WO1990015278A1 - Dispositif comportant une soupape - Google Patents

Dispositif comportant une soupape Download PDF

Info

Publication number
WO1990015278A1
WO1990015278A1 PCT/NO1990/000101 NO9000101W WO9015278A1 WO 1990015278 A1 WO1990015278 A1 WO 1990015278A1 NO 9000101 W NO9000101 W NO 9000101W WO 9015278 A1 WO9015278 A1 WO 9015278A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
medium
powered
activation
unit
Prior art date
Application number
PCT/NO1990/000101
Other languages
English (en)
Inventor
Erland Helmer Larsen
Original Assignee
Erland Helmer Larsen
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 Erland Helmer Larsen filed Critical Erland Helmer Larsen
Publication of WO1990015278A1 publication Critical patent/WO1990015278A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic

Definitions

  • This invention relates to a valve, or similar, which uses the energy in the medium it controls to activate the valve, as described in the introductory part of Claim 1.
  • the control of the valve is done by means of digital signals transmitted by cable.
  • the invention can be used in all pipe systems where fluids and gases are to be controlled.
  • valves with a range of different types of control, for example: manual, mechanical, pneumatic, hydraulic, electric or electronic.
  • a common feature of all these different forms of control is that the valves must be supplied with energy from external sources to activate them. This means that the controlling energy must be led from a central position to each valve through pipes or cables. In many cases, this will involve considerable distances, which means the expense of labour and high material costs.
  • status information is required (such as pressure, temperature, flow-rate volume, position) from every valve in the system, additional pipes/cables are necessary. Malfunctions and damage can easily occur in such pipe/cable systems resulting in leakages and fractured cables. Malfunctions are also possible in connecting terminals, switches and such like.
  • the main objective of the invention is to reduce the number of pipe/cable systems required for the control of valves.
  • a second objective is to enable many independent systems to be controlled by a single control unit.
  • a further objective of the invention is to integrate the control of switches and starters for electric motors into a control system for valves.
  • Another objective of the invention is to provide signal transmission which is completely noise resistant.
  • the principle of the invention is a valve with an in-built generator powered by the flow of a medium/pressure of a medium.
  • the valve also comprises a battery, an electromagnet for activation and sensors for pressure, temperature, volume etc. Communication with the control unit and the control of the electromagnet, the charge circuit and sensors, is provided by means of a programmable electronic unit (microprocessor). Where valves are to be controlled by optical fibre, an optical converter is also included.
  • FIG. 1 shows a block diagram of one design in accordance with the present invention
  • Figure 2 shows a block diagram with a number of connected units in a design in accordance with the present invention
  • Figure 1 shows a valve unit, generally indicated by 1.
  • the valve unit 1 comprises an optical converter 3 connected to a optical fibre cable 2.
  • the optical converter 3 is connected to an electronic unit, or microprocessor 4. This is in turn connected to an amplifier 5 for an electromagnet 6.
  • the microprocessor 4 is also connected to a series of sensors 7 through an analog/digital converter 8.
  • the sensors can, for example, be a pressure sensor 7a, a flow sensor 7b, a temperature sensor 7c, and a sensor 7d for various purposes.
  • a generator 9 is mechanically connected to the medium 10 that the valve 11 controls.
  • the generator 9 is powered by a turbine that can be alternatively built as a flow-powered turbine where energy can be extracted from the main flow of the medium when there is a low fall in pressure, or from part of the flow using all the available fall in pressure.
  • a displacement motor could be used as an alternative to the turbine principle.
  • the generator 9 can be built with a rotating and oscillating magnet.
  • the generator 9 provides power to a battery 13 through a charge controller 12.
  • the battery 13 also supplies the microprocessor 4 and the amplifier 5 with power.
  • the valve unit 1 also has a particular address. This is not shown in the figure, but can be implemented with mechanical switches or the like.
  • the valve 11 can be of any type, the figure indicates a valve 11 with an electronic actuator 6, an inflow side 10 and an outflow side 14.
  • a central control unit 15 controls a number of valve units, or the like, la-lf, by means of a optical fibre cable 2 connected in a series circuit. All communication units in the system are preferably able to provide two-way communication.
  • the central unit 15 consists of a microprocessor 16, that has software stored in a memory 17.
  • the microprocessor 16 is connected to an optical fibre converter 18 which again is linked by a transmission cable 2.
  • Each valve unit 1 in the system has its own identity.
  • the optical fibre cable that links the central unit 15 to valve unit la is led by means of a T-junction further to valve unit lb, and then on to valve unit lc etc.
  • connection is routed back to the central unit 15 so that a circuit is formed.
  • a control signal is transmitted in the circuit with the address of the valve unit 1 that is to be operated.
  • Local control units 19 can be connected to circuit 2 where necessary; on board vessels, these could be deck cranes, anchor winches, cargo hatches etc.
  • Valve units la-lf are controlled by messages that contain at least one address and a command.
  • the optical converter 3 on the valve unit 1 picks up the digital signals from circuit 2, converts them and transmits them to the microprocessor 4.
  • the address of the received command is checked here. If the command is not directed to that particular valve unit 1, there will not be any response by the microprocessor 4. If, on other hand, the command is directed to this valve unit 1, the microprocessor 4 will accept the command and execute the order. This could be to give a signal to the amplifier 5, for example.
  • the signal to the switch magnet 6 will then be amplified; then the magnet is activated, and the valve 11 opens or closes, respectively.
  • the microprocessor 4 also receives signals from the various sensors 7a-d via the A/D converter 8.
  • valve units la-f Messages are generated in the central unit 15. If there is manual control this can be done by means of a joystick, wheel, push button, or similar. As this is not part of the invention it is not shown in the figure.
  • Automatic control may take the form of communication between valve units la-f and the central unit ' s 15 microprocessor 16, using the software 17 in microprocessor 16. Messages are transmitted from the central unit 15 to valve units la-f, these contain the following: address, command, report status.
  • the valve unit 1 with the relevant address receives the command, carries out the message, and reports the status back to the central unit 15.
  • This status report can, for instance, contain information on pressure, temperature, volume etc. This information can be used in sequences where one wishes to place conditions on the execution of certain functions, depending on the measured values.
  • the status report can contain an answer to the central unit 15 and provide a basis for corrections in relation to certain previously-determined parameters.
  • a local transmitter unit 19 is connected to an optical fibre cable 2 and located in an appropriate position. This is done so that it cannot influence other valves than the one in the unit it is connected to.
  • the valve unit 1 can be programmed to transmit status messages back to the central unit 15 either continuously or at intervals. This enables the state of the valve to be continuously monitored and/or controlled. The messages can thus be used as answers in a servo system, for pressure control, volume control, temperature control etc.
  • the invention means that it is unnecessary to supply external energy to control the valve. This avoids a lot of the work and material costs connected with the laying of cables or pipes. It is only necessary to lay a single core optical fibre cable from the control position to the first valve, then from the first to the second etc. A single core optical fibre cable can at the same time transmit signals in the order of a thousand to valve unit 1. When the last valve is reached, the cable is routed back to the central unit 15 so that a circuit is formed. This ensures that all valves receive their signals, even if there is a fracture in the cable 2.
  • the invention means that it is only necessary to connect this new valve/these new valves to the system between two existing valves, and then configure the software to the identification and mode of operation of the valve(s).
  • the system also enables switches and starters for electric motors to be controlled in the same way as valves, and by means of the same control medium (optical fibre cable, for example). This simplifies the control of automatic processes, and further reduces the material and installation costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Une soupape (11) pour la commande d'un milieu fluide (10) est reliée à un système de commande externe par un câble électrique ou en fibres optiques (2) et est pourvue de moyens d'activation (4, 5, 6). Ces derniers comportent une unité de commande électronique (4), de préférence un microprocesseur (4), un amplificateur (5), et un actuateur électromécanique de soupape (6). Un convertisseur d'énergie (9) est mis en contact avec le milieu (10) de manière à pouvoir produire de l'énergie à partir de ce dernier. Le convertisseur d'énergie (9) fournit de l'énergie aux moyens d'activation (4, 5, 6). Le microprocesseur (4) est également relié à plusieurs détecteurs (7a-d) qui sont situés de manière à acquérir des données ambiantes pertinentes. Le convertisseur d'énergie se présente de préférence sous la forme d'un générateur électrique (9), comprenant une turbine mue par le flux principal et/ou une turbine mue par un flux partiel, ou encore un moteur mû par le principe volumétrique à l'aide d'un électroaimant rotatif et/ou oscillant.
PCT/NO1990/000101 1989-06-08 1990-06-06 Dispositif comportant une soupape WO1990015278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO892348 1989-06-08
NO89892348A NO892348L (no) 1989-06-08 1989-06-08 Anordning ved ventil.

Publications (1)

Publication Number Publication Date
WO1990015278A1 true WO1990015278A1 (fr) 1990-12-13

Family

ID=19892121

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1990/000101 WO1990015278A1 (fr) 1989-06-08 1990-06-06 Dispositif comportant une soupape

Country Status (3)

Country Link
AU (1) AU5746790A (fr)
NO (1) NO892348L (fr)
WO (1) WO1990015278A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011482A1 (fr) * 1990-12-21 1992-07-09 Allied-Signal Inc. Transducteur a commande optique
WO2005116498A1 (fr) * 2004-05-27 2005-12-08 Norgren Limited Dispositif de controle de debit fluidique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001337A1 (fr) * 1983-09-23 1985-03-28 Parsons Natan E Systeme a ultrasons de commande d'un ecoulement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001337A1 (fr) * 1983-09-23 1985-03-28 Parsons Natan E Systeme a ultrasons de commande d'un ecoulement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011482A1 (fr) * 1990-12-21 1992-07-09 Allied-Signal Inc. Transducteur a commande optique
WO2005116498A1 (fr) * 2004-05-27 2005-12-08 Norgren Limited Dispositif de controle de debit fluidique
JP2008501300A (ja) * 2004-05-27 2008-01-17 ノルグレン・リミテッド 流体流動制御装置
US7775504B2 (en) 2004-05-27 2010-08-17 Norgren Limited Fluid flow control device

Also Published As

Publication number Publication date
NO892348L (no) 1990-12-10
AU5746790A (en) 1991-01-07
NO892348D0 (no) 1989-06-08

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