Analysis of heat source of electronic shelter system

The heat dissipation and cooling measures of the electronic shelter system include: providing air intake and exhaust vents in the equipment compartment to provide the fresh air requirements of the cabin personnel and heat exchange inside and outside the cabin. Open the air inlet mesh on the front panel of the high-frequency equipment, and install the exhaust fan at the corresponding position on the rear panel of the equipment to force air-cool the high-temperature components such as power amplifier and power supply. The left and right doors of the generator cabin are equipped with shutters, and the exhaust fan is provided on the rear wall of the cabin to discharge the heat generated by the generator. Heat insulation material is wound on the surface of the smoke pipe, and heat insulation material is attached to the inner wall of the generator cabin. An integral air conditioner is installed on the front wall of the square cabin, and the supply air duct is arranged to the equipment cabin and the accessory cabin, but separated from the generator cabin.

Heat source analysis and heat problems. According to the characteristics of the shelter and the basic theory of heat transfer, the three types of heat transfer in the shelter are introduced below. Heat conduction inside the conductive cabin includes heat transfer between components and printed boards, devices and installation structural parts, equipment and cabinets; heat transfer caused by temperature difference between the inside and outside of the equipment and inside and outside of the cabin; heat transfer caused by direct contact with other objects . Convection heat exchange inside the cabin includes forced air cooling of the equipment, exchange of air inside and outside the cabin, heat exchange inside and outside the cabin of the air conditioner, and other heat exchanges caused by air flowing over a fixed surface and different temperatures. Radiative heat transfer inside the shelter includes radiative heat transfer between the equipment due to different temperatures. In addition, the shelter's bulkhead is absorbed by solar radiation and the temperature of the bulkhead is higher than the air temperature.

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