name

High shear homogenizer

High-pressure homogenizer

原料要求

Powdered, block shaped or fruit can be directly added

The material must be melted and mixed into a fluid before being homogenized

Vulnerable consumables

No need to replace parts within two years, no vulnerable parts

Homogenizing valves and seals need to be replaced frequently after two to three months of use

production operation

Flexible, simple, and no need for dedicated personnel to operate

Special personnel are required to operate and adjust

energy consumption

The power consumption is one-third of that of the high-pressure homogenizer

High power consumption and energy waste

Scope of Application

Wide range of applications

Not suitable for high viscosity materials

acidity and alkalinity

Adaptable

Weak adaptability

Homogenization effect

Homogenization fineness can reach below 1 μ m, with good stability

Homogeneous fineness is small, and stability is good. However, the effect is relatively poor in some industries

comprehensive effect

Mixing, sterilization, and homogenization are completed simultaneously

Can only be homogenized separately

Cleaning method

automatic cleaning

Cleaning complexity

compare

High shear homogenizer

High-pressure homogenizer

macro
homogeneous
mechanism

Shear action

This is mainly achieved through the shear of liquid droplets in the gap between the high-speed rotating rotor and stator, as well as the combined effect of the gap and the small hole jet on the rotor stator.

When the liquid flows through the gap under high pressure, the droplets are first extended, and later the vortex effect when passing through the valve causes the extended part to shear and break.

Impact effect

A high-speed rotating droplet is propelled by inertial centrifugal force, resulting in a significant impact force and thus producing an impact effect.

The liquid flow outlet that rushes out at high speed in the gap of the homogenization valve is treated with a retaining ring, resulting in high-speed impact.

Void action

The centrifugal force causes the liquid to have a certain pressure before entering the annular gap, but after entering the annular gap, it becomes a high-speed rotating liquid flow. After the liquid leaves the stator small hole, the pressure rises again, so there is also a certain cavitation effect

The static pressure at the inlet of the liquid flow is very high. When passing through the slit, the static pressure energy is converted into kinetic energy, and the pressure rapidly and significantly decreases, causing cavitation in the slit. After leaving the slit, the pressure rises again, causing cavitation to disappear, thus breaking the droplet

microscopic
homogeneous
mechanism

The flow of droplets during high-speed rotation of a high shear homogenizer is quite complex, mainly controlled by the constantly changing flow velocity acting on the surface of the droplets and the resulting pulsating pressure, resulting in the tension of the split droplets and causing them to rupture.

The energy provided by the high-pressure homogenizer for droplet rupture comes from the static pressure energy carried by the feed liquid at the inlet.