JPH09122734A - Lamina header for strip cooling device - Google Patents
Lamina header for strip cooling deviceInfo
- Publication number
- JPH09122734A JPH09122734A JP27952595A JP27952595A JPH09122734A JP H09122734 A JPH09122734 A JP H09122734A JP 27952595 A JP27952595 A JP 27952595A JP 27952595 A JP27952595 A JP 27952595A JP H09122734 A JPH09122734 A JP H09122734A
- Authority
- JP
- Japan
- Prior art keywords
- header
- laminar
- laminar header
- lamina
- swash plate
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Nozzles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋼材冷却装置、特
にホットストリップ圧延設備のストリップ冷却装置にお
けるラミナーヘッダーに関するものである。TECHNICAL FIELD The present invention relates to a steel material cooling device, and more particularly to a laminar header in a strip cooling device for hot strip rolling equipment.
【０００２】[0002]
【従来の技術】図３において、ストリップ冷却装置のラ
ミナーヘッダー１は一端から冷却水が流入し、円形断面
を有する長尺パイプ上部にＵベンドを介して取り付けら
れている複数のラミナーノズル２からストリップ上へ注
水する。また、ラミナーヘッダーの他端はエンドカバー
３により閉鎖された構造となっている。当該ラミナーノ
ズル１本から注水される流量は、ラミナーヘッダー内の
圧力ヘッドとノズル長さに関するサイフォンヘッドで決
定される（数１）。2. Description of the Related Art Referring to FIG. 3, a laminar header 1 of a strip cooling device is provided with a plurality of laminar nozzles 2 to which cooling water flows from one end and which are attached to an upper portion of a long pipe having a circular cross section through U bends. Pour water upwards. The other end of the laminar header is closed by an end cover 3. The flow rate of water injected from one laminar nozzle is determined by the pressure head in the laminar header and the siphon head regarding the nozzle length (Equation 1).
【０００３】[0003]
【数１】 (Equation 1)
【０００４】サイフォンヘッドＨsはラミナーヘッダー
長さの関数であり、各ラミナーノズルの長さが同一であ
れば同一効果（一定）となる。一方、ラミナーヘッダー
長手方向の任意の各ラミナーノズル位置におけるラミナ
ーヘッダー内圧Ｈiはラミナーヘッダー管の管摩擦抵抗
による圧力損失Δｈ1iと流速損失ヘッドΔｈ2iの両エネ
ルギー損失を伴うので、ラミナーヘッダー入口の流入ヘ
ッドＨ0は先端へ行くほど低下する（数２）。The siphon head Hs is a function of the length of the laminar header, and the same effect (constant) is obtained if the length of each laminar nozzle is the same. On the other hand, the laminar header internal pressure Hi at each arbitrary laminar nozzle position in the longitudinal direction of the laminar header is accompanied by energy loss of both pressure loss Δh 1i and flow velocity loss head Δh 2i due to the pipe frictional resistance of the laminar header pipe, so the inflow of the laminar header inlet The head H 0 is lowered toward the tip (Equation 2).
【０００５】[0005]
【数２】 (Equation 2)
【０００６】管摩擦抵抗による圧力損失Δｈ1i、流速損
失ヘッドΔｈ2iは、ラミナーヘッダーの長さ及びラミナ
ーヘッダー管内流速ｖiのそれぞれ関数であり、数３と
なる。The pressure loss Δh 1i due to the pipe frictional resistance and the flow velocity loss head Δh 2i are functions of the length of the laminar header and the flow velocity v i inside the laminar header, respectively, and are given by the following equation 3.
【０００７】[0007]
【数３】 (Equation 3)
【０００８】ラミナーヘッダー管内流速ｖiはラミナー
ヘッダーの入口で最も速く、その先端へ行くほどラミナ
ーノズル個数が減るため、当該部位の断面を通過する流
量が減少し、ラミナーヘッダー管内流速ｖiは徐々にに
減速していく。従って、流速損失ヘッドΔｈ2iは、ラミ
ナーヘッダー管内流速Ｖiに比例しラミナーヘッダー先
端へ行くほど小さくなる。The flow velocity v i in the laminar header pipe is the fastest at the inlet of the laminar header, and the number of laminar nozzles decreases toward the tip of the laminar header, so that the flow amount passing through the cross section of the relevant portion decreases, and the flow velocity v i in the laminar header pipe gradually. Slow down to. Therefore, the flow velocity loss head Δh 2i is proportional to the flow velocity V i inside the laminar header and becomes smaller toward the tip of the laminar header.
【０００９】又、管摩擦抵抗による圧力損失Δｈ1iは、
ラミナーヘッダー管内流速ｖiが減少する一方Ｌiがラミ
ナーヘッダー先端へ行くほど大きくなるため増加する
（図４参照）。この現象による影響を小さくする対策と
して、特開昭５６−１９５６２号や実開平６−７１３２
７号がある。The pressure loss Δh 1i due to the pipe frictional resistance is
While the flow velocity v i in the laminar header decreases, L i increases as it goes to the tip of the laminar header (see FIG. 4). As measures for reducing the influence of this phenomenon, Japanese Patent Laid-Open No. 56-19562 and Japanese Utility Model Laid-Open No. 6-7132
There is No. 7.
【００１０】[0010]
【発明が解決しようとする課題】一般にホットストリッ
プ圧延設備のストリップ冷却設備における使用水量の範
囲では流速損失ヘッドΔｈ2iＭＡＸの方が管摩擦抵抗に
よる圧力損失Δｈ1iＭＡＸよりも大きいのでラミナーヘ
ッダーの内圧Ｈiは先端の方が大きくなる。その結果数
１よりラミナーヘッダーからの注水量ｑiは、ラミナー
ヘッダー入口部で少なく先端部で多くなる。これが従来
ラミナーヘッダー固有の長手方向流量分布が不均一にな
るという問題点である。Generally, in the range of the amount of water used in the strip cooling equipment of the hot strip rolling equipment, the flow velocity loss head Δh 2i MAX is larger than the pressure loss Δh 1i MAX due to the pipe friction resistance, so the internal pressure of the laminar header is increased. Hi is larger at the tip. As a result, from the number 1, the amount of injected water q i from the laminar header is small at the laminar header inlet and large at the tip. This is a problem that the flow rate distribution in the longitudinal direction peculiar to the conventional laminar header becomes non-uniform.
【００１１】ラミナーヘッダーの長手方向流量分布が不
均一になるとストリップの板幅方向の温度分布が不均一
になり、ホットストリップ成品の板幅方向材質不均一
や、ホットランテーブルでの走行安定性に弊害を及ぼし
ストリップの巻取形状への悪影響を与える要因となり問
題視されている。If the flow rate distribution in the longitudinal direction of the laminar header becomes non-uniform, the temperature distribution in the strip width direction becomes non-uniform, which adversely affects the material non-uniformity in the strip width direction of the hot strip product and the running stability on the hot run table. This is a factor that causes a negative influence on the winding shape of the strip and is regarded as a problem.
【００１２】これらの問題に対して、先に挙げた特開昭
５６−１９５６２号で提示されるようなラミナーヘッダ
ーの長手方向の２ヵ所から冷却水を分割流入させる方法
や、実開平６−７１３２７号で提示される二重管ラミナ
ーヘッダーを用いる方法が考案されているが、ラミナー
ヘッダーの応答特性への悪影響或いはメンテナンス性の
悪化等が懸念され、かつその実現のためには従来ラミナ
ーヘッダー本体及び冷却水配管系統を大幅に改造する必
要がありその費用面にも大きな障壁がある。従って、経
済的な方法でラミナーヘッダーの長手方向の流速分布を
均一化する技術が必要である（課題１）。In order to solve these problems, a method of dividing cooling water from two locations in the longitudinal direction of the laminar header as disclosed in Japanese Patent Laid-Open No. 56-19562 mentioned above, and a method of practical use 6-71327. The method of using the double-tube laminar header presented in No. 1 has been devised, but there is concern that the response characteristics of the laminar header may be adversely affected or maintainability may deteriorate, and in order to realize it, the conventional laminar header body and The cooling water piping system needs to be significantly modified, and there is a major barrier to cost. Therefore, there is a need for a technique for making the flow velocity distribution in the longitudinal direction of the laminar header uniform by an economical method (problem 1).
【００１３】また、長期間使用したラミナーヘッダー内
の底面にはダスト等が堆積するため、ラミナーヘッダー
は定期的に清掃する必要がある。従って、ラミナーヘッ
ダーのメンテナンス性を損なうような構造に改造するこ
とは回避しなければならなく、むしろ、その清掃作業の
負荷を軽減する必要がある（課題２）。Further, since dust and the like are accumulated on the bottom surface of the laminar header that has been used for a long period of time, it is necessary to clean the laminar header regularly. Therefore, it is necessary to avoid modifying the structure of the laminar header so as to impair the maintainability thereof, and rather to reduce the load of the cleaning work (Problem 2).
【００１４】[0014]
【課題を解決するための手段】（課題１）を解決するた
め、熱間圧延鋼材の冷却工程のストリップ冷却装置ラミ
ナーヘッダーにおいて、各ラミナーノズルからの注水量
を均一化できるラミナーヘッダー管内流速分布均一化斜
板を組み込んだ構造とする。又、ラミナーヘッダー内の
損失分布を均一化するためラミナーヘッダーの断面積が
ラミナーヘッダーの入口から先端方向へ徐々に縮少する
構造にする。更に、ラミナーヘッダーの断面が円形状で
あるため、該ラミナーヘッダー管内流速分布均一化斜板
の上面板を長楕円形状を有する構造とする。In order to solve (Problem 1), in a strip cooling device laminar header in a cooling process of hot-rolled steel material, a uniform flow velocity distribution in a laminar header pipe can be achieved in which the amount of water injected from each laminar nozzle can be made uniform. The structure will incorporate a swash plate. Further, in order to make the loss distribution in the laminar header uniform, the cross-sectional area of the laminar header is gradually reduced from the inlet of the laminar header to the tip direction. Further, since the laminar header has a circular cross section, the upper plate of the laminar header uniform flow velocity distribution swash plate has an oblong shape.
【００１５】（課題２）を解決するため、該ラミナーヘ
ッダー管内流速分布均一化斜板の固定部をラミナーヘッ
ダー先端部のエンドカバー部に設け、メンテナンス性の
向上を図り、かつ従来ラミナーヘッダーを改造する場合
にも経済的にそのラミナーヘッダー管内流速分布均一化
効果を実現することを可能とする。また、ラミナーヘッ
ダー内部の清掃作業負荷を軽減する目的で、該ラミナー
ヘッダー管内流速分布均一化斜板の中央および先端に装
入時の位置決め、使用時の振れ防止機能を兼ね、ヘッダ
ー内に堆積するダストも排除可能なスクレーパーを設け
た構造とする。In order to solve (Problem 2), a fixed portion of the swash plate for equalizing the flow velocity distribution in the laminar header pipe is provided in the end cover portion at the tip of the laminar header to improve the maintainability and modify the conventional laminar header. Even in the case of doing so, it is possible to economically realize the effect of equalizing the flow velocity distribution in the laminar header pipe. Also, for the purpose of reducing the work load for cleaning the inside of the laminar header, the laminar header has a uniform flow velocity distribution inside the swash plate. The structure is provided with a scraper that can also remove dust.
【００１６】基本的な考え方として、ラミナーヘッダー
長手方向に各ラミナーノズルの流量が不均一となること
を解決するためにラミナーノズル流量差が発生する支配
的な要因となっているラミナーヘッダー管内の損失分布
を均一化する。すなわち、ヘッダー内の損失分布に応じ
てラミナーヘッダー内の断面積を変化させ、流体の速度
圧Δｈ2iと管摩擦抵抗による圧力損失Δｈ1iとの和がラ
ミナーヘッダーの全長で等しくなるようにする。従っ
て、ラミナーヘッダーの流入口でラミナーヘッダー管内
の断面積が広く、先端へ行くほど断面積が狭くなりΔｈ
1i＋Δｈ2iがどの断面でも等しくなるような軌跡を有す
る構造の斜板をラミナーヘッダー管内に装入する（図
１）。As a basic idea, the loss in the laminar header pipe, which is a dominant factor causing the difference in laminar nozzle flow rate in order to solve the uneven flow rate of each laminar nozzle in the longitudinal direction of the laminar header. Make the distribution uniform. That is, the cross-sectional area in the laminar header is changed according to the loss distribution in the header so that the sum of the fluid velocity pressure Δh 2i and the pressure loss Δh 1i due to the pipe frictional resistance is equal over the entire length of the laminar header. Therefore, the cross-sectional area inside the laminar header pipe is wide at the inlet of the laminar header, and the cross-sectional area becomes narrower toward the tip.
Insert a swash plate with a structure with a trajectory such that 1i + Δh 2i is the same in any cross section into the laminar header pipe (Fig. 1).
【００１７】次にその具体的な方法を述べる。図１はラ
ミナーヘッダー管内流速分布均一化斜板を装着した時の
ラミナーヘッダー内を透視した図であり、ラミナーヘッ
ダー１は一端にエンドカバー３を有し長尺円形のパイプ
構造である。ラミナーノズル２は上部が１８０°曲がっ
た小径パイプ形状でラミナーヘッダー１の長手方向上部
に開けられた穴に複数取り付けられる（図５参照）。冷
却水はラミナーヘッダー１の図面右手側から流入し図面
左手方向へ流れ、各ラミナーノズル２から流出する。Next, the specific method will be described. FIG. 1 is a perspective view of the inside of the laminar header when a swash plate for equalizing the flow velocity distribution in the laminar header is attached. The laminar header 1 has an end cover 3 at one end and has a long circular pipe structure. The laminar nozzles 2 have a small-diameter pipe shape in which the upper portion is bent by 180 °, and a plurality of laminar nozzles 2 are attached to holes formed in the upper portion in the longitudinal direction of the laminar header 1 (see FIG. 5). The cooling water flows in from the right hand side of the laminar header 1 in the drawing, flows in the left hand direction of the drawing, and flows out from each laminar nozzle 2.
【００１８】図６のラミナーヘッダー管内流速分布均一
化斜板本体は、図１、図２に示す通り各断面がＴ字型で
長手方向に上面が斜めになった曲線形状をしている。上
面板４ａには、縦リブ４ｂが溶接され一体構造となって
いる。又、縦リブ４ｂの中央及び先端には堆積物掻き出
し用のスクレーパー４ｃが、その一端にはＬ型の固定座
４ｄが溶接され取り付けてある。As shown in FIGS. 1 and 2, the swash plate main body for uniformizing the flow velocity distribution in the laminar header pipe of FIG. 6 has a T-shaped cross section and a curved shape with the upper surface inclined in the longitudinal direction. Vertical ribs 4b are welded to the upper surface plate 4a to form an integral structure. A scraper 4c for scraping out deposits is attached to the center and tip of the vertical rib 4b, and an L-shaped fixing seat 4d is welded and attached to one end thereof.
【００１９】図７において、ラミナーヘッダー管内流速
分布均一化斜板本体側の固定座４ｄはラミナーヘッダー
のエンドカバー３に斜板固定ボルト５で締結され一体構
造となる。In FIG. 7, the fixed seat 4d on the side of the swash plate main body for uniformizing the flow velocity distribution in the laminar header pipe is fastened to the end cover 3 of the laminar header with the swash plate fixing bolt 5 to form an integral structure.
【００２０】ラミナーヘッダー管内流速分布均一化斜板
の装着方法は、ラミナーヘッダー１内へラミナーヘッダ
ー管内流速分布均一化斜板４装入し、図８に示すエンド
カバー３とラミナーヘッダー１のフランジ１ａとをフラ
ンジボルト６で締結固定すれば、図９のように一体構造
となる。The mounting method of the swash plate for equalizing the flow velocity distribution in the laminar header pipe is as follows: The swash plate 4 for equalizing the flow velocity distribution in the laminar header pipe is inserted into the laminar header 1, and the end cover 3 and the flange 1a of the laminar header 1 shown in FIG. When and are fastened and fixed with the flange bolts 6, an integrated structure is obtained as shown in FIG.
【００２１】[0021]
【作用】ラミナーヘッダー管内流速分布均一化斜板装入
後のラミナーヘッダー内の冷却水の流路断面積は、流入
側で広くエンドカバー端で狭くなっている。このラミナ
ーヘッダーの断面積の変化の割合が、各ラミナーノズル
位置のラミナーヘッダー内の管摩擦抵抗による圧力損失
Δｈ1iと流速損失ヘッドΔｈ2iの和の変化の割合と等し
くなるようにラミナーヘッダー管内流速分布均一化斜板
を図６の形状に形成すれば、ラミナーノズル部の内圧ヘ
ッドＨｉがラミナーヘッダー１の長手方向の各部位で等
しくなり、各ラミナーノズルの注水流が一定となりラミ
ナーヘッダー長手方向の流量分布の均一化が図ることが
できる。Operation: Uniform flow velocity distribution in laminar header pipe The flow passage cross-sectional area of the cooling water in the laminar header after charging the swash plate is wide on the inflow side and narrow on the end cover end. The rate of change in the cross-sectional area of the laminar header is equal to the rate of change in the sum of the pressure loss Δh 1i and the flow velocity loss head Δh 2i due to the pipe frictional resistance in the laminar nozzle at each laminar nozzle position. If the distribution uniformizing swash plate is formed in the shape shown in FIG. 6, the inner pressure heads Hi of the laminar nozzles become equal at each position in the longitudinal direction of the laminar header 1, and the water injection flow of each laminar nozzle becomes constant and the laminar header in the longitudinal direction. The flow rate distribution can be made uniform.
【００２２】また、ラミナーヘッダー入口圧力ヘッドＨ
0が２倍或いは１／２倍程度増減変化した場合でもラミ
ナーヘッダー１の長手方向の流量分布はほぼ同じ均一形
態となる。このことは操業ニーズ等によりラミナーヘッ
ダーの所要流入流量が変化しても、ラミナーヘッダー１
の長手方向の流量分布の均一化が保持できることを意味
している。Further, the laminar header inlet pressure head H
Even when 0 is increased or decreased by a factor of 2 or 1/2, the flow rate distribution in the longitudinal direction of the laminar header 1 becomes substantially the same. This means that even if the required inflow flow rate of the laminar header changes due to operational needs, etc.
It means that the uniformity of the flow rate distribution in the longitudinal direction can be maintained.
【００２３】また、ラミナーヘッダーをメンテナンスす
る際、ラミナーヘッダーからラミナーヘッダー管内流速
分布均一化斜板を引き抜くと同時にその先端にあるスク
レーパー４ｃがラミナーヘッダー内底面の堆積物を自然
に掻き出すことにより、ヘッダー内部の清掃作業の省力
化を図ることができる。When the laminar header is maintained, the swash plate for equalizing the flow velocity distribution in the laminar header pipe is pulled out from the laminar header, and at the same time, the scraper 4c at the tip of the swash plate naturally scrapes off the deposits on the inner bottom surface of the laminar header. Labor saving of internal cleaning work can be achieved.
【００２４】[0024]
【発明の効果】本発明のラミナーヘッダーと従来のラミ
ナーヘッダーとのラミナーヘッダー長手方向流量分布を
図１０に示す。従来ラミナーヘッダーの流量分布はバラ
ツキが大きい、これに対し本発明ラミナーヘッダーの流
量分布のバラツキはラミナーヘッダー入口から先端部の
全長において±２．５％以内の範囲で均一化が図られて
いる。ここで±２．５％のバラツキは実験に用いたラミ
ナーヘッダー管内流速分布均一化斜板の形状を製作コス
ト削減の観点で直線近似して製作したため発生したもの
で、製作コストを無視すれば流量分布のバラツキを理論
上ゼロにすることは可能である。FIG. 10 shows the flow rate distribution in the longitudinal direction of the laminar header of the present invention and the conventional laminar header. The flow rate distribution of the conventional laminar header has a large variation, whereas the flow rate distribution of the laminar header of the present invention is made uniform within ± 2.5% in the entire length from the laminar header inlet to the tip. Here, the variation of ± 2.5% is caused by the linear approximation of the swash plate shape of the flow velocity distribution in the laminar header pipe used in the experiment in order to reduce the manufacturing cost. It is theoretically possible to make the distribution variation zero.
【００２５】また、ラミナーヘッダーの入口流量が変化
してもラミナーヘッダー長手方向の流量分布差は変化せ
ず、所要流量の５０％及び２００％の流量を流した場合
でもラミナーヘッダー長手方向流量分布差は所要流量同
様±２．５％以内範囲で流量分布の均一化が保持される
（図１１、図１２参照）。Even if the inlet flow rate of the laminar header changes, the flow rate distribution difference in the longitudinal direction of the laminar header does not change. Even when a flow rate of 50% or 200% of the required flow rate is applied, the flow rate distribution difference in the laminar header longitudinal direction changes. As with the required flow rate, the uniform flow rate distribution is maintained within ± 2.5% (see FIGS. 11 and 12).
【００２６】このことは例えば数１においてサイフォン
ヘッドＨsを可変させて流量分布の均一化図ることを指
向した場合、所要流量に対しては均一化の目的を計算通
り達成できるが、所要流量で設定した可変ラミナーノズ
ルに所要流量以外の流量が流入した場合図１３、図１４
に示す通り流量分布は不均一になる欠点に対して、本発
明がラミナーヘッダーの入口流量の変動に対しても優れ
た自由度を有している。For example, when the siphon head Hs is varied in Equation 1 to aim at uniformization of the flow rate distribution, the desired flow rate can be achieved by calculation, but the required flow rate is set. When a flow rate other than the required flow rate flows into the variable laminar nozzle shown in FIG.
The present invention has an excellent degree of freedom with respect to fluctuations in the inlet flow rate of the laminar header, as opposed to the drawback that the flow rate distribution becomes nonuniform as shown in FIG.
【００２７】又、従来ラミナーヘッダーの流量分布均一
化方法として、ラミナーヘッダーの入口部と先端部とで
設置レベル差を付与するという位置ヘッドを利用した考
案も考えられるが、ラミナーヘッダーの圧力損失曲線の
変化に対して、直線近似でヘッド差を与えるため流量分
布均一化の精度が悪く、かつラミナーヘッダーの応答性
へも悪影響与えてしまう欠点がある（図１５参照）。Further, as a conventional method of equalizing the flow rate distribution of the laminar header, it is conceivable to use a position head in which an installation level difference is provided between the inlet and the tip of the laminar header. Since the head difference is given by a linear approximation with respect to the change of, the accuracy of uniforming the flow rate distribution is poor and the responsiveness of the laminar header is also adversely affected (see FIG. 15).
【００２８】以上により、本発明品はストリップのの幅
方向流量分布の均一化を図ることができストリップの幅
方向の材質均一化と、幅方向の温度差も無くなりホット
ランテーブルでのストリップ走行安定性の向上に大きく
寄与することができた。As described above, according to the present invention, the flow rate distribution in the width direction of the strip can be made uniform, the material in the width direction of the strip can be made uniform, and the temperature difference in the width direction can be eliminated, and the strip running stability on the hot run table can be eliminated. It was able to contribute greatly to the improvement of.
【００２９】又、既存ラミナーヘッダーの外観形状を変
更することなく、エンドカバーの一部を加工するだけで
簡単に斜板を組み込むことが可能な構造であり、経済的
な費用で改造の実現が可能となった。Moreover, the structure is such that the swash plate can be easily incorporated by simply processing a part of the end cover without changing the external shape of the existing laminar header, and the modification can be realized at an economical cost. It has become possible.
【００３０】更に、斜板先端のスクレーパーにより、ヘ
ッダー内清掃時の作業負荷も軽減する効果を発揮する。Furthermore, the scraper at the tip of the swash plate exerts the effect of reducing the work load when cleaning the inside of the header.
【図１】は、ラミナーヘッダー管内流速分布均一化斜板
装着時のラミナーヘッダー内透視図。FIG. 1 is a perspective view of the inside of a laminar header when a swash plate with a uniform flow velocity distribution inside the laminar header is attached.
【図２】は、ラミナーヘッダー管内流速分布均一化斜板
装着時のラミナーヘッダー内断面図。FIG. 2 is a sectional view of the inside of the laminar header when the swash plate for equalizing the flow velocity distribution in the laminar header is attached.
【図３】は、ラミナーヘッダーによるストリップ冷却状
態図。FIG. 3 is a strip cooling state diagram by a laminar header.
【図４】は、既存ラミナーヘッダーの圧力損失を示す概
念図。FIG. 4 is a conceptual diagram showing pressure loss of an existing laminar header.
【図５】は、ラミナーヘッダーの外観図。FIG. 5 is an external view of a laminar header.
【図６】は、ラミナーヘッダー管内流速分布均一化斜板
の単体図。FIG. 6 is a single view of a swash plate for uniforming the flow velocity distribution in the laminar header pipe.
【図７】は、ラミナーヘッダーのエンドカバー部詳細
図。FIG. 7 is a detailed view of an end cover portion of the laminar header.
【図８】は、ラミナーヘッダーのエンドカバー部の外観
図。FIG. 8 is an external view of an end cover portion of a laminar header.
【図９】は、ラミナーヘッダー管内流速分布均一化斜板
装着時のラミナーヘッダー内透視図。FIG. 9 is a perspective view of the inside of the laminar header when the swash plate for equalizing the flow velocity distribution in the laminar header is attached.
【図１０】は、ラミナーヘッダーの長手方向流量分布の
状態を示す図。FIG. 10 is a view showing a state of a longitudinal flow rate distribution of the laminar header.
【図１１】は、本発明品の入口流量変化に対する管内流
速分布の理論値を示す図。FIG. 11 is a diagram showing theoretical values of a flow velocity distribution in a pipe with respect to a change in an inlet flow rate of the product of the present invention.
【図１２】は、本発明品の入口流量変化に対する管内流
速分布の実験値を示す図。FIG. 12 is a diagram showing an experimental value of a flow velocity distribution in a pipe with respect to a change in an inlet flow rate of the product of the present invention.
【図１３】は、サイフォンヘッド可変方式の入口流量変
化に対する管内流速分布の理論値を示す図。FIG. 13 is a diagram showing a theoretical value of a flow velocity distribution in a pipe with respect to a change in an inlet flow rate of a siphon head variable system.
【図１４】は、サイフォンヘッド可変方式の入口流量変
化に対する管内流速分布の実験値を示す図。FIG. 14 is a diagram showing an experimental value of a flow velocity distribution in a pipe with respect to a change in an inlet flow rate of a siphon head variable system.
【図１５】は、位置ヘッド可変方案の説明図。FIG. 15 is an explanatory diagram of a position head variable plan.
１：ラミナーヘッダー、 １ａ：ラミナーヘッダー側フ
ランジ、 ２：ラミナーノズル、 ３：エンドカバー、
４：ラミナーヘッダー管内流速分布均一化斜板、 ４
ａ：上面板、 ４ｂ：縦リブ、 ４ｃ：スクレーパー、
４ｄ：固定座、 ５：斜板固定ボルト、 ６：フラン
ジボルト。1: Laminar header, 1a: Laminar header side flange, 2: Laminar nozzle, 3: End cover,
4: Swash plate for uniform flow velocity distribution in laminar header, 4
a: top plate, 4b: vertical ribs, 4c: scraper,
4d: fixed seat, 5: swash plate fixing bolt, 6: flange bolt.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 永末 信靱 千葉県君津市人見1036の１ 太平工業株式 会社君津支店内 (72)発明者 鈴木 義高 千葉県君津市人見1036の１ 太平工業株式 会社君津支店内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobutsugu Nagasue, Inventor 1036-1 Hitomi, Kimitsu, Chiba Prefecture, Taihei Kogyo Co., Ltd. (72) Inventor, Yoshitaka Suzuki, 136 1013 Hitomi, Kimitsu, Chiba Taihei Kogyo Co., Ltd. Company Kimitsu Branch
Claims (5)
装置ラミナーヘッダーにおいて、各ラミナーノズルから
の注水量を均一にすることを可能にするラミナーヘッダ
ー管内流速分布均一化斜板を組み込んだことを特徴とす
るストリップ冷却装置のラミナーヘッダー。1. A strip cooling device laminar header in a cooling process of hot rolled steel products, wherein a swash plate for equalizing a flow velocity distribution in a laminar header pipe is provided, which makes it possible to make the amount of water injected from each laminar nozzle uniform. Laminar header of the characteristic strip cooling device.
ミナーヘッダー流入口側から先端側のラミナーヘッダー
の長手方向に徐々に減少変化する形状としたことを特徴
とするストリップ冷却装置のラミナーヘッダー。2. A laminar header for a strip cooling device, characterized in that a cross-sectional area of the laminar header according to claim 1 is gradually changed from a laminar header inflow side to a longitudinal direction of the laminar header on the leading end side.
均一化斜板の本体形状が長楕円形状を有することを特徴
とするストリップ冷却装置のラミナーヘッダー。3. A laminar header for a strip cooling device, wherein the swash plate for uniformizing the flow velocity distribution in the laminar header pipe according to claim 1 has an oblong shape.
ラミナーヘッダー管内流速分布均一化斜板の固定部分を
ラミナーヘッダー先端のエンドカバーに設け、取付・取
外しが容易なボルトナット締結方式とし、斜板本体のラ
ミナーヘッダー内での位置決め、及び確実に、かつ固定
を容易にしたことを特徴とするストリップ冷却装置のラ
ミナーヘッダー。4. The laminar header according to claim 1, wherein a fixed portion of the laminar header uniform flow velocity distribution swash plate is provided on an end cover at the tip of the laminar header, and a swash plate with a bolt and nut fastening system is provided for easy mounting and removal. A laminar header for a strip cooling device, characterized in that the main body is easily positioned and firmly and securely fixed in the laminar header.
布均一化斜板の中央及び先端に装入時の位置決め、使用
時の振れ止め、並びにラミナーヘッダー内に堆積したダ
スト等も排除可能なスクレーパーを複数取り付けたこと
を特徴とするストリップ冷却装置のラミナーヘッダー。5. A scraper capable of positioning at the center and tip of the swash plate for uniformizing the flow velocity distribution in the laminar header pipe at the time of charging, steadying at the time of use, and eliminating dust accumulated in the laminar header as well. A laminar header for a strip cooling device, which is equipped with a plurality of strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27952595A JP3397278B2 (en) | 1995-10-27 | 1995-10-27 | Laminar header for strip cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27952595A JP3397278B2 (en) | 1995-10-27 | 1995-10-27 | Laminar header for strip cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09122734A true JPH09122734A (en) | 1997-05-13 |
| JP3397278B2 JP3397278B2 (en) | 2003-04-14 |
Family
ID=17612241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27952595A Expired - Fee Related JP3397278B2 (en) | 1995-10-27 | 1995-10-27 | Laminar header for strip cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3397278B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436218A (en) * | 2014-08-29 | 2016-03-30 | 宝钢特钢有限公司 | Cooling device capable of forming slant high-density spraying jet |
| CN112191698A (en) * | 2020-09-29 | 2021-01-08 | 太原科技大学 | High-pressure water descaling device for hot rolling H-shaped steel |
| JP2021519696A (en) * | 2018-04-13 | 2021-08-12 | エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Cooling device and method for operating this cooling device |
-
1995
- 1995-10-27 JP JP27952595A patent/JP3397278B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436218A (en) * | 2014-08-29 | 2016-03-30 | 宝钢特钢有限公司 | Cooling device capable of forming slant high-density spraying jet |
| JP2021519696A (en) * | 2018-04-13 | 2021-08-12 | エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Cooling device and method for operating this cooling device |
| CN112191698A (en) * | 2020-09-29 | 2021-01-08 | 太原科技大学 | High-pressure water descaling device for hot rolling H-shaped steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3397278B2 (en) | 2003-04-14 |
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