电除尘器使用说明书_英文

ESP Operation InstructionsContents1. Equipment Name and model (1)3. Use and design condition (1)4. Size and technical parameters (2)5. Operational principle (2)6. Structure Characters (3)6.1 Shell (3)6.2 Ash hooper (4)6.3 Sustain axletree (4)6.4 Cathode system (4)6.5 Cathode suspend (5)6.6 Cathode quiver (5)6.7 Anode system (6)6.8 Anode quiver (6)6.9 Steel bracket (7)6.10 High pressure silicon commutate equipment and control (7)7. Special items specification (7)8. Using and maintain of the equipment (7)8.1 Safe rules (8)8.2 Debugging of the electrofilter (10)8.3 Operation rules (12)8.4 Electrofilter maintain (14)8.5 All the services the manufacture’s supply (16)9. ABB-electrofilter (17)1. Equipment Name and model1.1 Name: electrofilter1.2 Model: in the technical protocol2. Equipment Shape (in the Equipment outside drawing) and weight2.1 Electrofilter Shape Size(long*width*height): in the general drawing2.2 Equipment weight: in the general drawing3. Use and design condition3.1 Use for the fume cleaning of the coal burning boilerAccording to the user’s requirements, one or more electrofilters supply for one boiler. The electrofilters install between the air preheater and the induced draft fan. They are connected by the air flue.This equipment designed by the FLAKT Company’s electrofilter technique. Its capability is well and the service life is long.3.2 Design condition: fume volume, fume pressure, fume temperature, coal composition, fume composition, dust percent, and dust composition, all the parameters are consulted to the technical protocol.3.3 Capability parameters3.3.1 Efficiency of dust collection: seen in the capability ensure term of the technical protocol3.3.2 Fume resistance: seen in the capability ensure term of the technical protocol3.3.3 Leak rate: seen in the capability ensure term of the technical protocol3.3.4 Noise: seen in the capability ensure term of the technical protocol3.3.5 If the equipment run in the non-design condition, the capability parameters can be adjusted consult to the following correction curve and correction fomula.3.3.5.1 Inlet dust percent correction factor; Cdust3.3.5.2 Fume volume correction factor Cgas3.3.5.3 Inlet fume temperature correction factor Ct3.3.5.4 Sulfur percent in the coal correction factor Cs3.3.5.5 Flow together cut percent correction factor Carea3.3.5.6 Adjust formulaTotal correction factor: CT=Cdust×Cgas×Ct×Cs×CareaDesign K: KM=KD×CTKD={ In [ l00 / (100一EFFD) ] }EFFD—capability ensure efficiencyEFFD=ionconcentratdustinlet ionconcentratdustoutletionconcentratdustinlet×100% Correction K: KM=KD×CTCorrection dust collection efficiency: EFFM=1-e-KM4. Size and technical parameters(The size of ABB model electrofilter can be seen in the technical protocol )5. Operational principleOperational principle drawing of the electrofilter6. Structure Characters (in fig.1)6.1 Shell (in fig.2)Shell is the important part of the electrofilter. Its design connects to the total fee, installation and basement work of the equipment.The structure of the shell is sealed welding. It includes the shell side board,gable wall board and the roof prefabricate board. The side board is the horizontal or self-sustain structure. The main load transfers from the roof board to the upright column and then transfers along the upright column to the basement.The side board design uses minimum pivots.The capital upright column in the big electrofilter can transfer the load to the basement directly.Inside upright column installs in the check channels between every electric field.This structure can detract the load without high-loading materials. And the structure can ensure fastness and the electrode vertical. The machine can run in high efficiency. And most of the manufacture work can be finished in the factory. This can ensure high quality.6.2 Ash hooper (in fig.3)The dust marshals to the ash hooper. At the bottom (about 30 to 50 percent of the altitude of the ash hooper) of the ash hooper, there is effect heater to avoid ash coagulation. The block board on the bottom is used to avoid the electric field leak and ash expands.The maximal angle of the ash hooper is 35 degree.6.3 Sustain axletree (in fig.4)The sustain axletrees are installed between the shell upright column and the steel bracket to avoid the anomalistic load caused by the head expand. The sustain axletree is made by low friction material. There is ball connection on its bottom. And it can glide along the horizontal orientation and circumrotate without high load.6.4 Cathode system (in fig.5)The cathode system is the heart of the electrofilter. The cathode line is used to make the corona. It is on the symmetrical site of the electric field to avoid short circuit. The others, the cathode system must be easy to maintain and can’t be affected by the temperature. This can ensure the electrofilter running normally.The cathode line appends between the frames. The up down and middle frame coupling firm together with the suspend beam. All the frames suspend on 4 insulating bushings. The insulating bushings install on the roof heat insulating box. This can ensure the gas insulates with the outside.The design of the frame ensures the maintain workers can walk on it without any distortion. The middle frame shortens the length of the cathode line. The cathode line swings little and easy to bring effect quiver after quivering.The main characters of designing of the cathode system is as followings.The cathode line is the total tube awn line. There is protected equipment on theconnection of the cathode frame and awn line. The install model of the frame and awn line connection board is the double fasten of the inserting and bolt. This can ensure the cathode line without line drop. The running efficiency of the cathode line is 100 percent. This can avoid the electric field opening which caused by the bolt cut. The electrofilter can run stably for a long time.The corona line chose according to different dust.6.5 Cathode suspend: (in fig.7)The sustain insulator on the shell roof is installed in the sealed heat insulation box. There is a pole cover on the heat insulation box. It is easy for the heat insulation box maintain.The transformer is installed on the roof of the electrofilter. It connects with the cathode system via the leas. There are steel structure roof and onetrack suspend on the roof. It is easy to maintain. If the transformer is out work, we can use the onetrack suspend to suspend the transformer to the ground to maintain.6.6 Cathode quiver: (in fig.8)During the course of the dust catch, a small part of the dust will attach on the cathode frame and the cathode line. If the dust can be clear in time, the gathered dust will cause corona close down. And the efficiency of the dust catch will low. So the gathered dust on the cathode system must be cleared by effectively quiver. The quivering is finished by the hammer. The hammer is installed on the horizontal axis. It bumps the frame in turn. The hammer quivers on the pole of the connection of the middle frame.The hammer has high strength and can work in the fume without failure.Every bus-bas has one se quivering equipment. This can be seen in fig.9. The quivering driver installs on the electrofilter roof. It is the roof transfer. Some others are connected on the quivering axis directly. This can be seen in fig.10. It transfers via the shell side board. It is the side transfer.The driver equipment is installed on the up part of the insulator heat insulation of the roof transfer. The insulator is installed in the heat insulation box. There is check door on the insulation box to maintain and clean the insulator. The roof transfer changes to theside quiver use the pin wheel. This can be seen in fig.11. This pin wheel structure will not cause the dust block. It can work in any fume and do not need adjust and maintain.The running of the quiver equipment uses programming motor and PC control. The programming motor and PC machine can workout the best quivering frequency. We will commend one set quivering frequency table as the following. During the running course, you can adjust it according to actual condition.Quivering frequency tableDust character: normal Inlet fume concentration: 2~50g/Nm3Electricfield quantity Quivering periodCathode quiver Anode quiverA B C D E A B C D E2Quiver time (min) 2 4 1 3Circulate time (min) 10 10 10 303Quiver time (min) 2 4 6 1 3 5Circulate time (min) 10 10 30 10 30 60 4Quiver time (min) 2 4 6 6 1 3 5 5Circulate time (min) 10 10 30 30 10 30 60 90 5Quiver time (min) 2 4 6 6 6 1 3 5 5 5Circulate time (min) 10 10 30 30 30 10 30 60 90 90 6.7 Anode systemAnode system is the other important part of the electrofilter. FLAKT Company usesthe GS3-750C/480C model polar plates. The width of the polar plates is 750mm/480mm.The shape of the polar plates can be seen in fig.12. Compared with normal polar plates,this type polar plate improves the rigidity and eliminates the sharp angle spark. It isdesigned without welded line. And there is a strengthen hole on roof of the polar plates forthe top structure suspends.The bottom of the polar plates connects with the bounce pole use self-locked bolt without any welded line. And the quivering chopping block also connects with the high strength bolts. Polar plates bounce pole orients exactly from the side.6.8 Anode quiverEvery line polar plates have one hammer. It is similar to the cathode quiver. The quiver strength distributes to every polar plates via bounce pole. And the strength will not centralize to one point. We choose a minimum acceleration according to the structure antifatigue life and the quivering availability. This can ensure the acceleration uniform.To keep the proper acceleration is aim to make the dust sheet to slid to the ash tooper. This can avoid the dust fly upwards.The frequency of the quiver is also need to be controlled as low as possible. This can improve the efficiency of dust remove.6.9 Steel bracketThe steel bracket is composed of upright column, waler and diagonal bracing.The upright column has three models. One is use channel steel to form the frame. And the other is use H steel. And the third is use big caliber steel tube. We choose the third model.6.10 High pressure silicon commutate equipment and controlThe details of the high pressure silicon commutate equipment and its control can be seen in the electric products specification.7. Special items specification7.1 This specification introduces the basic circumstances of the equipment. Everybody who will use this equipment needs to read. Also everybody needs to read the content of the 8th section, especially for the self safe regulations.7.2 This equipment is the large outdoor construction. We take full consider on the self safe. All the walkways, stairs and railings are firm. And the check-doors are marked with high pressure sign.7.3 Material level-sensing equipment uses the capacitance level-sensing device. Its capability is well and easy to maintain. If you catch by some questions during debugging and daily using course, the factory will supply the on- site service and guidance.8. Using and maintain of the equipmentThe electrofilter is the large outdoors all-around equipment. Right using and effective management is important to its normal running and prolong its life. So everybody who will use this equipment needs to take a special training for using the electrofilter. And also the buyer needs to organize a special manage organization to take charge of the electrofilter’s using and maintain.This section includes the safe rules, debugging, operation rules, maintain and what service the producer can supply of the electrofilter.8.1 Safe rulesAll the workers who work on the electrofilter must stand to the safe rules, include the temporary workers, example for the check workers and the maintain body and so on. There must be a special safe administrator.8.1.1 Self-safe of the workers8.1.1.1 When work in the shell and on the roof of the electrofilter, the workers must wear the safe-cap and tie the safe-belt.8.1.1.2 When work in the electrofilter, the workers must wear the mask or the respirator. The type of the respirators chose by the type of the dust in the fume. Sometimes the workers must be supplied with the pressed air to breath.8.1.1.3 The percentage of the oxygen in the fume must be more than 20. This can be determined by the machine.8.1.1.4 If the oxygen in the fume is less than 20 percent, we must use the pressed-air equipment to supply fresh air.8.1.1.5 The workers must wear the work clothes with the cap and gloves, mask and rubber shoes. The edge of the work clothes, gloves, mask and shoes must be sealed. And the work clothes must be cleaned after work.8.1.2 Check safe rulesThe works who check the electrofilter must be minimum two. Before check the electrofilter, the check workers must learn the types of the fume and dust and what harm it will cause, and what safe protect ways we can take. This can be seen is some files. The worker who mainly takes for the check work must be familiar with the structure and partsof the electrofilter. If there is any dager, he must know what to do. We also must take consider on the dust get together, wire and blast and so on. After finishing the check work, the manager must check the amount of the workers to avoid leaving somebody in the electrofilter to cause danger.Stand to the following rules when you enter into the electrofiter,8.1.2.1 1.1 section of the self-safe rules.8.1.2.2 1.4 section, safe rules for check the high pressure silicon commutate equipment 8.1.2.3 Shut down all the quivering equipment and transfer machine motor, and use the lock to insure.8.1.2.4 Shut down the safe-switch of the high pressure silicon commutating equipment and use the lock to insure. The high pressure separate switch must be adjusted to the earth connect site.8.1.2.5 The check worker must use the earth connect stick or other effect tools to make the cathode system connect the earth. The site of the cathode is in the roof heat insulation box and the anode quivering platform check-door.8.1.2.6 Shut down the switch of the draft fan and use the lock to insure. If the draft fan is used by more than one electrofilters, don’t shut down the switch and shut down the walkway air door.8.1.2.7 Shut down the air door and electric equipment and lock to insure.8.1.2.8 Open all the check doors, and wait until the temperature is low enough. If need to low the temperature quicker, we can open the air door and the draft fan.8.1.2.9 If the draft fan is running when the workers work in the electrofilter, we must take consider of the body bear ability and the danger during operation. First lock thecheck-door on the locked site to avoid the check-door shut self.8.1.2.10 The check worker must prevent scalding.8.1.2.11 After enter the electric field, first check if there is any dust accumulates. If there is any, first clear and find the reason for the dust accumulates before re-running the electrofilter.8.1.2.12 If need to check the dust, first check the model of the level-sensing device.Operate according to the product using specification. Shut down the valves.8.1.2.13 Check the amount of the check tools after checking to avoid leaving in the electric field.8.1.3 Safe check of the equipment8.1.3.1 Checking the earth connection ability of the earth connect equipment and other protect equipment.8.1.3.2Checking the lock of the control box and switch box, other body can’t open the lock.8.1.3.3 The voltage of alternating current used on the hand light and other electric tools of the elec trofilter inside roof can’t higher than 50.8.1.4 Safe rules for high pressure silicon commutate equipment checking8.1.4.1 Shut off the power supply of high pressure silicon commutate equipment, put the switch on off site and lock to insure.8.1.4.2 Check the switch on the high pressure control board turn off.8.1.4.3Put a board marks with ―working on‖ on the high pressure control box conspicuous site.8.1.4.4 Check the ground lead.8.1.4.5 Connect the high pressure parts of the high pressure silicon commutate equipment with ground lead material.8.2 Debugging of the electrofilterAfter the installment of the electrofilter, it is must be debugged. All the debugging data must be noted for compare.8.2.1 Adjust the distance between the cathode and anodeIn order to get high dust remove efficiency, the distance between the cathode and anode must be controlled seriously. After the installment of the equipment, we must adjust the distance seriously. The cathode line must be put in the middle of the channel. And the windage is less than index value.Adjust the distance between the cathode and anode by measue the distance between the cathode frame plane and the up pole board edge plane.8.2.2 Air current distribute testThis test is used to test the gas distribution.8.2.2.1 Test site: can choose one site to test. If want to test for the whole equipment, choose the site after the first electric field8.2.2.2 Test area: divide the test cross section into a series of rectangle little area, the area is about one square. The test site is the center of every little area.8.2.2.3 RMS is the test assess standardV n V Vi r n i i ⨯--=∑=)1()(σIn the equation: Vi —— Actual wind rate(m/s)V ——Average wind rate=∑=ni Vi n 11 n ——Total test points8.2.2.4 If the test value is bigger than the index value, adjust the guide plate site. Then test until equal to the index value.8.2.3 No-load voltage current characteristic testAfter equipment installation is completed, voltage rising test is carried out to each electric field (power supply area) which is supplied with air. It can be used as a way to inspect the installation quality of ESP anode and cathode system.The way of the boost pressure test is as following:8.2.3.1 Clean the electric field to make sure there is no rubbish in the channels.8.2.3.2 Clean all the insulators, such as the insulate bushing, china axis, high pressure wall bushing and electric heater.8.2.3.3 Check the high pressure silicon commutate equipment according to the product specification before running8.2.3.4 Shut the check door and confirm there is nobody in the electric field8.2.3.5 After the electric heater working 24hs, supply the electricity by every electric field,boost the pressure slowly. Write down the electricity value every boost 2kv until to the rated value. Give out the voltage current characteristic curve. This can be the no-load voltage current characteristic standard for every installation quality and every large mend. This test can do three times. Give out a curve according to the average value.8.2.4 Wind leak testFirst shut down the inlet and outlet door of the gas channel. Then make the smoke screen in the equipment. And then shut down all the check doors. Look the fume leak circumstance. Write down and repair.The other way, open the draft fan shut the check door, using the lighter to check every weld line. If the light is excursion to the weld is leak. This way can also check the check door.8.2.5 Adjust the quivering timeBefore the equipment leave the factory, the quivering time has been adjusted. The adjust value can be seen in the 6.6 section quivering frequency table.Programming motor and the PC control quivering can adjust the quivering time in any time.8.3 Operation rulesElectrofilter operation rules have following four steps: check before running –start—running-stopOperate the electrofilter must according to the running rules. Don’t forget the safe rules.8.3.1 Check before running8.3.1.1 Check the electric field, channel and ash hooper if there is any tools or other rubbish, such ash wiriness, weld, bolt and so on.8.3.1.2 Make sure the electric machine running orientation is right. Open the quivering electric machine, ash drain equipment. Rotate machine is slid and the electric machine insurance is working. Check the height of oil level is equal to standard and the quivering point is on the middle and the site of the hammer is normal.8.3.1.3 Check the surface of every insulate bushing, china axis and high pressure wallbushing is clear and without any crack.8.3.1.4 Check the temperature relay of the electric heater. And adjust the up and down limit.8.3.1.5 Check the transformer. Leak the oil or not.8.3.1.6 Check the transformer connects to the ground. The connect ground resistance is less than 4Ω.8.3.1.7 There is no body in the electrofilter.8.3.1.8 Remove the special ground connect stick or other ground connect tools on the cathode system.8.3.1.9 Check all the man pole doors. Such as the sealed slim, shut down and the bolt and lock and so on.8.3.1.10 Shut down the heat insulate box door and locked it.8.3.1.11Check the alarming equipment on the electric control board. Press the ―try‖ button to test alarming.8.3.1.12 Check the power net pressure.8.3.1.13 Check the inlet and outlet wind doors.8.3.1.14 Check the level machine. Adjust the zero site.8.3.1.15 Check the tube system of steam heat system. Such as the leaking, flange and valves.8.3.2 Start8.3.2.1 After the check before starting, all the safe rules is down and the workers are confirmed.8.3.2.2 Electric heater has work 24hs before starting to make sure the ash hooper and all insulators are dry. If use the steam heater, need to work 24hs before.8.3.2.3 Check the current of the electric heater.8.3.2.4 Start the ash transfer system8.3.2.5 Start the quivering structure8.3.2.6 Open the doors of the inlet and outlet tubes8.3.2.7 Start the draft fan8.3.2.8 After the whole system running, the out strength of the boiler is 30%MCR. During the Plenty burning circumstance, the electrofilter can start. The cathode and anode are all running.8.3.3 RunningCheck the equipment running circumstance, and check as the following steps:8.3.3.1 Check the working current of the heater system and write down.8.3.3.2 Check the index light of the control board and alarming system. If there is any abnormity, please write down.8.3.3.3 Check the current rectifier and write down.8.3.3.4 Check the ash transfer system.8.3.3.5 Check the quivering axis and hammer. (If there is any un-normal, this can hear out the check door.)8.3.3.6 If the high pressure silicon commute equipment is out door, check the transformer oil disk liquid height. Drain the raining water in the oil box.8.3.4 StopIf need to stop the equipment, do according the following steps:8.3.4.1 Shut off the draft fan, and cut off the fume in the channel.8.3.4.2 Shut down all the commutate machine of every electric field.8.3.4.3 Shut down all the wind doors of every inlet and outlet channels.8.3.4.4 Let the quivering system and ash transfer system work about 2 hours. Drain all the ash out the electric field.8.3.4.5 Shut off the quivering equipment and ash transfer system.8.3.4.6 Shut down the power.If the stop is temporary, let the quivering equipment and ash transfer system work. 8.4 Electrofilter maintainThe daily maintain for the electrofilter is very important.8.4.1 Daily maintain8.4.1.1 One body maintains the electrofilter specially. He must be seasoned of the electrofilter. And the operator must be training carefully and be fluent to the electrofilterstructure and function.8.4.1.2 The operator check the equipment running circumstance and write down.(include the pressure ,electric current and second pressure and electric current)8.4.1.3 During the running course, the operator must check the quivering structure working circumstance and other electric danger. If there is any danger, give note to the check apartment. This can be seen in the danger exclude way.8.4.2 Maintain when the equipment is stopWhen the machine stops because of some trouble, we must check the electrofilter all-around. The machine must be middle checked every one year. Make out the check plan according to the check time. Include exchange the electric pole and some easy spoiled parts. The machine must big large mend every four years. Check the electric field and adjust and exchange some parts spoiled or affect the ability. And the lubricating oil must be changed in time.Once the machine stops, we can do some normal check, the contents are as follows: 8.4.2.1 Clean the ash in the electric field.8.4.2.2 Check if there is any cauterization on the electric field side plate, check door, roof plates , pole plate ,outside plate and other heater transfer parts. Analyses the reason and finish it.8.4.2.3 Check the transfer machine’s temperature, the inside oil plate of the reduction box, quivering axis axletree blocks or not, hammer can rotate or not. Exchange or add the oil according to the electric machine product requirements.8.4.2.4 Check ash on the distribute plate, and clean it.8.4.2.5 Check the cathode line. Use 1 point 5 meter stick hit the helix line in the channel orientation. If the cathode line is lax, it can be checked. If the helix line step distance is different, it is corrosive. Exchange the cathode line according to the check circumstance. If the own line hit without drop, this can confirm the own line is good.8.4.2.6 Check the anode plate.8.4.2.7 Brush the bushing every time when the machine is stop. Check if there is any small crack by the hand light. Discharge the bushing when brush it. This can be seen insustain axis insulate tube change way of the ―danger eliminate way‖ .8.4.2.8 Check the connect ground site. Check the resistance, corrosion and other mechanic block.8.4.2.9 Check the connect switch, electric cut machine. Clean the control board and exchange the damaged parts.8.4.2.10Check the check door’s seal ability. Exchange the sealed material according to the actual circumstance.8.4.2.11 Check the high pressure silicon commutates equipment. If there is any fault, check it according to the electric company’s specification.8.4.2.12 Check the heat parts. If it is damaged, exchange it.8.4.2.13 Check the quivering axis. If the site the hammer hit change 5 centimeters, change it.8.4.2.14 Check all the protect equipment and all the locked parts.8.5All the services the manufacture’s supplyWe can supply all the services as followingsIf you catch with some troubles when you check the faults or need to diagnose the equipments before big or middle mend, we can send one of our engineers to help settle the problems. He will give out the way to settle all the problems and supply some improve measures. And he will chat with the equipment operators, give them some technique items and tell them how to operate the machine effectively.The engineer will give out a hard copy report about his on site check of the equipment. This will give to our company’s research apartment to improve design and commend this specification.9. ABB-electrofilterFig.1Fig.2 ShellFig.3 Ash hooper heater and airflow damping plate designFig.4 Sustain axletreeFig.5 Electric discharge system steel frame design。