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Salinity In High Pressure Marine Boiler

TROUBLESHOOTINGS FOR AUXILIARY BOILER |

4. Auxiliary boiler High salinity in feed water. Causes: High salinity alarm. Remedial Actions: Blow down the water. Check for sea water ingress in the system and rectify same before putting the boiler back in operation. 5. Auxiliary boiler feed water turbine pump breakdown. Causes: Low feed water pressure alarm. Pump is not building pressure

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Marine Boiler System Quiz | Vocabulary Quiz - Quizizz

Marine Boiler System Quiz DRAFT. 11th - University grade. 38 times. English. 62% average accuracy. 4 years ago. murtho. 0. two float switches which measure salinity and chloride in the water. Tags: Question 9 . SURVEY . 120 seconds . dumps surplus steam at high pressure to the boiler . dumps feed water at high pressure into the exhaust

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Boiler Water Treatment – Marine Study

By Maklub Al Mostofa Scale formation and corrosion are the main two factors that determine the efficiency of the internal parts and as well as lifetime of the boiler. Badly corroded and scaled boiler can fail within very short time. SCALE FORMATION IN BOILER Depending upon the sources boiler water contains various types of salts and impurities. Under operating conditions

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MARINE ENGINEERING, SELF EXAMINER- BOILERS --

2011-11-29 · 54.Classification societies require that when initially fitted to a boiler, safety valves must be subjected to a test of accumulation of pressure. Is this to: See how high the boiler pressure will go before the safety valve operates.

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Marine Fresh Water Generators - SlideShare

2018-6-29 · One for the high pressure sea water (ejector pump discharge), one for the low pressure (LP) suction entrained and one for the medium pressure discharge. 2) The suction (in this case air or brine) comes in at the side. 3) There is a nozzle for converting the pressure energy of the high pressure motive into kinetic energy.

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Boiler Operations Part 2.1.pdf - MARINE BOILER

The system consists of a boiler feed water tank, also known as cascade tank or hot well, boiler feed water pump, condenser, de-aerator and feed water heater. A chemical dosing unit with a separate chemical dosing pump can be installed to automate the chemical treatment process of the marine boiler. Boiler Feed Water Tank/ Cascade Tank: Also known as hot well, it supplies hot water feed to the

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Salinity | Science Mission Directorate

2  · High concentrations (over 37 practical salinity units) are usually in the center of the ocean basins away from the mouths of rivers, which input fresh water. High concentrations are also in sub-tropical regions due to high rates of evaporation (clear skies, little rain, and prevailing winds) and in landlocked seas in arid regions.

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Evaporation rate as a function of water salinity

2002-11-1 · The water salinity varied over a range of 26, 34,000, 56,000 and 69,000 ppm. The measured evaporation rates for each mode of heating the water as a function of water salinity and air velocity are shown in Fig. 3, where the pressure difference is the difference between water pressure at the water surface and water pressure at air.

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MARINE ENGINEERING KNOWLEDGE BY RAJAN -

Increase cut off pressure of boiler. Bypass high pressure cut off of the boiler. Arrange the boiler fire rate to a maximum. Safety valve will be lift during the test. The test is carried out as long as the water permits in the boiler. Accumulation pressure should not exceed 10% of working pressure in the specified time.

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chloride is found too much in boiler Archives - Marine

Increase cut off pressure of boiler. Bypass high pressure cut off of the boiler. Arrange the boiler fire rate to a maximum. Safety valve will be lift during the test. The test is carried out as long as the water permits in the boiler. Accumulation pressure should not exceed 10% of working pressure in the specified time. Specified time is 15

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Operating Procedures of Marine Boiler - MirMarine

2020-12-2 · When the boiler pressure is reduced to just over atmospheric pressure, the vent valve is kept open to prevent vacuum formation inside the boiler Emergency shut down of the boiler: A marine boiler is provided with an emergency shut down button located in the local operating panel and engine control room of the ship.

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Marine Engineering 360: Questions & Answers (Boiler)

2020-10-23 · Medium pressure boiler 10 to25 kg/cm 2. High pressure boiler over 25 kg/cm 2. 4. Explain the difference between fire tube & water tube boiler. High salinity. 5. Fuel temp. high or low. 20. Indication of soot blow is done. 1. Shoot will come out through the funnel. 2. If steam is used for soot blowing steam press. In a marine boiler, oil

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Marine Composite Boiler For Ships - iffw-ev.de

Marine Boiler from China, Marine Boiler Manufacturer » Marine Boiler As one of the best marine and offshore equipment suppliers and manufacturers,Deyuan Marine supply wholesale marine parts and accessories,marine boats suplies for sale,kinds of new ships,etc.We promise you high quality marine equipment and reasonable price,you can trust us

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BOILERS - 1. When a boiler is brough-jan.10-11,2004

View BOILERS - 1. When a boiler is brough-jan.10-11,2004 exam - wa.doc from ENGLISH 101 at Tagum City National High School. FUNCTION 1 – MARINE ENGINEERING 1.8

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Marine Engineering Practice Questions and Answers

2020-10-10 · Find the answers to the questions related to troubleshooting of various machineries onboard like hydrophore system, and they come in Marine Engineering Practice.This is the first article in our series related to the Marine Engineering Practice, in every part we will try to cover 10-11 questions with answers.In places where we think diagram is necessary, we will add that.

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Main Propulsion Plant DD445 and 692 Classes and

2018-2-15 · (f) If opening the drains to the bilge, and to the high pressure and open header drain mains as specified above does not produce a steam How through the superheater equal to or greater than 2.0 inches of water on the superheater protection device, the steam flew through the superheater (assuming boiler No. 1 is being cut in, and No. 2 boiler is

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What Is a Boiler Feed Water Treatment System and

Treating boiler feed water is essential for both high- and low-pressure boilers. Ensuring the correct treatment is implemented before problems such as fouling, scaling, and corrosion occur, will go a long way in avoiding costly replacements/upgrades down the line.

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BOILER QUESTIONS AND ANSWERS - MARINE EBOOKS

2020-5-19 · The important thing is to heat up the boiler slowly so all parts of the boiler expand just as much. The leaks occur when some part expands more, or less, than the rest of the boiler. You will be on the safe side if you slowly heat up the boiler to, or almost to, normal operation pressure before you start high

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Marine shipboard Reverse Osmosis system - DieselShip

The high pressure pump supplies the pressure needed to push water through the membrane, even as the membrane rejects the passage of salt through it. Typical pressures used in marine shipboard Reverse Osmosis system. For brackish water range from 225 to 375 psi (15.5 to 26 bar, or 1.6 to 2.6 MPa).

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Boiler Questions and Answers regarding Your Boiler

Question 9. Is it legal to weld on a boiler burner? fire tube boiler 150 hp. The air deflectors have cracked and either need welding or replacing. Answer. Boiler pressure vessels require an A.S.M.E. certified welder. The burner does not, but be careful. Changes in the

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