Intelligent Dry Air Generator, specially designed for large power equipment such as transformers and reactors, provides high-purity dry air with a dew point as low as -60℃~-70℃ during installation and maintenance. It can replace traditional drying methods such as hot oil circulation, nitrogen supplementation, and vacuum drying, and is more efficient, economical, safe, and environmentally friendly.
Instructions:
<1>, When taking the instrument out of the packaging box, please check whether the accessories and warranty card are complete.
<2>, Check the appearance and interior of the instrument for any serious damage caused by transportation or other abnormalities.
<3>, Preparation before startup and connection:
(1) Use the "filter" from the accessories to replace the sealing plug on the "air inlet" port on the back panel of the instrument.
(2) Tighten the sealing cap on the "air outlet" port on the back panel to ensure no air leakage.
(3) Reliably ground the grounding terminal (middle piece) of the instrument power cord and the chassis shell.
(4) Connect the power supply, turn on the switch, and the instrument starts working. At this time, the output pressure gauge pointer gradually rises to 0.4 Mpa (set at the factory). After a few minutes, the compressor stops working (set internally). Then loosen the sealing nut on the air output A slightly to allow some exhaust. Soon, the compressor will automatically start. During the repeated cycle of compressor start-stop-start, the pressure gauge should always remain at 0.4Mpa, indicating that the instrument is normal. (When the exhaust volume exceeds the rated value, the pressure gauge will not stabilize at 0.4Mpa).
(5) During the start-stop cycle of the compressor, it will automatically discharge some water each time it stops, but this cannot completely replace manual drainage, so manual drainage is still required frequently.
(6) After the above is normal, turn off the power, remove the pressure cap on the air outlet, connect the instrument with a pipe of appropriate outer diameter, and ensure a sealed and leak-free connection.
(7) For subsequent operation, simply turn on the power switch.
(8) If only one output is used, seal the other outlet with a blind cap.
Precautions:
1. Since the compressor is an inductive load, the instantaneous current during power on/off is several times higher than normal operation, making it easier to blow fuses. An 8A fuse should be used.
2. If the compressor does not start during operation and the thermal protection relay activates, it indicates that the compressor temperature is too high. It will automatically return to normal after cooling.
3. To avoid excessive water accumulation in the machine affecting air purity, press the drain switch for a few seconds before each shutdown. (You can connect the drain outlet to a plastic bottle to prevent water splashing). Drain at least once a day.
4. Observe the condition of the color-changing silica gel through the observation window. Users can replace the silica gel with new one or perform drying treatment as needed.
5. To ensure gas purity, the activated carbon needs to be replaced every 1000 hours of operation (activated carbon is 20-40 mesh, pencil lead type).
6. Since the compressor operates in an open-circuit mode, lubricating oil will be discharged with water, causing consumption. Therefore, after one year of use, add lubricating oil to the compressor appropriately. The oil filling port is next to the compressor outlet (or can be added from the inlet). It is recommended to add 200 grams of No. 18 refrigeration oil.
7. The inlet filter needs regular cleaning (the cycle depends on indoor dust conditions, and ultrasonic cleaning can be used) to maintain smooth air intake. Otherwise, it may cause increased compressor workload and heat generation. If the temperature is too high, overheating protection may trigger and cause shutdown.
Applications and Functions:
Intelligent Dry Air Generator, specially designed for large power equipment such as transformers and reactors, provides high-purity dry air with a dew point as low as -60℃~-70℃ during installation and maintenance. It can replace traditional drying methods such as hot oil circulation, nitrogen supplementation, and vacuum drying, and is more efficient, economical, safe, and environmentally friendly.
Intelligent Dry Air Generator, during power equipment installation and maintenance, is not affected by changes in external climatic conditions. Especially for overnight operations, simply seal the flanges and fill with dry air to 0.02-0.03Mpa. There is no need for oil injection, nitrogen supplementation, or vacuum pumping. Power equipment such as transformers and reactors will not be dampened, greatly reducing workload and achieving the effect of shortening construction periods and improving installation and maintenance quality.
It is also suitable for air drying and circulating drying in warehouses, packaging, electronics, pharmaceuticals, and other industries. It is also applicable for drying nitrogen, hydrogen in generator sets, and SF6 equipment.
Replaces traditional drying methods, efficient, economical, safe, and environmentally friendly. It integrates air compression, cold drying, and adsorption into one unit and is freely movable.
Product Principle:
Atmospheric air enters the air storage tank through the air compressor. Most of the moisture is compressed and liquefied and discharged through the drain valve, achieving the first drying of the air. Then it enters the refrigerated dryer, where water vapor is condensed into water, achieving the second drying. Then it enters the adsorption dryer for the third drying, adsorbing the remaining trace moisture. Finally, it passes through a high-precision air filter and is delivered to the equipment requiring dry gas.
Performance and Features:
It mainly consists of four parts: the air source system, refrigeration drying system, adsorption drying system, and electrical control system, forming a mobile high-purity dry air generating device.
Air source system composition: It consists of an air dust filter, an oil-free air pump (or screw-type oil-free air compressor), a radiator (air-cooled), an air-water separator, and filters, outputting clean and oil-free gas.
Refrigeration drying system composition: This device mainly adopts imported fully sealed high-temperature compression refrigeration units, with stable and reliable performance, capable of obtaining greater cooling capacity. The system configuration includes imported fully sealed compressor units, air heat exchangers, evaporators, air-water separators, and fine filters. During the refrigeration process, R22 refrigerant first passes through the fully sealed high-temperature compression refrigeration compressor, cooler, desiccant, solenoid valve, and finally returns to the refrigeration compressor through the evaporator, obtaining a low-temperature environment of 0-5℃ inside the evaporator.
Electrical control: The main control electrical parts adopt Schneider Electric; the overall electrical performance of the machine is stable, safe, and reliable.
