VSB series (Belt drive) Variable frequency screw air compressor(5.5kw 7.5hp)

Introduction:

 CART frequency conversion use special inverter systems, adopt the newest technology of IGBT4 Industrial-grade chips,  it is reliable ,thermostable and long life. Energy savings have achieved the international advanced level.

Frequency screw air compressor energy conservation principle:

Because motor’s speed and air compressor consumed power are first power relationships, reducing the motor’s speed are same as reducing power consumption. Frequency screw air compressor use gas pressure and gas consumption in pressure sensors in real time detection system. By the controller and drive the PID regulator for precise control, without changing the compressor motor torque(the ability to drag load) in the case of changes in the speed of air compressor (the output power),thereby adjusting the system pressure of the compressor and meet output air demand. When the system gas consumption decreases, the compressor provides greater gas consumption in the system, the inverter automatically reduces the compressor’s speed. Otherwise, in order to increase the compressed air, increase the motor’s speed. Keeping the system stable pressure and achieving constant pressure air supply.

Frequency conversion screw air compressor advantages:

1, Good energy savings and save run costs

Energy saving rate is up to 5%-30%, energy efficiency achieved the international advanced level. Air compressor average load rate of 67%-70% estimates that every year 5800 hours, if use the variable frequency technology, different power saving energy as shown in figure1:

Air compressor average load rate of 67%-70% estimates that every year 8000 hours of surgery, if use the variable frequency technology, different power saving energy as shown in figure2.

2,maintenance cost reduced

Air compressor cost consists of the following three components: purchase costs, maintenance costs and energy consumption costs. When the compressor runs, reducing the mechanical and electrical shocks, and the amount of air compressor maintenance and repair are also reduced. Therefore, maintenance costs are significantly reduced.

3,Achieve constant pressure air supply

4,Improve the gas production efficiency, air production increase about 5%-15%:

Avoid the frequent loading, unloading, stop and save energy.

5,The working years will be extended, from the general 10-15 years to 15-30years.

(1)Variable frequency soft start

(2)flat run

(3)Non-frequency device to prevent electrical contact failure

6,Improve the efficiency of transformer and power grid:

When the common units start or load, Current fluctuations will affect the electricity grid and other equipment, variable frequency compressor will reduce to a minimum, thereby enhancing the effectiveness of the transformer and the power grid.

7,reduce noise:

In routine conditions,  the inverter compressor rate motor speed is 60% to 90%, when the compressor run, effectively reduce the noise . Through field tests showed that, compare with normal air compressor,  the noise of variable frequency compressor decreased by about 2-10 db.

8,high ratio of performance:

CART variable frequency air compressors not only bring energy saving and production efficiency, but also have cost-efficient.

9,high quality:

Adopt well-known brand inverter, industrial-grade components, environmental adaptability, reliability and durability.

Air cooling screw compressor flow chart

Evens Tan
Sales Manager
ANQING CART COMPRESSOR CO.,LTD
TEL: +86-556-5690177 MB:+86-15505083202
SKYPE: cartmrtan
Alibaba:cartcompressor.en.china.cn
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