CN206730770U - A kind of wet process of FGD phase transformation coalescence dedusting demister - Google Patents
A kind of wet process of FGD phase transformation coalescence dedusting demister Download PDFInfo
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- CN206730770U CN206730770U CN201720426636.1U CN201720426636U CN206730770U CN 206730770 U CN206730770 U CN 206730770U CN 201720426636 U CN201720426636 U CN 201720426636U CN 206730770 U CN206730770 U CN 206730770U
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- demister
- cooler
- fgd
- phase transformation
- wet process
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000009466 transformation Effects 0.000 title claims abstract description 13
- 230000008569 process Effects 0.000 title claims abstract description 12
- 238000004581 coalescence Methods 0.000 title claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims abstract description 8
- 239000003595 mist Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000011010 flushing procedure Methods 0.000 claims abstract description 4
- 230000003134 recirculating effect Effects 0.000 claims abstract description 4
- 235000019504 cigarettes Nutrition 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003546 flue gas Substances 0.000 abstract description 13
- 239000000428 dust Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 6
- 238000013459 approach Methods 0.000 abstract description 5
- 241001061906 Caragana Species 0.000 abstract description 4
- 241000607479 Yersinia pestis Species 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 239000013618 particulate matter Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Separation Of Particles Using Liquids (AREA)
- Treating Waste Gases (AREA)
Abstract
A kind of wet process of FGD phase transformation coalescence dedusting demister, spraying layer including being arranged on absorption tower gas approach top, it is successively set on the pipe grating cooler and demister on spraying layer top, cooler flooding nozzle and mist eliminator flushing nozzle are respectively arranged with the pipe grating cooler and demister, the pipe grating cooler cooling water is derived from recirculating cooling water system by cooling circulating water pump；Using wet process of FGD phase transformation coalescence dedusting demister of the present utility model, flue gas supersaturation after the cooling of pipe grating cooler separates out steam, fine dust particle and fine mist and steam combination Caragana seed pests in flue gas, the efficient removal after demister, the combined dust-eliminating defogging effect of demister can be effectively improved, significantly reduces the content of total solid particulate matter in the exiting flue gas of absorption tower.
Description
Technical field
It the utility model is related to wet method fume desulfurizing system, and in particular to a kind of wet process of FGD phase transformation coalescence dedusting removes
Mist device.
Technical background
Fired power generating unit minimum discharge requires that smoke dust discharge concentration is no more than 5mg/m3, a kind of current main flow modification scheme be except
Dirt device+wet desulphurization collaboration dedusting.Deduster is main dust Control facility, remaining a small amount of in flue gas after the processing of removing dust device
Dust size it is smaller, while wet-method desulfurized fume can carry part containing solid-liquid drip, so wet desulphurization device need to use compared with
Big slurries spray flux and coverage rate, set and flow the measure such as component and multi-stage, efficient demister in tower to can be only achieved dust ultralow
Emission request, it is higher to thereby result in wet desulphurization device energy consumption, and investment is larger.
Promote the mechanism of fine particle condensation growth according to steam phase transforming, by steam phase transforming technology and wet process of FGD
Technology is combined the discharge that also can effectively control subparticle in flue gas.But this method usually requires to fill in smoke-gas wet desulfurization
Middle increase smoke moisture regulation room and phase transformation condensing chamber are put, and steam consumption quantity is larger, equipment investment and operation energy consumption are higher.
The content of the invention
The purpose of this utility model is to provide a kind of wet process of FGD phase transformation coalescence dedusting defogging method and device, filled
Divide and utilize existing wet desulphurization device, saturation wet flue gas is cooled down by a kind of pipe grating heat exchanger, condense its phase transformation and separate out water
Vapour, using fine dust and droplet as core Caragana seed pests, removed by high efficiency demister.
To achieve the above objectives, the utility model adopts the following technical scheme that：
A kind of wet process of FGD phase transformation coalescence dedusting defogging method and device, including it is arranged on absorption tower gas approach 1
The spraying layer 2 on top, set gradually the top of spraying layer 2 through pipe grating cooler 4 and demister 5, the pipe grating cooler 4
With cooler flooding nozzle 8 and mist eliminator flushing nozzle 6, the cooling water of pipe grating cooler 4 are respectively arranged with demister 5
Recirculating cooling water system is derived from by cooling circulating water pump 3.
Untreated flue gas enters absorption tower by absorption tower gas approach 1, and SO is removed after the atomization washing of spraying layer 22With it is big
Part dust, flue gas supersaturation after the cooling of pipe grating cooler 4 separate out steam, do not wash the fine dust of removing in flue gas
Grain and the micro-atomizing droplet of entrainment are with steam combination Caragana seed pests, the efficient removal after demister 5.
The utility model can effectively improve the combined dust-eliminating effect of wet desulphurization device, significantly reduce absorption tower exiting flue gas
The content of middle total solid particulate matter, and simple system, repair and maintenance is convenient, and investment is small, and operating cost is low.
Brief description of the drawings
Fig. 1 is a kind of structural representation of wet process of FGD phase transformation coalescence dedusting demister of the utility model.
Fig. 2 is pipe grating cooler A-A to structural representation.
Embodiment
As depicted in figs. 1 and 2, a kind of wet process of FGD phase transformation coalescence dedusting demister, including it is arranged on absorption tower
The spraying layer 2 on the top of gas approach 1, set gradually the top of spraying layer 2 through pipe grating cooler 4 and demister 5, the pipe grid
Cooler flooding nozzle 8 and mist eliminator flushing nozzle 6, the pipe grating cooling are respectively arranged with formula cooler 4 and demister 5
The cooling water of device 4 is derived from recirculating cooling water system by cooling circulating water pump 3.
Operation principle of the present utility model is：Untreated flue gas enters absorption tower by absorption tower gas approach 1, through spraying layer
SO is removed after 2 atomization washings2With most of dust, flue gas supersaturation after the cooling of pipe grating cooler 4 separates out steam, in flue gas
The fine dust particle of removing and the micro-atomizing droplet and steam combination Caragana seed pests of entrainment are not washed, it is high after demister 5
Effect removing.
Claims (2)
- A kind of 1. wet process of FGD phase transformation coalescence dedusting demister, it is characterised in that：Including being arranged on absorption tower entrance cigarette The spraying layer (2) on road (1) top, the pipe grating cooler (4) and demister (5) on spraying layer (2) top are successively set on, it is described Cooler flooding nozzle (8) and mist eliminator flushing nozzle (6), institute are respectively arranged with pipe grating cooler (4) and demister (5) State pipe grating cooler (4) cooling water and recirculating cooling water system is derived from by cooling circulating water pump (3).
- A kind of 2. wet process of FGD phase transformation coalescence dedusting demister according to claim 1, it is characterised in that：If remove Day with fog (5) is multi-stage demister, then deployment tube grating cooler (4) or selective deployment tube before the demister (5) of every one-level Grating cooler (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426636.1U CN206730770U (en) | 2017-04-21 | 2017-04-21 | A kind of wet process of FGD phase transformation coalescence dedusting demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426636.1U CN206730770U (en) | 2017-04-21 | 2017-04-21 | A kind of wet process of FGD phase transformation coalescence dedusting demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206730770U true CN206730770U (en) | 2017-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426636.1U Active CN206730770U (en) | 2017-04-21 | 2017-04-21 | A kind of wet process of FGD phase transformation coalescence dedusting demister |
Country Status (1)
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| CN (1) | CN206730770U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380033A (en) * | 2018-04-25 | 2018-08-10 | 福建鑫泽环保设备工程有限公司 | Flue gas desulfurization condensation dedusting takes off white integral system and its application method |
| CN112999816A (en) * | 2021-03-23 | 2021-06-22 | 攀钢集团西昌钢钒有限公司 | Wet flue gas desulfurization dust removal defogging device |
| CN115090090A (en) * | 2022-07-22 | 2022-09-23 | 中国华电科工集团有限公司 | Dust removal desulfurization absorption system and dust removal desulfurization absorption process |
| CN118304754A (en) * | 2024-06-06 | 2024-07-09 | 德梅斯特(上海)环保科技有限公司 | Desulfurization condensation synergy device adopting multistage structure |
-
2017
- 2017-04-21 CN CN201720426636.1U patent/CN206730770U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380033A (en) * | 2018-04-25 | 2018-08-10 | 福建鑫泽环保设备工程有限公司 | Flue gas desulfurization condensation dedusting takes off white integral system and its application method |
| CN112999816A (en) * | 2021-03-23 | 2021-06-22 | 攀钢集团西昌钢钒有限公司 | Wet flue gas desulfurization dust removal defogging device |
| CN115090090A (en) * | 2022-07-22 | 2022-09-23 | 中国华电科工集团有限公司 | Dust removal desulfurization absorption system and dust removal desulfurization absorption process |
| CN118304754A (en) * | 2024-06-06 | 2024-07-09 | 德梅斯特(上海)环保科技有限公司 | Desulfurization condensation synergy device adopting multistage structure |
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