WO2017031986A1 - 一种bog蓄能压差lng加气站 - Google Patents
一种bog蓄能压差lng加气站 Download PDFInfo
- Publication number
- WO2017031986A1 WO2017031986A1 PCT/CN2016/077938 CN2016077938W WO2017031986A1 WO 2017031986 A1 WO2017031986 A1 WO 2017031986A1 CN 2016077938 W CN2016077938 W CN 2016077938W WO 2017031986 A1 WO2017031986 A1 WO 2017031986A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bog
- lng
- valve
- shut
- storage tank
- Prior art date
Links
Images
Classifications
-
- 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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied 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
- 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
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
Definitions
- the invention relates to the field of an LNG filling station, in particular to a BOG accumulator pressure difference LNG filling station.
- LNG liquefied natural gas
- steamships are rapidly emerging in China.
- LNG as a fuel for automobiles and ships is safe, economical, clean, efficient, environmentally friendly and storage efficient compared to other conventional vehicle fuels.
- the use of LNG as an alternative fuel for automobiles and ships can not only effectively reduce environmental pollution and alleviate the pressure of oil resources shortage, but also achieve sustainable economic development. The best choice for improving the environment.
- LNG filling station is a liquefied natural gas produced or imported by LNG liquefaction plant. It is transported by tank truck to LNG filling station, and unloading and refueling is completed by submerged pump or self-pressurizing method.
- gas station equipment especially in the pre-cooling process of the submersible pump (the submersible pump must be pre-cooled to -100 or so, in the pre-cooling process, it is often necessary to pass multiple BOG venting), a certain part of LNG will be vaporized into BOG (Boil Off Gas) gas, together with BOG gas generated by vehicles and ships.
- BOG Bit Off Gas
- these BOG gases can be reliquefied by running equipment, most BOGs Since the cost of recycling is relatively high, the gas is discharged in vain, which not only wastes energy but also pollutes the environment.
- the invention provides a BOG energy storage pressure difference LNG filling station, which aims to solve the prior art problem, and provides an energy storage pressure difference LNG filling station which is energy-saving, environmentally-friendly and fully utilizes BOG gas generated by the process pipeline.
- a BOG energy storage pressure difference LNG filling station including LNG tank truck, supercharged vaporizer, LNG low temperature storage tank, gas filling equipment and LNG filling machine, LNG tank truck is connected with pressurized vaporizer and LNG low temperature storage tank through pipeline
- An intake pipe and an outlet pipe are arranged between the supercharged vaporizer and the LNG tank truck, the LNG low temperature storage tank is connected to the LNG dosing machine through the first pipe, and the LNG dosing machine is connected to the gas filling device, characterized in that: the gas filling
- An LNG intake pipe and a BOG exhaust pipe are arranged between the equipment and the LNG dosing machine, and the LNG dosing machine connects the BOG heater, the LNG cryogenic storage tank and the intake pipe through the first BOG recovery pipe, and the BOG heater is connected to the BOG buffer tank.
- the BOG buffer tank is connected to the BOG compressor, the BOG compressor is connected to the BOG storage tank, the BOG storage tank is respectively connected to the intake pipe and the first BOG recovery pipeline through the second pipeline, and the LNG cryogenic storage tank is connected to the BOG heater through the second BOG recovery pipeline.
- the intake pipe and the outlet pipe are respectively provided with a shut-off valve F1 and a shut-off valve F2, and a connecting pipe F3, a shut-off valve F4 and a shut-off valve F5 are arranged on the connecting pipe between the LNG tank car and the LNG cryogenic storage tank,
- the first pipe is provided with a shut-off valve F6,
- the first BOG recovery pipe is provided with a shut-off valve F7 and a shut-off valve F8, a check valve F7 and a shut-off valve F8 and a LNG dosing machine are provided with a check valve, and the second BOG is recovered.
- the pipeline is provided with a shut-off valve F11, the first BOG recovery pipeline and the second BOG recovery pipeline are connected and connected to the BOG heater through a shut-off valve F12, and the pipeline connected to the BOG buffer tank and the BOG compressor is provided with a shut-off valve F10, the second pipeline A shut-off valve F9 is provided thereon.
- the motor power is reduced by 65% compared with the motor power of the low temperature submersible pump, saving the operating cost of the gas station.
- Figure 1 is a schematic view of the structure of the present invention.
- a BOG accumulator pressure difference LNG filling station includes an LNG tank car 1, a supercharging vaporizer 2, an LNG cryogenic storage tank 12, a gas filling device 14 and an LNG dosing machine 22, and the LNG tank car 1 passes
- the pipeline is respectively connected with the supercharged vaporizer 2 and the LNG cryogenic storage tank 12, and between the supercharged vaporizer 2 and the LNG tanker 1 is provided with an intake pipe 23 and an outlet pipe 24, and the LNG cryogenic storage tank 12 is connected to the LNG dosing machine 22 through the pipe 25.
- the LNG dosing machine 22 is connected to the gas filling device 14, and between the gas filling device 14 and the LNG dosing machine 22, an LNG intake pipe 26 and a BOG exhaust pipe 27 are provided, and the LNG dosing machine 22 passes the first BOG recovery pipe.
- 28 connects BOG heater 20, LNG low temperature storage tank 12 and intake pipe 23, BOG heater 20 is connected to BOG buffer tank 19, BOG buffer tank 19 is connected to BOG compressor 16, BOG compressor 16 is connected to BOG storage tank 15, BOG storage tank 15 is connected to the intake pipe 23 and the first BOG recovery pipe 28 through the second pipe 30, respectively, and the LNG cryogenic storage tank 12 is connected to the BOG heater 20 through the second BOG recovery pipe 29.
- the intake pipe 23 and the outlet pipe 24 are respectively provided with a shut-off valve F1 3 and a shut-off valve F2 4 , and a connecting pipe between the LNG tank car 1 and the LNG cryogenic storage tank 12 is provided with a shut-off valve F3 5 and a shut-off valve F4.
- the first pipe 25 is provided with a shut-off valve F6 8
- the first BOG recovery pipe 28 is provided with a shut-off valve F7 9 and a shut-off valve F8 10
- a check valve 17 is disposed between the liquid machines 22, and a shutoff valve F11 18 is disposed on the second BOG recovery pipe 29, and the first BOG recovery pipe 28 and the second BOG recovery pipe 29 are connected and connected to the BOG heater through the shutoff valve 12 21 20.
- the pipeline connecting the BOG buffer tank 19 and the BOG compressor 16 is provided with a shut-off valve F10 13
- the second conduit 30 is provided with a shut-off valve F9 11.
- the working principle of the invention is: mainly utilizing the compressibility of the gas and the incompressibility of the liquid, and collecting the stored or liquid-converted gas as energy, and when the liquid natural gas is converted into a gaseous state, the volume is increased by 600 times (this is LNG One of the intrinsic properties) these gases can only generate pressure in a limited volume of the container.
- the gas storage tank, the gas compressor, the valve, and the corresponding process pipeline the gas is subjected to directional pressure distribution, so that a directional pressure difference is formed between the containers, and since the liquid specific gravity is much larger than the specific gravity of the gas, the high pressure container
- the conveyed material (LNG liquid) is pressed into a container with a low pressure, and the workflow is as follows:
- Self-boosting unloading After the LNG tanker 1 is in communication with the LNG cryogenic storage tank 12 and the pressurized vaporizer 2, the shut-off valve F1 3, the shut-off valve F2 4, the shut-off valve F3 5, the shut-off valve F4 6 and the shut-off valve 5 7 are opened. At this time, the LNG liquid in the LNG tanker 1 flows into the supercharged vaporizer 2 for vaporization, and the vaporized gas enters the LNG tank truck 1 through the pipeline of the shutoff valve F1 3 to be pressurized, when the LNG tanker 1 and the LNG cryogenic tank 12 When a certain pressure difference is reached, the LNG liquid in the LNG tanker 1 flows into the LNG low temperature storage tank 12 to realize self-pressurization unloading. After the unloading is completed, the original valves of the various shut-off valves are restored (ie, closed).
- the LNG tanker 1 can be pressurized by using the stored BOG gas in the BOG storage tank 15, without the need to pressurize the LNG liquid after the steaming, when the LNG tanker 1 and After the corresponding pipes of the LNG low temperature storage tank 12 and the BOG storage tank 15 are connected, the shut-off valve F1 3 and the shut-off valve F8 10 are opened, and the shut-off valve F8 10 is closed after the LNG tank car 1 and the LNG low-temperature storage tank 12 are pressed, and the cut-off valve is opened.
- BOG gas in the BOG storage tank 15 (pressure greater than the pressure of the LNG tank truck 1) enters the LNG tank truck 1 to pressurize it, when LNG in LNG tanker 1 when the pressure reaches the set pressure
- the liquid enters the tank from the top (or bottom) of the LNG cryogenic storage tank 12 to realize unloading. After the unloading is completed, the shut-off valves are restored to their original state.
- shutoff valve F6 8 and the shutoff valve F7 9 are opened, and the gas filling device is installed.
- the return air of 14 enters the bottom (or top) of the LNG cryogenic storage tank 12, and the LNG cryogenic storage tank 12 is isostatic with the gas filling equipment 14, and the LNG cryogenic storage tank 12 is operated due to the gravitational potential energy of the liquid in the LNG cryogenic storage tank 12.
- the LNG liquid enters the gas filling device 14 through the LNG dosing machine 22 to effect dosing. After the filling is completed, the shut-off valves are restored to their original state.
- shut-off valve F6 8 When the gravitational potential energy of the liquid in the LNG cryogenic storage tank 12 cannot satisfy the liquid addition, the shut-off valve F6 8 , the shut-off valve F10 13 and the shut-off valve F12 21 are opened, and then the filling device 14 and the BOG buffer tank 19 are pressed.
- the pressure of the tank of the gas filling device 14 is rapidly reduced to be lower than the set working pressure of the LNG storage in the LNG low temperature storage tank 12, at which time LNG
- the LNG liquid in the low temperature storage tank 12 enters the storage tank of the gas filling device 14 through the shut-off valve F6 8 and the LNG liquid adding machine 22, so as to add liquid to the gas filling device 14, and the working pressure range set by the BOG buffer tank 19 passes through the BOG.
- the compressor 16 is interlocked.
- the BOG compressor 16 When the working pressure of the BOG buffer tank 19 reaches the upper limit of the set pressure, the BOG compressor 16 is automatically started, and the BOG gas in the BOG buffer tank 19 is pressed into the BOG storage which is a certain multiple of its volume.
- the BOG gas stored in the tank 15 and stored in the BOG storage tank 15 serves as a pressurized gas source for the LNG tank 1 and the LNG cryogenic storage tank 12, that is, BOG energy storage.
- the BOG compressor 16 When the working pressure of the BOG buffer tank 19 reaches the set pressure lower limit, the BOG compressor 16 is automatically stopped.
- the shut-off valve F11 18, the shut-off valve F12 21, the shut-off valve F10 13, the shut-off valve F9 11, the shut-off valve F7 9, the BOG compressor 16 is started, and the LNG is turned on.
- the BOG gas in the cryogenic storage tank 12 is pressed toward the bottom of the LNG cryogenic storage tank 12, and part of the BOG gas is liquefied by the cold energy of the LNG liquid in the LNG cryogenic storage tank 12.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
一种BOG蓄能压差LNG加气站,具有LNG槽车(1)、增压汽化器(2)、LNG低温储罐(12)、加气设备(14)和LNG加液机(22),加气设备(14)与LNG加液机(22)之间设有LNG进气管(26)和BOG排气管(27),LNG加液机(22)通过第一BOG回收管道(28)连接BOG加热器(20)、LNG低温储罐(12)和进气管(23),BOG加热器(20)连接BOG缓冲罐(19),BOG缓冲罐(19)连接BOG压缩机(16),BOG压缩机(16)连接BOG储存罐(15),BOG储存罐(15)通过第二管道(30)分别连接进气管(23)和第一BOG回收管道(28),LNG低温储罐(12)通过第二BOG回收管道(29)连接BOG加热器(20)。通过连接管道配合截止阀工作,该加气站无需低温潜液泵以及相配套的保温泵池,节约设备成本。通过BOG压缩机回收储存一定压力的BOG气体,节约加气站的运营成本,同时,可实现低温储罐BOG气体站内再液化功能,最大限度的减少BOG排放,节约能源和减少环境污染。
Description
本发明涉及一种LNG加气站的领域,尤其涉及一种BOG蓄能压差LNG加气站。
随着新能源汽车、轮船的发展,液化天然气(LNG)汽车、轮船加气站正迅速在国内兴起,LNG作为汽车、轮船燃料相对于其它传统车用燃料具有安全经济、清洁高效环保、储存效率高等明显优势,在响应国家节能减排的号召下,使用LNG作为汽车、轮船替代燃料,不仅能够有效减小环境污染和缓解石油资源紧缺而带来的压力,同时,也是实现经济可持续发展和改善环境的最佳选择。
随着国家对节能减排工作重视程度的加强及改善人类生活环境工作的进程,LNG的广泛运用必将成为将来城市公交、汽车运输、船舶运输的主要替代能源,而与之配套的LNG加气站也必将带来蓬勃地发展。
在现有技术条件下,
1.LNG加气站是将LNG液化工厂生产或进口的液化天然气,采用槽车运输到LNG加气站,通过潜液泵或自增压方式,完成卸车和加气。加气站设备在运行过程中尤其在潜液泵预冷过程(潜液泵必须预冷到-100左右才能工作,在预冷过程中往往要通过多次BOG放空)必然会使一部分LNG汽化成BOG(Boil Off Gas,闪蒸气)气体,再加上车辆和船舶所产生的BOG气体,这些BOG气体虽然可以通过运行设备再液化,但大部分的BOG
气体由于回收利用的成本相对较高,因此而白白排放掉,不仅浪费了能源,而且污染了环境。
2.LNG加气站最关键的核心设备是低温潜液泵,然而此泵的技术含量高,正常运行使用的条件要求比较高,维修难度大,目前98%的低温潜液泵依赖于极少数国家进口,存在潜在的产业风险隐患。
发明内容
本发明提供一种BOG蓄能压差LNG加气站,目的是解决现有技术问题,提供节能、环保,充分利用工艺管线产生的BOG气体的一种蓄能压差LNG加气站。
本发明解决问题采用的技术方案是:
一种BOG蓄能压差LNG加气站,包括LNG槽车、增压汽化器、LNG低温储罐、加气设备和LNG加液机,LNG槽车通过管道分别连接增压汽化器和LNG低温储罐,增压汽化器与LNG槽车之间设有进气管和出液管,LNG低温储罐通过第一管道连接LNG加液机,LNG加液机连接加气设备,其特征在于:所述加气设备与LNG加液机之间设有LNG进气管和BOG排气管,LNG加液机通过第一BOG回收管道连接BOG加热器、LNG低温储罐和进气管,BOG加热器连接BOG缓冲罐,BOG缓冲罐连接BOG压缩机,BOG压缩机连接BOG储存罐,BOG储存罐通过第二管道分别连接进气管和第一BOG回收管道,LNG低温储罐通过第二BOG回收管道连接BOG加热器。
所述进气管和出液管上分别设有截止阀F1和截止阀F2,LNG槽车与LNG低温储罐之间的连接管道上设有截止阀F3、截止阀F4和截止阀F5,
第一管道上设有截止阀F6,第一BOG回收管道上设有截止阀F7和截止阀F8,截止阀F7和截止阀F8与LNG加液机之间设有单向阀,第二BOG回收管道上设有截止阀F11,第一BOG回收管道和第二BOG回收管道联通并通过截止阀F12连接BOG加热器,BOG缓冲罐与BOG压缩机连接的管道上设有截止阀F10,第二管道上设有截止阀F9。
本发明的有益效果:
1.不需要低温潜液泵以及相配套的保温泵池,简化工艺管线,节约设备采购成本。
2.采用BOG压缩机借助回收储存一定压力的BOG气体,电机功率比低温潜液泵的电机功率减少65%,节约加气站的运营成本。
3.可实现低温储罐BOG气体站内再液化功能,最大限度的减少BOG排放,节约能源和减少环境污染。
4.可实现短时停电卸车和加气功能。
图1是本发明的结构示意图。
图中:1、LNG槽车;2、增压汽化器;3、截止阀F1;4、截止阀F2;5、截止阀F3;6、截止阀F4;7、截止阀F5;8、截止阀F6;9、截止阀F7;10、截止阀F8;11、截止阀F9;12、LNG低温储罐;13、截止阀F10;14、加气设备;15、BOG储存罐;16、BOG压缩机;17、单向阀;18、截止阀F11;19、BOG缓冲罐;20、BOG加热器;21、截止阀F12;22、LNG加液机;23、进气管;24、出液管;25、第一管道;26、LNG进气管;27、BOG排气管;28、第一BOG回收管道;29、第二BOG回收管道;30、第二管道。
以下结合附图和具体实施例对本发明作进一步说明。
如图1所示一种BOG蓄能压差LNG加气站,包括LNG槽车1、增压汽化器2、LNG低温储罐12、加气设备14和LNG加液机22,LNG槽车1通过管道分别连接增压汽化器2和LNG低温储罐12,增压汽化器2与LNG槽车1之间设有进气管23和出液管24,LNG低温储罐12通过管道25连接LNG加液机22,LNG加液机22连接加气设备14,所述加气设备14与LNG加液机22之间设有LNG进气管26和BOG排气管27,LNG加液机22通过第一BOG回收管道28连接BOG加热器20、LNG低温储罐12和进气管23,BOG加热器20连接BOG缓冲罐19,BOG缓冲罐19连接BOG压缩机16,BOG压缩机16连接BOG储存罐15,BOG储存罐15通过第二管道30分别连接进气管23和第一BOG回收管道28,LNG低温储罐12通过第二BOG回收管道29连接BOG加热器20。
所述进气管23和出液管24上分别设有截止阀F1 3和截止阀F2 4,LNG槽车1与LNG低温储罐12之间的连接管道上设有截止阀F3 5、截止阀F4 6和截止阀F5 7,第一管道25上设有截止阀F6 8,第一BOG回收管道28上设有截止阀F7 9和截止阀F8 10,截止阀F7 9和截止阀F8 10与LNG加液机22之间设有单向阀17,第二BOG回收管道29上设有截止阀F11 18,第一BOG回收管道28和第二BOG回收管道29联通并通过截止阀12 21连接BOG加热器20,BOG缓冲罐19与BOG压缩机16连接的管道上设有截止阀F10 13,第二管道30上设有截止阀F9 11。
本发明的工作原理为:主要是利用气体的可压缩性与液体的不可压缩性,将收集储存或液体转换的气体作为能量传递,液态天然气转换成气态时,体积增长600倍(这是LNG的固有性质之一),在有限的容器容积内,这些气体只能产生压力。通过气体储罐、气体压缩机、阀门、及相应的工艺管线,对气体进行定向压力分配,使容器之间形成定向压力差,再由于液体比重远大于气体的比重,由此,压力高的容器便将输送物(LNG液体)压入压力低的容器内,其工作流程如下:
一、卸车:
自增压卸车:LNG槽车1分别与LNG低温储罐12和增压汽化器2连通后,开启截止阀F1 3、截止阀F2 4、截止阀F3 5、截止阀F4 6和截止阀5 7,这时LNG槽车1中的LNG液体流入增压汽化器2进行汽化,汽化后的气体经过截止阀F1 3的管道进入LNG槽车1内进行增压,当LNG槽车1与LNG低温储罐12中达到一定压差时,LNG槽车1中的LNG液体流入LNG低温储罐12中,实现自增压卸车。卸车完后,恢复各截止阀原态(即关闭状态)。
除现有技术中的自增压卸车外,还可以利用BOG储存罐15中已储存的BOG气体对LNG槽车1进行增压,而无需用LNG液体汽化后增压,当LNG槽车1与LNG低温储罐12、BOG储存罐15相对应的管道连接后,开启截止阀F1 3、截止阀F8 10,待LNG槽车1、LNG低温储罐12平压后关闭截止阀F8 10,开启截止阀F3 5、截止阀F4 6(或截止阀F5 7)和截止阀F9 11,BOG储存罐15中的BOG气体(压力大于LNG槽车1的压力)进入LNG槽车1对其增压,当压力达到设定压力时,LNG槽车1中的LNG
液体从LNG低温储罐12的顶部(或底部)进入罐内,实现卸车,卸车完毕后,各截止阀恢复原态。
二、加液:
1.加气设备14与LNG加液机22之间的LNG进气管26和BOG排气管27接好后,开启截止阀F6 8和截止阀F7 9(或截止阀F8 10),加气设备14的回气进入LNG低温储罐12的底部(或顶部)),LNG低温储罐12与加气设备14等压,由于LNG低温储罐12内液体的重力势能作用,LNG低温储罐12中的LNG液体经过LNG加液机22进入加气设备14,实现加液。完成加液后各截止阀恢复原态。
2.当LNG低温储罐12内液体的重力势能不能满足加液时,开启截止阀F6 8、截止阀F10 13、截止阀F12 21,这时加气设备14储罐与BOG缓冲罐19平压,由于BOG缓冲罐19的容积大于加气设备14储罐容积的一定倍数,因此加气设备14储罐的压力快速下降至小于LNG低温储罐12中LNG储存的设定工作压力,这时LNG低温储罐12中的LNG液体便经截止阀F6 8、LNG加液机22进入加气设备14储罐内,实现对加气设备14加液,BOG缓冲罐19设定的工作压力范围通过BOG压缩机16进行联动,当BOG缓冲罐19的工作压力达到设定压力上限时,BOG压缩机16便自动启动,将BOG缓冲罐19中的BOG气体压入到比其体积大一定倍数的BOG储存罐15中储存,储存在BOG储存罐15中的BOG气体作为对LNG槽1、LNG低温储罐12的增压气源,即BOG蓄能。当BOG缓冲罐19的工作压力达到设定压力下限时,BOG压缩机16便自动停止。
3.再液化:
当LNG低温储罐12中的压力达到设定压力上限时,开启截止阀F11 18、截止阀F12 21、截止阀F10 13、截止阀F9 11、截止阀F7 9,启动BOG压缩机16,将LNG低温储罐12中的BOG气体压向LNG低温储罐12的底部,通过LNG低温储罐12中LNG液体的冷能,将部分BOG气体进行吸冷液化。
Claims (6)
- 一种BOG蓄能压差LNG加气站,包括LNG槽车(1)、增压汽化器(2)、LNG低温储罐(12)、加气设备(14)和LNG加液机(22),LNG槽车(1)通过管道分别连接增压汽化器(2)和LNG低温储罐(12),增压汽化器(2)与LNG槽车(1)之间设有进气管(23)和出液管(24),LNG低温储罐(12)通过第一管道(25)连接LNG加液机(22),LNG加液机(22)连接加气设备(14),其特征在于:所述加气设备(14)与LNG加液机(22)之间设有LNG进气管(26)和BOG排气管(27),LNG加液机(22)通过第一BOG回收管道(28)连接BOG加热器(20)、LNG低温储罐(12)和进气管(23),BOG加热器(20)连接BOG缓冲罐(19),BOG缓冲罐(19)连接BOG压缩机(16),BOG压缩机(16)连接BOG储存罐(15),BOG储存罐(15)通过第二管道(30)分别连接进气管(23)和第一BOG回收管道(28),LNG低温储罐(12)通过第二BOG回收管道(29)连接BOG加热器(20)。
- 根据权利要求1所述的BOG蓄能压差LNG加气站,其特征在于:所述进气管(23)和出液管(24)上分别设有截止阀F1(3)和截止阀F2(4),LNG槽车(1)与LNG低温储罐(12)之间的连接管道上设有截止阀F3(5)、截止阀F4(6)和截止阀F5(7),第一管道(25)上设有截止阀F6(8),第一BOG回收管道(28)上设有截止阀F7(9)和截止阀F8(10),截止阀F7(9)和截止阀F8(10)与LNG加液机(22)之间设有单向阀(17),第二BOG回收管道(29)上设有截止阀F11(18),第一BOG回收管道(28)和第二BOG回收管道(29)联通并通过截止阀F12 (21)连接BOG加热器(20),BOG缓冲罐(19)与BOG压缩机(16)连接的管道上设有截止阀F10(13),第二管道(30)上设有截止阀F9(11)。
- 一种使用根据权利要求1或2所述的BOG蓄能压差LNG加汽站进行卸车的方法,其特征在于:连接LNG槽车(1)与LNG低温储罐(12)、BOG储存罐(15)相对应的管道后,开启截止阀F1(3)、截止阀F8(10),待LNG槽车(1)与LNG低温储罐(12)平压后关闭截止阀F8(10),开启截止阀F3(5)、截止阀F4(6)和截止阀F9(11),BOG储存罐(15)中的BOG气体进入LNG槽车(1)对LNG槽车(1)增压,当压力达到设定压力时,LNG槽车(1)中的LNG液体进入LNG低温储罐(12)内。
- 一种使用根据权利要求1或2所述的BOG蓄能压差LNG加汽站进行加液的方法,其特征在于:连接加气设备(14)与LNG加液机(22)之间的LNG进气管(26)和BOG排气管(27)后,当LNG低温储罐(12)内液体的重力势能满足加液时,开启截止阀F6(8)和截止阀F7(9),加气设备(14)的回气进入LNG低温储罐(12)内,LNG低温储罐(12)与加气设备(14)等压,LNG低温储罐(12)中的LNG液体经LNG加液机(22)进入加气设备(14),实现对加气设备(14)加液;当LNG低温储罐(12)内液体的重力势能不满足加液时,开启截止阀F6(8)、截止阀F10(13)和截止阀F12(21),加气设备(14)储罐与BOG缓冲罐(19)平压,使得加气设备(14)储罐的压力下降至小于LNG低温储罐(12)中LNG储存的设定工作压力,LNG低温储罐(12)中的 LNG液体经截止阀F6(8)、LNG加液机(22)进入加气设备(14)储罐内,实现对加气设备(14)加液。
- 一种使用根据权利要求1或2所述的BOG蓄能压差LNG加汽站进行再液化的方法,其特征在于,当LNG低温储罐(12)中的压力达到设定压力上限时,开启截止阀F11(18)、截止阀F12(21)、截止阀F10(13)、截止阀F9(11)、截止阀F7(9),启动BOG压缩机(16),将LNG低温储罐(12)中的BOG气体压向LNG低温储罐(12)的底部,通过LNG低温储罐(12)中LNG液体的冷能,将部分BOG气体吸冷液化。
- 一种使用根据权利要求1或2所述的BOG蓄能压差LNG加汽站进行蓄能的方法,其特征在于,当BOG缓冲罐(19)的工作压力达到设定压力上限时,BOG压缩机(16)自动启动,将BOG缓冲罐(19)中的BOG气体压入到BOG储存罐(15)中储存,储存在BOG储存罐(15)中的BOG气体作为对LNG槽(1)、LNG低温储罐(12)的增压气源。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680000767.1A CN107076358B (zh) | 2015-08-24 | 2016-03-31 | 用bog蓄能压差lng加气站卸车、加液、再液化及蓄能的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510520177.9 | 2015-08-24 | ||
CN201510520177.9A CN106481974A (zh) | 2015-08-24 | 2015-08-24 | 一种bog蓄能压差lng加气站 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017031986A1 true WO2017031986A1 (zh) | 2017-03-02 |
Family
ID=58099383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2016/077938 WO2017031986A1 (zh) | 2015-08-24 | 2016-03-31 | 一种bog蓄能压差lng加气站 |
Country Status (2)
Country | Link |
---|---|
CN (2) | CN106481974A (zh) |
WO (1) | WO2017031986A1 (zh) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107327697A (zh) * | 2017-08-14 | 2017-11-07 | 青岛锐丰源化工有限公司 | 瓦斯气和液化气的卸车*** |
CN107687571A (zh) * | 2017-09-21 | 2018-02-13 | 长春燃气热力设计研究院有限责任公司 | 一种压缩天然气母站加气柱放空天然气回收装置及方法 |
CN107816631A (zh) * | 2017-11-20 | 2018-03-20 | 成都华气厚普机电设备股份有限公司 | 一种lng复用装置 |
CN108916645A (zh) * | 2018-09-11 | 2018-11-30 | 江苏秋林特能装备股份有限公司 | 深冷液体无损充装站 |
CN109027662A (zh) * | 2018-07-12 | 2018-12-18 | 杰瑞石油天然气工程有限公司 | 一种lng/l-cng橇装加气站 |
CN110081308A (zh) * | 2019-05-30 | 2019-08-02 | 河南查瑞特种设备有限公司 | 一种便于取用的lng卸车装置 |
CN110553141A (zh) * | 2019-08-12 | 2019-12-10 | 洛阳黎明大成氟化工有限公司 | 一种高纯气体充装***及其使用方法 |
CN115468111A (zh) * | 2022-08-30 | 2022-12-13 | 赵海丽 | 一种新型lng/l-cng加气站柱塞泵撬 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107559580A (zh) * | 2017-10-16 | 2018-01-09 | 苏州工业园区服务外包职业学院 | 一种用于接收站lng槽车超装卸载的装置 |
CN108506721B (zh) * | 2018-04-25 | 2023-10-10 | 天津良华新能源科技股份有限公司 | 一种具有组合式储罐的加气站 |
CN108426166A (zh) * | 2018-05-15 | 2018-08-21 | 张家港艾普能源装备有限公司 | 自动调压lng加液*** |
FR3086993B1 (fr) * | 2018-10-09 | 2021-11-26 | Air Liquide | Procede et installation de stockage et de distribution d'hydrogene liquefie |
CN110410665B (zh) * | 2019-08-19 | 2024-03-01 | 连云港市拓普科技发展有限公司 | 一种低温液化气体槽车卸车*** |
US20220113086A1 (en) * | 2020-10-13 | 2022-04-14 | Galileo Technologies Corp. | Integrated modular system for transfer, storage, and delivery of liquefied natural gas (lng) |
CN115479421A (zh) * | 2021-06-15 | 2022-12-16 | 中集安瑞科能源装备(苏州)有限公司 | 冷能蓄存、回收和供应的运行*** |
US20230160533A1 (en) * | 2021-11-23 | 2023-05-25 | L'air Liquide, Societe Anonyme Pour L'etude Et L?Exploitation Des Procedes Georges Claude | Liquid hydrogen trailer loading procedure for hydrogen and refrigeration recovery |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102155615A (zh) * | 2011-01-24 | 2011-08-17 | 成都深冷科技有限公司 | 具有bog回收功能的lng无泵加气方法及设备 |
CN103062620A (zh) * | 2013-01-24 | 2013-04-24 | 成都深冷液化设备股份有限公司 | 一种低温bog气体冷量回收装置及工艺 |
EP2623414A1 (en) * | 2010-09-30 | 2013-08-07 | Mitsubishi Heavy Industries, Ltd. | Boil-off gas reliquefaction device |
CN103672394A (zh) * | 2013-12-02 | 2014-03-26 | 青岛捷能高新技术有限责任公司 | 一种无泵lng加气***及液化天然气处理方法 |
WO2015048420A1 (en) * | 2013-09-27 | 2015-04-02 | Excelerate Energy Limited Partnership | Apparatus, system and method for the capture, utilization and sendout of latent heat in boil off gas onboard a cryogenic storage vessel |
CN104806879A (zh) * | 2015-04-22 | 2015-07-29 | 四川金科深冷设备工程有限公司 | Lng加气站bog回收*** |
CN205014033U (zh) * | 2015-08-24 | 2016-02-03 | 四川众信燃气设备有限公司 | 一种bog蓄能压差lng加气站 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102913752B (zh) * | 2012-11-14 | 2014-03-05 | 张家港富瑞特种装备股份有限公司 | 一种撬装式加液站的卸车、加液装置及卸车、加液方法 |
JP6116936B2 (ja) * | 2013-02-28 | 2017-04-19 | 三菱重工業株式会社 | 液化ガス気化方法、液化ガス気化システム、これを搭載した洋上浮体構造物 |
CN103511830B (zh) * | 2013-10-25 | 2015-05-06 | 泸州华坤石油化工装备有限公司 | Lng撬装站及其控制方法 |
CN204062466U (zh) * | 2014-08-08 | 2014-12-31 | 武汉武船重型装备工程有限责任公司 | 一种水上lng加注站 |
-
2015
- 2015-08-24 CN CN201510520177.9A patent/CN106481974A/zh active Pending
-
2016
- 2016-03-31 CN CN201680000767.1A patent/CN107076358B/zh active Active
- 2016-03-31 WO PCT/CN2016/077938 patent/WO2017031986A1/zh active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2623414A1 (en) * | 2010-09-30 | 2013-08-07 | Mitsubishi Heavy Industries, Ltd. | Boil-off gas reliquefaction device |
CN102155615A (zh) * | 2011-01-24 | 2011-08-17 | 成都深冷科技有限公司 | 具有bog回收功能的lng无泵加气方法及设备 |
CN103062620A (zh) * | 2013-01-24 | 2013-04-24 | 成都深冷液化设备股份有限公司 | 一种低温bog气体冷量回收装置及工艺 |
WO2015048420A1 (en) * | 2013-09-27 | 2015-04-02 | Excelerate Energy Limited Partnership | Apparatus, system and method for the capture, utilization and sendout of latent heat in boil off gas onboard a cryogenic storage vessel |
CN103672394A (zh) * | 2013-12-02 | 2014-03-26 | 青岛捷能高新技术有限责任公司 | 一种无泵lng加气***及液化天然气处理方法 |
CN104806879A (zh) * | 2015-04-22 | 2015-07-29 | 四川金科深冷设备工程有限公司 | Lng加气站bog回收*** |
CN205014033U (zh) * | 2015-08-24 | 2016-02-03 | 四川众信燃气设备有限公司 | 一种bog蓄能压差lng加气站 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107327697A (zh) * | 2017-08-14 | 2017-11-07 | 青岛锐丰源化工有限公司 | 瓦斯气和液化气的卸车*** |
CN107327697B (zh) * | 2017-08-14 | 2023-07-07 | 青岛锐丰源化工有限公司 | 瓦斯气和液化气的卸车*** |
CN107687571A (zh) * | 2017-09-21 | 2018-02-13 | 长春燃气热力设计研究院有限责任公司 | 一种压缩天然气母站加气柱放空天然气回收装置及方法 |
CN107816631A (zh) * | 2017-11-20 | 2018-03-20 | 成都华气厚普机电设备股份有限公司 | 一种lng复用装置 |
CN109027662A (zh) * | 2018-07-12 | 2018-12-18 | 杰瑞石油天然气工程有限公司 | 一种lng/l-cng橇装加气站 |
CN108916645A (zh) * | 2018-09-11 | 2018-11-30 | 江苏秋林特能装备股份有限公司 | 深冷液体无损充装站 |
CN110081308A (zh) * | 2019-05-30 | 2019-08-02 | 河南查瑞特种设备有限公司 | 一种便于取用的lng卸车装置 |
CN110081308B (zh) * | 2019-05-30 | 2024-05-31 | 天津金亿达新能源科技发展有限公司 | 一种便于取用的lng卸车装置 |
CN110553141A (zh) * | 2019-08-12 | 2019-12-10 | 洛阳黎明大成氟化工有限公司 | 一种高纯气体充装***及其使用方法 |
CN115468111A (zh) * | 2022-08-30 | 2022-12-13 | 赵海丽 | 一种新型lng/l-cng加气站柱塞泵撬 |
Also Published As
Publication number | Publication date |
---|---|
CN107076358B (zh) | 2019-06-14 |
CN107076358A (zh) | 2017-08-18 |
CN106481974A (zh) | 2017-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017031986A1 (zh) | 一种bog蓄能压差lng加气站 | |
CN205014033U (zh) | 一种bog蓄能压差lng加气站 | |
CN203162531U (zh) | 一种船舶动力装置的高压燃气供给*** | |
CN103672394B (zh) | 一种无泵lng加气***及液化天然气处理方法 | |
CN204345267U (zh) | 一种小型lng加气站储罐bog回收装置 | |
CN202252834U (zh) | 趸船lng加气站 | |
CN105179930B (zh) | 液化天然气和压缩天然气合建站的液化天然气槽车卸车装置及应用 | |
CN111457246A (zh) | 一种储氢型加氢站 | |
CN206459008U (zh) | 闪蒸汽回收装置 | |
CN202561436U (zh) | 液化天然气加气站闪蒸气回收装置 | |
CN102425725B (zh) | 用于回收lng储罐内的bog的***及方法 | |
CN105020574A (zh) | 一种l-cng加气站 | |
CN205781982U (zh) | Lng加注站无泵卸车、加注及充装*** | |
CN202327654U (zh) | 用于回收lng储罐内的bog的*** | |
CN207394353U (zh) | 一种压差式lng槽车充装*** | |
CN204987650U (zh) | 一种bog回收液化lng***装置 | |
CN204062467U (zh) | 一种lng加注趸船天然气液化循环*** | |
RU127166U1 (ru) | Газозаправочная станция | |
CN206346845U (zh) | Bog用作船用双燃料发动机补充燃料供气*** | |
CN108799827A (zh) | 一种bog回收再利用装置 | |
CN206346844U (zh) | 船用lng复合供气*** | |
CN212430438U (zh) | 一种bog回收装置 | |
CN205137064U (zh) | 液化天然气和压缩天然气合建站的液化天然气槽车卸车装置 | |
CN104819378B (zh) | 液化天然气汽车加液装置 | |
CN204083795U (zh) | 一种天然气槽车余液余气回收*** |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16838249 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16838249 Country of ref document: EP Kind code of ref document: A1 |