KR20010057005A - Intake pipe and exhaust pipe of heating apparatus - Google Patents

Abstract

PURPOSE: A supply and exhaust pipe prevents rainwater from flowing into a main body of a heater by being freely bent. CONSTITUTION: An outer pipe(52) has a bellows part(52') formed on the middle thereof so as to be freely bent according to surrounding environment. An inner pipe(51) has a bellows part(51'). The bellows parts(51', 52') are connected by a supporting device so as to be bent simultaneously. The supporting device comprises multiple supporting rods, supporters and silicon. The supporting rods connect the bellows part(51') of the inner pipe(51) with the bellow part(52') of the outer pipe(52). The supporters are attached to the bellows(51') of the inner pipe(51) to support one ends of the supporting rods. The silicon fixes the other ends of the supporting rods to the bellows part(52') of the outer pipe(52).

Description

Intake pipe and exhaust pipe of heating apparatus}

The present invention relates to a supply and exhaust pipe that is used as a passage through which the air necessary for combustion is burned in the heater or the exhaust gas is discharged, and in particular, by changing the shape of the supply and exhaust pipe, it is easy to install regardless of installation conditions, and the effects of rain, etc. The present invention relates to a radiator supply and exhaust pipe for preventing damage to a product caused by heat.

In general, a heater is a device that increases the temperature of the room by supplying heat to maintain a comfortable room temperature in winter. Heaters are classified into electric heaters, steam heaters, hot water heaters, hot air heaters, etc. according to the heat source used, in the present invention by heating the air using the heat generated by burning the fuel to discharge the air warmed into the room to heat the room I will refer to the warm air heater.

In general, a warm air heater, when the power switch is turned on as shown in FIG. 1, the burner 2 is ignited and combusted in the combustion chamber 4, and the combustion chamber 4 and the heat exchanger 6 are heated by the heat of combustion. . When the blower device 10 is operated in this state, the air passing through the combustion chamber 4 and the heat exchanger 6 is heated, and the heated air is supplied to the room through the blower grill 8.

At this time, when the external air is supplied to the burner 2 through the air supply pipe 12, the fuel is mixed with the fuel to combust in the combustion chamber 6, and the exhaust gas after the combustion is exhausted through the heat exchanger 6 to the exhaust pipe 16. It is made to be discharged to the outside through. Here, the air supply pipe and the exhaust pipe is formed integrally called the air supply pipe 12, the structure of the air supply pipe simplifies the structure of the product and at the same time increases the temperature of the air supplied to the burner to facilitate the operation of the burner. .

The conventional air supply and exhaust pipe has an inner pipe 31 which is used as a passage through which the combustion gas is discharged as shown in FIG. 2, and is installed outside the inner pipe 31 and with an end of the inner pipe 31. Between the spot welding (W) is installed at the tip of the outer pipe 32 and the outer pipe 32 to allow the air introduced through the air supply hole 32 ′ to flow through the gap with the inner pipe 31 and backwind It is composed of a conical backflow prevention cam 33 to block the reverse flow of the combustion gas due to the smooth discharge of the combustion gas.

The conventional air supply and exhaust pipe configured as described above allows the air introduced between the outer pipe and the inner pipe to be supplied to the burner after being preheated by the exhaust gas flowing through the inner pipe.

Air introduced through the air supply hole 32 ′ formed in the external pipe 32 of the air supply and exhaust pipe 30 flows through the space between the internal pipe 31 and the external pipe 32, and the air is supplied to the burner. To burn fuel. At this time, since the hot combustion gas flows through the inner pipe 31, the air flowing between the inner pipe 31 and the outer pipe 32 is preheated through heat exchange with the combustion gas, and the preheated air is supplied to the burner. The combustion efficiency of the fuel is improved.

The combustion gas generated by the combustion of the fuel flows to the inner pipe 31 through the exhaust pipe after heat-exchanging with the heating air in the heat exchanger, and the outside through the tip of the outer pipe 32 connected to the inner pipe 31. To be discharged. At this time, the reverse flow prevention cam 33 is installed at the front end of the outer pipe 32 so that the combustion gas is not discharged in the axial direction from the front end of the supply / exhaust pipe 30, but along the inclined surface of the backflow prevention cam 33. It is discharged to the side of 32. Therefore, the combustion gas is smoothly discharged even when the backwind is blown in the axial direction with respect to the supply / exhaust pipe 30.

However, the conventional heat supply and exhaust pipe for the heater configured as described above is fixed in shape so that rainwater may be introduced through the air supply holes, etc., so that rainwater is delivered to the inside of the product when rainy season or heavy rain falls. There is a problem that adversely affects the performance of the product.

That is, the supply and exhaust pipe is based on the downward installation of the end facing down, but in the case of the actual installation work may be installed upward for reasons of difficulty or surrounding environment. When the air supply pipe is installed upward, when rainwater flows into the air supply pipe, the rain water flows into the inside of the product, thereby adversely affecting the relay portion installed at the bottom of the product.

The present invention has been made to solve the above problems of the prior art, by placing a pleated portion in the exhaust pipe to change the shape of the exhaust pipe in accordance with the surrounding environment, even if the exhaust pipe is installed upward, rainwater does not flow into the interior. It is an object of the present invention to provide a heat supply and exhaust pipe for a heater that can prevent adverse effects on the performance of the product.

1 is a perspective view showing a general heater,

2 is a configuration diagram showing a conventional air supply and exhaust pipe for the heater,

3 is a configuration diagram showing the air supply and exhaust pipe for the heater according to the present invention,

4 is a cross-sectional view showing the "A-A" cross section of FIG.

5 is a configuration diagram showing another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

50: supply and exhaust pipe 51: internal pipe

52: outer pipe 51 ', 52': corrugation

53: backflow prevention cam 54: air supply hole

55: support rod 56: support

70: supply and exhaust pipe 71: outer pipe

72: wrinkles 73: inner pipe

73a: fixed end 73b: insertion end

74: backflow prevention cam 75: O-ring

The present invention for achieving the above object is a spot welded between the inner pipe used as a passage for the combustion gas discharge, and the outer end of the inner pipe and the end of the inner pipe is introduced through the air supply hole In the gas supply and exhaust pipe for a heater comprising an outer pipe for allowing air to flow through the gap with the inner pipe, the outer pipe is characterized in that the corrugated portion is formed in the center so as to bend freely according to the surrounding environment.

In addition, the exhaust pipe for the heater including an inner pipe used as a passage for the combustion gas discharged, and an outer pipe installed outside the inner pipe and the air introduced through the air supply hole flows through the gap with the inner pipe. In the, the outer pipe is provided with a corrugation portion to change the length, the inner pipe is characterized in that the insertion end is inserted into the fixed end is separated into the fixed end and the insertion end.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 3 and 4, the air supply and exhaust pipe for the heater of the present invention is used as a passage through which the combustion gas is discharged, and an inner pipe 51 having a pleat portion 51 ′ in a central portion thereof, and It is installed on the outside and the spot welding (W) between the end of the inner pipe 51 so that the air introduced through the air supply hole 54 flows through the gap with the inner pipe 51 and also wrinkles at the center. An outer pipe 52 having a portion 52 ', and a plurality of supporting rods 55 connecting the corrugated portion 51' of the inner pipe 51 and the corrugated portion 52 'of the outer pipe 52 to each other. And a support 56 attached to the corrugation portion 51 'of the inner pipe 51 to support one end of the support rod 55, and the support rod to the corrugation portion 52' of the outer pipe 52. Installed at the front end of the silicon 57 and the outer pipe 52 fixing one end of the 55, the reverse of the combustion gas due to the backwind A is cut off, and consists of a non-return cam 53 of the cone such that the combustion gas is smoothly discharged.

The heat supply and exhaust pipe for the heater of the present invention configured as described above can change the shape of the supply and exhaust pipe according to the installation conditions so that rainwater introduced through the air supply hole does not flow into the main body.

When the corrugations 51 'and 52' are respectively formed in the middle of the inner pipe 51 through which the combustion gas is discharged and the outer pipe 52 through which the air supply air holes 54 are introduced, the exhaust pipe 50 is provided. ) Can be bent according to the installation conditions. That is, in principle, the exhaust pipe 50 is installed downward, but if downward installation is difficult due to the structure around the wall, the exhaust pipe 50 is installed upward, and then the exhaust pipe 50 is used by using the pleats 51 'and 52'. Bend the tip of the side down. At this time, when the outer pipe 52 is bent, the inner pipe 51 connected to the outer pipe 52 and the support rod 55 are bent together, thereby forming a natural deformation.

Here, the support rod 55 is installed between the inner pipe 51 and the outer pipe 52 when manufacturing the supply and exhaust pipe (50). First, the support 56 is fixed to the pleats 51 ′ of the inner pipe 51, and then the support rod 55 is inserted into the support 56 to fix the support 56. Subsequently, the outer pipe 52 is inserted and silicon 57 is injected between the pleats 52 'and the support rod 55 of the outer pipe 52 so that one end of the support rod 55 is the outer pipe 52. It is to be fixed to the pleats 52 '. Thus, the outer pipe 52 and the inner pipe 51 are integrally bent.

Figure 5 shows another embodiment of the present invention, to form a corrugation portion in the outer pipe and to separate the inner pipe to be able to modify the length of the air supply pipe. 5 is used as a passage through which the combustion gas is discharged and is divided into a fixed end 73a and an insertion end 73b so that the insertion end 73b can be inserted into the fixed end 73a. One inner pipe 73 and air installed at the outside of the inner pipe 73 and flowing through the air supply hole 71 ′ are allowed to flow through the gap with the inner pipe 73 and to be changed in length. It is provided between the outer pipe 71 having the pleats 72 and between the fixed end 73a and the insertion end 73b of the inner pipe 73 and between the outer pipe 71 and the insertion end 73b. O-ring 75 for hermetically sealing between the two and the end of the insertion end (73b) of the inner pipe (73) prevents the reverse flow of the combustion gas due to the backwind and prevents the combustion gas to be discharged smoothly ( 74).

Another embodiment of the present invention configured as described above to facilitate the installation by changing the length of the supply and exhaust pipe in accordance with the installation conditions.

The outer pipe 71 can change its length using the pleats 72, and the inner pipe 73 can change its length by sliding the insertion end 73b with respect to the fixed end 73a. Therefore, when the installation condition is good, the length of the supply and exhaust pipe 70 can be lengthened by drawing out the insertion end 73b to the outside and extending the corrugation part 72 of the outer pipe 71, and the installation condition is poor. In this case, the insertion end 73b may be inserted into the fixed end 73a as much as possible, and the length of the external pipe 71 may be reduced to reduce the length of the supply / exhaust pipe 70.

If the installation conditions are good, the length of the supply and exhaust pipe 70 is extended to block the combustion gas from flowing into the room, and if the installation position is not able to lengthen the length of the supply and exhaust pipe 70, the supply and exhaust pipe 70 By reducing the length of the means that it is possible to install the supply and exhaust pipe (70) satisfactorily regardless of the installation conditions.

As described above, since the air supply and exhaust pipe for the heater of the present invention can be installed so that the front end is always downward by bending the air supply and exhaust pipe, rainwater flows into the main body of the heater, thereby preventing malfunction of the relay device.

In addition, there is another advantage of bending the supply and exhaust pipe in accordance with the installation conditions or changing the length of the supply and exhaust pipe to install the supply and exhaust pipe well in bad conditions.

Claims (5)

An inner pipe used as a passage through which the combustion gas is discharged, and air welded through the air supply hole flows through the gap between the inner pipe and a spot welded between the inner pipe and the end of the inner pipe. In the radiator supply and exhaust pipe comprising an external pipe to The outer pipe is a heat supply and exhaust pipe for the heater, characterized in that the wrinkles formed in the center portion so as to bend freely according to the surrounding environment. The method of claim 1, The inner pipe is also provided with a pleat, the pleated portion of the inner pipe and the outer pipe is connected to the support means by the heating means, characterized in that bent at the same time. The method of claim 2, The support means includes a plurality of support rods connecting the corrugation portion of the inner pipe and the corrugation portion of the outer pipe to each other, a supporter attached to the corrugation portion of the inner pipe to support one end of the support rod, and the corrugation portion of the outer pipe. Heater exhaust pipe for the heater, characterized in that consisting of silicon fixing one end of the support bar. In the exhaust pipe for the heater comprising an inner pipe used as a passage for the combustion gas discharged, and an outer pipe installed outside the inner pipe and the air introduced through the air supply hole flows through the gap with the inner pipe. , The outer pipe is provided with a corrugation portion to change its length, the inner pipe is separated into a fixed end and the insertion end so that the insertion end can be inserted into the interior of the fixed end of the heater. The method of claim 4, wherein Air supply and exhaust pipe for a heater characterized in that the sealing means for sealing between the fixed end and the insertion end and between the outer pipe and the insertion end.