CN111889032A - Reaction device for thermal shrinkage process - Google Patents

Reaction device for thermal shrinkage process Download PDF

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Publication number
CN111889032A
CN111889032A CN201910370486.0A CN201910370486A CN111889032A CN 111889032 A CN111889032 A CN 111889032A CN 201910370486 A CN201910370486 A CN 201910370486A CN 111889032 A CN111889032 A CN 111889032A
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spherical
outlet
wall
pipe
chamber
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CN201910370486.0A
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CN111889032B (en
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范育旻
邓颖聪
张丹丹
鲁异
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Tyco Electronics Shanghai Co Ltd
TE Connectivity Corp
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Tyco Electronics Shanghai Co Ltd
TE Connectivity Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/005Fusing

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

There is provided a reaction device for a heat-shrinking process, comprising: a first pipe provided with an inlet for receiving a hot fluid; and a heating device, wherein a spherical cavity is formed in the heating device, and hot fluid flows into the spherical cavity through a first pipeline; wherein, be equipped with first outlet on spherical chamber, spherical chamber and external environment are connected to the first outlet to discharge hot-fluid and allow the spherical chamber of waiting to pyrocondensation article to insert through first outlet.

Description

Reaction device for thermal shrinkage process
Technical Field
The present invention relates to a reaction apparatus, and more particularly, to a reaction apparatus for a thermal shrinkage process.
Background
An article to be heat-shrunk used in the heat-shrinking process generally comprises a heat-shrinking portion made of an insulating material and a conducting wire extending from the heat-shrinking portion, and when the heat-shrinking is performed, the heat-shrinking portion of the article to be heat-shrunk is generally required to be inserted into a reaction device, then the heat-shrinking portion is heated to a molten state through hot fluid, and then the heat-shrinking portion in the molten state is inserted into a mold with a desired shape for cooling and forming. However, in the existing reaction device, the temperature distribution around the heat-shrinkable part is usually uneven and difficult to control, so that a technician has to rotate the object to be heat-shrunk all the time, which is time-consuming and labor-consuming, has low working efficiency, and is difficult to obtain ideal effects.
Therefore, there is a need for a simple reaction device capable of forming a uniform and controllable temperature distribution, so as to improve the working efficiency of the thermal shrinkage process and reduce labor and time costs.
Disclosure of Invention
An object of embodiments of the present invention is to provide a reaction apparatus having a simple structure, which is capable of forming a uniform and controllable temperature distribution.
According to an aspect of the present invention, there is provided a reaction device for a heat-shrinking process, comprising: a first pipe provided with an inlet for receiving a hot fluid; and a heating device, wherein a spherical cavity is formed in the heating device, and hot fluid flows into the spherical cavity through a first pipeline; wherein, be equipped with first outlet on spherical chamber, spherical chamber and external environment are connected to the first outlet to discharge hot-fluid and allow the spherical chamber of waiting to pyrocondensation article to insert through first outlet.
According to an aspect of the invention, the heating device comprises: a spherical inner wall; and a spherical outer wall disposed to surround the spherical inner wall with a gap therebetween.
According to an aspect of the present invention, a through hole is provided in the spherical inner wall to discharge the thermal fluid flowing into the spherical inner wall into the gap; and a second outlet in the spherical outer wall to discharge the heated fluid in the gap to the external environment.
According to an aspect of the present invention, the reaction apparatus further comprises: a second conduit in communication with the second outlet to discharge the thermal fluid in the gap.
According to an aspect of the present invention, the reaction apparatus further comprises: a shield surrounding and spaced from the heating means and provided with a third outlet communicating the first outlet with the external environment.
According to one aspect of the invention, the first outlet is defined by two arc-shaped cut surfaces, which are respectively cut along two arcs on the spherical outer wall end to end with each other and are formed between the spherical inner wall and the spherical outer wall, the two arc-shaped cut surfaces being arranged gas-tight.
According to one aspect of the invention, the first duct is arranged in a straight line.
According to an aspect of the present invention, the reaction apparatus further comprises: a third conduit disposed in a ring shape having an axis of symmetry and connected to the spherical cavity on the axis of symmetry on opposite sides of the spherical cavity, the first conduit being connected to the third conduit along the axis of symmetry.
According to one aspect of the present invention, a plurality of sub-passages communicating the inlet of the first pipe and the spherical chamber are provided in the third pipe to send the thermal fluid into the spherical chamber.
According to one aspect of the invention, a plurality of sub-channels communicating the inlet and the spherical chamber are provided in the first conduit to deliver the thermal fluid into the spherical chamber.
According to one aspect of the invention, the angle α between the planes in which the two arc-shaped tangential planes lie is between 30 ° and 45 °.
According to one aspect of the invention, at least one of the planes in which the two arc-shaped tangential planes lie passes through the centre of the sphere.
Drawings
The invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic perspective view of a reaction apparatus according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic perspective view of the reaction apparatus of FIG. 1 provided with a second outlet and a plurality of through-holes;
FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2;
FIG. 4 is a schematic perspective view of the reaction apparatus of FIG. 2 equipped with a second pipe;
FIG. 5 is a schematic perspective view of the shrouded reaction apparatus of FIG. 4;
FIG. 6 is a schematic perspective view of the reaction apparatus of FIG. 2 equipped with a third tube;
FIG. 7 is a cross-sectional view taken along line VIII-VIII in FIG. 6; and is
Fig. 8 is a sectional view taken along line IX-IX in fig. 6.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
Fig. 1 is a schematic perspective view of a reaction apparatus 100 according to an exemplary embodiment of the present invention.
As shown in fig. 1, a reaction apparatus 100 for a heat-shrinking process according to an exemplary embodiment of the present invention includes a first pipe 1 provided with an inlet 11 for receiving a hot fluid; and a heating device 2, wherein a spherical cavity 20 is formed in the heating device 2, the hot fluid flows into the spherical cavity 20 through a first pipeline 1, a first outlet 3 is arranged on the spherical cavity 20, and the first outlet 3 is communicated with the spherical cavity 20 and the external environment so as to discharge the hot fluid and allow the article 4 to be heat-shrunk to be inserted into the spherical cavity 20 through the first outlet 3.
The article 4 to be heat-shrunk generally comprises a heat-shrink portion 41 made of insulating material and a conductor wire 42 extending from the heat-shrink portion. Because the cavity is set up spherically, so the hot-fluid that gets into in the cavity can be towards all directions by even reflection on the inner wall in cavity, and discharge to the external environment via first export 3, thereby form stable convection current and even stable temperature distribution around the article 4 of treating the pyrocondensation in spherical cavity 20, because the temperature distribution around the pyrocondensation portion of the article 4 of treating the pyrocondensation of inserting into spherical cavity 20 is even, need not to rotate the pyrocondensation portion so that the pyrocondensation portion is heated evenly, and the work efficiency is improved, the equipment or the manpower that are used for rotating the article 4 of treating the pyrocondensation has been saved, corresponding cost is reduced, pyrocondensation technology has been optimized.
FIG. 2 is a schematic perspective view of the reaction apparatus 100 of FIG. 1 provided with a second outlet 2121 and a plurality of through-holes 2111; FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2; FIG. 4 is a schematic perspective view of the reaction apparatus 100 of FIG. 2 equipped with the second conduit 6; fig. 5 is a schematic perspective view of the reaction apparatus 100 of fig. 4 equipped with the shield 7.
In one embodiment, as shown in fig. 2-5, the heating device 2 comprises: a spherical inner wall 211; and a spherical outer wall 212 arranged to surround the spherical inner wall 211, with a gap 213 between the spherical inner wall 211 and the spherical outer wall 212, so that the spherical outer wall 212 is not too hot due to the presence of the hot fluid in the spherical cavity 20, thereby avoiding scalding workers or damaging the article 4 to be heat-shrunk during use.
In one embodiment, as shown in fig. 2-5, a plurality of through holes 2111 are provided in the spherical inner wall 211 to discharge the thermal fluid flowing into the spherical inner wall 211 into the gap 213, and a second outlet 2121 is provided in the spherical outer wall 212 to discharge the thermal fluid in the gap 213 to the external environment, so that most of the thermal fluid in the spherical cavity 20 flows out from the second outlet 2121 through the through holes 2111, and a small portion of the thermal fluid in the spherical cavity 20 flows out from the first outlet 3, which makes it easier to form stable convection and uniform and stable temperature distribution around the article 4 to be heat-shrunk in the spherical cavity 20. Physical parameters such as the number, position, density, size and shape of the through holes 2111 are not limited to those shown in the drawing, and these physical parameters of the through holes 2111 may be adjusted according to actual conditions to obtain desired convection conditions and temperature distribution in the spherical chamber 20.
In one embodiment, as shown in fig. 4, the reaction apparatus 100 further includes a second pipe 6, the second pipe 6 is communicated with the second outlet 2121 to discharge the hot fluid in the gap 213, and the second pipe 6 can guide a direction in which the hot fluid flows out of the second outlet 2121.
In one embodiment, as shown in fig. 5, the reaction apparatus 100 further comprises: a shield 7 surrounding the heating means 2 and spaced from the heating means 2 and provided with a third outlet 71 communicating the first outlet 3 with the external environment. The hot fluid flows out of the second outlet 2121 on the spherical outer wall 212 through the gap 213 between the spherical inner wall 211 and the spherical outer wall 212, which may cause the spherical outer wall 212 to have too high a temperature to risk scalding workers or damaging the article 4 to be heat-shrunk. The shield 7 can prevent the worker or the article 4 to be heat-shrunk from directly contacting the spherical outer wall 212, thereby ensuring the safety of the worker or the article 4 to be heat-shrunk in the using process.
In one embodiment, as shown in fig. 2 to 5, the first outlet 3 is defined by two arc- shaped cut surfaces 214, 215, the two arc- shaped cut surfaces 214, 215 are respectively cut along two arcs 2122, 2123 of the spherical outer wall 212 connected end to end and are formed between the spherical inner wall 211 and the spherical outer wall 212, and the two arc- shaped cut surfaces 214, 215 are airtight to prevent the hot fluid from flowing out of the arc- shaped cut surfaces 214, 215 to the external environment, so as to avoid uneven and unstable temperature distribution caused by the air.
The angle α between the two planes of the two arc- shaped tangent planes 214 and 215 or the area of the first outlet 3 cannot be too large, otherwise, the pressure and the temperature are sharply reduced and unstable temperature distribution is caused at the first outlet 3, which is not favorable for heating the heat-shrinkable article 4, and the angle α or the area of the first outlet 3 should be set to be small, so that the temperature difference between the temperature at the inlet 11 of the first pipeline 1 and the temperature at the first outlet 3 is as small as possible, and the thermal efficiency of the reaction device 100 is improved; however, α or the area of first outlet 3 must not be too small, which would be detrimental to the insertion and extraction of article 4 to be heat-shrunk, and could also lead to a pressure and temperature accumulation in spherical chamber 20, liable to cause heating device 2 to explode in the event of untimely decompression and excessive temperatures. The angle alpha is typically set between 30 deg. and 45 deg. depending on the actual situation.
To facilitate the formation of the arc-shaped cut surfaces, at least one of the planes in which the two arc- shaped cut surfaces 214, 215 lie passes through the center O of the sphere. However, this is not restrictive, and the two arc- shaped cut surfaces 214 and 215 may be located in a plane that does not pass through the center O.
It should be understood, however, that the shape of the first outlet 3 is not limited to the illustrated shape, and that the first outlet 3 may take any shape that does not affect the heating, access and safety of the heating device 2 to the heat shrinkable articles 4.
In the above respective embodiments, as shown in fig. 1 to 5, the first pipe 1 is provided in a straight line shape, and the hot fluid flows into the spherical chamber 20 along the straight first pipe 1. The computer simulation results show that, thanks to the presence of the first outlet 3 and/or the second outlet 2121 and/or the third outlet 71 on the heating device 2, the pressure and temperature in the first conduit 1 are greater than those in the spherical chamber 20, and thanks to the fact that the hot fluid can be reflected uniformly on the inner wall of the chamber in all directions, the pressure distribution in the spherical chamber 20 is uniform, the temperature distribution near the spherical center O and the flow rate distribution of the hot fluid are more uniform, enabling the optimization of the heat-shrinking process.
FIG. 6 is a schematic perspective view of the reaction apparatus 100 of FIG. 2 equipped with the third conduit 5; FIG. 7 is a cross-sectional view taken along line VIII-VIII in FIG. 6; and fig. 8 is a sectional view taken along line IX-IX in fig. 6.
In one embodiment, as shown in fig. 6, the reaction apparatus 100 further comprises: third conduit 5, arranged in the shape of a ring having an axis of symmetry 51 and connected to spherical chamber 20 on axis of symmetry 51 on opposite sides of spherical chamber 20, first conduit 1 is connected to third conduit 5 along axis of symmetry 51. Since the first pipe 1 and the heating device 2 are located on the symmetry axis 51, the hot fluid from the first pipe 1 flows in the third pipe 5 to the spherical cavity 20 of the heating device 2 in two opposite directions, respectively, and the hot fluid from both sides of the spherical cavity 20 has the same flow rate and temperature, which is beneficial to form stable thermal convection and stable and uniform temperature distribution in the spherical cavity 20.
Under the condition that the impact pressure of the hot fluid on the article to be heat-shrinkable 4 is too large, the article to be heat-shrinkable 4 is difficult to stably position in the spherical cavity 20, so that the article to be heat-shrinkable 4 cannot be uniformly heated, and the heat-shrinkable process is not facilitated. In one embodiment, as shown in fig. 6-8, in order to reduce the impact pressure of the hot fluid on the article 4 to be heat-shrunk, a plurality of sub-channels 52 communicating the inlet 11 of the first conduit 1 and the spherical chamber 20 are provided in the third conduit 5 to deliver the hot fluid into the spherical chamber 20, as indicated by the arrows in fig. 8. The hot fluid then exits the heating device 2 via the through-hole 2111, the gap 213 between the spherical inner wall 211 and the spherical outer wall 212, the second outlet 2121, as described above. For similar reasons, in one embodiment, as shown in fig. 3, a plurality of sub-channels 12 communicating the inlet 11 and the spherical chamber 20 may also be provided in the first conduit 1 to deliver a thermal fluid into the spherical chamber 20. It should be understood that the number, size, cross-sectional shape and location of the sub-channels 12 and/or 52 in the first and/or third conduits 1 and 5 may be set according to actual needs to obtain a desired impact pressure of the hot fluid on the article 4 to be heat-shrunk.
The computer simulation results show that, since the first outlet 3 and/or the second outlet 2121 and/or the third outlet 71 are present on the heating device 2, the pressure and temperature in the first pipe 1 and the third pipe 5 are greater than the pressure and temperature in the spherical chamber 20, and since the third pipe 5 is annular with the axis of symmetry 51 and both the first pipe 1 and the heating device 2 are located on the axis of symmetry 51, the pressure and temperature distribution in the spherical chamber 20 and the flow rate distribution of the hot fluid are more uniform, and the temperature distribution is more uniform at a position closer to the spherical center O, it is easy to place the article to be heat-shrunk 4 in the spherical chamber 20 at a proper position for heat-shrinking, the reaction device 100 of simple structure according to the embodiment of the present invention can obtain a uniform and stable temperature distribution around the article to be heat-shrunk 4 inserted into the spherical chamber 20, high thermal efficiency, thereby optimizing the thermal shrinkage process and improving the working efficiency.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the invention is not to be limited to the exemplary embodiments set forth herein.

Claims (12)

1. A reaction device for a heat shrinking process, comprising:
a first pipe provided with an inlet for receiving a hot fluid; and
a heating device in which a spherical cavity is formed, a thermal fluid flowing into the spherical cavity via a first pipe;
wherein, be equipped with first outlet on spherical chamber, spherical chamber and external environment are connected to the first outlet to discharge hot-fluid and allow the spherical chamber of waiting to pyrocondensation article to insert through first outlet.
2. The reaction device of claim 1, wherein the heating device comprises:
a spherical inner wall; and
a spherical outer wall disposed around the spherical inner wall with a gap therebetween.
3. The reaction apparatus according to claim 2,
a through hole is formed in the spherical inner wall to discharge the hot fluid flowing into the spherical inner wall into the gap; and
a second outlet is provided in the spherical outer wall to discharge the hot fluid in the gap to the external environment.
4. The reaction device of claim 3, further comprising:
a second conduit in communication with the second outlet to discharge the thermal fluid in the gap.
5. The reaction device of any one of claims 1-4, further comprising: a shield surrounding and spaced from the heating means and provided with a third outlet communicating the first outlet with the external environment.
6. The reaction apparatus according to any one of claims 2 to 5,
the first outlet is defined by two arc-shaped cut surfaces which are respectively cut along two arcs on the spherical outer wall connected end to end with each other and are formed between the spherical inner wall and the spherical outer wall, and the two arc-shaped cut surfaces are arranged to be airtight.
7. The reactor apparatus as claimed in any one of claims 1 to 6, wherein the first pipe is provided in a straight line shape.
8. The reaction device of any one of claims 1-7, further comprising:
a third conduit disposed in a ring shape having an axis of symmetry and connected to the spherical cavity on the axis of symmetry on opposite sides of the spherical cavity, the first conduit being connected to the third conduit along the axis of symmetry.
9. The reaction apparatus according to claim 8, wherein a plurality of sub-passages communicating the inlet of the first pipe and the spherical chamber are provided in the third pipe to feed the hot fluid into the spherical chamber.
10. The reaction apparatus according to any one of claims 1 to 7, wherein a plurality of sub-passages communicating the inlet and the spherical chamber are provided in the first pipe to send the hot fluid into the spherical chamber.
11. The reactor device according to claim 6, wherein the angle α between the planes of the two arc-shaped tangential planes is between 30 ° and 45 °.
12. The reactor device according to claim 6 or 11, wherein at least one of the planes in which the two arc-shaped sections are located passes through the center of a sphere.
CN201910370486.0A 2019-05-05 2019-05-05 Reaction device for thermal shrinkage process Active CN111889032B (en)

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CN111889032B CN111889032B (en) 2023-04-07

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315581A (en) * 1976-07-29 1978-02-13 Nippon Telegr & Teleph Corp <Ntt> Heater for jointing of communication-cable housing
US4778948A (en) * 1983-08-04 1988-10-18 Raychem Limited Cable joint
CN203205762U (en) * 2013-04-29 2013-09-18 国家电网公司 Novel thermal-shrinkage device
CN204633234U (en) * 2015-06-10 2015-09-09 中国长江电力股份有限公司 Thermal shrinkage type power cable head Integral molding device for insoles
CN204674021U (en) * 2015-06-01 2015-09-30 成都平原尼普洛药业包装有限公司 A kind of combustion gas shrinkage apparatus for ampoule bottle packaging
CN206490382U (en) * 2017-01-20 2017-09-12 苏州沃尔兴电子科技有限公司 A kind of split type silicon rubber shrinkable tube
CN207747406U (en) * 2018-01-16 2018-08-21 无锡精科汽车配件有限公司 Comprehensive air-heater for electric wire heat-shrink tube
CN109510159A (en) * 2018-11-23 2019-03-22 上海晗普新材料科技有限公司 A kind of transparent pyrocondensation sealing cap

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315581A (en) * 1976-07-29 1978-02-13 Nippon Telegr & Teleph Corp <Ntt> Heater for jointing of communication-cable housing
US4778948A (en) * 1983-08-04 1988-10-18 Raychem Limited Cable joint
CN203205762U (en) * 2013-04-29 2013-09-18 国家电网公司 Novel thermal-shrinkage device
CN204674021U (en) * 2015-06-01 2015-09-30 成都平原尼普洛药业包装有限公司 A kind of combustion gas shrinkage apparatus for ampoule bottle packaging
CN204633234U (en) * 2015-06-10 2015-09-09 中国长江电力股份有限公司 Thermal shrinkage type power cable head Integral molding device for insoles
CN206490382U (en) * 2017-01-20 2017-09-12 苏州沃尔兴电子科技有限公司 A kind of split type silicon rubber shrinkable tube
CN207747406U (en) * 2018-01-16 2018-08-21 无锡精科汽车配件有限公司 Comprehensive air-heater for electric wire heat-shrink tube
CN109510159A (en) * 2018-11-23 2019-03-22 上海晗普新材料科技有限公司 A kind of transparent pyrocondensation sealing cap

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