CN1225596C - Submarine vessel - Google Patents

Abstract

The inventive vessel comprises a high-strength body having a power unit provided with a turbine and a turbogenerator which are arranged therein, a cooler provided with a water vapour condenser and a pipe for pumping condensate. In order to improve operational characteristics of said submarine vessel by reducing a noise level, the power unit of turbogenerator type is provided with a closed cooling circuit using a light-volatile liquid and a working fluid condenser which is arranged outside the high-strength body of the submarine vessel and thermodynamically connected to the water vapour condenser by means of said closed cooling circuit. The turbogenerator and the water vapour condenser are arranged in an exhaust nozzle of the turbine of the power unit in such a way that they form a vacuum cavity, thereby reducing a transmission of acoustic oscillations to structural elements. The cooling of the turbogenerator unit is carried out by extracting heat from outboard water circulating in the working fluid circuit. Said outboard water is supplied to a light body by gravity. A significant decrease of the noise level is obtained by cutting a pipe supplying the outboard water and a circulation pump off the cooling system when the power unit operates in low power mode.

Description

The naval vessels that comprise submarine and the boats and ships of noise level have been reduced

The present invention relates to shipbuilding, relate in particular to the naval vessels and the shipbuilding that comprise submarine, can improve noise characteristic owing to improve the cooling system of power plant.

Known have such naval vessels, its power plant are included in the gas turbine and the gas generator of work in the semiclosed loop, wherein the heat exchanger of hot air and precooler all are installed in the container of pressure, and gas turbine is contained on the basis of container, can guarantee to suppress effectively noise (No. 0302508, european patent application like this, B63G8/12,1989.02.08 announce), the shortcoming of this known configuration may be that its application has narrow limitation, the gas turbine device can only be used for, the power plant of turbine generation type can not be used for.

The known motor that has such thermal hydraulic type submerged delivery vehicle to use, it has part to fill expansion chamber with liquid, is filled with the separation of the variable volume of this liquid, and with the replacing system of this expansion chamber and the associating of variable volume separation.This replacing system can be applicable to liquid stream to be flowed into liquid stream and flows out from the cabin, flow at that time and the consumption of trickle near equating (No. 2227763, F.P., B63G8/08,1974.12.27 announcement).Still the separation that has the motor of structure proximate to have several variable volume, can relatively move mutually, in the stroke of engine operation partial periodicity, have two can be communicated with (No. 2227766, F.P. in these separations with expansion chamber, B63G8/08,1974.12.27 announces).The conclusive shortcoming of these known technologies is the noise that may increase motor, and this is that the solid disturbance that changes its consumption for the stream of liquid when load changes is accompanied by liquid and flows from laminar flow and turn to due to the turbulent flow.

Known have such naval vessels, promptly ice between the navigation ship, its cooling unit that is located at the turbine generation type power plant in the hull comprises that condenser and recycle pump reach the conduit of the pumping water of condensation that is communicated with betwixt, the ballast tank that is provided with filling and heating duct interconnects by the sea cock and valve cabin, the arm of cooling unit recycle pump is housed, the filling of ballast tank and heating duct then are communicated with (the CCCP of former Soviet Union patent a.c.1050957 with the exhaust outlet of the conduit of pumping water of condensation, B63B13/00,1983,10,30 publish), this known structure can improve the Economy of power plant of ship, because the heat exchange in cooling circuit is optimised.But when the used steam of cooling, can produce unnecessary water, remove the extraneous vibration that these unnecessary water can cause whole conduit system, thereby increase the overall noise level that power plant caused.The basic noise source of turbine generation type power plant can be to be sent and the airborne noise propagated in the medium around by turbogenerator at that time.The vibration of each operation mechanism that excites hull construction in addition and cause wherein has the vibration of self-circulating pump, the vibration of condenser bundles, and the occasion of this external employing outboard water, water enters from the outboard space and can cause the disturbance of current on recycle circuit in the ship.Therefore, although the cooling system of the turbo-generator installation of conventional construction is enhanced, with regard to noise level, these devices that are contained on the submerged delivery vehicle can't satisfy they requirements.

Known have such naval vessels, and it has the power plant that are located at the turbine generation type in the hull, comprises turbine and turbogenerator, also has cooling unit, comprises the conduit of condenser and pumping water of condensation, and it is selected as the correlation technique the most approaching with the present invention.

Task of the present invention is to improve the operating characteristic of submarine, and purpose is to reduce the noise level of turbine generation type power plant.

Task is to solve like this.In known a kind of naval vessels, in hull, be provided with the power plant of turbine generation type, comprise turbine and turbogenerator, and condensation device comprises the conduit of water vapor condenser and pumping water of condensation.According to the present invention, be provided with the additional conventional closed cooling loop that uses working solution and be located at the interior working solution condenser of above-mentioned hull, this condenser is got in touch with the water vapor condenser on heat power by additional conventional closed cooling loop, and turbogenerator and water vapor condenser are placed in the exhaust branch pipe of power plant turbine at that time.

In addition, select volatile liquid for use as working solution.

In addition, it is the hull that strong hull and lightweight easily penetrate that these naval vessels have two kinds of hulls, and above-mentioned power plant and cooling unit are placed in the strong hull.

Technique effect of the present invention is the recycle pump in the cooling system of the conduit system that can not need absorb water and submarine turbo-generator installation, therefore can not make and transfer on the hull construction from the noise signal of turbogenerator, can guarantee simultaneously the cooling of used water vapor, this is condensing by heat exchange and the volatile working solution in additional conventional closed cooling loop, add that the heat absorption of outboard water is accomplished, enter in the lightweight hull that easily penetrates to the gravity flow of outboard water at that time.Therefore can in wide spectral range, reduce the noise of submarine (or other submerged delivery vehicles) on the whole.

Fig. 1 illustrates essence of the present invention, and the schematic diagram of the submarine power plant cooling system of finishing according to the present invention is shown on this figure.In strong hull 1, be furnished with the turbine 2 and the turbogenerator 3 that constitute power plant of ship, and cooling unit; Cooling unit comprises: the condenser 4 of water vapor together with pump 5, reaches the conduit 6 that water of condensation is pumped usefulness; The loop 7 of cooling work liquid, this loop pass the strong hull 1 of submarine, thereby guarantee the thermo-contact (heat exchange) between water vapor condenser 4 and the working solution condenser 8; Working solution condenser 8 is located in the strong hull 1 and the space 9 between transparent lightweight hull 10, and the outer water of ship side enters in the space 9 between the side of a ship by the hole on the lightweight hull 10.Turbogenerator 3 and water recovery device 4 are placed in the ejector exhaust pipe of turbine 2, thereby form vacuum cavity 11.

The cooling system of the turbine generation type power plant on the submarine is worked in the following manner.When 3 work of the turbogenerator in the vacuum cavity 11 of the exhaust branch pipe that is located at turbine 2, the steam of working is come in the water vapor condenser 4 and is contacted with the tube wall of the cooling circuit 7 that adds.Working solution in the loop can substitute with volatile material such as liquid gas (particularly ammonia).Working solution extract heat from the water vapor is taken hear rate on the steam that self forms water recovery at that time.Because along cooling circuit 7 circulations, working solution and steam thereof can enter in the working solution condenser 8 and be washed away by the outer water of ship side.When working solution condensed, its gas phase was transformed into liquid phase, discharged a considerable amount of heat and was absorbed by the outer water of ship side, and working solution continues along additional cooling circuit circulation, once again with water vapor condenser 4 in the water vapor thermo-contact.The water of condensation of water vapor is pumped by pump 5 in pumping conduit 6.

The sound vibration that turbogenerator 3 in vacuum cavity 11 is produced when working can not be sent to the atmosphere of partition, can not excite hull yet, therefore can reduce sound vibration and be sent to the water vapor condenser, and heat exchanging process is not followed the mass transfer of material and significantly the flowing of liquid in conduit.

Like this, owing to introduce the cooling circuit of additional use working solution and between water vapor, working solution and outboard water, guarantee to have thermodynamic contact (heat exchange), therefore such recycle circuit can not need be arranged, promptly introduce outboard water with power plant coolings and conduit that outboard water is drawn, and the recycle pump of outboard water also can not need under such working form when the power plant of selecting for use are little be set.

The noise emission characteristic that can improve whole naval vessels for this reason is (according to assessment, the noise emission level can be reduced to tens of decibels), because got rid of airborne noise the exciting of turbogenerator on the one hand to strong hull, and exciting the lightweight hull, because the suction structure is to make the outboard water circulation under the little noise standard that can not feel out actually, noise is obviously caused much smaller than exciting the lightweight hull repeatedly.In addition, owing to management and the control simplified power plant work, improved the operating characteristic of submarine on the whole significantly.

Claims (2)

1. naval vessels that comprise submarine and boats and ships that reduced noise level, have the power plant that are located at the turbine generation type in the hull, comprise turbine and turbogenerator, and cooling unit, the conduit that comprises water vapor condenser and pumping water of condensation, it is characterized in that: the lightweight hull that has two kinds of hulls and be strong hull and easily penetrate, be provided with the additional conventional closed cooling loop of employing working solution and the condenser of working solution, said power plant and cooling unit are located in this strong hull, the condenser of working solution is located in the space between this strong hull and the transparent lightweight hull, and become heat power to get in touch with the water vapor condenser by said conventional closed cooling loop, wherein turbogenerator and water vapor condenser are located in the exhaust branch pipe of power plant turbine.

2. the naval vessels of claim 1 and boats and ships is characterized in that, select for use volatile liquid as working solution.