CN203162531U - High-pressure gas supply system of marine power plant - Google Patents
High-pressure gas supply system of marine power plant Download PDFInfo
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- CN203162531U CN203162531U CN 201320035198 CN201320035198U CN203162531U CN 203162531 U CN203162531 U CN 203162531U CN 201320035198 CN201320035198 CN 201320035198 CN 201320035198 U CN201320035198 U CN 201320035198U CN 203162531 U CN203162531 U CN 203162531U
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Abstract
The utility model provides a high-pressure gas supply system of a marine power plant and relates to a gas supply system taking gasified natural gas as fuel. The system comprises a high-pressure gas supply system main body and a low-pressure gas supply system, wherein the high-pressure gas supply system main body is formed by orderly connecting an LNG (Liquefied Natural Gas) immersed pump arranged in a liquid storage tank with an LNG daily tank, a booster pump, a high-pressure buffer tank, an LNG gasifier, a high-pressure natural gas heater and a main power plant through pipelines; the low-pressure gas supply system is formed by orderly connecting the top end of the liquid storage tank with a gas-liquid separator, a compressor, a low-pressure buffer tank, a low-pressure natural gas heater and an auxiliary power plant through pipelines; and the LNG gasifier, the high-pressure natural gas heater and the low-pressure natural gas heater are connected with a heating circulating unit through pipelines. The high-pressure gas supply system solves the problems of fuel storage, gas gasification and heating, and pressurization of gas to more than 300 Bar that of a ship with liquefied natural gas (LNG) as the fuel, in particular a non-LNG transport ship; and therefore, the high efficiency performance of a low-speed two-stroke diesel engine is improved and the energy consumption is greatly saved.
Description
Technical field
The utility model relates to a kind of high-pressure gas supply system of Ship Power Equipment, is to be the high-pressure gas supply system of fuel with the rock gas.
Background technique
In recent years, along with pollution of atmosphere is serious day by day, the whole world is to the serious day by day lattice of the control of the gas discharging of boats and ships.Developed countries such as America and Europe have set up the emission control district of oneself, reach TierII and TierIII emission standard at the appointed time.
The boats and ships natural gas fuel can reduce the fuel cost of carbon emission more than 30% and discharged nitrous oxides, the sulfide emission more than 98% and about 30%.Therefore, to use rock gas instead be that fuel is energy-saving and emission-reduction, improves the most directly effective measures of transport benefits to boats and ships.In recent years, nearly all shipowner is considering that it is the boats and ships of main fuel that its existing ship is transformed into LNG, and being transformed at least with LNG is the boats and ships of auxiliary fuel, in order to can use LNG in various countries' emission control district, reaches emission standard.Nearly all shipyard is the various boats and ships of fuel consider building with LNG all, and China first be that the double fuel tugboat project of main fuel has begun to build with LNG, provide LNG fuel storage supply system by our company, adopt the low service system of our company.
The LNG fuel requirement is through gasification heating, is transformed into the requirement that gas more than 0 ℃ could satisfy the cabin power plant from about-160 ℃ liquid state.Gasification and heating process need heat energy, and heating source can utilize the used heat of cabin power plant, the waste gas that also can utilize boiler to produce.
The lower two-stroke low speed dual-fuel diesel engine of the energy consumption developed of present stage is (as MAN B﹠amp; The MEGI type main frame of W exploitation), the supply gas pressure that needs is about 300bar, and gas is compressed to this stress level, and not only the volume of compressor is very huge, expensive, and the power consumption that needs is also very high.
Summary of the invention
In order to overcome problems of the prior art, the utility model provides a kind of high-pressure gas supply system of Ship Power Equipment, being used for solving with LNG Liquefied natural gas (LNG) is the boats and ships of fuel, be the fuel storage of non-LNG ships that transport and gas gasification, heating especially, be forced into more than the 300Bar, improve the high efficiency performance of low speed two stroke diesel engine, saved energy consumption greatly.
The technological scheme that the utility model adopts is: a kind of high-pressure gas supply system of Ship Power Equipment, it comprises a LNG fueling station, the liquid container that is provided with supervisory device and low-pressure fuel gas supply system, it also comprises a high-pressure gas supply system, and described high-pressure gas supply system adopts the LNG immersed pump that is arranged in the liquid container to adopt pipeline to be connected successively with main power plant with LNG working tank, suction booster, high-pressure buffering pot, LNG vaporizer, high-pressure natural gas heater; Described low-pressure fuel gas supply system adopts pipeline to be connected successively with gas-liquid separator, compressor, low pressure buffer jar, low pressure natural gas heater and auxilliary power plant on the top of liquid container; Described LNG vaporizer, high-pressure natural gas heater and low pressure natural gas heater adopt pipeline to be connected with the Heating Cyclic unit.
It is heat transferring medium that described Heating Cyclic unit adopts antifreeze liquid, a swelling water tank connects two heat exchangers and electric heater of two circulating water pump in parallel, parallel connection successively, the outlet of electric heater connects the antifreeze liquid import of low pressure natural gas heater and LNG vaporizer respectively, LNG vaporizer and high-pressure natural gas heater are for being connected in series, the antifreeze liquid outlet of low pressure natural gas heater and high-pressure natural gas heater is connected with the import of circulating water pump, and heat exchanger is connected with the circulating hot water piping of power plant.
Described antifreeze liquid adopts ethylene glycol and water according to the rules than the row configuration, is 50% ethylene glycol and 50% water preparation according to volume usually.Described swelling water tank is provided with ventilation mouth, ventilation mouth is connected to ventilative mast, the high-pressure gas pipeline leaks to the antifreeze liquid system, combustion gas is separated in swelling water tank, combustion gas is disposed in the atmosphere by ventilation mouth, the antifreeze liquid system layout makes heat medium circulation continuously between safety zone and hazardous area in the safety zone.
The beneficial effect that the utility model reaches is: the high-pressure gas supply system of this Ship Power Equipment comprises a high-pressure gas supply system and low-pressure fuel gas supply system, and the LNG immersed pump that the utilization of high-pressure gas supply system is installed in the liquid container is connected with main power plant with LNG working tank, suction booster, high-pressure buffering pot, LNG vaporizer, high-pressure natural gas heater successively by pipeline; The low-pressure fuel gas supply system adopts pipeline to be connected successively with gas-liquid separator, compressor, low pressure buffer jar, low pressure natural gas heater and auxilliary power plant on the top of liquid container; LNG vaporizer, high-pressure natural gas heater and low pressure natural gas heater adopt pipeline to be connected with the Heating Cyclic unit.It is the boats and ships of fuel that this fuel gas supply system has solved with LNG Liquefied natural gas (LNG), be the fuel storage of non-LNG ships that transport and gas gasification, heating especially, combustion gas is forced into more than the 300Bar, improved the high efficiency performance of low speed two stroke diesel engine, goods steam in the LNG liquid container has also obtained effective utilization simultaneously, offer low-pressure fuel gas equipment, saved energy consumption greatly.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified
Fig. 1 is a kind of high-pressure gas supply system figure of Ship Power Equipment.
Among the figure: 1, LNG fueling station, 2, liquid container, 2a, supervisory device, 2b, safety valve, 3, LNG immersed pump, 4, the LNG working tank, 5, suction booster, 6, high-pressure buffering pot, 7, the LNG vaporizer, 8, the high-pressure natural gas heater, 9, gas-liquid separator, 10, compressor, 11, the low pressure buffer jar, 12, low pressure natural gas heater, 13, the Heating Cyclic unit, 13a, swelling water tank, 13b, circulating water pump, 13c, heat exchanger, 13d, electric heater.
Embodiment
Fig. 1 shows a kind of high-pressure gas supply system figure of Ship Power Equipment.Among the figure, the high-pressure gas supply system of Ship Power Equipment comprises a LNG fueling station 1, is provided with the liquid container 2 of supervisory device 2a, low-pressure fuel gas supply system and high-pressure gas supply system.The high-pressure gas supply system adopts the LNG immersed pump 3 that is arranged in the liquid container 2 to adopt pipeline to be connected successively with main power plant with LNG working tank 4, suction booster 5, high-pressure buffering pot 6, LNG vaporizer 7, high-pressure natural gas heater 8.The low-pressure fuel gas supply system adopts pipeline to be connected successively with gas-liquid separator 9, compressor 10, low pressure buffer jar 11, low pressure natural gas heater 12 and auxilliary power plant on the top of liquid container 2.LNG vaporizer 7, high-pressure natural gas heater 8 and low pressure natural gas heater 12 adopt pipeline to be connected with Heating Cyclic unit 13.
It is heat transferring medium that Heating Cyclic unit 13 adopts antifreeze liquid, and it is 50% ethylene glycol and 50% water preparation that antifreeze liquid adopts volume.A swelling water tank 13a connects two heat exchanger 13c and electric heater 13d of two circulating water pump 13b in parallel, parallel connection successively, the outlet of electric heater 13d connects the antifreeze liquid import of low pressure natural gas heater 12 and LNG vaporizer 7 respectively, LNG vaporizer 7 and high-pressure natural gas heater 8 are for being connected in series, the antifreeze liquid outlet of low pressure natural gas heater 12 and high-pressure natural gas heater 8 is connected with the import of circulating water pump 13b, and heat exchanger 13c is connected with the circulating hot water piping of power plant.Swelling water tank 13a is provided with antifreeze liquid interface and ventilative interface.
Adopt the high-pressure gas supply system of technique scheme, supply gas pressure is used for MAN B﹠amp more than 300bar; The high-power main frame of W ME-GI type low speed two-stroke.Gas can only be with multistage (5-6 level) gas compressor from be pressurized to 315bar near atmospheric pressure, and the compressor volume is huge, and energy consumption is high, involves great expense.Therefore native system is designed to main frame supply high-pressure gas: utilize the LNG immersed pump in the storage tank that the LNG of liquid state is lightered to the LNG working tank, the recycling suction booster is forced into more than the 315bar liquid to the high pressure knock out drum, and main frame is supplied with in gasification under the pressure of 315bar/heating back.For the goods steam in the storage tank, before entering the goods compressor, at first by a mist separator, liquid particles in the goods steam is separated, arrive the combustion gas knock out drum through (pressure is about 6Bar) after the compression of compressor, be heated to more than 0 ℃ through the temperature of goods heater with combustion gas subsequently.Low pressure gas equipment on the storeship, as: generator, boiler etc.
For making the long term storage aboard ship of LNG fuel, so that shipowner or charterers are chosen in non-emission control district according to IF380 and LNG price and use which kind of fuel (the emission control district can only use LNG), the little capacity compressors of system disposition one cover low pressure, be used for natural evaporation gas (BOG) is extracted out from storage tank, for the low pressure gas equipment, as generator set, boiler etc.In addition, advise also that usually shipyard arranges an axle generator (PTO/PTI) at main shaft, when BOG for a long time, generator by PTI to the main shaft transmitting power; When BOG after a little while, axle generator by PTO to power station power supply.Its main feature is:
1. gasify/heating after adopting suction booster to be pressurized to 350bar, than adopting the gas compressor supercharging, energy consumption is saved more than 95%.
2. adopt less and low pressure compressor treatments B OG, supply with the low pressure gas equipment, can make LNG fuel longer-term storage aboard ship.
3. consume BOG owing to have at least a generator set to move on the ship always, like this, the design pressure of storage tank can reduce.
4. if be provided with the axle generator of PTO and PTI function, energy consumption further reduces, and the boats and ships flexibility is stronger.
Claims (3)
1. the high-pressure gas supply system of a Ship Power Equipment, it comprises a LNG fueling station (1), is provided with liquid container (2) and the low-pressure fuel gas supply system of supervisory device (2a), it is characterized in that: it also comprises a high-pressure gas supply system, and described high-pressure gas supply system adopts the LNG immersed pump (3) that is arranged in the liquid container (2) to adopt pipeline to be connected successively with main power plant with LNG working tank (4), suction booster (5), high-pressure buffering pot (6), LNG vaporizer (7), high-pressure natural gas heater (8); Described low-pressure fuel gas supply system adopts pipeline to be connected successively with auxilliary power plant with gas-liquid separator (9), compressor (10), low pressure buffer jar (11), low pressure natural gas heater (12) on the top of liquid container (2); Described LNG vaporizer (7), high-pressure natural gas heater (8) and low pressure natural gas heater (12) adopt pipeline to be connected with Heating Cyclic unit (13).
2. the high-pressure gas supply system of a kind of Ship Power Equipment according to claim 1, it is characterized in that: it is heat transferring medium that described Heating Cyclic unit (13) adopts antifreeze liquid, a swelling water tank (13a) connects two circulating water pump (13b) in parallel successively, two heat exchangers (13c) and an electric heater (13d) in parallel, the outlet of electric heater (13d) connects the antifreeze liquid import of low pressure natural gas heater (12) and LNG vaporizer (7) respectively, LNG vaporizer (7) and high-pressure natural gas heater (8) are for being connected in series, the antifreeze liquid outlet of low pressure natural gas heater (12) and high-pressure natural gas heater (8) is connected with the import of circulating water pump (13b), and heat exchanger (13c) is connected with the circulating hot water piping of power plant.
3. the high-pressure gas supply system of a kind of Ship Power Equipment according to claim 2, it is characterized in that: described swelling water tank (13a) is provided with ventilation mouth, ventilation mouth is connected to ventilative mast, the high-pressure gas pipeline leaks to the antifreeze liquid system, combustion gas is separated in swelling water tank (13a), combustion gas is disposed in the atmosphere by ventilation mouth, and the antifreeze liquid system layout makes heat medium circulation continuously between safety zone and hazardous area in the safety zone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320035198 CN203162531U (en) | 2013-01-23 | 2013-01-23 | High-pressure gas supply system of marine power plant |
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| CN 201320035198 CN203162531U (en) | 2013-01-23 | 2013-01-23 | High-pressure gas supply system of marine power plant |
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| CN203162531U true CN203162531U (en) | 2013-08-28 |
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| CN 201320035198 Expired - Fee Related CN203162531U (en) | 2013-01-23 | 2013-01-23 | High-pressure gas supply system of marine power plant |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103953848A (en) * | 2014-05-04 | 2014-07-30 | 国鸿液化气机械工程（大连）有限公司 | Self-balancing re-liquefying system and work method thereof |
| CN103953457A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Multi-stage crossed heat exchange device of MDO (Marine Diesel Oil)-LNG (Liquefied Natural Gas) dual-fuel engine |
| CN104265512A (en) * | 2014-09-17 | 2015-01-07 | 刘国满 | High-pressure/low-pressure gas supply system of ship power plant |
| CN104406052A (en) * | 2014-10-29 | 2015-03-11 | 沪东重机有限公司 | LG (Liquefied Gas) gasification system and method |
| CN104696186A (en) * | 2015-01-20 | 2015-06-10 | 沪东重机有限公司 | Pressure boosting unit provided with LNG (liquefied natural gas) pumps connected in parallel |
| CN105179933A (en) * | 2015-08-17 | 2015-12-23 | 沈阳航空航天大学 | Universal aircraft power system with liquefied natural gas (LNG) as fuel and fuel supply method of universal aircraft power system |
| CN105683039A (en) * | 2013-10-11 | 2016-06-15 | 三井造船株式会社 | Fuel gas supply system for liquid gas transportation vessel |
| CN105765290A (en) * | 2013-11-14 | 2016-07-13 | 微软技术许可有限责任公司 | Gas supply shock absorber for datacenter power generation |
| CN106168330A (en) * | 2016-08-26 | 2016-11-30 | 合肥工业大学 | Vehicle-mounted LNG gas cylinder voltage-stabilizing system and control method thereof |
| CN106322105A (en) * | 2016-10-17 | 2017-01-11 | 泰恩博能燃气设备（天津）股份有限公司 | Gas circulation type gas station |
| CN106458310A (en) * | 2014-08-29 | 2017-02-22 | 川崎重工业株式会社 | Ship |
| CN107830403A (en) * | 2017-10-25 | 2018-03-23 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas liquid-supplying system |
| CN111306438A (en) * | 2020-03-24 | 2020-06-19 | 江苏科技大学 | Gasification device of double-fuel machine LNG high-low pressure gas supply system |
| CN113006975A (en) * | 2021-03-05 | 2021-06-22 | 长江三星能源科技股份有限公司 | Ship LNG supply system simulation and test device |
| CN113958875A (en) * | 2021-10-20 | 2022-01-21 | 中国船舶重工集团柴油机有限公司 | High-pressure fuel gas supply system and method for ship |
| WO2022143287A1 (en) * | 2020-12-28 | 2022-07-07 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycling system |
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2013
- 2013-01-23 CN CN 201320035198 patent/CN203162531U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105683039A (en) * | 2013-10-11 | 2016-06-15 | 三井造船株式会社 | Fuel gas supply system for liquid gas transportation vessel |
| CN105765290A (en) * | 2013-11-14 | 2016-07-13 | 微软技术许可有限责任公司 | Gas supply shock absorber for datacenter power generation |
| CN103953457A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Multi-stage crossed heat exchange device of MDO (Marine Diesel Oil)-LNG (Liquefied Natural Gas) dual-fuel engine |
| CN103953457B (en) * | 2014-03-21 | 2015-06-17 | 哈尔滨工程大学 | Multi-stage crossed heat exchange device of MDO (Marine Diesel Oil)-LNG (Liquefied Natural Gas) dual-fuel engine |
| CN103953848A (en) * | 2014-05-04 | 2014-07-30 | 国鸿液化气机械工程（大连）有限公司 | Self-balancing re-liquefying system and work method thereof |
| CN106458310B (en) * | 2014-08-29 | 2018-08-28 | 川崎重工业株式会社 | Ship |
| CN106458310A (en) * | 2014-08-29 | 2017-02-22 | 川崎重工业株式会社 | Ship |
| CN104265512B (en) * | 2014-09-17 | 2017-05-24 | 刘国满 | High-pressure/low-pressure gas supply system of ship power plant |
| CN104265512A (en) * | 2014-09-17 | 2015-01-07 | 刘国满 | High-pressure/low-pressure gas supply system of ship power plant |
| CN104406052A (en) * | 2014-10-29 | 2015-03-11 | 沪东重机有限公司 | LG (Liquefied Gas) gasification system and method |
| CN104696186A (en) * | 2015-01-20 | 2015-06-10 | 沪东重机有限公司 | Pressure boosting unit provided with LNG (liquefied natural gas) pumps connected in parallel |
| CN105179933A (en) * | 2015-08-17 | 2015-12-23 | 沈阳航空航天大学 | Universal aircraft power system with liquefied natural gas (LNG) as fuel and fuel supply method of universal aircraft power system |
| CN106168330B (en) * | 2016-08-26 | 2018-11-06 | 合肥工业大学 | Vehicle-mounted LNG gas cylinders voltage-stabilizing system and its control method |
| CN106168330A (en) * | 2016-08-26 | 2016-11-30 | 合肥工业大学 | Vehicle-mounted LNG gas cylinder voltage-stabilizing system and control method thereof |
| CN106322105A (en) * | 2016-10-17 | 2017-01-11 | 泰恩博能燃气设备（天津）股份有限公司 | Gas circulation type gas station |
| CN107830403A (en) * | 2017-10-25 | 2018-03-23 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas liquid-supplying system |
| CN111306438A (en) * | 2020-03-24 | 2020-06-19 | 江苏科技大学 | Gasification device of double-fuel machine LNG high-low pressure gas supply system |
| CN111306438B (en) * | 2020-03-24 | 2021-09-07 | 江苏科技大学 | Gasification device of double-fuel machine LNG high-low pressure gas supply system |
| WO2022143287A1 (en) * | 2020-12-28 | 2022-07-07 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycling system |
| CN113006975A (en) * | 2021-03-05 | 2021-06-22 | 长江三星能源科技股份有限公司 | Ship LNG supply system simulation and test device |
| CN113958875A (en) * | 2021-10-20 | 2022-01-21 | 中国船舶重工集团柴油机有限公司 | High-pressure fuel gas supply system and method for ship |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160123 |
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| EXPY | Termination of patent right or utility model |