KR101203962B1 - Gas burner for built-in - Google Patents

Abstract

PURPOSE: A built-in gas burner is provided to prevent safety accidents due to the overheating as the overheating information of materials is accurately sensed by a temperature sensor. CONSTITUTION: A built-in gas burner comprises a venturi body(10), a venturi head, a venturi cover(30), a burner body(40), a burner head(50), a temperature sensor(60), and a fuel pipe(70). The middle-diameter pipe of the venturi head is separated from a small-diameter pipe at a constant interval, and covers the outer periphery of the venturi body. The first upper casing of the venturi cover is extended from the lower part of a large-diameter pipe(31), and covers the first upper casing(32). The burner body is supplied with mixture gas by covering the path between the small diameter pipe and the middle diameter pipe. The burner head is inserted into the open end of the small diameter pipe, and covers the upper surface of the burner body. The lower part of the temperature sensor is extended toward the inside of the small diameter pipe. The fuel pipe is connected to one side of the first upper casing.

Description

Gas burner for built-in

The present invention relates to a built-in gas burner, and more particularly, a venturi structure and a nozzle for fuel supply are installed at the edge of the burner, a temperature sensor serving as an overheat prevention device is installed at the center of the burner, and the venturi structure is horizontally structured. It relates to a built-in gas burner to the fuel pipe and the nozzle in the same line at the venturi inlet.

Generally, a gas burner is a device for efficiently burning gaseous fuels to utilize heat and high temperature, and there are various types, ranging from small-sized ones used for domestic winds to large-scale industrial burners used for boilers of thermal power plants, The method of mixing fuel and air is broadly classified into two types, ie, a premixed type and a diffusion type.

In recent years, a built-in gas burner for use in a kitchen sink top plate has been released.

As an example, a built-in gas burner of the prior art, as shown in FIG. 1, has a cup body 3 having a nozzle 3a installed at the center thereof, and a cup body 3 disposed above the cup body 3 and mixed at the center thereof. The tube 5a is provided and includes a burner body 5 having a flame hole 5b on the upper edge thereof and a burner head 7 mounted on an upper portion of the burner body 5.

The built-in gas burner having such a configuration opens a gas valve and ejects gas through the nozzle 3a to the upper portion of the burner body 5 so that external air is sucked from the upper part of the burner by the ejection pressure, mixed with gas, and mixed with gas. The mixed gas is continuously blown upward and hits the bottom of the burner head 7 covered on the top of the burner body 5 and then spreads radially toward the salt hole 5b and passes through the salt hole 5b. As a result, the spark is sparked by a spark of an ignition plug (not shown) as it is ejected to the outside of the burner body 5.

At this time, the required air is sucked from the burner top, so it is not affected by the internal pressure of the product in which the burner is installed.

However, such a built-in gas burner of the prior art has a problem that it is difficult to mount a temperature sensor in the center of the burner because the nozzle is a method of vertically injecting gas directly from the center of the burner without venturi.

The present invention has been made to solve the above problems, the object of the present invention is to install a nozzle for supplying the venturi structure and fuel on the edge of the burner, and to install a temperature sensor which is an overheat prevention device in the center of the burner, By inhaling air from the upper part of the burner, it is possible to accurately sense the overheating information of the heated object heated by the burner through the temperature sensor at the center of the burner while preventing the burner from being affected by the pressure inside the installed product. It is to provide a built-in gas burner that can be prevented in advance, as well as to improve the completeness of the cooking and improve the reliability of the product.

In addition, the venturi of the horizontal structure to improve the primary air suction force, as well as to provide a built-in gas burner for simplifying the connection of the fuel pipe and the nozzle accordingly.

Built-in gas burner according to an embodiment of the present invention for achieving the above object is a small diameter tubular body, the lower end is integrally fixed to the bottom surface and the upper end thereof extends upward, and surrounds the lower outer periphery of the small diameter tubular body. A venturi body having an open upper venturi lower portion and a primary air lower casing wrapped around the venturi lower tube and opened upward; A venturi head having a mid diameter tubular body covering the outer circumferential portion of the venturi body at a predetermined distance from the venturi body, and a venturi upper corrugated portion extending from the lower end of the mid diameter tubular body to one side to cover the venturi lower tube part; A large diameter body covering the outer circumferential part of the venturi head at a predetermined distance from the middle diameter body, and a primary air upper casing extending from the lower end of the large diameter body to one side to cover the primary air lower casing; Venturi cover having; A burner body which covers a passage between the small diameter tubular body and the medium diameter tubular body and receives a mixed gas; A burner head which is inserted into the open upper end of the small diameter tubular body and covers the upper surface of the burner body and has a through hole in the center thereof; A temperature sensor mounted in a through hole of the burner head and having a lower end extending into a small diameter tube; And a fuel pipe communicatively coupled to one side of the primary air casing, which is molded into the primary air and the lower casing, to supply external fuel to the venturi pipe section formed of the venturi and the lower pipe section.

In addition, in the built-in gas burner according to an embodiment of the present invention, a nozzle is further provided at an end portion of the fuel pipe communicating with the inside of the primary air casing, and the nozzle is disposed on the same line as the inlet of the venturi tube. It is preferable to be.

In addition, in the built-in gas burner according to an embodiment of the present invention, the large diameter tubular body is so that the rear end thereof is in close contact with the outer circumferential surface of the medium diameter tubular body and a gap is formed only between the tip end and the outer peripheral surface of the distal end of the medium diameter tubular body. The primary air is preferably supplied to the front end of the venturi tube.

In addition, in the built-in gas burner according to an embodiment of the present invention, it is preferable to further include an upward guide part for guiding the mixed gas supplied into the venturi tube part upward on one side of the venturi tube part.

In addition, in the built-in gas burner according to an embodiment of the present invention, the upward guide portion has a structure inclined upward while surrounding the outer peripheral surface in a state spaced apart from the outer peripheral surface of the small diameter tubular body at a predetermined distance from the rear end of the venturi tube portion. It is preferable.

In addition, in the built-in gas burner according to an embodiment of the present invention, a lower plate is provided to block the lower portion of the small diameter tubular body of the venturi body, and a drain hole for discharging water such as broth downward on one side of the lower plate. It is preferred to be provided.

In addition, in the built-in gas burner according to an embodiment of the present invention, it is preferable that a lead wire passage hole for passing the lead wire of the temperature sensor to one side of the bottom of the venturi body.

In addition, in the built-in gas burner according to an embodiment of the present invention, it is preferable that a close contact pipe body extending downward to be in close contact with the inner circumferential surface of the small diameter tubular body of the burner head is further provided.

As described above, the built-in gas burner according to the present invention is provided with a venturi structure and a nozzle for fuel supply at the edge of the burner, and by installing a temperature sensor that is an overheat prevention device at the center of the burner, the air is blown from the top of the burner. While it is inhaled to prevent the burner from being influenced by the pressure inside the installed product, it can accurately sense overheating information of the heated object heated by the burner through the temperature sensor in the center of the burner and prevent safety accidents due to overheating. As well as being able to further increase the degree of completeness of the cooking is obtained the effect of improving the reliability of the product.

In addition, the venturi of the horizontal structure not only improves the primary air suction force, but also facilitates the connection between the fuel pipe and the nozzle.

In addition, by assembling a plurality of parts to form a venturi and a gas passage, it is easy to produce a narrow diameter through which gas passes.

1 is a schematic cross-sectional view showing a built-in gas burner according to the prior art.
2 is a perspective view showing a built-in gas burner according to an embodiment of the present invention.
3 is a perspective view showing a built-in gas burner for a built-in gas burner according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing a built-in gas burner for built-in gas burner according to an embodiment of the present invention.
Figure 5 is a perspective view showing a state in which the burner of the built-in gas burner according to an embodiment of the present invention is removed.
Figure 6 is a plan view showing a state in which the burner of the built-in gas burner according to an embodiment of the present invention is removed.
7 is an exploded perspective view showing a venturi part of a built-in gas burner according to an embodiment of the present invention.
8 is a partially cutaway exploded perspective view showing a venturi part of a built-in gas burner according to an embodiment of the present invention.
9 is a partial cutaway exploded cross-sectional view showing the venturi portion of the built-in gas burner according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 9, the built-in gas burner according to the exemplary embodiment of the present invention includes a venturi body 10, a venturi head 20 covering an outer circumference of the venturi body 10, and an venturi. The so-called Venturi part which consists of the venturi cover 30 which covers the outer periphery of the head 20, the burner body 40 and the burner head 50 arrange | positioned at the upper part of this venturi part, and the center of this burner head 50 is carried out. And a fuel pipe 70 for supplying fuel to the venturi part.

The venturi body 10 has a small diameter body 12 having a lower end integrally fixed to the bottom of the venturi body 10 and having an upper end extending upward, and a lower distance from a lower outer peripheral part of the small diameter body 12. Wrapped in a spaced apart state, one side of which extends in one direction and the upper opening venturi lower pipe portion 13, and surrounding the venturi lower pipe portion 13, the upper air casing (14) having an open upper It is.

In addition, a lower plate 11 is provided to block the lower end portion of the small diameter tubular body 12 of the venturi body 10 to prevent backflow, and one side of the lower plate 11 may discharge water such as broth downward. A drain 15 to be provided is provided.

In addition, a lower end side of the venturi body 10 is provided with a lead wire passage hole 16 that communicates with the outside so that a lead wire (not shown) of the temperature sensor 60 passes.

In addition, one side of the venturi tube portion is provided with an upward guide portion 17 for guiding the mixed gas supplied into the venturi tube portion upward, and the upward guide portion 17 is particularly small at the rear end of the venturi tube portion 13. The outer circumferential surface of the tubular body 12 is spaced apart from the outer circumferential surface in a state of being inclined upward while surrounding the outer circumferential surface.

The venturi head 20 is a medium diameter tubular body 21 covering the outer periphery of the venturi body 10 in a state spaced apart from the small diameter tubular body 12 at a predetermined interval, and at the lower end of the medium diameter tubular body 21. It has a structure having a venturi upper portion 22 extending to one side to cover the venturi lower tube portion (13).

That is, the venturi upper corrugated portion 22 of the venturi head 20 covers the upper surface of the venturi lower pipe portion 13 and is joined to form a flow path tube through which a predetermined mixed gas flows. It includes a lower end.

The venturi cover 30 has a large diameter tubular body 31 covering the outer circumferential portion of the venturi head 20 in a state spaced apart from the middle diameter tubular body 21 by a predetermined distance, and one side at a lower end of the large diameter tubular body 31. It has a structure having a primary air upper casing 32 extending to cover the primary air lower casing (14).

That is, the primary air upper casing 32 of the venturi cover 30 covers the upper surface of the edge of the primary air lower casing 14 to form a flow path through which external primary air flows to the venturi tube unit. It includes a lower end of the large diameter body 31 so as to.

Here, the external primary air is sucked through the flow path between the medium diameter tube 21 of the venturi head 20 and the large diameter tube 31 of the venturi cover 30.

At this time, the primary air sucked through the flow path is ejected upward along the flow path between the small diameter tubular body 12 and the medium diameter tubular body 21 in a mixed state with the gas (fuel) injected from the nozzle 71.

The burner body 40 covers a passage between the small diameter tubular body 12 and the medium diameter tubular body 21 so as to have a ring-shaped center penetrated to receive the mixed gas.

The burner head 50 is inserted into the open upper end of the small diameter tubular body 12 and covers the upper surface of the burner body 40 and has a through hole 51 in the center thereof. .

Here, the bottom surface of the through-hole 51 of the burner head 50 extends downward to be in close contact with the inner circumferential surface of the small diameter tubular body 12 to block the mixed gas from flowing into the small diameter tubular body 12. The close fitting body 52 is provided.

The temperature sensor 60 is mounted in the through hole 51 of the burner head 50 and has a two-stage cylindrical shape whose lower end portion extends into the small-diameter tubular body 12.

The fuel pipe 70 is communicatively coupled to one side of the so-called primary air casing in which the primary air and lower casings 32 and 14 are joined to each other, and the external fuel is supplied to the venturi upper and lower pipe portions 22 and 13. It has a circular tube structure which is supplied to the so-called Venturi tube section.

Further, a nozzle 71 is further provided at an end portion of the fuel pipe 70 communicating with the inside of the primary air casing, and the nozzle 71 is disposed on the same line as the distal end of the venturi tube portion.

The large diameter tubular body 31 has a rear end thereof close to the outer circumferential surface of the middle diameter tubular body 21 and a gap is formed only between the distal end portion and the outer peripheral surface of the distal end of the medium diameter tubular body 21. Primary air sucked from the outside by the injection force of is concentrated to be supplied to the inlet of the venturi tube.

Reference numeral 80 denotes an upper plate for installing the built-in gas burner, and 90 indicates an installation aid for installing the venturi part on the upper plate 80.

The built-in gas burner according to one embodiment of the present invention covers the venturi head 20 with the outer circumference of the venturi body 10, and then covers the venturi cover 30 with the outer circumference of the venturi head 20. The fuel pipe 70 is placed through the primary air casing which is in the same line as the inlet of the venturi tube, thereby completing the assembly of the so-called venturi unit.

In this case, a flow path is formed between the small diameter tube 12 and the medium diameter tube 21 so that the fuel flowing into the venturi tube unit and the mixed gas of the primary air flow into the upper burner to supply the gas to the upper burner. Between the 21 and the large diameter body 31, a flow path for introducing external primary air is formed.

Here, the flow path through which the primary air flows is blocked by the venturi body 10 and the venturi cover 30 from the inside of the product where the burner is installed, so that the influence of the pressure change inside the product does not occur.

At this time, it is preferable that the product in which the burner is installed is a built-in gas range.

Then, the venturi part is fixed to the upper plate 80 using a separate installation aid 90, and then the burner body 40 and the burner head 50 are sequentially installed above the venturi part, and finally the burner head The temperature sensor 60 is attached to the through hole 51 of 50 to complete the installation of the built-in gas burner of the present invention.

Such a built-in gas burner opens a gas valve and ejects gas (fuel) through the nozzle 71 to the venturi tube part, and external primary air is blown by the ejection pressure to the medium diameter tubular body 21 and the large diameter tubular body 31. While being sucked into the flow path between the mixture and the gas is converted into a mixed gas, the mixed gas is continuously ejected upward along the flow path between the small diameter tube body 12 and the medium diameter tube body 21 through the venturi tube portion and burner body ( 40) After hitting the bottom of the burner head 50 is covered on the upper surface radially spread toward the salt hole (not shown) provided in the rim of the burner body 40 passes through the salt hole of the burner body 40 The moment it is ejected to the outside, the spark is sparked by the spark plug (not shown).

As described above, the built-in gas burner according to an embodiment of the present invention allows a venturi structure and a nozzle for fuel supply to be installed at the edge of the burner and a temperature sensor as an overheating prevention device to be installed at the center of the burner. By inhaling air from the burner, the burner is not affected by the internal pressure of the installed product, but the temperature sensor at the center of the burner can accurately sense the overheating information of the heated object heated by the burner. It is possible to prevent, of course, to increase the degree of completeness of the cooking to improve the reliability of the product, and also to increase the primary air suction force by the horizontal venturi as well as to connect the fuel pipe and the nozzle accordingly Work is also easy.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It should be understood that all of the techniques that can be easily changed and used by those skilled in the art are included in the technical scope of the present invention.

3: cup body 3a: nozzle
5: burner body 5a: mixing tube
5b: flame study 7: burner head
10: venturi body 11: lower plate
12: small diameter body 13: venturi lower pipe part
14: primary air lower casing 15: drain
16: lead line passage 17: uplink guide
20: Venturi head 21: medium diameter body
22: Venturi commercial department 30: Venturi cover
31: large diameter body 32: primary air upper casing
40: burner body 50: burner head
51: through hole 52: close contact
60: temperature sensor 70: fuel pipe
71: nozzle 80: top plate
90: installation assistant

Claims (9)

A small diameter tubular body in which the lower end is integrally connected to the bottom surface and the upper end thereof extends upward, a venturi lower tube part surrounding the lower outer periphery of the small diameter tubular body and open upward; A venturi body having a lower air casing;
A venturi head having a mid diameter tubular body covering the outer circumferential portion of the venturi body at a predetermined distance from the venturi body, and a venturi upper corrugated portion extending from the lower end of the mid diameter tubular body to one side to cover the venturi lower tube part;
A large diameter body covering the outer circumferential part of the venturi head at a predetermined distance from the middle diameter body, and a primary air upper casing extending from the lower end of the large diameter body to one side to cover the primary air lower casing; Venturi cover having;
A burner body which covers a passage between the small diameter tubular body and the medium diameter tubular body and receives a mixed gas;
A burner head which is inserted into the open upper end of the small diameter tubular body and covers the upper surface of the burner body and has a through hole in the center thereof;
A temperature sensor mounted in a through hole of the burner head and having a lower end extending into a small diameter tube; And
A fuel pipe communicatively coupled to one side of the primary air casing, which is formed in the primary air and in the lower casing, to supply external fuel to the venturi pipe section consisting of a venturi top and a lower pipe section;
Built-in gas burner comprising a. The method of claim 1,
Built-in gas burner, characterized in that the external primary air is sucked through the flow path between the medium diameter tube of the venturi head and the large diameter tube of the venturi cover. The method of claim 1,
And a nozzle is further provided at an end portion of the fuel pipe communicating with the inside of the primary air casing, and the nozzle is disposed on the same line as the inlet of the venturi tube. The method of claim 3,
The large diameter tubular body has its rear end close to the outer circumferential surface of the medium diameter tubular body, and a gap is formed only between the distal end portion and the outer peripheral surface of the distal end of the medium diameter tubular body so that primary air is concentrated and supplied to the distal end of the venturi tube. Built-in gas burner. The method of claim 1,
Built-in gas burner, characterized in that the one side further provided with an upward guide portion for guiding the mixed gas supplied into the venturi tube portion upward. The method of claim 5,
The upward guide portion is built-in gas burner, characterized in that the inclined upward structure while surrounding the outer peripheral surface in a state spaced apart from the outer peripheral surface of the small diameter tubular body at the rear end of the venturi tube. The method of claim 1,
Built-in gas burner is provided with a lower plate for blocking the lower end of the small diameter tubular body of the venturi body, a drain port for discharging moisture such as broth downward on one side of the lower plate. The method of claim 1,
Built-in gas burner, characterized in that the lead wire passage is further provided to pass the lead wire of the temperature sensor on one side of the venturi body. The method of claim 1,
Built-in gas burner, characterized in that further provided in close contact with the inner circumferential surface of the small diameter tubular body extending downward to the bottom of the through-hole rim of the burner head.

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