CN104456066A - Economic type fuel supply device applicable to small-size LNG power ship - Google Patents
Economic type fuel supply device applicable to small-size LNG power ship Download PDFInfo
- Publication number
- CN104456066A CN104456066A CN201410824035.7A CN201410824035A CN104456066A CN 104456066 A CN104456066 A CN 104456066A CN 201410824035 A CN201410824035 A CN 201410824035A CN 104456066 A CN104456066 A CN 104456066A
- Authority
- CN
- China
- Prior art keywords
- supercharging
- storage tank
- liquid
- lng
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides an economic type fuel supply device applicable to a small-size LNG power ship. The economic type fuel supply device comprises a fireproof screen, an LNG storage tank, a self-supercharging gasifier, a vaporizer, a ship main engine, a supercharging liquid inlet pipe, a liquid discharge pipe and a supercharging gas return pipe, is scientific and reasonable in design, easy to realize, and convenient to operate, when a liquid drain valve of the LNG storage tank is in draining and the pressure in the storage tank is lower than the set pressure value of a supercharging and regulating valve, liquid flows out through the supercharging liquid inlet pipe and flows in the self-supercharging gasifier through the supercharging liquid inlet valve and the supercharging and regulating valve, gas generated by heating of the self-supercharging gasifier returns into the LNG storage tank so as to achieve the self-supercharging effect, when the pressure exceeds the set pressure value of a decompression regulator, a decompression regulating valve is automatically switched on, a liquid outlet valve preferentially uses gas so as to achieve the saving effect, the usage rate of fuel gas in the LNG storage tank can be improved, and the unnecessary emission of the LNG fuel gas due to pressure rise of a tank body can be prevented.
Description
Technical field
The present invention relates to Chinese inland navigation craft shipping field.
Background technique
The environmental problems such as current China inland navigation craft is power substantially with diesel engine, and fuel consumption is large, PM2.5 exceeds standard become increasingly conspicuous, and call for responding country, the theory of green low-carbon, energy-saving and emission-reduction obtains in Ship Design and construction applications to be paid attention to widely.The application that clean energy resource substitutes traditional fuel has become the main trend of industry development, and rock gas has economy, environmental protection, many clear superiorities such as stable, the choosing that the head that LNG Liquefied natural gas (LNG) has become boats and ships novel environment friendly power works as the representative being suitable for clean energy resource.And China's inland navigation craft uses LNG less as the boats and ships of power fuel, based on the air pollution problems inherent be on the rise at present, use LNG as fuel, greatly can improve the pollution problem of shipping business to air.Using LNG as Ship Propeling fuel, its supply system has very big-difference with using fuel oil, and rational circuit design can improve fuel utilization rate.And current LNG is unreasonable as the ship pipeline design portion of power fuel, fuel utilization efficiency is low, and LNG combustion gas often can produce the phenomenon of meaningless discharge, waste resource, larger on the impact of environment.
Summary of the invention
Problem to be solved by this invention is to provide a kind of economical fuel supply device being applicable to small-sized LNG powered ship; solve existing LNG unreasonable as the ship pipeline design portion of power fuel; fuel utilization efficiency is low; LNG combustion gas often can produce the phenomenon of meaningless discharge; waste resource, the problem larger on the impact of environment.
For overcoming the above problems scheme of the present invention:
A kind of economical fuel supply device being applicable to small-sized LNG powered ship, comprise flame screen, LNG storage tank, from supercharging vaporizer, vaporizer, marine main engine, supercharging liquid inlet pipe, liquid discharge pipe and supercharging muffler, described LNG storage tank comprises inner canister and outer tank, described is connected with LNG storage tank by supercharging liquid inlet pipe one end from supercharging vaporizer, the other end is connected with supercharging muffler, described is provided with boost pressure regulation valve and pressurized machine liquid feed valve successively on the supercharging liquid inlet pipe between supercharging vaporizer and LNG storage tank, described vaporizer is connected with LNG storage tank by liquid discharge pipe one end, the other end is connected with marine main engine, liquid discharge pipe between described vaporizer and LNG storage tank is provided with liquid valve and liquid emission valve successively, it is inner that LNG storage tank is inserted in described supercharging muffler one end, the other end is connected with liquid discharge pipe, described supercharging muffler is provided with supercharging return-air valve successively, decompression pressure regulator valve and modulating valve.
Above-mentioned a kind of economical fuel supply device being applicable to small-sized LNG powered ship, wherein, described supercharging liquid inlet pipe, liquid discharge pipe and supercharging muffler are all provided with Piping Safety Valves, and described Piping Safety Valves is connected with flame screen.
Above-mentioned a kind of economical fuel supply device being applicable to small-sized LNG powered ship, wherein, the model of described marine main engine is Weihe River bavin WP10c280ng.
The beneficial effect of this programme:
A kind of economical fuel supply device being applicable to small-sized LNG powered ship provided by the invention, design science rationally, be easy to realize, convenient operation, LNG combustion gas by supercharging muffler successively by supercharging return-air valve, decompression pressure regulator valve and modulating valve enter in liquid discharge pipe, by liquid discharge pipe successively through liquid emission valve, liquid valve and vaporizer pass to marine main engine, and LNG combustion gas directly enters marine main engine burning, thus reaches the effect of saving gas, when LNG storage tank is in liquid liquid discharging valve discharge opeing process, when tank inner pressure is lower than supercharging pressure regulator valve setup pressure value, liquid is flowed out by supercharging liquid inlet pipe, through supercharging liquid feed valve, supercharging pressure regulator valve enters in supercharging vaporizer, by after the heating of supercharging vaporizer, the gas produced is back in LNG storage tank, reach from pressurization, if when pressure exceedes the force value of pressure reducing regulator setting, decompression pressure regulator valve is opened automatically, liquid valve is made preferentially to use gas, reach the effect of saving, improve combustion gas utilization rate in LNG gas tank, avoid causing the meaningless discharge of LNG combustion gas because tank body pressure raises, produce waste resource, affect the phenomenon of environment.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention.
Embodiment
As shown in the figure, a kind of economical fuel supply device being applicable to small-sized LNG powered ship, comprise flame screen 1, LNG storage tank 2, from supercharging vaporizer 3, vaporizer 4, marine main engine 5, supercharging liquid inlet pipe 6, liquid discharge pipe 7 and supercharging muffler 8, described LNG storage tank 2 comprises inner canister 21 and outer tank 22, described is connected with LNG storage tank 2 by supercharging liquid inlet pipe 6 one end from supercharging vaporizer 3, the other end is connected with supercharging muffler 8, described is provided with boost pressure regulation valve 9 and pressurized machine liquid feed valve 10 successively on the supercharging liquid inlet pipe 6 between supercharging vaporizer 3 and LNG storage tank 2, described vaporizer 4 is connected with LNG storage tank 2 by liquid discharge pipe 7 one end, the other end is connected with marine main engine 5, liquid discharge pipe 7 between described vaporizer 4 and LNG storage tank 2 is provided with successively liquid valve 11 and liquid emission valve 12, it is inner that LNG storage tank 2 is inserted in described supercharging muffler 8 one end, the other end is connected with liquid discharge pipe 7, described supercharging muffler 8 is provided with supercharging return-air valve 13 successively, decompression pressure regulator valve 14 and modulating valve 15, described supercharging liquid inlet pipe 6, liquid discharge pipe 7 and supercharging muffler 8 are all provided with Piping Safety Valves 16, described Piping Safety Valves 16 is connected with flame screen 1.
A kind of economical fuel supply device being applicable to small-sized LNG powered ship provided by the invention, design science rationally, be easy to realize, convenient operation, LNG combustion gas by supercharging muffler 8 successively by supercharging return-air valve 13, decompression pressure regulator valve 14 enters in liquid discharge pipe 7 with modulating valve 15, by liquid discharge pipe 7 successively through liquid emission valve 12, liquid valve 11 and vaporizer 4 pass to marine main engine 5, LNG combustion gas and directly enter marine main engine 5 and burn, thus reach the effect of saving gas, when LNG storage tank 2 is in liquid liquid discharging valve discharge opeing process, when tank inner pressure is lower than supercharging pressure regulator valve setup pressure value, liquid is flowed out by supercharging liquid inlet pipe 6, through supercharging liquid feed valve, supercharging pressure regulator valve enters in supercharging vaporizer 3, after heating from supercharging vaporizer 3, the gas produced is back in LNG storage tank, reach from pressurization, if when pressure exceedes the force value of pressure reducing regulator setting, decompression pressure regulator valve 14 is opened automatically, make the preferential gas of liquid valve 11, reach the effect of saving, improve combustion gas utilization rate in LNG gas tank, avoid causing the meaningless discharge of LNG combustion gas because tank body pressure raises, produce waste resource, affect the phenomenon of environment.
Be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (3)
1. one kind is applicable to the economical fuel supply device of small-sized LNG powered ship, comprise flame screen, LNG storage tank, from supercharging vaporizer, vaporizer, marine main engine, supercharging liquid inlet pipe, liquid discharge pipe and supercharging muffler, it is characterized by, described LNG storage tank comprises inner canister and outer tank, described is connected with LNG storage tank by supercharging liquid inlet pipe one end from supercharging vaporizer, the other end is connected with supercharging muffler, described is provided with boost pressure regulation valve and pressurized machine liquid feed valve successively on the supercharging liquid inlet pipe between supercharging vaporizer and LNG storage tank, described vaporizer is connected with LNG storage tank by liquid discharge pipe one end, the other end is connected with marine main engine, liquid discharge pipe between described vaporizer and LNG storage tank is provided with liquid valve and liquid emission valve successively, it is inner that LNG storage tank is inserted in described supercharging muffler one end, the other end is connected with liquid discharge pipe, described supercharging muffler is provided with supercharging return-air valve successively, decompression pressure regulator valve and modulating valve.
2. a kind of economical fuel supply device being applicable to small-sized LNG powered ship as claimed in claim 1, it is characterized by, described supercharging liquid inlet pipe, liquid discharge pipe and supercharging muffler are all provided with Piping Safety Valves, and described Piping Safety Valves is connected with flame screen.
3. a kind of economical fuel supply device being applicable to small-sized LNG powered ship as claimed in claim 1, it is characterized by, the model of described marine main engine is Weihe River bavin WP10c280ng.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824035.7A CN104456066A (en) | 2014-12-26 | 2014-12-26 | Economic type fuel supply device applicable to small-size LNG power ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824035.7A CN104456066A (en) | 2014-12-26 | 2014-12-26 | Economic type fuel supply device applicable to small-size LNG power ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104456066A true CN104456066A (en) | 2015-03-25 |
Family
ID=52902571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410824035.7A Pending CN104456066A (en) | 2014-12-26 | 2014-12-26 | Economic type fuel supply device applicable to small-size LNG power ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104456066A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506126A (en) * | 2018-11-30 | 2019-03-22 | 上海海威斯特保温工程有限公司 | A kind of re-liquefied fuel dispensing system of small-sized LNG fuel ship BOG |
| CN114109657A (en) * | 2021-11-12 | 2022-03-01 | 中国船舶重工集团公司第七一一研究所 | Self-pressurizing gas supply system and method |
| WO2023011282A1 (en) * | 2021-08-03 | 2023-02-09 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Pressure control system of c-shaped liquefied gas tank |
-
2014
- 2014-12-26 CN CN201410824035.7A patent/CN104456066A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506126A (en) * | 2018-11-30 | 2019-03-22 | 上海海威斯特保温工程有限公司 | A kind of re-liquefied fuel dispensing system of small-sized LNG fuel ship BOG |
| WO2023011282A1 (en) * | 2021-08-03 | 2023-02-09 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Pressure control system of c-shaped liquefied gas tank |
| CN114109657A (en) * | 2021-11-12 | 2022-03-01 | 中国船舶重工集团公司第七一一研究所 | Self-pressurizing gas supply system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109185693A (en) | The natural gas high-low pressure integrated gas supply system of large-scale double fuel Power Vessel | |
| CN104456066A (en) | Economic type fuel supply device applicable to small-size LNG power ship | |
| CN104791142A (en) | Fuel supply system and method for marine engine | |
| CN202431377U (en) | Diesel oil/natural gas double-fuel supply system | |
| CN204060975U (en) | A kind of high voltage/low voltage fuel gas supply system of Ship Power Equipment | |
| CN201074561Y (en) | Heavy oil heating device for watercraft internal combustion engine | |
| CN204437682U (en) | A kind of economical fuel supply device being applicable to small-sized LNG powered ship | |
| CN203567920U (en) | Duel-fuel ship power system device for ships | |
| CN103615656A (en) | Natural gas supplying device | |
| CN204062467U (en) | A kind of LNG filling landing stage NG Liquefaction cycle system | |
| CN206346844U (en) | LNG composite air supplies system peculiar to vessel | |
| CN203549885U (en) | Recycling device for pressure swing adsorption desorption gas and surplus hydrogen | |
| CN203810038U (en) | Self-balancing re-liquefying system | |
| CN103935497A (en) | Movable gas adding ship | |
| CN203889042U (en) | Mobile gas supply ship | |
| CN204572248U (en) | A kind of marine engine fuel supplying device | |
| CN104843164A (en) | Environment-friendly fuel storage device of LNG power driving vessel | |
| CN202002161U (en) | Household alcohol oil stove | |
| CN102116496B (en) | Household alcohol-oil stove | |
| CN203404607U (en) | Multifunctional valve box | |
| CN206831502U (en) | A kind of energy-efficient fire pot device | |
| CN205424411U (en) | LNG air feed voltage regulation control apparatus | |
| CN205137049U (en) | Novel on -vehicle gas cylinder of LNG | |
| CN204568044U (en) | A kind of fuel storage device of environment-friendly type LNG powered ship | |
| CN202811055U (en) | Marine main engine waste gas processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |