WO1999032395A1 - Procede et dispositif servant a ajouter un additif sur place a un liquide transporte par un camion-citerne - Google Patents

Procede et dispositif servant a ajouter un additif sur place a un liquide transporte par un camion-citerne Download PDF

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Publication number
WO1999032395A1
WO1999032395A1 PCT/IE1998/000112 IE9800112W WO9932395A1 WO 1999032395 A1 WO1999032395 A1 WO 1999032395A1 IE 9800112 W IE9800112 W IE 9800112W WO 9932395 A1 WO9932395 A1 WO 9932395A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive
dosing
tank
compartments
truck
Prior art date
Application number
PCT/IE1998/000112
Other languages
English (en)
Inventor
Brian Francis Mooney
Original Assignee
Cassiano Limited
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 Cassiano Limited filed Critical Cassiano Limited
Priority to AU16809/99A priority Critical patent/AU1680999A/en
Publication of WO1999032395A1 publication Critical patent/WO1999032395A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/74—Devices for mixing two or more different liquids to be transferred
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/74—Devices for mixing two or more different liquids to be transferred
    • B67D2007/745—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level
    • B67D2007/748—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level by mixing fuel with additives, e.g. anti-knocking agents

Definitions

  • the present invention relates to a method and apparatus for on board adding of an additive to a fluid carried on a tanker truck.
  • the invention relates particularly, although not exclusively, to on board adding of performance additives to oils, such as petrol or diesel oil, on tanker trucks with separate tank compartments. Adding of an additive is also referred to as dosing.
  • Performance additives are most commonly added to oils such as petrol or diesel oil, hereafter collectively referred to as oil, before the oil is loaded onto the tanker truck,
  • oil an oil distributor may sometimes prefer to add such additives on board the tanker truck. This may arise where the distributor wishes to have direct control over the quality of the dosing process or where the distributor wishes to reduce his dependence on the primary supplier of the base oil product.
  • oil tanker trucks typically have about six or seven separate compartments. When they discharge oil into the storage tanks at the delivery site, usually about three compartments on the truck are discharged simultaneously in order to shorten the time taken for delivery.
  • the truck is typically provided with two additive storage tanks, one for petrol additive and one for diesel additive.
  • Each tank is connected to each of the compartments of the tanker truck by manifolded branch lines or pipes which enter the discharge pipe of each compartment.
  • Each of the branch lines entering the discharge pipes is provided with its own largely independent pneumatic injection pump and pneumatic control system.
  • the control system comprises pneumatic counters which, when initiated, provide a fixed number of strokes of the pump which accordingly pumps a fixed quantity of additive. This fixed quantity typically corresponds to the quantity required for a full compartment of oil.
  • the dosing system is automatically operated and doses the fixed quantity into the oil when the oil in the compartment is being discharged into the storage tank at the delivery site.
  • the system is duplicated on the truck for each of the additives to avoid cross contamination in the pumps and lines.
  • Pneumatic equipment is used for the control system because safety regulations do not usually permit the use of electrical equipment when discharging petrol.
  • This type of system has several disadvantages. Firstly, it requires two pumps and two control systems for each of the tank compartments. This is costly and complicated. Secondly, pneumatic control equipment can be unreliable when used with a truck compressed air system where it is difficult to maintain consistent air quality. Thirdly, pneumatic components are limited in their ability to control and record information. Fourthly, the addition of the additive through entries made into the discharge pipes presents a potential hazard because the entire compartment contents could be discharged onto the roadway if the entries or lines ruptured or leaked. Fifthly, the addition of a fixed amount of additive when discharging oil from a compartment causes the oil to be over dosed when the compartment is not full. This in turn gives rise to several problems. It is wasteful of additive, which is relatively expensive. It prevents proper quality control and customer assurance of additive proportions in the oil. It prevents accurate monitoring of additive proportions in the oil over a period of time and may accordingly allow circumstances to go undetected where no additive at all has been added.
  • the present invention provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump and a distribution line, characterised in that dosing is carried out through the top region of the tank compartments.
  • the present invention also provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump and a distribution line, characterised in that the output from the pump is routed through branch lines taken from the main distribution line, each corresponding to one of the tank compartments and each branch line is provided with an isolating valve.
  • the present invention further provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including two additive tanks, two pumps and two distribution lines, characterised in that the output from the pump is routed through branch lines taken from the main distribution line, each corresponding to one of the tank compartments and an isolating valve and common entry is shared between a pair of branch lines entering a compartment.
  • each branch line is provided with a nonreturn valve to prevent cross flow between the two distribution lines.
  • the present invention further provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including a dosing sub-system comprising an additive tank, two pumps and two distribution lines, characterised in that the distribution lines from each of the two pumps are branched to a different set of compartments, whereby both pumps may be run simultaneously.
  • a dosing sub-system comprising an additive tank, two pumps and two distribution lines, characterised in that the distribution lines from each of the two pumps are branched to a different set of compartments, whereby both pumps may be run simultaneously.
  • the present invention also provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump and a distribution line, characterised in that the apparatus is operated when the truck is in transit,
  • the present invention additionally provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump, a distribution line and a computer, characterised in that the apparatus includes a monitoring element which comprises a flow sensor on the distribution line which detects if flow is occurring in the line.
  • the flow sensor comprises an element which is partially free to move in a substantially vertical section of the distribution line. Flow in the distribution line must pass the element. The position of the element is detected by an electrical sensor which signals the computer. Each flow pulse from the pump lifts the element and operates the electrical sensor. The element subsequently returns to its rest position by the force of gravity.
  • the present invention further provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump, a distribution line and a computer, characterised in that the apparatus includes a monitoring element which comprises a magnetic element on the pump piston and external electrical sensors which can detect the proximity of the magnetic element, located adjacent the fully forward or fully returned positions of the piston where the switches signal the piston position to the computer, whereby a check is made that the injection pump piston achieves its full forward or return stroke
  • the present invention additionally provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump, a distribution line, an isolation valve and a computer, characterised in that the apparatus includes a monitoring means which momentarily attempts to operate the pump before the isolation valve is opened, whereby a cheek is made that the system remains pressure tight or all isolation valves on the distribution line and its branch lines are closed.
  • the present invention also provides an apparatus for dosing fluids on board a truck with tank compartments, the apparatus including an additive tank, a pump, a distribution line and a computer, characterised in that the apparatus includes a computer programme which assists in determining the correct compartment load arrangement and which additionally sets the correct dosing programme for the compartments.
  • the invention also provides a method of dosing fluids with an additive on board a truck having a pluarlity of tank compartments for the fluid, comprising pumping additive from an additive tank along a distribution line to the tank compartments, characterised by dosing the fluid with additive though the upper regions of the tank compartments.
  • the method may include the step of dosing the fluids during transit of the truck.
  • the invention will now be described more particularly with reference to the accompanying drawing which refers to dosing apparatus which is suitable for adding petrol performance additive -to petrol and diesel oil performance additive to diesel oil on tanker trucks carrying these oils.
  • the apparatus comprises two dosing sub-systems with some common parts.
  • Figure 1 shows, in diagrammatic form, a side view of the trailer section of an oil tanker truck with a dosing system for diesel additive and petrol additive with shared isolating valves and entries into each tank compartment.
  • Tank compartment inlet and non-return valve.
  • Each dosing sub-system comprises an additive storage tank 3 and 4, an injection pump and a set of distribution lines 6 and 7 and valves 8 and 9.
  • the two dosing sub-systems have a common control system.
  • Each additive storage tank 3 and 4 is connected to pump 5 and both the additive storage tanks 3 and 4 and the pump 5 are located on the truck below the level of the tank compartments 2.
  • the pump comprises a pneumatic reciprocating injection pump which is operated by air pulses from an electrical solenoid valve using compressed air from the truck system.
  • each pump is routed through a main distribution line 6, 7 which is routed up to and along the top of the tank compartments 2.
  • the output is then routed through a series of branch lines 8, 9 taken from the main distribution line 6, 7, each corresponding to one of the tank compartments 2.
  • Each branch line 8, 9 is fitted with an isolating valve 11.
  • Each branch line 8, 9 enters one of the compartments 2 through its upper surface to permit discharge of additive into the compartment.
  • the branch line 8, 9 terminates in a spring loaded non-return valve 12 positioned just within the compartment.
  • One purpose of the non-return valve is to prevent oil spilling from the compartment 2 in the accidental event of the truck turning over.
  • a second purpose is to retain additive within the line when the system is not in operation.
  • a single isolating valve and non-return valve may be shared between each pair of branch lines entering a compartment. This is achieved by fitting each branch line 8, 9 with an additional non-return valve, to prevent cross flow between the two main distribution lines 6, 7, and then connected the two branch lines destined for each compartment into a single branch line fitted with the isolating valve and the non-return- valve within the compartment. In this arrangement, when the system is operated, the compartments are dosed one at a time
  • Each isolating valve 11 may comprise a conventional air pilot operated valve controlled by a remote electrical solenoid operated valve taking air from the truck system All of the electrical solenoid operated valves may then be mounted in a protective enclosure located in a convenient position on the truck.
  • the control system comprises an electronic control device, such as a computer or microprocessor, henceforth referred to as the computer, which is located within the cab of the truck.
  • the computer is connected to the solenoid valves controlling the injector pump and to the solenoid valves controlling the isolation valves.
  • the computer controls the output from each pump by directly pulsing the relevant pump solenoid valve and controls the compartment to be dosed by operating the relevant isolation solenoid valve.
  • the compartments 2 are dosed one at a time. If the overall dosing time of all of the compartments 2 is found to be too long and if it is not feasible to increase the pumping rate of the injector pump, then the dosing time may be reduced by various methods including the following.
  • the number of injector pumps in one of the dosing sub-systems is increased to two and the distribution lines from each of the two pumps are branched to a different set of compartments. This allows both pumps to be run simultaneously and thereby reduces the dosing time. This is particularly useful where the average quantity of one oil type predominates over the other, the two pumps being used with the dosing sub-system for the predominant oil type.
  • the operation of the dosing apparatus is not directly attended by the driver when dosing takes place when the truck is in transit. It is therefore important that the equipment works reliably and that its operation is checked by an automatic monitoring system. If the monitoring system detects a fault, then dosing is automatically stopped or an acceptable default action is taken.
  • the monitoring system includes several elements.
  • One element of the monitoring system includes a flow switch on each main distribution line 6, 7 which detects if flow is occurring in the line.
  • the flow switch comprises a magnetic weight which is partially free to move in a vertical tube which is arranged to form part of the distribution line. Flow in the distribution line must pass around the magnetic weight. The position of the magnetic weight is detected by an electrical reed switch sensor which signals the computer. Each flow pulse from the injection pump lifts the magnetic weight and switches the reed switch The magnetic weight subsequently returns to its rest position by the force of gravity.
  • a second element of the monitoring system includes a check that the injection pump piston achieves its full forward and return stroke. This is achieved by providing the injection pump with a magnetic piston and external electrical reed switches, located adjacent the fully forward and fully returned positions of the piston, which signal the piston position to the computer.
  • a further element of the monitoring system includes a check that the system remains pressure tight and all isolation valves on the distribution line and its branch lines are closed unless otherwise signalled by the computer. This is achieved by momentarily attempting to operate the pump before the relevant isolation valve is opened. The pump should stall and the flow switch should indicate no flow.
  • the computer can be programmed to assist the driver in determining the correct compartment load arrangement. Where the driver uses the arrangement proposed by the computer, this information can be very conveniently used to additionally set the correct dosing programme for each of the compartments on the computer without further effort by the driver. This also has the advantage that there is less chance of errors being made in setting the dosing programme.
  • the computer has a memory capability which records the time, date and compartment loading details of each delivery
  • the computer also maintains a record of the cumulative usage of each oil type and each additive type This information allows a distributor to audit the usage of additives and to provide an historic record against which any discovered discrepancies can be checked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

Dispositif consistant en un système de dosage servant à ajouter un additif améliorant les performances de l'essence et du diesel dans l'essence et le diesel transportés par des camions-citernes. Ce dispositif comprend un réservoir d'additif (3, 4), une pompe (5) et un conduit de distribution (6, 7). Le dosage est effectué à travers la zone supérieure des compartiments (2) du réservoir. Ce dispositif fonctionne quand le camion est en transit. La sortie de la pompe (5) est acheminée par des conduits de dérivation (8, 9) provenant du conduit de distribution principal (6, 7), correspondant chacun à un des compartiments (2) du réservoir et pourvus chacun d'un clapet d'isolation (11).
PCT/IE1998/000112 1997-12-19 1998-12-21 Procede et dispositif servant a ajouter un additif sur place a un liquide transporte par un camion-citerne WO1999032395A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16809/99A AU1680999A (en) 1997-12-19 1998-12-21 Method and apparatus for on board adding of an additive to fluid carried on a tanker truck

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IES970901 IES970901A2 (en) 1997-12-19 1997-12-19 Method and apparatus for on board adding of an additive to a fluid carried on a tanker truck
IES970901 1997-12-19

Publications (1)

Publication Number Publication Date
WO1999032395A1 true WO1999032395A1 (fr) 1999-07-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IE1998/000112 WO1999032395A1 (fr) 1997-12-19 1998-12-21 Procede et dispositif servant a ajouter un additif sur place a un liquide transporte par un camion-citerne

Country Status (3)

Country Link
AU (1) AU1680999A (fr)
IE (1) IES970901A2 (fr)
WO (1) WO1999032395A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018109422A1 (fr) * 2016-12-16 2018-06-21 X2S Réservoir pour le transport et le stockage de carburant
WO2020264510A1 (fr) * 2019-06-28 2020-12-30 Veeder-Root Company Système de distribution de carburant ayant un ensemble d'injection d'additif
CN113753839A (zh) * 2017-10-09 2021-12-07 纳普科有限责任公司 用于液体产品递送车辆的控制系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990003329A1 (fr) * 1988-09-28 1990-04-05 Gate City Oil Equipment Company Incorporated Systeme de distribution d'additif
US5022428A (en) * 1990-07-03 1991-06-11 Aviation Petroleum Inc. Additive injection system
GB2264693A (en) * 1992-01-17 1993-09-08 Conoco Limited Metering of additives into fuels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990003329A1 (fr) * 1988-09-28 1990-04-05 Gate City Oil Equipment Company Incorporated Systeme de distribution d'additif
US5022428A (en) * 1990-07-03 1991-06-11 Aviation Petroleum Inc. Additive injection system
GB2264693A (en) * 1992-01-17 1993-09-08 Conoco Limited Metering of additives into fuels

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018109422A1 (fr) * 2016-12-16 2018-06-21 X2S Réservoir pour le transport et le stockage de carburant
FR3060543A1 (fr) * 2016-12-16 2018-06-22 X2S Reservoir pour le transport et le stockage de carburant
CN113753839A (zh) * 2017-10-09 2021-12-07 纳普科有限责任公司 用于液体产品递送车辆的控制系统
CN113753839B (zh) * 2017-10-09 2023-12-05 纳普科有限责任公司 用于液体产品递送车辆的控制系统
WO2020264510A1 (fr) * 2019-06-28 2020-12-30 Veeder-Root Company Système de distribution de carburant ayant un ensemble d'injection d'additif
US11242238B2 (en) 2019-06-28 2022-02-08 Veeder-Root Company Fuel delivery system having additive injection assembly

Also Published As

Publication number Publication date
AU1680999A (en) 1999-07-12
IES80948B2 (en) 1999-07-14
IES970901A2 (en) 1999-07-14

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