CN110873330B

CN110873330B - Combustion apparatus

Info

Publication number: CN110873330B
Application number: CN201811010417.0A
Authority: CN
Inventors: 黄重景; 黄锦颖; 黄信铭; 黄信雄; 叶严仁; 林冠州
Original assignee: Grand Mate Co Ltd
Current assignee: Grand Mate Co Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2021-08-20
Anticipated expiration: 2038-08-31
Also published as: CN110873330A

Abstract

A combustion device comprises at least one burner, a supporting component and an infrared generating net; wherein the burner is provided with a fire outlet; the front shield of the supporting component comprises a flat-plate-shaped cover plate, and the cover plate is provided with a plurality of holes; the infrared generation net is arranged on the supporting component and corresponds to the fire outlet, and the infrared generation net and the cover plate are heated to generate flame at the fire outlet. Therefore, a heat source generating open fire and infrared rays is formed, so that the heating intensity is effectively improved, and the aim of uniform heating is fulfilled.

Description

Combustion apparatus

Technical Field

The present invention relates to combustion devices; in particular to a combustion device capable of generating infrared rays.

Background

Generally, a gas combustion apparatus burns gas to generate flames to heat an object with the flames. When the gas combustion device is used for heating an object, the heat conduction path is conducted from the surface of the object to the interior of the object, so that the surface of the object is often heated more, the interior of the object is often heated less, and the overall heating of the object is uneven.

In order to solve the above problems, an infrared heat source device, such as taiwan patent No. M543657, is a device that uses the property of infrared rays to penetrate through an object, so that the surface of the object and the inside of the object can be heated simultaneously. In this patent, the gas spraying device 3 outputs gas to heat the mesh structure 1 to generate infrared rays, and the infrared rays are scattered by the arc-shaped mesh structure 1 to be scattered outward from the second surface 12 of the mesh structure 1. However, the arc shape of the net structure 1 will cause the scattering direction of the scattered infrared rays to be less concentrated, so that when the infrared rays scattered by the infrared heat source device act on the object, the intensity of the infrared rays received by the object per unit area is more uneven.

Therefore, the design of the existing infrared heat source device is still not perfect and there is a need for improvement.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a combustion apparatus, which can uniformly scatter infrared rays scattered from the combustion apparatus in the same direction.

To achieve the above objects, the present invention provides a combustion apparatus comprising at least one burner having a flame outlet, the at least one burner burning gas and generating flame through the flame outlet; a support assembly including a front mask having a plate-like cover plate having a plurality of holes communicating an outer surface and an inner surface of the cover plate; an infrared generating net arranged on the supporting component and corresponding to the fire outlet; the infrared ray generating net faces the inner surface of the cover plate; the infrared generating net is heated by the flame generated by the at least one burner to generate infrared rays, and the infrared rays are transmitted out from the holes.

The invention has the advantages that the design that the front shield is provided with the flat-plate-shaped cover plate enables the scattered infrared rays to be uniformly scattered in the same direction, and the problem that the intensity of the infrared rays received by the unit area of an object is reduced due to the overlarge infrared ray scattering range of the existing combustion device is effectively solved.

Drawings

Fig. 1 is a perspective view of a combustion apparatus according to a first preferred embodiment of the present invention.

Fig. 2 is a sectional view of the combustion apparatus of the above preferred embodiment.

Fig. 3 is an exploded view of the combustion apparatus of the above preferred embodiment.

Fig. 4 is a plan view of the reflecting structure of the infrared reflecting plate in the matrix arrangement according to the preferred embodiment.

Fig. 5 is a sectional view taken along line a-a' of fig. 4.

Fig. 6 is a top view of another infrared reflection plate with a staggered arrangement according to the above preferred embodiment.

FIG. 7 is a schematic view of the infrared ray emitted from the combustion apparatus according to the preferred embodiment.

Fig. 8 is a perspective view of an infrared reflection plate according to a second embodiment of the present invention.

Fig. 9 is a perspective view of an infrared reflection plate according to a third embodiment of the present invention.

Fig. 10 is a perspective view of an infrared reflection plate according to a fourth embodiment of the present invention.

Fig. 11 is a perspective view of an infrared reflection plate according to a fifth embodiment of the present invention.

Detailed Description

In order that the invention may be more clearly described, preferred embodiments will now be described in detail with reference to the accompanying drawings. Referring to fig. 1 to 7, a combustion apparatus 100 according to a first preferred embodiment of the present invention includes a supporting member 10, an infrared ray generating net 20, an infrared ray reflecting plate 40 and at least one burner 30, wherein:

as shown in fig. 3, the support assembly 10 includes a front mask 12 and a rear mask 14, wherein the front mask 12 is disposed obliquely, and the front mask 12 is made of metal. The front mask 12 has a flat and rectangular cover plate 121, and the cover plate 121 has a plurality of holes 124 communicating an outer surface 121a and an inner surface 121b of the cover plate 121. In this embodiment, the front shield 12 further includes a ring wall 13, the ring wall 13 has an upper sidewall 131 connected to the top edge of the cover plate 121, a lower sidewall 132 connected to the lower edge of the cover plate 121, and two side sidewalls 133 connected to the two side edges of the cover plate 121, and the upper sidewall 131, the lower sidewall 132, and the two side sidewalls 133 all have a plurality of holes 134 communicating an inner surface and an outer surface of the ring wall; the annular wall 13 of the front mask 12 extends outward to form a plurality of first extending portions 135, in this embodiment, the first extending portions 135 are respectively located on the upper sidewall 131 and the lower sidewall 132. The cover plate 121 has an opening 122 located near a lower edge of the cover plate 121, and the opening 122 penetrates the inner surface 121a and the outer surface 121b of the cover plate 121.

The rear mask 14 is disposed obliquely and made of metal. The rear mask 14 has a flat and rectangular rear plate 141; the rear mask 14 further includes a ring wall 15 connected to the periphery of the rear plate 141, the ring wall having an upper sidewall 151 and a lower sidewall 152, the upper sidewall 151 connected to the top edge of the rear plate 141, the upper sidewall 151 having a plurality of holes 154 communicating an inner surface and an outer surface of the ring wall 15 of the rear mask 14, the ring wall 15 of the rear mask 14 extending outward to form a plurality of second extending portions 155, in this embodiment, the second extending portions 155 are respectively located on the upper sidewall 151 and the lower sidewall 152.

As shown in fig. 2, the infrared ray generating net 20 is disposed between the front mask 12 and the rear mask 14 of the support assembly 10 and faces the inner surface 121a of the cover plate 121; the periphery of the infrared generating net 20 is extended outward to form a plurality of fixing portions 22 (refer to fig. 3), each fixing portion 22, each first extending portion 135 and each second extending portion 155 correspond, and each fixing portion 22 is sandwiched between each first extending portion 135 and each second extending portion 155, and the front mask 12 and the infrared generating net 20 are fixed to the rear mask 14 by bolt and nut bonding or welding. The infrared ray generating net 20 is heated by the flame to generate infrared ray and is penetrated through the holes 124 of the front cover 12; the infrared generating net 20 may be made of ceramic, metal, alloy, etc., and in this embodiment, it is made of iron-chromium-aluminum alloy.

As also shown in fig. 1, the at least one burner 30 has a fire outlet 32, the fire outlet 32 is located below the opening 122 of the cover plate 121, and the infrared ray generating net 20 corresponds to the fire outlet 32; the at least one burner 30 burns gas to generate flame through the fire outlet 32, and acts on the infrared generation net 20; in the present embodiment, the number of the burners 30 is plural, and the flame generated from each of the fire outlets 32 of each burner 30 passes through the opening 122 of the front plate 121 so that the infrared ray generation net 20 corresponding to each of the fire outlets 32 is heated by the flame. However, in practice, only the flame can burn on the infrared generating net 20, therefore, the burner 30 can also extend into the opening 122, so that the position of the fire outlet 32 is located in a chamber formed by the front shield 12 and the rear shield 14 and close to the infrared generating net 20.

As shown in fig. 2, the infrared reflection plate 40 is located between the rear mask 12 and the infrared generation net 20, the infrared reflection plate 40 has a flat and rectangular main board 401 (as shown in fig. 3), the infrared reflection plate 40 is disposed in an inclined manner, the main board 401 corresponds to the infrared generation net 20, the infrared reflection plate 40 further includes a ring wall 41 connected to the periphery of the main board 401, the ring wall 41 of the infrared reflection plate 40 has an upper side wall 411 connected to the top edge of the main board 401, and the height of the ring wall 41 of the infrared reflection plate 40 is smaller than the height of the ring wall 15 of the rear mask 14. The infrared reflection plate 40 has a reflection surface 401a and an outer surface 401b, the reflection surface 401a faces the infrared generation net 20, the reflection surface 401a is used for reflecting the infrared generated by the infrared generation net 20, so that the reflected infrared passes through the infrared generation net 20 and passes through the holes 124 of the front cover 12. The infrared reflection plate 40 is made of metal, such as stainless steel.

The reflective surface 401a of the infrared reflective plate 40 has a reflective structure 42, the reflective structure 42 includes a plurality of protrusions 421 and a plurality of embosses 422 located between the protrusions 421, the protrusions 421 and the embosses 422 are formed by rolling a metal plate, and the metal plate with the reflective structure 42 is folded into a shape having a main plate 401 and a surrounding wall 41, so that the reflective structure 42 is covered with the entire infrared reflective plate 40. In the present embodiment, the protrusions 421 are tapered and arranged in a matrix (see fig. 4 and 5) or in a staggered arrangement (see fig. 6).

The burner apparatus of the present embodiment further includes a bracket 50, as shown in fig. 3, the bracket 50 has an upper support plate 52, a middle support plate 54, a lower support plate 56 and a fixing member 58, and the bracket 50 is used to fix the relative positions of the front shield 12, the rear shield 14 and the plurality of burners 30. The middle support plate 54 is fixed between the upper support plate 52 and the lower support plate 56, the fixing member 58 fixes the rear mask 14 to the upper support plate 52 by passing through a fixing hole 59 near the center of the upper support plate 52, and the plurality of burners 30 are fixed to the lower support plate 56.

Therefore, as shown in fig. 7, when the flames generated by the fire outlets of the plurality of burners 30 heat the infrared ray generating net 20, the infrared ray generating net 20 is heated and generates infrared rays, a portion of the infrared rays are transmitted through the holes 124 of the front cover 12, another portion of the infrared rays are emitted toward the reflecting surface 401a of the infrared reflecting plate 40, the reflecting surface 401a reflects the another portion of the infrared rays by the reflecting structure 42 and travels toward the front cover 12, and the reflecting structure 42 enables the reflected infrared rays to be uniformly scattered onto the infrared ray generating net 20, so that the infrared ray generating net 20 can be heated by the reflected infrared rays, thereby enhancing the reflecting effect. In practice, the reflection surface 401a may be a plane without the reflection structure 42, and the reflection surface 401a preferably has the reflection structure 42 to achieve the effect of uniformly reflecting the infrared rays to the infrared ray generation net 20. In addition, the front cover 12 is also heated by the flame generated from the flame outlet 32, so that infrared rays are generated and the flame is also emitted from the holes 124 to form a bright flame.

It should be noted that, since the front cover 12 is in a flat plate shape, the infrared scattering direction generated by the front cover 12 can be substantially perpendicular to the flat plate-shaped cover plate 121, so that the infrared scattered by the combustion apparatus 100 can uniformly act on the object in the same direction, and the infrared intensity received by the object on a unit area is more uniform, thereby effectively solving the problem that the intensity of the infrared scattered by the existing combustion apparatus is uneven due to the mesh structure being in an arc shape.

In addition, the density of the convex portions of the reflective surface 401a of the infrared reflective plate 40 may also be different, wherein the density of the convex portions of the annular wall 41 is greater than the density of the convex portions of the main plate 104. In this way, the combustion apparatus 100 can further enhance the infrared ray accumulation capability near the annular wall 41 due to the density of the protrusions of the annular wall 41, and further, the intensity of the infrared rays generated by the infrared ray generation net 20 becomes more uniform.

Furthermore, the density of the convex portions in a middle area of the main board 401 is less than the density of the convex portions in a side area of the main board 401, so that the infrared ray accumulation capability is gradually enhanced from the middle area of the main board to the side area, thereby enhancing the heating degree of the infrared ray generation net in the side area, and making the infrared ray intensity generated by the infrared ray generation net more average.

Fig. 8 shows an infrared reflection plate 60 of a combustion apparatus according to a second preferred embodiment of the present invention, which is based on the infrared reflection plate 40 of the first embodiment, except that a plurality of holes 614 are formed near the top side wall 611 of the infrared reflection plate 60 or the top edge of the main plate 601. In this way, when the flame generated by the fire outlet 32 flows along the reflection surface 601a of the infrared reflection plate 60 to the vicinity of the top edge of the infrared reflection plate 60, the holes 614 can help the flame flowing to the vicinity of the top edge of the infrared reflection plate 60 to flee along the holes 614 to form open flame, so that the gas flows more smoothly. By means of the holes 614, the flame can heat the infrared generating net 20 and the front mask 12 more uniformly, so that the intensity of the infrared emitted from the combustion apparatus 100 is more uniform. Additionally, the upper sidewall 611 of the infrared reflection plate 60 and the vicinity of the top edge of the main board 601 may have a plurality of holes 614.

As shown in fig. 9, the infrared reflection plate 70 of the combustion apparatus 100 according to the third preferred embodiment of the present invention is provided with a reflection surface 701a and an outer surface 701b, the main plate 701 of the infrared reflection plate 70 is curved, the infrared reflection plate 70 is disposed obliquely, and a plurality of holes 714 are provided near the top edge of the infrared reflection plate 70 to communicate the reflection surface 701a and the outer surface 701b of the infrared reflection plate 70. By the arc design of the main plate 701, the flame generated by the fire outlet 32 can smoothly flow to the vicinity of the top edge of the main plate 701 along the reflecting surface 701a of the arc main plate 701, and the flame can also heat the infrared generating net 20 and the front cover 12 more uniformly, so that the intensity of the infrared rays emitted from the combustion apparatus 100 is uniform.

Fig. 10 shows an infrared reflection plate 80 of a combustion apparatus according to a fourth preferred embodiment of the present invention, the infrared reflection plate 80 has a reflection surface 801a and an outer surface 801b, and the infrared reflection plate 80 is recessed from the reflection surface 801a to the outer surface 801b in an arc shape. In this embodiment, the infrared reflection plate 80 is formed by bending a metal plate into a concave arc shape, and at least one gap 716 is formed at the overlapped portion of the metal plate to communicate the reflection surface 801a and the outer surface 801b of the infrared reflection plate 80; the infrared reflection plate 80 is disposed between the rear mask 14 and the infrared reflection plate 80; by the arc design of the reflective surface 801a, the flame generated by the fire outlet can flow more smoothly along the reflective surface 801a of the infrared reflective plate 80 to the vicinity of the top edge of the infrared reflective plate 80. The design of the gap can allow part of the air flow to pass through, so that the gas flows more smoothly. The flame can also heat the infrared generating net 20 and the front cover 12 more uniformly, so that the intensity of the infrared rays emitted from the combustion apparatus 100 is more uniform and increased.

In addition, fig. 11 shows an infrared reflection plate 90 of a combustion apparatus according to a fifth preferred embodiment of the present invention, in practical implementation, the convex parts 921 of the reflection structure 92 of the infrared reflection plate 90 may be parallel long strips, and the long axis direction of the convex parts 921 and the long axis direction of the embossings 922 extend from one end 90a of the infrared reflection plate 90 to the other end 90b opposite to the one end in a predetermined direction.

According to the above, when the infrared rays generated by the combustion device of the present invention are scattered out of the holes of the front cover and the front cover, the flat plate-shaped cover plate of the front cover is projected out in the same direction, so that the heated intensity of the object heated by the infrared rays per unit area is more uniform and consistent.

In addition, the design of the reflecting structure of the infrared reflecting plate enables the flame to be heated on the infrared generating net and the front shade more uniformly, the high temperature of the infrared generating net is maintained, and the combustion device generates infrared rays with higher strength and more uniform strength.

The above description is only for the purpose of illustrating a few preferred embodiments of the present invention and all equivalent modifications which come within the spirit of the invention and the scope of the claims are therefore intended to be embraced therein.

Description of the reference numerals

100 combustion device

10 support assembly

12 front cover 121 mask

121a outer surface 121b inner surface 122 open 124 aperture

13 circular wall

131 upper side wall 132 lower side wall

133 side wall 134 first extension of aperture 135

14 rear mask 141 rear plate

15 ring wall

151 upper side wall 152 and lower side wall 154 apertures

155 second extension part

20 infrared ray generating net

22 fixed part

30 burner

32 fire outlet

40 infrared reflection plate

401a external surface of the main board 401a

41 side wall on the ring wall 411

42 reflective structure 421 convex part 422 embossing

50 support

52 upper support plate 54 middle support plate 56 lower support plate

58 fastener 59 securing hole

60 infrared reflection board

601 main board 601a reflection surface 601b outer surface 611 upper side wall

614 holes

70 infrared reflection plate

701 mainboard 701a reflection face 701b surface 714 hole

80 infrared reflection plate

801a reflective surface 801b outer surface 716 slit

90 infrared reflection board

92 reflection structure 921 convex portion 922 embossing

90a one end 90b the other end

Claims

1. A combustion apparatus, comprising:

the burner is provided with a fire outlet, and the burner burns gas and generates flame through the fire outlet;

the support assembly comprises a front shield, the front shield is provided with a flat-plate-shaped cover plate, and the cover plate is provided with a plurality of holes which are communicated with the outer surface and the inner surface of the cover plate;

the infrared generating net is arranged on the supporting component and corresponds to the fire outlet; the infrared ray generating net faces the inner surface of the cover plate; the infrared generating net is heated by the flame generated by the at least one burner to generate infrared rays, and the infrared rays are transmitted out of the holes;

the cover plate is rectangular, the front cover comprises an upper side wall, the upper side wall is connected to the top edge of the cover plate, the upper side wall is provided with a plurality of holes, the front cover comprises two side walls, the two side walls are connected to the two side edges of the cover plate, and the two side walls are provided with a plurality of holes.

2. The combustion apparatus of claim 1, wherein said shroud has an opening on an opposite side of said top edge; the fire outlet of the at least one burner is positioned below the opening.

3. The combustion apparatus of claim 1, wherein the support assembly includes a rear mask, and the infrared generating screen is disposed between the front mask and the rear mask; the rear shield comprises an upper side wall, the upper side wall of the rear shield is positioned above the upper side wall of the front shield, and the upper side wall of the rear shield is provided with a plurality of holes.

4. The burner apparatus of claim 1, wherein the support assembly comprises a rear shroud having a rear plate and a skirt connected to a periphery of the rear plate; the front shade is provided with a ring wall connected with the periphery of the cover plate; the annular wall of the front shield extends outwards to form a plurality of first extension parts, the annular wall of the rear shield extends outwards to form a plurality of second extension parts, and each first extension part corresponds to each second extension part; the periphery of the infrared generation net extends outwards to form a plurality of fixing parts, and each fixing part is clamped between each first extending part and each second extending part.

5. The combustion apparatus as claimed in claim 4, comprising an infrared reflecting plate located between said rear mask and said infrared generating net; the infrared reflecting plate is provided with a reflecting surface, and the reflecting surface faces the infrared generating net.

6. The combustion apparatus of claim 5, wherein the reflective surface has a reflective structure comprising a plurality of protrusions and a plurality of embossments between the plurality of protrusions.

7. The combustion apparatus of claim 6, wherein the plurality of lobes are arranged in a matrix.

8. The combustion apparatus of claim 6, wherein the plurality of lobes are in a staggered arrangement.

9. The combustion apparatus of claim 6, wherein each of said lobes is tapered.

10. The combustion apparatus of claim 6, wherein the plurality of protrusions are in the form of parallel elongated strips.

11. The combustion apparatus of claim 5, wherein said infrared reflecting plate has at least one slit.

12. The combustion apparatus of claim 5, wherein said infrared reflective plate has a plurality of holes.

13. The combustion apparatus as claimed in claim 6, wherein the infrared reflection plate comprises a main plate and a ring wall connected to a periphery of the main plate, and a density of the plurality of protrusions on the ring wall is greater than a density of the plurality of protrusions on the main plate.

14. The combustion apparatus as claimed in claim 6, wherein the infrared reflecting plate comprises a main plate, and the main plate has a middle region and a peripheral region located at the periphery of the middle region, and the density of the plurality of protrusions at the middle region is less than the density of the plurality of protrusions at the peripheral region of the main plate.