1. Background.
Due to the growth of the world population, the demand for fresh water and electricity will increasesignifcantly than in previous years. Water resources are facing the problem of scarcity, and clear andclean water is also the key to hydropower generation. In boilers, cooling towers and turbines, purewater is the key to ensuring the effcient and reliable operation of the system. When the powerindustry relies on water to produce clean energy, this creates a dilemma.
CHUANYI combines advanced reverse osmosis technology with professional knowledge to protect andrecycle water in a more economical, environmentally friendly, and cleaner way to meet the powerdemand of the increasingly interconnected electronic world. With the increasing maturity of reverseosmosis technology, new solutions have completely changed the way ofwater purifcation, recoveryand reuse,and renewable power generation.
2.Basic Principle of Reverse Osmosis Technology
The physical explanation of permeation is that the water in the solution flows from the lowconcentration side to the high concentration side through the membrane structure, and fnally the flowofwater makes the solution concentration on both sides of the membrane equal.
Reverse osmosis is to apply a certain pressure to make water flow from the high concentration side tothe low concentration side through the membrane structure, while the special membrane structuremakes the salt in the solution not pass through, and fnally separates the salt in the solution from thewater.
CHUANYI has been committed to the development of a reverse osmosis water treatment system. Thefollowing wil introduce its application in the energy and power industry from the aspects ofPretreatment, Boiler Feedwater, Condensate Polishing System, Cooling Tower Blowdown, etc.
3.Pretreatment System of CHUANYI Reverse OsmosisWater Treatment.
Reverse osmosis technology needs a lot of technical equipment support in the actual operation of theplant. At present, the power industry has this technical support and can complete the water treatmentprocess of the power industry. In the whole system process, the system heater maintains the heatingeffect on the water treatment system. On the one hand, it ensures the water output in the reverseosmosis process, on the other hand, it keeps the system water temperature constant, which isconducive to the normal operation of the system.
The water in the initial state enters the pretreatment stage after simple precipitation and fltration. inthe pretreatment stage, the power industry mainly carries out another deep fltration of water quality,including mechanical accelerated clarifer and ultrafltration system.
In the above process, the purpose offltering suspended substances, colloidal substances, andmicroorganisms in water can be realized, and sediment and other deep fltration can be realized withthe support of ultrafltration equipment so that the water pollution index (EDl) entering the reverseosmosis system is less than 5.
The reverse osmosis system of CHUANYI is equipped with a security flter, reverse osmosis membranestack, and other equipment to prevent the scaling of the reverse osmosis system, so as to ensure thelong-term operation ofthe reverse osmosis system.
Although there is a security flter in front of the reverse osmosis inlet to ensure that the membraneelements are not scratched or blocked, the reasonable design and smooth operation of the frontpretreatment system are very important for reverse osmosis. However, more than 70% ofreverseosmosis application accidents in the power industry are related to pretreatment.
The pretreatment system of reverse osmosis water treatment developed by NEWate company cansolve this problem well, and provide the following targeted solutions and suggestions:
Two Layer Filter Material Filter: For the reverse osmosis desalination system of surface watersource, the two-layer flter material flter (generally anthracite and quartz sand) has a large sewageinterception capacity, long operation cycle, slow growth of head loss in operation, and goodapplication effect in practice, ensuring that the reverse osmosis inlet water meets the reguirements.Dosing: Various coagulants are added in the pretreatment to remove suspended solids, colloids, andother impurities in the water. However, if it is not added blindly according to the actual situation ofthe water source, it will not improve the water quality.
4.Condensate Polishing System.
Since high purity water absorbs a lot of heat, it is conducive to removing heat from the generator andbringing it to the generator. Many types of motors and generators will produce a lot of heat duringoperation. Too much heat will destroy them from the inside to the outside.
When the boiler heats water, a large amount of condensate will appear. in order to fully facilitate theevaporated water, we use a condensate receiver(condensate tank) to capture it and send it back to theboiler room for reuse. A condensate polishing system is used as an effective water treatment strategyto save power, energy, and chemical costs. This process can also prolong the service life of boilerequipment and improve its performance.
CHUANYI continues to provide advanced reverse osmosis and industrial water treatment solutions forthe energy and power industry. From pretreatment and boiler feedwater to condensate polishing andcooling tower blowdown systems, our engineers deliver customized solutions that enhance effciencyand reduce operating costs.
