CN102767820A - Smoke waste heat utilizing system at tail of power station boiler applicable to operation in variable working condition - Google Patents
Smoke waste heat utilizing system at tail of power station boiler applicable to operation in variable working condition Download PDFInfo
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- CN102767820A CN102767820A CN2012102168296A CN201210216829A CN102767820A CN 102767820 A CN102767820 A CN 102767820A CN 2012102168296 A CN2012102168296 A CN 2012102168296A CN 201210216829 A CN201210216829 A CN 201210216829A CN 102767820 A CN102767820 A CN 102767820A
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- 239000002918 waste heat Substances 0.000 title abstract description 7
- 239000000779 smoke Substances 0.000 title abstract description 6
- 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
- 230000008018 melting Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 239000003517 fume Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chimneys And Flues (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention belongs to the technical field of energy saving of waste heat utilization, and particularly relates to a smoke waste heat utilizing system at the tail of a power station boiler applicable to operation in a variable working condition. The smoke waste heat utilizing system mainly consists of a back-heating side subsystem and a step type heat exchange subsystem distributed on a tail flue. A certain amount of condensation water is extracted from an inlet of a certain level heater in the back-heating side subsystem according to a boiler operation working condition, and flows into an inlet of the step type heat exchange subsystem by passing through an L1 pipeline through an outlet of the back-heating side subsystem; after carrying out heat exchange with boiler smoke through each level of heat exchanger pipe group arranged in the step type heat exchange subsystem, an outlet of the step type heat exchange subsystem is connected with an outlet of the certain level heater in the back-heating side subsystem through an L2 pipeline, so that system temperature and flow can be sensitively adjusted, and the system is enabled to be at an optimal operation working condition. Meanwhile, the heat exchange subsystem uses a step type improved film design; pipes of each level of a heat exchanger can be arranged in a double-staggered manner; and a flow guide plate is additionally arranged, so that the airflow resistance is reduced, and the heat conduction efficiency is improved.
Description
Technical field
The invention belongs to the energy conservation technical field of UTILIZATION OF VESIDUAL HEAT IN, particularly a kind of boiler tail flue gas bootstrap system that adapts to power plant's variable parameter operation.
The variation of boiler tail exhaust gas temperature during to power station unit variable parameter operation, but the design of the selecting type of grading control through the Tube Sheet of Heat Exchanger group and condensed water I/O mode realize the draw gas flexible utilization of heating condensate water of tail flue gas waste heat instead of part.Simultaneously,, improve the form design of heat exchanger, thereby guarantee the economy and the safe operation of heat exchange equipment under this operating mode to the actual conditions of boiler tail flue gas and circulation flue thereof.
Background technology
The energy-saving and emission-reduction of large electric power plant unit are the important energy source strategies of China.In China, the coal-burning power plant has consumed national nearly half the coal production, and the exhaust gas temperature of general coal-fired unit causes a large amount of low-grade energies directly to be arranged to environment about 120-140 ℃, brings huge residual heat resources waste.Along with rising steadily of coal energy prices in recent years; With coal is that basic cost of electricity-generating improves day by day; Each thermal power plant is faced with huge economizer pressure, constantly seeks to reduce coal consumption, application technology that the energy savings aspect is new, and strengthens relevant fund input.
Effective utilization of fume afterheat is the energy-conservation main path of coal-fired power station boiler; Utilize boiler tail flue gas waste heat heat-setting water; Can not only effectively reduce the exhaust gas temperature of boiler, improve boiler efficiency, and can squeeze the regenerative steam of part steam turbine through the heat that afterheat heat exchanger is imported hot system; Under the constant situation of steam turbine admission quantity of steam, squeezing draws gas returns steam turbine and continues the acting of expanding.Therefore, under the constant situation of fuel input quantity, the steam turbine power output is increased, improve the thermal efficiency and the economy of unit.
Reduce the exhaust gas temperature of boiler through heat recovery, though can improve boiler efficiency and power station economy, owing to usually contain in the low-temperature flue gas in the boiler tail just like SO
2, SO
3, NO
xDeng corrosive gas; Wall surface temperature drops to acid dew point when following, and the low temperature tube wall is prone to take place strong low-temperature flue gas corrosion, simultaneously with flue gas in flying dust to form with calcium sulfate be main cement-like material; The fume side flowing resistance is increased; The blower fan power consumption increases, and has aggravated the corrosion of tube wall, has a strong impact on the safety and economy operation of boiler.It is still fewer to be suitable for the special-purpose heat exchange equipment of boiler tail low-temperature flue gas UTILIZATION OF VESIDUAL HEAT IN at present, and is main with monoblock type light pipe heat exchanger how, and heat exchanger apparatus is big and the dust stratification etching problem is serious.
Summary of the invention
The objective of the invention is afterbody smoke evacuation that the variable parameter operation to fired power generating unit causes changes operating mode and causes the residual heat resources waste and propose a kind of boiler tail flue gas bootstrap system that adapts to power plant's variable parameter operation; It is characterized in that; The said station boiler tail flue gas bootstrap system that is applicable to variable parameter operation mainly is made up of backheat side sub 1 and the stagewise heat exchange subsystem 2 that is distributed in back-end ductwork.
Said backheat side sub 1 is made up of 5# low- pressure heater 3,6# low- pressure heater 4,7# low- pressure heater 5 and 6 series connection of 8# low-pressure heater; Connect the 7th valve in the porch of 5# low-pressure heater 3; Connect the 8th valve in the porch of 6# low-pressure heater 4; Connect the 9th valve in the porch of 7# low-pressure heater 5 and be connected the 10th valve respectively with porch at 8# low-pressure heater 6; Said the 7th valve, the 8th valve, the 9th valve and the 10th valve converge together 1 outlet of back backheat side sub, and are connected to the inlet of first order Tube Sheet of Heat Exchanger group 25 of the stagewise heat exchange subsystem 2 of back-end ductwork through the L1 pipeline; Main condensate pipeline exit at said 5# low- pressure heater 3,6# low- pressure heater 4,7# low- pressure heater 5 and 8# low-pressure heater 6 connects 18 valves, 19 valves, 20 valves and 21 valves respectively; Said 18 valves, 19 valves, 20 valves and 21 valves converge together the back and form backheat side sub 1 inlet, and be connected to through the L2 pipeline back-end ductwork stagewise heat exchange subsystem 2 outlet.
First order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28 are set in the stagewise heat exchange subsystem 2 of said back-end ductwork, and first order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28 are successively through 11 valves, 12 valves and the series connection of 13 valves; First order Tube Sheet of Heat Exchanger group 25 outlet connects 14 valves, 26 outlets of second level Tube Sheet of Heat Exchanger group again and connects 15 valves, 27 outlets of third level Tube Sheet of Heat Exchanger group again and connect 16 valves again 28 outlets are connected 17 valves again with fourth stage Tube Sheet of Heat Exchanger group; First order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28, said 14 valves, 15 valves, 16 valves and 17 valves converge stagewise heat exchange subsystem 2 outlets of back formation back-end ductwork together.
In the boiler tail flue gas bootstrap system of said adaptation power plant variable parameter operation TT temperature-measuring element and FT flow transmitter are installed.
The structure of said Tube Sheet of Heat Exchanger group is that adjacent parent tube 22 usefulness band steel fins 23 weldering systems constitute the membrane wall heat exchanger; The pad place of parent tube 22 and band steel fin 23 adopts the big fillet 24 of heap melting welding transition, and smooth smooth treatment is carried out on heap melting welding surface.Tube Sheet of Heat Exchanger group and the parallel placement of flue gas incoming flow, adopt between the Guan Zuyu pipe group along the form of row or stagger arrangement all can, pass the heat exchange effect to strengthen, wedge shape cowling panel 25 is set, to reduce wearing and tearing and conveniently to blow ash simultaneously between the pipe group.
The form that adopts stagger arrangement between the said Guan Zuyu pipe group be in the pipe group between each pipe row along between each pipe row of flue gas direction stagger arrangement 1/2 vertical intercept, adjacent tubes group along flue gas vertical direction stagger arrangement 1/2 horizontal intercept.
The invention has the beneficial effects as follows the boiler tail exhaust gas temperature dynamic change that the comprehensive fired power generating unit variable parameter operation of this optimization integrated system causes; And the heat demand of condensed water in bleeder heater; Through the classification off-the-line of design Tube Sheet of Heat Exchanger group and valve switch, the flow-control of pipeline; Realization is carried out the flux matched flexible utilization of ability to the waste heat of flue gas, guarantees that bootstrap system is in best heat recovery and safe operation operating mode.The design of heat exchanger hierarchical arrangement, it is convenient to change, and can change to failure level pipe group.Carry out Local treatment to the seriously corroded zone, utilize heap melting welding weldering to make knuckle, reduced rotation dead band, and helped further to promote the effect of streaming of membrane wall, thereby reduce the spot corrosion infringement that the corrosion dirt is piled up the heat exchanging organ pipe at rib Ji Chu.
Description of drawings
Fig. 1 is concrete pipeline and the valve control sketch map that integrated system is optimized in the fume afterheat utilization.
Fig. 2 is the sketch map that the fume afterheat of employing classification pipe group structure utilizes the membrane type heat exchanger.
The specific embodiment
The present invention provides a kind of station boiler tail flue gas bootstrap system that adapts to variable parameter operation.Explain below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1 is concrete pipeline and the valve control sketch map that integrated system is optimized in the fume afterheat utilization.This system mainly is made up of backheat side sub 1 and the stagewise heat exchange subsystem 2 that is distributed in back-end ductwork.Wherein, backheat side sub 1 is made up of 5# low- pressure heater 3,6# low- pressure heater 4,7# low- pressure heater 5 and 6 series connection of 8# low-pressure heater; Connect the 7th valve in the porch of 5# low-pressure heater 3; Connect the 8th valve in the porch of 6# low-pressure heater 4; Connect the 9th valve in the porch of 7# low-pressure heater 5 and be connected the 10th valve respectively with porch at 8# low-pressure heater 6; Said the 7th valve, the 8th valve, the 9th valve and the 10th valve converge together the back and form 1 outlet of backheat side sub, and are connected to the inlet of first order Tube Sheet of Heat Exchanger group 25 of the stagewise heat exchange subsystem 2 of back-end ductwork through the L1 pipeline; Main condensate pipeline exit at said 5# low- pressure heater 3,6# low- pressure heater 4,7# low- pressure heater 5 and 8# low-pressure heater 6 connects 18 valves, 19 valves, 20 valves and 21 valves respectively; Said 18 valves, 19 valves, 20 valves and 21 valves converge together the back and form backheat side sub 1 inlet, and be connected to through the L2 pipeline back-end ductwork stagewise heat exchange subsystem 2 outlet.
First order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28 are set in the stagewise heat exchange subsystem 2 of back-end ductwork, and first order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28 are successively through 11 valves, 12 valves and the series connection of 13 valves; First order Tube Sheet of Heat Exchanger group 25 outlet connects 14 valves, 26 outlets of second level Tube Sheet of Heat Exchanger group again and connects 15 valves, 27 outlets of third level Tube Sheet of Heat Exchanger group again and connect 16 valves again 28 outlets are connected 17 valves again with fourth stage Tube Sheet of Heat Exchanger group; First order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28, said 14 valves, 15 valves, 16 valves and 17 valves converge stagewise heat exchange subsystem 2 outlets of back formation back-end ductwork together.
Shown in Figure 2 is concrete heat exchanger structure sketch map in the stagewise heat exchange subsystem of back-end ductwork.Among the figure, the adjacent parent tube 22 usefulness band steel fins 23 weldering systems of forming heat exchanger constitute the membrane wall heat exchanger.The pad place of parent tube 22 and band steel fin 23 adopts the big fillet 24 of heap melting welding transition, and smooth smooth treatment is carried out on heap melting welding surface.Tube Sheet of Heat Exchanger group and the parallel placement of flue gas incoming flow, adopt between the Guan Zuyu pipe group along the form of row or stagger arrangement all can, recommend to adopt between the pipe group two stagger arrangement to arrange that the enhance heat transfer heat exchange is provided with cowling panel 25 simultaneously between the pipe group, to reduce wearing and tearing and conveniently to blow ash.The form that adopts stagger arrangement between the said Guan Zuyu pipe group be in the pipe group between each pipe row along between each pipe row of flue gas direction stagger arrangement 1/2 vertical intercept, adjacent tubes group along flue gas vertical direction stagger arrangement 1/2 horizontal intercept.
In power plant's actual motion; Can be according to the operating condition of boiler, extract a certain amount of main condensate from the 5#-8# low-pressure heater porch of backheat side sub 1; Compile the back through 7-the 10th valve respectively and form the inlet of backheat side sub 1 outlet through the first order Tube Sheet of Heat Exchanger group 25 of the stagewise heat exchange subsystem 2 of L1 pipeline inflow back-end ductwork; After first order Tube Sheet of Heat Exchanger group 25, second level Tube Sheet of Heat Exchanger group 26, third level Tube Sheet of Heat Exchanger group 27 and fourth stage Tube Sheet of Heat Exchanger group 28 and boiler smoke heat exchange are set in the stagewise heat exchange subsystem 2 of back-end ductwork; Export the inlet that is connected to backheat side sub 1 through the L2 pipeline from the stagewise heat exchange subsystem 2 of back-end ductwork, realize the extraction flow control that needs at different levels substitute; Can be according to the boiler tail exhaust gas temperature; Control the loading and the off-the-line of heat exchanger through the valve switch of control classification pipe group import and export; The listed sequence of separating of classification pipe group is: along the direction of flue gas incoming flow; From high temperature Guan Zuzhi cryotronl group off-the-line successively, thereby can obtain the hot-fluid of preferred temperature level.
Claims (4)
1.. boiler tail flue gas bootstrap system that adapts to power plant's variable parameter operation; It is characterized in that; The said station boiler tail flue gas bootstrap system that is applicable to variable parameter operation mainly is made up of backheat side sub (1) and the stagewise heat exchange subsystem (2) that is distributed in back-end ductwork;
Said backheat side sub (1) is made up of 5# low-pressure heater (3), 6# low-pressure heater (4), 7# low-pressure heater (5) and 8# low-pressure heater (6) series connection; Porch at 5# low-pressure heater (3) connects the 7th valve; Porch at 6# low-pressure heater (4) connects the 8th valve; Connect the 9th valve in the porch of 7# low-pressure heater (5) and be connected the 10th valve respectively with porch at 8# low-pressure heater (6); Said the 7th valve, the 8th valve, the 9th valve and the 10th valve converge together back backheat side sub (1) outlet, and are connected to the inlet of first order Tube Sheet of Heat Exchanger group (25) of the stagewise heat exchange subsystem (2) of back-end ductwork through the L1 pipeline; Main condensate pipeline exit at said 5# low-pressure heater (3), 6# low-pressure heater (4), 7# low-pressure heater (5) and 8# low-pressure heater (6) connects 18 valves, 19 valves, 20 valves and 21 valves respectively; Said 18 valves, 19 valves, 20 valves and 21 valves converge together the back and form backheat side sub (1) inlet, and be connected to through the L2 pipeline back-end ductwork stagewise heat exchange subsystem (2) outlet;
First order Tube Sheet of Heat Exchanger group (25), second level Tube Sheet of Heat Exchanger group (26), third level Tube Sheet of Heat Exchanger group (27) and fourth stage Tube Sheet of Heat Exchanger group (28) are set in the stagewise heat exchange subsystem (2) of said back-end ductwork, and first order Tube Sheet of Heat Exchanger group (25), second level Tube Sheet of Heat Exchanger group (26), third level Tube Sheet of Heat Exchanger group (27) and fourth stage Tube Sheet of Heat Exchanger group (28) are successively through 11 valves, 12 valves and the series connection of 13 valves; First order Tube Sheet of Heat Exchanger group (25) outlet connects 14 valves, second level Tube Sheet of Heat Exchanger group (26) outlet again and connects 15 valves, third level Tube Sheet of Heat Exchanger group (27) outlet again and connect 16 valves again and export with fourth stage Tube Sheet of Heat Exchanger group (28) and be connected 17 valves again; First order Tube Sheet of Heat Exchanger group (25), second level Tube Sheet of Heat Exchanger group (26), third level Tube Sheet of Heat Exchanger group (27) and fourth stage Tube Sheet of Heat Exchanger group (28), said 14 valves, 15 valves, 16 valves and 17 valves converge stagewise heat exchange subsystem (2) outlet of back formation back-end ductwork together.
2. according to the said boiler tail flue gas bootstrap system that adapts to power plant's variable parameter operation of claim 1; It is characterized in that, in the boiler tail flue gas bootstrap system of said adaptation power plant variable parameter operation TT temperature-measuring element and FT flow transmitter are installed.
3. according to the boiler tail flue gas bootstrap system of the said adaptation of claim 1 power plant variable parameter operation, it is characterized in that the structure of said Tube Sheet of Heat Exchanger group is that adjacent parent tube (22) constitutes the membrane wall heat exchanger with band steel fin (23) weldering system; The pad place of parent tube (22) and band steel fin (23) adopts the heap big fillet of melting welding transition (24), and smooth smooth treatment is carried out on heap melting welding surface.Tube Sheet of Heat Exchanger group and the parallel placement of flue gas incoming flow, adopt between the Guan Zuyu pipe group along the form of row or stagger arrangement all can, pass the heat exchange effect to strengthen, wedge shape cowling panel (25) is set, to reduce wearing and tearing and conveniently to blow ash simultaneously between the pipe group.
4. according to the said boiler tail flue gas bootstrap system that adapts to power plant's variable parameter operation of claim 1; It is characterized in that, the form that adopts stagger arrangement between the said Guan Zuyu pipe group be in the pipe group between each pipe row along between each pipe row of flue gas direction stagger arrangement 1/2 vertical intercept, adjacent tubes group along flue gas vertical direction stagger arrangement 1/2 horizontal intercept.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216829.6A CN102767820B (en) | 2012-06-27 | 2012-06-27 | Smoke waste heat utilizing system at tail of power station boiler applicable to operation in variable working condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216829.6A CN102767820B (en) | 2012-06-27 | 2012-06-27 | Smoke waste heat utilizing system at tail of power station boiler applicable to operation in variable working condition |
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| Publication Number | Publication Date |
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| CN102767820A true CN102767820A (en) | 2012-11-07 |
| CN102767820B CN102767820B (en) | 2015-07-15 |
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|---|---|---|---|
| CN201210216829.6A Expired - Fee Related CN102767820B (en) | 2012-06-27 | 2012-06-27 | Smoke waste heat utilizing system at tail of power station boiler applicable to operation in variable working condition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062754A (en) * | 2012-12-28 | 2013-04-24 | 华北电力大学 | Power station machine furnace integrated cold end comprehensive optimization system |
| CN106765259A (en) * | 2016-11-23 | 2017-05-31 | 广东东燃热能科技有限公司 | A kind of method of boiler residual heat recovery energy-saving |
| CN110500572A (en) * | 2019-09-02 | 2019-11-26 | 南通万达锅炉有限公司 | A kind of modular condensate heater |
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|---|---|---|---|---|
| GB841040A (en) * | 1957-08-06 | 1960-07-13 | Babcock & Wilcox Ltd | Improvements in or relating to steam generators provided with air heater means |
| CN86105222A (en) * | 1986-08-14 | 1987-06-24 | 西安交通大学 | Utilize the low-pressure energy-saving hybrid system of smoke discharging residual heat |
| US5293841A (en) * | 1992-03-06 | 1994-03-15 | Gea Luftkuhler Gmbh | Arrangement for utilizing the heat contained in the exhaust gas of a coal-fired boiler |
| CN202074880U (en) * | 2011-03-15 | 2011-12-14 | 福建成信绿集成有限公司 | Automatic control system used in acid resistant dew point corrosion of a boiler smoke evacuation heat recovery heat exchanger |
| CN202915335U (en) * | 2012-06-27 | 2013-05-01 | 华北电力大学 | Power station boiler rear smoke waste-heat utilization device applicable to variable working condition operation |
-
2012
- 2012-06-27 CN CN201210216829.6A patent/CN102767820B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841040A (en) * | 1957-08-06 | 1960-07-13 | Babcock & Wilcox Ltd | Improvements in or relating to steam generators provided with air heater means |
| CN86105222A (en) * | 1986-08-14 | 1987-06-24 | 西安交通大学 | Utilize the low-pressure energy-saving hybrid system of smoke discharging residual heat |
| US5293841A (en) * | 1992-03-06 | 1994-03-15 | Gea Luftkuhler Gmbh | Arrangement for utilizing the heat contained in the exhaust gas of a coal-fired boiler |
| CN202074880U (en) * | 2011-03-15 | 2011-12-14 | 福建成信绿集成有限公司 | Automatic control system used in acid resistant dew point corrosion of a boiler smoke evacuation heat recovery heat exchanger |
| CN202915335U (en) * | 2012-06-27 | 2013-05-01 | 华北电力大学 | Power station boiler rear smoke waste-heat utilization device applicable to variable working condition operation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062754A (en) * | 2012-12-28 | 2013-04-24 | 华北电力大学 | Power station machine furnace integrated cold end comprehensive optimization system |
| CN103062754B (en) * | 2012-12-28 | 2014-08-20 | 华北电力大学 | Power station machine furnace integrated cold end comprehensive optimization system |
| CN106765259A (en) * | 2016-11-23 | 2017-05-31 | 广东东燃热能科技有限公司 | A kind of method of boiler residual heat recovery energy-saving |
| CN110500572A (en) * | 2019-09-02 | 2019-11-26 | 南通万达锅炉有限公司 | A kind of modular condensate heater |
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| CN102767820B (en) | 2015-07-15 |
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