| 摘要 |
A steam flow meter provided with a steam flow rate detecting device and a steam pressure and temperature detecting device. In order to accurately maintain the heating temperature of the material to be heated without provision of any further measuring device, and detect a change in the efficiency of heat transmission of the steam heating apparatus with a low-priced and simple construction, the flow meter is further provided with a device for detecting the temperature of the material to be heated and an arithmetic unit which connects the material temperature detecting device, the steam flow rate detecting device and the steam pressure and temperature detecting device, whereby the efficiency of the heat transmission of the apparatus to be measured is calculated from the temperature of the material measured by the material temperature detecting device and from the quantity of heat of the steam which has passed through calculated on the basis of the signals from the steam flow rate detecting device and the steam pressure and temperature detecting device.
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