JPS582250B2 - Cooling water supply method in continuous annealing equipment - Google Patents
Cooling water supply method in continuous annealing equipmentInfo
- Publication number
- JPS582250B2 JPS582250B2 JP51138410A JP13841076A JPS582250B2 JP S582250 B2 JPS582250 B2 JP S582250B2 JP 51138410 A JP51138410 A JP 51138410A JP 13841076 A JP13841076 A JP 13841076A JP S582250 B2 JPS582250 B2 JP S582250B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- water
- heat treatment
- cooling water
- gas
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【発明の詳細な説明】
この発明は連続焼鈍設備における冷却水の供給方法に関
し、特に設備内で発生する熱量を有効に活用するための
冷却水系の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supplying cooling water in continuous annealing equipment, and more particularly to improvement of a cooling water system for effectively utilizing the amount of heat generated within the equipment.
冷延鋼板を製造するための連続焼鈍設備はその処理の高
速化および省力化が可能なことから広く普及しつつある
。Continuous annealing equipment for manufacturing cold-rolled steel sheets is becoming widespread because it allows for faster processing and labor savings.
一般的な連続焼鈍設備のライン構成としては大別して２
種類のものが知られており、その第１のものは、再結晶
焼鈍工程、冷却工程、巻取り工程を順に並べたもので上
記冷却工程後に必要に応じて亜鉛やアルミニウム等の鍍
金工程を含ませるもの、また第２のものは、再結晶焼鈍
工程、一次冷却工程、過時効処理工程、最終冷却工程、
巻取り工程を順に並べたもので上記一次冷却工程または
最終工程後に必要に応じて同様な鍍金工程を含ませるも
のであり、これらはいずれもその前処理工程として酸洗
工程等の洗浄工程を前段に備え、また冷却後の巻取り工
程前において調質圧延工程やサイドトリミング工程を精
整処理工程として連続配備している。The line configuration of general continuous annealing equipment can be roughly divided into two types:
There are several types of methods known, the first of which is a recrystallization annealing process, a cooling process, and a winding process arranged in this order, and includes a plating process with zinc, aluminum, etc. after the cooling process as necessary. The second one is a recrystallization annealing process, a primary cooling process, an overaging process, a final cooling process,
The winding process is arranged in order, and a similar plating process is included as necessary after the above primary cooling process or the final process, and both of these processes require a cleaning process such as an pickling process as a pretreatment process. In preparation for this, a skin pass rolling process and a side trimming process are continuously performed as finishing processes before the winding process after cooling.
しかしながらこのような連続焼鈍ラインでは、直火又は
間接加熱方式を問わず、他の例えばバッチ方式の焼鈍ラ
インに比べて単位生産量当りの熱エネルギ消費量が多い
という欠点を備えている。However, such continuous annealing lines, regardless of direct heating or indirect heating, have the disadvantage that they consume more thermal energy per unit production than other, for example, batch-type annealing lines.
この発明はかかる状況に鑑みてなされたもので、加熱さ
れたストリップが放出する熱量を吸収した冷却用炉内雰
囲気ガスからさらに熱量を吸収した該ガスを冷却するた
めの冷媒水、この冷媒水を冷却した後の冷却水など、熱
量を吸収して温水となった用水をラインの冷却系内はも
ちろんライン内外の温水源に利用するようにして、熱エ
ネルギーの有効利用を計ろうとするものである。This invention was made in view of the above situation, and includes refrigerant water for cooling the cooling furnace atmospheric gas that has absorbed the heat released by the heated strip and the gas that has further absorbed the heat. This is an attempt to effectively utilize thermal energy by using water that has become hot by absorbing heat, such as cooling water after cooling, to be used not only in the cooling system of the line but also as a hot water source inside and outside the line. .
この発明を実施例図面と共に詳述すれば以下の通りであ
る。The present invention will be described in detail below along with the drawings of the embodiments.
第１図および第２図はこの発明の一実施例に係る連続焼
鈍設備のライン構成および冷却水系統の構成を示す説明
図で、第１図の連続焼鈍ラインは複数のアンコイラ１ａ
、１ｂのいずれか一方より巻きほぐされたストリップＳ
を、シャー２−１および溶接機２−２によって他方のア
ンコイラからのストリップと接続しつつ連続的にライン
へ通板するようにしてなり、溶接機の次に順に湯洗槽３
、アルカリ洗浄槽４、およびスプレー湯洗槽５を配置し
てなる前処理表面洗浄装置が配置され、次いでドライヤ
ー６−１を経て入側ルーパー７から炉内へ至っている。1 and 2 are explanatory views showing the line configuration and cooling water system configuration of continuous annealing equipment according to an embodiment of the present invention, and the continuous annealing line in FIG. 1 includes a plurality of uncoilers 1a.
, 1b, the strip S is unwound from either side of
is connected to the strip from the other uncoiler by shear 2-1 and welding machine 2-2, and is continuously passed through the line, and then the welding machine and then the hot water washing tank 3.
, an alkali cleaning tank 4, and a hot water spray cleaning tank 5 are disposed, and then the inlet looper 7 passes through the dryer 6-1 into the furnace.
炉構成は先ず再結晶焼鈍のための加熱帯８および均熱帯
９、炉内雰囲気ガスによるガス冷却帯１０からなり、次
いで水焼入れスプレー１１および水冷タンク１２を経た
後ストリップは酸洗槽１３、中和槽１４、湯洗槽１５お
よびドライヤー６−２で表面洗浄されて再び炉に入り、
過時効処理のための再加熱帯１６、均熱帯１７、炉内雰
囲気ガスによるガス冷却帯１８を経て出側ルーパー１９
を介し水冷装置２０および乾燥装置２１に至っている。The furnace configuration consists of a heating zone 8 and a soaking zone 9 for recrystallization annealing, and a gas cooling zone 10 using atmospheric gas in the furnace.Then, after passing through a water quenching spray 11 and a water cooling tank 12, the strip is passed through a pickling tank 13 and a soaking zone 9. The surface is cleaned in the Japanese tank 14, the hot water washing tank 15 and the dryer 6-2, and then enters the furnace again.
The exit looper 19 passes through a reheating zone 16 for overaging treatment, a soaking zone 17, and a gas cooling zone 18 using the furnace atmosphere gas.
It reaches a water cooling device 20 and a drying device 21 via.
乾燥装置２１を出た後、ストリップＳは調質圧延機２２
、トリム巾変更時のトリマーセット機用のノツチャー２
３、サイドトリマー２４、オイラー２５、出側シャー２
６を順に経て出側巻取リール２７に巻取られるようにラ
イン構成されている。After leaving the drying device 21, the strip S passes through a temper rolling mill 22.
, Notcher 2 for trimmer set machine when changing trim width
3. Side trimmer 24, oiler 25, exit shear 2
6 and then wound onto the output take-up reel 27.
尚、図中２８は焼鈍炉の廃ガスダクトであり、該ダクト
内には廃熱回収用の水管２９が配置されると共にダクト
先方はファン３０を介して煙突３１に至っている。In the drawing, reference numeral 28 indicates a waste gas duct of the annealing furnace. A water pipe 29 for waste heat recovery is disposed inside the duct, and the duct reaches a chimney 31 via a fan 30.
このラインの冷却水の供給系統は第２図に示す通りであ
って、吸収冷凍機３３の蒸発器３８によって供給新水３
２を例えば５℃程度に冷却して冷水とし、この冷水を水
焼入れスプレー１１および水冷装置２０へ供給し、これ
らからの冷却使用後の余水によって冷凍機３３の凝縮機
と吸収器３９の冷却を行ない、さらにその冷却余水を第
１熱交換器３４に通じてガス冷却帯１８で使用する炉内
雰囲気ガスの冷却を行ない、第１熱交換器３４を出た温
水は温水タンク３６ａを介してその一部を酸洗槽１３へ
送ると共に第２熱交換器３５へ送ってガス冷却帯１０で
使用する炉内雰囲気ガスの冷却を行ない、第２熱交換器
３５を出た後の温水は別の温水タンク３６ｂに溜めて温
水源とし、ここから湯洗槽３、アルカリ洗浄槽１４、ス
プレー湯洗槽５、中和槽１４、湯洗槽１５さらにはライ
ン外に各々配分すると共に、一部を廃ガスダクト２８内
の水管２９に通じてさらに高温の温水又は蒸気としてド
ライヤー６−１、６−２および乾燥装置２１の熱源に用
いると同時に冷凍機３３の再生器３７の熱源に用いる。The cooling water supply system for this line is as shown in FIG.
2 is cooled to, for example, about 5° C. to make cold water, and this cold water is supplied to the water quenching spray 11 and the water cooling device 20, and the remaining water from these after cooling is used to cool the condenser of the refrigerator 33 and the absorber 39. Further, the cooling surplus water is passed through the first heat exchanger 34 to cool the furnace atmosphere gas used in the gas cooling zone 18, and the hot water exiting the first heat exchanger 34 is passed through the hot water tank 36a. A part of it is sent to the pickling tank 13 and also to the second heat exchanger 35 to cool the furnace atmosphere gas used in the gas cooling zone 10. After leaving the second heat exchanger 35, the hot water is It is stored in another hot water tank 36b as a hot water source, and distributed from there to the hot water washing tank 3, the alkaline washing tank 14, the spray hot water washing tank 5, the neutralization tank 14, the hot water washing tank 15, and to the outside of the line. The remaining water is passed through the water pipe 29 in the waste gas duct 28 and used as high-temperature hot water or steam as a heat source for the dryers 6-1, 6-2 and the drying device 21, and at the same time as a heat source for the regenerator 37 of the refrigerator 33.
上記実施例のように連続焼鈍ラインの過時効処理前に水
焼入れを行なう場合、ガス冷却用の雰囲気ガスの冷却用
の水または水焼入れ用冷却水の冷却に冷凍機を用いる必
要は必ずしもないが、冷却水温度は、ストリップの安定
冷却による形状矯正および均一酸化膜の生成、あるいは
冷却むらによるスパツター状の酸化膜の発生に大きく関
係し、なるべく低温とすることが好ましいので冷凍機に
より充分冷却された冷水を用いている。When water quenching is performed before overaging treatment of a continuous annealing line as in the above example, it is not necessarily necessary to use a refrigerator to cool the water for cooling the atmospheric gas for gas cooling or the cooling water for water quenching. The temperature of the cooling water is closely related to shape correction and the formation of a uniform oxide film due to stable cooling of the strip, or to the formation of a spatter-like oxide film due to uneven cooling.It is preferable to keep the temperature as low as possible, so the cooling water temperature should be sufficiently cooled by a refrigerator. Use cold water.
また冷却能率や電力効率の点で上記冷凍機は圧縮冷凍機
を用いるよりも吸収冷凍機を用いるほうが好ましいのは
述べるまでもなく、この場合冷凍機の冷却のための冷却
水をそのまま炉内雰囲気ガスの冷却に活用できるもので
ある。It goes without saying that in terms of cooling efficiency and power efficiency, it is preferable to use an absorption refrigerator rather than a compression refrigerator. This can be used to cool gas.
また調質圧延前の水冷装置２０などによる冷却は調圧後
の時効の発生を防止するためにその冷却水温を３０℃以
下、高くとも４０℃以下とする必要があり、しかもこれ
を水冷で行なう場合は、直後のプライドルロール等での
スリップや、ドライ調圧をする際の錆などの発生を防止
するために、水冷後に乾燥装置２１により乾燥するので
、上記水冷は低温の冷水で行なって乾燥時の加熱による
調圧後の時効現象の発生の防止を行なうのが好ましい。In addition, in order to prevent the occurrence of aging after pressure adjustment, cooling by water cooling device 20 or the like before temper rolling requires that the temperature of the cooling water be 30° C. or less, or at most 40° C. or less, and this is done by water cooling. In this case, in order to prevent slips on the pridle rolls, etc. immediately after, and the occurrence of rust during dry pressure adjustment, the drying equipment 21 is used after water cooling, so the above water cooling is performed with low temperature cold water and drying is performed. It is preferable to prevent the occurrence of aging phenomenon after pressure adjustment due to heating.
さらに水焼入れスプレー１１による急冷で過時効処理前
の好ましい高速の急冷速度、例えば５０℃／Ｓｅｃ以上
の急冷速度が得られる場合、均熱帯９の後のガス冷却帯
１０は高張力冷延鋼板を製造する場合には不要であり、
また一方深絞り用冷延鋼板を求める場合は５００℃以上
の温度に徐冷してから水焼入れすべきで、特にｎ値や伸
びを要求される場合は５００〜６００℃の間に調整冷却
すべきであって、第２図の第２熱交換機３５ではこのた
めに冷却水を中〜高温水化している。Furthermore, if a preferable high-speed cooling rate before overaging treatment is achieved by rapid cooling with water quenching spray 11, for example, a rapid cooling rate of 50°C/Sec or more, the gas cooling zone 10 after the soaking zone 9 is a high-tensile cold-rolled steel sheet. It is not necessary when manufacturing,
On the other hand, if cold-rolled steel sheets for deep drawing are required, it should be slowly cooled to a temperature of 500°C or higher and then water quenched, and if particularly high n-value and elongation are required, cooling should be adjusted between 500 and 600°C. For this purpose, the second heat exchanger 35 in FIG. 2 converts the cooling water into medium- to high-temperature water.
過時効処理工程後のガス冷却帯１８での冷却は徐冷しつ
つ冷却するのが良いが、特に深絞り性を要求される場合
には３００℃程度までの間を徐冷してくるのが好ましく
、同時にテンパーカラー等酸化膜の発生を効果的に防ぐ
には１００℃内外、好ましくは８０℃以下まで徐冷した
後に水冷装置２０へ導入するのが望ましい。It is preferable to slowly cool the material in the gas cooling zone 18 after the overaging process, but if deep drawability is particularly required, it is recommended to slowly cool the material to about 300°C. Preferably, at the same time, in order to effectively prevent the formation of oxide films such as temper color, it is desirable to introduce the material into the water cooling device 20 after slowly cooling it to around 100° C., preferably to 80° C. or less.
この発明においては、上述した冷却用炉内雰囲気ガスの
冷却に用いた水を循環使用しつつ同時に使用後の温水、
好ましくは７０〜９０℃となった温水を炉の入側のアル
カリ洗浄からの前後の湯洗、さらには水焼入れ後の酸洗
やその後の中和や湯洗のための用水としてそのままある
いは蒸気で補的的に加熱して使用する。In this invention, while the water used for cooling the above-mentioned cooling furnace atmosphere gas is circulated and used, at the same time, the hot water after use is
Preferably, hot water at a temperature of 70 to 90°C is used as water for hot water washing before and after alkaline washing on the inlet side of the furnace, as well as for pickling after water quenching and subsequent neutralization and hot water washing, either as it is or with steam. Use supplementary heat.
また上記の温水の一部を炉の廃ガスダクト中の水管２９
に通じて廃ガスの熱を回収しつつ加熱し、これをドライ
ヤー６−１，６−２、乾燥装置２１および冷凍機の再生
器用の熱源に用いる。In addition, some of the above hot water is supplied to the water pipe 29 in the waste gas duct of the furnace.
The heat of the waste gas is recovered and heated, and used as a heat source for the dryers 6-1, 6-2, the drying device 21, and the regenerator of the refrigerator.
さらにまたこの発明は過時効処理前における冷却を水焼
入れによらず炉内雰囲気ガスだけで行なう連続焼鈍ライ
ンにも適用可能であって、この場合のガス冷却での冷却
ガスの冷却も過時効処理帯を短かくするために例えば５
０℃／Ｓｅｃ以上の急冷速度が得られるように冷凍機で
冷却した冷水で行なうのが望ましい。Furthermore, the present invention can be applied to a continuous annealing line in which cooling before overaging treatment is performed using only furnace atmospheric gas without water quenching; For example, 5 to shorten the obi.
It is desirable to use cold water cooled by a refrigerator so as to obtain a rapid cooling rate of 0° C./Sec or more.
なおまた調質圧延前の冷却を水冷によらずに炉内雰囲気
ガスで行なってテンパーカラーの発生を防ぐ場合は、前
述した調圧前温度を確保するためにこのガス冷却帯の後
段よりの冷却ガスの冷却を冷凍機による冷水で行なうこ
とが望ましい。Furthermore, if the cooling before temper rolling is performed using atmospheric gas in the furnace instead of water cooling to prevent the occurrence of temper color, cooling from the latter stage of this gas cooling zone is necessary to ensure the temperature before pressure adjustment described above. It is desirable to cool the gas with cold water from a refrigerator.
冷却系が、吸収冷凍機の蒸発器によって冷却された冷水
を炉内雰囲気ガスによる冷却工程のための冷却用雰囲気
ガスの冷却に循環使用するとともに吸収冷凍機の吸収器
および凝縮機の冷却に使用し、吸収冷凍機の吸収器およ
び凝縮機の冷却に使用した後の冷却余水を急冷のための
冷却用雰囲気ガスの冷却に循環使用してなる場合、急冷
工程に用いるガス冷却用水として過時効処理後のガス冷
却工程に用いるガス冷却用水より温度が高い冷却余水を
用いるのは、急冷工程に入る前のストリップの温度が過
時効処理後のストリップの温度よりはるかに高く、高温
の冷却余水を用いても急冷になるからである。The cooling system circulates and uses the cold water cooled by the evaporator of the absorption chiller to cool the cooling atmosphere gas for the cooling process using the in-furnace atmosphere gas, and also to cool the absorber and condenser of the absorption chiller. However, if the remaining cooling water after being used to cool the absorber and condenser of an absorption chiller is recycled to cool the cooling atmosphere gas for quenching, it is considered over-aged as the gas cooling water used in the quenching process. The reason for using cooling surplus water, which has a higher temperature than the gas cooling water used in the gas cooling process after treatment, is that the temperature of the strip before entering the quenching process is much higher than the temperature of the strip after overaging treatment, and the high temperature surplus cooling water is used. This is because even if water is used, it will be rapidly cooled.
すなわち、過時効処理後のストリップの温度は３００℃
程度、急冷工程に入る前のストリツプの温度は７００℃
程度であり、過時効処理後のガス冷却工程で必要となる
冷却用ガス温度は４０〜８０℃、急冷工程で必要となる
冷却用ガス温度は１５０〜３００℃程度であり、過時効
処理後のガス冷却工程で用いた冷却余水を急冷工程に用
いるガスの冷却用水に用いても急冷になるからである。That is, the temperature of the strip after overaging treatment is 300°C.
The temperature of the strip before entering the quenching process is 700℃
The cooling gas temperature required in the gas cooling process after overaging treatment is approximately 40 to 80℃, and the cooling gas temperature required in the rapid cooling process is approximately 150 to 300℃. This is because even if the leftover cooling water used in the gas cooling step is used as cooling water for the gas used in the quenching step, quenching will occur.
以上に述べた如くこの発明においては供給された新水に
吸収される熱量をライン内外に有効利用でき、冷却系の
冷凍機の熱源もまかない得るので産業上高い効果を奏し
得るものである。As described above, in this invention, the amount of heat absorbed by the fresh water supplied can be effectively used inside and outside the line, and it can also be used as a heat source for the refrigerator in the cooling system, so it can be highly effective industrially.
第１図はこの発明の一実施例に係る連続焼鈍ラインのラ
イン構成を示す説明図、第２図は同じくその冷却水供給
系統の説明図である。
３・・・・・・湯洗槽、４・・・・・・アルカリ洗浄槽
、５・・・・・・スプレー湯洗槽、６−１，６−２・・
・・・・ドライヤー、１０・・・・・・ガス冷却帯、１
１・・・・・・水焼入れスプレー、１２・・・・・・水
冷タンク、１３・・・・・・酸洗槽、１４・・・・・・
中和槽、１５・・・・・・湯洗槽、１８・・・・・・ガ
ス冷却帯、２０・・・・・・水冷装置、２１・・・・・
・乾燥装置、３３・・・・・・吸収冷凍機、３４・・・
・・・第１熱交換器、３５・・・・・・第２熱交換器、
３７・・・・・・再生器、３８・・・・・・蒸発器、３
９・・・・・・凝縮器および吸収器。FIG. 1 is an explanatory diagram showing the line configuration of a continuous annealing line according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the cooling water supply system. 3... Hot water washing tank, 4... Alkaline washing tank, 5... Spray hot water washing tank, 6-1, 6-2...
...Dryer, 10...Gas cooling zone, 1
1... Water quenching spray, 12... Water cooling tank, 13... Pickling tank, 14...
Neutralization tank, 15... Hot water washing tank, 18... Gas cooling zone, 20... Water cooling device, 21...
・Drying device, 33... Absorption refrigerator, 34...
...first heat exchanger, 35...second heat exchanger,
37... Regenerator, 38... Evaporator, 3
9... Condenser and absorber.
Claims (1)
熱処理設備において、冷却使用済の冷却水を上記冷凍機
の熱源に用いることを特徴とするストリップ連続熱処理
設備における冷却水の供給方法。 ２ ストリップ連続熱処理設備は、再結晶焼鈍工程、炉
内雰囲気ガスによる急冷工程、過時効処理工程、および
炉内雰囲気ガスによる冷却工程を順に連続的に配備して
なることを特徴とする特許請求の範囲第１項記載のスト
リップ連続熱処理設備における冷却水の供給方法。 ３ ストリップ連続熱処理設備は、再結晶焼鈍工程、水
焼入工程、過時効処理工程および炉内雰囲気ガスによる
冷起工程および／または水冷却工程を順に連続的に配備
してなることを特徴とする特許請求の範囲第１項記載の
ストリップ連続熱処理設備における冷却水の供給方法。 ４ 冷却系は、吸収冷凍機の蒸発器によって冷却された
冷水を炉内雰囲気ガスによる冷却工程のための冷却用雰
囲気ガスの冷却に循環使用するとともに吸収冷凍機の吸
収器および凝縮機の冷却に使用し、吸収冷凍機の吸収器
および凝縮機の冷却に使用した後の冷却余水を急冷工程
のための冷却用雰囲気ガスの冷却に循環使用してなるこ
とを特徴とする特許請求の範囲第２項記載のストリップ
連続熱処理設備における冷却水の供給方法。 ５ 冷却系は吸収冷凍機の蒸発器によって冷却された冷
水を水焼入工程および／または水冷却工程の冷却水とし
て使用し、その冷却使用後の冷却余水を上記冷凍機の吸
収器および凝縮機の冷却に使用した後更に冷却用雰囲気
ガスの冷却に使用してなることを特徴とする特許請求の
範囲第３項記載のストリツプ連続熱処理設備における冷
却水の供給方法。[Claims] 1. Cooling water in strip continuous heat treatment equipment equipped with a cooling system having an absorption refrigerator, characterized in that used cooling water is used as a heat source for the refrigerator. Supply method. 2. The continuous strip heat treatment equipment is characterized in that a recrystallization annealing process, a quenching process using a furnace atmosphere gas, an overaging process, and a cooling process using a furnace atmosphere gas are successively installed in this order. A method for supplying cooling water in a strip continuous heat treatment facility according to scope 1. 3. The continuous strip heat treatment equipment is characterized by successively installing a recrystallization annealing process, a water quenching process, an overaging process, a cooling process using an atmosphere gas in the furnace, and/or a water cooling process in this order. A method for supplying cooling water in a strip continuous heat treatment facility according to claim 1. 4. The cooling system circulates and uses the cold water cooled by the evaporator of the absorption chiller to cool the cooling atmosphere gas for the cooling process using the in-furnace atmosphere gas, and also to cool the absorber and condenser of the absorption chiller. The cooling surplus water after being used for cooling the absorber and condenser of an absorption chiller is circulated and used for cooling the cooling atmosphere gas for the quenching process. 2. A method for supplying cooling water in the strip continuous heat treatment facility according to item 2. 5. The cooling system uses the cold water cooled by the evaporator of the absorption refrigerator as cooling water for the water quenching process and/or the water cooling process, and uses the remaining cooling water after cooling to the absorber and condensation of the refrigerator. 4. A method for supplying cooling water in a continuous strip heat treatment facility according to claim 3, wherein the cooling water is further used to cool an atmospheric gas for cooling after being used for cooling the equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51138410A JPS582250B2 (en) | 1976-11-19 | 1976-11-19 | Cooling water supply method in continuous annealing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51138410A JPS582250B2 (en) | 1976-11-19 | 1976-11-19 | Cooling water supply method in continuous annealing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5363204A JPS5363204A (en) | 1978-06-06 |
| JPS582250B2 true JPS582250B2 (en) | 1983-01-14 |
Family
ID=15221299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51138410A Expired JPS582250B2 (en) | 1976-11-19 | 1976-11-19 | Cooling water supply method in continuous annealing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582250B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527740B2 (en) * | 1986-08-01 | 1993-04-22 | Tori Kk |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833849A (en) * | 1971-09-02 | 1973-05-14 |
-
1976
- 1976-11-19 JP JP51138410A patent/JPS582250B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833849A (en) * | 1971-09-02 | 1973-05-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527740B2 (en) * | 1986-08-01 | 1993-04-22 | Tori Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5363204A (en) | 1978-06-06 |
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