CN2673486Y - Liquid-liquid fast pipeline mixer - Google Patents

Abstract

The utility model relates to a liquid-liquid fast pipeline mixer, comprising the housing (pipeline) of the mixer, a perforated plate and a jet pipe. The liquid-liquid fast pipeline mixer is characterized in that the dash of the jet against the perforated plate can create strong body diffusion and turbulent diffusion in the mixer to achieve the fast mixing between liquid-liquid materials. The utility model has the advantages of simple structure, low production cost, effective mixing, and low energy consumption, being suitable for the fast mixing between medium and low viscosity liquid materials.

Description

Liquid-liquid rapid pipeline blender

Technical field

The utility model relates to a kind of blender that is used to realize rapid mixing between liquid and liquid, particularly a kind of pipe-line mixer that is used to realize rapid mixing between liquid and liquid.

Background technology

In many production divisions such as plumbing, chemical industry, petrochemical industry, medicine, food, often run into the rapid mixing problem between a kind of liquid and another kind of liquid.For example, in water engineering, former water needs to carry out rapid mixing with coagulant before entering sedimentation basin.Usually adopt the static mixer that in pipeline, inserts spiral chip hybrid element at present.When former water and coagulant under certain flow rate during by static mixer, mixing original paper wherein cuts, shunts it, when making current and left-handed, the time and dextrorotation causes radially mixed effect thereby constantly change flow direction.Because the coagulation dosage that adds is seldom, only be about the one thousandth of the pending former water yield, this is a small amount of liquid and the rapid mixing problem between quantity of fluid greatly, acquires a certain degree of difficulty.For both are mixed, need with a plurality of mixing original papers.This had both increased manufacturing expense, had increased energy consumption again.

Summary of the invention

The objective of the invention is, under the situation that improves mixture homogeneity, simplify the blender structure, be convenient to make and install, save manufacturing cost and energy consumption.

The utility model liquid-liquid rapid pipeline blender is made up of blender shell (pipeline), jet pipe and porous plate or many jet pipes and polylith porous plate, and jet pipe is positioned at the porous plate downstream, also can be positioned at the porous plate upstream extremity.In liquid-liquid rapid pipeline blender, second liquid enters blender by the jet pipe that is positioned at pipeline center, form one jet and hit porous plate, along the porous plate radial flow to around, mix with first liquid.First liquid from the upstream forms many little jets through porous plate, mixes rapidly with second liquid, and further mixes in the flow further downstream process.The main diffusion of second liquid is to be realized by the collision jet of directive porous plate, and the effect of entrainmenting of jet, itself and the bump of porous plate and the mutual bump between first liquid and second liquid, produce strong turbulence, very favourable to DIFFUSION IN TURBULENCE, thus can reach good rapid mixing effect.This mixing principle of the present utility model also can be applicable to the mixing between liquid-liquid in tower and the reactor.The flow parameter of liquid and the structural parameters of blender are two key factors that influence mixture homogeneity.The flow parameter of liquid represents with ratio of momentum M, $M=\sqrt{{\mathrm{\ρ}}_2{Q}_2}/\sqrt{{\mathrm{\ρ}}_1{Q}_1},$ ρ in the formula ₁And ρ ₂Be respectively first liquid and second density of liquid, Q ₁And Q ₂It is the flow of first liquid and second liquid.In the M=0.02-1 scope, can realize rapid mixing between liquid-liquid, and can reach preferable mixed effect.The optimization range of flow parameter ratio of momentum is M=0.1-1.The structural parameters of blender comprise: porous plate resistance coefficient ζ=0.5-1000, and its optimization range is: ζ=1.0-200; Jet size and blender diameter ratio d/D=0.005-0.5, its optimization range is; D/D=0.01-0.2; The ratio H/d=0.5-30 of distance H between nozzle exit and the porous plate and jet size d, its optimization range is: H/d=2-17; The ratio S/d=0.5-30 of jet pipe length S and jet size d, its optimization range is: S/d=4-20.Here, jet size and blender diameter all refer to internal diameter.

Description of drawings

Further set forth content of the present utility model below in conjunction with accompanying drawing:

Accompanying drawing 1 and accompanying drawing 2 are liquid-liquid rapid pipeline blender schematic diagrames,

Wherein

1--blender shell (pipeline)

2--second liquid

3--first liquid

The 4--porous plate, itself and blender shell 1 are affixed

The 5--jet pipe

The mixed liquid of 6--

By accompanying drawing as seen, the utility model is simple in structure, and is easily manufactured, can significantly save manufacturing cost and energy consumption, and owing to be skillfully constructed, rational in infrastructure, select suitable flow parameter, can reach good rapid mixing effect.

Symbol description

D-blender diameter

The d-jet size

The H-nozzle exit is from the distance of porous plate

The M-ratio of momentum

Q ₁-the first fluid flow

Q ₂-the second fluid flow

S-jet pipe length

ρ ₁-the first fluid density

ρ ₂-the second fluid density

ζ-porous plate resistance coefficient

Illustrate industrial prospect of the present utility model below in conjunction with embodiment, but these embodiment do not limit protection domain of the present utility model.

Embodiment 1

In pipe-line mixer shown in the accompanying drawing 1, first liquid is water, and second liquid is saturated saline solution, blender diameter D=200 millimeter, d=2 millimeter, porous plate resistance coefficient ζ=16, ratio of momentum M=0.03, H/d=10, S/d=20.Mixed effect is represented with the root-mean-square-deviation of the dense distribution of second liquid on the blender cross section.Second liquid enters blender to be mixed with first liquid, flows to downstream together, and measurement result shows that after 0.6 second, the root-mean-square-deviation of its CONCENTRATION DISTRIBUTION on the blender respective cross-section is 1.6%.

Embodiment 2

In pipe-line mixer shown in the accompanying drawing 1, first liquid is water, and second liquid is saturated saline solution, blender diameter D=100 millimeter, d=1 millimeter, porous plate resistance coefficient ζ=4, ratio of momentum M=0.03, H/d=20, S/d=20.After second liquid enters blender, mix with first liquid, flow to downstream together, measurement result shows that after 0.6 second, the root-mean-square-deviation of its CONCENTRATION DISTRIBUTION on the blender respective cross-section is 11.5%; And after 2 seconds, the root-mean-square-deviation of its CONCENTRATION DISTRIBUTION on the blender respective cross-section is 1.9%.

Embodiment 3

In pipe-line mixer shown in the accompanying drawing 1, first liquid is alpha-Naphthol solution, and second liquid is the sulfanilic acid diazonium salt solution.Pipe-line mixer diameter D=320 millimeter, the d=32 millimeter, porous plate resistance coefficient ζ=150, ratio of momentum M=0.32, H/d=2, S/d=15, mixed effect is represented to cut apart index Xs.Cut apart index Xs more near 0, show that mixed effect is good more.Measurement result Xs=0.02.If adopt the static mixer that flight is housed of same diameter, when the first same liquid and second fluid flow, it cuts apart index Xs=0.09.As seen the mixed effect of the utility model technology is better than prior art, is worthy of popularization.

Claims (3)

1. liquid-liquid rapid pipeline blender is characterized in that being made up of blender shell, one or more porous plate and one or many jet pipes; Its corresponding structure parameter is: the resistance coefficient ξ=0.5-1000 of porous plate, jet size and blender diameter ratio d/D=0.005-0.5, the distance of jet pipe and porous plate and jet size be than H/d=0.5-30, the ratio S/d=0.5-30 of jet pipe length and jet size; Corresponding flow parameter: the ratio of momentum between second liquid and first liquid

$M=\frac{\sqrt{{\mathrm{\ρ}}_2{Q}_2}}{\sqrt{{\mathrm{\ρ}}_1{Q}_1}}=0.02-1.$

2. liquid as claimed in claim 1-liquid rapid pipeline blender, it is characterized in that said structural parameters are: the resistance coefficient ξ=1.0-200 of porous plate, jet size and blender diameter ratio d/D=0.01-0.2, jet pipe and the distance of porous plate and the ratio H/d=2-17 of jet size, the ratio S/d=4-20 of jet pipe length and jet size.

3. as claim 1,2 described liquid-liquid rapid pipeline blender, it is characterized in that said flow parameter is: the ratio of momentum between second liquid and first liquid $M=\frac{\sqrt{{\mathrm{\ρ}}_2{Q}_2}}{\sqrt{{\mathrm{\ρ}}_1{Q}_1}}=0.1-1.$