CN105066129B

CN105066129B - Momentum-adjustable pure oxygen nozzle

Info

Publication number: CN105066129B
Application number: CN201510445526.5A
Authority: CN
Inventors: 石宝; 李会涛; 王振江; 张继英
Original assignee: Hebei Zhongbei Environmental Protection Technology Co ltd
Current assignee: Foshan Tiantuo Hardware Products Co ltd
Priority date: 2015-07-27
Filing date: 2015-07-27
Publication date: 2017-04-12
Anticipated expiration: 2035-07-27
Also published as: CN105066129A

Abstract

The invention relates to a momentum-adjustable pure oxygen nozzle. The momentum-adjustable pure oxygen nozzle comprises a nozzle central tube, a nozzle middle tube and a nozzle outer tube. The nozzle central tube, the nozzle middle tube and the nozzle outer tube are coaxially arranged from inside to outside, one end of the pure oxygen nozzle is the operation end of the nozzle, the other end of the pure oxygen nozzle is the working end of the nozzle, and a gas momentum adjusting ring is coaxially installed between the working end and the nozzle central tube and the nozzle middle tube. The nozzle outer tube and the nozzle middle tube are coaxially packaged at the operation end, and an oxygen momentum adjusting ring is coaxially installed between the working end and the nozzle middle tube. A gas inlet tube is formed in the portion, at the operation end, of the nozzle middle tube in a radial communication manner, and an oxygen inlet tube is arranged at the portion, at the operation end, of the nozzle outer tube in a radial communication manner. According to the momentum-adjustable pure oxygen nozzle, gas and main oxygen enter the inside of the nozzle through an off-center gas tube, gas flow deviates to rotate in the outflow process, and the ratio of the rotational speed to the axial speed is adjusted through a flow guide block, the shape of the flame is accordingly changed in cooperation with a nozzle opening, the shape, the length and the momentum of the flame can be adjusted according to requirements, and the application range and the purposes of the nozzle are effectively expanded.

Description

A kind of adjustable pure oxygen burner of momentum

Technical field

The invention belongs to field of metallurgy, is related to kiln combustion apparatus --- pure oxygen burner, especially a kind of momentum scalable Pure oxygen burner.

Background technology

Pure oxygen burner both domestic and external has a lot, in order to control flame characteristics (as length, shape, high temperature zone position, momentum are big It is little etc.), meet different technological requirements, different structures are employed, typically there are oxygen stream and combustion gas stream to be in concentric circular jet Go out, or two air-flows are flowed out by multiple apertures；Some burners in order that flow rotation and set using vortex runner or in runner Put flow deflector, complex structure, and parameter once it is determined that, flame characteristics is difficult to change, and can only work under design condition, can Obtain optimal effect.

By retrieval, following two related patent documents are found：

1st, multichannel coke-stove gas pure oxygen reformation nozzle for preparing synthesized gas (CN102225742A) with uniform board, belongs to industry The combustion apparatus of kiln, mainly solves the problems, such as that short traditional burner service life, inconvenient maintenance, price are high.It include burner body, Gasification agent inlet, burner mouth, sealing gasket and bolt fastener, the gasification agent inlet lower section is provided with gasifying agent conduit, the burning Portion is provided with the center internals of tubulose in mouth body, and described center internals include the first center internals and the second center internals；Institute The side wall for stating the second center internals is provided with steam inlet, and the steam inlet is passed through first center internals and the second center In gap between internals.

2nd, a kind of coal slurry gasifier overhead pure oxygen gas fuel goes into operation and preheats burner (CN104449863A).The water coal Slurry gasification furnace overhead pure oxygen gas fuel go into operation preheating burner include：There is fuel-firing gas-firing in fuel-firing gas-firing pipe, fuel-firing gas-firing pipe Passage；Gas spray head, gas spray head is connected with fuel-firing gas-firing import；Fire rod, fire rod is located in fuel-firing gas-firing passage；Oxygen Pipe, oxygen hose is set in the outside of fuel-firing gas-firing pipe, between oxygen hose and fuel-firing gas-firing pipe oxygen channel is formed；Oxygen nozzle, Oxygen nozzle is connected with oxygen inlet；And water-cooling jacket, water-cooling jacket is set in the outside of oxygen hose, water-cooling jacket and oxygen hose Between form cooling-water duct.

By analysis, flimsy first center internals conveniently can be extracted out and changed by foregoing invention patent application, reduce dimension Accomplish this, combustion high temperature area departs from the oral portion of burner, extends the service life of burner；And the combustion of coal slurry gasifier overhead pure oxygen The gas fuel oil preheating burner that goes into operation can be removed from after the feedwater coal slurry gasification furnace preheating of conventional gasification furnace air oil gas-preheating burner Differ with the process of process burner replacing, but the technical scheme of the goal of the invention with the present patent application and reality.

The content of the invention

It is an object of the invention to overcome the deficiencies in the prior art part, there is provided a kind of clever structure and flame profile, length The pure oxygen burner that degree and momentum can be adjusted according to power and needs.

The present invention solves its technical problem and takes technical scheme below to realize：

A kind of adjustable pure oxygen burner of momentum, including burner central canal, burner intervalve, burner outer tube, burner center , to be coaxially disposed from inside to outside, one end of pure oxygen burner is burner operating side, and the other end is for pipe, burner intervalve, burner outer tube Burner working end；The operating side of pure oxygen burner is step end face, and the end face of the burner operating side of outermost end is using front stifled disk radial direction Closure, radial symmetric is respectively arranged with glory hole and burning torch installing hole on the stifled disk, at the burner center of operating side Caliber is to being provided with and communicated with an inlet tube；To flush end face, the burner central canal in the operating side is adopted for the working end of pure oxygen burner With rear stifled disk radial-plugging, the glory hole that disk is blocked up before correspondence on the rear stifled disk is also coaxially arranged with center oxygen outlet, right The burning torch installing hole of stifled disk is also coaxially arranged with another burning torch installing hole before answering；Burner intervalve is in operation end position and burning Mouth central canal coaxial packaging, between work end position and burner central canal a combustion gas momentum regulation ring is coaxially installed with；Burner Outer tube, in operation end position coaxial packaging, between work end position and burner intervalve one is coaxially installed with burner intervalve Oxygen momentum regulation ring；Burner intervalve arranges a fuel gas inlet pipe in operation end position radial communication, and burner outer tube is in operation End position radial communication arranges an oxygen inlet tube.

And, a gas diversion block is installed between the burner intervalve and burner central canal in fuel gas inlet pipe, in oxygen An oxygen baffle is installed between burner intervalve and burner outer tube in gas inlet tube.

And, the burner intervalve, burner outer tube are arranged with the axis bias of burner central canal.

Advantages of the present invention and good effect are：

1st, combustion gas of the invention and main oxygen are entered inside burner through the trachea of biasing, and air-flow was flowing out because of biasing Rotation is produced in journey, and the ratio of rotary speed and axial velocity is adjusted by baffle, so as to coordinate with burner mouth fire is changed Flame shape, allows flame profile, length and momentum to adjust as needed, has effectively expanded the scope of application and purposes of burner.

2nd, the present invention devises mobile oxygen momentum regulation ring and combustion gas momentum regulation ring, by pusher collar inside and outside Position, can change the sectional area of gas channel, and the burner mouth momentum of oxygen and combustion gas is thus changed respectively, so as to change burning speed Degree and flame high temperature zone position.

Description of the drawings

Fig. 1 is the structural front view of the present invention；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the left view of Fig. 1；

Fig. 4 is the A-A of Fig. 1 to cross-sectional view；

Fig. 5 is the B-B direction cross-sectional view of Fig. 1；

Fig. 6 is the C-C of Fig. 3 to cross-sectional view；

Fig. 7 is the stereochemical structure appearance schematic diagram of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawings and by specific embodiment the invention will be further described, and following examples are descriptive , it is not determinate, it is impossible to which protection scope of the present invention is limited with this.

A kind of adjustable pure oxygen burner of momentum, including burner central canal 1, burner intervalve 3, burner outer tube 8, in burner To be coaxially disposed from inside to outside, one end of pure oxygen burner is burner operating side, the other end for heart pipe, burner intervalve, burner outer tube For burner working end；The operating side of pure oxygen burner is step end face, and the end face of the burner operating side of outermost end adopts front stifled disk 11 Radial-plugging, radial symmetric is respectively arranged with glory hole 9 and burning torch installing hole 10 on the stifled disk, in the burning of operating side Mouth central canal radial communication is provided with an inlet tube 2；The working end of pure oxygen burner is to flush end face, in the burner of the operating side Heart pipe adopts the rear radial-plugging of stifled disk 14, and the glory hole that disk is blocked up before correspondence on the rear stifled disk is also coaxially arranged with central oxygen Pore 15, the center oxygen outlet is also used as glory hole simultaneously, and the burning torch installing hole of stifled disk also coaxially sets before correspondence It is equipped with another burning torch installing hole 16；Burner intervalve is operating end position and burner central canal coaxial packaging, in working end position Put and a combustion gas momentum regulation ring 13 is coaxially installed between burner central canal, be interference fit between the regulation ring and central canal Or be threaded connection, regulation ring and central canal are fitted close because of expanded by heating when burner works, and position is fixed；Burner outer tube With burner intervalve in operation end position coaxial packaging, between work end position and burner intervalve an oxygen is coaxially installed with Momentum regulation ring 12, the function of the regulation ring is identical with combustion gas momentum regulation ring；By the inside and outside position of mobile momentum regulation ring, The sectional area of gas channel can be changed, so as to change its momentum.

Burner intervalve arranges a fuel gas inlet pipe 4, the burner in fuel gas inlet pipe in operation end position radial communication One gas diversion block 5 is installed between intervalve and burner central canal；Burner outer tube arranges an oxygen in operation end position radial communication Gas inlet tube 6, between the burner intervalve and burner outer tube in oxygen inlet tube an oxygen baffle 7 is installed, and this two are led The guide face of stream block is in 45 ° of angles with air inlet pipe axis, and the ratio of rotary speed and axial velocity is changed by changing this angle Value, so as to coordinate with burner mouth flame profile is changed.Baffle does not provide single-piece using version general at present Concrete structure.

The position of mobile oxygen momentum regulation ring and combustion gas momentum regulation ring, can respectively change the burner of oxygen and combustion gas Mouth momentum, so as to change burning speed and flame high temperature zone position.

In the present invention, the burner intervalve, burner outer tube and burner central canal are biasing and arrange, i.e. oxygen inlet tube Axis with fuel gas inlet pipe and burner central canal is in non-90 degree angle, thus can make combustion gas and oxygen through the inlet tube of biasing Into inside burner, two kinds of air-flows produce rotation because of biasing during outflow, improve flow velocity.

Claims

1. the adjustable pure oxygen burner of a kind of momentum, it is characterised in that：Including burner central canal, burner intervalve, burner outer tube, , to be coaxially disposed from inside to outside, one end of pure oxygen burner is burner operating side for burner central canal, burner intervalve, burner outer tube, The other end is burner working end；The operating side of pure oxygen burner is step end face, and the end face of the burner operating side of outermost end is using front Stifled disk radial-plugging, radial symmetric is respectively arranged with glory hole and burning torch installing hole on the stifled disk, in operating side Burner central canal radial communication is provided with an inlet tube；The working end of pure oxygen burner is to flush end face, in the burner of the operating side Central canal adopts rear stifled disk radial-plugging, and the glory hole that disk is blocked up before correspondence on the rear stifled disk is also coaxially arranged with central oxygen Pore, the burning torch installing hole of stifled disk is also coaxially arranged with another burning torch installing hole before correspondence；Burner intervalve is in operating side Position and burner central canal coaxial packaging, a combustion gas momentum are coaxially installed between work end position and burner central canal and are adjusted Ring；Burner outer tube is operating end position coaxial packaging with burner intervalve, coaxial between work end position and burner intervalve One oxygen momentum regulation ring is installed；Burner intervalve arranges a fuel gas inlet pipe in operation end position radial communication, outside burner Pipe arranges an oxygen inlet tube in operation end position radial communication.

2. the adjustable pure oxygen burner of momentum according to claim 1, it is characterised in that：Burner in fuel gas inlet pipe One gas diversion block is installed between intervalve and burner central canal, the burner intervalve in oxygen inlet tube and burner outer tube it Between an oxygen baffle is installed.

3. the adjustable pure oxygen burner of momentum according to claim 1, it is characterised in that：The burner intervalve, burner Outer tube is arranged with the axis bias of burner central canal.