EP3919803A1 - Steuerverfahren für flüssiggastransportbehälter, druckregelungssystem und transportwerkzeug - Google Patents
Steuerverfahren für flüssiggastransportbehälter, druckregelungssystem und transportwerkzeug Download PDFInfo
- Publication number
- EP3919803A1 EP3919803A1 EP20848148.1A EP20848148A EP3919803A1 EP 3919803 A1 EP3919803 A1 EP 3919803A1 EP 20848148 A EP20848148 A EP 20848148A EP 3919803 A1 EP3919803 A1 EP 3919803A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- pressure
- discharge
- road section
- liquefied gas
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 abstract description 62
- 239000003949 liquefied natural gas Substances 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
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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
- 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
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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
- 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/054—Size medium (>1 m3)
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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
- F17C2205/0332—Safety valves or pressure relief 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
- 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
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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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
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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
- F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
- F17C2223/042—Localisation of the removal point
- F17C2223/043—Localisation of the removal point in the gas
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
- F17C2250/034—Control means using wireless transmissions
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0473—Time or time periods
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0478—Position or presence
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0486—Indicating or measuring characterised by the location
- F17C2250/0491—Parameters measured at or inside the vessel
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0626—Pressure
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0689—Methods for controlling or regulating
- F17C2250/0694—Methods for controlling or regulating with calculations
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/07—Actions triggered by measured parameters
- F17C2250/072—Action when predefined value is reached
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/021—Avoiding over pressurising
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
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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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
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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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/044—Avoiding pollution or contamination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
- F17C2265/032—Treating the boil-off by recovery
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- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
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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
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0173—Railways
Definitions
- the present invention relates to a field of liquefied gas transport, and in particular to a control method, a pressure control system and a transport appliance of a liquefied gas transport container.
- the present invention aims to provide a control method, a pressure control system and a transport appliance of a liquefied gas transport container so as to solve the problems that in the prior art, pressure relief action of a liquefied natural gas tank is uncontrollable and occurs in special road sections, which influences transport safety.
- a control method of a liquefied gas transport container includes following steps: step S10, measuring a pressure in a container in real time and calculating a remaining time T1 for the pressure to reach a discharge pressure, and acquiring a time T2 for the container to reach a non-discharge road section in real time; and step S20, when T1 ⁇ T2, discharging gas when the pressure in the container reaches the discharge pressure, and when T1 ⁇ T2, discharging gas before the container reaches the non-discharge road section, so as to keep the pressure in the container being lower than the discharge pressure before the container leaves the non-discharge road section.
- a step of acquiring the time T2 for the container to reach the non-discharge road section in real time includes: obtaining the T2 according to a current geographic position of the container, a position of a non-discharge road section closest to a current position in a passage direction, and a moving speed of the container.
- the non-discharge road section includes one or more of a culvert, a station, and a town.
- the step S20 specifically includes: when T1 ⁇ T2, discharging gas whenever the pressure in the container reaches the discharge pressure, so as to reduce a unit pressure in the container; and when T1 ⁇ T2, discharging gas circularly from the container to reduce the unit pressure in the container until the pressure in the container can be lower than the discharge pressure before the container leaves a special road section.
- the step S20 specifically includes: obtaining a duration T3 for the container to pass through the special road section, and discharging, before the container enters the special road section, a pressure in the container to be lower than (P-p) or below according to a predicted pressure increase p in the container during the duration T3, wherein the P is preset discharge pressure.
- a pressure control system of a liquefied gas transport container is provided, the pressure control system is used for realizing the above control method, and the pressure control system includes: a controller, a pressure sensor, a positioning sensor and a driving structure, wherein the pressure sensor is arranged on an exhaust pipe of a liquefied gas transport container and connected to the controller, the positioning sensor is arranged on a transport appliance for liquefied gas and connected to the controller, and the driving structure is connected between the controller and a valve of the exhaust pipe.
- the pressure control system further comprises a remote server, the remote server being connected to the controller.
- the valve is a pneumatic valve
- the driving structure comprises a compressed gas cylinder and an electromagnetic valve
- the compressed gas cylinder is connected to the pneumatic valve
- the electromagnetic valve is connected to the controller to control the compressed gas cylinder to be opened/closed.
- a transport appliance includes a container for transporting liquefied gas and a pressure control system, wherein the pressure control system is the above pressure control system.
- gas which influences safety or lives of residents is discharged before the transport container enters the non-discharge road section, and no gas is discharged in the non-discharge road section, so that the risk of explosion caused by gas accumulation is effectively reduced, and the influence on the lives of surrounding residents is reduced.
- Fig. 1 shows a structural schematic diagram of an embodiment of a pressure control system of a liquefied gas transport container according to the present invention.
- the drawings include the following reference numerals: 1, pressure sensor; 2, positioning sensor; 3, explosion-proof connection pipe; 4, controller; 5, remote server; 6, pressure sensor; 7, compressed gas cylinder; 8, electromagnetic valve; 9, pneumatic pipeline; 10, pneumatic valve; 11, exhaust pipe; 12, container; 13, terminal.
- the disclosure provides a control method of a liquefied gas transport container and a pressure control system of a liquefied gas transport container capable of realizing the control method, and as shown in Fig. 1 , the pressure control system of the present embodiment includes: a controller 4, a pressure sensor 1, a positioning sensor 2 and a driving structure, wherein the pressure sensor 1 is arranged on an exhaust pipe of a liquefied gas transport container and connected to the controller 4 by an explosion-proof connection pipe 3, the positioning sensor 2 is arranged on a transport appliance of liquefied gas and connected with the controller 4, and the driving structure is connected between the controller 4 and a valve of the exhaust pipe.
- the controller 4 may control the driving structure to act according to feedback information of the pressure sensor 1 and the positioning sensor 2, thereby controlling the valve on the exhaust pipe to be opened/closed so as to discharge gas and relieve pressure from the liquefied gas transport container.
- the liquefied gas transport container of the present embodiment is suitable for liquefied natural gas with a combustion characteristic, and is also suitable for other products such as frozen liquefied gas, high-pressure liquefied gas, low-pressure liquefied gas, compressed gas and common liquid with volatilization characteristics.
- the control method for the liquefied gas transport container of the present embodiment includes the following steps:
- the non-discharge road section here refers to road sections with relatively closed space or crowded population, such as a culvert, a station, a bridge and a town, where gas discharge and pressure relief may cause the gas accumulation, increase risk of explosion or influence lives of surrounding residents. Therefore, the disclosure provides the above control method to avoid the above situation.
- the remaining time T1 for the pressure in the tank to reach the discharge pressure may be estimated by means of thermodynamic calculation such as heat transfer calculation.
- T1 ⁇ T2 the pressure in the transport container may reach the discharge pressure before the container reaches the above non-discharge road section, and at this moment, the gas may be discharged to relieve the pressure in a common mode.
- T1 ⁇ T2 the pressure in the transport container may reach the discharge pressure after the container enters the above non-discharge road section, and if the gas may be discharged to relieve the pressure in a common mode, the dangerous situation mentioned above will occur, so the pressure of the container should be relieved in advance.
- the transport container automatically discharges the gas which influences the safety or the lives of residents before the transport container enters the non-discharge road section, and prevents the gas from being discharged in the non-discharge road section, so that the risk of explosion caused by the gas accumulation is effectively reduced, and the influence on the lives of surrounding residents is reduced.
- the step of acquiring the time T2 for the container to reach the non-discharge road section in real time includes the following steps that the T2 is obtained according to a current geographic position of the container, a position of a non-discharge road section closest to the current position in a passage direction, and a moving speed of the container.
- a real-time position of the container may be realized by systems with a satellite positioning function, such as Beidou and GPS Galileo, and the map information may use Baidu Map, Gaode Map or other map information.
- Step S20 in the present embodiment specifically includes the following steps that when T1 ⁇ T2, the gas is discharged whenever the pressure of the container reaches the discharge pressure, unit pressure in the container is reduced, after the container moves for a period of time, when the pressure in the container rises to the discharge pressure again, gas is discharged from the container again to relieve pressure, and these steps are repeated, so that the pressure in the container is kept lower than the discharge pressure.
- T1 ⁇ T2 the container discharges the gas circularly to reduce the unit pressure in the container every time, till the pressure in the container can be kept lower than the discharge pressure before the container leaves a special road section.
- the discharge pressure P may be preset according to a physical characteristic of the container and characteristics of contents of the container, a pressure increase p in the container in the process of passing through the non-discharge road section of the container can be calculated according to a length of the non-discharge road section, the time T3 to pass through the non-discharge road section calculated by a current vehicle speed, and the heat transfer, and therefore, when T1 ⁇ T2, the pressure in the container should be reduced to (P-p) or below before the container enters the non-discharge road section.
- the two non-discharge road sections may be treated as one non-discharge road section to ensure that the pressure in the container cannot reach the discharge pressure in the process of passing through the two non-discharge road sections of the container and ensure safety.
- the valve is a pneumatic valve 10
- the driving structure includes a compressed gas cylinder 7 and an electromagnetic valve 8, the compressed gas cylinder 7 is connected with the pneumatic valve 10 by a pneumatic pipeline 9, and the electromagnetic valve 8 is connected with the controller 4 to control the compressed gas cylinder 7 to be opened/closed.
- the controller 4 controls the electromagnetic valve to open, compressed gas is ejected from the compressed gas cylinder to push the pneumatic valve 10 to open, and then the gas in the container 12 is discharged from the exhaust pipe 11, so that the pressure in the container decreases.
- the driving structure may also control the gas discharge in other structural forms.
- the compressed gas cylinder 7 of the present embodiment is provided with a pressure sensor 6.
- the pressure control system of the present embodiment further includes a remote server 5, and a terminal 13 may be in wireless connection with the controller 4 by the remote server 5, so that the transport container can be monitored and controlled remotely.
- the terminal 13 may be a computer, or even mobile terminals such as a mobile phone and a tablet computer.
- the disclosure further provides a transport appliance, which includes a container for transporting liquefied gas and a pressure control system, wherein the pressure control system is the pressure control system including the above part or all of technical features.
- the transport appliance of the disclosure may be a train for railway transportation, a car and a tank car for road transportation, a ship for sea transportation, and a container for combined transportation of road, railway, sea, etc.
- the transport appliance of the disclosure has the advantages of high safety and less influence on a passage residential environment.
- gas which influences safety or lives of residents is discharged before the transport container enters the non-discharge road section, and no gas is discharged in the non-discharge road section, so that the risk of explosion caused by gas accumulation is effectively reduced, and the influence on the lives of surrounding residents is reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201910684313.6A CN110454681B (zh) | 2019-07-26 | 2019-07-26 | 液化气体运输容器的控制方法、压力控制系统及运输工具 |
PCT/CN2020/101679 WO2021017802A1 (zh) | 2019-07-26 | 2020-07-13 | 液化气体运输容器的控制方法、压力控制系统及运输工具 |
Publications (4)
Publication Number | Publication Date |
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EP3919803A1 true EP3919803A1 (de) | 2021-12-08 |
EP3919803A4 EP3919803A4 (de) | 2022-05-18 |
EP3919803B1 EP3919803B1 (de) | 2023-06-14 |
EP3919803C0 EP3919803C0 (de) | 2023-06-14 |
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Application Number | Title | Priority Date | Filing Date |
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EP20848148.1A Active EP3919803B1 (de) | 2019-07-26 | 2020-07-13 | Steuerverfahren, drucksteuersystem und transportvorrichtung eines transportbehälters für verflüssigtes gas |
Country Status (5)
Country | Link |
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EP (1) | EP3919803B1 (de) |
CN (1) | CN110454681B (de) |
EA (1) | EA202192136A1 (de) |
ES (1) | ES2953091T3 (de) |
WO (1) | WO2021017802A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110454681B (zh) * | 2019-07-26 | 2020-10-02 | 中车齐齐哈尔车辆有限公司 | 液化气体运输容器的控制方法、压力控制系统及运输工具 |
CN113867220B (zh) * | 2021-10-12 | 2023-12-29 | 中科海微(北京)科技有限公司 | 密封罐体监测系统及其监测方法 |
CN115199941B (zh) * | 2022-08-25 | 2023-07-14 | 江南造船(集团)有限责任公司 | 一种液货舱的围护系统及其控制方法 |
CN117436711B (zh) * | 2023-12-20 | 2024-04-02 | 深圳市兰洋科技有限公司 | 一种基于物联网液化气钢瓶监管系统及监管方法 |
Family Cites Families (19)
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DE3417269A1 (de) * | 1984-05-10 | 1985-11-14 | LGA Gastechnik GmbH, 5480 Remagen | Sicherheitseinrichtung fuer fluessiggastanks |
JPH08310482A (ja) * | 1995-05-18 | 1996-11-26 | Hitachi Zosen Corp | 輸送船のガス貯留タンクの置換ガス供給部構造 |
JPH11166698A (ja) * | 1997-12-02 | 1999-06-22 | Nippon Air Liquide Kk | ガス漏れ検知装置 |
JP2005280973A (ja) * | 2004-03-31 | 2005-10-13 | Chugoku Electric Power Co Inc:The | バルクコンテナの管理方法 |
CN102954346B (zh) * | 2011-08-17 | 2015-05-20 | 总装备部工程设计研究总院 | 一种低温绝热移动贮罐安全系统 |
FR2994288B1 (fr) * | 2012-08-01 | 2015-04-03 | Air Liquide | Procede et dispositif de controle de la pression au sein d'un reservoir d'hydrogene |
US20140165568A1 (en) * | 2012-12-14 | 2014-06-19 | Electro-Motive Diesel, Inc. | Energy Recovery System for a Mobile Machine |
US9604655B2 (en) * | 2013-08-22 | 2017-03-28 | General Electric Company | Method and systems for storing fuel for reduced usage |
FR3013672A1 (fr) * | 2013-11-26 | 2015-05-29 | Gdf Suez | Methode d'aide a l'exploitation d'un navire de transport |
US10328790B2 (en) * | 2014-06-18 | 2019-06-25 | Volvo Truck Corporation | Safety arrangement for a vehicle tank |
CN104896304B (zh) * | 2015-06-08 | 2017-03-08 | 江苏省特种设备安全监督检验研究院张家港分院 | 车载液化天然气罐液位的压力监测方法 |
CN205026392U (zh) * | 2015-09-06 | 2016-02-10 | 天津宏昊源科技有限公司 | Lng运输车 |
SE540578C2 (en) * | 2015-12-08 | 2018-10-02 | Scania Cv Ab | A method and a system for determining time data relating to a non-combustion outlet process of a fuel gas from a gas tank in a vehicle |
FR3045775B1 (fr) * | 2015-12-18 | 2018-07-06 | Engie | Procede et systeme pour calculer en temps reel la duree d'autonomie d'une cuve non refrigeree contenant du gnl |
CN107314238A (zh) * | 2016-04-26 | 2017-11-03 | 合肥艾普拉斯环保科技有限公司 | 一种防爆储罐 |
CN106151875A (zh) * | 2016-07-31 | 2016-11-23 | 徐州易高中泰新能源有限公司 | 一种带故障自诊断功能的远程控制式煤气球罐 |
SE541351C2 (en) * | 2017-12-07 | 2019-08-13 | Scania Cv Ab | An indoor safety device, a liquefied fuel gas system and a vehicle |
CN109205087A (zh) * | 2018-10-15 | 2019-01-15 | 申朋雨 | 一种基于gps的高稳定性运输容器 |
CN110454681B (zh) * | 2019-07-26 | 2020-10-02 | 中车齐齐哈尔车辆有限公司 | 液化气体运输容器的控制方法、压力控制系统及运输工具 |
-
2019
- 2019-07-26 CN CN201910684313.6A patent/CN110454681B/zh active Active
-
2020
- 2020-07-13 EP EP20848148.1A patent/EP3919803B1/de active Active
- 2020-07-13 EA EA202192136A patent/EA202192136A1/ru unknown
- 2020-07-13 ES ES20848148T patent/ES2953091T3/es active Active
- 2020-07-13 WO PCT/CN2020/101679 patent/WO2021017802A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
EP3919803B1 (de) | 2023-06-14 |
WO2021017802A1 (zh) | 2021-02-04 |
CN110454681B (zh) | 2020-10-02 |
EP3919803A4 (de) | 2022-05-18 |
EP3919803C0 (de) | 2023-06-14 |
CN110454681A (zh) | 2019-11-15 |
EA202192136A1 (ru) | 2021-12-13 |
ES2953091T3 (es) | 2023-11-08 |
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