Laminar cooling water spraying structure with adjustable water spraying height

Abstract

The utility model discloses a laminar cooling water spraying structure with adjustable water spraying height, which comprises a main water pipe and a plurality of water outlets which are arranged on the main water pipe and are uniformly distributed along the length direction, and a water inlet is also arranged on the main water pipe; each water outlet is provided with a nozzle assembly, each nozzle assembly comprises a nozzle seat connected to the corresponding water outlet in a sealed mode and a nozzle body connected to the nozzle seat in a threaded mode, the end of each nozzle body is provided with a first water inlet hole communicated with the corresponding nozzle seat, and a water spraying hole is formed in each nozzle body. The water spraying hole is communicated with the first water inlet hole, a locking ring is arranged on the nozzle body, and the locking ring limits rotation of the nozzle body relative to the nozzle seat. When the nozzle body rotates relative to the nozzle seat, the size of a flux gap between the nozzle body and the nozzle seat is adjusted; the problems that in the prior art, a water spraying structure is difficult to clean and block and cannot be adjusted to achieve the consistent height of water columns sprayed out of all nozzles are solved.

Description

Technical Field

[0001] This utility model relates to the field of cooling water nozzle technology, and in particular to a laminar flow cooling water spray structure with adjustable spray height. Background Technology

[0002] After hot-rolled strip is formed, it needs to undergo a cooling process. Generally, cooling is achieved by uniformly spraying water into the hot-rolled strip. Controlling the distribution of water flow at the outlet of the laminar flow cooling manifold in the cooling process will directly affect the cooling effect of the hot-rolled strip, and will affect the overall quality and performance parameters.

[0003] Currently, the commonly used laminar flow cooling manifolds on the market have simple structures, basically based on orifice plates (such as...). Figure 1 ) and equalizing orifice plates (such as Figure 2 The two structures are designed to regulate the water flow distribution at the outlet of the laminar flow cooling manifold. While these two structures have lower manufacturing costs, they also have significant drawbacks. First, they are not conducive to later maintenance; once clogged, they are difficult to clean online, affecting production efficiency. Second, they cannot adapt to the cooling process requirements by adjusting the water jet height of each nozzle to be consistent. Generally, due to the long manifold length and the varying water output of the spaced nozzles, the water jet height varies. Consequently, it is difficult to achieve balanced cooling during the cooling process of hot-rolled strip, resulting in inconsistencies in quality and performance parameters. Utility Model Content

[0004] (a) Technical issues

[0005] The purpose of this invention is to provide a laminar flow cooling water spray structure with adjustable spray height, which solves the problems in the prior art where the water spray structure is difficult to clean and clog and cannot be adjusted to achieve a consistent water jet height at each nozzle position.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable spray height laminar flow cooling spray structure includes a main water pipe and a plurality of outlets evenly distributed along the length of the main water pipe. The main water pipe also has an inlet. Each outlet is equipped with a nozzle assembly, which includes a nozzle seat sealed to the outlet and a nozzle body threaded to the nozzle seat. The end of the nozzle body has a first inlet hole communicating with the nozzle seat. The nozzle body has a spray hole communicating with the first inlet hole. The nozzle body has a locking ring that limits the rotation of the nozzle body relative to the nozzle seat. When the nozzle body rotates relative to the nozzle seat, the size of the flow gap between the nozzle body and the nozzle seat is adjusted.

[0009] Preferably, the nozzle body has a conical structure extending toward the nozzle seat at one end, and the end of the conical structure has a first water inlet hole; the nozzle seat has a conical hole that mates with the conical structure, and the gap between the conical structure and the conical hole is a flow gap; the nozzle body has a plurality of second water inlets located above the conical structure.

[0010] Preferably, a rectifier core is provided in front of the water spray hole.

[0011] Preferably, the diameter of the first water inlet hole is 6mm to 8mm, the diameter of the second water inlet hole is 4mm, and the equivalent diameter of the spray hole is 15mm.

[0012] Preferably, the orifice diameter of the nozzle seat is 11mm to 13mm.

[0013] Preferably, the size of the flow rate gap is adjusted to adjust the flow rate area within a range of 50 mm. 2 ~132mm 2 The flow rate of the nozzle body is 60L / min to 160L / min; when the flow rate of the nozzle body is 60L / min, the height of the water column ejected from the spray hole is 300mm, and when the flow rate of the nozzle body is 160L / min, the height of the water column ejected from the spray hole is 600mm.

[0014] Preferably, the rotation angle of each nozzle body relative to the nozzle seat is adjusted so that the water jet height of each nozzle assembly is consistent.

[0015] Preferably, the water outlet is provided with an internal thread, the nozzle seat is provided with a threaded portion that mates with the internal thread, the nozzle seat is provided with a sealing groove located at the threaded portion, and a sealing ring is provided in the sealing groove.

[0016] (III) Beneficial Effects

[0017] By installing nozzle assemblies on several outlets of the main water pipe, the size of the flow gap in each nozzle assembly is adjusted by rotating the nozzle body relative to the nozzle seat, thereby achieving consistent adjustment of the water column height ejected from the nozzle orifice in different positions.

[0018] After adjustment, the nozzle body is locked by locking the locking ring to maintain a consistent water column height during the cooling water spray process;

[0019] Each nozzle assembly can be disassembled relative to the outlet for cleaning without disassembling the entire structure. Clogs can also be avoided by replacing the nozzle assembly.

[0020] This ensures consistent water jet height and uniform cooling during the cooling process, thus improving the quality of the cooling treatment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a throttling orifice plate nozzle in the prior art;

[0022] Figure 2 This is a schematic diagram of the structure of a pressure equalizing orifice plate nozzle in the prior art;

[0023] Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the nozzle assembly adjusted to the minimum flow rate in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the nozzle assembly adjusted to medium flow rate in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the nozzle assembly adjusted to the maximum flow rate in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram illustrating the relationship between the flow rate adjustment and water column height of the spray assembly in an embodiment of this utility model.

[0028] exist Figures 1 to 7 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0029] Main water pipe 1, outlet 2, inlet 3, nozzle assembly 4, nozzle seat 41, nozzle body 42, first inlet hole 43, spray hole 44, locking ring 45, cone structure 46, cone hole 47, flow gap 48, second inlet hole 49, rectifier core 410, sealing groove 411, threaded part 412. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] See Figures 2-6 As shown in the embodiments of this utility model, an adjustable water spray height laminar flow cooling water spray structure is proposed. When applied, it is integrated into the cooling process of the hot-rolled strip forming production line. By splitting the high-pressure water flow and achieving water column spraying at the same height, it maintains uniform cooling of the hot-rolled strip and facilitates maintenance and handling efficiency in case of water spray blockage.

[0032] Specifically, the laminar flow cooling spray structure includes a main water pipe 1 and several outlets 2 evenly distributed along the length of the main water pipe 1. The main water pipe 1 also has an inlet 3, which connects to the production line to introduce high-pressure water. The high-pressure water flows outward after being split through the outlets 2. Each outlet 2 is equipped with a nozzle assembly 4, which is used to achieve a higher spray height and increase the spray distance. However, because the pressure of the water flowing through the main water pipe 1 varies when it reaches each nozzle assembly 4, the actual height and distance of the sprayed water column differ, making it difficult to ensure that the cooling water sprayed from each nozzle assembly 4 acts simultaneously on the hot-rolled strip, thus affecting the uniformity of cooling. To solve this problem, the nozzle assembly 4 includes a nozzle seat 41 sealed to the outlet 2 and a nozzle body 42 threaded to the nozzle seat 41. The nozzle body 42 has a first inlet hole 43 communicating with the nozzle seat 41 at its end. A spray hole 44 is provided inside the nozzle body 42, communicating with the first inlet hole 43. A locking ring 45 is provided on the nozzle body 42, limiting the rotation of the nozzle body 42 relative to the nozzle seat 41. Simultaneously, when the nozzle body 42 rotates relative to the nozzle seat 41, it adjusts the relationship between the nozzle body 42 and the spray hole 44. The size of the flow gap 48 between the nozzle seats 41; the locking ring 45 locks the nozzle body 42 relative to the nozzle seat 41 in an adjustable state. By adjusting the size of the flow gap 48, the flow rate can be adjusted, thereby adjusting the water flow rate entering the nozzle body 42. The cooling water enters the first water inlet 43 after passing through the nozzle seat 41 and the flow gap 48, and is finally sprayed out through the spray hole 44. Thus, by adjusting the size of the flow gap 48, the spray water pressure can be adjusted, that is, the height of the spray water column can be adjusted. By adjusting each nozzle assembly 4, the height of the spray water column of the entire water spray structure can be kept consistent.

[0033] If a blockage occurs during use, the corresponding nozzle assembly 4 can be disassembled and replaced directly to restore the normal cooling water spray process in a short time, thus improving maintenance efficiency.

[0034] To facilitate the adjustment of the flow gap 48, a conical structure 46 extending towards the nozzle seat 41 is provided at the end of the nozzle body 42. The end of the conical structure 46 is provided with the first water inlet hole 43. A conical hole 47 that mates with the conical structure 46 is provided in the nozzle seat 41. The gap between the conical structure 46 and the conical hole 47 is the flow gap 48. That is, when the nozzle body 42 is rotated relative to the nozzle seat 41, the gap between the inner wall of the conical structure 46 and the conical hole 47 is actually adjusted. The minimum gap can be 0, and at this time, water only enters through the first water inlet hole 43, and the water flow is small. After the gap is increased, the water flow increases and can enter the nozzle body 42 from above the conical structure 46. Specifically, multiple second water inlets 49 are provided on the nozzle body 42 above the conical structure 46. After the gap is increased, the water flows into the nozzle body 42 from both the first water inlet hole 43 and the second water inlet hole 49, thereby increasing the height of the water jet. There are four second water inlet holes 49.

[0035] Meanwhile, in order to improve the uniformity of the water column sprayed from the water jet hole 44, a rectifier core 410 is provided in front of the water jet hole 44. The rectifier core 410 is mainly used to ensure that the cross-sectional area of ​​the water jet remains consistent, and a mature structure can be adopted.

[0036] To facilitate the adjustment of the uniformity of the water jet height, the diameter of the first water inlet 43 is set to 6mm~8mm, the diameter of the second water inlet 49 is set to 4mm, and the equivalent diameter of the water jet 44 is set to 15mm.

[0037] At the same time, ensure that the water flow from the main water pipe 1 is sufficient, so that the orifice diameter of the nozzle seat 41 is 11mm~13mm.

[0038] By adjusting the movement of the nozzle body 42 relative to the nozzle seat 41, the size of the flow gap 48 can be adjusted, and the actual adjustable flow area range is 50mm. 2 ~132mm 2 Corresponding to the above-mentioned flow area range, the flow rate range distributed through the spray hole 44 of the nozzle body 42 is 60L / min to 160L / min.

[0039] like Figure 7 As shown, the height of the water jet from the spray hole 44 can be adjusted by adjusting the specific flow rate. Specifically, when the flow rate of the nozzle body 42 is 60L / min, the height of the water jet from the spray hole 44 is 300mm, and when the flow rate of the nozzle body 42 is 160L / min, the height of the water jet from the spray hole 44 is 600mm.

[0040] Therefore, by adjusting the rotation angle of each nozzle body 42 relative to the nozzle seat 41, the water jet height of each nozzle assembly 4 is consistent, thereby ensuring the consistency of the water jet height of the entire water spray structure.

[0041] To facilitate quick assembly and disassembly of the nozzle seat 41 and meet sealing requirements, the outlet 2 is provided with an internal thread, and the nozzle seat 41 is provided with a threaded portion 412 that mates with the internal thread. The nozzle seat 41 is provided with a sealing groove 411 located at the threaded portion 412, and a sealing ring is provided in the sealing groove 411. After the nozzle seat 41 is fastened to the internal thread through the threaded portion 412, the sealing ring is pressed to achieve a seal at the connection. Furthermore, the use of threaded engagement facilitates quick assembly and disassembly of the entire nozzle assembly 4.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A laminar flow cooling water spray structure with adjustable spray height, characterized in that: It includes a main water pipe (1) and a number of water outlets (2) evenly distributed along the length of the main water pipe (1). The main water pipe (1) is also provided with a water inlet (3). Each outlet (2) is equipped with a nozzle assembly (4), which includes a nozzle seat (41) sealed to the outlet (2) and a nozzle body (42) threaded to the nozzle seat (41). The end of the nozzle body (42) is provided with a first water inlet (43) communicating with the nozzle seat (41). The nozzle body (42) is provided with a spray hole (44) communicating with the first water inlet (43). The nozzle body (42) is provided with a locking ring (45) which limits the rotation of the nozzle body (42) relative to the nozzle seat (41). When the nozzle body (42) rotates relative to the nozzle seat (41), the size of the flow gap (48) between the nozzle body (42) and the nozzle seat (41) is adjusted.

2. The laminar flow cooling water spray structure with adjustable spray height according to claim 1, characterized in that: The nozzle body (42) has a conical structure (46) extending toward the nozzle seat (41) at its end, and the first water inlet hole (43) is provided at the end of the conical structure (46). The nozzle seat (41) is provided with a conical hole (47) that mates with the conical structure (46), and the gap between the conical structure (46) and the conical hole (47) is a flow gap (48). The nozzle body (42) has a plurality of second water inlets (49) located above the cone structure (46).

3. The laminar flow cooling water spray structure with adjustable spray height according to claim 2, characterized in that: A rectifier core (410) is provided in front of the water spray hole (44).

4. The laminar flow cooling water spray structure with adjustable spray height according to claim 3, characterized in that: The diameter of the first water inlet (43) is 6mm~8mm, the diameter of the second water inlet (49) is 4mm, and the equivalent diameter of the spray hole (44) is 15mm.

5. The laminar flow cooling water spray structure with adjustable spray height according to claim 4, characterized in that: The nozzle seat (41) has an aperture of 11mm to 13mm.

6. A laminar flow cooling water spray structure with adjustable spray height according to any one of claims 1-5, characterized in that: Adjust the size of the flux gap (48) to adjust the flux area to a range of 50 mm. 2 ~132mm 2 The flow rate range of the nozzle body (42) is 60L / min to 160L / min; When the flow rate of the nozzle body (42) is 60L / min, the height of the water column sprayed from the water jet hole (44) is 300mm. When the flow rate of the nozzle body (42) is 160L / min, the height of the water column sprayed from the water jet hole (44) is 600mm.

7. The laminar flow cooling water spray structure with adjustable spray height according to claim 6, characterized in that: Adjust the rotation angle of each nozzle body (42) relative to the nozzle seat (41) so that the water jet height of each nozzle assembly (4) is consistent.

8. The laminar flow cooling water spray structure with adjustable spray height according to claim 6, characterized in that: The outlet (2) is provided with an internal thread, and the nozzle seat (41) is provided with a threaded part (412) that mates with the internal thread. The nozzle seat (41) is provided with a sealing groove (411) located at the threaded part (412), and a sealing ring is provided in the sealing groove (411).

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