CN201609722U - Indirect cooling sleeve and cooling system - Google Patents
Indirect cooling sleeve and cooling system Download PDFInfo
- Publication number
- CN201609722U CN201609722U CN2009202496970U CN200920249697U CN201609722U CN 201609722 U CN201609722 U CN 201609722U CN 2009202496970 U CN2009202496970 U CN 2009202496970U CN 200920249697 U CN200920249697 U CN 200920249697U CN 201609722 U CN201609722 U CN 201609722U
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- cooling
- extrudate
- sleeve
- annular hollow
- cooling fluid
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Abstract
The embodiment of the utility model provides an indirect cooling sleeve and a cooling system. The indirect cooling sleeve comprises an annular hollow sleeve, wherein the inner wall of the annular hollow sleeve is formed into a cooling passageway for cooling an extrudate, a containing cavity is arranged between the outer wall and the inner wall of the annular hollow sleeve, and the containing cavity is internally provided with cooling liquid for cooling the extrudate. As the inner wall of the annular hollow sleeve is slightly contacted with the extrudate, the cooling liquid in the extrudate and the cooling liquid in the annular hollow sleeve perform thermal transmission, so that the temperature of the extrudate is reduced rapidly and the cooling speed of the extrudate is improved, thereby reducing the growth tendency of metal crystalline grains in the extrudate, lightening the high-temperature oxidation degree, and being good for obtaining the high-quality extrudate.
Description
Technical field
The utility model embodiment relates to cooling technology, particularly a kind of indirect cooling sleeve and cooling system.
Background technology
Shape in use, for the requirement of be suitable for using, need be by extruder with the shape extrusion modling.When extruder carries out extrusion modling to shape, shape can produce a large amount of heats in extrusion process, the temperature of the shape that extruder squeezes out is raise, cause shape surface over oxidation easily, extrusion defects such as internal crystallization tissue odds is even descend metallicity or form waste product because of surperficial over oxidation.
In the prior art, extruder adopts the compressed air cooling usually when extruding aluminium alloy or magnesium alloy.For example, adopt row's formula fan blowing cooling means, by row's formula fan after extruding aluminium alloy or the surperficial blowing cold air of magnesium alloy, thereby aluminium alloy or magnesium alloy are cooled.
And row's formula fan blowing cooling means of the prior art, can only guarantee lower extrusion speed, in the extrusion process of production of aluminium alloy or magnesium alloy, often because instantaneous extrusion speed is too fast, the aluminium alloy or the magnesium alloy that cause squeezing out can not be cooled off fast, the situation of over oxidation even burning occurs, the speed of cool metal section bar is slower in the prior art.
The utility model content
The utility model embodiment provides a kind of indirect cooling sleeve and cooling system, to improve the cooling velocity of extrudate.
The utility model embodiment provides a kind of indirect cooling sleeve, comprising:
One annular hollow sleeve, the inwall of described annular hollow sleeve is formed for cooling off the cooling duct of extrudate, be provided with containing cavity between the outer wall of described annular hollow sleeve and the described inwall, be provided with in the described containing cavity and be used to cool off the cooling fluid that described extrudate is used.
This annular hollow sleeve is outer can be provided with support set;
The material of this annular hollow sleeve can be copper, and the material of this support set can be stainless steel.
The utility model embodiment provides a kind of cooling system, comprising:
The cooling fluid storage device is used to hold cooling fluid;
Air compressor is connected with described cooling fluid storage device, by preparation compressed air the cooling fluid in the described cooling fluid storage device is discharged;
Indirect cooling sleeve is connected with described cooling fluid storage device, is used to receive the cooling fluid that described air compressor pressure goes out and uses described cooling fluid cooling extrudate; Wherein, described indirect cooling sleeve adopts above-mentioned indirect cooling sleeve.
Indirect cooling sleeve that utility model embodiment provides and system by annular hollow sleeve is set, make the cooling fluid in extrudate and the annular hollow sleeve carry out heat transmission, make the extrudate fast cooling improve the cooling velocity of extrudate.
Description of drawings
Fig. 1 is the structural representation of the utility model indirect cooling sleeve embodiment;
Fig. 2 is the structural representation of the utility model cooling system embodiment.
The specific embodiment
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1 is the structural representation of the utility model indirect cooling sleeve embodiment.As shown in Figure 1, the present embodiment indirect cooling sleeve comprises: annular hollow sleeve 1, and wherein, annular hollow sleeve 1 concrete structure is described below:
The cooling duct that the inwall 12 of annular hollow sleeve 1 is formed for cooling off extrudate 2 is provided with containing cavity 15 between the outer wall 11 of annular hollow sleeve 1 and the inwall 12, is provided with the cooling fluid that is used to cool off extrudate 2 usefulness in this containing cavity 15.
Cooling fluid in the present embodiment can be example with the liquid nitrogen, and the utility model is described, because nitrogen is the maximum composition of content in the atmosphere, liquid nitrogen is as the byproduct of system oxygen industry, and it is very wide to originate.Use liquid nitrogen as cooling media, directly evaporate into gas after the application and turn back in the atmosphere, without any pollutant.The outlet of the import of the cooling duct of annular hollow sleeve 1 and extruder is docking together in the present embodiment, thereby after extrudate 2 is extruded from extruder, can enter immediately in the annular hollow sleeve 1 and cool off.When extruder is extruded extrudate 2 from the outlet of extruder after, the extrudate 2 of high temperature will enter in the cooling duct of annular hollow sleeve 1 immediately.Because just the temperature of the extrudate of extruding from extruder 2 is very high, cools off if extrudate 2 is directly put into liquid nitrogen, may cause extrudate 2 and liquid nitrogen generation chemical reaction, thereby can reduce the quality of extrudate 2.In the present embodiment, after extrudate 2 enters into the cooling duct, the mode that liquid nitrogen in extrudate 2 and the containing cavity 15 adopts heat to transmit by the liquid nitrogen of inwall 12 with the heat transferred low temperature of extrudate 2, has realized that liquid nitrogen cools off indirectly to extrudate 2.
Particularly, the profile of annular hollow sleeve 1 can be cylindrical, also can be a cube cylinder, and the utility model is not done qualification to the outer shape of annular hollow sleeve 1.Form the containing cavity 15 of sealing between the outer wall 11 of annular hollow sleeve 1 and the inwall 12, can hold liquid nitrogen in this containing cavity 15 and be used for cooling off extrudate 2.Inwall 12 forms the cooling duct, is used to supply with extrudate 2 and therefrom passes, and the extrudate 2 that passes is cooled off.Wherein, the appearance and size of the appearance and size of cooling duct and extrudate 2 is complementary, thereby makes the heat of extrudate 2 pass to liquid nitrogen by inwall 12 fast.Wherein, the material of annular hollow sleeve 1 can be copper because copper has good heat transfer property, can be fast with the heat transferred liquid nitrogen of extrudate 2.The cooling procedure particularly of annular hollow sleeve 1 is: extrudate 2 is in passing the process of cooling duct, the heat of extrudate 2 is passed to liquid nitrogen in the containing cavity 15 by inwall 12, by the heat of liquid nitrogen fast Absorption extrudate 2, thereby the temperature of extrudate 2 is descended fast.
The indirect cooling sleeve that present embodiment provides carries out heat transmission by liquid nitrogen in the annular hollow sleeve and extrudate, makes the extrudate fast cooling, has improved the cooling velocity of extrudate.The mode that annular hollow sleeve and extrudate adopt heat to transmit is lowered the temperature, and the high temperature extrudate of firm extrusion modling is not directly contacted with liquid nitrogen, can reduce the probability of high temperature extrudate and liquid nitrogen or other material generation chemical reactions.The material of annular hollow sleeve adopts copper, more helps accelerating the speed that the heat between extrudate and the liquid nitrogen transmits, and reduces the temperature of extrudate faster, more helps improving the cooling velocity of extrudate.The appearance and size by the cooling duct is set and the appearance and size of extrudate are complementary, and make the heat of extrudate pass to liquid nitrogen by inwall fast, help improving the cooling velocity of extrudate.
Based on technique scheme, optionally, in the present embodiment indirect cooling sleeve, the outer wall 11 of annular hollow sleeve 1 is provided with the inlet 13 that is used for injecting cooling fluid in containing cavity 15, also is provided with the outlet 14 that is used to discharge cooling fluid.Particularly, liquid nitrogen injects in the containing cavity 15 through inlet 13, and liquid nitrogen in the containing cavity 15 and extrudate 2 carry out heat transmission, and extrudate 2 is lowered the temperature, and last liquid nitrogen is discharged by outlet 14.
The indirect cooling sleeve that present embodiment provides can be injected into liquid nitrogen in the annular hollow sleeve easily by the inlet and the outlet of liquid nitrogen are set on annular hollow sleeve outer wall, and used liquid nitrogen can be discharged easily.
Based on technique scheme, optionally, annular hollow sleeve 1 is outside equipped with support set (not shown).Particularly, because annular hollow sleeve 1 is copper, therefore, the intensity of annular hollow sleeve 1 is lower.In order to prevent that annular hollow sleeve 1 from being damaged by external items, at annular hollow sleeve 1 outside need support set being set, to be used for protection fixing, helps reducing liquid nitrogen generation leakage phenomenon in the annular hollow sleeve 1.Simultaneously, support set also helps the liquid nitrogen and the external environment that reduce in the annular hollow sleeve 1 and carries out heat exchange, has effectively kept the temperature of the liquid nitrogen in the annular hollow sleeve 1.For liquid nitrogen and external environment in the annular hollow sleeve 1 of more effective minimizing are carried out heat exchange, the low-temperature condition of the liquid nitrogen in the annular hollow sleeve 1 of more effective maintenance, can be outside equipped with heat-insulation layer at annular hollow sleeve 1, make liquid nitrogen effective isolation in external environment and the annular hollow sleeve 1 by heat-insulation layer, reduce the influence of external environment liquid nitrogen.
In the present embodiment indirect cooling sleeve,, can effectively protect annular hollow sleeve not to be damaged, and help installing and fixing of annular hollow sleeve, simultaneously, the liquid nitrogen in the annular hollow sleeve be played insulation by being outside equipped with support set at annular hollow sleeve.By outside annular hollow sleeve, heat-insulation layer being set, the cooling fluid and the external environment that can effectively reduce in the annular hollow sleeve are carried out heat transmission, heat-insulation layer can play insulation effect to liquid nitrogen, keeps the lower temperature of liquid nitrogen, more helps reducing fast the temperature of extrudate.
Fig. 2 is the structural representation of the utility model cooling system embodiment.As shown in Figure 2, the present embodiment cooling system comprises: cooling fluid storage device, air compressor 202 and indirect cooling sleeve 203, wherein the cooling fluid storage device is connected with indirect cooling sleeve 203 with air compressor 202 respectively.
The cooling fluid storage device is used to hold cooling fluid.Cooling fluid storage device in the present embodiment can hold liquid nitrogen or water as cooling fluid.The cooling fluid storage device can be specially Dewar bottle group 201 in parallel, and wherein, Dewar bottle group 201 in parallel is conventional commercial Pyrex Dewar bottle, and the triplets parallel connection is used for containing cooling fluid, for example, and liquid nitrogen.
The utility model cooling system prepares compressed air by air compressor, and by compressed air being imported in the Dewar bottle group in parallel, in the input of the liquid nitrogen in the Dewar bottle group in parallel indirect cooling sleeve, make indirect cooling sleeve utilize liquid nitrogen, improved the cooling velocity of extrudate the extrudate fast cooling.
Based on technique scheme, optionally, the present embodiment cooling system comprises control device, and control device is electrically connected with air compressor 202 and cooling fluid storage device respectively, is used to control the opening and closing of air compressor 202 and cooling fluid storage device.Particularly, control device can be central control board 204, central control board 204 is by connecting the Pressure gauge 207 that is arranged on Dewar bottle group 201 in parallel and the air compressor 202 respectively, realize the automatic injection and the supply of control liquid nitrogen, promptly air pressure is reduced to critical value gradually in the Dewar bottle of working in the Dewar bottle group 201 in parallel, central control board 204 starts the liquid nitrogen fill systems, by other Dewar bottle of Dewar bottle group in parallel 201 Dewar bottle in the work is carried out liquid nitrogen and replenishes; Central control board 204 is arranged on valve 206 on Dewar bottle group 201 in parallel and the air compressor 202 by control, and the automatic initial sum of control output liquid nitrogen stops, and the output quantity by the control liquid nitrogen, realizes the automatic control of intensity of cooling.
The utility model cooling system can be realized the automation control of cooling system by control device control air compressor and Dewar bottle group in parallel, conveniently extrudate is cooled off.
Based on technique scheme, optionally, the present embodiment cooling system comprises device for monitoring temperature, and this device for monitoring temperature is electrically connected with control device, is used to detect the temperature of the extrudate of extruding at the extruder outlet place.Particularly, device for monitoring temperature can be temperature monitor 208, after temperature monitor 208 monitors the temperature of the extrudate of extruding at the extruder outlet place 205, temperature signal is fed back to central control board 204, and central control board 204 is controlled the startup of Dewar bottle group 201 in parallel and air compressor 202 according to the temperature signal that receives and is closed.After extruding finished, temperature monitor 208 sent temperature feedback signal notice central control board 204, made central control board 204 cut off the supply of liquid nitrogen.
The utility model cooling system is by the temperature of device for monitoring temperature monitoring extrudate, and temperature signal is fed back to control device, makes the operation of control device according to temperature signal control cooling system, improved the cooling velocity of extrudate.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. an indirect cooling sleeve is characterized in that, comprising:
One annular hollow sleeve, the inwall of described annular hollow sleeve is formed for cooling off the cooling duct of extrudate, be provided with containing cavity between the outer wall of described annular hollow sleeve and the described inwall, be provided with in the described containing cavity and be used to cool off the cooling fluid that described extrudate is used.
2. indirect cooling sleeve according to claim 1 is characterized in that:
The outer wall of described annular hollow sleeve is provided with the inlet that is used for injecting cooling fluid in described containing cavity, also is provided with the outlet that is used to discharge cooling fluid.
3. indirect cooling sleeve according to claim 1 and 2 is characterized in that:
Described annular hollow sleeve is outside equipped with support set.
4. indirect cooling sleeve according to claim 1 is characterized in that:
Described annular hollow sleeve outer setting has heat-insulation layer.
5. indirect cooling sleeve according to claim 1 is characterized in that:
Described cooling duct, promptly the appearance and size of the shape and size of hollow sleeve inwall and described extrudate is complementary.
6. indirect cooling sleeve according to claim 3 is characterized in that:
The material of described annular hollow sleeve is a copper, and the material of described support set is a stainless steel.
7. cooling system comprises:
The cooling fluid storage device is used to hold cooling fluid;
Air compressor is connected with described cooling fluid storage device, by preparation compressed air the cooling fluid in the described cooling fluid storage device is discharged;
Indirect cooling sleeve is connected with described cooling fluid storage device, is used to receive the cooling fluid that described air compressor pressure goes out and uses described cooling fluid cooling extrudate; It is characterized in that described indirect cooling sleeve adopts as the arbitrary described indirect cooling sleeve of claim 1 to 6.
8. cooling system according to claim 7 is characterized in that, also comprises:
Control device is electrically connected with described air compressor and described cooling fluid storage device respectively, is used to control the opening and closing of described air compressor and described cooling fluid storage device.
9. according to claim 7 or 8 described cooling systems, it is characterized in that, also comprise:
Device for monitoring temperature is electrically connected with described control device, is used to detect the temperature of the described extrudate of extruding at the extruder outlet place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202496970U CN201609722U (en) | 2009-11-04 | 2009-11-04 | Indirect cooling sleeve and cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202496970U CN201609722U (en) | 2009-11-04 | 2009-11-04 | Indirect cooling sleeve and cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201609722U true CN201609722U (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202496970U Expired - Lifetime CN201609722U (en) | 2009-11-04 | 2009-11-04 | Indirect cooling sleeve and cooling system |
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| CN (1) | CN201609722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526005A (en) * | 2013-10-22 | 2014-01-22 | 中联重科股份有限公司渭南分公司 | Thermal treatment workpiece positioning system |
-
2009
- 2009-11-04 CN CN2009202496970U patent/CN201609722U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526005A (en) * | 2013-10-22 | 2014-01-22 | 中联重科股份有限公司渭南分公司 | Thermal treatment workpiece positioning system |
| CN103526005B (en) * | 2013-10-22 | 2015-12-02 | 中联重科股份有限公司渭南分公司 | Heat treated part station-keeping system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |
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| CX01 | Expiry of patent term |