Navy Explosion Proof Centrifugal Fan
1. General
Navy explosion-proof centrifugal fans are specialized equipment used on naval vessels, submarines, and other military ships to provide ventilation and air conditioning in hazardous environments where the risk of explosion is high. These fans must meet strict military specifications and regulations, including those set by the Navy, to ensure they are safe, reliable, and durable.
2. Configuration Options:
Name of Parts |
Material |
Advantages/Disadvantages |
Shell |
Carbon Steel |
Higher hardness and better wear resistance can be obtained after heat treatment. The hardness in the annealed state is very moderate, and it also has good machinability. Raw materials are very common, simple and easy to obtain, and the production cost is relatively low. |
Impeller |
Aluminium Alloy |
Low density, high strength, good electrical and thermal conductivity, good corrosion resistance, easy processing |
Motor |
|
Finished marine motor with low noise, low vibration and high protection level |
3. Specific Difference Between Us and Other Suppliers
Comparison |
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Product Picture of other low quality supplier
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Product Picture of our factory
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Other low quality supplier |
Consequence |
Our Factory
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Result |
The thickness of the chassis steel plate is thin. |
Easy to deform and directly affect the service life |
Use steel plates with national standard thickness |
The thickness of the steel plate is standard, and the product can be used for a longer time. |
inferior materials or inadequate protection
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centrifugal fans may be susceptible to corrosion
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Choose good quality material |
Not easy to corrosion, increase safety performance |
The selection of air pressure and air volume that cannot meet the requirements |
The working efficiency of the fan is low. In severe cases, the centrifugal fan may even be unable to meet the requirements of use. |
Select as required |
Only when the nominal performance is met, will the actual system and the required pumping air volume be achieved. |
Choose a common motor for use as a marine motor |
The insulation level does not meet the requirements |
Strictly select marine motors |
The shell has a higher protection level, has a certain explosion-proof property, is more resistant to moisture and corrosion, and has a longer service life |
Explosion-proof grade selection not made as required |
The motor does not meet the explosion-proof requirements and is prone to danger |
Explosion-proof grade selection in strict accordance with application requirements, etc. |
Product use is safer and longer |
5.Failure Analysis and Maintenance:
Fault Characteristics
main reason
Method of exclusion
High pressure, low flow
Reversed handedness or change in gas density
Change handedness or reduce gas density
Impeller inlet clearance or blade wear
Adjust the clearance or overhaul the impeller
Air duct blocked
Eliminate blockages or repair lines
Low pressure and high flow
change in gas density
increase gas density
Broken air duct
Repair the pipeline