CN102896763A - Method and device for cooling charge port of blade extrusion machine - Google Patents
Method and device for cooling charge port of blade extrusion machine Download PDFInfo
- Publication number
- CN102896763A CN102896763A CN2012103851961A CN201210385196A CN102896763A CN 102896763 A CN102896763 A CN 102896763A CN 2012103851961 A CN2012103851961 A CN 2012103851961A CN 201210385196 A CN201210385196 A CN 201210385196A CN 102896763 A CN102896763 A CN 102896763A
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- Prior art keywords
- condenser
- heat
- liquid
- transition sleeve
- cooling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
- B29C48/797—Cooling
Abstract
The invention relates to a method and a device for cooling the charge port of a blade extrusion machine. The method comprises the following steps of: connecting a charge transition sleeve having a passage with a condenser to form a closed space; filling a liquid-state substance with a low gasification point in the charge transition sleeve; bringing out heat in the case that the liquid-state substance absorbs heat and performs a phase change to become vapour; and transferring the heat to materials in a hopper via the condenser, liquefying the vapour in the condenser, and flowing the liquid back into the charge transition sleeve, so as to realize circulation cooling for the charge port. The cooling device comprises the charge transition sleeve, the condenser, a condensing tube for connecting the charge transition sleeve with the condenser, and the hopper. According to the invention, a gas medium enters into the condenser via the condensing tube which is connected with the upper part of the charge transition sleeve, and is liquefied to be a liquid in the condenser, and the liquid flows back into the charge transition sleeve via the condensing tube, thus realizing circulation cooling. Such a heat transferring mode in a manner of the latent heat of vaporization is higher in heat-flow density than a common heat transferring mode in a manner of a convection system; simultaneously, the heat of vaporization is recycled; and the method and the device have the characteristics of good heat exchange effect, low energy consumption, etc.
Description
Technical field
The present invention relates to a kind of energy-conservation cooling technical field of high polymer material plasticizing conveying equipment charging aperture, be specifically related to blade extruder charging aperture cooling means and device.
Technical background
Blade extruder is the polymer material molding process equipment that a kind of tensile deformation is controlled and had the positive conveyance characteristic, and plastifying the extrusion equipment difference with conventional screw is blade extruder just tentatively compacting, exhaust in flight blade unit I.Be stability and the raising exhaust performance of effectively controlling the plasticizing transport process, it is extremely important that the charging aperture of extruder is implemented effective cooling.
The cooling means of charging aperture mainly is air-cooled and water-cooled.Air-cooled certain passage recycling air blast that usually need to arrange in barrel or cooling cover blows air and cools off, and the general volume of air cooling system is larger, and cooling velocity is slower; Water-cooled is utilized logical recirculated water exactly, thereby utilizes flowing of water that heat is taken away the realization cooling.Relatively air-cooled, water-cooled has fast, little, the low cost and other advantages of cooling device volume of cooling velocity, but causes easily phenomenons such as being prone to fouling, corrosion in chilling, the water pipe and reduce cooling effect.
Air-cooled or flowing of water-cooling system medium all needs additionaling power for example blower fan or water pump, and pressure and the flow rate of cooling effectiveness and medium have very large relation simultaneously.Heat exchange energy is out recycled difficulty in addition, basically wastes, and capacity usage ratio is low.
Summary of the invention
The object of the invention is to solve the problem that polymer material molding equipment charging aperture cooling effectiveness is low, energy dissipation is high, blade extruder charging aperture cooling means and device are provided.The present invention utilizes low gasification point material evaporation endothermic, condensation heat release to realize the heat transmission, the heat transferred material is reached the purpose of preheating material in the cooling charging aperture by condenser.
Blade extruder charging aperture cooling means, its charging spacer shell with the tool path links to each other with condenser and is formed into enclosure space, at the in-built low gasification point liquid of the path of charging spacer shell, when liquid heat absorption becomes steam mutually heat is taken out of, then by condenser with the material in the heat transferred hopper and in condenser fluidized flow back into realizing the charging aperture circulating cooling in the material spacer shell passage.
Realize the device of above-mentioned cooling means, comprise condenser, charging spacer shell, condenser pipe and hopper, the gas vent of charging spacer shell is connected with an end of condenser by condenser pipe, the liquid inlet of charging spacer shell is connected with the other end of condenser by condenser pipe, condenser is installed in the hopper, and material is between hopper and condenser.
Further, be provided with path in the described charging spacer shell, path communicates with described gas vent and liquid inlet.
Further, low gasification point liquid is housed in the described path.
The present invention compares with existing cooling means and device, has following advantage:
1, higher than the thermaltransmission mode heat flow density of contracurrent system commonly used with latent heat of vaporization mode transferring heat, good effect of heat exchange;
2, because heat by the saturated vapor transmission, has high heat-transfer capability, near constant temperature process under the minimum temperature difference;
3, flowing of cooling procedure medium do not need external power, and energy consumption is low;
4, heat has obtained recyclingly, has improved the utilization rate of energy, good energy-conserving effect.
Description of drawings
Fig. 1 cooling device for feed inlet structural representation;
Fig. 2 is the blade extruder structural representation with cooling charging aperture.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples, but the scope of protection of present invention is not limited to the scope of embodiment statement.
With reference to figure 1, Fig. 2, plastify by blade feed unit I and a plurality of blade that the parts such as armature spindle 1, stator positioning sleeve 2, charging stator 3 baffle plates 4 are formed and to transport unit II overlapped in series and formed blade extruder.As shown in Figure 1, the cooling device for feed inlet of this extruder mainly is comprised of the charging spacer shell 5, condenser pipe 6 and the condenser 7 that are installed on the charging stator 3.Charging spacer shell 5 is fixedly connected with charging stator 3 among the blade feed unit I, and charging spacer shell 5 inside are provided with path, and low gasification point material (such as benzophenone) is housed in the path.Charging spacer shell 5 is connected and forms the space of sealing with the condenser 7 with bigger serface by condenser pipe 6.The gas vent of charging spacer shell 5 is connected with an end of condenser 7 by condenser pipe 6, and the liquid inlet of charging spacer shell 5 is connected with the other end of condenser 7 by condenser pipe 6, and condenser 7 is installed in the hopper 8, and material is between hopper 8 and condenser 7.
When the charging aperture temperature raise, the liquid endothermic gasification in charging spacer shell 5 passages was gas, entered into condenser 7 by condenser pipe 6 under the poor effect of gas and fluid density.Be liquefied as liquid under the cooling effect of the medium of gaseous state macromolecular material in condenser 7 and condenser 7 and hopper 8, liquid flows back in the path of charging aperture coolant jacket 5 by condenser pipe 6, so that the temperature of charging spacer shell 5 remains the boiling point of low gasification point, realize the cooling to charging aperture.Because cooling procedure is to finish and do not need additionaling power by the phase transformation of medium, the heat that exchanges in the cooling procedure is simultaneously absorbed by the material in the hopper, thereby has realized the cooling energy-efficient to charging aperture.
Claims (4)
1. blade extruder charging aperture cooling means, it is characterized in that charging spacer shell with the tool path links to each other with condenser is formed into enclosure space, at the in-built low gasification point liquid of the path of charging spacer shell, when liquid heat absorption becomes steam mutually heat is taken out of, then by condenser with the material in the heat transferred hopper and in condenser fluidized flow back into realizing the charging aperture circulating cooling in the material spacer shell passage.
2. realize the device of the described cooling means of claim 1, it is characterized in that comprising condenser (7), charging spacer shell (5), condenser pipe (6) and hopper (8), the gas vent of charging spacer shell (5) is connected with an end of condenser (7) by condenser pipe (6), the liquid inlet of charging spacer shell (5) is connected with the other end of condenser (7) by condenser pipe (6), condenser (7) is installed in the hopper (8), and material is between hopper (8) and condenser (7).
3. the device of described cooling means according to claim 2 is characterized in that being provided with path in the charging spacer shell, and path communicates with described gas vent and liquid inlet.
4. the device of described cooling means according to claim 3 is characterized in that being equipped with in the described path low gasification point liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385196.1A CN102896763B (en) | 2012-10-12 | 2012-10-12 | Blade extruder charging aperture cooling means and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385196.1A CN102896763B (en) | 2012-10-12 | 2012-10-12 | Blade extruder charging aperture cooling means and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102896763A true CN102896763A (en) | 2013-01-30 |
| CN102896763B CN102896763B (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210385196.1A Expired - Fee Related CN102896763B (en) | 2012-10-12 | 2012-10-12 | Blade extruder charging aperture cooling means and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102896763B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149308A (en) * | 2014-07-24 | 2014-11-19 | 大连理工大学 | Machine barrel structure of single-screw/double-screw extruder based on phase change heat transfer |
Citations (7)
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| CN1080601A (en) * | 1992-06-29 | 1994-01-12 | 张于峰 | Automobile cooling-air conditioning linkend system |
| CN1758180A (en) * | 2004-10-08 | 2006-04-12 | 陈欢 | Heat radiation cooling device for CPU chip |
| CN101183808A (en) * | 2007-11-16 | 2008-05-21 | 中国科学院电工研究所 | Stator structure of inner cooling type self-circulation vaporization cooling wind power generator |
| CN101961777A (en) * | 2010-10-15 | 2011-02-02 | 中信戴卡轮毂制造股份有限公司 | Aluminum-alloy wheel low pressure casting die heat pipe cooling heat transferring method |
| CN102107514A (en) * | 2009-12-29 | 2011-06-29 | 上海金发科技发展有限公司 | Feeding device for double-screw extruder for preventing material mixture from agglomerating |
| CN102510172A (en) * | 2011-11-21 | 2012-06-20 | 哈尔滨电机厂有限责任公司 | Secondary cooling system for hydraulic generator |
| CN203077598U (en) * | 2012-10-12 | 2013-07-24 | 华南理工大学 | Cooling device at feed inlet of blade extruder |
-
2012
- 2012-10-12 CN CN201210385196.1A patent/CN102896763B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080601A (en) * | 1992-06-29 | 1994-01-12 | 张于峰 | Automobile cooling-air conditioning linkend system |
| CN1758180A (en) * | 2004-10-08 | 2006-04-12 | 陈欢 | Heat radiation cooling device for CPU chip |
| CN101183808A (en) * | 2007-11-16 | 2008-05-21 | 中国科学院电工研究所 | Stator structure of inner cooling type self-circulation vaporization cooling wind power generator |
| CN102107514A (en) * | 2009-12-29 | 2011-06-29 | 上海金发科技发展有限公司 | Feeding device for double-screw extruder for preventing material mixture from agglomerating |
| CN101961777A (en) * | 2010-10-15 | 2011-02-02 | 中信戴卡轮毂制造股份有限公司 | Aluminum-alloy wheel low pressure casting die heat pipe cooling heat transferring method |
| CN102510172A (en) * | 2011-11-21 | 2012-06-20 | 哈尔滨电机厂有限责任公司 | Secondary cooling system for hydraulic generator |
| CN203077598U (en) * | 2012-10-12 | 2013-07-24 | 华南理工大学 | Cooling device at feed inlet of blade extruder |
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| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149308A (en) * | 2014-07-24 | 2014-11-19 | 大连理工大学 | Machine barrel structure of single-screw/double-screw extruder based on phase change heat transfer |
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| CN102896763B (en) | 2015-10-28 |
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