SE445128B - Arrangement for the transformation of a small amount of water with high pressure to a large amount of water with low pressure - Google Patents

Abstract

The relevant invention concerns an arrangement for the transformation of a fluid flow with a small volume per unit of time and high pressure, to a fluid flow with a large volume per unit of time and with low pressure or vice versa.The arrangement consists of a water turbine (4) with a relatively small diameter which via a cog wheel (5, 6) drives a propeller pump (7) with a large diameter. The turbine (4) and propeller pump (7) have separate declivity regarding their riser pipes (3, 8).In such water flow transformers, there is usually a machine construction which can be used, amongst other things, for the extraction of useful materials from sea water via the use of extractors, whilst the turbine can be driven by, for example, wave power with extraction from the sea of metals like uranium, molybdenum, vanadium etc., which have low concentrations in the sea water, whereby huge amounts of water must be processed.Another area of use is to anchor the installation in a sea current so that the turbine and the propeller wheel combine for the operation of an electricity generator, preferably from the turbine wheel's axle.<IMAGE>

Description

8405486-5, the filters (9), without these get their water from cleaner deep-lying water layers via the riser (8) which is drawn down to a suitable depth so that non-effluent water from the filters is sucked into the riser (8) . If further control of water volume and pressure on the filters is desired, the propeller pump (7) can be designed as a Kaplan turbine with adjustable propeller, alternatively the turbine (4) can be equipped with guide rails with which speed and power can be regulated. The invention provides a simple, robust and reliable construction which is cheaper and has a significantly higher efficiency than a combination of turbine with electric generator, which drives a propeller pump equipped with an electric motor, which is a conceivable but more clumsy and more expensive alternative and which requires gearboxes, multi-pole machines, power plant, cabling, regulators for voltage in addition and much more service and maintenance. All construction materials can be made of corrosion-proof material such as fiberglass-reinforced plastic, which is very important.

The gears (5) and (6) can be placed according to Fig. 1, but there is nothing to prevent them from being placed elsewhere, preferably opposite each other on the axles of the turbine (4) and propeller pump (7), see Fig. 2. Other arrangements are also conceivable. within the scope of the invention. The device can of course also be driven in the opposite direction if such a need should exist in other contexts, for example when utilizing sea currents (14) for electricity generation, see Fig. 4.

This is an example of the transformation of low-value energy into high-value (low gradient to high gradient). The fast-running turbine is "helped" by the slow-moving propeller. The turbine has an electric generator on its shaft. The entire device is anchored in a sea current in a manner known per se. a 8405486-5 The electricity generator can then be made small and low-pole.

By opposite direction, previous paragraph, is meant when you want to convert a large amount of water with low pressure to a small amount of water with high pressure.

Console (s) combine the riser smoke (s) and the fan tube (s) alt. they are riveted, welded or cast together on either side of the gap (l2). The bearing holders are designed as spokes (l3), preferably 3 with a 120 ° offset.

The gap (l2) is made as small and narrow as possible so that unnecessary "water spillage" is kept down between and from the risers (8) and (3).

Claims (3)

8405486-5 4 PATENT CLAIMS. Device for the conversion of small amounts of water by 3. 5. 7. large pressure to large amounts of water with low pressure is characterized in that the small amount of water with large pressure is allowed to pass through a water turbine (4) Equipped with gears (5), which drive a propeller pump (7) with a large diameter provided with gears (6) and that the gears (5 and 6) engage each other and that the water turbine has a downcomer (3) and the propeller pump has its own riser (8), and that the pipes (3 and 8) has a common gap, where the gears interlock. Device according to Claim 1, characterized in that the turbine (4) has a guide rail for speed and power control. Device according to claim 1, characterized in that the propeller pump (7) has an adjustable propeller as in a Kaplan turbine so that the angle of the propeller blades to the water flow can be varied. Device according to claims 1-5, characterized in that all construction material in turbine (Å) and propeller pump (7) is preferably made of corrosion-proof material, for example fiberglass-reinforced plastic. Device according to claims 1-4, characterized in that the bearing holders (1)) are designed as spokes, preferably 3 with 120 'displacement, which are fastened in the downcomer (3) resp. the riser (8). Device according to claim 1. -5 characterized in that the gears (S and 6) are mounted opposite each other on the turbine and the propeller wheels which may be 2. - or 3. - or multi-leafed. Device according to claims 1-4, characterized in that the gears (5 and 6) are mounted opposite each other on the turbine and the propeller pump shafts but differently than on the turbine and propeller wheels. - ~. --._....-.._.___ _