Atmospheric Fixed / Floating Roof Storage Tank
manufacturer, supplier, exporter in Mumbai, India
Table of Contents
Description of Atmospheric Fixed / Floating Roof Storage Tank
An Atmospheric Fixed/Floating Roof Storage Tank is a type of container used for storing liquids, typically oil, petroleum products, or chemicals, at atmospheric pressure (i.e., the pressure of the surrounding atmosphere). These tanks are commonly found in industries such as oil and gas, petrochemical, and chemical manufacturing.
Fixed Roof Storage Tank: This type of tank has a permanent, non-movable roof that is attached to the top of the tank shell. It is designed to keep the stored liquid contained and protected from external elements like rain, dust, and sunlight. Fixed roof tanks are suitable for storing liquids that do not produce significant vapor pressure or require temperature control. However, they can be problematic when the stored liquid experiences significant temperature changes, as it can lead to pressure build-up inside the tank.
Floating Roof Storage Tank: In contrast, a floating roof tank has a roof that floats on top of the stored liquid’s surface. The roof is designed to move up and down with changes in the liquid level, minimizing the space between the liquid surface and the roof. This design helps reduce the vapor space in the tank, which can be important when storing volatile or hazardous substances. Floating roof tanks are commonly used for storing products like crude oil and gasoline. They help prevent the formation of explosive vapor-air mixtures inside the tank.
The choice between a fixed roof and a floating roof tank depends on various factors, including the type of liquid being stored, safety requirements, environmental considerations, and cost-effectiveness. Floating roof tanks are more complex and expensive to construct but offer advantages in terms of vapor control and minimizing emissions.
Atmospheric Fixed / Floating Roof Storage Tank features
Atmospheric Fixed and Floating Roof Storage Tanks have distinct features and characteristics that make them suitable for different storage applications:
Fixed Roof Storage Tank Features:
- Simple Design: Fixed roof tanks have a straightforward design with a permanent, non-movable roof. This simplicity often translates into lower construction and maintenance costs.
- Protection: The fixed roof provides reliable protection to the stored liquid from external factors such as rain, dust, and debris. This can be essential for sensitive products.
- Suitable for Stable Liquids: Fixed roof tanks are commonly used for storing stable liquids that do not generate significant vapor pressure and do not require temperature control.
- Low Emissions: They tend to have lower emissions compared to floating roof tanks since there is less concern about vapor space management.
Floating Roof Storage Tank Features:
- Vapor Control: The floating roof moves up and down with changes in liquid level, minimizing the vapor space inside the tank. This feature helps control emissions of volatile organic compounds (VOCs) and reduces the risk of explosive vapor-air mixtures forming within the tank.
- Prevention of Product Loss: Floating roofs are effective at minimizing the evaporation and product loss that can occur with volatile liquids, such as crude oil and gasoline.
- Temperature Sensitivity: Floating roof tanks are suitable for storing products that are sensitive to temperature changes because the roof’s movement accommodates thermal expansion and contraction of the liquid.
- Regulatory Compliance: In many cases, regulations or industry standards may require the use of floating roof tanks to meet emissions control and environmental protection standards.
- Maintenance Challenges: Floating roof tanks are more complex to construct and maintain due to the moving roof components, such as seals and drain systems. This complexity can lead to higher maintenance costs.
- Cost Considerations: While floating roof tanks offer emission control benefits, they are generally more expensive to build and maintain compared to fixed roof tanks.
It’s important to note that the choice between a fixed roof and a floating roof storage tank depends on the specific requirements of the stored liquid, safety regulations, environmental concerns, and economic factors.
Atmospheric Fixed / Floating Roof Storage Tank Applications: –
Atmospheric Fixed and Floating Roof Storage Tanks are utilized in various industries and applications, each tailored to their specific features and advantages:
Fixed Roof Storage Tank Applications:
- Petrochemical Industry: Fixed roof tanks are often used to store stable petrochemical products such as diesel fuel, jet fuel, and lubricating oils.
- Chemical Manufacturing: Many non-volatile chemicals and solvents can be safely stored in fixed roof tanks, protecting them from atmospheric exposure.
- Water Storage: Fixed roof tanks are employed in municipal water treatment plants and industries for the storage of potable water, process water, or wastewater.
- Agriculture: These tanks can be used in agriculture for the storage of water, fertilizers, and pesticides.
- Bulk Storage: Fixed roof tanks are suitable for bulk storage of various non-volatile bulk materials like grains, grains, and other dry goods.
Floating Roof Storage Tank Applications:
- Crude Oil Storage: Floating roof tanks are commonly used in the oil and gas industry for storing crude oil. The floating roof minimizes vapor space, reducing oil vapor emissions and preventing the formation of explosive gas-air mixtures.
- Petroleum Products: Refined products like gasoline, diesel, and kerosene are often stored in floating roof tanks to minimize losses from evaporation and maintain product quality.
- Chemical Storage: Volatile chemicals that require vapor control and emissions reduction, such as volatile organic compounds (VOCs), are stored in floating roof tanks.
- Liquid Chemicals: Floating roof tanks can be used for storing temperature-sensitive liquids like liquid natural gas (LNG) and other cryogenic fluids.
- Mining: Floating roof tanks are employed in the mining industry for the storage of process liquids, chemicals, and even tailings in some cases.
- Wastewater Treatment: In wastewater treatment plants, floating roof tanks can store various liquids generated during the treatment process, reducing odours and emissions.
The choice between fixed and floating roof tanks depends on factors such as the nature of the stored substance, safety regulations, environmental considerations, and cost-effectiveness.
