CN112474143A - Production device and method for graphene heat transfer enhanced multilayer composite pipe - Google Patents
Production device and method for graphene heat transfer enhanced multilayer composite pipe Download PDFInfo
- Publication number
- CN112474143A CN112474143A CN202011208281.1A CN202011208281A CN112474143A CN 112474143 A CN112474143 A CN 112474143A CN 202011208281 A CN202011208281 A CN 202011208281A CN 112474143 A CN112474143 A CN 112474143A
- Authority
- CN
- China
- Prior art keywords
- pipe
- resin
- metal
- tube
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- 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
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
-
- 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
- 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
- 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
- B05D3/002—Pretreatement
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
-
- 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
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/30—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/32—Making multilayered or multicoloured articles
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
-
- 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
- B05D2518/00—Other type of polymers
-
- 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
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
Abstract
A device and a method for producing a graphene heat transfer enhanced multilayer composite pipe are disclosed, wherein an outer layer is a metal pipe, a middle layer is graphene/phenolic resin, and an inner layer is phenolic resin; the equipment consists 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 driving wheel, a heating and curing device, a driving belt, a moving motor, a moving guide rail, a resin pump, a composite resin pump and a transition supporting pipe. The multilayer composite pipe is of a three-layer structure, the outer layer is a metal pipe, the middle layer is phenolic resin added with graphene, and the inner layer is a phenolic resin layer. The equipment has the advantages of high production efficiency, compact composite layer, high bonding strength and the like.
Description
Technical Field
The invention relates to a forming device of a composite pipe, in particular to a device and a method for producing a graphene heat transfer enhanced multilayer 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-wear-resistance and 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 respectively and then subjected to cleaning and plastic processing, and the technical route is long, complex and high in cost.
The plastic-coated composite metal pipe is a green environment-friendly pipe material which is corrosion-resistant, erosion-resistant, nontoxic and radiationless and is applied to various fluid transportation. The metal/plastic composite pipe 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 such excellent performance that the plastic-coated composite metal pipe has very 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.
However, in some situations with severe abrasion and corrosion and in situations requiring heat exchange, the lining layer is made of resin, which has poor heat conduction, and the bimetal composite pipe has relatively poor corrosion resistance, so that the two composite pipes are not suitable for use under such conditions.
Disclosure of Invention
The invention provides a device and a method for producing a graphene heat transfer enhanced multilayer composite pipe aiming at the defects of a lining resin composite pipe and a bimetal composite pipe, wherein the multilayer composite pipe is of a three-layer structure, the outer layer is a metal pipe, the inner diameter of the metal pipe is not less than 25mm, the middle layer is phenolic resin added with graphene, the thickness of the phenolic resin layer is 0.1-1mm, the mass percentage of the graphene in the phenolic resin layer is 0.5-8% wt, the inner layer is phenolic resin, and the thickness of the resin layer is 0.05-0.2 mm.
The phenolic resin added with the graphene adopts the following addition mode: screening graphene by a screen and adding the graphene into the phenolic resin which is stirred strongly;
the graphene heat transfer enhanced multilayer composite pipe production equipment 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 driving wheel, a heating and curing device, a driving belt, a moving motor, a moving guide rail, a resin pump, a composite resin pump and a transition supporting pipe.
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 movement of the support is controlled by the linkage of the stroke controller and the delay controller, the metal tube is fixed on the metal tube rotating device and the metal tube support frame in the working state, the metal rotating device provides rotating power of the metal tube, 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 shaft is fixed on the support through the bearing, the metal tube clamping device is connected with the shaft through a mechanical connection mode, the rotating motor drives the shaft to rotate through a transmission mechanism, and the metal tube clamping device adopts a structural form of a rigid three-jaw or four-jaw chuck.
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 comprises a resin conveying pipe, a composite resin conveying pipe and a support ring, wherein at least one of the resin conveying pipe and the composite resin conveying pipe is in a metal pipe or metal pipe sleeved outside the metal pipe, one end of the hard pipe is connected with a pump, the other end of the hard pipe is connected with a corresponding nozzle, the resin conveying pipe and the composite resin conveying pipe penetrate through the support ring or are connected with the pipe through the support ring, the support ring is fixedly connected with the hard pipe and is embedded in a hard pipe support bearing, the number of the support rings is not less than 2, retaining rings are assembled on two sides of the hard pipe support bearing and are fixed on the support ring, a retaining ring main body is two annular thin sheets, the large circle radius of the annular thin sheets is larger than the inner diameter of the outer ring of the hard pipe support bearing, and the axial gap between the annular thin sheets and the outer ring of the hard pipe support bearing is 0.5, and a flexible seal is arranged in an axial gap between the annular sheet and the outer ring of the hard tube support bearing.
The number of the resin nozzles and the number of the composite resin nozzles are both more than 1; the nozzle is fixed on the hard pipe, the resin nozzle is arranged in front of the composite resin nozzle (as shown in figure 1), and the resin nozzle or the composite resin nozzle is staggered in angle and respectively and uniformly distributed on the same circumferential section;
further, a torsion-resistant reinforcing rod piece is arranged between the support rings;
furthermore, the retaining ring is of a circular ring structure, and the outer diameter of the retaining ring is not larger than the outer ring of the rigid pipe support bearing.
The transition support tube is characterized in that the transition support tube is made of metal, the inner diameter of the transition support tube is consistent with that of the metal tube to be sprayed, the transition support tube is fixed on the movable guide rail and does not participate in autorotation of the metal tube to be sprayed and axial movement of the hard tube, the coaxiality of the central axis of the metal tube to be sprayed and the central axis of the transition support tube is not more than IT12 grade, and a gap between the end faces of the two tubes is not more than 5 mm.
Furthermore, the steel wire brush is fixed on the outer ring of the rigid pipe support bearing, the steel wire brush is of a multi-section structure in the circumferential direction, the axial width of a steel wire of the steel wire brush is not less than 10mm, and the orientation of the steel wire is the outward radial direction of the outer ring of the rigid pipe support bearing.
The movable guide rail is 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 rotation axis of the metal pipe and the horizontal plane is 0-0.2rad, the length of the movable guide rail is not less than 2 times of the length of the metal pipe to be sprayed, the length of the movable guide rail located in the heating and curing device is not less than half of the length of the movable guide rail, 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 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 phenolic resin and the curing agent.
Furthermore, the temperature of each section of the heating and curing device is set to be 60-100 ℃ in the first section, 20-40 ℃ in the difference between the working temperatures of the connected sections and not higher than 250 ℃ in the highest working temperature section.
The operation and control system comprises a control unit, a display unit, a sensor unit and a signal transmission and conversion unit, and realizes the functions of linkage control, parameter adjustment and automatic control and parameter display.
Furthermore, the monitoring objects of the sensor unit comprise displacement of the hard tube, rotating speed of the metal tube, moving speed of the hard tube, temperature of each section of the curing and heating device, and working pressure of the composite resin pump and the resin pump;
further, the linkage control includes: the support displacement is linked with the start/stop of the composite resin pump and the resin pump, and the support displacement and delay controller is linked with the mobile motor and the rotating motor. The parameter display function comprises heating power and temperature of each section of heating and curing, rotating speed of a rotating motor, axial moving speed of a metal pipe, working pressure of a composite resin pump, working pressure of the resin pump and residual resin; the parameter regulation and control comprises the working pressure of the composite resin pump, the working pressure of the resin pump, the rotating speed of the rotating motor, the power and the working temperature of each section of the heating and curing device, the axial moving speed of the metal pipe and the time from the completion of spraying to the stop of rotation of the inner wall of the metal pipe.
Furthermore, the moving motor adopts a three-phase alternating current motor, and the reversing of the reciprocating movement of the moving motor is controlled by a circuit, namely the rotating direction of the motor is changed by changing the phase current sequence through the circuit.
The preparation process parameters of the composite tube are as follows: the autorotation speed of the metal pipe is 800 revolutions per minute during spraying, the axial moving speed of the metal pipe is 0.05-0.5 m/s, the viscosity of the phenolic resin at 25 ℃ after the curing agent is added is 0.05-0.10 Pa.s, the working pressure of the resin pump is 0.2-1.5MPa, and the working pressure of the composite resin pump is 0.3-2 MPa.
The curing process of the composite tube is divided into two stages, wherein the first stage is that the time from the beginning of spraying the metal tube to the stopping of rotation is 0.5-10 min, the heating temperature of the heating and curing device is 60-100 ℃, the second stage is that the metal tube stops rotating and is transferred to other stages of the heating and curing device, the working temperature of the heating and curing device is 100-250 ℃, and the heating time is 0.5-2 h.
Compared with conventional spraying and curing, the resin layer is more compact and high in bonding strength, and the prepared graphene heat transfer enhanced phenolic resin composite tube has the characteristics of high heat conduction, electric conduction and high corrosion resistance.
The invention has the advantages that:
1. the inner layer is thermosetting resin added with graphene, so that the corrosion resistance of the composite pipe is greatly enhanced compared with that of a bimetal composite pipe;
2. compared with a bimetal composite pipe, the production process and conditions are simpler, and the production efficiency is higher;
3. the steel wire brush can 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, and the bonding strength of the resin and the metal pipe is increased;
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 phenolic resin layer can be primarily cured during rotation 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 the curing effect of pressurizing and heating is formed, and the bonding strength between 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 nozzle adopts a symmetrical structure, and compared with the previous single nozzle, the adverse effect of the reaction force of resin injection on the stability of the nozzle is eliminated;
8. the graphene is added in a mode of sieving while stirring, so that the graphene has good dispersibility in the phenolic resin, and the problems of graphene agglomeration, large and uneven particle size and the like are avoided;
9. the nozzles are uniformly distributed with resin nozzles and composite resin nozzles which are staggered by an angle and are uniformly distributed, the mutual interference among the nozzles is reduced, the stability of the nozzles is greatly improved, and a transition support tube is additionally arranged at the tail end of a sprayed metal tube, so that 100 percent of the surface area of the sprayed metal tube hole can be ensured to be sprayed; the stability of the nozzle at the final stage of spraying is improved;
10. the invention has simple equipment, easy realization of automation and mechanization and high production efficiency.
Drawings
The invention will be further explained with reference to the drawings.
The principle of the device is shown in figure 1.
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 resin nozzle; (10) is a composite layer after spraying; (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) a resin pump; (18) is a composite resin pump, and (19) is a transition support tube.
Detailed Description
FIG. 1 is a schematic diagram of the device of the present invention, wherein (1) is an operation and control system, the control system adopts a PLC mode and is embedded with wifi; (2) the composite resin pipe is a hard pipe and is in a form that a metal pipe is sleeved outside the whole section of a resin conveying pipe and a composite resin conveying pipe; (3) the device is a 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; (4) the baffle ring is formed by splicing plastics, and a gap not less than 1mm is arranged between the baffle ring and the outer diameter of the hard tube; (5) a radial bearing is adopted for supporting the bearing for the hard tube; (6) the steel wire brush is fixed on the baffle ring in a gluing way; (7) 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 and adopts a rigid three-jaw chuck form; (8) is a composite resin nozzle; (9) is a resin nozzle; (10) is a composite layer after spraying; (11) is a metal tube; (12) adopts a synchronous belt pulley mode for a driving wheel; (13) is a heating and curing device; (14) is a transmission belt and adopts a synchronous belt form; (15) a three-phase alternating current motor is adopted for moving the motor; (16) the movable guide rail is made of cast iron; (17) is a resin pump; (18) is a composite resin pump; (19) the transition support tube is made of metal.
Claims (4)
1. A production device and a method for a graphene heat transfer enhanced multilayer composite pipe are disclosed, wherein production equipment comprises 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 driving wheel, a heating and curing device, a driving belt, a moving motor, a moving guide rail, a resin pump, a composite resin pump and a supporting transition pipe; the method is characterized in that:
the multilayer composite pipe is of a three-layer structure, the outer layer is a metal pipe, the inner diameter of the metal pipe is not less than 25mm, the middle layer is phenolic resin added with graphene, the thickness of the middle layer is 0.1-1mm, the mass percentage of the phenolic resin layer graphene is 0.5-8% wt, and the inner layer is phenolic resin and the thickness of the inner layer is 0.05-0.2 mm;
further, the graphene is added in a manner that the graphene is added into the resin which is strongly stirred through a screen separation manner;
the moving motor drives the metal tube rotating device and the support of the metal tube support frame to do reciprocating movement on the moving guide rail through the driving wheel and the driving belt, the movement of the support is controlled by adopting a stroke controller and a delay controller to link the moving motor, the metal tube is fixed on the metal tube rotating device and the metal tube support frame in a working state, the metal rotating device provides rotating power of the metal tube, the metal support frame can passively rotate, and the number of the metal tube support frames is not less than 1;
the hard pipe is a composite structure comprising a resin conveying pipe, a composite resin conveying pipe and a supporting ring, at least one of the resin conveying pipe and the composite resin conveying pipe is in the form of a metal pipe or an outer metal pipe, one end of the hard pipe is connected with a pump, the other end of the hard pipe is connected with a corresponding nozzle, the resin conveying pipe and the composite resin conveying pipe penetrate through the supporting ring or form connection between the pipes, the supporting ring is fixedly connected with the hard pipe, the supporting ring is embedded in a hard pipe supporting bearing, the number of the supporting rings is not less than 2, retaining rings are assembled on two sides of the hard pipe supporting bearing and fixed on the supporting ring, a main body of each retaining ring is two annular thin sheets, the large circular radius of each annular thin sheet is larger than the inner diameter of an outer ring of the hard pipe supporting bearing, and the axial gap between each annular thin sheet and the outer ring of the hard pipe, a flexible seal is arranged in an axial gap between the annular sheet and an outer ring of the hard tube support bearing;
the number of the resin nozzles and the number of the composite resin nozzles are both more than 1, the nozzles are fixed on the hard tube, and the resin nozzles or the composite resin nozzles are staggered by an angle and are respectively and uniformly distributed on the same circumferential section;
the transition support tube is made of metal, the inner diameter of the transition support tube is consistent with that of the sprayed metal tube, the transition support tube is fixed on the movable guide rail and does not participate in autorotation of the sprayed metal tube and axial movement of the hard tube, the coaxiality of the central axis of the sprayed metal tube and the central axis of the transition support tube is not more than IT12 level, and a gap between the end surfaces of the two tubes is not more than 5 mm;
the steel wire brush is fixed on the outer ring of the rigid pipe support bearing, the steel wire brush is of a multi-section structure in the circumferential direction, the width of a steel wire of the steel wire brush in the axial direction is not less than 10mm, and the orientation of the steel wire is the outward radial direction of the outer ring of the rigid pipe support bearing;
the movable guide rail is obliquely arranged, the end of the post-sprayed metal pipe is at a relatively lower position, the included angle between the rotation axis of the metal pipe and the horizontal plane is 0-0.2rad, the length of the movable guide rail is not less than 2 times of the length of the sprayed metal pipe, and the length of the movable guide rail in the heating and curing device is not less than half of the length of the movable guide rail;
the heating and curing device is of a sectional structure, the sections are separated by heat insulation cotton, the working temperature of the first section is 60-100 ℃, the difference of the working temperatures of the connected sections is 20-40 ℃, and the highest working temperature of the heating and curing device is not higher than 250 ℃.
2. The retainer ring of claim 1, wherein the retainer ring and the wire brush are independent structures or integrated structures, the retainer ring main body part is an annular thin sheet arranged on two side surfaces of a bearing rolling element, the gap between the annular thin sheet and the bearing end surface is not more than 1mm, and the radial gap between the annular thin sheet and the outer diameter of the hard tube is not more than 0.5 mm.
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 transmission and conversion unit, and realizes the functions of linkage control, parameter adjustment and automatic control, and parameter display;
furthermore, the monitoring objects of the sensor unit comprise displacement of the hard tube, rotating speed of the metal tube, moving speed of the hard tube, temperature of each section of the curing and heating device, and working pressure of the composite resin pump and the resin pump;
further, the linkage control includes: the support displacement is linked with the start/stop of the composite resin pump and the resin pump, and the support displacement and delay controller is linked with the mobile motor and the rotating motor;
further, the parameter display function comprises heating power and temperature of each section of heating and curing, rotating speed of a rotating motor, axial moving speed of a metal pipe, working pressure of a composite resin pump, working pressure of the resin pump and residual amount of resin; the parameter regulation and control comprises the working pressure of the composite resin pump, the working pressure of the resin pump, the rotating speed of the rotating motor, the power and the working temperature of each section of the heating and curing device, the axial moving speed of the metal pipe and the time from the completion of spraying to the stop of rotation of the inner wall of the metal pipe.
4. The method for producing a multilayer composite pipe according to claim 1, wherein the autorotation speed of the metal pipe is 100-800 rpm, the axial moving speed of the metal pipe is 0.05-0.5 m/s, the viscosity of the phenolic resin at 25 ℃ after the curing agent is added is 0.05-0.10 Pa s, the working pressure of the resin pump is 0.2-1.5MPa, and the working pressure of the composite resin pump is 0.3-2MPa when the composite resin and the resin are sprayed;
the curing process of the composite tube is divided into two stages, wherein the first stage is that the time from the beginning of spraying the metal tube to the stopping of rotation is 0.5-10 min, the working temperature of heating and curing is 60-100 ℃, the second stage is that the metal tube stops rotating and is transferred to other stages of a heating and curing device, the working temperature of the heating and curing device is 100-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011208281.1A CN112474143A (en) | 2020-11-03 | 2020-11-03 | Production device and method for graphene heat transfer enhanced multilayer composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011208281.1A CN112474143A (en) | 2020-11-03 | 2020-11-03 | Production device and method for graphene heat transfer enhanced multilayer composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112474143A true CN112474143A (en) | 2021-03-12 |
Family
ID=74927658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011208281.1A Withdrawn CN112474143A (en) | 2020-11-03 | 2020-11-03 | Production device and method for graphene heat transfer enhanced multilayer composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112474143A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203470243U (en) * | 2013-09-27 | 2014-03-12 | 京东方科技集团股份有限公司 | Liquid spraying device |
| CN105482648A (en) * | 2015-12-23 | 2016-04-13 | 铜陵市肆得科技有限责任公司 | Anticorrosive and antirust powder coating for pipeline |
| CN105623469A (en) * | 2016-01-20 | 2016-06-01 | 田路兵 | Graphene polymer energy-saving environment-friendly composite coating as well as preparation technology and application thereof |
| CN205928197U (en) * | 2016-08-10 | 2017-02-08 | 中国石油天然气股份有限公司 | Rust -removing device for oil pipe inner wall |
| KR20170026779A (en) * | 2015-08-27 | 2017-03-09 | (주)에스시아이 | Pipe interior coating device |
| CN108276866A (en) * | 2018-01-16 | 2018-07-13 | 湖南国盛石墨科技有限公司 | A kind of metal material graphene fire-resistant anticorrosion paint 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 |
-
2020
- 2020-11-03 CN CN202011208281.1A patent/CN112474143A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203470243U (en) * | 2013-09-27 | 2014-03-12 | 京东方科技集团股份有限公司 | Liquid spraying device |
| KR20170026779A (en) * | 2015-08-27 | 2017-03-09 | (주)에스시아이 | Pipe interior coating device |
| CN105482648A (en) * | 2015-12-23 | 2016-04-13 | 铜陵市肆得科技有限责任公司 | Anticorrosive and antirust powder coating for pipeline |
| CN105623469A (en) * | 2016-01-20 | 2016-06-01 | 田路兵 | Graphene polymer energy-saving environment-friendly composite coating as well as preparation technology and application thereof |
| CN205928197U (en) * | 2016-08-10 | 2017-02-08 | 中国石油天然气股份有限公司 | Rust -removing device for oil pipe inner wall |
| CN108276866A (en) * | 2018-01-16 | 2018-07-13 | 湖南国盛石墨科技有限公司 | A kind of metal material graphene fire-resistant anticorrosion paint 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7412788B2 (en) | Material flow amplifier and elbow flow amplifier | |
| CN101169215B (en) | Nano coating protective pipe and its coating manufacture process | |
| CN101592265A (en) | Bimetal wear resistant composite tube | |
| CN112138969A (en) | Production equipment and method for graphene heat transfer enhanced phenolic resin composite pipe | |
| CN110182864A (en) | A kind of anti-freeze type sewage treatment conveying device of easy to maintain | |
| CN104070672A (en) | Process for production of a pipe lined with an inliner | |
| CN207777283U (en) | A kind of two-way cooling down water pump | |
| CN105013921A (en) | Magnetic pulse forming method for lining bimetal composite pipe | |
| CN112474143A (en) | Production device and method for graphene heat transfer enhanced multilayer composite pipe | |
| CN112138914A (en) | Production equipment and method for graphene heat transfer enhanced multilayer composite pipe | |
| CN109882075B (en) | Reaming device and multifunctional drilling equipment for drilling and reaming | |
| CN112356360A (en) | Production equipment and method for graphene heat transfer enhanced phenolic resin composite pipe | |
| CN103009530B (en) | A kind of polyurethane composite steel pipe centrifugal casting equipment | |
| CN105927822A (en) | Corrosion-resistance composite pipe and manufacturing method thereof | |
| CN112024243A (en) | Graphene/organic silicon resin multilayer composite pipe preparation device and technology | |
| CN112547373A (en) | Heat transfer enhanced multilayer composite pipe production equipment and process | |
| CN112044646A (en) | Preparation device and process of graphene heat transfer enhanced epoxy resin composite tube | |
| CN112427198A (en) | Compound pipe apparatus for producing of graphite alkene/organic silicon resin multilayer | |
| CN112024242A (en) | Preparation device and process of graphene heat transfer enhanced organic silicon resin composite tube | |
| CN101270837A (en) | Non-welding flange-connection stainless steel metal flexible pipe and production method | |
| CN203702013U (en) | Abrasion-resistant antiseptic composite sucker rod | |
| CN111287990B (en) | Gas compressor | |
| CN208074296U (en) | A kind of flaring lining stainless steel anti-corrosion drag-reducing abrasion-resisting composite steel tube pipeline | |
| CN206846186U (en) | A kind of single layer abrasion-resistant straight tube that can be eliminated welding and influence | |
| CN202830149U (en) | Conveying device used for oil pipe continuous thermal spraying |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |
|
| WW01 | Invention patent application withdrawn after publication |