Chemical water treatment: the essential vitamins required for a “healthy” steam and condensate loop

A steam and condensate loop acts like a living breathing organism; taking in water to produce steam and utilizing that steam for work, then returning a portion of the used steam as condensate to be reutilized.

10/01/2014


A steam and condensate loop acts like a living breathing organism; taking in waterCourtesy of Spirax Sarco. to produce steam and utilizing that steam for work, then returning a portion of the used steam as condensate to be reutilized.

From a chemical perspective, the steam loop requires specific control over chemical constituents and nutrients by a water treatment chemical program that is specifically relevant to each plant.

There are 3 key areas of the steam and condensate loop that require a regular “health check-up”:

1. Feedwater: The Life Blood

One needs to check for hardness and silica to prevent scaling as well as oxygen control and pH to prevent corrosion. It all starts with the feed water quality. It needs to be controlled if the boiler is expected to last and produce high quality steam over the long term.

2. Boiler: The Heart Of The Steam Loop

The “heart” of the steam loop is the boiler. Its ability to continue to efficiently produce high quality steam is what is important. In order to accomplish this, a preventative mechanical and chemical maintenance program is vital to implement. Most prominently, checking to ensure dosing of the correct scale and corrosion inhibitor chemicals in the right quantity and in the right place is imperative. Controlling alkalinity and TDS levels will minimize carryover, and sometimes specialty anti-carryover. As such, foaming chemicals may need to be used. If the boiler is not under control, the steam it produces will struggle to meet requirements both in quantity and quality.

3. Condensate: Feedback On The Body

A lot can be learned about the state of a steam distribution system by testing the condensate. Checking pH can point to evidence of condensate line corrosion or carryover. Checking conductivity will often disclose a level of product contamination. Measuring iron levels in condensate is an essential indicator of both carryover and condensate line corrosion. As a consequence, it is a good indicator of the performance of your condensate protection chemical program.

Constant monitoring of the condensate is critical in assessing the overall performance of one’s water treatment program. Taking action to ensure you get the most from your steam plant is the real key to gains in productivity.

Content provided by Spirax Sarco, originally published in Steam News. Edited by Anisa Samarxhiu, Digital Project Manager, CFE Media, asamarxhiu@cfemedia.com 



The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
A new approach to the Skills Gap; Community colleges may hold the key for manufacturing; 2017 Engineering Leaders Under 40
Doubling down on digital manufacturing; Data driving predictive maintenance; Electric motors and generators; Rewarding operational improvement
2017 Lubrication Guide; Software tools; Microgrids and energy strategies; Use robots effectively
The cloud, mobility, and remote operations; SCADA and contextual mobility; Custom UPS empowering a secure pipeline
Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Power system design for high-performance buildings; mitigating arc flash hazards
Research team developing Tesla coil designs; Implementing wireless process sensing
Commissioning electrical systems; Designing emergency and standby generator systems; Paralleling switchgear generator systems

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
The maintenance journey has been a long, slow trek for most manufacturers and has gone from preventive maintenance to predictive maintenance.
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.
Maintenance Manager; California Oils Corp.
Associate, Electrical Engineering; Wood Harbinger
Control Systems Engineer; Robert Bosch Corp.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me