CN209588094U - A kind of low-heat value gas directly ignites its tower head of high energy ignition unit and application - Google Patents
A kind of low-heat value gas directly ignites its tower head of high energy ignition unit and application Download PDFInfo
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- CN209588094U CN209588094U CN201920192261.6U CN201920192261U CN209588094U CN 209588094 U CN209588094 U CN 209588094U CN 201920192261 U CN201920192261 U CN 201920192261U CN 209588094 U CN209588094 U CN 209588094U
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Abstract
It directly ignites high energy ignition unit and application its tower head the utility model relates to a kind of low-heat value gas, igniter includes high-voltage generating unit, igniting generating unit, control unit；Generating unit of lighting a fire includes power semiconductor device, capacitive energy storage element, high-frequency pulse transformer, ignitor, the high-voltage dc voltage that high-voltage generating unit generates is the charging of capacitive energy storage element, power semiconductor device is connected in control unit, it controls capacitive energy storage element and discharges high-tension current, it boosts again through high-frequency pulse transformer, puncture the air gap and form electric spark, realizes igniting.Using the tower head of the igniter, including plate electrode, alumina insulation ceramics, electrode mounting bracket, ignition gap, igniting earthing pole etc..The utility model controls capacitor electric discharge by power semiconductor device, instead of gas discharge switch element, improves the reliability of long-term continuous service, improves ignition results；The design of tower head electrode installation solves the Insulation Problems of ignitor.
Description
Technical field
The utility model relates to the low-heat value gas of technical field of smelting to diffuse ignition system, and in particular to a kind of low heat value
Coal gas directly ignites high energy ignition unit and application its tower head.
Background technique
The low-heat value gas byproduct such as blast furnace gas, coal gas of converter, these low-heat can be generated in modern smelt production
Value coal gas can be utilized again in the production of subsequent handling.The low-heat value gas that cannot be made full use of, needs by putting
Scatterplot fire system lights discharge, to avoid gas poisoning and endangers environment.Since this calorific value of gas is low, there is igniting
Difficult problem is usually taken and uses high heating value gas as igniting gas source point fire, is increased to environment temperature and is enough to make low heat value
When coal gas self-sustaining burning, it can just turn off igniting gas source.This release ignition system control is more complex, and high heating value gas is needed to draw
Combustion, can largely consume high heating value gas, to increase enterprise's production cost in this way.
Furthermore low-heat value gas diffuses the gas discharge switch element of igniter in ignition system due to needing to puncture gas
Gap can inherently generate electric spark, there is very big energy loss, and generate a large amount of heat, to make continuing working for device
Time is very short, influences the working performance of igniter.
In addition, when low-heat value gas is used for blast furnace gas, since the ignitor in release ignition system is installed on room
Outer outdoor high-altitude, installation position temperature is very high, and the voltage of ignitor is again very high, and Insulation Problems are difficult to solve, working life
Also it does not grow.
Utility model content
To overcome the deficiencies in the prior art described above, the purpose of this utility model is to provide a kind of energy longtime runnings, even
The continuous electric spark for generating enough energy is used as high temperature dot fire source, and the low-heat value gas of raising ignitor insulating properties directly ignites height
It can igniter and the tower head using it.
The utility model is achieved using following technical scheme:
A kind of low-heat value gas directly ignites high energy ignition unit, including high-voltage generating unit, igniting generating unit, control
Unit, the high-voltage generating unit include boosting unit and rectification unit；The igniting generating unit includes power semiconductor device
Part, capacitive energy storage element, high-frequency pulse transformer and ignitor, the power semiconductor device are parallel to high pressure and generate list
Member, the both ends of the power semiconductor device be connected to one end of capacitive energy storage element, high-frequency pulse transformer it is primary
One end of side；The other end of the capacitive energy storage element is connected with the other end of the primary side of high-frequency pulse transformer；It is described
Ignitor is series at the secondary side of high-frequency pulse transformer；The high-voltage dc voltage that the high-voltage generating unit generates is for electricity
Hold energy-storage travelling wave tube charging, described control unit is for being connected the power semiconductor device, the power semiconductor device control
The capacitive energy storage element release high-tension current is made, is boosted again through the high-frequency pulse transformer, breakdown the air gap is formed
Electric spark realizes igniting.
Preferably, the boosting unit is followed in series to form by input power, switch, duplex frequency boostering transformer.
Preferably, the boosting unit further includes fuse.
Preferably, the secondary side of the duplex frequency boostering transformer is connected to rectification unit, and the rectification unit is that bridge-type is whole
Current circuit.
Preferably, it is connected between the secondary side and bridge rectifier of the duplex frequency boostering transformer by current-limiting resistance.
Preferably, the input side of described control unit is connected to the primary side of duplex frequency boostering transformer, control unit it is defeated
Side is connected to the control terminal of power semiconductor device out.
Preferably, described control unit further includes secondary side connection the bridge-type rectification circuit input end, bridge of step-down transformer
Formula rectification circuit output end is in parallel with multiple capacitors and three terminal regulator respectively.
Preferably, the power semiconductor device is SCR or MOSFET or IGBT or GTO.
In addition, the utility model is also claimed and a kind of directly ignites high energy ignition unit using above-mentioned low-heat value gas
Tower head, including plate electrode, alumina insulation ceramics, electrode mounting bracket, ignition gap, igniting earthing pole and blast furnace gas go out
Mouthful, directly the ignite ignitor of high energy ignition unit of the anode of the plate electrode and the low-heat value gas is connect, described
Electrode mounting bracket is installed on the side of the tower head, and alumina insulation ceramics are provided in the electrode mounting bracket, are passed through
Plate electrode is insulated in the electrode mounting bracket by the alumina insulation ceramics, the anode of the plate electrode with
The ignition gap is formed between the igniting earthing pole.
The utility model advantageous effects obtained:
(1) igniter of the utility model, power supply pass through bridge rectifier electricity after duplex frequency boostering transformer boosts
Road is rectified charges to capacitive energy storage element, makes efficiently quickly power semiconductor device conducting, electric power by control loop
Semiconductor devices controls capacitive energy storage element and discharges high-tension current, boosts again through high-frequency pulse transformer, punctures the air gap
Electric spark is formed, realizes igniting, ignite low calorific value coal oxygen mixture, solves the low-heat value gas gas source that needs to light a fire and is drawn
The problem of combustion, reduces production cost；
(2) igniter of the utility model controls capacitor electric discharge by power semiconductor switches device, instead of common
Gas discharge switch element, there is small power consumption, calorific value is small, the high feature of working frequency, and improve long-term continuous service can
By property, ignition results are improved；Power semiconductor device applied by capacitive energy storage component discharges control device preferably uses SCR
Or MOSFET or IGBT or GTO, realize the function of extending the igniter service life；
(3) the utility model uses unique mounting means, and electrode mounting bracket is installed on blast furnace gas chimney tower head
Side, plate electrode is insulated in electrode mounting bracket, in the anode of plate electrode by alumina insulation ceramics
Igniting earthing pole between form ignition gap, ensure that the safe distance of electrode He other positions, by enough spaces away from
From preventing other positions of electrode from generating unexpected spark discharge using air dielectric, solve the Insulation Problems of ignitor.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Attached drawing 1 be the utility model low-heat value gas directly ignite high energy ignition unit preferred embodiment specific implementation electricity
Lu Tu；
Attached drawing 2 is that the utility model application low-heat value gas directly ignites the structural schematic diagram of high energy ignition unit tower head；
Description of symbols: 1-blast furnace gas outlet；2-igniting earthing poles；3-ignition anodes；4-alumina insulations
Ceramics；5-ignition gaps；6-electrode mounting brackets
Specific embodiment
Hereinafter reference will be made to the drawings, describes the technical solution of the utility model in detail by way of example.It needs herein
Illustrate, the explanation of these way of example is used to help to understand the utility model, but does not constitute practical new to this
The restriction of type.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A, individualism B exist simultaneously tri- kinds of situations of A and B, the terms
"/and " it is to describe another affiliated partner relationship, indicate may exist two kinds of relationships, for example, A/ and B, can indicate: individually depositing
In A, two kinds of situations of individualism A and B, in addition, character "/" herein, typicallying represent forward-backward correlation object is a kind of "or" pass
System.
Fig. 1 is that directly the ignite physical circuit of high energy ignition unit of low-heat value gas provided by the embodiment of the utility model shows
It is intended to, wherein a kind of low-heat value gas of the utility model directly ignites high energy ignition unit, including high-voltage generating unit, point
Fiery generating unit, control unit, the high-voltage generating unit include boosting unit and rectification unit；Generating unit of lighting a fire includes electricity
Power semiconductor devices, capacitive energy storage element C0, high-frequency pulse transformer T3, ignitor P1, the power semiconductor device is simultaneously
It is coupled to high-voltage generating unit, the both ends of power semiconductor device are connected to one end of capacitive energy storage element C0, high-frequency impulse
One end of the primary side of transformer T3；The other end of capacitive energy storage element C0 is another with the primary side of high-frequency pulse transformer T3
End is connected；The ignitor P1 is series at the secondary side of high-frequency pulse transformer T3；The high pressure that high-voltage generating unit generates
DC voltage is used to charge for capacitive energy storage element C0, and control unit is for being connected the power semiconductor device, the electric power
Semiconductor devices controls the capacitive energy storage element C0 and discharges high-tension current, boosts again through the high-frequency pulse transformer T3,
Puncture the air gap and form electric spark, realizes igniting.
As shown in Figure 1, wherein power semiconductor device can be SCR11, and boosting unit is by input power, switch K, work
Frequency step-up transformer T1 is followed in series to form；Boosting unit further includes fuse F1.The secondary side of duplex frequency boostering transformer T1 connects
It is connected to rectification unit.Further, rectification unit is bridge rectifier IV, the secondary side and bridge-type of duplex frequency boostering transformer T1
It is connected between rectification circuit IV by current-limiting resistance R1.The input side PS of control unit is connected to the one of duplex frequency boostering transformer T1
Secondary side, the outlet side VCC of control unit are connected to the control terminal of power semiconductor device, and control unit includes step-down transformer
T2。
Embodiment as a further preference continues as shown in Figure 1, control unit includes the secondary side of step-down transformer T2
Connect bridge rectifier DM1FBH15 input terminal, bridge rectifier DM1FBH15 output end respectively with capacitor, three-terminal voltage-stabilizing
Device P2 is in parallel.The capacitor of control unit can be capacitor C5, C6 and electrolytic capacitor C3, C4.Capacitor C5 and electrolytic capacitor C3 difference
It is parallel to the side Three-end voltage stabilizer P2, the anode of electrolytic capacitor C3 is connected to the input terminal V of Three-end voltage stabilizer P2IN, electrolysis
The cathode of capacitor C3 is connected to the ground terminal GND of Three-end voltage stabilizer P2.Capacitor C6 and electrolytic capacitor C4 are parallel to three ends respectively
The other side voltage-stabilizing device P2, the anode of electrolytic capacitor C4 are connected to the output end V of Three-end voltage stabilizer P2OUT, electrolytic capacitor C4's
Cathode is connected to the ground terminal GND of Three-end voltage stabilizer P2；Preferably, the specification of capacitor C5, C6 can be 103/63V, electrolysis
The specification of capacitor C3, C4 can be 100UF/50V.
In the above-mentioned technical proposal of the utility model, the capacitive energy storage element for generating unit of lighting a fire can be said one
Capacitive energy storage element C0 can also be that multiple capacitors are constituted in series or in parallel, and power semiconductor device can also be
MOSFET, IGBT, GTO etc.；The corresponding control terminal conduction mode of control unit is all the method that those skilled in the art know, i.e.,
The control terminal of power semiconductor device is connected when receiving the voltage for being greater than conducting critical voltage value, and details are not described herein again.
The utility model controls energy-storage capacitor electric discharge by fast power semiconductor switch device, instead of common gas
The features such as body discharging switch element has small power consumption, and calorific value is small, and working frequency is high, avoids gas discharge switch element
Disadvantage improves the reliability of long-term continuous service, improves ignition results, solve low-heat value gas need to light a fire gas source into
The problem of row ignites, reduces production cost, and the igniter of the utility model can be adapted for blast furnace gas etc. and be difficult to stablize combustion
The igniting of the low-heat value gas of burning.
The utility model carries out final stage boosting by high-frequency pulse transformer T3, generates 10,000 volts or more of high voltage, produces
Raw high temperature electric spark, wherein capacitive energy storage element C0 is connected with the primary coil of high-frequency pulse transformer T3, loop resistance very little,
Quickly, the iron core of high-frequency pulse transformer T3 can adapt to the quick variation of magnetic flux to curent change, reduce transformer itself
Loss reduces calorific value, extends the service life, while can be improved the spark energy of electric spark, keeps ignition results more preferable.
On the basis of the low-heat value gas that the above utility model embodiment provides directly ignites high energy ignition unit, this reality
It further also proposes a kind of directly to ignite the tower head of high energy ignition unit using above-mentioned low-heat value gas with novel.
As shown in Fig. 2, directly to ignite the tower head knot of high energy ignition unit using the above-mentioned low-heat value gas of the utility model
Structure schematic diagram, including plate electrode, alumina insulation ceramics 4, electrode mounting bracket 6, ignition gap 5, igniting earthing pole 2 and height
Producer gas outlet 1, directly ignite with the low-heat value gas ignitor P1 of high energy ignition unit of the anode 3 of plate electrode are connect,
Blast furnace gas outlet is located at the upper end of blast furnace gas chimney tower head, and igniting earthing pole 2 outside blast furnace gas chimney tower head by connecing
Ground, electrode mounting bracket 6 are installed on the side of blast furnace gas chimney tower head, are provided with alumina insulation in electrode mounting bracket 6
Plate electrode is insulated in electrode mounting bracket 6, the anode 3 of plate electrode by ceramics 4 by alumina insulation ceramics 4
Ignition gap is formed between igniting earthing pole 2.
The utility model uses above-mentioned unique mounting means, ensure that the safe distance of electrode He other positions, passes through
Enough space lengths prevent the other positions of electrode from generating unexpected spark discharge and influence igniting effect using air dielectric
Fruit.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
- The high energy ignition unit 1. a kind of low-heat value gas directly ignites, which is characterized in that occur including high-voltage generating unit, igniting Unit, control unit, the high-voltage generating unit include boosting unit and rectification unit；The igniting generating unit includes electric power Semiconductor devices, capacitive energy storage element, high-frequency pulse transformer and ignitor, the power semiconductor device are parallel to high pressure Unit is generated, the both ends of the power semiconductor device are connected to one end of capacitive energy storage element, high-frequency pulse transformer Primary side one end；The other end of the capacitive energy storage element is connected with the other end of the primary side of high-frequency pulse transformer It connects；The ignitor is series at the secondary side of high-frequency pulse transformer；The high voltage direct current that the high-voltage generating unit generates Pressure charges for capacitive energy storage element, and described control unit for the power semiconductor device to be connected, partly lead by the electric power Body device controls the capacitive energy storage element and discharges high-tension current, boosts again through the high-frequency pulse transformer, punctures air Gap forms electric spark, realizes igniting.
- The high energy ignition unit 2. low-heat value gas according to claim 1 directly ignites, which is characterized in that the boosting is single Member is followed in series to form by input power, switch, duplex frequency boostering transformer.
- The high energy ignition unit 3. low-heat value gas according to claim 2 directly ignites, which is characterized in that the boosting is single Member further includes fuse.
- The high energy ignition unit 4. low-heat value gas according to claim 2 directly ignites, which is characterized in that the power frequency liter The secondary side of pressure transformer is connected to rectification unit, and the rectification unit is bridge rectifier.
- The high energy ignition unit 5. low-heat value gas according to claim 4 directly ignites, which is characterized in that the power frequency liter It is connected between the secondary side and bridge rectifier of pressure transformer by current-limiting resistance.
- The high energy ignition unit 6. low-heat value gas according to claim 1-5 directly ignites, which is characterized in that institute The input side for stating control unit is connected to the primary side of duplex frequency boostering transformer, and the outlet side of described control unit is connected to electric power The control terminal of semiconductor devices.
- The high energy ignition unit 7. low-heat value gas according to claim 6 directly ignites, which is characterized in that the control is single Member further include step-down transformer secondary side connection bridge-type rectification circuit input end, respectively with multiple capacitors and three terminal regulator simultaneously The bridge rectifier output end of connection.
- 8. -5,7 described in any item low-heat value gas directly ignite high energy ignition unit according to claim 1, which is characterized in that The power semiconductor device is SCR or MOSFET or IGBT or GTO.
- The tower head of high energy ignition unit 9. a kind of application such as described in any item low-heat value gas of claim 1-8 directly ignite, It is characterised in that it includes plate electrode, alumina insulation are ceramic, electrode mounting bracket, ignition gap, light a fire earthing pole and blast furnace Gas exit, directly the ignite ignitor of high energy ignition unit of the anode of the plate electrode and the low-heat value gas connect It connects, the electrode mounting bracket is installed on the side of the tower head, and alumina insulation pottery is provided in the electrode mounting bracket Plate electrode is insulated in the electrode mounting bracket, the plate electrode by porcelain by the alumina insulation ceramics Anode and the igniting earthing pole between form the ignition gap.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920192261.6U CN209588094U (en) | 2019-02-12 | 2019-02-12 | A kind of low-heat value gas directly ignites its tower head of high energy ignition unit and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920192261.6U CN209588094U (en) | 2019-02-12 | 2019-02-12 | A kind of low-heat value gas directly ignites its tower head of high energy ignition unit and application |
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| Publication Number | Publication Date |
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| CN209588094U true CN209588094U (en) | 2019-11-05 |
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| CN201920192261.6U Active CN209588094U (en) | 2019-02-12 | 2019-02-12 | A kind of low-heat value gas directly ignites its tower head of high energy ignition unit and application |
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