Salt Water Pumps on Fishing Boats
One problem for fishing fleet operators is the short life of certain salt water pumps. In particular the salt water pumps used for cleaning on the fishing vessels. The second problem relates to the hazard and inconvenience of electric motors and connectors in the wet environment. The fishing fleet goes to sea for six weeks at a time. It leaves with an empty hold and returns with frozen fillets of fish, ready for the wholesalers. The cleaning and packaging operation takes place in the boat while at sea. The operators must keep the cleaning and packaging area clean and cannot afford downtime.
The short life of the certain salt water pumps (plunger pumps) was due to the quality of the water being pumped. The fishing vessel uses sea water which has just enough abrasive material in it to cause the failure of the plunger pumps. Screening, filtering and other cumbersome attempts had been made to clean the water sufficiently enough for the plunger pumps. Hydra-Cell salt water pumps, have no cups, packings or seals, and can easily handle sea water and the minor debris in it.
To drive the Hydra Cell salt water pumps, there was ample hydraulic pressure on the boats - a clean, efficient way to eliminate the electrical concerns.
Salt Water Pumps for Undersea Operation
The Hydra Cell Salt Water Pumps have been successfully pumping sea water for years, but here's an application where the salt water pump goes under and becomes part of the sea. A remote-controlled rescue submarine, called the Remora, for a parasitic fish that attaches itself to larger creatures, incorporates an H25 salt water pump into its system. The Remora locks itself on to the hatch of a disabled sub and the H25 salt water pump is used to pump the salt water out between the two vessels so that both hatch doors can be opened to allow the crew of the disabled sub to safely escape into the rescue sub. The salt water pump and motor are actually mounted outside of the unit and operate to depths of 1,640 feet (500 m). Certain modifications were necessary to adjust for the pressure difference in the oil cap and shaft seals.
Salt Water Pumps Assist Divers
A natural sponge supplier sends divers underwater for long periods of time to collect sponges. In order to optimize their sponge gathering, the divers want to stay submerged as long as possible. Unfortunately, the ocean water temperature is too cold to allow them to stay submerged as long as they would like, even when they are wearing wet suits. To solve this problem, they purchased a D10 salt water pump to pump hot sea water into the diver's suits keeping them warm. The umbilical cord connected to the diver (one set of lines supplies oxygen, one set supplies the hot water) directly from the surface or through a hyperbolic bell. The Hydra-Cell salt water pump was selected due to its ability to handle salt water, various temperatures and varying the drive speed, flow and pressure as temperature requirements change. This is important since they dive in many different environments and different "modes".
- The seal-less nature of the Hydra-Cell diaphragm pumps enable charged and dirty liquids to be processed without need for fine filtration to protect the diaphragm pump.
- The Hydra-Cell diaphragm pump needs little maintenance and can operate at continuous duty at high pressure.
- Pulsation is low, so dampeners may not be required for most Hydra-Cell® diaphragm pumps.
- Hydra-Cell® diaphragm pumps can handle solids up to 500 microns, or more. They can be pumped without fine filtration. System costs are reduced and maintenance is simplified.
- Most diaphragm pumps in the Hydra-Cell® diaphragm pump range can operate at any pressure from <1 bar up to at least 70 bar. Some models up to 170 bar.
- Seal-less design distinguishes the Hydra-Cell® diaphragm pumps from other diaphragm pumps and is the basis of its long service life - many of the liquids pumped are harmful to pump seals. The Hydra-Cell® diaphragm pumps are tolerant of small solids, resistant to chemical and corrosive attack.