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TECHNICAL INSTRUCTION – MICRODYN BIO-CEL®
MICRODYN BIO-CEL®
Diffusor Replacement
Introduction
This document is showing the procedure of diffusor replacement. The procedure can be applied for BIO-CEL®
50/52/100/104/208/400/416/L/XL (not for BIO-CEL® L-2/XL-2). The pictures used in this instruction belong to BIO-CEL®416,
the general steps are the same for all above mentioned BIO-CEL modules.
In case of any question which might derive during the mounting procedure, please don´t hesitate to contact us, the contact
information are shown at the end of the document.
For disassembly of the diffuser case from the module frame please refer to the corresponding document on our website
(https://www.microdyn-nadir.com/mbr-bulletins-guides/)
Safety Precautions
Please follow section 1, Safety & Warnings in the latest version of the MICRODYN BIO-CEL MBR Operation and Maintenance
Manual.
Material Required for disassembly & assembly
Please refer to the corresponding scope of supply document ((https://www.microdyn-nadir.com/mbr-bulletins-guides/) for the
part numbers needed for this replacement.
Pos.
Part
1
BIO-CEL
Diffuser Set
®
2
BIO-CEL
®
Diffuser Assembly Tool
3
Set of fork or socket wrenches of different sizes
4
Integrity test kit
FORM NO.: TI-WW024
REVISION: B | DATE: 07/01/2020
Remarks
Set of diffusers + connectors
a
Torque wrench with special wrench socket (must be ordered separately)
Customers scope of supply
Customers scope of supply (optional only)
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Summary of Contents for MANN+HUMMEL MICRODYNNADIR BIO-CEL 50
- Page 1 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® MICRODYN BIO-CEL® Diffusor Replacement Introduction This document is showing the procedure of diffusor replacement. The procedure can be applied for BIO-CEL® 50/52/100/104/208/400/416/L/XL (not for BIO-CEL® L-2/XL-2). The pictures used in this instruction belong to BIO-CEL®416, the general steps are the same for all above mentioned BIO-CEL modules.
- Page 2 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Diffusor Replacement Procedure DISMANTLING OF OLD DIFFUSORS Dismantle the diffusor counterpart plate by loosening the outer screws. Remove the blue caps, they are not needed any more. NOTE Removing the blue caps are only needed if they are still mounted. Put the plate and steel parts aside for later mounting FORM NO.: TI-WW024...
- Page 3 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Turn the frame on the rear end. Disassemble the blind cap with the special socket wrench. If there are round shaped blind caps (older systems) use a pipe wrench to remove it. Remove the double threaded connector with the blind plug from the opposite side of the distributor FORM NO.: TI-WW024...
- Page 4 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Clean the air distributor as good as possible. If sludge is present in the distributor, open the screw on the bottom of ½“ the distributor to flush the sludge out. Once the distributor is clean again, tighten the screw again with 45Nm.
- Page 5 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® MOUNTING OF NEW DIFFUSORS Take the new diffusor tubes and screw the double threaded connector into the diffusor tube till the end. Make sure there is a flat seal mounted on the diffusor tube. flat seal ATTENTION! Please check for any damages on the diffusors before mounting.
- Page 6 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Set the base frame into a position that allows you to mount the diffusors vertically. Mount the diffusor tube into the bore hole from below. Make sure the diffusor Sealing is correctly plugged in the bore hole pressed and the sealing is pressed against the against the...
- Page 7 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Adjust the diffusors in a way, that the perforated areas are on the sides. On top and bottom of the diffusors perforated must not be any perforation. area on top Perforate Perforate area on area on the side the side Not perforated...
- Page 8 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Prepare the steel parts which are needed to mount the plate on the frame (refer to page 2). Take the back plate (without blue caps) and position it in a way that all threaded pins do fit into the bore holes of the plate.
- Page 9 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® Take the steel parts of the back plate. Position the stiffener plate on the frame and put the screws through the two outer bore holes. Place a washer and a nut on each screw and tighten FORM NO.: TI-WW024 REVISION: B | DATE: 07/01/2020...
- Page 10 TECHNICAL INSTRUCTION – MICRODYN BIO-CEL® INTEGRITY TESTING OF DIFFUSOR SYSTEM (OPTIONAL) Prepare a testing adapter which allows you to connect a hose on the flange connection. Apply 55 ± 5 mbar pressurized air and check for any leakages. Use a 20% glycerine-water solution (or equivalent leakage detection spray) to check for any leakages on all connections at the distributor.