Nationwide Boiler Inc

Rentals Sales Service
24/7 Emergency Assistance
Emergency Preparedness Guide

Boiler Blog | Nationwide Boiler

Posted on

Every year when winter arrives, Nationwide Boiler takes extra care to inform customers of the importance of protecting their equipment in severe weather conditions. With colder weather, especially temperatures that are freezing and below, extra protection on rental boilers is necessary to avoid operational difficulties and costly repairs.

We have compiled a list of freeze protection recommendations to follow this winter for outdoor installations:

  1. Enclose both the front and rear of the boiler area and use an external heat source.
  2. Utilize an appropriate heat tracing method (electric or steam tracing) to all exposed stagnant water lines, as well as the main lines and piping components. This includes sensing lines (steam drum to CMR, high steam, and steam gauge), auxiliary low water cut-off, water column, level control blowdown, and main continuous blowdown (depending on the length of piping runs).
  3. In addition to heat tracing on stagnant sensing lines, drain the lines and fill them with a 50/50 (water/glycol) solution, making sure to re-connect the line.
  4. When an extended boiler down time is expected, or once the equipment is decommissioned and ready to ship back, completely drain the boiler and stagnant water lines.

Also, keep in mind the following:

  • The lines mentioned above are considered stagnant lines and should be heat traced regardless of whether the boiler is in operation or not.
  • The above are recommendations; use sound engineering judgement calls when there are concerns of possible freeze damage to equipment.
  • The lessee is responsible for all freeze damage to rental equipment, so be sure to care for the equipment properly.

When water freezes, it expands and can damage the boiler lines and piping. Know the correct steps and take precaution when operating boiler equipment in inclement weather.

b2ap3_thumbnail_photo-4_20170110-233219_1.JPG

Posted on

Power Engineering Magazine featured an article in their February 2015 edition entitled “Best Boiler Cleaning Practices”. The article outlined a variety of ways that boiler owners and operators can clean their equipment in order to increase efficiency and even reduce emissions.

Slag deposits, or built up ash that acts as insulation on boiler tubes and protects the tubes from heat, will form on a boiler over time if proper cleaning is not performed. When a boiler is filled with slag, it will require more fuel to reach the same temperature and produce the same output as a clean boiler. A clean boiler will perform 1 to 4 percent more efficiently than a boiler with slag deposits, and because less fuel is required for the same amount of power, it will also produce lower emissions.

Boiler owners and operators can choose from the following methods to perform cleaning on their boilers:

  • Acoustic cleaning; utilizing acoustic energy to knock ash off of boiler tubes without risking damage to the tubes
  • Water lances; high pressure water jets or hydroblasting boiler tubes to remove the slag deposits
  • Soot blowers; a component installed with the boiler that uses compressed air, steam or water to keep slag buildup from occurring without having to shut down the boiler
  • Explosives; quick and convenient way to remove slag without the use of water

Some of these methods can be done while the boiler is running, and others will require the boiler to be taken offline. If offline cleaning is performed, a planned outage will take place and a boiler rental will likely be required to keep plant operations running. Nationwide Boiler can supply rental boilers in a number of sizes and types, from 47.5 hp firetube mobile boiler rooms to the world’s largest 120,000 lb/hr watertube trailer-mounted boiler.

Contact Nationwide Boiler at 1-800-227-1966 for more information, and check out Power Engineering’s full article for more details on these boiler cleaning practices.

Posted on

Proper treatment of feedwater is the most important task in operating any boiler. The feedwater is made from a mixture of fresh water and recovered condensed water—or return water—which is purified in a multitude of degrees. When steam is released from a boiler, the minerals and gases contained in the heated water become concentrated and form deposits that become hazardous to the boiler and its connected components. These deposits result in poor heat transfer, reduced efficiency, scale, and biological fouling. Scale that collects and forms inside the boiler has lower ability to transfer heat than steel and will raise the metal tube temperatures, creating blisters and overheating failures. As the gases dissolve, oxygen, carbon dioxide, and ammonia will react with the metals in the boiler system and lead to corrosion.

To protect your boiler from these harmful contaminants, it is vital that proper chemicals, water analysis and blowdown procedures are correctly followed at all times. Contact a local reputable boiler chemical specialist, such as Garratt Callahan Company, for more information on these procedures and requirements.

b2ap3_thumbnail_Feedwater_Importance.jpg

Damage to boiler tubes due to improper feedwater treatment

 

Posted on

The best time to plan for installing a temporary steam plant is before the need actually arises. Being prepared is key not only for emergency outages, but also for planned maintenance, increased capacity demand, and other factors that my call for rental equipment. 

Nationwide Boiler's Emergency Preparedness Plan was created to provide users with guidance through the contingency planning process. Inside you will learn the different types and sizes of boilers available, average boiler weights, fuel and power requirements, and more. 

Download your copy today and get to planning!

b2ap3_thumbnail_Emerg_Prep_Guide.jpg

 

Follow Us On Social Media Twitter Facebook Google Plus Linked In Boiler Blog Watch Us on YouTube