Seek advice on precautions for using coiled tube heat exchangers
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Hello, everyone: Could you please share some guidelines for using coiled tube heat exchangers? Thank you!
1. Cleaning requirements: Although they can all be cleaned, they are not recommended for use in places with high cleaning requirements. Otherwise, it will be very difficult to provide explanations during customer verification and other checks, and a bunch of data will have to be provided as support. 2. Whether the gas phase carries entrained material. Gas-phase entrainment of materials is also not recommended. Of course, you can do filtering and so on. From my personal point of view, I do not recommend using it. One more thing: if a leak occurs, it’s more difficult to locate the source of the leak. But since you’re already using it, it’s not really something that needs to be a concern. There are no other sensations that require special attention. The heat exchange efficiency of the coiled tube is quite good.
I personally recommend it for solvent recovery after vacuum pumps. Condensation of drying exhaust gas. Heat exchange of relatively clean materials. and other aspects.
The shell side of a coil heat exchanger must contain a clean fluid, as cleaning such heat exchangers is particularly difficult
I’ve learned that before, I only knew that shell-and-tube heat exchangers had significant advantages in multi-stream heat transfer scenarios. May I ask what materials can be used for the tubes in a coiled tube heat exchanger? Is heat treatment required after the tube is wound?
The tubes in coiled tube heat exchangers can be either welded steel tubes or seamless steel tubes; seamless steel tubes are generally used for applications with high pressures, while welded steel tubes are preferred for those with lower pressures. The material of the heat exchange tubes can be stainless steel or carbon steel; stainless steel tubes usually do not require heat treatment
The manufacturer will provide you with professional training
This post was last edited by GYS69 on 2018-6-29 at 12:53. 1. Keep the pipeline network clean. The pipeline network must be cleaned both before and after operation, with the aim of preventing blockages in the heat exchangers. It is also important to clean the dirt removers and filters in a timely manner to ensure the smooth completion of the entire process. 2. New system testing. For some new systems, it is not possible to start using heat exchangers alternately right away; first, the new system needs to operate for a specified period of time so that its operating mode can be established. Only after that can the heat exchangers be integrated into the system. The purpose of doing this is to prevent impurities in the piping network from damaging the heat exchanger equipment.
In operation, coil-type heat exchangers are not much different from conventional shell-and-tube heat exchangers; in fact, they are even more durable. However, in conditions with high levels of corrosion and impurity particles, appropriate measures must be taken, such as using corrosion-resistant materials, installing filtration devices, implementing monitoring systems when necessary, and carrying out regular cleaning