Push-Pull
Local Ventilation System
|
|
 |
"KOKEN
LAMINAR"
|
|
Push-Pull
Local Ventilation System makes workplace more comfortable.
Harmful substances arose from production area are floating in the mid
air with various kinds of shapes and generated form (such as gases, particulates
and fumes).
The magical air current, Laminar Air Flow, generated from "KOKEN LAMINAR" captures
such inhalant particulates, organic solvent vapor, chemical gases and fumes,
and then it exhausts them out to make the work place comfortable. |
 |
The
Magical Air Current is "Laminar Air Flow"
The air current originated from push hood moves towards
the pull hood with keeping the same velocity as well as the same
air current vector. Then, an invisible air layers are formed in
the midst of the open air. However, with such a very low air current
flow velocity as 0.2-1.0m/s, you can not feel it even you are in
the center of it.
Moreover, Laminar Air has a character of “flow recovery”. That means
even the flow is disturbed by some obstacle in its path, the air flow returns
into the original shape once passed through it.
Do you believe such air current flow really exists? Yes, here is! The biggest
feature of "KOKEN LAMINAR" is this magical air current. It is very
difficult to create uniformed laminar air flow having same vector in the air.
KOKEN made it possible with our original Push Hood and Pull Hood technology as
well as our air current engineering technology. |
 |
Push
Hood PS-21H
|
|
Push Hood
High laminarity has an important role to generate laminar air. The
quality of laminar air depends on the Push Hood. High performance
of Push Hood is deadly needed for high quality of laminar air. Otherwise,
it will be only a fan, which even scatters harmful substances. |
Air
Current flow velocity distribution chart
Each velocity level is highlighted by colors. |
 |
Data shown are obtained at
10cm in front of the Push Hood.
Velocity is maintained
± 20%.
|
Data
shown are obtained 1.5m away form Pull Hood.
Original air current distribution is still well maintained.
|
Choice from 3 types of air current flow patterns
The best air current flow suitable for each
application such as Fume, Particulate and Gas can be
chosen from oblique, descent and horizontal flow patterns. |
|
|
Features of KOKEN LAMINAR
Free from poor
weld result
Thanks to its very low velocity and uniformed laminar
air current flow, defect free arc welding results ("shield
gas" can't be effected) can be expected.
Ventilation without spoiling workability
is available.
Ventilated area can be configured without
fencing off spacious area.
No masks are required within LAMINAR
AIR field. (In Japan)
In Japan, Push-Pull Local Ventilation
System has been approved as the same category
with conventional local ventilation system
by Government regulations. This enables factory
workers to take off their masks.
Energy Saving
Push-Pull Local Ventilation System runs
with very little amount of air current flow. This
makes the whole system compact and can minimize
load to air-conditionings. Eventually, running
cost will be lower than that of conventional local
ventilation systems.
Versatile Ventilation
Compared to the conventional local
ventilation system, KOKEN LAMINAR is able to
ventilate spacious workplace with stable and
wide air flow. Therefore, it is also recommended
for the workplaces with larger source of fumes. |
|
|
