热交换器的密封风机以确保没有原烟气泄漏到环境中。
The GGH seal air fan ensures zero leakage of the raw gas to the environment.
密封风机能使空气达到设定的压力，此压力应高于烟气在烟道中的运行压力。
The seal air fans deliver a design pressure that is above the operating pressure in the flue work.
在皮带轮同电机机壳端盖之间保留供密封风道用的密封板穿过的电机轴空隙位。
A motor shaft gap used for a sealing plate for a seal air channel is left between the belt pulley and the end cover of the motor shell.
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