CN218914917U

CN218914917U - Air-fuel ratio adjusting burner

Info

Publication number: CN218914917U
Application number: CN202320030015.7U
Authority: CN
Inventors: 杨皓
Original assignee: Dongguan Jiabo Combustion Equipment Technology Co ltd
Current assignee: Dongguan Jiabo Combustion Equipment Technology Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-25
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses an air-fuel ratio adjusting burner, wherein a mixing disc is fixed in a combustion furnace, mixing nozzles are arranged at the top of the mixing disc, a mixing cavity is formed in the mixing disc, an air distribution disc is fixed at the bottom of the mixing cavity, an annular air distribution cavity is formed in the air distribution disc, the annular air distribution cavity is communicated with a fuel gas conveying pipe, a driving disc is rotatably arranged at the top of the air distribution disc, a circular air distribution cavity is formed in the driving disc, the circular air distribution cavity is communicated with an air conveying pipe, fuel gas nozzles are uniformly arranged on the air distribution disc, stirring blades arranged above the fuel gas nozzles are uniformly and fixedly connected to the outer side wall of the driving disc, air supply pipes communicated with the circular air distribution cavity are fixedly connected to the same side of each stirring blade, and air supply nozzles are uniformly arranged on each air supply pipe. The utility model discloses a can simplify the overall structure of combustor, can improve the mixed effect of gas and air, can carry out comparatively accurate regulation and then improve the combustion efficiency of gas to the air-fuel ratio.

Description

Air-fuel ratio adjusting burner

Technical Field

The utility model relates to the technical field of gas burners, in particular to an air-fuel ratio adjusting burner.

Background

The gas burner needs to input the air and the gas required by combustion into a mixing box (or a mixing cylinder) at the outer side of the combustion furnace, uniformly inputs the air and the gas into the inner side of the combustion furnace after primary mixing is completed in the mixing box, and ignites an igniter additionally arranged in the combustion furnace for combustion.

Because the mixing components (mixing box and mixing cylinder) matched with the conventional gas burner are arranged on the outer side of the combustion furnace, the whole structure of the burner is relatively bulky, the problem of complex operation exists during installation, and the utilization rate of surrounding space is greatly reduced.

At present, the mixing component of the burner is used for mixing by utilizing the natural flowing states of air and fuel gas, the mixing effect is poor, the uniformity of the air and fuel gas is poor, the combustion effect of the fuel gas is further affected, and the energy consumption is increased intangibly for the external power equipment with the stirring and mixing component.

When the traditional burner mixes the air-fuel ratio, the control flow valves for controlling the fuel gas and the air through production and experience are often needed, the subjective influence is large, and the air-fuel ratio in actual combustion is difficult to accurately determine.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the air-fuel ratio adjusting burner, which can simplify the whole structure of the burner, improve the mixing effect of fuel gas and air, and accurately adjust the air-fuel ratio so as to improve the combustion efficiency of the fuel gas.

The technical scheme adopted by the utility model for achieving the purpose is as follows: the utility model provides an air-fuel ratio adjusts combustor, includes combustion furnace, mixing disc, gas distribution disc, driving disc, the inboard bottom fixed mounting of combustion furnace has mixing disc, the mixing disc top evenly has arranged multiunit mixing nozzle, the mixing chamber that is linked together with mixing nozzle has been seted up to mixing disc inside, gas distribution disc fixed mounting is in mixing chamber bottom, and has seted up annular gas distribution chamber in the gas distribution disc, annular gas distribution chamber intercommunication has the gas conveyer pipe of arranging in the combustion furnace outside, the driving disc rotates to install in gas distribution disc top, and has seted up circular gas distribution chamber in the driving disc, circular gas distribution chamber intercommunication has the air conveyer pipe of arranging in the combustion furnace outside, evenly arranged on the gas distribution disc and arranged driving disc outlying gas spout, and each group gas spout keeps the intercommunication with annular gas distribution chamber, the even rigid coupling of lateral wall of driving disc has the stirring leaf of arranging in gas spout top, and the same one side of each stirring leaf all rigid coupling has the air supply pipe that is linked together with circular gas distribution chamber, evenly has the air supply spout that keeps vertical distribution with corresponding stirring leaf on each air supply pipe.

In some implementations, in order to ensure that the gas distribution disc and the driving disc can be stably installed in the mixing cavity inside the mixing disc and stably installed in the combustion furnace, the following technical scheme is provided.

The combustion furnace is characterized in that an installation base is fixedly installed at the bottom of the inner side of the combustion furnace, a plurality of groups of vertically arranged screw rods are fixedly connected to the outer edge of the installation base uniformly, the bottom of the mixing disc is communicated with the mixing cavity, installation through holes which are in nested combination with the screw rods are uniformly formed in the outer edge of the mixing disc, the mixing disc and the installation base are fixedly combined through nuts which are screwed on the screw rods, and the air distribution disc is fixedly installed on the installation base.

In some implementations, in order to ensure that the annular gas distribution cavity in the gas distribution disc can be stably communicated with the gas conveying pipe, the following technical scheme is provided.

The bottom of the outer side of the combustion furnace is fixedly provided with a fuel gas communicating disc, an annular communicating cavity is formed in the fuel gas communicating disc, the fuel gas conveying pipe is communicated with the annular communicating cavity, the annular communicating cavity is communicated with the annular air distribution cavity through a plurality of groups of fuel gas communicating pipes which are uniformly arranged, and each group of fuel gas communicating pipes penetrate through the bottom wall of the combustion furnace and are arranged on the mounting base.

In some implementations, the following technical scheme is provided for ensuring that the circular air distribution cavity in the driving disc can be stably communicated with the air conveying pipe.

The gas communication dish bottom rigid coupling has the air communication dish, and is provided with the air communication pipe of vertical arrangement in the air communication dish, and the upper and lower both ends of air communication pipe respectively with circular cloth air cavity, air conveying pipe keep the intercommunication, and the air communication pipe runs through annular intercommunication chamber, annular cloth air cavity, cloth gas dish, combustion furnace diapire, installation base and arranges.

In some implementations, in order to ensure that the driving disc can be stably installed on the gas distribution disc, and ensure that the driving disc and the stirring blades do not interfere with the movement of the gas nozzles on the gas distribution disc when rotating, the following technical scheme is provided.

The center of the upper surface of the air distribution disc is fixedly connected with a rotating seat, the driving disc is rotatably mounted on the rotating seat, and the air communicating pipe is arranged at the axle center of the rotating seat and is communicated with the circular air distribution cavity.

In some of the implementations, in the combustion process of the combustion furnace, the following technical scheme is provided for facilitating the accurate control of the mixing proportion of air and gas.

The gas conveying pipe is provided with a first flowmeter and a first switch valve in a matching way, and the air conveying pipe is provided with a second flowmeter, a second switch valve and a pressure pump in a matching way.

The utility model has the beneficial effects that: the driving disc for conveying air and the gas distribution disc for gas during conveying are integrated and mixed, and are integrally assembled to the inner side of the combustion furnace, so that the external structure of the combustion furnace can be simplified, the whole structure of the combustion furnace is simplified, and the installation and arrangement are convenient. When the pressurized air is peripherally input into the mixing disk from the driving disk, the stirring She Wending can be driven to rotate by the reaction force because the common air nozzles and the corresponding stirring blades are kept vertically arranged, so that the mixing uniformity of the fuel gas and the air input into the mixing cavity is improved. The air-fuel ratio can be adjusted by adjusting the opening and closing degree of the first switch valve and the second switch valve and the output power of the pressure pump so as to enable the fuel gas to be fully combusted and increase the combustion efficiency.

Drawings

FIG. 1 is a schematic view of the appearance structure of the present utility model;

FIG. 2 is a schematic view of the burner, based on FIG. 1, after being cut;

FIG. 3 is a schematic view of the structure of the burner after being cut;

FIG. 4 is a schematic view of the structure of the mixing disk, the air distribution disk and the driving disk after being cut;

FIG. 5 is an enlarged detailed schematic view of portion A of FIG. 4;

FIG. 6 is a schematic view of the drive disk and its upper interface components in cross-section;

fig. 7 is a schematic view of the structure of the air distribution plate and the connecting parts thereon after being cut away.

In the figure: 1. a combustion furnace;

2. a mixing tray; 21. a mixing spout; 22. a mixing chamber; 23. a mounting base; 24. a screw; 25. a nut;

3. an air distribution plate; 31. an annular air distribution cavity; 32. a gas delivery pipe; 321. a first flow rate meter; 322. a first switching valve; 33. a gas nozzle; 34. a rotating seat;

4. a drive plate; 41. a circular air distribution cavity; 42. an air delivery pipe; 421. a second flow rate meter; 422. a second switching valve; 423. a pressurizing pump; 43. stirring the leaves; 44. an air supply pipe; 45. an air supply nozzle;

51. a fuel gas communication disc; 52. an annular communication cavity; 53. a gas communicating pipe;

61. an air communication tray; 62. an air communicating tube;

71. an outer layer through hole; 72. and an inner layer through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the air-fuel ratio adjusting burner comprises a combustion furnace 1, a mixing disc 2, an air distribution disc 3 and a driving disc 4, wherein the mixing disc 2 is fixedly arranged at the bottom of the inner side of the combustion furnace 1, a plurality of groups of mixing nozzles 21 are uniformly distributed at the top of the mixing disc 2, a mixing cavity 22 communicated with the mixing nozzles 21 is formed in the mixing disc 2, the air distribution disc 3 is fixedly arranged at the bottom of the mixing cavity 22, an annular air distribution cavity 31 is formed in the air distribution disc 3, the annular air distribution cavity 31 is communicated with a gas conveying pipe 32 arranged at the outer side of the combustion furnace 1, the driving disc 4 is rotatably arranged at the top of the air distribution disc 3, a circular air distribution cavity 41 is formed in the driving disc 4, the circular air distribution cavity 41 is communicated with an air conveying pipe 42 arranged at the outer side of the combustion furnace 1, the gas nozzles 33 arranged at the periphery of the driving disc 4 are uniformly distributed on the air distribution disc 3, the groups of gas nozzles 33 are communicated with the annular air distribution cavity 31, stirring blades 43 arranged above the gas nozzles 33 are uniformly and fixedly connected to the outer side wall of the driving disc 4, one side of each stirring blade 43 is fixedly connected with a circular air supply pipe 44 communicated with the circular air distribution cavity 41, and the air supply pipe 44 is uniformly distributed with the corresponding air supply pipe 45.

The gas delivery pipe 32 is used for delivering the gas (natural gas or coal gas is selected) with a certain pressure for combustion into the annular gas distribution cavity 31 in the gas distribution disc 3, and uniformly spraying the gas into the mixing cavity 22 through the gas nozzles 33 uniformly arranged on the gas delivery pipe.

The air delivery pipe 42 is used for inputting the air after the pressurization into the circular air distribution cavity 41, and then evenly spouts from the rear side corresponding to the stirring blade 43 through the air supply nozzle 45 on the air supply pipe 44, and can drive the whole that the driving disc 4, stirring blade 43 constitute to rotate steadily under the effect of recoil power, and the gas in the mixing cavity 22 can be fully mixed with the air to the stirring blade 43 that rotates.

The mixed fuel gas and air can be uniformly sprayed into the combustion furnace 1 through the mixing nozzle 21, and an igniter matched with the combustion furnace 1 ignites and ignites the air and fuel gas mixed gas input into the mixed gas, so that the combustion effect of the combustion furnace 1 is realized.

In order to ensure that the gas distribution plate 3 and the driving plate 4 can be stably arranged in the mixing cavity 22 inside the mixing plate 2 and stably arranged in the combustion furnace 1, the following technical scheme is also provided.

The bottom of the inner side of the combustion furnace 1 is fixedly provided with a mounting base 23, the outer edge of the mounting base 23 is uniformly fixedly connected with a plurality of groups of vertically arranged screw rods 24, the bottom of the mixing disc 2 is communicated with the mixing cavity 22, the outer edge of the mixing disc 2 is uniformly provided with mounting through holes which are nested and combined with the screw rods 24, the mixing disc 2 and the mounting base 23 are fixedly combined through nuts 25 screwed on the screw rods 24, and the air distribution disc 3 is fixedly mounted on the mounting base 23.

The whole that installation base 23 and mixing dish 2 combination formed can guarantee the sealed effect of mixing chamber 22 self, after disassembling installation base 23 and mixing dish 2, can guarantee that driving disk 4, gas distribution dish 3 are stable, quick installation in mixing chamber 22, and the convenience is changed each part in mixing chamber 22, is maintained.

In order to ensure that the annular gas distribution cavity 31 in the gas distribution plate 3 can be stably communicated with the gas conveying pipe 32, the following technical scheme is provided.

The bottom outside the combustion furnace 1 is fixedly provided with a fuel gas communicating disc 51, an annular communicating cavity 52 is formed in the fuel gas communicating disc 51, the fuel gas conveying pipe 32 is communicated with the annular communicating cavity 52, the annular communicating cavity 52 is communicated with the annular air distribution cavity 31 through a plurality of groups of fuel gas communicating pipes 53 which are uniformly arranged, and each group of fuel gas communicating pipes 53 penetrate through the bottom wall of the combustion furnace 1 and the mounting base 23.

The fuel gas conveyed by the fuel gas conveying pipe 32 is vertically arranged in the annular communicating cavity 52, and then is conveyed into the annular gas distribution cavity 31 through each group of fuel gas communicating pipes 53 which are uniformly distributed, and is further uniformly conveyed into the mixing cavity 22 through the fuel gas nozzles 33 so as to be uniformly mixed with the air conveyed into the mixing cavity 22.

In order to ensure that each gas communicating pipe 53 does not interfere with the bottom wall and the mounting base 23 of the combustion furnace 1, an outer layer through hole 71 which is arranged corresponding to each gas communicating pipe 53 is arranged on the bottom wall and the mounting base 23 of the combustion furnace 1, and the gas communicating pipes 53 are arranged in the outer layer through holes 71.

In order to ensure that the circular air distribution cavity 41 in the driving disc 4 can be stably communicated with the air conveying pipe 42, the following technical scheme is provided.

The air communicating disc 61 is fixedly connected to the bottom of the gas communicating disc 51, the air communicating disc 61 is provided with an air communicating tube 62 which is vertically arranged, the upper end and the lower end of the air communicating tube 62 are respectively communicated with the circular air distribution cavity 41 and the air conveying pipe 42, and the air communicating tube 62 penetrates through the annular communicating cavity 52, the annular air distribution cavity 31, the air distribution disc 3, the bottom wall of the combustion furnace 1 and the mounting base 23.

The air conveyed by the air conveying pipe 42 is conveyed into the circular air distribution cavity 41 through the air communicating pipe 62, and then conveyed into the mixing cavity 22 through the air supply pipe 44 and the air supply nozzles 45 arranged on the air supply pipe, and the air conveying pipe can be fully mixed with the fuel gas conveyed into the air conveying pipe while driving the driving disk 4 and the stirring blades 43 to rotate.

In order to ensure that the air communication pipe 62 does not interfere with the bottom wall of the combustion furnace 1 and the mounting base 23 in space, an inner layer through hole 72 arranged inside the outer layer through hole 71 is formed in the bottom wall of the combustion furnace 1 and the mounting base 23, and the air communication pipe 62 is arranged in the inner layer through hole 72.

In order to ensure that the driving disc 4 can be stably installed on the gas distribution disc 3 and simultaneously ensure that the driving disc 4 and the stirring blades 43 do not interfere with the movement of the gas nozzles 33 on the gas distribution disc 3 during rotation, the following technical scheme is provided.

The center of the upper surface of the air distribution disc 3 is fixedly connected with a rotating seat 34, the driving disc 4 is rotatably arranged on the rotating seat 34, and an air communicating pipe 62 is arranged at the axle center of the rotating seat 34 and is communicated with the circular air distribution cavity 41.

The arrangement of the rotating seat 34 can raise the installation positions of the driving disc 4 and the stirring blades 43 so as to avoid the spatial interference with the gas nozzle 33 in the operation process, and meanwhile, the arrangement of the rotating seat 34 can also ensure that the circular gas distribution cavity 41 is stably communicated with the air communicating pipe 62.

In the combustion process of the combustion furnace 1, the following technical scheme is provided for facilitating the accurate control of the mixing proportion of air and fuel gas.

The gas delivery pipe 32 is provided with a first flowmeter 321 and a first switch valve 322 in a matching way, and the air delivery pipe 42 is provided with a second flowmeter 421, a second switch valve 422 and a pressure pump in a matching way.

The actual mixing ratio of the gas and the air is determined by the flow rates of the gas and the air detected by the first flow rate meter 321 and the second flow rate meter 421, and the air-fuel ratio can be adjusted by adjusting the opening and closing degree of the first switch valve 322 and the second switch valve 422 and the output power of the pressure pump, so that the gas is fully combusted, and the combustion efficiency is increased.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The burner is adjusted to air-fuel ratio, its characterized in that: comprises a combustion furnace (1), a mixing disc (2), an air distribution disc (3) and a driving disc (4), wherein the bottom of the inner side of the combustion furnace (1) is fixedly provided with the mixing disc (2), a plurality of groups of mixing nozzles (21) are uniformly distributed at the top of the mixing disc (2), a mixing cavity (22) communicated with the mixing nozzles (21) is formed in the mixing disc (2), the air distribution disc (3) is fixedly arranged at the bottom of the mixing cavity (22), the air distribution disc (3) is provided with an annular air distribution cavity (31), the annular air distribution cavity (31) is communicated with a gas conveying pipe (32) arranged on the outer side of the combustion furnace (1), the driving disc (4) is rotatably arranged at the top of the air distribution disc (3), a circular air distribution cavity (41) is formed in the driving disc (4), air conveying pipes (42) arranged on the outer side of the combustion furnace (1) are uniformly distributed, the air distribution disc (3) is uniformly provided with gas nozzles (33) arranged on the periphery of the driving disc (4), the groups of gas nozzles (33) are fixedly connected with the gas distribution cavity (33) on the outer side of the driving disc (4), the same side of each stirring blade (43) is fixedly connected with a wind supply pipe (44) communicated with the circular air distribution cavity (41), and wind supply nozzles (45) which are vertically distributed with the corresponding stirring blade (43) are uniformly distributed on each wind supply pipe (44).

2. The air-fuel ratio-adjusted burner of claim 1, wherein: the utility model discloses a combustion furnace, including burning furnace (1), including burning furnace (2), base (23), gas distribution dish (3), base (23) are installed to inboard bottom fixed mounting of burning furnace (1), the outer fringe of base (23) evenly rigid coupling has screw rod (24) of multiunit vertical arrangement, mixing dish (2) bottom and mixing chamber (22) keep the intercommunication, and mixing dish (2) outer fringe evenly set up with the installation through-hole of the nested combination of screw rod (24), and mixing dish (2) and base (23) are through the nut (25) fixed combination of spin-on screw rod (24), gas distribution dish (3) fixed mounting is to on base (23).

3. The air-fuel ratio-adjusted burner of claim 2, wherein: the gas combustion device is characterized in that a gas communication disc (51) is fixedly arranged at the bottom of the outer side of the combustion furnace (1), an annular communication cavity (52) is formed in the gas communication disc (51), the gas conveying pipe (32) is communicated with the annular communication cavity (52), the annular communication cavity (52) is communicated with the annular gas distribution cavity (31) through a plurality of groups of gas communication pipes (53) which are uniformly arranged, and each group of gas communication pipes (53) penetrate through the bottom wall of the combustion furnace (1) and the mounting base (23).

4. The air-fuel ratio-adjusted burner according to claim 3, characterized in that: the gas communication tray (51) bottom rigid coupling has air communication tray (61), and is provided with air communication pipe (62) of vertical arrangement in air communication tray (61), and the upper and lower both ends of air communication pipe (62) respectively with circular cloth air cavity (41), air conveying pipe (42) keep the intercommunication, and annular intercommunication chamber (52), annular cloth air cavity (31), cloth air tray (3), combustion furnace (1) diapire, installation base (23) are run through to air communication pipe (62).

5. The air-fuel ratio-adjusted burner of claim 4, wherein: the air distribution disc (3) is fixedly connected with a rotating seat (34) at the center of the upper surface, the driving disc (4) is rotatably mounted on the rotating seat (34), and the air communicating pipe (62) is arranged at the axle center of the rotating seat (34) and is communicated with the circular air distribution cavity (41).

6. The air-fuel ratio-adjusted burner of claim 1, wherein: the gas delivery pipe (32) is provided with a first flowmeter (321) and a first switch valve (322) in a matching way, and the air delivery pipe (42) is provided with a second flowmeter (421), a second switch valve (422) and a pressure pump in a matching way.