KR910003301Y1 - Heat exchanger - Google Patents

Abstract

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Description

Hermetic heat exchanger of hot air heater

1 is an exploded perspective view showing the main part of the present invention.

2 is a cross-sectional view showing the assembly structure of FIG. 1 in a fixed state in a cabinet.

3 is a front view of a heat exchanger of a warm air heater to which the present invention is applied.

4 is a side view of a heat exchanger of a warm air heater to which the present invention is applied.

5 is a main assembly cross-sectional view of the conventional design fixed to the cabinet.

6 is a perspective view of a warm air heater.

* Explanation of symbols for main parts of the drawings

1: hot air heater 2: heat exchanger

3: heat exchange pipe 4: combustion furnace

5: header 5b: support member

5c: Long groove 6: Connector

8: Fastening member

The present invention relates to a sealed heat exchanger of a hot air heater, and more particularly, to a sealed heat exchanger of a hot air heater capable of improving airtightness at each connection portion of a heat exchanger during operation of the heat exchanger.

Conventionally, assembling structure of a sealed heat exchanger of a warm air heater is a material having no elasticity at the other end in a state in which the combustion furnace 54 is caulking connected to one end of the heat exchange pipe 53 as shown in FIG. And inserting and fixing the header 55 to which the connecting pipe 56 is connected to the cabinet 51 to the fastening member 58 by using the fixing member 57 at the left and right sides of the combustion furnace 54 and the header 55. Since the structure is installed in the heat exchanger 52, the connection portion A between the heat exchange pipe 53 and the header 55 is affected by the thermal expansion generated by the heat exchanger 52 itself by the heating of the combustion furnace 54 during the operation of the heat exchanger 52. ), According to the relative position change, that is, the header 5 is changed to only the heat exchange pipe 53 in a state in which the header 5 is mounted on the left and right fixing members 7, so that the exhaust gas leaks and the heat exchange efficiency decreases. There was a flaw.

Therefore, the present invention connects the header to the heat exchanger pipe as a caulking means in order to solve the above advantages, and the connection tube is a flexible tube structure so that the airtightness at each connection part of the heat exchanger can be maintained under the influence of thermal expansion during heat exchanger operation. When described in detail the configuration and effect by the accompanying drawings to be drawn as follows.

In the heat exchanger (2) of the warm air conditioner (1), the combustion furnace upper plate (4a) and the header upper plate (5a) are connected to both ends of the heat exchange pipe (3) by means of a cocking means, and a support member (3) 4b) is attached to the combustion furnace (4), the header upper plate (5a) is attached to the support member (5b) having a long groove (5c), the header (5) to which the connecting pipe (6) of the elastic structure is connected The combustion furnace 4 and the header 5 are connected to each other while the left and right lower fixing members 7, 7 ′ (7) mounted on the respective supporting members 4a, 5a and the cabinet 1a. Supporting the cabinet 1a with the fastening member 8 through " " so that the header 4 can be changed in position through the long groove 5c according to the thermal expansion, thereby ensuring airtightness at each connection part according to the thermal expansion of the heat exchanger 2. The reference numeral 9 is a blower, 10 is a rubber tube, 11 is an inlet, 12 is an outlet, and 13 is an exhaust pipe.

Referring to the effect of the present invention configured as described above are as follows.

When the user operates the hot air heater 1 to heat the room, the air sucked by the rotational force of the blower 9 is supplied into the combustion furnace 4 of the heat exchanger 2 through the rubber tube 10 and burned. While maintaining the combustion state of the furnace 4, the high-temperature exhaust gas generated during combustion is also heat exchanged through the heat exchange pipe 3 connected to the combustion furnace 4, the combustion furnace 4 and the cocking means. The heat exchange pipe 3 is heated while being discharged to the header 5 connected to the pipe 3 and the cocking means. At this time, the indoor air sucked into the cabinet 1a through the inlet 11 is contacted with the outer circumferential surface of the heated heat exchange pipe 3 to be heat-exchanged, that is, converted into warm air and discharged into the room through the discharge port 12. Raise the temperature.

On the other hand, the exhaust gas collected in the header 5 through the heat exchange pipe 3 is discharged to the outside through the exhaust pipe 13 along the connecting pipe 6 of the elastic structure.

In the heat exchanger 2 operated as described above, the combustion furnace 4 and the header 5 are connected to the both ends of the heat exchange pipe 3 by means of a cocking means, and the structure of the connection pipe 6 connected to the exhaust pipe 13 can be flexibly applied. The support member 5b attached to the header 5 has a long groove 5c into which the fastening member 8 passed through the left and right fixing members 7 and 7 'is inserted. Therefore, although the heat expansion is generated while the heat exchanger 2 itself is heated by the continuous combustion of the combustion furnace 4, the header 5 cocked to the heat exchange pipe 3 has a header support member due to the influence of thermal expansion force. The connecting plate 4 is contracted in the direction of arrow A along the tightening member 8 inserted into the long groove 5c of (5b), and the position is changed in the direction of arrow B, so that each connection portion of the heat exchanger 2 is particularly heat exchange pipe. It is possible to maintain confidentiality at the connection between (3) and header (5).

In addition, since the combustion furnace 4 and the header 5 are assembled in the state where the combustion furnace upper plate 4a and the header upper plate 5a are assembled at both ends of the heat exchanger 2, the assembling work is convenient.

As described above, the present invention has a structure in which the heat exchange pipe 3 and the header 5 are connected to each other by a cocking means, and one side of the header 5 is connected to the connecting tube 6 having a flexible structure. In the structure, it is a very practical design that can solve the weakness of gas leakage by changing the relative position at each connection part due to the thermal expansion, that is, the gap is generated.

Claims (1)

In the heat exchanger (2) structure of the hot air heater (1), the combustion furnace (4) and the header (5) are connected to both ends of the heat exchange pipe (3), and the header (5) is cocked at one end of the heat exchange pipe (3). Connected to the connecting pipe 6 having a flexible pipe structure to one side of the header 5, and a long groove 5c is formed in the supporting member 5b attached to the header 5, according to thermal expansion. The heat exchanger of the hot air heater, characterized in that the header (5) is configured to be variable in position through the long groove (5c) to maintain the airtight at each connection portion.