A kind of different-diameter bamboo winding pipe structure and preparation method thereof

A winding tube and different-diameter technology, applied in the structure and preparation of different-diameter bamboo winding tubes, can solve the problems of easy cracking at the joint, low processing efficiency, and easy water leakage, etc., and achieve high tube-making efficiency, low strength, and not easy to break Effect

Active Publication Date: 2020-09-22
中林鑫宙竹缠绕发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a structure of winding bamboo pipes with different diameters and its preparation method. The winding bamboo pipes prepared by the present invention have high strength, convenient processing and high preparation efficiency, which solves the problem of existing bamboo winding pipes. The joints of wound pipe fittings are easy to break, low in strength, easy to leak, and low in processing efficiency.

Method used

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  • A kind of different-diameter bamboo winding pipe structure and preparation method thereof
  • A kind of different-diameter bamboo winding pipe structure and preparation method thereof
  • A kind of different-diameter bamboo winding pipe structure and preparation method thereof

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preparation example Construction

[0051] The invention also provides a method for preparing a novel bamboo winding pipe, which includes the following steps:

[0052] (1) First, fabric and adhesive are used to make an anti-corrosion and anti-seepage lining layer on the mold;

[0053] (2) Then, after preparing the inner lining layer, prepare the fiber reinforced layer: according to the formula Calculate the thickness t of the fiber reinforced layer; according to the nominal diameter of the large diameter end, determine the distance L from both ends of the fiber reinforced layer to the large diameter end and the small diameter end; according to the thickness t and length L, determine the thickness of the fiber reinforced layer away from The decreasing amount s in the direction of the tapered transition surface; according to the thickness t, length L and decreasing amount s, the high-strength fiber is impregnated with resin and then wound on the inner lining layer to obtain a fiber reinforced layer;

[0054] (3) Finally...

Embodiment 1

[0059] In this embodiment, the nominal diameter is DN300-DN500mm, the nominal pressure is 1.0MPa, and the stiffness grade is 10000N / m. 2 As an example, the method for preparing the reducing bamboo winding pipe structure of the present invention is specifically described. The specific steps are as follows:

[0060] 1) Bamboo fiber pretreatment:

[0061] Cut the fresh bamboo into bamboo slices, cut the bamboo slices to 1.5m long, 1mm thick, and 5mm wide after removing the blue and yellow. The bamboo sticks are dried, and then 10 bamboo sticks are arranged in parallel into a row. , The back of the entire row of bamboo strips is lined with a grid cloth and stitched with a sewing machine to form bamboo curtains. The head and tail of each row of bamboo curtains are butted and stitched with a sewing machine to form an uninterrupted strip of several meters or even more than tens of meters. The bamboo curtain belt is rolled up to obtain the bamboo roll for use.

[0062] 2) Preparation of inn...

Embodiment 2

[0071] In this embodiment, the nominal diameter is DN1800mm, the nominal pressure is 1.0MPa, and the stiffness grade is 10000N / m. 2 Take the bamboo-wound composite pipe socket as an example to illustrate the preparation method of the reduced-diameter bamboo-wound pipe structure of the present invention. The specific steps are as follows:

[0072] 1) Bamboo fiber pretreatment:

[0073] Cut the fresh bamboo into bamboo slices, cut the bamboo slices into 2m long, 1.2mm thick, and 4mm wide bamboo strips after removing the blue and yellow. The bamboo strips are dried, and then 12 bamboo strips are arranged in parallel and neatly arranged in a row , The back of the entire row of bamboo strips is lined with a grid cloth and stitched with a sewing machine to form bamboo curtains. The head and tail of each row of bamboo curtains are butted and stitched with a sewing machine to form an uninterrupted strip of several meters or even more than tens of meters. The bamboo curtain belt is rolled u...

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Abstract

The invention discloses a reducing type bamboo intertwined pipe structure and a preparation method thereof. The reducing type bamboo intertwined pipe structure axially comprises a large-caliber opening, a conical transition surface and a small-caliber end which are integrally formed and are connected in sequence; in the radial direction, the reducing type bamboo intertwined pipe structure sequentially comprises an inside liner, a structural layer and an outer protective layer from inside to outside, wherein the a fiber reinforcing layer is also arranged between the inside liner and the structural layer of the conical transition surface; the fiber reinforcing layer is formed by intertwining high-strength fiber infiltrated resin; and the two ends of the fiber reinforcing layer separately extend to the large-caliber end and the small-caliber end. The reducing type bamboo intertwined pipe structure prepared by the method disclosed by the invention is high in structural strength, convenientto process and high in preparation efficiency, and solves the problems that a spliced position of an existing bamboo intertwined pipe part is easy to fracture, the strength is low, water is easily leaked and the processing efficiency is low.

Description

Technical field [0001] The invention belongs to the field of bamboo winding pipe structure preparation, and more specifically, relates to a reducing bamboo winding pipe structure and a preparation method thereof. Background technique [0002] Bamboo winding composite pipe is a new type of pressure pipe made of bamboo material, thermosetting resin as adhesive, and winding process. Compared with traditional pipes, it has energy saving and environmental protection, light weight and high strength, good insulation performance, earthquake resistance and sedimentation resistance. Outstanding advantages such as strong and low cost. Bamboo winding pipe fittings are used to connect bamboo winding composite pipes, including reducers, elbows, tees, etc. CN201521095884.X discloses a pipe fitting for a bamboo-wound composite pipe. The pipe fitting is spliced ​​by two or more pipe fittings, each pipe fitting is wound by bamboo strips and resin, and two pipe fittings The splicing part is fixed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/14F16L57/02F16L58/02
CPCF16L9/14F16L57/02F16L58/02
Inventor 叶柃张淑娴孙元平李以静
Owner 中林鑫宙竹缠绕发展有限公司
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