WO2023030549A1 - Ensemble tuyaux chauffants, rouleau chauffant de type tuyau à inclinaison irrégulière comprenant un ensemble tuyaux chauffants et procédé d'usinage associé - Google Patents

Ensemble tuyaux chauffants, rouleau chauffant de type tuyau à inclinaison irrégulière comprenant un ensemble tuyaux chauffants et procédé d'usinage associé Download PDF

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Publication number
WO2023030549A1
WO2023030549A1 PCT/CN2022/122135 CN2022122135W WO2023030549A1 WO 2023030549 A1 WO2023030549 A1 WO 2023030549A1 CN 2022122135 W CN2022122135 W CN 2022122135W WO 2023030549 A1 WO2023030549 A1 WO 2023030549A1
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curved surface
special
shaped inclined
heat
heat pipe
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PCT/CN2022/122135
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English (en)
Chinese (zh)
Inventor
周焕民
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江苏中杰澳新材料有限公司
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Publication of WO2023030549A1 publication Critical patent/WO2023030549A1/fr

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment

Definitions

  • the invention relates to the technical field of heat rollers for high-speed drafting of chemical fibers, in particular to a heat pipe assembly, a special-shaped inclined-tube type heat roller including the heat pipe assembly, and a processing method thereof.
  • the heating method of the drafting hot roller in the chemical fiber industry is to use electromagnetic induction heating.
  • the induction coil input with high-frequency current generates an alternating magnetic field to heat the roller body.
  • the heat lost due to fiber removal and air diffusion is an efficient direct heating method.
  • Chinese patent CN2258173Y discloses a multi-zone induction hot drafting roller, which is composed of a godet, a multi-zone induction coil, a multi-channel temperature measuring sensor, and a multi-channel temperature transmitter; ), the induction coils in zones 2-7 are selected to directly heat the roller body of the hot roller, and then the temperature of each zone detected by the temperature sensor is sent to the control system by a multi-channel temperature transmitter, so that the temperature of each measuring point is within the set temperature. Equilibrium is reached at the working temperature. It can make the temperature uniformity of the surface of the roller meet the requirement of ⁇ 1-2°C, and can be used in the industrial production of the spinning speed of 1000-6000m/min on the spinning-drawing combination machine for civilian yarn and industrial yarn.
  • the other is the steam jacket heat transfer method, which uses electromagnetic induction to heat the roller body, so that the liquid in the jacket is vaporized after being heated, and achieves the balance of the gas-liquid phase transition.
  • the temperature in the working area is guaranteed to be uniform by means of rapid heat transfer in the gas phase.
  • the heat pipe is arranged in a direction parallel to the central axis (horizontal heat pipe), and the heating method is the full-length heating method of the roller body, that is, the length of the induction coil is equivalent to the length of the roller body, the mass of the roller body is large, and the stress on the motor shaft is large. Length is limited.
  • the depth of induction heating has an inverse relationship with the frequency of alternating current, that is, the higher the frequency, the shallower the heating depth.
  • the induction heating heat source is inside the roller body. The heating of the heat medium liquid still needs to pass through the material of the roller body. heat transfer can be achieved.
  • the hot roller is made of steel, and the proportion of the iron core wound with the coil is also very large.
  • the mass of the roller has a linear relationship with the length of the roller body, but the stress on the motor shaft is less It is a square relationship, so the length of the roller body is greatly limited.
  • the invention patent CN105155006B discloses that the length of the heating section is controlled to be less than half of the axial length of the heating roller.
  • One end of the heat roller is closed, and the other end is punched with many inclined holes for heat pipes.
  • the root of each inclined hole for heat pipes is connected and sealed as a whole.
  • the length of the induction heating ferritic stainless steel sleeve of the hot roller is 30-45% of the total length of the roller body, the heating method is high-frequency electromagnetic heating, and the heating object is a liquid medium.
  • the heat pipe adopts the inclined hole design, and the angle of the inclined hole of the heat pipe is that the inclined hole at the B end of the heating section is close to the outside of the roller surface (large radius), and the A end is close to the inside of the roller surface (small radius).
  • the biggest benefit and advantage of the design of the inclined tube heat roller is that local high-frequency heating can be used, reducing the length of the heating section can simplify the high-frequency heating structure and reduce the weight of the heat roller, which is of great significance for improving the technology of the heat roller , but how to solve high-quality and efficient manufacturing of many heat pipe holes is still a major problem in production.
  • the purpose of the present invention is to overcome the deficiencies in the prior art, to provide a heat pipe assembly, a special-shaped inclined-tube type heat roller including a heat pipe assembly and a processing method thereof, in order to solve the difficulty in processing heat pipe heat rollers, especially the difficulty in batch processing question.
  • One of the cases is surrounded by a circular arc with a radius of Ra and a circular arc with a radius of Rb, and on the radii of different radial sections, the arcs with a radius of Ra are the same, and the radius Rb will vary with the position of the section It varies from person to person, and its changing trend is that the arc radius Rb1 of the tangent surface close to the heat roller motor end is always greater than the arc radius Rb2 of the tangent surface away from the heat roller motor end.
  • the inclination of the central axis of the body is in a consistent corresponding relationship.
  • the first curved surface and the second curved surface are machined first, and then the two components are closely fitted and assembled. It is welded; many axial grooves are processed on the bonding surface of the second curved surface, as a component of the special-shaped inclined pipe, and radial annular grooves are processed at different positions at both ends or in the middle to connect the above-mentioned special-shaped inclined pipe , this processing method avoids the shortcomings of low processing quality, difficult processing, and high processing cost when the usual heat pipe type heat roller is used to drill deep holes. It has the characteristics of simple processing and manufacturing, stable and reliable process, especially in the manufacture of gradient inclined holes. Under the circumstances, it shows the advantages of simple processing and stable performance.
  • the heat pipe assembly includes a plurality of special-shaped inclined tubes arranged axially and a radial annular groove connecting the plurality of special-shaped inclined tubes, and the radial section of each of the special-shaped inclined tubes includes the same axis
  • the first curved surface and the second curved surface of the taper, the axial taper is the slope of the special-shaped inclined pipe, the first curved surface and the second curved surface are connected to each other to form a special-shaped inclined pipe, and the inner surface of the first curved surface
  • the surface radius is Rb
  • the radius of the outer surface of the second curved surface corresponding to the first curved surface is Rb
  • the outer surface of the second curved surface is axially processed with a plurality of grooves with a radius of Ra.
  • each of the grooves is in the shape of a semicircle, an arc less than half a circle, or an arc greater than half and less than three quarters of a circle One of the arc shapes.
  • the radial annular grooves are arranged at two ends and/or in the middle of the outer surface of the second curved surface, and the number is 1-8.
  • the radial annular grooves are arranged at two ends and/or in the middle of the outer surface of the second curved surface, and the number is 2-4.
  • the heat pipe assembly wherein: the axial slope of the first curved surface and the second curved surface are the same; the axial slope of the contact surface of each of the first curved surface and the second curved surface The degree is 0.5°-2.5°.
  • each of the first curved surface and the second curved surface includes a low-slope section and a high-slope section, and the slope of the low-slope section is 0-0.5 °, the slope of the high slope section is 0.5°-2.5°.
  • the length of the low-slope section accounts for 20%-45% of the total length of the special-shaped inclined pipe.
  • a special-shaped inclined tube type heat roller including a heat pipe assembly, wherein: the heat roller includes a roller body, a heat pipe assembly is arranged in the roller body, a connecting taper sleeve is fixedly connected to the roller body, and a connecting taper sleeve is arranged on the roller body.
  • the motor shaft, the motor shaft is connected to the roller body through the connecting tapered sleeve, the motor shaft is provided with a connecting seat, the connecting seat is provided with an induction heating mechanism, one end of the connecting seat is connected to the shaft seat, and the shaft seat is connected to the motor,
  • the motor is connected with a temperature transmitter.
  • the special-shaped inclined tube type heat roller wherein: the roller body is made of steel or aluminum alloy, and when the roller body is made of aluminum alloy, a sleeve is arranged on the inner wall of the roller.
  • a processing method for a special-shaped inclined tube type heat roller comprising the following steps:
  • the processing of the special-shaped inclined tube is completed by a step-by-step process, that is, the first curved surface and the second curved surface are respectively completed first, and then bonded, spliced and welded.
  • the quality requirements of the special-shaped inclined tube Easy to achieve and low processing cost.
  • the radial distance of the special-shaped inclined tube can be reduced by about 1/4 compared with the circular tube, which is beneficial to the reduction of the heat roller body.
  • the wall thickness is of great benefit.
  • the heat pipe adopts the external processing method, which can easily carry out surface treatment in the hole, so that the heat pipe hole has a better finish, reduces the resistance of the heat medium liquid backflow, and can reduce
  • the slope of the heat pipe is also an effective way to reduce the wall thickness of the heat roller.
  • the test data shows that at the same speed, the heat pipe designed to overcome the resistance of the heat medium liquid backflow after the inner surface of the heat pipe is smoothed
  • the minimum slope can be reduced from 0.7° to below 0.5°, and the wall thickness can be reduced by at least 1.5mm.
  • FIG. 1 is a schematic diagram of a special-shaped inclined tube type heat roller in Example 1.
  • FIG. 1 is a schematic diagram of a special-shaped inclined tube type heat roller in Example 1.
  • Fig. 2 is a partial structural schematic diagram of the special-shaped inclined tube type heat roller of the present invention.
  • Fig. 3 is a schematic cross-sectional view of a special-shaped inclined tube.
  • Fig. 4 is a schematic diagram of a special-shaped inclined pipe formed by combining the first curved surface and the second curved surface.
  • Fig. 5 is a schematic diagram of distribution of inclined tubes in the radial section of the heat roller body.
  • Fig. 6 is a schematic diagram of the structure of the second curved portion in embodiment 2.
  • Fig. 7 is a schematic diagram of the structure of the first curved portion in embodiment 2.
  • Fig. 8 is a schematic diagram of the structure of the second curved portion in embodiment 3.
  • Fig. 9 is a schematic diagram of the structure of the first curved portion in embodiment 3.
  • the special-shaped inclined tube type heat roller includes a roller body 11, and a heat pipe assembly is arranged inside the roller body 11, and a connecting taper sleeve 15 is fixedly connected to the roller body 11, and the connecting taper sleeve 15
  • a motor shaft 16 is provided, and the motor shaft 16 is connected to the roller body 11 through a connecting taper sleeve 15.
  • a connecting seat 17 is arranged on the motor shaft 16, and an induction heating mechanism 14 is arranged on the connecting seat 17, and one end of the connecting seat 17 is connected to A shaft seat 20 , the shaft seat 20 is connected to the motor 18 , and the motor 18 is connected to the temperature transmitter 19 .
  • the roller body 11 is made of steel or aluminum alloy.
  • the inner wall of the roller body 11 is provided with a sleeve 13 .
  • the most important part of the above structure is the structure of the heat pipe assembly, which directly affects the manufacturing of the heat roller, the heat transfer effect and the temperature uniformity of the system.
  • the temperature of the roller surface is raised, but the method of drilling deep holes is adopted during processing.
  • the disadvantages are also obvious, that is, the processing of many heat pipe holes is difficult, the processing cost is high, and the wall thickness of the heat roller is also increased.
  • the uniform temperature effect of the roller is still obvious, which can meet the production process requirements of chemical fiber spinning.
  • the advantage of the inclined tube heat roller is that the heating section can be designed to be less than half of the length of the roller body, such as 1/3 of the length.
  • the heat medium liquid will quickly flow back and concentrate on the heating section near the motor end by the action of centrifugal force, far away from the motor.
  • the heat replenishment of the roller body at the end mainly depends on the transfer of heat medium steam through the heat pipe.
  • the present invention adopts a special-shaped oblique heat pipe design, and the side close to the heat source is a small-radius arc structure, and the side away from the heat source is a large-radius arc structure, which can reduce the radial heating distance of the heat medium liquid in the special-shaped heat pipe.
  • the processing method of the present invention can easily realize the processing and production of the inclined pipe, that is, the hypothetical shaped inclined pipe is divided into two parts: the first curved surface A and the second curved surface B, and the first curved surface A and the second curved surface B. Parts can be assembled by bonding to form a complete special-shaped inclined tube 1, and a circular groove with a radius of Ra is processed on the specified position of the second curved surface B, and at the same time, the first curved surface A can not be processed or processed.
  • the circular groove in the corresponding position of the second curved surface B, the first curved surface A and the second curved surface B are pasted and welded, and the processing of the special-shaped inclined tube 1 is completed.
  • This processing method can be called external processing of the heat pipe hole, which is important. On the one hand, due to the external processing method of the heat pipe hole, the surface treatment or smoothness of the inner surface of the heat pipe can be guaranteed.
  • the gradient heat pipe technology of the heat roller has been designed, such as CN111733468A, CN212335371U, PCT/CN2020/103331, which can reduce the wall thickness of the heat roller; in the past In the deep hole drilling process of the heat pipe, if the deep hole is drilled in one direction and the processing of the gradient heat pipe hole cannot be completed, it is necessary to drill holes with two gradients from both ends, but the treatment at the junction of the two gradients is one Difficult, for the high-speed rotating gradient heat pipe heat roller, if the processing of the gradient oblique hole adopts the method of punching, it is quite difficult, but it can be easily realized by adopting the processing technology outside the heat pipe hole of the present invention; the same method, First make the first curved surface A and the second curved surface B, there are two kinds of the same outer taper and inner taper at the corresponding positions of the first curved surface A and the second curved surface B, and then on
  • the heat pipe assembly includes a plurality of special-shaped inclined tubes 1 arranged in the axial direction and a radial annular groove 2 connecting the plurality of special-shaped inclined tubes, and the radial section of each of the special-shaped inclined tubes 1 includes
  • the radius of the inner surface of the first curved surface A is Rb
  • the radius of the outer surface of the second curved surface B corresponding to the first curved surface A is Rb
  • the outer surface of the second curved surface B is machined more axially.
  • a channel of radius Ra is
  • the special-shaped inclined tube is divided into two parts: the second curved surface B in Figure 6 and the first curved surface A in Figure 7, wherein the axial slope of the contact surface between the first curved surface A and the second curved surface B is 0.75 °, a circular groove with a radius of Ra is machined on the specified position of the second curved surface B, wherein the depth of the circular groove can exceed a semicircle.
  • the excess part can be processed into a straight shape.
  • A may not be processed or a circular groove corresponding to the position of the second curved surface B may be processed, and the first curved surface A and the second curved surface B are bonded and welded to complete the processing of the special-shaped inclined pipe 1 .
  • the anti-corrosion and surface smooth treatment of the inner surface of the special-shaped inclined tube 1 hole only needs to carry out anti-corrosion and smooth treatment on the processed channel, which belongs to the external treatment method and is easy to do in production.
  • the work efficiency is increased by 3 times, and the product qualification rate is increased by 50%.
  • the wall thickness of the roller body is reduced by 1.5mm.
  • the heat pipe assembly includes a plurality of special-shaped inclined tubes 1 arranged axially and a radial annular groove 2 connecting a plurality of special-shaped inclined tubes, and the radial direction of each of the special-shaped inclined tubes
  • the sections all include the first curved surface A and the second curved surface B with the same axial taper, and the axial taper is the slope of the special-shaped inclined pipe; the first curved surface A and the second curved surface B are connected to each other to form a special-shaped inclined pipe , the inner surface radius of the first curved surface A is Rb, and the outer surface radius of the second curved surface B corresponding to the first curved surface A is Rb, and the outer surface of the second curved surface B is axially machined Multiple channels of radius Ra.
  • the heat-resistant and non-deformable aluminum alloy A390 is used as the material of the roll body, and the first curved surface A and the second curved surface B are machined first, and the first curved surface A and the second curved surface B have two identical external tapers. and inner taper, wherein the slope of the low-slope section near the motor end is 0.2°, and its length accounts for 1/3 of the total length of the roller body, and the rest is a high-slope section, with a slope of 0.75°, and then on the second curved surface A circular arc-shaped groove of the design size is machined at the specified position on B, as shown in Figure 7.
  • the gradient heat pipe is obtained by bonding the first curved surface A and the second curved surface B together and welding them.
  • the special-shaped inclined tube type aluminum alloy hot roller processed according to the requirements of embodiment 3 a circle of magnetic conductive sleeve 13 is added to the inner surface of the roller body, which is used for the heat source of the induction heating hot roller, and its length is the same as that of the induction heating mechanism 14 (induction coil ) are equivalent, and all the heat rollers are assembled according to the requirements of Figure 1.
  • the assembled heat rollers rotate at a speed of 1000rpm, and the set temperature is 120°C.
  • the temperature difference between the four points is ⁇ 0.4°C (actual
  • the heat medium liquid will flow back to the proximal end of the roller body by centrifugal force
  • the heating section is heated, and the steam generated after heating diffuses to the far end of the roller body to achieve efficient heat transfer. Therefore, it has the advantages of high heat transfer efficiency, small resistance loss, compact structure, reliable operation and low maintenance costs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Induction Heating (AREA)

Abstract

L'invention concerne un ensemble tuyaux chauffants. L'ensemble tuyaux chauffants comprend une pluralité de tuyaux à inclinaison irrégulière (1) agencés dans une direction axiale, et une rainure annulaire radiale (2) en communication avec la pluralité des tuyaux à inclinaison irrégulière. La section radiale de chaque tuyau à inclinaison irrégulière comprend une première partie surface incurvée (A) et une seconde partie surface incurvée (B) qui comportent le même amincissement axial. L'amincissement axial constitue l'inclinaison des tuyaux à inclinaison irrégulière. La première partie surface incurvée et la seconde partie surface incurvée sont reliées l'une à l'autre pour former le tuyau à inclinaison irrégulière. Le rayon de la surface interne de la première partie surface incurvée est Rb, le rayon de la surface extérieure de la seconde partie surface incurvée au niveau de la position correspondante de la première partie surface incurvée est Rb, et la surface externe de la seconde partie surface incurvée est usinée axialement pour former une pluralité de canaux présentant un rayon Ra. L'invention concerne également un rouleau chauffant de type tuyau à inclinaison irrégulière. L'usinage de tuyaux à inclinaison irrégulière est réalisé au moyen d'un procédé étape par étape ; c'est-à-dire qu'une première partie surface incurvée et une seconde partie surface incurvée sont réalisées respectivement, et la première partie surface incurvée et la seconde partie surface incurvée sont ensuite fixées, épissées et soudées. Les exigences de qualité du tuyau à inclinaison irrégulière sont faciles à obtenir, et le coût d'usinage est faible.
PCT/CN2022/122135 2021-09-02 2022-09-28 Ensemble tuyaux chauffants, rouleau chauffant de type tuyau à inclinaison irrégulière comprenant un ensemble tuyaux chauffants et procédé d'usinage associé WO2023030549A1 (fr)

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CN202111025718.2 2021-09-02
CN202111025718.2A CN113638065B (zh) 2021-09-02 2021-09-02 热管组件、包括热管组件的异型斜管式热辊及其加工方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113638065B (zh) * 2021-09-02 2022-10-14 江苏中杰澳新材料有限公司 热管组件、包括热管组件的异型斜管式热辊及其加工方法

Citations (12)

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GB1152979A (en) * 1966-04-28 1969-05-21 Skandinaviska Apparatind A Heat-Exchange Roller and a method for the manufacture thereof
DE2249519A1 (de) * 1971-10-11 1973-04-19 Roy Frank Williamson Beheizte walze zur behandlung von textilen garnen
JPS6392747A (ja) * 1986-10-01 1988-04-23 帝人製機株式会社 熱媒入加熱ロ−ラ
CN1132552A (zh) * 1993-08-04 1996-10-02 因西尔科公司热部件部门 散热管及其制造方法和设备
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JPH11107096A (ja) * 1997-10-01 1999-04-20 Murata Mach Ltd 加熱ローラー
JP2000110045A (ja) * 1998-10-01 2000-04-18 Murata Mach Ltd ホットローラー
JP2000273737A (ja) * 1999-03-25 2000-10-03 Murata Mach Ltd 糸条加熱ローラ
CN209779059U (zh) * 2018-12-21 2019-12-13 上海金纬化纤机械制造有限公司 一种化纤纺丝用的热辊抽真空装置
CN111733468A (zh) * 2020-07-16 2020-10-02 无锡中力科技有限公司 一种高速旋转梯度热管式热辊及其加工方法
CN111733467A (zh) * 2020-07-16 2020-10-02 无锡中力科技有限公司 一种高速旋转铝合金热辊及其加工方法
CN113638065A (zh) * 2021-09-02 2021-11-12 江苏中杰澳新材料有限公司 热管组件、包括热管组件的异型斜管式热辊及其加工方法

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1152979A (en) * 1966-04-28 1969-05-21 Skandinaviska Apparatind A Heat-Exchange Roller and a method for the manufacture thereof
DE2249519A1 (de) * 1971-10-11 1973-04-19 Roy Frank Williamson Beheizte walze zur behandlung von textilen garnen
JPS6392747A (ja) * 1986-10-01 1988-04-23 帝人製機株式会社 熱媒入加熱ロ−ラ
CN1132552A (zh) * 1993-08-04 1996-10-02 因西尔科公司热部件部门 散热管及其制造方法和设备
CN2258173Y (zh) * 1996-02-05 1997-07-23 中国纺织科学研究院 多区感应式热牵伸辊
JPH11107096A (ja) * 1997-10-01 1999-04-20 Murata Mach Ltd 加熱ローラー
JP2000110045A (ja) * 1998-10-01 2000-04-18 Murata Mach Ltd ホットローラー
JP2000273737A (ja) * 1999-03-25 2000-10-03 Murata Mach Ltd 糸条加熱ローラ
CN209779059U (zh) * 2018-12-21 2019-12-13 上海金纬化纤机械制造有限公司 一种化纤纺丝用的热辊抽真空装置
CN111733468A (zh) * 2020-07-16 2020-10-02 无锡中力科技有限公司 一种高速旋转梯度热管式热辊及其加工方法
CN111733467A (zh) * 2020-07-16 2020-10-02 无锡中力科技有限公司 一种高速旋转铝合金热辊及其加工方法
CN113638065A (zh) * 2021-09-02 2021-11-12 江苏中杰澳新材料有限公司 热管组件、包括热管组件的异型斜管式热辊及其加工方法

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