Large-diameter composite material pipeline applied to construction

Abstract

The utility model relates to the technical field of buildings, in particular to a large-diameter composite material pipeline applied to construction, which comprises a high-strength composite tunnel pipe, the pipe piece splicing layer is used for splicing the high-strength composite tunnel pipes; the temperature measuring sensors are arranged in the high-strength composite tunnel pipe at intervals; the high-strength composite tunnel pipe comprises a fireproof heat insulation layer, a first anti-corrosion coating layer, a steel structure layer, a second anti-corrosion coating layer, a first composite plastic protection layer, a mechanical reinforcement protection layer and a second composite plastic protection layer. According to the scheme, by arranging the fireproof heat insulation layer, the situation that a main stress layer in the pipeline is damaged due to high temperature generated by a fire disaster in the tunnel, mechanical performance is reduced, and safe use of the pipeline is endangered is prevented; the first anti-corrosion coating layer and the second anti-corrosion coating layer have the effect of preventing the metal layer from being corroded; the first composite plastic protection layer and the second composite plastic protection layer prevent corrosion of the steel structure layer, and have the advantages of being good in light resistance, appropriate in impact strength, good in acid and alkali resistance and the like.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a large-diameter composite material pipe used in construction. Background Technology

[0002] Composite material pipes are common submerged pipes in the construction industry, mainly used in underwater tunnel construction, such as long-span rivers and seabeds. Most existing tunnel pipes are mainly made of composite materials such as ductile iron, steel, and concrete, with anti-corrosion coatings applied to the surface. The strength of these materials is limited, and their strength and alkali resistance are also limited for deep-sea tunnel construction. The main reason is that the structural design has not yet been optimized. Utility Model Content

[0003] The purpose of this utility model is to provide a large-diameter composite material pipe for construction, which has the following advantages.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large-diameter composite material pipe for construction, comprising:

[0005] High-strength composite tunnel pipe;

[0006] The segment assembly layer is used to assemble high-strength composite tunnel pipes;

[0007] Temperature sensors are spaced apart inside the high-strength composite tunnel pipe;

[0008] The high-strength composite tunnel includes a fireproof and heat-insulating layer, a first anti-corrosion coating layer, a steel structure layer, a second anti-corrosion coating layer, a first composite plastic protective layer, a mechanically reinforced protective layer, and a second composite plastic protective layer. These layers are arranged sequentially from the inside out, and are connected by polymers.

[0009] Furthermore, a ventilator is installed at the top of the inner wall of the high-strength composite tunnel, and lighting devices are installed on both sides near the ventilator. Fire hydrant boxes are installed on both sides of the inner wall.

[0010] Furthermore, a concrete pavement layer is poured at the bottom of the high-strength composite tunnel.

[0011] The concrete pavement layer includes multiple support frames vertically installed at the bottom of the inner wall of the high-strength composite tunnel, wherein the middle support frame is a reinforced concrete pouring base column, and the multiple support frames are integrally cast with the support platform.

[0012] Furthermore, the surface of the support platform is covered with a tunnel surface layer, which is either an asphalt layer or a cement pavement layer.

[0013] Furthermore, space is reserved between the multiple support frames;

[0014] Furthermore, fire hydrant pipes and cable assemblies are respectively installed in the spaces on both sides of the middle support frame. The fire hydrant pipes are fixed to the side of the support frame by pipe brackets, and the cable assemblies are fixed to the side of another support frame by cable brackets.

[0015] Furthermore, a water collection pipe system is provided in the space between the supporting frames on both sides and the high-strength composite tunnel pipe.

[0016] Furthermore, the fireproof and heat-insulating layer is made of high-temperature resistant materials, and the first anti-corrosion coating layer and the second anti-corrosion coating layer are one or more of epoxy polyester mixed coating, polyurethane modified polyester coating or acrylic modified polyester coating.

[0017] Furthermore, the compressive strength of the steel structure layer is greater than 235 MPa, and the mechanically reinforced protective layer is made of high-strength metal or non-metallic materials. The high-strength metal is made of plastic-lined high-carbon steel wire or non-metallic fiber material.

[0018] Furthermore, the first composite plastic protective layer and the second composite plastic protective layer are one or more of the following: high molecular weight ethylene, high molecular weight fluoroplastic, and resin.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] This application solution uses a fireproof and heat-insulating layer to prevent high temperatures generated by a fire in the tunnel from damaging the main load-bearing layer inside the pipeline, causing a decline in mechanical properties and endangering the safe use of the pipeline. The first and second anti-corrosion coating layers prevent the metal layer from being corroded. The first and second composite plastic protective layers prevent the steel structure layer from being corroded and have the characteristics of good light resistance, suitable impact strength, and good acid and alkali resistance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the present invention;

[0022] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the concrete segment assembly and unfolding of this utility model;

[0024] Figure 4 This is a schematic diagram of the concrete pipe segments of the present invention in three sizes: A, B, and C.

[0025] Figure 5 This utility model Figure 4 Sectional view from the FF direction.

[0026] In the picture:

[0027] 1. Fireproof and heat-insulating layer; 2. First anti-corrosion coating layer; 3. Steel structure layer; 4. Second anti-corrosion coating layer; 5. First composite plastic protective layer; 6. Mechanically reinforced protective layer; 7. Second composite plastic protective layer; 8. Ventilation fan; 9. Fire hydrant box; 10. Water collection pipe system; 11. Support platform; 12. Tunnel surface layer; 13. Support frame; 14. Fire hydrant water pipe; 15. Cable integration; T1. Temperature sensor; North, segment assembly layer; 17. Embedded and connection fixing points; 18. Embedded fastening holes; 19. Flexible sealing gasket; 20. Locking hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Reference Figures 1 to 2 The large-diameter composite material pipe shown is used in construction and includes:

[0031] High-strength composite tunnel pipe;

[0032] The segment assembly layer to the north is used for assembling high-strength composite tunnel pipes;

[0033] The following explanation is provided regarding the tubular assembled layer on the north side.

[0034] The concrete segment layer is a rigid layer inside the large-diameter composite pipe. The segments are prefabricated in the factory, transported to the site, and then assembled and installed by an assembly machine.

[0035] like Figure 3 and 4 The diagram shown is an illustration of the unfolded structure, which consists of three sizes: A, B, and C. Figures A and C show segments with locking holes 23, while figure B shows segments with pre-embedded fastening holes. During installation, after the assembly machine positions the segments, workers use high-strength fixing bolts to fix A, B, and C into a ring-shaped whole.

[0036] Figure A, B, and C show concrete segment assemblies, which are installed inside the pipe by an assembly machine to form a ring and create a solid whole.

[0037] Figures A and C show segments with locking holes 20, and Figure B shows segments with pre-embedded fastening holes. During installation, after the assembly machine positions the segments, workers use high-strength fixing bolts to fix ABC into a whole.

[0038] In the diagram, 3 represent the distributed points, all of which are pre-embedded and connection fixing points 17;

[0039] In the diagram, 4 is the pre-embedded fastening hole for segment B, 4 is the locking hole for segment C, and 5 is the flexible sealing gasket 19. The high-strength fixing bolt passes through 4 in the diagram, then through the flexible sealing gasket 19 in the diagram, and enters the thread in the diagram to achieve the fixing effect.

[0040] In the diagram, 5 is a flexible sealing gasket and 19 is a flexible heat-resistant fiber cloth.

[0041] Temperature sensors T1 are spaced apart inside the high-strength composite tunnel pipe. The high-strength composite tunnel pipe includes a fireproof and heat-insulating layer 1, a first anti-corrosion coating layer 2, a steel structure layer 3, a second anti-corrosion coating layer 4, a first composite plastic protective layer 5, a mechanically reinforced protective layer 6, and a second composite plastic protective layer 7. The fireproof and heat-insulating layer 1, the first anti-corrosion coating layer 2, the steel structure layer 3, the second anti-corrosion coating layer 4, the first composite plastic protective layer 5, the mechanically reinforced protective layer 6, and the second composite plastic protective layer 7 are arranged sequentially from the inside to the outside. The fireproof and heat-insulating layer 1, the first anti-corrosion coating layer 2, the steel structure layer 3, the second anti-corrosion coating layer 4, the first composite plastic protective layer 5, the mechanically reinforced protective layer 6, and the second composite plastic protective layer 7 are connected by polymer.

[0042] The fireproof and heat-insulating layer 1 is made of high-temperature resistant material. The first anti-corrosion coating layer 2 and the second anti-corrosion coating layer 4 are one or more of epoxy polyester mixed coating, polyurethane modified polyester coating or acrylic modified polyester coating.

[0043] The compressive strength of the steel structure layer 3 is greater than 235 MPa. The mechanically reinforced protective layer 6 is made of high-strength metal or non-metal materials. The high-strength metal is made of plastic-lined high-carbon steel wire or non-metallic fiber materials. The first composite plastic protective layer 5 and the second composite plastic protective layer 7 are one or more of the following: high-molecular-weight ethylene, high-molecular-weight fluoroplastics, and resins.

[0044] It should be noted that fireproof and heat insulation layer 1 is designed to prevent high temperatures generated by fires inside the tunnel from damaging the main load-bearing layers inside the pipeline, causing a decline in mechanical properties and endangering the safe use of the pipeline. Fireproof and heat insulation layer 1 is made of porous fire-resistant material with a temperature resistance of over 1100℃.

[0045] The first anti-corrosion coating layer 2 and the second anti-corrosion coating layer 4 are made of polyester or superior anti-corrosion materials to prevent the metal layer from being corroded.

[0046] The mechanical properties of the steel structure layer 3 are determined according to different water depths, with a compressive strength greater than 235 MPa.

[0047] The materials used in the first composite plastic protective layer 5 and the second composite plastic protective layer 7 are high molecular weight ethylene, high molecular weight fluoroplastics, resins, etc., which mainly prevent corrosion of the steel structure layer and have the characteristics of good light resistance, suitable impact strength, and good acid and alkali resistance.

[0048] The mechanical properties of the 1-7 layers combined together are determined according to different water depths, but the minimum compressive strength is greater than 15 MPa under external pressure and greater than 235 MPa under internal pressure.

[0049] Temperature sensor T1 is used to monitor the temperature of the pipe during operation, with a measurement range of 1-150℃.

[0050] Example 2

[0051] Based on Embodiment 1, the distinguishing technical feature is that a ventilator 8 is provided at the top of the inner wall of the high-strength composite tunnel pipe, and lighting devices are provided on both sides near the ventilator 8. Fire hydrant boxes 9 are provided on both sides of the inner wall. The ventilator 8 and the fire hydrant boxes 9 are arranged at equal distances inside the high-strength composite tunnel pipe. The ventilator 8 is used for oxygen supply and air circulation.

[0052] Example 3

[0053] Based on Example 1, the distinguishing technical feature is that a concrete pavement layer is poured at the bottom of the high-strength composite tunnel.

[0054] The concrete pavement layer includes multiple support frames 13 vertically installed at the bottom of the inner wall of the high-strength composite tunnel, with the middle support frame 13 being a reinforced concrete casting base column. The multiple support frames 13 are integrally cast with the support platform 11. The surface of the support platform 11 is covered with a tunnel surface layer 12, which is either an asphalt layer or a cement pavement layer.

[0055] Space is reserved between multiple support frames 13; fire hydrant pipes 14 and cable assemblies 15 are respectively installed in the spaces on both sides of the middle support frame 13. The fire hydrant pipes 14 are fixed to the side of the support frame 13 by pipe brackets, and the cable assemblies 15 are fixed to the side of another support frame 13 by cable brackets. Water collection pipe systems 10 are installed in the spaces between the two side support frames 13 and the high-strength composite tunnel pipe.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large-diameter composite material pipe used in construction, characterized in that, include: High-strength composite tunnel pipe; The segment assembly layer (16) is used to assemble high-strength composite tunnel pipes; Temperature sensors (T1) are spaced apart inside the high-strength composite tunnel pipe; The high-strength composite tunnel includes a fireproof and heat-insulating layer (1), a first anti-corrosion coating layer (2), a steel structure layer (3), a second anti-corrosion coating layer (4), a first composite plastic protective layer (5), a mechanically reinforced protective layer (6), and a second composite plastic protective layer (7). The fireproof and heat-insulating layer (1), the first anti-corrosion coating layer (2), the steel structure layer (3), the second anti-corrosion coating layer (4), the first composite plastic protective layer (5), the mechanically reinforced protective layer (6), and the second composite plastic protective layer (7) are arranged sequentially from the inside to the outside. The fireproof and heat-insulating layer (1), the first anti-corrosion coating layer (2), the steel structure layer (3), the second anti-corrosion coating layer (4), the first composite plastic protective layer (5), the mechanically reinforced protective layer (6), and the second composite plastic protective layer (7) are connected by polymers.

2. The large-diameter composite material pipe for construction according to claim 1, characterized in that, The high-strength composite tunnel is equipped with a ventilator (8) at the top of its inner wall, and lighting devices are installed on both sides near the ventilator (8). Fire hydrant boxes (9) are installed on both sides of the inner wall.

3. The large-diameter composite material pipe for construction according to claim 1, characterized in that, The bottom of the high-strength composite tunnel is filled with a concrete pavement layer. The concrete pavement layer includes multiple support frames (13) vertically arranged at the bottom of the inner wall of the high-strength composite tunnel, wherein the middle support frame (13) is a reinforced concrete pouring base column, and the multiple support frames (13) are integrally cast with the support platform (11).

4. A large-diameter composite material pipe for construction according to claim 3, characterized in that, The surface of the support platform (11) is covered with a tunnel surface layer (12), which is either an asphalt layer or a cement pavement layer.

5. A large-diameter composite material pipe for construction according to claim 4, characterized in that, Space is reserved between the multiple support frames (13).

6. A large-diameter composite material pipe for construction according to claim 4, characterized in that, Fire hydrant pipes (14) and cable integration (15) are respectively installed in the spaces on both sides of the intermediate support frame (13).

7. A large-diameter composite material pipe for construction according to claim 4, characterized in that, Water collection pipe systems (10) are provided in the space between the supporting frames (13) on both sides and the high-strength composite tunnel.

8. A large-diameter composite material pipe for construction according to claim 7, characterized in that, The fireproof and heat-insulating layer (1) is made of high-temperature resistant material, and the first anti-corrosion coating layer (2) and the second anti-corrosion coating layer (4) are one or more of epoxy polyester mixed coating, polyurethane modified polyester coating or acrylic modified polyester coating.

9. A large-diameter composite material pipe for construction according to claim 8, characterized in that, The compressive strength of the steel structure layer (3) is greater than 235 MPa. The mechanically reinforced protective layer (6) is made of high-strength metal or non-metal materials. The high-strength metal is made of plastic-lined high-carbon steel wire or non-metallic fiber materials.

10. A large-diameter composite material pipe for construction according to claim 9, characterized in that, The first composite plastic protective layer (5) and the second composite plastic protective layer (7) are one or more of the following: high molecular weight ethylene, high molecular weight fluoroplastic, and resin.

Images