First, heat preservation and cooling
The insulation of the steel structure can isolate the sunlight radiation and conduction heat in most departments, reducing the formation of indoor greenhouse effect. Thus reduce the temperature of the plant and improve the environment of the steel structure plant. There are two commonly used methods: Add thermal insulation cotton on the roof of the steel structure plant. The insulation wool used on the roof is generally glass wool, the thickness is 50mm, 75mm, 100mm, and the density is 10kg/m. After installation, the indoor temperature can generally be reduced by 5-8 ° C, and the construction process is complicated. If the old factory building is reformed for thermal insulation, it is necessary to remove the original roof, draw the steel wire mesh, and lay glass wool on the steel wire mesh. The second is to spray thermal insulation reflective coating on the roof panel. This product has good thermal insulation function, steel structure can be painted on metal, concrete, gray wall, wood structure surface, asbestos tile, plastic, glass fiber reinforced plastic, rubber and other surfaces. The coating thickness is 0.25mm, which is equivalent to the effect of 10cm-15cm glass wool, which can reflect 99.5% infrared ray, 92.5% visible light, and the sound insulation effect is 68%, and the uniform sound insulation effect of steel structure workshop is more than 50%. Fire Class A, completely non-combustible. Durable, service life of more than 15 years. If this method is adopted, the construction is convenient, no damage to the original roof, and can prevent the aging of the roof. After construction and before construction, the surface temperature difference of the plate can reach 20 ° C, the indoor temperature difference can reach 8-10 ° C, and the energy consumption of the steel structure plant can be reduced by 30-70%.
Second, ventilation and cooling
Because some machines of steel structure produce heat and water vapor, if not discharged in time, it will accumulate in the plant, thereby increasing the temperature of the steel structure plant and affecting the environment of the steel structure plant. The way to solve these problems is to ensure fair ventilation of the plant and install proper ventilation systems. The installation of the fair exhaust system will significantly improve the air environment of the steel structure plant and greatly reduce the temperature of the steel structure plant.
(1), roof installation of non-power ventilator
An unpowered ventilator is a ventilation device that relies on the principle of air convection for ventilation. When the indoor and outdoor air environments are different, air activities will be generated, thereby eliminating indoor exhaust gas and hot air. It has the advantage that it does not require additional electricity and is more environmentally friendly. However, it is very dependent on the environment and cannot be forced to exhaust. The products mainly include turbine ventilator, strip ventilator (lighting with ventilation), roof ventilator, etc.
(2) Install the roof forced exhaust fan
A power fan is a type of ventilation device driven by electricity. Good exhaust effect, can adapt to any environment. The unpowered ventilator is a ventilation device that relies on the principle of air convection for ventilation. When the indoor and outdoor air environments are different, air activities will be generated, thereby eliminating indoor exhaust gas and hot air. It has the advantage that it does not require additional electricity and is more environmentally friendly. However, it is very dependent on the environment and cannot be forced to exhaust. The products mainly include turbine ventilator, strip ventilator (lighting with ventilation), roof ventilator and so on.
Three, forced cooling
Forced cooling refers to the installation of cooling fans on the roof of the plant. The cooling fan is a machine that uses the principle of water cooling to cool the air and transmits cold air to the room through the strong exhaust fan. It can keep the indoor temperature of the steel structure at a quiet temperature of 26-30℃. Its power consumption is equivalent to 1/8 of air conditioning. The cost is 1/2 of the air conditioning, which is a good way to force cooling of the plant.