Marine Explosion Proof Axial Flow Fan

Marine Explosion Proof Axial Flow Fan

Casing	Impeller	Motor

Introduction:

A marine explosion proof axial flow fan is a type of fan used in marine and offshore environments that require explosion-proof equipment to prevent the ignition of hazardous gases, vapors, or dust.

An axial flow fan is a type of fan that creates airflow by rotating a set of blades around a central shaft. These fans are designed to move large volumes of air at low pressures and are commonly used for ventilation and cooling applications.

The explosion-proof design of the fan ensures that it will not ignite any flammable or explosive materials that may be present in the surrounding environment. This is achieved through the use of materials and construction methods that prevent sparks or arcs from occurring, such as using non-sparking materials and ensuring all electrical connections are properly sealed.

Marine explosion-proof axial flow fans are used in a variety of applications, such as in cargo holds, engine rooms, and other areas of ships and offshore oil rigs. They are also used in other hazardous environments, such as chemical plants and refineries. These fans are an important safety feature in these environments, as they help to prevent the buildup of explosive gases or vapors that could lead to catastrophic accidents.

Structure:

There are five structural types: type Ⅰ(deck type), type Ⅱ(tube type), type Ⅲ(separate cabins type), type Ⅳ(olive type) and type Ⅴ(wind upward type). The construction is non-sparking.

TypeⅠexplosion-proof fan has an explosion-proof motor installed on the top of the frame and a wire mesh guard with 2 inch, made of stainless steel, surrounding the frame. The fan is vertically fixed on the deck. It can be delivered for air supply or air extraction.
Type Ⅱ explosion-proof fan has no hood, built-in type anti-corrosive motor id mounted on the casting by vane. It can be installed vertically or horizontally, and also be installed on the deck. It can be delivered for air supply or air extraction.
According to the customer’s special requirement, the fan can be made into Ⅲ, Ⅳ,Ⅴ type structure, the fan and the motor with a driving device, a stuffing box and flexible coupling. It is used primarily for exhaust of dangerous compartment, the ventilator fan can also be type Ⅳ and Ⅴ, in which the air not pass the motor thus ensuring the vessel safety.
The explosion-proof ventilator is manufactured in the structure under which the impeller turns clockwise view from the motor side impeller can be reversible.

Configuration selection:

Part name	Texture of material	Advantages / disadvantages
Casing	Carbon steel	After heat treatment, higher hardness and better wear resistance can be obtained. The hardness in the annealed state is very moderate, and it also has good machinability. Raw materials are very common, easy to obtain, and the production cost is relatively low
Impeller	Aluminium alloy	Low density, high strength, good conductivity, good corrosion resistance and easy processing
Electric machinery		Finished marine motor with low noise, low vibration and high protection grade
Junction box	Q235A	It has good plasticity and welding performance, good forming ability, and has a certain strength. It is suitable for engineering structures. It has good practical performance, relatively cheap price and high cost performance
Stationary blade support foot	Q235A	Ordinary carbon structural steel has simple production process, good process performance (such as welding performance, pressure processing performance, etc.), necessary toughness, good plasticity, low price and easy to supply in large quantities. It is usually used after hot rolling
Casing flange	Q235A	Good toughness and plasticity, certain elongation, good welding performance and hot workability

Drawing:

The specific differences are as follows:

Our inventory:

IACS Certificate: DNVGL, LR, KR, ABS, NK, BV, CE, CCS