一、introduce
A lot of for instance,
petroleum serious residual oil , chemical
medicines , medicine , wholefood , health
products , fatty acid ,etc., temperature
sensing often, glue a stagnat one and or
have high supplies of boiling point. Is
it spin off from their other composition
these supplies to want , and keep the quality
of the result, can only rectify under low
boiling temperature or even less than the
temperature of seething with excitement
, and can only reduce the hot decomposition
or the function of getting together to minimumly
during very short time , in order to dispel
the destruction to products 。
As operate vacuity
at the 500Pa about , can evaporimeter lower
membrane go on of the evaporimeter in Shave
the membrane. However, it is must in operating
under high vacuum in if distillation (for
instance, pressure at 0. Between 001-100Pa)
have a problem. Must select for use steam
is it exceed through heat surface and condensation
pigeonhole the bad evaporimeter between
the surface to pigeonhole in Product, therefore
the evaporimeter with external condenser
is excluded from distillation course of
the high vacuum range.
Is it leave only
to compare, SPE Type short distance evaporimeter
suited to the application occasion very
much, condenser make in evaporimeter, lie
in and heat on the opposite side where the
distillation takes place directly. So, the
short distance distiller is a item of newer
applying to production for industrialization
extensively yet, can solve a large amount
of routine distillation new Type technology
can solve separate technology. 
二、Work introduce
The difference
of pressing boiling membrane and condensation
is the driving force that the steam flows
into, will cause the flow of the steam
to the small pressure when falling. Is
it require in surface of seething with
excitement and have short distance very
the condensation to operate under 1mbar,
the distiller made on the basis of this
principle is called the short distance
distiller . Short range distiller (molecular distillation)have one built-in condenser
in heat opposite the Taxi, enable operating
the pressure and drop to 0. Under 001mbar.
Its lower boiling temperature, is very
suitable for temperature sensing , high
boiling point thing .
Form basically:
There is outside that heat cylinder Type
Axle which inserts set , the rotor and
built-in condenser ; Accurate to is it
blow diaphragm and is it splash the device
to defend to equip with at mounting bracket
of rotor. The built-in condenser lies
in the centre of the evaporimeter , the
rotor is rotated between cylinder Type
Axle and condenser .
The distillation course is: Supplies join
from top of evaporimeter, by material
liquid cloth even in succession their
to heat surface person who is distribute
of rotor, shaved the diaphragm and shaved
the material liquid into the liquid film
with extremely thin taking the form of
turbulance one storey immediately , and
move forward downwards with the spiral
form . Among course this, from heat light
member that ease produce on the surface,
and nearly without is it get built-in
condenser condensation succeed liquid
to collide through short route, and is
in charge of the condensation and flow,
through lying in producing material and
is in charge of discharging of the evaporimeter
bottom; Incomplete liquid namely serious
member round passway under heating district
collect, and then through to produce material
flow out of in charge ofing side.
|
