JPH0229400Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention mainly relates to burner devices for water heaters and other types in which a plurality of line-shaped gas burners are arranged in parallel.

(Prior art) Conventionally, as this type of device, for example, the
As seen in No. 7178, a plurality of burners each having a burner port are arranged parallel to each other, and a slit-shaped burner port is inserted through the part of each burner provided with the burner port, and two burners are provided between each burner port. A type equipped with a flame holding plate having a secondary air port is known.

(Problem to be solved by the invention) However, in this case, the flame stabilizing plate is generally fixed to the lower burner head at the leg pieces that extend downward in a bent manner at both the front and rear ends of the flame holding plate. In this case, the flame stabilizing plate merely exists on the upper surface of the head and acts to improve the combustibility of each burner,
Thus, there is a need for the flame stabilizing plate to be able to be used also as a holding frame for holding the burner and to be easily assembled into the holding frame.

(Means for Solving the Problems) The object of the present invention is to obtain a burner device that meets such requirements.

In order to achieve the above object, the present invention includes a plurality of line-shaped burners each having a burner port arranged in parallel to each other, and a slit-like burner port inserted through the portion of each burner provided with the burner port. , a flame-holding plate having a secondary air port between each burner port, the flame-holding plate having a top plate having each burner port and a secondary air port; A plurality of burners are connected to each burner by forming a downward U-shaped frame casing consisting of a pair of left and right side plates bent and extending downward from the left and right side edges in the direction in which the burner ports and the secondary air ports are arranged side by side. The cover member covers from the top surface to both sides of each burner, and each burner has a flange portion located on both outer sides of the burner body at the bottom center of each burner and both outer ends of the flange portion. and locking pieces protruding outward from both sides, and further provided with engagement grooves in the pair of left and right side plates in which the respective locking pieces engage.

(Example) Embodiments of the present invention will be described with reference to the attached drawings.

In the drawings, reference numeral 1 indicates a burner, and the burner 1 is prepared in the form of two metal plates overlapping each other and having a slit-shaped flame opening 2 extending longitudinally in the horizontal direction on the upper surface thereof. 1 are arranged in parallel in front and back, and a slit-shaped burner port 3 is inserted through the part of each burner 1 provided with the flame port 2, and a secondary air port 4 is provided between each burner port 3. The flame holding plate 5 is provided.

The flame stabilizing plate 5 is bent downward from the upper surface plate 5a having each burner port 3 and each secondary air port 4, and from both left and right edges in the direction in which the burner ports 3 and secondary air ports 4 are arranged side by side. It is formed into a downward U-shaped frame casing consisting of a pair of side plates 5b, 5b extending from above, and constitutes a cover member that covers the plurality of burners 1 from the upper surface thereof to both left and right side surfaces thereof. , and each burner 1 is provided with flange portions 1b, 1b located on both outer sides of the burner body 1a at the lower center thereof, and locking pieces 1d, 1d protruding outward from both outer ends of the flange portions 1b, 1b. and the pair of left and right side plates 5.
b, 5b are provided with engagement grooves 9 in which each locking piece 1d engages, and each burner 1 incorporated in the flame stabilizing plate 5
The burner 1 is of a type in which gas nozzles 7a extending from the gas manifold 7 are present on the lower side, and the burner 1 is connected to the upper part of the flame stabilizing plate 5 side at the engaging parts 1c, 1c at the upper part of the flange parts 1b, 1b on both outer sides. slit-shaped engagement grooves 8 extending on both outsides of each burner port 2;
8 and the flange portions 1b, 1
The locking pieces 1d, 1d extending outward on both sides of the lower part of the flame-holding plate 5 are engaged and positioned within the pair of left and right slit-shaped engagement grooves 9, 9 on the lower side of the side plate 5b of the flame-holding plate 5. It was to so. Further, a fixing member 6 for fixing a plurality of burners 1 within the flame stabilizing plate 5 is provided at the lower part of the flame stabilizing plate 5 that constitutes the cover member,
As clearly shown in FIGS. 2 and 3, for example, the fixing member 6 is in the shape of a lid plate that is superimposed on the lower surface of the flame-holding plate 5, that is, the cover member, and is fixed thereto with screws 10. The member 6 has an air supply port 11 for primary air in the center that guides outside air supplied through a fan (not shown), and air supply ports 1 for secondary air on both sides thereof.
2 and 12 are opened, and a concave groove 13 is formed in the center thereof, and the protrusion 1e below the center of each burner 1 is engaged with and positioned.

The fixing member 6 is not limited to this, and may have a rod shape that skewers the engagement piece 1d, for example, as shown in FIG. It is also possible to provide the side engagement grooves 9, 9 slightly deviated upward, and to configure the fixing member 6 with the grooves 9, 9 and the locking pieces 1d, 1d that engage with the grooves 9, 9. . To install it, insert the burner 1 while applying an external force to expand the side plates 5b, 5b outward, and then release the external force.
The locking pieces 1d, 1d are inserted into the groove 9 by the restoring force of the side plates 5b, 5b, and the burner 1 can be fixed.

FIG. 6 shows an example of use when this burner device is assembled into the forced ventilation type water heater main body 14, and in the same figure, 15 is a blower for forced ventilation, 16 is
indicates a heat exchanger provided within the main body 14.

(Function) To explain this function, a plurality of burners 1 are covered with a flame holding plate 5 from the top surface to both sides thereof,
In addition, the burner 1 has a portion with a flame port inserted into a slit-shaped burner port 3 provided on the upper surface plate 5a of the flame holding plate 5, and an engagement portion provided on the side plate 5b of the flame holding plate 5. By engaging the locking pieces 1d provided on both outer sides of the flange portion 1b of the burner 1 with the groove 9, the cover member made of the flame-holding plate 5 is easily and reliably installed in a predetermined position. The assembly process is relatively simple, and the overall structure is shaped like a frame for easy handling.Furthermore, there is a passage for secondary air between each pair of burners 1, 1. is formed so that good air can be supplied to the burner port 2 of the burner 1 from the secondary air port 4 provided on the top plate 5a. At this time, the flame formed at the burner port 2 of the burner 1 is stabilized by the plate surface between the burner port 3 and the secondary air port 4 of the top plate 5a.

(Effect of the invention) As described above, according to the invention, a plurality of burners are covered with a flame-holding plate from the top to both sides, and each burner is wrapped on both outsides of the burner body at the center of the lower part. the flange portion and the locking pieces protruding outward from both outer ends of the flange portion; and the pair of left and right side plates are provided with engagement grooves in which the locking pieces engage. Therefore, the flame holding effect of the burner is produced, and the burner can be easily and reliably installed within the flame holding plate, making the assembly work simple and easy. It has the effect of being shaped like a housing, making it look good, and making it simple and easy to handle.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of one example of the proposed device, Fig. 2 is a cross-sectional view taken along the - line, Fig. 3 is a perspective view of its fixing member, and Figs. 4 and 5 are slope views of each modification thereof. FIG. 6 is a cutaway side view of an example of the state of use. 1...burner, 1d...locking piece, 2...flame mouth,
3...Burner port, 4...Secondary air port, 5...Flame holding plate, 5a...Top plate, 5b, 5b...Side plate, 6...
...fixing member, 9...engaging groove.

Claims (1)

[Scope of utility model registration request] A plurality of line-shaped burners each having a burner port are arranged parallel to each other, and a slit-like burner port is inserted through a portion of each burner provided with the burner port, and a secondary air port is provided between each burner port. In the device, the flame stabilizing plate is connected to a top plate having each burner port and each secondary air port, and a direction in which the burner port and the secondary air port of the top plate are arranged side by side. A plurality of burners are arranged from the upper surface of each burner to the both sides of each burner by forming a downward U-shaped frame casing consisting of a pair of left and right side plates bent from the left and right side edges and extending downward. The cover member is configured to enclose each burner, and
Each burner is provided with a flange portion located on both outer sides of the burner body at the lower center of the burner body, and locking pieces protruding outwardly from both outer ends of the flange portion, and further provided on the pair of left and right side plates. A burner device comprising an engagement groove in which a locking piece engages.