Corrosion and deposition play a major role in destabilizing power plants. They reduce not only the efficiency of the power plant, and thereby the output, but also the effective life. The various impurities in steam and water such as (specific, cation and degas) conductivity, pH, dissolved oxygen, silica, phosphate, sodium and chlorides result in corrosion and deposition, which can finally lead to failures or unplanned shutdowns.

Why Steam and Water Analysis Systems ?

Steam and Water Analysis is very important for corrosion control. Impure steam and water can also affect process efficiency. A good steam and water analysis system (SWAS) helps personnel keep a watch on critical parameters and enhance the life of critical equipment like pressure parts, heat exchangers and turbines. It also helps reduce maintenance costs and downtime. However, a large number of plants and boiler users either don’t have online steam and water analysis systems, or the systems they have are complicated to operate.

Challenges that plants face with Steam and Water Analysis Systems

- Large size complicated systems.

- Not ergonomically designed, hence difficult to maintain.

- Stage wise upgradation not feasible hence large investments required at the time of upgradation.

- Additional manpower required for regular maintenance and calibration of the analyzer.

- Large footprint of sampling system due to numerous sampling components.

QSWAS ™

The QSWAS ™ is modular sample handling system from Forbes Marshall provides a solution to all these challenges. Designed in line with ASME PTC 19.11-2008 Standards, this system has multiple components assembled together on modular structures making it is easy to install, operate and maintain.

Components of the QSWAS

1. Sample coolers designed in line with ASME PTC 19.11-2008 and ASME Section VIII standards.
Both mechanical and thermal designs for these coolers are validated by a third party.

2. Rod-in-tube type pressure reducers which serve a combined function of pressure reduction and flow modulation to be used with a back pressure regulator.

3. Mechanical temperature shut off valve which ensures protection against temperature overshoot

4. Degas conductivity measurement system to optimize the CO2 removal process for conductivity measurement in ultrapure water applications

5. Versatile controller single or dual channel for pH, Redox, Conductivity, and TDS

Benefits of the QSWAS

The QSWAS ™ is a completely customizable solution that gives users complete design flexibility and easy expansion to suit ever changing requirements.

1. Smaller Foot Print : Less space more utilization.

2. Easy to Maintain : All components of QSWAS™ are easily accessible from both sides of the SWAS Panel.

3. Quick Installation : Standard modular design helps cut lead time for fabricated panels and also integrates complete functionality.

4. Expandable : Possible to add more sample or analyzer lines at any point to meet growing requirements

5. Layout Flexibility : Modular design for layout ?exibility. The SWAS room can be customized according to available space and utility connections.

6. Minimal Infrastructural changes : No major infrastructural changes are required when replacing existing systems with the QSWAS ™ .

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QSWAS ™