Gas Range with hazardous Gas Removal

Abstract

The present invention relates to a gas range, and the problem to be solved is to prevent harmful gases generated during the combustion process from being discharged into the indoor space and to improve thermal efficiency by concentrating the flame towards the center. To this end, the present invention comprises: a housing having at least one mounting hole formed in a hollow shape; a burner body installed in the mounting hole and having an open top; and a burner head coupled to the top of the burner body; wherein the burner head includes an intake hole formed through the center and a flame hole formed through the periphery of the intake hole, so that harmful gases generated during the combustion process are discharged through the intake hole.

Description

Technology Field

[0001] The present invention relates to a gas range that allows harmful gases generated during the combustion process to be discharged to the outside. Background Technology

[0002] Generally, a gas range is a cooking appliance designed to utilize heat and high temperatures by burning fuels such as liquefied petroleum gas (LPG) or liquefied natural gas (LNG), and there are various types ranging from small ones used in household stoves to portable gas ranges and large commercial gas ranges.

[0003] While gas stoves offer high thermal efficiency and convenience, they pollute indoor air by generating various harmful gases, such as carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), and formaldehyde, during the combustion process.

[0004] The more incomplete the combustion of fuel or the poorer the ventilation, the higher the level of exposure to harmful gases indoors; this can cause respiratory symptoms such as coughing and difficulty breathing, or adversely affect lung function if exposed for a long period. In particular, benzopyrene, found in soot, is classified as a Class 1 carcinogen that causes lung cancer.

[0005] Korean Registered Patent Publication No. 10-0435462 (Title of Invention: Air-purifying kitchen gas range hood) is disclosed as prior art for solving such problems.

[0006] However, while gas range hoods like the prior art play an important role in exhausting harmful gases, they cannot perfectly remove all harmful gases, and a problem arises where they cannot sufficiently inhale harmful gases, particularly if the suction power is low or the distance between the hood and the gas range is not appropriate.

[0007] In addition, if cooking utensils are placed on the burner, most harmful gases cannot enter the hood.

[0008] Korean Patent Registration No. 10-2724323 (gas range equipped with a toxic gas removal device) is also proposed to solve this problem, but it has in common with Korean Registered Patent Publication No. 10-0435462 that a gas intake rim is formed on the outer side of the burner head.

[0009] In such cases, when a flame is generated from the combustion gas in the burner head, the temperature rises and the combustion gas expands, causing the combustion gas to scatter around the burner head, which is a technical problem that reduces combustion efficiency. Additionally, there is a technical problem that involves structural complexity because gas intake ports must be formed evenly around the burner head. Prior art literature

[0011] Korean Registered Patent Publication No. 10-1927260 Korean Registered Patent Publication No. 10-2724323 The problem to be solved

[0012] The present invention provides a gas range that prevents harmful gases generated during the combustion process from being discharged into the room and improves thermal efficiency by concentrating combustion gases generated from the flame towards the center of the flame.

[0013] However, the technical problems that the present invention aims to solve are not limited to those described above, and other unmentioned problems can be clearly understood by those skilled in the art from the description of the invention below. means of solving the problem

[0014] A gas range for discharging harmful gases according to the present invention may include: a housing having at least one mounting hole formed in a hollow shape; a burner body installed in the mounting hole and having an open top; and a burner head coupled to the top of the burner body.

[0015] The burner head described above includes an intake hole formed through the center and a flame hole formed through the periphery of the intake hole, so that harmful gases generated during the combustion process can be discharged through the intake hole.

[0016] The burner body may include a suction pipe, one end of which is connected to the suction port and the other end of which is connected to a vacuum pump to form a path for discharging harmful gases, and a supply pipe that mixes fuel gas and air and supplies them to the flame port. At this time, after the fuel gas and air are supplied through the supply pipe and a flame is formed, the vacuum pump may be operated to discharge the harmful gases.

[0017] The above supply pipe is configured to include a heat exchanger through which the above suction pipe passes, so that the fuel gas transferred to the supply pipe can be preheated by the heat of the combustion gas sucked into the above suction pipe.

[0018] The upper surface of the center of the burner head where the intake hole is formed can be formed to protrude upward so that the opening of the intake hole located on the upper surface of the burner head is positioned higher than the opening of the flame hole.

[0019] The upper part of the burner body is exposed to the upper part of the housing, and the burner head can be formed in a shape that wraps around the upper outer surface of the burner body and is in close contact with the upper part of the housing. Effects of the invention

[0020] The gas range according to the present invention increases combustion efficiency to reduce the rate of harmful gas generation caused by incomplete combustion, and prevents the emission of harmful gases into the indoor space by inhaling the harmful gases in an area adjacent to the combustion zone. In addition, it increases the thermal energy transferred to the cooking appliance by concentrating the flame towards the center.

[0021] However, the effects obtainable through the present invention are not limited to those described above, and other unmentioned technical effects will be clearly understood by those skilled in the art from the description of the invention below. Brief explanation of the drawing

[0022] FIG. 1 is a schematic plan view showing a burner head of a gas range for emitting harmful gases according to one embodiment of the present invention. Figure 2 is a cross-sectional view showing the AA section of Figure 1. FIG. 3 is a drawing showing the burner head of a gas range for emitting harmful gases according to one embodiment of the present invention being coupled to a burner body. FIG. 4 is a drawing showing the operation of a gas range for emitting harmful gases according to one embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, a preferred embodiment of a gas range for emitting harmful gases according to one embodiment of the present invention will be described with reference to the attached drawings.

[0024] Since the thickness of lines or the size of components, etc., shown in the drawings may be exaggerated for clarity and convenience of explanation, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0025] FIG. 1 is a schematic plan view showing a burner head of a gas range for emitting harmful gases according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing the AA cross section of FIG. 1. FIG. 3 is a drawing showing the burner head of a gas range for emitting harmful gases according to an embodiment of the present invention being coupled to a burner body.

[0026] Referring to FIGS. 1 to 3, a gas range for discharging harmful gas according to one embodiment of the present invention comprises a housing (100), a base (200), a burner body (300), and a burner head (400).

[0027] The housing (100) is formed in a hollow shape, and at least one mounting hole is formed in the upper part. The mounting hole may be formed with a diameter that is relatively larger than or equal to the diameter of the burner body (300).

[0028] The support portion (200) is for supporting a cooking utensil and can be formed radially around the edge centered on the mounting hole.

[0029] The burner body (300) is installed through the mounting hole and is provided inside the housing (100), and a supply pipe (310) for supplying fuel gas and air simultaneously and a suction pipe (320) for discharging harmful gas to the outside are connected.

[0030] The supply pipe (310) is connected to one side of the lower part of the burner body (300) and uses the venturi effect to guide the flow of fuel gas and air so that they are mixed together.

[0031] The suction pipe (320) is connected by penetrating the burner body (300), with one end located at the top of the burner body (300) and coupled to the burner head (400), and the other end coupled to the suction unit provided on the outside of the burner body (300).

[0032] The suction unit consists of a vacuum pump for drawing in gas and expelling it to the outside, and a filter for filtering out harmful gases.

[0033] The burner head (400) is formed from a plate of a set thickness and is provided on the top of the burner body (300). A flame hole (410) for forming a flame and a suction hole (420) connected to a suction pipe (320) for discharging harmful gases are formed.

[0034] The flame holes (410) can be formed radially at regular intervals centered around the intake holes (420). The flame holes (410) form a path that allows fuel gas and air supplied to the burner body (300) to be discharged to the upper part of the burner head (400).

[0035] The intake port (420) is formed in the center of the burner head (400) and forms a path that allows harmful gases generated during the combustion process to be discharged through the intake pipe (320).

[0036] The burner head (400) is divided into an intake area where an intake hole (420) is formed and a combustion area where a plurality of flame holes (410) are formed, and the length between the upper and lower parts of the intake area can be formed to be longer than the length between the upper and lower parts of the combustion area.

[0037] That is, the center of the burner head (400) where the suction hole (420) is formed is formed to protrude upward and downward by a set length, and the cross-section of the suction hole (420) is formed in a circular shape.

[0038] By positioning the opening of the intake hole (420) formed on the upper surface of the burner head (400) higher than the opening of the flame hole (410), fuel gas discharged through the flame hole (410) is prevented from flowing directly into the intake hole (420).

[0039] The distance between the flame hole (410) closest to the suction hole (420) and the suction hole (420) can be formed to be longer than the distance between the flame hole (410) closest to the outer surface of the burner head (400) and the outer surface.

[0040] A coupling part (430) for coupling with a suction pipe (320) is formed on the outer surface of the central part protruding downward from the burner head (400). The coupling part (430) is formed using methods such as snap coupling or screw coupling, and is applied in a way that maintains airtightness so that fuel gas supplied through the supply pipe (310) does not flow into the suction pipe (320).

[0041] Alternatively, the suction pipe (320) may be formed to protrude a set length above the burner body (400) and be coupled to the center of the burner head (400).

[0042] The outer diameter of the burner head (400) is formed to be longer than the outer diameter of the burner body (300) exposed above the housing (100). Additionally, a blocking portion (440) is formed around the lower edge of the burner head (400) and protrudes downward for a set length.

[0043] The blocking part (440) surrounds the outer surface of the burner body (300) and is in close contact with the top of the housing (100), preventing fuel gas from leaking through the joint between the burner head (400) and the burner body (300).

[0044] And the blocking part (440) is formed with a downward slope to prevent liquid, such as broth falling during the cooking process, from penetrating into the seam.

[0045] At the top of the housing (100), a spark plug that forms a flame using fuel gas discharged through a flame hole (410) and a heat sensor that detects heat caused by the flame are formed.

[0046] The ignition plug is provided on one side of the burner head (400) and, after being formed to a set height, the end where the electrode is located is bent so that it can be positioned at the top of the flame hole (410).

[0047] FIG. 4 is a drawing showing the operation of a gas range for emitting harmful gases according to one embodiment of the present invention.

[0048] A preferred embodiment of a gas range control method is described with reference to FIG. 4.

[0049] The control method is configured to include a gas supply step (S100), a flame formation step (S200), and an intake step (S300).

[0050] In the gas supply step (S100), fuel gas and air are mixed through the supply pipe (310) and flow into the flame hole (410).

[0051] In the flame formation step (S200), the spark plug and the heat sensor operate, and a flame is formed by the spark plug, and the heat sensor detects this and generates a signal regarding whether there is a fuel gas leak.

[0052] The suction step (S300) is when the suction unit operates, and after a set time has elapsed following the flame formation step (S200), the suction unit operates and discharges harmful gas to the outside through the suction port (420). The set time refers to the time required to prevent fuel gas discharged to the upper part of the burner head (400) through the flame port (410) from entering through the suction port (420).

[0053] In addition, during the intake stage (S300), negative pressure is formed in the intake area, allowing external air to be introduced and supplied to the adjacent combustion area. As a result, combustion efficiency is improved, thereby reducing the amount of carbon monoxide (CO) and formaldehyde generated due to incomplete combustion.

[0054] Nitrogen oxides (NOx) and carbon dioxide (CO2) are heavier than air and sink to the bottom, so they are introduced into the intake port (420) by the intake unit along with generation.

[0055] Additionally, since a flow is formed in which gas around the burner head (400) is introduced into the intake port (420) by the intake unit, the flame located in the combustion area is formed in a form that is concentrated towards the center of the burner head (400).

[0056] A valve for controlling the intake pressure of the intake unit may be provided separately from the valve for controlling the fuel gas emission, and through this intake pressure control valve, the flame shape or the amount of external air supplied to the combustion zone can be controlled.

[0057] In addition, the intake pressure is set according to the fuel gas emission, allowing the amount of external air supplied to the flame shape and combustion zone to be controlled to remain constant.

[0059] Let us examine the effects of the present invention formed as described above together with Figure 4.

[0060] The left side of FIG. 4 shows a flame before a flow of gas around the burner head (400) into the intake port (420) is formed by the intake unit, and the right side of FIG. 4 shows a flame after a flow of gas around the burner head (400) into the intake port (420) is formed by the intake unit.

[0061] As shown on the left side of Fig. 4, when a flame is generated in the fuel gas, the temperature rises and the volume expands, causing the flame to spread out to the surroundings.

[0062] Since the flame is primarily positioned directly above the burner head, such flame diffusion causes a large amount of heat to be wasted to the surroundings regardless of its intended use.

[0064] However, as shown on the right side of Fig. 4, when harmful gases are discharged through the suction hole (420) of the present invention, the expansion pressure is relieved, so the flame located in the combustion area is formed in a shape concentrated towards the center of the burner head (400), and thus there is an advantage of improving the efficiency of flame usage.

[0065] According to the present invention, there is an advantage in resolving the technical problem of Korean Patent Registration No. 10-2724323 (gas range equipped with a toxic gas removal device), which was practically unusable due to reduced thermal efficiency caused by flame diffusion.

[0066] Meanwhile, as shown in FIG. 4, the supply pipe (310) can be configured to include a heat exchanger (330) through which the suction pipe (320) passes.

[0067] According to such a heat exchanger (330), there is an advantage in that the fuel gas transferred to the supply pipe (310) can be preheated by the heat of the combustion gas sucked into the suction pipe (320), thereby improving energy efficiency.

[0069] In addition, the present invention generates negative pressure in the flame hole (410) located relatively at the edge due to the suction hole (420) located at the central axis, thereby allowing external air to be drawn in.

[0070] As a result, the amount of air flowing in from the supply pipe (310) due to the Venturi effect can be adjusted to be relatively small, thereby allowing the optimal fuel and air mixture ratio to be set.

[0071] Conversely, the flame hole (410) located near the central axis has less chance of mixing with the external air entering due to the negative pressure caused by the intake hole (420), so the air entering from the supply pipe (310) due to the Venturi effect can be supplied at an optimal mixing ratio with the fuel.

[0072] Therefore, it may be considered to apply a supply pipe control device (not shown) that increases the amount of air supplied from the supply pipe as it moves from the edge of the flame hole toward the central axis, thereby supplying the flame hole closest to the central axis with an optimal fuel-to-air ratio.

[0073] Such a supply pipe control device can be configured by independently forming a supply pipe that connects from the edge of the flame hole to the central axis.

[0074] In addition, since the negative pressure changes according to the amount of combustion gas sucked into the intake pipe, the valve controlling the fuel supply of the gas range is linked to the amount of combustion gas sucked into the intake pipe, so the energy consumption required for intake can be minimized.

[0076] The terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0077] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0078] Therefore, the true technical scope of protection of the present invention should be determined by the patent claims. Explanation of the symbols

[0079] 100 : Housing 200 : Base 300: Burner body 310: Supply pipe 320 : Suction tube 330 : Heat exchanger 400: Burner head 410 : Yeomgong 420 : Intake port 430 : Joint 440 : Blocking section

Claims

Claim 1 A gas range for discharging harmful gases, comprising: a housing having at least one mounting hole formed in a hollow shape; a burner body installed in the mounting hole and having an open top; and a burner head coupled to the top of the burner body; wherein the burner head includes a suction hole formed through the center and a flame hole formed through the periphery of the suction hole, so that harmful gases generated during the combustion process are discharged through the suction hole, and the upper surface of the center of the burner head where the suction hole is formed is formed to protrude upward, so that the opening of the suction hole located on the upper surface of the burner head is positioned higher than the opening of the flame hole. Claim 2 A gas range for discharging harmful gases according to claim 1, wherein the burner body comprises a suction pipe, one end of which is connected to the suction port and the other end of which is connected to a vacuum pump to form a harmful gas discharge path, and a supply pipe that mixes fuel gas and air and supplies them to the flame port. Claim 3 A gas range for discharging harmful gases according to claim 2, characterized in that fuel gas and air are supplied through the supply pipe to form a flame, and then the vacuum pump is operated to discharge harmful gases. Claim 4 A gas range for emitting harmful gases according to claim 2, wherein the supply pipe is configured to include a heat exchanger through which the suction pipe passes, and preheats the fuel gas transferred to the supply pipe with the heat of the combustion gas sucked into the suction pipe. Claim 5 delete Claim 6 A gas range for emitting harmful gases according to claim 1, characterized in that the upper portion of the burner body is exposed to the upper portion of the housing, and the burner head is formed in a shape that surrounds the upper outer surface of the burner body and is in close contact with the upper portion of the housing.

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