Rotary regenerative heat exchanger

Abstract

A rotary regenerative heat exchanger has a structure in which a rotor accommodating a heat storage body such as a heat transfer element is rotated inside a housing, the heat storage body is heated by means of a high-temperature heating fluid such as exhaust gas and stores the heat, and low-temperature fluid to be heated such as combustion air is heated by the heat stored in the heat storage body; and a sector plate for dividing the flow passages for the abovementioned two kinds of fluids, namely the heating fluid and the fluid to be heated, flowing through the inside of the rotor is provided at the upper end face of the rotor with a slight gap therebetween, and a static seal is disposed on both sides of the gap between the sector plate and the external structure of the heat exchanger, a suction pipe being provided in the external structure in such a way as to suction dust material such as ash which accumulates or is agitated on the sector plate.

1 . A rotary regenerative heat exchanger comprising:
 a rotatable rotor accommodating a heat storage body inside a housing, wherein the heat storage body is heated by means of a high-temperature heating fluid for storage of heat by the heat storage body;   a low-temperature fluid heated by the heat stored in the heat storage body;   a sector plate dividing a high-temperature heating fluid flow passage from a low-temperature fluid flow passage, with each passage arranged through an inside of the rotor with a gap therebetween,   a static seal disposed on sides of the gap between the sector plate and the housing of the heat exchanger, and   a suction pipe arranged in the housing to remove by suction a dust material accumulated on or agitated from the sector plate.   
     
     
         2 . The rotary regenerative heat exchanger according to  claim 1 , further comprising a blowing pipe arranged in the housing supplying compressed air jetted toward an upper face of the sector plate to agitate dust material therefrom. 
     
     
         3 . A rotary regenerative heat exchanger comprising:
 a housing in which a rotor accommodating a heat storage body is rotated inside, with the heat storage body heated by means of a high-temperature heating fluid for heat storage therein;   a low-temperature fluid heated by the heat stored in the heat storage body;   a sector plate dividing separate flow passages for each the high-temperature heating fluid and the low-temperature fluid to flow through an inside of the rotor with a slight gap between flow passages,   a static seal disposed on sides of the gap between the sector plate and the housing;   a fabric cloth material is attached with one end thereof fixed to the static seal by means of a first attachment member while another end is fixed to the sector plate by means of a second attachment member.   
     
     
         4 . The rotary regenerative heat exchanger according to  claim 3 , wherein the fabric cloth material is slackened when fixed by the first and second attachment members. 
     
     
         5 . The rotary regenerative heat exchanger according to  claim 3 , wherein the fabric cloth material is removably fixed by the first and second attachment members.