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CN-121992817-A - Urban fiber composite material spiral rib hollow pipe gallery and preparation method thereof

CN121992817ACN 121992817 ACN121992817 ACN 121992817ACN-121992817-A

Abstract

The application discloses a hollow pipe gallery made of a fiber composite material spiral rib for cities and a preparation method thereof, wherein the hollow pipe gallery is hollow and circular, the hollow pipe gallery is respectively provided with an inner flame retardant layer, an inner structural layer, a hollow layer, an outer structural layer and a spiral rib layer from inside to outside, and all layers are adhered into a whole, wherein at least one grid structural member is arranged in the axial direction of the hollow pipe gallery, the grid structural member divides the hollow space of the pipe gallery into a plurality of installation positions in the axial direction, the flame retardant layer is formed by glass fiber yarns and/or basalt fiber yarns which are mixed with flame retardant resin and are wound in a reciprocating manner, and the inner structural layer and the outer structural layer are formed by glass fiber yarns and/or basalt fiber yarns which are mixed with resin and are wound in a reciprocating manner. The hollow pipe gallery is excellent in structural stability, corrosion resistance and high temperature resistance by adopting a fiber composite material and spiral rib hollow design.

Inventors

  • LV SHIBIN
  • LV HE
  • Lv Mohan

Assignees

  • 新疆强州玻璃钢管业有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (10)

  1. 1. A spiral rib hollow pipe gallery made of fiber composite materials for cities is in a hollow circular tube shape, the hollow pipe gallery is provided with an inner flame retardant layer, an inner structural layer, a hollow layer, an outer structural layer and a spiral rib layer from inside to outside, all layers are adhered into a whole, at least one cellular structural member is arranged in the axial direction of the hollow pipe gallery, the cellular structural member divides the hollow space of the pipe gallery into a plurality of installation positions in the axial direction, the flame retardant layer is formed by glass fiber yarns and/or basalt fiber yarns mixed with flame retardant resin and wound in a reciprocating mode, the inner structural layer and the outer structural layer are formed by glass fiber yarns and/or basalt fiber yarns mixed with resin and wound in a reciprocating mode, the hollow layer is formed by a plurality of hollow pipe fittings adhered to the outer surface of the inner structural layer and coaxially arranged with the pipe gallery, and the spiral rib layer is formed by fiber columns spirally wound on the surface of the outer structural layer.
  2. 2. A city fiber composite spiral rib hollow pipe gallery as set forth in claim 1 wherein adjacent ones of said inner, hollow, outer, spiral rib layers have adhesive resin layers.
  3. 3. A city fiber composite spiral rib hollow tube gallery as claimed in claim 1 wherein the thickness of the inner barrier layer is 10 millimeters to 15 millimeters.
  4. 4. A city fiber composite spiral rib hollow tube lane as in claim 1 wherein said inner structural layer has a thickness of 1-3% of the diameter of the tube lane.
  5. 5. A city fiber composite material spiral rib hollow pipe gallery as set forth in claim 1, wherein said hollow pipe member has a D-shaped cross section, and is disposed on the outer surface of the inner structural layer in a circular distribution with respect to the flat bottom surface, forming a hollow layer.
  6. 6. A city fiber composite spiral rib hollow tube lane as in claim 1 wherein said hollow tube is a fiber composite article.
  7. 7. A city fiber composite spiral rib hollow tube lane as in claim 1 wherein the pitch of the fiber column in said spiral rib layer is 50 to 100 millimeters.
  8. 8. A fiber composite spiral rib hollow tube gallery as claimed in claim 1 wherein there are a plurality of said lattice structures.
  9. 9. A municipal fiber composite spiral rib hollow tube gallery as claimed in claim 1 wherein the inner and/or outer surfaces of said cellular structure have a flame retardant layer.
  10. 10. A method for preparing the urban fiber composite material spiral rib hollow pipe gallery according to claim 1, which is characterized by comprising the following steps: step S1, mixing high-temperature resistant resin and a liquid flame retardant according to a preset proportion, adding a proper amount of curing agent and accelerator, and fully and uniformly stirring; uniformly coating resin on glass fiber yarns or basalt fiber yarns through prepreg equipment, and winding the glass fiber yarns or basalt fiber yarns layer by layer on the surface of a die by adopting a reciprocating winding process to finally form an inner resistance layer with the thickness of 10-15 mm so as to ensure excellent flame retardant property and high temperature resistance; step S2, after the inner flame-retardant layer is solidified, mixing glass fiber yarns or basalt fiber yarns with epoxy resin or o-benzene type unsaturated resin, adding a proper amount of curing agent and accelerator, uniformly coating resin on fiber yarns through presoaking equipment, uniformly winding the fiber yarns on the surface of the inner flame-retardant layer in a reciprocating winding mode to form an inner structural layer with the thickness of 1-3% of the diameter of a pipeline so as to provide necessary mechanical strength and structural support; step S3, uniformly placing the D-shaped pipe fitting formed by pultrusion on the surface of the inner structural layer before the inner structural layer is not completely cured, wherein the bottom plane of the pipe faces the inner structural layer and the arc surface faces outwards so as to ensure the light weight structural effect and reasonable mechanical property of the hollow layer; S4, mixing glass fiber yarns or basalt fiber yarns with epoxy resin or o-benzene type unsaturated resin, adding a curing agent and an accelerator, uniformly coating resin on fiber yarns through a presoaking device, and uniformly winding the fiber yarns on the surface of a hollow layer in a reciprocating winding mode to form an outer structure layer with the thickness of 5-10 mm, thereby providing additional strength and protection for the whole structure; And S5, after the outer structural layer is solidified, coating resin on glass fiber yarns or basalt fiber yarns through a presoaking device, gathering the glass fiber yarns or basalt fiber yarns into a cylinder shape through a gathering mechanism, and controlling the stretching speed and the stretching tension to ensure the diameter consistency and the surface smoothness of the fiber column. Winding the fiber strip column on the surface of the outer structural layer in a spiral mode, wherein the spiral pitch is 50-100 mm, so that a spiral rib reinforced protective layer is formed, and the compression resistance and the overall rigidity of the pipeline are enhanced; S6, rolling the metal I-steel or the channel steel into a grid structure member matched with the inner diameter of the inner fire-resistant layer, embedding the grid structure member on the inner wall of the pipe gallery according to the standard with the interval of 3 meters, and spraying fireproof materials on the outer surface of the grid structure member to improve the overall fire resistance and safety.

Description

Urban fiber composite material spiral rib hollow pipe gallery and preparation method thereof Technical Field The application relates to the field of composite building materials, in particular to a fiber composite material spiral rib hollow pipe gallery for cities and a preparation method thereof. Background Urban pipe lanes are used as key components of urban infrastructure, and the construction and maintenance quality directly influences the safety and reliability of urban operation. At present, the traditional urban pipe gallery is mainly made of cement prefabricated parts and metal pipe galleries. Although these materials have some structural strength and load-bearing capacity, many disadvantages are still exposed in practical applications. With the advancement of urban modernization, the performance requirements of urban piping systems on structural materials are continuously improved, and the limitations of traditional materials are increasingly revealed. First, existing cement prefabricated pipe lanes face higher engineering and construction costs in construction. The cement material requires a lot of equipment and manual operations during transportation, installation and construction, which greatly increases the capital investment of the project. In addition, the self weight of the cement structure is large, so that the installation difficulty and the construction standard are improved. In addition, due to poor flatness of the cement material, it is difficult to ensure the overall effect after construction, which puts higher demands on the construction quality. In long-term use, the cement prefabricated pipe gallery is easy to crack, so that the structural strength is reduced, the potential safety hazard is increased, and the stability of the cement pipe gallery is difficult to guarantee especially in urban environments with complex geological conditions. Meanwhile, the cement material has weak earthquake resistance and is difficult to resist the impact of natural disasters, so that the wide application of the cement material in urban infrastructures is limited. Second, the metal pipe lane is excellent in strength but has significant drawbacks in corrosion resistance and high temperature resistance. In urban underground environments, metallic materials are susceptible to moisture and corrosive substances, resulting in tarnishing and aging of the piping structures. In order to extend the service life of metal pipe lanes, complex corrosion resistant coating treatments are often required, which however not only adds significant material and construction costs, but also makes the maintenance process relatively cumbersome. The metal material also has the defect of coping with high-temperature environments in cities, and the use of the metal material in certain special application scenes is limited. In addition, the dead weight of tubular metal resonator greatly increases the degree of difficulty of transportation and installation, need use large-scale equipment to hoist and mount to construction complexity and cost have further been improved. More importantly, the prior art is relatively backward in design process and construction mode, and the requirements of modern cities on the intellectualization and multifunctionality of the pipe gallery system are difficult to meet. The traditional material has the defects of complex installation process and long construction period, and is difficult to adapt to the construction requirements of urban pipe gallery diversification. Meanwhile, due to the fact that the ring rigidity of the materials is insufficient, cracking or breakage is easy to occur when the materials are impacted by external force, and therefore the overall performance and safety of the pipe gallery are affected. The construction process of traditional piping lane still needs a large amount of accessories and bearing structure, has further increased construction complexity and maintenance degree of difficulty. In addition, the universality of the traditional pipe gallery materials is poor, and the traditional pipe gallery materials are difficult to combine with modern intelligent detection systems, communication facilities and the like, so that the function expansion capacity of the urban pipe gallery is limited. Aiming at the problems in the prior art, the development of a novel urban fiber composite material spiral rib hollow pipe gallery is particularly urgent. Disclosure of Invention The hollow pipe gallery is characterized by being excellent in structural stability, corrosion resistance and high temperature resistance by adopting a fiber composite material and spiral rib hollow design, and has the remarkable characteristics of light weight, high ring stiffness, collision resistance, cracking resistance and the like, so that the defects of the traditional material in the aspects of construction cost, durability, construction difficulty and the like can be effectively overcome, in addition, the