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WO2015041465A1 - Dispositif et procédé pour transférer des matières inflammables dans une structure en mer - Google Patents

Dispositif et procédé pour transférer des matières inflammables dans une structure en mer Download PDF

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Publication number
WO2015041465A1
WO2015041465A1 PCT/KR2014/008660 KR2014008660W WO2015041465A1 WO 2015041465 A1 WO2015041465 A1 WO 2015041465A1 KR 2014008660 W KR2014008660 W KR 2014008660W WO 2015041465 A1 WO2015041465 A1 WO 2015041465A1
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WO
WIPO (PCT)
Prior art keywords
hydraulic motor
lubricating oil
hydraulic
combustible material
pump
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.)
Ceased
Application number
PCT/KR2014/008660
Other languages
English (en)
Korean (ko)
Inventor
이준채
장재호
김지은
이창우
김낙현
강동억
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
Priority to US14/659,484 priority Critical patent/US9745922B2/en
Priority to US14/659,544 priority patent/US9683518B2/en
Priority to US14/659,499 priority patent/US9151248B2/en
Publication of WO2015041465A1 publication Critical patent/WO2015041465A1/fr
Priority to US14/874,323 priority patent/US9751606B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • 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
    • B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/12—Feeding by means of driven pumps fluid-driven, e.g. by compressed combustion-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]

Definitions

  • the present invention relates to an apparatus and method for safely transporting combustible materials on offshore structures, and more particularly to using a hydraulic motor as a driving source for operating a compressor or pump when transporting combustible materials such as LNG on offshore structures.
  • the present invention relates to a flammable material conveying apparatus and method that can safely transport flammable materials without the risk of explosion or fire.
  • Liquefied gas such as LNG (Liquefied Natural Gas) and LPG (Liquefied Petroleum Gas)
  • LNG Liquefied Natural Gas
  • LPG Liquefied Petroleum Gas
  • the liquefied gas is transported in a gas state through a gas pipe on land or sea, or transported to a distant consumer while stored in a liquefied gas carrier in a liquefied state.
  • Liquefied gas such as LNG or LPG is obtained by cooling natural gas or petroleum gas to cryogenic temperature (approximately -163 °C in case of LNG), and its volume is greatly reduced than in gas state, so it is very suitable for long distance transportation by sea. .
  • Liquefied gas carriers such as LNG carriers
  • a storage tank that can withstand cryogenic temperatures of liquefied gas It includes).
  • vessels such as LNG Regasification Vessel, LNG Floating, Storage and Regasification Unit (FSRU), and LNG FRU (Floating and Regasification Units, LNG Floating, Production, Storage and Off-loading (FPSO), and structures such as BMPP (Barge Mounted Power Plant).
  • LNG Regasification Vessel LNG Floating, Storage and Regasification Unit (FSRU), and LNG FRU (Floating and Regasification Units, LNG Floating, Production, Storage and Off-loading (FPSO)
  • FPSO Storage and Off-loading
  • BMPP Barge Mounted Power Plant
  • LNG RV is a LNG regasification facility installed on LNG carriers capable of magnetic navigation and floating.
  • LNG FSRU is a structure that stores liquefied natural gas unloaded from LNG carriers in a storage tank in the sea far from the land, and vaporizes liquefied natural gas as needed to supply it to land demand.
  • LNG FRU has a similar function to LNG FSRU. It does not have a large storage tank, but it is a structure that receives LNG from outside and processes it.
  • LNG FPSO is a structure used to purify mined natural gas from the sea and then liquefy directly to store in a storage tank and, if necessary, to transfer LNG stored in the storage tank to an LNG carrier.
  • BMPP is a structure used to generate electricity at sea by mounting a power generation facility on a barge.
  • an offshore structure is a concept including all kinds of liquefied gas carriers such as LNG carriers, LNG RVs, and even plants such as LNG FPSO, Oil FPSO, LNG FSRU, LNG FRU, and BMPP.
  • LNG is a flammable gas
  • a zone in which flammable gas may flow is designated as a dangerous zone, and in this zone, an explosion or explosion may occur.
  • Explosion proof equipment is used to prevent fire.
  • LNG which is a clean fuel
  • LNG is a combustible material.
  • a propulsion engine or a power generation engine it is necessary to supply fuel to the engine at all times during operation of offshore structures. There is a need to secure safety.
  • the present invention is to solve the conventional problems as described above, by using a hydraulic motor that does not cause electrical spark as a drive source included in the transport device of the combustible material, the flammability of the offshore structure that can safely transport the combustible material It is an object of the present invention to provide a material conveying apparatus and method.
  • the present invention by using a hydraulic motor, the pressurizing means of the conveying device for pressing the combustible material for conveyance and the drive means for operating the pressurizing means, that is, the hydraulic motor can be installed together in the same space, the pressurizing means and It is an object of the present invention to provide an apparatus and method for transporting combustible materials of offshore structures, which are easier to align shafts and are advantageous in terms of maintenance and space utilization as compared with the case where the driving means are installed in separate spaces.
  • a combustible material transfer apparatus of the offshore structure used to transport the combustible material from one place to another in the offshore structure, by pressing the combustible material to one way Pressing means for transferring to;
  • Supply of the working fluid to the hydraulic motor it can be made by a dedicated hydraulic generator for the hydraulic motor only.
  • a hydraulic line may be installed between the dedicated hydraulic generator and the hydraulic motor to supply a working fluid to the hydraulic motor.
  • the dedicated hydraulic pressure generating device may include two hydraulic pumps in preparation for a failure.
  • the pressurizing means may be a pump or a compressor.
  • the combustible material transfer apparatus of the offshore structure according to the present invention may further include a lubricant pump for supplying lubricant to the hydraulic motor.
  • the lubricating oil pump may be installed together in the same space as the hydraulic motor.
  • the combustible material conveying apparatus of an offshore structure may further include a hydraulic motor for a lubricating oil pump for driving the lubricating oil pump.
  • the lubricating oil pump and the lubricating oil pump hydraulic motor may be installed together in the same space as the hydraulic motor.
  • Lubricating oil is supplied into the hydraulic motor through a lubricating oil supply line extending from the lubricating oil pump to the hydraulic motor, and may return to the lubricating oil pump through a lubricating oil return line extending from the hydraulic motor to the lubricating oil pump. .
  • Supply of the working fluid to the hydraulic motor and the hydraulic motor for the lubricating oil pump may be made by a dedicated hydraulic pressure generating device.
  • the dedicated hydraulic pressure generating device includes a first hydraulic pump for supplying a working fluid to the hydraulic motor, a second hydraulic pump for supplying a working fluid to the lubricating oil pump hydraulic motor, and a reservoir for storing the working fluid. It may include.
  • the working fluid stored in the reservoir is pressurized by the first hydraulic pump and then supplied to the hydraulic motor through a first supply line, returned to the reservoir via a first return line, and the second hydraulic pump. After pressurized by the second supply line is supplied to the hydraulic motor for the lubricating oil pump, it can be returned to the reservoir through the second return line.
  • the apparatus for transporting combustible materials of an offshore structure may further include a first drain line for use when discharging all working fluids in the hydraulic motor for maintenance of the hydraulic motor.
  • An apparatus for transporting a combustible material of an offshore structure includes a lubricating oil pump for supplying lubricating oil to the hydraulic motor, a lubricating oil pump hydraulic motor for driving the lubricating oil pump, and for maintenance of the lubricating oil pump hydraulic motor. It may further include a second drain line for use when discharging all the working fluid in the hydraulic motor for the lubricating oil pump.
  • the working fluid used for driving the hydraulic motor can be utilized as lubricating oil supplied for lubrication of the hydraulic motor.
  • the supply of the working fluid to the hydraulic motor and the supply of lubricating oil to the hydraulic motor may be made by a dedicated hydraulic generator.
  • the dedicated hydraulic pressure generating device may include a first hydraulic pump for supplying a working fluid to the hydraulic motor, a second hydraulic pump for supplying lubricating oil to the hydraulic motor, and a reservoir capable of storing the working fluid. .
  • the working fluid stored in the reservoir is pressurized by the first hydraulic pump and then supplied to the hydraulic motor through a first supply line to operate the hydraulic motor and return to the reservoir through a first return line.
  • the hydraulic motor may be supplied as a lubricant to the hydraulic motor through a second supply line, and returned to the reservoir through a second return line.
  • the combustible material conveying apparatus of the offshore structure according to the present invention may further include a lubricant drain line for use when discharging all the lubricant used in the hydraulic motor.
  • a method of transporting a combustible material of an offshore structure used for transporting combustible materials from one place to another in an offshore structure, the hydraulic motor being operated by the hydraulic pressure supplied from the hydraulic generator and And actuating the pressurizing means for pressurizing the combustible material through the drive shaft extending from the hydraulic motor to transfer the combustible material in one direction, wherein the hydraulic motor is installed together in the same space as the pressurizing means.
  • a combustible material transport apparatus and method for offshore structures using a hydraulic motor that is free of electrical spark generation as a drive source included in the transport device of the combustible material can be provided.
  • the pressurizing means of the conveying apparatus for pressurizing the combustible material for conveying and the driving means for operating the pressurizing means that is, the hydraulic motor in the same space Since it can be installed together, the pressurizing means and the driving means are each easier to align the shaft or the sealing of the zone than when installed in a separate space and is advantageous in terms of maintenance and space utilization.
  • the combustible material transfer apparatus and method of the present invention since the hydraulic motor used in place of the electric motor has a relatively small size compared to the electric motor, the installation space of the equipment is small and small compared to the large offshore structure Easy to apply to structures.
  • FIG. 1 is a view for explaining a combustible material transfer apparatus driven by an electric motor
  • FIG. 2 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor according to the first embodiment of the present invention
  • FIG. 3 is a view for explaining a combustible material transfer apparatus driven by a hydraulic motor according to a second embodiment of the present invention
  • FIG. 4 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor according to a third embodiment of the present invention.
  • FIG. 5 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor according to a fourth embodiment of the present invention.
  • MEGI engines are in the spotlight as next generation eco-friendly engines that can reduce pollutant emissions by 23%, carbon dioxide by 80%, and sulfur compounds by 95% compared to diesel engines of the same class.
  • Such a MEGI engine may be installed in a marine structure such as a vessel or various plants such as an LNG carrier that stores and transports LNG in a cryogenic storage tank, in which case natural gas is used as a fuel for the engine.
  • natural gas is used as a fuel for the engine.
  • a high pressure fuel gas supply pressure of about 200 to 400 bara (absolute pressure) is required for the engine.
  • the MEGI engine can also be used directly on the propellers for propulsion, for which the MEGI engine consists of a two-stroke engine rotating at low speed. That is, the MEGI engine is a low speed two-stroke high pressure natural gas injection engine.
  • the transfer apparatus described herein may be included and used in a fuel gas supply system (FGS system) for supplying fuel to a MEGI engine.
  • FGS system fuel gas supply system
  • the offshore structure is a concept that includes all kinds of liquefied gas carriers such as LNG carriers, LNG RV, container ships, and even plants such as LNG FPSO, Oil FPSO, LNG FSRU, LNG FRU, and BMPP.
  • combustion material used herein is not only used as fuel in various engines mounted on offshore structures for propulsion, power generation, etc., but also stored in a storage tank for transporting as cargo in the above described offshore structures.
  • the concept is all inclusive.
  • space means a zone partitioned by a partition
  • expression “in the same space” means that two or more pieces of equipment are installed together in one zone partitioned by a partition. Can be considered to be.
  • FIG. 1 shows an example of a transfer apparatus installed on an offshore structure and used to transfer combustible materials such as LNG.
  • the conveying apparatus shown in FIG. 1 uses an electric motor as a drive source.
  • a conveying apparatus for conveying a combustible material such as LNG or natural gas is installed in a conveying pipe 2 in a pressurized space (zone 0) 1 to pressurize the combustible material to convey the combustible material.
  • a pressurizing means (10) for conveying in one direction within the zone and an adjacent space (zone 1) (3) adjacent to the pressurizing space (1), which is to be treated as a hazardous area due to the risk of explosion, but partitioned by a partition (4)
  • an electric motor 12 installed as a driving means for driving the pressurizing means 10.
  • the 'pressing space' means a space in which a pressurizing means 10 for pressurizing the combustible material is installed for the transport of the combustible material
  • the 'adjacent space' refers to the 'pressing space' and the partition wall therebetween. It means an adjacent space.
  • the pressurized space should be treated as a hazardous area where flammable material may leak from the pressurizing means and an explosion may occur.
  • a pump may be used when transferring a combustible material in a liquid state such as LNG, and a compressor may be used when transferring a gaseous combustible material such as natural gas (BOG).
  • a gaseous combustible material such as natural gas (BOG).
  • pressurized space (1) as a pump room or compressor room is a potentially explosive area due to the leakage of flammable materials, equipment that uses electricity that can generate sparks in the pressurized space for safety. Cannot be installed.
  • the electric motor 12 as a driving means of the pressurizing means may be an explosion-proof electric motor, even in the case of an explosion-proof electric motor, it is not installed in the space where the flammable material may leak for safety (that is, the pressurized space 1). May be required.
  • the electric motor 12 operated by electricity can be installed in the adjacent space 3 as a motor room partitioned from the pressurized space 1 by the partition wall 4, wherein the electric motor
  • the driving force of the 12 is transmitted to the pressurizing means 10 through the drive shaft 13 penetrating the partition 4.
  • Electricity supply to the electric motor 12 may be made by a power generation device 15 installed outside (safe zone) of the motor compartment.
  • the part where the drive shaft 13 penetrates the partition 4 must be sealed by the sealing bearing means 5 so that the inflow of the combustible material can be blocked.
  • the electric motor can be installed in a separate space partitioned by the partition wall from the pressurizing means of the combustible material, and thus the apparatus and method for transporting the combustible material of the marine structure that can safely transport the combustible material. This may be provided.
  • the conveying apparatus shown in FIG. 1 is made by connecting the pressurizing means 10 and the electric motor 12 which are installed in separate spaces with the partition 4 therebetween by the drive shaft 13, the pressurizing means.
  • the inventors have found that when the 10 and the electric motor 12 are installed in the respective spaces, a lot of time and effort are consumed in the alignment of the drive shaft 13.
  • the exhaust device 17 should be provided in preparation for the inflow of the combustible material. It is difficult to reduce the size of the adjacent space 3, and there is also a problem that the space utilization is reduced.
  • FIG. 2 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor, according to the first embodiment of the present invention.
  • a conveying apparatus for conveying a combustible material such as LNG or natural gas is installed in the conveying pipe 2 in a pressurized space (zone 0) 1 to pressurize the combustible material to convey the combustible material.
  • a hydraulic motor as a driving means which is installed together with the pressurizing means 10 for feeding in one direction and the pressurizing means 10 in the pressurizing space 1 to drive the pressurizing means 10 ( 20).
  • a pump may be used when transferring a combustible material in a liquid state such as LNG, and a compressor may be used when transferring a gaseous combustible material such as natural gas (BOG).
  • a gaseous combustible material such as natural gas (BOG).
  • the pressurized space (1) as a pump or compressor room (1) is an explosive area due to the leakage of flammable materials. Therefore, for the sake of safety, equipment that uses electricity that can generate sparks may be used. It cannot be installed. Since the hydraulic motor 20 is not an electric equipment, it can be installed in the pressurized space 1.
  • the drive shaft 21 is connected between the hydraulic motor 20 and the pressurizing means 10, and the driving force of the hydraulic motor 20 can be transmitted to the pressurizing means 10 through the drive shaft 21.
  • the supply of the working fluid to the hydraulic motor 20 can be performed simply by the hydraulic generator already installed in the offshore structure.
  • the dedicated hydraulic pressure generator 23 and the hydraulic motor 20 may be configured to receive a working fluid through the hydraulic line 25 extending between the.
  • the dedicated hydraulic pressure generator 23 may include two hydraulic pumps 24 having the same specifications in preparation for the failure.
  • the hydraulic motor 20 of the present embodiment may be a variable speed hydraulic motor whose speed can be varied.
  • a variable speed hydraulic motor there is no need to use a separate reduction gear, so it takes up less installation space and is advantageous for maintenance than an electric motor that requires a reduction gear such as a reduction gear.
  • FIG. 3 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor according to a second embodiment of the present invention.
  • the combustible material conveying apparatus according to the second embodiment of the present invention shown in FIG. 3 is similar to the combustible material conveying apparatus according to the first embodiment of the present invention described above with reference to FIG. (1) a pressurizing means (10) installed in the conveying pipe (2) to pressurize the combustible material in one direction in the conveying pipe (2) and the pressurizing means (10) in the pressurizing space (1). And a hydraulic motor 20 as a driving means installed to drive the pressing means 10.
  • a pump may be used when transferring a combustible material in a liquid state such as LNG, and a compressor may be used when transferring a gaseous combustible material such as natural gas (BOG).
  • a gaseous combustible material such as natural gas (BOG).
  • the combustible material conveying apparatus which concerns on 2nd Embodiment may further include the partition 6 which partitions the pressurization space 1 into two or more. Of the two spaces partitioned by the partition 6, the side on which the pressurizing means 10 is installed should still be treated as a potentially hazardous area. In addition, the space opposite to the space in which the pressurizing means 10 is installed around the partition 6 can be treated as the adjacent space 7 adjacent to the pressurized space 1 which is a dangerous area.
  • Adjacent space 7 can be installed a variety of equipment (8) that can not be installed in the pressurized space (1) because of the risk of fire or explosion.
  • equipment 8 installed in the adjacent space 7 for example, various devices involved in the fuel gas supply to the engine, a unit for controlling the devices, and the like can be given.
  • Combustible material transfer apparatus of the present invention can be installed on the deck 31, the hydraulic generator 23 is installed for the supply of the working fluid to the hydraulic motor 20 is provided below the deck 31 It may be arranged in the engine room (or machine room) 32.
  • FIGS. 2 and 3 shows the conveying pipe 2 extending upward through the pressurized space 1 from the bottom of the deck 31, but this is only an example and the conveying pipe 2 shown in FIGS. 2 and 3.
  • the present invention is not limited by the extending direction of.
  • FIG. 4 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor according to a third embodiment of the present invention.
  • the combustible material conveying apparatus according to the third embodiment of the present invention shown in FIG. 4 is similar to the combustible material conveying apparatus according to the first embodiment of the present invention described above with reference to FIG. (1) a pressurizing means (10) installed in the conveying pipe (2) to pressurize the combustible material in one direction in the conveying pipe (2) and the pressurizing means (10) in the pressurizing space (1). And a hydraulic motor 20 as a driving means installed to drive the pressing means 10.
  • a pump may be used when transferring a combustible material in a liquid state such as LNG, and a compressor may be used when transferring a gaseous combustible material such as natural gas (BOG).
  • a gaseous combustible material such as natural gas (BOG).
  • the pressurized space (1) as a pump or compressor room (1) is an explosive area due to the leakage of flammable materials. Therefore, for the sake of safety, equipment that uses electricity that can generate sparks may be used. It cannot be installed. Since the hydraulic motor 20 is not an electric equipment, it can be installed in the pressurized space 1.
  • the drive shaft 21 is connected between the hydraulic motor 20 and the pressurizing means 10, and the driving force of the hydraulic motor 20 can be transmitted to the pressurizing means 10 through the drive shaft 21.
  • the combustible material conveying apparatus which concerns on 3rd Embodiment of this invention shown in FIG. 4 is the lubricating oil pump 40 for supplying lubricating oil to the hydraulic motor 20 installed in the pressurization space 1, and this lubricating oil pump (
  • the hydraulic motor 50 for lubricating oil pump which drives 40 is different from the combustible material conveying apparatus which concerns on the 1st Embodiment of this invention mentioned above in that it installs in the pressurization space 1 with the hydraulic motor 20.
  • the hydraulic motor 20 In order to smoothly drive the hydraulic motor 20, lubrication between the moving parts is required.
  • the combustible material is LNG
  • the temperature of LNG is extremely low at about -163 ° C at room temperature
  • the temperature of the pressurizing means 10 is very low due to the influence. Therefore, the hydraulic motor 20 installed near the pressurizing means 10 and connected to the drive shaft 21 may also be affected by low temperature.
  • the ambient temperature is low, since the viscosity of the lubricant increases, there is a fear that lubrication may not be performed well, and circulation of the lubricant may be required.
  • the lubricating oil Since the hydraulic motor 20 of the present embodiment is connected through the pressurizing means 10 for pressurizing the combustible material and the drive shaft 21, the lubricating oil has a structure in which the lubricating oil is accumulated inside the hydraulic motor 20. It is good to have a circulating structure. To this end, the lubricating oil pump 40 and the lubricating oil pump hydraulic motor 50 are installed at positions spaced apart from the pressurizing means 10 and the hydraulic motor 20 inside the pressurizing space 1.
  • the drive shaft 21 is connected between the hydraulic motor 20 and the pressing means 10 so that the driving force of the hydraulic motor 20 can be transmitted to the pressing means 10, the hydraulic motor 50 for the lubricating oil pump 50
  • the driving shaft 51 is connected between the hydraulic motor 50 for the lubricating oil pump and the lubricating oil pump 40 so that the driving force can be transmitted to the lubricating oil pump 40.
  • the lubricating oil is supplied into the hydraulic motor 20 through a lubricating oil supply line 41 extending from the lubricating oil pump 40 to the hydraulic motor 20. And, it can be returned to the lubricating oil pump 40 through the lubricating oil return line 42 extending from the hydraulic motor 20 to the lubricating oil pump 40.
  • the supply of the working fluid to the hydraulic motor 20 and the hydraulic motor 50 for the lubricating oil pump can be performed simply by the hydraulic generator already installed in the offshore structure.
  • the dedicated hydraulic pressure generating device 53 includes a first hydraulic pump 24 for supplying a working fluid to the hydraulic motor 20 and a second hydraulic pump for supplying a working fluid to the hydraulic motor 50 for the lubricating oil pump ( 54 and a reservoir 52 capable of storing the working fluid.
  • two hydraulic pumps having the same specifications can be included in the hydraulic generator 53 in preparation for a failure.
  • the working fluid stored in the reservoir 52 is pressurized by the first hydraulic pump 24 and then supplied to the hydraulic motor 20 through the first supply line 25 to operate the hydraulic motor 20, It may be returned to the reservoir 52 through the first return line 26. If necessary, some or all of the working fluid returned through the first return line 26 may be supplied directly upstream of the first hydraulic motor 24 of the first supply line 25 without passing through the reservoir 52. .
  • the working fluid stored in the reservoir 52 is pressurized by the second hydraulic pump 54 and then supplied to the hydraulic motor 50 for the lubricating oil pump through the second supply line 55 to supply hydraulic pressure for the lubricating oil pump.
  • the motor 50 can be operated and returned to the reservoir 52 via the second return line 56. If necessary, some or all of the working fluid returned through the second return line 56 may be supplied directly upstream of the second hydraulic motor 54 of the second supply line 55 without passing through the reservoir 52. .
  • a first drain line 27 may be installed for use when discharging all working fluids in the hydraulic motor 20 for maintenance of the hydraulic motor 20.
  • the first drain line 27 may extend from the lower end of the hydraulic motor 20, in particular the hydraulic motor 20, to the outside of the reservoir 52 or the hydraulic generator 53.
  • the valve 28 is installed in the first drain line 27, and the valve 28 is opened only when the drain operation is performed to drain the working fluid in the hydraulic motor 20 toward the reservoir 52, for example.
  • a second drain line 57 may be installed for use in discharging all working fluids in the lubricating oil pump hydraulic motor 20 for maintenance of the lubricating oil pump hydraulic motor 50.
  • the second drain line 57 may extend from the lower end of the hydraulic motor 50 for the lubricating oil pump, in particular the hydraulic motor 50 for the lubricating oil pump, to the outside of the reservoir 52 or the hydraulic generator 53.
  • the second drain line 57 is provided with a valve 58. The valve 58 is opened only when the draining operation is performed to drain the working fluid in the lubricating oil pump hydraulic motor 50 to the reservoir 52, for example. .
  • the hydraulic motor 20 and the hydraulic motor 50 for the lubricating oil pump of the present embodiment may be a variable speed hydraulic motor whose speed can be varied.
  • a variable speed hydraulic motor there is no need to use a separate reduction gear, so it takes up less installation space and is advantageous for maintenance than an electric motor that requires a reduction gear such as a reduction gear.
  • FIG. 5 is a view for explaining a combustible material conveying apparatus driven by a hydraulic motor according to a fourth embodiment of the present invention.
  • the combustible material conveying apparatus according to the fourth embodiment of the present invention shown in FIG. 5 is similar to the combustible material conveying apparatus according to the third embodiment of the present invention described above with reference to FIG. 4.
  • a pressurizing means (10) installed in the conveying pipe (2) to pressurize the combustible material in one direction in the conveying pipe (2) and the pressurizing means (10) in the pressurizing space (1).
  • a hydraulic motor 20 as a driving means installed to drive the pressing means 10.
  • a pump may be used when transferring a combustible material in a liquid state such as LNG, and a compressor may be used when transferring a gaseous combustible material such as natural gas (BOG).
  • a gaseous combustible material such as natural gas (BOG).
  • the pressurized space (1) as a pump or compressor room (1) is an explosive area due to the leakage of flammable materials. Therefore, for the sake of safety, equipment that uses electricity that can generate sparks may be used. It cannot be installed. Since the hydraulic motor 20 is not an electric equipment, it can be installed in the pressurized space 1.
  • the drive shaft 21 is connected between the hydraulic motor 20 and the pressurizing means 10, and the driving force of the hydraulic motor 20 can be transmitted to the pressurizing means 10 through the drive shaft 21.
  • the hydraulic fluid 20 uses a working fluid used for driving the hydraulic motor 20. It is used as lubricating oil supplied to. Therefore, the lubricating oil pump 40 and the lubricating oil pump hydraulic motor 50 contained in 4th Embodiment mentioned above become unnecessary in this 5th Embodiment.
  • the supply of the working fluid to the hydraulic motor 20, it can be performed simply by the hydraulic generator is already installed in the offshore structure.
  • the hydraulic motor 20 for driving the pressurizing means 10 of the combustible material and the hydraulic pressure device 53 for supplying the lubricating oil to the hydraulic motor 20 by installing the hydraulic pressure may be configured to receive the working fluid and the lubricating oil.
  • the dedicated hydraulic pressure generating unit 53 includes a first hydraulic pump 24 for supplying a working fluid to the hydraulic motor 20, and a second hydraulic pump 54 for supplying a working fluid as lubricating oil to the hydraulic motor 20. And a reservoir 52 capable of storing the working fluid.
  • two hydraulic pumps having the same specifications can be included in the hydraulic generator 53 in preparation for a failure.
  • the working fluid stored in the reservoir 52 is pressurized by the first hydraulic pump 24 and then supplied to the hydraulic motor 20 through the first supply line 25 to operate the hydraulic motor 20, It may be returned to the reservoir 52 through the first return line 26. If necessary, some or all of the working fluid returned through the first return line 26 may be supplied directly upstream of the first hydraulic motor 24 of the first supply line 25 without passing through the reservoir 52. .
  • the working fluid stored in the reservoir 52 is pressurized by the second hydraulic pump 54 and then supplied as lubricating oil to the hydraulic motor 20 through the second supply line 55 and the second return line. Via 56 may be returned to the reservoir 52 again. If necessary, some or all of the working fluid returned through the second return line 56 may be supplied directly upstream of the second hydraulic motor 54 of the second supply line 55 without passing through the reservoir 52. .
  • a first drain line 27 may be installed for use when discharging all working fluids in the hydraulic motor 20 for maintenance of the hydraulic motor 20.
  • the first drain line 27 may extend from the lower end of the hydraulic motor 20, in particular the hydraulic motor 20, to the outside of the reservoir 52 or the hydraulic generator 53.
  • the valve 28 is installed in the first drain line 27, and the valve 28 is opened only when the drain operation is performed to drain the working fluid in the hydraulic motor 20 toward the reservoir 52, for example.
  • a lubricant drain line 67 for use when discharging all the lubricant used in the hydraulic motor for maintenance of the hydraulic motor 20 may be installed.
  • the lubricating oil drain line 67 may extend from the lubricating oil circulating part inside the hydraulic motor 20, in particular, the hydraulic motor 20 to the outside of the reservoir 52 or the hydraulic generator 53.
  • the valve 68 is installed in the lubricating oil drain line 67, and the valve 68 is opened only when the draining operation is performed to drain the working fluid as the lubricating oil in the hydraulic motor 20 toward the reservoir 52, for example.
  • the hydraulic motor 20 of the present embodiment may be a variable speed hydraulic motor whose speed can be varied.
  • a variable speed hydraulic motor there is no need to use a separate reduction gear, so it takes up less installation space and is advantageous for maintenance than an electric motor that requires a reduction gear such as a reduction gear.
  • a hydraulic motor that is free of electric spark generation as a driving source included in the combustible material conveying device can be used to safely transport the combustible material without fear of explosion or fire.
  • the pressurizing means of the conveying apparatus for pressurizing the combustible material for conveying and the driving means for operating the pressurizing means that is, the hydraulic motor in the same space Since it can be installed together, the pressurizing means and the driving means do not need to perform the axial alignment or sealing of the area, respectively, compared to the case where it is installed in a separate space is advantageous in terms of maintenance and space utilization.
  • the hydraulic motor used in place of the electric motor has a relatively small size compared to the electric motor, and unlike the electric motor, the hydraulic motor does not need to be equipped with a reducer, Compared to large offshore structures, it can be easily applied to small and medium offshore structures where equipment installation space is narrow.
  • the present invention when the present invention is applied to a ship carrying a cargo such as an LNG carrier or a container ship, the size of the space to be secured for the combustible material transporter is reduced, and thus the amount of cargo can be increased, which is very advantageous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Reciprocating Pumps (AREA)

Abstract

La présente invention concerne un dispositif et un procédé pour transférer des matières inflammables, qui sont aptes à transférer en toute sécurité des matières inflammables sans risque d'explosion ou d'incendie à l'aide d'un moteur hydraulique comme source d'entraînement pour actionner un compresseur ou une pompe lors du transfert des matières inflammables, telles que LNG, dans une structure en mer. Le dispositif pour transférer des matières inflammables dans une structure en mer, qui est utilisé pour transférer les matières inflammables dans la structure en mer d'un endroit à un autre, selon la présente invention, est un dispositif pour transférer des matières inflammables dans une structure en mer, comprenant : un moyen de pression monté dans une zone à risque pour transférer les matières inflammables dans une première direction par pression des matières inflammables ; et un moteur hydraulique pour entraîner le moyen de pression, le moteur hydraulique étant monté dans une zone dangereuse avec le moyen de pression, et un procédé de transfert l'utilisant.
PCT/KR2014/008660 2013-09-17 2014-09-17 Dispositif et procédé pour transférer des matières inflammables dans une structure en mer Ceased WO2015041465A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/659,484 US9745922B2 (en) 2013-09-17 2015-03-16 Apparatus and method for supplying fuel to engine of ship
US14/659,544 US9683518B2 (en) 2013-09-17 2015-03-16 Fuel gas supply apparatus
US14/659,499 US9151248B2 (en) 2013-09-17 2015-03-16 Apparatus and method for transferring inflammable material on marine structure
US14/874,323 US9751606B2 (en) 2013-09-17 2015-10-02 Apparatus and method for transferring inflammable material on marine structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20130112205A KR20150032131A (ko) 2013-09-17 2013-09-17 해양구조물의 가연성 물질 이송장치 및 방법
KR10-2013-0112205 2013-09-17

Related Parent Applications (1)

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US14/521,855 Continuation-In-Part US9683517B2 (en) 2013-09-17 2014-10-23 Apparatus and method for supplying fuel to engine of ship

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/521,855 Continuation-In-Part US9683517B2 (en) 2013-09-17 2014-10-23 Apparatus and method for supplying fuel to engine of ship
PCT/KR2015/000176 Continuation-In-Part WO2015105344A1 (fr) 2013-09-17 2015-01-08 Appareil d'alimentation en carburant gazeux

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WO2015041465A1 true WO2015041465A1 (fr) 2015-03-26

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WO (1) WO2015041465A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030038393A (ko) * 2001-11-05 2003-05-16 이데아칩 오이 유압펌프의 드레인 오일 복귀방법 및 장치
KR20080042928A (ko) * 2005-10-05 2008-05-15 엠에이엔 디젤 에이/에스 선박 추진 시스템
KR20090117553A (ko) * 2008-05-09 2009-11-12 바우어 머쉬넨 게엠베하 시공 기계
KR20120003585U (ko) * 2010-11-15 2012-05-23 대우조선해양 주식회사 Ｌｎｇ를 연료로 사용하는 선박

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030038393A (ko) * 2001-11-05 2003-05-16 이데아칩 오이 유압펌프의 드레인 오일 복귀방법 및 장치
KR20080042928A (ko) * 2005-10-05 2008-05-15 엠에이엔 디젤 에이/에스 선박 추진 시스템
KR20090117553A (ko) * 2008-05-09 2009-11-12 바우어 머쉬넨 게엠베하 시공 기계
KR20120003585U (ko) * 2010-11-15 2012-05-23 대우조선해양 주식회사 Ｌｎｇ를 연료로 사용하는 선박

Also Published As

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