Water heating device and method for manufacturing smoke tube for water heating device

Abstract

Disclosed are a water heating device, and a method for manufacturing a smoke tube for a water heating device. The water heating device includes a body having an interior space that accommodates water, a combustion chamber provided in the interior space of the body and that provides a space for a combustion reaction, a smoke tube connected to the combustion chamber, that guides a combustion gas generated during the combustion reaction from the combustion chamber to an outside of the body, and wound in a spiral shape in at least a partial section, and a turbulator provided in at least a partial section of an interior of the smoke tube to make the combustion gas flowing in the interior of the smoke tube turbulent, and wound in a spiral shape to correspond to the spiral shape of the smoke tube.

What is claimed is: 
     
         1 . A water heating device comprising:
 a body having an interior space configured to accommodate water;   a combustion chamber provided in the interior space of the body and configured to provide a space for a combustion reaction;   a smoke tube connected to the combustion chamber, configured to guide a combustion gas generated during the combustion reaction from the combustion chamber to an outside of the body, and wound in a spiral shape in at least a partial section; and   a turbulator provided in at least a partial section of an interior of the smoke tube to make the combustion gas flowing in the interior of the smoke tube turbulent, and wound in a spiral shape to correspond to the spiral shape of the smoke tube.   
     
     
         2 . The water heating device of  claim 1 , wherein the turbulator is a twisted turbulator. 
     
     
         3 . The water heating device of  claim 2 , wherein when the turbulator is divided into a plurality of parts, and it is defined that, among the plurality of parts, parts located on an upstream side with respect to a flow direction of the combustion gas are upstream parts and parts located on a downstream side of the upstream parts are downstream parts,
 a pitch of at least some of the upstream parts are larger than a pitch of at least some of the downstream parts.   
     
     
         4 . The water heating device of  claim 2 , wherein when the turbulator is divided into a plurality of spiral areas, and it is defined that, among the plurality of spiral areas, areas located on an upstream side with respect to a point, at which condensate is generated, are upstream spiral areas, and areas located on a downstream side of the upstream spiral areas are downstream spiral areas,
 and it is defined that a length connecting two points having the same phase in a spiral is a helical pitch,   a helical pitch of at least some of the upstream spiral areas are smaller than a helical pitch of at least some of the downstream spiral areas.   
     
     
         5 . The water heating device of  claim 1 , wherein the turbulator is provided between a specific point on the smoke tube, which is spaced apart from an inlet of the smoke tube, through which the combustion gas is introduced, by a specific distance along a flow direction of the combustion gas, and an outlet of the smoke tube, through which the combustion gas is discharged. 
     
     
         6 . The water heating device of  claim 1 , wherein a plurality of turbulator units for making the combustion gas turbulent are connected to each other to form the turbulator, and
 wherein physical characteristics of at least two of the plurality of turbulator units are different.   
     
     
         7 . The water heating device of  claim 6 , wherein the plurality of turbulator units are arranged according to a specific reference based on the physical characteristics. 
     
     
         8 . A method for manufacturing a smoke tube applied to a water heating device, the method comprising:
 preparing the smoke tube that is linear;   preparing a twisted turbulator;   inserting the twisted turbulator into an interior of the smoke tube; and   winding the smoke tube in a spiral shape together with the twisted turbulator.   
     
     
         9 . The method of  claim 8 , wherein the preparing of the twisted turbulator includes:
 preparing a plurality of turbulator units, of which physical characteristics of at least two are different; and   arranging and coupling the plurality of turbulator units according to a specific reference based on the physical characteristics.