CN102266872A - Steel tube cooling device - Google Patents
Steel tube cooling device Download PDFInfo
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- CN102266872A CN102266872A CN2011102120983A CN201110212098A CN102266872A CN 102266872 A CN102266872 A CN 102266872A CN 2011102120983 A CN2011102120983 A CN 2011102120983A CN 201110212098 A CN201110212098 A CN 201110212098A CN 102266872 A CN102266872 A CN 102266872A
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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 that is used for hot finished steel pipe.
Background technology
The petroleum pipeline technology that traditional ERW welded tube is produced the J55 grade of steel is the process ERW of an elder generation 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 technology 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 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 the 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 present domestic application adopts the hydrosphere of sealing to cool off, because the thickness effect of hydrosphere self causes cooling water to be deposited on the hydrosphere bottom, the submergence lower nozzle influences 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, but all can not effectively solve the problem that steel pipe is intake end to end and is detained 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 is provided with 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.Though 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 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, simultaneously by changing the spray mode of cooling water, the defective of avoiding steel pipe to intake end to end being detained also makes steel pipe circumferentially and vertically cooling is more even.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of steel pipe cooling device, it is not only simple in structure, volume is little, easy installation and removal, and can utilize steel pipe to roll the back waste heat, the process for cooling of back 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 the defective that can avoid steel pipe to intake end to end being detained and make 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 comprise by connect that water pipe is connected in series and the parallel sub-water spray chamber that is oppositely arranged and be connected the water inlet pipe that water pipe links to each other with outside feed 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 described nozzle all with the axis normal of described round cavity, and the extension line of all nozzle water spraying directions equates with the distance of described round cavity axis and smaller or equal to the radius of steel pipe to be cooled.
Further, also comprise support of fixedlying connected and the lift that is used for the support lifting with described cooling water tank;
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 connection water pipe is uniform to be arranged between outside framework and the round cavity, and the connection 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 current stabilization dividing plate that is connected the corresponding one by one setting of water pipe, and described connection water pipe is between outside framework and current stabilization dividing plate, three limits of described current stabilization dividing plate all and seamless link between the outside framework are provided with the slit of Way out and round cavity axis normal 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 the axis normal with round cavity, the water spraying direction that can realize nozzle does not have inclination along the steel pipe traffic direction, in addition, the extension line of nozzle water spraying direction equates with the distance of round cavity axis and smaller 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 the 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 have the phenomenon to the water filling of steel pipe afterbody; In addition, for no pool, can significantly reduce in the steel pipe running owing to what relative motion caused and cut the water phenomenon in the inscribed circle; These all can significantly 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, each 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, make steel pipe be positioned at the center of cooling water tank; By the dismounting that hydraulic quick coupler connection water inlet pipe and outside feed pipe can make things convenient for device is set; Realize the continuous unlatching of sub-water spray chamber and unlatching at interval by the switching strategy of feed water valve, 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 each sub-water spray chamber, reduce the number of cooling water tank and reduce cooling zone length;
3, water pipe is uniform to be arranged between outside framework and the round cavity and circumferentially evenly to offer leaking hole along what is connected water pipe by connecting, and can make fluid enter equably in the outside framework of sub-water spray chamber along connecting water pipe all around, can realize the current stabilization first time of fluid;
4, by multistage cavity body structure is set, can enter between current stabilization dividing plate and the round cavity from connecting the fluid that flows in the outside framework in the water pipe on the one hand, can promote the high speed of cooling fluid rotation in the cavity between round cavity and current stabilization dividing plate on the other hand, 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, each cooling water tank 1 include by connect that water pipe 9 is connected in series and the parallel sub-water spray chamber 7 that is oppositely arranged and be connected the water inlet pipe 10 that water pipe 9 links to each other with outside feed pipe.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 nozzle 13 all with the axis normal of round cavity 12, and the extension line of all nozzle 13 water spraying directions equates with the distance of round cavity 12 axis and smaller or equal to the radius of steel pipe to be cooled.
Water spraying direction by nozzle 13 is set to the axis normal with round cavity 12, the water spraying direction that can realize nozzle 13 does not have inclination along steel pipe 4 traffic directions, in addition, the extension line of nozzle 13 water spraying directions equates with the distance of round cavity 12 axis and smaller 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 the 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 have the phenomenon to steel pipe 4 afterbody water fillings.In addition, inscribed circle 14 is inner to be no pool, can significantly reduce in steel pipe 4 runnings owing to what relative motion caused to cut the water phenomenon.These all can significantly 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, each sub-water spray chamber 7 thinner thickness reveals 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 support 5 of fixedlying 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, make steel pipe 4 be 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 the continuous unlatching of sub-water spray chamber 7 and unlatching at interval by the switching strategy of feed water valve, 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 the effect of collecting tank again;
Preferably, nozzle 13 divides along the round cavity axis direction how row is installed on the round cavity 12, and the water spraying direction of adjacent two row's nozzles is alternately sprayed water along clockwise direction with counterclockwise.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 each 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, connect water pipe 9 uniform being arranged between outside framework 11 and the round cavity 12, and the connection 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 the current stabilization dividing plate 8 that is connected the corresponding one by one setting of water pipe 9, connect water pipe 9 between outside framework 11 and current stabilization dividing plate 8, three limits of current stabilization dividing plate 8 all and seamless link between the outside framework 11 are provided with the slit of Way out and round cavity 12 axis normal between another side and the outside framework 11.
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 last frame of hot tensile strength tube reducing unit and the rollgang between the cold bed 2 and to quicken cooling in the online cooling device of this steel pipe after hot saw is cut.And take to arrange to the mode that is certain inclination angle that so that steel pipe 4 is realized self rotation in traveling process, steel pipe circumferentially cooling is more even at this regional steel pipe rollgang 2 with roller shaft.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 the continuous unlatching of sub-water spray chamber 1 and unlatching at interval during use, to adapt to the process for cooling requirement of different steel grades by the switching strategy of feed water valve group.
Below by test the specific embodiment of the present invention is described further.
At first select the size of round cavity 12 of suitable cooling water tank 1 and the size of the inscribed circle 14 that fluid that nozzle 13 sprays forms according to the caliber of steel pipe 4 to be cooled;
On the periphery wall at the same place of a kind of J55 steel pipe and internal perisporium, three thermocouples are installed in uniform way respectively and 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 respectively thermocouple four, thermocouple five, the thermocouple six of being provided with on the periphery wall of steel pipe;
Adjust the height of lift 6, make steel pipe 4 to be cooled be positioned at the center of cooling water tank 1 when moving;
Do not rotate by under 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 under 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 the present invention is had been described in detail with reference to preferred embodiment, 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 the 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) comprise by connect that water pipe (9) is connected in series and the parallel sub-water spray chamber (7) that is oppositely arranged and be connected the water inlet pipe (10) that water pipe (9) links to each other with outside feed pipe, 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 with the axis normal of described round cavity (12), and the extension line of all nozzles (13) water spraying direction equates with the distance of described round cavity (12) axis and smaller 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 support (5) of fixedlying 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 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 preceding 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 preceding 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 direction of adjacent two row's nozzles is alternately sprayed water along clockwise direction with counterclockwise.
8. according to each described steel pipe cooling device of claim 1-7, it is characterized in that: described connection water pipe (9) is uniform to be arranged between outside framework (11) and the round cavity (12), and the connection 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 the current stabilization dividing plate (8) that is connected the corresponding one by one setting of water pipe (9), and described connection water pipe (9) is positioned between outside framework (11) and the current stabilization dividing plate (8), three limits of described current stabilization dividing plate (8) all and seamless link between the outside framework (11) are provided with the slit of Way out and round cavity (12) axis normal between another side and the outside framework (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110212098 CN102266872B (en) | 2011-07-27 | 2011-07-27 | Steel tube cooling device |
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| CN 201110212098 CN102266872B (en) | 2011-07-27 | 2011-07-27 | Steel tube cooling device |
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| CN102266872B CN102266872B (en) | 2013-03-20 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103264054A (en) * | 2013-06-04 | 2013-08-28 | 中冶赛迪工程技术股份有限公司 | Steel tube even cooling device |
| CN103350297A (en) * | 2013-06-27 | 2013-10-16 | 西安石油大学 | Cooling device and method for butt welding of coiled tubing |
| CN104060060A (en) * | 2014-06-30 | 2014-09-24 | 江阴东邦钢球机械有限公司 | Heat treatment cooling device |
| CN106424169A (en) * | 2016-12-19 | 2017-02-22 | 中冶赛迪工程技术股份有限公司 | Steel pipe cooling device for prevention of water induction into pipe inner wall |
| 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 |
| CN115446132A (en) * | 2022-11-03 | 2022-12-09 | 邢台军华机械科技有限公司 | Steel pipe cooling device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264054A (en) * | 2013-06-04 | 2013-08-28 | 中冶赛迪工程技术股份有限公司 | Steel tube even cooling device |
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| CN107841602B (en) * | 2017-11-09 | 2024-08-02 | 新昌县鹏晟机械有限公司 | Steel pipe 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 |
| CN115446132A (en) * | 2022-11-03 | 2022-12-09 | 邢台军华机械科技有限公司 | Steel pipe cooling device |
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