EP3758863A1 - Kühlvorrichtung zum kühlen eines zu kühlenden guts - Google Patents
Kühlvorrichtung zum kühlen eines zu kühlenden gutsInfo
- Publication number
- EP3758863A1 EP3758863A1 EP19707784.5A EP19707784A EP3758863A1 EP 3758863 A1 EP3758863 A1 EP 3758863A1 EP 19707784 A EP19707784 A EP 19707784A EP 3758863 A1 EP3758863 A1 EP 3758863A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- cooling device
- conduit means
- lower chamber
- chamber
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices 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
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices 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
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
Definitions
- Cooling device for cooling a material to be cooled
- the invention relates to a cooling device for cooling a product to be cooled, comprising a feed for a cooling medium, which directs this into a first, upper chamber of the cooling device, wherein first conduit means are present, the cooling medium from the upper chamber into a second, lower chamber the cooling device, wherein the upper chamber is separated from the lower chamber by a wall, wherein second conduit means are present, the cooling medium from the lower chamber to at least one outlet opening for the cooling medium, via which the cooling medium is discharged to the material to be cooled ,
- Such a cooling device is described in CN 103316934 A.
- the cooling water is passed from an upper chamber via pipes in the lower chamber, which are mounted on said wall and extend from this upwards over a certain height in the upper chamber. From a certain level in the upper chamber then cooling water runs into the lower chamber at the bottom outlet pipes for the cooling water are mounted, through which the cooling water expires, as soon as a corresponding level is reached in the lower chamber.
- Another, similar solution is shown by CN 101838724 A.
- the previously known solutions are cooling devices for rolling stock, which are used above and below the rolling stock to apply it to the cooling medium and thus to cool.
- water is usually used as the cooling medium.
- the rolling stock is cooled in one pass, wherein the rolling stock is transported by rollers through the cooling.
- the cooling bars are switched off. After the supply of water to the chilled beam is terminated, there is a relatively long afterglow or dripping of the chilled beams, in particular in the case of the upper chill beams with nozzle assembly.
- the cooling medium thus flows in the previously known solutions via the connection in an internal manifold into the interior of the cooling beam.
- the outflow openings of the distributor are always below the minimum cooling medium level.
- the water level must first lower to the minimum level.
- the self-cooling of the cooling device which is needed in the event that the cooling device is not used, but under her hot material happens, has not been satisfactorily solved in the previously known solutions.
- the invention is based on the invention to develop a cooling device of the type mentioned so that a long dripping after completion of the cooling process can be avoided. So it should be accomplished quickly stopping the spout of the cooling medium, d. H. It should be provided cooling bars that allow a fast idling. It should also be ensured that the most uniform possible cooling takes place and a locally concentrated application of water can be avoided. For this purpose, however, complex or vulnerable elements (valves, etc.) should be avoided. Another important aspect is that it should be possible to effectively cool the cooling device during cooling pauses.
- the solution to this problem by the invention is characterized in that the first conduit means adjoin the wall with its upper end or pass it upwards and protrude into the lower chamber and open into it with an open end, that the second conduit means of one
- the second conduit means preferably enforce the bottom region of the lower chamber in order to apply the cooling medium to the material to be cooled.
- the vertical extension from the lower end of the first conduit means to the upper end of the second conduit means is preferably between 0.01 m to 1, 00 m, more preferably between 0.1 m and 0.5 m.
- the first conduit means are preferably formed by at least one tube which is attached to or in the wall, preferably on the underside of the wall, and is fluidically connected to the upper chamber.
- the second conduit means are preferably formed by at least one tube, in particular of any cross-section, which is fastened to the bottom region of the lower chamber.
- the second conduit means are formed by a plurality of tubes, wherein spray nozzles for the cooling medium are arranged at the end of the tubes.
- the spray nozzles for the cooling medium are preferably uniformly distributed on the underside of the lower chamber or arranged on a component connected thereto.
- a drain for the cooling medium is preferably arranged, wherein in the drain preferably controllable shut-off valves (in particular valve means) are arranged.
- the outflow is preferably arranged at a height position of the lower chamber, which lies below the upper end of the second conduit means.
- At least one draining device (in particular a drain valve) can be arranged on the lower chamber in order to be able to discharge the cooling medium from the chamber.
- At least one venting device (in particular a venting valve) can be arranged at the inlet and / or at the upper chamber and / or at the lower chamber.
- the proposed cooling device is suitable for heavy plate rolling mills, for hot strip mills and for heat treatment lines, especially for steel materials. Equally, however, an application for non-ferrous metals is possible
- the cooling model computer may be provided a cooling model computer, which allows an intelligent control of the cooling device.
- the cooling model computer is to switch off the cooling device as a function of the actual idle time.
- the computer should determine the required target times either independently based on the existing process data or adopt specifications from other process model computers.
- venting devices can be provided on the chambers or pipelines. These vents can also improve the emptying behavior when they are opened when closing the main feeder. Thus, air can quickly flow into the chilled beam.
- the proposed conception allows a rapid emptying of the cooling device after the cooling process.
- the idling behavior is improved by easy-to-implement measures.
- the number of moving parts (which are susceptible to errors such as valves, etc.) can be reduced.
- a uniform and homogeneous distribution of water in the direction transverse to the conveying direction of the material to be cooled is ensured.
- FIGURE shows the side view of a cooling device with which a material to be cooled is cooled.
- a cooling device 1 can be seen, with the means of a cooling medium M (water) to be cooled Good 2, for example, a belt is cooled.
- the cooling medium M passes through an inlet 3 in a vertical direction V upper first chamber 4.
- a lower second chamber 6 is arranged, wherein the two chambers 4, 6 are separated by a wall 7 from each other.
- a plurality of (in the embodiment, two) straight tubes of any cross-section (first conduit means) 5 are arranged, which are mechanically attached to or in the wall 7, but fluidly connected to the upper chamber 4. Accordingly, water can flow from the upper chamber 4 into the lower chamber 6 via these tubes 5.
- a number of straight tubes of any cross-section (second conduit means) 8 are provided which extend upwardly from the bottom area of the lower chamber 6; at its lower end there is an outlet opening 9, which acts as a nozzle, with which the water is discharged to the Good 2.
- the middle nozzle or outlet opening 9 is indicated by dashed lines, as the water M reaches the material to be cooled 2.
- the first conduit means 5 have an open end 10, while the second conduit means 8 have an open end 1 1. It is essential that the lower end 10 of the first conduit means 5 is below the upper end 1 1 of the second conduit means 8. The resulting vertical extent is marked with h. Thus, for the minimum level W min in the lower chamber 6 results in a value which is defined by the upper end 1 1 of the second conduit means 8. As long as this level is exceeded, water exits from the outlet openings 9; If this level is reached or fallen below, no more water comes out of the outlet openings 9.
- a drain 12 is arranged, which can be opened and closed, for example, with controllable shut-off valves 13.
- the present concept is therefore based on an upper and a lower chamber, which are interconnected by inner tubes of any cross-section (first conduit means 5).
- the outflow opening of these tubes (first conduit means) is always below the minimum level W min (water level) of the lower chamber 6. This prevents emptying of the upper chamber 4 and the connected piping (inlet).
- the number and the cross section of the first conduit means 5 are arbitrary.
- cooling device 1 Due to the stated structure of the cooling device 1, it is possible to supply the cooling bar, after emptying and opening the obturator 13, via the inlet 3 with a small amount of cooling medium. This amount then ensures that the cooling device is cooled from the inside when goods (sheets) must pass through the cooling device 1, without being cooled by it.
- the cooling medium for self-cooling can drain via the outlet 12 in the cooling device without it flowing from the nozzles to the material and this cools.
- the drain 12 is arranged below the upper end 11 of the second conduit means.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018202843.5A DE102018202843A1 (de) | 2018-02-26 | 2018-02-26 | Kühlvorrichtung zum Kühlen eines zu kühlenden Guts |
| PCT/EP2019/054705 WO2019162522A1 (de) | 2018-02-26 | 2019-02-26 | Kühlvorrichtung zum kühlen eines zu kühlenden guts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3758863A1 true EP3758863A1 (de) | 2021-01-06 |
| EP3758863B1 EP3758863B1 (de) | 2022-02-16 |
Family
ID=65576367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19707784.5A Active EP3758863B1 (de) | 2018-02-26 | 2019-02-26 | Kühlvorrichtung zum kühlen eines zu kühlenden guts |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11872615B2 (de) |
| EP (1) | EP3758863B1 (de) |
| JP (1) | JP7018145B2 (de) |
| CN (1) | CN111801174B (de) |
| DE (1) | DE102018202843A1 (de) |
| WO (1) | WO2019162522A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE904177A (fr) * | 1986-02-05 | 1986-08-05 | Centre Rech Metallurgique | Dispositif de refroidissement d'un produit metallique en mouvement. |
| JPH01178309A (ja) * | 1987-12-29 | 1989-07-14 | Nippon Steel Corp | 熱延鋼板の冷却装置 |
| US5390900A (en) * | 1994-04-26 | 1995-02-21 | Int Rolling Mill Consultants | Metal strip cooling system |
| DE10025639A1 (de) | 2000-05-24 | 2001-11-29 | Sms Demag Ag | Düsenbalken für die Kühlung oder Entzunderung von metallischem Stranggut, insbesondere von Walzgut |
| DE102004015741A1 (de) * | 2004-03-29 | 2005-10-20 | Sms Demag Ag | Vorrichtung zum Kühlen von Blechen und Bändern |
| JP4377829B2 (ja) | 2005-02-10 | 2009-12-02 | 新日本製鐵株式会社 | 気水スプレーユニット |
| JP4377873B2 (ja) * | 2005-11-17 | 2009-12-02 | 新日本製鐵株式会社 | 鋼板の制御冷却装置および冷却方法 |
| CN200954521Y (zh) * | 2005-11-25 | 2007-10-03 | 首钢总公司 | 一种用于热轧薄带钢的低压喷水冷却装置 |
| KR20090056190A (ko) * | 2007-11-30 | 2009-06-03 | 주식회사 포스코 | 고온소재 냉각장치 |
| JP2010214433A (ja) * | 2009-03-18 | 2010-09-30 | Jfe Steel Corp | 鋼材の冷却装置および冷却方法 |
| CN101838724B (zh) * | 2009-09-22 | 2011-06-29 | 北京科技大学 | 一种可调水凸度的板带淬火控冷集管 |
| JP4903920B1 (ja) * | 2010-07-22 | 2012-03-28 | 新日本製鐵株式会社 | 鋼板の冷却装置及び鋼板の冷却方法 |
| KR101253898B1 (ko) * | 2010-12-23 | 2013-04-16 | 주식회사 포스코 | 냉각헤더 |
| CN102274808A (zh) * | 2011-07-08 | 2011-12-14 | 东北大学 | 可形成高密度喷射流的冷却装置 |
| KR101461758B1 (ko) * | 2012-12-27 | 2014-11-20 | 주식회사 포스코 | 센서장치 및 이를 포함하는 냉각설비의 성능 평가장치 |
| EP2777836A1 (de) * | 2013-03-14 | 2014-09-17 | Siemens VAI Metals Technologies GmbH | Kühleinrichtung mit Spritzbalken mit verlängerten Auslässen |
| CN103316934B (zh) * | 2013-06-24 | 2016-01-06 | 中冶赛迪工程技术股份有限公司 | 一种多阻尼的可分离腔体的上喷层流冷却装置 |
| CN104174670B (zh) * | 2014-09-12 | 2016-02-24 | 中冶赛迪工程技术股份有限公司 | 宽向可变流量的冷却集管 |
| CN107309280B (zh) * | 2015-07-20 | 2019-01-25 | 东北大学 | 多腔体流量可控喷淋集管 |
-
2018
- 2018-02-26 DE DE102018202843.5A patent/DE102018202843A1/de not_active Withdrawn
-
2019
- 2019-02-26 US US16/971,387 patent/US11872615B2/en active Active
- 2019-02-26 WO PCT/EP2019/054705 patent/WO2019162522A1/de not_active Ceased
- 2019-02-26 EP EP19707784.5A patent/EP3758863B1/de active Active
- 2019-02-26 JP JP2020544640A patent/JP7018145B2/ja active Active
- 2019-02-26 CN CN201980015310.1A patent/CN111801174B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7018145B2 (ja) | 2022-02-15 |
| JP2021514846A (ja) | 2021-06-17 |
| EP3758863B1 (de) | 2022-02-16 |
| US20200384516A1 (en) | 2020-12-10 |
| CN111801174A (zh) | 2020-10-20 |
| CN111801174B (zh) | 2023-04-11 |
| WO2019162522A1 (de) | 2019-08-29 |
| US11872615B2 (en) | 2024-01-16 |
| DE102018202843A1 (de) | 2019-08-29 |
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