CN203128512U - Integrated beam-like radiation preheating mixed type heat recovery device with smoke gas chilling - Google Patents
Integrated beam-like radiation preheating mixed type heat recovery device with smoke gas chilling Download PDFInfo
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- CN203128512U CN203128512U CN2012206783942U CN201220678394U CN203128512U CN 203128512 U CN203128512 U CN 203128512U CN 2012206783942 U CN2012206783942 U CN 2012206783942U CN 201220678394 U CN201220678394 U CN 201220678394U CN 203128512 U CN203128512 U CN 203128512U
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- 230000005855 radiation Effects 0.000 title claims abstract description 175
- 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 65
- 239000002893 slag Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 171
- 239000006200 vaporizer Substances 0.000 claims description 62
- 238000012546 transfer Methods 0.000 claims description 46
- 238000010791 quenching Methods 0.000 claims description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000003546 flue gas Substances 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000002918 waste heat Substances 0.000 abstract description 13
- 239000003245 coal Substances 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000002309 gasification Methods 0.000 abstract description 10
- 238000010248 power generation Methods 0.000 abstract description 7
- 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 13
- 238000003786 synthesis reaction Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 11
- 239000002956 ash Substances 0.000 description 8
- 230000035939 shock Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000003818 cinder Substances 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000013517 stratification Methods 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
- 239000003034 coal gas Substances 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
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 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
- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to an integrated beam-like 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 entering 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 beam-like 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 pencil 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 ".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, dross 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 vapourizing furnace high-temperature synthesis gas outlet with synthetic gas Quench 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 also there are complex structure, work-ing life problems such as weak point, failure rate height in waste heat boiler of the prior art, 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, reduced the heat exchange effect of counter current boiler, need add than the more Quench gas of design Quench tolerance for guaranteeing heat exchange.
(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, and facility investment is big, and it is big to take up room, and the simultaneity factor reliability of operation is also owing to the complicacy 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 at defective and the deficiency of vapourizing furnace waste heat boiler of the prior art, the hybrid heat reclamation device of integrated pencil radiant boiler preboiler of band flue gas Quench is provided, advantage in conjunction with waste heat boiler in Shell bed pulverized coal gasification technology and the GE coal water slurry gasification technology, 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 heat reclamation device of integrated pencil radiation preheating of band flue gas Quench, it is characterized in that: comprise pressure housing, synthetic gas entrance, radiation heat transfer assembly, flue gas Quench assembly, convective heat exchange 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 Quench 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 Quench assembly and pressure housing; 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, flue gas Quench assembly, convective heat exchange 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 comprises radiation water wall and radiation screen, and the radiation water wall is made up of 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.A plurality of standpipes be arranged in parallel, surround columniform cavity, form membrane type radiation water wall, between two adjacent standpipes by being welded to connect.The upper end of each standpipe is communicated with radiation water wall upper collecting chamber, and the lower end of each standpipe is communicated with radiation water wall next part case.One end of radiation water wall water inlet pipe and pressure housing are affixed and be located at outside, the other end and the radiation water wall upper collecting chamber UNICOM of pressure housing, an end of radiation water wall fairlead and the upper cover of pressure housing is affixed, the other end and radiation water wall upper collecting chamber UNICOM.
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 next part case, radiation water wall water inlet pipe, radiation water wall fairlead, 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 is affixed with pressure housing 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 is affixed with the upper cover of pressure housing, the other end is communicated with radiation water wall upper collecting chamber.
Described radiation screen is formed by several standpipes row, and all standpipe 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 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 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 next part case, 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 convective heat exchange water wall upper collecting chamber, the lower end of convective heat exchange water wall is communicated with convective heat exchange water wall next part case, convective heat exchange water wall water inlet pipe is communicated with convective heat exchange water wall next part case, 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 the pressure housing.
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, 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 economizer next part case, and 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 flue gas Quench assembly comprises chiller inlet pipe, shock chamber, and the top cavity in the slag bath evenly distributes and the pressure housing outside according to circumference in the shock chamber on every side as the shock chamber, can set two as required, perhaps four, the perhaps six roots of sensation, perhaps Quench gas inlet pipe such as eight.
The upper end of described slag bath is connected with the lower end of convective heat exchange water wall, and the lower end of slag bath lower end and pressure housing is connected to form slag-drip opening, looks coal ash slagging scorification situation and can install dregs breaker additional.
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;
After high-temperature synthesis gas stream enters heat reclamation device with melting slag from the synthetic gas entrance, enter the radiation heat transfer assembly by long narrow synthetic gas entrance, in the radiation heat transfer chamber, high-temperature synthesis gas stream and melting slag are carried out the radiation water-cooled cooling;
Then, high-temperature synthesis gas stream and melting slag continue to enter flue gas Quench assembly downwards, mix with the Quench gas that comes from the outside;
After lowering the temperature rapidly by flue gas Quench assembly, lime-ash enters in the slag bath, melting slag mixes sharply cooling with water, form the solid-state lime-ash of high rigidity, solid-state lime-ash is discharged with water, and synthetic air then reflexed upwards passes through the convective heat exchange assembly, in, 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:
The hybrid heat reclamation device of integrated pencil radiant boiler preboiler of the band flue gas Quench that the utility model provides 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;
The hybrid heat reclamation device of integrated pencil radiant boiler preboiler of the band flue gas Quench that the utility model provides, 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.
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 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 slag baths, cinder notch under the 3-1,4 flue gas Quench assemblies, the 4-1 shock chamber, 5 convective heat exchange assemblies, 6 pressure housings, 7 vaporizers, 7-1 vaporizer upper collecting chamber, 7-2 vaporizer next part case, 7-3 vaporizer water inlet pipe, 7-4 vaporizer fairlead, 8 superheaters, 8-1 superheater upper collecting chamber, 8-2 superheater next part case, 8-3 superheater water inlet pipe, 8-4 superheater fairlead, 9 economizers, 9-1 economizer upper collecting chamber, 9-2 next part economizer case, 9-3 economizer water inlet pipe, 9-4 economizer fairlead, 10 convective heat exchange water wall, 10-1 convective heat exchange water wall upper collecting chamber, 10-2 convective heat exchange water wall next part case, 10-3 convective heat exchange water wall water inlet pipe, 10-4 convective heat exchange water wall fairlead, 11 radiation screens, 11-1 radiation screen upper collecting chamber, 11-2 radiation screen next part case, 11-3 radiation screen water inlet pipe, 11-4 radiation screen fairlead, 11-5 radiation screen heating surface, 12 radiation water wall, 12-1 radiation water wall upper collecting chamber, 12-2 radiation water wall next part case, 12-3 radiation water wall fairlead, 12-4 radiation water wall water inlet pipe, 12-5 radiation water wall surface, 12-6 standpipe, 13 syngas outlet, 14 spiral pipes, 15 spiral endless tubes.
Embodiment
Shown in Fig. 1-4, the hybrid heat reclamation device of integrated pencil radiation preheating of band flue gas Quench comprises synthetic gas entrance 1, radiation heat transfer assembly 2, flue gas Quench assembly 4, slag bath 3, convective heat exchange assembly 5, pressure housing 6, syngas outlet 13.
Synthetic gas entrance 1 is positioned at the top of pressure housing 6, and syngas outlet 13 is positioned at the upper end of pressure housing 6 sidewalls, and slag bath 3 is arranged at the bottom in the pressure housing 6, the common cinder notch 3-1 down that forms in the bottom of the bottom of slag bath 3 and pressure housing 6; Radiation heat transfer assembly 2 is fixed at the top in the pressure housing 6, with the abundant heat exchange of gas of band heat; Flue gas Quench assembly 4 is fixedly set in the upper end of slag bath 3, and is positioned at the lower end of radiation heat transfer assembly 2, convective heat exchange assembly 5; Radiation heat transfer assembly 2, convective heat exchange assembly 5, flue gas Quench assembly 4, slag bath 3 are positioned at pressure housing 6 and form one.
Described synthetic gas entrance 1 is a long narrow passage, and the inwall of this synthetic gas entrance 1 is refractory liner 1-1.
Described radiation heat transfer assembly 2 comprises radiation water wall 12 and radiation screen 11, radiation screen 11 corresponding to radiation water wall 12 with radiation water wall surface 12-5 in, radiation water wall 12 is cylindrical walls that the standpipe 12-6 by several parallel longitudinal settings surrounds, two adjacent standpipe 12-6 are by being welded to connect, and the centre of cylindrical wall is the radiation heat transfer chamber; Radiation heat transfer assembly 2 also comprises radiation water wall upper collecting chamber 12-1, radiation water wall next part case 12-2, radiation water wall water inlet pipe 12-4, radiation water wall fairlead 12-3, radiation water wall upper collecting chamber 12-2 is communicated with the upper end of each standpipe 12-6, radiation water wall next part case 12-2 is communicated with the lower end of each standpipe 12-6, the end of radiation water wall water inlet pipe 12-4 and pressure housing 6 are affixed and be located at the outside of pressure housing 6, the other end of radiation water wall water inlet pipe 12-4 is communicated with radiation water wall upper collecting chamber 12-1, and the end of radiation water wall fairlead 12-3 and the upper cover of pressure housing 6 are affixed, the other end is communicated with radiation water wall upper collecting chamber 12-1.
Described radiation screen 11 is formed by several standpipes row, and all standpipe 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 of standpipe row are close to setting; Radiation heat transfer assembly 2 also comprises radiation screen upper collecting chamber 11-1, radiation screen next part case 11-2, radiation screen water inlet pipe 11-3, radiation screen fairlead 11-4, the lower end of radiation screen heating surface 11-5 is communicated with radiation screen next part case 11-2, the upper end of radiation screen heating surface 11-5 is communicated with radiation screen upper collecting chamber 11-1, radiation screen water inlet pipe 11-3 and radiation screen fairlead 11-4 are communicated with radiation screen next part case 11-2 and radiation screen upper collecting chamber 11-1 respectively, and are drawn out to outside the pressure housing 6.
Described convective heat exchange assembly 5 comprises convective heat exchange water wall 10, vaporizer 7, superheater 8 and economizer 9, vaporizer 7, superheater 8 and economizer 9 distribute from top to bottom successively, the cylindrical wall that convective heat exchange water wall 10 is surrounded by the standpipe of several parallel longitudinal settings, two adjacent standpipes are by being welded to connect, and vaporizer 7, superheater 8 and economizer 9 are positioned at the centre of cylindrical wall.
Described convective heat exchange water wall 10 also comprises convective heat exchange water wall upper collecting chamber 10-1, convective heat exchange water wall next part case 10-2, convective heat exchange water wall water inlet pipe 10-3, convective heat exchange water wall fairlead 10-4, the upper end of convective heat exchange water wall 10 is communicated with convective heat exchange water wall upper collecting chamber 10-1, the lower end of convective heat exchange water wall 10 is communicated with convective heat exchange water wall next part case 10-2, convective heat exchange water wall water inlet pipe 10-3 is communicated with convective heat exchange water wall next part case 10-2, and convective heat exchange water wall fairlead 10-4 is communicated with convective heat exchange water wall upper collecting chamber 10-1; Convective heat exchange water wall water inlet pipe 10-3 and convective heat exchange water wall fairlead 10-4 all extend to outside the pressure housing 6.
Described vaporizer 7, superheater 8 and economizer 9 are formed by one group of spiral pipe 14 respectively, every group of spiral pipe 14 comprises four helical layer endless tubes 15 respectively, between every two-layer spiral endless tube 15 certain distance is arranged, every helical layer endless tube 15 by pipe closely around forming.
Described vaporizer 7 also comprises vaporizer upper collecting chamber 7-1, vaporizer next part case 7-2, vaporizer water inlet pipe 7-3, vaporizer fairlead 7-4, the upper end that forms the spiral pipe 14 of vaporizer 7 is communicated with vaporizer upper collecting chamber 7-1, the lower end that forms the spiral pipe 14 of vaporizer 7 is communicated with vaporizer next part case 7-2, vaporizer water inlet pipe 7-3 is communicated with vaporizer next part case 7-2, and vaporizer fairlead 7-4 is communicated with vaporizer upper collecting chamber 7-1; Described superheater 8 also comprises superheater upper collecting chamber 8-1, superheater next part case 8-2, superheater water inlet pipe 8-3, superheater fairlead 8-4, the upper end that forms the spiral pipe 14 of superheater 8 is communicated with superheater upper collecting chamber 8-1, the lower end that forms the spiral pipe 14 of superheater 8 is communicated with superheater next part case 8-2, superheater water inlet pipe 8-3 is communicated with superheater next part case 8-2, and superheater fairlead 8-4 is communicated with superheater upper collecting chamber 8-1; Described economizer 9 also comprises economizer upper collecting chamber 9-1, economizer next part case 9-2, economizer water inlet pipe 9-3, economizer fairlead 9-4, and the upper end that forms the spiral pipe 14 of superheater 9 is communicated with economizer upper collecting chamber 9-1; The lower end that forms the spiral pipe 14 of economizer 9 is communicated with economizer next part case 9-2, and economizer water inlet pipe 9-3 is communicated with economizer next part case 9-2, and economizer fairlead 9-4 is communicated with economizer upper collecting chamber 9-1; Vaporizer water inlet pipe 7-3, vaporizer fairlead 7-4, superheater water inlet pipe 8-3, superheater fairlead 8-4, economizer water inlet pipe 9-3, economizer fairlead 9-4 all extend to outside the pressure housing 6.
Described flue gas Quench assembly 4 comprises chiller inlet pipe, the 4-1 of shock chamber, top cavity in the slag bath 3 is as the 4-1 of shock chamber, around the 4-1 of shock chamber, evenly distribute and pressure housing 6 outsides according to circumference, can set two as required, perhaps four, the perhaps six roots of sensation, perhaps Quench gas inlet pipe such as eight.
The upper end of described slag bath 3 is connected with the lower end of convective heat exchange water wall 10, and the lower end of slag bath 3 lower ends and pressure housing 6 is connected to form down cinder notch 3-1, looks coal ash slagging scorification situation and can install dregs breaker additional.
Principle of work of the present utility model is as follows:
Described heat reclamation device is the hybrid heat reclamation device of a kind of pencil, and radiation heat transfer is at internal layer, and the flue gas Quench is positioned at the radiation heat transfer bottom, and convective heat exchange is positioned at the skin of radiation heat transfer.After high-temperature synthesis gas stream goes out vapourizing furnace with grey slag (about 1400 ℃ of temperature), by long narrow synthetic gas entrance 1, enter the radiation heat transfer part with higher gas velocity, downwards by the radiation heat transfer chamber with high-order heat recuperation after, enter flue gas Quench assembly 4, mix with the Quench gas that comes from the outside, after temperature reduced rapidly, lime-ash entered in the slag bath 3, and the air-flow reflexed is upwards by convective heat exchange assembly 5, 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 radiation heat transfer part is made up of the screen of the radiation heat transfer in membrane wall chamber and the chamber.High-temperature synthesis gas and grey slag enter in the water wall chamber, the membrane wall around in the mode of radiative transfer heat being passed to.Because circulation area enlarges, to splash all around, sufficiently cooled from leaving passage to the process that arrives membrane 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 part, makes the heat exchange better effects if.
After synthetic gas and lime-ash pass the radiation heat transfer chamber, mix with Quench gas, rapidly cooling.Lime-ash solidifies and falls into bottom slag bath 3.The air-flow reflexed upwards enters the convective heat exchange part.
Slag bath 3 is in the bottom of flue gas Quench assembly 4.Lime-ash falls into slag bath 3, 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 convective heat exchange part is made up of some groups of spiral pipes, and the spiral pipe skin is membrane 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 after Quench flows through vaporizer 7, superheater, economizer successively and carries out the heat exchange cooling, discharges from syngas outlet.
Claims (9)
1. be with the hybrid heat reclamation device of integrated pencil radiation preheating of flue gas Quench, it is characterized in that: comprise pressure housing, synthetic gas entrance, radiation heat transfer assembly, flue gas Quench assembly, convective heat exchange 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 Quench 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 Quench assembly and pressure housing; 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, flue gas Quench assembly, convective heat exchange assembly, slag bath are positioned at pressure housing and form one.
2. the hybrid heat reclamation 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 heat reclamation device of integrated pencil 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 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, the centre of cylindrical wall is the radiation heat transfer chamber, cylindrical wall extends downward the slag bath upper end, and radiation screen is positioned at the cylindrical wall upper end; 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 pencil 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 pencil 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 pencil 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 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 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 pencil 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 pencil radiant boiler preboiler according to claim 1, it is characterized in that: the upper end of described slag bath is connected with convective heat exchange water wall lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206783942U CN203128512U (en) | 2012-12-11 | 2012-12-11 | Integrated beam-like radiation preheating mixed type heat recovery device with smoke gas chilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206783942U CN203128512U (en) | 2012-12-11 | 2012-12-11 | Integrated beam-like radiation preheating mixed type heat recovery device with smoke gas chilling |
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| Publication Number | Publication Date |
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| CN203128512U true CN203128512U (en) | 2013-08-14 |
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| CN2012206783942U Expired - Lifetime CN203128512U (en) | 2012-12-11 | 2012-12-11 | Integrated beam-like radiation preheating mixed type heat recovery device with smoke gas chilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013579A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
-
2012
- 2012-12-11 CN CN2012206783942U patent/CN203128512U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013579A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
| CN103013579B (en) * | 2012-12-11 | 2014-08-27 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
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