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Industrial Equipment

Small Desalination Equipment

 1 desalination technology

China is a large water resources, but also poor water resources. Seawater as an important part of water resources, effective use is to solve China's water crisis one of the important measures.

Membrane technology for seawater desalination is mainly reverse osmosis, electroosmotic (ED) and membrane distillation (MD) and so on. The desalination rate of reverse osmosis membrane for seawater desalination is as high as 99.6%. The emergence and development of reverse osmosis technology greatly reduce the cost of desalination, and now reverse osmosis has become the most economical means of desalination of drinking water, the technology has the following advantages:

1. application of membrane method desalination of seawater technology is very mature;

2. reverse osmosis membrane material, membrane components production technology is mature, the price dropped significantly, the application cost is getting lower and lower;

3. low power consumption, the existing technology has reached the water consumption of 1.8 - 4.5 degrees or so, is conducive to energy conservation, reduce water costs;

4.membrane method desalination of seawater as a unit combination, the construction scale can be gradually expanded to facilitate the application;

5.It is a mature technology and engineering, and its investment risk is very small. The investment of membrane equipment is related to civil engineering, power engineering, self - control engineering, pipeline engineering and other related projects.

6. reverse osmosis desalination of seawater, coupled with the nanofiltration membrane technology, to retain the presence of seawater beneficial to the human body a variety of trace minerals, with biological activity, can be directly drinking healthy drinking water;

7. reverse osmosis desalination of water without change, separated from the concentration of seawater salinity than the original sea water 2-3 times higher, the concentrated sea water can not only be used to breed such as sea cucumber, abalone, scallops, large yellow croaker, shrimp, eel, etc. High-grade seafood, but also from the more economical extraction of bromine, magnesium, uranium, gypsum, Glauber's salt, salt, potassium oxide, magnesium sulfate, magnesium chloride, magnesium phosphate, magnesium oxide and other marine chemical substances to achieve comprehensive utilization of marine resources;

8. The film used is a hygienic polymer material, can completely cut off bacteria, viruses, collagen, heavy metal ions and other harmful substances, will benefit the people's health.
 
2, The characteristics of small desalination equipment

Small desalination equipment to take full account of the requirements of the user design and production, according to the island / ship / yacht / oil drilling platform application of the particularity of the special design, desalination machine small size, light weight, covers the province, easy installation, Adaptable, long life, simple operation equipment, easy maintenance, safe and reliable, innovative design clever, to avoid frequent cleaning, no environmental pollution. Seawater desalination water quality in line with national drinking water quality standards (GB5749-2006).

1. Low energy consumption: With a variety of energy recovery system experience, the use of efficient energy recovery system and the overall optimization of the design makes the energy consumption greatly reduced.

2. Long service life: rigorous process design and sophisticated equipment selection, to ensure a longer system life and lower maintenance costs.

3. Water quality and stability: advanced water quality control and excellent system maintenance program to ensure long-term stability of water quality.

4. highly intelligent: with years of accumulated experience in the project, summed up a set of operation and management model, according to the actual needs of users, developed desalination monitoring software to provide a good man-machine dialogue function of the central control automatic control system.

5. Applicable sea water temperature range: Seawater desalination device due to the use of proprietary technology, so that it can be 2 ℃ -30 ℃ water temperature range full load operation, will not be due to temperature drop caused by decreased water production, to ensure that users in the Under any conditions can be rated water production.

6. Successful application of modular systems: Successful use of space and technology Rationally Based on years of successful use of desalination technology, rich experience in design and construction has been accumulated and modular design has been successfully applied to desalination systems. System configuration is more reasonable, more convenient construction, fast. To meet the different needs of customers.

7. computer program control: the entire reverse osmosis desalination control system designed using advanced computer program control at home and abroad, by the IPC operating station programmable controller PLC composed of a decentralized sampling control, centralized monitoring operation of the control system. According to the process parameters set high and low voltage protection switch, automatic switching device, conductance, flow and pressure abnormalities, can achieve automatic switching, automatic interlocking alarm, shutdown, to protect the high pressure pump and reverse osmosis membrane components. Frequency control high-pressure pump start and shut down to achieve high-pressure pump soft operation, saving energy, to prevent water hammer or back pressure caused by high pressure pump and membrane components damage. Program design in the reverse osmosis device before and after the shutdown, can achieve low pressure automatic flushing, especially in the outage, the concentration of seawater will stabilize the state of precipitation, pollution film, low pressure desalination water can be washed out of concentrated water, Membrane is not contaminated and prolongs the service life of the membrane. The system of temperature, flow, water quality, yield and other related parameters to achieve display, storage, statistics, tabulation and printing. The dynamic process flow in the monitoring operation is clear and intuitive, and the system control simplifies manual operation to ensure that the system can operate automatically, safely and reliably.

 
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