Repairing device for pipeline compensator

Abstract

A repairing device for a pipeline compensator comprises a shell, a fixed flange, a rib plate, a packing, a filler flange, a movable flange, a bolt, a nut, a water escape valve and an exhaust valve, the shell, the fixed flange, the filler flange and the movable flange are each of a structure with the middle separated, the bottom of the shell passes through the pipeline water escape valve, and the exhaust valve is arranged at the top of the shell; the fixed flange is welded together with one end of the shell through a rib plate, the packing flange is welded together with the other end of the shell, the packing is arranged in the packing box, the movable flange is located on the inner side of the packing flange, the movable flange is connected with the packing flange through a bolt and a nut, the movable flange is provided with a pressing ring, and the pressing ring abuts against the packing. The outer diameter of the hold-down ring is smaller than the inner diameter of the packing box. Under the condition that heat supply is not stopped, a water-leaking pipeline compensator or a water-leaking heat supply pipeline can be repaired, heat supply is not affected, and the repairing speed is high.

Description

Technical Field

[0001] The invention belongs to a pipeline repair device, and in particular relates to a repair device for a pipeline compensator. Background Art

[0002] In order to prevent damage to the pipes due to thermal expansion and contraction, the heating pipes are equipped with bellows compensators. After long-term use, the bellows compensators will corrode, crack and leak. When repairing and replacing the bellows compensators, the heating needs to be stopped for replacement, which seriously affects the heating. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that when replacing a corrugated compensator, it is necessary to stop the heat supply for replacement, thereby seriously affecting the heat supply.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A repairer for a pipeline compensator comprises a shell, a fixed flange, a rib plate, a packing, a stuffing flange, a movable flange, bolts, nuts, a drain valve and an exhaust valve. The shell, the fixed flange, the stuffing flange and the movable flange are all structures separated in the middle. The bottom of the lower half of the shell passes through the pipeline drain valve, and the top of the upper half of the shell is provided with an exhaust valve; the fixed flange is welded to one end of the shell through the rib plate, and the stuffing flange is welded to the other end of the shell; a packing box is formed between the inner wall of the stuffing flange and the outer wall of the heating pipeline, the packing is arranged in the packing box, the movable flange is located on the inner side of the packing flange, the movable flange is connected to the packing flange through bolts and nuts, and the movable flange has a clamping ring, the clamping ring abuts against the packing, and the outer diameter of the clamping ring is smaller than the inner diameter of the packing box.

[0005] A spring washer is sleeved on the bolt inside the nut.

[0006] The bolts are stud bolts.

[0007] The invention can also be directly used for repairing water leakage in heating pipelines.

[0008] The installation and use process of the present invention is as follows: First, the heating pipes at both ends of the leaking corrugated compensator are cleaned according to the length of the present invention, and the surface rust and corrosion spots are polished to be smooth and flat; Put the lower half of the shell under the leaking corrugated compensator, and open the drain valve to allow the leaking water from the heating pipe to flow out through the drain valve; After the position of the lower half of the shell and the heating pipe is adjusted, the upper half of the shell is placed, and the lower half of the shell is adjusted to align the outer edges of the upper half of the shell axially on both sides and flatten the two end surfaces, so that the shell and the heating pipe are concentric, and the lower half of the shell and the upper half of the shell are welded into a whole, and then the circumferential gap between the fixed flange end and the heating pipe is adjusted to be uniform, and the rib plate is fixed with spot welding, and the circumferential gap between the packing flange and the heating pipe is adjusted to be uniform, and then the upper half and lower half of the fixed flange are welded and fixed, the upper half and lower half of the packing flange are welded and fixed, the fixed flange, the rib plate and the shell are welded and fixed, and the packing flange and the shell are welded and fixed; Install the bolts on the packing flange; Place the sealing material constituting the packing into the packing box of the packing flange, move the clamping ring of the flange to press the packing, and tighten and seal the packing by adjusting the nut; After completing the installation of the present invention, open the exhaust valve, close the drain valve, and allow the leaked water to fill the shell. When the shell is full of water, after the exhaust valve discharges water, close the exhaust valve, observe whether the present invention leaks, and then tighten the bolts until there is no leakage.

[0009] Beneficial effects of the present invention: Leaking pipe compensators or leaking heating pipes can be repaired without stopping the heating supply, which does not affect the heating supply and the repair speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a half-section view of the present invention; Figure 2 yes Figure 1 Left view of Figure 3 yes Figure 1 AA section view in the figure; Figure 4 yes Figure 1 The enlarged schematic diagram of point B in FIG. Figure 5 It is a schematic diagram of the location of the packing box of the present invention; Figure 6 is a front view of the fixing flange of the present invention; Figure 7 is a cross-sectional view of a fixed flange of the present invention; Figure 8 is a front view of a packing flange of the present invention; Fig. 9 is a cross-sectional view of a packing flange of the present invention; Fig.10 It is a front view of the movable flange of the present invention; Fig.11 is a cross-sectional view of a movable flange of the present invention; Fig.12 is a cross-sectional view of a housing of the present invention; Fig.13 yes Fig.12 Left view of Fig.14 yes Fig.12 CC section view in. DETAILED DESCRIPTION

[0011] like Figures 1 to 14 As shown, a repairer of a pipeline compensator includes a shell 4, a fixed flange 2, a rib plate 3, a packing 5, a packing flange 6, a movable flange 7, bolts 8, nuts 9, a drain valve 11 and an exhaust valve 12. The shell 4, the fixed flange 2, the packing flange 6 and the movable flange 7 are all structures separated in the middle. The bottom of the lower half of the shell 4 passes through the pipeline drain valve 11, and the top of the upper half of the shell 4 is provided with an exhaust valve 12; the fixed flange 2 is welded to one end of the shell 4 through the rib plate 3, and the packing flange 6 is welded to the other end of the shell 4. A packing box 13 is formed between the inner wall of the packing flange 6 and the outer wall of the heating pipe 1, the packing 5 is arranged in the packing box 13, the movable flange 7 is located on the inner side of the packing flange 6, and the movable flange 7 is connected to the packing flange 6 through bolts 8 and nuts 9. The movable flange 7 has a clamping ring 14, the clamping ring 14 abuts against the packing 5, and the outer diameter of the clamping ring 14 is smaller than the inner diameter of the packing box 13.

[0012] A spring washer 10 is sleeved on the bolt 8 inside the nut 9 .

[0013] The bolt 8 is a stud bolt.

[0014] The packing 5 is asbestos packing.

[0015] The present invention can also be directly used for repairing the water leakage of the heating pipeline 1.

[0016] like Figures 1 to 14 As shown, the installation and use process of the present invention is as follows: First, the heating pipe 1 at both ends of the leaking corrugated compensator 15 is cleaned according to the length of the present invention, and the surface rust and corrosion spots are polished smooth and flat; Put the lower half of the shell 4 under the leaking corrugated compensator 15, and open the drain valve 11 to allow the water leaking from the heating pipe 1 to flow out through the drain valve 11; After the position of the lower half of the shell 4 and the heating pipe 1 is adjusted, the upper half of the shell 4 is placed, and the outer edges of the lower half of the shell 4 and the upper half of the shell 4 are adjusted to be axially aligned and the two end surfaces are flat, so that the shell 4 and the heating pipe 1 are concentric, and the lower half of the shell 4 and the upper half of the shell 4 are welded into a whole, and then the circumferential gap between the fixed flange 2 end and the heating pipe 1 is adjusted to be uniform, and the rib plate 3 is fixed by spot welding, and at the same time, the circumferential gap between the packing flange 6 and the heating pipe 1 is adjusted to be uniform, and then the upper half and the lower half of the fixed flange 2 are welded and fixed, the upper half and the lower half of the packing flange 6 are welded and fixed, the fixed flange 2, the rib plate 3, and the shell 4 are welded and fixed, and the packing flange 6 is welded and fixed to the shell 4; Install bolt 8 on packing flange 6; In this embodiment, the packing 5 is taken as asbestos packing as an example, and the asbestos rope constituting the packing 5 is installed in the packing box 13 of the packing flange 6. When the asbestos rope is installed, the interface of each layer of asbestos rope is staggered by 180 degrees, and the clamping ring 14 of the movable flange 7 presses the packing 5, and the packing 5 is compressed and sealed by adjusting the nut 9; After completing the installation of the present invention, open the exhaust valve 12, close the drain valve 11, and allow the leaked water to flow into the housing 4. When the housing 4 is full of water, after the exhaust valve 12 discharges water, close the exhaust valve 12, observe whether the present invention leaks, and then tighten the bolts 8 until there is no leakage.

Claims

1. A repairer for a pipeline compensator, characterized in that: The invention comprises a shell (4), a fixed flange (2), a rib plate (3), a packing (5), a packing flange (6), a movable flange (7), bolts (8), nuts (9), a drain valve (11) and an exhaust valve (12). The shell (4), the fixed flange (2), the packing flange (6) and the movable flange (7) are all structures separated in the middle. The bottom of the lower half of the shell (4) is provided with a pipeline drain valve (11), and the top of the upper half of the shell (4) is provided with an exhaust valve (12); the fixed flange (2) is welded to one end of the shell (4) through the rib plate (3). The packing flange (6) is welded to the other end of the housing (4), a packing box (13) is formed between the inner wall of the packing flange (6) and the outer wall of the heating pipe (1), the packing (5) is arranged in the packing box (13), the movable flange (7) is located on the inner side of the packing flange (6), the movable flange (7) is connected to the packing flange (6) by bolts (8) and nuts (9), the movable flange (7) has a clamping ring (14), the clamping ring (14) abuts against the packing (5), and the outer diameter of the clamping ring (14) is smaller than the inner diameter of the packing box (13).

2. A repair device for pipeline compensator according to claim 1, characterized in that: A spring washer (10) is sleeved on the bolt (8) inside the nut (9).

3. The repair device for pipeline compensator according to claim 1, characterized in that: The bolt (8) is a stud bolt.

4. The repair device for pipeline compensator according to claim 1, characterized in that: The packing (5) is asbestos packing.

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