CN201030333Y

CN201030333Y - Slurry low-pressure vortex atomization injector

Info

Publication number: CN201030333Y
Application number: CNU200720123645XU
Authority: CN
Inventors: 张力; 蒲舸; 高振宇
Original assignee: Chongqing University
Current assignee: Chongqing University
Priority date: 2007-02-16
Filing date: 2007-02-16
Publication date: 2008-03-05
Anticipated expiration: 2017-02-16

Abstract

A plasm low-pressure swirl atomization nozzle is characterized in that an outlet of a plasm flow equalization board (1) is provided with a gradually extending tangential groove type swirl core (2), and the outer end of the gradually extending tangential groove type swirl core (2) is provided with an outwardly extending atomization piece (3). At least three or more gradually extending tangential grooves (6) are arranged uniformly in the tangent direction of a swirl chamber (5) of the gradually extending tangential groove type swirl core (2). The swirl chamber (5) is communicated with an internal cone-shaped passage (8) on the outwardly extending atomization piece (3), and the internal cone-shaped passage (8) is communicated with a trumpet-shaped outwardly extending passage (10) through atomization holes (9). The large diameter swirl and gradual extending effects of the gradually extending tangential groove type swirl core (2) are utilized to atomize the sprayed liquid medium uniformly and to form a hollow atomization cone to realize the reduction of the flowing resistance of the medium, thereby excellent atomization quality of the plasm under low pressure is achieved.

Description

Slurries low pressure vortex atomizing nozzle

Technical field

The utility model belongs to a kind of jet atomization device, particularly relates to a kind ofly can making the good nozzle of liquid-solid two-phase slurry spraying.

Background technology

Atomized water nozzle of the prior art, the overwhelming majority all designs according to the mechanical atomization principle, as the disclosed atomizer of Chinese patent, the patent No.: 92230052.6, binary channels inward turning combined nozzle, the patent No. 94214422.8 etc.Though they have obtained extensive use, in use also have the following disadvantages:

1) the required pressure reduction of atomizing big (1～2MPa), the atomization quality instability;

2) atomizing particle ejaculations that be in line, speed is higher, and atomized flow is failed the formation state that waves at random, has equally also influenced result of use;

3) nozzle that has is after improving, though atomizing pressure reduction is reduced to some extent, atomizing effect increases, and structure of nozzle is comparatively complicated, manufacturing cost height, working service inconvenience.

Summary of the invention

The purpose of this utility model is a kind of slurries low pressure vortex atomizing nozzle that can make liquid medium uniform atomizings such as lime slurry that provides at the deficiency of above-mentioned technology.

The technical scheme that its technical problem that solves the utility model adopts is: slurries low pressure vortex atomizing nozzle, it by slurries homogenizing plate (1), micro-expanded tangent channel formula eddy flow core (2), outward expand atomizing piece (3), clamping nut (4), spin chamber (5), micro-expanded tangent channel (6), advance slurry channels (7), inner conical passage (8), orifice (9), tubaeform outer expansion passage parts such as (10) and form.It is characterized in that the port of export of slurries homogenizing plate (1) is furnished with a micro-expanded tangent channel formula eddy flow core (2), the outer end of micro-expanded tangent channel formula eddy flow core (2) is furnished with outer expansion atomizing piece (3).Described micro-expanded tangent channel formula eddy flow core (2) is along the even micro-expanded tangent channel of arranging more than at least three or three (6) of tangential direction of its spin chamber (5).Spin chamber (5) communicates with the outer inner conical passage of expanding on the atomizing piece (3) (8), and inner conical passage (8) communicates with tubaeform outer expansion passage (10) by orifice (9).Utilize the major diameter eddy flow and the flaring effect of micro-expanded tangent channel formula eddy flow core (2), make the liquid medium uniform atomizing of injection and form hollow atomizing cone, thereby reach the flow resistance that reduces medium, make the slurries under the low pressure have good atomization quality.

The utility model is compared with existing atomizer, has advantages such as simple in structure, compact, energy-conservation, that the nozzle flow dynamic resistance is little, medium atomization is even.The slurries low pressure vortex atomizing nozzle that the utility model provides can be widely used in the slurry spraying of industries such as environmental protection, medicine, food, chemical industry.

Description of drawings

Fig. 1 is a structure chart of the present utility model.In Fig. 1,1 is the slurries homogenizing plate, and 2 is micro-expanded tangent channel formula eddy flow core, and 3 is outer expansion atomizing piece, and 4 is clamping nut, and 5 is the spin chamber, and 6 is micro-expanded tangent channel, and 7 for advancing slurry channels, and 8 is the inner conical passage, and 9 is orifice, and 10 is tubaeform outer expansion passage.

Fig. 2 is micro-expanded tangent channel formula rotation cored structure figure., 6 is micro-expanded tangent channel.

Fig. 3 is the cutaway view of spin chamber, and 5 is the spin chamber

Fig. 4 is outer expansion atomizing piece structure chart.In Fig. 3,8 is the inner conical passage, and 9 is orifice, and 10 is tubaeform outer expansion passage.

The specific embodiment

Below in conjunction with accompanying drawing the technical solution of the utility model is further described:

The slurries low pressure vortex atomizing nozzle that the utility model provides, utilize the flaring eddy flow of the micro-expanded tangent channel formula eddy flow core (2) in the nozzle and the acting in conjunction of expanding atomizing piece (3) outward, be reduced in 0.5～1MPa scope with the slurry medium atomizing and with pressure reduction, make the atomizer (atomizing) cone body form a hollow jet, the atomized flow of nozzle has bigger atomizing angle and is the rotational flow state, thereby further improves the atomization quality of slurries.

Liquid medium from slurries homogenizing plate (1) through advancing slurry channels (7) and enter micro-expanded tangent channel (6) and tangentially entering centrifugal cyclone chamber (5) and be rotated atomizing.Its rotary-atomizing stream is because of the effect of micro-expanded tangent channel (6), in inner conical passage (8), form a conulite, fluid is expanded passage (9) and is atomizing angle jetting nozzle greater than 70 ° outside tubaeform, under pressure reduction less than 1MPa, rotary-atomizing stream is flow regime at random, thereby can guarantee the high-quality atomizing effect of slurries low pressure vortex atomizing nozzle.

According to the slurries low pressure vortex atomizing nozzle structural principle that the utility model provides, this programme also can be designed the slurries low pressure vortex atomizing nozzle of the micro-expanded tangent channel eddy flow core that has more than three or three.For ease of its structural principle is described, the accompanying drawing 2 that this specification provides has only represented to have the slurries low pressure vortex atomizing nozzle of four micro-expanded tangent channel formula eddy flow cores.

Claims

1. slurries low pressure vortex atomizing nozzle, it by slurries homogenizing plate (1), micro-expanded tangent channel formula eddy flow core (2), outward expand atomizing piece (3), clamping nut (4), spin chamber (5), micro-expanded tangent channel (6), advance slurry channels (7), inner conical passage (8), orifice (9), tubaeform outer expansion passage (10) and constitute, it is characterized in that, the port of export of described slurries homogenizing plate (1) is furnished with a micro-expanded tangent channel formula eddy flow core (2), and the outer end of micro-expanded tangent channel formula eddy flow core (2) is furnished with outer expansion atomizing piece (3); Described micro-expanded tangent channel formula eddy flow core (2) is along the even micro-expanded tangent channel of arranging more than at least three or three (6) of tangential direction of its spin chamber (5), spin chamber (5) communicates with the outer inner conical passage of expanding on the atomizing piece (3) (8), and inner conical passage (8) communicates with tubaeform outer expansion passage (10) by orifice (9).