Cold dryer and adsorption dryer effect

Shanghai granklin group co., ltd. specializes in air compressors. Air compressor accessories of various brands; Cold dryer, suction dryer (compressed air adsorption dryer achieves drying effect through "pressure change" (pressure swing adsorption principle).

Since the ability of air to hold water vapor is inversely proportional to the pressure, a part of the dried air (called regeneration gas) is decompressed and expanded to atmospheric pressure. This pressure change makes the expanded air drier, and then allows it to flow through the desiccant layer to be regenerated without air flow (I. e. the drying tower that has absorbed enough water vapor). The dried regeneration gas absorbs the water in the desiccant, take it out of the dryer to achieve the purpose of dehumidification.

Two-tower cycle work, without heat source, continuously provide dry compressed air to the user's gas system), precision filters, gas storage tanks, etc.

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after finding the leakage point of the dryer, the leak is patchwork. According to the difference of the leakage point, for the loose leakage point of the bell mouth, only the corresponding fastening is required by the plate hand. If it is the leakage point of the copper pipe welding type, brazing is required.

Brazing leak repair is a common skill in refrigeration maintenance industry. The so-called brazing is a method of using oxygen and acetylene flame to heat low silver electrode and required repair welding part, so that the electrode and repair welding part are melted together to plug the leak point.

During brazing, the pressure of the refrigeration system should be released to zero first, then acetylene should be opened first by brazing, oxygen should be added appropriately after ignition, and the proportion of oxygen and acetylene gas should be slowly adjusted to make the flame into neutral flame-oxidation flame, and then the required welding part and silver electrode should be heated to dissolve the two together.

The specific method requires the operator to master through certain training. After the leakage point is processed, the system needs to be pressurized again to confirm whether the leakage repair welding is successful. After the leak repair is completed, the system needs to be vacuumed, and then liquid freon of specified quality is added (refer to the basic configuration table for the specific quantity). The added refrigerant should be added from the liquid adding needle valve specially reserved for the cold dryer.

For larger machines, fluoride should be added from the high-pressure filling port first. If the specified dose cannot be added at one time, it should be added slowly from the low-pressure port to the specified dose after starting up.

The difference between the cold dryer and the adsorption dryer is that the difference between the cold dryer and the suction dryer may be a world of difference. As the saying goes, "The difference is a thousand miles". Please also pay attention to the difference between the two (cold dryer and suction dryer) when purchasing.