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Fiberglass bend/horizontal segment cylindrical wall structure and chimney with same

A tube wall structure and horizontal section technology, applied in the field of chimneys, can solve the problems of no large-scale thermal power plant FRP chimneys, complicated elbow/horizontal sections, large changes in angles and speeds, etc., to facilitate construction and quality control, Good hoop mechanical properties and long service life

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

[0005] When the flue gas enters the chimney from the horizontal pipe, the angle and speed change greatly, and turbulent flow occurs. The air flow and dusty acid droplets will strongly scour the inside of the chimney. Therefore, in order to make the glass fiber reinforced plastic chimney suitable for large thermal power plants, it should The elbow / horizontal section is reasonably designed, but the situation of the elbow / horizontal section is very complicated. There are both axial loads on the vertical section and hoop loads on the horizontal section. The design is very difficult. So far, there is no Engineering Example of FRP Chimney in Large Thermal Power Plant

Method used

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  • Fiberglass bend/horizontal segment cylindrical wall structure and chimney with same
  • Fiberglass bend/horizontal segment cylindrical wall structure and chimney with same
  • Fiberglass bend/horizontal segment cylindrical wall structure and chimney with same

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preparation example Construction

[0084] The preparation method of the tube wall structure of the FRP elbow / horizontal section of the present invention comprises the following steps:

[0085] (a) making the lining functional layer;

[0086] (b) laying (making) the intermediate structural layer outside the inner lining functional layer, and optionally

[0087] (c) laying (making) the outer protection layer outside the intermediate structure layer to obtain the tube wall structure at the position of the FRP elbow / horizontal section;

[0088] or include the following steps:

[0089] (a) providing an inner liner functional layer, an intermediate structural layer, and an optional outer protective layer;

[0090] (b) Assembling the inner lining functional layer, intermediate structural layer, and optional outer protective layer into the tube wall structure of the FRP elbow / horizontal section.

[0091] The tube wall structure of the FRP elbow / horizontal section of the present invention has one or more of the follo...

Embodiment 1

[0186] The FRP elbow / horizontal section of this embodiment includes an inner lining functional layer, an intermediate structural layer and an outer protective layer, with a diameter of 8.5 meters.

[0187] 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.

[0188]The middle structural layer is composed of 6 structural sub-layers 1 from inside to the outside, 2 additional structural single layers and 1 outermost structural single layer. The structure is S1-S1-S1-F3-F2-S1-S2-S1-Y1. The thickness is 25.2mm.

[0189] The outer protective layer is a gel coat layer with a thickness of 0.25mm.

Embodiment 2

[0191] The FRP chimney elbow / horizontal section of this embodiment includes an inner lining functional layer, an intermediate structural layer and an outer protective layer, with a diameter of 7.5 meters.

[0192] 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.

[0193] The structure of the middle structure layer from inside to outside is S1-S1-F1-S1-S1-F1-F2-S2-F1-F2-S1-S4, and the total thickness of the middle structure layer is 25.8mm.

[0194] 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 fiberglass bend / horizontal segment cylindrical wall structure and a chimney with the same. The fiberglass bend / horizontal segment cylindrical wall structure comprises a lining functional layer, a middle structural layer and an optional protective layer. The lining functional layer comprises a surface mat layer and a jet yarn layer. The middle structural layer comprises a plurality of structural sub-layers. Each structural sub-layer comprises a structural single layer A, a structural single layer B, a structural single layer C and a structural single layer D. The thickness t of the middle structural layer is not smaller than 15mm and not smaller than 50mm. The optional outer protective layer comprises a gel coat layer. The fiberglass bend / horizontal segment cylindrical wall structure has good axial mechanical property and circumferential mechanical property, construction and quality control are convenient, and the fiberglass bend / horizontal segment cylindrical wall structure is long in service life and applicable to large-sized thermal power plants.

Description

technical field [0001] The invention relates to a chimney, in particular to a glass steel elbow / horizontal section tube wall structure and a chimney with the 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. ...

Claims

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Application Information

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IPC IPC(8): E04H12/28
Inventor 黎大胜侯锐钢徐勍胡仕林陈飞干梦军杨薇朱志峰
Owner CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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