Rotary compressor: description and reviews

2024 Author: Henry Conors | [email protected]. Last modified: 2024-02-12 02:46

Currently, compressors have gained wide popularity. They provide overwhelming assistance in solving everyday industrial or domestic problems.

Every industrial plant uses compressors to reduce costs and energy costs. There are also many tasks in everyday life, the solution of which is simplified by the compressor.

Types of tasks

For example, it can help inflate game balls and other inflatables. Also on the farm it can be useful for spraying water or solutions on plants, cleaning clogged pipeline communications. The rotary compressor can be useful in almost any branch of human activity. The fulfillment of the assigned tasks depends on its reliability and quality. Therefore, it is important to choose a good compressor correctly, as well as to find out what you should pay attention to first of all when buying.

Compressors

Compressor is a special device for supplying pressurized air to pneumatic tools. At present, it is widely used in any human activity, even in art.

Compressorequipment - a device that produces air with excess pressure. The power and force of pressure depend on the type and type of device.

Rotary compressor, rotary-vane, rotary-screw, rotary-piston, rotary-air, rotary-vane compressors are especially widespread. Each of them has unique characteristics and parameters.

Types of compressors

Rotary compressor is a device with a compressing rotating element. It is subdivided into screw, rotary-lamellar, liquid-annular. The market is distinguished by a wide choice, providing rotary compressors. The device and their design are almost the same or very similar for almost all manufacturers. The pressure in them decreases due to the rotation of the screws.

Rotary vane compressor is a design in which the pressure is reduced by a large round rotor. It rotates in a special round shape. The rotor also has holes for rectangular blades. The design uses the principle of centrifugal force, rotating, the blades are pressed against the walls of the rotor.

Rotary screw compressor has leading and driven screw rotors. The main advantages of this compressor are high reliability, compact size, low metal consumption. It provides a high speed of rotation of the rotors due to the absence of holes for plug-in elements.

Rotary piston compressors were the first compressors of their kind. But this does not prevent to this day being verypopular in industrial enterprises. This design is very similar to the design of an internal combustion engine. The rotating element drives the piston, thereby compressing the air, lowering its pressure in several planes. The most trivial compressors have a single piston that is not capable of creating a lot of pressure.

Rotary vane compressor – This compressor is direct driven. It has a number of advantages: high reliability, high performance, durability. The generated pressure of such compressors does not exceed 10 bar, has a small rotational speed, moderate power.

The rotary air conditioner compressor is based on the rotary compressor. In this case, small compressors are used. They are compact and make little or no noise.

Compressor classification

Rotary air compressor - this compressor compresses air with a pressure of 1.5 megapascals.
The gas compressor is used for mixtures and gases, except for hydrogen, as well as oxygen.
Circular - thanks to their device, they are able to provide constant circulation in a closed room.
Multifunctional special - based on a rotary type compressor.

Advantages and comparative advantages over electric tools

Electric tools do not actually have a motor. Therefore, it consumes more energy. A rotary BP-type compressor, unlike electrics, is an order of magnitude safer.

Compressor is a universal device that can be connected to other instruments. Also, the compressor has become more widespread, which means consumer approval.

Advantages of rotary compressors

The rotary compressor has a number of advantages:

Simple design with few parts.
Relatively small size, compact.
Reliable in use, basic preventive maintenance.
Low final gas-dynamic losses due to the absence of valves.

Types of rotary compressors

The simplest rotary compressor is oil-free. This design does not have a lubrication design, so it does not require the use of oils. This technological solution reduces the cost of lubricants and maintenance, allows for a minimum number of scheduled maintenance, as well as obtaining compressed air without oil impurities and additives.

A more expensive alternative is a rotary oil compressor with a direct drive. Their design provides for a lubrication system. And the drive and compressor head are connected by one shaft, which makes the transmission direct. An aluminum radiator is used to solve the cooling problem.

Similar to a piston diaphragm compressor. It differs from the piston by the presence of a membrane working surface. This membrane is made of durable and reliablematerials that withstand numerous translational and rotational movements. The change in air pressure occurs due to the oscillatory movement of the membrane.

There is also a more powerful compressor - with a V-belt drive. This means that the compressor head and motor are connected with a belt. Cooling of such devices is much easier to organize, so they have a longer service life. But the only downside is the high price.

Reviews on rotary compressors

The first thing before buying, many people first go to the Internet looking for reviews about the product they are going to buy. And rightly so, as it is better to learn from the mistakes of other people, weigh all the advantages and disadvantages and purchase a quality compressor.

There are very cheap rotary compressors, the cost of which varies from 300 to 500 rubles, but such devices are enough at best for several uses. Cheap compressors quickly overheat and become unusable, do not give the desired result.

In other cases, when an original compressor was purchased, the cost of which varies from 900 to 1300 rubles, buyers in 95% of cases were satisfied with the purchase. Such devices almost do not heat up, do not fail, give excellent results when used.

Don't save on things that can become indispensable in your business. The best option would be to purchase a good, high-quality compressor that will last a long time and will please with its performance,than buying cheap ones that are almost disposable, losing nerves and precious time.

Based on a large number of reviews, you can make a list of details that you should pay attention to when choosing and buying. These include:

The compressor must have a power cable of sufficient length, in general at least 2 meters, as a cable that is too short can cause inconvenience in use.
The piston cylinder of the purchased compressor should not be made of aluminum alloys. The best choice would be stainless steel or high alloy steel.
Almost every compressor is equipped with a pressure gauge, but not every pressure gauge will be convenient. So, when using a compressor, the dial gauge will strongly deviate due to vibrations, which will create impossible conditions for the correct determination of pressure. Therefore, preference is given to digital pressure gauges.

The piston connecting rod must be installed directly on the steel shaft without adapters and plastic bushings.

Conclusion

Buying a rotary compressor is a big deal and should be taken seriously. The first thing to consider when buying a model from large and well-known manufacturers, as this will reduce the likelihood of poor quality products. Secondly, check the selected device in case of a fake. Since often simple and reliable designs of large companies are easier to fake and pass off as the original. Thirdly,choose a compressor that will suit you according to its parameters. Fourth, check the compressor for factory defects before paying. Fifth, refer to online or offline reviews of this rotary compressor model, this will help you avoid mistakes already made by someone.