CN102163644B - Method and device for manufacturing wide solar module rear panel - Google Patents

Method and device for manufacturing wide solar module rear panel Download PDF

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Publication number
CN102163644B
CN102163644B CN2010105154385A CN201010515438A CN102163644B CN 102163644 B CN102163644 B CN 102163644B CN 2010105154385 A CN2010105154385 A CN 2010105154385A CN 201010515438 A CN201010515438 A CN 201010515438A CN 102163644 B CN102163644 B CN 102163644B
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tension
basement membrane
tension force
solar battery
battery group
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CN102163644A (en
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陆祖宏
王鹏
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ZHEJIANG HAFLON NEW ENERGY CO Ltd
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ZHEJIANG HAFLON NEW ENERGY CO Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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Abstract

The invention discloses a device for manufacturing a wide solar module rear panel, which comprises an unwinding device, a pretreatment device, a coating device, a multi-stage drying device formed by connecting a group of ovens in series, a cooling system and a rewinding device, which are connected in turn so as to perform unwinding, impurity and static electricity removal, coating, drying, cooling and rewinding treatment on a base film in turn to form the solar module rear panel. The device for manufacturing the solar module rear panel also comprises a tension monitoring system comprising a first tension monitoring device, a second tension monitoring device, a group of third tension monitoring device, a fourth tension monitoring device and a master controller which is connected with the tension monitoring devices, wherein the tension monitoring devices respectively detect the base film tension transmitted in the unwinding device, the pretreatment device, each oven of the multi-stage drying device and the rewinding device and correspondingly increase or reduce the base film tension in the stage under the control of the master controller.

Description

Manufacture method and the manufacturing installation of wide cut solar battery group backboard
Technical field
The present invention relates to a kind of manufacture method and manufacturing installation of solar battery group backboard, particularly a kind of manufacture method and manufacturing installation of wide cut solar battery group backboard.
Background technology
Along with the quickening of process of industrialization, energy resource consumption is increasing, and the finiteness that conventional energy resource is supplied with and the increase of environmental protection pressure impel the mankind to remove the development and utilization new forms of energy.Cause the attention in the world as the solar energy of one of new forms of energy.Industrialized country drops into one after another huge fund and researches and develops utilization, and attempt keeps it at leading position on solar energy industry and the ascendancy on market.
Along with the proposition of low-carbon economy target, as the most potential energy of 21 century, the development potentiality of photovoltaic industry is huge.Along with growing continuously and fast of photovoltaic industry, the demand of its auxiliary products also increases day by day.The raw material of solar module production are polysilicon, cell package backboard, EVA glued membrane, face glass, electrode interconnecting strip, scolding tin and scaling powder etc.At present, the solar module raw material are not except backboard also domesticizes, and other products are all realized production domesticization.Occupy an leading position with the import backboard in market at home, expensive, and all the other materials all need not import, adopts the production domesticization material significantly to reduce costs.Along with growing continuously and fast of photovoltaic industry, demand and the production domesticization of its auxiliary products backboard are brought into schedule.Therefore, the special-purpose backboard localization of solar module is very necessary.
Existing import backboard is mainly take the film composite construction as main, and wherein take the Tedlar PVF film of Du Pont as main supplier, two-sided compound PFT forms backboard by binding agent.The supply of material of TPT is subject to the production capacity restriction of DUPONT company to a great extent, and the supply of material is not very stable, and on the high side.And because use binding agent compound, very high to the weatherability requirement of binding agent, delamination easily appears.
As adopt coating processes, three layers of original creation without plastic structure, has obviously reduced the backboard layering.Surface filming is fine and close, has overcome the drawback of the easy layering bubbling of conventional adhesive composite membrane, has reduced the transmitance of basement membrane steam, has improved its weatherability.The fluorine rete is through special processing, and any one side all can realize that perfection is bonding with any a qualified EAV glue, and with EVA, very high peel strength is arranged, and greatly reduces the probability of happening that the assembly backboard bubbles.Concrete technology be with high-weatherability can the fluorine material, the PET film by coating processes and high barrier, high mechanical properties is combined into solar module special use backboard.
This material has ageing-resistant, corrosion-resistant, the performance such as resistant is hydrophobic of fluoroplastics high-quality and the mechanical strength of PET polyester film excellence, and it can prevent effectively that other medium such as water, oxygen, corrosive gas, liquid (as acid rain) etc. are to the erosion of silicon chip of solar cell.The weatherability of backboard, electric insulating quality, barrier, cementability satisfy the instructions for use of solar module fully.
In conventional art, above-mentioned solar cell module back veneer adopts the PET film more, the disposable productions of completing backboard of step such as mistake unreels, preliminary treatment, coating, oven dry, trimming, arrangement, rolling.Yet the problems such as the coating that adopts in the coating procedure due to the PET film, solvent, additive, described PET film can discharge a large amount of organic gass in follow-up drying course, these organic gass contain harmful and noxious substance, as direct discharging, can cause serious pollution to atmosphere.Conventional art has, the exhaust collection modes that adopt collect above-mentioned organic gas and process more, yet this method needs higher cost and extra device to come the above-mentioned waste gas of collection and treatment, and also can face leakage and secondary pollution problems in collection and processing procedure.
Simultaneously, process in the process of PET film in processing, the tension force of PET film must strictly be controlled, otherwise fold can appear, monolateral degree of tightness is the situations such as stretcher strain.In existing manufacture method, the tension force of PET film is monitored according to a single standard, and corresponding many are adopted a single tension monitor that the tension force of PET film is monitored before coating.So adopting the PET film of conventional art manufacturing fold, monolateral degree of tightness to occur is that the probability of the situation such as stretcher strain is larger.Formally be subject to the restriction of above-mentioned situation, adopt conventional art, can only make the backboard of little wide cut, and can't make large wide cut backboard, particularly wide cut reaches the super large wide cut backboard of 2m.Simultaneously, these situations have also caused the rate of finished products of conventional art manufacturing solar energy backboard low higher with production cost.
Summary of the invention
One of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, and it carries out preliminary treatment, coating, oven dry, cooling to basement membrane successively, to make solar cell backboard.
Two of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, and it carries out preliminary treatment, coating, oven dry, cooling to basement membrane successively, to make the wide cut solar cell backboard.
Three of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, it unreels, preliminary treatment, baking oven, wrap-up place has respectively the tension force supervising device, with segment monitoring tension force everywhere, avoid the problems such as overtension or the too small fold that causes, monolateral degree of tightness and lax distortion.
Four of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, and it has individual tension force supervisory control system, and segment monitoring unreels, the tension force of preliminary treatment, baking oven, wrap-up, thereby effectively avoids the problem of the very easily lax distortion of wide cut basement membrane.
Five of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, and it has multistage baking oven, and the multistage oven dry that the basement membrane after applying is had temperature gradient is to avoid the problems such as the shock heating oven dry inequality of bringing and face checking.
Six of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, it has the waste gas treatment thermal cycle system, its waste gas that utilizes oven dry to produce carries out catalytic combustion, and the combustion heat is carried out Dual heat exchange, with heating, drying required air and pending waste gas, for baking oven provides temperature required and make waste gas reach catalytic combustion temperature required, thereby make just spontaneous combustion when exhaust gas concentration reaches predetermined value.
Seven of purpose of the present invention is to provide a kind of manufacture method of solar battery group backboard, and it has preliminary treatment, coating, oven dry, cooling step, makes the solar battery group backboard with the processing basement membrane.
Eight of purpose of the present invention is to provide a kind of manufacture method of solar battery group backboard, and it has preliminary treatment, coating, oven dry, cooling step, makes wide cut solar battery group backboard with the processing basement membrane.
Nine of purpose of the present invention is to provide a kind of manufacture method of solar battery group backboard, it unreels, preliminary treatment, baking oven, rolling step have respectively the tension force monitoring step, with segment monitoring tension force everywhere, avoid the problems such as overtension or the too small fold that causes, monolateral degree of tightness and lax distortion.
Ten of purpose of the present invention is to provide a kind of manufacture method of solar battery group backboard, and it adopts the multistage furnace drying method with temperature gradient, and the basement membrane after applying with oven dry is avoided the problems such as the shock heating oven dry inequality of bringing and face checking.
11 of purpose of the present invention is to provide a kind of manufacture method of solar battery group backboard, and it adopts the multistage cooling means with temperature gradient, with the basement membrane after cooling oven dry, avoids the problems such as inhomogeneous cooling that quenching brings and face checking.
12 of purpose of the present invention is to provide a kind of manufacturing installation of solar battery group backboard, and it is for the manufacture of the on-plane surface backboard.
to achieve these goals, the invention discloses a kind of solar battery group backboard manufacturing installation, it comprises a unwinding device that is connected successively, a pretreatment unit, a coating unit, a multi-stage drying device, a cooling system and a wrap-up, described basement membrane transmits successively through said apparatus, described solar battery group backboard manufacturing installation further comprises a waste gas treatment thermal cycle system and a tension force supervisory control system, described waste gas treatment thermal cycle system connects described multi-stage drying device, described multi-stage drying device is mutually connected by one group of baking oven and is formed.
Described tension force supervisory control system comprises first a tension force supervising device, second a tension force supervising device, one group of the 3rd tension force supervising device, the 4th a tension force supervising device, and a master controller that is connected with above-mentioned each supervising device.
It is inner that described the first tension force supervising device is arranged on described unwinding device, is used for monitoring described unwinding device place basement membrane tension force.Described the first tension force supervising device comprises first tension detector and first tension control roll.
It is inner that described the second tension force supervising device is arranged on described pretreatment unit, is used for monitoring described pretreatment unit place basement membrane tension force.Described the second tension force supervising device comprises second tension detector and second tension control roll.
Described each the 3rd tension force supervising device is separately positioned in each baking oven of described multi-stage drying device, is respectively used to monitor described each baking oven place basement membrane tension force.Described the 3rd tension force supervising device comprises the 3rd tension detector and the 3rd tension control roll.
It is inner that described the 4th tension force supervising device is arranged on described wrap-up, is used for monitoring described wrap-up place basement membrane tension force.Described the 4th tension force supervising device comprises the 4th tension detector and the 4th tension control roll.
The tension data everywhere that described the first tension detector, the second tension detector, the 3rd tension detector and the 4th tension detector record to described master controller transmission respectively.Described master controller internal preset has the tension range data in the stage of unreeling, pretreatment stage, baking stage and rolling stage.Described master controller is compared the tension data of receiving with the default tension range in this stage, when the tension data that records during during lower than the lower limit of default tension range or higher than the higher limit of default tension range, the position of corresponding tension control roll is controlled and adjusted to described master controller, thereby increase or reduce the tension force of the basement membrane in this stage.
Preferably, described the first tension detector, the second tension detector, the 3rd tension detector and the 4th tension detector are tension pick-up, pressure sensor, pressure detector etc.
Described unwinding device comprises one and unreels support and be arranged on a described unreeling shaft that unreels on support.One volume basement membrane as the PET film, is placed on described unreeling on support, and described unreeling shaft passes this volume basement membrane and unreels with the rotation of controlling this volume basement membrane, and described unreeling shaft is single shaft gas locked stationary air-expanding shaft.Described basement membrane transmits successively through described support, described the first tension detector and described the first tension control roll of unreeling.
Described the first described basement membrane of tension control roll traction makes described basement membrane unreel from described that support unreels and transfer to described pretreatment unit under the draw of described the first tension control roll.Described the first tension detector is arranged on described unreeling between support and described the first tension control roll.Described the first tension detector detects the tension force of the basement membrane of transmission on it, and give described master controller with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from the preset value in master controller, master controller is adjusted the position of described the first tension control roll, thereby adjusts the tension force of described basement membrane.
Described pretreatment unit comprises a dust cleaning apparatus and a Destaticizing device.Described dust cleaning apparatus and described Destaticizing device are respectively used to remove impurity and the described epilamellar static such as described epilamellar greasy dirt, dust.Described basement membrane transmits successively through described dust cleaning apparatus, described Destaticizing device, described the second tension control roll and described the second tension detector.
Described the second tension control roll traction transfers to the basement membrane of described pretreatment unit, makes described basement membrane transmit successively through described dust cleaning apparatus and described Destaticizing device, to remove successively impurity and the static such as greasy dirt on it, dust.Pretreated basement membrane transfers to described coating unit under the draw of described the second tension control roll.Before transmission enters described coating unit, described the second tension detector detects the tension force of the basement membrane of transmission on it, and give described master controller with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from the preset value in master controller, master controller is adjusted the position of described the second tension control roll, thereby adjusts the tension force of described basement membrane.
Described coating unit is for comprising an applicator roll, and a carrying roller, a metering roll and pressure roller tangent with described applicator roll respectively.Described carrying roller screws out adhesive tape and go out described coating from the coating material cartridge that applies basement membrane, and rotation is given described applicator roll through the described applicator roll tangent with it with the paint transfer on it along its axial-rotation.According to default coating thickness, adjust tangent applicator roll and the spacing between described metering roll, to control the coating thickness of basement membrane.The rotation of described applicator roll is through described metering roll, controlling the paint thickness on described applicator roll, and continues rotation through the described pressure roller tangent with it.
Described coating unit is preferably the three reverse coating units of roller, tangent line coating unit or other applicable coating units.
The basement membrane that transfers to described coating unit passes described applicator roll and described pressure roller along the tangential direction between described applicator roll 32 and described pressure roller 34, described applicator roll and described pressure roller make described basement membrane along transmission direction to the place's transmission of described multistage heat cycle drying system to turning, the described pressure roller preset pressure of exerting pressure to described applicator roll place, make and both push described basement membrane also and then make the coating on described applicator roll be coated on described basement membrane, form coating.
Preferably, described applicator roll is flat coating roller or on-plane surface applicator roll, and namely the outer surface of described applicator roll is planar structure or nonplanar structure.
When described applicator roll is the on-plane surface applicator roll, its outer surface is provided with a baseplane and establishes one group of patterning projection (patterned protrusion), and described patterning projection is the projection of striated projection, rhombus projection, block-like protrusions or other preset shapes.
Preferably, on the outer surface of described applicator roll, the Area Ratio between described baseplane and described patterning projection is 1: 1.
Be coated with coating on basement membrane after described coating unit is processed, basement membrane transfers to described multistage heat cycle drying system and carries out drying and processing subsequently.
Described multi-stage drying device comprises one group of baking oven of mutually connecting and one group of pipeline that is arranged on respectively on corresponding baking oven, the hot-air that the waste gas that described baking oven produces by corresponding separately pipeline output oven dry respectively and input have uniform temperature as the thermal source heated oven to reach the baking needed temperature.
Basement membrane after described coating transmits successively and enters each baking oven, and is heated oven dry in each baking oven.
Preferably, the bake out temperature of described each baking oven is different, forms certain temperature gradient, thereby forms a multi-stage drying device.
Preferably, described each pipeline further comprises first arm and second arm.Waste gas in respectively will be the separately corresponding described baking oven of described the first arm transfers to described waste gas treatment thermal cycle system, and described the second arm will transfer to respectively in corresponding separately described baking oven through the hot-air of waste gas treatment thermal cycle system heating.
Preferably, further be provided with an adjuster valve on described each second arm, it is used for regulating the flow of the hot-air that most the second arms provide to described baking oven.Enter the flow of the hot-air of described each baking oven by adjusting, control the temperature of described each baking oven, thereby form different bake out temperatures in described each oven interior, form the Multi-level drying system with temperature gradient.
Described waste gas treatment thermal cycle system comprises a First Heat Exchanger, a catalytic bed, a combustion chamber and second heat exchanger.
Described First Heat Exchanger and described the second heat exchanger are cold fluid one hot fluid heat exchanger.Described First Heat Exchanger has the first cold fluid entrance, the first cold fluid outlet, the first hot fluid entrance and the outlet of the first hot fluid.Described the second heat exchanger has the second cold fluid entrance, the second cold fluid outlet, the second hot fluid entrance and the outlet of the second hot fluid.
described the first cold fluid entrance connects described the first arm, described the first cold fluid outlet connects an end of described combustion chamber by described catalytic bed, described the first hot fluid entrance connects the other end of described combustion chamber, described the first hot fluid outlet connects the second hot fluid entrance of described the second heat exchanger, gas after described the second hot fluid outlet output burning in the atmosphere is processed or the gas after the output burning is processed in the exhaust gas processing device, described the second cold fluid entrance input air or go out air after input purifies from air cleaning unit from atmosphere, described the second cold fluid outlet connects described each second arm.
The waste gas of discharging from described each baking oven collects through corresponding described each second arm, transfers to described waste gas treatment thermal cycle system.Above-mentioned waste gas enters described First Heat Exchanger from the porch transmission of described cold fluid and carries out heat exchange (concrete heat exchange is described in detail hereinafter), and also passing subsequently described catalytic bed enters described combustion chamber from described the first cold fluid exit discharge.Described waste gas in combustion chamber, burns under the catalytic action of catalytic bed again, and its contained organic gas burning conversion is harmless nitrogen oxide and water.Waste gas after burning is processed enters described First Heat Exchanger from the first hot fluid porch transmission and carries out heat exchange, subsequently from described the second hot fluid outlet.
Waste gas after burning enters described the second heat exchanger from described the second hot fluid porch transmission after heat exchange, and carries out heat exchange with air from described the second cold fluid porch input, discharges from the second hot fluid exit subsequently.EGT reduces after the burning of heat exchange, and the air themperature after heat exchange raises, it is from the exit discharge of described cold fluid, form hot-air, this hot-air enters described each second arm that is connected with described cold fluid outlet subsequently, and transfer to respectively corresponding described each baking oven, thereby be used for heating described baking oven so that the temperature of baking needed to be provided.
be provided with described the 3rd a tension force supervising device in described each baking oven, described basement membrane is described the 3rd tension detector of transmission process successively and described the 3rd tension control roll in described each baking oven, described the 3rd described basement membrane of tension control roll traction transmits successively and passes described drying unit, described the 3rd tension detector detects the tension force of the basement membrane of transmission on it, and give described master controller with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from the preset value in master controller, master controller is adjusted the position of described the 3rd tension control roll, thereby adjust the tension force of described basement membrane.
Preferably, regulate described adjuster valve, thereby adjust the hot air flowrate of corresponding the second arm, thereby adjust the internal temperature of corresponding baking oven, make the bake out temperature of described baking oven different, form multistage oven dry.When described basement membrane transmits through described baking oven successively, in different baking ovens, carry out multistage oven dry through different bake out temperatures.
Described basement membrane is through the oven dry of described drying unit, and transmission enters described cooling system.
Described cooling system comprises one group of air knife and one group of chill roll successively along the basement membrane transmission direction.Described air knife is positioned at the top that described basement membrane applies cated that side, its with normal temperature air supercharging after-blow to described basement membrane, with cooling described basement membrane.The inside of described chill roll is filled with the liquid of cooling use, is generally water, and described each chill roll is tangent successively, and described basement membrane is successively through traction and the extruding of described each chill roll, and in above-mentioned contact transmitting procedure, described basement membrane is cooled.
Preferably, regulate the temperature of described chill roll internal coolant, thereby adjust the temperature of corresponding chill roll, thereby form multistage cooling.When described basement membrane transmits through described chill roll successively, at different chill roll places, carry out multistage cooling through different chilling temperatures.
Transfer to described wrap-up through cooling basement membrane.Described wrap-up is preferably a double translation frame formula wrap-up.Described basement membrane transmits successively through described the 4th tension detector and described the 4th tension control roll, transfers to subsequently described double translation frame formula wrap-up and carry out the rolling cutting under the traction of described the 4th tension control roll.Wherein, described the 4th tension detector detects the tension force of the basement membrane of transmission on it, and give described master controller with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from the preset value in master controller, master controller is adjusted the position of described the 4th tension control roll, thereby adjusts the tension force of described basement membrane.
So far, that described basement membrane passes through successively is anti-roll, preliminary treatment, coating, oven dry, cooling and rolling, is processed to required solar battery group backboard.
Preferably, described basement membrane adopts the PET film.
Preferably, described basement membrane adopts the fluoro containing polymers resin to apply, as polyvinyl fluoride, Kynoar, polytetrafluoroethylene, perfluoroethylene-propylene, fluorubber, chlorotrifluoroethylene-alkyl vinyl ether co-polymer, or two or more the mixture in above-mentioned fluoro containing polymers resin.
The present invention further discloses and adopt solar battery group backboard manufacturing installation of the present invention, adopt basement membrane, as the PET film, make the method for solar battery group backboard, it comprises the following steps:
Step 1: basement membrane is provided
Step 2: static and the impurity of removing described membrane surface;
Step 3: evenly apply fluorine material, coating layer thickness 0.04mm～0.06mm on described basement membrane;
Step 4: step 3 gained basement membrane is dried under 75 ℃～85 ℃, 95 ℃～105 ℃, 115 ℃～125 ℃ conditions successively, and drying time amounts to 8 minutes;
Step 5: adopt air-cooled step 4 gained basement membrane to be cooled to 75 ℃～85 ℃, adopt subsequently chill roll that basement membrane further is cooled to room temperature;
Step 6: arrange step 5 gained basement membrane and rolling.
Preferably, in described step 3, adopt the on-plane surface applicator roll that basement membrane is applied.The outer surface of described applicator roll is provided with a baseplane and establishes one group of patterning projection (patternedprotrusion).Preferably, on the outer surface of described applicator roll, the Area Ratio between described baseplane and described patterning projection is 1: 1.Preferably, the height of the patterning projection of described applicator roll is 0.04mm～0.06mm.The maximum coating layer thickness of described epilamellar coating is that 0.08mm～0.12mm and minimum cover thickness are 0.04mm～0.06mm.
In described step 4, adopt described multistage heat cycle drying system to carry out multistage oven dry, first order bake out temperature is that 75 ℃～85 ℃, drying time are 1～3 minute; Second level bake out temperature is 95 ℃～105 ℃, drying time 2～4 minutes; Third level bake out temperature is 115 ℃～125 ℃, drying time 2～4 minutes.
Preferably, described first order bake out temperature is that 80 ℃, drying time are 2 minutes.
Preferably, described second level bake out temperature is that 100 ℃, drying time are 3 minutes.
Preferably, described third level bake out temperature is that 120 ℃, drying time are 3 minutes.
In described step 5, preferably adopt one group of air knife, be cooled to 80 ℃ with described basement membrane is air-cooled.
In described step 5, preferably adopt chill roll that described basement membrane is carried out multistage cooling, at first carry out the first order cooling, basement membrane is cooled to 60 ℃～70 ℃, carries out subsequently the second level cooling, basement membrane is cooled to 35 ℃～45 ℃, carry out at last the third level cooling, basement membrane is cooled to 20 ℃～30 ℃.
Preferably, adopt the first order cooling, basement membrane is cooled to 65 ℃.
Preferably, adopt the second level cooling, basement membrane is cooled to 40 ℃.
Preferably, adopt the third level cooling, basement membrane is cooled to 25 ℃.
In described step 6, adopt described wrap-up to carry out the operations such as automatic winding, cutting.
In order to reduce basement membrane deformation in process of production, in described step 1, step 2, step 4 and step 6, further comprise the tension force monitoring step.
Preferably, described step 1 is further comprising the steps:
Step 1.1: basement membrane is unreeled;
Step 1.2: detect the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 30～50 kilograms;
Step 1.3: export described basement membrane.
Preferably, described step 2 is further comprising the steps:
Step 2.1: the impurity of removing described membrane surface;
Step 2.2: the static of removing described membrane surface;
Step 2.3: detect the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 30～50 kilograms;
Step 2.4: export described basement membrane.
Preferably, described step 4 is further comprising the steps:
Step 4.1.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 5～10 kilograms;
Step 4.1.2: be 2 minutes with basement membrane drying time under 80 ℃ of conditions of gained;
Step 4.2.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 5～10 kilograms;
Step 4.22: be 3 minutes with basement membrane drying time under 100 ℃ of conditions of gained;
Step 4.3.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 5～10 kilograms;
Step 4.3.2: be 3 minutes with basement membrane drying time under 120 ℃ of conditions of gained.
Preferably, step 6 is further comprising the steps:
Step 6.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 20～30 kilograms;
Step 6.2: arrange basement membrane and the rolling of gained.
Preferably, described basement membrane is the PET film.
Preferably, adopt the fluoro containing polymers resin to apply in described step 3, as polyvinyl fluoride, Kynoar, polytetrafluoroethylene, perfluoroethylene-propylene, fluorubber, chlorotrifluoroethylene-alkyl vinyl ether co-polymer, or two or more the mixture in above-mentioned fluoro containing polymers resin.
Adopt method of the present invention and device, take basement membrane as the basis, can produce the solar cell module back veneer of wide cut, the disposable productions of completing backboard of step such as wherein said basement membrane process unreels, preliminary treatment, coating, oven dry, trimming, arrangement, rolling, wide cut can reach 2M, and production efficiency is higher.
Device of the present invention adopts the waste gas treatment thermal cycle system with catalytic combustion device and heat exchanger to carry out exhaust-gas treatment, and its main purpose has two: make the waste gas after processing reach the environment protection emission requirement; Reclaim heat and carry out the recycling energy-conservation requirement that reaches.The operation principle of described thermocirculator is mainly to utilize high heat waste gas that baking oven is discharged to enter catalytic bed and the combustion chamber of thermocirculator, carry out flameless combustion under (200～400 ℃) at low temperatures by catalyst (noble metals such as palladium, platinum), thereby realize the complete oxidation to organic exhaust gas, pernicious gas is decomposed into harmless nitrogen oxide, oxycarbide and water, be generally carbon dioxide and steam, reach the requirement of environment protection emission.Purified gas passes through heat exchanger, the waste gas that purifies with needs carries out heat exchange, improve the temperature of waste gas, make waste gas reach the temperature requirement of catalytic combustion, do not need to accomplish the idle operation of outside energy, operating cost reduces greatly, through the heat recovery and utilization that catalytic postcombustion produces, reaches energy-conservation purpose.
Waste gas treatment thermal cycle of the present invention system compares with traditional electrical heatable catalytic burner, can save 80% the electricity charge, compares with direct combustion heating, can save 50%.Carry out heat exchange for the second time through gas and air after catalytic purification, purified gas enters atmosphere subsequently, and heated air is delivered to baking oven as high-temperature gas, carries out heat integration.
In prior art, reduce tension force and be in order to reduce basement membrane deformation in process of production, existing equipment all adopts a system tension, there is no segmentation, and its tension force everywhere all is controlled at more than 100 kilograms.Yet this has just caused, and under the baking stage hot conditions, stretcher strain especially easily appears in basement membrane, and it can cause contraction again subsequently in packaging technology.
For the wide cut basement membrane, the large wide cut basement membrane of 2 meters of fabric widths particularly, the tension force in its manufacture process must strictly be controlled, otherwise the situations such as fold, monolateral degree of tightness and stretcher strain can occur.Need to carry out segment monitoring according to different workshop sections to tension force to the difference of tension force in the present invention, unreeling and applying stage workshop section because need to guarantee the smooth of basement membrane, tension force is controlled at 30～50 kilograms of tension force, at baking stage for avoiding basement membrane distortion to occur in condition of high temperature bottom, tension force is controlled at 5～10 kilograms of tension force, neat for guaranteeing the basement membrane volume winding in the rolling stage, tension force is controlled at 20～30 kilograms.
The present invention adopts the on-plane surface applicator roll to make the on-plane surface backboard, has one group of patterning projection on described on-plane surface backboard, thereby increases the area of dissipation of backboard.Consider the problems such as the intensity of backboard, follow-up transportation, installation, through test surperficial on-plane surface backboard projection and the Area Ratio of non-projection be 1: 1 o'clock, can be with above-mentioned factor controlling a safe range.
Below, will be described further by specific embodiment, yet embodiment being only giving an example of alternative embodiment of the present invention, its disclosed feature only is used for explanation and sets forth technical scheme of the present invention, the protection range that is not intended to limit the present invention.
Description of drawings
Fig. 1 is the structural representation of solar battery group backboard manufacturing installation of the present invention.
Fig. 2 a is one of the operation principle schematic diagram of the tension control roll of solar battery group backboard manufacturing installation of the present invention.
Fig. 2 b be solar battery group backboard manufacturing installation of the present invention tension control roll the operation principle schematic diagram two.
Fig. 3 a is the stereogram of the applicator roll of solar battery group backboard manufacturing installation of the present invention.
Fig. 3 b is the partial enlarged drawing of the applicator roll shown in Fig. 3 a.
Fig. 4 a is the stereogram of applicator roll of the solar battery group backboard manufacturing installation of another preferred embodiment according to the present invention.
Fig. 4 b is the partial enlarged drawing of the applicator roll shown in Fig. 4 a.
Fig. 5 a is the stereogram of applicator roll of the solar battery group backboard manufacturing installation of another preferred embodiment according to the present invention.
Fig. 5 b is the partial enlarged drawing of the applicator roll shown in Fig. 5 a.
Fig. 6 for the coating of adopting manufacturing installation manufacturing of the present invention after the comparison diagram of PET film after PET film and traditional coating.
Fig. 7 is the structural representation of the waste gas treatment thermal cycle system of solar battery group backboard manufacturing installation of the present invention.
Embodiment
According to claim of the present invention and the disclosed content of specification, technical scheme of the present invention literary composition specific as follows is described.
According to claim of the present invention and the disclosed content of specification, technical scheme of the present invention literary composition specific as follows is described.
as shown in Figure 1, solar battery group backboard manufacturing installation of the present invention comprises a unwinding device 1 that is connected successively, a pretreatment unit 2, a coating unit 3, a multi-stage drying device 4, a cooling system 5 and a wrap-up 6, described basement membrane transmits successively through said apparatus, described solar battery group backboard manufacturing installation further comprises a waste gas treatment thermal cycle system 7 and a tension force supervisory control system 8, described waste gas treatment thermal cycle system 7 connects described multi-stage drying devices 4, described multi-stage drying device 4 is mutually connected by one group of baking oven and is formed.
Described tension force supervisory control system 8 comprises first a tension force supervising device 81, second a tension force supervising device 82, one group of the 3rd tension force supervising device 83, the 4th a tension force supervising device 84, and a master controller 80 that is connected with above-mentioned each supervising device.
Described the first tension force supervising device 81 is arranged on described unwinding device 1 inside, is used for monitoring described unwinding device 1 place's basement membrane tension force.Described the first tension force supervising device 81 comprises first tension detector 811 and first tension control roll 812.
Described the second tension force supervising device 82 is arranged on described pretreatment unit 2 inside, is used for monitoring described pretreatment unit 2 place's basement membrane tension force.Described the second tension force supervising device 82 comprises second tension detector 821 and second tension control roll 822.
Described each the 3rd tension force supervising device 83 is separately positioned in each baking oven of described multi-stage drying device 4 41, is respectively used to monitor described each baking oven 41 place's basement membrane tension force.Described the 3rd tension force supervising device 83 comprises the 3rd tension detector 831 and the 3rd tension control roll 832.
Described the 4th tension force supervising device 84 is arranged on described wrap-up 6 inside, is used for monitoring described wrap-up 6 place's basement membrane tension force.Described the 4th tension force supervising device 84 comprises the 4th tension detector 841 and the 4th tension control roll 842.
The tension data everywhere that described the first tension detector 811, the second tension detector 821, the 3rd tension detector 831 and the 4th tension detector 841 record to described master controller 80 transmission respectively.Described master controller 80 internal preset have the tension range data in the stage of unreeling, pretreatment stage, baking stage and rolling stage.Described master controller 80 is compared the tension data of receiving with the default tension range in this stage, when the tension data that records during during lower than the lower limit of default tension range or higher than the higher limit of default tension range, the position of corresponding tension control roll is controlled and adjusted to described master controller 80, thereby increase or reduce the tension force of the basement membrane in this stage.
Preferably, described the first tension detector 811, the second tension detector 821, the 3rd tension detector 831 and the 4th tension detector 841 are tension pick-up, pressure sensor, pressure detector etc.
Make the basement membrane that described solar battery group backboard adopts, as the PET film, transmission is through described unwinding device 1, described pretreatment unit 2, described coating unit 3, described multi-stage drying device 4, described cooling system 5 and described wrap-up 6 successively, thereby successively respectively through unreel, the removal of impurity and static, coating, oven dry, cooling and wrapup routine, form described solar battery group backboard.
As shown in Figure 1, described unwinding device 1 comprises one and unreels support 11 and be arranged on a described unreeling shaft 12 that unreels on support 11.One volume basement membrane as the PET film, is placed on described unreeling on support 11, and described unreeling shaft 12 passes this volume PET film and unreels with the rotation of controlling this volume PET film, and described unreeling shaft is single shaft gas locked stationary air-expanding shaft.Described PET film transmits successively through described support 11, described the first tension detector 811 and described the first tension control roll 812 of unreeling.
Described the first described PET films of tension control roll 812 traction make described PET film unreel from described that support 11 unreels and transfer to described pretreatment unit 2 under the draw of described the first tension control roll 812.Described the first tension detector 811 is arranged on described unreeling between support 11 and described the first tension control roll 812, described the first tension detector 811 detects the tension force of the PET film of transmission on it, and give described master controller 80 with the basement membrane tension feedback that records, as the PET film tension force that records departs from preset value, described master controller 80 is adjusted the position of described the first tension control roll 812, thereby adjusts the tension force of described PET film.
As shown in Fig. 2 a, the tension force of the PET film that records when described the first tension detector 811 is during higher than preset value, and namely overtension, PET film are tight excessively, adjust the position of the first tension control roll 812 this moment, make it depart from the PET film, reduce the tight degree of PET film, to reduce tension force.As shown in Fig. 2 b, the tension force of the PET film that records when described the first tension detector 811 is during lower than preset value, and namely tension force is too small, the PET film is excessively lax, adjust the position of the first tension control roll 812 this moment, make its convergence PET film, increase the tight degree of PET film, to increase tension force.
As shown in Figure 1, described pretreatment unit 2 comprises a dust cleaning apparatus 21 and a Destaticizing device 22.Described dust cleaning apparatus 21 and described Destaticizing device 22 are respectively used to remove impurity and the epilamellar static of described PET such as greasy dirt on described PET film, dust.Described PET film transmits successively through described dust cleaning apparatus 21, described Destaticizing device 22, described the second tension control roll 822 and described the second tension detector 821.
Described the second tension control roll 822 traction transfers to the PET film of described pretreatment unit 2, makes described PET film transmit successively through described dust cleaning apparatus 21 and described Destaticizing device 22, to remove successively impurity and the static such as greasy dirt on it, dust.Pretreated PET film transfers to described coating unit 3 under the draw of described the second tension control roll 822.Before transmission enters described coating unit 3, described the second tension detector 821 detects the tension force of the PET film of transmission on it, and give described master controller 80 with the basement membrane tension feedback that records, as the PET film tension force that records departs from preset value, described master controller 80 is adjusted the position of described the second tension control roll 822, thereby adjusts the tension force of described PET film.
Detection and the adjustment of 82 pairs of described PET film tension force of described the second tension force supervising device are identical with described the first tension force supervising device 81.
As shown in Figure 1, described coating unit 3 comprises an applicator roll 32, and a carrying roller 31, a metering roll 33 and pressure roller 34 tangent with described applicator roll 32 respectively.Described carrying roller 31 screws out adhesive tape and go out described coating from the coating material cartridge that is coated with coated with PET film, and rotation is given described applicator roll 32 through the described applicator roll 32 tangent with it with the paint transfer on it along its axial-rotation.According to default coating thickness, adjust tangent applicator roll 32 and the spacing between described metering roll 33, to control the coating thickness of PET film.32 rotations of described applicator roll are through described metering rolls 31, controlling the paint thickness on described applicator roll 32, and continue rotation through the described pressure roller 34 tangent with it.
The PET film that transfers to described coating unit 3 passes described applicator roll 32 and described pressure roller 34 along the tangential direction between described applicator roll 32 and described pressure roller 34,34 pairs of described applicator roll 32 and described pressure rollers turn and make described PET film along transmission direction to described multistage heat cycle drying system 4 places transmission, described pressure roller 34 preset pressure of exerting pressure to described applicator roll 32 places, make and both push described PET film also and then make the coating on described applicator roll 32 be coated on described PET film, form coating.
Described applicator roll 32 is flat coating roller or on-plane surface applicator roll, and namely the outer surface of described applicator roll 32 is planar structure or nonplanar structure.
When described applicator roll 32 is the on-plane surface applicator roll, its outer surface is provided with a baseplane 321 and establishes one group of patterning projection 322 (patterned protrusion), as shown in Fig. 3 a-3b, Fig. 4 a-4b and Fig. 5 a-5b, described patterning projection 322 is the projection of striated projection, rhombus projection, block-like protrusions or other preset shapes.
Preferably, on the outer surface of described applicator roll 32, the Area Ratio between described baseplane 321 and described patterning projection 322 is 1: 1.
As shown in Fig. 3 a, shown in along its axial distribution, one group of strip projected parts 322 is arranged on the outer surface of applicator roll 32, thereby the outer surface of described applicator roll 32 is further divided into a baseplane 321, and the described strip projected parts 322 that distributes thereon.As shown in Fig. 3 b, the height of projection of described each strip projected parts 322 evenly and equidistantly parallel being distributed on described baseplane 321.
As shown in Fig. 4 a, shown in be distributed with one group of staggered striped projection 322 on the outer surface of applicator roll 32, above-mentioned staggered striped has formed one group of argyle design, thereby the outer surface of described applicator roll 32 is further divided into a baseplane 321, and the described staggered striped projection 322 that distributes thereon.As shown in Fig. 4 b, the even and unidirectional striped of the height of projection of described each staggered striped projection 322 is parallel being distributed on described baseplane 321 equidistantly.
As shown in Fig. 5 a, shown in be distributed with a chunk shape projection 322 on the outer surface of applicator roll 32, thereby the outer surface of described applicator roll 32 is further divided into a baseplane 321, and the described block-shaped protrusion 322 that distributes thereon.As shown in Fig. 5 b, the height of projection of described each block-shaped protrusion 322 evenly and equidistantly is distributed on described baseplane 321.
Described PET film forms the coating with patterning projection on it after applicator roll 32 applies.As shown in Figure 6, the uniform coating of a layer thickness is only arranged on traditional PET film, its thickness is d, and the coating on PET film of the present invention is the coating with certain relief pattern, it comprises the first coating and the second coating, and described the first coating can be regarded a substrate as, and it has the first coating thickness d1, described the second coating is made one group of projection applying in described substrate, it has the second coating thickness d2.Wherein, described the second coating thickness d2 is determined by the baseplane 321 of described applicator roll 32 and the difference in height between patterning projection 322, described the first coating thickness d1 has the paint thickness that is attached in coating procedure on described applicator roll 32 to determine, preferably, d1=d2, this moment, the rising height of described patterning projection 322 equated with the coating layer thickness of described PET film after applicator roll 32 applies.Coating layer thickness in the present invention described in coating procedure refers to the first coating thickness d1.
Be coated with coating on PET film after described coating unit 3 is processed, the PET film transfers to described multistage heat cycle drying system 4 and carries out drying and processing subsequently.
As shown in Figure 1, described multi-stage drying device 4 comprises one group of baking oven of mutually connecting 41 and one group of pipeline 43 that is arranged on respectively on corresponding baking oven 41, the hot-air that the waste gas that described baking oven 41 produces by corresponding separately pipeline 43 output oven dry respectively and input have uniform temperature as the thermal source heated oven to reach the baking needed temperature.
PET film after described coating transmits successively and enters each baking oven 41, and is heated oven dry in each baking oven 41.
Described each pipeline 43 further comprises first arm 431 and second arm 432.Waste gas in respectively will be the separately corresponding described baking oven 41 of described the first arm 431 transfer to described waste gas treatment thermal cycle system 7, and described the second arm 432 will transfer to respectively in corresponding separately described baking oven 41 through the hot-air of described waste gas treatment thermal cycle system 7 heating.
Preferably, described multi-stage drying device further comprises one group of adjuster valve 42, and it is separately positioned on described the second arm 432 corresponding with it.It is used for regulating the flow of the hot-air that corresponding described the second arm 432 provides to described baking oven 41 described adjuster valve 42.Enter the flow of the hot-air of described each baking oven 41 by adjusting, control the temperature of described each baking oven 41, thereby at inner different bake out temperatures, the Multi-level drying system that formation has temperature gradient of forming of described each baking oven 41.
Preferably, the bake out temperature of described each baking oven 41 is different, forms certain temperature gradient, thereby forms a Multi-level drying system.PET film after described coating is dried in each baking oven 41, and above-mentioned drying course is attended by the volatilization of the contained chemical substance of coating more, thereby produces the waste gas of drying course.This waste gas contains a large amount of chemical substances more, volatile inflammable organic gas particularly, and mostly have toxicity.In conventional art, above-mentioned waste gas generally directly is discharged in atmosphere and is gone, and perhaps is taken as tail gas and collects absorption.
In the present invention, preferably adopt 7 pairs of above-mentioned waste gas of described waste gas treatment thermal cycle device collect, burn and process, and the combustion heat that utilizes waste gas by heat exchange to described each baking oven 41 heat supplies, temperature required to guarantee each baking oven 41, and remove poisonous and hazardous organic gas in waste gas by flameless combustion, organic exhaust gas more than 99% is decomposed into harmless nitrogen oxide and water, thereby guarantees that the tail gas of discharging through described waste gas treatment thermal cycle device 7 is nontoxic.
As shown in Figure 7, described waste gas treatment thermal cycle device 7 comprises a First Heat Exchanger 71, a catalytic bed 73, a combustion chamber 74 and second heat exchanger 75.
Described First Heat Exchanger 71 and described the second heat exchanger 75 are cold fluid one hot fluid heat exchanger.Described First Heat Exchanger 71 has the first cold fluid entrance 711, first cold fluid outlet the 712, first hot fluid entrance 713 and the first hot fluid outlet 714.Described the second heat exchanger 75 has the second cold fluid entrance 751, second cold fluid outlet the 752, second hot fluid entrance 753 and the second hot fluid outlet 754.
described the first cold fluid entrance 711 connects described the first arm 431, described the first cold fluid outlet 712 connects an end of described combustion chamber 74 by described catalytic bed 73, described the first hot fluid entrance 713 connects the other end of described combustion chamber 74, described the first hot fluid outlet 714 connects the second hot fluid entrance 753 of described the second heat exchanger 75, gas after described the second hot fluid outlet 754 output burning in the atmosphere is processed or the gas after the output burning is processed in the exhaust gas processing device, described the second cold fluid entrance 751 input air or go out air after input purifies from air cleaning unit from atmosphere, described the second cold fluid outlet 752 connects described each second arm 432.
Wherein, described catalytic bed 74 contains catalyst, has the metal of catalytic action as palladium, platinum etc.
The waste gas of discharging from described each baking oven 41 collects through corresponding described each second arm 431, transfers to described waste gas treatment thermal cycle device 7.Above-mentioned waste gas enters described First Heat Exchanger 71 from 711 transmission of described cold fluid entrance to carry out the concrete heat exchange of heat exchange and describes in detail hereinafter, and discharges and pass subsequently described catalytic bed 73 from described the first cold fluid outlet 712 and enter described combustion chamber 74.Described waste gas burns under the catalytic action of catalytic bed 73 in combustion chamber 74, and its contained organic gas burning conversion is harmless nitrogen oxide and water.Waste gas after burning is processed enters described First Heat Exchanger 71 from the first hot fluid entrance 713 transmission and carries out heat exchange, subsequently from described the second hot fluid outlet 714.From the above, unburned EGT is lower, and the EGT after burning is higher, both carries out heat exchange in described First Heat Exchanger 71, thereby makes described unburned EGT raise, to reach the required temperature of catalytic combustion.Waste gas after burning enters described the second heat exchanger 75 from described the second hot fluid entrance 753 transmission after heat exchange, and carries out heat exchange with the air of inputting from described the second cold fluid entrance 751, discharges from the second hot fluid outlet 754 subsequently.EGT reduces after the burning of heat exchange, and the air themperature after heat exchange raises, it is discharged from described cold fluid outlet 752, form hot-air, this hot-air enters described each second arm 432 that is connected with described cold fluid outlet 752 subsequently, and transfer to respectively corresponding described each baking oven 41, thereby be used for heating described baking oven 41 so that the temperature of baking needed to be provided.
Because described waste gas may exist its temperature not rise to the temperature required scope of catalytic combustion after described the first heat exchanger 71 places carry out heat exchange.In this case, waste gas may occur can't clean-burning situation in combustion chamber 74.
For fear of above-mentioned situation, preferably, further be provided with a heating chamber 72 between described the first cold fluid outlet 712 and described catalytic bed 73.Described heating chamber 72 is used for the gas of its inside is carried out preheating.Described heating chamber 72 inside are provided with a temperature sensor 721 and a heater 722, described temperature sensor 721 is used for measuring in real time the gas temperature of described heating chamber 72 inside, during lower than the lower limit of preset temperature range, described heater 722 is opened gas-heated when gas temperature; During higher than the higher limit of preset temperature range, described heater 722 stops gas-heated when gas temperature; So just guaranteed that described waste gas has sufficiently high temperature when entering described combustion chamber 74.
Preferably, described multistage heat cycle drying system 4 has at least 3 baking ovens 41.
In a preferred embodiment, when adopting the multistage heat cycle drying system 4 with 3 baking ovens 41 to carry out multistage oven dry, the bake out temperature of first order baking oven 411 is that 75 ℃～85 ℃, drying time are 1～3 minute; The bake out temperature of second level baking oven 412 is that 95 ℃～105 ℃, drying time are 2～4 minutes; The bake out temperature of third level baking oven 413 is that 115 ℃～125 ℃, drying time are 2～4 minutes.
Preferably, the bake out temperature of described first order baking oven 41 is that 80 ℃, baking time are 2 minutes.
Preferably, the bake out temperature of described second level baking oven 41 is that 100 ℃, drying time are 3 minutes.
Preferably, the bake out temperature of described third level baking oven 41 is that 120 ℃, drying time are 3 minutes.
be provided with described the 3rd a tension force supervising device 83 in described each baking oven 41, described PET film in described each baking oven 41 successively transmission through described the 3rd tension detector 831 and three tension control rolls 832 such as described, described the 3rd tension control roll 832 described PET films of traction transmit successively and pass described drying unit 41, described the 3rd tension detector 831 detects the tension force of the PET film of transmission on it, and give described master controller 80 with the basement membrane tension feedback that records, as the PET film tension force that records departs from preset value, described master controller 80 is adjusted the position of described the 3rd tension control roll 832, thereby adjust the tension force of described PET film.
Detection and the adjustment of 83 pairs of described PET film tension force of described the 3rd tension force supervising device are identical with described the first tension force supervising device 81.
Preferably, regulate described adjuster valve 42, thereby adjust the hot air flowrate of corresponding the second arm 432, thereby adjust the internal temperature of corresponding baking oven 41, make the bake out temperature of described baking oven 41 different, form multistage oven dry.When described PET film transmits through described baking oven 41 successively, in different baking oven 41, carry out multistage oven dry through different bake out temperatures.
This multistage oven dry can provide the bake out temperature of different gradients, makes the gentle rising of temperature of PET film, thereby has avoided that the shock heating coated and dried of bringing is uneven, the problem such as break.
Described PET film is through the oven dry of described multi-stage drying device 4, and transmission enters described cooling system 5.
Described cooling system 5 comprises one group of air knife 51 and one group of chill roll 52 successively along the transmission direction of PET film.Described air knife 51 is positioned at the top that described PET film applies cated that side, its with normal temperature air supercharging after-blow to described PET film, with cooling described PET film.Preferably, described cooling system 5 comprises 4～8 groups of air knives 51.The inside of described chill roll 52 is filled with the liquid of cooling use, be generally water, described each chill roll 52 is tangent successively, and described PET film is successively through traction and the extruding of described each chill roll 52, in above-mentioned contact transmitting procedure, described PET film is cooled, and preferably, described cooling system 5 comprises at least 3 chill rolls 52.
Preferably, regulate the temperature of described chill roll 52 internal coolant, thereby adjust the temperature of corresponding chill roll 52, thereby form multistage cooling.When described PET film transmits through described chill roll 52 successively, at different chill rolls 52 places, carry out multistage cooling through different chilling temperatures.
In a preferred embodiment, the cooling system 5 that employing has 3 chill rolls carries out when cooling, the chilling temperature of described air knife 51 is 80 ℃, the chilling temperature of first order chill roll 521 is 60 ℃～70 ℃, the chilling temperature of second level chill roll 522 is 35 ℃～45 ℃, and the chilling temperature of third level chill roll 523 is 20 ℃～30 ℃.
Preferably, the chilling temperature of described first order chill roll 521 is 65 ℃.
Preferably, the chilling temperature of described second level chill roll 522 is 40 ℃.
Preferably, the chilling temperature of described third level chill roll 523 is 25 ℃.
This multistage cooling chilling temperature that different gradients can be provided makes the gentle decline of temperature of PET film, thus the problems such as the coating of having avoided quenching to bring is tight, generation wrinkle
Transfer to described wrap-up 6 through cooling PET film.Described wrap-up 6 is preferably a double translation frame formula wrap-up 61.Described PET film transmits successively through described the 4th tension detector 841 and described the 4th tension control roll 842, transfers to subsequently described double translation frame formula wrap-up 61 and carry out the rolling cutting under the traction of described the 4th tension control roll 842.Wherein, described the 4th tension detector 841 detects the tension force of the PET film of transmission on it, and give described master controller 80 with the basement membrane tension feedback that records, as the PET film tension force that records departs from preset value, described master controller 80 is adjusted the position of described the 4th tension control roll 842, thereby adjusts the tension force of described PET film.
Detection and the adjustment of 84 pairs of described PET film tension force of described the 4th tension force supervising device are identical with described the first tension force supervising device 81.
So far, that described PET film passes through successively is anti-roll, preliminary treatment, coating, oven dry, cooling and rolling, is processed to required solar battery group backboard.
Wherein, the default tension range of described the first tension detector 811 is 30～50 kilograms, when described PET film departs from above-mentioned default tension range in described unwinding device 1, described the first tension control roll 812 is adjusted the position of described PET film, thereby the tension force of PET film is controlled at 30～50 kilograms.
Wherein, the default tension range of described the second tension detector 821 is 30～50 kilograms, when described PET film departs from above-mentioned default tension range in described pretreatment unit 2, described the second tension control roll 822 is adjusted the position of described PET film, thereby the tension force of PET film is controlled at 30～50 kilograms.
Wherein, the default tension range of described each the 3rd tension detector 831 is 5～10 kilograms, when described PET film departs from above-mentioned default tension range in described each corresponding baking oven 41, described the 3rd tension control roll 832 is adjusted the position of described PET film, thereby the tension force of PET film is controlled at 5～10 kilograms.
Wherein, the default tension range of described each the 4th tension detector 841 is 20～30 kilograms, when described PET film departs from above-mentioned default tension range in described wrap-up 61, described the 4th tension control roll 842 is adjusted the position of described PET film, thereby the tension force of PET film is controlled at 20～30 kilograms.
Below in conjunction with solar battery group backboard manufacturing installation of the present invention, be described in further detail with basement membrane, as the PET film, make the method for solar battery group backboard, it comprises the following steps:
Step 1: provide basement membrane, as the PET film
Step 2: static and the impurity of removing described PET film surface;
Step 3: evenly apply fluorine material, coating layer thickness 0.04mm～0.06mm on described PET film;
Step 4: step 3 gained PET film is dried under 75 ℃～85 ℃, 95 ℃～105 ℃, 115 ℃～125 ℃ conditions successively, and drying time amounts to 8 minutes;
Step 5: adopt air-cooled step 4 gained PET film to be cooled to 75 ℃～85 ℃, adopt subsequently chill roll that the PET film further is cooled to room temperature;
Step 6: arrange step 5 gained PET film and rolling.
In wherein said step 3, adopt 32 pairs of PET films of on-plane surface applicator roll to apply.The outer surface of described applicator roll 32 is provided with a baseplane 321 and establishes one group of patterning projection 322 (patterned protrusion), as shown in Fig. 3 a-3b, Fig. 4 a-4b and Fig. 5 a-5b, described patterning projection 322 is the projection of striated projection, rhombus projection, block-like protrusions or other preset shapes.Preferably, on the outer surface of described applicator roll 32, the Area Ratio between described baseplane 321 and described patterning projection 322 is 1: 1.Preferably, the height of the patterning projection 322 of described applicator roll 32 is 0.04mm～0.06mm.Adopting the coating on the PET film after above-mentioned on-plane surface applicator roll 32 applies is the coating with certain relief pattern, it comprises the first coating and the second coating, described the first coating can be regarded a substrate as, its coating layer thickness is 0.04mm～0.06mm, described the second coating is made one group of projection applying in described substrate, its coating layer thickness is 0.04mm～0.06mm, and the maximum coating layer thickness of the coating on described PET film is that 0.08mm～0.12mm and minimum cover thickness are 0.04mm～0.06mm.
In described step 4, adopt described Multi-level drying system 4 to carry out multistage oven dry, first order bake out temperature is that 75 ℃～85 ℃, drying time are 1～3 minute; Second level bake out temperature is that 95 ℃～105 ℃, drying time are 2～4 minutes; Third level bake out temperature is that 115 ℃～125 ℃, drying time are 2～4 minutes.
Preferably, described first order bake out temperature is that 80 ℃, drying time are 2 minutes.
Preferably, described second level bake out temperature is that 100 ℃, drying time are 3 minutes.
Preferably, described third level bake out temperature is that 120 ℃, drying time are 3 minutes.
Preferably, step 4 is further comprising the steps:
Step 4.1: be 2 minutes with step 3 gained PET film drying time under 80 ℃ of conditions;
Step 4.2: be 3 minutes with step 4.1 gained PET film drying time under 100 ℃ of conditions;
Step 4.3: be 3 minutes with step 4.2 gained PET film drying time under 120 ℃ of conditions.
In described step 5, preferably adopt one group of air knife, be cooled to 80 ℃ with described PET film is air-cooled.
In described step 5, preferably adopt chill roll to carry out multistage cooling to described PET film, at first carry out the first order cooling, the PET film is cooled to 60 ℃～70 ℃, carry out subsequently the second level cooling, the PET film is cooled to 35 ℃～45 ℃, carries out at last the third level cooling, the PET film is cooled to 20 ℃～30 ℃.
Preferably, adopt the first order cooling, the PET film is cooled to 65 ℃.
Preferably, adopt the second level cooling, the PET film is cooled to 40 ℃.
Preferably, adopt the third level cooling, the PET film is cooled to 25 ℃.
Preferably, step 5 is further comprising the steps:
Step 5.1: adopt air-cooled step 4 gained PET film to be cooled to 80 ℃;
Step 5.2: adopt chill roll that step 5.1 gained PET film is cooled to 65 ℃;
Step 5.3: adopt chill roll that step 5.2 gained PET film is cooled to 40 ℃;
Step 5.4: adopt chill roll that step 5.3 gained PET film is cooled to 25 ℃;
In described step 6, adopt described wrap-up 6 to carry out the operations such as automatic winding, cutting.
In order to reduce the deformation in process of production of PET film, the present invention further comprises a tension force supervisory control system 8, and it has one group of tension force supervising device that is arranged on respectively wrap-up 1, pretreatment unit 2, multi-stage drying device 4 and wrap-up 6 places detected and controlled PET film everywhere with segmentation expansive force.In corresponding step 1, step 2, step 4 and step 6, also further comprise the tension force monitoring step.
Preferably, described step 1 is further comprising the steps:
Step 1.1: the PET film is unreeled;
Step 1.2: detect the tension force of described PET film, as the tension force that records departs from default tension range, adjust the tension force of described PET film;
Wherein said tension range is 30～50 kilograms;
Step 1.3: export described PET film.
Preferably, described step 2 is further comprising the steps:
Step 2.1: the impurity of removing described PET film surface;
Step 2.2: the static of removing described PET film surface;
Step 2.3: detect the tension force of described PET film, as the tension force that records departs from default tension range, adjust the tension force of described PET film;
Wherein said tension range is 30～50 kilograms;
Step 2.4: export described PET film.
Preferably, described step 4 is further comprising the steps:
Step 4.1.1: detect the tension force of the described PET film of gained, as the tension force that records departs from default tension range, adjust the tension force of described PET film;
Wherein said tension range is 5～10 kilograms;
Step 4.1.2: be 2 minutes with PET film drying time under 80 ℃ of conditions of gained;
Step 4.2.1: detect the tension force of the described PET film of gained, as the tension force that records departs from default tension range, adjust the tension force of described PET film;
Wherein said tension range is 5～10 kilograms;
Step 4.2.2: be 3 minutes with PET film drying time under 100 ℃ of conditions of gained;
Step 4.3.1: detect the tension force of the described PET film of gained, as the tension force that records departs from default tension range, adjust the tension force of described PET film;
Wherein said tension range is 5～10 kilograms;
Step 4.3.2: be 3 minutes with PET film drying time under 120 ℃ of conditions of gained.
Preferably, step 6 is further comprising the steps:
Step 6.1: detect the tension force of the described PET film of gained, as the tension force that records departs from default tension range, adjust the tension force of described PET film;
Wherein said tension range is 20～30 kilograms;
Step 6.2: arrange PET film and the rolling of gained.
Show after deliberation, multistage heat cycle drying system 4 of the present invention is introduced described waste gas treatment thermal cycle device 7 with the waste gas that contains organic gas that drying course produces, described waste gas carries out catalytic combustion in described combustion chamber 74 under the effect of described catalytic bed 73.Our experiments show that, described catalytic bed 73 preferably contains the catalysis of the noble metal catalysts such as palladium, platinum, it has, and resistance is little, activity is high, the characteristics of good stability, utilize this catalytic bed, the purifying rate of the interior toluene of described combustion chamber 74, dimethylbenzene reaches more than 99%, above-mentioned waste gas is decomposed into harmless nitrogen oxide, CO2 and H2O through catalytic combustion, reaches the environment protection emission requirement.In addition, owing to having adopted First Heat Exchanger 71 to carry out heat exchange, the waste gas that enters waste gas treatment thermal cycle device 7 has had enough temperature, as long as its exhaust gas concentration reaches 4.5g/M 3Just can accomplish circulating combustion voluntarily when above.
The required heat of air that enough provides waste gas intensification institute's calorific requirement and heating to enter baking oven 41 due to the combustion heat of above-mentioned waste gas, therefore described multistage heat-circulation oven can be accomplished idle operation and need not the external world to provide heat, thereby greatly reduce operating cost and realize the purpose of energy-saving and emission-reduction.
Show after deliberation, the present invention has adopted the sectional tension monitoring, and it can monitor the tension force of the PET film of each section effectively, thereby improves evenness and the rate of finished products of PET film.Just because of this, it is wide when larger that it can solve the PET film web, the problem such as the lower and quality of the rate of finished products that causes because of the evenness of uncontrollable PET film is not good, just because of above-mentioned reason, in prior art, there is the technical barrier that to make the wide cut backboard in solar battery group backboard manufacturing process always.Utilize manufacturing process of the present invention and manufacturing equipment, can effectively monitor the PET film tension force, control its evenness, improve its rate of finished products, thereby can be for the manufacture of the solar battery group backboard of maximum fabric width, its maximum fabric width can reach 2M.
The above embodiment of the present invention namely is semi-finished product only take the single face application type as example after PET simultaneously applies the fluorine material.As the FPF structure of need production dual coating, only need repeated using said apparatus and method, just can obtain the product of the FPF structure of dual coating.Produce the product of FPE structure as need, only need repeated using said apparatus and method, apply EVA at the another side that does not have to apply by the curtain coating mode, obtain the FPE product.
Adopt the main performance index of the product that apparatus and method of the present invention make as follows:
Project name Unit Index
Material forms FPF
Thickness mm 0.20 0.30 0.35
Color White black other
Maximum wide cut mm 2000
Hot strength (vertically/laterally) MPa ≥140
Fracture elongation (vertically/laterally) ％ 160/110
Shrinkage (vertically/laterally) ％ ≤1.0/0.5
Adhesion strength with EVA N/cm 40
[0246]
Steam penetrating capacity g/m 224h 2.0
The maximum system voltage that allows VDC ＞1000 ＞1200
Puncture voltage KV 17
Our experiments show that, utilize apparatus and method of the present invention can produce efficiently solar cell module back veneer, its unit year output can reach 6,000,000 m 2, and its product satisfies the requirement in useful life of 25 years of solar energy industry fully.
Foregoing is exemplifying of specific embodiments of the invention, for the wherein not equipment of detailed description and structure, should be understood to take the existing common apparatus in this area and universal method to be implemented.
The above embodiment of the present invention for the use of explanation technical solution of the present invention, is only only enumerating of technical solution of the present invention simultaneously, is not limited to technical scheme of the present invention and protection range thereof.Adopt equivalent technologies means, equivalent apparatus etc. to will be understood that it is not exceed these real invention claims and the disclosed scope of specification to the improvement of claims of the present invention and the disclosed technical scheme of specification.

Claims (31)

1. manufacturing installation that maximum fabric width is the solar battery group backboard of 2 meters, it is characterized in that, comprise the unwinding device (1), a pretreatment unit (2), a coating unit (3), a multi-stage drying device (4), a cooling system (5) and the wrap-up (6) that are connected successively, the basement membrane that described manufacturing solar battery group backboard adopts transmit successively through said apparatus through unreel, the removal of impurity and static, coating, oven dry, cooling and rolling process, and forms described solar battery group backboard; Described multi-stage drying device (4) is mutually connected by one group of baking oven (41) and is formed;
described solar battery group backboard manufacturing installation further comprises a tension force supervisory control system (8), it comprises first a tension force supervising device (81), a second tension force supervising device (82), one group of the 3rd tension force supervising device (83), the 4th a tension force supervising device (84), and master controller (80) that is connected with above-mentioned each supervising device, described each tension force supervising device is under the control of described master controller (80), detect respectively described unwinding device (1), described pretreatment unit (2), in each baking oven of described multi-stage drying device (4) (41), the tension force of the basement membrane of transmission and correspondingly increase or reduce to be positioned at the tension force of basement membrane in the stage of described device in described wrap-up (6).
2. maximum fabric width as claimed in claim 1 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described the first tension force supervising device (81) is arranged on described unwinding device (1) inside, and it comprises first tension detector (811) and first tension control roll (812);
Described the second tension force supervising device (82) is arranged on described pretreatment unit (2) inside, and it comprises second tension detector (821) and second tension control roll (822);
Described each the 3rd tension force supervising device (83) is separately positioned on each baking oven interior (41) of described multi-stage drying device (4), and it comprises the 3rd tension detector (831) and the 3rd tension control roll (832);
Described the 4th tension force supervising device (84) is arranged on described wrap-up (6) inside, and it comprises the 4th tension detector (841) and the 4th tension control roll (842);
described the first tension detector (811), the second tension detector (821), the tension data everywhere that the 3rd tension detector (831) and the 4th tension detector (841) record to described master controller (80) transmission respectively, described master controller (80) internal preset unreels the stage, pretreatment stage, the tension range data in baking stage and rolling stage, described master controller (80) is compared the tension data of receiving with the default tension range in this stage, when the tension data that records during during lower than the lower limit of default tension range or higher than the higher limit of default tension range, the position of corresponding tension control roll is controlled and adjusted to described master controller (80), thereby increase or reduce to be positioned at the tension force of basement membrane in the stage of described device.
3. maximum fabric width as claimed in claim 2 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described coating unit (3) comprises an applicator roll (32), an and carrying roller (31) tangent with described applicator roll (32) respectively, a metering roll (33) and a pressure roller (34), the basement membrane that transfers to described coating unit (3) passes described applicator roll (32) and described pressure roller (34) along the tangential direction between described applicator roll (32) and described pressure roller (34), form coating.
4. maximum fabric width as claimed in claim 3 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described applicator roll (32) is the on-plane surface applicator roll, and its outer surface is provided with a baseplane (321) and establishes one group of patterning projection (322);
On the outer surface of described applicator roll (32), the Area Ratio between described baseplane (321) and described patterning projection (322) is 1: 1.
5. maximum fabric width as claimed in claim 4 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, the rising height of described patterning projection (322) equates with the coating layer thickness of described basement membrane after applicator roll (32) applies.
6. maximum fabric width as claimed in claim 5 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described patterning projection (322) is striated projection, rhombus projection or block-like protrusions.
7. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 1,2 or 5 described maximum fabric widths, it is characterized in that, further comprise a waste gas treatment thermal cycle system (7), it connects described multi-stage drying device (4);
Described multi-stage drying device (4) comprises one group of baking oven of mutually connecting (41) and one group of pipeline (43) that is arranged on respectively on corresponding baking oven (41);
Described each pipeline (43) further comprises first arm (431) and second arm (432), described the first arm (431) transfers to described waste gas treatment thermal cycle system (7) with the waste gas in corresponding separately described baking oven (41) respectively, and described the second arm (432) will transfer to respectively separately in corresponding described baking oven (41) through the hot-air of described waste gas treatment thermal cycle system (7) heating.
8. maximum fabric width as claimed in claim 7 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described waste gas treatment thermal cycle device (7) comprises a First Heat Exchanger (71), a catalytic bed (73), a combustion chamber (74) and second heat exchanger (75);
Described First Heat Exchanger (71) has the first cold fluid entrance (711), the first cold fluid outlet (712), the first hot fluid entrance (713) and the first hot fluid outlet (714);
Described the second heat exchanger (75) has the second cold fluid entrance (751), the second cold fluid outlet (752), the second hot fluid entrance (753) and the second hot fluid outlet (754);
described the first cold fluid entrance (711) connects described the first arm (431), described the first cold fluid outlet (712) connects an end of described combustion chamber (74) by described catalytic bed (73), described the first hot fluid entrance (713) connects the other end of described combustion chamber (74), described the first hot fluid outlet (714) connects the second hot fluid entrance (753) of described the second heat exchanger (75), gas after described the second hot fluid outlet (754) output burning is processed, described the second cold fluid entrance (751) input air, described the second cold fluid outlet (752) connects described each second arm (432).
9. maximum fabric width as claimed in claim 8 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, the waste gas of discharging from described each baking oven (41) collects through corresponding described each second arm (431), transfer to described waste gas treatment thermal cycle device (7), and enter described First Heat Exchanger (71) from described the first cold fluid entrance (711) transmission and carry out heat exchange, and discharge and pass subsequently described catalytic bed (73) from described the first cold fluid outlet (712) and enter described combustion chamber (74);
Described waste gas is in combustion chamber (74), burn under the catalytic action of catalytic bed (73), waste gas after burning is processed enters described First Heat Exchanger (71) from the first hot fluid entrance (713) transmission and carries out heat exchange, subsequently from described the second hot fluid outlet (714);
Waste gas after burning enters described the second heat exchanger (75) from described the second hot fluid entrance (753) transmission after heat exchange, and carry out heat exchange with the air of inputting from described the second cold fluid entrance (751), discharge from the second hot fluid outlet (754) subsequently;
Air themperature after heat exchange raises, it is discharged from described the second cold fluid outlet (752), form hot-air, enter subsequently described each second arm (432) that is connected with described the second cold fluid outlet (752), and transfer to respectively corresponding described each baking oven (41), thereby be used for heating described baking oven (41) so that the temperature of baking needed to be provided.
10. maximum fabric width as claimed in claim 9 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, further be provided with a heating chamber (72) between described the first cold fluid outlet (712) and described catalytic bed (73), be used for the gas of its inside is carried out preheating;
Described heating chamber (72) inside is provided with a temperature sensor (721) and a heater (722), described temperature sensor (721) is used for measuring in real time the inner gas temperature of described heating chamber (72), during lower than the lower limit of preset temperature range, described heater (722) is opened gas-heated when gas temperature; During higher than the higher limit of preset temperature range, described heater (722) stops gas-heated when gas temperature; So just guaranteed that described waste gas has sufficiently high temperature when entering described combustion chamber (74).
11. maximum fabric width as claimed in claim 10 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described catalytic bed (74) contains palladium or platinum as catalyst.
12. maximum fabric width as claimed in claim 11 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described multi-stage drying device further comprises one group of adjuster valve (42), it is separately positioned on described the second arm (432) corresponding with it, and be used for to regulate the flow of the hot-air that corresponding described the second arm (432) provides to described baking oven (41), control the temperature of described each baking oven (41), thereby at the different bake out temperature of the inner formation of described each baking oven (41).
13. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 2,5 or 12 described maximum fabric widths, it is characterized in that, be provided with described the 3rd a tension force supervising device (83) in described each baking oven (41);
Described basement membrane is described the 3rd tension detector (831) of transmission process successively and described the 3rd tension control roll (832) in described each baking oven (41), described the 3rd tension detector (831) detects the tension force of the basement membrane of transmission on it, and give described master controller (80) with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from preset value, described master controller (80) is adjusted the position of described the 3rd tension control roll (832), thereby adjusts the tension force of described basement membrane.
14. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 1,2,5 or 12 described maximum fabric widths, it is characterized in that, described cooling system (5) comprises one group of air knife (51) and one group of chill roll (52) successively;
Described air knife (51) is positioned at the top that described basement membrane applies cated that side, its with normal temperature air supercharging after-blow to described basement membrane;
The inside of described chill roll (52) is filled with the liquid of cooling use, and described each chill roll (52) is tangent successively, and described basement membrane is successively through traction and the extruding of described each chill roll (52), and in the contact transmitting procedure, described basement membrane is cooled.
15. maximum fabric width as claimed in claim 14 is the manufacturing installation of the solar battery group backboard of 2 meters, it is characterized in that, described cooling system (5) comprises at least 3 chill rolls (52) and 4～8 groups of air knives (51);
Regulate the temperature of described chill roll (52) internal coolant, thereby adjust the temperature of corresponding chill roll (52), form multistage cooling.
16. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 2,5 or 12 described maximum fabric widths, it is characterized in that, described unwinding device (1) comprises one and unreels support (11) and be arranged on a described unreeling shaft (12) that unreels on support (11);
Described basement membrane transmits successively through described support (11), described the first tension detector (811) and described the first tension control roll (812) of unreeling, and described the first tension detector (811) is arranged on described unreeling between support (11) and described the first tension control roll (812);
Described the first tension detector (811) detects the tension force of the basement membrane of transmission on it, and give described master controller (80) with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from preset value, described master controller (80) is adjusted the position of described the first tension control roll (812), thereby adjusts the tension force of described basement membrane.
17. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 2,5 or 12 described maximum fabric widths, it is characterized in that, described pretreatment unit (2) comprises a dust cleaning apparatus (21) and a Destaticizing device (22);
Described basement membrane transmits successively through described dust cleaning apparatus (21), described Destaticizing device (22), described the second tension control roll (822) and described the second tension detector (821);
Described the second tension detector (821) detects the tension force of the basement membrane of transmission on it, and give described master controller (80) with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from preset value, described master controller (80) is adjusted the position of described the second tension control roll (822), thereby adjusts the tension force of described basement membrane.
18. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 2,5 or 12 described maximum fabric widths, it is characterized in that, described wrap-up (6) is a double translation frame formula wrap-up (61); Described basement membrane transmits successively through described the 4th tension detector (841) and described the 4th tension control roll (842), transfers to subsequently described double translation frame formula wrap-up (61) and carries out the rolling cutting;
Described the 4th tension detector (841) detects the tension force of the basement membrane of transmission on it, and give described master controller (80) with the basement membrane tension feedback that records, as the basement membrane tension force that records departs from preset value, described master controller (80) is adjusted the position of described the 4th tension control roll (842), thereby adjusts the tension force of described basement membrane.
19. be the manufacturing installation of the solar battery group backboard of 2 meters as claim 2,5 or 12 described maximum fabric widths, it is characterized in that, described the first tension detector (811), the second tension detector (821), the 3rd tension detector (831) and the 4th tension detector (841) are tension pick-up, pressure sensor or pressure detector.
20. one kind is adopted the maximum fabric width of manufacturing installation manufacturing claimed in claim 1 is the method for the solar battery group backboard of 2 meters, it is characterized in that, comprises the following steps:
Step 1: basement membrane is provided, detects the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Step 2: remove static and the impurity of described membrane surface, detect the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Step 3: evenly apply fluorine material, coating layer thickness 0.04mm～0.06mm on described basement membrane;
Step 4: step 3 gained basement membrane is dried under 75 ℃～85 ℃, 95 ℃～105 ℃, 115 ℃～125 ℃ conditions successively, and drying time amounts to 8 minutes;
Under each bake out temperature condition, detect successively the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Step 5: adopt air-cooled step 4 gained basement membrane to be cooled to 75 ℃～85 ℃, adopt subsequently chill roll that basement membrane further is cooled to room temperature;
Step 6: the tension force of detecting step 5 described basement membranes, as the tension force that records departs from default tension range, adjusts the tension force of described basement membrane; Arrange subsequently gained basement membrane and rolling.
21. the maximum fabric width of manufacturing as claimed in claim 20 is the method for the solar battery group backboard of 2 meters, it is characterized in that, in wherein said step 3, adopts on-plane surface applicator roll (32) that basement membrane is applied; The outer surface of described applicator roll (32) is provided with a baseplane (321) and establishes one group of patterning projection (322);
On the outer surface of described applicator roll (32), the Area Ratio between described baseplane (321) and described patterning projection (322) is 1: 1;
The height of the patterning projection (322) of described applicator roll (32) is 0.04mm～0.06mm.
22. the maximum fabric width of manufacturing as claimed in claim 21 is the method for the solar battery group backboard of 2 meters, it is characterized in that, described patterning projection (322) is striated projection, rhombus projection or block-like protrusions.
23. the maximum fabric width of manufacturing as claimed in claim 21 is the method for the solar battery group backboard of 2 meters, it is characterized in that, in described step 4, described basement membrane successively dry under 75 ℃～85 ℃ conditions 1～3 minute, dry under 95 ℃～105 ℃ conditions 2～4 minutes, dried 2～4 minutes under 115 ℃～125 ℃ conditions.
24. the maximum fabric width of manufacturing as claimed in claim 23 is the method for the solar battery group backboard of 2 meters, it is characterized in that, described step 4 is further comprising the steps:
Step 4.1.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane, wherein said tension range is 5～10 kilograms;
Step 4.1.2: be 2 minutes with basement membrane drying time under 80 ℃ of conditions of gained;
Step 4.2.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane, wherein said tension range is 5～10 kilograms;
Step 4.2.2: be 3 minutes with basement membrane drying time under 100 ℃ of conditions of gained;
Step 4.3.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane, wherein said tension range is 5～10 kilograms;
Step 4.3.2: be 3 minutes with basement membrane drying time under 120 ℃ of conditions of gained.
25. be the method for the solar battery group backboard of 2 meters as claim 21, the 23 or 24 maximum fabric widths of described manufacturing, it is characterized in that, in described step 5, adopt one group of air knife, be cooled to 80 ℃ with described basement membrane is air-cooled.
26. be the method for the solar battery group backboard of 2 meters as claim 21, the 23 or 24 maximum fabric widths of described manufacturing, it is characterized in that, in described step 5, adopt chill roll that described basement membrane is carried out multistage cooling, described basement membrane is cooled to 60 ℃～70 ℃, 35 ℃～45 ℃, 20 ℃～30 ℃ successively.
27. the maximum fabric width of manufacturing as claimed in claim 26 is the method for the solar battery group backboard of 2 meters, it is characterized in that, in described step 5, adopts chill roll that described basement membrane is carried out multistage cooling, described basement membrane is cooled to 65 ℃, 40 ℃, 25 ℃ successively.
28. be the method for the solar battery group backboard of 2 meters as claim 21, the 23 or 24 maximum fabric widths of described manufacturing, it is characterized in that, described step 5 is further comprising the steps:
Step 5.1: adopt air-cooled step 4 gained basement membrane to be cooled to 80 ℃;
Step 5.2: adopt chill roll that step 5.1 gained basement membrane is cooled to 65 ℃;
Step 5.3: adopt chill roll that step 5.2 gained basement membrane is cooled to 40 ℃;
Step 5.4: adopt chill roll that step 5.3 gained basement membrane is cooled to 25 ℃.
29. be the method for the solar battery group backboard of 2 meters as claim 21, the 23 or 24 maximum fabric widths of described manufacturing, it is characterized in that, described step 1 is further comprising the steps:
Step 1.1: basement membrane is unreeled;
Step 1.2: detect the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 30～50 kilograms;
Step 1.3: export described basement membrane.
30. be the method for the solar battery group backboard of 2 meters as claim 21, the 23 or 24 maximum fabric widths of described manufacturing, it is characterized in that, described step 2 is further comprising the steps:
Step 2.1: the impurity of removing described membrane surface;
Step 2.2: the static of removing described membrane surface;
Step 2.3: detect the tension force of described basement membrane, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane;
Wherein said tension range is 30～50 kilograms;
Step 2.4: export described basement membrane.
31. be the method for the solar battery group backboard of 2 meters as claim 21, the 23 or 24 maximum fabric widths of described manufacturing, it is characterized in that, described step 6 is further comprising the steps:
Step 6.1: detect the tension force of the described basement membrane of gained, as the tension force that records departs from default tension range, adjust the tension force of described basement membrane,
Wherein said tension range is 20～30 kilograms;
Step 6.2: arrange basement membrane and the rolling of gained.
CN2010105154385A 2010-10-09 2010-10-09 Method and device for manufacturing wide solar module rear panel Expired - Fee Related CN102163644B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821860A (en) * 2007-10-11 2010-09-01 富士电机系统株式会社 Production system of thin film solar battery
CN201845801U (en) * 2010-10-09 2011-05-25 浙江哈氟龙新能源有限公司 Manufacturing device for wide-width solar battery pack back panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821860A (en) * 2007-10-11 2010-09-01 富士电机系统株式会社 Production system of thin film solar battery
CN201845801U (en) * 2010-10-09 2011-05-25 浙江哈氟龙新能源有限公司 Manufacturing device for wide-width solar battery pack back panel

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