CN104917118A - Combined fireproof cable tray for power supply system cable and installation method of combined fireproof cable tray - Google Patents
Combined fireproof cable tray for power supply system cable and installation method of combined fireproof cable tray Download PDFInfo
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- CN104917118A CN104917118A CN201510247321.6A CN201510247321A CN104917118A CN 104917118 A CN104917118 A CN 104917118A CN 201510247321 A CN201510247321 A CN 201510247321A CN 104917118 A CN104917118 A CN 104917118A
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Abstract
The invention discloses a combined fireproof cable tray for a power supply system cable. The combined fireproof cable tray includes a channel and a protective cover; the channel is composed of a left side wall beam and a right side wall beam which are in bilateral symmetry, and a bottom plate; the protective cover includes a protective cover plate and clamping buckles; two rows of round holes are uniformly formed in the protective cover plate; the left side wall beam has the same structure as the right side wall beam; the left side wall beam is composed of a side wall plate and a fixing groove; the upper end of the side wall plate extends outwards so as to form a slide groove; the protective cover slides on the left side wall beam and the right side wall beam through the clamping buckles; fixing frames symmetrically extend out from two ends of the side wall plate; fixing holes are formed in the fixing frames respectively; two rows of vent pipes are uniformly formed in the bottom plate; and the bottom plate is inserted into the fixing grooves of the left side wall beam and the right side wall beam, so that a U-shaped structure of the channel can be formed. The invention also provides an installation method of the combined fireproof cable tray. The installation method of the combined fireproof cable tray has the advantages of being simple and feasible, short installation time, low labor intensity and high work efficiency. The combined fireproof cable tray has the advantages of simple structure, convenience in transportation, simple assembly and disassembly and good fireproof performance, and can protect the cable.
Description
Technical field
The present invention relates to the laying apparatus of cable in a kind of electric power system, be specifically related to a kind of electric power system cable Combined fireproof crane span structure and installation method thereof.
Background technology
At present, variable frequency power supply, shore electric power are often used in electric power system, and operationally, the laying of the cable of transferring electric power becomes a great problem, lay irregularity, affect dismounting in the future and maintenance, also can increase unexpected frequency in electric power system; Cable testing bridge product is the initial stage sixties, a kind of novel cable laying apparatus that industrially developed country develops; Along with high development that is electrified, automation, the particularly change of distribution system, trench direct-burried and support cable laying can not meet instructions for use, the substitute is that a kind of cost is low, construction is fast, distribution flexibly, be convenient to handling and change, not by position limitation, cable testing bridge simultaneously attractive in appearance again, thus accelerate construction schedule, ensure that quality, achieve the standardization of product, seriation and generalization; Crane span structure is widely used in industries such as oil, chemical industry, telecommunications, and existing crane span structure is mostly overall fixed, when transporting, for all-in-one-piece crane span structure, transports very inconvenient; On the other hand, when changing crane span structure, expanding, its installation environment often changes, and because crane span structure is fixing, makes troubles so just to the secondary installing of crane span structure.
Existing crane span structure is in use due to long term exposure easily aging, corrosion, and when breaking out of fire, fire resistance fire line is very poor, affects useful life, raises the cost; In addition, crane span structure is excessive due to volume when mounted, fitting operation inconvenience, length consuming time, and the amount of labour is also large, and therefore, researching and developing a kind of crane span structure that can overcome above defect becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, provides a kind of electric power system cable Combined fireproof crane span structure and installation method thereof; this electric power system cable Combined fireproof bridge construction is simple; knockdown mode, convenient transportation, removes and installs simple; fire protecting performance is good; well protect cable, the installation method of this Combined fireproof crane span structure is simple, and the set-up time is short; labour intensity is little, and operating efficiency is high.
In order to solve above technical problem, the invention provides a kind of electric power system cable Combined fireproof crane span structure, comprise truss and the guard shield be arranged on truss, guard shield activity is spliced on truss, truss is made up of the left side wall beam be symmetrical set, right side wall beam and the base plate be arranged between left and right sidewall beam, wherein:
Guard shield comprises the buckle that guard shield plate and guard shield plate two ends are extended, and buckle, perpendicular to guard shield plate, all establishes two row's circular holes along on guard shield plate length direction, often drains into few 10 circular holes;
Left side wall beam is identical with right side wall girder construction, the holddown groove that left side wall beam is extended by the sidewall paneling vertically placed and side, sidewall paneling lower end forms, holddown groove is perpendicular to sidewall paneling, sidewall paneling upper end stretches out formation chute, chute and holddown groove are at the homonymy of sidewall paneling, buckle on chute and guard shield is suitable, guard shield slides by being buckled on left and right sidewall beam, sidewall paneling two ends symmetry is extended with fixed mount, fixed mount is provided with at least four fixing holes, fixed mount is perpendicular to sidewall paneling, and fixed mount is positioned at the side away from holddown groove on sidewall paneling;
Along the length direction of base plate all being established two row's ventilation ducts, often drain into few 10 ventilation ducts, and ventilation duct is strictly corresponding with the position of circular hole on guard shield, ventilation duct upper end open lower end penetrates base plate, the caliber of ventilation duct successively decreases from the bottom to top, holddown groove on base plate and left and right sidewall beam is suitable, and base plate inserts composition truss in the holddown groove on left and right sidewall beam and to take the shape of the letter U structure.
The technical scheme that the present invention limits further is:
Further, in aforementioned electric power system cable Combined fireproof crane span structure, left and right sidewall beam is also provided with at least four folding ears away from the side of holddown groove, and folding ear arranges along the length direction of left and right sidewall beam and is parallel to each other.
Folding ear in the present invention is convenient to be fixed suspension when erection bridge with steel wire, easy to install, reduces labour intensity, shortens the operating time.
In aforementioned electric power system cable Combined fireproof crane span structure, the height of ventilation duct is 3/4ths of Combined fireproof bridge height;
When breaking out of fire, flame enters from ventilation duct, due to the pressure of inertia and air, flame can directly by ventilation duct directly by outside circular hole discharge crane span structure, the cable avoided in crane span structure is subject to changing bad, well protects cable.
In aforementioned electric power system cable Combined fireproof crane span structure, truss is coated with fire-proof heat-insulating layer, fire-proof heat-insulating layer is fiber composite heat-insulating shield; Guard shield surface is coated with zinc layers, better improves fire protecting performance, ensure that the fail safe of cable, extends useful life, reduce cost.
The present invention have also been devised a kind of installation method of electric power system cable Combined fireproof crane span structure, and this installation method specifically comprises the following steps:
(1) install prepare: confide a technological secret according to the construction plan of approved, according to construction plan statistics crane span structure actual requirement, onsite acceptance crane span structure and annex complete, specification quantity should meet construction plan requirement;
(2) crane span structure positioning marking: and according to construction drawing and design, along crane span structure trend find level, vertical, turn and the relative elevation on ground and the relative distance of wall, eject corresponding lines or line, equably equidistant position of marking column;
(3) column is installed: adopt I-shaped column, and column is fixed installation adjustment according to construction plan, then on column, installs trailing arm with bolt, trailing arm and uprights vertical;
(4) crane span structure assembling and and adjustment: first by the symmetrical placement of left and right sidewall beam identical for structure, then base plate is inserted in the holddown groove on left and right sidewall beam simultaneously and form one section of truss, be fixed together by the fixed mount at left and right sidewall beam two ends between every section of crane span structure;
Assembled rear laser level and controlled its levelness, the crane span structure center line left-right deviation on same straightway is at ± 7-9mm, and vertical deviation is at ± 2-4mm;
(5) location of crane span structure is fastening: be fixed on by the crane span structure assembled on the trailing arm on column, then move to the position of design, hangs through the folding ear on crane span structure with wire by fixing for crane span structure;
(6) touch-up paint of crane span structure: the skin of paint that crane span structure declines in installation process, the enamelled coating place of brushing and coming off is mended with the paint of the identical paint look of crane span structure, leave standstill after 0.5-1 days, self-inspection is qualified, the inspection of report Supervision Organization, carries out laying of cable after acceptance(check), after cable laying, guard shield is snapped in the chute of left and right sidewall beam upper end by the buckle at guard shield plate two ends, the installation of Combined fireproof crane span structure in engineering can be completed;
(7) crane span structure ground connection: cross section, crane span structure junction is 4-6mm
2three strands of copper core cross-over connection ground wires.
The technical scheme that the present invention limits further is:
In the installation method of aforementioned electric power system cable Combined fireproof crane span structure, crane span structure turning bending radius is not less than the maximum of the minimum permission bending radius of cable on the crane span structure that is laid in.
In the installation method of aforementioned electric power system cable Combined fireproof crane span structure, crane span structure, in turning or when carrying out interconnection, adopts crane span structure normal bend to carry out Byway, and first installation code elbow, and then the straight line crane span structure of guiding each orientation into is installed from elbow, in order to avoid be connected bad.
The invention has the beneficial effects as follows:
In the present invention, electric power system cable Combined fireproof crane span structure adopts knockdown mode, is easy to installing/dismounting, convenient transportation, save the set-up time, facilitated maintenance in the future, reduce labour intensity, do not need solder joint to fix, saved material and resource, operate pollution-free.
Guard shield in the present invention and base plate are all that the mode by inserting engaging connects, and have saved the set-up time, have reduced labour intensity, improve operating efficiency, and also more convenient when carrying out secondary and using, be beneficial to secondary returning use, reduce cost, utilance improves greatly.
The design energy ventilation and heat of the ventilation duct in the present invention and circular hole, ensures that cable is operationally effectively dispelled the heat, ensures the normal of work, increase the service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric power system cable Combined fireproof crane span structure of the present invention;
In figure: 1-guard shield, 2-left side wall beam, 3-right side wall beam, 4-holddown groove, 5-chute, 6-base plate, 7-ventilation duct, 8-circular hole, 9-fixed mount, 10-fixing hole, 11-sidewall paneling, 12-rolls over ear.
Embodiment
embodiment 1
A kind of electric power system cable Combined fireproof crane span structure that the present embodiment provides, structure as shown in Figure 1, comprise truss and the guard shield 1 be arranged on truss, truss is coated with fire-proof heat-insulating layer, fire-proof heat-insulating layer is fiber composite heat-insulating shield, and guard shield 1 surface is coated with zinc layers, and guard shield 1 activity is spliced on truss, truss is made up of the left side wall beam 2 be symmetrical set, right side wall beam 3 and the base plate 6 be arranged between left and right sidewall beam, wherein:
Guard shield 1 comprises the buckle that guard shield plate and guard shield plate two ends are extended, and buckle, perpendicular to guard shield plate, all establishes two row's circular holes 8 along on guard shield plate length direction, often drains into few 10 circular holes 8;
Left side wall beam 2 is identical with right side wall beam 3 structure, the holddown groove 4 that left side wall beam 2 is extended by the sidewall paneling 11 vertically placed and side, sidewall paneling 11 lower end forms, holddown groove 4 is perpendicular to sidewall paneling 11, sidewall paneling 11 upper end stretches out and forms chute 5, chute 5 and the homonymy of holddown groove 4 at sidewall paneling 11, chute 5 is suitable with the buckle on guard shield 1, guard shield 1 is by being buckled in a left side, right side wall beam 2, slide on 3, sidewall paneling 11 two ends symmetry is extended with fixed mount 9, fixed mount 9 is provided with at least four fixing holes 10, fixed mount 9 is perpendicular to sidewall paneling 11, and fixed mount 9 is positioned at the side away from holddown groove 4 on sidewall paneling 11, left, right side wall beam 2, at least four folding ears 12 are also provided with away from the side of holddown groove 4 on 3, folding ear 12 is along a left side, right side wall beam 2, the length direction of 3 arranges and is parallel to each other,
Two row's ventilation ducts 7 are all established along on the length direction of base plate 6, often drain into few 10 ventilation ducts 7, the height of ventilation duct 7 is 3/4ths of Combined fireproof bridge height, and ventilation duct 7 is strictly corresponding with the position of circular hole 8 on guard shield 1, ventilation duct 7 upper end open lower end penetrates base plate 6, the caliber of ventilation duct 7 successively decreases from the bottom to top, and base plate 6 is suitable with the holddown groove 4 on left and right sidewall beam 2,3, and base plate 6 inserts composition truss in the holddown groove 4 on left and right sidewall beam 2,3 and to take the shape of the letter U structure.
embodiment 2
The present embodiment provides the installation method of electric power system cable Combined fireproof crane span structure in above-described embodiment 1, and this installation method specifically comprises the following steps:
(1) install prepare: confide a technological secret according to the construction plan of approved, according to construction plan statistics crane span structure actual requirement, onsite acceptance crane span structure and annex complete, specification quantity should meet construction plan requirement;
(2) crane span structure positioning marking: and according to construction drawing and design, along crane span structure trend find level, vertical, turn and the relative elevation on ground and the relative distance of wall, eject corresponding lines or line, equidistant position of marking column equably, crane span structure turning bending radius is not less than the maximum of the minimum permission bending radius of cable on the crane span structure that is laid in, crane span structure is in turning or when carrying out interconnection, crane span structure normal bend is adopted to carry out Byway, and first installation code elbow, and then the straight line crane span structure of guiding each orientation into is installed from elbow;
(3) column is installed: adopt I-shaped column, and column is fixed installation adjustment according to construction plan, then on column, installs trailing arm with bolt, trailing arm and uprights vertical;
(4) crane span structure assembling and and adjustment: first by the symmetrical placement of left and right sidewall beam 2,3 identical for structure, then base plate 6 is inserted in the holddown groove 4 on left and right sidewall beam 2,3 simultaneously and form one section of truss, be fixed together by the fixed mount 9 at left and right sidewall beam two ends between every section of crane span structure;
Assembled rear laser level and controlled its levelness, the crane span structure center line left-right deviation on same straightway is at ± 7-9mm, and vertical deviation is at ± 2-4mm;
(5) location of crane span structure is fastening: be fixed on by the crane span structure assembled on the trailing arm on column, then move to the position of design, hangs through the folding ear on crane span structure with wire by fixing for crane span structure;
(6) touch-up paint of crane span structure: the skin of paint that crane span structure declines in installation process, the enamelled coating place of brushing and coming off is mended with the paint of the identical paint look of crane span structure, leave standstill after 0.5-1 days, self-inspection is qualified, the inspection of report Supervision Organization, carries out laying of cable after acceptance(check), after cable laying, guard shield is snapped in the chute of left and right sidewall beam upper end by the buckle at guard shield plate two ends, the installation of Combined fireproof crane span structure in engineering can be completed;
(7) crane span structure ground connection: cross section, crane span structure junction is 4-6mm
2three strands of copper core cross-over connection ground wires.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of application claims.
Claims (7)
1. an electric power system cable Combined fireproof crane span structure, comprise truss and the guard shield (1) be arranged on truss, it is characterized in that: described guard shield (1) activity is spliced on described truss, described truss is made up of the left side wall beam (2) be symmetrical set, right side wall beam (3) and the base plate (6) be arranged between left and right sidewall beam, wherein:
Described guard shield (1) comprises the buckle that guard shield plate and guard shield plate two ends are extended, and described buckle, perpendicular to described guard shield plate, all establishes two row's circular holes (8) along on described guard shield plate length direction, often drains into few 10 circular holes (8);
Described left side wall beam (2) is identical with right side wall beam (3) structure, the holddown groove (4) that described left side wall beam (2) is extended by the sidewall paneling vertically placed (11) and sidewall paneling (11) side, lower end forms, described holddown groove (4) is perpendicular to described sidewall paneling (11), described sidewall paneling (11) upper end stretches out and forms chute (5), described chute (5) and holddown groove (4) homonymy in described sidewall paneling (11), described chute (5) is suitable with the buckle on guard shield (1), guard shield (1) is by being buckled in a left side, right side wall beam (2, 3) upper slip, described sidewall paneling (11) two ends symmetry is extended with fixed mount (9), described fixed mount (9) is provided with at least four fixing holes (10), described fixed mount (9) is perpendicular to described sidewall paneling (11), and fixed mount (9) is positioned at the side away from holddown groove (4) on sidewall paneling (11),
Along the length direction of base plate (6) all being established two row's ventilation ducts (7), often drain into few 10 ventilation ducts (7), and described ventilation duct (7) is strictly corresponding with the position of the upper described circular hole (8) of guard shield (1), described ventilation duct (7) upper end open lower end penetrates base plate (6), the caliber of described ventilation duct (7) successively decreases from the bottom to top, holddown groove (4) on described base plate (6) and described left and right sidewall beam (2,3) is suitable, and described base plate (6) inserts composition truss in the holddown groove (4) on left and right sidewall beam (2,3) and to take the shape of the letter U structure.
2. electric power system cable Combined fireproof crane span structure according to claim 1, it is characterized in that: described left and right sidewall beam (2,3) is also provided with at least four foldings ear (12) away from the side of holddown groove (4), and described folding ear (12) arranges along the length direction of left and right sidewall beam (2,3) and is parallel to each other.
3. electric power system cable Combined fireproof crane span structure according to claim 1, is characterized in that: the height of described ventilation duct (7) is 3/4ths of Combined fireproof bridge height.
4. electric power system cable Combined fireproof crane span structure according to claim 1, it is characterized in that: described truss is coated with fire-proof heat-insulating layer, described fire-proof heat-insulating layer is fiber composite heat-insulating shield; Described guard shield (1) surface is coated with zinc layers.
5. the electric power system cable installation method of Combined fireproof crane span structure as claimed in claim 1, it is characterized in that, this installation method specifically comprises the following steps:
(1) install prepare: confide a technological secret according to the construction plan of approved, according to construction plan statistics crane span structure actual requirement, onsite acceptance crane span structure and annex complete, specification quantity should meet construction plan requirement;
(2) crane span structure positioning marking: and according to construction drawing and design, along crane span structure trend find level, vertical, turn and the relative elevation on ground and the relative distance of wall, eject corresponding lines or line, equably equidistant position of marking column;
(3) column is installed: adopt I-shaped column, and column is fixed installation adjustment according to construction plan, then on column, installs trailing arm with bolt, trailing arm and uprights vertical;
(4) crane span structure assembling and and adjustment: first by left and right sidewall beam (2,3) symmetrical placement identical for structure, then inserted by base plate (6) in the holddown groove (4) on left and right sidewall beam (2,3) simultaneously and form one section of truss, the fixed mount (9) by left and right sidewall beam two ends between every section of crane span structure is fixed together;
Assembled rear laser level and controlled its levelness, the crane span structure center line left-right deviation on same straightway is at ± 7-9mm, and vertical deviation is at ± 2-4mm;
(5) location of crane span structure is fastening: be fixed on by the crane span structure assembled on the trailing arm on column, then move to the position of design, hangs through the folding ear on crane span structure with wire by fixing for crane span structure;
(6) touch-up paint of crane span structure: the skin of paint that crane span structure declines in installation process, the enamelled coating place of brushing and coming off is mended with the paint of the identical paint look of crane span structure, leave standstill after 0.5-1 days, self-inspection is qualified, the inspection of report Supervision Organization, carries out laying, after cable laying of cable in electric power system after acceptance(check), guard shield is snapped in the chute of left and right sidewall beam upper end by the buckle at guard shield plate two ends, the installation of Combined fireproof crane span structure in engineering can be completed;
(7) crane span structure ground connection: cross section, crane span structure junction is 4-6mm
2three strands of copper core cross-over connection ground wires.
6. the installation method of electric power system cable Combined fireproof crane span structure according to claim 5, is characterized in that: described crane span structure turning bending radius is not less than the maximum of the minimum permission bending radius of cable on the crane span structure that is laid in.
7. the installation method of electric power system cable Combined fireproof crane span structure according to claim 5, it is characterized in that: crane span structure is when turning or carrying out interconnection, crane span structure normal bend is adopted to carry out Byway, and first installation code elbow, and then the straight line crane span structure of guiding each orientation into is installed from elbow.
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| CN201510247321.6A CN104917118B (en) | 2015-05-14 | 2015-05-14 | A kind of electric power system cable Combined fireproof crane span structure and its installation method |
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| CN201510247321.6A CN104917118B (en) | 2015-05-14 | 2015-05-14 | A kind of electric power system cable Combined fireproof crane span structure and its installation method |
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| CN104917118B CN104917118B (en) | 2017-07-21 |
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