“2017 was a big year for DOB NOW. We released nine additional work types in DOB NOW: Build along with boiler and façade filings in DOB NOW: Safety, and received a combined total of 90,000 filings through both systems. Stay tuned for more updates and additional work-type releases in 2018! Recent Enhancements On January 16, new enhancements were […]
Below are pictures of a recent boiler tube replacement in Brooklyn. During this project we Torched and cut 25 old, corroded bottom boiler tubes (picture 1). Once cut, these tubes are removed from the boiler and the boiler room itself. The boiler vessel and tube drum are then flushed clean. Twenty five new U.S steel […]
Softener Operation A sodium zeolite softener operates through two basis cycles: the service cycle, which produces soft water, and the regeneration cycle, which restores the exhausted resin to capacity. During the service cycle, raw water enters the softener through the inlet distributor, flows through the resin bed, is collected by the underdrain system and then […]
Principles of Zeolite Softening Sodium zeolite softeners use exchange resins made of polystyrene. These resins have sodium ions loosely attached and will readily give up sodium for more desirable ions such as calcium and magnesium. This exchange is only for cations (positively charged ions). This is why sodium zeolite resin is referred to as a cation […]
Softener Application The potential for scale and deposit buildup exists in every raw water supply. The ability of the sodium zeolite softener to reduce this potential effectively and economically makes this an ideal pretreatment for boiler feedwater and many types of chemical process waters. Compared to other softening methods, sodium zeolite units offer many advantages: […]
Good water softener operation is often a key factor in efficient boiler system performance. In its simplest terms, softening is the removal of naturally occurring scale-forming ions that are present in all water irrespective of its source. Although we take it for granted, the operation of a water softener is really a remarkable phenomenon. As […]
One of the key objectives of effective cooling water management is to prevent the precipitation of scale-forming minerals onto heat transfer surfaces. Scaling potential is highest at the hottest metal surfaces, and where the transfer of heat occurs from a process into the cooling water “ across plate/frame or shell and tube exchangers. However, it […]
In an ideal world, all the waterside metal surfaces inside your steam boiler would be exactly 86°F / 30°C above the boiling point when the burner is firing. This would result in perfect boiling everywhere throughout your boiler, maximizing the operating efficiency. While this isn’t fully achievable in the real world, the manufacturer typically designs […]
What’s really interesting is that if you were to crank up the burner to 11 at Step 5 and allow the surface temperature of the bottom of the pot to continue increasing, the heat flux through the bottom of the pan absolutely falls off the cliff. That’s peculiar… despite the fact we’ve added more heat, the heat […]
Since the CMS’s publication of the memo requiring Healthcare facilities to adopt a Water Management Plan and to conduct regular Legionella testing to reduce the risk of Legionella in building water systems in June of 2017, the most common question we get from our clients is “What will the Auditors be asking for?” Well, we […]
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