A leak-sealing clamp for pipelines

Abstract

This utility model relates to the field of pipeline equipment technology, specifically disclosing a leak-sealing clamp for pipelines. The clamp includes a T-shaped screw fixing ring, a T-shaped screw fixed thereon, and a clamping plate, a clamping slide plate, and a locking nut sequentially sleeved on the T-shaped screw. By tightening the locking nut, the invention pushes the slide plate along the screw towards the fixing plate, tensioning the traction tie rod, so that it, the fixing plate, and the slide plate together form a forced seal around the leak point. Its core advantage lies in achieving pressurized leak sealing without production interruption or welding, greatly improving operational safety, shortening maintenance time, and featuring reusability, environmental friendliness, and economy.

Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment technology, and specifically discloses a leak-sealing clamp for pipelines. Background Technology

[0002] In industries such as petroleum, chemical, and metallurgy, media leakage from pipelines or equipment due to corrosion, wear, and other reasons is a common malfunction. Traditional leak sealing methods typically require equipment shutdown, drainage of the medium, depressurization, and then welding or component replacement. This approach has the following significant drawbacks: First, it involves lengthy pre-construction processing: the shutdown, depressurization, and material discharge processes are cumbersome and severely impact production continuity. Second, it is costly: not only does it cause production interruptions and losses, but it also requires the discharge or treatment of residual materials, which is environmentally unfriendly. Third, it poses significant safety risks: especially pressurized welding operations, which carry an extremely high risk of fire and explosion.

[0003] Although there are some pressurized leak sealing techniques, such as injection-type leak sealing, they are complex to operate, require specialized equipment, and sometimes the reliability of the seal is difficult to guarantee.

[0004] Therefore, there is an urgent need for a leak-sealing clamp that is easy to operate, safe and reliable, quick to implement and inexpensive. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a leak-sealing clamp that enables safe and rapid, pressure-sealing of leaks without interrupting production or welding, thereby overcoming the defects mentioned in the background section.

[0006] The technical solution adopted in this utility model is as follows: This utility model provides a leak-sealing clamp for pipelines, including a T-screw 1, a locking nut 2, a traction tie 3, a T-screw fixing ring 4, a clamp sliding plate 5, and a clamp fixing plate 6; The clamping plate 6 and the clamping slide 5 are arranged opposite to each other to form a constraint structure surrounding the leakage point; both the clamping plate 6 and the clamping slide 5 are semi-circular structures, and both ends of the semicircle are equipped with ear-shaped mechanisms. A T-shaped screw fixing ring 4 is provided on the outer side of the midpoint of the semicircle of the clamp slide 5, and a T-shaped screw 1 is connected to the T-shaped screw fixing ring 4; A locking nut 2 is provided on the screw body of the T-screw 1, located between the T-screw fixing ring 4 and the top rod of the T-screw 1; the locking nut 2 rotates and moves on the screw body; The two ends of the traction tendon 3 are respectively connected to the clamp fixing plate 6 and the clamp sliding plate 5; The locking nut 2 is connected to one end of two traction rods 3 on both sides, and the other end of the two traction rods 3 is connected to the ear-shaped mechanism of the clamp plate 6. By tightening the locking nut 2, the traction rod 3 can be tensioned, driving the clamp slide 5 and the clamp stationary plate 6 to move towards each other, thereby achieving a seal on the leakage point.

[0007] Preferably, the inner surfaces of the clamping plate 6 and the clamping slide plate 5 are arc-shaped surfaces adapted to the outer wall of the pipe to be repaired.

[0008] Preferably, the locking nut 2 has upward-curving clamping plates on both sides for locking and fixing one end of the traction rod 3.

[0009] Preferably, the traction brace 3 is a flexible metal strip, a polymer material strip, or a steel wire rope.

[0010] Preferably, the ear-shaped mechanism of the clamping plate 6 and the clamping slide 5 is provided with threaded holes, and after the locking nut 2 is adjusted, the clamping plate 6 and the clamping slide 5 are fixed by bolts.

[0011] Preferably, buffer pads are provided on the inner sides of the clamping plate 6 and the clamping slide plate 5.

[0012] Furthermore, the cushioning pad is made of silicone, rubber, or asbestos.

[0013] Preferably, the T-shaped screw fixing ring 4 is detachably connected to the T-shaped screw 1, and the T-shaped screw 1 and the traction rod 3 can be removed and reused after the leak is plugged.

[0014] The beneficial effects achieved by this utility model are: 1. No need to depressurize and shut down: Leak plugging can be carried out directly while the equipment is under pressure, which greatly shortens maintenance time and reduces production losses.

[0015] 2. Low safety risk: The entire leak sealing process does not involve any hot work (welding), which fundamentally eliminates the risk of fire and explosion.

[0016] 3. Environmentally friendly and economical: It avoids the emission and waste of materials, protects the environment, and saves costs.

[0017] 4. Reusable: Except for the clamping plate and sliding plate, which may need to be customized due to different specifications, core components such as T-screws, locking nuts, and retaining rings can be standardized and reused in different occasions, significantly reducing maintenance costs.

[0018] 5. Simple structure and easy operation: The fixture has a simple structure, is quick to install, and requires relatively low operator skills, which is conducive to rapid response and promotion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the leak-sealing clamp of the present invention.

[0020] In the diagram: 1. T-screw; 2. Locking nut; 3. Traction rod; 4. T-screw fixing ring; 5. Clamping slide; 6. Clamping plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail with reference to the following embodiments. It should be noted that this utility model is not limited to the following embodiments.

[0022] Example 1 like Figure 1 As shown, a leak-sealing clamp for pipelines includes a T-bolt 1, a locking nut 2, a traction tie 3, a T-bolt fixing ring 4, a clamp sliding plate 5, and a clamp fixing plate 6; The clamping plate 6 and the clamping slide 5 are arranged opposite to each other to form a constraint structure surrounding the leak point; both the clamping plate 6 and the clamping slide 5 are semi-circular structures, and both ends of the semicircle are equipped with ear-shaped mechanisms; the inner surfaces of the clamping plate 6 and the clamping slide 5 are arc-shaped surfaces adapted to the outer wall of the pipe to be repaired; the inner surfaces of the clamping plate 6 and the clamping slide 5 are provided with buffer pads, which are made of silicone.

[0023] A T-shaped screw fixing ring 4 is provided on the outer side of the midpoint of the semicircle of the clamp slide 5, and a T-shaped screw 1 is connected to the T-shaped screw fixing ring 4; A locking nut 2 is provided on the screw body of the T-screw 1, located between the T-screw fixing ring 4 and the top rod of the T-screw 1; the locking nut 2 rotates and moves on the screw body; the locking nut 2 has upturned clamping plates on both sides for locking and fixing one end of the traction tendon 3; The two ends of the traction brace 3 are respectively connected to the clamp fixing plate 6 and the clamp sliding plate 5; the traction brace 3 is a polymer material strip; The locking nut 2 is connected to one end of two traction rods 3 on both sides, and the other end of the two traction rods 3 is connected to the ear-shaped mechanism of the clamp plate 6. The clamping plate 6 and the clamping slide 5 have threaded holes on their ear-shaped mechanisms. After the locking nut 2 is adjusted, the clamping plate 6 and the clamping slide 5 are fixed by bolts.

[0024] The T-screw fixing ring 4 is detachably connected to the T-screw 1. After the leak is plugged, the T-screw 1 and the traction rod 3 can be removed and reused.

[0025] During operation, tighten the locking nut 2 with a tool. This action will tighten the traction rod 3, causing the traction rod 3, the clamping plate 6, and the clamping sliding plate 5 to jointly grip the pipeline and apply sufficient pressure at the leak point, thereby preventing media leakage. The sealing effect can be adjusted and maintained by continuously tightening the locking nut 2.

Claims

1. A packoff collar for use with a pipe, the packoff collar comprising: Includes T-screw (1), locking nut (2), traction tie (3), T-screw fixing ring (4), clamp slide (5) and clamp fixing plate (6); The clamping plate (6) and the clamping slide (5) are arranged opposite to each other to form a constraint structure surrounding the leakage point; both the clamping plate (6) and the clamping slide (5) are semi-circular structures, and both ends of the semicircle are equipped with ear-shaped mechanisms. A T-shaped screw fixing ring (4) is provided on the outer side of the midpoint of the semicircle of the clamp slide (5), and a T-shaped screw (1) is connected to the T-shaped screw fixing ring (4). A locking nut (2) is provided on the screw body of the T-screw (1), located between the T-screw fixing ring (4) and the top rod of the T-screw (1); the locking nut (2) rotates and moves on the screw body; The two ends of the traction brace (3) are respectively connected to the clamp fixing plate (6) and the clamp sliding plate (5); The locking nut (2) is connected to one end of two traction rods (3) on both sides, and the other end of the two traction rods (3) is connected to the ear-shaped mechanism of the clamp plate (6); By tightening the locking nut (2), the traction tendon (3) can be tensioned, driving the clamp plate (6) and the clamp slide (5) to move towards each other, thereby achieving the sealing of the leakage point.

2. A patching fixture for pipes according to claim 1, characterized in that, The inner surfaces of the clamp plate (6) and the clamp slide plate (5) are arc-shaped surfaces that are adapted to the outer wall of the pipe to be repaired.

3. A patching fixture for pipes according to claim 1, characterized in that, The locking nut (2) has upturned clamping plates on both sides, which are used to hold and fix one end of the traction rod (3).

4. A patching fixture for pipes according to claim 1, characterized in that, The traction brace (3) is a flexible metal strip, a polymer material strip, or a steel wire rope.

5. The leak-sealing clamp for pipelines according to claim 1, characterized in that, The clamping plate (6) and the clamping slide (5) have threaded holes on their ear-shaped mechanisms. After the locking nut (2) is adjusted, the clamping plate (6) and the clamping slide (5) are fixed by bolts.

6. A patching fixture for pipes according to claim 1, characterized in that, The inner sides of the clamping plate (6) and the clamping slide plate (5) are provided with buffer pads.

7. The leak-sealing clamp for pipelines according to claim 6, characterized in that, The cushioning pad is made of silicone, rubber, or asbestos.

8. The leak-sealing clamp for pipelines according to claim 1, characterized in that, The T-shaped screw fixing ring (4) is detachably connected to the T-shaped screw (1).

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