CN111330305A - Spray condensing and water recovering device in desulfurization absorption tower - Google Patents
Spray condensing and water recovering device in desulfurization absorption tower Download PDFInfo
- Publication number
- CN111330305A CN111330305A CN202010287448.1A CN202010287448A CN111330305A CN 111330305 A CN111330305 A CN 111330305A CN 202010287448 A CN202010287448 A CN 202010287448A CN 111330305 A CN111330305 A CN 111330305A
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- Prior art keywords
- water
- absorption tower
- guide plate
- liquid holding
- communicated
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 34
- 239000007921 spray Substances 0.000 title claims abstract description 30
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 13
- 230000023556 desulfurization Effects 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 238000009825 accumulation Methods 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 22
- 239000003546 flue gas Substances 0.000 description 19
- 239000000498 cooling water Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000026676 system process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a spray condensing and water recovering device in a desulfurization absorption tower.A liquid holding layer is fixed on the inner wall of the absorption tower, water accumulating tanks are distributed in sequence and are distributed at the same height, the water accumulating tanks are communicated with the liquid holding layer, a low-temperature spray device is positioned above the water accumulating tanks, the water accumulating tanks are positioned above demisters in the absorption tower, the water outlets of the liquid holding layers are communicated with the inlet of a water storage tank, and the outlet of the water storage tank is communicated with the inlet of the low-temperature spray device through a heat exchanger; the device is characterized in that a guide plate is arranged between every two adjacent water accumulation grooves, the middle of the guide plate is arched, one end of the guide plate is located above one water accumulation groove, the other end of the guide plate is located above the other water accumulation groove, each guide plate is located below the low-temperature spraying device, and the device can realize the spraying of saturated flue gas in the absorption tower to cool water and recycle condensed water.
Description
Technical Field
The invention belongs to the technical field of water conservation and environmental protection, and relates to a spray condensing and water recycling device in a desulfurization absorption tower.
Background
The clean flue gas discharged by the wet desulphurization system is saturated wet flue gas, the flue gas contains a large amount of water vapor, and for northern water-deficient areas, the water vapor in the recovered part of the flue gas can greatly relieve the embarrassment of water resource shortage, namely, the flue gas temperature in the tower is reduced, so that the flue gas is supersaturated, and condensed water is separated out, thereby achieving the purpose of reducing the moisture content in the flue gas.
Although the spray cooling technology in the tower can realize flue gas cooling, the recovery of condensed water cannot be realized, and the water balance of a desulfurization system can be damaged due to the overlarge water supplement amount.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a spray condensation and water recovery device in a desulfurization absorption tower, which can realize the recovery and utilization of spray cooling water and condensate water of saturated flue gas in the absorption tower.
In order to achieve the aim, the spray condensation and water recovery device in the desulfurization absorption tower comprises a water storage tank, a heat exchanger, a liquid holding layer arranged in the absorption tower, a low-temperature spray device and a plurality of water accumulation tanks;
the liquid holding layer is fixed on the inner wall of the absorption tower, the water accumulating tanks are distributed in sequence and are distributed at the same height, the water accumulating tanks are communicated with the liquid holding layer, the low-temperature spraying device is positioned above the water accumulating tanks, the water accumulating tanks are positioned above demisters in the absorption tower, the water outlets of the liquid holding layers are communicated with the inlet of the water storage tank, and the outlet of the water storage tank is communicated with the inlet of the low-temperature spraying device through a heat exchanger;
a guide plate is arranged between two adjacent water accumulation grooves, the middle part of the guide plate is arched, one end of the guide plate is positioned above one water accumulation groove, the other end of the guide plate is positioned above the other water accumulation groove, and each guide plate is positioned below the low-temperature spraying device.
All water accumulating tanks are distributed in parallel and at equal intervals.
The water accumulating tank is communicated with the liquid holding layer through a water conveying pipe.
The outlet of the heat exchanger is communicated with the water inlet of the low-temperature spray device through a circulating water pump.
The liquid holding layer is of an annular structure.
The invention has the following beneficial effects:
when the spray condensing and water recovering device in the desulfurization absorption tower is in specific operation, the low-temperature water sprayed by the low-temperature spray device is used for cooling flue gas, the sprayed low-temperature water is guided by the guide plate and then enters the water accumulating tank, then enters the water storage tank through the liquid holding layer, the water in the water storage tank is cooled by the heat exchanger and then enters the low-temperature spray device, so that the spray cooling water and the condensed water of saturated flue gas in the absorption tower are recycled, the cooling and condensing of the flue gas are completed on the premise of not influencing the water balance of the absorption tower, the purposes of reducing the flue gas moisture content of the absorption tower and slowing down the smoke plume phenomenon are achieved, and meanwhile, the spray cooling water and the condensed water are used as system process water, so that the spray condensing and water recovering device has great water saving potential.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the liquid holding layer 4 of the present invention.
Wherein, 1 is a guide plate, 2 is a water accumulating tank, 3 is a water delivery pipe, 4 is a liquid holding layer, 5 is a low-temperature spraying device, 6 is a demister, 7 is a water storage tank, 8 is a heat exchanger, and 9 is a circulating water pump.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, the spray condensing and water recovering device in the desulfurization absorption tower of the present invention comprises a water storage tank 7, a heat exchanger 8, and a liquid holding layer 4, a low temperature spray device 5 and a plurality of water accumulation tanks 2 arranged in the absorption tower; the liquid holding layer 4 is fixed on the inner wall of the absorption tower, the water accumulating tanks 2 are sequentially distributed, the water accumulating tanks 2 are distributed at the same height, the water accumulating tanks 2 are communicated with the liquid holding layer 4, the low-temperature spraying device 5 is positioned above the water accumulating tanks 2, the water accumulating tanks 2 are positioned above a demister 6 in the absorption tower, the water outlets of the liquid holding layer 4 are communicated with the inlet of a water storage tank 7, and the outlet of the water storage tank 7 is communicated with the inlet of the low-temperature spraying device 5 through a heat exchanger 8; a guide plate 1 is arranged between two adjacent water accumulation grooves 2, the middle part of the guide plate 1 is arched, one end of the guide plate 1 is positioned above one water accumulation groove 2, the other end of the guide plate 1 is positioned above the other water accumulation groove 2, and each guide plate 1 is positioned below the low-temperature spray device 5.
Specifically, the water accumulation grooves 2 are distributed in parallel and at equal intervals; the water accumulating tank 2 is communicated with the liquid holding layer 4 through a water conveying pipe 3; the outlet of the heat exchanger 8 is communicated with the water inlet of the low-temperature spray device 5 through a circulating water pump 9; the liquid holding layer 4 is of an annular structure.
The specific working process of the invention is as follows:
the flue gas flows from bottom to top in the absorption tower, passes through the flue gas channel between the water collecting grooves 2, flows out of the flue gas channel between the guide plates 1, and then flows out of the absorption tower after passing through the low-temperature spraying device 5.
The low-temperature spraying device 5 continuously sprays to cool and condense the flue gas, wherein the cooling water and the flue gas condensate water fall downwards to the guide plate 1 under the action of gravity, then automatically flow into the water accumulating tanks 2 from two sides of the guide plate 1, the water collected by each row of water accumulating tanks 2 automatically flows to two side areas from the middle area of the water accumulating tanks 2, then flow into the liquid holding layer 4 through the water conveying pipes 3, the water output by the liquid holding layer 4 is discharged into the water storage tank 7, the water with fixed flow in the water storage tank 7 is cooled through the heat exchange of the heat exchanger 8, and then returns to the low-temperature spraying device 5 through the circulating water pump 9, so that the spraying cooling water is recycled. Because the cooling water and the condensed water have better quality, the water added in the water storage tank 7 can be used as the process water of the system, such as the washing of a demister 6, the water supplement in a tower and the like.
The invention is mainly characterized in that: the fluid channel is changed through the water accumulating tank 2 and the guide plate 1, cooling water and condensed water in the absorption tower are efficiently separated from the flue gas, then the spraying cooling water and the condensed water are collected, cooling condensation on the flue gas is completed on the premise of not influencing the water balance of the absorption tower, the purposes of reducing the flue gas moisture content of the absorption tower and slowing down the smoke plume phenomenon are achieved, and meanwhile, the spraying cooling water and the condensed water are used as system process water, so that the water-saving device has great water-saving potential. Meanwhile, as the water accumulating tank 2 is arranged behind the demister 6, the cooling water and the condensed water are clean, the cooling water can be used as spraying cooling water for recycling, and frequent detection or regular water quality replacement is not needed.
Claims (5)
1. A spray condensing and water recovering device in a desulfurization absorption tower is characterized by comprising a water storage tank (7), a heat exchanger (8), a liquid holding layer (4) arranged in the absorption tower, a low-temperature spray device (5) and a plurality of water accumulating tanks (2);
the liquid holding layer (4) is fixed on the inner wall of the absorption tower, the water accumulating tanks (2) are sequentially distributed, the water accumulating tanks (2) are distributed at the same height, the water accumulating tanks (2) are communicated with the liquid holding layer (4), the low-temperature spraying device (5) is positioned above the water accumulating tanks (2), the water accumulating tanks (2) are positioned above demisters (6) in the absorption tower, the water outlets of the liquid holding layer (4) are communicated with the inlet of the water storage tank (7), and the outlet of the water storage tank (7) is communicated with the inlet of the low-temperature spraying device (5) through a heat exchanger (8);
a guide plate (1) is arranged between two adjacent water accumulation grooves (2), the middle part of the guide plate (1) is arched, one end of the guide plate (1) is positioned above one water accumulation groove (2), the other end of the guide plate (1) is positioned above the other water accumulation groove (2), and each guide plate (1) is positioned below the low-temperature spraying device (5).
2. The spray condensing and water recovering apparatus in a desulfurizing absorption tower according to claim 1, wherein the water collecting tanks (2) are arranged in parallel and at equal intervals.
3. The spray condensing and water recovering device in a desulfurization absorption tower according to claim 1, wherein the water collecting tank (2) is communicated with the liquid holding layer (4) through a water pipe (3).
4. The spray condensation and water recovery device in the tower of desulfurization absorption tower according to claim 1, characterized in that the outlet of the heat exchanger (8) is communicated with the water inlet of the low temperature spray device (5) through a circulating water pump (9).
5. The spray condensing and water recovering device in a desulfurization absorption tower according to claim 1, wherein the liquid holding layer (4) has an annular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010287448.1A CN111330305A (en) | 2020-04-13 | 2020-04-13 | Spray condensing and water recovering device in desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010287448.1A CN111330305A (en) | 2020-04-13 | 2020-04-13 | Spray condensing and water recovering device in desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111330305A true CN111330305A (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010287448.1A Pending CN111330305A (en) | 2020-04-13 | 2020-04-13 | Spray condensing and water recovering device in desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111330305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090249A (en) * | 2020-08-20 | 2020-12-18 | 山东中实易通集团有限公司 | Process water preheating process for semi-dry desulfurization and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211743A (en) * | 2018-03-09 | 2018-06-29 | 无锡雪浪环境科技股份有限公司 | A kind of deacidifying flue gas denitrification integrated device and its application method |
| CN108421342A (en) * | 2018-04-09 | 2018-08-21 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Spraying cooling eliminates the device of white cigarette in a kind of desulfuration absorbing tower |
| CN109289228A (en) * | 2018-10-10 | 2019-02-01 | 中国华电科工集团有限公司 | A kind of device and method for heat-engine plant desulfurized Ta Tanei spraying cooling eliminating white smoke |
| CN109482035A (en) * | 2019-01-03 | 2019-03-19 | 国电环境保护研究院有限公司 | A kind of desulfurization fume multi-stage condensing system |
| CN211987168U (en) * | 2020-04-13 | 2020-11-24 | 华能国际电力股份有限公司 | Spray condensing and water recovering device in desulfurization absorption tower |
-
2020
- 2020-04-13 CN CN202010287448.1A patent/CN111330305A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211743A (en) * | 2018-03-09 | 2018-06-29 | 无锡雪浪环境科技股份有限公司 | A kind of deacidifying flue gas denitrification integrated device and its application method |
| CN108421342A (en) * | 2018-04-09 | 2018-08-21 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Spraying cooling eliminates the device of white cigarette in a kind of desulfuration absorbing tower |
| CN109289228A (en) * | 2018-10-10 | 2019-02-01 | 中国华电科工集团有限公司 | A kind of device and method for heat-engine plant desulfurized Ta Tanei spraying cooling eliminating white smoke |
| CN109482035A (en) * | 2019-01-03 | 2019-03-19 | 国电环境保护研究院有限公司 | A kind of desulfurization fume multi-stage condensing system |
| CN211987168U (en) * | 2020-04-13 | 2020-11-24 | 华能国际电力股份有限公司 | Spray condensing and water recovering device in desulfurization absorption tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090249A (en) * | 2020-08-20 | 2020-12-18 | 山东中实易通集团有限公司 | Process water preheating process for semi-dry desulfurization and application |
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Application publication date: 20200626 |