CN101116798A

CN101116798A - Fluid mixer and the fluid mixing method thereof

Info

Publication number: CN101116798A
Application number: CNA2007100440976A
Authority: CN
Inventors: 周兴贵; 范志伟; 钱刚
Original assignee: East China University of Science and Technology
Current assignee: East China University of Science and Technology
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-02-06
Anticipated expiration: 2027-07-20
Also published as: CN100493690C

Abstract

The present invention relates to a fluid mixer, which comprises a shell with a fluid inlet and outlet. The invention is characterized in that the shell is provided inside with an upper cover board and a lower cover board, at least three deflecting boards and two isolating plate are arranged between the upper cover board and the lower cover board, an intercrossed closelylaminated arrangement is adopted for the deflecting boards and the isolating plates orderly; the deflecting board is provided with a forficate fluid channel, the isolating plate is provided with a through hole communicated with the fluid channel; two or more than two sorts of fluid are respectively shunted and branched through the forficate fluid channels on the deflecting board, and are sprayed out through the through hole on the isolating plate to an impinging stream and a impinging mix oppositely; the present invention has the advantages that the mixing is uniform with favorable effect, saved energy consumption and small amount of staying liquid, the present invention is not only applicable to most of the chemical industry unit operation concerning fluid mixing process, but also applicable to the production processes such as food stuff, medicine and so forth where fluid mixing operation is necessary.

Description

Flow mixer and fluid mixing method thereof

Technical field

The present invention relates to a kind of flow mixer and fluid mixing method thereof that multiple fluid is mixed mutually that be used for.

Background technology

In chemical process, mixing is a kind of very important unit operations.For liquid-liquid, solution-airs etc. are the mixing or the fast reaction of two or more materials (comprising gas or liquid) arbitrarily, and relating to the chemical engineering unit operation processes such as extraction that fluid mixes, the quality of mixing of materials effect can produce significant effects to production efficiency and product quality.

Generally, be blended in the stirred tank and carry out, by stirring the mixing that realizes several materials.But the energy that this mode that mixes generally need consume is more, mixes time-consumingly, and owing to there is back-mixing, also causes the pollution of mixture easily.

Summary of the invention

The objective of the invention is: strengthen mass transport process relevant in the chemical engineering unit operation with mixing, a kind of simple in structure, structure of being easy to process the flow mixer of combination and regular maintenance is disclosed, and make fluid split into the little fluid of multiply equably, and clash into mutually, thereby reach quick, the efficient method of mixing of fluid.

The technical scheme that adopts is in order to achieve the above object:

A kind of flow mixer, comprise the shell that has fluid inlet and outlet, it is characterized in that: shell is built-in with upper cover plate and lower cover, be equipped with at least three deflectors and at least two division boards between described upper cover plate and the lower cover, be that deflector-division board-deflector-division board-deflector intersects mutually and the mode of fitting tightly is arranged, be equipped with the fluid passage of bifurcated on the described deflector, be equipped with the through hole that communicates with described fluid passage on the division board.

The fluid passage is bifurcated or four bifurcateds on the described deflector, and width is less than 20mm.The diameter of through hole is less than 5mm on the described division board.

Described flow mixer, fluid mixing method is: divide stream thinning with two kinds of fluids by fluid passage bifurcated on the deflector, again through through hole on the division board form two strands in opposite directions percussion flow clash into mixing mutually, mixed material is derived from deflector at last.

For the mixing of two or more fluids, can realize even mixing by the blender serial or parallel connection.The for example mixing of three kinds of fluid A, B and C, can earlier fluid A and fluid B be mixed into AB by a blender, then AB is imported an inlet of next stage blender, simultaneously fluid C is imported another inlet of next stage blender, thereby reach purpose three kinds of mixing of materials.Mixing as for four kinds of fluid A, B, C, D, can earlier fluid A and fluid B be mixed into AB by a blender, simultaneously fluid C and fluid D are mixed into CD by another blender, then AB is imported an inlet of next stage blender, CD is imported another inlet of next stage blender, obtain compound ABCD at last.For the bigger situation for the treatment of capacity, can reach by the mode of blender in parallel.Like this can be so that single blender can be in the optimal operations state all the time.

Good effect of the present invention is: flow mixer of the present invention can mix any fluid, comprise gas or liquid, mix effective, the saving energy, dispersed phase holdup is few, when production capacity increases substantially, can reduce production costs effectively, improve product yield and quality, reduce waste discharge.Mix for the bigger fluid of danger, have special advantage,, realize mixing evenly and rapidly because the distinctive micro-structure size of blender can make melting concn be within the blast critical limit as the mixing of flammable explosive gas and oxygen.Described blender can be used to great majority and relate to the chemical engineering unit operation that fluid mixes, the chemical unit reaction of producing by fine-chemical intermediate and large Organic Chemicals of solution-air, liquid-liquid fluid reaction comprising extraction and nitration reaction, oxidation, chlorination, carbonylation, alkoxylate, esterification, carboxylation, saponification etc., also suitable any as food, need the occasion of fluid married operation in the production processes such as medicine.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 flow mixer internal structure schematic diagram;

Fig. 2 deflector structure schematic diagram;

Fig. 3 partition plate structure schematic diagram;

Another form deflector structure schematic diagram of Fig. 4;

Another form partition plate structure schematic diagram of Fig. 5;

Another structural representation of Fig. 6 flow mixer.

Among the figure, the 1-deflector; The 2-fluid passage; The 3-division board; The 4-through hole; 5-upper cover plate: 6-lower cover.

The specific embodiment

By Fig. 1～Fig. 4 as seen, a kind of flow mixer, comprise the shell that has fluid inlet and outlet, it is characterized in that shell is built-in with upper cover plate 5 and lower cover 6, be equipped with at least three deflectors 1 and at least two division boards 3 between described upper cover plate 5 and the lower cover 6, be that deflector 1.1-division board 3.1-deflector 1.2-division board 3.2-deflector 1.3 intersects mutually and the mode of fitting tightly is arranged, be equipped with the fluid passage 2 of bifurcated on the described deflector 1, be equipped with the through hole 4 that communicates with described fluid passage 2 on the division board 3.

Fluid passage 2 on the described deflector 1 is bifurcated or four bifurcateds, and width is 1～20mm.The diameter of through hole 4 is less than 5mm on the described division board 3.

Fig. 1 and Fig. 6 show two kinds of described flow mixer internal structures respectively, fluid mixing method is as seen from the figure: fluid A and fluid B are pumped into from the gateway of deflector 1.1 and deflector 1.3 respectively, fluid passage 2 shuntings through deflector 1 upper bifurcation are refined as 16 strands of little fluids, pass through the through hole 4 on division board 3.1 and the division board 3..2 more respectively, form 16 fluid streams A and 16 fluid streams B percussion flows in opposite directions, bump mixes mutually, and fluid-mixing AB derives from the gateway of deflector 1.2 at last.

The physical dimension of through hole 4 on fluid passage 2 and the division board 3 on the deflector 1,, percussion flow bump mixed effect the best minimum with fluid delivery consumes energy minimum, inner liquid holdup is target.

Be to be understood that, under the total conceptual framework of the present invention, the importing deflector 1.1 of fluid A and the importing deflector 1.3 of fluid B, and the internal structure of the derivation deflector 1.2 of fluid-mixing AB, the physical dimension and the shape that comprise each piece deflector 1 fluid passage 2 can be identical or inequality.On the division board 3 among Fig. 3 (being division board 3.1 and division board 3..2 among Fig. 1) 16 equally distributed holes are arranged, as the jet of fluid A and fluid B.The parameter of through hole 4 on the division board 3 comprises shape and physical dimension, can be identical, and also can be different; The shape that is the hole can be circular, also can be other shapes such as square, polygon, circular; From Fig. 2～Fig. 5 as seen, the shape of deflector 1 and division board 3 can also can be circle for square, and these all should be in protection scope of the present invention.

The shell of blender and inner member can adopt metal or highstrenghtpiston to process, fluid passage on the internal mixer element plate can be adopted such as processing methods such as line cutting or punching presses and be made, and the hole on the division board can adopt the method for boring or impacting to make.

Embodiment 1

Referring to flow mixer internal structure schematic diagram shown in Figure 1, pass through magnetic force driving pump, fluid A and fluid B are pumped into from the introducing port that imports deflector 1.1 and 1.3 respectively, mixed liquor A B derives from deriving deflector 1.2, fluid channel dimensions on the deflector is less than 20mm, through hole 4 is of a size of 5mm on the division board 3.1 and 3.3, fluid A is pumped in the blender according to different flow velocitys with fluid B, porch at fluid B, it is the introducing port of deflector 1.3, detect static pressure with an accurate pressure gauge, thereby judge the power consumption situation of blender, it is as shown in the table to detect data:

Described flow mixer is used to the liquid-liquid extraction operation, and fluid A is that water is made extractant, benzene extraction formic acid from fluid B kerosene (concentration is 1g/L), and when the flow of fluid A water and fluid B kerosene was 120L/h, the cumulative volume mass tranfer coefficient of process was about 14s ^-1, being 10～100 times of traditional extraction equipment and process, extraction efficiency is 75%, and the used processing time is 0.2 second, and the power of system is 0.5W.And be the effect of extracting that reaches same, use traditional equipment and method, need the time to be about 1 hour, the process power consumption also will exceed about 2 to 10 times.

Claims

1. flow mixer, comprise the shell that has fluid inlet and outlet, it is characterized in that: shell is built-in with upper cover plate (5) and lower cover (6), be equipped with at least three deflectors (1) and at least two division boards (3) between described upper cover plate (5) and the lower cover (6), be that deflector (1.1)-division board (3.1)-deflector (1.2)-division board (3.2)-deflector (1.3) intersects mutually and the mode of fitting tightly is arranged, be equipped with the fluid passage (2) of bifurcated on the described deflector (1), be equipped with the through hole (4) that communicates with described fluid passage (2) on the division board (3).

2. according to the described a kind of flow mixer of claim 1, it is characterized in that: described division board (3) is gone up the diameter of through hole (4) less than 5mm.

3. according to the described a kind of flow mixer of claim 1, it is characterized in that: described deflector (1) is gone up fluid passage (2) and is bifurcated or four bifurcateds, and width is less than 20mm.

4. according to the described a kind of flow mixer of claim 1, fluid mixing method is: divide stream thinning by fluid passage (2) bifurcated on deflector (1.1) and the deflector (1.3) respectively with two kinds of fluids, go up through hole (4) ejection from division board (3.1) and division board (3.2) respectively again, form percussion flow in opposite directions and clash into mixing mutually, fluid-mixing is derived from deflector (1.2).

5. according to the fluid mixing method of the described flow mixer of claim 4: it is characterized in that: can realize that fluid mixes more than three kinds or three kinds by the serial or parallel connection flow mixer.