CHARGING FRESH WATER HYDROPHORE ONBOARD SHIPS

A hydrophore system is used to maintain a constant pressure in the lines  supplying the various parts of the ship.

water is kept pressurised by an coloumn of compressed air.

STARTING OF SYSTEM FROM SCRATCH.

1.put both the pumps in manual and start one pump to fill up the   hydrophore tank from the  main fresh water tanks. Fill up more than half of the gauge glass and then    close the main outlet to the consumers.

2.Now open the  air charging valve and pressurise up to 4.5 bar  in the pressure gauge attached to the tank.And now open main consumer  valve.

3.Now the pumps  can be put in auto and must be checked  for auto cut-in and cut-off.

4.When  the consumers are started and pressure falls to 3.5 bar the pumps cut in to fill up the hydrophore tank  from main tanks.

5.The pump  cuts off when  the pressure rises to 4.5 bar.

Equipments & Mountings Of Hydrophore System

1. Fresh water pump ( 1 and 2)
2. Vent
3. Suction and discharge valve
4. Non return valve
5. Hydrophore tank
6. Low pressure air line (4.5 bar)
7. Pressure switch
8. Fresh water tank
9. Pressure gauge
10. Inspection gauge
11. Gauge glass
12. Relief valve