KR100751417B1 - Gas Burner and Heating device using the same - Google Patents

Abstract

The present invention relates to a gas burner and a heating apparatus using the same that can reduce the height of the overall system. The present invention provides a burner body having a burner chamber to which air and gas fuel are supplied, a burner housing installed at an upper portion of the burner chamber and forming a predetermined space therein, and a heating member heated by combustion of the air and gas fuel. And it provides a gas burner comprising a plurality of gas supply device which is installed on the outside of the burner chamber to supply air and gas fuel to the burner chamber and a heating device using the same.

According to the present invention, it is possible to reduce the overall height of the system and at the same time achieve uniform surface combustion.

Gas Burner, Burner Chamber, Diffusion Member, Gas Supply Device

Description

Gas burner and heating device using the same

1 is a cross-sectional view showing main parts of a first embodiment of a gas burner according to the present invention;

2 is a perspective view showing the inside of the gas burner shown in FIG.

3 is a perspective view showing the main part of a second embodiment of a gas burner according to the present invention;

4 is a plan view schematically showing the main part of a third embodiment of a gas burner according to the present invention;

5 is a plan view schematically showing the main part of a fourth embodiment of a gas burner according to the present invention;

Figure 6 is a perspective view showing an embodiment of a built-in heating device equipped with a gas burner according to the present invention.

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

20: burner housing 30: heating member

40: burner chamber 51, 52, 53: diffusion member

61, 62, 63: gas supply pipe 61a, 62a, 63a: nozzle

71, 72, 73: pressure recovery device 281, 283: air supply line

351: first supply pipe 353: second supply pipe

355 connector 360 mixing chamber

The present invention relates to a gas burner and a heating apparatus using the same, and more particularly, to a gas burner and a heating apparatus using the same that can improve combustion performance.

In general, a burner means a device that mixes fuel with air and burns it. The gas burner burns the mixed air and the gas fuel to heat the radiant, and heats a predetermined object by radiant heat generated when the radiant is heated. The gas burner is manufactured in various forms according to its use, and LPG, LNG, and the like are used as the gas fuel.

Conventional gas burners include a burner body in which air and gas fuel are introduced and combusted, and a glass installed on the burner body.

The burner body includes a burner chamber through which air and gas fuel are introduced, a burner housing installed at an upper portion of the burner chamber, and a burner mat heated by combustion of the gas fuel.

In the conventional gas burner having the above-described configuration, the gas fuel introduced into the burner body is burned to heat the burner mat. The heated burner mat emits radiant heat, and the radiant heat is transferred to the glass. Then, a predetermined object (hereinafter referred to as a 'heated body') placed on the glass is heated.

Here, the heat transferred from the burner mat to the glass is transmitted not only by radiation but also by convection. In addition, the heat transferred from the glass to the heated object is transferred by the conduction phenomenon. Of course, some of the heat transferred to the surface of the glass may be reflected back into the burner housing.

Thereafter, the combustion gas generated after the gas fuel and air are burned is discharged to the outside along the burner housing.

On the other hand, recently, the built-in heating device that can be built in the wall of the building is preferred. Since the height of the burner is limited in the built-in heating device, an electric heater is usually used without using a gas burner. However, since the electric heater requires a relatively large amount of power consumption, a problem arises in that the user who uses the electric heater has a considerable economic burden. Thus, attempts have been made to mount a gas burner on a built-in heating device.

However, when the conventional gas burner having the above-described configuration is mounted on the heating apparatus, many problems occur. Specifically, the burner chamber provided in the conventional gas burner is formed while having a constant height in order to store the gas fuel and air to be burned and to supply sufficient amount for combustion.

According to the inventor's view, the burner chamber height in a conventionally used gas burner should have a value of 25 mm or more. As a result, since the height of the burner chamber installed in the built-in heating apparatus has a certain limitation, the gas burner having a burner chamber height of 25 mm or more cannot be installed in the built-in heating apparatus.

When the height of the burner chamber is formed to be less than 25 mm and installed in the built-in heating apparatus, the gas fuel and air are not sufficiently mixed and the amount of air is insufficient to perform incomplete combustion.

As a result, the exhaust gas after combustion contains a large amount of carbon monoxide (CO), the amount of heat used is reduced, the time for heating the heating target is long, and there is a problem that the combustion efficiency is lowered.

In addition, a local flow deflection phenomenon occurs, and a phenomenon in which the amount of heat for heating the heated object is insufficient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a gas burner and a heating apparatus using the same, which can reduce the height of the entire system and increase the combustion efficiency.

Another object of the present invention is to provide a gas burner and a heating apparatus using the same, which can shorten the time for heating the heated object and reduce the exhaust gas after combustion.

Another object of the present invention to provide a gas burner and a heating device using the same that can reduce the economic burden of the user.

In order to achieve the above object, the present invention provides a burner chamber to which air and gas fuel are supplied, a burner housing installed at an upper portion of the burner chamber and forming a predetermined space therein, and combustion of the air and gas fuel. It provides a burner body having a heating member heated by the gas burner, and a gas burner including a plurality of gas supply device which is installed outside the burner chamber to supply air and gas fuel to the burner chamber.

The gas supply device may be provided symmetrically on an outer circumferential surface of the burner chamber, and may include a diffusion member installed through the outer wall of the burner chamber and a nozzle for injecting fuel into the diffusion member.

In order to spread the air and the gas fuel into the burner chamber widely, the diffusion member is preferably thin and wider toward the burner chamber.

The diffusion member has a tubular shape that becomes wider toward the burner chamber, and is preferably thin and wide in order to spread air and gas fuel into the burner chamber.

The gas supply device may include an air supply pipe for supplying air into the burner chamber and a gas supply pipe for supplying gas fuel into the burner chamber.

The air supply pipe and the gas supply pipe are preferably installed in a tangential direction on the outer circumferential surface of the burner chamber.

Preferably, the air supply pipe and the gas supply pipe are alternately installed along the outer circumferential surface of the burner chamber.

The gas supply device may include a mixing chamber for providing a space in which the gas fuel and air to be supplied and a mixed gas supply pipe for supplying the gas fuel and air mixed in the mixing chamber into the burner chamber.

The mixed gas supply pipe is preferably provided with a plurality of connecting pipes in communication with the interior of the burner chamber.

In addition, the connecting pipe is formed symmetrically on the outer circumferential surface of the burner chamber, it is preferable that the diameter of the connecting pipe is different from each other depending on the formed position.

The gas burner may further include a pressure recovery device for reducing the speed of the gas flowing into the burner chamber.

It is preferable that the height of the burner chamber is 10 mm or less.

According to another embodiment of the present invention, the present invention includes a gas burner, a glass installed on the upper part of the burner body of the gas burner, a heating device housing in which the gas burner is installed, and a control unit for controlling the gas burner. Provided is a built-in heating device including a control panel.

Hereinafter, with reference to the accompanying drawings, it will be described in detail preferred embodiments of the gas burner and the heating apparatus using the same according to the present invention.

1 and 2, a first embodiment of a gas burner according to the present invention will be described in detail.

The gas burner includes a burner body 100 in which gas fuel and air are introduced and combusted, and a gas supply device supplying gas fuel and air to the burner body. Of course, the upper portion of the burner body is provided with a glass 10 on which the object to be heated is placed.

The burner body 100 includes a burner chamber 40 to which air and gas fuel are supplied, a burner housing 20 installed above the burner chamber, and a heating member heated by combustion of the air and gas fuel. 30).

The burner chamber 40 has a cylindrical shape with an open top, and a gas supply device installation part 42 in which a gas supply device is installed is formed on the outer wall 41 of the burner chamber. The burner chamber 40 serves to provide a space for storing air and gas fuel for combustion, and at the same time serves to provide a space for mixing the air and gas fuel. Therefore, the larger the volume of the burner chamber 40 is advantageous for the efficiency of combustion, but in the built-in type heating apparatus, a limit is placed on the height of the burner chamber 40.

In the present invention, the height (T) of the burner chamber has a height suitable for the heating device of the built-in type. According to the inventor's view, the height of the burner chamber that can be tolerated in the built-in heating apparatus should be equal to or less than 10 mm.

Despite reducing the height of the burner chamber 40, a plurality of gas supply devices are installed on the outer wall of the burner chamber 40 to increase the combustion efficiency and reduce the amount of exhaust gas by implementing uniform surface combustion. do. The plurality of gas supply devices are symmetrically installed on the outer circumferential surface of the burner chamber 40 in order to uniformly supply air and gas fuel into the burner chamber.

The upper end of the burner chamber is provided with a heating member mounting portion 43 in which the heating member 30 is installed, and a gasket (not shown) for adjusting the surface area of the heating member 30 on the heating member 30. This is installed.

The burner housing 20 is installed on the burner chamber while pressing the edge of the heating member 30. In addition, the burner housing 20 is formed with a circular opening 21 through which radiant energy radiated from the heating member 30 passes.

Therefore, the burner housing 20 prevents the heat of the heating member from being discharged to the outside and transmits the heat of the heating member 30 to the glass 10 installed on the burner housing 20. Play a role.

In addition, the burner housing 20 forms a predetermined space F therein, which allows heat of the heating member 30 to be transmitted to the glass 10 in the form of radiant heat, and exhausted after combustion. It serves as a passage through which gas is discharged.

The heating member 30 is installed at the upper end of the burner chamber and is made of a good thermal conductivity material. The heating member 30 is a porous member through which gas fuel and air can pass and the gas fuel is burned on the upper surface of the heating member 30.

The heating member 30 may be installed in parallel with the burner housing 40, but may be installed with a predetermined inclination. In addition, the heating member 30 may be catalyst coated to lower the ignition point of the gas fuel. Specifically, the catalyst may be used to induce rapid ignition by lowering the activation energy when the air and the gas fuel react. An ignition device (not shown) is installed at one side of the heating member 30 to ignite the gas fuel mixed with the air.

In addition, the glass 10 which is heated by the radiant heat of the heating member 30 is installed on the burner housing 40. The glass 10 has a low coefficient of thermal expansion and heat-resistant glass that is hard to be broken even by a sudden change in temperature is used. Of course, the bottom surface of the glass may be provided with a temperature sensor for detecting the temperature of the glass 10.

The gas supply device includes diffusion members 51, 52, and 53 installed through the outer wall of the burner chamber 40 and nozzles 61a, 62a, and 63a for injecting fuel into the diffusion member.

The diffusion members 51, 52, and 53 are composed of three diffusion members provided on the outer wall of the burner chamber at intervals of 120 degrees. Of course, the number of the diffusion members is not limited, and the diffusion members may be provided symmetrically with equal intervals. Air and gaseous fuel discharged from the three diffusion members are uniformly distributed in the burner chamber, thereby achieving uniform surface combustion on the heating member surface.

Ends of the diffusion members 51, 52, and 53 positioned inside the burner chamber 40 are located on the same plane as the inner wall of the burner chamber. Of course, the end of the diffusion member located inside the burner chamber may be installed to protrude by a predetermined length from the inner wall of the burner chamber.

The nozzles 61a, 62a, and 63a are installed at predetermined intervals from the diffusion members 51, 52, and 53, and gas fuel is injected into the diffusion member through the nozzles. At this time, since the flow velocity of the gas fuel flowing into the diffusion member is considerably high, a low pressure is formed around the gas fuel. The air at rest near the nozzle then has a relatively high pressure. As a result, the air which is at rest due to the pressure difference of the fluid is sucked into the diffusion member.

In addition, pressure recovery devices 71, 72, and 73 are installed in the burner chamber to reduce the speed of the gas flowing into the burner chamber 40. That is, the pressure recovery devices 71, 72, and 73 serve to reduce the dynamic pressure of the fluid and increase the static pressure by reducing the speed of gas fuel and air introduced into the burner chamber. Therefore, since the gas fuel is not affected by the flow rate, combustion can be more uniformly implemented on the surface of the heating member.

The pressure recovery devices (71, 72, 73) are provided in front of the diffusion member based on the flow direction of the gas fuel and air with a predetermined interval with the diffusion members (51, 52, 53). The pressure recovery device (71, 72, 73) may comprise a porous member formed with a plurality of holes.

When viewed from the top of the burner body, the pressure recovery device (71, 72, 73) is preferably located outside the heating member. This is to allow the gas fuel and air to be delivered to the heating member in a reduced flow rate. In addition, the pressure recovery device (71, 72, 73) is a surface facing the diffusion member (51, 52, 53) in order to spread the gas introduced into the burner chamber evenly inside the burner chamber It is bent. Of course, the pressure recovery device may have a slit shape to adjust the flow direction of the gas fuel and the air passing through the diffusion member.

Looking at the operation of the gas burner configured as described above are as follows.

When the user puts the heating object on the upper surface of the glass 10 and operates the gas burner, the gas fuel flows quickly into the diffusion member at the nozzles 61a, 62a and 63a connected to the gas supply pipes 61, 62 and 63. Sprayed into. Then, the air around the nozzle is sucked into the diffusion member together with the gas fuel.

Air and gaseous fuel introduced into the burner chamber 40 flow to the upper portion of the burner chamber 40. The air and the gas fuel pass through the heating member 30 and are ignited by an ignition device installed at one side of the heating member 30. Then, the air and the gas fuel is uniformly burned on the surface of the heating member 30.

Due to the combustion of the air and the gas fuel, the heating member 30 is heated and simultaneously emits radiant heat. Of course, heat transfer by the convection phenomenon is also generated on the surface of the heating member. The heat of the heating member 30 is transferred to the glass 10 installed on the burner housing to heat the glass 10, the glass 30 heats the object placed on the glass to a predetermined temperature. .

Exhaust gas generated during the combustion of the air and gaseous fuel is discharged to the outside through the space (F) formed between the glass 10 and the burner housing 20.

Referring to FIG. 3, a second embodiment of a gas burner according to the present invention will be described.

Unlike the above-described embodiment, diffusion members 151, 152 and 153 are provided on the outer wall of the burner chamber according to the present embodiment to supply the air amount into the burner chamber.

The diffusion members 151, 152, and 153 have a tube shape that becomes wider toward the inside of the burner chamber 40. In addition, the diffusion members 151, 152, and 153 may be formed to have a thin thickness and a wide width in order to spread the air and the gas fuel into the burner chamber. Of course, the gas fuel introduced into the diffusion member is supplied through the gas supply pipes 61, 62 and 63 and the nozzles 61a, 62a and 63a.

The diffusion members 151, 152, and 153 are composed of three diffusion members provided on the outer wall 41 of the burner chamber at intervals of 120 degrees. Air and gaseous fuel discharged from the three diffusion members 151, 152, and 153 are evenly distributed throughout the burner chamber 40. In addition, when viewed from the top of the burner body, the extension lines of the outlet angle of the three diffusion members through which the gas fuel and air are discharged may be installed to surround the entire cross section of the burner chamber. Of course, when looking at the burner body from above, the extension lines of the outlet angle of the diffusion member may be installed to surround the entire heating member.

The diffusion members 151, 152, and 153 may be installed at the center of the burner chamber outer wall 41, but may be installed at the lower end of the burner chamber outer wall. In addition, pressure recovery devices 171, 172, and 173 are installed in the burner chamber 40 to reduce the speed of the gas flowing into the burner chamber.

The detailed description of the pressure recovery device is the same as in the case of the first embodiment described above. However, the pressure recovery device according to the present embodiment is bent in the inner direction of the burner chamber. Of course, the pressure recovery device may be bent in a direction opposite to the diffusion member.

4, a third embodiment of a gas burner according to the present invention will be described.

Unlike the above-described embodiments, the gas burner includes air supply pipes 261 and 263 for supplying only air and gas supply pipes 281 and 283 for supplying only gas fuel. The air supply pipes 261 and 263 and the gas supply pipes 281 and 283 respectively supply air and gas fuel into the burner chamber. In other words, air and gaseous fuel are introduced into the burner chamber 40 individually through respective paths and then mixed with each other.

The air supply pipes 261 and 263 and the gas supply pipes 281 and 283 are alternately installed along the outer circumferential surface of the burner chamber. The air and the gas fuel discharged through the air supply pipes 261 and 263 and the gas supply pipes 281 and 283 are discharged in the same rotational direction, that is, in a clockwise direction, not in a direction opposite to each other.

In addition, the gas supply pipes 281 and 283 and the air supply pipes 261 and 263 are provided in a tangential direction on the outer circumferential surface of the burner chamber. Therefore, the gas fuel and the air discharged from the gas supply pipe and the air supply pipe are mixed with each other while rotating along the clockwise direction.

In addition, a pressure recovery device 270 is installed in the burner chamber to reduce the speed of the gas flowing into the burner chamber. That is, the pressure recovery device 270 serves to reduce the dynamic pressure of the fluid and increase the static pressure by reducing the speed of the gas fuel and the air flowing into the burner chamber. In addition, the pressure recovery device is also configured to include a porous member serves to mix the air and gas fuel introduced.

The pressure recovery device 270 has a substantially circular ring shape, and is formed in the center of the burner chamber. In addition, when viewed from the top of the burner body, the pressure recovery device 270 is preferably located outside the heating member. This is to allow the gas fuel and air to be delivered to the heating member in a reduced flow rate. Of course, the pressure recovery device may be installed at the front end of the gas supply pipe or the air supply pipe through which the gas fuel and air are discharged.

5, a fourth embodiment of a gas burner according to the present invention will be described.

In the gas burner according to the present embodiment, air and gaseous fuel are mixed in advance before being introduced into the burner chamber 40 of the gas burner, unlike the above-described embodiments.

Specifically, the gas supply device for supplying air and gas fuel into the burner chamber 40, the mixing chamber 360 and the gas mixed in the mixing chamber 360 to provide a space for mixing the gas fuel and air It includes a mixed gas supply pipe for supplying fuel and air into the burner chamber (40).

In addition, the mixed gas supply pipe may be in direct communication with the first supply pipe 351 directly connected to the mixing chamber 360, the second supply pipe 353 surrounding the outer edge of the burner chamber, and the burner chamber. Connector 355. Here, the connection pipe 355 is a configuration corresponding to the diffusion members (51, 52, 53) in the first embodiment, the connection pipe 355 is a diffusion member (151, 152, 153) in the second embodiment As shown in the burner chamber, the width may be wider.

The mixing chamber 360 is connected to a gas supply pipe (not shown) and an air supply pipe (not shown) that supply gas fuel and air, respectively. The mixing chamber 360 is connected to the first supply pipe 351 through which the mixed gas fuel is discharged, and the first supply pipe 351 is connected to the second supply pipe 353. One side of the connection tube communicates with the second supply tube 353, and the other side of the connection tube passes through the outer wall 41 of the burner chamber and communicates with the burner chamber 40.

Therefore, the air and the gas fuel supplied from the air supply pipe and the gas supply pipe meet and mix in the mixing chamber 360, and the mixed air and the gas fuel are discharged to the outside of the mixing chamber through the first supply pipe 351. Air and gas fuel discharged to the outside of the mixing chamber 360 is moved around the outer periphery of the burner chamber along the second supply pipe (353). The air and the gas fuel are introduced into the burner chamber through the connection pipe 355 branched from the second supply pipe.

The connecting pipe 355 is symmetrically formed on the outer circumferential surface of the burner chamber 40. This is to uniformly supply air and gas fuel into the burner chamber. In addition, the diameter of the connector 355 may vary depending on the position where the connector 355 is formed. This is because the pressure of the air and gas fuel injected into the burner chamber 40 through the connection pipe 355 is changed as the connection pipe 355 moves away from the mixing chamber 360. Accordingly, the diameter of the connecting pipe 355 at a close distance from the mixing chamber 360 is large, and the diameter of the connecting pipe at a relatively long distance from the mixing chamber 360 is reduced, thereby allowing air and air into the burner chamber. Gas fuel flows evenly.

Referring to Figure 6, it will be described the heating apparatus is installed gas burner according to the present invention.

The heating apparatus is classified into a form in which an upper portion of a gas burner is exposed to the outside and a form in which the gas burner is installed inside. In addition, the heating device may be installed on one side of the kitchen, the entire system is exposed to the outside, or may be installed in a built-in form on the inner wall of the building. Hereinafter, the heating apparatus installed in the built-in format will be described.

As shown in FIG. 6, the built-in heating device includes a burner body 100, a glass 10 installed on the burner body, a heating device housing 410 on which the burner body is installed, It includes a control panel 430 is provided with a control unit for controlling the heating device.

The gas burner is positioned above the heating apparatus, and a glass 10 is installed on the gas burner to place a heated object. In addition, the heating device housing 410 in which the gas burner is installed is installed to have the same height as other home appliances of built-in type installed in the building inner wall 500.

The front of the heating device housing 410 is provided with a control panel 430 having buttons for controlling the heating device. Of course, a control unit for controlling the gas burner is installed inside the control panel. In addition, an oven 450 for another dish may be installed at the lower portion of the gas burner. In addition, a heat supply device 440 for supplying heat to the oven may be installed on the oven.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are within the scope of the present invention.

Referring to the effects of the above-described gas burner and the heating device using the same as follows.

First, by reducing the height of the burner chamber, by installing a plurality of gas supply device there is an advantage to implement a gas burner suitable for the built-in heating device.

Second, there is an advantage that even surface combustion can be realized on the surface of the heating member by uniformly supplying gaseous fuel and air into the burner chamber using a thin and wide diffusion member. As a result, the combustion efficiency is increased, and at the same time, there is an advantage of reducing the exhaust gas after combustion.

Third, by providing a plurality of gas supply devices symmetrically to supply sufficient air and gas fuel inside the burner chamber, there is an advantage in that the amount of heat used can be increased and the heating time of the heated object can be shortened.

Fourth, by installing a pressure recovery device in the burner chamber to reduce the speed of the air and gas fuel flowing into the burner chamber there is an advantage that can realize a uniform surface combustion on the surface of the heating member.

Claims (12)

A burner chamber to which air and gas fuel are supplied, a burner housing installed at an upper portion of the burner chamber and forming a predetermined space therein, and a heating installed at an upper portion of the burner chamber to be heated by combustion of the air and gas fuel A burner body having a member; And It includes a gas supply device for supplying a mixed gas of air and gas fuel to the burner chamber, The gas supply device includes a gas burner including a plurality of diffusion members symmetrically installed on an outer circumferential surface of the burner chamber so that the mixed gas is evenly supplied to the burner chamber. The method of claim 1, The gas supply device further comprises a nozzle for injecting gas fuel into the diffusion member. The method of claim 2, The diffusion member is a gas burner, characterized in that the width is wider toward the burner chamber. delete delete delete The method of claim 1, The gas supply device further comprises a mixing chamber providing a space in which the gas fuel and air are mixed, and a supply pipe supplying the mixed gas mixed in the mixing chamber to the diffusion member. The method of claim 7, wherein The supply pipe is a gas burner comprising a first supply pipe connected to the mixing chamber and a second supply pipe connected to the first supply pipe and surrounding an outer edge of the burner chamber. The method of claim 8, The plurality of diffusion member is a gas burner, characterized in that the diameter is different from each other formed position. The method according to any one of claims 1 to 3 or 7 to 9, Gas burner further comprises a pressure recovery device for reducing the speed of the mixed gas flowing into the burner chamber. The method of claim 10, Gas burner, characterized in that the burner chamber has a height of 10mm or less. A gas burner of claim 11; A glass installed on an upper part of the burner body of the gas burner; A heating device housing in which the gas burner is installed; Built-in heating device comprising a control panel having a control unit for controlling the gas burner.

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