A self -power failure device when detecting combustible gas leakage
A technology of gas leakage and self-cutting power, applied in the direction of automatic disconnection emergency protection devices, circuit devices, emergency protection circuit devices, etc., can solve problems such as pressure gauge damage, national loss, pipeline rupture, etc., and achieve low device cost, Low maintenance cost and stable transmission distance
Active Publication Date: 2018-01-02
TENENG NATURAL GAS CO LTD
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Problems solved by technology
The general flammable gas leakage is nothing more than damage to the valve gasket, cracks, leakage, or damage to the pressure gauge, or rupture of the pipeline, etc., although households and flammable gas factories are equipped with flammable gas leakage alarms device to remind people, but the power supply is still on at this time, not everyone knows the gas leakage, in this case, people's opening and closing of electrical equipment will directly lead to the occurrence of fire, or even explosion, causing people and great loss to the country
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specific Embodiment approach 1
[0015] Specific implementation mode one: combine Figure 1-4As shown, a self-power-off device when detecting flammable gas leakage includes an upper computer part 1 and a lower computer part 2, wherein the upper computer part 1 includes a power supply circuit 3, the upper computer single-chip minimum system 4, the upper computer Bluetooth transmission module 5, Self-power-off relay circuit 6 and indicator light circuit 7; the self-power-off relay circuit 6 of host computer part 1 comprises resistance R2, diode D1, triode Q1, relay RL1, air switching device 61, incoming line terminal 62 and outgoing line terminal 63, Among them, the P0.0 pin of the minimum system 4 of the upper computer microcontroller is connected to the base of the transistor Q1 through the resistor R2; one end of the coil of the relay RL1 is connected to the output end of the power circuit 3, and the other end is connected to the collector of the transistor Q1. The coil of RL1 is anti-parallel with diode D1;...
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The invention relates to the technical field of combustible gas leakage detection and safety, in particular to an automatic power-off device during detection of combustible gas leakage. The automatic power-off device adopts a 2M007 type combustible gas sensor and can be used for detection of various combustible gases in family and industry, so that the measurement range and the application range of the device are wider, multiple purposes of the device are achieved, and the fund is greatly saved; an HC-06 Bluetooth transmission module is adopted, no obstacle exists between an infrared emitting diode and a photodiode when an infrared transmission module is used for data transmission, the above defect can be overcome by Bluetooth transmission, the transmission speed is fast and stable, and the transmission distance is far; a battery is used for supplying power to an indicator lamp of a diode D3 after power off, a user is reminded of combustible gas leakage by a power-off signal and the indicator lamp brightening signal, and the information is more reliable and stable; and by the device, the power can be immediately cut off after combustible gas is leaked, huge casualty and property loss generated by manual misoperation are prevented.
Description
technical field [0001] The invention relates to the technical field of flammable gas leakage detection and safety, in particular to a self-power-off device when detecting flammable gas leakage. Background technique [0002] In recent years, with the continuous development of science and technology, flammable gases such as natural gas and coal gas have entered our lives, which not only brings convenience, but also brings a lot of harm. On the one hand, combustible gas can be burned, and on the other hand, some gases are poisonous, such as carbon monoxide, etc.; the leakage of combustible gas will cause serious safety hazards. The power switch, because at the moment of turning on the light, a current will be generated to break through the air, and heat will be generated to detonate the flammable gas or cause it to catch fire. When natural gas leaks, when the concentration in the air reaches 25%, it can cause hypoxia in the human body and cause damage to the nervous system. In...
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IPC IPC(8): H02H5/00
Inventor 李华章
Owner TENENG NATURAL GAS CO LTD