EP2249092A1 - Sicherungseinheit zum gesteuerten Verschliessen von Belüftungskanälen - Google Patents

Sicherungseinheit zum gesteuerten Verschliessen von Belüftungskanälen Download PDF

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Publication number
EP2249092A1
EP2249092A1 EP10159353A EP10159353A EP2249092A1 EP 2249092 A1 EP2249092 A1 EP 2249092A1 EP 10159353 A EP10159353 A EP 10159353A EP 10159353 A EP10159353 A EP 10159353A EP 2249092 A1 EP2249092 A1 EP 2249092A1
Authority
EP
European Patent Office
Prior art keywords
cock
duct
configuration
wall
unit according
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Withdrawn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
EP10159353A
Other languages
English (en)
French (fr)
Inventor
Giuseppe Favier Mannina
Giuliano Rivani
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.)
Maribro' SNC Di Mannina Giuseppe Favier E Rivani Giuliano
Original Assignee
Maribro' SNC Di Mannina Giuseppe Favier E Rivani Giuliano
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 Maribro' SNC Di Mannina Giuseppe Favier E Rivani Giuliano filed Critical Maribro' SNC Di Mannina Giuseppe Favier E Rivani Giuliano
Publication of EP2249092A1 publication Critical patent/EP2249092A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/0025—Ventilation using vent ports in a wall

Definitions

  • the present invention relates to a safety unit for the controlled closure of ventilation ducts, suitable in particular for installation in the ventilation ducts that are necessary in the presence of open flames inside enclosed spaces.
  • the heating system (the combustion boiler or even a simple combustion water heater, if they are not of the "sealed" type) and the kitchen (cookers obviously have a certain number of open flames) require correct air exchange, which is regulated in Italy by the Uni Cig-7129 standard and by the aforementioned Law 46-1990: according to these provisions, each system for air exchange, especially in enclosed spaces like the kitchen, must be done according to best practice.
  • the regulations provide for the presence of a ventilation opening: as is known, every flame is fed by oxygen, and therefore if there is no adequate air reentry duct a depletion of oxygen and an increase in burnt gases (for example carbon monoxide) occur.
  • the ventilation opening must be larger if the cooking top does not have the flame safety device that blocks gas emission when the flame is extinguished by accident.
  • the aim of the present invention is to obviate the above drawbacks and meet the mentioned requirements, by providing a safety unit for the controlled closure of ventilation ducts that minimizes the loss of heat while maintaining the ventilation prescribed by the law in the presence of open flames.
  • an object of the present invention is to teach the user to close the cock that receives the gas when the corresponding user devices are not in use and thus increase the safety of the management of the user devices.
  • Another object of the present invention is to prevent the user from being able to block the ventilation duct in order to reduce the loss of heat.
  • Another object of the present invention is to provide a device which is simple, relatively easy to provide in practice, safe to use, effective in operation and of relatively low cost.
  • the present safety unit for the controlled closure of ventilation ducts of the type that passes from the inside of an enclosed space to the outside and comprises appropriate protective grilles on its openings, the internal space in turn comprising a flow control cock on the fuel supply pipe, characterized in that it comprises a kit for flow control and closure of said duct controlled by said cock, said kit being in the configuration for closing the duct when the cock is in the condition for closing the pipe and therefore the flow of fuel is blocked, and in the configuration for opening the duct when the cock is in the condition for opening the pipe and the flow of fuel is allowed.
  • a safety unit for the controlled closure of ventilation ducts is generally designated by the reference numeral 1.
  • the safety unit 1 is adapted to be installed in all ventilation ducts 2 that pass from the inside of an enclosed space 3 to the outside, the ducts 2 being provided with adapted protective grilles 4 and 5 on their openings; the grilles 4 and 5 prevent a user from inserting a hand in the duct 2 and remaining stuck in it. Obviously, the grilles 4 and 5 also prevent the entry of foreign objects and animals.
  • the unit 1 also provides for the presence of a gas-using device in which there is an open flame in the enclosed space 3 (combustion boilers of the sealed type are therefore excluded): the figure shows the case of a cooking range 6.
  • a gas-using device in which there is an open flame in the enclosed space 3 (combustion boilers of the sealed type are therefore excluded): the figure shows the case of a cooking range 6.
  • Any other type of user device is in any case to be considered suitable for association with the unit 1 according to the invention: for example, the association is envisaged for boilers (not of the sealed type), water heaters, gas-fired ovens, open flame nozzles (of the Bunsen burner type) and other similar applications.
  • the supply of the gas to the cooking range 6 is provided through a supply pipe 7a controlled by a cock 7.
  • the safety unit 1 comprises a kit for flow control and closure 8 of the duct 2 controlled by the cock 7.
  • the unit 1 is in the configuration for closing the duct 2 when the cock 7 is in the condition for closing the pipe 7a and therefore the flow of fuel is blocked; it is, on the other hand, in the configuration for opening the duct 2 when the cock 7 is in the condition for opening the pipe 7a and the flow of fuel is allowed.
  • the kit 8 for flow control and closure of the duct 2 comprises a movable wall 9, a movement element (10 in the mechanical version and 11 in the electrical version) associated with the wall 9 and adapted elastic means 12.
  • the wall 9 can be oriented, by the action of the element (10 or 11, depending on the version), from a first inactive configuration, in which the duct 2 is open, to a second configuration for obstructing the duct 2 by forcing the elastic means 12.
  • the movement element 10 (with reference to the mechanical version shown in Figure 4 ) comprises a translating member 13, a first end of which is associated with the wall 9 and the second opposite end of which is associated with the cock 7.
  • a rotation of the cock 7 produces a translational motion of the second end associated therewith and a consequent translational motion of the first end associated with the wall 9, which also is subjected to movement and in particular to the rotation from the configuration for closing the duct 2 (imposed by the elastic action of the elastic means 12) to the open configuration, therefore also due to the movement of the cock 7.
  • the translating member 13 is of the type of a wire, which can preferably slide within a respective sheath.
  • a rotation of the cock 7, from the configuration for closing the fuel pipe 7a to the open configuration, causes a translational motion of the wire, by way of traction applied to its second end associated with the cock 7, with a consequent movement of the wall 9 in the configuration for opening the duct 2: in practice, the wire, as a consequence of this rotation, is slack and the elastic means 12 apply their traction to the wall 9, keeping it in the configuration for opening the duct 2.
  • the elastic means 12 maintain the wall 9 in conditions for "normal opening of the duct": a failure, such as a breaking of the wire, ensures in any case the safety of the home because the duct 2 is open for any position of the cock 7 (which at this point, because of the failure, is disconnected from the wall 9, which is kept in position only by the action of the elastic means 12).
  • the wire can be constituted by a stem with a single beginning, which is substantially rigid and provided with adapted joints for connection between the segments that constitute it: with each change of direction there is a joint that allows mutual articulation between the two adjacent segments associated with such joint.
  • the wire can be constituted by a plurality of mutually braided starts: in this case the wire is flexible and particularly resistant to tensile stresses and has a behavior similar to that of braided metal wires used normally in the mechanical sector (consider the brake cables of cycles or motorcycles).
  • the unit 1 With reference to an electric version of the unit 1 according to the invention, it comprises a circuit 14 provided with a switching element 15 that is connected thereto and is designed to supply power to the flow control and closure kit 8.
  • the circuit 14 is open when the cock 7 is open and is closed when the cock 7 is closed; the movement element 11 is constituted by a motor that is powered through the electric circuit 14 that leads to the cock 7.
  • the wall 9, is a plate that is pivoted to the internal surfaces of the duct along an axis that is substantially parallel to such surfaces.
  • the wall 9 as a set of laminae that can rotate with respect to mutually parallel axes and are partially superimposed when they all lie on a same plane to close the duct 2.
  • a sensor 16 for detecting the configuration of the wall 9 when the wall 9 is in the configuration for opening the duct 2, the sensor can enable the supply of electric power to adapted forced aspiration devices: in this manner the exchange of air between the inside and the outside is facilitated, preventing the buildup of combusted gases.
  • the electric circuit 14 can comprise a voltage transformer 17 so as to keep the voltage of the unit 1 at low values (in the field termed "very low voltage") in order to reduce the risk of injury; downstream of the transformer 17, in a preferred solution a battery is installed. From a constructive point of view, such battery is inserted in an uninterrupted power supply 18 that comprises a rectifier (a device that converts alternating current to direct current), the actual battery and an inverter (a device that converts direct current into alternating current). If the motor 11 is supplied by direct current, the inverter is not present in the uninterrupted power supply 18.
  • a rectifier a device that converts alternating current to direct current
  • inverter a device that converts direct current into alternating current
  • the box-like body 19 by means of which it is possible to install the kit 8 comprises a compartment (not illustrated in the figure) for containing the motor 11 and an indicator light 20 that is visible from the outside in order to indicate the correct supply of electric power: actually, the indicator light 20 is on whenever the electric circuit 14 is closed and thus the cock 7 is in the closed position and no gas is supplied to the user devices. If the uninterrupted power supply 18 is not present and without an electric supply from the mains 21, the unit 1 is inoperative, the duct 2 remains open with any configuration of the cock 7 and therefore the indicator light 20 is always off.
  • the unit 1 according to the invention is intended to get the user accustomed to closing the cock 7 whenever he/she is not using devices supplied by gas, contributing to the increase in safety of his/her own home.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)
  • Flow Control (AREA)
  • Feeding And Controlling Fuel (AREA)
EP10159353A 2009-04-27 2010-04-08 Sicherungseinheit zum gesteuerten Verschliessen von Belüftungskanälen Withdrawn EP2249092A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO2009A000259A IT1393894B1 (it) 2009-04-27 2009-04-27 Organo di sicurezza per la chiusura comandata di condotti di aerazione.

Publications (1)

Publication Number Publication Date
EP2249092A1 true EP2249092A1 (de) 2010-11-10

Family

ID=42111735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10159353A Withdrawn EP2249092A1 (de) 2009-04-27 2010-04-08 Sicherungseinheit zum gesteuerten Verschliessen von Belüftungskanälen

Country Status (2)

Country Link
EP (1) EP2249092A1 (de)
IT (1) IT1393894B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20208031U1 (de) * 2002-05-23 2002-08-08 Schabus Wolfgang Sicherheitsfernsteuerungssystem zum Steuern von Abluftfördergeräten
GB2403530A (en) * 2003-05-07 2005-01-05 Natural Gas Services Ltd Gas burner control
DE102006005960A1 (de) 2006-02-08 2007-08-09 Berbel Ablufttechnik Gmbh Lüftungsvorrichtung für Gebäude und Verfahren zur Bestimmung einer Sollstellung einer Schließvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20208031U1 (de) * 2002-05-23 2002-08-08 Schabus Wolfgang Sicherheitsfernsteuerungssystem zum Steuern von Abluftfördergeräten
GB2403530A (en) * 2003-05-07 2005-01-05 Natural Gas Services Ltd Gas burner control
DE102006005960A1 (de) 2006-02-08 2007-08-09 Berbel Ablufttechnik Gmbh Lüftungsvorrichtung für Gebäude und Verfahren zur Bestimmung einer Sollstellung einer Schließvorrichtung

Also Published As

Publication number Publication date
IT1393894B1 (it) 2012-05-17
ITBO20090259A1 (it) 2010-10-28

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