LYJY-LSY磷酸盐加药装置的工作原理和使用场合
常用加药装置分类
1、氨加药系统
加氨系统可实现全自动控制，除手动配制外，还可自动控制氨溶液配制。当溶液箱液位低于设定值时，溶液箱进水阀自动开启，液位高时自动关闭。除手动控制外，加氨量也可自动控制。通过PLC程控系统进行PID计算后，由变频器控制VAREM氨计量泵的加氨量达到设定值，达到自动加药的目的。
2、锅炉水磷盐分配系统
配制磷酸盐溶液时，将磷酸三钠直接加入溶液罐加药处，启动搅拌机溶解。沃特桑尼LYJY-LSY磷酸盐加药装置除手动控制外，磷酸盐用量的控制也可全自动。通过PLC程序控制系统进行PID计算，变频器控制VAREM计量泵的计量量，达到自动加药的目的。
LYJY-LSY磷酸盐加药装置的适用范围
1、火电工业锅炉水处理系统、循环冷却系统、原水预处理及废水处理系统；
2、石油化工锅炉水处理系统、循环冷却系统、化学添加剂加药系统、废水处理系统；
3、城市供水和污水处理系统；
4、其他相关行业的液体加药系统。
沃特桑尼LYJY-LSY磷酸盐加药装置的工艺原理是锅炉给水中钙镁的硬度在高温环境下会发生化学反应，或浓缩结晶形成不溶性水垢，牢固附着在锅炉受热面上。这种水垢是热的不良导体，会阻碍热传导。严重时，可能发生锅炉爆管事故。此外，还会诱发和加剧垢下金属的化学腐蚀，造成严重危害。虽然锅炉凝结水和给水经过了严格的软化脱盐处理，但仍有少量钙镁硬度进入锅炉水中。如果这部分硬度不处理，结垢也会对锅炉的安全运行构成威胁。目前，在锅炉水中加入磷酸盐是比较合适的处理方法。反应如下：10ca2++6po4+2OH--CA10（OH）2（PO4）6（碱式磷酸钙）碱式磷酸钙是一种软水渣，随锅炉排污容易排出，不会粘附在锅炉上形成水垢。
Working principle and application of lyjy-lsy phosphate dosing device
Classification of common dosing devices
1. Ammonia dosing system
In addition to manual preparation, the ammonia solution preparation can also be controlled automatically. When the liquid level of the solution tank is lower than the set value, the water inlet valve of the solution tank will open automatically, and close automatically when the liquid level is high. In addition to manual control, the amount of ammonia can also be automatically controlled. After PID calculation by PLC program control system, the frequency converter controls the ammonia dosage of varem ammonia metering pump to reach the set value, so as to achieve the purpose of automatic dosing.
2. Phosphorus distribution system of boiler water
When preparing phosphate solution, add trisodium phosphate directly to the dosing place of solution tank, and start the mixer to dissolve. In addition to manual control, the control of phosphate dosage can also be fully automatic. PID calculation is carried out by PLC program control system, and the metering quantity of varem metering pump is controlled by frequency converter to achieve the purpose of automatic dosing.
Application scope of lyjy-lsy phosphate dosing device
1. Thermal power industrial boiler water treatment system, circulating cooling system, raw water pretreatment and wastewater treatment system;
2. Petrochemical boiler water treatment system, circulating cooling system, chemical additive dosing system, wastewater treatment system;
3. Urban water supply and sewage treatment system;
4. Liquid dosing system of other related industries.
The process principle of watersonny lyjy-lsy phosphate dosing device is that the hardness of calcium and magnesium in boiler feed water will undergo chemical reaction under high temperature environment, or form insoluble scale by concentration and crystallization, which is firmly attached to the boiler heating surface. This scale is a poor conductor of heat and will hinder heat conduction. In serious cases, the boiler tube explosion accident may occur. In addition, it can also induce and intensify the chemical corrosion of the metal under the scale, causing serious harm. Although the condensate and feed water of the boiler have undergone strict softening and desalination treatment, a small amount of calcium and magnesium hardness still enters into the boiler water. If this part of hardness is not treated, scaling will also pose a threat to the safe operation of the boiler. At present, adding phosphate into boiler water is a suitable treatment method. The reaction is as follows: 10ca2 + + 6po4 + 2OH -- CA10 (OH) 2 (PO4) 6 (basic calcium phosphate) basic calcium phosphate is a kind of soft water slag, which is easily discharged with boiler blowdown and will not adhere to the boiler to form scale.