Pipeline facility for leakage prevention of ultra-deep buried composite pipeline

Abstract

The invention provides a pipeline facility for leakage prevention of an ultra-deep buried composite pipeline, and belongs to the technical field of pipeline connecting structures, the pipeline facility comprises a composite pipeline main body, a fixing piece, a connecting pipe, a clamping structure, a fixing column and a sealing ring, the outer side wall of the composite pipeline main body is fixedly connected with the fixing piece, and the fixing piece is fixedly connected with the connecting pipe; the sealing gasket is used for sealing the butt joint position of the composite pipeline body, the clamping block further seals the connecting position, water is effectively prevented from leaking from the connecting position, the composite pipeline body is convenient to mount and dismount, the anti-leakage purpose of the ultra-deep buried composite pipeline can be achieved, and the anti-leakage effect and the long-term effective stability are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline connection structures, and relates to a pipeline facility for preventing leakage of ultra-deep buried composite pipelines. Background Art

[0002] For steel-plastic composite pipes, seamless steel pipes or welded steel pipes are used as the base pipes, and high-adhesion, anti-corrosion, and food-grade hygienic polyethylene powder coatings or epoxy resin coatings are applied to the inner walls. The galvanized inner-coated plastic composite steel pipes for water supply, which are made by the processes of pretreatment, preheating, inner coating, leveling, and post-treatment, are upgraded products of traditional galvanized pipes. Steel-plastic composite pipes are generally connected by threads, grooves, or flanges.

[0003] When using composite pipes for water source transportation, a certain degree of sealing is required at the connection of two composite pipes to prevent water leakage from the connection. In addition, when a certain section of the composite pipe is damaged, the composite pipe needs to be replaced, but the disassembly of traditional composite pipes is rather troublesome.

[0004] For traditional pipeline anti-leakage sealing rings, generally, the pipeline connection surfaces are heated and melted by a heating plate first, then the two pipeline connection surfaces are fusion-fixed, and then an electrofusion joint is sleeved at the connection of the two composite pipes. An electrofusion fitting refers to a plastic (polyethylene) pipe fitting that can be melted by the temperature generated by an electric current to achieve connection. However, since there is no connection force between the two pipeline connections, only being connected by electrofusion fittings may result in an unstable connection between the two pipes. During the burying process, pulling on the pipes, etc., can also easily cause loosening at the pipeline connection, reducing the overall firmness of the sealing ring.

[0005] Therefore, in view of the above problems, a pipeline facility for preventing leakage of ultra-deep buried composite pipelines is proposed. Summary of the Invention

[0006] To solve the technical problems existing in the above background art, the present invention provides a pipeline facility for preventing leakage of ultra-deep buried composite pipelines, including: a composite pipeline main body, a fixing member, a connecting pipe, a clamping structure, a fixing column, and a sealing ring. The connecting pipe is installed and fixed by bolts. Annular grooves are formed on the inner side walls at both ends of the inner side of the connecting pipe. A sealing ring is arranged between the composite pipeline main bodies. Annular grooves are formed on the side walls at both ends of the connecting pipe. The composite pipeline main body and the connecting pipe are connected by a clamping structure. A sealing ring is arranged between the connecting pipe and the clamping structure. A fixing column is arranged on the clamping structure. A high-density polyethylene film is wound around the annular grooves arranged in an array on the inner side of the connecting pipe, and the high-density polyethylene film is used to improve the anti-seepage effect at the connection of the annular grooves during the butt joint installation process.

[0007] Furthermore, the composite pipe body is docked with the connecting pipe through the annular protrusion on its outer wall. There are two parallelly distributed clamping rings on the inner side wall of the buckle plate, which can be clamped on the outer wall of the composite pipe body to prevent the composite pipe body from slipping off after connection. Before using the installation structure, the outer wall and the annular protrusion of the composite pipe body are turned to the same diameter value to meet the adaptation requirements of the connecting pipe. After the two composite pipe bodies are aligned, the two buckle plates are buckled on the annular protrusion, and the two buckle plates are connected by bolts. Then, the clamping frame is rotated. When the clamping frame rotates towards the buckle plate, it will squeeze the waterproof ring, and the waterproof ring will play a good sealing role. The fixing member is in an arc-shaped structure, and there are grooves symmetrically arranged on both sides of the fixing member.

[0008] Furthermore, the clamping structure includes two block-shaped buckle plates with installation holes. The two block-shaped buckle plates are respectively arranged on the two docking surfaces of the connecting pipe, and bolts are used to install and fix the two block-shaped buckle plates to enable the docking installation of the connecting pipe. The clamping structure also includes two clamping members, namely the first clamping member and the second clamping member. The first clamping member is arranged on the auxiliary pipe, and the auxiliary pipe has an unlocking section and a locking section that communicate with each other. The connecting pipe is coaxially arranged with the auxiliary pipe. The second clamping member is movably arranged at one end of the composite pipe body. There are an unlocking position and a locking position on the movement path of the second clamping member. When the second clamping member is in the unlocking position, the second clamping member is within the unlocking section. When the second clamping member is in the locking position, the second clamping member is within the locking section.

[0009] Furthermore, scale lines are engraved on the surface of the fixing column. The fixing column is arranged in the hole formed between the two block-shaped buckle plates. The fixing column is used to fix the position of the bolt in the clamping structure to prevent the bolt from slipping. A sealing ring and a nut are installed at one end of the bolt.

[0010] The beneficial effects of the present invention are as follows: The present invention provides a pipeline facility for preventing leakage of ultra-deep buried composite pipes. The sealing ring is placed at the docking seam between the composite pipe body and the connecting pipe. A high-density polyethylene film is wound around the annular grooves arranged in an array on the inner side of the connecting pipe. During the docking installation process, the high-density polyethylene film is used to improve the anti-seepage effect at the connection of the annular grooves. The sealing gasket is clamped into the annular groove. The clamping frame and the clamping block are clamped onto the fixing frame, and the two fixing frames are connected. The docking seam of the composite pipe body tightly abuts against the sealing gasket, and the sealing gasket is used to seal the docking seam of the composite pipe body. The clamping block further seals the connection part, effectively preventing water from leaking from the connection part. The bolt is threadedly connected into the threaded hole on the fixing block, and the nut is threadedly connected to the bolt. The two clamping frames are locked by the bolt and the nut, enabling the clamping frame to tightly clamp the composite pipe body, facilitating the installation and disassembly of the composite pipe body, and being able to achieve the purpose of preventing leakage of ultra-deep buried composite pipes, improving the anti-seepage effect and the long-term effective stability.

[0011] Advantages of additional aspects of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0013] Figure 1 It is a structural diagram of a pipeline facility for preventing leakage of a super-deep buried composite pipeline according to the present invention; Wherein: 1, main body of the composite pipeline; 2, bolt; 3, connecting pipe; 4, clamping structure; 5, fixed column; 6, sealing ring; 7, nut; 8, annular groove; 9, plug ring; 10, first clamping member; 11, auxiliary pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this embodiment have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0016] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only relational terms determined for the convenience of describing the structural relationship of each component or element of the present invention, and do not specifically refer to any component or element in the present invention, and should not be construed as a limitation to the present invention.

[0018] In the present invention, terms such as "fixed connection", "connected", "connected" should be understood in a broad sense, indicating that it can be a fixed connection, an integral connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium. For those related scientific research or technical personnel in the field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and should not be construed as a limitation to the present invention.

[0019] Example 1, as Figure 1 shown, this embodiment provides a pipeline facility for preventing leakage of ultra-deep buried composite pipelines, including: a composite pipeline main body 1, a fixing member 2, a connecting pipe 3, a clamping structure 4, a fixing column 5 and a sealing ring 6. Annular grooves arranged in an array are provided inside the connecting pipe 3, and the composite pipeline main body 1 and the auxiliary pipeline 11 are butt-jointed and installed by means of groove connection. The connecting pipe is installed and fixed by bolts 2. Annular grooves 8 in the shape of a circular ring are opened on the inner side walls at both ends inside the connecting pipe 3. A sealing ring 6 is arranged between the composite pipeline main bodies 1. Annular grooves 8 in the shape of a circular ring are opened on the side walls at both ends of the connecting pipe 3. The composite pipeline main body 1 and the connecting pipe 3 are connected by a clamping structure 4. A sealing ring 6 is arranged between the connecting pipe 3 and the clamping structure 4. A fixing column 5 is arranged on the clamping structure 4. A high-density polyethylene film is wound on the annular grooves arranged in an array inside the connecting pipe 3, and the high-density polyethylene film is used to improve the anti-seepage effect at the connection of the annular grooves during the butt-joint installation process.

[0020] The preparation process of the high-density polyethylene film adopts: weighing high-density polyethylene resin, a composite modifier (vinyl cobalt nitride nanoparticles), an antioxidant (4,4'-dioctyldiphenylamine) and a pore-forming agent (dibutyl phthalate) according to the weight ratio, and drying them respectively for later use; adding the high-density polyethylene resin, the composite modifier, the antioxidant and the pore-forming agent into a twin-screw extruder in sequence, and after mixing, melting and extruding, the temperature in the extrusion section of the screw machine is 250 °C, the screw speed is 45 r / min, and a film blank is obtained; preheating the obtained film blank at 130 °C, performing biaxial stretching, the transverse stretching multiple is 5 times, the longitudinal stretching multiple is 5 times, the traction speed is 10 m / min, and then performing shaping treatment at 100 °C to obtain the high-density polyethylene film.

[0021] The composite pipeline main body 1 is connected to the connecting pipe through the annular protrusion on its outer wall. Two parallel first clamping members 10 are provided on the composite pipeline main body 1, and the first clamping members 10 can be clamped on the outer wall of the composite pipeline main body 1 to prevent the composite pipeline main body 1 from slipping off after connection; before using the installation structure, the outer wall and the annular protrusion of the composite pipeline main body 1 are turned to the same diameter value to meet the matching requirements of the connecting pipe. After the composite pipeline main bodies 1 are aligned, then two buckle plates are buckled on the annular protrusion, and the two buckle plates are connected by bolts. Then, the clamping frame is screwed, and when the clamping frame rotates towards the buckle plate, it will squeeze the waterproof ring, and the waterproof ring will play a good sealing role. The fixing member 2, the fixing member 2 has an arc-shaped structure, and grooves are symmetrically arranged on both sides of the fixing member 2.

[0022] The clamping structure 4 includes two block-shaped fasteners with mounting holes. The two block-shaped fasteners are respectively arranged on the two butting surfaces of the connecting pipe. Bolts are used to install and fix the two block-shaped fasteners, so that the connecting pipe is butted and installed. The clamping structure 4 also includes a first clamping member and a second clamping member. The first clamping member 10 is arranged on the auxiliary pipe 11, and the second clamping member is arranged on the composite pipe main body 1. The auxiliary pipe 11 has an unlocking section and a locking section that communicate with each other. The connecting pipe is coaxially arranged with the auxiliary pipe. A second clamping member is movably arranged at one end of the composite pipe main body 1 opposite to the first clamping member 10. The movement path of the second clamping member has an unlocking position and a locking position. When the second clamping member is in the unlocking position, the second clamping member is within the unlocking section. When the second clamping member is in the locking position, the second clamping member is within the locking section.

[0023] Scale lines are engraved on the surface of the fixing post 5. The fixing post is arranged in the hole formed between the two block-shaped fasteners. The fixing post is used to fix the position of the bolt 2 in the clamping structure 4 to prevent the bolt from slipping. A sealing ring 6 and a nut 7 are installed at one end of the bolt 2.

[0024] The sealing ring 6 includes a sealing sleeve. A plug ring 9 is integrally formed on the inner ring surface of the composite pipe main body 1. A sealing sleeve is sleeved on one end of the plug ring 9 away from the composite pipe main body 1. A traction sleeve is integrally formed on the inner ring surface of the sealing sleeve. A first sealing pad is integrally formed at one end of the traction sleeve away from the sealing sleeve. The first sealing pad is fixed on the surface of the composite pipe main body 1. Multiple through holes are provided in the first sealing pad. A bolt fastening sleeve is integrally formed inside the through holes. The bolt fastening sleeve is inserted into the bolt hole.

[0025] During operation, the connecting pipe 3 and the auxiliary pipe 11 are placed on the same axis by using a deep-buried clamp. The composite pipe main body is expanded by a certain dimension along the butting seam by the deep-buried clamp and sleeved on both ends of the connecting pipe 3 and the auxiliary pipe 11. The sealing ring is placed at the butting seam of the composite pipe main body. The sealing pad is clamped into the annular groove. The clamping frame and the clamping block are clamped onto the fixing frame. The two fixing frames are connected. The butting seam of the composite pipe main body tightly abuts against the sealing pad. The sealing pad is used to seal the connection of the composite pipe main body. The clamping block further seals the connection, effectively preventing water from leaking from the connection. By rotating the pipe main body by a certain angle with the deep-buried clamp, the fixing block of the clamping structure is arranged laterally, and the threaded hole of the clamping mechanism is arranged upward. A deep-buried screwdriver is used to thread the bolt into the threaded hole on the fixing block, and the nut is threaded onto the bolt. The two clamping frames are locked by the bolt and the nut, so that the clamping frames tightly clamp the composite pipe main body, facilitating the installation and disassembly of the composite pipe main body.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pipeline facility for preventing leakage of ultra-deeply buried composite pipelines, characterized in that, Including: A composite pipe body (1), bolts (2), a connecting pipe (3), a clamping structure (4), fixing columns (5) and sealing rings (6). The connecting pipe is installed and fixed by bolts (2). Annular grooves (8) in the shape of a ring are formed on the inner side walls at both ends of the inner side of the connecting pipe (3). A sealing ring (6) is arranged between the composite pipe bodies (1). Annular grooves (8) arranged in an array are provided on the inner side of the connecting pipe (3). The composite pipe body (1) and the auxiliary pipe (11) are butt - joint installed by means of groove connection. A high - density polyethylene film is wound on the annular grooves (8) arranged in an array on the inner side of the connecting pipe (3). The high - density polyethylene film is used to improve the anti - seepage effect at the connection of the annular grooves during the butt - joint installation process.

2. The pipeline facility for preventing leakage of a super-deeply buried composite pipeline according to claim 1, characterized in that, The composite pipe body (1) and the connecting pipe (3) are connected by a clamping structure (4), and the connecting pipe (3) is butt - jointed by the clamping structure (4).

3. The pipeline facility for preventing leakage of a super-deeply buried composite pipeline according to claim 2, characterized in that, The composite pipe body (1) is connected to the connecting pipe through a ring - shaped protrusion on its outer wall. Two parallel - distributed clamping parts are provided on the composite pipe body (1) and the auxiliary pipe (11). The second clamping part is clamped on the outer wall of the composite pipe body (1) to prevent the composite pipe body (1) from slipping off after connection. Before using the installation structure, the outer wall and the ring - shaped protrusion of the composite pipe body (1) are turned to the same diameter value. After the composite pipe body (1) is aligned, two buckle plates are buckled on the ring - shaped protrusion, and the two buckle plates are connected by bolts. Then, the clamping frame is rotated. When the clamping frame rotates towards the buckle plate, it will squeeze the waterproof ring, and the waterproof ring is used for sealing. The bolt (2) is in an arc - shaped structure, and grooves are symmetrically arranged on both sides of the bolt (2).

4. The pipeline facility for preventing leakage of a super-deep buried composite pipeline according to claim 3, characterized in that, The clamping structure (4) includes two block - shaped buckle plates with mounting holes. The two block - shaped buckle plates are respectively arranged on the two butting surfaces of the connecting pipe. The two block - shaped buckle plates are installed and fixed by bolts, so that the connecting pipe is butt - joint installed. The clamping structure (4) also includes two clamping parts, namely a first clamping part (10) and a second clamping part. The first clamping part (10) is arranged on the auxiliary pipe (11). The auxiliary pipe (11) has an unlocking section and a locking section that communicate with each other. The auxiliary pipe (11) is coaxially arranged with the connecting pipe (3). A second clamping part is movably arranged at one end of the composite pipe body (1). There are an unlocking position and a locking position on the movement path of the second clamping part. When the second clamping part is in the unlocking position, the second clamping part is in the unlocking section. When the second clamping part is in the locking position, the second clamping part is in the locking section.

5. The pipeline facility for preventing leakage of ultra-deeply buried composite pipelines according to claim 4, characterized in that, Scale lines are engraved on the surface of the fixing column (5). The fixing column is arranged in the hole formed between the two block - shaped buckle plates. The fixing column is used to fix the position of the bolt in the clamping structure (4) to prevent the bolt from slipping.

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