TW201534846A - Vortex type flame burning device - Google Patents

Abstract

The present invention relates to a vortex type flame burning device, which comprises a nozzle, a flow guiding set and a mask body. The nozzle includes a nozzle head, a nozzle body, a first air chamber, and a second air chamber. The nozzle head and the nozzle body are detachably connected with each other. The nozzle head includes two air output channels. The first air chamber is in communication with the two air output channels. The second air chamber is in communication with the first air chamber. One end of the second air chamber that is apart from the first air chamber is capable of being connected to a burning can. The flow guiding set is arranged around the outer circumference of the nozzle and includes a plurality of blades. The blades are distributed uniformly in a spiral shape along the circumferential direction of the nozzle, and an air guiding channel is formed between every two adjacent blades for allowing air to pass therethrough. The mask body covers the flow guiding set and is transparent. The mask body is in communication with the two air output channels of the nozzle head and the air guiding channel of the flow guiding set.

Description

Vortex flame burner

The present invention mainly discloses a flame burning device, and more particularly to a burning device capable of efficiently generating a scroll flame.

Referring to the "VORTEX TYPE GAS LAMP" patent of U.S. Patent No. 7,097,448, it discloses a vortex type gas lamp for combustible gas to generate an upward vortex flame, the vortex flame being located in a surrounding Limited to the boundary of the vortex air, there is an interface between the vortex air without gas and the central region surrounded by gas, and the gas is burned inside. The gas lamp has an axis and includes: a base having a surface extending laterally along the central axis; a shield including a first and a second axially extending section Each block has an upper end and a lower end, and the lower end of each block is fluid-tightly coupled to the base, each block is almost identical and transparent, each block constitutes a cut-off wall, and the cut-off wall has an arc. An inner wall and an outer wall, each block having an axially extending first edge and an axially extending second edge; the first and second blocks Alternatingly overlapping and their edges are adjacent to each other and spaced apart to form tangentially oriented air ports, thus forming an axially extending chamber that is open to the sides due to the ports; the first and second blocks are It is arranged and arranged at the base and surrounds the entrance of the combustible gas; the gas combines with the air entering from the port for combustion, the burning gas forms a flame, the flame is separated from the curved inner wall, and the air does not allow the gas to flow to the port.

The shield of the aforementioned patent includes two opposite first and second blocks, the first block and the second block are all disposed on the base, and the two ends of the two blocks overlap each other to form a port, and the external air passes through the opposite The two ports enter the interior of the shroud and provide the air required for flame combustion by external air entrainment inside the shroud. Such a design can only provide continuous combustion of the flame, and is unstable in the practical application due to the influence of the air flow around the device. It is difficult to maintain a stable flame height and a vortex shape, and can only be within a certain range of the flame scale. In order to form a rotating flame effect, if the flame scale is small or the length of the shield is not long enough, a clear rotating flame effect cannot be formed.

Referring to U.S. Patent No. D621873 "FIRE TORNADO LAMP", which discloses a seat body and a translucent cover, the periphery of the seat body is provided with a plurality of air holes communicating with the inside of the transmissive cover, and the radial positions of the air holes are arranged obliquely. In the transparent cover, the longitudinal position of the air vent is in an upright position and is located in the body. When the outside air enters the interior of the transmissive cover via the obliquely aligned air holes, the air forms a swirling flow that provides the air required by the flame to allow the flame to continue to burn and form a rotating effect. However, since the air inlet is located on the plane and above the combustion port, the direction of the air intake is perpendicular to the direction of combustion of the flame, and the rotating flame effect can only be formed when the flame scale is large enough. If the flame scale is small, it cannot be formed obviously and stably. Rotating flame effect.

Therefore, the combustion of the device designed by the prior rotary flame technique cannot reduce the device, and the scope and occasion of the derivative use are limited and the temperature of the device is too high. The present invention is intended to obviate or at least alleviate the problems encountered in the prior art that are limited by the size of the flame and the length of the shroud.

In view of the fact that the prior art described above cannot effectively overcome the limitation that the effect of generating a rotating flame is limited by the size of the flame and the length of the shield, the applicant has filed this patent application to solve the aforementioned problems.

The technical problem to be solved by the present invention is that a conventional combustion device that generates a scroll flame cannot reduce and maintain a stable flame height and a distinct swirl shape, and can only be used when the flame scale is large and the shield length is long enough. Underneath, it is possible to provide a distinctly rotating flame effect.

To this end, the present invention provides a scroll type flame combustion apparatus comprising:

a nozzle having a nozzle head, a nozzle body, a first air chamber and a second air chamber, the nozzle head being detachably connected to the nozzle body, the nozzle head including two air outlets, the two nozzles The air passages are radially symmetrical with each other and extend along a first axis, the first air chamber is in communication with the two air passages and extends along a second shaft, and the second air chamber is in communication with the first air chamber, the second air An end of the chamber away from the first air chamber can be connected to a fuel tank;

a flow guiding group disposed on an outer circumference of the nozzle and comprising a plurality of blades, each of the blades being spirally and evenly distributed along a circumferential direction of the nozzle, and an air guiding channel is formed between each two adjacent blades for air to pass through; as well as

A cover body is disposed in the flow guiding group and is capable of transmitting light, and the cover body surrounds a confinement space that communicates with the two air outlet passages of the nozzle head and the air guiding passage of the flow guiding group.

Since the general rotary flame device burns, the chimney effect is used along with other fluid effects to form a rotating flame effect. The chimney effect is to reduce the density of the air by heat, so that the generated hot air rises in the reticle and exits at the top of the hood. Because the top of the cover is open, a negative pressure is generated due to the overflow of hot air and the air at the bottom of the cover is drawn into the body. The flame in the cover is raised by the ascending air flow, which is the aid of the so-called chimney effect. If the intake air entering the cover is rotated by various flow guiding methods, the ascending air current can be spiraled, thereby generating the effect of rotating the flame. The upwardly extending path of the spiral air passage of the present invention is a flow duct for introducing external air into the translucent cover. Since the cross-sectional area of the spiral air passage is smaller than the cross-sectional area of the translucent cover, when the air enters the spiral air passage, the light enters the transparent air passage. When inside the hood, a venturi effect is generated to accelerate the air, and the accelerated air will maintain the speed and rise upwards. When the supplemented air rises upward, it will drive the flame to rotate and simultaneously spiral upward, further Increase the flame height.

However, the intensity of the chimney effect is related to the height of the chimney, the temperature difference between the inside and outside of the hood, and the degree of air circulation into the hood. Generally, when the combustion scale is small and the height of the shell body generating the chimney effect is short, the chimney effect is weakened, mainly because the combustion scale is small relative to the amount of heat generated, and thus the pressure difference between the upper and lower sides of the transparent cover body is caused. Too low, in this case, due to the insufficient conductivity of the swirling airway and the inertia of the fluid itself in the enclosure, it is impossible to form a steady spiral upward flow in a very short distance if only relying on the chimney effect and the diversion effect. The field produces an effect of a distinctly rotating flame.

Therefore, the improved technical feature of the present invention is that the device must combine several fluid effects and nozzle design to achieve a flame effect that can still form a significant rotation when the flame scale is reduced.

In addition to the chimney effect and the diversion effect of the general rotating flame, the present invention incorporates the Coanda Effect, which refers to the suction of the outside air by the negative pressure formed by the chimney effect in the transparent cover, and The inhaled air is guided to the inner wall surface of the translucent cover in a spiral shape by the baffle. Due to the viscosity of the air itself, the incoming air flow has a tendency to deviate slightly from the original flow direction and adhere to the surface of the object flowing therethrough. This is because the viscous surface friction between the surfaces of the flowing objects, and the flow velocity of the air flowing near the surface of the object is slowed down, as long as the curvature of the surface of the object through which the airflow flows is not too large, and the flow rate is slowed down. It will cause the introduced air to be adsorbed on the surface of the object. However, once the flow rate becomes zero or negative along the pressure gradient across the surface of the object, the fluid is no longer adsorbed on the surface of the object to create a separation and is accompanied by eddy currents. At the same time, centrifugal force is generated when guiding the outside cold air to spirally guide the inner wall surface of the transparent cover. Due to the large proportion of cold air, the guiding airflow and centrifugal force make the Coanda effect last longer in the transparent cover. The flow distance, in turn, maintains a relatively stable spiral upward flow field. Finally, the central axis of at least two air outlets is aligned along a tangential direction of a specific spiral, so that the injected fuel does not need to be completely driven by the surrounding air to have a spiraling inertia tendency. Therefore, the device can cooperate with the above multiple fluids during combustion to form a distinctly rotating flame effect at a very small flame scale, which is impossible for existing devices.

The main technical feature of the present invention is that the nozzle head includes two air outlets and a first air chamber, and the two air outlets respectively extend axially along a first axis, and the first air chamber communicates with the two air passages and along A second shaft extends axially, the two air passages being radially symmetric with each other along the second axis, each of the first shafts being offset relative to the second shaft and forming an angle of less than 90 degrees.

The secondary technical feature of the present invention is that the outer peripheral edge of one end of the nozzle head has an externally threaded portion, and the nozzle body forms an internal threaded portion on the inner wall surface of the second air chamber, and the internal thread portion of the nozzle body is detachably The external threaded portion of the nozzle head is screwed to each other, and the flanges allow the user to easily rotate the nozzle head relative to the nozzle body such that the nozzle tip quickly connects or disengages the nozzle body. Therefore, the user can quickly replace the nozzle heads having different angles to produce different scroll flame effects according to different needs.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

The present invention is described with respect to the preferred embodiments and the accompanying drawings.

1 to 6, a perspective view, an exploded view and a cross-sectional view of a first embodiment of a scroll type flame combustion apparatus according to the present invention. The scroll type flame combustion apparatus includes a nozzle 10, a flow guiding group 20, a cover 30 and a holder 40. The guide group 20 is disposed on the outer periphery of the nozzle 10 , and the cover 30 is coupled to the support base 40 , and the cover 30 is disposed on the flow guiding group 20 and the nozzle 10 . The seat 40 is connected to the flow guiding group 20 and is placed against a fuel tank 50.

The nozzle 10 includes a nozzle head 11 and a nozzle body 12 that are detachably interconnected with the nozzle body 12. The nozzle head 11 includes two air outlets 111 and a first air chamber 112. The two air outlets 111 extend axially along a first axis A1. The first air chamber 112 is formed on the nozzle head 11 and The air outlet passages 111 communicate and extend axially along a second axis A2. The two air outlet passages 111 are radially symmetric with each other along the second axis A2, and each of the first axis A1 and the second axis A2 are relatively offset and form a An angle α of less than 90 degrees, a better technical solution is that the angle is equal to 17.5 degrees. The nozzle body 12 includes a second air chamber 121 formed on the nozzle body 12 and communicating with the first air chamber 112 of the nozzle head 11 and extending coaxially along the second axis A2. An end of the second gas chamber 121 away from the first gas chamber 112 can be connected to a fuel tank 50, so that fuel of the fuel tank 50 can pass through the second gas chamber 121, the first gas chamber 112, and be ejected from the two air passages 111. . An outer peripheral edge of one end of the nozzle head 11 has an externally threaded portion 113. The outer peripheral edge of the nozzle tip 11 away from the outer end of the externally threaded portion 113 extends radially along the second axis A2 to form two mutually symmetric flanges 114. The body 12 defines an internal thread portion 122 on the inner wall surface of the second air chamber 121. The internal thread portion 122 of the nozzle body 12 is detachably coupled to the external thread portion 113 of the nozzle head 11, and the flanges are screwed together. 114 allows the user to easily rotate the nozzle tip 11 relative to the nozzle body 12 such that the nozzle tip 11 quickly connects or disengages the nozzle body 12. Therefore, the user can quickly change the nozzle heads 11 having different angles α to manufacture different swirling flame effects according to different needs.

The flow group 20 includes a plurality of blades 21, a first member 23 and a second member 24. The plurality of blades 21 are disposed between the first member 23 and the second member 24, and each of the blades 21 is helically evenly distributed along the circumferential direction of the nozzle 10, and a gap is formed between each two adjacent blades 21. The air guiding passage 22 is for air to pass through. Referring to FIG. 7 at the same time, each of the blades 21 has a cutting surface 211, and the extending surface of the cutting surface 211 intersects the second axis A2 and forms a guiding angle β greater than 45 degrees, more preferably. The technical solution is that the lead angle β is equal to 70 degrees. The first member 23 extends axially along the second axis A2 to form a first through hole 231. The second member 24 extends axially along the second axis A2 to form a second through hole 241. The first through hole 231 is formed. The nozzle 10 is connected to the second through hole 241 and sleeved. The first through hole 231 extends radially along the second axis A2 to form two mutually symmetric grooves 234, and the two grooves 234 can clamp the two flanges 114 of the nozzle head 11, one of the first members 23 A second connecting portion 242 is formed on the end surface of the first member 23, and the first connecting portion 232 and the second connecting portion 242 are serrated and The first member 23 is provided with a plurality of first through holes 233, each of the blades 21 has a second through hole 212, and the second member 24 is provided with a plurality of third through holes 243, the first member 23 The plurality of first through holes 233, the plurality of second through holes 212 of the plurality of blades 21 and the plurality of third through holes 243 of the second member 24 correspond to each other, and the plurality of connecting members 25 respectively pass through the plurality of the first members 23 The first through hole 233 and the plurality of second through holes 212 of the plurality of blades 21 are connected to the plurality of third through holes 243 of the second member 24. In this embodiment, the connecting member 25 is a screw, and the third through hole 243 is a screw hole.

The cover 30 is made of a light transmissive material and encircles to form a confinement space 31 that communicates with the two air outlets 111 of the nozzle head 11 and the air passages 22 of the flow guiding group 20.

The holder 40 has a top portion 41, a bottom portion 42 and a plurality of support portions 43 formed between the top portion 41 and the bottom portion 42. The holder seat 40 defines a hole 45 in the top portion 41. The cover body 30 is formed. Connecting and abutting against the inner wall surface of the hole 45, the hole 45 is sleeved in the flow guiding group 20, and the bottom portion 42 is screwed to the second member 24 of the flow guiding group 20, and the two supporting portions 43 are respectively An intake passage 44 is formed between the intake passages 44 and the air passages 22. The holder 40 defines a sleeve hole 46 in the bottom portion 42. The bottom portion 42 abuts the fuel tank 50. The nozzle body 12 of the nozzle 10 is disposed in the sleeve hole 46 and connected to the fuel tank 50.

Please refer to FIG. 8 and FIG. 9 for a schematic view and a cross-sectional view of the scroll type flame combustion apparatus of the present invention. The fuel of the fuel tank 50 passes through the second air chamber 121 of the nozzle body 12 and the first air chamber 112 of the nozzle head 11 and is sprayed from the air outlet passage 111 to the restriction space 31 of the cover body 30 at the nozzle head 11 A swirling flame is formed thereon, and the air passes through the air passage 44 of the support 40 through the air passage 22 of the air guiding group 20 and enters the restricted space 31 of the casing 30, and the airflow generates an upward airflow to drive the scroll. The flame rise provides a stable flame shape.

10 to 15, which are perspective views, exploded views and cross-sectional views of a second embodiment of a scroll type flame combustion apparatus of the present invention. The second embodiment of the scroll type flame combustion apparatus of the present invention is substantially the same as the first embodiment, and the difference is that:

The two air outlets 111a are radially symmetric with each other and extend along the first axis A1. The first air chamber 121a and the second air chamber 122a are both formed in the nozzle body 12a and communicate with each other. The second air chamber 122a is along A third axis A3 extends, each of the first axis A1, the second axis A2 and the third axis A3 are parallel to each other, and the second air chamber 122a can be connected to a fuel outlet pipe 70, and the fuel outlet pipe 70 is connected to the The fuel tank 50 allows fuel in the fuel tank 50 to enter the restricted space 31 via the fuel outlet pipe 70, the second air chamber 122a, the first air chamber 121a, and the two air passages 111a.

The nozzle head 11a has a plurality of first fixing holes 112a, and the nozzle body 12a has a plurality of second fixing holes 123a, and the plurality of first fixing holes 112a and the plurality of second fixing holes 123a correspond to each other, and several fixing members 13a passes through the plurality of first fixing holes 112a and is detachably connected to the plurality of second fixing holes 123a, so that the nozzle head 11a is detachably coupled to the nozzle body 12a. In the embodiment, the number of the first fixing holes 112a and the plurality of second fixing holes 123a is the same as that of the plurality of fixing members 13a, and the plurality of second fixing holes 123a are screw holes. The plurality of fixing members 13a are screws.

The nozzle head 11a further has a first shaft hole 113a and a first ignition hole 114a. The nozzle body 12a has a second shaft hole 124a and a second ignition hole 125a. The first shaft hole 113a and the second portion The shaft hole 124a extends along the second axis A2 and can pass through a temperature sensing and extinguishing device 80. The temperature sensing device 80 can detect the flame temperature to control whether the fuel is continuously supplied. The first ignition hole 114a and the second portion The ignition hole 125a is capable of passing an ignition needle lead 90.

The flow guiding group 20a includes a first member 21a and a second member 22a, the first member 21a has a first venting hole 211a, and the second member 22a has a second venting hole 221a, the first member 21a and The second member 22a is connected to each other. The first venting hole 211a and the second venting hole 221a communicate with each other and extend along the second axis A2 to receive the nozzle 10a. One end of the first component 21a is serrated and has a plurality of first engaging portions 212a, the second member 22a is serrated adjacent to one end of the first member 21a and has a plurality of second engaging portions 222a, and the plurality of first engaging portions 212a and the plurality of second portions The joint portions 222a correspond to each other and are fitted to each other.

Each of the blades 23a is located between each of the first engaging portions 212a and each of the second engaging portions 222a and has a fixing portion 231a and an extending portion 232a, and a fixing portion 231a and the extending portion 232a have a An angle greater than 90 degrees, one end of each of the fixed segments 231a of the blade 23a is connected between each of the first engaging portions 212a and each of the second engaging portions 222a, and the extending portion 232a of each two adjacent blades 23a An air passage 24a is formed to allow air to pass therethrough.

The second embodiment of the scroll type flame combustion apparatus of the present invention further includes a flow guiding ring 60 disposed at an end of the first member 21a of the flow guiding group 20a away from the second member 22a, the guiding ring 60 having a guide The flow hole 61 communicates with the first vent hole 211a. The inner diameter of the flow guiding hole 61 is smaller than the inner diameter of the first vent hole 211a.

According to the above, it can be concluded that the scroll type flame combustion apparatus of the present invention has the following advantages:

1. The nozzle head 11 includes two air outlets 111 and a first air chamber 112. The two air outlets 111 extend axially along a first axis A1, and the first air chamber 112 communicates with the two air outlets 111. Extending axially along a second axis A2, the two air outlets 111 are radially symmetric with each other along the second axis A2, and each of the first axis A1 and the second axis A2 are relatively offset and form an angle of less than 90 degrees. α.

2. The outer peripheral edge of one end of the nozzle head 11 has an external thread portion 113. The nozzle body 12 defines an internal thread portion 122 on the inner wall surface of the second air chamber 121. The internal thread portion 122 of the nozzle body 12 is detachably The external thread portion 113 of the nozzle head 11 is screwed to each other, and the flanges 114 allow the user to easily rotate the nozzle head 11 relative to the nozzle body 12, so that the nozzle head 11 is quickly connected or disengaged from the nozzle body. 12. Therefore, the user can quickly change the nozzle heads 11 having different angles α to manufacture different swirling flame effects according to different needs.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the practice of the present invention. Others such as the shape of the nozzle or the flow guiding group, or the type transition of the blade, It is also within the scope of the present invention; therefore, equivalent changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are intended to be included in the scope of the invention. Inside.

In summary, the scroll type flame combustion apparatus of the present invention is not seen in the prior art, so it has the novelty and progress of the patent, and the use value of the industry; the applicant is in accordance with the provisions of the patent law. The bureau filed an application for an invention patent.

10‧‧‧ nozzle
11‧‧‧Nozzle head
111‧‧‧Airway
112‧‧‧First air chamber
113‧‧‧External thread
114‧‧‧Flange
12‧‧‧Nozzle body
121‧‧‧Second chamber
122‧‧‧Threaded Department
20‧‧‧ diversion group
21‧‧‧ leaves
211‧‧‧faced
212‧‧‧Second perforation
22‧‧‧ Airway
23‧‧‧First part
231‧‧‧ first through hole
232‧‧‧First connection
233‧‧‧First perforation
234‧‧‧ Groove
24‧‧‧ second part
241‧‧‧Second through hole
242‧‧‧Second connection
243‧‧‧ third perforation
25‧‧‧Connecting parts
30‧‧‧ Cover
31‧‧‧Limited space
40‧‧‧Support
41‧‧‧ top
42‧‧‧ bottom
43‧‧‧Support
44‧‧‧ Inlet
45‧‧‧ hole
46‧‧‧ hole sets
50‧‧‧ fuel tank
A1‧‧‧ first axis
A2‧‧‧ second axis α‧‧‧ angle β‧‧‧ lead angle
10a‧‧‧ nozzle
11a‧‧・Nozzle head
111a‧‧‧Airway
112a‧‧‧First fixing hole
113a‧‧‧first shaft hole
114a‧‧‧First ignition hole
12a‧‧‧Nozzle body
121a‧‧‧First air chamber
122a‧‧‧Second chamber
123a‧‧‧Second fixing hole
124a‧‧‧Second shaft hole
125a‧‧‧second ignition hole
13a‧‧‧Fixed parts
20a‧‧‧ diversion group
21a‧‧‧ first part
211a‧‧‧First vent
212a‧‧‧First joint
22a‧‧‧second part
221a‧‧‧second vent
222a‧‧‧Second joint
23a‧‧‧ Blades
231a‧‧‧Fixed section
232a‧‧‧Extension
24a‧‧‧ airway
60‧‧‧Guide ring
61‧‧‧Inlet
70‧‧‧fuel outlet pipe
80‧‧‧temperature-temperature extinguishing device
90‧‧‧Igniting pin lead
A3‧‧‧ third axis

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a first embodiment of a scroll type flame combustion apparatus of the present invention, and showing that the scroll type flame burner is connected to a fuel tank. Figure 2 is a partial exploded perspective view of Figure 1. Figure 3 is a partial exploded view of Figure 2. Figure 4 is a partial exploded perspective view of Figure 2 taken from another angle. Fig. 5 is a perspective view showing the nozzle head of the scroll type flame combustion apparatus of the present invention. Figure 6 is a plan view of Figure 5. Figure 7 is a partial cross-sectional view of Figure 1. Figure 8 is a schematic view showing the use of the first embodiment of the scroll type flame combustion apparatus of the present invention. Figure 9: A partial cross-sectional view of Figure 8. Figure 10 is a perspective view showing the second embodiment of the scroll type flame combustion apparatus of the present invention, and showing that the scroll type flame burner is connected to a fuel tank. Figure 11 is a partial exploded perspective view of Figure 10. Figure 12 is a partial enlarged view of Figure 11. Figure 13 is a partial cross-sectional view of Figure 10. Figure 14 is a partial enlarged view of Figure 13. Figure 15 is a cross-sectional view of another portion of Figure 10.

10‧‧‧ nozzle

11‧‧‧Nozzle head

111‧‧‧Airway

113‧‧‧External thread

114‧‧‧Flange

12‧‧‧Nozzle body

121‧‧‧Second chamber

122‧‧‧Threaded Department

20‧‧‧ diversion group

21‧‧‧ leaves

211‧‧‧faced

212‧‧‧Second perforation

22‧‧‧ Airway

23‧‧‧First part

231‧‧‧ first through hole

232‧‧‧First connection

233‧‧‧First perforation

234‧‧‧ Groove

24‧‧‧ second part

241‧‧‧Second through hole

242‧‧‧Second connection

243‧‧‧ third perforation

25‧‧‧Connecting parts

40‧‧‧Support

41‧‧‧ top

42‧‧‧ bottom

43‧‧‧Support

45‧‧‧ hole

46‧‧‧ hole sets

Claims (10)

A scroll type flame combustion apparatus comprising: a nozzle having a nozzle head, a nozzle body, a first air chamber and a second air chamber, the nozzle head being detachably connected to the nozzle body, The nozzle head includes two air outlets that are radially symmetric with each other and extend along a first axis, the first air chamber is in communication with the two air outlets and extends along a second axis, the second air chamber In communication with the first air chamber, the second air chamber is connected to a fuel tank at one end away from the first air chamber; a flow guiding group is disposed on the outer circumference of the nozzle and includes a plurality of blades, each of the blades a spirally evenly distributed along the circumferential direction of the nozzle, an air passage is formed between each two adjacent blades for air to pass through; and a cover body is disposed in the flow guiding group and capable of transmitting light, the cover circle A confinement space is formed that communicates with the two outlet passages of the nozzle head and the air passages of the flow guiding group. The scroll type flame combustion apparatus of claim 1, wherein the first air chamber is formed in the nozzle head, the second air chamber is formed in the nozzle body, and the second air chamber and the first air chamber are both The second shaft extends, each of the first shafts being offset relative to the second shaft and forming an included angle of less than 90 degrees. The scroll type flame combustion apparatus of claim 2, wherein an outer peripheral edge of one end of the nozzle head has an external thread portion, and the nozzle body has an internal thread portion on an inner wall surface of the second air chamber, the nozzle body The female threaded portion is detachably coupled to the male threaded portion of the nozzle head. The scroll type flame combustion apparatus according to any one of claims 1 to 3, wherein the flow group includes a first member and a second member, the plurality of blades being disposed on the first member and the first Between the two components, the first component forms a first through hole along the second axis, and the second component forms a second through hole along the second axis, the first through hole is connected to the second through hole And accommodating the nozzle, an end surface of the first component forms a first connecting portion, and the second component forms a second connecting portion adjacent to an end surface of the first component, the first connecting portion and the second connecting portion The connecting portion is serrated and fitted to each other, the first member ring is provided with a plurality of first perforations, each of the blades has a second perforation, and the second member is provided with a plurality of third perforations, the number of the first members a first perforation, a plurality of second perforations of the plurality of blades and a plurality of third perforations of the second member respectively corresponding to the plurality of first perforations of the first member and the plurality of blades A plurality of second perforations are coupled to the plurality of third perforations of the second component. The scroll type flame combustion apparatus of claim 4, further comprising a socket having a top portion, a bottom portion and a plurality of support portions formed between the top portion and the bottom portion, the support Forming a hole in the top portion, the cover body abuts against an inner wall surface of the hole, the hole is sleeved in the flow guiding group, and the bottom portion is connected with the second component of the flow guiding group, and each of the two supporting portions Forming an air inlet passage, the air inlet passage is in communication with the air guide passage, the support seat forms a sleeve hole at the bottom, the bottom portion abuts the fuel tank, and the nozzle body of the nozzle penetrates the sleeve hole and Connected to the fuel tank. The scroll-type flame combustion apparatus of claim 1, wherein the first air chamber and the second air chamber are both formed in the nozzle body, and the second air chamber extends along a third axis, each of the first The shaft, the second shaft and the third shaft are parallel to each other, and the second air chamber is connectable to a fuel outlet pipe. The scroll type flame burning device of claim 6, wherein the nozzle head has a plurality of first fixing holes, the nozzle body has a plurality of second fixing holes, and the plurality of fixing members respectively pass through the plurality of first fixing holes And detachably connected to the plurality of second fixing holes. The scroll type flame combustion apparatus according to claim 6 or 7, wherein the nozzle head has a first shaft hole and a first ignition hole, and the nozzle body has a second shaft hole and a second ignition hole. The first shaft hole and the second shaft hole extend along the second shaft and can pass through a temperature sensing and extinguishing device, and the first ignition hole and the second ignition hole can pass an ignition pin lead. The scroll type flame combustion apparatus according to any one of claims 6 to 8, wherein the flow guiding group comprises a first member and a second member, the first member having a first venting hole, the second member Having a second venting opening, the first member is interconnected with the second member, the first venting opening and the second venting opening are in communication with each other and extend along the second axis, the first member having a serrated end Having a plurality of first engaging portions, the second member is serrated adjacent to one end of the first member and has a plurality of second engaging portions, the plurality of first engaging portions corresponding to the plurality of second engaging portions And they fit together. The scroll type flame combustion apparatus of claim 9, wherein each of the blades is located between each of the first joint portions and each of the second joint portions and has a fixed section and an extended section, the fixed section There is an angle greater than 90 degrees between the extensions, and one end of each of the fixed segments of the blade is connected between each of the first joints and each of the second joints.