CN205019944U - Flue gas desulfurization device - Google Patents
Flue gas desulfurization device Download PDFInfo
- Publication number
- CN205019944U CN205019944U CN201520785097.1U CN201520785097U CN205019944U CN 205019944 U CN205019944 U CN 205019944U CN 201520785097 U CN201520785097 U CN 201520785097U CN 205019944 U CN205019944 U CN 205019944U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- desulfurization
- heat exchanger
- heat
- desulfurizing tower
- 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.)
- Ceased
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 70
- 230000023556 desulfurization Effects 0.000 title claims abstract description 70
- 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 51
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 28
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 21
- 239000002918 waste heat Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a flue gas desulfurization device, its includes a desulfurizing tower, be provided with the spray set who is used for spraying desulfurizing slurry in the desulfurizing tower, the desulfurizing tower bottom is provided with and is used for the storage desulfurizing slurry's kerve the kerve top is provided with the air inlet, the desulfurizing tower top is provided with the gas outlet, the desulfurizing tower is connected with at least one heat exchanger. The utility model provides a flue gas desulfurization device, in the desulfurization absorption tower or (with) the outside is provided with the heat exchanger, retrieves the heat among flue gas waste heat and the desulfurizing slurry in flue gas desulfurization. Like this, on the one hand can with the flue gas or (with) partial heat among the desulfurizing slurry draws out, reaches energy -conserving purpose, on the other hand can further reduce the clean flue -gas temperature of desulfurization export, and the liquid drop that reduces clean flue gas carries, improves flue gas desulfurization efficiency and dust collection efficiency.
Description
Technical Field
The utility model relates to a flue gas desulfurization device.
Background
In the conventional wet flue gas desulfurization process, in a desulfurization tower, flue gas needs to be washed by desulfurization slurry, in the process, the desulfurization slurry can absorb the heat of the flue gas, and water in part of the desulfurization slurry can absorb the heat and then is evaporated to form water vapor and mixed with the flue gas, so that the washed flue gas becomes wet saturated flue gas, and meanwhile, part of the heat in the flue gas can be absorbed by most of the desulfurization slurry, so that the temperature of the recovered desulfurization slurry is raised.
In the existing desulfurization system, on one hand, saturated flue gas formed after flue gas is washed by desulfurization slurry can carry a large amount of latent heat of vaporization to be directly discharged, so that heat loss and environmental pollution can be caused; on the other hand, the heat in the desulfurization slurry is directly discharged without being recycled, and heat loss is also caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a flue gas desulfurization device with waste heat recovery utilizes device, makes it reach when carrying out the desulfurization to the flue gas, retrieves flue gas waste heat or (and) retrieve the purpose of waste heat in the desulfurization thick liquid.
In order to solve the technical problem, the utility model provides a flue gas desulfurization device, it includes a desulfurizing tower, be provided with the spray set who is used for spraying the desulfurization thick liquid in the desulfurizing tower, the desulfurizing tower bottom is provided with and is used for the storage the kerve of desulfurization thick liquid，An air inlet is arranged above the bottom groove, an air outlet is arranged at the top of the desulfurizing tower, and the desulfurizing tower is connected with at least one heat exchanger.
Preferably, the heat exchanger is disposed in the bottom tank of the desulfurization tower.
Preferably, a circulation tank connected with the bottom tank through a pipeline is arranged outside the desulfurizing tower, and the heat exchanger is arranged in the circulation tank.
Preferably, a circulating pipe is arranged between the bottom tank and the spraying device, and the heat exchanger is connected with the circulating pipe in series.
Preferably, the desulfurization tower is provided with two spraying devices, an intermediate tank is arranged between the two spraying devices, a second circulating pipe is arranged between the intermediate tank and the spraying device above the intermediate tank, and the heat exchanger is connected with the second circulating pipe in series.
Preferably, the heat exchanger is arranged between the sump and the spray device.
Preferably, a demister is arranged above the spraying device, and the heat exchanger is arranged between the spraying device and the demister.
The heat exchangers can be arranged independently or simultaneously.
The inventor finds that the desulfurization efficiency and the dust removal efficiency can be improved after the flue gas absorbs heat and is cooled by the heat exchanger, pollutants in the flue gas are reduced, and the phenomenon that the white smoke is emitted by the flue gas is reduced. The desulfurization slurry can indirectly reduce the temperature of the flue gas after absorbing heat and cooling by the heat exchanger.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
FIG. 1 is a schematic diagram of a flue gas desulfurization unit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a flue gas desulfurization unit according to another embodiment of the present invention;
FIG. 3 shows a modified embodiment of FIG. 2;
FIG. 4 is a schematic diagram of a flue gas desulfurization unit according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a flue gas desulfurization apparatus according to another embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
Fig. 1 is a schematic diagram of a flue gas desulfurization apparatus according to an embodiment of the present invention. Referring to fig. 1, the utility model provides a flue gas desulfurization device, it includes a desulfurizing tower 1, be provided with the spray set 11 that is used for spraying the desulfurization thick liquid in the desulfurizing tower 1, 1 bottom of desulfurizing tower is provided with and is used for the storage the kerve 12 of desulfurization thick liquid, kerve 12 top is provided with air inlet 13, 1 top of desulfurizing tower is provided with gas outlet 14, desulfurizing tower 1 is connected with at least one heat exchanger 2.
As described in the background art, in the conventional desulfurization tower, heat recovery is not considered, and thus a large amount of heat is wasted. The utility model discloses a set up with heat exchanger 2 that desulfurizing tower 1 is connected comes to carry out recycle to the absorptive heat in the desulfurization in-process follow flue gas. In particular, the present invention relates to a method for producing,
as shown in fig. 1, the heat exchanger 2 can be directly disposed in the bottom tank 12 of the desulfurization tower 1, that is, can be directly disposed in the desulfurization slurry flowing down by spraying, so that the heat in the desulfurization slurry can be transferred to a heat consumer through the heat exchanger 2. For example, the device can be used for heating air for boilers, heating, industrial steam extraction and other heat users.
Of course, a circulation tank (not shown in the figure) connected with the bottom tank 12 through a pipeline can be arranged outside the desulfurizing tower 1, and then the heat exchanger 2 is arranged in the circulation tank, so that the heat recovery of the desulfurizing slurry can be realized, and the heat exchanger 2 can be conveniently maintained.
The heat exchanger 2 can adopt a heat pump type heat exchanger, so that the heat exchange efficiency can be improved.
Fig. 2 is a schematic diagram of a flue gas desulfurization device according to another embodiment of the present invention, and referring to fig. 2, a circulation pipe 15 is disposed between the bottom tank 12 and the spraying device 11, and the heat exchanger 2 is connected in series with the circulation pipe 15, so that the desulfurization slurry passes through the heat exchanger 2 during the circulation process, and the heat can be exchanged and transferred to a heat consumer.
Fig. 3 shows a modified embodiment based on fig. 2, and referring to fig. 3, for the desulfurization tower 1 adopting the same-tower double-circulation desulfurization process, that is, when the desulfurization tower 1 is provided with two spray devices 11, an intermediate tank 16 is arranged between the two spray devices 11, a second circulation pipe 17 is arranged between the intermediate tank 16 and the upper spray device 11, and the heat exchanger 2 is connected in series with the second circulation pipe 17, so that the desulfurization slurry passes through the heat exchanger 2 during circulation, and the heat of the desulfurization slurry can be exchanged and transferred to a heat user.
The intermediate tank 16 may be connected to an intermediate tank 19 outside the desulfurization tower 1 by a pipe and then circulated to the spray device 11 above via the second circulation pipe 17.
Of course, the heat exchanger 2 can also be arranged on the circulating pipe 15 between the bottom tank 12 and the spraying device 11, so that the heat exchange efficiency is higher.
Fig. 4 is a schematic diagram of a flue gas desulfurization apparatus according to another embodiment of the present invention. Referring to fig. 4, the heat exchanger 2 is arranged between the bottom tank 12 and the spraying device 11, and the flue gas passes through the spraying device 11 after passing through the heat exchanger 2; when the desulfurization slurry and the flue gas pass through the heat exchanger, heat is exchanged by the heat exchanger 2, and the heat is transferred to a heat user.
Fig. 5 is a schematic diagram of a flue gas desulfurization apparatus according to another embodiment of the present invention. Referring to fig. 5, a demister 18 is disposed above the spraying device 11, and the heat exchanger 2 is disposed between the spraying device 11 and the demister 18.
In order to improve the heat exchange efficiency, the heat exchangers in the above embodiments may be arranged separately or simultaneously.
The utility model is different from the prior art in that a heat exchanger is arranged in the desulfurization absorption tower or (and) outside, and the heat in the flue gas waste heat and the desulfurization slurry is recovered while the flue gas is desulfurized. After the novel technology is adopted, on one hand, partial heat in the flue gas or (and) the desulfurization slurry can be extracted, and the purpose of energy conservation is achieved; on the other hand, the clean flue gas temperature at the desulfurization outlet can be further reduced, the liquid drop carrying of the clean flue gas is reduced, and the flue gas desulfurization efficiency and the dust removal efficiency are improved.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (7)
1. The utility model provides a flue gas desulfurization device, its includes a desulfurizing tower, be provided with the spray set who is used for spraying the desulfurization thick liquid in the desulfurizing tower, the desulfurizing tower bottom is provided with and is used for the storage the kerve of desulfurization thick liquid the kerve top is provided with the air inlet, the desulfurizing tower top is provided with the gas outlet, its characterized in that, the desulfurizing tower is connected with at least one heat exchanger.
2. The flue gas desulfurization apparatus according to claim 1, wherein the heat exchanger is disposed in the bottom tank of the desulfurization tower.
3. The flue gas desulfurization device according to claim 1, wherein a circulation tank connected to the bottom tank through a pipe is provided outside the desulfurization tower, and the heat exchanger is disposed in the circulation tank.
4. The flue gas desulfurization device according to claim 1, wherein a circulation pipe is provided between the bottom tank and the spray device, and the heat exchanger is connected in series with the circulation pipe.
5. The flue gas desulfurization device according to claim 1, wherein the desulfurization tower is provided with two spray devices, an intermediate tank is provided between the two spray devices, a second circulation pipe is provided between the intermediate tank and the spray device above, and the heat exchanger is connected in series with the second circulation pipe.
6. The flue gas desulfurization device according to claim 1, wherein the heat exchanger is disposed between the bottom tank and the spray device.
7. The flue gas desulfurization device according to claim 1, wherein a demister is disposed above the spray device, and the heat exchanger is disposed between the spray device and the demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785097.1U CN205019944U (en) | 2015-10-12 | 2015-10-12 | Flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785097.1U CN205019944U (en) | 2015-10-12 | 2015-10-12 | Flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205019944U true CN205019944U (en) | 2016-02-10 |
Family
ID=55252512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520785097.1U Ceased CN205019944U (en) | 2015-10-12 | 2015-10-12 | Flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205019944U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445232A (en) * | 2017-09-30 | 2017-12-08 | 北京兴晟科技有限公司 | A kind of Waste water concentrating device |
| CN107684817A (en) * | 2016-08-03 | 2018-02-13 | 天津华赛尔传热设备有限公司 | A kind of flue gas desulfurization process system |
| CN108031271A (en) * | 2018-01-18 | 2018-05-15 | 北京兴晟科技有限公司 | A kind of flue gas desulfurization device |
| CN108159868A (en) * | 2018-03-15 | 2018-06-15 | 烟台龙源电力技术股份有限公司 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
| CN108211689A (en) * | 2018-01-18 | 2018-06-29 | 北京兴晟科技有限公司 | A kind of desulfurating dust removing device for flue gas |
-
2015
- 2015-10-12 CN CN201520785097.1U patent/CN205019944U/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684817A (en) * | 2016-08-03 | 2018-02-13 | 天津华赛尔传热设备有限公司 | A kind of flue gas desulfurization process system |
| CN107445232A (en) * | 2017-09-30 | 2017-12-08 | 北京兴晟科技有限公司 | A kind of Waste water concentrating device |
| CN108031271A (en) * | 2018-01-18 | 2018-05-15 | 北京兴晟科技有限公司 | A kind of flue gas desulfurization device |
| CN108211689A (en) * | 2018-01-18 | 2018-06-29 | 北京兴晟科技有限公司 | A kind of desulfurating dust removing device for flue gas |
| CN108159868A (en) * | 2018-03-15 | 2018-06-15 | 烟台龙源电力技术股份有限公司 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
| CN108159868B (en) * | 2018-03-15 | 2024-04-26 | 烟台龙源电力技术股份有限公司 | Desulfurization waste water and chimney white smoke plume cooperative treatment system |
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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: 20170418 Address after: 100161 Beijing city Fengtai District Sirirath pond No. 26, No. 9 Building 1 layer A157 Patentee after: Beijing Xing Sheng Technology Co., Ltd. Address before: 100097 Beijing city Haidian District landianchang road fine snow Park No. 7 Building 1 unit 10A Patentee before: Li Aiyun |
|
| TR01 | Transfer of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20190201 Decision number of declaring invalidation: 38875 Granted publication date: 20160210 |
|
| IW01 | Full invalidation of patent right |