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Saturday, May 19, 2012

How Does an Air Compressor Work?

Air compressors are essential mechanical equipment for homeowners (air conditioners and refrigerators), commercial businesses, jet engines, refining industries, manufacturing and automotive industries. In reality, air compressors have been utilized in industries in more than a century. It is a multi-talented device utilized to supply the compressed air and/or power in a specified space. It is being used in any purpose which requires air in decreased volume or increased force.

They are are obtainable in several types, which are produced to meet dissimilar requirements. Each type may vary in chilling method, compression stages, power source and lubrication. The following are three main types of air compressors:

Reciprocating (Piston) Air Compressor - uses piston in compressing air and keeping in storage tank. Based on the quantity of compression stages, this type may be single-stage or double-stage. In a single stage, one piston is utilized in compressing air, whereas in the double-stage, there are two pistons used in air compression.

Rotary Air Compressor - this is the same as the positive displacement configuration of reciprocating compressor. In this type, two rotating helical mated bolts are being used rather than pistons. Since the screws rotate towards one another, air is compacted and pushed in the storage tank.

Centrifugal Air Compressor - also called dynamic compressor is appropriate when the need for compacted air is high. In this type, high speed spinning impeller increases speed of air, which is intended towards a diffuser which converts the speed of air into force. This compressor needs more energy to manipulate than the two compressors.
The device consists of two main components - the compressing mechanism and power source. The compressing device may be piston, vane or rotating impeller, whereas, the power comes from the electric motor or some other sources of energy. The compressing mechanism, aids in compacting atmospheric air by means of energy from the source of power.

The fundamental working principle of air compressor is to compact atmospheric air, which is utilized as needed. In the course, atmospheric air draws in by intake valve; more air is pulled in a narrow space automatically by piston, vane or impeller. Since the quantity of pulled atmospheric air is added in the storage tank, the pressure is automatically raised. In simpler language, atmospheric or free air is packed together after decreasing its volume and increasing its force in same period of time. There is force setting handle which can be maneuvered per requirement of the operator. When the force increases to

Highest force setting in the tank or receiver, the pressure button shuts up the intakes of air into the compressor. When the compacted air is utilized, the level of the pressure falls. As the force drops to a low down pressure setting, the force button is switched on, hence permitting the intake air in the atmosphere. Thus, the sequence continues in the air compressor.

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Saturday, May 12, 2012

Compressed Air Can - Why Do You Need It?

Modern time is the time of electronic appliances and gadgets. In order to assure their long term use, they should not only be used with much care but also be cleaned in the best way to guarantee permanent usage. Compressed air can is a can that is used to remove the dust and dirt which settles down into closed and open areas of any type of machines and devices. The can contains gasses which have been compressed in a way that they turn into liquid. The liquid, then comes out of the can which has a nozzle to permit it passing out, and reaches out even for the hard to reach places to clean the surface of electric appliances.

It is an ideal choice to clean your equipment with cans rather than with water. Most of this electric equipment is so sensitive that if cleaned by using water, they can damage the tools and equipment. Most of these cans are available in packages which include several accessories such as refill, which will match the size of the can you are buying, nozzles and disposable dusters. Make sure that the dusters you are receiving with your purchase should have durable valves. In order to save your environment, make sure that 100% ozone friendly cans are bought and used by you.

Ideally, valves that come with the cans should rotate as much as to 360 degree at all the sides. This will assure that you can spray on all the hard to reach areas and even small hidden corners that otherwise go neglected. A nozzle is also must to check when buying your can. The nozzle will help you to spray easily to all the corners. Valves are removable in some cases while in some others they may not be. If they are removable, it is better because you can change them according to your needs and purpose. Old valves will always be needed to remove because they will be jammed at some point of use with stuck gasses in the middle, in that case a valve change will be required for sure.

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Saturday, May 5, 2012

The Use of Compressed Air in Industry

Although it is perhaps not one of the better known 'tools of the trade', it may come as a surprise to many people, how wide the use of the industrial air compressor is in a wide variety of industries.

From the health sector to mining, industrial air compressors are playing an increasingly important role in industry. Whilst this may surprise some, there are a good many reasons why this is the case.

Compressed air is easy to store and is usually contained in large tanks, taking up little room in a factory or yard. Compressed air can be especially useful, and important, in an environment that is potentially hazardous; a good example of this is in the mining industry, where the use of electrical machinery could ignite explosive gases, causing injury or even loss of life. As they expel only pure compressed air, there are no toxic fumes or other chemicals to be concerned about either, which is one of the more obvious appeals to the health sector.

Before buying an industrial air compressor, it is important to consider your actual needs, as buying too large a compressor can be an expensive move. There are a wide variety of sizes to choose from so you should select the one most appropriate to your industry, bearing in mind the amount of usage it will get.

We have covered a few examples above, of industries in which compressed air may be used, but in general terms only. Below are a few examples of actual uses of compressed air which will help to emphasise the important role it has to play in many different types of industry.

Compressed air is used for many on site demolition tools and also for compacting concrete. It is also often used to convey bricks and stones from factories.

Industrial air compressors are used to power drilling machinery such as industrial sized hammers and chisels. It is also used in the mining ventilation system, an obviously important aspect of the industry.

Compressed air is often used to transport food and grain to the silos, in which it is stored, and also provides ventilation in industrial glasshouses.

Health Industry
Many of us will be familiar with the sound of the dentist's drill; a good example of its use in the dentistry trade. It is also used in hospitals for the extraction of anaesthetic gases and also respiration systems.

Traffic Industry
Most of us will probably be aware of the role that compressed air plays in heavy goods vehicle brakes, but it is also widely used in signal systems and rail barriers too.

Micheal Richards is writing on behalf of Excel Compressors, specialists in Compressed Air Equipment and Industrial Air Compressors.

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