CN116492835B

CN116492835B - A flue gas desulfurization and denitrification tower for thermal power plants

Info

Publication number: CN116492835B
Application number: CN202310646809.0A
Authority: CN
Inventors: 黄妍
Original assignee: Lianyungang Hongyang Thermal Power Co ltd
Current assignee: Lianyungang Hongyang Thermal Power Co ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2025-08-26
Anticipated expiration: 2043-06-02
Also published as: CN116492835A

Abstract

The invention discloses a flue gas desulfurization and denitrification tower of a thermal power plant, which belongs to the technical field of flue gas purification and comprises a flue gas purification tower, wherein a flue gas pretreatment component is arranged in the flue gas purification tower and comprises guide vanes and a flue gas introduction pipe, the flue gas introduction pipe is externally connected to the flue gas purification tower along the tangential direction of the guide vanes, and flue gas of the thermal power plant flows to the guide vanes through the flue gas introduction pipe. According to the invention, the rotating fan blade not only can play a role in lifting the mixing effect of the desulfurization and denitrification liquid medicine and the electric heating long flue gas by means of streaming, but also can actuate the flue gas of the thermal power plant to flow upwards, so that the phenomenon that the flue gas of the thermal power plant sticks to the wall when passing through the flue gas desulfurization and denitrification assembly is prevented from affecting the desulfurization and denitrification effect of the flue gas, a plug-in structure is arranged between the first drawing box and the first drawer, a plug-in structure is arranged between the second drawing box and the second drawer, and the particle purification assembly and the flue gas desulfurization and denitrification assembly are convenient to detach and replace.

Description

Flue gas desulfurization and denitrification tower for thermal power plant

Technical Field

The invention belongs to the technical field of flue gas purification, and particularly relates to a flue gas desulfurization and denitrification tower of a thermal power plant.

Background

The invention patent in the technical field of partial flue gas purification is disclosed in the prior art, wherein Chinese patent CN109092018B discloses a flue gas desulfurization and denitration device, which comprises the following steps of S1, introducing neutral absorption liquid, S2, heating, namely, heating the neutral solution in S1 to obtain a heat neutral solution, S3, atomizing the absorption liquid, namely, atomizing the heat neutral solution in S2, and S4, introducing the flue gas and the ozone into the reaction tower according to the mole ratio of the ozone to the nitrogen-oxygen compound of 1-2.5:3, so as to obtain a flue gas mixture. This technical scheme reasonable in design, the practicality is high, through spraying the clear water after heating on the flue gas mixture, makes the flue gas mixture can fully contact with the clear water, improves washing efficiency, can improve the temperature of flue gas mixture fast in the mixing process of flue gas mixture and spraying, carries out denitration treatment to the flue gas mixture in the subsequent process of being convenient for.

The flue gas desulfurization and denitrification device in the prior art still has some shortages in the in-process of application, and spray and use the shower nozzle to directly install inside desulfurization and denitrification tower more, influence the effect when the jam appears, inconvenient maintenance or change, and can block the flow of flue gas at the in-process that sprays, cause flue gas adherence to flow, seriously influence desulfurization and denitrification effect.

Based on the above, the invention designs a flue gas desulfurization and denitrification tower for a thermal power plant to solve the problems.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the flue gas desulfurization and denitrification device still has some defects in the application process, a spray nozzle is directly arranged in a desulfurization and denitrification tower, the effect is affected when the spray nozzle is blocked, the maintenance or the replacement is inconvenient, the flow of flue gas can be blocked in the spraying process, the wall-attached flow of the flue gas is caused, and the desulfurization and denitrification effect is seriously affected.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The flue gas desulfurization and denitrification tower comprises a flue gas purification tower, wherein a flue gas pretreatment component is arranged in the flue gas purification tower, the flue gas pretreatment component comprises guide vanes and a flue gas introduction pipe, the flue gas introduction pipe is externally connected to the flue gas purification tower along the tangential direction of the guide vanes, the flue gas of the thermal power plant flows to the guide vanes through the flue gas introduction pipe, and the flue gas of the thermal power plant which is introduced along the tangential direction is subjected to rotary motion to be matched with the guide vanes to carry out flue gas and smoke separation;

the flue gas purification tower is provided with a notch outside, the particulate matter purification assembly is clamped in the notch, the flue gas purification tower is provided with a plurality of notches outside, and flue gas desulfurization and denitration assemblies are clamped in the notches.

As a further description of the above technical solution:

The flue gas pretreatment assembly comprises a plurality of switching ring sleeves, the switching ring sleeves are all rotationally connected to the inside of the flue gas purification tower, and the switching ring sleeves are connected through the same embedded guide vane.

As a further description of the above technical solution:

The lower part of the guide vane corresponding to the inside of the flue gas purification tower is sequentially sleeved with a conical cylinder and a dirt collecting bucket, a flue gas introducing pipe is communicated with the lower part of the dirt collecting bucket, and the other end of the flue gas introducing pipe penetrates through a passing connecting hole formed in the wall of the flue gas purification tower and then extends to the outside of the flue gas purification tower.

As a further description of the above technical solution:

The particle purifying assembly comprises a first drawing box, the first drawing box is clamped in a first notch, a first communication port is formed in the first drawing box corresponding to the inside of the flue gas purifying tower in a penetrating mode, a first drawer is connected in the first drawing box in an inserting mode, and a first butt joint port is formed in the first drawer corresponding to the first communication port in a penetrating mode;

the inside of the first drawer is rotationally connected with a first rotating ring corresponding to the first switching opening, a plurality of universal bearings are clamped on the inner ring surface of the first rotating ring to form an annular array, and an atomizing nozzle is sleeved in the universal bearings.

As a further description of the above technical solution:

The first rotating ring is externally connected with a plurality of first water wheel fins to form an annular array, and the first drawer is provided with a liquid inlet corresponding to the tangential direction side of the first water wheel fins.

As a further description of the above technical solution:

The periphery of the first rotating ring is sleeved with a coupling sleeve, the coupling sleeve is connected with the atomizing nozzle, the coupling sleeve is provided with a through hole along the axis direction of the atomizing nozzle, and high-pressure liquid in the first drawing box enters the atomizing nozzle through the through hole;

The periphery of the atomizing nozzle is sleeved with a supporting spring, and the connecting sleeve is elastically connected with the first rotating ring through the supporting spring.

As a further description of the above technical solution:

A plurality of eccentric wheels are connected to the outside of the first rotating ring and are in an annular array, rolling grooves are formed in the lower parts of the eccentric wheels, and balls are connected in the rolling grooves in a rolling mode;

the periphery cover of a swivel becket is equipped with the butt seat, a plurality of domatic grooves have been seted up on the butt seat, the eccentric wheel passes through ball roll connection on the butt seat.

As a further description of the above technical solution:

the flue gas desulfurization denitration subassembly includes No. two pull boxes, no. two pull boxes joint is in No. two breachs, no. two the pull box corresponds the inside intercommunication mouth that has run through of flue gas purification tower, no. two the pull box inserts and is connected with No. two drawers, no. two the drawer corresponds No. two intercommunication mouthfuls and has seted up No. two interfaces.

As a further description of the above technical solution:

The inside of the second drawer is rotatably connected with a second rotating ring corresponding to the second butt joint, a plurality of fan blades are clamped in the second rotating ring, the fan blades are arranged to be of a hollow structure, and an atomization spray hole is formed in the end part of each fan blade;

the second rotating ring is externally connected with a plurality of second water wheel fins to form an annular array, and a liquid medicine introduction port is formed in the second drawing box corresponding to the tangential direction of the second water wheel fins.

As a further description of the above technical solution:

The flue gas purification tower is connected with a tower cover, a flue gas discharge port is formed in the tower cover, and the flue gas of the thermal power plant is discharged through the flue gas discharge port after being purified by a flue gas pretreatment assembly, a particulate matter purification assembly and a plurality of flue gas desulfurization and denitrification assemblies.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. According to the invention, the desulfurization and denitrification liquid medicine drives the second water wheel fin, the second water wheel fin rotates through the second rotating ring, the second rotating ring also drives the plurality of fan blades to do circular motion in the process of rotating, the desulfurization and denitrification liquid medicine in the second drawer flows into the fan blades, the desulfurization and denitrification liquid medicine is sprayed out of the atomizing spray holes under the combined action of liquefaction and centrifugal force and mixed with the flue gas of the thermal power plant after dust removal, the nitrified and sulfides in the flue gas of the thermal power plant are removed, the rotating fan blades not only can play a role of lifting the mixing effect of the desulfurization and denitrification liquid medicine and the electric heating long flue gas by streaming, but also can drive the flue gas of the thermal power plant to flow upwards, the phenomenon that the flue gas of the thermal power plant is adhered to flow when passing through the flue gas desulfurization and denitrification component is prevented, the plug-in structure is arranged between the first drawer and the second drawer, and the plug-in structure is convenient for the disassembly and replacement of the particle purification component and the flue gas desulfurization and denitrification component.

2. According to the invention, the eccentric wheel rolls on the abutting seat through the ball in the rotating process, when the ball rolls in the slope groove on the abutting seat, the atomizing spray heads are turned upward under the action of the elastic force of the supporting spring, and when the ball rolls out of the slope groove, the atomizing spray heads are inclined downward under the supporting action of the abutting seat, so that the spraying direction of the atomizing spray heads can be changed in the process that a plurality of atomizing spray heads do circular motion, and the contact form of atomized dust-settling water and the smoke of the rotary thermal power plant is various, thereby being beneficial to further improving the dust-settling effect of the smoke of the rotary thermal power plant, removing smoke particles in the smoke of the thermal power plant to a higher degree and being beneficial to ensuring the desulfurization and denitrification effects of the smoke of the thermal power plant by the follow-up chemical liquid medicine.

3. According to the invention, the liquid introduction port is used for injecting dust settling water into the first drawing box, the first water wheel fin is driven in the process that the dust settling water flows along the tangential direction of the first water wheel fin, the first water wheel fin rotates through the first rotating ring, the first rotating ring simultaneously drives the plurality of atomizing spray heads to rotate, the dust settling water introduced into the first drawing box in the rotating process of the atomizing spray heads flows into the atomizing spray heads and is finally sprayed into the flue gas purifying tower in an atomizing mode, the rotating direction of the atomizing dust settling water is in reciprocal relation with the rotating direction of the rotating thermal power plant flue gas, the contact time of the rotating thermal power plant flue gas and the atomizing dust settling water can be effectively prolonged, the rotating thermal power plant flue gas can be fully contacted with the atomizing dust settling water, and the water washing effect of the rotating thermal power plant flue gas is improved.

4. According to the invention, smoke of the thermal power plant enters the smoke purification tower through the smoke introduction pipe arranged along the tangential direction of the smoke purification tower to rotate, the smoke of the thermal power plant is guided by the guide vane to rotate strongly, the smoke of the thermal power plant enters the conical cylinder downwards along the inner wall of the smoke purification tower in a spiral manner, the smoke with high density is thrown towards the inner wall of the smoke purification tower and the inner wall of the conical cylinder under the action of centrifugal force, and falls down along the inner wall of the smoke purification tower and the inner wall of the conical cylinder to flow into the dirt collection hopper under the action of gravity, and finally is discharged from the blow-down pipe, and the rotating smoke of the thermal power plant contracts in the cylinder body to flow towards the direction of the particle purification assembly.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a flue gas desulfurization and denitrification tower in a thermal power plant;

Fig. 2 is a schematic perspective view of a flue gas desulfurization and denitrification tower for a thermal power plant according to the present invention at another view angle;

Fig. 3 is a schematic diagram of a perspective structure of a flue gas desulfurization and denitrification assembly in a flue gas desulfurization and denitrification tower of a thermal power plant;

fig. 4 is a schematic diagram of a split three-dimensional structure of a flue gas desulfurization and denitrification tower in a thermal power plant;

fig. 5 is a schematic structural diagram of a first notch and a second notch in a flue gas desulfurization and denitrification tower of a thermal power plant;

FIG. 6 is a schematic diagram of a cross-sectional structure of a flue gas purifying tower in a flue gas desulfurization and denitrification tower of a thermal power plant;

fig. 7 is a schematic diagram of a three-dimensional structure of a split flue gas desulfurization and denitrification assembly in a flue gas desulfurization and denitrification tower of a thermal power plant;

fig. 8 is a schematic diagram of a perspective structure of a particulate purifying component in a flue gas desulfurization and denitrification tower of a thermal power plant according to the present invention;

fig. 9 is a schematic perspective view of a first rotating ring in a flue gas desulfurization and denitrification tower of a thermal power plant;

Fig. 10 is a schematic diagram of a three-dimensional structure of a split particulate purifying component in a flue gas desulfurization and denitrification tower of a thermal power plant.

Legend description:

1. a flue gas purifying tower; 2, a base, 3, a smoke pretreatment component, 301, a transfer ring sleeve, 302, a guide vane, 303, a conical cylinder, 304, a dirt collecting bucket, 305, a smoke introducing pipe, 306, a blow-down pipe, 4, a first notch, 5, a second notch, 6, a particulate matter purification component, 601, a first drawing box, 602, a first communicating port, 603, a first drawer, 604, a first docking port, 605, a first rotating ring, 606, a first water wheel fin, 607, an atomizing nozzle, 608, a connecting sleeve, 609, an eccentric wheel, 610, a ball, 611, a supporting seat, 612, a liquid introducing port, 7, a smoke desulfurization and denitration component, 701, a second drawing box, 702, a second communicating port, 703, a second drawer, 704, a second docking port, 705, a second rotating ring, 706, a fan blade, 707, a second water wheel fin, 708, a liquid medicine introducing port, 8, a tower cover, 9 and a smoke discharging port.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-10, the invention provides a technical scheme that a flue gas desulfurization and denitrification tower of a thermal power plant comprises a flue gas purification tower 1, wherein a flue gas pretreatment component 3 is arranged in the flue gas purification tower 1, the flue gas pretreatment component 3 comprises guide vanes 302 and a flue gas introduction pipe 305, the flue gas introduction pipe 305 is externally connected to the flue gas purification tower 1 along the tangential direction of the guide vanes 302, flue gas of the thermal power plant flows to the guide vanes 302 through the flue gas introduction pipe 305, and the flue gas of the thermal power plant which is introduced along the tangential direction performs rotary motion to cooperate with the guide vanes 302 to separate flue gas and smoke;

The flue gas purification tower 1 has offered a breach 4 outward, and the joint has particulate matter purification module 6 in the breach 4, and flue gas purification tower 1 has offered a plurality of No. two breachs 5 outward, and the equal joint has flue gas desulfurization denitration module 7 in a plurality of No. two breachs 5.

Specifically, as shown in fig. 1 and fig. 4, the flue gas pretreatment assembly 3 includes a plurality of adapter ring sleeves 301, and the plurality of adapter ring sleeves 301 are all rotationally connected in the interior of the flue gas purification tower 1, and the plurality of adapter ring sleeves 301 are connected through the same embedded guide vane 302, a conical cylinder 303 and a dirt collecting bucket 304 are sequentially sleeved below the corresponding guide vane 302 in the interior of the flue gas purification tower 1, a flue gas introduction pipe 305 is connected under the dirt collecting bucket 304, and the other end of the flue gas introduction pipe 305 extends to the exterior of the flue gas purification tower 1 after penetrating through a penetrating connecting hole formed in the tower wall of the flue gas purification tower 1.

The embodiment is that the smoke of the thermal power plant enters the smoke purification tower 1 through the smoke introducing pipe 305, and the smoke of the thermal power plant enters the smoke purification tower 1 through the smoke introducing pipe 305 arranged along the tangential direction of the smoke purification tower 1 to rotate, the smoke of the thermal power plant is subjected to the flow guiding effect of the guide vane 302 to generate strong rotation, the smoke of the thermal power plant enters the conical cylinder 303 downwards in a spiral shape along the inner wall of the smoke purification tower 1, the smoke with high density is thrown towards the inner wall of the smoke purification tower 1 and the inner wall of the conical cylinder 303 under the action of centrifugal force, falls into the dirt collecting hopper 304 along the inner wall of the smoke purification tower and the inner wall of the conical cylinder 303 under the action of gravity, and is finally discharged from the blow-off pipe 306.

Specifically, as shown in fig. 1, fig. 2, fig. 4-fig. 6 and fig. 8-fig. 10, the particulate matter purifying component 6 includes a first drawing box 601, the first drawing box 601 is clamped in the first notch 4, a first communication port 602 is correspondingly provided in the interior of the flue gas purifying tower 1 in a penetrating manner, a first drawer 603 is internally connected in the first drawing box 601, and a first butt joint port 604 is correspondingly provided in the first drawer 603 in a penetrating manner in the first communication port 602;

the inside of the first drawer 603 is rotatably connected with a first rotating ring 605 corresponding to a first switching port, a plurality of universal bearings are clamped on the inner ring surface of the first rotating ring 605 to form an annular array, an atomizing nozzle 607 is sleeved in the universal bearings, a plurality of first water wheel fins 606 are connected outside the first rotating ring 605 to form an annular array, a liquid inlet 612 is formed in the side, corresponding to the tangential direction of the first water wheel fins 606, of the first drawer 603, a connecting sleeve 608 is sleeved on the periphery of the first rotating ring 605, the connecting sleeve 608 is connected with the atomizing nozzle 607, a through hole is formed in the connecting sleeve 608 along the axis direction of the atomizing nozzle 607, and high-pressure liquid in the first drawing box 601 enters the atomizing nozzle 607 through the through hole;

the periphery of the atomizing nozzle 607 is sleeved with a supporting spring, the connecting sleeve 608 is elastically connected with the first rotating ring 605 through the supporting spring, a plurality of eccentric wheels 609 are connected outside the first rotating ring 605 to form an annular array, the atomizing nozzle 607 can drive the connecting sleeve 608 to synchronously rotate in the process of driving the atomizing nozzle 607 to rotate, the connecting sleeve 608 rotates to drive the eccentric wheels 609 to circularly move, the eccentric wheels 609 can vibrate in the process of circularly moving, the surface of atomized dust-settling water sprayed out of the atomizing nozzle 607 can fluctuate under the action of vibration waves, a rolling connecting groove is formed below the eccentric wheels 609, and balls 610 are connected in the rolling connecting groove in a rolling way;

The periphery of the first rotary ring 605 is sleeved with a supporting seat 611, a plurality of sloping surface grooves are formed in the supporting seat 611, and the eccentric wheel 609 is connected to the supporting seat 611 in a rolling way through a ball 610.

The embodiment is that the first water wheel fin 606 is driven by the first water wheel fin 606 in the process of flowing along the tangential direction of the first water wheel fin 606 by injecting the dust falling water into the first drawing box 601 through the liquid inlet 612, the first water wheel fin 606 rotates through the first rotating ring 605, the first rotating ring 605 simultaneously drives the plurality of atomizing nozzles 607 to rotate, the dust falling water introduced into the first drawing box 601 in the rotating process of the atomizing nozzles 607 flows into the atomizing nozzles 607, finally the dust falling water is sprayed into the flue gas purifying tower 1 in an atomized form, the rotating direction of the atomized dust falling water is in reciprocal relation with the rotating direction of the flue gas of the rotating thermal power plant, the rotating flue gas of the thermal power plant and the atomized dust falling water are in opposite relation, the eccentric wheel 609 rolls on the supporting seat 611 through the balls 610 in the rotating process, the balls 610 roll upwards in the slope surface groove on the supporting seat under the action of supporting spring elastic force, the supporting action of the supporting seat 611 rolls out, the atomizing nozzles are downwards, the atomizing nozzles 607 can do various rotating directions of the atomizing nozzles 607 in the circumferential movement of the plurality of atomizing nozzles 607, and the atomized dust falling water is in the rotating direction of the atomizing nozzles.

Specifically, as shown in fig. 1-6, the flue gas desulfurization and denitrification assembly 7 includes a second drawing box 701, the second drawing box 701 is clamped in the second notch 5, a second communication port 702 is provided in the second drawing box 701 corresponding to the interior of the flue gas purification tower 1 in a penetrating manner, a second drawer 703 is connected in the second drawing box 701 in a inserting manner, a second counter port 704 is provided in the second drawer 703 corresponding to the second communication port 702 in a penetrating manner, a second rotating ring 705 is rotatably connected in the second drawer 703 corresponding to the second counter port 704, a plurality of fan blades 706 are clamped in the second rotating ring 705, the fan blades 706 are in a hollow structure, and atomization spray holes are provided at the end parts of the fan blades 706;

The second rotating ring 705 is externally connected with a plurality of second water wheel fins 707 to form an annular array, a liquid medicine introducing port 708 is formed in the tangential direction of the second drawing box 701 corresponding to the second water wheel fins 707, a tower cover 8 is connected to the flue gas purifying tower 1, a flue gas discharging port 9 is formed in the tower cover 8, and flue gas of the thermal power plant is discharged through the flue gas discharging port 9 after being purified by the flue gas pretreatment component 3, the particulate matter purifying component 6 and the flue gas desulfurization and denitrification components 7.

The desulfurization and denitrification liquid medicine is poured into the second drawer 703 through the liquid medicine introducing port 708, the desulfurization and denitrification liquid medicine drives the second water wheel fins 707, the second water wheel fins 707 rotate through the second rotating ring 705, the second rotating ring 705 also drives the plurality of fan blades 706 to do circular motion in the rotating process, the desulfurization and denitrification liquid medicine in the second drawer 703 flows into the fan blades 706, is sprayed out through the atomization spray holes under the combined action of liquefaction and centrifugal force to be mixed with the flue gas of the thermal power plant after dust removal, the nitrites and sulfides in the flue gas of the thermal power plant are removed, and the rotating fan blades 706 not only can play the roles of lifting the mixing effect of the desulfurization and denitrification liquid medicine and the electric heating long flue gas by circulating flow, but also can actuate the flue gas of the thermal power plant to flow upwards.

Working principle, when in use:

The flue gas of the thermal power plant enters the flue gas purification tower 1 through the flue gas introduction pipe 305, the flue gas of the thermal power plant enters the flue gas purification tower 1 through the flue gas introduction pipe 305 arranged along the tangential direction of the flue gas purification tower 1 to rotate, the flue gas of the thermal power plant is strongly rotated under the flow guiding effect of the guide vane 302, the flue gas of the thermal power plant enters the conical cylinder 303 downwards along the inner wall of the flue gas purification tower 1 in a spiral shape, the high-density flue gas is thrown towards the inner wall of the flue gas purification tower 1 and the inner wall of the conical cylinder 303 under the action of centrifugal force, and falls along the inner wall of the flue gas purification tower and the inner wall of the conical cylinder 303 to flow into the sewage collecting hopper 304 under the action of gravity, and finally is discharged from the sewage discharging pipe 306, and the rotating flue gas of the thermal power plant contracts in the cylinder to flow towards the particulate matter purification assembly 6;

The first water wheel fins 606 are driven by the first water wheel fins 606 in the process that the dust fall water flows along the tangential direction of the first water wheel fins 606 through the liquid inlet 612, the first water wheel fins 606 rotate through the first rotating ring 605, the first rotating ring 605 simultaneously drives the plurality of atomizing nozzles 607 to rotate, the dust fall water introduced in the first drawing box 601 of the atomizing nozzle 607 flows into the atomizing nozzle 607 in the rotating process, finally, the dust fall water is sprayed in the flue gas purifying tower 1 in an atomized form, the rotating direction of the atomized dust fall water is reciprocal to the rotating direction of the rotating thermal power plant flue gas, and the rotating thermal power plant flue gas and the atomized dust fall water are mutually opposed to each other, so that the contact time of the rotating thermal power plant flue gas and the atomized dust fall water can be effectively prolonged, the rotating thermal power plant flue gas can be fully contacted with the atomized dust fall water, and the water washing effect of the flue gas of the thermal power plant is improved;

In the process that the first rotating ring 605 drives the atomizing nozzle 607 to rotate, the atomizing nozzle 607 drives the coupling sleeve 608 to synchronously rotate, the coupling sleeve 608 rotates to drive the eccentric wheel 609 to circularly move, the eccentric wheel 609 can vibrate in the process of circularly moving, and the surface of atomized dust-settling water sprayed out of the atomizing nozzle 607 can fluctuate under the action of vibration waves, so that the purification effect of the atomized dust-settling water on the smoke of the rotary power plant is further improved;

The eccentric wheel 609 rolls on the propping seat 611 through the ball 610 in the rotating process, when the ball 610 rolls in the slope groove on the propping seat 611, the atomizing nozzle 607 leans upward under the action of the elastic force of the supporting spring, when the ball 610 rolls out of the slope groove, the atomizing nozzle 607 tilts downward under the supporting action of the propping seat 611, the spraying direction of the atomizing nozzle 607 can be changed in the process that a plurality of atomizing nozzles 607 do circular motion, and the contact form of atomized dust-falling water and the smoke of the rotary thermal power plant is various, thereby being beneficial to further improving the dust-falling effect of the smoke of the rotary thermal power plant, removing the smoke particles in the smoke of the thermal power plant to a higher degree and being beneficial to guaranteeing the desulfurization and denitration effect of the smoke of the thermal power plant by the subsequent chemical liquid medicine;

The desulfurization and denitrification liquid medicine is poured into the second drawer 703 through the liquid medicine introducing port 708, the desulfurization and denitrification liquid medicine drives the second water wheel fins 707, the second water wheel fins 707 rotate through the second rotating ring 705, the second rotating ring 705 also drives the plurality of fan blades 706 to do circular motion in the rotating process, the desulfurization and denitrification liquid medicine in the second drawer 703 flows into the fan blades 706, is sprayed out through the atomizing spray holes under the combined action of liquefaction and centrifugal force to be mixed with the dedusted thermal power plant flue gas, the nitrites and sulfides in the thermal power plant flue gas are removed, the rotating fan blades 706 not only can play a role of mixing the circulating flow to promote the desulfurization and denitrification liquid medicine and the electrothermal long flue gas, but also can actuate the thermal power plant flue gas to flow upwards, and the phenomenon that the thermal power plant flue gas sticks to the wall to flow when passing through the flue gas desulfurization and denitrification component 7 is prevented from affecting the desulfurization and denitrification effect on the flue gas;

the plug-in type structure is arranged between the first drawing box 601 and the first drawer 603, and the plug-in type structure is arranged between the second drawing box 701 and the second drawer 703, so that the particle purifying component and the flue gas desulfurization and denitrification component 7 can be conveniently detached and replaced.

The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.

Claims

1. The utility model provides a flue gas desulfurization denitration tower of steam power plant, includes flue gas purification tower (1), its characterized in that, the inside of flue gas purification tower (1) is provided with flue gas pretreatment unit (3), flue gas pretreatment unit (3) include guide vane (302) and flue gas introducing pipe (305), flue gas introducing pipe (305) are on flue gas purification tower (1) along guide vane (302) tangential direction external connection, and steam power plant's flue gas is through flue gas introducing pipe (305) flow to guide vane (302), and the steam power plant's flue gas that is introduced along tangential is rotatory motion cooperation guide vane (302) carries out flue gas smoke and dust separation;

The flue gas purification tower (1) is externally provided with a first notch (4), the first notch (4) is internally clamped with a particulate matter purification assembly (6), the flue gas purification tower (1) is externally provided with a plurality of second notches (5), and flue gas desulfurization and denitrification assemblies (7) are respectively clamped in the second notches (5);

the particulate matter purifying assembly (6) comprises a first drawing box (601), the first drawing box (601) is clamped in a first notch (4), a first communication port (602) is formed in the first drawing box (601) in a penetrating mode corresponding to the flue gas purifying tower (1), a first drawer (603) is connected in the first drawing box (601) in an inserting mode, and a first butt joint port (604) is formed in the first drawer (603) in a penetrating mode corresponding to the first communication port (602);

A first rotating ring (605) is rotatably connected inside the first drawer (603) corresponding to the first switching port, a plurality of universal bearings are clamped on the inner ring surface of the first rotating ring (605) to form an annular array, and an atomizing nozzle (607) is sleeved in the universal bearings;

a plurality of first water wheel fins (606) are connected to the outside of the first rotating ring (605) in an annular array, and a liquid inlet (612) is formed in the side of the first drawer (603) corresponding to the tangential direction of the first water wheel fins (606);

A coupling sleeve (608) is sleeved on the periphery of the first rotary ring (605), the coupling sleeve (608) is connected with the atomizing nozzle (607), a through hole is formed in the coupling sleeve (608) along the axis direction of the atomizing nozzle (607), and high-pressure liquid in the first drawing box (601) enters the atomizing nozzle (607) through the through hole;

The periphery of the atomizing nozzle (607) is sleeved with a supporting spring, and the connecting sleeve (608) is elastically connected with the first rotating ring (605) through the supporting spring;

A plurality of eccentric wheels (609) are connected to the outside of the first rotating ring (605) in an annular array, rolling grooves are formed under the eccentric wheels (609), and balls (610) are connected in the rolling grooves in a rolling mode;

The periphery of the first rotating ring (605) is sleeved with a supporting seat (611), a plurality of slope grooves are formed in the supporting seat (611), and the eccentric wheel (609) is connected to the supporting seat (611) in a rolling mode through a ball (610).

2. The flue gas desulfurization and denitrification tower of the thermal power plant according to claim 1, wherein the flue gas pretreatment assembly (3) comprises a plurality of adapter rings (301), the adapter rings (301) are all rotationally connected inside the flue gas purification tower (1), and the adapter rings (301) are connected through the same embedded guide vane (302).

3. The flue gas desulfurization and denitrification tower of the thermal power plant according to claim 2, wherein a conical cylinder (303) and a sewage collecting bucket (304) are sequentially sleeved below the corresponding guide vane (302) in the flue gas purification tower (1), a sewage draining pipe (306) is connected under the sewage collecting bucket (304), and the other end of the sewage draining pipe (306) penetrates through a through connecting hole formed in the tower wall of the flue gas purification tower (1) and then extends to the outside of the flue gas purification tower (1).

4. The flue gas desulfurization and denitrification tower of the thermal power plant according to claim 1, wherein the flue gas desulfurization and denitrification assembly (7) comprises a second drawing box (701), the second drawing box (701) is clamped in the second notch (5), a second communication port (702) is formed in the second drawing box (701) corresponding to the flue gas purification tower (1) in a penetrating mode, a second drawer (703) is connected in the second drawing box (701) in a penetrating mode, and the second drawer (703) corresponds to the second communication port (702) in a penetrating mode, and a second butt joint port (704) is formed in the second drawer (702) in a penetrating mode.

5. The flue gas desulfurization and denitrification tower of the thermal power plant according to claim 4, wherein a second rotating ring (705) is rotatably connected to a second butt joint (704) corresponding to the second drawer (703), a plurality of fan blades (706) are clamped in the second rotating ring (705), the fan blades (706) are arranged to be of a hollow structure, and atomization spray holes are formed in the end parts of the fan blades (706);

The second rotating ring (705) is externally connected with a plurality of second water wheel fins (707) to form an annular array, and a liquid medicine introducing port (708) is formed in the second drawing box (701) corresponding to the tangential direction of the second water wheel fins (707).

6. The flue gas desulfurization and denitrification tower of the thermal power plant according to claim 1, wherein the flue gas purification tower (1) is connected with a tower cover (8), a flue gas discharge port (9) is formed in the tower cover (8), and flue gas of the thermal power plant is discharged through the flue gas discharge port (9) after being purified by the flue gas pretreatment component (3), the particulate matter purification component (6) and the flue gas desulfurization and denitrification components (7).