What Is a Recuperator?

A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food, and many other industrial productions. They can be used as heaters, coolers, condensers, evaporators, and reboilers in chemical production, and are widely used. .

The heat exchanger is an energy-saving device that realizes the heat transfer between materials between two or more fluids with different temperatures. The heat exchanger transfers heat from the higher temperature fluid to the lower temperature fluid, so that the fluid temperature reaches the process. The specified index meets the needs of process conditions, and is also one of the main equipment to improve energy efficiency. The heat exchanger industry involves

It is suitable for heat exchangers with different media, different working conditions, different temperatures, and different pressures. The structure types are also different. The specific classification of heat exchangers is as follows:

1. Keep the pipe network clean. Whether before or after the work is completed, the pipe network must be cleaned. The purpose of this is to avoid the blockage of the heat exchanger. Also pay attention to cleaning the decontaminator and filter in time, so that the entire work can be successfully completed. 2. Strictly check softened water. It is very important to check the water quality. On the premise of water quality treatment for demineralized water, we must first carefully check the water quality problems in the system and the water in the softened tank, and determine the quality before performing injection treatment. 3. New system inspection. For some new systems, they cannot be used interchangeably with the heat exchanger immediately. First, the new system needs to be run for a specified period of time, so that it has an operating mode before the heat exchanger can be incorporated into the system. The purpose of doing so is to avoid impurities in the pipe network from damaging the heat exchanger equipment. ^[1]

The application of heat exchangers in the refining industry is very extensive, and its importance is also obvious. The use of heat exchange equipment directly affects the efficiency of the refining process and the cost of the problem. According to statistics, heat exchangers account for about 1/5 of the investment in chemical construction. Therefore, the utilization and life of heat exchangers are important issues worth studying. From the point of view of the damage of the heat exchanger, corrosion is a very important reason, and the corrosion of the heat exchanger is widespread. Being able to solve the corrosion problem is equivalent to solving the root cause of the heat exchanger damage. In order to prevent the corrosion of the heat exchanger, the root cause of the corrosion must be clarified. The reasons for the corrosion of the heat exchanger are discussed from the following aspects.

For a long time, traditional cleaning methods such as mechanical methods (scraping, brushing), high-pressure water, and chemical cleaning (pickling) have caused many problems when cleaning the heat exchanger: the deposits such as scale cannot be completely removed, and the acid solution causes corrosion to the equipment. A loophole is formed, and the residual acid causes secondary corrosion or subscale corrosion of the material, which eventually leads to the replacement of the equipment. In addition, the cleaning waste liquid is toxic and requires a large amount of funds for wastewater treatment. The newly developed non-corrosive cleaning agent for equipment, among which should be a better technology, Fu Shi Tai Ke cleaning agent, which is efficient, environmentally friendly, safe, non-corrosive, not only a good cleaning effect and no corrosion of equipment, can ensure the heat exchanger long-term use. Detergent (specific addition of wetting agent and penetrating agent can effectively remove the most stubborn scale (calcium carbonate), rust, oil scale, slime and other deposits generated in water equipment, and it will not cause harm to the human body. Will not cause corrosion, pitting, oxidation and other harmful reactions to steel, copper, nickel, titanium, rubber, plastic, fiber, glass, ceramics and other materials, which can greatly extend the service life of equipment. In the process of industrial production, Sometimes, due to improper operation, unexpected conditions may cause scaling and blockage of individual equipment or local pipeline lines, which affects the normal operation of the production. For this situation, the main purpose is to quickly remove the dirt to ensure the normal operation of the production equipment. To restore normal production status. Restore the production efficiency of the device. For example, the scaling of chemical equipment reduces the heat transfer coefficient of the heat transfer equipment and other equipment, the reduction of the pipeline flow area or the increase of the flow resistance, the increase in energy consumption and material consumption, and significant production efficiency. Decrease. At this time, the production efficiency of the production equipment is restored by cleaning and descaling. For many reasons Heat exchanger equipment, etc. and pipeline lines will produce a lot of dirt such as coking, oil dirt, scale, sediment, corrosion products, polymers, fungi, algae, slime, etc. However, these dirt generated during work will make the equipment And pipeline line failure, the device system will produce production decline, energy consumption, material consumption and other adverse conditions, especially if the corrosive dirt is severe, the process will be interrupted, the device system will be forced to stop production, directly causing various economic losses, and even possible A vicious production accident has occurred. It is almost impossible to completely avoid the generation of dirt in today's scientific development. Therefore, cleaning of heat exchangers and other equipment has become an industrial (such as petroleum, chemical, power, metallurgical industries) production. An indispensable link. High pressure water jet cleaning heat exchanger is a physical cleaning method. Compared with traditional manual, mechanical and chemical cleaning, it has many advantages: low cleaning cost, good cleaning quality, fast cleaning speed, And it does not cause environmental pollution and does not corrode equipment. China's high-pressure water jet cleaning technology has developed rapidly, The proportion of jet industrial cleaning is close to 20% in large and medium-sized cities and enterprises, and it is growing at a rate of about 10% per year. It can be said that it is in the ascendant. It is estimated that in 6-7 years, high-pressure water jet cleaning technology will account for Absolute advantage is the only way for China's industrial cleaning. ^[1]