CN202989081U - Integrated beam radiation boiler and preheating boiler mixed type energy utilization device - Google Patents
Integrated beam radiation boiler and preheating boiler mixed type energy utilization device Download PDFInfo
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- CN202989081U CN202989081U CN2012206787182U CN201220678718U CN202989081U CN 202989081 U CN202989081 U CN 202989081U CN 2012206787182 U CN2012206787182 U CN 2012206787182U CN 201220678718 U CN201220678718 U CN 201220678718U CN 202989081 U CN202989081 U CN 202989081U
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- 230000005855 radiation Effects 0.000 title claims abstract description 120
- 238000002309 gasification Methods 0.000 claims abstract description 42
- 239000002893 slag Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 137
- 238000012546 transfer Methods 0.000 claims description 49
- 239000006200 vaporizer Substances 0.000 claims description 44
- 239000003245 coal Substances 0.000 claims description 17
- 239000003818 cinder Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 4
- 239000003250 coal slurry Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 57
- 238000011084 recovery Methods 0.000 abstract description 10
- 239000002918 waste heat Substances 0.000 abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 18
- 238000003786 synthesis reaction Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 230000004523 agglutinating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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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
-
- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to an integrated beam radiation boiler and preheating boiler mixed type energy utilization device which comprises a gasification furnace body and a heat recovery device, wherein the gasification furnace body is arranged above the heat recovery device; the heat recovery device comprises a pressure shell, a synthetic gas inlet, a radiation heat exchange component, a temperature reducer component, a convection heat exchange component, a slag pool and a synthetic gas outlet; the synthetic gas inlet is formed in the top of the pressure shell; the synthetic gas outlet is formed in the upper end of the side wall of the pressure shell; the radiation heat exchange component is longitudinally fixed in the middle of the pressure shell; the convection heat exchange component is arranged between the radiation heat exchange component and the pressure shell; the temperature reducer component is fixedly arranged below the convection heat exchange component; the slag pool is located at the lower part in the pressure shell; and a slag discharge port of the gasification furnace body is connected with the top of the heat recovery device through a flange. The device provided by the utility model can effectively absorb the sensible heat of the crude synthetic gas after gasification, generates high-pressure steam or medium-pressure steam to generate power or preheat other working mediums, greatly improves the whole energy utilization rate, has the advantage of high energy recycling rate, effectively reduces the whole size of a waste heat boiler, and is relatively convenient to manufacture, transport and mount.
Description
Technical field
The utility model relates to the energy utilization device of Coal Gasification Technology, particularly the hybrid energy utilization device of integrated pencil radiant boiler preboiler.
Background technology
Gasification is cleaning, efficiently utilizes one of main approach of coal, and gasified raw material and oxygenant are mixed in vapourizing furnace, react rapidly, and the high-temperature synthesis gas of generation (approximately 1400 ℃) is delivered to next workshop and effectively utilized through cooling, dedusting.
In Coal Gasification Technology, the type of cooling of high-temperature synthesis gas mainly contains two kinds, and a kind of is chilling process, and another kind is pot destroying process.Chilling process is that high-temperature synthesis gas fully contacts with chilled water, and coal gas cooling down, slag are solidified.Chilling process does not reclaim the sensible heat in high-temperature synthesis gas, and efficiency of energy utilization is low.In pot destroying process, high-temperature synthesis gas enters successively radiant boiler and preboiler and carries out the heat exchange cooling, and carries out rough dusting.It can reclaim the sensible heat in synthetic gas to greatest extent, to produce high pressure steam or other processing mediums of preheating, this mode can reclaim and be equivalent in the feed coal low-grade heat 15 ~ 18% energy, makes heating gas efficient can reach 90 ~ 95%, has improved the efficiency of energy utilization of system.
In existing entrained flow bed gasification technology, the heat that adopts waste heat boiler to reclaim high-temperature synthesis gas generally has dual mode: the one, take Shell company as the powdered coal pressuring gasified technology of the air flow bed of representative, circulation cold air returns to the outlet of vapourizing furnace high-temperature synthesis gas the vapourizing furnace synthetic gas is cooled to 700～750 ℃, and then enters convection current exhaust-heat boiler heat exchange by-product middle pressure steam.Another kind is the coal water slurry gasification technique take GE company as representative, and high-temperature synthesis gas sensible heat adopts the mode of radiant boiler+counter current boiler to reclaim, the by-product high-pressure saturated steam.But also there are the problems such as complex structure, work-ing life be shorter in waste heat boiler of the prior art, is mainly manifested in:
(1) the Shell bed pulverized coal gasification technology adopts the circulation cold air chilling high-temperature synthesis gas of 1.3～1.5 times, increased the size of convection current exhaust-heat boiler and follow-up synthetic gas dust removal installation thereof, increased simultaneously the investment of equipment, the synthetic gas recycle compressor has increased the energy consumption of gasification installation; Due to the counter current boiler dust stratification, affected the heat transfer effect of counter current boiler, need to add than the more Quench gas of design Quench tolerance.
(2) the full cement sensible heat recovery system of synthetic gas in GE coal water slurry gasification technique is comprised of radiation waste heat boiler and two equipment of convection current exhaust-heat boiler, two equipment are independently arranged, facility investment is large, takes up room large, and the simultaneity factor reliability of operation is also because the complexity of equipment is affected; Radiant boiler synthetic gas temperature lacks regulating measure simultaneously, causes the counter current boiler dust stratification to stop up.
The utility model content
The utility model is defective and the deficiency that overcomes existing vapourizing furnace waste heat boiler, provide a kind of integrated pencil radiant boiler preboiler hybrid energy utilization device, be combined as a whole with radiant boiler and counter current boiler vapourizing furnace, reach abundant recovery high-temperature synthesis gas and sensible heat that slag is with, reduce investment and save energy, improve the purpose of thermo-efficiency.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
The hybrid energy utilization device of integrated pencil radiant boiler preboiler is characterized in that: comprise gasification body of heater and heat reclamation device, the gasification body of heater is arranged at above heat reclamation device; Described gasification body of heater comprises pressure housing, refractory liner or water wall, be positioned at the nozzle passage at top and be positioned at the lower cinder notch of bottom; Described heat reclamation device comprises pressure housing, synthetic gas entrance, radiation heat transfer assembly, desuperheater assembly, convective heat exchange assembly, slag bath, syngas outlet, the synthetic gas entrance is positioned at the top of pressure housing, and the upper end of pressure housing sidewall is provided with syngas outlet; The radiation heat transfer assembly vertically is fixed at the centre of pressure housing, and with the abundant heat exchange of the gas of heat; The convective heat exchange assembly is located between radiation heat transfer assembly and pressure housing; The desuperheater assembly is fixedly installed on the below of convective heat exchange assembly; Slag bath is arranged at the bottom in pressure housing, and the bottom of slag bath and the bottom of pressure housing form slag-drip opening jointly; The lower cinder notch of described gasification body of heater is connected by flange with the heat reclamation device top, and lower cinder notch is communicated with the synthetic gas entrance.
Described synthetic gas entrance is a long narrow passage, and the inwall of this synthetic gas entrance is refractory liner.
described radiation heat transfer assembly comprises radiation water wall and radiation screen, and the radiation water wall is the cylindrical wall that the standpipe by several parallel longitudinal settings surrounds, and two adjacent standpipes are by being welded to connect, and the centre of cylindrical wall is the radiation heat transfer chamber, the radiation heat transfer assembly also comprises radiation water wall upper collecting chamber, radiation water wall lower header, radiation water wall water inlet pipe, radiation water wall fairlead and radiation water wall surface, radiation water wall upper collecting chamber is communicated with the upper end of each standpipe, radiation water wall lower header is communicated with the lower end of each standpipe, one end of radiation water wall water inlet pipe and pressure housing are affixed and be located at the outside of pressure housing, the other end of radiation water wall water inlet pipe is communicated with radiation water wall upper collecting chamber, one end of radiation water wall fairlead and the upper cover of pressure housing are affixed, the other end is communicated with radiation water wall upper collecting chamber.
Described radiation screen is formed by several standpipes row, and all standpipes rows outwards disperse with the center of heat reclamation device and are distributed in the radiation heat transfer chamber, and each standpipe row is formed by some standpipes, and adjacent two standpipes that standpipe is arranged are close to setting; The radiation heat transfer assembly also comprises radiation screen upper collecting chamber, radiation screen lower header, radiation screen water inlet pipe, radiation screen fairlead, the lower end of radiation screen heating surface is communicated with the radiation screen lower header, the upper end of radiation screen heating surface is communicated with the radiation screen upper collecting chamber, radiation screen water inlet pipe and radiation screen fairlead are communicated with radiation screen lower header and radiation screen upper collecting chamber respectively, and are drawn out to outside pressure housing.
Described convective heat exchange assembly comprises convective heat exchange water wall, vaporizer, superheater and economizer, vaporizer, superheater and economizer distribute from top to bottom successively, the cylindrical wall that the convective heat exchange water wall is surrounded by the standpipe of several parallel longitudinal settings, two adjacent standpipes are by being welded to connect, and vaporizer, superheater and economizer are positioned at the centre of cylindrical wall.
Described convective heat exchange water wall also comprises convective heat exchange water wall upper collecting chamber, convective heat exchange water wall lower header, convective heat exchange water wall water inlet pipe, convective heat exchange water wall fairlead, the upper end of convective heat exchange water wall is communicated with the convective heat exchange water wall, the lower end of convective heat exchange water wall is communicated with convective heat exchange water wall lower header, convective heat exchange water wall water inlet pipe is communicated with convective heat exchange water wall lower header, and convective heat exchange water wall fairlead is communicated with convective heat exchange water wall upper collecting chamber; Convective heat exchange water wall water inlet pipe and convective heat exchange water wall fairlead all extend to outside pressure housing.
Described vaporizer, superheater and economizer are formed by one group of spiral pipe respectively, and every group of spiral pipe comprises respectively four helical layer endless tubes, between every two-layer spiral endless tube, certain distance are arranged, every helical layer endless tube by pipe closely around forming.
Described vaporizer also comprises vaporizer upper collecting chamber, vaporizer lower header, vaporizer water inlet pipe, vaporizer fairlead, the upper end that forms the spiral pipe of vaporizer is communicated with the vaporizer upper collecting chamber, the lower end that forms the spiral pipe of vaporizer is communicated with the vaporizer lower header, the vaporizer water inlet pipe is communicated with the vaporizer lower header, and the vaporizer fairlead is communicated with the vaporizer upper collecting chamber; Described superheater also comprises superheater upper collecting chamber, superheater lower header, superheater water inlet pipe, superheater fairlead, the upper end that forms the spiral pipe of superheater is communicated with the superheater upper collecting chamber, the lower end that forms the spiral pipe of superheater is communicated with the superheater lower header, the superheater water inlet pipe is communicated with the superheater lower header, and the superheater fairlead is communicated with the superheater upper collecting chamber; Described economizer also comprises economizer upper collecting chamber, economizer lower header, economizer water inlet pipe, economizer fairlead, and the upper end that forms the spiral pipe of superheater is communicated with the economizer upper collecting chamber; The lower end that forms the spiral pipe of economizer is communicated with the economizer lower header, and the economizer water inlet pipe is communicated with the economizer lower header, and the economizer fairlead is communicated with the economizer upper collecting chamber; Vaporizer water inlet pipe, vaporizer fairlead, superheater water inlet pipe, superheater fairlead, economizer water inlet pipe, economizer fairlead all extend to outside pressure housing.
Described desuperheater assembly comprises desuperheating water water inlet pipe, desuperheating water header and a plurality of atomizing nozzle, and atomizing nozzle distributes by even circumferential as the center of circle take the center of heat reclamation device, and shower nozzle is arranged downwards; Atomizing nozzle is communicated with the desuperheating water header, and the desuperheating water water inlet manifold is communicated with the desuperheating water header.
Described slag bath is in the lower end of desuperheater assembly, and the upper end of slag bath is connected with convective heat exchange water wall lower end.
Described gasification body of heater is air flow bed formula vapourizing furnace, comprises the various forms of vapourizing furnaces such as single nozzle and multi nozzle of gasification furnace, coal slurry and powder coal gasification furnace, water wall and refractory liner vapourizing furnace.
The principle of work of the hybrid energy utilization device of described integrated pencil radiant boiler preboiler is:
Gasified raw material (coal water slurry or dry pulverized coal) and oxygenant are mixed in the gasification body of heater, generating gasification reaction rapidly, the crude synthesis gas (temperature is about 1400 ℃) of generation High Temperature High Pressure; After the synthetic gas melting slag of this High Temperature High Pressure (approximately 1400 ℃ of temperature) goes out vapourizing furnace, enter heat reclamation device by long narrow synthetic gas entrance, enter by the radiation heat transfer chamber with higher gas velocity downwards, in the radiation heat transfer chamber, high-temperature synthesis gas stream and melting slag are carried out the radiation water-cooled cooling;
synthetic gas and melting slag enter in the radiation heat transfer chamber, mode with radiative transfer is passed to heat the radiation heat transfer assembly of surrounding, because circulation area enlarges, melting slag under airflow function to the surrounding splash, from leaving the synthetic gas entrance to the process that arrives the radiation water wall, sufficiently cooled, solidify and lose agglutinating value(of coal), fall under gravity in the slag bath of radiation heat transfer assembly bottom, mix sharply cooling in slag bath with water, form the solid-state lime-ash of high rigidity, lime-ash can enter in the lock slag ladle with water, blow device is set near slag bath, carry out the disturbance of Anti-slagging precipitation, guarantee the reliable and stable operation of dreg removing system, carry the flying dust that part is not condensed from the synthetic gas that the radiation heat transfer assembly gets off secretly, condense in the place at the desuperheater assembly, after condensing, synthetic gas enters that the convective heat exchange assembly flows through vaporizer, superheater, economizer successively and to carry out heat exchange cooling with the water of the inside.
This heat reclamation device is combined as a whole radiation heat transfer and convective heat exchange, and recovery sensible heat that high-temperature synthesis gas is with as much as possible.The radiation heat transfer screen is in the middle and lower part of radiation water heat exchanging chamber, and its existence has increased the radiation heat transfer face, has reduced the volume of radiation heat transfer part, makes heat transfer effect better.
The beneficial effects of the utility model are as follows:
(1) the utility model can effectively absorb the sensible heat of the crude synthesis gas after gasification, produces high pressure steam or middle pressure steam and is used for generating or other working medium of preheating, and whole energy utilization rate improves greatly, has advantages of that the energy recovery utilization ratio is high.
(2) the hybrid energy utilization device of integrated revolution shape radiant boiler preboiler that provides of the utility model, its heat reclamation device adopts the Double water-cooled wall construction to design and arrange radiation heat transfer screen and convective heat exchange face, effectively reduced the waste heat boiler overall dimensions, made, transport and install more for convenience.
Beneficial effect of the present invention is as follows:
(1) the hybrid energy utilization device of integrated pencil radiant boiler preboiler provided by the invention, can effectively absorb the crude synthesis gas sensible heat after gasification, produce high pressure steam or middle pressure steam and be used for generating or other working medium of preheating, whole energy utilization rate improves greatly, has advantages of that the energy recovery utilization ratio is high.
(2) the hybrid energy utilization device of integrated pencil radiant boiler preboiler provided by the invention, its heat reclamation device adopts the Double water-cooled wall construction to design and arrange radiation heat transfer screen and convective heat exchange face, effectively reduced the waste heat boiler overall dimensions, made, transport and install more for convenience.
(3) the hybrid energy utilization device of integrated pencil radiant boiler preboiler provided by the invention, its heat reclamation device is with regulating measure, arrange the atomizing spray Desuperheating device bottom the convective heat exchange assembly, injection flow rate can be controlled according to the temperature of the flue gas that enters convective heat exchange face assembly, make the homo(io)thermism of the coal gas of high temperature that enters the convective heat exchange face, thereby eliminate the dust stratification problem of convective heat exchange face.
Description of drawings
Fig. 1 is cross-sectional schematic of the present invention;
Fig. 2 is the A-A cross section cross-sectional schematic in Fig. 1 of the present invention;
Fig. 3 is the B-B cross section cross-sectional schematic in Fig. 1 of the present invention;
Fig. 4 is the partial schematic diagram of the I section in Fig. 1 of the present invention.
Wherein, Reference numeral is: 1 gasification body of heater, 2 heat reclamation devices, the refractory liner of 3 vapourizing furnaces or water wall, 4 nozzle passages, 5 times cinder notch, the pressure housing of 6 gas bodies of heater, 7 synthetic gas entrances, 8 flanges, the refractory liner of 9 synthetic gas entrances or water wall, 10 radiation heat transfer assemblies, 10-1 radiation water wall, 10-2 radiation screen, 10-4 convective heat exchange water wall, 11 convective heat exchange assemblies, 11-1 vaporizer, 11-2 superheater, the 11-3 economizer, the pressure housing of 12 heat reclamation devices, 13 desuperheater assemblies, 13-1 atomizing nozzle, 14 slag baths, 16 times cinder notch.
Embodiment
As shown in Fig. 1-4, the hybrid energy utilization device of integrated pencil radiant boiler preboiler, comprise gasification body of heater 1 and heat reclamation device 2, described gasification body of heater 1 is positioned at heat reclamation device 2 tops, and gasification body of heater 1 is comprised of pressure housing 6, refractory liner (or water wall) 3, lower cinder notch 5 and the nozzle passage 4 of gas body of heater.Described vapourizing furnace is airflow bed gasification furnace, comprises the various forms of vapourizing furnaces such as single nozzle and multi nozzle of gasification furnace, coal slurry and powder coal gasification furnace, water wall and refractory liner vapourizing furnace (in Fig. 1 take the entrained flow gasification body of heater of single nozzle refractory liner structure as example).
Described heat reclamation device 2 is the hybrid heat reclamation device of radiant boiler preboiler, comprises synthetic gas entrance 7, radiation heat transfer assembly 10, slag bath 14, desuperheater assembly 13, convective heat exchange assembly 11, pressure housing 12.This heat reclamation device 2 is pencil, and radiation heat transfer part 10 is at internal layer, and convective heat exchange assembly 11 is at skin, and slag bath 14 is positioned at heat reclamation device 2 bottoms.
Described gasification body of heater 1 is connected with heat reclamation device by flange 8 connections, and between stream oriented device, by a long narrow channel connection, vias inner walls is refractory liner 9.
Described heat reclamation device 2 is the hybrid heat reclamation device of a kind of pencil, and the upper end of pressure housing 12 sidewalls is provided with syngas outlet 17, is provided with synthetic gas access road 7 on the upper cover of pressure housing 12.
Described radiation heat transfer assembly 10 comprises radiation water wall 10-1 and radiation screen 10-2, and radiation water wall 10-1 surrounds columniform cavity by a plurality of standpipes that be arranged in parallel of spoke and forms, between two adjacent adapters by being welded to connect.Radiation screen 10-2 is positioned at the cavity that radiation heat transfer assembly 10 surrounds.
Described convective heat exchange assembly 11 is positioned at radiation heat transfer assembly 10 skins, comprises that convective heat exchange water wall 11-4, vaporizer 11-1, superheater 11-2 and economizer 11-3 form.
Described vaporizer 11-1, superheater 11-2 and economizer 11-3 are comprised of three groups of spiral pipes, and the spiral pipe skin is convective heat exchange water wall 11-4, and the spiral pipe internal layer is radiation water wall 10-1.Every group of spiral pipe by four layers closely around the spiral endless tube form, group with organize between be staggered in arrangement.Vaporizer 11-1, superheater 11-2 and economizer 11-3 are arranged in annular space between radiation water wall 10-1 and convective heat exchange water wall 11-4 successively.
Described desuperheater assembly 13 is positioned at convective heat exchange assembly 11 bottoms, by a plurality of atomizing nozzle 13-1 according to the even circumferential distribution and constitution.
Described slag bath 14 is in the bottom of desuperheater assembly 13, and slag bath 14 upper ends are connected with convective heat exchange water wall 11-4 lower end, and the lower end of slag bath 14 lower ends and pressure housing 12 is connected to form slag-drip opening 16.
The principle of work of the hybrid energy utilization device of described integrated pencil radiant boiler preboiler is:
Gasified raw material (coal water slurry or dry pulverized coal) and oxygenant are mixed in the gasification body of heater, generating gasification reaction rapidly, the crude synthesis gas (temperature is about 1400 ℃) of generation High Temperature High Pressure; After the synthetic gas melting slag of this High Temperature High Pressure (approximately 1400 ℃ of temperature) goes out vapourizing furnace, enter heat reclamation device by long narrow synthetic gas entrance, enter by the radiation heat transfer chamber with higher gas velocity downwards, in the radiation heat transfer chamber, high-temperature synthesis gas stream and melting slag are carried out the radiation water-cooled cooling;
synthetic gas and melting slag enter in the radiation heat transfer chamber, mode with radiative transfer is passed to heat the radiation heat transfer assembly of surrounding, because circulation area enlarges, melting slag under airflow function to the surrounding splash, from leaving the synthetic gas entrance to the process that arrives the radiation water wall, sufficiently cooled, solidify and lose agglutinating value(of coal), fall under gravity in the slag bath of radiation heat transfer assembly bottom, mix sharply cooling in slag bath with water, form the solid-state lime-ash of high rigidity, lime-ash can enter in the lock slag ladle with water, blow device is set near slag bath, carry out the disturbance of Anti-slagging precipitation, guarantee the reliable and stable operation of dreg removing system, carry the flying dust that part is not condensed from the synthetic gas that the radiation heat transfer assembly gets off secretly, condense in the place at the desuperheater assembly, after condensing, synthetic gas enters that the convective heat exchange assembly flows through vaporizer, superheater, economizer successively and to carry out heat exchange cooling with the water of the inside.
This heat reclamation device is combined as a whole radiation heat transfer and convective heat exchange, and recovery sensible heat that high-temperature synthesis gas is with as much as possible.The radiation heat transfer screen is in the middle and lower part of radiation water heat exchanging chamber, and its existence has increased the radiation heat transfer face, has reduced the volume of radiation heat transfer part, makes heat transfer effect better.
Claims (11)
1. the hybrid energy utilization device of integrated pencil radiant boiler preboiler is characterized in that: comprise gasification body of heater and heat reclamation device, the gasification body of heater is arranged at the heat reclamation device top; Described gasification body of heater comprises pressure housing, refractory liner or water wall, be positioned at the nozzle passage at top and be positioned at the lower cinder notch of bottom; Described heat reclamation device comprises pressure housing, synthetic gas entrance, radiation heat transfer assembly, desuperheater assembly, convective heat exchange assembly, slag bath, syngas outlet, the synthetic gas entrance is positioned at the top of pressure housing, and the upper end of pressure housing sidewall is provided with syngas outlet; The radiation heat transfer assembly vertically is fixed at the centre of pressure housing, and with the abundant heat exchange of the gas of heat; The convective heat exchange assembly is located between radiation heat transfer assembly and pressure housing; The desuperheater assembly is fixedly installed on the below of convective heat exchange assembly; Slag bath is arranged at the bottom in pressure housing, and the bottom of slag bath and the bottom of pressure housing form slag-drip opening jointly; The lower cinder notch of described gasification body of heater is connected by flange with the heat reclamation device top, and lower cinder notch is communicated with the synthetic gas entrance.
2. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 1, it is characterized in that: described synthetic gas entrance is a long narrow passage, and the inwall of this synthetic gas entrance is refractory liner.
3. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 1, it is characterized in that: described radiation heat transfer assembly comprises radiation water wall and radiation screen, the radiation water wall is the cylindrical wall that the standpipe by several parallel longitudinal settings surrounds, two adjacent standpipes are by being welded to connect, and the centre of cylindrical wall is the radiation heat transfer chamber, the radiation heat transfer assembly also comprises radiation water wall upper collecting chamber, radiation water wall lower header, radiation water wall water inlet pipe, radiation water wall fairlead and radiation water wall surface, radiation water wall upper collecting chamber is communicated with the upper end of each standpipe, radiation water wall lower header is communicated with the lower end of each standpipe, one end of radiation water wall water inlet pipe and pressure housing are affixed and be located at the outside of pressure housing, the other end of radiation water wall water inlet pipe is communicated with radiation water wall upper collecting chamber, one end of radiation water wall fairlead and the upper cover of pressure housing are affixed, the other end is communicated with radiation water wall upper collecting chamber.
4. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 3, it is characterized in that: described radiation screen is formed by several standpipes row, all standpipes row outwards disperses with the center of heat reclamation device and is distributed in the radiation heat transfer chamber, each standpipe row is formed by some standpipes, and adjacent two standpipes of standpipe row are close to setting; The radiation heat transfer assembly also comprises radiation screen upper collecting chamber, radiation screen lower header, radiation screen water inlet pipe, radiation screen fairlead, the lower end of radiation screen heating surface is communicated with the radiation screen lower header, the upper end of radiation screen heating surface is communicated with the radiation screen upper collecting chamber, radiation screen water inlet pipe and radiation screen fairlead are communicated with radiation screen lower header and radiation screen upper collecting chamber respectively, and are drawn out to outside pressure housing.
5. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 1, it is characterized in that: described convective heat exchange assembly comprises convective heat exchange water wall, vaporizer, superheater and economizer, vaporizer, superheater and economizer distribute from top to bottom successively, the cylindrical wall that the convective heat exchange water wall is surrounded by the standpipe of several parallel longitudinal settings, two adjacent standpipes are by being welded to connect, and vaporizer, superheater and economizer are positioned at the centre of cylindrical wall.
6. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 5, it is characterized in that: described convective heat exchange water wall also comprises convective heat exchange water wall upper collecting chamber, convective heat exchange water wall lower header, convective heat exchange water wall water inlet pipe, convective heat exchange water wall fairlead, the upper end of convective heat exchange water wall is communicated with the convective heat exchange water wall, the lower end of convective heat exchange water wall is communicated with convective heat exchange water wall lower header, convective heat exchange water wall water inlet pipe is communicated with convective heat exchange water wall lower header, convective heat exchange water wall fairlead is communicated with convective heat exchange water wall upper collecting chamber, convective heat exchange water wall water inlet pipe and convective heat exchange water wall fairlead all extend to outside pressure housing.
7. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 6, it is characterized in that: described vaporizer, superheater and economizer are formed by one group of spiral pipe respectively, every group of spiral pipe comprises respectively four helical layer endless tubes, between every two-layer spiral endless tube, certain distance is arranged, every helical layer endless tube by pipe closely around forming.
8. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 7, it is characterized in that: described vaporizer also comprises vaporizer upper collecting chamber, vaporizer lower header, vaporizer water inlet pipe, vaporizer fairlead, the upper end that forms the spiral pipe of vaporizer is communicated with the vaporizer upper collecting chamber, the lower end that forms the spiral pipe of vaporizer is communicated with the vaporizer lower header, the vaporizer water inlet pipe is communicated with the vaporizer lower header, and the vaporizer fairlead is communicated with the vaporizer upper collecting chamber; Described superheater also comprises superheater upper collecting chamber, superheater lower header, superheater water inlet pipe, superheater fairlead, the upper end that forms the spiral pipe of superheater is communicated with the superheater upper collecting chamber, the lower end that forms the spiral pipe of superheater is communicated with the superheater lower header, the superheater water inlet pipe is communicated with the superheater lower header, and the superheater fairlead is communicated with the superheater upper collecting chamber; Described economizer also comprises economizer upper collecting chamber, economizer lower header, economizer water inlet pipe, economizer fairlead, and the upper end that forms the spiral pipe of superheater is communicated with the economizer upper collecting chamber; The lower end that forms the spiral pipe of economizer is communicated with the economizer lower header, and the economizer water inlet pipe is communicated with the economizer lower header, and the economizer fairlead is communicated with the economizer upper collecting chamber; Vaporizer water inlet pipe, vaporizer fairlead, superheater water inlet pipe, superheater fairlead, economizer water inlet pipe, economizer fairlead all extend to outside pressure housing.
9. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 1, it is characterized in that: described desuperheater assembly comprises desuperheating water water inlet pipe, desuperheating water header and a plurality of atomizing nozzle, atomizing nozzle distributes by even circumferential as the center of circle take the center of heat reclamation device, and shower nozzle is arranged downwards; Atomizing nozzle is communicated with the desuperheating water header, and the desuperheating water water inlet manifold is communicated with the desuperheating water header.
10. the hybrid energy utilization device of integrated pencil radiant boiler preboiler according to claim 1, it is characterized in that: described slag bath is in the lower end of desuperheater assembly, and the upper end of slag bath is connected with convective heat exchange water wall lower end.
11. the hybrid energy utilization device of integrated revolution shape radiant boiler preboiler according to claim 1, it is characterized in that: described vapourizing furnace is airflow bed gasification furnace, this airflow bed gasification furnace is the single nozzle vapourizing furnace, perhaps multi nozzle of gasification furnace, perhaps coal slurry vapourizing furnace, perhaps powder coal gasification furnace, perhaps water wall gasifier, perhaps refractory liner vapourizing furnace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206787182U CN202989081U (en) | 2012-12-11 | 2012-12-11 | Integrated beam radiation boiler and preheating boiler mixed type energy utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206787182U CN202989081U (en) | 2012-12-11 | 2012-12-11 | Integrated beam radiation boiler and preheating boiler mixed type energy utilization device |
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| Publication Number | Publication Date |
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| CN202989081U true CN202989081U (en) | 2013-06-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013578A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated bunch type radiant boiler and preheating boiler mixed energy utilization device |
| CN103387851A (en) * | 2013-06-25 | 2013-11-13 | 上海鑫兴化工科技有限公司 | Waste heat boiler-type gasifier |
-
2012
- 2012-12-11 CN CN2012206787182U patent/CN202989081U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013578A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated bunch type radiant boiler and preheating boiler mixed energy utilization device |
| CN103387851A (en) * | 2013-06-25 | 2013-11-13 | 上海鑫兴化工科技有限公司 | Waste heat boiler-type gasifier |
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Effective date of registration: 20180426 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: DONGFANG ELECTRIC Co.,Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: DONGFANG ELECTRIC Corp. |
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Granted publication date: 20130612 |