CN211011366U

CN211011366U - Rotary flame burner

Info

Publication number: CN211011366U
Application number: CN201922076741.9U
Authority: CN
Inventors: 曾小义; 向鹏; 屈紫懿; 谢欣霖; 王康宁; 孙正圆; 吴镝; 胡馨月; 蒋金陶; 欧儒春; 唐前辉; 袁桂荣; 向平
Original assignee: Chongqing Electric Power College
Current assignee: Chongqing Electric Power College
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-14
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a rotary flame combustion head, which comprises a combustion head body, wherein a shell is arranged on the combustion head body, a natural gas channel component is arranged in the middle of the combustion head body, a gap between the natural gas channel component and the shell forms an annular first air channel, a second air channel is arranged in the middle of the natural gas channel component, the second air channel is communicated with an air inlet hole on the lower end face of the combustion head body, and the second air channel is also communicated with the first air channel; the combustion head body is provided with a natural gas inlet hole, the natural gas inlet hole is communicated with the corresponding position of the natural gas channel assembly, and the combustion head body is clamped with a combustion cover. The utility model discloses in, set up first air duct and second air duct respectively in natural gas channel's inside and outside both sides, can make natural gas and air intensive mixing to make the burning more abundant, improved the combustion efficiency of natural gas, it is energy-conserving effectual, the practicality is strong.

Description

Rotary flame burner

Technical Field

The utility model relates to a combustor makes the field, in particular to rotation type flame's burning head.

Background

The combustor makes the device of gas safety burning, and the combustion head is the core component of combustor, and the structure of combustion head directly influences the thermal efficiency of combustor, and traditional combustion head structure is fairly simple, and the gas is direct to be lighted with outside air mixture back promptly, but mixing cycle is very short for gas mixture during the burning is inhomogeneous, and air-fuel ratio is unstable, causes the gas burning insufficient, and combustion efficiency is lower, both extravagant energy, polluted environment again.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a do benefit to gas and air mixing to make the burning head of more abundant rotation type flame of burning.

The technical scheme of the utility model as follows:

a rotary flame combustion head comprises a combustion head body, wherein a shell is wound on the combustion head body, a natural gas channel assembly is arranged in the middle of the combustion head body, a gap between the natural gas channel assembly and the shell forms an annular first air channel, a second air channel is arranged in the middle of the natural gas channel assembly, the second air channel is communicated with an air inlet hole in the lower end face of the combustion head body, and the second air channel is also communicated with the first air channel; the combustion head body is provided with a natural gas inlet hole, the natural gas inlet hole is communicated with the corresponding position of the natural gas channel assembly, and the combustion head body is clamped with a combustion cover.

By adopting the structure, when in use, natural gas enters the combustion head body from the natural gas inlet hole and is discharged through the natural gas channel assembly, and because the first air channel and the second air channel are respectively positioned at the inner side and the outer side of the natural gas channel assembly, the discharged natural gas and ambient air are mixed and move together to the combustion cover, and are sprayed out and ignited after being compressed by the combustion cover; in this in-process, fan intercommunication air inlet port makes the air continuously follow the air inlet port and gets into the first body that burns, and at the in-process of natural gas burning, the air continuously supplements the position department of burning lid fast through first air passage and second air passage, can make natural gas and air intensive mixing to satisfy the air-fuel ratio requirement, thereby make the burning more abundant, improved the combustion efficiency of natural gas, energy-conserving effectual, the practicality is strong.

In order to make the natural gas spout in a rotating manner, so as to improve the mixing efficiency, preferably, the natural gas channel assembly comprises a tapered gas column, at least two natural gas channels with the same taper are uniformly arranged in the gas column along the circumferential direction, and each natural gas channel is of a spiral structure.

In order to better mix the air with the natural gas and form stable superposed airflow after mixing, preferably, at least two first guide grooves are spirally arranged on the inner side wall of the shell and the outer side wall of the gas column, and the two first guide grooves at corresponding positions are symmetrically arranged; the middle part of the fuel gas column is provided with a second air channel with a ring cone shape, the channel walls on the two sides of the second air channel are provided with at least two second guide grooves in a spiral shape along the taper direction of the fuel gas column, the two second guide grooves at the corresponding positions are symmetrically arranged, and the cone angle and the screw pitch of the first guide groove, the second guide groove and the natural gas channel are the same.

In order to discharge natural gas uniformly, preferably, a first annular channel and a second annular channel are sequentially arranged at the lower part in the combustion head body from bottom to top, a partition plate is arranged between the first annular channel and the second annular channel, and three natural gas vertical bridge channels are uniformly arranged on the partition plate along the circumferential direction; the first annular channel is communicated with the natural gas inlet hole, and the second annular channel is communicated with each natural gas channel.

In order to enable air to uniformly enter the second air channel from the first air channel, preferably, three air horizontal bridge channels are uniformly arranged in the partition board along the circumferential direction, the first air channel and the second air channel are communicated through the three air horizontal bridge channels, and the three air horizontal bridge channels and the natural gas vertical bridge channels are arranged at intervals.

In order to facilitate the disassembly and assembly of the combustion cover, preferably, three positioning grooves are uniformly formed in the shell along the circumferential direction, positioning bosses are arranged at positions, corresponding to the positioning grooves, on the combustion cover, the positioning bosses are provided with inclined surface structures which are wide at the upper part and narrow at the lower part, and the positions of the inclined surface structures are clamped in the positioning grooves at the corresponding positions.

In order to accelerate the mixing of the air and the natural gas and accelerate the discharge of the mixed gas, preferably, a combustion nozzle hole is arranged at a position on the combustion cover corresponding to the opening end of each natural gas channel, and the caliber of each combustion nozzle hole is smaller than that of the opening end of the natural gas channel at the corresponding position.

In order to supplement sufficient oxygen above the combustion cover in time during combustion and ensure sufficient combustion, preferably, three sections of arc-shaped grooves are uniformly arranged on the combustion cover at positions corresponding to the first air channel along the circumferential direction.

Has the advantages that: in the utility model, the first guide groove and the second guide groove which are spirally arranged are respectively arranged at the inner side and the outer side of the natural gas channel, so that the air wraps the natural gas and rotates together, the air and the natural gas are fully mixed, the air-fuel ratio requirement is met, and stable air flow is formed; thereby make the burning more abundant, improved the combustion efficiency of natural gas, energy-conserving effectual, the practicality is strong.

Drawings

Fig. 1 is a schematic view of the structure of the partial section of the present invention.

Fig. 2 is a partial sectional view of the burner head body.

Fig. 3 is a schematic structural view of a natural gas channel.

FIG. 4 is a top view of the burner head body.

Fig. 5 is a view from a-a of fig. 4.

Fig. 6 is a view from the direction B-B of fig. 5.

Fig. 7 is a view from direction C-C of fig. 5.

FIG. 8 is a schematic view of a partial cross-section of a combustion cap.

Fig. 9 is a top view of the mounting structure of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9, the present invention comprises a combustion head body 1, etc., wherein a housing 3 is wound on the combustion head body 1, a natural gas channel assembly is arranged in the middle of the combustion head body 1, the natural gas channel assembly comprises a tapered gas column 2, a plurality of natural gas channels 4 with the same taper are uniformly arranged in the gas column 2 along the circumferential direction, and each natural gas channel 4 is of a spiral structure; a first annular channel 11 and a second annular channel 12 are sequentially arranged at the lower part in the combustion head body 1 from bottom to top, a natural gas inlet 9 communicated with the first annular channel 11 is arranged on the combustion head body 1, a partition plate 15 is arranged between the first annular channel 11 and the second annular channel 12, and three natural gas vertical bridge channels 13 are uniformly arranged on the partition plate 15 along the circumferential direction; the second annular channel 12 communicates with each natural gas channel 4.

A gap between the natural gas channel assembly and the shell 3 forms an annular first air channel 5, a plurality of first guide grooves 16 are spirally arranged on the inner side wall of the shell 3 and the outer side wall of the gas column 2, and two first guide grooves 16 at corresponding positions are symmetrically arranged; a second air channel 6 with a ring cone shape is arranged in the middle of the fuel gas column 2, the second air channel 6 is communicated with an air inlet hole 10 on the lower end surface of the combustion head body 1, a plurality of second guide grooves 18 are spirally arranged on channel walls on two sides of the second air channel 6 along the taper direction of the fuel gas column 2, and the two second guide grooves 18 at corresponding positions are symmetrically arranged; the taper angle and the thread pitch of the first guide groove 16, the second guide groove 18 and the natural gas channel 4 are the same; evenly be provided with three air horizontal bridge passageway 8 along the circumferencial direction in the baffle 15, it is three air horizontal bridge passageway 8 sets up with the perpendicular bridge passageway 13 of natural gas mutual interval, between first air passage 5 and the second air passage 6, communicate by three air horizontal bridge passageway 8.

The combustion head body 1 is clamped with a combustion cover 7, the shell 3 is uniformly provided with three positioning grooves 17 along the circumferential direction, the positions of the combustion cover 7 corresponding to the positioning grooves 17 are respectively provided with a positioning boss 73, the positioning bosses 73 are provided with an inclined plane structure with a wide upper part and a narrow lower part, and the positions of the inclined plane structure are clamped in the positioning grooves 17 at corresponding positions; a combustion spray hole 71 is formed in the position, corresponding to the opening end of each natural gas channel 4, of the combustion cover 7, and the caliber of each combustion spray hole 71 is smaller than that of the opening end of the corresponding natural gas channel 4; three sections of arc-shaped grooves 72 are uniformly arranged on the combustion cover 7 at positions corresponding to the first air channel 3 along the circumferential direction.

The method of use of this example is as follows:

as shown in fig. 1 to 9, before use, an air outlet of a blower (not shown) is fixedly connected with an air inlet 10, then three positioning bosses 73 are respectively aligned with the positioning grooves 16 at corresponding positions, a combustion cover 7 is clamped and fixed on a housing 3, and each natural gas channel 4 is aligned with a combustion spray hole 71 at a corresponding position; because the positioning boss 73 is provided with the inclined plane structure with a wide upper part and a narrow lower part, the position of the inclined plane structure is clamped in the positioning groove 17 at the corresponding position, so that the combustion cover 7 can be firmly clamped on the combustion head body 1, and the combustion cover 7 is prevented from rotating or transversely leaping up.

When the natural gas exhausting device is used, natural gas is injected from the natural gas inlet hole 9, firstly enters the first annular channel 11, then enters the second annular channel 12 through the three natural gas vertical bridge channels 13, and then enters the natural gas channel 4, and because each natural gas channel 4 is of a spiral structure, the natural gas forms spiral airflow and is then discharged from the natural gas channel 4 in a rotary mode; meanwhile, the fan continuously sends air from the air inlet hole 10, so that the air enters the first air channel 5, part of the air also enters the second air channel 6 through the three air horizontal bridge channels 8, the first guide groove 16 and the second guide groove 18 are both spiral, the entered air forms spiral air flows through the first guide groove 16 and the second guide groove 18 respectively and then is discharged, the natural gas channel 4 is positioned between the first air channel 5 and the second air channel 6, the discharged air wraps the natural gas from the inner side and the outer side respectively to rotate, move and mix together, when the air moves to the lower end of the combustion cover 7, the flowing speed of the mixed gas at the position is reduced because the caliber of the combustion spray hole 71 is smaller than the caliber of the opening end of the natural gas channel 4 at the corresponding position, the mixing period of the air and the natural gas is prolonged, and the full mixing between the air and the natural gas can be realized, so as to meet the requirement of air-fuel ratio, thereby ensuring more sufficient combustion and improving the combustion efficiency of natural gas.

Then, the mixed gas moves upward toward the combustion cap 7, and because the diameters of the combustion nozzle holes 71 are smaller than the diameter of the natural gas channel 4, when the mixed gas passes through the combustion nozzle holes 71, the velocity of the gas ejected from the combustion nozzle holes 71 is increased and the mixed gas is ejected without reducing the total amount of gas passing through the mixed gas, and when the mixed gas is ignited, the mixed gas is ejected in a flame shape, so that sufficient combustion is ensured, and the heating efficiency of the flame is improved.

Because the taper angles and the thread pitches of the first guide groove 16, the second guide groove 18 and the natural gas channel 4 are the same, the natural gas and the air can be fully mixed to form superposed airflow with a stable structure, and the mixed airflow is kept stable; meanwhile, the combustion column 2 is of a conical structure, so that the contact area between the flame and the pot body is increased in a conical flame form formed after natural gas and air are mixed and ignited, the heat conduction efficiency is improved, the energy-saving effect is good, and the practicability is high.

The utility model discloses do not describe the part unanimously with prior art, do not describe herein any more.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. The utility model provides a burner of rotation type flame, includes burner body (1), its characterized in that: the burner head comprises a burner head body (1), a shell (3) is wound on the burner head body (1), a natural gas channel assembly is arranged in the middle of the burner head body (1), a gap between the natural gas channel assembly and the shell (3) forms an annular first air channel (5), a second air channel (6) is arranged in the middle of the natural gas channel assembly, the second air channel (6) is communicated with an air inlet hole (10) in the lower end face of the burner head body (1), and the second air channel (6) is also communicated with the first air channel (5); be equipped with natural gas inlet port (9) on this combustion head body (1), natural gas inlet port (9) and the corresponding position intercommunication of natural gas passageway subassembly the joint has combustion lid (7) on combustion head body (1).

2. A burner head of a rotating flame as claimed in claim 1, wherein: the natural gas channel subassembly includes conical gas post (2) in gas post (2), evenly be provided with two at least with tapering natural gas channel (4) along the circumferencial direction, every natural gas channel (4) are helical structure.

3. A burner head of a rotating flame as claimed in claim 2, wherein: at least two first guide grooves (16) are spirally arranged on the inner side wall of the shell (3) and the outer side wall of the gas column (2), and the two first guide grooves (16) at corresponding positions are symmetrically arranged; the middle part of the fuel gas column (2) is provided with a second air channel (6) with a ring cone shape, at least two second guide grooves (18) are spirally arranged on channel walls on two sides of the second air channel (6) along the taper direction of the fuel gas column (2), the two second guide grooves (18) in corresponding positions are symmetrically arranged, and the cone angle and the screw pitch of the first guide groove (16), the second guide groove (18) and the natural gas channel (4) are the same.

4. A burner head of a rotating flame as claimed in claim 1, wherein: a first annular channel (11) and a second annular channel (12) are sequentially arranged at the lower part in the combustion head body (1) from bottom to top, a partition plate (15) is arranged between the first annular channel (11) and the second annular channel (12), and three natural gas vertical bridge channels (13) are uniformly arranged on the partition plate (15) along the circumferential direction; the first annular channel (11) is communicated with a natural gas inlet hole (9), and the second annular channel (12) is communicated with each natural gas channel (4).

5. A burner head of a rotating flame as claimed in claim 4, wherein: the air-cooled natural gas separator is characterized in that three air horizontal bridge channels (8) are uniformly arranged in the separator (15) along the circumferential direction, the first air channel (5) is communicated with the second air channel (6) through the three air horizontal bridge channels (8), and the three air horizontal bridge channels (8) and the natural gas vertical bridge channel (13) are arranged at intervals.

6. A burner head of a rotating flame as claimed in claim 1, wherein: evenly be equipped with three positioning groove (17) along the circumferencial direction on shell (3) the position department that corresponds positioning groove (17) on combustion cover (7) all is equipped with one location boss (73) be equipped with wide inclined plane structure narrow down on location boss (73), the position department joint of this inclined plane structure is in positioning groove (17) of corresponding position.

7. A burner head of a rotating flame as claimed in claim 1, wherein: and combustion spray holes (71) are formed in the positions, corresponding to the opening ends of the natural gas channels (4), of the combustion cover (7), and the caliber of each combustion spray hole (71) is smaller than that of the opening end of the corresponding natural gas channel (4).

8. A burner head of a rotating flame as claimed in claim 1, wherein: three sections of arc-shaped grooves (72) are uniformly arranged on the combustion cover (7) along the circumferential direction at positions corresponding to the first air channel (5).