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Sea Water Electrolysis Sodium Hypochlorite Generator for Cooling Tower

Sea Water Electrolysis Sodium Hypochlorite Generator is used electrolytic principle, it works through by on-site electrolysis of seawater to produce sodium hypochlorite solution, and automatically dosing into the feed seawater to eliminate algae and microorganisms, thus prevent the biofouling in the seawater system (such as cooling circuits, intake pipes and heat exchangers). 

  • Power Consumption4.5kw/kg Cl2
  • ApplicationPower plant, cooling tower, sea water farming
  • Salt Consumption-
  • AdditiveSea water
  • Chlorine concentration2000ppm
  • ControlAutomatic control
  • Output Flow5000L/h
  • Capacity10kg/h
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 Sea Water Electrolysis Sodium Hypochlorite Generator for Cooling Tower

Working Principle

Sea Water Electrolysis Sodium Hypochlorite Generator for Cooling Tower is generating sodium hypochlorite through the electrolysis of seawater is a cost-effective and safe method to eliminate algae and microorganisms and prevent the biofouling. Sodium hypochlorite is a versatile oxidizing agent that can be generated and used on-site.

 

• Basic reactions occurring in the electrolytic cell:

At the anode, chlorine gas is evolved:

2Cl- = Cl2 + 2e- _________________ ①

At the cathode, hydrogen gas is evolved:

2H+ + 2e- = H2 __________________ ②

 

The Cl2 evolved at the anode dissolves in the electrolyte to form HCl and HOCl. Since there is no membrane between the anode and the cathode, the H2 evolved at the cathode and generates OH-, which combines with the H+ produced by dissociation to form H2O and NaOCl, thus completing the homogeneous secondary chemical reaction. The overall reaction is:

NaCl + H2O → NaOCl + H2

 

 

 

  Industrial Biofouling Control

Purevita seawater electrochlorination systems are a reliable and economic solution for industrial biofouling control. The electrochlorination process is simple and straight forward, combining three common consumables (salt(sea water), water and electricity) to generate a disinfecting agent. SANILEC systems can be provided in any capacity to meet customer and application-specific needs. 

 

On-site generation of sodium hypochlorite is an economical and safe method to produce a powerful biocide and disinfecting agent for use in industrial applications. When injected into the cooling water circuits of electric power stations or industrial plants, on-site generated sodium hypochlorite provides efficient protection to the equipment against the growth of micro and macro organic fouling. This occurs without the undesirable side effects of commercial hypochlorite, such as the build-up of hard deposits by reaction of excess alkalinity with the substances dissolved in water or the safety hazard connected with the transportation, storage and handling of chlorine gas. The technology eliminates dependency on outside suppliers and the heavy costs of purchased commercial products.

 

 

 Features & Benefitstures & Benefits


  • Superior Design
    –Optimum cell design – not too big or too small
    –Minimal operation and maintenance requirements
    –Once-through flow design eliminating recycle requirements
    –Use of corrosion-resistant materials of construction
    –Customized layout and supply to meet site-specific requirements
    –Guaranteed lowest power consumption

  • Safety
    –Low-strength sodium hypochlorite solution is non-hazardous, safe and easy to handle
    –Systems designed for low voltage requirements: less than 50 volts DC
    –Automatic operation eliminating the potential for operator error
    –Designed for hazardous areas, if required
    –Safe hydrogen removal process

  • Reliability
    –Active life of the DSA® anode is guaranteed
    –Anodes can be recoated
    –Long operating life with minimal downtime
    –Control system ensures proper and safe operation
    –Eliminates dependence on chemical suppliers 

  • Service
    –Installation and construction consultation available
    –Experienced service staff for start-up and commissioning
    –Maintenance and service agreements available
    –Single source for supply of spare parts
    –Training services available
    –Pre-project consultation available for budgetary capital estimates, project feasibility studies, equipment selection and specification and proposal evaluation

 

System Specifications

Model GTH-1000 GTH-2000 GTH-5000 GTH-10000 GTH-20000 GTH-40000
Available chlorine(kg/h) 1 2 5 10 20 40
NaClO Output flow(L/h) 500  1,000  2,500  5,000  10,000  20,000 
NaClO concentration(mg/L) 2,000  2,000  2,000  2,000  2,000  2,000 
Power supply(kw) 6 12 30 60 120 240
Voltage 380V/50hz three phase 380V/50hz three phase 380V/50hz three phase 380V/50hz three phase 380V/50hz three phase 380V/50hz three phase
Additive 2.5~3% 2.5~3% 2.5~3% 2.5~3% 2.5~3% 2.5~3%
Feed water flow (L/h) 500  1,000  2,500  5,000  10,000  20,000 
Salt Consumption 3.5kg/kg Cl2 3.5kg/kg Cl2 3.5kg/kg Cl2 3.5kg/kg Cl2 3.5kg/kg Cl2 3.5kg/kg Cl2
Power consumption 5kw/kg Cl2 5kw/kg Cl2 5kw/kg Cl2 5kw/kg Cl2 5kw/kg Cl2 5kw/kg Cl2
Cell arrangement Horizontal Horizontal Horizontal Horizontal Horizontal Horizontal
H2 production amount 0.35m3/kg Cl2 0.35m3/kg Cl2 0.35m3/kg Cl2 0.35m3/kg Cl2 0.35m3/kg Cl2 0.35m3/kg Cl2
Number of Cell 1 pcs 2 pcs 2pcs 2pcs 4pcs 4pcs
Operation pressure 2~4bar 2~4bar 2~4bar 2~4bar 2~4bar 2~4bar
Feed water temperature 15~25℃ 15~25℃ 15~25℃ 15~25℃ 15~25℃ 15~25℃
Cleaning mode Acid washing Acid washing Acid washing Acid washing Acid washing Acid washing

 

 

Application

  • #
    Power Plant
    Industrial facilities located on coastlines—including thermal power plants (utilizing fossil fuels or nuclear energy) and Oil & Gas/Petrochemical installations—frequently rely on seawater as a coolant. Sodium hypochlorite, generated by electrochlorinating seawater, is commonly dosed into the cooling water intake structure and basin to inhibit biological growth and fouling, thereby preserving high operational efficiency
  • #
    Sea water Aquaculture
    Sea water aquaculture requires disinfection of seawater by adding chlorine, and obtaining sodium hypochlorite through electrolysis of seawater can greatly reduce the purchase cost of chemicals
  • #
    LNG Terminals
    The primary mode of transporting Liquefied Natural Gas (LNG) is via specialized tankers. The liquefaction process, a critical pre-loading step, utilizes chlorinated seawater as the cooling medium to reduce natural gas to its liquid state. Conversely, upon unloading at the receiving terminal, chlorinated seawater is repurposed in the regasification process, where it serves as the heating medium to convert LNG back into its gaseous form for distribution. This closed-loop utilization of chlorinated seawater exemplifies the industry's commitment to efficient resource management throughout the LNG supply chain.
  • #
    Sea Water Desalination
    In a typical desalination plant, sodium hypochlorite—generated directly from seawater—is injected into the intake structure to against organic fouling, effectively protect the equipment from biological growth and operational disruptions. Post-desalination, a secondary application of brine-derived sodium hypochlorite ensures precise control of chlorine residuals in the treated water. To maintain these residuals throughout the distribution network, supplementary brine-based electrochlorination systems are integrated at each pumping station, enabling consistent chlorine levels as drinking water traverses the extensive pipeline infrastructure.

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Product Tags Sea Water Sodium Hypochlorite Generator          None Membrane Electrolysis Sodium Hypochlorite System          Skid Type Onsite EC System          2000ppm Electro Chlorination System          horizontal arrangement cell chlorine generator          large scale generator sodium hypochlorite         

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