A heat exchanger for the heater

专利摘要:
The present invention relates to a heat exchanger for a hot air fan to heat exchange the hot gas generated by burning the fuel to the inside, the interior air passes through the outer surface, in particular by improving the structure of the heat exchanger, by thermal expansion and contraction The present invention relates to a heat exchanger for a hot air fan, which prevents cracks from being generated and reduces noise generated by cracks. The heat exchanger for a hot air blower according to the present invention is installed on the upper side of the combustion chamber and is provided with a first chamber to which combustion gas is supplied, a second chamber installed to face the first chamber, and a surface facing each of the first and second chambers. A plurality of heat exchange pipes installed between the first and second covers for sealing the first and second chambers and the first and second covers to allow the combustion gas to heat exchange while reciprocating the first and second chambers. In the heat exchanger for a hot air fan comprising a, the first and second covers are characterized in that the reinforcing portion is relatively thick in comparison with other parts in the site where the heat exchange pipe is installed.
公开号:KR20030043046A
申请号:KR1020010074006
申请日:2001-11-26
公开日:2003-06-02
发明作者:김형수
申请人:주식회사 엘지이아이；
IPC主号:

专利说明:

Heat exchanger for hot air heater {A heat exchanger for the heater}
[17] The present invention relates to a heat exchanger for a hot air fan to heat exchange the hot gas generated by burning the fuel to the inside, the interior air passes through the outer surface, in particular by improving the structure of the heat exchanger, by thermal expansion and contraction The present invention relates to a heat exchanger for a hot air fan, which prevents cracks from being generated and reduces noise generated by cracks.
[18] In general, the air conditioner is a device for forcibly sucking the air in the room and discharging it to the room by heating, cooling, dehumidifying, etc., and maintaining the air in the room comfortably. Although there are many types of air conditioners such as integrated type, separate type, ceiling buried type, wall-hung type, duct type, etc. due to its structural features, the description will be given only to the upright type air heater installed indoors.
[19] 1 is an exploded perspective view showing a warm air heater according to the prior art.
[20] The warmer is a cabinet 10 having an inlet 12 and an outlet 14 formed therein, a blower 22 installed inside the inlet 12 to forcibly suck indoor air, and the blower 22. A combustion chamber 24 in which air and fuel are combusted so as to supply heat to indoor air introduced by the air, a combustion fan (not shown) for blowing a mixture of air and fuel into the combustion chamber 24, and the combustion chamber ( A burner (not shown) generating a flame at 24 and the combustion gas supplied from the combustion chamber 24 pass through the inside, and indoor air passes through the outer wall, and the heat exchanged combustion gas is discharged to the outside. It is configured to include a heat exchanger (30) connected to the exhaust pipe (26).
[21] 2 is a cross-sectional view showing a heat exchanger for a hot air blower according to the prior art, Figure 3 is a cross-sectional view showing a cover of the heat exchanger for a hot air blower according to the prior art.
[22] The heat exchanger 30 is connected to the combustion chamber 24 and installed to face the first chamber 32a to which the combustion gas combusted in the combustion chamber 24 is supplied, and the first chamber 32a at a predetermined interval. It consists of a 2nd chamber 32b and the heat exchange pipe 38 connected between the 1st chamber 32a and the 2nd chamber 32b.
[23] The first and second chambers 32 are formed in a container shape to form a predetermined space, and the open surfaces are disposed to face each other, and each of the open surfaces is provided with panel-shaped first and second covers 34. The first and second covers 34 are provided with a plurality of holes 34c, and the heat exchange pipes 38 are installed between the holes 34c facing each other to form a heat exchanger.
[24] Here, the heat exchange pipe 38 has an end thereof inserted into the hole 34c of the first and second covers 34, and is fixed to the first and second covers 34 by a caulking operation by pecking the joint.
[25] In addition, a first guide panel 36a for guiding the combustion gas supplied from the combustion chamber to the plurality of first heat exchange pipes 38a is installed in the first chamber 32a, and the first chamber 32a is provided within the second chamber 32b. The 2nd guide panel 36b which guides the combustion gas supplied from the 1st heat exchange pipe 38a to the 2nd heat exchange pipe 38b is provided.
[26] That is, when the combustion gas combusted in the combustion chamber is supplied to the first chamber 32a, it is guided while hitting the first guide panel 36a and flows into the second chamber 32b through the first heat exchange pipe 38a. The combustion gas introduced into the second chamber 32b is guided to the second heat exchange pipe 38b by the second guide panel 36b, and the combustion gas passing through the second heat exchange pipe 38b is transferred to the first chamber (b). 32a) flows back to the exhaust pipe 26 through the third heat exchange pipe 38c.
[27] Looking at the operation of the heater according to the prior art configured as described above are as follows.
[28] First, when power is applied, a combustion fan is driven to inject a mixer, which is generated by mixing fuel supplied from a fuel tank with air, to the combustion chamber 24, and at the same time, flames are generated from the burner, so that the combustion chamber 24 Combustion takes place.
[29] Thereafter, the combustion gas generated in the combustion chamber 24 passes through the heat exchanger 30 to perform a heat exchange operation and is discharged to the outside along the exhaust pipe 26.
[30] At this time, the indoor air introduced by the operation of the blower fan 22 is heated while being in contact with the outer wall of the combustion chamber 24 and the heat exchanger 30, and the heated air is discharged into the room through the discharge port 14 to be heated. Work.
[31] However, since the heat exchanger for the hot air heater according to the prior art is installed so that the heat exchange pipe 38 is fixed to the cover 34 of the chamber 32 by a caulking operation, since the thermal expansion and contraction are repeated frequently, the heat exchange pipe 38 ), And cracks are generated at the connecting portion between the first and second covers 34, the noise increases when the hot air fan is operated by the cracks, and the life of the hot air fan is shortened.
[32] The present invention has been made in order to solve the above problems of the prior art, by improving the structure of the portion where the heat exchange pipe and the chamber is connected, to suppress the generation of cracks even if repeated thermal expansion and contraction is generated during operation It is an object of the present invention to provide a heat exchanger for a hot air fan capable of performing stable operation with reduced noise.
[1] 1 is an exploded perspective view showing a warm air heater according to the prior art,
[2] Figure 2 is a cross-sectional view showing a heat exchanger for a hot air heater according to the prior art,
[3] 3 is a front view and a cross-sectional view showing a cover of a heat exchanger for a hot air heater according to the prior art;
[4] 4 is a configuration diagram showing a warm air fan according to the present invention,
[5] 5 is a cross-sectional view showing a heat exchanger for a warm air fan according to the present invention;
[6] 6 is a front view and a cross-sectional view showing a cover of a heat exchanger for a warm air heater according to the present invention;
[7] 7 is a graph showing a change in stress that varies depending on the thickness of the cover of the heat exchanger for a warm air heater according to the present invention.
[8] <Explanation of symbols on main parts of the drawings>
[9] 70: heat exchanger 72: chamber
[10] 72a: first chamber 72b: second chamber
[11] 74: Cover 74a: First Cover
[12] 74b: second cover 74c: hole
[13] 74d: reinforcement portion 76: guide panel
[14] 76a: first guide panel 76b: second guide panel
[15] 78: heat exchange pipe 78a: first heat exchange pipe
[16] 78b: second heat exchange pipe 78c: third heat exchange pipe
[33] The heat exchanger for a hot air blower according to the present invention for solving the above problems is installed in the upper side of the combustion chamber, the first chamber is supplied with the combustion gas, the second chamber is installed to face the first chamber, the first, second A first cover and a second cover installed on opposite sides of the chamber to seal the first and second chambers, and installed between the first cover and the second cover, so that combustion gas reciprocates the first and second chambers. A heat exchanger for a hot air fan comprising a plurality of heat exchange pipes to be exchanged, wherein the first and second covers have a reinforcing part having a relatively thicker thickness than that of other parts in a portion where the heat exchange pipe is installed. .
[34] Hereinafter, an embodiment of a heat exchanger for a warm air fan according to the present invention will be described in detail with reference to the accompanying drawings.
[35] 4 is a configuration diagram showing a warm air fan according to the present invention.
[36] The air blower according to the present invention is introduced by the cabinet 50 having the suction port and the discharge port 52, a convection fan 54 installed inside the suction port to forcibly suck indoor air, and the convection fan 54. The heat exchanger 70 is installed above the convection fan 54 so as to absorb heat while the indoor air is contacted, and a mixture of fuel and air is supplied to supply hot gas to the heat exchanger 70. And the combustion chamber 60 which burns by the burner 62 is comprised.
[37] In addition, the fuel is supplied to the combustion chamber 60, the combustion fan 64 is installed on one side of the combustion chamber 60 so that the burned gas can be discharged to the outside, and the fuel in the combustion chamber 60 The ignition device 62 is installed at one side of the combustion chamber 60 so that combustion can be started, and the heat exchanger can be discharged to the outside in contact with the indoor air in the heat exchanger 70 to change the low-temperature combustion gas to the outside. An exhaust pipe 66 connected to the machine 70 is installed.
[38] 5 is a cross-sectional view showing a heat exchanger for a hot air blower according to the present invention, Figure 6 is a front view and a cross-sectional view showing a cover of the heat exchanger for hot air according to the present invention.
[39] The heat exchanger 70 is connected to the combustion chamber 60 so as to face the first chamber 72a to which the combustion gas combusted in the combustion chamber 60 flows and the first chamber 72a at a predetermined interval. A second chamber 72b disposed in the first chamber, first, second and third heat exchange pipes 78 connected between the first chamber 72a and the second chamber 72b for heat exchange, and the heat exchange pipe It is composed of first and second covers 74 installed in the first and second chambers 72 so that 78 can be connected to the first and second chambers 72.
[40] In addition, a first guide panel 76a installed in the first chamber 72a to guide the combustion gas introduced from the combustion chamber 60 to the first heat exchange pipe 78a, and the second chamber 72a. A second guide panel 76b is installed in the chamber and guides the combustion gas introduced from the first heat exchange pipe 78a to the second heat exchange pipe 78b.
[41] The first and second chambers 72 are formed in a shape of a container forming a predetermined space, and the open surfaces thereof are disposed to face each other, and the first and second covers 74 are installed on the open surfaces. The first and second covers 74 are formed with a plurality of holes 74c into which the heat exchange pipes 78 are inserted, and the thickness of the periphery of the holes 74c is relatively thick compared to other parts, thereby improving strength. A portion 74d is formed.
[42] The first heat exchange pipe 78a is installed in the hole 74c formed at the bottom thereof so that the holes 74c are arranged in three rows so as to be parallel to the left and right directions, and the second heat exchanger is installed in the central hole 74c. The third heat exchange pipe 78c is installed in the pipe 78b and the hole 74c at the upper end thereof.
[43] The first heat exchange pipe 78a and the second heat exchange pipe 78b are partitioned by the first guide panel 76a in the first chamber 72a, and the second chamber 72b is the second guide. The second heat exchange pipe 78b and the third heat exchange pipe 78c are partitioned by the panel 76b.
[44] In addition, the reinforcing portion (74d) is compared with the other portions of the thickness so as to suppress the occurrence of cracks while repeated expansion and contraction of the thermal expansion and contraction at the portion where the heat exchange pipe 78 and the cover 74 is connected As formed relatively thicker, the thickness is most suitably about 1.2 mm as shown in the graph of Figure 7 produced by a number of experiments.
[45] In addition, the reinforcing portion 74d is formed around the hole 74c forming three rows in the left and right directions, and is formed in a forming structure forming three rows like the hole 74c.
[46] Looking at the operation of the heat exchanger for a hot air heater according to the present invention configured as described above are as follows.
[47] First, when power is applied, a combustion fan 64 is driven to inject a mixer, which is generated by mixing fuel supplied from a fuel tank with air, to the combustion chamber 60, and at the same time, flames are generated in the burner 62. Combustion takes place in the combustion chamber 60.
[48] Thereafter, the combustion gas generated in the combustion chamber 60 passes through the heat exchanger 70 to perform a heat exchange operation and is discharged to the outside along the exhaust pipe 66.
[49] At this time, the indoor air introduced by the operation of the blower fan 54 is heated in contact with the outer wall of the combustion chamber 60 and the heat exchanger 70, the heated air is discharged into the room through the discharge port 52 and heated Work.
[50] Here, since the reinforcing portion 74d is formed around the hole 74c in which the heat exchange pipe 78 is inserted, the first and second covers 74 of the heat exchanger 70 repeat the ignition and combustion of the warm air fan for a long time. Even if the thermal expansion and contraction of the generated heat exchanger 70 continues, the generation of cracks is suppressed.
[51] The heat exchanger for a hot air blower according to the present invention configured as described above is formed with a relatively thick thickness compared to other parts of the heat exchange pipe is installed, bar heat expansion and contraction because it is formed to a suitable thickness by a number of experiments It is possible to prevent the cracks are generated repeatedly to achieve a stable operation with reduced noise generated by the cracks, there is an advantage that can extend the life of the heat exchanger.

权利要求:
Claims (4)
[1" claim-type="Currently amended] A first chamber installed above the combustion chamber and supplied with combustion gas, a second chamber installed to face the first chamber, and installed on opposite surfaces of the first and second chambers, respectively; And a plurality of heat exchange pipes installed between the first and second covers for sealing the first cover and the second cover to exchange heat with the combustion gas reciprocating the first and second chambers. In;
The first and second covers are heat exchangers for hot air heaters, characterized in that the reinforcing portion is relatively thicker than the other portions are formed in the site where the heat exchange pipe is installed.
[2" claim-type="Currently amended] The method of claim 1,
The heat exchange pipe is installed to form three rows in the vertical direction, and the inner wall of the first chamber has a row of first heat exchange pipes installed at a lower end thereof and a row of second heat exchange pipes installed at a center thereof. A first guide panel for partitioning the heat sink, and a second guide panel for partitioning the heat of the second heat exchange pipe installed at the center and the heat of the third heat exchange pipe installed at the top of the inner wall of the second chamber. Heat exchanger for hot air heater, characterized in that the installation.
[3" claim-type="Currently amended] The method of claim 1,
The reinforcement part is formed to be long in the left and right directions so that the heat exchange pipes forming one row are all inserted into the first and second covers through the reinforcement part, and a plurality of holes into which the heat exchange pipe is inserted are formed. Heat exchanger for warm air fan.
[4" claim-type="Currently amended] The method of claim 1,
The reinforcing part is a heat exchanger for a hot air fan, characterized in that formed in three rows so that the first, second, third heat exchange pipes can be installed respectively.

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同族专利:

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-11-26|Application filed by 주식회사 엘지이아이

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2001-11-26|Priority to KR1020010074006A

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2003-06-02|Publication of KR20030043046A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020010074006A|KR20030043046A|2001-11-26|2001-11-26|A heat exchanger for the heater|