CN102926894A - Diesel oil-LNG (liquefied natural gas) dual-fuel hybrid power ship LNG vaporizing device - Google Patents
Diesel oil-LNG (liquefied natural gas) dual-fuel hybrid power ship LNG vaporizing device Download PDFInfo
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- CN102926894A CN102926894A CN2012105028589A CN201210502858A CN102926894A CN 102926894 A CN102926894 A CN 102926894A CN 2012105028589 A CN2012105028589 A CN 2012105028589A CN 201210502858 A CN201210502858 A CN 201210502858A CN 102926894 A CN102926894 A CN 102926894A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The invention discloses a diesel oil-LNG (liquefied natural gas) dual-fuel hybrid power ship LNG vaporizing device which comprises a diesel engine sea water opening type cooling circuit and an LNG vaporizing loop, wherein one end of a stop valve of the diesel engine sea water opening type cooling circuit is communicated with a sea water main pipe, and the other end of the stop valve is communicated to a sea water pump through a sea water pipeline; an output end of the sea water pump is connected with an input end of a fresh water cooler through a middle cooler and a lubricating oil cooler; the LNG vaporizing loop comprises a liquid stream observer and a water bath vaporizer, the water bath vaporizer comprises an outer tank and an inner container, the output end of the fresh water cooler is communicated to the outer tank of the water bath vaporizer by passing through the sea water pipeline and the liquid stream observer and then passes through the output end of the outer tank and a check valve to be lead to the outside of a ship board; and the output end of an LNG gas storage tank is communicated with the inner container of the water bath vaporizer, natural gas after being heated and vaporized is lead to the air main pipe of a dual-fuel diesel engine from the inner container of the vaporizer, and the vaporizing rate of the natural gas is improved by more than 20%. The normal gas supply quantity of the diesel engine is guaranteed, and the diesel oil-LNG dual-fuel hybrid power ship LNG vaporizing device has obvious economical efficiency and favorable vaporization efficiency.
Description
Technical field
The present invention relates to a kind of fuel-device of ships that transport, particularly relate to a kind of LNG vaporizing unit of bavin oil – LNG double fuel mixed power boats and ships, belong to technical field of ships.
Background technique
In recent years, greatly develop the energy-conserving and environment-protective industry in country, advance under the policy guide of low-carbon economy, administer ship oil sewage exhaust emission and become the most important thing, the boats and ships of application Chai You – LNG double fuel marine diesel engine, as the new way that advances the low-carbon economy development, to developing green shipping, reducing emission of carbon dioxide, make the low-carbon (LC) boats and ships and play a very important role.
LNG (Liquified Natural Gas) is the english abbreviation of LNG Liquefied natural gas, is a kind of colourless liquid, mainly is comprised of methane.Component may contain a small amount of ethane, propane, nitrogen or usually be present in other components in the rock gas.LNG is that the rock gas by gaseous state under normal pressure is cooled to about-163 ℃ the liquid that makes it to condense into.The volume of LNG is approximately 1/600 of gaseous state.Saving storage and transportation space and the cost that can greatly save after the natural gas liquefaction, and have large, the performance high of calorific value more are conducive to long distance transportation, storage, make the application mode of rock gas more flexible, wider.
Bavin oil – LNG double fuel mixed power boats and ships can use bavin oil – LNG double fuel or two kinds of mode operations of pure diesel oil, when using gaseous fuel, the LNG that liquefies in the gas holder must be vaporizated into NG (rock gas) through the LNG vaporizer and use.Existing bavin oil – LNG double fuel mixed power boats and ships use air cooled LNG vaporizer, the gaseous fuel that motor absorbs is few, and evaporating capacity is few, is subjected to again the factor affecting of environment larger, be unfavorable for providing the diesel combustion evaporating capacity, cause engine combustion insufficient.
The model utility of ZL201020291238.1 discloses a kind of novel inland river diesel-LNG double fuel hybrid power ship, comprise hull and power system, described hull comprises the deck and is arranged on the cabin of hull afterbody, cargo tank, described power system comprises at least one diesel engine, LNG gas holder and mixed combustion control system, described diesel engine is arranged in the cabin, described LNG gas holder is arranged on the ship after-deck, the outlet of LNG. gas holder is connect the low temperature gasification device, again successively through electric-control stop valve, voltage stabilizer, the natural gas injection unit leads to the suction tude of motor, and this utility model patent does not provide the structure of low temperature gasification device.
The utility model patent of ZL201020269149.7 discloses a kind of " the LNG device of Chai You – LNG dual-fuel inland river dry-cargo ship ", comprise the LNG gas holder, isolate empty cabin, the LNG delivery line, the LNG gas holder is fixed on the quarter Main deck, between the cabin on LNG gas holder and the Main deck, be provided with the empty cabin of isolation, above the LNG gas holder, be provided with sunshade, the output terminal of LNG gas holder is connected with natural gas transport pipeline one end, the natural gas transport pipeline the other end passes the quarter Main deck and is lowered to the cabin, link to each other with diesel engine air house steward, this utility model patent does not provide the vaporizing unit of LNG.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, easy accessibility, diesel-LNG double fuel mixed power vaporizing unit that versatility is good, this device can be guaranteed the vaporization quality that motor uses, and improves vaporization efficency.
The present invention is achieved by the following technical programs:
A kind of bavin oil – LNG double fuel mixed power boats and ships LNG vaporizing unit, comprise the diesel engine seawater once-through cycle and the LNG vaporization loop that are arranged in the cabin, described diesel engine seawater once-through cycle comprises stop valve, sea water pump, seawaterline, intercooler, oil cooler and fresh-water cooler, stop valve one end connecting the sea water house steward, the stop valve the other end leads to sea water pump by seawaterline, described sea water pump output terminal communicates with the oil cooler input end through intercooler, and the oil cooler output terminal links to each other with the fresh-water cooler input end by seawaterline.Described LNG vaporization loop comprises liquid stream viewer and water bath carburetor, described water bath carburetor comprises outer tank and the inner bag that is enclosed within the outer tank, after the fresh-water cooler output terminal passes into the outer tank and the cavity between the inner bag of water bath carburetor by seawaterline, liquid stream viewer, lead to outside the ship side by outer tank output terminal and safety check again, the LNG pipeline of LNG gas holder output terminal passes outer tank and enters inner bag, and the gas pipeline after the heating vaporization leads to the dual-fuel diesel engine air header.
Purpose of the present invention can also further realize by following technical measures.
The vaporizing unit of aforesaid bavin oil – LNG double fuel mixed power boats and ships, wherein said water bath carburetor is arranged near the gas holder place.
The vaporizing unit of aforesaid bavin oil – LNG double fuel mixed power boats and ships, wherein said water bath carburetor is arranged on the cabin near the diesel engine position; This water bath carburetor is separated in the control room separately; The fire-protection rating in described control room is the A60 level.
The present invention adopts double-deck water bath carburetor vaporization LNG, the vaporization rate of rock gas is improved more than 20%, and be not subjected to the impact of environment and weather, guarantees the normal air demand to diesel engine, has significant Economy and good vaporization efficency.The present invention has reduced construction cost, has also avoided vaporizer to be subjected to the impact of weather environment to reduce vaporization efficency, has promoted simultaneously the substitution rate of the mixed combustion of diesel-LNG double fuel powered ship, is convenient to the abundant burning of gas fuel, has also reduced the discharge amount of oily water.
Advantage and disadvantage of the present invention will be for illustration and explanation by the non-limitative illustration of following preferred embodiment, and these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 implements principle schematic of the present invention;
Fig. 2 is the plan view that water bath carburetor of the present invention is installed in ship stern crewman ceiling deck.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention includes the diesel engine seawater once-through cycle 1 and the LNG vaporization loop 2 that are arranged in the cabin, diesel engine seawater once-through cycle 1 comprises stop valve 11, sea water pump 12, seawaterline 13, intercooler 14, oil cooler 15 and fresh-water cooler 16, stop valve 11 1 end connecting the sea water house stewards, the other end leads to sea water pump 12 by seawaterline 13, described sea water pump 12 output terminals communicate with oil cooler 15 input ends through intercooler 14, and oil cooler 15 output terminals link to each other with fresh-water cooler 16 input ends by seawaterline 13.LNG vaporization loop 2 comprises liquid stream viewer 21 and water bath carburetor 22, liquid stream viewer 21 can be observed the temperature that flows through seawater, pressure, water bath carburetor 22 comprises outer tank 221 and the inner bag 222 that is enclosed within the outer tank 221, fresh-water cooler 16 output terminals pass through seawaterline, after liquid stream viewer 21 passes into the outer tank 221 and the cavity between the inner bag 222 of water bath carburetor 22, lead to outside the ship side by outer tank output terminal and safety check 23 again, the LNG pipeline 24 that LNG gas holder 3 output terminals above deck are set passes outer tank 221 and enters inner bag 222, and the NG pipeline 25 after the heating vaporization leads to the dual-fuel diesel engine air header.
As shown in Figure 1, embodiment one water bath carburetor 22 is arranged on the cabin near diesel engine 4 positions; This water bath carburetor 22 is separated in the control room separately; The fire-protection rating in described control room is the A60 level, and namely in the cellulose type fire, structural integrity was kept 60 minutes at least.
As shown in Figure 2, embodiment two water bath carburetor 22 is installed on the ship stern crewman ceiling deck 5, is positioned at a side of LNG gas holder 3, is fixed on the quarter crewman ceiling deck by fastening piece, and water bath carburetor 22 is at least 760mm apart from the gun wale distance L.
The present invention utilizes diesel engine open type salt water cooling system cooling diesel engine part, sea water pump 12 extracts the seawater of low temperature outside Sea Chest, being pressurized to 2～5MPa delivers in oil cooler 15 and the fresh-water cooler 16, make lubricant oil obtain cooling, and from the parts of the high temperature of marine diesel engine 4 absorbing heat.Draw the fresh-water cooler 16 of flowing through through the seawater in fresh-water cooler 16 seawater chambeies by heat exchange and talked the heat that the water cavity circulating cooling is talked water, so that the ocean temperature in seawater chamber is elevated to about 60 ℃, seawater about 60 ℃ enters water bath carburetor 22 input ends, water bath carburetor 22 output terminals are discharged outboard by safety check 23 with seawater.LNG (LNG Liquefied natural gas) simultaneously-163 ℃ enters the inner bag 222 of water bath carburetor 22, so that inner bag 222 temperature are lower than in the water bath carburetor 22 cooling water temperature in the cavity between the outer tank 221 and inner bag 222, formed temperature difference, utilization was cooled off and was formed the NG(rock gas after heat that the ocean temperature of diesel engine raises makes low-temperature liquefaction natural gas vaporization in the inner bag 222), be input in the dual-fuel diesel engine air header, satisfy the diesel fuel usage requirement.
In addition to the implementation, the present invention can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (5)
1. bavin oil – LNG double fuel mixed power boats and ships LNG vaporizing unit, comprise the diesel engine seawater once-through cycle that is arranged in the cabin, described diesel engine seawater once-through cycle comprises stop valve, sea water pump, seawaterline, intercooler, oil cooler and fresh-water cooler, stop valve one end connecting the sea water house steward, the stop valve the other end leads to sea water pump by seawaterline, described sea water pump output terminal communicates with the oil cooler input end through intercooler, and the oil cooler output terminal links to each other with the fresh-water cooler input end by seawaterline; It is characterized in that, also comprise LNG vaporization loop, described LNG vaporization loop comprises liquid stream viewer and water bath carburetor, described water bath carburetor comprises outer tank and the inner bag that is enclosed within the outer tank, after the fresh-water cooler output terminal passes into the outer tank and the cavity between the inner bag of water bath carburetor by seawaterline, liquid stream viewer, lead to outside the ship side by outer tank output terminal and safety check again, the LNG pipeline of LNG gas holder output terminal passes outer tank and enters inner bag, and the gas pipeline after the heating vaporization leads to the dual-fuel diesel engine air header.
2. bavin oil – LNG double fuel mixed power boats and ships LNG vaporizing unit as claimed in claim 1 is characterized in that described water bath carburetor is arranged near the gas holder place.
3. bavin oil – LNG double fuel mixed power boats and ships LNG vaporizing unit as claimed in claim 1 is characterized in that described water bath carburetor is arranged on the cabin near the diesel engine position.
4. bavin oil – LNG double fuel mixed power boats and ships LNG vaporizing unit as claimed in claim 3 is characterized in that, is arranged on the cabin and separates in the control room separately near the water bath carburetor of diesel engine position.
5. bavin oil – LNG double fuel mixed power boats and ships LNG vaporizing unit as claimed in claim 4 is characterized in that the fire-protection rating in described control room is the A60 level.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105028589A CN102926894A (en) | 2012-11-30 | 2012-11-30 | Diesel oil-LNG (liquefied natural gas) dual-fuel hybrid power ship LNG vaporizing device |
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| CN2012105028589A CN102926894A (en) | 2012-11-30 | 2012-11-30 | Diesel oil-LNG (liquefied natural gas) dual-fuel hybrid power ship LNG vaporizing device |
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| CN102926894A true CN102926894A (en) | 2013-02-13 |
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| CN2012105028589A Pending CN102926894A (en) | 2012-11-30 | 2012-11-30 | Diesel oil-LNG (liquefied natural gas) dual-fuel hybrid power ship LNG vaporizing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615330A (en) * | 2013-11-05 | 2014-03-05 | 江苏现代造船技术有限公司 | Double-fuel power device of power driven vessel |
| 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 |
| CN106907273A (en) * | 2017-03-15 | 2017-06-30 | 广西利维船舶制造有限公司 | A kind of ship LNG vaporization system of utilization river heat supply |
| CN110182350A (en) * | 2019-07-01 | 2019-08-30 | 北部湾大学 | A kind of inland river LNG double fuel Power Vessel |
| CN111252197A (en) * | 2016-03-18 | 2020-06-09 | 现代重工业株式会社 | Ship with gas regasification system |
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| CN201530470U (en) * | 2009-09-25 | 2010-07-21 | 天津港轮驳有限公司 | Device for recycling heat energy of marine main engine cylinder jacket cooling water |
| CN201800907U (en) * | 2010-08-05 | 2011-04-20 | 孙加成 | Novel inland diesel-liquefied natural gas (LNG) dual-fuel mixed power vessel |
| CN201834200U (en) * | 2010-07-23 | 2011-05-18 | 江苏现代造船技术有限公司 | LNG device of diesel oil-LNG dual-fuel inland river dry-cargo ship |
| CN102235274A (en) * | 2010-04-27 | 2011-11-09 | 潍柴动力股份有限公司 | Liquefied fuel power system and method for operating same |
| KR20120005779A (en) * | 2010-07-09 | 2012-01-17 | 대우조선해양 주식회사 | Fuel feed system of dual fuel engine for ship |
| CN102454508A (en) * | 2010-10-26 | 2012-05-16 | 博格华纳贝鲁系统有限公司 | Vaporizer for liquefied petroleum gas and vaporizer |
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2012
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Patent Citations (6)
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| CN201530470U (en) * | 2009-09-25 | 2010-07-21 | 天津港轮驳有限公司 | Device for recycling heat energy of marine main engine cylinder jacket cooling water |
| CN102235274A (en) * | 2010-04-27 | 2011-11-09 | 潍柴动力股份有限公司 | Liquefied fuel power system and method for operating same |
| KR20120005779A (en) * | 2010-07-09 | 2012-01-17 | 대우조선해양 주식회사 | Fuel feed system of dual fuel engine for ship |
| CN201834200U (en) * | 2010-07-23 | 2011-05-18 | 江苏现代造船技术有限公司 | LNG device of diesel oil-LNG dual-fuel inland river dry-cargo ship |
| CN201800907U (en) * | 2010-08-05 | 2011-04-20 | 孙加成 | Novel inland diesel-liquefied natural gas (LNG) dual-fuel mixed power vessel |
| CN102454508A (en) * | 2010-10-26 | 2012-05-16 | 博格华纳贝鲁系统有限公司 | Vaporizer for liquefied petroleum gas and vaporizer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615330A (en) * | 2013-11-05 | 2014-03-05 | 江苏现代造船技术有限公司 | Double-fuel power device of power driven vessel |
| 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 |
| CN111252197A (en) * | 2016-03-18 | 2020-06-09 | 现代重工业株式会社 | Ship with gas regasification system |
| US11136103B2 (en) | 2016-03-18 | 2021-10-05 | Hyundai Heavy Industries Co., Ltd. | Ship having gas regasification system |
| CN106907273A (en) * | 2017-03-15 | 2017-06-30 | 广西利维船舶制造有限公司 | A kind of ship LNG vaporization system of utilization river heat supply |
| CN110182350A (en) * | 2019-07-01 | 2019-08-30 | 北部湾大学 | A kind of inland river LNG double fuel Power Vessel |
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Application publication date: 20130213 |