KR101882359B1 - Using waste heat energy recycling systems - Google Patents

Abstract

The present invention relates to an energy recycling system using waste heat of a combustion device installed with a thermoelectric generator capable of producing electricity capable of recycling energy using waste heat of a combustion device and improving the durability of the waste heat of the combustion device A cooling water supply unit for supplying cooling water to the combustion apparatus; and a cooling water supply unit for supplying cooling water to the combustion apparatus. The cooling water supply apparatus includes at least one cooling water supply unit for supplying cooling water to the combustion apparatus. A cooling water step provided for heat exchange with the cooling water supplied from the cooling water supply part so as to reduce the respective flue temperatures heated by the waste heat, It is connected to the cooling water line and the heat exchanger And a heat storage tank for storing the heat exchange water generated through the heat exchanger, wherein the heat exchange water can be used as hot water or hot water in a heating execution zone, wherein the flue is divided into a cylindrical first pipe A second tube inserted into the first tube and having an outer surface adjacent to the inner surface of the first tube, a second tube inserted into the second tube and having an outer surface adjacent to the inner surface of the second tube, 3 pipes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an energy recycling system using waste heat of a combustion device,

The present invention relates to a thermoelectric generator capable of producing electricity by using waste heat of a combustion device and capable of recycling energy generated by waste heat as well as improving the durability of the waste heat of the combustion device And more particularly to an energy recycling system using waste heat of a combustion device.

In recent years, renewable energy has emerged as an important issue worldwide due to climate change due to greenhouse gases and rising fossil fuels.

Generally, a daily waste incinerator of 100 ton per day generates 9 Gcal of steam, and the thermal energy of steam is equivalent to 1.5 ton / hr of bituminous coal with a calorific value of 6,000 Kcal / kg, which can save 532 tons per year However, most of the waste incineration and combustion facilities are located outside the city due to environmental complaints. Therefore, thermal energy such as steam generated in incineration and combustion facilities is not reused and is being abandoned.

In addition, in the consumer who needs heat energy, the cost of the fossil fuel is increased due to the increase in the cost of the fossil fuel. In order to connect the heat source with the heat consumer, the steam pipe is generally used. However, There is a problem that the steam piping can not be used because the economical efficiency is low.

Fig. 1 is a configuration diagram showing an example of a conventional method for supplying recycled heat energy to combustion waste heat, and Fig. 2 is a configuration diagram showing another example of a method for supplying recycled heat energy to a conventional combustion waste heat.

As shown in FIG. 1, an example of the recycling heat energy supplying method disclosed in the conventional patent publication No. 10-1620034 (public notice: 2016.05.12) is a method of burning waste in the incineration and combustion facility 110 to produce And exhausts the exhaust gas through a stack 160 through the air-conditioning facility 130. [

At this time, steam generated in the boiler 120 passes through the generator 140 to generate electricity. Steam passing through the generator 140 is discharged to the outside or is recovered to the boiler 120 through the cooling tower 150, . In addition, the ash 170 generated in the incineration and combustion facility 110, the boiler 120, and the atmospheric pollution prevention facility 130 is collected and buried in one storage tank.

As shown in Fig. 2, another example of a conventional method of supplying recycled heat energy is a method in which waste is burned in the incineration and combustion facility 210 to provide a heat source to the boiler 220, and exhausts the exhaust gas through the stack (stack) 240.

At this time, the steam generated in the boiler 220 is discharged to the outside, and the ash 250 generated in the incineration and combustion facility 210, the boiler 220 and the air pollution control facility 230 is collected in one storage tank And buried and discarded.

Therefore, a large amount of waste heat is generated while operating various combustion devices and heating devices provided in a combustion device such as an incinerator or a boiler. However, in many cases, such waste heat sources are not used in many cases. Even if waste heat sources are used, It has a problem that it is very passive to the utilization of the waste heat energy and also the usage efficiency of the waste heat source is greatly deteriorated.

In addition, there is a problem that frequent maintenance must be performed because the chimneys discharged from concentrated pyrolysis are often damaged or damaged due to the temperature of the waste heat.

In addition, the prior art uses electric power required for operation in dependence on an external power source, which poses a problem in that it is economically burdensome to use electricity.

The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a burner for burning waste heat generated from combustion by electric energy, The present invention provides an energy recycling system using waste heat of a combustion device to which a thermoelectric generator capable of generating electricity capable of preventing damage to a chimney or the like is installed.

Another object of the present invention is to provide an energy recycling system using waste heat of a combustion device, which is equipped with a thermoelectric generating means capable of producing electricity that can recycle energy and use electricity by itself.

According to an aspect of the present invention, there is provided an energy recycling system using waste heat of a combustion device to which a thermoelectric generator capable of producing electricity is attached, comprising: a cooling water supply unit for supplying cooling water to the combustion apparatus; A cooling water circulation unit for cooling the cooling water supplied from the cooling water supply unit so as to reduce the temperature of each of the flue gases heated by the waste heat, And a heat exchanger which is connected to the cooling water stage so as to allow the cooling water heat-exchanged through the cooling means to flow therethrough and generates heat exchange water by exchanging heat with the direct water supplied from the outside, Exchanged water generated through the heat exchanger A thermoelectric module which is installed in close proximity to the combustion device and absorbs the temperature of the waste heat and the outside air of the flue gas and generates electricity by self-heating according to the temperature difference; A first tube having a cylindrical shape and a second tube having an outer surface disposed adjacent to the inner surface of the first tube so as to be adjacent to the first tube; And a third tube inserted into the second tube and having an outer surface adjacent to the inner surface of the second tube.

The cooling means may include at least one of a main cooling member and an auxiliary cooling coil. The main cooling member may protrude from the outer surface of the first pipe so as to have a spiral shape in the longitudinal direction of the first pipe, And the other end is connected to the heat exchanger and is protruded to have a first cooling coil for attenuating the temperature of the first pipe or a spiral shape in the longitudinal direction on the outer surface of the second pipe, And the other end is connected to the heat exchanger to attenuate the temperature of the second tube, and the auxiliary cooling coil includes at least one of the first tube or the second tube having the first cooling coil formed therein, And a coil-like shape so as to be longitudinally wrapped around the outer surface of at least one of the second tubes in which the cooling coil is formed.

The heat storage tank may further include a cylindrical body having a housing space formed therein and having a first outlet connected to the housing space and a second outlet connected to the housing space on an outer surface thereof, A three-way valve having a plurality of outlets through which the heat exchange water introduced through the inlet can be separated and exhausted so as to be used as heating or hot water of the heating execution zone and a three-way valve provided inside the accommodation space, And a coin pipe connected to one of the plurality of outlets of the three-way valve at one end and connected to the second outlet to supply only heating water necessary for heating the heating enforcement area, It is preferable to be able to be maintained at a constant temperature by the temperature of the heat exchange water accommodated in the accommodation space portion.

According to the present invention, there is provided a cooling device comprising: a cooling unit provided in a flue for discharging waste heat at the time of combustion of a combustor; a cooling water supply unit for supplying cooling water to the cooling unit; The heat exchange water is heat exchanged through the heat exchanger and circulated through the heating line so that the heat exchange water can be used as heating or hot water in the heating execution zone, And has an effect of preventing the durability from being lowered due to the temperature of the waste heat through the cooling means provided in the flue.

In addition, since the electricity is produced / accumulated by the electricity generating means through the electricity generating means, the economic burden is also reduced.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 and Fig. 2 are diagrams showing a conventional method of supplying recycled heat energy to combustion waste heat. Fig.
FIG. 3 is a schematic view showing an energy recycling system using waste heat of a combustion device to which a thermoelectric generator capable of producing electricity according to the present invention is attached. FIG.
4 is a view showing a year of an energy recycling system using waste heat of a combustion device furnished with thermoelectric generating means capable of producing electricity according to the present invention.
Figure 5a shows a first tube for Figure 4;
5B is a cross-sectional view along line AA 'of FIG. 5A.
Figure 6a shows a second tube for Figure 4;
6B is a cross-sectional view taken along the line BB 'in FIG. 6A.
Figure 7a is a partial enlarged cross-sectional view of Figure 4;
Figure 7b is another embodiment of Figure 7a.
FIG. 8 is a view illustrating an auxiliary cooling coil of an energy recycling system using waste heat of a combustion device to which a thermoelectric generator capable of producing electricity according to the present invention is attached. FIG.
9 is a view showing a heat storage tank of an energy recycling system using waste heat of a combustion device provided with a thermoelectric generator capable of producing electricity according to the present invention.
FIG. 10 is a functional relationship diagram of an energy recycling system using waste heat of a combustion device provided with a thermoelectric generator capable of producing electricity according to the present invention. FIG.
11 is another embodiment of the cooling means of the energy recycling system using the waste heat of the combustion device provided with the thermoelectric generator capable of producing electricity according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an energy recycling system (hereinafter briefly referred to as a "recycling system") using waste heat of a combustion device equipped with a thermoelectric generator capable of producing electricity according to the present invention will be described in detail with reference to the accompanying drawings.

3, the recycling system 1 according to the present invention mainly includes a cooling water supply unit 100, a flue 200, a cooling unit 300, a heat exchanger 400, a heat storage tank 500, And a production means (700).

More specifically, the cooling water supply unit 100 supplies the cooling water to the temperature (particularly the surface temperature) of the flue 200 at the time of discharging the waste heat of high temperature generated by the combustion of the combustion device F through the flue 200, To the cooling means (300).

The cooling water supply unit 100 may be installed outside the combustion apparatus F and may be connected to the cooling line L1 so as to be circulated with the cooling unit 300 and the heat exchanger 400 by the first circulation pump P1. So that the temperature of the flue 200 can be attenuated.

The cooling water is temporarily stored in the cooling line L1 at the time of circulation to the cooling water supply unit 100. The temperature of the cooling water is measured by a control unit (not shown) The cooling water can be supplied to the cooling water supply unit 100 through a separate cooler 110 that can maintain the temperature of the introduced cooling water at a predetermined temperature so that the temperature of the flue 200 can be supplied without supplying new cooling water So that it can be attenuated.

As shown in FIGS. 4 to 6B, the flue 200 is configured to collect waste heat of high temperature discharged from the combustion device F and be discharged in one direction. However, in the present invention, it is assumed that the first to third tubes 210, 220, and 230 are adjacent to each other and the triple-tube type flue is described as an example.

The first pipe 210 has a hollow cylindrical shape having a predetermined diameter inside and is provided with a first pipe 210 for providing a traveling path through which the cooling water supplied from the cooling water supply unit 100 can move in the longitudinal direction, The cooling coil 311 is protruded in a spiral shape.

The second pipe 220 has a hollow cylindrical shape with a predetermined diameter and is inserted into the first pipe 210. The second pipe 220 is inserted into the first pipe 210 from the cooling water supply unit 100 in the longitudinal direction, A second cooling coil 313 for providing a traveling path through which the cooling water can move is spirally formed.

The second tube 220 is inserted into the first tube 210 so that its outer surface is adjacent to the inner surface of the first tube 210 by a predetermined distance so that an auxiliary cooling coil 320 described later can be installed .

The first and second cooling coils 311 and 313 protruding from the outer surfaces of the first and second tubes 210 and 220 are formed such that the protrusions 311a and 313a are formed in the lengths of the first tube 210 and the second tube 220, 313b so that the auxiliary cooling coil 320 can be stably installed in the space portions 311b, 313b, if necessary, so that the auxiliary cooling coil 320 can be stably installed in the space portions 311b, 313b (See Figs. 7A and 8)

The first cooling coil 311 protruding from the outer surface of the first tube 210 may be additionally formed on the inner surface of the first tube 210 or may be formed on the inner surface of the first tube 210, And the protrusion 311a can be inserted into the space 313b formed in the second cooling coil 313 so that the structure of the combustion appliance F in which the flue 200 is installed without interference of the protrusion 311a So that it can be easily installed.

The third pipe 230 has a hollow cylindrical shape with a hollow portion having a predetermined diameter and is inserted into the second pipe 220.

The hollow portion of the third pipe 230 is provided with a passage through which the waste heat of the combustion device F can be collected and discharged and the cooling water is moved in the same manner as the first pipe 210 or the second pipe 220 The first or second cooling coils 311 and 313 may be formed, but the durability of the first or second cooling coils 311 and 313 is deteriorated due to the temperature of the waste heat, .

7A to 8, the cooling unit 300 circulates the cooling water supplied through the cooling water supply unit 100 by the first circulation pump P1 along the outer surface of the flue 200, And a main cooling member 310 and a sub cooling coil 320 that are composed of a first cooling coil 311 and a second cooling coil 313 in order to attenuate the surface temperature of the flue 200.

The first cooling coil 311 is protruded from the outer surface or the inner surface of the first tube 210 and has a spiral shape in the longitudinal direction so as to be connected to the first tube 210 The protrusions 311a protrude to form a space 311b adjacent to each other at a predetermined distance.

The second cooling coil 313 may protrude from the outer surface of the second tube 220 formed in a cylindrical shape so as to have a spiral shape in the longitudinal direction so as to attenuate the temperature of the second tube 220 by the movement of the cooling water. And each of the protrusions 313a protrudes to form a space 313b adjacent to the first cooling coil 311 formed at the first tube 210 at a predetermined distance.

In addition, the first and second cooling coils 311 and 313 may be connected to each other through a single pipe as necessary. However, when any one of the cooling coils is damaged, a cooling water supply unit 100, respectively, so that the temperature of the flue 200 can be attenuated, and the respective outlet sides are combined into one inside the heat exchanger 400 to perform heat exchange with the direct water supplied from the direct water supply unit 420 .

The auxiliary cooling coil 320 is formed so as to have a coil shape as a whole and has one end connected to the cooling water supply part 100 and the other end connected to the heat exchanger 400 to connect the first pipe 210 or the second pipe 210, And is installed longitudinally outside at least one of the pipes 220 to attenuate the temperature of the flue 200 together with the main cooling member 310.

The auxiliary cooling coil 320 is disposed to be inserted into the space portions 311b and 313b of the first or second cooling coils 311 and 313 protruding from the first tube 210 or the second tube 220, 1 or the second tubes 210 and 220. [

One end of the auxiliary cooling coil 320 is connected to the inlet side of the first or second cooling coils 311 and 313 as needed. The auxiliary cooling coil 320 is selectively opened and closed by a valve (not shown) The operator can open the valve and supply the cooling water to the auxiliary cooling coil 320. When the temperature of the flame 200 is lowered by the operator, Thereby helping to attenuate the temperature of the flue 200.

The first and second cooling coils 311 and 313 are formed in the space portions 311b and 313b in the direction of the outlet where the waste heat is discharged in the direction of the combustion device F when the first and second cooling coils 311 and 313 are formed on the outer surfaces of the first and second pipes 210 and 220, The temperature of the flue 200 adjacent to the combustion device is rapidly cooled and the cooling rate is gradually lowered toward the outlet of the flue 200, So that the cooling rate to be adjusted to the position of the flame 200 can be adjusted to some extent (see FIG. 11).

3, the heat exchanger 400 is used to attenuate the temperature of the flue 200 and heat-exchanges the coolant whose temperature has risen with the direct water, so that the number of heating water required for heating the heating enforcement area 600 This is a configuration for acquiring hot water.

The heat exchanger 400 may be a conventional heat exchanger in the form of a plate or a cylinder and the coolant whose temperature has risen is directly stored in a direct water supply unit 420 having a tank shape, 400) so that heat exchange can be performed.

In addition, the direct water supply unit 420 is provided with a water level sensor (not shown) connected to the control unit so that the direct water supplied to the direct water supply unit 420 can be measured and supplemented according to the measured result. .

At this time, it is preferable that the proper water pressure of direct water flowing into the heat exchanger 400 side from the direct water supply unit 420 is maintained at 1 ± 0.5 kg / cm 2.

That is, the direct water to be heat-exchanged with the cooling water through the heat exchanger 400 may have a water pressure difference of at least 1 kg / cm 2 to 4 kg / cm 2 depending on the supply region. The heat exchanger 400, So that the direct water can be supplied to the heat exchanger 400 through the direct water supply unit 420 so that the direct water can be supplied at a constant water pressure.

Although not shown, the direct water supply unit 100 is provided with a pump (not shown) having a pressure reducing function so that the stored direct water can be supplied to the heat exchanger 400 at an appropriate water pressure, The second circulation pump P2, together with the water pressure, causes the heat exchange water to circulate in the heating line.

At this time, the pump adjusts the water pressure of the direct water supplied to the heat exchanger 400 through a control unit (not shown) so as to set the temperature of the heat exchange water to be generated. The temperature of the heat exchange water is controlled by the heat exchanger 400, To be controlled by the temperature sensed by the temperature sensor 410 installed in the heating line L2 leading to the heating chamber 500. [

The heat exchange water of the predetermined temperature generated by the heat exchange between the cooling water and the direct water is supplied to the heat storage tank 500 by the second circulation pump P2 so that it can be used as hot water as well as the heating water of the heating execution area 600 .

9, the heat storage tank 500 has the same tank shape as the direct water supply unit 420 described above. The heat exchange water generated by heat exchange in the heat exchanger 400 is circulated through the heating line L2, And a body 510 and a three-way valve 520, which are configured to be supplied and stored by the second circulation pump P2 installed in the second circulation pump P2.

The body 510 has a generally cylindrical shape and is formed in the form of a tank having a housing space 515 therein for accommodating heat exchange water.

The heat exchanging water supplied to the inside of the body 510 through the heating line L2 is supplied to the outer surface of the body 510 and the hot water required for heating the heating execution zone 600 and the hot water required for the heating execution zone 600 A first outlet 511 communicating with the accommodation space 515 and a second outlet 513 not connected to the accommodation space 515 are formed so as to be separately supplied.

The three-way valve 520 means a three-way valve 520, which is a conventional three-way valve having one inlet and two separate outlets, the outlet direction of which is electrically opened by the control unit, And a plurality of outlets are independently installed inside the body 510 and are connected to a plurality of outlets provided on the outer surface of the body 510, respectively.

One of the plurality of outlets of the three-way valve 520 is connected to the second outlet 513 provided in the body 510 to be used as the heating water circulating the heating line L2 and the heating execution zone 600 And the other outlet is connected to the body 510 through the first outlet 511 to receive the heat exchange water into the housing space 515. The first outlet 511 and the second outlet 511 are connected to each other in the form of a coin tube 530, ) To be used as hot water.

The outer surface of the coin tube 530 is maintained at a constant temperature by the temperature of the heat exchange water accommodated in the accommodation space 515 so that the heating line L2 between the heat exchanger 400 and the heat storage tank 500 can be maintained, Exchanging water accommodated in the accommodating space portion 515 even if the temperature of the heat exchanging water that moves in the receiving space portion 515 is lost to some extent.

The electricity generating means 700 includes a thermoelectric module 710 and a battery 720, which are constructed of platinum, to generate electricity using waste heat of the flue 200.

The thermoelectric module 710 refers to a thermoelectric semiconductor 711 including a heating element 713 and a cooling element 715 in a configuration capable of producing electricity by waste heat. Before describing the description, the battery 720 according to the present invention refers to a configuration in which normal electricity is charged, and a detailed description thereof will be omitted so as not to obscure the gist of the present invention. The battery 720 includes an electrically connected bimetal When the power is not generated, the power is cut off and the power consumption of the battery 720 is minimized.

In addition, a blocking member may be further provided between the heating element 713 and the cooling element 715 to block heat conduction between the heating element 713 and the cooling element 715. The blocking member may include at least one of asbestos, glass fiber, 713 and the cooling element 715 are formed to have a wrinkled shape so as to maximize the contact area with the outside, that is, the area for receiving the heat or receiving the outside temperature.

One end of the thermoelectric semiconductor 711 is installed close to the flue 200 that discharges waste heat of high temperature in order to increase thermal efficiency and the other end thereof is cooled by the air supply pipe 200-1, And is installed close to the air supply pipe 200-1.

In addition, a heating element 713 of a plate structure having a corrugated shape capable of recovering waste heat is connected to one end of the thermoelectric semiconductor 711, and the other end of the thermoelectric semiconductor 711 is connected to the heating element 713 And a cooling element 715 having the same structure as the cooling element 715 are connected.

The thermoelectric module 710 can have a structure in which the heat is recovered through the heating element 713 and the cooling element 715 as well as the cooling is performed at the same time so that the thermal conduction is performed only through the thermoelectric semiconductor 711, An electromotive force is generated in proportion to the high temperature deviation of the semiconductor 711, and a current flows to generate electric power.

Further, the produced electricity is charged into the battery 720 to be described later, and is supplied to the cooler 110, the temperature sensor 410, the three-way valve 520 and the plurality of heaters (not shown), which are operated through the above- So that electricity can be applied to the circulation pump of the pump.

Hereinafter, the operation and the operation of the recycling system 1 according to the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 10, when combustion is performed in the combustion unit provided in the combustion device F through a control unit (not shown), the cooling water supply unit 100 operates simultaneously, The cooling water is supplied to at least one of the main cooling member 310 and the auxiliary cooling coil 320 by the pump P1 to attenuate the temperature of the flue 200. [

The cooling water used to attenuate the temperature of the flue 200 is introduced into the heat exchanger 400 by the first circulation pump P1 and the cooling water introduced into the heat exchanger 400 is supplied to the direct water supply unit 420 Exchanges heat with the supplied direct water to obtain heat exchange water for use as heating or hot water in the heating execution zone 600.

The cooling water that has undergone the heat exchange in the heat exchanger 400 flows into the cooling water supply unit 100 again or is cooled to a predetermined temperature by the cooling unit 110 installed in the cooling line L1 to be supplied to the cooling water supply unit 100 And is circulated by the first circulation pump P1 so that it can be introduced.

The heat exchange water obtained through the heat exchanger 400 flows into the body 510 constituting the heat storage tank 500 by the second circulation pump P2 installed in the heating line L2, Is separated and introduced into the accommodating space portion 515 and the coin pipe 530 through a plurality of outlets formed in the three-way valve 520 so that the heat exchange water flowing into the heating room 600 And the hot water of the heating execution area 600.

In addition, the heating water used for heating the heating execution area 600 is returned to the direct water supply part 100 through the heating line L2 so that the heat can be exchanged through the heat exchanger 400 again.

The recycling system according to the present invention having the above-described configuration differs from the prior art in that the combustion device F is provided with cooling means 300 provided in the flue 200 where the waste heat is discharged at the time of combustion, A cooling water supply unit 100 for supplying cooling water and a heat exchanger 400 for introducing cooling water having heat exchange in the flue 200 and re-exchanging heat with direct water supplied from the outside through a cooling line L1 And the heat exchange water having undergone the heat exchange through the heat exchanger 400 can be circulated through the heating line L2 so that the heat exchange water can be used as heating or hot water of the heating execution zone 600, And has an effect of preventing the durability from being lowered due to the temperature of waste heat through the cooling means 300 provided in the flue 200.

In addition, the present invention has the effect of reducing the economic burden by producing / accumulating electricity using a self-generating system through the electricity generating means 700 differently from the conventional art.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the spirit and scope of the invention are not limited to these specific embodiments, but that various changes and modifications may be made without departing from the spirit of the invention, If you are a person, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

1: An energy recycling system using the waste heat of a combustion device equipped with thermoelectric generating means capable of producing electricity according to the present invention
100: cooling water supply part 110: cooler
200: Year 210: First hall
220: the second pipe 230: the third pipe
300: cooling means 310: main cooling member
311: first cooling coil 313: second cooling coil
320: auxiliary cooling coil 400: heat exchanger
410: Temperature sensor 420: Direct water supply section
500: heat storage tank 510: body
511: first outlet 513: second outlet
515: accommodation space part 520: three-way valve
530: Coil pipe 600: Heating area
700: Electric production means 710: Thermoelectric module
711: Normal semiconductor 713: Heating element
715: Cooling element 720: Battery
P1: first circulating pump P2: second circulating pump
L1: cooling line L2: heating line

Claims (3)

A cooling water supply unit 100 installed outside the combustion apparatus F for supplying cooling water;
A flue 200 installed at least one in the combustion device F for collecting waste heat generated in the combustion device F and discharging it to the outside;
A cooling means (300) provided for heat exchange with the cooling water supplied from the cooling water supply unit (100) so as to reduce the temperature of each of the flames (200) heated by the waste heat;
A heat exchanger (400) connected to the cooling means (300) so as to allow the heat exchanged cooling water to flow through the cooling means (300) and generating heat exchange water by mutually exchanging heat with water supplied and stored from the outside;
A heat storage tank 500 for receiving the heat exchange water generated through the heat exchanger 400 so that the heat exchange water accommodated therein can be used as heating water or hot water of the heating execution zone 600; And
A thermoelectric module 710 disposed adjacent to the combustion device F to absorb the temperature of the waste heat and the outside air of the flue 200 and to generate electricity by self-temperature variation; a thermoelectric module 710 (700) including a battery (720) to which electricity is charged,
One end of the flue 200 is connected to the cooling water supply unit 100 and the other end of the flue 200 is connected to the heat exchanger 400 A first cooling coil 311 connected to the first pipe 210 to reduce the temperature of the first pipe 210 and a second cooling coil 311 inserted into the first pipe 210 and having an outer surface adjacent to the inner surface of the first pipe 210, A second pipe 220 installed on the outer surface of the second pipe 220 so as to have a spiral shape in the longitudinal direction in a tubular shape and one end connected to the cooling water supply part 100, A second cooling coil 313 connected to the second pipe 220 to damp the temperature of the second pipe 220 and a second cooling coil 313 inserted into the second pipe 220 and having an outer surface connected to the second pipe 220, And a third tube (230) adjacent to the inner surface,
The first cooling coil 311 and the second cooling coil 313 are formed such that the protrusions 311a and 313a are spaced apart from each other by a predetermined distance in the longitudinal direction of the first tube 210 and the second tube 220, Protrusions 311b and 313b,
The auxiliary cooling coil 320 is formed on the outer surface of at least one of the first tube 210 in which the first cooling coil 311 is formed or the second tube 220 in which the second cooling coil 313 is formed, And is inserted into the space portions 311b and 313b of the first or second cooling coils 311 and 313 so as to be fixed to the first or second tubes 210 and 220,
One end of the auxiliary cooling coil 320 is connected to the inlet side of the first or second cooling coils 311 and 313 as needed, and selectively opened and closed by a valve (not shown) to be supplied from the cooling water supply unit 100 The cooling water is supplied to the auxiliary cooling coil 320 by opening the valve when it is judged through the control unit (not shown) that the temperature reduction of the flue 200 is not smooth, 200, respectively,
The first and second cooling coils 311 and 313 are disposed on the outer surfaces of the first and second pipes 210 and 220 in the direction of the outlet where the waste heat is discharged in the direction of the combustion appliance F, The temperature of the flue 200 adjacent to the combustion device is rapidly cooled and the cooling rate is gradually decreased toward the exit direction of the flue 200 by varying the widths, And the temperature of the cooling water to be cooled is adjusted according to the position of the flue (200). The energy recycling system using the waste heat of the combustion device provided with the thermoelectric generating means capable of producing electricity. A cooling water supply unit 100 installed outside the combustion apparatus F for supplying cooling water;
A flue 200 installed at least one in the combustion device F for collecting waste heat generated in the combustion device F and discharging it to the outside;
A cooling means (300) provided for heat exchange with the cooling water supplied from the cooling water supply unit (100) so as to reduce the temperature of each of the flames (200) heated by the waste heat;
A heat exchanger (400) connected to the cooling means (300) so as to allow the heat exchanged cooling water to flow through the cooling means (300) and generating heat exchange water by mutually exchanging heat with water supplied and stored from the outside;
A heat storage tank 500 for receiving the heat exchange water generated through the heat exchanger 400 so that the heat exchange water accommodated therein can be used as heating water or hot water of the heating execution zone 600; And
A thermoelectric module 710 disposed adjacent to the combustion device F to absorb the temperature of the waste heat and the outside air of the flue 200 and to generate electricity by self-temperature variation; a thermoelectric module 710 (700) including a battery (720) to which electricity is charged,
One end of the flue 200 is connected to the cooling water supply unit 100 and the other end of the flue 200 is connected to the heat exchanger 400 A first cooling coil 311 connected to the first pipe 210 to reduce the temperature of the first pipe 210 and a second cooling coil 311 inserted into the first pipe 210 and having an outer surface adjacent to the inner surface of the first pipe 210, A second pipe 220 installed on the outer surface of the second pipe 220 so as to have a spiral shape in the longitudinal direction in a tubular shape and one end connected to the cooling water supply part 100, A second cooling coil 313 connected to the second pipe 220 to damp the temperature of the second pipe 220 and a second cooling coil 313 inserted into the second pipe 220 and having an outer surface connected to the second pipe 220, And a third tube (230) adjacent to the inner surface,
The second cooling coil 313 is protruded to form a space 313b adjacent to the protrusion 313a at a predetermined distance in the longitudinal direction of the second tube 220. In the space 313b, 1 protrusion 311a formed in the cooling coil 311 is inserted,
The second cooling coil 313 has a space 313b having a width different from the width of the space 313b in the direction of the outlet where the waste heat is discharged in the direction of the combustion device F when the second cooling coil 31 is formed on the outer surface of the second pipe 220, The temperature of the adjacent flue 200 is rapidly cooled and the cooling rate is gradually decreased as it goes toward the exit direction of the flue 200 so that the temperature of the flue 200 having different temperature ranges Wherein the thermoelectric generator is provided with a thermoelectric generator capable of producing electricity. 3. The method according to claim 1 or 2,
The heat storage tank 500
And a second outlet 513 not connected to the accommodation space 515 is formed on the outer surface of the housing 515. The first outlet 511 is connected to the accommodation space 515 and the second outlet 513 is connected to the accommodation space 515, A body 510;
And an inlet for introducing the heat exchange water generated through the heat exchanger 400 is formed in the body 510. The heat exchange water introduced through the inlet may be separated and used as heating or hot water of the heating execution zone 600 A three-way valve (520) comprising a plurality of outlets which can be discharged; And
One end is connected to one of the plurality of outlets of the three-way valve 520 and the other end is connected to the second outlet 513, And a coin tube (530) formed to supply only the heating water required for heating,
Wherein the coin tube (530) can be maintained at a predetermined temperature by the temperature of the heat exchange water accommodated in the accommodation space (515). The thermoelectric generator Recycling system.

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