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Does condensate return need to go through a flash tank prior to a DA tank for a steam boiler system?
In a steam boiler system, condensate return does not necessarily need to go through a flash tank before entering the Deaerator (DA) tank. However, using a flash tank can be beneficial in recovering some heat and reducing pressure, allowing for more efficient use of the condensate. This process can help minimize the amount of makeup water required and improve overall system efficiency. Ultimately, whether to include a flash tank depends on the specific system design and operational requirements.
Why you use boiler in oil refinery?
Use of water in a refinery is makeup for boiler feed. The chief uses of steam are for stripping, steam distillation, and vacuum distillation. The steam comes in contact with the products in these operations, and generally the steam condensate is so highly contaminated that it cannot be reused for boiler feed or for other purposes. Steam is also used for process heating, for pumping, and, in some refineries, for generating electric power
How you can convert natural gas condensate to natural gas volume equivalent?
Veq = 133000*(Condensate specific gr/Mol wt of condensate) in SCF/STB Where, Mol wt of condensate = 6084/(API-5.9)
In boiler feed water line whether a non return valve should precede or succeed the delivery valve of feed water pump?
In boiler feed water line the NRV is normally installed between Pump and stop valve if the line is short and an another NRV is installed at boiler entrance and after stop valve if the line is long or pump is 10 to 15 m away from the boiler.
What is boiler corrosion?
the decay of boiler material by chemical or electrochemical attack by its environment is known as boiler corrosion
What is boiler condensate?
Nobody cares
Why is it desirable to return as much condensate to the boiler as passible?
In order to assure that the boiler has enough make up water to continue w/ normal operations w/ out having to introduce new water to the system that would bring in additional air and impurities that would be harmful to the system.
Does condensate return need to go through a flash tank prior to a DA tank for a steam boiler system?
In a steam boiler system, condensate return does not necessarily need to go through a flash tank before entering the Deaerator (DA) tank. However, using a flash tank can be beneficial in recovering some heat and reducing pressure, allowing for more efficient use of the condensate. This process can help minimize the amount of makeup water required and improve overall system efficiency. Ultimately, whether to include a flash tank depends on the specific system design and operational requirements.
How acidic is the condensate from a condensing boiler?
Condensate from condensing gas boilers has a pH between 3 and 4. Later research has shown that condensate contains nitric and sulfuric acid, strong enough to damage steel, iron and concrete.
In a two pipe system condensate is normally returned to the boiler by?
If its a large steam system which I am assumeing,then a pump or pumps.
A condensates return temperature indicates?
A condensate return temperatures indicates reduced energy losses and disposal costs.
What is the purpose of a cold air return with boiler heat?
None. Probably the home was built for forced air and converted to boiler/baseboard heating.
What is difference between naptha and condensate?
Naphtha is a petroleum condensate, therefore it is a condensate, therefore they are both condensate.
When steam condenses what system does it enter first?
When steam condenses, it typically enters the condensate system first. From there, it may be collected and redirected back into the boiler for reuse in the steam generation process.
What are the two chemical used to prevent corrosion in condensate return lines and explain how they provide protection?
There are two different materials on the market today which are being used with good results. These are the neutralizing amines, and the filming amines. The neutralizing amines are volatile alkaline materials. They are primarily effective against carbon dioxide corrosion, but have very little value in combating oxygen corrosion. In your raw water are naturally occurring bicarbonates. As these pass through the heater and into the boiler they are converted to caustic soda. Carbon dioxide gas is given off as a result of this conversion and it passes out of the boiler with the steam. Carbon dioxide is an acid and it dissolves in the condensate as it is formed. This lowers the pH of the condensate to a point where actual acid attack of the pipe occurs. The neutralizing amines simply neutralize this acid. If soda ash is used for boiler water treatment it too breaks down in the boiler to form caustic soda and carbon dioxide. This simply increases the corrosion problem, and, if you are using a neutralizing amine it increases your cost. Inasmuch as caustic soda is already reverted to the final pro- duct, no carbon dioxide is given off in the boiler. This is of course the ad- vantage of caustic over soda ash. Filming amines actually protect the pipe by forming a thin, non-wetable coating on the surface. This separates the pipe from the corrosive condensate and offers excellent protection from both carbon dioxide and/or oxygen corrosion. The filming amines represent a far better material in almost every case. Not only do they provide better protection, they usually cost less as well! The filming amines cannot be mixed with other chemicals, and pure condensate must be used to prepare the feeding solution. However, the filming amines can be fed to the boiler by means of the boiler feed water. it is not necessary to feed it into the steam line. The filming amines have a strong affinity for iron. Therefore they will clean off all of the corrosion products, dirt, and oil that might be inside your condensate return system. This may give some trouble with plugged traps and strainers until the system is cleaned out.
What is hotwell in thermal power plant?
A hotwell in a thermal power plant is a reservoir or tank that collects condensate from the turbine exhaust steam and other feedwater sources. It helps in recovering and recycling the steam condensate to maintain efficient water circulation in the power plant's boiler system. The hotwell also serves as a storage tank to supply feedwater to the boiler as needed.
How is Gas condensate desulphurised?
The gas condensate is acidic. The acidity in the gas corrodes, therefore, forming sulphurised condensate droplets. Heating desulphurised the gas condensate.
