Metal framework fiber resin-based concrete pipeline

Abstract

The utility model provides a metal framework fiber resin-based concrete pipeline. The metal framework fiber resin-based concrete pipeline comprises a fiber anti-seepage layer which is arranged on the outer side wall of a pipeline mold core and is wound and coated by leaching resin; the outer side wall of the fiber anti-seepage layer is coated with a one-way fiber layer through leaching resin; the outer side wall of the unidirectional fiber layer is wound and coated with a metal framework reinforced fiber resin-based concrete layer through leaching resin; the outer side wall of the metal framework reinforced fiber resin-based concrete layer is wound and coated with an outer annular fiber coating layer through leaching resin; continuous fibers adopted by the unidirectional fiber layer are of a fiber structure horizontally distributed in the axial direction of the pipeline mold core. Fibers of the metal framework reinforced fiber resin-based concrete layer are inorganic fibers and fabrics and metal fibers and fabrics; a metal framework of the metal framework reinforced fiber resin-based concrete layer is made of metal fibers, fabrics and metal wire meshes.

Description

Technical Field

[0001] The utility model relates to the field of municipal pipeline production, in particular to a metal skeleton fiber resin-based concrete pipeline. Background Art

[0002] Fiber-reinforced resin-based concrete composite municipal pipes are high-performance composite pipes that are widely used in urban water supply, drainage, sewage treatment, reclaimed water reuse, agricultural irrigation and other fields. With their unique structure and material properties, the pipes play an irreplaceable role in municipal engineering.

[0003] In the prior art, the pipeline is mainly composed of an inner lining layer, a fiber-wound sand-interlayer layer and an outer protective layer; the inner lining layer is usually made of corrosion-resistant resin material to ensure the sealing and corrosion resistance of the pipeline when conveying the medium; the fiber-wound sand-interlayer layer must have extremely high strength and rigidity to withstand various pressures inside and outside the pipeline; the outer protective layer plays a role in preventing the pipeline from being eroded and damaged by the external environment;

[0004] However, despite the many advantages of pipelines, in the prior art, pipelines still have certain defects in axial strength; in municipal engineering, pipelines need to withstand loads from the soil and other factors, both axially and circumferentially; however, in the design and manufacturing process of pipelines in the prior art, due to the lack of continuous fiber axial distribution, the axial strength is insufficient, and the pipelines are prone to deformation, cracking, or even breakage when subjected to large axial and circumferential loads. Therefore, the utility model adds an axial unidirectional fiber layer.

[0005] Specifically, due to problems in the design and molding technology, in the design and manufacturing of the reinforcement layer of the pipeline in the prior art, only the circumferential strength and stiffness of the pipeline can be considered, resulting in insufficient axial strength and stiffness; in addition, the circumferential strength, stiffness and impact strength of the pipeline in the prior art also need to be strengthened during the manufacturing process. By adding metal skeletons such as metal fibers, fabrics and metal wire mesh, the circumferential stiffness and impact strength of the pipeline are improved, the product cost is reduced, and at the same time the overall performance of the pipeline is guaranteed to meet the safety of transportation, construction and use. Utility Model Content

[0006] In order to solve the problems of poor axial strength and high circumferential performance requirements in municipal pipelines in the prior art, the utility model provides a metal skeleton fiber resin-based concrete pipeline;

[0007] The utility model provides a metal skeleton fiber resin-based concrete pipeline adopts the following technical solution:

[0008] A metal skeleton fiber resin-based concrete pipeline, comprising: a fiber water-proof layer, a unidirectional fiber layer, a metal skeleton reinforced fiber resin-based concrete layer and an outer annular fiber coating layer, which are laid sequentially from the inside to the outside;

[0009] Furthermore, the fiber water-proof layer is formed by coating the pipe mold core with short-cut fibers and fiber fabrics and then soaking them in resin glue;

[0010] The unidirectional fiber layer is formed by continuous fibers unidirectionally distributed along the core direction of the composite municipal pipe mold and fixedly wrapped around the fiber water-proof layer after being soaked in resin glue. The continuous fibers distributed along the core direction of the pipe mold and the continuous fibers wound around the core are perpendicular to each other.

[0011] The metal skeleton reinforced fiber resin-based concrete layer is formed by winding and coating continuous fibers and fabrics, chopped fibers, quartz sand, metal fibers and fabrics, and metal wire mesh on the unidirectional fiber layer and then soaking in resin glue;

[0012] The outer annular fiber coating layer is formed by winding and coating continuous fibers or glass fiber cloth on the metal skeleton reinforced fiber resin-based concrete layer and then being soaked in resin glue.

[0013] In summary, the beneficial effects of the utility model are:

[0014] The utility model provides municipal pipes with further axial strength by adding a unidirectional fiber layer; the fibers in the unidirectional fiber layer are arranged axially according to the outer periphery of the pipe mold core, which makes the pipe product have extremely high axial tensile strength; when the pipe is subjected to external force, these fibers can effectively bear the axial stress, thereby improving the overall performance of the pipe.

[0015] The unidirectional fiber layer not only has high strength, but also improves axial stiffness, which means that when the pipeline is subjected to external force, the unidirectional fiber layer can effectively resist deformation and keep the shape and size of the pipeline stable. This enhanced stiffness helps to reduce deformation of the pipeline during use and improve the overall stability of the pipeline.

[0016] In addition, the metal skeleton reinforced fiber resin-based concrete layer has added metal mesh, metal fiber and fabric, which improves the annular strength and rigidity of the pipeline. When the pipeline is subjected to external impact or pressure changes, the presence of metal mesh, metal fiber and fabric materials with high elastic modulus and non-deformability can ensure that the pipeline structure is not easily damaged. Glass fiber cloth is added to the outer annular fiber coating layer, and its fiber distribution is more reasonable, which improves the compressive strength, fatigue resistance and weather resistance of the pipeline, and further improves the overall performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a metal skeleton fiber resin-based concrete pipe of the utility model;

[0018] Figure 2 This is a schematic diagram of a metal mesh in a metal skeleton reinforced fiber resin-based concrete layer of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the unidirectional fiber layer forming device of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a manufacturing method of a metal skeleton fiber resin-based concrete pipe.

[0021] As shown in the figure: 1- pipe core, 2- fiber anti-seepage layer, 3- unidirectional fiber layer, 4- metal skeleton reinforced fiber resin-based concrete layer, 5- outer annular fiber coating layer, 6- bracket, 61- yarn disc transmission device, 62- yarn disc, 63- yarn ball, 64- yarn dividing and collecting plate. DETAILED DESCRIPTION

[0022] Example 1

[0023] A metal skeleton fiber resin-based concrete pipe, comprising: a fiber water-proof layer 2, a unidirectional fiber layer 3, a metal skeleton reinforced fiber resin-based concrete layer 4 and an outer annular fiber coating layer 5, which are laid sequentially from the inside to the outside;

[0024] The fiber anti-seepage layer 2 is formed by short-cut fibers and fiber fabrics wrapped around the pipe mold core 1 and impregnated with resin glue; the unidirectional fiber layer 3 is formed by continuous fibers distributed unidirectionally along the composite municipal pipe mold core 1 and circumferentially wound and fixedly wrapped on the fiber anti-seepage layer 2 and impregnated with resin glue, and the continuous fibers distributed along the pipe mold core 1 are perpendicular to the continuous fibers wound in the circumferential direction; the metal skeleton reinforced fiber resin-based concrete layer 4 is formed by continuous fibers and fabrics, short-cut fibers, quartz sand, metal fibers and fabrics, and metal mesh wrapped around the unidirectional fiber layer 3 and impregnated with resin glue; the outer circumferential fiber coating layer 5 is formed by glass fiber cloth wrapped around the metal skeleton reinforced fiber resin-based concrete layer 4 and impregnated with resin glue.

[0025] Example 2

[0026] A metal skeleton fiber resin-based concrete pipe, comprising: a fiber water-proof layer 2, a unidirectional fiber layer 3, a metal skeleton reinforced fiber resin-based concrete layer 4 and an outer annular fiber coating layer 5, which are laid sequentially from the inside to the outside;

[0027] The fiber anti-seepage layer 2 is formed by short-cut fibers and fiber fabrics wrapped on the pipe core 1 and impregnated with resin; the unidirectional fiber layer 3 is formed by continuous fibers unidirectionally distributed along the composite municipal pipe core 1 and annularly wound and fixedly wrapped on the fiber anti-seepage layer 2 and impregnated with resin glue, and the continuous fibers distributed along the pipe core 1 are perpendicular to the continuous fibers wound annularly; the metal skeleton reinforced fiber resin-based concrete layer 4 is formed by continuous fibers and fabrics, short-cut fibers, quartz sand, metal fibers and fabrics, and metal wire mesh being wound and coated on the unidirectional fiber layer 3 and impregnated with resin glue; the outer annular fiber coating layer 5 is formed by continuous fibers wound and coated on the metal skeleton reinforced fiber resin-based concrete layer and impregnated with resin glue.

[0028] In the above-mentioned embodiment 1 and embodiment 2, the continuous fibers of the unidirectional fiber layer 3 are used as the main radial strength reinforcement material in the pipeline, providing strong axial tensile and bending strength; it can reduce the bending deformation of the product while ensuring the radial strength, thereby ensuring the construction safety of the pipeline and the safety of the pipeline interface during use;

[0029] Chopped fibers: Chopped fibers can enhance the material’s resistance to cracking;

[0030] Quartz sand: Quartz sand is a component of the metal skeleton reinforced fiber resin-based concrete layer, which can improve the rigidity of the product and reduce the cost, and has good economic efficiency;

[0031] Metal mesh, metal fiber and fabric: Metal materials have certain strength and high material elastic modulus. While improving the rigidity of the pipeline, they can also enhance the compressive performance of the pipeline. They can ensure the close bonding between other materials in the metal skeleton reinforced fiber resin-based concrete layer and improve the overall performance of the pipeline.

[0032] The design of the metal skeleton reinforced fiber resin-based concrete layer 4 combines the advantages of continuous fiber, chopped fiber, quartz sand, metal mesh, metal fiber and fabric, so that the pipeline has excellent performance in strength, rigidity and impact resistance, while reducing product costs and improving the service life and safety of the pipeline;

[0033] A method for manufacturing a metal skeleton fiber resin-based concrete pipe comprises the following steps:

[0034] SP1: Preliminary preparation: Select a suitable pipe core 1 and prepare the required raw materials, including continuous fibers and fabrics, chopped fibers, quartz sand, wire mesh, metal fibers and fabrics, glass fiber cloth, etc., as well as resin glue;

[0035] SP2: Fabrication of fiber water-proof layer 2: Short-cut fibers and fiber fabrics are evenly laid on the outside of the pipe mold core 1 according to the design requirements; the fibers are impregnated with resin glue using a resin or other adhesive material to form a fiber water-proof layer 2;

[0036] SP3: Production of unidirectional fiber layer 3: On the outside of the fiber water-proof layer 2, a unidirectional fiber laying device that rotates synchronously with the mold core is used to lay continuous fibers in a specific direction and bind them with hoop-wound continuous fibers; similarly, after being soaked with resin glue, a unidirectional fiber layer 3 is formed;

[0037] SP4: Preparation of metal skeleton reinforced fiber resin-based concrete layer 4: According to the designed proportion, continuous fibers and fabrics, chopped fibers, quartz sand, metal wire mesh, metal fibers and fabrics are evenly laid on the outside of the unidirectional fiber layer 3; similarly, after being soaked with resin glue, a metal skeleton reinforced fiber resin-based concrete layer 4 is formed;

[0038] SP5: Production of outer annular fiber coating layer 5: On the outside of the metal skeleton reinforced fiber resin-based concrete layer, continuous fiber or glass fiber cloth is laid according to the design requirements; after being soaked with resin glue, the outer annular fiber coating layer 5 of the pipeline is formed;

[0039] SP6: Overall curing and demoulding: The manufactured pipe is overall cured and demoulded;

[0040] SP7: Post-processing: After the curing is completed, the pipeline products shall be trimmed and cut as necessary;

[0041] In the above method, the resin used in SP1-SP5 is an unsaturated double bond system resin;

[0042] like Figure 2 , a device for producing metal skeleton fiber resin-based concrete pipes, including a pipe production equipment body, and also including a unidirectional fiber molding device installed on the outside of the pipe production equipment mold core for realizing the above-mentioned unidirectional fiber layer 3; the unidirectional fiber layer 3 molding device includes a bracket 6 and a roller, a rotating yarn disc 62 and a yarn ball 63 and a yarn dividing and collecting plate 64, and a yarn disc transmission device 61, the bracket 6 is equipped with a rotating roller, the rotating roller is equipped with a yarn disc 62, and the yarn disc 62 is fixed with evenly distributed multi-layer yarn balls 63 and a yarn dividing and collecting plate 64, the yarn disc 62 rotates synchronously with the mold core through the yarn disc 62 transmission device 61 and the control system, and the continuous fiber yarn on the yarn ball 63 passes through the yarn dividing and collecting plate 64 to achieve uniform laying along the axial direction of the mold core, and is fixed by the continuous fiber winding yarn;

[0043] The rotation speed of the rotating yarn disc 62 is synchronized with the rotation speed of the pipeline mold core 1 of the pipeline production equipment body;

[0044] The number of the yarn balls 63 is N, where N≥2; the yarn balls 63 are distributed on the outer wall of the yarn disc 62 in a circular array with the geometric center of the rotating yarn disc 62 as the center.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A metal skeleton fiber resin-based concrete pipe, characterized in that include: The fiber anti-seepage layer, unidirectional fiber layer, metal skeleton reinforced fiber resin-based concrete layer and outer annular fiber coating layer are laid in sequence from the inside to the outside.

2. A metal skeleton fiber resin-based concrete pipe according to claim 1, characterized in that: The fiber water-proof layer is formed by coating the pipe mold core with short-cut fibers and fiber fabrics and then impregnating the pipe mold core with resin. The unidirectional fiber layer is formed by continuous fibers unidirectionally distributed along the direction of the pipe mold core and wound and fixedly coated on the fiber water-proof layer by annular fibers, and then impregnated with resin. The continuous fibers distributed along the direction of the pipe mold core and the continuous fibers wound in the annular direction are perpendicular to each other. The metal skeleton reinforced fiber resin-based concrete layer is formed by winding and coating the unidirectional fiber layer and then impregnating it with resin; The outer annular fiber coating layer is formed by winding and coating glass fiber cloth on the fiber-reinforced resin-based concrete layer and then impregnating it with resin.

3. A metal skeleton fiber resin-based concrete pipe according to claim 1, characterized in that: The fiber water-proof layer is formed by coating the pipe mold core with short-cut fibers and fiber fabrics and then impregnating the pipe mold core with resin. The unidirectional fiber layer is formed by continuous fibers unidirectionally distributed along the direction of the pipe mold core and wound and fixedly coated on the fiber water-proof layer by annular fibers, and then impregnated with resin. The continuous fibers distributed along the direction of the pipe mold core and the continuous fibers wound in the annular direction are perpendicular to each other. The metal skeleton reinforced fiber resin-based concrete layer is formed by winding and coating the unidirectional fiber layer and then impregnating it with resin; The outer annular fiber coating layer is formed by winding and coating continuous fibers on the fiber-reinforced resin-based concrete layer and then impregnating the layer with resin.

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