CN109340800A - A kind of boiler afterheat recovering device of desulphurization denitration - Google Patents
A kind of boiler afterheat recovering device of desulphurization denitration Download PDFInfo
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- CN109340800A CN109340800A CN201811081336.XA CN201811081336A CN109340800A CN 109340800 A CN109340800 A CN 109340800A CN 201811081336 A CN201811081336 A CN 201811081336A CN 109340800 A CN109340800 A CN 109340800A
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- Prior art keywords
- desulfurization
- reaction device
- denitrification reaction
- flash tank
- wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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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
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to Industrial Boiler fields, and in particular to a kind of boiler afterheat recovering device of desulphurization denitration specifically includes that desulfurization and denitrification reaction device, desulfurization and denitrification reaction device are in the cylindrical chamber structure of vertical display；The arbitrary side in desulfurization and denitrification reaction device bottom is equipped with the smoke inlet with internal run-through；The outlet flue with internal run-through is equipped at the top of desulfurization and denitrification reaction device；It is located at below outlet flue in desulfurization and denitrification reaction device and is equipped with desulfurizer；The lower section of desulfurizer is equipped with denitration catalyst core；Flash tank, flash tank is the annular housing structure being coaxially disposed inside desulfurization and denitrification reaction device, and flash tank side wall is equipped with internally perforative water inlet pipe, and the one end of water inlet pipe far from flash tank extends outwardly through the hole inside perforation desulfurization and denitrification reaction device and is connected to high pressure pump outlet end；Exhaust is equipped at the top of flash tank, exhaust pipe pipe is through desulfurization and denitrification reaction device inner sidewall and extends outward, and is connected to vapor can.
Description
Technical field
The present invention relates to Industrial Boiler fields, and in particular to a kind of boiler afterheat recovering device of desulphurization denitration.
Background technique
In the prior art, the flue gas and waste water that boiler generates are used as waste directly to exhaust more, this both polluted environment, together
When flue gas and waste water present in a large amount of waste heats be not also used properly, the higher enterprise's multi-pass of awareness of saving energy crosses heat exchange
Device discharges again after the waste heat of sewerage is recycled, but using the boiler of such mode, remaining heat recovery efficiency is limited, largely
Waste heat energy still wastes.
Summary of the invention
The purpose of the present invention is to provide a kind of boiler afterheat recovering devices of desulphurization denitration, pass through the heat exchange in flue
Device realizes the waste heat recycling of boiler during desulphurization denitration, substantially increases waste heat recovery efficiency.
To achieve the above object, the present invention provides a kind of following scheme: boiler afterheat recovering device of desulphurization denitration, master
It include: desulfurization and denitrification reaction device, desulfurization and denitrification reaction device is in the cylindrical chamber structure of vertical display；Desulfurization and denitrification reaction device bottom
The arbitrary side in portion is equipped with the smoke inlet with internal run-through；The outlet flue with internal run-through is equipped at the top of desulfurization and denitrification reaction device；
It is located at below outlet flue in desulfurization and denitrification reaction device and is equipped with desulfurizer；The lower section of desulfurizer is equipped with denitration catalyst core；Flash distillation
Case, flash tank is the annular housing structure being coaxially disposed inside desulfurization and denitrification reaction device, and flash tank side wall is equipped with internally
Perforative water inlet pipe, the one end of water inlet pipe far from flash tank through perforation desulfurization and denitrification reaction device inside hole extend outwardly and with height
The connection of press pump outlet end；Exhaust is equipped at the top of flash tank, exhaust pipe pipe prolongs through desulfurization and denitrification reaction device inner sidewall and to outside
It stretches, is connected to vapor can.
Preferably, one end that water pipe is located at flash tank is disposed coaxially on inside flash tank in the shape of a spiral, and water pipe is separate
One end of high-pressure pump is enclosed construction.
Preferably, desulfurization mechanism is the horizontally arranged spray tube of several groups, and spray tube lateral wall is equipped with the hair of several perforations
Thin spray orifice；The both ends of spray tube extend outwardly through the openings of desulfurization and denitrification reaction device inner wall, and the outlet with external pressure pump
End connection, the input end of pressure pump are connected to desulfurization pharmacy jar；Sewage collecting disk, the row of sewage collecting disk are equipped with below spray tube
Openings of the water pipe through desulfurization and denitrification reaction device inner wall are connected to external sewage pump.
Preferably, bottom side is equipped with denitration catalyst core, denitration catalyst core lateral wall and desulfurization and denitrification reaction under sewage collecting disk
The sealing cooperation of device inner sidewall, and the air hole for several perforation upper and lower ends of gathering, the inner sidewall of air hole are coated with denitration catalyst
Agent.
Preferably, heat exchanger is equipped with below flash tank, heat exchanger is what several coaxially set with desulfurization and denitrification reaction device
Annulus, each annulus lateral wall are connected and fixed with desulfurization and denitrification reaction device inner sidewall, and each annulus inner sidewall is connected with
One sieve woven by a metallic conduit level, the both ends of metallic conduit are respectively through running through the inside of desulfurization and denitrification reaction device
Cinclides is connected with external hot water pipeline.
Preferably, flash tank bottom is equipped with several and internal run-through standpipe vertically, and the one end of standpipe far from flash tank is
Closed state；It is equipped with heat conduction fin between the two neighboring standpipe of flash tank, heat conduction fin is horizontally disposed pipeline configuration, and section
It is arranged in oblong；Heat conduction fin is equipped with a pair of through hole being arranged above and below close to the side of desulfurization and denitrification reaction device inner wall, is located at
The through hole on heat transfer device top is connect by connecting tube with upper annular conduit, and the through hole below heat conduction fin passes through connection
Pipe is connected to lower annular pipeline；Upper annular conduit is equipped with heat outlet close to the side of desulfurization and denitrification reaction device inner sidewall,
Lower annular pipeline is equipped with air intlet close to the side of desulfurization and denitrification reaction device inner wall, and air intlet is by running through desulphurization denitration
The air inlet pipe of inside reactor is connected to the venthole of external air pump, and heat outlet passes through through desulfurization and denitrification reaction device inner wall
Escape pipe is connected to external heat exchanger.
Preferably, central airway is coaxially also fixed with by bracket inside desulfurization and denitrification reaction device, inside central airway
It is coaxially provided with shuttle shape axis, shuttle shape axis both ends are cone-shaped setting, and the lateral wall of shuttle shape axis is circumferentially with several blades；Center
The upper and lower side of air flue is respectively equipped with the bearing block with the cooperation of shuttle shape axis, and one end of each axle bed towards shuttle shape axis is respectively equipped with taper
Pit, the taper of pyramidal pits are greater than the taper of shuttle shape axis both ends pointed cone, and the pointed cone head of the bottom of tapered shaft and shuttle shape axis
Portion's cooperation；Outer wall of the tapered shaft close to arbitrary one end is also coaxially provided with the first bevel gear；Desulfurization and denitrification reaction device lateral wall is set
There is internally perforative axle sleeve, axle sleeve is located at one end inside desulfurization and denitrification reaction device and passes through the through hole of central airway internally
Extend；Coaxial nested equipped with transmission shaft in axle sleeve, one end that transmission shaft is located in central airway is connected with the second bevel gear, the
Two bevel gears and the first bevel gear engaged transmission；Transmission shaft is located at one end and motor output shaft company outside desulfurization and denitrification reaction device
It connects, motor is connected and fixed by bracket and desulfurization and denitrification reaction device outer wall.
Preferably, central airway bottom is coaxially provided with pod, interval is equipped between pod and central airway, and lead
The outer arc flange circumferentially arranged with turnup upward of stream cover bottom.
Preferably, transmission shaft is connect with the second bevel gear by temperature control shaft coupling, and temperature control shaft coupling includes remote with transmission shaft
Axle sleeve from the connection of motor one end coaxial rigid, and with the second bevel gear close to the rigidly connected spindle nose in transmission shaft one end, axis
Head and axle sleeve it is coaxial it is nested be arranged, and the one end of spindle nose far from the second bevel gear, equipped with positioning head, spindle nose is equipped with and positioning head
Corresponding location hole, positioning head and location hole pass through bearing fit；Spindle nose lateral wall is circumferentially with several arc bimetal leafs, double
The arbitrary one end of sheet metal is connected and fixed with spindle nose lateral wall；Bimetal leaf is equipped with friction block, friction block far from one end of spindle nose
With axle sleeve inner sidewall frictional fit.
Beneficial effects of the present invention: the device is connected in the road pipeline of boiler smoke, and smoke inlet enters, through denitrification apparatus
And it is discharged after desulfurizer processing through outlet flue.In this process, the temperature of flue gas heats flash tank, in external high pressure
Under the cooperation of water pump, pure water is pumped into flash tank through water inlet pipe, and the flash tank after heating is boiled by pure water immediately and produces
Raw a large amount of steam, hot steam are discharged through the exhaust pipe at the top of flash tank and are temporarily stored in vapor can, for subsequent relevant device into
Row is taken.
Spiral helicine water pipe is distributed in the flash tank of annular, therefore has gathered longer length, is gathered in water pipe side wall
Capillary through holes under differential pressure action, spray water with mist, when water mist is touched by the flash tank of flue gas rear end
After wall, by boiled and generate steam rapidly, steam is discharged under internal pressure effect through exhaust pipe.
After flue gas after denitration enters the working range of desulfurizer, it is anti-that chemistry occurs in the desulfurization medicament that spray tube sprays
It answers, the liquid after reaction generates storing and is collected into sewage collecting disk, and is conveyed outward by the drainpipe of sewage collecting disk.Position
Sewage after sewage pump outside desulfurization and denitrification reaction device further generates reaction is pumped to associated processing equipment, thus
Reach environmentally friendly purpose.
When flue gas passes through the air hole in catalysis core, the nitre in flue gas generates catalysis with denitrating catalyst and reacts, thus
Denitration is achieved the purpose that.
When high-temperature flue gas passes through the water pipe sieve that heat exchanger gathers, concurrent stranger is come into full contact with water pipe tube wall and transmits effect
Benefit so that the water in water pipe is heated to higher temperature, and under the action of water pump by the delivery after heating extremely
Party in request can be realized that water flow is with faster, the water of degree further with regards to the control to water temperature by water pump to the control of water velocity
Heating temperature it is lower, when needing the hot water of higher temperature, pump capacity need to be reduced so that water in water pipe obtain compared with
High temperature.
Hollow heat conduction fin carries out conversion for that will preheat in the form of hot gas, under the action of air pump under air warp
Circulating line indentation in portion's imports in hot fin, due to heat conduction fin outer wall directly and smoke contacts, under the action of heat transmitting
The air of internal flow is heated, the air after heating is discharged from upper not circulating line, and carries out heat supply to related facility.
In addition, standpipe and two end in contact of heat conduction fin in flash tank bottom, and the thermal energy of heat conduction fin is absorbed, it is further to the water in standpipe
Heating, and steam is generated in flash tank.
Shuttle shape axis motor and the first bevel gear, the second bevel gear driving under rotate, and by blade in central airway
It is interior to generate the air-flow blown downwards, to generate the upward circulating current of the downward surrounding in center, circulation in desulfurization and denitrification reaction device
Air-flow is contacted with flash tank by high-order flue gas is lasting, to play the purpose sufficiently heated to flash tank.In addition, shuttle shape axis
Both ends by pointed cone and bore slot cooperation will low frictional force, avoid roller bearing disliking and omit drawback perishable in environment.
Down current tuning in central airway is guided the surrounding to central airway by the upper overturning of pod, thus
Avoid with flue gas provide it is contrary cause flue gas flow backwards phenomenon.
Temperature control shaft coupling is used to be adjusted the size of interior circulating effect according to flue-gas temperature, when flue-gas temperature is higher
When, although recycling by a series of waste heat, finally still there is higher heat, therefore internal circulation system is comparing according to setting
By controlling transmission shaft into the temperature control shaft coupling at top to the transmission efficiency of shuttle shape axis, when temperature is higher, arc bimetal leaf
Difference based on bimetallic thermal expansion coefficient is deformed, and is determined friction block according to the height of temperature to sleeve lining side
To extruding dynamics, temperature is higher, and extruding force is bigger, is made so as to cause spindle nose by the transmitting of arc bimetal leaf and friction block
It is acted on with the efficient torque transmitting of transmission shaft.When flue-gas temperature is low, arc bimetal leaf resets, so as to cause friction block and axis
It covers inner wall to be detached from, terminates the torque transmitting for being driven axial spindle nose, the shuttle shape axis for losing driving torsion is not rotating, and stopped interior
The circulatory system, and by blade to the resistance of flue gas, the flowing velocity for reducing flue gas increases flue gas to residual neat recovering system
Time of contact, improve recovery efficiency.
Detailed description of the invention
Fig. 1 is overall schematic of the present invention；
Fig. 2 is flash tank partial schematic diagram of the present invention；
Fig. 3 is center air duct of the present invention schematic diagram；
Fig. 4 is partial sectional view of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention is described in detail.
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of boiler afterheat recovering device of desulphurization denitration specifically includes that desulfurization is de-
Nitre reactor 1, desulfurization and denitrification reaction device 1 are in the cylindrical chamber structure of vertical display；1 bottom of desulfurization and denitrification reaction device arbitrary one
Side is equipped with the smoke inlet 2 with internal run-through；The outlet flue 3 with internal run-through is equipped at the top of desulfurization and denitrification reaction device 1；Desulphurization denitration
It is located at below outlet flue 3 in reactor 1 and is equipped with desulfurizer；The lower section of desulfurizer is equipped with denitration catalyst core 4；Flash tank 5 dodges
Steam box 5 is the annular housing structure being coaxially disposed inside desulfurization and denitrification reaction device 1, and 5 side wall of flash tank is equipped with and internally passes through
The water inlet pipe 6 worn, the one end of water inlet pipe 6 far from flash tank 5 through perforation desulfurization and denitrification reaction device 1 inside hole extend outwardly and with
The connection of high pressure pump outlet end；Exhaust pipe is equipped at the top of flash tank 5, exhaust pipe is through 1 inner sidewall of desulfurization and denitrification reaction device and outside
Portion extends, and is connected to vapor can.
The device is connected in the road pipeline of boiler smoke, smoke inlet 2 enters, after denitrification apparatus and desulfurizer processing
It is discharged through outlet flue 3.In this process, the temperature of flue gas heats flash tank 5, under the cooperation of external high-pressure hydraulic pump,
Pure water is pumped into flash tank 5 through water inlet pipe 6, and the flash tank 5 after heating is boiled by pure water immediately and generates a large amount of steam,
Hot steam is discharged through the exhaust pipe at 5 top of flash tank and is temporarily stored in vapor can, is taken for subsequent relevant device.
As a preferred embodiment, one end that water pipe is located at flash tank 5 is disposed coaxially in the shape of a spiral inside flash tank 5, and
And pipe outer wall is equipped with the hydrophthalmia of the capillary through holes shape of several perforations, and the one end of water pipe far from high-pressure pump is enclosed construction.
Spiral helicine water pipe is distributed in the flash tank 5 of annular, therefore has gathered longer length, is gathered in water pipe side wall
Capillary through holes under differential pressure action, spray water with mist, when water mist is touched by flue gas rear end flash tank 5
After wall, by boiled and generate steam rapidly, steam is discharged under internal pressure effect through exhaust pipe.
As a preferred embodiment, desulfurizer is the horizontally arranged spray tube 7 of several groups, if 7 lateral wall of spray tube is equipped with
The capillary spray orifice of dry perforation；The both ends of spray tube 7 extend outwardly through the openings of 1 inner wall of desulfurization and denitrification reaction device, and with outside
The outlet end of pressure pump is connected to, and the input end of pressure pump is connected to desulfurization pharmacy jar；Sewage collecting disk 8 is equipped with below spray tube 7,
Openings of the drainpipe of sewage collecting disk 8 through 1 inner wall of desulfurization and denitrification reaction device are connected to external sewage pump.
After flue gas after denitration enters the working range of desulfurizer, chemistry occurs in the desulfurization medicament that spray tube 7 sprays
Reaction, the liquid after reaction generate storing and are collected into sewage collecting disk 8, and defeated outward by the drainpipe of sewage collecting disk 8
It send.Sewage after reaction generation is further pumped to relevant treatment and set by the sewage pump outside desulfurization and denitrification reaction device 1
It is standby, to reach environmentally friendly purpose.
As a preferred embodiment, the lower bottom side of sewage collecting disk 8 is equipped with denitration catalyst core 4,4 lateral wall of denitration catalyst core and de-
The sealing cooperation of 1 inner sidewall of sulphur Benitration reactor, and the air hole for several perforation upper and lower ends of gathering, the inner sidewall of air hole apply
There is denitrating catalyst.
When flue gas passes through the air hole in catalysis core, the nitre in flue gas generates catalysis with denitrating catalyst and reacts, thus
Denitration is achieved the purpose that.
As a preferred embodiment, heat exchanger is equipped with below flash tank 5, heat exchanger is several and desulfurization and denitrification reaction device 1
The annulus 9 coaxially set, each 9 lateral wall of annulus is connected and fixed with 1 inner sidewall of desulfurization and denitrification reaction device, and each annulus 9
Inner sidewall is connected with the sieve 10 woven by a metallic conduit level, and the both ends of metallic conduit are respectively through running through desulfurization
The inside cinclides of Benitration reactor 1 is connected with external hot water pipeline.
When high-temperature flue gas passes through the water pipe sieve 10 that heat exchanger gathers, concurrent stranger is come into full contact with water pipe tube wall and transmits effect
Benefit so that the water in water pipe is heated to higher temperature, and under the action of water pump by the delivery after heating extremely
Party in request can be realized that water flow is with faster, the water of degree further with regards to the control to water temperature by water pump to the control of water velocity
Heating temperature it is lower, when needing the hot water of higher temperature, pump capacity need to be reduced so that water in water pipe obtain compared with
High temperature.
As a preferred embodiment, 5 bottom of flash tank is equipped with several and internal run-through standpipe 5011 vertically, and standpipe 5011 is remote
One end from flash tank is closed state；Heat conduction fin 12 is equipped between the two neighboring standpipe 5011 of flash tank 5, heat conduction fin 12 is
Horizontally disposed pipeline configuration, and section is arranged in oblong；Heat conduction fin 12 is set close to the side of 1 inner wall of desulfurization and denitrification reaction device
There is a pair of through hole being arranged above and below, the through hole positioned at heat transfer device top is connect by connecting tube with upper, annular pipe 13,
Through hole positioned at 12 lower section of heat conduction fin is connected to by connecting tube with lower annular pipe 14；Upper, annular pipe 13 is close to desulfurization
The side of 1 inner sidewall of Benitration reactor be equipped with heat outlet, lower annular pipe 14 close to 1 inner wall of desulfurization and denitrification reaction device one
Side is equipped with air intlet 16, air intlet 16 by air inlet pipe inside the desulfurization and denitrification reaction device 1 and external air pump out
Stomata connection, heat outlet 15 are connected to by the escape pipe through 1 inner wall of desulfurization and denitrification reaction device with external heat exchanger.
Hollow heat conduction fin 12 carries out conversion for that will preheat in the form of hot gas, and air passes through under the action of air pump
The indentation of lower annular pipe 14 imports in hot fin, due to heat conduction fin 12 outer wall directly and smoke contacts, in heat transmitting
The air of internal flow is heated under effect, the air after heating is discharged from upper not circulating line, and to related facility into
Row heat supply.In addition, standpipe 5011 and 12 liang of end in contact of heat conduction fin in 5 bottom of flash tank, and the thermal energy of heat conduction fin 12 is absorbed, it is right
Water in standpipe 5011 further heats, and generates steam in flash tank 5.
As a preferred embodiment, central airway 17 is coaxially also fixed with by bracket inside desulfurization and denitrification reaction device 1, in
Shuttle shape axis 18 is coaxially provided with inside motive road 17,18 both ends of shuttle shape axis are cone-shaped setting, and the lateral wall of shuttle shape axis 18 is all
To equipped with several blades 19；The upper and lower side of central airway 17 is respectively equipped with the bearing block cooperated with shuttle shape axis 18, each axle bed court
Pyramidal pits are respectively equipped with to one end of shuttle shape axis 18, the taper of pyramidal pits is greater than the taper of 18 both ends pointed cone of shuttle shape axis, and
And the pointed cone head fits of the bottom of tapered shaft and shuttle shape axis 18；Outer wall of the tapered shaft close to arbitrary one end is also coaxially provided with
One bevel gear 22；1 lateral wall of desulfurization and denitrification reaction device is equipped with internally perforative axle sleeve, axle sleeve are located at desulfurization and denitrification reaction device 1
Internal one end is extended inward by the through hole of central airway 17；It is coaxial nested equipped with transmission shaft 21, transmission shaft in axle sleeve
21 one end being located in central airway 17 are connected with the second bevel gear 23, and the second bevel gear 23 engages biography with the first bevel gear 22
It is dynamic；One end that transmission shaft 21 is located at outside desulfurization and denitrification reaction device 1 is connect with motor output shaft, and motor passes through bracket and desulphurization denitration
1 outer wall of reactor is connected and fixed.
Shuttle shape axis 18 motor and the first bevel gear 22, the second bevel gear 23 driving under rotate, and existed by blade 19
The air-flow blown downwards is generated in central airway 17, the downward surrounding in center is upward to be followed to generate in desulfurization and denitrification reaction device 1
Ring air-flow, circulating current is contacted with flash tank 5 by high-order flue gas is lasting, to play the purpose sufficiently heated to flash tank 5.
In addition, the both ends of shuttle shape axis 18 by pointed cone and bore slot cooperation will low frictional force, avoid roller bearing disliking and omit environment
In perishable drawback.
As a preferred embodiment, 17 bottom of central airway is coaxially provided with pod 24, pod 24 and central airway 17 it
Between be equipped with interval, and the outer arc flange circumferentially arranged with turnup upward of 24 bottom of pod.
The upper overturning of pod 24 guides the down current tuning in central airway 17 to four outside central airway 17
Week flue gas is caused to flow backwards phenomenon so as to avoid contrary with flue gas granting.
As a preferred embodiment, transmission shaft 21 is connect with the second bevel gear 23 by temperature control shaft coupling, temperature control shaft coupling packet
The axle sleeve connecting with transmission shaft 21 far from motor one end coaxial rigid is included, and with the second bevel gear 23 close to 21 one end of transmission shaft
Rigidly connected spindle nose, the coaxial nested setting of spindle nose and axle sleeve, and spindle nose is equipped with positioning far from one end of the second bevel gear 23
Head, spindle nose are equipped with location hole corresponding with positioning head, and positioning head and location hole pass through bearing fit；Spindle nose lateral wall is circumferentially with
Several arc bimetal leafs, the arbitrary one end of bimetal leaf are connected and fixed with spindle nose lateral wall；Bimetal leaf far from spindle nose one
End is equipped with friction block, friction block and axle sleeve inner sidewall frictional fit.
Temperature control shaft coupling is used to be adjusted the size of interior circulating effect according to flue-gas temperature, when flue-gas temperature is higher
When, although recycling by a series of waste heat, finally still there is higher heat, therefore internal circulation system is comparing according to setting
By controlling transmission shaft 21 into the temperature control shaft coupling at top to the transmission efficiency of shuttle shape axis 18, when temperature is higher, arc is double golden
Belong to piece to be deformed based on the difference of bimetallic thermal expansion coefficient, and is determined friction block according to the height of temperature into axle sleeve
The extruding dynamics in wall direction, temperature is higher, and extruding force is bigger, passes through the biography of arc bimetal leaf and friction block so as to cause spindle nose
It passs effect and the efficient torque transmitting of transmission shaft 21 acts on.When flue-gas temperature is low, arc bimetal leaf resets, so as to cause friction
Block and sleeve lining are detached from, and are terminated transmission shaft 21 and are transmitted to the torque of spindle nose, and the shuttle shape axis 18 for losing driving torsion is not rotating,
And it stopped internal circulation system, and by blade 19 to the resistance of flue gas, the flowing velocity for reducing flue gas increases flue gas pair
The time of contact of residual neat recovering system, improve recovery efficiency.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of boiler afterheat recovering device of desulphurization denitration comprising desulfurization and denitrification reaction device (1), the desulfurization and denitrification reaction
Device (1) is in the cylindrical chamber structure of vertical display；The arbitrary side in desulfurization and denitrification reaction device (1) bottom is equipped with and passes through with inside
Logical smoke inlet (2)；The outlet flue (3) with internal run-through is equipped at the top of the desulfurization and denitrification reaction device (1)；The desulphurization denitration
It is located at below the outlet flue (3) in reactor (1) and is equipped with desulfurizer；The lower section of the desulfurizer is equipped with denitration catalyst core
(4) characterized by comprising
Flash tank (5), the flash tank (5) are to be coaxially disposed desulfurization and denitrification reaction device (1) inside, and be located at the desulfurization
Annular housing structure between device and the denitration catalyst core (4), and the flash tank (5) side wall is equipped with and internally runs through
Water inlet pipe (6), it is internal that the one end of the water inlet pipe (6) far from flash tank (5) is penetrated through the desulfurization and denitrification reaction device (1)
Hole extends outwardly and is connected to high pressure pump outlet end；Exhaust pipe is equipped at the top of the flash tank (5), the exhaust pipe is through described
Desulfurization and denitrification reaction device (1) inner sidewall simultaneously extends outward, and is connected to vapor can.
2. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 1, it is characterised in that: the water inlet pipe
(6) one end positioned at the flash tank (5) is disposed coaxially on the flash tank (5) inside, and the water inlet pipe in the shape of a spiral
(6) one end far from the high-pressure pump is enclosed construction, while it is close to be located at the flash tank (5) internal water inlet pipe (6) side wall
The hydrophthalmia of cloth perforation.
3. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 1, it is characterised in that: the desulfurization dress
It is set to the horizontally arranged spray tube of several groups (7), spray tube (7) lateral wall is equipped with the capillary spray orifice of several perforations；It is described
The both ends of spray tube (7) extend outwardly through the openings of desulfurization and denitrification reaction device (1) inner wall, and with external pressure pump
Outlet end connection, the input end of the pressure pump are connected to desulfurization pharmacy jar；Sewage collecting disk is equipped with below the spray tube (7)
(8), openings of the drainpipe of the sewage collecting disk (8) through desulfurization and denitrification reaction device (1) inner wall and external sewage pump
Connection.
4. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 3, it is characterised in that: the denitration is urged
Change core (4) lateral wall and desulfurization and denitrification reaction device (1) inner sidewall sealing cooperates, and several perforation upper and lower ends of gathering
The inner sidewall of air hole, the air hole is coated with denitrating catalyst.
5. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 1, it is characterised in that: the denitration is urged
The top for changing core (4) is equipped with heat exchanger, and the heat exchanger is the circle that several coaxially set with the desulfurization and denitrification reaction device (1)
Ring (9), each annulus (9) lateral wall are connected and fixed with desulfurization and denitrification reaction device (1) inner sidewall, and each described
Annulus (9) inner sidewall is connected with the sieve (10) woven by a metallic conduit level, the both ends of the metallic conduit
It connects respectively through the inside cinclides through the desulfurization and denitrification reaction device (1) with external hot water pipeline.
6. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 1, it is characterised in that: the flash tank
(5) bottom is equipped with several and internal run-through standpipe (50) (11) vertically, and the standpipe (50) (11) is far from the flash tank
One end is closed state；Heat conduction fin (12) are equipped between the two neighboring standpipe (50) (11) of the flash tank (5), it is described thermally conductive
Fin (12) is horizontally disposed pipeline configuration, and section is arranged in oblong；The heat conduction fin (12) is close to the desulphurization denitration
The side of reactor (1) inner wall is equipped with a pair of through hole being arranged above and below, and the through hole positioned at the heat transfer device top passes through company
Adapter tube is connect with upper, annular pipe (13) road, is located at the through hole below the heat conduction fin (12) and is passed through connecting tube and lower annular
Manage the connection of (14) road；Upper, annular pipe (13) road is equipped with heat close to the side of desulfurization and denitrification reaction device (1) inner sidewall
Gas export (15), lower annular pipe (14) road close to the side of desulfurization and denitrification reaction device (1) inner wall be equipped with air into
Mouth (16), the air intlet (16) pass through through the internal air inlet pipe of the desulfurization and denitrification reaction device (1) and external air pump
Venthole connection, the heat outlet (15) pass through the escape pipe and outside heat through desulfurization and denitrification reaction device (1) inner wall
Exchanger connection.
7. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 1, it is characterised in that: the desulfurization is de-
Nitre reactor (1) is internal to be also coaxially fixed between the desulfurizer and the denitration catalyst core (4) by bracket
Central airway (17), the central airway (17) is internal to be coaxially provided with shuttle shape axis (18), and shuttle shape axis (18) both ends are pointed cone
Shape setting, and the lateral wall of the shuttle shape axis (18) is circumferentially with several blades (19)；Above and below the central airway (17)
End is respectively equipped with the bearing block with the shuttle shape axis (18) cooperation, and each axle bed divides towards one end of the shuttle shape axis (18)
Not She You pyramidal pits, the tapers of the pyramidal pits is greater than the taper of pointed cone described in shuttle shape axis (18) both ends, and institute
State the bottom of tapered shaft and the pointed cone head fits of the shuttle shape axis (18)；The tapered shaft is close to the outer of arbitrary one end
Wall is also coaxially provided with the first bevel gear (22)；Desulfurization and denitrification reaction device (1) lateral wall is equipped with internally perforative axle sleeve, institute
It states axle sleeve and is internally prolonged positioned at the internal one end of the desulfurization and denitrification reaction device (1) by the through hole of the central airway (17)
It stretches；Coaxial nested equipped with transmission shaft (21) in the axle sleeve, the transmission shaft (21) is located at one in the central airway (17)
End is connected with the second bevel gear (23), second bevel gear (23) and the first bevel gear (22) engaged transmission；The transmission
Axis (21) is located at the one end of the desulfurization and denitrification reaction device (1) outside and connect with motor output shaft, and the motor passes through bracket and institute
Desulfurization and denitrification reaction device (1) outer wall is stated to be connected and fixed.
8. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 7, it is characterised in that: the central gas
Road (17) bottom is coaxially provided with pod (24), and interval is equipped between the pod (24) and the central airway (17), and
And the outer arc flange circumferentially arranged with turnup upward of pod (24) bottom.
9. a kind of boiler afterheat recovering device of desulphurization denitration according to claim 7, it is characterised in that: the transmission shaft
(21) it is connect with second bevel gear (23) by temperature control shaft coupling, the temperature control shaft coupling includes and the transmission shaft (21)
Axle sleeve far from the connection of motor one end coaxial rigid, and with second bevel gear (23) close to the transmission shaft (21) one end
Rigidly connected spindle nose, the coaxial nested setting of the spindle nose and the axle sleeve, and the spindle nose is far from second bevel gear
(23) one end be equipped with positioning head, the spindle nose be equipped with location hole corresponding with the positioning head, the positioning head with it is described fixed
Position hole passes through bearing fit；The spindle nose lateral wall is circumferentially with several arc bimetal leafs, the bimetal leaf arbitrary one
End is connected and fixed with the spindle nose lateral wall；The bimetal leaf is equipped with friction block, the friction far from one end of the spindle nose
Block and the axle sleeve inner sidewall frictional fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081336.XA CN109340800B (en) | 2018-09-17 | 2018-09-17 | Desulfurization and denitrification's boiler waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081336.XA CN109340800B (en) | 2018-09-17 | 2018-09-17 | Desulfurization and denitrification's boiler waste heat recovery device |
Publications (2)
| Publication Number | Publication Date |
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| CN109340800A true CN109340800A (en) | 2019-02-15 |
| CN109340800B CN109340800B (en) | 2019-12-20 |
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| CN201811081336.XA Active CN109340800B (en) | 2018-09-17 | 2018-09-17 | Desulfurization and denitrification's boiler waste heat recovery device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653182U (en) * | 2010-01-27 | 2010-11-24 | 梁利君 | Water-vapor mixer |
| JP2011161403A (en) * | 2010-02-12 | 2011-08-25 | Babcock Hitachi Kk | Catalytic reactor |
| CN103691312A (en) * | 2013-12-16 | 2014-04-02 | 张继惟 | Efficient secondary dust removal, desulfurization and denitrification integrated flue gas purification plant |
| CN107596798A (en) * | 2017-10-31 | 2018-01-19 | 中冶赛迪技术研究中心有限公司 | A kind of pre- dedusting and desulphurization and denitration integrated treatment unit and method |
-
2018
- 2018-09-17 CN CN201811081336.XA patent/CN109340800B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653182U (en) * | 2010-01-27 | 2010-11-24 | 梁利君 | Water-vapor mixer |
| JP2011161403A (en) * | 2010-02-12 | 2011-08-25 | Babcock Hitachi Kk | Catalytic reactor |
| CN103691312A (en) * | 2013-12-16 | 2014-04-02 | 张继惟 | Efficient secondary dust removal, desulfurization and denitrification integrated flue gas purification plant |
| CN107596798A (en) * | 2017-10-31 | 2018-01-19 | 中冶赛迪技术研究中心有限公司 | A kind of pre- dedusting and desulphurization and denitration integrated treatment unit and method |
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|---|---|
| CN109340800B (en) | 2019-12-20 |
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