Maintenance of Shell & Tube Exchangers
Although shell & tube exchangers are long-lasting and trouble-free devices, they can be subject to deformations and dirt from external factors. With regular maintenance, they can operate at optimum performance for many years.
Shell & tube heat exchangers are used in all types of processes. There are many different types within their own category, each requiring maintenance suited to its application area. Maintenance periods vary according to the process in which the shell & tube exchanger is used. Using the correct chemicals and methods for cleaning is very important. Incorrect cleaning methods and chemicals can damage the tubes and may lead to repairs or even replacement of the exchanger instead of maintenance. Therefore, it is recommended that cleaning and maintenance be carried out by expert teams.
MIT's expert staff provides cleaning, maintenance, and repair services for every type of shell & tube exchanger. Maintenance and cleaning operations are completed as quickly as possible and delivered to your facility with its original performance. In addition to cleaning, internal tubes that have corroded or deformed over time can be replaced individually or in bundles, depending on the structure of the shell & tube exchanger. During this process, a selection can be made from different tube materials.
Maintenance and Repairs of Shell & Tube Heat Exchangers
- The condition of the fixtures on the exchanger installation should be frequently checked to ensure they are secure.
- The exchanger should be drained once a month through the drain valve to clean any sediment accumulated at the bottom.
- Maintenance should be performed on the exchanger at least once a year.
- In cases where the water quality is not suitable (hardness levels; hard water, very hard water, etc.) and at high temperatures, it is more appropriate to perform maintenance at shorter intervals.
- During maintenance, the drain valve is removed and the water inside the device is drained. The device drainage should be connected to a waste line to prevent flooding in the boiler room.
- It is checked whether there is any sediment inside the device. If there is, the cleaning flange of the device is opened and the necessary procedure is performed with the appropriate cleaning method.
- The following procedures are applied during maintenance:
- The hot water circuit is activated. The circuit and hot water production are checked.
- It is checked whether there is any water leakage from the device or connections.
- The safety valve is checked.
- It is checked whether the device temperature gauge is working; if not, it is replaced.
For maintenance and repairs, it is recommended to use MIT authorized services and original spare parts. Our company is not responsible for applications made by unauthorized persons.