33 results about "Below sea level" patented technology

A lighting assembly that incorporates a high brightness LED in a compact assembly that is sealed and sufficiently durable for a continuous operational range of between 350 feet below sea level and 35,000 feet above sea level. Further, the flashlight of the present invention includes a novel modular interface arrangement that allows the flashlight to be interfaced with a variety of different equipment or reconfigured in order to facilitate use for different functionality such as a marker light, a runway indicator light or a weapon mounted light.

Arrangement for mooring, loading and unloading of a vessel, comprising: a stationary inner tower with a lower end fixedly anchored to the seabed, from where the inner tower extends upwards through the sea to an upper end over the sea level, which inner tower at level close to the seabed has through connections for hoses and cables for transfer of load and signals, which hoses and cables are brought further up through the inner tower and out of its upper end; a yoke that in one end is rotatably fastened to the inner tower, wherefrom the yoke extends further outwards to at least one outer ballastable end wherefrom moorings are arranged to keep the vessel anchored, on which vessel devices are provided to connect the vessel with the moorings and said hoses and cables for transfer of load and signals. The mooring arrangement is distinguished in that it further is comprising an outer tower with rotatable fastening to the inner tower, which outer tower from the fastening to the inner tower extends upwards outside the inner tower to a level over the upper end of the inner tower, wherein the rotatable fastening is placed below sea level and also is comprising the fastening of the yoke, such that the outer tower and the yoke as one unit is freely rotatable over and around the inner tower that is stationary anchored to the seabed; and a swivel provided between the upper end of the inner tower and the upper end of the outer tower, for rotatable transfer of load and signals with said hoses and cables between the inner and the outer tower and therefrom further to the vessel.

This design addresses the problems in areas below sea level adjacent to coastal communities with shallow canals / inlets with high tides / surges entering the discharge piping outlets arranged for normal average mean sea levels from pumping stations with outflow into a reservoir / body i.e., lake, river or waterway that is affected during storms, hurricanes or heavy rains driven by winds and high tides that render pumping inefficient at least and / or inoperable at worst. Included in this design is an inlet of a manifold connected to the pump's discharge, a normal discharge outlet and a second optional bypass discharge piping outlet, elevated over or through a high wall. Also included is automatic / manual shutoff valves and variable speed drive motor. The bypass discharge outlet includes, prior to the distal end, an ancillary piping arrangement that allows portions of the discharge flow directed back into underground aquifers for water table replenishment to aid subsidence maintenance.

The invention discloses a system and a treatment process for seawater desalination treatment using geothermal resources, including a seawater intake unit, a raw water pretreatment unit located below the sea level, a geothermal heat extraction unit, and a suitable water head drop with the raw water pretreatment unit The raw water replenishment unit, the reverse osmosis unit and the temperature difference driven fresh water lifting unit; the geothermal heating unit outputs heat energy to the temperature difference driven raw water replenishment unit and the temperature difference driven fresh water lifting unit respectively through the heating pipe; the seawater is firstly treated by the raw water pretreatment unit The raw water replenishment unit is driven by the temperature difference to pressurize and enter the reverse osmosis unit. After the seawater is desalinated by reverse osmosis, the raw water is separated into fresh water and concentrated brine. The fresh water and concentrated brine are upgraded by the temperature difference to realize the conversion of geothermal heat energy into water potential energy. , to solve the current social problems of fresh water shortage.

The invention relates to a method of installing and implementing a rigid pipe (10) called a main pipe, in which method the following steps are performed: a) removing one end of said main pipe from a vessel or floating support (13) on the sea surface lowering below sea level to connect the main pipe to submerged submerged equipment (16) in this position, preferably on the seabed (17); and b) subsequently keeping the main pipe submerged for a specified period of time, characterized by consists in passing said main pipe (10) into a cylindrical opening (4) of circular cross-section of a stress limiting device, said opening comprising a rigid support structure (9) firmly attached to said vessel or floating support device The inner lubricious coating (3), thereby enabling the main pipe to be in sliding contact with said lubricious coating during steps a) and b).