A flange plugging tool

Abstract

The utility model discloses a kind of flange leaking stoppage tools, it is related to flange leaking stoppage technical field, to solve the technical problem of longer flange leaking stoppage implementation time existing in prior art, the device includes clamp and inserts seal, clamp is fixedly connected to flange outer edge, glue injection hole is set on clamp, glue injection hole two sides are respectively provided with the plug-in hole of setting along the diameter direction of flange, inserts seal is used in pairs, inserts seal respectively after passing through the plug-in hole of glue injection hole two sides inserts into the flange disc gap between leakage point two sides, glue injection hole and plug-in hole are sealed by plugging bolt, so that the fan-shaped area between two inserts seal forms new airtight space, the utility model is used for flange rapid plugging.

Description

Technical Field

[0001] This utility model relates to the field of flange sealing technology, and in particular to a flange sealing tool. Background Technology

[0002] A flange connection involves fixing two pipes, fittings, or equipment to a flange plate, placing a gasket between the two flange plates, and then tightening them together with bolts to complete the connection. The flange gasket is a ring made of a material that can undergo plastic deformation and has a certain strength.

[0003] Existing flange sealing devices utilize steel straps to bind the flanges together, creating a new sealing structure. Then, bolts on one flange are removed, and a caulking gun is connected to the bolt holes to inject sealing compound between the two flanges. During the injection process, the pressure in the pipeline causes the sealing compound to flow towards the lower pressure area between the flanges, preventing it from directly reaching the leak. Therefore, this sealing method is time-consuming. Furthermore, because the compound is injected through the flange bolt holes, these holes become filled with sealing compound, making it impossible to reseal with bolts. This reduces the structural strength of the flange connection and increases the risk of re-leakage. Therefore, finding a quick and effective way to seal leaking flanges is an urgent problem that needs to be solved.

[0004] The applicant has discovered that the prior art has at least the following technical problems:

[0005] 1. During the injection of sealant, the pressure in the pipeline causes the sealant to flow first to the flange gap where the pressure is lower, and the sealant cannot directly reach the leak. Therefore, this sealing method takes a long time to implement.

[0006] 2. The flange bolt holes connected to the glue gun will be filled with sealant, making it impossible to seal them again with bolts. This reduces the structural strength of the original flange connection and can easily lead to leakage again. Utility Model Content

[0007] The purpose of this utility model is to provide a flange sealing tool to solve the technical problem of long implementation time in the prior art for flange sealing. The various technical effects of the preferred technical solution among the many technical solutions provided by this utility model are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This utility model provides a flange sealing tool including a clamp and inserts. The clamp is fixedly connected to the outer edge of the flange and has an injection hole. The injection hole has insertion through holes on both sides along the flange diameter. The inserts are used in pairs. After passing through the insertion through holes on both sides of the injection hole, the inserts are inserted into the flange gap on both sides of the leak point. The injection hole and the insertion through holes are sealed by sealing bolts, so that the fan-shaped area between the two inserts forms a new sealed space.

[0010] Preferably, the clamp includes an upper clamp and a lower clamp, and the upper clamp and the lower clamp are respectively provided with integrally formed ear plates. The upper clamp and the lower clamp are fastened to the outer edge of the flange and fixedly connected by the ear plates.

[0011] Preferably, the insert is a cuboid structure and the end of the insert that is inserted into the flange gap is wedge-shaped.

[0012] Preferably, the inner hole shape of the plug-in through hole near the flange is square, and the inner hole shape of the plug-in through hole away from the flange is round.

[0013] Preferably, the inner wall of the plug-in through-hole section with a circular inner hole shape is provided with threads.

[0014] Preferably, a sealing ring is provided between the ear plates of the upper clamp and the lower clamp, and an O-ring is provided on the contact surfaces of the upper clamp and the lower clamp with the flange.

[0015] This utility model provides a flange sealing tool. A clamp is fixedly connected to the outer edge of the flange. The clamp has an injection hole, and insertion through holes along the flange diameter are provided on both sides of the injection hole. Inserted seals pass through the insertion through holes on both sides of the injection hole and are inserted into the flange gap on both sides of the leak point. The injection hole and insertion through holes are sealed with sealing bolts, creating a new sealed space in the fan-shaped area between the two seals. Compared to traditional sealing methods that require filling the entire flange gap, this utility model establishes a new fan-shaped sealing space for rapid sealing. Sealing adhesive is simply filled directly into the new fan-shaped sealing space around the leak point. The reduced injection space shortens the amount of sealing adhesive injected and ultimately reduces the injection time, thus reducing the flange sealing implementation time. Furthermore, this utility model also reduces the amount of sealing adhesive used, achieving rapid sealing with less adhesive. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a flange sealing tool according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the upper clamp flange facing the surface of this utility model.

[0019] In the diagram: 1. Injection bolt; 2. Upper clamp; 3. Ear plate; 4. Lower clamp; 5. Insert seal; 6. Insert through hole; 7. Injection hole; 8. Sealing bolt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding technical features. The drawings are for illustrative purposes only and are not necessarily drawn to scale.

[0022] A schematic diagram of an embodiment of the flange sealing tool of this utility model is shown below. Figure 1 As shown, the device includes a clamp and insert seals 5. The clamp is fixedly connected to the outer edge of the flange and has an injection hole 7. Insert through holes 6 are provided on both sides of the injection hole 7 along the flange diameter. The insert seals 5 are used in pairs. After passing through the insert through holes 6 on both sides of the injection hole 7, the insert seals 5 are inserted into the flange gap on both sides of the leakage point. The injection hole 7 and the insert through holes 6 are sealed by sealing bolts 8, so that the fan-shaped area between the two insert seals 5 forms a new sealed space.

[0023] In this embodiment, when a flange leaks, the clamp is fixedly connected to the outer edge of the flange, and the insert 5 is passed through the insertion through hole 6 on the clamp until the insert 5 is partially inserted into the flange gasket on both sides of the leak point. After the injection hole 7 and the insertion through hole 6 are sealed with the sealing bolt 8, a fan-shaped sealing area is equivalent to being established on both sides of the flange leak point, with the insert 5 as the two sides and the section of the clamp cut by the insert 5 as the arc. This area becomes a new sealed space and is used for leak sealing. Compared with the traditional leak sealing method that requires filling the entire flange gap, the technical solution described in this utility model establishes a fan-shaped sealing area to achieve the purpose of rapid leak sealing. It is only necessary to directly fill the fan-shaped sealing space around the leak point with the sealant. The new fan-shaped sealing space is smaller than the original leak sealing space. The reduction of the injection space shortens the injection amount of sealant and ultimately reduces the injection time, thereby reducing the flange leak sealing implementation time. At the same time, the technical solution described in this utility model also reduces the amount of sealant used, ultimately achieving the purpose of rapid sealing with less sealant.

[0024] See Figure 1 As another implementation method, when the pressure inside the pipe connected to the flange is low, after fixing the clamp to the outer edge of the flange and completing the insertion connection of the plug-in 5, it is only necessary to seal the injection hole 7 and the plug-in through hole 6 with the sealing bolt 8 to achieve the purpose of creating a new sealing area on both sides of the flange leakage point. Since the pressure inside the pipe connected to the flange is low, it is not necessary to press in the sealing glue to achieve the purpose of sealing the leak, reducing the step of injecting the sealing glue, thereby achieving a faster and more economical flange sealing technology effect.

[0025] As another embodiment of this utility model, see [link to relevant documentation]. Figure 1 The upper clamp 2 can be provided with multiple insertion through holes 6. When only two inserts 5 need to be inserted, the extra insertion through holes 6 can be used to release air in the flange gap during glue injection, so as to complete the glue injection faster.

[0026] When multiple inserts 5 are inserted, the increased number of inserts 5 creates multiple fan-shaped sealing spaces in the sealing structure. Therefore, this device can enhance the sealing effect by sealing a single leak point through multiple fan-shaped sealing spaces, or it can achieve point-to-point sealing when there are multiple leak points by sealing multiple leak points one by one through multiple fan-shaped sealing spaces. The technical solution of opening multiple insert through holes 6 in the upper clamp 2 makes the sealing method of this device more flexible and versatile, and more practical.

[0027] As an optional implementation, the clamp includes an upper clamp 2 and a lower clamp 4. The upper clamp 2 and the lower clamp 4 are respectively provided with integrally formed ear plates 3. The upper clamp 2 and the lower clamp 4 are fastened to the outer edge of the flange and fixedly connected by the ear plates 3.

[0028] See Figure 1The clamp is divided into two semi-circular upper clamp 2 and lower clamp 4. The upper clamp 2 and lower clamp 4 are fastened to the outer edge of the flange and bolted together through the ear plates 3 on the upper clamp 2 and lower clamp 4.

[0029] As an optional implementation, the insert 5 has a cuboid structure and one end of the insert 5 that is inserted into the flange gap has a wedge-shaped structure.

[0030] In this embodiment, in order to better insert one end of the insert 5 into the flange gasket between the two flanges, the end of the insert 5 inserted into the flange gap is formed into a wedge structure.

[0031] The insert 5 has a cuboid structure, which makes it less likely for the insert 5 to rotate when inserted into the plug-in through hole 6 and the gap between the two flanges, thereby reducing the airtightness of the sealing structure.

[0032] As an optional implementation, the inner hole shape of the plug-in through hole 6 near the flange side is square, and the inner hole shape of the plug-in through hole 6 away from the flange side is circular.

[0033] See Figure 2 The inner hole of the plug-in through hole 6 near the flange is square in shape to match the rectangular shape of part of the plug seal 5. At the same time, the square inner hole of the plug-in through hole 6 further defines the position of the plug seal 5 to prevent the plug seal 5 from rotating under external force.

[0034] As an optional implementation, the insert through-hole 6 segments with a circular inner hole shape have threads on their inner walls.

[0035] See Figure 1 The inner hole of the plug-in through hole 6, which is away from the flange, is circular in shape and has threads on its inner wall for better connection with the sealing bolt 8.

[0036] That is, the inner hole of the plug-in through hole 6 is half square and half circular. The square shape defines the position of the plug seal 5, and the circular shape is used to connect with the sealing bolt 8. The inner diameter of the circular shape is larger than the longest diagonal length of the plug seal 5 to ensure that the plug seal 5 can pass smoothly through the plug-in through hole 6.

[0037] As an optional implementation, a sealing ring is provided between the contact surfaces of the ear plates 3 of the upper clamp 2 and the lower clamp 4, and an O-ring is provided between the contact surfaces of the upper clamp 2 and the lower clamp 4 and the flange to achieve a better sealing effect.

[0038] Furthermore, the sealing ring can be made of nitrile rubber.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A flange sealing tool, characterized in that: Includes clamps and inserts (5), wherein, The clamp is fixedly connected to the outer edge of the flange. The clamp is provided with an injection hole (7). Insertion through holes (6) are provided on both sides of the injection hole (7) along the flange diameter direction. The insert seals (5) are used in pairs. The insert seals (5) pass through the insertion through holes (6) on both sides of the injection hole (7) and are inserted into the flange gap on both sides of the leakage point. The injection hole (7) and the insertion through holes (6) are sealed by the sealing bolts (8), so that the fan-shaped area between the two insert seals (5) forms a new sealed space.

2. The flange sealing tool according to claim 1, characterized in that: The clamp includes an upper clamp (2) and a lower clamp (4). The upper clamp (2) and the lower clamp (4) are respectively provided with an integrally formed ear plate (3). The upper clamp (2) and the lower clamp (4) are fastened to the outer edge of the flange and fixedly connected by the ear plate (3).

3. The flange sealing tool according to claim 1, characterized in that: The insert (5) has a cuboid structure and the end of the insert (5) inserted into the flange gap is wedge-shaped.

4. The flange sealing tool according to claim 3, characterized in that: The inner hole of the plug-in through hole (6) near the flange is square, and the inner hole of the plug-in through hole (6) away from the flange is circular.

5. The flange sealing tool according to claim 4, characterized in that: The inner wall of the plug-in through hole (6) section, which has a circular inner hole shape, is threaded.

6. The flange sealing tool according to claim 2, characterized in that: A sealing ring is provided between the contact surfaces of the upper clamp (2) and the lower clamp (4) and the ear plate (3), and an O-ring is provided between the contact surfaces of the upper clamp (2) and the lower clamp (4) and the flange.

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