U.S. patent application number 17/469603 was filed with the patent office on 2022-03-17 for water heating device and method for manufacturing smoke tube for water heating device.
This patent application is currently assigned to KYUNGDONG NAVIEN CO., LTD.. The applicant listed for this patent is KYUNGDONG NAVIEN CO., LTD.. Invention is credited to Chan Hyuk Park, Duck Sik Park, Jun Gil Park, Jun Kyu Park.
Application Number | 20220082298 17/469603 |
Document ID | / |
Family ID | |
Filed Date | 2022-03-17 |
United States Patent
Application |
20220082298 |
Kind Code |
A1 |
Park; Jun Kyu ; et
al. |
March 17, 2022 |
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.
Inventors: |
Park; Jun Kyu; (Seoul,
KR) ; Park; Duck Sik; (Seoul, KR) ; Park; Chan
Hyuk; (Seoul, KR) ; Park; Jun Gil; (Seoul,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
KYUNGDONG NAVIEN CO., LTD. |
Pyeongtaek-si |
|
KR |
|
|
Assignee: |
KYUNGDONG NAVIEN CO., LTD.
|
Appl. No.: |
17/469603 |
Filed: |
September 8, 2021 |
International
Class: |
F24H 9/00 20060101
F24H009/00; F24D 17/00 20060101 F24D017/00; F28F 13/12 20060101
F28F013/12 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 11, 2020 |
KR |
10-2020-0117130 |
Claims
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.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of priority to Korean
Patent Application No. 10-2020-0117130, filed in the Korean
Intellectual Property Office on Sep. 11, 2020, the entire contents
of which are incorporated herein by reference.
TECHNICAL FIELD
[0002] The present disclosure relates to a water heating device,
and a method for manufacturing a smoke tube for a water heating
device.
BACKGROUND
[0003] A water heating device is a device that heats water. For
example, a water heating device may include a boiler that heats a
desired area by heating water in a container, and a water heater
that discharges the heated water.
[0004] Among the water heating devices, a water heating device
including a smoke tube in a coil form in an interior thereof is
present. The water heating device uses a principle, in which gas
heated by a burner heats water located in an interior space of the
water heating device while passing through the smoke tube in the
coil form.
[0005] Meanwhile, a turbulator may be located in the interior of
the smoke tube. The turbulator may increase a heat exchange
efficiency between the water and the gas located in the interior
space of the water heating device by making the flows of the gas
turbulent in the interior of the smoke tube.
[0006] However, the water heating device including the smoke tube
in the coil form is mass-produced while a turbulator is not present
in the interior thereof due to the shape of the smoke tube, and
thus, the flows of the gas becomes laminar and heat exchange
efficiency is lowered.
[0007] Furthermore, in the water heating device including the smoke
tube in the coil form, a turbulator is not disposed in the interior
thereof, and thus, a length of the smoke tube has to be larger for
securing heat transfer performance, and due to this, a space in the
interior, in which water is filled, may become narrower.
[0008] Furthermore, when a turbulator is to be disposed in the
smoke tube in the coil form, it is difficult to dispose the
turbulator in the interior of the smoke tube due to the shape of
the smoke tube.
SUMMARY
[0009] The present disclosure has been made to solve the
above-mentioned problems occurring in the prior art while
advantages achieved by the prior art are maintained intact.
[0010] An aspect of the present disclosure provides a water heating
device including a turbulator in an interior of a smoke tube.
[0011] The technical problems to be solved by the present
disclosure are not limited to the aforementioned problems, and any
other technical problems not mentioned herein will be clearly
understood from the following description by those skilled in the
art to which the present disclosure pertains.
[0012] According to an aspect of the present disclosure, a 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.
[0013] In another embodiment, the turbulator may be a twisted
turbulator.
[0014] In another embodiment, 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 may be larger
than a pitch of at least some of the downstream parts.
[0015] In another embodiment, 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 may be smaller than a helical pitch of at
least some of the downstream spiral areas.
[0016] In another embodiment, the turbulator may be 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.
[0017] In another embodiment, a plurality of turbulator units for
making the combustion gas turbulent may be connected to each other
to form the turbulator, and physical characteristics of at least
two of the plurality of turbulator units may be different.
[0018] In another embodiment, the plurality of turbulator units may
be arranged according to a specific reference based on the physical
characteristics.
[0019] According to an aspect of the present disclosure, a method
for manufacturing a smoke tube applied to a water heating device
includes 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.
[0020] In another embodiment, the preparing of the twisted
turbulator may include 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.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and other objects, features and advantages of the
present disclosure will be more apparent from the following
detailed description taken in conjunction with the accompanying
drawings:
[0022] FIG. 1 is a view illustrating a body and a smoke tube of a
water heating device according to an embodiment of the present
disclosure;
[0023] FIG. 2 is a view illustrating a combustion chamber and a
smoke tube of a water heating device according to an embodiment of
the present disclosure;
[0024] FIGS. 3 and 4 are views illustrating a turbulator of a water
heating device according to an embodiment of the present
disclosure;
[0025] FIG. 5 is a view illustrating a part of a twisted turbulator
according to an example;
[0026] FIG. 6 is a flowchart illustrating a method for
manufacturing a smoke tube applied to a water heating device
according to an embodiment of the present disclosure; and
[0027] FIG. 7 is a flowchart illustrating an operation of preparing
a twisted turbulator in FIG. 6.
DETAILED DESCRIPTION
[0028] Hereinafter, some embodiments of the present disclosure will
be described in detail with reference to the exemplary drawings. In
providing reference numerals to the constituent elements of the
drawings, the same elements may have the same reference numerals
even if they are displayed on different drawings. Further, in the
following description of the present disclosure, a detailed
description of known functions and configurations incorporated
herein will be omitted when it may make the subject matter of the
present disclosure rather unclear.
Configuration of Water Heating Device
[0029] A water heating device according to an embodiment of the
present disclosure relates to a water heating device having an
improved heat exchange efficiency. The water heating device
according to the embodiment of the present disclosure may include a
body 10, a combustion chamber 20, a smoke tube 30, and a turbulator
40. FIG. 1 is a view illustrating a body 10 and a smoke tube 30 of
a water heating device according to an embodiment of the present
disclosure. FIG. 2 is a view illustrating a combustion chamber 20
and the smoke tube 30 of a water heating device according to an
embodiment of the present disclosure. FIGS. 3 and 4 are views
illustrating a turbulator 40 of a water heating device according to
an embodiment of the present disclosure. For reference, FIG. 2
illustrates the body 10 in a dotted line for convenience of
description, and FIGS. 3 and 4 illustrate the smoke tube 30 in a
dotted line for convenience of description.
[0030] The body 10 may include an interior space "S" configured to
accommodate water. The combustion chamber 20 may be provided in the
interior space "S" of the body 10. As illustrated in FIG. 2, the
combustion chamber 20 may be located on an upper side of the
interior space "S" of the body 10. However, this may be different
according to a kind of the water heating device. The water heating
device illustrated in FIG. 2 may be understood as a downstream type
water heating device.
[0031] The combustion chamber 20 may provide a specific space for a
combustion reaction. The smoke tube 30 may be connected to the
combustion chamber 20, and may guide a combustion gas generated
during the combustion reaction from the combustion chamber 20 to an
outside of the body 10. The smoke tube 30 may be wound in a spiral
shape in at least a partial section. An inlet 31 of the smoke tube
30 may be provided with a blower (not illustrated) that generates a
flow of the combustion gas.
[0032] The turbulator 40 may be provided in the at least a partial
section of the interior of the smoke tube 30 to make the combustion
gas flowing in the interior of the smoke tube 30 turbulent.
[0033] As illustrated in FIGS. 3 and 4, the turbulator 40 may be
wound in a spiral shape to correspond to the spiral shape of the
smoke tube 30.
[0034] For example, a water heating device that does not include a
turbulator in the interior of the smoke tube may be considered. In
this case, the flow of the combustion gas in the smoke tube may be
laminar so that heat exchange efficiency may deteriorate.
[0035] In the water heating device according to the embodiment of
the present disclosure, because the turbulator 40 that is wound in
the spiral shape to correspond to the spiral shape of the smoke
tube 30 is disposed in the interior of the smoke tube 30, the
combustion gas flowing in the interior of the smoke tube 30 may be
made turbulent so that the heat exchanger efficiency may
increase.
[0036] Furthermore, in the water heating device according to the
embodiment of the present disclosure, because the turbulator 40
wound in the spiral shape to correspond to the spiral shape of the
smoke tube 30 is disposed in the interior of the smoke tube 30, the
heat exchange efficiency is high as compared with a case, in which
there is no turbulator, and thus because a length of the smoke tube
30 may be manufactured to be small under the same heat transfer
performance as compared with the case, in which there is no
turbulator, more water may be contained in the interior space
"S".
Twisted Turbulator 41
[0037] The turbulator 40 may be a twisted turbulator 41. The
twisted turbulator 41 may have a dual spiral shape, of which long
sides of a flat plate extending in one direction are made to be
symmetrical to each other by twisting the plate with respect to a
specific axis that faces one direction. FIG. 5 is a view
illustrating a part of a twisted turbulator according to an
example. The turbulator 40 of the water heating device according to
the embodiment of the present disclosure may be understood as
having a shape obtained by winding the twisted turbulator of FIG. 5
in the spiral shape.
[0038] For example, a case, in which the general plate-shaped
turbulator is used instead of the twisted turbulator, may be
considered. In this case, it may not be easy to wind the turbulator
in the spiral shape to insert the turbulator into the smoke tube in
the spiral shape.
[0039] Because the water heating device according to the embodiment
of the present disclosure uses the twisted turbulator, it may be
easy to wind the turbulator in the spiral shape to correspond to
the shape of the smoke tube of the spiral shape as compared with
the plate-shaped turbulator. Accordingly, because the twisted
turbulator of the spiral shape may be disposed in the interior of
the smoke tube of the spiral shape, the heat exchange efficiency
may be improved.
Upstream Parts 42 and Downstream Parts 43
[0040] Hereinafter, the upstream parts 42 and the downstream parts
43 will be described below with reference to FIG. 3. A pitch P1 of
at least some of the upstream parts 42 of the turbulator 40 may be
larger than a pitch P2 of at least some of the downstream parts 43
of the turbulator 40. A pitch "P", as illustrated in FIGS. 3 and 5,
may be understood as a length connecting two points of the same
phase on the long sides of the twisted turbulator 41, which have a
dual spiral shape.
[0041] The upstream parts 42 may mean, among the plurality of parts
obtained by dividing the turbulator 40, parts that are located on
an upstream side with respect to a flow direction "D" of the
combustion gas. The downstream parts 43 may mean parts that are
located on a downstream side of the upstream parts 42. For example,
the turbulator 40 may be divided into the upstream parts 42 and the
downstream parts 423 with respect to a point corresponding to 50%
of the entire length of the turbulator 40.
[0042] In an example of another reference for dividing the
turbulator 40 into the upstream parts 42 and the downstream parts
43, the turbulator 40 may be divided into the upstream parts 42 and
the downstream part 43 with respect to a point, at which an
increment of the pitch "P" in the entire turbulator 40 is 10% or
more. Then, the pitch P1 of the at least some of the upstream parts
42 of the turbulator 40 may be larger than the pitch P2 of the at
least some of the downstream parts 43 of the turbulator 40.
[0043] In more detail, a temperature of the combustion gas in a
section, in which the upstream parts 42 are disposed in the smoke
tube 30, may be higher than that in a section, in which the
downstream parts 43 are disposed in the smoke tube 30. An aspect
that the temperature of the combustion gas is high may mean that a
density of the combustion gas is low. In other words, the density
of the combustion gas in the section, in which the upstream parts
42 are disposed in the smoke tube 30, may be lower than that in the
section, in which the downstream parts 43 are disposed in the smoke
tube 30.
[0044] That is, with reference to the combustion gas of the same
mass, a volume of the combustion gas in the section, in which the
upstream parts 42 are disposed, is larger than that in the section,
in which the downstream parts 43 are disposed.
[0045] Accordingly, the pitch P1 of the at least some of the
upstream parts 42 of the turbulator 40 may be larger than the pitch
P2 of the at least some of the downstream parts 43 of the
turbulator 40 so that a resistance to the combustion gas of the
upstream parts 42 may be reduced.
[0046] An aspect that a pitch of a specific portion of the
turbulator is relatively large may mean that the number of twisting
of the turbulator in the same reference length is relatively small.
This may be understood that the turbulator generates less
turbulence.
[0047] In the water heating device according to the embodiment of
the present disclosure, because the pitch "P" of the at least some
of the upstream parts 42 is larger than the pitch "P" of the at
least some of the downstream parts 43, more turbulence is generated
in the downstream parts 43, in which the combustion gas of a
relatively low temperature is located, than in the upstream parts
42, in which the combustion gas of a relatively high temperature so
that the heat exchange efficiency may be improved.
[0048] Furthermore, the turbulator 40 may be applied as a
resistance to wind generated by a blower to cause the combustion
gas to flow. In the water heating device according to the
embodiment of the present disclosure, because the pitch "P" of the
at least some of the upstream parts 42 is larger than the pitch "P"
of the at least some of the downstream parts 43, strong flows with
characteristics of laminar flows may be generated in the parts, in
which the upstream parts 42 of the smoke tube are located, than in
the parts, in which the downstream parts 43 of the smoke tube are
located. Accordingly, because the resistance to the blower, which
is generated by the upstream parts 42 of the turbulator, may be
reduced, the load of the blower may be reduced.
[0049] In order to further decrease the above-described blower, the
turbulator 40 may be provided between a specific point 33 on the
smoke tube 30 and an outlet 32 of the smoke tube 30. The specific
point 33 on the smoke tube 30 may mean a point that is spaced apart
from the inlet 31 of the smoke tube 30 by a specific distance along
the flow direction "D" of the combustion gas.
[0050] The flow direction "D", as illustrated in FIGS. 3 and 4, may
be understood as a direction, in which the combustion gas flows
along the shape of the smoke tube 30. Hereinafter, the expressions
of the upstream and the downstream may be described below with
reference to the flow direction "D" of the combustion gas in the
smoke tube 30.
[0051] For example, a material of the turbulator 40 may be
variously determined. An area of the turbulator 40, which may be
oxidized or corroded due to high heat may be different according to
the material of the turbulator 40, the turbulator may be disposed
in a section in the smoke tube 30, in which a temperature at which
the turbulator 40 may be neither oxidized nor corroded, is
formed.
[0052] For example, when a temperature at which steel grade x is
corroded at a high temperature is 600 degrees, a temperature of the
inlet 31 of the smoke tube 30 in a state, in which there is no
turbulator, is 1100 degrees, and a temperature of the outlet 32 is
100 degrees, the turbulator manufactured of steel grade x may be
disposed in a section from a point corresponding to 50% of the
downstream side of the smoke tube 30 to the outlet 32. That is, in
the case of steel grade x, the specific point may be a point of 50%
corresponding to the downstream side of the smoke tube 30.
[0053] As another example, when a temperature, at which steel grade
y is corroded at a high temperature, is 300 degrees, a temperature
of the inlet 31 of the smoke tube 30 in a state, in which there is
no turbulator, is 1100 degrees, and a temperature of the outlet 32
is 100 degrees, the turbulator manufactured of steel grade y may be
disposed in a section from a point of 20% of the downstream side of
the smoke tube 30 to the outlet 32. That is, in the case of steel
grade y, the specific point may be a point of 20% of the downstream
side of the smoke tube 30.
[0054] In this case, because the turbulator 40 may be disposed in a
section of the smoke tube 30, in which a temperature at which the
turbulator 40 may be neither oxidized nor corroded is formed, the
oxidation or corrosion of the turbulator 40 may be reduced.
[0055] Furthermore, in this case, because the turbulator 40 is not
disposed at a location from the inlet 31 to the specific point 33,
a load of the blower may be further reduced.
Upstream Spiral Areas 44 and Downstream Spiral Areas 45
[0056] Hereinafter, the upstream spiral areas 44 and the downstream
spiral areas 45 of the turbulator 40 will be described below with
reference to FIG. 4. A helical pitch HP1 of at least some of the
upstream spiral areas 44 of the turbulator 40 may be small as
compared with a helical pitch HP2 of at least some of the
downstream spiral areas 45.
[0057] The upstream spiral areas 44 may mean, among a plurality of
spiral shape areas, areas that are located on an upstream side with
respect to a point, at which the condensate is generated, after the
turbulator 40 is divided into the areas having a plurality of
spiral shapes. The downstream spiral areas 45 may mean areas that
are located on the downstream side of the upstream spiral areas
44.
[0058] For example, because the point, at which the condensate is
generated relatively, may be formed on the upstream side of the
smoke tube 30 when a temperature of the water filled in the
interior space "S" of the body 1 is relatively low, it may be
understood that the lengths of the downstream spiral areas are
relatively large.
[0059] In contrast, because the point, at which the condensate is
generated relatively, may be formed on the downstream side of the
smoke tube 30 when a temperature of the water filled in the
interior space "S" of the body 1 is relatively high it may be
understood that the lengths of the downstream spiral areas are
relatively small.
[0060] As an example of another reference for dividing the upstream
spiral areas 44 and the downstream spiral areas 45, the turbulator
40 may be divided into the upstream spiral areas 44 and the
downstream spiral areas 45 with respect to a point corresponding to
50% of the entire length of the turbulator 40.
[0061] As another example, the turbulator 40 may be divided into
the upstream spiral areas 44 and the downstream spiral areas 45
with respect to a portion, at which a thickness of the turbulator
40 is changed.
[0062] As another example, the turbulator 40 may be divided into
the upstream spiral areas 44 and the downstream spiral areas 45
with respect to a portion, at which a steel grade of the turbulator
40 is changed.
[0063] As another example, the turbulator 40 may be divided into
the upstream spiral areas 44 and the downstream spiral areas 45
with respect to a portion, at which an increment of the helical
pitch HP is 10% or more. Hereinafter, the helical pitch HP will be
described below.
[0064] The helical pitch HP, as illustrated in FIG. 4, may mean a
length connecting the two points having the same phase in the
spiral. That is, it may be understood that an inclination drawn by
a locus of a point that is moved along a spiral is gentle at a
portion of a spiral having a small helical pitch as compared with a
portion having the spiral having a large helical pitch.
[0065] Because the temperature of the combustion gas at a portion
of the smoke tube 30, which is located on the downstream side, is
relatively low, more condensate may be generated at a portion of
the smoke tube 30, which is located on the upstream side, as
compared with a portion of the smoke tube 30, which is located on
the downstream side. The heat exchanger according to the embodiment
of the present disclosure may be advantageous in discharging the
condensate because an inclination of an area of the smoke tube 30,
which is located on the downstream side, may be large to correspond
to the at least some of the downstream spiral areas 45 as the
helical pitch HP1 of the at least some of the upstream spiral areas
44 is smaller than the helical pitch HP2 of the at least some of
the downstream spiral areas 45.
[0066] As an example, when an inclination of the downstream spiral
areas 45 is 3.degree. or less, the condensate gathers without being
discharged due to a surface tension when the condensate is
generated, and thus a durability of the smoke tube 30 is
problematic, for example, the smoke tube 30 is corroded.
Accordingly, at least some of the downstream spiral areas 45 may
have a helical pitch, by which an inclination of the downstream
spiral areas 45 may become 3.degree. or less.
Turbulator Unit 40'
[0067] The turbulator 40 may be formed by connecting the plurality
of turbulator units 40' for making the combustion gas turbulent.
The physical characteristics of at least two of the plurality of
turbulator units 40' may be different. The physical
characteristics, for example, may include all of an external
appearance, a material, a length, a thickness, a mass, a volume, a
strength, a density, a pitch "P" (FIG. 5), and the like.
[0068] For example, because a temperature in the upstream area of
the smoke tube 30 is higher than a temperature in the downstream
side of the smoke tube 30, the turbulator 40 may be oxidized or
corroded. A thickness of the turbulator discharged in the upstream
area of the smoke tube may be larger than a thickness of the
turbulator discharged in the downstream area of the smoke tube.
Furthermore, a heat-resistant performance of the turbulator
discharged in the upstream area of the smoke tube may be better
than a heat-resistant performance of the turbulator discharged in
the downstream area of the smoke tube.
[0069] The plurality of turbulator units 40' may be arranged
according to a specific reference based on the physical
characteristics. For example, the turbulator units having a large
pitch may be disposed relatively on the upstream side, and the
turbulator units having a small pitch may be arranged relatively on
the downstream side. Furthermore, the turbulator units having a
large mass may be disposed relatively on the upstream side, and the
turbulator units having a small mass may be disposed relatively on
the downstream side.
[0070] Because the physical characteristics of the at least two of
the plurality of turbulator units are different, a turbulator
having a desired shape may be manufactured according to a need of
the user. For example, when the user desired to dispose the
turbulator units having the large pitch on the upstream side of the
smoke tube 30 and dispose the turbulator units having the small
pitch on the downstream side of the smoke tube 30, the turbulator
having the shape may be manufactured.
Method for Manufacturing Smoke Tube
[0071] Hereinafter, a method for manufacturing a smoke tube applied
to a water heating device according to an embodiment of the present
disclosure will be described with reference to FIGS. 6 and 7. FIG.
6 is a flowchart illustrating a method for manufacturing a smoke
tube applied to a water heating device according to an embodiment
of the present disclosure. FIG. 7 is a flowchart illustrating an
operation of preparing a twisted turbulator in FIG. 6.
[0072] A general configuration of the water heating device is as
described above, and thus a detailed description thereof will be
omitted. Furthermore, FIGS. 1 to 5 may be referenced for
understanding.
[0073] The method for manufacturing the smoke tube 30 applied to
the water heating device, as illustrated in FIG. 6, may include an
operation (S100) of preparing a linear smoke tube, an operation
(S200) of preparing a twisted turbulator, an operation (S300) of
inserting the twisted turbulator into the smoke tube, and an
operation (S400) of winding the smoke tube in a spiral shape
together with the twisted turbulator.
[0074] For example, a method of inserting the linear twisted
turbulator after the linear smoke tube is prepared and is wound in
the spiral shape may be considered. In this case, it may be
difficult to insert the linear twisted turbulator due to the spiral
shape of the smoke tube.
[0075] According to the method for manufacturing the smoke tube
applied to the water heating device according to the embodiment of
the present disclosure, because the smoke tube and the twisted
turbulator are wound in the spiral shapes together after the
twisted turbulator is inserted into the linear smoke tube, the
smoke tube, in which the twisted turbulator is disposed, may be
efficiently manufactured.
[0076] As illustrated in FIG. 7, the operation of preparing the
twisted turbulator may include an operation (S210) of preparing a
plurality of turbulator units, of which physical characteristics of
at least two are different, and an operation (S220) of arranging
and coupling the plurality of turbulator units according to a
specific reference based on physical characteristics thereof.
[0077] For example, the user desires to prepare a twisted
turbulator, in which the turbulator units having a relatively large
pitch are disposed on the upstream side of the smoke tube and the
turbulator units having a relatively small pitch are disposed on
the downstream side of the smoke tube, a plurality of turbulator
units having the relatively large pitch and a plurality of
turbulator units having the relatively small pitch are prepared and
then may be arranged and connected to each other depending on the
lengths of the pitches.
[0078] According to the present disclosure, because the turbulator
that may make flows turbulent is disposed in the interior of the
spiral smoke tube, heat exchange efficiency may be increased.
[0079] Furthermore, according to the present disclosure, because
the turbulator may be effectively disposed in the interior of the
spiral smoke tube, work efficiency may be increased.
[0080] The above description is a simple exemplification of the
technical spirits of the present disclosure, and the present
disclosure may be variously corrected and modified by those skilled
in the art to which the present disclosure pertains without
departing from the essential features of the present disclosure.
Accordingly, the embodiments disclosed in the present disclosure is
not provided to limit the technical spirits of the present
disclosure but provided to describe the present disclosure, and the
scope of the technical spirits of the present disclosure is not
limited by the embodiments. Accordingly, the technical scope of the
present disclosure should be construed by the attached claims, and
all the technical spirits within the equivalent ranges fall within
the scope of the present disclosure.
* * * * *