| 摘要 |
PROBLEM TO BE SOLVED: To provide a steam heating device which can evenly heat an object to be heated by preventing the pressure fluctuation, namely, temperature fluctuation in its heating section. SOLUTION: A steam ejector 6 is connected to a pipeline 8 branched from a steam supplying pipe 3 and the suction chamber 7 of the ejector 6 is connected to the exhaust port 21 of a condensate recovering device 16. A control valve 10 is provided on the entrance side of the ejector 6 and connected to a steam pressure sensor 11 attached to the steam supplying pipe 3. The pressure, namely, temperature of steam in a jacket section 2 can be controlled with accuracy by controlling the suction force of the ejector 6 by controlling the opening/ closing of the control value 10 by means of the sensor 11. Therefore, the uneven heating of an object to be heated can be prevented.
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