KR200155948Y1 - Cooler of hot rolled strip - Google Patents

Cooler of hot rolled strip Download PDF

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Publication number
KR200155948Y1
KR200155948Y1 KR2019950046760U KR19950046760U KR200155948Y1 KR 200155948 Y1 KR200155948 Y1 KR 200155948Y1 KR 2019950046760 U KR2019950046760 U KR 2019950046760U KR 19950046760 U KR19950046760 U KR 19950046760U KR 200155948 Y1 KR200155948 Y1 KR 200155948Y1
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KR
South Korea
Prior art keywords
coolant
header
hot rolled
cooling water
rolled strip
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KR2019950046760U
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Korean (ko)
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KR970027334U (en
Inventor
조열래
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이구택
포항종합제철주식회사
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Priority to KR2019950046760U priority Critical patent/KR200155948Y1/en
Publication of KR970027334U publication Critical patent/KR970027334U/en
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Publication of KR200155948Y1 publication Critical patent/KR200155948Y1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203Cooling
    • B21B45/0209Cooling devices, e.g. using gaseous coolants
    • B21B45/0215Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233Spray nozzles, Nozzle headers; Spray systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

본 고안은 열연 스트립 냉각장치에 관한 것으로서, 특히 냉각수를 분사시키기 위해 스트립(5)의 상부에 냉각수 공급관(8), 냉각수 헤더(9), 노즐파이프(12)가 설치되는 열연 스트립 냉각장치에 있어서, 상부 일측에 축방향으로 냉각수 공급홀(14)이 형성되는 냉각수 헤더(9)와, 하부에 상기 냉각수 헤더(9)가 설치되고, 내장되는 상기 냉각수 공급홀(14)의 반대측에 난류방지판(1)(13) 및 노즐파이프(2)이 연설되며, 상기 노즐파이프(2)에 공기흡입용 파이프(3)가 형성되고, 내부의 냉각수 충진율을 향상시키기 위해 표면에 테이퍼(Taper)가 형성되는 헤더커버(4)로 구성되는 것을 특징으로 하는 열연 스트립 냉각장치에 관한 것이다.The present invention relates to a hot rolled strip chiller, and more particularly, in a hot rolled strip chiller having a coolant supply pipe (8), a coolant header (9), and a nozzle pipe (12) installed on an upper portion of the strip (5) to inject coolant. A coolant header 9 having a coolant supply hole 14 formed at an upper side thereof in an axial direction, and a coolant header 9 provided at a lower side thereof, and a turbulence preventing plate at an opposite side of the coolant supply hole 14 embedded therein. (1) (13) and nozzle pipe (2) are extended, air suction pipe (3) is formed in the nozzle pipe (2), and a taper is formed on the surface to improve the cooling water filling rate therein. It relates to a hot rolled strip cooling apparatus comprising a header cover (4).

Description

열연 스트립 냉각장치Hot rolled strip chiller

제1도는 종래기술에 따른 열연 스트립 냉각장치의 개략도.1 is a schematic view of a hot rolled strip cooling apparatus according to the prior art.

제2도는 본 고안에 따른 열연 스트립 냉각장치의 개략도이다.2 is a schematic view of a hot rolled strip cooling apparatus according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 상부난류방지판 2 : 노즐파이프1: upper turbulence prevention plate 2: nozzle pipe

3 : 공기흡입용 파이프 4 : 헤더 커버3: air suction pipe 4: header cover

5 : 스트립 6 : 런아웃사이드 가이드5: strip 6: runout side guide

7 : 런아웃테이블 롤러 8 : 냉각수 공급관7: runout table roller 8: cooling water supply pipe

9 : 냉각수 헤더 12 : 노즐파이프9: coolant header 12: nozzle pipe

13 : 하부난류방지판 14 : 냉각수 공급홀13: lower turbulence plate 14: cooling water supply hole

본 고안은 열연 스트립 냉각장치에 관한 것으로서, 특히 다듬질 압연이 완료된 소재(Strip)을 권취하기 전에 런 아웃(Run Out) 테이블(Table) 상부에 있는 냉각수 헤더에 취부된 노즐 파이프(Nozzle Pipe)를 통해 냉각수를 소재 폭 방향으로 균일하게 분사(On) 또는 미분사(Off)로 조절하면서 목표 권취온도로 냉각시키는 열연 스트립 냉각장치에 관한것이다.The present invention relates to a hot rolled strip chiller, in particular through a nozzle pipe mounted to a coolant header at the top of the run out table before winding the finished roll. The present invention relates to a hot rolled strip cooling apparatus that cools water to a target winding temperature while controlling the cooling water to be uniformly sprayed on or off in the material width direction.

제1도는 도시한 바와같이 종래의 헤더(Header)는 원통형의 냉각수 공급관(9) 중앙상부에 대략 ∩자 형상의 노즐 파이프(12)의 우측 하단이 삽입되며, 냉각수 분사(On)시 난류가 발생하여 공급측 노즐파이프(12)에서 부터 먼저 냉각수가 분사되고, 오프(Off)되면 공급측 노즐파이프부터 먼저 차단되므로 소재 폭 방향 냉각 불균일이 발생하며, 분사후 차단하여도 노즐 파이프에서 떨어지는 냉각수 중력(사이폰 현상)에 의해 즉시 차단되지 않고, 불필요하게 계속 흘러내려 온도 조절에 문제(과냉)가 많으며, 또한 노즐 파이프가 ∩자형으로 구부러져 있어서 노즐내부에 이물질(냉각수 분사압력 : 0.2~0.3kg/cm2)이 부착되어 막힘이 있어도 이를 제거 할 수가 없었다.As shown in FIG. 1, a conventional header has a lower right portion of a substantially U-shaped nozzle pipe 12 inserted into a central upper portion of a cylindrical coolant supply pipe 9, and turbulence is generated when the coolant is jetted. Cooling water is first injected from the supply side nozzle pipe 12, and when off, the supply pipe is blocked first from the supply side nozzle pipe so that the cooling width of the material occurs in the width direction of the material. It is not immediately blocked by the phenomenon, and it flows unnecessarily, causing many problems in temperature control (supercooling), and because the nozzle pipe is bent in a U-shape, foreign matter (coolant spray pressure: 0.2 to 0.3 kg / cm 2 ) is inside the nozzle. It could not be removed even if there was a blockage attached.

본 고안은 상기와 같은 종래의 문제점을 해결하여 열연코일(Strip) 권취온도(Coiling Temperature)적중률 향상과 냉각수 요인에 의한 제품 재질 편차를 최소화할 수 있는 열연 스트립 냉각장치를 제공함 그 목적이 있다.The object of the present invention is to provide a hot rolled strip cooling apparatus capable of solving a conventional problem as described above and minimizing a product material variation due to the improvement of the coiling temperature of the hot rolled coil and the cooling water factor.

상기의 목적을 달성하기 위하여 본 고안은 냉각수를 분사시키기 위해 스트립의 상부에 냉각수 공급관, 냉각수 헤더, 노즐파이프가 설치되는 열연 스트립 냉각장치에 있어서, 상부 일측에 축방향으로 냉각수 공급홀이 형성되는 냉각수 헤더와, 하부에 상기 냉각수 헤더가 설치되고, 내장되는 상기 냉각수 공급홀의 반대측에 난류방지판 및 노즐파이프가 연설되며, 상기 노즐파이프에 공기흡입용 파이프가 형성되고, 내부의 냉각수 충진율을 향상시키기 위해 표면에 테이퍼(Taper)가 형성되는 헤더커버로 구성되는 것을 특징으로 하는 열연 스트립 냉각장치를 제공한다.In order to achieve the above object, the present invention provides a hot water strip cooling apparatus in which a coolant supply pipe, a coolant header, and a nozzle pipe are installed at an upper portion of a strip to inject coolant, and the coolant having an axial cooling water supply hole formed at an upper side thereof. A header and a lower portion of the cooling water header are installed, and a turbulence preventing plate and a nozzle pipe are provided on the opposite side of the cooling water supply hole, and an air suction pipe is formed in the nozzle pipe to improve the cooling water filling rate therein. Provided is a hot rolled strip cooling apparatus comprising a header cover having a taper formed on a surface thereof.

이하 본 고안에 의한 열연 스트립 냉각장치의 구조 및 동작을 제2도를 참조하여 설명한다.Hereinafter, the structure and operation of the hot rolled strip cooling apparatus according to the present invention will be described with reference to FIG.

제2도는 본 고안에 따른 열연 스트립 냉각장치의 개략도이다.2 is a schematic view of a hot rolled strip cooling apparatus according to the present invention.

스트립(5)의 진행방향과 직각되게 스트립의 상부에 설치되는 원통관의 냉각수 헤더(9)는 일단이 냉각수 공급관(8)에 연결되고, 시계를 기준하여 10시에서 11시방향 사이의 외주면에 축방향으로 냉각수공급홀(14)이 형성되어 있다.The coolant header 9 of the cylindrical tube installed at the top of the strip perpendicularly to the traveling direction of the strip 5 is connected to the coolant supply pipe 8 at one end thereof, and is provided on the outer circumferential surface between 10 o'clock and 11 o'clock with respect to the clock. Cooling water supply holes 14 are formed in the axial direction.

그리고 하부가 냉각수 헤더(9)의 좌우측면에 축방향으로 부착되어 설치되어 있는 헤더 커버(4)에는 2개의 상하부 난류방지판(1)(13)이 내장되어 있다.In addition, two upper and lower turbulence preventing plates 1 and 13 are embedded in the header cover 4 having the lower portion attached to the left and right sides of the cooling water header 9 in the axial direction.

여기서 하부 난류방지판(1)은 냉각수 헤더(9)의 12시방향 외주면에 축방향으로 수직되게 고정되고, 상부 난류방지판(13)은 하부 난류방지판의 우측에 위치되도록 상단이 헤더커버(4)의 우측부 상면에 수직 고정된다.Here, the lower turbulence prevention plate 1 is fixed vertically in the axial direction to the 12 o'clock outer circumferential surface of the coolant header 9, and the upper turbulence prevention plate 13 is positioned at the right side of the lower turbulence prevention plate at the top of the header cover ( 4) is vertically fixed to the upper surface of the right side.

또한 헤더커버(4)의 우측 내면에 부착되어 설치되는 수직원통관인 노즐파이프(2)는 하부가 헤더커버의 하부에 연장되어 있다.In addition, the nozzle pipe 2, which is a vertical cylindrical tube attached to the right inner surface of the header cover 4, has a lower portion extending under the header cover.

한편 냉각수 공급관(8)을 통하여 공급된 냉각수는 스트립(5)의 진행방향과 직각되게 스트립의 상부에 설치되는 냉각수헤더(7)에 공급되고, 냉각수 헤더의 원주상 10시에서 11시방향 사이에 형성되는 냉각수공급홀(14)을 통해 헤더커버(4) 내부에 공급되어 상하부 난류방지판(1)(13)을 지나 노즐파이프(2)를 통해 분사되어 하부에 지나가는 스트립 상부에 분사하여 냉각시킨다.Meanwhile, the cooling water supplied through the cooling water supply pipe 8 is supplied to the cooling water header 7 installed on the upper portion of the strip at right angles to the traveling direction of the strip 5, and is disposed between 10 and 11 o'clock on the circumference of the cooling water header. It is supplied to the inside of the header cover (4) through the formed cooling water supply hole (14) is injected through the nozzle pipe (2) through the upper and lower turbulence prevention plate (1) 13 to cool by spraying the upper part of the strip passing through the lower part .

그리고 냉각수가 공급될때는 난류를 이루면서 공급되므로 난류 방지를 위해 상·하 두개소에 방지판(1)(13)을 취부하고, 분사후 오프(Off) 즉시 냉각수 흐름이 없도록 하기 위해 냉각수 공급 반대측 끝 상단에 직경 25mm의 공기 흡입용 파이프(3)가 각 헤더마다 취부되어 있다.And when the coolant is supplied, it is supplied while forming turbulent flow, so the prevention plate (1) (13) is attached to the upper and lower places to prevent turbulence, and the end opposite to the coolant supply to prevent the coolant flow immediately after spraying. An air suction pipe 3 having a diameter of 25 mm is attached to each header at the upper end.

여기서 길이 250mm의 노즐파이프(2)에서 냉각수 차단되기 위해서는 헤더 내부에 공기로 충만하여야 하고, 이를 위해 공기흡입용 파이프(3)를 설치한 것이다.Here, in order to block the coolant from the nozzle pipe 2 having a length of 250 mm, the inside of the header should be filled with air, and for this, an air suction pipe 3 is installed.

그리고 냉각수 분사시에는 냉각수 헤더(9) 내에 냉각수가 충만하여야 분사가 용이하므로 분사응답성을 빠르게 하도록 헤더커버의 상면을 비스듬히 형성시켜 헤더 내의 공간을 줄인다.When the coolant is sprayed, the coolant header 9 is filled with the coolant to facilitate the spraying, so that the upper surface of the header cover is obliquely formed to reduce the space in the header so as to increase the spray response.

또한 냉각수의 압력과 유속이 빠르지 않으므로 냉각수중의 이물질과 배관 부식에 의한 이물질이 노즐파이프(2) 청소를 용이하게 하기위해 노즐파이프는 직선으로 형성된다.In addition, since the pressure and flow rate of the cooling water are not fast, the foreign matter in the cooling water and foreign matters caused by the corrosion of the pipes are formed in a straight line to facilitate the cleaning of the nozzle pipe 2.

본 고안은 냉각수 공급시의 난류가 발생되지 않고, 냉각수 차단시 즉시 차단이 가능하며, 공급 즉시 분사가 되고, 노즐파이프 청소도 용이하며, 분사 응답성의 양호에 따른 온도조절과 설비관리가 원활하여 권취온도 향상과 냉각불량에 의한 폭방향 재질편차가 근절되는 효과를 제공한다.The present invention does not generate turbulence at the time of cooling water supply, it is possible to cut off immediately when the cooling water is shut off, it is sprayed immediately when supplying, it is easy to clean the nozzle pipe, the temperature control and facility management according to the good spray responsiveness are wound up smoothly. It provides the effect of erasing the material deviation in the width direction due to temperature improvement and poor cooling.

Claims (1)

냉각수를 분사시키기 위해 스트립(5)의 상부에 냉각수 공급관(8), 냉각수 헤더(9), 노즐파이프(12)가 설치되는 열연 스트립 냉각장치에 있어서, 상부 일측에 축방향으로 냉각수 공급홀(14)이 형성되는 냉각수 헤더(9)와, 하부에 상기 냉각수 헤더(9)가 설치되고, 내장되는 상기 냉각수 공급홀(14)의 반대측에 난류방지판(1)(13) 및 노즐파이프(2)이 연설되며, 상기 노즐파이프(2)에 공기흡입용 파이프(3)가 형성되고, 내부의 냉각수 충진율을 향상시키기 위해 표면에 테이퍼(Taper)가 형성되는 헤더커버(4)로 구성되는 것을 특징으로 하는 열연 스트립 냉각장치.In the hot rolled strip cooling apparatus, in which a coolant supply pipe 8, a coolant header 9, and a nozzle pipe 12 are installed at an upper portion of the strip 5 to inject coolant, the coolant supply hole 14 in the axial direction on one side of the strip 5 is provided. The cooling water header (9) is formed, and the cooling water header (9) is provided at the bottom, the turbulence prevention plate (1) 13 and the nozzle pipe (2) on the opposite side of the cooling water supply hole 14 is built This speech is characterized in that the nozzle pipe (2) is formed of a header cover (4) is formed in the air suction pipe 3, the taper (Taper) is formed on the surface to improve the cooling water filling rate therein Hot rolled strip chiller.
KR2019950046760U 1995-12-23 1995-12-23 Cooler of hot rolled strip KR200155948Y1 (en)

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KR2019950046760U KR200155948Y1 (en) 1995-12-23 1995-12-23 Cooler of hot rolled strip

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KR2019950046760U KR200155948Y1 (en) 1995-12-23 1995-12-23 Cooler of hot rolled strip

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KR970027334U KR970027334U (en) 1997-07-24
KR200155948Y1 true KR200155948Y1 (en) 1999-09-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100843843B1 (en) * 2006-12-21 2008-07-03 주식회사 포스코 Thick Plate Cooling Apparatus
KR100923552B1 (en) 2002-12-23 2009-10-27 주식회사 포스코 Hot coil cooling apparatus
KR101310829B1 (en) 2011-07-28 2013-09-25 현대제철 주식회사 Cooling device for hot rolled sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100923552B1 (en) 2002-12-23 2009-10-27 주식회사 포스코 Hot coil cooling apparatus
KR100843843B1 (en) * 2006-12-21 2008-07-03 주식회사 포스코 Thick Plate Cooling Apparatus
KR101310829B1 (en) 2011-07-28 2013-09-25 현대제철 주식회사 Cooling device for hot rolled sheet

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