CN203128514U - Integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling - Google Patents
Integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling Download PDFInfo
- Publication number
- CN203128514U CN203128514U CN2012206786368U CN201220678636U CN203128514U CN 203128514 U CN203128514 U CN 203128514U CN 2012206786368 U CN2012206786368 U CN 2012206786368U CN 201220678636 U CN201220678636 U CN 201220678636U CN 203128514 U CN203128514 U CN 203128514U
- Authority
- CN
- China
- Prior art keywords
- radiation
- communicated
- superheater
- vaporizer
- economizer
- 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.)
- Expired - Fee Related
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 167
- 238000011084 recovery Methods 0.000 title abstract description 7
- 239000000779 smoke Substances 0.000 title abstract 4
- 239000007789 gas Substances 0.000 claims abstract description 82
- 239000002893 slag Substances 0.000 claims abstract description 42
- 238000002156 mixing Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 141
- 239000006200 vaporizer Substances 0.000 claims description 53
- 238000012546 transfer Methods 0.000 claims description 44
- 238000010791 quenching Methods 0.000 claims description 40
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 32
- 239000003546 flue gas Substances 0.000 claims description 32
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 14
- 239000002918 waste heat Substances 0.000 abstract description 12
- 239000003245 coal Substances 0.000 abstract description 10
- 238000002309 gasification Methods 0.000 abstract description 8
- 238000010248 power generation Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 9
- 239000002956 ash Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000004523 agglutinating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
-
- 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]
-
- 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
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to an integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling. High-temperature synthetic gas and molten slag enter a radiation heat exchange component from a synthetic gas inlet of the device and enter a gas mixing chamber of a smoke gas chilling component after radiation heat exchange for performing gas exchange cooling, then solid ash slag enters a slag pool, and the synthetic gas is folded back for upwards passing through a temperature reduction device component for spray cooling; and the synthetic gas further enters a convection heat exchange component, sequentially flows by an evaporator, a superheater and a coal economizer for performing heat exchange cooling, and is exhausted from a synthetic gas outlet. The integrated rotary radiation preheating mixed type heat recovery device disclosed by the utility model effectively combines radiation heat exchange, smoke gas chilling and convection heat exchange and can be used for an IGCC (integrated gasification combined cycle) power generation system, sensible heat in the coarse synthetic gas is absorbed for producing high-pressure steam or medium-pressure steam for power generation, the utilization rate of energy of the whole device is greatly improved, the recovery and utilization rate of the energy is high, the whole size of a waste heat boiler is effectively reduced, the manufacturing, transportation and mounting are relatively convenient, and the ash accumulation problem on a convection heat exchange surface can be eliminated.
Description
Technical field
The utility model relates to the hot vapourizing furnace of Coal Gasification Technology, particularly a kind of hybrid heat reclamation device of integrated revolution shape radiation preheating with the flue gas Quench.
Background technology
Integrated gasification combined cycle for power generation system (IGCC) can realize that coal-firing efficient, cleaning and variation utilize, and also is future development coal-based power generation CO
2Zero release---i.e. one of the core technology of " green coal " coal.In the IGCC power generation system, waste heat boiler is the substantial equipment in the sensible heat key equipment of recycling and the island of gasifying, waste heat boiler will make heating gas efficient reach 90～95% to the recycling of coal gas of high temperature, melting slag sensible heat, generating efficiency reaches 42～45%, and the running condition of waste heat boiler will directly influence available rate and the whole generating efficiency of IGCC power generation 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, and be the powdered coal pressuring gasified technology of air flow bed of representative with Shell company, circulation cold air returns the outlet of vapourizing furnace high-temperature synthesis gas the vapourizing furnace synthetic gas is cooled to 700～750 ℃, and then enters convection current waste heat boiler heat exchange by-product middle pressure steam.Another kind is to be the coal water slurry gasification technology of representative with GE company, 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 waste heat boiler of the prior art also exists complex structure, work-ing life than problems such as weak points, mainly shows:
(1) the Shell bed pulverized coal gasification technology adopts 1.3～1.5 times circulation cold air chilling high-temperature synthesis gas, increased the size of convection current waste heat boiler and follow-up synthetic gas dust removal installation thereof, increased the investment of equipment simultaneously, the synthetic gas recycle compressor has increased the energy consumption of gasification installation; Owing to the counter current boiler dust stratification, influenced the heat exchange 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 the GE coal water slurry gasification technology is made up of radiation waste heat boiler and two equipment of convection current waste heat boiler, two equipment are independently arranged, cause facility investment big, it is big to take up room, and reliability of system operation is also owing to the complexity of equipment is affected; Radiant boiler synthetic gas temperature shortage regulating measure causes the counter current boiler dust stratification to stop up simultaneously.
The utility model content
The utility model is defective and the deficiency that overcomes existing vapourizing furnace waste heat boiler, a kind of hybrid heat reclamation device of integrated revolution shape radiation preheating with the flue gas Quench is provided, with radiant boiler and counter current boiler in conjunction with as a whole, reach abundant recovery high-temperature synthesis gas and sensible heat that melting 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 heat reclamation device of integrated revolution shape radiation preheating of band flue gas Quench, it is characterized in that: comprise pressure housing, synthetic gas entrance, radiation heat transfer assembly, flue gas chilling assembly, convective heat exchange assembly, desuperheater assembly, slag bath, syngas outlet, the synthetic gas entrance is positioned at the top of pressure housing, and syngas outlet is positioned at the upper end of pressure housing sidewall; The radiation heat transfer assembly is fixed at the top in the pressure housing, with the abundant heat exchange of gas of band heat; Flue gas chilling assembly, convective heat exchange assembly all are fixedly set in the bottom in the pressure housing, and the convective heat exchange assembly is between flue gas chilling assembly and pressure housing; The desuperheater assembly is fixedly set in the below of convective heat exchange assembly, and slag bath is arranged at the bottom in the pressure housing, and the bottom of slag bath and the bottom of pressure housing form slag-drip opening jointly; Radiation heat transfer assembly, convective heat exchange assembly, desuperheater assembly, slag bath are positioned at pressure housing and form one.
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 vertically is located in the pressure housing, with the abundant heat exchange of gas of band heat; The 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 next part case, 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 next part case 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, and an 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; The extension downwards of described radiation water wall is arranged at the slag bath upper end.
Described radiation screen is formed by several standpipes row, and standpipe row outwards disperses with the center of heat reclamation device and is distributed in the radiation heat transfer chamber, and 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 next part case, radiation screen water inlet pipe, radiation screen fairlead, the lower end of radiation screen heating surface is communicated with radiation screen next part case, 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 next part case and radiation screen upper collecting chamber respectively, and are drawn out to outside the pressure housing.
Described flue gas chilling assembly comprises Quench gas entrance and the radiation water wall that extends downwards, and radiation water wall and the quench gas that extends gone into the interruption-forming gas mixing chamber downwards; Described Quench gas entrance is uniformly distributed on the radiation water wall, and extends to outside the pressure housing.
Described convective heat exchange assembly comprises vaporizer, superheater and economizer, and vaporizer, superheater and economizer are arranged between gas mixing chamber and the pressure housing from top to bottom successively.
Described vaporizer, superheater and economizer are formed by one group of spiral pipe respectively, and every group of spiral pipe comprises four helical layer endless tubes respectively, 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 next part case, 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 vaporizer next part case, the vaporizer water inlet pipe is communicated with vaporizer next part case, and the vaporizer fairlead is communicated with the vaporizer upper collecting chamber; Described superheater also comprises superheater upper collecting chamber, superheater next part case, 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 superheater next part case, the superheater water inlet pipe is communicated with superheater next part case, and the superheater fairlead is communicated with the superheater upper collecting chamber; Described economizer also comprises economizer upper collecting chamber, economizer next part case, economizer water inlet pipe, economizer fairlead, 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 economizer next part case, the economizer water inlet pipe is communicated with economizer next part case, 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 the pressure housing.
Described desuperheater assembly comprises desuperheating water water inlet pipe, desuperheating water collection case and a plurality of atomizing nozzle, and atomizing nozzle is that the center of circle evenly distributes by circumference with the center of heat reclamation device, and shower nozzle is arranged downwards; Atomizing nozzle is communicated with desuperheating water collection case, and the desuperheating water water inlet manifold is communicated with desuperheating water collection case.
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.
Principle of work of the present utility model is as follows:
After the synthetic gas of high temperature and melting slag went out vapourizing furnace, the long narrow synthetic gas entrance by this device top entered the radiation heat transfer assembly, in the radiation heat transfer chamber, high-temperature synthesis gas stream and melting slag is carried out the radiation water-cooled cooling;
Then, synthetic gas and melting slag enter gas mixing chamber after passing the radiation heat transfer chamber, mix further cooling rapidly in gas mixing chamber with the Quench gas that feeds;
Cooled melting slag directly enters slag bath, and in slag bath, melting slag mixes sharply cooling with water, forms the solid-state lime-ash of high rigidity, and solid-state lime-ash is discharged with water;
After synthetic gas cooled off through gas mixing chamber, the reflexed of the process slag bath water surface upwards carried out mist cooling by the desuperheater assembly; In entering the convective heat exchange assembly, flow through vaporizer, superheater, economizer successively and carry out the heat exchange cooling, discharged by syngas outlet.
The beneficial effects of the utility model are as follows:
(1) the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler of the band flue gas Quench that provides of the utility model can be used for the IGCC power generation system, the sensible heat generation high pressure steam or the middle pressure steam that absorb crude synthesis gas are used for generating, whole energy utilization rate improves greatly, has the high advantage of energy recovery utilization ratio.
(2) the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler of the band flue gas Quench that provides of the utility model, radiation heat transfer, flue gas Quench, convective heat exchange are effectively combined, reduced the waste heat boiler overall dimensions effectively, it is comparatively convenient to make, transport and install.
(3) the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler of the band flue gas Quench that provides of the utility model has regulating measure, arrange the atomizing spray Desuperheating device in convective heat exchange assembly bottom, 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 utility model;
Fig. 2 is the A-A cross section cross-sectional schematic among the utility model Fig. 1;
Fig. 3 is the B-B cross section cross-sectional schematic among the utility model Fig. 1;
Fig. 4 is the C-C cross section cross-sectional schematic among the utility model Fig. 1;
Fig. 5 is the partial schematic diagram of the I portion among the utility model Fig. 1;
Wherein, Reference numeral is: 1 synthetic gas entrance, the 1-1 refractory liner, 2 radiation heat transfer assemblies, 3 flue gas Quench assemblies, 4 slag baths, 5 desuperheater assemblies, 6 convective heat exchange assemblies, 7 pressure housings, 8 syngas outlet, 9 radiation water wall, 9-1 radiation water wall upper collecting chamber, 9-2 radiation water wall next part case, 9-3 radiation water wall fairlead, 9-4 radiation water wall water inlet pipe, 9-5 radiation water wall surface, 9-6 standpipe, 10 radiation screens, 10-1 radiation screen upper collecting chamber, 10-2 radiation screen next part case, 10-3 radiation screen water inlet pipe, 10-4 radiation screen fairlead, 11 Quench gas entrances, 12 gas mixing chambers, 13 convective heat exchange water wall, 13-1 convective heat exchange water wall upper collecting chamber, 13-2 convective heat exchange water wall next part case, 13-3 convective heat exchange water wall water inlet pipe, 13-4 convective heat exchange water wall fairlead, 13-5 convective heat exchange water wall surface, the 13-6 standpipe, 14 vaporizers, 14-1 vaporizer upper collecting chamber, 14-2 vaporizer next part case, 14-3 vaporizer water inlet pipe, 14-4 vaporizer fairlead, 14-5 vaporizer spiral pipe, 15 superheaters, 15-1 superheater upper collecting chamber, 15-2 superheater next part case, 15-3 superheater water inlet pipe, 15-4 superheater fairlead, 16 economizers, 16-1 economizer upper collecting chamber, 16-2 economizer next part case, 16-3 economizer water inlet pipe, 16-4 economizer fairlead, 18 spiral pipes.
Embodiment
Shown in Fig. 1-5, the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler of band flue gas Quench of the present invention comprises synthesis gas entrance 1, radiation heat transfer assembly 2, flue gas Quench assembly 3, slag bath 4, desuperheater assembly 5, convective heat exchange assembly 6, pressure housing 7.
It is characterized in that this heat reclamation device comprises radiation heat transfer assembly 2, flue gas Quench assembly 3 and convective heat exchange assembly 6 three parts.Radiation heat transfer is on top, and flue gas Quench and convective heat exchange are in the bottom.
The upper end of described pressure housing 7 sidewalls is provided with syngas outlet 8, and the upper cover of pressure housing 7 is provided with synthesis gas access road 1, joins with radiation heat transfer assembly 2.
The synthesis gas entrance 1 of described heat reclamation device is a long narrow passage, and inwall is refractory liner 1-1.
Described radiation heat transfer assembly 2 vertically is located in the pressure housing 7, with the abundant heat exchange of gas of band heat; Described radiation heat transfer assembly 2 comprises radiation water wall 9 and radiation screen 10, radiation water wall 9 is cylindrical walls that the standpipe 9-6 by several parallel longitudinal settings surrounds, two adjacent standpipe 9-6 are by being welded to connect, the centre of cylindrical wall is the radiation heat transfer chamber, cylindrical wall extends downward slag bath 4 upper ends, and radiation screen 10 is positioned at the cylindrical wall upper end; Radiation heat transfer assembly 2 also comprises radiation water wall upper collecting chamber 9-1, radiation water wall next part case 9-2, radiation water wall water inlet pipe 9-3, radiation water wall fairlead 9-4, radiation water wall upper collecting chamber 9-1 is communicated with the upper end of each standpipe 9-6, radiation water wall next part case 9-2 is communicated with the lower end of each standpipe 9-6, the end of radiation water wall water inlet pipe 9-3 and pressure housing 7 are affixed and be located at the outside of pressure housing 7, the other end of radiation water wall water inlet pipe 9-3 is communicated with radiation water wall upper collecting chamber 9-1, and the end of radiation water wall fairlead 9-4 and the upper cover of pressure housing 7 are affixed, the other end is communicated with radiation water wall upper collecting chamber 9-1.
Described radiation screen 10 is formed by several standpipes row, and standpipe row outwards disperses with the center of heat reclamation device and is distributed in the radiation heat transfer chamber, and each standpipe row is formed by some standpipe 9-6, and adjacent two standpipe 9-6 of standpipe row are close to setting; Radiation heat transfer assembly 2 also comprises radiation screen upper collecting chamber 10-1, radiation screen next part case 10-2, radiation screen water inlet pipe 10-3, radiation screen fairlead 10-4, the lower end of radiation screen 10 is communicated with radiation screen next part case 10-2, the upper end of radiation screen 10 is communicated with radiation screen upper collecting chamber 10-1, radiation screen water inlet pipe 10-3 and radiation screen fairlead 10-4 are communicated with radiation screen next part case 10-2 and radiation screen upper collecting chamber 10-1 respectively, and are drawn out to outside the pressure housing 7.
Described flue gas Quench assembly 3 comprises Quench gas entrance 11 and gas mixing chamber 12, and the radiation water wall 9 of gas mixing chamber 12 below radiation screen 10 forms with Quench gas entrance 11; Described Quench gas entrance 11 is uniformly distributed on the radiation water wall 9, and extends to outside the pressure housing 7.Described Quench gas entrance 11 can arrange two as the case may be, and perhaps four, perhaps six, perhaps eight, etc., only need be evenly distributed on the radiation water wall, and extend to outside the pressure housing 7.
Described convective heat exchange assembly 6 is positioned at the skin of flue gas Quench assembly 3, comprises convective heat exchange water wall 13, vaporizer 14, superheater 15 and economizer 16.Convective heat exchange water wall 13 is made up of convective heat exchange water wall upper collecting chamber 13-1, convective heat exchange water wall next part case 13-2, convective heat exchange water wall water inlet pipe 13-3, convective heat exchange water wall fairlead 13-4 and convective heat exchange water wall surface 13-5.Convective heat exchange water wall surface 13-5 is made of a plurality of standpipe 13-6, and a plurality of standpipe 13-6 surround columniform cavity, forms the radiation water wall.
Described vaporizer 14, superheater 15 and economizer 16 are made up of three groups of spiral pipes 18, and spiral pipe 18 skins are convective heat exchange water wall 13, and the spiral pipe internal layer is radiation water wall 9.Every group of spiral pipe 18 by four layers closely around the spiral endless tube forms, group with organize between the stagger arrangement layout.Vaporizer 14, superheater 15 and economizer 16 are arranged in the annular space between radiation water wall 9 and the convective heat exchange water wall 13 successively.Described vaporizer 14 spiral pipes upper end, lower end are communicated with vaporizer upper collecting chamber 14-1, next part case 14-2 respectively, and vaporizer water inlet pipe 14-3 is communicated with vaporizer next part case 14-2, and vaporizer fairlead 14-4 is communicated with vaporizer upper collecting chamber 14-1; Described superheater 15 spiral pipes upper end, lower end are communicated with superheater upper collecting chamber 15-1, next part case 15-2 respectively, and superheater water inlet pipe 15-3 is communicated with vaporizer next part case 15-2, and superheater fairlead 15-4 is communicated with superheater upper collecting chamber 15-1; Described economizer 16 spiral pipes upper end, lower end are communicated with economizer upper collecting chamber 16-1, next part case 16-2 respectively, and economizer water inlet pipe 16-3 is communicated with economizer next part case 16-2, and economizer fairlead 16-4 is communicated with economizer upper collecting chamber 16-1.
Described desuperheater 5 is positioned at convective heat exchange 6 bottoms, is made up of desuperheating water water inlet pipe 5-1, desuperheating water collection case 5-2 and a plurality of atomizing nozzle 5-3, and atomizing nozzle 5-3 evenly distributes according to circumference, and shower nozzle is arranged downwards.Described atomizing nozzle 5-3 is communicated with desuperheating water collection case 5-2, and desuperheating water water inlet manifold 5-1 is communicated with desuperheating water collection case 5-2.
Described slag bath 4 is in the bottom of heat reclamation device, and slag bath 4 upper ends are connected with convective heat exchange water wall 13 lower ends, and the lower end of slag bath 4 lower ends and pressure housing 7 is connected to form slag-drip opening 4-1.Look coal ash slagging scorification situation and can install dregs breaker additional.
The utility model is the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler of band flue gas Quench, and its working process is:
Described heat reclamation device is the hybrid heat reclamation device of a kind of revolution shape, and radiation heat transfer is on top, and flue gas Quench and convective heat exchange are in the bottom, and convective heat exchange is positioned at the skin of flue gas Quench part.High-temperature synthesis gas stream enters heat reclamation device with grey slag from the synthetic gas entrance, downwards by the radiation heat transfer chamber with high-order heat recuperation after, mixes with the Quench gas that comes from the outside, pass flue gas Quench gas mixing chamber partly.After temperature reduced rapidly, lime-ash entered in the slag bath, and the air-flow reflexed upwards passes through desuperheater assembly and convective heat exchange assembly, further cooling cooling, and reclaim a large amount of sensible heats.This heat reclamation device effectively combines radiation heat transfer, flue gas Quench and convective heat exchange, and equipment volume reduces greatly, and has as much as possiblely reclaimed sensible heat that high-temperature synthesis gas is with.
The synthesis gas entrance of heat reclamation device is long narrow throat's passage, and inwall is refractory liner.After high-temperature synthesis gas and grey slag (about 1400 ℃ of temperature) went out vapourizing furnace, the throat's passage by long narrow entered the radiation heat transfer assembly with higher gas velocity.
The radiation heat transfer assembly is made up of the screen of the radiation heat transfer in radiation heat transfer chamber and the chamber.High-temperature synthesis gas and grey slag enter in the water wall chamber, the radiation water wall around in the mode of radiative transfer heat being passed to.Because circulation area enlarges, to splash all around, sufficiently cooled from leaving throat's passage to the process that arrives the radiation water wall, curing loses agglutinating value(of coal) to grey slag, moves downward under action of gravity under the air-flow effect.Radiation heat transfer screen in the water wall chamber has increased the radiation heat transfer face, has reduced the volume of radiation heat transfer assembly, makes the heat exchange better effects if.
After synthetic gas and lime-ash pass the radiation heat transfer chamber, mix with Quench gas, by further cooling rapidly of gas mixing chamber.Lime-ash solidifies and falls into the bottom slag bath.
Slag bath is in the bottom of flue gas Quench part.Lime-ash falls into slag bath, mixes sharply cooling with water, forms the solid-state lime-ash of high rigidity, enters in the lock slag ladle with water.Look the slagging scorification situation of coal ash, can install dregs breaker additional, guarantee the reliable and stable operation of dreg removing system.
The desuperheater assembly is in the bottom of convective heat exchange assembly, carries the flying dust that part is not condensed from the synthetic gas that the flue gas Quench is partly come out secretly, and condense in the place at the desuperheater assembly.The existence of desuperheater assembly has reduced the slagging scorification of convective heat exchange assembly, and can control the synthetic gas temperature that enters the convective heat exchange face, guarantees the operation of its normal safety.
The convective heat exchange assembly is made up of some groups of spiral pipes, and spiral pipe is outer to be the radiation water wall.Every group of spiral pipe by four layers closely around the spiral endless tube forms every group of spiral pipe stagger arrangement layout.Synthetic gas through the draining cooling flows through vaporizer, superheater, economizer successively and carries out the heat exchange cooling, is discharged by syngas outlet.
Claims (10)
1. be with the hybrid heat reclamation device of integrated revolution shape radiation preheating of flue gas Quench, it is characterized in that: comprise pressure housing, synthetic gas entrance, radiation heat transfer assembly, flue gas chilling assembly, convective heat exchange assembly, desuperheater assembly, slag bath, syngas outlet, the synthetic gas entrance is positioned at the top of pressure housing, and syngas outlet is positioned at the upper end of pressure housing sidewall; The radiation heat transfer assembly is fixed at the top in the pressure housing; Flue gas chilling assembly, convective heat exchange assembly all are fixedly set in the bottom in the pressure housing, and the convective heat exchange assembly is between flue gas chilling assembly and pressure housing; The desuperheater assembly is fixedly set in the below of convective heat exchange assembly, and slag bath is arranged at the bottom in the pressure housing, and the bottom of slag bath and the bottom of pressure housing form slag-drip opening jointly; Radiation heat transfer assembly, convective heat exchange assembly, desuperheater assembly, slag bath are positioned at pressure housing and form one.
2. the hybrid heat reclamation device of integrated revolution shape 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 heat reclamation device of integrated revolution shape radiant boiler preboiler according to claim 1, it is characterized in that: described radiation heat transfer assembly vertically is located in the pressure housing; 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, and cylindrical wall extends downward the slag bath upper end, and radiation screen is positioned on the cylindrical wall; The radiation heat transfer assembly also comprises radiation water wall upper collecting chamber, radiation water wall next part case, 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 next part case 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, and an 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 heat reclamation device of integrated revolution shape radiant boiler preboiler according to claim 3, it is characterized in that: described radiation screen is formed by several standpipes row, standpipe 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 next part case, radiation screen water inlet pipe, radiation screen fairlead, the lower end of radiation screen heating surface is communicated with radiation screen next part case, 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 next part case and radiation screen upper collecting chamber respectively, and are drawn out to outside the pressure housing.
5. according to claim 3 or the hybrid heat reclamation device of 4 described integrated revolution shape radiant boiler preboilers, it is characterized in that: described flue gas Quench assembly comprises Quench gas entrance and gas mixing chamber, and radiation water wall and the Quench gas of gas mixing chamber below radiation screen is gone into interruption-forming; Described Quench gas entrance is uniformly distributed on the radiation water wall, and extends to outside the pressure housing.
6. the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler according to claim 1, it is characterized in that: described convective heat exchange assembly comprises vaporizer, superheater and economizer, and vaporizer, superheater and economizer are arranged between gas mixing chamber and the pressure housing from top to bottom successively.
7. the hybrid heat reclamation device of integrated revolution shape 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 four helical layer endless tubes respectively, between every two-layer spiral endless tube certain distance is arranged, every helical layer endless tube by pipe closely around forming.
8. the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler according to claim 7, it is characterized in that: described vaporizer also comprises vaporizer upper collecting chamber, vaporizer next part case, 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 vaporizer next part case, the vaporizer water inlet pipe is communicated with vaporizer next part case, and the vaporizer fairlead is communicated with the vaporizer upper collecting chamber; Described superheater also comprises superheater upper collecting chamber, superheater next part case, 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 superheater next part case, the superheater water inlet pipe is communicated with superheater next part case, and the superheater fairlead is communicated with the superheater upper collecting chamber; Described economizer also comprises economizer upper collecting chamber, economizer next part case, economizer water inlet pipe, economizer fairlead, 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 economizer next part case, the economizer water inlet pipe is communicated with economizer next part case, 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 the pressure housing.
9. the hybrid heat reclamation device of integrated revolution shape radiant boiler preboiler according to claim 1, it is characterized in that: described desuperheater assembly comprises desuperheating water water inlet pipe, desuperheating water collection case and a plurality of atomizing nozzle, atomizing nozzle is that the center of circle evenly distributes by circumference with the center of heat reclamation device, and shower nozzle is arranged downwards; Atomizing nozzle is communicated with desuperheating water collection case, and the desuperheating water water inlet manifold is communicated with desuperheating water collection case.
10. the hybrid heat reclamation device of integrated revolution shape 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206786368U CN203128514U (en) | 2012-12-11 | 2012-12-11 | Integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206786368U CN203128514U (en) | 2012-12-11 | 2012-12-11 | Integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128514U true CN203128514U (en) | 2013-08-14 |
Family
ID=48936512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206786368U Expired - Fee Related CN203128514U (en) | 2012-12-11 | 2012-12-11 | Integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203128514U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977931A (en) * | 2012-12-11 | 2013-03-20 | 中国东方电气集团有限公司 | Integrated rotary radiation preheating mixing type heat recovery device with smoke chilling function |
| CN103673592A (en) * | 2013-12-27 | 2014-03-26 | 中冶长天国际工程有限责任公司 | Method and system for parallel preheating of fuel gas and combustion air for sintering ignition furnace |
| CN111503609A (en) * | 2020-04-09 | 2020-08-07 | 哈尔滨锅炉厂有限责任公司 | High-efficient low-cost pressure boost radiation waste boiler heating surface structure |
-
2012
- 2012-12-11 CN CN2012206786368U patent/CN203128514U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977931A (en) * | 2012-12-11 | 2013-03-20 | 中国东方电气集团有限公司 | Integrated rotary radiation preheating mixing type heat recovery device with smoke chilling function |
| CN103673592A (en) * | 2013-12-27 | 2014-03-26 | 中冶长天国际工程有限责任公司 | Method and system for parallel preheating of fuel gas and combustion air for sintering ignition furnace |
| CN103673592B (en) * | 2013-12-27 | 2015-08-05 | 中冶长天国际工程有限责任公司 | The method and system of the combustion gas of a kind of preheating, sintering, igniting stove in parallel and combustion air |
| CN111503609A (en) * | 2020-04-09 | 2020-08-07 | 哈尔滨锅炉厂有限责任公司 | High-efficient low-cost pressure boost radiation waste boiler heating surface structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103013580A (en) | Integrated bunch type radiant boiler and preheating boiler mixed heat recovery device | |
| CN102977925B (en) | Mixed energy utilization device for integrated rotary radiant boiler preheating boiler | |
| CN102492486B (en) | Double-sided water-wall cylinder-type synthetic gas cooler | |
| CN103013577B (en) | Integral rotational radiation preheating mixing energy utilization device with flue gas chilling | |
| CN101781586B (en) | High-temperature synthesis gas sensible heat recovery device | |
| CN102213409A (en) | Double-barrel water cooled wall type radiation waste boiler with adjusting function and industrial application thereof | |
| CN102796570B (en) | Novel composite type high-temperature raw gas cooling and washing equipment | |
| CN102786992B (en) | Radiation heat-convection integrated synthesis gas cooler | |
| CN203128513U (en) | Integrated rotary radiation preheating mixed type energy utilization device with smoke gas chilling | |
| CN106433790A (en) | Gasification equipment capable of preventing slag blockage and provided with heat recovery device | |
| CN202849349U (en) | Dry pulverized coal graded compression gasification device | |
| CN202898362U (en) | Partially chilled dry pulverized coal or coal water slurry gasification system | |
| CN203128514U (en) | Integrated rotary radiation preheating mixed type heat recovery device with smoke gas chilling | |
| CN103013579B (en) | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function | |
| CN103013581B (en) | Integrated rotation type radiant boiler and preheating boiler mixed heat recovery unit | |
| CN102977931B (en) | Integrated rotary radiation preheating mixing type heat recovery device with smoke chilling function | |
| CN108165311A (en) | A kind of gasification system for recycling high temperature sensible heat | |
| CN106010663A (en) | Coal gasification device with waste boiler | |
| CN202989074U (en) | Integrated rotary radiation boiler and pre-boiler mixed energy utilization device | |
| CN202989083U (en) | Integrated rotary radiation boiler and pre-boiler mixed energy utilization device | |
| CN202936392U (en) | Radiation and convection heat exchange integrated synthesis gas cooler | |
| CN203797613U (en) | Medium-temperature medium-pressure waste heat boiler for biomass synthetic gas cooling | |
| CN209481581U (en) | Gasification system | |
| CN203128512U (en) | Integrated beam-like radiation preheating mixed type heat recovery device with smoke gas chilling | |
| CN201028474Y (en) | Double-heating surface radiation type waste heat boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20181211 |