Basic principles and advantages of low-pressure boiler softened water treatment equipment-Ocpuritech

Basic principles and advantages of low-pressure boiler softened water treatment equipment

by:Ocpuritech     2021-06-13
Low pressure boiler softened water treatment equipment basic principles and advantages of the article: Regardless of how economic development, we are living without water, water is the source of our life. No matter what industry is inseparable from water, now every company should have its own boiler. The water generally used now is 'hard waterThis is a big trouble for boilers used to heat water. We all know that boilers that burn hard water will accumulate a lot of scale, and these scales will cause a lot of harm to the company. After the boiler is scaled, the heat transfer performance of the heating surface becomes worse, and the heat released by fuel combustion cannot be When the heat is transferred to the boiler water in time, a large amount of heat is taken away by the flue gas, causing the exhaust flue gas temperature to be too high. If the exhaust flue gas loss increases, the boiler thermal efficiency will decrease. In order to maintain the rated parameters of the boiler, more fuel must be added, thus wasting fuel. Moreover, after the boiler is fouled, the heating surface of the boiler is easily damaged, the output of the boiler will be reduced, and the destruction of the water circulation will also corrode the metal boiler. (1) The treatment system of the first-level low-pressure boiler furnace softened water treatment equipment:   ①Working principle: The raw water usually contains very fine particles of dust, humus, starch, cellulose, bacteria, algae and other microorganisms. These impurities form colloidal particles in the sol state with water. Due to the Brownian motion electrostatic repulsion, they exhibit sedimentation stability and polymerization stability. Usually, they cannot be removed by gravity sedimentation. Generally, the pretreatment of raw water can be done by adding flocculants to destroy the sol. Stability makes the small colloidal particles flocculate into larger particles, which are pre-filtered through sand filter and carbon filter to remove these particles. The filter material used in the sand filter is manganese sand to remove the flocculent impurities (mainly organic humus and clay inorganic compounds) in the raw water, so that the turbidity of the effluent is less than 0.5HTU. At the same time, manganese sand is also a catalyst, which can well promote the oxidation of Fe2+ to Fe3+, forming Fe(OH)3 precipitation, and removing iron ions through filtration. ②Operation mode: The operation of the multi-media filter is mainly divided into: normal operation, recoil and other parts.    The operation and recoil of the system: The operation and recoil of the system are controlled manually. When the operating time of the mechanical filter reaches the set value of the backwash time, the filter will be manually controlled to backwash operation: the pressure and flow monitoring instrument reflect the operating status of the system, and the duty personnel shall be disciplined according to the requirements and supervise and inspect it. Whether it is operating normally. (B) Two-stage low-pressure boiler furnace softening water treatment equipment system:   ①Working principle: The main component of the two-stage activated carbon filter is activated carbon. When the influent water indicator residual chlorine is less than 50.1mg/L. The activated carbon filter has two main functions:  1. It absorbs some organic matter in the water, and the adsorption rate is about 60%. 2. Absorb residual chlorine in water. It is difficult to remove five organic colloids, organic colloids and soluble organic polymer impurities and residual chlorine with a particle size of about 10-20 angstroms in a mechanical filter. In order to further purify the raw water and make it reach the reverse osmosis water intake index, a two-stage activated carbon filter is designed in the process flow. The reason why activated carbon can be used to adsorb active substances with a particle size of about tens of angstroms is due to the large amount of active matter in its structure. The average pore diameter is 20-50 angstroms and micropores and granular gaps. This structural feature of activated carbon enables its surface adsorption area to reach a point of 500-2000 M2/G. Because the molecular diameter of general organic matter is slightly less than 20-50 angstroms, Therefore, activated carbon is more effective in adsorbing organic matter.
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