It is a comprehensive problem to select a suitable way to reduce the temperature of steel structure workshop. It must be treated symptomatically. The first thing to do is to find the first condition that endangers the temperature of steel structure workshop. The main purpose is to solve other relative primary and secondary factors, so as to achieve excellent indoor air and maximum cost-effective. 

In order to reduce the temperature of steel structure workshop, we should consider the following problems:

1.What are the thermal insulation characteristics of steel structure workshop? 

2.Is the steel structure workshop equipped with cooling system? 

3.What is the natural ventilation characteristics of steel structure workshop? 

Natural ventilation temperature reduction of a steel structure workshop 

Because some equipment in the steel structure workshop cause heat and steam. If the heat flow and steam are not discharged immediately, they will accumulate in the industrial plant, which will cause the temperature rise of the steel structure workshop and endanger the natural environment of the steel structure workshop.The way to deal with this problem is to ensure the effective natural ventilation of industrial buildings and install appropriate exhaust system.Effective ventilation system installation will significantly improve the natural gas environment of steel structure workshop and greatly reduce the temperature of steel structure workshop.

Installation of forced smoke exhaust fan on flat roof

Driven centrifugal fan is a kind of ventilation and cooling equipment promoted by electric power engineering.Its exhaust system effect is very good, can be integrated into all natural environment of natural ventilation.

Natural ventilator without driving force is a kind of ventilation and cooling equipment which uses the basic principle of air convection to carry out natural ventilation. When the natural environment of indoor and outdoor gas is different, it will cause gas fluidity, and then remove the organic waste gas and heat flow in the room.Its advantage is that it does not need additional power engineering and is more environmentally friendly.However, due to the strong dependence on the natural environment, the forced exhaust system is not allowed.The key commodities are turbocharged natural ventilator, strip natural ventilator (natural ventilation of day-lighting board), natural ventilator of ridge, etc. 

Install flat roof natural ventilator without driving force.Natural ventilator without driving force is a kind of ventilation and cooling equipment which uses the basic principle of air convection to carry out natural ventilation. When the natural environment of indoor and outdoor gas is different, it will cause gas fluidity, and then remove the organic waste gas and heat flow in the room.Its advantage is that it does not need additional power engineering and is more environmentally friendly.However, due to the strong dependence on the natural environment, the forced exhaust system is not allowed.The key commodities are turbocharged natural ventilator, strip natural ventilator (natural ventilation of day-lighting board), natural ventilator of ridge, etc. 

Forced temperature reduction of No.2 steel structure workshop 

Forced temperature reduction refers to the installation of industrial air cooler on the flat roof of industrial plant. Industrial air cooler is an equipment that uses the basic principle of cooling water to cool air and transmit cold air to the room by strong smoke exhaust fan.It can keep the room temperature of steel structure workshop in the comfortable temperature of 26-30 ℃.Its electricity consumption is equal to 1 / 8 of the central air conditioning.The project cost is 1 / 2 of the central air conditioning, which is a good method of forced temperature reduction in industrial plants. 

Thermal insulation and temperature reduction of three steel structure workshop 

The thermal insulation of steel structure workshop can isolate most natural light radiation sources and transmit heat, and reduce global warming in the room.And then greatly reduce the temperature of industrial plant, improve the natural environment of steel structure workshop.Today, there are two common ways to choose from:  

The flat roof of steel structure workshop is covered with thermal insulation materials. Generally, the thermal insulation material applied on the flat roof is glass fiber cotton. The common thickness is 50 mm, 75 mm, 100 mm, and the relative density is 64 kg / m3 

Generally, the room temperature can be reduced by 5-8 ℃ after installation, and the whole process of construction is complicated. If the old industrial plant is to be renovated with thermal insulation, the original flat roof must be dismantled, the steel wire mesh must be pulled up, the glass fiber cotton is paved on the steel wire mesh, the original roof is covered, and then the waterproof solution is made. 

High efficiency heat insulation reflective surface architectural coating is sprayed on the roof.This kind of commodity has excellent thermal insulation properties, and can be coated on various surface layers such as metal materials, concrete, grey walls, wood structure building surface, asbestos tile, plastic, FRP anti-corrosion, vulcanized rubber, etc.The coating is 0.25 mm thick, and its actual effect is equal to the effect of 251080 x-375px glass fiber cotton. It can reflect 99.5% infrared induction and 92.5% visible light. The maximum actual effect of sound insulation and noise reduction is 68%, and the average actual effect of sound and noise reduction is more than 50%.Fire safety class A, completely fire-resistant.Non toxic, safety, high efficiency and durability, the service life is more than 15 years (detailed explanation can refer to the construction materials file).If this method is used, the engineering construction is convenient, the original flat roof is not damaged, and the embrittlement of the flat roof can be prevented.After the construction and before the construction, the temperature difference between the surface layer of the slab is 20 ℃, and the temperature difference in the room is 8-10 ℃. The energy consumption of the steel structure workshop can be reduced by 30-70%.