一、 Boiler quartz glass sheet
Quartz glass sheets for boilers are high-performance transparent materials specially designed for boiler observation windows, which can maintain a clear view under extreme temperature conditions and enable operators to monitor the internal combustion status of the boiler in real time. This special glass sheet, with the excellent performance of quartz material, has become an irreplaceable observation window solution in high temperature and high pressure environments.
二、 Product features and advantages
1. Excellent temperature resistance performance
Long term working temperature can reach 1100 ℃ -1200 ℃
Short term temperature resistance up to 1450 ℃
Extremely low coefficient of thermal expansion (about 5.5 × 10 ⁻⁷/℃), excellent thermal shock resistance
2. Excellent mechanical strength
High compressive strength (>1100MPa)
High surface hardness (Mohs hardness level 7)
Good high pressure resistance, suitable for various pressure boilers
3. Excellent optical properties
High transmittance (visible light region>92%)
Not easily atomized at high temperatures, maintaining clear visibility
Good radiation resistance, no yellowing after long-term use
4. Strong chemical stability
Acid and alkali corrosion resistance (excluding hydrofluoric acid)
Anti smoke erosion
No harmful substances produced, safe and environmentally friendly
三、 Key installation points for boiler quartz glass sheets
Sealing design: Adopting a metal quartz composite sealing structure to ensure airtightness at high temperatures
Buffer treatment: Special gaskets are required during installation to alleviate thermal stress
Cooling system: Some high-temperature boilers require air or water cooling devices
Regular maintenance: It is recommended to check the sealing performance and glass surface condition every 6 months
四、 Application scenarios
Power plant boiler combustion observation window
Industrial boiler flame monitoring port
Garbage incinerator observation port
Chemical reaction kettle sight glass
Metallurgical furnace monitoring window
五、 Common specifications in the market
Standard thickness: 3mm, 5mm, 8mm, 10mm
Common shapes: circular (diameter 50-300mm), square (50 × 50mm to 400 × 400mm)
Special requirement: Customization of irregular shapes is available
