1. Introduction to top
The APSON Turbo Cleaner 2002 is a pneumatically controllable
rinsing block for aggressive lacquers and solvents. It is an
optionally available cleaner block for the modular APSON Lacquer
Changer 2000 M and is particularly suitable for automatic painting
systems with often changing lacquers. It serves for rinsing the
lacquer change-over switch, the hoses and rotation atomizers or spray
guns.
The APSON Turbo Cleaner 2002 is an advancement of the APSON
Pulse Cleaner 2000 and APSON Turbo-Pulse Cleaner 2000. It differs from
the aforementioned cleaners by more flexible rinsing sequence due to
non-coupled function of the valves. In all other respects the cleaners
mentioned are exchangeable. The APSON Turbo Cleaner 2002 is optimized
for economical solvent consumption with high rinsing quality. It
avoids reliably a pollution of the newly connected lacquer during the
painting process and ensures thus a perfect lacquer change.
2. Structure and Function to top
The APSON Turbo Cleaner 2002 consists of a prism formed housing
with an output and one input each for solvent LO and compressed
air LU. The output side of the Turbo Cleaner 2002 forms a pressure
tight interface to the valve blocks of the lacquer changer
switch.
A pneumatically controllable valve is assigned to each input.
Due to the special formation of the eddy space and the V-shaped
arrangement of the valves, a highly turbulent mixture of air and
solvent develops in the lacquer change-over switch during the rinsing
cycle.
Due to the special construction the APSON Turbo Cleaner 2002
enables two basic application cases:
Case 1: Application with
alternating control of the valves for air resp. solvent. In this case
both inputs are to be equipped with checkvalves, in order to prevent
penetration of the different medium during possible overlap of the
open-times (both valves at the same time openly) in each case.
During the painting process solvent and compressed air pend
permanently at the turbo cleaner. If a rinsing cycle is to be
initiated, then with still closed compressed air valve LUF first the
solvent valve LOF is controlled to open. Briefly afterwards, the
compressed air valve is controlled to open for the entire duration of
the rinsing cycle. With opened compressed air valve the flow of the
solvent is then periodically interrupted in short time intervals and
released again. At the end of the rinsing cycle the air flow as well
as the solvent flow are stopped.
Due to this sequence an alternating flow
from compressed air resp. solvent develops, which rinses reliably the
lacquer change-over switch downstream the hoses and other spray
devices. The duration of the rinsing cycle as well as the switching
sequences of the two valves depend on the conditions of the painting
process and has to be controlled by means of a programmable logic
controller. The more briefly the switching on impulses of the solvent
valve (preferably smaller than 1 second), the better the rinsing
quality.
Case 2: Application with
permanent control for air and pulsed control of the solvent. For safe
functioning of the Turbo Cleaner 2002 the pressure at the solvent
input must be higher approx. 1 to 1.5 bar than the pressure at the
compressed air input. Therefore only the union fitting for the
compressed air input contains a checkvalve.
During the painting process solvent and compressed air pend
permanently at the Turbo Cleaner 2002. If a rinsing cycle is to be
initiated, then with still closed compressed air valve LUF first the
solvent valve LOF is controlled to open. Briefly afterwards, the
compressed air valve is controlled to open for the entire duration of
the rinsing cycle. With opened compressed air valve the flow of the
solvent is then interrupted in short time intervals and released
again. At the end of the rinsing cycle the air flow as well as the
solvent flow are stopped.
Due to this sequence a pulsating flow from
air-sputtered solvent develops, wich rinses reliably the lacquer
change-over switch downstream the hoses and other spray devices. The
duration of the rinsing cycle as well as the switching frequency of
the solvent valve depend on the conditions of the painting process and
has to be controlled by means of a programmable logic controller. The
more briefly the switching-on impulses of the solvent valve
(preferably smaller than 1 second), the better the rinsing
quality.
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Small solvent consumption.
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Environmental careful short rinsing cycle due to high
throughput.
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Very good rinsing barness due to deathroom-minimized valve
blocks.
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The valves are compatible with the valves of the lacquer
change-over switch blocks.
-
Fast valve exchange due to screwable valve technique.
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Pro-active maintenance possible due to leakage display of
the valves.
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Visible switching status of the valves.
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Small, compact form.
4. Technical Data to top
Denomination: |
APSON Turbo Cleaner 2002 |
Media: |
Lacquers, solvents, a.o. |
Compressed air pressure: |
6 to 12 bar |
Solvent pressure: |
(approx. 1 to 1.5 bar greater than
compressed air)
|
Valve assembly: |
two 2/2-ways valves, see Ordering Data |
Checkvalve/s: |
1 resp. 2 checkvalve/s, see above |
Valve switching pressure: |
6 to 8 bar, measured at the valve |
Housing material: |
Inoxidable steel, see Ordering Data |
Sealing material: |
Viton™, or after customer's request |
Control air link: |
for hose, d = 2.7 mm, D = 4 mm |
Compressed air input: |
for hose, d = 8 mm, D = 10 mm |
Solvent input: |
for hose, d = 6 mm, D = 8 mm |
Dimensions, block: |
length 70 mm, depth 42 mm, height 50 mm |
Dimensions, complete: |
length 70 mm, depht 42 mm, height 87 mm resp. 110 mm |
Mass, block: |
approx. 700 g |
Mass, complete: |
approx. 800 g |
5. Ordering Data to top
Denomination |
Quantity |
Part-Nr. |
APSON Turbo Cleaner 2002, complete |
1 |
070-A004 |
APSON 2/2-Ways Valve 2000 |
2 |
060-A008 |
APSON Checkvalve 2000 |
1 bzw. 2 |
100-A001 |
Options:
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Housing from aluminium, anodized.
-
Sealing material, after customer's request.
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Air/solvent links, after customer's request.