Upper-layer cold water flow guide assembly and strip steel cooling system

Abstract

The utility model discloses an upper-layer cold water flow guide assembly and a strip steel cooling system, and belongs to the technical field of strip steel cooling. The upper-layer cold water flow guide assembly is used for guiding upper-layer cold water on the two sides of the layer cooling upper collecting pipe. The upper-layer cold water flow guide assembly comprises a flow guide piece and a connecting piece. The flow guide piece is provided with a flow guide groove, the flow guide groove is formed below one side of the layer cooling upper header, and the distance between the bottom wall of the flow guide groove and the layer cooling upper header is increased in the direction from the middle of the layer cooling upper header to the side close to the flow guide piece. The connecting piece is connected to the layer cooling upper collecting pipe and the flow guiding piece. After the design is adopted, upper-layer cold water discharged from one side of the layer cooling upper collecting pipe falls into the flow guide groove and is discharged out of the strip steel along the inclined direction of the flow guide groove, so that the temperature drop of the edge part of the strip steel is reduced, and the problem of edge crack of the strip steel is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of strip steel cooling, and particularly relates to an upper-layer cold water flow guide assembly and a strip steel cooling system. BACKGROUND

[0002] Carbon tool steel with a carbon content of 0.45% or more has characteristics such as high strength, high hardness and excellent wear resistance, and is widely used in fields such as hardware cutters, chains, automobile sealing gaskets and sewing machine needles. Typical steel grades are 65Mn, C75S, SK85 and the like.

[0003] In order to obtain good spheroidizing rate and surface quality, there are special temperature requirements when producing this type of steel, and the strip steel needs to be cooled by a laminar cooling device according to the target temperature set for coiling, so as to ensure the product performance of the strip steel.

[0004] In the related art, after the strip steel is cooled by the laminar cooling, edge crack defects often occur, which seriously affects the strip steel yield and downstream process production, and becomes a difficult problem plaguing the industry. CONTENT OF THE UTILITY MODEL

[0005] The application aims to at least solve the technical problem that edge crack defects often occur after the strip steel is cooled by the laminar cooling. To this end, the application provides an upper-layer cold water flow guide assembly and a strip steel cooling system.

[0006] In a first aspect, the application provides an upper-layer cold water flow guide assembly for guiding the upper-layer cold water on one side of a laminar cooling upper header, the upper-layer cold water flow guide assembly comprising:

[0007] a flow guide member having a flow guide groove, the flow guide groove being arranged below one side of the laminar cooling upper header, and the distance between the bottom wall of the flow guide groove and the laminar cooling upper header increasing in a direction from the middle of the laminar cooling upper header to the side close to the flow guide member;

[0008] a connecting member connected to the laminar cooling upper header and the flow guide member.

[0009] In some embodiments, the flow guide member comprises:

[0010] two side plates, the two side plates being oppositely arranged, and the side plates being connected to the connecting member;

[0011] a bottom plate connected to the two side plates, and the distance between the bottom plate and the laminar cooling upper header increasing in a direction from the middle of the laminar cooling upper header to the side close to the flow guide member, and the bottom plate and the two side plates combining to form the flow guide groove.

[0012] In some embodiments, the side plate has a first connecting hole near one side of the layer cooling upper header, and the connecting piece is connected with the first connecting hole; and the bottom plate is abutted with the layer cooling upper header near one end of the layer cooling upper header.

[0013] In some embodiments, the connecting piece comprises:

[0014] two first connecting portions, which are oppositely arranged and respectively located at two sides of the layer cooling upper header;

[0015] a second connecting portion, which is located above the layer cooling upper header, connected with the two first connecting portions, and arranged at an angle with the first connecting portions;

[0016] two hook portions, which are respectively connected with two sides of the first connecting portions away from the first connecting portions, and respectively arranged in the two first connecting holes.

[0017] In some embodiments, the upper layer cooling water flow guide assembly is provided with two connecting pieces, one of which is connected with the side plate near the middle part of the layer cooling upper header, and the other of which is connected with the side plate away from the middle part of the layer cooling upper header.

[0018] In some embodiments, the side plate has a first connecting hole near one side of the middle part of the layer cooling upper header, and one of the connecting pieces is connected with the first connecting hole; and the side plate has a second connecting hole away from the middle part of the layer cooling upper header, and the other of the connecting pieces is connected with the second connecting hole.

[0019] In some embodiments, the connecting piece comprises:

[0020] two first connecting portions, which are oppositely arranged and respectively located at two sides of the layer cooling upper header;

[0021] a second connecting portion, which is located above the layer cooling upper header, connected with the two first connecting portions, and arranged at an angle with the first connecting portions;

[0022] two hook portions, which are respectively connected with two sides of the first connecting portions away from the first connecting portions;

[0023] The two hook portions of one of the connecting pieces are respectively arranged in the two first connecting holes, and the two hook portions of the other of the connecting pieces are respectively arranged in the two second connecting holes.

[0024] In some embodiments, the upper layer cooling water flow guide assembly further comprises a roller (140), which is installed on the first connecting portion.

[0025] In some embodiments, the upper layer cold water flow guide assembly is provided with two connectors; the side plate has a first connecting hole near one side of the middle part of the upper layer cold water header, and has a second connecting hole away from the other side of the middle part of the upper layer cold water header; the connectors include a chain and two carabiners, the chain is arranged on the upper layer cold water header, and the carabiners are connected to the chain and the flow guide.

[0026] In a second aspect, the embodiments of the present application provide a strip cooling system, comprising:

[0027] A roller table is configured to convey the strip;

[0028] An upper layer cold water header is arranged above the roller table;

[0029] The upper layer cold water flow guide assembly of the first aspect is connected to the upper layer cold water header through the connectors.

[0030] The utility model has at least the following beneficial effects:

[0031] The upper layer cold water flow guide assembly is used for guiding the upper layer cold water on one side of the upper layer cold water header. The upper layer cold water flow guide assembly comprises a flow guide and a connector. The flow guide has a flow guide groove, which is arranged below one side of the upper layer cold water header and increases in spacing between the bottom wall of the flow guide groove and the upper layer cold water header from the middle part of the upper layer cold water header to the side close to the flow guide. The connector is connected to the upper layer cold water header and the flow guide. In this way, the upper layer cold water discharged from one side of the upper layer cold water header falls into the flow guide groove and is discharged to the outside of the strip along the inclined direction of the flow guide groove, thereby reducing the temperature drop of the edge of the strip and improving the problem of edge crack of the strip. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0033] Figure 1 The structure of the upper layer cold water flow guide assembly in some embodiments of the present application is shown.

[0034] Figure 2 The structure of the connector in some embodiments of the present application is shown. Figure 1 The upper layer cold water flow guide assembly is installed on the upper layer cold water header.

[0035] Figure 3 The structure of the connector in some embodiments of the present application is shown.

[0036] Figure 4 A structural schematic diagram of the upper layer cold water flow guide assembly in some other embodiments of the present application is shown.

[0037] Figure 5 A structural schematic diagram of the upper layer cold water flow guide assembly in some other embodiments of the present application is shown. Figure 4 A structural schematic diagram of the upper layer cold water flow guide assembly installed on the layer cold upper header is shown.

[0038] Figure 6 A structural schematic diagram of the upper layer cold water flow guide assembly in some other embodiments of the present application is shown.

[0039] Figure 7 A structural schematic diagram of the upper layer cold water flow guide assembly in some other embodiments of the present application is shown. Figure 6 A structural schematic diagram of the upper layer cold water flow guide assembly installed on the layer cold upper header is shown.

[0040] Figure 8 A structural schematic diagram of the strip steel cooling system in some embodiments of the present application is shown.

[0041] Reference signs: 100-upper layer cold water flow guide assembly, 110-flow guide piece, 110a-flow guide groove, 111-side plate, 111a-first connecting hole, 111b-second connecting hole, 112-bottom plate, 120-connecting piece, 121-first connecting part, 122-second connecting part, 123-hook part, 124-iron chain, 125-climbing buckle, 140-roller, 200-layer cold upper header, 300-roller way, 400-strip steel. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0044] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should do the broad sense understanding, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In addition, in the utility model, the description such as "first", "second" and the like is only for the purpose of description, and can not be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features.Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature.In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on that the ordinary skilled person in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0046] The inventor found that the main reason for the edge crack of the strip steel 400 is that, in the related art, in order to adapt the laminar cooling device to strip steels 400 of different widths, the upper laminar cooling water of the upper laminar cooling header 200 of the laminar cooling device covers a wide width range, which leads to that, when producing a strip steel 400 of small width, the upper laminar cooling water on both sides of the upper laminar cooling header 200 is sprayed on the edge of the strip steel 400 along the width direction of the strip steel 400, which causes the temperature of the edge of the strip steel 400 to decrease rapidly, and the phase transformation of the structure of the strip steel 400 occurs due to the excessively low temperature of the edge of the strip steel 400, thereby causing the edge crack problem to occur frequently.

[0047] Therefore, in the related art, the strip steel 400 after the laminar cooling exists the technical problem that the edge crack defect often occurs.This application embodiment provides an upper laminar cooling water flow guide assembly 100 and a strip steel cooling system, which can at least solve the technical problem that the edge crack defect often occurs after the laminar cooling of the strip steel 400 to a certain extent.

[0048] The upper laminar cooling water flow guide assembly 100 of the application guides the upper laminar cooling water discharged from one side of the upper laminar cooling header 200 to the outside of the strip steel 400 through the flow guide piece 110, avoids the upper laminar cooling water discharged from one side of the upper laminar cooling header 200 from falling on the edge of the strip steel 400, reduces the temperature drop of the edge of the strip steel 400, and thereby improves the edge crack problem.

[0049] The application will be described below in combination with the drawings and with reference to specific embodiments:

[0050] As Figure 1 And Figure 2As shown, the upper layer cold water guiding assembly 100 is used to guide the upper layer cold water on one side of the upper layer cooling header 200. The upper layer cold water guiding assembly 100 comprises a guiding member 110 and a connecting member 120. The guiding member 110 has a guiding groove 110a, which is arranged below one side of the upper layer cooling header 200 and the distance between the bottom wall of the guiding groove 110a and the upper layer cooling header 200 increases from the middle of the upper layer cooling header 200 to the side close to the guiding member 110. The connecting member 120 is connected to the upper layer cooling header 200 and the guiding member 110.

[0051] Reference can be made to Figure 8 As shown, the strip steel 400 is below the upper layer cooling header 200 and is conveyed by the roller way 300 below. The upper layer cooling header 200 sprays the upper layer cold water downward, which is sprayed on the upper surface of the strip steel 400.

[0052] The guiding member 110 comprises the guiding groove 110a, which is used to guide the guiding member 110. In use, one end of the guiding groove 110a is high and the other end is low. The side close to the middle region of the upper layer cooling header 200 is high and the side far away from the middle region of the upper layer cooling header 200 is low. The guiding groove 110a is arranged below one side of the upper layer cooling header 200. In use, as shown in Figure 2 、 Figure 5 and Figure 7 As shown, the upper layer cold water guiding assembly 100 is installed on both sides of the upper layer cooling header 200. In this way, the upper layer cold water discharged from both sides of the upper layer cooling header 200 will fall into the guiding groove 110a and be discharged outside the strip steel 400 along the inclined direction of the guiding groove 110a, so as to reduce the temperature drop of the edge of the strip steel 400 and improve the problem of edge crack of the strip steel 400.

[0053] In use, the connecting member 120 is connected to the upper layer cooling header 200 and the guiding member 110. The connecting member 120 supports the guiding member 110, so that the guiding member 110 can be stably arranged below the upper layer cooling header 200. The connecting manner of the connecting member 120 with the upper layer cooling header 200 and the guiding member 110 can be various, such as clamping, bolt connection, binding connection and the like, which are not limited in the present application.

[0054] The structure of the guiding member 110 can be various. In order to simplify the structure of the guiding member 110 and facilitate the processing of the upper layer cold water guiding assembly 100 of the present application, as shown in Figure 1As shown, in some embodiments, the flow guide 110 includes a base plate 112 and two side plates 111. The two side plates 111 are arranged opposite to each other and are connected to the connector 120. The base plate 112 is connected to the two side plates 111. Along the direction from the middle of the laminar cooling upper manifold 200 to the side near the flow guide 110, the distance between the base plate 112 and the laminar cooling upper manifold 200 increases, and the base plate 112 and the two side plates 111 together form a flow guide groove 110a. With this configuration, users can use existing scrap steel plates in the factory to manufacture the flow guide 110 by welding or other methods, which facilitates the manufacture of the flow guide 110.

[0055] Along the direction from the middle of the upper cooling manifold 200 to the side near the guide member 110, the distance between the base plate 112 and the upper cooling manifold 200 increases. That is, please refer to... Figure 2 As shown, located Figure 2 The bottom plate 112 of the guide component 110 on the left side is higher on the right and lower on the left; located in Figure 2 The bottom plate 112 of the guide component 110 on the right side is higher on the left and lower on the right.

[0056] In some embodiments of this application, the guide 110 is a cable trough.

[0057] like Figure 1 and Figure 2 As shown, in some embodiments, the side plate 111 has a first connection hole 111a on the side near the upper cooling manifold 200, and the connector 120 is connected to the first connection hole 111a; the bottom plate 112 abuts against the upper cooling manifold 200 at one end near the upper cooling manifold 200.

[0058] Both side plates 111 are provided with first connection holes 111a, and the connector 120 is connected to both first connection holes 111a. The connector 120 is connected to the side of the side plate 111 near the upper cooling manifold 200. With this design, the tilt angle of the guide component 110 is limited by the contact between the upper cooling manifold 200 and the bottom plate 112, thereby simplifying the connection relationship between the connector 120 and the first connection holes 111a. This allows the connector 120 to be directly hung in the first connection hole 111a, or the connector 120 to be a rope and directly tied in the first connection hole 111a, which facilitates the implementation of the upper cold water guide assembly 100.

[0059] like Figure 3As shown, in some embodiments, the connector 120 includes a second connecting portion 122, two first connecting portions 121, and two hook portions 123. The two first connecting portions 121 are disposed opposite each other and are located on both sides of the upper cooling manifold 200. The second connecting portion 122 is located above the upper cooling manifold 200, connected to the two first connecting portions 121, and is disposed at an angle to the first connecting portions 121. The two hook portions 123 are respectively connected to the side of the two first connecting portions 121 away from the first connecting portions 121, and are respectively disposed in the two first connecting holes 111a.

[0060] The connector 120 is U-shaped, with a gap between the two first connecting parts 121. A second connecting part 122 is located between the two first connecting parts 121, connecting them together. The connector is angled, which can be a right angle, an acute angle, or an obtuse angle. In use, the first connecting parts 121 are located above the laminar cooling upper manifold 200, along the length of the strip 400. The two second connecting parts 122 and two hooks 123 are located on both sides of the laminar cooling upper manifold 200, with the two hooks 123 passing through the two first connecting holes 111a. With this design, the laminar cooling upper manifold 200 supports the first connecting parts 121, and the first connecting parts 121 support the second connecting parts 122, the hooks 123, and the guide member 110. The connector 120 and the guide member 110 are connected by the hooks 123 hanging in the first connecting holes 111a, facilitating the connection and disassembly of the connector 120 and the guide member 110.

[0061] In some embodiments, the connector 120 is formed by bending a metal wire.

[0062] like Figure 4 and Figure 5 As shown, in some embodiments, the upper cold water diversion assembly 100 is provided with two connectors 120, one connector 120 is connected to the side of the side plate 111 near the middle of the upper cold water manifold 200, and the other connector 120 is connected to the side of the side plate 111 away from the middle of the upper cold water manifold 200.

[0063] Two connectors 120 are respectively connected to both sides of the side plate 111. Under the action of the two connectors 120, the guide 110 is tilted. The setting of the two connectors 120 helps to ensure the stability of the guide 110.

[0064] In some embodiments, the side plate 111 has a first connecting hole 111a on the side near the middle of the upper cooling manifold 200, and one connector 120 is connected to the first connecting hole 111a; the side plate 111 away from the middle of the upper cooling manifold 200 has a second connecting hole 111b, and another connector 120 is connected to the second connecting hole 111b. Both side plates 111 of the flow guide 110 have first connecting holes 111a and second connecting holes 111b, and one connector 120 is connected to both first connecting holes 111a simultaneously, and the other connector 120 is connected to both second connecting holes 111b simultaneously. The connector 120 can be connected to the first connecting holes 111a and the second connecting holes 111b by means of plugging, snapping, or other methods.

[0065] In some embodiments, the connector 120 includes a second connecting portion 122, two first connecting portions 121, and two hook portions 123. The two first connecting portions 121 are disposed opposite to each other and are located on both sides of the upper cooling manifold 200. The second connecting portion 122 is located above the upper cooling manifold 200, connected to the two first connecting portions 121, and is disposed at an angle to the first connecting portions 121. The two hook portions 123 are respectively connected to the side of the two first connecting portions 121 away from the first connecting portions 121; the two hook portions 123 of one connector 120 are respectively disposed in the two first connecting holes 111a, and the two hook portions 123 of the other connector 120 are respectively disposed in the two second connecting holes 111b.

[0066] The connector 120 is U-shaped, with a gap between the two first connecting parts 121. The second connecting part 122 is located between the two first connecting parts 121, connecting them together. It is angled, which can be a right angle, an acute angle, or an obtuse angle. In use, the first connecting parts 121 are located above the laminar cooling upper manifold 200, along the length of the strip 400. The two second connecting parts 122 and the two hooks 123 are located on both sides of the laminar cooling upper manifold 200. The two hooks 123 of one connector 120 pass through the two first connecting holes 111a, and the two hooks 123 of the other connector 120 pass through the two second connecting holes 111b. With this design, the laminar cooling upper manifold 200 supports the first connecting parts 121, and the first connecting parts 121 support the second connecting parts 122, the hooks 123, and the guide member 110. The connector 120 and the guide 110 are connected by hooking the hook 123 into the first connecting hole 111a and the second connecting hole 111b, which facilitates the connection and disassembly of the connector 120 and the guide 110.

[0067] like Figure 4 and Figure 5As shown in the drawings, in some embodiments, the upper layer cold water flow guide assembly 100 further comprises a roller 140 mounted on the first connecting part 121. Two rollers 140 are arranged on each of the two first connecting parts 121. After such design, the roller 140 is in rolling contact with the upper end surface of the layer cold upper header 200, and the first connecting part 121 is not in contact with the upper end surface of the layer cold upper header 200, which helps to reduce the friction between the upper layer cold water flow guide assembly 100 and the layer cold upper header 200, and facilitates the movement of the upper layer cold water flow guide assembly 100 along the width direction of the strip steel, thereby facilitating the adjustment of the position of the upper layer cold water flow guide assembly 100.

[0068] In some embodiments, two rollers 140 are arranged on each of the first connecting parts 121.

[0069] As shown in the drawings, Figure 6 and Figure 7 In some embodiments, the upper layer cold water flow guide assembly 100 is provided with two connecting pieces 120; the side plate 111 has a first connecting hole 111a near one side of the middle part of the layer cold upper header 200, and has a second connecting hole 111b away from the other side of the middle part of the layer cold upper header 200; the connecting piece 120 comprises a chain 124 and two carabiners 125, the chain 124 is arranged on the layer cold upper header 200, and the carabiner 125 is connected to the chain 124 and the flow guide piece 110.

[0070] The structure of the carabiner 125 is known to those skilled in the art, and can be referred to the patents with the publication numbers CN118492923A and CN220532876U, which will not be described in detail in this application. The carabiner 125 of one of the connecting pieces 120 is simultaneously arranged in the first connecting hole 111a and the hole of the chain 124 of the connecting piece 120, thereby connecting the chain 124 of the connecting piece 120 and the flow guide piece 110; the carabiner 125 of the other connecting piece 120 is simultaneously arranged in the second connecting hole 111b and the hole of the chain 124 of the connecting piece 120, thereby connecting the chain 124 of the connecting piece 120 and the flow guide piece 110.

[0071] As shown in the drawings, Figure 8 Based on the same inventive concept, the embodiments of the present application further provide a strip steel cooling system, which comprises a roller table 300, a layer cold upper header 200 and the above-mentioned upper layer cold water flow guide assembly 100. The roller table 300 is used for conveying the strip steel 400; the layer cold upper header 200 is arranged above the roller table 300; and the connecting piece 120 of the upper layer cold water flow guide assembly 100 is connected to the layer cold upper header 200. Since the strip steel cooling system comprises the above-mentioned upper layer cold water flow guide assembly 100, it naturally has all the beneficial effects of the upper layer cold water flow guide assembly 100, which will not be described in detail here.

[0072] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0073] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0074] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An upper layer cold water deflector assembly, characterized by, The upper layer cold water guide assembly (100) is arranged on one side of the layer cold upper header (200) to guide the flow of the upper layer cold water. The guide member (110) has a guide groove (110a) arranged below one side of the layer cold upper header (200) and gradually increasing in distance between the bottom wall of the guide groove (110a) and the layer cold upper header (200) from the middle of the layer cold upper header (200) to the side close to the guide member (110). The connecting member (120) is connected to the layer cold upper header (200) and the guide member (110).

2. The upper cold water guide assembly of claim 1, wherein, The guide member (110) comprises: Two side plates (111) oppositely arranged and connected to the connecting member (120); A bottom plate (112) connected to the two side plates (111) and gradually increasing in distance between the bottom plate (112) and the layer cold upper header (200) from the middle of the layer cold upper header (200) to the side close to the guide member (110), and the bottom plate (112) and the two side plates (111) together form the guide groove (110a).

3. The upper cold water deflector assembly of claim 2, wherein, The side plate (111) close to one side of the layer cold upper header (200) has a first connecting hole (111a), and the connecting member (120) is connected to the first connecting hole (111a); and the end of the bottom plate (112) close to the layer cold upper header (200) abuts against the layer cold upper header (200).

4. The upper cold water deflector assembly of claim 3, wherein, The connecting member (120) comprises: Two first connecting parts (121) oppositely arranged and respectively located on both sides of the layer cold upper header (200); A second connecting part (122) located above the layer cold upper header (200) and connected to the two first connecting parts (121), and the second connecting part (122) is arranged at an angle with the first connecting part (121); Two hook parts (123) respectively connected to one side of the two first connecting parts (121) away from the first connecting part (121), and the two hook parts (123) are respectively arranged in the two first connecting holes (111a).

5. The upper cold water deflector assembly of claim 2, wherein, The upper layer cold water guide assembly (100) is arranged with two connecting members (120), one of which is connected to one side of the side plate (111) close to the middle of the layer cold upper header (200), and the other is connected to one side of the side plate (111) away from the middle of the layer cold upper header (200).

6. The upper cold water deflector assembly of claim 5, wherein, The side plate (111) close to one side of the layer cold upper header (200) has a first connecting hole (111a), and one of the connecting members (120) is connected to the first connecting hole (111a); and the side plate (111) away from one side of the layer cold upper header (200) has a second connecting hole (111b), and the other connecting member (120) is connected to the second connecting hole (111b).

7. The upper cold water deflector assembly of claim 6, wherein, The connecting member (120) comprises: Two first connecting parts (121) are oppositely arranged and located on both sides of the layer cooling upper header (200); A second connecting part (122) is located above the layer cooling upper header (200) and connected to the two first connecting parts (121), and the second connecting part (122) is arranged at an angle with the first connecting parts (121); Two hook parts (123) are respectively connected to the two first connecting parts (121) away from the first connecting parts (121) on one side; The two hook parts (123) of one of the connecting parts (120) are respectively arranged in the two first connecting holes (111a), and the two hook parts (123) of the other connecting part (120) are respectively arranged in the two second connecting holes (111b).

8. The upper cold water deflector assembly of claim 7, wherein, The upper layer cooling water guide assembly (100) further comprises a roller (140), and the roller (140) is installed on the first connecting part (121).

9. The upper cold water deflector assembly of claim 2, wherein, The upper layer cooling water guide assembly (100) is provided with two connecting parts (120); the side plate (111) has a first connecting hole (111a) near one side of the middle part of the layer cooling upper header (200), and has a second connecting hole (111b) away from the other side of the middle part of the layer cooling upper header (200); the connecting part (120) comprises an iron chain (124) and two mountain climbing buckles (125), the iron chain (124) is arranged on the layer cooling upper header (200), and the mountain climbing buckles (125) are connected to the iron chain (124) and the guide part (110).

10. A strip steel cooling system characterized by, Comprise: A roller table (300) for conveying a strip steel (400); A layer cooling upper header (200) is arranged above the roller table (300); The connecting part (120) of the upper layer cooling water guide assembly (100) is connected with the layer cooling upper header (200).

Images