J9旗舰厅

1、 Equipment name: reverse osmosis circulating water treatment system of full automatic thermal power plant

2、 Specification and model: hdnro-100000l

3、 Equipment brand: Wenzhou Haineng wzhdn

4、 Product Description:

The circulating water cooling treatment system is a system for cooling and water quality treatment of the circulating cooling water in the industrial sector. The circulating cooling water is called circulating water. In the process of cooling production equipment or products, the water temperature rises. Although the physical properties of the cooling water change little, after long-term circulating use, some dissolved substances in the water concentrate or disappear, dust accumulates, microorganisms grow, resulting in the deposition of equipment, scale in the pipeline or corrosion of metal equipment and pipelines. Therefore, it is necessary to cool it and Stable treatment can make the circulating water system work normally.

The circulating water system is generally composed of the following parts:

1. Heat exchanger in production;

2. Cooling structures;

3. Circulating water pump and sump. The cooling structure of cooling water cooling treatment usually uses cooling pool or cooling tower; the production of circulating cooling water in the industrial production process needs to make raw materials react to generate the required products, usually heating raw materials; at the same time, the production products need to form industrial products, and often need to be cooled; therefore, in the industrial production process, a large amount of cooling water is often needed, the total amount of industrial cooling water It can account for more than 60% of the total industrial water consumption.

Circulating water treatment equipment is widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electric power, urban water supply.Such as industrial wastewater, circulating water filtration, emulsion regeneration, waste oil filtration, continuous casting water system and blast furnace in metallurgical industry water system, high pressure water descaling system for hot rolling, etc.

6、 Working principle:
1. Principle of sterilization and algaecide:

The circulating water treatment unit is used to purify the water quality of microorganisms (such as bacteria and algae) breeding. Its principle is that when the water flows through the scll type water treatment unit, the ecological environment of bacteria and algae in the water changes and the living conditions are lost and die. There are three aspects

① Any kind of creature has its own specific living biological field. The distribution and movement of electric charge in organism is affected by the change of electric field in the environment outside the organism, thus affecting the life activities of organism. The microorganisms on the earth can only adapt to and live in the electric field intensity (130v / M) on the earth's surface. Changing the electric field intensity can change or affect the physiological metabolism of bacteria (E.coli), such as gene expression program, enzyme activity, etc., which makes the survival of bacteria abnormal, which is one of the reasons leading to bacterial death.

② There are many channels in the cell membrane. Through these channels, the cell connects with its surroundings. These channels are composed of a single molecule or a molecular complex that allows ions to pass through. The regulation of ion channels affects cell life and function. The external electric field destroys the ion channels on the cell membrane and changes the internal current regulating the cell function, thus affecting the life of bacteria. The bacteria containing liquid flows through a strong electric field, which causes the instantaneous changing current to pass through the liquid, and the cells in the conductive path are killed by the high-speed electronic shock wave, so as to achieve the goal of sterilization.

③ During the treatment of water by electric field, the dissolved oxygen is activated to produce O2 -, · Oh, H2O2 and 1O2 (O2 - is superoxide anion radical, · Oh is radical radical, H2O2 is hydrogen peroxide, 1O2 is singlet oxygen). Active oxygen radicals can produce a series of harmful effects on microbial collective, which is the main reason for aging of organism. O2 - can damage important biological macromolecules and cause microbial organism damage; O2 - donates microbial organism membrane peroxidation and accelerates aging.

2. Anti corrosion working principle:

① Active oxygen forms oxide coating on the new tube wall.

② Microbial corrosion and silent corrosion were inhibited.

3. Scale prevention and descaling principle:

After the water passes through the SCLL processor, the degree of polymerization of water molecules decreases and the structure deforms, resulting in a series of slight elastic changes in physical and chemical properties. For example, the water dipole moment increases and the polarity increases, thus increasing the water and capacity of water and the ability to dissolve scale.Salt ions in water such as Ca2+, Mg2+ is arranged differently, and it is difficult to accumulate on the pipe wall, thus preventing the formation of scale.The specific energy field change Mg2+ is affected by the electric field gravity, and the arrangement changes, so it is difficult to accumulate on the tube wall, so as to prevent the formation of scale.The specific energy field changes the crystallization process of CaCO3, inhibits the generation of calcite, and provides the energy to produce the crystallization.After treatment, Zeta potential on the surface of suspended particles and colloids in water changes and tends to precipitate out of stable flocculation.The sediment is washed away by the current or removed by a blowdown, purifying the water.Reactive oxygen species are produced in the treated water.The process of heterozygosity of reactive oxygen species can accelerate the colloidal instability.For the scale-forming system, reactive oxygen species will destroy the electronic binding force between the scale molecules, change its crystal structure, and turn the hard old scale into loose soft scale. In this way, the scale will gradually peel off, and even become fragments and debris fall off, so as to achieve the purpose of scale removal.

7、 Precautions:

Main problems in circulating water operation:

(1) Scale:

Due to the continuous evaporation of circulating water in the cooling process, the salt concentration in the water increases continuously, which exceeds the solubility of some salts and precipitates. Common scales include calcium carbonate, calcium phosphate, magnesium silicate, etc. The scale has a dense texture, which greatly reduces the heat transfer efficiency. The scale thickness of 0.6mm reduces the heat transfer coefficient by 20%. 　　

(2) Dirt:

Dirt is mainly composed of organic matters, microbial colonies and secretions, sediment and dust in the water. The soft texture of the scale not only reduces the heat transfer efficiency, but also causes corrosion under the scale and shortens the service life of the equipment. 

(3) Corrosion:

Circulating water corrosion of heat exchange equipment, mainly is the electrochemical corrosion, the causes of equipment manufacturing defects, enough oxygen in water, the water corrosive ions (Cl -, Fe2 +, Cu2 +) and microbes secrete mucus generated by the factors such as dirt, corrosion of the consequence is very serious, uncontrolled a very short time even heat exchanger, water pipe road equipment scrap. 　　

(4) Microbial slime:

Because the circulating water is dissolved with sufficient oxygen, suitable temperature and rich nutrient conditions, it is very suitable for the growth and propagation of microorganisms. If not controlled in time, the water quality will quickly deteriorate, stink and turn black, a large number of scale deposits and even blocks in the cooling tower, the cooling and heat dissipation effect will be greatly reduced, and equipment corrosion will be intensified. Therefore, the reproduction of microorganism must be controlled in the treatment of circulating water.

8、 Ro:

Reverse osmosis technology is a mature desalination technology in the world at present, and it is also a water treatment technology with wide market application and wide application range. It can filter bacteria, viruses, metal ions, salts, pesticides and all kinds of carcinogens in water precisely. It has low working pressure, large water yield and high desalination rate. It is easy to maintain and design automatic washing device, which can prolong its service life. The design of automatic flushing device can prolong its service life.

9、 Ro characteristics:

◇ RO membrane automatic and manual operation / flushing, optional touch screen control, human-computer interface.

◇ RO membrane can be cleaned manually with chemicals in the machine

◇ high water level automatic stop, low water level automatic start

◇ water shortage protection and overload and overpressure protection of multi-stage high-pressure pump

◇ voltage loss, undervoltage, overcurrent, short circuit, open circuit, leakage protection

◇ the equipment is made of stainless steel, fully automatic operation, and no need for manual conduct.

10、 Water quality standard:

1. The influent water quality is urban tap water or equivalent.

2. Technical indicators of water production:

    (1) Water production flow: 100 tons / h (water temperature 25 ℃) reverse osmosis

    (2) Water production standard: in accordance with national standard a for reverse osmosis equipment design (GB / t19249-2003)

    (3) In line with the national industrial deionization water quality standard cj94-2005

    (4) Conductivity ≤ 5 μ M / cm (conductivity of raw water ≤ 1000 μ M / cm)

1. The system equipment is entitled to one-year free warranty, the warranty date is calculated from the date of product acceptance, and the consumable filter material is not listed here.
2. In case of any equipment quality problem (except caused by misoperation or unforeseen factors) during the warranty period, the supplier shall repair it free of charge and replace the damaged parts.
3. After the expiration of the warranty period, only a certain material fee and appropriate technical service fee will be charged.
4. In case of system operation failure which cannot be solved by itself or by telephones, our technical maintenance personnel shall make solutions (including temporary measures) and schedule within 24 hours after receiving the written notice from the demander and report to the competent leaders of both parties.
5. After the delivery of the equipment, our company will have engineers to pay a return visit to understand the operation of the equipment and provide technical services in a timely manner. Users are welcome to ask any technical questions, and we will reply in time.

① the user shall provide detailed data of raw water test, so that our company can carry out relevant selection and arrangement calculation.
② the user shall explain the water quality requirements, use and water yield of the produced water.
③ our company has many types of pressure vessels, membranes, accessories, etc. if the user gives special instructions, we will try our best to meet the requirements.
④ our company provides installation and debugging for the designed and sold equipment and training for the user's operation personnel.
⑤ our company implements the principle of one-year equipment warranty and lifelong service for users, and establishes archives for tracking service to ensure the quality level.

If the above equipment fails to meet your requirements, please contact us, and we will make a detailed engineering plan according to your actual situation, to achieve a low-cost, high efficiency and scientific process combination, so that the water production can meet your ideal requirements.