Direct injection suspension type burner

Abstract

The utility model discloses a direct injection suspension type combustor which comprises a combustor shell, an air inlet pipe arranged at the bottom of the combustor shell, an opening formed in the top of the combustor shell, a mixing seat installed in the opening of the combustor shell, a mixing cavity formed in the mixing seat, a through hole formed in the bottom of the mixing cavity of the mixing seat, and a first ventilation plate installed at the bottom of the through hole. A plurality of air inlet holes are evenly formed in the first ventilation plate, a second ventilation plate is installed on the top of the through hole, a plurality of air outlet holes are evenly formed in the second ventilation plate, a gas nozzle is further installed between the first ventilation plate and the second ventilation plate, and the input end of the gas nozzle penetrates through the first ventilation plate and is connected with a gas pipe. The mixing seat is provided with a plurality of air holes in the periphery of the mixing cavity, the air holes are obliquely arranged along the circumference of the mixing cavity, the top of the burner shell is provided with a fire distribution cover, the top face of the fire distribution cover is of an inwards-concave structure, and the fire distribution cover is provided with a plurality of evenly-arranged direct fire spraying holes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combustor, specifically relates to direct injection suspension type combustor. BACKGROUND

[0002] With the combustor, it is the device that makes fuel and air to be mixed and combusted in a certain way, and according to its working principle, the combustor can be defined as a kind of equipment that converts heat energy through the chemical reaction of combustion, that is, air and fuel are mixed by a premixing device according to the appropriate proportion to make them fully combust. The combustor is a kind of heat energy device that sends fuel and air into the furnace according to the required concentration, speed, turbulence and mixing mode, and makes the fuel can be ignited and combusted stably in the furnace.

[0003] At present, the high efficiency, environmental protection and easy processing of the combustor are the direction of industry development and pursuit, however, the existing combustor generally exists in the uneven mixing of air and gas when being used, so that the combustion is insufficient, the heat efficiency is not high, and the content of C0 in the flue gas is too high, therefore, a direct injection suspension type combustor is urgently needed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the above background art, the purpose of the utility model is to provide a direct injection suspension type combustor.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] The direct injection suspension type combustor comprises a combustor shell, an air inlet pipe is arranged at the bottom of the combustor shell, an opening is arranged at the top of the combustor shell, a mixing seat is arranged in the opening of the combustor shell, a mixing cavity is arranged in the mixing seat, a through hole is arranged at the bottom of the mixing cavity of the mixing seat, a first ventilation plate is arranged at the bottom of the through hole, a plurality of air inlet holes are arranged on the first ventilation plate, a second ventilation plate is arranged at the top of the through hole, a plurality of air outlet holes are arranged on the second ventilation plate, a gas nozzle is arranged between the first ventilation plate and the second ventilation plate, the output end of the gas nozzle is arranged in the mixing cavity, the input end of the gas nozzle penetrates through the first ventilation plate and is connected with a gas pipe, the other side of the gas pipe penetrates through the combustor shell and extends to the outside of the combustor shell, a plurality of air holes are arranged on the circumference of the mixing cavity of the mixing seat, the plurality of air holes are arranged in an inclined manner along the circumference of the mixing cavity, a distributor is arranged at the top of the combustor shell, the output end of the mixing cavity is arranged in the distributor, the top surface of the distributor is arranged in a concave structure, a plurality of direct injection holes are arranged on the distributor in a uniform manner.

[0007] Further limited, several said air inlet and several said air outlet are circularly arranged and uniformly arranged outside the gas jet head. Such a structure design enables air to be uniformly input into the mixing chamber and mixed with the gas sprayed by the gas jet head.

[0008] Further limited, the bottom of the gas jet head is provided with a threaded connecting column, the gas pipe is provided with an internal thread at the corresponding threaded connecting column, and the gas jet head is connected with the gas pipe through the threaded locking connection of the threaded connecting column and the internal thread. Such a structure design enables the gas jet head and the gas pipe to be fixedly connected and installed.

[0009] Further limited, the gas jet head is in a T-shaped structure, the gas jet head is pressed on the second ventilation plate, and the top of the gas pipe is arranged on the bottom of the first ventilation plate. Such a structure design has the effect of limiting and fixing the first ventilation plate and the second ventilation plate.

[0010] Further limited, the burner shell is provided with a plurality of uniformly arranged placing racks outside the damper cover. Such a structure design facilitates subsequent support of the pot.

[0011] The beneficial effects of the utility model are as follows: the air is input in two ways to mix with the gas, so that the air and the gas can form a rotational flow, the air and the gas continuously collide and mix, the contact between the air and the gas is increased, the mixing effect is enhanced, the subsequent combustion through the straight jet hole can achieve sufficient combustion effect, the heat efficiency is improved, the CO content in flue gas is reduced, and the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0013] Fig. 1 It is a shaft side structure schematic view of the straight jet suspension type burner of the utility model embodiment;

[0014] Fig. 2 It is a transverse cross section structure schematic view of the straight jet suspension type burner of the utility model embodiment;

[0015] Fig. 3 It is a wind hole cross section structure schematic view of the straight jet suspension type burner of the utility model embodiment;

[0016] The main element symbol explanations are as follows:

[0017] The burner shell 1, the air inlet pipe 2, the opening 3, the mixing seat 4, the mixing chamber 5, the through hole 6, the first ventilation plate 7, the air inlet 8, the second ventilation plate 9, the air outlet 10, the gas jet head 11, the gas pipe 12, the air hole 13, the damper cover 14, the straight jet hole 15, the threaded connecting column 16 and the placing rack 17. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] like Figs. 1-3 As shown, the direct injection suspension burner of the present invention has an air inlet pipe 2 at the bottom of the burner housing 1, an opening 3 at the top of the burner housing 1, a mixing seat 4 is installed in the opening 3 of the burner housing 1, a mixing chamber 5 is provided in the mixing seat 4, a through hole 6 is provided at the bottom of the mixing chamber 5 of the mixing seat 4, a first ventilation plate 7 is installed at the bottom of the through hole 6, a plurality of evenly arranged air inlet holes 8 are provided on the first ventilation plate 7, a second ventilation plate 9 is installed on the top of the through hole 6, a plurality of evenly arranged air outlet holes 10 are provided on the second ventilation plate 9, and a gas is also installed between the first ventilation plate 7 and the second ventilation plate 9. Nozzle 11, the output end of the gas nozzle 11 is arranged in the mixing chamber 5, the input end of the gas nozzle 11 passes through the first ventilation plate 7 and is connected to the gas pipe 12, the other side of the gas pipe 12 passes through the burner shell 1 and extends to its outside, the mixing seat 4 is provided with a plurality of air holes 13 around the mixing chamber 5, and the plurality of air holes 13 are arranged obliquely along the circumference of the mixing chamber 5, a fire distribution cover 14 is installed on the top of the burner shell 1, the output end of the mixing chamber 5 is arranged in the fire distribution cover 14, the top surface of the fire distribution cover 14 is arranged in an inward concave structure, and the fire distribution cover 14 is provided with a plurality of evenly arranged straight fire holes 15.

[0020] Preferably, the plurality of air inlet holes 8 and the plurality of air outlet holes 10 are arranged in a circular pattern, centered on the gas nozzle 11 and evenly spaced outside the gas nozzle 11. This structural design allows air to be evenly input into the mixing chamber 5 and mixed with the gas ejected from the gas nozzle 11. In practice, other structural shapes of the air inlet holes 8 and air outlet holes 10 may also be considered depending on the specific situation.

[0021] Preferably, a threaded connection post 16 is mounted on the bottom of the gas nozzle 11, and the gas pipe 12 is provided with internal threads corresponding to the threaded connection post 16. The gas nozzle 11 and the gas pipe 12 are locked together by the threaded connection post 16 and the internal threads. This structural design allows for a fixed connection between the gas nozzle 11 and the gas pipe 12. In practice, other connection structures between the gas nozzle 11 and the gas pipe 12 may also be considered depending on the specific situation.

[0022] Preferably, the gas jet head 11 is arranged in a T-shaped structure, the gas jet head 11 is pressed on the second ventilation plate 9, and the top of the gas pipe 12 is arranged on the bottom of the first ventilation plate 7. Such a structural design has the effect of limiting and fixing the first ventilation plate 7 and the second ventilation plate 9. In fact, other installation structures of the gas jet head 11 and the gas pipe 12 can also be considered according to specific conditions.

[0023] Preferably, the burner shell 1 is provided with a plurality of uniformly arranged placing racks 17 outside the damper cap 14. Such a structural design facilitates subsequent support of the pot for use. In fact, other structural shapes of the placing rack 17 can also be considered according to specific conditions.

[0024] In use, in the embodiment, the gas enters the gas jet head 11 through the gas pipe 12 and is sprayed into the mixing cavity 5 of the mixing seat 4 through the gas jet head 11. At the same time, the air is input into the burner shell 1 from the air inlet pipe 2. When the air enters the burner shell 1, it enters the mixing seat 4 in two ways. One way is to enter the through hole 6 through the air inlet hole 8 on the first ventilation plate 7 and then be output from the air outlet hole 10 on the second ventilation plate 9 to the mixing cavity 5 through the through hole 6, preliminarily mix with the gas suspended in the mixing cavity 5, and the air amount from the air outlet hole 10 is small, so the air-fuel ratio is small at this time. The other way is for the air to enter the mixing cavity 5 through the air hole 13. Since the air hole 13 is arranged in an inclined manner along the circumference of the mixing cavity 5, the air entering the mixing cavity 5 will generate a rotating power and then be mixed with the gas for the second time, so that the gas can be fully mixed. Finally, the mixed gas is output from the plurality of straight jet holes 15 on the damper cap 14 and ignited, so that the gas can be fully burned and the use effect is improved.

[0025] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. Direct injection suspension burner, characterized by: The invention comprises a burner shell (1), wherein the bottom of the burner shell (1) is provided with an air inlet pipe (2), the top of the burner shell (1) is provided with an opening (3), the burner shell (1) is provided with a mixing seat (4) in the opening (3), the mixing seat (4) is provided with a mixing chamber (5), the mixing seat (4) is provided with a through hole (6) at the bottom of the mixing chamber (5), a first ventilation plate (7) is installed at the bottom of the through hole (6), the first ventilation plate (7) is provided with a plurality of evenly arranged air inlet holes (8), the top of the through hole (6) is provided with a second ventilation plate (9), the second ventilation plate (9) is provided with a plurality of evenly arranged air outlet holes (10), and a gas nozzle is also installed between the first ventilation plate (7) and the second ventilation plate (9). The invention relates to a gas nozzle (11), wherein the output end of the gas nozzle (11) is arranged in the mixing chamber (5), the input end of the gas nozzle (11) passes through the first ventilation plate (7) and is connected to a gas pipe (12), the other side of the gas pipe (12) passes through the burner shell (1) and extends to the outside thereof, the mixing seat (4) is provided with a plurality of air holes (13) around the mixing chamber (5), and the plurality of air holes (13) are arranged in an inclined manner along the circumference of the mixing chamber (5), a fire separation cover (14) is installed on the top of the burner shell (1), the output end of the mixing chamber (5) is arranged in the fire separation cover (14), the top surface of the fire separation cover (14) is provided with an inward concave structure, and the fire separation cover (14) is provided with a plurality of evenly arranged straight-spraying fire holes (15).

2. The direct injection suspension burner according to claim 1, characterized in that: The plurality of air inlet holes (8) and the plurality of air outlet holes (10) are arranged in a circular shape and are evenly arranged on the outside of the gas nozzle (11) with the gas nozzle (11) as the center.

3. The direct injection suspension burner according to claim 2, characterized in that: A threaded connection column (16) is installed at the bottom of the gas nozzle (11), and the gas pipe (12) is provided with an internal thread at a position corresponding to the threaded connection column (16). The gas nozzle (11) and the gas pipe (12) are locked in thread connection via the threaded connection column (16) and the internal thread.

4. The direct injection suspension burner according to claim 3, characterized in that: The gas nozzle (11) is arranged in a T-shaped structure, the gas nozzle (11) is pressed on the second ventilation plate (9), and the top of the gas pipe (12) is arranged on the bottom of the first ventilation plate (7).

5. The direct injection suspension burner according to claim 4, characterized in that: The burner housing (1) is provided with a plurality of evenly arranged placement racks (17) on the outside of the fire distribution cover (14).

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