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Bluewav Technology Co.,Ltd

Products >> Sodium_Hypochlorite_Generator (Seawater) >> skid mounted electrolysis seawater chlorine production system

Product Description

The BLV-RNH series electrolytic seawater type sodium hypochlorite generator produced and developed by BLUEWAV Technology Co., Ltd.

In order to inhibit the growth of microorganisms and organic matter in the water to form mud scale in the circulating water pipeline, which will reduce the water flow and reduce the heat exchange efficiency, the treatment method of adding sodium hypochlorite to the cooling water is adopted. The electrolytic seawater sodium hypochlorite generator uses natural seawater and adopts high-speed electrolysis to prepare high-activity sodium hypochlorite solution on site. The sodium hypochlorite solution is transported to the dosing point as a biocide through dehydrogenation storage, effectively killing microorganisms, sea creatures, algae and crustaceans in the water body, and preventing the blockage of circulating water pipelines and condenser systems.

 

Principle summary of sodium hypochlorite generator

The main reaction process of sodium hypochlorite generator electrolysis can be expressed by the following equation:

NaCl+ H2O = NaClO + H2↑

Electrode reaction: anode: 2Cl--2e- → Cl2 cathode: 2H2O + 2e- → H2 + OH-

Solution reaction: 2NaOH + Cl2 → NaCl + NaClO + H2O

The electrolysis process of the electrolytic seawater type sodium hypochlorite generator is an electrochemical reaction process, which uses seawater and electricity as raw materials to make sodium hypochlorite solution. Although the chemical principle is simple, there are many technical indicators that affect the economy. Therefore, the design of the electrolysis electrode of the sodium hypochlorite generator should consider various factors, according to the compact and reasonable structure, energy-saving operation, convenient operation and maintenance, high operational reliability, and long equipment life. And other characteristics to design and manufacture. The sodium hypochlorite solution is accurately dosed, safe to operate, easy to use, easy to store, non-toxic to the environment, and there is no air leakage, and it can be dosed under any environmental working conditions.

Electrolysis seawater sodium hypochlorite generator CHINA&UAE

Skid sodium hypochlorite generator CHINA&UAE
Skid mounted sodium hypochlorite generator CHINA
&UAE

Design standards

Basic reference design standards for coastal power stations:

GBT 22839-2010

Technical conditions of electrolytic seawater sodium hypochlorite generator

JB/T 2932-1999

Technical conditions of water treatment equipment

GBT 50050-2017

Design code for industrial circulating cooling water treatment

DL 5068-2014

Technical Regulations for Chemical Design of Thermal Power Plants

DL 5054-1996

Technical Regulations for the Design of Steam and Water Pipelines in Thermal Power Plants

GB 6450-86

Dry-type power transformer

GB 3859-93

Semiconductor power transformer

GB 3956-97

Copper and aluminum conductive cores of wires and cables for power installations

GBJ 87-1985

Design code for noise control of industrial enterprises

HG/T 20538-2016

Plastic lining (PP, PE, PVC) steel pipes and pipe fittings

 

System composition:

 

Seawater booster pump set

The seawater booster pump set provides the power source for the seawater filter and the back-end process to overcome the pressure drop.

Sea water filtration system

Filter seawater to micron level to prevent large particles from entering the electrolytic cell group and affecting the electrolysis process.

Electrolyzer group

The electrolytic cell group is the core unit of the whole set of equipment. The electrolytic cell group adopts titanium-based ruthenium and iridium rare metal oxide coating. The seawater passes through the electrolytic cell group through direct current catalysis to convert seawater's sodium chloride into sodium hypochlorite and hydrogen.

Rectifier transformer

Usually a rectifier transformer in the form of a silicon controlled rectifier is used, the voltage is changed to the required voltage through the transformer, and then a thyristor is used for controlled rectification. The input AC power is converted into DC power and the positive and negative poles provide power source and output to the electrolytic cell.

Storage and dehydrogenation tank

The generated sodium hypochlorite solution and hydrogen enter the storage and dehydrogenation tank through the pipeline for temporary storage and dehydrogenation process.

Dehydrogenation fan unit

The wind unit generally adopts the 1D+1S form, which blows a large amount of air into the storage and dehydrogenation storage tank to dilute the produced hydrogen and provides a power source to discharge the diluted hydrogen to a safe discharge point.

Dosing pump set

Use corrosion-resistant centrifugal pump to output to the dosing point.

Pickling system

The raw material is diluted with 31% hydrochloric acid and used for acid washing of the temporary storage power supply solution tank group to remove the scale of the electrolytic tank group.

Control System

The central control system of the complete set of equipment is used to control the automatic start and stop of the complete set of equipment and coordinated control with the outside.

Power distribution system

Allocate power sources for motors and related electrical drive equipment.

Optional accessories

The default standard configuration of PPE electrolyzer 1. Mesh type electrolyzer (MESH) 2. Concentric circular tube electrolyzer (CTE)

 

 

Application areas:

Electricity

Sea water lifts structures and kills marine life

Circulating water treatment

Industry

Petroleum and chemical circulating water treatment


Technical Parameters

Index

Unit

National standard(A)

Ourui standard

Power Efficiency

%

75

92

DC power consumption

kW.H / Kg.Cl2

4.5

3.4

Chlorine evolution potential

V (S.C.E)

1.13

1.04

Anode enhanced life test

Hr

30

100

Cathode service life

Y

20

Never damaged

Pickling cycle

D

30

36

Site layout size

Consult local business personnel

Flow Chart


 
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