The burning torch that can detect ignition flame
Technical field
The present invention relates to a kind of gas furnace and light the burning torch of combustion gas, especially the burning torch that can utilize the ion detection mode that ignition flame is detected.
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Background technology
Burning torch is as the ignition installation of the burning mixture in the ignition combustion device, be applied in medium-sized, the large-scale burners such as burning coal gas, liquefied gas, natural gas, it is as the important auxiliary equipment of burner, because of electrion produces spark the fuel gas in it is lighted between the electrode of burning torch and the firing gun body during work, again by the ignite combustion gas of main burner of burning torch flame; The basic demand of burning torch is exactly it can be safely, in time with in the burner burner or the burning mixture in the burner hearth light, prevent that burning mixture from assembling because of in time not lighting, if do not have and can in time light, danger such as existence blast.The burning torch of prior art, as name be called " high-efficiency long-life heat-storage type burner electronic ignition rifle ", the patent No. is the disclosed technical pattern of utility model patent file of ZL03206841.7, mostly only have single ignition function, do not have the function of flame monitoring; Existence can not be as required in time in the ignition combustion device burner or the potential safety hazard of the burning mixture in the burner hearth, produces security incidents such as blast when serious, causes device damage, even threaten operating personnel's personal safety.In the prior art, also there is the partial firing rifle to adopt the checkout gear that whether gas is lighted in the test point firelock, but because ability is little, reasons such as installing space is narrow and small mostly are the complicated checkout gears of an additional cover outside burning torch, and the detection effect of himself is undesirable, and detector probe is usually located at the high-temperature area of flame, time is grown slightly and has just been burnt out, and causes its life-span shorter, also the degree of accuracy of influence detection.Igniter safe in utilization, reliable, that ignition performance is good that the user wishes is lighted in the burner burner or the burning mixture in the burner hearth.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art burning torch, a kind of ignited flammable gas in time is provided and has higher-security, detect the burning torch that can detect ignition flame of having that bonding jumper (detector probe) is in low-temperature space than the long life.
Technical scheme of the present invention: the burning torch that can detect ignition flame, comprise priming supply and gun barrel, gun barrel is the metal gun barrel, inside is cavity, the igniting pin that is connected with priming supply is arranged in the cavity, and the other end of igniting pin is provided with ignitor, forms the igniting chamber between the side of ignitor and the inwall of gun barrel, the igniting pin is arranged in the cavity through one or more spacing dielectric support block, and gun barrel is provided with fuel gas and enters the hole; It is characterized in that: at the front end of gun barrel, the detection bonding jumper is set, radially detection bonding jumper of She Zhiing and ignitor is positive gapped, forms test chamber, and the two ends of detecting bonding jumper are communicated with the metal level of gun barrel respectively.
Further feature is: described detection bonding jumper is a steel wire.
The width of described test chamber is 3-6mm.
The present invention utilizes the ion detection mode to the burning torch that flame detects, and has following characteristics:
1, timely ignited flammable gas improves its security, prevents fuel gas because of in time not lighting the risk of assembling, and effectively prevents the burner blast, avoids potential security incident hidden danger.
2, the detection bonding jumper of burning torch is in low-temperature space, contacts with flame less and that temperature is lower, prevents that it from being burnt out, and effectively prolongs its service life.
3, the function that will light a fire with flame monitoring is integrated in one, and whether the function that can realize respectively lighting a fire and detect with flame is burnt to the ignition flame of burning torch itself and to be detected.
4, detection architecture is simple, reasonable, and used detection bonding jumper is cheap.
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Description of drawings
Fig. 1 is a burning torch structural representation of the present invention;
Fig. 2 is that burning torch structure of the present invention is implemented illustration for second kind.
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The specific embodiment
The burning torch that the present invention can detect ignition flame, comprise priming supply and gun barrel 1, the top layer of gun barrel 1 or integral body are the metal gun barrels that the energy conductive metallic material constitutes, the inside of gun barrel 1 is cavity 2, the igniting pin 3 that is connected with priming supply is arranged in the cavity 2, one end of igniting pin 3 is connected with priming supply, its other end is provided with ignitor 4, form the igniting chamber 5 of certain width size between the inwall of the side of ignitor 4 and gun barrel 1, about the about 3mm of width in igniting chamber 5, process control corresponding switch is with priming supply (high pressure) and igniting pin 3, after ignitor 4 is communicated with, the inwall of the side of ignitor 4 and gun barrel 1 promptly produces the electric spark of igniting usefulness in the discharge of igniting 5 places, chamber; Igniting pin 3 is arranged in the cavity 2 through one or more pottery or other resistant to elevated temperatures dielectric support block 6 among the figure, and the suitable distance between maintenance and gun barrel 1 inwall makes other positions between igniting pin 3 and gun barrel 1 inwall not produce electric spark when energising; Gun barrel 1 is provided with fuel gas and enters hole 7, and external igniting fuel gas enters hole 7 by fuel gas and enters cavity 2, and 5 places, chamber are lighted by the electric spark that ignitor 4 produces in igniting.Above-mentioned burning torch and ignition flame carried out the checkout gear and the technology of ion detection all as prior art, is not further described at this.
Improvement of the present invention, it is front end at gun barrel 1, be provided with and detect bonding jumper 10, the detection bonding jumper 10 that axially is provided with has suitable gap with the front of ignitor 4, form test chamber 11, the two ends of detecting bonding jumper 10 are communicated with the metal level of gun barrel 1 respectively, form the loop that can conduct electricity or transmit the signal of telecommunication.This detection bonding jumper 10 can be selected the suitable steel wire of diameter for use.The width of test chamber 11 is 1-10mm, generally selects 3-6mm.
After fuel gas is lighted the formation retention flame, the conductive capability of the flame that utilization forms between ignitor 4 front ends and detection bonding jumper 10, the front end that makes ignitor 4 is by conduction flame and detection bonding jumper 10 and gun barrel 1 shell conducting, form current loop, this moment, the indicator lamp of ionic flame monitor was bright, show and light a fire successfully, do not need to light a fire once more; If flame is not lighted, then there is not flame near the front end of ignitor 4, do not possess conductive capability, can't form current loop, this moment, the indicator lamp of ionic flame monitor went out, and showed loss of ignition, needed igniting again.
From firing the fuel gas that gas entering opening 7 enters, 5 places, chamber are lighted by the electric spark that ignitor 4 produces in igniting, because the width at igniting 5 places, chamber is less, gas is in the flowing velocity very fast (reducing effect) at igniting 5 places, chamber, and fuel gas also sprays forward along the axis direction of gun barrel 1 basically at the flame that igniting 5 places, chamber form; In the front of ignitor 4, test chamber 11 positions especially, flame a little less than, and be in the internal flame or the flame core position of flame, and be low-temperature space, temperature is starkly lower than the flame envelope position of flame, the scaling loss that detection bonding jumper 10 is subjected to is very little, prevents that effectively it from being burnt out, and effectively prolongs its service life.
Among Fig. 2, the fuel gas of igniting usefulness is to feed respectively in the cavity 2, combustion gas enters by gas feed 13 by fuel gas inlet 12, combustion-supporting gas, combustion gas and combustion-supporting gas mix in cavity 2, mix by ceramic blender 14 backs, 5 places, chamber are lighted by the electric spark that ignitor 4 produces in igniting.