KR200184831Y1 - Combustion chamber air supply structure - Google Patents

Abstract

The present invention relates to a combustion chamber air supply structure of a gas boiler, and more specifically, to remove the insulation and to form an air induction plate along the outer circumferential surface of the burner to configure the combustion chamber so that air can flow between the burner and the combustion sulfa, The present invention relates to a combustion chamber air supply structure in which a baffle plate is installed between the air moving spaces to improve the secondary combustion efficiency of the burner by installing a baffle plate having a structure capable of increasing the air velocity.

In the combustion chamber air supply structure in which the baffle plate of the present invention is installed, the air induction plate 21 is installed to cover the outer circumferential surface of the burner 15 installed inside the combustion chamber 7, and the heat insulating material 13 attached to the inner wall of the combustion chamber is removed. To form a space having a certain distance (T), a plurality of wings (23a) inclined at a predetermined angle with respect to the air induction plate 21 in the space having a predetermined distance (T) is connected by a rod (23b) The baffle plate 23 is characterized in that it is installed.

Description

Combustion chamber air supply structure with baffle plate

The present invention relates to a combustion chamber air supply structure of a gas boiler, and more specifically, to remove the insulation and to form an air induction plate along the outer circumferential surface of the burner to configure the combustion chamber so that air can flow between the burner and the combustion sulfa, The present invention relates to a combustion chamber air supply structure in which a baffle plate having a structure capable of increasing air flow rate between the air moving spaces is installed to improve secondary combustion efficiency in a burner.

Gas boilers are increasingly being used because they have the advantage of reducing the environmental pollution by using a gas that is convenient in use and clean fuel. Gases, which are mainly used in gas boilers, are classified into LP gas and city gas.

The gas is combusted in a burner installed inside the combustion chamber. The burner burns fuel in the combustion chamber surrounding it and the generated heat moves to the upper side to heat the heat exchanger. In the heat exchanger, a pipe through which heating water passes is installed, and the temperature is raised by the heat generated by the burner.

1 and 2 are schematic configuration diagrams and side cross-sectional views respectively showing the positions of the combustion chamber 7 and the burner 15 installed in the combustion chamber of the conventionally used gas boiler 1.

As shown, the boiler 1 is provided with a combustion chamber 7 including a burner for burning fuel therein, a heat exchanger 5 is installed at an upper side of the combustion chamber 7, and a heat exchanger 5. In the upper portion of the exhaust flue 3 for discharging the combustion gas is provided. Between the combustion chamber 7 and the heat exchanger 5, the heat exchanger 5 and the exhaust flue 3 is sealed to withstand high temperatures in order to prevent the combustion gas from leaking.

In the arrangement state inside the combustion chamber 7, the burner 15 which receives the gas which flowed in through the gas valve 17 and burns is located in the center, and the air required for combustion in a burner is forcibly in the lower part of the combustion chamber 7; A high speed rotating blower fan 9 is provided.

In addition, the inner wall of the combustion chamber 7 is installed in close contact with the combustion chamber cover 11 to prevent heat generated in the burner 15 from being transferred to the outside through the inner wall of the combustion chamber 7. The heat insulator 13 is to block the combustion chamber wall surface, has a simple planar shape, and simply blocks heat transfer to the outside of the combustion chamber in a close and inserted state.

However, the heat insulating material 13 as described above has a structure in which the combustion chamber cover 11 is simply in contact with each other, and increases the thickness of the heat insulating material 13 to about 10t, or increases the volume of the combustion chamber 7 itself to contain a lot of heat. The material of the combustion chamber 7 was constructed using special steel sheets for high heat resistance.

Therefore, there was a factor of the cost increase of the insulation material, the production cost of the combustion chamber or the use of special steel plate. In addition, there was a problem that incomplete combustion occurs in secondary combustion because the air supplied from the lower part of the burner is not properly supplied during secondary combustion performed at the upper side of the burner.

The present invention is devised to solve the above problems, the object of the present invention is to allow air to flow between the combustion chamber inner wall and the burner to minimize the heat transfer to the outside to improve the durability of the combustion chamber and use of insulation In addition, the present invention provides a combustion chamber air supply structure in which a baffle plate is installed in which combustion heat efficiency is improved by supplying heated air into the combustion chamber.

Another object of the present invention is to provide a combustion chamber air supply structure in which a baffle plate is installed to prevent incomplete combustion during secondary combustion by increasing the flow rate of air supplied to the upper side of the burner to supply more sufficient air.

Combustion chamber air supply structure provided with a baffle plate of the present invention for achieving the above object, by installing an air induction plate to surround the outer peripheral surface of the burner is installed in the combustion chamber and remove the heat insulating material attached to the combustion chamber inner wall surface a certain distance (T) Forming an excitation space, characterized in that the baffle plate is installed in the space having a predetermined distance (T) is connected to the plurality of wings inclined at a predetermined angle with respect to the air induction plate by the rod.

1 is a schematic view showing a configuration of a conventionally used gas boiler;

2 is a side sectional view of a combustion chamber used in the related art in which a burner is installed therein;

3 is a side cross-sectional view of a combustion chamber in which an air induction plate and a baffle plate are installed according to the present invention;

4 is an external perspective view of a baffle plate according to the present invention.

<Description of the code | symbol about the principal part of drawing>

1: gas boiler, 3: exhaust flue,

5; Heat exchanger, 7: combustion chamber,

9: blowing fan, 11: combustion chamber cover,

13: insulation, 15: burner,

17: gas valve, 21: air induction plate,

23: baffle plate, 23a: wings,

23b: Load.

Hereinafter, the combustion chamber air supply structure in which the buff plate of the present invention is installed will be described in detail with reference to the accompanying drawings.

3 is a side sectional view of a combustion chamber 7 showing a combustion chamber air supply structure in which a baffle plate according to the present invention is installed. As shown, it can be seen that the space is formed by removing the heat insulating material 13 (see FIG. 2) which is installed in close contact with the inside of the combustion chamber cover 11 and being spaced apart by a predetermined interval T.

The space T of the space is preferably equal to or slightly wider than the space occupied by the heat insulating material 13. As is well known, air is a very good heat transfer means, so that the heat transferred from the burner 15 is prevented from leaking to the outside of the boiler 1 while moving in this space.

In addition, the air induction plate 21 is installed along the outer circumferential surface of the burner 15. The air induction plate 21 prevents the high temperature heat generated by the burner 15 from being directly transmitted to the combustion chamber cover 11 and prevents air moving through the space from being directly supplied to the burner 15. Therefore, it is essential that the air induction plate 21 is made of a material resistant to high temperatures, and steel sheets of such materials are commercially available.

It can be seen that the air induction plate 21 is configured in a rectangular shape to surround the entire outer circumferential surface of the burner 15. By such a configuration, the heat generated from the combustion of the fuel supplied through the burner 15 is mostly vertically raised because the heat emitted to the side by the air induction plate 21 is blocked.

Therefore, since heat is supplied to the heat exchanger 5 more than before, the thermal efficiency is increased. In addition, since the amount of heat emitted to the side is significantly reduced, it is possible to use the air cooling method without the need to install a conventional heat insulating material (13).

In addition, even higher combustion efficiency can be obtained at the time of secondary combustion generated on the upper side of the burner 15. This is because the air passing through the air induction plate 21 installed by the present invention is heated by the heat radiated to the side will have a higher temperature than the air directly supplied in the prior art. Therefore, there is an advantage that combustion is better than low temperature air.

In addition, the baffle plate 23 is further installed in a space having a predetermined interval T so that the air used in the secondary combustion is more abundantly supplied. The baffle plate 23 has a structure for increasing the flow rate of air, and the air is accelerated and supplied to the upper portion of the burner 15 while passing through the baffle plate 23.

Figure 4 is an embodiment showing the structure of the baffle plate 23 according to the present invention.

As shown, it can be seen that the plurality of wings 23a having a predetermined area are connected up and down by the rod 23b. Of course, it will be apparent to those skilled in the art that the shape of the blade 23a or the shape of the rod 23b can be changed. It is entirely possible to change to any structure that can increase the air flow rate more efficiently.

In the figure, the blades 23a are set at an angle with respect to the vertical line, that is, the angle at which the air hitting the bottom of the blade 23a can rise at the fastest speed. This is a value that can be changed depending on the size of the boiler's combustion chamber.

In addition, it is preferable to set the air supplied to the burner 15 to be supplied from a far side from the center of the burner. This is to ensure that the air required for secondary combustion is supplied to the upper side of the burner. Therefore, it is preferable that the inclined shape of the blades 23a be in a form in which one end portion facing the combustion chamber cover 11 and the other end portion facing the burner 15 face downward.

By this configuration, the air moving while contacting the combustion chamber cover 11 rises with a high flow rate, and the air flowing in close contact with the burner 15 is relatively slow in flow rate and is supplied to a position near the burner 15.

As described above, according to the present invention, air can flow between the inner wall of the combustion chamber and the burner, thereby minimizing heat transfer to the outside, thereby improving durability of the combustion chamber and reducing the use of heat insulator, and also supplying air to the upper side of the burner. By increasing the flow rate of the more rich air is configured to be supplied is an advantage that can prevent the incomplete combustion occurs during the secondary combustion.

Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that the present invention may be modified or changed within the spirit and scope of the present invention, and such modifications or changes are intended to be included in the appended claims of utility model registration. Will belong.

Claims (2)

In the combustion chamber structure of the gas boiler, an air induction plate 21 is installed to surround the outer circumferential surface of the burner 15 installed in the combustion chamber 7, and the heat insulating material 13 attached to the inner wall of the combustion chamber is removed for a predetermined distance. A combustion chamber air supply structure having a baffle plate provided with a space having a space (T), wherein a baffle plate (23) inclined with respect to the air induction plate (21) is installed in the space having a predetermined distance (T). 2. The baffle plate (23) according to claim 1, wherein a plurality of vanes (23a) are connected by a rod (23b) and one end of the vanes (23a) facing the combustion chamber cover (11) rises and faces the burners (15). Combustion chamber air supply structure is provided with a baffle plate, characterized in that the other end is fixed in a downward direction.