Industrial Air Dehumidifier: advice on choice and feedback

In domestic economy, air dehumidifiers are usually used to regulate the microclimate parameters. The opposite of this technique is the humidifier, which increases the moisture content in the air. In the production and in the construction sector, this equipment has several other tasks. Most often an industrial air dryer is used as an integral part of the pneumatic infrastructure. The unit also removes excess moisture, but only in compressed air, which is thus prepared for delivery to the compressor.

How does the industrial dehumidifier work?

In industry, the plants that use refrigerant as the active medium are the most common. The basis of the functional system is the heat exchanger. The air streams entering the device are first cooled, after which the condensate drops out. Otherwise, the principle of the air dryer is the same as refrigerator equipment. The moisture formed is discharged through a drainage tube into a special reservoir. At the same time, there may be different structural designs of the storage part in terms of the capacity of the collection vessel. It is most rational to organize a tap directly into the sewer, but such an option is not available at every enterprise.

In turn, the cooled air is also separated from moisture and sent to a second, warm heat exchanger, where the heating takes place. As a result, the air dryer for the compressor produces an optimal environment for the environment, ready for further use in the pneumatic system.

Basic criteria for choosing a dehumidifier

Fundamentally important are two characteristics of such units - power and performance. The power potential of the equipment varies between 330-2000 watts. The selection of the unit for this indicator depends entirely on the capacities of the particular enterprise. But it should be borne in mind that the majority of modern industrial-type dehydrators operate on a 380 V electric mains.

No less significant and performance indicators. This parameter determines how much of the working environment will be provided by the air dehumidifier for the compressor in a minute. On average, the productivity is from 1,000 to 20,000 l / min. In the choice of equipment for this value should be based on the area of the room. The more it is, the more efficient the desiccant should be in terms of producing air volumes.

Types of dehumidifiers

As a rule, two types of such units are distinguished. The first and most popular type of industrial dehumidifiers are the mentioned models with a refrigeration principle of operation. Absorption units are less common, but they can also be effective under certain operating conditions. Their main feature is the absence of moisture-evacuating channel. If, in a traditional design, an industrial air dryer collects condensate in a special container or directly drains it to the sewage system, the absorption modifications literally absorb moisture.

For this function, a filler is provided in the equipment arrangement, to which the concentrated moisture is directed. As this substance, salt absorbing agents and self-reducing elements such as zeolite or silica gel are used.

Reviews of manufacturers

The segment is rather narrow, so the choice of manufacturers is modest. The greatest interest on the part of professionals is caused by the equipment of Ekomak and Fiac. Models of the first brand show themselves well in the work with compressor stations. Ekomak for the most part offers refrigeration-type designs, so experienced users recommend initially to think through the systems of moisture removal. In general, the industrial air dehumidifier of this brand shows itself well in operation at medium capacities, ensuring the stability of the main function.

Fiac's models give a positive impression thanks to a combination of high performance and ergonomics. In particular, the installation of this brand is distinguished by its ease of operation and undemanding in maintenance. Most importantly, some modifications are equipped with an effective noise isolation system, so they can be used in laboratories, office buildings, etc.

What else to consider when choosing?

By means of special calculations, it is possible to make an optimum choice of dehumidifier suitable for specific application requirements. But, as practice shows, in the course of operation, new requests to the characteristics of equipment may arise. In particular, work in conditions of high humidity negatively affects the condition of the surfaces of many units. As a result, after months of use, maintenance personnel perform repairs to air dehumidifiers that have been exposed to corrosion. Therefore, you should first refer to those models that have a waterproof coating on the case.

Also, experienced users recommend not to save on automation and control systems. Modern models of dehumidifiers are increasingly receiving the option of visual control of air pressure, and are also provided by automatic liquid drainage systems. This option allows you to rationally use the resource equipment, and reducing the cost of energy.

Conclusion

The need to equip production facilities with air dehumidifiers can not be underestimated. The reliability of pneumatic networks depends on the quality of the operation of such systems, which often fail because of the consumption of air with unsatisfactory characteristics. In addition, an industrial air dehumidifier is required for other purposes. Its function is also used for its intended purpose - for example, to create an optimal microclimate in a large room or to get rid of excess moisture of construction materials. In this case, for each task should be selected suitable for technical and design parameters of the desiccant.