KR20220170083A - Gas burner with non-powered variable damper - Google Patents

Abstract

The present invention relates to a gas burner including a non-powered variable damper. The gas burner includes: a blower fan having an inlet and an outlet; a burner device installed directly under the outlet and combusting by receiving mixed gas by having an inflow hole connected to the outlet; and a damper device installed in the inflow hole to guide the mixed gas so that the mixed gas flows in a diagonal direction toward a predetermined part of the burner device. When an open area of the damper device is controlled by the discharge pressure of the mixed gas discharged through the outlet, the small or large amount of the mixed gas colliding with the damper device is intensively moved in the diagonal direction toward the predetermined part of the burner device through the open area. Therefore, a flame ignited at the predetermined part of the burner device moves to a whole area of the burner device. According to the present invention, the damper device seals a front end when a backdraft occurs toward the damper device. Therefore, the damper device prevents the backdraft from entering the outlet. Moreover, the open area of the damper device is controlled to correspond to the discharge pressure of the mixed gas passing through the damper device. So, the damper device prevents the generation of vibration or a sympathetic sound caused by the mixed gas supplied to the burner device. While the mixed gas collides with the damper device, the mixed gas is intensively moved toward the predetermined part of the burner device in the diagonal direction. Therefore, the small amount of the mixed gas easily reaches the predetermined part of the burner device, and an ignition performance of the burner device can be maintained by the small amount of the mixed gas. Accordingly, the gas burner can reduce the amount of supplied mixed gas while maintaining ignition performance of the burner device with the small amount of the mixed gas.

Description

Gas burner with non-powered variable damper {Gas burner with non-powered variable damper}

The present invention relates to a gas burner, and more particularly, by supplying a mixed gas to an upper end of a burner device so that the mixed gas passes through a damper device, but at this time, the open area of the damper device is set to correspond to the discharge pressure of the mixed gas. The present invention relates to a gas burner having a non-powered variable damper which is adjusted so that a mixed gas colliding with a damper device is intensively supplied to a predetermined portion of a burner device through an open area.

In general, a gas boiler heats water by using combustion heat generated when fuel is burned, and circulates the heated and stored water to a heating pipe installed in the room by a circulation pump that forcibly circulates the heated water to heat the room. It is also a device that supplies heated water as hot water to bathrooms and kitchens.

A gas boiler using such a general gas as fuel heats heating water by exchanging heat with a gas burner that generates heat inside a combustion chamber using gas introduced through a gas supply pipe and heat from the gas burner and exhaust heat. It has a heat exchanger.

Patent Document 1 shows the structure of a heat exchanger for a conventional boiler. Referring to this, a metal fiber burner is formed on the inside in a hollow shape with an open bottom, and a gas inlet pipe and a blower are installed on the upper side of the metal fiber burner. A sensible heat exchanger connected to one burner and installed at the lower end of the burner to form a first heat absorbing plate therein, and a latent heat exchanger connected to the lower end of the sensible heat exchanger and installed to form a second heat absorbing plate therein, and a latent heat exchanger A condensate discharge part connected to the lower end of the unit to discharge condensate water, a copper pipe installed to pass through the first heat absorption plate of the sensible heat exchange part, and a stainless pipe installed to communicate with the copper pipe and formed to pass through the second heat absorption plate of the latent heat exchange part consists of

Here, gas is supplied to the internal space of the burner through the gas inlet pipe, and air is supplied by a blower to supply the mixed gas mixed in the internal space of the burner to the metal fiber burner.

Then, the mixed gas is ignited in the metal fiber burner to generate a flame at the bottom of the metal fiber burner, and at this time, the first heat absorbing plate of the sensible heat exchange part is heated by the flame, and the heat generated from the flame moves downward, exchanging latent heat. By heating the second heat absorbing plate of the part, the sensible heat exchange part and the latent heat exchange part are heated.

At this time, the water supply is passed through the stainless pipe installed in the latent heat exchanger so that the water supply is heated by the heat exchange action with the stainless pipe heated by the second heat absorbing plate, and then the primarily heated water supply is passed through the copper pipe, The water supply is heated secondarily by the heat exchange action with the copper pipe heated by the first heat absorbing plate.

Then, the heat-exchanged supply water while sequentially passing through the stainless pipe and the copper pipe is changed into heating water.

However, in Patent Document 1 as described above, the gas and air flowing into the burner are directly mixed before being ignited in the metal fiber burner, and the mixing rate of gas and air is lowered, and the mixing rate of gas and air is lowered in the metal fiber burner. Explosive ignition occurs or ignition performance rapidly deteriorates, resulting in incomplete combustion, and a gas inlet pipe is formed directly above the metal fiber burner, so backfire may occur through the gas inlet pipe. In particular, the gas inlet pipe When a small amount of gas is supplied through the burner, the gas is dispersed in all directions within the burner and does not reach the metal fiber burner, and the ignition performance is rapidly deteriorated. Since the gas consumption is supplied in proportion to the reachable amount, the gas consumption is rapidly increased, and the ignition performance is relatively lowered compared to the gas supply, thereby reducing the reliability of the product.

KR 20-2000-0008514 U

The present invention is to solve the problems described above, and an object of the present invention is to provide a blowing fan having an inlet and an outlet formed on an outer surface orthogonal to the inlet, and an inlet communicating with the outlet at the upper end directly below the outlet. A burner device for receiving and burning a mixed gas is provided by forming a hole, and a damper device for guiding the mixed gas discharged through the outlet to move in an oblique direction toward a predetermined part of the burner device is installed in the inlet hole, thereby reducing the discharge port. The open area of the damper device is controlled by the discharge pressure of the mixed gas discharged through the damper device. To provide a gas burner equipped with a non-powered variable damper so that the flame ignited at a predetermined portion of the burner device is not transferred to the entire area of the burner device.

In order to achieve the object of the present invention as described above, a gas burner having a powerless variable damper according to the present invention forms an inlet for receiving a mixed gas on the bottom surface and discharges the mixed gas introduced through the inlet on the outer surface. Blowing fan with an outlet; It is installed directly below the outlet of the blowing fan, and an inlet hole communicating with the outlet and allowing the mixed gas discharged through the outlet to flow in is formed at the upper end of the inlet hole to receive the mixed gas flowing in through the inlet hole. A burner device that burns the mixed gas; It is installed on the top of the burner device to communicate with the outlet of the blowing fan, the open area is adjusted to correspond to the discharge pressure of the mixed gas discharged through the outlet of the blowing fan, and the collision of the mixed gas discharged through the outlet of the blowing fan. It is characterized in that it consists of; a damper device for inducing and guiding the mixed gas to move in an oblique direction toward a predetermined portion of the burner device.

In the gas burner having a non-powered variable damper according to the present invention, the burner device receives a concentrated supply of the mixed gas moved by the damper device to a predetermined portion on the upper surface, and ignites the mixed gas to form a flame into the internal space a burner main body that forms a metal fiber burner that generates a gas, and is installed directly below the metal fiber burner to which the mixed gas is intensively supplied, and has a flame detection unit that detects a flame ignited by the metal fiber burner; The lower end covers the upper surface of the burner body, the damper device is inserted and coupled to the inlet hole formed at the upper end, and the inner circumferential surface thereof is curved so that the mixed gas discharged through the discharge port moves to the metal fiber burner of the burner body It is characterized in that it consists of; flow path body for guiding to.

In the gas burner having a non-powered variable damper according to the present invention, the damper device has a hollow shape with front and rear openings, and the mixed gas flowing into the inlet hole of the burner device is introduced into the burner device. a damper body through which; It is located at the front end of the damper body opposite to the inlet hole, and its upper end is rotatably installed on the damper body to close the front end of the damper body, and allows collision of the mixed gas passing through the damper body, It is characterized in that it consists of; a check damper which is rotated at a predetermined angle to correspond to the discharge pressure of the gas to form an open passage and guides the mixed gas to move in an oblique direction toward the burner device through the open passage.

In the gas burner having a non-powered variable damper according to the present invention, the burner device is an opening limiting stopper protruding downward from the inner upper surface of the inlet hole and limiting the rotational opening angle of the check damper rotated at a predetermined angle. It is characterized in that further formed.

In the gas burner having a non-powered variable damper according to the present invention, the damper body is formed to connect between the inner upper and lower surfaces and both inner walls, and a plurality of upper, lower, left, and right partitioned inside the damper body It is characterized in that it further comprises a partition plate forming the opening of the dog.

In the gas burner having a non-powered variable damper according to the present invention, the damper body has a plate shape, is closely coupled to the partition plate, and seals the left and right openings at the bottom of the plurality of openings, mixing It is characterized in that a diaphragm is further formed to induce gas to collide with the upper end of the check damper through the left and right openings at the top.

In the gas burner having a non-powered variable damper according to the present invention, the damper body forms a stepped groove recessed along the shear edge and forms a rotary ring on the upper surface, and the check damper faces the stepped groove It is characterized in that the viewing rim is coupled to the stepped groove to form a stepped protrusion for sealing the front end of the damper body, and a rotational shaft coupled to the rotation ring at the top to guide rotation of the check damper is further formed.

In the gas burner having a non-powered variable damper according to the present invention, the front surface of the damper body is inclined downward from the top to the bottom based on the rotation axis of the check damper, so that the check damper is in close contact. to be

In the gas burner having a non-powered variable damper according to the present invention, the damper body is inclined at an angle determined toward the central portion of the check damper on the inner circumferential edge of the opening, and the mixed gas is discharged to the central portion of the check damper It is characterized by further forming an inclined surface portion to guide to be.

According to the present invention, the discharge port is closed or opened by the damper device to prevent backfire from occurring through the outlet for discharging the mixed gas, and when a backwind occurs in the direction of the damper device, the damper device seals the front end, so that the damper device Resonance or vibration in the damper device due to the mixed gas supplied to the burner device as the open area of the damper device is adjusted to correspond to the discharge pressure of the mixed gas passing through the damper device. There is no risk of this occurring, and while colliding the mixed gas with the damper device, the mixed gas is concentrated in an oblique direction toward a predetermined part of the burner device, so that a small amount of the mixed gas easily reaches the predetermined part of the burner device, By maintaining the ignition performance of the burner device with a small amount of mixed gas, it is possible to maintain the ignition performance while reducing the supply of the mixed gas, thereby reducing the consumption of the mixed gas and saving energy at the same time, thereby improving the reliability of the product. .

1 is a perspective view showing a gas burner having a powerless variable damper according to the present invention.
Figure 2 is an exploded perspective view of Figure 1;
3 is an exploded perspective view of a damper device of a gas burner having a non-powered variable damper according to the present invention.
Figure 4 is a side cross-sectional view of a damper device of a gas burner having a non-powered variable damper according to the present invention.
5 is a perspective view showing a state in which mixed gas is intensively supplied to a predetermined portion of a metal fiber burner through a damper device of a gas burner having a non-powered variable damper according to the present invention.

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

1 to 5, the blowing fan 100 forms an inlet 101 for receiving mixed gas on its bottom surface, and an outlet 102 for discharging the mixed gas introduced through the inlet 101 on its outer surface. form

The blowing fan 100 guides the mixed gas to be discharged in the direction of the burner device 200 .

The flow rate of the blowing fan 100 is changed by a user's manipulation, and the mixed gas can be discharged through the outlet 102 at different flow rates.

The burner device 200 is installed directly below the outlet 102 of the blowing fan 100, and communicates with the outlet 102 at the top thereof to allow the mixed gas discharged through the outlet 102 to flow in An inlet hole 221 is formed to receive the mixed gas introduced through the inlet hole 221 and combust the mixed gas.

The burner device 200 heats a water supply pipe (not shown) installed in the inner space to heat water passing through the water supply pipe (not shown).

The burner device 200 further forms an opening limiting stopper 222 protruding downward from the inner upper surface of the inlet hole 221 to limit the rotational opening angle of the check damper 320 rotated at a predetermined angle. do.

It is preferable that the opening limiting stopper 222 is formed in plurality at a predetermined interval.

The opening limiting stopper 222 prevents the check damper 320 from being damaged by colliding with the inner wall surface of the inlet hole 221 of the burner device 200 or from being caught in the inlet hole 221. do.

The burner device 200 receives a concentrated supply of the mixed gas moved by the damper device 300 to a predetermined area on the upper surface, and ignites the mixed gas to generate a flame into the internal space. The metal fiber burner 211 A burner body 210 formed with a flame detection sensor 212 installed directly below the metal fiber burner 211 to which the mixed gas is intensively supplied, and detecting a flame ignited by the metal fiber burner 211. ), and the lower end covers the upper surface of the burner body 210, the damper device 300 is inserted into the inlet hole 221 formed at the upper end, and the inner circumferential surface is curved to form the outlet 102 It consists of a flow path body 220 that guides the mixed gas discharged through the metal fiber burner 211 of the burner body 210 to move.

The burner body 210 is installed directly below the outlet 102 of the blowing fan 100.

The metal fiber burner 211 of the burner body 210 intensively receives the mixed gas moving in an oblique direction by the damper device 300 and ignites the mixed gas.

The predetermined part of the metal fiber burner 211 is the central part of the metal fiber burner 211, and the transfer of heat to the outside of the burner body 210 is reduced based on the central part, so that the burner device 200 ) is prevented from deterioration and breakage.

The metal fiber burner 211 passes the mixed gas directly below a portion where the mixed gas is intensively supplied, so that a flame is generated below the metal fiber burner 211 .

The flame detection sensor 212 detects a flame intensively burning directly below the metal fiber burner 211 and determines whether the metal fiber burner 211 is ignited.

The burner main body 210 has a spark plug 213 for generating sparks in the mixed gas supplied to the metal fiber burner 211 and igniting the mixed gas moved downward of the metal fiber burner 211. contains more

Preferably, the spark plug 213 is installed on one side of the flame detection unit 212 to ignite the mixed gas.

The passage body 220 is formed to connect between the outlet 102 of the blowing fan 100 and the metal fiber burner 211 of the burner body 210.

The passage body 220 collides with the damper device 300 and guides the mixed gas whose moving direction is changed to move toward the metal fiber burner 211 of the burner body 210 .

The damper device 300 is installed on top of the burner device 200 to communicate with the outlet 102 of the blowing fan 100, and discharges the mixed gas discharged through the outlet 102 of the blowing fan 100 The open area is adjusted to correspond to the pressure, and a collision of the mixed gas discharged through the outlet 102 is induced to guide the mixed gas to move in an oblique direction toward a predetermined portion of the burner device 200 .

The damper device 300 is opened to correspond to the discharge pressure of the mixed gas discharged through the outlet 102, and moves the mixed gas toward the burner device 200, so that the damper device 300 when the mixed gas collides Resonance or collision sound is prevented from occurring inside.

The damper device 300 has a hollow shape with front and rear openings, and the mixed gas flowing into the inlet hole 221 of the burner device 200 is introduced into the burner device 200. Damper for passing the mixed gas It is located at the front end of the body 310 and the damper body 310 opposite to the inlet hole 221, and the upper end is rotatably installed on the damper body 310 to close the front end of the damper body 310 and allows the collision of the mixed gas passing through the damper body 310, but is rotated at an angle determined to correspond to the discharge pressure of the mixed gas to form an open passage 321, and through the open passage 321 It consists of a check damper 320 that guides the mixed gas to move in an oblique direction toward the burner device 200.

The damper body 310 guides the mixed gas to move in the direction of the check damper 320 .

The outer surface of the damper body 310 is formed to correspond to the shape of the inlet hole 221 of the burner device 200, and is inserted and fixed into the inlet hole 221.

The damper body 310 is formed to connect between the inner upper and lower surfaces and both inner walls, forming a plurality of openings 310a divided into upper, lower, left, and right inside the damper body 310 A plate 311 is further included.

The partition plate 311 divides and passes the mixed gas through the opening 310a.

The partition plate 311 is preferably formed in a "+" shape in cross section to form the opening 310a.

The damper body 310 is formed on the inner circumferential edge of the opening 310a at an angle determined toward the center of the check damper 320, and the inclined surface guides the mixed gas to be discharged to the center of the check damper 320 A portion 315 is further formed.

The inclined surface portion 315 guides the mixed gas passing through the opening 310a to be collected and discharged to the central portion of the check damper 320 .

The damper body 310 has a plate shape, is tightly coupled to the partition plate 311, and seals the lower left and right openings 310a among the plurality of openings 310a, so that the mixed gas is A diaphragm 312 is further formed to induce collision with the upper end of the check damper 320 through the left and right openings 310a.

The diaphragm 312 blocks the passage of the mixed gas through the lower left and right openings 310a among the plurality of openings 310a.

The diaphragm 312 intensively collides the mixed gas with the upper end of the check damper 320 so that the collision point of the mixed gas is close to the rotating shaft 323 of the check damper 320 .

The diaphragm 312 concentrates the collision point of the mixed gas to the upper end of the check damper 320, thereby reducing the rotational open area of the check damper 320 corresponding to the discharge pressure of the mixed gas, while the mixed gas flows through the burner device. (200) is induced to converge toward the designated part.

The damper body 310 forms a stepped groove 313 recessed along the front edge, and forms a rotation ring 314 on the upper surface.

The stepped groove 313 allows the stepped protrusion 322 of the check damper 320 to be coupled, and the check damper 320 is tightly fixed to the front end of the damper body 310 .

The rotary ring 314 allows the check damper 320 to be coupled to the rotary shaft 323 and supports rotation of the rotary shaft 323 in a forward or reverse direction.

The front surface of the damper body 310 is inclined downward from the top to the bottom with respect to the rotation shaft 323 of the check damper 320, so that the check damper 320 is in close contact.

The front surface of the damper body 310 is inclined, so that the angle θ1 from the check damper 320 to the imaginary inclined line L1 formed with respect to the rotating shaft 323 is relative to the rotating shaft 323. It is formed relatively smaller than the angle θ2 up to the imaginary vertical line L2 formed as a reference, so that when a headwind occurs in the direction of the damper body 310, the check damper 320 reaches the front of the damper body 310 distance is relatively short.

The check damper 320 closes or opens the front end of the damper body 310 while being rotated.

The check damper 320 allows the mixed gas to collide with the upper part or the central part.

The check damper 320 is opened at a predetermined angle from the front end of the damper body 310 to correspond to the discharge pressure of the mixed gas, forming an open passage 321 therebetween.

The check damper 320 allows the mixed gas to collide while being opened at a predetermined angle from the front end of the damper body 310, and guides the mixed gas to be intensively supplied to a predetermined portion of the metal fiber burner 211 do.

The check damper 320 is rotated open due to the discharge pressure of the mixed gas within the inlet hole 221, then blocked by the opening limiting stopper 222 of the burner device 200 and rotated open beyond a predetermined angle. Blocked.

The check damper 320 is coupled to the stepped groove 313 at an edge facing the stepped groove 313 to form a stepped protrusion 322 sealing the front end of the damper body 310, and at the top It is coupled to the rotation ring 314 to further form a rotational shaft 323 for guiding rotation of the check damper 320.

The stepped protrusion 322 is inserted into and coupled to the stepped groove 313 to block back wind from flowing into the gap between the check damper 320 and the damper body 310 .

The rotating shaft 323 is rotated in a forward or reverse direction with respect to the rotation ring 314 to guide the check damper 320 to close or open the front end of the damper body 310 .

The gas burner having the powerless variable damper according to the present invention configured as described above is used as follows.

First, when the blowing fan 100 is driven by manipulating a control panel (not shown), the mixed gas flows into the blowing fan 100 by the suction pressure formed at the inlet 101 of the blowing fan 100. .

Then, the mixed gas introduced into the blowing fan 100 is discharged to the burner device 200 through the outlet 102, and the mixed gas is supplied to the burner device 200.

At this time, the outlet 102 is connected to the inlet hole 221 of the burner device 200, so that the mixed gas discharged through the outlet 102 flows into the inlet hole 221 of the burner device 200. is introduced

Then, the mixed gas flowing into the inlet hole 221 passes through the damper device 300 and is supplied to the burner device 200 .

That is, the mixed gas introduced into the inlet hole 221 passes through the opening 310a formed in the damper body 310 of the damper device 300 and then collides with the check damper 320, An open passage 321 is formed between the damper body 310 and the check damper 320 by pushing out the 320 .

At this time, the check damper 320 is rotated open to correspond to the discharge pressure of the mixed gas that passes through the damper body 310 and collides with the rear surface thereof, thereby adjusting the area of the open passage 321 therebetween.

Here, when the mixed gas collides with the check damper 320, the rotating shaft 323 of the check damper 320 is rotated in a forward or reverse direction with respect to the rotation ring 314 of the damper body 310, so that the mixed gas Rotate the check damper 320 at a predetermined angle to correspond to the discharge pressure of.

In addition, the damper body 310 passes the mixed gas through the plurality of openings 310a partitioned into left and right portions at the upper and lower ends by the partition plate 311, thereby forming the center portion of the check damper 320 or by sealing the openings 310a formed on the lower left and right sides of the plurality of openings 310a with a diaphragm 312, the openings 310a formed on the upper left and right sides Through this, the mixed gas can be collided with the rear upper part of the check damper 320.

Here, the concentrated collision of the mixed gas with the rear center of the check damper 320 or the concentrated collision of the mixed gas with the upper rear surface of the check damper 320 can be controlled according to the user's selection. At this time, the Compared to the concentrated collision of the mixed gas with the central part of the check damper 320, when the mixed gas is intensively collided with the upper part of the check damper 320, the rotation radius of the check damper 320 is relatively reduced.

That is, the mixed gas is simultaneously passed through the plurality of openings 310a of the damper body 310 so that the mixed gas intensively collides with the central portion of the check damper 320 or the diaphragm 312 is formed in the opening 310a. ) may be installed to allow the mixed gas to intensively collide with the rear upper part of the check damper 302 through the opening 310a where the diaphragm 312 is not installed among the plurality of openings 310a.

First, when the mixed gas passes through the plurality of openings 310a, the mixed gas is discharged in the direction of the check damper 320 and collides intensively with the rear center of the check damper 320, The damper 320 is rotated and maintained at a predetermined angle, and in that state, the mixed gas colliding with the rear center of the check damper 320 passes through the open passage 321 to the metal fiber burner 211 of the burner body 210 It moves in an oblique direction toward the direction, and is intensively supplied to a predetermined part of the metal fiber burner 211.

In the following description, the openings 310a formed at the lower left and right sides of the plurality of openings 310a will be described as being sealed by the diaphragm 312 as an example.

Thereafter, the check damper 320, which is rotated and opened by the discharge pressure of the mixed gas at the front end of the damper body 310, guides the mixed gas to collide with the upper rear surface of the damper body 310 in a state of being inclined open at a predetermined angle, The gas is guided to move in an oblique direction toward the metal fiber burner 211 of the burner body 210 through the open passage 321 .

At this time, among the mixed gases passing through the opening 310a of the damper body 310, the mixed gas moving along the edge of the opening 310a is formed on the inner circumferential edge of the opening 310a. By being guided to and discharged toward the center of the check damper 320, the mixed gas discharged from the opening 310a is prevented from leaking around the edge of the check damper 320.

In addition, when the mixed gas passes through the opening 310a and collides intensively toward the rear upper end of the check damper 320, the damper body 310 rotates relative to the moment value of the concentrated load point at which the mixed gas collides As the self-weight of the check damper 320 is relatively larger, the open area of the check damper 320 is reduced, and as a result, the mixed gas colliding with the check damper 320 is transferred to the burner body 210. is supplied in an oblique direction toward a predetermined portion of the metal fiber burner 211 of the

Here, the moment value represents the product of the flow rate of the mixed gas and the moving distance.

At this time, when the discharge pressure of the mixed gas colliding with the check damper 320 rises above the predetermined discharge pressure, the check damper 320 is rotated at an angle or more determined by the discharge pressure of the mixed gas, and then the inlet hole 221 ) is blocked by the opening limiting stopper 222 formed in, and is prevented from being rotated beyond a predetermined angle.

On the other hand, the mixed gas colliding with the check damper 320 is changed in an oblique direction so that the moving direction is toward the metal fiber burner 211, and then guided to the inner circumferential surface of the flow path body 220 to burn the metal fiber burner. (211) is moved in the direction.

And, as described above, the mixed gas colliding with the check damper 320 and moving in an oblique direction toward the metal fiber burner 211 is intensively supplied to a predetermined portion of the metal fiber burner 211 .

Here, the mixed gas colliding with the top of the rear surface of the check damper 320 is intensively supplied to the center of the metal fiber burner 211 and moves into the burner body 210 through the metal fiber burner 211. desirable.

Then, the spark plug 213 installed in the burner body 210 generates a spark to ignite the mixed gas supplied to a predetermined portion of the metal fiber burner 211, and A flame is generated in the burner body 210 inward.

At this time, when ignition is made in the metal fiber burner 211, the flame detection unit 212 detects a flame ignited at a predetermined part of the metal fiber burner 211, and the flame in the metal fiber burner 211 to determine whether it is created.

Here, the spark plug 213 and the flame detection unit 212 correspond to the position of the mixed gas that is intensively supplied to a predetermined part of the metal fiber burner 211 through the open area of the check damper 320. It is installed directly below the burner 211, enabling ignition and flame detection.

In addition, when the mixed gas is intensively supplied to a predetermined portion of the metal fiber burner 211 through the open area of the check damper 320, the mixed gas is ejected directly downward from the predetermined portion of the metal fiber burner, The length of the flame ignited in the metal fiber burner is increased.

In addition, while allowing the mixed gas passing through the damper body 310 to collide with the rear surface of the check damper 320 as described above, the check damper 320 is opened at an angle determined to correspond to the discharge pressure of the mixed gas. , The mixed gas is continuously supplied to a predetermined part of the metal fiber burner 211.

That is, the check damper 320 is opened at a predetermined angle to correspond to the amount of mixed gas colliding with the check damper 320, and the metal fiber burner 211 passes through the opening passage 321 of the check damper 320. By allowing the mixed gas to be intensively supplied to a predetermined part of the metal fiber burner 211, regardless of the supply amount of the mixed gas supplied to the metal fiber burner 211, the mixed gas is completely burned at the predetermined part of the metal fiber burner 211, and ignition and Combustion performance can be improved at the same time.

Therefore, the ejection range (eg, flame ejection area) of the flame ejected from the metal fiber burner 211 varies according to the ejection speed of the mixed gas (eg, mixed gas supply amount), and thus, the metal fiber burner 211 ), the flame load of the flame passing through is kept constant, and the ignition and combustion performance are improved at the same time.

Meanwhile, when headwind is generated by the burner device 200 to the damper device 300, the headwind is moved toward the damper body 310, and at this time, the check damper 320 is pushed by the headwind and the damper It is rotated in the direction of the body 310.

Here, the check damper 320 has its rotating shaft 323 rotated based on the rotation ring 314 of the damper body 310 to reach the front surface of the damper body 310, and then the check damper ( The stepped protrusion 322 of 320) is inserted into the stepped groove 313 of the damper body 310, and the check damper 320 is closely coupled to the front end of the damper body 310.

Then, the front surface of the damper body 310 is sealed by the check damper 320, and accordingly, the flame or head wind ignited in the metal fiber burner 211 by the back wind is blocked by the check damper 320, Backfire or backwind in the direction of the outlet 102 of the blowing fan 100 is prevented.

In addition, the step protrusion 322 of the check damper 320 is inserted into the step groove 313 and seals the gap between the check damper 320 and the damper body 310, thereby sealing the gap between them. This prevents backfire or headwind from occurring.

In particular, the front surface of the damper body 310 is formed to be inclined downward, so that the check damper 320 adheres to the front surface of the damper body 310 in an inclined state in case of headwind or backfire, so that the check damper 320 The distance to reach the front of the damper body 310 is shortened.

As described above, the mixed gas discharged from the blowing fan 100 collides with the damper device 300 to adjust the open area of the damper device 300 to correspond to the mixed gas discharge pressure, but the opened damper device 300 In the structure in which the mixed gas is intensively supplied to a predetermined part of the burner device 200 through the outlet 102 is closed or opened by the damper device 300, the backfire occurs through the outlet 102 for discharging the mixed gas. When headwind is generated in the direction of the damper device 300, the damper device 300 seals the front end, and the headwind is prevented from entering in the direction of the outlet 102 through the damper device 300, and the damper device The open area of the damper device 300 is adjusted to correspond to the discharge pressure of the mixed gas passing through the 300, and the damper device 300 generates resonance or vibration due to the mixed gas supplied to the burner device 200. There is no possibility of this, and while the mixed gas collides with the damper device 300, the mixed gas is intensively moved in an oblique direction toward a predetermined part of the burner device 200, so that a small amount of the mixed gas Easily reach the designated area.

The gas burner having a powerless variable damper according to the present invention described above is not limited to the above-described embodiment, and conventional knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the following claims Anyone who has it has the technical spirit to the extent that it can be changed and implemented in various ways.

100: blowing fan 101: inlet
102: outlet 200: burner device
210: burner body 211: metal fiber burner
212: flame detection unit 213: spark plug
220: flow path body 221: inflow hole
222: opening limiting stopper 300: damper device
310: damper body 310a: opening
311: partition plate 312: diaphragm
313: stepped groove 314: rotating ring
320: check damper 321: open passage
322: step protrusion 323: rotation axis

Claims (9)

A blower fan 100 having an inlet 101 for receiving mixed gas on a bottom surface and an outlet 102 for discharging the mixed gas introduced through the inlet 101 on an outer surface thereof;
An inlet hole 221 installed directly below the outlet 102 of the blowing fan 100 and communicating with the outlet 102 at the top thereof allows the mixed gas discharged through the outlet 102 to flow in. a burner device 200 configured to receive the mixed gas introduced through the inlet hole 221 and burn the mixed gas;
It is installed at the top of the burner device 200 to communicate with the outlet 102 of the blowing fan 100, and opens to correspond to the discharge pressure of the mixed gas discharged through the outlet 102 of the blowing fan 100. A damper device 300 having an adjusted area and guiding the mixed gas to move in an oblique direction toward a predetermined portion of the burner device 200 by inducing a collision of the mixed gas discharged through the outlet 102;
A gas burner with a powerless variable damper, characterized in that consisting of. According to claim 1,
The burner device 200,
On the upper surface, a metal fiber burner 211 is formed to receive the mixed gas moved by the damper device 300 and to ignite the mixed gas to generate a flame in the internal space, and the mixed gas is concentrated. a burner body 210 installed directly below the supplied metal fiber burner 211 and having a flame detection unit 212 for detecting a flame ignited by the metal fiber burner 211;
The lower end covers the upper surface of the burner body 210, the damper device 300 is inserted and coupled to the inlet hole 221 formed at the upper end, and the inner circumferential surface thereof is curved to be discharged through the outlet 102. a passage body 220 for guiding the mixed gas to move to the metal fiber burner 211 of the burner body 210;
A gas burner with a powerless variable damper, characterized in that consisting of. According to claim 1,
The damper device 300,
a damper body 310 having a hollow shape with front and rear openings and passing the mixed gas through the inlet hole 221 of the burner device 200 so that the mixed gas flows into the burner device 200;
It is located at the front end of the damper body 310 opposite to the inlet hole 221, and its upper end is rotatably installed on the damper body 310 to close the front end of the damper body 310, and the damper body ( 310), the mixed gas is allowed to collide, and is rotated at an angle determined to correspond to the discharge pressure of the mixed gas to form an open passage 321, through which the mixed gas flows through the burner device. a check damper 320 for guiding the movement in an oblique direction toward the direction of (200);
A gas burner with a powerless variable damper, characterized in that consisting of. According to claim 3,
The burner device 200,
A non-powered variable characterized in that an opening limiting stopper 222 is further formed on the inner upper surface of the inlet hole 221 to limit the rotational opening angle of the check damper 320 rotated at a predetermined angle. Gas burner with damper. According to claim 3,
The damper body 310,
It is formed to connect between the inner upper and lower surfaces and both inner walls, and further includes a partition plate 311 forming a plurality of openings 310a partitioned into upper, lower, left, and right inside the damper body 310 A gas burner having a non-powered variable damper, characterized in that. According to claim 5,
The damper body 310,
In the shape of a plate material, it is tightly coupled to the partition plate 311 and closes the left and right openings 310a at the lower end among the plurality of openings 310a, so that the mixed gas passes through the upper left and right openings 310a. ) A gas burner with a non-powered variable damper, characterized in that further forming a diaphragm 312 for inducing collision with the upper end of the check damper 320 through. According to claim 3,
The damper body 310,
Forming a stepped groove 313 recessed along the shear edge, forming a rotation ring 314 on the upper surface,
The check damper 320,
The edge facing the stepped groove 313 is coupled to the stepped groove 313 to form a stepped protrusion 322 sealing the front end of the damper body 310, and coupled to the rotary ring 314 at the top A gas burner with a non-powered variable damper, characterized in that the rotation shaft 323 for guiding the rotation of the check damper 320 is further formed. According to claim 7,
The damper body 310,
A gas burner with a non-powered variable damper, characterized in that the front surface is formed to be inclined downward from the top to the bottom with respect to the rotation shaft 323 of the check damper 320, so that the check damper 320 is in close contact. According to claim 6,
The damper body 310,
An inclined surface portion 315 is formed on the inner circumferential edge of the opening 310a at an angle determined toward the central portion of the check damper 320 to guide the mixed gas to be discharged to the central portion of the check damper 320. A gas burner having a powerless variable damper, characterized in that.

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