CN102266872B - Steel tube cooling device - Google Patents
Steel tube cooling device Download PDFInfo
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- CN102266872B CN102266872B CN 201110212098 CN201110212098A CN102266872B CN 102266872 B CN102266872 B CN 102266872B CN 201110212098 CN201110212098 CN 201110212098 CN 201110212098 A CN201110212098 A CN 201110212098A CN 102266872 B CN102266872 B CN 102266872B
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Abstract
The invention discloses a steel tube cooling device which comprises cooling water tanks respectively arranged between two adjacent conveying rollers, wherein each of the cooling water tanks comprises subsidiary water injecting boxes and a water inlet pipe; the subsidiary water injecting boxes are serially connected with each other through a connecting water pipe and are parallel to each other; the water inlet pipe is connected to the connecting water pipe and an external water supply pipe; each of the subsidiary water injecting boxes comprises an outer frame, an inner circular cavity and nozzles; the inner circular cavity is arranged in the outer frame; the nozzles are distributed on the inner peripheral wall of the inner circular cavity along the periphery of the inner circular cavity; the water spraying directions of the nozzles are vertical to the axis of the inner circular cavity; and the distances between the extending lines of the water spraying directions of the nozzles and the axis of the inner circular cavity are equal to each other and are less than or equal to the radius of a to-be-cooled steel tube. The steel tube cooling device provided by the invention can be used for greatly relieving and even eliminating the water retention problem of the head and tail parts of the steel tube in the running process of the steel tube. Clearances left between the serially connected subsidiary water injecting boxes can be used for solving the water storage problem of water sealing rings.
Description
Technical field
The present invention relates to a kind of cooling device, particularly a kind of cooling device for hot finished steel pipe.
Background technology
Traditional ERW welded tube is produced the petroleum pipeline technology of J55 grade of steel for passing through first the ERW high-frequency welding, and weld seam heat treatment is then detected a flaw, car silk, delivery.But because this explained hereafter efficient is low, some Welded Pipe Plant take following technique to improve output for this reason: connect ERW welded tube line, carry out the hot tensile strength tube reducing behind eddy-current heating, hot saw is cut again, then goes up cold bed, last artificial deburring inspection warehouse-in.Though this mode has improved welded tube output greatly, but owing to air cooling after electric induction heats again, cooldown rate is low, causes the final intensity of welded tube will be lower than the intensity of female pipe, obtains the steel pipe of higher-strength such as needs, perhaps add alloying element, perhaps carry out modifier treatment, this dual mode has all improved the production cost of welded tube, and by steel pipe cooling device is set between hot tensile strength reducing mill and cold bed, can effectively accelerate the steel pipe cooldown rate, improve steel strength.
The steel pipe cooling device of domestic application adopts the hydrosphere of sealing to cool off at present, because the thickness effect of hydrosphere self causes cooling water to be deposited on the hydrosphere bottom, the submergence lower nozzle affects circumferential cooling uniformity; The arrangement form of hydrosphere spray nozzle or perpendicular to the steel pipe traffic direction perhaps along steel pipe traffic direction angle of inclination, advances hydropexic problem end to end but all can not effectively solve steel pipe simultaneously, causes the vertical performance difference of steel pipe.
The patent No. is that the Chinese patent of CN201455003U discloses " a kind of device of realizing the seamless pipe controlled rolling and controlled cooling ", its core technology is that the shower that is provided with some spray nozzles evenly arranges the formation cage construction around the water ring axis, spray nozzle axis and vertical line have 5～20 ° of angles, and the spray nozzle incline direction is along the steel pipe direction of advance.Although its type of cooling can effectively avoid the water inlet of steel pipe head to cause delay to a certain extent, can not effectively solve the problem of the slower steel pipe afterbody water inlet of the speed of service.
Therefore, need to be to existing steel pipe cooling device its structure that improves, improve the cooling effectiveness of steel pipe and reduce the production cost of steel pipe, by changing the spray mode of cooling water, avoid steel pipe to advance end to end hydropexic defective also so that steel pipe is circumferential and vertically cooling is more even simultaneously.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of steel pipe cooling device, its not only simple in structure, volume is little, easy installation and removal, and can utilize steel pipe to roll rear waste heat, the process for cooling of rear steel pipe is rolled in control, thereby reach crystal grain thinning, adjust the ratio of component in the metal structure, improve the intensity of steel pipe, reduce the purpose of steel pipe's production cost, and can avoid steel pipe advance end to end hydropexic defective and so that steel pipe circumferentially and vertically cooling is more even.
In order to realize above-mentioned technical purpose, steel pipe cooling device of the present invention comprises the cooling water tank that is separately positioned between the two adjacent rollgangs, described cooling water tank comprises by connecting water pipe and being connected in series and the parallel sub-water spray chamber that is oppositely arranged and the water inlet pipe that links to each other with outside feed pipe with connecting water pipe, described sub-water spray chamber comprises outside framework, place in the outside framework round cavity and along the nozzle of round cavity circumferential arrangement on the round cavity internal perisporium, the water spraying direction of the described nozzle all axis with described round cavity is vertical, and the extension line of all nozzle water spraying directions equates with the distance of described round cavity axis and less than or equal to the radius of steel pipe to be cooled.
Further, also comprise the support that is fixedly connected with described cooling water tank and the lift that is used for the support lifting;
Further, described water inlet pipe links to each other with outside water supply line by hydraulic quick coupler;
Further, be provided with feed water valve before the described water inlet pipe;
Further, be equipped with the steel pipe guider of taper before the described cooling water tank;
Further, described nozzle divides many rows to be installed on the round cavity along described sub-water tank round cavity axis direction;
Further, the water spraying direction of adjacent two row's nozzles is alternately sprayed water along clockwise direction with counterclockwise;
Further, described connecting water pipe is uniform to be arranged between outside framework and the round cavity, and connecting water pipe is positioned at the part of sub-water spray chamber along circumferentially evenly offering leaking hole;
Further, also be provided with multistage cavity body structure between the outside framework of described cooling water tank and the round cavity, described multistage cavity body structure comprise that annular array is arranged between outside framework and the round cavity and with the connecting water pipe steady flow baffle of corresponding setting one by one, and described connecting water pipe is between outside framework and steady flow baffle, three limits of described steady flow baffle all and seamless link between the outside framework are provided with the Way out slit vertical with the round cavity axis between another side and the outside framework.
Steel pipe cooling device of the present invention has following beneficial effect:
1, water spraying direction by nozzle is set to vertical with the axis of round cavity, the water spraying direction that can realize nozzle along the steel pipe traffic direction without inclination, in addition, the extension line of nozzle water spraying direction equates with the distance of round cavity axis and less than or equal to the radius of steel pipe to be cooled, and the fluid of nozzle ejection can cross into the inscribed circle of certain size, the inscribe radius of a circle equals the distance of extension line and the round cavity axis of nozzle water spraying direction, so, just avoided bumping against the phenomenon that causes fluid to spray vertically over against the injection fluid of steel pipe perisporium direction, and the water spraying direction of nozzle is vertical with the steel pipe traffic direction and cross into the inscribed circle of certain size, can not exist to the phenomenon of steel pipe afterbody water filling; In addition, be without the pool in the inscribed circle, can greatly reduce in the steel pipe running since relative motion cause cut the water phenomenon; These all can greatly reduce even stop the water inlet retention problems of steel pipe head and afterbody in the steel pipe running, and the steel pipe speed of service is unrestricted; In addition, every sub-water spray chamber thinner thickness reveals sky between the sub-water spray chamber of series connection, can effectively solve sealing hydrosphere water problem.
2, adjust the center line height of cooling water tank by the different tube diameters that the steel pipe that lift can cool off as required is set, so that steel pipe is positioned at the center of cooling water tank; , hydraulic quick coupler connection water inlet pipe and outside feed pipe can make things convenient for the dismounting of device by being set; Realize that by the switching strategy of feed water valve the continuous unlatching of sub-water spray chamber and interval open, to adapt to the process for cooling requirement of different steel grades; By being set, the steel pipe guider can guarantee that the steel pipe operation is more smooth and easy; Be installed on the round cavity internal perisporium by nozzle is divided into many rows along the axial direction of round cavity, can strengthen the cooling effectiveness of every sub-water spray chamber, reduce the number of cooling water tank and reduce cooling zone length;
3, by with connecting water pipe uniform be arranged between outside framework and the round cavity and along connecting water pipe circumferentially evenly offer leaking hole, can so that fluid enters in the outside framework of sub-water spray chamber equably, can realize the current stabilization first time of fluid around connecting water pipe;
4, by multistage cavity body structure is set, the fluid that flows in the outside framework in the connecting water pipe on the one hand can enter between steady flow baffle and the round cavity, can promote on the other hand the High Rotation Speed of the interior cooling fluid of cavity between round cavity and steady flow baffle, increase the uniformity of circumferential injection, also realized the secondary current stabilization of fluid simultaneously.
Description of drawings
Fig. 1 is the structural representation of steel pipe cooling device embodiment of the present invention;
Fig. 2 a is the structural representation of the cooling water tank of present embodiment;
Fig. 2 b is the front view of the cooling water tank of present embodiment;
Fig. 3 is the arrangement of nozzles mode schematic diagram of present embodiment;
Fig. 4 a is the circumferential cross-section diverse location chilling temperature curve map of the steel pipe of use present embodiment steel pipe cooling device cooling;
Fig. 4 b is the temperature data table among Fig. 4 a.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
As Figure 1-3, structural representation for steel pipe cooling device embodiment of the present invention, steel pipe cooling device of the present invention comprises a plurality of cooling water tanks 1 that are separately positioned between the two adjacent rollgangs 2, and each cooling water tank 1 includes by connecting water pipe 9 and is connected in series and the parallel sub-water spray chamber 7 that is oppositely arranged and the water inlet pipe 10 that links to each other with outside feed pipe with connecting water pipe 9.Described sub-water spray chamber 7 comprises outside framework 11, place in the outside framework 11 round cavity 12 and along the nozzle 13 of round cavity 12 circumferential arrangement on round cavity 12 internal perisporiums, the water spraying direction of the nozzle 13 all axis with round cavity 12 is vertical, and the extension line of all nozzle 13 water spraying directions equates with the distance of round cavity 12 axis and less than or equal to the radius of steel pipe to be cooled.
Water spraying direction by nozzle 13 is set to vertical with the axis of round cavity 12, the water spraying direction that can realize nozzle 13 along steel pipe 4 traffic directions without inclination, in addition, the extension line of nozzle 13 water spraying directions equates with the distance of round cavity 12 axis and less than or equal to the radius of steel pipe 4 to be cooled, the fluid that reaches nozzle ejection can cross into the inscribed circle 14 of certain size, and the radius of inscribed circle 14 equals the distance of extension line and round cavity 12 axis of nozzle 13 water spraying directions.So, just avoided bumping against the phenomenon that causes fluid to spray vertically over against the injection fluid of steel pipe 4 perisporium directions, and the water spraying direction of nozzle 13 is vertical with steel pipe 4 traffic directions and cross into the inscribed circle 14 of certain size, can not exist to the phenomenon of steel pipe 4 afterbody water fillings.In addition, inscribed circle 14 inside are without the pool, can greatly reduce in steel pipe 4 runnings since relative motion cause cut the water phenomenon.These all can greatly reduce even stop the water inlet retention problems of steel pipe head and afterbody in steel pipe 4 runnings, and steel pipe 4 speeds of service are unrestricted; In addition, every sub-water spray chamber 7 thinner thicknesses reveal sky between the sub-water spray chamber 7 of series connection, can effectively solve sealing hydrosphere water problem.
Preferably, the steel pipe cooling device of present embodiment also comprises the support 5 that is fixedly connected with cooling water tank 1 and the lift 6 that is used for support 5 liftings, adjust the center line height of cooling water tank 1 by the different tube diameters that the steel pipe 4 that lift 6 can cool off as required is set, so that steel pipe 4 is positioned at the center of cooling water tank 1;
Preferably, water inlet pipe 10 links to each other with outside water supply line by hydraulic quick coupler, can make things convenient for the dismounting of device;
Preferably, be provided with feed water valve before the water inlet pipe 10, realize that by the switching strategy of feed water valve the continuous unlatching of sub-water spray chamber 7 and interval open, to adapt to the process for cooling requirement of different steel grades;
Preferably, be equipped with the steel pipe guider 3 of taper before the cooling water tank 1, can protect nozzle by steel pipe guider 3 is set, guarantee that steel pipe 4 operations are smooth and easy, can play again the effect of collecting tank;
Preferably, nozzle 13 divides many rows to be installed on the round cavity 12 along the round cavity axis direction, and the water spraying direction of adjacent two row's nozzles replaces water spray with counter clockwise direction along clockwise direction.By being divided into many rows along the axial direction of round cavity 12, nozzle 13 is installed on round cavity 12 internal perisporiums, can strengthen the cooling effectiveness of every sub-water spray chamber 7, reduce the number of cooling water tank 1 and reduce cooling zone length, adjacent two rows' nozzle water spraying direction hockets and can effectively increase the circumferential cooling uniformity of device.
Preferably, connecting water pipe 9 uniform being arranged between outside framework 11 and the round cavity 12, and connecting water pipe is positioned at the part of sub-water spray chamber 7 along circumferentially evenly offering leaking hole; Also be provided with multistage cavity body structure between the outside framework 11 of cooling water tank 1 and the round cavity 12, described multistage cavity body structure comprise that annular array is arranged between outside framework 11 and the round cavity 12 and with connecting water pipe 9 steady flow baffle 8 of corresponding setting one by one, connecting water pipe 9 is between outside framework 11 and steady flow baffle 8, three limits of steady flow baffle 8 all and seamless link between the outside framework 11 are provided with the Way out slit vertical with round cavity 12 axis between another side and the outside framework 11.
By being arranged between outside framework 11 and the round cavity 12 and circumferentially evenly offering leaking hole along connecting water pipe 9 connecting water pipe 9 being uniform, can so that fluid enters in the outside framework 11 of sub-water spray chamber 7 equably, can realize the current stabilization first time of fluid around connecting water pipe 9; By multistage cavity body structure is set, can enter between steady flow baffle 8 and the round cavity 12 from connecting water pipe 9 interior inflow outside frameworks 11 interior fluids on the one hand, can promote on the other hand the High Rotation Speed of cooling fluid in 8 cavitys of round cavity 12 and steady flow baffle, increase the circumferential injection uniformity of device, also realized the secondary current stabilization of fluid simultaneously.
The steel pipe cooling device of present embodiment is installed between hot tensile strength tube reducing the unit last frame and cold bed, red heat steel pipe 4 behind the stretch reducing runs to by the last frame of hot tensile strength tube reducing unit and the rollgang between the cold bed 2 and to accelerate cooling in this steel pipe on-line cooling device after hot saw is cut.And take to arrange to the mode that is certain inclination angle with roller shaft that so that steel pipe 4 is realized self rotation in traveling process, steel pipe circumferentially cooling is more even at this regional steel tube conveying roller bed 2.For J55 level steel pipe, to open cold temperature and be controlled at 800～850 ℃, final cooling temperature is 600～650 ℃, average 10～50 ℃/s of cooldown rate, cooling effectiveness is higher, thereby reaches crystal grain thinning, adjust the ratio of component in the metal structure, improve the intensity of steel pipe and the purpose that reduces production costs.2 of per two rollgangs can be placed 1～2 cooling water tank 1, and cooling zone length also is that total number of sub-water spray chamber 7 can be determined according to manufacturing technique requirent.Also can realize by the switching strategy of feed water valve group continuous unlatching and the interval unlatching of sub-water spray chamber 1 during use, to adapt to the process for cooling requirement of different steel grades.
Below by test the specific embodiment of the present invention is described further.
The size of the inscribed circle 14 that the fluid that at first sprays according to size and the nozzle 13 of the round cavity 12 of the suitable cooling water tank 1 of the choice of diameter of steel pipe 4 to be cooled forms;
Three thermocouples are installed respectively on a kind of periphery wall of J55 steel pipe same place and internal perisporium in uniform way are used for thermometric, thermocouple on the steel pipe internal perisporium be numbered respectively thermoelectricity on a rare occasion, thermocouple two and thermocouple three, corresponding with the thermocouple of internal perisporium thermocouple four, thermocouple five, the thermocouple six of being provided with respectively on the periphery wall of steel pipe;
Adjust the height of lift 6, so that be positioned at the center of cooling water tank 1 during steel pipe to be cooled 4 operation;
Do not rotate by in the situation at steel pipe, shown in Fig. 4 a and Fig. 4 b, as can be known, the steel pipe cooling device of using present embodiment cools off in steel pipe 4 not rotation situations at the temperature drop curve in the cooling procedure for it, the circumferential temperature difference of steel pipe can be controlled in ± 20 ℃ in, have good cooling uniformity.
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 make amendment 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 the claim scope of the present invention.
Claims (9)
1. steel pipe cooling device, comprise the cooling water tank (1) that is separately positioned between the two adjacent rollgangs (2), it is characterized in that: described cooling water tank (1) comprises by connecting water pipe (9) and being connected in series and the parallel sub-water spray chamber (7) that is oppositely arranged and the water inlet pipe (10) that links to each other with outside feed pipe with connecting water pipe (9), described sub-water spray chamber (7) comprises outside framework (11), place in the outside framework (11) round cavity (12) and along the nozzle (13) of round cavity (12) circumferential arrangement on round cavity (12) internal perisporium, the water spraying direction of described nozzle (13) all axis with described round cavity (12) is vertical, and the extension line of all nozzles (13) water spraying direction equates with the distance of described round cavity (12) axis and less than or equal to the radius of steel pipe to be cooled.
2. steel pipe cooling device according to claim 1 is characterized in that: also comprise the support (5) that is fixedly connected with described cooling water tank and the lift (6) that is used for the support lifting.
3. steel pipe cooling device according to claim 1, it is characterized in that: described water inlet pipe (10) links to each other with outside water supply line by hydraulic quick coupler.
4. steel pipe cooling device according to claim 1 is characterized in that: the front feed water valve that is provided with of described water inlet pipe (10).
5. steel pipe cooling device according to claim 1 is characterized in that: the front steel pipe guider (3) that is equipped with taper of described cooling water tank (1).
6. steel pipe cooling device according to claim 1 is characterized in that: described nozzle (13) divides many rows to be installed on the round cavity (12) along the round cavity axis direction.
7. steel pipe cooling device according to claim 6 is characterized in that: the water spraying directions of adjacent two row's nozzles along clockwise direction with water spray alternately counterclockwise.
8. each described steel pipe cooling device according to claim 1-7, it is characterized in that: described connecting water pipe (9) is uniform to be arranged between outside framework (11) and the round cavity (12), and connecting water pipe is positioned at the part of sub-water spray chamber (7) along circumferentially evenly offering leaking hole.
9. steel pipe cooling device according to claim 8, it is characterized in that: also be provided with multistage cavity body structure between the outside framework (11) of described cooling water tank (1) and the round cavity (12), described multistage cavity body structure comprise that annular array is arranged between outside framework (11) and the round cavity (12) and with connecting water pipe (9) steady flow baffle of corresponding setting (8) one by one, and described connecting water pipe (9) is positioned between outside framework (11) and the steady flow baffle (8), three limits of described steady flow baffle (8) all and seamless link between the outside framework (11) are provided with the Way out slit vertical with round cavity (12) axis between another side and the outside framework (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110212098 CN102266872B (en) | 2011-07-27 | 2011-07-27 | Steel tube cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110212098 CN102266872B (en) | 2011-07-27 | 2011-07-27 | Steel tube cooling device |
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| CN102266872A CN102266872A (en) | 2011-12-07 |
| CN102266872B true CN102266872B (en) | 2013-03-20 |
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| CN 201110212098 Active CN102266872B (en) | 2011-07-27 | 2011-07-27 | Steel tube cooling device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264054B (en) * | 2013-06-04 | 2015-04-08 | 中冶赛迪工程技术股份有限公司 | Steel tube even cooling device |
| CN103350297B (en) * | 2013-06-27 | 2015-05-13 | 西安石油大学 | Cooling device and method for butt welding of coiled tubing |
| CN104060060B (en) * | 2014-06-30 | 2016-03-30 | 江阴东邦钢球机械有限公司 | Heat treated refrigerating unit |
| CN106424169B (en) * | 2016-12-19 | 2018-03-06 | 中冶赛迪工程技术股份有限公司 | The steel pipe cooling device of anti-inside pipe wall water inlet |
| CN107841602A (en) * | 2017-11-09 | 2018-03-27 | 新昌县鹏晟机械有限公司 | Steel tube quenching device |
| CN108070701A (en) * | 2018-01-31 | 2018-05-25 | 中国重型机械研究院股份公司 | A kind of annular quenching unit and its application process |
| CN110000239A (en) * | 2019-04-09 | 2019-07-12 | 天津天重中直科技工程有限公司 | A kind of novel circle change side's shaping machine set |
| CN114798747A (en) * | 2022-04-15 | 2022-07-29 | 衡阳华菱钢管有限公司 | Pipe body processing equipment |
| CN115446132B (en) * | 2022-11-03 | 2023-03-28 | 邢台军华机械科技有限公司 | Steel pipe cooling device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03165918A (en) * | 1989-11-24 | 1991-07-17 | Nkk Corp | Cooling device for high cr pipe |
| JP2009006363A (en) * | 2007-06-28 | 2009-01-15 | Nippon Steel Corp | Wire cooling system, apparatus for manufacturing wire using the same and wire cooling method |
| CN100589894C (en) * | 2008-05-09 | 2010-02-17 | 太原市通泽成套设备有限公司 | Forced cooling device of round piece |
| CN201287149Y (en) * | 2008-11-04 | 2009-08-12 | 首钢总公司 | Medium and heavy plate stream cooling manifold device with damper structure |
| CN201455003U (en) * | 2009-08-26 | 2010-05-12 | 鞍钢股份有限公司 | Device for controlling rolling and cooling of seamless pipes |
| CN202162220U (en) * | 2011-07-27 | 2012-03-14 | 中冶赛迪工程技术股份有限公司 | Steel pipe cooling device |
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