KR20070076914A - Burner system and controlling method for the same - Google Patents

Abstract

A burner system and a method of controlling the same are provided to supply a sufficient amount of air to satisfy a caloric value desired by a user of the burner system. A burner system includes an outer case(10), a burner main body, a first gas supply apparatus. The outer case has a control panel installed thereon. The control panel includes buttons(41) for controlling the burner system. A glass plate is installed at an upper end of the outer case to locate an object to be heated. An air suction port is formed at the outer case to suck the air. The air suction port is in communication with the exterior of the burner system. The burner main body includes a burner chamber(110), a burner housing(130), and a heating member. The first gas supply apparatus is installed at the outer wall of the burner chamber.

Description

Burner System and Controlling Method for the same

1 is a perspective view schematically showing a burner system according to the present invention.

Figure 2 is a longitudinal sectional view schematically showing a burner system according to the present invention.

3 is a view showing a burner body provided in the burner system of FIG.

4 is an enlarged view of a portion A of FIG. 3;

5 is a view showing another embodiment of a burner body according to the present invention.

Figure 6 is a plan view schematically showing the main part of another embodiment of the burner system according to the present invention.

Figure 7 is a plan view schematically showing the main part of another embodiment of a burner system according to the present invention.

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

10: outer case 20: exhaust duct

100: burner main body 110: burner chamber

120: heating member 130: burner housing

210: nozzle 220: diffusion member

310: blower fan 320: auxiliary air supply member

410: gas supply pipe 430: air supply passage

500: control unit 600: damper

700: mixing chamber

The present invention relates to a burner system and a control method thereof, and more particularly, to a burner system and a control method thereof capable of improving combustion performance.

In general, a burner means a device that mixes fuel with air and burns it. As the burner, a Bunsen burner which injects gas fuel through a predetermined pipe and inhales air by burning the gas fuel by using a lower air pressure in the vicinity of the gas fuel is used.

A burner system having a conventional Bunsen burner is configured to include a burner body in which a mixed gas mixed with fuel and air is introduced and combusted, and a glass installed on the burner body.

The gas fuel introduced into the burner body is burned to heat the heating member provided in the burner body. The heated heating member emits radiant heat, and the glass is heated by the radiant heat. Then, a predetermined object (hereinafter referred to as a 'heated body') placed on the glass is heated.

As described above, the conventional burner system is supplied with the air required for combustion by the air pressure difference around the gas fuel when the gas fuel is supplied to the burner body. Specifically, when gas fuel is injected from the nozzle to the burner body, a low pressure is formed around the gas fuel because the flow speed of the gas fuel flowing into the burner body is considerably high. At this time, the air which is at a standstill near the nozzle has a relatively high pressure. As a result, the air which has been stopped by the pressure difference of the fluid is sucked into the burner body.

However, in the conventional burner system, the air is supplied only by the pressure difference of the air, so that sufficient air is not supplied when a significant amount of heat is required. Therefore, in the burner body, incomplete combustion occurs, resulting in a lower combustion efficiency, and an exhaust gas harmful to a human body including carbon monoxide increases.

In addition, since the air flowing into the burner main body is supplied only when fuel flows into the burner main body, there is still a mixed gas in which fuel and air are mixed inside the burner main body after the combustion of the fuel is finished. The mixed gas remaining in the burner body has a problem that the safety of the burner is lowered because there is a risk of explosion by sudden ignition when the burner is re-ignited.

In addition, in the conventional burner, even when the combustion of fuel is terminated, since the heating member installed in the burner body continuously emits radiant heat, the temperature of the glass installed on the upper portion of the burner body continues to increase for a predetermined time. This causes problems such as excessive heating of the heated object and an increase in room temperature.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a burner system excellent in stability and a control method thereof.

Another object of the present invention is to provide a burner system and a control method thereof that can reduce exhaust gas and improve combustion performance.

It is still another object of the present invention to provide a burner system and a method of controlling the same, which can supply a sufficient amount of air to satisfy a required amount of heat of a user.

In order to achieve the above object, the present invention is a gas supply pipe provided for supplying gas fuel, an air supply passage provided for supplying air, a burner chamber into which the air and the gas fuel is introduced and an upper portion of the burner chamber. A burner body having a burner housing installed in the burner housing and configured to form a predetermined space therein, an air amount controlling device for controlling the amount of air flowing into the burner body according to a required amount of heat, and to supply gas fuel and air into the burner chamber It provides a burner system including a gas supply device which is installed on the outside of the burner chamber.

The gas supply device may include a diffusion member installed while penetrating the outer wall of the burner chamber and a nozzle for injecting fuel into the diffusion member.

The air amount control device may include a damper installed at an inlet of the diffusion member to adjust the air amount introduced into the diffusion member.

In addition, the gas supply device may include a mixing chamber for providing a space that is pre-mixed before the air and gas fuel is introduced into the burner chamber.

In addition, the air amount control device may include a flow control valve for controlling the flow rate of the gas discharged from the mixing chamber.

The burner system may further include a blowing fan installed at one side of the air supply passage to forcibly flow air on the air supply passage.

The blowing fan is preferably rotated in accordance with the amount of heat required.

According to another embodiment of the present invention, the present invention is a burner chamber to which air and gas fuel are supplied, and a burner housing installed in an upper portion of the burner chamber and forming a predetermined space therein, and heated by combustion of the air and gas fuel. It provides a burner system including a burner body having a heating member, a first gas supply device for supplying air and gaseous fuel into the burner chamber, and a second gas supply device for supplying air directly into the burner housing. do.

The second gas supply device may include an auxiliary air supply member, which is a passage through which air is directly sucked into the burner housing, and a blowing fan for forcibly flowing air into the burner housing.

The second gas supply device preferably supplies air into the burner housing before the air and the gaseous fuel inside the burner chamber are burned in order to prevent sudden ignition.

In addition, the second gas supply device preferably supplies air into the burner housing after the air and the gas fuel inside the burner chamber are burned in order to prevent the temperature rise after combustion.

The burner system preferably allows exhaust gases remaining in a plurality of burner bodies to be discharged through one exhaust duct after combustion of the gaseous fuel.

According to another embodiment of the present invention, the present invention provides a method for controlling the amount of air introduced according to the required amount of heat, supplying air and gaseous fuel to a burner body, and preventing the rise of the surrounding temperature after combustion. And supplying air to the burner body after combustion of the gas, and discharging the exhaust gas remaining in the burner body.

The control method of the burner system may include supplying only air to the burner chamber to prevent sudden ignition inside the burner body before supplying gas fuel to the burner body.

The supplying air and gaseous fuel may include pre-mixing the air and gaseous fuel before entering the burner body.

Hereinafter, exemplary embodiments of a burner system and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, an embodiment of a burner system according to the present invention will be described in detail.

The burner system may be installed on one side of the kitchen or the like with the whole being exposed to the outside, or may be installed in a built-in type on the inner wall of the building. The burner system includes an outer case 10 forming an outer shape, a burner body 100 installed inside the outer case, and a first gas supply device for supplying air and gas fuel into the burner body 100. It is configured by.

A control panel 40 having buttons 41 for controlling the burner system is installed at the front of the outer case 10. The glass 30 is placed on the upper surface of the outer case 10 to place the object to be heated. In addition, the outer case 10 is formed with an air inlet 13 through which air is sucked, and the air inlet 13 is in communication with the outside of the burner system.

When the burner system is installed in the built-in type, the outer case 10 is installed to have the same height as other household appliances of the built-in type. In addition, an oven for cooking may be installed inside the outer case, and a heat supply device for supplying heat to the oven may be installed.

The burner body 100 includes a burner chamber 110 to which air and gas fuel are supplied, a burner housing 130 installed above the burner chamber, and a heating member heated by combustion of the air and gas fuel. 120).

The burner chamber 110 has a cylindrical shape with an open top, and a first gas supply device is installed on an outer wall of the burner chamber. The burner chamber 110 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.

The upper end of the burner chamber is provided with a heating member mounting portion 111 is installed a heating member 120, the upper portion of the heating member 120 gasket (Gasket) for adjusting the surface area of the heating member 120 ( Not shown) is installed.

The burner housing 130 is installed on the burner chamber while pressing the edge of the heating member 120. In addition, the burner housing 130 is formed with a circular opening 131 through which radiant energy radiated from the heating member 120 passes.

Therefore, the burner housing 130 blocks the heat of the heating member 120 from being discharged to the outside, and serves to transmit the radiant heat of the heating member to the glass 30.

In addition, the burner housing 130 forms a predetermined space therein, the space allows heat of the heating member 120 to be transmitted to the glass 30 in the form of radiant heat, and exhaust gas after combustion is discharged. Act as a passageway.

The first gas supply device includes a diffusion member 220 installed through the outer wall of the burner chamber and a nozzle 210 for injecting fuel into the diffusion member. The first gas supply device may be symmetrically installed on the outer circumferential surface of the burner chamber 110 to uniformly supply air and gas fuel into the burner chamber 110.

An end of the diffusion member 220 positioned inside the burner chamber 110 is 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.

One side of the nozzle 210 is installed at a predetermined interval from the diffusion member 220, and the other side of the nozzle is connected to the gas supply pipe 410 for supplying gas fuel. Gas fuel injected from the nozzle 210 is introduced into the diffusion member 220. At this time, since the flow velocity of the gas fuel introduced into the diffusion member 220 is considerably high, a low pressure is formed around the gas fuel. 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, the gas supply pipe 410 is provided with a first pressure sensor 411 for measuring the pressure of the gas fuel. The first pressure sensor 411 is connected to a control unit 500 that can adjust the amount of gas fuel supplied through the gas supply pipe 410.

In addition, the burner system is provided with an air amount control device for controlling the amount of air flowing into the burner body 100 according to the amount of heat required. The air amount control device includes a damper 600 for adjusting the amount of air introduced into the diffusion member 220.

The damper 600 is installed at the inlet of the diffusion member 220 to partially open and close the inlet of the diffusion member. The damper 600 may be provided to be movable in the vertical direction of the diffusion member inlet, it may be rotatably provided in front of the diffusion member inlet. The shape and the opening and closing direction of the damper 600 may have any shape. As a result, the degree of opening and closing of the inlet of the diffusion member may vary depending on the shape of the damper or may vary depending on the direction of movement of the damper.

Of course, the air amount control device may include a louver 420 installed in the outer case and a second pressure sensor 421 for measuring the air pressure flowing into the outer case through the louver 420.

The second pressure sensor 421 is connected to the control unit 500, the control unit 500 controls the opening and closing degree of the louver 420 based on the air pressure measured by the pressure sensor.

Specifically, when the amount of air required for combustion of the gas fuel is determined, the controller 500 adjusts the opening and closing degree of the louver 420. In addition, the air introduced through the louver 420 is introduced into the air inlet 13 while passing through the second pressure sensor 421. Then, the second pressure sensor 421 measures the pressure of the incoming air and sends it back to the control unit 500, the control unit 500 determines whether the amount of air introduced is appropriate. Of course, if the amount of air introduced is not suitable for the required amount of air, the controller 500 adjusts the louver 420 based on the air pressure transmitted from the second pressure sensor 421.

In addition, the burner system is provided with a second gas supply device for supplying air directly into the burner housing 130. The second gas supply device includes an auxiliary air supply member 320 which is a passage through which air is directly sucked into the burner housing 130 and a blowing fan 310 for forcibly flowing air into the burner housing.

The auxiliary air supply member 320 is provided at one side of the burner housing 130 to serve to connect the inside of the burner housing 130 and the inside of the outer case 10. The auxiliary air supply member 320 may be configured in the form of a housing hole formed in the outer wall of the burner housing. Of course, a hole guide for smoothing air flow may be installed at the edge of the housing hole.

The blowing fan 310 is installed on an exhaust duct 20 through which exhaust gas generated after combustion of gas fuel is discharged. Therefore, when the blowing fan 310 is operated, air existing in the outer case is introduced into the burner housing 130 through the auxiliary air supply member 320. In addition, since the exhaust duct 20 communicates with the burner housing 130, the exhaust gas remaining in the burner housing after combustion is also discharged to the outside through the exhaust duct 20.

The second gas supply device may continuously supply a predetermined amount of air into the burner body 100, or may supply air into the burner body before or after combustion of the gaseous fuel.

In a burner system provided with a plurality of burner bodies 100, the burner bodies 100 operate independently of each other, and exhaust gases after combustion in the burner bodies 100 are discharged to the outside through respective exhaust ducts. It may be. In addition, even though the plurality of burner bodies 100 operate independently of each other, the burner bodies 100 may be connected to one exhaust duct 20.

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

First, when the user operates the burner system, the control unit 500 supplies only air into the burner housing 130 by operating the blower fan 310 before supplying gas fuel into the burner chamber. After a predetermined time has elapsed, the controller 500 simultaneously supplies air and gas fuel to the burner body 100. Then, the gas fuel introduced into the burner chamber 110 is ignited by ignition means (not shown) installed on one side of the heating member 120.

Due to the combustion of the gas fuel, the heating member 120 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 120. The heat of the heating member 120 is transferred to the glass 30 installed on the burner housing 130 to heat the glass 30, the glass 30 to heat the heating object to a predetermined temperature. do.

The exhaust gas generated by the combustion of the gas fuel is discharged to the outside through the exhaust duct 20 via the space F formed between the glass 30 and the burner housing 130. After the combustion of the gas fuel is finished, the supply of gas fuel is stopped, and only air is supplied into the burner housing 130 by the second gas supply device.

The air supplied into the burner housing 130 cools the burner housing 130, the glass 30, the heating member 120, and at the same time, exhaust gas remaining in the burner housing 130. Will be released to the outside.

5, another embodiment of the burner body according to the present invention will be described.

The burner body according to the present embodiment includes a burner chamber 110 to which air and gas fuel are supplied, a burner housing 130 installed above the burner chamber, and a heating member heated by combustion of the air and gas fuel. And 120.

In addition, the burner body is provided with a second gas supply device for supplying air directly into the burner housing 130. The second gas supply device includes an auxiliary air supply member 3200 that serves as a passage through which air is directly sucked into the burner housing.

The auxiliary air supply member 3200 is installed while passing through the burner chamber 110 as a tubular member. Specifically, one end of the auxiliary air supply member 3200 is in communication with the bottom surface of the burner housing, the other end is in communication with the air supply passage (not shown) provided separately in the outer case. Therefore, the auxiliary air supply member 3200 does not communicate with the burner chamber 110. Of course, the auxiliary air supply member 3200 may be directly installed on one side of the burner housing without being formed while penetrating through the burner chamber 110.

In addition, an auxiliary blower fan (not shown) may be installed at the end of the air supply passage to force air into the auxiliary air supply member 3200. Therefore, only when it is necessary to supply a separate air into the burner housing 130, it is possible to directly supply air to the inside of the burner housing by operating the auxiliary blowing fan. That is, whether to supply air through the auxiliary air supply member 3200 may be determined according to a user's selection.

For example, air through the auxiliary air supply member 3200 may be supplied while combustion of the gas fuel is performed for complete combustion of the gas fuel. In addition, the gas fuel may be supplied before commencement of combustion, or may be supplied after combustion of the gas fuel is completed.

When the air is supplied to the inside of the burner housing 130 during the combustion of the gas fuel using the second gas supply device, it is possible to solve the problem of lack of air that may be generated due to the compactness of the burner body. Therefore, by supplying sufficient air in accordance with the required amount of heat to the burner main body it is possible to implement the complete combustion of the gas fuel can improve the combustion performance.

In addition, when the second gas supply device supplies air into the burner housing 130 before combustion of the gas fuel, the second gas supply device discharges gas fuel and exhaust gas remaining in the burner housing 130 to the outside. do. Therefore, when the gas fuel is ignited to operate the burner system, the explosion ignition by the remaining gas does not occur.

In addition, when the second gas supply device supplies air into the burner housing 130 after the combustion of the gas fuel, the temperature of the glass 30 installed on the burner housing 130 is lowered. That is, the air introduced from the outside through the auxiliary air supply member 320 serves to cool the burner housing 130, the glass 30, the heating member 120, and, consequently, overheating of the heating object. Will be prevented. In addition, the exhaust gas remaining in the burner housing 130 may be efficiently discharged.

6, another embodiment of a burner system according to the present invention will be described.

The burner system includes a blowing fan 3100 for forcibly flowing air into the burner body 100, unlike the burner system of the above-described embodiment. In addition, the burner system is provided with an air supply passage 430 for supplying only air and a gas supply pipe 410 for supplying only gas fuel.

The air supply passage 430 is in communication with the outside, the gas supply pipe 410 is connected to a gas supply source (not shown) installed on the outside. In addition, a nozzle 210 for injecting a gas fuel is installed at one end of the gas supply pipe 410. The nozzle 210 is spaced apart from the diffusion member 220 provided in the burner chamber by a predetermined interval, and is installed on the air supply passage at the same time.

Therefore, when gas fuel is injected from the nozzle 210 into the diffusion member 220, air in the vicinity of the gas fuel is also sucked into the diffusion member 220. Detailed description thereof is mentioned in the above embodiment, and thus detailed description thereof will be omitted.

On the other hand, the blowing fan 3100 installed at one end of the air supply passage allows for forced suction of external air into the air supply passage 430. Then, the air sucked into the air supply passage 430 is forcibly introduced into the burner body 100.

The blowing fan 3100 is controlled by a controller (not shown) provided in a burner system, and the rotation speed of the blowing fan 3100 is variable according to the amount of heat required by the burner system. When the gas fuel is burned in all three burner bodies, the rotation speed of the blower fan 3100 is increased, rather than the case where the gas fuel is burned in one burner body. This is because the sum of the amount of air required by the three burner bodies is greater than the amount of air required by the one burner body.

In addition, the air supply passage 430 may be provided with a damper (not shown) for controlling the amount of air supplied to each burner body (100). The damper is driven by a driving device (not shown) provided in a burner system, and the driving device is controlled by a controller.

Referring to Figure 7, another embodiment of a burner system according to the present invention will be described.

Unlike the above-described embodiments, the burner system according to the present embodiment allows air and gaseous fuel to be mixed before being introduced into the burner body 100. Specifically, the gas supply device for supplying air and gas fuel into the burner body includes a mixing chamber 700 for providing a space in which the gas fuel and air is mixed.

In addition, the burner system is provided with an air supply passage 430 for supplying only air into the mixing chamber 700 and a gas supply pipe 410 for supplying only gas fuel.

In addition, the burner system is provided with an air amount control device for controlling the amount of air flowing into the burner body. The air amount control device includes a flow control valve 6000 for controlling the flow rate of the gas discharged from the mixing chamber. The flow control valve 6000 is installed on a chamber discharge pipe 710 connecting the mixing chamber 700 and each burner body 100.

Specifically, the control unit (not shown) installed in the burner system controls the flow control valve 6000 in accordance with the amount of heat required by the burner body 100 to determine the amount of gas introduced into the mixing chamber 700. Will be adjusted.

The flow control valve 6000 may be a solenoid valve, but the present invention is not limited thereto, and any valve may be used as long as it can open and close the chamber discharge pipe 710.

The air volume control device may further include a blowing fan 3100 for forcibly flowing air into the mixing chamber 700. The blowing fan 3100 preferably has a variable rotation speed according to the amount of heat required by the burner body.

Looking at the process of supplying air and gas fuel in the burner system configured as described above are as follows.

Air and gaseous fuel supplied from the air supply passage 430 and the gas supply pipe 410 are met and mixed in the mixing chamber 700. In this case, the blower fan 3100 supplies an air amount suitable for the heat amount required by the burner body 100. That is, the blowing fan 3100 is controlled by a control unit, the rotation speed is changed according to the amount of air supplied. As a result, it is possible to prevent the shortage of air that may be generated due to the compactness of the burner body.

Thereafter, the mixed air and gaseous fuel are introduced into the burner body 100 after passing through the flow control valve 6000. At this time, the flow control valve 6000 is to adjust the amount of gas flowing into the burner body according to the amount of heat required.

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.

The effects of the above-described burner system and its control method are as follows.

First, there is an advantage that can supply sufficient air to the burner chamber to satisfy the required amount of heat by installing an air amount control device for controlling the amount of air flowing into the burner chamber.

In addition, by supplying sufficient air to the burner body, it is possible to completely burn the gas fuel, increase the combustion efficiency, there is an advantage that can reduce the exhaust gas.

Second, by installing a gas supply device capable of supplying air directly into the burner housing, it is possible to prevent explosion ignition before the combustion of the gas fuel, and to cool the burner system after the combustion of the gas fuel.

Third, by installing a blower fan on the exhaust duct, there is an advantage that the flow load can be reduced by discharging the exhaust gas remaining in the plurality of burner bodies through one exhaust duct.

Fourth, by installing a mixing chamber for pre-mixing the air and gaseous fuel introduced into the burner chamber, it is possible to completely burn the gas fuel has the advantage of increasing the combustion efficiency.

Claims (15)

A gas supply pipe provided to supply gas fuel; An air supply passage provided to supply air; A burner body having a burner chamber into which the air and gaseous fuel are introduced, and a burner housing disposed above the burner chamber and forming a predetermined space therein; An air amount controlling device controlling the amount of air flowing into the burner body according to the amount of heat required; And, And a gas supply device installed outside the burner chamber to supply gaseous fuel and air into the burner chamber. The method of claim 1, The gas supply device includes a diffusion member installed while penetrating the outer wall of the burner chamber and a nozzle for injecting fuel into the diffusion member. The method of claim 2, The air amount control device is installed in the inlet of the diffusion member, the burner system including a damper for adjusting the amount of air flowing into the diffusion member. The method of claim 1, The gas supply device includes a burner system including a mixing chamber for providing a space in which the air and gaseous fuel is pre-mixed before entering the burner chamber. The method of claim 4, wherein The air flow rate control device includes a burner system including a flow control valve for controlling the flow rate of the gas discharged from the mixing chamber. The method according to any one of claims 1 to 5, And a blower fan installed at one side of the air supply passage to forcibly flow air on the air supply passage. The method of claim 6, The blower fan is characterized in that the rotation speed is variable according to the amount of heat required. A burner body having a burner chamber to which air and gas fuel are supplied, a burner housing disposed above the burner chamber and defining a predetermined space therein, and a heating member heated by combustion of the air and gas fuel; A first gas supply device for supplying air and gaseous fuel into the burner chamber; And, And a second gas supply device for directly supplying air into the burner housing. The method of claim 8, And the second gas supply device includes an auxiliary air supply member which is a passage through which air is directly sucked into the burner housing and a blowing fan for forcibly flowing air into the burner housing. The method of claim 9, And the second gas supply device supplies air to the inside of the burner housing before the air and the gaseous fuel in the burner chamber are burned to prevent sudden ignition of the gaseous fuel. The method of claim 9, And the second gas supply device supplies air to the interior of the burner housing after the air and the gaseous fuel inside the burner chamber are burned in order to prevent the temperature rise after combustion. The method according to any one of claims 8 to 11, The exhaust gas remaining in the plurality of burner bodies after the combustion of the gas fuel is discharged through one exhaust duct. Controlling the amount of air introduced according to the amount of heat required, and supplying air and gaseous fuel to the burner body; And Supplying air to the burner body after combustion of the gaseous fuel and preventing exhaust gas remaining in the burner body in order to prevent an increase in ambient temperature after combustion. The method of claim 13, And supplying only air to the burner chamber to prevent sudden ignition within the burner body prior to supplying gas fuel to the burner body. The method according to claim 13 or 14, The step of supplying air and gaseous fuel comprises the step of mixing the air and gaseous fuel in advance before entering the burner body.

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