CN106753575A - Gasification nozzle - Google Patents
Gasification nozzle Download PDFInfo
- Publication number
- CN106753575A CN106753575A CN201611253097.2A CN201611253097A CN106753575A CN 106753575 A CN106753575 A CN 106753575A CN 201611253097 A CN201611253097 A CN 201611253097A CN 106753575 A CN106753575 A CN 106753575A
- Authority
- CN
- China
- Prior art keywords
- cooling water
- spoiler
- gasification nozzle
- passage
- turbulent flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 58
- 239000000498 cooling water Substances 0.000 claims abstract description 95
- 239000002826 coolant Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 210000003850 cellular structure Anatomy 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 2
- 230000001869 rapid Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 25
- 238000001816 cooling Methods 0.000 abstract description 16
- 239000003245 coal Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000003250 coal slurry Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
Abstract
The present invention provides a kind of gasification nozzle, including the inwardly projecting orifice for sequentially coaxially setting from inside to outside, middle part nozzle and external nozzles, the head of external nozzles is provided with the annular cooling water passage coaxial with external nozzles, annular cooling water passage is being respectively arranged with axisymmetric cooling water inlet and coolant outlet in the head side wall of external nozzles, so as to annular cooling water passage is symmetrically divided into first passage and second channel, inner member is respectively equipped with first passage and second channel, inner member includes the first spoiler, first spoiler includes at least one arc-like sheet, arc-like sheet extends in annular cooling water passage along water (flow) direction.Gasification nozzle of the invention, the cooling water flowed along annular cooling water passage by the first spoiler can be redistributed, make water-flow equation uniform, it is to avoid form recirculation zone, and then cause that the flow velocity of cooling water increases, improve overall cooling velocity and cooling effect.
Description
Technical field
The invention belongs to nozzle field, particularly gasification nozzle.
Background technology
As global oil price raises, industrial chemicals is prepared by coal and is increasingly paid close attention to by various countries.Wherein coal gasification
As the important component of clean coal technology, with leading position.Cheap coal is transformed into cleaning coal gas by it, can be used
In production chemical products.Coal Gasification Technology is one of key technology of Coal Chemical Industry, at present the gasification of country's coal chemical industry enterprises operation
Stove is most of to pass through gasifier system for synthesis gas with coal dust or water-coal-slurry as raw material.(65% is left by the coal of certain particle size for water-coal-slurry
It is right), water (34%) and a small amount of chemical addition agent are made, and are a kind of fuel slurries, can as oil pumping, atomization, storage and
Stabilization burning, its calorific value can replace fuel oil to be used for boiler, power station, industrial furnace and kiln equivalent to the half of fuel oil.Gasification
Gasification nozzle on stove plays an important role to coal gasification.Higher yet with gasification in-furnace temperature, existing gasification nozzle makes
There is problems with during：(1) cooling effect is bad；(2) easily there is cracking in burner end face；(3) nozzle service life is short.
The content of the invention
It is an object of the invention to provide a kind of gasification nozzle, the gasification nozzle good cooling results.
The present invention uses following technical scheme：
A kind of gasification nozzle, including inwardly projecting orifice, middle part nozzle and the external nozzles for sequentially coaxially setting from inside to outside, institute
The head for stating external nozzles is provided with the annular cooling water passage coaxial with the external nozzles, and the annular cooling water passage exists
Axisymmetric cooling water inlet and coolant outlet are respectively arranged with the head side wall of the external nozzles, so as to by institute
State annular cooling water passage and be symmetrically divided into first passage and second channel, be respectively equipped with the first passage and second channel
Inner member, the inner member includes the first spoiler, and first spoiler includes at least one arc-like sheet, and the arc-like sheet exists
Extend along water (flow) direction in the annular cooling water passage.
Preferably, the inner member also includes the turbulent flow block to current with turbulent flow, and the turbulent flow block is arranged at institute
State between the first spoiler and coolant outlet；The turbulent flow block is cellular structures.Preferably, first spoiler
Including multiple arcs piece, set gradually from inside to outside along the radial direction of the external nozzles between described multiple arcs piece.
Preferably, the arc-like sheet to central angle be 10-60 °.
Preferably, the number of arc-like sheet described in first spoiler is 2-6.
Preferably, the shape design of the turbulent flow block is in the arc shape being adapted with the annular cooling water passage.
Preferably, the turbulent flow block of the arc shape to central angle be 60-140 °.
Preferably, the inner member also includes the second spoiler, and second spoiler is arranged at the turbulent flow block and institute
State between coolant outlet.
Preferably, the gasification nozzle also includes cooling water inlet pipe and cooling water outlet pipe, the cooling water inlet pipe
It is wound in the external nozzles, and is connected on the cooling water inlet；The cooling water outlet pipe is wound in the outside
On nozzle, and it is connected on the coolant outlet.
The beneficial effects of the present invention are：
(1) gasification nozzle of the invention, due to the setting of the first spoiler 4 in annular cooling water passage 3, can be to passing through
First spoiler 4 is redistributed along the cooling water of flowing in annular cooling water passage 3, in the presence of the first spoiler 4,
Water-flow equation is uniform, can avoid the formation of recirculation zone, and then causes the flow velocity increase of cooling water, improve overall cooling velocity and
Cooling effect；
(2) setting of turbulent flow block 5, can carry out turbulent flow to the cooling water after redistribution, increase its turbulent velocity, reinforcing
The heat transfer effect of cooling water and annular cooling water conduit wall (i.e. external nozzles), reduces the wall surface temperature of gasification nozzle, balanced gas
Change the heat transfer effect of nozzle head end face Internal and external cycle, reduce the temperature difference of gasification nozzle head end Internal and external cycle, reducing its heat should
Power, prevents the head end of gasification nozzle to be cracked, and extends the service life of gasification nozzle.
Brief description of the drawings
Fig. 1 is gasification nozzle of the invention structural representation in one embodiment；
Fig. 2 is the transverse sectional view of the annular cooling water passage of gasification nozzle in Fig. 1；
Fig. 3 is the transverse sectional view of the annular cooling water passage of gasification nozzle in the prior art.
Specific embodiment
Technical scheme and its effect are described further below by way of specific embodiment.Following embodiment party
Formula is merely to illustrate present disclosure, and invention is not limited in following implementation methods or embodiment.Using design of the invention
The simple change carried out to the present invention is all in the scope of protection of present invention.
As shown in Figure 1, 2, gasification nozzle of the invention, including the inwardly projecting orifice 6, middle part for sequentially coaxially setting from inside to outside
Nozzle 7 and external nozzles 8, the head of the external nozzles 8 are provided with the annular cooling water passage coaxial with the external nozzles 8
3, the annular cooling water passage 3 is respectively arranged with axisymmetric cooling water in the head side wall positioned at the external nozzles 8
Import 1 and coolant outlet 2, it is described so as to the annular cooling water passage 3 is symmetrically divided into first passage and second channel
Inner member is respectively equipped with first passage and second channel, the inner member includes the first spoiler 4, first spoiler 4
Including at least one arc-like sheet 41, the arc-like sheet 41 extends in the annular cooling water passage 3 along water (flow) direction.
It is comparatively, interior because inner ring flow is shorter than outer ring flow during flow of cooling water in annular cooling water passage 3
The flow velocity for enclosing cooling water is fast, and the flow velocity of outer ring cooling water is slow, therefore can form recirculation zone at outer ring position.Recirculation zone is deposited
, water velocity below can be influenceed, so as to cause, cooling velocity is slow, cooling effect is poor.
Gasification nozzle of the invention, by setting the first spoiler 4 in the annular cooling water passage 3, can be to by the
One spoiler 4 is redistributed along the cooling water of flowing in annular cooling water passage 3, in the presence of the first spoiler 4, water
Flow distribution is uniform, can avoid the formation of recirculation zone, and then causes the flow velocity increase of cooling water, improves overall cooling velocity and cold
But effect.
In one embodiment, first spoiler 4 includes multiple arcs piece 41, preferably 2-6；Described multiple
Set gradually from inside to outside along the radial direction of the external nozzles 8 between arc-like sheet 41.
First spoiler 4 is made up of multiple arcs piece 41, can be several parts by cooling water redistribution, so contributes to
Further avoid forming recirculation zone because of the difference of Internal and external cycle water velocity, prevent the flow velocity of cooling water below from reducing, improve
The overall heat exchange speed and heat transfer effect of gasification nozzle.
In one embodiment, the arc-like sheet 41 to central angle be 10-60 ° (i.e. α in Fig. 2), preferably 30-
40 °, to ensure the redistribution effect to cooling water.
In one embodiment, the inner member also includes the turbulent flow block 5 to current with turbulent flow, the turbulent flow
Block 5 is arranged between first spoiler 4 and coolant outlet 2；The turbulent flow block 5 is cellular structures.
It is comparatively, interior because inner ring flow is shorter than outer ring flow during flow of cooling water in annular cooling water passage 3
The flow velocity that encloses cooling water is fast, good effect of heat exchange, temperature are low, and the flow velocity of outer ring cooling water is slow, heat transfer effect is poor, temperature is high, gasification
The Internal and external cycle temperature difference of the head end of nozzle is big, and then causes thermal stress big, is also easy to produce cracking.
The setting of turbulent flow block 5, can carry out turbulent flow to the cooling water after redistribution, increase its turbulent velocity, strengthen cold
But the heat transfer effect of water and annular cooling water conduit wall (i.e. external nozzles), reduces the wall surface temperature of gasification nozzle, equilibrium gasification
The heat transfer effect of nozzle head end face Internal and external cycle, reduces the temperature difference of gasification nozzle head end Internal and external cycle, reduces its thermal stress,
Prevent the head end of gasification nozzle to be cracked, extend the service life of gasification nozzle.
In one embodiment, described shape design is in the arc shape being adapted with the annular cooling water passage 3,
Turbulent flow is carried out with inner ring to the cooling water of outer ring for ensureing to annular cooling water passage 3, the heat transfer effect of balanced Internal and external cycle and is changed
Hot speed.
In one embodiment, the turbulent flow block 5 of the arc shape to central angle be 60-140 °, preferably 80-120 °
(i.e. β in Fig. 2), to ensure the turbulence effects to the cooling water in annular cooling water passage 3.
In one embodiment, the inner member also includes the second spoiler, and second spoiler is arranged at described
Between turbulent flow block 5 and the coolant outlet 2, the second turbulent flow block is cellular structures, with to through the turbulent flow of turbulent flow block 5
Cooling water afterwards is redistributed, and prevents from being formed the recirculation zone of small range, it is ensured that in whole annular cooling water passage 3
Outer ring water velocity is identical, improves the overall heat exchange speed and heat transfer effect of annular cooling water passage 3.
In one embodiment, second spoiler is similar or identical with the structure of the first spoiler 4, including multiple
Second arc-like sheet, preferably 2-6；Between described multiple second arc-like sheets along the external nozzles 8 radial direction from inside to outside according to
Secondary setting, to avoid forming recirculation zone because of the difference of Internal and external cycle water velocity.
In one embodiment, second arc-like sheet to central angle be 10-60 °, preferably 30-40 °, with ensure
To the redistribution effect through the cooling water after the turbulent flow of turbulent flow block 5.
In one embodiment, the inner member also includes second turbulent flow block spaced with turbulent flow block 5, to enter one
Step ensures the turbulence effects to the cooling water in annular cooling water passage 3.
In one embodiment, the second turbulent flow block is cellular structures.
In one embodiment, the shape design of the second turbulent flow block is in and is mutually fitted with the annular cooling water passage 3
The arc shape matched somebody with somebody, turbulent flow is carried out with inner ring to the cooling water of outer ring for ensureing to annular cooling water passage 3, and balanced Internal and external cycle is changed
Thermal effect and heat exchange rate.
In one embodiment, the second turbulent flow block of the arc shape to central angle be 60-140 °, preferably 80-
120 °, to ensure the turbulence effects to the cooling water in annular cooling water passage 3.
In one embodiment, the gasification nozzle also includes cooling water inlet pipe and cooling water outlet pipe, described cold
But water water inlet pipe is wound in the external nozzles 8, and is connected on the cooling water inlet 1；The cooling water outlet pipe is twined
It is around in the external nozzles 8, and is connected on the coolant outlet 2.
The setting of cooling water inlet pipe and cooling water outlet pipe, not only facilitates and the head of gasification nozzle is cooled down, also
The entirety of gasification nozzle can be cooled down, improve cooling effect.
The cooling procedure of the gasification nozzle of implementation method as shown in Figure 2 of the invention is as follows：
Cooling water is input into annular cooling water passage 3 through cooling water inlet pipe and cooling water inlet 1 successively, then through first
The effect of arc-like sheet 41 is redistributed in spoiler 4, then carries out turbulent flow to it through turbulent flow block 5, most afterwards through cooling
Water out 2 and cooling water outlet pipe are exported.
Embodiment 1
Gasification nozzle as shown in Figure 2, for gasification in, gasification temperature be 1300-1350 DEG C in the case of, make
After 40 days, blowing out inspection, burner end face has slight crack performance, but does not influence to be continuing with.Due to good cooling results,
The actual life of the burner was up to 60 days.
Gasification nozzle in prior art as shown in Figure 3 (compared with the gasification nozzle shown in Fig. 2, spray by the gasification shown in Fig. 3
Be not provided with as the spoiler and turbulent flow block of inner member in annular cooling-water duct 3 ' in mouth) cooling procedure it is as follows：
Cooling water is interior through cooling water inlet pipe and the input annular cooling water of cooling water inlet 1 ' passage 3 ' successively, then directly
Exported through coolant outlet 2 ' and cooling water outlet pipe.
Comparative example 1
In the case where use condition is same as Example 1, gasification nozzle as shown in Figure 3, after 40 days, burner end
Face serious cracking, it is impossible to be continuing with.
From the comparing of embodiment 1 and comparative example 1, under identical condition, gasification nozzle cooling effect of the invention
It is good, long service life, this absolutely proves the setting of the first spoiler and turbulent flow block, it is possible to increase the cooling effect of gasification nozzle,
Also making the temperature difference of Internal and external cycle on cooling end face simultaneously reduces, so as to extend the service life of gasification nozzle.
Claims (9)
1. a kind of gasification nozzle, including inwardly projecting orifice (6), middle part nozzle (7) and the outside spray for sequentially coaxially setting from inside to outside
Mouth (8), it is characterised in that the head of the external nozzles (8) is provided with the annular cooling water coaxial with the external nozzles (8)
Passage (3), the annular cooling water passage (3) is respectively arranged with axle pair in the head side wall positioned at the external nozzles (8)
The cooling water inlet (1) and coolant outlet (2) of title, lead to so as to the annular cooling water passage (3) is symmetrically divided into first
Road and second channel, are respectively equipped with inner member in the first passage and second channel, the inner member includes the first spoiler
(4), first spoiler (4) includes at least one arc-like sheet (41), and the arc-like sheet (41) is logical in the annular cooling water
Extend along water (flow) direction in road (3).
2. gasification nozzle according to claim 1, it is characterised in that the inner member also includes there is turbulent flow to make current
Turbulent flow block (5), the turbulent flow block (5) is arranged between first spoiler (4) and coolant outlet (2)；The rapids
Stream block (5) is cellular structures.
3. gasification nozzle according to claim 1 and 2, it is characterised in that first spoiler (4) is including multiple arcs
Piece (41), sets gradually from inside to outside between described multiple arcs piece (41) along the radial direction of the external nozzles (8).
4. gasification nozzle according to claim 3, it is characterised in that the arc-like sheet (41) to central angle be 10-
60°。
5. gasification nozzle according to claim 4, it is characterised in that arc-like sheet (41) in first spoiler (4)
Number is 2-6.
6. gasification nozzle according to claim 5, it is characterised in that the shape design of the turbulent flow block (5) be in it is described
The arc shape that annular cooling water passage (3) is adapted.
7. gasification nozzle according to claim 6, it is characterised in that the turbulent flow block of the arc shape to central angle be
60-140°。
8. the gasification nozzle according to any one of claim 1,2 or 4-7, it is characterised in that the inner member also includes
Second spoiler, second spoiler is arranged between the turbulent flow block (5) and the coolant outlet (2).
9. gasification nozzle according to claim 8, it is characterised in that the gasification nozzle also include cooling water inlet pipe and
Cooling water outlet pipe, the cooling water inlet pipe is wound in the external nozzles (8), and is connected to the cooling water inlet
(1) on；The cooling water outlet pipe is wound in the external nozzles (8), and is connected on the coolant outlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253097.2A CN106753575A (en) | 2016-12-30 | 2016-12-30 | Gasification nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253097.2A CN106753575A (en) | 2016-12-30 | 2016-12-30 | Gasification nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106753575A true CN106753575A (en) | 2017-05-31 |
Family
ID=58954308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611253097.2A Pending CN106753575A (en) | 2016-12-30 | 2016-12-30 | Gasification nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106753575A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252877A (en) * | 2017-08-09 | 2017-10-17 | 佛山市南海奔达模具有限公司 | Mould multiple spot cooling body and its hub mold of application |
| CN108528414A (en) * | 2018-07-02 | 2018-09-14 | 东北大学 | A kind of energy-saving brake rim radiator for heavy truck |
| CN109185876A (en) * | 2018-10-25 | 2019-01-11 | 中国船舶重工集团公司第七研究所 | The cooling jacket with heat exchange fin for coal gasification burner |
| CN110318726A (en) * | 2019-08-23 | 2019-10-11 | 新疆国利衡清洁能源科技有限公司 | Nozzle and continuous pipe device for underground coal gasification(UCG) |
| CN113856372A (en) * | 2021-09-30 | 2021-12-31 | 淮南鑫达实业有限责任公司 | Intelligent movable fog gun rail car device for open-air coal storage yard |
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| DE102010025761A1 (en) * | 2010-07-01 | 2012-01-05 | Siemens Aktiengesellschaft | Reactor for auto-thermal gasification of e.g. ash-containing fuel, has cooling jacket with shaft profile, and cooling space between pressure jacket and cooling jacket and filled with cooling fluid, where space is operated in boiled state |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252877A (en) * | 2017-08-09 | 2017-10-17 | 佛山市南海奔达模具有限公司 | Mould multiple spot cooling body and its hub mold of application |
| CN108528414A (en) * | 2018-07-02 | 2018-09-14 | 东北大学 | A kind of energy-saving brake rim radiator for heavy truck |
| CN109185876A (en) * | 2018-10-25 | 2019-01-11 | 中国船舶重工集团公司第七研究所 | The cooling jacket with heat exchange fin for coal gasification burner |
| CN110318726A (en) * | 2019-08-23 | 2019-10-11 | 新疆国利衡清洁能源科技有限公司 | Nozzle and continuous pipe device for underground coal gasification(UCG) |
| CN113856372A (en) * | 2021-09-30 | 2021-12-31 | 淮南鑫达实业有限责任公司 | Intelligent movable fog gun rail car device for open-air coal storage yard |
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Application publication date: 20170531 |