Silent Generator Decibel Levels: 60-75 dB Explained

什么是 noise level regulations in decibels of Huaquan’s silent generator set?

满负荷运转时, the Huaquan silent generator set can produce Noise Level regulationss as low as below 75 分贝 (测量距离为 1 距设备一米), 明显低于 90-110 decibels produced by traditional open-type generator sets.

The comparison of noise data at different measurement distances is as follows:

measurement position	Noise level of Huaquan silent unit	Measurement standard description
在 1 仪表	≤75分贝(一个)	The factory testing standard is equivalent to the volume of normal conversation between two people
在 7 米	65-75分贝(一个)	Simulate actual usage scenarios to meet urban environmental protection requirements
Ordinary open-type unit (在 1 仪表)	95-110分贝(一个)	Equivalent to the sound of an electric saw or firecrackers

Taking Huaquan Power’s 120kW silent generator set as an example, its noise limit at 1 meter is 75dB(一个); 尽管 Huaquan Power’s 15kW low-power silent generator set can control noise within 60-65 分贝, making it more suitable for quiet environments such as homes.

What does 75 decibels mean? What noise level does it belong to?

75 decibels is roughly equivalent to the volume of two people having a normal conversation face-to-face, which meets the requirements of noise-sensitive places such as hospitals, 住宅区, 学校, 和数据中心.

Daily Noise Comparison Reference Table:

noise source	Decibel value	Human perception
Late-night library	30分贝	很安静
Normal conversation	60-75分贝	comfortable
Huaquan silent generator (在 7 米)	65-75分贝	可以接受, does not affect conversation
Ordinary diesel generator (在 1 仪表)	95-110分贝	It sounds like an electric saw, unbearable
aircraft engine	110dB+	Eardrum discomfort

What does the noise level of Huaquan Power‘s silent generator set signify? It ensures quiet and worry-free operation, whether it’s for emergency surgery in the middle of the night, life monitoring in the ICU, or power supply in residential areas at night.

三、. Are the noise levels the same for different power models?

The noise levels of Huaquan silent generator sets with different power levels vary slightly, but they are all controlled below 75 分贝. 一般来说, the lower the power, the lower the noise.

机组型号/功率	noise value	measure distance	适用场景
HQ15GF (15kW small model)	60-65分贝(一个)	在 1 仪表	家庭使用, 小商店
HQ120GF (120kW medium-sized)	≤75分贝(一个)	在 1 仪表	医院, 办公楼
HQ500GF (500kW large-scale)	75分贝(一个)	在 1 仪表	数据中心, 工厂
Conventional models across various power ranges	65-75分贝(一个)	在 7 米	General for cities and residential areas

笔记: The entire series of Huaquan Power’s silent units are designed with a unified noise reduction standard, targeting a noise level of 75dB(一个) regardless of power output, ensuring a consistent user experience.

How does Huaquan silent generator achieve low noise?

回答: Huaquan Power controls the noise of the generator set below 75 decibels through five major silent black technologies:

Fully enclosed noise-reducing enclosure

The Huaquan soundproof enclosure is treated with spray painting technology, making it corrosion-resistant and rust-free. The enclosure is made of thickened cold-rolled steel plates that are cut and bent into a solid structure with an attractive appearance.

Multi-layer sound-absorbing material

The inner wall of the box is filled with 6cm thick sound-absorbing cotton, combined with perforated galvanized soundproof boards, forming a dual noise reduction structure of “吸音棉 + galvanized boards”, which can reduce noise by 30%-40%.

Maze-style air intake and exhaust sound-absorbing channel

The air intake and exhaust channels are designed with a three-layer blocking labyrinth structure: this ensures the sufficient input of fresh air, effectively cools the unit during operation, and also effectively seals the noise transmission path, 实现 “ventilation without sound transmission”.

High-efficiency filter-type smoke exhaust silencer

The exhaust system is equipped with an industrial-grade resistive muffler, which eliminates the high-frequency “hissing” sound produced when high-temperature and high-pressure exhaust gas is ejected, further reducing exhaust noise.

Shock absorption design

A rubber automotive shock absorber is installed between the engine and the base, featuring a dual-screw design, effectively reducing vibration transmission and preventing the box from becoming a “large speaker”.

What are the applicable scenarios for Huaquan silent 发电机?

Huaquan silent generator sets, with their ultra-low noise characteristics, have become the “standard equipment” in the following scenarios:

应用场景	Why choose Huaquan silent unit	Recommended power range
Hospital/Operating Room	Emergency surgeries in the middle of the night and ICU monitoring require absolute silence, and the ordinary unit with a noise level of 110dB cannot be used	100-500千瓦
Residential area/house	Power supply at night does not disturb residents and complies with community noise management regulations	10-100千瓦
School/library	The teaching environment is sensitive to noise and requires silence	50-200千瓦
数据中心	24-hour uninterrupted power supply requires a low-noise operating environment	300-1000千瓦+
Night construction/emergency rescue	There are noise restrictions for urban nighttime operations, and silent units are a compliant choice	50-300千瓦
Hotel/shopping mall	The business premises need to maintain a comfortable environment	100-500千瓦
Large-scale event/concert	Ensure power supply without affecting the performance effect	200-1000千瓦+

Typical reference: Huaquan Power’s 500kW silent generator set has been widely used in hospitals, 数据中心, 以及其他场景, with users reporting “it really works well”.

Noise Comparison between Silent and Ordinary Generator Sets

The noise control advantage of Huaquan silent generator sets is very obvious. The following is a detailed comparison:

比较项目	Huaquan silent generator set	Ordinary open-type unit
Noise at 1 仪表	≤75分贝(一个)	95-110分贝(一个)
Noise at 7 米	65-75分贝(一个)	85-100分贝(一个)
Human perception	Normal conversation volume	Similar to the sound of a chainsaw or firecrackers
适用环境	Cities, 住宅区, 医院, 学校	建筑工地, wilderness, factories far away from crowds
protective performance	IP23 is rainproof and dustproof, suitable for outdoor placement	A computer room needs to be built for protection
price	相对较高 (+20%-30%)	降低

Key conclusion: The noise of a regular unit is equivalent to the sound of an airplane engine at 110 分贝, whereas the Huaquan silent unit can control the noise to 以下 75 分贝, which is equivalent to a noise reduction of over 35 分贝. 对于每一个 10 decibels increase, the perceived volume by the human ear approximately doubles – this means that the actual auditory loudness of the Huaquan silent unit is only 1/8 到 1/4 of that of the regular unit.

七. How to choose the suitable power for my Huaquan silent generator?

When selecting Huaquan silent generator sets, 建议按照以下步骤操作:

步骤	考虑因素	Specific suggestions
1	Total load calculation	List and add up the power of all devices that require simultaneous power supply
2	Starting current reservation	电机驱动设备的启动电流 (air conditioners/water pumps) 是 3-5 倍额定电流
3	安全裕度	The main power of the unit is ≥ 1.2 乘以总负载
4	Noise limit assessment	Confirm the daytime/nighttime noise standards for the installation site
5	Confirmation of installation location	The silent unit only requires a flat floor and does not need to be installed in a machine room

Hint: Huaquan Power provides a full range of silent generator sets from 15kW to 2000kW+, all utilizing our self-developed all-copper brushless motors and multiple noise reduction technologies. 如需详细定价或型号选择建议, 请联系华泉电力客服.