CN112024242A - Preparation device and process of graphene heat transfer enhanced organic silicon resin composite tube - Google Patents
Preparation device and process of graphene heat transfer enhanced organic silicon resin composite tube Download PDFInfo
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- CN112024242A CN112024242A CN202010900945.4A CN202010900945A CN112024242A CN 112024242 A CN112024242 A CN 112024242A CN 202010900945 A CN202010900945 A CN 202010900945A CN 112024242 A CN112024242 A CN 112024242A
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- metal
- metal tube
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 27
- 239000010703 silicon Substances 0.000 title claims abstract description 27
- 239000000805 composite resin Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title abstract description 6
- 230000008569 process Effects 0.000 title abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 90
- 229910052751 metal Inorganic materials 0.000 claims abstract description 90
- 239000011347 resin Substances 0.000 claims abstract description 54
- 229920005989 resin Polymers 0.000 claims abstract description 54
- 239000002131 composite material Substances 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims 1
- 229920002050 silicone resin Polymers 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0645—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation
- B05B13/0663—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation and the hollow bodies being translated in a direction parallel to the rotational axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
- B05D7/225—Coating inside the pipe
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
A preparation device and a preparation process of a graphene heat transfer enhanced organic silicon resin composite tube are disclosed, wherein an outer layer of the composite tube is a metal tube, and an inner layer is organic silicon resin added with graphene; the process principle is that in a metal pipe which rotates at a high speed and can move axially, a relatively static resin conveying pipe and a nozzle are arranged in the metal pipe by adopting a bearing and a steel wire brush, the resin conveying pipe and the nozzle do not participate in the rotation and the axial movement of the metal pipe, organic silicon resin added with graphene is sprayed on the inner surface of the metal pipe from the nozzle through a resin pump and the resin conveying pipe, the sprayed metal pipe gradually enters a heating curing device for heating and primary curing, after the resin loses fluidity, a time delay controller and a stroke controller are linked with a motor to stop the rotation of the metal pipe, the metal pipe enters other sections of a curing area, and the metal pipe is continuously cured to form the composite pipe.
Description
Technical Field
The invention relates to a forming device and a forming process of a metal/polymer composite pipe, in particular to a device and a process for preparing a graphene heat transfer enhanced organic silicon resin composite pipe.
Background
The composite pipe has outer layer and inner lining layer of different material, the outer layer pipe is responsible for bearing and rigid support, and the inner lining layer is anticorrosive, wear resistant and other functions. The outer layer pipe can be according to the flow and the pressure requirement of carrying the medium, chooses the metal tubular product of different latus rectum and wall thickness for use, for example: hot dip galvanized steel pipe, straight welded pipe, spiral pipe, seamless steel pipe for low and medium pressure fluid conveyance, seamless steel pipe for high pressure boiler and oil cracking, line pipe, and the like. According to the chemical composition of the conveying medium, the lining layer is made of different corrosion-resistant alloys or other materials. The lining material mainly comprises novel high-corrosion-resistance alloys such as stainless steel, copper-based alloy, nickel-based alloy, titanium alloy, duplex stainless steel and the like. However, the bimetal composite pipe is generally formed by respective forming and then cleaning and compounding, and the technical route is long and complicated and the cost is high.
The plastic-coated composite metal pipe is a green environment-friendly pipe material with corrosion resistance, erosion resistance, no toxicity and no radiation, and is applied to various fluid transportation. The metal/plastic composite pipe also has the function of oxygen resistance, can be directly used for direct drinking water engineering, and has excellent corrosion resistance because the inner layer and the outer layer are made of plastic materials. The plastic-coated composite metal pipe has the excellent performance, has wide application, and can be seen in various fields such as petroleum and natural gas transportation, industrial and mining pipes, drinking water pipes, drainage pipes and the like. Epoxy resins and polyethylene have good corrosion resistance, but their thermal and electrical properties are poor, which greatly limits the application of such coated composite pipes.
In some occasions with serious corrosion and occasions requiring heat exchange or preventing liquid from generating static electricity, the inner liner layer has poor heat conduction due to resin, and the bimetal composite pipe has poor corrosion resistance, so that the two composite pipes are not suitable for the working conditions. Aiming at the defects, the graphene heat transfer enhanced organic silicon resin composite tube has polymer corrosion resistance, and the heat and electrical properties of the composite tube are greatly improved.
Disclosure of Invention
The invention provides a production device and a production process of a graphene heat transfer enhanced organic silicon resin composite tube, wherein the outer layer of the composite tube is a metal tube, and the inner diameter of the metal tube is not less than 25 mm; the inner layer is organic silicon resin added with graphene, the thickness of the organic silicon resin layer is 0.1-1 mm, and the mass percentage of the organic silicon resin layer graphene is 0.5-8% wt.
The technological principle of the graphene heat transfer enhanced organic silicon resin composite tube is that in a metal tube which rotates at a high speed and can move axially, a relatively static resin conveying pipe and a relatively static nozzle are arranged in the metal tube in a bearing and a steel wire brush, the resin conveying pipe and the relatively static nozzle do not participate in the rotation and the axial movement of the metal tube, organic silicon resin added with graphene is sprayed on the inner surface of the metal tube from the nozzle through a resin pump and the resin conveying pipe, the sprayed metal tube gradually enters a heating curing device for heating and primary curing, after the resin loses flowability, a time delay controller and a stroke controller are linked with a motor to stop the rotation of the metal tube, the metal tube enters other sections of a curing area, and the curing is continued to prepare the composite tube.
The production device of the graphene heat transfer enhanced organic silicon resin composite pipe comprises an operation and control system, a hard pipe, a metal pipe rotating device, a retaining ring, a hard pipe supporting bearing, a steel wire brush, a metal pipe supporting frame, a composite resin nozzle, a compressed gas nozzle, a driving wheel, a heating and curing device, a driving belt, a moving motor, a moving guide rail, a resin pump and a compressed gas source.
The movable motor drives the metal tube rotating device and the support of the metal tube support frame to do reciprocating movement on the movable guide rail through the driving wheel and the driving belt, the support movement is controlled by the linkage of the stroke controller and the delay controller, the metal tube is fixed on the metal rotating device and the metal tube support frame at the same time in the working state, the metal rotating device provides metal tube rotating power, the metal support frame can rotate passively, and the number of the metal tube support frames is not less than 1.
The metal tube rotating device is a combined mechanism and comprises a rotating motor, a bearing, a shaft, a metal tube clamping device and a support, wherein the rotating motor is fixed on the support, the rotating motor drives the shaft to rotate through a transmission mechanism, the shaft is fixed on the support through the bearing, the metal tube clamping device is connected with the shaft through a mechanical connection mode, and the metal tube clamping device is in a rigid three-jaw or four-jaw chuck mode.
The metal tube support frame comprises a support, a bearing and a metal tube fixing device, wherein the metal tube fixing device is fixed on the support through the bearing, the metal tube fixing device adopts a structural form of a rigid three-jaw or four-jaw chuck, and the contact part of the metal tube fixing device and the fixed metal tube is coated by flexible materials such as rubber, felt and the like.
The hard pipe is a composite structure consisting of a plurality of sections of resin conveying pipes, a compressed gas conveying pipe and a support ring, the resin conveying pipe adopts a metal pipe or a high-pressure rubber pipe, the compressed gas conveying pipe adopts a rubber pipe form, one end of the hard pipe is connected with a pump and a gas source, the other end of the hard pipe is connected with a nozzle, the hard pipe is connected with the nozzle through the support ring, the support ring is made of metal materials and is of a round table structure, 2 axial channels (mixed resin and compressed gas circulation channels) are arranged on the round table, the hard pipe is connected with the support ring through a pipe joint form, the nozzle is connected with the support ring through welding or a thread connection mode, the outer diameter of the support ring is in interference fit with the inner diameter of the hard pipe support bearing, the two ends of the bearing are provided with baffle rings which are fixed on the support ring, the main body of the baffle rings is two annular sheets, the axial clearance between the annular sheet and the outer ring of the hard tube support bearing is 0.5-2mm, and a flexible seal is arranged in the axial clearance between the annular sheet and the outer ring of the bearing.
Further, a torsion-resistant reinforcing rod piece is arranged between the support rings;
further, the steel wire brush is fixed on the outer ring of the hard tube supporting bearing, and the steel wire faces to the outward radial direction of the outer ring of the hard tube supporting bearing.
The movable guide rails are arranged in an inclined mode, the end of the metal pipe subjected to post-spraying is located at a relatively lower position, the included angle between the axis of the metal pipe and the horizontal plane is 0-0.5rad, the length of the movable guide rails is not less than 2 times of the length of the metal pipe to be sprayed, the length of the movable guide rails in the heating and curing device is not less than half of the length of the movable guide rails, and the metal pipe subjected to spraying can be completely located in the heating and curing device.
The heating and curing device is of a sectional type structure, the sections are separated by heat insulation cotton, and the heating temperature of each section of the heating and curing device is respectively set according to the different types of the organic silicon resin and the curing agent.
Further, the working temperature of the first section of the heating and curing device is 70-100 ℃, the difference of the working temperatures of the connected sections is 20-40 ℃, and the highest working temperature is not higher than 300 ℃.
The operation and control system comprises a control unit, a display unit, a sensor unit and a signal conversion and connection unit, and realizes the functions of linkage control, parameter adjustment and automatic control and parameter display.
Further, the linkage control includes: the support displacement is linked with the start/stop of the resin pump, and the support displacement and delay controller is linked with the moving motor and the rotating motor. The parameter display function comprises heating power and temperature of each heating and curing section, rotating speed of a rotating motor, moving speed of a support, support displacement, working pressure of a resin pump and residual amount of resin; the parameter regulation and control comprises the pressure of the resin pump, the rotating speed of the rotating motor, the power and the set temperature of each section of heating and curing, the moving speed of the support and the time delay from the completion of the spraying of the inner wall of the metal pipe to the stop of the rotation.
Further, the moving motor adopts a three-phase alternating current motor, and the reversing of the reciprocating movement of the support is realized by changing the sequence of phase currents and changing the rotating direction of the motor through a circuit.
The organic silicon resin added with the graphene adopts a mode of adopting vibration screening of the graphene, so that the graphene automatically falls into the mixed resin container from a screen.
The preparation process parameters of the composite tube are as follows: when the composite resin is sprayed, the autorotation speed of the metal tube is 50-500 r/min, the axial moving speed of the metal tube is 0.05-1m/s, the viscosity of the organic silicon resin at 25 ℃ after the curing agent is added is 0.01-0.10 Pa.s, and the continuous rotating time of the metal tube after the spraying is finished is 0.5-4 min; the working pressure of the resin pump is 0.3-2MPa, and the working temperature of the heating curing device is 70-300 ℃.
The invention has the advantages that:
compared with conventional spraying and curing, the resin layer is more compact and high in bonding strength, and the prepared graphene heat transfer enhanced organic silicon resin composite tube has the characteristics of high heat conduction, electric conduction and high corrosion resistance. The method is characterized by comprising the following steps:
1. the inner layer is organic silicon resin added with graphene, so that the corrosion resistance of the composite pipe is greatly enhanced compared with that of a bimetallic composite pipe;
2. compared with the preparation of the bimetal composite pipe, the production process and conditions are simpler, and the production efficiency is higher;
3. the steel wire brush can synchronously polish the inner wall of the metal pipe, so that the cleanliness and the roughness of the inner wall of the metal pipe are improved, the process is simplified, and a composite interface is cleaner, so that the bonding strength of resin and the metal pipe is improved;
4. compared with a metal composite pipe with plastic interior, the graphene is added into the resin layer, so that the heat conducting capacity of the resin layer is greatly improved, and the graphene has electric conductivity, so that the composite pipe can be used for conveying pipelines which are seriously corroded, have strong heat conduction and need to prevent static electricity from being generated by flowing media;
5. the resin layer can rotate and simultaneously preliminarily complete curing of the organic silicon resin by adjusting the heating temperature, the curing agent and the like due to the centrifugal force generated by the rotation of the metal pipe, so that a pressurizing and heating curing effect is formed, and the bonding strength between the compactness of the resin layer and the metal pipe is high;
6. the metal pipe is obliquely arranged, so that waste generated by scraping of the steel wire brush can be conveniently swept out of the pipe;
7. the organic silicon resin has good electrical property and thermal stability, so that the composite tube integrates the advantages of a metal tube, graphene and organic silicon resin, and has the advantages of high strength, corrosion resistance, good electric and thermal conductivity and the like;
8. by adopting a vibration screening mode, the adding speed of the graphene can be well controlled, and the agglomeration of the graphene can be effectively avoided;
9. the device is simple in equipment, easy to realize automation and mechanization, high in production efficiency, and similarly suitable for production of the organic silicon resin layer composite tube without the added graphene.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic diagram of the apparatus of the present invention, wherein (1) is an operation and control system; (2) is a hard tube; (3) a metal pipe rotating device; (4) is a baffle ring; (5) supporting the bearing for the rigid tube; (6) is a wire brush; (7) is a metal tube support frame; (8) is a composite resin nozzle; (9) is a compressed gas nozzle; (10) the sprayed composite resin layer; (11) is a metal tube; (12) a chain wheel or belt wheel mode is adopted for a driving wheel; (13) is a heating and curing device; (14) the transmission belt is a chain or a belt; (15) a three-phase alternating current motor is adopted for moving the motor; (16) the movable guide rail is made of metal materials; (17) is a resin pump; (18) in order to compress the air source, a compressor mode is adopted.
Detailed Description
FIG. 1 is a schematic diagram of the apparatus of the present invention, wherein (1) is an operation and control system, and the control system adopts a PLC mode; (2) the composite material is a hard pipe, the mixed resin adopts a metal pipe, and the compressed gas adopts a rubber pipe; (3) a metal pipe rotating device; (4) the baffle ring is made of metal; (5) supporting the bearing for the rigid tube; (6) is a wire brush; (7) is a metal tube support frame; (8) is a composite resin nozzle; (9) is a compressed gas nozzle; (10) the sprayed composite resin layer; (11) is a metal tube; (12) adopts a synchronous belt pulley mode for a driving wheel; (13) is a heating and curing device; (14) a synchronous belt is adopted as a transmission belt; (15) a three-phase alternating current motor is adopted for moving the motor; (16) the movable guide rail is made of metal; (17) a gear pump is adopted as a resin pump; (18) the compressed air source is in the form of a compressor.
Claims (5)
1. A preparation device and a preparation process of a graphene heat transfer enhanced organic silicon resin composite pipe are disclosed, wherein the device is composed of an operation and control system, a hard pipe, a metal pipe rotating device, a baffle ring, a hard pipe supporting bearing, a steel wire brush, a metal pipe supporting frame, a composite resin nozzle, a compressed gas nozzle, a driving wheel, a heating and curing device, a driving belt, a moving motor, a moving guide rail, a resin pump and a compressed gas source; the composite pipe is characterized in that the outer layer of the composite pipe is a metal pipe, and the inner diameter of the metal pipe is not less than 25 mm; the inner layer is organic silicon resin added with graphene, the thickness of the organic silicon resin layer is 0.1-1 mm, and the mass percent of the organic silicon resin layer graphene is 0.5-8% wt;
the metal tube rotating device is a combined mechanism and comprises a rotating motor, a bearing, a shaft, a metal tube clamping device and a support, wherein the rotating motor is fixed on the support, the rotating motor drives the shaft to rotate through a transmission mechanism, the shaft is fixed on the support through the bearing, the metal tube clamping device is connected with the shaft in a mechanical connection mode, and the metal tube clamping device is in a rigid three-jaw or four-jaw chuck mode;
the metal tube support frame comprises a support, a bearing and a metal tube fixing device, the metal tube fixing device is fixed on the support through the bearing, the metal tube fixing device adopts a structural form of a rigid three-jaw or four-jaw chuck, and the contact part of the metal tube fixing device and the fixed metal tube is coated by a flexible material;
the hard pipe is a composite structure consisting of a resin conveying pipe, a compressed gas conveying pipe and a support ring, the support ring is of a round table structure made of metal materials, 2 axial through holes are formed in the round table, the hard pipe is connected with the support ring in a pipe joint mode, a nozzle is connected with the support ring in a welding or threaded connection mode, the outer diameter of the support ring is in interference fit with the inner diameter of a hard pipe support bearing, retaining rings are assembled at two ends of the bearing and fixed on the support ring, a retaining ring main body is composed of two annular thin sheets, the large circular radius of each thin sheet is larger than the inner diameter of the outer ring of the hard pipe support bearing, the axial gap between each annular thin sheet and the outer ring of the hard pipe support bearing is 0.5-2mm, and a flexible seal strip is arranged in the axial gap;
the steel wire brush is fixed on the outer ring of the rigid pipe support bearing, and the orientation of the steel wire is the outward radial direction of the outer ring of the rigid pipe support bearing;
an anti-torsion reinforcing rod piece is arranged between the support rings;
the movable guide rails are arranged in an inclined mode, the end of the metal pipe sprayed backwards is located at a relatively lower position, the included angle between the axis of the metal pipe and the horizontal plane is 0-0.5rad, the length of the movable guide rails is not less than 2 times of the length of the metal pipe to be sprayed, and the length of the movable guide rails in the heating and curing device is not less than half of the length of the movable guide rails.
2. The heating and curing device of claim 1, wherein the device is a segmented structure, and the segments are separated from one another by insulating cotton;
further, the working temperature of the first section of the heating and curing device is 70-100 ℃, the difference of the working temperatures of the connected sections is 20-40 ℃, and the maximum working temperature of the heating and curing device is not higher than 300 ℃.
3. The operation and control system according to claim 1, wherein the system comprises a control unit, a display unit, a sensor unit and a signal conversion and connection unit, and realizes the functions of linkage control, parameter adjustment and automatic control, and parameter display;
further, the linkage control includes: the support displacement and delay controller controls the moving motor and the rotating motor in a linkage manner;
further, the parameter display function comprises heating power and temperature of each section of heating and curing, rotating speed of a rotating motor, moving speed of a support, support displacement, working pressure of a resin pump and residual amount of resin; the parameter regulation and control comprises the pressure of the resin pump, the rotating speed of the rotating motor, the power and the set temperature of each section of heating and curing, the moving speed of the support and the time delay from the completion of the spraying of the inner wall of the metal pipe to the stop of the rotation.
4. The graphene according to claim 1, wherein the graphene is added in a form of vibrating and sieving graphene, and the graphene is allowed to fall from a sieve into a resin container which is continuously stirred.
5. The process for preparing the composite tube according to claim 1, wherein the autorotation speed of the metal tube is 50-500 rpm, the axial moving speed of the metal tube is 0.05-1m/s, the viscosity of the silicone resin at 25 ℃ after the curing agent is added is 0.01-0.10 Pa.s, and the continuous rotation time of the metal tube is 0.5-4min after the spraying is finished; the working pressure of the resin pump is 0.3-2MPa, and the working temperature of the heating curing device is 70-300 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900945.4A CN112024242A (en) | 2020-09-01 | 2020-09-01 | Preparation device and process of graphene heat transfer enhanced organic silicon resin composite tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010900945.4A CN112024242A (en) | 2020-09-01 | 2020-09-01 | Preparation device and process of graphene heat transfer enhanced organic silicon resin composite tube |
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| HUP0501202A2 (en) * | 2005-12-23 | 2007-12-28 | Istvan Arato | Method and apparatus for production of plastic inside-coating on concrete- or ferroconcrete bodies and tubes |
| CN106808352A (en) * | 2016-12-30 | 2017-06-09 | 重庆腾通工业设计有限公司 | Inner-walls of duct eliminates rust and spray-painting plant |
| CN109796794A (en) * | 2019-01-24 | 2019-05-24 | 江苏金陵特种涂料有限公司 | Organic-inorganic fire-resistant anticorrosion paint based on graphene and preparation method thereof |
| CN209577124U (en) * | 2018-12-01 | 2019-11-05 | 漳浦县恒德石墨烯应用科技有限公司 | A kind of spray equipment for graphene coating |
| CN111482346A (en) * | 2020-03-31 | 2020-08-04 | 北京博研中能科技有限公司 | Pipeline inner wall spraying method based on reinforced primer coating |
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2020
- 2020-09-01 CN CN202010900945.4A patent/CN112024242A/en active Pending
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| HUP0501202A2 (en) * | 2005-12-23 | 2007-12-28 | Istvan Arato | Method and apparatus for production of plastic inside-coating on concrete- or ferroconcrete bodies and tubes |
| CN106808352A (en) * | 2016-12-30 | 2017-06-09 | 重庆腾通工业设计有限公司 | Inner-walls of duct eliminates rust and spray-painting plant |
| CN209577124U (en) * | 2018-12-01 | 2019-11-05 | 漳浦县恒德石墨烯应用科技有限公司 | A kind of spray equipment for graphene coating |
| CN109796794A (en) * | 2019-01-24 | 2019-05-24 | 江苏金陵特种涂料有限公司 | Organic-inorganic fire-resistant anticorrosion paint based on graphene and preparation method thereof |
| CN111482346A (en) * | 2020-03-31 | 2020-08-04 | 北京博研中能科技有限公司 | Pipeline inner wall spraying method based on reinforced primer coating |
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