Ground detonation type ignition device

Abstract

The invention relates to a ground detonation type ignition device which comprises a fuel gas pipeline, an air pipeline and an ignition part. The fuel gas pipeline and the air pipeline are sequentially connected in series with a Y-shaped filter, a flow regulating valve, a flowmeter, a pressure reducing valve, a switching valve and a pressure gauge; the outlet ends of the fuel gas pipeline and the air pipeline are respectively communicated to the inlet end of a combustion chamber; the outlet end of the combustion chamber is communicated with a detonation pipe; the ignition part comprises a high energy generator arranged in an explosion-proof tank and an ignition rod; a protection sleeve is arranged outside the ignition rod. The ground detonation type ignition device has the benefits that a mixing ratio of fuel gas and air which are filled into the combustion chamber can be effectively regulated, so that the mixing ratio of mixed gas reaches the upper limit of the detonation range and the success probability of detonation is improved; the protection sleeve is arranged outside the ignition rod, so that the leakage of the ignition rod is prevented, and safety performance is improved; meanwhile, the high energy generator is arranged in the explosion-proof tank and is completely isolated from the outside, so that complete explosion prevention is realized and accidents are reduced.

Description

technical field [0001] The invention relates to an ignition device, in particular to a ground deflagration type ignition device. Background technique [0002] The principle and characteristics of the conventional ignition mode of the existing flare are described as follows: [0003] (1) Conventional ground deflagration ignition method. Its principle is that the purified air and fuel gas with a certain flow rate and pressure are mixed according to a certain ratio through their respective regulating butterfly valves, and then sent to the combustion chamber and deflagration pipe of the "ground igniter", and the regulating butterfly valve is closed after it is full; Press the ignition button to make the high-energy generator output about 2500v high-voltage electricity, which is supplied to the ignition rod through the high-voltage wire; in the combustion chamber, the discharge tip of the ignition rod generates electric sparks to ignite the mixture of fuel gas and air in it. Ga...

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Problems solved by technology

[0004] The characteristics of this ignition method are: first, because the manual gas distribution is only based on feeling, the concentration of the mixed gas is only between the upper and lower explosion limits, and the mixture gas can deflagrate only when there is spark in the combustion chamber; its gas distribution deflagration The rate is generally only 50%; second, the cycle of one operation is long; third, only the pressure reducing valve assembly is used, there is no corresponding flow control unit, and there is an external leakage cable, so the success rate of ignition is low, the adaptability is poor, and there is no With explosion-proof features

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