CN215467084U - Water cooling device of bar hot rolling system - Google Patents
Water cooling device of bar hot rolling system Download PDFInfo
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- CN215467084U CN215467084U CN202121248917.5U CN202121248917U CN215467084U CN 215467084 U CN215467084 U CN 215467084U CN 202121248917 U CN202121248917 U CN 202121248917U CN 215467084 U CN215467084 U CN 215467084U
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Abstract
The utility model discloses a water through cooling device of a bar hot rolling system, which comprises an inlet guide and an outlet guide, wherein a first cooling pipe and a second cooling pipe are sequentially arranged between the inlet guide and the outlet guide, a first water inlet is formed between the inlet guide and the first cooling pipe, a second water inlet is formed between the second cooling pipe and the outlet guide, a first water inlet mechanism is arranged between the inlet guide and the first cooling pipe, a water inlet pipe is arranged on the water inlet sleeve, a second water inlet mechanism is arranged between the second cooling pipe and the outlet guide, a water outlet sleeve is connected between the first cooling pipe and the second cooling pipe through a flange, a bolt and a gasket, a water outlet pipe is arranged at the top of the water outlet sleeve, steam drums are respectively arranged above the first cooling pipe and the second cooling pipe, a steam exhaust pipe is arranged at the top of each steam drum, and the end part of each steam exhaust pipe is communicated with the water outlet pipe. The utility model has reasonable structure arrangement, uniform cooling, good cooling effect and obvious economic and social values.
Description
Technical Field
The utility model relates to the technical field of steelmaking equipment, in particular to a through water cooling device of a bar hot rolling system.
Background
In the production process of the bar, in order to reduce the addition amount of alloy, control carbide and obtain an ideal microstructure and grain size so as to improve the mechanical property of the rolled bar, a cooling control device is adopted to control the temperature of the bar from the surface to the core after rolling, which is a very important regulation and control means. The water cooling device mainly comprises an inlet guide device, a water-cooling nozzle, a turbulent flow pipe, a water return tank, an outlet guide device and a blowing device, when the water cooling device works, a moving high-temperature bar enters the cooling device from the inlet guide device, high-pressure cooling water is sprayed to the surface of the bar from the water-cooling nozzle and cools the bar along with the bar together entering the turbulent flow pipe, the high-temperature cooling water after heat exchange is discharged from the water return tank and flows back to the water-cooling nozzle after cooling treatment, and the bar is blown clean by the blowing device and then is guided out from the outlet guide device, so that quick cooling is realized.
Therefore, in the existing through-water cooling device, the movement direction of cooling water is consistent with the advancing direction of the bar, the temperature of the cooling water gradually rises and the temperature of the surface of the bar is continuously reduced in the continuous advancing and cooling processes, when the temperature difference between the cooling water and the bar is continuously reduced, the heat exchange capacity is gradually reduced, the cooling capacity of the cooling device is gradually weakened, the cooling rate is gradually reduced, and the cooling effect cannot completely meet the cooling requirement of a production enterprise on the bar; secondly, the cooling water contacts with the rod surface in the torrent pipe, because the temperature is higher, the cooling water can produce a large amount of steam, if can not discharge smoothly easily and break down, has certain potential safety hazard, still can seriously reduce the effect of rod water cooling, causes the uneven problem of rod cooling. Therefore, the development of the through water cooling device of the bar hot rolling system, which has the advantages of reasonable structure arrangement, uniform cooling and good cooling effect, is objectively needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the through water cooling device of the bar hot rolling system, which has the advantages of reasonable structure arrangement, uniform cooling and good cooling effect.
The utility model aims to realize the purpose, which comprises an inlet guide and an outlet guide, wherein a first cooling pipe and a second cooling pipe are sequentially arranged between the inlet guide and the outlet guide, the first cooling pipe and the second cooling pipe are venturi pipes, a first outer conical surface is processed at the outlet end of the inlet guide, a first inner conical surface matched with the first outer conical surface is processed at the inlet end of the first cooling pipe, an annular first water inlet is formed between the first outer conical surface and the first inner conical surface, the water outlet direction of the first water inlet inclines towards the direction of the first cooling pipe, a second inner conical surface is processed at the outlet end of the second cooling pipe, a second outer conical surface matched with the second inner conical surface is processed at the inlet end of the outlet guide, an annular second water inlet is formed between the second inner conical surface and the second outer conical surface, and the water outlet direction of the second water inlet inclines towards the direction of the second cooling pipe, the first water inlet mechanism is arranged between the inlet guide and the first cooling pipe and comprises a ring plate, a water inlet sleeve and a nut, an inner ring of the ring plate is fixed on the inlet guide, the nut is screwed on the outer wall of the inlet end of the first cooling pipe, one end of the water inlet sleeve is sleeved on the inlet guide, the other end of the water inlet sleeve is sleeved on the first cooling pipe, sealing gaskets are arranged between the water inlet sleeve and the ring plate and between the water inlet sleeve and the nut, a water inlet pipe is arranged on the water inlet sleeve, a second water inlet mechanism is arranged between the second cooling pipe and the outlet guide, the second water inlet mechanism and the first water inlet mechanism are symmetrically arranged, the ring plate of the second water inlet mechanism is fixed on the outlet guide, and the nut is screwed on the outer wall of the outlet end of the second cooling pipe.
The inlet end of the second cooling pipe is in threaded connection with a middle guide, flanges are arranged on the outer wall of the outlet end of the first cooling pipe and the outer wall of the inlet end of the second cooling pipe, a water outlet sleeve is connected between the two flanges through bolts and gaskets, a water outlet pipe is arranged at the top of the water outlet sleeve, a steam pocket is arranged above the first cooling pipe and above the second cooling pipe respectively, the steam pocket is communicated with the first cooling pipe and the second cooling pipe through a plurality of steam inlet pipes, a steam exhaust pipe is arranged at the top of the steam pocket, and the end part of the steam exhaust pipe is communicated with the water outlet pipe.
Further, a spring washer is arranged between the nut and the sealing gasket.
Furthermore, a one-way valve is arranged on the steam exhaust pipe.
Furthermore, a transparent observation window is arranged on the side wall of the water inlet sleeve.
Further, the bottoms of the first cooling pipe and the second cooling pipe are provided with bases.
When the bar is cooled by water, the bar enters the device from the inlet end of the inlet guide, sequentially passes through the inlet guide, the first cooling pipe, the middle guide, the second cooling pipe and the outlet guide and is discharged, cooling water is simultaneously input into the water inlet sleeves from the water inlet pipes of the first water inlet mechanism and the second water inlet mechanism and then is sprayed onto the surface of the bar from the first water inlet and the second water inlet respectively, wherein the cooling water sprayed from the first water inlet enters the first cooling pipe, the bar is subjected to primary cooling while flowing in the same direction as the bar in the first cooling pipe and finally flows out of the water jacket, the cooling water sprayed from the second water inlet enters the second cooling pipe, the bar is subjected to secondary cooling while flowing in the opposite direction with the bar in the second cooling pipe, and finally flows into the water jacket and is discharged from the water outlet pipe. In the process, the bar and the cooling water are sequentially cooled in a mode of combining the same-direction heat exchange and the reverse-direction heat exchange, and compared with the prior art, the bar cooling device has the advantages that the structure is more reasonable, and the cooling effect of the bar is better; secondly, set up the steam pocket above first cooling tube and second cooling tube, the steam pocket is in time discharged into to the steam pocket in a large amount of steam accessible that the heat of high temperature rod was absorbed to the cooling water and generated for the rod can be fully wrapped up by the cooling water in two cooling tubes, ensures the best heat transfer environment, ensures the refrigerated homogeneity of rod, improves the water-cooling effect of rod. The utility model has reasonable structure arrangement, uniform cooling, good cooling effect and obvious economic and social values.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-inlet guide, 2-outlet guide, 3-first cooling pipe, 4-second cooling pipe, 5-first external conical surface, 6-first internal conical surface, 7-first water inlet, 8-second internal conical surface, 9-second external conical surface, 10-second water inlet, 11-ring plate, 12-water inlet sleeve, 13-nut, 14-sealing gasket, 15-water inlet pipe, 16-middle guide, 17-flange, 18-water outlet sleeve, 19-water outlet pipe, 20-steam pocket, 21-steam inlet pipe, 22-steam exhaust pipe, 23-spring washer, 24-one-way valve, 25-observation window and 26-base.
Detailed Description
The present invention is further described with reference to the drawings, but the present invention is not limited thereto in any way, and any modification or improvement based on the present invention is within the protection scope of the present invention.
As shown in fig. 1, the present invention comprises an inlet guide 1 and an outlet guide 2, the inlet guide 1 and the outlet guide 2 are of the existing structure and are used for guiding the bar to advance, a first cooling pipe 3 and a second cooling pipe 4 are sequentially arranged between the inlet guide 1 and the outlet guide 2, the first cooling pipe 3 and the second cooling pipe 4 are both venturi tubes, the outlet end of the inlet guide 1 is processed with a first external conical surface 5, the inlet end of the first cooling pipe 3 is processed with a first internal conical surface 6 matched with the first external conical surface 5, an annular first water inlet 7 is formed between the first external conical surface 5 and the first internal conical surface 6, the water outlet direction of the first water inlet 7 is inclined towards the direction of the first cooling pipe 3, the outlet end of the second cooling pipe 4 is processed with a second internal conical surface 8, the inlet end of the outlet guide 2 is processed with a second external conical surface 9 matched with the second external conical surface 8, and an annular second water inlet 10 is formed between the second internal conical surface 8 and the second external conical surface 9, the water outlet direction of the second water inlet 10 inclines towards the direction of the second cooling pipe 4, a first water inlet mechanism is arranged between the inlet guide 1 and the first cooling pipe 3, the first water inlet mechanism comprises a ring plate 11, a water inlet sleeve 12 and a nut 13, the inner ring of the ring plate 11 is fixed on the inlet guide 1, the nut 13 is screwed on the outer wall of the inlet end of the first cooling pipe 3, one end of the water inlet sleeve 12 is sleeved on the inlet guide 1, the other end of the water inlet sleeve is sleeved on the first cooling pipe 3, a sealing gasket 14 is arranged between the water inlet sleeve 12 and the ring plate 11 and between the water inlet sleeve 12 and the nut 13, the sealing gasket 14 is used for sealing the water inlet sleeve 12 to prevent cooling water in the water inlet sleeve 12 from overflowing, the first water inlet mechanism can realize water inlet and can also realize adjustment of the size of the first water inlet 7, and the adjustment method is as follows: firstly loosening the nut 13, adjusting the distance between the inlet guide 1 and the first cooling pipe 3 as required, namely adjusting the width of the first water inlet 7, then fixing the inlet guide 1 and the first cooling pipe 3 and simultaneously screwing the nut 13, so that the other end of the water inlet sleeve 12 is abutted against the ring plate 11, the action of the second water inlet mechanism is the same as that of the first water inlet mechanism, the adjustment method of the size of the second water inlet 10 is the same as that of the first water inlet 7, the water inlet sleeve 12 is provided with a water inlet pipe 15, the second water inlet mechanism is arranged between the second cooling pipe 4 and the outlet guide 2, the second water inlet mechanism and the first water inlet mechanism are symmetrically arranged, wherein the ring plate 11 of the second water inlet mechanism is fixed on the outlet guide 2, and the nut 13 is screwed on the outer wall of the outlet end of the second cooling pipe 4.
The inlet end of the second cooling pipe 4 is in threaded connection with a middle guide 16, the middle guide 16 is used for guiding the bar to advance, and the structure of the rod guide can be realized by using the existing guide mechanism, flanges 17 are arranged on the outer wall of the outlet end of the first cooling pipe 3 and the outer wall of the inlet end of the second cooling pipe 4, a water outlet sleeve 18 is connected between the two flanges 17 through bolts and gaskets, a water outlet pipe 19 is arranged at the top of the water outlet sleeve 18, a steam pocket 20 is respectively arranged above the first cooling pipe 3 and the second cooling pipe 4, the steam pocket 20 is communicated with the first cooling pipe 3 and the second cooling pipe 4 through a plurality of upper steam pipes 21, a steam exhaust pipe 22 is arranged at the top of the steam pocket 20, and the end part of the steam exhaust pipe 22 is communicated with the water outlet pipe 19.
When the utility model cools the bar through water, the bar enters the device from the inlet end of the inlet guide 1, passes through the inlet guide 1, the first cooling pipe 3, the middle guide 16, the second cooling pipe 4 and the outlet guide 2 in sequence and then is discharged, the cooling water is simultaneously input into the water inlet sleeve 12 from the water inlet pipes 15 of the first water inlet mechanism and the second water inlet mechanism and then sprayed to the surface of the bar material from the first water inlet 7 and the second water inlet 10 respectively, wherein the cooling water sprayed from the first water inlet 7 enters the first cooling pipe 3, the bar is cooled for the first time while flowing in the same direction with the bar in the first cooling pipe 3, and finally flows into the water outlet jacket 18, and the cooling water sprayed from the second water inlet 10 enters the second cooling pipe 4, the bar is cooled for the second time while flowing in the second cooling pipe 4 in the reverse direction to the bar, and finally flows into the water outlet jacket 18 and is discharged from the water outlet pipe 19. In the process, the bar and the cooling water are sequentially cooled in a mode of combining the same-direction heat exchange and the reverse-direction heat exchange, and compared with the prior art, the bar cooling device has the advantages that the structure is more reasonable, and the cooling effect of the bar is better; secondly, set up steam pocket 20 above first cooling tube 3 and second cooling tube 4, steam pocket 20 is in time discharged to a large amount of steam accessible that the heat of high temperature rod was absorbed to the cooling water and generated for the rod can be fully wrapped up by the cooling water in two cooling tubes, ensures the best heat transfer environment, ensures the refrigerated homogeneity of rod, improves the water cooling effect that wears of rod.
A spring washer 23 is arranged between the nut 13 and the sealing gasket 14, certain thrust can be generated on the nut 13 through the spring washer 23, the situation that the nut 13 is loosened can be prevented through the thrust, and normal operation of the device is guaranteed.
The exhaust pipe 22 is provided with a check valve 24, and the check valve 24 is an existing valve and has the function of ensuring the unidirectional flow of steam in the exhaust pipe 22 and preventing water in the water outlet pipe 19 from returning to the cooling pipe through the exhaust pipe 22 to reduce the cooling effect of the bar.
The side wall of the water inlet sleeve 12 is provided with a transparent observation window 25, and the working condition in the water inlet sleeve 12 can be conveniently observed through the observation window 25.
The bottom of first cooling tube 3 and second cooling tube 4 all is provided with base 26, realizes through base 26 that support in order to avoid first cooling tube 3 and second cooling tube 4 to take place to warp, fixes base 26 subaerial during the use, and the holistic vibration of reducible device promotes the stability when this device moves.
Claims (5)
1. The utility model provides a rod hot rolling system's water cooling device that wears, leads including import and defends (1) and export and defend (2), its characterized in that: a first cooling pipe (3) and a second cooling pipe (4) are sequentially arranged between an inlet guide piece (1) and an outlet guide piece (2), the first cooling pipe (3) and the second cooling pipe (4) are Venturi tubes, a first outer conical surface (5) is processed at the outlet end of the inlet guide piece (1), a first inner conical surface (6) matched with the first outer conical surface (5) is processed at the inlet end of the first cooling pipe (3), an annular first water inlet (7) is formed between the first outer conical surface (5) and the first inner conical surface (6), the water outlet direction of the first water inlet (7) inclines towards the direction of the first cooling pipe (3), a second inner conical surface (8) is processed at the outlet end of the second cooling pipe (4), a second outer conical surface (9) matched with the second inner conical surface (8) is processed at the inlet end of the outlet guide piece (2), and an annular second outer conical surface (10) is formed between the second inner conical surface (8) and the second outer conical surface (9) ) The water outlet direction of the second water inlet (10) inclines towards the direction of the second cooling pipe (4), a first water inlet mechanism is arranged between the inlet guide and guard (1) and the first cooling pipe (3), the first water inlet mechanism comprises a ring plate (11), a water inlet sleeve (12) and a nut (13), the inner ring of the ring plate (11) is fixed on the inlet guide and guard (1), the nut (13) is screwed on the outer wall of the inlet end of the first cooling pipe (3), one end of the water inlet sleeve (12) is sleeved on the inlet guide and guard (1), the other end of the water inlet sleeve (12) is sleeved on the first cooling pipe (3), sealing gaskets (14) are respectively arranged between the water inlet sleeve (12) and the ring plate (11) and between the water inlet sleeve (12) and the nut (13), a water inlet pipe (15) is arranged on the water inlet sleeve (12), and a second water inlet mechanism is arranged between the second cooling pipe (4) and the outlet guide and guard (2), the second water inlet mechanism and the first water inlet mechanism are symmetrically arranged, wherein a ring plate (11) of the second water inlet mechanism is fixed on the outlet guide and guard (2), and a nut (13) is screwed on the outer wall of the outlet end of the second cooling pipe (4);
the utility model discloses a steam cooling device, including first cooling pipe (4), second cooling pipe (4), inlet end spiro union has middle part to lead and defends (16), all be provided with flange (17) on the outer wall of first cooling pipe (3) exit end and the outer wall of second cooling pipe (4) inlet end, be connected with out water jacket (18) through bolt and gasket between two flanges (17), the top of going out water jacket (18) is provided with outlet pipe (19), the top of first cooling pipe (3) and second cooling pipe (4) is provided with one steam pocket (20) respectively, between steam pocket (20) and first cooling pipe (3), all communicate through many last steam pipes (21) between steam pocket (20) and second cooling pipe (4), the top of steam pocket (20) is provided with steam exhaust pipe (22), the tip and outlet pipe (19) intercommunication of steam exhaust pipe (22).
2. The through water cooling device of the bar hot rolling system according to claim 1, wherein a spring washer (23) is arranged between the nut (13) and the sealing gasket (14).
3. The through water cooling device of the bar hot rolling system according to claim 1, wherein the steam exhaust pipe (22) is provided with a one-way valve (24).
4. The through water cooling device of the bar hot rolling system according to claim 1, wherein a transparent observation window (25) is arranged on the side wall of the water inlet sleeve (12).
5. The through water cooling device of the bar hot rolling system according to claim 1, wherein the bottoms of the first cooling pipe (3) and the second cooling pipe (4) are provided with bases (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121248917.5U CN215467084U (en) | 2021-06-05 | 2021-06-05 | Water cooling device of bar hot rolling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121248917.5U CN215467084U (en) | 2021-06-05 | 2021-06-05 | Water cooling device of bar hot rolling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215467084U true CN215467084U (en) | 2022-01-11 |
Family
ID=79782995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121248917.5U Active CN215467084U (en) | 2021-06-05 | 2021-06-05 | Water cooling device of bar hot rolling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215467084U (en) |
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2021
- 2021-06-05 CN CN202121248917.5U patent/CN215467084U/en active Active
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