Sealing tool for water pressure test of fan-shaped section

Abstract

The utility model discloses a sealing tool for a hydraulic test of a fan-shaped section, and belongs to the technical field of hydraulic tests. The tool comprises a plug, a pressing plate and a bolt; a plurality of water holes are formed in the fan-shaped section, each water hole is internally provided with one blocking piece, the blocking pieces are matched with the structures of the water holes, and the blocking pieces are connected with the hole walls of the water holes in a sealed mode; the pressing plate is fixed to the fan-shaped section through the bolt, and the bottom face of the pressing plate abuts against the top face of the blocking piece. The problems that in the prior art, a fan-shaped section water pressure test tool is insufficient in sealing performance and prone to failure are solved. According to the bolt, the plug is arranged in the water hole, so that only the sealing performance between the plug and the hole wall of the water hole needs to be guaranteed, the sealing performance can be improved, the sealing pressure can be guaranteed, and the service life of the bolt can be prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of water pressure testing, and specifically relates to a sealing tool for a sector water pressure test. Background Art

[0002] In the core field of the metallurgical industry, the fan segment is an indispensable key equipment in the continuous casting system process. The quality of its working performance is directly related to the uniformity of the subsequent slab rolling thickness, which profoundly affects the overall quality of the steel billet. Therefore, when the fan segment is offline for repair, the water pressure test is an indispensable part. At present, the operation process of the water pressure test mainly relies on the overhead crane equipment in the workshop to accurately lift the fan segment onto the water pressure test bench, and then connect the test water pipeline and pressure pump for strict pressure testing.

[0003] like Figure 1 As shown, the existing hydrostatic test of the sector 1 generally adopts a simple but cost-effective method, that is, the pressure plate 4 is combined with the rubber plate 2 and fastened by the bolt 5. This method is favored by many companies because of its simple operation and low cost. However, its disadvantages cannot be ignored. First, the performance of the rubber plate 2 in end face sealing is limited, and it can usually only remain stable within the pressure range of 0.8 to 1 MPa, which is a certain gap from the pressure required in actual applications. Secondly, according to this method, for every 7 to 8 sectors 1 tested, about 70 to 90 bolts 5 will fail due to reaching the fatigue strength limit and cannot be used any more. Therefore, although the traditional method has certain practicality, it is still necessary to seek more advanced and efficient solutions to ensure the accuracy and safety of the hydrostatic test of the sector 1. Utility Model Content

[0004] The embodiments of the present application provide a fan-shaped segment water pressure test sealing tool, thereby solving the problems of insufficient sealing and easy failure of the fan-shaped segment water pressure test tool in the prior art.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a fan-shaped segment water pressure test sealing tool, including a plug, a pressure plate and a bolt;

[0006] A plurality of water holes are arranged on the sector segment, and a blocking member is arranged in each of the water holes. The blocking member and the water hole are structurally adapted, and the blocking member and the hole wall of the water hole are sealed and connected;

[0007] The pressure plate is fixed to the sector segment by the bolts, and the bottom surface of the pressure plate abuts against the top surface of the blocking member.

[0008] In a possible implementation, the blocking member is a columnar structure, a first annular groove is circumferentially arranged at the lower part of the blocking member, a sealing ring is installed in the first annular groove, the sealing ring is in contact with the hole wall of the water hole, and the blocking member and the hole wall of the water hole are sealed and connected via the sealing ring.

[0009] In a possible implementation, the diameter of the water hole is 30-36 mm; the gap between the side wall of the blocking member and the wall of the water hole is 0.08-0.12 mm, and the compression amount of one side of the sealing ring is 0.12-0.18 mm.

[0010] In a possible implementation, more than two first annular grooves are provided in the circumference of the lower portion of the blocking member, the more than two first annular grooves are spaced apart along the extension direction of the blocking member, and one sealing ring is provided in each of the first annular grooves.

[0011] In a possible implementation, the material of the blocking piece is 45# round steel, the material of the pressure plate is Q235 steel, the specification of the bolt is M16*140mm, and the performance grade of the bolt is 8.8.

[0012] In a possible implementation, a disassembly hole for disassembling the blocking member from the water hole is provided at the upper end of the blocking member.

[0013] In a possible implementation manner, the disassembly hole is a threaded hole.

[0014] In a possible implementation, a ring platform is circumferentially provided at the upper end of the blocking member, the bottom surface of the ring platform abuts against the water receiving plate surface of the sector segment, and the top surface of the ring platform abuts against the bottom surface of the pressure plate.

[0015] In a possible implementation, a second annular groove is provided in the circumference of the bottom surface of the annular platform, a sealing ring is provided in the second annular groove, and the bottom surface of the sealing ring abuts against the water receiving plate surface of the sector segment.

[0016] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0017] The embodiment of the utility model provides a fan-shaped segment water pressure test sealing tool, the pressure plate of the tool limits the blocking piece to prevent the blocking piece from rushing out of the water hole. The utility model sets the blocking piece in the water hole, so it only needs to ensure the sealing between the blocking piece and the hole wall of the water hole. Such a structural form can improve the sealing performance, ensure the sealing pressure, and increase the service life of the bolt, avoiding the problems of insufficient sealing and easy failure of the fan-shaped segment water pressure test tool in the prior art. The water pressure test system has a simple structure, strong practicality, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The present invention is a schematic structural diagram of a fan-shaped segment water pressure test sealing tooling in the prior art.

[0020] Figure 2 This is a schematic structural diagram of the fan-shaped segment water pressure test sealing tooling provided in Example 1 of the utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the blocking member provided in Example 1 of the utility model.

[0022] Figure 4 This is a schematic structural diagram of the fan-shaped segment water pressure test sealing tooling provided in Example 3 of the utility model.

[0023] Figure numerals: 1-sector; 2-rubber sheet; 3-blocking piece; 4-pressure plate; 5-bolt; 6-water hole; 7-first ring groove; 8-sealing ring; 9-disassembly hole; 10-ring platform; 11-sealing ring; 12-water receiving plate surface. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0026] like Figures 1 to 4 As shown, the sector segment water pressure test sealing tool provided by the embodiment of the utility model includes a blocking member 3, a pressure plate 4 and a bolt 5.

[0027] A plurality of water holes 6 are arranged on the sector segment 1 , and a blocking member 3 is arranged in each water hole 6 . The blocking member 3 and the water hole 6 are structurally adapted, and the blocking member 3 and the hole wall of the water hole 6 are sealed and connected.

[0028] The pressure plate 4 is fixed to the sector segment 1 by means of bolts 5 , and the bottom surface of the pressure plate 4 abuts against the top surface of the blocking member 3 .

[0029] It should be noted that the pressure plate 4 is a processed part, and its size is designed and confirmed according to the length, width, depth of the stopper of the water receiving block of the sector segment 1 and the size of the bolt 5 fitting hole. The pressure plate 4 limits the blocking member 3 to prevent the blocking member 3 from rushing out of the water hole 6. The utility model sets the blocking member 3 in the water hole 6, so it is only necessary to ensure the sealing between the blocking member 3 and the hole wall of the water hole 6. Such a structural form can improve the sealing, ensure the sealing pressure, and increase the service life of the bolt 5, avoiding the problems of insufficient sealing and easy failure of the sector segment water pressure test tooling in the prior art. The water pressure test system has a simple structure, strong practicality, and is easy to promote and use.

[0030] In this embodiment, the blocking member 3 is a columnar structure, and a first annular groove 7 is circumferentially arranged at the lower part of the blocking member 3. A sealing ring 8 is installed in the first annular groove 7. The sealing ring 8 contacts the hole wall of the water hole 6. The blocking member 3 and the hole wall of the water hole 6 are sealed and connected via the sealing ring 8.

[0031] It should be noted that the use of the sealing ring 8 can more conveniently realize the sealing connection between the plug 3 and the hole wall of the water hole 6, and after testing, the test pressure can reach 1.4 MPa. Such a structural form has a long service life, and the sealing ring 8 can be replaced regularly, and the operation is simple and the maintenance is convenient. During the test, since the sealing ring 8 is a wearing part, it is prepared according to 130% of the amount.

[0032] In this embodiment, the diameter of the water hole 6 is 30-36 mm, the gap between the side wall of the blocking member 3 and the hole wall of the water hole 6 is 0.08-0.12 mm, and the compression amount of one side of the sealing ring 8 is 0.12-0.18 mm.

[0033] It should be noted that the corresponding plugging member 3 is manufactured according to the aperture of the water hole 6. Such parameter setting can ensure the sealing performance and reduce the difficulty of processing and assembly.

[0034] In the second embodiment, more than two first annular grooves 7 are circumferentially arranged at the lower part of the blocking member 3 . The more than two first annular grooves 7 are arranged at intervals along the extending direction of the blocking member 3 . A sealing ring 8 is arranged in each first annular groove 7 .

[0035] It should be noted that multiple sealing rings 8 have a better sealing effect.

[0036] In this embodiment, the material of the blocking member 3 is 45# round steel, the material of the pressure plate 4 is Q235 steel, the specification of the bolt 5 is M16*140mm, and the performance grade of the bolt 5 is 8.8.

[0037] It should be noted that the bolts 5 and nuts are prepared according to 90 pieces per frame. The selection of the bolts 5 in this embodiment can meet the use requirements of this application and increase its service life. The material of the plug 3 is easy to process and not easy to damage. The material of the pressure plate 4 is low in cost and easy to process.

[0038] In this embodiment, a disassembly hole 9 for disassembling the blocking member 3 from the water hole 6 is provided at the upper end of the blocking member 3 .

[0039] It should be noted that adding the disassembly hole 9 can improve the disassembly efficiency of the blocking member 3 .

[0040] In this embodiment, the disassembly hole 9 is a threaded hole.

[0041] It should be noted that the threaded hole is easy to process, and the disassembly hole 9 can also be a straight hole with a boss.

[0042] like Figure 4 As shown, in the third embodiment, a ring platform 10 is provided in the circumferential direction of the upper end of the blocking member 3 , the bottom surface of the ring platform 10 abuts against the water receiving plate surface 12 of the sector segment 1 , and the top surface of the ring platform 10 abuts against the bottom surface of the pressure plate 4 .

[0043] It should be noted that the ring platform 10 can also play a certain sealing role, increase the contact area between the blocking member 3 and the pressure plate 4, and reduce the pressure.

[0044] In the third embodiment, a second annular groove is provided in the circumferential direction of the bottom surface of the annular platform 10 , a sealing ring 11 is provided in the second annular groove, and the bottom surface of the sealing ring 11 abuts against the water receiving plate surface 12 of the sector segment 1 .

[0045] It should be noted that the sealing ring 11 can further improve the sealing effect.

[0046] In this embodiment, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiment, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A sealing tool for a sector water pressure test, characterized in that: It comprises a blocking member (3), a pressing plate (4) and a bolt (5); A plurality of water holes (6) are arranged on the sector segment (1), each of the water holes (6) is provided with a blocking member (3), the blocking member (3) and the water hole (6) are structurally adapted, and the blocking member (3) and the hole wall of the water hole (6) are sealed and connected; The pressure plate (4) is fixed to the sector segment (1) by means of the bolts (5), and the bottom surface of the pressure plate (4) abuts against the top surface of the blocking member (3).

2. The sealing fixture for the hydrostatic test of a sector according to claim 1, characterized in that: The plugging member (3) is a columnar structure, and a first annular groove (7) is provided in the circumference of the lower part of the plugging member (3). A sealing ring (8) is inserted into the first annular groove (7), and the sealing ring (8) is in contact with the hole wall of the water hole (6). The plugging member (3) and the hole wall of the water hole (6) are sealed and connected via the sealing ring (8).

3. The sealing fixture for the hydrostatic test of a sector according to claim 2, characterized in that: The diameter of the water hole (6) is 30 to 36 mm; the gap between the side wall of the blocking member (3) and the hole wall of the water hole (6) is 0.08 to 0.12 mm; and the compression amount of one side of the sealing ring (8) is 0.12 to 0.18 mm.

4. The sealing fixture for the hydrostatic test of a sector according to claim 2, characterized in that: More than two first annular grooves (7) are arranged in the circumferential direction of the lower part of the blocking member (3), and the more than two first annular grooves (7) are arranged at intervals along the extension direction of the blocking member (3), and a sealing ring (8) is arranged in each of the first annular grooves (7).

5. The sealing fixture for the hydrostatic test of a sector according to claim 2, characterized in that: The material of the blocking member (3) is 45# round steel, the material of the pressure plate (4) is Q235 steel, the specification of the bolt (5) is M16*140mm, and the performance grade of the bolt (5) is 8.

8.

6. The sealing fixture for the hydrostatic test of a sector according to claim 1, characterized in that: The upper end of the blocking member (3) is provided with a disassembly hole (9) for disassembling the blocking member (3) from the water hole (6).

7. The sealing fixture for the hydrostatic test of a sector according to claim 6, characterized in that: The disassembly hole (9) is a threaded hole.

8. The sealing fixture for the hydrostatic test of a sector according to claim 1, characterized in that: An annular platform (10) is provided in the circumferential direction of the upper end of the blocking member (3); the bottom surface of the annular platform (10) abuts against the water receiving plate surface (12) of the fan-shaped segment (1); and the top surface of the annular platform (10) abuts against the bottom surface of the pressure plate (4).

9. The sealing fixture for the hydrostatic test of a sector according to claim 8, characterized in that: A second annular groove is provided in the circumferential direction of the bottom surface of the annular platform (10), a sealing ring (11) is provided in the second annular groove, and the bottom surface of the sealing ring (11) abuts against the water receiving plate surface (12) of the sector segment (1).

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