| 摘要 |
<p>PURPOSE:To eliminate any outside piping in the structure and to make it pos sible to carry out a smooth and positive heat receiving effect of a heat medium liquid at the time of a strong heat operation by providing an operating cock connecting or disconnecting an outside passage or an inside passage with or from each other. CONSTITUTION:An operating cock 20 fitted in a position of an intermediate height of the front surface of an outer cylinder 12 is made of an opening and closing cock in which the opening and closing operation angle of a handle 20a is 90 deg.. Further, by manipulating the opening and closing of the cock 20 an effect of selectively connecting or disconnecting an inside passage 14 and an outside passage 15 with or from each other is performed. Under a strong heat operating condition, a flow path system of the heat medium liquid flows through a route of inlet pipe 4 inside passage communicating opening 13 a communicating opening 13a outside passage 15 outlet pipe 7, whereby the heat receiving area of the heat medium liquid covers a wide area of the entire part of an inner cylinder 9 forming an exhaust air smoke passage. There fore, the temperature of the heat medium liquid sucked up to the outer part of the outlet pipe 7 becomes sufficiently high.</p> |
