CN207815318U - A kind of low nitrogen burner of high-efficiency internal circulation - Google Patents
A kind of low nitrogen burner of high-efficiency internal circulation Download PDFInfo
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- CN207815318U CN207815318U CN201721924568.8U CN201721924568U CN207815318U CN 207815318 U CN207815318 U CN 207815318U CN 201721924568 U CN201721924568 U CN 201721924568U CN 207815318 U CN207815318 U CN 207815318U
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- cylinder
- eddy flow
- natural gas
- combustion air
- fan
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 88
- 238000002485 combustion reaction Methods 0.000 claims abstract description 66
- 239000003345 natural gas Substances 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 24
- 239000003546 flue gas Substances 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000000446 fuel Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model is related to a kind of low nitrogen burners of high-efficiency internal circulation, including cylinder, natural gas passage mechanism from natural gas to cartridge outlet, combustion air passage mechanism, eddy flow tray, wind deflector for being passed through combustion air to cartridge outlet to be mixed and burned with natural gas for spraying；The utility model additionally uses timer, ventilation hole and fan, when in timer preset first time to when central control module control the electrically operated valve and opened with fan and be blown into combustion air into cylinder, when in timer preset second time to when central control module control the electrically operated valve and closed with fan, stop being blown into combustion air into cylinder.The first time can determine with the second time according to specific requirements.Can cooling periodically be blowed to combustion zone by timer and fan cooperation so that the temperature of combustion zone will not be excessively high, is further reduced the discharge of NOx.
Description
Technical field
The utility model is related to burner arts, more particularly to the low nitrogen burner of a kind of high-efficiency internal circulation.
Background technology
NOx is a kind of important component of atmosphere pollution, and one of an important factor for initiation haze and acid rain.Mesh
The preceding continuous improvement with environmental requirement, it is also increasingly stringent for the limitation of NOx discharge,
Neat gas burner is can to reduce NOx discharge using natural gas as fuel, thus neat gas burner obtained in recent years
To greatly developing.Neat gas burner has many advantages, such as clean and effective, safe and simple.
Specifically, neat gas burner is to reach chemical energy transformation by the way that natural gas and air are carried out mixing and burning
For the purpose of thermal energy.It is designed by rational burner structure, natural gas and air can be made to be uniformly mixed, ensureing efficiently combustion
On the basis of burning, the generation of local high temperature zone is reduced, to inhibit the generation of NOx in combustion process, reaches the discharge of low NOx
Amount.Such as patent CN105135432A adjusts combustion zone fuel and sky using the structure type of inside and outside two layers of fuel gun
The distribution of gas reduces the formation of high-temperature area, reduces the discharge capacity of NOx.
The mixing of fuel and air before into combustion zone combustion efficiency is influenced it is very big, however into combustion zone
Before, the mixing of natural gas and air that fuel gun sprays is all very limited over time and space, this can cause this region natural
The mixed effect of gas and air is deteriorated, and then concentration in combustion zone, temperature distribution is non-uniform, and the production quantity of NOx is made to increase.
Therefore, the NOx emission of neat gas burner is still greatly improved space, also much reduces pollutant emissions
Technological means has to be developed.There is still a need for design, more rationally effective ultra-low NOx emission burner structure form effectively drops
Low burn is burnt and control pollutant emission.
Invention content
In view of this, the purpose of this utility model is to provide a kind of low nitrogen burner of high-efficiency internal circulation, it is provided with cigarette
The components such as circulation port and wind deflector in gas, wherein wind deflector enable to the flow velocity of an interior air-flow to obtain very big amplitude with eddy flow tray
Promotion so that the shape and range of burner downstream flame are effectively controlled, to reduce the effect of NOx emission, simultaneously
Further include there are the components such as timer and fan, cooling periodically can be blowed to combustion zone by timer and fan cooperation,
So that the temperature of combustion zone will not be excessively high, it is further reduced the discharge of NOx.
The utility model is realized using following scheme：A kind of low nitrogen burner of high-efficiency internal circulation, including cylinder, be used for
The natural gas passage mechanism of natural gas is sprayed to cartridge outlet, for being passed through combustion air to cartridge outlet to be mixed with natural gas
Combustion air passage mechanism, eddy flow tray, the wind deflector of burning；
The cylinder includes ontology, and the exit end of the ontology is equipped with aditus laryngis, and the ontology is connected with the wall portion of aditus laryngis；
The wall portion of the aditus laryngis opens up multiple interior circulation ports；
The eddy flow tray is arranged in the ontology of cylinder and coaxial with the cylinder, the eddy flow tray include eddy flow inner ring,
Eddy flow outer shroud and the swirl vane being set between eddy flow inner ring and eddy flow outer shroud；
The wind deflector is funnel type, including big opening and small opening, the wall of the big opening and the ontology
Portion is connected, and the small opening is connected with the eddy flow outer shroud of the eddy flow tray, the combustion air in cylinder to be all oriented to
Eddy flow tray；
The peripheral wall of the ontology is first-class to be spaced apart and sets there are four ventilation hole, and electrically operated valve is both provided on each ventilation hole,
Each ventilation hole is respectively connected with the ventilation shaft outside cylinder, and fan is provided in the ventilation shaft, the fan
Air-out direction is frontage and airiness hole, to be blown into combustion air into cylinder；
Further include central control module, timer, the timer, electrically operated valve and fan control mould with the center
Block is electrical connected, with so that when in timer preset first time to when central control module control the motor-driven valve
Door is opened with fan and is blown into combustion air into cylinder, when in timer preset second time to when central control module
It controls the electrically operated valve to close with fan, stops being blown into combustion air into cylinder.
Due to opening up circulation port in flue gas at aditus laryngis, pressure outside hole is more than pressure in hole, so as to by external cigarette
In gas volume sucking cylinder, realizes that flue gas enters combustion zone, reduce burning local temperature, realize bias combustion.It uses and leads simultaneously
Aerofoil enables to the flow velocity of an interior air-flow to obtain pole significantly to be promoted with eddy flow tray so that the shape of burner downstream flame
It is effectively controlled with range, to reduce the effect of NOx emission.In addition, the utility model use timer, ventilation hole with
And fan, when in timer preset first time to when central control module control the electrically operated valve and opened with fan
Combustion air is blown into cylinder, when in timer preset second time to when central control module control it is described electronic
Valve is closed with fan, stops being blown into combustion air into cylinder.The first time can be according to specific need with the second time
It asks to determine.Can cooling periodically be blowed to combustion zone by timer and fan cooperation so that the temperature of combustion zone will not
It is excessively high, it is further reduced the discharge of NOx.
Further, the natural gas passage mechanism includes central tube and multiple peripheral conduits, and the central tube is worn
In eddy flow inner ring；The central tube includes the natural air gun in center, natural gas gas chamber and central-injection hole, natural gas gas chamber
Set on one end of the close aditus laryngis of the natural air gun in center, central-injection hole is connected to via natural gas gas chamber with the natural air gun in center；
The centerline parallel of the multiple peripheral conduits and cylinder is simultaneously disposed around on the inside of the internal perisporium of cylinder, the front end of the peripheral conduits
Across cylinder, and the spray-hole of peripheral conduits is located at the outside of cylinder, and close to aditus laryngis, the peripheral conduits are located at inner barrel
Partially pass through the wind deflector.
Wherein, peripheral conduits are equipped with one end of spray-hole towards the inner inclination of cylinder, so that natural gas is sprayed to cylinder, with
It quickly, is uniformly mixed with natural gas.
Further, the natural gas passage mechanism further includes multiple L-shaped branch pipes, and the L-shaped branch pipe includes being mutually perpendicular to
The centerline parallel of the tube axial and radial tubes of connection, tube axial and cylinder is simultaneously disposed around on the inside of the internal perisporium of cylinder, radial tubes
Inner barrel is stretched into via circulation port in flue gas, and the projection in an axial direction of radial tubes is at least partially disposed at the projection model of eddy flow tray
In enclosing, one end for stretching into inner barrel of radial tubes has radial injection hole, stretches into the periphery of the radial tubes of cylinder equipped with multiple
Circumferential spray-hole.
The utility model uses natural gas passage mechanism and combustion air passage mechanism, portion of natural gas that can pass through central tube
Road is injected into center, while the radial injection hole of L-shaped branch pipe can also inject natural gas above eddy flow tray, and portion of natural gas is logical
Cross peripheral conduits to be sprayed, be emitted directly toward the combustion air of outer layer, ensure at burner outlet VELOCITY DISTRIBUTION rationally, fuel gas and
Combustion air blending is uniform, and flue gas rationally controls combustion zone via combustion zone is recycled into flue gas after burning, to protect
Demonstrate,prove the stability of burning and good NOx abatement effect.
Further, the L-shaped branch pipe is distributed at equal intervals around cylinder, and identical quantity is equipped between adjacent L-shaped branch pipe
Peripheral conduits, the extended lines of the radial tubes of each L-shaped branch pipe passes through the axis of cylinder.
Further, the wall portion of the aditus laryngis is inside contracted compared to ontology towards cylinder.
Further, the cylinder further includes guide plate, and the guide plate is connected to the outer rim of the wall portion of aditus laryngis, and towards cylinder
The expansion of the outer inclination of body.
The wall portion extended out so that aditus laryngis is in bell mouth shape, is inhaled towards cylinder curls inward after partial fume discharge, a part is via flue gas
Interior circulation port enters the transition combustion zone in cylinder, and a part is directed to peripheral conduits by guide plate, into peripheral combustion zone.
Therefore, guide plate can aid in form cycle in flue gas with circulation port cooperation in flue gas, effectively reduce the model of local high temperature zone
It encloses, inhibits the generation of NOx.
Further, ranging from 20 ° -45 ° of the angle of inclination of the guide plate.
Further, the number of circulation port is 8-12 in the flue gas, and the number of the peripheral conduits is 16-24.
Compared with prior art, the utility model is more than due to opening up circulation port in flue gas, the pressure outside hole at aditus laryngis
Pressure in hole realizes that flue gas enters combustion zone so as to roll up external flue gas in sucking cylinder, reduces burning part temperature
Degree realizes bias combustion.It enables to the flow velocity of an interior air-flow to obtain pole with eddy flow tray using wind deflector simultaneously significantly to carry
It rises so that the shape and range of burner downstream flame are effectively controlled, to reduce the effect of NOx emission.In addition, this reality
Use timer, ventilation hole and fan with novel, when in timer preset first time to when center control mould
Block controls the electrically operated valve opens with fan and is blown into combustion air into cylinder, when preset second time arrives in timer
When central control module control the electrically operated valve and closed with fan, stop being blown into combustion air into cylinder.Described first
Time can determine with the second time according to specific requirements.Periodically combustion zone can be blown by timer and fan cooperation
Wind cools down so that the temperature of combustion zone will not be excessively high, is further reduced the discharge of NOx.
Description of the drawings
Fig. 1 is the three-dimensional cutaway view of the low nitrogen burner of the utility model.
Fig. 2 is the schematic top plan view of the low nitrogen burner of the utility model.
In figure, 1 is cylinder 1, and 1-1 is ontology, and 1-2 is aditus laryngis, and 1-3 is guide plate, and 2 be combustion air passage mechanism, and 3 are
Natural gas passage mechanism, pipeline centered on 3-1,3-2 are peripheral conduits, and 3-3 is L-shaped branch pipe, natural air gun centered on 3-1-1,
3-1-2 is natural gas gas chamber, and spray-hole centered on 3-1-3,3-3-1 is tube axial, and 3-3-2 is radial tubes, and 4 be eddy flow tray, 4-1
For eddy flow inner ring, 4-2 is eddy flow outer shroud, and 4-3 is swirl vane, and 5 be circulation port in flue gas, and 6 be wind deflector, and 7 be fan, and 8 are
Ventilation shaft.
Specific implementation mode
The utility model is described further with reference to the accompanying drawings and embodiments.
As depicted in figs. 1 and 2, a kind of low nitrogen burner of high-efficiency internal circulation is present embodiments provided, including cylinder 1,
For to cylinder 1 export spray natural gas natural gas passage mechanism 3, for cylinder 1 outlet be passed through combustion air with day
Combustion air passage mechanism 2, eddy flow tray 4, the wind deflector 6 that right gas is mixed and burned；
The cylinder 1 includes that the exit end of ontology 1-1, the ontology 1-1 are equipped with aditus laryngis 1-2, the ontology 1-1 and larynx
The wall portion of mouth 1-2 is connected；The wall portion of the aditus laryngis 1-2 opens up multiple interior circulation ports 5；
The eddy flow tray 4 is arranged in the ontology 1-1 of cylinder 1 and coaxial with the cylinder 1, and the eddy flow tray 4 includes rotation
Flow inner ring 4-1, eddy flow outer shroud 4-2 and the swirl vane 4-3 being set between eddy flow inner ring 4-1 and eddy flow outer shroud 4-2；
The wind deflector 6 is funnel type, including big opening and small opening, the wall of the big opening and the ontology
Portion is connected, and the small opening is connected with the eddy flow outer shroud of the eddy flow tray, the combustion air in cylinder to be all oriented to
Eddy flow tray；
The peripheral wall of the ontology is first-class to be spaced apart and sets there are four ventilation hole, and electrically operated valve is both provided on each ventilation hole,
Each ventilation hole is respectively connected with the ventilation shaft 8 outside cylinder, and fan 7, the fan are provided in the ventilation shaft 8
7 air-out direction is frontage and airiness hole, to be blown into combustion air into cylinder；
Further include central control module, timer, the timer, electrically operated valve and fan 7 are controlled with the center
Module is electrical connected, with so that when in timer preset first time to when central control module control it is described electronic
Valve and fan 7, which are opened, is blown into combustion air into cylinder, when in timer preset second time to when center control
Module controls the electrically operated valve and is closed with fan 7, stops being blown into combustion air into cylinder.
Due to opening up circulation port in flue gas at aditus laryngis, pressure outside hole is more than pressure in hole, so as to by external cigarette
In gas volume sucking cylinder, realizes that flue gas enters combustion zone, reduce burning local temperature, realize bias combustion.It uses and leads simultaneously
Aerofoil 6 enables to the flow velocity of an interior air-flow to obtain pole significantly to be promoted with eddy flow tray so that the shape of burner downstream flame
Shape and range are effectively controlled, to reduce the effect of NOx emission.In addition, the utility model uses timer, ventilation hole
And fan 7, when in timer preset first time to when central control module control the electrically operated valve and fan 7
Open and be blown into combustion air into cylinder, when in timer preset second time to when central control module control described in
Electrically operated valve is closed with fan 7, stops being blown into combustion air into cylinder.The first time can be according to tool with the second time
Body demand is determined.Can cooling periodically be blowed to combustion zone by timer and the cooperation of fan 7 so that the temperature of combustion zone
Will not be excessively high, it is further reduced the discharge of NOx.
In the present embodiment, the natural gas passage mechanism 3 includes central tube 3-1 and multiple peripheral conduits 3-2, described
Central tube 3-1 is arranged in eddy flow inner ring 4-1；The central tube 3-1 includes the natural air gun 3-1-1 in center, natural gas gas
Room 3-1-2 and central-injection hole 3-1-3, natural gas gas chamber 3-1-2 are set to the close aditus laryngis 1-2's of the natural air gun 3-1-1 in center
One end, central-injection hole 3-1-3 are connected to via natural gas gas chamber 3-1-2 with the natural air gun 3-1-1 in center；The multiple peripheral tube
The centerline parallel of road 3-2 and cylinder is simultaneously disposed around on the inside of the internal perisporium of cylinder, and the front end of the peripheral conduits passes through cylinder, and
The spray-hole of peripheral conduits 3-2 is located at the outside of cylinder 1, and close to aditus laryngis 1-2, and the peripheral conduits are located at the portion of inner barrel
Divide across the wind deflector 6.
Wherein, peripheral conduits are equipped with one end of spray-hole towards the inner inclination of cylinder, so that natural gas is sprayed to cylinder, with
It quickly, is uniformly mixed with natural gas.
In the present embodiment, the natural gas passage mechanism 3 further includes multiple L-shaped branch pipe 3-3, the L-shaped branch pipe 3-3 packets
Include the tube axial 3-3-1 being mutually connected vertically and radial tubes 3-3-2, the centerline parallel of tube axial 3-3-1 and cylinder and enclosing is set
On the inside of the internal perisporium of cylinder, radial tubes 3-3-2 is stretched into via circulation port in flue gas 5 inside cylinder 1, and radial tubes 3-3-2
Projection in an axial direction is at least partially disposed in the drop shadow spread of eddy flow tray 4, the one end of radial tubes 3-3-2 stretched into inside cylinder 1
With radial injection hole, the periphery for stretching into the radial tubes 3-3-2 of cylinder 1 is equipped with multiple circumferential spray-holes.
The utility model uses natural gas passage mechanism and combustion air passage mechanism, portion of natural gas that can pass through central tube
Road is injected into center, while the radial injection hole of L-shaped branch pipe can also inject natural gas above eddy flow tray, and portion of natural gas is logical
Cross peripheral conduits to be sprayed, be emitted directly toward the combustion air of outer layer, ensure at burner outlet VELOCITY DISTRIBUTION rationally, fuel gas and
Combustion air blending is uniform, and flue gas rationally controls combustion zone via combustion zone is recycled into flue gas after burning, to protect
Demonstrate,prove the stability of burning and good NOx abatement effect.
In the present embodiment, the L-shaped branch pipe 3-3 is distributed at equal intervals around cylinder 1, is set between adjacent L-shaped branch pipe 3-3
There are the peripheral conduits 3-2 of identical quantity, the extended line of the radial tubes of each L-shaped branch pipe 3-3 to pass through the axis of cylinder 1.
In the present embodiment, the wall portion of the aditus laryngis 1-2 is inside contracted compared to ontology 1-1 towards cylinder 1.
In the present embodiment, the cylinder 1 further includes guide plate 1-3, and the guide plate is connected to the wall portion of aditus laryngis 1-2
Outer rim, and the expansion of the outer inclination towards cylinder 1.
The wall portion extended out so that aditus laryngis is in bell mouth shape, is inhaled towards cylinder curls inward after partial fume discharge, a part is via flue gas
Interior circulation port enters the transition combustion zone in cylinder, and a part is directed to peripheral conduits by guide plate, into peripheral combustion zone.
Therefore, guide plate can aid in form cycle in flue gas with circulation port cooperation in flue gas, effectively reduce the model of local high temperature zone
It encloses, inhibits the generation of NOx.
In the present embodiment, ranging from 20 ° -45 ° of the angle of inclination of the guide plate 1-3.
In the present embodiment, the number of circulation port 5 is 8-12 in the flue gas, and the number of the peripheral conduits 3-2 is
16-24.
It is noted that the utility model protection is hardware configuration, it is not claimed as control method.Above only
For a preferable embodiment in the utility model embodiment.But the utility model is not limited to the embodiment above, it is all
Any equivalent change done by the utility model and modification, range of the generated function without departing from this programme
When, belong to the scope of protection of the utility model.
Claims (8)
1. a kind of low nitrogen burner of high-efficiency internal circulation, it is characterised in that：Including
Cylinder (1) sprays the natural gas passage mechanism (3) of natural gas, for being exported to cylinder (1) for being exported to cylinder (1)
Combustion air passage mechanism (2), eddy flow tray (4), the wind deflector (6) that combustion air is passed through to be mixed and burned with natural gas；
The cylinder (1) includes ontology (1-1), and the exit end of the ontology (1-1) is equipped with aditus laryngis (1-2), the ontology (1-
1) it is connected with the wall portion of aditus laryngis (1-2)；The wall portion of the aditus laryngis (1-2) opens up multiple interior circulation ports (5)；
The eddy flow tray (4) setting in the ontology (1-1) of cylinder (1) and with the cylinder (1) coaxially, the eddy flow tray (4)
Including eddy flow inner ring (4-1), eddy flow outer shroud (4-2) and the rotation being set between eddy flow inner ring (4-1) and eddy flow outer shroud (4-2)
Flow blade (4-3)；
The wind deflector (6) is funnel type, including big opening and small opening, the wall portion of the big opening and the ontology
It is connected, the small opening is connected with the eddy flow outer shroud of the eddy flow tray, the combustion air in cylinder is all oriented to rotation
Flow table；
The peripheral wall of the ontology is first-class to be spaced apart and sets there are four ventilation hole, is both provided with electrically operated valve on each ventilation hole, each
Ventilation hole is respectively connected with the ventilation shaft (8) outside cylinder, and fan (7), the wind are provided in the ventilation shaft (8)
The air-out direction for fanning (7) is frontage and airiness hole, to be blown into combustion air into cylinder；
Further include central control module, timer, the timer, electrically operated valve and fan (7) control mould with the center
Block is electrical connected, with so that when in timer preset first time to when central control module control the motor-driven valve
Door is opened with fan (7) and is blown into combustion air into cylinder, when in timer preset second time to when center control
Module controls the electrically operated valve and is closed with fan (7), stops being blown into combustion air into cylinder.
2. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 1, it is characterised in that：The natural gas is logical
Road mechanism (3) includes central tube (3-1) and multiple peripheral conduits (3-2), and the central tube (3-1) is arranged in eddy flow inner ring
In (4-1)；The central tube (3-1) includes the natural air gun in center (3-1-1), natural gas gas chamber (3-1-2) and central-injection
Hole (3-1-3), natural gas gas chamber (3-1-2) are set to one end of the close aditus laryngis (1-2) of the natural air gun in center (3-1-1), center
Spray-hole (3-1-3) is connected to via natural gas gas chamber (3-1-2) with center natural air gun (3-1-1)；The multiple peripheral conduits
The centerline parallel of (3-2) and cylinder is simultaneously disposed around on the inside of the internal perisporium of cylinder, and the front end of the peripheral conduits passes through cylinder, and
The spray-hole of peripheral conduits (3-2) is located at the outside of cylinder (1), and close to aditus laryngis (1-2), and the peripheral conduits are located in cylinder
Portion partially passes through the wind deflector (6).
3. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 2, it is characterised in that：The natural gas is logical
Road mechanism (3) further includes multiple L-shaped branch pipes (3-3), and the L-shaped branch pipe (3-3) includes the tube axial (3-3- being mutually connected vertically
1) it and radial tubes (3-3-2), the centerline parallel of tube axial (3-3-1) and cylinder and is disposed around on the inside of the internal perisporium of cylinder, diameter
Cylinder (1) inside is stretched into via circulation port in flue gas (5) to pipe (3-3-2), and the projection in an axial direction of radial tubes (3-3-2) is extremely
Small part is located in the drop shadow spread of eddy flow tray (4), and internal one end of cylinder (1) of stretching into of radial tubes (3-3-2) has radial direction
Spray-hole, the periphery for stretching into the radial tubes (3-3-2) of cylinder (1) are equipped with multiple circumferential spray-holes.
4. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 3, it is characterised in that：The L-shaped branch pipe
(3-3) is distributed at equal intervals around cylinder (1), and the peripheral conduits (3-2) of identical quantity are equipped between adjacent L-shaped branch pipe (3-3),
The extended line of the radial tubes of each L-shaped branch pipe (3-3) passes through the axis of cylinder (1).
5. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 2, it is characterised in that：Aditus laryngis (the 1-
2) wall portion is inside contracted compared to ontology (1-1) towards cylinder (1).
6. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 1, it is characterised in that：The cylinder (1)
Further include guide plate (1-3), the guide plate is connected to the outer rim of the wall portion of aditus laryngis (1-2), and towards the outer inclination of cylinder (1)
Expansion.
7. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 6, it is characterised in that：The guide plate
Ranging from 20 ° -45 ° of the angle of inclination of (1-3).
8. a kind of low nitrogen burner of high-efficiency internal circulation according to claim 2, it is characterised in that：It is followed in the flue gas
The number of annular distance (5) is 8-12, and the number of the peripheral conduits (3-2) is 16-24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924568.8U CN207815318U (en) | 2017-12-30 | 2017-12-30 | A kind of low nitrogen burner of high-efficiency internal circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924568.8U CN207815318U (en) | 2017-12-30 | 2017-12-30 | A kind of low nitrogen burner of high-efficiency internal circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207815318U true CN207815318U (en) | 2018-09-04 |
Family
ID=63327795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721924568.8U Active CN207815318U (en) | 2017-12-30 | 2017-12-30 | A kind of low nitrogen burner of high-efficiency internal circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207815318U (en) |
-
2017
- 2017-12-30 CN CN201721924568.8U patent/CN207815318U/en active Active
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Denomination of utility model: A high-efficiency internal circulation low nitrogen gas burner Effective date of registration: 20231228 Granted publication date: 20180904 Pledgee: Agricultural Bank of China Limited Qingyang County Branch Pledgor: Anhui Huaxia Blue Sky Mechanical and Electrical Equipment Co.,Ltd. Registration number: Y2023980075035 |
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