KR950013042B1 - Gas burner - Google Patents

Abstract

The cooking burner has a positioning means for mounting the burner head on the burner body. The burner has a hollow burner body(2) having a head(21) with upper opening(24), concave sections(25, 26) on the outer periphery wall; burner cap(3) for covering the opening(24) and forming the flame holes, putting on the head(21); positioning means(7) having the notch section(71) on the outer periphery of the opening(24) engaged with the protrusion(72) projected from the burner cap(3). The upper peripheral surface(4a) of the opening is formed in a reverse-conical shape and the protrusion line(36) of the burner cap(3) is slanted from the upper surface(4a). The distance(M) between the center of the head(21) and the inner edge of the concave section(25) is longer than the distance(L) between the center of the burner cap(3) and center edge(74) of the protrusion(72).

Description

Goro burner

1 is a perspective view of the assembly structure of the gon furnace burner of the present invention.

2 is a perspective view of the gourd burner of the present invention.

3 is a plan view of the burner body of the goro burner of the present invention.

4 is a cross-sectional view of the governing burner of the present invention.

5 is a cross-sectional view of the go-ro burner with the burner cap incorrectly assembled.

* Explanation of symbols for main parts of the drawings

1: burner body 2: burner body

3: burner cap 4: outer circumference

7: Positioning means 21: Burner body head

22: body part of burner body 24: top opening of burner body

25, 26: recess 36: protrusion

4a: outer circumferential surface 71: cutout

72: projection S: ignition electrode

T: thermocouple

The present invention relates to a burner body and a positioning means of a burner head in a go-ro burner provided with a burner head on the burner body.

The gas burner used in the furnace is a burner body having an upper open hole and having an annular or cylindrical head portion, and a radiator which has a slit and abuts the outer circumferential upper surface of the upper open hole on its lower surface. It consists of the burner cap in which the protrusion row | route of the direction was formed. The burner cap is mounted coaxially to the head of the burner body to cover the upper opening and to form a row of outer circumferential flame holes by the grooves of each protrusion.

In addition, the outer peripheral flame hole is inclined upward and the flame is directed upward, and in order to increase the flame density and improve the heating effect, the outer peripheral upper surface surrounding the upper opening and the upper peripheral surface contacting the upper peripheral edge are formed. The go-ro burner which used the lower end surface of the said row of stones as an inverted conical surface is utilized.

The outer periphery side wall of the burner body is formed with a recess cut out in the vertical direction. The recess is covered by a part of the burner cap, and the ignition electrode of the ignition device and a thermocouple as a misfire sensor are mounted. Accordingly, the ignition electrode and the like are prevented from adhering to the soup falling from the cooking pot placed on the upper side.

Since the ignition electrode forms a flame discharge cap between the ground electrodes protruding from the lower surface of the burner cap, and the lower surface of the burner cap has a dedicated protrusion corresponding to the recessed portion, It is necessary to set the position of the burner head correctly. Therefore, a cutout portion formed at the outer periphery of the upper opening of the burner body and a positioning means consisting of protrusions protruding from the lower surface of the burner cap and engaging with the cutout portion are formed.

In the conventional go-ro burner, the projections formed on the lower surface of the burner cap, which is the positioning means of the burner head, have a circumferential shape or a square shape, and the central axis end of the projections is the innermost portion of the concave portion formed on the outer peripheral side wall of the burner body. It is formed outside the end. Therefore, when the user sets the burner cap to the burner body, even if the projection falls into the recess or the center end of the projection is formed inward from the end of the innermost portion, the outer peripheral upper surface of the burner body is Since it is an inverted cone surface, when the outer peripheral side end of the projection touches the edge of the concave portion that is lower than the height of the contact with the outer circumferential upper surface at a position other than the concave portion, once it falls down, it is normally set at first sight. It is perceived as being done. As a result, the user may attach the burner cap to the commutation position and ignite the go-ro burner.The user may think that a malfunction has occurred due to the formation of an abnormal flame because the normal outer heat of the flame hole is not formed. Has been occurring.

SUMMARY OF THE INVENTION An object of the present invention is to provide a gondola burner having a positioning means which can reliably prevent a misalignment of a set position when the burner cap is set on a burner body having a recess for mounting an ignition electrode or the like on the outer circumferential side wall. have.

The go-ro burner of the present invention has a hollow burner body having an upper surface open hole and a head portion having a recessed portion formed on the outer circumferential sidewall, and a protrusion column is formed on the lower surface corresponding to the upper peripheral surface of the burner body. A burner cap which is placed concentrically on the part to cover the upper surface of the open hole and at the same time forms an outer circumferential flame hole row, and a cutout portion formed on the outer circumferential surface of the upper surface of the burner body; In the go-ro burner provided with a positioning means consisting of a projection which is projected on the lower surface and engaged with the cutout, the outer peripheral upper surface of the open hole of the upper surface of the burner body has a reverse conical surface shape, the stone of the burner cap The heat regulation is inclined in the shape of the reverse conical surface corresponding to the upper peripheral surface of the outer periphery, the projection is flat in the radial direction and the lower The surface is set in the shape of an inverted conical surface having approximately the same inclination corresponding to the outer circumferential upper surface, and the distance from the center of the head of the burner body to the innermost end of the recess is the lower end of the projection from the center of the burner cap. It is set larger than the distance to the edge part of the center side of a surface.

The burner cap of the present invention can be safely installed in the burner body because the burner cap falls downward only when the positioning means is engaged with the firebox, and in other cases, the burner cap is lifted up from the burner body and is unstable to be installed. Becomes Therefore, the user can immediately recognize that the burner cap is incorrectly set. As a result, it is possible to prevent the illusion that a failure has occurred and to improve safety.

This invention is demonstrated based on the Example shown to FIG. 1 thru | or FIG.

The go-ro burner of the present invention includes a burner body 1, an ignition electrode S for ignition mounted on the burner body 1, and a thermocouple T for misfire detection. The burner body 1 is formed so as to set the burner cap 3 on the burner body 2.

The burner body 2 consists of an annular head portion 21 and a body portion 22 extending downwardly and laterally from a part of the head portion 21. The upper surface of the head portion 21 is formed with an annular upper surface open hole 24 having a missing portion 23.

The upper surface of the outer circumferential edge 4 surrounding the upper surface open hole 24 is an outer circumferential upper surface 4a having a reverse conical surface shape.

The head portion 21 has an annular shape as in the present embodiment in order to form a central flame hole described later in a large gourd burner, but in a small burner it has a disc shape.

On the outer peripheral side of the said missing part 24 of the head part 21, the recessed part 25 and the recessed part 26 of the shape which cut out the said head part 21 in the up-down direction are formed in succession.

The burner cap 3 is mounted on the head 21 of the burner body 2 to cover the upper opening 24 and to cover the upper sides of the recesses 25 and 26. 31) and a cylindrical leg portion 32 protruding downward from the center of the hatch portion 31 and fitted into the annular head portion 21.

On the lower surface of the hatshade 31, an annular ridge 33 having a predetermined width in the radial direction on the same circumference which has entered 3 mm inward from the outer circumferential end, and the recesses 25 and 26 of the burner body 2; A concave ridge 34.35 having a predetermined width in the radial direction is continuously formed at a position along the outer circumferential edge 4) of the c).

A small protrusion-shaped ground electrode 30 for ignition is protruded from the bottom surface of the shade portion 31 covering the concave portion 25.

On the lower end surfaces of the annular ridges 33 and the concave ridges 34 and 35, the projections 36 inclined in the shape of a reverse conical surface and formed in the radial direction are formed in rows at equal intervals.

In addition, the lower end surface of the protrusion 36 is an inverted conical surface corresponding to the inverted conical surface of the outer peripheral upper surface 4a, and contacts the outer peripheral upper surface 4a and the upper surface of the part 23 of the missing portion 23. 41, the outer periphery flame hole row 10 which forms the small flame hole 37 and the large flame hole 38 is formed.

The flame holes 37 and 38 are functionally arranged in the outer periphery of the outer circumference of the hatch 31 to form a ring of outer circumferential flame holes for heating, the spark holes for ignition directed into the recesses 25, and the recesses 26. It is classified as a spark hole for misfire detection.

In the present embodiment, the central flame hole burner 5 having a small diameter protrudes above the leg portion 32 of the burner cap 3. The interior of the burner body 2 is a mixed gas chamber of fuel gas and primary air for fuel, and a fuel gas injection nozzle and primary air supply port (both not shown) are provided at the front end 11 of the body portion 22. Formed.

When using the goro burner, the fuel gas injected from the injection nozzle is mixed with the air supplied from the primary air supply port, is fed into the head 21 as a mixer, and is taken out through the flame holes 37 and 38. A part of the mixer is fed to the central flame hole burner 5.

The ignition electrode S is fastened to the recess 25, and the thermocouple T is fastened to the recess 26 by the fastening mechanism 60.

In the burner body 2 and the burner cap 3, the concave portions 25 and 26 and the concave ridges 34 and 35 for precisely aligning the setting positions of the ignition electrode S and the ground electrode 30 are precisely positioned. Positioning means 7 for matching are formed.

The positioning means 7 includes a U-shaped cutout 7l formed in the outer circumferential edge 4 of the upper surface open hole 24 of the burner body 2 and the lower surface of the burner cap 3. It consists of a projection 72 protruding in and engaging with the cutout 71 having a radially flat oval cross section. The cutout 71 is formed at a position rotated 180 degrees with the concave portion 25, and the protrusion 72 is formed at a position rotated 180 degrees with the ground electrode 30.

The positioning means 7 is a projection formed in the burner cap 3 when the recesses 25 and 26 are present on the outer circumferential side wall of the head portion 2l of the burner body 2 as in the above-described goro burner. The burner cap 3 rotates 180 degrees at the commutation position, when the central end 74 of the lower end face 73 of the 72 is formed outside the end of the innermost portions of the recesses 25 and 26. When the burner body 2 is set to the burner body 2, the burner cap 3 falls down and is set.

Moreover, even if the center side edge part 74 of the protrusion 72 is formed inward from the end part which the recessed parts 25 and 26 become the innermost side, the upper surface 4a of the outer peripheral surface of the burner body 2 turns into a reverse conical surface. Since the outer circumferential side end portion of the projection 72 is lower than the height of the contact with the outer circumferential upper surface 4a in addition to the concave portions 25 and 26, the end portion becomes the innermost portion of the concave portions 25 and 26. If the protrusion 72 abuts on the edge of the edge, it will fall downward by the difference in height.

Therefore, the user does not realize that the burner cap 3 is set on the contrary because it is mistaken that the burner cap 3 is set at the commutation position. As a result, when the ignition operation is performed, a normal outer peripheral flame hole heat is not formed, and an abnormal flame is formed, which is mistaken for a failure, and abnormal combustion may occur.

In this invention, as shown in FIG. 4, the distance L from the center of the burner cap 3 to the center side edge part 74 of the lower end surface 73 of the projection 72 is made into the said burner body 2 The lower end surface 73 of the protrusion 72 is set smaller than the distance M from the center of the head 21 of the head 21 to the innermost end of the recess 25 and the recess 26. ) Was set to an inverted conical surface at approximately the same slope as the inverted conical surface of the outer peripheral wall upper surface 4a.

Therefore, as shown in FIG. 5, when the burner cap 3 is set to the position rotated 180 degrees from the commutation position, the projection 72 of the burner cap 3 is recessed in the burner body 2 ( It is in an excited state without falling to the height of the edges of the recesses 25 and 26 in the 25 and 26. As a result, the user can reliably recognize that the set of burner caps 3 is inappropriate.

Also, when the burner cap 3 is in a position other than the engagement position of the positioning means 7, the burner cap 3 is excited without falling into the burner body 2 as described above. It was immediately noticed that it was not set in the normal position.

Further, by making the projection 72 an elliptical cross section flat in the radial direction, there is an advantage that the degree of the obstacle when forming the outer circumferential flame hole row 10 can be reduced. Moreover, by making the lower end surface 73 of the projection 72 into the inclined surface which protrudes radially according to the inclination of the outer peripheral upper surface 4a, the lower surface 73 and the outer peripheral upper surface 4a can rotate smoothly. Therefore, when the burner cap 3 is provided in the position other than the engagement position of the positioning means 7, it can set to a normal position smoothly.

In addition, the notch 71 is not limited to what is formed in the position which rotated 180 degree with respect to the recessed part 25, Any angle may be sufficient as it is not the same position. At this time, the relationship between the projection 72 and the ground electrode 30 is set to the corresponding angle as described above.

Claims (1)

A hollow burner body 2 having an upper surface open hole 24 and a head portion 21 having recesses 25 and 26 formed on an outer circumferential side wall thereof and a lower surface corresponding to an outer circumferential upper surface 4a. Burner caps having a row of protrusions 36 formed thereon and placed concentrically on the head 21 of the burner body 2 to cover the upper opening 24 and to form a row of outer flame holes ( 3) and a cutout portion 71 formed at the outer circumference of the upper surface open hole 24 of the burner body 2 and protruded from the lower surface of the burner cap 3, and the cutout portion 71 is formed. In the go-low burner provided with the positioning means (7) which consists of the projection (72) which engages, the outer periphery upper surface (4a) of the upper opening (24) of the burner body (2) has a reverse conical surface shape. The row of protrusions 36 of the burner cap 3 are inclined in the shape of a reverse conical surface corresponding to the outer peripheral upper surface 4a. 72 is set in a radially flat shape and has a lower conical surface 73 having an inverted conical surface shape having substantially the same inclination corresponding to the outer peripheral surface 4a, and the head portion 21 of the burner body 2. From the center of the burner cap 3 to the center end 74 of the bottom surface 73 of the projection 72 from the center of the burner cap 3 to the innermost end of the recess 25. Gon burner characterized in that it is set larger than the distance (L).