How to save electricity for air compressor inverter controller
The phenomenon of "big horse-drawn carts" of air compressors is very common. It has two reasons:
First, in the selection stage, the air compressors selected by the engineers are often higher than the maximum demand of the drive load.
Second, the load applied by the air compressor is originally changed, and the size of the selected air compressor must meet the maximum load. In fact, the maximum load only appears intermittently, and the load at other times is much smaller.
Let’s look at its results and performance:
The air consumption of most factories is constantly changing. When the consumption decreases, the air pressure starts to rise, and vice versa. This phenomenon in turn proves two things:
First, the capacity of the air compressor must be greater than the consumption.
The low pressure setting of the pressure switch must meet the pressure value required by the factory.
Second, the low pressure setting of the pressure switch must meet the pressure value required by the factory.
A. Two control methods of traditional air compressor
(1) Empty and heavy vehicle controlled air compressor
Empty and heavy vehicle control air compressors are used as empty and heavy vehicles according to the high and low pressure settings of the pressure switch. The exhaust air volume is 100% when the vehicle is heavy, and 0% when the vehicle is empty, so there are two wastes:
----The power consumption when the compressor is empty.
----Power consumption exceeding the low voltage setting value.
When the compressor in the empty and heavy operation mode is operating at 50% of the air consumption, the compressor will often be in heavy vehicles (providing maximum output and using maximum current) and empty vehicles (no output air volume but consumes about 40% current) Switch between, so that 72% of the full load power is consumed but only 50% of the output air volume is provided. The conclusion is that nearly 30% of the operating efficiency is lost. (Not considering the overpressure part)
(1) Capacity strip control type air compressor
When the compressor with air intake throttling mode is operating at 50% of the air consumption, compression will limit 50% of the air to enter the compressor, which consumes 85% of the full load power but only provides 50% of the output air volume. The conclusion is that nearly 40% of the operating efficiency has been lost.
Features and advantages of inverter compressors:
Provide a stable exhaust pressure, which is beneficial to improve the pass rate of products
Improve motor power factor
Reduce the starting current and reduce the impact on the grid
The compressor pressure accuracy is below 0.1 kg/cm2. The temperature difference accuracy of the ice water machine can reach 0.5 degrees or less. Note: Accuracy refers to the control accuracy of FUZZY and does not include the empty vehicle upper limit setting value.
Reduce the load by reducing the speed ratio of the compressor unit, and the energy saving effect is 100%.
Reducing the speed under partial load can extend the life of the unit.
Reduce running noise and provide a good working environment.
Suitable for different types of positive displacement compressors such as reciprocating and screw type.
Transmission devices such as gears and belts can be omitted, reducing mechanical losses and costs, and increasing the reliability of the body.
The LED panel can display operating pressure, exhaust temperature and set pressure. The displayed value can be set via internal parameters.
The set pressure (compressor) or temperature (ice water machine) can be adjusted on the panel according to system requirements.
Use the inherent soft starting characteristics of the inverter, without starting high current.
When multiple units are in operation, only one or more of them can be installed to fully monitor the pressure of the system (compressor)
The special load reduction function provides the safest and most flexible operation mode.
Reduce energy consumption and production costs, improve product competitiveness, and at the same time enhance corporate image, gain and return to society at the same time, benefit the country and the people.
★Operation analysis table of power saving benefits★
Number of compressors one set two sets three sets
Load ratio 80% 14% 25% 37%
Load ratio 70% 18% 33% 47%
Take 55KW unit as an example, load and unload 6-8Kg/cm2 minimum pipe network pressure 6.2Kg/cm2 Operation: 250 days/year 24 hours/day One of them has no load and load ratio is 70%:
Independent operation of one unit: annual electricity saving 55860Kw/h
Grid-connected operation of two units: annual electricity saving 61831Kw/h
Three units are connected to the grid for operation: annual electricity saving 66681Kw/h
Through the above analysis, manufacturers can generally recover their investment within two years through frequency conversion transformation of air compressors.
How to save electricity for air compressor inverter controller
Recent related posts
-
09/16/2020
How to save electricity for air compressor inverter controller
The phenomenon of "big horse-drawn carts" of air compressors is very common. It has two reasons: First, in the selection stage, the air compressors selected by the engineers are often higher than the maximum demand of the drive load.
-
09/16/2020
Fiery eyes
Distinguishing authenticity How to defend fake oil Counterfeit Atlas, and some are like industrial white oil. Between 800-2000 hours, it will coke and become severely carbonized if it is not resistant to high temperature. Unscrupulous merchants simply lie to customers:
-
09/16/2020
Consultation on solving high temperature problems of air compressors
For customers, if there is an air compressor high temperature problem, they should consult the relevant manufacturer's after-sales service department as soon as possible to determine whether they need to be shut down for repairs, and prevent safety accidents. For air compressor maintenance personnel, it is particularly important to understand how to solve the high temperature problem of the air compressor.
-
09/16/2020
Compression purpose and method of compressed air theory
The basic purpose of gas compression is to deliver gas at a pressure higher than the original pressure. The original pressure level may vary from a very low absolute pressure (a few thousandths of a kilogram) to several thousand kilograms;
-
09/16/2020
Check Valve PrincipleCheck Valve StandardCheck Valve Features
Check Valve Principle|Check Valve Standard|Check Valve Features|Check Valve Function|Check Valve Size Check valve is also called one-way valve or check valve, its function is to prevent the medium in the pipeline from flowing back. The bottom valve of the pump to close the water is also a check valve.
-
09/16/2020
Atlas, Copco creates new industry energy efficiency standards
Atlas Copco focuses its work on eliminating production downtime and minimizing the unit production interest of compressed air. Full-featured Full-featur products, integrated variable frequency drive VSD and customized solutions fully meet or even exceed customer requirements for reliability, air quality and energy efficiency.
-
09/16/2020
Application skills of air compressor using oil and gas separator
Abstract: The application technical requirements of the oil-gas separation core used in air compressors, and the problems that occur during the use of the oil-gas separation core are analyzed, and the matters to be noted before installation.
-
09/16/2020
Analysis of Frequency Conversion Technology in the Application of Air Compressor System
1. Operation principle and analysis of air compressor As far as okmarts.com is concerned, the main equipment currently being renovated is basically a traditional screw air compressor. The air compressor is a load with a large moment of inertia.
-
09/16/2020
American Cook Compression--Professional supply of seals and valves for reciprocating piston compressors
The company has a long history of 120 years, specializing in the production of pressure reducing rings, packing rings, oil scrapers, piston rings, support rings, valves and other sealing products in reciprocating compressors.
-
09/16/2020
Air compressor sharing air storage method
When multiple pneumatic tools are used at the same time, multiple air compressors need to be used for combined air supply. In order to reduce the pulsation of the air supply pressure and prevent the air pressure from falling instantaneously when multiple pneumatic tools are started at the same time on the working surface
Customers frequently viewed
IWAYA DENKI Water Pump 25CJT0752
Panasonic Servo Motor MHMF022L1V2M
Honeywell Solenoid Valve VE4025B1045
ROTEN Mechanical Seal 8E5K-22-X
DHF Tool for Metal Cutting UXR1030
Tecumseh Compressor AVB5542EXH
Banner Light Curtain LS2LR30-1350Q8
TOWA SEIDEN Switch HL-400HHGS