CN206127345U - Hot -air pipes system with oneself compensation function - Google Patents
Hot -air pipes system with oneself compensation function Download PDFInfo
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- CN206127345U CN206127345U CN201621166012.2U CN201621166012U CN206127345U CN 206127345 U CN206127345 U CN 206127345U CN 201621166012 U CN201621166012 U CN 201621166012U CN 206127345 U CN206127345 U CN 206127345U
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Abstract
The utility model discloses a hot -air pipes system with oneself compensation function belongs to hot -blast furnace hot -air pipes technical field. The utility model discloses a vertical branch pipe unit, the horizontal branch pipe unit, the branch pipe positioning seat, hot -blast main pipe unit and bustle pipe, vertical branch pipe unit and horizontal branch pipe unit are fixed in on the branch pipe positioning seat, vertical branch pipe unit is linked together hot -blast furnace and horizontal branch pipe unit, vertical branch pipe unit includes steering joint and vertical branch pipe, the upper portion of vertical branch pipe is passed through steering joint and is linked to each other with the hot -blast furnace, be provided with the axial tension compensator on this vertical branch pipe, the lower part of vertical branch pipe links to each other with the horizontal branch pipe of horizontal branch pipe unit, be provided with crooked compensator and axial compression compensator on the horizontal branch pipe. The utility model discloses be provided with the axial tension compensator to junction at horizontal branch pipe and vertical branch pipe sets up crooked compensator, has effectively overcome blind plate power and interior thermal expansion displacement to the katogene of hot -air pipes system, has improved hot -air pipes's life.
Description
Technical field
The utility model is related to blast funnace hot blast stove hot air duct technical field, in particular, is related to a kind of with self
The hot air duct system of compensation function.
Background technology
Blast furnace ironmaking is the important step in iron and steel production, is also most widely used iron-smelting process, blast furnace production process
In load iron ore, coke, slag making with flux (lime stone) from furnace roof, be blown into along the air port in stove week from lower furnace preheated
Air.The carbon monoxide that carbon at high temperature in coke is generated with the oxygen burning blasted in air, will in uphill process in stove
Ferriferous oxide reduction in ore obtains molten iron.Blast furnace process needs the sufficiently high hot blast of temperature, the heat in blast furnace ironmaking process
Wind furnace can significantly improve the returns and efficiency of blast furnace blast heating is to desired temperature and blasts inside blast furnace.Hot-blast stove
Special hot air duct is needed to be conveyed during 1100-1250 DEG C of high-temperature hot-air is blasted into blast furnace, and one high
Stove is commonly equipped with 3-4 hot-blast stove group, and multiple hot-blast stoves just constitute high temperature, the high pressure of complexity during for blast furnace air feed
Hot air duct system.
Hot-blast main one end is connected with the multiple hot blast manifold vertical-horizontals of hot-blast stove group, and the other end connects with bustle pipe level
Connect, particularly top combustion stove hot-blast outlet position is higher, cause hot blast manifold position 5-8 rice higher than bustle pipe so that
With bustle pipe not in same level, the temperature compensation of whole hot blast piping and stopping means are arranged and compared hot-blast main
It is complicated.Hot-blast pressure in hot air duct is generally 0.30-0.45Mpa, and can produce huge blind plate in blind plate or elbow
Power, hot air duct and hot-blast stove also can expand during being heated, and blind flange force and thermal expansion displacement act on hot air duct.
In order to eliminate above-mentioned impact, the compensator of resistance to axial tension should be arranged to eliminate the heat such as hot-blast stove, hot blast manifold and hot-blast main
Expansion displacement, while there is provision of stopping means to overcome and limit the displacement that hot air duct cecum power is produced during air-supply.
Existing hot air duct system is difficult to effectively eliminate the displacement that the expansion displacement in the hot-blast stove course of work is produced with cecum power,
Easily cause three kinds of damages of hot air duct：1) hot air furnace hot air exports resistance to material and damages, and 2) hot blast manifold is connected with hot-blast main
The resistance to material in Y-pipe top is damaged, and 3) the resistance to material of vertical tube of hot-blast main's linking is damaged, and ultimately results in the above-mentioned position shell of wind pipeline
It is rubescent, split, have a strong impact on blast furnace safety production.Because the position of hot blast main pipe is higher, not easy care, in the operating mode of high wind-warm syndrome
Under, the own Jing of stability of hot air duct becomes an important technical task.
Jing is retrieved, and the technical scheme for having had correlation is disclosed.Innovation and creation it is entitled：Top combustion stove hot blast is conveyed
Pipe-line system (the patent No.：ZL201220647166.9, the day for announcing：2013-05-01), each top ignition hot blast of this application case
Hot blast in stove is first each after horizontal branch pipe, vertical contact arm, then is delivered in hot blast main pipe, its hinge structure
For, reduce the transport path that hot blast is flowed in blast furnace from each top combustion stove, it is to avoid hot blast conveying pipe road is long
And cause hot blast the local that the inwall of pipeline is produced is burnt it is red, fall brick, so as to improve the use longevity of hot blast conveying pipe road system
Life.Additionally, innovation and creation is entitled：Hot-blast main is with bustle pipe not in the warm-air pipe (patent No. of sustained height：
ZL200420006334.1, the day for announcing：2006-02-01), subject application elimination pipe temperature stress, compensation hot-blast furnace body,
The deformation of hot blast vertical tube and pipeline, eliminates cecum power, reduces the thrust to support of pipelines.Above-mentioned technical scheme, although one
Determine to be eliminated in degree the impact of the displacement that expansion displacement is produced with cecum power, but hot air duct system is complexity is
System, including the cooperation of multiple positions, pipeline UNICOM, during production and transportation high-temperature hot-air, not only pipeline can be subject to
Expansion displacement and cecum power are acted on, and the junction between hot-blast stove itself and hot air duct also can expanded by heating power and send out
Raw displacement and deformation；And existing technology is difficult to efficiently against the problem.
Utility model content
1. the utility model technical problem to be solved
The purpose of this utility model is to overcome hot air duct compensator in prior art to be difficult to effectively compensate warm-air pipe
The problem of the expansion displacement of the multi-form in road, there is provided a kind of hot air duct system with self-compensating function, the warm-air pipe
Road system effectively overcomes the destruction of blind flange force and thermal expansion displacement to hot air duct system, so as to improve hot blast
The service life of pipeline.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the utility model is provided is：
A kind of hot air duct system with self-compensating function of the present utility model, including vertically pipe unit, level
Pipe unit, arm positioning seat, hot-blast main's unit and bustle pipe are propped up, a described vertically pipe unit and horizontal branch pipe unit is solid
On arm positioning seat, the one end for vertically propping up pipe unit is connected with hot-blast stove, and vertically the other end of a pipe unit passes through water
A flat pipe unit is connected with hot-blast main's unit, and hot-blast main's unit is connected with bustle pipe；An above-mentioned vertically pipe unit
Including steering knuckle and vertical arm, the top of vertical arm is connected by steering knuckle with hot-blast stove, is set on the vertical arm
Axial tension compensator is equipped with, the bottom of described vertical arm is connected with the horizontal branch pipe of horizontal branch pipe unit, described water
Bending is provided with flat arm and compensator and is compressed axially compensator, the bending compensator and being compressed axially between compensator is arranged
There is hot-blast valve.
Preferably, described bending compensator includes outer tube, location-plate I, location-plate II, expansion link, mozzle I and water conservancy diversion
Pipe II；Mozzle I and mozzle II are provided with described outer tube, location-plate I and location-plate II are fixedly installed on the outer tube,
Described location-plate I and location-plate II is correspondingly arranged, and bellows, institute are provided with the outer tube between location-plate I and location-plate II
It is connected by expansion link between the location-plate I for stating and location-plate II；The two ends of expansion link are fixed on positioning by location nut
On plate I and location-plate II.
Preferably, the described location-plate I of bending compensator and the two ends of location-plate II is respectively arranged with concave spherical surface packing ring,
Convex spherical packing ring is provided between location nut and concave spherical surface packing ring；Described concave spherical surface packing ring spherical radius is more than convex spherical pad
The spherical radius of circle.
Preferably, the mozzle I of described bending compensator is provided with slip back-up ring away from one end end of mozzle II,
The slip back-up ring is slidably matched with outer tube wall, and described mozzle II is provided with fixed gear away from one end end of mozzle I
Circle, fixed back-up ring is fixedly connected with outer tube wall.
Preferably, the described compensator that is compressed axially is including outer tube, location-plate I, location-plate II, axial limiting bar and tapered
Mozzle, is provided with tapered mozzle in described outer tube, corresponding on described outer tube to be provided with location-plate I and location-plate
II, be provided with bellows on the outer tube between location-plate I and location-plate II, described axial limiting bar be installed on location-plate I and
On location-plate II, location nut is installed on the two ends end of axial limiting bar.
Preferably, the described tapered mozzle for being compressed axially compensator along air current flow direction cross-sectional area gradually
Reduce；One end end of the tapered mozzle is provided with slip back-up ring, and the slip back-up ring is slidably matched with outer tube wall, described
Tapered mozzle other end end is provided with fixed back-up ring, and fixed back-up ring is fixedly connected with outer tube wall.
Preferably, 2 positioning spiral shells are provided with the described axial limiting bar being compressed axially on the outside of the location-plate I of compensator
Cross spacing pad is provided between mother, and location nut and location-plate I；It is provided with the axial limiting bar in the outside of location-plate II
2 location nuts, are provided with cross spacing pad between location nut and location-plate II.
Preferably, hot-blast main's unit includes hot-blast main, and the hot-blast main is fixed on house steward's hold-down support, described
Hot-blast main is fixed by total tubular tie, and on the hot-blast main between described hot-blast stove and bustle pipe bending is provided with
Compensator and it is compressed axially compensator.
Preferably, it is provided with the hot-blast main between described hot-blast stove and hot-blast stove and is compressed axially compensator, be i.e. phase
It is provided with hot-blast main between adjacent hot-blast stove and is compressed axially compensator.
Preferably, refluence damping down pipe and mixing wind tube are provided with described hot-blast main.
3. beneficial effect
The technical scheme provided using the utility model, compared with prior art, is had the advantages that：
(1) a kind of hot air duct system with self-compensating function of the present utility model, by hot-blast stove and level
Prop up and arrange between pipe unit a vertically pipe unit, and axial tension compensator is provided with vertical arm, the axial tension is mended
Repaying device can realize axial extensional motion, so as to effectively prevent hot-blast stove to be heated the damage of " growing tall " to hot air duct；
(2) a kind of hot air duct system with self-compensating function of the present utility model, horizontal branch pipe is near vertical
The end of pipe is provided with bending compensator, and concave spherical surface packing ring and convex spherical pad are disposed between location nut and location-plate
Circle, convex spherical packing ring is engaged with concave spherical surface packing ring, and the spherical radius of convex spherical is less than the spherical radius of concave ball surfaces, convex
Shape sphere is engaged with concave ball surfaces so that bending compensator bends when power is squeezed, so as to eliminate the swollen of pipeline
Swollen displacement, so as to prevent hot air duct from damaging；
(3) a kind of hot air duct system with self-compensating function of the present utility model, horizontal branch pipe is near vertical
The end of pipe is provided with bending compensator, when there is the micro skew away from hot-blast stove in vertical arm top, top it is flexible
Bar forced compression, the expansion link stress stretching of bottom, along subjected to compressive forces on convex spherical packing ring and concave spherical surface packing ring
Move closer to, until convex spherical packing ring fits with concave spherical surface packing ring；The lower edge Tensile of convex spherical packing ring and concave spherical surface packing ring
The effect of power is gradually distance from so that bending compensator occurs micro arc-shaped bend, and it is micro partially to be combined with vertical arm generation
Move, compensate vertical arm and micro skew occurs, the damage for being effectively prevented the deformation of steering knuckle expanded by heating and causing；
(4) a kind of hot air duct system with self-compensating function of the present utility model, is compressed axially on compensator and sets
Tapered mozzle is equipped with, tapered mozzle is gradually reduced along the direction cross-sectional area of air current flow, and hot blast is in tapered mozzle
Middle to produce larger resistance, slip back-up ring is arranged at the side of air feed so that slip back-up ring is compressed along the flow direction of hot blast,
And larger pressure drop is produced compensator is compressed axially, so as to reduce hot blast to the blind flange force at pipeline turning, improve pipe
The service life in road；
(5) a kind of hot air duct system with self-compensating function of the present utility model, is provided with down on hot-blast main
Stream damping down pipe and mixing wind tube, when blast furnace staying is operated, flowing backwards damping down pipe can discharge the coal gas remained in blast furnace after damping down, make
The residual coal gas obtained in blast furnace just discharges out of the furnace without hot-blast stove, and the cold wind of cold air duct can be mixed into warm-air pipe by mixing wind tube
In road, so as to adjust pipeline in hot blast temperature.
Description of the drawings
Fig. 1 is the connection diagram of horizontal branch pipe unit of the present utility model and a vertically pipe unit；
Fig. 2 is overall structure diagram of the present utility model；
Fig. 3 is the structural representation of bending compensator of the present utility model；
Fig. 4 is the structural representation for being compressed axially compensator of the present utility model；
Fig. 5 is the structural representation of axial tension compensator of the present utility model.
Label declaration in accompanying drawing：
110th, hot-blast stove；120th, pipe unit is vertically propped up；121st, steering knuckle；122nd, vertical arm；130th, horizontal branch pipe list
Unit；131st, horizontal branch pipe；132nd, hot-blast valve；140th, arm positioning seat；150th, hot-blast main's unit；151st, hot-blast main；152、
House steward's hold-down support；153rd, total tubular tie；154th, damping down pipe is flow backwards；155th, mixing wind tube；160th, bustle pipe；210th, bending compensation
Device；220th, it is compressed axially compensator；230th, axial tension compensator；310th, location nut；320th, axial limiting bar；330th, it is tapered
Mozzle；340th, cross spacing pad；411st, location-plate I；412nd, location-plate II；421st, concave spherical surface packing ring；422nd, convex spherical pad
Circle；430th, expansion link；441st, mozzle I；442nd, mozzle II；510th, bellows；521st, slip back-up ring；522nd, fixed back-up ring.
Specific embodiment
Hereafter accompanying drawing with reference to the detailed description of exemplary embodiment of the present utility model, the accompanying drawing forms the one of description
Part, shows as an example in the figure the enforceable exemplary embodiment of the utility model.Although these exemplary realities
Apply example to be described in sufficient detail so that those skilled in the art can implement the utility model, it is to be understood that being capable of achieving it
His embodiment and can various changes can be made to the utility model in the case of without departing from spirit and scope of the present utility model.Cause
This, is hereafter not limited to required model of the present utility model to the more detailed description of embodiment of the present utility model
Enclose, and just to being illustrated and do not limit to the characteristics of the utility model and feature description, to propose to perform sheet
The best mode of utility model, and be sufficient so that those skilled in the art and can implement the utility model.So as to the utility model
Scope be defined solely by the appended claims.
Hereafter detailed description of the present utility model and example embodiment can be combined accompanying drawing to more fully understand, wherein this reality
Identified by reference with new element and feature.
Embodiment 1
As Figure 1-3, a kind of hot air duct system with self-compensating function of the present utility model, including vertical
Pipe unit 120, horizontal branch pipe unit 130, arm positioning seat 140, hot-blast main's unit 150 and bustle pipe 160, hot-blast stove
During 110 air feeds, hot blast vertically props up pipe unit 120, horizontal branch pipe unit 130 and enters hot-blast main by the Jing of hot-blast stove 110
Unit 150, and bustle pipe 160 is eventually entered into, described vertically a pipe unit 120 and horizontal branch pipe unit 130 is fixed on and props up
On pipe positioning seat 140；The one end for vertically propping up pipe unit 120 is connected with hot-blast stove 110, vertically the other end of a pipe unit 120
It is connected with hot-blast main's unit 150 by horizontal branch pipe unit 130, hot-blast main's unit 150 is connected with bustle pipe 160；
An above-mentioned vertically pipe unit 120 includes steering knuckle 121 and vertical arm 122, and the top of vertical arm 122 is connect by steering
121 are connected with hot-blast stove 110, axial tension compensator 230 are provided with the vertical arm 122, i.e., in vertical arm 122
Middle part arranges axial tension compensator 230, and the axial tension compensator 230 can realize the extensional motion of axial direction.Vertical arm 122
Bottom is fixed on arm positioning seat 140, so as to vertical arm 122 is positioned on arm positioning seat 140.The vertical arm
122 bottom is connected with the horizontal branch pipe 131 of horizontal branch pipe unit 130, and bending compensation is provided with described horizontal branch pipe 131
Device 210 and compensator 220 is compressed axially, the bending compensator 210 and is compressed axially between compensator 220 and is provided with hot-blast valve
132, hot-blast valve 132 is used to control being turned on and off for hot air duct.It is close that bending compensator 210 is arranged at horizontal branch pipe 131
Vertically the end of arm 122, will bend the level that compensator 210 is arranged at horizontal branch pipe 131 and the junction of vertical arm 122
On arm 131.
Hot-blast main's unit 150 of the present embodiment includes hot-blast main 151, and the hot-blast main 151 is fixed on house steward and is fixed
On bearing 152, the hot-blast main 151 is fixed by total tubular tie 153, described hot-blast stove 110 and bustle pipe 160 it
Between hot-blast main 151 on be provided with bending and compensator 210 and be compressed axially compensator 220, the bending compensator 210 is by making
Compensator bends and eliminates expansion displacement, is compressed axially compensator 220 and shortens elimination expansion displacement by forced compression.
It is provided with hot-blast main 151 between the hot-blast stove 110 and hot-blast stove 110 of the present embodiment and is compressed axially compensator
220.Refluence damping down pipe 154 and mixing wind tube 155 are provided with described hot-blast main 151.Wherein, when blast furnace staying is operated,
Stream damping down pipe 154 can discharge the coal gas remained in blast furnace after damping down so that the residual coal gas in blast furnace is without hot-blast stove
110 just discharge out of the furnace.Mixing wind tube 155 can be mixed into the cold wind of cold air duct in hot air duct, so as to adjust pipeline in heat
Air temperature.
The bending compensator 210 of the present embodiment includes outer tube, location-plate I411, location-plate II 412, expansion link 430, water conservancy diversion
Pipe I 441 and mozzle II 442；Mozzle I 441 and mozzle II 442 are provided with described outer tube, fixation on the outer tube sets
Location-plate I411 and location-plate II 412 are equipped with, described location-plate I411 and location-plate II 412 is correspondingly arranged, location-plate I411
And bellows 510 is provided with the outer tube between location-plate II 412, the bellows 510 is set to 2, and two bellowss 510
It is symmetrical arranged with regard to symmetry axis I211, causes bending compensator 210 curved in generation because bellows 510 is arranged with regard to Central Symmetry
When in bent process, case of bending is also with regard to symmetry axis I211 axisymmetricly states.
It is connected by expansion link 430 between the location-plate I411 and location-plate II 412 of the present embodiment, wherein expansion link
430 have Telescopic；The two ends of expansion link 430 are fixed on location-plate I411 and location-plate II 412 by location nut 310
On.The two ends of location-plate I411 and location-plate II 412 are respectively arranged with concave spherical surface packing ring 421, location nut 310 and concave spherical surface pad
Convex spherical packing ring 422 is provided between circle 421；Ball of the described spherical radius of concave spherical surface packing ring 421 more than convex spherical packing ring 422
Radius surface.As shown in figure 3, the side away from bellows 510 of location-plate I411 is provided with location nut 310, the location nut
310 are set to 2, and concave spherical surface packing ring 421 and convex spherical packing ring are disposed between location nut 310 and location-plate I411
422, described convex spherical packing ring 422 is engaged with concave spherical surface packing ring 421；Wherein to be that side is provided with recessed for concave spherical surface packing ring 421
The packing ring of shape sphere, its side is concave side, and in the concave side concave ball surfaces are provided with；Described concave spherical surface packing ring 421 with it is recessed
The side that surface side mutually deviates from is planar side, and planar side and the location-plate I411 of concave spherical surface packing ring 421 fit；Above-mentioned convex spherical pad
The side that circle 422 is engaged with concave side is the convex side of convex spherical packing ring 422, and convex spherical is provided with convex side, and convex
The spherical radius of shape sphere is less than the spherical radius of concave ball surfaces, and convex spherical is engaged with concave ball surfaces so that bending compensation
Device 210 bends when power is squeezed, so as to eliminate the expansion displacement of pipeline；Described convex spherical packing ring 422 is near fixed
The side of position nut 310 is planar side, and planar side and the location nut 310 of convex spherical packing ring 422 fit, and planar side is set to
Plane with fit with location nut 310, desirably prevent the location nut 310 to loosen, so that location nut 310
It is spacing more firm.
Above-mentioned mozzle I 441 and mozzle II 442 is symmetrical arranged, and sets between mozzle I 441 and mozzle II 442
Gap is equipped with, is conducive to mozzle I 441 and mozzle II 442 to bend.Mozzle I 441 away from mozzle II 442 one
End end is provided with slip back-up ring 521, and slip back-up ring 521 is arranged at the fixed side near hot-blast stove 110, that is, slide back-up ring
521 sides for being arranged at the air feed of hot-blast stove 110, the slip back-up ring 521 is slidably matched with outer tube wall, described mozzle II
442 are provided with fixed back-up ring 522 away from one end end of mozzle I 441, and fixed back-up ring 522 is fixedly connected with outer tube wall.Fixed
Position plate I411 be squeezed power extrude when, when mozzle I 441 and mozzle II 442 be squeezed power be bent upwards when (wherein upwards
Position relationship be Fig. 3 in position relationship), now top the stress of expansion link 430 stretching, the stress of expansion link 430 of bottom
Compression, convex spherical packing ring 422 is subjected to compressive forces with the lower edge of concave spherical surface packing ring 421 to be moved closer to, until convex spherical pad
Circle 422 fits with concave spherical surface packing ring 421；On convex spherical packing ring 422 and concave spherical surface packing ring 421 along tension stretch effect by
Gradually away from so that bending compensator 210 occurs arc-shaped bend, the phase interworking of convex spherical packing ring 422 and concave spherical surface packing ring 421
Conjunction is conducive to bending compensator 210 to bend, and eliminates the expansion displacement of pipeline.
Additionally, top combustion stove 110 easily occurs expanded by heating and " growing tall " after being heated, hot-blast stove is now just easily caused
110 there is relative displacement with the junction of vertical arm 122, and relative displacement causes the company of vertical arm 122 and horizontal branch pipe 131
Larger stress is produced at the steering knuckle 121 for connecing and damage；Existing technical staff, in order to eliminate the expansion displacement in pipeline,
Various compensators are typically arranged at the middle part of pipeline.Jing is retrieved, and existing related technical staff has paid close attention to the technical problem,
And applied for patent：A kind of rectilinear hot blast manifold structure (patent No. with mixing wind tube of top combustion stove：
ZL201520538216.3, authorized announcement date：2015-12-30, patentee：Wang Changchun), it is in hot blast manifold vertical section
Axial compensator is installed, so as to eliminating hot-blast stove 110 to a certain extent and expanding " growing tall " is used to vertical arm 122 longevity
The impact of life.But, further investigation revealed that, although the technology improves to a certain extent service life, still
Easily cause vertical arm 122 to damage, the technical barrier annoyings always technical staff, technical staff does not understand after repeated thinking.
Find that the top of vertical arm 122 is connected by steering knuckle 121 with hot-blast stove 110 by prolonged research,
Steering knuckle 121 can equally occur expanded by heating during logical hot blast, and because steering knuckle 121 is case of bending, it is received
Prolongation displacement during thermal expansion is more complicated, not only can produce along vertical direction deformation, and can produce along horizontal direction
Deformation, and vertically the bottom of arm 122 is fixed on arm positioning seat 140, and this results in the top of vertical arm 122 and hot-blast stove
110 distance and bottom are different from the generation of the distance of hot-blast stove 110 so that vertically arm 122 produces one relative to vertical direction
There is the micro skew away from hot-blast stove 110 in fixed angle skew, i.e., the vertical top of arm 122；Additionally, the vertical bottom of arm 122
The end at end can equally occur expanded by heating and produce micro displacement during being heated；Above-mentioned various thermal deformations
Deformation direction is interlaced, although the relative displacement very little of thermal deformation, but be enough in vertical arm 122 and horizontal branch pipe 131
Junction produces stress and causes hot air duct to damage；Above-mentioned patent application (a kind of top combustion stove with mixing wind tube
Rectilinear hot blast manifold structure, ZL201520538216.3) although eliminating the relative displacement on vertically to a certain extent,
It is difficult to effectively eliminate the problem.
Therefore the creative proposition of the utility model sets in horizontal branch pipe 131 near the connection end end of vertical arm 122
Bending compensator 210 is put, when the top of vertical arm 122 occurs the micro skew away from hot-blast stove 110, on (as shown in Figure 3)
The forced compression of expansion link 430 in portion, the stress of expansion link 430 stretching of bottom, convex spherical packing ring 422 and concave spherical surface packing ring 421
On move closer to along subjected to compressive forces, until convex spherical packing ring 422 fits with concave spherical surface packing ring 421；Convex spherical pad
Circle 422 is gradually distance from the effect of the lower edge tension stretch of concave spherical surface packing ring 421 so that bending compensator 210 occurs micro
Arc-shaped bend, and be combined with vertical arm 122 micro skew occurs, there is micro skew so as to compensate vertical arm 122, effectively
Prevent the expanded by heating of steering knuckle 121 from deforming and the damage that causes.Additionally, bending compensator 210 offsets up and is conducive to disappearing
Except the expansion displacement at the bottom of vertical arm 122 and arm positioning seat 140, so as to the expansion for effectively eliminating the junction is damaged
It is bad.
Embodiment 2
As shown in figure 4, the present embodiment be compressed axially compensator 220 including outer tube, location-plate I411, location-plate II 412,
Axial limiting bar 320 and tapered mozzle 330, are provided with tapered mozzle 330 in outer tube, tapered mozzle 330 is along air-flow
The direction cross-sectional area of flowing is gradually reduced；One end end of the tapered mozzle 330 is provided with slip back-up ring 521, the slip
Back-up ring 521 is slidably matched with outer tube wall, and the slip back-up ring 521 is arranged at the weather side of the side of air feed, i.e. hot blast, tapered to lead
The other end end of flow tube 330 is provided with fixed back-up ring 522, and fixed back-up ring 522 is fixedly connected with outer tube wall.
The present embodiment be compressed axially it is corresponding on the outer tube of compensator 220 be provided with location-plate I411 and location-plate II 412,
Described location-plate I411 and location-plate II 412 is annular；Arrange on outer tube between location-plate I411 and location-plate II 412
There is bellows 510；Above-mentioned axial limiting bar 320 is installed on location-plate I411 and location-plate II 412, axial limiting bar 320
Two ends end on location nut 310 is installed, i.e., in the axial limiting bar 320 in location-plate I411 and the outside of location-plate II 412
On location nut 310 is installed, it is fixed for limiting location-plate I411 and location-plate II 412 towards moving in the direction away from each other
Position plate I411 and location-plate II 412 axially gag lever post 320 can be moved towards direction close to each other, and above-mentioned outside is fixed
The side that position plate I411 and location-plate II 412 mutually deviate from, inner side is side close to each other.Described location-plate I411
2 location nuts 310 are provided with the axial limiting bar 320 in outside, and are provided between location nut 310 and location-plate I411
Cross spacing pad 340；2 location nuts 310, location nut are provided with the axial limiting bar 320 in the outside of location-plate II 412
Cross spacing pad 340 is provided between 310 and location-plate II 412.Hot blast flows into tapered mozzle during hot blast air feed
330, because the cross-sectional area of tapered mozzle 330 is gradually reduced, hot blast produces larger resistance in tapered mozzle 330, and
And slip back-up ring 521 is arranged at the side of air feed so that slip back-up ring 521 is compressed along the flow direction of hot blast, and in axial direction
Compression compensation device 220 produces larger pressure drop, hot blast is reduced to the blind flange force at pipeline turning, so as to efficiently reduce
The damaged condition of hot air duct, improves the service life of pipeline.The two ends of described axial limiting bar 320 are provided with location nut
310, because hot-blast stove 110 is in an air feed, the alternation procedure of accumulation of heat, often to complete damping down, an air feed process, it is compressed axially
Compensator 220 all can complete to compress the cyclic process restored again, and collision will certainly be produced to location nut 310 during this,
This small collision easily causes location nut 310 with location-plate I411 or location-plate II 412 produces loosening.
The axial limiting bar 320 of the present embodiment is provided with 2 location nuts 310 near location-plate I411 sides, and positions
It is provided with cross spacing pad 340 between nut 310 and location-plate I411, described cross spacing pad 340 and location-plate
I411 is brought into close contact；Described axial limiting bar 320 is provided with 2 location nuts 310 near the side of location-plate II 412, and fixed
Cross spacing pad 340 is provided between position nut 310 and location-plate II 412, described cross spacing pad 340 and location-plate
II 412 are brought into close contact.Cross spacing pad 340 reduces the collision produced to location nut 310 during accumulation of heat, air feed, from
And collision of the impulsive force to location nut 310 is reduced, and due to being provided with 2 location nuts 310, the positioning spiral shell in outside
Female 310 stress of location nut 310 skews for limiting inner side；Even if when the location nut 310 of inner side loosens, outside
Location nut 310 still has preferably positioning and position-limiting action, so as to effectively ensureing location nut 310 to location-plate I411 and determining
The position fixed effect of plate II 412.
Embodiment 3
As shown in figure 5, the axial tension compensator 230 of the present embodiment include outer tube, location-plate I411, location-plate II 412,
Axial limiting bar 320 and tapered mozzle 330, are provided with tapered mozzle 330 in described outer tube, the tapered mozzle 330
Direction cross-sectional area along air current flow is gradually reduced, i.e., cross section of the tapered mozzle 330 near the side of hot-blast stove 110
Cross-sectional area of the product more than the side away from hot-blast stove 110.One end end of tapered mozzle 330 is provided with slip back-up ring 521,
Slip back-up ring 521 be arranged at the side of hot blast air feed, hot-blast stove air feed during tapered mozzle 330 along air current flow
Direction cross-sectional area is gradually reduced so that axial tension compensator 230 produces larger resistance, and slip back-up ring 521 receives thermal air pressure
To the fixed lateral movement of back-up ring 522 1, i.e., cross-sectional area of the tapered mozzle 330 near the side of slip back-up ring 521 in the presence of power
More than near the side of fixed back-up ring 522；So as to produce larger pressure drop in axial tension compensator 230, so as to reduce
Hot blast reduces damage of the blind flange force to vertical arm 122 and the junction of horizontal branch pipe 131 to the blind flange force at pipeline turning；
The slip back-up ring 521 is slidably matched with outer tube wall, and the described other end end of tapered mozzle 330 is provided with fixed back-up ring
522, fixed back-up ring 522 is fixedly connected with outer tube wall.
It is corresponding on the outer tube of this enforcement to be provided with location-plate I411 and location-plate II 412, location-plate I411 and location-plate
Bellows 510 is provided with outer tube between II 412, axial limiting bar 320 is installed on location-plate I411 and location-plate II 412
On, be provided with location nut 310 on the axial limiting bar 320 of location-plate I411 and the inner side of location-plate II 412, location-plate I411 and
Location-plate II 412 can axially gag lever post 320 towards moving in the direction away from each other, i.e., axial tension compensator 230 can only
Produce extensional motion.Be provided with location nut 310 on axial limiting bar 320 on the inside of location-plate I411, and location nut 310 with
Cross spacing pad 340 is provided between location-plate I411；Positioning is set on the axial limiting bar 320 of the inner side of location-plate II 412
Nut 310, is provided with cross spacing pad 340 between location nut 310 and location-plate II 412.
Due to being provided with axial tension compensator 230 on vertical arm 122, hot-blast stove 110 is easily heated after being heated
Expansion and after " growing tall ", location-plate I411 and location-plate II 412 can axially gag lever post 320 towards transporting in the direction away from each other
It is dynamic, so as to compensate the length of hot air duct, prevent vertical arm 122 from relative displacement occurring with hot-blast stove 110 and stress damage is produced
It is bad.
More specifically, although here has been described with exemplary embodiment of the present utility model, the utility model is simultaneously
These embodiments are not limited to, but are repaiied according to the process that detailed description above can be appreciated that including those skilled in the art
Change, omit, any and whole embodiments of (such as between each embodiment) combination, adaptive change and/or replacement.Right
Restriction in requirement can widely be explained according to the language used in claim, and be not limited in foregoing detailed description
In or the example that describes during this application is implemented, these examples are considered as nonexcludability.For example, in the utility model
In, term " preferably " not exclusively, here it means that " preferably, but be not restricted to that ".Where method in office or
Any step enumerated in process claims can in any order perform and be not limited to the order proposed in claim.
Therefore, scope of the present utility model only should determine by claims and its legal equivalents, rather than by giving above
The explanation that goes out and example are determining.
Claims (10)
1. a kind of hot air duct system with self-compensating function, it is characterised in that：Including vertically pipe unit (120), water
Flat pipe unit (130), arm positioning seat (140), hot-blast main's unit (150) and bustle pipe (160), described vertically props up
Pipe unit (120) and horizontal branch pipe unit (130) are fixed on arm positioning seat (140), and this vertically props up the one of pipe unit (120)
End is connected with hot-blast stove (110), vertically props up the other end of pipe unit (120) by horizontal branch pipe unit (130) and hot-blast main
Unit (150) is connected, and hot-blast main's unit (150) is connected with bustle pipe (160)；
An above-mentioned vertically pipe unit (120) includes steering knuckle (121) and vertical arm (122), vertical arm (122) it is upper
Portion is connected by steering knuckle (121) with hot-blast stove (110), and on the vertical arm (122) axial tension compensator is provided with
(230) bottom of, described vertical arm (122) is connected with the horizontal branch pipe (131) of horizontal branch pipe unit (130), described
Bending compensator is provided with horizontal branch pipe (131) and (210) and is compressed axially compensator (220), the bending compensator (210) and
It is compressed axially between compensator (220) and is provided with hot-blast valve (132).
2. a kind of hot air duct system with self-compensating function according to claim 1, it is characterised in that：Described
Bending compensator (210) including outer tube, location-plate I (411), location-plate II (412), expansion link (430), mozzle I (441) and
Mozzle II (442)；Mozzle I (441) and mozzle II (442) are provided with described outer tube, are fixedly installed on the outer tube
There are location-plate I (411) and location-plate II (412), described location-plate I (411) and location-plate II (412) is correspondingly arranged, position
It is provided with bellows (510) on outer tube between plate I (411) and location-plate II (412), described location-plate I (411) and positioning
It is connected by expansion link (430) between plate II (412)；It is fixed that the two ends of expansion link (430) are fixed on by location nut (310)
On position plate I (411) and location-plate II (412).
3. a kind of hot air duct system with self-compensating function according to claim 2, it is characterised in that：Described
The location-plate I (411) of bending compensator (210) and the two ends of location-plate II (412) are respectively arranged with concave spherical surface packing ring (421),
Convex spherical packing ring (422) is provided between location nut (310) and concave spherical surface packing ring (421).
4. a kind of hot air duct system with self-compensating function according to claim 3, it is characterised in that：Described
The mozzle I (441) of bending compensator (210) is provided with slip back-up ring (521) away from one end end of mozzle II (442),
The slip back-up ring (521) is slidably matched with outer tube wall, one end end of described mozzle II (442) away from mozzle I (441)
Portion is provided with fixed back-up ring (522), and fixed back-up ring (522) is fixedly connected with outer tube wall.
5. a kind of hot air duct system with self-compensating function according to any one of claim 1-4, its feature exists
In：Described is compressed axially compensator (220) including outer tube, location-plate I (411), location-plate II (412), axial limiting bar
(320) and tapered mozzle (330), tapered mozzle (330) is provided with described outer tube, it is corresponding on described outer tube to set
Location-plate I (411) and location-plate II (412) are equipped with, are provided with the outer tube between location-plate I (411) and location-plate II (412)
Bellows (510), described axial limiting bar (320) is installed on location-plate I (411) and location-plate II (412), axial limiting
Location nut (310) is installed on the two ends end of bar (320).
6. a kind of hot air duct system with self-compensating function according to claim 5, it is characterised in that：Described
The tapered mozzle (330) for being compressed axially compensator (220) is gradually reduced along the direction cross-sectional area of air current flow；This is tapered
One end end of mozzle (330) is provided with slip back-up ring (521), and the slip back-up ring (521) is slidably matched with outer tube wall, institute
Tapered mozzle (330) other end end stated is provided with fixed back-up ring (522), and fixed back-up ring (522) is mutually solid with outer tube wall
Even.
7. a kind of hot air duct system with self-compensating function according to claim 5, it is characterised in that：Described
It is compressed axially on the axial limiting bar (320) on the outside of the location-plate I (411) of compensator (220) and is provided with 2 location nuts
(310), and between location nut (310) and location-plate I (411) it is provided with cross spacing pad (340)；Location-plate II (412)
Be provided with 2 location nuts (310) on the axial limiting bar (320) in outside, location nut (310) and location-plate II (412) it
Between be provided with cross spacing pad (340).
8. a kind of hot air duct system with self-compensating function according to claim 7, it is characterised in that：Hot blast is total
Pipe unit (150) includes hot-blast main (151), and the hot-blast main (151) is fixed on house steward's hold-down support (152), described
Hot-blast main (151) is fixed by total tubular tie (153), between described hot-blast stove (110) and bustle pipe (160)
Bending compensator (210) is provided with hot-blast main (151) and compensator (220) is compressed axially.
9. a kind of hot air duct system with self-compensating function according to claim 8, it is characterised in that：Adjacent
It is provided with hot-blast main (151) between hot-blast stove (110) and is compressed axially compensator (220).
10. a kind of hot air duct system with self-compensating function according to claim 9, it is characterised in that：It is described
Hot-blast main (151) on be provided with refluence damping down pipe (154) and mixing wind tube (155).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621166012.2U CN206127345U (en) | 2016-10-31 | 2016-10-31 | Hot -air pipes system with oneself compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621166012.2U CN206127345U (en) | 2016-10-31 | 2016-10-31 | Hot -air pipes system with oneself compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206127345U true CN206127345U (en) | 2017-04-26 |
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ID=58575046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621166012.2U Expired - Fee Related CN206127345U (en) | 2016-10-31 | 2016-10-31 | Hot -air pipes system with oneself compensation function |
Country Status (1)
| Country | Link |
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| CN (1) | CN206127345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337100A (en) * | 2016-10-31 | 2017-01-18 | 马鞍山钢铁股份有限公司 | Hot air pipeline system with self compensation function |
-
2016
- 2016-10-31 CN CN201621166012.2U patent/CN206127345U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337100A (en) * | 2016-10-31 | 2017-01-18 | 马鞍山钢铁股份有限公司 | Hot air pipeline system with self compensation function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 |