Technology

Swan HTW air compressor

28/12/2018

SWAN HTW air compressor series are class II type, class II water cooling, compression efficiency enhancement, solid construction design, safety for use. There are l lubricating spray equipments preventing machines from erosion, minimizing oil loss, dehydration, overload, increasing long-term operation, chilling the cooling water, withstanding high ambient temperatures and reducing working temperature,and extending spanlife of machines.

Guidelines for inspection of Handsome II

31/07/2019

Inspection intervals and inspection items depend on the installation site as well as operating conditions. The table below provides the rough guidlines. Sound operation is expected if the guidelines are followed.

Thermostats for air compressor

26/12/2018

Thermostat for air compressor has function of regulating the flow of oil onto the compressor cooler to ensure that the oil temperature and air end are always stable in the allowable temperature.

How to deal with some problem of desicant air dryer (heatless type)

30/07/2019

How to deal with some problem of desicant air dryer (heatless type)

Installation and Piping of GRH3 air compressor

29/07/2019

Installation and Piping of GRH3 air compressor

How does an absorption air dryer work?

Wednesday - 26/12/2018 23:43

In recent years, we have received many questions about absorption air dryer: Working principle of absorption air dryer, how much time do you change grain moisture absorber once? What are the main components of grain moisture absorber for absorption air dryers? What cases are the absorption air dryer used?

Drying by absorption can be a physical or chemical process

nguyen ly lam viec may say khi hap thu,air dryer — air dryer

1.Phisical process:

The drying agent, called a water repellent, absorbs the moisture in the moist air and consists of two drying bottles. The first drying tank contains the drying agent and performs the drying process, while the second drying tank will be regenerated by the absorbing capacity of the drying agent (the impurity) that was used the previous time (figure 1). Drying agents are often selected such as: silicagel SiO2, dew point temperature -500C, regenerative temperature t = 1200C - 1800C.

nguyên lý làm việc của máy sấy khí hấp thụ,air dryer — air dryer

Figure 2 Is the operation cycle of the system. When the first drying vessel II operates, valve 6 opens, the compressed air fro compressor through the drying tank II, through valve 4 and into the control system. The regeneration process is carried out by heated air after passing the first air compressor and heated in the heating unit 2, through valve 7 into the I, through valve 8, then the saturated air will be taken outside. Note: During the regeneration process, depending on the capacity and manufacturer, hot air can be taken directly from the compressor. - Absorption air dryers are widely used in manufacturing factories requiring high air output and no mixing of water such as: electronic components factories, .....

2.Chemical process

Figure 3 Principle of absorption by chemical reaction The device consists of a container, which contains an absorbent (Figure 3), which absorbs by chemical process usually NaCl. Humid air will be introduced from door 1, after passing through absorbent 2, for example NaCl, the amount of water vapor in the air will combine with the absorbent and form droplets that settle down to the bottom of the flask.Then the condensate will betaken outside by valve 5. The dried air will be followed gate 4 to the control system.

Nguyễn Ngọc Phương

Minh Phu (+84 919 232 826) provides maintenance and repair services for air compressors, products: air compressor and spare parts for it, Air compressor oil