CN202162220U - Steel pipe cooling device - Google Patents
Steel pipe cooling device Download PDFInfo
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- CN202162220U CN202162220U CN2011202689025U CN201120268902U CN202162220U CN 202162220 U CN202162220 U CN 202162220U CN 2011202689025 U CN2011202689025 U CN 2011202689025U CN 201120268902 U CN201120268902 U CN 201120268902U CN 202162220 U CN202162220 U CN 202162220U
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Abstract
The utility model discloses a steel pipe cooling device, which comprises cooling water tanks arranged between each two adjacent conveying roller ways respectively. Each cooling water tank comprises water spray sub-tanks and a water inlet pipe, wherein the water spray sub-tanks are serially connected by connecting water pipes and arranged parallelly and oppositely, and the water inlet pipe is connected with the connecting water pipes and an external water supply pipe. Each water spray sub-tank comprises an outer frame, a circular inner cavity and spray nozzles, wherein the circular inner cavity is arranged in the outer frame, the spray nozzles are arranged on the inner peripheral wall of the circular inner cavity along the circumferential direction of the circular inner cavity, the water spray directions of all the spray nozzles are perpendicular to the axis of the circular inner cavity, and the distances from the extension lines of the water spray directions of all the spray nozzles to the axis of the circular inner cavity are equal and smaller than or equal to the radius of a steel pipe to be cooled. The steel pipe cooling device can be used for greatly decreasing and even eliminating the problem of inlet water retention at the head and the tail of the steel pipe during operation of the steel pipe, and the space between each two serially connected water spray sub-tanks is hollowed, so that the problem of water storage of sealing water rings can be solved.
Description
Technical field
The utility model 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, behind eddy-current heating, carry out the hot tensile strength tube reducing, 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, owing to air cooling after electric induction heats again, cooldown rate is low; Cause the final intensity of welded tube will be lower than the intensity of female pipe, obtain the steel pipe of higher-strength, perhaps add alloying element like needs; Perhaps carry out modifier treatment, this dual mode has all improved the production cost of welded tube, and through 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 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 perhaps perpendicular to the steel pipe traffic direction 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 improve the cooling effectiveness and the production cost that reduces steel pipe of steel pipe to existing steel pipe cooling device its structure that improves; Simultaneously through 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 with vertically cooling is more even.
The utility model content
The technical problem that the utility model will solve provides a kind of steel pipe cooling device, and 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, the ratio of component in the adjustment metal structure, the intensity of raising 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 circumferentially with vertically cooling is more even with making steel pipe.
In order to realize above-mentioned technical purpose; The steel pipe cooling device of the utility model comprises the cooling water tank that is separately positioned between the two adjacent conveyor roller-ways; Said cooling water tank comprise through 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; Said 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 said nozzle all with the axis normal of said round cavity, and the extension line of all nozzle water spraying directions equates with the distance of said round cavity axis and smaller or equal to the radius of steel pipe to be cooled.
Further, also comprise support that is fixedly connected with said cooling water tank and the lift that is used for the support up-down;
Further, said water inlet pipe links to each other with outside water supply line through hydraulic quick coupler;
Further, be provided with feed water valve before the said water inlet pipe;
Further, be equipped with the steel pipe guider of taper before the said cooling water tank;
Further, said nozzle divides many rows to be installed on the round cavity along said 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, said connection water pipe is uniformly distributed with and is arranged between outside framework and the round cavity, and the part that the connection water pipe is positioned at sub-water spray chamber is along circumferentially evenly offering leaking hole;
Further; Also be provided with multistage cavity body structure between the outside framework of said cooling water tank and the round cavity; Said 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 said connection water pipe is between outside framework and current stabilization dividing plate, and three limits of said 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.
The steel pipe cooling device of the utility model has following beneficial effect:
1, the water spraying direction through 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, and 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, 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 over against the injection fluid of steel pipe perisporium direction; 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, the center line height of the different tube diameters adjustment cooling water tank through the steel pipe that lift can cool off as required is set makes steel pipe be positioned at the center of cooling water tank; Through 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 through the switching strategy of feed water valve, to adapt to the process for cooling requirement of different steel grades; Through 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 through nozzle is divided into many rows along the axial direction of round cavity, can strengthen the cooling effectiveness of each sub-water spray chamber, the number that reduces cooling water tank with reduce cooling zone length;
3, be uniformly distributed with and be arranged between outside framework and the round cavity and circumferentially evenly offer leaking hole through connecting water pipe, can make fluid get into equably in the outside framework of sub-water spray chamber all around, can realize the current stabilization first time of fluid along connecting water pipe along what is connected water pipe;
4, through multistage cavity body structure is set; Can get 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 the utility model steel pipe cooling device embodiment;
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 sketch map 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
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model.
Shown in Fig. 1-3; Structural representation for the steel pipe cooling device embodiment of the utility model; The steel pipe cooling device of the utility model comprises a plurality of cooling water tanks 1 that are separately positioned between the two adjacent conveyor roller-ways 2, each cooling water tank 1 include through 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.Said 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 through 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, and the fluid of 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 that is fixedly connected with cooling water tank 1 and the lift 6 that is used for support 5 up-downs; The center line height of the different tube diameters adjustment cooling water tank 1 through the steel pipe 4 that lift 6 can cool off as required is set makes 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 through 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 through 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 through 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.Through 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, connection water pipe 9 is uniformly distributed with and is arranged between outside framework 11 and the round cavity 12, and the part that the connection water pipe is positioned at sub-water spray chamber 7 is 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; Said 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.
Be uniformly distributed with and be arranged between outside framework 11 and the round cavity 12 and circumferentially evenly offer leaking hole through connecting water pipe 9 along what be connected water pipe 9; Can make fluid around connecting water pipe 9, get into equably in the outside framework 11 of sub-water spray chamber 7, can realize the current stabilization first time of fluid; Through multistage cavity body structure is set; Can get between current stabilization dividing plate 8 and the round cavity 12 from connecting the fluid that flows in the outside framework 11 in the water pipe 9 on the one hand; Can promote the high speed rotation of cooling fluid in 8 cavitys of round cavity 12 and current stabilization dividing plate on the other hand; 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 through 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; The ratio of component in the adjustment metal structure improves 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 confirmed 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 through the switching strategy of feed water valve group.
Be described further through the specific embodiment of test below the utility model.
At first select size and the size of the inscribed circle 14 that fluid that nozzle 13 sprays forms of the round cavity 12 of suitable cooling water tank 1 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;
The height of adjustment lift 6 makes steel pipe 4 to be cooled be positioned at the center of cooling water tank 1 when moving;
Steel pipe not rotating tee cross under the situation; It shown in Fig. 4 a and Fig. 4 b, can know that at the temperature drop curve in the cooling procedure steel pipe cooling device of using present embodiment cools off under steel pipe 4 not rotation situation; 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 the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (9)
1. steel pipe cooling device; Comprise the cooling water tank (1) that is separately positioned between the two adjacent conveyor roller-ways (2); It is characterized in that: said cooling water tank (1) comprise through 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; Said 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 said nozzle (13) all with the axis normal of said round cavity (12), and the extension line of all nozzles (13) water spraying direction equates with the distance of said 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 the support (5) that is fixedly connected with said cooling water tank and be used for the lift (6) that support goes up and down.
3. steel pipe cooling device according to claim 1 is characterized in that: said water inlet pipe (10) links to each other with outside water supply line through 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 said 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 said cooling water tank (1).
6. steel pipe cooling device according to claim 1 is characterized in that: said 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: said connection water pipe (9) is uniformly distributed with and is arranged between outside framework (11) and the round cavity (12), and the part that the connection water pipe is positioned at sub-water spray chamber (7) is 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 said cooling water tank (1) and the round cavity (12); Said 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 said connection water pipe (9) is positioned between outside framework (11) and the current stabilization dividing plate (8); Three limits of said 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202689025U CN202162220U (en) | 2011-07-27 | 2011-07-27 | Steel pipe cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202689025U CN202162220U (en) | 2011-07-27 | 2011-07-27 | Steel pipe cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162220U true CN202162220U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202689025U Withdrawn - After Issue CN202162220U (en) | 2011-07-27 | 2011-07-27 | Steel pipe cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202162220U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266872A (en) * | 2011-07-27 | 2011-12-07 | 中冶赛迪工程技术股份有限公司 | Steel tube cooling device |
| CN103128108A (en) * | 2013-03-22 | 2013-06-05 | 宝鸡石油钢管有限责任公司 | On-line cooling control method and device for improving strength and tenacity of high-frequency-welding (HFW) welded pipe after being hot rolled |
| CN107511016A (en) * | 2017-10-23 | 2017-12-26 | 江阴兴澄合金材料有限公司 | Deduster for steel rolling production-line |
-
2011
- 2011-07-27 CN CN2011202689025U patent/CN202162220U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266872A (en) * | 2011-07-27 | 2011-12-07 | 中冶赛迪工程技术股份有限公司 | Steel tube cooling device |
| CN103128108A (en) * | 2013-03-22 | 2013-06-05 | 宝鸡石油钢管有限责任公司 | On-line cooling control method and device for improving strength and tenacity of high-frequency-welding (HFW) welded pipe after being hot rolled |
| CN107511016A (en) * | 2017-10-23 | 2017-12-26 | 江阴兴澄合金材料有限公司 | Deduster for steel rolling production-line |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120314 Effective date of abandoning: 20130320 |
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| RGAV | Abandon patent right to avoid regrant |