CN102518310A - Construction method of photoelectric curtain wall of glass film - Google Patents
Construction method of photoelectric curtain wall of glass film Download PDFInfo
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- CN102518310A CN102518310A CN2011104084394A CN201110408439A CN102518310A CN 102518310 A CN102518310 A CN 102518310A CN 2011104084394 A CN2011104084394 A CN 2011104084394A CN 201110408439 A CN201110408439 A CN 201110408439A CN 102518310 A CN102518310 A CN 102518310A
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Abstract
The invention discloses a construction method of a photoelectric curtain wall of a glass film, which comprises mounting a support, laying a roof, mounting a cable tray, laying wires and cables, mounting a direct-current combiner box, wiring, mounting a low-voltage power distribution cabinet, wiring, mounting an inverter, mounting a grounding unit, mounting a monitoring system, mounting an adverse current prevention unit, and mounting a lightning protection facility. The invention combines the common conventional curtain wall (roof) with the photoelectric effect, makes the wall surface or roof have exterior protection functions, has rain-escaping, shading, wind proofing, sunstroke preventing and winter protection functions, simultaneously utilizes solar energy to generate power, and has obvious economic benefits.
Description
Technical field
The present invention relates to a kind of job practices of glass film photoelectric curtain wall.
Background technology
The job practices of existing glass film photoelectric curtain wall, construction is complicated, and construction effect is undesirable.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, the job practices of the glass film photoelectric curtain wall that construction effect is good.
Technical solution of the present invention is:
A kind of job practices of glass film photoelectric curtain wall is characterized in that: comprise the following steps:
(1) support is installed: at first on agent structure, carry out sign, the good line of bullet punches, gluing in the hole, handles the support positioning and fixing again to carrying out water-tight around the hole then;
(2) roofing is laid
1. photovoltaic module by the design pitch marshalling and be fixed on support or connector on;
2. leave installing space and heat radiation gap between photovoltaic module and the building coats, this gap must not be clogged by foreign material such as constructions;
3. the roofing photovoltaic square formation is arranged according to minimal channel width 500mm;
(3) cable testing bridge is installed
1) before cable testing bridge is installed,, at first carries out the unwrapping wire location, suspension bracket is installed with the position that civil engineering water service pipe, the specialty of ventilating are coordinated; The suspension and support spacing is chosen span by line of load and is supported; Span is 1.5m～3m, and when vertically installing, the fixed point spacing is not more than 2m;
2) after suspension bracket, support are installed and are finished; Carry out trailing arm and install, trailing arm uses brace to fix with hanging between the support, and is vertical can the gravitate run-off the straight not sagging to guarantee between support and the crane span structure body maintenance; Erection bridge body again; It is fixing that the crane span structure body uses junction plate to connect, and with set bolt the body of a bridge is fixed on the trailing arm, in case the crane span structure slippage;
Height off the ground when 3) the cable testing bridge level is installed is not less than 2.5m, when vertically installing apart from ground 1.8m;
When 4) the cable testing bridge level is installed, choose best span by line of load and carry out support fixation; Several groups of cable testing bridges are provided with maintenance, maintenance distance between each adjacent cable crane span structure when the parallel installation of sustained height;
5) on cable testing bridge continuously apart from cabling, the filling rate in cable cross section in crane span structure, power cable is not more than 40%, control cables is not more than 50%;
6) cable testing bridge is parallel with various pipelines or when intersecting, its minimum near is apart from meeting following requirement:
| The pipeline classification | Parallel clear distance | The intersection clear distance |
| The general technology pipeline | 0.4m | 0.3m |
| Have corrosive liquids or gas pipeline | 0.5m | 0.5m |
| The insulation layer heat distribution pipeline is arranged | 0.5m | 0.5m |
| No insulation layer heat distribution pipeline | 1.0m | 1.0m |
7) the every road of cable testing bridge is adopted and is no less than 2 place's reliable grounds, and ground connection adopts the galvanizing band iron to be connected ground resistance≤1 Ω with natural grounding substance;
(4) electric wire lays
1) lead connects
The crimping method is adopted in the connection of lead in case, box, uses wiring terminal and copper or aluminum casing, wire clamp to connect; The sub-thread aluminum core line adopts the wiring of insulation spiral to turn round connection; During being connected between lead and electric terminal, sub-thread copper or aluminium core and conductor cross-section are 25.mm
2And below the multiply copper conductor directly connect, the core of multiply copper conductor is adopted connect again after tightening, ward off tin earlier; Multiply copper conductor and conductor cross-section surpass 2.5mm
2Many copper conductors crimp type terminal after be connected with the terminal of electric device again; Copper, aluminum conductor are connected and use copper-aluminium transition terminal, copper-aluminium transition sleeve pipe or copper-aluminium transition wire clip to connect, and copper, when aluminium terminal is connected copper tip are done and ward off tin and handle; When using the crimping method to connect lead, the specification of wiring terminal copper or aluminum casing, pressing mold is consistent with the core cross section;
2) color mark of insulated electric conductor or bare conductor in the circuit:
Exchanging three-phase circuit: L1 is yellow mutually; L2 is green mutually; L3 is red mutually; The neutral conductor is light blue; The protection ground wire is yellowish green alternate color; Greenish-yellow Double-colour horn wire only is used for the mark protection grounding can not be used for other purposes; Light blue is used for neutrality or medium line;
3) calculate every cable length by design and Actual path before laying, arrange every dish cable, the minimizing cable connector;
4) minimum bending radius of cable meets: control cables and polyvinyl chloride insulation power cable are not less than 10D, and power cable with cross-linked polyethylene insulation is not less than 15D, and D is the outside diameter of cable here;
5) during cable laying, cable is drawn from the upper end of dish;
6) layout of power cable connector
1. the cable that lays side by side, stagger each other in the position of its joint;
2. the joint during the cable surface is put fixing with the supporting plate holder;
3. there is the protection box of the mechanical damage of preventing direct-buried cable connector box outside; Be positioned at the protection box of frozen soil layer, annotate in the box with pitch;
7) installing of sign board
In cable terminal, cable connector, corner, interlayer, in the two ends of tunnel and vertical shaft, people's well; Install sign board on the cable, indicate circuit number on the sign board, when not having numbering; Write cable model, specification and origin exactly, the cable that parallel connection is used has serial number;
8) cable that lays of vertical run or the inclination above 45 ° is in each support place; Every on the crane span structure at a distance from the 2m place; The cable of horizontal laying is at the place, two ends of cable head and end and turning, cable connector; When the cable spacing is had requirement, every at a distance from the 5-10m place; Fixedly adhering to specification of single-core cable;
9) fireproofing of cable is fire-retardant
Pass vertical shaft, wall, floor or get into the hole place of electrical panel, cabinet at cable, with the closely knit shutoff of fire prevention calking; In cable trench and tunnel, segmentation or answer the soft flame-proof material that fire resisting wall is set on request to the cable in important loop, in the special raceway groove that is laid in separately or in the fire-resistant enclosed slot box, or applies fireproof paint, fire prevention band to it; In the power cable connector both sides and the long section of adjacent cable 2-3 apply fireproof paint or fire prevention band, adopt fire-resistant or flame retardant type cable;
(5) the direct current header box install, wiring: by design and installation figure carry out frame, rack is installed screw and must be tightened; Frame, machine apart from install should with the inlet wire position alignment; During installation, should adjust level, verticality, deviation and be not more than 3mm; The installation drawing, the design arrangement figure that provide by the supplier carry out the distribution installation; The metal base of frame, rack, distributing frame is all carried out ground connection connection; Before the termination, the rack inner cable performs colligation, should leave 1 meter mobile surplus; Be ready to distributing frame termination table before the termination, cable termination carries out according to the termination table; The cable that gets in the rack from the scene at first will carry out the verification numbering, will fix from the cable that the scene gets in the rack; Get into the cable in the rack from the scene, should leave surplus; The cable that gets in the rack from the scene does not admit of joint;
(6) low-voltage distribution cabinet installation, wiring
When 1) in a row the length of power distribution cabinet surpassed 6m, the outlet in this chamber or other rooms was led in the passage setting behind the cabinet, and outlet is arranged in the both sides of passage, when the distance between two outlets surpasses 15m, also increased export therebetween;
2) designing requirement of construction drawing is pressed in the plan-position of low-voltage distribution cabinet, the locus unified standard size Control in the reference lamina vertical shaft;
3) independent low-voltage distribution cabinet is only looked for cabinet face and lateral vertical side degree;
4) become the row power distribution cabinet in place after, look for the cabinet at two ends earlier, little line is tightened in supreme 2/3 high position under the cabinet again; By the platform centering, nonstandard like cabinet, be as the criterion with the cabinet face; Adopt the 0.5mm iron plate to adjust during centering, every place pad can not surpass 3, the size of pressing set bolt then at most; With Electric portable drill boring, low-voltage distribution cabinet is fixed with the galvanized bolt of M12 on the foundation trench steelframe;
5) in a row power distribution cabinet is fixed with bolt between cabinet and the cabinet, according to the difference of the height of cabinet, selects corresponding fixed point;
(7) inverter is installed
1) it is smooth that photovoltaic combining inverter requires to install ground, around the rack enough spaces arranged, and is convenient to heat radiation and safeguards that headroom is not less than 50cm, and the space, back is not less than 50cm, and rack the place ahead can not be less than 80cm;
By assembly access situation divide single group conspire to create, organize more conspire to create, centralized;
2) be connected with photovoltaic array: design during with group serial type photovoltaic array that 100KW photovoltaic inverter is connected photovoltaic array both positive and negative polarity open-circuit voltage be no more than 880V;
3) be connected with electrical network: as long as the three phase network electric voltage frequency meets the requirements, photovoltaic combining inverter gets final product operate as normal, voltage range: 310V～450V, frequency range: 47HZ～51.5HZ;
4) DC side wiring: the maximum open circuit voltage of photovoltaic module is no more than 880V, and not charged when connecting the input cable, promptly the line breaker of DC power distribution cabinet must be in off-state; Measure the input voltage positive-negative polarity with universal meter, avoid importing polarity and connect instead; Just just connecing input terminal with input, to import the negative input terminal that connects;
5) AC side wiring: when connecting the electric current electrical network, AC side is not charged, and promptly the line breaker of AC power distribution cabinet/AC distribution panel is in off-state;
6) ground wire wiring: the ground connection copper bar of photovoltaic DC-to-AC converter reliably is connected with the earth gets final product;
(8) ground device is installed
1) ground device is installed: natural grounding substance, and utilize no waterproof base plate reinforcing bar or deep foundation to do ground connector, by designing requirement, the base plate bar splicing is welded; Two reinforcing bar and base plate reinforcing bars that face the diagonal angle mutually in the post are welded, and main muscle in the post is used the colour code marked, the colour code color is separated with the color of using on the civil works in same construction unit;
2) the ground connection main line lays: surface is established dismounting and the maintenance that ground wire does not hinder equipment; Grounding wire is answered level or vertical run, or along the building surface parallel lay-up; When grounding wire laid along building walls, the ground connection main line was not less than 200 ㎜ apart from ground, be not less than 10m apart from metope, and the horizontal range between supporter is 1m, and vertical component is 1.5m, and round part is divided into 0.5m; The grounding wire surface brush that surface is established is pitch-dark, but ground connection clamp and connect terminal etc. and locate not brush oil; When through walls, casing protection is crossed over the shrinkage joint; Carefully connect the wire and guide the place, building entrance into, be marked with black ground connection sign;
(9) monitoring system is installed
1) environment temperature sensor: adopt radiation shield to realize anti-spoke, the plane parallel of total solar radiation sensor and photovoltaic module, deviation be no more than ± and 2 °;
2) measuring equipment is installed: the photovoltaic system environment temperature sensor is installed in the sun-shading ventilating place of photovoltaic module central point equal height, in photovoltaic module 1.5m-10m scope; The assembly surface temperature pick up is installed in the center at the photovoltaic module back side; The total solar radiation sensor is installed on the important actor;
3) data acquisition unit is installed: the data acquisition unit construction and installation meet the regulation among " instrument and meter for automation engineering construction and standards of acceptance " GB50093; The holding wire conductor adopts shielding line, avoids and the strong parallel cabling of signal cable, or uses the steel pipe shielding; It is clear that the sign of signal keeps, and the pressure reduction between the multi-analog input signal of a module is not more than 24V;
(10) anti-backflow device is installed: anti-backflow device is installed in the photovoltaic plant AC power distribution cabinet/AC distribution panel, the current signal of distribution transformer low-pressure side and voltage signal acquisition in AC power distribution cabinet/AC distribution panel;
(11) lightning protection facility is installed
1) first order power arrester is installed on the end of incoming cables; Direct lightning strike, conduction thunder, induction thunder are implemented end of incoming cables department level protection;
2) the arrester circuit distance of one-level arrester that is installed on distribution end and requires distance in the second level is greater than 10 meters; Be struck by lightning energy and lightning wave reflection, indirect lightning strike of the remnants of elementary protection protected;
3) third level arrester is installed on by the protection equipment end,,, surpasses 10 meters and then need append the one-level arrester, prevents the lightning wave reflection and in being not more than 10 meters by the distance of the circuit between the protection equipment greater than 10 meters apart from the circuit of second level arrester distance;
4) ground connection way: require all exposed metal support component reliably to be connected with ground connector, after field trial, the self-tapping screw of employing M5 carries out hinged, and ground connector is no less than place, two diagonal angles and original roof lighting proof strip reliable soldering after forming ring-type;
5) increase lightning protection grounding network at one week of photovoltaic module periphery and the middle escape way place of roofing, adopt 25 * 4 galvanizing band irons, and be connected with original roof lighting proof strip reliable soldering, weld adopts 2 times red lead anti-corrosive paints to do preservative treatment, and brushes aluminium paint 2 times.
The present invention combines common traditional curtain wall (roof) with the photoelectric effect principle; Make its metope or roof have the function of going along with sb. to guard him, can take shelter from rain, shade, windproof, heatstroke prevention, winter protection etc., can also utilize the solar energy use of generating electricity simultaneously; Two at one stroke, have the remarkable economy characteristics.
The present invention can use in the existing building object of construction production, also can in existing building is transformed, use, and it has wide range of applications, and has the practicality characteristics; Photoelectric curtain wall roof construction is applicable to that solar energy resources enriches the zone and is applicable to three-dimensional building, is applicable to building position at sunshine etc.
Below in conjunction with embodiment the present invention is described further.
The specific embodiment
A kind of job practices of glass film photoelectric curtain wall is characterized in that: comprise the following steps:
(1) support is installed: at first on agent structure, carry out sign, the good line of bullet punches, gluing in the hole, handles the support positioning and fixing again to carrying out water-tight around the hole then;
(2) roofing is laid
1. photovoltaic module by the design pitch marshalling and be fixed on support or connector on;
2. leave installing space and heat radiation gap between photovoltaic module and the building coats, this gap must not be clogged by foreign material such as constructions;
3. the roofing photovoltaic square formation is arranged according to minimal channel width 500mm;
(3) cable testing bridge is installed
1) before cable testing bridge is installed,, at first carries out the unwrapping wire location, suspension bracket is installed with the position that civil engineering water service pipe, the specialty of ventilating are coordinated; The suspension and support spacing is chosen span by line of load and is supported; Span is 1.5m～3m, and when vertically installing, the fixed point spacing is not more than 2m;
2) after suspension bracket, support are installed and are finished; Carry out trailing arm and install, trailing arm uses brace to fix with hanging between the support, and is vertical can the gravitate run-off the straight not sagging to guarantee between support and the crane span structure body maintenance; Erection bridge body again; It is fixing that the crane span structure body uses junction plate to connect, and with set bolt the body of a bridge is fixed on the trailing arm, in case the crane span structure slippage;
Height off the ground when 3) the cable testing bridge level is installed is not less than 2.5m, when vertically installing apart from ground 1.8m;
When 4) the cable testing bridge level is installed, choose best span by line of load and carry out support fixation; Several groups of cable testing bridges are provided with maintenance, maintenance distance between each adjacent cable crane span structure when the parallel installation of sustained height;
5) on cable testing bridge continuously apart from cabling, the filling rate in cable cross section in crane span structure, power cable is not more than 40%, control cables is not more than 50%;
6) cable testing bridge is parallel with various pipelines or when intersecting, its minimum near is apart from meeting following requirement:
| The pipeline classification | Parallel clear distance | The intersection clear distance |
| The general technology pipeline | 0.4m | 0.3m |
| Have corrosive liquids or gas pipeline | 0.5m | 0.5m |
| The insulation layer heat distribution pipeline is arranged | 0.5m | 0.5m |
| No insulation layer heat distribution pipeline | 1.0m | 1.0m |
7) the every road of cable testing bridge is adopted and is no less than 2 place's reliable grounds, and ground connection adopts the galvanizing band iron to be connected ground resistance≤1 Ω with natural grounding substance;
(4) electric wire lays
1) lead connects
The crimping method is adopted in the connection of lead in case, box, uses wiring terminal and copper or aluminum casing, wire clamp to connect; The sub-thread aluminum core line adopts the wiring of insulation spiral to turn round connection; During being connected between lead and electric terminal, sub-thread copper or aluminium core and conductor cross-section are 25.mm
2And below the multiply copper conductor directly connect, the core of multiply copper conductor is adopted connect again after tightening, ward off tin earlier; Multiply copper conductor and conductor cross-section surpass 2.5mm
2Many copper conductors crimp type terminal after be connected with the terminal of electric device again; Copper, aluminum conductor are connected and use copper-aluminium transition terminal, copper-aluminium transition sleeve pipe or copper-aluminium transition wire clip to connect, and copper, when aluminium terminal is connected copper tip are done and ward off tin and handle; When using the crimping method to connect lead, the specification of wiring terminal copper or aluminum casing, pressing mold is consistent with the core cross section;
2) color mark of insulated electric conductor or bare conductor in the circuit:
Exchanging three-phase circuit: L1 is yellow mutually; L2 is green mutually; L3 is red mutually; The neutral conductor is light blue; The protection ground wire is yellowish green alternate color; Greenish-yellow Double-colour horn wire only is used for the mark protection grounding can not be used for other purposes; Light blue is used for neutrality or medium line;
3) calculate every cable length by design and Actual path before laying, arrange every dish cable, the minimizing cable connector;
4) minimum bending radius of cable meets: control cables and polyvinyl chloride insulation power cable are not less than 10D, and power cable with cross-linked polyethylene insulation is not less than 15D, and D is the outside diameter of cable here;
5) during cable laying, cable is drawn from the upper end of dish;
6) layout of power cable connector
1. the cable that lays side by side, stagger each other in the position of its joint;
2. the joint during the cable surface is put fixing with the supporting plate holder;
3. there is the protection box of the mechanical damage of preventing direct-buried cable connector box outside; Be positioned at the protection box of frozen soil layer, annotate in the box with pitch;
7) installing of sign board
In cable terminal, cable connector, corner, interlayer, in the two ends of tunnel and vertical shaft, people's well; Install sign board on the cable, indicate circuit number on the sign board, when not having numbering; Write cable model, specification and origin exactly, the cable that parallel connection is used has serial number;
8) cable that lays of vertical run or the inclination above 45 ° is in each support place; Every on the crane span structure at a distance from the 2m place; The cable of horizontal laying is at the place, two ends of cable head and end and turning, cable connector; When the cable spacing is had requirement, every at a distance from the 5-10m place; Fixedly adhering to specification of single-core cable;
9) fireproofing of cable is fire-retardant
Pass vertical shaft, wall, floor or get into the hole place of electrical panel, cabinet at cable, with the closely knit shutoff of fire prevention calking; In cable trench and tunnel, segmentation or answer the soft flame-proof material that fire resisting wall is set on request to the cable in important loop, in the special raceway groove that is laid in separately or in the fire-resistant enclosed slot box, or applies fireproof paint, fire prevention band to it; In the power cable connector both sides and the long section of adjacent cable 2-3 apply fireproof paint or fire prevention band, adopt fire-resistant or flame retardant type cable;
(5) the direct current header box install, wiring: by design and installation figure carry out frame, rack is installed screw and must be tightened; Frame, machine apart from install should with the inlet wire position alignment; During installation, should adjust level, verticality, deviation and be not more than 3mm; The installation drawing, the design arrangement figure that provide by the supplier carry out the distribution installation; The metal base of frame, rack, distributing frame is all carried out ground connection connection; Before the termination, the rack inner cable performs colligation, should leave 1 meter mobile surplus; Be ready to distributing frame termination table before the termination, cable termination carries out according to the termination table; The cable that gets in the rack from the scene at first will carry out the verification numbering, will fix from the cable that the scene gets in the rack; Get into the cable in the rack from the scene, should leave surplus; The cable that gets in the rack from the scene does not admit of joint;
(6) low-voltage distribution cabinet installation, wiring
When 1) in a row the length of power distribution cabinet surpassed 6m, the outlet in this chamber or other rooms was led in the passage setting behind the cabinet, and outlet is arranged in the both sides of passage, when the distance between two outlets surpasses 15m, also increased export therebetween;
2) designing requirement of construction drawing is pressed in the plan-position of low-voltage distribution cabinet, the locus unified standard size Control in the reference lamina vertical shaft;
3) independent low-voltage distribution cabinet is only looked for cabinet face and lateral vertical side degree;
4) become the row power distribution cabinet in place after, look for the cabinet at two ends earlier, little line is tightened in supreme 2/3 high position under the cabinet again; By the platform centering, nonstandard like cabinet, be as the criterion with the cabinet face; Adopt the 0.5mm iron plate to adjust during centering, every place pad can not surpass 3, the size of pressing set bolt then at most; With Electric portable drill boring, low-voltage distribution cabinet is fixed with the galvanized bolt of M12 on the foundation trench steelframe;
5) in a row power distribution cabinet is fixed with bolt between cabinet and the cabinet, according to the difference of the height of cabinet, selects corresponding fixed point;
(7) inverter is installed
1) it is smooth that photovoltaic combining inverter requires to install ground, around the rack enough spaces arranged, and is convenient to heat radiation and safeguards that headroom is not less than 50cm, and the space, back is not less than 50cm, and rack the place ahead can not be less than 80cm;
By assembly access situation divide single group conspire to create, organize more conspire to create, centralized;
2) be connected with photovoltaic array: design during with group serial type photovoltaic array that 100KW photovoltaic inverter is connected photovoltaic array both positive and negative polarity open-circuit voltage be no more than 880V;
3) be connected with electrical network: as long as the three phase network electric voltage frequency meets the requirements, photovoltaic combining inverter gets final product operate as normal, voltage range: 310V～450V, frequency range: 47HZ～51.5HZ;
4) DC side wiring: the maximum open circuit voltage of photovoltaic module is no more than 880V, and not charged when connecting the input cable, promptly the line breaker of DC power distribution cabinet must be in off-state; Measure the input voltage positive-negative polarity with universal meter, avoid importing polarity and connect instead; Just just connecing input terminal with input, to import the negative input terminal that connects;
5) AC side wiring: when connecting the electric current electrical network, AC side is not charged, and promptly the line breaker of AC power distribution cabinet/AC distribution panel is in off-state;
6) ground wire wiring: the ground connection copper bar of photovoltaic DC-to-AC converter reliably is connected with the earth gets final product;
(8) ground device is installed
1) ground device is installed: natural grounding substance, and utilize no waterproof base plate reinforcing bar or deep foundation to do ground connector, by designing requirement, the base plate bar splicing is welded; Two reinforcing bar and base plate reinforcing bars that face the diagonal angle mutually in the post are welded, and main muscle in the post is used the colour code marked, the colour code color is separated with the color of using on the civil works in same construction unit;
2) the ground connection main line lays: surface is established dismounting and the maintenance that ground wire does not hinder equipment; Grounding wire is answered level or vertical run, or along the building surface parallel lay-up; When grounding wire laid along building walls, the ground connection main line was not less than 200 ㎜ apart from ground, be not less than 10m apart from metope, and the horizontal range between supporter is 1m, and vertical component is 1.5m, and round part is divided into 0.5m; The grounding wire surface brush that surface is established is pitch-dark, but ground connection clamp and connect terminal etc. and locate not brush oil; When through walls, casing protection is crossed over the shrinkage joint; Carefully connect the wire and guide the place, building entrance into, be marked with black ground connection sign;
(9) monitoring system is installed
1) environment temperature sensor: adopt radiation shield to realize anti-spoke, the plane parallel of total solar radiation sensor and photovoltaic module, deviation be no more than ± and 2 °;
2) measuring equipment is installed: the photovoltaic system environment temperature sensor is installed in the sun-shading ventilating place of photovoltaic module central point equal height, in photovoltaic module 1.5m-10m scope; The assembly surface temperature pick up is installed in the center at the photovoltaic module back side; The total solar radiation sensor is installed on the important actor;
3) data acquisition unit is installed: the data acquisition unit construction and installation meet the regulation among " instrument and meter for automation engineering construction and standards of acceptance " GB50093; The holding wire conductor adopts shielding line, avoids and the strong parallel cabling of signal cable, or uses the steel pipe shielding; It is clear that the sign of signal keeps, and the pressure reduction between the multi-analog input signal of a module is not more than 24V;
(10) anti-backflow device is installed: anti-backflow device is installed in the photovoltaic plant AC power distribution cabinet/AC distribution panel, the current signal of distribution transformer low-pressure side and voltage signal acquisition in AC power distribution cabinet/AC distribution panel;
(11) lightning protection facility is installed
1) first order power arrester is installed on the end of incoming cables; Direct lightning strike, conduction thunder, induction thunder are implemented end of incoming cables department level protection;
2) the arrester circuit distance of one-level arrester that is installed on distribution end and requires distance in the second level is greater than 10 meters; Be struck by lightning energy and lightning wave reflection, indirect lightning strike of the remnants of elementary protection protected;
3) third level arrester is installed on by the protection equipment end,,, surpasses 10 meters and then need append the one-level arrester, prevents the lightning wave reflection and in being not more than 10 meters by the distance of the circuit between the protection equipment greater than 10 meters apart from the circuit of second level arrester distance;
4) ground connection way: require all exposed metal support component reliably to be connected with ground connector, after field trial, the self-tapping screw of employing M5 carries out hinged, and ground connector is no less than place, two diagonal angles and original roof lighting proof strip reliable soldering after forming ring-type;
5) increase lightning protection grounding network at one week of photovoltaic module periphery and the middle escape way place of roofing, adopt 25 * 4 galvanizing band irons, and be connected with original roof lighting proof strip reliable soldering, weld adopts 2 times red lead anti-corrosive paints to do preservative treatment, and brushes aluminium paint 2 times.
Claims (1)
1. the job practices of a glass film photoelectric curtain wall is characterized in that: comprise the following steps:
(1) support is installed: at first on agent structure, carry out sign, the good line of bullet punches, gluing in the hole, handles the support positioning and fixing again to carrying out water-tight around the hole then;
(2) roofing is laid
1. photovoltaic module by the design pitch marshalling and be fixed on support or connector on;
2. leave installing space and heat radiation gap between photovoltaic module and the building coats, this gap must not be clogged by foreign material such as constructions;
3. the roofing photovoltaic square formation is arranged according to minimal channel width 500mm;
(3) cable testing bridge is installed
1) before cable testing bridge is installed,, at first carries out the unwrapping wire location, suspension bracket is installed with the position that civil engineering water service pipe, the specialty of ventilating are coordinated; The suspension and support spacing is chosen span by line of load and is supported; Span is 1.5m～3m, and when vertically installing, the fixed point spacing is not more than 2m;
2) after suspension bracket, support are installed and are finished; Carry out trailing arm and install, trailing arm uses brace to fix with hanging between the support, and is vertical can the gravitate run-off the straight not sagging to guarantee between support and the crane span structure body maintenance; Erection bridge body again; It is fixing that the crane span structure body uses junction plate to connect, and with set bolt the body of a bridge is fixed on the trailing arm, in case the crane span structure slippage;
Height off the ground when 3) the cable testing bridge level is installed is not less than 2.5m, when vertically installing apart from ground 1.8m;
When 4) the cable testing bridge level is installed, choose best span by line of load and carry out support fixation; Several groups of cable testing bridges are provided with maintenance, maintenance distance between each adjacent cable crane span structure when the parallel installation of sustained height;
5) on cable testing bridge continuously apart from cabling, the filling rate in cable cross section in crane span structure, power cable is not more than 40%, control cables is not more than 50%;
6) cable testing bridge is parallel with various pipelines or when intersecting, its minimum near is apart from meeting following requirement:
7) the every road of cable testing bridge is adopted and is no less than 2 place's reliable grounds, and ground connection adopts the galvanizing band iron to be connected ground resistance≤1 Ω with natural grounding substance;
(4) electric wire lays
1) lead connects
The crimping method is adopted in the connection of lead in case, box, uses wiring terminal and copper or aluminum casing, wire clamp to connect; The sub-thread aluminum core line adopts the wiring of insulation spiral to turn round connection; During being connected between lead and electric terminal, sub-thread copper or aluminium core and conductor cross-section are 25.mm
2And below the multiply copper conductor directly connect, the core of multiply copper conductor is adopted connect again after tightening, ward off tin earlier; Multiply copper conductor and conductor cross-section surpass 2.5mm
2Many copper conductors crimp type terminal after be connected with the terminal of electric device again; Copper, aluminum conductor are connected and use copper-aluminium transition terminal, copper-aluminium transition sleeve pipe or copper-aluminium transition wire clip to connect, and copper, when aluminium terminal is connected copper tip are done and ward off tin and handle; When using the crimping method to connect lead, the specification of wiring terminal copper or aluminum casing, pressing mold is consistent with the core cross section;
2) color mark of insulated electric conductor or bare conductor in the circuit:
Exchanging three-phase circuit: L1 is yellow mutually; L2 is green mutually; L3 is red mutually; The neutral conductor is light blue; The protection ground wire is yellowish green alternate color; Greenish-yellow Double-colour horn wire only is used for the mark protection grounding can not be used for other purposes; Light blue is used for neutrality or medium line;
3) calculate every cable length by design and Actual path before laying, arrange every dish cable, the minimizing cable connector;
4) minimum bending radius of cable meets: control cables and polyvinyl chloride insulation power cable are not less than 10D, and power cable with cross-linked polyethylene insulation is not less than 15D, and D is the outside diameter of cable here;
5) during cable laying, cable is drawn from the upper end of dish;
6) layout of power cable connector
1. the cable that lays side by side, stagger each other in the position of its joint;
2. the joint during the cable surface is put fixing with the supporting plate holder;
3. there is the protection box of the mechanical damage of preventing direct-buried cable connector box outside; Be positioned at the protection box of frozen soil layer, annotate in the box with pitch;
7) installing of sign board
In cable terminal, cable connector, corner, interlayer, in the two ends of tunnel and vertical shaft, people's well; Install sign board on the cable, indicate circuit number on the sign board, when not having numbering; Write cable model, specification and origin exactly, the cable that parallel connection is used has serial number;
8) cable that lays of vertical run or the inclination above 45 ° is in each support place; Every on the crane span structure at a distance from the 2m place; The cable of horizontal laying is at the place, two ends of cable head and end and turning, cable connector; When the cable spacing is had requirement, every at a distance from the 5-10m place; Fixedly adhering to specification of single-core cable;
9) fireproofing of cable is fire-retardant
Pass vertical shaft, wall, floor or get into the hole place of electrical panel, cabinet at cable, with the closely knit shutoff of fire prevention calking; In cable trench and tunnel, segmentation or answer the soft flame-proof material that fire resisting wall is set on request to the cable in important loop, in the special raceway groove that is laid in separately or in the fire-resistant enclosed slot box, or applies fireproof paint, fire prevention band to it; In the power cable connector both sides and the long section of adjacent cable 2-3 apply fireproof paint or fire prevention band, adopt fire-resistant or flame retardant type cable;
(5) the direct current header box install, wiring: by design and installation figure carry out frame, rack is installed screw and must be tightened; Frame, machine apart from install should with the inlet wire position alignment; During installation, should adjust level, verticality, deviation and be not more than 3mm; The installation drawing, the design arrangement figure that provide by the supplier carry out the distribution installation; The metal base of frame, rack, distributing frame is all carried out ground connection connection; Before the termination, the rack inner cable performs colligation, should leave 1 meter mobile surplus; Be ready to distributing frame termination table before the termination, cable termination carries out according to the termination table; The cable that gets in the rack from the scene at first will carry out the verification numbering, will fix from the cable that the scene gets in the rack; Get into the cable in the rack from the scene, should leave surplus; The cable that gets in the rack from the scene does not admit of joint;
(6) low-voltage distribution cabinet installation, wiring
When 1) in a row the length of power distribution cabinet surpassed 6m, the outlet in this chamber or other rooms was led in the passage setting behind the cabinet, and outlet is arranged in the both sides of passage, when the distance between two outlets surpasses 15m, also increased export therebetween;
2) designing requirement of construction drawing is pressed in the plan-position of low-voltage distribution cabinet, the locus unified standard size Control in the reference lamina vertical shaft;
3) independent low-voltage distribution cabinet is only looked for cabinet face and lateral vertical side degree;
4) become the row power distribution cabinet in place after, look for the cabinet at two ends earlier, little line is tightened in supreme 2/3 high position under the cabinet again; By the platform centering, nonstandard like cabinet, be as the criterion with the cabinet face; Adopt the 0.5mm iron plate to adjust during centering, every place pad can not surpass 3, the size of pressing set bolt then at most; With Electric portable drill boring, low-voltage distribution cabinet is fixed with the galvanized bolt of M12 on the foundation trench steelframe;
5) in a row power distribution cabinet is fixed with bolt between cabinet and the cabinet, according to the difference of the height of cabinet, selects corresponding fixed point;
(7) inverter is installed
1) it is smooth that photovoltaic combining inverter requires to install ground, around the rack enough spaces arranged, and is convenient to heat radiation and safeguards that headroom is not less than 50cm, and the space, back is not less than 50cm, and rack the place ahead can not be less than 80cm;
By assembly access situation divide single group conspire to create, organize more conspire to create, centralized;
2) be connected with photovoltaic array: design during with group serial type photovoltaic array that 100KW photovoltaic inverter is connected photovoltaic array both positive and negative polarity open-circuit voltage be no more than 880V;
3) be connected with electrical network: as long as the three phase network electric voltage frequency meets the requirements, photovoltaic combining inverter gets final product operate as normal, voltage range: 310V～450V, frequency range: 47HZ～51.5HZ;
4) DC side wiring: the maximum open circuit voltage of photovoltaic module is no more than 880V, and not charged when connecting the input cable, promptly the line breaker of DC power distribution cabinet must be in off-state; Measure the input voltage positive-negative polarity with universal meter, avoid importing polarity and connect instead; Just just connecing input terminal with input, to import the negative input terminal that connects;
5) AC side wiring: when connecting the electric current electrical network, AC side is not charged, and promptly the line breaker of AC power distribution cabinet/AC distribution panel is in off-state;
6) ground wire wiring: the ground connection copper bar of photovoltaic DC-to-AC converter reliably is connected with the earth gets final product;
(8) ground device is installed
1) ground device is installed: natural grounding substance, and utilize no waterproof base plate reinforcing bar or deep foundation to do ground connector, by designing requirement, the base plate bar splicing is welded; Two reinforcing bar and base plate reinforcing bars that face the diagonal angle mutually in the post are welded, and main muscle in the post is used the colour code marked, the colour code color is separated with the color of using on the civil works in same construction unit;
2) the ground connection main line lays: surface is established dismounting and the maintenance that ground wire does not hinder equipment; Grounding wire is answered level or vertical run, or along the building surface parallel lay-up; When grounding wire laid along building walls, the ground connection main line was not less than 200 ㎜ apart from ground, be not less than 10m apart from metope, and the horizontal range between supporter is 1m, and vertical component is 1.5m, and round part is divided into 0.5m; The grounding wire surface brush that surface is established is pitch-dark, but ground connection clamp and connect terminal etc. and locate not brush oil; When through walls, casing protection is crossed over the shrinkage joint; Carefully connect the wire and guide the place, building entrance into, be marked with black ground connection sign;
(9) monitoring system is installed
1) environment temperature sensor: adopt radiation shield to realize anti-spoke, the plane parallel of total solar radiation sensor and photovoltaic module, deviation be no more than ± and 2 °;
2) measuring equipment is installed: the photovoltaic system environment temperature sensor is installed in the sun-shading ventilating place of photovoltaic module central point equal height, in photovoltaic module 1.5m-10m scope; The assembly surface temperature pick up is installed in the center at the photovoltaic module back side; The total solar radiation sensor is installed on the important actor;
3) data acquisition unit is installed: the data acquisition unit construction and installation meet the regulation among " instrument and meter for automation engineering construction and standards of acceptance " GB50093; The holding wire conductor adopts shielding line, avoids and the strong parallel cabling of signal cable, or uses the steel pipe shielding; It is clear that the sign of signal keeps, and the pressure reduction between the multi-analog input signal of a module is not more than 24V;
(10) anti-backflow device is installed: anti-backflow device is installed in the photovoltaic plant AC power distribution cabinet/AC distribution panel, the current signal of distribution transformer low-pressure side and voltage signal acquisition in AC power distribution cabinet/AC distribution panel;
(11) lightning protection facility is installed
1) first order power arrester is installed on the end of incoming cables; Direct lightning strike, conduction thunder, induction thunder are implemented end of incoming cables department level protection;
2) the arrester circuit distance of one-level arrester that is installed on distribution end and requires distance in the second level is greater than 10 meters; Be struck by lightning energy and lightning wave reflection, indirect lightning strike of the remnants of elementary protection protected;
3) third level arrester is installed on by the protection equipment end,,, surpasses 10 meters and then need append the one-level arrester, prevents the lightning wave reflection and in being not more than 10 meters by the distance of the circuit between the protection equipment greater than 10 meters apart from the circuit of second level arrester distance;
4) ground connection way: require all exposed metal support component reliably to be connected with ground connector, after field trial, the self-tapping screw of employing M5 carries out hinged, and ground connector is no less than place, two diagonal angles and original roof lighting proof strip reliable soldering after forming ring-type;
5) increase lightning protection grounding network at one week of photovoltaic module periphery and the middle escape way place of roofing, adopt 25 * 4 galvanizing band irons, and be connected with original roof lighting proof strip reliable soldering, weld adopts 2 times red lead anti-corrosive paints to do preservative treatment, and brushes aluminium paint 2 times.
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| CN 201110408439 CN102518310B (en) | 2011-12-09 | 2011-12-09 | Construction method of photoelectric curtain wall of glass film |
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| CN107589641A (en) * | 2016-07-07 | 2018-01-16 | 富士施乐株式会社 | Charge member, handle box and image processing system |
| CN112609917A (en) * | 2020-12-18 | 2021-04-06 | 保定嘉盛光电科技股份有限公司 | Vertical face installation mode based on photovoltaic wall brick |
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| CN109911134A (en) * | 2019-03-15 | 2019-06-21 | 中国能源建设集团安徽电力建设第一工程有限公司 | Water surface floating photovoltaic power generation construction method |
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| CN112609917B (en) * | 2020-12-18 | 2022-05-17 | 保定嘉盛光电科技股份有限公司 | Vertical face installation mode based on photovoltaic wall brick |
| CN113819343A (en) * | 2021-09-30 | 2021-12-21 | 上海宝冶集团有限公司 | Method for fixing super heat-insulating material of water beam column of heating furnace |
| CN113819343B (en) * | 2021-09-30 | 2022-11-08 | 上海宝冶集团有限公司 | Method for fixing super heat-insulating material of water beam column of heating furnace |
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| CN102518310B (en) | 2013-11-06 |
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