Heat tube arrangement for heating of liquid, comprises inner tube which is made of quartz, where outer tube, made of quartz, is arranged outside inner tube, and gap is formed between two tubes
摘要
<p>The heat tube arrangement (1) comprises an inner tube (113) which is made of quartz. An outer tube (123), made of quartz, is arranged outside the inner tube. A gap (A) is formed between the two tubes. Two sides of the inner tube are closed by similar fastener (124). The fasteners are made of ceramic material. An entry (121) is provided at the bottom level and an outlet (122) is provided at the top level.</p>
