CN106433792A - Gasification nozzle and gasification reactor - Google Patents
Gasification nozzle and gasification reactor Download PDFInfo
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- CN106433792A CN106433792A CN201510474617.1A CN201510474617A CN106433792A CN 106433792 A CN106433792 A CN 106433792A CN 201510474617 A CN201510474617 A CN 201510474617A CN 106433792 A CN106433792 A CN 106433792A
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Abstract
The invention discloses a gasification nozzle and a gasification reactor. The gasification nozzle comprises a connection flange (1), a material stream conveying pipe joint (3) and a material stream distributor, wherein the bottom portion of the connection flange is installed on the gasification reactor (100), the top surface of the connection flange is provided with a plurality of upper-and-down-penetrating holes used as nozzle branch pipes (11) and distributed at intervals, the material stream distributor is arranged on the top surface of the connection flange and comprises a cylinder having an inner cylinder cavity, the area of the top surface inlet of the inner cylinder cavity is smaller than the area of the bottom surface outlet so as to make the material stream entering from the top surface inlet outflow from the bottom surface outlet in a dispersed manner, the top surface inlet is connected to the material stream conveying pipe joint, the bottom surface outlet is butted to the plurality of the nozzle branch pipes, and the material stream outflowing from the bottom surface outlet in the dispersed manner can enter the gasification reactor through the plurality of the nozzle branch pipes. According to the present invention, the gasification nozzle has advantages of simple structure and convenient processing, and can effectively improve the dispersibility and the uniform distribution of the coal powder and improve the reaction rate of the gasification reactor.
Description
Technical field
The invention mainly relates to a kind of nozzle arrangements, it is especially adapted for use in the gasification nozzle of gasification furnace.
Background technology
In the coal dust gasification technical process of gasification furnace, the nozzle/nozzle structure of gasification furnace is most important,
Determine mixing uniformity of charging uniformity, coal dust and oxygen of coal dust etc., and then for gasification reaction
Speed, response time and efficiency of carbon con version etc. affect to depth.
Nozzle of the prior art increases fluid frequently with multi-stage splitter to realize evenly distributing of charging
Kinetic energy.For example disclose a kind of gasifier note of typical structure in Chinese patent application CN 1903998 B
Emitter, referring to Fig. 1, this gasifier injector adopts two-stage allotter 22 that main flow coal powder distribation is extremely multiple
Arm 26.Two-stage allotter 22 includes main chamber 38 and multiple secondary cavity 46, and main chamber is built-in with
The primary fluid separator 42 of cone shape, secondary cavity 46 is built-in with second grade fluid separator 50.?
When being applied to gasification furnace, main flow coal dust will clash into the primary fluid separator 42 of taper and enters cone bottom
Six arms, thus evenly distributing to six secondary cavity 46, then the end from six secondary cavity 46
End is evenly distributed to 36 arms 26 by second grade fluid separator 50.
In the structure of such multi-stage splitter, structural style is big, and the installation of arm and processing are sufficiently complex,
And the uniformity coefficient of fluid distribution is not also high, the rate of flow of fluid flowing out from 36 arms 26 is not
All it is directly entered the top of body of heater inner chamber, be also easy to produce back-mixing stream, have a strong impact on reaction rate.
Content of the invention
For drawbacks described above of the prior art or deficiency, the invention provides a kind of gasification nozzle and gasification
Reactor, the structure of this gasification nozzle is simple, small, easy to process, can be effectively improved stream
Dispersibility and the degree that evenly distributes are to improve the reaction rate of gasification reactor.
To achieve these goals, the present invention provides a kind of gasification nozzle, and this gasification nozzle includes connection method
Orchid, stream conveying tube joint and stream distributor, the bottom of described adpting flange is installed on gasification reactor
On, the top surface of described adpting flange offer multiple as nozzle arm and passing through up and down of being spaced apart from each other
Through hole, described stream distributor is arranged on the top surface of described adpting flange and includes the cylinder with interior barrel chamber
Body, the area of the top surface entrance of described interior barrel chamber is less than the area of floor outlet so that entering from described top surface
The stream that mouth enters can disperse to flow out from described floor outlet, and it is defeated that described top surface entrance connects described stream
Send pipe joint, described floor outlet butts up against multiple described nozzle arms, disperse stream from described floor outlet
The stream going out can be entered in described gasification reactor by multiple described nozzle arms.
Preferably, this gasification nozzle also includes premixing gasifying agent pipe, the described inner core of described stream distributor
The bottom in chamber is formed with premix chamber, in described premix gasifying agent pipe insertion described premix chamber so that by
The gasifying agent that described premix gasifying agent Gutron enters and the described stream flowing out from the dispersion of described floor outlet exist
Described premix within the chamber mixes and passes through in multiple described nozzle arms described gasification reactors of entrance.
Preferably, described stream distributor is including as the cone cylinder of described cylinder, porous supporting plate and multiple
The porous distributor of spheroid, described porous supporting plate is arranged on the bottom of cone cylinder intracavity of described cone cylinder and this is many
Via is covered with the supporting plate of hole, multiple described spheroids are stacked in the described cone cylinder chamber above described porous supporting plate
In so that the stream that the addendum cone face entrance from described cone cylinder chamber enters can be through the ball described spheroid
Body space and described via the base cone face outlet whereabouts from described cone cylinder chamber.
Preferably, described premix chamber be formed at described porous supporting plate and described adpting flange top surface it
Between, the tangential direction of the described premix internal perisporium along described cone cylinder chamber for the gasifying agent pipe inserts described premix chamber
In so that the gasifying agent that is passed through can be mixed into eddy flow in described premix within the chamber with described stream.
Preferably, described spheroid is porcelain ball, and described porcelain ball layering is stacked and is covered with described porous supporting plate
In the described cone cylinder chamber of side.
Preferably, this gasification nozzle also includes the fixed seal head being installed on described adpting flange, and this is fixed
End socket arranges around described cylinder and this cylinder is fixed on the top surface of described adpting flange.
Preferably, it is formed with around this periphery wall between the periphery wall of described fixed seal head and described cylinder
Pressurising chamber, this pressurising chamber is connected with pressurising pipe.
Preferably, described pressurising pipe is connected with the tail gas exhaust pipe of described gasification reactor.
Preferably, this gasification nozzle also includes main gasifying agent pipe joint, is formed with gas in described adpting flange
Agent passage, this gasifying agent passage includes gasification agent inlet and the shape being connected with described main gasifying agent pipe joint
Become the multiple gasification agent outlets on the bottom surface of described adpting flange, described nozzle arm is in described connection method
Stream outlet is formed with blue bottom surface, described gasification agent outlets export interval setting with described stream and make
The stream of the gasifying agent stream and the outlet outflow of described stream that obtain described gasification agent outlets outflow can be described
Form head-on collision mixing in gasification reactor.
Preferably, on the bottom surface of described adpting flange, each described stream exports corresponding at least one pair of
Described gasification agent outlets, the described gasification agent outlets of two in gasification agent outlets described in each pair are arranged symmetrically in
The both sides of described stream outlet, the described gasifying agent stream flowing out from each described gasification agent outlets is all tilted towards
Lowerly towards the stream flowing out from the outlet of described stream.
Preferably, described gasifying agent passage includes circumferential air flue, radial direction air flue and the inclination gas being sequentially communicated
Road, described circumference air flue is formed in the periphery edge of described adpting flange and is connect with described main gasifying agent pipe
Head is connected, and described radial direction air flue extends radially inwardly from described circumference air flue, and described inclination air flue is from described
Radial direction air flue extends to described gasification agent outlets inclined downward.
Preferably, along described adpting flange from outside to inside radially, the cross section of described radial direction air flue
Area be gradually reduced.
Preferably, described nozzle arm is formed with stream entrance on the top surface of described adpting flange, described
Stream entrance is in that Concentric circle array is arranged on the top surface, in this Concentric circle array, each concentric circular
On be equipped with and be circumferentially spaced and radially aligned multiple described stream entrance, to be formed radially
Many blowdown stream entry queue, often arrange described stream entry queue both sides be provided with being respectively symmetrically described
Radial direction air flue.
Preferably, described circumference air flue includes circumferentially spaced arrangement and multi-section circular arc gas independent of each other
Road, every section of described circular arc air flue is respectively connected with described main gasifying agent pipe joint, and every section of described circular arc air flue is equal
It is connected with multiple rows of described radial direction air flue.
Preferably, this gasification nozzle also includes cooling medium inlet attack and cooling medium outlet connection, institute
State the bottom that gasifying agent passage is formed at described adpting flange, be also formed with the top of described adpting flange
Connect the coolant guiding channel of described cooling medium outlet connection and described cooling medium inlet attack, this is cold
But medium channel includes multiple rows of radial passage and the multiple tracks circular arc passage arranged in Concentric circle array shape,
Circular arc passage described in each road of described radial passage radial communication；
Wherein, the Concentric circle array that multiple tracks circular arc passage is arranged into is concentric with what described stream entrance was arranged into
Circular array diametrically offsets one from another, and multiple rows of described radial passage and multiple rows of described stream entry queue are along week
Stagger to each other.
Preferably, described circular arc passage includes Nei road circular arc passage and around this Nei road circular arc passage
Outer course circular arc passage, described outer course circular arc passage include mutually separating and the first independent arc section passage and
Second arc section passage, described first arc section passage is close and connects described cooling medium inlet attack,
Described second arc section passage is close and connects described cooling medium outlet connection, and described Nei road circular arc leads to
Road is complete circular arc passage to connect described cooling medium inlet attack and cooling medium outlet connection.
Additionally, present invention also offers a kind of gasification reactor, this gasification reactor includes above-mentioned gasification
Nozzle.
Wherein, simple according to the porous structure of distributor of the present invention, only include cone cylinder, in cone cylinder, setting is many
Hole supporting plate, porous supporting plate stacks multiple spheroids so that the stream entering from addendum cone face entrance can pass through
Spheroid gap and porous supporting plate via and final export from base cone face, thus, stream passes through ball
Body space obtains fully dispersed, and can pass through porous supporting plate even drop down.When being applied to gasification nozzle,
In conjunction with the interior adpting flange setting multiple nozzle arms, may replace multi-stage splitter so that the build of nozzle more
Little, nozzle is easy to process and assembles.Further, also can be formed between porous supporting plate and adpting flange
Premix chamber, so that stream with gasifying agent premixing uniformly, forms rotation in the case of being passed through gasifying agent
Stream, thus more uniformly flow in gasification furnace from the multiple nozzle arms in adpting flange.In adpting flange
Gasifying agent passage also can be set to be connected so that gasifying agent in gasifying agent passage with main gasifying agent pipe joint
Flow out and occur to clash in gasification furnace with the stream of nozzle arm outflow from outlet and mix, more thoroughly divide
Dissipate, laminar flow can be formed, realize rapid mass transfer and conduct heat and complete gasification reaction, improve reaction rate.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with
Detailed description below is used for explaining the present invention together, but is not construed as limiting the invention.?
In accompanying drawing：
Fig. 1 is according to a kind of structural representation of multi-stage splitter of the prior art；
Fig. 2 is gasification nozzle and its peace with porous distributor according to the preferred embodiment of the present invention
The schematic perspective view of assembling structure；
Fig. 3 is the top view of the gasification nozzle shown in Fig. 2 and its mounting structure；
Fig. 4 is the C-C sectional view in Fig. 3；
Fig. 5 is the front view of the gasification nozzle shown in Fig. 2 and its mounting structure；
Fig. 6 is the D-D plan view in Fig. 5；
Fig. 7 is the E-E sectional view in Fig. 5；
Fig. 8 is the J-J sectional view in Fig. 7；
Fig. 9 is the F-F sectional view in Fig. 5；
Figure 10 is the I-I partial sectional view in Fig. 9；
Figure 11 is the K-K partial sectional view in Fig. 9.
The description of reference numerals of the present invention
1 adpting flange 2 cone cylinder
3 stream conveying tube joint 4 fixed seal head
The 5 premix main gasifying agent pipe joints of gasifying agent pipe 6
7 cooling medium inlet attack 8 cooling medium outlet connection
The circumferential air flue of 11 nozzle arm 12
13 radial direction air flue 14 tilts air flue
15 radial passage 16 circular arc passage
21 porous supporting plate 22 spheroid
100 gasification reactor 110 stream entrance
111 streams export 141 gasification agent outlets
A premixes chamber B pressurising chamber
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that
Specific embodiment described herein is merely to illustrate and explains the present invention, is not limited to this
Bright.
In invention, in the case of illustrating on the contrary, the noun of locality of use as " upper and lower, top,
Bottom " be typically for direction shown in the drawings for or for vertically, vertically or on gravity direction
For the relationship description word of each part mutual alignment；" inside and outside " and " radially, axially " is all
For the center of adpting flange 1.
As shown in Fig. 2 present invention firstly provides a kind of for the gasification nozzle on gasification reactor 100,
This nozzle inputs stream by stream conveying tube joint 3, and it is (for example anti-that stream enters gasification reactor 100
Answer stove) furnace chamber in and complete gasification reaction with gasifying agent (such as oxygen).Stream alleged by the present invention
Refer to the material stream being made up of carbonaceous material, dry pulverized coal or water-coal-slurry that such as brown coal are made, carbonaceous material can
Including：Coal, coal directly-liquefied residue, heavy oil residue, biomass, municipal solid rubbish etc. can be gasified
Carbonaceous material.
In the present embodiment, the one kind containing as stream distributor in this gasification nozzle is novel porous
Distributor, as shown in figure 4, this porous distributor includes the cone cylinder 2 of top end opening, porous supporting plate 21
With multiple spheroids 22, in cone cylinder 2, it is formed with cone cylinder chamber, this cone cylinder chamber has addendum cone face entrance and base cone face
Outlet, porous supporting plate 21 is arranged on and is covered with via on the bottom of cone cylinder intracavity and this porous supporting plate 21, many
Individual spheroid 22 is stacked in the cone cylinder chamber of porous supporting plate 21 top, the stream energy entering from addendum cone face entrance
Enough export through the spheroid gap spheroid 22 and via and from base cone face.
This porous distributor is different from the same aforementioned multistage distribution as stream distributor of prior art
Device, structure composition simple it is easy to processing and manufacturing.Can install as porous supporting plate 21 in cone cylinder 2
Metallic porous sheet or porous ceramic plate, and stack spheroid 22 thereon, such as porcelain ball or metal ball etc. are by resistance to
The mill various spheroids made of material, enable using the gap between spheroid the streams such as the coal dust that enters from
In pass through, so that coal dust being more evenly distributed when porous supporting plate 21 falls, it is to avoid be deposited in cone
The bottom centre of barrel chamber, results in blockage.Wherein, coal dust can be by nitrogen or carbon dioxide as load
Gas carries coal dust pressurized transfer.Porous supporting plate 21 can also be metal net mask etc., additionally, 22 points of spheroid
Stacking is put and is covered with when the cone cylinder chamber of porous supporting plate 21 top, may also set up metal net mask between each layer,
Position with fixing each spheroid 22.The diameter of spheroid 22 is usually 10～30mm, such as 20mm,
But it is not limited to this, can be determined according to material elementses such as the size in cone cylinder chamber, spheroid gap lengths.
It will be appreciated to those of skill in the art that the porous distributor shown in Fig. 4 is stream distributor
Preferred constructive form, cylinder therein is not limited to cone cylinder 2 or prismatic cylinder or prismatic barrel chamber
Deng.The similar porous supporting plate 21 that the into the barrel chamber of porous distributor may also set up multilamellar is right to substitute spheroid 22
The peptizaiton of coal dust.
When this porous distributor is applied to the gasification nozzle illustrating, the work evenly distributing to coal dust can be played
With beneficial to follow-up manifold setting, thus improving single stove vaporization ability.Specifically, referring to Fig. 2 extremely
Fig. 4, the lower section setting adpting flange 1 of porous distributor, the bottom of adpting flange 1 is installed on gasified reverse
Answer on device 100, the top surface of adpting flange 1 offer multiple as nozzle arm 11 and be spaced point
The up/down perforation hole of cloth, porous distributor is arranged on the top surface of adpting flange 1, and addendum cone face entrance connects
Stream conveying tube joint 3, the outlet of base cone face butts up against multiple nozzle arms 11 so that exporting from base cone face
The stream flowing downward out more dispersed can be more evenly distributed on each nozzle arm 11 and pass through nozzle
The stream outlet 111 of arm 11 enters in gasification reactor 100.
Wherein, the stream outlet 111 of nozzle arm 11 can direct opening as illustrated in fig. 4, also can pacify
Dress nozzle.Here by arranging multiple nozzle arms 11, the dispersion of stream and gasifying agent can be increased, reduce
The load of single arm, reduces nozzle wear, prolonging nozzle life-span, the flexible adjustment of expanding production load
Property.Inside set the adpting flange 1 of all multiinjector arms 11, efficiently solve multi-stage splitter in Fig. 1
Rhizoma Osmundae is many, build is big, the problem of complex structure and difficult to manufacture.In a word, the gasification nozzle of the present invention is only
Including structure simple porous distributor, adpting flange 1 and stream conveying tube joint 3, compared to existing
The nozzle arrangements of technology, not only structure complexity reduction, further reduces the size of nozzle, economical and practical.
Preferably, porous supporting plate 21 is arranged on the top in the base cone face in cone cylinder chamber, this porous supporting plate 21
Circumference is fixedly mounted on the internal perisporium in cone cylinder chamber.So, at the bottom of porous supporting plate 21 and cone cylinder chamber
It is formed with clearance space (premix chamber A) between the conical surface, be easy to subsequently to be passed through gasifying agent and premixed
Close.Correspondingly, gasification nozzle is connected with premix gasifying agent pipe 5, porous supporting plate 21 and adpting flange 1
Top surface between be formed with premix chamber A, premix gasifying agent pipe 5 along the internal perisporium in cone cylinder chamber tangential side
To in insertion premix chamber A, in this premix chamber A, by the premix gasification that is passed through of gasifying agent pipe 5
Agent and the stream flowing downward out from porous supporting plate 21 are mixed into eddy flow, eddy flow help to gasifying agent
Uniform with stream mixes and evenly distributes, and this eddy flow passes through multiple nozzle arms 11 and enters gasification reactions
In device 100.By setting premix chamber A be passed through premix gasifying agent, it is capable of coal dust and oxygen
Premixing, effectively preheating, shortening response time, accelerate the flow velocity of coal dust and air-flow, improve coal dust and gas
Dispersion between stream, to accelerate reaction rate.As shown in figure 3, being symmetrical arranged two premix gasifications
Agent pipe 5, to strengthen the formation of the eddy flow along same direction of rotation.In one embodiment of the invention,
The gas being passed through in premix gasifying agent pipe 5 is not limited to the gas as gasifying agent, the indifferent gas such as such as nitrogen
Body can also use.Gasifying agent alleged by the present invention include but is not limited to oxygen, vapor, air, two
The oxygen-containing gas such as carbonoxide and/or their mixed gas.
Additionally, gasification nozzle also includes the fixed seal head 4 being installed on adpting flange 1, this fixed seal head
4 arrange and this cone cylinder 2 are fixed on the top surface of adpting flange 1 around cone cylinder 2.Wherein, fixing envelope
4 play the fixation to cone cylinder 2.In the present embodiment it is illustrated that fixed seal head 4 be circle
Shape, built-in cone cylinder 2, top external stream conveying tube joint 3, bottom is fixed to adpting flange 1
On top surface.Preferably, it is formed with around this periphery wall between the periphery wall of fixed seal head 4 and cone cylinder 2
Pressurising chamber B, this pressurising chamber B is connected with pressurising pipe.The tail of pressurising Guan Keyu gasification reactor 100
Gas exhaust duct is connected, and to be filled with heating gas, or also can be filled with noble gases etc. in pressurising chamber B, fill
Air pressure in pressure chamber B is preferably roughly the same with the stove internal gas pressure of gasification reactor 100, that is, formed all
Pressure, is damaged with the material stress reducing porous distributor, and when being filled with heating gas in pressurising chamber B,
Its heat also can carry out indirect preheating to stream (i.e. pulverized coal flow), and stream stream is further through connection
Also can be preheated during flange 1.As a kind of optional embodiment, also cone cylinder 2 can be not provided with,
Porous supporting plate 21 is directly fixedly connected with the inwall of fixed seal head 4, porous supporting plate 21 to stream conveys
Stack spheroid 22 in cavity between pipe joint 3 to form the passage that feed streams pass through, realize uniformly dividing
The purpose of bulk cargo stream.
It is not simply formed with multiple nozzle arms 11 of up/down perforation in adpting flange 1, in it, be also formed with gas
Agent passage and external main gasifying agent pipe joint 6, gasifying agent passage includes and main gasifying agent pipe joint 6
Connected gasification agent inlet and the multiple gasification agent outlets 141 being formed on the bottom surface of adpting flange 1, ginseng
See Figure 10, nozzle arm 11 is formed with stream outlet 111, gasifying agent on the bottom surface of adpting flange 1
Outlet 141 with stream export 111 interval settings and make gasification agent outlets 141 flow out gasifying agent stream with
The stream of stream outlet 111 outflow can form head-on collision mixing in gasification reactor 100.This fluid
Head-on collision contributes to the quick mixing of medium, vibration diffusion, can speed up heat and mass, lifts reaction efficiency,
Shorten the gasification reaction time, improve efficiency of carbon con version and the intensity of gasification.
As shown in Figure 9 and Figure 10, on the bottom surface of adpting flange 1, each stream outlet 111 is corresponding
In at least one pair of gasification agent outlets 141, two in each pair gasification agent outlets gasification agent outlets 141 are symmetrical
It is arranged in the both sides of stream outlet 111, the oxygen stream flowing out from each gasification agent outlets 141 is all tilted towards
Lowerly towards stream.So, on the Rendezvous Point apart from the bottom surface of adpting flange 1, oxygen stream and stream
Head-on collision dispersion.After setting further and adjusting angle and each self-flow rate between oxygen stream and stream,
Oxygen stream is mixed with the head-on collision of one or more pairs of streams can also be in the furnace chamber top shape of gasification reactor 100
Become laminar flow, eliminate the impact to gasification reaction for the aforesaid back-mixing stream.
As a kind of preferred implementation, the setting of the gasifying agent passage in adpting flange 1 is referring to Fig. 9 extremely
Figure 11.Wherein, this gasifying agent passage includes being sequentially communicated circumferential air flue 12, radial direction air flue 13 and incline
Tiltedly air flue 14, circumferential air flue 12 is formed in the periphery edge of adpting flange 1 and is connect with main gasifying agent pipe
6 are connected, and radial direction air flue 13 extends radially inwardly from circumferential air flue 12, tilt air flue 14 from radially
Air flue 13 extends to gasification agent outlets 141 inclined downward.
Wherein, circumferential air flue 12 can connect multiple radial direction air flues 13, and each radial direction air flue 13 can connect many
To inclination air flue 14.Circumferential air flue 12 can be separated into multiple segmental arc independent of each other, as illustrated, point
It is divided into the circumferential air flue 12 of four segmental arc shapes, respectively the main gasifying agent pipe joint 6 with four being arranged symmetrically
It is connected, thus forming independent air admission unit, to strengthen intake efficiency and to balance each gasification agent outlets 141
Gasifying agent stream flow velocity.Preferably, as shown in figure 11, along the radial direction from outside to inside of adpting flange 1
On, the area of the cross section of radial direction air flue 13 is gradually reduced so that gasifying agent stream is in inward flow
When speed increase, improve energy of the impinging jet, be conducive to clash into diffusion.And, the gas in adpting flange 1
Gasifying agent stream can be preheated for agent passage so that gasifying agent volumetric expansion, increases gasifying agent further
The flow velocity of stream and kinetic energy.
Corresponding to the above-mentioned layout feature of gasifying agent passage, in the present embodiment, as shown in fig. 6, spraying
Mouth arm 11 is formed with stream entrance 110 on the top surface of adpting flange 1, and stream entrance 110 is in top surface
The upper Concentric circle array being in illustrate that is preferably is arranged, and in this Concentric circle array, each concentric circular is all provided with
Have and be circumferentially spaced and radially aligned multiple stream entrances, to form many blowdown stream radially
Entry queue, the both sides of every blowdown stream entry queue are provided with radial direction air flue 13 with being respectively symmetrically.Referring to figure
6, six stream entrances 110, the material on three concentric circulars are wherein equally spacedly provided with each concentric circular
The all corresponding ground diameter of inflow entrance 110, to alignment, is formed with six blowdown stream entry queues altogether.Six discharge inflow entrances
Queue (i.e. six row's nozzle arm 11) and six shown in Fig. 9 to radial direction air flue 13 circumferentially arranged crosswise,
The often row nozzle arm 11 making radially aligned is both formed between corresponding a pair of radial direction air flue 13, with
It is easy to extend symmetrical inclination air flue 14 from radial direction air flue 13.This neat row of nozzle arm 11
Row, not only so that charging uniformly, is also convenient for the arrangement of following coolant guiding channel.
Because adpting flange 1 is directly installed on body of heater, it is heated big, for avoiding high temperature impaired or affecting work
Skill is reacted, and needs to carry out temperature control to adpting flange 1, i.e. cooling is processed.Wherein, can be by premix
Gasifying agent pipe 5 and main gasifying agent pipe joint 6 are passed through the oxygen of room temperature or low temperature, and adpting flange 1 is carried out
Gaseous state is lowered the temperature.Also can be at the bottom beyond the degasification agent outlet 141 of adpting flange 1 and stream outlet 111
Uniform refractory material on the region of face.In the present embodiment, additionally use liquid cooling measure.As Fig. 7
With shown in Fig. 8, gasification nozzle also includes cooling medium inlet attack 7 and cooling medium outlet connection 8,
Gasifying agent passage is formed at the bottom of adpting flange 1, is also formed with connecting cold in the top of adpting flange 1
But the coolant guiding channel of media outlet joint 8 and cooling medium inlet attack 7.Referring to Fig. 2 and Fig. 8
Shown, that is, circular adpting flange 1 includes top and bottom, is formed with coolant guiding channel, bottom in top
It is formed with gasifying agent passage in portion.
Coolant guiding channel includes multiple rows of radial passage 15 and the multiple tracks arranged in Concentric circle array shape
Circular arc passage 16, radial passage 15 radial communication each road circular arc passage 16.Similarly, cooling medium leads to
Road should be arranged around each nozzle arm 11 with effective temperature-reducing.Therefore, referring to Fig. 7, multiple tracks circular arc passage
The Concentric circle array that 16 Concentric circle arrays being arranged into are arranged into stream entrance 110 is diametrically each other
Stagger, multiple rows of radial passage 15 and many blowdown stream entry queue circumferentially offset one from another, so that each
It is equipped with coolant guiding channel on the surrounding wall of nozzle arm 11.
Preferably, the circular arc passage 16 shown in Fig. 7 includes Nei road circular arc passage and around this Nei road
The outer course circular arc passage of circular arc passage, outer course circular arc passage includes mutually separating and the first independent arc section
Passage and the second arc section passage, the first arc section passage (the outer course circular arc passage on right side) is close and connects
Logical cooling medium inlet attack 7, the second arc section passage (the outer course circular arc passage in left side) is close and connects
Logical cooling medium outlet connection 8, Nei road circular arc passage is entered with connecting cooling medium for complete circular arc passage
Mouth joint 7 and cooling medium outlet connection 8.So, the cooling entering from cooling medium inlet attack 7
Medium progressively can be filled to each coolant guiding channel in left side from the right side of in figure, and realizes cooling Jie
Matter effective flowing throughout, finally flows out from cooling medium outlet connection 8, reaches to adpting flange 1
Effective temperature-reducing effect.
It is in 60 tons of coal dust trial furnace that the gasification nozzle of the present invention is applied to a day output, carries out
Compliance test result.Wherein employing stream (i.e. gasified raw material) be coal dust (but not limited to this it is also possible to
It is water-coal-slurry etc.), it is that 10～90 μm of accountings reach more than 90% by the particle diameter that coal dust preparation system grinds
Coal dust.The vapor pressure of gasification reactor 100 is 4MPa, and temperature is 1400～1600 DEG C.Combustor
Using high chromite corundum sand lining, coal gas adopts water Quench, and lime-ash is discharged by dreg removing system, and coal gas is by swashing
Cold house top is discharged, and enters gas cleaning system, and coal gas discharges after importing torch burning after processing.Test
Result reflect, the coal gasification efficiency of carbon con version of coal dust up to 99%, effective ingredient (H2+CO) in synthesis gas
Up to 90%, cold gas efficiency is up to 80%.Compared to prior art, using the gasification nozzle of the present invention
Afterwards, reaction efficiency can be effectively improved, thus in the case of same production capacity, gasification reactor 100
Volume also can be substantially reduced, thus reducing equipment cost.
Describe the preferred embodiment of the present invention above in association with accompanying drawing in detail, but, the present invention does not limit
Detail in above-mentioned embodiment, in the range of the technology design of the present invention, can be to the present invention
Technical scheme carry out multiple simple variant, such as the inclination air flue 14 shown in Figure 10 also can be deformed into perpendicular
Straight air flue, forms in the exit of vertical air flue or sets up inclined lead air flue, can reach same inclination
The effect of air-flow；In addition the gasifying agent that also can be arranged symmetrically more than a pair around each stream outlet 111 goes out
Mouth 141, for example, can export 111 four or six gasification agent outlets 141 of circumferentially-spaced arrangement along stream,
These simple variant are all without departing from the design of the present invention, thus belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention no longer separately illustrates to various possible compound modes.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it equally should be considered as content disclosed in this invention.
Claims (17)
1. a kind of gasification nozzle is it is characterised in that this gasification nozzle includes adpting flange (1), stream
Conveying tube joint (3) and stream distributor, the bottom of described adpting flange (1) is installed on gasification reaction
On device (100), the top surface of described adpting flange (1) offer multiple as nozzle arm (11) and
The up/down perforation hole being spaced apart from each other, described stream distributor is arranged on described adpting flange (1)
On top surface and include the cylinder with interior barrel chamber, the area of the top surface entrance of described interior barrel chamber goes out less than bottom surface
Mouthful area so that from described top surface entrance enter stream can from described floor outlet disperse flow out,
Described top surface entrance connects described stream conveying tube joint (3), and described floor outlet butts up against multiple described
Nozzle arm (11), the described stream flowing out from the dispersion of described floor outlet can be by multiple described sprays
Mouth arm (11) enters in described gasification reactor (100).
2. gasification nozzle according to claim 1 is it is characterised in that this gasification nozzle also includes
Premix gasifying agent pipe (5), the bottom of the described interior barrel chamber of described stream distributor is formed with premix chamber
(A), so that by described pre- in described premix chamber (A) of described premix gasifying agent pipe (5) insertion
The gasifying agent that mixed gasifying agent pipe (5) is passed through and the described stream flowing out from the dispersion of described floor outlet are in institute
State mixing in premix chamber (A).
3. gasification nozzle according to claim 1 and 2 is it is characterised in that described stream is distributed
Device is including many as the cone cylinder (2) of described cylinder, porous supporting plate (21) and multiple spheroid (22)
Pore size distribution device, described porous supporting plate (21) be arranged on described cone cylinder (2) the bottom of cone cylinder intracavity and
It is covered with via, multiple described spheroids (22) are stacked in described porous supporting plate (21) on this porous supporting plate (21)
So that the stream entering from the addendum cone face entrance in described cone cylinder chamber can pass through in the described cone cylinder chamber of top
Spheroid gap between described spheroid (22) and described via from the base cone face in described cone cylinder chamber exports
Fall.
4. gasification nozzle according to claim 3 is it is characterised in that described premix chamber (A)
It is formed between described porous supporting plate (21) and the top surface of described adpting flange (1), described premix gas
In tangential direction insertion described premix chamber (A) of the internal perisporium along described cone cylinder chamber for the agent pipe (5),
The gasifying agent being passed through is enable to be mixed into eddy flow with described stream in described premix chamber (A).
5. gasification nozzle according to claim 3 is it is characterised in that described spheroid (22) is
Porcelain ball, the layering of described porcelain ball is stacked and is covered with the described cone cylinder chamber above the described porous supporting plate (21).
6. gasification nozzle according to claim 1 is it is characterised in that this gasification nozzle also includes
It is installed on the fixed seal head (4) on described adpting flange (1), this fixed seal head (4) is around described cylinder
Body arranges and this cylinder is fixed on the top surface of described adpting flange (1).
7. gasification nozzle according to claim 6 is it is characterised in that described fixed seal head (4)
It is formed with the pressurising chamber (B) around this periphery wall, this pressurising chamber and the periphery wall of described cylinder between
(B) it is connected with pressurising pipe.
8. gasification nozzle according to claim 7 it is characterised in that described pressurising pipe with described
The tail gas exhaust pipe of gasification reactor (100) is connected.
9. the gasification nozzle according to any one in claim 1～8 is it is characterised in that this gas
Change nozzle and also include main gasifying agent pipe joint (6), be formed with gasifying agent in described adpting flange (1) and lead to
Road, this gasifying agent passage includes gasification agent inlet and the shape being connected with described main gasifying agent pipe joint (6)
Become the multiple gasification agent outlets (141) on the bottom surface of described adpting flange (1), described nozzle arm
(11) stream outlet (111), described gasifying agent are formed with the bottom surface of described adpting flange (1)
Outlet (141) with described stream outlet (111) interval setting and makes described gasification agent outlets (141)
The stream that the gasifying agent stream flowing out is flowed out with described stream outlet (111) can be in described gasification reactor
(100) form head-on collision mixing in.
10. gasification nozzle according to claim 9 is it is characterised in that in described adpting flange (1)
Bottom surface on, each described stream outlet (111) corresponds at least one pair of described gasification agent outlets (141),
Two in gasification agent outlets described in each pair described gasification agent outlets (141) are arranged symmetrically in described stream
The both sides of outlet (111), the described gasifying agent stream flowing out from each described gasification agent outlets (141) is equal
Inclined downward towards the stream flowing out from described stream outlet (111).
11. gasification nozzles according to claim 9 are it is characterised in that described gasifying agent passage bag
Include the circumferential air flue (12) being sequentially communicated, radial direction air flue (13) and tilt air flue (14), described circumference
Air flue (12) is formed in the periphery edge of described adpting flange (1) and is connect with described main gasifying agent pipe
Head (6) is connected, and described radial direction air flue (13) extends radially inwardly from described circumference air flue (12),
Described inclination air flue (14) extends to described gasifying agent inclined downward from described radial direction air flue (13) and goes out
Mouth (141).
12. gasification nozzles according to claim 11 are it is characterised in that along described adpting flange
(1) from outside to inside radially, the area of the cross section of described radial direction air flue (13) is gradually reduced.
13. gasification nozzles according to claim 11 are it is characterised in that described nozzle arm (11)
Stream entrance (110), described stream entrance (110) are formed with the top surface of described adpting flange (1)
It is in that Concentric circle array is arranged on the top surface, in this Concentric circle array, each concentric circular is equipped with
Circumferentially it is spaced and radially aligned multiple described stream entrance, to form many discharges radially
Inflow entrance queue, the both sides often arranging described stream entry queue are provided with described radial direction air flue with being respectively symmetrically
(13).
14. gasification nozzles according to claim 13 it is characterised in that described circumference air flue (12)
Arrange and multi-section circular arc air flue independent of each other including circumferentially spaced, every section of described circular arc air flue is all connected with
There is described main gasifying agent pipe joint (6), every section of described circular arc air flue is respectively connected with multiple rows of described radial direction air flue
(13).
15. gasification nozzles according to claim 13 are it is characterised in that this gasification nozzle also wraps
Include cooling medium inlet attack (7) and cooling medium outlet connection (8), described gasifying agent passage is formed
It is also formed with connecting institute in the bottom of described adpting flange (1), the top of described adpting flange (1)
State the coolant guiding channel of cooling medium outlet connection (8) and described cooling medium inlet attack (7),
This coolant guiding channel includes multiple rows of radial passage (15) and the multiple tracks arranged in Concentric circle array shape
Circular arc passage (16), circular arc passage (16) described in each road of described radial passage (15) radial communication；
Wherein, the Concentric circle array that multiple tracks circular arc passage (16) is arranged into and described stream entrance (110)
The Concentric circle array being arranged into diametrically offsets one from another, multiple rows of described radial passage (15) and multiple rows of institute
State stream entry queue circumferentially to offset one from another.
16. gasification nozzles according to claim 15 are it is characterised in that described circular arc passage (16)
Outer course circular arc passage including Nei road circular arc passage with around this Nei road circular arc passage, described outer course circle
Arc passage includes mutually separating and the first independent arc section passage and the second arc section passage, and described first
Arc section passage is close and connects described cooling medium inlet attack (7), and described second arc section passage leans on
Near and connect described cooling medium outlet connection (8), described Nei road circular arc passage is complete circular arc passage
To connect described cooling medium inlet attack (7) and cooling medium outlet connection (8).
A kind of 17. gasification reactors are it is characterised in that described gasification reactor (100) includes right
Require the gasification nozzle described in 1～16 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474617.1A CN106433792B (en) | 2015-08-05 | 2015-08-05 | Gasification nozzle and gasification reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474617.1A CN106433792B (en) | 2015-08-05 | 2015-08-05 | Gasification nozzle and gasification reactor |
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| Publication Number | Publication Date |
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| CN106433792A true CN106433792A (en) | 2017-02-22 |
| CN106433792B CN106433792B (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510474617.1A Active CN106433792B (en) | 2015-08-05 | 2015-08-05 | Gasification nozzle and gasification reactor |
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| Country | Link |
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| CN (1) | CN106433792B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046181A (en) * | 2018-09-18 | 2018-12-21 | 中国恩菲工程技术有限公司 | Combined fluid distributor |
| CN109207203A (en) * | 2017-06-30 | 2019-01-15 | 神华集团有限责任公司 | Gasification furnace and its feeding device, burner and solid fuel dispenser |
| CN109575997A (en) * | 2019-01-31 | 2019-04-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of high-effective gas burner and its application method with fine coal premix |
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| CN2379707Y (en) * | 1999-06-15 | 2000-05-24 | 邓立新 | High temp. forced combustion burner using high viscosity fuel |
| CN102373094A (en) * | 2010-08-11 | 2012-03-14 | 通用电气公司 | Apparatus for removing heat from injection devices and method of assembling same |
| CN104804773A (en) * | 2014-01-27 | 2015-07-29 | 神华集团有限责任公司 | Gasification nozzle and gasifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4047901A (en) * | 1975-09-17 | 1977-09-13 | Metallgesellschaft Aktiengesellschaft | Feeder for coal-gasification reactor |
| CN2379707Y (en) * | 1999-06-15 | 2000-05-24 | 邓立新 | High temp. forced combustion burner using high viscosity fuel |
| CN102373094A (en) * | 2010-08-11 | 2012-03-14 | 通用电气公司 | Apparatus for removing heat from injection devices and method of assembling same |
| CN104804773A (en) * | 2014-01-27 | 2015-07-29 | 神华集团有限责任公司 | Gasification nozzle and gasifier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207203A (en) * | 2017-06-30 | 2019-01-15 | 神华集团有限责任公司 | Gasification furnace and its feeding device, burner and solid fuel dispenser |
| CN109207203B (en) * | 2017-06-30 | 2020-07-31 | 神华集团有限责任公司 | Gasification furnace and feeding device, burner and solid fuel distributor thereof |
| CN109046181A (en) * | 2018-09-18 | 2018-12-21 | 中国恩菲工程技术有限公司 | Combined fluid distributor |
| CN109046181B (en) * | 2018-09-18 | 2023-12-22 | 中国恩菲工程技术有限公司 | Combined fluid distributor |
| CN109575997A (en) * | 2019-01-31 | 2019-04-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of high-effective gas burner and its application method with fine coal premix |
| CN109575997B (en) * | 2019-01-31 | 2024-05-28 | 中国华能集团清洁能源技术研究院有限公司 | Efficient coal gasification burner with pulverized coal premixing function and application method thereof |
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| Publication number | Publication date |
|---|---|
| CN106433792B (en) | 2019-05-31 |
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