JP2005188897A - Burner device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a burner device for improving combustion efficiency and reducing a size and weight. <P>SOLUTION: An equalizing space 22 communicating with a mixed gas flow channel 21 and a flow control means 26 for partitioning a flame hole 23 into a plurality of flame hole slits 24 are structured by combining a first burner half 17, a second burner half 18, and an inner burner ring member 19. Mixed gas is blown out at approximately equal pressure at a predetermined angle from the respective flame hole slits 24 of equal opening lengths into a combustion space 14, and burnt as swirl flame. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  More particularly, the present invention relates to a burner apparatus suitable for use in a so-called cassette stove that is loaded with a gas cylinder and placed on a table or the like.

  Since the cassette stove does not require gas piping facilities and can be easily carried to an appropriate place, it is widely used not only for general households but also for business use such as restaurants and outdoors. The cassette stove generally has an overall box shape including a combustion section and a gas cylinder loading section disposed adjacent to the combustion section, and a soup receiving plate or five virtues are provided in the combustion section (for example, Patent Document 1). reference).

  By the way, the cassette stove is provided with the burner apparatus which burns the mixed gas which mixed fuel gas and air similarly to the gas table using city gas or propane gas. In the cassette stove, the fuel gas injected from the gas cylinder and controlled in the supply state by the governor mechanism is mixed with an appropriate amount of air in the mixing tube, and this mixed gas is supplied to the burner device and burned. The cassette stove is provided with a burner device, whereby the fuel gas is efficiently burned, and the consumption efficiency is improved with a high heat quantity.

  The applicant previously described in Patent Document 2 that the mixed gas flows as a swirl flow at a substantially uniform flow velocity over the entire area in the annular gas flow path formed in the burner body, and from each flame hole to the flame. Provided a cassette-type stove device that swirls into the combustion space. In such a cassette stove device, combustion is achieved by efficiently heating the central part of the heated object placed on the virtues and suppressing the occurrence of incomplete combustion over the entire circumference to generate a stable flame. It has gained popularity due to its improved efficiency and lower consumption.

Japanese Utility Model Publication No. 60-122657 JP 2001-349515 A

  By the way, in the burner device, since the flames blow out toward the center of the combustion space portion from the respective flame holes formed in an annular arrangement in the burner body, the front ends of the flames collide with each other and a part of each A phenomenon occurs in which the flame hole is directed downward with respect to the flame hole arrangement surface. In the burner apparatus, there is a problem that due to this phenomenon, the flame toward the heated object is reduced and the combustion efficiency is lowered.

  In the burner device, for example, by making the combustion space portion large in diameter, it is possible to suppress the occurrence of the above-described collision of the front end of the flame in the combustion space portion and to improve the combustion efficiency. However, in such a burner apparatus, since the burner main body becomes large by making the combustion space portion large in diameter, the entire cassette stove apparatus is enlarged. Further, in such a burner device, for example, when a small object to be heated is used, the flame is not concentrated on the central portion thereof, and thus problems such as a decrease in heating efficiency and variations in heating position occur.

  On the other hand, the burner device is generally configured by combining a die burner upper burner half and a lower burner half divided into upper and lower burner bodies. Such a die-cast burner apparatus is relatively expensive, heavy, and has a large amount of change in shape due to a temperature rise accompanying use.

  Accordingly, the present invention has been proposed for the purpose of providing a burner device that is further improved in combustion efficiency and reduced in size and weight.

  The burner device according to the present invention that achieves the above-mentioned object comprises a first burner half, a second burner half, an internal burner ring member, and a flow control means for controlling the flow of the mixed gas blown from the flame port. Prepare. The first burner half has a ceiling part in which an opening part constituting an upper part of a flame opening which is annularly opened in the combustion space part is formed, and an outer peripheral wall formed on the outer peripheral edge of the ceiling part over the entire circumference And a mixed gas supply pipe half formed to project in the tangential direction on the outer peripheral wall. The second burner half is integrally formed with a cylindrical secondary air intake cylinder that is opposed to the opening of the first burner half and supplies secondary air to the combustion space. The outer peripheral wall part formed in the outer periphery over the perimeter, and the mixed gas supply pipe half part formed in this outer peripheral wall part protruding in the tangential direction are comprised. The inner burner member has an upper opening that is substantially the same diameter as the opening of the first burner half and forms a lower part of the flame opening, and an outer periphery of the first burner half around the upper opening. A partition flange portion formed with a plurality of gas supply holes formed to have substantially the same diameter as the wall portion and equally spaced from each other in the circumferential direction, and a lower opening combined with the second burner half Part. The mixed gas flow control means is provided between the inner surface of the ceiling portion along the opening of the first burner half and the inner surface of the partition flange portion along the opening of the internal burner ring member. A plurality of arc-shaped flaming slits having substantially the same length in the direction are divided and the mixed gas is blown out from each of the flaming slits into the combustion space portion at a predetermined angle.

  In the burner device, the first burner half and the second burner half are joined together by abutting the opposed outer peripheral wall and the mixed gas supply pipe half so as to form an annular mixture inside. A gas flow path is provided, and an annular burner main body is formed by connecting a mixed gas supply pipe portion provided therein with a mixed gas supply path communicating in a tangential direction with respect to the mixed gas flow path. . In the burner device, the inner burner ring member is combined with the second burner half so that the partition flange portion of the inner burner member faces the ceiling of the first burner half. An annular flame opening is formed between the opening of the inner burner and the opening of the internal burnering member so as to open over the entire circumference of the combustion space. In the burner device, the partition flange portion of the internal burner member constitutes an annular pressure equalizing space portion that communicates with the mixed gas flow path through each gas supply hole with the first burner half body.

  In the burner apparatus, a mixed gas obtained by mixing a certain amount of primary air with a fuel gas is supplied into a mixed gas supply pipe, and this mixed gas is supplied from the mixed gas supply path into the mixed gas flow path in a tangential direction. . In the burner device, the mixed gas flows as a swirling flow in the mixed gas flow path, and flows into the pressure equalizing space portion from the mixed gas flow path through the gas supply holes provided in the internal burner ring member. By this, it flows with the turning habit in this pressure equalization space part.

  In the burner device, the pressure of the mixed gas is equalized over the entire area in the circumferential direction by being guided into the pressure equalizing space section separated from the mixed gas flow path by the internal burner ring member. In the burner device, the mixed gas is blown out into the combustion space portion with a uniform pressure from each flame slit formed by the flow control means having the same opening length. In the burner device, the mixed gas that flows with the swirling behavior also in the pressure equalizing space portion is blown out from each flame slit to the combustion space portion through the flow control means at a predetermined angle. In the burner device, the mixed gas that is equalized from each flame slit and blown at a predetermined angle generates an upward vortex flame with a shortened flame length toward the center in the combustion space. Then, the secondary air is efficiently sucked into the combustion space and burned in a stable state.

  In the burner device, the second burner half is formed by gradually raising the bottom surface part from the opening of the mixed gas supply pipe half part in the circumferential direction. An annular mixed gas passage having a cross-sectional area gradually reduced with respect to the flow direction of the mixed gas is formed inside the burner main body by combining each outer peripheral wall portion with the mixed gas supply pipe half body portion. Constitute.

  In the burner device, the mixed gas blown from the mixed gas supply passage flows in the mixed gas flow passage having a gradually reduced cross-sectional area, so that the flow velocity is maintained even at the front position in the flow direction. Therefore, in the burner device, the mixed gas flows as a swirling flow at a substantially uniform flow velocity throughout the mixed gas flow path, and is guided into the pressure equalizing space, thereby equalizing the mixed gas in the pressure equalizing space. Will be played in a more stable state.

  In the burner device, the flow control means is formed integrally with at least the ceiling portion of the first burner half and the inner peripheral edge of the partition flange portion of the internal burner ring member, and is abutted against the opposing surface of the other side. Consists of convex parts. According to the burner device, for example, it is possible to set various heat amount specifications of the cassette hob and the like, and to perform efficient combustion by a simple correspondence that appropriately sets the number and size of these convex portions. become.

  The burner device includes at least one or more annular separator members having an inner diameter that is substantially the same as the opening of the first burner half, and the separator member includes a ceiling portion of the first burner half and an inner burner ring member. It is provided between the partition flange portions. In the burner device, each flame opening slit is divided into two upper and lower layers over the entire circumference by the separator member, thereby forming a flame opening with a large opening area that maintains the pressure of the mixed gas blown into the combustion space. To improve combustion efficiency.

  The burner device is formed in the separator member in the vicinity of the inner peripheral portion and is formed with a plurality of convex portions at equal intervals in the circumferential direction, and each of these convex portions is a ceiling portion or an inner portion of the first burner half It is made to face | abut to the partition flange part of a burnering member, or the other separator member overlapped. In the burner device, each convex portion of the separator member is arranged along the flame opening, thereby constituting a flow control means for controlling the flow of the mixed gas blown out from the flame opening into the combustion space. In the burner device, the flow control means is provided in the separator member having a simpler shape so that the first burner half and the internal burner ring member can be simplified, and for example, there are various heat amount specifications of the cassette stove. Therefore, efficient combustion can be performed.

  A burner device according to the present invention that achieves the above-described object includes a first burner half, a second burner half, an internal burner ring member, and at least one separator member. The first burner half has a ceiling part in which an opening part constituting an upper part of a flame opening which is annularly opened in the combustion space part is formed, and an outer peripheral wall formed on the outer peripheral edge of the ceiling part over the entire circumference And a mixed gas supply pipe half formed to project in the tangential direction on the outer peripheral wall. The second burner half is integrally formed with a cylindrical secondary air intake cylinder that is opposed to the opening of the first burner half and supplies secondary air to the combustion space. The outer peripheral wall part formed in the outer periphery over the perimeter, and the mixed gas supply pipe half part formed in this outer peripheral wall part protruding in the tangential direction are comprised. The inner burner member has an upper opening that is substantially the same diameter as the opening of the first burner half and forms a lower part of the flame opening, and an outer periphery of the first burner half around the upper opening. A partition flange portion formed with a plurality of gas supply holes formed to have substantially the same diameter as the wall portion and equally spaced from each other in the circumferential direction, and a lower opening combined with the second burner half Part. The separator member is composed of an annular member having an opening whose inner diameter is substantially the same as the opening of the first burner half, and between the ceiling of the first burner half and the partition flange of the internal burner ring member. Are provided so as to divide each flame slit in the vertical direction over the entire circumference.

  In the burner device, at least the inner surface of the partition flange portion along the opening of the inner burner ring member and the main surface of the separator member facing the inner surface are abutted with each other, and the flame opening has a circumferential length. A mixed gas flow control unit is formed that divides the plurality of arc-shaped flame slits that are substantially equal to each other and blows the mixed gas from each of the flame slits into the combustion space at a predetermined angle.

  According to the burner device of the present invention configured as described above, the first burner half and the second burner half constituting the burner body are combined with the internal burner ring member to communicate with the mixed gas flow path. Since the pressure space portion and the flow control means for dividing the flame port into a plurality of flame slits are configured, the mixed gas is discharged from the flame slits having the same opening length to the combustion space with substantially the same pressure. A predetermined angle is given in the part and blown out to form a swirling flame and burn. According to the burner device of the present invention, the mixed gas is combusted in a stable state while suppressing the occurrence of incomplete combustion over the entire circumference of the burner body, thereby improving the combustion efficiency. According to the burner device according to the present invention, the mixed gas burns as a swirling flame in the combustion space portion, so that even if the burner body has a reduced diameter, the front ends of the flame collide and face downward. The phenomenon is suppressed, and the flame is efficiently applied to the center of the object to be heated. According to the burner device according to the present invention, high dimensional accuracy is not required for the members constituting the flame opening, and variation in the opening size is reduced, thereby reducing costs and improving productivity to produce with high accuracy. Is done. According to the burner device of the present invention, the combustion efficiency can be improved and the device can be reduced in size and weight.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A burner device 1 shown as an embodiment is provided in a cassette cooker 2 as shown in FIG. The cassette stove 2 has an overall box shape and is provided with a gas cylinder loading section 4 on one side of which a gas cylinder 3 is loaded, and a combustion section 5 is provided adjacent to the gas cylinder loading section 4 via a partition plate. Yes. The cassette stove 2 ignites a cylinder chucking mechanism 7, a governor mechanism 8, or a spark plug 9 provided in the combustion unit 5, which are not described in detail in a gas cylinder loading unit 4 that is opened and closed by a cover member 6, and supplies fuel gas. A knob 10 for adjusting the amount is provided.

  The cassette stove 2 is provided with an operation lever 13 for driving a burner device 1, a spark plug 9, or a cylinder chucking mechanism 7, which will be described in detail later, as well as a juice receiving plate 11 and five virtues 12 assembled to the combustion unit 5. Yes. The soup receiving plate 11 is provided with a circular opening portion 11a facing the combustion space portion 14 to be described later with the burner device 1 facing outward at the center. The spark plug 9 protrudes into the combustion space 14.

  As shown in FIGS. 2 to 4, the burner device 1 is formed by integrally forming a mixed gas supply pipe portion 16 projecting in a tangential direction with respect to the annular burner main body portion 15, and omits the details. 2 is installed in a horizontal state on a chassis (not shown) provided in the combustion section 5. In the burner device 1, the inner circumferential space in the height direction of the burner body 15 forms a cylindrical combustion space 14, and this combustion space 14 faces the opening 11 a as shown in FIG. The part is covered with the juice receiving plate 11. In the burner device 1, the mixed gas supply pipe section 16 is connected to a gas supply pipe (not shown) drawn from the governor mechanism 8 in the gas cylinder loading section 4 via a primary air suction damper.

  Although the details are omitted, the primary air suction damper takes in the primary air into the pipe by the negative pressure generated by the flow rate of the fuel gas and generates a mixed gas. In the burner device 1, the mixed gas supplied into the mixed gas supply pipe section 16 through the primary air suction damper is supplied into the burner main body section 15 through the mixed gas supply pipe section 16. The burner device 1 burns the mixed gas blown out from the burner body 15 into the combustion space 14 by generating an eddy flame in the combustion space 14 upward.

  As shown in FIGS. 2 and 3, the burner device 1 includes a first burner half 17 and a second burner half 18 which will be described later in detail, with the burner body 15 and the mixed gas supply pipe 16 divided vertically. Are combined by abutting the outer peripheral portions of each other over the entire circumference. The burner device 1 includes an internal burner ring member 19 and a separator member 20 that are combined inside a burner main body portion 15 including the first burner half body 17 and the second burner half body 18. The burner device 1 is used in a conventional general burner device by forming these constituent members 17 to 20 into a shape to be described later by pressing a steel plate or a stainless steel plate subjected to a rust prevention treatment, for example. Compared to die-cast parts, it is formed with lower cost, lighter weight, or higher heat resistance.

  The burner device 1 has an overall annular shape in which the burner body portion 15 has a combustion space portion 14 as an internal space portion penetrating in the center portion in the height direction. An annular mixed gas passage 21 and a pressure equalizing space portion 22, which will be described in detail later, are divided into upper and lower portions by a ring member 19. In the burner device 1, an annular flame port 23 is formed between the first burner half 17 and the internal burner ring member 19 to open the pressure equalizing space 22 to the combustion space 14 over the entire circumference. The

  The burner device 1 is divided into a plurality of arc-shaped flame mouth slits 24a to 24f (hereinafter collectively referred to as flame mouth slits 24) each having an opening length equal to each other, as will be described in detail later. Become. As shown in FIG. 4, the burner device 1 has a flame opening 23 that is inserted between the first burner half 17 and the internal burner ring member 19, so that the upper flame opening 23 a It is divided into a lower flame outlet 23b.

  In the burner device 1, as shown in FIG. 3, the mixed gas flow path 21 is formed into an annular flow path inside the burner body 15 by the first burner half 17, the second burner half 18, and the internal burner ring member 19. Configured as The mixed gas flow path 21 allows the mixed gas supplied from the mixed gas supply pipe section 16 to flow while turning counterclockwise in FIG. The mixed gas flow path 21 has a structure in which the cross-sectional area is gradually narrowed from the communication portion 21a with the mixed gas supply path 25 toward the mixed gas flow direction by the structure of the second burner half 18 described later. The flow rate of the mixed gas is maintained even at the front position in the flow direction. In the burner device 1, the mixed gas is allowed to flow as a swirling flow at a substantially uniform flow rate over the entire area in the mixed gas flow path 21, and is once blown out directly from the flame port 23 without being directly blown into the pressure equalizing space portion. Guide into 22.

  In the burner device 1, as shown in FIGS. 3 and 4, the pressure equalizing space 22 is configured as an annular space by the first burner half 17 and the internal burner ring member 19. The pressure equalizing space portion 22 is communicated with the mixed gas flow channel 21 over the entire circumference via a plurality of gas supply holes 43, which will be described later in detail, formed in the internal burner member 19. The mixed gas flows from inside 21. In the burner device 1, the mixed gas flow path 21 is caused to change somewhat in the mixed gas flow path 21 even when the flow rate is maintained in the flow direction described above, and the mixed gas flowing into the pressure equalizing space 22 is guided. Then, the pressure is equalized in a stable state over the entire circumference so as to blow out from the flame opening 23.

  In the burner device 1, as shown in FIG. 3, the first burner half 17, the internal burner ring member 19, and the separator member 20 constitute a flame opening 23 formed of an annular opening. As described above, the flame outlet 23 is divided into upper and lower flame outlets 23a and 23b and a plurality of flow control units 26a to 26f (hereinafter referred to as flows) arranged along the opening edge of the combustion space portion 14. And is divided into a plurality of arc-shaped flame opening slits 24). As will be described in detail later, each flow control unit 26 is configured by a portion formed along the first burner half 17, the internal burner ring member 19, and the flame opening 23 of the separator member 20, as shown in FIG. 2. The flame opening 23 is divided into a plurality of flame opening slits 24 each having the same opening length in the circumferential direction.

  In the burner device 1, as described above, the mixed gas introduced from the mixed gas flow path 21 into the pressure equalizing space 22 is equalized in pressure and the opening length is made equal over the entire circumference. By blowing out from the flame slit 24 into the combustion space portion 14, the mixed gas burns in a stable state in the combustion space portion 14. In the burner apparatus 1, each component member forms the above-described flame opening 23 without requiring a very high dimensional accuracy, and an operation for adjusting the variation in opening accuracy after assembly is not required, thereby improving productivity. Is planned.

  In the burner device 1, the mixed gas that flows while rotating in the pressure equalization space portion 22 strikes each flow control unit 26 provided at equal intervals along the flame port 23, thereby causing a change in the flow velocity. In the burner device 1, for example, when the mixed gas hits the first flow control unit 26 a and flows to the second flow control unit 26 b, a negative pressure is generated at a location where the flow path is narrowed and passes through the first flow control unit 26 a. The pressure decreases. In the burner device 1, the pressure gradually increases as the mixed gas flows from the first flow control unit 26a toward the second flow control unit 26b. In the burner device 1, the amount of the mixed gas blown out from the arcuate flame slit 24a is small on the downstream side and large on the upstream side.

  Therefore, in the burner device 1, as shown in FIG. 5, the flame is angled from each flame slit 24 in the combustion space portion 14 and blows out along the inner peripheral wall of the flame mouth 23. The flame length in the center direction of the combustion space portion 14 is shortened. Further, in the burner device 1, the flame opening 23 is opened upward in the combustion space portion 14, so that it burns as an upward vortex flame as shown in FIG. 6, and the secondary air intake cylinder portion 36 is burned. The secondary air is efficiently sucked into the combustion space portion 14 from the lower opening 36b, and combustion is efficiently performed in a stable state.

  In the burner device 1, as shown in FIG. 5, the flame blown out from each flame slit 24 has a small flame length in the vicinity of each flow control unit 26, so that the flame length is small and the pressure is large at the front end side in the traveling direction. Increases flame length. In the burner device 1, the mixed gas burns as an eddy current flame, so that the flame tip near the flow control unit 26 with a short flame length overlaps and complements the front end of the flame in the traveling direction, Combustion is performed with a flame having a substantially uniform flame length over the entire circumference.

  In the burner device 1, as described above, the flame port 23 is divided into the upper flame port 23 a and the lower flame port 23 b over the entire circumference by the separator member 20, and a large opening area is maintained with respect to the combustion space portion 14. Thus, a large amount of mixed gas can be blown out. Further, in the burner device 1, the opening size of each flame slit 24 is narrowed by the separator member 20, and the blowout pressure of the mixed gas blown out from each flame slit 24 into the combustion space portion 14. Is held. Therefore, in the burner device 1, a large amount of mixed gas is stably blown out from each flame slit 24 into the combustion space portion 14 and swirls in the combustion space portion 14 as shown in FIG. A flame is generated to improve combustion efficiency.

  In the burner apparatus 1, the mixed gas supply pipe section 16 is formed with a large diameter at the tip and constitutes a connection section with a connection pipe on the primary air suction damper side. In the burner device 1, a mixed gas supply path 25 that communicates with the mixed gas flow path 21 of the burner main body section 15 is formed in the mixed gas supply pipe section 16 at the communication section 21 a. As will be described in detail later, the burner device 1 is formed such that a mixed gas supply pipe portion 16 is integrally projected in a tangential direction on an annular burner main body portion 15 so that the tangential direction with respect to the annular mixed gas channel 21 A mixed gas supply path 25 is communicated with the gas supply path 25.

  In the burner device 1, the mixed gas supply pipe portion 16 is connected to the connecting pipe of the primary air suction damper, and the mixed gas flows from the mixed gas supply passage 25 into the mixed gas passage 21 of the burner main body portion 15 in the tangential direction. Infused from. In the burner device 1, the mixed gas blown from the mixed gas supply path 25 flows in the mixed gas flow path 21 as a swirling flow in the counterclockwise direction in FIG. 2, and from the mixed gas flow path 21 to the pressure equalization space portion 22. Supplied with. In the burner device 1, the mixed gas blown from the pressure equalization space portion 22 through each flame slit 24 generates an upward vortex flame in the combustion space portion 14 as shown in FIG. 6 as described above. Burn. In the burner device 1, the secondary air is sucked into the combustion space portion 14 from the bottom surface side of the second burner half 18 by the vortex flame, and efficient combustion is performed.

  As shown in FIG. 7, the first burner half body 17 is integrally formed with a ceiling portion 27 having a substantially annular outer shape that constitutes the upper half body portion of the burner main body portion 15, and along the outer peripheral edge of the ceiling portion 27. The outer peripheral wall portion 28 is formed upright, and a mixed gas supply pipe half portion 29 is formed integrally with the outer peripheral wall portion 28 so as to protrude in a tangential direction. In the first burner half body 17, a circular opening 30 is formed in the central region of the ceiling portion 27. The first burner half 17 can be formed with high accuracy and at low cost by using a press die having a relatively simple structure because each component is constituted by a bent portion in the vertical direction.

  The first burner half body 17 is formed so that the peripheral region surrounding the opening 30 of the ceiling 27 is inclined downward from the opening 30 toward the outer peripheral side, whereby the first burner half 17 is formed with respect to the combustion space 14. A flame opening 23 is formed that opens upward. The first burner half 17 includes a plurality of convex portions 31 a to 31 f (hereinafter, convex portions 31) that are positioned at equal intervals in the circumferential direction along the opening edge of the opening portion 30 on the ceiling portion 27. Is generally formed by being pushed inward. In the first burner half body 17, a flange portion 32 is integrally formed at the distal end portion of the outer peripheral wall portion 28 over the entire area. Although not described in detail in the flange portion 32, positioning dowels and positioning holes for positioning are appropriately formed when combined with the second burner half 18 described later.

  In the first burner half body 17, the ceiling portion 27 and the outer peripheral wall portion 28 constitute an upper half portion of the burner body portion 15. The first burner half 17 forms an annular space portion in which the inner peripheral side and the bottom surface side are opened between the ceiling portion 27 and the outer peripheral wall portion 28, and this space is obtained by combining the above-described members. The parts are divided into upper and lower parts to constitute the mixed gas flow path 21 and the pressure equalizing space part 22. The first burner half 17 is configured such that the opening 30 constitutes an upper part of the flame opening 23 that opens annularly in the combustion space portion 14 described above, and each convex portion 31 is a separator as shown in FIGS. 3 and 4. It is abutted against the member 20 and constitutes the upper part of the flow control unit 26 that controls the flow of the mixed gas described above.

  The first burner half 17 has a mixed gas supply pipe half 29 formed in a substantially semicircular cross section, and communicates with the internal space formed by the ceiling 27 and the outer peripheral wall 28 on one end side of the internal space. In addition, the other end constitutes a connection portion with the gas supply pipe of the primary air suction damper. As shown in FIG. 7, the mixed gas supply pipe half 29 is configured such that the internal space is narrowed in the inner diameter of the midway portion to increase the flow rate of the mixed gas.

  The first burner half 17 configured as described above has its flange portion 32 abutted against a flange portion 37 on the second burner half 18 side described later, and its outer peripheral edge is folded inward over the entire area. By bending and caulking, the second burner half 18 is integrated. The first burner half 17 is also formed integrally with the mixed gas supply pipe half 29 by extending a flange 32 over the entire outer peripheral edge thereof. The above-mentioned mixed gas supply pipe part 16 is integrally configured by being abutted with the flange part 37 of the mixed gas supply pipe half part 35 on the burner half body 18 side and subjected to caulking.

  As shown in FIG. 8, the second burner half 18 is also integrally formed along the outer peripheral edge of the bottom surface 33 and a bottom surface 33 having a substantially annular outer shape that constitutes the lower half of the burner body 15. The outer peripheral wall portion 34 is formed to rise, and the mixed gas supply pipe half portion 35 is formed integrally with the outer peripheral wall portion 34 so as to protrude in a tangential direction. The second burner half 18 is integrally provided with a cylindrical secondary air intake tube portion 36 located at the center of the bottom surface portion 33. In the second burner half 18, a flange portion 37 is integrally formed at the distal end portion of the outer peripheral wall portion 34 over the entire area.

  The secondary air intake cylinder portion 36 has an outer diameter that is smaller than the inner diameter of the opening 30 of the first burner half 17 and a longer axis than the outer peripheral wall portion 34. In the state where the second burner half 18 is combined with the first burner half 17, the secondary air supply cylinder 36 has an upper opening 36 a concentric with the opening 30 on the first burner half 17 side. Is made up of. As shown in FIG. 3, the lower air opening 36 b of the secondary air intake cylinder portion 36 constitutes a lower portion of the combustion space portion 14 and constitutes a secondary air intake port.

  In the second burner half body 18, the bottom surface portion 33 and the outer peripheral wall portion 34 constitute a lower half body portion of the burner main body portion 15. The second burner half 18 forms an annular space having an open upper portion between the bottom 33, the outer peripheral wall 34 and the secondary air intake cylinder 36, and this space is the first burner half. The mixed gas flow path 21 is configured by being combined with the body 17. The second burner half 18 has a bottom surface portion 33 formed with substantially the same diameter as the ceiling portion 27 of the first burner half body 17, and a flange portion 37 extending over the entire flange portion 32 of the first burner half body 17. And is almost the same shape.

  As shown in FIG. 8, the second burner half 18 has a structure in which the bottom surface 33 is gradually raised from the communicating portion with the mixed gas supply pipe half 35 in the counterclockwise direction. The annular space part formed between the part 34 and the part 34 is formed so that the cross-sectional area gradually becomes smaller in diameter. The second burner half 18 has a structure in which the mixed gas passage 21 is gradually narrowed toward the flow direction of the mixed gas by the bottom surface portion 33 as described above, so that the flow velocity can be reduced even at the front position in the flow direction. To be retained.

  The second burner half 18 also has a mixed gas supply pipe half 35 formed in a substantially semicircular cross section, and communicates with one end side of the internal space with the internal space formed by the bottom surface 33 and the outer peripheral wall 34. In addition, the other end constitutes a connection portion with the gas supply pipe of the primary air suction damper. As shown in FIG. 8, the mixed gas supply pipe half part 35 has an inner space whose inner diameter is narrowed in the middle. In the second burner half 18, positioning holes and positioning dowels are appropriately formed so as to face the positioning dowels and positioning holes formed in the flange portion 32 on the first burner half 17 side.

  In the second burner half 18 configured as described above, the flange portion 37 is abutted with the flange portion 32 on the first burner half 17 side, and the outer peripheral edge thereof is caulked over the entire area. The first burner half 17 is integrated. The second burner half 18 is also formed integrally with the mixed gas supply pipe half 35 by extending a flange 37 over the entire outer peripheral edge. The flange 37 is formed integrally with the first burner half. The above-mentioned mixed gas supply pipe part 16 is integrally formed by being abutted with the flange part 32 of the mixed gas supply pipe half part 29 on the body 17 side and subjected to caulking. The second burner half 18 can also be formed with high accuracy and low cost by using a press die having a relatively simple structure since each part of the second burner half 18 is constituted by a vertically bent portion. is there.

  The second burner half 18 is combined with the internal burner ring member 19 in the secondary air intake cylinder 36, and after the separator member 20 is combined with the internal burner ring member 19, A combination process is performed. As shown in FIGS. 9 and 10, the internal burner member 19 is integrally formed around the entire circumference of the cylindrical main body cylinder portion 38 and the upper opening 38 a of the main body cylinder portion 38. It is comprised from the partition flange part 39 and the cylindrical fitting part 40 integrally connected by the lower opening part 38b of the main body cylinder part 38. As shown in FIG.

  The internal burner member 19 is formed with a taper so that the main body cylinder portion 38 gradually decreases in diameter from the upper opening 38a toward the lower opening 38b. The inner burner ring member 19 is formed such that the opening diameter of the upper opening 38 a of the main body 38 is substantially the same as the inner diameter of the opening 30 of the first burner half 17. The inner burnering member 19 is formed such that the opening diameter of the lower opening 38 b of the main body 38 is slightly larger than the outer diameter of the secondary air intake cylinder 36 of the second burner half 18.

  The inner burnering member 19 has a partition flange portion 39 formed so that the outer diameter thereof is substantially the same as the inner diameter of the outer peripheral wall portion 28 of the first burner half body 17. As shown in FIGS. 9 and 10, the partition flange portion 39 includes an annular flaming partition wall portion 39 a that gradually slopes downward from the upper opening 38 a toward the outer peripheral side, and the flaming partition wall portion 39 a and a vertical wall portion. It is configured by a partition wall 39c and an outer peripheral flange 39d that are stepped down and connected via 39b. The partition flange portion 39 is formed such that the inclination angle of the flaming partition wall portion 39 a is substantially equal to the inclination angle of the ceiling portion 27 surrounding the opening 30 of the first burner half body 17.

  The partition flange portion 39 is formed with a plurality of convex portions 41 a to 41 f (hereinafter, collectively referred to as convex portions 41) that are positioned at equal intervals in the circumferential direction and are pushed upward. . In addition, as shown in FIG. 9, the convex part 41 is formed with small convex parts 42a to 42c for positioning the separator member 20 every other piece. In the partition flange portion 39, a large number of gas supply holes 43a to 43n (hereinafter collectively referred to as gas supply holes 43) are located at equal intervals in the circumferential direction over the entire periphery of the partition wall portion 39c. Is formed.

  The inner burner ring member 19 has a fitting portion 40 having an outer diameter substantially equal to the inner diameter of the secondary air intake cylinder portion 36 of the second burner half 18, and a lower opening 38 b of the main body cylinder portion 38 through a stepped portion. It is connected to and integrally. The internal burner member 19 can also be formed with high accuracy and at low cost by using a press die having a relatively simple structure since each part of the internal burner member 19 is constituted by a vertically bent portion. .

  The internal burner ring member 19 configured as described above has the second burner half 18 by fitting the fitting part 40 into the upper opening 36a of the secondary air intake cylinder part 36 as shown in FIG. Combined with. In the state in which the first burner half 17 and the second burner half 18 are combined, the inner burner ring member 19 has an upper opening 38 a of the main body cylinder portion 38 concentric with the opening 30 of the first burner half 17. Is made up of. The internal burner ring member 19 is configured such that the flaming partition wall 39 a of the partition flange portion 39 faces the ceiling 27 surrounding the opening 30 of the first burner half body 17 with a predetermined facing interval, thereby causing the combustion space portion 14. The lower part of the flame opening 23 that opens in an annular shape is configured.

  The internal burner ring member 19 is combined with the first burner half 17 so that each convex portion 41 formed on the partition flange portion 39 faces each convex portion 31. Each protrusion 31 of the first burner half 17 and each protrusion 41 of the internal burner ring member 19 are abutted with each other via a separator member 20 to be described later. A flow control unit 26 that divides the slit 24 to control the flow of the mixed gas is configured.

  As shown in FIG. 3, the inner burner ring member 19 has the outer peripheral flange portion 39 d of the partition flange portion 39 abutted against the inner peripheral surface of the outer peripheral wall portion 28 of the first burner half body 17. The inner burnering member 19 divides the above-mentioned pressure equalization space portion 22 formed of the annular space portion into the outer region of the flame opening 23 from the partition wall portion 39c of the partition flange portion 39 and the mixed gas flow path 21. And configure it at the top. The internal burner member 19 communicates the pressure equalization space 22 and the mixed gas flow path 21 with a large number of gas supply holes 43 formed in the partition wall 39c, so that the mixed gas flows from the mixed gas flow path 21 to the pressure equalization space. To be supplied into the section 22.

  The internal burner member 19 supplies each gas supply so that the mixed gas flowing in the swirl flow in the mixed gas flow path 21 flows in the pressure equalization space 22 with the direction of swirl flow. The hole 43 may be configured by a tapered hole whose wall faces from the downstream side to the upstream side. In addition, the internal burner member 19 may be configured such that each gas supply hole 43 is an arc-shaped long hole inclined in the central direction. In the internal burner member 19, the inner diameter and the number of the gas supply holes 43 are appropriately set according to the combustion specifications so that an appropriate amount of mixed gas is supplied from the mixed gas flow path 21 into the pressure equalizing space 22. To do.

  A separator member 20 is combined with the inner burner ring member 19 on the partition flange portion 39. The separator member 20 is formed in an annular shape having an opening 44 as shown in FIG. 11, and is formed with an inclination gradually downward from the inner peripheral portion toward the outer peripheral portion as shown in FIG. Yes. A plurality of positioning holes 45 are formed in the separator member 20 at a predetermined interval in the circumferential direction. Each positioning hole 45 positions the separator member 20 by the small protrusions 42 relatively fitting as shown in FIG. 4 in a state where the separator member 20 is combined with the internal burner member 19.

  The separator member 20 is formed so that the outer diameter is substantially equal to the outer diameter of the flame port partition wall portion 39 a of the inner burner ring member 19, and the opening 44 has an inner diameter substantially the same as the opening 30 of the first burner half body 17. It is formed in the diameter. The separator member 20 is formed so that the inclination angle described above is substantially equal to the inclination angle of the ceiling portion 27 of the first burner half 17 and the flame port partition wall 39 a of the internal burner ring member 19. In a state where the separator member 20 is inserted and combined between the first burner half 17 and the internal burner ring member 19, the opening portion 44 has an upper opening of the main body cylinder portion 38 with respect to the internal burner member 19. Concentric with the portion 38a.

  The separator member 20 constitutes a slit parallel to each other between the ceiling portion 27 of the first burner half 17 and the flame port partition wall 39a of the internal burner ring member 19 so that the flame port 23 can be connected to the upper flame as described above. It is divided into a mouth 23a and a lower flame mouth 23b. Further, as shown in FIG. 4, the separator member 20 is sandwiched between the convex portion 31 formed on the ceiling portion 27 of the first burner half 17 and the convex portion 41 formed on the flame port partition wall 39a of the internal burner ring member 19. By closing this portion and configuring each flow control unit 26, the flame opening 23 is divided in the circumferential direction, and an arcuate flame opening slit 24 is formed between each.

  In the burner device 1, a large gap is set between the first burner half 17 and the internal burner ring member 19, and two separator members 20 </ b> A and 20 </ b> B are stacked between them, for example, as shown in FIG. 12. You may make it insert in a state. In the burner device 1, by providing such a structure, it is possible to configure the three-layer structure flame opening 23 that increases the opening area and maintains the blown-out pressure of the mixed gas.

  In the burner device 1, when the two separator members 20 </ b> A and 20 </ b> B described above are provided, a plurality of first protrusions are formed on the main surface on the side facing the first burner half body 17 as shown in FIG. 13. Separator members 20A and 20B in which a plurality of second convex portions 46a to 46c are integrally formed on the main surface on the side facing the internal burnering member 19 are formed while the portions 45a to 45c are integrally formed. Good. In the burner device 1, the flow control unit 26 is configured in the slit formed between the separators 20 </ b> A and 20 </ b> B by these convex portions 45 a to 45 c and 46 a to 46 c. In the burner device 1, the separator members 20 </ b> A and 20 </ b> B are provided so that the first convex portions 45 a to 45 c and the second convex portions 46 a to 46 c are formed on the convex portion 31 on the first burner half body 17 side and the inside. By providing the function of the convex portion 41 on the burnering member 19 side, these can be made unnecessary.

  In the burner device 1, the projections 45 a to 45 c of the separator member 20 </ b> A and the projections 46 a to 46 c of the separator member 20 </ b> B are combined at a position shifted in the circumferential direction as shown in FIG. A large number of flow control units 26 can be configured. In the burner device 1, the flame opening 23 can be divided into a large number by forming the separator member 20 into a ribbon-folded shape, for example.

  In the burner device 1 including the above-described constituent members, the inner burner ring member 19 is fitted to the upper opening 36 a of the secondary air intake cylinder portion 36 with respect to the second burner half 18, thereby fitting the fitting portion 40. Combined. In the burner device 1, this assembly is located in the central region of the bottom surface portion 33 of the second burner half 18 and has a shape in which a cylindrical portion made of the internal burner member 19 rises.

  In the burner device 1, the separator member 20 is overlapped and combined with the assembly on the partition flange portion 39 of the internal burner ring member 19. In the burner device 1, the separator member 20 forms a concentric circle with the upper opening 36 a of the secondary air intake cylinder portion 36 by the convex portion 41 being relatively fitted into each positioning hole 45. Combined.

  In the burner device 1, the first burner half 17 is combined with the assembly of the second burner half 18, the internal burner ring member 19 and the separator member 20. In the burner device 1, the flange portion 32 of the first burner half 17 and the flange portion 37 of the second burner half 18 are abutted with each other over the entire area, and the flange portions 32 and 37 are caulked. The first burner half 17 and the second burner half 18 are integrated to form the burner body 15 and the mixed gas supply pipe 16.

  In the burner device 1, the outer peripheral edge of the partition wall flange portion 39 of the internal burner ring member 19 is abutted over the entire area with the inner peripheral surface of the outer peripheral wall portion 28 of the first burner half body 17, whereby the burner main body portion. 15, the mixed gas flow path 21 and the pressure equalizing space 22 are divided and formed. In the burner device 1, the opening 30 of the first burner half 17, the upper opening 38 a of the main body cylinder portion 38 of the internal burner ring member 19, and the opening 44 of the separator member 20 are concentrically combined with each other. An upper opening of the combustion space 14 is formed.

  In the burner device 1, the ceiling portion 27 of the first burner half 17 and the flaming partition wall 39 a of the internal burner ring member 19 face each other at a predetermined interval in the height direction, so that the combustion space portion The flame outlet 23 is configured to open the pressure equalizing space 22 in an annular shape with respect to 14. In the burner device 1, the separator member 20 interposed between the first burner half 17 and the internal burner ring member 19 has two layers of an upper flame port 23 a and a lower flame port 23 b over the entire circumference of the flame port 23. Divide into

  In the burner device 1, the projections 31 of the first burner half 17 and the projections 41 of the internal burner ring member 19 are abutted so as to sandwich the separator member 20, so that the flames are positioned at equal intervals. A plurality of flow control units 26 that block a part of the mouth 23 are configured. In the burner device 1, each flow control unit 26 divides the flame opening 23 into a plurality of flame opening slits 24 having the same opening length in the circumferential direction.

  The burner device 1 manufactured through the above steps is installed in the combustion section 5 of the cassette stove 2, and the mixed gas supply pipe section 16 is connected to the primary air suction damper. In the burner device 1, a mixed gas obtained by mixing the primary gas and the fuel gas supplied from the gas cylinder 3 in the primary air suction damper is supplied from the mixed gas supply pipe portion 16 into the burner main body portion 15. In the burner device 1, the mixed gas flows as a swirling flow in the mixed gas flow path 21 formed in the burner main body portion 15 and is supplied into the pressure equalizing space portion 22. To the combustion space 14 through the flame port 23 at a predetermined angle.

  In the burner device 1, when the knob 10 is operated and the spark plug 9 sparks, the mixed gas in the combustion space portion 14 is ignited, and a swirling flame is generated and burned in the combustion space portion 14. In the burner device 1, the mixed gas blown out from each flame slit 24 with a uniform pressure generates an upward vortex flame in the combustion space 14 and burns it, so that the second burner half 18 The secondary air is sucked into the combustion space portion 14 from the bottom side, and efficient combustion is performed. In the burner device 1, the tip portions of the eddy current flame do not collide with each other in the combustion space portion 14, and the central portion of the non-heating body is efficiently heated.

  In the burner device 1, as described above, the first burner half 17, the internal burner ring member 19, and the separator member 20 divide the upper flame port 23 a and the lower flame port 23 b in the vertical direction and a plurality of them. Although the flame port 23 divided into the arc-shaped flame port slit 24 is configured, it is needless to say that the configuration is not limited thereto. In the burner device 1, the flow control unit that divides the flame port 23 into a plurality of flame port slits 24 by directly abutting the projections 31 of the first burner half 17 and the projections 41 of the internal burner ring member 19. 26 may be configured.

  The burner device 50 shown in FIGS. 14 and 15 as the second embodiment is an internal burner member in place of the convex portion 31 formed on the inner surface of the ceiling portion 27 of the first burner half 17 in the separator member 51. It has a feature in the structure in which the convex part 53 which comprises the flow control part 52 in cooperation with the 19 convex part 41 was formed. Note that the burner device 50 has the same basic configuration as the burner device 1 described above, and therefore the description thereof is omitted by assigning the same reference numerals to the respective members and the corresponding portions.

  In the first burner half 17, the ceiling portion 27 is formed flat as a whole, so that the opening 30 constituting the upper portion of the flame outlet 23 is formed with high accuracy by reducing the occurrence of distortion over the entire circumference. As a result, a stable flame is blown out from the flame opening 23. The first burner half 17 can be reduced in cost by simplifying the mold and improving the yield.

  The separator member 51 has a basic configuration similar to that of the separator member 20 described above. The outer diameter of the separator member 51 is substantially equal to the outer diameter of the flame port partition wall 39a of the inner burnering member 19, and the opening 54 has an inner diameter thereof. The whole of the first burner half 17 having the same diameter as the opening 30 has an annular shape. The separator member 51 is also provided with an inclination angle that gradually decreases downward from the opening edge toward the outer peripheral edge, and this inclination angle is the flame of the ceiling portion 27 of the first burner half 17 and the internal burner ring member 19. It is substantially equivalent to the inclination attached to the mouth partition wall 39a.

  As shown in FIG. 15, the separator member 51 is integrally formed with a plurality of convex portions 53 that protrude to the upper surface side. The convex portions 53 are formed to be opposed to the convex portions 41 on the inner burner member 19 side and are equally spaced from each other in the circumferential direction. Each convex portion 53 has a rectangular shape whose major axis is the diameter direction, and a height that abuts against the inner surface of the ceiling portion 27 of the first burner half 17 in a state where the separator member 51 is combined with the internal burner ring member 19. It has.

  In the separator member 51, a plurality of rectangular recesses 55 are formed on the bottom surface side at equal intervals from each other in the circumferential direction by projecting the protrusions 53. Each rectangular recess 55 is formed so that its opening shape is substantially the same as that of each protrusion 41 on the inner burner member 19 side. Since the separator member 51 has a simple shape, the mold structure does not become so complicated even if the protrusions 53 are formed to protrude, and the separator member 51 can be formed with high accuracy and good yield.

  The separator member 51 configured as described above is also combined on the flame port partition wall 39a of the internal burner ring member 19 combined with the second burner half 18 as shown in FIG. As shown in FIG. 15, the separator member 51 is positioned by being combined with the internal burner ring member 19 so that the respective convex portions 41 are relatively fitted to the respective rectangular concave portions 55, and the opening portion 54 is formed in the main body cylindrical portion 38. Concentric with the upper opening 38a.

  As shown in FIGS. 14 and 15, the separator member 51 constitutes a lower flame port 23 b of the flame port 23 that opens into the combustion space portion 14, between the flame hole partition wall 39 a of the internal burnering member 19. In the separator member 51, each rectangular concave portion 55 and each convex portion 41 on the inner burnering member 19 side divide the lower flame opening 23b in the circumferential direction to constitute a flow control portion 52, and an arcuate shape between each A flame slit 24 is formed.

  In the separator member 51, each convex portion 53 is abutted against the inner surface of the ceiling portion 27 of the first burner half 17 by combining the first burner half 17 and the second burner half 18. In the separator member 51, the opening 54 forms a concentric circle with the opening 30 of the first burner half 17, and the upper flame port 23 a of the flame port 23 that opens to the combustion space portion 14 is formed between the opening portion 54 and the ceiling portion 27. To do. In the separator member 51, each convex portion 53 divides the upper flame opening 23 a in the circumferential direction, and forms an arcuate flame opening slit 24 therebetween.

  Also in the burner device 50 including the separator member 51 described above, the mixed gas that swirls in the pressure equalizing space portion 22 strikes each flow control portion 52 provided at equal intervals along the flame port 23, and thus the flow velocity changes. Give rise to Also in the burner device 50, the mixed gas flows against the flow control unit 52 that narrows the flow path, thereby generating a negative pressure, thereby reducing the pressure. Also in the burner device 50, the pressure gradually increases as the mixed gas flows from the flow control unit 52 to the downstream side, and the amount of the mixed gas blown out from the arc-shaped flame slit 24a is small on the downstream side and large on the upstream side. Become.

  Therefore, also in the burner device 50, the flame is angled from each flame opening slit 24 in the combustion space portion 14 and blown out along the inner peripheral wall of the flame opening 23, so that the center of the combustion space portion 14 can be obtained. Reduce the flame length in each direction. Also in the burner device 50, the flame opening 23 is opened upward in the combustion space portion 14, so that it burns as an eddy flame that goes upward, and burns from the lower opening portion 36 b of the secondary air intake cylinder portion 36. The secondary air is efficiently sucked into the space 14 and combustion is efficiently performed in a stable state.

  Also in the burner device 50, the flame blown out from each flame slit 24 has a small flame length because the pressure of the mixed gas becomes small in the vicinity of each flow control unit 52, and the flame becomes large because the pressure becomes large at the front end side in the traveling direction. The length increases. Also in the burner device 50, the mixed gas burns as an eddy current flame so that the flame tip near the flow control unit 52 having a small flame length overlaps and complements the front end of the flame in the traveling direction. Combustion is performed with a flame having a substantially uniform flame length over the entire circumference.

  In the burner device 50, as described above, the flame port 23 is divided into the upper flame port 23a and the lower flame port 23b over the entire circumference by the separator member 51, and a large opening area is maintained with respect to the combustion space portion 14. Thus, a large amount of mixed gas can be blown out. Further, in the burner device 50, the opening size of each flame opening slit 24 is restricted by the separator member 51, and the discharge pressure of the mixed gas blown out from the flame opening slit 24 into the combustion space portion 14. Is held. Also in the burner device 50, a large amount of mixed gas is blown out from each flame slit 24 into the combustion space portion 14 in a stable state, and a swirling flame is generated in the combustion space portion 14 to improve the combustion efficiency. It has been.

  In the burner device 50, the convex portion 41 and the rectangular concave portion 55 are fitted and the separator member 51 is positioned and combined with the internal burner ring member 19, and each flow control unit 52 is arranged along the flame opening 23. Constitute. In the burner device 50, each flow control unit 52 is configured at the same location of the upper flame port 23 a and the lower flame port 23 b by the convex portion 41 of the internal burner ring member 19 and the convex portion 53 of the separator member 51. Therefore, in the burner device 50, it is possible to form the high-precision flame mouth slits 24 in the upper flame mouth 23a and the lower flame mouth 23b.

  Further, in the burner device 50, since the portion constituting the flow control unit 52 is not formed in the first burner half body 17, the dimensional accuracy of the first burner half body 17 is eased and the first burner half body 17 is reduced. And the assembly accuracy of the second burner half 18 is also relaxed, and a significant cost reduction can be achieved.

It is a top view of the cassette cooker provided with the burner apparatus. It is a top view of the burner apparatus shown as embodiment. It is a principal part longitudinal cross-sectional view explaining the internal structure of a burner apparatus. It is a principal part longitudinal cross-sectional view explaining the flow control part provided in a flame mouth. It is a top view explaining the combustion state of a burner apparatus. It is a side view explaining the combustion state of a burner apparatus. It is a top view of a 1st burner half body. It is a bottom view of a 2nd burner half body. It is a top view of an internal burner member. It is a principal part longitudinal cross-sectional view of an internal burnering member. It is a top view of a separator member. It is a principal part longitudinal cross-sectional view explaining another flow control part. It is a top view of another separator member. It is a principal part longitudinal cross-sectional view explaining the internal structure of the burner apparatus shown as 2nd Embodiment. It is a principal part longitudinal cross-sectional view explaining the flow control part provided in a flame mouth.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Burner apparatus, 2 cassette cooker, 3 gas cylinder, 4 gas cylinder loading part, 5 combustion part, 14 combustion space part, 15 burner main-body part, 16 mixed gas supply pipe part, 17 1st burner half body, 18 2nd burner half body , 19 Internal burner member, 20 Separator member, 21 Mixed gas flow path, 22 Pressure equalizing space part, 23 Flame port, 24 Flame port slit, 25 Mixed gas supply path, 26 Flow control part, 27 Ceiling part, 28 Outer peripheral wall 29, mixed gas supply half, 30 opening, 31 convex, 33 bottom surface, 34 outer peripheral wall, 35 mixed gas supply half, 36 secondary air intake cylinder, 38 main body cylinder, 39 partition Flange part, 40 fitting part, 41 convex part, 43 gas supply hole, 44 opening part, 50 burner device, 51 separator member, 52 flow control part, 53 convex part, 54 opening Part, 55 rectangular recess

Claims (6)

A ceiling part in which an opening part constituting an upper part of the flame opening that is annularly opened in the combustion space part is formed, an outer peripheral wall part formed over the entire outer periphery of the ceiling part, and the outer peripheral wall part A first burner half having a mixed gas supply pipe half formed protruding in a tangential direction to
A bottom surface portion that is integrally formed with a cylindrical secondary air intake tube portion that is opposed to the opening of the first burner half and supplies secondary air to the combustion space portion, and an outer peripheral edge of the bottom surface portion. The outer peripheral wall part formed over the circumference and the mixed gas supply pipe half part formed to project tangentially to the outer peripheral wall part, each of the opposed outer peripheral wall part and the mixed gas supply By combining the first half of the burner with the pipe half body, the annular mixed gas flow path is provided inside, and the mixed gas supply path communicating with the mixed gas flow path in the tangential direction is provided inside. A second half of the burner that constitutes the burner main body integrally provided with the mixed gas supply pipe provided;
An upper opening that is substantially the same diameter as the opening of the first burner half and forms a lower portion of the flame opening, and the outer peripheral wall of the first burner half around the upper opening And a partition wall flange portion having a plurality of gas supply holes formed at equal intervals with respect to the circumferential direction and having a lower opening portion at the second burner half. When combined with the body, the partition flange portion is opposed to the ceiling portion of the first burner half to form an annular pressure equalizing space portion communicating with the mixed gas flow path through the gas supply holes. An internal burner member;
Provided between the inner surface of the ceiling portion along the opening of the first burner half and the inner surface of the partition flange portion along the opening of the internal burner ring member, The mixed gas flow control means is divided into a plurality of arc-shaped flame mouth slits having substantially the same length in the direction, and the mixed gas is blown out from each of the flame mouth slits into the combustion space portion at a predetermined angle. A burner device comprising: A ceiling part in which an opening part constituting an upper part of the flame opening that is annularly opened in the combustion space part is formed, an outer peripheral wall part formed over the entire outer periphery of the ceiling part, and the outer peripheral wall part A first burner half having a mixed gas supply pipe half formed protruding in a tangential direction to
A bottom surface portion that is integrally formed with a cylindrical secondary air intake tube portion that is opposed to the opening of the first burner half and supplies secondary air to the combustion space portion, and an outer peripheral edge of the bottom surface portion. The outer peripheral wall part formed over the circumference and the mixed gas supply pipe half part formed to project tangentially to the outer peripheral wall part, each of the opposed outer peripheral wall part and the mixed gas supply By combining the first half of the burner with the pipe half body, the annular mixed gas flow path is provided inside, and the mixed gas supply path communicating with the mixed gas flow path in the tangential direction is provided inside. A second half of the burner constituting a burner main body integrally provided with a mixed gas supply pipe provided;
An upper opening that is substantially the same diameter as the opening of the first burner half and forms a lower portion of the flame opening, and the outer peripheral wall of the first burner half around the upper opening And a partition wall flange portion having a plurality of gas supply holes formed at equal intervals with respect to the circumferential direction and having a lower opening portion at the second burner half. When combined with the body, the partition flange portion is opposed to the ceiling portion of the first burner half to form an annular pressure equalizing space portion communicating with the mixed gas flow path through the gas supply holes. An internal burner member;
An opening having an inner diameter substantially the same as the opening of the first burner half, and between the ceiling of the first burner half and the partition flange of the inner burner ring member Including at least one or more annular separator members that divide each of the above-mentioned flame opening slits in the vertical direction over the entire circumference by being provided,
At least the inner surface of the partition flange portion along the opening of the inner burnering member and the main surface of the separator member facing the inner surface are abutted with each other so that the length of the flame opening in the circumferential direction is increased. A mixed gas flow control unit is formed that divides the plurality of substantially equal arc-shaped flame slits and blows the mixed gas from each of the flame slits into the combustion space at a predetermined angle. Burner device. The second burner half is formed by gradually raising the bottom surface part in the circumferential direction from the opening of the mixed gas supply pipe half part,
The flow direction of the mixed gas in the burner main body configured by abutting and combining the outer peripheral wall portions and the mixed gas supply pipe half portions facing each other with respect to the first burner half body The burner device according to claim 1 or 2, wherein the mixed gas flow passage having an annular shape whose cross-sectional area is gradually narrowed is formed.   A plurality of the flow control means are formed integrally at least at the ceiling portion of the first burner half and the inner peripheral edge of the partition flange portion of the internal burner ring member, and are abutted against the opposing surface. The burner device according to any one of claims 1 to 3, wherein the burner device is configured by a convex portion. Comprising at least one or more annular separator members having an inner diameter substantially the same as the opening of the first burner half,
The separator member is provided between the ceiling portion of the first burner half and the partition flange portion of the internal burner ring member so that each flame slit is vertically moved over the entire circumference. The burner device according to claim 1, wherein the burner device is divided into two sections. A plurality of mixed gas control convex portions are formed in the separator member in the vicinity of the inner peripheral portion and at equal intervals in the circumferential direction,
Each said mixed gas control convex part is faced | matched by the said partition part flange part of the said ceiling part of the said 1st burner half body, the said internal burner ring member, or the other separator member overlapped, and the said flow control means is comprised. The burner device according to claim 5.

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