CN102361273B - Cable-stayed suspension combined suspending method for cable protection in gallery inspection - Google Patents
Cable-stayed suspension combined suspending method for cable protection in gallery inspection Download PDFInfo
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- CN102361273B CN102361273B CN 201110267569 CN201110267569A CN102361273B CN 102361273 B CN102361273 B CN 102361273B CN 201110267569 CN201110267569 CN 201110267569 CN 201110267569 A CN201110267569 A CN 201110267569A CN 102361273 B CN102361273 B CN 102361273B
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Abstract
The invention provides a cable-stayed suspension combined suspending method for cable protection in gallery inspection, belonging to the technical fields of equipment inspection and overhaul. The suspending method mainly comprises the following steps of: machining lifting lugs, manufacturing and installing a tensile supporting frame, and fixing and suspending a chain block; releasing a cable, connecting and adjusting; and pulling the cable out of a bridge frame and restoring. In the invention, complex processes such as removing the used cable from an electricity utilization site, drawing out, putting in, wiring, checking and the like are avoided, influence from the used cable when a truss is removed is effectively overcome, hardly predicated hidden dangers appearing after the cable is cut off are avoided, the construction cost of an overhaul or technical modification project is reduced, the overhaul or technical modification construction period is shortened, and a new method for effectively solving the problem of overhaul or technical modification for an entire removing gallery overspan building in a plant area is provided. The method provided by the invention has the advantages of capability of operating in advance, safety and reliability, high overhaul work efficiency, high economic benefit and the like.
Description
Technical field
The invention belongs to equipment Inspection service technique field, relate in particular to a kind of oblique pull for cable protection in gallery inspection-suspension cable combination suspending method.
Background technology
In the enterprise production process such as chemical industry or metallurgy, often occur can not meet need of production or improve technique and need carry out the situation that band conveyer corridor is removed transformation because of technique, cable (in the cable testing bridge on the vestibule that is laid in) through vestibule is often more, sometimes maintenance duration is nervous especially, how within the limited time, to guarantee that the cable dismounting is so that Corridor lifts and recovers, the maintenance difficulty is larger, usually the scheme solved has following two kinds: the one, complete removal after the routing label of every cable to be drawn back, and vestibule is worn back recovery again after having transformed.If vestibule relates to, cable is many, path length, cable in the crane span structure of the vestibule outside, pumpback and recover that the work high above the ground difficulty is large, danger coefficient is higher, in addition in this scheme the vestibule lifting operation must with the electric specialty operation of staggering, cause the construction period to incur loss through delay; Another kind of scheme is to have cable to cut off in process vestibule place to add the terminal box transition.Because vestibule is outdoor structure mostly, and also comprise that cable type is more, cable cutter is had no progeny will be to producing and stay the hidden danger that much can not estimate from now on.By adopting the gallery inspection method that oblique pull-cable is hung in the suspension cable combination, avoid the shortcoming of above-mentioned two kinds of construction plan fully, meet the construction period of owner to rebuilding construction.
Summary of the invention
The present invention is directed to the technical problem that prior art exists, provide a kind of in the maintenance of vestibule integral shift or technology innovation project construction the oblique pull-suspension cable combination suspending method of protection cable.
Oblique pull for cable protection in gallery inspection provided by the present invention-suspension cable combination suspending method concrete steps are as follows:
(1) hanger processing, bear the bracing frame fabrication and installation, chain block is fixedly hung:
A: hanger processing welding:
Hanger after processing is welded on respectively on the structures of vestibule both sides and bears the bracing frame top;
B: bear the bracing frame fabrication and installation:
The power that bears after cable weight is estimated is carried out analytical calculation, make and bear bracing frame according to calculated data, bear bracing frame and adopt I-steel to support as trunk, bearing 3 hangers in the welding of bracing frame top, the bracing frame that bears after processing is welded in the sidepiece of vestibule reservation paragraph by cable testing bridge;
C: bottle gouard moved by hands is fixedly hung:
Bottle gouard moved by hands hangs on the hanger of firm welding;
(2) put rope, connect and regulate:
On vestibule section truss to be removed, cable testing bridge divides two-layer, this section cable wire is as cable main hoisting hanging cable, adopt 2 cable wires to hang intensity to guarantee cable, 2 cables are hung cable wire and are needed to guarantee that vestibule section to be removed is substantially parallel with Corridor after fastening, so that cable is hung; Retain vestibule section cable wire and work as auxiliary cable wire the effect of bearing, the design cable wire is laid on reservation vestibule section truss in catwalk, is convenient to lay and reclaims; Laying respectively 4 cable wires supports as oblique pull, Main Function is to decompose after cable is hung to treat to remove the stressed of vestibule section cable wire, calculating oblique pull section cable wire stressing conditions selects bottle gouard moved by hands to hang, be connected between every oblique pull cable wire and cable main hoisting steel-hanging rope that to adopt 3 wire clips to carry out fastening, according to cable hang the cable wire sag regulate oblique pull angle and tautness and guarantee to hang cable wire and the oblique pull cable wire at grade;
(3) cable is hung and recovers from pulling out in crane span structure:
After all dumps, cable in crane span structure is pulled out from side, be suspended on the cable wire on side with the colligation of 2 meters, preprepared rope made of hemp interval, pay next procedure after cable suspension, after truss dismounting transformation, installing, cable takes off and is returned in crane span structure.
The implementation procedure of this invention is as follows:
The bracing frame that bears processed is welded on to Corridor (as shown in Figure 3) F place, and 2, the strong construction C place of getting structures X hangs 2 chain blocks, chain block with bear supporting section and hang respectively 2 steel wire ropes as hanging the cable cable.For preventing from after cable from hanging bearing supporting, pull down partially, Fig. 3 shows that the FG section sets up steel cable as bearing cable, lower end hangs over to bear with snap close and supports above, and upper end hangs over (G point place) on structures Y belt feeder base through a chain block, by chain block, suspension cable is strained.Because the CF section is mainly to bear the section of cable weight, by calculating, need to add the oblique pull cable wire between CF section and structures X to guarantee to hang cable security, get two places as the oblique pull tie point at D, E, junction uses respectively wire clips fastening, oblique pull cable wire upper end is hung on respectively the A place of structures X by 2 bottle gouards moved by hands, 2 bottle gouards moved by hands are hung on the B place of structures X.Regulate oblique pull angle and tautness according to hanging cable cable wire sag, and guarantee to hang cable wire and oblique pull cable wire on same level.After oblique pull cable wire and suspension cable are fixing, just the crane span structure inner cable can be pulled out, and in addition the protective measure rear-mounted on CF section cable wire.Pay next procedure after completing above-mentioned working procedure, construction is removed, transformed and reinstall to vestibule.
The present invention avoided come into operation cable from electricity consumption point remove, extract out, wear back again, numerous rope operation such as wiring, verification, efficiently solve when truss is removed the impact of the cable that is subject to come into operation, after having avoided the cable severing, some are difficult to the hidden danger of prediction, reduced the construction cost of maintenance or technology innovation project, greatly shortened maintenance or technological transformation construction period, crossed for on-site vestibule class maintenance or the technological transformation removed across construction integral body a kind of New Solution effectively is provided.
The inventive method has following characteristics:
But 1 forward job: cable from the electricity consumption point draw back or therefrom cutting method can start operation must having a power failure, oblique pull-suspension cable combined method is hung the method for cable can be in the situation that do not have a power failure all preparation completed, Awaiting Overhaul can be delivered other specialties with prestissimo after implementing to start to have a power failure.
2, safe and reliable: the many outers in the vestibule aisle of the cable that factory lays along vestibule, draw back the repair method personnel operation outside the railing of vestibule aisle of must lying prone from the electricity consumption point, draw back in addition in process large heart yearn power cable heavier, cable or personal height falling accident easily occur during operation.This method can be avoided the generation of falling from high altitude accident fully.
3, the maintenance work efficiency is high: cable from the electricity consumption point draw back method need be power failure can operation, after maintenance starts, the mechanical hoisting specialty must wait for that the electric specialty cable can operation after drawing back, and electric specialty must be waited for that mechanical hoisting specialty is removed after transformation is recovered and can carry out the cable recovery, the repair time will consume in continuous productive process mutually.The method of using oblique pull-suspension cable combined method to hang cable has been avoided the waste of construction period substantially, has greatly improved work efficiency.
4, economic benefit is high: cable from the electricity consumption point draw back, restoration methods must spend a large amount of labour costs.The operations such as the method for using oblique pull-suspension cable combined method to hang cable has been avoided dismounting, draws back, again laid, wiring, verification, saved cost of labor, and that avoids that different work posts wait for mutually delays work the time, and operational method is also simple and easy to do simultaneously, greatly reduces the construction total cost.
The accompanying drawing explanation
Fig. 1: be the inventive method implementation process schematic diagram.
Fig. 2: be the Corridor schematic diagram before the inventive method is implemented.
Fig. 3: be that hanger is made schematic diagram.
Fig. 4: be to bear the support manufacturing schematic diagram.
In figure: 1: bottle gouard moved by hands; 2: the oblique pull cable wire; 3 cable main hoisting steel-hanging ropes; 4: wire clips; 5: bear support; 6: bear cable wire; 7: channel-section steel; 8: I-steel; 9: hanger.
Embodiment
Oblique pull for cable protection in gallery inspection provided by the invention-suspension cable combination suspending method concrete technology is as follows:
1, hang preparation:
1.1 hanger processing
Through calculating, hanger adopts δ=14 ~ 20mm steel plate to be processed (as Fig. 1), and processing quantity is 10, is welded on respectively A shown in Fig. 3, B, C, F, G place.Wherein the F place is welded on and bears bracing frame top (as shown in Figure 2), and all the other are hangs bottle gouard moved by hands use.
1.2 bear the bracing frame fabrication and installation
The power that bears after cable weight is estimated is carried out analytical calculation, make and bear bracing frame (as Fig. 2) according to calculated data, bear the F place of bracing frame (5) corresponding to vestibule, adopt 18#～22# lightweight I-beam to support as trunk, both sides are welded into the symmetric triangular bracing frame with 4 channel-section steels, weld upper 3 hangers (as Fig. 2) bearing bracing frame (5) top.During installation, the support afterbody firmly is welded on Corridor F place sidepiece.
1.3 bottle gouard moved by hands is fixedly hung
Bottle gouard moved by hands hangs on the hanger of firm welding, and the A place is 2 bottle gouards moved by hands, and the B place is 2 bottle gouards moved by hands, and the C place is 2 bottle gouards moved by hands, and the G place is 1 bottle gouard moved by hands.
2, put rope, connect and regulate
After the cable wire passed examination, can come into operation.Select as calculated can meet the steel wire rope of hanging the cable requirement and hang cable as cable, on CF section truss cable testing bridge divide two-layer, consider stressed with recover convenient, this section cable wire is as cable main hoisting hanging cable.Adopt 2 cable wires to hang intensity to guarantee cable, 2 cables are hung cable wire and are needed to guarantee the CF segment base after fastening this is parallel with Corridor, so that cable is hung; FG section cable wire works as auxiliary cable wire the effect of bearing, and 1 steel wire rope is enough to guarantee tension intensity, and cable wire can be laid on FG section truss in catwalk, is convenient to lay and reclaims; AE, BD section cable wire support as oblique pull, Main Function is to decompose cable to hang rear stressed to CF section cable wire, consider that AE section cable wire is stressed larger, A selects at place bottle gouard moved by hands to hang, be connected between every oblique pull cable wire and cable main hoisting steel-hanging rope that to adopt wire clips to carry out fastening, according to cable hang the cable wire sag regulate oblique pull angle and tautness and guarantee to hang cable wire and the oblique pull cable wire at grade.
3, cable is hung and recovers from pulling out in crane span structure
After all dumps, (avoid the damaged electric leakage of cable insulation to have an accident), just can pull out the cable in crane span structure from side, be suspended on the cable wire on side with the colligation of 2 meters, preprepared rope made of hemp interval.Just can pay next procedure after cable suspension, after truss is removed transformation, installed, be returned in crane span structure under cable is just desirable.
Claims (3)
1. the oblique pull for cable protection in gallery inspection-suspension cable combines suspending method, it is characterized in that these suspending method concrete steps are as follows:
(1) hanger processing, bear the bracing frame fabrication and installation, chain block is fixedly hung:
A: hanger processing welding:
Hanger after processing is welded on respectively on the structures of vestibule both sides and bears the bracing frame top;
B: bear the bracing frame fabrication and installation:
The power that bears after cable weight is estimated is carried out analytical calculation, make and bear bracing frame according to calculated data, bear bracing frame and adopt I-steel to support as trunk, bearing 3 hangers in the welding of bracing frame top, the bracing frame that bears after processing is welded in the sidepiece of vestibule reservation paragraph by cable testing bridge;
C: bottle gouard moved by hands is fixedly hung:
Bottle gouard moved by hands hangs on the hanger of firm welding;
(2) put rope, connect and regulate:
On vestibule section truss to be removed, cable testing bridge divides two-layerly, and this section cable wire, as cable main hoisting hanging cable, adopts 2 cable wires to hang intensity to guarantee cable, and 2 cables are hung cable wire and needed to guarantee that vestibule section to be removed is substantially parallel with Corridor after fastening; Retain vestibule section cable wire and work as auxiliary cable wire the effect of bearing, the design cable wire is laid on reservation vestibule section truss in catwalk; Laying respectively 4 cable wires supports as oblique pull, calculating oblique pull section cable wire stressing conditions selects bottle gouard moved by hands to hang, be connected between every oblique pull cable wire and cable main hoisting steel-hanging rope that to adopt 3 wire clips to carry out fastening, according to cable hang the cable wire sag regulate oblique pull angle and tautness and guarantee to hang cable wire and the oblique pull cable wire at grade;
(3) cable is hung and recovers from pulling out in crane span structure:
After all dumps, cable in crane span structure is pulled out from side, be suspended on the cable wire on side with the colligation of 2 meters, preprepared rope made of hemp interval, pay next procedure after cable suspension, after truss dismounting transformation, installing, cable takes off and is returned in crane span structure.
2. suspending method according to claim 1, the material that it is characterized in that described hanger is Q235B, thickness is 14mm ~ 18mm.
3. suspending method according to claim 1, is characterized in that the described bracing frame that bears adopts lightweight I-beam to support as trunk, and both sides are welded into the symmetric triangular bracing frame with channel-section steel, are bearing 3 hangers of bracing frame top welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267569 CN102361273B (en) | 2011-09-10 | 2011-09-10 | Cable-stayed suspension combined suspending method for cable protection in gallery inspection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267569 CN102361273B (en) | 2011-09-10 | 2011-09-10 | Cable-stayed suspension combined suspending method for cable protection in gallery inspection |
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| Publication Number | Publication Date |
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| CN102361273A CN102361273A (en) | 2012-02-22 |
| CN102361273B true CN102361273B (en) | 2013-12-18 |
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