Permanent Magnet Frequency Conversion 20HP Rotary Screw Drive Air Compressor

Quick Details

Main machine: LG15EL-BD-B (SKK) Motor:Y2-132S2 (Jiangtian/Qingjiang)

Intake valve: KVPB02501 (Hongxing) Minimum pressure valve:KPVK0200450 (Hongxing)

Solenoid valve:Intake valve built-in Coupling:PSEC0283-030-038(Jichao)

Safety valve:DN08-A28X-16T-0.88MPa (Fuyu) Axial flow fan:300YWF-N-C-01 (Mahr)

Air filter:56 001 106 100J (Kerry) Oil filter:66 094 172EF (Kerry)

Air Oil separation core:55110 165100 (Kerry) Inverter:NZ200T-7.5 (Zhongchen)

Electronic control:cocontactor(Schneider) PLC controller(Silk) Screw group:5:6 toothed rotor

Compress mode:Continuous, single stage Discharge pressure:P2=0.65-1.0MPa

Cooling method:Fan cooling Lubricating oil capacity:About 6.5 liters

Compressed air outlet temperature:10℃ ~ 15℃ higher than the ambient temperature

Motor speed:N=2930r/min Working weight:About 200 KG

Air temperature limitation:0℃~45℃ Noise:74dB(A)

Oil consumption:The exhaust oil content is less than 3PP

Differences between Silk Compressors BMVF variable frequency screw air compressor and external variable frequency drive screw air compressor
Ordinary screw compressors can regulate the motor's rotation speed through external inverters to regulate the air discharge volume in order that air volume produced matches that of used and hence achieves energy efficiency. However ordinary screw air compressors are built with motors with mains rated rotating speed, rated power and rated efficiency, whereas external inverters would force the air compressor's motor to deviate from its mains rated rotating speed. Once the ordinary motor deviates from its mains rated rotating speed, its efficiency will be reduced significantly, and the greater the deviation the more significantly the efficiency will be declined. Withing all its rotating speed range, the BMVF variable frequency screw air compressor is able to maintain extremely high motor efficiency, thus giving it superior energy-saving effect over ordinary screw air compressor with external inverter. In addition, the regulation range of external inverters for ordinary screw compressor is from 40% to 100%. In other words, when
the working condition deviates in excess of 60%, the external inverter will not be able to regulate the motor's rotating speed. In contrast, Silk Compressor's BMVF variable frequency air compressor has a operating speed range of 20-100%, which means that even in the case of 80% deviation from working conditions, Silk Compressor's BMVF variable frequency air compressor can still function efficiently.
Table of Comparison for Energy Efficiency of 37kW screw air compressor
Silk BMVF variable frequency screw compressor Annual power consumption: 183.520kW.
Ordinary mains frequency screw compressor Annual power consumption: 281,200kW.
Ordinary variable frequency screw compressor Annual power consumption: 201,280kW.
Screw air compressor with inverter Annual power consumption: 236,800kW.
Take 37kW screw air compressor as an example, all efficiency values were recorded during experiamental tested and the annual power usage calculation were based on average operating time of 8,000 hours per annum: Silk BMVF screw air compressor compared with external variable frequency inverter screw air compressor.
Energy-saving per annum: 236,800-183,520=53,280 kW.

A high-effciency PM variable frequency screw air compressor has advantages in the following three areas:

The first is to have a highly effcient screw compression unit;

Secondly to have a high-effcient PM synchronous motor;

Thirdly to have first-clsaa PM variable control technology.

BOREAS PM variable frequency air compressor possessess significant technical advances in the following three areas.

Addition:

Compared to the ordinary PM variable frequency screw air compressor,BOREAS PM variable frequency screw air compressors have obvious technological advantages in the three aspects including screw compression unot efficiency,motor efficiency,dan control technology.

    Silk Road is a state-level large scale enterprise in China, which has been listed among the five industries of Zhejiang Provincial government, the 958 Technology Catching-up Plan and the key enterprises by Zhejiang provincial government. The group is the civilized enterprise of provincial level and contract abiding and trustworthy enterprise of state level.
Currently, Silk Road has 18 subordinate companies with over 4100 employees. It covers an area of over 430,000 m2 with the total building complex area over 230,000 m2 and the total assets of the group amounts to over 1.5 billion.
"Silk Road" trademark, together with its logo, is the first company awarded with "Chinese renowned trademark" in the same trade and Silk Road air compressor is among the first exempted by Chinese government.
By the year of 2008, the total sales revenue of the group is 2.03 billion RMB, with 173 million RMB of profit, and USD10.69 million worth of export goods. Silk Road has been honored with "Special Quzhou Mayoral Award" for the past consecutive eight years.
Silk Road has a sophisticated national-wide retail network supported by the high-quality customer service system. The nine major series of Silk Road product spread from rock drilling unit, screw air compressor to excavator, crawler drill etc, and altogether 18 categories with over 800 individual products.
By far, Silk Road is the largest rock drill manufacturer in the world, and the largest air compressor manufacturer in China. Exports are shipped to over 20 different nations and regions such as United States, Germany, Japan, South Korea, Russia, African and Latin American countries.
Silk Road owns the best fine processing equipment over 1000 units. It has formed the machinery processing system with advanced technology, top-rate equipments and structure integrity.
In recent years, Silk Roadsticks to the talent-employment standard of Capable, Tough and Reliable and upholds the enterprise spirit of Flexible, Efficient, and Confident. Focusing on technology and industry innovation and centering product and market restructuring, the group have already planned a "4211" development strategy.
In 2005, cooperating with Xi'an Jiaotong University compressor research institute and interlinking with the state 863 project, the group successfully developed a high-tech product: screw air compressor's core part : screw rotors . It marks the end of relying on import this unit from overseas only in China. The success has made Silk Road the first in the industry which owns the intellectual property, core technique and competitive advantage among large-scale equipment manufacturers in China. In 2006, Silk Road was awarded with a second-class outstanding technique invention award by Chinese government for this technology.
Upon the success, we are currently trying to list one of our subordinate company: Silk Road to the share market. Also, we are hoping to develop Silk Road into a large-scale and diversified manufacturer with its own patent core technique and core competitiveness. We are striving to rejuvenate our national industry and develop as the pillar of Chinese air compressor industry in a yearning for greater contribution to China's harmonious society construction and national equipment manufacturing industry development.