CN101851700B - Online water cooling method and equipment - Google Patents
Online water cooling method and equipment Download PDFInfo
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- CN101851700B CN101851700B CN200910197056XA CN200910197056A CN101851700B CN 101851700 B CN101851700 B CN 101851700B CN 200910197056X A CN200910197056X A CN 200910197056XA CN 200910197056 A CN200910197056 A CN 200910197056A CN 101851700 B CN101851700 B CN 101851700B
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- inside groove
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Abstract
The invention relates to an online water cooling method and online water cooling equipment. The method comprises that: a water injection system pumps water out of an outer groove of the online water cooling equipment and injects the water into an inner groove to make a water level in the inner groove higher than the upper surface of a roller way; when the water level in the inner groove is higher than a material inlet and a material outlet above the inner groove, the water overflows into the inner groove from the material inlet and the material outlet; and a cooled element enters the inner groove from the material inlet under the drive of the roller way, runs through the water and finally is conveyed out of the inner groove from the material outlet to finish a water cooling process. Compared with the prior art, the method has the advantages of realizing the uniform cooling of the cooled element and fulfilling the aim of making substantially identical the cooling intensity of the upper and lower surfaces of the cooled element; and the equipment has the characteristics of simple structure, less investment and the capability of fulfilling the aim of improving the cooling intensity by arranging a stirring device or a water spraying tube in a water cooling area.
Description
Technical field
The present invention relates to thermal treatment cooling field, especially relate to a kind of online water-cooling method and equipment worn.
Background technology
Thermal treatment is meant cools off the steel at the austenite structure state with suitable speed, obtain the process of intended tissue and performance.For save energy and the mechanical property that improves after steel roll, roll the online refrigerative process quilt that carries out in back and adopt.
Through the prior art literature search is found, Liu Xianghua etc. Ultrafast cooling device and the application in new product development thereof. iron and steel .Vol.39.No.82004:P71-74. has introduced a kind of strip steel Ultrafast cooling device of succeeding in developing recently abroad, this device sprays to the rolled piece surface with the water that has pressure from the aperture that gathers, its speed of cooling can reach 300 ℃/more than the s.Realize that supper-fast refrigerative mechanism is by the large-area steam film that breaks up between water coolant and rolled piece of high pressure water, improve the exchange capability of heat between water coolant and the rolled piece.This method cooling efficiency is significantly improved than traditional laminar flow cooling.
Pipe laminar flow and the Water Curtain Cooling Device that widely uses is that water coolant is flowed out under the pressure effect that elevated tank produces naturally at present, forms solid stream of water.After this current are fallen on the rolled piece continuously and stably, momentum is converted into surging force, break up the steam film between rolled piece and the water coolant, improve cooling efficiency, the problem of this type of cooling is, no matter is pipe laminar flow or water curtain, its scope of breaking up steam film all is very limited, only limit to leave this zone in the regional area under solid stream of water, on the interface between rolled piece and the water coolant, still have large-area steam film to exist.Laminar flow cooling, water curtain cool off, still supper-fast method of cooling all exists above the rolled piece and following cooling intensity and the inconsistent problem of cooling uniformity, its reason is all can form certain thickness ponding on the surface in the cooling of the upper surface shower cooling of rolled piece or laminar flow, can exert an influence when being in hot stage on the rolled piece surface steam film of rate of cooling of this lamination water.And the steel lower surface can only rely on the mode of injection to obtain cooling, this shower cooling mode is to arrange with the form of dot matrix, so on cooling uniformity and cooling intensity, all be difficult to reach consistent the particularly complex-shaped more difficult consistence that reaches each face cooling intensity of rolled piece cooling with upper surface.
Summary of the invention
Purpose of the present invention is exactly that a kind of simple in structure, online water-cooling method and equipment worn that cooling intensity is high is provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of online water-cooling method of wearing, it is characterized in that, this method is extracted the water in the online water cooling equipment water jacket out and the injection inside groove by waterflood system, make the inside groove water level be higher than the roller-way upper surface, when the inside groove water level was higher than opening for feed on the groove and discharge port, water overflowed inside groove by opening for feed and discharge port, cooled piece enters inside groove by opening for feed under the driving of roller-way, and in water, pass, send out inside groove by discharge port at last, finish the water cooling process of wearing.
The water level of described inside groove is higher than roller-way upper surface 20-800mm.
Described cooled piece comprises iron and steel, non-ferrous metal, nonmetallic sheet material or section bar.。
A kind of online water cooling equipment, it is characterized in that, this equipment comprises waterflood system, water jacket, inside groove, blow device, machinery is swept the water device, opening for feed, discharge port, roller-way, interior trough floor, axle envelope and inside groove side plate, described waterflood system is located at a side of device, described water jacket is a water storage unit, be located at the inside groove bottom or take the separate mode setting with inside groove, described inside groove is by interior trough floor, the inside groove side plate, opening for feed and discharge port are formed, described blow device and machinery are swept the outside that the water device is located at opening for feed and discharge port, described roller-way is located at the inside of inside groove, cooled piece is set on the roller-way, and described axle envelope connects roller-way and inside groove.
Described waterflood system is made up of pump and pipeline, and water is injected inside groove by extracting out in the water jacket.
Described machinery is swept the overflow water outlet that the water device stops opening for feed and discharge port, reduces cooled piece upper surface ponding thickness simultaneously.
Described blow device will purge clean through the cooled piece upper surface ponding that machinery is swept after the water device is handled.
The top of described roller-way and bottom can also be provided with whipping appts or sparge pipe, and the flow velocity that increases water is to increase cooling intensity.
Compared with prior art, the present invention can realize the even cooling of cooled piece, especially can realize above the cooled piece and the essentially identical target of following cooling intensity, compare with the laminar flow method of cooling, the device structure that method of the present invention is made is simple, investment is low, can be by being provided with and stirring or the method for hydrojet realizes improving the purpose of cooling intensity wearing the water cooling zone.
Description of drawings
Fig. 1 is the structural representation of online water cooling equipment;
Fig. 2 is the structural representation of A-A section among Fig. 1.
1 sweeps water device, 7 for blow device, 6 for machinery for cooled piece, 5 for inside groove, 4 for water jacket, 3 for waterflood system, 2 and is the inside groove side plate for axle envelope, 12 for interior trough floor, 11 for roller-way, 10 for discharge port, 9 for opening for feed, 8 among the figure.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
The product object of this instance processes is the thick Q235A steel plate of wide 1500mm, thick 20mm, requires to obtain the littler pearlitic structure of sheet spacing by suitably cooling off after rolling, and its yield strength is brought up to more than the 300MPa by 235MPa.
Online water cooling equipment structure as shown in Figure 1, the sectional view of A-A face is swept water device 6, opening for feed 7, discharge port 8, roller-way 9, interior trough floor 10, axle envelope 11, inside groove side plate 12 etc. by waterflood system 1, water jacket 2, inside groove 3, cooled piece 4, blow device 5, machinery and is formed as shown in Figure 2.Waterflood system 1 is made up of pump and pipeline, and its effect is to be drawn water by water jacket 2 to be injected in the inside groove 3.Water jacket 2 is a container that is filled with water, and is arranged on the bottom of inside groove 3, for inside groove 3 supplies water, collects the water that inside groove 3 overflows simultaneously.Inside groove 3 is made up of with discharge port 8, interior trough floor 10 opening for feed 7 at the inside groove side plate 12 that is arranged on both sides, two ends.In the outside of opening for feed 7 and discharge port 8 blow device 5 is set all and machinery is swept water device 6, cooled piece 4 is a steel plate.
Working process of the present invention is: waterflood system 1 is extracted out water and is injected into inside groove 3 by water jacket 2, make inside groove 3 water levels be higher than roller-way upper surface 200mm, and water overflows inside groove 3 by opening for feed 7 and discharge port 8.Steel plate 4 enters inside groove 3 by opening for feed 7 under the driving of roller-way 9, and passes in water, is gone out inside groove 3 by discharge port 8 by transmission at last, finishes the water cooling process of wearing.The width of water cooling equipment is greater than steel plate width, and the water distance of wearing of steel plate is determined in the speed of the thickness of considering steel plate, roller-way with after to factors such as mechanical property requirements.
In wearing the water cooling process, because the liquid level of inside groove 3 is higher than the upper surface 180mm of steel plate 4, water can flow to the outside certain distance of inside groove 3 along the upper surface of steel plate 4, cause the upper surface of steel plate 4 longer cooling time cooling time than lower surface, cause upper and lower surface cool inconsistent, sweep water device 6 methods and address this problem so take all to be provided with blow device 5 and machinery in the outside of opening for feed 7 and discharge port 8.The effect that machinery is swept water device 6 is to stop that the water by opening for feed 7 and discharge port 8 overflows, and plays the effect of the upper surface ponding thickness that reduces steel plate 4 simultaneously.The effect of blow device 5 is that the ponding that will sweep the upper surface of the steel plate 4 after water device 6 is handled through machinery purges clean.
Wherein: the water-injection capability of waterflood system 1 should be provided with according to the degree of depth that steel plate 4 is required be embedded in and the installation of water of inside groove, realizes the water yield that volume of water input overflows greater than opening for feed 7 and discharge port 8 from inside groove 3 both sides.
The treating product object of this example is H shaped steel (the high 300mm of leg), requires the online quench cooled of carrying out after the finish rolling, obtains martensite and bainite structure.Online water cooling equipment by waterflood system, water jacket, inside groove, blow device, machinery sweep water device, opening for feed, discharge port, roller-way, interior trough floor, axle envelope, the inside groove side plate is formed.Waterflood system is made up of pump and pipeline, and its effect is to be drawn water by water jacket to be injected in the inside groove.Water jacket is a container that is filled with water, and adopts the separate mode setting with inside groove, for inside groove supplies water, collects the water that inside groove overflows simultaneously.Inside groove is made up of opening for feed, discharge port and the interior trough floor at the inside groove side plate that is arranged on both sides, two ends.In the outside of opening for feed and discharge port blow device is set all and machinery is swept the water device.
Working process of the present invention is: waterflood system is extracted out water and is injected into inside groove by water jacket, make the inside groove water level be higher than roller-way upper surface 500mm, and water overflows inside groove by opening for feed and discharge port then.H shaped steel enters inside groove by opening for feed under the driving of roller-way, and passes in water, is gone out inside groove by discharge port by transmission at last, finishes the water cooling process of wearing.In wearing the water cooling process, because the liquid level of inside groove is higher than the leg height of H shaped steel, when H shaped steel turnover inside groove, water can flow along the groove of H shaped steel, cause the portion of H shaped steel longer cooling time cooling time than the bottom, cause upper and lower part cooling inconsistent, sweep the water installation method and address this problem so take all to be provided with blow device and machinery in the outside of opening for feed and discharge port.The effect that machinery is swept the water device is to stop that the water by opening for feed and discharge port overflows, and plays the effect that reduces by the upper surface ponding thickness of H shaped steel simultaneously.The effect of blow device is that the ponding that will sweep the upper surface of the H shaped steel after the water device is handled through machinery purges clean.Can take to increase the flow velocity of water in order to increase cooling intensity, to reach the purpose that increases cooling intensity in the top of the roller-way of inside groove and method that the bottom is provided with whipping appts or sparge pipe.
Compared with prior art, each face that can realize H shaped steel all obtains uniform hardening cooling purpose.The adjustment of the method realization quench cooled intensity of stirring or hydrojet is set by the zone of passing through at the H of water cooling equipment shaped steel, upper and lower.
The treating product object of this example is the 4Cr13 steel plate of wide 1000mm, thick 50mm, requires the online quench cooled of carrying out after the finish rolling, obtains martensite and bainite structure.Realize online water cooling-air cooling (self-tempering)-wear water cooling-air cooling (self-tempering)-the wear control quench cooled of water cooling-air cooling (self-tempering) of wearing of steel plate by the method for on production line, taking to be provided with at interval 3 water cooling equipments, arrange the roller-way of certain-length between per two water cooling equipments, steel are realized air cooling (self-tempering) on this roller-way.
Online water cooling equipment by waterflood system, water jacket, inside groove, blow device, machinery sweep water device, opening for feed, discharge port, roller-way, interior trough floor, axle envelope, the inside groove side plate is formed.Waterflood system is made up of pump and pipeline, and its effect is to be drawn water by water jacket to be injected in the inside groove.Water jacket is a container that is filled with water, and is arranged on the bottom of inside groove, for inside groove supplies water, collects the water that inside groove overflows simultaneously.Inside groove is made up of with discharge port, interior trough floor the opening for feed at the inside groove side plate that is arranged on both sides, two ends.In the outside of opening for feed and discharge port blow device is set all and machinery is swept the water device.
Working process of the present invention is: waterflood system is extracted out water and is injected into inside groove by water jacket, make the inside groove water level be higher than roller-way upper surface 350mm, and water overflows inside groove by opening for feed and discharge port then.Steel plate enters inside groove by opening for feed under the driving of roller-way, and passes in water, is gone out inside groove by discharge port by transmission at last, finishes the water cooling process of wearing.
In wearing the water cooling process, because the liquid level of inside groove is higher than the upper surface of steel plate, water can flow to the outside certain distance of inside groove along the upper surface of steel plate, cause the upper surface of steel plate longer cooling time cooling time than lower surface, cause upper and lower surface cool inconsistent, sweep the water installation method and address this problem so take all to be provided with blow device and machinery in the outside of opening for feed and discharging.The effect that machinery is swept the water device is to stop that the water by opening for feed and discharge port overflows, and plays the effect of the upper surface ponding thickness that reduces steel plate simultaneously.The effect of blow device is that the upper surface ponding that will sweep the steel plate after the water device is handled through machinery purges clean.Increase the flow velocity of water in order to increase method that cooling intensity is provided with whipping appts or sparge pipe in the top and the bottom of inside groove roller-way, to reach the purpose that increases cooling intensity.
Compared with prior art, can realize steel plate uniform hardening cooling all around purpose.By wearing water cooling+air cooling+wear purpose that process combination such as water cooling+air cooling have realized the control quench cooled in thermal treatment field.By the purpose that whipping appts has realized accelerating speed of cooling being set wearing aqua region.
A kind of online water cooling equipment, this equipment comprises waterflood system, water jacket, inside groove, blow device, machinery is swept the water device, opening for feed, discharge port, roller-way, interior trough floor, axle envelope and inside groove side plate, waterflood system is located at a side of device, water jacket is a water storage unit, be located at the inside groove bottom, inside groove is by interior trough floor, the inside groove side plate, opening for feed and discharge port are formed, blow device and machinery are swept the outside that the water device is located at opening for feed and discharge port, machinery is swept the overflow water outlet that the water device stops opening for feed and discharge port, reduce the steel plate upper surface ponding thickness that is cooled simultaneously, blow device will purge clean through the steel plate upper surface ponding that is cooled that machinery is swept after the water device is handled, roller-way is located at the inside of inside groove, place the steel plate that is cooled on the roller-way, the axle envelope connects roller-way and inside groove.
When using this equipment, water in the online water cooling equipment water jacket is extracted out and the injection inside groove by waterflood system, make the inside groove water level be higher than roller-way upper surface 20mm, when the inside groove water level is higher than opening for feed on the groove and discharge port, water overflows inside groove by opening for feed and discharge port, and the steel plate that is cooled enters inside groove by opening for feed under the driving of roller-way, and passes in water, send out inside groove by discharge port at last, finish the water cooling process of wearing.
A kind of online water cooling equipment, this equipment comprises waterflood system, water jacket, inside groove, blow device, machinery is swept the water device, opening for feed, discharge port, roller-way, interior trough floor, axle envelope and inside groove side plate, waterflood system is located at a side of device, water jacket is a water storage unit, be located at the inside groove bottom, inside groove is by interior trough floor, the inside groove side plate, opening for feed and discharge port are formed, blow device and machinery are swept the outside that the water device is located at opening for feed and discharge port, machinery is swept the overflow water outlet that the water device stops opening for feed and discharge port, reduce the steel plate upper surface ponding thickness that is cooled simultaneously, blow device will purge clean through the steel plate upper surface ponding that is cooled that machinery is swept after the water device is handled, roller-way is located at the inside of inside groove, place the steel plate that is cooled on the roller-way, the axle envelope connects roller-way and inside groove.
When using this equipment, water in the online water cooling equipment water jacket is extracted out and the injection inside groove by waterflood system, make the inside groove water level be higher than roller-way upper surface 800mm, when the inside groove water level is higher than opening for feed on the groove and discharge port, water overflows inside groove by opening for feed and discharge port, and the steel plate that is cooled enters inside groove by opening for feed under the driving of roller-way, and passes in water, send out inside groove by discharge port at last, finish the water cooling process of wearing.
Claims (7)
1. online water-cooling method of wearing, it is characterized in that, this method is extracted the water in the online water cooling equipment water jacket out and the injection inside groove by waterflood system, make the inside groove water level be higher than the roller-way upper surface, when the inside groove water level was higher than opening for feed on the groove and discharge port, water overflowed inside groove by opening for feed and discharge port, cooled piece enters inside groove by opening for feed under the driving of roller-way, and in water, pass, send out inside groove by discharge port at last, finish the water cooling process of wearing.
2. a kind of online water-cooling method of wearing according to claim 1 is characterized in that the water level of described inside groove is higher than roller-way upper surface 20-800mm.
3. a kind of online water-cooling method of wearing according to claim 1 is characterized in that described cooled piece comprises iron and steel, non-ferrous metal, nonmetallic sheet material or section bar.
4. online water cooling equipment, it is characterized in that, this equipment comprises waterflood system, water jacket, inside groove, blow device, machinery is swept the water device, opening for feed, discharge port, roller-way, interior trough floor, axle envelope and inside groove side plate, described waterflood system is located at a side of device, described water jacket is a water storage unit, be located at the inside groove bottom or take the separate mode setting with inside groove, described inside groove is by interior trough floor, the inside groove side plate, opening for feed and discharge port are formed, described blow device and machinery are swept the outside that the water device is located at opening for feed and discharge port, described roller-way is located at the inside of inside groove, place cooled piece on the roller-way, described axle envelope connects roller-way and inside groove.
5. a kind of online water cooling equipment according to claim 4 is characterized in that described machinery is swept the overflow water outlet that the water device stops opening for feed and discharge port, reduces cooled piece upper surface ponding thickness simultaneously.
6. a kind of online water cooling equipment according to claim 4 is characterized in that, described blow device will purge clean through the cooled piece upper surface ponding that machinery is swept after the water device is handled.
7. a kind of online water cooling equipment according to claim 4 is characterized in that the top of described roller-way and bottom also are provided with whipping appts or sparge pipe, and the flow velocity that increases water is to increase cooling intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910197056XA CN101851700B (en) | 2009-10-13 | 2009-10-13 | Online water cooling method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910197056XA CN101851700B (en) | 2009-10-13 | 2009-10-13 | Online water cooling method and equipment |
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| Publication Number | Publication Date |
|---|---|
| CN101851700A CN101851700A (en) | 2010-10-06 |
| CN101851700B true CN101851700B (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910197056XA Expired - Fee Related CN101851700B (en) | 2009-10-13 | 2009-10-13 | Online water cooling method and equipment |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984091A (en) * | 2010-11-26 | 2011-03-09 | 上海交通大学 | Online time-control temperature-control water quenching device |
| CN102337385B (en) * | 2011-09-14 | 2013-02-06 | 上海交通大学 | Multi-cycle quenching-partitioning-tempering (M Q-P-T) technique |
| CN102965480B (en) * | 2012-11-16 | 2014-03-05 | 上海交通大学 | Method and equipment for quenching and cooling thick-walled steel pipe |
| CN103397148B (en) * | 2013-07-30 | 2014-12-24 | 上海交通大学 | Method for formulating water-air alternate time-controlled quenching process |
| CN104846166A (en) * | 2015-06-08 | 2015-08-19 | 中冶赛迪工程技术股份有限公司 | On-line continuous-casting billet quenching equipment and process thereof |
| CN107164622B (en) * | 2017-06-06 | 2019-08-16 | 广东广铝铝型材有限公司 | Press quenching equipment and product production line |
| CN107988468A (en) * | 2018-01-23 | 2018-05-04 | 北京建通鸿翔科技有限公司 | A kind of device suitable for isothermal hardening |
| CN108971244A (en) * | 2018-09-25 | 2018-12-11 | 芜湖新兴铸管有限责任公司 | Rolled steel cooling means |
| CN113025806A (en) * | 2021-03-09 | 2021-06-25 | 张志玲 | Dual-mode continuous cooling device for heat treatment of spherical materials |
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2009
- 2009-10-13 CN CN200910197056XA patent/CN101851700B/en not_active Expired - Fee Related
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| CN101851700A (en) | 2010-10-06 |
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Granted publication date: 20111012 Termination date: 20171013 |