What is the cleaning method of spiral plate heat exchanger?

What is the cleaning method of spiral plate heat exchanger?

Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also called heat exchanger. Heat exchangers play an important role in many industries such as chemical engineering, petroleum, electric power and food. So, what is the cleaning method of spiral plate heat exchanger?

What is the cleaning method of spiral plate heat exchanger?

1. For a long time, traditional cleaning methods such as mechanical methods (scraping and brushing), high-pressure water, chemical cleaning (pickling), etc. There are many problems in cleaning spiral plate heat exchanger: deposits such as scale can't be completely removed, acid solution corrodes equipment to form holes, and residual acid causes secondary corrosion or under-scale corrosion to materials, which leads to equipment replacement. In addition, the waste cleaning liquid is toxic, and the waste water treatment needs a lot of money. Among the newly developed cleaning agents that have no corrosion to the equipment, Fostec cleaning agent with better technology is efficient, environment-friendly, safe and non-corrosive, which not only has good cleaning effect, but also has no corrosion to the equipment, and can guarantee the long-term use of the heat exchanger. Cleaning agent (specially added with wetting agent and penetrant, it can effectively remove stubborn deposits such as scale (calcium carbonate), rust scale, oil scale and sticky mud. It is produced in water equipment, at the same time, it will not cause harm to human body, and will not cause other harmful reactions such as corrosion, pitting and oxidation. For steel, copper, nickel, titanium, rubber, plastic, fiber, glass, ceramics, etc. Can greatly prolong the service life of the equipment.

2. In the process of industrial production, sometimes due to unexpected situations caused by improper operation, individual equipment or local pipelines are fouled and blocked, which affects the normal operation of production. In this case, it is mainly to quickly remove dirt, ensure the normal operation of production equipment and restore the normal production state. Restore the production efficiency of the factory. For example, the scaling of chemical equipment leads to the decrease of heat transfer coefficient of spiral plate 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 obvious decrease of production efficiency. At this time, the production efficiency of production equipment is restored by cleaning and descaling.

3. Due to various reasons, a large amount of dirt, such as coking, oil scale, scale, sediment, corrosion products, polymers, fungi, algae, sludge, etc., will be produced in spiral plate heat exchanger equipment and pipelines. However, the dirt produced in the process of work will make the equipment and pipelines fail, and the factory system will have some bad situations such as the decrease of output, the increase of energy consumption and material consumption. When the corrosiveness of dirt is particularly strong, the process will be interrupted, and the factory system will be forced to stop production, which will directly cause various economic losses and even lead to vicious production accidents. With the development of science, it is almost impossible to completely avoid the generation of dirt. Therefore, the cleaning of spiral plate heat exchanger and other equipment has become an indispensable and important link in the production of industry (such as 3360 petroleum, chemical, electric power, metallurgy and other industries).

4. High-pressure water jet cleaning spiral plate heat exchanger belongs to physical cleaning method. Compared with traditional manual, mechanical and chemical cleaning, it has the advantages of low cleaning cost, good cleaning quality, high cleaning speed, no environmental pollution and no corrosion to equipment. China's high-pressure water jet cleaning technology is developing rapidly. The proportion of industrial cleaning by water jet in large and medium-sized cities and enterprises is close to 20%, and it is growing at a rate of about 10% every year, which is in the ascendant. It is expected that in 6-7 years, high-pressure water jet cleaning technology will occupy an absolute advantage in China's industrial cleaning industry, and it is the only way for China's industrial cleaning.