Operation requirements of double tubesheet multi effect distilled water machine

Double tubesheet multi effect distilled water machine is an ideal equipment for water production in hospitals, pharmaceutical, electronics, food and beverage industries What should be paid attention to when the double tubesheet multi effect distilled water machine is running: operation requirements of double tubesheet multi effect distilled water machine (1) pay attention to enough purified water during operation, and strengthen the on-line monitoring and control of feed water, with the conductivity less than 2 μ s / cm; the pH value must be 5-7, free of silica and chloride ion, otherwise corrosion and leakage will occur during long-term operation Check the composition of microorganism and chemical agent, such as sampling before and after the activated carbon filter, monitoring the residual chlorine and microorganism content in the water; test the softening effect of resin (change of water hardness before and after treatment) Unqualified water will be diverted to the waste water unit (2) pay attention to overflow of evaporator, visual inspection or automatic display of high water level of multi effect distilled water machine; pay attention to mixing non vaporized water into distilled water due to improper control of water supply valve and liquid level of distiller (3) install a sanitary diaphragm pressure gauge on the condenser (heat exchanger) to ensure a high pressure on the distilled water side Prevent other media from entering the distilled water system (4) during the use, the pressure, flow rate, temperature, conductivity, organic carbon, pH and other control instruments shall be inspected and verified regularly to ensure their accuracy, and the qualified label shall be pasted in time The integrity of the filter of multi effect distilled water machine is qualified The quality status of each unit of water for injection system shall be inspected regularly (5) when the water pump of multi effect distilled water machine is installed and started for the first time, attention shall be paid to the correct direction of the water pump impeller; check whether there is gas in the water pump, open the plug at the water outlet side of the water pump to vent and fill with water, and then install the plug again, that is to say, the feed water pump must be emptied before starting to ensure the safe operation of the water pump If the operation sound of the water pump is abnormal, pay attention to check whether the feed water is short of water or there are foreign matters in the pump (6) due to the fact that most industrial steam pipes are made of iron, impurities such as rust during long-term operation are easy to block the primary condensate valve or steam trap, and attention shall be paid to maintenance, inspection and removal during use (7) if there is leakage in the inner shell side of the first effect evaporator, there will be red and yellow substances in the water sample through 0.22 μ M filter membrane; if the pyrogen is unqualified, there may be leakage in the cooling water pipe or purification water pipe of the condenser; leakage detection and welding shall be carried out in time, pressure test and water quality verification shall be carried out, and inspection records shall be made (8) if there is air leakage or water leakage at the seal, check and fasten the corresponding bolts If the service life is long, the gasket can be renewed The above is about the operation requirements of double tubesheet multi effect distilled water machine.