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Novel-structured glass fiber reinforced plastic chimney

A glass fiber reinforced plastic chimney and structural sub-layer technology, applied in the field of chimneys, can solve the problem of no large thermal power plant FRP chimney engineering examples, etc., and achieve the effects of easy construction and quality control, good axial mechanical properties, and good hoop mechanical properties.

Active Publication Date: 2014-01-22
CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no engineering examples of FRP chimneys in large-scale thermal power plants in my country so far.

Method used

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  • Novel-structured glass fiber reinforced plastic chimney
  • Novel-structured glass fiber reinforced plastic chimney
  • Novel-structured glass fiber reinforced plastic chimney

Examples

Experimental program
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Effect test

preparation example Construction

[0071] The preparation method of FRP chimney of the present invention comprises the following steps:

[0072] (a) provide inner lining functional layer;

[0073] (b) laying (making) the intermediate structural layer outside the inner lining functional layer, and optionally

[0074] (c) laying (making) the outer protection layer outside the intermediate structure layer to obtain the glass fiber reinforced plastic chimney;

[0075] or include the following steps:

[0076] (a) providing an inner liner functional layer, an intermediate structural layer, and an optional outer protective layer;

[0077] (b) Assembling the inner lining functional layer, intermediate structural layer, and optional outer protective layer into the FRP chimney. The fiberglass chimney of the present invention has one or more of the following features:

[0078] (1) The hoop tensile strength is greater than 235MPa, the modulus is greater than 19.0GPa, the axial tensile strength is greater than 110MPa, a...

Embodiment 1

[0175] In the FRP chimney of this embodiment, the tube wall includes an inner lining functional layer, an intermediate structural layer and an outer protective layer, and the diameter is 7.2 meters.

[0176] Wherein, the lining functional layer includes a surface felt layer and a sprayed yarn layer from the inside to the outside, with a thickness of 1.2mm.

[0177] The middle structural layer is composed of 4 structural sub-layers 1 from inside to outside, 2 additional structural single layers and 1 outermost structural single layer. The structure is S1-S1-F2-F2-S1-S1-Y2, with a total thickness of 14.2mm .

[0178] The outer protective layer is a gel coat layer with a thickness of 0.25mm.

Embodiment 2

[0180] In the FRP chimney of this embodiment, the tube wall includes an inner lining functional layer, an intermediate structural layer and an outer protective layer, and the diameter is 7.2 meters.

[0181] Among them, the lining functional layer is composed of carbon fiber felt layer, surface felt layer and jet yarn layer from inside to outside, with a thickness of 1.5mm.

[0182] The structure of the middle structure layer from inside to outside is S1-S1-F1-S1-S2-F1-F2-S1-S4, and the total thickness of the middle structure layer is 16.5mm.

[0183] The outer protective layer is a gel coat layer with a thickness of 0.25mm.

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Abstract

The invention relates to a novel-structured glass fiber reinforced plastic chimney. A cylinder wall comprises a lining function layer, a middle structural layer and an optional external protection layer, and the lining function layer comprises a surface felt layer and a jet yarn layer from interior to exterior of the cylinder wall; the middle structural layer comprises a plurality of structural sub-layers, each structural sub-layer structurally comprises structurally comprising a single structural layer A, a single structural layer B, a single structural layer C and a single structural layer D; the single structural layer A is a jet yarn layer or a one-way cloth layer; the single structural layer B does not exist or is a hoop winding layer; the single structural layer C is a jet yarn layer or a one-way cloth layer; the single structural layer D is the hoop winding layer; when the single structural layer is the jet yarn layer, the single structural layer C is the one-way cloth layer; or when the single structural layer A is the one-way cloth layer, the single structural layer C is the jet yarn layer; the external protection layer comprises a gel-coated layer. The novel-structural glass fiber reinforced plastic chimney is novel in structure, good in axial mechanical performance and loop mechanical performance, convenient to construct, convenient for control quality, long in service life and applicable to large thermal power plants.

Description

technical field [0001] The invention relates to a chimney, in particular to a fiberglass chimney with a novel structure. Background technique [0002] Fiber-reinforced plastics are high-performance composite materials formed with fibers and their products as reinforcing materials, synthetic resin as matrix materials, and a specific molding process. Glass Fiber Reinforced Plastics (Glass Fiber Reinforced Plastics, also known as glass fiber reinforced plastics, the internationally recognized abbreviation symbol is GFRP or FRP) is a kind of fiber reinforced plastics, which is a functional type made of synthetic resin and glass fiber through a composite process. Composite materials have excellent designability, processability and repairability. [0003] In the past, domestic FRP was mostly used for storage tanks and pipelines. Its material design focused on meeting product functions and did not require high mechanical properties. What needed attention was the hoop performance o...

Claims

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Application Information

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IPC IPC(8): E04H12/28
Inventor 黎大胜徐勍陈飞干梦军杨薇林少波侯锐钢李冲
Owner CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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