CN209428472U - Useless pot Quench integral type water wall gasifier - Google Patents
Useless pot Quench integral type water wall gasifier Download PDFInfo
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- CN209428472U CN209428472U CN201821862773.0U CN201821862773U CN209428472U CN 209428472 U CN209428472 U CN 209428472U CN 201821862773 U CN201821862773 U CN 201821862773U CN 209428472 U CN209428472 U CN 209428472U
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- vaporizer
- useless pot
- slag
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model provides a kind of useless pot Quench integral type water wall gasifier, which includes vaporizer, scum pipe, useless pot and the scrubbing-cooling chamber of metal pressure-bearing shell and its internal setting.The gasification furnace can efficiently separate slag and high-temperature synthesis gas, avoid high-temperature slag from entering useless pot, greatly improve the reliability of useless pot.Using useless pot and Quench combined process flow when utility model works, i.e., the useless pot of high-temperature synthesis gas warp of gasification furnace is cooled to 600 DEG C or so out, has then recycled most of sensible heat in coal gas of high temperature to required temperature with water Quench.Compared to simple Quench type gasification furnace, gasification furnace and gasification process provided by the utility model improve about 10% efficiency of energy utilization, keep the energy-saving advantage of gasification process more obvious.
Description
Technical field
The utility model relates to Coal Gasification Technology fields, and in particular to a kind of useless pot Quench integral type water wall gasifier.
Background technique
With the rapid development of the national economy, energy utilization rate brought by the fossil energies such as utilization coal that China faces
Problem and environmental problem are increasingly serious, are badly in need of researching and developing efficient, clean coal utilization technology.Develop efficient, clean gas
Fluidized bed Coal Gasification Technology is of great significance to propulsion coal high-efficiency clean utilization.
Coal gasification course carries out at high temperature, and rationally recycling synthesis gas high temperature sensible heat is to improve coal gasification whole efficiency
Important link.Based on the demand for the subsequent different product that gasifies, and the difference of recycling coal gas of high temperature sensible heat process program, at present
Gasification process specifically include that chilling process and pot destroying process.The former production particularly suitable for coal-based chemicals, the latter are more suitable
It generates electricity together in IGCC.
It is current in the prior art, what chilling process and pot destroying process were often all single use, chilling technology is the most
Common, for the coal gas of high temperature that vaporizer can be come out from 1200~1600 DEG C or so Quench to 200 DEG C or so, equipment is simple, throws
Money saves, but energy recovery efficiency is low.Waste heat boiler can will go out vaporizer coal gas of high temperature and will be cooled to by 1200~1600 DEG C or so
300 DEG C or so, heat therein is recycled, and recovery efficiency is high, but defect is, equipment is huge, and investment is high, and is gone out useless
Water-gas ratio in the synthesis gas of heat boiler is relatively low, it is more difficult to reach the technique requirement for being directly entered shift conversion step.
Therefore, new heat recovery technology is developed, is those skilled in the art's urgent need to solve the problem.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of both chilling process and pot destroying process of being provided simultaneously with
Advantage, and water wall gasifier and gasification process the shortcomings that both overcome.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of useless pot Quench integral type water cooling
Wall gasification furnace, it is characterised in that: vaporizer, scum pipe, useless pot including metal pressure-bearing shell and its internal coaxial arrangement and wash
Wash cooling chamber；Vaporizer is set to above the pot that gives up, and the top for the useless pot outside water-cooling wall being arranged outside the bottom of vaporizer and useless pot
Portion's connection；
Scum pipe is set to inside useless pot, and the internal diameter of scum pipe is greater than the first slag-drip opening outer diameter and the scum pipe top of vaporizer
Highest point is optionally greater than the minimum point of the first slag-drip opening of vaporizer, and slag chilling ring is arranged in the middle and upper part of scum pipe and the slag swashs
Cold ring is lower than the minimum point of the first slag-drip opening equal to vaporizer；
Scrubbing-cooling chamber is set to below useless pot, and scum pipe extends downward into scrubbing-cooling chamber bottom；Scrubbing-cooling chamber top
Equipped with synthesis gas chilling ring, wash cooling chamber interior is equipped with down-comer, connects at the top of the down-comer with the synthesis gas chilling ring
It connects, and the minimum point of the down-comer is higher than the minimum point of the scum pipe；Scrubbing-cooling chamber top is equipped with syngas outlet, bottom
Portion is equipped with the second slag-drip opening.
Preferably, the vaporizer is water wall structure, the top of the vaporizer be arranged a top burner and/or
Multiple side burners are arranged in same level on the cylinder lateral wall of the vaporizer, and the ratio of height to diameter h0/D0 of the vaporizer is 2.5
~4.5.
Preferably, water-cooling wall is shell and tube water-cooling wall outside the useless pot；The useless pot is coiled water wall structure, more
It is coaxially arranged to enclose coil wall.
Preferably, the scum pipe is water wall structure, and the attached heat-barrier material in water-cooling wall outer surface；The heat-insulated material
Material is silicon carbide or ceramic fibre；The water wall structure is shell and tube water-cooling wall, and all tubulation tops are internally curved
Song, bending radius are more than or equal to the diameter of single tubulation, and the slag chilling ring is connected to tubulation upper end.
Preferably, the internal diameter D1 of the scum pipe is 1.2~2.8 times of the first slag-drip opening outside diameter d of the vaporizer；
First slag-drip opening difference in height h1 of the scum pipe and vaporizer is 0~2m；The slag chilling ring and vaporizer
First slag-drip opening difference in height h2 is 0~3m；
The difference in height h3 of the down-comer and scum pipe is 1~5m, and the decline bore is the 1.1 of deslagging pipe outside diameter
~1.5 times.
Preferably, cavity is formed between the vaporizer, useless pot outside water-cooling wall and metal pressure-bearing shell, the cavity
It is laid with heat-insulating material on the inside of metal pressure-bearing shell, when gasifier operation is full of and vaporizer operating pressure phase in the cavity
When inert gas；
Water-cooling wall and vaporizer junction are equipped with for balancing the pressure between vaporizer and the cavity outside the useless pot
The balance hole of power.
Preferably, the vaporizer operating pressure is 0~15MPaG.
Above-mentioned useless pot Quench integral type water wall gasifier is in use, step are as follows: feeds carbon-containing fuel and gasifying agent
To vaporizer, the synthesis gas and slag cocurrent for generation of gasifying are downwardly into scum pipe, and most of synthesis gas passes through vaporizer
Annular space between first slag-drip opening and scum pipe enters useless pot, melts slag and small part synthesis gas enters after scum pipe by slag chilling ring
Quench, the slag that melts after Quench fall under gravity into scrubbing-cooling chamber bottom, and the small part synthesis gas after Quench is along scum pipe
It turns back upwards after reaching the liquid level of scrubbing-cooling chamber down, mixing with most of synthesis gas of non-Quench makes synthesis gas tentatively cool down
Enter useless pot afterwards, all synthesis gas are further synthesized the cooling of gas chilling ring after useless pot continues lowered temperature reclamation heat, then
Scrubbing-cooling chamber is entered by down-comer, synthesis gas is discharged by the syngas outlet on scrubbing-cooling chamber top after primary wash, is swashed
It is discharged after the water-bath of the washed cooling chamber bottom of solid lime-ash after cold by the second slag-drip opening of scrubbing-cooling chamber bottom.
Preferably, the carbon-containing fuel is solid powdery or liquid slurry phase shape, and the gasifying agent is oxygen or oxygen-enriched sky
The mixture of gas or any one of oxygen and oxygen-enriched air and superheated steam.
Preferably, the temperature of synthesis gas is 1200~1600 DEG C derived from vaporizer；Before the synthesis gas enters useless pot
Temperature be 900~1100 DEG C, the synthesis gas is 500~700 DEG C by useless pot temperature after cooling；From scrubbing-cooling chamber
The temperature of the synthesis gas of syngas outlet discharge is 150~250 DEG C.
Compared with prior art, the utility model has the following beneficial effects:
(1) useless pot Quench integral type water wall gasifier provided by the utility model is suitable for using carbon-containing fuel as raw material
Synthesis gas preparation process, water-cooling wall and useless pot can be with by-product high-pressure steams, and the synthesis gas water-gas ratio after Quench is converted close to CO
Requirement to water-gas ratio.The gasification furnace has recycled high-temperature synthesis gas major part thermal energy, energy utilization rate height, is suitable for modern coalification
Work technique and IGCC power generation system.
(2) synthesis gas may be implemented in useless pot Quench integral type water wall gasifier provided by the utility model, scum pipe
With the separation for melting slag, useless pot slagging is avoided, while reducing the synthesis gas temperature into useless pot to a certain extent, is improved greatly
The reliability of useless pot.
Detailed description of the invention
Fig. 1 is the useless pot Quench one body swimming cold wall gasification furnace structure schematic diagram that embodiment 1 provides；
Fig. 2 is useless pot top view；
Description of symbols:
1- metal pressure-bearing shell, 2- vaporizer, 3- give up water-cooling wall outside pot, 4- scum pipe, and 5- gives up pot, 6- wash cooling
Room, the top 21- burner, the side 22- burner, 23- vaporizer water-cooling wall water inlet, 24- vaporizer water-cooling wall lower part header, 25-
Vaporizer water-cooling wall top header, 26- vaporizer water-cooling wall water outlet, the useless pot outside water-cooling wall water inlet of 31-, 32- give up outside pot
Portion's water screen header, the useless pot outside water-cooling wall water outlet of 33-, 41- scum pipe Quench water inlet, 42- scum pipe Quench water manifold,
43- scum pipe water-cooling wall elbow, 44- slag chilling ring, 51- give up pot water inlet, and 52- gives up pot lower part header, and 53- gives up pot top connection
Case, 54- give up pot water outlet, 61- down-comer, 62- synthesis gas Quench water inlet, 63- synthesis gas chilling ring, and 64- synthesis gas goes out
Mouthful, the outlet of the Heisui River 65-, the outlet of 66- slag, 67- positive stop strip.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.
Embodiment 1
Fig. 1 is useless pot Quench one body swimming cold wall gasification furnace structure schematic diagram provided in this embodiment, and the useless pot swashs
Cold integral type water wall gasifier includes the vaporizer 2 of metal pressure-bearing shell 1 and its internal setting, scum pipe 4, useless pot 5 and washes
Cooling chamber 6 is washed, metal pressure-bearing shell 1, vaporizer 2, scum pipe 4, useless pot 5 and scrubbing-cooling chamber 6 are coaxially disposed.
Vaporizer 2 is water wall structure, and water-cooling wall is separately provided, and passes through its water inlet pipe and vaporizer water-cooling wall lower part header
24 are fixed on inside metal pressure-bearing shell 1, and when 2 high-temperature operation of vaporizer can upward free wxpansion.
It is more that same level setting on a top burner 21 and/or 2 cylinder lateral wall of vaporizer is arranged in the top of vaporizer 2
A side burner 22, vaporizer water-cooling wall water inlet 23 are connect by water pipe with vaporizer water-cooling wall lower part header 24, vaporizer
Water-cooling wall top header 25 is connect by water pipe with vaporizer water-cooling wall water outlet 26.
It connects at the top of 2 bottom of vaporizer and water-cooling wall 3 outside useless pot, is formed between the connector and metal pressure-bearing shell 1
Cavity, is laid with heat-insulating material on the inside of the metal pressure-bearing shell 1 of cavity, and when gasifier operation is full of in this cavity and vaporizer
The comparable inert gas of 2 operating pressures.To balance the pressure between vaporizer 2 and cavity, in cavity and vaporizer 2 and useless pot 5
Inside setting balance hole, position water-cooling wall 3 and 2 junction of vaporizer outside useless pot.
Water-cooling wall 3 is fixed by useless pot top header 53 outside useless pot 5 and useless pot, give up 5 high-temperature operation of pot when can downwards from
By expanding.Useless pot water inlet 51 connects useless pot lower part header 52 by water pipe, and the pot top header 53 that gives up connects useless pot by water pipe
Water outlet 54.Water-cooling wall water inlet 31 connects water screen header 32 outside useless pot by water pipe outside useless pot, water cooling outside the pot that gives up
Wall water outlet 33 also connects water screen header 32 outside useless pot.
Scum pipe 4 is supported by the scum pipe Quench water inlet 41 and scum pipe Quench water manifold 42 of lower part, 4 top of scum pipe
In useless pot 5 and fixed radial through useless pot 5, when 4 high-temperature operation of scum pipe, can upward free wxpansion.
Scum pipe 4 is water wall structure, and the attached heat-barrier material in water-cooling wall outer surface；The heat-barrier material is silicon carbide
Or ceramic fibre；The water wall structure is shell and tube water-cooling wall, and all tubulation tops are internally bent, and forms deslagging
Pipe water-cooling wall elbow 43, bending radius are more than or equal to the diameter of single tubulation.Slag chilling ring 44 is connected to tubulation upper end.Row
Slag pipe Quench water inlet 41 connects scum pipe Quench water manifold 42.
The internal diameter of scum pipe 4 is greater than 27 outer diameter of the first slag-drip opening of vaporizer 2, and synthesis gas is made to pass through scum pipe 4 and gasification
Flow velocity with about 10m/s when annular space between the first slag-drip opening 27 of room.4 top highest point of scum pipe is optionally greater than vaporizer
The minimum point of 2 the first slag-drip opening 27, guarantee, which melts slag and will not be synthesized gas, brings useless pot 5 into.It is cold that scum pipe 4 extends downward into washing
But 6 bottom of room, the depth for making scum pipe 4 be inserted into 6 liquid level of scrubbing-cooling chamber are greater than insertion 6 liquid level of scrubbing-cooling chamber of down-comer 61
Depth, to make synthesis gas into scum pipe 4 after reaching liquid level to above turning back hence into useless pot 5.
Slag chilling ring 44 is arranged in the middle and upper part of scum pipe 4, and slag chilling ring 44 is connected to 4 water-cooling wall of scum pipe, chilled water from
The scum pipe Quench water inlet 41 of 4 lower part of scum pipe enters, through scum pipe Quench water manifold 42,4 water-cooling wall of scum pipe, finally from
Slag chilling ring 44 flows out.Slag chilling ring 44 is lower than the minimum point of the first slag-drip opening 27 equal to vaporizer 2, and slag chilling ring 44 is arranged
Moisture film can be avoided the formation of in scum pipe 4, to protect scum pipe 4, while slag Quench be made to be broken into glass dregs, slag chilling ring
44 can also the partial-chilled synthesis gas into scum pipe 4, when the synthesis gas being partially quenched is turned back into useless pot 5 and non-Quench
When synthesis gas mixes, the bulk temperature of synthesis gas can be reduced, to reduce the severe operational environment degree on useless 5 top of pot, is promoted
The reliability of useless pot 5.
Scrubbing-cooling chamber 6 is connected to useless 5 lower part of pot, and 6 top of scrubbing-cooling chamber is provided with synthesis gas chilling ring 63 and inside
It is provided with down-comer 61, down-comer 61 is connect with synthesis gas chilling ring 63, and the minimum point of down-comer 61 necessarily is greater than scum pipe 4
Minimum point, avoid synthesis gas from directly passing through scum pipe 4 and gasification furnace be discharged, so that useless pot 5 be caused to be bypassed.
Scrubbing-cooling chamber 6 includes down-comer 61, down-comer 61 and 63 integrated setting of synthesis gas chilling ring, passes through water inlet pipe
Road flexible support is connect with 3 bottom of water-cooling wall outside useless pot, and when high-temperature operation can downward free wxpansion.To prevent down-comer 61
Positive stop strip 67 is arranged in 61 middle and lower part of down-comer in radial vibration.6 top of scrubbing-cooling chamber is equipped with syngas outlet 64, bottom is set
There is the second slag-drip opening 66.6 top of scrubbing-cooling chamber is additionally provided with synthesis gas Quench water inlet 62, bottom is additionally provided with Heisui River outlet 65.
The internal diameter of vaporizer 2 is 1.8~3.8m.The ratio of height to diameter h0/D0 of vaporizer 2 be 2.5~4.5, preferably 2.8~
3.8。
Scum pipe 4 is tubulation water wall structure, and on the attached heat-barrier material slag chilling ring 44 in outer surface and tubulation water-cooling wall
The connection of portion end.The internal diameter D1 of scum pipe 4 is 1.2~1.8 times of 27 outside diameter d of the first slag-drip opening of vaporizer 2, preferably
1.5~1.6 times；27 outside diameter d of the first slag-drip opening of vaporizer 2 is 0.25~0.5 times of 2 internal diameter of vaporizer.
The 27 difference in height h1 of the first slag-drip opening of scum pipe 4 and vaporizer 2 is 0~2m, preferably 0.1~0.8m.Slag swashs
The 27 difference in height h2 of the first slag-drip opening of cold ring 44 and vaporizer 2 is 0~3m, preferably 0.2~1.2m.
Useless pot 5 is coiled water wall structure, is spiraled by 1~4 seamless steel pipe and forms cylindrical shape, and single cylinder is one
Circle, 3~7 circle coil wall of arrangement, the pot outside water-cooling wall 3 that gives up is shell and tube water-cooling wall.
The difference in height h3 of down-comer 61 and scum pipe 4 is 1~5m, preferably 2.5~4m；61 internal diameter of down-comer is row
1.1~1.5 times of 4 outer diameter of slag pipe, preferably 1.2~1.4 times.
Vaporizer operating pressure is 0~15MPaG, preferably 4~9MPaG.
Gasification furnace needs one or two mating drum to work together, when mating two drums, vaporizer and useless pot point
Not with a drum.The vaporizer of the gasification furnace only produces saturated vapor, and useless pot, which can both produce saturated vapor, can also produce superheated steam.
Depending on the pressure of saturated vapor or the temperature of superheated steam are as needed.In order to avoid synthesis gas leaks into vapour system, steam
The pressure of vapour system is higher than vaporizer operating pressure.
Embodiment 2
The present embodiment is carried out at dry coal powder gasification using the pot Quench integral type water wall gasifier that gives up shown in embodiment 1
Reason, day output is 3000 tonnes of coal of day processing, specifically as follows to the parameter designing of gasification furnace:
The internal diameter 4.75m of the metal pressure-bearing shell 1 of 2 portion of external of vaporizer, give up pot 5 and 6 portion of external of scrubbing-cooling chamber
Metal pressure-bearing shell 1 internal diameter 4.75m, the internal diameter of vaporizer 2 is 3.1m, and 4 internal diameter of scum pipe is 1.9m, 2 straight tube of vaporizer
Duan Gaodu is 8.7m, and 5 straight section height of pot that gives up is 10.0m, and gasification furnace total height is 38m.
Specific gasification process is as follows:
The mixture of dry pulverized coal, oxygen and superheated steam enters gasification furnace through nozzle, and partial oxidation is carried out in vaporizer 2
Reaction, vapor pressure 4.0MPaG, gasification temperature are 1460 DEG C, effective gas CO+H2Yield is 230000Nm3/h.Dry pulverized coal uses
CO2It conveys, about 200 DEG C of CO is filled in the cavity between vaporizer and pressure-bearing shell2Gas.
The water-cooling wall of vaporizer and useless pot shares a drum, and the pressure of drum is 5.5MPaG, and corresponding saturation temperature is
271℃.The water inlet of the water-cooling wall of the water-cooling wall of vaporizer and useless pot comes from drum, i.e. temperature is 271 DEG C of saturated water, in vaporizer
Become steam water interface return drum after absorbing heat in water-cooling wall and useless pot water-cooling wall, in drum after steam separates,
Saturated vapor draws from drum top and goes user, and saturated water is drawn from drum lower part and returned to after forced circulation pump is pressurized
Water-cooling wall.In forced circulation pump accident condition, the design of water-cooling wall can be realized Natural Circulation.The liquid level of drum is given by boiler
Water maintains, and boiler feed temperature is 200 DEG C, pressure 6.0MPaG.The saturated-steam temperature of drum output is 271 DEG C, pressure is
5.5MPaG, yield 156t/h.
The about 1460 DEG C of high-temperature synthesis gas generated that gasify and lime-ash enter scum pipe 4, since scum pipe is inserted into wash cooling
Depth in the liquid level of room is greater than the depth in down-comer insertion scrubbing-cooling chamber liquid level, thus synthesis gas can not by scum pipe into
Enter scrubbing-cooling chamber, most of synthesis gas is turned back from down-comer top into useless pot, and it is laggard that most of heat is recycled in useless pot
Enter down-comer, is entered after scrubbing-cooling chamber washing by down-comer and gasification furnace is discharged from the syngas outlet on scrubbing-cooling chamber top.
Melt slag is then relied on gravity to fall into scrubbing-cooling chamber bottom after slag chilling ring Quench, is discharged and is gasified from the second slag-drip opening of bottom
Furnace.It up turns back again after still thering is small part synthesis gas to reach liquid level, this partially synthetic gas is quenched together with slag, and temperature is
It 200~250 DEG C, is mixed after up turning back with the most of synthesis gas not being quenched, reduces the synthesis gas temperature for entering useless pot
To 900~1100 DEG C or so, the melting flying dust carried secretly in synthesis gas is cured, and avoids melting flying dust and brings useless pot into and cause to tie
Slag.
Synthesis gas temperature through the cooling laggard scrubbing-cooling chamber of the pot that gives up is 500~700 DEG C, and synthesis gas goes out scrubbing-cooling chamber
150~250 DEG C of temperature.Synthesis gas enters conversion section after washing, is 0.6 into water-gas ratio in the crude synthesis gas of conversion section
~0.8, the technique requirement converted close to CO.
The overall gasification performance test result of the present embodiment is specific as follows:
Gasification reaction temperature: 1460 DEG C
Useless pot outlet syngas temperatures: 650 DEG C
Exiting syngas water-gas ratio: 0.78
Byproduct steam: 156t/h
It is consumed than oxygen: 303Nm3O2/1000Nm3(CO+H2)
Than coal consumption: 545kg coal (butt)/1000Nm3(CO+H2)
Effective gas ingredient (CO+H2): 95% (butt)
Cold gas efficiency: 82.5%
Gasify furnace thermal efficiency: 92.8%
As it can be seen that the technique of the utility model using useless pot and Quench combined process flow, i.e., the coal gas of high temperature warp of gasification furnace is useless out
Pot is cooled to 600 DEG C or so, has then recycled most of sensible heat in coal gas of high temperature to required temperature with water Quench.Phase
Than simple Quench type gasification furnace, gasification furnace and gasification process provided by the utility model improve about 10% using energy source effect
Rate keeps the energy-saving advantage of gasification process more obvious.
The above, the only preferred embodiment of the utility model, it is in any form and substantive not to the utility model
On limitation, it is noted that for those skilled in the art, in the premise for not departing from the utility model method
Under, several improvement and supplement can be also made, these are improved and supplement also should be regarded as the protection scope of the utility model.It is all ripe
Professional and technical personnel is known, in the case where not departing from the spirit and scope of the utility model, when using disclosed above
Technology contents and the equivalent variations of a little variation, modification and evolution made, be the equivalent embodiment of the utility model；Together
When, all substantial technologicals according to the utility model to the variation, modification and evolution of any equivalent variations made by above-described embodiment,
In the range of still falling within the technical solution of the utility model.
Claims (10)
1. a kind of useless pot Quench integral type water wall gasifier, it is characterised in that: same including metal pressure-bearing shell (1) and its inside
Vaporizer (2), scum pipe (4), useless pot (5) and the scrubbing-cooling chamber (6) of axis setting；Vaporizer (2) is set to above useless pot (5),
And the bottom of vaporizer (2) is connect with the top of water-cooling wall (3) outside the useless pot being arranged outside useless pot (5)；
Scum pipe (4) is set to useless pot (5) inside, and the internal diameter of scum pipe (4) is greater than the first slag-drip opening (27) outer diameter of vaporizer (2)
And scum pipe (4) top highest point is optionally greater than the minimum point of first slag-drip opening (27) of vaporizer (2), in scum pipe (4)
Slag chilling ring (44) are arranged in top and the slag chilling ring (44) is lower than the minimum of the first slag-drip opening (27) for being equal to vaporizer (2)
Point；
Scrubbing-cooling chamber (6) is set to below useless pot (5), and scum pipe (4) extends downward into scrubbing-cooling chamber (6) bottom；It washs cold
But room (6) top is equipped with synthesis gas chilling ring (63), is equipped with down-comer (61) inside scrubbing-cooling chamber (6), the down-comer
(61) top is connect with the synthesis gas chilling ring (63), and the minimum point of the down-comer (61) is higher than the scum pipe (4)
Minimum point；Scrubbing-cooling chamber (6) top is equipped with syngas outlet (64), bottom is equipped with the second slag-drip opening (66).
2. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the vaporizer
It (2) is water wall structure, the cylinder of a top burner (21) and/or the vaporizer (2) is arranged in the top of the vaporizer (2)
Multiple side burners (22) are arranged in same level on body sidewall, and the ratio of height to diameter h0/D0 of the vaporizer (2) is 2.5~4.5.
3. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: outside the useless pot
Water-cooling wall (3) is shell and tube water-cooling wall.
4. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the useless pot (5)
For coiled water wall structure, multi-turn coil wall is coaxially arranged.
5. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the scum pipe
It (4) is water wall structure, and the attached heat-barrier material in water-cooling wall outer surface；The heat-barrier material is silicon carbide or ceramic fibre；
The water wall structure is shell and tube water-cooling wall, and all tubulation tops are internally bent, and bending radius is more than or equal to single
The diameter of root tubulation, the slag chilling ring (44) are connected to tubulation upper end.
6. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the scum pipe
(4) internal diameter D1 is 1.2~2.8 times of the first slag-drip opening (27) outside diameter d of the vaporizer (2).
7. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the scum pipe
It (4) is 0~2m with the first slag-drip opening (27) the difference in height h1 of vaporizer (2)；The of the slag chilling ring (44) and vaporizer (2)
One slag-drip opening (27) difference in height h2 is 0~3m.
8. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the down-comer
It (61) is 1~5m with the difference in height h3 of scum pipe (4), down-comer (61) internal diameter is the 1.1~1.5 of scum pipe (4) outer diameter
Times.
9. a kind of useless pot Quench integral type water wall gasifier as described in claim 1, it is characterised in that: the vaporizer
(2), it gives up between pot outside water-cooling wall (3) and metal pressure-bearing shell (1) and forms cavity, the metal pressure-bearing shell (1) of the cavity
Inside is laid with heat-insulating material, is full of and the comparable inert gas of vaporizer (2) operating pressure in the cavity.
10. a kind of useless pot Quench integral type water wall gasifier as claimed in claim 9, it is characterised in that: outside the useless pot
Portion's water-cooling wall (3) and vaporizer (2) junction are equipped with the balance for balancing the pressure between vaporizer (2) and the cavity
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862773.0U CN209428472U (en) | 2018-11-13 | 2018-11-13 | Useless pot Quench integral type water wall gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862773.0U CN209428472U (en) | 2018-11-13 | 2018-11-13 | Useless pot Quench integral type water wall gasifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355104A (en) * | 2018-11-13 | 2019-02-19 | 上海锅炉厂有限公司 | A kind of useless pot Quench integral type water wall gasifier and gasification process |
| CN111732973A (en) * | 2020-06-12 | 2020-10-02 | 北京盈德清大科技有限责任公司 | Radiation heat transfer type gasification furnace |
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2018
- 2018-11-13 CN CN201821862773.0U patent/CN209428472U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355104A (en) * | 2018-11-13 | 2019-02-19 | 上海锅炉厂有限公司 | A kind of useless pot Quench integral type water wall gasifier and gasification process |
| CN109355104B (en) * | 2018-11-13 | 2023-09-22 | 上海锅炉厂有限公司 | Waste boiler chilling integrated water-cooled wall gasifier and gasification method |
| CN111732973A (en) * | 2020-06-12 | 2020-10-02 | 北京盈德清大科技有限责任公司 | Radiation heat transfer type gasification furnace |
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