GB2264271A - Safety system for a liquefied gas bulk tanker vehicle. - Google Patents

Safety system for a liquefied gas bulk tanker vehicle. Download PDF

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Publication number
GB2264271A
GB2264271A GB9202287A GB9202287A GB2264271A GB 2264271 A GB2264271 A GB 2264271A GB 9202287 A GB9202287 A GB 9202287A GB 9202287 A GB9202287 A GB 9202287A GB 2264271 A GB2264271 A GB 2264271A
Authority
GB
United Kingdom
Prior art keywords
transfer
gas
safety system
door
safety
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
GB9202287A
Other versions
GB2264271B (en
GB9202287D0 (en
Inventor
Paul O'connell
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.)
RUSTSUN Ltd
Original Assignee
RUSTSUN 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 RUSTSUN Ltd filed Critical RUSTSUN Ltd
Priority to GB9202287A priority Critical patent/GB2264271B/en
Priority to BE9200175A priority patent/BE1003891A7/en
Publication of GB9202287D0 publication Critical patent/GB9202287D0/en
Publication of GB2264271A publication Critical patent/GB2264271A/en
Application granted granted Critical
Publication of GB2264271B publication Critical patent/GB2264271B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
    • B60P3/226—Arrangements of access openings or covers therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/083—Mounting arrangements for vessels for medium-sized mobile storage vessels, e.g. tank vehicles or railway tank vehicles
    • 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
    • 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
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal main axis
    • 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)
    • 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
    • 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
    • F17C2250/0605—Parameters
    • F17C2250/0636—Flow or movement of content
    • 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
    • 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
    • F17C2270/0171—Trucks

Abstract

A lock bolt 20 operated by a ram 21 activated by a push button engages in a hole 22 in the safety access door 15 of a gas transfer cabinet Sat the rear of the vehicle. An automatically operated safety micro switch 40 has a spring loaded arm which is movable from an inactive position when the door 15 is closed to an active position when the door 15 is opened. When the switch 40 is activated the vehicle brakes are automatically engaged so that the vehicle cannot move during gas transfer. An emergency shut down system including local push button activating switches is primed on opening of a gas transfer control valve 1() for overriding the control system and shutting down transfer in the event of an emergency. <IMAGE>

Description

A Liquefied Gas Transfer and Safety System.
The invention relates to a transfer and safety system, more particularly to a liquified gas bulk tanker transfer and safety system.
Bulk liquified gas presents a substantial hazard particularly when being transferred to and from bulk gas tankers.
Various safety systems have been developed to try to ensure the safe transfer of bulk liquified gas, however, there is a need for an improved safety system and method of liquified gas transfer.
This invention is directed towards providing such an improved safety system and transfer method.
According to the invention there is provided a liquified gas bulk tanker transfer and safety system for a tanker comprising a wheeled vehicle including a vessel for liquified gas, driver cab, an engine including a power take off unit for operating a pump for transfer of liquified gas to and from the vessel, brakes for the vehicle wheels, and a gas transfer cabinet at the rear of the vehicle, a gas control valve, a hose for transfer of gas being mounted in the transfer -cabinet which is closed by a safety access door, the safety system including a vessel for liquified gas, a driver cab, an engine including a power take off unit for operating a pump for transfer of liquified gas to and from the vessel, brakes for the vehicle wheels, and a gas transfer cabinet at the rear of the vehicle, a gas control valve, a hose for transfer of gas being mounted in the transfer cabinet which is closed by a safety access door, the safety system including safety switch means which is operated on opening of the safety access door to engage the vehicle brakes to prevent movement of the vehicle during gas transfer.
In one embodiment of the invention the system includes a safety lock for the access door. Preferably the safety lock comprises a lock bolt, operating means for operating the lock bolt and actuating means for the operating means. Typically the operating comprises a ram. In a preferred arrangement the actuating means comprises a manually operated switch mounted adjacent to the gas transfer cabinet. Preferably the manually operated switch comprises a push button switch mounted externally of and adjacent to the gas transfer cabinet.
In another embodiment of the invention the safety switch means comprises a position sensor which is operated on opening of the gas transfer cabinet access door to engage the vehicle brakes. Preferably the position sensor comprises a micro switch having a spring loaded arm engageable with the access door when the door is closed, the arm being released to activate the switch when the door is opened.
In a particularly preferred embodiment of the invention the system includes an emergency shut-down system which is provided an opening of the gas transfer control vale for emergency override of the safety system. Preferably the emergency shut-down system includes a plurality of local switch means at different locations on the vehicle for ease of actuation by an operator for emergency shut-down of gas transfer.
In a further embodiment of the invention the system includes an electrical shut-down switch means which is charged when the control valve is opened to facilitate immediate shut-down in the event of an emergency.
In one embodiment of the invention the system includes a power take off throttle located in the gas transfer cabinet, the throttle being switched on to a preselected transfer rate on engaging of the power take off unit.
The invention also provides a method of transferring liquified gas using the safety system of the invention, the method comprising the steps of: locating the tanker adjacent to a transfer point; applying the vehicle handbrake; opening the transfer cabinet door by operating a door lock switch; automatically engaging the vehicle brakes on opening of the cabinet door and maintaining the vehicle brakes engaged while the cabinet door is open; providing earth cable and delivery hose connections; opening the gas transfer control valve; opening the valves between the tanker and the transfer point; engaging the power take off unit to commence pumping of liquified gas; on completion of gas transfer, closing the control valve; disengaging the power take off unit; closing the valves between the tanker and transfer point; disconnecting the delivery hose and earth reel;; closing the cabinet door, and resetting the safety system to engage the cabinet door lock and release the vehicle brakes.
In one embodiment of the invention the method includes the step of providing an emergency shut-down system on opening of the gas transfer control valve.
In a further embodiment of the invention the method includes the step of switching on a power take off throttle to a preselected delivery rate on engaging the power take off unit to commence pumping.
The invention will be more clearly understood from the following description thereof given by way of example only with reference to the accompanying drawings, in which: Fig. 1 is a side view of a liquified gas bulk tanker incorporating the transfer and safety system of the invention, Fig. 2 is a view from the other side of the tanker of Fig. 1, Fig. 3 is a plan view of the tanker, Fig. 4 is a rear view of the tanker, Fig. 5 is a perspective view of a gas transfer cabinet of the tanker, Fig. 6 is a view of a detail of the cabinet of Fig. 5, Fig. 7 is a respective view of another detail of the cabinet of Fig. 5, Fig. 8 is a side view of the detail of Fig. 7 in a different position of use, Fig. 9 is a diagrammatic view of the safety system, and Figs. 10A and 10 B are schematic flow charts illustrating the operation of the system.
Referring to the drawings and initially to Figs. 1 to 8 thereof, there is illustrated a liquified gas bulk tanker in this case comprising a wheeled rigid vehicle 1 including a pressure vessel 2 for liquified gas, a driver cab 3 and an engine including a power take off unit for operating a pump for transfer of liquified gas to and from the pressure vessel 2. The vehicle also includes brakes for the vehicle wheels, a handbrake and a gas transfer cabinet 5 at the rear of the vehicle. A gas control valve, generally a Fisher valve 10, a hose 11, a manually operated throttle valve 12 for the power take off unit and a flow meter 13 are all mounted in the transfer cabinet 5.
The cabinet 5 is closed by a safety access door 15 which is moveable from the closed position illustrated in Fig. 6 and 8 to the open position illustrated in Figs. 4, 5 and 7 to permit access to the various components mounted in the transfer cabinet 5 for transfer of liquified gas to and from the pressure vessel 2.
The safety system according to the invention includes a safety lock for the door 15 which comprises a lock bolt 20 operated by an operating means, in this case a ram 21 to engage, in a closed position, through a hole 22 in the door 15 to retain the door in the closed position. The ram 21 of the safety lock bolt 20 is operated by an actuating means comprising a manual push button switch 36 located externally on one side of the transfer cabinet 5. A manually operated external auxiliary bolt 30 is also provided for engagement with a corresponding eye 31 on the door 15. The manual lock also includes a padlock which further prevents unauthorised access to the gas transfer cabinet 5.
The door 15 is a shutter type door which is mounted in enclosed side guide rails 35 at both sides of the gas transfer cabinet 5.
An automatically operated safety switch means comprising a proximity sensor in this case a micro switch 40 is provided adjacent the side rail 35 at one side of the gas transfer cabinet 5. The switch 40 includes a spring loaded actuating arm which is movable from the inactive position when the door 15 is closed as illustrated in Fig. 8 to an active position when the door is opened. When the switch 40 is activated the vehicle brakes are automatically engaged so that the vehicle cannot move during gas transfer.
Mounted in the cab 3 of the vehicle is a reset button 43, a power take off unit operating button 44 and various indicators including a power take off unit engaged indicator light 45 and a transfer cabinet door open indicator light 46. A control box 49 is mounted adjacent a cab 3 on one side thereof and an electric master switch 50 is mounted at the other side of the tanker end adjacent the cab 3.
The control system includes an emergency shut-down system including emergency shut-down switches 51 located on both sides of the tanker at the front and rear ends thereof and also in the cab 3 for emergency shut-down of the transfer system in the event of hazard conditions arising. The emergency shut-down system operates independently of and overrides the safety system in the event that any of the switches 51 are operated.
Referring to Fig. 9, the control circuit for the safety system and emergency shut-down system comprises the following main components which are connected as illustrated: double acting pneumatic cylinder for Fisher valve 40mm/160 mm stroke; double acting pneumatic cylinder for engine shut-down, 20mm/50mm stroke; double acting pneumatic cylinder for throttle 20mm/50mm stroke; double acting pneumatic cylinder for door bolt 25mm/100mm stroke; flow control valves for above; filter regulator; shuttle valves; double pilot valve five port, two positions, with manual override and silencers, for vehicle brakes; 3 port, 2 position toggle switch for Fisher valve control; 3 port, 2 position roller valve for roller shutter door; push button, 3 port detent lock value for E.S.D; pneumatic electric relay for cab light; pneumatic electric relay for master switch; 3 port flush type push button spring return for reset; red pneumatic visual indicator; 3 port spool valves with reset port for throttle, P.T.O., and door ram; regulator/flow control for override switch; detector switch for engine override; various manifolds, bushes, elbows, nipples, straight connectors, plugs, y piece, bulkhead connectors and tubing are also provided as illustrated.
In operation, and referring to Fig. 10 to transfer liquified gas using the safety system of the invention, the operator first locates the tanker adjacent to a transfer point which may be either a delivery point for delivery of bulk gas to a customer or a receiving point for receiving bulk gas from large storage tanks. The operator then applies the vehicle handbrake in the cab and by observing the indicator lights, and if necessary operating the switch in the cab, ensures that the power take off unit is disengaged.
The operator then proceeds to the transfer cabinet 5 and opens the transfer cabinet door 15 by operating the push button switch 36 which operates the ram 21 to withdraw the bolt 20 from the hole 22 in the door 15. The manual external lock is also released and the door is opened by sliding it upwardly in the side rails 35 illustrated in Fig. 5. As the door 15 is opened the switch 40 is deactivated which causes the spring brakes on the road tanker to be automatically engaged. The brakes remain engaged until the cabinet door is again closed.
When the door opens the indicator lights in the cab indicating that the door lock is opened.
The operator then connects the earth cable and delivery hoses and the Fisher valve 20 is moved to the on position. This energises all the emergency shut-down valves and an engine rpm override is also energised. The vehicle spring brakes are also engaged, the Fisher valve on the tank outlet connection is opened and the power take off pneumatic selection valve is charged ready to operate. In addition, the electrical shutdown and engine shut-down are set to a mode for emergency shut-down if required.
The operator then opens the valves between the road tanker and the transfer point. At this stage the operator returns to the vehicle cab 3 to engage the power take off unit by operating the switch 44. When the power take off is engaged the indicator light will be energised in the cab. The operator then returns to the transfer cabinet 5 and operates the hand throttle power take off control valve 12 to a preset level for a selected discharge of gas from the tank. In the event of the set transfer rate being exceeded the pneumatic control system override operates to shut-down the engine and the control valve. The safety system may only be reset by shutting down all operations including rewind of hose and closing of the cabinet door 15 to recommence the safety sequence outlined above.
When the transfer of liquified gas is completed, the Fisher valve 10 is set to the closed position, closing the gas control valve and the power take off unit is also disengaged.
The vehicle spring brakes remain energised at this stage.
The valves between the road tanker and the customers delivery point are closed and the delivery hose and earth reel are disconnected.
The door 15 of the transfer cabinet 5 is then closed and the operator returns to the cab 3 to check that the power take off indicator light and cabinet door warning light are deenergised. The operator then engages the reset button 43 which operates the ram 21 to extend the door bolt 20 and the vehicle brakes are disengaged.
In loading a tanker the method outlined above is repeated with the exception that in this case the power take off unit is not used, and on opening of the door 15 the vehicle brakes only are engaged.
Many variations on the specific embodiments of the invention described may be readily apparent and accordingly, the invention is not limited to the embodiments hereinbefore described which may be varied in both construction and detail.

Claims (18)

1. A liquified gas bulk tanker transfer and safety system for a tanker comprising a wheeled vehicle including a vessel for liquified gas, a driver cab, an engine including a power take off unit for operating a pump for transfer of liquified gas to and from the vessel, brakes for the vehicle wheels, and a gas transfer cabinet at the rear of the vehicle, a gas control valve, a hose for transfer of gas being mounted in the transfer cabinet which is closed by a safety access door, the safety system including safety switch means which is operated on opening of the safety access door to engage the vehicle brakes to prevent movement of the vehicle during gas transfer.
2. A safety system as claimed in claim 1, wherein the system includes a safety lock for the access door.
3. A safety system as claimed in claim 2, wherein the safety lock comprises a lock bolt, operating means for operating the lock bolt and actuating means for the operating means.
4. A safety system as claimed in claim 3, wherein the operating means comprises a ram.
5. A safety system as claimed in claim 3 or 4, wherein the actuating means comprises a manually operated switch mounted adjacent to the gas transfer cabinet.
6. A safety system as claimed in claim 5, wherein the manually operated switch comprises a push button switch mounted externally of and adjacent to the gas transfer cabinet.
7. A safety system as claimed in any preceding claim wherein the safety switch means comprises a position sensor which is operated on opening of the gas transfer cabinet access door to engage the vehicle brakes.
8. A safety system as claimed in claim 7, wherein the position sensor comprises a micro switch having a spring loaded arm engageable with the access door when the door is closed, the arm being released to activate the switch when the door is opened.
9. A safety system as claimed in any preceding claim including an emergency shut-down system which is provided on opening of the gas transfer control valve for emergency override of the safety system.
10. A safety system as claimed in claim 9, wherein the emergency shut-down system includes a plurality of local switch means at different locations on the vehicle for ease of actuation by an operator for emergency shut-down of gas transfer.
11. A safety system as claimed in any preceding claim, wherein the system includes an electrical shut-down switch means which is charged when the control valve is opened to facilitate immediate shut-down in the event of an emergency.
12. A safety system as claimed in any preceding claim, wherein the system includes a power take off throttle located in the gas transfer cabinet, the throttle being switched on to a preselected transfer rate on engaging of the power take off unit.
13. A safety system substantially as hereinbefore described with reference to the accompanying drawings.
14 A method of transferring liquified gas using the safety system as claimed in any preceding claim comprising the steps of: locating the tanker adjacent to a transfer point; applying the vehicle handbrake; opening the transfer cabinet door by operating a door lock switch; automatically engaging the vehicle brakes on opening of the cabinet door and maintaining the vehicle brakes engaged while the cabinet door is open; providing earth cable and delivery hose connections, opening the gas transfer control valve; opening the valves between the tanker and the transfer point; engaging the power take off unit to commence pumping of liquified gas; on completion of gas transfer, closing the control valve; and disengaging the power take off unit; closing the valves between the tanker and transfer point; disconnecting the delivery hose and earth reel; closing the cabinet door, and resetting the safety system to engage the cabinet door lock and release the vehicle brakes.
15. A method as claimed in claim 14, wherein the method includes the step of providing an emergency shut-down system on opening of the gas transfer control -valve.
16. A method as claimed in claim 14 or 15 wherein the method includes the step of switching on a power take off throttle to a preselected delivery rate on engaging the power take off unit to commence pumping.
17. A method of transferring liquified gas substantially as hereinbefore described with reference to the accompanying drawings.
18. Liquified gas whenever transferred by a method as claimed in any of claims 14 to 17.
GB9202287A 1992-02-04 1992-02-04 A Liquified gas transfer and safety system Expired - Lifetime GB2264271B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9202287A GB2264271B (en) 1992-02-04 1992-02-04 A Liquified gas transfer and safety system
BE9200175A BE1003891A7 (en) 1992-02-04 1992-02-20 Transfer system and security for liquefied gas.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9202287A GB2264271B (en) 1992-02-04 1992-02-04 A Liquified gas transfer and safety system

Publications (3)

Publication Number Publication Date
GB9202287D0 GB9202287D0 (en) 1992-03-18
GB2264271A true GB2264271A (en) 1993-08-25
GB2264271B GB2264271B (en) 1995-04-05

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Family Applications (1)

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GB (1) GB2264271B (en)

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US5434082A (en) * 1990-08-06 1995-07-18 Sanwa Kagaku Kenkyusho Co., Ltd Early diagnosis of mastitis or garget
ES2149727A1 (en) * 1999-02-18 2000-11-01 Unilever Nv Method and apparatus for distributing ice cream
FR2820728A1 (en) * 2001-02-15 2002-08-16 Bongrain Sa MILK COLLECTION TANK
WO2010078881A1 (en) * 2008-12-17 2010-07-15 Central Welding Limited A pump system for a vehicle
WO2014031999A3 (en) * 2012-08-24 2015-08-06 Oscomp Systems Inc. Virtual gaseous fuel pipeline
EP4023494A1 (en) * 2021-01-04 2022-07-06 Cryolor Société Anonyme Flammable fluid delivery vehicle

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WO1996005996A1 (en) * 1994-08-22 1996-02-29 Ani Mining Services Pty. Ltd. Vehicle for underground mine shafts
AU692588B2 (en) * 1994-08-22 1998-06-11 Ani Mining Services Pty. Ltd. Vehicle for underground mine shafts
CN114454833A (en) * 2022-04-12 2022-05-10 浙江工业大学 Long tube trailer safety interlocking system for hydrogen transportation and control method thereof

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US5434082A (en) * 1990-08-06 1995-07-18 Sanwa Kagaku Kenkyusho Co., Ltd Early diagnosis of mastitis or garget
ES2149727A1 (en) * 1999-02-18 2000-11-01 Unilever Nv Method and apparatus for distributing ice cream
FR2820728A1 (en) * 2001-02-15 2002-08-16 Bongrain Sa MILK COLLECTION TANK
EP1232906A1 (en) * 2001-02-15 2002-08-21 Bongrain S.A. Milk collecting tank
WO2010078881A1 (en) * 2008-12-17 2010-07-15 Central Welding Limited A pump system for a vehicle
GB2478890A (en) * 2008-12-17 2011-09-21 Central Welding Ltd A pump system for a vehicle
GB2478890B (en) * 2008-12-17 2013-10-16 Central Welding Ltd A pump system for a vehicle
WO2014031999A3 (en) * 2012-08-24 2015-08-06 Oscomp Systems Inc. Virtual gaseous fuel pipeline
US9863581B2 (en) 2012-08-24 2018-01-09 Nearshore Natural Gas, Llc Virtual gaseous fuel pipeline
US10890294B2 (en) 2012-08-24 2021-01-12 Nearshore Natural Gas, Llc Virtual gaseous fuel pipeline
EP4023494A1 (en) * 2021-01-04 2022-07-06 Cryolor Société Anonyme Flammable fluid delivery vehicle
FR3118614A1 (en) * 2021-01-04 2022-07-08 Cryolor Flammable fluid delivery vehicle
US11541802B2 (en) 2021-01-04 2023-01-03 Cryolor Vehicle for delivering inflammable fluid

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GB2264271B (en) 1995-04-05
BE1003891A7 (en) 1992-07-07
GB9202287D0 (en) 1992-03-18

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