Marine Electrically and Steam Heated Calorifier
Marine calorifiers, also known as hot water tanks, can basically be divided into marine electrically heated calorifier, marine steam heated calorifier, and their combined forms (marine electrically and steam heated calorifier).
Marine calorifiers play a significant role in the operation of ships. It mainly undertakes the crucial task of assisting ships in effectively using the fresh water stored in the fresh water pressure tanks to replenish the hot water tanks. Usually, they are connected and operated in series.
Marine hot water tanks can continuously supply the pressure hot water required for daily life to ships or drilling platforms by means of steam or the clean water in the electrically heated tanks. This supply is for the entire ship and aims to meet the daily life needs of all personnel on board.
It is worth noting that for ships, marine pressure hot water tanks are key auxiliary equipment to ensure the stable operation of various equipment. Their stable and reliable performance provides indispensable support and guarantee for the normal operation of ship equipment.
As a professional supplier of marine equipment, we have rich project experience and aim to provide you with excellent solutions. If you have relevant purchasing needs or questions, please contact us! Email <hs10@cqhisea.com>
Overview
Principle Overview
The marine electrically and steam heated calorifier is suitable for ships or platforms to use electricity or steam to heat fresh water for the use of crew members.
This hot water tank can be used in series with the fresh water pressure tank on the ship, that is, the fresh water in the fresh water pressure tank is used to replenish this tank, and after being heated by the electric heating or steam heating components, it is used for the whole ship.
Temperature controller: The water temperature in the tank is controlled by two pressure-type temperature controllers; if the water temperature in the tank is lower than 50°C, the power is automatically connected and the electric heater starts heating; if the water temperature in the tank is higher than 65°C, the power is automatically cut off and the electric heating stops heating.
Float level switch: It is used to protect the electric heating. If the liquid level in the tank is lower than the float level switch, the electric heater is automatically disconnected.
Pressure gauge: Displays the pressure in the tank.
Thermometer: Displays the water temperature in the tank.
Safety valve: When the pressure in the tank exceeds 0.42 MPa, the safety valve opens to release the pressure in the tank.
Note: When installing the safety valve, it is forbidden to wrap the raw material tape around the inlet of the safety valve.
Electric control box: The control of this hot water tank is divided into manual control and automatic control. When the changeover switch SA2 is turned to "Manual", the electric heater starts heating, and when the water temperature in the tank reaches 65°C, the electric heater stops heating. When the changeover switch SA2 is turned to "Automatic", if the temperature in the tank is lower than 50°C at this time, the electric heater automatically starts heating until it reaches 65°C and then stops heating.
If the float level switch detects that there is no water in the tank, the electric heater controlled by the electric control box will not work. For hot water tanks with two or three sets of electric heaters, due to the large power of the heaters, the device will adopt a segmented heating method to achieve. One set of heaters controlled by the electric control box works, and after 1 minute, another set of electric heaters starts to work, and so on, until the water temperature in the tank reaches 65°C and all stop heating.
Technical Parameters
Model | ZDR- | ||||
0.12 | 0.2 | 0.3 | 0.5 | 1 | |
Capacity（m3） | 0.12 | 0.2 | 0.3 | 0.5 | 1 |
Working pressure（MPa） | 0.4（60℃） | ||||
Design pressure（MPa） | 0.44 | ||||
Test pressure（MPa） | 0.68 | ||||
Safety valve open pressure（MPa） | 0.42 | ||||
Water inlet temperature（℃） | 15 | ||||
Water outlet temperature（℃） | 65 | ||||
Working temperature（℃） | 0~65 | ||||
Design temperature（℃） | 80 | ||||
Steam pressure （MPa） | 0.3 | ||||
Heated water capacity（kg/h） | 275 | 450 | 750 | 1200 | 3250 |
Steam consumption（kg/h） | 27.5 | 45 | 75 | 120 | 325 |
Heated water capacity（kg/h） | 90 | 140 | 180 | 280 | 540 |
Electrical heating power（kW） | 6 | 9 | 12 | 18 | 36 |
Electricity | AC380/50Hz/3φ, AC440V/60Hz/3φ(Optional) | ||||
The thickness of the external thermal layer（mm） | 40 | ||||
The thickness of outer galvanized sheet steel（mm） | 0.7 | ||||
Operating methods
1 Adjust the temperature control range
1.1 Set the low-temperature setting of the temperature regulating valve to 50°C and the high-temperature setting to 60°C.
1.2 Set the low-temperature temperature controller to 50°C and the high-temperature temperature controller to 60°C.
2 Set the popping pressure of the safety valve
2.1 Set the popping pressure of the safety valve. When the pressure in the tank exceeds 0.42 MPa, the safety valve pops to release the pressure in the tank.
3 Normal operation
3.1 Open the inlet and outlet valves, start the electric heater. It starts automatically when the temperature in the tank is lower than 50°C and stops until it reaches 65°C.
3.2 If steam heating is used, start the temperature regulating valve. It opens automatically when the temperature in the tank is lower than 50°C and closes until it reaches 60°C.
3.3 If the electric heater is used, start the electric heater. It opens automatically when the temperature in the tank is lower than 50°C and closes until it reaches 60°C.
Conclusion
If you have the need for procurement, you are welcome to visit our marine calorifier homepage or contact us at any time! Thank you again for your browsing!
