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In winter, the temperature is low and the water is easy to freeze. In order to ensure the normal operation of the equipment, the first thing is to ensure that the water does not freeze. During the period when the equipment is not in operation, the water in the equipment should be cleaned to prevent the water from freezing and damaging the equipment.

Water treatment equipment is usually installed indoors or in places that can shelter from wind and rain, but also in outdoor equipment. How to use and maintain water treatment equipment in winter?

1. Guidelines for the winter use of water treatment equipment in Killi Stream; with the longer use time of water treatment equipment, the water production decreases accordingly, which is normal, but the water production will be less in winter. This is because the water temperature and low permeability of glass tank membrane cleaning equipment will decrease, and the density of reverse osmosis membrane will change accordingly. These two reasons are deionization. Water treatment equipment will produce less water, how to solve this problem, which requires more careful and thoughtful operation, strengthening the number of backwashing pretreatment equipment, increasing rinsing time, precision filter elements to be changed frequently, reverse osmosis membrane backwashing time to increase, pressure reduction surge, so as to ensure the normal operation of the equipment.

2. Usually when the water temperature drops by 1 C, the water yield of reverse osmosis membrane decreases by 3%. The water yield of coating water treatment equipment in winter is about 50% of that in summer. With the increase of wastewater, the flow rate of wastewater will increase correspondingly and the ratio of wastewater will increase. This is a normal phenomenon. When the temperature rises again, the wastewater will decrease and the flow rate will increase. Increase in volume;

3. Whole machine anti-freezing, if installed outdoors, must have anti-freezing measures, if there is no anti-freezing measures may lead to freezing cracks of filter tanks, membrane shells and so on, the temperature below zero must stop using water treatment equipment; Installed indoors must ensure that the room temperature must not be less than 0 degrees, because the volume of water in the solidification process will expand, easy to filter. If the pressure inside the tank increases, accidents may occur if the pressure exceeds the pressure of the filter tank; if the ice is frozen, all the pipes, filter tanks and membrane shells of the water treatment equipment will burst, resulting in water leakage.

4. Protection of equipment and facilities (1) Winter heat preservation of all kinds of equipment. The tank and membrane equipment shall be drained regularly as required to prevent the equipment and valves from freezing and cracking due to dead water. (2) The backup equipment and containers for shutdown should be cleaned, backwashed and washed before the equipment is put into use, and pressure-relief places should be prevented from suffocating. Freeze-proof discharge of equipment must be listed, registered and inspected. (3) The water circulation system should be kept unblocked, the main valve of the unused water line should be closed, and the water should be emptied at the low point. The anti-freezing long-running water should be recycled as far as possible. (4) Strengthen the inspection of the heat preservation and tracing system of the equipment and process, so as to ensure that the safety inspection is in place in time. (5) Supervisors and inspectors of regional fire, explosion and freeze-proof thermal insulation shall be responsible for the supervision and inspection of regional fireproof, explosion-proof and freeze-proof thermal insulation, and the system of releasing water and freeze-proof shall be strictly implemented in accordance with the requirements of the system. It is necessary to check and confirm the anti-freezing equipment. In production and operation, attention should be paid to the equipment for low-point water storage, heat preservation or emptying and draining (6) overhaul. The anti-freezing and draining work shall be checked and handled by the operator in coordination with the maintenance personnel. After the completion of the work, the operator shall check and accept the equipment and confirm it.

Author: Hangzhou Water Shield Technology Co., Ltd.

Website: http://www.zjhzsd.com/

Key words: deionized water treatment equipment, coating water treatment equipment, glass tank membrane cleaning water equipment