The 4kw vortex high-pressure fan, also known as the air ring fan or side flow blower, is an industrial air source equipment with a power of 5.5HP (4kW). It adopts an aluminum alloy die-casting shell and integrates high air pressure, high air volume, low noise, and maintenance free functions. It is widely used in industrial blowing and suction dual-use scenarios. Becoming an ideal gas source solution in the industrial field. It can meet the general industrial air blowing and suction needs, and is also capable of high-pressure working conditions. It is easy to maintain and has a long service life, making it the preferred choice for upgrading gas source systems for small and medium-sized enterprises.
Principle of Side Channel Boosting：
The motor drives the impeller to rotate at high speed, and the blades push the air to form a spiral motion
Air is squeezed into the side groove, generating centrifugal force and increasing pressure
After multi-stage pressurization, it is discharged from the air outlet to form a high-pressure airflow
Single blade 4kW fan：
air volumeApproximately 230-320m ³/h, wind pressure approximately 36-38kPa
Applicable scenariosScenarios with low wind pressure requirements such as water treatment aeration, material transportation, and workshop ventilation
priceRelatively economical, about 2000-3500 yuan
advantageLow energy consumption, simple maintenance, suitable for continuous operation
Double bladed 4kW fan：
air volumeApproximately 300-500m ³/h, wind pressure can reach 39-44kPa
Applicable scenariosHigh pressure blowing, vacuum adsorption (negative pressure>30kPa), sewage treatment and other high-pressure demand scenarios
priceSlightly higher, about 3500-6000 yuan
advantageHigher efficiency and more stable performance under high-pressure conditions
Choose SuggestionsWhen the wind pressure demand is greater than 30kPa, priority should be given to double impellers; Due to limited budget and wind pressure requirement<30kPa, a single impeller is optional.
The same device can achieve positive pressure blowing and negative pressure suction, reducing equipment procurement costs. For example:
Blowing applicationMaterial conveying, drying treatment, pneumatic control
Inhalation applicationVacuum adsorption, dust removal system, material recovery
The consumable parts only have two bearings, with a design lifespan of 20000 hours (approximately 2.3 years of continuous operation)
Oil free operation to avoid oil pollution and reduce maintenance frequency
The impeller has no contact with the shell, no wear, and a long service life
Optimize impeller design, control noise within 70-75dB (A), and improve working environment
Lightweight aluminum alloy shell (25-45kg) reduces vibration and noise transmission
Front side blade design increases efficiency by 15-20%
Can operate stably within the range of 345-415V and adapt to different power grid environments
50Hz/60Hz dual band compatibility, universal
Motor protection level IP55, insulation level F, suitable for harsh industrial environments
Small size (approximately 600 × 450 × 400mm), light weight, and space saving
Can be installed in any horizontal or vertical direction to adapt to different installation conditions
Standardization of import and export interfaces facilitates pipeline connections
Sewage treatment aerationGenerate microbubbles to improve oxygen transfer efficiency, with a processing capacity of approximately 50-80 tons/day
Sludge mixingPrevent sedimentation and maintain the suspended state of activated sludge
foam fractionationMake suspended solids adhere to bubbles and float upwards, purifying water quality
electronics industryCircuit board cooling, component drying, static elimination
Plastic industryCooling and shaping of injection molded parts, plastic film winding, extruder assistance
food processingBiscuit cooling, bottle drying, bread drying (oil-free design ensures food safety)
printing and packagingPaper conveying positioning, ink drying, labeling assistance
Aquaculture oxygenationEach fish pond can cover 3-5 acres, increasing the density of aquaculture
Ventilation of livestock and poultry housesKeep the air fresh and reduce the incidence of diseases
incubation equipmentProvide a constant temperature and humidity environment to improve hatching rate
medical equipmentNegative pressure suction, pneumatic transmission system
building materials industryGlass processing (blowing molding), stone cutting and cooling
automobile manufacturingCleaning, drying, spraying, and exhaust gas treatment of components
Determination of air volume：
Inhalation application: suction port area ≤ 1/2 of fan inlet cross-sectional area, ensuring flow velocity ≥ 18m/s
Blowing application: Based on pipeline resistance calculation, ensure that the outlet pressure is ≥ 1.2 times the required pressure
Wind pressure calculation：
power matching：
P (required power, kW)=Q (air volume, m ³/h) × p (air pressure, kPa)/(3600 × η)
η is the efficiency of the fan (about 0.7 for a single blade and about 0.8 for a double blade), and it is recommended to reserve a 15% power margin
Basic requirements：
Horizontal installation on a stable platform, with a maintenance space of ≥ 50cm reserved around it
The installation surface should be flat to prevent vibration (vibration speed difference<3 times)
For large wind turbines, it is recommended to fix the concrete foundation
pipeline connection：
Flexible hoses (rubber/spring tubes) must be used for shock absorption at the air inlet and outlet to avoid rigid connections
Pipeline diameter ≥ fan interface diameter to reduce resistance
A filter (with an accuracy of 50-100 μ m) should be installed at the suction end to extend the lifespan of the fan
Electrical safety：
The three-phase power supply must be reliably grounded (grounding resistance<4 Ω)
Cable cross-sectional area ≥ 2.5mm ², ensuring current carrying capacity
The motor wiring must comply with the nameplate markings (△ connection is usually used for 3kW and above)
Listen: The running sound is smooth without any noise
Touch: The shell temperature is not hot to the touch (≤ 80 ℃)
Look: Slight vibration, no abnormal oscillation
Cleaning: Clean the dust on the surface of the filter
Check the balance of the impeller (correct if necessary)
Check the sealing system and replace the aging sealing ring
For external bearing types, replace the lubricating grease (high-temperature lithium based grease)
