CN106635182A - Gasification furnace chilling ring - Google Patents
Gasification furnace chilling ring Download PDFInfo
- Publication number
- CN106635182A CN106635182A CN201611068803.6A CN201611068803A CN106635182A CN 106635182 A CN106635182 A CN 106635182A CN 201611068803 A CN201611068803 A CN 201611068803A CN 106635182 A CN106635182 A CN 106635182A
- Authority
- CN
- China
- Prior art keywords
- ring
- passage
- chilling
- distribution
- gasifying furnace
- 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.)
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Classifications
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- 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
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
- C10J3/845—Quench rings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a gasification furnace chilling ring, comprising an annular fixing plate, a channel ring, a distance ring, an inner ring, a distribution ring and a plurality of chilling water inlet pipes, wherein the channel ring is fixed at the bottom of the annular fixing plate, the distribution ring is provided with a plurality of spraying holes arrayed in a staggered way; the distance ring is arranged in the middle of the channel ring and divides the channel ring into a channel chamber on the outer side and a distribution chamber on the inner side, the bottom of the distance ring is in butt joint with a downcomer of a gasification furnace, the height of the distance ring is adjustable, a chilling water channel is formed between the top of the distance ring and the inner wall of the top of the channel ring, and a plurality of fixed-distance steel balls for controlling an annular space between the distribution ring and the distance ring are arranged between the distribution ring and the distance ring; the inner ring has a semi-pipe structure and is fixed on the distance ring, the inner ring is located in the distribution chamber, and the inner ring is provided with a plurality of holes for liquid passing and ventilating; the plurality of chilling water inlet pipes are arranged on the lower outer side of the channel ring and are communicated with the channel chamber; the upper surface of the inner side of the channel ring is evenly provided with a plurality of slag nails, and a refractory material is applied among the slag nails.
Description
Technical field
The present invention relates to the technical field of gasification furnace, more particularly, is related to a kind of chilling ring of gasifying furnace.
Background technology
Gasification furnace is the key equipment in coal gasification apparatus, although the gasification technology of different schools in technological process not
Together, but the running environment of its key equipment gasification furnace is all poor, in being in the adverse circumstances of HTHP high corrosion.Coal dust
Or water-coal-slurry generate after gasification furnace vaporizer imperfect combustion after 1500 DEG C or so of high-temperature synthesis gas and slag under be advanced into
Shock chamber, the effect of shock chamber is exactly that high-temperature synthesis gas and slag are lowered the temperature and gas-slag separation is realized.
Vaporizer is exactly chilling ring with the boundary of shock chamber, and the effect of chilling ring includes：Firstth, rapid cooling down high-temperature is closed
Into gas and slag；Secondth, form moisture film to flow down along down-comer and protect down-comer not to be burned, so that synthesis gas can be at one
Cool down in the environment of relative closure and gas-slag separation.Therefore, the quality of chilling ring and life-span directly influence gasification
The normal operation of stove.
Existing chilling ring of gasifying furnace structure is substantially by heavy forging, chilling ring on the outside of chilling ring outer endless tube, interior endless tube, Quench
The part such as liquid inlet tube constitutes.The shortcoming of prior art is：
1st, outside heavy forging is typically by the Ni-based forging process for fuel of high temperature resistant and major part requires import forging stock.The material purchases cycle
It is long, it is expensive, and user's spare part is not easy to, blowing out maintenance time is longer.
2nd, the passage ring cavity room processing difficulties of outside heavy forging forging, precision is difficult to ensure.
3rd, outer endless tube is due to internal structure reason, it is impossible to which integral installation is matched somebody with somebody, and during processing assembling globality can not be realized, needs to cut open
Into several sections or upper and lower two pieces carry out group weldering, assembly precision is affected, or even cause local to form moisture film, down-comer shielding failure
And down-comer is burnt out, affect the normal operation of gasification furnace.
4th, existing distribution rings are uniform using single aperture, and the current of ejection are in the form of a column.If part open misalign or
There is no entirely on the center during assembling, or the current distribution pressure of each aperture is inconsistent, all without the water that formation is tight in down-comer
Curtain so that can not fully be carried out mass-and heat-transfer exchange.
5th, high-temperature synthesis gas and slag directly wash away chilling ring, easily make the outer endless tube of chilling ring wash away perforation, and cracking deforms,
In turn result in spraying effect not reaching, water curtain can not form, the moisture film on down-comer can not be formed, Quench failure.
The content of the invention
In order to solve problems of the prior art, it is an object of the invention to provide a kind of simple structure and processing, peace
Dress maintenance all very easily chilling ring of gasifying furnace.
The invention provides a kind of chilling ring of gasifying furnace, the chilling ring includes ring-type fixing plate, passage ring, spacer ring, interior
Ring, distribution rings and some chilled water inlet tubes,
The passage ring is fixed on the bottom of ring-type fixing plate, the distribution rings be from the passage ring under cutting under
Interior a quarter ring and again weldering are back to what is formed on the passage ring, and the spray of some row's Heterogeneous Permutations is provided with the distribution rings
Drench hole；
The spacer ring is arranged on the middle part of passage ring and passage ring is separated into the passage room in outside and the distributor chamber of inner side,
The bottom of the spacer ring dock with the down-comer of gasification furnace and the spacer ring height adjustable, the top of the spacer ring and passage
Quench aquaporin is formed between the top inner wall of ring, be provided between the distribution rings and spacer ring several for control be distributed
The spacing steel ball of annular space between ring and spacer ring；
The inner ring has and half tubular construction and is fixed on the spacer ring, the inner ring be located in the distributor chamber and
Several logical liquid passages are provided with inner ring；
The some chilled water water inlet pipes are arranged on the lower outside of passage ring and connect with the passage room；
Wherein, several slag nails have been evenly arranged in the inside upper surface of the passage ring, have also been laid between slag nail resistance to
Fiery material.
One embodiment of chilling ring of gasifying furnace of the invention, the ring-type fixing plate is by doughnut-shaped steel plate overall processing
Form.
One embodiment of chilling ring of gasifying furnace of the invention, the passage ring and distribution rings are by whole by one
The domain is justified and is welded into body steel tube bending school, to eliminate and reprocess out spray apertures after stress and integrally cut after spray apertures are machined
Cut off and weld again after distribution rings formation.
One embodiment of chilling ring of gasifying furnace of the invention, is provided with the spray of three row's Heterogeneous Permutations in the distribution rings
Hole is drenched, the spray hole number for often arranging spray apertures is equal, the spray apertures are interior big outer little bellmouth.
One embodiment of chilling ring of gasifying furnace of the invention, center line and the gasification furnace of the three rows spray apertures
The angle of down-comer bus is respectively 80 °, 65 ° and 45 °.
One embodiment of chilling ring of gasifying furnace of the invention, the slag nail is cylindrical slag nail, the fire proofed wood
Expect for Tercod.
One embodiment of chilling ring of gasifying furnace of the invention, the distribution spacing of the slag nail is 25～30mm.
One embodiment of chilling ring of gasifying furnace of the invention, the quantity of the chilled water water inlet pipe be 4～6 and
A diameter of 80～100mm.
In one embodiment of chilling ring of gasifying furnace of the invention, the internal diameter of the spacer ring and the down-comer of gasification furnace
Footpath is equal.
Compared with existing chilling ring of gasifying furnace, the chilling ring of gasifying furnace of the present invention has the following advantages：
1st, material all forms that the cost of material is low by the weldering of plate pipe group, it is easy to gets the raw materials ready, process that simple, the maintenance replacement cycle is short and section
About maintenance furnace outage time.
2nd, passage ring and distribution rings are that assembling is simple and precision is readily obtained guarantor by an overall endless tube machining
Card.
3rd, the spray apertures in distribution rings adopt bellmouth uniform and Heterogeneous Permutation, advantageously form atomization water curtain, can be with height
Warm synthesis gas is fully exchanged heat, effectively quick that high-temperature synthesis gas and slag are lowered the temperature.
4th, refractory material is laid on the inside of passage ring and dross forms protective layer in running, exempt from can chilling ring
Directly washing away in high-temperature synthesis gas, is effectively protected chilling ring and extends the life-span of chilling ring.
5th, passage ring and distribution rings are monolithically fabricated two chambers surface is smooth and streamlined structure, is declining inside pipe wall
The moisture film of formation is uniform, and so as to not result in down-comer local without moisture film protection, dry combustion method damages down-comer.
Description of the drawings
Fig. 1 shows the structural representation of chilling ring of gasifying furnace according to an exemplary embodiment of the present invention.
Fig. 2A shows the spray apertures arrangement in chilling ring of gasifying furnace according to an exemplary embodiment of the present invention in distribution rings
Mode, Fig. 2 B show the A-A views in Fig. 2A.
Description of reference numerals：
1- ring-type fixing plates, 2- passage rings, 3- spacer rings, 4- inner ring, 5- distribution rings, 6- chilled water inlet tubes, 7- spacing steel
Ball, 8- slags nail, 9- spray apertures, 10- passages room, 11- distributor chambers.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically is chatted
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
The structure and principle of chilling ring of gasifying furnace of the present invention will be described in detail below.
Fig. 1 shows the structural representation of chilling ring of gasifying furnace according to an exemplary embodiment of the present invention, and Fig. 2A shows
Spray apertures arrangement mode in chilling ring of gasifying furnace according to an exemplary embodiment of the present invention in distribution rings, Fig. 2 B show Fig. 2A
In A-A views.
Such as Fig. 1, exemplary embodiment of the invention, the chilling ring of gasifying furnace includes ring-type fixing plate 1, passage ring
2nd, spacer ring 3, inner ring 4, distribution rings 5 and some chilled water inlet tubes 6.The chilling ring of the present invention is not only adjusted to structure
It is whole, also processing mode is optimized, will be specifically described below.
According to the present invention, passage ring 2 is fixed on the bottom of ring-type fixing plate 1, and distribution rings 5 are from passage ring 2 under cutting
Lower interior a quarter ring and again weldering be back on passage ring 2 formed, the spray of some row's Heterogeneous Permutations is provided with distribution rings 5
Hole 9.
Wherein, ring-type fixing plate 1 is the supporting part of whole chilling ring, and the present invention is formed using doughnut-shaped steel plate overall processing,
Therefore without import blank, low cost, easy processing and easily get the raw materials ready.Meanwhile, passage ring 2 and overall being rolled by steel pipe of distribution rings 5 and
Into, self-assembling formation streamline flow passages and inner surface need not be processed；Also, passage ring 2 and distribution rings 5 are performed integrally and roll, eliminate
Stress, complete to spray machining after hole machined and cut out distribution rings 5, after complete spacer ring 3 to be installed, then weld back distribution rings 5 are overall
To on passage ring 2 so that precision is guaranteed；Further, since the spray apertures benchmark in distribution rings 5 is consistent, be not in spray
The situation that hole perforate is misaligned, after assembly precision is guaranteed, the water film thickness and uniformity that chilling ring is formed also can be protected
Card, so as to not result in down-comer local without moisture film protection, dry combustion method damages down-comer.According to one embodiment of present invention,
Passage ring 3 and distribution rings 5 are by justifying and being welded into the domain by an overall steel tube bending school, to eliminate and reprocess out spray after stress
Drench hole and weld formation under integral cutting after distribution rings again after spray apertures are machined.
Spacer ring 3 is arranged on the middle part of passage ring 2 and passage ring 2 is separated into the passage room 10 in outside and the distributor chamber of inner side
11, the bottom of spacer ring 3 dock with the down-comer (not shown) of gasification furnace and spacer ring 3 height adjustable, the top of spacer ring 3 with it is logical
Quench aquaporin is formed between the top inner wall of road ring 2.In the case where Quench discharge is constant, can adjust every 3 rings with it is logical
Gap between road ring 2 is spacer ring highly adjusting the Quench discharge in distributor chamber 11.Arrange between distribution rings 5 and spacer ring 3
There are several for controlling the spacing steel ball 7 of annular space between distribution rings 5 and spacer ring 3, namely spacing steel ball 7 can be used for distribution rings
Itself and the spacing uniformity between spacer ring 3 are kept during 5 welding, is conducive to forming uniform moisture film on spacer ring 3, the thickness of moisture film
Degree is then determined by the annular space size between distribution rings 5 and spacer ring 3.Also, the decline bore phase of the internal diameter of spacer ring 3 and gasification furnace
Deng.
Inner ring 4 has half tubular construction and is fixed on spacer ring 3, and inner ring 4 is located in distributor chamber 11 and is provided with inner ring 4
Several logical liquid passages.In fixed inner ring 4, its top half can be welded, the latter half then can discontinuously weld
It is connected on spacer ring 3.Inner ring 4 can adjust the size of distributor chamber 11, and the size of inner ring 4 specifically can be determined according to flow.
Some chilled water water inlet pipes 6 are arranged on the lower outside of passage ring 2 and connect with passage room 10, with chilling ring
The chilled water of cooling is provided, chilled water is entered after passage room 10 from chilled water water inlet pipe 6, by the Quench at the top of spacer ring 3
Aquaporin is entered in distributor chamber 11, after the distribution of inner ring and the spray of distribution rings, by between distribution rings 5 and spacer ring 3
Annular space flow on spacer ring 3 and down-comer and form moisture film.Wherein, the quantity and size of chilled water inlet tube 6 is by chilled water demand
Amount determines that for example, the quantity of chilled water water inlet pipe 6 is 4～6 and a diameter of 80～100mm.
Wherein, several slag nails 8 have been evenly arranged in the inside upper surface of passage ring 2, between slag nail 8 fire resisting has also been laid with
Material.In the running of chilling ring, one layer of slag can be formed in refractory surface, be commonly called as " dross ".Dross layer and resistance to
Chilled water triple protection chilling ring in fiery material layer and passage ring, enables to chilling ring operating temperature and substantially reduces and exempt from
Directly washed away by high-temperature synthesis gas and slag, substantially increase the service life of chilling ring.Preferably, slag nail 8 is cylinder
Slag is followed closely, and refractory material is Tercod, and the distribution spacing of slag nail 8 is 25～30mm.
Additionally, the present invention is also optimized to the spray pore structure of distribution rings.As shown in Figure 2 A and 2 B, distribution rings 5
On be provided with the spray apertures 9 of three row's Heterogeneous Permutations, the spray hole number for often arranging spray apertures 9 is equal, and spray apertures 9 are interior big outer little
Bellmouth.The spray apertures 9 of this spline structure have the effect of spray atomizing, can make high-temperature synthesis gas and melt abundant with chilled water
Contact, quick effective temperature-reducing.According to one embodiment of present invention, the down-comer of the center line of three row's spray apertures 9 and gasification furnace
The angle of bus is respectively 80 °, 65 ° and 45 °.
Assembling the present invention chilling ring of gasifying furnace when, it should be noted that below some：1st, chilling ring should be rolled integrally, strict control
There should not be gauffer and subside in chilling ring processed and its circularity in ring cavity section, ring cavity.2nd, roll and complete that after the circle of school stress should be eliminated
Carry out the machining of distribution rings again afterwards.3rd, to ensure chill effect, processing and the installation accuracy of strict controlled chilling ring are answered.
The chilling ring of gasifying furnace that the present invention is provided, low price, simple structure, installation easy to process and maintenance and outward appearance letter
It is about attractive in appearance.
By taking 3800 times water-filling Quench nozzle coal slurry gasifiers of internal diameter φ as an example：
Chilling ring is welded by ring-type fixing plate 1 and passage ring 2, and spacer ring 3 is divided into passage room 10 and distribution passage ring 3
Room 11, outside is passage room, and the size sum of chilled water inlet pipeline 6 need to be considered according to traffic requirement and Quench water consumption
Measure, usually the inlet tube of 4～6 DN80～DN100.Spacer ring internal diameter is consistent with bore is declined, and spacer ring is docked with down-comer
After the completion of should the polishing of weld bond inwall is smooth, so that the moisture film that formed in spacer ring inwall is flowed down along down-comer is smooth.In distribution rings 5
Three row's spray apertures are provided with, round Heterogeneous Permutation, three round center lines are respectively 80 °, 65 ° and 45 ° with the angle of down-comer bus,
The big end of taper of each spray apertures is φ 8mm, and small end is φ 6mm.Inner ring 4 is used to adjust the size of distributor chamber 11, need to be according to flow
It is determined that.1/4 circuit outer wall of the passage ring first half equably stamp slag nail 8, slag nail for cylinder, slag nail distribution spacing about 25～
30mm, then lays therebetween one layer of Tercod.By the improvement and change of some of the above structure, from material into
Originally, the manufacture many-side such as difficulty of processing and chill effect is improved.
The invention is not limited in aforesaid specific embodiment.The present invention is expanded to and any in this manual disclosed
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (9)
1. a kind of chilling ring of gasifying furnace, it is characterised in that the chilling ring include ring-type fixing plate, passage ring, spacer ring, inner ring,
Distribution rings and some chilled water inlet tubes,
The passage ring is fixed on the bottom of ring-type fixing plate, and the distribution rings are lower interior four under cutting from the passage ring
/ mono- ring and again weldering are back to what is formed on the passage ring, and the spray of some row's Heterogeneous Permutations is provided with the distribution rings
Hole；
The spacer ring is arranged on the middle part of passage ring and passage ring is separated into the passage room in outside and the distributor chamber of inner side, described
The bottom of spacer ring dock with the down-comer of gasification furnace and the spacer ring height adjustable, the top of the spacer ring and passage ring
Quench aquaporin is formed between top inner wall, be provided between the distribution rings and spacer ring several for control distribution rings with
The spacing steel ball of annular space between spacer ring；
The inner ring has half tubular construction and is fixed on the spacer ring, and the inner ring is located in the distributor chamber and inner ring
On be provided with several logical liquid passages；
The some chilled water water inlet pipes are arranged on the lower outside of passage ring and connect with the passage room；
Wherein, several slag nails have been evenly arranged in the inside upper surface of the passage ring, between slag nail fire proofed wood has also been laid with
Material.
2. chilling ring of gasifying furnace according to claim 1, it is characterised in that the ring-type fixing plate is by doughnut-shaped steel plate entirety
Process.
3. chilling ring of gasifying furnace according to claim 1, it is characterised in that the passage ring and distribution rings are by by
The domain is justified and is welded into root entirety steel tube bending school, eliminates and spray apertures and whole after spray apertures are machined are reprocessed out after stress
Formation is welded again after the lower distribution rings of body cutting.
4. chilling ring of gasifying furnace according to claim 1, it is characterised in that three row's Heterogeneous Permutations are provided with the distribution rings
Spray apertures, the spray hole number for often arranging spray apertures is equal, and the spray apertures are interior big outer little bellmouth.
5. chilling ring of gasifying furnace according to claim 4, it is characterised in that the center line of the three rows spray apertures and gasification
The angle of the down-comer bus of stove is respectively 80 °, 65 ° and 45 °.
6. chilling ring of gasifying furnace according to claim 1, it is characterised in that the slag nail is cylindrical slag nail, described resistance to
Fiery material is Tercod.
7. chilling ring of gasifying furnace according to claim 1, it is characterised in that the distribution spacing of the slag nail is 25～
30mm。
8. chilling ring of gasifying furnace according to claim 1, it is characterised in that the quantity of the chilled water water inlet pipe is 4～6
Root and a diameter of 80～100mm.
9. chilling ring of gasifying furnace according to claim 1, it is characterised in that the internal diameter of the spacer ring and the decline of gasification furnace
Bore is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611068803.6A CN106635182B (en) | 2016-11-29 | 2016-11-29 | Chilling ring of gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611068803.6A CN106635182B (en) | 2016-11-29 | 2016-11-29 | Chilling ring of gasification furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106635182A true CN106635182A (en) | 2017-05-10 |
| CN106635182B CN106635182B (en) | 2023-03-21 |
Family
ID=58813010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611068803.6A Active CN106635182B (en) | 2016-11-29 | 2016-11-29 | Chilling ring of gasification furnace |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059981A (en) * | 2017-12-28 | 2018-05-22 | 哈尔滨锅炉厂有限责任公司 | Rough coal air cooling and purifier |
| CN111560271A (en) * | 2020-04-29 | 2020-08-21 | 哈尔滨锅炉厂有限责任公司 | Novel chilling ring structure for coal water slurry gasification furnace |
| CN113369797A (en) * | 2021-06-11 | 2021-09-10 | 东方电气集团东方锅炉股份有限公司 | Repair method for water film gap of semi-ring pipe outside chilling ring of gasification furnace |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059981A (en) * | 2017-12-28 | 2018-05-22 | 哈尔滨锅炉厂有限责任公司 | Rough coal air cooling and purifier |
| CN111560271A (en) * | 2020-04-29 | 2020-08-21 | 哈尔滨锅炉厂有限责任公司 | Novel chilling ring structure for coal water slurry gasification furnace |
| CN111560271B (en) * | 2020-04-29 | 2021-07-20 | 哈尔滨锅炉厂有限责任公司 | Novel chilling ring structure for coal water slurry gasification furnace |
| CN113369797A (en) * | 2021-06-11 | 2021-09-10 | 东方电气集团东方锅炉股份有限公司 | Repair method for water film gap of semi-ring pipe outside chilling ring of gasification furnace |
| CN113369797B (en) * | 2021-06-11 | 2022-05-31 | 东方电气集团东方锅炉股份有限公司 | Repair method for water film gap of semi-ring pipe outside chilling ring of gasification furnace |
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| CN106635182B (en) | 2023-03-21 |
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