High-strength flame-retardant polyethylene pipe

Abstract

The utility model relates to the field of flame-retardant polyethylene pipes, and discloses a high-strength flame-retardant polyethylene pipe which comprises two protective layers, a lower fixing block is arranged on the close sides of the two protective layers, an upper fixing block is rotatably connected to the top side of the lower fixing block, first grooves are formed in the close sides of the upper fixing block and the lower fixing block, and the upper fixing block is rotatably connected with the lower fixing block. Second grooves are formed in the outer walls of the sides, close to each other, of the two protection layers, flame-retardant layers are arranged on the inner walls of the protection layers, heat insulation layers are arranged on the inner walls of the flame-retardant layers, reinforcing layers are arranged on the inner walls of the heat insulation layers, and inner pipe layers are arranged on the inner walls of the reinforcing layers. According to the utility model, through the combination of the flame-retardant layer and the reinforcing layer, the combustion speed of the pipeline in a fire disaster can be effectively slowed down, the fire behavior can be controlled, the loss caused by the fire disaster can be reduced, and meanwhile, the reinforcing layer can effectively increase the tensile strength, pressure resistance and extrusion resistance of the pipeline, so that the pipeline is prevented from being damaged due to the influence of geological movement or external pressure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flame -retardant polyethylene pipe, especially to a high -strength flame -retardant polyethylene pipe. BACKGROUND

[0002] Polyethylene is a kind of thermoplastic resin prepared by polymerization of ethylene, polyethylene is odorless and nontoxic, and the hand is similar to wax, has excellent low temperature resistance, good chemical stability, is widely used in farmland irrigation pipeline aspect.

[0003] When fire occurs, high temperature flame can cause damage to the pipeline, thereby affecting the liquid conveying in the pipeline, and the collapse of the wall, column and other objects with high hardness in the building can also cause damage to the pipeline, so the pipeline needs to have both flame -retardant material and material that can stabilize the overall structure of the pipeline, for this, the present application proposes a high -strength flame -retardant polyethylene pipe. UTILITY MODEL CONTENT

[0004] The utility model discloses a high -strength flame -retardant polyethylene pipe, the combination of fire -retardant layer and reinforcing layer can effectively slow down the burning speed of pipeline in the fire, help to control the fire, reduce the loss caused by fire, give more time to the fire fighting personnel to carry out emergency disposal and extinguishing, and the reinforcing layer can effectively increase the tensile strength, pressure resistance and extrusion resistance of the pipeline, so as to improve the overall structural strength and stability of the pipeline, prevent the pipeline from being damaged by geological movement or external pressure, the combination of upper fixed block and lower fixed block can quickly connect the pipeline with the pipeline, the upper fixed block and lower fixed block are fixed through bolt, so as to guarantee the stability of the connecting portion, the recess one and recess two can ensure that the connecting portion is always located between the two fixed blocks, avoid the displacement of the pipeline.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A high -strength flame -retardant polyethylene pipe, including two protective layers, the proximal side of two protective layers is provided with lower fixed block, the top side of lower fixed block is connected with upper fixed block, the proximal side of upper fixed block and lower fixed block is all set up recess one, the outer wall of the proximal side of two protective layers is all set up recess two, the inner wall of protective layer is provided with fire -retardant layer, the inner wall of fire -retardant layer is provided with heat insulating layer, the inner wall of heat insulating layer is provided with reinforcing layer, the inner wall of reinforcing layer is provided with inner tube layer.

[0007] Further, the material of the protective layer is polyvinyl chloride material.

[0008] Further, the material of the fire -retardant layer is ethylene-vinyl acetate copolymer material.

[0009] Further, the material of the heat insulation layer is foamed polyethylene material.

[0010] Further, the material of the reinforcing layer is polyester fiber material.

[0011] Further, the material of the inner tube layer is polyethylene material

[0012] Further, the front side of the upper fixing block and the lower fixing block is provided with a threaded hole, and a bolt is threadedly connected in the threaded hole.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1、The combination of the fire-retardant layer and the reinforcing layer can effectively slow down the burning speed of the pipeline in a fire, which helps to control the fire and reduce the loss caused by the fire, giving more time for the fire fighters to deal with the emergency and extinguish the fire.

[0015] 2、The combination of the upper fixing block and the lower fixing block can quickly connect the pipelines with each other, and the bolts can fix the upper fixing block and the lower fixing block, thereby ensuring the stability of the connection part. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A perspective view of a high-strength fire-retardant polyethylene pipe is provided for the utility model;

[0017] Fig. 2 A structure diagram of a lower fixing block of a high-strength fire-retardant polyethylene pipe is provided for the utility model;

[0018] Fig. 3 A schematic diagram of the internal structure of a pipeline of a high-strength fire-retardant polyethylene pipe is provided for the utility model.

[0019] LEGEND:

[0020] 1, protective layer; 2, upper fixing block; 3, lower fixing block; 4, groove one; 5, groove two; 6, fire-retardant layer; 7, heat insulation layer; 8, reinforcing layer; 9, inner tube layer. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] With reference to Figs. 1-3 The utility model provides an embodiment: a kind of high-strength flame-retardant polyethylene pipe, including two protective layers 1, pipe can be protected from external environment damage, improve the durability and service life of pipeline two protective layers 1 The proximal side of one side is provided with lower fixed block 3, the top side of lower fixed block 3 is rotatably connected with upper fixed block 2, the combination of upper fixed block 2 and lower fixed block 3 can be connected with pipeline and pipeline each other, the proximal side of upper fixed block 2 and lower fixed block 3 is all set with recess one 4, the outer wall of the proximal side of two protective layers 1 is all set with recess two 5, recess one 4 and recess two 5 can guarantee the connecting place of pipeline always between upper fixed block 2 and lower fixed block 3, avoid displacement of pipeline in application process, the inner wall of protective layer 1 is provided with flame-retardant layer 6, flame-retardant layer 6 can effectively prevent flame propagation, reduce the speed of pipeline combustion, reduce fire risk, improve the safety performance of pipeline, the inner wall of flame-retardant layer 6 is provided with heat insulation layer 7, the role of heat insulation layer 7 is to reduce the heat conduction and heat loss of pipeline surface, improve the energy-saving performance of pipeline. The inner wall of heat insulation layer 7 is provided with reinforcing layer 8, reinforcing layer 8 is used to enhance the tensile and compression resistance of pipeline, improve the structural strength and stability of pipeline, the inner wall of reinforcing layer 8 is provided with inner tube layer 9, inner tube layer 9 has good chemical inertness and corrosion resistance, can protect the inside of pipeline from being eroded by medium.

[0023] The material of protective layer 1 is polyvinyl chloride material, which can protect the pipeline from external environment damage and improve the durability and service life of the pipeline. The material of flame-retardant layer 6 is ethylene-vinyl acetate copolymer material, which can effectively block the penetration of oxygen and reduce the burning of flame. The material of heat insulation layer 7 is foamed polyethylene material, which helps to improve the energy-saving performance of the pipeline. The material of reinforcing layer 8 is polyester fiber material, which can effectively increase the tensile strength, pressure resistance and extrusion resistance of the pipeline, thereby improving the overall structural strength and stability of the pipeline. The material of inner tube layer 9 is polyethylene material, which has good chemical inertness and corrosion resistance, and can protect the inside of the pipeline from being eroded by medium. The front side of upper fixed block 2 and lower fixed block 3 is provided with a screw hole, and a bolt is threadedly connected in the screw hole. The bolt can fix upper fixed block 2 and lower fixed block 3, thereby improving the stability of the pipeline connection.

[0024] Working principle: first, the two pipe joints are aligned, then the recess 4 of the inner wall of the lower fixed block 3 is placed on the pipe joint, the upper fixed block 2 is closed with the lower fixed block 3, and the upper fixed block 2 and the lower fixed block 3 are fixed with bolts to avoid displacement of the pipe during use, thereby affecting the use of the pipe, the protective layer 1 can effectively protect the pipe from damage from the external environment, improve the durability and service life of the pipe, the flame retardant layer 6 can effectively prevent the spread of flame, reduce the burning speed of the pipe, reduce the risk of fire, improve the safety performance of the pipe, the heat insulation layer 7 can reduce the heat conduction and heat loss of the pipe surface, improve the energy saving performance of the pipe, the reinforcing layer 8 can effectively increase the tensile strength, pressure resistance and extrusion resistance of the pipe, thereby improving the overall structural strength and stability of the pipe, and the inner pipe layer 9 can protect the inside of the pipe from erosion by the medium.

[0025] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-strength flame-retardant polyethylene pipe comprising two protective layers (1), characterized in that: Two near sides of the protection layer (1) are provided with lower fixed blocks (3), the top side of the lower fixed block (3) is rotationally connected with an upper fixed block (2), the near side of the upper fixed block (2) and the lower fixed block (3) are both provided with a groove one (4), the outer wall of the near side of the two protection layers (1) are both provided with a groove two (5), the inner wall of the protection layer (1) is provided with a flame-retardant layer (6), the inner wall of the flame-retardant layer (6) is provided with a heat insulation layer (7), the inner wall of the heat insulation layer (7) is provided with a reinforcing layer (8), the inner wall of the reinforcing layer (8) is provided with an inner tube layer (9).

2. A high strength, fire resistant polyethylene pipe according to claim 1, characterized in that: The material of the protection layer (1) is polyvinyl chloride material.

3. A high strength, fire resistant polyethylene pipe according to claim 1, characterized in that: The material of the flame-retardant layer (6) is ethylene-vinyl acetate copolymer material.

4. A high strength, fire resistant polyethylene pipe according to claim 1, characterized in that: The material of the heat insulation layer (7) is foamed polyethylene material.

5. A high strength, fire resistant polyethylene pipe according to claim 1, characterized in that: The material of the reinforcing layer (8) is polyester fiber material.

6. A high strength, fire resistant polyethylene pipe according to claim 1, characterized in that: The material of the inner tube layer (9) is polyethylene material.

7. A high strength, fire resistant polyethylene pipe according to claim 1, characterized in that: The front side of the upper fixed block (2) and the lower fixed block (3) are both provided with a screw hole, and the screw hole is threadedly connected with a bolt.

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