System for processing stripping gas

FIELD: machine engineering.

SUBSTANCE: stripping gas processing system includes a compressor 100 compressing the stripping gas which is generated in tank T for storing liquefied natural gas of a ship or floating structure, a heat exchanger 200 that cools the stripping gas compressed by the compressor 100 by means of heat exchange with stripping gas supplied to the compressor 100, an expansion device 300 which performs adiabatic expansion of the stripping gas, a gas-liquid separator 400 which performs gas/liquid separation of the stripping gas and supplying liquefied natural gas to the tank T. The system also includes a bypass line, through which stripping gas subjected to adiabatic expansion is fed from downstream position from the device 300 to downstream position from the separator 400.

EFFECT: providing efficient processing of the stripping gas.

9 cl, 7 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: liquefied gas supply system includes tank (T) 2 with liquefied gas fuel, fuel pump 3 with supply pipeline (SP) 4 and injectors (I) hydraulically connected to it. Injectors are combined into two groups 5-8 and 9 and connected to electronic control unit 10. Each I group is provided with a drain pipeline connected to the tank. SP of each I group is provided with a controlled valve having a possibility of SP shutting-off. The system includes gaseous fuel temperature 16 and pressure 17 sensors and an ice formation control sensor. In each I group, at least one of the injectors is provided with a temperature sensor. The tank is provided with a heating element.

EFFECT: improving operating reliability of a liquefied gas supply system.

7 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: nozzle comprises casing (1), hollow sprayer (4) with conical seat (5) and channels (2, 3) for feed of the main and pilot fuels. Sprayer (4) accommodates spring-loaded needle (11) with conical locking surface made at its lower part to make with said sprayer (4) the under-needle chamber and mixing chamber. Sprayer (4) inner chamber has distribution chamber (18) communicated with fuel feed channels (3, 9) and with mixing chamber via circular channel (19). Needle (11) body has axial channel (20) communicated with radial channels (21) and fuel feed channels (7) and (8) via circular chamber (22). Note her that the main fuel is fed to chamber (22) and channel (20) while pilot fuel is fed to chamber (18) and channel (19). Nozzle mid part has the area (26) for additional adjustment of pilot fuel flow rate composed of stepped section of circular channel (19). Said channel is composed of combined ledge and mating circular groove with application of cylindrical surfaces of sprayer (4) and needle (11).

EFFECT: correction of mix composition, better fuel mix spraying.

3 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: gas supply system, namely for supply of methane or hydrogen, to internal combustion engine includes multiple injectors with electromagnetic control, which are connected to various engine cylinders, distributing manifold or gas ramp, which are connected to injectors; gas supply tank to distributing manifold, in which compressed gas is accumulated, and pressure reducing valve. Electromagnetic control valve includes inlet hole connected to fuel tank, outlet hole connected to auxiliary inlet hole of pressure-reducing valve, as well as to distributing manifold; movable armature control solenoid that controls the connection between inlet holes and outlet hole of electromagnetic control valve to provide the specified gas pressure reduction in the channel from inlet hole to outlet hole of electromagnetic control valve. In addition, gas supply system includes electronic solenoid control device of electromagnetic control valve. Pressure reducing valve and electromagnetic control valve are combined in housing of common electronic pressure control. In the housing there is inlet hole for gas supplied from fuel tank; outlet hole for gas that is supplied to distributing manifold or gas ramp; connecting channel between inlet hole and pressure reducing valve; connecting channel between inlet hole and electromagnetic control valve; connecting channel between electromagnetic control valve and pressure reducing valve; connecting channel between electromagnetic control valve and outlet hole, and connecting channel between pressure reducing valve and outlet hole. In addition, the device includes electronic solenoid control module of electromagnetic control valve. Electronic pressure control for gas supply system, namely for supply of methane or hydrogen, to internal combustion engine has housing. In housing there combined is pressure reducing valve of gas supplied from fuel tank to the value required for gas supply to distributing manifold or gas ramp, and electromagnetic control valve having the possibility of generating pressure control signal on which pressure reduction degree depends, which is performed by means of pressure reducing valve, as well as connecting channels between the above valves and between each of the above valves and inlet hole and outlet hole of the device. In addition, the device includes electronic control module for control of electromagnetic control valve.

EFFECT: invention allows improving the proposed system, namely owing to simplifying and improving its components.

30 cl, 15 dwg

FIELD: machine building.

SUBSTANCE: fuel consists of gaseous mixture of two combustible gases, one of which has cetane number not over 30, while another has cetane number over 100. Also, their quantitative content in mixture depends on modes of engine operation.

EFFECT: operation of engine with two, one separate from another, kinds of fuel - liquid and gaseous; additional advantage of gaseous fuel is its ecological compatibility.

FIELD: engines and pumps.

SUBSTANCE: proposed system comprises cryogenic gas cylinder, pipeline to transfer liquefied natural gas into evaporator communicated with pipeline that carries gaseous gas from evaporator into transport facility engine, and multipurpose valves. Additionally, system comprises compressed natural gas cylinder communicated, via pipeline, gas pressure reducer with cryogenic gas cylinder and pipeline that feeds gaseous gas into transport facility engine.

EFFECT: perfected reliable design.

1 dwg

Gas injector // 2341677

FIELD: mechanics.

SUBSTANCE: proposed injector comprises casing with inlet and outlet channels. Aforesaid casing accommodates solenoid, movable armature rigidly linked up with shut-off member and valve seat. There is a gap between the armature and solenoid core exceeding the shut-off member travel. Aforesaid solenoid represents an armored electromagnetic valve incorporating a special cylindrical pole. Between solenoid core and armature provided is a non-ferromagnetic flexible plate representing a ring with radial cuts arranged on the ring inner side to make teeth bent towards the said armature. Perforated diaphragm is arranged between aforesaid armature and shut-off member and linked up with them. Diaphragm radial rigidity exceeds it axial rigidity. Diaphragm angular rigidity around its lengthwise axis exceeds that around radial axes.

EFFECT: higher wear resistance, faster operation, stable operating properties.

3 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine carburettor with a petrol heater incorporates an ellipse-shaped air branch pipe arranged in the upper, medium and lower parts coupled by pressure seal gaskets. The said air branch pipe incorporates also a prechamber air branch pipe with air channels, balancing channels, a float chamber cover made integral with the aforesaid ellipse-shaped air branch pipe and having a press-fitted fuel line union, a float and float mechanism valve. The aforesaid carburettor incorporates also a rotary air valve with a membrane and manual control mechanisms, a part of the econostat, the econostat fuel jet, a float chamber, primary and secondary chambers, each with small and greater diffusers, an idling system, primary and secondary chambers main metering systems, an econostat emulsion channel with a jet extended to the secondary chamber, a flange-connected diaphragm accelerating pump, throttles with control mechanisms arranged in mixing chambers. A petrol-gas channel is arranged in the medium and upper parts extended to the primary chamber part, for example, to the small diffuser central channel, from the float chamber above-petrol space isolated from the econostat air part.

EFFECT: lower petrol consumption.

2 cl, 3 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention relates to engines operating on compressed or liquefied gas. Proposed system provides comfortable conditions inside car in any season owing to heating of car interior in winter and decreasing temperature in summer. Proposed gas supply system of vehicle engine includes gas supply circuit with regulator-evaporator and cooling liquid circulation circuit with climatic device. Cooling liquid circulation circuit includes additional pump and additional regulator-evaporator connected with gas supply circuit and main regulator-evaporator.

EFFECT: provision of comfortable conditions in car interior.

2 cl, 2 dwg

The invention relates to engine, in particular to the field of supply of the gas of internal combustion engines and other gas of low pressure gas from the high pressure

The invention relates to the field of engine development and is intended for use in internal combustion engines running on gasoline

FIELD: engines and pumps.

SUBSTANCE: injector includes a housing, inside which a coil, a core, an armature and a seat made in the form of an exhaust branch pipe are arranged. In the housing there is a gas supply groove. A non-magnetic mechanically strong coating is applied by means of a plasma sputtering method onto the end surface of the armature, which faces to the core.

EFFECT: improving reliability of a device and manufacturability of parts and final assembly of a finished injector.

6 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention proposes a device for feeding gaseous fuel to an engine, which includes gaseous fuel supply tube 1 to inlet valve 3 of engine cylinder. Tube 1 is arranged in inlet channel 4 of head of cylinders 5 of the engine. Tube 1 is equipped with fastener 7 located in channel 4.

EFFECT: improving efficiency of an engine operating on gaseous fuel by shaping a stable combustible gas flow to the engine cylinder.

8 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: invention proposes a device for supply of gaseous fuel to an engine, which includes tube 1 for supply of gaseous fuel to inlet valve 3 of engine cylinder, which is located in inlet channel 4 of cylinder head. The device is provided with air flow swirler 7 consisting of skewed blades 8 connected to tube 1.

EFFECT: increasing engine capacity and improving economic performance of its operation on gaseous fuel by improving mixing of combustible gas and air.

3 cl, 3 dwg

FIELD: transport.

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

FIELD: engines and pumps.

SUBSTANCE: inlet pipeline 2 is connected to combustible gas bottle 5. Waste gases are supplied via outlet pipeline 8 through the second tank 13 to water of the first tank 9. Water of tank 9, which is cooled by cooler 10 to 2-10 degrees, dilutes carbon dioxide. Water with carbon dioxide diluted in it is transferred by pump 12 from the first tank 9 via the pipeline to the second tank 13. In tank 13, carbon dioxide is discharged to atmosphere through branch pipe 14. Oxygen, nitrogen and combustible gas leave the water in tank 9 and are transferred with air pump 17 via the first additional pipeline 16 to water of the third tank 18. Nitrogen at the pressure of 10 atm is diluted in water of the third tank 18. Oxygen and combustible gas leave water of the third tank 18 and are supplied via additional outlet pipeline 21 to inlet pipeline 2. Water and nitrogen diluted in it are discharged through additional branch pipe 22 to the fourth tank 24. In tank 24, nitrogen is removed from water and vented to atmosphere through branch pipe 29.

EFFECT: feed system of an engine of a power unit will allow generating electric energy at lower costs, thus ensuring safety of an operating personnel.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in fuel systems with injection of LOG for mechanical carriers. Pump arranged inside LOG tank comprises flange (1) with opening for pump dismantling, container (7) to house said pump, sealed and integrated with flange (1). Opening on fuel tank inner side, at the base of container (7), has union (17) to secured LOG inlet pipe. It comprises LOG pump proper, cover for tight closure of container (7) with said pump, fastener to secure said cover to flange outer wall in opening (6), fuel suction pipe (9) to transfer LOG from tank (18) and inlet fuel pipe (8) to transfer LOG from suction pipe (9) to container (7). Device (10) to activate and deactivate LOG flow feed from fuel suction pipe (9) via fuel inlet pipe (8) to container (7) with pump that can be operated from tank outer side. Pipe feeding fuel to the engine extends through the pump sealed cover. Container (7), cover and pipe section (8) are arranged behind the device (10) to activate and deactivate LOG flow feed and allow draining the residual LOG after closure of said device (10). It incorporates electronic feed valve, feed pipe to feed fuel to LOG tank (18) and return pipe to feed LOG in tank (18).

EFFECT: dismantling without draining of fuel.

7 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines. Gas-piston electrical generator consists of engine 11 with low gas concentration lower than 30%, electrical generator 12, fine water dust feed system 1, water evaporator cooler 2, electric fly gate 3, pressure control valve 4, mixer 5, temperature controller 6, heat load transducer switch 7, gas engine combustion chamber 8, air filter 9 and speed control valve 10. Said fine water dust feed system 1 is connected with water evaporator cooler 2 via electric fly gate 3 and engine 11. Said pressure control valve 4, mixer 5, temperature controller 6, heat load transducer switch 7, gas engine combustion chamber 8, air filter are connected with engine 11. Temperature controller 6 is electrically connected with mixer 5 and heat load transducer switch 7. Electrical generator 12 is connected with engine 11.

EFFECT: complete application of coal gas, decreased emission of greenhouse gases.

8 cl, 9 dwg

FIELD: engines and pumps.

SUBSTANCE: control system can be used for control over gas engine incorporated with motor generator and co-generators for application of gas or mix of gases of various calorific capacity. Proposed system comprises electronic control unit and thermocouple connected therewith and arranged in exhaust manifold, crankshaft rpm, detonation and air flow rate transducers, camshaft angular position transducers and gas pressure and temperature transducers. Additionally, this system comprises bypass solenoid valve arranged at two-stage low-pressure reducer first stage connected on one side via said bypass solenoid valve with said first stage and, on the other side, via three-way control valve with gas main line. Relative calorific capacity of gas is defined by off-gas temperature and working gas pressure corrected to use the increased gas pressure from first stage for operation of gas engine at increased gas feed.

EFFECT: higher control efficiency.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to pump for transfer of, for example, cryogenic hydrogen from vessel into tank kept at higher pressure. It includes the cylinder accommodating reciprocating piston. Note here that the volume of cylinder low-temperature chamber decreases when said piston reciprocates in the first direction. Hence, the volume of high-temperature cylinder chamber, opposite the first one, increases. Besides, said pump comprises fluid inlet channel terminating at low-temperature chamber and communicated with tank, fluid discharge chamber running from high-temperature cylinder chamber communicated with vessel, and fluid connection pipeline communicating said both chambers. Note here that at least one heater is arranged to heat fluid flowing during said first reciprocation from low-temperature chamber to high-temperature chamber to up the pressure in the latter exceeding that in the vessel.

EFFECT: increased MTBR.

1 dwg, 12 cl

FIELD: engines and pumps.

SUBSTANCE: proposed control system comprises ignition system with N-channel distributor wherein N is the number of cylinders, liquid fuel feed system (LFFS) and gas fuel feed system (GFFS). Fuel changeover is performed by fuel changeover switch. LFFS is composed of carb feed system with first idling economiser and electronic control. GFFS comprises gas cylinder with feed control valve, differential gas control valve and N-fast-action solenoid valves. Control is performed by integral microprocessor control unit. Said control system comprises has temperature gage, absolute pressure gage, waste gas composition transducer, coolant temperature transducer and spark formation moment gage. Control system forms optimum composition of fuel-air mix and advance angle at all ICE operating conditions at using both liquid and gas fuels.

EFFECT: higher operating efficiency.

2 dwg

FIELD: transport.

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

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