TW202019283A - Burning device with which infrared is uniformly scattered in the same direction - Google Patents

Abstract

A burning device includes at least one burner, a supporting assembly, and an infrared generating net. The burner is provided with a fire outlet. The supporting assembly includes a front shield and a rear shield correspondingly disposed. The front shield includes a flat cover plate. The cover plate defines a plurality of holes. The rear shield includes a rear plate and a ring wall. The infrared generating net is disposed between the front shield and the rear shield, and corresponds to the fire outlet. The infrared generating net and the cover plate are heated by flames generated from the fire outlet. As a result, the scattered infrared is uniformly scattered in the same direction.

Description

Burning device

The invention relates to a combustion device; in particular, it refers to a combustion device that can generate infrared rays.

Generally speaking, the gas burning device burns gas to generate a flame, and the flame heats an object. When a gas burning device is used to heat an object, since the heat conduction path is conducted from the surface of the object to the interior of the object, the surface of the object is often heated more and the interior of the object is less heated, resulting in uneven heating of the entire object.

In order to solve the above problems, an infrared heat source device, such as the Republic of China Patent No. M543657, uses the characteristics of infrared rays to penetrate an object, so that the surface of the object and the interior of the object can be heated at the same time. In this patent, the gas injection 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 so that the infrared rays are emitted from the second of the mesh structure 1 The surface 12 scatters outward. However, the arc shape of the mesh structure 1 will cause the scattered infrared rays to be less concentrated in the scattering direction, so that when the infrared rays scattered by the infrared heat source device act on the object, the infrared intensity received by the object per unit area is less uniform Consistent.

Therefore, the design of the conventional infrared heat source device has not yet been perfected, and there is still room for improvement.

In view of this, an object of the present invention is to provide a combustion device that can uniformly scatter infrared rays scattered by the combustion device in the same direction.

In order to achieve the above object, the present invention provides a combustion device comprising at least one burner, a supporting component and an infrared generating grid, wherein the at least one burner has an outlet, the at least one burner burns gas and passes through the outlet The fire mouth generates flame; the support assembly includes a front cover and a rear cover, the front cover has a cover plate in the shape of a flat plate, the cover plate has a plurality of holes connecting an outer surface and an inner surface of the cover plate The rear shield corresponds to the front shield, the rear shield has a rear plate and a ring wall connected to the periphery of the rear plate, the ring wall includes an upper side wall, a lower side wall and two side walls, the upper side wall Opposite to the lower side wall, the two side walls are oppositely arranged and each side wall is located between the upper side wall and the lower side wall, the lower side wall and the two side walls are respectively closed; the infrared generating net, It is disposed on the supporting component and corresponds to the fire exit and is located between the front cover and the rear cover; the infrared generating net faces the inner surface of the cover plate; the infrared generating net is affected by the flame generated by the at least one burner Infrared rays are generated by heating, and the infrared rays pass through the holes.

The effect of the present invention is that, through the design of the front cover with a flat cover plate, the scattered infrared rays are evenly scattered in the same direction, which effectively solves the infrared rays received by the object per unit area of the conventional combustion device due to the excessive infrared scattering range The problem of decreased strength.

In order to explain the present invention more clearly, the preferred embodiments are described in detail below with reference to the drawings. Please refer to FIGS. 1 to 7, which is a combustion device 100 according to a first preferred embodiment of the present invention. The combustion device includes a support assembly 10, an infrared generating network 20, an infrared reflecting plate 40 and at least one burner 30 ,among them:

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

The rear cover 14 is inclined and is made of metal. The rear cover 14 has a flat and rectangular rear plate 141; the rear cover 14 further includes a ring wall 15 connected to the periphery of the rear plate 141, the ring wall having an upper side wall 151 and a lower side disposed oppositely The side wall 152 and opposite side walls 153 are located between the upper side wall 151 and the lower side wall 152, the upper side wall 151 is connected to the top edge of the rear plate 141, the upper side wall 151 has a plurality of Each hole 154 communicates an inner surface and an outer surface of the ring wall 15 of the rear shield 14. The ring wall 15 of the rear shield 14 extends outward to form a plurality of second extensions 155. In this embodiment, the The second extensions 155 are located on the upper side wall 151 and the lower side wall 152, respectively.

As shown in FIG. 2, the infrared generation net 20 is disposed between the front cover 12 and the rear cover 14 of the support assembly 10 and faces the inner surface 121 a of the cover plate 121; A plurality of fixing portions 22 (refer to FIG. 3) are formed extending outward from the periphery, each fixing portion 22, each first extending portion 135 corresponds to each second extending portion 155, and each fixing portion 22 is interposed between Between each of the first extending portion 135 and each of the second extending portion 155, the way of interposing may be bolt or nut combination, or welding combination, so that the front cover 12 and the infrared generating net 20 are fixed to the rear Masking 14. The infrared generating net 20 is heated by flame to generate infrared rays and penetrates through the holes 124 of the front cover 12; the infrared generating net 20 may be made of ceramic, metal, alloy, etc., in this embodiment, it is iron-chromium aluminum alloy .

As shown in FIG. 1, the at least one burner 30 has a fire exit 32, the fire exit 32 is located below the opening 122 of the cover plate 121, and the infrared generating net 20 corresponds to the fire exit 32; the at least one burner 30 combustion gas produces a flame through the fire outlet 32 and acts on the infrared generating net 20; in this embodiment, the number of burners 30 is plural, and the flame generated by each fire outlet 32 of each burner 30 passes The opening 122 of the front cover plate 121 causes the infrared generating net 20 corresponding to each of the fire exits 32 to be heated by flame. However, in practice, as long as the flame can be burned on the infrared generating net 20, the burner 30 can also extend into the opening 122 so that the position of the fire exit 32 is located between the front shield 12 and the rear shield 14 In one of the chambers and close to the infrared generating network 20.

As shown in FIG. 2, the infrared reflecting plate 40 is located between the rear cover 12 and the infrared generating net 20. The infrared reflecting plate 40 has a flat and rectangular main board 401 (as shown in FIG. 3 ). The infrared reflecting plate 40 is inclined and the main board 401 corresponds to the infrared generating net 20. The infrared reflecting plate 40 further includes a ring wall 41 connected to the periphery of the main board 401. The ring wall 41 of the infrared reflecting plate 40 has An upper side wall 411 is connected to the top edge of the main board 401, and the height of the ring wall 41 of the infrared reflector 40 is less than the height of the ring wall 15 of the rear cover 14. The infrared reflecting plate 40 has a reflecting surface 401a and an outer surface 401b, the reflecting surface 401a faces the infrared generating net 20, and the reflecting surface 401a is used to reflect the infrared generated by the infrared generating net 20 to pass the reflected infrared The infrared generating net 20 passes through the holes 124 of the front cover 12. The material of the infrared reflecting plate 40 is metal, for example, stainless steel.

The reflecting surface 401a of the infrared reflecting plate 40 has a reflecting structure 42 including a plurality of convex portions 421 and a plurality of embossings 422 between the convex portions 421, the convex portions 421 and the embossing 422 is formed by rolling a metal plate, and then folding the metal plate with the reflective structure 42 into a shape with a main board 401 and a ring wall 41, so that the entire infrared reflective plate 40 is covered with the reflective structure 42. In this embodiment, the convex portions 421 are tapered and arranged in a matrix (refer to FIGS. 4 and 5) or arranged in a misaligned manner (refer to FIG. 6 ).

The combustion device of this embodiment further includes a support 50. As shown in FIG. 3, the support 50 has an upper support plate 52, an intermediate support 54 plate, a lower support plate 56, and a fixing member 58. The support 50 is used to The relative positions of the front shroud 12, the rear shroud 14, and the plurality of burners 30 are fixed. The intermediate support plate 54 is fixed between the upper support plate 52 and the lower support plate 56, and the fixing member 58 fixes the rear shield 14 on the upper surface by passing a fixing hole 59 near the center of the upper support plate 52 On the support plate 52, the plurality of burners 30 are fixed on the lower support plate 56.

Therefore, as shown in FIG. 7, when the flame generated by the fire outlets of the plurality of burners 30 heats the infrared generating net 20, the infrared generating net 20 is heated and generates infrared rays, and a part of the infrared rays passes through the front cover 12. The holes 124 are transmitted through, and another part of the infrared rays is emitted toward the reflection surface 401a of the infrared reflection plate 40, and the reflection surface 401a reflects the other part of the infrared rays through the reflective structure 42 and travels in the direction of the front cover 12, And the reflective structure 42 allows the reflected infrared rays to be evenly scattered on the infrared generating net 20, so that the infrared generating net 20 can be heated by the reflected infrared rays again to enhance the reflection effect. In practice, the reflective surface 401a may be flat without the reflective structure 42. The reflective surface 401a preferably has the reflective structure 42 to achieve the effect of uniformly reflecting infrared rays to the infrared generating network 20. In addition, the front shield 12 is also heated by the flame generated by the fire exit 32, so infrared rays will be generated and the flame will also pass through the hole 124 to form an open flame.

It is worth mentioning that, since the front shield 12 is in the shape of a flat plate, the direction of the infrared light generated by the front shield 12 can be substantially perpendicular to the flat plate-shaped cover plate 121, so that the infrared light scattered by the combustion device 100 Acting on the object uniformly in the same direction, the infrared intensity received by the object per unit area is more uniform, so as to effectively solve the problem that the intensity of the scattered infrared light is uneven due to the arc structure of the conventional combustion device.

In addition, the density of the convex portions of the reflective surface 401 a of the infrared reflecting plate 40 may also be different, wherein the density of the convex portions of the ring wall 41 is greater than the density of the convex portions of the main board 104. In this way, the burning device 100 can also increase the infrared storage capacity near the ring wall 41 due to the density of the convex portions of the ring wall 41, and thus the infrared intensity generated by the infrared generating net 20 tends to be more inclined average.

Furthermore, the density of the convex portions in an intermediate region of the main board 401 can also be made smaller than the density of the convex portions in one side region of the main board 401, so that the infrared storage capacity can be transferred from the intermediate region of the main board to the The side area is gradually strengthened to strengthen the heating degree of the infrared generating network in the side area, so that the intensity of the infrared generated by the infrared generating network tends to be more even.

FIG. 8 shows an infrared reflecting plate 60 of a combustion device according to a second preferred embodiment of the present invention, which is based on the infrared reflecting plate 40 of the first embodiment. The difference is that the upper part of the infrared reflecting plate 60 There are a plurality of holes 614 near the side wall 611 or the top edge of the main board 601. In this way, when the flame generated by the fire outlet 32 flows along the reflecting surface 601a of the infrared reflecting plate 60 toward the top edge of the infrared reflecting plate 60, the holes 614 can help to flow to the infrared reflecting plate 60 The flame near the top edge of the rim bursts out of the holes 614 to form an open flame, which makes the gas flow more smoothly. With the holes 614, the flame can heat the infrared generating net 20 and the front cover 12 more uniformly, so that the intensity of the infrared rays emitted by the burning device 100 is more uniform. In addition, the upper side wall 611 of the infrared reflecting plate 60 and the top edge of the main board 601 can also have multiple holes 614 at the same time.

As shown in FIG. 9, it is an infrared reflecting plate 70 of a combustion device 100 according to a third preferred embodiment of the present invention. The infrared reflecting plate 70 has a reflecting surface 701a and an outer surface 701b, and the main board 701 of the infrared reflecting plate 70 is The infrared reflecting plate 70 is inclined, and the infrared reflecting plate 70 has a plurality of holes 714 near the top edge of the infrared reflecting plate 70 to communicate the reflecting surface 701a and the outer surface 701b of the infrared reflecting plate 70. By the arc design of the main board 701, the flame generated by the fire outlet 32 can smoothly flow along the reflective surface 701a of the arc-shaped main board 701 to the vicinity of the top edge of the main board 701, and the flame can also produce the infrared rays more uniformly The mesh 20 and the front cover 12 are heated to make the intensity of the infrared rays emitted by the combustion device 100 uniform.

FIG. 10 shows an infrared reflecting plate 80 of a combustion device according to a fourth preferred embodiment of the present invention. The infrared reflecting plate 80 has a reflecting surface 801a and an outer surface 801b, and the infrared reflecting plate 80 is directed from the reflecting surface 801a The outer surface 801b is recessed in an arc shape. In this embodiment, the infrared reflecting plate 80 is formed by bending a metal plate into a concave arc shape, and at least one gap 716 is formed at a portion where the metal plates overlap to communicate the reflecting surface 801a of the infrared reflecting plate 80 with the outer The surface 801b; the infrared reflecting plate 80 is disposed between the rear cover 14 and the infrared reflecting plate 80; by the arc-shaped design of the reflecting surface 801a, the flame generated by the fire exit can be more smoothly along the infrared The reflecting surface 801 a of the reflecting plate 80 flows to the vicinity of the top edge of the infrared reflecting plate 80. The design of the gap allows part of the air flow to pass, so that the flow of gas is smoother. The flame can also heat the infrared generating net 20 and the front shield 12 more uniformly, so that the intensity of the infrared rays emitted by the burning device 100 is more uniform and increased.

In addition, FIG. 11 shows an infrared reflecting plate 90 of a combustion device according to a fifth preferred embodiment of the present invention. In practical implementation, the reflective structure 92 of the infrared reflecting plate 90 may have a convex portion 921 in a parallel shape, and The long axis of the convex portion 921 and the long axis of the embossings 922 extend from the one end 90a of the infrared reflecting plate 90 in a predetermined direction to the opposite end 90b.

According to the above, when the combustion device of the present invention generates infrared rays scattered from the holes of the front shield and the front shield itself, the flat shield plate of the front shield will be emitted in the same direction, making it heated by infrared rays The intensity of heat per unit area of the object is more uniform.

In addition, through the design of the reflective structure of the infrared reflector, the flame can be more uniformly heated on the infrared generating grid and the front shield, maintaining the high temperature of the infrared generating grid, and making the combustion device produce higher intensity and more uniform intensity Infrared.

The above are only a few of the preferred and feasible embodiments of the present invention, and any equivalent changes in the application of the present specification and the scope of patent application should be included in the patent scope of the present invention.

[this invention] 100: Combustion device 10: Support assembly 12: front mask 121: Cover plate 121a: outer surface 121b: inner surface 122: opening 124: Hole 13: Ring wall 131: upper side wall 132: Lower side wall 133: Side wall 134: Hole 135: First extension 14: Rear mask 141: Rear panel 15: ring wall 151: upper side wall 152: Lower side wall 153: Side wall 154: Hole 155: Second extension 20: Infrared generation network 22: fixed part 30: burner 32: Outlet 40: Infrared reflector 401: Motherboard 401a: reflective surface 401b: outer surface 41: Ring wall 411: upper side wall 42: Reflective structure 421: convex part 422: Embossing 50: bracket 52: Upper support plate 54: intermediate support plate 56: Lower support plate 58: fixings 59: fixing hole 60: Infrared reflector 601: Motherboard 601a: reflective surface 601b: outer surface 611: Upper side wall 614: Hole 70: Infrared reflector 701: Motherboard 701a: reflective surface 701b: outer surface 714: Hole 716: Gap 80: Infrared reflector 801a: reflective surface 801b: outer surface 90: Infrared reflector 92: Reflective structure 921: convex part 922: Embossing 90a: one end 90b: the other end

FIG. 1 is a perspective view of a combustion device according to a first preferred embodiment of the present invention. Figure 2 is a cross-sectional view of the combustion device of the above preferred embodiment. Figure 3 is an exploded view of the combustion device of the above preferred embodiment. FIG. 4 is a top view of the reflective structure of the infrared reflectors arranged in a matrix in the above preferred embodiment. Fig. 5 is a cross-sectional view taken along the line A-A' of Fig. 4. FIG. 6 is a top view of the reflective structure of another infrared reflecting plate arranged in a misaligned manner in the above preferred embodiment. Fig. 7 is a schematic diagram of the above-described preferred embodiment when infrared rays are emitted from the combustion device. FIG. 8 is a perspective view of an infrared reflecting plate according to a second embodiment of the invention 9 is a perspective view of an infrared reflecting plate according to a third embodiment of the invention 10 is a perspective view of an infrared reflecting plate according to a fourth embodiment of the invention FIG. 11 is a perspective view of an infrared reflecting plate according to a fifth embodiment of the invention.

100: Combustion device

10: Support assembly

12: front mask

121: Cover plate

121a: outer surface

122: opening

124: Hole

13: Ring wall

131: upper side wall

132: Lower side wall

133: Side wall

134: Hole

135: First extension

14: Rear mask

15: ring wall

151: upper side wall

154: Hole

155: Second extension

20: Infrared generation network

22: fixed part

30: burner

32: Outlet

52: Upper support plate

54: intermediate support plate

Claims (17)

A burning device, including: At least one burner having a fire exit, the at least one burner burns gas and generates a flame through the fire exit; A supporting assembly, comprising a front cover and a rear cover, the front cover having a cover plate in the shape of a flat plate, the cover plate having a plurality of holes communicating an outer surface and an inner surface of the cover plate; The rear shield corresponds to the front shield. The rear shield has a rear plate and a ring wall connected to the periphery of the rear plate. The ring wall includes an upper side wall, a lower side wall, and two side walls. The lower side walls are oppositely arranged, the two side walls are oppositely arranged, and each side wall is located between the upper side wall and the lower side wall, and the lower side wall and the two side walls are respectively closed; An infrared generating network is disposed on the supporting component and corresponds to the fire exit and is located between the front cover and the rear shield; the infrared generating network faces the inner surface of the cover plate; the infrared generating network is protected by the at least one The flame generated by the burner is heated to generate infrared rays, and the infrared rays penetrate through the holes. The combustion device according to claim 1, wherein the cover plate is rectangular. The burning device according to claim 2, wherein the front shield includes an upper side wall, the upper side wall of the front shield is connected to the top edge of the cover plate, the upper side wall of the front shield has a plurality of holes; the rear shield The upper side wall of the cover is located above the upper side wall of the front shield. The burning device according to claim 3, wherein the cover plate has an opening, the opening is located on the opposite side of the top edge; the fire exit of the at least one burner is located below the opening. The combustion device according to claim 3, wherein the upper side wall of the rear shield has a plurality of holes. The combustion device according to claim 2, wherein the front cover includes two side walls, the two side walls of the front cover are connected to two side edges of the cover plate, and each of the side walls of the front cover Located under each side wall of the rear shield, each side wall of the front shield has a plurality of holes. The combustion device according to claim 1, wherein the rear plate has a flat plate shape. The combustion device according to claim 1, wherein the front shield has a ring wall connected to the periphery of the cover plate; the ring wall of the front shield extends outward to form a plurality of first extensions, and the rear shield The ring wall extends outward to form a plurality of second extensions, and each of the first extensions corresponds to each of the second extensions; the periphery of the infrared generating net extends outward to form a plurality of fixing parts, each of which is fixed The portion is interposed between each of the first extending portions and each of the second extending portions. The burning device according to claim 1, comprising an infrared reflecting plate located between the rear cover and the infrared generating net; the infrared reflecting plate has a reflecting surface, the reflecting surface facing the infrared generating net. The combustion device according to claim 9, wherein the reflective mask has a reflective structure, the reflective structure includes a plurality of convex portions and a plurality of embossed portions between the convex portions. The combustion device according to claim 10, wherein the convex portions are arranged in a matrix or in a staggered arrangement. The combustion device according to claim 10, wherein each of the convex portions is tapered. The combustion device according to claim 10, wherein the convex portions are parallel and elongated. The burning device according to claim 9, wherein the infrared reflecting plate has at least one slit. The combustion device according to claim 9, wherein the infrared reflecting plate has a plurality of holes. The burning device according to claim 10, wherein the infrared reflecting plate includes a main board and a ring wall connected to the peripheral edge of the main board, and the density of the convex portions on the ring wall of the infrared reflecting plate is greater than that of the main board The density of these protrusions. The burning device according to claim 10, wherein the infrared reflecting plate includes a main board, and the main board has an intermediate region and a peripheral region located at the periphery of the intermediate region, and the density of the convex portions in the intermediate region is less than The density of the protrusions in the peripheral area of the motherboard.

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