| 摘要 |
<p>IN A HEATING DEVICE IT IS KNOWN TO HAVE A HEATING ELEMENT SUPPLYING HEAT TO BE USED ON ONE SIDE OF THE HEATING ELEMENT. IN THIS INVENTION A PARABOLIC HEAT REFLECTOR IS PROVIDED WITH A HEAT COLLECTOR IN THE FOCUS OF THE REFLECTOR AND THE HEAT COLLECTOR ITSELF IS CONNECTED WITH THE HEATING ELEMENT BY A HEAT CONDUCTOR. THE REFLECTOR REDUCES THE HEAT LOSSES RESULTING OF RADIATION AND THE HEAT COLLECTOR DELIVERS HEAT TO THE HEATING ELEMENT WHICH RESULTS IN A BIGGER DIFFERENCE BETWEEN THE TEMPERATURES OF THE SUBSTANCE TO BE HEATED AND THE HEATING ELEMENT ITSELF. BECAUSE OF THE HEAT BEING CONDUCTED AWAY FROM THE HEAT COLLECTOR TO THE HEATING ELEMENT THE COLLECTOR ITSELF IS COOLED WHICH REDUCES THE RADIATION OF HEAT FROM THE COLLECTOR TO THE REFLECTOR. TO REDUCE HEAT LOSSES BECAUSE OF HEAT CONDUCTION THROUGH THE REFLECTOR THE REFLECTOR MAY BE INSULATED ON ITS OUTSIDE.</p> |
