CN102927550A - System for recovering smoke and heat energy of three-section gas-fired boiler - Google Patents
System for recovering smoke and heat energy of three-section gas-fired boiler Download PDFInfo
- Publication number
- CN102927550A CN102927550A CN2012104429676A CN201210442967A CN102927550A CN 102927550 A CN102927550 A CN 102927550A CN 2012104429676 A CN2012104429676 A CN 2012104429676A CN 201210442967 A CN201210442967 A CN 201210442967A CN 102927550 A CN102927550 A CN 102927550A
- Authority
- CN
- China
- Prior art keywords
- boiler
- heat
- heat exchanger
- inlet air
- smoke
- 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.)
- Pending
Links
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
Abstract
The invention relates to a system for recovering smoke and heat energy of a three-section gas-fired boiler. The system comprises a gas-fired boiler body (7), a boiler air inlet system (5) and a boiler smoke exhaust system (6), a first boiler air inlet heat exchanger (1), a second boiler air inlet heat exchanger (3) and a smoke heat recovery heat exchanger (4) are added into the boiler smoke exhaust system (6), the first boiler air inlet heat exchanger (1) and the second boiler air inlet heat exchanger (3) use heat pipe exchangers, the smoke heat recovery heat exchanger (4) is arranged between the first boiler air inlet heat exchanger (1) and the second boiler air inlet heat exchanger (3), and a pipeline system (8) of the smoke heat recovery heat exchanger (4) is connected with circulation water of a heat pump (2). The system recovers a huge amount of latent heat and sensible heat of exhausted smoke of the gas-fired boiler, part of the latent heat and the sensible heat is used for preheating inlet air of the boiler so as to reduce consumption of natural gases, the other part of the latent heat and the sensible heat is used as a heat source of the heat pump and as other heat sources to be used when grades of the latent heat and the sensible heat are improved, and condensate water is produced in the process of smoke cooling.
Description
Technical field
The present invention relates to a kind of syllogic gas fired-boiler smoke heat energy recovery system.Be used for the energy-saving and emission-reduction transformation of boiler or similar industry.
Background technology
Follow wideling popularize of national energy-saving environmental protection policy rules, gas fired-boiler has the trend that replaces gradually coal-burning boiler, oil burning boiler in a lot of industries.Main cause is that coal and oil produce a large amount of dust when burning, a large amount of sour gas formation of burning generation acid rain weldings.Compare with oil with coal, natural gas is a kind of clean energy resource, and sufficient combustion produces dust hardly; Natural gas has the acid gas removal link in process of production, so the content of acid gas in the natural gas is extremely low, acid gas-containing hardly in the boiler exhaust gas does not destroy environment.
Because the smoke evacuation of gas fired-boiler is very clean, so the waste heat that reclaims the gas fired-boiler smoke evacuation is convenient.But, contain the water vapour about 18% in the gas fired-boiler smoke evacuation, discharge a large amount of latent heat in the worst cold case water recovery, this latent heat amount is huge, to such an extent as to rely on merely the preboiler air intake can't reclaim it fully, this just needs to adopt new scheme and technology fully to reclaim this waste heat.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of syllogic gas fired-boiler smoke heat energy recovery system that can reclaim the latent heat that water recovery discharges in the gas fired-boiler smoke evacuation fully is provided.
The object of the present invention is achieved like this: a kind of syllogic gas fired-boiler smoke heat energy recovery system, comprise: gas fired-boiler, inlet air of boiler system and boiler exhaust gas system, it is characterized in that in described boiler exhaust gas system and inlet air of boiler system, having additional the first inlet air of boiler heat exchanger, the second inlet air of boiler heat exchanger and flue gas heat reclaim heat exchanger, the first inlet air of boiler heat exchanger and the second inlet air of boiler heat exchanger adopt heat exchange of heat pipe, wherein the hot side of the first inlet air of boiler heat exchanger and the second inlet air of boiler heat exchanger is arranged in the boiler exhaust gas system, cold side is arranged in the inlet air of boiler system, the first inlet air of boiler heat exchanger is arranged near the gas fired-boiler place, the second inlet air of boiler heat exchanger is arranged on away from the gas fired-boiler place, flue gas heat reclaims heat exchanger and is arranged between the first inlet air of boiler heat exchanger and the second inlet air of boiler heat exchanger, and the pipe-line system that flue gas heat reclaims heat exchanger is connected with the recirculated water of heat pump.
The invention has the beneficial effects as follows:
Waste heat in the recovery boiler smoke evacuation of the present invention is used for the preboiler air intake, improves the inlet air of boiler enthalpy, reduces boiler natural gas consumption; It is that heat in the recovered flue gas is used for the recirculated water of preheating heat pump that flue gas heat reclaims its function of heat exchanger, and the heat energy of recovery finally is transferred to heat pump, and flue gas heat reclaims heat exchanger solidifying water generates, has played simultaneously the dual purpose of recycle-water resource and the energy.
Description of drawings
Fig. 1 is syllogic gas fired-boiler smoke heat energy recovery system schematic flow sheet of the present invention.
Reference numeral among the figure:
The first inlet air of boiler heat exchanger 1, heat pump 2, the second inlet air of boiler heat exchanger 3, flue gas heat reclaim heat exchanger 4, inlet air of boiler system 5, boiler exhaust gas system 6, gas fired-boiler 7, pipe-line system 8.
The specific embodiment
Referring to Fig. 1, Fig. 1 is syllogic gas fired-boiler smoke heat energy recovery system schematic flow sheet of the present invention.As seen from Figure 1, syllogic gas fired-boiler smoke heat energy recovery system of the present invention, comprise: gas fired-boiler 7, inlet air of boiler system 5 and boiler exhaust gas system 6, have additional the first inlet air of boiler heat exchanger 1 in described boiler exhaust gas system 6 and the inlet air of boiler system 5, the second inlet air of boiler heat exchanger 3 and flue gas heat reclaim heat exchanger 4, the first inlet air of boiler heat exchanger 1 and the second inlet air of boiler heat exchanger 3 adopt heat exchange of heat pipe, wherein the hot side of the first inlet air of boiler heat exchanger 1 and the second inlet air of boiler heat exchanger 3 is arranged in the boiler exhaust gas system 5, cold side is arranged in the inlet air of boiler system 4, the first inlet air of boiler heat exchanger 1 is arranged near gas fired-boiler 7 places, the second inlet air of boiler heat exchanger 3 is arranged on away from gas fired-boiler 7 places, flue gas heat reclaims heat exchanger 4 and is arranged between the first inlet air of boiler heat exchanger 1 and the second inlet air of boiler heat exchanger 3, the pipe-line system 8 that flue gas heat reclaims heat exchanger 4 and heat pump 2 recirculated water be connected.
The flue gas of gas fired-boiler 7 approximately enters boiler exhaust gas system 6 about 80 ℃, at first through the first inlet air of boiler heat exchanger 1, advanced flue gas heat again and reclaim heat exchanger 4, finally by crossing the second inlet air of boiler heat exchanger 3, after three grades of coolings, finish flue gas energy recovery, discharge at last system; After new wind enters inlet air of boiler system 5, at first through the second inlet air of boiler heat exchanger 3, again through entering gas fired-boiler after the 1 secondary preheating of the first inlet air of boiler heat exchanger; After being transferred to heat pump 2 and promoting grade through pipe-line system 8, the heat that flue gas heat recovery heat exchanger 4 reclaims requires for other purposes.Flue gas reclaims heat exchanger 4 through the first inlet air of boiler heat exchanger 1, flue gas heat and 3 three grades of temperature-fall periods of the second inlet air of boiler heat exchanger produce solidifying water, and these solidifying water are recyclable.
Claims (1)
1. syllogic gas fired-boiler smoke heat energy recovery system, comprise: gas fired-boiler (7), inlet air of boiler system (5) and boiler exhaust gas system (6), it is characterized in that in described boiler exhaust gas system (6) and inlet air of boiler system (5), having additional the first inlet air of boiler heat exchanger (1), the second inlet air of boiler heat exchanger (3) and flue gas heat reclaim heat exchanger (4), the first inlet air of boiler heat exchanger (1) and the second inlet air of boiler heat exchanger (3) adopt heat exchange of heat pipe, wherein the hot side of the first inlet air of boiler heat exchanger (1) and the second inlet air of boiler heat exchanger (3) is arranged in the boiler exhaust gas system (5), cold side is arranged in the inlet air of boiler system (4), the first inlet air of boiler heat exchanger (1) is arranged near gas fired-boiler (7) and locates, the second inlet air of boiler heat exchanger (3) is arranged on away from gas fired-boiler (7) to be located, flue gas heat reclaims heat exchanger (4) and is arranged between the first inlet air of boiler heat exchanger (1) and the second inlet air of boiler heat exchanger (3), and the pipe-line system (8) that flue gas heat reclaims heat exchanger (4) is connected with the recirculated water of heat pump (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104429676A CN102927550A (en) | 2012-11-08 | 2012-11-08 | System for recovering smoke and heat energy of three-section gas-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104429676A CN102927550A (en) | 2012-11-08 | 2012-11-08 | System for recovering smoke and heat energy of three-section gas-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927550A true CN102927550A (en) | 2013-02-13 |
Family
ID=47642418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104429676A Pending CN102927550A (en) | 2012-11-08 | 2012-11-08 | System for recovering smoke and heat energy of three-section gas-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927550A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807865A (en) * | 2014-02-27 | 2014-05-21 | 江苏双良新能源装备有限公司 | Two-section type gas boiler smoke heat energy recovery system with water spraying chamber |
| CN105020734A (en) * | 2014-04-18 | 2015-11-04 | 中石化洛阳工程有限公司 | Method and device for recycling smoke waste heat |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769594A (en) * | 2008-12-29 | 2010-07-07 | 苏桐梅 | Flue gas total-heat recovery device of gas boiler |
| CN201837058U (en) * | 2010-05-07 | 2011-05-18 | 北京五航星太阳能科技发展有限公司 | Flue gas heat pump water heater |
| CN202229608U (en) * | 2011-08-16 | 2012-05-23 | 山西煤炭进出口集团科技发展有限公司 | Exhaust fume waste heat recovery system of coal gangue brick factory |
| CN202485205U (en) * | 2012-02-22 | 2012-10-10 | 无锡市久川机械设备有限公司 | Indirect type straw air heating furnace |
| CN202915329U (en) * | 2012-11-08 | 2013-05-01 | 江苏双良新能源装备有限公司 | Three-section type gas boiler smoke heat recovery system |
-
2012
- 2012-11-08 CN CN2012104429676A patent/CN102927550A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769594A (en) * | 2008-12-29 | 2010-07-07 | 苏桐梅 | Flue gas total-heat recovery device of gas boiler |
| CN201837058U (en) * | 2010-05-07 | 2011-05-18 | 北京五航星太阳能科技发展有限公司 | Flue gas heat pump water heater |
| CN202229608U (en) * | 2011-08-16 | 2012-05-23 | 山西煤炭进出口集团科技发展有限公司 | Exhaust fume waste heat recovery system of coal gangue brick factory |
| CN202485205U (en) * | 2012-02-22 | 2012-10-10 | 无锡市久川机械设备有限公司 | Indirect type straw air heating furnace |
| CN202915329U (en) * | 2012-11-08 | 2013-05-01 | 江苏双良新能源装备有限公司 | Three-section type gas boiler smoke heat recovery system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807865A (en) * | 2014-02-27 | 2014-05-21 | 江苏双良新能源装备有限公司 | Two-section type gas boiler smoke heat energy recovery system with water spraying chamber |
| CN105020734A (en) * | 2014-04-18 | 2015-11-04 | 中石化洛阳工程有限公司 | Method and device for recycling smoke waste heat |
| CN105020734B (en) * | 2014-04-18 | 2017-07-14 | 中石化洛阳工程有限公司 | A kind of method and apparatus of Mist heat recovering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102305413B (en) | Exhaust gas waste heat recovery and emission reduction comprehensive application system for coal-fired boiler in thermal power plant | |
| CN202203971U (en) | Discharged smoke afterheat recycling and emission reduction comprehensive application system for coal-fired boiler in thermal power plant | |
| CN203501144U (en) | Waste heat recovery system for gas-fired boiler | |
| CN103438427A (en) | Gas-fired boiler afterheat recovering system and recovering method | |
| CN102980171A (en) | Economizer capable of recycling waste heat of flue in depth and concealing, desulfurizing and aspirating flue of coal-fired boiler | |
| CN201795471U (en) | Flue gas afterheat utilization system | |
| CN203147789U (en) | Flue gas processing system used in thermal power plant | |
| CN204114893U (en) | Residual heat from boiler fume recycle device | |
| CN104165351A (en) | Emission reduction and energy conservation system without GGH | |
| CN202002390U (en) | Boiler system with tail gas heat energy recycling function | |
| CN204665317U (en) | The device of pollutant in a kind of degree of depth waste heat recovery cooperation-removal flue gas | |
| CN202915329U (en) | Three-section type gas boiler smoke heat recovery system | |
| CN212511227U (en) | System for eliminating white smoke plume of bituminous coal smoke by utilizing absorption heat pump technology | |
| CN204141842U (en) | A kind of energy-saving, environmental protection boiler | |
| CN202947152U (en) | Gas boiler flue gas heat energy recovery system with a preheater | |
| CN204574072U (en) | Boiler exhaust gas dust arrester | |
| CN202993536U (en) | Coal-fired hot blast furnace set with waste heat boiler | |
| CN102927550A (en) | System for recovering smoke and heat energy of three-section gas-fired boiler | |
| CN205412650U (en) | Purifier is retrieved to latent heat | |
| CN202915394U (en) | Two-section type gas boiler flue gas heat recovery system | |
| CN206989174U (en) | A kind of boiler smoke condensate water recovery device | |
| CN202630747U (en) | Waste heat recovery system capable of improving efficiency of electric dust collector | |
| CN103807865B (en) | With the gas fired-boiler smoke heat energy recovery system of spray chamber two-part | |
| CN102913941A (en) | Two-stage fuel gas boiler flue gas heat energy recovery system | |
| CN205807384U (en) | A kind of MGGH condensation water heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |