CN109352942A - A kind of floating bed crosslinking furnace for Peroxide-crosslinked Pe Pipe preparation - Google Patents
A kind of floating bed crosslinking furnace for Peroxide-crosslinked Pe Pipe preparation Download PDFInfo
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- CN109352942A CN109352942A CN201811446768.6A CN201811446768A CN109352942A CN 109352942 A CN109352942 A CN 109352942A CN 201811446768 A CN201811446768 A CN 201811446768A CN 109352942 A CN109352942 A CN 109352942A
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- inner chamber
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- 238000007667 floating Methods 0.000 title claims abstract description 98
- 238000004132 cross linking Methods 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 47
- 239000007789 gas Substances 0.000 claims abstract description 113
- 239000011261 inert gas Substances 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 230000008676 import Effects 0.000 claims description 19
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 18
- 238000004513 sizing Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000004717 peroxide crosslinked polyethylene Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005339 levitation Methods 0.000 description 2
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- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
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- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 229920002521 macromolecule Polymers 0.000 description 1
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- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Abstract
A kind of floating bed for Peroxide-crosslinked Pe Pipe preparation provided by the invention is crosslinked furnace, including floating bed body, first inner chamber, several puff prots and at least one gas outlet；At least one gas supply mechanism, for conveying inert hot gas into first inner chamber；Regulating member, the flow velocity or flow of inert hot gas are conveyed for adjusting gas supply mechanism into first inner chamber, it is suspended in first inner chamber so that the hot inert gas in first inner chamber surrounds and supports pipe, the axis of the axis of pipe and extruder pipe die is on the same line.Pipe suspends in inert gas completes crosslinking, and resistance is small, while reducing the possibility and fire risk of pipe thermo-oxidative ageing；Pipe is straight, is adapted to the manufacture of different bore Peroxide-crosslinked Pe Pipes；It is crosslinked distance by the length and inert gas temperature change that change floating bed body, crosslinking time is controlled, it is relatively simple to float bed structure.
Description
Technical field
The present invention relates to a kind of technical fields of plastics machinery, and in particular to one kind is used for peroxide-crosslinked polyethylene pipe
The floating bed of material preparation is crosslinked furnace.
Background technique
The macromolecule tubing that prior art peroxide crosslinked polyethylene needs cross-linking reaction to prepare, industrialized manufacture side
Method mainly has synchronous cross-linking method and post-crosslinking method.Wherein, synchronous cross-linking method be material melts plasticizing and forming process in simultaneously
Complete the process of crosslinking；Post-crosslinking method is material first through fusion plastification and molding, then completes cross-linking process, that is to say that material is squeezing
First extrusion molding is pipe in machine out, then is crosslinked to pipe.
For example, Chinese patent literature CN102139538A is disclosed to prepare peroxide crosslinked polyethylene using post-crosslinking method
The method of tubing, in this method between the ring exit and cooling device of the pipe die of extruder setting crosslinking furnace, pipe warp
It crosses and carries out cross-linking reaction in crosslinking furnace.The crosslinking furnace includes cabinet of the bottom in opening, is located at two of bottom of box opening
First roller, cabinet inner top are equipped with the second roller, and setting multiple groups are red between intracorporal first roller of case and the second roller
Additional thermal modules.After pipe is come out in the horizontal direction from the pipe die of extruder, pipe is first wound on one through the bottom opening of cabinet
On a first roller, so that the moving direction of pipe is converted into vertically by level, pipe is conveyed and is wound on vertically upwards later
On second roller, so that the direction that pipe is fed forward by being converted into downward conveying upwards, pipe is further around in the bottom of box later
On another first roller of opening, so that the conveying direction of pipe by being then converted to level vertically.Due to multiple infrared heatings
Module is located between the first roller and the second roller, then pipe is heated real in turn in the process that is delivered up and downward transmission process
Now it is crosslinked.
But pipe be crosslinked furnace in be crosslinked when, the inner cavity of cabinet is in communication with the outside, inevitably the intracorporal air of case
In containing oxygen and being heated, then pipe exposes to the open air in hot-air completely, and the outer surface of pipe is easy to happen thermal oxide, leads to pipe
Base aging；Simultaneously because infrared heating module surface temperature is high, exposes to the open air and be mounted on cabinet wall, the pipe in cross-linking process touches
When to infrared heating module, fire occurs often, there are fire hazards；Meanwhile above-mentioned crosslinking furnace is preparing bigbore pipe
When material, pipe is around the first roller and the steering of the second roller, and bigbore tubing is easy the extruding by roller, so that heavy caliber
Tubing deforms, and for that can prepare heavy caliber pipe, supporting block need to be also separately provided in above-mentioned crosslinking furnace around roller, comes
Pipe is supported, is deformed to avoid pipe when turning to, causes entirely to be crosslinked furnace that structure is complicated.
Summary of the invention
Therefore, technical problem to be solved by the present invention lies in existing crosslinking furnaces in pipe cross-linking process, pipe
It is easy aging, structure is complicated when causing fire hazard and preparing heavy caliber pipe.
For this purpose, the present invention provides a kind of floating bed crosslinking furnace for Peroxide-crosslinked Pe Pipe preparation, including
Floating bed body has and passes through for pipe and along the first inner chamber that the axis of extruder pipe die extends, and with described the
Several puff prots of one inner cavity connection and at least one gas outlet；
At least one gas supply mechanism is connect with the puff prot, for conveying inert hot gas into the first inner chamber；
Regulating member is located on the gas supply mechanism, is conveyed for adjusting the gas supply mechanism into the first inner chamber
The flow velocity or flow of inert hot gas, so that the hot inert gas in the first inner chamber surrounds and supports the pipe and is suspended in
In the first inner chamber, and the axis of the axis of the pipe and extruder pipe die is on the same line.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, the floating bed body
Cross-sectional shape axisymmetricly figure.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, and the gas outlet is set
At the top of the zhou duicheng tuxing；All puff prots are symmetrically distributed on the zhou duicheng tuxing.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, positioned at the institute of top layer
State the top that puff prot is higher than the pipe in the height direction.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, is located at the pipe
The puff prot the radially extending along the pipe of the lower section of horizontal plane where axis；
The puff prot positioned at the top of the horizontal plane where the pipe axis is horizontally extending.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, the axial symmetry figure
Shape is the U-shaped that cover board is set in top opening, and the gas outlet is located on the cover board.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, the regulating member
For barometric damper.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, further includes cabinet, institute
Floating bed body is stated to be fixed in the cabinet；Closed housing is surrounded between the wall outer surface and the cabinet of the floating bed body；Institute
It states cabinet and is equipped with the first import being connected to the closed housing；
The gas supply mechanism includes being located at the intracorporal heater of the closed chamber, and the gas supply connecting with first import
Pipe；The air supply pipe is equipped with the gas supplementing opening connecting with inert gas source；
The regulating member is located on the air supply pipe.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, the air supply pipe
Both ends are connected to first import and the gas outlet；
The gas supply mechanism further includes the blower being located on the air supply pipe.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, further includes for examining
The temperature sensor of the inert gas temperature in the first inner chamber is surveyed, and electric with the temperature sensor and the heater
First controller of connection, first controller is according to the signal of the temperature sensor, to control the work of the heater
Operation mode, to adjust the inert gas temperature in the first inner chamber.
Optionally, the above-mentioned floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, further includes for examining
The air velocity transducer of the wind speed of inert gas in the first inner chamber is surveyed, and equal with the air velocity transducer and the regulating member
The second controller of electrical connection, the second controller is according to the signal of the air velocity transducer, to control the regulating member
Unlatching amplitude.
Technical solution of the present invention has the advantages that
1. provided by the present invention for the floating bed crosslinking furnace of Peroxide-crosslinked Pe Pipe preparation, including floating bed body,
At least one gas supply mechanism and regulating member.Wherein floating bed body, which has, passes through for pipe and extends along the axis of extruder pipe die
First inner chamber, and several puff prots being connected to the first inner chamber and at least one gas outlet；Gas supply mechanism and the spray
Port connection, for conveying inert hot gas into the first inner chamber；Regulating member is located on the gas supply mechanism, for adjusting
Flow velocity from inert hot gas to the first inner chamber or flow that the gas supply mechanism conveys are saved, so that in the first inner chamber
Hot inert gas surrounds and supports the pipe and is suspended in the first inner chamber, and the axis of the pipe and extruder pipe machine
The axis of head is on the same line.
The floating bed for Peroxide-crosslinked Pe Pipe preparation of this structure is crosslinked furnace, pipe machine of the pipe from extruder
Enter in the first inner chamber of floating bed body after being squeezed out in the circular passage of head, gas supply mechanism is conveyed by puff prot into first inner chamber
Inert hot gas, the regulating member on gas supply mechanism adjust the flow velocity or flow of conveying inert hot gas in first inner chamber, make lazy
Property hot gas be enclosed on the peripheral outer wall face of pipe and support pipe, provide overcome pipe be self-possessed buoyancy, so that pipe is suspended
In first inner chamber, heat entrained by inert hot gas provides pipe crosslinking required temperature and heat, and pipe is in suspended state
Lower completion crosslinking, resistance are small；In cross-linking process, inert gas separates pipe and outside air, prevents pipe from hot oxygen occurs
Aging phenomenon, moreover it is possible to eliminate fire hazard；Meanwhile pipe is only suspended in first inner chamber by inert hot gas, so that pipe
Axis is consistent with the axis of pipe die, guarantees that the pipe for entering first inner chamber is straight.In addition, since pipe is suspended in first inner chamber
In, it, can be by changing the width of first inner chamber come for heavy caliber pipe suspension crosslinking in the pipe crosslinking for different bores；
It can also increase or reduce the length of floating bed body according to demand and change inert gas temperature, when crosslinking to control pipe
Between, so that the structure of entire floating bed crosslinking furnace is simple.
2. it is crosslinked furnace provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation, the floating bed body
Cross-sectional shape axisymmetricly figure.The gas outlet is located at the top of the zhou duicheng tuxing；All puff prots are symmetrical
It is distributed on the zhou duicheng tuxing.The floating bed for Peroxide-crosslinked Pe Pipe preparation of this structure is crosslinked furnace, floats
The cross-sectional shape of bed body axisymmetricly figure, all puff prots be on zhou duicheng tuxing it is symmetrical, such structure is just
The flow velocity or flow of inertia thermal current at left and right sides of control floating bed body cross section, so that left-right position of the pipe in pipe axis
It is upper to keep symmetrical.
3. furnace is crosslinked provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation, positioned at the institute of top layer
State the top that puff prot is higher than the pipe in the height direction.This structure is prepared for Peroxide-crosslinked Pe Pipe
Floating bed be crosslinked furnace, the puff prot in pipe top-direction provides opposite inertia thermal current at the top of pipe, except providing
Outside necessary temp needed for top pipe is crosslinked and heat, moreover it is possible to avoid pipe from beating, so that pipe is in the upper bottom of pipe axis
It is symmetrical to set holding.
4. being crosslinked furnace provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation, it is located at the pipe
The puff prot the radially extending along the pipe of the lower section of horizontal plane where axis；Where the pipe axis
The puff prot of the top of horizontal plane is horizontally extending.
This structure for Peroxide-crosslinked Pe Pipe preparation floating bed be crosslinked furnace, pipe from extruder squeeze out into
Enter first inner chamber, regulating member adjusts gas supply mechanism and supplies into first inner chamber, the horizontal plane where the pipe axis
Lower section puff prot radially extending along pipe, inertia thermal current provides pipe component along the vertical and horizontal directions, vertically
Component overcomes pipe from resuspension, and horizontal component keeps pipe in the left-right position of pipe axis symmetrically, while inertia
Necessary temp and heat needed for the pipe that thermal current is capable of providing the lower section of the horizontal plane where pipe axis is crosslinked.
Puff prot positioned at the top of the horizontal plane where pipe axis is horizontally extending, is located at where pipe axis
The inertia thermal current of the puff prot offer of lower section can make pipe in horizontal plane where pipe axis above horizontal plane, at the top of pipe
Above section keeps bilateral symmetry；Opposite inertia thermal current is provided at the top of pipe higher than the puff prot on pipe direction, with
The vertical stress component that the air-flow that the puff prot radially extended sprays provides balances each other, so that pipe is on the upper and lower position of pipe axis
Keep symmetrical, while inertia thermal current is capable of providing necessary temperature needed for the pipe crosslinking of the top of the horizontal plane where pipe axis
Degree and heat.
5. being crosslinked furnace, the axial symmetry figure provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation
Shape is the U-shaped that cover board is set in top opening, and the gas outlet is located on the cover board.U-shaped structure is in addition to that can make pipe in its axis
Central symmetry is kept on direction, while the airflow direction in U-shaped structure more than pipe top is horizontal direction, U-shaped structure
First inner chamber is connected to at least one described gas outlet, and horizontal air-flow flows through to be led under the influence of air pressure at the position of gas outlet
Gas outlet recycling is crossed to enter in feeder.The size of U-shaped floating bed body can be adjusted according to the diameter for preparing pipe, be adapted to
In the pipe of production arbitrary diameter, and the structure of floating bed crosslinking furnace is simple.
It further include cabinet 6. being crosslinked furnace provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation,
The floating bed body is fixed in the cabinet；Closed housing is surrounded between the wall outer surface and the cabinet of the floating bed body；
The cabinet is equipped with the first import being connected to the closed housing；The gas supply mechanism includes being located in the closed housing
Heater, and the air supply pipe connecting with first import, the gas supplementing opening of the air supply pipe connect with inert gas source；The tune
Section component is located on the air supply pipe.
The floating bed for Peroxide-crosslinked Pe Pipe preparation of this structure is crosslinked furnace, the wall outer surface of floating bed body
Closure cabinet is formed between cabinet, cabinet is equipped with the first import being connected to closed housing, and the first import and air supply pipe connect
It connects, gas supply mechanism conveys inert gas, the intracorporal inert gas of closed chamber into closed housing by air supply pipe and the first import
Heated device heating provides pipe and is crosslinked institute's calorific requirement, then is entered in floating bed body by puff prot, can effectively reduce air supply pipe number
Amount, economizes on resources and cost.
7. it is crosslinked furnace provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation, the air supply pipe
Both ends are connected to first import and the gas outlet；The gas supply mechanism further includes the wind being located on the air supply pipe
Machine.The floating bed for Peroxide-crosslinked Pe Pipe preparation of this structure is crosslinked furnace, under the action of blower, inert gas
Enter in floating bed body through air supply pipe, the first import, then returned in air supply pipe through gas outlet, is so recycled, inert hot gas can
It is recycled, economizes on resources and the energy.
It further include for examining 8. being crosslinked furnace provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation
The temperature sensor of the inert gas temperature in the first inner chamber is surveyed, and electric with the temperature sensor and the heater
First controller of connection, the controller is according to the signal of the temperature sensor, to control the Working mould of the heater
Formula, to adjust the inert gas temperature in the first inner chamber.
The floating bed for Peroxide-crosslinked Pe Pipe preparation of this structure is crosslinked furnace, and the temperature in first inner chamber passes
Sensor obtains the temperature of the inert hot gas in first inner chamber, and temperature signal is then reached the first controller, the first controller
Control heater adjustment heter temperature avoids temperature excessively high, pipe so that inert gas temperature be made to be in adjustable range
Degradation or temperature are too low, it is difficult to realize crosslinking.
It further include for examining 9. being crosslinked furnace provided by the present invention for the floating bed of Peroxide-crosslinked Pe Pipe preparation
The air velocity transducer of the wind speed of inert gas in the first inner chamber is surveyed, and equal with the velocity sensor and the regulating member
The second controller of electrical connection, the controller are opened according to the signal of the velocity sensor with controlling the regulating member
Amplitude.The floating bed for Peroxide-crosslinked Pe Pipe preparation of this structure is crosslinked furnace, works as first inner chamber under working condition
In wind speed when can not suspend so as to cause pipe slowly excessively, speed signal is reached second controller, the second control by air velocity transducer
Device processed adjusts wind speed by adjusting the unlatching amplitude of regulating member, and wind speed is continuously adjustable so that pipe or enough to suspension
Speed.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the floating bed for Peroxide-crosslinked Pe Pipe preparation provided in the embodiment of the present invention 1 is crosslinked furnace
Transverse sectional view；
Fig. 2 is the longitudinal cross-section schematic diagram for being crosslinked furnace in Fig. 1 for the floating bed of Peroxide-crosslinked Pe Pipe preparation
(section perpendicular to pipe axis is cross section, and the section for being parallel to pipe axis is longitudinal section).
Description of symbols:
1- floating bed body；11- first inner chamber；2- puff prot；The gas outlet 3-；4- barometric damper；5- cabinet；51- closed chamber
Body；The first import of 6-；7- heater；8- air supply pipe；9- gas supplementing opening；10- blower；The first controller of 12-；13- air velocity transducer；
14- second controller；15- pipe；16- inertia thermal current；17- temperature sensor.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of floating beds for Peroxide-crosslinked Pe Pipe preparation to be crosslinked furnace, such as Fig. 1 and Fig. 2
It is shown comprising 1, gas supply mechanism of floating bed body and barometric damper 4.
Wherein, floating bed body 1 have passed through for pipe 15 and along the axis of extruder pipe die extend first inner chamber 11, and
Several puff prots 2 being connected to the first inner chamber 11 and a gas outlet 3.One gas supply mechanism and all puff prots 2 connect
It connects, gas supply mechanism conveys inert hot gas into first inner chamber 11, and barometric damper 4 is located on gas supply mechanism, supplies for adjusting
Mechanism of qi structure conveys the flow velocity or flow of inert hot gas into first inner chamber 11, so that the thermal inertia gas in the first inner chamber 11
Body surrounds and supports the pipe 15 and is suspended in the first inner chamber 11, and the axis of the pipe 15 and extruder pipe die
Axis on the same line.
Wherein, inert hot gas is chosen as carbon dioxide or nitrogen or rare gas, which carries
Certain temperature and enough heats, to guarantee that pipe completes cross-linking reaction.The inertia thermal current vertically sprayed, except offer pipe axis
Necessary temp needed for the pipe of the lower section of horizontal plane where line is crosslinked and heat additionally provide vertical point for overcoming tubing to be self-possessed
Power.The inertia thermal current of horizontal-jet also makes its axis of two lateral edge of pipe in addition to providing pipe two sides crosslinking required temperature and heat
Line is symmetrical, to prevent pipe off-axis.Inert hot gas involved in present embodiment will not be joined in pipe cross-linking process
It with cross-linking reaction, while will not be reacted again with the oxygen in air, form the protective layer of one layer of isolation in the outside wall surface of pipe,
The oxygen in pipe and air is separated as long as realizing.
For example, puff prot 2 is in hole shape；Axisymmetricly figure, gas outlet are located at axial symmetry figure to the cross-sectional shape of floating bed body 1
On the top of shape, for example zhou duicheng tuxing is the U-shaped that top opening is equipped with cover board, and gas outlet 3 is located on the cover board of U-shaped, more
A puff prot 2 is symmetrically arranged on the two sidewalls and bottom of U-shaped, and the inner cavity of U-shaped forms first inner chamber, the front end of first inner chamber and is squeezed
The circular passage connection of machine pipe die out, so that the annular pipe squeezed out in the circular passage of extruder pipe die is directly entered
In first inner chamber.Symmetrical puff prot 2 can facilitate control indifferent gas when gas supply mechanism is supplied into first inner chamber 11
The flow velocity and flow of body.
The radially extending along the pipe 15 of puff prot 2 positioned at the lower section of the horizontal plane where 15 axis of pipe, it is radial
The puff prot of extension provides vertically and horizontal direction pipe so that inert hot gas radially applies active force to pipe
Component, vertical force component is suspended in pipe 15 in floating bed body 1, and the opposite component in the symmetrical two sides of pipe 15 makes pipe 15 in its axis
It keeps symmetrical in the left-right position of line, pipe 15 is avoided to be bent.That is, the part inert hot gas gives the lower half of pipe
Add active force radially, pipe is suspended.
Puff prot 2 positioned at the top of the horizontal plane where 15 axis of pipe is horizontally extending, and puff prot 2 is along level
Direction extends, which applies active force to pipe in left and right directions, so that the left and right sides of the pipe in Fig. 1
The active force being subject to is identical, and pipe 15 keeps symmetrical in the two sides of its axis, and pipe 15 is avoided to be bent or have the trend of rotation,
That is, the part inert hot gas applies the active force of horizontal direction to the top half of pipe, without vertical active force.Such as figure
Shown in 1, it is higher than the top of the pipe 15 to suspend in first inner chamber in the height direction positioned at the puff prot 2 of top layer, it is ensured that inertia
Hot gas can be higher than pipe and surround the top of pipe, meanwhile, the inertia thermal current 16 of top layer is at gas outlet 3 due to air pressure
First inner chamber can be discharged by gas outlet 3 in the effect of difference.
One gas supply mechanism is connect with all puff prots 2, and gas supply mechanism conveys inert hot gas into first inner chamber 11,
It as depicted in figs. 1 and 2, further include cabinet 5 on floating bed crosslinking furnace, floating bed body 1 is fixed in cabinet 5, the side wall of floating bed body 1 and bottom
The outer surface in portion and cabinet 5 surround closed housing 51, and cabinet 5 is equipped with the first import 6 being connected to closed housing 51；That is,
Cabinet is set in that U-shaped floating bed is external, and other parts of the floating bed body in addition to top are surrounded.
As shown in Figure 1, gas supply mechanism includes heater, air supply pipe and blower.Heater is located in closed housing 51, such as
Heater is infrared heater, hot water radiation wire heater etc..The both ends of air supply pipe are connected to the first import and gas outlet, make
It obtains inert hot gas to recycle, reduces energy consumption.
Air supply pipe 8 is equipped with gas supplementing opening 9, wherein the gas supplementing opening of air supply pipe is connect with inert gas source, is used for closed housing
Inside constantly supplement fresh inert gas.One valve is set at gas supplementing opening 9, is connected to for controlling in gas supplementing opening and air supply pipe
Whether.
Inert gas, edge after the heated device 7 of inert gas heats are conveyed into closed housing 51 by first import 6
Puff prot 2 enters first inner chamber, reduces the quantity of gas supply mechanism, economizes on resources and cost, while making the knot of floating bed crosslinking furnace
Structure becomes more simple；Inert gas enters in first inner chamber 11 after being heated by heater 7 is suspended in pipe in first inner chamber；
Floating bed is crosslinked in furnace start-up operation or the course of work, conveys inert gas into air supply pipe 8 by gas supplementing opening 9；On air supply pipe 8
Barometric damper 4 controls inert gas flow and flow velocity, so that pipe 15 is obtained enough floating velocities and swims in first inner chamber 11
In.
Blower and barometric damper are each provided on air supply pipe, under the action of blower so that inert hot gas air supply pipe,
Circulation loop is formed between closed housing and first inner chamber.That is, blower 10 is opened, inert gas enters closed chamber through air supply pipe
In body 51, inert gas enters in first inner chamber 11 after being heated by heater 7 through puff prot, and inert gas is returned to through gas outlet again
In air supply pipe, again flowed into closed housing 51 later, and so on ground recycle, with energy saving.
As shown in Figure 1, floating bed crosslinking furnace further includes passing for detecting the temperature of the inert gas temperature in first inner chamber 11
Sensor 17, and the first controller 12 being electrically connected with temperature sensor 17 and heater 7, the first controller 12 are passed according to temperature
The signal of sensor 17, to control the operating mode of heater 7, to adjust the inert gas temperature in first inner chamber 11.
For example, when temperature sensor detects that the inert gas temperature in first inner chamber is relatively low, the first controller 12
According to the temperature signal, controls heater 7 and enter heating work mode, to improve the temperature of inert gas；When temperature sensor is examined
When measuring the inert gas temperature in first inner chamber and reaching preset temperature, enough pipes 15 are crosslinked required temperature, the first controller
12 control heaters 7 enter suspend mode operating mode, stop the valve opening at heated inert gas, or control gas supplementing opening, to
The fresh inert gas of input in closed housing, to reduce the temperature of the inert gas in first inner chamber, with energy saving.
When being crosslinked to crosslinkable polyethylene pipe, the operating mode of heater is controlled by controller, so that first
The temperature of the inert gas of inner cavity, to adjustable state at any time within the scope of 300 degree, prevents the temperature mistake of inert hot gas in room temperature
Heat can make pipe degrade instead, influence the performance of pipe, or prevent the temperature of inert hot gas too low, cannot protect positive pipe
Base carries out being crosslinked required energy consumption.The temperature that inert hot gas is heated adjusts according to demand, the pipe of unlike material, crosslinking
Required temperature is different, can the crosslinking temperature according to needed for different type pipe 15 be adjusted.
As shown in Figure 1, floating bed crosslinking furnace further includes the wind speed for detecting the wind speed of inert hot gas in first inner chamber 11
Sensor 13, and the second controller 14 being electrically connected with velocity sensor and barometric damper 4, second controller 14 is according to wind
The signal of fast sensor 13, to control 4 unlatching amplitude of barometric damper.
When pipe constantly moves forward in first inner chamber, if air velocity transducer detects the gas in first inner chamber 11
When flow velocity degree is less than preset value, signal is reached second controller 14 by air velocity transducer 13, and second controller 14 is according to the signal
Increase to adjust the amplitude of the unlatching of barometric damper 4, so that wind speed increases, so that pipe is in preset levitation position；If
When air velocity transducer detects that the wind speed of the inert hot gas in first inner chamber is greater than preset value, second controller is according to the wind speed
Signal, the amplitude that control barometric damper is opened is small, to reduce wind speed, so that pipe is in preset levitation position.First control
Device 12 processed can be temperature controller, and second controller 14 is Wind-speed controller, can also be controlled simultaneously by a controller
Temperature and speed.
When the floating bed crosslinking furnace of this embodiment is worked, pipe 15 is squeezed from the circular passage of the pipe die of extruder
Out, pipe enters in the first inner chamber 11 of floating bed body 1 under the traction of traction mechanism, and gas supply mechanism is by the first import 6 to closing
It closes and conveys inert gas in cavity 51, the heated device 7 of inert gas enters in first inner chamber 11 after heating through puff prot 2, herein
In the process, controller obtains the temperature and speed that signal controls inert gas by temperature sensor 17 and air velocity transducer 13,
So that pipe 15 obtains suitable crosslinking temperature and floating velocity.The temperature of inert gas is continuously controllable, can guarantee pipe 15
It obtains enough crosslinking temperatures while the excessively high pipe 15 of temperature being avoided to degrade, influence pipe workpiece quality.The speed of inert gas
It is continuously adjustable, so that pipe 15 obtains enough floating velocities while can balance relative to holding in 15 axial location of pipe,
Pipe 15 is avoided to be bent.Pipe 15 under the traction of traction mechanism to 1 exit movement of floating bed body, pipe 15 after completing crosslinking into
Enter sizing cooling device and carry out sizing cooling, obtains pipe finished.First be crosslinked after sizing tubing along its axial direction in answer
Power is small, reduces macromolecular chain tendency orientation in tube wall, improves the service performance of tubing.
As first interchangeable embodiment of embodiment 1, the cross-sectional shape of floating bed body 1 can also be others
Zhou duicheng tuxing, such as cross-sectional shape are rectangle, round perhaps V-arrangement or the zhou duicheng tuxing of other arbitrary shapes etc.
Deng, only multiple puff prots need to be symmetrical arranged on zhou duicheng tuxing, under the adjusting of barometric damper, symmetrically by inert gas
It sprays into first inner chamber, pipe is suspended in first inner chamber, is existed so that pipe does not rotate with the axis of its axis and pipe die
On same straight line.
Alternatively, the cross-sectional shape of floating bed body can not also axisymmetricly figure, can be any other shapes, only need to be
Puff prot is set on its wall surface, by adjusting the flow velocity or flow of inert hot gas, the pipe in first inner chamber is suspended in pre-
If at position, concrete shape without limitation, at this point, be preferably provided multiple gas supply mechanisms, each gas supply mechanism
Upper at least one barometric damper of setting, gas supply mechanism is adjusted by multiple barometric dampers and is passed through into closed housing
Inert gas, be more convenient for controlling the flow velocity or flow of the inert hot gas in first inner chamber.
As second interchangeable embodiment of embodiment 1, the opening direction of puff prot 2 can be horizontal according to floating bed body 1
The change of the shape in section and change, when the shape of 1 cross section of floating bed body is rectangle, water where 15 axis of pipe
The puff prot 2 of the lower section of plane extends along the vertical direction, positioned at 2 edge of puff prot of the top of the horizontal plane where 15 axis of pipe
Horizontal direction extends；When the shape of 1 cross section of floating bed body is round, puff prot 2 is radially extended along pipe 15.As long as jet
Mouthfuls 2 opening direction can make what pipe 15 do not bent, and reversed and rotate to be suspended in first inner chamber 11.Or along it
He opens up in direction.
As the interchangeable embodiment of third of embodiment 1, inert gas can be the rare gas such as helium, neon, argon,
As long as being also possible to carbon dioxide, perhaps hot endowmentization or fire phenomena will not occur in the inert gas for nitrogen pipe 15
?.
As the 4th interchangeable embodiment of embodiment 1, air supply pipe can not also be connect with gas outlet, air supply pipe
It is connect with the first import, at this time the although not formed circulation loop of the inert gas in air supply pipe, but still is able to achieve above-mentioned function.
Alternatively, cabinet can not also be set, heater heats the gas at inert gas source, and inert hot gas is directly delivered to air supply pipe
It is interior, need to be arranged multiple air supply pipes certainly, air supply pipe can connect correspondingly with puff prot, be transferred directly in first
In chamber, be accordingly respectively provided with barometric damper on air supply pipe, come on each air supply pipe wind speed or component be adjusted.
As the 5th interchangeable embodiment of embodiment 1, barometric damper may be replaced with other valves
Door, for example, ventilation butterfly valve, ball valve or volume damper, opened and closed or adjusted by control valve inert hot gas flow velocity or
Flow.
Embodiment 2
The present embodiment provides a kind of preparation systems of plastic pipe, including being used for peroxide described in any one of embodiment 1
The floating bed of compound cross-linked polyethylene pipe preparation is crosslinked furnace；Described the of extruder, the ring exit of pipe die and floating bed body 1
The inlet communication of one inner cavity 11 is arranged；Sizing mechanism is arranged with the outlet of the first inner chamber 11 of the floating bed body 1,
For the diameter sizing to the pipe 15 after crosslinking.
The ring exit of pipe die is connected to setting with first inner chamber, and pipe is directly entered in first after pipe die extrusion
Chamber can guarantee that serialization metaplasia produces；Pipe is completed to carry out sizing again into sizing mechanism after being crosslinked in first inner chamber, avoids
Existing stretching sizing can lead to the problem of the larger internal stress for being parallel to pipe axis in tube wall, reduce macromolecular chain in tube wall
Orientation tendency, improves the service performance of tubing.
The tubing of crosslinking is completed, heavy caliber pipe enters vacuum sizing device and carries out sizing, and then spraying cooling, obtains pipe
Material finished product；Minor caliber pipe enters sizing ring diameter-setting equipment sizing, then impregnates cooling, obtains pipe finished.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (11)
1. a kind of floating bed for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, which is characterized in that including
Floating bed body (1), have passed through for pipe (15) and along the axis of extruder pipe die extend first inner chamber (11), and with
Several puff prots (2) of first inner chamber (11) connection and at least one gas outlet (3)；
At least one gas supply mechanism is connect with the puff prot (2), for conveying inertia hot gas into the first inner chamber (11)
Body；
Regulating member is located on the gas supply mechanism, for adjusting gas supply mechanism conveying into the first inner chamber (11)
The flow velocity or flow of inert hot gas, so that the hot inert gas in the first inner chamber (11) surrounds and supports the pipe
(15) it is suspended in the first inner chamber (11), and the axis of the axis of the pipe (15) and extruder pipe die is the same as always
On line.
2. the floating bed according to claim 1 for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, feature exists
In, the cross-sectional shape of the floating bed body (1) axisymmetricly figure.
3. the floating bed according to claim 2 for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, feature exists
In the gas outlet (3) is located at the top of the zhou duicheng tuxing；All puff prots (2) are symmetrically distributed in the axis pair
Claim on figure.
4. the floating bed according to claim 3 for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, feature exists
In the puff prot (2) positioned at top layer is in the height direction higher than the top of the pipe (15).
5. the floating bed according to claim 3 or 4 for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, feature
It is, is located at diameter of the puff prot (2) along the pipe (15) of the lower section of the horizontal plane where the pipe (15) axis
To extension；
The puff prot (2) positioned at the top of the horizontal plane where the pipe (15) axis is horizontally extending.
6. for the floating bed crosslinking of Peroxide-crosslinked Pe Pipe preparation according to any one of claim 2-5
Furnace, which is characterized in that the zhou duicheng tuxing is the U-shaped that cover board is set in top opening, and the gas outlet is located on the cover board.
7. the floating bed crosslinking according to claim 1 to 6 for Peroxide-crosslinked Pe Pipe preparation
Furnace, which is characterized in that the regulating member is barometric damper (4).
8. according to claim 1 for the floating bed crosslinking of Peroxide-crosslinked Pe Pipe preparation described in any one of -7
Furnace, which is characterized in that further include cabinet (5), the floating bed body (1) is fixed in the cabinet (5)；The floating bed body (1)
Closed housing (51) are surrounded between side wall and the outer surface and the cabinet (5) of bottom；The cabinet (5) is equipped with and closes with described
Close the first import (6) of cavity (51) connection；
The gas supply mechanism includes the heater (7) being located in the closed housing (51), and is connect with first import (6)
Air supply pipe (8)；The air supply pipe (8) is equipped with the gas supplementing opening (9) connecting with inert gas source；
The regulating member is located on the air supply pipe (8).
9. the floating bed according to claim 8 for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, feature exists
In the both ends of the air supply pipe (8) are connected to first import (6) and the gas outlet (3)；
The gas supply mechanism further includes the blower (10) being located on the air supply pipe (8).
10. the floating bed according to claim 8 for Peroxide-crosslinked Pe Pipe preparation is crosslinked furnace, feature exists
In, further include the temperature sensor (17) for detecting the inert gas temperature in the first inner chamber (11), and with the temperature
The first controller (12) that degree sensor (17) and the heater (7) are electrically connected, first controller (12) is according to institute
The signal of temperature sensor (17) is stated, to control the operating mode of the heater (7), to adjust in the first inner chamber (11)
Inert gas temperature.
11. the floating bed crosslinking according to claim 1 to 10 for Peroxide-crosslinked Pe Pipe preparation
Furnace, which is characterized in that it further include the air velocity transducer (13) for detecting the wind speed of the first inner chamber (11) interior inert gas,
And the second controller (14) being electrically connected with the air velocity transducer (13) and the regulating member, the second controller root
According to the signal of the air velocity transducer (13), to control the unlatching amplitude of the regulating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811446768.6A CN109352942B (en) | 2018-11-29 | 2018-11-29 | Floating bed crosslinking furnace for preparing peroxide crosslinked polyethylene pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811446768.6A CN109352942B (en) | 2018-11-29 | 2018-11-29 | Floating bed crosslinking furnace for preparing peroxide crosslinked polyethylene pipe |
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| CN109352942B CN109352942B (en) | 2024-02-06 |
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| CN201811446768.6A Active CN109352942B (en) | 2018-11-29 | 2018-11-29 | Floating bed crosslinking furnace for preparing peroxide crosslinked polyethylene pipe |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139538A (en) * | 2010-01-23 | 2011-08-03 | 因诺伊克斯有限责任公司 | Method for producing peroxide-crosslinked polyethylene pipe in extrusion line |
| CN209063483U (en) * | 2018-11-29 | 2019-07-05 | 浙江曼瑞德舒适系统有限公司 | A kind of floating bed crosslinking furnace for Peroxide-crosslinked Pe Pipe preparation |
-
2018
- 2018-11-29 CN CN201811446768.6A patent/CN109352942B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139538A (en) * | 2010-01-23 | 2011-08-03 | 因诺伊克斯有限责任公司 | Method for producing peroxide-crosslinked polyethylene pipe in extrusion line |
| CN209063483U (en) * | 2018-11-29 | 2019-07-05 | 浙江曼瑞德舒适系统有限公司 | A kind of floating bed crosslinking furnace for Peroxide-crosslinked Pe Pipe preparation |
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| CN109352942B (en) | 2024-02-06 |
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