Gas combustion-type frying apparatus

Abstract

The present invention relates to a gas combustion-type frying apparatus and, more specifically, to a gas combustion-type frying apparatus capable of adjusting temperature while more rapidly heating frying oil in a frying tank by using flames and heat generated through gas combustion. To achieve the above purpose, the gas combustion-type frying apparatus according to the present invention comprises a frying oil tank provided with a burner port and an exhaust port formed on a wall body, and a heating means which is installed under the bottom portion of the oil tank and heats the frying oil, wherein the heating means comprises a heat-exchanging circuit of which both ends are connected to the burner port and the exhaust port across the bottom portion of the oil tank, a gas burner installed in the burner port, and a gas blower connected to the burner port.

Description

gas-fired fryer

[0001] The present invention relates to a gas-fired fryer, and more particularly, to a gas-fired fryer that uses flames and heat generated by gas combustion to heat frying oil in a frying tank more quickly while enabling temperature control.

[0002] Frying is a dish in which various foods are dipped in high-temperature frying oil and fried. It is often cooked by coating the frying ingredients in flour or pancake mix.

[0003] To cook food in this frying method, restaurants use large-capacity fryers. These fryers heat frying oil, such as cooking oil, in a tank with a built-in heater, then add ingredients to fry the food.

[0004] Because fried foods require the ingredients to be fried quickly at the optimal temperature to enhance the texture and taste, conventional commercial fryers have focused on frying large quantities of ingredients more quickly and quickly.

[0005] However, conventional fryers have the disadvantage of taking a long time to heat the frying oil to the frying temperature because they use an electric heating rod.

[0006] In particular, since the electric heating rod requires preheating time, there was a problem that it took more time to reheat the frying oil.

[0007] In addition, there are cases where a fryer is needed in places where electricity cannot be used, such as outdoors. In these cases, power cannot be supplied to the electric heating rod, so a conventional fryer cannot be used right away, and there is the inconvenience of having to do wiring work for electricity supply.

[0008] Meanwhile, inside the frying tank, impurities remain, including residues from the frying ingredients, residues that have burned after being heated for a long time, and foreign substances that come in from the outside.

[0009] Frying oil (cooking oil) mixed with impurities like this easily spoils, and if reused, the frying oil itself oxidizes, making it unusable and contaminating the ingredients to be fried. In addition, the color of the fried food darkens and deteriorates, and the taste also deteriorates. Therefore, it is very important to keep the frying oil in the tank as clean as possible and to replace it periodically.

[0010] Therefore, frequently replacing frying oil is beneficial for maintaining clean frying oil, but replacing frying oil too frequently increases the cost burden for frying oil, so users have been managing frying oil by removing impurities contained in frying oil with a kitchen sieve to keep the frying oil as clean as possible within the appropriate usage limit.

[0011] However, impurities in the oil tank do not only float on the frying oil, but also sink to the bottom of the oil tank and float. When using a large-capacity fryer in a business, it is very difficult to remove impurities that have sunk deep into the oil tank with a kitchen sieve, and there is a high risk of safety accidents such as burns, so there is a problem that it is not easy to remove the sunk impurities in the oil tank.

[0012] For reference, as a prior art regarding a conventional fryer, there is registered patent no. 10-1211833.

[0013] Accordingly, the present invention has been devised to solve the above-mentioned problems.

[0014] The purpose of this invention is to provide a gas-fired fryer that uses the flame and heat generated by gas combustion to heat the frying oil in the frying tank through heat exchange, thereby heating the frying oil more quickly and enabling temperature control, so that frying oil can be heated using a gas cylinder even in places where electrical wiring is not installed or work is difficult.

[0015] In order to achieve the above purpose, the gas combustion fryer according to the present invention,

[0016] A frying tank with a burner and exhaust vent formed on the wall and

[0017] Including a heating means installed at the bottom of the above tank to heat the frying oil,

[0018] The above heating means is characterized by including a heat exchange furnace having both ends connected to the burner and exhaust port across the bottom of the tank, a gas burner installed in the burner, and a gas blower connected to the burner.

[0019] And in the gas combustion fryer according to the present invention,

[0020] The above furnace is characterized by being connected in a zigzag shape.

[0021] Also, in the gas combustion fryer according to the present invention,

[0022] The above burner is characterized by including a diffusion port formed with a plurality of micro-pores to diffuse the blown gas throughout the furnace, and an igniter to ignite the flame.

[0023] In addition, in the gas combustion fryer according to the present invention,

[0024] The burner is characterized by including a fire bracket that is coupled to seal the firebox, the diffuser is protruded and connected, and has a mounting hole into which the igniter is fitted.

[0025] The gas combustion fryer according to the present invention is:

[0026] Breaking away from the typical electric heating method, it heats the frying oil using gas combustion, so it is possible to use the fryer by using a gas cylinder even in places where electrical wiring is not installed, and by directly heating the frying oil through flame and heat, it is possible to heat the frying oil more quickly and even control the temperature.

[0027] By increasing the heat exchange area and allowing the gas to be burned with maximum diffusion throughout the furnace, the heating speed of the frying oil can be further shortened.

[0028] Gas is blown in the reverse direction to prevent safety accidents such as fire caused by sparks.

[0029] By forming the bottom of the oil tank with a fluid engineering slope structure in line with the direction of the oil discharge and supply flow of the frying oil tank, all accumulated sediment in the oil tank is naturally discharged, the frying oil is filtered, and the filtered frying oil is circulated to the oil tank for replenishment, which has the effect of keeping the frying oil in the oil tank clean for a longer period of time.

[0030] Figure 1 is a front view of a frying device according to the present invention.

[0031] Figure 2 is a plan view of a frying device according to the present invention.

[0032] Figure 3 is a cross-sectional view of a frying tank according to the present invention as viewed from above.

[0033] Figure 4 is a cross-sectional view of a frying tank according to the present invention viewed from the side.

[0034] Figure 5 is a cross-sectional view of a frying tank according to the present invention viewed from the front.

[0035] Figure 6 is a sample photograph of a diffusion device according to the present invention.

[0036] Figure 7 is a drawing for explaining a loosening prevention bolt for a fire bracket according to the present invention.

[0037] *Description of the main parts of the drawing*

[0038] 10: Body 20: Tank

[0039] 221: Supply port 222: Discharge port

[0040] 223: Crater 224: Exhaust

[0041] 30: Heating means 31: Furnace

[0042] 32: Burner 33: Blower

[0043] 34: Exhaust pipe 311: Combustion pipe

[0044] 312: Heat exchange pipe 313: Noise reduction tube

[0045] 321: diffuser 322: igniter

[0046] 323: Mounting 324: Bracket

[0047] The present invention is susceptible to various modifications and may take various forms. Therefore, embodiments (or examples) are described in detail herein. However, this is not intended to limit the present invention to a specific publication form, and it should be understood that all modifications, equivalents, and alternatives fall within the spirit and technical scope of the present invention.

[0048] In each drawing, the same reference signs, especially the tens and units digits, or the tens, units digits, and alphabets, indicate parts having the same or similar functions, and unless otherwise specified, the parts indicated by each reference sign in the drawing are understood to be parts that comply with these standards.

[0049] In addition, in each drawing, the components are expressed in an exaggerated (or thick) or simplified (or thin) size or thickness for convenience of understanding, but the scope of protection of the present invention should not be interpreted as being limited by this.

[0050] The terminology used herein is merely used to describe specific implementations (modes, aspects) (or examples) and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0051] In this application, terms such as “include” or “consist of” are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0052] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0053] The terms "first", "second", etc. described in this specification are only used to distinguish between different components, and are not limited to the manufacturing order, and their names may not be consistent in the detailed description of the invention and the claims.

[0054] For the convenience of describing the gas-fired fryer according to the present invention, a rough, non-strict direction reference is specified with reference to FIG. 1. The direction in which gravity acts is downward, and the up, down, left, and right are determined as the direction shown, and the detailed description of the invention and claims related to other drawings also specify and describe the direction according to this reference unless otherwise specifically stated.

[0055] Hereinafter, a gas combustion fryer according to the present invention will be described with reference to the attached drawings.

[0056] The present invention, as shown in FIGS. 1 to 5, largely includes a main body (10), a frying oil tank (20), and a heating means (30).

[0057] Specifically, the gas combustion fryer according to the present invention,

[0058] A frying tank (20) having a burner (223) and an exhaust port (224) formed on a wall (22) and

[0059] It includes a heating means (30) installed at the bottom of the above oil tank (20) to heat the frying oil,

[0060] The above heating means (30) includes a heat exchange furnace (31) having both ends connected to the crater (223) and the exhaust port (224) across the bottom of the oil tank (20), a gas burner (32) installed in the crater (223), and a gas blower (33) connected to the crater (223).

[0061] First, the main body (10) of the present invention is formed such that the first housing part (11) in which the frying oil tank (20) is installed can be opened and closed with an upper lid, and a second housing part (12) is connected to the rear upper part of the first housing part (11) through a frame and side plate structure, and a frying oil filtering unit (not shown) is installed at the rear of the first housing part (11) and the second housing part (12).

[0062] In addition, various related components of a known fryer, such as a filter member, a motor pump for circulating frying oil, and a circulation pipe, may be provided at the rear of the second housing part (12) and the first housing part (11), as a frying filtration unit not shown in the drawing.

[0063] The above frying oil tank (20) is sealed on all sides except the upper surface, and the heating means (30) is installed close to the lower part of the upper part of the bottom surface to heat the frying oil in the tank (20) to a high temperature.

[0064] This oil tank (20) is provided with one central discharge port (221) and two side supply ports (222) at the lower end of the rear wall (22), and the discharge port (221) and supply ports (222) are connected to the circulation pipe of the frying oil filtration unit.

[0065] In addition, the above-mentioned crater (223) and exhaust port (224) can be provided on one of the walls (22) of the tank (20). In the drawing, an embodiment can be confirmed in which the crater (223) is provided on one side of the front wall of the tank (20) and the exhaust port (224) is provided on the other side of the rear wall of the tank (20).

[0066] The above furnace (31) is connected in a zigzag shape, and in the drawing, an S-shaped furnace (31) is shown as a representative example, but the zigzag structure of the furnace (31) may vary depending on the positions of the fire port (223) and the exhaust port (224).

[0067] Specifically, the above furnace (31) is composed of a combustion pipe (311), a heat exchange pipe (312), and a noise reduction tube (313).

[0068] The above combustion pipe (311) is connected to the inside of the crater (223), the heat exchange pipe (312) is connected to the combustion pipe (311) in a zigzag bend structure, and the noise reduction tube (313) is connected in a direction perpendicular to the exhaust port of the combustion pipe (311) so that the combustion pipe (311) and the exhaust port (224) are connected in an alternating manner.

[0069] At this time, when explaining the size relationship of the cross-sectional area of ​​the above furnace (31), it has a size relationship consisting of heat exchange pipe (312) < combustion pipe (311) < noise reduction tube (313).

[0070] The above combustion pipe (311) is extended in the longitudinal direction of the gas supply pipe, and the burner (32) is installed inside the combustion pipe (311).

[0071] The above heat exchange pipe (312) has a zigzag structure that covers the entire bottom of the oil tank (20) to the maximum extent possible, thereby increasing the contact area with the frying oil, i.e., the heat exchange area.

[0072] The above noise reduction tube (313) is installed in a square shape to expand the space between the heat exchange pipe (312) and the exhaust port (224) by connecting them in an offset manner.

[0073] The above burner (32) includes a diffusion port (321) in which a plurality of micro-pores are formed to diffuse the blown gas throughout the furnace (31), and an igniter (322) that ignites the flame.

[0074] The above-mentioned diffusion port (321) is integrally protruded from the bracket (323) described later, and has a rod shape by processing a plurality of metal threads into a form similar to weaving, and is connected to the inner surface of the bracket (323) by welding.

[0075] The above igniter (322) generates a spark for ignition, and either an electronic igniter or a piezoelectric igniter used for gas ignition can be used, but due to the sealed nature of the combustion pipe (311), it is more preferable to use an electronic igniter.

[0076] In addition, the burner (32) is coupled to seal the firebox (223), and includes a fire bracket (323) having a mounting hole (324) into which the diffusion port (321) is protruded and connected and into which the igniter (322) is fitted.

[0077] The above fire bracket (323) is bolted to the front of the front wall where the fire hole (223) is formed, and the mounting hole (324) is formed by penetrating through the upper portion of the diffusion hole (321).

[0078] The above blower (33) is connected to the above crater (223) (more precisely, the bracket (323)) and the gas supply pipe (331), and has a built-in blower fan to forcibly blow the gas fuel supplied to the gas supply pipe (331) into the inside of the combustion pipe (311).

[0079] In this heating means (30), when the blower (33) operates after gas injection, gas fuel is blown into the combustion pipe (311).

[0080] At this time, the gas being blown is diffused and blown widely throughout the entire combustion pipe (311) due to the micro-pores of the diffusion port (321).

[0081] At the same time, when the igniter (322) is operated, combustion of gas occurs within the combustion pipe (311) and a flame is ignited, and this flame is completed by passing through the heat exchange pipe (312) by the blowing pressure.

[0082] The flame and heat combusted as gas in this way rapidly heat the frying oil as they pass through the heat exchange pipe (312), and in particular, explosive combustion occurs through compression as they pass through the heat exchange pipe (312) having a smaller cross-sectional area than the combustion pipe (311), so that the heating temperature is very high, and the zigzag structure of the heat exchange pipe (312) allows for uniform heating of the entire frying oil, thereby quickly shortening the heating time.

[0083] In addition, the combusted exhaust gas passes through the heat exchange pipe (312) and is then exhausted to the outside of the tank (20) through the exhaust pipe (34). At this time, if the high-pressure exhaust gas is directly discharged through the exhaust pipe (34), a very loud noise is generated.

[0084] Accordingly, the heat exchange pipe (312) and the exhaust port (224) are connected in an alternating manner to the noise reduction tube (313) so that the exhaust gas is not exhausted directly but is exhausted after the pressure is relieved in the noise reduction tube (313), thereby reducing noise generation.

[0085] By adopting a gas combustion heating method different from the conventional electric heating rod, not only is the frying oil heated quickly, but the heating temperature can be changed immediately by adjusting the amount of air blown, which has the advantage of being more advantageous in controlling the temperature of the frying oil.

[0086] Meanwhile, as previously explained, impurities generated during frying spoil the taste of fried food. Therefore, the present invention forms the bottom of the oil tank (20) with a fluid engineering slope structure in accordance with the direction of the frying oil discharge and supply flow of the oil tank (20), thereby enabling all accumulated sediment within the oil tank (20) to be naturally discharged.

[0087] To this end, the bottom surface (21) of the above-mentioned tank (20) is composed of a horizontal bottom portion (211) connected forward from the supply port (222), an inclined bottom portion (212) connected downwardly and slanted backward toward the discharge port (221) between the horizontal bottom portion (211), and an inclined side wall portion (213) connected downwardly and slanted inwardly between the horizontal bottom portion (211) and the inclined bottom portion (212).

[0088] The above horizontal bottom portion (211) is a '-' shaped horizontal plane having a width greater than the left and right width of the supply port (222) and covers the front and rear left and right sides of the bottom surface (21) of the oil tank (20).

[0089] The above-mentioned inclined bottom part (212) is connected at a predetermined angle from the front end to the rear end and is connected to the discharge port (221), and is formed in the structure of a front-to-back narrowing. At this time, the width of the rear end of the inclined bottom part (212) is formed to be larger than that of the discharge port (221).

[0090] The above-mentioned inclined side wall portion (213) is in a form that slopes downward inward by connecting the horizontal bottom portions (211) on the left and right and the inclined bottom portion (212) in the center.

[0091] Accordingly, the frying oil sucked into the discharge port (221) by the operation of the motor pump (not shown) of the frying oil filtration unit passes through the filter member (not shown) and filters the accumulated sediment, and then the filtered frying oil is circulated to the supply port (222) and replenished.

[0092] At this time, the frying oil on the upper part of the bottom surface (21) of the above-mentioned oil tank (20) flows from the rear of the left and right sides of the oil tank (20) to the front, then turns to the center at the front end of the oil tank (20) and flows from the front to the rear.

[0093] Accordingly, the sediments on the upper part of the horizontal bottom (211) flow together with the frying oil and are guided to the inclined bottom (212) or flow along the inclined side wall (213) and are collected at the inclined bottom (212). The sediments collected at the inclined bottom (212) are sucked into the discharge port (221) and discharged along with the flow of the frying oil that flows along the inclined bottom (212), thereby discharging all the sediments in the tank (20) and filtering the frying oil. Therefore, the frying oil is kept clean for a longer period of time, preventing the taste of fried food from deteriorating, and also reducing contamination of the frying oil, thereby extending the frying oil replacement cycle.

[0094] Meanwhile, as shown in FIG. 6, the bracket (323) is connected to a wall (22) in which a crater (223) is formed, and then a gas supply pipe (331) is connected to a gas inlet (325) to which a diffusion port (321) is connected. However, gas may leak through a microscopic gap between the bracket (323) and the gas supply pipe (331).

[0095] Accordingly, the present invention adds a confidentiality means as shown in Fig. 7.

[0096] First, the above burner (32) includes a protrusion (326) in which a gas inlet (325) is formed by protruding a central portion of the bracket (323) rearward in a square shape.

[0097] The above confidential means are,

[0098] A flange (332) of a gas supply pipe (331) that is connected while covering the circumference of the above gas inlet (325),

[0099] A sealing groove (34) having a tapered portion (341) in which a groove with a 'T'-shaped cross-section is formed in the circumferential direction on the inner surface of the flange (332), and the depth of the inner end is gradually reduced inward.

[0100] A packing (35) that is formed in a shape corresponding to the cross-section of the above-mentioned confidential groove (34) and is fitted into the confidential groove (34), but forms an air layer in the above-mentioned tapered portion (341).

[0101] It is characterized by including an air supply unit (not shown) that allows air to circulate and be supplied to the above air layer.

[0102] The above burner (32) has a diffusion port (321) protruding from the front of the protrusion (326), and the center of the protrusion (326) is open to form a gas inlet (325).

[0103] The above gas supply pipe (331) is provided with a flange (332) that is bent on the outside at the tip, and the sealing groove (34) is formed on the front of the flange (332).

[0104] The above-mentioned confidential home (34) is in the shape of a 'T' with the inner and outer widths formed larger than the front and rear depth, and a tapered portion (341) formed so that the bottom surface of the inner end is inclined upward (forward) toward the gas inlet (325) is connected thereto.

[0105] The above packing (35) has a 'T' shaped cross-sectional structure so that it can be forcibly fitted into the sealing groove (34), but has a short width so that the inner end does not encroach on the tapered portion (341), so that when the packing (35) is fitted into the sealing groove (34), a free space is created on the tapered portion (341) to form the air layer.

[0106] In addition, the tapered portion (341) is connected to an air injection hole (342) extending through the length of the gas supply pipe (331), and an air injection port (334) is formed in which the rear end of the air injection hole (342) is connected to a fitting portion (333) protruding from the outer surface of the gas supply pipe (331), so that a hose (36) for supplying air is coupled to the fitting portion (333) so that the air injection port (334) - air injection hole (342) - tapered portion (341) form a single flow path, and as air circulates and is supplied, an air layer is formed on the tapered portion (341). At this time, an air discharge port (not shown) is connected in a similar shape to the air injection port (334).

[0107] Accordingly, the above-mentioned airtight groove (34) forms an air layer that prevents gas leakage by allowing the air supplied to the above-mentioned tapered portion (341) to continuously circulate and blow in the circumferential direction of the gas inlet (325).

[0108] In particular, as the depth of the inner end groove of the sealing groove (34) is gradually reduced due to the tapered portion (341), the air flowing through the tapered portion (341) increases in speed as it passes the inner end of the tapered portion (341), thereby causing the air to be ejected through the micro-gap between the protrusion (326) and the flange (332), thereby primarily preventing gas leakage by pushing the leaking gas to the gas supply pipe (331), and at the same time, the packing (35) is pressed by the air pressure to seal the space between the protrusion (326) and the flange (332), thereby further preventing gas leakage, thereby maximizing the effect of blocking gas leakage.

[0109] In describing the present invention above, the gas combustion fryer has been mainly described with reference to the attached drawings, but the present invention can be variously modified, changed and substituted by those skilled in the art, and such modifications, changes and substitutions should be interpreted as falling within the scope of protection of the present invention.

Claims

1. A frying tank with a burner and exhaust vent formed on the wall, and Including a heating means installed at the bottom of the above tank to heat the frying oil, A gas-fired fryer characterized in that the heating means comprises a heat exchange furnace having both ends connected to the burner and exhaust port across the bottom of the tank, a gas burner installed in the burner, and a gas blower connected to the burner.

2. In paragraph 1, A gas-fired fryer characterized in that the above furnaces are connected in a zigzag shape.

3. In paragraph 1, A gas-fired fryer characterized in that the burner includes a diffusion port formed with a plurality of micro-pores to diffuse the blown gas throughout the entire furnace, and an igniter to ignite the flame.

4. In paragraph 3, A gas-fired fryer characterized in that the burner is coupled to seal the firebox, the diffusion port is protruded and connected, and includes a fire bracket having a mounting hole into which the igniter is fitted.

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