CN110425924A - A kind of packed tower of heat transfer spray stage by stage, the flue gas processing method of flue gas waste heat recovery - Google Patents
A kind of packed tower of heat transfer spray stage by stage, the flue gas processing method of flue gas waste heat recovery Download PDFInfo
- Publication number
- CN110425924A CN110425924A CN201910797490.5A CN201910797490A CN110425924A CN 110425924 A CN110425924 A CN 110425924A CN 201910797490 A CN201910797490 A CN 201910797490A CN 110425924 A CN110425924 A CN 110425924A
- Authority
- CN
- China
- Prior art keywords
- spray
- stage
- packed tower
- flue gas
- heat transfer
- 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
- 239000007921 spray Substances 0.000 title claims abstract description 76
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000003546 flue gas Substances 0.000 title claims abstract description 53
- 238000012546 transfer Methods 0.000 title claims abstract description 38
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 239000002918 waste heat Substances 0.000 title claims abstract description 23
- 238000003672 processing method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000945 filler Substances 0.000 claims abstract description 29
- 230000000712 assembly Effects 0.000 claims abstract description 17
- 238000000429 assembly Methods 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The packed tower of heat transfer spray stage by stage, the flue gas processing method of a kind of flue gas waste heat recovery provided by the invention, including spray packed tower outer housing have been sequentially arranged spray assemblies and filler in the inner cavity of the spray packed tower outer housing from top to bottom；Sprayer Circulation water inlet, smoke inlet and Sprayer Circulation water out are successively offered on the side wall of the spray packed tower outer housing from top to bottom, wherein Sprayer Circulation water inlet is communicated with spray assemblies；Smoke inlet is arranged in the lower section of filler；Sprayer Circulation water out is arranged in the lower section of smoke inlet；Exhanst gas outlet is provided at the top of the spray packed tower outer housing；The present invention is larger due to flue gas condensing temperature losses of the process, previous stage flue-gas temperature is high, heat transfer temperature difference is big, the latter half flue-gas temperature is low, heat transfer temperature difference is small, and two stages heat transfer characteristic is different, and hollow-spraying-tower heat exchange and packed tower heat exchange are combined, the advantages of heat transfer process is divided into two stages handling, have both spray column and packed tower.
Description
Technical field
The invention belongs to flue gas waste heat recovery field, the heat transfer spray filler stage by stage of especially a kind of flue gas waste heat recovery
Tower, flue gas processing method.
Background technique
Direct heat exchange equipment currently used for flue gas waste heat recovery is there are mainly two types of mode: hollow-spraying-tower heat exchange and packed tower
Heat exchange.
Recirculated water is atomized into minimum drop using nozzle by hollow-spraying-tower heat exchange, is substantially increased vapor-liquid two phases and is connect
Contacting surface product, moment complete heat transfer and mass transfer, and reach enhanced heat exchange purpose, flue gas and water can be realized stable connect under the very little temperature difference
Touching heat exchange, using misting cooling non-filling, running resistance is small, invests small；Packed tower can eliminate the flue gas stream of hollow-spraying-tower heat exchange
The influence of dynamic bias current and vortex, the vibration of tower body caused by avoiding thus, to increase the service life of tower, enhances the safety of tower
Reliability improves the stability of gas-liquid heat exchange, but filler cost of investment also obviously increases.
Summary of the invention
The purpose of the present invention is to provide a kind of packed towers of heat transfer spray stage by stage of flue gas waste heat recovery, fume treatment side
Method solves the two ways Shortcomings place of existing flue gas waste heat recovery.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery provided by the invention, including spraying filler shell
Body has been sequentially arranged spray assemblies and filler in the inner cavity of the spray packed tower outer housing from top to bottom；The spraying filler
Sprayer Circulation water inlet, smoke inlet and Sprayer Circulation water out are successively offered on the side wall of shell body from top to bottom,
In, Sprayer Circulation water inlet is communicated with spray assemblies；Smoke inlet is arranged in the lower section of filler；Sprayer Circulation water out is arranged in
The lower section of smoke inlet；Exhanst gas outlet is provided at the top of the spray packed tower outer housing.
Preferably, it is additionally provided with liquid distributor in the inner cavity of the spray packed tower outer housing, the liquid distributor, which is arranged in, to be filled out
The top of material.
Preferably, spray heat transfer space is formed between liquid distributor and spray assemblies.
Preferably, the filler is structured packing.
Preferably, the lower end of filler is provided with packing support plate.
Preferably, packing support plate is an integral structure with spray packed tower outer housing.
Preferably, it is also provided with manhole in the upper portion side wall of the spray packed tower outer housing, the manhole is arranged in spray
Drench the top of component.
A method of using the packed tower of the heat transfer spray stage by stage processing flue gas of the flue gas waste heat recovery, including with
Lower step:
Flue gas carries out cylinder from smoke inlet, successively passes through filler and spray assemblies, is finally discharged from exhanst gas outlet；
Sprayer Circulation water enters cylinder from Sprayer Circulation water inlet, successively passes through spray assemblies and filler, finally from spray
Circulating water outlet discharge；
Flue gas carries out first time heat exchange with Sprayer Circulation water first on filler, enters spray heat transfer space later, with spray
It drenches recirculated water and carries out second of heat exchange.
Compared with prior art, the beneficial effects of the present invention are:
The packed tower of heat transfer spray stage by stage and flue gas processing method of a kind of flue gas waste heat recovery provided by the invention, due to
Flue gas condensing temperature losses of the process is larger, and previous stage flue-gas temperature is high, and heat transfer temperature difference is big, and the latter half flue-gas temperature is low, heat exchange temperature
Difference is small, and two stages heat transfer characteristic is different, and hollow-spraying-tower heat exchange and packed tower heat exchange are combined, heat transfer process is divided into two ranks
The advantages of Duan Jinhang is handled, and has both spray column and packed tower；It is exchanged heat in the flue gas condensing first stage using packing layer, eliminates void tower
The bias current of the flow of flue gas of heat exchange and the influence of vortex are sprayed, the vibration of tower body caused by avoiding thus, to increase the use of tower
Service life enhances the security reliability of tower, improves the stability of gas-liquid heat exchange；It is exchanged heat in flue gas condensing second stage using spray,
Vapor-liquid two phases contact area is substantially increased, enhanced heat exchange purpose is reached, makes flue gas and recirculated water under the smaller temperature difference
It realizes and heat exchange is steadily contacted, running resistance is small, reduces investment.
Further, liquid distributor enables to Sprayer Circulation water to be uniformly distributed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spray packed tower of the present invention.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery provided by the invention, including spray
Packed tower outer housing 1, Sprayer Circulation water inlet 2, liquid distributor 3, Sprayer Circulation water out 4, smoke inlet 7, filler 8, spray group
Part 9, manhole 10, exhanst gas outlet 11, packing support plate 13 and spray heat transfer space 14, wherein the spray packed tower outer housing 1
Including circular cylinder body and upper ellipsoidal head, upper ellipsoidal head lid is mounted in the upper end of circular cylinder body；The circular cylinder body it is interior
Spray assemblies 9, liquid distributor 3 and filler 8 have been sequentially arranged in chamber from top to bottom；On the side wall of the circular cylinder body from top to bottom according to
It is secondary to offer Sprayer Circulation water inlet 2, smoke inlet 7 and Sprayer Circulation water out 4, wherein Sprayer Circulation water inlet 2 and spray
Component 9 communicates；Smoke inlet 7 is arranged in the lower section of filler 8；Sprayer Circulation water out 4 is arranged in the lower section of smoke inlet 7.
Spray heat transfer space 14 is formed between liquid distributor 3 and spray assemblies 9.
The lower end of filler 8 is provided with packing support plate 13.
The filler 8 is structured packing, and the structured packing includes grid packing, ripple packing and Impulse packing.
Packing support plate 13 is an integral structure with spray packed tower outer housing 1.Filler 8 is placed on packing support plate 13
On.
Manhole 10 is also provided on the circular cylinder body, manhole 10 is arranged in the top of spray assemblies 9；It is filled out in order to spray
Expect the installation and maintenance, maintenance of tower body interior element of installation.
Exhanst gas outlet 11 is offered at the top of the upper ellipsoidal head.
The working principle of the invention is:
Flue gas carries out cylinder from the smoke inlet 7 that cylinder body bottom is arranged in, and successively passes through filler 8, liquid distributor 3, spray group
Part 9 is finally discharged from the exhanst gas outlet 11 being arranged on upper ellipsoidal head；
Sprayer Circulation water enters cylinder from the Sprayer Circulation water inlet 2 that cylinder top is arranged in, and successively passes through spray assemblies
9, liquid distributor 3 and filler 8 are finally discharged from the Sprayer Circulation water out 4 that cylinder body bottom is arranged in；
Flue gas carries out first time heat exchange with Sprayer Circulation water first on filler 8, enters spray heat transfer space 14 later, with
Sprayer Circulation water carries out second and exchanges heat.
Liquid distributor 3 is uniformly distributed for realizing Sprayer Circulation water.
The invention has the following advantages that
1, the heat transfer spray packed tower stage by stage of flue gas waste heat recovery provided by the invention, it is previous according to flue gas condensing process
Hollow-spraying-tower heat exchange and packed tower heat exchange are combined, will be changed by the feature that stage heat transfer temperature difference is big, the latter half heat transfer temperature difference is small
The advantages of thermal process is divided into two stages and is handled, have both spray column and packed tower.
2, the heat transfer spray packed tower stage by stage of flue gas waste heat recovery provided by the invention, is adopted in the flue gas condensing first stage
It is exchanged heat with packing layer, eliminates the bias current of the flow of flue gas of hollow-spraying-tower heat exchange and the influence of vortex, tower body caused by avoiding thus
Vibration, to increase the service life of tower, enhances the security reliability of tower, improves the stability of gas-liquid heat exchange.
3, the heat transfer spray packed tower stage by stage of flue gas waste heat recovery provided by the invention is adopted in flue gas condensing second stage
With spray exchange heat, substantially increase vapor-liquid two phases contact area, reach enhanced heat exchange purpose, make flue gas and recirculated water compared with
Steady contact heat exchange can be realized under the small temperature difference, running resistance is small, reduces investment.
Claims (8)
1. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery, which is characterized in that including spray packed tower outer housing
(1), it has been sequentially arranged spray assemblies (9) and filler (8) from top to bottom in the inner cavity of the spray packed tower outer housing (1)；Institute
It states and successively offers Sprayer Circulation water inlet (2), smoke inlet (7) on the side wall of spray packed tower outer housing (1) from top to bottom
With Sprayer Circulation water out (4), wherein Sprayer Circulation water inlet (2) is communicated with spray assemblies (9)；Smoke inlet (7) is arranged in
The lower section of filler (8)；Sprayer Circulation water out (4) is arranged in the lower section of smoke inlet (7)；The spray packed tower outer housing
(1) exhanst gas outlet (11) are provided at the top of.
2. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery according to claim 1, which is characterized in that institute
It states and is additionally provided in the inner cavity of spray packed tower outer housing (1) liquid distributor (3), the liquid distributor (3) is arranged in the upper of filler (8)
Side.
3. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery according to claim 1, which is characterized in that cloth
Spray heat transfer space (14) is formed between liquid device (3) and spray assemblies (9).
4. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery according to claim 1, which is characterized in that institute
Stating filler (8) is structured packing.
5. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery according to claim 4, which is characterized in that fill out
The lower end of material (8) is provided with packing support plate (13).
6. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery according to claim 5, which is characterized in that fill out
Material support plate (13) is an integral structure with spray packed tower outer housing (1).
7. a kind of heat transfer spray packed tower stage by stage of flue gas waste heat recovery according to claim 1, which is characterized in that institute
It states and is also provided in the upper portion side wall of spray packed tower outer housing (1) manhole (10), the manhole (10) is arranged in spray assemblies
(9) top.
8. a kind of packed tower of heat transfer spray stage by stage using the flue gas waste heat recovery of any of claims 1-7 is handled
The method of flue gas, which comprises the following steps:
Flue gas carries out cylinder from smoke inlet (7), successively passes through filler (8) and spray assemblies (9), finally from exhanst gas outlet (11)
Discharge；
Sprayer Circulation water from Sprayer Circulation water inlet (2) enter cylinder, successively pass through spray assemblies (9) and filler (8), finally from
Sprayer Circulation water out (4) discharge；
Flue gas carries out first time heat exchange with Sprayer Circulation water first on filler (8), enters spray heat transfer space (14) later, with
Sprayer Circulation water carries out second and exchanges heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797490.5A CN110425924A (en) | 2019-08-27 | 2019-08-27 | A kind of packed tower of heat transfer spray stage by stage, the flue gas processing method of flue gas waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797490.5A CN110425924A (en) | 2019-08-27 | 2019-08-27 | A kind of packed tower of heat transfer spray stage by stage, the flue gas processing method of flue gas waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110425924A true CN110425924A (en) | 2019-11-08 |
Family
ID=68417736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910797490.5A Pending CN110425924A (en) | 2019-08-27 | 2019-08-27 | A kind of packed tower of heat transfer spray stage by stage, the flue gas processing method of flue gas waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110425924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023097891A1 (en) * | 2021-11-30 | 2023-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Desulfurization slurry flash evaporation system using segmented heat exchange |
| WO2023097893A1 (en) * | 2021-11-30 | 2023-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Vertically integrated desulfurization slurry flash evaporation heat extraction system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060093534A1 (en) * | 2004-11-01 | 2006-05-04 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas treatment apparatus |
| CN104165531A (en) * | 2014-08-13 | 2014-11-26 | 北京源深节能技术有限责任公司 | Packed tower for flue gas waste heat recovery |
| CN104174274A (en) * | 2014-08-13 | 2014-12-03 | 北京源深节能技术有限责任公司 | Spray packing tower for flue gas waste heat recovery |
| CN204768223U (en) * | 2015-07-06 | 2015-11-18 | 云南亚太环境工程设计研究有限公司 | Novel hot flue gas desulfurization denitrating tower of modified |
| CN209138328U (en) * | 2018-11-14 | 2019-07-23 | 天津日康环保设备股份有限公司 | A kind of spray column for wet-process waste gas purification |
| CN210426247U (en) * | 2019-08-27 | 2020-04-28 | 中国华能集团清洁能源技术研究院有限公司 | Staged heat exchange spraying packed tower for flue gas waste heat recovery |
-
2019
- 2019-08-27 CN CN201910797490.5A patent/CN110425924A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060093534A1 (en) * | 2004-11-01 | 2006-05-04 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas treatment apparatus |
| CN104165531A (en) * | 2014-08-13 | 2014-11-26 | 北京源深节能技术有限责任公司 | Packed tower for flue gas waste heat recovery |
| CN104174274A (en) * | 2014-08-13 | 2014-12-03 | 北京源深节能技术有限责任公司 | Spray packing tower for flue gas waste heat recovery |
| CN204768223U (en) * | 2015-07-06 | 2015-11-18 | 云南亚太环境工程设计研究有限公司 | Novel hot flue gas desulfurization denitrating tower of modified |
| CN209138328U (en) * | 2018-11-14 | 2019-07-23 | 天津日康环保设备股份有限公司 | A kind of spray column for wet-process waste gas purification |
| CN210426247U (en) * | 2019-08-27 | 2020-04-28 | 中国华能集团清洁能源技术研究院有限公司 | Staged heat exchange spraying packed tower for flue gas waste heat recovery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023097891A1 (en) * | 2021-11-30 | 2023-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Desulfurization slurry flash evaporation system using segmented heat exchange |
| WO2023097893A1 (en) * | 2021-11-30 | 2023-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Vertically integrated desulfurization slurry flash evaporation heat extraction system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191108 |