WO2021000600A1 - Système de réfrigération - Google Patents

Système de réfrigération Download PDF

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Publication number
WO2021000600A1
WO2021000600A1 PCT/CN2020/079562 CN2020079562W WO2021000600A1 WO 2021000600 A1 WO2021000600 A1 WO 2021000600A1 CN 2020079562 W CN2020079562 W CN 2020079562W WO 2021000600 A1 WO2021000600 A1 WO 2021000600A1
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WO
WIPO (PCT)
Prior art keywords
centrifuge
compressor
copper coil
condenser
refrigeration system
Prior art date
Application number
PCT/CN2020/079562
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English (en)
Chinese (zh)
Inventor
张德鹏
Original Assignee
深圳市瑞沃德生命科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市瑞沃德生命科技有限公司 filed Critical 深圳市瑞沃德生命科技有限公司
Publication of WO2021000600A1 publication Critical patent/WO2021000600A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems

Definitions

  • This application relates to the field of refrigeration technology, and in particular to a refrigeration system.
  • the freezing system centrifuges commonly used in the market are mainly refrigerated by compressors. This kind of freezing system provides mechanical energy by the motor, and the compressor performs work on the refrigeration system.
  • the refrigeration system is made on the principle of evaporating and absorbing heat when the refrigerant has a low boiling point. To meet the separation requirements within a certain temperature control range of the freezing chamber of the freezing centrifuge.
  • the compressors of the existing freezing system centrifuges are mainly divided into two categories, one is an inverter compressor, and the other is a fixed frequency compressor. Because the rotor of the centrifuge will rub against the air to generate heat during high-speed operation, and because the freezing chamber is a closed environment, the temperature of the freezing chamber will increase. Assuming that the freezing chamber should be kept at a constant temperature, when a fixed frequency compressor is used, the fixed frequency compressor must be opened and closed continuously, but this will cause the centrifuge to vibrate greatly and affect the separation effect of the centrifuge ; When using an inverter compressor, although the vibration problem will be smaller than that of a fixed frequency compressor, there will also be vibration problems.
  • the technical problem to be solved by the embodiments of the present application is how to solve the problems of high vibration and high noise of the centrifuge in the existing refrigeration system.
  • an embodiment of the present application proposes a refrigeration system
  • the refrigeration system includes a compressor, a condenser, a centrifuge rotor, a centrifuge freezing cavity, a semiconductor refrigerator, a centrifuge drive system, and a copper coil;
  • the centrifuge rotor is arranged in the centrifuge ice cavity, the centrifuge drive system is connected with the centrifuge rotor;
  • the compressor is connected with the condenser, and the condenser is connected with the copper coil
  • the copper coil is connected to the compressor; the copper coil is coiled on the inner wall of the centrifuge freezing cavity, and the semiconductor refrigerator is coiled on the inner wall of the centrifuge freezing cavity.
  • a further technical solution is that the copper coils and the semiconductor refrigerators are alternately arranged on the inner wall of the freezing cavity of the centrifuge.
  • a further technical solution is that the material of the inner wall of the freezing cavity of the centrifuge is stainless steel.
  • a further technical solution is that the copper coil is welded to the inner wall of the freezing cavity of the centrifuge.
  • a further technical solution is that the outer side of the inner wall of the freezing cavity of the centrifuge wraps the foam.
  • a further technical solution is that the compressor is connected to the condenser through a high-pressure pipe.
  • a further technical solution is that the condenser is connected to the copper coil through a capillary tube.
  • a further technical solution is that the copper coil is connected to the copper coil through a low pressure tube.
  • a secondary refrigeration mode with compressor refrigeration as the main refrigeration mode and semiconductor refrigeration mode as the auxiliary mode is adopted.
  • the compressor By setting the compressor to work at a constant frequency, the compressor will not have too much vibration.
  • the size of the semiconductor refrigerator is small, there is no mechanical transmission part, no noise during operation, and no liquid or gaseous working medium. Does not pollute the environment.
  • FIG. 1 is a schematic structural diagram of a refrigeration system proposed by an embodiment of the application
  • Fig. 2 is a schematic structural diagram of a centrifuge freezing cavity of a refrigeration system according to an embodiment of the application.
  • Compressor 1 high pressure tube 2, condenser 3, capillary tube 4, centrifuge rotor 5, centrifuge freezing chamber 6, semiconductor refrigerator 7, centrifuge drive system 8, low pressure tube 9, copper coil 10, inner wall 11 , Foam 12.
  • the refrigeration system includes a compressor 1, a condenser 3, a centrifuge rotor 5, a centrifuge freezing chamber 6, a semiconductor refrigerator 7, and a centrifuge Machine drive system 8 and copper coil 10.
  • the centrifuge rotor 5 is arranged in the centrifuge freezing cavity 6, and the centrifuge driving system 8 is connected with the centrifuge rotor 5 for driving the centrifuge rotor 5 to move.
  • the compressor 1 is connected to the condenser 3, the condenser 3 is connected to the copper coil 10, and the copper coil 10 is connected to the compressor 1.
  • the copper coil 10 is coiled on the inner wall 11 of the freezing cavity 6 of the centrifuge.
  • the semiconductor refrigerator 7 is coiled on the inner wall 11 of the freezing cavity 6 of the centrifuge.
  • the compressor 1 is connected to the condenser 3 through a high-pressure pipe 2.
  • the condenser 3 is connected to the copper coil 10 through a capillary tube 4.
  • the copper coil 10 is connected to the copper coil 10 through a low pressure tube 9.
  • the compressor 1, the condenser 3 and the copper coil 10 constitute a primary refrigeration system.
  • the refrigerant in the compressor 1 changes from gas to liquid in the condenser 3 through the high-pressure pipe 2 under the action of the compressor 1, which is a process of heat dissipation.
  • the liquid refrigerant in the condenser 3 passes through the capillary tube 4 and then to the copper coil 10 in the centrifuge freezing chamber 6. In this process, the refrigerant changes from liquid to gas, which is a heat-absorbing process to achieve cooling effect.
  • the refrigerant then returns to the compressor 1 through the low pressure pipe 9 to form a cycle.
  • the compressor 1 is an inverter compressor, which runs at a constant speed to keep the compressor running stably; the compressor 1 can also be a fixed-frequency compressor with a rated power, and those skilled in the art can adjust the compressor according to actual refrigeration requirements. Select the power of the compressor.
  • the semiconductor refrigerator 7 is closely attached to the inner wall 11 of the freezing chamber 6 of the centrifuge, which is a secondary refrigeration circuit.
  • the compressor 1 works to make the temperature of the centrifugal chamber reach or close to the set temperature (for example, 4°C).
  • the compressor 1 runs at a constant speed, and the compressor runs very stably without causing major Vibration will not affect the separation effect of the adapter of the centrifuge rotor 5.
  • the semiconductor refrigerator 7 starts to work to make the temperature in the centrifuge freezing chamber 6 reach the set value. At this time, there is no need to change the working condition of the compressor 1, so The normal separation of the adapter of the centrifuge rotor 5 is ensured.
  • the material of the inner wall 11 of the centrifuge freezing cavity 6 is stainless steel.
  • the copper coil 10 is welded to the inner wall 11 of the freezing chamber 6 of the centrifuge. As a result, the copper coil 10 can better contact the inner wall 11 of the centrifuge freezing cavity 6 and improve the heat dissipation effect.
  • the copper coil 10 and the semiconductor refrigerator 7 are alternately arranged on the inner wall 11 of the centrifuge freezing cavity 6 so that heat can be dissipated to the centrifuge freezing cavity 6 more evenly.
  • the outer side of the inner wall 11 of the centrifuge freezing cavity 6 wraps the foam 12, and the foam 12 plays a role of heat preservation, which effectively reduces the heat loss.
  • a secondary refrigeration mode with compressor refrigeration as the main refrigeration mode and semiconductor refrigeration mode as the auxiliary mode is adopted.
  • the compressor By setting the compressor to work at a constant frequency, the compressor will not have too much vibration.
  • the size of the semiconductor refrigerator 7 is small, there is no mechanical transmission part, no noise during operation, and no liquid or gaseous working medium. Therefore, it does not pollute the environment, and the refrigeration parameters are not affected by the spatial direction and gravity, and can work normally under large mechanical overload conditions; by adjusting the size of the working current, the refrigeration rate can be easily adjusted; by switching the current direction, the refrigerator can be made Transition from cooling state to heating working state; fast acting speed, long service life, and easy to control.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Centrifugal Separators (AREA)

Abstract

L'invention concerne un système de réfrigération, qui comprend un compresseur (1), un condenseur (3), un rotor de centrifugeuse (5), une cavité de congélation de centrifugeuse (6), un réfrigérateur à semi-conducteur (7), un système d'entraînement de centrifugeuse (8) et un tuyau hélicoïdal en cuivre (10). Le rotor de centrifugeuse (5) est disposé dans la cavité de congélation centrifuge (6), le système d'entraînement de centrifugeuse (8) est relié au rotor de centrifugeuse (5), le compresseur (1) est relié au condenseur (3), le condenseur (3) est relié au tuyau hélicoïdal en cuivre (10), le tuyau de bobine de cuivre (10) est relié au compresseur (1). Le tuyau hélicoïdal en cuivre (10) est enroulé sur la paroi interne de la cavité de congélation de centrifugeuse (6), et le réfrigérateur à semi-conducteur (7) est enroulé sur la paroi interne de la cavité de congélation de centrifugeuse (6). Le compresseur (1) fonctionne à une fréquence constante sans vibration trop importante, pendant ce temps, le réfrigérateur à semi-conducteur (7) présente une petite taille, n'a pas de partie de transmission mécanique, aucun bruit en fonctionnement, aucun milieu de travail liquide ou gazeux, et aucune pollution environnementale.
PCT/CN2020/079562 2019-07-04 2020-03-17 Système de réfrigération WO2021000600A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910599081.4A CN110332728A (zh) 2019-07-04 2019-07-04 一种制冷系统
CN201910599081.4 2019-07-04

Publications (1)

Publication Number Publication Date
WO2021000600A1 true WO2021000600A1 (fr) 2021-01-07

Family

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Application Number Title Priority Date Filing Date
PCT/CN2020/079562 WO2021000600A1 (fr) 2019-07-04 2020-03-17 Système de réfrigération

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CN (1) CN110332728A (fr)
WO (1) WO2021000600A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332728A (zh) * 2019-07-04 2019-10-15 深圳市瑞沃德生命科技有限公司 一种制冷系统
CN113266956B (zh) * 2021-03-24 2022-06-14 浙江大学 超重力离心机的制冷系统与冷却方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228401A (ja) * 1992-02-19 1993-09-07 Hitachi Koki Co Ltd 遠心分離機の温度制御方法
CN2295171Y (zh) * 1997-04-28 1998-10-21 津市市石油化工仪器有限公司 复合式半导体压缩机致冷仪
JP2001153487A (ja) * 1999-11-30 2001-06-08 Tomy Ltd ペルチェ素子の取付け構造
CN102580864A (zh) * 2012-03-09 2012-07-18 苏州捷美电子有限公司 一种高精度温度控制冷冻离心机
CN103476507A (zh) * 2011-04-15 2013-12-25 日立工机株式会社 离心机
CN108097475A (zh) * 2017-12-28 2018-06-01 江苏省肿瘤医院 一种半导体控温离心器
EP3479903A1 (fr) * 2017-11-06 2019-05-08 Sigma Laborzentrifugen GmbH Centrifugeuse
CN110332728A (zh) * 2019-07-04 2019-10-15 深圳市瑞沃德生命科技有限公司 一种制冷系统

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US5551241A (en) * 1994-03-02 1996-09-03 Boeckel; John W. Thermoelectric cooling centrifuge
JPH0915951A (ja) * 1995-06-30 1997-01-17 Fuji Xerox Co Ltd 像保持部材および像形成方法
JP5861988B2 (ja) * 2011-04-15 2016-02-16 日立工機株式会社 遠心分離機
WO2013003692A1 (fr) * 2011-06-30 2013-01-03 Highres Biosolutions Centrifugeuse automatisée avec accès latéral et par le haut
CN103143454A (zh) * 2013-02-27 2013-06-12 长沙市鑫奥仪器仪表有限公司 超速离心机
CN203364527U (zh) * 2013-05-10 2013-12-25 广东英得尔实业发展有限公司 一种双制冷系统冰箱
JP6354061B2 (ja) * 2013-12-19 2018-07-11 工機ホールディングス株式会社 遠心機
CN206247696U (zh) * 2016-10-26 2017-06-13 南京航空航天大学 低温热泵

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228401A (ja) * 1992-02-19 1993-09-07 Hitachi Koki Co Ltd 遠心分離機の温度制御方法
CN2295171Y (zh) * 1997-04-28 1998-10-21 津市市石油化工仪器有限公司 复合式半导体压缩机致冷仪
JP2001153487A (ja) * 1999-11-30 2001-06-08 Tomy Ltd ペルチェ素子の取付け構造
CN103476507A (zh) * 2011-04-15 2013-12-25 日立工机株式会社 离心机
CN102580864A (zh) * 2012-03-09 2012-07-18 苏州捷美电子有限公司 一种高精度温度控制冷冻离心机
EP3479903A1 (fr) * 2017-11-06 2019-05-08 Sigma Laborzentrifugen GmbH Centrifugeuse
CN108097475A (zh) * 2017-12-28 2018-06-01 江苏省肿瘤医院 一种半导体控温离心器
CN110332728A (zh) * 2019-07-04 2019-10-15 深圳市瑞沃德生命科技有限公司 一种制冷系统

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