What are the energy saving ways of air compressors?

1.The first way to save energy - inverter energy saving.

The inverter adjusts the power supply frequency, reduces the gas production of the compressor by reducing the speed, and makes the pressure of the gas network constant within a certain range to achieve gas production = gas consumption, so as to achieve electrical energy saving.

The replacement cost of the inverter is high, and when the gas loading rate reaches 80%, the inverter itself still has a loss of 2%-3%, which is not energy-saving at this time.

2.The second energy-saving method - permanent magnet frequency conversion energy-saving.

In the energy-saving mode of the inverter, the motor is upgraded to a permanent magnet electromechanical, and the efficiency of the motor is increased by 7%-9%, so that the energy-saving rate can be further improved on the basis of the inverter energy saving.

The ** of permanent magnet motor is about 2 times that of ordinary motors, and about twice that of frequency conversion motors, which further increases the cost.

3.The third way to save energy - unloading and shutdown to save energy.

When the air compressor is unloaded, the machine is stopped, saving the power consumption when the shutdown is stopped, the traditional air compressor (power frequency machine) starting mode Star Delta can also unload and stop, but the starting current is large (7-9 times), the motor temperature will rise instantly when starting 5-8, if the start and stop interval is short, the motor, head and contactor damage is too large to bear, so the Star Delta can not achieve frequent start and stop, and the energy saving rate is low. Dongze Energy-saving MG2C air compressor energy-saving drive all-in-one machine, no contactor design, small starting current (2-3 times), very small impact on the motor and head, it adopts microcomputer intelligent control technology, the system automatically collects the temperature, ambient temperature and customer gas consumption of the air compressor on site, scientifically controls the start and stop time according to the air compressor plus unloading operation curve, and realizes the unloading and shutdown energy saving of the air compressor under the condition of protecting the motor and the machine head and ensuring the user's safe air consumption.

As one of the general equipment in the manufacturing industry, the air compressor can effectively help enterprises save production costs by doing a good job in energy saving. So, how to make the air compressor energy-saving? Zhongke Yujie will take you to take a look!

1. Control leakage.

It is estimated that a small hole of 1mm, under a pressure of 7bar, has a leakage of about 1mm, check all the transmission pipe network and gas points, especially joints, valves, etc., and deal with the leakage points in time.

Second, pressure drop management.

Set up a pressure gauge through the pipeline section to detect the pressure, check the pressure drop of your sections in detail, check and maintain the problematic pipe network section in time, generally the air compressor outlet to the gas point, the pressure drop can not exceed 1bar, and the strict raw baby is not more than 10%, that is, the pressure drop of the cold and dry filter section is general. The factory tries to arrange the annular pipe network to balance the air pressure at each point.

3. Adjust the pressure matching of gas equipment.

Evaluate the pressure demand of the gas consuming equipment, and reduce the exhaust pressure of the air compressor as much as possible in the case of production. For every 1 bar reduction in the exhaust pressure of the air compressor, the energy saving is about 7%-10%.

Fourth, adjust the unreasonable use of gas.

According to data analysis, the electric energy utilization rate of the air compressor is only about 10%, and about 90% is converted into heat energy and lost. At the same time, the use of compressed air for routine cleaning should be resolutely eliminated.

Fifth, the use of centralized control mode.

If the number of air compressors is small, a frequency conversion air compressor can be used to regulate the pressure, and if the number is large, centralized linkage control can be used to avoid the rise of stepped exhaust pressure caused by the parameter setting of multiple air compressors.

6. Do a good job in equipment maintenance and cleaning.

Increase the heat dissipation effect of the air compressor, the exchange effect of water cooling, air cooling and other heat exchangers to keep the oil clean.

7. Waste heat of air compressor**.

**Hot water is generated from the heat of the air compressor oil system for use in other processes or auxiliary living facilities.

8. Renovation or replacement of drying system.

The waste heat of the air compressor is used for drying and dehydrating the compressed air with the waste heat of the new drying equipment, and the energy saving rate is more than 80%.

9. Energy-saving transformation of the system.

Zhongke Yujie intelligent air compressor power saver greatly reduces the starting current of the compressor through voltage regulation and soft start, so as to avoid the impact and damage caused by excessive starting current to the equipment when the compressor starts; According to the user's demand for compressed air, the motor power is accurately matched to avoid waste; At the same time, the pressure stability can also be obtained by using the gas equipment production process, which is very conducive to the control of product quality of the enterprise.

There are many ways to save energy in air compressors.

1. It can be connected to the waste heat ** device to effectively use the heat generated during the operation of the unit to achieve energy saving and emission reduction.

2. The use of frequency conversion control technology can greatly reduce power energy consumption.

3. Set the air compressor to start and stop according to the size and pressure of the actual gas consumption.

4. Check whether there is air leakage in the gas circuit of the equipment, and close the valve when the gas is not in use to reduce waste.

When investing, it is set to be inverter. And also. , according to the amount of use to determine the opening time and size of the air compressor.

How can I save energy? You asked a good question, understand the Aigao screw air compressor, you naturally understand how to save energy. If you have any questions, you can continue to find me.

The inverter was installed, but the inverter was broken and the repair cost was very high.

Air compressor is a common power equipment, is a large consumer of power in the factory, usually a large amount of heat discharged by the air compressor is directly discharged through air cooling or through the cooling tower of water cooling to the atmosphere, usually this part of the energy is wasted, the gas compression process of the air compressor can be divided into two parts: adiabatic compression and constant pressure cooling, in the process of adiabatic compression, under standard conditions, when compressed to 8 kg, the temperature of the compressed air can reach more than 260 degrees, in order to ensure its reasonable operating temperature, The air compressor continuously injects oil from the head for cooling, and the oil-gas mixture that takes away the heat is then dispersed into the atmosphere through the cooler, which can confirm that the cooling and heat dissipation of the air compressor is not only large, but also has a high temperature, and this heat can be used according to the laws of thermodynamics.

Advantages of installing air compressor waste heat**.

1 Create a new era where heat does not require energy, and there are no running costs.

2. Safe, hygienic, convenient and reliable way to take heat.

3. Improve the operation of the air compressor and improve the operation efficiency of the air compressor.

4. Heat is not affected by time, weather and season, as long as the air compressor is on, it can be heated at all times.

5. Truly achieve zero emission, and the energy saving benefits are significant.

Air compressors include large mining centrifuges, screw machines or piston machines used in ordinary factories, and so on. The consumption of additional power is also a reason for comparison

Air compressor energy saving is a systematic project, not just from a certain aspect to solve the problem

1. Leakage: pipeline and end user leakage, this amount is very large, generally the leakage of the factory after 2 years of operation can reach more than 20%, so the most effective and fast should be the leakage control, regular inspection, this process is a long-term work, need to be adhered to, can not be carried out raid;

2. End users: users need to optimize, such as gas equipment improvement, process improvement, pressure adjustment, etc., just like the principle of energy-saving lamps, the terminal must be saved, which is also relatively easy to achieve, and needs on-site workers to ponder;

3. Group control: because the user's gas consumption is not a constant flow, the number of air compressors is the number of units that meet the maximum gas load, so when the gas load is reduced, most of the air compressors are in the unloading state, which belongs to just eating and not working, this part of the electricity is very considerable, and the deployment of the number of units by using the group control system can solve this problem very well;

4. Pressure reduction: transform the original fishbone-shaped pipe network into a ring network, so that the outlet pressure can be appropriately reduced, which can also save energy;

5. Change frequency: If the gas load fluctuates particularly large and the cycle is also very frequent, the group control system should be supplemented by frequency conversion transformation, which is not only easy to allocate the number of units, but also can well control the outlet pressure, which is also conducive to the reduction of the low pressure limit;

In short, this work is a system engineering, which needs to be managed according to the actual situation and adapted to local conditions.

Aigao air engineers will answer for you, there are the following kinds of energy-saving transformation of air compressors:

Clause. 1. Frequency conversion speed regulation mode: Frequency conversion speed regulation mode is adopted to reduce the shaft power output of the air compressor motor, reduce the electric energy brought by the sudden change process of the compressor from the unloading state to the loading state, and reduce the running frequency of the motor to below the power frequency, so that the output power of the motor shaft is reduced.

Clause. 2. Centralized control mode: Centralized control mode is adopted for multiple air compressors. The number of air compressors is automatically controlled according to the gas consumption, and if the air consumption is further reduced, the air compressor with good performance will automatically shut down.

In the case of (1), the air compressor consumes electrical energy even in the case of unloading. After the transformation, the corresponding number of air compressors can be stopped, and the number of operating units can be reduced, which will undoubtedly save electricity.

Clause. 3. Waste heat**: Waste heat of the press is a very environmentally friendly energy-saving method, and it is also a highly respected energy-saving method. The waste heat of the air compressor is to transfer the heat to the cold water after heat exchange and other technical treatments, and the cold water is heated and flows into the thermal insulation storage bucket, so that the purpose of heat energy can be achieved.

You can change the permanent magnet inverter air compressor, you can monitor multiple units, you can preheat the inverter, you can add the inverter, depending on your gas use site decision.

1.The average leakage of compressed air in the factory is 20 30%, so the first thing is to control the leakage, all pneumatic tools, hoses, joints, valves, a small hole of 1 square millimeter, under a pressure of 7 bar, almost 4000 yuan a year.

2.Pressure drop treatment, set up pressure gauges in each section of the pipeline, generally air compressor outlet to the factory use point, the pressure drop can not exceed 1bar, strict or even not more than 10%, that is, the pressure drop of the cold and dry filter section is general, check the pressure drop of your sections in detail.

The problematic pipe network section machine should be inspected and maintained in a timely manner.

3.Carefully evaluate the pressure demand of gas-using equipment, and try to reduce the exhaust pressure of the air compressor under the condition of ensuring production, the cylinder of many gas-using equipment is only 3 4 bar, and a few manipulators or something are more than 6 bar. For every 1 bar lower pressure, the energy saving is about 7 10%.

4.The factory tries to arrange the annular pipe network to balance the air pressure at each point.

5.The number of air compressors is small, a variable frequency air compressor can be used to regulate the pressure, if the number is on the stage, the complete Huai grinding state can be through reasonable parameter settings, the size configuration of the lead source and the means mentioned above to achieve a good energy-saving effect.

6.Centralized linkage control of air compressors to avoid the rise of stepped exhaust pressure caused by multiple air compressor parameter settings.

7.If possible, try to reduce the inlet air temperature of the air compressor, because the internal temperature of the air compressor station is generally higher than the outside, you can consider outdoor gas collection.

8.Improve the cooling effect of the cooling water and reduce the cooling water temperature as much as possible, especially in summer.

9.Do a good job in equipment maintenance and cleaning, increase the heat dissipation effect of air compressors, and the exchange effect of heat exchangers such as water cooling and air cooling, so as to maintain oil quality.

10.Air compressor waste heat**.

11.There are also waits, such as what is related to the ** centralized control, water pump inverter, automatic start and stop of the refrigeration dryer, automatic opening and closing of the cooling water valve of the air compressor and the cooling water valve, and the investment in those things is relatively large.

It is to achieve energy saving in the compressed air system.

In the production process, the air compressor should match the working conditions in the sock selection. In the case of ensuring production, the air supply can be achieved to save energy consumption to the greatest extent. Post-treatment and other related equipment should match the whole system, do not blindly use the dryer, install filters, etc.

In the transportation link, on the one hand, the pipeline design should be reasonable. To put it simply, too many elbows will inevitably increase the pressure drop. On the other hand, consider the problem of the pipeline itself. It can be known that the use of anode alumina tubes should be considered.

In the application link, the compressed air is transported to the workshop after it is generated, and the energy-saving transformation of pneumatic components is carried out in the workshop part. Use reasonable nozzles, save energy in cylinders, and so on.

There are many aspects that can save energy, such as the cooling fan using frequency conversion control, two-pole compression, optimizing the gas production movement, condensing temperature control, host frequency conversion control, motor and movement coaxial direct connection, customized low-voltage machine, etc., but these are all means, is there energy saving in the end? How much energy savings? This has a measurement index called specific power, that is, to produce each cubic meter of compressed air, how many kilowatts of electricity (kw m3 minutes), if you want to really judge the installation of flowmeters and electronic meters, you can use software to calculate in real time, display real-time specific power, this can really judge how energy-saving your energy-saving air compressor is, and there is not clear can be asked.

Because it is small, it uses less electricity.