Also known as solar greenhouse greenhouse, is a unique type of greenhouse in northern China, even in the coldest season, you can also rely on the gathering temperature of the sun during the day, at night through the heat preservation of cotton blankets to maintain a certain temperature level in the greenhouse, such as the northeast region, in the external 20 ℃ weather, you can still achieve the warmth effect of 8-10 ℃. The structure of the solar greenhouse is obviously different from that of the cold greenhouse and the greenhouse. The working area in the greenhouse usually sinks 0.5-1m, the north thermal insulation rear wall, the sunny steel frame covered with plastic sheet and cotton felt, and the single side is between 1.5 mu and 3 mu. The cost of the greenhouse is high, with an average cost of more than 50,000 yuan per mu.
1 wrapping the first layer of thermal insulation material aluminum silicate fiber blanket on the working steel pipe 2 adding calcium silicate (tile shell) 3 to the aluminum silicate fiber blanket pouring polyurethane foaming 4 after removing the mold to make the glass fiber reinforced plastic insulation pipe polyurethane product
It is necessary to determine the use temperature of fire-resistant and thermal insulation fiber according to the specific fuel used in the kiln. If it is used in the furnace gas with reducibility, it is necessary to use aluminum silicate needle blanket with high purity synthetic material as industrial kiln wall lining material and apply anticorrosive coating, thus it can be seen that at different working temperatures, even the same aluminum silicate needle blanket products.
The first is to scientifically implement the work of anti-freezing and heat preservation in waterworks and deep wells of water sources. To strengthen the inspection and thermal insulation protection of the water conveyance and water supply pipeline, the Unicom water pipeline in the ab area of the third waterworks has been discharged and an insulation layer has been added to prevent the pipeline from freezing and cracking. Heat preservation measures such as inspection and pumping, anti-freezing film and blanket blanket are taken for inspection wells of water pipeline network. It ensures the normal operation of the pipeline. The electric heating was opened in 41 deep wells in the first, second and third water sources, ensuring the normal operation of various water supply equipment and facilities.
Valve insulation cover features good thermal insulation effect, thermal insulation layer using heat-resistant fiber insulation blanket, surface hairiness is rich, similar to down, heat-resistant ℃. Easy to disassemble, easy to install, easy to clean pipeline equipment, easy to repair and maintain. It can be used repeatedly for a long service life. High strength, toughness and easy to bend bandage. Can be tailored according to the need for heat preservation parts, processing non-standard products. The product has strong adaptability and is suitable for piping equipment with different temperature ranges and different shapes. Environmentally friendly, pollution-free, free of asbestos and any other harmful substances, harmless to people and completely. The appearance of the product is beautiful and neat and the surface can be scrubbed. Work hot, prevent personnel.