 ° (excluding 180 °), the flow on the supply side and the nozzle side are in the same direction, and (b-2) when the angle α is 0 to 90 ° and 270 to 360 °, the flow on the supply side and the nozzle side are opposite. May be direction. In the case of (b-1), (1) to
It suffices to satisfy the expression (3). In the case of (b-2), since the flow on the supply side and the flow on the nozzle side are completely different,
What is necessary is to satisfy the expressions (2) and (3).
【００１０】以上のような構成において、本発明の図１
(a) のノズル１間に冷却水供給管３を配設するタイプで
は、ノズル１の基端流入部１Ａおよび冷却水供給管３の
先端流出部３Ａが冷却水供給ヘッダー２内に適当な長さ
で突出しているため、冷却水供給管３からノズル１へ直
接流入するのが防止され、さらに冷却水供給ヘッダー２
の中間部に取付けられた複数の冷却水供給管３により冷
却水供給ヘッダー２の長手方向の内部圧力が均一とな
り、図３に示すように、各々のノズル１から噴出される
冷却水量が均一化される。[0010] In the above configuration, diagram of the invention 1
In the type (a) in which the cooling water supply pipe 3 is disposed between the nozzles 1, the base inflow section 1 A of the nozzle 1 and the distal outflow section 3 A of the cooling water supply pipe 3 are provided with an appropriate length in the cooling water supply header 2. As a result, the cooling water supply pipe 3 is prevented from directly flowing into the nozzle 1 and the cooling water supply header 2
The internal pressure in the longitudinal direction of the cooling water supply header 2 is made uniform by the plurality of cooling water supply pipes 3 attached to the middle part of the nozzle, and the amount of cooling water ejected from each nozzle 1 is made uniform as shown in FIG. Is done.
【００１１】本発明の図１(a) の場合、従来のような緩
衝部材を取付け固定する必要がなく、ノズル１の基端流
入部１Ａおよび冷却水供給管３の先端流出部３Ａが冷却
水供給ヘッダー２内に突出するように取付ければよいた
め、比較的簡単な構成とすることができ、また余計な部
材がないため大流量においても使用可能で耐久性に優れ
ている。In the case of FIG. 1 (a) of the present invention, there is no need to attach and fix a buffer member as in the prior art, and the base water inlet 1A of the nozzle 1 and the water outlet 3A of the cooling water supply pipe 3 are provided with cooling water. Since it is sufficient to mount it so as to protrude into the supply header 2, a relatively simple configuration can be achieved, and since there is no extra member, it can be used even at a large flow rate and has excellent durability.
【００１２】[0012]
【発明の実施の形態】以下、本発明を図示する一実施例
に基づいて詳細に説明する。これは、厚板圧延における
鋼板の冷却装置に適用した例である。図４は、本発明の
鋼板の冷却装置の実施例を示す平面図である。図５は構
成が本発明とは異なる例を示す平面図である。図６に本
発明の実施例において寸法を変化させて水量の均一性を
調査した例、図７に本発明の実施例において吹き上げ高
さを調査した例を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. This is an example in which the present invention is applied to a cooling device for a steel plate in thick plate rolling. FIG. 4 is a plan view showing an embodiment of the steel plate cooling device of the present invention. Figure 5 configuration
It is a top view showing an example whose composition differs from the present invention . This in Figure 6
Example by varying the dimensions to investigate the homogeneity of the water in the embodiments of the invention, an example of the examination of blown up height in embodiments of the present invention in FIG.
【００１３】図４の本発明の実施例は、上部用ヘッダー
にパスラインと直交するノズル管を複数突設したタイプ
であり、冷却水供給ヘッダー２が鋼板のパスラインＬと
平行に配設され、この冷却水供給ヘッダー２のパスライ
ン側からノズル管４が複数（この実施例では１０本）パ
スラインと直交するように水平に突設され、反パスライ
ン側に冷却水供給管３が複数（この実施例では３本）取
付けられている。ノズル管４のパスラインに位置する先
端部分４Ｂには、ノズル１がパスラインと直交する方向
に間隔をおいて複数配設されている。 The embodiment of the present invention shown in FIG. 4 is of a type in which a plurality of nozzle pipes orthogonal to a pass line are protruded from an upper header, and a cooling water supply header 2 is arranged in parallel with a steel plate pass line L. A plurality (ten in this embodiment) of nozzle pipes 4 are horizontally projected from the pass line side of the cooling water supply header 2 so as to be orthogonal to the pass line, and the plurality of cooling water supply pipes 3 are provided on the opposite side of the pass line. (Three in this embodiment). A plurality of nozzles 1 are arranged at an end portion 4B of the nozzle tube 4 located at the pass line at intervals in a direction orthogonal to the pass line.
【００１４】このような構成において、各ノズル管４の
基端流入部４Ａを冷却水供給ヘッダー２内に突出させ、
基部を冷却水供給ヘッダー２の管壁部に溶接で固定して
いる。また、冷却水供給管３は隣り合うノズル１間に配
置し、その先端流出部３Ａを冷却水供給ヘッダー２内に
突出させ、基部を冷却水供給ヘッダー２の管壁部に溶接
で固定している。In such a configuration, the proximal inflow portion 4A of each nozzle tube 4 is projected into the cooling water supply header 2,
The base is fixed to the pipe wall of the cooling water supply header 2 by welding. Further, the cooling water supply pipe 3 is arranged between the adjacent nozzles 1, the leading outflow portion 3A is projected into the cooling water supply header 2, and the base is fixed to the pipe wall of the cooling water supply header 2 by welding. I have.
【００１５】ここで、前述の（１）式（ｄ1 ＋ｄ3 ＜Ｄ
2 、ｄ1 は基端流入部４Ａとヘッダー２内壁面の距離）
を満たすように、即ちノズル管４の基端流入部４Ａと冷
却水供給管３の先端流出部３Ａとがラップするように、
基端流入部４Ａおよび先端流出部３Ａを突出させる。ま
た、前述の（２）式（ｄ1 ＞Ｄ1 ／２、Ｄ1 は基端流入
部４Ａの内径）・（３）式（ｄ3 ＞Ｄ3 ／２、Ｄ3 ：供
給管３の内径）を満たすように、即ち基端流入部４Ａお
よび先端流出部３Ａがそれぞれ冷却水供給ヘッダー２の
内壁面に接近し過ぎないようにする。Here, the above equation (1) (d 1 + d 3 <D
2 , d 1 is the distance between the base inflow section 4A and the inner wall surface of the header 2)
That is, so that the proximal inflow portion 4A of the nozzle pipe 4 and the distal outflow portion 3A of the cooling water supply pipe 3 wrap,
The proximal inflow portion 4A and the distal outflow portion 3A are projected. Further, the above-mentioned (2) (d 1> D 1/2 , D 1 is the inside diameter of the proximal inlet portion 4A) · (3) Equation (d 3> D 3/2 , D 3: the inner diameter of the feed pipe 3 ), That is, the proximal inflow portion 4A and the distal outflow portion 3A are not too close to the inner wall surface of the cooling water supply header 2, respectively.
【００１６】図６に、ｄ1 ＋ｄ3 を変化させた場合の水
量の均一性について調査した例を示す。この図６から明
らかなように、ｄ1 ＋ｄ3 ＝Ｄ2 およびｄ1 ＋ｄ3 ＞Ｄ
2 では水量がヘッダー長手方向に不均一となり、ｄ1 ＋
ｄ3 ＜Ｄ2 の場合に水量がヘッダー長手方向に均一とな
る。即ち、供給側とノズル流入側とをヘッダー内部でラ
ップさせることにより、冷却水の水量分布が最も均一で
安定する結果が得られるのがわかる。FIG. 6 shows an example in which the uniformity of the amount of water when d 1 + d 3 is changed is investigated. As is apparent from FIG. 6, d 1 + d 3 = D 2 and d 1 + d 3 > D
In the case of 2 , the amount of water becomes uneven in the longitudinal direction of the header, and d 1 +
When d 3 <D 2 , the amount of water becomes uniform in the header longitudinal direction. That is, it can be seen that by wrapping the supply side and the nozzle inflow side inside the header, the result that the distribution of cooling water is most uniform and stable can be obtained.
【００１７】また、図７(a) に示すような本発明の実施
例の冷却装置（複数の冷却水供給管３に供給ヘッダー７
から冷却水を供給している）を使用し、図７(b) の３種
類タイプについて吹き上げ高さを調査したところ、図７
(c) に示すように、ノズル１の基端流入部１Ａと冷却水
供給管３の先端流出部３Ａとをラップさせたタイプ
（ハ）がヘッダー長手方向に均一な吹き上げ高さを得る
ことができることがわかった。Further, supplied to the cooling device (plurality of cooling water supply pipe 3 of the embodiments of the present invention, as shown in FIG. 7 (a) Header 7
The cooling water was supplied from the above), and the blow-up height was investigated for the three types shown in FIG. 7 (b).
As shown in (c), the type (C) in which the base inflow portion 1A of the nozzle 1 and the tip outflow portion 3A of the cooling water supply pipe 3 are wrapped can obtain a uniform blow-up height in the longitudinal direction of the header. I knew I could do it.
【００１８】次に、図５の構成が本発明とは異なる例に
おいては、冷却水供給ヘッダー２が鋼板のパスラインと
直交する方向に配設され、この冷却水供給ヘッダー２の
圧延機側にノズル１が複数（この実施例では２０本）パ
スラインＬと平行に突設され、反圧延機側に冷却水供給
管３が取付けられている。Next, in an example in which the configuration of FIG. 5 is different from the present invention , a cooling water supply header 2 is disposed in a direction orthogonal to the pass line of the steel sheet, and the cooling water supply header 2 is provided on the rolling mill side. A plurality of nozzles 1 (20 in this embodiment) protrude in parallel with the pass line L, and a cooling water supply pipe 3 is attached to the non-rolling mill side.
【００１９】このような構成において、各ノズル１の基
端流入部１Ａを冷却水供給ヘッダー２内に突出させ、基
部を冷却水供給ヘッダー２の管壁部に溶接で固定してい
る。また、冷却水供給ヘッダー２は十分な長さとし、両
端を閉塞板６で閉塞し、一端部は最先端位置のノズル１
から端面までの距離Ｌ1 が十分な距離となるようにし、
さらに他端部に取付けられる冷却水供給管３と最後端の
ノズル１までの距離Ｌ2 が十分な距離となるようにす
る。この距離Ｌ1 、Ｌ2 を確保することにより、冷却水
供給ヘッダー２の内部圧力がほぼ均一となるようにす
る。In such a configuration, the base inflow portion 1A of each nozzle 1 is projected into the cooling water supply header 2 and the base is fixed to the pipe wall of the cooling water supply header 2 by welding. Further, the cooling water supply header 2 has a sufficient length, both ends are closed by closing plates 6, and one end is provided with the nozzle 1 at the foremost position.
Distance L 1 to the end face as a sufficient distance from,
Further the distance L 2 to the nozzle 1 of the cooling water supply pipe 3 and the rearmost end attached to the other end portion is made to be a sufficient distance. By securing the distances L 1 and L 2 , the internal pressure of the cooling water supply header 2 is made substantially uniform.
【００２０】各ノズル１の基端流入部１Ａの突出長さ
は、冷却水供給ヘッダー２内を流れる冷却水が直接流入
しないような長さとし、また前述の（２）式（ｄ1 ＞Ｄ
1 ／２、Ｄ1 ：ノズル１の内径）と同様に基端流入部１
Ａが冷却水供給ヘッダー２の内壁面に接近し過ぎないよ
うにする。冷却水供給管３と冷却水供給ヘッダー２との
接続はフランジ接続であり、距離Ｌ2 は近いと最後端の
ノズル１に直接冷却水が流入するため、適当な距離を確
保する。The protruding length of the base inflow portion 1A of each nozzle 1 is set so that the cooling water flowing in the cooling water supply header 2 does not directly flow in, and the above-mentioned equation (2) (d 1 > D)
1/2, D 1: inside diameter of the nozzle 1) as well as proximal inlet portion 1
A does not approach the inner wall surface of the cooling water supply header 2 too much. Connection with the cooling water supply pipe 3 and the cooling water supply header 2 is flange connection, the distance L 2 is a direct cooling water nozzles 1 of the last end is close to the inflow, to ensure appropriate distances.
【００２１】なお、以上は厚板圧延における鋼板冷却装
置に適用した例について説明したが、これに限らず、熱
間帯鋼（ホットストリップ）などの鋼板冷却装置にも本
発明を適用できることはいうまでもない。Although an example in which the present invention is applied to a steel plate cooling device in thick plate rolling has been described above, the present invention is not limited to this, and it can be said that the present invention can be applied to a steel plate cooling device such as a hot strip steel (hot strip). Not even.
【００２２】[0022]
【発明の効果】前述の通り、本発明は、冷却水供給管を
ノズル間に位置するように冷却水供給ヘッダーの長手方
向中間部に複数配設すると共に、前述の（１）〜（３）
式を満足するように、前記ノズルの基部をその基端流入
部が冷却水供給ヘッダー内に突出するように冷却水供給
ヘッダーの管壁部に取付け、かつ、前記冷却水供給管の
先端部をその先端流出部が冷却水供給ヘッダー内に突出
するように冷却水供給ヘッダーの管壁部に取付けるよう
にしたため、次のような効果を得ることができる。As described above, according to the present invention, the cooling water supply pipe is positioned between the nozzles so that the length of the cooling water supply header is longer.
In addition, a plurality of parts are arranged in the middle part, and the above-mentioned (1) to (3)
So that the base of the nozzle is
Cooling water supply so that the section protrudes into the cooling water supply header
Attached to the pipe wall of the header, and of the cooling water supply pipe
The tip part has a tip outlet part protruding into the cooling water supply header
To be installed on the pipe wall of the cooling water supply header
Because you can obtain the following effects.
【００２３】(1) 比較的簡単な構成で均一な水量分布を
得ることができ、冷却むらによる形状不良や機械試験値
不良を解消することができ、また安価な冷却装置を得る
ことができると共に、既存の冷却装置にも簡単に適用で
きる。(1) A uniform water amount distribution can be obtained with a relatively simple configuration, and a shape defect and a mechanical test value defect due to uneven cooling can be eliminated, and an inexpensive cooling device can be obtained. It can be easily applied to existing cooling devices.
【００２４】(2) 従来の緩衝部材がないため、部材を取
付ける労力を低減することができ、また大流量において
も使用可能で耐久性に優れた鋼板の冷却装置を得ること
ができ、長期間にわたって安定して均一な冷却水量分布
を得ることができる。(2) Since there is no conventional cushioning member, the labor for mounting the member can be reduced, and a cooling device for a steel plate which can be used even at a large flow rate and has excellent durability can be obtained. And a uniform cooling water amount distribution can be obtained stably over a wide range.
【図１】鋼板の冷却装置の縦断面図であり、(a) は本発
明であり、ノズル間に冷却水供給管を配設するタイプ、
(b) は構成が本発明とは異なる例であり、冷却水供給管
をノズルから離して配設するタイプを示す。Figure 1 is a longitudinal sectional view of the steel plate of the cooling device, (a) represents the onset
It is a clear type that arranges a cooling water supply pipe between nozzles,
(b) shows an example in which the configuration is different from that of the present invention, and shows a type in which the cooling water supply pipe is disposed apart from the nozzle.
【図２】本発明の鋼板の冷却装置の横断面図であり、
(a) はノズルと冷却水供給管が対向する場合、(b) はノ
ズルと冷却水供給管が交差配置となる場合を示す。FIG. 2 is a cross-sectional view of the steel sheet cooling device of the present invention;
(a) shows the case where the nozzle and the cooling water supply pipe face each other, and (b) shows the case where the nozzle and the cooling water supply pipe cross each other.
【図３】本発明の鋼板の冷却装置とこの装置による水量
分布を示す(a) は縦断面図、(b) はグラフである。3 (a) is a longitudinal sectional view and FIG. 3 (b) is a graph showing a cooling device for a steel sheet according to the present invention and a water distribution by the device.
【図４】本発明の鋼板の冷却装置の実施例を示す平面図
である。4 is a plan view showing the actual施例cooling device of steel sheet of the present invention.
【図５】構成が本発明とは異なる例であり、(a) は装置
全体の平面図、(b) は冷却水供給管の断面図、(c) はノ
ズルの断面図、(d) はヘッダー閉塞板の矢視図である。FIG. 5 is an example in which the configuration is different from the present invention . (A) is a plan view of the entire apparatus, (b) is a cross-sectional view of a cooling water supply pipe, (c) is a cross-sectional view of a nozzle, and (d) is a cross-sectional view of the nozzle. It is an arrow view of a header closing plate.
【図６】本発明の実施例において寸法を変化させて水量
の均一性を調査した例であり、(a) は装置の縦断面図、
(b) は装置の横断面図、(c) 〜(e) は水量分布を示すグ
ラフである。FIG. 6 shows an example of investigating the uniformity of the amount of water by changing the dimensions in the example of the present invention, wherein (a) is a longitudinal sectional view of the apparatus,
(b) is a cross-sectional view of the apparatus, and (c) to (e) are graphs showing water distribution.
【図７】本発明の実施例において吹き上げ高さを調査し
た例であり、(a) は装置の平面図、(b) は３種類のタイ
プを示す横断面図、(c) はタイプ（ハ）による吹き上げ
水柱を示す正面図である。7A and 7B are examples in which the blow-up height is investigated in the embodiment of the present invention, where FIG. 7A is a plan view of the apparatus, FIG. 7B is a cross-sectional view showing three types, and FIG. FIG. 6 is a front view showing a blow-up water column according to FIG.
【図８】従来一般の鋼板の冷却装置とその水量分布を示
す(a) は縦断面図、(b) はグラフである。8 (a) is a longitudinal sectional view and FIG. 8 (b) is a graph showing a conventional general steel plate cooling device and its water amount distribution.
【図９】従来の緩衝部材を設けた鋼板の冷却装置とその
水量分布を示す(a) は縦断面図、(b) は横断面図、(c)
はグラフである。9 (a) is a longitudinal sectional view, FIG. 9 (b) is a transverse sectional view, and FIG. 9 (c) shows a conventional steel plate cooling device provided with a buffer member and its water distribution.
Is a graph.
１…ノズル １Ａ…基端流入部 ２…冷却水供給ヘッダー ３…冷却水供給管 ３Ａ…先端流出部 ４…ノズル管 ４Ａ…基端流入部 ６…閉塞板 DESCRIPTION OF SYMBOLS 1 ... Nozzle 1A ... Base end inflow part 2 ... Cooling water supply header 3 ... Cooling water supply pipe 3A ... Tip outflow part 4 ... Nozzle tube 4A ... Base end inflow part 6 ... Closure plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原口 洋一 茨城県鹿嶋市大字光３番地 住友金属工 業株式会社鹿島製鉄所内 (56)参考文献 特開 平６−212279（ＪＰ，Ａ) 特開 昭50−19008（ＪＰ，Ａ) 実開 平３−92757（ＪＰ，Ｕ) 実開 平５−39709（ＪＰ，Ｕ) 実開 平１−135108（ＪＰ，Ｕ) 実開 昭62−50809（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21B 45/02 320 C21D 1/00 123 C21D 9/52 102 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoichi Haraguchi 3 Kaji-shi, Kashima-shi, Ibaraki Sumitomo Metal Industries, Ltd. Kashima Works (56) References JP-A-6-212279 (JP, A) JP-A Sho 50-19008 (JP, A) Japanese Utility Model 3-92757 (JP, U) Japanese Utility Model 5-39709 (JP, U) Japanese Utility Model 1-135108 (JP, U) Japanese Utility Model No. 62-50809 (JP, U.S.A.) U) (58) Field surveyed (Int. Cl. 7 , DB name) B21B 45/02 320 C21D 1/00 123 C21D 9/52 102
Claims (1)
冷却水を供給し、冷却水供給ヘッダーに設けた複数個の
ノズルから冷却水を噴射して鋼板の冷却を行う冷却装置
において、前記冷却水供給管を前記ノズル間に位置する
ように前記冷却水供給ヘッダーの長手方向中間部に複数
配設すると共に、下記の（１）〜（３）式を満足するよ
うに、前記ノズルの基部をその基端流入部が冷却水供給
ヘッダー内に突出するように冷却水供給ヘッダーの管壁
部に取付け、かつ、前記冷却水供給管の先端部をその先
端流出部が冷却水供給ヘッダー内に突出するように冷却
水供給ヘッダーの管壁部に取付けたことを特徴とする鋼
板の冷却装置。 ｄ1 ＋ｄ3 ＜Ｄ2 ……（１） ｄ1 ＞Ｄ1 ／２ ……（２） ｄ3 ＞Ｄ3 ／２ ……（３） ｄ1 ：ノズルの基部端面とヘッダーの内壁面までの距離 ｄ3 ：供給管の先端部端面とヘッダーの内壁面までの距
離 Ｄ1 ：ノズルの内径 Ｄ2 ：ヘッダーの内径 Ｄ3 ：供給管の内径1. A cooling device for supplying cooling water from a cooling water supply pipe to a cooling water supply header and injecting cooling water from a plurality of nozzles provided in the cooling water supply header to cool a steel plate. A plurality of water supply pipes are provided at a longitudinally intermediate portion of the cooling water supply header so as to be located between the nozzles, and a base of the nozzle is arranged so as to satisfy the following expressions (1) to (3). The cooling water supply header is attached to the pipe wall of the cooling water supply header such that the base inflow part projects into the cooling water supply header, and the tip outflow part of the cooling water supply pipe projects into the cooling water supply header. A cooling device for a steel plate, wherein the cooling device is mounted on a pipe wall of a cooling water supply header. d 1 + d 3 <D 2 ...... (1) d 1> D 1/2 ...... (2) d 3> D 3/2 ...... (3) d 1: up to the inner wall surface of the base end surface of the nozzle and header Distance d 3 : distance between the end face of the supply pipe tip and the inner wall surface of the header D 1 : inner diameter of nozzle D 2 : inner diameter of header D 3 : inner diameter of supply pipe
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05617697A JP3275760B2 (en) | 1997-03-11 | 1997-03-11 | Steel plate cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05617697A JP3275760B2 (en) | 1997-03-11 | 1997-03-11 | Steel plate cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10249428A JPH10249428A (en) | 1998-09-22 |
| JP3275760B2 true JP3275760B2 (en) | 2002-04-22 |
Family
ID=13019808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05617697A Expired - Fee Related JP3275760B2 (en) | 1997-03-11 | 1997-03-11 | Steel plate cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3275760B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316934A (en) * | 2013-06-24 | 2013-09-25 | 中冶赛迪工程技术股份有限公司 | Multi-damping upward-spraying laminar cooling device with separable cavities |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6076157B2 (en) * | 2013-03-18 | 2017-02-08 | 富士電子工業株式会社 | Quenching equipment cooling jacket |
| CN106001134B (en) * | 2016-05-10 | 2018-11-13 | 莱芜钢铁集团有限公司 | The cooling device of milling train and milling train |
| CN106734262A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of cooling device of milling train |
| JP6904370B2 (en) * | 2019-01-25 | 2021-07-14 | Ｊｆｅスチール株式会社 | Gas jet cooling device and cooling method |
-
1997
- 1997-03-11 JP JP05617697A patent/JP3275760B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316934A (en) * | 2013-06-24 | 2013-09-25 | 中冶赛迪工程技术股份有限公司 | Multi-damping upward-spraying laminar cooling device with separable cavities |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10249428A (en) | 1998-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5351050B2 (en) | Apparatus and method for cooling rollers used for rolling in a high turbulent environment | |
| JP3275760B2 (en) | Steel plate cooling system | |
| JP5878446B2 (en) | Nozzle header, cooling device, hot-rolled steel plate manufacturing apparatus, and hot-rolled steel plate manufacturing method | |
| JPH11172401A (en) | Cooling of strip and device therefor | |
| KR20120125987A (en) | Method for suppressing surface indentation flaw in element tube for seamless steel tube | |
| JPH11347629A (en) | Straightening and cooling device for high temperature steel plate and its straightening and cooling method | |
| JP2009220158A (en) | Apparatus and method for cooling steel | |
| JP2000001719A (en) | Device for cooling high temperature steel plate | |
| CN201186289Y (en) | Apparatus for cooling roller ring | |
| JP4933125B2 (en) | Shell and tube heat exchanger | |
| KR102629986B1 (en) | Secondary cooling device and secondary cooling method for continuous casting cast steel | |
| JP3284934B2 (en) | High-temperature metal plate cooling system | |
| JP2996013B2 (en) | Rolling mill | |
| JP5332772B2 (en) | Steel cooling device and cooling method | |
| JP2549694Y2 (en) | Top cooling device for hot rolled material | |
| JP2833636B2 (en) | Water cooling method and water cooling device for steel bars and wires | |
| JPS6229480Y2 (en) | ||
| KR20210021289A (en) | Temperature control device for partial cooling of parts | |
| JP3129634B2 (en) | Slit laminar cooling device | |
| JPH1157836A (en) | Method of and device for cooling steel plate | |
| JP3873437B2 (en) | Method for cooling hot-rolled steel sheet | |
| JPH08174031A (en) | Method for passing strip through hot run table of hot rolling line | |
| JPH06182425A (en) | Cooling device for high temperature steel material | |
| JPS63220956A (en) | Spray cooling device for cast slab | |
| JP3978160B2 (en) | Method and apparatus for cooling hot rolled steel sheet using flat spray nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |