Sewage tank exhaust gas - glass fiber reinforced plastic cover plate exhaust gas collection and cover
FRP arched cover name
Name: FRP glass cover plate
quantity:--------
Thickness: Body ≥ 6㎜, Rib ≥ 10㎜, Flange ≥ 12㎜
Cover color: beige
Design requirements: the structural layer of the cover plate is 5mm, and the material is structural resin 191#
Cover plate contact/anti-corrosion layer 1㎜, material is vinyl MFE-2
Design load: 150㎏/㎡;
Wind load---N/m2,;
Snow load---N/m2
Design period: ten years
Design and manufacturing standard specifications
1. Test method for resin content of glass fiber reinforced plastics: GB/T1449-89
(fiber laminate, glass fiber content ≥ 30%)
2. Test method for bending properties of glass fiber reinforced plastics: GB/T1449-83
(It can withstand the impact of 50 kg of software dropped from a height of 2 meters and a hard object of 1 kg dropped from a height of 1 meter)
3. Medium-alkali and alkali-free glass brazing fabric: JC/T278-94
4. Liquid unsaturated and polyester resins for glass fiber reinforced plastics: GB/T8237-87
5. Plastic tensile test method: GB/T1040-92
6. Test method for combustion performance of plastics. Oxygen index method: GB/T2406-80
(Complies with American Society for Testing and Materials (ASTM) E-84 or equivalent (Class 1) fire protection specifications (flame spread rate less than 25)
7. Test method for Barcol hardness of fiber reinforced plastics: GB/T3854-83
8. Plastic density and relative density test method: GB/T1033-86
9. Code for fire protection design of petrochemical enterprises: GB50160-92 (1999 edition)
Technical Description
FRP cover
1. Reinforcement material: glass fiber;
2. Substrate material: the resin is high-quality chemical-resistant isophthalic acid resin;
3. Auxiliary materials: flame retardants, toughening agents, reinforcing agents, water-resistant agents, and anti-ultraviolet agents, etc.;
4. Production process: the mold is poured once;
5. Finished product composition: corrosion-resistant layer, weather-resistant layer;
6. Technical parameters: tensile strength ≮200 Pa impact strength ≮20 J/cm2
Bending strength≮150 Pa Molding density≮1800kg/m3
7. Physical properties: Barcol hardness ≮50 Roughness rate: 0.0084
Elongation at break: 0.8 % Wear resistance: ≥99.98%
Poisson's coefficient: 0.3 Wear allowance: ≮1.5mm
Oxygen index: ＞36 Temperature resistance: -50~110℃
8. Anti-organic substances: including methanol, ethanol, formaldehyde, acetone, chlorine, hydrogen sulfide, oil and gas, etc.;
9. Solidify to form an overall network skeleton structure;
10. Lightweight, high-strength, no deformation, stable volume, no cracks in performance;
11. It adopts a special structural form, and has a complete overall shape after installation. It does not need a bracket, and it can resist wind load, rain and snow load and withstand maintenance load, etc.;
12. Assembled production, easy and fast installation, no maintenance required;
13. The outer surface of the cover plate should have a uniform gel coat layer, the surface should be smooth, without cracks, and the color should be uniform;
14. For the resin content of the cover plate, the resin-rich layer should be above 65%, and the structural layer should be 45%~55%;
15. The curing degree of the composite material is not less than 80%;
The actual load capacity of the slab top (150 kg/m2), the deflection should be less than 1/150 of the span under the design load;
The scope of work
Job content (including but not limited to) as follows:
1. For the design of the cover plate, please refer to the attached drawing.
2. The cover plate and the cover plate are connected by a cover-edge flange or a cover-over-edge connection, and the gap is sealed with resin thin glue and glass silica gel to play a waterproof role.
3. The joints between the cover plate and the pipeline, and between the pipeline and the pipeline are opened on site and reinforced with resin glass fiber links, and the dilute cement is sealed to play a waterproof role.
4. M12 expansion bolts are used to connect the cover plate and the concrete base of the pool wall. Considering the vertical error of the ditch wall during construction, Party B can choose the following two options and be approved by Party A:
a) Set the full-length galvanized angle steel at the shelving place.
b) Customized according to field measured data.
5. The FRP cover plates of each pool are assembled on site and laid in blocks.
6. Drill holes in the flange or compound connection between the blocks, and use 304 stainless steel bolts above M10 to connect, and the distance between two adjacent bolts is 20cm.
7. On-site sealing and sealing between flanges or between multiple connections.
8. The color of the cover plate shall be determined by Party A before delivery.
9. According to the requirements of Party A, due to the large span of the cover plate, the practice of pre-embedding flat iron or angle steel at the plane of the cover plate is adopted to further strengthen the large-span cover plate.
10. The products and accessories provided by Party B shall meet the site environmental requirements.
Performance acceptance test
1. The purpose of the performance acceptance test is to check whether all the performance of the contract equipment meets the technical requirements.
2. If Party A proposes a performance test report, Party B shall provide it.
3. Time of performance test: generally within 6 months after 168 hours.
4. Standards and methods of performance acceptance test