Blower-free natural air inlet burner

Abstract

The utility model provides a blower-free natural air inlet burner which comprises a mixing pipe, a burner head, a mixing cavity and a conical cylinder are arranged at the front end of the mixing pipe, a fuel gas guide pipe is arranged at the rear end of the mixing pipe, and an air inlet cavity is arranged in the side wall of the rear end of the mixing pipe. An air guide pipe communicated with the air inlet cavity is arranged on the outer side wall of the rear end of the mixing pipe, and a plurality of air blowing holes communicated with the air inlet cavity are formed in the inner side wall of the rear end of the mixing pipe. According to the air-blower-free natural air inlet burner, not only can mixing treatment and combustion treatment of air and coal gas be achieved, but also sufficient mixing treatment of the air and the coal gas can be rapidly and efficiently achieved in the mode that the air enters the mixing chamber from the whole side end area, and the air-blower-free natural air inlet burner has the advantages of being simple in structure and convenient to use. The overall mixing efficiency and mixing effect are improved, and then the final combustion effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the steel ladle baking stove burner technical field, in particular to a kind of natural air inlet burner without air blower. BACKGROUND

[0002] Steel ladle is generally needed to be baked by steel ladle baking device before being newly laid and filled with molten steel.The existing natural air inlet burner without air blower can meet the basic requirement of mixing combustion air and gas and burning, so as to realize the basic requirement of steel ladle baking treatment, but air pipeline can only introduce air into the mixing chamber of burner from local area, so that air can only contact and mix with gas from the local side end position of mixing chamber, that is, gas cannot be mixed from the entire side end position of mixing chamber, so there is the technical problem of low mixing efficiency and insufficient mixing effect, which also affects the burning effect of burner and cannot fully meet the use requirement of people.

[0003] For example, the utility model discloses a kind of ladle baking burners, and the burner includes gas pipeline, air inlet pipeline, mixing chamber and burner head, the gas pipeline and air inlet pipeline are connected to mixing chamber respectively, the front part of mixing chamber is provided with spiral blade, and the rear part of mixing chamber is provided with burner head;But since air can only enter into mixing chamber from the local side end area of mixing chamber after leaving air inlet pipeline, that is, air can only contact and mix with gas from the local side end area, the requirement of subsequent mixing path is long, and the overall mixing efficiency and mixing effect are easily affected, and then the final burning effect is affected. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a kind of natural air inlet burner without air blower, which can not only realize the mixing and burning of air and gas, but also can realize the sufficient mixing of air and gas quickly and efficiently by the way that air enters into mixing chamber from the entire side end area, improve the overall mixing efficiency and mixing effect, and then improve the final burning effect.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a kind of natural air inlet burner without air blower, which includes mixing pipe, the front end of mixing pipe is provided with burner head, the inside of mixing pipe is provided with mixing cavity, the front side of mixing cavity is tapered cylinder shape with gradually narrowing opening, the rear end of mixing pipe is provided with gas guide pipe, the inside of rear end side wall of mixing pipe is provided with air inlet cavity, the outside wall of rear end of mixing pipe is provided with air guide pipe, which is connected with air inlet cavity, and the inside wall of rear end of mixing pipe is provided with a plurality of air blowing holes, which are connected with air inlet cavity.

[0006] As a further improvement of this utility model, a mixing aid module is provided inside the rear end of the mixing tube.

[0007] As a further improvement of this utility model, the mixing module includes a mounting plate disposed on the inner side wall of the rear end of the mixing pipe and located on the rear side of the air intake chamber. A guide head is disposed on the front side wall of the mounting plate, and multiple guide channels are disposed on the side wall of the guide head along the front-back direction. Multiple air inlets adapted to the guide channels are disposed through the mounting plate.

[0008] As a further improvement of this utility model, a first threaded connecting sleeve for screwing and fixing to a gas delivery pipe is also screwed onto the gas conduit, and a second threaded connecting sleeve for screwing and fixing to an air delivery pipe is also screwed onto the air conduit. The lower outer wall of the first threaded connecting sleeve is a regular hexagon, and the lower outer wall of the second threaded connecting sleeve is a regular hexagon.

[0009] As a further improvement of this utility model, a first anti-slip sleeve is also provided on the first threaded connecting sleeve, and a second anti-slip sleeve is also provided on the second threaded connecting sleeve.

[0010] As a further improvement of this invention, the front side of the guide head is a conical shape adapted to the mixing chamber. This design allows for better guidance of airflow into the mixing chamber, reducing airflow resistance and improving combustion efficiency.

[0011] As a further improvement of this utility model, the first threaded connecting sleeve is also provided with a first isolation retaining ring for isolating the first anti-slip sleeve, and the second threaded connecting sleeve is also provided with a second isolation retaining ring for isolating the second anti-slip sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Firstly, multiple air-blowing holes connected to the air intake chamber are provided on the inner wall of the rear end of the mixing tube. These air-blowing holes can introduce the entire side area of ​​the rear end of the mixing chamber into the mixing chamber, expanding the entry area of ​​the combustion air from an arc shape to a circle, so that the combustion air can come into more complete contact with the gas and mix. The front side of the mixing chamber is designed as a cone shape with a gradually narrowing opening, which can generate a vortex effect and further promote the uniform mixing of the gas.

[0014] Secondly, the sidewall of the flow guide head has multiple flow channels arranged in the front-to-back direction, which helps to form multiple airflow paths, making the gas and air mix more evenly; further enhancing the mixing effect of gas and air.

[0015] Thirdly, the first threaded connecting sleeve and the second threaded connecting sleeve with the outer side wall of regular hexagon are arranged on the gas guide pipe and the air guide pipe respectively, which facilitates the fastening by using spanner and conveniently realizes the flexible fixing of the gas guide pipe and the gas delivery pipe and the flexible fixing of the air guide pipe and the air delivery pipe.

[0016] Fourthly, the first isolation baffle ring can avoid the abrasion of the first anti-skid sleeve caused by the turning tool when adjusting the first threaded connecting sleeve, and the second isolation baffle ring can avoid the abrasion of the second anti-skid sleeve caused by the turning tool when adjusting the second threaded connecting sleeve.

[0017] Fifthly, the natural air inlet design without the air blower reduces the demand for additional power equipment, reduces energy consumption, reduces noise pollution and is more environmentally friendly, the optimized mixing chamber and mixing assisting module design improve the combustion efficiency, reduce the emission of incompletely combusted gas and reduce environmental pollution. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the structural schematic diagram of the mixing chamber, the air inlet chamber and the air blowing hole of the utility model;

[0021] Figure 3 It is the structural schematic diagram of the air inlet chamber and the air blowing hole of the utility model;

[0022] Figure 4 It is the structural schematic diagram of the mixing assisting module of the utility model;

[0023] Figure 5 It is the sectional structure schematic diagram of the mixing assisting module of the utility model;

[0024] Figure 6 It is the structural schematic diagram of the first threaded connecting sleeve, the second threaded connecting sleeve, the first anti-skid sleeve, the second anti-skid sleeve, the first isolation baffle ring and the second isolation baffle ring of the utility model.

[0025] In the drawing: 101, mixing pipe; 102, burner head; 103, mixing chamber; 104, gas guide pipe; 105, air inlet chamber; 106, air guide pipe; 107, air blowing hole; 201, mounting plate; 202, flow guide head; 203, flow guide channel; 204, air inlet; 205, first threaded connecting sleeve; 206, second threaded connecting sleeve; 207, first anti-skid sleeve; 208, second anti-skid sleeve; 209, first isolation baffle ring; 210, second isolation baffle ring. DETAILED DESCRIPTION

[0026] For better understanding of the present application, the content of the present application will be further clarified in the following embodiments. However, the protection scope of the present application is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more complete understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details.

[0027] As Figure 1 , 2 , 3 shows a natural air inlet burner without a blower, comprising a mixing pipe 101, the front end of the mixing pipe 101 is provided with a burner head 102, the inside of the mixing pipe 101 is provided with a mixing chamber 103, the front side of the mixing chamber 103 is a tapered cylinder shape with a gradually narrowing opening, the rear end of the mixing pipe 101 is provided with a gas guide pipe 104, the inside of the rear end side wall of the mixing pipe 101 is provided with an air inlet chamber 105, the outside wall of the rear end of the mixing pipe 101 is provided with an air guide pipe 106 which is in communication with the air inlet chamber 105, and the inside wall of the rear end of the mixing pipe 101 is provided with a plurality of air blowing holes 107 which are in communication with the air inlet chamber 105.

[0028] The gas enters the mixing chamber 103 through the gas guide pipe 104, the combustion air enters the air inlet chamber 105 through the air guide pipe 106, and then enters the mixing chamber 103 from the entire circular area at the rear end of the mixing chamber 103 through the plurality of air blowing holes 107, so that the air can enter the mixing chamber 103 from multiple points, thereby achieving uniform distribution, so that the combustion air contacts and mixes with the gas from the entire side end area, thereby quickly and efficiently achieving sufficient mixing of the gas and the combustion air, and then blowing out through the burner head 102, after which only the ignition device needs to be started to make the mixed gas of the gas and the combustion air burn.

[0029] According to another embodiment of the present application, as Figure 4 , 5 shown, the rear end of the mixing pipe 101 is internally provided with a mixing assisting module. The mixing assisting module comprises a mounting plate 201 provided on the inside wall of the rear end of the mixing pipe 101 and located at the rear side of the air inlet chamber 105, a flow guide head 202 is provided on the front side wall of the mounting plate 201, a plurality of flow guide channels 203 are provided on the side wall of the flow guide head 202 in the front-rear direction, and a plurality of air inlet openings 204 corresponding to the flow guide channels 203 are provided on the mounting plate 201.

[0030] As Figure 4 , 5As shown, the front side of the flow guide head 202 is a tapered cylinder shape that is adapted to the mixing chamber 103. The front side of the flow guide head 202 is designed as a tapered cylinder shape that is adapted to the mixing chamber 103, which can better guide the airflow into the mixing chamber 103, reduce airflow resistance, and improve combustion efficiency.

[0031] After the gas enters the rear end of the mixing chamber 103 via the gas guide pipe, it passes through the mounting plate 201 via the plurality of gas inlets 204, thereby being subdivided into a plurality of gas streams and flowing along the plurality of flow guide channels 203. The gas is divided into a plurality of gas streams flowing along the axial side ends of the flow guide head 202. After the combustion air is blown from the annularly distributed plurality of air blowing holes 107 to the plurality of gas streams, the mixing can be more rapid and sufficient, and the uniformity of the mixed gas and combustion air can be improved, thereby further improving the final combustion effect and combustion stability.

[0032] According to another embodiment of the present application, as shown in Figure 6 As shown, the gas guide pipe 104 is further provided with a first threaded connection sleeve 205 for screwing and fixing with the gas delivery pipe, and the air guide pipe 106 is further provided with a second threaded connection sleeve 206 for screwing and fixing with the air delivery pipe. The lower end outer side wall of the first threaded connection sleeve 205 is a regular hexagon, and the lower end outer side wall of the second threaded connection sleeve 206 is a regular hexagon. The gas guide pipe 104 and the air guide pipe 106 are respectively provided with the first threaded connection sleeve 205 and the second threaded connection sleeve 206 with regular hexagonal outer side walls. This design facilitates the use of a wrench for fastening, and conveniently achieves flexible fixing of the gas guide pipe 104 with the gas delivery pipe and flexible fixing of the air guide pipe 106 with the air delivery pipe.

[0033] According to another embodiment of the present application, as shown in Figure 6 As shown, the first threaded connection sleeve 205 is further provided with a first anti-slip sleeve 207, and the second threaded connection sleeve 206 is further provided with a second anti-slip sleeve 208. Through the first anti-slip sleeve 207, the user can conveniently adjust the first threaded connection sleeve 205 by screwing, thereby conveniently achieving preliminary connection and final separation of the first threaded connection sleeve 205 with the gas delivery pipe. Through the second anti-slip sleeve 208, the user can conveniently adjust the second threaded connection sleeve 206 by screwing, thereby conveniently achieving preliminary connection and final separation of the second threaded connection sleeve 206 with the air delivery pipe.

[0034] According to another embodiment of the present application, as shown in Figure 6As shown, the first threaded connecting sleeve 205 is further provided with a first isolation check ring 209 for isolating the first anti-skid sleeve 207, and the second threaded connecting sleeve 206 is further provided with a second isolation check ring 210 for isolating the second anti-skid sleeve 208. Through the first isolation check ring 209, the first anti-skid sleeve 207 can be prevented from being abraded by mistake when the first threaded connecting sleeve 205 is adjusted by a screwing tool; through the second isolation check ring 210, the second anti-skid sleeve 208 can be prevented from being abraded by mistake when the second threaded connecting sleeve 206 is adjusted by the screwing tool

[0035] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A natural draft fanless air inlet burner, comprising a mixing tube (101), a burner head (102) is arranged at the front end of the mixing tube (101), a mixing cavity (103) is arranged in the mixing tube (101), the front side of the mixing cavity (103) is a tapered cylinder with gradually reduced opening, a gas guide pipe (104) is arranged at the rear end of the mixing tube (101), characterized in that: The rear end side wall of the mixing pipe (101) is internally provided with an air inlet cavity (105), the rear end outer side wall of the mixing pipe (101) is provided with an air guide pipe (106) in communication with the air inlet cavity (105), and the rear end inner side wall of the mixing pipe (101) is provided with a plurality of air blowing holes (107) in communication with the air inlet cavity (105).

2. The non-fan natural draft burner of claim 1, wherein: The rear end of the mixing pipe (101) is internally provided with a mixing assisting module.

3. The non-fan natural draft burner of claim 2, wherein: The mixing assisting module comprises a mounting plate (201) arranged on the rear end inner side wall of the mixing pipe (101) and located at the rear side of the air inlet cavity (105), a flow guide head (202) is arranged on the front side wall of the mounting plate (201), a plurality of flow guide channels (203) are arranged on the side wall of the flow guide head (202) in the front-rear direction, and a plurality of air inlet openings (204) corresponding to the flow guide channels (203) are arranged on the mounting plate (201).

4. The non-fan natural draft burner of claim 3, wherein: A first threaded connecting sleeve (205) for screwing and fixing with a gas conveying pipe is further arranged on the gas guide pipe (104), a second threaded connecting sleeve (206) for screwing and fixing with an air conveying pipe is further arranged on the air guide pipe (106), the lower end outer side wall of the first threaded connecting sleeve (205) is a regular hexagon, and the lower end outer side wall of the second threaded connecting sleeve (206) is a regular hexagon.

5. The non-fan natural draft burner of claim 4, wherein: A first anti-skid sleeve (207) is further arranged on the first threaded connecting sleeve (205), and a second anti-skid sleeve (208) is further arranged on the second threaded connecting sleeve (206).

6. The non-fan natural draft burner of claim 5, wherein: The front side of the flow guide head (202) is a conical cylinder matched with the mixing cavity (103).

7. The non-fan natural draft burner of claim 6, wherein: A first isolation stop ring (209) for isolating the first anti-skid sleeve (207) is further arranged on the first threaded connecting sleeve (205), and a second isolation stop ring (210) for isolating the second anti-skid sleeve (208) is further arranged on the second threaded connecting sleeve (206).

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