Multi-pipe water jet manifold structure

Abstract

The utility model relates to the technical field of steel continuous casting, especially to a kind of multi-pipeline water spray header structure, including cold header body, the cold header body includes water spray main pipe, at least two parallel water spray connecting pipes are provided on the water spray main pipe, spray unit is provided on the water spray connecting pipe, the water pipe outside is equipped with the flat welding steel pipe flange of protruding surface board, for fixing cold header in continuous casting equipment specified position, the spray unit includes the spray sub-pipe vertically arranged with water spray connecting pipe and the nozzle unit being set on spray sub-pipe;By optimizing structure design, set up multiple parallel water spray connecting pipes, reasonable spray unit and stable mounting structure, the problems existing in traditional header can be effectively solved, cooling effect is improved, and the quality of casting blank is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cold manifold technology, and in particular to a multi-pipe spray water manifold structure. Background Technology

[0002] In the continuous casting process of steel, the secondary cooling stage is crucial, directly affecting the quality of the cast billet and production efficiency. Traditional secondary cooling methods for continuous casting often use ordinary water spray manifolds; however, in practical applications, these manifolds have many shortcomings.

[0003] Ordinary water spray manifolds have a relatively simple structure, typically consisting of only a single spray pipe, resulting in limited uniformity and coverage of cooling water spray. During continuous casting, different parts of the billet have varying cooling requirements, and ordinary manifolds struggle to achieve precise and uniform cooling. This can easily lead to uneven temperature distribution on the billet surface, causing quality defects such as cracks and bulging, and affecting the internal structure and mechanical properties of the billet.

[0004] Meanwhile, the nozzle layout and spray angle design of ordinary water spray manifolds are not reasonable enough, resulting in poor cooling effect and failing to meet the requirements of efficient and high-quality production in modern steel continuous casting. Moreover, ordinary manifolds are not securely installed and fixed, and are prone to loosening and displacement during the operation of continuous casting equipment, affecting the stability and reliability of the cooling system.

[0005] Therefore, developing a multi-pipeline water spray manifold structure is particularly necessary. This ultra-fast cooling manifold needs to have efficient, uniform, and flexible cooling capabilities, be able to precisely control the cooling intensity and area, and at the same time have a simple structure and be easy to install and maintain, in order to meet the high-efficiency and stable requirements of steel continuous casting production and improve billet quality and production efficiency. Utility Model Content

[0006] To address some of the problems existing in the prior art, this utility model provides a multi-pipe water spray manifold structure. By optimizing the structural design, setting multiple parallel water spray connection pipes, a reasonable spray unit, and a stable installation structure, it can effectively solve the problems existing in traditional manifolds, improve the cooling effect, and ensure the quality of the cast billet.

[0007] To achieve the above objectives, this utility model provides a multi-pipe water spray manifold structure, including a cold manifold body. The cold manifold body includes a main water spray pipe, on which at least two parallel water spray connecting pipes are provided. A spray unit is provided on the water spray connecting pipe. A raised-panel flat-welded steel pipe flange is fitted on the outside of the water pipe for fixing the cold manifold to a designated position on the continuous casting equipment. The spray unit includes a spray sub-pipe arranged perpendicular to the water spray connecting pipe and a nozzle unit arranged on the spray sub-pipe.

[0008] As a further improvement of this utility model, in order to ensure that the spray sub-pipe and the water spray connection pipe will not loosen or fall off due to water flow impact, equipment vibration and other factors during the continuous casting process, and to ensure that the cooling water can be stably delivered from the water spray connection pipe to the spray sub-pipe, and then sprayed evenly through the nozzle unit, a welded straight pipe joint is provided between the spray sub-pipe and the water spray connection pipe, and the spray sub-pipe is vertically connected to the water spray connection pipe through the welded straight pipe joint.

[0009] As a further improvement of this utility model, in order to independently control the nozzles in different areas according to the cooling requirements of different parts of the billet, achieve more precise cooling, further improve the uniformity of billet quality, and flexibly adjust the on / off state of each nozzle, the spray sub-pipe includes an inner spray pipe and an outer spray pipe arranged on the spray sub-pipe. The nozzle unit specifically consists of multiple sets of nozzles arranged on the inner spray pipe and the outer spray pipe. The spacing between the nozzles on each inner spray pipe and the outer spray pipe is consistent. A ball valve is provided in the nozzle unit.

[0010] As a further improvement of this utility model, in order to increase the contact area and contact time between the cooling water and the billet, improve the heat exchange efficiency, and accelerate the cooling speed of the billet, the spraying directions of the nozzles on each inner spray pipe and outer spray pipe are arranged opposite each other and at an angle of 30-40°.

[0011] As a further improvement of this utility model, in order to prevent cooling water from leaking at the connection between the water spray connection pipe and the main spray pipe and to ensure that all cooling water can be delivered to the water spray connection pipe, an internal hexagonal screw plug is installed at the end of the water spray connection pipe, and the water spray connection pipe is stably connected to the main spray pipe through the internal hexagonal screw plug.

[0012] As a further improvement of this utility model, in order to make the distribution of cooling water more uniform in the width direction of the billet and avoid local dense or sparse cooling, and to further ensure the uniformity of the surface temperature of the billet, the spacing between adjacent water spray connection pipes is kept consistent.

[0013] In operation, this invention utilizes a raised-panel flat-welded steel pipe flange, fitted externally to the water pipe of the cold manifold body, to precisely and securely install the manifold in the designated position, ensuring accurate installation and guaranteeing subsequent cooling effectiveness. Simultaneously, an internal hexagonal plug at the end of the water spray connection pipe ensures a tight and stable connection between the water spray connection pipe and the main spray pipe, preventing leakage or loosening during operation. After installation, a comprehensive test is conducted to check the firmness of all component connections and the effectiveness of seals.

[0014] The cooling water source is connected to the main water spray pipe. At this time, the operator can flexibly adjust the on / off state of each nozzle through the ball valve installed in the nozzle unit according to the actual production parameters such as the specifications, material and continuous casting speed of the continuously cast billet. This allows for precise control of the cooling water flow and spray range, ensuring that the cooling needs under different working conditions can be met.

[0015] When the continuously cast billet enters the secondary cooling zone, cooling water flows from the main spray pipe into parallel spray connecting pipes, and then through welded straight-through pipe joints into the auxiliary spray pipes. Nozzles, spaced evenly and with spray directions at 30-40° to each other, are positioned on the inner and outer spray pipes, uniformly spraying the cooling water across the billet surface. This unique nozzle layout and spray angle design ensures a uniform coverage of the cooling water on the billet surface, achieving efficient and uniform cooling and effectively preventing quality defects such as cracks and bulging caused by uneven billet surface temperature.

[0016] After the billet has cooled and left the secondary cooling area, the water supply should be shut off. The manifold should be inspected and maintained regularly, nozzle blockages should be cleared, and all connections should be checked for looseness to ensure the manifold is always in good working order and provides a reliable guarantee for the next continuous casting production.

[0017] The beneficial effects of this utility model are as follows: The cooling effect is significantly improved. This ultra-fast cooling manifold, by installing at least two parallel water spray connection pipes on the main water spray pipe, and cooperating with evenly distributed and spaced nozzles on the inner and outer spray pipes, allows cooling water to comprehensively and uniformly cover the surface of the cast billet. The nozzles spray in opposite directions at a 30-40° angle, forming a cross-spray, which greatly increases the contact area and heat exchange time between the cooling water and the cast billet, effectively improving cooling efficiency and rapidly reducing the temperature of the cast billet to meet the high-efficiency cooling requirements of continuous steel casting.

[0018] Excellent cooling uniformity Multiple sets of parallel water spray connection pipes and a reasonable arrangement of nozzles avoid the problems of local over- or under-cooling that may occur with traditional cooling devices, ensuring the uniformity of the surface temperature of the billet, reducing quality defects such as cracks and bulging caused by temperature differences, and significantly improving the quality and yield of the billet.

[0019] Convenient and efficient installation and maintenance The water pipes are fitted with raised-panel flat-welded steel pipe flanges, facilitating the secure installation of the cold manifolds on the continuous casting equipment. The spray connection pipes are connected to the main spray pipes via hexagonal socket plugs, simplifying installation and disassembly. Ball valves allow for flexible adjustment of nozzle flow, simplifying operation. These designs reduce the difficulty of equipment installation and maintenance, minimize downtime, improve production efficiency, and lower production costs. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a structural diagram of the present invention.

[0021] Figure 2 This is a top view of the structure of this utility model.

[0022] Figure 3 This is a side view of the present invention.

[0023] Among them, 1 is the main water spray pipe, 2 is the water spray connection pipe, 3 is the spray unit, 4 is the raised panel type flat welded steel pipe flange, 5 is the spray auxiliary pipe, 6 is the nozzle unit, 7 is the welded straight pipe joint, 8 is the inner spray pipe, 9 is the outer spray pipe, 10 is the ball valve, and 11 is the internal hexagonal screw plug (11). Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-3 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0025] like Figure 1-3 The diagram shows a multi-pipe water spray manifold structure, including a cold manifold body. The cold manifold body includes a main water spray pipe 1, on which at least two parallel water spray connecting pipes 2 are provided. A spray unit 3 is provided on the water spray connecting pipe 2. A raised panel type flat welded steel pipe flange 4 is fitted on the outside of the water pipe for fixing the cold manifold to a designated position on the continuous casting equipment. The spray unit 3 includes a spray sub-pipe 5 arranged perpendicular to the water spray connecting pipe 2 and a nozzle unit 6 arranged on the spray sub-pipe 5.

[0026] A welded straight pipe joint 7 is provided between the spray sub-pipe 5 and the water spray connection pipe 2, and the spray sub-pipe 5 is vertically connected to the water spray connection pipe 2 through the welded straight pipe joint 7.

[0027] The spray sub-pipe 5 includes an inner spray pipe 8 and an outer spray pipe 9 disposed on the spray sub-pipe 5. The nozzle unit 6 specifically consists of multiple sets of nozzles disposed on the inner spray pipe 8 and the outer spray pipe 9. The spacing between the nozzles on each inner spray pipe 8 and the outer spray pipe 9 is consistent. A ball valve 10 is disposed inside the nozzle unit 6.

[0028] The nozzles on each of the inner spray pipe 8 and the outer spray pipe 9 are arranged in opposite directions at an angle of 30-40°.

[0029] The end of the water spray connection pipe 2 is fitted with an internal hexagonal screw plug 11, and the water spray connection pipe 2 is stably connected to the main spray pipe through the internal hexagonal screw plug 11.

[0030] The spacing between adjacent water spray connection pipes 2 remains consistent.

[0031] In operation, this utility model utilizes the raised-panel flat-welded steel pipe flange 4, which is fitted externally to the water pipe of the cold manifold body, to precisely and securely install the manifold in the designated position, ensuring accurate installation and guaranteeing subsequent cooling effect. Simultaneously, the internal hexagonal plug 11 at the end of the water spray connection pipe 2 ensures a tight and stable connection between the water spray connection pipe 2 and the main spray pipe, preventing leakage or loosening during operation. After installation, a comprehensive debugging process is conducted to check whether the connections of each component are secure and the seals are good.

[0032] Connect the cooling water source to the main water spray pipe 1. At this time, the operator can flexibly adjust the on / off state of each nozzle through the ball valve 10 set in the nozzle unit 6 according to the actual production parameters such as the specifications, material and continuous casting speed of the continuously cast billet, so as to precisely control the flow rate and spray range of the cooling water and ensure that the cooling needs under different working conditions can be met.

[0033] When the continuously cast billet enters the secondary cooling zone, cooling water flows from the main spray pipe 1 into the parallel spray connecting pipe 2, and then through the welded straight pipe joint 7 into the spray auxiliary pipe 5. Nozzles, spaced evenly and with spray directions at 30-40° to each other, installed on the inner spray pipe 8 and outer spray pipe 9, begin to work, uniformly and crosswise spraying the cooling water onto the billet surface. This unique nozzle layout and spray angle design ensures a uniform coverage of the cooling water on the billet surface, achieving efficient and uniform cooling and effectively preventing quality defects such as cracks and bulging caused by uneven billet surface temperature.

[0034] After the billet has cooled and left the secondary cooling area, the water supply should be shut off. The manifold should be inspected and maintained regularly, nozzle blockages should be cleared, and all connections should be checked for looseness to ensure the manifold is always in good working order and provides a reliable guarantee for the next continuous casting production.

[0035] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A multi-pipe spray manifold structure, comprising a cold manifold body, characterized in that, The cold manifold body includes a main water spray pipe (1), which is provided with at least two parallel water spray connecting pipes (2). A spray unit (3) is provided on the water spray connecting pipe (2). A raised panel type flat welded steel pipe flange (4) is fitted on the outside of the main water spray pipe to fix the cold manifold at a designated position on the continuous casting equipment. The spray unit (3) includes a spray sub-pipe (5) arranged perpendicular to the water spray connecting pipe (2) and a nozzle unit (6) arranged on the spray sub-pipe (5).

2. The multi-pipe spray manifold structure according to claim 1, characterized in that, A welded straight pipe joint (7) is provided between the spray sub-pipe (5) and the water spray connection pipe (2), and the spray sub-pipe (5) is vertically connected to the water spray connection pipe (2) through the welded straight pipe joint (7).

3. The multi-pipe spray manifold structure according to claim 1, characterized in that, The spray sub-pipe (5) includes an inner spray pipe (8) and an outer spray pipe (9) disposed on the spray sub-pipe (5). The nozzle unit (6) specifically consists of multiple sets of nozzles disposed on the inner spray pipe (8) and the outer spray pipe (9). The spacing between the nozzles on each inner spray pipe (8) and the outer spray pipe (9) is consistent. A ball valve (10) is provided in the nozzle unit (6).

4. The multi-pipe spray manifold structure according to claim 3, characterized in that, The nozzles on each of the inner spray pipes (8) and outer spray pipes (9) are arranged in opposite directions and at an angle of 30-40°.

5. A multi-pipeline water spray manifold structure according to claim 1, characterized in that, The end of the water spray connection pipe (2) is fitted with an internal hexagonal screw plug (11), and the water spray connection pipe (2) is stably connected to the main spray pipe through the internal hexagonal screw plug (11).

6. The multi-pipeline water spray manifold structure according to claim 1, characterized in that, The spacing between adjacent water spray connection pipes (2) remains consistent.

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