CN110056764A - A kind of LNG filling is online to adjust saturation device and control method - Google Patents
A kind of LNG filling is online to adjust saturation device and control method Download PDFInfo
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- CN110056764A CN110056764A CN201910352828.6A CN201910352828A CN110056764A CN 110056764 A CN110056764 A CN 110056764A CN 201910352828 A CN201910352828 A CN 201910352828A CN 110056764 A CN110056764 A CN 110056764A
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- 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
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- 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
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- 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
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
-
- 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
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- 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
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- 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
- F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0326—Valves electrically actuated
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- 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
- F17C2205/0352—Pipes
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
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- 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
- F17C2227/0135—Pumps
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- 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
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
- F17C2227/039—Localisation of heat exchange separate on the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/065—Fluid distribution for refueling vehicle fuel tanks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of LNG to fill online tune saturation device and control method, belongs to natural gas filling field, and the delivery pump removes liquid inlet pipe, heat exchanger liquid phase runner, liquid outlet pipe and liquid filler gone to be sequentially communicated；The liquid filler, return-air inlet pipe, heat exchanger gas phase runner, return-air outlet pipe and storage tank are sequentially communicated；It is described that liquid inlet pipe, shunting inlet pipe, air temperature type vaporizer, shunting outlet pipe and return-air inlet pipe is gone to be sequentially communicated；Described that liquid outlet pipe is gone to be equipped with temperature sensor, return-air inlet pipe is equipped with pressure sensor, and return-air outlet pipe is equipped with regulating valve B, shunts outlet pipe and is equipped with regulating valve A；The controller is electrically connected with temperature sensor, pressure sensor, regulating valve A and regulating valve B respectively.A kind of LNG filling of the invention is online to adjust saturation device and control method, heats to the LNG in filling process, and the LNG in storage tank remains within low temperature, improves LNG storage life in storage tank, reduces discharge waste and environmental pollution phenomenon.
Description
Technical field
The invention belongs to natural gases to fill field, relate in particular to a kind of LNG filling tune saturation device and control online
Method.
Background technique
As a kind of important clean energy resource, LNG obtains very extensive application in the fields such as industrial, civilian in recent years,
Logistics and passenger traffic industry have built a large amount of LNG refueling station.
LNG filling station, process flow generally comprise unload, pressure regulation, temperature adjustment, the processes such as filling, corresponding equipment includes to unload
Platform, pressure-regulating temp-regulating device, delivery pump, liquid filler and station control system.
LNG vehicle needs the LNG filled into suitable temperature just to can guarantee its normal work, at this stage existing for LNG station work
LNG liquid is generally inputted vaporizer by delivery pump and absorbs air heat by skill when LNG temperature is too low in storage tank needs to heat
Storage tank is taken back after amount to carry out the mode that LNG in storage tank integrally heats up.
Such mode meeting bring influence is exactly LNG temperature and the pressure increased in whole tank, not due to vacuum storage tank
It can guarantee absolute insulation, shorten storage life of the LNG in tank, be easier that storage tank pressure occurs during operation
Power superpressure discharges the phenomenon that boil-off gas, causes environmental pollution and economic loss.
Summary of the invention
The purpose of the present invention is providing in view of the above shortcomings, a kind of LNG filling is online to adjust saturation device and controlling party
Method intends to solve to integrally heat bring negative effect to LNG in storage tank to the LNG liquid of vehicle filling suitable temperature.For
Realize above-mentioned purpose, the invention provides the following technical scheme:
A kind of LNG filling is online to adjust saturation device, and the liquified natural gas and liquid filler of liquid filler are delivered to for changing delivery pump
It is transferred back to the gaseous natural gas temperature of storage tank, including controller, heat exchanger 1, air temperature type vaporizer 3, regulating valve A4, regulating valve
B6, temperature sensor 2, pressure sensor 5, liquid inlet pipe 71 is removed, liquid outlet pipe 72 is gone, return-air inlet pipe 73, return-air outlet pipe 74, is diverted into
Pipe 75 and shunting outlet pipe 76；The heat exchanger 1 includes liquid phase runner 11 and gas phase runner 12；The delivery pump, go liquid inlet pipe 71,
Liquid phase runner 11 goes liquid outlet pipe 72 and liquid filler to be sequentially communicated；The liquid filler, return-air inlet pipe 73, gas phase runner 12, return-air go out
Pipe 74 and storage tank are sequentially communicated；It is described go liquid inlet pipe 71, shunt inlet pipe 75, air temperature type vaporizer 3, shunt outlet pipe 76 and return-air into
Pipe 73 is sequentially communicated；Described that liquid outlet pipe 72 is gone to be equipped with temperature sensor 2, return-air inlet pipe 73 is equipped with pressure sensor 5, return-air
Outlet pipe 74 is equipped with regulating valve B6, shunts outlet pipe 76 and is equipped with regulating valve A4；The controller respectively with temperature sensor 2, pressure
Force snesor 5, regulating valve A4 and regulating valve B6 electrical connection.By above structure it is found that controller control mode is controlled using PLC,
It is preferred that Siemens S7_1200；Regulating valve A4 is Linear regulating valve, DN15, KV=3.5；Regulating valve B6 is equal proportion regulating valve,
DN15, KV=3.5；Air temperature type vaporizer 150Nm3/h；The present apparatus is by the way of online tune saturation to the LNG in filling process
It is heated, enters LNG fuel vehicle steel cylinder after reaching preset suitable temperature, and the LNG in storage tank remains within low temperature
Low-pressure state improves LNG storage life in storage tank, reduces discharge waste and environmental pollution phenomenon.To realize in filling process to LNG
Controllable heating temperature adjustment is carried out, conventional technical means generally uses adjustable electric heater to heat filling fluid, but energy consumption
It is higher, the capacity of power supply-distribution system need to be improved, operation cost is higher.Present apparatus heat exchanger 1 as primary heater to LNG stream body into
Row heating, heat source a part come from automobile steel cylinder return-air, and a part branches to air temperature type vaporization from the LNG of delivery pump output
Re-liquefied gained after device 3 vaporizes；The 12 internal heat operating condition of gas phase runner of heat exchanger 1 by pressure sensor 5 and regulating valve B6 Lai
Control, maintain under natural gas saturation pressure operating condition with guarantee herein natural-gas can by abundant liquidation exothermic reaction, heat exchanging device 1
LNG heating in liquid phase runner 11, saturation pressure setting value is by controller according to current LNG heating temperature preset value calculation institute
?；It goes liquid outlet pipe 72 to be equipped with temperature sensor 2, detects heating state, when needing to heat, control to adjust valve B6 and adjust heat exchange
The pressure of the gas phase runner 12 of device 1, makes gaseous natural gas liquidation exothermic reaction, and heat exchange power is determined by air demand and pressure；Control
Device detects temperature according to temperature sensor 2, controls to adjust valve A4 and adjusts the natural gas supply amount generated by air temperature type vaporizer 3；
When not needing heating, index combustion fan B6 standard-sized sheet is controlled, reduces by 12 pressure of gas phase runner of heat exchanger 1, gas is by heat exchange
Device 1 will not generate phase transformation heat release, and only common temperature difference heat exchange is filled into steel cylinder again with recycling steel cylinder return-air heat, and reduction returns to
The heat of storage tank reduces the generation of BOG boil-off gas.The present apparatus is adjusted for saturation mode compared to conventional integrally heat to storage tank, is increased
Add LNG storage life in storage tank, reduces exhaust emission and the waste of BOG boil-off gas.
Further, the heat exchanger 1 is plate heat exchanger, high for the medium in liquid phase runner 11 and gas phase runner 12
Effect heat exchange.By above structure it is found that plate heat exchanger model SWEP B25T*40;Come compared to electric heater tune saturation mode
It says, distribution capacity is greatly saved, it is energy saving, it cuts operating costs.
Further, the return-air inlet pipe 73 is equipped with safety valve, for avoiding hypertonia in return-air inlet pipe 73.By upper
Structure is stated it is found that safety valve causes device to damage for avoiding hypertonia in return-air inlet pipe 73.
Further, the temperature sensor 2 is for monitoring liquified natural gas after the heat exchange of heat exchanger liquid phase runner 11
Temperature, and temperature information is passed into controller, the controller controls to adjust the aperture of valve A4 according to temperature information.By upper
Structure is stated it is found that needing to be promoted liquified natural gas temperature, controller is believed according to temperature when 2 measuring temperature of temperature sensor is low
Breath sets current saturation pressure setting value；The aperture that controller controls to adjust valve A4 increases, and improves gaseous natural gas through regulating valve
A4 to return-air inlet pipe 73 supply.
Further, before the pressure sensor 5 is for monitoring gaseous natural gas by the heat exchange of heat exchanger gas phase runner 12
Pressure, and pressure information is passed into controller, the controller controls to adjust valve B6 according to pressure information and temperature information
Aperture.By above structure it is found that needing to be promoted liquified natural gas temperature, controller when 2 measuring temperature of temperature sensor is low
Current saturation pressure setting value is set according to temperature information；The pressure sensor 5 is for monitoring gaseous natural gas by gas phase
Pressure before the heat exchange of runner 12, and pressure information is passed into controller, the controller controls to adjust valve according to pressure information
The aperture of B6, it is ensured that pressure reaches saturation pressure setting value；Since gaseous natural gas pressure reaches saturation pressure setting value at this time,
Liquefaction is liquified natural gas, the heat release in gas phase runner 12；Liquid natural aspiration gas phase runner 12 in liquid phase runner 11 is put
Heat out, temperature increase.
A kind of control method of the online tune saturation of LNG filling, is satisfied using online adjust of a kind of LNG filling as described in first item
And device, including fluid injection step, return-air step, increase that jia bombardier is rapid and heat exchange step；
The fluid injection step are as follows: delivery pump extracts liquified natural gas out of storage tank, and liquified natural gas is successively removed liquid inlet pipe 71, liquid
Phase runner 11 goes liquid outlet pipe 72 to liquid filler, and liquid filler is to vehicle steel cylinder fluid injection；
The return-air step are as follows: the gaseous natural gas in vehicle steel cylinder passes through liquid filler successively cooled via return air inlet pipe 73, gas phase runner
12, return-air outlet pipe 74 carries out return-air to storage tank；
The increasing jia bombardier is rapid are as follows: the liquified natural gas gone in liquid inlet pipe 71 is successively shunted inlet pipe 75, air temperature type vaporizer 3, divided
Effuser 76 is to return-air inlet pipe 73；Liquified natural gas vaporizes in air temperature type vaporizer 3, until having become gaseous state when return-air inlet pipe 73
Natural gas；The temperature sensor 2 is used to monitor temperature of the liquified natural gas after the heat exchange of liquid phase runner 11, and temperature is believed
Breath passes to controller, and the controller controls to adjust the aperture of valve A4 according to temperature information；When 2 measuring temperature of temperature sensor
When low, need to be promoted liquified natural gas temperature, the aperture that controller controls to adjust valve A4 increases, and improves gaseous natural gas through adjusting
Valve A4 to return-air inlet pipe 73 supply；
The heat exchange step are as follows: when 2 measuring temperature of temperature sensor is low, need to be promoted liquified natural gas temperature, controller root
Current saturation pressure setting value is set according to temperature information；The pressure sensor 5 is for monitoring gaseous natural gas by gas phase stream
Pressure before the heat exchange of road 12, and pressure information is passed into controller, the controller controls to adjust valve B6 according to pressure information
Aperture, it is ensured that pressure reaches saturation pressure setting value；Since the gaseous natural gas pressure in gas phase runner 12 at this time reaches full
And pressure set points, it liquefies and releases latent heat；The heat that liquid natural aspiration gas phase runner 12 in liquid phase runner 11 is released,
Temperature increases.
The beneficial effects of the present invention are:
1. filling online tune saturation device the invention discloses a kind of LNG and control method, the delivery pump removing liquid inlet pipe, liquid
Phase runner goes liquid outlet pipe and liquid filler to be sequentially communicated；The liquid filler, return-air inlet pipe, gas phase runner, return-air outlet pipe and storage tank according to
Secondary connection；It is described that liquid inlet pipe, shunting inlet pipe, air temperature type vaporizer, shunting outlet pipe and return-air inlet pipe is gone to be sequentially communicated；It is described to remove liquid
Outlet pipe is equipped with temperature sensor, and return-air inlet pipe is equipped with pressure sensor, and return-air outlet pipe is equipped with regulating valve B, shunts outlet pipe
It is equipped with regulating valve A；The controller is electrically connected with temperature sensor, pressure sensor, regulating valve A and regulating valve B respectively.This
A kind of LNG filling of invention is online to adjust saturation device and control method, heats to the LNG in filling process, and in storage tank
LNG remain within low temperature, improve LNG storage life in storage tank, reduce discharge waste and environmental pollution phenomenon.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In attached drawing: 1- heat exchanger, 11- liquid phase runner, 12- gas phase runner, 2- temperature sensor, 3- air temperature type vaporizer, 4- tune
Section valve A, 5- pressure sensor, 6- regulating valve B, 71- go liquid inlet pipe, 72- go liquid outlet pipe, 73- return-air inlet pipe, 74- return-air outlet pipe,
75- shunts inlet pipe, 76- shunts outlet pipe.
Specific embodiment
With reference to the accompanying drawing with specific embodiment, the present invention is described in more detail, but the present invention is not limited to
Following embodiment.
Embodiment one:
See attached drawing 1.A kind of LNG filling is online to adjust saturation device, and the liquified natural gas of liquid filler is delivered to for changing delivery pump
Be transferred back to the gaseous natural gas temperature of storage tank with liquid filler, including controller, heat exchanger 1, air temperature type vaporizer 3, regulating valve A4,
Regulating valve B6, temperature sensor 2, pressure sensor 5, go liquid inlet pipe 71, go liquid outlet pipe 72, return-air inlet pipe 73, return-air outlet pipe 74,
It shunts inlet pipe 75 and shunts outlet pipe 76；The heat exchanger 1 includes liquid phase runner 11 and gas phase runner 12；The delivery pump removes liquid
Inlet pipe 71, goes liquid outlet pipe 72 and liquid filler to be sequentially communicated at liquid phase runner 11；The liquid filler, return-air inlet pipe 73, gas phase runner
12, return-air outlet pipe 74 and storage tank are sequentially communicated；It is described to remove liquid inlet pipe 71, shunt inlet pipe 75, air temperature type vaporizer 3, shunt outlet pipe
76 and return-air inlet pipe 73 be sequentially communicated；Described that liquid outlet pipe 72 is gone to be equipped with temperature sensor 2, return-air inlet pipe 73 is passed equipped with pressure
Sensor 5, return-air outlet pipe 74 are equipped with regulating valve B6, shunt outlet pipe 76 and are equipped with regulating valve A4；The controller respectively with temperature
Sensor 2, pressure sensor 5, regulating valve A4 and regulating valve B6 electrical connection.By above structure it is found that controller control mode is adopted
It is controlled with PLC, preferably Siemens S7_1200；Regulating valve A4 is Linear regulating valve, DN15, KV=3.5；Regulating valve B6 is equal proportion
Regulating valve, DN15, KV=3.5；Air temperature type vaporizer 150Nm3/h；The present apparatus is by the way of online tune saturation to filling process
In LNG heated, reach and enter LNG fuel vehicle steel cylinder after preset suitable temperature, and the LNG in storage tank is still maintained
In low temperature, LNG storage life in storage tank is improved, reduces discharge waste and environmental pollution phenomenon.To realize filling process
In carry out controllable heating temperature adjustment to LNG, conventional technical means generally uses adjustable electric heater to heat filling fluid,
But energy consumption is higher, need to improve the capacity of power supply-distribution system, and operation cost is higher.Present apparatus heat exchanger 1 is as primary heater to LNG
Fluid is heated, and heat source a part comes from automobile steel cylinder return-air, and a part branches to air temperature from the LNG of delivery pump output
Re-liquefied gained after formula vaporizer 3 vaporizes；The 12 internal heat operating condition of gas phase runner of heat exchanger 1 is by pressure sensor 5 and adjusts
Valve B6 is controlled, and is maintained under natural gas saturation pressure operating condition to guarantee that natural-gas can be exchanged by abundant liquidation exothermic reaction herein
LNG heating in the liquid phase runner 11 of hot device 1, saturation pressure setting value is by controller according to current LNG heating temperature setting value
Calculate gained；It goes liquid outlet pipe 72 to be equipped with temperature sensor 2, detects heating state, when needing to heat, control to adjust valve B6 tune
The pressure for saving the gas phase runner 12 of heat exchanger 1, makes gaseous natural gas liquidation exothermic reaction, heat exchange power is determined by air demand and pressure
It is fixed；Controller detects temperature according to temperature sensor 2, controls to adjust valve A4 and adjusts the natural gas generated by air temperature type vaporizer 3
Supply amount；When not needing heating, index combustion fan B6 standard-sized sheet is controlled, reduces by 12 pressure of gas phase runner of heat exchanger 1, gas warp
Phase transformation heat release will not be generated by crossing heat exchanger 1, and only common temperature difference heat exchange is filled into steel cylinder again with recycling steel cylinder return-air heat, be subtracted
The heat of storage tank is returned to less, reduces the generation of BOG boil-off gas.The present apparatus adjusts saturation mode compared to conventional integrally heat to storage tank
It says, increases LNG storage life in storage tank, reduce exhaust emission and the waste of BOG boil-off gas.
Embodiment two:
See attached drawing 1.A kind of LNG filling is online to adjust saturation device, and the liquified natural gas of liquid filler is delivered to for changing delivery pump
Be transferred back to the gaseous natural gas temperature of storage tank with liquid filler, including controller, heat exchanger 1, air temperature type vaporizer 3, regulating valve A4,
Regulating valve B6, temperature sensor 2, pressure sensor 5, go liquid inlet pipe 71, go liquid outlet pipe 72, return-air inlet pipe 73, return-air outlet pipe 74,
It shunts inlet pipe 75 and shunts outlet pipe 76；The heat exchanger 1 includes liquid phase runner 11 and gas phase runner 12；The delivery pump removes liquid
Inlet pipe 71, goes liquid outlet pipe 72 and liquid filler to be sequentially communicated at liquid phase runner 11；The liquid filler, return-air inlet pipe 73, gas phase runner
12, return-air outlet pipe 74 and storage tank are sequentially communicated；It is described to remove liquid inlet pipe 71, shunt inlet pipe 75, air temperature type vaporizer 3, shunt outlet pipe
76 and return-air inlet pipe 73 be sequentially communicated；Described that liquid outlet pipe 72 is gone to be equipped with temperature sensor 2, return-air inlet pipe 73 is passed equipped with pressure
Sensor 5, return-air outlet pipe 74 are equipped with regulating valve B6, shunt outlet pipe 76 and are equipped with regulating valve A4；The controller respectively with temperature
Sensor 2, pressure sensor 5, regulating valve A4 and regulating valve B6 electrical connection.By above structure it is found that controller control mode is adopted
It is controlled with PLC, preferably Siemens S7_1200；Regulating valve A4 is Linear regulating valve, DN15, KV=3.5；Regulating valve B6 is equal proportion
Regulating valve, DN15, KV=3.5；Air temperature type vaporizer 3:50Nm3/h；The present apparatus is by the way of online tune saturation to filling process
In LNG heated, reach and enter LNG fuel vehicle steel cylinder after preset suitable temperature, and the LNG in storage tank is still maintained
In low temperature, LNG storage life in storage tank is improved, reduces discharge waste and environmental pollution phenomenon.To realize filling process
In carry out controllable heating temperature adjustment to LNG, conventional technical means generally uses adjustable electric heater to heat filling fluid,
But energy consumption is higher, need to improve the capacity of power supply-distribution system, and operation cost is higher.Present apparatus heat exchanger 1 is as primary heater to LNG
Fluid is heated, and heat source a part comes from automobile steel cylinder return-air, and a part branches to air temperature from the LNG of delivery pump output
Re-liquefied gained after formula vaporizer 3 vaporizes；The 12 internal heat operating condition of gas phase runner of heat exchanger 1 is by pressure sensor 5 and adjusts
Valve B6 is controlled, and is maintained under natural gas saturation pressure operating condition to guarantee that natural-gas can be exchanged by abundant liquidation exothermic reaction herein
LNG heating in the liquid phase runner 11 of hot device 1, saturation pressure setting value is by controller according to current LNG heating temperature setting value
Calculate gained；It goes liquid outlet pipe 72 to be equipped with temperature sensor 2, detects heating state, when needing to heat, control to adjust valve B6 tune
The pressure for saving the gas phase runner 12 of heat exchanger 1, makes gaseous natural gas liquidation exothermic reaction, heat exchange power is determined by air demand and pressure
It is fixed；Controller detects temperature according to temperature sensor 2, controls to adjust valve A4 and adjusts the natural gas generated by air temperature type vaporizer 3
Supply amount；When not needing heating, index combustion fan B6 standard-sized sheet is controlled, reduces by 12 pressure of gas phase runner of heat exchanger 1, gas warp
Phase transformation heat release will not be generated by crossing heat exchanger 1, and only common temperature difference heat exchange is filled into steel cylinder again with recycling steel cylinder return-air heat, be subtracted
The heat of storage tank is returned to less, reduces the generation of BOG boil-off gas.The present apparatus adjusts saturation mode compared to conventional integrally heat to storage tank
It says, increases LNG storage life in storage tank, reduce exhaust emission and the waste of BOG boil-off gas.
The heat exchanger 1 is plate heat exchanger, for the medium high efficient heat exchanging in liquid phase runner 11 and gas phase runner 12.By
Above structure is it is found that plate heat exchanger model SWEP B25T*40;For electric heater tune saturation mode, save significantly
About distribution capacity, it is energy saving, it cuts operating costs.
The return-air inlet pipe 73 is equipped with safety valve, for avoiding hypertonia in return-air inlet pipe 73.It can by above structure
Know, safety valve, for avoiding hypertonia in return-air inlet pipe 73, device is caused to damage.
The temperature sensor 2 is used to monitor temperature of the liquified natural gas after the heat exchange of liquid phase runner 11, and by temperature
Information passes to controller, and the controller controls to adjust the aperture of valve A4 according to temperature information.By above structure it is found that when temperature
When degree 2 measuring temperature of sensor is low, need to be promoted liquified natural gas temperature, controller sets current saturation pressure according to temperature information
Power setting value；The aperture that controller controls to adjust valve A4 increases, and improves gaseous natural gas through regulating valve A4 to return-air inlet pipe 73
Supply.
The pressure sensor 5 is used to monitor the pressure before gaseous natural gas exchanges heat by gas phase runner 12, and by pressure
Information passes to controller, and the controller controls to adjust the aperture of valve B6 according to pressure information and temperature information.By above-mentioned knot
Structure needs to be promoted liquified natural gas temperature, controller is set according to temperature information it is found that when 2 measuring temperature of temperature sensor is low
Settled preceding saturation pressure setting value；Before the pressure sensor 5 is for monitoring gaseous natural gas by the heat exchange of gas phase runner 12
Pressure, and pressure information is passed into controller, the controller controls to adjust the aperture of valve B6 according to pressure information, it is ensured that pressure
Power reaches saturation pressure setting value；Since gaseous natural gas pressure reaches saturation pressure setting value at this time, liquefy as liquid natural
Gas, the heat release in gas phase runner 12；The heat that liquid natural aspiration gas phase runner 12 in liquid phase runner 11 is released, temperature liter
It is high.
Embodiment three:
See attached drawing 1.A kind of online control method for adjusting saturation of LNG filling, is filled online using a kind of LNG as described in first item
It adjusts saturation device, including fluid injection step, return-air step, increases that jia bombardier is rapid and heat exchange step；
The fluid injection step are as follows: delivery pump extracts liquified natural gas out of storage tank, and liquified natural gas is successively removed liquid inlet pipe 71, liquid
Phase runner 11 goes liquid outlet pipe 72 to liquid filler, and liquid filler is to vehicle steel cylinder fluid injection；
The return-air step are as follows: the gaseous natural gas in vehicle steel cylinder passes through liquid filler successively cooled via return air inlet pipe 73, gas phase runner
12, return-air outlet pipe 74 carries out return-air to storage tank；
The increasing jia bombardier is rapid are as follows: the liquified natural gas gone in liquid inlet pipe 71 is successively shunted inlet pipe 75, air temperature type vaporizer 3, divided
Effuser 76 is to return-air inlet pipe 73；Liquified natural gas vaporizes in air temperature type vaporizer 3, until having become gaseous state when return-air inlet pipe 73
Natural gas；The temperature sensor 2 is used to monitor temperature of the liquified natural gas after the heat exchange of liquid phase runner 11, and temperature is believed
Breath passes to controller, and the controller controls to adjust the aperture of valve A4 according to temperature information；When 2 measuring temperature of temperature sensor
When low, need to be promoted liquified natural gas temperature, the aperture that controller controls to adjust valve A4 increases, and improves gaseous natural gas through adjusting
Valve A4 to return-air inlet pipe 73 supply；
The heat exchange step are as follows: when 2 measuring temperature of temperature sensor is low, need to be promoted liquified natural gas temperature, controller root
Current saturation pressure setting value is set according to temperature information；The pressure sensor 5 is for monitoring gaseous natural gas by gas phase stream
Pressure before the heat exchange of road 12, and pressure information is passed into controller, the controller controls to adjust valve B6 according to pressure information
Aperture, it is ensured that pressure reaches saturation pressure setting value；Since the gaseous natural gas pressure in gas phase runner 12 at this time reaches full
And pressure set points, it liquefies and releases latent heat；The heat that liquid natural aspiration gas phase runner 12 in liquid phase runner 11 is released,
Temperature increases.
A kind of LNG filling of the invention is online to adjust saturation device and control method, and heat exchanger is using the plate for wrapping up in insulating layer outside
Formula heat exchanger, operating condition is adjusted to by regulating valve to saturation pressure, natural gas phase-state change under saturation pressure in plate heat exchanger,
A large amount of Topography LNG are released in liquefaction, and the thermal efficiency of heat exchanger is very high, and the heat exchanger device of volume ratio routine temperature difference heat exchange is small very
It is more, the characteristics of high efficiency low volume can guarantee to adjust saturation process after waste heat will not generate excessive BOG;One of heat source
Using the heat of steel cylinder return-air, reduce the BOG heat for returning to storage tank；The two of heat source absorb environment using using air temperature vaporizer
Heat, without additional energy；Air temperature vaporizer liquid shunts after coming from delivery pump, it is not necessary that power source is separately configured；Heat exchanger
Gas phase runner operating pressure is controlled by regulating valve B, be adjusted heating source natural gas whether phase transformation heat release；Two air temperatures of heat source
The amount of vaporization of formula vaporizer is controlled by regulating valve A, is accurately controlled air demand and then is controlled LNG heating temperature.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (6)
1. a kind of LNG filling is online to adjust saturation device, the liquified natural gas and liquid feeding of liquid filler are delivered to for changing delivery pump
Machine is transferred back to the gaseous natural gas temperature of storage tank, it is characterised in that: including controller, heat exchanger (1), air temperature type vaporizer (3),
Regulating valve A(4), regulating valve B(6), temperature sensor (2), pressure sensor (5), go liquid inlet pipe (71), go liquid outlet pipe (72),
Return-air inlet pipe (73), return-air outlet pipe (74) shunt inlet pipe (75) and shunt outlet pipe (76)；The heat exchanger (1) includes liquid phase stream
Road (11) and gas phase runner (12)；The delivery pump removes liquid inlet pipe (71), liquid phase runner (11), removes liquid outlet pipe (72) and liquid feeding
Machine is sequentially communicated；The liquid filler, return-air inlet pipe (73), gas phase runner (12), return-air outlet pipe (74) and storage tank are sequentially communicated；Institute
Liquid inlet pipe (71), shunting inlet pipe (75), air temperature type vaporizer (3), shunting outlet pipe (76) and return-air inlet pipe (73) is stated successively to connect
It is logical；Described that liquid outlet pipe (72) is gone to be equipped with temperature sensor (2), return-air inlet pipe (73) is equipped with pressure sensor (5), and return-air goes out
Manage (74) and be equipped with regulating valve B(6), shunt outlet pipe (76) and be equipped with regulating valve A(4)；The controller respectively with temperature sensing
Device (2), pressure sensor (5), regulating valve A(4) and regulating valve B(6) electrical connection.
2. a kind of LNG filling according to claim 1 is online to adjust saturation device, it is characterised in that: the heat exchanger (1) is
Plate heat exchanger, for the medium high efficient heat exchanging in liquid phase runner (11) and gas phase runner (12).
3. a kind of LNG filling according to claim 1 is online to adjust saturation device, it is characterised in that: the return-air inlet pipe
(73) it is equipped with safety valve, for avoiding return-air inlet pipe (73) interior hypertonia.
4. a kind of LNG filling according to claim 1 is online to adjust saturation device, it is characterised in that: the temperature sensor
(2) for monitoring temperature of the liquified natural gas after heat exchanger liquid phase runner (11) heat exchange, and temperature information is passed into control
Device processed, the controller according to temperature information control to adjust valve A(4) aperture.
5. a kind of LNG filling according to claim 4 is online to adjust saturation device, it is characterised in that: the pressure sensor
(5) for monitoring gaseous natural gas by the pressure before heat exchanger gas phase runner (12) heat exchange, and pressure information is passed into control
Device processed, the controller control to adjust valve B(6 according to pressure information and temperature information) aperture.
6. a kind of online control method for adjusting saturation of LNG filling, it is characterised in that: using a kind of LNG as described in claim 1
Filling is online to adjust saturation device, including fluid injection step, return-air step, increases that jia bombardier is rapid and heat exchange step；
The fluid injection step are as follows: delivery pump extracts liquified natural gas out of storage tank, liquified natural gas successively gone liquid inlet pipe (71),
Liquid phase runner (11) goes liquid outlet pipe (72) to liquid filler, and liquid filler is to vehicle steel cylinder fluid injection；
The return-air step are as follows: the gaseous natural gas in vehicle steel cylinder passes through liquid filler successively cooled via return air inlet pipe (73), gas phase stream
Road (12), return-air outlet pipe (74) to storage tank carry out return-air；
The increasing jia bombardier is rapid are as follows: goes the liquified natural gas in liquid inlet pipe (71) successively through shunting inlet pipe (75), air temperature type vaporizer
(3), outlet pipe (76) to return-air inlet pipe (73) are shunted；Liquified natural gas vaporization in air temperature type vaporizer (3), until return-air inlet pipe
(73) gaseous natural gas is had become when；The temperature sensor (2) is changed for monitoring liquified natural gas by liquid phase runner (11)
Temperature after heat, and temperature information is passed to controller, the controller controls to adjust valve A(4 according to temperature information) open
Degree；When temperature sensor (2) measuring temperature is low, need to be promoted liquified natural gas temperature, controller controls to adjust valve A(4)
Aperture increases, and improves gaseous natural gas through regulating valve A(4) to the supply of return-air inlet pipe (73)；
The heat exchange step are as follows: when temperature sensor (2) measuring temperature is low, need to be promoted liquified natural gas temperature, controller
Current saturation pressure setting value is set according to temperature information；The pressure sensor (5) is for monitoring gaseous natural gas by gas
Pressure before phase runner (12) heat exchange, and pressure information is passed into controller, the controller is controlled according to pressure information and is adjusted
Save valve B(6) aperture, it is ensured that pressure reaches saturation pressure setting value；Due to the gaseous natural gas in gas phase runner (12) at this time
Pressure reaches saturation pressure setting value, liquefies and releases latent heat；Liquid natural aspiration gas phase runner in liquid phase runner (11)
(12) heat released, temperature increase.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352828.6A CN110056764A (en) | 2019-04-29 | 2019-04-29 | A kind of LNG filling is online to adjust saturation device and control method |
| CN202020645395.1U CN212456267U (en) | 2019-04-29 | 2020-04-24 | LNG filling online saturation adjusting mechanism |
| CN202010336227.9A CN111765369A (en) | 2019-04-29 | 2020-04-24 | LNG filling online saturation adjusting mechanism and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910352828.6A CN110056764A (en) | 2019-04-29 | 2019-04-29 | A kind of LNG filling is online to adjust saturation device and control method |
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| CN110056764A true CN110056764A (en) | 2019-07-26 |
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| CN201910352828.6A Pending CN110056764A (en) | 2019-04-29 | 2019-04-29 | A kind of LNG filling is online to adjust saturation device and control method |
| CN202010336227.9A Pending CN111765369A (en) | 2019-04-29 | 2020-04-24 | LNG filling online saturation adjusting mechanism and control method |
| CN202020645395.1U Active CN212456267U (en) | 2019-04-29 | 2020-04-24 | LNG filling online saturation adjusting mechanism |
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| CN202010336227.9A Pending CN111765369A (en) | 2019-04-29 | 2020-04-24 | LNG filling online saturation adjusting mechanism and control method |
| CN202020645395.1U Active CN212456267U (en) | 2019-04-29 | 2020-04-24 | LNG filling online saturation adjusting mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197694A (en) * | 2020-01-06 | 2020-05-26 | 阜阳国祯燃气有限公司 | LNG steel cylinder filling device and method |
| CN114087537A (en) * | 2020-08-24 | 2022-02-25 | 安瑞科(廊坊)能源装备集成有限公司 | Temperature control device for LNG (liquefied Natural gas) filling and LNG filling method |
| CN114165729A (en) * | 2020-09-11 | 2022-03-11 | 安瑞科(廊坊)能源装备集成有限公司 | Online temperature adjusting device for LNG (liquefied Natural gas) filling and LNG filling method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056764A (en) * | 2019-04-29 | 2019-07-26 | 成都华气厚普机电设备股份有限公司 | A kind of LNG filling is online to adjust saturation device and control method |
| CN113357531B (en) * | 2021-05-21 | 2022-10-11 | 厚普清洁能源(集团)股份有限公司 | System and method capable of simultaneously filling LNG cold liquid and hot liquid |
| CN113639192B (en) * | 2021-10-14 | 2021-12-21 | 厚普清洁能源股份有限公司 | System for realizing LNG (liquefied Natural gas) online saturation adjustment by using BOG (boil off gas) and control method |
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| US5121609A (en) * | 1991-05-17 | 1992-06-16 | Minnesota Valley Engineering | No loss fueling station for liquid natural gas vehicles |
| US5771946A (en) * | 1992-12-07 | 1998-06-30 | Chicago Bridge & Iron Technical Services Company | Method and apparatus for fueling vehicles with liquefied cryogenic fuel |
| US5325894A (en) * | 1992-12-07 | 1994-07-05 | Chicago Bridge & Iron Technical Services Company | Method and apparatus for fueling vehicles with liquefied natural gas |
| JPH094799A (en) * | 1995-06-16 | 1997-01-07 | Chiyoda Corp | Heat-exchange system for low temperature liquefied gas |
| US5590535A (en) * | 1995-11-13 | 1997-01-07 | Chicago Bridge & Iron Technical Services Company | Process and apparatus for conditioning cryogenic fuel to establish a selected equilibrium pressure |
| DE10142757C1 (en) * | 2001-08-31 | 2003-04-17 | Messer Griesheim Gmbh | Refueling device and method for refueling cryofuel-powered vehicles |
| JP4275061B2 (en) * | 2004-12-22 | 2009-06-10 | 三菱重工業株式会社 | Fuel supply apparatus and LNG ship equipped with the same |
| US20080276627A1 (en) * | 2007-05-08 | 2008-11-13 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Fuel gas supply system and method of a ship |
| US9851052B2 (en) * | 2012-05-14 | 2017-12-26 | Hyundai Heavy Industries Co., Ltd. | Method and system for treating a liquefied gas |
| CN104819378B (en) * | 2015-05-13 | 2017-02-01 | 安徽省鸿申压缩机有限公司 | Liquefied natural gas (LNG) automobile liquid adding device |
| KR102619112B1 (en) * | 2017-01-06 | 2023-12-29 | 한화파워시스템 주식회사 | Fuel supply apparatus for liquefied natural gas carrier |
| CN110056764A (en) * | 2019-04-29 | 2019-07-26 | 成都华气厚普机电设备股份有限公司 | A kind of LNG filling is online to adjust saturation device and control method |
-
2019
- 2019-04-29 CN CN201910352828.6A patent/CN110056764A/en active Pending
-
2020
- 2020-04-24 CN CN202010336227.9A patent/CN111765369A/en active Pending
- 2020-04-24 CN CN202020645395.1U patent/CN212456267U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197694A (en) * | 2020-01-06 | 2020-05-26 | 阜阳国祯燃气有限公司 | LNG steel cylinder filling device and method |
| CN114087537A (en) * | 2020-08-24 | 2022-02-25 | 安瑞科(廊坊)能源装备集成有限公司 | Temperature control device for LNG (liquefied Natural gas) filling and LNG filling method |
| CN114165729A (en) * | 2020-09-11 | 2022-03-11 | 安瑞科(廊坊)能源装备集成有限公司 | Online temperature adjusting device for LNG (liquefied Natural gas) filling and LNG filling method |
| CN114165729B (en) * | 2020-09-11 | 2024-05-17 | 安瑞科(廊坊)能源装备集成有限公司 | Online temperature adjusting device for LNG filling and LNG filling method |
Also Published As
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| CN212456267U (en) | 2021-02-02 |
| CN111765369A (en) | 2020-10-13 |
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Application publication date: 20190726 |