CN109737447A - A kind of boiler heat-energy recovery system - Google Patents
A kind of boiler heat-energy recovery system Download PDFInfo
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- CN109737447A CN109737447A CN201910054393.7A CN201910054393A CN109737447A CN 109737447 A CN109737447 A CN 109737447A CN 201910054393 A CN201910054393 A CN 201910054393A CN 109737447 A CN109737447 A CN 109737447A
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- Prior art keywords
- boiler
- heat
- pump
- energy recovery
- recovery system
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The present invention is suitable for equipment technical field, provides a kind of boiler heat-energy recovery system, including inlet air of boiler system, air preheater, boiler, aspiration pump, Steam Power Equipment, heat exchange pipeline, water supply pump, phase-change heat-exchanger, absorption heat pump, admission line, exhaust pipe and water supplying pipe, so increasing fume afterheat uptake, fume afterheat utilization rate is improved.
Description
Technical field
The present invention relates to energy-saving equipment technical fields, more specifically to a kind of boiler heat-energy recovery system.
Background technique
Boiler includes pot and furnace two large divisions, and the hot water or steam generated in boiler can be directly raw for industrial production and the people
It is living that required thermal energy is provided, mechanical energy can also be converted to by Steam Power Equipment, or convert mechanical energy into again by generator
Electric energy.
For exhaust gas temperature generally at 250 DEG C or more, institute's smoke discharging belongs to low-temperature zone flue gas, contains considerable sensible heat
And latent heat.Existing engineering technology directly arranges this partial fume heat into atmosphere, so that this part energy wastes
Fall.Currently, the emptying of low-temperature zone flue gas is a kind of universal waste waste heat phenomenon.The annual flue gas heat therefore slatterned accounts for combustion gas
The specific gravity of boiler smoke total amount of heat is very big, causes fume afterheat utilization efficiency low, and flue gas heat recycling is not thorough, heat recovery amount
It is few.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of boiler heat-energy time
Receipts system.
The technical solution adopted by the present invention to solve the technical problems is:
Construct a kind of boiler heat-energy recovery system, including inlet air of boiler system, air preheater, boiler, aspiration pump, steam
Power device, heat exchange pipeline, water supply pump, phase-change heat-exchanger, absorption heat pump, admission line, exhaust pipe and water supplying pipe；
Boiler air inlet, boiler feed water mouth and boiler exhaust mouth are provided on boiler；
Inlet air of boiler system, air preheater and boiler are sequentially connected by admission line, and boiler exhaust mouth passes through exhaust
Pipeline is connected with Steam Power Equipment, and aspiration pump is set on the exhaust pipe between boiler and Steam Power Equipment and is located at and leans on
The side of nearly Steam Power Equipment；
Air preheater, phase-change heat-exchanger and absorption heat pump are all set in the downstream of Steam Power Equipment and pass through exhaust
Pipeline connection；
Water supply pump, heat exchange pipeline, phase-change heat-exchanger, absorption heat pump and boiler feed water mouth are sequentially connected by water supplying pipe.
As further scheme of the invention: the admission line of air preheater and boiler room is covered with thermal insulation material.
As further scheme of the invention: exhaust pipe outer layer exposed section is covered with thermal insulation material.
As further scheme of the invention: exhaust pipe outer layer exposed section is covered with thermal insulation material.
As further scheme of the invention: absorption heat pump is flue gas fuel supplementing type lithium bromide absorption type heat pump, absorption
Air inlet is provided on heat pump, absorption heat pump is internally provided with generator and evaporator.
As further scheme of the invention: evaporator is internally provided with water as refrigerant.
The beneficial effects of the present invention are: due to using air preheater, heat exchange pipeline, phase-change heat-exchanger and absorption
Heat pump, the flue gas generated to boiler has carried out multistage recycling, so increasing fume afterheat uptake, improves fume afterheat benefit
With rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below in conjunction with attached drawing and reality
Applying example, the invention will be further described, and the accompanying drawings in the following description is only section Example of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other accompanying drawings:
Fig. 1 is a kind of overall procedure schematic diagram of boiler heat-energy recovery system；
Fig. 2 is a kind of gas pipeline flow diagram of boiler heat-energy recovery system；
Fig. 3 is a kind of water supply line flow diagram of boiler heat-energy recovery system；
Fig. 4 is a kind of heat exchange pipeline structure chart of boiler heat-energy recovery system.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Technical solution in example carries out clear, complete description, it is clear that and described embodiment is section Example of the invention, and
It is not all of embodiment.Based on the embodiment of the present invention, those of ordinary skill in the art are not before making the creative labor
Every other embodiment obtained is put, protection scope of the present invention is belonged to.
As Figure 1-Figure 4, a kind of boiler heat-energy recovery system, including inlet air of boiler system 1, air preheater 2, boiler
3, aspiration pump 4, Steam Power Equipment 5, heat exchange pipeline 6, water supply pump 7, phase-change heat-exchanger 8, absorption heat pump 9, admission line 10,
Exhaust pipe 11 and water supplying pipe 12；
Boiler air inlet 301, boiler feed water mouth 302 and boiler exhaust mouth 303 are provided on boiler 3；
Inlet air of boiler system 1, air preheater 2 and boiler 3 are sequentially connected by admission line 10, boiler exhaust mouth 303
It is connected by exhaust pipe 11 with Steam Power Equipment 5, aspiration pump 4 is set to the exhaust between boiler 3 and Steam Power Equipment 5
On pipeline 11 and it is located at close to the side of Steam Power Equipment 5；
Air preheater 2, phase-change heat-exchanger 8 and absorption heat pump 9 are all set in the downstream of Steam Power Equipment 5 and pass through
Exhaust pipe 11 is connected to；
Water supply pump 7, heat exchange pipeline 6, phase-change heat-exchanger 8, absorption heat pump 9 and boiler feed water mouth 302 pass through water supplying pipe 12
It is sequentially connected.
Admission line 11 between air preheater 2 and boiler 3 is covered with thermal insulation material.
11 outer layer exposed section of exhaust pipe is covered with thermal insulation material.
11 outer layer exposed section of exhaust pipe is covered with thermal insulation material.
Absorption heat pump 8 is flue gas fuel supplementing type lithium bromide absorption type heat pump, is provided with air inlet 801 on absorption heat pump 8,
Absorption heat pump 8 is internally provided with generator and evaporator.
Evaporator is internally provided with water as refrigerant.
Working principle of the present invention: admission line 10 is introduced by inlet air of boiler system 1 after natural gas and air mixing, through air
Preheater 2 utilizes the steaming that will be generated in boiler 3 through full combustion after arranged steam preheating into 3 full combustion of boiler, aspiration pump 4
Vapour detaches boiler 3, and steam is made to accelerate into Steam Power Equipment 5, the thermal losses in exhaust pipe 11 is reduced, from steam power
It is that the water in water supplying pipe 12 realizes level-one preheating that the steam that device 5 is discharged, which first passes around heat exchange pipeline 6 and is absorbed a part of heat,
Thereafter be divided into three parts: first part enters the air and natural gas of the pre- hot mixing of air preheater 2, the second part into
Entering phase transformation heat exchanger 8 is that the water in water supplying pipe 12 realizes second level preheating, and it is water supplying pipe 12 that third part, which enters absorption heat pump 9,
Interior water realizes three-level preheating.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (6)
1. a kind of boiler heat-energy recovery system, which is characterized in that including inlet air of boiler system (1), air preheater (2), boiler
(3), aspiration pump (4), Steam Power Equipment (5), heat exchange pipeline (6), water supply pump (7), phase-change heat-exchanger (8), absorption heat pump
(9), admission line (10), exhaust pipe (11) and water supplying pipe (12)；
It is provided with boiler air inlet (301) on the boiler (3), boiler feed water mouth (302) and boiler exhaust mouth (303)；
The inlet air of boiler system (1), air preheater (2) and boiler (3) are sequentially connected by the admission line (10), institute
It states boiler exhaust mouth (303) to be connected by the exhaust pipe (11) with the Steam Power Equipment (5), the aspiration pump (4)
It is set on the exhaust pipe (11) between the boiler (3) and the Steam Power Equipment (5) and is located at close to the steam
The side of power device (5)；
The air preheater (2), phase-change heat-exchanger (8) and absorption heat pump (9) are all set in the Steam Power Equipment (5)
Downstream and by the exhaust pipe (11) be connected to；
The water supply pump (7), heat exchange pipeline (6), phase-change heat-exchanger (8), absorption heat pump (9) and boiler feed water mouth (302) are logical
The water supplying pipe (12) is crossed to be sequentially connected.
2. institute as described in claim 1 states boiler heat-energy recovery system, which is characterized in that the air preheater (2) and
The admission line (11) between the boiler (3) is covered with thermal insulation material.
3. as described in claim 1 states boiler heat-energy recovery system, which is characterized in that exhaust pipe (11) outer layer
Exposed section is covered with thermal insulation material.
4. as described in claim 1 states boiler heat-energy recovery system, which is characterized in that exhaust pipe (11) outer layer
Exposed section is covered with thermal insulation material.
5. as described in claim 1 states boiler heat-energy recovery system, which is characterized in that the absorption heat pump (8) is
Flue gas fuel supplementing type lithium bromide absorption type heat pump is provided with air inlet (801), the absorption type heat on the absorption heat pump (8)
Pump (8) is internally provided with generator and evaporator.
6. as claimed in claim 5 states boiler heat-energy recovery system, which is characterized in that the evaporator is internally provided with
Water as refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054393.7A CN109737447A (en) | 2019-01-21 | 2019-01-21 | A kind of boiler heat-energy recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054393.7A CN109737447A (en) | 2019-01-21 | 2019-01-21 | A kind of boiler heat-energy recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN109737447A true CN109737447A (en) | 2019-05-10 |
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ID=66365468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910054393.7A Pending CN109737447A (en) | 2019-01-21 | 2019-01-21 | A kind of boiler heat-energy recovery system |
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| CN (1) | CN109737447A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202470092U (en) * | 2012-01-16 | 2012-10-03 | 广东理文造纸有限公司 | Composite phase-change heat exchanger |
| CN103438427A (en) * | 2013-08-09 | 2013-12-11 | 天津诺能达能源科技有限公司 | Gas-fired boiler afterheat recovering system and recovering method |
| CN104359103A (en) * | 2014-12-02 | 2015-02-18 | 代元军 | Flue gas residual heat recovery system with absorption type heat pump circulation |
| CN105277027A (en) * | 2015-11-05 | 2016-01-27 | 吉林省电力科学研究院有限公司 | Phase-change heat exchanger and heat exchange method thereof |
| CN106016835A (en) * | 2016-07-27 | 2016-10-12 | 陈丽萍 | System for recycling fuel gas and flue gas waste heat in multistage mode |
| CN108119907A (en) * | 2017-12-22 | 2018-06-05 | 芜湖德司节能科技有限公司 | A kind of gas fired-boiler afterheat energy-saving recovery method |
| CN207621985U (en) * | 2017-10-26 | 2018-07-17 | 江苏理文造纸有限公司 | A kind of boiler smoke heat reclaiming system |
-
2019
- 2019-01-21 CN CN201910054393.7A patent/CN109737447A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202470092U (en) * | 2012-01-16 | 2012-10-03 | 广东理文造纸有限公司 | Composite phase-change heat exchanger |
| CN103438427A (en) * | 2013-08-09 | 2013-12-11 | 天津诺能达能源科技有限公司 | Gas-fired boiler afterheat recovering system and recovering method |
| CN104359103A (en) * | 2014-12-02 | 2015-02-18 | 代元军 | Flue gas residual heat recovery system with absorption type heat pump circulation |
| CN105277027A (en) * | 2015-11-05 | 2016-01-27 | 吉林省电力科学研究院有限公司 | Phase-change heat exchanger and heat exchange method thereof |
| CN106016835A (en) * | 2016-07-27 | 2016-10-12 | 陈丽萍 | System for recycling fuel gas and flue gas waste heat in multistage mode |
| CN207621985U (en) * | 2017-10-26 | 2018-07-17 | 江苏理文造纸有限公司 | A kind of boiler smoke heat reclaiming system |
| CN108119907A (en) * | 2017-12-22 | 2018-06-05 | 芜湖德司节能科技有限公司 | A kind of gas fired-boiler afterheat energy-saving recovery method |
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Application publication date: 20190510 |
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