Rapid repairing and replacing device for glass fiber reinforced plastic pipeline

Abstract

The utility model discloses a quick repairing and replacing device for a glass fiber reinforced plastic pipeline, which relates to the technical field of glass fiber reinforced plastic pipelines and comprises a replacing pipeline and a connecting component, and the connecting component comprises a first lining piece, a second lining piece and a fastening connecting piece; the first lining part comprises a first adaptive pipe, a first connecting ring and a second connecting ring which are coaxially connected in sequence; the second lining part comprises a second adaptive pipe, a third connecting ring is arranged on the outer wall of the second adaptive pipe, and the second adaptive pipe is inserted into a replacement pipeline and is sealed; the second connecting ring can be arranged on the outer wall of the second adapter pipe in a sleeving manner and is sealed; the fastening connecting piece can fasten the first connecting ring and the third connecting ring. According to the utility model, the special design of the connecting assembly and the replacement pipeline is adopted, so that the damaged part of the glass fiber reinforced plastic pipeline can be quickly positioned, repaired and replaced, the repair time is obviously shortened, the production halt time and the maintenance cost are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber reinforced plastic pipelines, in particular to a device for quickly repairing and replacing glass fiber reinforced plastic pipelines. Background Art

[0002] In the field of oil and gas extraction and transportation, FRP pipelines have long become an indispensable core material in the industry due to their excellent corrosion resistance and unparalleled low fluid resistance. However, when FRP pipelines are damaged or aged, they may not only quietly lead to oil and gas leakage, but are more likely to cause unpredictable serious safety accidents, posing a threat to production safety and environmental protection that cannot be ignored. Therefore, when FRP pipelines are damaged or aged, we must quickly and accurately identify the root cause of the problem, accurately cut off the damaged and aged parts, and then quickly install the corresponding replacement pipes. This measure is intended to ensure that the FRP pipeline can continue to and stably perform its transmission function, thereby ensuring the smooth and safe extraction and transportation of oil and gas. This timely and professional maintenance is not only responsible for production safety, but also respects and contributes to environmental protection.

[0003] Currently, the repair and replacement of FRP pipelines mainly relies on professional service companies, but this traditional repair method faces multiple challenges in actual application. First, the repair process is lengthy, involving multiple complex steps such as damage location, cutting, cleaning, component preparation, installation, welding and condensation treatment, which takes up to 5-6 hours, seriously affecting the well opening rate and increasing production costs. Secondly, due to the special material properties and structural characteristics of FRP pipelines, the repair work is highly dependent on professional technology and equipment. Once technical difficulties or equipment failures are encountered, the progress of repairs will be seriously hindered. More seriously, the safety hazards in the repair process cannot be ignored. Improper operation or equipment failure may lead to oil and gas leakage, which in turn may cause serious accidents such as fire and explosion, posing a serious threat to personnel, equipment and the environment.

[0004] The announcement number is CN207094030U, which discloses a glass fiber reinforced plastic quick-connect conversion joint, including a conversion joint body, a connecting shaft, a sleeve, a connecting ring, a bolt hole, a connecting plate, a through hole, glass fiber reinforced plastic, a protective layer, a reinforcement layer, a connecting groove, a positioning piece, a plastic cladding, a sealing sleeve, a sealing ring, a connecting ring, an elastic retaining ring, an internal thread, a connecting shaft joint, an epoxy resin sealant layer and a circular ring. A connecting shaft is provided on the left side of the conversion joint body, and the interior of the connecting shaft is connected to the glass fiber reinforced plastic. A sleeve is provided on the right side of the conversion joint body, and the interior of the sleeve is provided with an internal thread, and a connecting ring is provided on the outside of the sleeve. Connecting plates are provided at both ends of the connecting ring, a through hole is opened on the outside of the circular ring, and a protective layer is provided on the outside of the glass fiber reinforced plastic.

[0005] The device requires the application of protective layers, reinforcement layers and positioning devices, and needs to wait for each layer to solidify before it can be put into production. The waiting time is long and cannot meet the needs of oil and gas production sites, seriously affecting the well opening rate.

[0006] Publication number CN204692878U discloses a quick-connect structure for fiberglass reinforced plastic (FRP) pipes. The structure comprises a cylindrical connecting sleeve, the inner surfaces of which are connected to the outer cylindrical surfaces of the FRP pipes at both ends through a clearance fit. An annular positioning protrusion is provided in the middle of the inner surface of the connecting sleeve, separating the glass pipes at both ends. Adhesive is evenly applied to the inner surface of the connecting sleeve and the outer cylindrical surface of the FRP pipe at the connection point. The connecting sleeve facilitates a sealed connection between the two FRP pipes, enabling rapid butt-jointing of the FRP pipes.

[0007] This device requires that adhesive be evenly coated on the connecting pipes. The pipeline can only be put into production after the adhesive takes effect. This cannot meet the needs of oil and gas production sites and seriously affects the well opening rate.

[0008] The announcement number is CN215000179U, which discloses a quick repair tool for oilfield fiberglass reinforced plastic pipelines, including a pair of pipe connectors, an adjustment short-circuit is provided between the pipe connectors, and an outer pipe protective cover is provided on the outside of the pipe connectors. The pipe connector includes a tubular pipe body, one end of the pipe body is provided with a pipe flange, and the outer wall of the pipe body is provided with multiple O-ring grooves. The adjustment short-circuit includes a tubular connecting steel pipe, and a short-circuit flange is provided on both sides of the connecting steel pipe.

[0009] The prior art has the problem of great difficulty in installing the seal, and requires multiple workers to work together to install it.

[0010] In short, the technical solutions of the above-disclosed technologies, the technical problems to be solved and the beneficial effects produced are all different from those of the present utility model. Regarding the more technical features, technical problems to be solved and the beneficial effects of the present utility model, the above-disclosed technical documents do not provide any technical inspiration. Utility Model Content

[0011] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a rapid repair and replacement device for glass fiber reinforced plastic pipelines.

[0012] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0013] A fiberglass reinforced plastic pipeline rapid repair and replacement device includes a replacement pipe and a connecting assembly, wherein the connecting assembly includes a first lining member, a second lining member, and a fastening connector; the first lining member includes a first adapter pipe, a first connecting ring, and a second connecting ring that are coaxially connected in sequence; the second lining member includes a second adapter pipe, a third connecting ring is provided on the outer wall of the second adapter pipe, and the second adapter pipe is inserted into the replacement pipe and sealed; the second connecting ring can be sleeved on the outer wall of the second adapter pipe and sealed; the fastening connector can fasten the first connecting ring and the third connecting ring.

[0014] Furthermore, the outer diameter of the first connecting ring is larger than the outer diameter of the glass fiber reinforced plastic pipeline, and the outer diameter of the third connecting ring is larger than the outer diameter of the glass fiber reinforced plastic pipeline.

[0015] Furthermore, the fastening connection member includes a first locking member and a second locking member;

[0016] Specifically, the first locking member is annular, an outer wall of the first locking member is provided with an external thread, and an inner wall of the first locking member is provided with a first limiting ring;

[0017] Specifically, the second locking member is annular, an inner wall of the second locking member is provided with an internal thread, and an inner wall of the second locking member is provided with a second limiting ring;

[0018] Specifically, the second locking piece is sleeved on the outer wall of the replacement pipe, the first locking piece is sleeved on the outer wall of the fiberglass reinforced plastic pipeline, the first limiting ring is used to contact the end face of the first connecting ring, and the second limiting ring is used to contact the end face of the third connecting ring. By screwing the first locking piece and the second locking piece together, the first lining piece and the second lining piece are tightened.

[0019] Furthermore, a first fluororubber sealing ring is provided on the outer wall of the first adapter pipe, and the first fluororubber sealing ring is used for sealing the first adapter pipe and the glass fiber reinforced plastic pipeline;

[0020] Specifically, a front fluororubber sealing ring is provided on the outer wall of the second adapter tube in front of the third connecting ring, and the front fluororubber sealing ring is used for sealing cooperation between the third connecting ring and the second connecting ring;

[0021] Specifically, a rear fluororubber sealing ring is provided on the outer wall of the second adapter pipe behind the third connecting ring, and the rear fluororubber sealing ring is used for sealing the second adapter pipe and the second fiberglass reinforced plastic pipeline.

[0022] Furthermore, the first connecting ring is a disc-shaped ring, and the second connecting ring is a tubular ring; the second adapter tube and the first adapter tube have the same tube shape.

[0023] Furthermore, the first adapter tube, the first connecting ring and the second connecting ring are integrally formed, and the second adapter tube and the third connecting ring are integrally formed.

[0024] Furthermore, two of the first fluororubber sealing rings are provided, two of the front fluororubber sealing rings are provided, and two of the rear fluororubber sealing rings are provided.

[0025] Furthermore, the outer diameters of the first connecting ring, the second connecting ring, and the third connecting ring are equal; and the inner diameter of the first locking piece is equal to the outer diameter of the first connecting ring.

[0026] Furthermore, the replacement pipe length = FRP pipe notch length - assembly width × 2;

[0027] Specifically, the assembly width is greater than the width of the first connecting ring + the width of the second connecting ring + the width of the fitting section between the second adapter tube and the second connecting ring + the width of the third connecting ring.

[0028] Furthermore, after the first lining member and the second lining member are locked by the fastening connector, movement of the connecting assembly cannot release the seal between the first adapter pipe and the fiberglass pipeline, and movement of the connecting assembly cannot release the seal between the second adapter pipe and the replacement pipe.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. This utility model adopts a special connection component and replacement pipe design, uses an inner lining to cooperate with the seal, and uses male and female thread locking nuts to cooperate with the seal on the outside. The design of the fastening connection ensures the stability and reliability of the connection; it can realize the rapid positioning and repair and replacement of damaged parts of the fiberglass reinforced plastic pipeline, significantly shortening the repair time, reducing production downtime and maintenance costs, and improving work efficiency.

[0031] 2. The utility model adopts a miniaturized design and fully considers the special material properties and structural characteristics of the FRP pipeline. Through a simple combination of lining parts and connectors, it realizes the effective connection and sealing of the FRP pipeline, reduces the dependence on professional technology and equipment, makes the maintenance work simple and convenient, and reduces the skill requirements for maintenance personnel.

[0032] 3. The utility model adopts sealing measures such as fluorine rubber sealing rings to ensure that the repaired fiberglass reinforced plastic pipeline has good sealing performance, effectively prevents the risk of oil and gas leakage, and improves operational safety.

[0033] 4. The utility model conducts simulated field tests on the specifications of small-diameter 25MPa fiberglass reinforced plastic pipelines, and the strength test pressure is 35MPa, with no leakage, achieving an effective sealing effect.

[0034] 5. The utility model has a wide range of applications and can be used in any fiberglass reinforced plastic pipelines and various pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall connection structure of the utility model;

[0036] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the first fiberglass reinforced plastic pipeline and the replacement pipeline of the utility model;

[0037] Figure 3 This is a schematic diagram of the connection structure between the first lining member and the first fluororubber sealing ring of the utility model;

[0038] Figure 4 This is a schematic diagram of the connection structure between the second lining member and the second fluororubber sealing ring of the utility model;

[0039] Figure 5 This is a schematic diagram of the connection structure between the first locking member and the second locking member of the utility model.

[0040] In the figure: 1. First FRP pipeline; 2. Second FRP pipeline; 3. Replacement pipeline; 4. First lining member; 41. First adapter pipe; 42. First connecting ring; 43. Second connecting ring; 5. Second lining member; 51. Second adapter pipe; 52. Third connecting ring; 6. Fastening connector; 61. First locking member; 62. Second locking member; 7. First fluororubber sealing ring; 8. Second fluororubber sealing ring; 9. Rear fluororubber sealing ring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1:

[0043] See also Figures 1 to 5 The utility model provides a glass fiber reinforced plastic pipeline rapid repair and replacement device, including a replacement pipe 3 and a connecting assembly, the connecting assembly including a first lining member 4, a second lining member 5, and a fastening connector 6; the first lining member 4 includes a first adapter pipe 41, a first connecting ring 42, and a second connecting ring 43 coaxially connected in sequence, the first connecting ring 42 is a disc ring, and the second connecting ring 43 is a tubular ring; the second lining member 5 includes a second adapter pipe 51, a third connecting ring 52 is provided on the outer wall of the second adapter pipe 51, and the second adapter pipe 51 is inserted into the replacement pipe 3 and sealed; the second adapter pipe 51 and the first adapter pipe 41 have the same tube shape, and the second connecting ring 43 can be sleeved on the outer wall of the second adapter pipe 51 and sealed; the fastening connector 6 fastens the first connecting ring 42 and the third connecting ring 52.

[0044] Specifically, the first adapter tube 41, the first connecting ring 42 and the second connecting ring 43 are integrally formed, and the second adapter tube 51 and the third connecting ring 52 are integrally formed. The integrally formed configuration not only improves the stability and strength of the structure, but also helps to simplify the installation and maintenance process.

[0045] Specifically, the outer diameter of the first connecting ring 42 is larger than the outer diameter of the fiberglass reinforced plastic pipeline, and the outer diameter of the third connecting ring 52 is larger than the outer diameter of the fiberglass reinforced plastic pipeline.

[0046] Furthermore, a first fluororubber sealing ring 7 is provided on the outer wall of the first adapter tube 41 , a front fluororubber sealing ring 8 is provided on the outer wall of the second adapter tube 51 in front of the third connecting ring 52 , and a rear fluororubber sealing ring 9 is provided on the outer wall of the second adapter tube 51 behind the third connecting ring 52 .

[0047] Specifically, two first fluororubber sealing rings 7 are provided, two front fluororubber sealing rings 8 are provided, and two rear fluororubber sealing rings 9 are provided.

[0048] Among them, fluororubber sealing ring, as a high-performance sealing material, is designed to provide a reliable sealing effect to prevent fluid leakage.

[0049] Among them, the first fluororubber sealing ring 7 is used for sealing cooperation between the first adapter tube 41 and the FRP pipeline. When the first adapter tube 41 is inserted into the FRP pipeline, the first fluororubber sealing ring 7 will be compressed, thereby ensuring a tight seal with the inner wall of the pipeline; the front fluororubber sealing ring 8 is used for sealing cooperation between the third connecting ring 52 and the second connecting ring 43, and the rear fluororubber sealing ring 9 is used for sealing cooperation between the second adapter tube 51 and the second FRP pipeline 2.

[0050] Furthermore, the fastening connection member 6 includes a first locking member 61 and a second locking member 62; the first locking member 61 is annular, an external thread is provided on the outer wall of the first locking member 61, and a first limiting ring is provided on the inner wall of the first locking member 61; the second locking member 62 is annular, an internal thread is provided on the inner wall of the second locking member 62, and a second limiting ring is provided on the inner wall of the second locking member 62.

[0051] Among them, the second locking part 62 is sleeved on the outer wall of the replacement pipe 3, the first locking part 61 is sleeved on the outer wall of the fiberglass pipeline, the first limiting ring is used to contact the end face of the first connecting ring 42, and the second limiting ring is used to contact the end face of the third connecting ring 52. By screwing the external thread of the first locking part 61 and the internal thread of the second locking part 62 together, the first lining part 4 and the second lining part 5 are tightened.

[0052] Example 2:

[0053] Based on Example 1, this example provides a more specific size structure.

[0054] The first connecting ring 42 , the second connecting ring 43 , and the third connecting ring 52 have the same outer diameter.

[0055] The inner diameter of the first locking member 61 is equal to the outer diameter of the first connecting ring 42, so that it can be in close contact with the outer walls of the first connecting ring 42 and the second connecting ring 43. This design ensures that when the first locking member 61 is sleeved on the outside of the first fiberglass reinforced plastic pipeline 1 and the second fiberglass reinforced plastic pipeline 2, it can simultaneously form a stable contact surface with the outside of the first connecting ring 42 and the second connecting ring 43, thereby increasing the stability of the connection.

[0056] The length of the replacement pipe 3 = the length of the glass fiber reinforced plastic pipeline gap - the assembly width × 2.

[0057] The assembly width is greater than the width of the first connecting ring 42 + the width of the second connecting ring 43 + the width of the matching section between the second adapter tube 51 and the second connecting ring 43 + the width of the third connecting ring 52 .

[0058] The maximum movement distance of the second adapter tube 51 cannot release the seal between the second adapter tube 51 and the replacement pipe 3. The maximum movement of the front end second adapter tube 51 is: the front end first connecting ring 42 contacts the end face of the first fiberglass reinforced plastic pipeline 1, the rear end first connecting ring 42 contacts the end face of the second fiberglass reinforced plastic pipeline 2, and the rear end third connecting ring 52 contacts the end face of the replacement pipe 3.

[0059] The maximum movement distance of the first adapter tube 41 cannot release the seal between the first adapter tube 41 and the fiberglass reinforced plastic pipeline. The maximum movement of the front end first adapter tube 41 is: the front end third connecting ring 52 contacts the end face of the replacement pipeline 3, the rear end third connecting ring 52 contacts the end face of the replacement pipeline 3, and the rear end first connecting ring 42 contacts the end face of the second fiberglass reinforced plastic pipeline 2.

[0060] Example 3:

[0061] Based on Example 2, the specific working principle of the glass fiber reinforced plastic pipeline rapid repair and replacement device of the present invention is as follows:

[0062] S1. In the FRP pipeline rapid repair and replacement device, when a portion of the first FRP pipeline 1 and the second FRP pipeline 2 is damaged and needs to be repaired or replaced, the damaged portion will first be cut off and then quickly repaired using this device.

[0063] S2. Installation of replacement pipe 3: Place the replacement pipe 3 of appropriate diameter between the first FRP pipeline 1 and the second FRP pipeline 2, ensuring that it is aligned with the FRP pipelines at both ends.

[0064] S2. Installation of the first lining member 4: Install the two first lining members 4 on the inner walls of the first FRP pipeline 1 and the second FRP pipeline 2 respectively. Each first lining member 4 is composed of a first adapter tube 41, a first connecting ring 42 and a second connecting ring 43, which are integrally formed. The outer wall of the first adapter tube 41 is provided with a first fluororubber sealing ring 7, which is used to fit tightly with the inner wall of the FRP pipeline to achieve sliding sealing.

[0065] S3. Installation of the second lining member 5: Two second lining members 5 are installed on the inner walls at both ends of the replacement pipe 3 respectively. Each second lining member 5 consists of a second adapter tube 51 and a third connecting ring 52, which are also integrally formed. The outer wall of the second adapter tube 51 is provided with a front fluororubber sealing ring 8 and a rear fluororubber sealing ring 9. The rear fluororubber sealing ring 9 contacts the inner wall of the replacement pipe 3 to form a sliding seal. One end face of the third connecting ring 52 contacts the end of the replacement pipe 3.

[0066] S4. Installation of the fastening connector 6: Use the two first locking members 61 to be respectively sleeved on the outer walls of the first FRP pipeline 1 and the second FRP pipeline 2 in advance, and sleeve the two second locking members 62 on the two ends of the replacement pipe 3 respectively; the inner wall of the first locking member 61 contacts the outer walls of the first connecting ring 42 and the second connecting ring 43, and the first limiting ring contacts the end face of the first connecting ring 42. Since the shape of the first connecting ring 42 and the second connecting ring 43 combined together is adapted to the inner wall shape of the first locking member 61, they can fit tightly. Then, the first locking member 61 and the second locking member 62 are threadedly connected, and the second limiting member in the two locking members 62 contacts the outer wall of the third connecting ring 52. Push the third connecting ring 52 to insert the second adapter tube 51 into the second connecting ring 43. The front fluororubber sealing ring 8 contacts the inner wall of the third connecting ring 52 to achieve a sealed connection. The other end face of the third connecting ring 52 contacts the second connecting ring 43.

[0067] S5. Repair completed: By rotating the second locking piece 62, it is tightly threaded with the first locking piece 61, thereby firmly connecting the replacement pipe 3 with the first FRP pipeline 1 and the second FRP pipeline 2. During the whole process, the presence of the fluororubber sealing ring ensures the sealing of the connection, effectively preventing oil and gas leakage.

[0068] Through the above steps, the repair or replacement of FRP pipelines can be completed quickly and effectively, improving work efficiency and safety.

[0069] All components not discussed in detail in this application and the connection methods of the components in this application are well-known technologies in the technical field and can be directly applied without further explanation.

[0070] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0071] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0072] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A rapid repair and replacement device for glass fiber reinforced plastic pipelines, including a replacement pipeline and a connection assembly, characterized in that: The connecting assembly includes a first lining member, a second lining member, and a fastening connecting member; The first lining member includes a first adapter tube, a first connecting ring, and a second connecting ring coaxially connected in sequence; the second lining member includes a second adapter tube, a third connecting ring is provided on the outer wall of the second adapter tube, and the second adapter tube is inserted into the replacement pipe and sealed; The second connecting ring can be sleeved on the outer wall of the second adapter tube and sealed; the fastening connector can fasten the first connecting ring and the third connecting ring.

2. A glass fiber reinforced plastic pipeline rapid repair and replacement device according to claim 1, characterized in that: The outer diameter of the first connecting ring is larger than the outer diameter of the glass fiber reinforced plastic pipeline, and the outer diameter of the third connecting ring is larger than the outer diameter of the glass fiber reinforced plastic pipeline.

3. A glass fiber reinforced plastic pipeline rapid repair and replacement device according to claim 2, characterized in that: The fastening connection member includes a first locking member and a second locking member; The first locking member is annular, an outer wall of the first locking member is provided with an external thread, and an inner wall of the first locking member is provided with a first limiting ring; The second locking member is annular, an inner wall of the second locking member is provided with an internal thread, and an inner wall of the second locking member is provided with a second limiting ring; The second locking piece is sleeved on the outer wall of the replacement pipe, the first locking piece is sleeved on the outer wall of the fiberglass reinforced plastic pipeline, the first limiting ring is used to contact the end face of the first connecting ring, and the second limiting ring is used to contact the end face of the third connecting ring. By screwing the first locking piece and the second locking piece together, the first lining piece and the second lining piece are tightened.

4. A glass fiber reinforced plastic pipeline rapid repair and replacement device according to claim 3, characterized in that: The outer wall of the first adapter pipe is provided with a first fluororubber sealing ring, which is used for sealing the first adapter pipe and the glass fiber reinforced plastic pipeline; A front fluororubber sealing ring is provided on the outer wall of the second adapter tube in front of the third connecting ring, and the front fluororubber sealing ring is used for sealing cooperation between the third connecting ring and the second connecting ring; A rear fluororubber sealing ring is provided on the outer wall of the second adapter pipe behind the third connecting ring, and the rear fluororubber sealing ring is used for sealing the second adapter pipe and the second fiberglass reinforced plastic pipeline.

5. The FRP pipeline rapid repair and replacement device according to claim 4 is characterized in that: The first connecting ring is a disc-shaped ring, and the second connecting ring is a tubular ring; the second adapter tube and the first adapter tube have the same tube shape.

6. A glass fiber reinforced plastic pipeline rapid repair and replacement device according to claim 4, characterized in that: The first adapter tube, the first connecting ring and the second connecting ring are integrally formed, and the second adapter tube and the third connecting ring are integrally formed.

7. The FRP pipeline rapid repair and replacement device according to claim 4 is characterized in that: Two first fluororubber sealing rings are provided, two front fluororubber sealing rings are provided, and two rear fluororubber sealing rings are provided.

8. The FRP pipeline rapid repair and replacement device according to claim 4 is characterized in that: The outer diameters of the first connecting ring, the second connecting ring and the third connecting ring are equal; the inner diameter of the first locking piece is equal to the outer diameter of the first connecting ring.

9. The FRP pipeline rapid repair and replacement device according to claim 4, characterized in that: The replacement pipe length = FRP pipe notch length - assembly width × 2; The assembly width is greater than the width of the first connecting ring + the width of the second connecting ring + the width of the matching section between the second adapter tube and the second connecting ring + the width of the third connecting ring.

10. The FRP pipeline rapid repair and replacement device according to claim 4, characterized in that: After the first lining member and the second lining member are locked by the fastening connector, movement of the connecting assembly cannot release the seal between the first adapter pipe and the fiberglass pipeline, and movement of the connecting assembly cannot release the seal between the second adapter pipe and the replacement pipe.

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