Rooftop air conditioning units are widely used in various commercial and residential buildings due to their high energy efficiency and space saving advantages. However, when installing rooftop air conditioning units, noise control becomes an important issue that cannot be ignored. Read More

The box frame of the rooftop air-conditioning unit adopts a special-shaped steel skeleton structure. The box panel adopts a double-layer panel structure with an insulation layer in the middle. The inner panel is made of high-quality galvanized steel plate with a thickness of δ≥0.5mm, and the outer panel is made of cold-rolled steel plate with electrostatic powder spraying treatment. The thickness of the inner wall panel is 0.8mm, and the thickness of the outer panel is 1.0mm. The insulation layer is made of high-pressure polyurethane foam, and the insulation density must be ≥48.1kg/m3. The thickness of the insulation layer should ensure that there is no condensation dripping on the surface of the box when the unit is running. The thickness of the panel and the insulation layer should not be less than 50mm. The air leakage rate of the unit should be ≤1%, and the noise outside the unit should be ≤75.1dB (1 meter away from the air conditioner). The outer surface of the roof-mounted air-conditioning unit box should have no obvious scratches, rusts and indentations, the surface should be smooth, the coating should be uniform, the color should be consistent, and there should be no flow marks, bubbles or peeling. If the cabinet is shipped in bulk and assembled on site, the final installation effect should be completely consistent with the external and internal quality of the factory assembly. answer Read More

The lubricating oil system provides lubrication and cooling conditions for the moving parts of the air conditioning unit. Rooftop air conditioning units require lubricating oil to control energy conditioning devices or extraction air recovery devices. Therefore, whether the oil temperature, oil pressure difference and oil level height are suitable will have an important impact on the air conditioning unit. Read More

Due to the particularity of the coal mine operating environment, there are many potential safety hazards, among which dust explosion is one of the major threats. In order to effectively control and reduce the dust concentration in the coal mine operating environment, the application of explosion-proof dust collector is particularly important. This article will discuss in detail the application and importance of explosion-proof dust collectors in coal mine environments. Read More

As an efficient dust removal equipment, the sintered plate dust collector plays an important role in industrial production. However, improper operation of any equipment can create safety hazards. In order to ensure the safe and effective operation of the sintered plate dust collector, the following are a series of safe operation regulations: 1. Preparation before operation Before operating the sintered plate dust collector, the operator must receive professional training and be familiar with the structure, working principle and operating procedures of the equipment. Read More

In industrial production, explosion-proof dust collectors play a vital role, especially in flammable and explosive environments. This type of dust collector can not only effectively remove dust in the production environment and reduce the risk of explosions, but also ensure the smoothness and safety of the production process. However, to ensure the effectiveness and safety of an explosion-proof dust collector, the explosion-proof mark on it is particularly important. Read More