CN2422547Y

CN2422547Y - Industrial electronic igniter

Info

Publication number: CN2422547Y
Application number: CN 00223176
Authority: CN
Inventors: 逯兆林
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-02
Filing date: 2000-06-02
Publication date: 2001-03-07
Anticipated expiration: 2010-06-02

Abstract

The utility model relates to an industrial electronic igniter. The inner part of a tubular outer electrode which extends along the length direction and is at least provided with a gas inlet is provided with an inner electrode which extends along the same axial direction with the tubular outer electrode and keeps electric insulation via an insulation support structure. The end part of the tubular outer electrode is provided with an approaching structure with the required space of the ignition and electric discharge on an ignition end. An air flow passage is arranged between a gas inlet and the ignition end of the tubular outer electrode. The ignition end is provided with a fire head stable combustion structure which wraps around the ignition end and is provided with an inward concave capacity space in an extension mode. The fire head stable combustion structure is communicated with the air flow passage in the tubular outer electrode through an air flow division passage of which the hole diameter is smaller than the hole diameter of the ignition end.

Description

Industrial electronics igniter

The utility model relates to a kind of industrial electronic ignition device.

The structure of the electronic ignition device of present industrial use, be to extend along its length and be provided with simultaneously in the outer tubular electrode of two kinds of gases inputs of air import that combustion gas and distribution use one, through the insulation supporting structure be provided with external electrode same axis direction on extend and with the interior electrode of its maintenance electric insulation, two interelectrode electrical insulation capabilities are to be realized and decision by the gas barrier layer thickness of beeline therebetween.The end of this two electrode has the close structure that keeps promising igniting discharge desired spacing in the igniting port.Outer tubular electrode and interior interelectrode pipe internal clearance space are the gas channel between fuel gas inlet and igniting port.The air that combustion gas and distribution are used can be by two interelectrode electrion spark ignitions, as the burning things which may cause a fire disaster of igniting usefulness through the ejection of igniting port the time after air inlet enters and mixes.Find in the use that the Ignition Stability of this sparking mode is poor, be subject to import the influence that gas flow rate changes, the flow of any gas and/or flow velocity are excessive or too smallly all can cause the situation that is difficult to light.In addition, only depend on the gas barrier layer to insulate between outer tubular electrode and the interior electrode that in its pipe, is provided with,, aspect assurance insulation effect reliable and stable, also be prone to problem for the employed high voltage of igniting.

Given this, the purpose of this utility model is to provide a kind of industrial electronics igniter that can improve the reliability of result of use at above-mentioned situation.

The basic structure of the industrial electronics igniter of the utility model, be still and extending along its length and be provided with at least in the outer tubular electrode of combustion gas input port, through the insulation supporting structure be provided with its same axis direction on extend and with the interior electrode of its maintenance electric insulation, the end of two electrodes has the close structure that keeps promising igniting discharge desired spacing in the igniting port, between combustion gas input port in the outer tubular electrode and igniting port gas channel is arranged.Wherein, be provided with one in the igniting port and hold around it and have the duration and degree of heating that extends shape indent volume space and surely fire structure, have at least an aperture to be connected between the interior gas channel of this extensions shape indent volume space and outer tubular electrode less than the air splitter passage in the aperture, port of lighting a fire.Generally speaking, it is better for a plurality of form that is provided with around the igniting port to make said duration and degree of heating surely fire the air splitter passage that is connected between gas channel in extension shape indent volume space and the outer tubular electrode in the structure.Because the duration and degree of heating that is provided with in the igniting port surely fires and holds around this igniting port in the structure and have that to extend shape indent volume space be the version of outwards opening, test shows, after the ejection of combustion gas self-ignition port, can extend at this and form the eddy current state that circles round in indent volume space of shape, and can fully contact with the required air that burns and mix, also have replenishing simultaneously through several air splitter passage output from the lasting of the combustion gas in the outer tubular electrode, form one in the indent volume space of shape and be difficult for being subjected to the gas group of easily lighting of gas flow and/or flow rate effect thereby can extend, and can form the burning duration and degree of heating of " ever-burning flame " formula that is difficult for extinguishing after lighting at this.Therefore, the electronic ignition device of the utility model said structure can according to the needs that use remain a duration and degree of heating that is in the smooth combustion state as the igniting burning things which may cause a fire disaster for using, after the combustion gas of closing gas inlet was imported, this duration and degree of heating just can extinguish.Simultaneously, because the combustion gas in the utility model igniter is after the ejection of igniting port, surely fire in the extension shape indent volume space of structure at duration and degree of heating and to mix with air that the back lighted, therefore the air input import that requisite distribution is used in traditional structure, be essential no longer just in the above-mentioned igniter of the utility model, it both can keep, and also can remove, and, structure is further simplified with after its removal.

On the basis of said structure,, can in said, be outside equipped with the dead ring nested structure that tubulose extends, the ring set structure that the insulating materials such as ceramic material commonly used of for example can serving as reasons are made by electrode for improving the insulating properties of igniter.For making it greater flexibility and convenience can be arranged when the igniter processing and manufacturing of different length, the dead ring nested structure that said this tubulose is extended is served as reasons and is had not that the insulation ring set unit member head and the tail at isometrical two ends connect to form successively.The quantity that has the insulation ring set unit member at isometrical two ends not when use is more, may wait in intensity or stability after its head and the tail connect successively and bring some inconvenience aspect some, can extend the monolithic devices location structure that is equipped with outside the dead ring nested structure with the identical bearing of trend of its maintenance this moment at the tubulose that is not connected to form successively by the insulation ring set unit member head and the tail with isometrical two ends, as using the location structure of the integral cannula form that stainless steel and other metal materials commonly used makes.Obviously, these insulation measures that further increase all are favourable for igniter stabilizing and increasing of insulating properties under various service conditions.

Below foregoing of the present utility model is further described with embodiment shown in the drawings.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.

Fig. 1 is a kind of structural representation of the industrial electronics igniter of the utility model.

Fig. 2 is the A-A structural representation of Fig. 1.

In industrial electronics igniter as shown in the figure, have one to extend along its length and be provided with combustion gas input port 6 and remain with the outer tubular electrode 4 of air-in 7, in it through ceramic insulation supporting structure 3 be provided with external electrode 4 same axis directions on extend and maintain the interior electrode 2 of spatial separation with it.The end of two electrodes has the close structure that keeps promising igniting discharge desired spacing in igniting port 11, spatial separation promptly is the gas channel 9 by 11 to the igniting port of combustion gas input ports 6 in the pipe that outer tubular electrode 4 and interior electrode are 2.The other end of this device relative with igniting port 11 is the high voltage source joint 8 that two electrodes are connected with external power.Being provided with one in igniting 11 outer ends, port surrounds around this igniting port and duration and degree of heating with extension shape indent volume space 12 surely fires structure 1.This extension shape indent volume space 12 is provided with the air splitter passage 10 of several apertures less than igniting 11 apertures, port around being looped around this igniting port 11, keep being communicated with gas channel 9 in the outer tubular electrode 4.Outside interior electrode 2, also be provided with the dead ring nested structure 5 of the tubulose extension of forming with head and the tail ways of connecting successively by some ceramic insulation ring set unit member with isometrical two ends not.Difference according to igniter length, as the stability of this tubulose being extended dead ring nested structure 5 higher requirement is arranged, can also outside this tubulose extends dead ring nested structure 5, be equipped with location structure again with the stainless steel and other metal materials integral cannula form of the identical bearing of trend of its maintenance.

Claims

1. industrial electronics igniter, extending along its length and be provided with at least in the outer tubular electrode (4) of combustion gas input port (6), through insulation supporting structure (3) be provided with its same axis direction on extend and with the interior electrode (2) of its maintenance electric insulation, the end of two electrodes has the close structure that keeps promising igniting discharge desired spacing in igniting port (11), between combustion gas input port (6) in the outer tubular electrode (4) and igniting port (11) gas channel (9) is arranged, it is characterized in that being provided with one and hold around it and have the duration and degree of heating that extends shape indent volume space (12) and surely fire structure (1), have at least an aperture to be connected between the interior gas channel (9) of this extensions shape indent volume space (12) and outer tubular electrode (4) less than the air splitter passage (10) in the aperture, port (11) of lighting a fire in igniting port (11).

2. industrial electronics igniter as claimed in claim 1, it is a plurality of for what be provided with on every side in the port (11) of lighting a fire to it is characterized in that said duration and degree of heating surely fires the air splitter passage (10) that is connected between the gas channel (9) that extends in the structure (1) in shape indent volume space (12) and the outer tubular electrode (4).

3. industrial electronics igniter as claimed in claim 1 or 2 is characterized in that electrode in said (2) is outside equipped with the dead ring nested structure (5) that tubulose extends.

4. industrial electronics igniter as claimed in claim 3 is characterized in that dead ring nested structure (5) that said tubulose extends serves as reasons and have not that the insulation ring set unit member head and the tail at isometrical two ends connect to form successively.

5. industrial electronics igniter as claimed in claim 4 is characterized in that said by having the monolithic devices location structure that is equipped with outside the tubulose extension dead ring nested structure (5) that the insulation ring set unit member head and the tail at isometrical two ends do not connect to form successively with the identical bearing of trend of its maintenance.