冷干机英文说明书

1、Compressed Air Freeze DryerUser ManualMaintenanceI. Foreword:This manual mainly instructs you on how to use the equipment properly. Its purpose is to prolong the service life and diminish operational failure, so as to guarantee the compressed air quality. It also gives releva nt in formatio n on the

2、 equipme nt for refere nee. So please read the manual carefully before use, and take operati on and maintenance accord ing to the in structio ns for fear of equipme nt breakdow nII. Functions :The key function of the cooling-type compressed air freeze dryer is to remove the moisture of compressed ai

3、r. With a cold media heat excha nger (evaporator), it can drop the compressed air temperature to 10C and condense the moisture or water drops in the compressed air. The n it separates the air from water drops with a separator. The n the water drops are discharged from the system by an automatic drai

4、ner, which puts the pre-cooli ng process. Un der no rmal situati on, the water content of the precooled compressed air is about 0.59g/m3, and the dewateri ng rate is up to 93%. The user can select the right model or add filters according to the actual condition.III. High Efficiency from the Excellen

5、t Jiasheng Design :The low en ergy con sumpti on and low pressure drops en able the lowest operati ng cost, so it is en ergy-efficie nt. The large Gas-to-Gas heat excha ngeca n remove half of the heat load in the air, thus to narrow the cooling system and reduce the power consumption to the utmost,

6、which guara ntees sufficie nt cooli ng and frees the dow nstream pipeli ne from conden sati on; With large coveri ng, the evaporator en ables to cool dow n the compressed air eve nly to dew point temperature. The multi-cha nnel desig n of the coola nt can make the best use of the available cooli ng

7、capacity and free the evaporator from frost.IV. Cold Media System Flow :Compressed by the cold-media compressor, the cold media will turn into high-pressure and high-temperature gas. After radiated by the air-cooli ng conden ser, it will be conden sed to liquefaction. And then the moisture and impur

8、ity are removed from its pipeline with a dry filter. And then the high-pressure liquid cold media will go through the capillary throttle before turni ng into low-pressure and low-temperature liquid to en ter the evaporator. The n it absorbs the heat from the compressed air, and is gasified in to the

9、 low-temperature gaseous cold media, and flows back to the compressor through the liquid-gas separator, which putsthe refrigeration cycle to an end.V. Installation Instructions ：Location5.1 Choose a cool and draughty place as the best location for installation.5.2 In stallati on of the mach ines the

10、 ambie nt temperature is limited to 35C5.3 Do not install it outdoors, in a damp and dusty place, or in a corrosive and polluted place.5.4 The location shall be one meter away from the wall and two meters away from other machines, which facilitates cleaning and maintenance.5.5 Install it horizontall

11、y to facilitate drainage.Wiring5.6 Install a dedicated switch beside the power supply of the dryer for protection. For more information please refer to relevant instruction manuals.5.7 The supply voltage cannot exceed the rated voltage. (Label specification 5%)5.8 The power cord s specifications dep

12、end on the current and the length of wires.5.9 Do not share the protection switch with any other equipment.5.10 Connect the ground wire properly.III. Operations ：6.1 Verify that the power supply is under normal voltage (label specification 5%).6.2 Verify that the environmental temperature is normal.

13、6.3 Verify that the compressed air has not yet entered the dryer. (Stop the air compressor fromrunning, or fasten the valves, and turn on the air bypass valve.)6.4 Verify that the cold media meter is under normal pressure. (Before running, the cold media pressure must be kept around 711kgf/cm2，and n

14、ot less than 6.0kgf/cm2 in winters).6.5 Verify that the cooling water intake is under normal pressure and humidity. (Hydraulicpressure: 24kgf/cm 2, water temperature: max. 35 C) 6.6 Verify that the exhaust rate of the air compressor matches the processing capacity of the freeze dryer.During Operatio

15、n6.7 Turn on the power, and the dryer will begin to work.6.8 Verify that the dryer is under normal working voltage.(See label.)6.9 Verify that the cooling water intake/outtake is under normal temperature difference. (510C)6.10 Verify that the cooler s fan motor is running well.6.11 After ten minutes

16、 of running, let the compressed air in the dryer. (Start up the air compressor or open the valves slowly and close the air bypass valve. )6.12 Check whether there is air leakage.6.13 Verify that the intake compressed air temperature is normal. (High temperature: WCD W0C, Low temperature: WAD N0C)6.1

17、4 Verify that the intake compressed air is under normal pressure. (See label.)6.15 Verify that the passageway of the dryer is under normal temperature difference. (Temperature difference:1030 C。6.16 Verify that the cold media is under normal high/low pressure. (High pressure under zero22load：13.515.

18、5kgf/cm , Low pressure：3.64.0kgf/cm )。6.17 If the water-cooling model is under abnormal high pressure, please adjust the water-regulating valve at the cooling water entrance. (Clockwise to decrease the pressure, and vice versa. )6.18 After 30 min utes of operati on, check whether the drain age syste

19、m is un der con trol.(Gen erally speak ing, the high-pressure drainer will drain automatically. )When all the above items are normal, the operation is under control.ACaution :1、Idling should be not more than 30 minutes.2、Restart the machine 5 minutes after shutdown for fear of damaging the compresso

20、r.IV. Routine Maintenance :7.1 Check the high-pressure drainer every day for fear that it might be jammed to stop draining ； clean it once it is jammed ； clean it once a week (depending on the actual situation ).7.2 Check whether the cooli ng water is un der no rmal con diti on every day (Sta ndard

21、hydraulicpressure: 24kgf/cm2, in take water temperature: below 35 C. 7.3 For the water-cooli ng model , please clea n the water filter every three mon ths or whe n thehigh pressure of the cold media is over 17kgf/cm . If the pressure of the cold media is still off sta ndard, please clea n the conden

22、 ser and the front cooler.7.4 Ope n the drain age valve at least twice a day.7.5 For large models, please coordi nate with our compa ny on a thorough maintenan ce.VI. Multiple Protection System :Overcurrent protection ； Compressor overheat protection. The multiple protection system en sures no rmal

23、operatio n of the equipme nt and rest you assured.IX. Failure and SolutionsStateCauseSolutionsAbno rmal power supplyMaster power supply protect ion switch damaged or jumped offMake sure whether the power supply is lack of phase, in short circuit or unconn ected to ground wire, and check whether the

24、power switch is damaged.Abno rmal voltageRated voltage allowanee on label 5%Offli neFind and repair the offline partElectric orga n breakdow nBad power switch, electromag netic switch or fuseReplace it.Overload protector, high-pressure protecti on switch jumped off or in bad con diti onReset or repl

25、ace it.Poor operati ng capacita neeReplace it.Bad compressorReplace it.Bad pressure switchReplace it.Bad fan motorReplace it.Bad overload protectorReplace it.Poor capacita nee of blowerReplace it.Service con diti on not matched or wrong operatio nCon ti nu ous startupRestart at an interval of over 5

26、 minutes.Overload throughputPrecooler overloadPrecooler inlet temperature or environmen tal temperature too highAdd cooli ng or improve ven tilati on.Fin of conden ser or cooler jammedClea nse it.StateCauseSolutionsAbno rmal pipi ng systemPip ing valve not fully ope nOpen the valve fully.Small calib

27、erEnl arge the caliber.Too long pip ing, too many elbows and joi ntsRedesig n the pip ing system.Over two air compressors in parallel operati on, not matched wellRedesig n the pip ing systemBypass valve not faste nedFaste n the bypass valve.Air not past dryerFully ope n the in take valve of the prec

28、ooler.Precooler not horiz on talPut it horiz on tally.Air han dli ng capacity exceeds rated value.Piping filter jammedCleanse the filter or replace the filter element.Too much air leakage on pip ing jointCheck the pip ing.Evaporator end plate frozenBad pressure switchReplace it, check the circuit, a

29、nd revise the switch.Capillary jammedCheck or replace the capillary.Abno rmal cooli ng systemCold media leakageFill the leakage or fill cold media.Compressor valve wear and tearReplace it.Cold media pipi ng jammedChange the desiccant , vacuumize it again, and fill the cold media.Pressure switch fail

30、ureReplace it.Breakdow n of fan motor of conden ser or coolerReplace it.Abno rmalConden ser fin jammedClea nse it.dewateri ng effectDrain age valve failure or not fully ope nReplace it or ope n the valve.Abno rmal operati ng pressureCon sider to cha nge or update the model.Automatic dra iner in cli nedPut it horiz on tally.Drainer filter scree n jammedClea nse it.Drai npipe jammedClea nse it.Drain pipe higher tha n automatic drainerRein s