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全固态发射机进入世界市场已近30年,它以寿命长、停播率低、维护量小、工作稳定可靠而获得用户的青睐。全固态电视发射机的冷却系统目前主要采用两种方式:传统的风冷方式和最近几年发展比较迅速的液冷方式。采用风冷方式发射机的冷却系统经济实用,在环境较好的地区使用可靠性高,但风冷方式有其固有的缺点:1.噪声大。尤其是大功率风机在运行时和气流通过功放单元时都会产生较大的噪
All-solid-state transmitters have been in the world market for almost 30 years. They are favored by users with long life, low stop-broadcast rate, small maintenance, and stable and reliable operation. At present, the cooling system of all-solid-state television transmitter mainly adopts two methods: the traditional air-cooling method and the relatively rapid liquid-cooling method developed in recent years. The cooling system using air-cooled transmitter is economical and practical, and the use of high-reliability in the better environment, but the air-cooled mode has its inherent disadvantages: 1. The noise is large. In particular, high-power fans in operation and airflow through the amplifier unit will have a greater noise