CN201748046U - FRP Lined Reinforced Concrete Pipe - Google Patents

Abstract

The utility model provides a glass steel pipe lined with reinforced concrete, which belongs to the field of composite pipes, and structurally comprises a pipe body, the interior of the pipe body is a cavity channel, the pipe body is formed by compounding an inner liner layer with an outer protective layer, the inner liner layer is sheathed in the outer protective layer, the inner liner layer comprises at least one glass steel layer, the outer protective layer comprises at least one reinforced concrete layer, the outer diameter of the outer protective layer is taken as the outer surface of the pipe body, and the inner diameter of the inner liner layer is taken as the inner wall surface of the pipe body. The glass steel pipe lined with the reinforced concrete has simple structure and high corrosion resistance, does not need to take any protective measure, and is long in service life, and can meet different construction requirements. For the glass steel pipe lined with the reinforced concrete, the reliability, the advancement and the economy of a pipeline section can be upgraded to a new level, thereby being a novel energy-saving and environment-friendly product.

Description

FRP Lined Reinforced Concrete Pipe

technical field

The utility model belongs to the technical field of water supply and drainage pipes, in particular to a pipe made of glass fiber reinforced plastic and reinforced concrete layers, which is environmentally friendly, corrosion-resistant, high-efficiency, energy-saving and low-cost.

Background technique

In the current construction of various water supply and drainage projects, the most common pipes mainly include cement pipes, cast iron pipes, steel pipes, aluminum-plastic composite pipes, high-density polyethylene pipes, and glass steel pipes. Among these pipeline types, cement pipes are low in strength and high in density, and the pipe walls are prone to breed bacteria that pollute water quality, so they have been discontinued at present; while cast iron pipes and steel pipes are not corrosion-resistant, high in cost, heavy in weight, and difficult to transport; aluminum Plastic composite pipes are only used for small-diameter cold water pipes, and their size is usually only 40-60mm, and the production cost is very high; high-density polyethylene pipes have low strength, are not resistant to high pressure, have large deformation, high cost, and are flexible. The length is only 2-3m, which is inconvenient to install. FRP pipes have excellent performance in terms of specific strength and corrosion resistance, but the cost is high and the installation requirements are high, and there are certain restrictions in use.

The selection of pipes for engineering should not only consider technology, quality reliability, and advancement, but also consider its economy. However, among the pipe types listed above, no matter which pipe is selected, it cannot meet the best requirements, and in the later stage of the project construction, its service life is short, and the operation and maintenance costs remain high. This is the reason why the cost of various pipeline engineering constructions has repeatedly hit new highs, and it does not conform to the basic national policy of sustainable development formulated by our country.

Contents of the invention

Aiming at the problems in the background technology, the utility model designs a fiberglass-lined reinforced concrete pipe with simple structure, reasonable design, good sealing performance, environmental protection, corrosion resistance, high efficiency and energy saving, and low cost.

In order to achieve the above purpose, the technical solution of the utility model is: a reinforced concrete pipe lined with glass fiber reinforced plastics, belonging to composite pipes. The structure includes a pipe body, which is a cavity channel. The pipe body is composed of an inner liner and an outer sheath. The inner liner is sleeved inside the outer sheath. The protective layer includes at least one reinforced concrete layer combined with concrete and reinforced concrete, the outer diameter of the outer protective layer is the outer surface of the pipe body, and the inner diameter of the inner lining layer is the inner wall surface of the pipe body.

Through such a design, the utility model effectively solves the problem of mismatching rigidity and strength of the pure fiber-wound glass steel pipe wall structure, reduces the manufacturing cost while improving the rigidity of the pipeline, and the inner wall of the pipeline is smooth, the resistance along the way is small, and the transportation cost And maintenance costs are low, environmental protection, corrosion resistance, high efficiency and energy saving, and its comprehensive economic advantages are obvious.

Description of drawings

Fig. 1 is a structural perspective view of the utility model;

Fig. 2 is a front sectional view of the structure of the utility model.

In the figure, 1. pipe body, 2. outer protective layer, 3. inner lining layer.

Detailed ways

As shown in Figures 1 to 2, the pipe body 1 with a cavity in the middle is bonded and compounded by an inner liner 3 and an outer sheath 2, and the inner liner 3 is made of a single layer of glass fiber reinforced plastic, that is, FRP Layer, the thickness of the FRP layer reaches 2.5mm, the inner surface is smooth, and the outer protective layer 2 adopts a single layer of reinforced concrete layer, the reinforced concrete layer is made of concrete and reinforced concrete, because the inner diameter of the inner lining layer 3 is smaller than the outer layer The inner diameter of the sheath 2 and the outer diameter of the inner lining 3 are smaller than the outer diameter of the outer sheath 2, and the outer diameter of the inner lining 3 corresponds to the inner diameter of the outer sheath 3. The inner lining 3 can rely on its own stiffness and reinforcement The ribs are directly embedded in the outer sheath 2 and fixed by bonding, the outer diameter of the outer sheath 2 is used as the outer surface of the pipe body 1 , and the inner diameter of the inner lining layer 3 is used as the inner wall surface of the pipe body 1 .

The overall light weight of the utility model avoids the uneven settlement phenomenon of the entire pipeline in a very harsh soil environment. The inner wall of the pipe body is smooth and has a large flow rate, and it can be easily connected with other pipe materials to meet different construction requirements. .

According to the above-mentioned technical scheme, those skilled in the art can also design more pipelines with different structural forms according to actual needs, but the above-mentioned embodiments are only listed to illustrate the utility model, and are not used to limit the utility model. Structures with equivalent effects transformed by the technical solution all belong to the protection scope of the present utility model.

Claims (4)

1. a frp lining concrete reinforced pipe comprises a body, it is characterized in that: be cavity passage in the body, body is composited by inside liner and outer protective layer, and inside liner is set in the inside of outer protective layer.

2. frp lining concrete reinforced pipe according to claim 1 is characterized in that: described inside liner comprises the frp layer of one deck at least.

3. frp lining concrete reinforced pipe according to claim 1 is characterized in that: described outer protective layer comprises that one deck is by the reinforced concrete floor of concrete and reinforced concrete mixing at least.

4. frp lining concrete reinforced pipe according to claim 1 is characterized in that: the external diameter of described outer protective layer is the outer surface of body, and the internal diameter of inside liner is the internal face of body.

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