CN105705414A - System and method for preventing liquid cargo in ship from evaporating - Google Patents

System and method for preventing liquid cargo in ship from evaporating Download PDF

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Publication number
CN105705414A
CN105705414A CN201480060485.1A CN201480060485A CN105705414A CN 105705414 A CN105705414 A CN 105705414A CN 201480060485 A CN201480060485 A CN 201480060485A CN 105705414 A CN105705414 A CN 105705414A
Authority
CN
China
Prior art keywords
liquid goods
pipe
ship
control component
storage tank
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
Application number
CN201480060485.1A
Other languages
Chinese (zh)
Inventor
金洛贤
文荣植
崔东圭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanwha Ocean Co Ltd
Original Assignee
Daewoo Shipbuilding and Marine Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daewoo Shipbuilding and Marine Engineering Co Ltd filed Critical Daewoo Shipbuilding and Marine Engineering Co Ltd
Publication of CN105705414A publication Critical patent/CN105705414A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/48—Arrangements of indicating or measuring devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
    • F17C2225/042—Localisation of the filling point
    • F17C2225/046—Localisation of the filling point in the liquid
    • F17C2225/047—Localisation of the filling point in the liquid with a dip tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0491—Parameters measured at or inside the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0636—Flow or movement of content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/056—Improving fluid characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/061—Fluid distribution for supply of supplying vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

Disclosed are a system and a method for preventing liquid cargo in a ship from evaporating, which can prevent or reduce generation of evaporated gas when liquid cargo such as LNG, LPG, crude oil, etc., is loaded in a storage tank in a ship, by adjusting the pressure inside a load pipe when the liquid cargo is loaded. The system for preventing liquid cargo in a ship from evaporating, which prevents evaporated gas of the liquid cargo from being generated when the liquid cargo is loaded in the storage tank capable of storing liquid cargo, comprises: a pressure control means installed in a pipe for loading the liquid cargo in the storage tank; a pressure transmitter which is installed on the upper stream side in the pipe above the pressure control means, measures the inner pressure of the pipe, controls an opening degree of the pressure control means on the basis of the measured value; and a bypass pipe which branches off from the pipe such that the liquid cargo is loaded in the storage tank by bypassing the pressure control means.

Description

For the system and method preventing the liquid goods in ship from evaporating
Technical field
The present invention relates to a kind of system and method for evaporation for reducing or prevent liquid goods, and or rather, relating to a kind of system and method for preventing the liquid goods in ship from evaporating, it can reduce by adjusting the intrinsic pressure of loading pipe when being loaded in the storage tank in ship by the such as liquid goods such as LNG, LPG and crude oil or prevent the generation of boil-off gas。
Background technology
Between ship, freighter is classified according to cargo type。Example for the freighter of carry fluids goods comprises: be configured to the crude oil tanker (Crudeoiltanker) of delivery crude oil；It is configured to the product carrier (Productcarrier) of delivery petroleum product；And it is configured to the liquefied gas ship of liquid gas and carry liquefied gas, and the example of described liquefied gas ship comprises LNG ship (Liquefiednaturalgascarrier, LNG carrier), LPG ship (Liquefiedpetroleumgascarrier, liquified gas carries) etc.。It addition, the ship for delivering or store liquid goods comprises LNGFPSO, LNGFSRU, LNGFSU, LNG fuel ship (bunkeringvessel), chemical tanker (chemicaltanker), Liquefied Ethylene Carriers (ethylenecarrier) etc.。
Conventionally, for instance the liquid goods of LNG, LPG and crude oil etc. is by supplying at storage tank (Cargotank) the top feed pipe of less horizontal extension and the loading pipe that downwardly extends towards the bottom of storage tank from feed pipe and be loaded into storage tank。
But, it has a problem in that: during the loading of liquid goods, due to the water-head in pipeline, therefore in the intrinsic pressure vapour pressure getting lower than liquid goods of the Vertical Square of storage tank upwardly extending loading pipe upper end, thus cause evaporation or the gasification of a large amount of liquid goods。
Conventionally, during the loading of liquid goods, boil-off gas produced by the evaporation of liquid goods is sent back to liquid goods source (such as, land LNG or oil equipment, fuel ship (Bunkeringvessel), top side LNG production facility etc.) or it is discharged in air, rather than be loaded in storage tank。It is discharged into the boil-off gas in air and can cause environmental pollution, and the boil-off gas sending back liquid goods source needs extra reprocessing cost and facility。
In order to solve these problems, inventor has pointed out a kind of method, and Stress control component wherein provides the lower end of the upwardly extending loading pipe of the Vertical Square at storage tank；Measure and load the intrinsic pressure of pipe upper end；And adjust the Stress control component level with the intrinsic pressure vapour pressure being maintained above liquid goods by loading pipe upper end based on the pressure measured。10-1012643 Korean Patent discloses the method。
Summary of the invention
Technical problem
But, the inventor have found that, when according to the method that inventors suggest that by providing to the Stress control component loading pipe lower end that the pressure loaded in pipe upper end is maintained above the level of vapour pressure of liquid goods, due to the differential pressure produced by Stress control component, even if therefore also can than expection cost more time loading liquid goods when fully opening Stress control component。
It addition, the inventor have found that, provided that to load pipe lower end Stress control component inoperable or cause load pipe close due to fault, then serious problem can be caused。
The present invention has imagined solution problems in the art, and the present invention provides a kind of system and method for preventing the liquid goods in ship from evaporating, in the process, except Stress control component, bypass pipe and bypass valve are provided the lower end of the upwardly extending loading pipe of the Vertical Square at storage tank, whereby when meeting the requirement of level of the vapour pressure that the pressure loaded in pipe upper end is maintained above liquid goods, bypass pipe can be passed through and load two loading liquid goods of pipe to increase the rate of loading, and bypass pipe loading liquid goods can be passed through when Stress control component breaks down。
Technical solution
According to an aspect of the present invention, a kind of system for preventing the liquid goods in ship from evaporating is provided, it prevents the generation boil-off gas when being loaded in the storage tank that can store liquid goods by liquid goods, described system comprises: Stress control component, and it provides to being configured to the pipeline that is loaded in storage tank by liquid goods；And sensing unit, it is placed away from Stress control component；Wherein control the opening degree of Stress control component based on the information arrived by sensing unit senses, with the level by the intrinsic pressure vapour pressure being maintained above liquid goods of pipeline。
Described system can comprise the bypass pipe from tube furcation further so that liquid goods can be loaded into storage tank after walking around Stress control component。
The diameter of bypass pipe can be less from the diameter of the pipeline of its bifurcated than bypass pipe。
Bypass pipe can equipped with the bypass valve controlling the liquid goods flowing by bypass pipe。
Even if when when fully opening Stress control component and pressure in pipeline can also be maintained above the level of vapour pressure of liquid goods, can opening bypass valve so that liquid goods can pass through bypass pipe and two, pipeline to load, when loading liquid goods, the water level of the liquid goods in storage tank thus raises。
Sensing unit can be the pressure transmitter providing pipeline at the upstream side of Stress control component, for measuring pressure in pipeline and based on the opening degree measuring the value arrived and controlling Stress control component。
Sensing unit can be supplied to the level measurement device of storage tank, for measuring the water level of the liquid goods in storage tank and based on the opening degree measuring the value control Stress control component arrived。
Pipeline can comprise: feed pipe, and it extends above at storage tank；And loading pipe, it downwardly extends from feed pipe towards the bottom of storage tank, and Stress control component can provide the low portion loading pipe。
Pipeline can comprise the distribution pipe horizontal-extending from the lower end loading pipe further。
Stress control component can be valve or the hydraulic turbine。
According to another aspect of the present invention, a kind of method for preventing the liquid goods in ship from evaporating is provided, it prevents the generation boil-off gas when being loaded in the storage tank that can store liquid goods by liquid goods, described method includes: based on away from provide Stress control component position position measurement to information control the opening degree of Stress control component, wherein Stress control component provides the pipeline being configured to be loaded in storage tank by liquid goods, so that the pressure in pipeline to be maintained above the level of the vapour pressure of liquid goods。
Bypass pipe from tube furcation can be provided and open and the bypass valve closing bypass pipe, and wherein after opening bypass valve, liquid goods can be loaded in storage tank by bypass pipe and be not passed through Stress control component, be loaded in storage tank by pipeline simultaneously。
Even if when the pressure in fully opening Stress control element tunnel can also be maintained above the level of the vapour pressure of liquid goods, can opening bypass valve so that liquid goods can pass through bypass pipe and two, pipeline to load, when loading liquid goods, the water level of the liquid goods in storage tank thus raises。
When Stress control component breaks down, can pass through to open bypass valve via bypass pipe loading liquid goods incessantly, and the diameter of described bypass pipe can less than the diameter of pipeline so that the pressure in pipeline may remain in the level of the vapour pressure higher than liquid goods。
Described information can be by provide at the upstream side of Stress control component the pressure transmitter measurement of pipeline to pipeline in pressure。
Described information can be the water level of the liquid goods in the storage tank measured by the level measurement device providing storage tank。
Advantageous effects
The present invention provides a kind of system and method for preventing the liquid goods in ship from evaporating, and wherein except Stress control component, bypass pipe and bypass valve provides the lower end of the upwardly extending loading pipe of the Vertical Square at storage tank。
According to the present invention for preventing in the system and method that the liquid goods in ship evaporates, load the pressure in pipe, especially the level that the pressure in pipe upper end could adjust and be maintained above the vapour pressure of liquid goods by the offer Stress control component to loading pipe is loaded, during the loading of liquid goods, thus reduce or prevent the generation of boil-off gas, allow to efficiently perform the loading of liquid goods simultaneously。
Additionally, according to the present invention for preventing in the system and method that the liquid goods in ship evaporates, bypass pipe can be passed through and load two loading liquid goods of pipe, to prevent the rate of loading from reducing when meeting the requirement of level of the vapour pressure that the pressure loaded in pipe upper end is maintained above liquid goods。
Actually, when the flow velocity of liquid goods is measured in the requirement being used as Stress control component according to the valve with anti-cavitation (Anti-cavitation) ability, the pipe that loads being configured to loading liquid goods has the length of 28m, and load the level that the pressure in pipe is maintained above the vapour pressure of liquid goods, when only opening loading pipe, the flow velocity of liquid goods is measured as 7,838m3/ h, and when opening loading pipe and bypass pipe two, the flow velocity of liquid goods is measured as 9,338m3/ h。It can therefore be seen that flow velocity adds about 20% when using bypass pipe and loading pipe two。
Herein, flow velocity increases the rate of loading representing liquid goods and faster and thus reduces the time needed for loading liquid goods。For example, the minimizing of loading time makes can to reduce according to the berthing charge that the ship time at anchor pays, and thus reduces running cost。
Additionally, according to the present invention for preventing in the system and method that the liquid goods in ship evaporates, even if when Stress control component breaks down suddenly, it is also possible to be consecutively carried out the loading of liquid goods by bypass pipe。
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the system for preventing liquid goods from evaporating of the first exemplary embodiment according to the present invention。
Fig. 2 is the schematic diagram of the system for preventing liquid goods from evaporating of the second exemplary embodiment according to the present invention。
Fig. 3 is the schematic diagram of the system for preventing liquid goods from evaporating of the 3rd exemplary embodiment according to the present invention。
Fig. 4 is the schematic diagram of the system for preventing liquid goods from evaporating of the 4th exemplary embodiment according to the present invention。
Detailed description of the invention
The exemplary embodiment of the present invention is described in detail hereinafter with reference to accompanying drawing。
According to the present invention for preventing the system that the liquid goods in ship evaporate to may be used for any ship, as long as ship is provided with in the storage tank storing liquid goods。The storage tank adopting the system for preventing liquid goods from evaporating according to the present invention is not necessarily limited to the set storage tank being mounted with liquid goods, and must be considered as the storage tank (that is, fuel tank) also comprising delivery as the oil of engine fuel, liquefied gas etc.。
In other words, according to the present invention for preventing the system that liquid goods evaporate to may be used for carry fluids goods as goods or use liquid goods as the ship of all kinds of fuel, that is, crude oil tanker, product carrier, LNG ship, LPG ship, PC ship, liquefied carbon dioxide ship, LNGRV, oil (Oil) FPSO, LNGFPSO, LNGFSRU, LNGFSU, LNG fuel ship (bunkeringvessel), chemical tanker (chemicaltanker), Liquefied Ethylene Carriers (ethylenecarrier) etc.。Herein, although FPSO, FSRU etc. are classified as offshore set-up, but ship useful herein must be regarded as comprising the ship swum on marine various offshore set-ups and common meaning。
It addition, according in the onshore storage tanks and the marine storage tank that store the liquefied gas of such as LNG, LPG, liquefaction nitrogen and liquefied carbon dioxide or the oil of such as crude oil and refined oil for preventing the system that liquid goods evaporates may be used for of the present invention。
Fig. 1 is the schematic diagram of the system for preventing liquid goods from evaporating of the first exemplary embodiment according to the present invention。With reference to Fig. 1, by storage tank (1) the top feed pipe (11) of less horizontal extension, the loading pipe (12) downwardly extended towards the bottom of storage tank (1) from feed pipe (11) and connect with the lower end loading pipe (12) and less horizontal extension distribution pipe (13) and by the liquid goods source of supply supply from such as land-based installation and FPSO etc. be loaded into storage tank (1)。
According to the first exemplary embodiment for preventing the system that liquid goods evaporate from comprising Stress control component (22), it provides to and loads the low portion managing (12)；Pressure transmitter (21) (Pressuretransmitter), it is measured the pressure in the upper end loading pipe (12) as sensing unit and controls Stress control component (22) based on measuring the value arrived；Bypass pipe (14), it is from loading pipe (12) bifurcated to walk around Stress control component (22)；And bypass valve (24), it provides bypass pipe (14) to control the liquid goods flowing by bypass pipe (14)。
As sensing unit, pressure transmitter (21) is placed away from Stress control component (22)。
Distribution pipe (13) equipped with distributing valve (23) and can provide at least one distributing valve (23) to each storage tank (1)。When liquid goods is at room temperature stored in crude oil storage tank, distribution pipe (13) can extend through bulkhead (3)。In this embodiment, single distribution pipe (13) may be coupled to multiple storage tank。
Stress control component (22) is preferably disposed in the lower end loading pipe (12) so that the pressure loaded in pipe (12) to be maintained above the level of the vapour pressure (Vaporpressure) of liquid goods in response to the signal of telecommunication from pressure transmitter (21)。In other words, Stress control component (22) regulates opening and Guan Bi degree of the lower ending opening of loading pipe (12) based on the pressure loaded in pipe, thus making the pressure in loading pipe, especially the pressure loaded in pipe upper end can be maintained above the level of the vapour pressure of liquid goods。Therefore, Stress control component (22) is possible to prevent to be formed vacuum in the upper end (part A) loading pipe (12), and forming vacuum is the main cause producing boil-off gas during the loading of liquid goods。
According to this exemplary embodiment, Stress control component (22) regulates opening and Guan Bi degree of the lower ending opening of loading pipe in response to the signal from pressure transmitter (21), thus adjust the pressure loaded in pipe (12), especially load the pressure in the upper part A of pipe (12)。Control valve (Controlvalve), the hydraulic turbine (Hydraulicturbine) etc. and can serve as Stress control component (22)。
As Stress control component, controlling valve can be the valve operated by hydraulic pressure or Pneumatic pressure when being immersed in below liquid goods。Control to operate under full opening of state when valve is configured to signal fault or hydraulic pressure or Pneumatic pressure fault, under normal operating condition there is anti-cavitation (Anti-cavitation) ability and preferably there is explosion-proof characteristic。
In theory, valve only allowable pressure drop by offer isenthalpic expansion, the hydraulic turbine as Stress control component can provide isenthalpic expansion by producing output work in theory, thus allowing to reduce enthalpy and the pressure drop of the liquid goods of such as LNG, thus obtain liquid goods in downstream with relatively lower temp compared with valve, therefore can be more effective。Have been used for various field as this kind of hydraulic turbine of Stress control component (22), and can comprise and generally depend on design requirement and for any suitable hydraulic turbine in art。
According to this exemplary embodiment, by in the simple-arranged addition system of such as valve or the hydraulic turbine, can effectively suppress the unnecessary generation of boil-off gas whereby when not needing high equipment cost during the loading of liquid goods, be achieved in effectively being loaded into by liquid goods in storage tank (10)。
According to this exemplary embodiment, upstream side at Stress control component (22) walks around Stress control component (22) from the bypass pipe (14) loading pipe (12) bifurcated, it is connected to distribution pipe (13), make the liquid goods loaded by feed pipe (11) and loading pipe (12) that distribution pipe (13) can be direct supplied to, without traverse Stress control component (22)。
When loading pipe (12) and closing owing to Stress control component (22) breaks down, it is possible to perform the loading of liquid goods incessantly by opening the bypass valve (24) providing bypass pipe (14)。Herein, owing to throwing open of bypass valve (24) may result in the pressure reduction loaded in pipe (12) upper end and produce vacuum in pipe (12) loading, therefore the diameter of bypass pipe (14) need to less than loading the diameter managing (12)。
Additionally, when in liquid goods is loaded into storage tank (1), the water level of the liquid goods in storage tank raises, bypass valve (24) can be opened so that liquid goods can pass through bypass pipe (14) and load pipe (12) two to load。Herein, no matter the opening of bypass valve (24) how, when the pressure loaded in pipe (12) upper end is maintained above the level of vapour pressure of liquid goods, just can perform opening of bypass valve (24)。According to this exemplary embodiment, even if when fully opening Stress control component (22) during the loading of liquid goods, the problem that can also solve the differential pressure owing to being caused by the Stress control component using bypass pipe (14) and cause the rate of loading to reduce, that has thus reduced liquid goods loads the required time。
It follows that be used for preventing the operation of the system of the boil-off gas of the liquid goods in ship by describing according to the first exemplary embodiment。
When being loaded in storage tank (1) by the liquid goods of such as LNG, LPG and crude oil etc. by feed pipe (11), loading pipe (12) and distribution pipe (13), pressure transmitter (21) measures the pressure in loading pipe (12) upper end。Open and close the opening degree of Stress control component (22) or adjustment Stress control component to regulate the rate of loading of liquid goods based on the force value measured by pressure transmitter (21), thus the pressure loaded in pipe (12) upper end is maintained above the level of the vapour pressure of liquid goods。
According to this exemplary embodiment, when during the loading of liquid goods, Stress control component (22) breaks down by accident, it is possible to by opening the bypass valve (24) providing bypass pipe (14) via bypass pipe (14) loading liquid goods incessantly。Further, since the diameter of bypass pipe (14) is less than the diameter loading pipe (12), the risk forming cavity in loading pipe upper end therefore can be reduced。
On the other hand, even if if when the water level of the liquid goods fully opened when being typically implemented the loading of liquid goods in Stress control component (22) and storage tank (1) thus raises, load the pressure in pipe (12) upper end and can be maintained above the vapour pressure of liquid goods, then open bypass valve (24), make liquid goods can pass through bypass pipe (14) and load (12) two loadings of pipe, thus offset the pressure reduction caused by Stress control component (22)。Accordingly it is possible to prevent the rate of loading reduces due to pressure reduction, consequently allow for completing as early as possible the loading of liquid goods。
Therefore, the adverse effect to the rate of loading and the density of cargo can be minimized during the loading of liquid goods, reduce the generation of boil-off gas (that is, flash gas (Flashgas) or VOC (VOC)) simultaneously。
Fig. 2 is the schematic diagram of the system for preventing liquid goods from evaporating of the second exemplary embodiment according to the present invention。With reference to Fig. 2, by storage tank (1) the top feed pipe (11) of less horizontal extension, the loading pipe (12) downwardly extended towards the bottom of storage tank (1) from feed pipe (11) and connect with the lower end loading pipe (12) and less horizontal extension distribution pipe (13) and by the liquid goods source of supply supply from such as land-based installation and FPSO etc. be loaded into storage tank (1)。
According to the second exemplary embodiment for preventing the system that liquid goods evaporate from comprising: Stress control component (22), it provides to and loads the low portion managing (12)；Level measurement device (31), it provides storage tank (1) as sensing unit and measures the water level of liquid goods in storage tank (1) to control Stress control component (22) based on measuring the value arrived；Bypass pipe (14), it is from loading pipe (12) bifurcated to walk around Stress control component (22)；And bypass valve (24), it provides bypass pipe (14) to control the liquid goods flowing by bypass pipe (14)。
As sensing unit, level measurement device (31) is placed away from Stress control component (22), and such as may be mounted at the upper end of storage tank (1)。
Except except level measurement device (31) as the water level of the liquid goods in sensing unit measurement storage tank (1), according to the second exemplary embodiment for preventing substantially the same for the system that prevents liquid goods from evaporating with according to the first exemplary embodiment of system that liquid goods evaporate, therefore identical with the first exemplary embodiment assembly is represented by same reference numerals and omits it and is described in detail。
Fig. 3 is the schematic diagram of the system for preventing liquid goods from evaporating of the 3rd exemplary embodiment according to the present invention。With reference to Fig. 3, by and being loaded into the liquid goods source of supply supply from such as land-based installation and FPSO etc. storage tank (1) at the feed pipe (11) of storage tank (1) the less horizontal extension in top and the loading pipe (12) that downwardly extends towards the bottom of storage tank (1) from feed pipe (11)。
According to the 3rd exemplary embodiment for preventing the system that liquid goods evaporate from comprising: Stress control component (22), it provides to and loads the low portion managing (12)；Pressure transmitter (21) (Pressuretransmitter), it is measured, as sensing unit, the pressure loaded in pipe (12) upper end and controls Stress control component (22) based on measuring the value arrived；Bypass pipe (14), it is from loading pipe (12) bifurcated to walk around Stress control component (22)；And bypass valve (24), it provides bypass pipe (14) to control the liquid goods flowing by bypass pipe (14)。
As sensing unit, pressure transmitter (21) is placed away from Stress control component (22)。
One can be provided to load pipe (12) to each storage tank (1)。Generally, the lower end loading pipe (12) is positioned at storage tank (1) near-bottom, and is not affixed to bottom。
Stress control component (22) is preferably disposed in the lower end loading pipe (12) so that the pressure loaded in pipe (12) to be maintained above the level of the vapour pressure (Vaporpressure) of liquid goods in response to the signal of telecommunication from pressure transmitter (21)。In other words, Stress control component (22) regulates opening and Guan Bi degree of the lower ending opening of loading pipe (12) based on the pressure loaded in pipe, thus making the pressure in loading pipe, especially the pressure loaded in pipe upper end can be maintained above the level of the vapour pressure of liquid goods。Therefore, Stress control component (22) is possible to prevent to be formed vacuum in the upper end (part A) loading pipe (12), and forming vacuum is the main cause producing boil-off gas during the loading of liquid goods。
According to this exemplary embodiment, Stress control component (22) regulates opening and Guan Bi degree of the lower ending opening of loading pipe in response to the signal from pressure transmitter (21), thus adjust the pressure loaded in pipe (12), especially load the pressure in pipe (12) upper part A。Control valve (Controlvalve), the hydraulic turbine (Hydraulicturbine) etc. and can serve as Stress control component (22)。
As Stress control component, controlling valve can be the valve that can pass through hydraulic pressure or Pneumatic pressure operation when being immersed in below liquid goods。Control to operate under full opening of state when valve is configured to signal fault or hydraulic pressure or Pneumatic pressure fault, under normal operating condition there is anti-cavitation (Anti-cavitation) ability and preferably there is explosion-proof characteristic。
In theory, valve is by providing isenthalpic expansion and only allowable pressure drop, and the hydraulic turbine being used as Stress control component can provide isenthalpic expansion by producing output work in theory, thus allowing to reduce enthalpy and the pressure drop of the liquid goods of such as LNG, thus obtain liquid goods and thus can be more effective in downstream with relatively lower temp compared with valve。Have been used for various field as this kind of hydraulic turbine of Stress control component (22) and can comprise and generally depend on design condition and for any suitable hydraulic turbine in art。
According to this exemplary embodiment, by in the simple-arranged addition system of such as valve or the hydraulic turbine, whereby can when not needing high equipment cost, during the loading of liquid goods, effectively suppress the unnecessary generation of boil-off gas, be achieved in effectively being loaded into by liquid goods in storage tank (10)。
According to this exemplary embodiment, bypass pipe (14) is from loading pipe (12) bifurcated, to walk around Stress control component (22), upstream side at Stress control component (22) manages (12) bifurcated from loading, and it is substantially parallel to loading pipe (12) extension subsequently, make the liquid goods loaded by feed pipe (11) and loading pipe (12) that bypass pipe (14) can be passed through and direct supply to storage tank (1), and be not passed through Stress control component (22)。
When loading pipe (12) and closing owing to Stress control component (22) breaks down, it is possible to perform the loading of liquid goods incessantly by opening the bypass valve (24) providing bypass pipe (14)。Herein, owing to throwing open of bypass valve (24) may result in the pressure reduction loaded in pipe (12) upper end, thus producing vacuum in loading pipe (12), therefore the diameter of bypass pipe (14) need to less than the diameter loading pipe (12)。
Additionally, when the water level of the liquid goods in liquid goods is loaded into storage tank (1) and in storage tank raises, bypass valve (24) can be opened so that liquid goods can pass through bypass pipe (14) and load pipe (12) two to load。Herein, no matter, the opening of bypass valve (24) how, when the pressure loaded in pipe (12) upper end is maintained above the level of vapour pressure of liquid goods, just can perform opening of bypass valve (24)。According to this exemplary embodiment, even if when fully opening Stress control component (22) during the loading of liquid goods, the problem that can also solve the differential pressure owing to being caused by the Stress control component using bypass pipe (14) and cause the rate of loading to reduce, that has thus reduced liquid goods loads the required time。
It follows that be used for preventing the operation of the system of the boil-off gas of the liquid goods in ship by describing according to the 3rd exemplary embodiment。
When being loaded in storage tank (1) by the such as liquid goods such as LNG, LPG and crude oil by feed pipe (11) and loading pipe (12), pressure transmitter (21) measures the pressure loaded in pipe (12) upper end。Open the opening degree with clossing pressure control member (22) or adjustment Stress control component to regulate the rate of loading of liquid goods based on the force value measured by pressure transmitter (21), thus the pressure loaded in pipe (12) upper end is maintained above the level of the vapour pressure of liquid goods。
According to this exemplary embodiment, when during the loading of liquid goods, Stress control component (22) breaks down by accident, it is possible to by opening the bypass valve (24) providing bypass pipe (14) via bypass pipe (14) loading liquid goods incessantly。Further, since the diameter of bypass pipe (14) is less than the diameter loading pipe (12), the risk forming cavity in loading pipe upper end therefore can be reduced。
On the other hand, even if if when the water level of the liquid goods fully opened when being typically implemented the loading of liquid goods in Stress control component (22) and storage tank (1) thus raises, load the pressure in pipe (12) upper end and can be maintained above the vapour pressure of liquid goods, then open bypass valve (24), make liquid goods can pass through bypass pipe (14) and load (12) two loadings of pipe, thus offset the pressure reduction caused by Stress control component (22)。Accordingly it is possible to prevent the rate of loading reduces due to pressure reduction, consequently allow for completing as early as possible the loading of liquid goods。
Therefore, the adverse effect to the rate of loading and the density of cargo can be minimized during the loading of liquid goods, reduce the generation of boil-off gas (that is, flash gas (Flashgas) or VOC (VOC)) simultaneously。
Fig. 4 is the schematic diagram of the system for preventing liquid goods from evaporating of the 4th exemplary embodiment according to the present invention。With reference to Fig. 4, by at storage tank (1) the top feed pipe (11) of less horizontal extension and the loading pipe (12) that downwardly extends towards the bottom of storage tank (1) from feed pipe (11), by the liquid goods source of supply supply from such as land-based installation and FPSO etc. be loaded into storage tank (1)。
According to the 4th exemplary embodiment for preventing the system that liquid goods evaporate from comprising: Stress control component (22), it provides to and loads the low portion managing (12)；Level measurement device (31), it is as the sensing unit providing storage tank (1), and the water level measuring the liquid goods in storage tank (1) controls Stress control component (22) with the value arrived based on measurement；Bypass pipe (14), it is from loading pipe (12) bifurcated to walk around Stress control component (22)；And bypass valve (24), it provides bypass pipe (14) to control the liquid goods flowing by bypass pipe (14)。
As sensing unit, level measurement device (31) is placed away from Stress control component (22), and such as may be mounted at the upper end of storage tank (1)。
Due to except the level measurement device (31) of water level comprising the liquid goods measured in storage tank (1) as sensing unit, according to the 4th exemplary embodiment for preventing substantially the same for the system that prevents liquid goods from evaporating with according to the 3rd exemplary embodiment of system that liquid goods evaporate, therefore identical with the 3rd exemplary embodiment assembly is represented by same reference numerals and omits it and is described in detail。
According to the present invention the system of exemplary embodiment can be revised as the upstream side being included in Stress control component (22) the independent valve (not shown) loading pipe (12) is provided, wherein said valve closes so that maintenance work in the maintenance period of Stress control component (22)。Independent valve can be manually-operated gate。
Although some exemplary embodiments have been described with reference to the drawings, however, it is understood that only by means of illustrating provide these embodiments and various amendment, change and change can be made without departing from the spirit and scope of the present invention。

Claims (16)

1. the system for preventing the liquid goods in ship from evaporating, it prevents boil-off gas when being loaded in the storage tank storing described liquid goods by described liquid goods, described for preventing the system that the liquid goods in ship evaporates from including:
Stress control component, it provides to being configured to and described liquid goods is loaded into the pipeline in described storage tank；And
Sensing unit, it is placed away from described Stress control component；
Wherein control the opening degree of described Stress control component based on the information arrived by described sensing unit senses, the pressure in described pipeline to be maintained above the level of the vapour pressure of described liquid goods。
2. the system for preventing the liquid goods in ship from evaporating according to claim 1, it farther includes:
Bypass pipe, it is from described tube furcation so that described liquid goods is walked around described Stress control component and is loaded into described storage tank。
3. the system for preventing the liquid goods in ship from evaporating according to claim 2, the diameter of wherein said bypass pipe is less from the diameter of the described pipeline of its bifurcated than described bypass pipe。
4. the system for preventing the liquid goods in ship from evaporating according to claim 2, wherein said bypass pipe is equipped with controlling the described liquid goods bypass valve by the flowing of described bypass pipe。
5. the system for preventing the liquid goods in ship from evaporating according to claim 4, even if wherein when when fully opening described Stress control component and pressure in described pipeline is maintained above the level of vapour pressure of described liquid goods, opening described bypass valve so that described liquid goods passes through described bypass pipe and two, described pipeline to load, when loading described liquid goods, the water level of the described liquid goods in described storage tank thus raises。
6. the system for preventing the liquid goods in ship from evaporating according to claim 1, wherein said sensing unit is the pressure transmitter providing described pipeline at the upstream side of described Stress control component, for measuring pressure in described pipeline and based on the opening degree measuring the value arrived and controlling described Stress control component。
7. the system for preventing the liquid goods in ship from evaporating according to claim 1, wherein said sensing unit is supplied to the level measurement device of described storage tank, for measuring the water level of the described liquid goods in described storage tank and based on the opening degree measuring the value described Stress control component of control arrived。
8. the system for preventing the liquid goods in ship from evaporating according to claim 1, wherein said pipeline includes the feed pipe extended above at described storage tank；And the loading pipe downwardly extended towards the bottom of described storage tank from described feed pipe, and wherein described Stress control component is provided the low portion of described loading pipe。
9. the system for preventing the liquid goods in ship from evaporating according to claim 8, wherein said pipeline farther includes the distribution pipe horizontal-extending from the lower end of described loading pipe。
10. the system for preventing the liquid goods in ship from evaporating according to claim 1, wherein said Stress control component is valve or the hydraulic turbine。
11. for the method preventing the liquid goods in ship from evaporating, it prevents the generation boil-off gas when being loaded in the storage tank storing described liquid goods by described liquid goods, described for preventing the method that the liquid goods in ship evaporates from including:
Based on away from provide Stress control component position position measurement to information control the opening degree of described Stress control component, so that the pressure in pipeline to be maintained above the level of the vapour pressure of described liquid goods, described Stress control component provides the described pipeline being configured to be loaded in described storage tank by described liquid goods。
12. the method for preventing the liquid goods in ship from evaporating according to claim 11, bypass pipe from described tube furcation is wherein provided and opens and the bypass valve closing described bypass pipe, and wherein after opening described bypass valve, described liquid goods is loaded into by described bypass pipe and is not passed through described Stress control component in described storage tank, is loaded in described storage tank by described pipeline simultaneously。
13. the method for preventing the liquid goods in ship from evaporating according to claim 12, even if wherein when when fully opening described Stress control component and pressure in described pipeline is maintained above the level of vapour pressure of described liquid goods, opening described bypass valve so that described liquid goods passes through described bypass pipe and two, described pipeline to load, when loading described liquid goods, the water level of the described liquid goods in described storage tank thus raises。
14. the method for preventing the liquid goods in ship from evaporating according to claim 12, wherein when described Stress control component breaks down, described liquid goods is loaded incessantly via described bypass pipe by opening described bypass valve, and the diameter of wherein said bypass pipe is less than the diameter of described pipeline so that the pressure in described pipeline is maintained above the level of the vapour pressure of described liquid goods。
15. the method for preventing the liquid goods in ship from evaporating according to claim 11, wherein said information is by the pressure in the described pipeline that the upstream side of described Stress control component provides the pressure transmitter of described pipeline to measure。
16. the method for preventing the liquid goods in ship from evaporating according to claim 11, wherein said information is the water level of the described liquid goods in the described storage tank by providing the level measurement device of described storage tank to measure。
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102608686B1 (en) * 2018-11-15 2023-12-01 한화오션 주식회사 Cargo piping system and lng loading method
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JP2022071534A (en) * 2020-10-28 2022-05-16 三菱造船株式会社 Floating body, loading method of liquefied carbon dioxide, and unloading method of liquefied carbon dioxide
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101628703A (en) * 2008-07-16 2010-01-20 大宇造船海洋株式会社 System and method for reducing volatile organic compounds for an oil carrier
KR101076269B1 (en) * 2009-10-08 2011-10-26 대우조선해양 주식회사 Apparatus for diminishing flash gas of a liquefied gas carrier
KR101246908B1 (en) * 2011-06-17 2013-03-25 삼성중공업 주식회사 VOC reducing apparatus for liquid cargo storage tank
KR101291357B1 (en) * 2011-06-22 2013-07-30 삼성중공업 주식회사 VOC reducing apparatus for liquid cargo storage tank

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO315417B1 (en) 2001-12-06 2003-09-01 Knutsen Oas Shipping As Method and arrangement of loading column

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101628703A (en) * 2008-07-16 2010-01-20 大宇造船海洋株式会社 System and method for reducing volatile organic compounds for an oil carrier
KR101076269B1 (en) * 2009-10-08 2011-10-26 대우조선해양 주식회사 Apparatus for diminishing flash gas of a liquefied gas carrier
KR101246908B1 (en) * 2011-06-17 2013-03-25 삼성중공업 주식회사 VOC reducing apparatus for liquid cargo storage tank
KR101291357B1 (en) * 2011-06-22 2013-07-30 삼성중공업 주식회사 VOC reducing apparatus for liquid cargo storage tank

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Application publication date: 20160622