Walking beam heating furnace vaporizing cooling systerm rotary joint subassembly
Technical field
The utility model relates to a kind of pipe joint technical field, particularly a kind of in Ferrous Metallurgy the walking beam heating furnace vaporizing cooling systerm rotary joint subassembly that is connected between step rate and the fixing external pipe of heating furnace.
Background technology
The heating furnace step rate is wanted periodically to finish continually to rise and one is advanced and one descend and one retreat four actions, thus walking beam heating furnace to adopt the key of vaporization cooling be to solve the step rate of motion and the connection between the fixing external pipe; Must adopt active joint (being swivel joint) withstand voltage, heat-resisting, that do not leak.By adopting different walking beam heating furnace vaporizing cooling systerm rotary joint subassemblies, several swivel joints are connected the connection between the step rate of realization motion and the fixing external pipe.
The metal hose that is connected with between the step rate of present existing walking beam heating furnace and the fixing external pipe connects, and by connected modes such as rotary joint assemblies.
When adopting metal hose to connect, metal hose one end is connected with the external pipe of fixing, and the other end is connected with the step rate furnace bottom tube connector of motion.Medium is a steam water interface in the evaporated cooling system pipe, and it is strong to have a pulsatile impact, characteristics such as flowing instability.To form one section sagging flexible pipe in the middle of when metal hose connects, because the restriction of metal hose structure, lower limit to the bending radius of sagging flexible pipe has certain requirement, and for satisfying the bending radius requirement of metal hose, the length of metal hose and occupation space are all bigger.According to the walking beam heating furnace step distance, metal hose length can reach more than 6 meters, and metal hose local height difference can reach more than 2 meters, and the acute variation that steam water interface flows in metal hose easily causes the pulsatile impact to tube wall.Metal hose is with respect to swivel joint heatproof, withstand voltage lower, phenomenons such as tube wall is subjected to easily producing bulge behind the pulsatile impact of steam water interface, leaks vapour, leaks, vapour locking, water attack.
And existing walking beam heating furnace adopts the rotary joint assembly connected mode more, general three swivel joints and the some straight lengths of adopting interconnects the composition rotary joint assembly, and the rotary joint assembly two ends are connected with the external pipe of fixing with the step rate of walking beam heating furnace respectively.
Because the rotary joint assembly of existing design is huge, straight length is longer, the rotary joint assembly bracketed part, and the straight length of swivel joint and middle swivel joint need constant force spring hanging frame to support in the middle of promptly connecting, and can't arrange in the space that the heating-furnace bottom is divided.The bracketed part of rotary joint assembly, the straight length of swivel joint and the outside that middle swivel joint can only be arranged in heating furnace civil engineering supporting construction in the middle of promptly connecting, cause tube connector long like this, make that the swivel joint movement locus is restive, so that existing rotary joint assembly easily produces vapour with Louing, leaks, and overhauls problems such as inconvenience.
This shows, in syndeton between the step rate of above-mentioned existing walking beam heating furnace and the fixing external pipe and the use, obviously still have inconvenience and defective, and demand urgently further being improved.The problem that exists for the connection between the step rate that solves walking beam heating furnace and the fixing external pipe, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have suitable structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the connection between the step rate of above-mentioned existing walking beam heating furnace and the fixing external pipe exists, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of walking beam heating furnace vaporizing cooling systerm rotary joint subassembly of new structure, can improve the step rate of general existing walking beam heating furnace and the connection between the fixing external pipe, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
The purpose of this utility model is, overcome the defective that the connection between existing heating furnace step rate and the fixing external pipe exists, and a kind of new structure is provided advance walking beam heating furnace evaporated cooling system rotary joint assembly, technical problem to be solved is to make it that connected mode between a kind of step rate that solves motion and the fixing external pipe is provided, and adopt swivel joint withstand voltage, heat-resisting, that do not leak, improve the life-span of swivel joint, thereby be suitable for practicality more.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of walking beam heating furnace vaporizing cooling systerm rotary joint subassembly that the utility model proposes, comprise swivel joint, tube connector, flange, location-plate, it comprises: the two ends of one section S type tube connector two ends and one section U type tube connector are connected an end of three swivel joints (1), (2), (3) respectively by flange, wherein the other end of swivel joint (1) is connected to the upper header location-plate that is fixed on movable step rate upper header by flange; The other end of swivel joint (3) is connected to the lower collecting box location-plate that is fixed on the step rate lower collecting box by flange; S type tube connector is connected with U type tube connector by swivel joint (2), and makes the junction of S type tube connector and one section U type tube connector form changeable angle; And the both sides on described U type tube connector are provided with the roller bearing guider respectively.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid rotary joint assembly, wherein said roller bearing guider is provided with the roller bearing leading truck, wherein this leading truck connects guide plate respectively by the two ends of seamless steel pipe device and forms the ㄩ shape, one end guide plate is installed between the curved end of end swivel joint and S type tube connector, other end guide plate is connected with U type tube connector, is provided with roller bearing in this junction.
Aforesaid rotary joint assembly, installing suspention counter weight device on the S type is taken over wherein, it comprises back-moving spring assembly that the spring upper end connects successively, spends blue bolt, axle head head; Described axle head head is connected to the location-plate of step rate upper header by connected bearing, and the back-moving spring assembly that is connected with the spring lower end is connected to S type tube connector by connected steel plate.
Aforesaid rotary joint assembly, its medi-spring upper/lower terminal is connected with the back-moving spring assembly, and shrink gradually at the two ends of this spring and the curved surface of the descending gradual change of diameter that forms with the back-moving spring assembly is closely connected.
Aforesaid rotary joint assembly, its medi-spring upper/lower terminal can adopt welding or solid lock set to be connected with back-moving spring assembly up and down.
Aforesaid rotary joint assembly wherein is provided with SW with outside ring in the junction of swivel joint and flange.
By technique scheme, make the present invention's rotary joint assembly of uniting have tangible technological progress, the present invention has following advantage at least:
1, walking beam heating furnace vaporizing cooling systerm rotary joint subassembly is rational in infrastructure, the control of swivel joint movement locus accurately, the suffered additional force of swivel joint is less, has avoided swivel joint to produce unsafe factors such as leakage because of the modular construction problem, makes whole system safe and reliable.
2, the walking beam heating furnace vaporizing cooling systerm rotary joint subassembly load is light, and resistance is little, has reduced the wearing and tearing of moving components such as swivel joint, has prolonged the service life of walking beam heating furnace evaporated cooling system.
3, walking beam heating furnace vaporizing cooling systerm rotary joint subassembly compact conformation, rationally distributed, the floor space of the external pipe header that has reduced the step rate pipeline header of motion and fixed and height, occupying little space, is again to adopt universal component to be connected, and convenient maintenance is changed.
4, rotary joint assembly all is integrated between the step rate upper header of fixing step rate lower collecting box and activity, has reduced the tube connector of rotary joint assembly body.Adopt this rotary joint assembly, just the upper and lower header of step rate can be arranged in walking beam heating furnace movable frame below, also reduced the tube connector between heating furnace step rate and header.Reduced the pipeline investment.
In sum, the walking beam heating furnace vaporizing cooling systerm rotary joint subassembly of special construction of the present invention, safety, reliability service occupy little space, and load is light.Improve the service life of walking beam heating furnace evaporated cooling system, convenient for maintaining reduces investment.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and the syndeton between the step rate of more existing walking beam heating furnace and the fixing external pipe has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 shows the cutaway view of walking beam heating furnace vaporizing cooling systerm rotary joint subassembly.
Fig. 2 shows the structural representation of the roller bearing guider 9 of Fig. 1.
Fig. 3 shows the partial enlarged drawing of Fig. 2 roller bearing internal structure.
Fig. 4 shows the structural representation of the roller bearing guider 10 of Fig. 1.
Fig. 5 shows the cutaway view of swivel joint, wherein shows the swivel joint angular displacement.
Fig. 6 shows the side view of walking beam heating furnace vaporizing cooling systerm rotary joint subassembly, and has provided the movement locus of step rate upper header swivel joint 1 moving point.
The structural representation of the suspention counter weight device that Fig. 7 shows.
Fig. 8 shows walking beam heating furnace vaporizing cooling systerm rotary joint subassembly in the displacement of finishing moving point under four different conditions that rise-advance-descend-retreat, and tube connector variable angle schematic diagram.
1,2,3: swivel joint 4,5: location-plate
6: flange 7:S type tube connector
8:U type tube connector 9,10: roller bearing guider
11: suspention counter weight device 12: pad
13: step rate lower collecting box 14: the step rate upper header
102,104: guide plate 103: the seamless steel pipe device
114,115,116: screw 106: bolt
15: roller bearing 105: axle sleeve
108,109,110,112: back-up ring 111: bearing
113: pin 314: spring
302: bearing 303: back-up ring
304,307: nut 305,313: split pin
306: axle head head 308: spend blue bolt
309: go up back-moving spring assembly 315: strain spring assembly down
310: packing ring 311: spring washer
312: nut
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of walking beam heating furnace vaporizing cooling systerm rotary joint subassembly, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
See also shown in Figure 1, show between the step rate upper header of activity and fixing step rate lower linked box and form by swivel joint, flange, connection adapter, location-plate serial connection all-in-one-piece connecting pipe, can avoid rotary joint assembly too huge like this, tube connector is long.In the utility model, one section S type of three swivel joints, 1,2,3 usefulness tube connector 7 and one section U type tube connector 8 are connected by flange, wherein an end of swivel joint 1 is connected to the upper header location-plate 5 that is fixed on movable step rate upper header 14 by flange 6, be tightly connected simultaneously, be provided with SW with outside ring 12 between the flange with the sealing between the assurance flange in order to form between the flange that makes swivel joint 1 and the flange 6.The other end of swivel joint 1 is connected with S type tube connector 7 by flange, when step rate upper header 14 drove the swivel joint 1 that is fixed on the upper header location-plate 5 and moves, S type tube connector 7 rotated around the axis of swivel joint 1 at the adpting flange place with swivel joint 1.
Please consult shown in Figure 1 again, roller bearing guider 9,10 is set on U type tube connector, the tube connector elbow that connects swivel joint 2,3 one ends by roller bearing guider 9,10 respectively, the other end of swivel joint 2 is connected with an end of S type tube connector by flange 6, and the other end of swivel joint 3 is connected on the location-plate 4 that is fixed on fixing step rate lower collecting box 13 by flange 6.
See also the roller bearing guider 9 that Fig. 2 illustrates, this roller bearing guider 9 connects guide plate 102,104 respectively to form the ㄩ shape by the two ends of seamless steel pipe device 103, one end guide plate 102 usefulness screws 115,116 are installed between the curved end of end swivel joint 2 and S type tube connector 7, other end guide plate 104 is connected with U type tube connector by bolt 106, wherein is provided with roller bearing 15 in the junction.
See also the partial enlarged drawing that Fig. 3 shows Fig. 2 roller bearing 15 structures, axle sleeve 105 is set on the roller bearing 15 and is formed with certain interval, wherein in the gap, be equipped with back-up ring 108,109, bearing 111 and be set on the roller bearing 15 from left to right successively, and for preventing that this bearing 111 from producing left and right displacement and being provided with back-up ring 110,112 respectively at two ends, bearing 111 left and right sides in motion process, back-up ring 112 is installed in an end of roller bearing 15 by pin 113, screw 114, the feasible like this pipeline with roller bearing 15 junctions only can rotate in roller bearing, can not move radially.See also the schematic diagram that Fig. 4 shows roller bearing guider 10, the guide plate 204 of these guider 10 1 ends is connected with U type tube connector, wherein is provided with roller bearing 15 in the junction, and its structure and Fig. 3 are described consistently no longer carefully to be stated.And be fastened on the step rate lower collecting box 13 by the structural member that steel plate is welded into, other end location-plate 4 is fixed on the swivel joint.The motion mode of control swivel joint 2,3 under the effect of roller bearing guider 9,10 only can rotate swivel joint around the swivel joint axis, and angular displacement can not take place.See also the angular displacement that shows swivel joint 2,3 as shown in Figure 5, only can rotate around the swivel joint axis down the spacing of roller bearing leading truck at the two ends of this swivel joint, and angular displacement can not take place, because the swivel joint rotational motion is subjected to the accurate control of roller bearing guider, the angular displacement of swivel joint two ends can be controlled in 2 °.
See also the side view that shows walking beam heating furnace vaporizing cooling systerm rotary joint subassembly shown in Figure 6.The movement locus of this activity step rate is one approximate rectangular, and elevating movement and translational motion all begin and stop in progressive mode, and rise and descending stroke in the middle of carry out and slow down, periodically finish the decline one of advancing of rising and retreat four actions.Consider the bracketed part in the rotary joint assembly in motion process: swivel joint 2, roller bearing leading truck 9, S type tube connector 7, u shaped connector 8 can produce the active force that certain weight is brought, and the S type is taken over and is provided with suspention counter weight device 11.
See also the structure of the suspention counter weight device 11 that Fig. 7 shows, back-moving spring assembly 309, nut 307, axle head head 306 serial connections will be gone up successively by spending blue bolt 308 in the upper end of its medi-spring 314; The solid lock set of being made up of split pin 305, nut 304, back-up ring 303 is connected axle head head 306 with bearing 302 on being connected fixed head 5; The solid lock set that the following tension spring assembly 315 that is connected with spring 314 lower ends is formed by split pin 313, nut 312, spring washer 311, packing ring 310 is connected to the steel plate that is fixed on the S type tube connector; Wherein in order to make back-moving spring assembly 309 and following tension spring assembly 315 in the firm respectively connection of spring 314 upper/lower terminals, the two ends of described spring 314 are shunk the conical camber that also can form with the descending gradual change of the diameter of back-moving spring assembly gradually and are closely connected, spring 314 closely is connected with the back-moving spring assembly, connects as welding or the solid lock set of employing.Suspention counter weight device 11 with this spline structure can play the effect of cushioning effect power, simultaneously the weight transmitting of the bracketed part in the rotary joint assembly is carried to upper header, has reduced the wearing and tearing of moving components such as swivel joint like this.
See also Fig. 8 and in conjunction with shown in Figure 6, shown the movement locus of walking beam heating furnace evaporated cooling system swivel joint 1 moving point among Fig. 6, Fig. 8 shows walking beam heating furnace vaporizing cooling systerm rotary joint subassembly and one advances and one descend and one retreat a moving some displacement under four different conditions finishing to rise, and the relation of tube connector variable angle, because the adapter at swivel joint two ends can be rotated by the axis around swivel joint under the state that swivel joint keeps sealing, as heating furnace step rate completion status I periodically, II, III, during four actions of IV, step rate upper header 14 drives the swivel joint 1 that is fixed on the upper header location-plate 5 and moves, and the swivel joint on the lower collecting box location-plate 43 is fixing mobile at this moment.S type tube connector 7, rotate around the swivel joint axis at adpting flange place respectively with U type pipeline 8 with 3 swivel joints, connect S type tube connector 7 between 3 swivel joints 1,2,3, and U type pipeline 8 between angle constantly change, and go up the step rate elevating movement and translational motion all begins and stops in progressive mode, and rise and descending stroke in the middle of carry out and slow down, the active force to the generation of swivel joint 2 is also just relatively little like this.When last step rate when finishing once complete action, moving point is also just correspondingly finished the first approximation regular-shape motion, because the suffered additional force of swivel joint is less, improved the service life of swivel joint, be difficult for to produce leak vapour, when drainage has so just realized relatively moving between upper and lower header, the sealing of tube connector.
Adopt this rotary joint assembly, just upper and lower header of step rate and rotary joint assembly can be arranged in walking beam heating furnace movable frame below together, occupy little space, load is light, and convenient for maintaining reduces investment.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.