Shandong Zhilin Environmental Protection Technology Co., Ltd.

What are the advantages and disadvantages of heat exchangers? A heat exchanger manufacturer tells you.

Release time:

2021-12-01 10:11

Source:

Heat Exchanger Manufacturer Tells You the Advantages and Disadvantages of Heat Exchangers: Advantages: (1) The tube bundle can be extracted, facilitating cleaning of the tubes and shell path. (2) The temperature difference between the media is not limited. (3) It can operate at high temperatures and high pressures, generally below 450 degrees and at pressures less than or equal to 6.4 MPa.

Heat Exchanger Manufacturer Tells You the Advantages and Disadvantages of Heat Exchangers:

　　Advantages:

　　(1) The tube bundle can be extracted, which facilitates cleaning of the tubes and shell path.

　　(2) The temperature difference between the media is unrestricted.

　　(3) It can operate at high temperatures and pressures; generally, the temperature is below 450 degrees, and the pressure is less than or equal to 6.4 MPa.

　　(4) It can be used in more severe conditions.

　　(5) It can be used in situations where pipeline processes are easily corroded.

　　Disadvantages:

　　(1) Small floating heads are prone to internal leaks.

　　(2) High consumption of metal materials, cost is 20% higher.

　　(3) Complex structure

　　Heat Exchanger Manufacturer Tells You the Manufacturing Process of Heat Exchangers:

　　Select the manufacturing materials and trademarks of heat exchange equipment. After checking the chemical composition and mechanical performance of the materials, perform shaping and correction of the steel plates. Methods include manual shaping, machine shaping, and flame shaping correction. Preparation - dashed line - cutting - edge processing (nondestructive testing) - forming - assembly - welding - welding quality inspection - assembly welding - pressure test quality inspection. Chemical equipment must not only check raw materials before manufacturing but also check them at any time during the manufacturing process.

　　Heat Exchanger Manufacturer Tells You the Precautions for Heat Exchangers:

　　1. Keep the pipe network clean. Before or after operation, the pipeline network needs to be cleaned. This is to prevent the heat exchanger from clogging. In addition, pay attention to cleaning the descaler and filter in time to ensure the smooth completion of the entire work. 2. Strictly check the softened water. Water quality control is very important. On the premise of softened water treatment, carefully check the water and softened water problems in the system first. Only after confirming that they are qualified can injection treatment be carried out. 3. New system test. For some new systems, they cannot be immediately alternated with the heat exchanger. First, the new system can run for a specified period to have an operating mode, and then integrate the heat exchanger into the system. This is to prevent impurities in the pipe network from damaging the heat exchanger equipment.

　　Heat exchangers are often used in the industrial production of petroleum, chemical industry, light industry, pharmaceuticals, and energy, for heating low-temperature fluids, cooling high-temperature fluids, vaporizing liquids into steam, or condensing steam into liquids. Heat exchangers are unit equipment such as heaters, coolers, and condensers. They are also components of any process equipment, such as heat exchangers inside ammonia synthesis towers. Heat exchangers are important unit equipment in chemical production. According to statistics, the tonnage of heat exchangers accounts for about 20%, or even 30%, of the total process equipment, and their importance can be imagined.

　　Heat Exchanger Manufacturer Tells You About Shell and Tube Heat Exchangers: Shell and tube heat exchangers are products with large quantities and varieties, and there is an urgent need for new wear-resistant, corrosion-resistant, and high-strength materials. China has made various advances in the development of stainless steel copper alloy composite materials, aluminum-magnesium alloys, silicon carbide and other non-metallic materials, among which titanium has developed rapidly. Titanium has good corrosion resistance to seawater, chlorine-alkali, acetic acid, etc. For example, if heat transfer is enhanced, the effect will be better, and some manufacturing units have better mastered the processing and manufacturing technology of titanium. Regarding material spraying, China has introduced production lines from abroad. Aluminum-magnesium alloy has high corrosion resistance and thermal conductivity, and its price is lower than titanium, so pay attention. Domestic research on improving the performance of heat exchangers in terms of energy efficiency, improving heat transfer efficiency, reducing heat transfer area, reducing pressure drop, improving the thermal strength of the device, etc., has achieved remarkable results. The extensive use of heat exchangers has effectively improved energy utilization, reduced enterprise costs, and increased efficiency.

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