Glass fiber reinforced plastic chimney with excellent mechanical properties

A fiberglass chimney and chimney technology, applied in the field of chimneys, can solve the problems of no large-scale thermal power plant FRP chimney engineering examples, etc., and achieve the effects of convenient construction and quality control, long service life, 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

But so far there are no engineering examples of FRP chi

Method used

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  • Glass fiber reinforced plastic chimney with excellent mechanical properties
  • Glass fiber reinforced plastic chimney with excellent mechanical properties
  • Glass fiber reinforced plastic chimney with excellent mechanical properties

Examples

Experimental program
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Effect test

preparation example Construction

[0062] The preparation method of FRP chimney of the present invention comprises the following steps:

[0063] (a) provide inner lining functional layer;

[0064] (b) laying (making) the intermediate structural layer outside the inner lining functional layer, and optionally

[0065] (c) laying (making) the outer protection layer outside the intermediate structure layer to obtain the glass fiber reinforced plastic chimney;

[0066] or include the following steps:

[0067] (a) providing an inner liner functional layer, an intermediate structural layer, and an optional outer protective layer;

[0068] (b) Assembling the inner lining functional layer, intermediate structural layer, and optional outer protective layer into the FRP chimney.

[0069] The fiberglass chimney of the present invention has one or more of the following features:

[0070] (1) The hoop tensile strength is greater than 235MPa, the modulus is greater than 19.0GPa, the axial tensile strength is greater than ...

Embodiment 1

[0165] 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.

[0166] 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.

[0167] 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 .

[0168] The outer protective layer is a gel coat layer with a thickness of 0.25mm.

Embodiment 2

[0170] 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.

[0171] 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.

[0172] 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.

[0173] 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 glass fiber reinforced plastic chimney with excellent mechanical properties. The chimney wall comprises an inner liner functional layer, a middle structural layer and an optional outer protection layer. The middle structural layer includes a plurality of structural sub layers; from the interior to exterior of the glass fiber reinforced plastic chimney, the structure of the structural sub layers includes a structural single layer A, a structural single layer B, a structural single layer C and a structural single layer D. The structural single layer A is a yarn injection layer or a unidirectional fabric layer; the structural single layer B is a non-directional or circumferential wrapping layer; the structural single layer C is a yarn injection layer or a unidirectional fabric layer; and the structural single layer D is a circumferential wrapping layer. When the structural single layer A is the yarn injection layer, the structural single layer C is the unidirectional fabric layer; when the structural single layer A is the unidirectional fabric layer, the structural single layer C is the yarn injection layer. The glass fiber reinforced plastic chimney has excellent axial mechanical properties and circumferential mechanical properties, construction and quality control are facilitated, service life is long, and the glass fiber reinforced plastic chimney is adaptable to large-scale power plants.

Description

technical field [0001] The invention relates to a chimney, in particular to a glass fiber reinforced plastic chimney with excellent mechanical properties. 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 at...

Claims

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Application Information

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IPC IPC(8): E04H12/28
Inventor 侯锐钢黎大胜徐勍陈飞干梦军杨薇诸白蒙刘佳楠
Owner CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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