CN104549785A - Refrigerated centrifuge separation chamber with evaporation coil - Google Patents
Refrigerated centrifuge separation chamber with evaporation coil Download PDFInfo
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- CN104549785A CN104549785A CN201410857303.5A CN201410857303A CN104549785A CN 104549785 A CN104549785 A CN 104549785A CN 201410857303 A CN201410857303 A CN 201410857303A CN 104549785 A CN104549785 A CN 104549785A
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Abstract
The invention discloses a refrigerated centrifuge separation chamber with a evaporation coil; the refrigerated centrifuge separation chamber comprises a separation chamber, a heat transferring tube and a heat exchange medium; the heat transferring tube is coiled outside the separation chamber; the heat transferring tube is of a hollow structure and is internally filled with a refrigerant; and the heat exchange medium is arranged outside the heat transferring tube. Melted tin is used as a filling material between a copper tube and a stainless steel chamber. The melting point of the tin is lower and is only 232 degrees centigrade; the melting point of copper is 1,084 degrees centigrade, and that of stainless steel is higher and is more than 1,400 degrees centigrade; the copper tube and the stainless steel are not damaged during tin soldering. The tin has better heat conductivity and the heat conductivity coefficient is 62 W/m.K, so that the heat exchange area between the copper tube and the stainless steel chamber is increased effectively, the copper tube and the chamber can be fixed by means of the melted tin to realize ideal heat exchange effect; and the heat in the separation chamber is transferred to the refrigerant via the stainless steel chamber, the melted tin and the copper tube, so that the purpose of rapidly reducing the temperature of the chamber can be achieved.
Description
Technical field
The present invention makes for the centrifugal chamber casing of frozen type centrifuge, and particularly a kind of refrigerated centrifuge with evaporation coil is separated cavity.
Background technology
The sample be separated in present centrifuge, is loaded in along with rotary head High Rotation Speed in rotary head, and because rotary head and windage produce a large amount of heats, the temperature causing rotary head, sample and be separated cavity rises rapidly.And many samples have higher requirements for residing environment temperature, this carries out cooling process with regard to needing while high-speed separation.Adopt around the evaporimeter of copper pipe as refrigeration system outside cavity now mostly, the frictional heat produced when taking away rotary head High Rotation Speed.But because copper pipe is cylindrical, directly around being that columniform chamber outer wall only has little contact heat-exchanging area equally, cause heat transfer effect not good, refrigerant system efficiency is on the low side, and is easy between copper pipe and cavity get loose.Some employing heat-conducting silicone greases or heat-conducting glue are filled between copper pipe and chamber outer wall, although can fix copper pipe and cavity well, the thermal conductivity factor of heat-conducting silicone grease or heat-conducting glue is but very low, between 1W/mK ~ 5W/mK.So just causing will by increasing heat exchange area or reducing evaporating temperature to increase the temperature difference to reach required heat exchange effect.
Summary of the invention
The object of the present invention is to provide a kind of electromotion focusing mechanism solving the not good problem of heat-conducting effect between copper pipe and stainless steel cavity.
For solving the problems of the technologies described above, the refrigerated centrifuge of band evaporation coil of the present invention is separated cavity, comprising: be separated cavity; Heat-transfer pipe, described heat-transfer pipe winding is in the outside of described separation cavity, and described heat-transfer pipe is hollow structure, in described heat-transfer pipe, be filled with refrigerant; Heat exchange medium, described heat exchange medium is arranged on the outside of described heat-transfer pipe.
The material of described separation cavity is stainless steel.The material of described heat-transfer pipe is red copper.The material of described heat exchange medium is molten tin.
The refrigerated centrifuge of band evaporation coil of the present invention is separated cavity and adopts molten tin as the packing material between copper pipe and stainless steel cavity.Because the fusing point of tin is lower, only have 232 DEG C, and the fusing point of red copper is 1084 DEG C, stainless fusing point is higher, more than 1400 DEG C, can not destroy copper pipe and stainless steel during molten tin.And the heat conductivility of tin is better, thermal conductivity factor is 62W/mK, so both effectively increase the heat exchange area between copper pipe and stainless steel cavity, can lean on again molten tin that copper pipe and cavity are fixed, reach desirable heat transfer effect, make the heat in separation cavity be delivered in refrigerant take away by stainless steel cavity, molten tin, copper pipe, reach the object reducing rapidly cavity temperature.
Accompanying drawing explanation
Fig. 1 is the refrigerated centrifuge disengagement chamber body structure schematic diagram of band evaporation coil of the present invention.
The refrigerated centrifuge of band evaporation coil of the present invention is separated description of reference numerals in cavity accompanying drawing:
1-stainless steel is separated cavity 2-copper tube 3-and melts tin
4-refrigerant
Detailed description of the invention
Be separated cavity below in conjunction with accompanying drawing to the refrigerated centrifuge of band evaporation coil of the present invention to be described in further detail.
As shown in Figure 1, the refrigerated centrifuge of band evaporation coil of the present invention is separated cavity, cavity 1 is separated outer tight around copper tube 2 at stainless steel, and molten tin 3 is filled in the gap that copper tube 2 and stainless steel are separated between cavity 1, after tin cooling curing fusion, copper tube 2 to be separated cavity 1 tightly link be integrated with stainless steel, the molten tin of filling effectively increases copper tube 2 and stainless steel and is separated heat exchange area between cavity 1.The heat of stainless steel separation cavity 1 passes to refrigerant 4 by inner bag, scolding tin 3 and copper tube 2 and takes away.
The refrigerated centrifuge of band evaporation coil of the present invention is separated cavity and adopts molten tin as the packing material between copper pipe and stainless steel cavity.Because the fusing point of tin is lower, only have 232 DEG C, and the fusing point of red copper is 1084 DEG C, stainless fusing point is higher, more than 1400 DEG C, can not destroy copper pipe and stainless steel during molten tin.And the heat conductivility of tin is better, thermal conductivity factor is 62W/mK, so both effectively increase the heat exchange area between copper pipe and stainless steel cavity, can lean on again molten tin that copper pipe and cavity are fixed, reach desirable heat transfer effect, make the heat in separation cavity be delivered in refrigerant take away by stainless steel cavity, molten tin, copper pipe, reach the object reducing rapidly cavity temperature.
Below the preferred embodiment of the invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (4)
1. be with the refrigerated centrifuge of evaporation coil to be separated cavity, it is characterized in that, comprising:
Be separated cavity;
Heat-transfer pipe, described heat-transfer pipe winding is in the outside of described separation cavity, and described heat-transfer pipe is hollow structure, in described heat-transfer pipe, be filled with refrigerant;
Heat exchange medium, described heat exchange medium is arranged on the outside of described heat-transfer pipe.
2. the refrigerated centrifuge of band evaporation coil according to claim 1 is separated cavity, and it is characterized in that, the material of described separation cavity is stainless steel.
3. the refrigerated centrifuge of band evaporation coil according to claim 1 is separated cavity, and it is characterized in that, the material of described heat-transfer pipe is red copper.
4. the refrigerated centrifuge of band evaporation coil according to claim 1 is separated cavity, it is characterized in that, the material of described heat exchange medium is molten tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410857303.5A CN104549785A (en) | 2014-12-30 | 2014-12-30 | Refrigerated centrifuge separation chamber with evaporation coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410857303.5A CN104549785A (en) | 2014-12-30 | 2014-12-30 | Refrigerated centrifuge separation chamber with evaporation coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104549785A true CN104549785A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410857303.5A Pending CN104549785A (en) | 2014-12-30 | 2014-12-30 | Refrigerated centrifuge separation chamber with evaporation coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104549785A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333616A (en) * | 2015-12-11 | 2016-02-17 | 黄永伟 | External coil pipe type enamel water tank thermal exchange inner container |
| CN108981969A (en) * | 2018-06-07 | 2018-12-11 | 浙江大学 | Geotechnical centrifuge windage quantity of heat production test device and method under vacuum environment |
| CN112658522A (en) * | 2021-01-11 | 2021-04-16 | 湛江经济技术开发区裕鑫实业有限公司 | Method for connecting centrifugal chamber and evaporator coil in refrigeration centrifuge |
-
2014
- 2014-12-30 CN CN201410857303.5A patent/CN104549785A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333616A (en) * | 2015-12-11 | 2016-02-17 | 黄永伟 | External coil pipe type enamel water tank thermal exchange inner container |
| CN108981969A (en) * | 2018-06-07 | 2018-12-11 | 浙江大学 | Geotechnical centrifuge windage quantity of heat production test device and method under vacuum environment |
| CN108981969B (en) * | 2018-06-07 | 2023-07-25 | 浙江大学 | Device and method for testing air friction heat generation capacity of geotechnical centrifuge in vacuum environment |
| CN112658522A (en) * | 2021-01-11 | 2021-04-16 | 湛江经济技术开发区裕鑫实业有限公司 | Method for connecting centrifugal chamber and evaporator coil in refrigeration centrifuge |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |