CN212537819U

CN212537819U - Novel diesel burner nozzle

Info

Publication number: CN212537819U
Application number: CN202021105968.8U
Authority: CN
Inventors: 王乐; 杨春; 李伟; 孙良程; 丁俊平; 张德武; 马立江; 马晓勇; 王婷
Original assignee: INNER MONGOLIA JUNZHENG CHEMICAL CO Ltd
Current assignee: INNER MONGOLIA JUNZHENG CHEMICAL CO Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-02-12
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses a novel diesel burner nozzle, which comprises an air pipe, an oil pipe and an expanding pipe, wherein the oil pipe is fixed inside the air pipe through a plurality of support columns and is coaxially arranged with the air pipe; an oil distribution plate is fixed at the outlet end of the oil pipe in a sealing way, and an oil distribution hole is formed in the oil distribution plate; the outlet end of the air pipe is connected with an expanding pipe, the large-caliber end of the expanding pipe is fixed with an end plate in a sealing way, a plurality of spray holes are arranged on the end plate along the circumferential direction, and a turbulent flow hole is arranged in the center of the end plate. The advantages are that: the turbulent flow holes are designed to effectively avoid the phenomenon that the flame stability is influenced by the circulating work of high-pressure wind in the expanding pipe, and the flame is stable and has a good shape in actual operation; meanwhile, the structure comprising the splitter box, the guide plate, the Venturi section and the like can improve the mixing uniformity of the compressed air and the diesel oil, further optimize the combustion effect, reduce the consumption of the diesel oil and save energy.

Description

Novel diesel burner nozzle

The technical field is as follows:

the utility model relates to a diesel oil burner technical field that burns, specifically speaking relate to novel diesel oil burner shower nozzle.

Background art:

after the cement production system is overhauled, because the refractory bricks, concrete, cement and the like in the kiln system contain more water, if the kiln is not dried in advance to evaporate the water, the temperature of the lining material is rapidly increased, a large amount of attached water is rapidly evaporated, and large expansion force is generated inside the lining material and the concrete, so that the refractory bricks explode and crack, and the phenomena of concrete block falling, refractory brick drawing, brick falling and the like are generated in serious cases, and the skinning and blocking can also occur after the materials are thrown. Generally, the kiln is dried by burning diesel oil, and the kiln drying process requires stable flame, long duration and large diesel oil consumption.

The diesel oil burner adopted at present comprises an air pipe, an oil pipe, a mixing chamber and an end plate, wherein compressed air and diesel oil are mixed in the mixing chamber, and the diesel oil is atomized and sprayed into a kiln by utilizing the compressed air for combustion; however, only one circle of spray holes are formed in an end plate of the existing burner, atomized diesel oil is sprayed out through the spray holes, however, part of high-pressure air can circularly work in a mixing chamber in the center of the end plate, if the high-pressure air cannot be sprayed into the kiln in time, the air pressure at the position is changed, the flame stability is influenced, the kiln is not uniform, and part of concrete cracks influence the service life of the cement kiln.

The utility model has the following contents:

an object of the utility model is to provide an improve flame stability's novel diesel burner shower nozzle.

The utility model discloses by following technical scheme implement: the novel diesel burner nozzle is characterized by comprising an air pipe, an oil pipe and an expanding pipe, wherein the oil pipe is fixed inside the air pipe through a plurality of support columns and is coaxially arranged with the air pipe; an oil distribution plate is fixed at the outlet end of the oil pipe in a sealing way, and an oil distribution hole is formed in the oil distribution plate; the outlet end of the air pipe is connected with an expanding pipe, the large-caliber end of the expanding pipe is fixed with an end plate in a sealing mode, a plurality of spray holes are formed in the end plate in the circumferential direction, and a turbulence hole is formed in the center of the end plate.

Furthermore, a venturi section is fixed on the inner wall of the oil pipe.

Furthermore, a plurality of guide plates which are obliquely arranged relative to the axial direction are fixed on the inner wall of the outlet end of the air pipe.

Further, a wire mesh arranged in parallel to the end plate is fixed to an inner wall of the diameter-expanding tube.

Furthermore, the pillar and the end face far away from the end plate are conical surfaces, and a plurality of splitter boxes arranged along the axial direction of the air pipe are arranged on the side edge of the pillar.

The utility model has the advantages that: the turbulent flow holes are designed to effectively avoid the phenomenon that the flame stability is influenced by the circulating work of high-pressure wind in the expanding pipe, and the flame is stable and has a good shape in actual operation; meanwhile, the structure comprising the splitter box, the guide plate, the Venturi section and the like can improve the mixing uniformity of the compressed air and the diesel oil, further optimize the combustion effect, reduce the consumption of the diesel oil and save energy.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a right side view of fig. 1.

The device comprises an air pipe 1, an oil pipe 2, an expanding pipe 3, a support 4, an oil distribution plate 5, oil distribution holes 6, an end plate 7, spray holes 8, turbulent flow holes 9, a Venturi section 10, a guide plate 11, a silk screen 12 and a splitter box 13.

The specific implementation mode is as follows:

in the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, the novel diesel burner nozzle comprises an air pipe 1, an oil pipe 2 and an expanding pipe 3, wherein the oil pipe 2 is fixed inside the air pipe 1 through a plurality of support columns 4, the support columns 4 and the end surface far away from an end plate 7 are conical surfaces, a plurality of splitter boxes 13 arranged along the axial direction of the air pipe 1 are arranged on the side edges of the support columns 4, and the conical surfaces are matched with the splitter boxes 13 and can disperse compressed air into uniform airflow; the oil pipe 2 and the air pipe 1 are coaxially arranged, a Venturi section 10 is fixed on the inner wall of the oil pipe 2, an oil distribution plate 5 is fixed at the outlet end of the oil pipe 2 in a sealing manner, an oil distribution hole 6 is formed in the oil distribution plate 5, and diesel oil can be accelerated and diffused in the process of passing through the Venturi section 10 and then is sprayed out through the oil distribution hole 6;

a plurality of guide plates 11 which are obliquely arranged relative to the axial direction are fixed on the inner wall of the outlet end of the air pipe 1, and compressed air can form rotary airflow after passing through the guide plates 11; the outlet end of the air pipe 1 is connected with an expanding pipe 3, the large-caliber end of the expanding pipe 3 is fixed with an end plate 7 in a sealing way, a plurality of spray holes 8 are arranged on the end plate 7 along the circumferential direction, and a turbulent flow hole 9 is arranged at the center of the end plate 7. The rotating high-pressure airflow and the diesel oil are fully mixed in the enlarged expanding tube 3, the diesel oil is changed into extremely fine oil drops under the action of the high-pressure air, and the atomization effect in the kiln is greatly improved; a wire mesh 12 arranged in parallel with the end plate 7 is fixed on the inner wall of the expanding tube 3, and the oil mist is further uniformly distributed by the wire mesh 12 and then is ejected out through the spray holes 8 and the turbulent flow holes 9.

The working principle and the process are as follows: after entering the oil pipe 2, diesel oil is accelerated and diffused through the venturi section 10 and then is dispersed into the expanding pipe 3 through the oil distribution hole 6; meanwhile, the compressed air firstly passes through the support 4 after entering the air pipe 1, is divided into a plurality of air flows through the dividing groove 13 after being divided by the conical surface, and then the plurality of air flows form spiral air flows after passing through the inclined guide plate 11 and enter the expanding pipe 3 to be fully mixed with the diesel oil sprayed from the oil distribution holes 6;

eight spray holes 8 are designed in the embodiment, so that the oil-air mixture has a good atomization effect after being sprayed out from the spray holes 8, and the oil-air mixture is sprayed into a kiln through a swirler, so that flame combustion is good; in the process of mixing diesel oil and compressed air in the expanding pipe 3, part of high-pressure air circularly works at the expanding pipe, if the high-pressure air cannot be sprayed into the kiln in time, the air pressure at the expanding pipe changes to influence the flame stability, the turbulent flow hole 9 is designed to effectively avoid the condition, and the flame is stable and has a good shape in actual operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The novel diesel burner nozzle is characterized by comprising an air pipe, an oil pipe and an expanding pipe, wherein the oil pipe is fixed inside the air pipe through a plurality of support columns and is coaxially arranged with the air pipe; an oil distribution plate is fixed at the outlet end of the oil pipe in a sealing way, and an oil distribution hole is formed in the oil distribution plate; the outlet end of the air pipe is connected with the expanding pipe, the large-caliber end of the expanding pipe is fixed with an end plate in a sealing mode, a plurality of spray holes are formed in the end plate in the circumferential direction, and a turbulence hole is formed in the center of the end plate.

2. The new diesel burner nozzle of claim 1, characterized in that a venturi section is fixed to the inner wall of the oil pipe.

3. The new diesel burner nozzle as set forth in claim 1 or 2, wherein a plurality of baffles are fixed to the inner wall of the outlet end of the gas pipe in an inclined manner with respect to the axial direction.

4. The new diesel burner nozzle as set forth in claim 1 or 2, characterized in that a wire mesh arranged in parallel with respect to the end plate is fixed on the inner wall of the expanding tube.

5. The new diesel burner nozzle of claim 3, characterized in that on the inner wall of said expanding tube a wire mesh is fixed, arranged parallel with respect to said end plate.

6. The new diesel burner nozzle of claim 1, 2 or 5, wherein the end surfaces of the support and the end plates are conical surfaces, and a plurality of splitter boxes are disposed on the side of the support along the axial direction of the gas pipe.

7. The new diesel burner nozzle of claim 3, characterized in that the pillar and the end surface far away from the end plate are conical surfaces, and a plurality of splitter boxes are provided on the side of the pillar along the axial direction of the gas pipe.

8. The new diesel burner nozzle of claim 4, characterized in that the pillar and the end surface far away from the end plate are conical surfaces, and a plurality of splitter boxes are provided on the side of the pillar along the axial direction of the gas pipe.