CN102284521B - Steel plate uniform-cooling device with water outlets arranged in shape of curve - Google Patents
Steel plate uniform-cooling device with water outlets arranged in shape of curve Download PDFInfo
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- CN102284521B CN102284521B CN 201110247294 CN201110247294A CN102284521B CN 102284521 B CN102284521 B CN 102284521B CN 201110247294 CN201110247294 CN 201110247294 CN 201110247294 A CN201110247294 A CN 201110247294A CN 102284521 B CN102284521 B CN 102284521B
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Abstract
The invention discloses a steel plate uniform-cooling device with water outlets arranged in a shape of curve, which comprises an upper header device. A plurality of lines of water outlets which have a jetting direction vertical with the direction of a steel plate and a jetting range which covers the width of the steel plate are arranged on the upper header device; the plurality of the lines of the water outlets are arranged in parallel in a convey direction of the steel plate; projections of the water outlets on the steel plate are arranged in the shape of curve; an opening direction of the curve is as same as the convey direction of the steel plate. The manner of the water outlets of an upper header is changed from a linear manner to a curve manner, so that used cooling water absorbing a certain amount of heat fast departs the upper surface of the steel plate along a tangential direction of a back line of cooling water wall. Therefore, the residue of the cooling water on the edges is reduced; meanwhile, the device provided by the invention improves longitudinal and transverse cooling effects of the steel plate due to being good for more complete contact between fresh cooling water in the back line and the steel plate. The device provided by the invention has advantages of high transverse cooling uniformity, fast longitudinal cooling speed and less water consumption.
Description
Technical field
The present invention relates to the cooling device of hot rolled strip in a kind of steel rolling field.
Background technology
Controlled rolling and the cooling steel production technology that combines of control are called thermomechanical treatment technique.In the hot rolled strip production technology, rolling steel plate after complete need to be cooling through controlling, and to control the phase transition process of ferrous materials in cooling procedure, obtains the phase-change organization and the excellent mechanical property that need.Controlling cooling is the most important means that milling train improves the quality of products, develops high value added product.
Controlled cooling system system forms by controlling cooling device, water treatment system and controlling cooling computer system three parts.Controlling cooling device is comprised of the cold main equipment of control, supply channel, elevated tank and circular water treating system.Control cold main equipment and be positioned on strip-mill strip runout table afterwards, coordinate layout with roller-way, formed by collector (upper header, lower collector pipe), side-spraying device, Width adjusting device, end blow device and corresponding roller-way etc.Collector is the elementary cell of controlling cooling device, and normally the cross section is the pipe of circle or rectangle, is arranged in parallel with roller-way, and length is suitable with roller-way length.Collector one end water inlet, other end sealing; Also have plenty of sealed at both ends, middle water inlet.Delivery port circular or slit shape is arranged on collector, and cooling water is flowed out by delivery port, flows to surface of steel plate.The main difference of multi-form Controlled cooling system is rested the head on formula, water curtain style etc. at upper header device such as U-shaped tubular type, water.At present, which kind of form no matter upper header be, all to be arranged in parallel in upper surface of steel plate, namely be sprayed at water column above steel billet or water smoke, cascade is all straight line and parallel, as shown in Figure 1 (in Fig. 1, direction shown in arrow is the throughput direction of steel plate) all delivery ports all are perpendicular to the steel plate traffic direction, and each delivery port all is parallel to each other.Front-seat cooling water is under the stopping of the cooling waterwall of rear row, front-seat middle part cooling water needs to flow out from the both sides of steel plate, thereby form a large amount of stacks of different temperatures cooling water in the limit of steel plate section, be unfavorable for that between two collectors, the residual water on steel plate is removed fast, reduced heat exchange efficiency, the cooling water inflow of limit section strengthens, cause limit section cooling faster than the middle part, the horizontal inhomogeneous cooling of steel plate is even, finally causes lateral performance difference to exceed customer requirements, has also wasted the water yield simultaneously.For addressing these problems, adopt all multi-form edge-masking technology in production, be used for improving the cooling water inflow of limit section.But all because these devices under mal-condition, can not fine use and lie on the table, do not reach expected effect.
Therefore, need to improve existing cooling device, make it more be conducive to removing fast of remaining cooling water between two collectors, to improve the transverse regularity of heat exchange efficiency and heat exchange, improve the strip quality, simultaneously, also reduce the consumption of cooling water.
Summary of the invention
In view of this, the invention provides the steel plate homogeneous cooling apparatus that a kind of delivery port curve is arranged, this device sprays the curve waterwall by collector, and the residual water on steel plate can be removed by fast speed, reaches the purpose that improves cooling effect, the cooling uniformity and reduce water consumption.
The steel plate homogeneous cooling apparatus that delivery port curve of the present invention is arranged, comprise upper header device, injection direction is set on described upper header device covers many discharges mouth of a river of steel plate width perpendicular to steel plate and spray regime, the mouths of a river of discharging are set up in parallel along the steel plate throughput direction more, the curved distribution of the projection of described delivery port on steel plate, the opening direction of curve is identical with the throughput direction of steel plate.
Further, vertical as X-axis take steel plate, the center line of steel plate throughput direction is Y-axis, sets up plane coordinate system, the distribution curve equation of described delivery port is: y=a+bx
2+ cx
4, wherein, a, b and c are constant, b ≠ 0, c ≠ 0;
Further, described upper header device is U-shaped tubular type upper header device, comprise upper header and the many groups outlet pipe that axially is set up in parallel along upper header, described outlet pipe comprises the inverted-loop tube that stretches to respectively the upper header both sides, and described upper header is the structure that the curve pipe forms outlet curved distribution of projection on steel plate of inverted-loop tube;
Further, described upper header device is U-shaped tubular type upper header device, comprise upper header and the many groups outlet pipe that axially is set up in parallel along upper header, described outlet pipe comprises the inverted-loop tube that stretches to respectively the upper header both sides, and the inverted-loop tube outlet that every group of outlet pipe is corresponding and the distance between upper header increase the structure of the outlet curved distribution of projection on steel plate that forms inverted-loop tube successively from the upper header mid point to two ends;
Further, the outlet of adjacent two row's inverted-loop tubes shifts to install on the steel plate throughput direction;
Further, described upper header device is the water curtain style upper header device, comprises water tank and flow-guiding channel, below described water tank, the curve hole slot is set, and described flow-guiding channel is shaped form and is plugged in the curve hole slot.
Beneficial effect of the present invention: the steel plate homogeneous cooling apparatus that delivery port curve of the present invention is arranged has following advantage:
1) form of the delivery port of upper header is changed into curve form by form of straight lines, allow the old cooling water that has absorbed certain heat leave fast upper surface of steel plate along the tangential direction of the cooling waterwall of rear row, the residual quantity of reduction limit section cooling water, being beneficial to simultaneously the new cooling water of rear row contacts more fully with steel plate, thereby improve the vertical and horizontal cooling effect of steel plate, cooling transverse regularity is high, cooling velocity is fast longitudinally, and water consumption is few;
2) curve satisfies function y=a+bx
2+ cx
4, take full advantage of the characteristic in the upper header device water spray flow field that forms, more be conducive between two collectors the residual water on steel plate and removed by fast speed;
3) utilize the upper header device of existing various structures form, can realize easily purpose of the present invention, improvement cost is low, and is practical.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the perspective view of delivery port on steel plate of two kinds of type of arrangement in prior art;
Fig. 2 is the perspective view of delivery port on steel plate of two kinds of type of arrangement of the present invention;
Fig. 3 is the structural representation of U-shaped tubular type upper header device;
Fig. 4 is the structural representation of water curtain style upper header device.
The specific embodiment
the present invention is described in detail (shown in Fig. 2 light plate 1 upper arrow, direction is the steel plate throughput direction) below with reference to accompanying drawing 2-4: the steel plate homogeneous cooling apparatus that the delivery port curve of the present embodiment is arranged, comprise upper header device, injection direction is set on described upper header device covers many discharges mouth of a river of steel plate width perpendicular to steel plate 1 and spray regime, the mouths of a river of discharging are set up in parallel along the steel plate throughput direction more, in prior art, the mouths of a river of discharging are straight line row more, the curved distribution of the projection of every discharge mouth of a river on steel plate in the present embodiment, the opening direction of curve is identical with the throughput direction of steel plate 1.This arrangement has utilized the delivery port water spray flow field characteristic that forms, and more being conducive between two collectors the residual water on steel plate can be removed by fast speed, effectively improves cooling effect, the cooling uniformity and reduces water consumption.
As further improvement in the technical proposal, vertical as X-axis take steel plate 1, the center line of steel plate 1 throughput direction is Y-axis, sets up plane coordinate system (as shown in Figure 2), the distribution curve function of described delivery port is: y=a+bx
2+ cx
4, obtain after analyzing best Flow Field Distribution, utilize more fully the characteristic in the upper header device water spray flow field that forms, wherein, a, b and c are constant, b ≠ 0, c ≠ 0, coefficient a, b, c can determine according to factors such as concrete engineering object light plate speed of service intervals.
It is the upper header device of water column form for spray pattern, the present embodiment applies the present invention to existing U-shaped tubular type upper header device, this device comprises upper header 2 and the many groups outlet pipe that axially is set up in parallel along upper header 2, described outlet pipe comprise stretch to respectively upper header 2 both sides inverted-loop tube 3(as shown in Figure 3), existing upper header 2 is linear, the present embodiment adopts shaped form upper header 2, form the structure of outlet curved distribution of projection on steel plate 1 of inverted-loop tube 3, transform simple and convenient.Certainly, increase successively to two ends from upper header 2 mid points by the distance between the inverted-loop tube that every group of outlet pipe is corresponding 3 outlets and upper header 2, also can form the structure of outlet curved distribution of projection on steel plate 1 of inverted-loop tube 3, can realize purpose of the present invention equally.
Upper header device as the water column form, the outlet of adjacent two row's inverted-loop tubes 3 can be shifted to install on steel plate 1 throughput direction, more even to the covering of steel plate after making like this water column be ejected on steel plate, more be conducive to the evenly cooling of steel plate, but for the densely covered upper header device of delivery port, also can adopt with adjacent two row inverted-loop tubes 3 outlet on steel plate 1 throughput direction over against arrangement, more be convenient to arrange, and owing to gathering, very little on the covering uniformity impact of steel plate over against the mode of arranging.
It is the upper header device of water curtain style for spray pattern, can apply the present invention to equally existing water curtain style upper header device, this device comprises water tank 4 and flow-guiding channel 5, described water tank 4 belows arrange the curve hole slot, described flow-guiding channel 5 is for shaped form and be plugged on curve hole slot interior (as shown in Figure 4), simple in structure, transformation is convenient.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (2)
1. steel plate homogeneous cooling apparatus that the delivery port curve is arranged, comprise upper header device, injection direction is set on described upper header device covers many discharges mouth of a river of steel plate width perpendicular to steel plate (1) and spray regime, the mouths of a river of discharging are set up in parallel along the steel plate throughput direction more, it is characterized in that: the curved distribution of the projection of described delivery port on steel plate, the opening direction of curve is identical with the throughput direction of steel plate (1); Vertical as X-axis take steel plate (1), the center line of steel plate (1) throughput direction is Y-axis, sets up plane coordinate system, the distribution curve function of described delivery port is: y=a+bx
2+ cx
4, wherein, a, b and c are constant, b ≠ 0, c ≠ 0.
2. the delivery port curve according to claim 1 steel plate homogeneous cooling apparatus of arranging, it is characterized in that: described upper header device is U-shaped tubular type upper header device, comprise upper header (2) and the many groups outlet pipe that axially is set up in parallel along upper header (2), described outlet pipe comprises the inverted-loop tube (3) that stretches to respectively upper header (2) both sides, described upper header (2) is the curve pipe, forms the outlet of inverted-loop tube (3) in the structure of the upper curved distribution of projection of steel plate (1).
3. the delivery port curve according to claim 1 steel plate homogeneous cooling apparatus of arranging, it is characterized in that: described upper header device is U-shaped tubular type upper header device, comprise upper header (2) and the many groups outlet pipe that axially is set up in parallel along upper header (2), described outlet pipe comprises the inverted-loop tube (3) that stretches to respectively upper header (2) both sides, every group of corresponding inverted-loop tube (3) outlet and distance between upper header (2) of outlet pipe increases the outlet of formation inverted-loop tube (3) successively in the structure of the upper curved distribution of projection of steel plate (1) to two ends from upper header (2) mid point.
4. the according to claim 2 or 3 described delivery port curves steel plate homogeneous cooling apparatus of arranging, it is characterized in that: the outlets of adjacent two row's inverted-loop tubes (3) shift to install on steel plate (1) throughput direction.
5. the delivery port curve according to claim 1 steel plate homogeneous cooling apparatus of arranging, it is characterized in that: described upper header device is the water curtain style upper header device, comprise water tank (4) and flow-guiding channel (5), described water tank (4) below arranges the curve hole slot, and described flow-guiding channel (5) is shaped form and is plugged in the curve hole slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110247294 CN102284521B (en) | 2011-08-24 | 2011-08-24 | Steel plate uniform-cooling device with water outlets arranged in shape of curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110247294 CN102284521B (en) | 2011-08-24 | 2011-08-24 | Steel plate uniform-cooling device with water outlets arranged in shape of curve |
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| Publication Number | Publication Date |
|---|---|
| CN102284521A CN102284521A (en) | 2011-12-21 |
| CN102284521B true CN102284521B (en) | 2013-05-15 |
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| CN 201110247294 Expired - Fee Related CN102284521B (en) | 2011-08-24 | 2011-08-24 | Steel plate uniform-cooling device with water outlets arranged in shape of curve |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174670B (en) * | 2014-09-12 | 2016-02-24 | 中冶赛迪工程技术股份有限公司 | The wide cooling manifold to changeable flow |
| CN104772353B (en) * | 2015-04-09 | 2017-07-28 | 中冶赛迪工程技术股份有限公司 | Hot rolling control cold water spray header device and its cooling means |
| CN109174980B (en) * | 2018-08-23 | 2019-12-31 | 武汉钢铁有限公司 | Steel strip cooling spray header between rolling mill frames and mounting structure thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE502004005051D1 (en) * | 2004-04-06 | 2007-10-31 | Siemens Ag | METHOD OF MANUFACTURING A METAL |
| CN101134998A (en) * | 2006-08-31 | 2008-03-05 | 宝山钢铁股份有限公司 | Control system and method for accelerating cooling process |
| FI20070622L (en) * | 2007-08-17 | 2009-04-15 | Outokumpu Oy | Method and device for checking evenness during cooling of a strip made of stainless steel |
| CN101934295A (en) * | 2009-06-30 | 2011-01-05 | 宝山钢铁股份有限公司 | Pre-calculation method for controlled cooling of thick plate after rolling |
| CN101972780B (en) * | 2010-11-11 | 2013-06-26 | 攀钢集团钢铁钒钛股份有限公司 | Hot rolling titanium casting blank temperature control method |
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