What is the difference between air compressor frequency conversion and constant frequency?

The biggest difference between inverter and fixed-frequency air conditioner is that the operating principle of the compressor is different. If the indoor does not need a lot of cold and heat, the air conditioner will run in a low-frequency state, intelligent constant temperature control, and the fixed frequency needs to be adjusted on and off of the air conditioner under artificial circumstances. The air compressor recommends Tianshui Jufeng's fixed screw air compressor.

Tianshui Jufeng's fixed screw air compressor exhaust pressure: , exhaust volume: 3 min, motor power range:

Economical operating costs, the system adopts stepless adjustment of 0-100% exhaust volume. When the gas consumption decreases, the exhaust volume decreases, and the current of the motor also decreases. When the gas is not in use, the air compressor runs empty, and the empty car will automatically stop for too long. When the gas consumption increases, the heavy vehicle is resumed.

Excellent energy-saving effect.

If you want to know more about the screw air compressor, it is recommended to consult Tianshui Jufeng. Tianshui Jufeng's business philosophy is to take customers as the guide, marketing as the center, and brand management as the operation mode to achieve diversified brand management and create the brand image of Tianshui Jufeng. Tianshui Jufeng takes "first-class, first-class, and timely service" as the goal of Tianshui Jufeng.

The easiest way for you to understand the air compressor frequency conversion and constant frequency is to compare the air conditioner, the early air conditioner is power frequency, and the air conditioner produced in the last ten years is also frequency conversion, the biggest effect is to reduce energy consumption.

The air compressor is the same, the biggest difference between frequency conversion and constant frequency is energy consumption, the air compressor of frequency conversion can save more than 20% of energy consumption compared to the power frequency, and his power-saving principle is the same as that of frequency conversion air conditioner. Among them, the more well-known brands of inverter air compressors are Dehaha, Baode, Red Wuhuan and so on, and imported brands are Kaishan, Ingersoll Rand, Atlas and so on.

1. The power frequency starting impulse current is largeThe power frequency air compressor adopts the star delta starting mode, which starts at 5-8 times the rated current, which has a large impact on the power grid, which is easy to cause the instability of the power grid and threaten the operation safety of other electrical equipment.

2. The waste of electric energy is different between loading and unloadingAfter the pressure of a conventional air compressor reaches the required working pressure, the pressure will continue to rise until the unloading pressure is unloaded. For example, if the air compressor only needs 6kg of pressure, it must be hit to 8kg, and then loaded when it is reduced to 6kg, so there are two wastes, one is from 8kg to 6kg, the motor is idling, resulting in serious no-load waste, and the other is the waste of differential pressure from 6kg to 8kg.

3. The pressure is unstable and the adjustment is differentThe degree of automation of the power frequency air compressor is low, and the adjustment of the output pressure is realized by the control of the loading and unloading valve and the regulating valve, and the adjustment speed is slow, the fluctuation is large, the precision is low, and the output pressure is unstable.

Precautions for the use of air compressors.

The air compressor should be parked away from steam, gas and dust. The air inlet pipe should be equipped with a filter. Once the air compressor is in place, the spacer should be wedged symmetrically.

Always keep the outside of the tank clean. It is forbidden to weld or thermally work on the gas tank. The gas storage tank should be tested once a year, and the test pressure should be times the working pressure.

Barometers and safety valves should be inspected once a year.

Operators should be specially trained, must have a comprehensive understanding of the structure, performance and function of air compressors and ancillary equipment, and be familiar with the operation and maintenance procedures. The operator should wear work clothes, and the lesbian should tuck her hair braids into the work cap. It is strictly forbidden to operate under the influence of alcohol, not to engage in things unrelated to operation, not to leave the job without authorization, and not to decide to replace the work of non-local operators without authorization.

1. The role is different

Frequency conversion is to change the frequency of power supply, so as to adjust the load, reduce power consumption, reduce loss, and extend the service life of equipment.

Power frequency refers to the rated frequency used in power generation, transmission, substation and distribution equipment, as well as industrial and civil electrical equipment in the power system, in hertz Hz.

2. The impact is different

Different frequencies have different effects on all aspects of power supply to the power grid, usually the frequency of a country's power grid is fixed, and all manufacturers of electrical equipment for this country and region must make equipment according to this frequency in order to use it normally.

The core of frequency conversion technology is the frequency converter, which realizes the automatic adjustment of the motor speed rate through the conversion of the power supply frequency, and changes the fixed grid frequency of 50Hz to the change frequency of 30-130 Hz.

3. The working principle is different

A power supply device that generates high power frequency AC voltage. The device is often used for various power frequency high voltage tests, and can also be used as an AC high voltage power supply for DC high voltage generators, impulse voltage generators, inrush current generators and excitation power supplies for series resonant devices.

The power supply voltage adaptation range reaches 142-270V, which solves the problem of affecting the work of electrical appliances due to the instability of the grid voltage. The technology of alternating current control by changing the alternating current frequency is called inverter technology.

Scope of application of frequency conversion:

1. Cable frequency conversion resonance device;

2. Generator AC withstand voltage device;

3. AC withstand voltage resonance device for electrical equipment of substation;

4. Resonant booster device for CVT inspection.

The start of the power frequency air compressor generally adopts the direct start or star-delta step-down start, which has a certain impact on the power grid. The air compressor driven by the inverter is inverter-driven, with a soft start function, and basically has no impact on the power grid.

The operation mode of power frequency air compressor is loading-unloading. The air compressor driven by the inverter can achieve constant pressure air supply according to the actual working conditions.

What is the difference between fixed frequency and variable frequency of air conditioner.

There are two kinds of air conditioners on the market, fixed frequency air conditioners and inverter air conditioners, many consumers will be very entangled when buying air conditioners, and do not know which one to choose.

What is the difference between fixed frequency and variable frequency of air conditioner.

1. Energy saving.

Because the inverter is installed inside the inverter air conditioner, the compressor does not need to be restarted frequently, so that the current becomes smaller, so it is more energy-saving than the fixed frequency air conditioner.

2. Comfort.

The inverter air conditioner can intelligently rotate according to the change of indoor temperature, so that the entire room temperature is maintained at a constant value, so that the human body feels more comfortable; The fixed-frequency air conditioner needs to be started repeatedly by the compressor to achieve a constant room temperature, which will give people the feeling of hot and cold.

3. Sound. The fixed-frequency air conditioner has to constantly restart and shut down, and the speed is high, so it will emit a lot of noise during operation. The inverter air conditioner is relatively quieter when it comes.

4. Maintenance. The internal structure of the fixed-frequency air conditioner is relatively simple, so it is also easier to maintain. The inverter air conditioner has an inverter inside, and the circuit structure is relatively more complex, and once it is damaged, it becomes more difficult to repair.

5. **High.

The fixed-frequency air conditioner is more preferential and suitable for most families, while the inverter air conditioner is relatively complex, and it is more than 1,000 yuan more than the inverter. However, inverter air conditioners are more energy-efficient, and in the long run, the cost performance is relatively high.

Second, it is better to choose inverter or fixed-frequency air conditioning.

This should be decided according to your own preferences and usage habits, inverter air conditioning is relatively energy-saving, but if you only turn on it for a short time, the superiority can not be too much reflected, and the fixed frequency is relatively real. If you are looking for room comfort, it is recommended to choose an inverter air conditioner, which is relatively quiet and has a more balanced temperature. If the air conditioner is not used very frequently, and you don't care too much about the noise of the compressor, it is recommended to choose a fixed-frequency air conditioner, which is more cost-effective and easy to maintain.

The inverter will work at a reduced speed, and the fixed-frequency one can only start and stop the compressor to work.

1. Constant frequency air conditioning: China's power grid voltage is 220 volts and 50 Hz, and the air conditioner working under this condition is called fixed frequency air conditioning. Because the power supply frequency can not be changed, the compressor speed of the traditional fixed-frequency air conditioner is basically unchanged, relying on the continuous opening and stopping of the compressor to adjust the indoor temperature, which is easy to cause the room temperature to be cold and hot between one opening and closing, and consumes more electric energy.

2. The host of the inverter air conditioner is automatically continuously changed, and it can automatically provide the required amount of cold (heat) according to the room conditions; When the indoor temperature reaches 2 to the expected value, the air withering host will operate at a constant speed that can accurately maintain this temperature to achieve non-stop operation, so as to ensure the stability of the ambient temperature. The following focuses on the advantages, purchase, installation and use of inverter air conditioners.

3. Difference: In fact, the big difference between inverter and fixed-frequency air conditioner is that the application principle of the product in the compressor is different. If the compressor of the inverter product can be moderately adjusted in the case of long-term operation, if the indoor does not need a lot of cold and heat, the air conditioner will run in a low-frequency state, intelligent constant temperature control, and the fixed-frequency product needs to be adjusted on and off the cold and hot of the air conditioner under artificial circumstances.

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The inverter air compressor does not use the inverter, which will have a few impacts; Waste of energy: The use of a fixed frequency motor to start and stop directly will produce a large current impulse and starting current, resulting in a waste of energy. Loud noise:

The shock and vibration caused by the moment of start-up can cause loud noise, which can affect the surrounding environment and staff. High maintenance cost: the fixed frequency motor starts and stops a lot, which is easy to damage the mechanical parts of the motor and increase the maintenance cost.

Unstable air pressure: The output power of the motor with a fixed frequency is uncontrollable, and the stable control of air pressure cannot be realized, which affects the subsequent treatment and use of liquid gas.

There is a certain difference between the special inverter for air compressor and the ordinary inverter. The special inverter for air compressor generally has the following characteristics:

It can adapt to high load and high temperature environment, and can ensure the stable operation of the air compressor for a long time.

With higher accuracy and faster response speed, it can better control the operating status of the compressor.

With stricter protection measures, it can effectively protect the motor and mechanical parts of the compressor.

It has higher reliability and stability, and can meet the needs of long-term continuous operation of air compressors.

The ordinary inverter may not be able to meet the special needs of the air compressor, so it is necessary to choose according to the actual situation when choosing the inverter.

Summary. Hello, Know-it-all has inquired for you: this one, generally speaking, it should be their scope of work is different.

The power frequency driven air compressor can only work in one exhaust volume, and the inverter air compressor can work in a wide range of exhaust volume.

That's the answer you're looking for

That's how it should be. The above is my consultation on this time, if there is anything unclear, you can communicate again, I hope it will be helpful to you

The difference between power frequency and frequency conversion of air compressor.

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Hello, Know-it-all has inquired for you: this one, generally speaking, it should be their scope of work is different. The power frequency driven air compressor can only work in one exhaust volume, and the inverter air compressor can work in a wide range of exhaust volume.

That's the answer you're looking for, and it should look like this. The above is my consultation on this time, if there is anything unclear, you can communicate again, I hope it will be helpful to you

The air compressor can be divided into power frequency air compressor and frequency conversion air compressor, power frequency air compressor is also called fixed frequency air compressor, frequency conversion machine can have permanent magnet frequency conversion air compressor and alternating current frequency conversion machine, generally below 75kw containing 75kw is permanent magnet frequency conversion air compressor, 90kw containing more than 90kw are used AC frequency conversion machine.