KR0132123B1 - Apparatus for preventing the combustion of remained gas in a fire extinguisher - Google Patents

Abstract

An apparatus for preventing combustion remaining gas in a fire extinguishment having : an opening/closing means(10) opening or closing a gas passage(2) connected to a nozzle(N); a microcomputer(12) appling an electric signal to an opening/closing means(10); and a knob operation sensing part(14) sensing the operation of a knob(NB) to transmit a sensed electric signal to microcomputer(12); is disclosed. Thereby, it is possible to completely break gas fed to burner at the same time of extinguishing.

Description

Residual gas combustion prevention device in fire extinguishing

1 is a schematic diagram illustrating the invention.

2 is a view for explaining the opening and closing means of FIG. 1, (a) shows a state in which the synchronous motor as the opening and closing means is mounted, and (b) shows the gas passage opening and closing action of the synchronous motor as the opening and closing means. Drawing,

3 is a view schematically showing a gas passage supplied to a conventional nozzle.

＊ Explanation of symbols for main parts of drawing

1: Residual gas combustion prevention device in fire extinguishing 2: Gas passage

10: opening and closing means 12: microcomputer

14: knob operation detection unit 16: mounting hole

18: gas opening and closing hole N: nozzle

NB: Knob

The present invention relates to an apparatus for preventing residual gas combustion during extinguishing, and more particularly, to an apparatus for preventing residual gas combustion during extinguishing to completely block gas supplied to a burner at the same time as extinguishing. In order to cook with the gas appliance used in the kitchen, gas is sent from the gas supply source to the gas appliance in the kitchen of each household through a dedicated hose, and the pulse pressure in the gas appliance is stabilized to make it suitable for combustion. It is injected into the nozzle through the cock. 3 is a view illustrating a conventional gas passage from the cock to the nozzle. In general, when the gas injected from the nozzle N is to be blocked, the gas inlet passage of the cock C is closed by operating the knob NB. Ensure that no more gas enters the nozzle. However, there is a problem that the user feels that the gas leaks because the gas continues to flow after the burner flame is extinguished due to the remaining gas remaining from the gas inflow passage of the cock to the nozzle. In addition, there is another problem that the ignition time is delayed because the gas passage is empty from the gas inflow passage of the cock to the nozzle when the flame is re-ignited in the burner. The present invention has been invented to solve the above problems, an object of the present invention is to install the opening and closing means at the end of the nozzle to extinguish the burner flame by the user's choice when the gas injected from the nozzle end of the nozzle To prevent the remaining gas leakage after the burner flame is turned off in order to provide the user with a sense of safety, and to provide a device for preventing combustion of residual gas during fire extinguishing that facilitates ignition by shortening the ignition time upon re-ignition. have. In order to achieve the above object, the present invention includes an opening and closing means for mounting on and off the supply passage to the nozzle in the injection position of the nozzle; A microcomputer for applying a predetermined electrical signal to the opening and closing means; It is a device for preventing residual gas combustion during extinguishing, characterized in that it is composed of a knob operation detection unit for sending a single operation signal to the microcomputer to operate the opening and closing means. Therefore, when the user manipulates the knob with the intention of extinguishing the burner flame, the knob operation detection unit detects the signal and sends the signal to the microcomputer. The microcomputer receives the signal and sends a nozzle closing command to the opening and closing means mounted at the end of the nozzle to bring the nozzle to the fully closed state. Hereinafter, the most preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. FIG. 1 is a view schematically illustrating the present invention. In the extinguishing device of the present invention, the residual gas combustion prevention device 1 includes opening and closing means 10 for opening and closing the gas passage 2 supplied to the nozzle N. ) And a microcomputer 12 for applying an electric signal of an operation command to the opening and closing means 10, and a knob operation detecting unit 14 for detecting an operation of a knob (NB) and sending an electric signal of the operation state to the microcomputer 12. It consists of). The opening and closing means 10 may have a variety of means. That is, the solenoid valve can be used by amplifying the applied electric signal supplied from the microcomputer 12, and can be opened and closed by a motor for driving it using a mechanical means, for example, a butterfly valve. In the present embodiment, the operation of the synchronous motor which is easy to install and which can operate correctly by the electric signal applied from the microcomputer 12 is applied. As the opening and closing means 10, the synchronous motor is shown in FIG. 2, (a) shows the mounting state of the synchronous motor 10, (b) the synchronous motor 10 is a gas cylinder The opening and closing of the furnace 2 is shown. The synchronous motor 10 has a rotation angle of a predetermined angle in accordance with the electrical signal applied from the microcomputer 12, the gas opening and closing hole 18 is directly connected to the rotation axis of the synchronous motor 10 to be perpendicular to the direction of rotation axis formation. It is formed in the same shape as the cross section of the gas passage (2) of the nozzle at the end to flow the gas only to the gas opening and closing hole (18). The synchronous motor 10 having such a configuration is mounted in the gas passage 2 adjacent to the injection portion of the nozzle N for injecting gas toward the burner as shown in (a). When the mounting state of the synchronous motor 10 is described in more detail, the gas opening / closing hole is formed in the mounting hole 16 formed perpendicular to the direction in which gas flows into the mounting portion of the synchronous motor 10 of the gas passage 2. The rotating shaft of the synchronous motor 10 in which the 18 is formed is fitted, and in this state, the gas opening and closing hole 18 is in the same line as the gas inflow direction in the gas passage 2. Therefore, as shown in (b), the direction of formation of the gas opening and closing hole 18 formed on the rotating shaft is changed by the rotation of the synchronous motor 10 to open or close the gas passage (2). In the present invention as described above, when the user operates the knob for the purpose of extinguishing a burner flame, the sensing state is detected by the knob operation detecting unit and converted into an electrical signal. The converted electric signal is applied to the microcomputer, converted into the operation command value of the opening and closing means, and sent to the opening and closing means. The opening and closing means receives the electric signal to operate the synchronous motor to change the position of the gas opening and closing hole of the rotary shaft to block the gas supply to the gas passage. In such a state, when the knob is rotated to ignite and mount the burner, the gas passage is opened by the synchronous motor operated by an electric signal having an operation command of the opening and closing means by the microcomputer to restart the gas supply. At this time, the gas is filled to the end of the injection portion of the nozzle so that the gas supplied to the burner can be quickly supplied. Since the present invention is as described above, the gas is prevented from leaking after the burner flame is turned off, so that the user can instill a sense of safety and shorten the ignition time upon re-ignition to facilitate ignition.

Claims (2)

By detecting the opening and closing means 10 for opening and closing the gas passage (2) supplied to the nozzle (N), the microcomputer 12 for applying an electric signal of the operation command to the opening and closing means 10, and the operation of the knob (NB) And a knob operation detecting portion (14) for sending an electric signal of the operation state to the microcomputer (12). According to claim 1, wherein the opening and closing means 10 is formed on the mounting shaft 16 formed in the gas passage (2) by forming a gas opening and closing hole 18 on the rotation axis of the synchronous motor at a right angle to the rotation axis of the gas passage ( 12. Residual gas combustion prevention apparatus at the time of extinguishing characterized by interrupting and resuming the gas supply of 12).