CN112264188A - Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears - Google Patents
Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears Download PDFInfo
- Publication number
- CN112264188A CN112264188A CN202011304055.3A CN202011304055A CN112264188A CN 112264188 A CN112264188 A CN 112264188A CN 202011304055 A CN202011304055 A CN 202011304055A CN 112264188 A CN112264188 A CN 112264188A
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- China
- Prior art keywords
- wet
- electric precipitator
- power plant
- fired power
- coal
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- 239000012717 electrostatic precipitator Substances 0.000 title claims description 8
- 239000003245 coal Substances 0.000 title claims description 3
- 238000009833 condensation Methods 0.000 claims abstract description 35
- 230000005494 condensation Effects 0.000 claims abstract description 35
- 239000012716 precipitator Substances 0.000 claims abstract description 27
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 230000008030 elimination Effects 0.000 claims abstract description 8
- 238000003379 elimination reaction Methods 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 4
- 230000002087 whitening effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 23
- 239000007788 liquid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000011552 falling film Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
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- 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
-
- 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
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a reinforced white elimination system based on a wet-type electric precipitator of a coal-fired power plant, which comprises a vertical honeycomb-shaped wet-type electric precipitator body, a condensation pipe and an external cooling water tank, wherein a condensation anode plate is arranged in the vertical honeycomb-shaped wet-type electric precipitator body, the condensation anode plate is of a hollow structure, the condensation pipe is inserted into the condensation anode plate, an outlet of the external cooling water tank is communicated with an inlet of the condensation pipe, and an inlet of the external cooling water tank is communicated with an outlet of the condensation pipe.
Description
Technical Field
The invention belongs to the field of energy conservation and environmental protection, and relates to a heat exchange enhancement and white elimination system based on a wet electric precipitator of a coal-fired power plant.
Background
In recent years, on the basis of ultralow emission of atmospheric pollutants in a thermal power plant, various places have put forward more requirements on the emission of flue gas in the thermal power plant, and Shanghai, Tianjin, Zhejiang, Hebei and the like have put forward control requirements on wet smoke plume generated by smoke discharge.
The white rain is mainly because the smoke is pure in a large amount of water vapor, and the wet electric dust collector can collect water drops in the smoke to a certain extent, but the water drops must be in a liquid state. And thus cannot eliminate the water vapor in the flue gas to a certain extent.
At present, mainstream technologies for controlling the wet smoke plume, such as a heating method, a condensation reheating method and a hot air mixing method, need to input heat into discharged smoke, so that the energy consumption of a power plant is increased, the power generation efficiency is reduced, and the economic benefit of the power plant is greatly influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a reinforced white elimination system of a wet electric precipitator based on a coal-fired power plant, which can avoid the phenomenon of white smoke and rain, improve the operation effect of the precipitator and reduce the energy consumption of the power plant.
In order to achieve the purpose, the enhanced white elimination system based on the wet electric precipitator of the coal-fired power plant comprises a vertical honeycomb wet electric precipitator body, a condenser pipe and an external cooling water tank, wherein a condensation anode plate is arranged in the vertical honeycomb wet electric precipitator body, the condensation anode plate is of a hollow structure, the condenser pipe is inserted into the condensation anode plate, an outlet of the external cooling water tank is communicated with an inlet of the condenser pipe, and an inlet of the external cooling water tank is communicated with an outlet of the condenser pipe.
The outlet of the external cooling water tank is communicated with the inlet of the condensation pipe through a circulating water pump.
The circulating water pump is communicated with the external cooling water tank through a connecting pipeline.
Still include high voltage power supply, this internal still be provided with of vertical honeycomb wet-type electrostatic precipitator with condensation anode plate matched with negative pole line, wherein, condensation anode plate ground connection, negative pole line are connected with high voltage power supply.
The inlet of the vertical honeycomb wet-type electric dust collector body is provided with an air inlet smoke box and a flow equalizing device, and the outlet of the vertical honeycomb wet-type electric dust collector body is provided with an air outlet smoke box.
The bottom opening part of the vertical honeycomb wet-type electric dust collector body is provided with an ash bucket.
The vertical honeycomb wet-type electric dust remover is internally provided with a wet-type electric dust remover cleaning system.
The top of the vertical honeycomb wet-type electric dust collector body is provided with an insulating suspension system.
The invention has the following beneficial effects:
when the enhanced white smoke elimination system based on the wet-type electric precipitator of the coal-fired power plant is specifically operated, a low-temperature region is formed on the condensation anode plate by utilizing the cooling liquid and the condensation pipe, saturated vapor in smoke is cooled after contacting the condensation anode plate and is condensed into liquid drops through phase change, liquid flowing in a falling film is formed on the condensation anode plate, the falling film liquid forms falling film self-flowing on the wall surface of the condensation anode plate, the effect of cleaning the condensation anode plate is achieved, meanwhile, the vapor in the smoke is further filtered, the vapor discharged from a chimney is reduced, the effect of eliminating the white smoke of the chimney is achieved, and meanwhile, the energy consumption of the power plant is low.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is vertical honeycomb wet-type electrostatic precipitator body, 11 is the flue gas box that admits air, 12 is condensation anode plate, 13 is flow straightener, 14 is wet-type electrostatic precipitator cleaning system, 15 is insulating suspension system, 16 is high voltage power supply, 17 is the negative pole line, 18 is the flue gas box that gives vent to anger, 19 is grey water bucket, 2 is the connecting line, 3 is external cooling water tank, 4 is circulating water pump, 5 is the connecting line.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the enhanced whitening system for the wet electric precipitator based on the coal-fired power plant comprises a vertical honeycomb wet electric precipitator body 1, a condenser pipe and an external cooling water tank 3, wherein a condensation anode plate 12 is arranged in the vertical honeycomb wet electric precipitator body 1, the condensation anode plate 12 is of a hollow structure, the condenser pipe is inserted into the condensation anode plate 12, an outlet of the external cooling water tank 3 is communicated with an inlet of the condenser pipe, an inlet of the external cooling water tank 3 is communicated with an outlet of the condenser pipe, an outlet of the external cooling water tank 3 is communicated with an inlet of the condenser pipe through a circulating water pump 4, and the circulating water pump 4 is communicated with the external cooling water tank 3 through a connecting pipeline 2.
The vertical honeycomb wet-type electric dust collector also comprises a high-voltage power supply 16, and a cathode wire 17 matched with the condensation anode plate 12 is further arranged in the vertical honeycomb wet-type electric dust collector body 1, wherein the condensation anode plate 12 is grounded, and the cathode wire 17 is connected with the high-voltage power supply 16; an inlet smoke box 11 and a flow equalizing device 13 are arranged at the inlet of the vertical honeycomb wet-type electric dust collector body 1, and an outlet smoke box 18 is arranged at the outlet of the vertical honeycomb wet-type electric dust collector body 1; an ash water bucket 19 is arranged at the bottom opening of the vertical honeycomb wet-type electric dust collector body 1; a wet-type electric dust collector cleaning system 14 is arranged in the vertical honeycomb-shaped wet-type electric dust collector body 1; the top of the vertical honeycomb wet-type electric dust collector body 1 is provided with an insulating suspension system 15.
The specific working process of the invention is as follows:
condensate enters the condenser pipe through the circulating water pump 4, the condensing anode plate 12 is cooled through a heat exchange mode, and then the condensate enters the external cooling water tank 3, the temperature of the condensing anode plate 12 is reduced, saturated vapor in smoke is cooled after contacting the condensing anode plate 12, phase change condensation is carried out to form liquid drops, liquid flowing in an upper falling film of the condensing anode plate 12 is formed, the flowing liquid flowing in the falling film forms falling film self-flowing on the wall surface of the condensing anode plate 12, the effect of cleaning the condensing anode plate 12 is achieved, meanwhile, the vapor in the smoke is further filtered, the water vapor discharged by a chimney is reduced, and white smoke in the chimney can be further eliminated. In actual operation, the temperature drop range of the condensing anode plate 12 can be controlled by controlling the flow of the circulating water pump 4 and the heat dissipation capacity of the external cooling water tank 3, so that a proper operation effect is achieved.
It should be noted that the surface of the condensing anode plate 12 forms a stable falling film flow, which can ensure the dust removal effect of the wet electric dust remover and further improve the dust collection efficiency of the wet electric dust remover. The surface of the condensing anode plate 12 forms a low-temperature interval, a temperature gradient is formed in a honeycomb channel of the wet electric dust collector, namely, the temperature of the flue gas entering the electric field area is reduced, and liquid drops are separated out after the temperature of the saturated wet flue gas is reduced. A key condition that water vapor is condensed into liquid drops in air to generate phase change is that condensation nuclei are arranged in the air, particulate matters in smoke are the condensation nuclei meeting the condition, and the smaller the particulate matters are, the better the liquid drop forming effect is. Therefore, the fine particles are wrapped by the water drops and move to the condensing anode plate 12 under the action of the electric field and are collected by the wet electric dust collector, and the dust collecting efficiency of the wet electric dust collector is further improved.
Claims (8)
1. The utility model provides a white system that disappears is reinforceed based on coal fired power plant's wet-type electrostatic precipitator, a serial communication port, including vertical honeycomb wet-type electrostatic precipitator body (1), condenser pipe and external cooling water tank (3), be provided with condensation anode plate (12) in vertical honeycomb wet-type electrostatic precipitator body (1), wherein, condensation anode plate (12) are hollow structure, the condenser pipe inserts in condensation anode plate (12), the export of external cooling water tank (3) is linked together with the entry of condenser pipe, the entry of external cooling water tank (3) is linked together with the export of condenser pipe.
2. The enhanced white goods removal system of the wet electric precipitator based on the coal-fired power plant as claimed in claim 1, wherein an outlet of the external cooling water tank (3) is communicated with an inlet of the condensation pipe through a circulating water pump (4).
3. The coal-fired power plant-based wet electric precipitator enhanced white elimination system of claim 1, wherein the circulating water pump (4) is communicated with the external cooling water tank (3) through the connecting pipeline (2).
4. The coal-fired power plant-based wet electric precipitator enhanced white elimination system of claim 1, further comprising a high voltage power supply (16), wherein a cathode wire (17) matched with the condensation anode plate (12) is further arranged in the vertical honeycomb wet electric precipitator body (1), the condensation anode plate (12) is grounded, and the cathode wire (17) is connected with the high voltage power supply (16).
5. The enhanced white goods removal system of the wet type electric precipitator based on the coal-fired power plant as claimed in claim 1, wherein an inlet smoke box (11) and a flow equalizing device (13) are arranged at an inlet of the vertical type honeycomb type wet type electric precipitator body (1), and an outlet smoke box (18) is arranged at an outlet of the vertical type honeycomb type wet type electric precipitator body (1).
6. The coal-fired power plant-based wet electric precipitator reinforced whitening reduction system of claim 1, wherein an ash water bucket (19) is arranged at the bottom opening of the vertical honeycomb wet electric precipitator body (1).
7. The coal-fired power plant-based wet electric precipitator enhanced whitening reduction system of claim 1, wherein a wet electric precipitator cleaning system (14) is arranged in the vertical honeycomb wet electric precipitator body (1).
8. The enhanced white elimination system of the wet electric precipitator based on the coal-fired power plant as claimed in claim 1, wherein the top of the vertical honeycomb wet electric precipitator body (1) is provided with an insulating suspension system (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304055.3A CN112264188A (en) | 2020-11-19 | 2020-11-19 | Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304055.3A CN112264188A (en) | 2020-11-19 | 2020-11-19 | Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112264188A true CN112264188A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011304055.3A Pending CN112264188A (en) | 2020-11-19 | 2020-11-19 | Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112264188A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558696A (en) * | 2022-04-29 | 2022-05-31 | 汕头市恒建科创生物质发电有限公司 | Flue gas desulfurization, denitrification and dedusting purification device and purification method thereof for household garbage incinerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437068A (en) * | 2014-11-11 | 2015-03-25 | 南京中电环保科技有限公司 | Efficient wet desulfurization dust removal system and method |
| CN205435352U (en) * | 2016-03-30 | 2016-08-10 | 国电科学技术研究院 | Phase transition coalescence lotus electricity integration flue gas deep purification system |
| CN106621680A (en) * | 2016-11-22 | 2017-05-10 | 凯天环保科技股份有限公司 | Method and system for deeply removing dust from flue gas after wet desulfurization |
| CN107321124A (en) * | 2017-05-08 | 2017-11-07 | 浙江大学 | The regulation and control of coal-burning power plant's energy-saving dedusting synergy cooperative intelligentization remove white system and method |
| CN207238264U (en) * | 2017-11-09 | 2018-04-17 | 浙江浩普环保工程有限公司 | One kind condensation reheat-type wet static dedusting system |
| CN110354998A (en) * | 2019-07-19 | 2019-10-22 | 福建龙净环保股份有限公司 | Water-saving wet electrical dust precipitator and its anode system, heat exchange anode plate |
| CN213855090U (en) * | 2020-11-19 | 2021-08-03 | 西安西热锅炉环保工程有限公司 | Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears |
-
2020
- 2020-11-19 CN CN202011304055.3A patent/CN112264188A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437068A (en) * | 2014-11-11 | 2015-03-25 | 南京中电环保科技有限公司 | Efficient wet desulfurization dust removal system and method |
| CN205435352U (en) * | 2016-03-30 | 2016-08-10 | 国电科学技术研究院 | Phase transition coalescence lotus electricity integration flue gas deep purification system |
| CN106621680A (en) * | 2016-11-22 | 2017-05-10 | 凯天环保科技股份有限公司 | Method and system for deeply removing dust from flue gas after wet desulfurization |
| CN107321124A (en) * | 2017-05-08 | 2017-11-07 | 浙江大学 | The regulation and control of coal-burning power plant's energy-saving dedusting synergy cooperative intelligentization remove white system and method |
| CN207238264U (en) * | 2017-11-09 | 2018-04-17 | 浙江浩普环保工程有限公司 | One kind condensation reheat-type wet static dedusting system |
| CN110354998A (en) * | 2019-07-19 | 2019-10-22 | 福建龙净环保股份有限公司 | Water-saving wet electrical dust precipitator and its anode system, heat exchange anode plate |
| CN213855090U (en) * | 2020-11-19 | 2021-08-03 | 西安西热锅炉环保工程有限公司 | Based on coal fired power plant wet-type electrostatic precipitator reinforces white system that disappears |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558696A (en) * | 2022-04-29 | 2022-05-31 | 汕头市恒建科创生物质发电有限公司 | Flue gas desulfurization, denitrification and dedusting purification device and purification method thereof for household garbage incinerator |
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