I. Kernantwoord
The sound insulation effect of Huaquanfang soundproof generator set (quiet type) is excellent. The operating noise at a distance of 7 meters can be as low as below 75 desibels, significantly lower than the 95-110 decibels of traditional open-frame generator sets.
| Comparison item | Huaquan silent type unit | Traditional open-rack unit |
| Noise at 7 meter | ≤75 decibels | 85-100 desibels |
| Noise at 1 meter | ≤75-85 decibels (depending on power) | 95-110 desibels |
| Human perception | Equivalent to the normal conversation volume of two people | Equivalent to the sound of a chainsaw or firecrackers |
| Applicable Environment | Hospitale, woongebiede, datasentrums, hotelle | Konstruksie terreine, wilderness areas, and factories far away from crowds |
Huaquan Power tips: Huaquan Stille kragopwekker sets adopt a fully enclosed noise reduction enclosure filled with multiple layers of sound-absorbing materials, combined with an efficient muffler design. Whether it’s nighttime operations or use in residential areas, it ensures quiet and worry-free operation.
II.Comparison of decibels for mute effects
To intuitively understand what 75 decibels is, here is a comparison table of common sounds:
| Source of sound | Decibel value | Compared with Huaquan silent unit |
| late-night library | 30dB | quieter |
| Quiet office | 40-50dB | quieter |
| Huaquan silent unit (by 7 meter) | ≤75dB | — |
| The two people are having a normal conversation | 60-75dB | The same level |
| outdoor unit of air conditioner | 50-60dB | Slightly lower than the silent unit |
| Busy street | 70-85dB | Equivalent to a silent aircraft engine |
| Traditional open-frame unit (by 7 meter) | 85-100dB | 10-25dB higher than silent units |
| Electric saw sound/firecracker sound | 100-110dB | Traditional unit level |
For every 10 dB increase, the volume perceived by the human ear approximately doubles. Huaquan’s silent units are 20-35 dB lower than traditional units, which means the perceived loudness is only 1/4 aan 1/8 of that of traditional units.
III. Technical Guarantee for Silent Effect
The Huaquan silent generator set achieves ultra-low noise operation through multiple noise reduction designs:
- Multi-layer impedance mismatch noise reduction structure
The Huaquan soundproof box adopts a multi-layer barrier impedance mismatch noise reduction structure. The inner surface of the box is designed with concave and convex undulations, which makes the distance between the internal combustion engine and the box body non-fixed, forming multiple layers of barriers. This makes it difficult for noise to form a regular return path.
| Tegniese kenmerke | verduideliking |
| structural design | The concave and convex surface of the box disrupts the return of noise |
| Noise reduction principle | Multi-layer impedance mismatch to avoid echo accumulation |
| knaldemper | Built-in large impedance silencer |
- Extra-thick sound-absorbing cotton + galvanized sheet interlayer
The interior of the Huaquan soundproof box adopts a double-layer sound insulation structure:
| materiaal | effect |
| Extra-thick soundproof cotton | Highly flame-retardant sound-absorbing material, capable of absorbing noise energy |
| Perforated galvanized sheet | Block the noise transmission path, prevent fire and noise |
The inside of the box body is made of high-performance sound-absorbing materials to reduce the noise of the unit. This dual structure of “klankabsorberende katoen + galvanized sheet” can attenuate noise by 30%-40%.
- Fully enclosed noise-reducing enclosure
The Huaquan soundproof enclosure adopts a fully enclosed structure and is made of steel plates, featuring good sealing, rain and snow resistance, and dust prevention.
| Process Characteristics | verduideliking |
| Box material | National standard cold-rolled steel plate, laser cutting, welding, and powder coating and baking paint |
| surface treatment | Spray painting technology treatment, corrosion-resistant and rust-free |
| structural design | Modulêre ontwerp, easy to assemble and disassemble, and elegant appearance |
| protective function | Dual functions of noise reduction and rainproof |
- Low-noise generator
Huaquan Power starts from the source and adopts low-noise Kragopwekkers with built-in silent features, fundamentally reducing noise generation.
IV.Noise Reference for Silent Units of Different Power Levels
| eenheid krag | Geraasvlak (by 7 meter) | Toepaslike scenario's |
| 30kW | About 65-70dB | Household use, small shops, hospitale |
| 70kW | About 70-72dB | Post and telecommunications, kommunikasie, guesthouses, hotelle |
| 300kW | About 72-75dB | Hospitale, high-rise buildings, nywerheids- en mynbou-ondernemings |
| 500kW | ≤75dB | Datasentrum, large factory |
| 600kW | About 75dB | Large-scale industrial projects |
Huaquan reminds you that the noise reduction effect of the intelligent mute integrated power station can be controlled below 70 desibels, meeting international standards.
V.Applicable Scenarios of Silent Unit
Huaquan silent generator sets are widely used in places with strict noise requirements:
| application field | typical scenario | Noise requirements |
| hospitaal | Operating room, ICU, emergency standby power supply | Nighttime ≤ 55dB, Daytime ≤ 65dB |
| residential community | Emergency standby power supply | At night, it is ≤50-55dB |
| Hotel/guesthouse | Standby power supply, banquet hall power supply | Daytime noise level ≤60dB |
| datasentrum | 24-hour uninterrupted power supply | There are certain requirements regarding noise |
| Communication base station | Standby power supply for remote base stations | Unmanned operation, with obvious advantages of low noise |
| high-rise building | Elevator, brandbeskerming, noodkragtoevoer | It is necessary to meet environmental protection requirements |
| nywerheids- en mynbou-ondernemings | Standby power supply in the factory area | Low noise is required in residential areas |
The main difference between silent units and regular generator sets lies in the addition of sound elimination devices, primarily intended for households and places with stringent noise control requirements.
VI.Comprehensive Comparison between Silent Air Conditioning Units and Open-Rack Air Conditioning Units
| comparative dimension | Huaquan silent type unit | Huaquan open-frame unit |
| Noise at 7 meter | ≤75dB | 85-100dB |
| Human perception | Normal conversational volume | Electric saw sound/firecracker sound |
| protective function | Rainproof, snowproof, dustproof | A computer room needs to be built for protection |
| Appearance design | Elegant appearance, customizable color options | Industrial appearance |
| Installation requirements | It can be placed directly outdoors, without the need for a machine room | A machine room or a rain shelter needs to be built |
| price | Relatively high (+20%-30%) | lower |
| Toepaslike scenario's | Residential areas, hospitale, hotelle, datasentrums | Konstruksie terreine, wilderness, factories far away from crowds |
VII. Algemene kwessies
V1: How quiet is 75 desibels?
A: 75 decibels is approximately equivalent to the volume of normal face-to-face communication between two people. This means:
- It will not affect normal conversation from a distance of 7 meter
- Using it at night will not disturb residents’ rest
- The hospital environment is safe for use
V2: Can the silent air conditioning unit be used outdoors in rainy weather?
A: Ja, dit kan. The Huaquan soundproof box is made of steel plates, with a rust-proof paint coating on the surface. It features noise reduction and waterproof capabilities. The box is fully enclosed, with good sealing, providing protection against rain, sneeu, and dust.
V3: Does a silent air conditioning unit require an additional machine room?
A: No need. Huaquan’s silent unit adopts a fully enclosed noise reduction enclosure with high protection level, which can be directly placed on a flat outdoor ground without the need to build a machine room, greatly saving installation costs and time.
Q4: Are the noises produced by silent air conditioning units of different power levels the same?
A: There are slight differences. Oor die algemeen, higher power tends to result in slightly louder noise
- 30-100kW：65-72dB
- 100-300kW：70-75dB
- 300-600kW：72-78dB
Egter, all Huaquan silent units are controlled to be around 75dB (at a distance of 7 meter), which is much lower than traditional units.
Q5: Will the noise reduction effect of the silent unit degrade over time?
A: With proper use and maintenance, the sound insulation effect will not significantly deteriorate. The Huaquan sound insulation box body is made of high-flame-retardant sound insulation cotton and galvanized sheet metal partitions, ensuring good durability. It is recommended to regularly check the status of the box body’s sealing strips and sound absorption materials, and replace them promptly if damaged.
Q6: Can silent air conditioning units be used in data centers?
A: Ja, the Huaquan 500kW silent unit has been widely used in data centers. Equipped with a self-starting control system, it achieves unattended operation and ensures 24-hour uninterrupted power supply. The noise level at a distance of 7 meters is ≤75dB, meeting the requirements of data centers for the operating environment.
📌 Summary: Huaquan Silent Generator Set – Quiet, Betroubaar, and Widely Applicable
The sound insulation effect of Huaquanfang’s loudspeaker generator set is at the leading level in the industry. The core technical parameters are as follows:
| parameter | Huaquan Standard |
| Noise at 7 meter | ≤75 decibels (equivalent to normal conversation volume) |
| Noise reduction technology | Multi-layer impedance mismatch noise reduction structure + ultra-thick sound-absorbing cotton + perforated galvanized sheet |
| Box material | National standard cold-rolled steel plate, with corrosion resistance achieved through spraying treatment |
| protective function | Integrated noise reduction, rainproof, and dustproof |
| Toepaslike scenario's | Hospitale, residences, datasentrums, hotelle, kommunikasie basisstasies |
Core advantages of Huaquan Power’s silent unit:
- Ultra-quiet operation: noise level at 7 meters is ≤75dB, significantly lower than the 95-110dB of traditional units
- Multiple noise reduction technology: multi-layer impedance mismatch noise elimination structure + built-in large muffler
- Fully enclosed box: rainproof, snowproof, dustproof, suitable for direct outdoor use
- Intelligent control: Configurable self-starting control system for unattended operation
- Widely used: ideal choice for noise-sensitive places such as hospitals, datasentrums, woongebiede, and hotels
For users who need to use generator sets in residential areas, hospitale, hotelle, datasentrums, and other places with strict noise requirements, Huaquan’s silent generator sets are an ideal choice for their high efficiency, betroubaarheid, and quietness.
For more technical details on silent unit technology or to obtain selection advice, please contact Huaquan Power’s customer service
