CN117339762A - Wet electrostatic precipitator that long period was maintained - Google Patents
Wet electrostatic precipitator that long period was maintained Download PDFInfo
- Publication number
- CN117339762A CN117339762A CN202311647868.6A CN202311647868A CN117339762A CN 117339762 A CN117339762 A CN 117339762A CN 202311647868 A CN202311647868 A CN 202311647868A CN 117339762 A CN117339762 A CN 117339762A
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- Prior art keywords
- water
- cylinder
- polymer
- film
- water curtain
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- 239000012719 wet electrostatic precipitator Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 364
- 229920000642 polymer Polymers 0.000 claims abstract description 88
- 238000011010 flushing procedure Methods 0.000 claims abstract description 72
- 239000000779 smoke Substances 0.000 claims abstract description 68
- 239000000428 dust Substances 0.000 claims abstract description 49
- 238000012423 maintenance Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 19
- 238000000746 purification Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000007774 longterm Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000012717 electrostatic precipitator Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 239000007789 gas Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 238000001914 filtration Methods 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention relates to the technical field of electrostatic precipitators, in particular to a wet electrostatic precipitator for long-period maintenance, which comprises a cylinder and two electrode plates; the water curtain system comprises a water curtain cylinder, a water collecting tank, a polymer one-way film II and a flushing system, wherein the water curtain cylinder is concentrically arranged in a purifying chamber of a cylinder body, the side wall of the water curtain cylinder is a polymer one-way film I, the water collecting tank is arranged on a smoke inlet of the cylinder body, a coaming of the water collecting tank stretches into an opening of the water curtain cylinder, the polymer one-way film II is arranged on a discharge opening of the cylinder body, the flushing system sprays water to the inner side of the polymer one-way film I of the water curtain cylinder to form a water film, flushing water overflows the lower end of the side wall of the water curtain cylinder, the flushing system recovers the flushing water, and the flushing system recovers water vapor between the water curtain cylinder and the polymer one-way film II; the device can recover water vapor to reduce water resource waste, and performs two-stage electrostatic dust removal on smoke dust through the polymer unidirectional film matched with the electrode plate, so as to adapt to fluctuation of smoke flow.
Description
Technical Field
The invention relates to the technical field of electrostatic precipitators, in particular to a wet electrostatic precipitator for long-period maintenance.
Background
The wet electrostatic precipitator uses water spray or overflow water to form a layer of water film on the surface of the dust collecting electrode, so as to realize the dust removal of the polar plate. The wet ash removal can avoid the re-flying of the precipitated dust, and achieves high dust removal efficiency.
The chinese application of application number CN202210327747.2 in the prior art proposes a wet electrostatic precipitator for waste gas treatment, the airflow of the wet electrostatic precipitator passes through an adsorption belt and contacts with the surface of the adsorption belt, the adsorption belt dips in water under the driving action of a driving device to keep a wet state, the water on the surface of the adsorption belt captures and adsorbs dust particles in the waste gas more easily, and dissolves water-soluble pollutant gas and water-soluble corrosive gas, after the dust pre-removal treatment of the adsorption belt, the content of the dust and other particles in the waste gas entering the wet electrostatic precipitator body, the content of the water-soluble corrosive gas and the content of the water-soluble pollutant gas are reduced to a great extent, and the waste gas is pre-dedusted and purified by the dust pre-removal device.
In the actual dust removal process, high-temperature flue gas can heat a water film in the wet electrostatic dust collector to generate more water vapor, but the wet electrostatic dust collector does not specially treat the water vapor, the water vapor is generally discharged along with purified air, so that water resource waste is caused, the purification effect of the conventional wet electrostatic dust collector is improved only by the flow guiding effect of the flow guiding plate assembly on the mode of prolonging the electrostatic dust collection time of the flue gas, and a part of flue gas is discharged untreated under the condition of large fluctuation of the flue gas flow.
Disclosure of Invention
In order to solve the technical problems, the invention provides the wet electrostatic precipitator which can recycle water vapor and reduce water resource waste, performs two-stage electrostatic dust removal on smoke dust through the polymer unidirectional film matched with the electrode plates and adapts to long-period maintenance of fluctuation of smoke flow.
The invention relates to a wet electrostatic precipitator for long-period maintenance, which comprises a barrel and two electrode plates, wherein a purifying chamber is arranged in the barrel, a smoke inlet is arranged at the lower end of the barrel, a discharge outlet is arranged at the upper end of the barrel, the two electrode plates are oppositely arranged at two sides of the purifying chamber of the barrel, and the electrode plates are respectively an anode plate and a negative plate; the water curtain cylinder is cylindrical, the upper end of the water curtain cylinder is provided with a sealing plate, the lower end of the water curtain cylinder is provided with an opening, the water curtain cylinder is concentrically arranged in a purifying cavity of the cylinder, the opening of the water curtain cylinder is concentrically aligned with a smoke inlet of the cylinder, the side wall of the water curtain cylinder is provided with a polymer one-way film I, the polymer one-way film I is provided with micropores for intercepting smoke dust and passing water vapor, a water collecting groove is arranged on the smoke inlet of the cylinder, the middle part of the water collecting groove is provided with a coaming, the coaming stretches into the opening of the water curtain cylinder, the middle part of the water collecting groove is provided with a through hole, the polymer one-way film II is arranged on a discharge port of the cylinder, the polymer one-way film II is provided with micropores for air to pass through and intercept water vapor, the flushing system sprays flushing water to the inner side of the polymer one-way film I of the water curtain cylinder, the flushing water forms a water film, the flushing water flows through the lower end of the side wall of the water curtain cylinder, the flushing system recovers the flushing water, and the flushing system recovers the water vapor between the water curtain cylinder and the polymer one-way film II; when the device works, the two electrode plates are electrified to enable an electric field to be formed in the purification chamber of the cylinder, the flushing system sprays water to the inner side wall of the polymer one-way film I of the water curtain cylinder to form a water film flowing to the water collecting tank, flushing water flows through the lower end of the side wall of the water curtain cylinder after the flushing water gathers on the water collecting tank, the water curtain cylinder separates the purification chamber of the cylinder into an inner part and an outer part, smoke enters the space surrounded by the polymer one-way film I of the water curtain cylinder through the through holes of the water collecting tank, smoke in the smoke is attracted to the side wall of the water curtain cylinder by the two electrode plates after being ionized and negatively charged, after the smoke contacts with the water film, the smoke is adsorbed by the water film and enters the flushing system along with the water film, the heat of the smoke heats and evaporates the water film to form water vapor, the water vapor and air pass through the micropores of the polymer one-way film I of the water curtain cylinder to enter the outside of the purification chamber of the cylinder, the polymer one-way film II intercepts the water vapor and a small amount of smoke in the mixed gas, the small amount of smoke is absorbed again by the two electrode plates, the water vapor gathered between the water curtain cylinder and the polymer one-way film II is discharged and recovered, water vapor in the space is reduced, smoke waste in the smoke and dust is removed, and smoke waste is removed, and smoke dust is removed, and dust is removed, and the smoke dust and dust is accordingly the dust and dust is removed.
Preferably, the device also comprises a liquid level sensor, wherein the liquid level sensor is arranged on the water collecting tank; the liquid level sensor detects the liquid level of the flushing water on the water collecting tank, when the liquid level is reduced to a first set value, the flushing system is powered up, and when the liquid level is reduced to a second set value, the flushing system is powered down, so that the flushing water on the water collecting tank keeps a state of overflowing the lower end of the side wall of the water curtain cylinder, and the water film sealing effect is improved.
Preferably, the flushing system comprises a filter tank, a filter plate, a water pump, a water supply pipe, a water distribution ring, a plurality of nozzles and an air exhaust component, wherein the filter tank is arranged below the water collecting tank, the filter plate is arranged in the filter tank, the filter plate divides the interior of the filter tank into a left part and a right part, the right part of the filter tank is communicated with the water collecting tank, the water pump is arranged on the filter tank, the water suction pipe of the water pump stretches into the left part of the filter tank, the lower end of the water supply pipe is connected with the water outlet of the water pump, the upper end of the water supply pipe is communicated with the water distribution ring, the water distribution ring is positioned at the upper end of the interior of the water curtain cylinder, the plurality of nozzles are uniformly arranged on the water distribution ring and respectively face the upper end of the inner side wall of the water curtain cylinder, the input end of the air exhaust component stretches into the space between the water curtain cylinder and the cylinder, and the output end of the air exhaust component stretches into the left part of the filter tank and faces the filter plate; the filter tank is filled with flushing water, the accumulated flushing water in the water collecting tank flows into the right part of the filter tank, the filter plate filters the flushing water, the water pump pumps the filtered flushing water out and inputs the filtered flushing water into the water distribution ring through the water supply pipe, the nozzles uniformly spray the flushing water onto the side wall of the water curtain cylinder, the inner side of the polymer one-way film I of the water curtain cylinder forms a water film flowing downwards, the water film is accumulated on the water collecting tank, so that the flushing water is recycled, after a large amount of water vapor is accumulated between the water curtain cylinder and the polymer one-way film II, the air pumping assembly pumps the water vapor out and backflushes the filter plate, the filter plate recovers the filtering effect, and the filter plate has good practicability.
Preferably, the device also comprises a shaft tube, a rotary joint and a bearing seat, wherein the upper end of the shaft tube is connected with the upper end of the water supply tube through the rotary joint, the shaft tube is rotatably arranged on the water curtain tube through the bearing seat, the lower end of the shaft tube is connected with the water distribution ring, and a plurality of nozzles are obliquely arranged; when a plurality of nozzles spray water, the water mist generates backflushing, so that the water distribution ring rotates, the bearing seat rotates and supports the shaft tube, the rotary joint enables the shaft tube to be connected with the shaft tube through the water supply pipe in the rotating process, the water distribution ring drives the plurality of nozzles to rotate, the water film is more uniform, and the effect of absorbing smoke dust by the water film is improved.
Preferably, the device also comprises a plurality of scrapers, wherein the upper ends of the scrapers are connected with the water distribution ring, and the scrapers scrape the inner side wall of the polymer unidirectional film I of the water curtain cylinder; when the water distribution ring rotates, the plurality of scraping plates are driven to scrape the inner side wall of the polymer unidirectional film I of the water curtain cylinder, dust in the water film is pushed to the water collecting tank, dust accumulation is avoided, and the maintenance period is prolonged.
Preferably, the air extraction assembly comprises a three-way valve, a jet pipe, a jet pump, a back flushing pipe and an air suction pipe, wherein the three-way valve is arranged in the water feeding pipe through a main channel and a secondary channel, the upper end of the jet pipe is connected with the other secondary channel of the three-way valve, the lower end of the jet pipe is connected with the inlet of the jet pump, the upper end of the back flushing pipe is connected with the outlet of the jet pump, the lower end of the back flushing pipe stretches into the left part of the filter box and faces the filter plate, one end of the air suction pipe stretches into the space between the water curtain cylinder and the second polymer unidirectional film, and the other end of the air suction pipe is connected with the air suction interface of the jet pump; after vapor between the water curtain cylinder and the polymer one-way film II is gathered to a certain pressure, the three-way valve adjusts flushing water pumped by the water pump to be conveyed to the jet pump through the jet pipe, so that the jet pump can pump the vapor between the water curtain cylinder and the polymer one-way film II through the air suction pipe, jet the vapor into the left part of the filter box through the backflushing pipe and backflush the filter plate, the filter plate recovers the filtering effect, the working efficiency is improved, the vapor is recovered, and the purpose of long-period maintenance is realized.
Preferably, the air conditioner further comprises a radiating fin, wherein the radiating fin is arranged on the air suction pipe; the heat dissipation effect of the air suction pipe is enhanced through the heat dissipation fins, and the condensation of water vapor is accelerated.
Preferably, the device also comprises a mounting frame, wherein the polymer one-way film II is arranged on the discharge port of the cylinder body through the mounting frame, and the polymer one-way film II is in an inverted cone shape; the installation frame supports the polymer one-way film II, so that the polymer one-way film II is more stable, the inverted conical polymer one-way film II has certain expansion capacity, and when the flue gas flow is large, the polymer one-way film expands upwards, can accommodate more gases, and has better adaptability.
Preferably, the device also comprises a push plate, a spring and a bracket, wherein the push plate is arranged in the middle of the polymer unidirectional film II, the lower end of the spring is connected with the push plate, the upper end of the spring is connected with the bracket, and the bracket is arranged on the cylinder; when the flow of the smoke is reduced, the middle part of the second polymer unidirectional film is reset downwards by the elastic force of the spring through the push plate, and the adaptability of the equipment is restored.
Preferably, the device also comprises a contact sensor, wherein the contact sensor is arranged on the bracket, and the lower end probe of the contact sensor is spaced from the push plate; when the flow of the flue gas is large, the middle part of the polymer one-way film II expands upwards to enable the pushing plate to compress the spring, and when the pushing plate contacts with the contact sensor, the three-way valve adjusts flushing water pumped by the water pump to be conveyed to the jet pump through the jet pipe, so that automatic discharge and recovery of water vapor are realized.
Compared with the prior art, the invention has the beneficial effects that: when the device works, the two electrode plates are electrified to enable an electric field to be formed in the purification chamber of the cylinder, the flushing system sprays water to the inner side wall of the polymer one-way film I of the water curtain cylinder to form a water film flowing to the water collecting tank, flushing water flows through the lower end of the side wall of the water curtain cylinder after the flushing water gathers on the water collecting tank, the water curtain cylinder separates the purification chamber of the cylinder into an inner part and an outer part, smoke enters the space surrounded by the polymer one-way film I of the water curtain cylinder through the through holes of the water collecting tank, smoke in the smoke is attracted to the side wall of the water curtain cylinder by the two electrode plates after being ionized and negatively charged, after the smoke contacts with the water film, the smoke is adsorbed by the water film and enters the flushing system along with the water film, the heat of the smoke heats and evaporates the water film to form water vapor, the water vapor and air pass through the micropores of the polymer one-way film I of the water curtain cylinder to enter the outside of the purification chamber of the cylinder, the polymer one-way film II intercepts the water vapor and a small amount of smoke in the mixed gas, the small amount of smoke is absorbed again by the two electrode plates, the water vapor gathered between the water curtain cylinder and the polymer one-way film II is discharged and recovered, water vapor in the space is reduced, smoke waste in the smoke and dust is removed, and smoke waste is removed, and smoke dust is removed, and dust is removed, and the smoke dust and dust is accordingly the dust and dust is removed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of an isometric semi-cut-away structure of the present invention;
FIG. 3 is a schematic illustration of an axially measured structure of the present invention;
FIG. 4 is a schematic diagram of the structure of the electrode plate, the water curtain cylinder, the water collecting tank and the liquid level sensor;
FIG. 5 is a schematic structural view of the irrigation system;
FIG. 6 is a schematic view of the structure of the water supply pipe, the water distribution ring, the nozzle, the shaft pipe, the rotary joint, the bearing seat, the scraper and the like;
fig. 7 is a schematic structural view of the structures of the polymer unidirectional film II, the mounting frame, the push plate, the spring, the bracket, the contact sensor and the like.
The reference numerals in the drawings: 1. a cylinder; 2. an electrode plate; 3. a water curtain cylinder; 4. a water collecting tank; 5. a polymer unidirectional film II; 6. a liquid level sensor; 7. a filter box; 8. a filter plate; 9. a water pump; 10. a water supply pipe; 11. a water distribution ring; 12. a nozzle; 13. a shaft tube; 14. a rotary joint; 15. a bearing seat; 16. a scraper; 17. a three-way valve; 18. a jet pipe; 19. a jet pump; 20. a backwash tube; 21. an air suction pipe; 22. a heat sink; 23. a mounting frame; 24. a push plate; 25. a spring; 26. a bracket; 27. a touch sensor.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. This invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
As shown in fig. 1, 2, 3 and 4, a wet electrostatic precipitator for long-period maintenance comprises a barrel 1 and two electrode plates 2, wherein a purification chamber is arranged in the barrel 1, a smoke inlet is arranged at the lower end of the barrel 1, a discharge outlet is arranged at the upper end of the barrel 1, the two electrode plates 2 are oppositely arranged at two sides of the purification chamber of the barrel 1, and the electrode plates 2 are respectively an anode plate and a cathode plate; the water curtain system comprises a water curtain cylinder 3, a water collecting tank 4, a polymer one-way film II and a flushing system, wherein the water curtain cylinder 3 is cylindrical, a sealing plate is arranged at the upper end of the water curtain cylinder 3, an opening is arranged at the lower end of the water curtain cylinder 3, the water curtain cylinder 3 is concentrically arranged in a purifying cavity of the cylinder 1, the opening of the water curtain cylinder 3 is concentrically aligned with a smoke inlet of the cylinder 1, the side wall of the water curtain cylinder 3 is a polymer one-way film I, the polymer one-way film I is provided with micropores for intercepting smoke dust and passing through water vapor, the water collecting tank 4 is arranged on the smoke inlet of the cylinder 1, a coaming plate is arranged at the middle part of the water collecting tank 4 and extends into the opening of the water curtain cylinder 3, a through hole is arranged at the middle part of the water collecting tank 4, the polymer one-way film II 5 is arranged on a discharge port of the cylinder 1, flushing water is sprayed into the inner side of the polymer one-way film I of the water curtain cylinder 3, flushing water forms a water film, and the flushing water overflows the lower side wall of the water curtain cylinder 3, and the flushing system recovers the water vapor between the water curtain 3 and the polymer one-way film II is recovered; also comprises a liquid level sensor 6, and the liquid level sensor 6 is arranged on the water collecting tank 4.
When the device works, the two electrode plates 2 are electrified to form an electric field in the purifying chamber of the cylinder body 1, the flushing system sprays water to the inner side wall of the polymer unidirectional film I of the water curtain cylinder 3 to form a water film flowing to the water collecting tank 4, after flushing water is collected on the water collecting tank 4, the liquid level sensor 6 detects the liquid level height of flushing water on the water collecting tank 4, when the liquid level is reduced to a first set value, the flushing system increases power, when the liquid level is reduced to a second set value, the flushing system reduces power, so that the flushing water on the water collecting tank 4 keeps a state of overflowing the lower end of the side wall of the water curtain cylinder 3, the water curtain cylinder 3 separates the purifying chamber of the cylinder body 1 into an inner part and an outer part, and flue gas enters a space enclosed by the polymer unidirectional film I of the water curtain cylinder 3 through the through holes of the water collecting tank 4, smoke in the smoke is attracted to the side wall of the water curtain cylinder 3 by the two electrode plates 2 after being ionized and negatively charged, after the smoke contacts with the water film, the smoke is adsorbed by the water film and enters the flushing system along with the water film, heat of the smoke heats and evaporates the water film into water vapor, the water vapor and air pass through micropores of a polymer one-way film I of the water curtain cylinder 3 to enter the outside of a purifying cavity of the cylinder body 1, the polymer one-way film II 5 intercepts the water vapor and a small amount of smoke in mixed gas, a small amount of smoke is adsorbed by the two electrode plates 2 again, the flushing system discharges and recovers the water vapor gathered between the water curtain cylinder 3 and the polymer one-way film II 5, water resource waste is reduced, the smoke is subjected to two-stage electrostatic dust removal through the interception effect of the polymer one-way film on the smoke, and fluctuation of smoke flow is adapted.
Example 2
As shown in fig. 1, 5 and 6, on the basis of embodiment 1, the flushing system comprises a filter tank 7, a filter plate 8, a water pump 9, a water supply pipe 10, a water distribution ring 11, a plurality of nozzles 12 and an air extraction assembly, wherein the filter tank 7 is arranged below the water collecting tank 4, the filter plate 8 is arranged inside the filter tank 7, the filter plate 8 divides the inside of the filter tank 7 into a left part and a right part, the right part of the filter tank 7 is communicated with the water collecting tank 4, the water pump 9 is arranged on the filter tank 7, the water suction pipe of the water pump 9 extends into the left part of the filter tank 7, the lower end of the water supply pipe 10 is connected with the water outlet of the water pump 9, the upper end of the water supply pipe 10 is communicated with the water distribution ring 11, the water distribution ring 11 is positioned at the upper end of the inside of the water curtain cylinder 3, the plurality of nozzles 12 are uniformly arranged on the water distribution ring 11, the nozzles 12 are respectively uniformly oriented to the upper end of the inner side wall of the water curtain cylinder 3, the input end of the air extraction assembly extends into between the water curtain cylinder 3 and the cylinder 1, and the output end of the air extraction assembly extends into the left part of the filter tank 7 and is oriented to the filter plate 8; the water curtain tube 3 is rotatably arranged on the water curtain tube 3 through the bearing seat 15, the lower end of the shaft tube 13 is connected with the water distribution ring 11, and the nozzles 12 are obliquely arranged; the water curtain tube 3 also comprises a plurality of scrapers 16, wherein the upper ends of the scrapers 16 are connected with the water distribution ring 11, and the scrapers 16 scrape the inner side wall of the polymer unidirectional film I of the water curtain tube 3.
The filter tank 7 is filled with flushing water, the accumulated flushing water in the water collecting tank 4 flows into the right part of the filter tank 7, the filter plate 8 filters the flushing water, the water pump 9 pumps the filtered flushing water out and inputs the filtered flushing water into the water distribution ring 11 through the water supply pipe 10, the nozzles 12 uniformly spray the flushing water onto the side wall of the water curtain cylinder 3, when the nozzles 12 spray water, water mist generates backflushing, the water distribution ring 11 rotates, the bearing seat 15 rotatably supports the shaft pipe 13, the rotary joint 14 enables the shaft pipe 13 to be connected with the shaft pipe 13 in the rotating process, the water distribution ring 11 drives the nozzles 12 to rotate, the water film is enabled to be even, the scraping plates 16 are driven to scrape the inner side wall of the polymer one-way film I of the water curtain cylinder 3 when the water distribution ring 11 rotates, smoke dust in the water film is pushed to the water collecting tank 4, the smoke dust is prevented from accumulating on the water collecting tank 4, accordingly, the flushing water is formed to be recycled, and when a large amount of accumulated components between the water curtain cylinder 3 and the polymer one-way film II 5 are pumped out, the water film 8 is enabled to restore the water vapor filtering effect to the filter plate 8.
Example 3
As shown in fig. 1, 5 and 7, on the basis of embodiment 2, the air extraction assembly comprises a three-way valve 17, a jet pipe 18, a jet pump 19, a recoil pipe 20 and an air suction pipe 21, wherein the three-way valve 17 is arranged in an upper water pipe 10 through a main channel and a secondary channel, the upper end of the jet pipe 18 is connected with the other secondary channel of the three-way valve 17, the lower end of the jet pipe 18 is connected with an inlet of the jet pump 19, the upper end of the recoil pipe 20 is connected with an outlet of the jet pump 19, the lower end of the recoil pipe 20 extends into the left part of the filter box 7 and faces the filter plate 8, one end of the air suction pipe 21 extends into a space between the water curtain 3 and the polymer unidirectional film II 5, and the other end of the air suction pipe 21 is connected with an air suction interface of the jet pump 19; also includes the cooling fin 22, the cooling fin 22 is installed on air suction pipe 21; the device also comprises a mounting frame 23, wherein the second polymer unidirectional film 5 is arranged on the discharge port of the cylinder 1 through the mounting frame 23, and the second polymer unidirectional film 5 is in an inverted cone shape; the device also comprises a push plate 24, a spring 25 and a bracket 26, wherein the push plate 24 is arranged in the middle of the second polymer unidirectional film 5, the lower end of the spring 25 is connected with the push plate 24, the upper end of the spring 25 is connected with the bracket 26, and the bracket 26 is arranged on the cylinder 1; and a contact sensor 27 is also included, the contact sensor 27 is arranged on the bracket 26, and a lower end probe of the contact sensor 27 is spaced from the push plate 24.
When the smoke flow is large, the mounting frame 23 supports the polymer one-way film II 5, the polymer one-way film II 5 is more stable, the inverted cone-shaped polymer one-way film II 5 has a certain expansion capacity, when the smoke flow is large, the polymer one-way film II 5 expands upwards, more gas can be contained, the adaptability is better, after the water vapor between the water curtain cylinder 3 and the polymer one-way film II 5 gathers to a certain pressure, the middle part of the polymer one-way film II 5 expands upwards, the push plate 24 compresses the spring 25, when the push plate 24 contacts with the contact sensor 27, the three-way valve 17 adjusts the flushing water pumped by the water pump 9 to be conveyed to the jet pump 19 through the jet pipe 18, the jet pump 19 can pump the water vapor between the water curtain cylinder 3 and the polymer one-way film II 5 through the air suction pipe 21, the left part of the reverse flushing pipe 20 is sprayed into the filter box 7, the filter plate 8 is enabled to recover the filtering effect, the purpose of automatic discharging and recovering the water vapor is achieved, long-period maintenance is achieved, the heat dissipation effect of the air suction plate 22 is enhanced, the condensation of the water vapor is accelerated, the water vapor is reduced through the air suction plate 22, the heat dissipation effect of the water vapor is accelerated, and the elasticity of the water vapor is recovered through the elastic membrane 25 after the water suction plate 24 is recovered, and the middle part is enabled to be suitable for the equipment.
As shown in figures 1 to 7, in the wet electrostatic precipitator for long-period maintenance, when the wet electrostatic precipitator is in operation, firstly, two electrode plates 2 are electrified to form an electric field in a purifying chamber of a cylinder body 1, flushing water is filled in a filtering box 7, the accumulated flushing water in a water collecting tank 4 flows into the right part of the filtering box 7, a filtering plate 8 filters the flushing water, a water pump 9 pumps the filtered flushing water and inputs the filtered flushing water into a water distribution ring 11 through an upper water pipe 10, a plurality of nozzles 12 uniformly spray the flushing water onto the side wall of a water curtain cylinder 3, a water film flowing downwards is formed on the inner side of a polymer unidirectional film I of the water curtain cylinder 3, the water film is accumulated on the water collecting tank 4, the flushing water flows over the lower end of the side wall of the water curtain cylinder 3, a liquid level sensor 6 detects the liquid level, and then smoke enters a space enclosed by the polymer unidirectional film of the water curtain cylinder 3 through a through hole of the water collecting tank 4, smoke dust in the smoke is attracted to the side wall of the water curtain cylinder 3 by the two electrode plates 2 after being ionized and negatively charged, when the smoke dust contacts with the water film, the smoke dust is adsorbed by the water film and enters the right part of the filter box 7 along with the water film, the water film is heated and evaporated into water vapor by the heat of the smoke dust, the water vapor and air pass through micropores of a polymer one-way film I of the water curtain cylinder 3 to enter the outside of a purifying cavity of the cylinder body 1, the polymer one-way film II 5 intercepts the water vapor and a small amount of smoke dust in the mixed gas, the small amount of smoke dust is adsorbed by the two electrode plates 2 again, finally when the smoke flow is high, the middle part of the polymer one-way film II 5 expands upwards, so that the push plate 24 compresses the spring 25, when the push plate 24 contacts with the contact sensor 27, the three-way valve 17 regulates the flushing water pumped by the water pump 9 to be conveyed to the jet pump 19 through the jet pipe 18, the jet pump 19 can pump out the water vapor between the water curtain cylinder 3 and the polymer one-way film II 5 through the air suction pipe 21, jet the water vapor into the left part of the filter box 7 through the backflushing pipe 20 and backflush the filter plate 8, so that the filter plate 8 recovers the filtering effect, and when the flow of the flue gas is reduced, the middle part of the polymer one-way film II 5 is reset downwards through the push plate 24 by the elasticity of the spring 25.
The main functions realized by the invention are as follows:
1. the water vapor can be recovered, and the water resource waste is reduced;
2. the filter plate can be backflushed, and the filtering effect of the filter plate is maintained;
3. the two-stage electrostatic dust removal is carried out on the smoke dust through the polymer unidirectional film matched with the electrode plate, so that the dust removal effect is good;
4. can adapt to the fluctuation of the flue gas flow.
The installation mode, the connection mode or the setting mode of the wet electrostatic precipitator for long-period maintenance are common mechanical modes, and the wet electrostatic precipitator can be implemented as long as the beneficial effects of the wet electrostatic precipitator can be achieved; the cylinder 1, the electrode plate 2, the polymer one-way film I, the polymer one-way film II, the liquid level sensor 6, the filter plate 8, the water pump 9, the nozzle 12, the rotary joint 14, the bearing seat 15, the scraping plate 16, the three-way valve 17, the jet pump 19, the radiating fin 22, the spring 25 and the contact sensor 27 of the wet electrostatic precipitator maintained for a long period are purchased in the market, and can be installed and operated by a person skilled in the art according to the attached use instruction without creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. The utility model provides a wet electrostatic precipitator of long period maintenance, includes barrel (1) and two electrode plates (2), and the inside of barrel (1) sets up the purification chamber, and the lower extreme of barrel (1) sets up the inlet, and the upper end of barrel (1) sets up the discharge port, and two electrode plates (2) are installed in the both sides of the purification chamber of barrel (1) relatively, and electrode plates (2) are anode plate and negative plate respectively; the water curtain system is characterized by further comprising a water curtain cylinder (3), a water collecting tank (4), a polymer one-way film II (5) and a flushing system, wherein the water curtain cylinder (3) is cylindrical, a sealing plate is arranged at the upper end of the water curtain cylinder (3), an opening is arranged at the lower end of the water curtain cylinder (3), the water curtain cylinder (3) is concentrically arranged in a purifying cavity of the cylinder (1), the opening of the water curtain cylinder (3) is concentrically aligned with a smoke inlet of the cylinder (1), the side wall of the water curtain cylinder (3) is a polymer one-way film I, the polymer one-way film I is provided with micropores for intercepting smoke dust and passing through water vapor, the water collecting tank (4) is arranged on a smoke inlet of the cylinder (1), a surrounding plate is arranged at the middle part of the water collecting tank (4), the surrounding plate stretches into the opening of the water curtain cylinder (3), a through hole is formed in the middle of the water collecting tank (4), the polymer one-way film II (5) is arranged on a discharge port of the cylinder (1), the polymer one-way film II (5) is provided with micropores for air to pass through and intercept water, and the flushing system is arranged on the polymer one-way film I of the water curtain cylinder (3) and the water curtain (3) is recycled.
2. A long maintenance wet electrostatic precipitator according to claim 1, further comprising a liquid level sensor (6), the liquid level sensor (6) being mounted on the sump (4).
3. The wet electrostatic precipitator of claim 1, wherein the flushing system comprises a filter box (7), a filter plate (8), a water pump (9), a water supply pipe (10), a water distribution ring (11), a plurality of nozzles (12) and an air extraction component, wherein the filter box (7) is arranged below the water collecting tank (4), the filter plate (8) is arranged inside the filter box (7), the filter plate (8) divides the inside of the filter box (7) into a left part and a right part, the right part of the filter box (7) is communicated with the water collecting tank (4), the water pump (9) is arranged on the filter box (7), the water suction pipe of the water pump (9) extends into the left part of the filter box (7), the lower end of the water supply pipe (10) is connected with the water outlet of the water pump (9), the upper end of the water supply pipe (10) is communicated with the water distribution ring (11), the water distribution ring (11) is arranged at the upper inner end of the water curtain cylinder (3), the plurality of nozzles (12) are uniformly arranged on the filter plate (8) and are respectively and uniformly arranged towards the upper end of the water curtain cylinder (3) and extend into the filter plate (8) and extend into the left part of the filter plate (1).
4. A wet electrostatic precipitator for long-term maintenance according to claim 3, further comprising a shaft tube (13), a rotary joint (14) and a bearing seat (15), wherein the upper end of the shaft tube (13) is connected with the upper end of the water supply pipe (10) through the rotary joint (14), the shaft tube (13) is rotatably mounted on the water curtain tube (3) through the bearing seat (15), the lower end of the shaft tube (13) is connected with the water distribution ring (11), and the plurality of nozzles (12) are all obliquely arranged.
5. The wet electrostatic precipitator for long-period maintenance according to claim 4, further comprising a plurality of scrapers (16), wherein the upper ends of the scrapers (16) are connected with the water distribution ring (11), and the scrapers (16) scrape the inner side wall of the polymer unidirectional membrane I of the water curtain cylinder (3).
6. A wet electrostatic precipitator for long-period maintenance according to claim 3, in which the suction assembly comprises a three-way valve (17), a jet pipe (18), a jet pump (19), a backflushing pipe (20) and a suction pipe (21), the three-way valve (17) is installed in the water supply pipe (10) through a main passage and a secondary passage, the upper end of the jet pipe (18) is connected with the other secondary passage of the three-way valve (17), the lower end of the jet pipe (18) is connected with the inlet of the jet pump (19), the upper end of the backflushing pipe (20) is connected with the outlet of the jet pump (19), the lower end of the backflushing pipe (20) extends into the left part of the filter tank (7) and faces the filter plate (8), one end of the suction pipe (21) extends between the water curtain (3) and the polymer unidirectional film two (5), and the other end of the suction pipe (21) is connected with the suction interface of the jet pump (19).
7. A wet electrostatic precipitator for long maintenance according to claim 6, further comprising cooling fins (22), the cooling fins (22) being mounted on the suction pipe (21).
8. The wet electrostatic precipitator for long-period maintenance according to claim 6, further comprising a mounting frame (23), wherein the polymer unidirectional film II (5) is mounted on the discharge port of the cylinder (1) through the mounting frame (23), and the polymer unidirectional film II (5) is in an inverted cone shape.
9. The wet electrostatic precipitator for long-period maintenance according to claim 8, further comprising a push plate (24), a spring (25) and a support (26), wherein the push plate (24) is arranged in the middle of the polymer unidirectional film II (5), the lower end of the spring (25) is connected with the push plate (24), the upper end of the spring (25) is connected with the support (26), and the support (26) is mounted on the cylinder (1).
10. A wet electrostatic precipitator for long maintenance according to claim 9, further comprising a contact sensor (27), the contact sensor (27) being mounted on a support (26), the lower end probe of the contact sensor (27) being spaced from the push plate (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311647868.6A CN117339762A (en) | 2023-12-05 | 2023-12-05 | Wet electrostatic precipitator that long period was maintained |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311647868.6A CN117339762A (en) | 2023-12-05 | 2023-12-05 | Wet electrostatic precipitator that long period was maintained |
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| CN117339762A true CN117339762A (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311647868.6A Pending CN117339762A (en) | 2023-12-05 | 2023-12-05 | Wet electrostatic precipitator that long period was maintained |
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| CN206330248U (en) * | 2016-12-29 | 2017-07-14 | 苏培立 | A kind of air purification humidifier |
| CN208303028U (en) * | 2018-06-29 | 2019-01-01 | 大连民族大学 | A kind of wet-esp integrating device |
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| CN110420759A (en) * | 2019-08-21 | 2019-11-08 | 中冶焦耐(大连)工程技术有限公司 | A kind of electrical tar precipitator unidirectional osmosis membrane type insulated case |
| CN218250838U (en) * | 2022-08-22 | 2023-01-10 | 衡水精臻环保技术有限公司 | Scraping mechanism of wet electrostatic dust collector |
| CN115608515A (en) * | 2022-10-28 | 2023-01-17 | 苏州敬天爱人环境科技有限公司 | Wet-type electrostatic precipitator |
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2023
- 2023-12-05 CN CN202311647868.6A patent/CN117339762A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206330248U (en) * | 2016-12-29 | 2017-07-14 | 苏培立 | A kind of air purification humidifier |
| CN208303028U (en) * | 2018-06-29 | 2019-01-01 | 大连民族大学 | A kind of wet-esp integrating device |
| CN110152886A (en) * | 2019-06-26 | 2019-08-23 | 广西贵港市雄达环保科技有限公司 | Wet type high-pressure electrostatic automatic dust removal equipment |
| CN110420759A (en) * | 2019-08-21 | 2019-11-08 | 中冶焦耐(大连)工程技术有限公司 | A kind of electrical tar precipitator unidirectional osmosis membrane type insulated case |
| CN218250838U (en) * | 2022-08-22 | 2023-01-10 | 衡水精臻环保技术有限公司 | Scraping mechanism of wet electrostatic dust collector |
| CN115608515A (en) * | 2022-10-28 | 2023-01-17 | 苏州敬天爱人环境科技有限公司 | Wet-type electrostatic precipitator |
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