CN210373443U

CN210373443U - Anti-backfire safety burner

Info

Publication number: CN210373443U
Application number: CN201921283922.2U
Authority: CN
Inventors: 蒋健; 陆建萍
Original assignee: Taizhou Sanyang Environmental Protection Equipment Co ltd
Current assignee: Taizhou Sanyang Environmental Protection Equipment Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-04-21
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to an anti-backfire technical field of combustor specifically is anti-backfire safety burner, including the combustor shell, the upper end of combustor shell is provided with the burning chamber, and the lower terminal surface at the mounting panel is installed to the up end of combustor shell, and the lower extreme intercommunication anti-backfire inner chamber in burning chamber, the upper end of anti-backfire inner chamber is provided with first toper reducing pipe, and beneficial effect is: the utility model has the advantages that the reducing pipe and the copper mesh are arranged, so that the inner force of the air inlet is reduced, the area of the air inlet airflow is reduced, the pressure in the air inlet cavity is larger than that in the combustion cavity, and the purpose of tempering prevention is achieved; through setting up the buffer board of parallel from top to bottom, the copper mesh that utilizes the buffer board realizes slowing down the purpose that the air current admits air, utilizes the fire-retardant board of arc of crisscross distribution each other on the adjacent buffer board, realizes the separation to flame after tempering, and then prevents that flame from stretching to the air inlet.

Description

Anti-backfire safety burner

Technical Field

The utility model relates to an anti-backfire technical field of a burner, in particular to an anti-backfire safety burner.

Background

When the burner is used for combustion heating, combustion flame is easy to spread to an air inlet pipeline due to unstable air inlet pressure, and a tempering accident is further caused.

The existing burner utilizes air pressure of inlet air to prevent flame from backfiring, but the air pressure in an air outlet cylinder is gradually reduced along with the inlet air, and once backfire occurs, the existing burner is easy to explode.

To this end, a safety anti-backfire burner is provided for further increasing the safety problem of backfire prevention on the basis of the intake air pressure

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-backfire safety burner to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the anti-backfire safety burner comprises a burner shell, wherein the upper end of the burner shell is provided with a combustion cavity, the upper end surface of the burner shell is arranged on the lower end surface of a mounting plate, the lower end of the combustion chamber is communicated with an anti-backfire inner chamber, the upper end of the anti-backfire inner chamber is provided with a first tapered reducer pipe, the inner chamber at the middle section of the anti-backfire inner chamber is provided with a first buffer plate and a second buffer plate which are linearly distributed and are parallel to each other, the lower end of the anti-backfire inner chamber is communicated with an air inlet, a first heat dissipation plate is arranged in the middle of the upper end surface of the first buffer plate, a first arc-shaped flame retardant plate is fixedly arranged on the upper end surface of the first heat dissipation plate, a first circular ring-shaped uniformly-distributed copper mesh is arranged on the outer side of the first heat dissipation plate, the middle of the upper end face of the second buffer plate is provided with a second uniformly distributed copper net, the outer side of the second uniformly distributed copper net is provided with a circular second heat dissipation plate, and the upper end of the second heat dissipation plate is fixedly provided with a second arc-shaped flame retardant plate.

Preferably, a flame spraying port is formed in the middle of the upper end face of the mounting plate, a protective ring is fixedly sleeved on the inner wall of the flame spraying port, the lower end of the flame spraying port is communicated with the combustion cavity, and the inner diameter of the flame spraying port is smaller than that of the combustion cavity.

Preferably, the lower end of the anti-tempering inner cavity is provided with a second taper pipe, the anti-tempering inner cavity is communicated with the air inlet through the second taper pipe, the inner diameter of the second taper pipe is gradually increased from bottom to top, and the upper end of the second taper pipe is over against a second uniform copper mesh at the middle position of the second buffer plate.

Preferably, the upper end of the first arc-shaped flame-retardant plate is right opposite to the first tapered reducer pipe, the upper end face of the first arc-shaped flame-retardant plate is flush with the upper end face of the first buffer plate, and the outer diameter of the upper end of the first arc-shaped flame-retardant plate is equal to the minimum inner diameter of the upper end of the first tapered reducer pipe.

Preferably, the first tapered reducer pipe is communicated with the anti-backfire inner cavity and the combustion cavity, and the inner diameter of the first tapered reducer pipe is gradually reduced from bottom to top.

Preferably, the upper end of the second arc-shaped flame-retardant plate is over against the first uniformly distributed copper mesh, and the upper end of the second uniformly distributed copper mesh is over against the first heat-dissipating plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the reducing pipe and the copper mesh are arranged, so that the inner force of the air inlet is reduced, the area of the air inlet airflow is reduced, the pressure in the air inlet cavity is larger than that in the combustion cavity, and the purpose of tempering prevention is achieved;

2. the utility model discloses a parallel buffer board about setting up utilizes the copper mesh of buffer board to realize slowing down the purpose that the air current admits air, utilizes the fire-retardant board of arc that crisscross distribution each other on the adjacent buffer board, realizes the separation to flame after tempering, and then prevents that flame from stretching to the air inlet.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded view of the first buffer board in the three-dimensional structure of the present invention;

fig. 3 is an exploded view of the second buffer board three-dimensional structure of the present invention.

In the figure: the burner comprises a burner shell 1, a burner cavity 2, a mounting plate 3, a flame spraying port 4, a protective ring 5, a first conical reducing pipe 6, an anti-tempering inner cavity 7, a first buffer plate 8, a second buffer plate 9, a second conical reducing pipe 10, an air inlet 11, a first uniform copper mesh 12, a first heat dissipation plate 13, a first arc-shaped flame retardant plate 14, a second uniform copper mesh 15, a second heat dissipation plate 16 and a second arc-shaped flame retardant plate 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution:

anti-backfire safety burner, including combustor shell 1, combustor shell 1's upper end is provided with combustion chamber 2, the lower terminal surface at mounting panel 3 is installed to combustor shell 1's up end, flame jet 4 has been seted up in the middle of mounting panel 3's the up end, flame jet 4's inner wall is fixed to be cup jointed guard ring 5, flame jet 4's lower extreme intercommunication combustion chamber 2, flame jet 4's internal diameter is less than combustion chamber 2's internal diameter, utilize flame jet 4 and the intercommunication between the combustion chamber 2, and then make combustion flame from flame jet 4 concentrated blowout completely.

The lower extreme intercommunication anti-backfire inner chamber 7 in combustion chamber 2, the upper end of anti-backfire inner chamber 7 is provided with first toper reducing pipe 6, first toper reducing pipe 6 intercommunication anti-backfire inner chamber 7 and combustion chamber 2, the internal diameter from the bottom up of first toper reducing pipe 6 reduces gradually, utilize first toper reducing pipe 6 to reduce the area of admitting air that combustion gas got into combustion chamber 2, and then make anti-backfire inner chamber 7 interior pressure be greater than combustion chamber 2 interior pressure, thereby reach the purpose of anti-backfire.

The lower end of the anti-tempering inner cavity 7 is communicated with the air inlet 11, the lower end of the anti-tempering inner cavity 7 is provided with a second taper diameter changing pipe 10, the anti-tempering inner cavity 7 is communicated with the air inlet 11 through the second taper diameter changing pipe 10, the inner diameter of the second taper diameter changing pipe 10 is gradually increased from bottom to top, the upper end of the second taper diameter changing pipe 10 is just opposite to a second uniform copper mesh 15 at the middle position of the second buffer plate 9, the air inlet area is increased through the second taper diameter changing pipe 10, and the air inlet pressure of the air inlet 11 is buffered.

The interlude inner chamber of anti-backfire inner chamber 7 is provided with the first buffer board 8 and the second buffer board 9 that are parallel to each other of linear distribution, be provided with first heating panel 13 in the middle of the up end of first buffer board 8, the up end fixed mounting of first heating panel 13 has the fire-retardant board 14 of first arc, the upper end of the fire-retardant board 14 of first arc is just to first toper reducing pipe 6, the up end of the fire-retardant board 14 of first arc flushes with the up end of first buffer board 8, the upper end external diameter of the fire-retardant board 14 of first arc equals the minimum internal diameter in upper end of first toper reducing pipe 6, utilize the fire-retardant board 14 of first arc to block stretching of flame when 2 backfire in combustion chamber, prevent to cause the direct impact of flame to the air inlet.

The outer side of the first heat dissipation plate 13 is provided with a circular first uniform copper mesh 12, the middle of the upper end face of the second buffer plate 9 is provided with a second uniform copper mesh 15, and the purposes of air inlet and air transportation are achieved by means of the first uniform copper mesh 12 and the second uniform copper mesh 15.

The outside of second equipartition copper mesh 15 is provided with annular second heating panel 16, the fixed fire-retardant board 17 of second arc that is provided with in upper end of second heating panel 16, the fire-retardant board 17 of second arc upper end is just to first equipartition copper mesh 12, the upper end of second equipartition copper mesh 15 is just to first heating panel 13, utilize the fire-retardant board 14 of first arc and the fire-retardant board 17 of second arc of mutual staggered distribution on the adjacent buffer board, realize the separation to flame after the tempering, and then prevent that flame from stretching to air inlet 11.

The working principle is as follows: firstly, the communication between the flame spraying port 4 and the combustion chamber 2 is utilized, and then the combustion flame is completely sprayed out from the flame spraying port 4 in a centralized manner, the air inlet area of the combustion gas entering the combustion chamber 2 is reduced by utilizing the first tapered reducer 6, and further the internal pressure of the anti-backfire inner cavity 7 is larger than the internal pressure of the combustion chamber 2, so that the anti-backfire purpose is achieved, the air inlet area is increased by utilizing the second tapered reducer 10, the air inlet airflow pressure of the air inlet 11 is buffered, the flame spreading when the combustion chamber 2 is backfire is blocked by utilizing the first arc-shaped flame-retardant plates 14, the direct impact of the flame on the air inlet is prevented, the blocking of the flame after the backfire is realized by utilizing the first arc-shaped flame-retardant plates 14 and the second arc-shaped flame-retardant plates 17 which are mutually distributed in a.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Anti-backfire safety burner, including combustor shell (1), its characterized in that: the burner is characterized in that a combustion chamber (2) is arranged at the upper end of a burner shell (1), the upper end face of the burner shell (1) is arranged on the lower end face of a mounting plate (3), the lower end of the combustion chamber (2) is communicated with an anti-tempering inner chamber (7), a first conical reducer pipe (6) is arranged at the upper end of the anti-tempering inner chamber (7), a first buffer plate (8) and a second buffer plate (9) which are linearly distributed and parallel to each other are arranged in the middle section inner chamber of the anti-tempering inner chamber (7), the lower end of the anti-tempering inner chamber (7) is communicated with an air inlet (11), a first heat dissipation plate (13) is arranged in the middle of the upper end face of the first buffer plate (8), a first arc-shaped flame-retardant plate (14) is fixedly arranged on the upper end face of the first heat dissipation plate (13), a first circular ring-shaped uniform copper mesh (12) is arranged on the outer side of the first heat dissipation plate (13), a, the outer side of the second uniformly distributed copper mesh (15) is provided with a circular second heat dissipation plate (16), and the upper end of the second heat dissipation plate (16) is fixedly provided with a second arc-shaped flame retardant plate (17).

2. The anti-flashback safety burner of claim 1, wherein: the flame spraying device is characterized in that a flame spraying opening (4) is formed in the middle of the upper end face of the mounting plate (3), a protective ring (5) is fixedly sleeved on the inner wall of the flame spraying opening (4), the lower end of the flame spraying opening (4) is communicated with the combustion cavity (2), and the inner diameter of the flame spraying opening (4) is smaller than that of the combustion cavity (2).

3. The anti-flashback safety burner of claim 1, wherein: the lower extreme of anti-tempering inner chamber (7) is provided with second taper pipe (10), and anti-tempering inner chamber (7) are through second taper pipe (10) intercommunication air inlet (11), the internal diameter from the bottom up of second taper pipe (10) is crescent, and the upper end of second taper pipe (10) is just to second equipartition copper mesh (15) of second buffer board (9) intermediate position.

4. The anti-flashback safety burner of claim 1, wherein: the upper end of the first arc-shaped flame-retardant plate (14) is just opposite to the first tapered reducer pipe (6), the upper end face of the first arc-shaped flame-retardant plate (14) is flush with the upper end face of the first buffer plate (8), and the outer diameter of the upper end of the first arc-shaped flame-retardant plate (14) is equal to the minimum inner diameter of the upper end of the first tapered reducer pipe (6).

5. The anti-flashback safety burner of claim 1, wherein: the first conical reducing pipe (6) is communicated with the anti-backfire inner cavity (7) and the combustion cavity (2), and the inner diameter of the first conical reducing pipe (6) is gradually reduced from bottom to top.

6. The anti-flashback safety burner of claim 1, wherein: the upper end of the second arc-shaped flame-retardant plate (17) is over against the first uniform copper mesh (12), and the upper end of the second uniform copper mesh (15) is over against the first heat-dissipation plate (13).