The biggest challenges modern day power plants have to face are: depleting natural resources, fluctuating demand, reducing land space, and strict emission norms. In numerous facilities today there is an emphasis on clean water chemistry. When we picture this scenario, we deduce that making the processes efficient will be the key. Hence the demand of the ancillary equipments that enhance the efficiency will be on an upward spiral.

Condensate Polishing Units

There are various areas in power plants where optimizations can help save resources, reduce the costs, and increase the equipment life. One such place is where the condensate re-enters the system. In most of the large scale plants, condensate is re-utilized to reduce the need of the make-up water. But it is often found to be contaminated by dissolved and suspended impurities which can scale or corrode the turbines and boilers. The answer to this issue is: Condensate Polishing Units.

The Limitation of Condensate Polishing Units

Condensate Polishing Units, also called Condensate Polishers, are in essence the tanks filled with beds of ion exchange resins. These resins, through ion exchange reactions, remove the dissolved impurities like chloride, sodium, silica, etc. The condensate, along with the dissolved impurities, also comprises of suspended impurities. These suspended impurities are collectively referred to as ‘crud’. The crud when traverses through the vessels of condensate polishers, it gets trapped within the beds of resins. So, while it gets removed, it builds the differential pressure. On hitting the set level of differential pressure, the resin has to be regenerated. So, the presence of crud can increase the frequency of regenerations, which would increase the overall costs and the discharge of wastewater. Hence, there is a need for a system that can handle suspended solids. The most ideal way to deal with this challenge is to opt for a cartridge filter system.

Gopani Clarypleat CPU Filters for Condensate Polishing Units

Clarypleat CPU is a brand of cartridge filter produced especially for filtration systems of condensate polishing units. These are high-efficiency pleated type filters, made up of polypropylene, with larger surface area and higher dirt holding capacity. They don’t contain any surfactants or binders, hence there is no possibility of leachables or media migration. If your need is of a very high efficiency filtration system, these are the filters you are looking for.

Reasons for Employing Gopani Clarypleat CPU Filters for Condensate Polishing Units

1. They are highly efficient.
2. Larger surface area allows higher flow rates at reduced pressure loss.
3. Greater dirt holding capacity leads to reduction in overall costs.
4. Entirely made up of polypropylene, hence good thermal resistance, and wider chemical compatibility.
5. Available in a wide range of porosities, 0.2 to 50 microns.
6. All the components are sealed by advanced thermal welding techniques.

Specifications of Gopani Clarypleat CPU

1. Filter Media: Pleated Polypropylene
2. Length: 60 inch and 70 inch
3. Filtration Rating: 1, 5, and 10 microns (absolute)
4. Max. Forward Differential Pressure: 3.0 bar @ 65 degrees C
5. Max. Reverse Differential Pressure: 2.0 bar @ 20 degrees C
6. Temperature Rating: Max. 82 degrees C

Source: Gopani Product Systems

Email: info@gopani.com

Linkedin: https://in.linkedin.com/company/gopani-product-systems

Facebook: https://www.facebook.com/gopanifiltration/

Ahmedabad – Gopani Product Systems, a leading manufacturer and supplier of filtration systems, offers pre-filtration systems for condensate polishing units to enhance their performance and service life. We carry with us over 25 years of experience, and hence the expertise, to offer world-class systems for critical filtration needs.

Condensate Polishing Units save your turbines and boilers from scaling and corrosion and hence ensure their efficiency and longer service life. But to enhance the performance and life of your condensate polishing units, you need to protect them from suspended solids. Gopani’s filtration systems are the finest solution for ensuring safety of your polishing units.

What are Condensate Polishing Units (CPU)?

The modern-day power stations are focussed on making the optimum utilization of resources. Hence, the two factors of utmost importance are: efficient performance and longer service life of the equipments. This has lead to the increase in usage of Condensate Polishing Units (CPU). These units purify the condensed water before it re-enters turbines and boilers, thereby saving them from scaling and corrosion. Most of the polishing units have beds of resins that, through ionic reactions, remove the dissolved impurities.

The need of Pre-filters for Condensate Polishing Units (CPU)

While CPUs are good at handling dissolved impurities, they aren’t meant to tackle the suspended solids. More often than not, condensate carries crud along with the dissolved impurities. The suspended impurities coming into water are referred to as crud. These impurities increase the differential pressure across resin bed which leads to premature termination of service cycle. To restart the process, the resin beds need to be regenerated which would take 8-10 hours. Frequent regenerations would lead to higher chemical consumption, higher generation of waste-water, and lower life of resins. All these factors would eventually increase operating costs. The solution to save ourselves from this hassle is pre-filtration.

Pre-filtration Systems for CPU

1. The advantage of using a pre-filter is the increase in service cycle duration of CPU. Without pre-filtration, the system would rapidly see an upsurge in differential pressure and would shut down for the need of regeneration. But with good quality filtration, we can increase the cycle duration as our filter elements will take the load of suspended solids.
2. These filtration systems are essentially housing(s) comprising of cartridge filters. The cartridge filter elements can either be wound or pleated.
3. The filter elements in these systems can be as long as 70 inch. Longer elements would mean compact housings and lesser occupance of area.

1. In many power plants today, there is an insistence on having clean water chemistry. In such situations the load on CPU is high, which makes it mandatory to have a pre-filtration system for an obstacle-free operation.
2. Earlier power stations used to operate on base-load basis, but now most of them have shifted towards variable-load operation due to the fluctuating power demand. The latter leads to the generation of more crud which puts more pressure on pre-filters. Add to it, the filtration systems are designed as per the old conditions. To cope up with the new load, they need to be retrofitted.
3. In areas with water scarcity, the air-cooled condensers are being adopted. These power stations operate at higher condensing temperatures and generate more crud as compared to the water-cooled condensers. So, in those situations, the usage of pre-filters becomes inevitable.

Filter Elements Offered by Gopani

Gopani Clarypleat CPU

Read more about Clarypleat CPU: https://gopani.wpstaging.amura.incartridge-filters/pleated/clarypleat-cpu/

1. Filter Media: Pleated Polypropylene
2. Length: 60 inch and 70 inch
3. Filtration Rating: 1, 5, and 10 microns (absolute)
4. Max. Forward Differential Pressure: 3.0 bar @ 65 degrees C
5. Max. Reverse Differential Pressure: 2.0 bar @ 20 degrees C
6. Temperature Rating: Max. 82 degrees C

Gopani Clarywound CPU

Read more about Clarywound CPU: https://gopani.wpstaging.amura.incartridge-filters/wound/clarywound-cpu/

1. Filter Media: Wound Polypropylene on a Steel Core
2. Length: 60 inch to 70 inch
3. Filtration Rating: 1, 5, and 10 microns (nominal)
4. Max. Forward Differential Pressure: 3.0 bar @ 65 degrees C
5. Temperature Rating: Max. 82 degrees C

Salient Features of Gopani Filters

1. Gopani filters can be directly installed into your existing housings. No changes are needed. For a new system, we can also build high quality housings.
2. Up to 70 inch long filters are available. Long elements are a necessity when dealing with high flow or high contaminant application. Longer the element, lesser will be the floor-space requirement.
3. Compatibility with wide range of chemicals.
4. Clarypleat CPU comes with a complete polypropylene structure. Its pleated construction offers large surface area.
5. Clarywound CPU, due to its construction, offers true depth filtration and hence higher particle removal efficiency. Its stainless steel core can withstand higher differential pressure

  Source: Gopani Product Systems

Email: info@gopani.com

Linkedin: https://in.linkedin.com/company/gopani-product-systems

Facebook: https://www.facebook.com/gopanifiltration/