CN207455576U - It delivers coal in untransferable arc plasma powder burning torch - Google Patents
It delivers coal in untransferable arc plasma powder burning torch Download PDFInfo
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- CN207455576U CN207455576U CN201721356519.9U CN201721356519U CN207455576U CN 207455576 U CN207455576 U CN 207455576U CN 201721356519 U CN201721356519 U CN 201721356519U CN 207455576 U CN207455576 U CN 207455576U
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- burning torch
- wall
- arc plasma
- gas
- powder
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Abstract
It delivers coal in a kind of untransferable arc plasma of the utility model powder burning torch, the burning torch is radially disposed with powder feeding pipe, interior insulation body, outer insulator, outer wall and gas wall from inside to outside, one end of the gas wall is connected with the outer insulator, the other end is connected with the outer wall, the interior insulation body is fixed in the outer insulator, by being threadedly coupled after the inner cavity insertion of the interior insulation body with cathode taps, the inside of the outer wall is threadedly coupled the powder feeding pipe with anode head.Untransferable arc plasma ignition rifle provided by the utility model, make use of the inner arc of burning torch to heat coal dust so that full combustion of fuel, utilization rate of electrical is high, can significantly reduce the cost of plasma ignition.
Description
Technical field
The utility model belongs in plasma ignition rifle technical field more particularly to a kind of untransferable arc plasma powder of delivering coal
Burning torch.
Background technology
The sparking mode that thermal power plant uses at present mainly has big grease gun igniting increasing temperature and pressure, carries out boiler thermal-state punching
It washes, after boiler heating boosting to a certain extent, restarts coal pulverizer, liter is further heated up using big oil gun thermal energy firing coal-dust
Pressure.System is mainly made of coal pulverizer, big oil gun, fuel system, oil storage tank etc..The largely consumption combustion during ignition of the boiler
Oil, due to uncombusted fuel oil it is possible that pollution deduster, the measure generally taken first carries out precoating ash for sack cleaner, quiet
Electric precipitator does not put into operation, and as a result chimney breast pollutant can be caused largely to discharge, be unfavorable for environmental protection.
Plasma state is the 4th state of substance, in universe almost the substance of 99 ﹪ all in plasma state, plasma its
Temperature distribution range then the 1000000000 K superhigh temperature from the low temperature of 10K to nuclear fusion plasma and possesses a series of peculiar properties, makes
Plasma is in nano material production, new material synthesis, hot-working manufacture, smelting, probing, coal chemical industry, junk processing, material
Expect that the fields such as surface treatment, electronics, new energy, military affairs, aerospace obtain extensive use.
But since the steam coal matter of China's different sources is widely different, plasma ignition in practical applications, exists
Some shortcomings.Plasma ignition of the prior art often using be that the relatively low outer arc of plasma temperature burns, do not have
Favorably with the high temperature inner arc of degree up to ten thousand, making full use of for plasma arc is not only not carried out, moreover, in combustion, due to
Temperature is inadequate so that burning is insufficient, causes serious energy waste and the waste of fuel.
The content of the invention
To solve the above-mentioned problems, the utility model provides powder burning torch of delivering coal in a kind of untransferable arc plasma, institute
It states burning torch and is radially disposed with powder feeding pipe, interior insulation body, outer insulator, outer wall and gas wall, the gas from inside to outside
One end of wall is connected with the outer insulator, and the other end is connected with the outer wall, and the interior insulation body is fixed on the external insulation
In vivo, the powder feeding pipe after the inner cavity insertion of the interior insulation body with cathode taps by being threadedly coupled, inside and the sun of the outer wall
Cartridge is threadedly coupled；The through hole with the powder feeding pipe coaxial communication is equipped in the cathode taps, anode head.
Further, gas cavity is formed between the gas wall and the outer wall, the gas wall is adjacent to the end of the anode head
Portion is provided with circumferential equally distributed multiple gas circuits, and the gas circuit is communicated with the gas cavity.
Preferably, the outside of the gas wall is also welded with air inlet pipe, and the air inlet pipe is connected with the gas cavity.
Preferably, the middle part of the cathode taps has the first through hole consistent with the powder feeding bore.
Preferably, the middle part of the anode head has the second through hole that internal diameter is more than the first through hole.
Preferably, second through hole is radial by close to the cathode taps.
Further, be further fixedly arranged on ceramic ring between the outer insulator and the anode head, the ceramic ring with
There is gap between the cathode taps, anode head.
Preferably, the cathode taps and the material of the anode head are graphite.
Preferably, the material of the powder feeding pipe is potassium steel or medium managese steel.
Deliver coal in a kind of untransferable arc plasma of the utility model powder burning torch the advantages of be：
1. the utility model lights a fire to pulverized-coal fired boiler using internal powder conveying untransferable arc plasma, plasma is made full use of
The thermal energy and air velocity of body.
2. the burning torch reaction of the utility model is abundant, utilization rate of electrical is high, can significantly reduce plasma ignition into
This.
3. the utility model fills the coal dust of different characteristics by changing the structure of anode and cathode and the power of plasma
Divide heating.
4. the plasma ignition rifle of the utility model is simple in structure, easy to process, cost is relatively low.
5. the anode and cathode of the plasma ignition rifle of the utility model is replaced easily and cost is relatively low.
Description of the drawings
Fig. 1 is the schematic diagram of powder burning torch of delivering coal in the utility model untransferable arc plasma.
Fig. 2 is the side view of powder burning torch of delivering coal in the utility model untransferable arc plasma.
Fig. 3 is the usage state diagram of powder burning torch of delivering coal in the utility model untransferable arc plasma.
1- powder feeding pipes, 2- interior insulations body, 3- outer insulators, 4- outer walls, 5- gas wall, 6- ceramic rings, 7- cathode taps, 8- anodes
Head, 9- gas circuits, 10- air inlet pipe, 11- coal dusts, 12- plasma jets, 13- flame envelopes.
Specific embodiment
Below with reference to attached drawing, to delivering coal in the untransferable arc plasma of the utility model, powder burning torch carries out further
It is described in detail.
It delivers coal in the utility model untransferable arc plasma as shown in Figure 1 the schematic diagram of powder burning torch, the burning torch
Powder feeding pipe 1, interior insulation body 2, outer insulator 3, outer wall 4 and gas wall 5, the gas wall 5 are radially disposed with from inside to outside
One end be connected with the outer insulator 3, the other end is connected with the outer wall 4, and the interior insulation body 2 is fixed on the external insulation
In body 3, the powder feeding pipe 1 is threadedly coupled after being inserted by the inner cavity of the interior insulation body 2 with cathode taps 7, the inside of the outer wall 4
It is threadedly coupled with anode head 8.The through hole with 1 coaxial communication of powder feeding pipe is equipped in the cathode taps 7, anode head 8.The gas
Gas cavity is formed between wall 5 and the outer wall 4, the gas wall 5 has circumferential be uniformly distributed adjacent to the end set of the anode head 8
Multiple gas circuits 9, the gas circuit 9 communicates with the gas cavity.The outside of the gas wall 5 is also welded with air inlet pipe 10, described
Air inlet pipe 10 is connected with the gas cavity.The middle part of the cathode taps 7 has consistent with 1 internal diameter of powder feeding pipe first to lead to
Hole.The middle part of the anode head 8 has the second through hole that internal diameter is more than the first through hole, and second through hole is by close to described
Cathode taps 7 rise radial.Ceramic ring 6, the ceramics are further fixedly arranged between the outer insulator 3 and the anode head 8
There is gap between ring 6 and the cathode taps 7, anode head 8.
Embodiment according to the present utility model, 1 material of powder feeding pipe are potassium steel or medium managese steel, are had stronger wear-resisting
Property can bear the long-term erosive wear of coal dust 11；It is acted on, and will be negative
Electric current is transmitted among cathode taps 7.
Embodiment according to the present utility model, 2 material of interior insulation body is fiberglass or other insulation are heat-resisting
Material, effect is that reversal isolation is come, and can take out to replace cathode taps 7 at any time.3 material of outer insulator
For fiberglass or other heat-resisting materials that insulate, effect is isolation reversal.
Embodiment according to the present utility model, 4 material of outer wall are heat resisting steel, and effect is to load inner components.
5 material of gas wall is heat resisting steel, and effect is one gas circuit 9 of formation between outer wall 4.Gas circuit 9 is set for 5 end face of gas wall
Through hole, effect is delivery air, and secondary response is carried out with the carbon monoxide generated by anoxic.10 material of air inlet pipe and gas wall phase
Together, convenient for welding, effect is to be inputted to gun body inside input air, and by positive current among anode head 8.
It delivers coal in the utility model untransferable arc plasma as shown in Figure 2 the side view of powder burning torch, major embodiment
5 end of gas wall has circumferential multiple gas circuits 9 in the utility model.
It delivers coal the usage state diagram of powder burning torch, is using in the utility model untransferable arc plasma as shown in Figure 3
In the process, what is presented successively in plasma gun body is coal dust 11, plasma jet 12 and flame envelope 13.Wherein, coal dust 11 is original
Material is inputted among plasma arc, and melting or semi-molten state, then the oxonium ion with forming plasma are heated to through high-temperature area
It is reacted, is fully reacted, discharge heat, put combusting boiler；The coal dust for the high temperature incineration that plasma jet 12 sprays for gun body is used
In a combusting boiler；Flame envelope 13 is for air with the complete high temperature coal dust of unreacted or because the carbon monoxide of anoxic generation carries out reaction shape
Into flame, for the abundant burning to coal dust.
The specifically used step of powder burning torch of delivering coal in the untransferable arc plasma of the utility model is：
1) in operational process, air is first passed through in powder feeding pipe 1, then air is passed through in air inlet pipe 10.
2) plasma power supply is started so that high-temperature plasma arc is generated between cathode taps 7 and anode head 8, air is through ionization
After form plasma, temperature Rate drastically raises, and DIE Temperature reaches as high as 10000~15000 DEG C, and air velocity is reachable
Ten times of 3500m/s, almost velocity of sound.Since air velocity is high, internal heat is taken away in time, avoids anode and cathode in moment
Scaling loss, but after longtime running, anode and cathode still can scaling loss.
3) coal dust is inputted by powder feeding pipe 1, coal dust is made to be passed through plasma core region, temperature reach 10000 DEG C with
On, air velocity reaches ten times of velocity of sound, and coal dust heats acceleration under plasma, is finally heated to melting or semi-molten shape
State is flown away with the speed of velocity of sound and forms plasma jet 12.
4) coal dust 11 is reached velocity of sound level, 0. more than zero is only stopped in high-temperature plasma arc region due to very high speed
Second, this period, coal dust also had little time fully to react with air.
5) just reacted with the oxygen in air when coal dust 11 forms plasma jet and discharge heat, with this by pot
Stove is lighted.
The utility model fills the coal dust 11 of different characteristics by changing the structure of anode and cathode and the power of plasma
Divide heating.Due to plasma core extreme temperatures, although amount of heat can be taken away by high-speed flow, fraction plasma
Or scaling loss can be carried out to anode and cathode, the service life of anode and cathode can only maintain once to light a fire.Although being used only once, its cost
Relatively low, the present invention is far above the loss of electrode for the economic benefit that plasma ignition is brought.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features contact directly or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
It is fisrt feature immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It is combined in an appropriate manner in a or multiple embodiments or example.In addition, without conflicting with each other, the technology of this field
Different embodiments described in this specification or example and different embodiments or exemplary feature can be combined by personnel
And combination.
Claims (10)
1. a kind of powder burning torch of delivering coal in untransferable arc plasma, which is characterized in that the burning torch radially from inside to outside according to
It is secondary to be provided with powder feeding pipe, interior insulation body, outer insulator, outer wall and gas wall, one end and the external insulation of the gas wall
Body connects, and the other end is connected with the outer wall, and the interior insulation body is fixed in the outer insulator,
The powder feeding pipe after the inner cavity insertion of the interior insulation body with cathode taps by being threadedly coupled, the inside of the outer wall and anode
Head thread connects；The through hole with the powder feeding pipe coaxial communication is equipped in the cathode taps, anode head.
2. powder burning torch of delivering coal in untransferable arc plasma according to claim 1, which is characterized in that the gas wall and institute
It states and forms gas cavity between outer wall,
The gas wall has circumferential equally distributed multiple gas circuits, the gas circuit and the gas adjacent to the end set of the anode head
Body cavity communicates.
3. powder burning torch of delivering coal in untransferable arc plasma according to claim 2, which is characterized in that outside the gas wall
Side is also welded with air inlet pipe,
The air inlet pipe is connected with the gas cavity.
4. powder burning torch of delivering coal in untransferable arc plasma according to claim 1, which is characterized in that the cathode taps
Middle part has the first through hole consistent with the powder feeding bore.
5. powder burning torch of delivering coal in untransferable arc plasma according to claim 4, which is characterized in that the anode head
Middle part has the second through hole that internal diameter is more than the first through hole.
6. powder burning torch of delivering coal in untransferable arc plasma according to claim 5, which is characterized in that second through hole
It is radial by close to the cathode taps.
7. powder burning torch of delivering coal in untransferable arc plasma according to claim 1, which is characterized in that the outer insulator
Ceramic ring is further fixedly arranged between the anode head, there is gap between the ceramic ring and the cathode taps, anode head.
8. powder burning torch of delivering coal in untransferable arc plasma according to claim 1, which is characterized in that the cathode taps
Material is graphite.
9. powder burning torch of delivering coal in untransferable arc plasma according to claim 1, which is characterized in that the anode head
Material is graphite.
10. powder burning torch of delivering coal in untransferable arc plasma according to claim 1, which is characterized in that the powder feeding pipe
Material for potassium steel or medium managese steel, there is wearability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356519.9U CN207455576U (en) | 2017-10-20 | 2017-10-20 | It delivers coal in untransferable arc plasma powder burning torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356519.9U CN207455576U (en) | 2017-10-20 | 2017-10-20 | It delivers coal in untransferable arc plasma powder burning torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207455576U true CN207455576U (en) | 2018-06-05 |
Family
ID=62280861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721356519.9U Expired - Fee Related CN207455576U (en) | 2017-10-20 | 2017-10-20 | It delivers coal in untransferable arc plasma powder burning torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207455576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827173A (en) * | 2019-01-30 | 2019-05-31 | 曲大伟 | A kind of built-in expansion plasma thermal cracking igniting and jet stream coal powder burner |
-
2017
- 2017-10-20 CN CN201721356519.9U patent/CN207455576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827173A (en) * | 2019-01-30 | 2019-05-31 | 曲大伟 | A kind of built-in expansion plasma thermal cracking igniting and jet stream coal powder burner |
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| GR01 | Patent grant | ||
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| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20180605 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20180605 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 |