EP1956246A2 - Perfektionierung der beweglichen Vorrichtungen zur Brandbekämpfung, die mit manuellen und automatischen Kontrollmitteln ausgestattet sind - Google Patents

Perfektionierung der beweglichen Vorrichtungen zur Brandbekämpfung, die mit manuellen und automatischen Kontrollmitteln ausgestattet sind Download PDF

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Publication number
EP1956246A2
EP1956246A2 EP20080300077 EP08300077A EP1956246A2 EP 1956246 A2 EP1956246 A2 EP 1956246A2 EP 20080300077 EP20080300077 EP 20080300077 EP 08300077 A EP08300077 A EP 08300077A EP 1956246 A2 EP1956246 A2 EP 1956246A2
Authority
EP
European Patent Office
Prior art keywords
manual control
pump
control means
automatic
discharge pressure
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.)
Withdrawn
Application number
EP20080300077
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English (en)
French (fr)
Inventor
Jean-Marie Freche
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.)
Societe Industrielle pour le Developpement de la Securite SAS SIDES
Original Assignee
Societe Industrielle pour le Developpement de la Securite SAS SIDES
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 Societe Industrielle pour le Developpement de la Securite SAS SIDES filed Critical Societe Industrielle pour le Developpement de la Securite SAS SIDES
Publication of EP1956246A2 publication Critical patent/EP1956246A2/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C25/00—Portable extinguishers with power-driven pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine

Definitions

  • the present invention relates to the field of mobile devices for the fight against fire, such as fire vehicles or fire pumps.
  • the invention relates more particularly to an improvement to mobile devices equipped with a pump for the discharge of a fire-extinguishing liquid, associated with a drive motor which can be controlled alternately by manual control means (manual control). and automatic (automatic regulation).
  • This kind of mobile device conventionally comprises a pump for the delivery of a fire extinguishing liquid, coupled to a drive motor.
  • a pump driver is responsible for controlling the discharge pressure at the pump outlet (also called “pressure head”), adapted to the conditions of the intervention. For this, it acts mainly on the speed of this assembly pump discharge / drive motor.
  • the pump conductor adjusts the speed of the discharge pump in a particular way, in particular so as to obtain a delivery pressure adapted to the conditions of the pump. intervention: it increases the speed of the pump to obtain an increase in the discharge pressure, and conversely, it reduces its speed to reduce this discharge pressure.
  • the pump driver can decide to switch to automatic pressure regulation. This is particularly the case when it temporarily suspends its primary mission, to devote itself to another task.
  • the discharge pressure is likely to undergo a sudden change (in the direction of an increase or decrease) during this switchover, in particular if the discharge pressure setpoint is significantly different. relative to the actual value of the discharge pressure.
  • this pressure variation is likely to be really detrimental to the operator handling the fire hose (commonly known as "lance holder"), particularly if he had managed to obtain optimal conditions of discharge pressure.
  • a sudden decrease in pressure can no longer effectively fight the fire, and a sudden increase in pressure is likely to cause a phenomenon of recoil of the lance, causing a modification of the support of the lance holder with risks of loss of balance or even fall when the latter works at height (on a particular scale).
  • the manual control means are connected directly to the driving motor of the discharge pump; they are thus independent of the automatic control means.
  • the manual control means control the speed of the discharge pump through the automatic control means, the latter then functioning as simple repeaters when the management of the discharge pressure is in active mode of manual control.
  • the automatic regulation means comprise a man-machine interface of the motorized potentiometer type provided with visual position indicators, so that, in the active manual control mode, said automatic regulation means ensure a maneuver of said potentiometer. in a position corresponding to the actual value of the discharge pressure P.
  • the automatic control means comprise at least one human-machine interface of the two-button type and the mobile device further comprises a screen for displaying the pressure setpoint C input by the pump driver.
  • the manual control means and the automatic control means each advantageously comprise a man-machine interface of the two-button type of their own, independent of one another.
  • the human-machine interface of the two-button type is common to the automatic control means and the manual control means, the selection means for switching between the "manual control" and "automatic control” modes.
  • the device comprises a pressure sensor connected to the automatic control means and arranged at the output of the discharge pump, this is to measure the actual value of the discharge pressure P at the pump outlet.
  • the present invention also relates to the method of operation of the automatic control means of the mobile device defined above, which method consists, in active manual control mode, to match the pressure setpoint C with the actual value of the discharge pressure P .
  • the mobile device 1 of the fire vehicle or fire pump type, is equipped with a pump 2 for the delivery of a fire-extinguishing liquid, for example of the centrifugal pump type, coupled to a drive motor 3.
  • a pump 2 for the delivery of a fire-extinguishing liquid, for example of the centrifugal pump type, coupled to a drive motor 3.
  • Selection means 6 are further provided to allow switching between the two aforementioned modes of management of the discharge pressure P, manual and automatic.
  • the pump driver intervenes on the manual control means 4 to directly control the speed of the associated drive motor 3.
  • This direct management of the speed of the drive motor 3 makes it possible to regulate the operation of the centrifugal pump 2, and thus to adjust the discharge pressure P, at the pump outlet (that is to say at the level of the volute pump or its discharge port).
  • This discharge pressure is adjusted in particular according to the conditions of intervention on the fire.
  • the automatic control means 5 activated ensure the achievement and maintenance of the discharge pressure P, according to a value corresponding to the pressure setpoint C entered by the pump driver.
  • the automatic regulation means 5 also act on the speed of the drive motor 3, this here automatically.
  • the automatic regulation means 5 are furthermore configured so that, in the active manual control mode, the actual value of the discharge pressure P is assigned to the pressure setpoint C. In this way, if the pump operator tilts the device in automatic regulation mode, the pressure setpoint C automatically corresponds to the actual pressure P.
  • this mobile device 1 The general structure of this mobile device 1 is described in more detail below, always in connection with the figure 1 .
  • the manual control means 4 conventional in themselves, comprise a panel or a control interface 10, the type with two keys: one “faster” 10 'and the other “less quickly” 10 ".
  • This interface 10 is connected to the discharge pump 3 by an electric circuit 11 (shown very schematically on the figure 1 ), which is structured to cause an acceleration or a reduction of the engine speed according to the action of the operator, respectively on the keys "faster” 10 'and “slower” 10 ".
  • the automatic regulation means 5 mainly comprise a programmable controller 12, for example of the regulator type "Proportional Integral Derivative” (commonly called "PID").
  • PID Proportional Integral Derivative
  • the selection means 6 comprise a selection interface 7, of the two-button type: one 7 'corresponding to the activation of the manual control and the other 7 "corresponding to the activation of the automatic regulation, to enable the pump driver to switch from one of the management modes to another.
  • the programmable controller 12 is configured so that, in manual control activated mode (the PLC being inactive towards the engine speed), its setpoint C is modified to correspond to the value of the discharge pressure P measured by the pressure sensor 14 (called the "real value" of pressure). Still in manual control mode, the programmable controller 12 controls the associated potentiometer 13, in a position corresponding to the value of the discharge pressure P (thus also corresponding to the set point C ).
  • the operator can progressively change the discharge pressure P by acting on the setpoint input interface C, this in particular as a function of the operating conditions (length establishment, fires in floor, etc.); this set point C is thus no longer subject to or controlled by the discharge pressure P.
  • the pump driver may decide to return to manual control mode, and vice versa. It suffices for it to act properly on the selection interface 7.
  • the switching between the manual control and automatic regulation modes can be obtained directly by a simple action of the operator on the interface 10 or 13 corresponding (this possibility of operation is also possible for the forms described below in relation to the figures 2 and 3 , where there is a human-machine interface specific to the manual control means and the automatic regulation means).
  • the selection interface 7 may possibly be deleted; a device of the display type is then provided, allowing the pump operator to visualize the active, manual or automatic management mode.
  • FIGS. 2 to 4 show three different embodiments of a mobile device, which are different from that described above in relation to the figure 1 in that the manual control means are connected to the drive motor via the automatic control means. Moreover, these different embodiments are distinguished from each other by the type of human-machine interface present.
  • a mobile device 1 of the fire vehicle or pump motor type that is to say a pump 2 coupled to a drive motor 3 whose speed is controlled by the manual control means 4 and the automatic regulation means 5.
  • the switching from one management mode to another is enabled by the associated selection means 6.
  • the manual control means 4 are here connected to the automatic regulation means 5, and more precisely to the programmable controller 12; the automatic control means 5 in question thus function as a repeater for the manual control means 4, when the latter are selected and activated.
  • the selection means 6 form an integral part of the programmable logic controller 12.
  • the manual control interface 10 is always of the two-key type 10 'and 10 ", this interface 10 is here connected to the programmable controller 12.
  • the setpoint input interface 13 C is again presented here in the form of a motorized potentiometer, with visual reference marks.
  • the setpoint value C at the level of the controller 12 corresponds to the value measured by the pressure sensor 14 associate.
  • the potentiometer 13 is operated by the programmable controller 12, so that its position corresponds to this set point C (or the measured value of discharge pressure P).
  • the setpoint input interface C is here of the two-key type, one "increment” 15 'and the other “decrement” 15 “of the pressure setpoint C , the manual control interface 10 remains two buttons 10 'and 10 ", connected to the PLC 12.
  • This device 1 advantageously further comprises a screen 16 on which is displayed the pressure setpoint C, input by the pump driver.
  • the actual value of the discharge pressure can be indicated to the pump driver also by a display or screen (not shown) connected to the pressure sensor 14 directly or via the programmable controller 12.
  • the pressure setpoint C is further modified so as to correspond to the actual value of the discharge pressure P (measured by the pressure sensor 14).
  • FIG. 4 Yet another possible embodiment of the invention is represented by the figure 4 .
  • This embodiment is characterized by the fact that the programmable controller 12 is associated with a man-machine interface 17, of the two-button type 17 '' + '' and 17 '''', common to the manual control means and the automatic control means, and - the selection interface 7, also of the two-button type 7 'and 7 ".
  • the pressure set point C is modulated in a manner identical to that described above in relation to the figure 3 , i.e., depending on the discharge pressure P when the manual control mode is activated.
  • the mobile device of the figure 1 may also comprise a programmable controller 12 associated with a set of two-button interface 15 or 17 and display 16, identical or similar to that described above in connection with the Figures 3 or 4 , this in replacement of the potentiometer 13.
  • the subjection or the servocontrol of the setpoint C, as a function of the discharge pressure P can advantageously be implemented in two different ways: either continuously or almost continuously - either when switching to automatic control mode.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP20080300077 2007-02-09 2008-02-08 Perfektionierung der beweglichen Vorrichtungen zur Brandbekämpfung, die mit manuellen und automatischen Kontrollmitteln ausgestattet sind Withdrawn EP1956246A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0700956A FR2912316B1 (fr) 2007-02-09 2007-02-09 Perfectionnement aux dispositifs mobiles pour la lutte contre l'incendie, du type vehicule incendie ou motopompe incendie, equipe de moyens de regulation manuelle et automatique

Publications (1)

Publication Number Publication Date
EP1956246A2 true EP1956246A2 (de) 2008-08-13

Family

ID=38445645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080300077 Withdrawn EP1956246A2 (de) 2007-02-09 2008-02-08 Perfektionierung der beweglichen Vorrichtungen zur Brandbekämpfung, die mit manuellen und automatischen Kontrollmitteln ausgestattet sind

Country Status (2)

Country Link
EP (1) EP1956246A2 (de)
FR (1) FR2912316B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113457050A (zh) * 2021-05-27 2021-10-01 长沙中联消防机械有限公司 臂架水炮变姿态恒压控制方法、装置、系统和消防车

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786869A (en) * 1972-04-27 1974-01-22 Loughlin J Mc Nozzle pressure control system
JP2008505701A (ja) * 2004-07-07 2008-02-28 キッデ・ファイアー・ファイティング・インコーポレーテッド ホストポンプとサテライトポンプとを備えてなるポンプシステム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113457050A (zh) * 2021-05-27 2021-10-01 长沙中联消防机械有限公司 臂架水炮变姿态恒压控制方法、装置、系统和消防车

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Publication number Publication date
FR2912316B1 (fr) 2009-05-01
FR2912316A1 (fr) 2008-08-15

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