CN202834447U

CN202834447U - Large caliber fixed-length winding glass reinforced plastic pipeline

Info

Publication number: CN202834447U
Application number: CN 201220251722
Authority: CN
Inventors: 刘强; 靳建罡; 王磊; 叶进峰
Original assignee: ZHEJIANG SINSHI PIPE STOCK CO Ltd
Current assignee: ZHEJIANG SINSHI PIPE STOCK CO Ltd
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2013-03-27
Anticipated expiration: 2022-05-31

Abstract

The utility model discloses a large caliber fixed-length winding glass reinforced plastic pipeline. The large caliber fixed-length winding glass reinforced plastic pipeline comprises a first inner layer, a second inner layer, a third inner layer, an intermediate layer, a third outer layer, a second outer layer and a first outer layer. The second inner layer, the third inner layer, the intermediate layer, the third outer layer, the second outer layer, and the first outer layer are arranged outside the first inner layer in sequence. The first inner layer is an inner liner. The first outer layer is an outer protective layer. The second inner layer and the second outer layer are toroidal winding layers. The intermediate layer can be a resin mortar layer formed by the composition of resin and silica sand or can be a glass reinforced plastic layer. The large caliber fixed-length winding glass reinforced plastic pipeline has the advantages of being high in strength, long in service life, anti-aging and environmental.

Description

The fiber reinforced plastic pipe that a kind of heavy caliber fixed length is twined

Technical field

The utility model relates to the water supply and sewerage pipeline technical field, relates in particular to the fiber reinforced plastic pipe that a kind of heavy caliber fixed length is twined.

Background technique

Application along with heavy-caliber fiber reinforced plastic pipe, its high-strength light, corrosion-resistant, the characteristics such as inner wall smooth are approved, but at the higher 20bar of pipeline pressure, the above field of the larger 1000mm of diameter has run into the difficult problem of general flexible cushion rubber bell and spigot joint or sleeve interface, main cause is that the stretch modulus of frp pipe is lower, under the state of same strain level, absolute value for its overall dimensional change amount of small-bore pipeline is less, and when the bore increase, the dimensional changes amount was large when pressure was high, the sealing load that initial precompression forms reduces very soon, and skids off from the gap of joint socket.

The model utility content

For the deficiencies in the prior art, the purpose of this utility model is to provide the fiber reinforced plastic pipe of the heavy caliber fixed length winding that a kind of intensity is high, forming method is simple, cost is low.

To achieve these goals; the technological scheme that the utility model adopts is: the fiber reinforced plastic pipe that a kind of heavy caliber fixed length is twined; it comprises the first internal layer; the second internal layer; the 3rd internal layer; the mesosphere; the 3rd skin; the second skin; the first skin; it is characterized in that described the first internal layer is provided with the second internal layer outward successively; the 3rd internal layer; the mesosphere; the 3rd skin; the second skin; the first skin; described the first internal layer is inside liner; the first skin is external protection; the second internal layer and the second skin are circumferential winding layer, and described mesosphere can be resin mortar layer or the frp layer of resin and quartz sand mixture.

Beneficial features of the present utility model is: 1, the axial strength of pipe structure has the axial direction fibre layer of hoop canoe processing to provide, axial strength provide efficient high (intensity of fiber direction is high), forming method is simple, adopt the hoop canoe, avoided problem such as the two-end thickness of spiral cross winding to pile up, slided yarn and provide axial strength inefficient shortcoming; 2, the rigidity efficient of pipe structure is high, and high strength and modulus circumferential winding layer internal layer 2 and outer 2 is arranged in structural outside layers, and rigidity efficient is high; 3, body is elongated cylindrical body, and interface is the sleeve interface, has avoided the strength weak of traditional piping material bellmouth reducer and stress to concentrate and exists local eddy currents to increase the shortcoming of water resistance in hydraulic characteristic, and can process the pipeline of very short length; 4, body is elongated cylindrical body, and Mould Machining is simple; 5, interface is the sleeve interface, and seal ring is put into sleeve, can adopt the high hardness seal ring, the sealing of realization high pressure, traditional piping material is that cushion rubber is enclosed within on the socket of pipe end, needs to put into the socket groove after the cushion rubber tensile elongation, cause and to adopt the high hardness cushion rubber, be difficult to realize the high pressure sealing; 6, adopt present domestic a large amount of fixed length winding methods of popularizing to produce, equipment manufacturing cost is lower and produce flexible.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples;

Fig. 1 is structural representation of the present utility model;

Among the figure, the 1, first internal layer, the 2, second internal layer, the 3, the 3rd internal layer, 4, the mesosphere, the 5, the 3rd skin, the 6, second skin, the 7, first skin.

Embodiment

As shown in the figure; the fiber reinforced plastic pipe that a kind of heavy caliber fixed length is twined; comprise the first internal layer 1, the second internal layer 2, the 3rd internal layer 3, mesosphere 4, the 3rd skin 5, the second skin 6, the first skin 7; the first internal layer 1 outer the second internal layer 2, the 3rd internal layer 3, mesosphere 4, the 3rd skin 5, the second skin 6, the first skin 7 of being provided with successively; described the first internal layer 1 is inside liner; first outer 2 is external protection; the second internal layer 2 and second outer 6 is circumferential winding layer, resin mortar layer or frp layer that described mesosphere 4 can be resin and quartz sand mixture.The axial strength of the utility model pipe structure has the axial direction fibre layer of hoop canoe processing to provide, axial strength provide efficient high, forming method is simple, adopt the hoop canoe, avoided problem such as the two-end thickness of spiral cross winding to pile up, slide yarn and provide axial strength inefficient shortcoming, adopt present domestic a large amount of fixed length winding methods productions of popularizing, equipment manufacturing cost is lower and produce flexible.

Claims

1. the heavy caliber fixed length fiber reinforced plastic pipe of twining, it comprises the first internal layer, the second internal layer, the 3rd internal layer, mesosphere, the 3rd skin, the second skin, the first skin, it is characterized in that described the first internal layer is provided with the second internal layer, the 3rd internal layer, mesosphere, the 3rd skin, the second skin, the first skin outward successively.

2. the fiber reinforced plastic pipe of heavy caliber fixed length winding according to claim 1 is characterized in that described the first internal layer is inside liner, and the first skin is external protection, and the second internal layer and the second skin are circumferential winding layer.