CN221324481U

CN221324481U - Pipeline type burner

Info

Publication number: CN221324481U
Application number: CN202322511175.6U
Authority: CN
Inventors: 李匠成
Original assignee: Dongguan Huicheng Gas Equipment Co ltd
Current assignee: Dongguan Huicheng Gas Equipment Co ltd
Filing date: 2023-09-15
Publication date: 2024-07-12
Anticipated expiration: 2033-09-15

Abstract

The utility model discloses a pipeline type combustor, which comprises: the pipeline body, in the shaping of pipeline body have the conveying channel who is used for the gas to carry, be provided with the combustion channel parallel with conveying channel on pipeline body outer wall, this combustion channel includes: the opening channel, a left channel and a right channel which are positioned at two sides of the opening channel; the conveying channel is provided with a first air hole communicated with the combustion channel, and the axis of the first air hole is positioned in the opening channel. According to the utility model, after the pipeline bodies with different shapes are in butt joint, the net-shaped distributed gas pipeline can be formed, and finally, a large-area combustion range can be formed. In addition, the utility model is provided with the combustion channel, so that flame combustion stability can be ensured.

Description

Pipeline type burner

Technical field:

The utility model relates to the technical field of combustion equipment, in particular to a pipeline type combustor used in the combustion equipment.

The background technology is as follows:

Combustion devices are used in a variety of devices requiring heating, such as heating devices used in air drying devices. The inventor of the present utility model has proposed an utility model patent named as an air heating device of a drying device, see patent number: 202220766864.4 in chinese patent literature. The main body of the gas furnace adopted in the technical scheme is a strip-shaped furnace body, a gas channel is arranged in the furnace body, and a plurality of gas holes communicated with the gas channel are arranged on the side surface of the furnace body. The fuel gas is input through the fuel gas channel and output through the fuel gas hole, and the fuel gas port is ignited to start burning, so that heat is generated.

The furnace body used in the technical scheme is a pipeline type combustor, and has the following problems:

Firstly, most of the prior gas pipelines are in a straight shape, the generated flame heating range is limited, and in large combustion heating equipment, a plurality of groups of combustion furnaces are needed to be used for heating;

In the gas pipeline adopted in the existing combustion furnace, the gas is directly output through the gas holes, and finally the formed multi-point flame is easy to form local heating.

Finally, as the side of the gas hole is not shielded, the gas can be influenced by the air flow at the side in the combustion process, so that the flame shakes severely and is even extinguished. Meanwhile, in the structure, the gas hole is directly communicated with the gas channel and the outside air, and under the condition of insufficient air pressure in the gas channel, the hidden danger of tempering can be generated.

In order to solve the problems, the present inventors have made long-term studies and tests and have proposed the following technical solutions.

The utility model comprises the following steps:

The utility model aims to overcome the defects of the prior art and provide the pipeline type combustor capable of improving combustion stability and safety.

In order to solve the technical problems, the utility model adopts the following technical scheme: a duct burner comprising: the pipeline body, in the shaping of pipeline body have the conveying channel who is used for the gas to carry, be provided with the combustion channel parallel with conveying channel on pipeline body outer wall, this combustion channel includes: the opening channel, a left channel and a right channel which are positioned at two sides of the opening channel; the conveying channel is provided with a first air hole communicated with the combustion channel, and the axis of the first air hole is positioned in the opening channel.

Furthermore, in the above technical scheme, the outer wall of the pipe body is formed with a left baffle and a right baffle which form a combustion channel, a gap between the left baffle and the right baffle forms the opening channel, the left baffle and the outer wall of the pipe body form the left channel, and the right baffle and the outer wall of the pipe body form the right channel.

Furthermore, in the above technical scheme, the left baffle and the right baffle are bending shapes symmetrically arranged along the axis of the open channel.

In the above technical solution, further, continuous undulating protrusions are formed on the side walls of the left and right sides of the conveying channel.

In the above technical solution, the upper portion of the cross section of the conveying channel is shaped to have a gradually smaller width, and the combustion channel is located at the narrowest position of the upper portion of the conveying channel.

Furthermore, in the above technical scheme, the port of the pipe body is integrally formed with an abutting plate for abutting with other pipe bodies or with the sealing plate.

In the above technical scheme, the conveying channel is provided with a second air hole communicated with the left channel and a third air hole communicated with the right channel; the left baffle plate is provided with a left air hole corresponding to the second air hole, and the right baffle plate is provided with a right air hole corresponding to the third air hole.

In the above technical scheme, the second air hole and the third air hole have the same pore diameter and are smaller than the pore diameter of the first air hole.

Furthermore, in the above technical scheme, the pipe body is formed with an air inlet pipe communicated with the conveying channel.

Furthermore, in the above technical scheme, the pipeline body is in a shape of a Chinese character 'yi', or a shape of a Chinese character 'T', or a shape of a Chinese character 'cross', and the conveying channels in the pipeline body are mutually communicated, and the combustion channels in the pipeline body are mutually communicated.

After the technical scheme is adopted, the utility model has the following advantages compared with the prior art:

1. According to the utility model, after the pipeline bodies with different shapes are in butt joint, the net-shaped distributed gas pipeline can be formed, and finally, a large-area combustion range can be formed.

2. The utility model is provided with a combustion channel on the pipeline body, the combustion channel is communicated with the conveying channel through three groups of vent holes, and the fuel gas on the left side and the right side is mixed with the fuel gas of the first air hole in the middle after being guided by bending on the left baffle plate and the right baffle plate, and finally is sprayed outwards through the opening channel and ignited to form main combustion flame. In addition, the left and right baffles are respectively provided with left and right air holes, and the left and right air holes can be used as the supplementary combustion points of the main combustion flame.

3. The utility model adopts the combustion channel as isolation, which not only ensures the stable combustion of flame, but also prevents backfire phenomenon.

Description of the drawings:

FIG. 1 is a perspective view of a first embodiment of the present utility model;

FIG. 2 is a perspective view of an alternative embodiment of the present utility model;

FIG. 3 is a left side view of a first embodiment of the utility model;

FIG. 4 is a perspective view of a second embodiment of the present utility model;

Fig. 5 is a perspective view of a third embodiment of the present utility model;

fig. 6 is a perspective view of a fourth embodiment of the present utility model.

The specific embodiment is as follows:

The utility model will be further described with reference to specific examples and figures.

The present utility model is a duct burner for use in a combustion apparatus, as shown in fig. 1 to 3, which is a first embodiment of the present utility model, comprising: the pipe body 1 is provided with a conveying passage 10 for conveying fuel gas in the pipe body 1.

In the embodiment, the pipe body 1 is a straight pipe, and the outer wall of the pipe body 1 is provided with a combustion channel 20 parallel to the conveying channel 10. The combustion channel 20 includes: an open channel 21, a left channel 22 and a right channel 23 on both sides of the open channel 21. The conveying channel 10 is provided with a first air hole 3 communicated with the combustion channel 20, and the axis of the first air hole 3 is positioned in the opening channel 21. The conveying channel 10 is provided with a second air hole 4 communicated with the left channel 22 and a third air hole 5 communicated with the right channel 23.

As shown in fig. 3, the combustion channel 20 is formed by molding the left baffle 11 and the right baffle 12 on the outer wall of the duct body 1. Specifically, the cross sections of the left baffle plate and the right baffle plate are in a bending shape, the left baffle plate 11 and the right baffle plate 12 are symmetrically arranged along the axis of the opening channel 21, the two bending parts of the left baffle plate and the right baffle plate are oppositely arranged, and the space between the two bending parts forms the combustion channel 20. Wherein, the gap between the left baffle 11 and the right baffle 12 forms the open channel 21, the left baffle 11 and the outer wall of the pipeline body 1 form the left channel 22, and the right baffle 12 and the outer wall of the pipeline body 1 form the right channel 23.

When in use, the fuel gas entering the conveying channel 10 enters the combustion channel 20 through the first air hole 3, the second air hole 4 and the third air hole 5, and then is ignited by the igniter to form combustion flame.

As shown in fig. 3, the continuous undulating protrusions 100 are formed on the side walls of the left and right sides of the conveying passage 10, and at the same time, the upper portion of the conveying passage 10 is shaped to have a gradually decreasing width, and the combustion passage 20 is located near the narrowest position of the upper portion of the conveying passage 10. I.e. the upper part of the transfer channel 10 forms a conical channel. With this structure, since the width of the conveying passage 10 near the uppermost end of the combustion passage 20 is small, the gas is discharged at a high speed in the process of entering the gas passage 20 from bottom to top through the conveying passage 10, since the diameter of the passage becomes small, the gas discharge pressure is increased. Meanwhile, the undulating bulges 100 on the side walls of the left and right sides of the conveying channel 10 can form turbulent flow for the fuel gas, so that negative pressure spaces are avoided being formed on the two sides of the first air hole 3 in the conveying channel 10, and the fuel gas is ensured to be smoothly output by the second air hole 4 and the third air hole 5.

The aperture of the second air hole 4 is equal to that of the third air hole 5, and is smaller than that of the first air hole 3. In this way, the first air hole 3 can obtain enough air flow, the second air hole 4 and the third air hole 5 can obtain larger air flow speed, and after being guided by the bends on the left baffle plate 11 and the right baffle plate 12, the fuel gas is mixed with the fuel gas of the first air hole 3 in the middle, and finally is sprayed outwards through the open channel 21 and is ignited to serve as the main combustion flame of the utility model.

In order to further increase the flame point, the left baffle 11 is provided with a left air hole 111 corresponding to the second air hole 4, and the right baffle 12 is provided with a right air hole 121 corresponding to the third air hole 5. When the gas pressure in the gas passage 10 is sufficient, a part of the gas may be outputted through the left and right gas holes 111, 121 as a supplementary combustion point of the main combustion flame. Similarly, the apertures of the left air hole 111 and the right air hole 121 are equal and smaller than the aperture of the first air hole 3.

The pipeline body 1 is provided with an air inlet pipe 14 communicated with the conveying channel 10. The fuel gas may enter the delivery channel 10 through an inlet pipe 14.

The port of the pipeline body 1 is integrally formed with a butt plate 13 for butt joint with other pipeline bodies, and a connecting hole 131 is formed in the butt joint 13. When a plurality of pipeline bodies are required to be butted to form a longer gas channel, the butted plates 13 of the two pipeline bodies can be butted (the butted positions are required to be provided with sealing gaskets), and then the two pipeline bodies are fastened after passing through the connecting holes 131 through bolts.

As shown in fig. 4, this is a second embodiment of the present utility model, and the pipe body 1A in the second embodiment is different from the first embodiment in that the pipe body 1A is not provided with the intake pipe 14. The second embodiment can be docked with the first embodiment. In addition, in order to form a relatively closed pipeline for the conveying pipeline, the sealing plates 6 are required to be used for sealing two ends of the pipeline body.

The sealing plate 6 is used for abutting against the abutting plate 13, so that the sealing plate 6 is provided with abutting holes 61 corresponding to the connecting holes 131. In addition, the combustion channel 20 is also blocked at the same time as the gas pipe is blocked, and a protrusion 62 for blocking the combustion channel 20 is formed above the sealing plate 6.

The butt joint of the first embodiment and the second embodiment can only realize continuous extension in the axial length, and in order to realize connection of a plurality of pipeline bodies in the transverse direction and the longitudinal direction to form a net-shaped distributed gas pipeline, the pipeline bodies of the utility model can also adopt the following shapes. As shown in fig. 5, this is a third embodiment of the present utility model, in which the pipe body 1B is in a T shape. As shown in fig. 6, this is a fourth embodiment of the present utility model, in which the pipe body 1C is in a cross shape. No matter what model the pipeline body 1 adopts, the conveying channels 10 of the pipeline body 1 need to be mutually communicated, and meanwhile, the combustion channels 20 in the pipeline body 1 also need to be mutually communicated, so that after the pipeline bodies with different models are butted, a net-shaped distributed gas pipeline can be formed, and finally, a large-area combustion range can be formed through one air inlet pipe 14.

It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.

Claims

1. A duct burner comprising: pipeline body, in the shaping of pipeline body have the conveying channel who is used for the gas to carry, its characterized in that: be provided with the combustion channel that is parallel with conveying channel on pipeline body outer wall, this combustion channel includes: the opening channel, a left channel and a right channel which are positioned at two sides of the opening channel;

The conveying channel is provided with a first air hole communicated with the combustion channel, and the axis of the first air hole is positioned in the opening channel.

2. A duct burner as claimed in claim 1, wherein: the outer wall of the pipeline body is provided with a left baffle and a right baffle which form a combustion channel, a gap between the left baffle and the right baffle forms the opening channel, the left baffle and the outer wall of the pipeline body form the left side channel, and the right baffle and the outer wall of the pipeline body form the right side channel.

3. A duct burner as claimed in claim 2, wherein: the left baffle and the right baffle are of bending shapes symmetrically arranged along the axis of the open channel.

4. A duct burner as claimed in claim 2, wherein: continuous undulating bulges are formed on the side walls of the left side and the right side of the conveying channel.

5. A duct burner as claimed in claim 4, wherein: the upper part of the cross section of the conveying channel is in a shape with gradually reduced width, and the combustion channel is close to the narrowest position of the upper part of the conveying channel.

6. A duct burner as claimed in claim 2, wherein: the port of the pipeline body is integrally formed with an abutting plate which is used for abutting with other pipeline bodies or the sealing plate.

7. A duct burner as claimed in any one of claims 2 to 6, wherein: the conveying channel is provided with a second air hole communicated with the left channel and a third air hole communicated with the right channel; the left baffle plate is provided with a left air hole corresponding to the second air hole, and the right baffle plate is provided with a right air hole corresponding to the third air hole.

8. A duct burner as claimed in claim 7, wherein: the aperture of the second air hole is equal to that of the third air hole, and is smaller than that of the first air hole; the apertures of the left air hole and the right air hole are equal and smaller than the aperture of the first air hole.

9. A duct burner as claimed in claim 7, wherein: the pipeline body is provided with an air inlet pipe communicated with the conveying channel.

10. A duct burner as claimed in claim 7, wherein: the pipeline body is in a shape like a Chinese character 'Yi', or a T shape, or a cross shape, and the conveying channels in the pipeline body are mutually communicated, and the combustion channels in the pipeline body are mutually communicated.