KR100575187B1 - a door of a heat exchanger for a condensing gas boiler - Google Patents

Abstract

The present invention relates to a door of a heat exchanger for a condensing gas boiler, and more particularly, to minimize the discharge of combustion heat to the outside through the door coupled to the front of the housing,

It has a sensible heat exchanger and a latent heat exchanger with a diaphragm interposed in the interior of the housing, and a door in which the coupling flange formed on the front side of the housing and the packing inserted into the flange formed on the inner side with a plurality of fixing bolts abut each other. 1. A heat exchanger of a condensing gas boiler, comprising: an air chamber portion embedded in the inner surface of the packing so as to prevent the packing from being deformed by the heat of combustion in the flange into which the packing is inserted. Relates to a door of a heat exchanger.

Description

Door of a heat exchanger for a condensing gas boiler}

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

Figure 2 is a longitudinal sectional view schematically showing the combined state according to FIG.

3 is an enlarged cross-sectional view of the main portion of part A according to FIG. 2;

Figure 4 is an enlarged cross-sectional view of the main portion schematically showing another embodiment of the present invention.

Figure 5 is an enlarged cross-sectional view of the main portion schematically showing another embodiment of the present invention.

6 is a longitudinal sectional view schematically showing a main part of a conventional heat exchanger of a condensing gas boiler.

7 is an enlarged cross-sectional view of the main portion of part B according to FIG. 6;

Explanation of symbols for the main parts of the drawings

10: air chamber part

   12: air chamber groove 14: insulation

20: heat insulation

   22: heat insulation member

100: heat exchanger

   110 housing 115 coupling flange

   120: sensible heat exchanger 130: latent heat exchanger

   140: door 141: insulation

   142: flange 142a: packing

The present invention relates to a door of a heat exchanger for a condensing gas boiler, and more particularly to a door of the heat exchanger for condensing gas boiler to minimize the emission of combustion heat to the outside through the door coupled to the front of the housing. will be.

Generally, various types of boilers are installed in the home as a means of receiving heating and hot water, and the boilers are divided into oil boilers and gas boilers. It is installed on one side of the boiler room or veranda where the interference with the user does not occur as much as possible.

Among the various boilers used as described above, condensing gas boilers that can maximize thermal efficiency with minimal fuel consumption in recent years have been popularized, and a known heat exchanger used in the condensing gas boilers is commonly used by burners. It is divided into a sensible heat exchanger that is in direct contact with sensible heat and a latent heat exchanger that preheats the heating water supplied using latent heat of exhaust gas passing through the sensible heat exchanger and supplies the heating water to the sensible heat exchanger.

Thus, a conventional condensing heat exchanger composed of a sensible heat exchanger and a latent heat exchanger is typically provided with a blowing fan, a fuel supply nozzle, and a burner at an upper portion of the housing, and an outer side of each heat exchange pipe inside the lower housing of the burner. Each of the sensible heat exchanger and the latent heat exchanger configured to weld each heat exchange fin are sequentially installed, and the condensate discharge pipe and the exhaust pipe are connected to the lower portion of the housing.

However, in the condensing type heat exchanger used in such a condensing gas boiler, the volume of the blower fan located in the upper part of the housing, the sensible heat exchanger and the latent heat exchanger located in the upper and lower parts of the housing is considerably increased. As a result, the overall volume of the boiler also had a problem.

In order to solve this problem, a coil with a diaphragm 112 interposed in the inside of the housing 110 having the front open as shown in FIGS. 6 and 7 so that a more efficient heat exchange can be achieved with a minimum volume. Coupling flange formed on the front surface having a sensible heat exchanger 120 and a latent heat exchanger (130) consisting of each of the heat exchange pipes (122, 132) wound in the form, the front of the housing 110 is closed The heat exchanger 100 to which the door 140 is mounted with the 115 and the plurality of fixing bolts is drawn and used.

In the above, the door 140 is equipped with a fuel supply pipe 160 which is supplied with fuel by the turbo fan 150 mounted on the outer side at the bottom, and the inner surface of the door 140 ignites the fuel supplied from the fuel supply pipe to the sensible heat. The burner 170 is fixed as a packing by the fuel supply pipe 160 to burn in the exchange unit 120.

In addition, the inner surface of the door 140 is in contact with the coupling flange to the heat insulating material 141 and the flange 142 formed to the outside to maintain the airtightness so that the heat of combustion in the sensible heat exchange unit 120 is not discharged to the outside. The packing 142a is inserted.

The latent heat exchange pipe is connected to a supply pipe (not shown) to which external heating water is supplied, and a discharge pipe (not shown) to discharge hot water heated to the sensible heat exchanger pipe.

Accordingly, as the overall structure of the heat exchanger was formed into a cylindrical shape by the heat exchange pipe wound in the coil shape, the heat exchanger had an advantage of simpler structure and significantly reduced volume while increasing heat exchange efficiency.

However, the packing, which is coupled to the flange of the door so that the combustion heat of the sensible heat exchanger is not discharged to the outside, has a flange in a state where the high temperature combustion heat is primarily blocked from the heat insulating material coupled to the inner side of the door due to frequent use of the boiler. As the deformation such as carbonization or melting occurs in contact with the high temperature heat transmitted continuously through, the airtightness is decreased, and the heat of combustion of the sensible heat exchanger is released to the outside through the deformed portion of the packing due to the decrease in the airtightness. This caused a problem of lowering combustion efficiency.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, its purpose is to prevent the deformation of the packing inserted into the flange of the door coupled to the front surface of the heat exchanger used in the condensing gas boiler sensible heat It is to minimize the discharge of the heat of combustion of the heat exchanger to the outside.

Another object of the present invention is to more effectively block the heat of combustion transferred to the packing.

Another object of the present invention is to minimize the heat of combustion transferred to the packing.

The present invention for achieving the above object is provided with a sensible heat exchanger and a latent heat exchanger with a diaphragm in the interior of the housing, the flange formed on the inner surface with a coupling flange and a plurality of fixing bolts formed on the front of the housing In a heat exchanger of a condensing gas boiler having a door mounted to abut the packing inserted into the air, the air impregnated in the inside of the packing to prevent the packing from being deformed by the heat of combustion in the flange into which the packing is inserted. And a chamber portion.

The air chamber portion may be formed of a plurality of air chamber grooves in a divided form.

Each air insulator is inserted into the air chamber groove.

The inner flange of the air chamber portion is characterized in that it comprises a heat insulating portion is inserted.

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

1 is an exploded perspective view showing main parts of the present invention, FIG. 2 is a longitudinal cross-sectional view schematically illustrating a coupled state according to FIG. 1, and FIG. 3 is an enlarged cross-sectional view of a main part of part A of FIG. 2.

As shown, the sensible heat exchanger 120 and the latent heat exchanger 130, each of which consists of heat exchange pipes 122 and 132 wound in a coil form with a diaphragm 112 interposed therebetween. And a packing 142a inserted into a flange 142 formed on an inner surface of the coupling flange 115 formed on the front surface of the housing 110 and a plurality of fixing bolts so that combustion heat of the sensible heat exchanger is not discharged to the outside. It is provided with a door 140 is mounted so as to abut, the fuel supply pipe 160 is equipped with a turbo fan 150 so that the door 140 can be supplied as a fuel in a state in which air and fuel is mixed to the outer side on the bottom side In the heat exchanger 100 of the condensing gas boiler is installed on the inner surface, the heat insulating material 141 and the burner 170 to block the high temperature of the sensible heat exchanger primary, such as packing by the fuel supply pipe 160 in the ,

In the present invention, the packing 142a is inserted into the flange 142 into which the combustion heat is transferred to the packing so as to prevent the packing from being carbonized or deformed, such as melting, by the heat of combustion. It is shown to have an air chamber portion 10 for blocking the secondary blocked primarily in the heat insulating material 141 coupled to the inner side of the door.

Accordingly, the high temperature combustion heat generated in the sensible heat exchanger is first blocked by the heat insulating material coupled to the inner surface of the door before being directly transferred to the packing, and then the air chamber part is secondarily blocked and simultaneously transferred to the air chamber. The high heat of combustion is canceled in the air chamber part.

Therefore, by preventing the packing from carbonization or deformation such as melting by the heat of combustion, the heat of combustion can be prevented from being released to the outside as the packing maintains the airtightness in close contact with the coupling flange of the housing.

On the other hand, the air chamber portion 10 is preferably formed of a plurality of air chamber grooves 12 in a divided form, rather than being formed in an integral form connected to each other.

In the above, the air chamber portion is formed of a plurality of air chamber grooves in a divided form because it is possible to more effectively block the transfer of combustion heat from the air chamber grooves in the divided form than in a single space.

In other words, one space has the disadvantage that the overall temperature rises within a short time, but by dispersing it to a plurality of air chamber grooves can be more effectively blocked in the process of transmitting the heat of combustion, dispersing the heat of combustion in several parts Therefore, it also has ancillary conditions that can effectively block the transmission of combustion heat for a long time.

4 is an enlarged cross-sectional view illustrating main parts schematically showing another embodiment of the present invention.

In the above configuration as shown, to more effectively block the transmission of the heat of combustion to the packing,

Insulation material inserted into the air chamber groove 12 is inserted into the air chamber groove 12 rather than blocking combustion heat only by the air in the air chamber groove by inserting each heat insulating material 14 such as a known heat insulating material or quartz material into the air chamber groove 12. By absorbing the heat of combustion delivered by the, it is to have a condition that can more effectively block the heat of combustion transmitted to the packing.

5 is a partially enlarged cross-sectional view schematically showing still another embodiment of the present invention.

In the above configuration as shown, in order to be able to minimize the transfer of combustion heat to the packing,

The inner flange 142 of the air chamber part 10 is shown to have a heat insulating portion 20 inserted with a heat insulating member 22, such as a separate known ceramic rope.

Accordingly, after the heat of combustion is primarily insulated from the heat insulator 141 coupled to the inner surface of the door, the heat is secondarily insulated from the heat insulator of the heat insulator, and then the air chamber of the rear side may be insulated from the third. As a result, more efficient heat insulation is achieved, thereby minimizing the transfer of combustion heat to the packing.

As described above, in the heat exchanger of the condensing gas boiler, the present invention forms an air chamber part with a flange into which a packing is inserted in the inner side of the door so as to be coupled to the front coupling flange of the housing to prevent the combustion heat from being emitted. As a result of preventing the deformation of the packing by the air chamber, the packing is continuously maintained without losing airtightness in the coupling flange, thereby preventing the combustion heat from being released to the outside, thereby preventing the combustion efficiency from being lowered. will be.                     

In addition, as the air chamber portion is formed into a plurality of divided air chamber grooves, the combustion heat is more effectively blocked from being transmitted to the packing, which also has the effect of minimizing the deformation of the packing.

In addition, by the heat insulating material inserted into the air chamber groove has a heat absorbing heat from the heat absorbing material to the packing to have a more effective effect of blocking.

In addition, by further comprising a heat insulating portion in which the heat insulating member is inserted before the air chamber groove through which the heat of combustion is transmitted, the heat of the heat is more effectively blocked by the heat insulating portion once more, and thus the heat of heat is more effectively blocked from the air chamber so that the heat of combustion is transferred to the packing. It will also have an effect that can be minimized.

Claims (4)

It has a sensible heat exchanger and a latent heat exchanger with a diaphragm interposed in the interior of the housing, and a door in which the coupling flange formed on the front side of the housing and the packing inserted into the flange formed on the inner side with a plurality of fixing bolts abut each other. In the heat exchanger of a condensing gas boiler, Condensing gas boiler characterized in that it comprises an air chamber portion 10 embedded in the surface of the inside of the packing to prevent the packing from being deformed by the heat of combustion in the flange 142 is inserted into the packing (142a) Door of heat exchanger. The door of a heat exchanger of claim 1, wherein the air chamber portion (10) is formed of a plurality of air chamber grooves (12) in a divided form. 3. The door of a heat exchanger for a condensing gas boiler (100) according to claim 2, characterized in that each heat insulating material (14) is inserted into said air chamber groove (12). The condensing gas according to any one of claims 1 to 3, wherein the inner flange 142 of the air chamber portion 10 includes a heat insulating portion 20 into which a heat insulating member 22 is inserted. Door of heat exchanger for boiler.

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