why steam condensate should be returned to the boiler

Condensate Return Pumps and Boiler Feed Units | Boiler ...

Boilersupplies.com boiler feed & Condensate Return systems help maintain peak efficiency and prolong the life of boilers where investment in a deaerator cannot be justified. Consisting of one or more feed & condensate return pumps and any type of Receiver tank needed …

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Steam and Condensate - What is Steam and the ... - Piping

Due to the good Heat Transfer saturated steam is better for Heat Transfer (heating of Heat Exchangers saturated steam should be used). Flash steam Flash steam is released from hot condensate when its pressure is reduced. Even water at an ambient room temperature of 20°C would boil if its pressure were lowered far enough.

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Why you need to treat your steam generation systems? – Akvante

Nov 22, 2017· Scaling or corrosion products (iron oxides) on boiler tubes; Carryover of water droplets in the produced steam (reducing the heat capacity of the produced steam) Low temperature of boiler feedwater (if condensate is lost and not returned to be used as boiler feedwater, due to condensate water quality issues)

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Reasons why the condensate- or boiler-feed pump is ...

When you have a condensate pump, you no longer have a gravity-return system. Should a return spring a leak, the boiler water can't back out of the boiler because of the condensate pump's check valve. Should the check valve fail, boiler water will back into the condensate pump. The pump will turn on and pump the water back into the boiler.

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Boilers | NaturalGasEfficiency.org

A Steam Trap is used to keep steam in the radiator and allow condensate to drain out and return to the boiler. Steam valves are located on the top/entrance to the radiator, and steam traps are located on the bottom/exit of the radiator (in 2 pipe systems).

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Best Practices for Condensate System Piping - Plant ...

Condensate contains a relatively large percentage (16 percent in some cases, depending on pressure) of the energy used to produce the steam. With today’s rising energy costs, facilities must return all possible condensate back to the boiler plant. The condensate should be maintained in a high-energy state or simply as hot as possible.

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Reasons why the condensate- or boiler-feed pump is ...

Should a return spring a leak, the boiler water can't back out of the boiler because of the condensate pump's check valve. Should the check valve fail, boiler water will back into the condensate pump.

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Sizing boiler feed units vs. condensate return units ...

In most systems that have both condensate return and boiler feed units, NPSH is less of a factor for the boiler feed unit, because the feed unit occurs later in the system. Sufficient sub-cooling has occurred, and the NPSHA (available) is sufficient to avoid pump cavitation.

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Introduction to Condensate Recovery | TLV - A Steam ...

Condensate is the liquid formed when steam passes from the vapor to the liquid state. In a heating process, condensate is the result of steam transferring a portion of its heat energy, known as latent heat, to the product, line, or equipment being heated.

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How to size a condensate return unit - Xylem Applied Water ...

Condensate return units are designed to collect the returns and move the condensate along quickly and efficiently, minimizing heat loss and thus the energy required to heat it back to steam. With prices for light sweet crude hovering around $50 to $60 a barrel, saving energy can put a …

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Steam and Condensate - A basic overview of a steam system ...

Once the steam has been employed in the process, the resulting condensate needs to be drained from the plant and returned to the boiler house. Pressure reduction As mentioned before, steam is usually generated at high pressure, and the pressure may have to be reduced at the point of use, either because of the pressure limitations of the plant, or the temperature limitations of the process.

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Why does the steam need to be condensed after it flows ...

Apr 06, 2018· Steam boilers receive boiler feed water, consisting of fresh make-up water, returned condensate and certain treatment chemicals. These must all be in liquid form to be pumped into the boilers under-fire.

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Boilers | Why return condensate to the boiler? The best ...

With high energy costs, you must return as much condensate as possible to the boiler plant for reuse. The benchmark for optimal condensate return is as high as 90%. This is possible if the plant doesn’t use direct steam injection for process applications.

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Sizing boiler feed units vs. condensate return units ...

Dec 11, 2017· Condensate return units are generally smaller, fitting their function of collecting steam condensate and pumping it back into the system before too much energy (heat) is lost. Returning condensate can fill the smaller tank quickly, triggering a pumping cycle.

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Steam condensate return pump — Heating Help: The Wall

Feb 01, 2013· I maintain a steam boiler at our local Catholic school. My charity work. I have been having problems with leaking pumps for the last 3-years on the Hoffman condensate return tank.

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Condensate Water Treatment: Because Steam Boiler Pipes Are ...

Returning the condensate back to the boiler saves water, but more importantly, it saves fuel. If condensate is not returned to the boiler, then the boiler needs to have fresh water introduced, which needs to be pre-heated, which burns fuel.

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Campbell-Sevey, Inc. | Steam Tip 8: Return Condensate to ...

When steam transfers its heat in a manufacturing process, heat exchanger, or heating coil, it reverts to a liquid phase called condensate. An attractive method of improving your power plant’s energy efficiency is to increase the condensate return to the boiler.

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A quick guide to condensate recovery - Plant Engineering

Oct 28, 2013· Why return condensate and reuse it? There are too many advantages to return condensate, the list below is just a few reasons that might just get you started. Financial reasons: Condensate is a valuable resource and even the recovery of small quantities is often economically justifiable. The discharge from a single steam trap is often worth recovering.

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Steam condensate return pump — Heating Help: The Wall

I maintain a steam boiler at our local Catholic school. My charity work. I have been having problems with leaking pumps for the last 3-years on the Hoffman condensate return tank.

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Say “no” to suction strainers for condensate return and ...

Condensate return and boiler feed unit specifications frequently call for a strainer to catch particles that could damage pumps. Basket strainers or “Y” strainers are equally effective, as long as they’re properly located and maintained. Suction strainers, on the other hand, aren’t a good idea.

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