Changshu air compressor | basic knowledge of adsorption dryer

Changshu air compressor|Basic knowledge of adsorption dryer
- r.. . b. . New
Basic knowledge of adsorption dryer
- r.. . b. . New① What is adsorption? How does adsorption occur?
- r.. . b. . New adsorption is a phenomenon in which the concentration of a substance automatically changes at the interface between two phases.
- r.. . b. . New
New All solids have varying degrees of ability to adsorb molecules, atoms, or ions of the surrounding medium to their surfaces. From a thermodynamic point of view, the reason why a solid surface can adsorb other media is because the energy on the solid surface is physically called surface free enthalpy, which has the tendency to adsorb other substances to reduce its own surface energy.
- r.. . b. . New②What is an adsorbent? What is an adsorbate?
- r.. . b. . New Substances that have obvious adsorption effects on specific media are called adsorbents. The adsorbed substance is called an adsorbate. Under certain conditions, the larger the surface area of the adsorbent, the stronger its adsorption capacity. Therefore, in order to improve the adsorption capacity of the adsorbent, it is necessary to increase the adsorption
- r.. . b. . New ③What is a compressed air adsorption dryer? What are the characteristics?
- r.. . b. . The new compressed air dryer is a compressed air drying equipment made by taking advantage of the adsorbent's large adsorption capacity for water vapor in the air at room temperature. The characteristic is that the compressed air processed by the adsorption dryer has a lower dew point and less water content, but consumes more energy.
- r.. . b. . What are the commonly used adsorbents in the new ④ adsorption dryer?
- r.. . b. . The newly commonly used adsorbents are: silica gel, activated alumina, and molecular sieves.
- r.. . b. . What types of new ⑤ adsorption dryers are there?
3 - r.. . . Newly classified according to the adsorbent regeneration method, it can be mainly divided into two types: heatless regeneration adsorption dryer and heat regeneration adsorption dryer. Since the heatless adsorption dryer works according to isothermal adsorption, also known as pressure swing adsorption, the thermal adsorption dryer works according to isobaric adsorption, also known as temperature swing adsorption. In actual use, there is also a micro-thermal dryer. From a formal point of view, the micro-thermal regeneration dryer also heats the regeneration gas, but because the regeneration gas it uses comes from drying materials with very low moisture content, Air, so it also belongs to the pressure swing adsorption dryer.
- r.. . b. . What role does the new ⑥ silencer play in the adsorption dryer?
- r.. . b. . The function of the new silencer is to reduce the noise discharged from the regeneration gas of the adsorption dryer. Since the regenerated exhaust gas has a certain pressure when it is discharged, the exhaust speed is relatively fast, which will cause gas vibration and produce strong exhaust noise, which can generally reach
~
. According to relevant regulations, when the exhaust noise is greater than
, noise reduction measures are required. In adsorption dryers, since the regeneration exhaust gas contains a large amount of dust and water vapor, condensation water will accumulate when the temperature is suitable, which can easily cause the muffler to become clogged. Therefore, the working conditions of the silencer in the adsorption dryer are very harsh, and it is a vulnerable part of the adsorption dryer.
- r.. . b. . What role does the orifice of the new ⑦ regeneration valve play in the adsorption dryer?
. New' ' - . - - The heatless adsorption dryer relies on its own dry air to desorb the adsorbent. The regeneration gas passes through the regeneration valve and then enters the regeneration tower. The orifice plays the following functions: ① Reduce the regeneration gas pressure to a state close to atmospheric pressure. ② Make the regeneration gas pressure at least greater than the adsorption bed resistance to ensure that the desorbed water vapor can be smoothly discharged from the tower. ③ Make the regeneration gas continuously flow through the adsorption bed for a specified time, and may be close to saturation before leaving the tower.
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