The adjustable pure oxygen burner of a kind of momentum
Technical field
The invention belongs to field of metallurgy, relate to kiln combustion apparatus---pure oxygen burner, the adjustable pure oxygen burner of especially a kind of momentum.
Background technology
Pure oxygen burner both domestic and external has a lot, in order to control flame characteristics (as length, shape, position, high-temperature region, momentum size etc.), meet different technological requirements, have employed different structures, typical aerobic air-flow and gas-flow are that concentric circles flows out, or two air-flows are flowed out by multiple aperture; Some burners adopt vortex runner or in runner, arrange flow deflector to make flow rotation, complex structure, and parameter is once determine, flame characteristics is difficult to change, can only work under design condition, can obtain best effect.
By retrieval, find following two sections of relevant patent documents:
1, be with multichannel coke-stove gas pure oxygen reformation nozzle for preparing synthesized gas (CN102225742A) of uniform board, belong to the combustion apparatus of Industrial Stoves, mainly solve the problem that traditional burner service life is short, inconvenient maintenance, price are high.It comprises burner body, gasification agent inlet, burner mouth, sealing gasket and bolt fastener, gasifying agent conduit is provided with below described gasification agent inlet, described burner body inside is provided with the center internals of tubulose, and described center internals comprise the first center internals and the second center internals; The sidewall of described second center internals is provided with steam inlet, and described steam inlet passes in the gap between described first center internals and the second center internals.
2, a kind of coal slurry gasifier overhead pure oxygen gas fuel goes into operation preheating burner (CN104449863A).The described coal slurry gasifier overhead pure oxygen gas fuel preheating burner that goes into operation comprises: fuel-firing gas-firing pipe, has fuel-firing gas-firing passage in fuel-firing gas-firing pipe; 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 hose, oxygen hose is set in the outside of fuel-firing gas-firing pipe, forms oxygen channel between oxygen hose and fuel-firing gas-firing pipe; Oxygen nozzle, oxygen nozzle is connected with oxygen inlet; And water-cooling jacket, water-cooling jacket is set in the outside of oxygen hose, forms cooling-water duct between water-cooling jacket and oxygen hose.
By analyzing, flimsy first center internals conveniently can be extracted out and be changed by foregoing invention patent application, and reduce maintenance cost, combustion high temperature district departs from the oral portion of burner, extends the service life of burner; And coal slurry gasifier overhead pure oxygen gas fuel go into operation preheating burner can remove from the past gasification furnace air oil gas-preheating burner to the process changed with process burner after coal slurry gasifier preheating, but with the goal of the invention of the present patent application and the technical scheme of reality not identical.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of structure ingenious and flame profile, length and momentum can carry out according to power and needs the pure oxygen burner that regulates.
The present invention solves its technical problem and takes following technical scheme to realize:
The adjustable pure oxygen burner of a kind of momentum, comprise burner central tube, burner intervalve, burner outer tube, burner central tube, burner intervalve, burner outer tube are for coaxially to arrange from inside to outside, and one end of pure oxygen burner is burner operating side, and the other end is burner working end; The operating side of pure oxygen burner is step end face, the end face of the burner operating side of outermost end adopts front stifled dish radial-plugging, on this stifled dish, radial symmetric is respectively arranged with glory hole and burning torch installing hole, and the burner central tube radial communication of operating side is provided with an inlet tube; The working end of pure oxygen burner is for flushing end face, stifled dish radial-plugging after burner central tube in this operating side adopts, before corresponding on this rear stifled dish, the glory hole of stifled dish is also coaxially arranged with central oxygen pore, and before corresponding, the burning torch installing hole of stifled dish is also coaxially arranged with another burning torch installing hole; Burner intervalve, in position, operating side and burner central tube coaxial packaging, is coaxially installed with a combustion gas momentum adjustable ring between position, working end and burner central tube; Burner outer tube and burner intervalve, in position, operating side coaxial packaging, are coaxially installed with an oxygen momentum adjustable ring between position, working end and burner intervalve; Burner intervalve arranges a fuel gas inlet pipe in position, operating side radial communication, and burner outer tube arranges an oxygen inlet tube in position, operating side radial communication.
And, the burner intervalve in fuel gas inlet pipe and install a gas diversion block between burner central tube, the burner intervalve in oxygen inlet tube and install an oxygen baffle between burner outer tube.
And described burner intervalve, burner outer tube are all arranged with the axis bias of burner central tube.
Advantage of the present invention and good effect are:
1, combustion gas of the present invention and main oxygen enter burner inside through biased tracheae, air-flow produces because of biased and rotates in outflow process, and the ratio of rotary speed and axial velocity is regulated by baffle, thus coordinate change flame profile with burner mouth, flame profile, length and momentum can be regulated as required, effectively expanded the scope of application and the purposes of burner.
2, the present invention devises mobile oxygen momentum adjustable ring and combustion gas momentum adjustable ring, by the inside and outside position of pusher collar, the sectional area of gas channel can be changed, change the burner mouth momentum of oxygen and combustion gas thus respectively, thus change burning velocity and position, flame high-temperature region.
Accompanying drawing explanation
Fig. 1 is 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 that the A-A of Fig. 1 is to cross-sectional view;
Fig. 5 is that the B-B of Fig. 1 is to cross-sectional view;
Fig. 6 is that the C-C of Fig. 3 is to cross-sectional view;
Fig. 7 is stereochemical structure appearance schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
The adjustable pure oxygen burner of a kind of momentum, comprise burner central tube 1, burner intervalve 3, burner outer tube 8, burner central tube, burner intervalve, burner outer tube are for coaxially to arrange from inside to outside, and one end of pure oxygen burner is burner operating side, and the other end is burner working end; The operating side of pure oxygen burner is step end face, the end face of the burner operating side of outermost end adopts front stifled dish 11 radial-plugging, on this stifled dish, radial symmetric is respectively arranged with glory hole 9 and burning torch installing hole 10, and the burner central tube radial communication of operating side is provided with an inlet tube 2; The working end of pure oxygen burner is for flushing end face, stifled dish 14 radial-plugging after burner central tube in this operating side adopts, before corresponding on this rear stifled dish, the glory hole of stifled dish is also coaxially arranged with central oxygen pore 15, this central oxygen pore also uses as glory hole simultaneously, and before corresponding, the burning torch installing hole of stifled dish is also coaxially arranged with another burning torch installing hole 16; Burner intervalve is in position, operating side and burner central tube coaxial packaging, a combustion gas momentum adjustable ring 13 is coaxially installed with between position, working end and burner central tube, it is interference fit or be threaded connection between this adjustable ring and central tube, during burner work, adjustable ring and central tube closely cooperate because of expanded by heating, and position is fixed; Burner outer tube and burner intervalve, in position, operating side coaxial packaging, are coaxially installed with an oxygen momentum adjustable ring 12 between position, working end and burner intervalve, and the function of this adjustable ring is identical with combustion gas momentum adjustable ring; By the inside and outside position of mobile momentum adjustable ring, the sectional area of gas channel can be changed, thus change its momentum.
Burner intervalve arranges a fuel gas inlet pipe 4 in position, operating side radial communication, the burner intervalve in fuel gas inlet pipe and install a gas diversion block 5 between burner central tube; Burner outer tube arranges an oxygen inlet tube 6 in position, operating side radial communication, burner intervalve in oxygen inlet tube and install an oxygen baffle 7 between burner outer tube, the guide face of these two baffles and air inlet pipe axis are all in 45 ° of angles, change the ratio that this angle can change rotary speed and axial velocity, thus and burner mouth cooperation change flame profile.Baffle adopts version general at present, so there is no the concrete structure providing single-piece.
The position of mobile oxygen momentum adjustable ring and combustion gas momentum adjustable ring, can change the burner mouth momentum of oxygen and combustion gas respectively, thus changes burning velocity and position, flame high-temperature region.
In the present invention, described burner intervalve, burner outer tube and burner central tube are biased setting, namely the axis of oxygen inlet tube and fuel gas inlet pipe and burner central tube is non-90 degree angle, combustion gas and oxygen can be made thus to enter burner inside through biased inlet tube, two kinds of air-flows produce because of biased and rotate in outflow process, improve flow velocity.