【Power range:7.5kw-400kw】
Energy saving efficiency:15%-65%】

1、 Advantages of renovation:

1. Save electricity

Compared with traditional controlled compressors, frequency converter controlled compressors have the most practical significance in saving electricity. The air supply of the compressor can be changed at any time according to the different gas consumption in the workshop, which is the most economical operating condition and saves about20%above.

2. Reduce operating costs

The operating cost of traditional compressors consists of three parts: initial procurement cost, maintenance cost, and energy cost, of which energy cost accounts for about77%After the frequency conversion transformation, not only is the energy cost effectively reduced, but the impact of frequency conversion starting on equipment is also reduced, and constant pressure gas supply can be achieved. When the pressure fluctuation of the outlet pipe (storage tank) is ≤0.02MpaIt can also reduce maintenance costs. In addition, after the transformation, it has an automatic constant voltage timing rotation function, which improves the automation level of the system and will inevitably reduce equipment maintenance costs.

3. Improve control accuracy

4. Can extend the service life of the air compressor

2、 Explanation on the use of variable frequency energy-saving in air compressors

1.Power saving（37KWFor example)

AUnused power savingNo matter how much gas is used in production, ordinary spiral rod machines always operate like this from work to work. Although the unit will unload and run empty when the air pressure is full, the unit consumes energy during unloading and running empty45%The no-load loss. In general, the average uninstallation time accounts for about% of the total running time30%So one37KWThe ordinary air compressor opportunity is therefore wasted28000first/Annual electricity bills. That is to say, there is no unloading of variable frequency air compressors, so there is no idle waste.

Unused waste calculation method

30%Unloading time x (Loss of unloading time)37KW×45%No load current) ×8000hour/Year X0.7first/linear measure=28000first/In general, the actual gas consumption of an air compressor may be less than the rated gas consumption of the unit, some due to consideration of margin when purchasing, some due to partial use of gas at certain times, some due to production issues during peak and off peak seasons, etc. Such situations can result in excess supply and insufficient use, which is considered as "not using up"

BLow pressure power saving:'High pressure low use' is also a waste, just like 'never used up', ordinary spiral rod machines always6~8Frequent loading and unloading of kilograms resulted in actual use6Kilograms, that much extra2Frequent loading of kilograms leads to wastage20300first/Year. Similarly, if it is a variable frequency air compressor, it always maintains6If the supply of gas remains constant in kilograms, then there is no such thing as this2The climb loss of kilograms.

CClimbing waste calculation method:

70%Loading time x (due to loading time)2The loss of kilogram climb is37KW×14%）×8000hour/Year X0.7first/linear measure=20300first/year

2 Constant gas supply pressure

Ordinary air compressors, whether they are piston or screw machines, will have a pressure difference of about 2 kilograms, which is not only wasteful, but also reduces production efficiency for most users and seriously lowers product quality. Therefore, variable frequency air compressors always produce gas with constant pressure and variable frequency, and have been warmly welcomed by many users!

3 Low noise

The variable frequency air compressor runs smoothly and slowly, without the frequent loading and unloading sounds of ordinary screw rod machines, let alone the sudden starting sound of piston machines, and avoids the long-term high load sound of ordinary screw rod machines.

4 Long lifespan and low cost

Long term full speed or high-speed operation is detrimental to any equipment, including air compressors. In the past, some customers used the "one in use, one backup" policy, which was used for backup purposes and to allow for mutual switching and alternating use, avoiding the adverse effects of long-term high-speed operation of a single unit on the unit; The slow and smooth operation of the variable frequency air compressor reduces the wear and tear of the unit, prolongs its service life, and extends its maintenance cycle, naturally saving shipping costs.

5 Greatly helpful for self generating users

Users who have used ordinary air compressors have a good experience in self generating electricity: the starting current of the air compressor is quite large (compared to ordinary screw machines)3Double, piston engine7When the air compressor is frequently started or loaded/unloaded, it can cause the generator to emit black smoke or even choke, and affect the normal operation of other equipment. This is a very common phenomenon. After changing the frequency conversion air compressor, it can start almost at zero load and run smoothly at a slow speed for a long time, which satisfies users from the bottom of their hearts.

6 Truly cheap

When the electricity saved in a year can recoup the investment cost of the variable frequency air compressor, that is truly cheap. Therefore, any cheap machine is expensive compared to a frequency converter.

3、 The necessity of energy-saving renovation of air compressors

Control principle:

The system consists of a complete set of air pressure variable frequency control cabinet, controller, sensor, and low-voltage electrical components. The controller is the core of the system, and according to the pressure sensorASConvert the output pressure of the air compressor into an electrical signal and input it to the controller. The controller then runs and controls the operating frequency of the air compressor frequency conversion control cabinet. If the pressure feedback from the sensor is lower than the set value, the air compressor frequency conversion control cabinet is controlled to accelerate, causing the output pipe network pressure to rise to the set value. If the air compressor frequency conversion control cabinet accelerates to the upper limit of speed but the pressure still does not reach the set value, the second air compressor will be automatically started. Similarly, the third and third air compressors will be started at once until the pressure rises to the set value. If the sensor feedback pressure is higher than the set value, the controller controls the air pressure variable frequency control cabinet to slow down, so that the output pipe network pressure drops to the set value. If the air compressor frequency conversion control cabinet decelerates to the lower limit of speed but the pressure is still higher than the set value, the second air compressor will be automatically stopped, and similarly, the third and fourth air compressors will be stopped in sequence until the pressure drops to the set value. When the gas peak is low, only one air compressor is running and in sleep mode. When the pressure drops below a certain value, it will automatically wake up.This can ensure that the gas supply system is in a constant pressure state and improve the quality of air supply from the air compressor.

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