炉胆 meaning in English

circular furnace
flame tube
flue
furnace pipe
internal furnace

It is easy - maintaining and effective by applying separated design on smoothing spout and inside of stove
平波喷口，内炉胆采用分离式设计，保养简便，效率高。
To collocate passage of leading airflow , force gas - cooling , so the current is strong and uniform , cooling rate is very high
炉胆立体空间上均匀布置鼠笼状加热元件，加热均匀性好。
The product adopts the infalling through system on the structure of boiler pipe line , if equips safely valve an will stop working automatically in case hyperthermal , super - pressure and low water lever
安全采用水管贯流式炉胆结构，并配备安全阀，温度过热，水位过低，压力过高等四重保护，绝对安全可靠。