CN110873331A - Combustion apparatus - Google Patents

Abstract

A combustion device includes at least one burner, a support assembly, and an infrared generating net; wherein the burner has a fire outlet; the infrared generating net is arranged on the rear shield of the support assembly and corresponds to the fire outlet, and the infrared generating net is heated by the flame generated by the fire outlet. Thus, a heat source that generates open flames and infrared rays is formed to effectively increase the heating intensity and achieve the purpose of uniform heating.

Description

burner

【Technical field】

The present invention relates to heating devices; in particular, it refers to a burning device that uses infrared rays to heat objects.

【Background technique】

Generally speaking, the gas burning device burns the gas to generate a flame, and the flame is used to heat the 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 object as a whole.

In order to solve the above problems, an infrared heat source device is known, such as the combustion device in Chinese Patent No. M563762, which uses the characteristic that infrared rays can penetrate the object, so that the surface and the interior of the object can be heated at the same time. In this patent, the burner 42 outputs flame, so that the infrared generating net 542 and the cover plate 84 are heated to generate infrared rays, and the arc-shaped cover plate 84 scatters the infrared rays, so that the infrared rays pass through the holes of the cover plate 84 484 scatters outward. However, the cover plate will cause the infrared rays emitted by the infrared generating net to be blocked by the cover plate 84, 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 relatively limited.

Therefore, the design of the existing infrared heat source device is still imperfect, and there is still room for improvement.

[Content of the invention]

Therefore, the object of the present invention is to provide a burning device that enables objects to receive more infrared rays.

In order to achieve the above purpose, a burning device provided by the present invention includes at least one burner with a fire outlet, the at least one burner burns gas and generates flame through the fire outlet; an infrared generating net corresponds to the fire outlet, The infrared generating net has a first surface and a second surface opposite to each other, and the first surface is exposed to the outside; the infrared generating net is heated by the flame generated by the at least one burner to generate infrared; an infrared reflecting plate, The infrared reflection plate is disposed outside the second surface of the infrared generating net, and has a reflecting surface facing the second surface.

The effect of the present invention is that by directly exposing the infrared generating net to the outside, when the infrared rays scattered by the burning device act on the object, the infrared intensity per unit area of the object will not be limited by the cover plate.

【Description of drawings】

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

FIG. 2 is a cross-sectional view of a combustion device having the above preferred embodiment of the present invention.

FIG. 3 is an exploded view of the combustion device of the present invention having the above-mentioned preferred embodiment.

4 is a perspective view of a combustion device according to a second embodiment of the present invention.

5 is a cross-sectional view of a combustion apparatus according to a second embodiment of the present invention.

FIG. 6 is an exploded view of a combustion device according to a second embodiment of the present invention.

7 is a perspective view of an infrared generating net according to a second embodiment of the present invention.

8 is a cross-sectional view of an infrared generating net according to a second embodiment of the present invention.

9 is a top view of the reflection structure of the infrared reflection plate arranged in a matrix according to the second embodiment of the present invention.

Fig. 10 is a cross-sectional view taken along the line A-A' in Fig. 6 .

11 is a top view of the reflection structure of another infrared reflecting plate arranged in a dislocation arrangement according to the second embodiment of the present invention.

12 is a perspective view of an infrared generating net according to a third embodiment of the present invention.

13 is a perspective view of an infrared generating net according to a fourth embodiment of the present invention.

FIG. 14 is a schematic diagram of an infrared generating network according to a fifth embodiment of the present invention.

15 is a schematic diagram of an infrared generating network according to a sixth embodiment of the present invention.

16 is a cross-sectional view of an infrared generating net according to a seventh embodiment of the present invention.

17 is a cross-sectional view of an infrared generating net according to an eighth embodiment of the present invention.

18 is a perspective view of an infrared generating net according to a ninth embodiment of the present invention.

FIG. 19 is a cross-sectional view of a burning device for an infrared generating net according to a ninth embodiment of the present invention.

FIG. 20 is a perspective view of a combustion device according to a tenth preferred embodiment of the present invention.

【Detailed ways】

In order to explain the present invention more clearly, the preferred embodiments are now given and described in detail in conjunction with the drawings as follows. Please refer to FIG. 1 to FIG. 3 , which is a combustion device 100 according to a first preferred embodiment of the present invention. The combustion device 100 includes a support assembly 10 , an infrared generating net 24 , an infrared reflecting plate 40 and at least one burner 30, of which:

As shown in FIG. 3 , the support assembly 10 includes a rear shield 14 , the rear shield 14 is inclined and made of metal, and the rear shield 14 has a flat and rectangular rear plate 141 , and the rear shield 14 includes A ring wall 15 is connected with the peripheral edge of the rear panel 14. The ring wall 15 has an upper side wall 151 and a lower side wall 152. The upper side wall 151 is connected with the top edge of the rear panel 141. The upper side wall 151 has A plurality of holes 154 communicate with an inner surface and an outer surface of the annular wall 15 of the rear shield 14. The annular wall 15 of the rear shield 14 extends outward to form a plurality of extension portions 155. In this embodiment, these extension portions 155 They are respectively located on the upper side wall 151 and the lower side wall 152 .

As shown in FIG. 3 , the infrared generating mesh 24 is made of metal, and in this embodiment, it is an iron-chromium-aluminum alloy. The infrared generating net 24 includes a flat and rectangular net body 26, the net body 26 has a first surface 262 and a second surface 264 opposite to each other, and a peripheral edge; the first surface 262 is not shielded Covered and exposed to the outside, the peripheral edge has four edges, of which two opposite edges form a first portion 26a and a second portion 26b. In actual production, the peripheral edge of the mesh body 26 may also be circular, and the peripheral edge of the mesh body 26 is divided into two halves with a circular diameter, wherein the first part 26a and the second part 26b are respectively located at on the two halves. In addition, the infrared generating net 24 is connected to the extension parts 155 , and the connection method can be bolts, nuts, or welding, so that the infrared generating net 26 is fixed on the rear shield 14 .

In addition, the net body 22 of the infrared generating net 20 provides a shielding ratio per unit area, and the shielding ratio ranges from 43% to 64%. In this example, the mesh has a wire diameter of 0.2 mm and has 1600 meshes per square inch (ie, 40×40=1600); therefore, it can be deduced that these meshes provide An opening area is 302.76mm ² , the formula is (25-(40×0.2)) ² =302.76, and the shielding rate provided by the mesh body 22 per unit area is 53.07%, and the formula is (25.4 ² -302.76) /(25.4 ² )×100%=53.07%. Therefore, preferably, the shielding rate per unit area of the mesh body 22 is about 53%-54%.

As shown in FIG. 1 , the at least one burner 30 has a fire outlet 32, the fire outlet 32 is located near the first portion 26a of the infrared generating net 24, and the first surface 262 corresponds to the fire outlet 32; the fire outlet 32; At least one burner 30 burns gas through the fire outlet 32 to produce a flame, which acts on the infrared generating net 24, and the flame flows along the direction of the first part 26a toward the second part 26b; in this embodiment, the combustion The number of burners 30 is plural, and the flames generated by the fire ports 32 of the burners 30 make the infrared generating nets 24 corresponding to the fire ports 32 heated by the flames. However, in actual production, as long as the flame can burn on the infrared generating net 24 , the position of the flame outlet 32 of the burner 30 only needs to be close to the infrared generating net 24 .

As shown in FIG. 2 , the infrared reflector 40 is disposed between the rear shield of the support assembly 10 and the infrared generating net 24 . The infrared reflector 40 has a flat and rectangular main board 401 (as shown in FIG. 3 ). shown), the infrared reflecting plate 40 is inclined and the main board 401 is corresponding to the infrared generating net 24, and the infrared reflecting plate 40 further includes a ring wall 41 connected with the periphery of the main board 401, the infrared reflecting plate 40 is The ring wall 41 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 reflector 40 is smaller than the height of the ring wall 15 of the rear shield 14; the infrared reflector 40 has a reflecting surface 401a and an outer surface 401b; the reflecting surface 401a faces the second surface 264 of the infrared generating net 24, the reflecting surface 401a is used to reflect the infrared generated by the infrared generating net 24, so that the reflected infrared is generated by the infrared The net 24 is exposed. The infrared reflector 40 is made of metal, such as stainless steel.

The combustion device of this 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 for The rear shield 14 is fixed opposite to the position of the plurality of burners 30 . The middle 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 to the upper support plate through a fixing hole 58 near the center of the upper support plate 52 52 , the plurality of burners 30 are fixed on the lower support plate 56 .

Therefore, as shown in FIG. 2, when the flames generated by the fire ports of the plurality of burners 30 are heated on the infrared generating net 24, the infrared generating net 24 is heated by an open flame to generate infrared rays, and a part of the infrared rays are directly transmitted from the first surface 262 is emitted outward, and another part of the infrared rays is emitted towards the reflecting surface 401a of the infrared reflecting plate 40, and the reflecting surface 401a reflects the other part of the infrared rays and travels in the direction of the infrared generating net 24 to accumulate more infrared rays generated by the infrared rays. The heat energy on the infrared generating net 24 increases the heating degree of the infrared generating net 24, so that the temperature rises to generate more infrared rays, and then passes through the infrared generating net 24 to increase the infrared intensity of the burning device 100 acting on the heated object.

4 , 5 and 6 show a combustion device according to a second preferred embodiment of the present invention. The combustion device is basically the same as the combustion device 100 of the first embodiment. The mesh body of the infrared generating net 20 is integrally folded to form a plurality of corrugations 226. Each corrugation 226 extends in parallel from the first portion 22a to the second portion 22b. Please refer to FIG. 8. The cross-sectional shape of these corrugations 226 is wavy. Wherein, the corrugations 226 have a plurality of first wave crests 222a on the first surface 222, the first wave crests 222a are located on a first reference surface 222c, and the corrugations 226 have a plurality of second wave crests on the second surface 224 224b, the second wave peaks 224b are located on a second reference surface 222c. In this second embodiment, the first reference surface 222c and the second reference surface 224c are both plane reference surfaces. In other words, the first wave peaks 222a is coplanar, and the second wave peaks 224b are coplanar, but not limited thereto, the first wave peaks 222a may not be coplanar, and the second wave peaks 224b may not be coplanar.

In addition, since the infrared generating net 20 is wavy, the corrugations 226 extending from the first part 22a to the second part 22b can also make the flame generated by the fire outlet 32 more smoothly along the corrugations 226. The first part 22a flows to the second part 22b, so that the infrared generating net 20 can be heated by the flame more evenly, so that the intensity of the infrared rays emitted by the burning device 100 is further increased. In this way, the range of the infrared rays scattered by the combustion device 100 that can be heated will not only be further expanded, but also the intensity of the infrared rays generated per unit area will be higher. Therefore, using the burning device 100 with the wave-shaped infrared generating net 20 can not only solve the problem of limited heating range, but also make the intensity of the infrared heat source higher and achieve better temperature control.

It is additionally mentioned that, in this embodiment, the reflecting surface 401 a of the infrared reflecting plate 40 has a reflecting structure 42 , and the reflecting structure 42 includes a plurality of protrusions 421 and a plurality of pressure points between the protrusions 421 . The lines 422, these convex parts 421 and the embossing 4422 are formed by rolling a metal plate, and then the metal plate with the reflecting structure 42 is folded into the shape of the main board 401 and the ring wall 41, so that the entire infrared reflecting plate 40 is covered The reflective structure 42 is filled. In this embodiment, the convex portions 421 are tapered and arranged in a matrix (refer to FIGS. 9 and 10 ) or in a staggered arrangement (refer to FIG. 11 ). The reflecting structure 42 is used for reflecting the infrared rays incident on the reflecting surface 401a, so that the infrared rays incident on the reflecting surface 401a through the infrared generating net 20 can be scattered again on the infrared generating net 20, so that the infrared generating net 20 Receiving the reflected infrared rays, the temperature of the infrared generating net 20 is further increased and more heat energy is accumulated, so as to increase the infrared generating efficiency of the infrared generating net 20 .

12 shows an infrared generating net 60 according to a third preferred embodiment of the present invention, which has substantially the same structure as the second embodiment, except that the net body 62 of the infrared generating net 60 has at least one fixing bar 628. In this embodiment, the number of the at least one fixing bar 628 is plural, and the fixing bars 628 can pass through the first surface 622 and the first surface 622 between the first wave peaks 622 a and the second wave peaks 624 b through the corrugations 626 . The two surfaces 624 are connected to the infrared generating net 60 . In addition, the fixing bars can also be directly connected to the infrared generating mesh 60 by welding without passing through the first surface 622 and the second surface 624 between the first wave peaks 622a and the second wave peaks 624b. On the first wave crests 622a of the first reference surface 622c or on the second wave crests 624b of the second reference plane 624c. Through the implementation of this embodiment, the net body 62 can be fixed by the fixing bars 628, thereby reducing the chance of the infrared generating net 60 being deformed.

13 shows the infrared generating net 63 according to the fourth preferred embodiment of the present invention, which has substantially the same structure as the second embodiment, except that the cross section of the corrugations 656 of the infrared generating net 63 is zigzag.

FIG. 14 shows an infrared generating net 66 according to a fifth preferred embodiment of the present invention, which has substantially the same structure as the second embodiment, except that the distances between the first wave peaks 682a of the net body 68 are different from those of the first wave peaks 682a. The distance between the two crests 684b gradually increases from the first portion 68a toward the second portion 68b, so that the mesh body 68 is fan-shaped, so that the flame generated by the fire outlet 32 can pass along the corrugations 686 from the first portion 68a. The flame flows to the second part 68b to expand the range of the flame, so that the range of infrared rays emitted by the combustion device 100 is larger. In actual production, the first wave peaks 682a may be located on the first reference surface 682c, the second wave peaks 684b may be located on the second reference surface 684c, and the first reference surface 682c and the second reference surface 684c may be flat or curved. In addition, the second portion 68b can also be located near the fire outlet 32, so that the flame generated by the fire outlet 32 can flow along the corrugations 686 from the second portion 68b to the first portion 68a.

15 shows an infrared generating net 70 according to a sixth preferred embodiment of the present invention, which has substantially the same structure as the fourth embodiment, except that the cross section of the corrugations 726 of the infrared generating net is zigzag.

16 shows the infrared generating net 73 according to the seventh preferred embodiment of the present invention, the net body 75 has a middle part 755a and two side parts 755b, the two side parts 755b are respectively located on opposite sides of the middle part 755a. The distance between the first wave crests 752a to the second wave crests 754b of the middle portion 755a is greater than the distance between the first wave crests 752a to the second wave crests 754b of the side portions 755b, so that the infrared generating net 73 faces outward from The scattering angle of the infrared rays emitted from the first surface 752 is larger, so that the heating range of the combustion device 100 is wider. In actual production, the first wave peaks 752a may be located on the first reference surface 752c, the second wave peaks 754b may be located on the second reference surface 754c, the first reference surface 752c may be a curved surface, and the second reference surface 754c may be be flat or curved.

FIG. 17 shows the infrared generating net 76 according to the eighth preferred embodiment of the present invention. The first reference surface 782c and the second reference surface 784c are both curved surfaces, and the effect can also make the infrared light emitted by the infrared generating net 76 scatter. The larger the angle, the wider the heating range of the combustion device 100 is.

FIG. 18 shows an infrared generating net 80 according to a ninth preferred embodiment of the present invention. In addition to a net body 82, the infrared generating net 80 also includes a blocking net 827. The blocking net 827 is correspondingly disposed on the second portion 82b. , and the mesh surface 827a of the blocking net 827 and the long axis of each of the first wave crests 822a of the mesh body 82 have an included angle θ. In this embodiment, the included angle θ is not less than 90 degrees, preferably 90 to 135 degrees. between, and the blocking net 827 can be connected to the second part 82b by welding, locking, or binding. Besides, the blocking net and the net body can also be folded out in the vicinity of the second portion 82b of the infrared generating net 80 by means of integral bending. In addition, the blocking net 827 can be applied to the net bodies of the first to eighth embodiments; and the integral bending method can also be applied to the infrared generating nets described in the first to eighth embodiments.

As shown in FIG. 19 , due to the design of the blocking net 827, the infrared generating net 80 is heated by the open flame of the fire outlets 32, and the open flame flows from the first part 82a to the second part 82b along the corrugations 826, the The blocking net 827 blocks the open flame that has flowed to the vicinity of the second part 82b, so that the heat energy of the open flame can be more accumulated on the infrared generating net 80, so that the intensity of the infrared rays generated by the burning device 100 is further increased.

FIG. 20 is a burning device according to a tenth preferred embodiment of the present invention. The burning device has substantially the same structure as the first embodiment. The difference is that the infrared generating net 90 of the tenth embodiment is close to the first part 92a. There are multiple holes nearby. Therefore, the holes are also located near the fire outlet 32, so that the flame generated by the fire outlet 32 can penetrate through the first surface 982 of the infrared generating net 90 to the second surface 984, so that the open flame can follow the The infrared generating net 90 flows from the first portion 92a to the second portion 92b, so as to increase the intensity of the infrared rays emitted near the second portion 92b of the infrared generating net 90, so that the overall intensity of the infrared rays generated by the infrared generating net 90 is higher. rise.

In addition, the following describes the infrared generating net of the eleventh preferred embodiment of the present invention. The structure of this embodiment is substantially the same as that of the tenth embodiment. The difference is that the infrared generating net has a A first area and a second area, the first area and the second area have different shielding rates, wherein the first area is close to the fire outlet 32 and has a smaller shielding rate, and the second area is far from the fire outlet 32 and has a large occlusion rate. Through the design of different shielding rates, when the infrared generating net 90 is heated by the open flames of the fire ports 32, the open flames generated by the fire ports 32 can more easily penetrate the infrared rays from the first area with a smaller shielding rate The first surface 982 to the second surface 984 of the generating net flows along the infrared generating net 90 from the first part 92a to the second part 92b, so that the open flame can be better due to the relatively high temperature of the second area. With a large shielding rate, more heat energy generated by the open flame is accumulated on the infrared generating net 90, and infrared rays with higher intensity are generated, so as to increase the intensity of the infrared rays emitted near the second part 92b of the infrared generating net 90, so that the The intensity of the infrared rays generated by the infrared generating net 90 as a whole is further increased.

The above description is only a preferred feasible embodiment of the present invention, and all equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the patent scope of the present invention.

【Symbol Description】

[this invention]

100 burner

10 Support components

14 rear shield 141 rear plate

15 Ring Walls

151 Upper side wall 152 Lower side wall 154 Holes

155 extension

24 Infrared generating net

26 mesh body 266 ripple

262 first surface 264 second surface

26a Part 1 26b Part 2

262c first reference surface 264c second reference surface

30 burners

32 fire outlet

40 Infrared Reflector

401 main board 401a reflective surface 401b outer surface

41 Ring wall 411 Upper side wall

42 Reflective structure 421 Convex 422 Embossing

50 brackets

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

58 Fixing piece 59 Fixing hole

20 Infrared generation net

22 mesh body 226 corrugated

222 first surface 224 second surface

22a Part 1 22b Part 2

222a first peak 224b second peak

222c first reference surface 224c second reference surface

60 Infrared generation net

62 mesh body 626 corrugated 628 fixed strip

622 first surface 624 second surface

62a Part 1 62b Part 2

622a first peak 624b second peak

622c first reference surface 624c second reference surface

63 Infrared generation net

65 mesh body 656 corrugated

66 Infrared generation net

68 mesh body 686 ripple

682 first surface 684 second surface

68a Part 1 68b Part 2

682a first peak 684b second peak

682c first reference surface 684c second reference surface

70 Infrared generation net

72 mesh body 726 ripple

73 Infrared generation net

75 mesh body

752 first surface 754 second surface

752a 1st crest 754b 2nd crest

752c first reference surface 754c second reference surface

755a middle part 755b side part

76 Infrared generation net

78 net body

782 first surface 784 second surface

782a first peak 784b second peak

782c first reference surface 784c second reference surface

80 Infrared generation net

82 mesh body 826 corrugated 827 blocking mesh 827a mesh surface

82a Part 1 82b Part 2

822a first peak 824b second peak

90 Infrared generation net

92 mesh body 929 holes

92a Part 1 92b Part 2

982 first surface 984 second surface

θ included angle

Claims (22)

1. A combustion apparatus, comprising:

at least one burner with a fire outlet, wherein the at least one burner burns gas and generates flame through the fire outlet;

the infrared generating net corresponds to the fire outlet and is provided with a first surface and a second surface which are opposite, and the first surface is exposed outside; the infrared generating net is heated by the flame generated by the at least one burner to generate infrared rays;

an infrared reflecting plate is arranged outside the second surface of the infrared generating net and provided with a reflecting surface facing the second surface.

2. The combustion apparatus as claimed in claim 1, wherein the infrared ray generating net comprises a net body having a first portion and a second portion at two opposite sides, and the net body is integrally bent to form a plurality of corrugations, each of the corrugations extending from the first portion to the second portion; the net body is heated by the flame to generate infrared rays.

3. The combustion apparatus as claimed in claim 2, wherein the flame outlet of the at least one burner is directed in the direction of extension of at least a portion of the corrugations.

4. A burner apparatus as in claim 2, wherein the corrugations are undulating in cross-section.

5. A burner apparatus as in claim 2, wherein the corrugations are saw-toothed in cross-section.

6. The combustion apparatus as claimed in claim 2, wherein the corrugations have first peaks on the first surface, the first peaks lying on a first reference plane, the corrugations have second peaks on the second surface, the second peaks lying on a second reference plane.

7. The combustion apparatus of claim 6 wherein the first reference surface is curved.

8. The combustion apparatus of claim 6 wherein the first reference surface is a plane.

9. The combustion apparatus as claimed in claim 2, wherein the net body has a middle portion and two side portions, the two side portions being located on opposite sides of the middle portion, the corrugations having a plurality of first peaks on the first surface and the corrugations having a plurality of second peaks on the second surface; the distance between the first peaks and the second peaks of the middle part is greater than the distance between the first peaks and the second peaks of the side parts.

10. The combustion apparatus as claimed in claim 2, comprising at least one retaining strip connected to the corrugations.

11. The combustion apparatus of claim 2 including at least one retaining strip extending through said corrugations.

12. The combustion apparatus as claimed in claim 2, wherein the corrugations have a plurality of first peaks on the first surface, the corrugations have a plurality of second peaks on the second surface, and the spacing between the first peaks and the spacing between the second peaks become larger from the first portion toward the second portion.

13. A combustion unit according to claim 2, wherein the corrugations extend in the same direction.

14. The combustion apparatus as claimed in claim 2, wherein the corrugations have a plurality of first peaks on the first surface, the infrared generating net comprises a baffle net connected to the second portion, the baffle net having an angle with a major axis of each of the first peaks of the net body.

15. The combustion apparatus of claim 14 wherein the included angle is not less than 90 degrees.

16. The combustion apparatus as claimed in claim 2, wherein the net body is rectangular and has four edges at its periphery, two of the opposite edges forming the first portion and the second portion.

17. The combustion apparatus as claimed in claim 2, wherein the net body has a circular periphery, and the periphery is divided into two halves, and the first portion and the second portion are respectively located on the two halves.

18. The combustion apparatus as claimed in claim 1, wherein the infrared reflecting plate has a reflecting structure comprising a plurality of protrusions and embossings between the protrusions.

19. The combustion apparatus as claimed in claim 1, wherein the infrared ray generating net comprises a net body having a first portion and a second portion at opposite sides, the first portion being closer to the fire outlet than the second portion, and the infrared ray generating net having a plurality of holes close to the first portion.

20. The combustion apparatus as claimed in claim 1, wherein the infrared ray generating net has a shielding rate per unit area, the shielding rate ranging from 43% to 64%.

21. The combustion apparatus as claimed in claim 20, wherein the infrared ray generation net has a first region and a second region located at opposite sides, the first region and the second region having different shading rates.

22. The combustion apparatus as claimed in claim 21, wherein the first region is close to the burner and has a smaller shielding rate, and the second region is far from the burner and has a larger shielding rate.

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