Flex-Pro® A3V with CHEM-FEED Skid System – Stanton Energy

The “CHEM-FEED” Dual Peristaltic Pump Engineered Skid System manufactured by Blue-White Industries.  The skid consists of two “Flex-Pro” A3 peristaltic pumps, a calibration cylinder and Plast-OMatic components, (e.g., eight True Blue manual ball valves, two diaphragm check valves, a gauge with gauge guard, and a relief valve.)  Skid Model Number:  CFS-2AA-AAAXBA.  Pump Model Number:  A3V24-MNJ.

 

LOCATION:     Southern Company’s Stanton Energy Center located in Orlando, FL.  Stanton Unit A is a natural gas-fueled, combined-cycle electric-generating unit with a capacity to generate 656 megawatts.  The combined-cycle plant includes two natural gas-fired combustion turbines, two heat-recovery steam generators and a steam turbine.

 

APPLICATION:     Injecting 12.5% Sodium Hypochlorite (250 – 300 GPD) into the reuse water to prevent biological build-up within the water tubes of the condenser.   Any buildup within the condenser would greatly reduce the efficiency to produce steam, hence less mechanical power.   In a condensing turbine, the thermal energy of steam is converted into mechanical power, which is converted into electric power by a generator.

 

PREVIOUS METHOD:    Southern Power elected to implement the changeover from Chlorine gas to Sodium Hypochlorite due to cost reducing measures.  Maintaining the liquid gas on site required the full- time support of an Emergency Management Team.  Eliminating the EMT would reduce operating expenses.

 

REASON FOR SELECTING THE PERISTALTIC PUMP TECHNOLOGY:    The peristaltic pump has proven to be far superior to that of any diaphragm pump when injecting gaseous chemicals against moderate to low pressures.  The peristaltic pump maintains a smooth, constant flow rate while eliminating the potential for a vapor lock.  The diaphragm pump is adversely effected by off gassing, hence the potential to lose prime.  However, the peristaltic pump technology allows any excess gas build-up to be pumped through the tubing while maintaining a highly accurate and continual flow.

 

REASON FOR SELECTING THE “CHEM-FEED” ENGINEERED SKID SYSTEM:    The “Chem-FeedSkid System is a quality engineered; compact, efficient design, incorporating a high quality, proven “Flex-Pro” peristaltic pump and Plast-O-Matic components that will maintain the integrity of the skid system’s performance.   The skid encompasses a full chemical feed design that is less expensive and easy to install as opposed to purchasing the components separately and using an in-house engineering team to design and assemble.  In addition, the dual pump “Chem-Feed” model offered an excellent option to an emergency back-up in case down time was required on the primary pump.   Lastly, the local chemical feed skid manufacturers proposed out- dated technology of a diaphragm pump based skid system as well as using components that were far less inferior to the PlastO-Matic components used with the “ChemFeed” System.

 

RESULTS:    Southern Power is extremely pleased with the “ChemFeed” performance since it has been installed in September 2010.  The ease of installation of a UPS delivered chemical feed skid system was a remarkable feature, far exceeding their expectations.  The “ChemFeed” Skid System comprised of the A3 peristaltic pumps should expect to see a minimum of 7000 – 7500 hours of tube life based on previous applications with similar chemicals and pressure ranges of less the 20 PSI.

 

Chem-Pro® C2 – Farming Application

 

 

Case Study for Blue-White Injector at Pierce Farm Center

 

Pierce Farm Center

Los Angeles Pierce College

Woodland Hills, CA

 

We are a 22-acre demonstration farm that functions on an agri-tainment/ educational basis, in the western end of the San Fernando Valley. 2009 was our fifth year of business, but the first time that the farming was done in-house.  As such, we were trying to develop modern and sustainable farming practices for their economic, environmental and educational benefits.

 

All of our crops are grown for fresh market production and sold through our farm market. These crops include bush and cluster tomatoes, sweet corn, summer squash, cucumbers, eggplant, bell and chili peppers, basil and several varieties of pumpkins grown for our Harvest Fest.  We also grow a corn maze planted with field corn.

 

As part of our modern farming practices we almost exclusively used sub-surface drip irrigation to supply water and wanted to take advantage of that by using liquid fertilizer injected through our drip tape.

 

The nitrate portion of a fertilizer is highly susceptible to leaching. This means that excessive levels of nitrogen need to be placed pre-plant if it is to last throughout the season and be available for the plants as they need it, leading to large quantities of nitrate leaching into the groundwater and lost dollars.

 

By using liquid fertilizer in sub-surface drip we were able to minimize our pre-plant dry fertilizer application, and give small doses of nitrogen throughout the season, placing it right around the root zone where it can be of most benefit to the plant.

 

Aside from actual application, our largest problem was that we have multiple crops growing at one time that are dispersed amongst several fields, thus we needed an injection unit that was small, easily moved, yet still maintained a certain level of accuracy.

 

We found that the Blue-White diaphragm metering pump fit the bill. It is light and easily transportable.  The injection fittings were both easy to attach to our riser set-ups and easy to connect to. After figuring out the desired quantity of fertilizer to be applied, it was as easy as pressing a button and knowing that so many gallons per hour were being applied to our fields.

 

Our crops this year were fantastic, our yields were improved, we used 25% less granulated fertilizer and 25% less liquid fertilizer as compared to the previous farmer who used a venturi type pump.