CN107676623A - A kind of differential LNG loading systems - Google Patents

A kind of differential LNG loading systems Download PDF

Info

Publication number
CN107676623A
CN107676623A CN201711076601.0A CN201711076601A CN107676623A CN 107676623 A CN107676623 A CN 107676623A CN 201711076601 A CN201711076601 A CN 201711076601A CN 107676623 A CN107676623 A CN 107676623A
Authority
CN
China
Prior art keywords
storage tank
tank
filling station
pipe
phase
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.)
Granted
Application number
CN201711076601.0A
Other languages
Chinese (zh)
Other versions
CN107676623B (en
Inventor
郑跃华
吴卫东
林晓辉
杨孟超
唐红
田丽军
代丰
张敏
白鸥
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.)
Chengdu Huaqi Houpu Holding Co Ltd
Original Assignee
Chengdu Huaqi Houpu Holding 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 Chengdu Huaqi Houpu Holding Co Ltd filed Critical Chengdu Huaqi Houpu Holding Co Ltd
Priority to CN201711076601.0A priority Critical patent/CN107676623B/en
Publication of CN107676623A publication Critical patent/CN107676623A/en
Application granted granted Critical
Publication of CN107676623B publication Critical patent/CN107676623B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under 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
    • 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
    • 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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0157—Compressors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Abstract

The invention discloses a kind of differential LNG loading systems, and it includes tank car storage tank, filling station storage tank and target storage tank；LNG, which is provided with, between the tank car storage tank and filling station storage tank fills pipe-line system one, gas filling pipe-line system one and pressure regulation pipe-line system one；LNG, which is provided with, between the filling station storage tank and target storage tank fills pipe-line system two, gas filling pipe-line system two and pressure regulation pipe-line system two；LNG, which is provided with, between the tank car storage tank and target storage tank fills pipe-line system three and pressure regulation pipe-line system three；Three pressure regulation pipe-line systems share the pressure difference between compressor two storage tanks of regulation；The LNG in high pressure storage tank is set to inject in low pressure storage tank, the system can simplify LNG filling technique, reduce LNG losses of unloading, save the energy, reach BOG zero-emissions, reduce LNG filling station operation costs.

Description

A kind of differential LNG loading systems
Technical field
The present invention relates to LNG to fill field, refers in particular to a kind of differential LNG loading systems.
Background technology
The fast development of World Economics, quick increase of the world to energy demand is triggered.Natural gas is with its cleaning, side Just, efficient characteristic turns into Substitute coal, the most suitable high-quality novel energy of oil.Will with the rise and discharge of international oil price Ask increasingly strict, the use of natural gas turns into the inexorable trend in each field.
Existing LNG filling fills all by the way of force (forcing) pump improves LNG discharge pressures to target tank at present；This Kind of mode fills complex procedures, force (forcing) pump consumption power is big, the filling time is long, filling station BOG amounts are big, LNG be lost it is larger.
The content of the invention
The purpose of invention is：For above-mentioned problem, there is provided a kind of differential LNG loading systems, can simplify LNG filling technique, LNG losses of unloading are reduced, the energy is saved, reaches BOG zero-emissions, reduces LNG filling station operation costs.
The technical solution adopted by the present invention is as follows：
A kind of differential LNG loading systems, it includes tank car storage tank, filling station storage tank and target storage tank；
LNG is provided between the tank car storage tank and filling station storage tank to fill pipe-line system one, gas filling pipe-line system one and adjust Hydraulic pipe one；The LNG fill pipe-line system one, gas filling pipe-line system one and pressure regulation pipe-line system one respectively with Tank car storage tank is connected with filling station storage tank；The pressure regulation pipe-line system one, for adjusting between filling station storage tank and tank car storage tank Pressure difference, the pressure for allowing the pressure in tank car storage tank to be more than in filling station storage tank, makes the LNG in tank car storage tank pass through LNG filling tubes Road system one is sent to filling station storage tank, the gas in tank car storage tank is sent to filling station by gas filling pipe-line system one and stores up Tank；
LNG is provided between the filling station storage tank and target storage tank to fill pipe-line system two, gas filling pipe-line system two and adjust Hydraulic pipe two；The LNG fill pipe-line system two, gas filling pipe-line system two and pressure regulation pipe-line system two respectively with Filling station storage tank is connected with Target Station storage tank；The pressure regulation pipe-line system two, for adjusting between filling station storage tank and target storage tank Pressure difference, the pressure for allowing the pressure in filling station storage tank to be more than in target storage tank, the LNG in filling station storage tank is filled by LNG Dress pipe-line system two is sent to target storage tank, the gas in the filling station storage tank is sent to mesh by gas filling pipe-line system two Mark storage tank；
LNG, which is provided with, between the tank car storage tank and target storage tank fills pipe-line system three and pressure regulation pipe-line system three；The LNG fills Dress pipe-line system three and pressure regulation pipe-line system three are connected with tank car storage tank and target storage tank respectively；The pressure regulation pipe-line system Three, for adjusting the pressure difference between tank car storage tank and target storage tank, the pressure that allows the pressure in tank car tank to be more than in target storage tank makes LNG in tank car storage tank fills pipe-line system three by LNG and is sent to target storage tank.
Due to said structure, by adjusting the pressure difference between two storage tanks, the pressure in feed flow storage tank is set to be more than by liquid storage tank Pressure, the LNG in high pressure storage tank is depressed into low pressure storage tank using the pressure difference between two storage tanks.Replace pressurizeing using voltage-regulating system Pump, the precooling process of force (forcing) pump can be saved, the time required to reducing precooling, improve filling efficiency.Because LNG belongs to high pressure liquid Body, and can be dangerous in precooling process, and the present invention can avoid the danger brought in force (forcing) pump precooling process.It is meanwhile existing Have in technology, pressurizeed using force (forcing) pump, can produce substantial amounts of BOG gases, and these BOG gases, it typically can all diffuse air In, the waste of the energy is caused, and BOG amounts are excessive in storage tank, and tank inner pressure can be caused too high, it is next dangerous to LNG storage tape. And the pressure difference between two storage tanks is adjusted by voltage-regulating system, then substantial amounts of BOG gases will not be produced, save the energy, ensure LNG Storage safety.
Further, the pressure regulation pipe-line system one includes compressor, and the compressor passes through pipeline and valve connectivity slot Car storage tank and filling station storage tank；
The LNG fills the tank car storage tank that pipe-line system one and gas filling tube road system one include connecting with valve by pipeline With filling station storage tank；
The compressor is used to adjust the pressure difference between tank car storage tank and filling station storage tank, and the pressure allowed in tank car storage tank is more than filling The pressure stood in storage tank；The LNG in tank car storage tank is filled pipe-line system one by LNG and be sent to filling station storage tank, store up tank car Gas in tank is sent to filling station storage tank by gas filling pipe-line system one；
The pressure regulation pipe-line system two includes compressor, and the compressor connects filling station storage tank and target with valve by pipeline Storage tank；
The filling station that the LNG fills pipe-line system two with gas filling tube road system two includes connecting with valve by pipeline stores up Tank and target storage tank；
The compressor is used to adjust the pressure difference between filling station storage tank and target storage tank, and the pressure allowed in filling station storage tank is more than mesh Mark the pressure in storage tank；The LNG in filling station storage tank is filled pipe-line system two by LNG and be sent to target storage tank, make filling station Gas in storage tank is sent to target storage tank by gas filling pipe-line system two；
The pressure regulation pipe-line system two includes compressor, and the compressor connects filling station storage tank and target with valve by pipeline Storage tank；
The pressure regulation pipe-line system three includes compressor, and the compressor connects tank car storage tank and target storage by pipeline with valve Tank；
The LNG fills the tank car storage tank and target storage tank that pipe-line system three includes connecting with valve by pipeline；
The compressor is used to adjust the pressure difference between tank car storage tank and target storage tank, and the pressure allowed in tank car storage tank is stored up more than target Pressure in tank；The LNG in tank car storage tank is filled pipe-line system three by LNG and be sent to target storage tank.
Due to said structure, the pressure difference between two storage tanks is adjusted by compressor, power during compressor operating is more than adding The power of press pump is small, and the power of force (forcing) pump is 11KW, and compressor is 3~4KW, and the energy consumed during compressor operating substantially drops It is low.Also need to consider force (forcing) pump and feed flow storage tank and the position relationship between by liquid storage tank using force (forcing) pump, under hyperbaric environment, if installation Position is improper, can bring very big danger；And compression extraction air is utilized, the gas in a storage tank is evacuated in another storage tank, To adjust the mode of two storage tank pressure differences, it is not necessary to consider force (forcing) pump and feed flow storage tank and the position relationship between by liquid storage tank, be easy to Installation, it is easy to use.
Meanwhile a compressor is shared between three storage tanks, pipeline structure is optimized, saves voltage adjusting device usage quantity, Manufacturing cost is saved, the equipment of independent dispersion is combined, is easy to control and safeguards.
Further, the pressure regulation pipe-line system one include filling station storage tank, filling station storage tank gas phase pipe one, compressor, Tank car storage tank forcing pipe, tank car storage tank liquid-phase tube one, tank car storage tank gas phase pipe and tank car storage tank；
Wherein, the one end of filling station storage tank gas phase pipe one is connected with filling station storage tank gas phase mouth one, the other end and compressor inlet It is connected, the filling station storage tank gas phase pipe one is provided with filling station storage tank gas valve one at filling station storage tank gas phase mouth one, Compressor inlet is provided with filling station storage tank gas valve three；Described tank car storage tank forcing pipe one end and compressor outlet It is connected, the other end is connected with tank car storage tank liquid-phase tube one and tank car storage tank gas phase pipe respectively；The tank car storage tank liquid-phase tube one connects It is connected to tank car storage tank liquid phase mouth one；The tank car storage tank gas phase pipe is connected to tank car storage tank gas phase mouth；The tank car storage tank liquid phase Tank car storage tank liquid phase valve one is provided with pipe one, tank car storage tank gas valve is provided with tank car storage tank gas phase pipe；
The LNG fill pipe-line system one include tank car storage tank, tank car storage tank liquid-phase tube two, filling station storage tank gas phase pipe two, plus Note station storage tank liquid-phase tube two and filling station storage tank；
Wherein one end of tank car storage tank liquid-phase tube two is connected with tank car storage tank liquid phase mouth two, the other end respectively with filling station storage tank gas Phase pipe two is connected with filling station storage tank liquid-phase tube two, and the filling station storage tank gas phase pipe two is connected to filling station storage tank gas phase mouth Two, filling station storage tank liquid-phase tube two is connected to filling station storage tank liquid phase mouth two；
Filling station storage tank gas valve two is provided with the filling station storage tank gas phase pipe two, is set on filling station storage tank liquid-phase tube two There is filling station storage tank liquid phase valve two；Tank car storage tank liquid phase valve two is provided with tank car storage tank liquid-phase tube two；
The gas filling pipe-line system one includes tank car storage tank, tank car storage tank liquid-phase tube two, trimmer valve one, surge tank, buffering Valve two, switching valve two, compressor, switching valve one, filling station storage tank gas phase pipe one, filling station storage tank liquid-phase tube one and filling station storage Tank；
Described one end of tank car storage tank liquid-phase tube two is connected with tank car storage tank liquid phase mouth two, and the other end is connected with trimmer valve one, described Trimmer valve one is connected to surge tank；The surge tank is connected to the entrance point of compressor by trimmer valve two and switching valve two；Institute The port of export for stating compressor is connected with filling station storage tank gas phase pipe one and filling station storage tank liquid-phase tube one respectively；The filling station storage Tank gas phase pipe one is connected to filling station storage tank gas phase mouth one, and filling station storage tank liquid-phase tube one is connected to filling station storage tank liquid phase mouth One；The filling station storage tank gas phase pipe one is provided with filling station storage tank gas valve one at filling station storage tank gas phase mouth one, leans on Nearly compressor inlet is provided with filling station storage tank gas valve three, and the compressor outlet is stored up by switching valve one and filling station Tank gas phase pipe one is connected, and the switching valve one and the tie point of filling station storage tank gas phase pipe one are located at filling station storage tank gas valve one Between filling station storage tank gas phase pipe valve three；Filling station storage tank liquid phase valve one is provided with the filling station storage tank liquid-phase tube one.
Further, the pressure regulation pipe-line system two includes target storage tank, target storage tank gas phase pipe, compressor, filling station Storage tank liquid-phase tube one, filling station storage tank；
Wherein, target storage tank gas phase pipe one end is connected with target storage tank gas phase mouth, and the other end is entered by switching valve two with compressor Mouth end is connected, and target storage tank gas valve is provided with the target storage tank gas phase pipe；Described one end of filling station storage tank liquid-phase tube one It is connected with compressor outlet, the other end is connected with filling station storage tank liquid phase mouth one；Set on the filling station storage tank liquid-phase tube one It is equipped with filling station storage tank liquid phase valve one.
The LNG, which fills pipe-line system two, includes filling station storage tank, filling station storage tank liquid-phase tube two, trimmer valve one, buffering Tank, target storage tank liquid-phase tube, target storage tank；
Wherein, the one end of filling station storage tank liquid-phase tube two is connected with filling station storage tank liquid phase mouth two, and the other end is connected with trimmer valve one, The trimmer valve one is connected to surge tank；Filling station storage tank liquid phase valve two is provided with the filling station storage tank liquid-phase tube two；Institute State target storage tank liquid-phase tube one end with surge tank to be connected, the other end is connected with target storage tank liquid phase mouth；The target storage tank liquid phase Target storage tank liquid phase valve is provided with pipe.
The gas filling pipe-line system two includes filling station storage tank, filling station storage tank gas phase pipe one, compressor, blow down valve First, target storage tank gas phase pipe, target storage tank；
Wherein, the one end of filling station storage tank gas phase pipe one is connected with filling station storage tank gas phase mouth, the other end and compressor inlet phase Even, the compressor outlet is connected by blow down valve one with target storage tank gas phase pipe, and the target storage tank gas phase pipe is connected to Target storage tank gas phase mouth.
Further, the pressure regulation pipe-line system three includes target storage tank, target storage tank gas phase pipe, switching valve two, compression Machine, tank car storage tank forcing pipe, tank car storage tank gas phase pipe, tank car storage tank liquid-phase tube one and tank car storage tank；
Wherein, target storage tank gas phase pipe one end is connected with target storage tank gas phase mouth, and the other end is entered by switching valve two with compressor Mouthful end is connected, and described tank car storage tank forcing pipe one end is connected with compressor outlet, the other end respectively with tank car storage tank liquid-phase tube One is connected with tank car storage tank gas phase pipe；The tank car storage tank liquid-phase tube one is connected to tank car storage tank liquid phase mouth one；The tank car storage Tank gas phase pipe is connected to tank car storage tank gas phase mouth；Tank car storage tank liquid phase valve one, groove are provided with the tank car storage tank liquid-phase tube one Tank car storage tank gas valve is provided with car storage tank gas phase pipe.
The LNG, which fills pipe-line system three, includes tank car storage tank, tank car storage tank liquid-phase tube two, trimmer valve, surge tank, target Storage tank liquid-phase tube, target storage tank；
Wherein, the one end of tank car storage tank liquid-phase tube two is connected with tank car storage tank liquid phase mouth two, and the other end is connected with trimmer valve, described slow Rush valve and be connected to surge tank；Tank car storage tank liquid phase valve two is provided with the tank car storage tank liquid-phase tube two；The target storage tank liquid Phase pipe one end is connected with surge tank, and the other end is connected with target storage tank liquid phase mouth；Mesh is provided with the target storage tank liquid-phase tube Mark storage tank liquid phase valve.
Further, tank car storage tank pressure piping system is connected with the tank car storage tank, the tank car storage tank increases pipeline Pressure system is during tank car storage tank fills LNG to filling station storage tank or target storage tank, for tank car pressure of storage tank to be maintained In setting range；The tank car storage tank pressure piping system includes tank car storage tank, tank car storage tank liquid-phase tube two, vaporizer, slow Rush tank, compressor, tank car storage tank forcing pipe, tank car storage tank gas phase pipe；
Liquid LNG in tank car storage tank is flowed into by tank car storage tank liquid-phase tube two and vaporized after the outflow of tank car storage tank liquid phase mouth two Device, by after liquid LNG vaporization, LNG flows through surge tank, compressor, tank car storage tank and added the vaporizer successively in the form of a vapor After pressure pipe, tank car storage tank gas phase pipe, returned to from tank car storage tank gas phase mouth in tank car storage tank.
Due to said structure, tank car storage tank pressure pipeline system can be when tank car storage tank fills LNG to filling station storage tank Pressurization, ensure the pressure difference between storage tank, beneficial to LNG conveying.
Further, the filling station storage tank also includes filling station storage tank pressure piping system；The filling station storage tank increases Pipeline presses system to be set during filling station storage tank fills LNG to target storage tank for filling station pressure of storage tank to be maintained Determine in scope；The filling station storage tank pressure piping system include filling station storage tank, filling station storage tank liquid-phase tube two, vaporizer, Surge tank, compressor, switching valve one, filling station storage tank gas phase pipe one；
The LNG flowed out from filling station storage tank liquid phase mouth two, vaporizer is flowed into through filling station storage tank liquid-phase tube two, LNG is through vaporizer After vaporization, surge tank, compressor, switching valve, filling station storage tank gas phase Guan Yihou are passed sequentially through, from filling station storage tank gas phase mouth one Return in filling station storage tank.
Due to said structure, filling station storage tank pressure piping system can fill LNG in filling station storage tank to target storage tank When pressurize, ensure storage tank between pressure difference, beneficial to LNG conveying.
Further, filling station target storage tank scavenging pipeline system is additionally provided between filling station storage tank and target storage tank；Institute State filling station target storage tank scavenging pipeline system include filling station storage tank, filling station storage tank gas phase pipe two, trimmer valve, surge tank, Blow down valve two, target storage tank liquid-phase tube, target storage tank；
The gas flowed out from filling station storage tank gas phase mouth two, through filling station storage tank gas phase pipe two, buffering pipe valve, surge tank, purging After valve two, target storage tank liquid-phase tube, LNG is filled to the LNG remained in pipe-line system two and is blown into target from target storage tank liquid phase mouth In storage tank.
Further, tank car target storage tank scavenging pipeline system is additionally provided between tank car storage tank and target storage tank；The groove Car target storage tank scavenging pipeline system includes tank car storage tank, tank car storage tank gas phase pipe, tank car storage tank forcing pipe, blow down valve one, blown Sweep valve two, target storage tank liquid-phase tube, target storage tank；
From the gas of tank car storage tank gas phase mouth outflow, successively by tank car storage tank gas phase pipe, tank car storage tank forcing pipe, blow down valve First, after blow down valve two, target storage tank liquid-phase tube, LNG is filled to the LNG remained in pipe-line system three and blown from target storage tank liquid phase mouth Enter in target storage tank.
Due to the presence of scavenging pipeline system, LNG can be made sufficiently to be filled with by liquid storage tank, reduce feed flow storage tank BOG amounts, reduce filling station operation cost.
It is the pressure that purge gas is improved using force (forcing) pump and vaporizer that existing LNG, which fills pipeline purging, and then makes gas Body transports in pipeline；Because gas pressure is too high, during purging, surge tank is must be provided with pipeline.And of the invention, gas transport It is due to be realized by the pressure difference of two storage tanks, it is not necessary to which the purge gas in aerating pipeline is pressurizeed；Therefore purge When, surge tank need not be set in aerating pipeline, it is cost-effective.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
Pressure difference between the present invention two storage tanks of regulation replaces force (forcing) pump to fill LNG, can simplify process, in filling process Force (forcing) pump precooling is not needed, saves pre-coo time, improves filling efficiency；The position being easy to simultaneously between storage tank is arbitrarily set；Using Compressor replaces force (forcing) pump, can reduce power consumption, saves electric energy.In aerating pipeline purge, it is not necessary to set slow Tank is rushed, it is cost-effective.Tank car can be unloaded to the gases at high pressure after the completion of liquid to fill in filling station storage tank, tank car is reduced and unload LNG is lost, and saves the energy.Filling station reservoir gas can be filled in target storage tank, reach filling station BOG zero-emissions, dropped Low filling station operation cost.The present invention, a compressor is shared between three storage tanks, pipeline structure is optimized, saves pressure regulation and set Standby usage quantity, saves manufacturing cost, the equipment of independent dispersion is combined, be easy to control and safeguard.
Brief description of the drawings
Fig. 1 is the pipe-line system structure chart of the present invention；
Marked in figure：1- filling station storage tanks liquid-phase tube one, 101- filling station storage tanks liquid phase valve one, 2- filling station storage tank gas phase pipes One, 201- filling station storage tank gas valve one, 202- filling station storage tanks gas valve three, 3- filling station storage tanks liquid-phase tube two, 301- adds Note station storage tank liquid phase valve two, 4- filling station storage tank gas phases pipe two, 401- filling station storage tanks gas valve two, 5- tank car storage tank liquid-phase tubes One, 501- tank car storage tank liquid phase valve one, 6- tank car storage tank gas phase pipes, 601- tank car storage tank gas valves, 7- tank car storage tank liquid-phase tubes Two, 701- tank car storage tank liquid phase valve two, 8- target storage tank gas phase pipes, 801- target storage tank gas valves, 9- target storage tank liquid-phase tubes, 901- target storage tank liquid phase valves, 10- compressors, 11- vaporizers, 1201- switching valves one, 1202- switching valves two, 1301- purgings Valve one, 1302- blow down valves two, 1401- trimmer valves one, 1402- trimmer valves two, 15- tank car storage tank forcing pipes.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
A kind of differential LNG loading systems, it includes tank car storage tank, filling station storage tank and target storage tank；
LNG is provided between the tank car storage tank and filling station storage tank to fill pipe-line system one, gas filling pipe-line system one and adjust Hydraulic pipe one；The LNG fill pipe-line system one, gas filling pipe-line system one and pressure regulation pipe-line system one respectively with Tank car storage tank is connected with filling station storage tank；The pressure regulation pipe-line system one, for adjusting between filling station storage tank and tank car storage tank Pressure difference, the pressure for allowing the pressure in tank car storage tank to be more than in filling station storage tank, makes the LNG in tank car storage tank pass through LNG filling tubes Road system one is sent to filling station storage tank, the gas in tank car storage tank is sent to filling station by gas filling pipe-line system one and stores up Tank；
LNG is provided between the filling station storage tank and target storage tank to fill pipe-line system two, gas filling pipe-line system two and adjust Hydraulic pipe two；The LNG fill pipe-line system two, gas filling pipe-line system two and pressure regulation pipe-line system two respectively with Filling station storage tank is connected with Target Station storage tank；The pressure regulation pipe-line system two, for adjusting between filling station storage tank and target storage tank Pressure difference, the pressure for allowing the pressure in filling station storage tank to be more than in target storage tank, the LNG in filling station storage tank is filled by LNG Dress pipe-line system two is sent to target storage tank, the gas in the filling station storage tank is sent to mesh by gas filling pipe-line system two Mark storage tank；
LNG, which is provided with, between the tank car storage tank and target storage tank fills pipe-line system three and pressure regulation pipe-line system three；The LNG fills Dress pipe-line system three and pressure regulation pipe-line system three are connected with tank car storage tank and target storage tank respectively；The pressure regulation pipe-line system Three, for adjusting the pressure difference between tank car storage tank and target storage tank, the pressure that allows the pressure in tank car tank to be more than in target storage tank makes LNG in tank car storage tank fills pipe-line system three by LNG and is sent to target storage tank.
The pressure regulation pipe-line system one includes compressor 10, and the compressor 10 connects tank car storage tank with valve by pipeline With filling station storage tank；
The LNG fills the tank car storage tank that pipe-line system one and gas filling tube road system one include connecting with valve by pipeline With filling station storage tank；
The compressor 10 is used to adjust pressure difference between tank car storage tank and filling station storage tank, allow the pressure in tank car storage tank be more than plus Pressure in the storage tank of note station；The LNG in tank car storage tank is filled pipe-line system one by LNG and be sent to filling station storage tank, make tank car Gas in storage tank is sent to filling station storage tank by gas filling pipe-line system one；
The pressure regulation pipe-line system two includes compressor 10, the compressor 10 connected by pipeline with valve filling station storage tank and Target storage tank；
The filling station that the LNG fills pipe-line system two with gas filling tube road system two includes connecting with valve by pipeline stores up Tank and target storage tank；
The compressor 10 is used to adjust the pressure difference between filling station storage tank and target storage tank, and the pressure allowed in filling station storage tank is more than Pressure in target storage tank；The LNG in filling station storage tank is filled pipe-line system two by LNG and be sent to target storage tank, make filling The gas stood in storage tank is sent to target storage tank by gas filling pipe-line system two；
The pressure regulation pipe-line system two includes compressor 10, the compressor 10 connected by pipeline with valve filling station storage tank and Target storage tank；
The pressure regulation pipe-line system three includes compressor 10, and the compressor 10 connects tank car storage tank and mesh with valve by pipeline Mark storage tank；
The LNG fills the tank car storage tank and target storage tank that pipe-line system three includes connecting with valve by pipeline；
The compressor 10 is used to adjust the pressure difference between tank car storage tank and target storage tank, and the pressure allowed in tank car storage tank is more than target Pressure in storage tank；The LNG in tank car storage tank is filled pipe-line system three by LNG and be sent to target storage tank.
The pressure regulation pipe-line system one includes filling station storage tank, filling station storage tank gas phase pipe 1, compressor 10, tank car storage Tank forcing pipe 15, tank car storage tank liquid-phase tube 1, tank car storage tank gas phase pipe 6 and tank car storage tank；
Wherein, the one end of filling station storage tank gas phase pipe 1 is connected with filling station storage tank gas phase mouth one, the other end and the import of compressor 10 End is connected, and the filling station storage tank gas phase pipe 1 is provided with filling station storage tank gas valve at filling station storage tank gas phase mouth one One 201, the entrance point of compressor 10 is provided with filling station storage tank gas valve 3 202；Described one end of tank car storage tank forcing pipe 15 It is connected with the port of export of compressor 10, the other end is connected with tank car storage tank liquid-phase tube 1 and tank car storage tank gas phase pipe 6 respectively；It is described Tank car storage tank liquid-phase tube 1 is connected to tank car storage tank liquid phase mouth one；The tank car storage tank gas phase pipe 6 is connected to tank car storage tank gas phase Mouthful；Tank car storage tank liquid phase valve 1 is provided with the tank car storage tank liquid-phase tube 1, groove is provided with tank car storage tank gas phase pipe 6 Car storage tank gas valve 601；
When pressure regulation pipe-line system one works,
The gas that 0.45 ~ 0.55 MPa is maintained in filling station storage tank is evacuated in tank car storage tank by compressor 10, makes tank car Pressure in storage tank rises to 0.45 ~ 0.55 MPa, and the pressure in filling station storage tank drops to 0.05 ~ 0.15MPa, stores up tank car Untill pressure differential between tank and filling station storage tank is 0.4MPa.
During pressure regulation, the gas in filling station storage tank is extracted out from filling station storage tank gas phase mouth one, successively by filling station From tank car storage tank liquid after storage tank gas valve 1, filling station storage tank gas phase three, compressor 10, tank car storage tank liquid phase valve 1 Phase mouth one enters in tank car storage tank；After the pressure value of filling station storage tank drops to 0.15 ~ 0.25MPa, tank car storage tank liquid phase valve One 501 close, and open tank car storage tank gas valve, gas is entered from tank car storage tank gas phase mouth in tank car storage tank, make tank car storage tank Pressure is more than filling station pressure of storage tank value, until the pressure in tank car storage tank rises to 0.45 ~ 0.55 MPa, make tank car storage tank with Untill pressure differential between filling station storage tank is 0.4MPa.
In said process, the gas that filling station storage tank comes out enters tank car in a gaseous form by tank car storage tank liquid phase mouth one Supercooling liquefaction in storage tank, declines filling station tank internal pressure, because LNG is in a liquid state, its small volume, therefore tank car storage tank Internal pressure slowly rises；Gas volume is bigger than gas volume in tank car storage tank in filling station storage tank, can by the above method Ensure, filling station pressure of storage tank can be depressured completely, while ensure the safety of pressure regulation.When the pressure value of filling station storage tank drops to Gas is set to improve pressure regulation speed from tank car storage tank gas phase mouth rapid pressure after setting value 0.15 ~ 0.25 again.
The LNG, which fills pipe-line system one, includes tank car storage tank, tank car storage tank liquid-phase tube 27, filling station storage tank gas phase pipe 24, filling station storage tank liquid-phase tube 23 and filling station storage tank；
Wherein one end of tank car storage tank liquid-phase tube 27 is connected with tank car storage tank liquid phase mouth two, the other end respectively with filling station storage tank Gas phase pipe 24 is connected with filling station storage tank liquid-phase tube 23, and the filling station storage tank gas phase pipe 24 is connected to filling station storage tank gas Phase mouth two, filling station storage tank liquid-phase tube 23 are connected to filling station storage tank liquid phase mouth two；
Filling station storage tank gas valve 2 401, filling station storage tank liquid-phase tube 23 are provided with the filling station storage tank gas phase pipe 24 On be provided with filling station storage tank liquid phase valve 2 301；Tank car storage tank liquid phase valve 2 701 is provided with tank car storage tank liquid-phase tube 27；
When the LNG fills the work of pipe-line system one,
The LNG in tank car storage tank is filled with filling station storage tank by pipeline and valve, and maintains tank car all the time in the process Pressure differential between storage tank and filling station storage tank is 0.4MPa, until LNG fills completion；
In LNG filling processes, the LNG in tank car storage tank flows out from tank car storage tank liquid phase mouth two, through tank car storage tank liquid phase valve two 701st, filling station storage tank is flowed into from filling station storage tank gas phase mouth two after filling station storage tank gas valve 2 401, LNG is from filling station storage tank Gas phase mouth two sprays to filling station tank inside in a manner of spray, makes the supercooling liquefaction of filling station tank inside gas, reduces filling Stand tank internal pressure, after the pressure value of filling station storage tank drops to setting value；Make LNG again through tank car storage tank liquid phase valve two 701st, filling station storage tank is flowed into from filling station storage tank liquid phase mouth two after filling station storage tank liquid phase valve 2 301.
First gas phase mouth enters and entered from liquid phase mouth, its volume can be made to diminish gas liquefaction in filling station storage tank, drops Low filling station tank internal pressure, more conducively LNG's fills.
The gas filling pipe-line system one includes tank car storage tank, tank car storage tank liquid-phase tube 27, trimmer valve 1, slow Rush tank, trimmer valve 2 1402, switching valve 2 1202, compressor 10, switching valve 1, filling station storage tank gas phase pipe 1, filling Stand storage tank liquid-phase tube 1 and filling station storage tank；
Described one end of tank car storage tank liquid-phase tube 27 is connected with tank car storage tank liquid phase mouth two, and the other end is connected with trimmer valve 1, The trimmer valve 1 is connected to surge tank；The surge tank is connected to pressure by trimmer valve 2 1402 and switching valve 2 1202 The entrance point of contracting machine 10；The port of export of the compressor 10 respectively with filling station storage tank gas phase pipe 1 and filling station storage tank liquid phase Pipe 1 is connected；The filling station storage tank gas phase pipe 1 is connected to filling station storage tank gas phase mouth one, filling station storage tank liquid-phase tube 1 It is connected to filling station storage tank liquid phase mouth one；The filling station storage tank gas phase pipe 1 is set at filling station storage tank gas phase mouth one There is filling station storage tank gas valve 1, the entrance of compressor 10 is provided with filling station storage tank gas valve 3 202, the pressure The port of export of contracting machine 10 is connected by switching valve 1 with filling station storage tank gas phase pipe 1, the switching valve 1 and filling The tie point of storage tank gas phase of standing pipe 1 is located between filling station storage tank gas valve 1 and filling station storage tank gas phase pipe valve three；Institute State and filling station storage tank liquid phase valve 1 is provided with filling station storage tank liquid-phase tube 1.
In the course of work of gas filling pipe-line system one
The gas of 0.45 ~ 0.55 MPa in tank car storage tank is filled with filling station storage tank by pipeline and valve, until tank car stores up Untill gas pressure in tank is reduced to 0.05 ~ 0.15MPa.
Gas in tank car storage tank flows out from tank car storage tank liquid phase mouth two, successively through tank car storage tank liquid phase valve 2 701, Trimmer valve 1, surge tank, trimmer valve 2 1402, switching valve 2 1202, compressor 10, switching valve 1, filling station storage Enter after tank gas valve 1 from filling station storage tank gas phase mouth one in filling station storage tank, when the pressure value increase of filling station storage tank To after setting value, gas is again from tank car storage tank liquid phase mouth two through tank car storage tank liquid phase valve 2 701, trimmer valve, surge tank, compression Machine 10, filling station storage tank liquid-phase tube 1 enter in filling station storage tank from filling station storage tank liquid phase mouth one.
First gas phase mouth enters and entered from liquid phase mouth, its volume can be made to diminish gas liquefaction in filling station storage tank, drops Low filling station tank internal pressure, more conducively gas fill.
Tank car storage tank pressure piping system is connected with the tank car storage tank, the tank car storage tank increases pipeline and presses system in groove During car storage tank fills LNG to filling station storage tank, for tank car pressure of storage tank to be maintained in setting range；The tank car Storage tank pressure piping system includes tank car storage tank, tank car storage tank liquid-phase tube 27, vaporizer 11, surge tank, compressor 10, tank car Storage tank forcing pipe 15, tank car storage tank gas phase pipe 6；
Liquid LNG in tank car storage tank is flowed into by tank car storage tank liquid-phase tube 27 and vaporized after the outflow of tank car storage tank liquid phase mouth two Device 11, for the vaporizer 11 by after liquid LNG vaporization, LNG flows through surge tank, compressor 10, tank car successively in the form of a vapor After storage tank forcing pipe 15, tank car storage tank gas phase pipe 6, returned to from tank car storage tank gas phase mouth in tank car storage tank.
The pressure regulation pipe-line system two includes target storage tank, target storage tank gas phase pipe 8, compressor 10, filling station storage tank liquid Phase pipe 1, filling station storage tank；
Wherein, the one end of target storage tank gas phase pipe 8 is connected with target storage tank gas phase mouth, and the other end passes through switching valve 2 1202 and compression The entrance point of machine 10 is connected, and target storage tank gas valve 801 is provided with the target storage tank gas phase pipe 8；The filling station storage tank liquid The one end of phase pipe 1 is connected with the port of export of compressor 10, and the other end is connected with filling station storage tank liquid phase mouth one；The filling station storage tank Filling station storage tank liquid phase valve 1 is provided with liquid-phase tube 1.
When pressure regulation pipe-line system two works,
The gas in target storage tank is evacuated in filling station storage tank by compressor 10, the pressure in target storage tank is reduced to 0.05 ~ 0.15MPa, and in the process all the time maintain filling station pressure of storage tank be 0.45 ~ 0.55 MPa, make filling station pressure of storage tank and Target pressure of storage tank difference remains 0.4MPa；
During pressure regulation, compressor 10 extracts the gas in target storage tank from target storage tank gas phase mouth out, is stored up successively by target After tank gas valve 801 1, switching valve 2 1202, compressor 10, filling station storage tank liquid phase valve 1, from filling station storage tank liquid phase Mouth one enters in filling dump tank.Filling station pressure of storage tank is more than target pressure of storage tank, make filling station pressure of storage tank and target Pressure of storage tank difference remains 0.4MPa.
The LNG fill pipe-line system two include filling station storage tank, filling station storage tank liquid-phase tube 23, trimmer valve 1, Surge tank, target storage tank liquid-phase tube 9, target storage tank；
Wherein, the one end of filling station storage tank liquid-phase tube 23 is connected with filling station storage tank liquid phase mouth two, and the other end is connected with trimmer valve, The trimmer valve 1 is connected to surge tank；Filling station storage tank liquid phase valve is provided with the filling station storage tank liquid-phase tube 23 2 301；Described one end of target storage tank liquid-phase tube 9 is connected with surge tank, and the other end is connected with target storage tank liquid phase mouth；The target Target storage tank liquid phase valve 901 is provided with storage tank liquid-phase tube 9.
When LNG is filled,
The LNG in filling station storage tank is filled with target storage tank by pipeline and valve, and maintains filling all the time in the process The MPa of pressure difference 0.4 to stand between pressure of storage tank and target storage tank, untill target storage tank is filled into the setting upper limit；
LNG in filling station storage tank 1 flows out from filling station storage tank liquid phase mouth two, through filling station storage tank liquid phase valve 2 301, trimmer valve One 1401, after surge tank, target storage tank liquid phase valve 901, target storage tank is flowed into after target storage tank liquid phase mouth.
The gas filling pipe-line system two includes filling station storage tank, filling station storage tank gas phase pipe 1, compressor 10, blown Sweep valve 1, target storage tank gas phase pipe 8, target storage tank；
Wherein, the one end of filling station storage tank gas phase pipe 1 is connected with filling station storage tank gas phase mouth, the other end and the entrance point of compressor 10 It is connected, the filling station storage tank gas phase pipe 1 is provided with filling station storage tank gas valve one at filling station storage tank gas phase mouth one 201, the entrance of compressor 10 is provided with filling station storage tank gas valve 3 202, the port of export of compressor 10 passes through purging Valve 1 is connected with target storage tank gas phase pipe 8, and the target storage tank gas phase pipe 8 is connected to target storage tank gas phase mouth.
During gas filling, pressure requirements are routinely used according to target storage tank, will by pipeline, valve and compressor 10 The MPa of filling station storage tank 0.45 ~ 0.55 gas is filled with target storage tank, reaches target storage tank routinely using untill pressure requirements.
Gas in filling station storage tank flows out from filling station storage tank gas phase mouth one, through filling station storage tank gas valve 1, After filling station storage tank gas valve 3 202, compressor 10, blow down valve 1, target storage tank gas valve 801, from target storage tank gas Phase mouth enters in target storage tank, target storage tank is met that routine uses pressure requirements.
The filling station storage tank also includes filling station storage tank pressure piping system；The filling station storage tank increases pipeline pressure system During filling station storage tank fills LNG to target storage tank, for filling station pressure of storage tank to be maintained in setting range；Institute Stating filling station storage tank pressure piping system includes filling station storage tank, filling station storage tank liquid-phase tube 23, vaporizer 11, surge tank, pressure Contracting machine 10, switching valve 1, filling station storage tank gas phase pipe 1；
The LNG flowed out from filling station storage tank liquid phase mouth two, vaporizer 11 is flowed into through filling station storage tank liquid-phase tube 23, LNG is through vaporization After device 11 vaporizes, after passing sequentially through surge tank, compressor 10, switching valve, filling station storage tank gas phase pipe 1, from filling station storage tank Gas phase mouth one is returned in filling station storage tank.
Filling station target storage tank scavenging pipeline system is additionally provided between filling station storage tank and target storage tank；The filling station mesh Marking storage tank scavenging pipeline system includes filling station storage tank, filling station storage tank gas phase pipe 24, trimmer valve, surge tank, blow down valve two 1302nd, target storage tank liquid-phase tube 9, target storage tank；
From filling station storage tank gas phase mouth two flow out gas, through filling station storage tank gas phase pipe 24, trimmer valve 1, surge tank, After blow down valve 2 1302, target storage tank liquid-phase tube 9, LNG is filled to the LNG that is remained in pipe-line system two from target storage tank liquid phase mouth It is blown into target storage tank.
The step can be such that LNG is sufficiently filled with target storage tank, reduce filling station BOG amounts, reduction filling station operation into This.
The pressure regulation pipe-line system three include target storage tank, target storage tank gas phase pipe 8, switching valve 2 1202, compressor 10, Tank car storage tank forcing pipe 15, tank car storage tank gas phase pipe 6, tank car storage tank liquid-phase tube 1 and tank car storage tank；
Wherein, the one end of target storage tank gas phase pipe 8 is connected with target storage tank gas phase mouth, and the other end passes through switching valve 2 1202 and compression The entrance point of machine 10 is connected, and target storage tank gas valve 801 is provided with the target storage tank gas phase pipe 8；The tank car storage tank pressurization The one end of pipe 15 is connected with the port of export of compressor 10, the other end respectively with tank car storage tank liquid-phase tube 1 and the phase of tank car storage tank gas phase pipe 6 Even；The tank car storage tank liquid-phase tube 1 is connected to tank car storage tank liquid phase mouth one；The tank car storage tank gas phase pipe 6 is connected to tank car Storage tank gas phase mouth；Tank car storage tank liquid phase valve 1 is provided with the tank car storage tank liquid-phase tube 1, on tank car storage tank gas phase pipe 6 It is provided with tank car storage tank gas valve 601.
During work, the gas in target storage tank is evacuated in tank car storage tank by compressor 10, makes the pressure in tank car storage tank Power rises to 0.45 ~ 0.55 MPa, and the pressure in target storage tank is reduced to 0.05 ~ 0.15MPa, and maintains filling all the time in the process Pressure of storage tank of standing is 0.45 ~ 0.55 MPa, tank car pressure of storage tank is remained 0.4MPa with target pressure of storage tank difference；
Gas in target storage tank is extracted out from target storage tank, through target storage tank gas valve 801, switching valve 2 1202, compression After machine 10, tank car storage tank liquid phase valve 1 after tank car storage tank liquid phase mouth one is filled with tank car storage tank,
After the pressure value of target storage tank drops to 0.15 ~ 25MPa of setting value, tank car storage tank liquid phase valve 1 is closed, opens groove Car storage tank gas valve 601, gas is entered from tank car storage tank gas phase mouth in tank car storage tank, tank car pressure of storage tank is stored up more than target Pressure tank value, untill tank car pressure of storage tank and target pressure of storage tank difference remain 0.4MPa.
In said process, the gas that target storage tank comes out enters tank car by tank car storage tank liquid phase mouth one with liquid gaseous form Supercooling liquefaction in storage tank, declines target tank internal pressure, because LNG is in a liquid state, its small volume, therefore in tank car storage tank Portion's pressure slowly rises；Gas volume is bigger than gas volume in tank car storage tank in target storage tank, can be ensured by the above method, Target pressure of storage tank can be depressured completely, while ensure the safety of pressure regulation.When the pressure value of target storage tank drops to setting value Gas is set to improve pressure regulation speed from tank car storage tank gas phase mouth rapid pressure after 0.15 ~ 0.25 again.
The LNG, which fills pipe-line system three, includes tank car storage tank, tank car storage tank liquid-phase tube 27, trimmer valve 1, buffering Tank, target storage tank liquid-phase tube 9, target storage tank；
Wherein, the one end of tank car storage tank liquid-phase tube 27 is connected with tank car storage tank liquid phase mouth two, the other end and the phase of trimmer valve 1 Even, the trimmer valve is with being connected to surge tank；Tank car storage tank liquid phase valve 2 701 is provided with the tank car storage tank liquid-phase tube 27； Described one end of target storage tank liquid-phase tube 9 is connected with surge tank, and the other end is connected with target storage tank liquid phase mouth；The target storage tank liquid Target storage tank liquid phase valve 901 is provided with phase pipe 9.
When LNG is filled,
The LNG in tank car storage tank is filled with target storage tank by pipeline and valve, and maintains tank car storage all the time in the process The MPa of pressure difference 0.4 between pressure tank and target storage tank, untill target storage tank is filled into the setting upper limit；
The LNG come out from tank car storage tank liquid phase mouth two is successively by tank car storage tank liquid phase valve 2 701, trimmer valve 1, buffering Enter after tank, target storage tank liquid phase valve 901 from target storage tank liquid phase mouth in target storage tank.
Tank car storage tank pressure piping system is connected with the tank car storage tank, the tank car storage tank increases pipeline and presses system in groove During car storage tank fills LNG to target storage tank, for tank car pressure of storage tank to be maintained in setting range；The tank car storage Tank pressure piping system includes tank car storage tank, tank car storage tank liquid-phase tube 27, vaporizer 11, surge tank, compressor 10, tank car storage Tank forcing pipe 15, tank car storage tank gas phase pipe 6；
Liquid LNG in tank car storage tank is flowed into by tank car storage tank liquid-phase tube 27 and vaporized after the outflow of tank car storage tank liquid phase mouth two Device 11, for the vaporizer 11 by after liquid LNG vaporization, LNG flows through surge tank, compressor 10, tank car successively in the form of a vapor After storage tank forcing pipe 15, tank car storage tank gas phase pipe 6, returned to from tank car storage tank gas phase mouth in tank car storage tank.
Tank car target storage tank scavenging pipeline system is additionally provided between tank car storage tank and target storage tank；The tank car target storage tank Scavenging pipeline system includes tank car storage tank, tank car storage tank gas phase pipe 6, tank car storage tank forcing pipe 15, blow down valve 1, blow down valve 2 1302, target storage tank liquid-phase tube 9, target storage tank；
From the gas of tank car storage tank gas phase mouth outflow, successively by tank car storage tank gas phase pipe 6, tank car storage tank forcing pipe 15, purging After valve 1, blow down valve 2 1302, target storage tank liquid-phase tube 9, LNG is filled to the LNG that is remained in pipe-line system three from target Storage tank liquid phase mouth is blown into target storage tank.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (9)

  1. A kind of 1. differential LNG loading systems, it is characterised in that：It includes tank car storage tank, filling station storage tank and target storage tank；
    LNG is provided between the tank car storage tank and filling station storage tank to fill pipe-line system one, gas filling pipe-line system one and adjust Hydraulic pipe one；The LNG fill pipe-line system one, gas filling pipe-line system one and pressure regulation pipe-line system one respectively with Tank car storage tank is connected with filling station storage tank；The pressure regulation pipe-line system one, for adjusting between filling station storage tank and tank car storage tank Pressure difference, the pressure for allowing the pressure in tank car storage tank to be more than in filling station storage tank, makes the LNG in tank car storage tank pass through LNG filling tubes Road system one is sent to filling station storage tank, the gas in tank car storage tank is sent to filling station by gas filling pipe-line system one and stores up Tank；
    LNG is provided between the filling station storage tank and target storage tank to fill pipe-line system two, gas filling pipe-line system two and adjust Hydraulic pipe two；The LNG fill pipe-line system two, gas filling pipe-line system two and pressure regulation pipe-line system two respectively with Filling station storage tank is connected with Target Station storage tank；The pressure regulation pipe-line system two, for adjusting between filling station storage tank and target storage tank Pressure difference, the pressure for allowing the pressure in filling station storage tank to be more than in target storage tank, the LNG in filling station storage tank is filled by LNG Dress pipe-line system two is sent to target storage tank, the gas in the filling station storage tank is sent to mesh by gas filling pipe-line system two Mark storage tank；
    LNG, which is provided with, between the tank car storage tank and target storage tank fills pipe-line system three and pressure regulation pipe-line system three；The LNG fills Dress pipe-line system three and pressure regulation pipe-line system three are connected with tank car storage tank and target storage tank respectively；The pressure regulation pipe-line system three, For adjusting the pressure difference between tank car storage tank and target storage tank, the pressure that allows the pressure in tank car tank to be more than in target storage tank makes groove LNG in car storage tank fills pipe-line system three by LNG and is sent to target storage tank.
  2. 2. differential LNG loading systems according to claim 1, it is characterised in that：
    The pressure regulation pipe-line system one includes compressor（10）, the compressor（10）Tank car storage tank is connected with valve by pipeline With filling station storage tank；
    The LNG fills the tank car storage tank that pipe-line system one and gas filling tube road system one include connecting with valve by pipeline With filling station storage tank；
    The compressor（10）For adjusting the pressure difference between tank car storage tank and filling station storage tank, the pressure allowed in tank car storage tank is more than Pressure in filling station storage tank；The LNG in tank car storage tank is filled pipe-line system one by LNG and be sent to filling station storage tank, make groove Gas in car storage tank is sent to filling station storage tank by gas filling pipe-line system one；
    The pressure regulation pipe-line system two includes compressor（10）, the compressor（10）Filling station storage is connected with valve by pipeline Tank and target storage tank；
    The filling station that the LNG fills pipe-line system two with gas filling tube road system two includes connecting with valve by pipeline stores up Tank and target storage tank；
    The compressor（10）For adjusting the pressure difference between filling station storage tank and target storage tank, the pressure allowed in filling station storage tank is big Pressure in target storage tank；The LNG in filling station storage tank is filled pipe-line system two by LNG and be sent to target storage tank, make to add Gas in the storage tank of note station is sent to target storage tank by gas filling pipe-line system two；
    The pressure regulation pipe-line system three includes compressor（10）, the compressor（10）Tank car storage tank is connected with valve by pipeline With target storage tank；
    The LNG fills the tank car storage tank and target storage tank that pipe-line system three includes connecting with valve by pipeline；
    The compressor（10）For adjusting the pressure difference between tank car storage tank and target storage tank, the pressure allowed in tank car storage tank is more than mesh Mark the pressure in storage tank；The LNG in tank car storage tank is filled pipe-line system three by LNG and be sent to target storage tank.
  3. 3. differential LNG loading systems according to claim 1 or 2, it is characterised in that：The pressure regulation pipe-line system one is wrapped Include filling station storage tank, filling station storage tank gas phase pipe one（2）, compressor（10）, tank car storage tank forcing pipe（15）, tank car storage tank liquid phase Guan Yi（5）, tank car storage tank gas phase pipe（6）With tank car storage tank；
    Wherein, filling station storage tank gas phase pipe one（2）One end is connected with filling station storage tank gas phase mouth one, the other end and compressor（10） Entrance point is connected, the filling station storage tank gas phase pipe one（2）Filling station storage tank is provided with filling station storage tank gas phase mouth one Gas valve one（201）, close to compressor（10）Entrance point is provided with filling station storage tank gas valve three（202）；The tank car storage tank Forcing pipe（15）One end and compressor（10）The port of export is connected, the other end respectively with tank car storage tank liquid-phase tube one（5）Stored up with tank car Tank gas phase pipe（6）It is connected；The tank car storage tank liquid-phase tube one（5）It is connected to tank car storage tank liquid phase mouth one；The tank car storage tank gas Xiang Guan（6）It is connected to tank car storage tank gas phase mouth；The tank car storage tank liquid-phase tube one（5）On be provided with tank car storage tank liquid phase valve one （501）, tank car storage tank gas phase pipe（6）On be provided with tank car storage tank gas valve（601）；
    The LNG, which fills pipe-line system one, includes tank car storage tank, tank car storage tank liquid-phase tube two（7）, filling station storage tank gas phase pipe two （4）, filling station storage tank liquid-phase tube two（3）With filling station storage tank；
    Wherein tank car storage tank liquid-phase tube two（7）One end be connected with tank car storage tank liquid phase mouth two, the other end respectively with filling station store up Tank gas phase pipe two（4）With filling station storage tank liquid-phase tube two（3）It is connected, the filling station storage tank gas phase pipe two（4）It is connected to filling Stand storage tank gas phase mouth two, filling station storage tank liquid-phase tube two（3）It is connected to filling station storage tank liquid phase mouth two；
    The filling station storage tank gas phase pipe two（4）On be provided with filling station storage tank gas valve two（401）, filling station storage tank liquid-phase tube Two（3）On be provided with filling station storage tank liquid phase valve two（301）；Tank car storage tank liquid-phase tube two（7）On be provided with tank car storage tank liquid phase Valve two（701）；
    The gas filling pipe-line system one includes tank car storage tank, tank car storage tank liquid-phase tube two（7）, trimmer valve one（1401）, it is slow Rush tank, trimmer valve two（1402）, switching valve two（1202）, compressor（10）, switching valve one（1201）, filling station storage tank gas phase pipe One（2）, filling station storage tank liquid-phase tube one（1）With filling station storage tank；
    The tank car storage tank liquid-phase tube two（7）One end is connected with tank car storage tank liquid phase mouth two, the other end and trimmer valve one（1401） It is connected, the trimmer valve one（1401）It is connected to surge tank；The surge tank passes through trimmer valve two（1402）With switching valve two （1202）It is connected to compressor（10）Entrance point；The compressor（10）The port of export respectively with filling station storage tank gas phase pipe one （2）With filling station storage tank liquid-phase tube one（1）It is connected；The filling station storage tank gas phase pipe one（2）It is connected to filling station storage tank gas phase Mouth one, filling station storage tank liquid-phase tube one（1）It is connected to filling station storage tank liquid phase mouth one；The filling station storage tank gas phase pipe one（2） Filling station storage tank gas valve one is provided with filling station storage tank gas phase mouth one（201）, close to compressor（10）Entrance is set It is equipped with filling station storage tank gas valve three（202）, the compressor（10）The port of export passes through switching valve one（1201）Stored up with filling station Tank gas phase pipe one（2）It is connected, the switching valve one（1201）With filling station storage tank gas phase pipe one（2）Tie point be located at filling station Storage tank gas valve one（201）Between filling station storage tank gas phase pipe valve three；The filling station storage tank liquid-phase tube one（1）On be provided with Filling station storage tank liquid phase valve one（101）.
  4. 4. differential LNG loading systems according to claim 1 or 2, it is characterised in that：The pressure regulation pipe-line system two is wrapped Include target storage tank, target storage tank gas phase pipe（8）, compressor（10）, filling station storage tank liquid-phase tube one（1）, filling station storage tank；
    Wherein, target storage tank gas phase pipe（8）One end is connected with target storage tank gas phase mouth, and the other end passes through switching valve two（1202）With Compressor（10）Entrance point is connected, the target storage tank gas phase pipe（8）On be provided with target storage tank gas valve（801）；It is described to add Note station storage tank liquid-phase tube one（1）One end and compressor（10）The port of export is connected, and the other end is connected with filling station storage tank liquid phase mouth one； The filling station storage tank liquid-phase tube one（1）On be provided with filling station storage tank liquid phase valve one（101）；
    The LNG, which fills pipe-line system two, includes filling station storage tank, filling station storage tank liquid-phase tube two（3）, trimmer valve one（1401）、 Surge tank, target storage tank liquid-phase tube（9）, target storage tank；
    Wherein, filling station storage tank liquid-phase tube two（3）One end is connected with filling station storage tank liquid phase mouth two, the other end and trimmer valve one （1401）It is connected, the trimmer valve one（1401）It is connected to surge tank；The filling station storage tank liquid-phase tube two（3）On be provided with plus Note station storage tank liquid phase valve two（301）；The target storage tank liquid-phase tube（9）One end is connected with surge tank, the other end and target storage tank Liquid phase mouth is connected；The target storage tank liquid-phase tube（9）On be provided with target storage tank liquid phase valve（901）；
    The gas filling pipe-line system two includes filling station storage tank, filling station storage tank gas phase pipe one（2）, compressor（10）, blow Sweep valve one（1301）, target storage tank gas phase pipe（8）, target storage tank；
    Wherein, filling station storage tank gas phase pipe one（2）One end is connected with filling station storage tank gas phase mouth, the other end and compressor（10）Enter Mouth end is connected, the compressor（10）The port of export passes through blow down valve one（1301）With target storage tank gas phase pipe（8）It is connected, the mesh Mark storage tank gas phase pipe（8）It is connected to target storage tank gas phase mouth.
  5. 5. differential LNG loading systems according to claim 1 or 2, it is characterised in that：The pressure regulation pipe-line system three guarantees Include target storage tank, target storage tank gas phase pipe（8）, switching valve two（1202）, compressor（10）, tank car storage tank forcing pipe（15）, groove Car storage tank gas phase pipe（6）, tank car storage tank liquid-phase tube one（5）With tank car storage tank；
    Wherein, target storage tank gas phase pipe（8）One end is connected with target storage tank gas phase mouth, and the other end passes through switching valve two（1202）With Compressor（10）Entrance point is connected, the tank car storage tank forcing pipe（15）One end and compressor（10）The port of export is connected, the other end Respectively with tank car storage tank liquid-phase tube one（5）With tank car storage tank gas phase pipe（6）It is connected；The tank car storage tank liquid-phase tube one（5）Connection To tank car storage tank liquid phase mouth one；The tank car storage tank gas phase pipe（6）It is connected to tank car storage tank gas phase mouth；The tank car storage tank liquid phase Guan Yi（5）On be provided with tank car storage tank liquid phase valve one（501）, tank car storage tank gas phase pipe（6）On be provided with tank car storage tank gas valve （601）；
    The LNG, which fills pipe-line system three, includes tank car storage tank, tank car storage tank liquid-phase tube two（7）, trimmer valve, surge tank, target Storage tank liquid-phase tube（9）, target storage tank；
    Wherein, tank car storage tank liquid-phase tube two（7）One end is connected with tank car storage tank liquid phase mouth two, and the other end is connected with trimmer valve, institute State trimmer valve and be connected to surge tank；The tank car storage tank liquid-phase tube two（7）On be provided with tank car storage tank liquid phase valve two（701）；Institute State target storage tank liquid-phase tube（9）One end is connected with surge tank, and the other end is connected with target storage tank liquid phase mouth；The target storage tank liquid Xiang Guan（9）On be provided with target storage tank liquid phase valve（901）.
  6. 6. the differential LNG loading systems according to claim 3 or 5, it is characterised in that：It is connected with the tank car storage tank Tank car storage tank pressure piping system, the tank car storage tank pressure piping system is in tank car storage tank to filling station storage tank and target storage tank During filling LNG, for tank car pressure of storage tank to be maintained in setting range；The tank car storage tank pressure piping system bag Include tank car storage tank, tank car storage tank liquid-phase tube two（7）, vaporizer（11）, surge tank, compressor（10）, tank car storage tank forcing pipe （15）, tank car storage tank gas phase pipe（6）；
    Liquid LNG in tank car storage tank passes through tank car storage tank liquid-phase tube two after the outflow of tank car storage tank liquid phase mouth two（7）Flow into vapour Change device（11）, the vaporizer（11）After liquid LNG vaporization, LNG flows through surge tank, compressor successively in the form of a vapor （10）, tank car storage tank forcing pipe（15）, tank car storage tank gas phase pipe（6）Afterwards, returned to from tank car storage tank gas phase mouth in tank car storage tank.
  7. 7. differential LNG loading systems according to claim 4, it is characterised in that：The filling station storage tank also includes adding Note station storage tank pressure piping system；The filling station storage tank pressure piping system fills LNG in filling station storage tank to target storage tank During, for filling station pressure of storage tank to be maintained in setting range；The filling station storage tank pressure piping system includes Filling station storage tank, filling station storage tank liquid-phase tube two（3）, vaporizer（11）, surge tank, compressor（10）, switching valve one（1201）、 Filling station storage tank gas phase pipe one（2）；
    The LNG flowed out from filling station storage tank liquid phase mouth two, through filling station storage tank liquid-phase tube two（3）Flow into vaporizer（11）, LNG warps Vaporizer（11）After vaporization, surge tank, compressor are passed sequentially through（10）, switching valve, filling station storage tank gas phase pipe one（2）Afterwards, from Filling station storage tank gas phase mouth one is returned in filling station storage tank.
  8. 8. differential LNG loading systems according to claim 4, it is characterised in that：Between filling station storage tank and target storage tank It is additionally provided with filling station target storage tank scavenging pipeline system；The filling station target storage tank scavenging pipeline system is stored up including filling station Tank, filling station storage tank gas phase pipe two（4）, trimmer valve, surge tank, blow down valve two（1302）, target storage tank liquid-phase tube（9）, target Storage tank；
    The gas flowed out from filling station storage tank gas phase mouth two, through filling station storage tank gas phase pipe two（4）, buffering pipe valve, surge tank, blow Sweep valve two（1302）, target storage tank liquid-phase tube（9）Afterwards, LNG is filled to the LNG that is remained in pipe-line system two from target storage tank liquid phase Mouth is blown into target storage tank.
  9. 9. differential LNG loading systems according to claim 5, it is characterised in that：Between tank car storage tank and target storage tank also It is provided with tank car target storage tank scavenging pipeline system；The tank car target storage tank scavenging pipeline system includes tank car storage tank, tank car Storage tank gas phase pipe（6）, tank car storage tank forcing pipe（15）, blow down valve one（1301）, blow down valve two（1302）, target storage tank liquid-phase tube （9）, target storage tank；
    From the gas of tank car storage tank gas phase mouth outflow, successively by tank car storage tank gas phase pipe（6）, tank car storage tank forcing pipe（15）、 Blow down valve one（1301）, blow down valve two（1302）, target storage tank liquid-phase tube（9）Afterwards, LNG is filled what is remained in pipe-line system three LNG is blown into target storage tank from target storage tank liquid phase mouth.
CN201711076601.0A 2017-11-06 2017-11-06 Differential pressure type LNG filling system Active CN107676623B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711076601.0A CN107676623B (en) 2017-11-06 2017-11-06 Differential pressure type LNG filling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711076601.0A CN107676623B (en) 2017-11-06 2017-11-06 Differential pressure type LNG filling system

Publications (2)

Publication Number Publication Date
CN107676623A true CN107676623A (en) 2018-02-09
CN107676623B CN107676623B (en) 2023-08-22

Family

ID=61146295

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711076601.0A Active CN107676623B (en) 2017-11-06 2017-11-06 Differential pressure type LNG filling system

Country Status (1)

Country Link
CN (1) CN107676623B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019209829A1 (en) * 2018-04-23 2019-10-31 Custom Biogenic Systems, Inc Storage tank for cryogenic liquid
CN110425418A (en) * 2019-07-31 2019-11-08 郑州朗润智能装备股份有限公司 Box LNG aerating skid-mounted device process system and its working method
CN111692518A (en) * 2020-06-19 2020-09-22 青岛乐戈新能源科技有限公司 Plunger pump drainage method and device for LNG (liquefied Natural gas) station
CN114352930A (en) * 2021-12-12 2022-04-15 航天晨光股份有限公司 Safe and automatic transfer system from liquid hydrogen to liquid hydrogen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101476667A (en) * 2009-01-24 2009-07-08 徐健 Integral liquid gas station system and its operation method
JP2010031904A (en) * 2008-07-25 2010-02-12 Tokyo Electric Power Co Inc:The Vaporized gas supply system of low-temperature liquid
CN203517304U (en) * 2013-09-23 2014-04-02 天津市益斯达燃气设备有限公司 Air-entrapping and unloading multi-channel LNG (Liquefied Natural Gas) circulating system
CN104165266A (en) * 2014-08-14 2014-11-26 陈影 Filling system of pressure differential liquefied natural gas filling station and method thereof
CN205137064U (en) * 2015-09-30 2016-04-06 赛鼎工程有限公司 Liquefied natural gas tank wagon that liquefied natural gas and CNG built station jointly device of unloading
CN205746013U (en) * 2016-05-12 2016-11-30 自贡东方通用压缩机有限公司 A kind of LNG loading system
CN207687667U (en) * 2017-11-06 2018-08-03 成都华气厚普机电设备股份有限公司 A kind of differential LNG loading systems

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010031904A (en) * 2008-07-25 2010-02-12 Tokyo Electric Power Co Inc:The Vaporized gas supply system of low-temperature liquid
CN101476667A (en) * 2009-01-24 2009-07-08 徐健 Integral liquid gas station system and its operation method
CN203517304U (en) * 2013-09-23 2014-04-02 天津市益斯达燃气设备有限公司 Air-entrapping and unloading multi-channel LNG (Liquefied Natural Gas) circulating system
CN104165266A (en) * 2014-08-14 2014-11-26 陈影 Filling system of pressure differential liquefied natural gas filling station and method thereof
CN205137064U (en) * 2015-09-30 2016-04-06 赛鼎工程有限公司 Liquefied natural gas tank wagon that liquefied natural gas and CNG built station jointly device of unloading
CN205746013U (en) * 2016-05-12 2016-11-30 自贡东方通用压缩机有限公司 A kind of LNG loading system
CN207687667U (en) * 2017-11-06 2018-08-03 成都华气厚普机电设备股份有限公司 A kind of differential LNG loading systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019209829A1 (en) * 2018-04-23 2019-10-31 Custom Biogenic Systems, Inc Storage tank for cryogenic liquid
CN110425418A (en) * 2019-07-31 2019-11-08 郑州朗润智能装备股份有限公司 Box LNG aerating skid-mounted device process system and its working method
CN110425418B (en) * 2019-07-31 2021-06-04 郑州朗润智能装备股份有限公司 Box type LNG (liquefied Natural gas) filling skid-mounted device process system and working method thereof
CN111692518A (en) * 2020-06-19 2020-09-22 青岛乐戈新能源科技有限公司 Plunger pump drainage method and device for LNG (liquefied Natural gas) station
CN114352930A (en) * 2021-12-12 2022-04-15 航天晨光股份有限公司 Safe and automatic transfer system from liquid hydrogen to liquid hydrogen
CN114352930B (en) * 2021-12-12 2024-03-29 航天晨光股份有限公司 Liquid hydrogen to liquid hydrogen safety automatic transfer injection method

Also Published As

Publication number Publication date
CN107676623B (en) 2023-08-22

Similar Documents

Publication Publication Date Title
CN107676623A (en) A kind of differential LNG loading systems
JP7387394B2 (en) Methods and equipment for storing and distributing liquefied hydrogen
CN205350853U (en) Cryrogenic fluid conveying system
HRP20010388A2 (en) Method for displacing pressurized liquefied gas from containers
CN104110574B (en) A kind of cryogenic gas condensate recovery system and method thereof
CN104165266B (en) A kind of pressure reduction formula liquefied natural gas filling station adds injection system and method thereof
CN105179930A (en) Liquefied natural gas tank car unloading device of liquefied natural gas and compressed natural gas cooperative station and application
CN207687667U (en) A kind of differential LNG loading systems
US20100320224A1 (en) System for Avoiding Excessive Pressure while Discharging Compressed Gas Cylinders
CN104763875A (en) Liquid unloading method for liquefied natural gas or coal gas
CN207394353U (en) A kind of differential LNG tank cars charging system
CN201215251Y (en) Self-recovering system for compressed natural gas
CN205316815U (en) High -efficient liquefaction recovery unit of natural gas
CN212029160U (en) Gas recovery device
CN102913753A (en) Storage and gasification project output system of LNG (Liquefied Natural Gas) receiving terminal as well as method
JP2006275091A (en) Hydrogen gas supply method and liquefied hydrogen transport vehicle
CN201651755U (en) Liquid argon conveyer
KR101291352B1 (en) Oil loading and unloading apparatus for oil tanker
CN207471116U (en) A kind of differential LNG filling stations loading system
CN207394364U (en) A kind of differential LNG tank cars unloading system
CN202868303U (en) Storage and gasification engineering output system of liquefied natural gas (LNG) accepting station
CN206290966U (en) Removable bank base formula LNG loading systems
CN205331792U (en) Residual gas recovery unit in transport tank
CN105546338B (en) Residual gas retracting device in a kind of transfer cask
CN205137064U (en) Liquefied natural gas tank wagon that liquefied natural gas and CNG built station jointly device of unloading

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041

Applicant after: Houpu clean energy Co.,Ltd.

Address before: 610041 No. 3, floor 11, building 6, No. 599, shijicheng South Road, high tech Zone, Chengdu, Sichuan

Applicant before: CHENGDU HUAQI HOUPU HOLDING Co.,Ltd.

Address after: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041

Applicant after: Houpu clean energy (Group) Co.,Ltd.

Address before: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041

Applicant before: Houpu clean energy Co.,Ltd.

GR01 Patent grant
GR01 Patent grant