Method And Apparatus For Drying Under Reduced Pressure Using Microwaves
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Accused Products
Abstract
An apparatus and a method for drying under reduced pressure using microwaves. The apparatus comprises a chamber (13) for housing an object (11), a depressurizing pump (22) connected to the chamber (13) for depressurizing the inside of the chamber (13), a microwave irradiating device (12) for irradiating microwaves to the object (11) in the chamber (13), an airflow generating device for generating an airflow in the chamber (13) by introducing a gas from the outside to the inside of the chamber (13), and a control device (35) for controlling the above components. The object (11) in the chamber (13) is dried at temperatures below a deterioration temperature of the object (11) by intermittent irradiation of the microwaves under reduced pressure while the airflow is generated around the object (11).
100 Citations
22 Claims
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1-9. -9. (canceled)
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10. A method for drying under reduced pressure using microwaves, comprising:
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placing an object in a chamber connected to a depressurizing pump; and
irradiating the microwaves to the object while maintaining an inside of the chamber under reduced pressure, wherein a) the inside of the chamber is depressurized to or below a saturated vapor pressure corresponding to a deterioration temperature of the object;
b) a gas is supplied from an outside to the inside of the chamber;
c) the object is dried while a temperature of the object is maintained below the deterioration temperature of the object by intermittent irradiation of the microwaves; and
d) the gas is supplied from the outside to the inside of the chamber while the inside of the chamber is maintained under reduced pressure and an airflow is generated around the object. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for drying under reduced pressure using microwaves, comprising:
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a chamber for housing an object;
a depressurizing pump connected to the chamber and provided for depressurizing an inside of the chamber;
a microwave irradiating device for irradiating the microwaves to the object in the chamber;
an airflow generating device for generating an airflow around the object in the chamber by supplying a gas from an outside to the inside of the chamber under reduced pressure; and
a control device for controlling intermittent irradiation of the microwaves in a manner that the microwaves are irradiated to the object from the microwave irradiating device in a predetermined cycle, thereby maintaining a temperature of the object below a deterioration temperature of the object. - View Dependent Claims (20, 21, 22)
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Specification