Basalt fiber composite pipe

Abstract

The utility model relates to the technical field of composite pipes, and discloses a basalt fiber composite pipe which comprises a right composite pipe, a main connecting pipe is fixedly connected outside the right composite pipe in a sleeved mode, a connecting groove is formed in one end of the main connecting pipe, and a secondary connecting pipe is movably connected to the inner circle wall face of the connecting groove in a sleeved mode. Through mutual cooperative use of a right composite pipe, a main connecting pipe, a secondary connecting pipe, a left composite pipe, a connecting groove and a capsule bin, the effect of sealing the connecting pipe and the secondary connecting pipe is achieved, through an automatic alignment mechanism of a spiral guide groove and a stainless steel elastic piece, the positioning operation of a threaded hole and a first threaded groove is simplified, and the production efficiency is improved. The distributed repairing function of the microcapsules and the high-temperature tolerance characteristic of the flexible graphite gasket are synergistic, the reliability of a sealing system under dynamic loads is remarkably improved, medium leakage caused by mechanical stress or thermal deformation is effectively avoided, meanwhile, the service life is prolonged through self-repairing, the replacement frequency is reduced, the maintenance cost is further reduced, and practicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite pipe technical field especially relates to a basalt fiber composite pipe. BACKGROUND

[0002] The composite pipe mainly has metal composite pipe, carbon fiber composite pipe and glass fiber composite pipe, wherein the basalt fiber composite pipe is a pipeline made of basalt fiber, can be made into elbow and straight pipe, and is connected through thread mode, and the basalt fiber composite pipe has light specific gravity, long service life, is made of basalt fiber as reinforcing body, resin as matrix, and is made of composite material pipeline through winding or pultrusion process.

[0003] The existing basalt fiber composite pipe (publication number: CN221880526U) has at least the following disadvantages:

[0004] In the above patent, fluid leakage is effectively prevented through the double-seal ring design (inner and outer peripheral side seal ring grooves), the screw connection + locking bolt double fixation reduces the risk of loosening caused by vibration or pressure fluctuation of the pipeline, and the standardization design of the annular groove and the locking bolt facilitates quick installation and disassembly, and is suitable for complex pipe network system maintenance, but the alignment accuracy of the locking bolt and the threaded hole is high, and it is inconvenient to observe whether the thread groove / hole is aligned during connection, so that connection is inconvenient, and at the same time, the sealing ring is exposed to high temperature and chemical medium for a long time, which can cause the elastic decline of the sealing ring, and the sealing ring needs to be replaced regularly, so that the maintenance cost is increased, and it is necessary to propose a basalt fiber composite pipe to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a basalt fiber composite pipe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A basalt fiber composite pipe, including right composite pipe, the outer fixed sleeve of right composite pipe is connected with main connecting pipe, one end of main connecting pipe is provided with connecting groove, the inner circular wall surface of connecting groove is movably connected with secondary connecting pipe, the inner fixed sleeve of secondary connecting pipe is connected with left composite pipe, it also includes: sealing assembly, sealing assembly is arranged in the inner circular wall surface of connecting groove, be used for sealing between main connecting pipe and secondary connecting pipe, sealing assembly includes: secondary sealing groove, secondary sealing groove is arranged in the inner circular wall surface of connecting groove, the inner fixed sleeve of secondary sealing groove is connected with silicone rubber seal ring, the inside of silicone rubber seal ring is provided with a plurality of capsule warehouses, the inside of capsule warehouse is embedded with microcapsule, the inside of microcapsule is filled with polydimethylsiloxane repair agent, the inner fixed sleeve of secondary sealing groove is connected with two flexible graphite gaskets, positioning assembly, positioning assembly is arranged in the inner wall of connecting groove, for the positioning connection of secondary connecting pipe.

[0008] As a further scheme of the utility model, the positioning assembly includes: a plurality of stainless steel elastic sheets, the stainless steel elastic sheets are fixedly installed on the inner wall of the connecting groove, the outer circular wall surface of the secondary connecting pipe is provided with a plurality of spiral guide grooves, and the spiral guide grooves are movably connected with the stainless steel elastic sheets.

[0009] As a further scheme of the utility model, the outer circular wall surface of the secondary connecting pipe is provided with a plurality of first threaded grooves, the outer circular wall surface of the main connecting pipe is provided with a plurality of threaded holes, the inner circular wall surface of the threaded holes is screw-connected with bolts, and the bolts are screw-connected with the first threaded grooves.

[0010] As a further scheme of the utility model, the outer circular wall surface of the secondary connecting pipe is provided with threads, the inner wall of the connecting groove is provided with a plurality of second threaded grooves, and the secondary connecting pipe is screw-connected with the second threaded grooves.

[0011] As a further scheme of the utility model, the inner circular wall surface of the connecting groove is provided with a fixing groove, one end of the secondary connecting pipe is provided with a primary sealing groove, the inner fixed sleeve of the fixing groove is connected with a second sealing ring, and the inner fixed sleeve of the primary sealing groove is connected with a third sealing ring.

[0012] As a further scheme of the utility model, when the free end of the stainless steel elastic sheet is not connected, the stainless steel elastic sheet is inclined to the center of the pipeline by 15 degrees.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] Through mutual cooperation of the right composite pipe, the main connecting pipe, the secondary connecting pipe, the left composite pipe, the connecting groove, the silicone rubber sealing ring and the capsule bin, the effect of sealing between the connecting pipe and the secondary connecting pipe is achieved, through the automatic alignment mechanism of the spiral guide groove and the stainless steel spring sheet, the positioning operation of the threaded hole and the first threaded groove is simplified, the distributed repair function of the microcapsule and the high temperature resistance characteristic of the flexible graphite gasket are synergistically acted, the reliability of the sealing system under dynamic load is significantly improved, medium leakage caused by mechanical stress or thermal deformation is effectively avoided, meanwhile, the self-repairing prolongs the service life and reduces the replacement frequency, thereby reducing the maintenance cost, and the sealing system is practical. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the basalt fiber composite pipe;

[0016] Figure 2 It is a right composite pipe structure schematic view of the basalt fiber composite pipe;

[0017] Figure 3 It is a main connecting pipe structure schematic view of the basalt fiber composite pipe; Figure 2 It is a partial structure schematic view of the middle A;

[0018] Figure 4 It is a main connecting pipe structure schematic view of the basalt fiber composite pipe;

[0019] Figure 5 It is a partial structure schematic view of the middle B; Figure 4

[0020] It is a spiral guide groove structure schematic view of the basalt fiber composite pipe. Figure 6 In the figure: 1, right composite pipe; 2, main connecting pipe; 3, secondary connecting pipe; 4, left composite pipe; 5, connecting groove; 6, rubber sealing ring; 7, capsule bin; 8, microcapsule; 9, flexible graphite gasket; 10, second sealing ring; 11, fixed groove; 12, secondary sealing groove; 13, stainless steel spring sheet; 14, spiral guide groove; 15, first threaded groove; 16, threaded hole; 17, bolt; 18, thread; 19, second threaded groove; 20, primary sealing groove; 21, third sealing ring.

[0021] DETAILED DESCRIPTION In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0022] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0023] In the description of the utility model, it is necessary to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it is necessary to explain, unless otherwise specified and limited, the terms "installation", "provided with", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0025] Refer to Figures 1-6 A basalt fiber composite pipe, including right composite pipe 1, the outer fixed sleeve of right composite pipe 1 is connected with main connecting pipe 2, the one end of main connecting pipe 2 is provided with connecting groove 5, the inner circular wall surface of connecting groove 5 is movably connected with secondary connecting pipe 3, the inside of secondary connecting pipe 3 is fixedly connected with left composite pipe 4, further including: sealing assembly, sealing assembly is arranged on the inner circular wall surface of connecting groove 5, for sealing between main connecting pipe 2 and secondary connecting pipe 3, sealing assembly includes: secondary sealing groove 12, secondary sealing groove 12 is provided on the inner circular wall surface of connecting groove 5, the inside of secondary sealing groove 12 is fixedly connected with silicone rubber sealing ring 6, the inside of silicone rubber sealing ring 6 is provided with a plurality of capsule warehouses 7, the inside of capsule warehouse 7 is embedded with microcapsule 8, the inside of microcapsule 8 is filled with polydimethylsiloxane repair agent, the inside of secondary sealing groove 12 is fixedly connected with two flexible graphite gaskets 9, positioning assembly, positioning assembly is arranged on the inner wall of connecting groove 5, for the positioning connection of secondary connecting pipe 3.

[0026] In use, the silicone rubber sealing ring 6 is embedded in the secondary sealing groove 12, and the microcapsules 8 (containing polydimethylsiloxane repair agent) are uniformly distributed inside. When the pipeline is deformed under pressure, causing microcracks in the silicone rubber sealing ring 6, the microcapsules 8 rupture and release the repair agent, filling the cracks and solidifying, achieving self-repair of cracks with a width of ≤0.5mm, extending the service life of the sealing ring by 3-5 times. The flexible graphite gaskets 9 (resistant to high temperatures of 500℃) on both sides serve as an emergency sealing layer, providing a second layer of protection under pressure >10MPa or high-temperature working conditions. The third sealing ring 21 and the second sealing ring 10 form the third and fourth sealing barriers in the primary sealing groove 20 and the fixed groove 11, respectively.

[0027] In this embodiment, the positioning assembly includes a plurality of stainless steel springs 13, each fixedly installed on the inner wall of the connecting groove 5. The outer circular wall surface of the secondary connecting pipe 3 is provided with a plurality of spiral guide grooves 14, which are movably sleeved with the stainless steel springs 13. The outer circular wall surface of the secondary connecting pipe 3 is provided with a plurality of first threaded grooves 15, and the outer circular wall surface of the main connecting pipe 2 is provided with a plurality of threaded holes 16. The inner circular wall surface of the threaded hole 16 is threadedly connected with a bolt 17, which is threadedly connected with the first threaded groove 15. The outer circular wall surface of the secondary connecting pipe 3 is provided with a thread 18, and the inner wall of the connecting groove 5 is provided with a plurality of second threaded grooves 19. The secondary connecting pipe 3 is threadedly connected with the second threaded grooves 19. The inner circular wall surface of the connecting groove 5 is provided with a fixed groove 11, and one end of the secondary connecting pipe 3 is provided with a primary sealing groove 20. The inside of the fixed groove 11 is fixedly sleeved with a second sealing ring 10, and the inside of the primary sealing groove 20 is fixedly sleeved with a third sealing ring 21. When the free end of the stainless steel spring 13 is not connected, it is inclined by 15 degrees towards the center of the pipeline.

[0028] In use, when the user needs to connect the pipeline, one end of the secondary connecting pipe 3 is inserted into the inside of the connecting groove 5, so that the end of the secondary connecting pipe 3 presses against the stainless steel spring 13. Rotating the secondary connecting pipe 3 drives the spiral guide groove 14 to rotate and apply an axial pushing force. When the inlet of the spiral guide groove 14 is aligned with the stainless steel spring 13, the spring is embedded in the guide groove. Continuing to rotate the secondary connecting pipe 3 makes the stainless steel spring 13 slide along the spiral guide groove 14 to the locked position, completing the preliminary positioning of the main connecting pipe 2 and the secondary connecting pipe 3. At this time, the threaded hole 16 of the main connecting pipe 2 and the first threaded groove 15 of the secondary connecting pipe 3 are in the same circumferential position. At the same time, when the secondary connecting pipe 3 is rotated, the thread 18 is connected with the second threaded groove 19. The threaded connection enhances the structural stability of the secondary connecting pipe 3 and the main connecting pipe 2. Finally, the bolt 17 is screwed into the threaded hole 16 and the first threaded groove 15, realizing double mechanical locking.

[0029] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: through the setting of the right composite pipe 1, when the user needs to connect the pipeline, one end of the secondary connecting pipe 3 is inserted into the connecting groove 5, the end of the secondary connecting pipe 3 is pressed against the stainless steel spring piece 13, the secondary connecting pipe 3 drives the spiral guide groove 14 to rotate and applies axial thrust, when the inlet of the spiral guide groove 14 is aligned with the stainless steel spring piece 13, the spring piece is embedded in the guide groove, the secondary connecting pipe 3 is continuously rotated to make the stainless steel spring piece 13 slide into the locking position along the spiral guide groove 14, the primary connecting pipe 2 and the secondary connecting pipe 3 are preliminarily positioned, at this time, the threaded hole 16 of the primary connecting pipe 2 and the first threaded groove 15 of the secondary connecting pipe 3 are in the same circumferential position, at the same time, when the secondary connecting pipe 3 is rotated, the thread 18 is connected with the second threaded groove 19, the threaded connection enhances the structural stability of the secondary connecting pipe 3 and the primary connecting pipe 2, finally, the bolt 17 is screwed into the threaded hole 16 and the first threaded groove 15, realizing double mechanical locking, at the same time, after the connection is completed, the silicone rubber sealing ring 6 is embedded in the secondary sealing groove 12, the inside of which is uniformly distributed with microcapsules 8 (containing polydimethylsiloxane repair agent), when the pipeline is deformed under pressure, causing the silicone rubber sealing ring 6 to produce microcracks, the microcapsules 8 are broken to release the repair agent, filling the cracks and solidifying, realizing self-repair of cracks with a width of ≤0.5mm, extending the service life of the sealing ring by 3-5 times, the flexible graphite gasket 9 (resistant to high temperature 500 DEG C) on both sides as an emergency sealing layer provides a second protection under pressure >10MPa or high temperature working conditions, the third sealing ring 21 and the second sealing ring 10 form the third and fourth sealing barriers in the primary sealing groove 20 and the fixing groove 11 respectively (when necessary, the first, second, third and fourth refer to the number of sealing, not the front and rear order of sealing, which needs to be understood in combination with the drawings), realizing multi-level leakage prevention, and thus comprehensively achieving the effect of sealing between the primary connecting pipe 2 and the secondary connecting pipe 3, through the automatic alignment mechanism of the spiral guide groove 14 and the stainless steel spring piece 13, the positioning operation of the threaded hole 16 and the first threaded groove 15 is simplified, the distributed repair function of the microcapsules 8 and the high temperature resistance characteristics of the flexible graphite gasket 9 synergistically act, significantly improving the reliability of the sealing system under dynamic load, effectively avoiding medium leakage caused by mechanical stress or thermal deformation, prolonging the service life through self-repair, reducing the replacement frequency, and thus reducing the maintenance cost, and being more practical.

[0030] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A basalt fiber composite pipe comprising: The utility model provides a right composite pipe (1), the outer fixed sleeve of right composite pipe (1) has main connecting pipe (2), the one end of main connecting pipe (2) is provided with connecting groove (5), the inner circular wall surface movable sleeve of connecting groove (5) has secondary connecting pipe (3), the inside fixed sleeve of secondary connecting pipe (3) has left composite pipe (4), its characterized in that still includes: Sealing assembly, sealing assembly be provided in the inner circular wall surface of connecting groove (5), for between main connecting pipe (2) and secondary connecting pipe (3) are sealed, sealing assembly includes: secondary sealing groove (12), secondary sealing groove (12) is provided in the inner circular wall surface of connecting groove (5), the inside fixed sleeve of secondary sealing groove (12) has silica rubber seal ring (6), the inside of silica rubber seal ring (6) is provided with a plurality of capsule storehouse (7), the inside embedding of capsule storehouse (7) has microcapsule (8), the inside filling of microcapsule (8) has polydimethylsiloxane restorative agent, the inside fixed sleeve of secondary sealing groove (12) has two flexible graphite gasket (9), Positioning assembly, the inner wall of connecting groove (5) is provided with positioning assembly, for the positioning connection of secondary connecting pipe (3).

2. A basalt fiber composite pipe according to claim 1, characterized in that, The positioning assembly includes: a plurality of stainless steel leaf springs (13) are fixedly installed on the inner wall of the connecting groove (5), the outer circular wall surface of the secondary connecting pipe (3) is provided with a plurality of spiral guide grooves (14), and the spiral guide grooves (14) are movably connected with the stainless steel leaf springs (13).

3. A basalt fiber composite pipe according to claim 1, characterized in that, The outer circular wall surface of the secondary connecting pipe (3) is provided with a plurality of first threaded grooves (15), the outer circular wall surface of the main connecting pipe (2) is provided with a plurality of threaded holes (16), the inner circular wall surface of the threaded holes (16) is screwed with a bolt (17), and the bolt (17) is screwed with the first threaded grooves (15).

4. A basalt fiber composite pipe according to claim 1, characterized in that, The outer circular wall surface of the secondary connecting pipe (3) is provided with a threaded hole (18), the inner wall of the connecting groove (5) is provided with a plurality of second threaded grooves (19), and the secondary connecting pipe (3) is screwed with the second threaded grooves (19).

5. A basalt fiber composite pipe according to claim 1, characterized in that, The inner circular wall surface of the connecting groove (5) is provided with a fixing groove (11), one end of the secondary connecting pipe (3) is provided with a primary sealing groove (20), the inside of the fixing groove (11) is fixedly sleeved with a second sealing ring (10), and the inside of the primary sealing groove (20) is fixedly sleeved with a third sealing ring (21).

6. A basalt fiber composite pipe according to claim 2, characterized in that, When the free end of the stainless steel leaf spring (13) is not connected, it is inclined to the center of the pipeline by 15 degrees.

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