Pressurized plugging device for corrugated compensator of gas pipeline
By designing a corrugated compensator device for gas pipelines with pressure and leakage, the fastening of the sealing silicone layer and the clad plate, combined with the tightening of the support bolts and the compression bolts, the problem of difficulty in sealing the leakage point of the corrugated compensator is solved, and the safe operation and efficient sealing effect of the gas pipeline are achieved.
Patent Information
- Application Number
- CN202420280987.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-06
AI Technical Summary
After years of use, existing gas pipeline corrugated compensators are prone to leakage due to corrosion or bumps, especially in high-pressure environments, which cannot be effectively blocked, resulting in production and pressure stop.
A gas pipeline corrugated compensator with pressure and leakage plugging device is designed, including a support part, a substrate and a clad plate. By buckle the sealing silicone layer and the clad plate, the tightening of the support bolts and the compression bolts are combined to achieve the sealing of the leakage point.
This device can effectively seal the leakage point of the corrugated pipe, ensure the safe operation of the gas pipeline, avoid production and pressure stoppage caused by the leakage point, and has a simple process, convenient material selection, and a wide range of application.
Smart Images
Figure CN222616334U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gas pipeline transportation, in particular to a pressure plugging device for a corrugated compensator of a gas pipeline. Background Art
[0002] Blast furnace gas, coke oven gas, and converter gas are three common types of gas in metallurgical enterprises. The gas is produced by high-temperature reactions in blast furnaces, coke ovens, and converters, and then sent to the gas purification system through gas pipelines. After gas purification, it is sent to the downstream process through the pipeline network. Taking blast furnace gas as an example, the gas contains dust and free water; in addition, it has the characteristics of high temperature and high pressure, and the gas pipeline expands and contracts due to heat and cold, and then displacement and vibration occur. As a pipeline displacement compensator, the bellows mainly plays the following three roles: absorbing and compensating for the axial, lateral, and angular thermal deformation of the pipeline; absorbing equipment vibration and reducing the impact of equipment vibration on the pipeline; absorbing the deformation of the pipeline caused by earthquakes and ground subsidence. Therefore, the long-life and stable operation of the bellows is the basis for the safe and effective operation of the gas pipeline network and the foundation of the entire smelting system.
[0003] After years of installation and use, the bellows compensator may have leaks due to corrosion or bumps. It cannot be sealed during normal production and high pressure, or when there is flammable gas and welding is not possible, the only option is to stop production and pressure.
[0004] The patent CN211716013U discloses an online plugging tool for local minor damage of a corrugated compensator of a high-pressure gas pipeline, including a bracket, an adjusting bolt, and a pressure plate. The two ends of the bracket are respectively fixed on the end pipes at the two ends of the bellows, and the bracket is provided with at least two threaded through holes; one side surface of the pressure plate is concave and matches the surface of the leaking part; the adjusting bolt passes through the threaded through hole to press the pressure plate against the surface of the bellows, so that the concave surface of the pressure plate fits the leaking part in the middle, and the adjusting bolt presses the pressure plate along the radial direction of the bellows. In this patent, in order to make the bolt press the pressure plate against the surface of the bellows, it is necessary to design the direction of the threaded through hole on the bracket to be radial to the side of the pressure plate away from the bellows, so it is necessary to design the pressure plate to be a plane on the side away from the bellows or to design the bracket to have an inclined threaded through hole, which increases the difficulty of manufacturing the pressure plate or the bracket. Utility Model Content
[0005] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a pressure plugging device for a gas pipeline corrugated compensator.
[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows:
[0007] A gas pipeline corrugated compensator pressure plugging device comprises a support part, a base plate and a pressure covering plate, wherein the pressure covering plate is pressed on the surface of the corrugated pipe around the leakage point, the base plate is provided with clamping bolts, the clamping bolts press against the pressure covering plate, the clamping bolts are symmetrically arranged on both sides of the support part and the corrugated pipe at the leakage point, the base plate is arranged between the support part and the corrugated pipe and the base plate abuts against the support part, and an adjusting support is arranged on the base plate, the adjusting support is used to adjust the distance between the base plate and the pressure covering plate and fix the pressure covering plate.
[0008] Optionally, the regulating support member includes supporting bolts arranged on the base plate, and the supporting bolts are symmetrically arranged on both sides of the supporting part.
[0009] Optionally, a sealing silicone layer is provided between the compression plate and the bellows.
[0010] Optionally, the support portion is a fixing rod, and the fixing rod is fixedly arranged on the surface of the corrugated pipe.
[0011] Optionally, the supporting portion is a steel strap, and the steel strap is bound around the corrugated tube.
[0012] Optionally, four nuts are equidistantly arranged on the circumference of the base plate, and the clamping bolts are threadedly connected to the nuts.
[0013] Optionally, the nut is welded on the substrate.
[0014] Optionally, the cladding plate is a U-shaped structure that fits the outer surface of the corrugated pipe.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model places the base plate between the fixing rod and the bellows, takes the fixing rod as the supporting point, and buckles the sealing silicone layer and the pressure plate on the leaking point. By tightening the supporting bolts and the clamping bolts and clamping the pressure plate, the leaking point of the bellows can be sealed. The existing pull rod on the bellows compensator can be used as the fixing rod; if the leaking point is not below the pull rod, a steel band can be used to wrap around the bellows as a supporting part. There are no special requirements for the steel plate and the pressure plate, the manufacturing process is simple, the material selection is convenient, the application range is wide, and the pressure plugging effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a gas pipeline corrugated compensator under pressure leak plugging device;
[0018] Figure 2 It is a structural schematic diagram for reflecting the distribution of the clamping bolts and the supporting bolts on the base plate;
[0019] In the figure: 1. fixing rod; 2. base plate; 3. pressing plate; 4. sealing silicone layer; 5. bellows; 6. clamping bolt; 7. nut; 8. supporting bolt. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] like Figure 1 As shown, the following technical solution is provided: a gas pipeline corrugated compensator pressure plugging device, including a support part, a base plate 2 and a pressure plate 3, the pressure plate 3 is a U-shaped structure fitted with the outer surface of the bellows 5, the pressure plate 3 is pressed on the surface of the bellows 5 around the leakage point, and a sealing silicone layer 4 is arranged between the pressure plate 3 and the bellows 5 to enhance the sealing effect, and a clamping bolt 6 is arranged on the base plate 2, and the clamping bolt 6 presses the pressure plate 3, and the clamping bolt 6 is symmetrically arranged on both sides of the support part and the bellows 5 at the leakage point. In this embodiment, four nuts 7 are equidistantly welded on the periphery of the base plate 2, and the clamping bolt 6 is threadedly connected to the nut 7, the base plate 2 is arranged between the support part and the bellows 5 and the base plate 2 abuts against the support part, and an adjusting support is provided on the base plate 2, and the adjusting support is used to adjust the distance between the base plate 2 and the pressure plate and fix the pressure plate.
[0022] The regulating support member includes a support bolt 8 threadedly connected to the base plate 2, and there are two support bolts 8, which are symmetrically arranged on both sides of the support part. The support part can be a fixing rod 1, and the fixing rod 1 is fixedly arranged on the surface of the bellows 5. When the leak point is just below the existing pull rod on the bellows 5, the pull rod can be used as the fixing rod 1. When the dew point is not below the existing pull rod on the bellows 5, a fixing rod 1 can be welded, or a steel band can be wrapped around the bellows 5 as a support part.
[0023] Place the base plate 2 between the fixing rod 1 or the steel band and the leak point, use the fixing rod 1 or the steel band as the supporting point, place the sealing silicone layer 4 under the pressure plate 3 and buckle it on the leak point, gradually tighten the supporting bolts 8 and the clamping bolts 6, so that the base plate 2 is pressed against the fixing rod 1 or the steel band, and the pressure plate 3 is pressed under the supporting bolts 8 and the clamping bolts 6, so that the corrugated compensator can be plugged under pressure.
[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gas pipeline corrugated compensator under pressure plugging device, characterized in that: The invention comprises a supporting part, a base plate (2) and a pressing plate (3), wherein the pressing plate (3) is pressed on the surface of the bellows (5) around the leakage point, and a clamping bolt (6) is arranged on the base plate (2), and the clamping bolt (6) presses against the pressing plate (3), and the clamping bolt (6) is symmetrically arranged on both sides of the supporting part and the bellows (5) at the leakage point, and the base plate (2) is arranged between the supporting part and the bellows (5) and the base plate (2) is in contact with the supporting part, and an adjusting support is arranged on the base plate (2), and the adjusting support is used to adjust the distance between the base plate (2) and the pressing plate (3) and fix the pressing plate (3).
2. A gas pipeline corrugated compensator under pressure plugging device according to claim 1, characterized in that: The regulating support member comprises support bolts (8) arranged on the base plate (2), and the support bolts (8) are symmetrically arranged on both sides of the support portion.
3. The gas pipeline corrugated compensator under pressure plugging device according to claim 1 is characterized in that: A sealing silicone layer (4) is provided between the pressing plate (3) and the corrugated tube (5).
4. The gas pipeline corrugated compensator under pressure plugging device according to claim 1 is characterized in that: The support portion is a fixing rod (1), and the fixing rod (1) is fixedly arranged on the surface of the corrugated tube (5).
5. The gas pipeline corrugated compensator under pressure plugging device according to claim 1 is characterized in that: The supporting part is a steel binding belt, and the steel binding belt is bound around the corrugated tube (5).
6. The gas pipeline corrugated compensator under pressure plugging device according to claim 1 is characterized in that: Four nuts (7) are equidistantly arranged on the circumference of the base plate (2), and the clamping bolts (6) are threadedly connected to the nuts (7).
7. A gas pipeline corrugated compensator under pressure plugging device according to claim 6, characterized in that: The nut (7) is welded on the base plate (2).
8. The gas pipeline corrugated compensator under pressure plugging device according to claim 1 is characterized in that: The pressing plate (3) is a U-shaped structure that fits the outer surface of the corrugated pipe (5).