CN103042053A - Water supply system for concurrency of dual ultrafast cooling and laminar flow cooling systems - Google Patents
Water supply system for concurrency of dual ultrafast cooling and laminar flow cooling systems Download PDFInfo
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- CN103042053A CN103042053A CN2012105692743A CN201210569274A CN103042053A CN 103042053 A CN103042053 A CN 103042053A CN 2012105692743 A CN2012105692743 A CN 2012105692743A CN 201210569274 A CN201210569274 A CN 201210569274A CN 103042053 A CN103042053 A CN 103042053A
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Abstract
The invention discloses a water supply system for concurrency of dual ultrafast cooling and laminar flow cooling systems. The water supply system is characterized by comprising a cold water tank, a water supply pump set, a water supply main, an elevated water tank, an elevated water tank water supply pipe, a regulating valve, an on-off valve and a laminar flow cooling device water supply pipeline, an inlet end of the water supply pump set is connected to the cold water tank, the water supply main is connected with a water outlet end of the water supply pump set so as to be connected to an ultrafast cooling device, the elevated water tank is connected onto the water supply main through the elevated water tank water supply pipe, the laminar flow cooling device water supply pipeline is connected with the elevated water tank and a laminar flow cooling device, and the regulating valve is mounted on the elevated water tank water supply pipe. The water supply system meets the process water requirements of various working conditions such as independent ultrafast cooling use, independent laminar flow cooling use and simultaneous use of ultrafast cooling and laminar flow cooling, and water system investment is saved effectively.
Description
Technical field
The invention belongs to rolling automatic control technology field, relate in particular to the water system that cut deal rolls rear cooling device.
Background technology
At present the rear cooling device form of rolling commonly used has ultra-fast cooling device and cooling facility for laminar flow etc., and the production line that ultra-fast cooling device and cooling facility for laminar flow are disposed is simultaneously also arranged.Different cooling devices is different to the configuration requirement of water system.Cooling facility for laminar flow is lower with water pressure, the general high-level tank water that adopts, namely by the supply-water pump group water is delivered to elevated tank, cooling water in the elevated tank is under the effect of deadweight, feed to cooling facility for laminar flow, so water supply process hydraulic pressure is more stable, because possessing water storage, elevated tank transfers the stream function simultaneously, the water utilizing process energy consumption is lower.The water characteristics of ultra-fast cooling device are that the pressure of cooling water is higher, if adopt high-level tank water, one-time investment is larger, so generally adopt water pump directly to supply water.
Generally speaking, factory only is equipped with a kind of cooling device of form, and is therefore relatively simple to the designing requirement of water system.Along with the development of technology, the simultaneously cooling device of configuration of ultrafast cold-peace laminar flow cooling has appearred, because the demand of different to the requirement of water system from production technology generally need to dispose respectively the supply-water pump group, equipment investment is very large.
Summary of the invention
Purpose of the present invention is exactly the problem that exists for prior art, provide a kind of for the parallel water system of ultrafast cold-peace laminar flow cooling dual system, this water system can satisfy ultra-fast cooling device and cooling facility for laminar flow while water and only adopt a cover supply-water pump group.
Above-mentioned purpose realizes by following proposal:
A kind of for the parallel water system of ultrafast cold-peace laminar flow cooling dual system, it is characterized in that described water system comprises water cooling pond, supply-water pump group, water main, elevated tank, high-level tank water pipe, control valve, open and close valve and cooling facility for laminar flow supply channel; The water inlet end of described supply-water pump group is connected to described water cooling pond, and the water side that described water main connects described supply-water pump group is connected to ultra-fast cooling device; Described elevated tank is connected on the described water main by the high-level tank water pipe; Described cooling facility for laminar flow supply channel connects described elevated tank and cooling facility for laminar flow.
Water system according to above-mentioned is characterized in that, at the high-level tank water pipeline control valve is installed, and control valve is according to production technology Location of requirement opening degree, and during ultrafast cold independent use, the control valve opening degree is set as 0%; When the laminar flow cooling was used separately, the control valve opening degree was set as 100%; When ultrafast cold-peace laminar flow cooling is used simultaneously, if laminar flow cools off average water consumption at 500m
3Below/the h, the control valve opening degree is set as 10%, and laminar flow cools off average water consumption at 500～1000m
3In the time of between/the h, the control valve opening degree is set as 15%.
Beneficial effect of the present invention: the present invention utilizes same set of water system to satisfy the process water demand of the various operating modes such as ultrafast cold independent use, separately use of laminar flow cooling, simultaneously use of ultrafast cold-peace laminar flow cooling, has effectively saved the water system investment.
Description of drawings
Fig. 1 is the structural representation of water system of the present invention.
The specific embodiment
Referring to Fig. 1, water cooling pond 1 of the present invention, supply-water pump group 2, water main 3, high-level tank water pipe 4, control valve 5, elevated tank 6, open and close valve 7, ultra-fast cooling device 8, cooling facility for laminar flow supply channel 9, cooling facility for laminar flow 10.The water inlet end of supply-water pump group 2 is connected to water cooling pond 1, be responsible for from water cooling pond 1 water intaking and after 2 superchargings of supply-water pump group, deliver to elevated tank 6 or ultra-fast cooling device 8 by water main 3, at high water tank feed pipe 4 control valve 5 is installed, be used for adjusting elevated tank 6 outputs, position after water main 3 elevated tank 6 (being high-level tank water pipe 4 and position afterwards, water main junction) is equipped with open and close valve 7, use when being used for ultrafast cold 8 maintenance, the cooling water of elevated tank 6 the insides is used through cooling facility for laminar flow supply channel 9 supplying layer flow cooling devices by deadweight.
Supply-water pump group 2 is full variable frequency pump group, and model is 24SH-9, Q=2850m
3/ h, H=75m, 3 of quantity; Elevated tank volume 100 m
3Maximum water demand when ultra-fast cooling device uses separately: hydraulic pressure 5bar, water yield 6500m
3/ h; Maximum water demand when cooling facility for laminar flow uses separately: hydraulic pressure 1bar, the water yield 2500 m
3/ h; When ultrafast cold-peace laminar flow cooling was used simultaneously, ultrafast cold water was pressed 5bar, maximum amount of water 6000m
3/ h, laminar cooling water press 1bar, flood 1500 m
3/ h.The above water yield is the limit water consumption when producing extreme kind or specification, and for general kind and specification, the actual used water amount is much smaller than maximum water consumption.
During normal production, open and close valve 7 is often opened.When the laminar flow cooling is used separately, control valve 5 opens to 100%, open a supply-water pump and can satisfy the industrial water demand, water main's 3 interior most of current direction elevated tanks, only has a small part current direction ultra-fast cooling device 8, for nozzle from water-cooled, equipment from water-cooled, control system is carried out the closed-loop control of elevated tank water level, at elevated tank liquid level gauge is installed and detects high water tank.When the elevated tank water level is low, improve the water pump frequency, when water level is higher, reduce the water pump frequency.When ultrafast cold independent use, control valve 5 cuts out (namely being adjusted to 0%) (if the laminar flow cooling has from the water-cooled needs, control valve 5 can be given suitable aperture 5～10%, making cooling water can get to elevated tank gets final product), open the water pump number of units according to ultrafast cold process water Location of requirement, control system is carried out pressure closed loop according to ultrafast cold process requirements, and the pressure detecting point is positioned at ultra-fast cooling device shunting collector pipe.When ultrafast cold-peace laminar flow cooling is used simultaneously, control valve 5 is opened to suitable aperture, open the water pump number of units according to the process water Location of requirement.Control system is carried out pressure closed loop according to ultrafast cold process requirements.For Heavy Plate Production, the off time of ultra-fast cooling device and cooling facility for laminar flow is greater than spending the steel time, can utilize and open 5 pairs of elevated tank moisturizings of control valve off time, avoid cistern water level to be lower than lower limit, control valve 5 apertures need to satisfy high-order minimum rate of water make-up requirement.Minimum rate of water make-up=(maximum water consumption * water time)/monolithic steel plate rolling time, different for the above parameter of the steel plate of different size, kind, so the aperture of control valve 5 is different.In general, if laminar flow cools off average water consumption at 500m
3Below/the h, the control valve opening degree is set as 10%, and laminar flow cools off average water consumption at 500～1000m
3In the time of between/the h, the control valve opening degree is set as 15%.
Claims (2)
1. one kind is used for the parallel water system of ultrafast cold-peace laminar flow cooling dual system, it is characterized in that described water system comprises water cooling pond, supply-water pump group, water main, elevated tank, high-level tank water pipe, control valve, open and close valve and cooling facility for laminar flow supply channel; The water inlet end of described supply-water pump group is connected to described water cooling pond, and the water side that described water main connects described supply-water pump group is connected to ultra-fast cooling device; Described elevated tank is connected on the described water main by the high-level tank water pipe; Described cooling facility for laminar flow supply channel connects described elevated tank and cooling facility for laminar flow.
2. water system according to claim 1 is characterized in that, at the high-level tank water pipeline control valve is installed, and control valve is according to production technology Location of requirement opening degree, and during ultrafast cold independent use, the control valve opening degree is set as 0%; When the laminar flow cooling was used separately, the control valve opening degree was set as 100%; When ultrafast cold-peace laminar flow cooling is used simultaneously, if laminar flow cools off average water consumption at 500m
3Below/the h, the control valve opening degree is set as 10%, and laminar flow cools off average water consumption at 500～1000m
3In the time of between/the h, the control valve opening degree is set as 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210569274.3A CN103042053B (en) | 2012-12-25 | 2012-12-25 | A kind of water system parallel for ultrafast cold-peace section cooling dual system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210569274.3A CN103042053B (en) | 2012-12-25 | 2012-12-25 | A kind of water system parallel for ultrafast cold-peace section cooling dual system |
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| CN103042053A true CN103042053A (en) | 2013-04-17 |
| CN103042053B CN103042053B (en) | 2015-12-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805260A (en) * | 2015-04-10 | 2015-07-29 | 北京首钢股份有限公司 | Cooling water supply system and buffer water supply method thereof |
| CN104971947A (en) * | 2014-04-10 | 2015-10-14 | 鞍钢股份有限公司 | Method for controlling liquid level of laminar flow water tank |
| CN115652217A (en) * | 2022-11-15 | 2023-01-31 | 山东钢铁集团日照有限公司 | Steel with high product of strength and elongation for high-strength corrugated beam and production method thereof |
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| JP2004160532A (en) * | 2002-11-15 | 2004-06-10 | Nippon Steel Corp | Hot-rolled steel strip cooling control method |
| JP2011025282A (en) * | 2009-07-27 | 2011-02-10 | Jfe Steel Corp | Equipment and method for cooling thick steel plate |
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2012
- 2012-12-25 CN CN201210569274.3A patent/CN103042053B/en not_active Expired - Fee Related
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| JP2004160532A (en) * | 2002-11-15 | 2004-06-10 | Nippon Steel Corp | Hot-rolled steel strip cooling control method |
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| 胡啸等: "中厚板轧后超快速冷却系统流量调节技术", 《钢铁》, vol. 47, no. 5, 31 May 2012 (2012-05-31), pages 45 - 48 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971947A (en) * | 2014-04-10 | 2015-10-14 | 鞍钢股份有限公司 | Method for controlling liquid level of laminar flow water tank |
| CN104805260A (en) * | 2015-04-10 | 2015-07-29 | 北京首钢股份有限公司 | Cooling water supply system and buffer water supply method thereof |
| CN104805260B (en) * | 2015-04-10 | 2017-01-18 | 北京首钢股份有限公司 | Cooling water supply system and buffer water supply method thereof |
| CN115652217A (en) * | 2022-11-15 | 2023-01-31 | 山东钢铁集团日照有限公司 | Steel with high product of strength and elongation for high-strength corrugated beam and production method thereof |
| CN115652217B (en) * | 2022-11-15 | 2024-01-26 | 山东钢铁集团日照有限公司 | High-strength wave beam steel with high strength and elongation product and production method thereof |
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| CN103042053B (en) | 2015-12-02 |
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