Bus is prevented mobile fixed support
Technical field:
The utility model relates to the anti-mobile fixed support of bus that a kind of Aluminum Electrolysis Production is used.
Technical background:
In Aluminum Electrolysis Production, negative busbar can pass through powerful galvanic current, and magnetic field that bus current produces and the Interaction Law of Electric Current on the bus produce electromagnetic force.Therefore, the negative busbar in the Aluminum Electrolysis Production all is subjected to the effect of powerful electromagnetic force and is offset, is shifted.Simultaneously, along with the continuous progress of aluminum electrolyzation technology, strength of current is also more and more higher.And for the bus of conduction, the lifting of its current density will bring the rising of bus temperature, thereby produces phenomenons such as heating, thermal distortion.An outstanding phenomenon is: under bus two ends fixed situation, thermal distortion forces can make bus to the side or be offset up and down, to discharge its heat distortion amount.
Past, in order to prevent bus distortion, displacement aborning,
At present, the normal so fixedly bus structure that uses in Aluminum Electrolysis Production, it adopts giving of bus structure underbeam and bus basis to bury the steel plate welding, support bus by insulating sleeve and insulcrete on it, insulating sleeve and insulcrete pad are in the two ends up and down of bus, bus structure is installed is in the above again put the beams in place, the both sides of bus clamp the upper and lower beam of bus structure with 3640 epoxy novolac laminated glass stringings and bolt.The shortcoming of this support is: the insulating sleeve that contacts with the bus lower surface is owing to exist the space, broken easily under action of gravity, and in case the insulating sleeve fragmentation takes place, fishbolt just loses its effect, thereby make the disengagement of getting in touch of underbeam on bus and the support, cause and bus and basis get in touch disengagement, the bus displacement easily takes place.
Summary of the invention:
The purpose of this utility model is: a kind of intensity height, compact construction are provided and can prevent effectively that bus is out of shape aborning, displacement easily with bus and basic fixed bus structure, make negative busbar in the Aluminum Electrolysis Production in the time spent of doing that is subjected to magnetic force and thermal distortion, bus skew, displacement phenomenon do not take place, thereby prevent the bus displacement, and can improve safety performance greatly.
The utility model is to constitute like this: it comprises bus structure underbeam (1), the giving of the following and bracket basis of bus structure underbeam (1) buried steel plate (8) and is connected, the top of bus structure underbeam (1) is insulcrete (2), back up pad (3) and bus (4) successively, be back up pad (3), insulcrete (2) and bus structure upper beam (5) successively on bus (4), in the both sides of bus (4) clamping supporting tube (6) is arranged, clamping supporting tube (6) is connected with bus structure underbeam (1) with bus structure upper beam (5) by the bolt (7) at two ends.
Insulcrete (2) is made of the dipping phenol aldehyde laminated cloth board, and back up pad (3) is made of 3240 epoxy phenolic laminated glass fabric plates, clamps supporting tube (6) and makes of 3640 epoxy novolac laminated glass stringings.
The utility model is compared with old-fashioned fixedly bus structure, owing to adopted above-mentioned technology, and adopted the insulcrete (2) of dipping phenol aldehyde laminated cloth board making and the back up pad (3) that 3240 epoxy phenolic laminated glass fabric plates are made, avoided the possibility of the insulating sleeve fragmentation of original technology; Simultaneously, owing to adopt the upper and lower beam of threaded stud connection bus support, and the support underbeam welds together with bus basis built-in fitting, thereby prevented effectively because electromagnetic force and thermal distortion make bus produce the phenomenon that is offset.
Description of drawings:
Fig. 1: structural representation of the present utility model, front view:
Fig. 2: structural representation of the present utility model, left view.
Embodiment:
Embodiment of the present utility model: according to the geometrical dimension of bus 4, design is also made each part, requires to connect according to diagram, and process is as follows: at first, do concrete foundation and pre-embedded steel slab 8, on pre-embedded steel slab 8, use the mode connection bus support underbeam 1 of welding; Secondly, on bus structure underbeam 1, place insulcrete 2, back up pad 3, bus 4, back up pad 3, insulcrete 2 and bus structure successively from bottom to top and put the beams in place 5; Then, the clamping supporting tube 6 that two ends are had a bolt 7 is placed on the both sides of bus 4, and its lower end is connected with bus structure underbeam 1, and upper end and bus structure are put the beams in place and 5 be connected; At last, adjust and tight a bolt 7, bus 4 is promptly firmly fixed.