CN205661641U - LNG new forms of energy dislocation generation ship - Google Patents

Abstract

The utility model relates to an engineering boat on water specifically is a LNG new forms of energy dislocation generation ship. Set up liquefied natural gas engine in the hull, the liquefied natural gas jar passes through the gas air inlet that gas constant pressure valve connects the liquefied natural gas engine, set up heat exchanger -condenser on the pipeline between liquefied natural gas engine and the liquefied natural gas jar, liquefied natural gas engine's power take off end is through clutch generating set equipment, the outside of generating set equipment sets up power line induced -current closed circuit's induced -current coil, the induced -current coil forms closed circuit with the resistance that generates heat, generate heat on the pipeline of resistance setting between liquefied natural gas engine and liquefied natural gas jar, generating set equipment passes through power cable output interface and construction ship electric power input port connection. This patent noise is low, no exhaust gas particulates discharges, adaptability is wide.

Description

LNG new forms of energy dislocation generation ship

Technical field

This patent relates to water project ship, is specially a kind of LNG new forms of energy dislocation generation ship.

Background technology

Large-scale river course sand dredger machine, construction river use diesel mechanized operation at present.Its structure is that bavin installed by single ship Oil powerplant module provides power.Diesel engine unit has a problem in that its compression ratio of diesel group is high, and diesel engine is than equal gasoline Machine is heavier, and fuel injection device is expensive；Maintenance cost high (injection pump and fuel injector requirement on machining accuracy are high)；Rotating speed Low, accelerate relatively slow (weight and the reason of compression ratio)；Diesel engine can produce more smog and " strange taste "；Deleterious particle thing discharges Greatly；When it is cold, diesel engine can be difficult to start (as containing glow plug, after will waiting its heating, could start)；The noise of diesel engine Shake the most greatly and easily；The ease of use of diesel is poor.Current diesel oil dredger technology, will produce the biggest environment dirty The ship's staff that works in dye, construction also endures the torment of noise vibration to the fullest extent, and equipment failure rate is the highest.Each ship has independent bavin Oil machine group, once works together, and whole river surface noise is very big, and air pollution is serious, and the environment of staff is very severe, multiple bavins The maintenance cost of oil powerplant module is the highest, needs the maintenance cost of high cost every ship will be carried out fuel benefit Give.In practice of construction, generally require the operation simultaneously of a plurality of ship, to realize construction target.Current technology is accomplished by a plurality of independence The situation that powerplant module goes into operation simultaneously, causes that construction cost is the highest, environmental pollution pressure is big.And in existing technology, electric power machine Its noise ratio diesel engine unit of construction of group is much lower, and the equipment failure rate of electric power unit is the lowest, but has a problem in that river surface workboat Position only or else disconnected variation, leading cable from riverbank is unpractical.

Summary of the invention

This patent purpose is for above technical problem, it is provided that a kind of LNG new forms of energy dislocation generation ship, makes waterborne to dig sand Engineering cost reduces, equipment fault is few, environmental contaminants are greatly reduced, improve workmen's working environment, makes full use of The heat energy of LNG electromotor, promotes workmen's environment of workboat, and reduces energy consumption.

The concrete technical scheme of this patent is as follows:

LNG new forms of energy dislocation generation ship, is started by hull, generator set device, liquified natural gas tank, liquefied natural gas Machine, change speed gear box, crewman control bin, compressor, heat exchange condenser, cold-producing medium capillary tube, vaporizer, fin, electric lines of force Faradic current Guan Bi circuit heating element composition, arranges liquefied natural gas electromotor in hull, liquified natural gas tank passes through metastable gas Pressure valve connects the gas inlet of liquefied natural gas electromotor, the pipeline between liquefied natural gas electromotor and liquified natural gas tank On heat exchange condenser is set, heat exchange condenser is connected to cold-producing medium capillary tube by pipeline, and cold-producing medium capillary tube is connected to Being arranged on crewman and control the vaporizer of bin, the refrigerant outlet of vaporizer separately connects refrigeration compressor, and refrigeration compressor passes through Transmission clutch is connected with the clutch end of liquefied natural gas electromotor, and the clutch end of liquefied natural gas electromotor passes through Clutch connects generator set device, generator set device outside the faradism of power induction circuit closed circuit is set Streamline circle, faradic current coil is formed with heating resistor and closes circuit, and heating resistor is arranged on liquefied natural gas electromotor and liquid Changing on the pipeline between natural gas tank, generator set device is by power cable output interface with workboat electric power input port even Connect.

The kinetic energy of combustion of natural gas is converted into electric energy by generating set and is supplied to construction by LNG liquefied natural gas electromotor Ship, the power packages of workboat is motor unit, and such structure makes the significantly noise of construction environment, and reduces air pollution, Specific construction ship the generating of many ships and this patent can pass combination construction, and i.e. one generating passes many workboats of docking.This patent Advantage to be embodied in the thermal efficiency high, environmental friendliness, equipment failure rate are low.Environmental friendliness, liquefied natural gas dredger is to clean energy Source LNG is power, LNG sulfur-bearing hardly, dust and other harmful substances, and the discharge quantity of particulate matter after burning is than diesel engine few 50 ~ 70%, LNG electromotor works 8 hours and discharges than the CO2 of the diesel loader minimizing 150Kg of a same specification, so, make Good social benefit, horizontal stroke and ten thousand can be brought to us with LNG as power fuel, pass through eternal lasting.Promote economic worth, with LNG digs husky power combination, equal workload as fuel, can save fuel cost about 30%, and economic benefit is the most aobvious Write.Extend machine life, due to LNG burning completely, without coking, without pinking, can effectively alleviate parts depreciation, prolongation electromotor longevity Life, makes the resource consumption of the means of production be reduced to bottom line, give play to maximum value.LNG fuel from air accumulator out time Needing to absorb heat, outlet conduit frosting may be caused under conditions of the past to freeze, gas pressure is not enough.And this low-temperature receiver exists Being available with in this patent, heat exchange condenser can transfer heat to outlet pipe and avoid freezing plateau air pressure.Compression Machine, the refrigeration of vaporizer can provide cold air to the operating room of workmen in hull, improve workmen's working environment.Engineering The ship Yangtze river basin at home works, and this area is the stove area of China, and summer temperature, humidity are very big, and workmen is former Under the conditions of some equipment and technologies, high temperature to be stood, noise, the torment of vibrations, this patent can solve problem above, it is often more important that The problem improving construction ship environmental pollution.LNG vaporization latent heat is high, the cold recoverable in liquefaction process.Due to LNG After vaporization, density is the lowest, only about the half of air, slightly leaks and spreads immediately, reduces the probability that set off an explosion.By Purer in LNG composition, burning completely, generates carbon dioxide and water after burning, so it is well to clean fuel, is conducive to protecting Retaining ring border, reduces environmental pollution.Through deep cooling process, the sulfur composition in natural gas separates out in solid form, separates, and fires than other Material more cleans, and during burning, greenhouse gas emissions are lower, is the energy of a kind of " green ".The feature of environmental protection.The main component of LNG is first Alkane, the emission after burning is compared with gasoline and diesel oil, and the concentration of CO, CO2 and NOx is all decreased obviously, PM2.5 and motor vehicles Exhaust emissions is closely related, and using LNG is the automobile of fuel, and in its tail gas, the PM2.5 particulate matter of every km discharge is only 0.005 Gram, ratio vapour, diesel oil reduce more than 93%, are most effective, the approach the most easily alleviating and reducing PM2.5 particulate matter present stage, and Carbon emission, comprehensive pollution thing discharge 80% can be reduced simultaneously；Safety.LNG burning-point is 650 DEG C, higher than the burning-point of vapour, diesel oil；Quick-fried The fried limit is 5%-15%, the LNG steam lta of more than-106.7 DEG C, slightly reveals, and volatilization the most immediately is dispersed, very The difficult concentration forming chance fire combustion explosion, security performance is high；Economy.The price of LNG is lower than gasoline and diesel oil, can significantly drop Low cost of transportation, and burning is fully, does not produce carbon distribution, can effectively alleviate parts depreciation, also can extend and start when using natural gas In the machine life-span, reducing the maintenance cost more than 50% of electromotor, overall economic efficiency is notable.Promote economic worth, using LNG as combustion That expects digs husky power combination, equal workload, can save fuel cost about 30%, and economic benefit is the most notable.Extend whole The machine life-span, due to LNG burning completely, without coking, without pinking, can effectively alleviate parts depreciation, prolongation engine life, make production The resource consumption of data is reduced to bottom line, has given play to maximum value.Another defect of Diesel engine is to make an uproar at present Sound, vibrations.Diesel engine noise is divided three classes: air power noise, combustion noise and mechanical noise.Diesel engine air pertormance Noise mainly includes the air in inlet and outlet noise (mainly exhaust noise), turbocharger and waste gas microseismic noise.Aerofluxus The raw mechanism of noise is: when diesel engine spiracle open gap occurs time, waste gas is gone out from gap with impulse form, forms energy very High, the noise of spectrum complex.It mainly comprises and includes: the noise that the periodic pressure produced because of exhaust valve open and close is excited; Eddy current crack produced by the eddy current formed when high velocity air is by exhaust valve and discharge duct;In exhaust main, waste gas enters whirlpool Wheel supercharger is mixed to form, with wherein air, the eddy current crack that eddy current produces.Exhaust noise increases with atmospheric pressure and the increase of rotating speed Greatly.Use turbo charge system that exhaust noise can be made to decrease, the low-frequency noise that exhaust gas pulse of particularly decaying produces, main If because constant pressure charging system exhaust main is bigger, the effect of muffler can be played to a certain extent.This is also existing Two stroke diesel engine use constant pressure charging system, and need not one of the former major reason of impulse pressure charging system.Burning The judder that when noise is fuel combustion, in-cylinder pressure drastically changes the dynamic loading of generation and shock wave causes, through cylinder head, Cylinder jacket, piston, connecting rod, crankshaft main bearing propagate from the noise formed.The characteristic of combustion noise can be with cylinder pressure Spectrum curve represents, the internal combustion engine of various combustion systems is produced in-cylinder pressure stave bright, and maximum pressure determines cylinder pressure spectrum Low-frequency component.Combustion Noise of Diesel Engine is the medium, high frequency composition of more than 500kHz centered by 1kHz～2kHz.Machine Tool noise is the noise of vibrational excitation produced by mechanical impact between parts and components of diesel engine.The main component of mechanical noise is alive The moving parts such as plug beat noise, timing gear noise and toggle clash into the noise that cylinder sleeve, bearing and cylinder body produce Deng.The noise that wherein piston knock cylinder wall produces mainly is caused by combustion process, occurs near upper and lower stop, with compression Near top dead center is the most serious.Tap intensity relevant with cylinder gap with maximum combustion pressure in cylinder and piston.Timing gears Noise is because gear when bearing alternate load, and in engaged transmission, between cog occurs to clash into and friction, and add that gear exists is various Error, makes axle deform, bearing load increases the weight of, bent axle and camshaft torsional oscillation etc., thus excites noise.Along with diesel engine speed Increase, grating of gears is the most increasing.The main noise source of diesel engine is different, the noise radiation type that environment is produced also each the most not Identical, mainly have: exhaust noise (such as air pulsing), spatial noise (such as aircraft cabin noise) and construct noise encourage (such as diesel engine Footing vibrates).Using diesel engine, no matter diesel-engine equipment is the exquisitest, its noise all cannot effectively solve.LNG electromotor is thorough The end, solves noise problem, and LNG electromotor is lower than gasoline engine noise vibration, through Experimental Comparison, uses this patent equipment significantly Degree improves workmen's working environment, thus avoids the noise injury to personnel.Workboat utilizes the electric power of generating ship to carry out Construction, the electrical equipment of workboat is more much smaller than engine noises such as diesel combination, petrol power combinations, almost can neglect Slightly disregard.Workboat is also no longer necessary to fuel oil supply, and equipment failure rate is also greatly lowered.All of fuel make up is all for generating Ship.Generating ship is LNG fuel, and its efficiency of combustion is higher, and noise is low, pollution is few, and construction integrated mode is various, and transformation adaptability is more By force.

Accompanying drawing explanation

Fig. 1 is this patent structural representation.

Wherein, 1 hull, 2 liquified natural gas tanks, 3 liquefied natural gas electromotors, 4 change speed gear boxes, 5 crewman control bin, 6 compressors, 7 heat exchange condensers, 8 cold-producing medium capillary tubies, 9 evaporations Device, 10 fin, 12 generator set devices, 14 heating resistors, 15 power cable output interfaces.

Detailed description of the invention

Below in conjunction with detailed description of the invention, this patent is described further.

LNG new forms of energy dislocation generation ship, is started by hull, generator set device, liquified natural gas tank, liquefied natural gas Machine, change speed gear box, crewman control bin, compressor, heat exchange condenser, cold-producing medium capillary tube, vaporizer, fin, electric lines of force Faradic current Guan Bi circuit heating element composition, arranges liquefied natural gas electromotor in hull, liquified natural gas tank passes through metastable gas Pressure valve connects the gas inlet of liquefied natural gas electromotor, the pipeline between liquefied natural gas electromotor and liquified natural gas tank On heat exchange condenser is set, heat exchange condenser is connected to cold-producing medium capillary tube by pipeline, and cold-producing medium capillary tube is connected to Being arranged on crewman and control the vaporizer of bin, the refrigerant outlet of vaporizer separately connects refrigeration compressor, and refrigeration compressor passes through Transmission clutch is connected with the clutch end of liquefied natural gas electromotor, and the clutch end of liquefied natural gas electromotor passes through Clutch connects generator set device, generator set device outside the faradism of power induction circuit closed circuit is set Streamline circle, faradic current coil is formed with heating resistor and closes circuit, and heating resistor is arranged on liquefied natural gas electromotor and liquid Changing on the pipeline between natural gas tank, generator set device is by power cable output interface with workboat electric power input port even Connect.The kinetic energy of combustion of natural gas is converted into electric energy by generating set and is supplied to workboat by LNG liquefied natural gas electromotor, executes The power packages of work ship is motor unit, and such structure makes the significantly noise of construction environment, and reduces air pollution, specifically executes Work ship the generating of many ships and this patent can pass combination construction, and i.e. one generating passes many workboats of docking.LNG wants when gasification Heat absorption, can cause the problem that pipeline frosting freezes, and the setting of coolant compressor, power induction circuit closed circuit are to utilize The air-conditioning heat dissipation of workmen and electromotor faradic current provide heat to avoid the frosting of LNG gasification.Faradic current is converted into heat The low temperature avoiding LNG to export can be also used for.Facts have proved that the technical scheme of this patent effectively solves LNG fitting on hull The construction answering sex chromosome mosaicism, this patent to be suitable for multiple needs on cruiseway is supported.This patent provides moving electric power for workboat Supply, power is big, pollutes little, and noise is little, and whole construction has only to carry out LNG carrier fuel make up, a complete set of system phase For diesel oil machine workboat, low cost of manufacture, failure rate is low, maintenance cost are low, it is little to pollute, noise is little, is particularly suitable for inland river Constructing in navigation channel, the scope of application is wide.

Claims (1)

1.LNG new forms of energy dislocation generation ship, by hull, generator set device, liquified natural gas tank, liquefied natural gas electromotor, Change speed gear box, crewman control bin, compressor, heat exchange condenser, cold-producing medium capillary tube, vaporizer, fin, power induction Circuit closed circuit heating element forms, and arranges liquefied natural gas electromotor in hull, and liquified natural gas tank passes through gas stabilized-pressure valve Connect the gas inlet of liquefied natural gas electromotor, the pipeline between liquefied natural gas electromotor and liquified natural gas tank sets Putting heat exchange condenser, heat exchange condenser is connected to cold-producing medium capillary tube by pipeline, and cold-producing medium capillary tube is connected to arrange Control the vaporizer of bin crewman, the refrigerant outlet of vaporizer separately connects refrigeration compressor, and refrigeration compressor passes through transmission Clutch is connected with the clutch end of liquefied natural gas electromotor, and the clutch end of liquefied natural gas electromotor passes through clutch Device connects generator set device, and the outside of generator set device arranges the faradism streamline of power induction circuit closed circuit Circle, faradic current coil is formed with heating resistor and closes circuit, and heating resistor is arranged on liquefied natural gas electromotor and liquefaction sky So on the pipeline between gas tank, generator set device is connected with workboat electric power input port by power cable output interface.