WO2006043799A1 - Distributeur de gaz liquefie de petrole ameliore comprenant un mesureur de flux de masse par effet de coriolis - Google Patents

Distributeur de gaz liquefie de petrole ameliore comprenant un mesureur de flux de masse par effet de coriolis Download PDF

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Publication number
WO2006043799A1
WO2006043799A1 PCT/MX2004/000077 MX2004000077W WO2006043799A1 WO 2006043799 A1 WO2006043799 A1 WO 2006043799A1 MX 2004000077 W MX2004000077 W MX 2004000077W WO 2006043799 A1 WO2006043799 A1 WO 2006043799A1
Authority
WO
WIPO (PCT)
Prior art keywords
lpg
mass flow
dispensary
flow meter
petroleum gas
Prior art date
Application number
PCT/MX2004/000077
Other languages
English (en)
Spanish (es)
Inventor
Jorge Cortes Garcia
Juan Bosco Amaya Torres
Original Assignee
Jorge Cortes Garcia
Juan Bosco Amaya Torres
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 Jorge Cortes Garcia, Juan Bosco Amaya Torres filed Critical Jorge Cortes Garcia
Priority to PCT/MX2004/000077 priority Critical patent/WO2006043799A1/fr
Publication of WO2006043799A1 publication Critical patent/WO2006043799A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/028—Special adaptations of indicating, measuring, or monitoring equipment having the volume as the parameter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means

Definitions

  • the invention participates both in the field of apparatus used for the controlled and measured supply of Liquefied Petroleum Gas (LPG), in fixed stations or supply centers, as well as in the field of methods for supplying LPG.
  • LPG Liquefied Petroleum Gas
  • LPG Liquefied Petroleum Gas
  • LPG meters which work under the principles of positive displacement, oscillating piston and others, which measure with an acceptable degree of precision, the volumes of LPG that are supplied in the different supply centers.
  • One way to measure the volumes of pressurized liquid fuel flows, such as LPG is the coriolis mass flow meter, the same meter referred to in the patents indicated below: US4,491,025; WO03 / 056282 A1; EP1459O39; US6J82J64 B2; US6J82J62 B2; US4,109,524
  • This type of flow meter with a coriolis effect has several advantages over the rest of the existing meters, since while the mass flow meter gives a reading from the density and mass of the liquids that are passed by the meter, with which a very precise volume measurement is obtained, the rest of the meters show variations in the measurement due to changes in temperature and pressure so that in many cases it is required to make a volume compensation according to the Temperature of the liquid, without achieving a completely correct and accurate measurement, in addition to the fact that according to this type of meters they suffer wear, they need to be adjusted periodically to compensate for changes in volume inside them.
  • the invention consists of a dispensary to supply liquefied petroleum gas (LPG), whose novel feature is the incorporation of a mass flow meter by coriolis effect, as a device in charge of carrying out the measurement and allowing the control of the flows or volumes of LPG by the dispensary.
  • LPG liquefied petroleum gas
  • Figure 1 Shows a dispenser (5) of Liquefied Petroleum Gas for fixed stations or supply centers, where a coriolis effect mass flow meter (7) is used as the controlling element and LPG volume meter delivered to a served tank (10), from a primary tank (1), and which is also equipped with the rest of the components necessary to perform the dispensary functions.
  • the pointer (1) shows the primary LPG storage tank.
  • the pointer (2) shows the pump that generates the pressure necessary for dispatch, measurement and stabilization of LPG.
  • the pointer (3) shows the valve that opens the return line of the dispensary, where the air, vapors and residues of the LPG are circulated, which for any reason are not delivered by the dispensary to the tank served.
  • the pointer (4) shows a pressure sensor used to monitor that the LPG entering the meter has the desired pressure precisely for its conduction and measurement.
  • the pointer (5) shows the dispensary cabinet.
  • the pointer (6) shows the screens incorporated into the dispensary cabinet, where it can show information to its users.
  • the pointer (7) shows the mass flow meter by coriolis effect. -TO-
  • the pointer (8) shows the flow control valve, which is generally placed at the outlet of the mass flow meter by coriolis effect.
  • the pointer (9) shows the coupling system between the dispensary and the tank served, and for illustrative purposes a "gun" type dispensing valve was incorporated.
  • the pointer (10) shows the mobile tank served by the dispensary, and for illustrative purposes, any vehicle with LPG storage tank was incorporated.
  • This invention consists of a dispensary for the supply of Liquefied Petroleum Gas (LPG) in fixed stations or supply centers, whose main characteristic is that in order to achieve a precise and reliable control and measurement of the delivered flows, it incorporates a mass flow by coriolis effect, this being a totally new application of mass flow meters by coriolis effect ..
  • LPG Liquefied Petroleum Gas
  • this dispensary is equipped with the rest of the peripheral components that any other LPG dispensary has that are used in stations or fixed supply centers, such as its cabinet, pipe, control valves (binary, dual flow or variable flow), safety valves, vapor elimination system, fuel pumps, electronic controller, display, etc.
  • stations or fixed supply centers such as its cabinet, pipe, control valves (binary, dual flow or variable flow), safety valves, vapor elimination system, fuel pumps, electronic controller, display, etc.
  • the dispensary be configured in the manner indicated below:
  • the dispensary must have a pressure pump (2), which feeds on LPG from a primary storage tank (1), and delivers the LPG with the pressure necessary to achieve its conduction, measurement and stabilization in an exclusively liquid state .
  • This pressure pump (2) will lead the LPG directly to a vapor separator system from where a return line (3) leaves, where they are circulated back to the Primary storage tank (1), air, LPG vapors, and LPG waste that will not be passed through the meter.
  • the chamber where the return line comes from which is also where the mass flow meter is fed by the coriolis effect (7), called as the intake chamber, where a pressure sensor is placed to verify that the LPG pressure existing in said chamber is adequate for the measurement of LPG.
  • the same pressure produced by the pump (2) passes the LPG through a mass flow meter by effect coriolis (7), which is responsible for measuring the LPG volumes that are circulated through such a measuring device.
  • a flow control valve (8) is placed, which controls the volume that is passed through the meter, since it closes and opens the LPG flow circulating through the meter (7).
  • Both the return valve (3), as the meter (7), the pressure sensor (4) and the flow valve (8), are connected by electronic means to a generally electronic control system, which interprets the signals given by the pressure sensor (4) and the meter (7), as well as the signals or instructions captured by the dispensary user, to perform in an automated way, functions such as opening and closing the return valve (3), opening and close the flow valve (8), send audible or visual signals to the screen (6) of the dispensary, or turn on and off the pressure pump (2).
  • the LPG After passing through the flow control valve (8), the LPG is circulated through a system of pipes, generally flexible, culminating in a hermetic coupling system (9) that allows delivery of the pressurized LPG to the tank served ( 10).
  • the dispensary of course has a generally metallic cabinet (5), to which the elements that are part of the dispensary are incorporated, with the exception of the primary storage tank (1).
  • the pressure pump (2) also appears outside the cabinet (5) of the dispensary, since it is not necessary to be inside it, which can help reduce the physical space occupied by the dispensary itself.
  • the coriolis mass flow meter (7) must be installed just after the vapor separation system, and just before the flow control valve (8), and these three elements in turn, must be physically placed As close as possible to the hermetic coupling device (9) through which the physical delivery of the LPG volumes supplied to the served tank (10) is carried out.
  • the tubes and hoses used to drive the flow of LPG from one element to another, of which they are part of the dispensary, may be rigid, but will generally be flexible, and in any case they must be able to resist the LPG conduction with a pressure of at least 220 pounds per inch.
  • This invention also consists of the LPG clearance method in which the novel dispensary referred to in this patent document is used.
  • the LPG dispensary for fixed stations or supply centers covered by this patent document has the peculiar and novel feature of incorporating a coriolis mass flow meter, as the device responsible for measuring and controlling LPG flows. delivered to the mobile tank served.
  • This type of LPG dispensary is mainly used in supply centers or service stations, both public and private, where LPG is served or supplied from a primary tank, to one or several mobile or automobile tanks, also called tanks served.
  • the dispensary is a device whose main function is to serve LPG from a primary storage tank, to a mobile tank served, measuring and controlling the flows or volumes of LPG served.
  • the way of controlling and measuring the flows or volumes of LPG served is similar to the way in which all LPG dispensaries currently in operation operate, with the difference that this meter uses a mass flow meter by coriolis effect, instead of using meters of any other type, being that the meter used by the dispensary in question of this invention, allows to identify the density, temperature and mass of the LPG flows that are circulated through said measuring instrument.
  • the measuring instrument sends its readings to an electronic control system, which interprets the information delivered by the meter, showing it in some simple way to the operator, either through a digital display, through a print, by sound signals or by counters mechanics
  • an electronic control system which interprets the information delivered by the meter, showing it in some simple way to the operator, either through a digital display, through a print, by sound signals or by counters mechanics
  • any type of peripheral accessories existing in the current state of the art can be incorporated, and which are also necessary for the dispensary to fulfill its function, such as filters, systems for separating and eliminating vapors, control valves of flows, electronic systems to interpret and manipulate the information provided by the meter, pressure sensors, pressure pumps, coupling systems with the mobile tanks served, rigid and flexible pipe, etc.
  • An alternative to the configuration of the dispensaries covered by this invention is to install two or more mass flow meters by coriolis effect to the same dispensary, so that LPG could be simultaneously supplied to more than one mobile or automobile served tank .
  • LPG Liquefied Petroleum Gas

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Distributeur de gaz liquéfié de pétrole (GLP) caractérisé en ce qu'il utilise un mesureur de flux de masse par effet de Coriolis, lequel assure une mesure plus précise et fiable des volumes de GLP distribués par rapport aux mesureurs utilisés par les distributeurs connus à ce jour dans les stations ou les centres d'approvisionnement de GLP, étant donné que ce type de mesureur de flux de masse par effet de Coriolis évite le besoin de corriger le volume par la température, ce qui a pour effet d'éviter les réglages de mesure par variations du volume des mesureurs, d'où la suppression du besoin de remplacer des pièces mobiles des mesureurs, ce qui garantit une fiabilité accrue de la mesure des volumes réellement servis. Procédé d'approvisionnement de GLP utilisant le distributeur de cette invention.
PCT/MX2004/000077 2004-10-18 2004-10-18 Distributeur de gaz liquefie de petrole ameliore comprenant un mesureur de flux de masse par effet de coriolis WO2006043799A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/MX2004/000077 WO2006043799A1 (fr) 2004-10-18 2004-10-18 Distributeur de gaz liquefie de petrole ameliore comprenant un mesureur de flux de masse par effet de coriolis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2004/000077 WO2006043799A1 (fr) 2004-10-18 2004-10-18 Distributeur de gaz liquefie de petrole ameliore comprenant un mesureur de flux de masse par effet de coriolis

Publications (1)

Publication Number Publication Date
WO2006043799A1 true WO2006043799A1 (fr) 2006-04-27

Family

ID=36203198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2004/000077 WO2006043799A1 (fr) 2004-10-18 2004-10-18 Distributeur de gaz liquefie de petrole ameliore comprenant un mesureur de flux de masse par effet de coriolis

Country Status (1)

Country Link
WO (1) WO2006043799A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067052A1 (fr) * 2000-03-07 2001-09-13 Micro Motion, Inc. Compensation de la densite pour un volume d'ecoulement mesure au moyen d'un debitmetre massique a effet de coriolis
US20020100505A1 (en) * 2001-01-31 2002-08-01 Keilty Michael J. Fluid delivery system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067052A1 (fr) * 2000-03-07 2001-09-13 Micro Motion, Inc. Compensation de la densite pour un volume d'ecoulement mesure au moyen d'un debitmetre massique a effet de coriolis
US20020100505A1 (en) * 2001-01-31 2002-08-01 Keilty Michael J. Fluid delivery system

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