CN202224255U

CN202224255U - Symmetrical double-rotation type whirlcone

Info

Publication number: CN202224255U
Application number: CN2011203416716U
Authority: CN
Inventors: 高兆栋; 李月; 马汝建
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2012-05-23
Anticipated expiration: 2021-09-13

Abstract

The utility model discloses a symmetrical double-rotation type whirlcone, and belongs to separating and classifying equipment. The symmetrical double-rotation type whirlcone comprises two single-rotation type whirlcones; the two single-rotation type whirlcones have a common inlet (6) and are symmetrical relative to the inlet (6); each single-rotation type whirlcone comprises a cylinder-shaped rotational flow cylinder (3) and a taper cylinder (4); the cylinder-shaped rotational flow cylinder (3) is provided with the inlet (6); the taper cylinder (4) is arranged at the lower part of the rotational flow cylinder (3) and is provided with an underflow opening (5); and an overflow pipe (2) communicated with the outside is arranged in the rotational flow cylinder (3). The walls of the two single-rotation type whirlcones are tangent to each other. The symmetrical double-rotation type whirlcone has the advantages that the structure is simple, the design and the conception are novel, the adverse effects on the balance of equipment caused by a side acting force produced by the single rotation are effectively solved, and the service life of the equipment is prolonged.

Description

The rotating cyclone of symmetric double

Technical field

The utility model relates to a kind of separation classifying equipoment, particularly a kind of cyclone.

Background technology

Cyclone is a kind of common separation classifying equipoment, and its operation principle is centrifugal sedimentation.After two phase fluid-mixings to be separated get in the cyclone with certain pressure from cyclone periphery tangential, in the whirl cylinder chamber, produce the high speed rotational flow field.Because heavy phase (component that mass density is big) is with light to exist mass density between (component that mass density is little) mutually poor; Its centrifugal force that receives, entad buoyancy, fluid drag force etc. vary in size; Receive the centrifugal sedimentation effect; Most of heavy phase material is discharged through the cyclone underflow opening, and most of light phase material is discharged by overflow pipe, thereby reaches the purpose of separating classification.

At present, the cyclone of prior art all is single rotation direction formula, and fluid-mixing to be separated can produce side action power when in cyclone, rotating at a high speed, and this side action power is unfavorable for balance of plant, influence service life of equipment.

The utility model content

To the above-mentioned defective that exists in the prior art, the utility model provides a kind of can effectively guarantee the cyclone balance, improve the novel cyclone in its service life.

The utility model is realized through following technical scheme: the rotating cyclone of a kind of symmetric double; Its special character is: comprise that two have common inlet and with respect to this rotating cyclone of symmetrically arranged list that enters the mouth; The rotating cyclone of described list comprises the columnar whirl cylinder that is provided with inlet and is located at the awl tube that has underflow opening of said whirl cylinder bottom; Be provided with the overflow pipe with exterior in the said whirl cylinder, the tangent setting of the barrel of the whirl cylinder of described two rotating cyclones of list.

The utility model is through having the rotating cyclone of list of common inlet to be symmetrical set with respect to inlet with two, makes the fluid-mixing to be separated that gets into cyclone with certain pressure in two whirl cylinders of cyclone, form high speed rotational flow field symmetrical, in the opposite direction.The component that mass density is big in the fluid-mixing moves downward under the effect of eddy flow field and radially outwards motion simultaneously vertically, when arriving conical cylinder section, moves downward along wall, and is discharged by underflow opening; The little component of mass density to the central axial direction motion, and forms the inside vortex that moves upward in axis centre under the effect of eddy flow field, discharge through overflow pipe then, has so just reached two purposes that are separated.Because the eddy flow in two whirl cylinders is in the opposite direction, so the side action power that is produced by the fluid-mixing rotation of both sides can cancel each other, and eliminated the side action power that produces owing to the single rotation direction adverse effect that balance produced to cyclone.

For the porch fluoran stream surface is reduced, reducing the inlet influence on flow field, the middle circle of the barrel of the whirl cylinder of described two rotating cyclones of list is tangent.So both having guaranteed has the material of a wall thickness to be connected between two whirl cylinders of entrance with the lower part, and assurance equipment uses reliable, has reduced fluoran stream surface again to the inlet influence on flow field.

In order further to reduce fluoran stream surface to the inlet influence on flow field; The utility model is with being designed to horn structure with the relative fluoran stream surface of inlet in the cyclone, and this horn structure is to make the structure that tangent line forms by the points of tangency of the middle circle of two whirl cylinder barrels to the madial wall of whirl cylinder.This kind design makes fluoran stream surface become the wedge angle guide face, can make fluoran stream surface drop to minimum to the inlet influence on flow field.

In order to increase the fluid pressure of the component that density is little in the fluid-mixing that overflow pipe flows out, the utility model is provided with diffuser pipe in the exit of said overflow pipe.The component that density is little in the fluid-mixing like this is when overflow pipe flows through diffuser pipe, and in the pressure raising of diffuser pipe outlet fluid, the speed of fluid reduces, and the enthalpy that the kinetic energy of fluid changes fluid into increases.

The beneficial effect of the utility model is: the utility model is simple in structure; Design concept is novel; It makes the fluid-mixing to be separated that gets into cyclone in two whirl cylinders of cyclone, form symmetrical bidirectional rotational flow through having the rotating cyclone of list of common inlet to be symmetrical set with respect to inlet with two, and two interior side action power that eddy flow produced of whirl cylinder are cancelled out each other; The balance that helps equipment, the service life of having improved equipment.The utility model can be used for having the separation of two-phase or multiphase mixtures such as the solution-air, solid-liquid, liquid-liquid of certain density contrast.

Description of drawings

Fig. 1 is the structural representation (half section) of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is that the A-A among Fig. 1 analyses and observe enlarged diagram;

Fig. 4 is the enlarged diagram of porch fluoran stream surface;

Among the figure, 1, diffuser pipe, 2, overflow pipe, 3, whirl cylinder, 4, the awl tube, 5, underflow opening, 6, inlet, 7, fluoran stream surface.

The specific embodiment

The embodiment of detail description also combines accompanying drawing that the utility model is further described:

Shown in accompanying drawing; The rotating cyclone of a kind of symmetric double; It comprises that two have common inlet 6 and with respect to this rotating cyclone of 6 symmetrically arranged lists that enters the mouth; The rotating cyclone of described list comprises columnar whirl cylinder 3 and is located at the awl tube 4 of whirl cylinder 3 bottoms, and awl tube 4 bottoms are provided with underflow opening 5, is provided with the overflow pipe 2 with exterior along its central axis in the whirl cylinder 3.The tangent setting of barrel of the whirl cylinder 3 of two rotating cyclones of list also is combined as a whole.Inlet 6 is arranged on two whirl cylinders 3 place that combines.

In order to reduce 7 pairs of inlets of porch fluoran stream surface influence on flow field; The tangent design of middle circle of the barrel of the whirl cylinder 3 of two rotating cyclones of list of present embodiment employing; So both having guaranteed has the material of a wall thickness to be connected between two whirl cylinders of entrance with the lower part; Assurance equipment uses reliable, and the porch fluoran stream surface is reduced, and reduces the purpose of fluoran stream surface to the inlet influence on flow field to reach.In order to make 7 pairs of inlets of fluoran stream surface influence on flow field drop to minimum; Present embodiment is designed to horn structure with fluoran stream surface 7; This horn structure is to make the structure that tangent line forms by the points of tangency of the middle circle of two whirl cylinders, 3 barrels to the madial wall of whirl cylinder 3, makes fluoran stream surface become the wedge angle guide face.

In order to increase the fluid pressure through the little component of the density of overflow pipe outflow, the utility model is provided with diffuser pipe 1 in the exit of said overflow pipe 2.

The concrete course of work of the utility model is: fluid-mixing to be separated with certain pressure from entering the mouth 6 when getting into cyclones; Fluid-mixing gets in the rotating cyclone of list of two symmetries along its peripheral tangential after, generation high speed rotational flow field in the opposite direction two whirl cylinders 3 in.The component that mass density is big in the fluid-mixing is done downward vertically motion and radially outside motion simultaneously under the effect of eddy flow field, when arriving 4 sections in awl tube, move downward along the awl barrel, and by underflow opening 5 discharges, so just formed outer swirling flow field; The component that mass density is little is moved to central axial direction, and forms the inside vortex that moves upward in axis centre, discharge from the diffusion mouth of pipe through the pressurization of diffuser pipe 1 through overflow pipe 2 then, has so just reached two purposes that are separated.

Other parts of present embodiment adopt prior art, repeat no more at this.

Claims

1. rotating cyclone of symmetric double; It is characterized in that: comprise that two have common inlet (6) and with respect to the rotating cyclone of the symmetrically arranged list of this inlet (6); The rotating cyclone of described list comprises the columnar whirl cylinder (3) that is provided with inlet (6) and is located at the awl tube (4) that has underflow opening (5) of said whirl cylinder (3) bottom; Be provided with the overflow pipe (2) with exterior in the said whirl cylinder (3), the tangent setting of barrel of the whirl cylinder of described two rotating cyclones of list (3).

2. the rotating cyclone of symmetric double according to claim 1 is characterized in that: the middle circle of the barrel of the whirl cylinder of described two rotating cyclones of list (3) is tangent.

3. the rotating cyclone of symmetric double according to claim 2; It is characterized in that: fluoran stream surface (7) relative with inlet (6) in the cyclone is horn structure, and this horn structure is to make the structure that tangent line forms by the points of tangency of the middle circle of two whirl cylinders (3) barrel to the madial wall of whirl cylinder (3).

4. according to claim 1 or the rotating cyclone of 2 or 3 described symmetric double, it is characterized in that: the exit of said overflow pipe (2) is provided with diffuser pipe (1).