Flange leaking stoppage device and flange assembly

Abstract

The flange leaking stoppage device comprises a glue injection bolt used for being arranged in a connecting hole of a flange, and the glue injection bolt is provided with a glue injection hole and a glue outlet hole communicating with the glue injection hole; the glue outlet hole is formed in the portion, located in the flange, of the glue injection bolt so as to inject sealant into the flange. The glue injection bolt is installed in the connecting hole of the flange, the glue injection hole and the glue outlet hole are formed in the glue injection bolt, the glue outlet hole is formed in the part, located in the flange, of the glue injection bolt, and the sealant is injected into the glue injection hole and flows into the flange through the glue outlet hole to block the leakage position of the flange.

Description

Technical Field

[0001] The present disclosure relates to the technical field of flange sealing, and particularly, to a flange leak plugging device and a flange assembly. Background Art

[0002] Currently, when a flange of on-site equipment leaks and the leaking flange cannot be isolated, the gap outside the flange is usually welded shut with electric welding, and at the same time, the flange bolts and nuts are also welded to the flange. However, when the unit is shut down for flange replacement and repair, the welding parts during flange leak plugging must be completely ground clean, and all flange bolts must be cut off, which greatly increases the workload for subsequent processing, and there are certain safety risks in carrying out hot welding on high-temperature and high-pressure flanges. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide a flange leak plugging device and a flange assembly, which can solve the above technical problems.

[0004] To achieve the above purpose, the present disclosure provides a flange leak plugging device, including: a glue injection bolt configured to be disposed in a connection hole of a flange, the glue injection bolt being provided with a glue injection hole and a glue outlet hole communicating with the glue injection hole, the glue outlet hole being disposed on a part of the glue injection bolt located inside the flange to inject sealant into the flange.

[0005] Optionally, the glue injection bolt is used to replace a connection bolt installed in the connection hole.

[0006] Optionally, the flange includes two flange plates, a sealing gasket is provided between the two flange plates, and the sealant is used to be injected into a gap between the two flange plates.

[0007] Optionally, the glue injection bolt is configured as a screw rod, and both ends of the screw rod extend outside the flange to connect fastening nuts.

[0008] Optionally, the glue injection bolt includes a threaded section and a smooth section, the threaded sections are disposed at both ends of the smooth section, the smooth section is located inside the flange and the diameter of the smooth section is smaller than that of the threaded section, and the glue outlet hole is disposed on the smooth section.

[0009] Optionally, the glue injection hole extends in the same direction as the axial direction of the glue injection bolt, and an inlet of the glue injection hole is disposed at an end of the glue injection bolt.

[0010] Optionally, a plurality of glue outlet holes are provided along the circumferential direction of the glue injection bolt.

[0011] Optionally, the flange leak plugging device further includes a sealing ring with adjustable tightness, and the sealing ring is sleeved on the outer side of the flange and located at the gap between two flange plates.

[0012] Optionally, the width of the sealing ring is greater than the width of the gap.

[0013] The second object of the present disclosure is to provide a flange assembly, including: a flange; and the above-mentioned flange leak plugging device, and the flange leak plugging device is arranged in the connection hole of the flange.

[0014] Through the above technical solution, the injection bolt is installed in the connection hole of the flange. The injection bolt is provided with an injection hole and a glue outlet hole, and the glue outlet hole is arranged on the part of the injection bolt located inside the flange. By injecting sealant into the injection hole, the sealant flows into the flange through the glue outlet hole to plug the leakage part of the flange.

[0015] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the flange leak plugging device in the present disclosure.

[0018] Description of the Reference Numerals

[0019] 1. Injection bolt; 11. Threaded section; 12. Smooth section; 2. Injection hole; 3. Glue outlet hole; 4. Fastening nut; 5. Sealing gasket; 6. Sealing ring; 7. Flange; 71. Flange plate; 72. Connection hole. Specific Embodiments

[0020] The following will describe in detail the specific embodiments of the present disclosure with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0021] In the present disclosure, unless otherwise stated, the orientation terms such as "inside, outside" refer to the inside and outside relative to the contour of the component or structure itself. In addition, it should be noted that the terms such as "first, second" are used to distinguish one element from another, and do not have sequence and importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

[0022] As Figure 1As shown, the present disclosure provides a flange leak-proof device, including: a glue injection bolt 1, which is used to be set in the connecting hole 72 of the flange 7, the glue injection bolt 1 is provided with a glue injection hole 2 and a glue outlet hole 3 connected to the glue injection hole 2, and the glue outlet hole 3 is arranged on the part of the glue injection bolt 1 located in the flange 7 to inject sealant into the flange 7.

[0023] Through the above technical solution, the glue injection bolt 1 is installed in the connecting hole 72 of the flange 7, and the glue injection hole 2 and the glue outlet hole 3 are opened on the glue injection bolt 1, and the glue outlet hole 3 is arranged on the part of the glue injection bolt 1 located in the flange 7. By injecting sealant into the glue injection hole 2, the sealant flows into the flange 7 through the glue outlet hole 3 to seal the leakage of the flange 7. The operation is simple and the price is low, and the safety risk of damaging the flange 7 during hot welding on the high-temperature and high-pressure flange 7 can be effectively avoided.

[0024] As an optional embodiment, the glue-injected bolt 1 is used to replace the connecting bolt installed in the connecting hole 72. When the flange 7 leaks, the glue-injected bolt 1 is used to replace the original connecting bolts in sequence. The successive replacement will not loosen the flange 7. The glue-injected bolt 1 is installed in the original connecting hole 72 without the need for re-drilling, and the glue-injected bolt 1 can also play a connecting role while plugging the leak.

[0025] As an optional embodiment, the flange 7 includes two flange plates 71, and a sealing gasket 5 is provided between the two flange plates 71. The sealing gasket 5 serves to seal the two flange plates 71. The sealant is used to be injected into the gap between the two flange plates 71. Because the sealing gasket 5 is provided between the two flange plates 71, there will be a gap between the two flange plates 71. The leakage of the flange 7 is generally caused by the leakage of the sealing gasket 5. Therefore, the sealant is injected into the gap between the flange plates 71 to seal the gap. Because a plurality of connecting holes 72 are provided circumferentially on the flange 7, a plurality of injection bolts 1 are also provided. The sealant is evenly spread to the entire gap through the plurality of injection bolts 1.

[0026] Optionally, the injection bolt 1 is constructed as a screw rod, both ends of which extend out of the flange 7 to connect with the fastening nut 4, and both ends of the screw rod are connected with the fastening nut 4, which makes it easier to disassemble. Even if one of the fastening nuts 4 is rusted and cannot be rotated, it can be disassembled through the other fastening nut 4. Of course, in other embodiments, the injection bolt 1 can also be constructed as a screw, one end of the screw is provided with a screw head, and the other end passes through the connecting hole 72 of the two flange plates 71 and is fastened by the fastening nut 4.

[0027] Optionally, the glue-injection bolt 1 includes a threaded section 11 and a smooth section 12. The threaded sections 11 are arranged at both ends of the smooth section 12. The smooth section 12 is located inside the flange 7 and the diameter of the smooth section 12 is smaller than that of the threaded section 11. The glue outlet hole 3 is arranged on the smooth section 12. The connection hole 72 is a smooth hole. The outer diameter of the threaded section 11 is consistent with the aperture of the connection hole 72. The glue outlet hole 3 is arranged on the smooth section 12, and the diameter of the smooth section 12 is smaller than that of the threaded section 11, that is, the diameter of the smooth section 12 is smaller than the aperture of the connection hole 72. In this way, there will be a gap between the smooth section 12 and the wall of the connection hole 72 to form a glue outlet space, so that the sealant can flow out of the glue outlet hole 3 smoothly. On the one hand, the sealant can seal the connection hole 72, and on the other hand, the sealant can flow into the gap between the two flange discs 71 through the glue outlet space, preventing the gap between the glue-injection bolt 1 and the connection hole 72 from being too small to cause the sealant to be difficult to enter the gap between the two flange discs 71.

[0028] As an alternative embodiment, the glue injection hole 2 extends in the same direction as the axis of the glue-injection bolt 1, and the inlet of the glue injection hole 2 is arranged at the end of the glue-injection bolt 1. The sealant is injected from the end of the glue-injection bolt 1 through a glue gun. On the one hand, the inlet of the glue injection hole 2 is located outside the flange 7, and on the other hand, since the side of the glue-injection bolt 1 is provided with a fastening nut 4, the inlet arranged at the end will not be blocked by the fastening nut 4.

[0029] As an alternative embodiment, a plurality of glue outlet holes 3 are arranged along the circumferential direction of the glue-injection bolt 1. The plurality of glue outlet holes 3 are evenly spaced, and the glue outlet holes 3 are perpendicular to the glue injection hole 2. Arranging a plurality of glue outlet holes 3 can make the sealant exit faster and can spread evenly around to the gap, quickly filling the gap.

[0030] As an alternative embodiment, the flange disc 71 leak-proof device further includes an adjustable seal ring 6. The seal ring 6 is sleeved outside the flange 7 and is located at the gap between the two flange discs 71. Before installing the glue-injection bolt 1, the seal ring 6 is sleeved at the gap between the two flange discs 71. For example, the seal ring 6 can be a hoop or a rubber ring, etc. The seal ring 6 seals the gap between the two flange discs 71. On the one hand, it can play a role in plugging leaks, and on the other hand, it prevents the sealant from flowing out of the gap.

[0031] Optionally, the width of the seal ring 6 is greater than the width of the gap, ensuring that the seal ring 6 completely seals the gap and improving the sealing performance.

[0032] The second object of the present disclosure is to provide a flange assembly, including: a flange 7; and the above-mentioned flange leak-proof device. The flange leak-proof device is arranged in the connection hole 72 of the flange 7, and a leak-proof flange can be formed. The sealant is injected into the gap of the flange 7 through the glue-injection bolt 1, thereby preventing the flange 7 from leaking.

[0033] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0034] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any appropriate manner. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0035] Furthermore, any combination can be made among the various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A flange plugging device, characterized in that: include: The glue injection bolt is used to be set in the connecting hole of the flange. The glue injection bolt is provided with a glue injection hole and a glue outlet hole connected to the glue injection hole. The glue outlet hole is arranged on the part of the glue injection bolt located in the flange to inject sealant into the flange.

2. The flange leak plugging device according to claim 1, characterized in that: The glue injection bolt is used to replace the connecting bolt installed in the connecting hole.

3. The flange leak plugging device according to claim 1 or 2, characterized in that: The flange comprises two flange plates, a sealing gasket is arranged between the two flange plates, and the sealant is used to be injected into the gap between the two flange plates.

4. The flange leak-proof device according to claim 3, characterized in that: The glue injection bolt is constructed as a screw rod, and both ends of the screw rod extend out of the flange to connect with a fastening nut.

5. The flange leak-proof device according to claim 4, characterized in that: The glue injection bolt includes a threaded section and a smooth section, the threaded section is arranged at both ends of the smooth section, the smooth section is located inside the flange and the diameter of the smooth section is smaller than the diameter of the threaded section, and the glue outlet is arranged in the smooth section.

6. The flange leak plugging device according to claim 1, characterized in that: The glue injection hole extends in the same direction as the axial direction of the glue injection bolt, and the inlet of the glue injection hole is arranged at the end of the glue injection bolt.

7. The flange leak-proof device according to claim 1, characterized in that: The glue outlet holes are multiplely arranged along the circumference of the glue injection bolt.

8. The flange leak-proof device according to claim 3, characterized in that: The flange leak-proof device also includes a sealing ring with adjustable tightness, which is sleeved on the outer side of the flange and located in the gap between the two flange plates.

9. The flange leak-proof device according to claim 8, characterized in that: The width of the sealing ring is greater than the width of the gap.

10. A flange assembly, characterized in that: include: Flange; as well as The flange leak-proof device according to any one of claims 1 to 9, wherein the flange leak-proof device is arranged in the connecting hole of the flange.

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