CN205535893U - Wet residual heat from flue gas heating system - Google Patents
Wet residual heat from flue gas heating system Download PDFInfo
- Publication number
- CN205535893U CN205535893U CN201620058131.XU CN201620058131U CN205535893U CN 205535893 U CN205535893 U CN 205535893U CN 201620058131 U CN201620058131 U CN 201620058131U CN 205535893 U CN205535893 U CN 205535893U
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- China
- Prior art keywords
- water
- flue gas
- solution
- wet flue
- heat exchanger
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a wet residual heat from flue gas heating system, including the flue gas recovery system that wets, remaining the hot water utilization system, wet flue gas recovery system includes the absorption tower, and the absorption tower bottom remains the hot water utilization system through solution storage pool intercommunication, and upper portion is equipped with and sprays the layer in the absorption tower, becomes the weak solution after the interior organic solution of solution storage pool sprays layer absorbed water vapour through the self -circulating pump entering, and rare solution flow goes into the solution storage pool. Surplus hot water utilization system includes high temperature steam water heat exchanger, flash vessel that the partial weak solution in the solution storage pool got into through the weak solution pump. Flash vessel exhaust flash steam once nets water circulation pipeline through steam water heat exchanger heat transfer, heat transfer water entering. Water circulation pipeline is once netted through water water heat exchanger, its concentrated solution heat transfer water entering to the flash vessel. The beneficial effects of the utility model are that: organic solution comes the heat transfer through concentration and temperature variation, and organic solution is not direct to be mixed with heat supply water. The latent heat absorbate of steam utilizes in the wet flue gas, has practiced thrift the energy.
Description
Technical field
This utility model relates to industrial exhaust heat and utilizes field, heating field and energy-conserving and environment-protective field, particularly
Relate to a kind of wet flue gas waste heat recovery heating system.
Background technology
After coal-fired boiler combustion and industry roasting, a large amount of flue gas can be produced, typically by desulphurization and denitration and
After dust removal process, directly by smoke stack emission, exhaust temperature is at 130～150 DEG C.The billowing Bai Yanzhong of discharge
Containing substantial amounts of water vapour, the water vapour in wet flue gas there is the biggest latent heat, be seldom utilized,
Directly discharge causes a large amount of wastes of the energy.
And the water temperature needed for heating system is typically at 30～90 DEG C, a net water 50～90 DEG C, two net water 30～50
DEG C, it is possible to use the vapour latent heat in wet flue gas and obvious heat of smoke, to heat supplying hot water, for heat supply system
System uses.
Summary of the invention
Technical problem to be solved in the utility model is to provide one can absorb water vapour in wet flue gas
The recovery heating system of latent heat.
This utility model be the technical scheme is that a kind of wet flue gas waste heat recovery heating system, and this is
System includes that wet flue gas recovery system, waste heat water utilization system, described wet flue gas recovery system include absorption tower,
Described waste heat water utilization system, described absorption tower internal upper part is connected through solution reservoirs bottom described absorption tower
Being provided with spraying layer, the organic solution in described solution reservoirs enters spraying layer by self-circulating pump and absorbs water
Becoming weak solution after steam, weak solution flows into described solution reservoirs.Absorption tower spray organic solution, flue gas is
Direct current, dense organic solution is to transfer weak solution to by absorption flue gas vapors.
Described waste heat water utilization system includes that the part weak solution in described solution reservoirs is through weak solution pump
The high temperature vapor-water heat exchanger of entrance, flash vessel, described high temperature vapor-water heat exchanger connects described flash vessel.Molten
Part weak solution in liquid storage pool transfers concentrated solution to through flash vessel.
The indirect steam that described flash vessel is discharged is by low temperature vapor-water heat exchanger heat exchange, and heat-exchanging water enters and supplies
One secondary net water circulation pipe of hot water supply system.Organic solution does not directly mix with supplying hot water.
Being connected between described flash vessel with described water water-to-water heat exchanger and have concentrated solution pump, concentrated solution is changed through water water
Hot device and low temperature vapor-water heat exchanger heat exchange, heat-exchanging water enters a secondary net water-circulating pipe of heat supply water supply system
Road.Organic solution does not directly mix with supplying hot water, supplies a secondary net water through twice heat exchange.
Spraying layer in described absorption tower is one or more layers.
Spraying layer in described absorption tower is arranged over demister.
Described demister is one or more layers.
Described absorption tower, spraying layer, demister are equipped with fresh water (FW) rinse-system.
Described self-circulating pump, weak solution pump, concentrated solution pump, water water-to-water heat exchanger, high temperature vapor-water heat exchanger are equal
It is provided with fresh water (FW) rinse-system.
Described solution reservoirs is provided with agitator and/or precipitation process system.
The beneficial effects of the utility model are: organic solution is to carry out heat exchange by concentration and variations in temperature,
Organic solution does not directly mix with supplying hot water.In wet flue gas, the latent heat of water vapour is absorbed and used, and saves
The energy.
Accompanying drawing explanation
Fig. 1 is wet flue gas waste heat recovery heating system schematic diagram of the present utility model.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of wet flue gas waste heat recovery heating system, this system includes that wet flue gas reclaims
System and waste heat water utilization system, described wet flue gas recovery system includes absorption tower 1, described absorption tower 1
Bottom connects described waste heat water utilization system by solution reservoirs 4, and described absorption tower 1 internal upper part is provided with
Spraying layer 2, is arranged above with demister 3 at described spraying layer 2, organic in described solution reservoirs 4
Solution is entered after described spraying layer 2 absorbs steam by self-circulating pump 5 and becomes weak solution to return described solution
Storage pool 4；Described waste heat water utilization system includes that the part weak solution in described solution reservoirs 4 is through dilute
High temperature vapor-water heat exchanger 10, flash vessel 7 and the low temperature vapor-water heat exchanger 11 that solution pump 6 enters, described
High temperature vapor-water heat exchanger 10 connects described flash vessel 7, and the indirect steam that described flash vessel 7 is discharged passes through
Low temperature vapor-water heat exchanger 11 heat exchange, heat-exchanging water enters a secondary net water circulation pipe of heat supply water supply system；
Being connected between described flash vessel 7 with described water water-to-water heat exchanger 9 and have concentrated solution pump 8, a secondary net water is described
After concentrated solution heating in water water-to-water heat exchanger 9, enter the Secondary-steam heating discharged by described flash vessel 7
Described low temperature vapor-water heat exchanger 11 continue heating, the secondary net water subsequently into heat supply water supply system follows
Endless tube road.
Work process is as follows:
Wet flue gas is from bottom to top by absorption tower 1, and organic solution is absorbed wet cigarette from top to bottom by spraying layer 2
Water vapour in gas, and reduce flue-gas temperature, absorb fume afterheat；Flue gas is through top, absorption tower 1
Demister 3 after, be discharged in air via chimney；
Organic solution, owing to absorbing water vapour, becomes weak solution, falls into the solution storage bottom absorption tower
In pond 4, organic solution absorbs the heat of flue gas and water vapour, and temperature raises；A part of weak solution can
Reached spraying layer 2 by self-circulating pump 5, carry out solution self-loopa；A part of weak solution is by weak solution pump 6
Pressurization, through vapor-water heat exchanger 10, is heated by high-temperature steam；The weak solution of High Temperature High Pressure, via sudden strain of a muscle
Steaming device 7, flashes off indirect steam, and organic solution becomes concentrated solution, then is sent into by concentrated solution circulating pump 8
In water water-to-water heat exchanger 9；The dense organic solution that temperature is higher is returned the heating of low temperature in water water-to-water heat exchanger 9
Water is heated to uniform temperature；
Flash vessel 7 flashes off indirect steam, continues to add through 11 heat supply backwater of low temperature vapor-water heat exchanger
Heat, supplying hot water enters heat supply water supply system；Indirect steam is condensed, and enters plant area's sewage (or middle water)
System；
High-temperature steam, via high temperature vapor-water heat exchanger 10 heat exchange, is condensed into condensed water, returns to plant area's condensed water
System.
Spraying layer 2 in this utility model absorption tower 1 can be one or more layers, and demister 3 can be
One or more layers.
Described absorption tower 1, spraying layer 2, demister 3 are provided with fresh water (FW) rinse-system；Described self-loopa
Pump 5, weak solution pump 6, concentrated solution pump 8, water water-to-water heat exchanger 9, high temperature vapor-water heat exchanger 10 are provided with
Fresh water (FW) rinse-system.
Described solution reservoirs 4 is different according to organic solution composition, can arrange agitator and precipitation process system
System.
Claims (10)
1. a wet flue gas waste heat recovery heating system, this system includes wet flue gas recovery system, waste heat water utilization system, described wet flue gas recovery system includes absorption tower (1), bottom, described absorption tower (1) connects described waste heat water utilization system through solution reservoirs (4), it is characterized in that: described absorption tower (1) internal upper part is provided with spraying layer (2), organic solution in described solution reservoirs (4) is entered after spraying layer (2) absorbs steam by self-circulating pump (5) and becomes weak solution, and weak solution flows into described solution reservoirs (4).
A kind of wet flue gas waste heat recovery heating system the most according to claim 1, it is characterized in that: high temperature vapor-water heat exchanger (10) that the part weak solution that described waste heat water utilization system includes in described solution reservoirs (4) enters through weak solution pump (6), flash vessel (7), described high temperature vapor-water heat exchanger (10) connects described flash vessel (7).
A kind of wet flue gas waste heat recovery heating system the most according to claim 2, it is characterized in that: the indirect steam that described flash vessel (7) is discharged passes through low temperature vapor-water heat exchanger (11) heat exchange, heat-exchanging water enters a secondary net water circulation pipe of heat supply water supply system；The solution that described flash vessel (7) bottom is not evaporated returns described absorption tower (1) internal upper part through water water-to-water heat exchanger (9) and is provided with spraying layer (2).
A kind of wet flue gas waste heat recovery heating system the most according to claim 3, it is characterized in that: being connected between described flash vessel (7) with described water water-to-water heat exchanger (9) has concentrated solution pump (8), concentrated solution enters a secondary net water circulation pipe of heat supply water supply system through water water-to-water heat exchanger (9) and low temperature vapor-water heat exchanger (11) heat exchange, heat-exchanging water.
A kind of wet flue gas waste heat recovery heating system the most according to claim 1, is characterized in that: the spraying layer (2) in described absorption tower (1) is one or more layers.
A kind of wet flue gas waste heat recovery heating system the most according to claim 1, is characterized in that: the spraying layer (2) in described absorption tower (1) is arranged over demister (3).
A kind of wet flue gas waste heat recovery heating system the most according to claim 6, is characterized in that: described demister (3) is one or more layers.
A kind of wet flue gas waste heat recovery heating system the most according to claim 6, is characterized in that: described absorption tower (1), spraying layer (2), demister (3) are equipped with fresh water (FW) rinse-system.
A kind of wet flue gas waste heat recovery heating system the most according to claim 2, is characterized in that: described self-circulating pump (5), weak solution pump (6), concentrated solution pump (8), water water-to-water heat exchanger (9), high temperature vapor-water heat exchanger (10) are equipped with fresh water (FW) rinse-system.
A kind of wet flue gas waste heat recovery heating system the most according to claim 1, is characterized in that: described solution reservoirs (4) is provided with agitator and/or precipitation process system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620058131.XU CN205535893U (en) | 2016-01-20 | 2016-01-20 | Wet residual heat from flue gas heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620058131.XU CN205535893U (en) | 2016-01-20 | 2016-01-20 | Wet residual heat from flue gas heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205535893U true CN205535893U (en) | 2016-08-31 |
Family
ID=56766201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620058131.XU Expired - Fee Related CN205535893U (en) | 2016-01-20 | 2016-01-20 | Wet residual heat from flue gas heating system |
Country Status (1)
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|---|---|
| CN (1) | CN205535893U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328133A (en) * | 2017-07-17 | 2017-11-07 | 昊姆（上海）节能科技有限公司 | Direct combustion type open type absorbent unit |
| CN108106450A (en) * | 2017-07-10 | 2018-06-01 | 昊姆（上海）节能科技有限公司 | The Double-working-condition smoke processing system of whole year operation |
| CN108980881A (en) * | 2018-08-20 | 2018-12-11 | 张伟 | A kind of smoke processing system and method |
| CN109469918A (en) * | 2018-12-11 | 2019-03-15 | 中国华电科工集团有限公司 | A kind of flue heating regenerating unit |
| CN109821340A (en) * | 2019-02-21 | 2019-05-31 | 中国华电科工集团有限公司 | A kind of double regenerated smoke processing systems |
| CN109838804A (en) * | 2019-02-21 | 2019-06-04 | 中国华电科工集团有限公司 | A kind of device of double regenerating energy-savings |
| CN116658886A (en) * | 2023-05-18 | 2023-08-29 | 北京天地融创科技股份有限公司 | Boiler heat energy recovery device |
-
2016
- 2016-01-20 CN CN201620058131.XU patent/CN205535893U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106450A (en) * | 2017-07-10 | 2018-06-01 | 昊姆（上海）节能科技有限公司 | The Double-working-condition smoke processing system of whole year operation |
| CN108106450B (en) * | 2017-07-10 | 2023-03-10 | 昊姆（上海）节能科技有限公司 | Annual operating dual-working-condition flue gas treatment system |
| CN107328133A (en) * | 2017-07-17 | 2017-11-07 | 昊姆（上海）节能科技有限公司 | Direct combustion type open type absorbent unit |
| CN108980881A (en) * | 2018-08-20 | 2018-12-11 | 张伟 | A kind of smoke processing system and method |
| CN109469918A (en) * | 2018-12-11 | 2019-03-15 | 中国华电科工集团有限公司 | A kind of flue heating regenerating unit |
| CN109469918B (en) * | 2018-12-11 | 2024-01-30 | 中国华电科工集团有限公司 | Flue heating regenerating unit |
| CN109821340A (en) * | 2019-02-21 | 2019-05-31 | 中国华电科工集团有限公司 | A kind of double regenerated smoke processing systems |
| CN109838804A (en) * | 2019-02-21 | 2019-06-04 | 中国华电科工集团有限公司 | A kind of device of double regenerating energy-savings |
| CN109838804B (en) * | 2019-02-21 | 2023-09-26 | 中国华电科工集团有限公司 | Double-regeneration energy-saving device |
| CN109821340B (en) * | 2019-02-21 | 2024-01-30 | 中国华电科工集团有限公司 | Double-regeneration flue gas treatment system |
| CN116658886A (en) * | 2023-05-18 | 2023-08-29 | 北京天地融创科技股份有限公司 | Boiler heat energy recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180329 Address after: The Central District of Ji'nan city in Shandong province 250031 two road, No. 66, five latitude wealth free port business building room 805 Patentee after: Shandong Aoxiang Power Engineering Design Consulting Co., Ltd. Address before: 300384 the Binhai New Area of Tianjin Huayuan Industrial Zone Mei Yuan Lu 6 Haitai building seventeen layer Patentee before: Shield (Tianjin) energy saving system Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |