Industrial services

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The important thermal power equipment for power plant operation is an industrial boiler, and water is an important medium for boiler heat conduction. Therefore, industrial boiler water treatment plays an important role in ensuring the efficiency, economy, safety, and operation of the boiler.

According to long-term practice, people realize that the quality of water steam in thermal systems of thermal power plants is one of the important factors affecting the safe and economic operation of thermal equipment (boilers, steam turbines). Natural water that has not been purified contains a lot of impurities, and this kind of water is not allowed to be included in the water vapor circulation system. In order to ensure the quality of water vapor in the thermal system, natural water that has not been purified must contain a lot of impurities, and this water is not allowed to enter the water vapor circulation system. Natural water is properly purified and the quality of water vapor in water and steam systems is strictly monitored.

Using qualified make-up water is a prerequisite for the safe, economical, reliable and stable operation of the boiler and the production of qualified steam and hot water. Poor quality will lead to incrustation, damage of the heated surface metal due to high temperature, the decrease of thermal efficiency, more frequent chemical cleaning and corrosion of boiler metal. Besides, steam azeotropy due to excessive salt content in boiler water will result in steam deterioration of quality. Therefore, the power industry's requirement for the quality of the effluent water for desalination is particularly important.

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〉Industry applications


In order to effectively prevent and reduce accidents caused by boiler incrustation, corrosion and deterioration of steam quality, which is conducive to promoting the stable and reliable operation of the unit, the make-up water needs to be treated, which is usually done by ion exchange and membrane methods. Mainly applied to boiler, unit water treatment of industrial sub-industries such as power, coal chemical, petrochemical, metallurgy, light industry and unit water treatment. 


National standard

The quality of the produced water meets the GB_T 12145-2008_ Water and Steam Quality Standard for Thermal Power Generating Sets and Steam Power Equipment a. Electrical conductivity (25 ° C):  0.2us/cm     b. Si02: 20ug/L   c. Hardness ≈0



Typical processing technology

       ·Regular treatment processing technology A 
      
      Raw water pool → raw water pump → mechanical filter → cation exchanger → decarbonization tower → intermediate water tank → intermediate water pump → anion exchanger → mixed ion exchanger → desalinated water tank → desalted pump → export to power generation boiler 
       
        ·Regular treatment processing technology B 
       
        Raw water pool → raw water pump → mechanical filter → heat exchanger → scale inhibition and dosing → security filter → RO high pressure pump → RO device → decarburizer → intermediate water tank → intermediate water pump → mixed ion exchanger → desalinated water tank → desalted pump → delivery to power generation boiler 
       
        ·Regular treatment processing technology C 
       
        Raw water pool → raw water pump → heat exchanger → laminated filter → ultrafiltration water supply pump → ultrafiltration device → ultrafiltration water tank → scale inhibition / reduction dosing → RO water supply pump → security filter → RO high pressure pump → RO device → decarburizer → intermediate water tank → intermediate water pump → mixed bed → desalinated water tank → desalted pump → delivery to the power generation boiler 
        
        ·Full film processing technology 
       
        Raw water pool → raw water pump → heat exchanger → laminated filter → ultrafiltration water supply pump → ultrafiltration device → ultrafiltration water tank → scale inhibition / reduction dosing → RO water supply pump → security filter → first-stage RO high-pressure pump → First-stage RO device → PH adjusting device → Inter-stage water tank → Second-stage RO high-pressure pump → Second-stage RO device → Intermediate water tank → Intermediate water pump → EDI electric continuous desalination device → des



Technical introduction



Traditional skill for boiler make-up water treatment 


Technical introduction



Introduction of Boiler Water Supply Full Membrane Technology

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Reclaimed water is internationally recognized as the second source of water in cities. Reclaimed water can not only solve the impact of waste water on the urban environment, but also increase the total available amount of water resources, which is an important measure for enlarging urban water supply. At the same time, according to analysis, with the more and more reasonable water supply prices through gradual adjustment, the value advantage of reclaimed water as the second urban water source has become more prominent.

Water shortage in and around metropolis pose as a major social problem. Water shortage, especially during peak summer months, is evident in some urban areas; some local governments are increasingly adopting administrative measures to restrict water supply. In addition, the Ministry of Construction and various local government departments have successively launched various laws and regulations on the reuse of reclaimed water.

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〉Processing technology

1. Biotreatment technology: Using microorganisms in water for adsorption and oxidative decomposition of organic matter in waste water, including aerobic and anaerobic microorganisms. It is generally treated more aerobically. 
2. Physical and chemical processing technology: The combination of coagulation sedimentation (air flotation) technology and activated carbon adsorption. Compared with traditional secondary treatment, it can improve the water quality yet with higher cost. 
3. Membrane separation technology. "Using ultrafiltration (microfiltration) or reverse osmosis membrane treatment. Its advantage is that the SS removal rate is very high, and compared with the traditional secondary treatment, it covers less area. 




〉Technical characteristics

·System modular design, small coverage, easy operation and maintenance, convenient and fast installation, and beautiful appearance. 
·According to different raw water quality and different water requirements, we provide suitable, advanced, economical and secondary pollution-free treatment technologies. 
·The equipment produces stable water quality and continuous and stable operation. 
·The system can realize fully automatic operation. 
·Perfect instrumentation, online display of running data, easy to read, timely and accurate. 
·Protect the key components to ensure the normal operation of the system. 














Technology


Introduction to reclaimed water treatment process


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In most companies, there are reverse osmosis concentrated water, boiler drainage, circulating water drainage, and other high-salt miscellaneous water, which can still be further recycled. At the same time, in most regions, especially in Shandong, the salt limit in the emission standards is gradually set below 1600mg/L, so most enterprises need to control the total salt content of the discharged water. However, the concentrated waste water contains the most salt, and the high-salt concentrated liquid is consumed and processed by the enterprise according to actual conditions.

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〉Processing technology

At present, there are mainly reverse osmosis technology, electrodialysis technology and ion exchange for high brine treatment. The more mature process is reverse osmosis technology, which has the characteristics of high salt rejection rate, fully automatic operation and low investment, but also has frequent cleaning, recycling, low rate, etc., to make the reverse osmosis system run stably requires pretreatment. The pretreatment mainly deals with COD, suspended solids, hardness, etc. At present, the commonly used pretreatment processes include efficient clarification tanks, V-type filters, Media filters, ultrafiltration, etc., where high-efficiency clarification tanks can remove suspended solids and hardness, V-shaped filters and multi-media filters can only remove suspended solids and large particulate matter. Ultrafiltration is a pre-treatment, which can remove large particles. For molecular substances and some colloidal substances, most of the currently used reclaimed water uses ultrafiltration as a pretreatment process for reverse osmosis.













〉Technology


Introduction to reclaimed water treatment process

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Zero discharge means that through scientific treatment, the whole plant's waste water can be reused after it becomes fresh water. Zero discharge mainly depends on the biochemical treatment of terminal waste water, and then the general technology of the double membrane method is used for desalination treatment. After treatment, it is returned to the production system for utilization.

As for zero discharge, as far as its content is concerned, on the one hand, it is necessary to control the waste emissions generated during the production process and reduce them to zero; On the other hand, it is important to make full use of the waste that has been discharged and ultimately eliminate the existence of non-renewable resources and energy. In terms of its process, it means that the waste discharged during the production of one industry is turned into the raw material or fuel of another industry, and the related industries are formed into an industrial ecosystem through recycling. Technically, in the industrial production process, the transformation of energy, energy, and resources all follows certain natural laws. It is impossible to achieve 100% of the transformation of resources into various kinds of energy, the mutual transformation of various kinds of energy, and the conversion of raw materials into products.

According to the law of conservation of energy and the law of material immortality, the lost part is finally discharged into the environment in the form of water, gas, sound, slag, heat, etc. Since China started late in environmental protection, with the current technology and economic conditions, it is really difficult to reduce waste to zero as a last resort. For some enterprises have achieved the so-called "zero discharge" by making full use of the waste they have discharged, they have only changed the way, channels and nodes of pollutant discharge, some of which will eventually enter the environment In this sense, true "zero discharge" is just a theoretical and ideal state.

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〉Processing technology 

The zero discharge technology is a comprehensive application of physical, chemical, and biochemical processes such as membrane separation, evaporation, crystallization, and drying to condense the solid impurities in the waste water to a high concentration. Most of the water has been recycled, with a small amount of water accompanying the solid waste. According to the specific situation of each enterprise, one of the following ways can be chosen without exhausting the system (this "zero discharge" decision should consider at least the following three major factors: Environmental requirements-economic cost (competitiveness of the company)-production safety). 



     ·Evaporation/crystallization 
     · Evaporation/drying 
     · The natural evaporation of solar evaporation pond 
     · Applied to producing by-products and entering solid products 
     · Injected into the incinerator for disposal 




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With 20 years of experience as an original equipment manufacturer, we serve many large water treatment engineering companies and design institutes, with standard OEM processing, which includes production, transportation, installation, commissioning and after-sale service. We are professional, ask for low cost and trustworthy.

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The system operation and maintenance and hosting, industrial water treatment, membrane technology and application. Based on customer needs, to formulate targeted operation and maintenance service solutions. Professional operation and maintenance teams are committed to reducing operating costs, improving work efficiency and comprehensive utilization.

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