WO2017215114A1 - 一种用于现场管道增强的复合材料制备装置及制备方法 - Google Patents

一种用于现场管道增强的复合材料制备装置及制备方法 Download PDF

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Publication number
WO2017215114A1
WO2017215114A1 PCT/CN2016/095920 CN2016095920W WO2017215114A1 WO 2017215114 A1 WO2017215114 A1 WO 2017215114A1 CN 2016095920 W CN2016095920 W CN 2016095920W WO 2017215114 A1 WO2017215114 A1 WO 2017215114A1
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WIPO (PCT)
Prior art keywords
reinforcing fiber
joint
glue
vacuum
fiber cloth
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PCT/CN2016/095920
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English (en)
French (fr)
Inventor
张勇
张豫
陆剑锋
雷健
彭强
Original Assignee
四川德源石油天然气工程有限公司
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Application filed by 四川德源石油天然气工程有限公司 filed Critical 四川德源石油天然气工程有限公司
Priority to US16/097,320 priority Critical patent/US11179867B2/en
Publication of WO2017215114A1 publication Critical patent/WO2017215114A1/zh
Priority to US17/489,416 priority patent/US11613048B2/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
    • B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F16L55/1683—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0017—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material
    • B29C63/0021—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material with coherent impregnated reinforcing layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0073—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor of non-flat surfaces, e.g. curved, profiled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/06—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0872—Prepregs
    • B29K2105/089—Prepregs fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F16L55/1686—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by winding a tape

Definitions

  • the invention relates to the field of defect repair of oil and gas pipelines, in particular to a composite material preparation device and a preparation method for field pipeline reinforcement.
  • Dimensional reinforced composites have a wide range of applications in various fields due to their small specific gravity, specific strength and specific modulus.
  • the commonly used preparation methods are: hand lay-up, compression molding, vacuum introduction, and pultrusion. .
  • composite materials are gradually being applied to the repair of defects in oil and natural gas pipelines.
  • the molding and vacuum introduction molding methods can ensure the infiltration of resin and reinforcing fibers, and at the same time maximize the proportion of reinforcing fibers, and the finished products have excellent performance, but because of the special needs Equipment, and need to make molds, so the on-site repair efficiency of oil and gas pipelines is low, subject to field conditions and more difficult to apply.
  • preforming pultrusion
  • hand lay-up The preform is pre-formed into a composite coil by pultrusion according to the pipe diameter and then wound around the pipe defect for repair.
  • This method can obtain stable performance due to prefabrication at the factory, but due to the hardness of the composite coil itself. Larger, it is difficult to ensure the complete fitting of the coil and the pipe when it is installed on the pipeline. Especially in the case of abnormalities such as pipe welds and pipe diameter deformation, it is easy to produce empty drums, and the repair effect is greatly damaged.
  • hand lay-up refers to the winding of dry reinforcing fiber material at the repair site, while painting the resin, and making the repaired composite material on site, but it is affected by uncontrollable factors such as man-made or environment, such as resin viscosity at low temperature. Large, fiber cloth is not saturated, the amount of dipping is not uniform, environmental humidity and sand and other factors will lead to loss of composite properties, thus affecting Fix the effect.
  • the object of the present invention is to provide a solution to the above problems, and to realize vacuum introduction of a multi-layered roll by using a moldless method, which has the characteristics of high infiltration efficiency, short construction time, good mechanical properties of the finished product, and can be constructed at a low temperature site.
  • the utility model can also be used as a composite material preparation device and a preparation method for field pipeline reinforcement by using a resin with higher viscosity as an impregnating resin.
  • a composite material preparation device for field pipeline reinforcement comprising a temperature control stirring device, a reinforcing fiber cloth infiltration device, a vacuum device, the temperature control stirring device, and a reinforcing fiber.
  • the cloth infiltration device and the vacuum device are sequentially connected, and the reinforcing fiber cloth infiltration device is composed of a reel, a vacuum bag film, a reinforcing fiber cloth and a flow guiding net, and the vacuum bag film is set outside the reel, the reinforcing fiber cloth and the diversion net.
  • the reel is provided with two baffles having a limiting function, and the reinforcing fiber cloth and the diversion net are located between the two baffles, and the inner side of the baffle is concavely formed to form a storage compartment, and the storage compartment is There are a plurality of inlet and outlet glue holes, and the two ends of the reel are respectively provided with a glue joint and a glue joint, and the glue joint and the glue joint are composed of an inner joint and an outer joint, and the outer joint and the inner joint are The inner joint is provided with a plurality of inlet and outlet joints, and the outer wall of the inner joint and the outer side surface of the baffle are covered with a drainage net, and the drainage net covering the outer side surface of the baffle is blocked. Edge baffles extending into the reservoir grid glue.
  • the reinforcing fiber cloth and the flow guiding net are distributed in a layered interval and are stacked on a reel.
  • the joint between the outer joint and the inner joint is respectively provided with a sealing disc, and an O-ring is disposed between the sealing discs, and two ends of the vacuum bag film are respectively located at the rubber joint and the rubber joint
  • the sealing disc is sealed and sealed by the outer joint and the threaded structure of the inner joint.
  • the sealing disc is provided with an annular card slot matched with the O-ring, and the annular card slot is one or more.
  • the baffle is detachably coupled to the spool and the spacing between the baffles is adjustable.
  • the temperature-controlled stirring device comprises a barrel body, a cover plate, a stirrer and a temperature-controlled heating belt, and the temperature-controlled heating belt is wrapped around the outside of the barrel, and the two ends of the heating belt are connected by a buckle, and the stirrer is fixed on the
  • the barrel body is provided with a rubber hose, and one end of the rubber hose extends to the bottom of the barrel body, and the other end is connected with the outer joint of the rubber joint.
  • the vacuum device comprises a vacuum pump and a buffer tank, and the vacuum pump and the buffer tank are connected by a connecting pipe.
  • the buffer tank is provided with a vacuum gauge and a glue connecting pipe, and the buffer tank is provided with a rubber storage tank.
  • the canister has one end of the glue connection pipe located in the glue storage tank, and the other end is in communication with the outer joint of the glue outlet pipe, and the rubber pipe is provided with a control valve.
  • the reinforcing fiber cloth may be glass fiber cloth, carbon fiber cloth, aramid fiber cloth, basalt fiber cloth, boron fiber, polyester fiber, nylon fiber, polypropylene fiber, polyimide fiber or the like.
  • the vacuum bag membrane has a water vapor transmission amount of ⁇ 0.006 g/m ⁇ 24 h (40° C. ⁇ 90% RH), an oxygen permeation amount ⁇ 0.024 ml/(m ⁇ 24 h. ⁇ 0.1 mPa), and a composite strength of >15. Newton / 15mm, edge strength > 20 Newton / 15mm, puncture strength > 24 pounds.
  • a method for preparing a composite material for field pipeline reinforcement the method steps are as follows:
  • the amount of infiltration resin and reinforcing fiber cloth is proportional to the mass percentage of 50:50 ⁇ 30:70, and the specific gravity directly determines the mechanical properties of the finished product.
  • the viscosity of the infiltrated resin is ⁇ 2000cps,20 °C ⁇ stirring temperature ⁇ 23 ° C; when 2000 cps ⁇ immersion resin viscosity ⁇ 8000 cps, 23 ° C ⁇ stirring temperature ⁇ 35 ° C; when 8000 cps ⁇ immersion resin viscosity ⁇ 20000 cps, 35 ° C ⁇ stirring temperature ⁇ 45 ° C, using temperature to adjust the resin viscosity to The optimum wetting speed range of the method; the rotation speed of the stirring device is ⁇ 200 rpm, to ensure the complete mixing of the resin and the curing agent;
  • the vacuum degree is ⁇ 0.01MPa, so that the negative pressure of at least 0.01MPa is formed in the reinforcing fiber cloth package, the air inside the reinforcing fiber cloth roll is extracted, and the resin is replaced and combined with the reinforcing fiber, thereby greatly improving the integrity of the finished product.
  • the amount of resin glue for reinforcing fibers can be accurately calculated, thereby converting the performance of the finished product, and the quality of the site can be precisely controlled; the above-mentioned negative pressure of at least 0.01 MPa can fully eject the internal air of the reinforcing fiber cloth roll, and can provide the adhesive. Enough power to infiltrate into the reinforcing fiber voids;
  • the mixed resin enters from the rubber joint, passes through the drainage net, enters the reinforcing fiber cloth roll from the outer edge of the baffle and the rubber through hole, and is extracted by the rubber joint, and the diversion net acts as a diversion force, so that Uniform resin wetting
  • the performance of the finished product is precisely controlled by the amount of resin glue used in the reinforcing fiber.
  • the quality method is as follows: the weight of the reinforcing fiber cloth rolls of different specifications is fixed, and the amount of glue that cannot be infiltrated into the reinforcing fibers mainly includes the amount of glue storage glue, the residual amount of the infiltration passage, and the excess part of the glue amount, and the same specification is used. Auxiliary materials, based on test data, give an overall fixed value.
  • the finished product contains 38% specific gravity, 989MPa tensile strength, 1.29kg rubber, 42.1% cement content, 893MPa tensile strength, 2.09kg rubber content .
  • the vacuum bag film is a plastic heat sealing bag film; the reinforcing fiber cloth infiltration bag is a production product, and the packaging is vacuum packaged, which can reduce the water content of the reinforcing fiber, greatly improve the bonding force of the reinforcing fiber and the infiltrating resin during use, thereby improving the compounding. Finished material properties.
  • the temperature of the pipeline defect repair can be greatly improved, and it can be constructed in the range of -15 °C -40 °C, and the constant temperature of the impregnated resin can be determined according to the properties of the resin used, and the immersion effect can be improved. Infiltration efficiency.
  • the device is equipped with internal and external joint sealing structure and drainage and diversion structure, which can make the low viscosity tree finger ( ⁇ 5000cps) infiltrate at the expected speed and enhance the infiltration effect.
  • the resin viscosity is greatly increased, and a resin having a viscosity of 20,000 cps or less can be used as the immersion resin.
  • the method combines the advantages of pre-forming of reinforcing fiber composite material, vacuum introduction molding and hand lay-up molding, and the mechanical properties of the finished composite material are improved by 1.5 times and the construction efficiency is increased by 2 times.
  • the present invention can be applied to the field of defect repair of oil and natural gas pipelines.
  • Figure 1 is a schematic view of the overall structure of the present invention
  • FIG. 2 is a schematic structural view of a temperature control stirring device of the present invention
  • Figure 3 is a schematic structural view of a vacuum device of the present invention.
  • Figure 4 is a schematic view showing the structure of the reinforcing fiber cloth infiltration device of the present invention.
  • Figure 5 is a schematic view showing the structure of the glue joint and the glue joint of the present invention.
  • FIG. 6 is a schematic view showing the structure of the baffle of the present invention.
  • a composite material preparation device for field pipeline reinforcement includes a temperature control stirring device 1, a reinforcing fiber cloth infiltration device 2, a vacuum device 3, and the temperature control stirring device 1.
  • the reinforcing fiber cloth wetting device 2 and the vacuum device 3 are sequentially connected, and the reinforcing fiber cloth wetting device 2 is composed of a reel 21, a vacuum bag film 28, a reinforcing fiber cloth 22 and a flow guiding net 23, and the reinforcing fiber cloth 22 and the diversion flow
  • the nets 23 are distributed in a layered manner and are stacked on a reel 21 which is fitted over the reel 21, the reinforcing fiber cloth 22 and the flow guiding net 23, and the reel 21 is provided with two sets.
  • the baffle 27 is used, and the reinforcing fiber cloth 22 and the flow guiding net 23 are located between the two baffles 27, and the inner side of the baffle 27 is concavely formed to form the storage compartment 7, and the storage compartment 7 is convenient for reinforcing both sides of the fiber cloth 22.
  • the plastic storage bag 7 is provided with a plurality of inlet and outlet glue through holes 8, and the two ends of the reel 21 are respectively provided with a glue joint and a glue joint, and the glue joint
  • the rubber joints are composed of an inner joint 25 and an outer joint 24, and the outer joint 24 and the inner joint 25 are screwed and connected, and the inner joint 25 is provided with a plurality of inlet and outlet rubber ports 6, the inner joint
  • the outer wall of the outer wall 25 and the outer side of the baffle 27 are covered with a drainage net 26, and the drainage net 26 serves as a drainage for the infiltrating resin, and the drainage net 26 covering the outer side of the baffle 27 extends from the edge of the baffle 27 to the baffle.
  • the drainage mesh 26 can be of the same material as the flow guide mesh 23.
  • the device is provided with a sealing structure of the inner and outer joints 24 and a drainage and drainage structure, so that the low-viscosity tree finger ( ⁇ 5000 cps) can be infiltrated at a desired speed to enhance the infiltration effect.
  • the resin viscosity is greatly increased, and a resin having a viscosity of 20,000 cps or less can be used as the immersion resin.
  • the width of the drainage net 26 at the outer edge of the baffle 27 is 10% to 70% of the outer edge of the baffle 27, and is evenly distributed along the circumference.
  • the viscosity of the impregnating resin is ⁇ 1000 cps, the width of the edge of the baffle 27 is preferably ⁇ 10%; the viscosity of 1000cps ⁇ the viscosity of the immersion resin is ⁇ 12000 cps, and the percentage of the width of the baffle 27 edge-guided mesh 23 is preferably ⁇ 45%; 12000 cps ⁇ The viscosity of the immersion resin is ⁇ 20000 cps, and the width of the edge of the baffle 27 is preferably ⁇ 45%.
  • the sealing joint of the outer joint 24 and the inner joint 25 is respectively provided with a sealing disc.
  • the design of the sealing disc facilitates the joint of the outer joint 24 with the inner joint 25, and the sealing area is enlarged, and the sealing effect is improved.
  • the O-ring 5 is provided to provide a good sealing effect.
  • the two ends of the vacuum bag film 28 are respectively located in the sealing plates of the glue joint and the glue joint, and the thread structure of the outer joint 24 and the inner joint 25 are adopted.
  • the fastening seal is convenient for installation and disassembly.
  • One end of the inner joint 25 is connected to the outer joint 24, and the other end is engaged in the reel 21.
  • the sealing disc is provided with an annular card slot matched with the O-ring 5, and the annular card slot is one or more, which improves the sealing effect, enhances the sealing performance of the inner joint 25 and the outer joint 24, and also improves the sealing performance.
  • the sealing properties of the vacuum bag film 28 are obtained.
  • the baffle 27 is detachably connected to the reel 21, and the spacing between the two baffles 27 is adjustable, and can be adjusted according to specific requirements of the site to meet the needs of different specifications.
  • the outer joint 24 is provided with a handle 4 for easy installation and disassembly during field work.
  • the temperature control stirring device 1 comprises a barrel body 11, a cover plate 13, a stirrer and a temperature-controlled heating belt 12, and the temperature-controlled heating belt 12 is wrapped around the barrel body 11, and the two ends of the heating belt are connected by a buckle.
  • the temperature-controlled heating belt 12 is conveniently carried and installed on site.
  • the agitator is fixed on the cover plate 13.
  • the barrel body 11 is provided with a hose-pulling tube 14 extending from one end to the bottom of the barrel 11 and the other end to the glue.
  • the outer joint 24 of the joint is connected. Since the viscosity of the resin decreases with the increase of temperature, the use of the temperature-controlled stirring device 1 can determine the constant temperature of the infiltrated resin according to the properties of the resin used, and can improve the infiltration effect and improve the infiltration efficiency.
  • the vacuum device 3 includes a vacuum pump 31 and a buffer tank 32.
  • the vacuum pump 31 and the buffer tank 32 are connected by a connecting pipe.
  • the buffer tank 32 is provided with a vacuum gauge 34 and a glue connecting pipe 35, and the buffer tank 32 is provided with a plastic storage tank 33.
  • One end of the rubber discharge connecting pipe 35 is located in the plastic storage tank 33, and the other end is connected with the outer joint 24 of the rubber discharge joint.
  • the rubber discharge pipe is provided with a control valve 36 and a control valve 36. Perform throttling control.
  • the reinforcing fiber cloth 22 may be a glass fiber cloth, a carbon fiber cloth, an aramid fiber cloth, a basalt fiber cloth, a boron fiber, a polyester fiber, a nylon fiber, a polypropylene fiber, a polyimide fiber or the like.
  • the guide net 23 surface density 60g / m 2 -400g / m 2 , the mesh shape of the diamond, to ensure uniform wetting good wetting effect.
  • the vapor permeation amount of the vacuum bag film 28 is ⁇ 0.006g/m ⁇ 24h (40° C. ⁇ 90% RH), the oxygen permeation amount is ⁇ 0.024 ml/(m ⁇ 24 h. ⁇ 0.1 mPa), and the composite strength is >15 Newtons/ 15mm, edge-sealing strength>20N/15mm, puncture strength>24 lbs; water vapor transmission and oxygen permeation are to ensure that the inner reinforcing fiber cloth 22 is affected by environmental moisture and improve the bonding ability of resin and reinforcing fiber.
  • the edge sealing strength, the composite strength and the puncture strength are to ensure that the vacuum bag film 28 is leaked during transportation, storage and infiltration to avoid infiltration failure.
  • the invention relates to a method for preparing a composite material for field pipeline reinforcement, and the method steps are as follows:
  • the vacuum device 3 is opened, the vacuum degree is 0.08 MPa, and a negative pressure of at least 0.08 MPa is formed in the reinforcing fiber cloth 22, and the air inside the reinforcing fiber cloth 22 is taken out and replaced by the resin, and combined with the reinforcing fiber to enhance the integration of the finished product. Sex, and carry out accurate calculation of the amount of resin glue for reinforcing fibers, and accurately control the performance and quality of the finished product on site;
  • the infiltration resin is drawn into the buffer tank 32 as a starting point, the vacuum device 3 continues to run for more than 2 minutes, the vacuum device 3 is closed, and the excess rubber is withdrawn;
  • the mixed resin enters through the glue joint, passes through the drainage net 26, enters the coil of the reinforcing fiber cloth 22 from the outer edge of the baffle 27 and the in-and-out glue through hole 8, and is extracted by the glue joint;
  • the reinforcing fiber cloth infiltration device is disconnected from the vacuum device 3 and the temperature control stirring device 1 respectively, and the inner reinforcing fiber cloth 22 is taken out;
  • the tensile strength, the elastic modulus, the bending strength, and the interlaminar shear strength are all significantly improved, and the resin content is also lowered.

Abstract

一种用于现场管道增强的复合材料制备装置及制备方法，包括控温搅拌装置(1)、增强纤维布浸润装置(2)、真空装置(3)，所述控温搅拌装置(1)、增强纤维布浸润装置(2)、真空装置(3)依次连通，所述增强纤维布浸润装置(2)由卷轴(21)、真空袋膜(28)、增强纤维布(22)和导流网(23)组成，所述真空袋膜(28)套装于卷轴(21)、增强纤维布(22)和导流网(23)外，内接头(25)的外壁与挡板(27)外侧面均覆盖有引流网(26)，覆盖在挡板(27)外侧面上的引流网(26)从挡板(27)的边缘延伸至挡板(27)的储胶格(7)内。与现有技术相比，通过采用无模具方式实现了多层卷状物真空导入的应用，结合了增强纤维复合材料预成型、真空导入成型与手糊成型的优点，制作的复合材料成品机械性能提升1.5倍，施工效率提升2倍。

Description

一种用于现场管道增强的复合材料制备装置及制备方法 技术领域
本发明涉及一种石油天然气管道缺陷修复领域，尤其涉及一种用于现场管道增强的复合材料制备装置及制备方法。
背景技术
维增强复合材料因其比重小、比强度和比模量大的特点，在各个领域都有较广泛的应用，目前常用的制备方法有：手糊成型、模压成型、真空导入、拉挤成型方法。目前复合材料也正逐步应用于石油天然气管道缺陷修复方面，模压成型、真空导入成型方法能保证树脂与增强纤维的浸润，同时最大程度提升增强纤维占比，制作的成品性能优异，但由于需要专用设备，且需制作模具，因此在石油天然气管道现场修复效率低，受现场条件限制多，应用比较困难。
目前能应用到石油天然气管道缺陷修复现场的制备方法主要有以下两种：预成型(拉挤成型)、手糊成型。预成型是根据管径尺寸在工厂通过拉挤成型的方式预制成复合卷材，然后缠绕在管道缺陷处进行修复，该方法由于在工厂预制可以获得稳定的性能，但由于复合卷材本身硬度较大，在安装至管道上时很难保证卷材与管道的完全贴合，特别是遇到管道焊缝、管径变形等存在异形情况时，易产生空鼓，而造成修复效果大幅折损甚止失效；手糊成型是指在修复现场缠绕干增强纤维材料，同时涂刷树脂，现场制作成修复的复合材料，但受人为或环境等不可控因素影响比较大，如低温时树脂粘度太大，纤维布未浸透，浸胶量不均匀，环境湿度和风沙等因素，会导致复合材料性能损失，从而影响 修复效果。
发明内容
本发明的目的就在于提供一种解决了上述问题，采用无模具方式实现了多层卷状物真空导入，具有浸润效率高，施工时间短、成品机械性能好等特点，可在低温现场施工，并能以粘度较高的树脂作为浸润树脂，用于现场管道增强的复合材料制备装置及制备方法。
为了实现上述目的，本发明采用的技术方案是：一种用于现场管道增强的复合材料制备装置，包括控温搅拌装置、增强纤维布浸润装置、真空装置，所述控温搅拌装置、增强纤维布浸润装置、真空装置依次连通，所述增强纤维布浸润装置由卷轴、真空袋膜、增强纤维布和导流网组成，所述真空袋膜套装于卷轴、增强纤维布和导流网外，所述卷轴上套装两个有起限位作用的挡板，所述增强纤维布与导流网位于两挡板之间，所述挡板内侧内凹形成储胶格，所述储胶格上开设有若干进出胶通孔，所述卷轴两端分别设有进胶接头和出胶接头，所述出胶接头和进胶接头均由内接头和外接头构成，所述外接头与内接头之间通过螺纹紧固连接，所述内接头上开设有若干进出胶口，所述内接头的外壁与挡板外侧面均覆盖有引流网，覆盖在挡板外侧面上的引流网从挡板的边缘延伸至挡板的储胶格内。
作为优选，所述增强纤维布与导流网之间呈层状间隔分布，且叠卷于卷轴上。
作为优选，所述外接头与内接头的连接处分别设有密封盘，所述密封盘之间内设有O型密封圈，所述真空袋膜的两端分别位于进胶接头和出胶接头的密封盘内，并通过外接头与内接头的螺纹结构进行紧固密封。
作为优选，所述密封盘上开设有与O型密封圈相匹配的环形卡槽，所述环形卡槽为一个或一个以上。
作为优选，所述挡板与卷轴可拆卸连接，且两挡板之间的间距可调。
作为优选，所述控温搅拌装置包括桶体、盖板、搅拌器和控温加热带组成，所述控温加热带包裹于桶体外，加热带两端通过卡扣进行连接，搅拌器固定于盖板上，所述桶体上设有抽胶管，所述抽胶管一端延伸至桶体底部，另一端与进胶接头的外接头连接。
作为优选，所述真空装置包括真空泵和缓冲罐，所述真空泵和缓冲罐之间通过连接管连通，所述缓冲罐上设有真空表和出胶连接管，所述缓冲罐内设有储胶罐，所述出胶连接管一端位于储胶罐内，另一端与出胶接头的外接头连通，所述出胶管上设有控制阀。
作为优选，所述增强纤维布可为玻璃纤维布、碳纤维布、芳纶纤维布、玄武岩纤维布、硼纤维、聚酯纤维、尼龙纤维、聚丙烯纤维、聚酰亚胺纤维等。
作为优选，所述导流网面密度60g/m2-400g/m2，网孔形状为菱形，确保浸润均匀，浸润效果好。
作为优选，所述真空袋膜的水蒸气透过量≤0.006g/m·24h(40℃·90％RH)，氧气透过量≤0.024ml/(m·24h.·0.1mPa)，复合强度>15牛顿/15mm，封边强度>20牛顿/15mm，穿刺强度>24磅。
一种用于现场管道增强的复合材料制备方法，方法步骤如下：
a.进行设备检查，将控温搅拌装置、增强纤维布浸润装置和真空装置按要求进行连接；
b.把合适量的浸润用树脂按比例倒入控温搅拌装置，选择合适温度、搅拌速度，搅拌时间≥1min；
浸润用树脂与增强纤维布的用量按质量百分比50:50～30:70配比，配比比重直接决定成品机械性能，为获得最佳增强纤维复合材料机械性能，当浸润树脂粘度≤2000cps，20℃≤搅拌温度≤23℃；当2000cps＜浸润树脂粘度＜8000cps，23℃＜搅拌温度≤35℃；当8000cps≤浸润树脂粘度≤20000cps，35℃＜搅拌温度＜45℃，利用温度调节树脂粘度至该方法最佳浸润速度范围；搅拌装置的转速≥200转/分，保证树脂与固化剂的混合完全；
c.开启真空装置，真空度≥0.01MPa，使增强纤维布包内形成至少0.01MPa的负压，增强纤维布卷内部空气被抽出，由树脂替换而与增强纤维结合，大大提升成品的一体性，而且可以准确计算增强纤维用树脂胶量，从而换算出成品性能，可精确控制现场质量；上述至少0.01MPa的负压可使增强纤维布卷内部空气被充分赶出，同时能给粘胶提供足够动力浸润到增强纤维空隙；
d.以浸润用树脂抽入到缓冲罐为计时起点，真空装置继续运行1min以上，关闭真空装置，该步骤可将多余胶料抽出，防止空气倒流回增强纤维布卷，提升增强纤维复合材料机械性能；
e.浸润过程，混合后的树脂从进胶接头进入，经过引流网，从挡板外缘以及进出胶通孔进入增强纤维布卷，由出胶接头抽出，导流网起导流作用，使树脂浸润均匀
f.将增强纤维布浸润装置分别与真空装置、控温搅拌装置断开，将内部增强纤维布卷取出；
d.将增强纤维布卷沿管道周向进行缠绕，缠绕时确保拉伸力均匀，提高了增强纤维复合材料与管道的贴合，同时进行消泡处理，消除增强纤维层与层之间空隙，使复合材料结合为一体化，对制成品性能有较大提升，直至缠绕完毕。
作为优选，步骤c中，通过增强纤维用树脂胶量精确控制现场成品性能与 质量的方法为：不同规格增强纤维布卷重量是固定的，无法浸润到增强纤维的胶量主要包含储胶格存胶量、浸润通路残留量、抽出多余部分胶量三部分，对于使用相同规格辅助材料，根据测试数据可给出一个总体固定值。示例：400g/m2玻璃纤维单向布，13.5m长规格，使用8.3mm直径的挡板，无法浸润到增强纤维的总胶量为0.13kg，总增强纤维质量为1.6kg，用胶量1.11kg，成品含胶量比重38％，抗拉强度989MPa；用胶量1.29kg，成品含胶量比重42.1％，抗拉强度893MPa；用胶量2.09kg，成品含胶量比重55.1，抗拉强度682Mpa。在管道修复设计强度一定的情况下，可根据换算要求用胶量管道修复时，设计的复合材料强度一定的情况下，可根据换算给出用胶量范围，若无法达到则现场质量不过关。
作为优选，真空袋膜为塑料热封袋膜；增强纤维布浸润包为生产产品，包装采用真空包装，可降低增强纤维含水量，大大提升使用时增强纤维与浸润树脂的结合力，从而提升复合材料成品性能。
与现有技术相比，本发明的优点在于：
(1)采用控温搅拌装置，对管道缺陷修复现场温度大范围提升，可在-15℃-40℃范围内施工，而且可根据使用的树脂性质确定浸润的树脂恒定温度，可提升浸效果提高浸润效率。
(2)装置设内外接头密封结构及引流导流结构，可使低粘度树指(＜5000cps﹚按预期速度进行浸润，提升浸润效果。对管道缺陷修复现场使用树脂粘度大范围提升，可使用粘度20000cps以下的树脂作为浸润树脂。
(4)采用无模具方式实现了多层卷状物真空导入的应用。
(5)本方法结合了增强纤维复合材料预成型、真空导入成型与手糊成型的优点，制作的复合材料成品机械性能提升1.5倍，施工效率提升2倍。
(6)本发明可应用到石油天然气管道缺陷修复领域。
附图说明
图1为本发明整体结构示意图；
图2为本发明控温搅拌装置结构示意图；
图3为本发明真空装置结构示意图；
图4为本发明增强纤维布浸润装置结构示意图；
图5为本发明进胶接头和出胶接头的结构示意图；
图6为本发明挡板结构示意图。
图中：1.控温搅拌装置；11.桶体；12.控温加热带；13.盖板；14.抽胶管；2.增强纤维布浸润装置；21.卷轴；22.增强纤维布；23.导流网；24.外接头；25.内接头；26.引流网；27.挡板；28.真空袋膜；3.真空装置；31.真空泵；32.缓冲罐；33.储胶罐；34.真空表；35.出胶连接管；36.控制阀；4.把手；5.O型密封圈；6.进出胶口；7.储胶格；8.进出胶通孔。
具体实施方式
下面将对本发明作进一步说明。
实施例1：参见图1至图6，一种用于现场管道增强的复合材料制备装置，包括控温搅拌装置1、增强纤维布浸润装置2、真空装置3，所述控温搅拌装置1、增强纤维布浸润装置2、真空装置3依次连通，所述增强纤维布浸润装置2由卷轴21、真空袋膜28、增强纤维布22和导流网23组成，所述增强纤维布22与导流网23之间呈层状间隔分布，且叠卷于卷轴21上，所述真空袋膜28套装于卷轴21、增强纤维布22和导流网23外，所述卷轴21上套装两个有起限位作 用的挡板27，所述增强纤维布22与导流网23位于两挡板27之间，所述挡板27内侧内凹形成储胶格7，储胶格7方便增强纤维布22两侧进胶，确保增强纤维布22内部浸润均匀，所述储胶格7上开设有若干进出胶通孔8，所述卷轴21两端分别设有进胶接头和出胶接头，所述出胶接头和进胶接头均由内接头25和外接头24构成，所述外接头24与内接头25之间通过螺纹紧固连接，所述内接头25上开设有若干进出胶口6，所述内接头25的外壁与挡板27外侧面均覆盖有引流网26，引流网26对浸润用树脂起到引流作用，覆盖在挡板27外侧面上的引流网26从挡板27的边缘延伸至挡板27的储胶格7内，在抽真空过程中，真空袋膜28很容易吸附在挡板27边缘，导致浸润用树脂无法从外缘进胶，出现浸润不均匀的情况，引流网26的设计有效解决了外缘进胶的问题，大大提高了浸润效果。引流网26可采用与导流网23相同的材料。装置设置内外接头24密封结构及引流导流结构，可使低粘度树指(＜5000cps﹚按预期速度进行浸润，提升浸润效果。对管道缺陷修复现场使用树脂粘度大范围提升，可使用粘度20000cps以下的树脂作为浸润树脂。
为提高浸润效果，挡板27外缘的引流网26宽度的占挡板27外缘的宽度比为10％-70％，并均匀沿圆周分布。浸润树脂粘度≤1000cps，挡板27边缘导流网23宽度占比优选≤10％；1000cps＜浸润树脂粘度＜12000cps，10％＜挡板27边缘导流网23宽度占比优选＜45％；12000cps＜浸润树脂粘度＜20000cps，挡板27边缘导流网23宽度占比优选≥45％。
所述外接头24与内接头25的连接处分别设有密封盘，密封盘的设计方便外接头24与内接头25对接，且加大了密封面积，提高密封效果，所述密封盘之间内设有O型密封圈5，起很好的密封效果，所述真空袋膜28的两端分别位于进胶接头和出胶接头的密封盘内，并通过外接头24与内接头25的螺纹结构 进行紧固密封，安装拆卸方便，所述内接头25一端与外接头24连接，另一端卡接于卷轴21内。所述密封盘上开设有与O型密封圈5相匹配的环形卡槽，所述环形卡槽为一个或一个以上，提高密封效果，增强内接头25与外接头24的密封性能，同时也提高了真空袋膜28的密封性能。
所述挡板27与卷轴21可拆卸连接，且两挡板27之间的间距可调，可根据现场具体要求进行调节，适应不同规格产品需要。所述外接头24上设有把手4，方便现场工作过程中进行安装拆卸。
所述控温搅拌装置1包括桶体11、盖板13、搅拌器和控温加热带12组成，所述控温加热带12包裹于桶体11外，加热带两端通过卡扣进行连接，控温加热带12方便携带以及现场安装，搅拌器固定于盖板13上，所述桶体11上设有抽胶管14，所述抽胶管14一端延伸至桶体11底部，另一端与进胶接头的外接头24连接。由于树脂粘度随温度升高呈下降趋势，控温搅拌装置1的使用，可根据使用的树脂性质确定浸润的树脂恒定温度，可提升浸效果提高浸润效率。
所述真空装置3包括真空泵31和缓冲罐32，所述真空泵31和缓冲罐32之间通过连接管连通，所述缓冲罐32上设有真空表34和出胶连接管35，所述缓冲罐32内设有储胶罐33，所述出胶连接管35一端位于储胶罐33内，另一端与出胶接头的外接头24连通，所述出胶管上设有控制阀36，控制阀36进行节流控制。
所述增强纤维布22可为玻璃纤维布、碳纤维布、芳纶纤维布、玄武岩纤维布、硼纤维、聚酯纤维、尼龙纤维、聚丙烯纤维、聚酰亚胺纤维等。所述导流网23面密度60g/m2-400g/m2，网孔形状为菱形，确保浸润均匀，浸润效果好。所述真空袋膜28的水蒸气透过量≤0.006g/m·24h(40℃·90％RH)，氧气透过量≤0.024ml/(m·24h.·0.1mPa)，复合强度>15牛顿/15mm，封边强度>20牛顿 /15mm，穿刺强度>24磅；水蒸气透过量及氧气透过量是保证封存在内部的增强纤维布22卷受环境湿气影响而提高树脂与增强纤维的结合能力，封边强度、复合强度、穿刺强度是保证真空袋膜28运输、存储及浸润过程漏气而避免浸润失败。
本发明一种用于现场管道增强的复合材料制备方法，方法步骤如下：
a.进行设备检查，将控温搅拌装置1、增强纤维布浸润装置2和真空装置3按要求进行连接，增强纤维布22采用玻璃纤维方格布、碳纤维布、玻璃纤维方格布分别进行试验；
b.把合适量的浸润用树脂按比例倒入控温搅拌装置1，选择合适温度、搅拌速度，搅拌时间2min，浸润用树脂与玻璃纤维方格布质量比45:55；浸润用树脂与碳纤维布质量比42:58；浸润用树脂与玻璃纤维方格布质量比45:55；
c.开启真空装置3，真空度0.08MPa，使增强纤维布22包内形成至少0.08MPa的负压，增强纤维布22卷内部空气被抽出由树脂替换，并与增强纤维结合，提升成品的一体性，并进行增强纤维用树脂胶量的准确计算，进行现场成品性能与质量的精确控制；
d.以浸润用树脂抽入到缓冲罐32为计时起点，真空装置3继续运行2min以上，关闭真空装置3，将多余胶料抽出；
e.进行浸润，混合后的树脂从进胶接头进入，经过引流网26，从挡板27外缘以及进出胶通孔8进入增强纤维布22卷，由出胶接头抽出，；
f.将增强纤维布浸润装置分别与真空装置3、控温搅拌装置1断开，将内部增强纤维布22卷取出；
d.将增强纤维布22卷沿管道周向进行缠绕，缠绕时确保拉伸力均匀，同时进行消泡处理，使复合材料结合为一体化，直至缠绕完毕。
按上述工艺方法与现有搅拌温度25度的手糊成型工艺相比较，见下表
Figure PCTCN2016095920-appb-000001
可见，采用本发明后，抗拉强度、弹性模量、弯曲强度、层间剪切强度均得到非常显著的提高，且树脂含量也得以降低。
以上对本发明所提供的一种用于现场管道增强的复合材料制备装置及制备方法进行了详尽介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，对本发明的变更和改进将是可能的，而不会超出附加权利要求所规定的构思和范围，综上所述，本说明书内容不应理解为对本发明的限制。

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  1. 一种用于现场管道增强的复合材料制备装置，其特征在于：包括控温搅拌装置、增强纤维布浸润装置、真空装置，所述控温搅拌装置、增强纤维布浸润装置、真空装置依次连通，所述增强纤维布浸润装置由卷轴、真空袋膜、增强纤维布和导流网组成，所述真空袋膜套装于卷轴、增强纤维布和导流网外，所述卷轴上套装两个有起限位作用的挡板，所述增强纤维布与导流网位于两挡板之间，所述挡板内侧内凹形成储胶格，所述储胶格上开设有若干进出胶通孔，所述卷轴两端分别设有进胶接头和出胶接头，所述出胶接头和进胶接头均由内接头和外接头构成，所述外接头与内接头之间通过螺纹紧固连接，所述内接头上开设有若干进出胶口，所述内接头的外壁与挡板外侧面均覆盖有引流网，覆盖在挡板外侧面上的引流网从挡板的边缘延伸至挡板的储胶格内。
  2. 根据权利要求1所述的一种用于现场管道增强的复合材料制备装置，其特征在于：所述增强纤维布与导流网之间呈层状间隔分布，且叠卷于卷轴上。
  3. 根据权利要求1或2所述的一种用于现场管道增强的复合材料制备装置，其特征在于：所述外接头与内接头的连接处分别设有密封盘，所述密封盘之间内设有O型密封圈，所述真空袋膜的两端分别位于进胶接头和出胶接头的密封盘内，并通过外接头与内接头的螺纹结构进行紧固密封。
  4. 根据权利要求3所述的一种用于现场管道增强的复合材料制备装置，其特征在于：所述密封盘上开设有与O型密封圈相匹配的环形卡槽，所述环形卡槽为一个或一个以上。
  5. 根据权利要求1所述的一种用于现场管道增强的复合材料制备装置，其特征在于：所述挡板与卷轴可拆卸连接，且两挡板之间的间距可调。
  6. 根据权利要求1所述的一种用于现场管道增强的复合材料制备装置，其特征在于：所述控温搅拌装置包括桶体、盖板、搅拌器和控温加热带组成，所 述控温加热带包裹于桶体外，加热带两端通过卡扣进行连接，搅拌器固定于盖板上，所述桶体上设有抽胶管，所述抽胶管一端延伸至桶体底部，另一端与进胶接头的外接头连接。
  7. 根据权利要求1所述的一种用于现场管道增强的复合材料制备装置，其特征在于：所述真空装置包括真空泵和缓冲罐，所述真空泵和缓冲罐之间通过连接管连通，所述缓冲罐上设有真空表和出胶连接管，所述缓冲罐内设有储胶罐，所述出胶连接管一端位于储胶罐内，另一端与出胶接头的外接头连通，所述出胶管上设有控制阀。
  8. 根据权利要求1所述的一种用于现场管道增强的复合材料制备方法，其特征在于，方法步骤如下：
    a.进行设备检查，将控温搅拌装置、增强纤维布浸润装置和真空装置按要求进行连接；
    b.把合适量的浸润用树脂按比例倒入控温搅拌装置，选择合适温度、搅拌速度，搅拌时间≥1min，所述浸润用树脂与增强纤维布的用量按质量百分比50:50～30:70配比，搅拌温度为20℃～45℃；
    c.开启真空装置，真空度≥0.01MPa，使增强纤维布包内形成至少0.01MPa的负压，增强纤维布卷内部空气被抽出由树脂替换，并与增强纤维结合，提升成品的一体性，并进行增强纤维用树脂胶量的准确计算，进行现场成品性能与质量的精确控制；
    d.以浸润用树脂抽入到缓冲罐为计时起点，真空装置继续运行1min以上，关闭真空装置，将多余胶料抽出；
    e.浸润过程，混合后的树脂从进胶接头进入，经过引流网，从挡板外缘以及进出胶通孔进入增强纤维布卷，由出胶接头抽出；
    f.将增强纤维布浸润装置分别与真空装置、控温搅拌装置断开，将内部增强纤维布卷取出；
    d.将增强纤维布卷沿管道周向进行缠绕，缠绕时确保拉伸力均匀，同时进行消泡处理，使复合材料结合为一体化，直至缠绕完毕。
  9. 根据权利要求8所述的一种用于现场管道增强的复合材料制备方法，其特征在于步骤b中，搅拌装置的转速≥200转/分；当浸润树脂粘度≤2000cps，20℃≤搅拌温度≤23℃；当2000cps＜浸润树脂粘度＜8000cps，23℃＜搅拌温度≤35℃；当8000cps≤浸润树脂粘度≤20000cps，35℃＜搅拌温度＜45℃。
  10. 根据权利要求8所述的一种用于现场管道增强的复合材料制备方法，其特征在于：步骤c中，通过增强纤维用树脂胶量精确控制现场成品性能与质量的方法为，不同规格增强纤维布卷重量是固定的，无法浸润到增强纤维的胶量主要包含储胶格存胶量、浸润通路残留量、抽出多余部分胶量三部分，对于使用相同规格辅助材料，根据测试数据可给出一个总体固定值，在管道修复设计强度一定的情况下，可根据换算要求用胶量管道修复时，设计的复合材料强度一定的情况下，可根据换算给出用胶量范围，若无法达到则现场质量不过关。
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