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1. What is gravity disc ?<\/strong> 2. How to choose the correct size of gravity disc ?<\/strong><\/p>\n 1) can choose it. Separation temperature 2) density of oil at this temperature 3) desired through put of oil and by using of nomogram .<\/p>\n 3. What is paring disc ?<\/strong> 4. What about water washing ?<\/strong> 5. What is steam jetting ?<\/strong> 6. Compare purifier and clarifier ? Purifier Clarifier<\/strong> 7. How do you change purifier to clarifier ?<\/strong> 8. What is purifier, clarifier ?<\/strong> 9. How to change purifier from H.O to D.O ?<\/strong> 10. Why multidisc provided ?<\/strong> 11. Cause of excessive vibration on purifier<\/strong> 12. Explain purifier over flow<\/strong> Why have not get enough rpm when purifier is running ?<\/strong> How to adjust bowl height ?<\/strong> 1. What is gravity disc ? The gravity disc is important part of purifier, which set the location of the oil, and water interface line, which is variable according to the maker\u2019s design. 2. How to choose the correct size of gravity disc ? 1) can choose it. Separation temperature 2) density of oil at […]<\/p>\n","protected":false},"author":1,"featured_media":5884,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-5883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-marine-engineering-competency-exams-study-blogs"],"_links":{"self":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts\/5883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/comments?post=5883"}],"version-history":[{"count":1,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts\/5883\/revisions"}],"predecessor-version":[{"id":5885,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts\/5883\/revisions\/5885"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/media\/5884"}],"wp:attachment":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/media?parent=5883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/categories?post=5883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/tags?post=5883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nThe gravity disc is important part of purifier, which set the location of the oil, and water interface line, which is variable according to the maker\u2019s design.<\/p>\n
\nIt is a stationary impeller mounted in a chamber at the neck of the bow.
\nIt function is convert the rotating energy into a pressure head.<\/p>\n
\nWater washing is widely used techniques to remove acids, salts, and other impurities from the oil.
\nThe oil must be straight mineral oils or without dispersant additive oils.
\nWater should be injected into the oil before purifying at a rate of between 3 to 5% of the oil flow that is continuously renews the water seal in the purifier bowl.
\nThe oil temperature should be around 75 \u00b0C and water temperature about 5 \u00b0C higher than oil .It can be done continuously or intermittently.<\/p>\n
\n\udbc0\udc40 By blowing steam into the engine lube oil just pair to its purification.
\n\udbc0\udc40 Coagulation of colloidal carbon will occur.
\n\udbc0\udc40 Purifier will remove this carbon more effectively.<\/p>\n
\na. Remove water and suspended a. Remove finer and lighter particles
\nSolids particles from oils from oil
\nb. Two outlets water and clean oil b. one outlet for clean oil
\nc. Gravity disc on top c. No gravity disc only sealing ring
\nd. Blind disc on the top of disc stack d. Blind disc at bottom.
\ne. Sealing water required e. Sealing water not required<\/p>\n
\n\udbc0\udc40 Open up the purifier and set the blind disc at the bottom of the disc stack.
\n\udbc0\udc40 The water outlet is blocked by a seal on the gravity disc.
\n\udbc0\udc40 Blank off the sealing water inlet line.<\/p>\n
\n\udbc0\udc40 Purifier is a centrifuge, which is arranged to separate water and solid impurities from oil.
\n\udbc0\udc40 Clarifier is a centrifuge, which is arranged to separate finer solid impurities from the oil.<\/p>\n
\n\udbc0\udc40 Replace the gravity disc, which is smaller than the heavy oil
\n\udbc0\udc40 Open heater by pass vale.
\n\udbc0\udc40 Closed the F. O heater steam in\/out valves.
\n\udbc0\udc40 Open heater drains v\/v.
\nRemarks. Pure D.O purifier cannot change to H.O, it has no heater.
\nPure clarifier cannot change to purifier, it has no water outlet.<\/p>\n
\n\udbc0\udc40 To separate the liquid into thin layer & create shallow settling distance between discs.
\n\udbc0\udc40 Improving separation of oil from heaver liquids & solids particle<\/p>\n
\n\udbc0\udc40 Sludge too much
\n\udbc0\udc40 Foundation damper & spring failure
\n\udbc0\udc40 Bearing failure
\n\udbc0\udc40 Worn gear
\n\udbc0\udc40 Uneven wear of frictional clutch
\n\udbc0\udc40 Motor speed too high or too low<\/p>\n
\n1. Incorrect purifier disc size (inside diameter too large)
\n2. Too low fuel oil temperature
\n3. Too much rate of throughput
\n4. Too much sludge inside the bowl
\n5. Low speed (rpm) of bowl rotation
\n6. Sealing water failure
\n7. Operating water failure
\n8. Worn out main sealing ring<\/p>\n
\n1. Improper touching with friction clutch (worn out frictional clutch)
\n2. Touching with break
\n3. Excessive sludge in the bowl
\n4. Bearing failure
\n5. Motor running at overload
\n6. One phase power failure (Single phasing)
\n7. Sump oil level too high
\n8. Vertical shaft and horizontal shaft are out of alignment<\/p>\n
\n\udbc0\udcac By turning vertical shaft adjust screw
\n\udbc0\udcac By shim by bowl body<\/p>\n","protected":false},"excerpt":{"rendered":"