Description
The product has many advantages such as
high oil removal efficiency, low pressure drop, large elasticity of
operation, strong adaptability etc., able to solve electrical
desalting device running oil problem of inferior crude oil
processing; Realizing closed online degreasing process and oil
in-place recycling under the condition of no increase of chemicals
and power consumption; Reduces the loss of processing, sewage
treatment cost and avoid secondary pollution, solve the problem of
oil pollution and improve environmental quality.
Technical
route
Liquid mixture with certain pressure tube into the guide, flow into
guide apparatus through the inlet pipe, the guide apparatus vane
changes the axial flow into rotation flow, produce strong liquid
rotation in the swirl chamber, because of the density difference of
oil-water mixture dispersed phase and continuous phase, lead to two
different phase liquid obtained different centrifugal force, so as
to realize the purpose of two-phase separation. According to
different processing, separation units can be combined into
multiple tube joint forming device so as to adapt to different
working conditions and operation requirements, which can also be
used by multilevel series.
LHS type cyclone separator (multi-tube structure) actual capacity
can be designed according to the actual production, the pressure
drop consumption: 0.*5 ~ 0.*5 MPa, the separation efficiency can
reach > *3 ~ *9%.
Industrial
design
Electric desalting oily water flow into the primary cyclone (DT -
LHS - 1), purify sewage flow out from the first underflow orifice
into the secondary cyclone (DT - LHS - 2) for hydrocyclone
separation, purification of secondary underflow orifice directly
discharged into oily sewage pipe system; The overflow recycling
crude of first, secondary cyclone flow into the buffer tank V1
respectively by the lift pump pressurized to electric desalting
tank for dehydration recycle directly, lift pump CP throughput
controlled by the buffer tank liquid level signal through frequency
conversion speed governor. The skid-mounted system mainly includes
two stage cyclone separation unit, dosing unit, control unit,
two-stage cyclone separation unit can be flexible determined based
on the liquid separation series. Compared with the existing thermal
chemical demulsification and gravity settling, new developed
process has the advantages such as good dewatering effect, saving
energy and reducing consumption, compact structure, reliable
operation, high automation degree, etc, can achieve full closed,
fully automated extraction liquid dehydration.
Key
technology
(1) Minimizing pressure drop to prevent the electric desalting tank
operation affected by system pressure-out.
(2) Water cut oil concentration range is wide from hundreds to
thousands or even tens of thousands of PPM.
(3) Separator need to achieve wide flow operation for big changes
of electric desalting cutting water.
(4) Processed oil can be recycle and innocent treatment, avoid
secondary pollution to the environment.
Technical
parameters
|
Item |
Performance
indicator |
|
Medium |
Designation |
Oily water |
|
Density |
kg/m3 |
Sewage:1.0 |
Crude
oil:0.*2~0.*5 |
|
Viscosity |
mPa.s |
~1.0 |
|
Design
temperature |
ºC |
*0~*0 |
|
Inflow water |
Flow |
m3/h |
Desige *0(Operation
*8~*0) |
|
Pressure |
MPa |
0.6~1.2 |
|
Oil content |
mg/L |
Normally ***0 |
|
Spin out water |
Drainage
pressure |
Mpa |
>0.5 |
|
Oil
concentration |
mg/l |
 |
|
Recovered oil |
Oil discharge
pressure |
Mpa |
2.2 |
Product advantage
Simple structure, compact device, economic space occupation;
Low cost (including manufacturing, maintenance, energy consumption
costs);
Easy installation(liquid-liquid hydrocyclone can be arbitrary
installation);
Simple operation, reliable operation, convenient maintenance;
High separation efficiency and automation (with continuous
operation);
Good adaptability, wide production and adjusting range.
Patent
application
Crude oil electric desalting device combination of oily water
cutting processing method and device ZL***********3.6;
Skid-mounted vortex oil-water separation device
ZL***********4.3;
Continuous rotary jet type static mixer ZL***********6.5;
The guide vane cyclone tube with slit structure
ZL***********1.4.
