CN216281373U

CN216281373U - Flame burner with forced air supply semi-premixing structure

Info

Publication number: CN216281373U
Application number: CN202122181266.9U
Authority: CN
Inventors: 魏涛; 徐俊
Original assignee: Suzhou Aikesen Fuel Control Technology Co ltd
Current assignee: Suzhou Aikesen Fuel Control Technology Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-04-12
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a flame burner with a forced air supply semi-premixing structure, which belongs to the technical field of flame burners and comprises a flame burner assembly, wherein the flame burner assembly comprises a shell assembly and a combustion device assembly, the combustion device assembly is assembled inside the shell assembly, fuel gas is introduced through a fuel gas shell, air is introduced into the air shell, the fuel gas enters a hollow groove and enters the inside of a fuel gas pipe through a through hole, the fuel gas is diffused through a fuel gas burner head, the air is conveyed forwards to be mixed with the fuel gas through an air swirl disc, the fuel gas is ignited through an ignition detection electrode, the combustion effect is better through the mixing of the fuel gas and the air, the fuel gas pressure is detected through a fuel gas pressure measuring hole, the air pressure is detected through an air pressure measuring hole, the air pressure can be adjusted at any time according to the actual condition, the burner with the structure is simple in structure, convenient to operate and convenient to maintain, can meet the heating requirements of most industrial furnaces.

Description

Flame burner with forced air supply semi-premixing structure

Technical Field

The utility model belongs to the technical field of flame burners, and particularly relates to a flame burner with a forced air supply semi-premixing structure.

Background

Combustion methods of gas fuel can be roughly divided into two types according to the difference of the mixing degree of gas and air before combustion: the two combustion devices are named as a flame burner (low-pressure burner) and a flameless burner (high-pressure injection burner). The flame burner has the characteristics that:

1. the gas and the air are mixed and burnt in the furnace, and the burning speed is relatively slow. The combustion speed depends on the mixing speed of the gas and the air.

2. The air excess factor is required to be large, and is generally 1.15 to 1.25.

3. Because of the slow burning rate and the long flame, the temperature distribution along the length of the flame is relatively stable.

4. As the gas is mixed and combusted, hydrocarbon in the fuel gas is easy to pyrolyze to separate out carbon particles, which is beneficial to improving the blackness of flame and enhancing the radiation heat transfer of the flame.

5. Because the gas and the air are mixed in the hearth, the preheating temperature of the gas and the air is not limited, thereby being beneficial to improving the combustion temperature and saving energy.

6. A booster fan is generally required to assist combustion and a cold air duct is required to supply air for combustion.

7. The flame combustion capability is large, the structure is compact, and the arrangement on a large furnace is easy.

The existing burner has the defects of complex structure, inconvenient operation and difficult maintenance, and cannot meet the heating requirements of most industrial furnaces.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flame burner with a forced air supply semi-premixing structure, aiming at the problems of complicated structure, inconvenient operation, difficult maintenance and incapability of meeting the heating requirements of most industrial furnaces and kilns of the existing burner.

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a there is flame nozzle of half premix structure of forced air feed, includes flame nozzle assembly, there is flame nozzle assembly include shell assembly and burner assembly, burner assembly assemble in the inside of shell assembly.

Preferably, the shell assembly comprises a shell, the shell is hollow inside, one end of the inner side of the shell is provided with a blocking block, one end of the shell is provided with a sliding silicon combustion chamber, the outer wall of the shell close to one end of the sliding silicon combustion chamber is provided with a mounting flange, and one end of the shell far away from the mounting flange is provided with a gas shell.

Preferably, the inside that the gas casing stretched into the inside sprue of casing is provided with the dead slot, one side of dead slot is provided with the through-hole, the through-hole link up with casing internal hollow department, be equipped with air casing on the outer wall of casing is close to the position of gas casing, air casing link up with the inside of casing, be provided with the jack of symmetry on the sprue, the outer wall of casing is close to and is provided with the gas pressure measurement hole on positive position, be provided with the air pressure measurement hole on being close to the position of gas pressure measurement hole, carry the gas through gas casing, get into the air through air casing, be used for the installation through mounting flange.

Preferably, burner assembly include air whirl dish, the center department at the back of air whirl dish be equipped with the gas pipe, the air whirl dish back of the both sides of gas pipe is equipped with the ignition detection electrode of symmetry, the top of ignition detection electrode is equipped with the gas shower nozzle, gas shower nozzle and gas pipe intercommunication, spout the gas through the gas shower nozzle, ignite through ignition detection electrode to gas shower nozzle department spun gas.

Preferably, the ignition detection electrode passes through the insertion hole, and the gas pipe is inserted into the through hole.

Advantageous effects

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

(1) according to the utility model, the gas is introduced through the gas shell, the air shell is introduced into the air, the gas enters the empty groove and enters the inside of the gas pipe through the through hole, the gas is diffused through the gas nozzle, the air is conveyed forwards through the air cyclone disc to be mixed with the gas, the gas is ignited through the ignition detection electrode, the combustion effect is better through the mixing of the gas and the air, the gas pressure is detected through the gas pressure measuring hole, the air pressure is detected through the air pressure measuring hole, the adjustment can be carried out at any time according to the actual condition, the structure of the burner with the structure is simple, the operation is convenient, the maintenance is convenient, and the heating requirement of most industrial furnaces can be met.

Drawings

FIG. 1 is a schematic view of a flame burner of a forced air supply semi-premixing structure according to the present invention;

FIG. 2 is a schematic view of the housing assembly of the present invention;

FIG. 3 is a schematic view of the structure of the combustion apparatus assembly of the present invention.

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:

1. a flame burner assembly;

2. a housing assembly; 21. a housing; 22. a jack; 23. an empty groove; 24. a through hole; 25. a gas housing; 26. an air housing; 27. installing a flange; 28. a sliding silicon combustion chamber; 29. a gas pressure measuring hole; 210. an air pressure cell; 211. blocking;

3. a combustion device assembly; 31. a gas pipe; 32. an air swirl disk; 33. a gas burner; 34. an ignition detection electrode.

Detailed Description

The utility model is further described below in connection with specific embodiments.

Example 1

As shown in fig. 1, which is a schematic structural view of a flamed burner with a forced air supply semi-premixing structure according to a preferred embodiment of the present invention, the flamed burner with a forced air supply semi-premixing structure according to the present embodiment includes a flamed burner assembly 1, the flamed burner assembly 1 includes a housing assembly 2 and a combustion apparatus assembly 3, and the combustion apparatus assembly 3 is assembled inside the housing assembly 2.

As shown in fig. 2, which is a schematic structural diagram of the housing assembly of the present invention, the housing assembly 2 includes a housing 21, the housing 21 is hollow, a plug 211 is assembled at one end of the inner side of the housing 21, a sliding silicon combustion chamber 28 is assembled at one end of the housing 21, an installation flange 27 is assembled on the outer wall of the housing 21 near one end of the sliding silicon combustion chamber 28, a gas housing 25 is assembled at one end of the housing 21 away from the installation flange 27, a hollow groove 23 is formed inside the plug 211 of the gas housing 25 extending into the housing 21, a through hole 24 is formed on one side of the hollow groove 23, the through hole 24 is communicated with the hollow part inside the housing 21, an air housing 26 is assembled on the outer wall of the housing 21 near the gas housing 25, the air housing 26 is communicated with the inside of the housing 21, symmetrical insertion holes 22 are formed on the plug 211, a gas pressure measuring hole 29 is formed on the outer wall of the housing 21 near the front side, an air pressure measuring hole 210 is arranged at a position close to the gas pressure measuring hole 29; the through hole 24, the insertion hole 22 and the hollow inside of the housing 21 are used for assembling the burner assembly 3, the gas pressure measuring hole 29 is used for detecting the pressure of gas, and the air pressure measuring hole 210 is used for detecting the pressure of air.

As shown in fig. 3, which is a schematic structural view of a combustion device assembly of the present invention, the combustion device assembly 3 includes an air swirling disc 32, a gas pipe 31 is assembled at the center of the back of the air swirling disc 32, symmetrical ignition detection electrodes 34 are assembled at the back of the air swirling disc 32 at two sides of the gas pipe 31, a gas nozzle 33 is assembled at the top end of the ignition detection electrodes 34, and the gas nozzle 33 is communicated with the gas pipe 31; gas is introduced through the gas pipe 31, and air is blown forward through the air swirling disc 32.

The ignition detection electrode 34 passes through the insertion hole 22, and the gas pipe 31 is inserted into the through hole 24.

The working principle is as follows: insert the gas through gas casing 25, air casing 26 inserts the air, the gas gets into dead slot 23 and gets into the inside of gas pipe 31 through-hole 24, and through 33 diffusion of gas shower nozzle, carry the air forward through air whirl dish 32 and mix with the gas, ignite to the gas through ignition detection electrode 34, can make combustion effect better through the mixture of gas and air, detect gas pressure through gas pressure measurement hole 29, detect air pressure through air pressure measurement hole 210, can adjust at any time according to actual conditions, the simple structure of the nozzle of above-mentioned structure, and convenient operation, it is convenient to maintain, can adapt to the heating requirement of most industrial furnace kilns.

While the utility model has been described in further detail in connection with specific embodiments thereof, it will be understood that the utility model is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the utility model, which should be considered to be within the scope of the utility model as defined by the appended claims.

Claims

1. A flame burner with a forced air supply semi-premixing structure comprises a flame burner assembly (1),

the method is characterized in that:

the flame burner assembly (1) comprises a shell assembly (2) and a combustion device assembly (3), wherein the combustion device assembly (3) is assembled inside the shell assembly (2).

2. The flamed burner with the forced air supply semi-premixing structure as recited in claim 1, wherein: shell assembly (2) include casing (21), casing (21) inside cavity, the inboard one end of casing (21) is equipped with sprue (211), casing (21) one end is equipped with smooth silicon combustion chamber (28), casing (21) outer wall that is close to smooth silicon combustion chamber (28) one end is equipped with mounting flange (27), casing (21) keep away from the one end of mounting flange (27) and is equipped with gas casing (25).

3. A flamed burner with a forced air supply semi-premixing structure as recited in claim 2, wherein: the gas casing (25) stretch into the inside of the inside sprue (211) of casing (21) and be provided with dead slot (23), one side of dead slot (23) is provided with through-hole (24), through-hole (24) link up with the inside cavity department of casing (21), be equipped with air casing (26) on the outer wall of casing (21) is close to the position of gas casing (25), air casing (26) link up with the inside of casing (21), be provided with symmetrical jack (22) on sprue (211), be provided with gas pressure cell (29) on the outer wall of casing (21) is close to positive position, be provided with air pressure cell (210) on the position of being close to gas pressure cell (29).

4. The flamed burner with the forced air supply semi-premixing structure as recited in claim 1, wherein: burner assembly (3) include air whirl dish (32), the center department of the back of air whirl dish (32) be equipped with gas pipe (31), the air whirl dish (32) back of the both sides of gas pipe (31) is equipped with symmetrical ignition detection electrode (34), the top of ignition detection electrode (34) is equipped with gas shower nozzle (33), gas shower nozzle (33) and gas pipe (31) intercommunication.

5. The flamed burner with the forced air supply semi-premixing structure as recited in claim 4, wherein: the ignition detection electrode (34) penetrates through the insertion hole (22), and the gas pipe (31) is inserted into the through hole (24).