Centrifugal blower for hot fluids
OwnerChristian O. Schoninventor
Life of this patent
Estimating the term…
Abstract
A single-stage or multi-stage centrifugal blower for hot fluids has a rotor whose housing is made of steel or carbon filaments and whose vanes are made of a ceramic material. The internal surface of the housing is shielded from hot fluids by a lining which is made of a heat-resistant and heat-insulating material and which shares the angular movements of the rotor. The housing can stand pronounced tensional and bending stresses, and the vanes and the lining are designed to stand the pressure of the conveyed and/or compressed fluid or fluids. The blower can be used as a turbine, a suction fan or a pump and can convey gases whose temperature is in excess of 1600.degree. C. and whose pressure is in the range or in excess of 2000 mm water column.
Claims37
A high-capacity centrifugal fluid conveying machine, particularly a blower for hot gaseous fluids, comprising:
- (a) a rotor including a hollow housing which constitutes a body of rotation, and vanes extending generally radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an internal surface;
- (b) insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means including a plurality of plate-like components each of which consists at least in part of heat-insulating and highly heat-resistant material, and each of said plate-like components cooperating with an adjoining plate-like component to define a channel extending generally radially of said housing;
- (c) means for driving said rotor;
- (d) first tubular means for admitting fluid into said housing;
- and
- (e) second tubular means for receiving fluid from said housing.
A high-capacity centrifugal fluid conveying machine for aggressive fluids, particularly a blower for hot gaseous fluid, comprising a rotor including a hollow housing which constitutes a body of rotation and vanes secured to and extending substantially radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an internal surface;
- insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means consisting at least in part of heat-insulating and highly heat-resistant material and including loose insulating material disposed between said vanes;
- means for limiting the extent of movability of such loose insulating material radially inwardly and away from the internal surface of said housing;
- means for driving said rotor;
- first tubular means for admitting fluid into said housing;
- and second tubular means for receiving fluid from said housing.
A high-capacity centrifugal fluid conveying machine for aggressive fluids, particularly a blower for hot gaseous fluids, comprising:
- (a) a rotor including a hollow housing which constitutes a body of rotation, and vanes extending substantially radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an internal surface;
- (b) insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means consisting at least in part of heat-insulating and highly heat-resistant material, and said insulating means including a honeycomb with cells extending substantially axially of said rotor;
- (c) means for driving said rotor;
- (d) first tubular means for admitting fluid into said housing;
- and
- (e) second tubular means for receiving fluid from said housing.
A high-capacity centrifugal fluid conveying machine for aggressive fluids, particularly a blower for hot gaseous fluids, comprising:
- (a) a rotor including a hollow housing which constitutes a body of rotation, and vanes extending substantially radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an internal surface and an open end;
- (b) insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means consisting at least in part of heat-insulating and highly heat-resistant material;
- (c) means for driving said rotor;
- (d) first tubular means for admitting fluid into said housing;
- (e) second tubular means for receiving fluid from said housing, one of said tubular means having an open end adjacent to but out of contact with the open end of said housing;
- and
- (f) a labyrinth seal surrounding said open ends, said one tubular means being stationary, and said labyrinth seal including at least one first annular element surrounding the open end of said housing, and at least one second annular element surrounding the open end of said one tubular means.
A high-capacity centrifugal fluid conveying machine for aggressive fluids, particularly a blower for hot gaseous fluids, comprising:
- (a) a rotor including a hollow housing which constitutes a body of rotation, and vanes extending substantially radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an internal surface;
- (b) insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means consisting at least in part of heat-insulating and highly heat-resistant material, and said insulating means including an outer layer adjacent to said internal surface and consisting of a thermally insulating material which is resistant to relatively low temperatures, and an inner layer inwardly adjacent to said outer layer and consisting of a thermally insulating material which is resistant to elevated temperatures;
- (c) means for driving said rotor;
- (d) first tubular means for admitting fluid into said housing;
- and
- (e) second tubular means for receiving fluid from said housing.
A high-capacity centrifugal fluid conveying machine for aggressive fluids, particularly a blower for hot gaseous fluids, comprising:
- (a) a rotor including a hollow housing which constitutes a body of rotation, and vanes extending substantially radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an end wall, and an internal surface which comprises a section on said end wall;
- (b) insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means consisting at least in part of heat-insulating and highly heat-resistant material, and said insulating means including a disc-shaped portion which is located adjacent to said section of said internal surface and comprises a plurality of neighboring sectors with substantially radially extending gaps therebetween;
- (c) means for driving said rotor;
- (d) first tubular means for admitting fluid into said housing;
- and
- (e) second tubular means for receiving fluid from said housing.
A high-capacity centrifugal fluid conveying machine for aggressive fluids, particularly a blower for hot gaseous fluids, comprising:
- (a) a rotor including a hollow housing which constitutes a body of rotation, and vanes extending substantially radially inwardly from said housing and consisting at least in part of material resistant to aggressive fluids, said housing having an internal surface, and said housing further having an open end, and an annular edge face at said open end;
- (b) insulating means adjacent to said internal surface and arranged to rotate with said housing, said insulating means consisting at least in part of heat-insulating and highly heat-resistant material, and said insulating means including a flange which is adjacent to said edge face;
- (c) means for driving said rotor;
- (d) first tubular means for admitting fluid into said housing;
- and
- (e) second tubular means for receiving fluid from said housing, one of said tubular means having an open end adjacent to but out of contact with said flange.
Dependencies are inferred from the claim text.