Description
Anti-scale and Anti-corrosion solutions for ship’s thermal and cryogenic installations
The water used by ships and most vessels includes fresh water, sea water and boiler water. All cooling systems in the ship are cooled by a freshwater circuit called Low Temperature (LT). LT water is used to cool generators, compressors, cold stores, oils, diesels and…. In addition, the LT system is integrated for cooling the main engine oil as well as cooling the HT water, depending on the type of ship or any other vessel.
The HT (High Temperature) system is specific to the main engine. The HT system is jacket water closed cycle of the main engine which, enters the HT cooler and is cooled by LT water after cooling the engine body and passing the Engine Air Cooler.
The Sea Water system on the ship and other vessels has an open system which is used in the Heat Exchanger depending on the type of vessel to cool the LT water.
The water used for the boiler of the vessel is necessarily distilled water and the system is closed cycle. The water boiler system has two parts, the water inlet to the boiler and the water drum boiler. Due to the corrosive nature of distilled water due to its low pH and dissolved oxygen content, it causes corrosion in boiler installations. The use of the MKS1148 Ship Industrial Mitreh for Boiler protects the plant from scale and corrosion and extends the useful life of the installation due to its anti-corrosion and anti-scale properties.
Due to the tightness of the water pipes in some of the LT and HT water paths, the presence of the least amount of scale causes clogging and disruption to the system, thus preventing the formation of scale in this type of system is a priority. The Ship Industrial Mitreh for refrigerant system MKS1061 can be injected into the system via the LT Expansion Tank to prevent scale formation and prevent corrosion. Industrial Mitreh (MKS1144) can also be injected into the HT water system via the HT Expansion Tank to prevent scale formation and corrosion. The Mitreh solution has a neutral pH and, while it does not cause any corrosion in the facility, it also reduces the corrosion rate of the water, thus acting as an Inhibitor Corrosion.
Tests such as nitrate, chloride, and hydrazine tests are commonly performed at the ship’s engine room because of the substances used to prevent and control sediment formation and corrosion at the facility. In case of using a Ship Industrial Mitreh, the need to control and maintain such parameters is minimized.
Calibration of using Ship Industrial Mitreh Solution:
In order to accurately calculate the amount of controlling substances, it is necessary to submit the analysis of water consumption to the experts of the technical office of Abrizan Company to provide the most precise amount of consumption and best practices to you based on the system analysis and process. If you do not have enough information, use table F9 for HT systems, table F10 for LT systems, and table F11 for boiler water due to the water hardness.
Table F10 – Calibrated for the use of Ship Industrial Mitreh Solution – LT system (MKS1061) | |||
No. | Water Hardness (ppm) | Amount of Solution for 1000 L Water | Description |
1 | 0-40 | 250 | |
2 | 40-80 | 500 | |
3 | 80-120 | 800 | |
4 | +120 | Consult the technical office |
Table F11 – Calibrated for the use of Ship Industrial Mitreh Solution – HT system (MKS1144) | |||
No. | Water Hardness (ppm) | Amount of Solution for 1000 L Water | Description |
1 | 0-30 | 250 | |
2 | 30-60 | 500 | |
3 | 60-90 | 750 | |
4 | +90 | Consult the technical office |
Table F12 – Calibrated for the use of Ship Industrial Mitreh Solution – boiler system (MSA1148) | |||
No. | Water Hardness (ppm) | Amount of Solution for 1000 L Water | Description |
1 | 0-20 | 200 | |
2 | 20-40 | 500 | |
3 | 40-60 | 800 | |
4 | +60 | Consult the technical office |
Reviews
There are no reviews yet.