Multi effect distilled water machineFor reverse osmosis devices, separation, extraction, purification, and concentration can be carried out using reverse osmosis methods with pressures greater than the osmotic pressure of various materials. One is a selective membrane, which we call a semi permeable membrane, and the other is a certain pressure. Simply put, there are numerous pores on the reverse osmosis semi permeable membrane, whose size is equivalent to that of water molecules. Due to the fact that bacteria, viruses, most organic pollutants, and hydrated ions are much larger than water molecules, they cannot separate from the water phase passing through the reverse osmosis membrane. Among the various impurities in water, soluble salts are the most difficult to remove. Therefore, the water purification effect of reverse osmosis is often determined based on the desalination rate, which is mainly determined by the selectivity of the reverse osmosis semi permeable membrane.
Multi effect distilled water machineThe principle is to separate substances from water based on the fact that other substances cannot pass through the semi permeable membrane under the action of a pressure higher than the osmotic pressure of the solution. Due to the very small pore size of reverse osmosis membranes, they can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. from water.Multi effect distilled water machineThe secondary steam converted from raw water during work is clean steam. After entering the evaporator at the beginning, it flows down along the tubes and evaporates at the same time, which is the first separation; The evaporated raw water is turned back 180 degrees at the lower end of the machine, and impurities are separated to the lower part by gravity, which is the second separation; The evaporated raw water, also known as secondary steam, continues to spiral upwards in the evaporator and reaches a special separation device in the middle and upper parts for the third separation, cooling the distilled water produced by each effect and the secondary steam of the final effect. InMulti effect distilled water machineAmong them, there is a portion of gas that cannot condense into water, called non condensable gas, which will be removed by the exhaust device installed on the upper part of the condenser.