CN215951407U

CN215951407U - Low NOx asymmetric combustor with venturi

Info

Publication number: CN215951407U
Application number: CN202122541240.0U
Authority: CN
Inventors: 周国军
Original assignee: JIANGSU OUBIAO CO Ltd
Current assignee: JIANGSU OUBIAO CO Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-03-04
Anticipated expiration: 2031-10-21

Abstract

The utility model relates to the technical field of combustors and discloses a low-NOx asymmetric combustor with a Venturi tube. This low NOx asymmetric combustor with venturi, through the water conservancy diversion seat, the cooperation of guide holder and dog is used, can be with the gas of production along the water conservancy diversion seat, the connecting hole is imported into to guide holder and dog, let gas can not flow into other positions, thereby let gas can be by even abundant transfer burning, environmental protection and energy saving more, when gas flows into the venturi body, the connecting hole, the card hole, the aperture in gradual change hole and neck hole diminishes gradually in proper order, let gas velocity of flow grow in the venturi body, thereby the work effect of venturi body has been promoted the effect that the reduction NOx of eccentric combustor generated.

Description

Low NOx asymmetric combustor with venturi

Technical Field

The utility model relates to the technical field of combustors, in particular to a low-NOx asymmetric combustor with a Venturi tube.

Background

The burner is a device for spraying and mixing fuel and air in a certain mode for combustion, and is divided into industrial burners, combustion machines, civil burners and special burners according to types and application fields, and is made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or metal titanium, and the burner is used for atomizing a sample through flame combustion.

The existing low-NOx asymmetric burner has the defects that the combustion of generated NOx gas is not uniform, the combustion is insufficient, so that the discharged gas still contains more NOx gas, the requirement of environmental protection cannot be met, and the use is inconvenient, so that the problem is solved by providing the low-NOx asymmetric burner with the Venturi tube.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the low-NOx asymmetric combustor with the Venturi tube, which has the advantages of environmental protection and energy saving and solves the problem of uneven and sufficient combustion.

In order to achieve the purposes of environmental protection and energy saving, the utility model provides the following technical scheme: a low NOx asymmetric combustor with a Venturi tube comprises an air pipeline, lugs fixedly installed on the outer surface of the air pipeline, a combustor wall fixedly installed on the outer side of the lugs, a baffle fixedly installed on the inner wall of the air pipeline, a pilot burner fixedly installed inside the baffle and a fuel discharging assembly fixedly installed inside the baffle and positioned at the bottom of the pilot burner, wherein flow guide mechanisms used for guiding gas are fixedly installed on the outer surfaces of the pilot burner and the fuel discharging assembly respectively, each flow guide mechanism comprises a flow guide seat, a stop block and a Venturi tube body, the flow guide seats are fixedly installed on the outer surfaces of the pilot burner and the fuel discharging assembly and fixedly connected with the inner wall of the air pipeline, the guide seats are fixedly installed on the inner top wall of the air pipeline and fixedly connected with the Venturi tube body, the stop blocks are fixedly installed on the front surface and the back surface of the inner wall of the air pipeline and fixedly connected with the Venturi tube body, the venturi tube body is fixedly mounted on the inner top wall of the air pipeline and the combustor wall.

Furthermore, the lower surface of the guide seat is an inclined plane, one side of the flow guide seat close to the baffle is an inclined plane, and arc-shaped grooves are formed in the opposite sides of the two check blocks.

Through adopting above-mentioned technical scheme, the inclined plane has the guide effect to the air, does benefit to the air and can enter into the venturi body.

Furthermore, two dog all with water conservancy diversion seat and guide holder fixed connection, the shape of water conservancy diversion seat is incomplete cylindrical.

Further, a neck hole is formed in the venturi tube body, and two gradual-changing holes communicated with the neck hole are formed in the venturi tube body.

Further, two clamping holes communicated with the gradual change holes are formed in the dune tube body, connecting holes communicated with the clamping holes are formed in the dune tube body, and the gradual change holes and the clamping holes are in a round table shape.

Through adopting above-mentioned technical scheme, the gradual change hole of round platform shape and card hole make the aperture can change gradually to this changes air flow rate.

Further, the bottom fixed mounting of pipe body in dune has the backward flow tubule that is linked together with neck hole and card hole, the shape of backward flow tubule is the U-shaped, the bottom of pipe body in dune just is located the outside fixed mounting of backward flow tubule and has the vacuum breathing pipe that communicates with neck hole.

Further, the combustor wall is a refractory brick wall.

Compared with the prior art, the utility model provides a low-NOx asymmetric combustor with a Venturi tube, which has the following beneficial effects:

the low NOx asymmetric burner with the Venturi tube can input generated gas into the connecting hole along the flow guide seat, the guide seat and the baffle block through the matching use of the flow guide seat, the guide seat and the baffle block, the gas can not flow into other positions, so that the gas can be uniformly and fully transferred and combusted, the environment is protected, the energy is saved, when the gas flows into the Venturi tube body, the diameters of the connecting hole, the clamping hole, the gradual changing hole and the neck hole are gradually reduced in sequence, so that the flow velocity of the gas in the Venturi tube body is increased, the working effect of the Venturi tube body is promoted, and the effect of reducing the generation of NOx of the eccentric burner is promoted, through setting up the backward flow tubule, can communicate neck hole and connecting hole, minimize leads to the condition that venturi body damaged because of the neck hole aperture diminishes pressure grow, has solved the inhomogeneous abundant problem of burning.

Drawings

FIG. 1 is a front cross-sectional view of the structure of the present invention;

FIG. 2 is a side view of a structural stop of the present invention;

figure 3 is a side schematic view of the venturi body of the present construction.

In the figure: 1 air pipeline, 2 lugs, 3 combustor walls, 4 baffles, 5 igniters, 6 fuel discharge assemblies, 7 Venturi tube bodies, 8 neck holes, 9 gradual change holes, 10 clamping holes, 11 connecting holes, 12 backflow tubules, 13 vacuum suction pipes, 14 diversion seats, 15 guide seats and 16 stop blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a low NOx asymmetric burner with a venturi tube includes an air duct 1, a lug 2 fixedly installed on an outer surface of the air duct 1, a burner wall 3 fixedly installed on an outer side of the lug 2, the burner wall 3 being a refractory brick wall, a baffle 4 fixedly installed on an inner wall of the air duct 1, a pilot burner 5 fixedly installed inside the baffle 4, and a fuel discharge assembly 6 fixedly installed inside the baffle 4 and located at a bottom of the pilot burner 5;

wherein, the outer surfaces of the pilot burner 5 and the fuel discharge assembly 6 are both fixedly provided with a flow guide mechanism for guiding gas, the flow guide mechanism comprises a flow guide seat 14, a guide seat 15, a stop block 16 and a Venturi tube body 7, under the guidance of the guide seat 14, the guide seat 15 and the stop 16, air can flow into the connecting hole 11 to the maximum extent, thereby can evenly fully be burnt, the gaseous content of minimize NOx, environmental protection and energy saving, water conservancy diversion seat 14 fixed mounting just with air conduit 1's inner wall fixed connection at the surface of pilot burner 5 and fuel exhaust subassembly 6, guide holder 15 fixed mounting just with venturi body 7 fixed connection at air conduit 1's interior roof, dog 16 fixed mounting just with venturi body 7 fixed connection at air conduit 1's inner wall openly and the back, venturi body 7 fixed mounting is on the interior roof of air conduit 1 and combustor wall 3.

Referring to fig. 1, a neck hole 8 is formed inside a venturi tube body 7, two gradual change holes 9 communicated with the neck hole 8 are formed inside the venturi tube body 7, two card holes 10 communicated with the gradual change holes 9 are formed inside the venturi tube body 7, the gradual change holes 9 and the card holes 10 are in a circular truncated cone shape, a connection hole 11 communicated with the card holes 10 is formed inside the venturi tube body 7, a backflow tubule 12 communicated with the neck hole 8 and the card holes 10 is fixedly installed at the bottom of the venturi tube body 7, the backflow tubule 12 is in a U shape, a vacuum suction tube 13 communicated with the neck hole 8 is fixedly installed at the bottom of the venturi tube body 7 and located outside the backflow tubule 12, and the backflow tubule 12 can backflow part of air to the connection hole 11 to reduce the pressure in the neck hole 8 to a certain extent.

It will be appreciated that as air enters the bayonet holes 10, the air flow rate will be faster due to the decreasing of the aperture, and as air enters the tapered holes 9, the aperture is again decreased and the air flow rate is again faster, and as air enters the neck holes 8, the aperture is again decreased and the air flow rate is again increased.

Referring to fig. 1-2, the lower surface of the guide seat 15 is an inclined surface, one side of the guide seat 14 close to the baffle 4 is an inclined surface, the guide seat 14 is in an incomplete cylindrical shape, the opposite sides of the two stoppers 16 are both provided with arc-shaped grooves, and the two stoppers 16 are both fixedly connected with the guide seat 14 and the guide seat 15.

It should be noted that the inclined surface of the guide seat 15 and the inclined surface of the deflector seat 14 both have a guiding function, so that air can be poured into the connecting hole 11.

In the embodiment, when in use, air enters the air pipeline 1 through the baffle plate 4 in a proper amount during combustion, the flow seat 14, the guide seat 15 and the stop block 16 guide and guide the air, the air is forced to enter the Venturi tube body 7 only, when the air enters the Venturi tube body 7, a vacuum is formed in the vacuum suction pipe 13 at the bottom of the Venturi tube 5, the vacuum suction pipe 13 is in a low-pressure state, and the fuel and combustion inert product mixed gas is sucked into the Venturi tube body 7 through the vacuum suction pipe 13 and mixed with the entering air to form new mixed gas which is combusted outside the connecting hole 11 of the Venturi tube body 7.

The working principle of the above embodiment is as follows:

the low NOx asymmetric burner with the Venturi tube can input generated gas into the connecting hole 11 along the flow guide seat 14, the guide seat 15 and the stop block 16 through the matching use of the flow guide seat 14, the guide seat 15 and the stop block 16, so that the gas cannot flow into other positions, the gas can be uniformly and fully transferred and burnt, the burner is more environment-friendly and energy-saving, when the gas flows into the Venturi tube body 7, the hole diameters of the connecting hole 11, the clamping hole 10, the gradual change hole 9 and the neck hole 8 are sequentially and gradually reduced, the flow velocity of the gas in the Venturi tube body 7 is increased, the working effect of the Venturi tube body 7 is promoted, the effect of reducing the NOx generation of the eccentric burner is promoted, the neck hole 8 and the connecting hole 11 can be communicated through the arrangement of the backflow tubule 12, the condition that the Venturi tube body 7 is damaged due to the reduction of the hole diameter of the neck hole 8 and the increase of the pressure is reduced as much as possible, the problem of burning inhomogeneous abundant is solved.

The electrical components shown herein are electrically connected to a main controller and a power supply, the main controller can be a conventional known device controlled by a computer, and the conventional power connection technology disclosed in the prior art is not described in detail herein.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low NOx asymmetric combustor with venturi, includes air duct (1), lug (2) of fixed mounting at air duct (1) surface, combustor wall (3) of fixed mounting in the lug (2) outside, baffle (4) of fixed mounting in air duct (1) inner wall, fixed mounting are in inside pilot burner (5) of baffle (4) and fixed mounting are in inside and the fuel discharge assembly (6) that are located pilot burner (5) bottom of baffle (4), its characterized in that: the outer surfaces of the pilot burner (5) and the fuel discharge assembly (6) are fixedly provided with a flow guide mechanism for guiding gas;

the water conservancy diversion mechanism includes water conservancy diversion seat (14), guide holder (15), dog (16) and venturi body (7), water conservancy diversion seat (14) fixed mounting just with the inner wall fixed connection of air conduit (1) at the surface of pilot burner (5) and fuel discharge subassembly (6), guide holder (15) fixed mounting just with venturi body (7) fixed connection at the interior roof of air conduit (1), dog (16) fixed mounting just with venturi body (7) fixed connection at the front and the back of the inner wall of air conduit (1), venturi body (7) fixed mounting is on the interior roof of air conduit (1) and combustor wall (3).

2. The low NOx asymmetric burner with venturi according to claim 1, wherein: the lower surface of the guide seat (15) is an inclined plane, one side of the flow guide seat (14) close to the baffle (4) is an inclined plane, and arc-shaped grooves are formed in opposite sides of the two stop blocks (16).

3. The low NOx asymmetric burner with venturi according to claim 1, wherein: two dog (16) all with water conservancy diversion seat (14) and guide holder (15) fixed connection, the shape of water conservancy diversion seat (14) is incomplete cylindrical.

4. The low NOx asymmetric burner with venturi according to claim 1, wherein: neck hole (8) have been seted up to the inside of venturi body (7), two gradual change holes (9) that are linked together with neck hole (8) have been seted up to the inside of venturi body (7).

5. The low NOx asymmetric burner with venturi of claim 4, wherein: two card holes (10) that are linked together with gradual change hole (9) are seted up to the inside of dune li guan body (7), connecting hole (11) that are linked together with card hole (10) are seted up to the inside of dune li guan body (7), the shape in gradual change hole (9) and card hole (10) is the round platform shape.

6. The low NOx asymmetric burner with venturi of claim 5, wherein: the utility model discloses a plastic pipe, including dune li guan body (7), the bottom fixed mounting of dune li body (7) has backward flow tubule (12) that are linked together with neck hole (8) and card hole (10), the shape of backward flow tubule (12) is the U-shaped, the outside fixed mounting that the bottom of dune li guan body (7) just is located backward flow tubule (12) has vacuum breathing pipe (13) that are linked together with neck hole (8).

7. The low NOx asymmetric burner with venturi according to claim 1, wherein: the combustor wall (3) is a refractory brick wall.