CN207622063U - Based on the igniter and metal fiber burner for premixing vertical tipburn boiler entirely - Google Patents
Based on the igniter and metal fiber burner for premixing vertical tipburn boiler entirely Download PDFInfo
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- CN207622063U CN207622063U CN201721816893.2U CN201721816893U CN207622063U CN 207622063 U CN207622063 U CN 207622063U CN 201721816893 U CN201721816893 U CN 201721816893U CN 207622063 U CN207622063 U CN 207622063U
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- tipburn
- vertical
- igniter
- combustion
- gas
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Abstract
The utility model is related to a kind of based on the igniter and metal fiber burner that premix vertical tipburn boiler entirely, the igniter includes fire rod and fiery check bar, the front end of the fire rod and fiery check bar is located at the combustion zone of the outer and close combustion head of metal fiber burner, rear end is located in metal fiber burner, the fire rod is externally provided with first sleeve, there is gap to form between the first sleeve and fire rod and draw blast tube, combustion gas is introduced into thereabout to form ignition flame through drawing blast tube；The fire check bar is externally provided with the second casing, between second casing and fiery check bar there is gap to form burning gallery, second casing front end is provided with the earth polar being connected to burning gallery, and the earth polar is bent to fire rod direction so that earth polar can be contacted with ignition flame.The utility model solves the problems, such as to premix vertical tipburn boiler entirely in condensation water-soaked fireproof heat insulating cotton and air and the non-uniform more difficult formation flame of combustion gas mixing.
Description
Technical field
The utility model is related to technical field of combustion equipment, and in particular to a kind of based on the point for premixing vertical tipburn boiler entirely
Fiery device and and metal fiber burner.
Background technology
Standard metal fiber surface burns head and is divided into blind area and combustion zone, and combustion zone outer surface is laid with metallic fiber silk screen, point
Fiery device is disposed adjacent to outside the metallic fiber silk screen of combustion zone, and flame is radially distributed in the outer surface of combustion zone.Full premix is vertical
Formula tipburn boiler refers to that burner is mounted at the top of boiler, and metallic fiber surface is burnt upside down, one kind of flame radial combustion
Chamber structure, if burning head using standard metal fiber surface for the boiler adds conventional ignition device, as shown in Figure 1, due to
The flame of the special construction of burner hearth, generation of burning can be reflected to furnace roof, and fuel gas buring will produce a large amount of vapor, and vapor exists
It is condensed on fireproof heat insulating cotton, forms condensed water, soaked the igniter being wrapped in fireproof heat insulating cotton and fire rod and fire are examined
Stick short circuit is leaked electricity, and fire rod generates pilot spark with moist fireproof heat insulating cotton when receiving igniting electric signal rather than referring to
Fixed dew sets end and generates pilot spark with earth polar, and can not ignite main flame.Furthermore standard metal fiber surface burns the igniting dress of head
The mode using single igniting is set, fire rod directly burns standard metal fiber surface the gaseous mixture of head combustion zone outer surface
Body discharge, directly form main flame, due to standard metal fiber surface burn head combustion zone exterior space it is relatively large, combustion gas and
Air is non-uniform in mixing, it is more difficult to form flame.
Utility model content
Water-soaked fireproof heat insulating cotton and air and combustion gas mixing are being condensed in order to solve to premix vertical tipburn boiler entirely not
In the case of uniform the problem of more difficult formation flame, the present invention provides a kind of igniter and metal fiber burner, the points
The characteristics of fiery device igniting is first to form small ignition flame in burning head lateral surface, under the igniting of ignition flame, is easily formed
Main flame.
On the one hand the utility model provides a kind of based on the igniter for premixing vertical tipburn boiler entirely, including fire rod
With fiery check bar, the front end of the fire rod and fiery check bar is located at the combustion zone of the outer and close combustion head of metal fiber burner, after
End is located in metal fiber burner,
The fire rod is externally provided with first sleeve, between the first sleeve and fire rod there is gap to form the gas that ignites
Channel, combustion gas are introduced into thereabout to form ignition flame through drawing blast tube；
The fire check bar is externally provided with the second casing, between second casing and fiery check bar there is gap to form burning logical
Road, second casing front end are provided with the earth polar being connected to burning gallery, and the earth polar is bent to fire rod direction so that ground
Pole can be contacted with ignition flame.
Further, the front end of the fire rod is located in first sleeve.
Further, the forward end of the fire rod forms the flange that oriented first sleeve direction extends, the flange
Have gap so that the blast tube that draws is interlinked to the outside with metal fiber burner between first sleeve.
Further, the front end of the fiery check bar is stretched out except the second casing.
Further, the front end of the first sleeve and the second casing extends to the endface of combustion zone rear end, and rear end is prolonged
It extends in metal fiber burner.
Further, the rear end of the first sleeve is provided with the fuel gas inlet communicated with blast tube.
Further, air-fuel mixer entrance, the gaseous mixture of air and combustion gas are provided on the metal fiber burner
Body can enter inside combustion head through air-fuel mixer entrance and diffuse to combustion zone outer surface, the generation under the igniting of ignition flame
Main flame.
Further, the fuel gas inlet is connected to the gas admission line that ignites, and is provided on the gas admission line that ignites
Draw the gas valve of blast tube for controlling gas disengaging of igniting；The air-fuel mixer entrance connects with air-fuel mixture admission line
It is logical, the mixing air valve that combustion head is passed in and out for controlling air-fuel mixture is provided on the air-fuel mixture admission line.
The utility model on the other hand additionally provide it is a kind of based on the metal fiber burner for premixing vertical tipburn boiler entirely,
Including combustion head and above-mentioned igniter.
It is cold to solve vertical tipburn boiler by the way that casing is arranged in traditional fire rod and the external of fiery check bar for the utility model
Condensate is agglomerated outside fire rod causes fire rod short circuit can not be the problem of stick end of lighting a fire forms pilot spark.Meanwhile first
Burning torch is collectively formed with fire rod in casing, and Some gases are first advanced into outside combustion zone through feed channel of igniting, and forms ignition flame,
Then it is ignited by ignition flame the mixed gas of large quantity of air and combustion gas, forms main flame.The utility model is ignited using secondary
Mode replaces traditional primary mode of igniting, and overcomes the defect that main flame is difficult to set up in traditional sparking mode.
Description of the drawings
Fig. 1 is based on the structural schematic diagram for premixing the combustion head in vertical tipburn boiler using conventional ignition device entirely；
Fig. 2 is the structural schematic diagram based on the igniter for premixing vertical tipburn boiler entirely of the utility model；
Fig. 3 is that the structure based on the combustion head for premixing the igniter in vertical tipburn boiler using the utility model entirely is shown
It is intended to；
Fig. 4 is the right view of Fig. 3.
Reference sign：1-fire rod；11-flanges；2-fiery check bars；3-earth polars；4-first sleeves；5-the second
Casing；6-draw blast tube；7-fuel gas inlets；8-fireproof heat insulating cottons；9-combustion heads；91-burn head blind area；92-burnings
Area；10-ignition flames；20-burner hearths.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
Embodiment 1
As shown in Fig. 2, in conjunction with Fig. 3 and Fig. 4, it is a kind of based on the igniter for premixing vertical tipburn boiler entirely, including igniting
The front end of stick 1 and fiery check bar 2, the fire rod 1 and fiery check bar 2 is located at outside metal fiber burner and close to the combustion of combustion head 9
Area 92 is burnt, rear end is located in metal fiber burner,
The fire rod 1 is externally provided with first sleeve 4, and there is gap to form between the first sleeve 4 and fire rod 1 and draw
Blast tube 6, combustion gas are introduced into combustion zone 92 nearby to form ignition flame 10 through drawing blast tube 6；
The fire check bar 2 is externally provided with the second casing 5, between second casing 5 and fiery check bar 2 there is gap to form combustion
Burn through road, 5 front end of the second casing are provided with the earth polar 3 being connected to burning gallery, and the earth polar 3 is curved to 1 direction of fire rod
Song is so that earth polar 3 can be contacted with ignition flame 10.
Specifically, 9 inner hollow of the combustion head, front end is combustion zone 92, and rear end is to burn head blind area 91, the burning head
By flanged joint, the surface of the combustion zone 92 is equipped with multiple through-holes, the combustion zone for blind area 91 and the premixer of burner
Metallic fiber silk screen is equipped with outside 92 surface.Air and the mixed gas of combustion gas are uniformly saturating in Metal Fibre Combustion layer
It crosses so that burn the sufficiently stable, uniformity of temperature profile of head burning, exist without localized hyperthermia, therefore inhibit the generation of NOx.It passes
The igniter of system only includes fire rod 1 and fiery check bar 2, as shown in Figure 1, one end of fire rod 1 and fiery check bar 2 is placed on burning
Outside device, the metallic fiber layer surface close to combustion zone 92, the other end is located at across flange in premixer, the wall of the side of premixer
The mixed gas of upper setting air-fuel mixture entrance, air and combustion gas enters through air-fuel mixture entrance 6 inside combustion head 9, then
Enter combustion zone 92 from head blind area 91 is burnt, diffuses to 92 outer surface of combustion zone from the surface through-hole of combustion zone 92, fire rod 1 is lighted a fire
Afterwards, it ignites air-fuel mixture, forms flame.For vertical tipburn boiler, metal fiber burner is mounted at the top of boiler,
Combustion head 9 downward, burn and be enclosed with fireproof heat insulating cotton 8 outside head blind area 91 by flame radial combustion in burner hearth 20.Vertical tipburn pot
If stove is using traditional igniter, as shown in Figure 1, there are following two disadvantages：1, the flame that igniter generates can be to
Furnace roof reflects, and fuel gas buring will produce a large amount of vapor, and vapor condenses on fireproof heat insulating cotton 8, forms condensed water, soaks
The igniter being wrapped in fireproof heat insulating cotton 8 makes the 2 short circuit electric leakage of fire rod 1 and fiery check bar, fire rod 1 receive igniting
Pilot spark is generated with moist fireproof heat insulating cotton 8 rather than set end in specified dew and generate igniting fire with earth polar 3 when electric signal
Flower, can not ignite main flame；2, it is once to ignite the characteristics of this igniter, due to the sky entered from air-fuel mixer entrance
Gas and the air-fuel mixture amount of combustion gas are larger, and 92 external space of combustion zone is relatively large, such as mix it is uneven, it is difficult to directly formed master
Flame.In consideration of it, the utility model is improved on the basis of original design, by 2 peripheral hardware of fire rod 1 and fiery check bar
Set first sleeve 4 and the second casing 5, two casings can protect fire rod 1 and fiery check bar 2 not to be condensed water-soaked, avoid short
The problem of road is leaked electricity.In addition, can also form blast tube between the first sleeve 4 and fire rod 1, this blast tube can incite somebody to action
Some gases introduce 92 outer surface of combustion zone in advance, this Some gases can form ignition flame 10 after fire rod 1 is lighted a fire.This practicality
Novel metal web is located at 92 outer surface of combustion zone, therefore earth polar 3, after flame combustion, ground are arranged on the second casing 5
Access is formed between pole 3 and fiery check bar 2.In order to allow earth polar 3 preferably to experience ignition flame 10, need earth polar 3 is curved
Bent certain angle so that 1 front end of fire rod is face-to-face with earth polar 3, and the bending shape in earth polar 3 does not limit, and can bend once,
It can also bend twice, its front end can tilt, is vertical or parallel with fire rod 1 with fire rod 1 after bending.
The fire rod 1 of the utility model, fiery check bar 2, first sleeve 4 and the second casing 5 are that metal is made, and described first
The preferred ordinary carbon steel of material of casing 4 and the second casing 5, or other metals, carbon steel cannot bear high temperature, therefore described
The front end of first sleeve 4 and the second casing 5 extends to the endface of 92 rear end of combustion zone, i.e. combustion zone 92 and burning head blind area 91
Intersection cannot enter outside combustion zone 92, and rear end extends in metal fiber burner.The material of the fire rod 1 and fiery check bar 2
Material preferably heat safe nichrome.Fire rod 1 forms electric spark with the sparking of first sleeve 4, therefore lights a fire in the utility model
Stick 1 and first sleeve 4 form lighter.In the present invention, ceramics are also enclosed with outside the fire rod 1 and fiery check bar 2
Material, ceramic material primarily serve the effect of insulation, because 1 ignition point voltage of fire rod is higher, such as make without ceramic material
It is opened with the isolation of first sleeve made of metal material 4, then fire rod 1 can discharge to first sleeve 4, the igniting that will not be specified again
It lights a fire 1 end of stick.When fiery check bar 2 detects flame, weak current can be also formed inside it, do not have to ceramic material and second such as
Casing 5 separates, and it will cause short circuits, can not detect the presence of flame.
The length of the fire rod 1 is less than the length of first sleeve 4, and its front end is located in first sleeve 4.Namely
It says, the first sleeve 4 covers the front end of fire rod 1, and 1 front end of fire rod is avoided to be exposed at outside first sleeve 4.Such as preceding institute
It states, since the front end of the first sleeve 4 ends in combustion zone 92 and burns the intersection of head blind area 91, and the front end of fire rod 1
In first sleeve 4, therefore the front end of fire rod 1 is also switched off in combustion zone 92 and burns the intersection of head blind area 91.Such as fruit dot
The front end of lighted torch 1 is stretched out outside first sleeve 4, i.e., if 1 front end of fire rod reaches combustion zone 92, is gathered on fire rod 1
Condensed water can be along fire rod 1 toward flowing down, and short circuit can be formed by flowing on the fire rod 1 that dew is set, would not be at the tip of fire rod 1
Igniting, but can leak electricity, ignition flame 10 cannot be thus formed, loss of ignition is caused.In a preferred embodiment, described
1 front end of fire rod is flushed with 4 front end of first sleeve.
In another embodiment, the forward end of the fire rod 1 forms the convex of 4 direction of oriented first sleeve extension
Edge 11 has gap so that the blast tube 6 that draws is interlinked to the outside with burner between the flange 11 and first sleeve 4.It is described
Flange 11 can all be extended to 4 direction of first sleeve with both sides, can also there was only the extension of 4 direction of a lateral first sleeve.It is described convex
The shape of edge 11 does not limit, if both sides all extend to 4 direction of first sleeve, flange 11 can be cylinder, or circle
Platform shape can also be other shapes, and the flange 11 and the forward end of fire rod 1 preferably seamlessly transit so that the gas that ignites is logical
Fuel gas flow in road 6 is more unimpeded.After the flange 11 that the end set of fire rod 1 extends to 4 direction of first sleeve, still
It is so flushed with the front end of first sleeve 4, the flange 11 cannot will draw blast tube 6 and block, by the way that flange 11 is arranged so that point
1 end of lighted torch from first sleeve 4 closer to, it is easier to form pilot spark.
The length of the fire check bar 2 is more than the length of the second casing 5, and its front end is stretched out except the second casing 5.So
It is arranged so that the front end of fiery check bar 2 can be touched with ignition flame 10, to generate firing information.
The rear end of the first sleeve 4 is provided with the fuel gas inlet 7 communicated with blast tube, the metal fiber burner
On be provided with air-fuel mixer entrance, the mixed gas of air and combustion gas can enter inside combustion head 9 through air-fuel mixer entrance
And 92 outer surface of combustion zone is diffused to, main flame is generated under the igniting of ignition flame 10.
Specifically, the rear end of the first sleeve 4 is provided with and the fuel gas inlet 7 that draws blast tube 6 and communicate, the sky
Combustion mixer entrance is set to the side of premixer.A small amount of combustion gas enters from fuel gas inlet 7 draws blast tube 6, is first advanced into combustion
Burn 92 outer surface of area.Large quantity of air and the mixed gas of combustion gas enter from air-fuel mixer entrance inside combustion head 9, blind through burning
Area 91 diffuses to combustion zone 92, and main flame is generated under the igniting of ignition flame 10.Therefore the utility model is characterized in that secondary
It ignites, first generates ignition flame 10, ignite large quantity of air and combustion gas by ignition flame 10, generate main flame.
The fuel gas inlet 7 is connected to the gas admission line that ignites, and is provided on the gas admission line that ignites for controlling
The gas that ignites passes in and out the gas valve for drawing blast tube 6；The air-fuel mixer entrance is connected to air-fuel mixture admission line, described
The mixing air valve that combustion head 9 is passed in and out for controlling air-fuel mixture is provided on air-fuel mixture admission line.The igniting dress
It further includes controller to set, and the controller is electrically connected with gas valve, mixing air valve and fiery check bar 2.
When work, start burner, is opened by controller control gas valve, a small amount of combustion gas is from fuel gas inlet 7 through the gas that ignites
Channel 6 is first advanced into combustion zone 92, ignites under the action of the electric spark formed after fire rod 1 is struck sparks with the first outer tube, shape
At ignition flame 10.Ignition flame 10 burns the earth polar 3, forms access between earth polar 3 and fiery check bar 2, fiery check bar 2 is formed instead
Supply current simultaneously passes to controller, monitoring control devices to ignition flame 10 establish after, control mixing air valve open, large quantity of air and
The mixed gas of combustion gas enters through air-fuel mixer import inside combustion head 9, combustion zone 92 is diffused into through burning head blind area 91, in point
Under the igniting of flame 10, main flame is formed, ignition procedure is completed.
On the one hand, first outer tube of the utility model and the second housing protection of pipe fire rod 1 and fiery check bar 2 be not cold
Condensate influences, and solves vertical tipburn boiler blow-down water and is agglomerated outside fire rod 1 and causes 1 short circuit of fire rod can not be in fire rod 1
End forms the problem of pilot spark.On the other hand, the sparking mode of the igniter of the utility model be by fire rod 1 with
First sleeve 4 outside fire rod 1 is struck sparks, and drawing between first sleeve 4 and fire rod 1 is connected with combustion gas in blast tube 6, combustion gas
It is easy to be ignited by electric spark.And traditional sparking mode is directly to establish flame in 92 outer surface of combustion zone, outside combustion zone 92
Space is than drawing big more of blast tube 6, if air and combustion gas mixing are uneven, the more difficult foundation of flame.The utility model overcomes
The defect of conventional ignition device makes main flame foundation be relatively easy to.
Embodiment 2
It is a kind of based on the metal fiber burner for premixing vertical tipburn boiler entirely, including combustion head 9, igniting as described above
Device, wind turbine and premixer, 9 inner hollow of the combustion head are divided into and burn head blind area 91 and 92 two parts of combustion zone, the combustion
The surface for burning area 92 is uniformly arranged multiple through-holes, and metallic fiber silk screen is equipped with outside the surface of the combustion zone 92；The burning head
One end of blind area 91 is connected by the front end of flange and premixer；The rear end of the premixer and the air outlet of wind turbine connect；Institute
The rear end for stating fire rod 1 and fiery check bar 2 is located at premixer front end, and front end is located at across flange outside burner, close to combustion zone 92.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of based on the igniter for premixing vertical tipburn boiler entirely, including fire rod and fiery check bar, the fire rod and fire
The front end of check bar is located at the combustion zone of the outer and close combustion head of metal fiber burner, and rear end is located in metal fiber burner,
It is characterized in that,
The fire rod is externally provided with first sleeve, there is gap to form the gas that ignites logical between the first sleeve and fire rod
Road draws blast tube and is introduced into thereabout to form ignition flame described in combustion gas warp；
The fire check bar is externally provided with the second casing, between second casing and fiery check bar there is gap to form burning gallery,
Second casing front end is provided with the earth polar being connected to burning gallery, and the earth polar is bent to fire rod direction so that earth polar can
It is contacted with ignition flame.
2. according to claim 1 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that the igniting
The front end of stick is located in first sleeve.
3. according to claim 2 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that the igniting
The forward end of stick forms the flange that oriented first sleeve direction extends, there is gap between the flange and first sleeve so that
The blast tube that draws is interlinked to the outside with metal fiber burner.
4. according to claim 2 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that the fire inspection
The front end of stick is stretched out except the second casing.
5. according to claim 4 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that described first
The front end of casing and the second casing extends to the endface of combustion zone rear end, and rear end extends in metal fiber burner.
6. according to claim 1-5 any one of them based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that
The rear end of the first sleeve is provided with the fuel gas inlet communicated with blast tube.
7. according to claim 6 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that the metal
It is provided with air-fuel mixer entrance on fiber burner, the mixed gas of air and combustion gas can enter combustion through air-fuel mixer entrance
It burns inside head and diffuses to combustion zone outer surface, main flame is generated under the igniting of ignition flame.
8. according to claim 7 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that the combustion gas
Entrance is connected to the gas admission line that ignites, and is provided on the gas admission line that ignites logical for controlling gas disengaging of the igniting gas that ignites
The gas valve in road；The air-fuel mixer entrance is connected to air-fuel mixture admission line, the air-fuel mixture admission line
On be provided with for control air-fuel mixture pass in and out combustion head mixing air valve.
9. according to claim 8 based on the igniter for premixing vertical tipburn boiler entirely, which is characterized in that further include control
Device processed, the controller are electrically connected with gas valve, mixing air valve and fiery check bar.
10. a kind of based on the metal fiber burner for premixing vertical tipburn boiler entirely, which is characterized in that including combustion head and power
Profit requires 1-9 any one of them igniters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816893.2U CN207622063U (en) | 2017-12-22 | 2017-12-22 | Based on the igniter and metal fiber burner for premixing vertical tipburn boiler entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816893.2U CN207622063U (en) | 2017-12-22 | 2017-12-22 | Based on the igniter and metal fiber burner for premixing vertical tipburn boiler entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207622063U true CN207622063U (en) | 2018-07-17 |
Family
ID=62820404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721816893.2U Active CN207622063U (en) | 2017-12-22 | 2017-12-22 | Based on the igniter and metal fiber burner for premixing vertical tipburn boiler entirely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207622063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566235A (en) * | 2021-08-06 | 2021-10-29 | 山东多乐新能源科技有限责任公司 | Ignition device of full-premixing gas boiler |
-
2017
- 2017-12-22 CN CN201721816893.2U patent/CN207622063U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566235A (en) * | 2021-08-06 | 2021-10-29 | 山东多乐新能源科技有限责任公司 | Ignition device of full-premixing gas boiler |
| CN113566235B (en) * | 2021-08-06 | 2022-10-14 | 山东多乐新能源科技有限责任公司 | Ignition device of full-premixing gas boiler |
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Effective date of registration: 20220411 Address after: 100034 No.2, Dahong Luochang street, Xicheng District, Beijing Patentee after: BEIJING ENERGY-SAVING TECHNOLOGY MONITORING CENTER Address before: 100032 No. 2, C, Dahong Luochang street, Xicheng District, Beijing Patentee before: BEIJING JINTAI MINGDA ENERGY SAVING TECHNOLOGY Co.,Ltd. |