CN217274182U

CN217274182U - Hydrogen-containing tail gas flame burner

Info

Publication number: CN217274182U
Application number: CN202220392191.0U
Authority: CN
Inventors: 马超
Original assignee: Kunshan Huiduobao Industrial Equipment Co ltd
Current assignee: Kunshan Huiduobao Industrial Equipment Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-23
Anticipated expiration: 2032-02-25

Abstract

The utility model belongs to the technical field of the combustor, a long naked light nozzle of hydrogenous tail gas is related to, include the casing and be located the nozzle body of casing, the casing includes casing front portion and casing rear portion, the nozzle body is located the casing front portion, the nozzle body divide into thin neck in proper order, the transition portion, cylindric portion and lamella portion, the sclausura is gone up and is fixed with the casing front portion, be equipped with the inboard gas of the thin neck of intercommunication on the terminal surface of casing front portion and insert mouthful and long naked light joint, the side of casing front portion is equipped with combustion-supporting air and inserts the mouth, be equipped with long naked light gas on the long naked light joint and insert the ignition in the nozzle body, long naked light air inserts the mouth and inserts the nozzle body. This combustor utilizes the ever-burning flame to ignite contains hydrogenous tail gas to give up the hole in advance of thin neck portion, let the combustible tail gas who contains hydrogen just mix in nozzle body rear, avoided the detonation problem, promoted the security, reduced the emission, also saved energy cost.

Description

Hydrogen-containing tail gas flame burner

Technical Field

The utility model relates to a combustor technical field, in particular to long naked light nozzle of hydrogeneous tail gas.

Background

In the process of refining petroleum and manufacturing chemical product raw materials, some chemical tail gases are generated in working conditions of a reaction kettle, a reaction tower, a distillation tower and the like, and the gases mainly contain harmful gases such as hydrogen, carbon monoxide, methane, ethane, toluene and the like. It has been the practice to use a flare to burn the waste gas and discharge it to the atmosphere. This is a hazard to the environment, and a flare is a simple disposal method that cannot completely crack the harmful substances.

Meanwhile, the combustible gas contains hydrogen in a certain proportion, so that the combustible gas is easy to burn, can cause the tempering problem when being burnt too fast, and is unsafe to use.

Therefore, a new tail gas burner is needed to be designed to solve the problems of environmental protection and safe use.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a burner for burning hydrogen-containing tail gas, which can control the burning of hydrogen-containing tail gas to be used as heat, thereby improving safety, reducing emission and saving energy cost.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a hydrogen-containing tail gas flame burner comprises a shell and a burner body positioned in the shell, wherein the shell comprises a shell front part and a shell rear part, the burner body is positioned in the front part of the shell and is sequentially divided into a thin neck part, a transition part, a cylindrical part and a petal-shaped part, the thin neck part is provided with no hole and is fixed with the front part of the shell, the transition part is uniformly distributed with front air mixing holes, the side surface of the cylindrical part is uniformly distributed with medium air mixing holes, vent holes are formed between the petal-shaped part and the inner wall of the front part of the shell, the end surface of the front part of the shell is provided with a gas access port and an ever-burning fire joint which are communicated with the inner side of the thin neck part, the side of the front part of the shell is provided with a combustion-supporting air access port, and the long open fire joint is provided with a long open fire gas access port, a long open fire air access port and an ignition device inserted into the burner body.

Specifically, the fuel gas inlet of the ever-burning fire is a 90-degree bent pipe.

Specifically, the axial direction of the front air mixing hole is parallel to the axis of the burner body.

Specifically, the axis of the middle air mixing hole deflects 45 degrees towards the air outlet direction relative to the radial direction of the burner body.

Specifically, a flange surface is arranged between the front part of the shell and the rear part of the shell, and a plurality of fixing holes are uniformly formed in the flange surface.

The utility model discloses technical scheme's beneficial effect is:

the burner utilizes the ever-burning fire to ignite the hydrogen-containing tail gas, abandons the premixing hole at the thin neck part, and leads the combustible tail gas containing hydrogen to be mixed at the rear part of the burner body, thereby avoiding the deflagration problem, improving the safety, being capable of being used in 10-90% hydrogen-containing gas, leading the burner to be directly used for heating the waste gas incinerator, the hazardous waste incinerator or other process hearths of a chemical plant, reducing the emission and saving the energy cost.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of a hydrogen-containing tail gas pilot burner;

FIG. 2 is a left side view of the hydrogen-containing tail gas long open flame burner of the embodiment.

The figures in the drawings represent:

1-shell, 11-shell front part, 111-gas inlet, 112-combustion air inlet, 12-shell rear part, 13-flange surface, 131-fixing hole;

2-long open fire joint, 21-long open fire gas inlet, 22-long open fire air inlet and 23-ignition device;

3-burner body, 31-thin neck, 32-front mixing hole, 33-middle mixing hole and 34-vent hole.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in figures 1 and 2, the hydrogen-containing tail gas long open flame burner of the utility model comprises a shell 1 and a burner body 3 positioned in the shell 1, wherein the shell 1 comprises a shell front part 11 and a shell rear part 12, the burner body 3 is positioned in the shell front part 11, the burner body 3 is sequentially divided into a thin neck part 31 and a transition part, cylindric portion and lamella portion, thin neck 31 goes up the sclausura and is fixed with casing front portion 11, evenly distributed has preceding gas mixing hole 32 in the transition portion, the side evenly distributed of cylindric portion has well gas mixing hole 33, form air vent 34 between the inner wall of lamella portion and casing front portion 11, be equipped with the inboard gas access port 111 of intercommunication thin neck 31 and long naked light joint 2 on the terminal surface of casing front portion 11, the side of casing front portion 11 is equipped with combustion-supporting air access port 112, be equipped with long naked light gas access port 21 on the long naked light joint 2, long naked light air access port 22 and insert the ignition 23 in nozzle body 3. When the burner works, a proper amount of ever-burning flame gas enters the ever-burning flame joint 2 from the ever-burning flame gas inlet 21 and is mixed with air entering the ever-burning flame air inlet 22 in a fixed ratio, and the mixture is ignited by the ignition device 23 to form ever-burning combustion regardless of whether hydrogen-containing tail gas passes through the burner. If hydrogen-containing tail gas enters the fuel gas inlet 111, air with a specific proportion is conveyed from the combustion air inlet 112 to enter the burner together through an external pipeline control, and at the moment, the mixed gas of the two is ignited by long-time open fire, so that hydrogen and other combustible gases in the tail gas are combusted. Because the premixing hole of the thin neck part 11 is abandoned, the combustible tail gas containing hydrogen is mixed at the rear part of the burner body 3, the deflagration problem is avoided, the safety is improved, the burner can be used in 10-90% hydrogen-containing gas, the burner can be directly used for heating a waste gas incinerator, a hazardous waste incinerator or other process hearths of a chemical plant, the emission is reduced, and the energy cost is also saved.

As shown in fig. 1 and 2, the ever-burning flame gas inlet 21 is a 90 ° elbow. The structure of 90 return bends can produce certain flow resistance to hydrogenous tail gas, lets hydrogenous tail gas flow slow down, avoids the hydrogen supply too fast to lead to the burning aggravation and burn out the nozzle.

As shown in fig. 1, the axial direction of the front mixing hole 32 is parallel to the axis of the burner body 3, and the axis of the middle mixing hole 33 is deviated by 45 ° in the outlet direction relative to the radial direction of the burner body 3. Combustion air can pass through preceding gas mixing hole 32, well gas mixing hole 33 and air vent 34 in the nozzle body 3 from outside nozzle body 3, and no matter which position, combustion air all has backward spun initial velocity, so can take place in the position near the back of nozzle body 3 with the mixture of hydrogenous tail gas, and the burning also mainly takes place at casing rear portion 12, can avoid nozzle body 3 high temperature and damage.

As shown in fig. 1 and 2, a flange surface 13 is provided between the housing front 11 and the housing rear 12, and a plurality of fixing holes 131 are uniformly formed on the flange surface 13. The flange surface 13 can be used to fix the burner outside the furnace, and the position thereof can be fixed.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a hydrogenous tail gas ever-burning flame nozzle which characterized in that: the burner comprises a shell and a burner body positioned in the shell, wherein the shell comprises a shell front part and a shell rear part, the burner body is positioned in the shell front part, the burner body is sequentially divided into a thin neck part, a transition part, a cylindrical part and a petal-shaped part, the thin neck part is provided with no hole and is fixed with the shell front part, the transition part is provided with front air mixing holes, the side surfaces of the cylindrical part are uniformly distributed with middle air mixing holes, the petal-shaped part and the inner wall of the shell front part form air vents, the end surface of the shell front part is provided with a communicating gas access port and an open flame joint, the inner side of the thin neck part is provided with a combustion-supporting air access port, and the open flame joint is provided with an open flame gas access port, an open flame air access port and an ignition device inserted into the burner body.

2. The hydrogen-containing tail gas pilot burner of claim 1, wherein: the fuel gas access port is a 90-degree bent pipe.

3. The hydrogen-containing tail gas pilot burner of claim 2, wherein: the axial direction of the front air mixing hole is parallel to the axis of the burner body.

4. The hydrogen-containing tail gas pilot burner of claim 1, wherein: and the axis of the middle air mixing hole deflects 45 degrees towards the air outlet direction relative to the radial direction of the burner body.

5. The hydrogen-containing tail gas pilot burner of claim 1, wherein: a flange face is arranged between the front portion of the shell and the rear portion of the shell, and a plurality of fixing holes are uniformly formed in the flange face.