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Explosion-proof axial flow fan uses low pressure for high flow

Release Time：2021-07-20

Explosion-proof axial flow fan is a special type of fan. It is professionally used in flammable and explosive places. The most commonly used industries are petroleum, chemical industry, etc. Its main thing is to isolate the fan from starting and running. Sparks generated by motor terminals, stator and rotor or other components do not contact with flammable and explosive gases outside, causing safety accidents.
The ordinary axial flow fan itself is welded by a pile of iron pieces and cannot explode, while the explosion-proof axial flow fan is mainly the source power motor that needs explosion-proof. The rotating parts of the impeller and volute prevent sparks caused by scratches.
The fan fire protection flower structure is divided into three axial flow fan levels:.
A, the gas flow parts are non-ferrous parts, usually aluminum.
B. The fan impeller and the shaft guard ring through the casing must be made of non-ferrous materials.
C. The structure of the fan should ensure that the movement of the impeller or shaft will not cause the two iron parts to collide, friction or collision, using a copper ring or an aluminum ring.
There are 4 main types of fans to consider when deciding how to move air over, around, or through a piece of equipment, and in ventilation or heat exchange applications, axial fans are commonly seen, providing high volumetric flow at low pressures and covering high surface areas.
The forward curved centrifugal axial flow fan used in the scroll housing has steep pressure characteristics to produce higher pressure at a lower flow rate. These will be seen in particle or odor filtration applications or fan coils, where High volume flow is required in the restricted space envelope, backward curved fan can provide no overload fan performance characteristics, and can provide medium volume flow at medium pressure, typical applications include air handling and air conditioning units where low noise is key, tangential or cross-flow fans produce a wide laminar flow at high speed and are commonly experienced rather than seen at the store door or behind the exit of a household fan electric stove.
In order to achieve this goal, the axial fan chooses the blade axial fan blades containing the power requirements components to be installed in the standardized telecommunications rack. The components with power density and available space introduce overheating risks and service losses. In this case, what is needed is a compact fan that can provide high flow rates while overcoming the flow resistance generated by the close-packed environment, as mentioned earlier, axial fans provide high flow at low pressure, while backward curved centrifugal fans provide medium volumetric flow at higher pressure. In the case of a platform, the space available for installing the fan means that the axial fan does not generate pressure, and the backward curved fan does not generate flow.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong, the hometown of FRP in China. The company has Grade II qualification for fire protection facilities engineering, Grade II qualification for construction mechanical and electrical installation engineering, Grade II qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, and an axial fan invention patent, A fan utility model patent, environmental assessment, safety assessment, three simultaneous and other procedures are complete.