Driving method of gas flameout protection valve
A driving method and flameout protection technology, applied in safety valves, balance valves, valve devices, etc., to solve problems such as gas leakage and failure of the safety valve to close normally.
Inactive Publication Date: 2018-12-21
唐聪
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Problems solved by technology
[0004] Aiming at the problems existing in the prior art, the present invention provides a driving method for the gas flameout protection valve, which solves the problem in the prior art that the safety valve cannot be closed normally due to abnormal power failure, resulting in gas leakage
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[0039] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0040] The present invention provides a driving method of a gas flameout protection valve. The method is based on a gas flameout protection valve. The gas flameout protection valve includes a housing, a solenoid valve, a passive valve, an electric actuator, an output shaft of the electric actuator, and a lever. The methods described include:
[0041] The solenoid valve and the passive valve, which are arranged in a series relationship with each other in the housing, are in the state of closing the valve before the electric actuator pushes the lever. When the electric actuator drives the lever forward to open the solenoid valve, the passive valve The valve is always closed...
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The invention discloses a driving method of a gas flameout protection valve. The method is based on the gas flameout protection valve. The gas flameout protection valve comprises a casing, a solenoidvalve, a passive valve, an electric actuator, an electric actuator output shaft and a lever. The method includes the steps that the solenoid valve and the passive valve which are connected in series and arranged in the casing are arranged in a closed valve state before the electric actuator pushes the lever, the passive valve is closed all the time when the electric actuator drives the lever to eject the solenoid valve open in the forward direction, only after the electric actuator ejects the solenoid valve open and after the lever is driven in the reversed direction to a safe way, the passivevalve is pulled open, a gas passage is opened, and gas can be conveyed to a burner to be ignited. The driving method of the gas flameout protection valve solves the problem that in the prior art, dueto abnormal power failures, a safety valve cannot be normally closed, and consequently gas leakage is caused.
Description
technical field [0001] The invention relates to the field of gas combustion safety control, in particular to a driving method for a gas flameout protection valve. Background technique [0002] At present, most of the valves with thermocouple flameout protection devices on the market are manual. The user presses down the operating rod of the valve to drive and open the thermocouple solenoid valve, and presses the movable iron piece of the solenoid valve to the bottom to connect with the coil. The fixed core with coil is attached. At this time, the circuit will first supply a short-term current to the coil. After the user releases his hand, the movable iron piece can be temporarily attracted and fixed on the iron core to keep the valve open. After waiting for the gas flowing out of the valve to be ignited, heat the thermocouple so that the thermocouple generates electricity to the fixed iron core, and continue to keep the movable iron piece sucked on the fixed iron core so tha...
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IPC IPC(8): F16K17/36
CPCF16K17/36
Inventor 唐聪
Owner 唐聪