Power installation for long stroke low noise and work underwater vehicle

 

The invention relates to an underwater shipbuilding, in particular power plants underwater vehicles. The power plant consists of a chemical reactor with a high-energy fuel, and a nozzle unit, a thermal battery placed in it the elements of a chemical reactor and a high-energy fuel. The nozzle block is provided with a device for changing the height of the injection of oxidant. The heat transfer system is made in the form of a tubular helical coil with a porous outer surface and provided with a loop with the working environment, hasanaginica, gas cooler and gasolinefueled and cooling system. The Converter of thermal energy into mechanical work is done in the form of a turbine, the rotor of which is connected to the generator rotor, the shaft of the supercharger working environment and starting the drive. Achieved an increase in underwater Autonomous underwater vehicle and simplification of construction power plant. 2 Il.

The invention relates to the field of submarine construction, and more particularly to independent from ambient air sources of energy for underwater vehicles and can be used for the upward air.

Known electrochemical generator, which is the basis of power plants that are not dependent on atmospheric air, in which the oxidant and reductant are oxygen and hydrogen, having a high specific chemical energy. The reaction of the compound of oxygen and hydrogen is completely silent, and the efficiency can reach ~60%.

The most significant drawback of electrochemical generators is fire and explosion hazards of their chemicals - oxygen and hydrogen. In addition, the necessary reagents have large overall dimensions, and frequent recharging of cylinders with reagents requires ascent to the surface or return to base (magazine "Shipbuilding abroad", 8, 1989, L. 17...23).

Also known chemical reactor and method of initiating the reaction of lithium-based perchlorate aluminum or sodium (French patent 2565677).

The disadvantage of this chemical reactor is the gas sharply deteriorating the controllability of the process oxidant.

Also known Autonomous power supply unit, not dependent on the surrounding marine environment, consisting of a chemical heat source, heat transfer and engine Stirlin the m and sulfur hexafluoride, as heat transfer medium is sodium (TDC and weapons, 1977, 6, page 19...28). In the setting of high-energy fuel. The reagents are explosion-proof and non-toxic. This setting is adopted as a prototype.

Its disadvantage is the lack of energy content (okolo kWh) when large sizes (6, 2, 5 and 3), PI and use in the heat transfer process of sodium.

The invention solves the problem of increasing underwater Autonomous underwater vehicle by increasing the supplying energy to birds source of thermal energy while maintaining acceptable size of the power plant and the simplification of its design, does not require the use of sodium.

To achieve this, the technical result of the energy installation submersible, consisting of a chemical reactor with a high-energy fuel and nozzle unit, tanks with stockpiles of chemical fuel and oxidant, system heat transfer with the heat transfer elements and a channel with a gaseous working medium, Converter of thermal energy into mechanical work and heat insulation, equipped with a thermal battery placed in it the chemical elements is the height of the injection of the oxidant, for example, sulphur hexafluoride, placed under the surface of the molten fuel and piped to the valve with the tank oxidizer, made as a group removable cylinders placed outside of the hull underwater vehicle, for example in the superstructure, while the heat transfer system is made in the form of a tubular helical coil with a porous outer surface, filled with lithium located around the nozzle block, and provided with a loop with the working environment, such as helium, hasanaginica, gas cooler and gasolinefueled and cooling system sea water pump, while the Converter of thermal energy into mechanical work is done in the form of a turbine, a rotor which is connected to the generator rotor, the shaft of the supercharger working environment, such as a compressor, and a trigger actuator, and all fuel, providing the specified Autonomous underwater vehicle, is placed in thermal battery, and together with the products of combustion serves on the heat storage material and a heat insulation zone of chemical reaction of combustion.

A distinctive feature of the proposed power plant from the above-mentioned known, is closest to it, himicheskogo reactor and a high-energy fuel, for example, lithium, and the nozzle block provided with a device for changing the height of the injection of an oxidant, such as sulphur hexafluoride, and placed under the surface of the molten fuel and piped to the valve with the tank oxidizer, made as a group removable cylinders placed outside of the hull underwater vehicle, for example in the superstructure, while the heat transfer system is made in the form of a tubular helical coil with a porous outer surface, filled with lithium located around the nozzle block, and provided with a loop with the working environment, such as helium, hasanaginica, gas cooler and gasolinefueled and cooling system sea water pump, when the Converter of thermal energy into mechanical work is done in the form of a turbine, the rotor of which is connected to the generator rotor, the shaft of the supercharger working environment, such as a compressor, and a trigger actuator, and all fuel, providing the specified Autonomous underwater vehicle, is placed in thermal battery, and together with the products of combustion serves on the heat storage material and a heat insulation zone of chemical reaction of combustion.

Thanks to the availability of the of energopac heat accumulator with fewer heat-retaining material and a smaller size of the heat accumulator.

The placement of the nozzle block in the volume of the heat storage material and the location around him tubular helical coil with a porous coating, filled with lithium, which protects the coil against corrosion and improves heat transfer, provides better utilization of this heat and reduces its losses. Replacement of the Stirling engine prototype turbine with higher efficiency (72% vs. 32%), and the use of fuel as a heat storage material to reduce weight and thermal characteristics of the battery, increase the efficiency of the power plant. The important factor is the placement zone of chemical reaction in the fuel mass that performs as a thermal protection. In addition, the feasibility of combining a chemical reactor with a thermal battery confirms the difference of heat capacity lithium ~ 2 KWh/kg and supplying energy to birds ~13 kWh/kg. This allows for the same amount of fuel by burning it remove from heat accumulator in ~6 times the quantity of thermal energy.

The proposed power plant is illustrated in the drawings.

The figure 1 presents a schematic diagram of the and 2, the Stirling engine 3.

The figure 2 presents a schematic diagram of the proposed power plant.

It includes: heat accumulator 1, thermal protection 2, the heat storage material - chemical fuel 3, tubular coiled coil 4, the contour of the working environment 5 with locking valves 6, 7 regulatory, 8 turbine, generator 9, gasolineethanol 10, the gas cooler 11, the cooling pump 12, the cooling system 13, hasingredient 14, block nozzles 15, the pipe feeding the oxidant with 16 valves: control 17, the bypass 18, 19 locking cylinders with the oxidizer, made from the hull of the underwater device 20, the system electroresistive fuel 21.

For the preparation of the power plant to start the heat storage material 3 fuel warmed by the system electroresistive 21 to ~750o. At the same time heating of the turbine with its periodic turning. After heating fuel 3 and heating of the turbine 8 is activated actuator actuator (not shown) resonantes 10, sitting on his shaft, then after 10 minutes in the chemical reaction zone through the jet nozzle unit 15 to the pipe feeding the oxidant 16 through the open control valve 17 when open is I. After 5.. . 10 minutes in the zone of the tubular spiral coil 4 is set to a temperature of ~850ostarting the drive from shaft resonantes 14 is disabled and the open stop valve 6 opens the valve 7 and the turbine 8 takes the pressure starts cooling pump 12 and the cooling system is in effect..

Power plant works as follows. Released by periodic burning of the molten fuel heat supports in thermal battery 1 to the desired temperature (for lithium ~850o) that provides heating in a tubular helical coil 4 of the working environment, such as helium, to a predetermined temperature, and feed it through the pipeline circuit of the working medium 5 through the open stop valve 6 power regulation valve 7 to the turbine 8, which converts thermal energy into mechanical work on its shaft connected to the generator rotor 9 and shaft resonantes 10. The exhaust turbine gas enters hasingredient 14, where it gives up part of the remaining heat of the gas directed into the tubular helical coil 4. Gas, gave warmth in hasanaginica 14, flows into the gas cooler 11 for cooling it down to allow it to flow in gasonly coil 4 heat accumulator 1.

Managing the installation made by the scheme provide the required load and is carried out by controlling the flow of the working fluid (gas environment) valve 7, the temperature in the heat accumulator through periodic supply of oxidant in the reaction zone valve 17 and maintaining the average pressure in the circuit of the working fluid through the connection circuit cylinder with high pressure.

The proposed power plant provides the explosion and non-Flammability of the reactants of a chemical reaction, the inertia of an oxidant at a temperature of up to 150oabsolute non-toxicity, allowing the use of chemical fuel in closed compartments without systems Feltrinelli, as well as the course of the reaction without the formation of gaseous products and the high specific energy and specific power output.

At moderate IYC, allowing its placement on the PA, the power plant has the necessary underwater autonomy and when refilling heat accumulator does not require output setup steps and ascent to the surface.

Almost the duration of the underwater autonomy is determined by the amount of reactants of a chemical reaction, will popolnenie the combination of a chemical reactor with heat storage and use as thermal storage material chemical fuel. The room is just adequate supply of fuel in the heat accumulator ensures its maintenance in immediate readiness to join in the reaction with the oxidizer. This uses the heat remaining after heating of the working medium in the tubular helical coil. Thus, the fuel continues to play a role of thermal insulation. In addition, the placement of the coil in the amount of molten fuel near a zone of chemical reaction increases the efficiency of heat transfer to the working environment and eliminates the need for intermediate flammable coolant sodium.

All of the above, as well as replacement of the Stirling engine, which has a complex manufacturing technology, turbine with two times greater efficiency provides a significant increase in the efficiency of power plants, fuel economy and increases the Autonomous underwater vehicle.

Claims

Power installation for long stroke low noise and work submersible, consisting of a chemical reactor with a high-energy fuel and nozzle unit, tanks with stockpiles of chemical fuel and oxidant, system heat transfer with the heat transfer elements and channel Rabochaya fact, that power plant equipped with a thermal battery that holds elements of a chemical reactor and a high-energy fuel, such as lithium, and the nozzle block provided with a device for changing the height of the injection of an oxidant, such as sulphur hexafluoride, placed under the surface of the molten fuel and piped to the valve with the tank oxidizer, made as a group removable cylinders placed outside of the hull underwater vehicle, for example in the superstructure, while the heat transfer system is made in the form of a tubular helical coil with a porous outer surface, filled with lithium located around the nozzle block, and provided with a loop with the working environment, for example helium, hasanaginica, gas cooler and gasolinefueled and cooling system sea water pump, while the Converter of thermal energy into mechanical work is done in the form of a turbine, the rotor of which is connected to the generator rotor, the shaft of the supercharger working environment, such as a compressor, and a trigger actuator, and all fuel, providing the specified Autonomous underwater vehicle, is placed in a heat accumulator and together with the products of the combustion.

 

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