CN207112807U - Common mode synchronized model industrial smoke resume combustion circular treatment module and device - Google Patents
Common mode synchronized model industrial smoke resume combustion circular treatment module and device Download PDFInfo
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- CN207112807U CN207112807U CN201720980511.3U CN201720980511U CN207112807U CN 207112807 U CN207112807 U CN 207112807U CN 201720980511 U CN201720980511 U CN 201720980511U CN 207112807 U CN207112807 U CN 207112807U
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- common mode
- porous media
- resume combustion
- industrial smoke
- circular treatment
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Abstract
A kind of common mode synchronized model industrial smoke resume combustion circular treatment module and device, the module includes tubular burner and two cone barrel porous media core bodys, the tubular burner includes cylinder and the ring-type radiation shield being set in cylinder, gas mixing chamber is formed between cylinder and radiation shield, the outside portion of cylinder sets radial air inlet membranous cochlea, the centrally disposed central shaft of the tubular burner；Described two cone barrel porous media core body vertex of a cones are relative, are symmetrically set on the central shaft of tubular burner and can slide axially, second-time burning space is formed between two cone barrel porous media core bodys and the ring-type radiation shield, two cone bottoms respectively constitute air inlet and gas outlet.The device is made up of multiple above-mentioned modules.This module can save the energy while realizing low NOX, low VOC emission.
Description
Technical field
Industrial smoke processing unit is the utility model is related to, low nitrogen, the VOC of more particularly to gas fuel combustion system (are waved
Hair property organic matter) processing unit.
Background technology
Combustion system employed in existing neat gas burner, combustor such as is mostly at die mould-diffusion, half premix, the premix
Formula is burnt.Due to the raising of environmental emission standard, it is desirable to which high temperature modification nitrogen oxides (NOX), craft type is greatly reduced in combustion system
VOC emission, enable to have the fully-premixed woven wire burner of low NOX working characteristics progressively to be popularized.But it compares work(simultaneously
Rate is low, efficiency is low, regulation also reveals than the features such as low, easy tempering ....
The low NO (low NOX burner) of current popular is a kind of " metal web burner ".It is steady in order to obtain
Fixed low-nitrogen discharged index is amplified, it is necessary on the basis of the low NOX generation temperature of wire netting reaction zone setting to combustion gas equivalent proportion
And accurate adjustment is carried out, to control flame temperature and flame stability by unit media area.Its low nitrogen flame set
Temperature is typically at 850 DEG C -950 DEG C.Higher than this temperature, the formation of nitrogen oxides among combustion process starts linearly increasing.
In order to obtain larger power, the area of woven wire must be just increased, causes its specific power to decline, the decline of Fire Radiation ability,
Cause the decline of system entirety heating efficiency.
The low NOX emission of multi-hole medium combustion, it is because its architectural characteristic can be to the premix of larger excess air coefficient
Combustion gas produces stable (flame stabilization) control.Also therefore under equal heating cycle, multi-hole medium combustion mode will produce more
Oxygen gas, need bigger combustion space in other words, equipment volume increases；On the contrary then power drop.
VOC is commonly defined as：Fusing point is less than room temperature, boiling point between 50 DEG C -260 DEG C, atmospheric photochemistry can be participated in
The general name of the volatile organic matter of reaction.VOC, which is handled, with current mature technology mainly two methods.Absorb catalysis method
With burning removal method.For large scale industry production, absorbing catalysis method needs larger device structure and very high post processing expense
With larger to production cost pressure.Therefore burning removal method in actual VOC handles engineering using more.Removal method of burning lacks
Falling into mainly needs extra energy resource consumption, and how to reduce system energy consumption (how making full use of additional energy in other words) is VOC
The key for removal method of burning.
Utility model content
The purpose of this utility model is to provide a kind of common mode synchronized model industrial smoke resume combustion circular treatment module and device, it
Can realize low NOX, low VOC emission, and the energy can be saved.
Inventive concept is：Flue gas VOC burning processors are designed with burner main chamber syntype, form " common mode synchronization
Type industrial smoke VOC resume combustion circulation treatment devices.That is, low nitrogen burning+flue gas Multiple Cycle resume combustion=low NOX, VOC emission.Flue gas
Multiple Cycle resume combustion is formed independent by strengthening main burner flame thermal radiation, innovation porous media type radiation absorber structure
Reinforcing heat radiation VOC reaction zones, i.e. second-time burning space.Backflow flue gas enters second-time burning space from the first porous media,
Deceleration diffusion；Sprayed from the second porous media, decompressing speed-increasing；The time slot of this process, as VOC react the period.Pass through regulation
The control point in two porous media gaps, as flue gas VOC reaction temperatures/time.Make obvious heat of smoke and " combustible component is completely anti-
Should " " super enthalpy " participation operating mode heating is formed afterwards, and reach extremely low NOX, VOC emission.
For the above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of common mode synchronized model industrial smoke resume combustion circular treatment module, the processing module include tubular burner 1 and two
Individual cone barrel porous media core body 2,5, the tubular burner 1 include cylinder 11 and the ring-type radiation shield being set in cylinder 11
12, gas mixing chamber 13 is formed between cylinder 11 and radiation shield 12, the outside portion of cylinder 11 is set and the gas mixing chamber 13
The radial air inlet membranous cochlea 6 of connection, the centrally disposed central shaft 4 of the tubular burner 1；Described two cone barrel porous media cores
Body 2,5 vertex of a cones are relative, are symmetrically set on the central shaft 4 of tubular burner 1 and can slide axially, two porous Jie of cone barrel
Second-time burning space 3 is formed between matter core body 2,5 and the ring-type radiation shield 12, two cone bottoms respectively constitute the He of air inlet 7
Gas outlet 8.
Preferably, from outer layer to internal layer, the ring-type radiation shield successively include gaseous mixture rectifying cavity, capillary nozzle layer,
Cross bluff body layer and porous media radiating layer.
Preferably, the cone barrel porous media core body 2,5 elongates system by circular flat porous medium along axle center is raised
Into the axis of pore therein is parallel with the central shaft 4 of tubular burner 1.
A kind of common mode synchronized model industrial smoke resume combustion cyclic processing device, it is synchronous that the processing unit includes several common modes
Type industrial smoke resume combustion circular treatment block coupled in series, parallel connection or connection in series-parallel are formed, several described common mode synchronized model industrial smokes
Resume combustion circular treatment module is the common mode synchronized model industrial smoke resume combustion circular treatment module described in above-mentioned any one.
Compared with prior art, the utility model has the advantages that：
By the innovative design to gas type low NOX burner and porous media VOC resume combustion processors, construct burning/
Resume combustion syntype combustion chamber, burning is changed into scalar multi-cycle from vector single cycle, improve obvious heat of smoke to the hot contribution rate of system, section
Can positive effect, definite.Because the utility model modular structure is compact, the synthesis of a variety of machine functions is integrated.So that its is same
When have efficiently, section material, environmental protection and save production space the advantages of.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment common mode synchronized model industrial smoke resume combustion circular treatment module；
Fig. 2 is its plan；
Fig. 3 is the structural representation of another embodiment common mode synchronized model industrial smoke resume combustion cyclic processing device, in figure
Part is broken away；
Fig. 4 is the dimensional structure diagram of another embodiment middle conical tube shape porous media core body；
Fig. 5 is the planar structure schematic diagram of another embodiment middle conical tube shape porous media core body；
Fig. 6 is the side view of another embodiment middle conical tube shape porous media core body, is locally broken away in figure.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
Referring to Figures 1 and 2, this common mode synchronized model industrial smoke resume combustion circular treatment module includes tubular burner 1 and two
Individual cone barrel porous media core body 2,5, the tubular burner 1 include cylinder 11 and the ring-type radiation shield being set in cylinder 11
12, gas mixing chamber 13 is formed between cylinder 11 and radiation shield 12, the outside portion of cylinder 11 is set and the gas mixing chamber 13
The radial air inlet membranous cochlea 6 of connection, the centrally disposed central shaft 4 of the tubular burner 1；Described two cone barrel porous media cores
Body 2,5 vertex of a cones are relative, are symmetrically set on the central shaft 4 of tubular burner 1 and can slide axially, two porous Jie of cone barrel
Second-time burning space 3 is formed between matter core body 2,5 and the ring-type radiation shield 12, two cone bottoms respectively constitute the He of air inlet 7
Gas outlet 8.
Further, ring-type radiation shield 12 uses following structure：From outer layer to internal layer, the ring-type radiation shield 12 wraps successively
Include gaseous mixture rectifying cavity, capillary nozzle layer, cross bluff body layer and porous media radiating layer.Gaseous mixture rectifying cavity be used for constant pressure,
Constant current, capillary nozzle layer are used for anti-backfire, and cross bluff body layer is used for flame exhibition as flame stabilization device, porous media radiating layer
Open.By such structure, flame is burnt and is stayed under 900 DEG C of operating mode and be scheduled on cross bluff body layer and porous media black matrix layer
Between, with flame mechanism, black matrix material porous media reaches design temperature, while starting outwards to produce heat radiation, also
Serve the effect of constant ignition source.Therefore the work that 900-1000 DEG C of formation, oxygen content are about 11% in second-time burning space 3
Environment, the combustibles in repetition backflow flue gas of the oxygen content that the upstream of second-time burning space 3 enters not less than 5% are made (to contain
VOC) resume combustion, after-flame, then discharged from the downstream of second-time burning space 3.
Further, the cone barrel porous media core body 2,5 is elongated by circular flat porous medium along axle center is raised
It is made, the axis of pore therein is parallel with the central shaft 4 of tubular burner 1., can be according to flue gas in concrete application
Composition, technique flow, air-flow pressure drop and VOC eliminate the parameters such as rate to design the thickness of porous media (capillary hole depth).To be more
Hole dielectric core 2,5 makes cone barrel, primarily to deploying the wall surface of the hole of pore group, directly absorbs and comes from radial direction
The radiant heat of ring radiation screen 12, after capillary attraction radiant heat transfer, heat is directly passed to the flue gas flowed through, i.e. make flue gas
Heat is obtained when flowing through high-temperature medium hole to react.And the absorption that plate porous media corresponds to radial radiation heat is minimum,
Its heat transfer is mostly the heat transfer of convection heat transfer' heat-transfer by convection and the minimum area of dielectric-slab end face surrounding.From heat transfer theory, the spoke of flame
Penetrate heat transfer accounts for its total energy more than 70%.
In terms of by hot property：With the ㎜ of diameter 100, the ㎜ of thickness 10 how empty dielectric-slab and the ㎜ of bottom footpath 100, the ㎜ of footpath 30 is pushed up, it is high
80 ㎜, the ㎜ of thickness 10 porous media cone cylinder contrast, corresponding to the ㎜ of chamber diameter 100, the heat radiation of long 80 ㎜ walls is radially
Projected area is：3140mm2∶17977mm2, cone cylinder lateral area is 5.72 times of positive round platen area, it may also be said to which cone barrel is more
Hole medium is higher than the heated ability of positive rondelle porous media 5.72 times；
Again from heat-transfer capability：The how empty dielectric-slab pore water conservancy area of positive round is 7389mm2, cone barrel porous media
Water conservancy area be 21733mm2, cone cylinder area of dissipation is 2.94 times of positive round flat plate radiation area.
Can be seen that a core of the present utility model from the contrast of data briefly above is --- low nitrogen burning state
Under high entirety " thermal efficiency " --- common mode synchronization flue gas VOC processing structures.
Porous media material can be：310S、SiC、25Lv5、27Lv7m2.
Reference picture 3, the common mode synchronized model industrial smoke resume combustion cyclic processing device is by two common mode synchronized model industrial smokes
Resume combustion circular treatment block coupled in series forms.Common mode synchronized model industrial smoke resume combustion circular treatment module therein shown in Fig. 1 with locating
Reason module is essentially identical, and difference is, the pore of cone barrel porous media core body 2,5 is different.It is circular hole in previous embodiment.
It is delthyrium in the present embodiment, reference picture 4 to Fig. 6, arrow A1, A2 represent airflow direction in figure.
In actual applications, multiple common mode synchronized model industrial smoke resume combustion circular treatment module strings can be used as needed
Connection, in parallel or connection in series-parallel composition common mode synchronized model industrial smoke resume combustion cyclic processing device.
Above-mentioned common mode synchronized model industrial smoke resume combustion circular treatment module is applied to the low of all gas fuel combustion system
Nitrogen, VOC processing.
Fume treatment process is broadly divided into：Cigarette/air is mixed to form combustion gas, fuel gas buring conducts heat, in flue gas porous media
Resume combustion, mixed flue gas export four courses of work.More specifically flue gas processing method includes：
Fuel/air mixture mixing (combustion gas) inputs the gas mixing chamber 13 from radial air inlet membranous cochlea 6, and combustion gas passes through ring-type spoke
Internal face low nitrogen burning of the hole in the ring-type radiation shield 12 of screen 12 is penetrated, forms tubular film flame, ring-type radiation shield 12
900 DEG C or so itself are also heated to, oxygen gas caused by low nitrogen burning are discharged into the second-time burning through ring-type radiation shield 12
Space 3, ring-type radiation shield 12 is simultaneously to the radiant heat of second-time burning space 3；
Meanwhile another way backflow flue gas enters the second-time burning from air inlet 7 through a cone barrel porous media core body 2
Space 3, sprayed through another cone barrel porous media core body 5 from gas outlet 8, flue gas resume combustion in the process removes VOC；
By adjusting the gaseous-pressure in second-time burning space 3, adjust between two cone barrel porous media core bodys 2,5
Gap, smoke reaction temperature and time in second-time burning space 3 can be controlled, the combustible component in flue gas is reacted completely.
In preferred mode, resume combustion control mode of the flue gas in second-time burning space 3 includes：
Oxygen gas caused by low nitrogen burning are discharged into the second-time burning space along the direction vertical with the central shaft 4
3, and pressure of discharging fume is more than the pressure of the flue gas inputted from cone barrel porous media core body 2, two-way flue gas is formed slipstream rapid
Mixed heat transfer；
The radiant heat that two cone barrel porous media core bodys 2,5 absorb ring-type radiation shield 12 makes its medium holes heat up, flue gas
Heat is obtained when flowing through high-temperature medium hole to react；
The gap between two cone barrel porous media core bodys 2,5 is adjusted, the aerodynamic parameter in second-time burning space 3 occurs
Linear change, flame radiation can be passed into processed flue gas to greatest extent.
At least some embodiments possess advantages below：
(1) high efficiency：At a temperature of the low nitrogen burning of setting, by innovating combustion chamber porous media structure and aerodynamics
Optimization, make combustion gas in determining the burning of reaction zone (ring-type radiation shield) low nitrogen formula.Meanwhile after establishing high excess air ratio burning
High temperature gases recirculating resume combustion flow, make obvious heat of smoke and do not use up oxygen repetition participation subsequent combustion reaction wherein, so can both return
With fume afterheat, and the oxygen in the larger excess air coefficient of low nitrogen burning, it can be provided for its resume combustion process beneficial to support.
(2) high heat transfer：While tubular burner inner wall face forms low nitrogen burning, the flue gas come is flowed through to upstream with three kinds
Its resume combustion of mode tissue.It is that tubular burner is discharged fume by porous media ring-type radiation shield first, its direction and burner axle center
Vertically, and because the exhanst gas outlet pressure of its ring-type radiation shield is more than the backflow flue gas of axial circulation, therefore slipstream is formd
The mixed heat transfer of rapids；Next to that the backflow flue gas axially introduced will be by two cone barrel being symmetrically installed porous media core bodys, this
Porous media core body is heated by its overcoat annular radiation shield synchrotron radiation again, the turbulent flow flue gas containing combustibles is situated between in high temperature
More heats are obtained in matter hole and are fully reacted.The vertex of a cone of two cone barrel porous media core bodys is adjusted away from two cone cylinders can be made
Linear change, maximum limit occur for the aerodynamic parameter that the VOC central reactions area (second-time burning space) between radiation shield is filled with outer sleeve
Degree can pass to flame radiation processed flue gas, complete VOC and eliminate.
(3) low NOX：In the porous media assembly of particular configuration, with changes in flow rate, combustion gas equivalent proportion is increased and set
Fixed servo interval automatically adjusts, and makes reaction zone temperature constant on design point (950 DEG C ± 50 DEG C), forms stable low nitrogen row
Put.Ring-type radiation shield utilizes its ripple struction, and the flame to be sprayed from its wire side provides the axial force of one-way flow.
(4) low consumption：Flue gas resume combustion can take back obvious heat of smoke combustion zone, and wherein VOC combustibles will participate in reacting, combustion
Burn reaction zone and just form " super enthalpy " state --- i.e.：Reaction zone total amount of heat exceedes primary fuel supply institute heat content.Isothermal is defeated
Go out to be formed low consumption state.In terms of the theory of combustion, low nitrogen is begun by reduction flame temperature, and method is adulterated to increase excess air
Cold wind is more, causes combustion reaction slack-off.Discounting for reaction zone (increasing combustion space) is extended, then efficiency of combustion reduces, in flue gas
Fuel is not use up, oxygen has rise.Establish flue gas Multiple Cycle resume combustion pattern, then can effectively drain in combustion gas it is flammable into
Part and flue gas waste heat-recovering, " super enthalpy " phenomenon of given temperature section is formed, make overall heating technological process " low consumption ".
(5) VOC is eliminated：For heating system operating mode, VOC is due to that heating object is heated (heating-up temperature is less than 500 DEG C)
It is and caused.Particularly under flameless combustion state, VOC caused by heating object arranges with outside flue gas.The utility model utilizes cigarette
Resume combustion of the gas in particular configuration porous media, come the middle VOC that removes smoke.As a result, VOC exhausts, while contributes heat.
(6) burn integrated with fume treatment, overall efficiency is high, the external application energy is low.The utility model passes through to gas type
The innovative design of low NOX burner and porous media VOC resume combustion processors, constructs burning/resume combustion syntype combustion chamber --- makes
Burning is changed into scalar multi-cycle from vector single cycle, and it is obvious, definite to the hot contribution rate of system, energy-saving effect to improve obvious heat of smoke.
(7) it is compact：Because the utility model modular structure is compact, the synthesis of a variety of machine functions is integrated.So that its is same
When have efficiently, section material, environmental protection and save production space the advantages of.
The utility model is described in detail above by specific embodiment, these detailed description are only limited to
Content of the present utility model is helped skilled in the art to understand, the limit to scope of protection of the utility model can not be interpreted as
System.Various retouchings that those skilled in the art are carried out under the utility model design to such scheme, equivalent transformation etc. all should wrap
It is contained in the scope of protection of the utility model.
Claims (4)
- A kind of 1. common mode synchronized model industrial smoke resume combustion circular treatment module, it is characterised in that：The processing module is fired including tubular Burner (1) and two cone barrel porous media core bodys (2,5), the tubular burner (1) include cylinder (11) and are set in cylinder Ring-type radiation shield (12) in body (11), gas mixing chamber (13), cylinder (11) are formed between cylinder (11) and radiation shield (12) Outside portion the radial air inlet membranous cochlea (6) that is connected with the gas mixing chamber (13), the center of the tubular burner (1) are set Central shaft (4) is set；Described two cone barrel porous media core body (2,5) vertex of a cones are relative, are symmetrically set in tubular burner (1) The central shaft (4) on can slide axially, two cone barrel porous media core bodys (2,5) and the ring-type radiation shield (12) it Between form second-time burning space (3), two cone bottoms respectively constitute air inlet (7) and gas outlet (8).
- 2. common mode synchronized model industrial smoke resume combustion circular treatment module according to claim 1, it is characterised in that：From outer layer To internal layer, the ring-type radiation shield (12) includes gaseous mixture rectifying cavity, capillary nozzle layer, cross bluff body layer and porous Jie successively Matter radiating layer.
- 3. common mode synchronized model industrial smoke resume combustion circular treatment module according to claim 1, it is characterised in that：The cone Tubular porous media core body (2,5) is made up of circular flat porous medium along raised elongate in axle center, the axle of pore therein Line is parallel with the central shaft (4) of tubular burner (1).
- A kind of 4. common mode synchronized model industrial smoke resume combustion cyclic processing device, it is characterised in that：The processing unit is by several Common mode synchronized model industrial smoke resume combustion circular treatment block coupled in series, parallel connection or connection in series-parallel are formed, several described common mode synchronized models Industrial smoke resume combustion circular treatment module is the common mode synchronized model industrial smoke resume combustion described in any one in claims 1 to 3 Circular treatment module.
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| CN201720980511.3U CN207112807U (en) | 2017-08-07 | 2017-08-07 | Common mode synchronized model industrial smoke resume combustion circular treatment module and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270288A (en) * | 2017-08-07 | 2017-10-20 | 段秀春 | Common mode synchronized model industrial smoke resume combustion circular treatment module, device and method |
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2017
- 2017-08-07 CN CN201720980511.3U patent/CN207112807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270288A (en) * | 2017-08-07 | 2017-10-20 | 段秀春 | Common mode synchronized model industrial smoke resume combustion circular treatment module, device and method |
| CN107270288B (en) * | 2017-08-07 | 2023-03-14 | 段秀春 | Common-mode synchronous industrial flue gas after-combustion circulating treatment module, device and method |
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