How to clean the heat exchanger?

For a long time, traditional cleaning methods such as mechanical method (scraping, brushing), high-pressure water, chemical cleaning (pickling) and so on have many problems when cleaning the heat exchanger: the deposits such as scale cannot be completely removed, the acid solution causes corrosion to the equipment, forming loopholes, the residual acid causes secondary corrosion or corrosion under the scale to the material, and Z eventually leads to the replacement of the equipment In addition, the cleaning waste liquid is toxic, so it is necessary to A lot of money for wastewater treatment The newly developed non corrosive cleaning agent for the equipment, including the well-developed fstec cleaning agent, is environmentally friendly, safe and non corrosive, which not only has good cleaning effect but also has no corrosion to the equipment, and can ensure the long-term use of the heat exchanger   Cleaning agent (with special addition of wetting agent and penetrating agent, it can effectively remove the Z stubborn scale (calcium carbonate), rust scale, oil scale, slime and other precipitates produced in the water equipment, and will not cause harm to human body, and will not produce erosion, pitting, oxidation and other harmful reactions to steel, copper, nickel, titanium, rubber, plastic, fiber, glass, ceramics and other materials It can greatly extend the service life of the equipment In the process of industrial production, sometimes some equipment or local pipeline lines will be scaling and blocking due to sudden Qing condition caused by improper operation, which will affect the normal operation of production For this situation, it is mainly to remove the dirt quickly to ensure that the production device can operate normally and return to normal production state Restore unit productivity For example, the scaling of chemical equipment results in the decrease of heat transfer coefficient of heat exchanger and other equipment, the decrease of pipeline circulation area or the increase of circulation resistance, the increase of energy and material consumption, and the decrease of production efficiency At this time, the production efficiency of the production equipment can be restored by cleaning and descaling Due to many reasons, there will be a lot of fouling such as coking, oil dirt, scale, sediment, corrosion products, polymers, fungi, algae, slime and so on in heat exchanger equipment and pipeline lines However, the dirt produced during the operation will make the equipment and pipeline fail, the production of the device system will decline, energy consumption, material consumption will increase and other adverse conditions, especially when the dirt is very corrosive, the process will be interrupted, the device system will be forced to stop production, which will directly cause various economic losses, and even may cause malignant production accidents In today's scientific development, it is almost impossible to completely avoid the generation of dirt Therefore, the cleaning of heat exchanger and other equipment has become an indispensable part in the production of industry (such as petroleum, chemical industry, electric power, metallurgy and other industries) High pressure water jet cleaning heat exchanger belongs to physical cleaning method Compared with traditional manual, mechanical cleaning and chemical cleaning, it has many advantages: low cleaning cost, good cleaning quality, fast cleaning speed, no environmental pollution and no corrosion to equipment High pressure water jet cleaning technology is developing rapidly in China The proportion of water jet industrial cleaning in large and medium-sized cities and enterprises has been close to 20%, and the growth rate is about 10% every year, which is in the ascendant It is estimated that in 6-7 years, in China's industrial cleaning industry, the high-pressure water jet cleaning technology will be dominant, which is the only way for China's industrial cleaning.