Some Problems in the Water Treatment of the Boiler in the Industrial Boiler of the Chemical Plant
What are the problems in water treatment of industrial boilers in chemical plants? What are the problems in water treatment of industrial boilers in chemical plants? The water in the boiler is equivalent to the blood of the boiler. The purpose of boiler water treatment is to prevent the scale corrosion of the boiler, to ensure the normal water supply of the boiler, to ensure the quality of boiler steam, so as to ensure the safe, economical and energy-saving operation of the boiler. In recent years, with the wide application of large boilers, about 75% of the accidents caused by improper treatment of water quality account for about 75% of the major accidents of boilers. Improper treatment of water quality has become the biggest hidden danger of major accidents of boilers. At the same time, Energy loss caused by scale It is also inestimable. According to the relevant research, the boiler fuel increases by 8% and the working efficiency decreases by 5% for every 1 mm increase in boiler scale. The problem of boiler water quality treatment has become an urgent problem to be solved in boiler management.
By strengthening the standard management of boiler water treatment in chemical plant, on the one hand, it can prevent and reduce the occurrence of boiler water scaling, reduce boiler corrosion and improve steam quality, on the other hand, it can promote boiler more energy saving and environmental protection. Run economically. In this paper, according to the water treatment inspection and regular inspection of industrial gas steam boiler in chemical plant, combined with the actual situation of low pressure boiler water treatment in chemical plant industrial boiler, The main problems existing in the water treatment of industrial gas steam boiler in chemical plant are analyzed, and the corresponding countermeasures are put forward. Industrial boiler water in chemical plant The existing problem 1, the water quality is poor, most of the boiler feed water of industrial boilers in chemical plants adopts tap water or groundwater, but tap water and groundwater belong to high hardness water, and the water quality is generally poor. However, the high hardness of water quality makes the boiler scale easily, endangers the safe operation of the boiler and wastes fuel. In the area of poor water quality, the probability of boiler bulging and pipe explosion in operation is much higher than that in other areas.
The water quality is generally not tested, and the utilization rate of water treatment equipment is very low. In the use of industrial boilers in chemical plants, most of them are not equipped with full-time boiler water treatment staff. The quality of boiler feed water has not been tested in accordance with the relevant standards of many countries, and the water treatment equipment has not been followed up at any time, so it is often impossible to judge whether the equipment is running normally or not, and for resin pollution in the equipment, As well as the loss of equipment and so on, can not be found and dealt with in time, so that the boiler water quality is generally not ideal.
The quality of water treatment equipment is not up to standard, and attention is not paid to the inspection of water treatment equipment. The quality of water treatment equipment on the market is uneven, coupled with vicious competition, which leads to the flooding of the whole market with water treatment equipment which is not up to standard. When the boiler inspectors inspect the boiler, they often ignore the acceptance of the water treatment equipment, and do not pay attention to the matching between the treatment capacity of the water treatment equipment and the boiler.
Lack of professional personnel, water treatment work blindly large chemical plant industrial boiler use units generally do not pay attention to the phenomenon of water treatment work, can not ensure that water treatment personnel have excellent professional knowledge and technical level. At present, most of the boiler water treatment personnel in the city are part-time by the furnace workers, most of them do not have the professional knowledge of water treatment, do not master the principle of water treatment at all, for the necessary pharmaceutical performance in water treatment, The method of drug use and the frequency of drug addition are not understood, and the working method of water treatment equipment is not fully grasped, so the phenomenon of improper use of drugs often occurs, which brings great damage to boiler water treatment. In particular, if the pot water treatment method is not operated properly, it will even cause counterproductive results, and at the same time, it is easy to cause damage to the water treatment equipment.
5. the condensate recovery rate of steam boiler is low or the return water is not treated. Most of the steam boilers do not recover condensate water, resulting in waste of water resources and heat loss, which do not meet the requirements of environmental protection and energy saving. Only a few steam boilers recover condensate water, but have not been treated, resulting in corrosion of backwater system, resulting in high iron content in condensate water, resulting in muddy and red water quality, which increases the risk of electrochemical corrosion of heated surface furnace tube.
