KR101818822B1

KR101818822B1 - Air injection type Gas burner

Info

Publication number: KR101818822B1
Application number: KR1020150174057A
Authority: KR
Inventors: 김경연
Original assignee: 에스케이매직 주식회사
Priority date: 2015-12-08
Filing date: 2015-12-08
Publication date: 2018-01-16
Also published as: KR20170067933A

Abstract

The present invention relates to an air-injecting gas burner, wherein a body housing (103) in which a salt well (106) is formed is provided with a gas nozzle (108) 103; A gas supply pipe 107 connected to the transfer pipe 210; A primary air supply pipe (109, 119) forming a flow path of the primary air provided to the salt flushing (106); And a diaphragm pump (310) connected to the primary air supply pipes (109, 119) for forcibly injecting the primary air. In the case of the diaphragm air pump, accurate discharge amount control is possible, (Large burner, medium burner, small burner) and thermal power (fire power, neutralization power, fire extinguishing power, fine fire power).

Description

[0001] The present invention relates to an air injection type gas burner,

The present invention relates to an inflatable gas burner.

In the case of cooking gas burners, LNG (liquefied natural gas) or LPG (liquefied petroleum gas) is generally used as the main fuel.

These main fuels are mixed with air using a venturi to convert to conditions suitable for combustion.

The mixing pipe using the venturi takes the process of mixing the primary air with LNG or LPG.

In such a mixing process, the gas burner exhibits the optimum performance as the mixing ratio of the primary air and the main fuel is appropriately made.

On the contrary, if the mixing of the primary air and the main fuel in the mixing process is not performed smoothly due to insufficient air amount, incomplete combustion such as backburning or soot generation is caused.

In order to generate high calorific power, it is more important to control the amount of gas and the amount of air suitable for high power.

However, the larger the size of the injector located at the inlet of the venturi, the greater the amount of gas injected by the input of the gas itself, while the primary air is difficult to be provided in an amount proportional to the volume of gas supplied.

In particular, it is impossible to provide the primary air in proportion to the amount of gas supplied in the natural state by the Bernoulli principle.

In order to solve such an unbalance, a large amount of air is forcedly supplied by using a blowing fan in the case of a conventional high-burner business burner.

Figure 1 is a prior art.

The burner 1 includes a burner body 2, a burner head 3, a salt burner 4 formed on the burner head 3, a mixing pipe 5m for the main burner and a mixing pipe 5s for the subburner, And a gas supply pipe 6s for the sub-burner.

When the original user operates a gas valve that is not shown, the combustion gas is fed through the gas supply pipe 6 and at the same time the spark plug 7 generates a high-pressure spark.

The combustion gas fed through the pipe is divided into a main gas feed pipe 6m for the main burner and a gas feed pipe 6s for the sub-burner. The gas fed through the gas feed pipe 6s for the sub-burner is fed by a Bernoulli- (5s) At the inlet venturi, the primary air is supplied naturally.

In addition, the gas fed through the gas supply pipe 6m for the main burner forcibly supplies the primary air by the air supply fan.

Finally, the combustion gas, in which the primary air is sucked / mixed in the mixing pipe 5s for the secondary burner and the mixing pipe 5m for the main burner, is ignited by the spark of the spark plug 7 in the burning of the burner head, do.

However, these techniques have also been difficult to provide in proportion to the amount of gas to which the primary air is supplied for optimal combustion.

In addition, according to the prior art, the introduction of the primary air is facilitated by the advantage of the forced air injection burner so that the size of the burner can be reduced to improve the thermal efficiency or improve the combustion characteristic.

However, in the above prior art documents, the burner uses a fan motor as a component for supplying the primary air, and has various problems in supplying the primary air using the fan motor.

First, the fan motor can not inject the correct amount of air to supply.

Since the fan motor controls the rotation speed (RPM) of the motor through an electric signal, there is a limit in injecting the accurate air amount.

Second, the fan motor can inject a large amount of air with high speed rotation, but it can not be added to the calorific value of less than 4,000 kcal of the domestic burner. Furthermore, when controlling the burner's firepower with neutralizing power or fire extinguishing power, very fine air conditioning is required. At this time, the fan motor has trouble injecting the required amount of air to the burner at low speed rotation.

Also, even if fine air is injected from neutralization power or fire extinguishing power, it is necessary to inject at a certain pressure in a precise position where mixing in the venturi can be performed. The fan motor has a problem that the outlet pressure is very low at low speed.

Third, the fan motor has a large area of the fan motor air outlet, so that the flow can be seriously generated inside the venturi, and a vortex is generated in the air flow due to the influence, which may cause the flame to wiggle or shake.

Fourth, there is a possibility that the gas can flow into the product because the fan motor has no structure to prevent the backflow gas when the flue gas reversely flows backwards.

(Patent Document 1) KR1171084 B1

(Patent Document 1) KR1519501 B1

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an air-injected gas burner capable of forcibly providing primary air in proportion to the amount of supplied gas .

In order to solve the above-mentioned problems, the present invention provides a body housing (103) in which a salt flask (106) is formed, a gas nozzle (108) is formed and a gas flow path to be supplied to the salt flask 103; A gas supply pipe 107 connected to the transfer pipe 210; A primary air supply pipe (109, 119) forming a flow path of the primary air provided to the salt flushing (106); And a diaphragm pump 310 connected to the primary air supply pipes 109 and 119 for forcibly injecting the primary air.

In addition, the primary air supply pipe 109 may be connected to the transfer pipe 210 to provide an air-injected gas burner for supplying primary air to the gas supplied through the gas nozzle 108.

The primary air supply pipe 119 may include an air injection type gas burner connected to the body housing 103.

The primary air supply pipe 119 may include an air injection type gas burner connected in a straight line with a flow path formed in the body housing 103.

The diaphragm pump 310 includes an air injection nozzle 312 having a primary air inlet 311 formed at one side thereof and connected to the primary air supply pipe 109; Lt; / RTI > gas burner.

The diaphragm pump 310 may also provide an inflatable gas burner in which the amount of primary air is controlled to be provided in proportion to the amount of gas supplied from the gas supply pipe 107 to the body housing 103 .

The present invention as described above has the following effects.

First, the diaphragm air pump can control the exact amount of discharge, so it is possible to precisely inject air without limiting the burner size (large burner, medium burner, small burner) or thermal power (fire power, neutralization power, digestive power, have.

Second, since the size of the air injection port can be designed to be narrow (10 mm or less), there is an advantage that injection can be performed at a constant pressure in a specific section of the venturi where primary air is to be injected.

Third, since it is possible to inject a fixed amount of air, there is no flow inside the venturi and the flame is stable.

Fourth, there is an advantage that the air flowing into the input part of the diaphragm pump can be taken from the outside of the product, so that the air flow inside the product does not occur.

Fifth, the diaphragm pump uses a thin separator to pressurize the gas, so there is no likelihood of backflow like a fan motor.

Sixth, there is an advantage in that the number of parts is very small as compared with the prior art, the structure is simple, and the material cost is low.

1 is a diagram showing a conventional technique.
2 is a perspective view according to a first preferred embodiment of the present invention.
3 is a cross-sectional view according to a first preferred embodiment of the present invention.
4 is a perspective view according to a second preferred embodiment of the present invention.
5 is a cross-sectional view according to a second preferred embodiment of the present invention.

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

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

FIG. 2 is a perspective view according to a first preferred embodiment of the present invention, and FIG. 3 is a sectional view according to a first preferred embodiment of the present invention.

The burner assembly 101 has a body housing 103. A cover unit 104 is coupled to an upper portion of the body housing 103 and a head unit 105 is provided at an upper end of the cover unit 104. [

The head unit 105 has a plurality of saltings 106 on its side surface.

The ignition plug 111 is provided adjacent to the head unit 105 in the body housing 103 and serves to ignite the gas supplied to the body housing 103 when the gas is blown out through the salt flushing unit 106.

In the body housing 103, a salt flushing 106 is formed.

The transfer tube 210 is connected to the body housing 103 by forming a gas nozzle 108 on one side thereof and forming a gas flow path to be supplied to the salt flask 106.

The gas supply pipe 107 is connected to the transfer pipe 210 to supply gas necessary for combustion.

The primary air supply pipe 109 forms a flow path of the primary air supplied to the salt flushing 106.

The primary air described below can be considered as the air that is first mixed into the fuel required for combustion.

The diaphragm pump 310 is connected to the primary air supply pipe 109 to forcibly inject primary air into the transfer pipe 210 through the primary air supply pipe 109.

The diaphragm pump 310 can control the amount of primary air supplied to the transfer pipe 210 through the primary air supply pipe 109 by a control unit (not shown).

The diaphragm pump 310 may have a primary air inlet 311 formed at one side thereof and an air injection nozzle 312 formed at the other side thereof.

The air injection nozzle 312 may communicate with the primary air supply pipe 109.

The primary air supply pipe 109 is connected to the transfer pipe 210 and provides primary air to the gas provided through the gas nozzle 108.

More specifically, the transfer tube 210 has an expansion part formed at one end thereof connected to the body housing 103 and at the other end thereof being expanded.

The primary air supply pipe 109 and the gas nozzle 108 of the gas supply pipe 107 are inserted into the expansion portion of the transfer pipe 210.

Therefore, when gas supplied through the gas supply pipe 107 is supplied into the transfer pipe 210 through the gas nozzle 108, the primary air supplied through the primary air supply pipe 109 simultaneously flows into the transfer pipe 210, So that the gas and the primary air can be mixed with each other and supplied to the body housing 103.

Since the transfer pipe 210 is a horizontally elongated pipe, it is possible to provide a passage through which the gas and the primary air can be sufficiently mixed.

On the other hand, the diaphragm pump 310 can be controlled through a control unit (not shown) so that the amount of primary air is provided in proportion to the amount of gas supplied from the gas supply pipe 107 to the body housing 103.

Therefore, since the amount of the primary air provided according to the amount of the supplied gas can be precisely adjusted, it is possible to perform the combustion smoothly even at a high heating power.

3, the primary air supply pipe 109 may be positioned above the gas nozzle 108 to which the gas supply pipe 107 is connected.

The expanded portion of the transfer tube 210 has a structure in which the diameter gradually increases toward the right according to the Bernoulli principle.

Next, the operation according to the first preferred embodiment of the present invention will be described.

When the ignition is started by turning a gas lever (not shown) provided in the gas burner, the gas is injected into the transfer pipe 210 through the gas nozzle 108 along the gas supply pipe 107.

At the same time, the controller (not shown) calculates the degree of rotation of the gas lever (not shown) and drives the diaphragm pump 310 so that the primary air is injected in proportion to the amount of gas supplied.

The primary air flows out of the end of the primary air supply pipe 109 through the air injection nozzle 312 in proportion to the amount of the gas and is supplied to the transfer pipe 210.

The diaphragm pump 310 can forcibly supply the primary air to the transfer pipe 210.

The primary air and the gas are mixed while flowing in the transfer pipe 210 to provide an optimal combustion fuel.

The mixed primary air and gas are supplied to the salt flask 106 along the gas flow path formed in the body housing 103 so as to be ignited by the spark plug 111 to be able to provide the thermal power through the burner assembly 101 will be.

Next, a second preferred embodiment of the present invention will be described in detail with reference to FIGS.

4 is a perspective view according to a second preferred embodiment of the present invention, and FIG. 5 is a sectional view according to a second preferred embodiment of the present invention.

Since the structure of the burner assembly 101 in the first embodiment is the same as the air-injected gas burner of the second embodiment, description thereof is omitted.

However, in the second embodiment, the primary air supply pipe 119 provided with the primary air is connected to the body housing 103.

More specifically, the primary air supply pipe 119 is directly connected to the body housing 103.

Only the gas supply pipe 107 and the gas nozzle 108 are connected to the transfer pipe 210.

The primary air is supplied to the primary air supply pipe (119) through the diaphragm pump (310) and merges with the gas exiting the end of the transfer pipe (210).

That is, the primary air supply pipe 119 is connected to the flow path formed inside the body housing 103 in a straight line.

This structural feature enables faster delivery of gas and primary air.

In other words, by allowing the primary air to be discharged through the salt flushing 106 of the body housing 103 immediately without a drop in pressure, the load of the diaphragm pump 310 can be reduced, So that the combustion efficiency can be increased.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the present invention can be changed.

101: burner assembly
103: Body housing
104: Cover unit
105: Head unit
106: salt study
107: gas supply pipe
108: gas nozzle
109, 119: primary air supply pipe
111: Spark plug
210: transfer pipe
310: Diaphragm pump
311: primary air inlet
312: air injection nozzle

Claims

Body housing (103) formed with salt spraying (106):
A transfer pipe 210 formed with a gas nozzle 108 and connected to the body housing 103 while forming a gas flow path to be supplied to the salt flushing 106;
A gas supply pipe 107 connected to the transfer pipe 210;
A primary air supply pipe 119 connected directly to the body housing 103 and connected in a straight line to a flow path formed in the body housing 103;
And a diaphragm pump (310) connected to the primary air supply pipe (119) for forcibly injecting the primary air,
The conveyance pipe 210 has an expansion part formed at one end thereof connected to the body housing 103 and the other end being expanded. The expansion part of the conveyance pipe 210 is formed to have a gradually increasing diameter as it goes to the right,
The transfer tube 210 is connected to the body housing 103 in a direction perpendicular to the body housing 103,
The primary air supply pipe 119 is disposed below a portion where the transfer pipe 210 and the body housing 103 are connected to supply the gas located at the connected portion to the salt- doing,
Air injection type gas burner.

delete

The method according to claim 1,
The diaphragm pump 310,
An air injection nozzle 312 having a primary air inlet 311 formed at one side thereof and connected to the primary air supply pipe 119; / RTI >
Air injection type gas burner.

The method according to claim 1,
The diaphragm pump 310,
Wherein the amount of primary air is controlled to be provided in proportion to the amount of gas supplied from the gas supply pipe (107) to the body housing (103)
Air injection type gas burner.