Thermopack Cleaning At Ankur Chem Food

Case Study Of Successful Cleaning Of Thermic Fluid System at

Gandhidham

www.hitechsolution.co.in helpline No.+91-9214048657

Inspection

30 Lac Kcl/h capacity – Alpha Entech Approx. 14000 lits. system(75 barrels) Single leg expansion tank (modified) Long pipelines Unavailability of proper draining area Unavailability of standby pump Three heat exchangers-one didn't have

draining point. Husk used as a fuel for thermic

heater(Calorific value – 3500 kcal/kg) Level gauge was not installed

at expansion tank


Arrangements Made Before Cleaning Made the Auto Cad design of the plant and scheduled our task Constructed a temporary pond for drainage Made two draining points in I - unit Removed the extra dead pipeline Installed the level gauge at expansion tank Arranged fire extinguishers and fire safety equipments at different places Arranged a tanker for drained oil due to lack of empty barrels


Oil DrainingDrained from different lowest

points of the system at 80 degree Celsius such as draining points of radiators , header and coil.

Initial draining was done with the help of gravity.

The residual oil was drained out with the help of air compressor.

Whole process was carried out at a temperature range of 50-80 degree Celsius

Entire drained oil was collected in a tank from barrels


Water Flushing In first stroke of water flushing we took

out the remaining oil which was not drained through air compressor

We have collected the oil which came in first stroke of water flushing through the coil

Approx 10000 liters of old thermic fluid was drained and collected

Batch flushing was done twice which was drained into the pond

Water flushing and draining process carried till water appearance was clear

After carrying out the water flushing the system was ready for next process chemical fillingwww.hitechsolution.co.in

helpline No.+91-9214048657

Chemical Circulation As Hitech Clean 205 is highly

concentrated so we guided the workers to perform the filling with precautions like using safety gloves ,face masks and goggles

Hitech Clean 205 was mixed with water in proper proportion and was filled in the system through overflow tank with the help of a circulating pump

We checked out all the draining points of the system to ensure that all the parts of the system were filled with the chemical.

While filling we opened all the air vents of the system to ensure that air should not be there in the systemwww.hitechsolution.co.in

helpline No.+91-9214048657

After the completion of 12 hours of circulation , about half of the chemical solution was drained out from the system.

Hitech clean 206 was added into the system and the process of filling was same as hitech clean 205.

It was also circulated continuously for 12 hours in the system at the same temperature.


• After complete filling of the chemical it was circulated continuously for 12 hours in the system• In these 12 hours we had simultaneously circulated the chemical in

two radiators out of three to increase the pressure• During the whole process the temperature was maintained at 60-80

degree Celsius

Chemical Draining & Water Flushing Chemical solution was drained out from the system after the

completion of more than 24 hours circulation Air compressor was used for complete draining of chemical

solutionWe checked the ph of filling water and then checked ph of

drained water to ensure that complete chemical was flushed out

We did three batch flushing , after that we started continuous flushing till ph level of drained water was neutral and clean.


Checking Of Cleaning EfficiencyWe checked the inner surface of the pipelines which was

dismantled from the system for some changes in the designWe have checked the strainer to find out the carbon content

in it and compared its condition before cleaning.

Oil flushed I flushing II flushing III flushing Final flushed


Water Removal

We opened all the drain points and flushed it out from the system to make it empty

Air compressor was used to take out remaining water

Air compressor was not enough to take out the water from the convective coil , so we heated the convective coil more than 100 degree celsius and the air supply was also given with the help of air compressor


New Oil FillingHitech Therm 60 was filled into the system

through expansion tank with the help of gear pump

While filling all the air vents were kept open System got full pressure in 69 barrels so we

stopped filling the system but the level was zero in expansion tank

We left the system for half an hour to ensure that water will get settled down to the lower point

From the lowest points of the system we have drained slowly to take out settled water

We started the circulation for half an hour , the pressure got reduced so we added one more barrel

Slowly we raised the temperature from 60 to 95 degree Celsius.


Moisture Removal Slowly we raised the temperature from 95

to 100 degree Celsius With the help of temperature gun we

checked different points of the system We waited for fifteen minutes to analyze

the effect of the raised temperature on the system

As soon as vibration on pressure gauge observed , we stopped raising the temperature , the steam was releasing from the air vent and overflow pipe

The level of expansion tank was around 10% at 105 degree Celsius

As we observed that steam stopped coming out of the air vent we again started raising the temperature slowly , this process went on until we filled five barrels more


Temperature RaisingAs we observed that no

steam was coming out from the system so we started raising the temperature in increments of 5 degree Celsius

We kept on repeating the same process continuously to raise the temperature as soon as steam was removed

At last we raised the temperature upto 280 degree Celsius

Thus the cleaning process was complete in all respects and the plant was handed over to our client.


Appreciated by

Ankur Chemfood

Ltd.


JOB DONE BY

MR. PRAMOD KUMAR (Sr. Service Engineer)&

MR. VIKAS KUMAR (Service Engineer)


Thermopack Cleaning At Ankur Chem Food

Services

water flushing

process chemical filling

draining points of radiators

pond water

stroke of water

process of filling

initial draining

water appearance