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Nationwide Boiler Provides Immediate Rental Boiler Solution to Local Refiner

Nationwide Boiler Provides Immediate Rental Boiler Solution to Local Refiner

When a refiner needs equipment during a planned outage or on an emergency basis, timing is critical. Nationwide Boiler understands that supplying the right equipment at the right time is key in keeping our customers running and we are determined to stock a wide variety of rental boiler equipment ranging in sizes from 47.5 HP mobile boiler rooms to 120,000 lb/hr trailer-mounted watertube boilers.

At the beginning of March, Nationwide Boiler sent three 70,000 pph trailer-mounted rental boilers, two mobile feedwater systems, and three CataStak™ SCR Systems to a large refinery in California. This is one of nearly ten projects we have had with this facility in past years.

The original inquiry called for two boilers, feedsystems and CataStak SCR’s and the equipment was required fairly quickly for the rental project. Nationwide Boiler expedited shipment for these boilers to arrive on time for the customer. After shipment, the third boiler and CataStak SCR were requested, and we were able to quickly commission a boiler that had just returned from another rental in order to fulfill the customer’s request. All equipment is now onsite and in operation, and scheduled to remain at the facility through April.

Nationwide Boiler’s rapid response time and superior customer service helped secure the rental for this project. These are just two reasons that Nationwide’s core customer base comes from repeat, satisfied customers.

Read our latest press release for more about how we recently delivered on a fast-track basis to a major CA refinery, and call us today to learn for yourself and become one of Nationwide Boiler’s many satisfied customers! 1-800-227-1966

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Requirements of a Perfect Steam Boiler

Nationwide Boiler is a proud partner and stocking distributor for Babcock & Wilcox (B&W), a boiler manufacturing company that has been around for over a century. The founders of B&W have compiled a list of requirements for the perfect steam boiler, and Nationwide Boiler would like to share them with you:

  1. Proper workmanship and simple construction, using materials which experience has shown to be best, thus avoiding the necessity of early repairs.

  2. A mud drum to receive all impurities deposited from the water, and so placed as to be removed from the action of the fire.

  3. A steam and water capacity sufficient to prevent any fluctuation in steam pressure or water level.

  4. A water surface for the disengagement of the steam from the water, of sufficient extent to prevent foaming.

  5. A constant and thorough circulation of water throughout the boiler, so as to maintain all parts at the same temperature.

  6. The water space divided into sections so arranged that, should any section fail, no general explosion can occur and the destructive effects will be confined to the escape of the contents. Large and free passages between the different sections to equalize the water line and pressure in all.

  7. A great excess of strength over any legitimate strain, the boiler being so constructed as to be free from strains due to unequal expansion, and, if possible, to avoid joints exposed to the direct action of the fire.

  8. A combustion chamber so arranged that the combustion of the gases started in the furnace may be completed before the gases escape to the chimney.

  9. The heating surface as nearly as possible at right angles to the currents of heated gases, so as to break up the currents and extract the entire available heat from the gases.

  10. All parts readily accessible for cleaning and repairs. This is a point of the greatest importance as regards to safety and economy.

  11. Proportioned for the work to be done, and capable of working to its full rated capacity with the highest economy.

  12. Equipped with the very best gauges, safety valves, and other fixtures.

Source: List prepared by George H. Babcock & Stephen Wilcox in 1875

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The Importance of Boiler Safety Valves

If you were to ask what the most common device used in steam boilers to protect from overpressure conditions, the answer would be the safety valve.  The first safety valves were introduced in the early 19th century as result of boiler explosions on ships and locomotives.  Today, a safety valve is a critical and necessary part of a boiler system used to protect human life and property from different situations that may arise including:

•    An imbalance of fluid flow rate caused by inadvertently closed or opened isolation valves on a process vessel.
•    Failure of a cooling system, which allows vapor or fluid to expand.
•    Compressed air or electrical power failure to control instrumentation.
•    Transient pressure surges.
•    Heat exchanger tube failure.
•    Uncontrollable exothermic reactions in chemical plants.
•    Ambient temperature changes.

To learn more about safety valves, their types, selection, installation and sizing, visit the following link: http://www.spiraxsarco.com/resources/steam-engineering-tutorials/safety-valves/introduction-to-safety-valves.asp

This site provides a comprehensive list of tools and resources specific to steam generation and is beneficial for boiler owners. 

If you have additional questions regarding safety valves, give us a call and we’ll do whatever we can to help you understand: 510-490-7100.

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Avoid a "Bad" Boiler Rental Project

During the course of Nationwide Boiler’s almost 50 year history in the boiler rental business, we occasionally involve ourselves in jobs that ultimately do not run as well as we would like.  Often times, though no fault of our own, customers may be unhappy due to the overall project results.  We believe that we can learn from our past mistakes.  It is also important to ask, “How can we avoid these problems?”. 

After a good deal of investigation, we have listed the top five (5) reasons as to “How A Boiler Rental Job Can Go Bad?”.

1.   Inadequate Planning and Budget Allotment
•    advance planning and timing
•    budget for:  rent, freight, installation, weatherization, start-up training, operation, water treatment, dismantling, return freight
•    cushion for extra rental days which may be required
•    emissions testing

2.   Non-Engineered Installation
•    sizing lines, pressure drop calculations, electrical loads
•    permitting issues (emissions, pressure vessel, operating, construction)
•    steam required – gross versus net, average versus peak load
•    extra equipment required such as 2nd header valve, gas regulator, feedwater pump, water softener, safety valve resetting
•    adequate utilities:  water, fuel, electrical, blowdown, drains, instrument air
•    provide loads or means of venting during start-up

3.   Lack of Qualified Operators 
•    training and licensing
•    familiar with controls and type of boiler (watertube versus firetube, package versus field erected, gas versus wood fired)
•    daily logs, regular blowdown and lubrication/maintenance

4.   Poor or Lack of Water Treatment
•    get  professional involvement (Nalco, Betz, Garratt-Callahan)
•    monitor water quality and blowdown rates
•    source of make-up or condensate (get analysis)

5.   Lack of Maintenance
•    users responsibility (treat it like your own)
•    hands on – not hands off attitude

If you are ever in need of a rental boiler, give us a call and we will help you understand what needs to be done to make your next rental project a success.  If you have any questions, email us at: info@nationwideboiler.com.

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