Boiler apparatus for waste incineration

Abstract

A boiler apparatus for waste incineration includes a combustion chamber having a waste inlet formed on one side and combustion spaces for incinerating the introduced waste. Air injection pipes are vertically spaced apart from one another from a lower part of the combustion chamber, extend along the circumference thereof, and have injection holes to inject air toward the center of the combustion spaces. An air supply unit supplies air to each of the air injecting pipes separately, in response to a control signal. Temperature sensors are mounted in the combustion spaces in respective stages vertically divided on the basis of the air injecting pipes, to measure a combustion temperature of the combustion space within the combustion chamber. A control module controls operation of the air supply unit, to control an injection amount of air fed to the combustion space according to a combustion temperature measured by each temperature sensor.

1 . A boiler apparatus for waste incineration, comprising:
 a combustion chamber which has a waste inlet formed on one side and a combustion space formed inside the chamber in order to incinerate the introduced waste;   plural air injection pipes, which are disposed and vertically spaced apart from one another in an upward direction from a lower part of the combustion chamber, extend around the combustion chamber, and have a plurality of injection holes formed along an extended length of the air injection pipes, in order to inject air toward a center of the combustion space;   an air supply unit for supplying air to each of the air injection pipes, separately, in response to a control signal;   a temperature sensor which is mounted in each of combustion spaces in respective stages vertically separated with reference to each air injection pipe within the combustion chamber, in order to measure a combustion temperature of the combustion space in each stage; and   a control module for controlling operation of the air supply unit, in order to adjust an injected amount of air fed to the combustion space in each stage on the basis of a measured combustion temperature by each temperature sensor.   
     
     
         2 . The boiler according to  claim 1 , wherein the control module is adapted to perform:
 comparing the measured combustion temperature input by each of the temperature sensors with a preset reference value of combustion temperature (‘reference combustion temperature’) in each stage; and   if the measured combustion temperature input by any temperature sensor is lower than the reference combustion temperature of the corresponding stage, controlling operation of the air supply unit such that an amount of air injected into the combustion space in the stage, in which the corresponding temperature sensor is disposed, is increased.   
     
     
         3 . The boiler according to  claim 1 , further comprising:
 a water tank unit including a first water tank for receiving and storing water and a second water tank for receiving and storing primarily heated water; and   a water heating chamber which is mounted on an upper part of the combustion chamber and has a heating space in vertical communication with the combustion space, wherein the water heating chamber is provided with:
 a preheating chamber around the heating space so as to primarily heat the water fed from the first water tank  166  using combustion heat of the combustion space and then discharge the heated water to the second water tank, and 
 a heating tube in the heating space so as to secondarily heat the water fed from the second water tank with the combustion heat of the combustion space and then discharge the heated water to a place where the hot water is to be used. 
   
     
     
         4 . The boiler according to  claim 3 , further comprising:
 an exhaust port provided at a top end of the water heating chamber to discharge an exhaust gas generated while burning the waste; and   a cold chamber formed in a tubular shape extending by a predetermined length and connected to the exhaust port at one side thereof to transport the exhaust gas to another side, wherein the cold chamber is provided with:
 a partition for partitioning off an internal space into a plurality of cooling spaces in an extended length direction, and 
 a cooling tube disposed to extend in a length direction within each of the cooling spaces in order to circulate cold water.