Work environments play a crucial role in the daily lives of millions of people worldwide. From the industrial sector to the modern office, ensuring a healthy and safe work environment is a priority for companies. One fundamental aspect of achieving this goal is controlling the air quality within these environments.

In industrial sectors, especially those involving chemical production, metal processing, or the pharmaceutical industry, air control becomes even more critical for the safety of workers. The presence of hazardous chemicals or fine dust requires advanced ventilation, filtration, and emission detection systems to prevent any exposure that could be harmful to workers' health. These measures are essential to prevent accidents, illnesses, and long-term health issues.

What features should a good industrial fan have?

A good industrial fan should first and foremost be made of high-quality materials, including strong, durable, and long-lasting welds and constructions. In addition, the motor should be powerful enough to generate the force required to rotate the blades at a certain speed. The higher the power, the longer the fan's performance will last.

What to look for when choosing the best fans for industrial warehouses?

Having discussed the characteristics of the materials that should make up an excellent industrial fan, let's delve into the topic in more detail. Let's take a closer look at the details to consider when choosing such equipment for industrial warehouses. The robustness and compositional compactness of these fans are the first aspects to look at during the engineering and assembly phase. It should endure over time, as highlighted in the above paragraph, which is why its construction must be of top quality. When you compromise on materials, you get a subpar product that tends to decline in terms of performance over the years. Another detail to focus on is the level and value of the bearings, as with all accessori: they are essential for the proper functioning of an industrial fan, especially in companies such as foundries or steel mills where round-the-clock work puts a significant strain on fans. If they are of poor quality, they can compromise the production process.

At Meridiana Aspiratori we know that the high reliability of our products stems from a continuous commitment to achieving high-quality standards. We are a company that has adopted procedures for a proven QUALITY POLICY. Rigorous checks are carried out throughout the design and production phase to ensure the suitability of the assembled components and the performance of the finished product. Our commitment is continuous improvement and efficiency of the product.

Our commitment is a continuous effort to improve the product and its efficiency.

When to suggest an alternative to centrifugal fans: axial fans

In this article we focus on the substantial differences between centrifugal and axial fans, identifying when is convenient to use the latter instead of the former.

An alternative to centrifugal fans: axial fans.

Centrifugal fans and axial fans differ in some important characteristics.

Centrifugal fans also allow the transport of very aggressive fluids with very high temperatures, which the axial fan does not allow to do.
Also, centrifugal fans are capable of delivering larger pressure drops.

On the other hand, with the axial fans is possible to obtain a greater flow rate at significantly lower purchase and installation costs than those of a centrifugal fan.

The axial fans are simpler to be installed than centrifugal fans because they have a smaller footprint.

Therefore, if the system transports non-aggressive fluids at low temperatures with low head losses, it is advisable to use some axial fans for fluid handling.

Meridiana Aspiratori offers to its customers a careful analysis of the cost-benefit ratio before suggesting what kind of fan can be inserted and/or replaced in a system.

Each parameter is carefully evaluated, including the size and resistance required for the transport of fluids.

Summarizing, any order requires a careful preliminary study, designed to avoid possible inconvenience and to guarantee best results and maximum satisfaction.

Our experience is a guarantee of seriousness and dedication for the customer.

Centrifugal fans are a pivotal component in various industrial and commercial applications such as ventilation, heating and cooling systems, and material handling. In the rapidly expanding domain of air-moving equipment, the quality and efficiency in which an air-flow system operates play a vital role in daily life. When it comes to centrifugal fans, the key component to maximize efficiency is by selecting suitable centrifugal fan accessories.This article will expand on the importance and impact of having the most relevant accessories equipped for your centrifugal fan systems.

 Types and functions of important centrifugal fan accessories

To ensure the system runs at optimum levels, safety, efficiency, and maintenance are the three primary aspects to focus on. Consequently, the centrifugal fan-related accessories are generally sorted into three categories. Let's dive into each category and outline the significance of the fundamental components

1. Add-on Components for System Safety

Safety is of utmost paramount regardless of the specific application a centrifugal fan is performing. Thus, the range of safety-related accessories are essential to enhance the overall security without affecting daily tasks revolving around the work environment. Here are the main safety-centric accessories.

Protections uards - Commonly used fan guards and inlet/outlet guards shield the fan's rotating components, protecting users and assets from accidental contact.

Guards - Commonly used fan guards and inlet/outlet guards shield the fan's rotating components, protecting users and assets from accidental contact. Vibration Isolators - Help in reducing the transmission of vibrations to adjoined surfaces or objects, which not only deplete overall noise levels but also maintain the integrity of fan components over time. Motor Support Bases - These accessories support the fan motor, ensuring its proper alignment and optimum output potential without any compatibility is interfered by erroneous mounting or movement

Motor Support Bases - These accessories support the fan motor, ensuring its proper alignment and optimum output potential without any compatibility is interfered by erroneous mounting or movement.

2. Controlling and Improving Efficiency

Numerous accessories are available to enhance and refine fan performance without compromising fan reliability or longevity. Such accessories depend primarily on the application type and customer requirements – yet, they are crucial parameters for maintaining overall system effectiveness. Some essential efficiency-centered enhancements to centrifugal fans include

Speed Controllers Fan's performance can be further fine-tuned, enabling the fan's and energy consumption rates to flexibly adapt as needed basis using speed controls or variable frequency drive (VFD), which is especially crucial in energy-intensive or constantly shifting industrial

DampersHelps to moderate the airflow rate and air pressure by enlarging or narrowing the fan outlet proportionally. They are beneficial for applications that have fluctuating demands, allowing frequent control of the air stream without disturbing the fan speed.

3. Necessary maintenance and spare components

Like all other specialized industrial equipment, the centrifugal fan apparatus need regular checks and preservation through general replacement of components to guarantee optimum service life over time. Such elements, like regular centrifugal fan maintenance, are mandated by health and safety requirements, enhancing general performance stability indefinitely. Some of the valuable components deemed necessary are: filter component and bearings

Filter component

Replacement fan filters ensure a continuous flow of clean air and also limit the germs, pollutants, and particles that lead to wear on internal parts.

 Bearing

Since centrifugal fans can operate continuously for a prolonged duration, the bearings get subject to wear and tear. It is important to be aware of fan's lubrication intervals and know when it's replaced

In conclusion, selecting appropriate centrifugal fan accessories contributes immensely to enhancing performance efficiency, offering a safer environment, and delivering platform security over time. Decisive selections based on application necessities ensure smooth mechanics within manifold facets, adhering to industrial standards.

We at Meridiana Aspiratori operate with a multidisciplinary approach that puts our customer at the centre, starting with an in-depth analysis of his specific needs, from the organizational context and arriving at the identification of the most suitable and safest solution for optimal achievement of the final result.

Industrial centrifugal fans are devices used to move large volumes of air or gas in industrial environments. They are called "centrifugal" because they use centrifugal force to move air or gas through the ventilation system. These fans consist of a blade rotor that rotates inside a cylindrical housing, called a "casing."

Air or gas enters the casing through an inlet nozzle located on the side of the device, then is accelerated towards the rotor, where centrifugal force pushes it outward towards the top of the casing, where it is expelled through an outlet nozzle located on the top of the device.

These fans are used in a wide range of industrial applications, including ventilation of production areas, air cleaning in purification plants, and air conditioning of workspaces. They can be designed in various shapes and sizes to fit specific application needs.

The use of industrial centrifugal fans depends on the specific requirements of the application. However, in general, they are used to move large volumes of air or gas in industrial environments.

Here are some examples of how they can be used:

• Ventilation: centrifugal fans can be used to extract stale air or fumes produced during the production process and replace it with fresh air from outside. This improves the air quality inside the workspace, creating healthier and safer conditions for operators.
• Air cleaning: these fans can be used in air purification plants to remove impurities or contaminants present in the air, such as dust, smoke, harmful gases, and odors.
• Air conditioning of workspaces: centrifugal fans can be used to cool or heat the air inside the workspace, improving the thermal comfort of operators and increasing the efficiency of the production process.
• Smoke extraction: centrifugal fans can be used to extract fumes produced during the welding process, reducing the exposure of operators to harmful substances and improving the air quality inside the workspace.

Vapor and gas extraction: these fans can be used to extract vapors or gases produced during the processing of chemicals, improving the safety of operators and the workspace environment. In any case, the use of industrial centrifugal fans must be supported by adequate design and installation of the ventilation system to ensure maximum performance and energy efficiency.

Our products

Our company offers a wide range of these products. Here are some examples:

• CA SERIES and SR SERIES, SRQL, RLD - RL: Suction and transport of clean or slightly dusty air for various applications in industrial plants and air conditioning.
• CB SERIES: For the suction of clean air, vapors, where large volumes of air are moved with low pressures.
• GF SERIES: Suction and transport of clean or dusty air, even containing low quantities of sawdust, various chips, granular materials, except filamentous materials.
• GR - RH SERIES: Suction and transport of clean or slightly dusty air. Suitable for the transport of solid materials mixed with air, chips, and sawdust with a fan not crossed by the material.
• VC/N- VG/N - VI/N - VH/N SERIES: Suction and transport of clean air. With a fan not crossed for pneumatic transport, drying, pressurization, cooling.
• P, SA, SC Series: For exhaust gas aspirators, used in the automatic machinery industry, plastics industry, and granulators.
• ZA – ZB SERIES Suction and transport of very dusty air with suspended material also containing sawdust, various shavings, granular materials. ● ZC-ZD-ZM SERIES Suction and transport of very dusty air, with material in suspension, also containing sawdust, various shavings, granular materials, filamentary materials
• SERIE ZC-ZD-ZM Aspirazione e trasporto di aria molto polverosa, con materiale in sospensione, anche contenente segatura, trucioli vari, materiali granulari, materiali filamentosi.

Meridiana Aspiratori has acquired over time technical and executive skills, whose competitive advantage lies in playing the role, not only of a supplier of high-quality products but also of unique services, such as consulting and engineering of industrial ventilation and suction systems, designed and processed based on the real needs of each individual customer.

What are the difficulties that may arise in the convective transport of hot gases,i.e. at a temperature higher than 60°C?
Fluids with a temperature greater or equal than 60°C can cause various damages to the structures that transport them.

Although steel alloy technology has made great strides, especially in the development of heat-resistant alloys, hot fluids can still cause thermal expansion and this expansion often causes irreversible deformations in the structures that carry them.

In addition to technical damages, these deformations can give rise to real accidents due to the leakage of gases, with consequent damages to environment and people.

It is therefore extremely necessary to provide to the cooling of these gases,and even to their ventilation..

Technology for ventilating hot gases

Meridiana aspiratori studied a technology which manages how to cool and, simultaneously, ventilate gases at temperatures higher than 60°C.

As shown in the figure, this technology consists of a metallic heat diffuser mounted on the fan hub. The diffuser has a small fan that allows the hot gases to pass through it.
Exactly as occurs in common computers, but in a more extended way, the contact of the gases with the heat diffuser cools the hot gases that can be put back into the convective circle forced by the fan. dal ventilatore.
As simple as it is useful, this technology represents an optimal solution to avoid structural thermal deformation phenomena.
Although the high temperature gases circulate for a short distance in the fan, the contact with the heat diffuser cools these gases very quickly, avoiding anomalous deformations,

Same as it happens in computers.

In a nutshell, our idea was precisely to apply a technology already widespread in the electronic field to successfully integrate the structures of our fans, making them effective in the forced convective transport of gases at temperatures higher than 60°C..