CN207716420U - Three layers of casing burner and the burner with the burner and boiler - Google Patents
Three layers of casing burner and the burner with the burner and boiler Download PDFInfo
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- CN207716420U CN207716420U CN201721526864.2U CN201721526864U CN207716420U CN 207716420 U CN207716420 U CN 207716420U CN 201721526864 U CN201721526864 U CN 201721526864U CN 207716420 U CN207716420 U CN 207716420U
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- ammonia
- burner
- layer sleeve
- fuel
- casing
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Abstract
The utility model provides a kind of three layers of casing burner, including inner layer sleeve, middle casing and outer layer sleeve, the outlet end of inner layer sleeve, the outlet end of middle casing and the outlet end of outer layer sleeve are nested successively, the arrival end of inner layer sleeve is passed through the gaseous mixture containing ammonia, the arrival end of middle casing is passed through the fuel that flame propagation velocity is higher than ammonia, and the arrival end of outer layer sleeve is passed through air.The burner may be implemented fuel of the gaseous mixture containing ammonia with flame propagation velocity higher than ammonia and be sufficiently mixed, and to solve the problems, such as waste of fuel caused by ammonia fuel does not have completely burned, and substantially reduce the generation of pernicious gas.The invention also discloses a kind of burners and boiler with above-mentioned burner.
Description
Technical field
The utility model is related to for fuel to be mixed device more particularly to a kind of casing burner, and with should
The burner of burner.
Background technology
Current device by heat supplying operation such as boiler, water heater, gas turbine etc. is still human society high speed
The foundation stone of development.Since the supply of heat is still the not only dirt from non-renewable the fossil fuel such as burning of coal, oil
Earth environment is contaminated, a large amount of carbon dioxide that discharge cause the serious consequences such as depletion of the ozone layer, and fossil fuel is also already close to withered
It exhausts, finding sustainable alternative energy source becomes the focus that the whole world is paid close attention to.
There is ammonia fuel high heating value, high-octane rating property, combustion product to only have nitrogen and water pollution-free Ke Xunhuanliyong, be
A kind of clean fuel.China is hydrazine yield and the most country of dosage in the world at present, accounts for 1/3 of Gross World Product or so, tool
There is more comprehensive and systematic ammonia production distribution, is expected to be done step-by-step from existing fossil energy and turns to the reproducible ammonia energy.But
It is the burning point height of ammonia, it is possible to insufficient phenomenon of burning occur.In order to make ammonia more fully burn often add hydro carbons or
Hydrogen fuel is as combustion adjuvant.Therefore using the mixed of the combustion gas such as ammonia and other inflammable combustion gas such as natural gas, water-gas composition water heater
It closes fuel and can guarantee that the abundant burning of ammonia reduces the use of fossil fuel again.But how to realize ammonia together with another flame propagation
Speed causes extensive concern higher than being used in mixed way for fuel of ammonia as in engineer application problem.At present it is adaptable other
Mixing arrangement is by four-way structure (cross), three-port structure (T fonts) etc. only merely by ammonia and another flame propagation speed
Degree is pooled together higher than the fuel of ammonia, enters back into combustion chambers burn.Since ammonia burning velocity is slow, flame propagation velocity
It is small, it is difficult to which that burning is complete in time, causes ammonia fuel not have completely burned to cause waste of fuel and generates pernicious gas, thus existing
There is the similar gas mixer in technology to cannot achieve the completely burned of ammonia.
Utility model content
The purpose of this utility model is to provide a kind of three layers of casing burner, to overcome ammonia in the prior art and another
Existing ammonia can not completely burned problem after kind hydrocarbon fuel gas mixing.
The utility model solves one of technical solution used by the technical problem：
Three layers of casing burner, including inner layer sleeve, middle casing and outer layer sleeve.Outlet end, the middle level of inner layer sleeve
The outlet end of casing and the outlet end of outer layer sleeve are nested successively, and the arrival end of inner layer sleeve is passed through the gaseous mixture containing ammonia.
The arrival end of middle casing is passed through the fuel that flame propagation velocity is higher than ammonia, and the arrival end of outer layer sleeve is passed through air.At this
In the burner of utility model, the mixing containing ammonia in inner layer sleeve may be implemented by middle casing nesting in inner layer sleeve
Fuel of the gas with the flame propagation velocity in middle casing higher than ammonia is sufficiently mixed.Since the flame propagation velocity of ammonia is slow, gas
State ammonia can accelerate the burning of ammonia after being mixed into fuel of the flame propagation velocity higher than ammonia, incomplete to solve ammonia fuel
Waste of fuel problem caused by burning, and substantially reduce the generation of pernicious gas.
Further, the outlet of the middle casing wraps the outlet of the inner layer sleeve.To realize flame propagation speed
Technique effect of the degree higher than gaseous mixture of the fuel package containing ammonia of ammonia.The four-way structure (cross) of the prior art and three
Logical structure (T fonts) mixing arrangement cannot achieve fuel package gaseous mixture containing ammonia of the flame propagation velocity higher than ammonia
Technique effect.
Further, the outlet of the outer layer sleeve wraps the outlet of the middle casing.To prevent ammonia ring around
It is spread in border, realizes that fuel combination fully burns under the air atmosphere that outer layer cannula exit sprays.
Further, the radial center overlapping of axles of the inner layer sleeve, middle casing and outer layer sleeve.In each layer casing
Air-flow is more unobstructed, and easier to process and manufacture.
Further, which can be higher than the fuel of ammonia：Contain hydrogen, natural gas, water-gas, stone
The fuel of oil gas, kerosene, gasoline, diesel oil, methanol, ethyl alcohol, ether or dimethyl ether.Flame propagation velocity rises higher than the fuel of ammonia
To the effect of mixture combustion of the auxiliary containing ammonia.
Further, the utility model also provides a kind of burner, including combustion chamber and burner, and the burner is upper
The three layers of casing burner stated, the gaseous mixture containing ammonia that the burner sprays are higher than the combustion of ammonia with flame propagation velocity
Material is mixed and burned in the combustion chamber.There is N in the flue gas that burning generates2, CO2, H2O is environmentally friendly gas, is reduced
The generation of toxic and harmful gas.
Further, the utility model also provide it is a kind of include said burner boiler.
Compared with the background art, it has the following advantages that the technical program：
Three layers of casing burner of the utility model can solve the problems, such as that ammonia fuel does not have waste of fuel caused by completely burned, and
And substantially reduce the generation of pernicious gas.Wherein, the exit design of the inner layer sleeve, energy are wrapped using the outlet of middle casing
It realizes that flame propagation velocity wraps up the gaseous mixture containing ammonia higher than the fuel of ammonia, plays gaseous mixture of the auxiliary containing ammonia
Effect.Also, the outlet that the outlet of outer layer sleeve wraps the middle casing keeps fuel more abundant.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structure chart of three layers of casing burner of embodiment one；
Fig. 2 is the structure chart of the burner of embodiment two；
Fig. 3 is the structure chart of the boiler of embodiment three.
Specific implementation mode
Embodiment one：
Three layers of casing burner as shown in Figure 1, including inner layer sleeve 3, middle casing 2 and outer layer sleeve 1, inner layer sleeve
3 entrance is passed through the gaseous mixture of ammonia and air, and the entrance of middle casing 2 is passed through the fuel that flame propagation velocity is higher than ammonia
(the present embodiment is：Natural gas), the entrance of outer layer sleeve 1 is passed through air to prevent ammonia to be diffused into ambient enviroment.This three layers
Casing burner is designed higher than the characteristic of the fuel of ammonia based on ammonia and flame propagation velocity, it is therefore intended that allows flame
The faster flame propagation velocity of spread speed is higher than the ammonia that the fuel of ammonia drives flame propagation velocity slower in Fuel Process
Gas burns, and ammonia is wrapped in internal-combustion completely higher than the fuel of ammonia and helps to improve burning temperature by flame propagation velocity in addition
Degree, to ensure the abundant burning of ammonia.In the burner of the utility model, inner layer sleeve 3 is wrapped up by middle casing 2, Ke Yishi
Ammonia in existing inner layer sleeve 3 is wrapped up by the natural gas in middle casing 2.Since the flame propagation velocity of ammonia is 6~8cm/s,
More slowly compared to the flame propagation velocity 40cm/s of natural gas, gaseous ammonia can accelerate the burning of ammonia after being mixed into natural gas,
To solve the problems, such as waste of fuel caused by ammonia fuel does not have completely burned, and substantially reduce the generation of pernicious gas.In addition to
Except natural gas, hydrogen, natural gas, water-gas, oil gas, kerosene, gasoline, diesel oil, methanol, ethyl alcohol, ether, dimethyl ether fire
Flame propagation velocity is faster than ammonia, therefore can be as the fuel of auxiliary ammonia burning.
The outlet 21 of middle casing wraps the outlet 31 of the inner layer sleeve.Natural gas is sprayed with the gaseous mixture containing ammonia
After mix, the ignition point of natural gas is relatively low, is readily ignited.Natural gas burns in air first generates amount of heat, then draws
The fuel combination that ammonia is constituted with natural gas is fired, ammonia is made fully to burn.
Embodiment two：
Ammonia has that ignition quality is poor as fuel, and the autoignition temperature and minimum ignition energy of ammonia are high.In addition, ammonia
Flame propagation velocity it is small, it is longer the time required to when this makes it burn in burner, and work as this kind of fuel combination water heater
When relatively low or higher load operates, causes the burning of ammonia insufficient, be all unfavorable for the realization of the efficient performance of burner.In order to
So that ammonia is more fully burnt and often add flame propagation velocity higher than fuel, hydrogen, ethers of ammonia etc. as combustion adjuvant, is formed
Gaseous mixture containing ammonia.
Therefore the present embodiment devise the burner such as Fig. 2 for will the gaseous mixture containing ammonia, flame propagation velocity it is high
It is sufficiently mixed in the fuel and air of ammonia.The present embodiment Flame Propagation speed is gasoline, flame higher than the fuel of ammonia
Spread speed is 62cm/s, is far above 6~8cm/s of flame propagation velocity of ammonia.Three layers of casing burner by inner layer sleeve 3,
Middle casing 2, outer layer sleeve 1 form.The mixed process of three kinds of gases is：Ammonia in the inner layer sleeve 3 in bosom by being passed through, fire
Flame propagation velocity is passed through higher than the fuel of ammonia by middle casing 2, and air is passed through by outer layer sleeve 1.Three layers of casing burner
End is arranged inside combustion chamber 5.It is provided with igniter 5 on the fuel emission direction of burner, after gasoline ejection first
It is ignited, the combustion range that subsequent ammonia reaches gasoline is in the burning generation high-temperature flue gas under gasoline package.Shown in Fig. 2
Three layers of casing burner with three layers of casing burner structure in Fig. 1 the difference is that, the outer layer of three layers of casing burner
The outlet of casing 1 wraps the outlet of the middle casing 2.There are a spacings with the outlet of middle casing 2 for the outlet of outer layer sleeve 1
From.The fuel that ammonia and the middle casing 2 that inner layer sleeve 3 exports export after this is sufficiently mixed in access, then with sky
It is exported by outer layer sleeve 1 after gas mixing and sprays burning.There is N in the flue gas that mixed fuel firing generates2, CO2, H2O has not been generated
Malicious pernicious gas.
Wherein inner layer sleeve 1, middle casing 2, outer layer sleeve 3 caliber relative size can be according to the different capacity of boiler
Or different use demand and make corresponding adjustment during fabrication.Since inner layer sleeve and corrosive gas ammonia directly connect
It touches, therefore the utility model is changed to by other suitable materials as material, or according to the heterogeneity of fuel using stainless steel.
Embodiment three：
It is illustrated in figure 3 a kind of application of ammonia fuel combustion nozzle on air mixture boiler, wherein mainly by outer layer sleeve
1, middle casing 2, the other component of inner layer sleeve 3 and boiler internal.As connection is passed through the outer layer sleeve 1 of primary air entrance
The air blower 5 in region, igniter device (being not drawn into figure) etc..
For the work(of general universal boiler all between 0.23MW-7MW, power is big much for water heater,
It needs to provide more hot water or heat in same time.This is intended to more combustion gas, air supply simultaneously.Wherein
Fuel one of of the ammonia as fuel combination water heater, has that flame propagation velocity is slow, this makes it in boiler combustion
It is longer the time required to when Indoor Combustion, and when this kind of air mixture boiler is in the operating of relatively low or higher load, lead to ammonia
It burns insufficient, is all unfavorable for the realization of high efficiency boiler low-carbon.Flame propagation speed is often added in order to make ammonia more fully burn
Degree is faster than fuel of ammonia etc. and is used as combustion adjuvant, such as natural gas, oil gas, gasoline, diesel oil HC fuel.And in fuel
It should also be adjusted accordingly in hybrid mode.Ammonia and flame propagation velocity are higher than the fuel of ammonia by pressure valve and flow control
Device processed controls be passed through to ensure normal operation of boiler according to a certain percentage.
The ammonia burning that the faster fuel of flame propagation velocity drives flame propagation velocity slower in Fuel Process, the combustion
Ammonia is enclosed in its internal range burning and helps to improve ignition temperature by material ensures the complete efficient burning of ammonia.This ammonia fuel
The inner layer sleeve 3 of burner, middle casing 2, outer layer sleeve 1 caliber relative size can according to the different capacity of boiler or
Different use demand and make corresponding adjustment.Since boiler power is generally all bigger, required air quantity also greatly increases.
Therefore in the case where excessively not changing existing boiler plant, still in such a way that three tunnels of air point are passed through.Ammonia, natural gas
It is passed through by innermost layer casing 3 with the gaseous mixture of air composition, flame propagation velocity is led to higher than the fuel of ammonia by middle casing 2
Enter so that ensure that flame propagation velocity is higher than ammonia when reaching in combustion chamber and just going out burner in two kinds of gases
Fuel can wrap up ammonia burning.Primary air is passed through by outer layer sleeve 1 by the pressure of air blower 5, and in combustion chamber
It is internally provided with compensated with air channel at two.Auxiliary air is passed through on the wall of combustion chamber, and tertiary air enters in auxiliary air
The more lower curtate position of mouth is passed through.To ensure the oxygen supply for having enough in combustion, and forms air and surround combustion flame
Ensure the completely burned of ammonia and flame propagation velocity higher than the fuel of ammonia, neither generates the gas of pollution air, while
Being capable of providing enough heats ensures the normal work of air mixture boiler.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation of the utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. three layers of casing burner, including inner layer sleeve, middle casing and outer layer sleeve, it is characterised in that：The inner layer sleeve
Outlet end, middle casing outlet end and the outlet end of outer layer sleeve it is nested successively, the arrival end of inner layer sleeve be passed through containing
The arrival end of the gaseous mixture of ammonia, middle casing is passed through the fuel that flame propagation velocity is higher than ammonia, the arrival end of outer layer sleeve
It is passed through air.
2. three layers of casing burner according to claim 1, it is characterised in that：Described in the outlet wrapping of the middle casing
The outlet of inner layer sleeve.
3. three layers of casing burner according to claim 1, it is characterised in that：Described in the outlet wrapping of the outer layer sleeve
The outlet of middle casing.
4. three layers of casing burner according to claim 1, it is characterised in that：The inner layer sleeve, middle casing and outer
The radial center overlapping of axles of layer casing.
5. a kind of burner, including combustion chamber, igniter and burner, it is characterised in that：The burner is claim 1-4
Three layers of casing burner described in any one, the gaseous mixture containing ammonia that the burner sprays are high with flame propagation velocity
It lights through igniter in the fuel of ammonia, and is mixed and burned in the combustion chamber.
6. a kind of boiler, including burner, it is characterised in that：The burner is the burner described in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526864.2U CN207716420U (en) | 2017-11-15 | 2017-11-15 | Three layers of casing burner and the burner with the burner and boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526864.2U CN207716420U (en) | 2017-11-15 | 2017-11-15 | Three layers of casing burner and the burner with the burner and boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207716420U true CN207716420U (en) | 2018-08-10 |
Family
ID=63061658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721526864.2U Active CN207716420U (en) | 2017-11-15 | 2017-11-15 | Three layers of casing burner and the burner with the burner and boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207716420U (en) |
-
2017
- 2017-11-15 CN CN201721526864.2U patent/CN207716420U/en active Active
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