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US 2014/0174697 A1Published application
White smoke reducing system and method of recovering waste heat and water using the same
AssigneeKil Hwan Cho
InventorHan Ule CHO
Life of this patent
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Abstract
Disclosed therein are a white smoke reducing system and a method of recovering waste heat and water using the white smoke reducing system. The white smoke reducing system includes a discharge gas inflow pipe, a water recovery part, a sensible heat exchanger, a first latent heat exchanger, a second latent heat exchanger, a steam separator, a discharge part, a circulation duct, and a mixing duct.
Claims5
A white smoke reducing system comprising:
- a discharge gas inflow pipe for supplying exhaust gas containing vapor;
- a water recovery part including:
- a discharge gas inlet connected with the discharge gas inflow pipe and formed at one side thereof to receive discharge gas;
- an upper plate of a flat type disposed at an upper portion thereof and having a water recovery hole perforated therein;
- and a cylindrical water recovery pipe disposed at one side of a lower portion;
- a sensible heat exchanger disposed on the water recovery part and including:
- a lower plate of a flat type joined to the upper plate of the water recovery part and having an inner space corresponding to the upper plate;
- a corrugated heat exchanging unit disposed on the lower plate and having a plurality of corrugated sheets mounted at right angles to the lower plate, the corrugated sheets being arranged in such manner that corrugations are symmetric with corrugations of other corrugated sheets so that exhaust conduits for moving the exhaust gas are formed between the corrugated sheets;
- heat exchanging unit covers of a flat type respectively disposed at upper and lower portion of the corrugated heat exchanging unit and having through holes formed corresponding to the exhaust conduits for moving the exhaust gas;
- side plates disposed at both sides of the outer circumference of the corrugated heat exchanging unit and respectively having the air inlet and the air outlet;
- and an upper plate mounted on upper portions of the side plates and having an inner space corresponding to the lower plate;
- a first latent heat exchanger disposed on the sensible heat exchanger and including:
- a first lower plate having an inner space corresponding to the upper plate of the sensible heat exchanger;
- a first corrugated heat exchanging unit disposed on the first lower plate and having a plurality of corrugated sheets mounted at right angles to the first lower plate, the corrugated sheets being arranged in such manner that corrugations are symmetric with corrugations of other corrugated sheets so that first exhaust conduits for moving the exhaust gas are formed between the corrugated sheets;
- first heat exchanging unit covers of a flat type respectively disposed at upper and lower portion of the first corrugated heat exchanging unit and having through holes formed corresponding to the first exhaust conduits for moving the exhaust gas;
- first side plates disposed at the outer circumference of the first corrugated heat exchanging unit and being at right angles to the first lower plate;
- a first upper plate mounted on upper portions of the first side plates and having an inner space corresponding to the first lower plates, wherein the first lower plate, the first corrugated heat exchanging units, the first heat exchanging unit covers, the first side plates and the first upper plates are laminated in multi stage;
- a water discharge hole disposed at one side of a lower portion for discharging water;
- and water circulation holes symmetrically formed in the upper portion of one side and in the lower portion of the other side in a zigzag form so that water passes from the top to the bottom inside the first latent heat exchanger whose components are laminated in multi stage;
- a second latent heat exchanger disposed on the first latent heat exchanger and including:
- a second lower plate joined to the upper portion of the first upper plate of the first latent heat exchanger and having an inner space corresponding to the first upper plate of the first latent heat exchanger;
- a second corrugated heat exchanging unit disposed on the second lower plate and having a plurality of corrugated sheets mounted at right angles to the second lower plate, the corrugated sheets being arranged in such manner that corrugations are symmetric with corrugations of other corrugated sheets so that second exhaust conduits for moving the exhaust gas are formed between the corrugated sheets;
- second heat exchanging unit covers of a flat type respectively disposed at upper and lower portion of the second corrugated heat exchanging unit and having through holes formed corresponding to the second exhaust conduits for moving the exhaust gas;
- second side plates respectively disposed at the outer circumference of the second corrugated heat exchanging unit and having an outside air outlet perforated in one side and an outside air inlet perforated in the other side for introducing the outside air;
- an upper dispersion plate of a flat type disposed at the outside air inlet for dispersing and supplying exhaust gas through a plurality of through holes thereof;
- and a second upper plate disposed on the second side plates and having an inner space formed corresponding to the second lower plate;
- a steam separator disposed on the second latent heat exchanger and including:
- a lower plate joined to the upper portion of the second upper plate and having an inner space formed corresponding to the second upper plate;
- a plurality of steam separating members of a flat type respectively spaced apart from one another on the lower plate and arranged in a zigzag form in the upward direction;
- blocking members respectively disposed at the front ends of upper portions of the steam separating members and respectively being bent downwardly;
- side plates disposed on the outer circumferential surfaces of the steam separating members and the blocking members;
- and an upper plate disposed on the side plates and having an inner space formed corresponding to the lower plate;
- a discharge part disposed on the steam separator and including:
- a lower plate joined to the upper portion of the upper plate of the steam separator and having an inner space formed corresponding to the upper plate of the steam separator;
- side plates disposed on the lower plate, the side plates being assembled in such a manner that upper and lower portions are opened and the outer circumference is gradually narrowed in the upward direction;
- an inlet formed in one side of the side plate;
- and a dispersion plate of a flat type formed inside the inlet and having a plurality of through holes formed therein;
- a circulation duct connected with the air inlet of the sensible heat exchanger and the outside air outlet of the second latent heat exchanger for supplying the outside air of the second latent heat exchanger to the sensible heat exchanger;
- and
- a mixing duct connected to the air outlet of the sensible heat exchanger and the inlet of the discharge part for supplying the outside air discharged through the air outlet 26 to the discharge part through the inlet.
37 more elements
A method of recovering waste heat and water using a white smoke reducing system, which comprises a discharge gas inflow pipe, a water recovery part, a sensible heat exchanger, a first latent heat exchanger, a second latent heat exchanger, a steam separator, a discharge part, a circulation duct for connecting the above components, and a mixing duct, the method of recovering waste heat and water comprising:
- a first step (S1) of supplying exhaust gas of high temperature and humidity of 70° C. to 80° C. generated from industrial facilities to the water recovery part through the discharge gas inflow pipe;
- a second step (S2) of supplying the exhaust gas of 70° C. to 80° C. of the water recovery part to an exhaust conduit of a corrugated heat exchanging unit of the sensible heat exchanger through a water recovery hole formed in an upper plate of the water recovery part, making temperature of the exhaust gas inside the exhaust conduit reach 60° C. to 70° C. by heat-exchanging with the outside air of 15° C. to 25° C. supplied to the outside of the exhaust conduit through the circulation duct and an air inlet of the sensible heat exchanger, and making the outside air passing outside the exhaust conduit reach 35° C. to 45° C. by heat-exchanging with the exhaust gas inside the exhaust conduit and discharging the outside air through an air outlet of the sensible heat exchanger;
- a third step (S3) of supplying the exhaust gas, which reaches 60° C. to 70° C. while passing the exhaust conduit of the sensible heat exchanger, to a first exhaust conduit of a first corrugated heat exchanging unit of the first latent heat exchanger laminated in multi stage on the exhaust conduit, supplying water at one side of the upper portion laminated in multi stage inside the first latent heat exchanger through a water inlet, passing the supplied water from the top to the bottom along water circulation holes symmetrically formed at an upper portion of one side and a lower portion of the other side in a zigzag form in all layers laminated inside the first latent heat exchanger in multi stage, and making the exhaust gas of the first exhaust conduit reach 40° C. to 50° C. by heat-exchanging with water, which is supplied to the outside of the first exhaust conduit and discharged through a water discharge hole disposed at one side of a lower portion of the first latent heat exchanger;
- a fourth step (S4) of supplying the exhaust gas, which reaches 40° C. to 50° C. while passing the first exhaust conduit of the first latent heat exchanger, to a second exhaust conduits of a second corrugated heat exchanging unit formed inside the second latent heat exchanger disposed on the first exhaust conduit, making the exhaust gas of the second exhaust conduit reach 30° C. to 40° C. by heat-exchanging with the outside air of 0° C. to 10° C., which is introduced to the outside of a second exhaust conduit through an outside air inlet formed at the other side of the second latent heat exchanger, and supplying the outside air heat-exchanged with the exhaust gas, whose temperature rises to 15° C. to 25° C., to the circulation duct through an outside air outlet formed at one side of the second latent heat exchanger;
- a fifth step (S5) of supplying the exhaust gas, which reaches 30° C. to 40° C. while passing through the second exhaust conduit of the second latent heat exchanger, to blocking members bent downwardly at the front ends of the upper portions of a plurality of steam separating members of a flat type formed inside the steam separator 50 disposed on the second exhaust conduit and arranged in the zigzag form in the upward direction, and separating moisture from the exhaust gas supplied to the steam separating members and the blocking members and discharging the exhaust gas;
- and
- a sixth step (S6) of supplying the exhaust gas from which moisture is separated to the discharge part disposed on the steam separator, and mixing the exhaust gas of 30° C. to 40° C. supplied to the discharge part with the outside air of 35° C. to 45° C. and discharging the mixed exhaust gas to the outside through the mixing duct connected with an inlet formed at one side of the discharge part and the air outlet of the sensible heat exchanger.
4 more elements
Dependencies are inferred from the claim text.