CN111744737A - Apparatus for heating a pipeline - Google Patents
Apparatus for heating a pipeline Download PDFInfo
- Publication number
- CN111744737A CN111744737A CN201910232281.6A CN201910232281A CN111744737A CN 111744737 A CN111744737 A CN 111744737A CN 201910232281 A CN201910232281 A CN 201910232281A CN 111744737 A CN111744737 A CN 111744737A
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- heating
- wheels
- pipe
- wheel
- wheel set
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 100
- 230000005674 electromagnetic induction Effects 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000002184 metal Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000001723 curing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The present invention provides an apparatus for heating a pipe, the apparatus comprising heating means for providing a heating zone and conveying means for driving the pipe through the heating zone, the conveying means comprising a first wheel set and a second wheel set for supporting the pipe, the first wheel set being configured to drive the pipe in rotation, at least one of the first wheel set and the second wheel set being configured to drive the pipe in movement through the heating zone. The equipment for heating the pipeline provided by the invention can reduce the production cost of pipeline heating and improve the production efficiency.
Description
Technical Field
The present invention relates to an apparatus for heating a pipeline.
Background
At present, the conventional metal pipe coating, heating and curing process uses a box type curing oven (resistance type, gas type) for heating. And (3) placing the coated metal pipeline on a flat car matched with the box type curing furnace to push the metal pipeline into the furnace, closing a furnace door, and then heating to the temperature required by the process for heat preservation. The heat energy generated by the current flowing through the resistor or the heat energy generated by the combustion of the fuel gas is transferred to the metal pipe body through the air heating in the closed furnace. However, the air has poor heat energy transfer efficiency, and the air heat conduction index is only about 0.3. It is thus possible to obtain a metal pipe whose efficiency does not exceed 30% even when the entire volume of the metal pipe is close to the volume of the box-type curing furnace (the efficiency of air heat transfer is low). Because the size of the metal pipes is large or small, the volume of the curing oven can only be increased to accommodate all the metal pipes with different sizes. When the whole volume of the metal pipeline is smaller than the volume of the box-type curing furnace, the air heat transfer efficiency is poorer, and the energy consumption is higher.
After the conventional metal pipeline coating, heating and curing process is completed, a furnace door must be opened to take the pipeline with the cured coating. Because the oven door is opened, the hot air inside the curing oven and the cold air outside the curing oven are alternated, and the heat loss is large. When the continuous operation is carried out, the next furnace is heated again to the set temperature, and the pipeline can be subjected to the curing process. Moreover, the temperature in the curing oven cannot be accurately controlled by opening the curing oven back and forth. This not only consumes more energy, but also takes longer, typically 40-60 minutes or longer, which affects the efficiency of production.
In view of the shortcomings of the box curing oven heating methods, those skilled in the art have developed some more convenient heating devices. For example, chinese patent application No. 201521045429.9 discloses a plastic-coated pipe intermediate frequency heating apparatus, wherein a pipe is fixed to a frame and rotated so that an intermediate frequency heater moves along the axis of the pipe to heat the pipe. Although this heating method is more convenient than the box type curing oven, there still exist many problems such as inconvenient pipe replacement, low production efficiency, etc.
In addition, in many applications where metal pipes are heated by plating, it is necessary to rotate the pipe while heating the pipe. For example, the present inventors have been working on a method of lining a metal pipe with an anticorrosive inorganic material, and found that, in lining the anticorrosive inorganic material, rotating the pipe at a high speed is very helpful in bonding the anticorrosive inorganic material to the inner wall of the metal pipe. Therefore, it is necessary to develop a lower cost and more efficient method for heating the pipeline.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the present invention provides a new heating device, and aims to solve the technical problems of reducing the production cost and improving the production efficiency.
In order to solve the problems, the invention adopts the technical scheme that: an apparatus for heating a pipe, the apparatus comprising heating means for providing a heating zone and conveying means for driving the pipe through the heating zone, the conveying means comprising a first set of wheels for supporting the pipe, the first set of wheels being configured to drive the pipe in rotation, and a second set of wheels configured to drive the pipe in movement through the heating zone.
Preferably, the heating device is a medium-frequency electromagnetic induction heater, and the heating zone is located in a heating coil of the medium-frequency electromagnetic induction heater.
Preferably, the conveyor further comprises a first wheelset axle, the first wheelset comprising a plurality of first wheels mounted to the first wheelset axle, the conveyor being configured to: the rotation of the first wheel set shaft can drive the plurality of first wheels to rotate, so that the pipeline is driven to rotate.
Preferably, the second wheel set comprises a plurality of second wheels configured to: rotation of the second wheel can generate a force that urges movement of the tube, thereby driving the tube to move through the heating zone.
Preferably the axis of rotation of the plurality of second wheels is offset from the axis of the conduit such that rotation of the second wheels generates a force that urges the conduit to move.
Preferably, the axes of rotation of the plurality of second wheels are offset from the axial direction of the duct in a horizontal direction.
Preferably, the conveying apparatus further includes a plurality of second wheel holders on which the plurality of second wheels are respectively mounted, the plurality of second wheel holders being configured to have a plurality of rotational positions in a horizontal direction.
Preferably, the conveying device further comprises a control part for adjusting the rotational position of the plurality of second wheel carriers.
Preferably, the control part and the plurality of second wheel brackets and/or the plurality of second wheels are connected by a plurality of connecting rods respectively, so that different positions of the control part can adjust the rotation positions of the plurality of second wheel brackets.
Preferably, the control part is hinged to the plurality of links, respectively.
Preferably, the apparatus for heating a pipe further comprises a stabilizing device configured to stabilize the pipe during rotation and movement of the pipe.
Preferably, the stabilizing means comprises a third set of wheels or ballast, the third set being configured for exerting pressure on the upper surface of the pipe, thereby effecting stabilization of the pipe during rotation and movement of the pipe.
The invention has the beneficial effects that: the equipment for heating the pipeline provided by the invention can not only heat the pipeline, but also drive the pipeline to rotate while heating. In addition, the whole device is simple in structure, energy consumption required by heating is low, continuous heating operation can be performed, production cost is reduced, and production efficiency is improved.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural view of a first preferred embodiment of the apparatus for heating a pipe according to the present invention (the pipe is in a first position).
Fig. 2 is a schematic structural view of a first preferred embodiment of the apparatus for heating a pipe according to the present invention (the pipe is in a second position).
Fig. 3 is a schematic structural view of a first preferred embodiment of the apparatus for heating a pipe according to the present invention (the pipe is in a third position).
Fig. 4 is a schematic structural diagram of a conveying device of a first preferred embodiment of the apparatus for heating a pipeline provided by the present invention.
Fig. 5 is another schematic structural view of the conveyor of the first preferred embodiment of the apparatus for heating a pipeline provided by the present invention (with the second wheel in one of the rotational positions).
Fig. 6 is a schematic view of another structure of the conveyor of the first preferred embodiment of the apparatus for heating a pipeline according to the present invention (the second wheel is in another rotational position).
Fig. 7 is a schematic structural view of a second preferred embodiment of the apparatus for heating a pipe according to the present invention (the pipe is in a first position).
Fig. 8 is a schematic structural view of a second preferred embodiment of the apparatus for heating a pipe according to the present invention (the pipe is in a second position).
Fig. 9 is a schematic structural view of a second preferred embodiment of the apparatus for heating a pipe according to the present invention (the pipe is in a third position).
Detailed Description
Fig. 1 to 6 show a first preferred embodiment of the apparatus for heating a pipeline provided by the present invention.
As shown in fig. 1 to 3, the apparatus for heating a pipeline in this embodiment includes a heating device 200 and a transporting device 300, and the heated pipeline 100 is located on the transporting device 300. The heating device 200 functions to provide a heating zone and the transport device functions to drive the conduit 100 through the heating zone. In this embodiment, the heating device 200 is a medium frequency electromagnetic induction heater (not shown), the heating area is a medium frequency heating coil, and the whole section of the pipeline 100 passes through the inside of the medium frequency heating coil.
Fig. 1-3 illustrate different positions of the conduit 100 during heating, respectively. In fig. 1, the conduit 100 is in a first position, not entering the heating zone; in fig. 2, the conduit 100 is in a second position with a portion thereof in the heating zone; in fig. 3, the conduit 100 is in a third position, away from the heating zone. Under the action of the conveying device 300, the pipe 100 moves along the axial direction thereof, and the whole part passes through the heating zones in sequence, thereby completing the heating of the whole pipe.
As shown in fig. 4, the conveying device 300 includes a first wheel set 310, a first wheel set shaft 311, a second wheel set 320, a support wheel set 330, and a base 340. Wherein the first wheel set 310 comprises a plurality of coaxially arranged first wheels having about the same radius, the second wheel set 320 comprises a plurality of coaxially arranged second wheels having about the same radius, and the support wheel set 330 comprises a plurality of coaxially arranged support wheels having about the same radius. The plurality of support wheels of the support wheel set 330 are mounted directly to the base 340 and function to support the first wheel set shaft 311 and provide for smooth rotation of the first wheel set shaft 311 (e.g., smooth rotation provided by bearings on the support wheels). The first wheels of the first wheel set 310 are mounted on a first wheel set shaft 311, and function to support the pipe 100 together with the second wheel set 320 and provide power to rotate the pipe 100.
The primary function of the first wheel set 310 is to drive the pipe 100 to rotate, that is, the first wheel set 310 is a driving wheel. A structure capable of achieving this is well known in the art, and for example, the first wheel set 310 is rotated by the rotation of the first wheel set shaft 311 (the main control motor rotates the first wheel set shaft 311), and then the pipe 100 is rotated by the friction force. And will not be described in detail herein.
The primary function of the second wheel set 320 is to drive the movement of the pipe 100. In this particular embodiment, the second wheel set 320 accomplishes this by: a force urging the movement of the conduit is generated by rotation of the second wheel, thereby driving the conduit to move through the heating zone. When the pipe 100 is placed on the first and second wheel sets 310 and 320, there is a friction force between the pipe 100 and both the first and second wheel sets 310 and 320 due to the gravity of the pipe 100 itself. When the first wheels of the first wheel set 310 rotate, the pipe 100 is driven to rotate together, thereby driving the second wheels of the second wheel set 320 to rotate together. Thus, the second wheel can be rotated to generate force for driving the pipeline to move through certain structural configuration. As shown in fig. 5, the axes of rotation of the plurality of second wheels of the second wheel set 320 are not parallel to the axial direction of the first wheel set shaft 311 (i.e., the axial direction of the duct 100), but are offset from the axial direction of the first wheel set shaft 311 (i.e., the axial direction of the duct 100) by a certain inclination angle. Thus, when the second wheels of the second wheel set 320 rotate, a driving force is generated to the duct 100 in the axial direction of the duct 100, so that the duct 100 moves in the axial direction thereof.
As shown in fig. 4, the conveying apparatus 300 further includes a plurality of second wheel holders 321, and the plurality of second wheel holders 321 are mounted on a base 340. The first function of the second wheel support 321 is to support the second wheel and the second function is to provide multiple rotational positions of the second wheel. In this embodiment, the second wheel support 321 is not fixedly mounted but rotatably connected when mounted on the base 340, that is, the second wheel support 321 is rotatable in a horizontal direction (about an axis in a vertical direction), or has a plurality of rotational positions. This arrangement has the advantage that the direction and angle in which the axis of the second wheel is offset from the axial direction of the first wheelset shaft 311 (i.e. the axial direction of the pipe 100) can be adjusted. For example, the axis of the second wheel may be offset to the angle shown in FIG. 6. When the second wheel is in the rotational position shown in fig. 6, the direction of movement of the conduit 100 is reversed from that shown in fig. 5. In addition, even if the direction in which the axis of the second wheel is deviated from the axial direction of the first wheel set shaft 311 (i.e., the axial direction of the pipe 100) is the same, the moving speed of the pipe 100 is different when the deviation angle is different, which greatly facilitates adjustment at the time of production.
As shown in fig. 4, the adjustment of the rotational position of the second wheel holder 321 can be achieved by a simple structure. The delivery device also includes a control component 350. The control part 350 functions to adjust the rotational position of the second wheel bracket 321. The control part 350 is connected to the plurality of second wheel holders 321 through a plurality of connecting rods 351, and the connecting rods 351 may be fixedly connected with the second wheel holders 321 or hinged; the control member 350 is hinged to the connecting rod 351 so that the plurality of second wheel holders 321 can be controlled to different rotational positions by operating the control member 350 to different positions, thereby adjusting the direction and angle of the axis of the second wheel, which is offset from the axial direction of the first wheel-set shaft 311 (i.e., the axial direction of the pipe 100).
The operation of the production of heating the pipeline by using the apparatus for heating the pipeline provided by this embodiment is very simple. The operation control unit 350 adjusts the rotation angle of the second wheel, places the pipe 100 on the first wheel set 310 and the second wheel set 320 at one end, turns on the medium frequency electromagnetic induction heater and the main control motor, and rotates the pipe 100 at a certain speed and passes through the heating coil of the electromagnetic induction heater from the beginning to the end to complete the heating operation. Through this kind of equipment also can carry out the continuous heating operation, first pipeline leaves heating coil after, and the second pipeline can be followed closely and get into heating coil, and production efficiency greatly improves.
Fig. 7 to 9 show a second preferred embodiment of the apparatus for heating a pipeline provided by the present invention.
As shown in fig. 7, the apparatus for heating a pipeline in this embodiment also includes the devices included in the apparatus for heating a pipeline in the first embodiment, that is, the heating device 200 and the conveying device 300, and the heated pipeline 100 is located on the conveying device 300. The heating device 200 functions to provide a heating zone and the transport device functions to drive the conduit 100 through the heating zone.
Unlike the first embodiment, the apparatus for heating a pipe in this embodiment further includes a stabilizing device for stabilizing the pipe 100 during rotation and movement of the pipe 100. In particular, the stabilization device comprises a third wheel set 400. The third wheel set 400 is mounted on a support means (not shown in the figures) of the movable third wheel set 400. When the pipeline 100 is heated, each third wheel in the third wheel group 400 is moved, so that the third wheel group 400 applies a certain pressure to the upper surface of the pipeline 100, thereby preventing the pipeline 100 from generating large vibration during rotation and movement. The pressure exerted by the third wheel set 400 on the upper surface of the pipe 100 may also increase the friction between the first wheel set and the pipe 100, such that rotation of the first wheel set better propels the pipe 100 for rotation.
Fig. 7-9 show different positions of the conduit 100 during heating, respectively. In fig. 7, the tube 100 is in the first position, not entering the heating zone, the upstream portion of the third wheel set 400 is in contact with the tube 100 and exerts pressure, and the other third wheels are in the raised position; in fig. 8, the tube 100 is in the second position with a portion in the heating zone, the middle third wheel in the third wheel set 400 is in contact with the tube 100 and exerts pressure, and the other third wheels are in the raised position; in fig. 9, the duct 100 is in the third position, away from the heating zone, and a downstream portion of the third wheel set 400, the third wheel, is in contact with the duct 100 and exerts pressure, and the other third wheels are in the raised position.
Fig. 7-9 illustrate a third wheel set 400 including eight third wheels, it being noted that fig. 7-9 are merely illustrative of the principles of the present invention and do not represent the case of fig. 7-9 as a preferred embodiment. Those skilled in the art can design the number of the corresponding third wheel sets 400 according to the principles and practical situations provided by this embodiment. In addition, the skilled person can also design the support device of the movable third wheel set according to the prior art, and will not be described in detail here.
As a variation of this embodiment, the third wheel set 400 may also be replaced with a compact.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. An apparatus for heating a pipe, comprising heating means for providing a heating zone and conveying means for driving the pipe through the heating zone, the conveying means comprising a first set of wheels for supporting the pipe, the first set of wheels being configured to drive the pipe in rotation, and a second set of wheels configured to drive the pipe in movement through the heating zone.
2. The heating apparatus as claimed in claim 1, wherein the heating means is a medium frequency electromagnetic induction heater, and the heating zone is located in a heating coil of the medium frequency electromagnetic induction heater.
3. The heating apparatus of claim 1, wherein the conveyor further comprises a first wheel set shaft, the first wheel set comprising a plurality of first wheels mounted to the first wheel set shaft, the conveyor configured to: the rotation of the first wheel set shaft can drive the plurality of first wheels to rotate, so that the pipeline is driven to rotate.
4. The heating apparatus of claim 1, wherein the second set of wheels comprises a plurality of second wheels configured to: rotation of the second wheel can generate a force that urges movement of the tube, thereby driving the tube to move through the heating zone.
5. The heating apparatus of claim 4, wherein the axes of rotation of the plurality of second wheels are offset from the axis of the conduit such that rotation of the second wheels generates a force that urges the conduit to move.
6. The heating apparatus according to claim 4, wherein the conveying device further comprises a plurality of second wheel holders on which the plurality of second wheels are respectively mounted, the plurality of second wheel holders being configured to have a plurality of rotational positions in a horizontal direction.
7. The heating apparatus according to claim 6, wherein the conveying device further comprises a control member for adjusting the rotational positions of the plurality of second wheel holders, the control member being connected with the plurality of second wheel holders and/or the plurality of second wheels through a plurality of links, respectively, so that different positions of the control member can adjust the rotational positions of the plurality of second wheel holders.
8. The heating apparatus as claimed in claim 7, wherein the control part is hinged with the plurality of links, respectively.
9. The heating apparatus of claim 1, wherein the apparatus for heating a conduit further comprises a stabilizing device configured to stabilize the conduit during rotation and movement of the conduit.
10. The heating apparatus of claim 9, wherein the stabilizing means comprises a third set of wheels or compacts configured for exerting pressure on the upper surface of the conduit, thereby effecting stabilization of the conduit during rotation and movement thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232281.6A CN111744737A (en) | 2019-03-26 | 2019-03-26 | Apparatus for heating a pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232281.6A CN111744737A (en) | 2019-03-26 | 2019-03-26 | Apparatus for heating a pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111744737A true CN111744737A (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910232281.6A Pending CN111744737A (en) | 2019-03-26 | 2019-03-26 | Apparatus for heating a pipeline |
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| CN (1) | CN111744737A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3876058A (en) * | 1971-10-19 | 1975-04-08 | Pilkington Brothers Ltd | Conveying apparatus |
| EP0742680A2 (en) * | 1995-05-10 | 1996-11-13 | Nordson Corporation | Induction heating system for 360 degrees curing of can body coatings |
| CN1861499A (en) * | 2005-05-10 | 2006-11-15 | 明和机械株式会社 | Chain-type conveyor having direction-changing roller |
| CN202061852U (en) * | 2011-04-30 | 2011-12-07 | 李志雄 | Tube driving device for rust and scale removing system of metal tube |
| EP2605221A1 (en) * | 2011-12-16 | 2013-06-19 | Wincor Nixdorf International GmbH | Device for handling containers with a roller device |
| CN103518421A (en) * | 2011-05-10 | 2014-01-15 | 诺信公司 | Induction oven for curing coatings on containers |
| TW201524871A (en) * | 2013-12-24 | 2015-07-01 | Manz Taiwan Ltd | Guiding mechanism and processing device having the same |
| CN106824708A (en) * | 2017-03-29 | 2017-06-13 | 湖南双马新材料科技有限公司 | A kind of process for utilizing heating in medium frequency for the solidification of metallic conduit coating |
-
2019
- 2019-03-26 CN CN201910232281.6A patent/CN111744737A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3876058A (en) * | 1971-10-19 | 1975-04-08 | Pilkington Brothers Ltd | Conveying apparatus |
| EP0742680A2 (en) * | 1995-05-10 | 1996-11-13 | Nordson Corporation | Induction heating system for 360 degrees curing of can body coatings |
| CN1861499A (en) * | 2005-05-10 | 2006-11-15 | 明和机械株式会社 | Chain-type conveyor having direction-changing roller |
| CN202061852U (en) * | 2011-04-30 | 2011-12-07 | 李志雄 | Tube driving device for rust and scale removing system of metal tube |
| CN103518421A (en) * | 2011-05-10 | 2014-01-15 | 诺信公司 | Induction oven for curing coatings on containers |
| EP2605221A1 (en) * | 2011-12-16 | 2013-06-19 | Wincor Nixdorf International GmbH | Device for handling containers with a roller device |
| TW201524871A (en) * | 2013-12-24 | 2015-07-01 | Manz Taiwan Ltd | Guiding mechanism and processing device having the same |
| CN106824708A (en) * | 2017-03-29 | 2017-06-13 | 湖南双马新材料科技有限公司 | A kind of process for utilizing heating in medium frequency for the solidification of metallic conduit coating |
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Application publication date: 20201009 |