jet pulse filter operation and maintenance manual

jet pulse filter operation and maintenance manual
JET PULSE FILTER OPERATION AND
MAINTENANCE MANUAL
Factory :
Edvan Vantilatör Sanayi ve Ticaret Ltd.Şti.
Çıkrıkçı köyü Edremit / BALIKESİR TÜRKİYE
Main Office :
Edpaz Pazarlama Sanayi ve Ticaret Ltd.Şti.
1201/1 Sokak No: 4/4F Temsil Plaza İş Merkezi
35110 Yenişehir / İZMİR TÜRKİYE
Tel
Fax
URL
E-Mail
Tel
Fax
URL
E-Mail
: +90 266 373 18 25
: +90 266 373 16 99
: www.edvan.com.tr
: info@edvan.com.tr
SEPTEMBER / 2004
: +90 232 433 78 33 pbx
: +90 232 433 78 28
: www.edpaz.com
: info@edpaz.com
JET PULSE FILTER OPERATION AND
MAINTENANCE MANUAL
Doc. No: KGY-KL-01
00.
Pub.Date:
INDEX
PART
CHAPTER
PAGE NO
00
Index
2
A
Introduction
3
B
Terms and Definations
4
01
Jet Pulse Filter Parts
5
02
Transportation and Storage
6
03
Operating Jet Pulse Filter
7
04
Maintenance Manual
12
05
Determining the failure
14
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JET PULSE FILTER OPERATION AND
MAINTENANCE MANUAL
Doc. No: KGY-KL-01
A.
Part
A
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Introduction
Ed-Van is working as a manufacturer since 1975.Our research and development
department
follows
the
technological
developments
without
making
any
concessions on our quality.
Our products are quality controlled during manufacturing process and transporting
to keep the problems under control. Operating and maintenance manual includes all
the informations that customers need after having our products. If you need more
informations excluding in this manual please do not hesitate to contact with qualified
Ed-Van personnel.
This manuel will help you to work with our jet pulse filters without any problem.
ED-VAN
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JET PULSE FILTER OPERATION AND
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Doc. No: KGY-KL-01
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TERMS AND DEFINATIONS
Jet Pulse Filter Type
Serial No
Order No/Date
Purchaser
06
01
11
02
03
04
05
05
12
09
10
Filter Parts
01
Filter Head
07
Bunker
02
03
Selenoid Valve
Platform
08
09
Filter Inlet
Helix Screw
04
Housing
10
Air Lock
05
Window
11
Filter Funnel
06
Ladder
12
Filter Fan
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07
08
09
10
B
JET PULSE FILTER OPERATION AND
MAINTENANCE MANUAL
Doc. No: KGY-KL-01
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JET PULSE FILTER PARTS
JET PULSE FILTER
15
14
13
12
FILTER HEAD
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01
JET PULSE FILTER OPERATION AND
MAINTENANCE MANUAL
Doc. No: KGY-KL-01
01
02
03
04
05
06
07
08
09
10
11
Perforated Steel
Upper Part
Chassis
Housing
Bunker
Bag Cages
Dusty Air Inlet
Helix Screw
Clean Air Outlet
Helix Screw Reducer
Air Lock
12
13
14
15
16
17
18
19
20
21
22
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Air Tank
Selenoid Valve
Valve Hose
Air Pipe
Water Collector tank
Air Gauge
U Manometer
Bunker base
Platform
Control box
Explosion Cover
Part
Rev. No. 0
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JET PULSE FILTER OPERATION AND
MAINTENANCE MANUAL
Doc. No: KGY-KL-01
02.
02.1
Part
02
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Pub.Date:
TRANSPORTATION AND STORAGE
Transportation
For transportation separate jet pulse filter to its parts from connection points.
During the transportation of the filters use the eyebolts and hooking holes on the
filter.
WARNING :
Do not hold the filter from the sensitive parts such as covers, platforms,
adapter etc.
02.2
Storage
Failures caused after the vehicle gets in the customers working
area are not in our company’s responsibility.
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OPERATING THE JET PULSE FILTER
Operation
a. Start up the fan no 1, air lock no 3, and helix screw no 2.
b. Start up the electronic box no 5, which will be placed according to the filter
position at the operation point, with 220 V.
c. After the valve (no 9) is opened the pressured air is blown out by the 1” pipe.
The dust placed outside the bags are collected in the bunker. This operation is
done with a time period continuously.
d. Dust collected in the bunker can be taken out by the helix screw no 2 and air lock
no 3.
e. To stop the system turn off the fan first. Do not stop electronic control box no 5,
helix screw no 2 and air lock no 3 for about 15-20 min. to clean filter bag
surfaces.
5
4
1
2
3
10
1- Fan
2- Helix Screw and motor
3- Air lock and motor
4- Filter Bag
5- Electronic control box
6- Water collector
7- Water collector
8- Pressured Collector
9- Selenoid Valve
10- Inlet Damper
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Dusty air enters the system from the lower part of the filter and dusty air moves
through the filter bags. Dust in the air caught by the fitler bags and clean air taken out
from the upper part of the jet pulse filter by filter fan.
According to the dust amount collected on the bags permeability of the bags
decreases. This can be followed by the differantial pressure between dusty and clean
air parts of the filter. If the differantial pressure rises up stop the fan and have bags
cleaned by the pressured air.
Selenoid valves are started up by the electronic control box with an adjustable time
periods such as 0.1second and pressured air directed by the selenoid valves to the
pipes.Pressured air injected through the holes on the pipes to the venturi. Pressured
air with a high velocity makes seconder air flow while passing through the venturi.
Pressured air and clean air in the upper part of the filter flows through the filter bags
because of the differantial pressure. According to the resultant air flow on the upper
part of the filter, there is a pressure rise in short period and this pressure rise makes
the bags to be cleaned of the dust on its outer surface.
During operation a small part of the filtering area can be cleaned. Because of it air
flow does not change at any time.Required efficiency of the jet pulse filter is the
caught dust amount of %99 in the air.
At this point efficiency is supplied by the dust plane on the surface of the bags.On
bag cleaning process this thiny dust plane should not be cleaned.
03.2
Operating Principle
Filter bags made of polyester or special materials (according to process) in a
cylindrical bag cage.Bag,bag cage and venturi is placed in the holes on perforated
steel.
Cleaning system :
Electronic control unit makes the valves open.
When the valve opens, pressured air in the selenoid valve comes off.
Air with 6 Atu pressure follows the way of air tank-pipe-venturi-bags in a short
period. While passing through venturi seconder air is taken by pressured
air.Thus bags on this line is cleaned.
Filter housing, which is fully impervious, is separated by perforated steel into two
parts as upper and lower part.Lower part consists of bags and bunker. There is an
air lock, bucket or an leakproof materials under the bucket.Upper part includes the
pipes, selenoid valves, and the clean air outlet.
•
•
•
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Starting up and operating the filter :
Before start up ;
1.
2.
3.
4.
Check if there is a leakage on the air pipes and filter housing.
Check electric connections and electronic control unit working regularity.
Check the fan’s direction of rotation.
Check whether electric line is 220V-50Hz or not on the elecronic control unit.
Starting up the system ;
1. Close the inlet damper of the fan,
2. Start up the system for a short period and check if there is a rubbing surfaces or
not.
3. Start up the fan and open the inlet damper slowly and make the adjustment on
the suction side.
4. Filter’s dust concentration is controlled by a U manometer or an electronic
differential pressure gauge.(According to the bag and dust type this differential
pressure should be between 100-150 mmWG.)
5. To reduce the pressure resistance pressured air should reach 6,5-7 Atu.Adjust
the pulse time to a shorter period to have a better cleaning and keeping
pressure difference in low values. Electronic control unit and bags life can make
longer as a result of using less pressured air by increasing the pulse time
period.
Operating The Electronic Control Unit :
Electronic Control Box Includes:
−
Blowing Period Switch
−
Manuel and Automatic Control Switch
−
Power Switch
−
Valve Swicth
−
Bags Pulse Transformation Switch
According to the dust concentration blowing period can be adjusted between 0,90,54 split second by blowing period potansiometer.
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1” selenoid valve is used for each bag group. According to the dust concentration
and operating conditions transformation period between bags can be adjusted in
the range of 0,5-30 seconds.
Automatic or manuel control can be done by the switch on the panel.
Manuel Control : (Used to check the functionality of the valves and piston.)
Energy is switched on/off on the panel.
Some additional devices that shows the dust concentraiton of the bags can be
assembled to the electronic control unit.
04.
MAINTENANCE MANUEL
1. Shaking off system have no mechnanical part so there is no need to lubrication.
But air lock and helix screw in the bunker needs lubrication.
2. To have no corrosion problem, metal parts should be painted periodicially .
3. Suction of the fan decreases if the dust concentraiton on the bag surfaces
increases. In this condition stop the fan and start up only shaking off system to
get the bags cleaned.
4. Selenoid Valve maintenance;
4.1. Check the bobbin,
4.2. Check the cables mounted on the bobbin.
4.3. Check if the pressured air is dry and without oil.
4.4. Check if the valve diaphragm is all right and have
any dirtiness.
4.5. If there is dirtiness it should be cleaned. Diaphragm
or valve should be changed if there is problem on
Selenoid Valf
the diaphragm. The pressure should not reach 8 Atu
for the diaphragm explosion control.
4.6. Check the spring that pushes the diaphragm.If any problem about the spring
hardness, spring should be changed with the new one.
5. Filter bag cleaning and maintenance ;
There is no need to clean the bags in normal conditions and continiously
operating conditions.
Systems with the optimum air velocity for the operating conditions does not
need any maintenance. Mistakes during assembling and maintenance can
occur a necessity of repair on the system. Deformations and blockings on the
bags which is caused in long time working periods should be repaired by
changing the bags more economically.
6. Changing the diaphragm :
Loosen the bolts on the cover and open the cover, change the diaphragm.
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WARNING:
Be carefull not to fall the spring and the pin down while holding up the cover.
7. Selenoid Valve :
-
Loosen the bolts on the bobbin and get the bobbin out.
Loosen the bolts carefully and get the pilot group out.
Clean the deformed parts and change them if necessary. Order the spare
parts you need.
WARNING :
Do not tighten the selenoid valve bolts hardly during assembly. If tightened
strongly shuttle box base can damage or broke down. Strongly tightening forces
the shuttle and spring so they can not work properly.
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05.1
•
•
•
•
•
•
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Open the maintenance cover on the bunker and check the dirtiness of the
bags.
Open the bags maintenance covers and take out the dirty bags&cages. Clean
the bags with high pressured air. Mount the cleaned bags on the filter again.
Check if the pressured air shocks the bags or not.If not the water level in the
water collector is above the limit, discharge excessive water.
Check if the pressured air is 6-7 Atu or not.
Check the suction pipes and dampers,clean them if necessary.
Chack the rotor’s direction of rotation.If it is wrong make the rotor rotate on the
right direction of rotation.
Check the fan belts.If it is loosen tight them up.
Check the valves.
Check if there is an air leakage on the pipes,air lock or maintenance covers.
Dust Leakage in the system;
•
•
•
•
05.3
05
DETERMINING THE FAILURE ON THE SYSTEM
Suction problem occurs after a while;
•
05.2
Part
Check all the bags one by one.Change the damaged bags.
Check the air lock is working properly.
If the air on the outlet of the fan is dusty air check the filter bags.
If there is a vibration on the fan some dust particules can be collected on
the rotor,these particules can cause a vibration on the fan.So open the
maintenance door and clean the rotor blades.
If the shakening system pressure is generally low;
•
•
•
•
•
•
Selenoid
valve can be open.Check the system and clean if
necessary.Especially check the shuttle spring system carefully.
There can be a short circuit or valve is always open.
There can be a problem on the signal of the electronic control unit.
There may be a wrong connection, leakage on the compressor or pipes.
The min. pressure required for the selenoid valves to close is 3 Atu. If the
pipes after the closing valve is too long the required pressure 3Atu can not
be reached.
Solution : Mount the compressor and closing valve near the dust collector
unit.
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Filter bag problems;
• Check the moisture of the operating system, if the system moisture is too
low static electric may occur.
• If the moisture level is high dust can stick on the bags.Check the moisture
of the bags.
• Check the sticked dust particules in the bunker. The particules rised to the
filter bags can damage the bags.
• Filter bags are wrongly mounted. The friction between two bags, bag-cage
or bag to the outer surface can be problem. Check the vertical distances
between bags.
• The particules with high velocity may damage the filter bags.Check the
dusty air inlet and perforated plate, change them if damaged.
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05
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