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Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Product Thermal Capacity: 20 - 110 t/h
Working Pressure: 1.25 - 5.3 Mpa
Product Thermal Capacity: 2 – 20t/h
Working Pressure: 1 - 2.5 MPA
Product Thermal Capacity: 4 - 35 t/h
Working Pressure: 1.0 - 2.5 MPA
The same holds true for pH values above 7, each of which is ten times more alkaline (another way to say basic) than the next lower whole value. For example, a pH of 10 is ten times more alkaline than a pH of 9. Pure water is neutral, with a pH of 7.0. When chemicals are mixed with water, the mixture can become either acidic or basic (alkaline).
a. Oxygen scavengers are best fed to the storage section of the deaerator or feedwater tank. In most low pressure industrial boiler systems, if oxygen remains in the feedwater and enters the boiler, it is too late to remove all of the oxygen and protect the boiler and condensate from oxygen corrosion.
Jul 17, 2017· If your house has water pipes running through it as a form of heat, then you have a boiler. The boiler is usually located in the basement of the house. When the thermostat calls for more heat, the boiler will kick on and warm the water that flows through the heating pipes.
The consensus is that feedwater oxygen, iron, and copper content should be very low (e.g., less than 7 ppb oxygen, 20 ppb iron, and 15 ppb copper for a 900 psig boiler) and that pH should be maintained between 8.5 and 9.5 for system corrosion protection.
Dec 31, 2016· About Our Blog. Clarity’s Water Treatment blog is dedicated to topics having to do with the water treatment industry. We cover popular water treatment topics that include boiler water, cooling water, and waste water treatment; as well as related topics like odor control, smart release technology, cooling tower cleaning, legionella remediation and environmentally friendly water treatment options.
Only mechanical carryover is affected by boiler design. Noninteractive gases such as nitrogen, argon and oxygen carry over almost entirely with the steam, having no relationship to moisture carryover. Excessive steam impurity concentrations can also be caused by feedwater and boiler water chemistries that favor volatile species formation.
Under boiler water conditions, bicarbonate decomposes first to carbonate and then to carbon dioxide . The carbon dioxide leaves the boiler with the steam and forms carbonic acid in the condensate system. The sodium that was attached to the bicarbonate reacts to form alkalinity. In all cases it is the boiler water hydroxyl alkalinity, as measured by
The make-up water should always be fed to the feed tank through a deareation tower on the top of the tank. The high temperature in the tank reduces the ability of the water to keep oxygen (and gases in general) dissolved. The oxygen will be forced out of the water and vented away from the system. Supercritical Units, Power Plants
How to find the OH- concentrations and pH of water at 50 degreesMay 01, 2019Why water boiler is acidic?Oct 25, 2018What is the reason for keeping a boiler feed water pHAug 05, 2018Will dosing a boiler with sodium phosphate affect the pHMar 04, 2017See more results Start studying Boiler Water/ Feed Water. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Boiler water quality is of prime concern to all boiler operators. The process of water treatment in boilers is not limited to producing high quality DM water. The stringent water chemistry requirements of Supercritical power plants makes water treatment in boilers a very critical aspect of power plant operation. This necessitates the use of a high quality water treatment system.
The later problem should be avoided by the use of alkalinity builders dosed into the hotwell or boiler shell. Offending hardness salts should be removed only by softening the make-up water (or the feed water if condenser leakage is the source of contamination).
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