CN217004454U - Air-cooled combustion device - Google Patents
Air-cooled combustion device Download PDFInfo
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- CN217004454U CN217004454U CN202220370282.4U CN202220370282U CN217004454U CN 217004454 U CN217004454 U CN 217004454U CN 202220370282 U CN202220370282 U CN 202220370282U CN 217004454 U CN217004454 U CN 217004454U
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- cooled
- fire grate
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Abstract
The utility model discloses an air-cooled combustion device, which comprises a combustion chamber front cover plate, an air-cooled heat insulation plate, a fire grate support, a combustion chamber bottom plate and a combustion chamber coaming; the combustion chamber front cover plate, the combustion chamber bottom plate and the combustion chamber enclosing plate are connected in an enclosing manner to form a combustion chamber; the fire grate support is arranged at the lower part of the combustion chamber; the air-cooled heat insulation plates are respectively arranged on the inner surfaces of the front wall and the rear wall of the upper part of the combustion chamber; the air-cooled heat insulation plate is characterized in that a plurality of strip-shaped grooves and a first boss are respectively arranged on the surface of the air-cooled heat insulation plate, and the upper end and the lower end of each strip-shaped groove are open. The air-cooled heat insulation plate and the air-cooled channel design can improve the air-cooled effect, and the drawer type fire grate support structure is combined to ensure the dimensional stability, so that the burner is easy to assemble.
Description
Technical Field
The utility model relates to the field of water heaters, in particular to an air-cooled combustion device.
Background
Because the combustion cavity of the gas water heater is under the action of heat convection and heat radiation of internal flame, if a cooling measure is not taken, the wall surface of the combustion cavity can be over-heated, so that the wall surface of the combustion cavity is deformed and even burnt through, and the service life of the gas water heater is influenced. At present, most of gas water heaters adopt a coil pipe of a heat exchanger to surround the outer wall surface of a combustion cavity, and the temperature of the gas water heater is reduced by cold water in the coil pipe. This water-cooling scheme has certain disadvantages: 1. the heat exchanger needs to be provided with a coil pipe, the height of the coaming is increased, and the cost of the whole machine is high due to the fact that the heat exchanger is made of copper and is high in price; 2. the copper coil pipe is more easily corroded by chloride ions and the like in a low-temperature tap water environment, so that water leakage of the heat exchanger is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide an air-cooled combustion apparatus, which uses cold air provided by a fan to wash the inner wall surface of a combustion chamber to cool, thereby replacing the redundant coil pipes of a heat exchanger, reducing the height of the surrounding plate of the heat exchanger, reducing the copper consumption, saving the cost, and simultaneously avoiding the corrosion and water leakage of the coil pipes.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an air-cooled combustion device comprises a combustion chamber front cover plate, an air-cooled heat insulation plate, a fire grate support, a combustion chamber bottom plate and a combustion chamber coaming;
the combustion chamber front cover plate, the combustion chamber bottom plate and the combustion chamber enclosing plate are connected in an enclosing manner to form a combustion chamber; the fire grate support is arranged at the lower part of the combustion chamber; the air-cooled heat insulation plates are respectively arranged on the inner surfaces of the front wall and the rear wall of the upper part of the combustion chamber;
the air-cooled heat insulation plate is characterized in that a plurality of strip-shaped grooves and a first boss are respectively arranged on the surface of the air-cooled heat insulation plate, and the upper end and the lower end of each strip-shaped groove are open.
In some preferred embodiments, after the air-cooled heat insulation plate is installed, the first boss faces the inner wall of the combustion chamber, and the groove faces the inner cavity of the combustion chamber.
In some preferred embodiments, the fire grate support comprises a fire grate front support and a fire grate rear support; the fire grate front support bottom surface is provided with fire grate positioning boss, fire grate positioning boss surface interval is provided with positioning slot.
In some preferred embodiments, the rear part of the bottom surface of the fire row front support is provided with a rear boss inclined backwards; a forward-inclined front boss is arranged at the horizontal bending position of the front side surface of the fire grate front support; and ventilation through holes are formed in the surfaces of the front boss and the rear boss at equal intervals.
In some preferred embodiments, the central lines of the ventilation through holes on the surfaces of the front boss and the rear boss respectively point to the gaps between the air-cooled heat insulation board on the same side and the inner wall of the combustion chamber.
In some preferred embodiments, the fire row rear bracket rear side surface is provided with a fire row limiting boss facing the inner surface of the combustion chamber rear wall.
Advantageous effects
The air-cooled heat insulation plate and the air-cooled channel design can improve the air-cooled effect, and the drawer type fire grate support structure is combined to ensure the dimensional stability, so that the burner is easy to assemble.
Drawings
FIG. 1 is a schematic axial side view of a preferred embodiment of the present invention;
FIG. 2 is a schematic top view of a preferred embodiment of the present invention;
FIG. 3 is a schematic view of an air-cooled heat insulation panel according to a preferred embodiment of the present invention;
FIG. 4 is an enlarged partial view A of a preferred embodiment of the present invention;
FIG. 5 is an enlarged partial view B of a preferred embodiment of the present invention;
FIG. 6 is a schematic illustration of an exploded structure of a preferred embodiment of the present invention;
FIG. 7 is a schematic view of a fire grate support according to a preferred embodiment of the present invention;
FIG. 8 is a schematic side sectional view of a preferred embodiment of the present invention;
FIG. 9 is an enlarged partial view C of a preferred embodiment of the present invention;
FIG. 10 is an enlarged partial view D of a preferred embodiment of the present invention;
in the figure: 1. a combustion chamber front cover plate; 2. air-cooled heat insulation boards; 21. a strip-shaped groove; 22. a first boss; 3. a fire grate support; 31. A fire grate front support; 311. the fire row piece positioning boss; 312. positioning the clamping groove; 313. a rear boss; 314. a front boss; 315. a limiting groove; 32. a fire row rear support; 321. a fire grate limiting boss; 322. a claw; 33. a vent through hole; 4. a combustion chamber floor; 5. A combustion chamber coaming;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-5, the embodiment discloses an air-cooled combustion apparatus, which includes a combustion chamber front cover plate 1, an air-cooled heat insulation plate 2, a fire grate support 3, a combustion chamber bottom plate 4 and a combustion chamber enclosure plate 5;
the combustion chamber front cover plate 1, the combustion chamber bottom plate 4 and the combustion chamber coaming 5 are connected in an enclosing manner to form a combustion chamber; the fire row bracket 3 is arranged at the lower part of the combustion chamber; the air-cooled heat insulation plates 2 are respectively arranged on the inner surfaces of the front wall and the rear wall of the upper part of the combustion chamber;
as shown in fig. 3, the surface of the air-cooled heat insulating board 2 is respectively provided with a plurality of strip-shaped grooves 21 and a plurality of first bosses 22, and the upper and lower ends of each strip-shaped groove 21 are open.
It should be understood that this embodiment only refers to some components of the combustion apparatus, and other common components, such as the fire grate, the ignition needle, the primary air plate, etc., are not specifically described since they are not the focus of the present invention; in addition, the combustion device is used for a gas water heater, and the gas water heater also comprises auxiliary corollary equipment such as a fan, an air inlet pipe and the like.
Because the strip-shaped groove 21 and the first boss 22 exist, a gap exists between the installed air-cooled heat insulation plate 2 and the inner wall of the combustion chamber, when the combustion device works, cold air is conveyed to the inner wall of the combustion chamber through the fan, air heated by flame in the gap is taken away, and therefore air-cooled cooling of the combustion chamber is achieved.
Example 2
The present embodiment is developed on the basis of the above embodiment 1, and the present embodiment provides a specific installation method and working principle of the air-cooled heat insulating sheet, as shown in fig. 1 and 8, after the air-cooled heat insulating board 2 is installed, the first boss 22 faces the inner wall of the combustion chamber, and the strip-shaped groove 21 faces the inner cavity of the combustion chamber. It should be understood that the first projection 22 has a certain height, so that a first gap layer is formed between the air-cooled heat insulation board 2 and the inner wall of the combustion chamber, and further, the strip-shaped groove 21 is projected toward the inner cavity of the combustion chamber to form a second gap layer, so that the thickness of the air-cooled gap is further increased on the basis of not increasing the whole thickness of the combustion chamber. From the spatial position, the first gap layer corresponds to the fire row sheets, and the second gap layer corresponds to the gap between two adjacent fire row sheets. When the fire row piece works, the air temperature above the flame emitted by the fire row piece is obviously higher than the air temperature above the gap of the fire row piece, namely, the air temperature in the first gap layer is higher than the air temperature in the second gap layer.
Preferably, a mounting through hole may be formed in the center of the first boss 22, and the air-cooled heat insulating board 2 may be fixedly connected to the inner wall of the combustion chamber through the mounting through hole.
Example 3
The present embodiment is developed on the basis of the above embodiment 1, and the present embodiment provides a specific structural example of a fire grate support 3, as shown in fig. 6 to 10, the fire grate support 3 includes a fire grate front support 31 and a fire grate rear support 32; the fire row front support 31 and the fire row rear support 32 are both sheet materials and are formed after being bent for multiple times, after the two are assembled, a space is enclosed by five surfaces with empty top surfaces, specifically, the fire row front support 31 encloses the front surface and the bottom surface, and the fire row rear support 32 encloses the left surface, the right surface and the rear surface. Preferably, in order to facilitate the assembly of the fire grate support 3 and improve the consistency and the production efficiency of products, the fire grate rear support 32 is provided with a pair of clamping jaws 322, the fire grate front support 31 is provided with a pair of limiting grooves 315, when the fire grate support 3 is assembled, the clamping jaws 322 of the fire grate rear support 32 are inserted into the limiting grooves 315 of the fire grate front support 31, the fire grate rear support 32 is continuously pushed to the bottom, and the fire grate support 3 is connected together by using movable connection modes such as bolts and screws to complete the assembly of the fire grate support 3.
Further, in order to avoid the condition that the piece appears rocking about the fire row after the installation to guarantee that the interval on the left and right sides orientation is unanimous after the fire row installation, fire row fore-stock 31 bottom surface is provided with fire row piece location boss 311, piece location boss 311 surface interval is provided with positioning slot 312 to fire row. Furthermore, in order to avoid the upward and downward shaking of the fire grate segment after installation, the rear side surface of the fire grate rear bracket 32 is provided with a fire grate limiting boss 321 facing the inner surface of the rear wall of the combustion chamber.
Example 4
The present embodiment is developed on the basis of embodiment 3, and a specific structural example with a better air cooling effect is provided in the present embodiment, a rear boss 313 inclined backward is provided at the rear part of the bottom surface of the fire grate front bracket 31; a forward-inclined front boss 314 is arranged at the horizontal bending position of the front side surface of the fire grate front support 31; the surfaces of the front boss 314 and the rear boss 313 are provided with ventilation through holes 33 at intervals. It should be understood that the inclined bosses are provided to direct cool air delivered by the blower through the ventilation holes 33 to flush the inner wall of the combustion chamber and to carry away hot air between the gap layers. Therefore, cold air is conveyed at a certain inclination angle, because the gap layer is usually very thin, the through hole is generally arranged at the bending part of the sheet material, if the vertical through hole is directly arranged right below the gap part for air supply, the process is difficult to realize, the thickness of the gap layer needs to be increased, and the integral thickness of the combustion chamber is increased. In some preferred embodiments, the central lines of the ventilation through holes 33 on the surfaces of the front projection 314 and the rear projection 313 are respectively directed to the gaps between the air-cooled heat insulation boards 2 on the same side and the inner wall of the combustion chamber for better guiding the cooling air to the gap layer.
The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. An air-cooled combustion apparatus, characterized in that: comprises a combustion chamber front cover plate (1), an air-cooled heat insulation plate (2), a fire grate support (3), a combustion chamber bottom plate (4) and a combustion chamber coaming (5);
the combustion chamber front cover plate (1), the combustion chamber bottom plate (4) and the combustion chamber coaming plate (5) are connected in an enclosing manner to form a combustion chamber; the fire row bracket (3) is arranged at the lower part of the combustion chamber; the air-cooled heat insulation plates (2) are respectively arranged on the inner surfaces of the front wall and the rear wall of the upper part of the combustion chamber;
the air-cooled heat insulation plate (2) is characterized in that a plurality of strip-shaped grooves (21) and first bosses (22) are respectively arranged on the surface of the air-cooled heat insulation plate, and the upper end and the lower end of each strip-shaped groove (21) are open.
2. The air-cooled combustion apparatus according to claim 1, wherein: after the air-cooled heat insulation plate (2) is installed, the first boss (22) faces towards the inner wall of the combustion chamber, and the groove faces towards the inner cavity of the combustion chamber.
3. The air-cooled combustion apparatus according to claim 1, wherein: the fire grate support (3) comprises a fire grate front support (31) and a fire grate rear support (32); fire row front support (31) bottom surface is provided with fire row piece location boss (311), fire row piece location boss (311) surface interval is provided with positioning slot (312).
4. An air-cooled combustion apparatus according to claim 3, wherein: a rear boss (313) inclining backwards is arranged at the rear part of the bottom surface of the fire grate front support (31); a forward-inclined front boss (314) is arranged at the horizontal bending position of the front side surface of the fire grate front support (31); the surfaces of the front boss (314) and the rear boss (313) are provided with ventilation through holes (33) at intervals.
5. The air-cooled combustion apparatus according to claim 4, wherein: the central lines of the ventilation through holes (33) on the surfaces of the front boss (314) and the rear boss (313) respectively point to the gaps between the air-cooled heat insulation board (2) on the same side and the inner wall of the combustion chamber.
6. An air-cooled combustion apparatus according to claim 3, wherein: the rear side surface of the fire grate rear support (32) is provided with a fire grate limiting boss (321) facing the inner surface of the rear wall of the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220370282.4U CN217004454U (en) | 2022-02-23 | 2022-02-23 | Air-cooled combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220370282.4U CN217004454U (en) | 2022-02-23 | 2022-02-23 | Air-cooled combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217004454U true CN217004454U (en) | 2022-07-19 |
Family
ID=82395749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220370282.4U Active CN217004454U (en) | 2022-02-23 | 2022-02-23 | Air-cooled combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217004454U (en) |
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2022
- 2022-02-23 CN CN202220370282.4U patent/CN217004454U/en active Active
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