Cooling system ship power plants
(57) Abstract:Use in power installations for vessels operating in conditions of high contamination and in ice conditions. The inventive cooling system, including the main condenser connected to the steam line and the pipeline removing condensate receiving and casting piping sea water directly overboard drawer, circulating pump and slide valves, equipped with an additional circuit heat to the sea water, made in the form attached to the steam pipe and pipeline condensate removal auxiliary condenser with built-in heat absorbing unit combined with teploperenosa part of at least one heat pipe, the heat of which is displayed in wages and combined with inside heat block. Heat-absorbing and heat-release blocks are made from a material with thermoelastic martensitic transformations. 1 Il. The invention relates to shipbuilding and can be used to create the cooling systems of power plants vessels operating in conditions of high contamination of seawater various inclusions, for example, the garbage, the, for example, nuclear or diesel-electric icebreakers.Known cooling system shipboard power plants typically include heat exchangers, such as condensers, cooled by sea water, pumped through the receiver and casting pipes of the circulation route through the circulation pumps (Alyamovskii M. I. field A. A. Ship condensing installation. L. Sudpromgiz, 1962, ch. VII).In the presence of sea water in various inclusions they can passivates in the cooling system, breaking or making impossible its normal operation.This disadvantage is overcome by the device on the ship special Kingston or ice boxes with holes, closed on the outside by a protective grilles prevent leakage of the circulating track of large inclusions (Epelman I.e. Ipatinga A. J. of Ship power installations and their equipment. L. Shipbuilding. 1974, S. 235-242).This cooling system energy, for example, a steam turbine, which is the closest analog, includes a main condenser connected to the steam line and the pipeline condensate removal, receiving and otown INCITY.The admission of sea water is carried out in such a system through the Kingston or ice box, equipped with devices for heating and blowing of the receiving grating or strainer. However, the higher requirements for water treatment, the smaller the cell must have a reception lattice or grid, and the faster it gets blocked or clogged. This disadvantage is characteristic of practically all known cooling systems with pumping or samopodoben sea water through the condenser.The technical goal of providing cooling shipboard power plants regardless of the degree of contamination of sea water of different inclusions.The task is solved in that the cooling system is equipped with an additional circuit heat to the sea water, made in the form attached to the steam pipe and pipeline condensate removal auxiliary condenser with built-in heat-absorbing unit, for example, made of a material with thermoelastic martensitic transformations, combined with teploperenosa part, at least one heat pipe, the heat of which is displayed in saltwater, for example, the Kingston drawer and combined with razmeshanny.The drawing shows a cooling system of marine power installation, for example, cooling a steam turbine. The system contains a main capacitor 1, which is connected with the steam pipe 2 and pipe condensate removal 3, receiving 4 and casting 5 piping seawater reared in saltwater, for example, Kingston 6 drawer, circulating pump 7 and the slide valves 8. The system is equipped with an additional circuit heat to the sea water, made in the form attached to the steam pipe and pipeline condensate removal auxiliary capacitor 9 with built-in Telepopmusik unit 10, for example made of a material with thermoelastic martensitic transformations, combined with teploperenosa part of at least one heat pipe 11, the heat of which is displayed in the intake, for example, the Kingston drawer and combined with inside heat block 12, for example, made of a material with thermoelastic martensitic transformations.Blocks of material with thermoelastic martensitic transformations are characterized by a high heat capacity and speed of the processes of heat absorption and heat transfer.These blocks m the ranks of the housing, on the inner surface of which is a capillary-porous material wick soaked in the liquid phase of the coolant.As a coolant for a heat pipe can be used, for example, alkali metals, allowing to realize a very high density of heat flow. The specified heat transfer pipes can be several orders of magnitude greater than the heat transfer copper rod of the same cross-section.The inclusion of the cooling system is when you want to disable the contour of the outboard water main capacitor, for example, because of the high degree of pollution of water behind a vessel or sailing in difficult ice conditions. Auxiliary condenser 9 is connected by means of slide valves 8 to the steam pipe 2 and the pipe condensate removal 3.Thermal energy through the martensite block 10, which is a kind of thermal damper is transmitted to teploperenosu part of the heat pipe 11. This leads to evaporation in this section of the pipe of the liquid coolant, a pair of which are moving along the Central part of the pipe to the cooling station, where they are condensed. The liquid phase of the coolant through fitly returns to the evaporation zone, podds heat part of the heat pipe is passed in heat martensitic unit, washable sea water. Qualitative circulation of sea water in the sea valve box through the existing holes in the protective gratings or filters, occurring due to the difference in water temperature near the martensitic heat block and away from it, gravity is characterized by convective motion, and, therefore, eliminates the root cause rapid clogging of the holes.The increase in Kingston mailbox, it is necessary to accommodate the martensitic heat sink block and involvement in the process of heat transfer of large amounts of water, as a rule, does not present great difficulties for existing ships with double bottom. Heat the unit can also be placed in a specially designated part of the double bottom, with the outer holes.Parameters and characteristics of the cooling system, including the martensite blocks and heat pipes, can be determined based on the capacity of the power plant and operating costs.Auxiliary circuit biznesowego cooling to ordinary courts can be used primarily for the Parking at the port and on the small course near the coast, where pollution is greatest, so the surrounding ice conditions, you may need cooling system, including a larger martensite blocks and more heat pipes.To some extent the increase of the size and complexity of the cooling system is compensated by the saving power when you turn off circulating pumps sea water. Can be also reduced vibration and noise on the ship, caused by disabling vibroshumes sources, as the circulation pump and a circulation route. The proposed system can be used and, if necessary, to repair the circulation route with a running power plant.The main advantage of the proposed cooling system providing cooling power plants of any type, allows to use it in various courts from the very small, operating in shallow waters with a high degree of contamination of the surrounding water, to the largest, including nuclear-powered icebreakers, floating in heavy ice conditions. The cooling system of marine power installation, for example, cooling system steam turbine, comprising a main condenser connected to the steam line and the pipeline condensate removal is operating the pump and slide valves, characterized in that it is provided with an additional circuit heat to the sea water, made in the form attached to the steam pipe and pipeline condensate removal auxiliary condenser with built-in heat-absorbing unit, for example, made of a material with thermoelastic martensitic transformations, combined with teploperenosa part of at least one heat pipe, the heat of which is displayed in saltwater, for example, the Kingston drawer and combined with inside heat block, for example, made of a material with thermoelastic martensitic transformations.
SUBSTANCE: invention relates to device for feeding fuel in power plant of a ship carrying liquefied gas from ship liquefied gas tank. Ship comprises at least one liquefied gas tank 2 and onboard power plant, and device to feed fuel into said power plant. Proposed device comprises pump 20, vessel 23, injector 12 and fluid line. Said pump is mounted on vessel bottom. Container is arranged in vessel around the pump to support immersed pump. Aforesaid fluid ejector is arranged inside said vessel to suck off liquefied gas from its bottom. Fluid line (21, 22, 24, 250) communicates pump outlet with injector inlet on one side and, on the other side, it communicates injector outlet with vessel.
EFFECT: reduced risks of pump outage or damage.
10 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: heat exchange complex of a steam turbine plant comprises a system of main condenser cooling, which comprises the following components serially connected with a cooling pipeline: an ice box, a circulating pump, the main condenser and a drain box, and also a condensate system comprising the main condenser, a condensate pump, a low-pressure feedwater heater and a deaerator, serially connected with a condensate pipeline, besides, the main condenser cooling system is arranged as closed and is equipped with an off-board heat exchanger installed in the ice box. Also the main condenser cooling system comprises a closed circuit of secondary coolant, which is equipped with a low-pressure feedwater heater of the condensate system.
EFFECT: invention makes it possible to increase energy efficiency of a vessel.
4 cl, 1 dwg
SUBSTANCE: invention relates to feed of fuel gas to power plants of tankers that carry compressed natural gas and use it as the main power carrier. This process consists in continuous use of, first of all, gas generated in cargo gas tanks as the main power carrier for tanker engines. Excess gas is compressed by compressor at low motion speeds and at stops. Said compressed gas is accumulated in high-pressure vessels (200 bar and higher) and its application when gas consumption exceeds its generation in cargo tanks.
EFFECT: higher efficiency of operation of said tankers.
7 cl, 1 dwg
SUBSTANCE: invention relates to submarines and concerns a submarine fuel system. Disclosed is a fuel system of a submarine including external fuel tanks, which are made in form of, for example, solids of revolution and are equipped with pipelines with displacement valves, wherein external tanks are arranged outside hull of submarine and are interconnected by wing-like cowling consisting of two side sections, wherein cowling in middle part is shaped out of submarine and pipelines of external tanks are arranged inside wing-like cowling, wherein on-board sections of cowling are interconnected and connected to housing of submarine by quick-release connections.
EFFECT: invention ensures reduction of volume of system when arrangement on submarine.
1 cl, 1 dwg
FIELD: gas industry.
SUBSTANCE: invention relates to systems for liquefied gas processing and can be used on ships. Liquefied gas processing system for ship includes the main supply line of the boil-off gas (BOG) configured to be able to compress the BOG created in the cargo tank by the compressor and to feed it into the main engine as fuel. Auxiliary BOG supply line can compress the BOG created in the cargo tank by the compressor and feed the compressed BOG to the auxiliary engine as fuel. Main LNG supply line is configured to compress the LNG stored in the cargo tank by the pump and to supply the compressed LNG to the main engine as fuel. Auxiliary LNG supply line is configured to compress the LNG stored in the cargo tank by the pump and to supply the compressed LNG to the auxiliary engine as fuel.
EFFECT: possibility of efficient use of liquefied gas is achieved.
13 cl, 13 dwg