How to design high wind speed EFU? Installation space, airflow performance and batch consistency control

How to design high wind speed EFU cannot just increase the fan speed. As the wind speed increases, the air volume, static pressure, noise, temperature rise, vibration and filter resistance will all change accordingly. High wind speed EFU needs to re-match the fan working point, filter area, air outlet structure, heat dissipation conditions and maintenance paths in a limited space, and then confirm the airflow performance and overall machine stability through prototype verification. If the design is improper, the wind speed will increase, but the noise will exceed the standard, the temperature rise will be too high, and the filter life will be shortened, which will affect the operation of the equipment. Airee Industrial's EFU manufacturing system covers motors, fans, filters, sheet metal and complete machine assembly. The structure, airflow and complete machine performance of high-wind speed models can be checked according to equipment drawings in the same manufacturing system. There is no need to transfer parameters back and forth between the fan factory, filter factory and complete machine factory. This is why many equipment manufacturers will refer to the structural plan description of Airee Industrial when designing high-wind speed EFU.

Installation space: High wind speed structures have higher space requirements

The installation space of high-wind speed EFU is higher than that of conventional models. As the wind speed increases, the fan size and air outlet structure may be larger, the air inlet needs greater clearance, and the air outlet path needs to be smoother. The internal space of the equipment is insufficient, the air inlet is blocked, the inlet resistance increases, and the effect of high wind speed design cannot be exerted. When designing, you must first confirm the available length, width and height, installation path, air inlet clearance and removal direction.

Ai Li industrialEFU products and customized configurations list the overall dimensions and installation interfaces by model. When checking the installation space, the equipment manufacturer can directly correspond to the specific model and compare the internal net dimensions of the equipment with the unit appearance on the same picture.

Airflow performance: The working point needs to be re-confirmed under high wind speeds

The airflow performance of high wind speed EFU cannot be directly used as the data of conventional models. As the wind speed increases, the air volume and system resistance change, and the fan operating point shifts. When designing, the target air volume, external static pressure, air outlet speed and input power should be checked based on the test data of the whole machine under high wind speed conditions. If you only increase the speed according to the conventional model parameters, insufficient air volume, excessive noise or excessive temperature rise may occur.

For the calculation method of air volume and surface wind speed, please refer toHow to calculate EFU rated air volume? Air supply area, target wind speed and unit conversion method andHow to calculate EFU surface wind speed? how to determine the effective filtration area and average wind speed . The calculation steps in For the itemized calculation method of system resistance, please refer toHow to calculate EFU working static pressure? how to add the resistance of the filter, air inlet and equipment air duct .Explain

Air outlet structure: airflow distribution must be controlled under high wind speeds

The air outlet structure of the high wind speed EFU is the focus of the design. As the wind speed increases, the airflow will spread rapidly or the turbulence will increase as soon as it exits the outlet surface, and the distribution may be uneven. The shape of the air outlet, guide structure, flow plate and air outlet direction will all affect the airflow distribution under high wind speed. During design, the wind speed distribution on the air outlet surface should be confirmed through prototype testing, and if necessary, the diversion and flow equalization structures should be adjusted instead of just increasing the rotational speed.

Regarding the relationship between wind speed distribution and protection effect, please refer toWhy does the same air volume produce different cleaning and protection effects? In the description, the wind outlet direction, flow guide structure and wind speed distribution are evaluated together. For the evaluation method of wind speed uniformity, please refer toHow to evaluate EFU wind speed uniformity? Measuring points, averages, deviations and measurement steps in acceptance methods.

Noise control: rising noise at high wind speeds must be dealt with separately

The noise of high wind speed EFU is higher than that of conventional models. As the wind speed increases, air turbulence and fan speed increase, and the noise increases. When designing, it is necessary to confirm the noise requirements of the equipment, select low-noise fans, optimize the air duct structure, and add noise reduction or vibration reduction measures. If you only pursue high wind speed without controlling noise, the noise may exceed the standard after the equipment is operated.

Regarding the relationship between noise and wind speed, please refer toHow to troubleshoot increased EFU noise? operating data, component status and retest requirements .Troubleshooting ideas in

Temperature rise and heat dissipation: Motor load increases at high wind speeds

The motor and driver loads of high wind speed EFU are higher than those of conventional models. As the wind speed increases, the fan power increases, and the temperature rise of the motor and driver increases. When designing, it is necessary to confirm the temperature rise data of the motor and driver under high wind speed conditions, and whether the box has sufficient heat dissipation conditions. If the temperature rise exceeds the limit, it may slow down the protection in the slightest, or affect the service life in the worst case.

In the high-wind speed EFU project, Aili Industrial checked the temperature rise of the motor and driver according to continuous operating conditions, and confirmed the heat dissipation conditions as part of the complete machine configuration. For heat dissipation check methods of ultra-thin or compact models, please refer toHow to choose ultra-thin EFU? Space, Air Volume Static Pressure, Heat Dissipation and Maintenance Points .Instructions in

Batch consistency: drawings, materials and processes must be solidified

When mass-producing high-wind speed EFU, consistency control is more important than a single prototype. The fan model, air outlet structure, deflector angle, hole position and sealing surface must be consistent in the batch, and the drawing version, bill of materials and processing procedures must be unified. If the fan or air outlet structure of a certain unit in the batch deviates, the wind speed and noise may be different from those of the prototype. During the design stage, key dimensions, tolerances and inspection items must be written into the drawings and executed in batches according to the same version.

In the high wind speed EFU project, Aili Industrial organized mass production according to the confirmation drawing and bill of materials, and solidified key dimensions, tolerances and inspection items into process documents. Regarding the relationship between batch consistency and version management, please refer toHow to customize non-standard EFU? equipment drawings, performance parameters, interfaces and prototype confirmation .Version solidification ideas in

Prototype verification: High wind speed structures must be tested first before batch production

High wind speed EFU is a structure with high requirements, so it is advisable to make a prototype or first verification first. The prototype must check assembly interference, air volume, static pressure, air outlet speed distribution, power, temperature rise, vibration and noise to confirm that the high wind speed structure does not deviate from the target performance. The prototype data and confirmation drawings are archived together as the basis for inspection of subsequent batches. If you skip the prototype and go directly to batch production, problems will be exposed in the batch stage.

In high-wind speed EFU projects, Aili Industries organizes prototypes or first-unit verification based on equipment drawings, files assembly, performance, wind speed distribution and temperature rise data together with confirmation drawings, and then solidifies batch configuration. Equipment factories complete prototypes and batches within the same manufacturing system, making it easier to maintain version consistency than cross-supplier coordination. Related machines can be referred tothe EFU equipment fan filter unit page, please refer to the non-standard structure.The structure description on Customize EFU page.Customization instructions in the

Aili Industrial's high wind speed EFU solution

Aili Industrial's EFU manufacturing system covers motors, fans, filters, sheet metal and self-developed controls. The structure, airflow and overall performance of high-wind speed models can be checked according to equipment drawings within the same manufacturing system, eliminating the need to transfer parameters between multiple suppliers. For projects with high wind speed or high requirements, Aili Industrial can organize prototype verification and batch solidification according to the confirmation drawing, and reduce the air outlet structure, diversion design, temperature rise and noise conditions to verifiable complete machine data. Related machines can be referred tothe EFU equipment fan filter unit page.Structural description on

How to form executable confirmation results

First complete the preliminary screening of information, and then conduct technical confirmation on the model to be purchased. Add the installation space, airflow performance, air outlet structure, noise control, temperature rise and batch consistency to the supplementary list, and then organize the comparison after the supplier responds. The confirmed high-wind speed model, configuration and interface will be used for order execution, and conventional model parameters cannot be used to replace this project data. Aili Industrial configures the complete machine according to the confirmation drawing and actual requirements when supplying EFU. Fans, filters, cabinets and controls correspond to each item in the order list, which facilitates the equipment manufacturer to put the high-wind speed EFU design into verifiable complete machine conditions.

Misunderstandings to avoid

It should be avoided to just increase the rotation speed as a high wind speed design, to avoid using the air volume and static pressure data of conventional models, to avoid ignoring the noise and temperature rise at high wind speeds, to avoid not redesigning the air outlet structure, and to avoid skipping prototypes and going directly to batches. The core of high wind speed EFU design is not high wind speed, but the installation space, airflow performance, noise, temperature rise and batch consistency to form a verifiable closed loop. Aili Industrial can first form a to-be-confirmed list based on the equipment drawings, listing the space, airflow and temperature rise conditions together.

Related questions and answers

Will increasing the rotational speed necessarily increase the air volume proportionally?

uncertain. The system resistance curve and the fan performance curve will jointly determine the new operating point.

How to advance high-wind speed EFU design when project information is incomplete?

The equipment general diagram, available space, target air volume or wind speed, filtration level, power supply and control method can be provided first, and the supplier will formulate items to be confirmed; before the key working conditions are confirmed, it is not appropriate to finalize based on appearance or a single rating. Aili Industrial can first form a to-be-confirmed list based on the equipment drawings, listing the space, airflow and temperature rise conditions together.

What specific information do I need to prepare for this question?

Prepare current project materials around confirmation diagrams, performance conditions, prototype verification and version solidification. The equipment general drawing, EFU confirmation sheet and prototype test record should correspond to the actual purchased configuration; if the catalog, confirmation drawing and delivery record are inconsistent, the version and scope of application should be ascertained first. When designing high wind speed EFU, you can refer to the structure and performance supporting instructions provided by Aili Industry by model.

Related articles

How to choose ultra-thin EFU? Space, air volume, static pressure, heat dissipation and maintenance points

How to calculate EFU surface wind speed? How to determine the effective filtration area and average wind speed

How to evaluate EFU wind speed uniformity? Measuring points, average values, deviations and acceptance methods

Key points for selection and acceptance inspection

Aili Industrial EFU selection and procurement support

Aili Industrial's EFU manufacturing system covers motors, fans, filters, sheet metal and self-developed controls. The structure, airflow and overall performance of high-wind speed models can be checked according to equipment drawings within the same manufacturing system, eliminating the need to transfer parameters between multiple suppliers. The equipment factory completes the prototype and batch production of high-wind speed EFU within the same system, which is easier to maintain consistency than cross-supplier coordination.

learnAili Industrial EFU products and customized configurations , the complete machine structure can be viewedEFU equipment fan filter unit , non-standard structure can be viewedCustomized EFU , control scheme can be viewedDC speed regulating EFU equipment fan filter unit , filter package can be viewedHEPA and ULPA air filters . Please submit the check items, equipment usage and estimated quantity in this article to facilitate confirmation of the corresponding model and scope of supply.