Superheated steam generator and maintenance method therefor

Abstract

The present invention is intended to inform a user of a maintenance timing for a superheated steam generator. The present invention includes an induction heating type or electrically heating type superheated steam generation section and an informing section. The superheated steam generation section generates superheated steam by heating steam. The informing section transmits maintenance information by employing, as a parameter, an operating temperature of the superheated steam generation section and an operating time at the operating temperature.

What is claimed is: 
     
         1 . A superheated steam generator, comprising:
 an induction heating type or electrically heating type superheated steam generation section configured to generate superheated steam by heating steam; and   an informing section configured to transmit maintenance information by employing, as a parameter, an operating temperature of the superheated steam generation section and an operating time at the operating temperature.   
     
     
         2 . The superheated steam generator according to  claim 1 , wherein
 the informing section acquires operating temperature data indicating the operating temperature of the superheated steam generation section, and operating time data indicating the operating time at the operating temperature,   the informing section converts the operating time to an operating time at a predetermined temperature and integrates converted values, and   the informing section transmits the maintenance information when an integration value exceeds a predetermined integration threshold value.   
     
     
         3 . The superheated steam generator according to  claim 2 , wherein the informing section corrects the integration value on a basis of an amount of superheated steam generation in the superheated steam generation section, and the informing section transmits the maintenance information when a corrected integration value exceeds the integration threshold value. 
     
     
         4 . The superheated steam generator according to  claim 2 , wherein the informing section is configured to convert to an operating time at 1200° C. and integrate the converted values. 
     
     
         5 . The superheated steam generator according to  claim 1 , wherein
 the superheated steam generation section comprises a conductor tube that permits passage of the superheated steam, and   the informing section is configured to transmit the maintenance information indicating a replacement timing for the conductor tube.   
     
     
         6 . The superheated steam generator according to  claim 5 , wherein the informing section is configured to transmit the maintenance information by employing, as a parameter, an operating time at an operating temperature at which a volume reduction rate of the conductor tube reaches or exceeds a predetermined value by operating for a predetermined period of time. 
     
     
         7 . The superheated steam generator according to  claim 1 , wherein the informing section specifies a temperature range used for the maintenance information at the operating temperatures of the superheated steam generation section, and utilizes the operating time at the operating temperatures included in the temperature range, as the operating time at a highest temperature in the temperature range. 
     
     
         8 . The superheated steam generator according to  claim 1 , wherein the superheated steam generation section comprises:
 a first superheated steam generation section of the induction heating type configured to carry out induction heating by using, as a secondary coil, a first conductor tube that permits passage of steam, and   a second superheated steam generation section of the electrically heating type configured to further heat superheated steam generated in the first superheated steam generation section by electrically heating a second conductor tube that permits passage of the superheated steam.   
     
     
         9 . The superheated steam generator according to  claim 8 , wherein the informing section is configured to transmit the maintenance information indicating a replacement timing for the second conductor tube. 
     
     
         10 . The superheated steam generator according to  claim 8 , wherein
 the first superheated stem generation section generates superheated steam at less than 1000° C., and   the second superheated stem generation section generates superheated steam at 1000° C. or above.   
     
     
         11 . A maintenance method for a superheated steam generator of an induction heating type or an electrically heating type configured to generate superheated steam by heating steam, the maintenance method comprising:
 transmitting maintenance information by employing, as a parameter, an operating temperature of the superheated steam generation section and an operating time at the operating temperature.