CN103213290A - Hot oil type tubular heater - Google Patents
Hot oil type tubular heater Download PDFInfo
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- CN103213290A CN103213290A CN2013101467261A CN201310146726A CN103213290A CN 103213290 A CN103213290 A CN 103213290A CN 2013101467261 A CN2013101467261 A CN 2013101467261A CN 201310146726 A CN201310146726 A CN 201310146726A CN 103213290 A CN103213290 A CN 103213290A
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- tubular heater
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Abstract
The invention discloses a hot oil type tubular heater which comprises a tube shell, tube joints, leading-in tubes, return tubes, a heat medium and sensors, wherein the tube shell is in a jacket tube structure; an internally arranged axial inner tube is arranged in the middle; an outer tube wall and an inner tube are coaxially sheathed and both ends are hermetically connected with each other; the outer tube wall consists of a truncated cone and a cylinder; one end taking the inner tube as a beginning point is the small end of the truncated cone, and a beam segment of the cylinder at the other end is provided with a screw thread matched with the tube joints to form positioning installation; and annular inner tubes at the end surface of the beam segment of the tube shell are alternately and hermetically connected with the leading-in tubes and the return tubes at equal intervals. The heat medium forms a circular flow passage through the leading-in tubes and the return tubes, and the sensors are coaxially placed between any leading-in tube and adjacent return tube. The hot oil type tubular heater is simple in structure, quick and uniform to heat, so that no temperature difference exists between sizing material and alkali-free glass fiber inside a leading-in die cavity, and synchronous solidification of inner and outer layers is achieved. The hot oil type tubular heater is particularly suitable for producing epoxy pultrusion core rods with the diameters of 50 to 200mm.
Description
Technical field
The present invention relates to a kind of heater, particularly a kind of is the tubular heater of medium with the conduction oil, and this heater is used for the sizing material and the alkali-free glass fibre heating of production epoxy radicals pultrusion plug.
Background technology
Epoxy radicals pultrusion plug is a kind of composite insulating material, and this material also has intensity height, heat-resisting, cold-resistant except that good insulating properties are arranged, and characteristics such as mildew-resistant, protection against the tide, shock resistance have a wide range of applications in electric device.Along with the development of power industry and improving constantly of line voltage grade, supporting epoxy radicals pultrusion plug quality index has been proposed requirements at the higher level, the specification of demand is also increasing on the market.The epoxy radicals drawing and extruding bar is formulated by raw materials such as epoxy resin, alkali-free glass fibre, catalyst, and sizing material that will be mixed earlier during production and alkali-free glass fibre draw to mould, and then are heated to 160 ℃～200 ℃ heat cure moulding.The epoxy radicals pultrusion plug of the following specification of φ 130mm is little because of volume, can accomplish whole heating and curing synchronously under the prior art condition.And it is relatively large greater than the epoxy radicals pultrusion plug of φ 130mm because of volume, under the supporting heating condition of existing equipment, be difficult to accomplish the internal and external temperature unanimity, internal-external temperature difference must cause curing asynchronous, and the internal stress of Sheng Chenging easily causes crackle and causes product rejection thus.So the commodity epoxy radicals pultrusion plug that circulates on the current market only has the following specification of φ 130mm, does not have the above specification of φ 130mm.Some manufacturers of the industry once were used for radiothermics the production of big specification epoxy pultrusion plug, although this kind heating technique is effective.But radiothermics is applied in and has two large problems when epoxy radicals pultrusion plug is produced.Maximum problem is that electromagnetic wave pollutes, and it is healthy that the electromagnetic wave that heating process produces had both endangered the worker, and also communication, instrument, the electronic equipment to periphery has serious interference.Another problem is that corollary equipment is expensive, and the heating energy consumption is big, and high energy consumption must strengthen the production cost.Just owing to the problems referred to above objective reality, radiothermics is not suitable for the production of epoxy radicals pultrusion plug.
Summary of the invention
The present invention is primarily aimed at the deficiency that the existing supporting heater of extruding equipment can only be produced the following specification of φ 130mm, propose a kind of simple in structure, supporting easily, heat convenient, even, reliable hot oil type tubular heater.This heater assigns in the sizing material intake, sizing material that flows through along the heater inside and outside wall and alkali-free glass fibre are heated after draw to die cavity and solidify, this heating arrangement realizes that the product ectonexine solidifies synchronously, helps doing the epoxy radicals pultrusion plug production of φ 150mm～φ 200mm under same temperature conditions.
The present invention is achieved through the following technical solutions technical goal.
The hot oil type tubular heater, it comprises shell, pipe joint, ingress pipe, return duct, thermal medium and sensor.Improvements are: described shell is the jacket pipe structure, and built-in axially interior pipe is placed in the middle, and outer tube wall is tightly connected mutually with coaxial fit of interior pipe and two ends.Outer tube wall is made up of truncated cone and cylinder, one end with interior pipe be starting point be the truncated cone small end, the cylindrical bundle sections of the other end is provided with screw thread and cooperates the formation location and installation with pipe joint, manages equidistantly alternately be tightly connected ingress pipe and return duct in the bundle segment ring of shell outer tube wall.Described thermal medium is a conduction oil, and ingress pipe and return duct are formed thermal medium and circulated passage, coaxial placement sensor between any ingress pipe and adjacent reflow pipe.
In the said structure, the interior pipe of shell is internal diameter φ 10mm～φ 50mm round tube, and the tapering of outer tube wall truncated cone is 1: 4～1: 6.Be installed in totally 2～16 of ingress pipe in the shell and return ducts, the internal diameter of ingress pipe and return duct equates that ingress pipe is than backflow pipe range, and the end of ingress pipe is positioned at the truncated cone section inner chamber place of shell, and the end of return duct is positioned at shell bundle sections inner chamber place.Sensor is 0 ℃～300 ℃ a temperature sensor.
The present invention compared with prior art has following good effect:
1, tubular heater is simple in structure, easy to manufacture, the installation site is reliable;
2, tubular heater is among the sizing material and alkali-free glass fibre of configuration, and heating is quick, even, and energy consumption of unit product is 1/20～1/30 of a prior art only, and production cost is low, and is good in economic efficiency;
3, sizing material and the alkali-free glass fibre of introducing die cavity obtains heating under the uniform temp condition, the heating-up temperature unanimity, and the heat cure steady quality is particularly suitable for the epoxy radicals pultrusion plug production of specification between φ 150mm～φ 200mm;
4, do not produce problem of environmental pollution in the heating process, security is good, obvious social benefit.
Description of drawings
Fig. 1 is a structural profile schematic diagram of the present invention.
Fig. 2 is Fig. 1 right view.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Embodiment 1
Hot oil type tubular heater shown in Figure 1 is used for the production of epoxy radicals pultrusion plug, and it comprises shell 1, pipe joint 2, ingress pipe 3, return duct 4, thermal medium 5 and sensor 6.Described shell 1 is a kind of member of jacket pipe structure that is, built-in axially interior pipe 1.1 is placed in the middle, the outer tube wall main body is made up of truncated cone and cylinder, one end with interior pipe 1.1 be starting point be the truncated cone small end, the cylindrical bundle sections of the other end is provided with screw thread and cooperates with pipe joint 2 and form location and installation, equidistantly alternately be tightly connected 3 ingress pipes 3 and 3 return ducts 4 of pipe 1.1 in the bundle segment ring of shell 1 outer tube wall.Described thermal medium 5 is a conduction oil, 5 years temperature of thermal medium are to shell 1 heating, the ingress pipe 3 that shell 1 is tightly connected is alternately equidistantly arranged with return duct 4, ingress pipe 3 and return duct 4 bores equate, but be uneven in length, the end of ingress pipe 3 is positioned at the truncated cone section inner chamber place of shell 1, and the end of return duct 4 is positioned at shell 1 bundle joint end inner chamber place.Thermal medium 5 is incorporated into shell 1 inner chamber from ingress pipe 3, and from the output of return duct 4 equivalent, this loop structure makes shell 1 remain on the temperature that is heating and curing of setting always after heat exchange.For the accurate temperature that is heating and curing of control shell 1, the temperature sensor 6 of 0 ℃～300 ℃ of coaxial arrangements is exported the heating-up temperature information in real time by sensor 6 between any ingress pipe 3 and adjacent reflow pipe 4.Present embodiment is used for the epoxy radicals pultrusion plug manufacturing of φ 150mm, because of product specification big, it is many to consume sizing material and alkali-free glass fibre amount, and the sizing material intake of corollary equipment is a circular hole, so it is φ 18mm round tube that shell 1 built-in axially interior pipe 1.1 is made internal diameter, round tube helps alkali-free glass fibre to be passed through.The outer tube wall of shell 1 truncated cone is 1: 4 tapering, and sizing material mixes through drawing to die cavity with alkali-free glass fibre along shell 1 outer tube wall and 1.1 outputs of interior pipe.The technique effect that the present invention obtains is that sizing material and the no alkali fiber introduced in the die cavity are evenly heated.Solidify synchronously under the uniform temp condition, the epoxy radicals pultrusion plug inside after the curing does not have internal stress, so do not crack and gas hole defect good product quality and stable.Because the hot oil type tubular heater is simple in structure, heating is quick, even, and power consumption only is 1/20 of a prior art, so the present invention is particularly suitable for the production of big specification epoxy radicals pultrusion plug.
Embodiment 2
Present embodiment is used for the epoxy radicals pultrusion plug manufacturing of φ 170mm, because of product specification bigger than embodiment 1, the sizing material and the alkali-free glass fibre amount that consume are more, although the hot oil type tubular heater structure of adapted is identical with embodiment 1, but important technological parameters has been done adjustment, increase to φ 28mm as shell 1 built-in axially interior pipe 1.1 bores, the tapering of truncated cone is 1: 5, dispose 6 ingress pipes 3 and 6 return ducts 4, hot oil type tubular heater under this configuration is similar with embodiment 1 effect, and energy consumption only is 1/30 of a prior art.
Use the present invention and have good economic benefit and social benefit.
Present embodiment is used for the epoxy radicals pultrusion plug manufacturing of φ 200mm, because of product specification bigger than embodiment 1, the sizing material and the alkali-free glass fibre amount that consume are more, although the hot oil type tubular heater structure of adapted is identical with embodiment 1, but important technological parameters has been done adjustment, increase to φ 50mm as shell 1 built-in axially interior pipe 1.1 bores, the tapering of truncated cone is 1: 6, dispose 8 ingress pipes 3 and 8 return ducts 4, the hot oil type tubular heater under this configuration is similar with embodiment 1 effect.
Claims (5)
1. hot oil type tubular heater, it comprises shell (1), pipe joint (2), ingress pipe (3), return duct (4), thermal medium (5) and sensor (6); It is characterized in that: described shell (1) is the jacket pipe structure, built-in axially interior pipe (1.1) is placed in the middle, outer tube wall is tightly connected mutually with coaxial fit of interior pipe (1.1) and two ends, outer tube wall is made up of truncated cone and cylinder, one end with interior pipe (1.1) be starting point be the truncated cone small end, the cylindrical bundle sections of the other end is provided with screw thread and cooperates with pipe joint (2) and form location and installation, manages (1.1) equidistantly alternately be tightly connected ingress pipe (3) and return duct (4) the bundle segment ring of shell (1) outer tube wall in; Described thermal medium (5) is a conduction oil, and ingress pipe (3) and return duct (4) are formed thermal medium (5) and circulated passage, coaxial placement sensor (6) between any ingress pipe (3) and adjacent reflow pipe (4).
2. hot oil type tubular heater according to claim 1 is characterized in that: the interior pipe (1.1) of described shell (1) is internal diameter φ 10mm～φ 50mm round tube.
3. hot oil type tubular heater according to claim 1 is characterized in that: the tapering of described body (1) outer tube wall truncated cone is 1: 4～1: 6.
4. hot oil type tubular heater according to claim 1 is characterized in that: totally 2～16 of built-in ingress pipe of described body (1) (3) and return ducts (4); The internal diameter of ingress pipe (3) and return duct (4) equates that ingress pipe (3) is longer than return duct (4), and the end of ingress pipe (3) is positioned at the truncated cone section inner chamber place of shell (1), and the end of return duct (4) is positioned at shell (1) bundle sections inner chamber place.
5. hot oil type tubular heater according to claim 1 is characterized in that: described sensor (6) is 0 ℃～300 ℃ a temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146726.1A CN103213290B (en) | 2013-04-25 | 2013-04-25 | Hot oil type tubular heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146726.1A CN103213290B (en) | 2013-04-25 | 2013-04-25 | Hot oil type tubular heater |
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| Publication Number | Publication Date |
|---|---|
| CN103213290A true CN103213290A (en) | 2013-07-24 |
| CN103213290B CN103213290B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310146726.1A Active CN103213290B (en) | 2013-04-25 | 2013-04-25 | Hot oil type tubular heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110111953A (en) * | 2019-06-14 | 2019-08-09 | 中船重工（葫芦岛）特种电缆有限责任公司 | The online solidification equipment of water repellent electric cable |
| CN111804521A (en) * | 2020-07-28 | 2020-10-23 | 曾峰 | Insulating paper processing is with gluing stick |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1387933A (en) * | 1972-01-28 | 1975-03-19 | Siemens Ag | Polyethylene covered conductors |
| US5198622A (en) * | 1989-10-13 | 1993-03-30 | Asea Brown Boveri Ab | Condenser body for the field control of the connection of a transformer bushing |
| CN2769752Y (en) * | 2005-01-21 | 2006-04-05 | 清华大学 | Heat conducting oil heating device |
| CN201332512Y (en) * | 2008-12-29 | 2009-10-21 | 成都市兴岷江电热电器有限责任公司 | Explosion-proof corrosion-resistant electric heater for oil tank |
| CN203282711U (en) * | 2013-04-25 | 2013-11-13 | 泰州华东绝缘材料有限公司 | Hot oil-type tubular heater |
-
2013
- 2013-04-25 CN CN201310146726.1A patent/CN103213290B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1387933A (en) * | 1972-01-28 | 1975-03-19 | Siemens Ag | Polyethylene covered conductors |
| US5198622A (en) * | 1989-10-13 | 1993-03-30 | Asea Brown Boveri Ab | Condenser body for the field control of the connection of a transformer bushing |
| CN2769752Y (en) * | 2005-01-21 | 2006-04-05 | 清华大学 | Heat conducting oil heating device |
| CN201332512Y (en) * | 2008-12-29 | 2009-10-21 | 成都市兴岷江电热电器有限责任公司 | Explosion-proof corrosion-resistant electric heater for oil tank |
| CN203282711U (en) * | 2013-04-25 | 2013-11-13 | 泰州华东绝缘材料有限公司 | Hot oil-type tubular heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110111953A (en) * | 2019-06-14 | 2019-08-09 | 中船重工（葫芦岛）特种电缆有限责任公司 | The online solidification equipment of water repellent electric cable |
| CN111804521A (en) * | 2020-07-28 | 2020-10-23 | 曾峰 | Insulating paper processing is with gluing stick |
| CN111804521B (en) * | 2020-07-28 | 2021-05-14 | 苏州绿萃筑信息科技有限公司 | Insulating paper processing is with gluing stick |
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| CN103213290B (en) | 2015-04-08 |
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