First, the principle and role of reboiler
Reboiler is a heat exchanger that can reboil the fluid in the heat exchange process. Its main principle is to flow in the heat exchanger through the pipeline inside the low-pressure steam or other liquids, in the process of heating to produce a one-time boiling, and then in the process of continuing to heat the process of reboiling, thereby improving the efficiency of heat transfer.
Reboiler is mainly used in chemical, petroleum, food, pharmaceutical and other industries, in the steam generator, air conditioning systems, distillation equipment and other fields play an important role. Among them, it is most widely used in the evaporator, which can greatly improve the heat exchange efficiency and also save energy consumption. In addition, the reboiler can also be used to heat low-quality fluids, such as oil, water, sewage and chemicals.
Second, the advantages and disadvantages of reboiler
Compared with other types of
Heat Exchangers, reboiler has the following advantages:
1. energy efficient: reboiler can be released in the heat transfer process to make full use of latent heat, improve the efficiency of heat transfer, but also to save energy consumption.
2. High-speed heat transfer: In the process of heat transfer in the reboiler, due to the one-time boiling and reboiling, so the heat will be transferred quickly, so that high-speed heat transfer can be carried out.
3. Wide range of applications: reboilers are widely used in many industries, such as chemical, petroleum, pharmaceuticals and so on.
However, the reboiler also has certain disadvantages:
1. easy to produce oscillation: due to the presence of a large number of bubbles in the reboiler fluid, so in the process of heat transfer is prone to oscillation, thus causing some damage to the equipment.
2. susceptible to scaling and corrosion: in the process of using the reboiler, due to the presence of high temperature and high pressure fluid, so it is susceptible to scaling and corrosion, thus affecting the heat transfer efficiency.
Third, the types of reboiler
Reboiler according to its internal structure, can be divided into the following categories:
1. shell and tube type reboiler: shell and tube type reboiler is the heating medium flow in the tube, while the cooled medium flows in the shell of the heat exchanger. Its structure is simple, easy to make, but also to meet the needs of large flow.
2. straight tube type reboiler: straight tube type reboiler is the heated medium and the heating medium flow in two separate pipelines, so as to achieve the process of heat transfer. Compared with shell and tube reboiler, its structure is more compact, but also can achieve higher heat transfer efficiency.
Fourth, the reboiler repair and maintenance
In the process of using the reboiler, it is necessary to carry out regular repair and maintenance to ensure its normal operation. Specifically include the following aspects:
1. Regular cleaning: regular cleaning of the reboiler internal, you can avoid scaling and corrosion, so as to ensure the efficiency of heat transfer.
2. Regular inspection: Regularly inspect the internal and external structure of the reboiler to ensure that it is in good operating condition and avoid equipment damage.
3. Installation of safety valves: In the process of using the reboiler, it is necessary to install safety valves to ensure that the equipment in the event of abnormalities can be automatically discharged pressure to ensure the safety of the operator.
Through the introduction of this article, we understand that the reboiler is a highly efficient heat exchanger, which can be widely used in the chemical industry, petroleum, food, medicine and other fields. At the same time, through regular repair and maintenance, can ensure the normal operation of the reboiler, to ensure the safety and reliability of the equipment.
Source: Reprint
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