CN102580864A - High-precision temperature-control refrigerated centrifuge - Google Patents
High-precision temperature-control refrigerated centrifuge Download PDFInfo
- Publication number
- CN102580864A CN102580864A CN2012100611190A CN201210061119A CN102580864A CN 102580864 A CN102580864 A CN 102580864A CN 2012100611190 A CN2012100611190 A CN 2012100611190A CN 201210061119 A CN201210061119 A CN 201210061119A CN 102580864 A CN102580864 A CN 102580864A
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- heater wire
- temperature
- centrifugal pot
- refrigerated centrifuge
- bimetal leaf
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Abstract
The invention discloses a high-precision temperature-control refrigerated centrifuge, which comprises a centrifugal pot and evaporator copper pipes covered outside the centrifugal pot. Heating wires are wound on the evaporator copper pipes, one end of each heating wire is connected with a bimetallic strip attached with the heating wire, and the heating wire and two ends of the bimetallic strip connected with the same are connected with a heating power source. The temperature of the cavity of the centrifugal pot can be controlled accurately in real time, and frequent stop and start of a compressor during operation are avoided so that the service life of the compressor is prolonged.
Description
Technical field
The present invention relates to a kind of high-precision temperature control refrigerated centrifuge
Background technology
at present on domestic market the control of refrigerated centrifuge temperature all be to lean on the startup of compressor and stop to control, the compressor life-span is shortened in high frequent start and stop meeting greatly.And, because compressor needs time a few minutes to protect compressor after stopping, can not starting once more at once, if deviation appears in temperature and design temperature in the at this moment centrifugal pot cavity, instrument can not start compressor at once and go to control temperature in the cavity.Therefore, traditional refrigerated centrifuge can not be controlled the temperature in the centrifugal pot cavity in real time
Summary of the invention
the present invention seeks to: to the problems referred to above; A kind of high-precision temperature control refrigerated centrifuge is provided; This refrigerated centrifuge can accurately be controlled centrifugal pot cavity temperature in real time, and compressor need not frequent start-stop when work, has prolonged the compressor life-span.
technical scheme of the present invention is: a kind of high-precision temperature control refrigerated centrifuge; The evaporimeter copper pipe that comprises centrifugal pot and wrap in this centrifugal pot outside; Be wound with heater wire on the said evaporimeter copper pipe; This heater wire one end is serially connected with the bimetal leaf that is close together with heater wire, and said heater wire links to each other with heating power supply with the two ends of the bimetal leaf that is connected in series with it.
are as a preferred version of the present invention: said centrifugal pot outside is provided with wraps up polyurethane insulation coating within it with said evaporimeter copper pipe and heater wire.
advantage of the present invention is: the present invention is wound with heater wire on the evaporimeter copper pipe; This heater wire one end is serially connected with the bimetal leaf that is close together with heater wire, and heater wire links to each other with heating power supply with the two ends of the bimetal leaf that is connected in series with it.During use, when design temperature was lower than environment temperature, the refrigeration system of this centrifuge started, and the low temperature of evaporimeter copper pipe is transmitted in the centrifugal pot cavity through centrifugal pot wall, thereby made centrifugal pot cavity temperature begin to descend.After cavity temperature dropped to design temperature, compressor did not quit work, and open the heater wire heating function this moment, made heat and the mutual balance of cold of copper pipe evaporimeter on the heater wire, controlled the temperature in the centrifuge cavity with the method.The bimetal leaf that is connected in series with heater wire is normally closed; Bimetal leaf and heater wire are close together, with the temperature of real-time eddy-current heating line, when the bimetal leaf temperature surpasses uniform temperature; The heating power supply of bimetallic sector-meeting automatic disconnection heater wire, thus guarantee that the heater wire temperature is no more than safe temperature.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the circuit diagram of the embodiment of the invention;
Fig. 3 is the schematic diagram of refrigerating of the embodiment of the invention;
wherein: the centrifugal pot of 1-, 2-evaporimeter copper pipe, 3-heater wire, 4-bimetal leaf, 5-polyurethane insulation coating, 6-capillary, 7-filter, 8-compressor, 9-check valve.
The specific embodiment
are as depicted in figs. 1 and 2, and the high-precision temperature control refrigerated centrifuge of present embodiment comprises centrifugal pot 1, and this centrifugal pot outside is surrounded by one deck evaporimeter copper pipe 2.Be wound with heater wire 3 on the said evaporimeter copper pipe 2, this heater wire 3 one ends serial connection (being said in the electricity " series connection ") bimetal leaf 4, said heater wire 3 links to each other with heating power supply with the two ends of the bimetal leaf 4 that is connected in series with it.
The temperature of heater wire 3 can be sensed in real time in order to make bimetal leaf 4 in
, and this example is with special bimetal leaf 4 and heater wire 3 layout that is close together.
in addition, and are as shown in Figure 1, and this example also is provided with polyurethane insulation coating 5 in said centrifugal pot 1 outside, and this polyurethane insulation coating 5 wraps up said evaporimeter copper pipe 2 and heater wire 3 within it.
are with reference to Fig. 1, Fig. 2 and Fig. 3; The operation principle of present embodiment is following: when design temperature is lower than environment temperature; The refrigeration system of this centrifuge starts; The low temperature of evaporimeter copper pipe 2 is transmitted in the centrifugal pot cavity through centrifugal pot wall, thereby makes centrifugal pot cavity temperature begin to descend.After cavity temperature drops to design temperature; Compressor 8 do not quit work (different) with traditional approach; Connect the heating function that heating power supply is opened heater wire 3 this moment; Make heat and the mutual balance of cold of copper pipe evaporimeter 2 on the heater wire 3, control the temperature in the centrifuge cavity, make the temperature in the centrifuge cavity remain aforementioned design temperature with the method.The bimetal leaf 4 that is connected in series with heater wire is for normally closed; Bimetal leaf 4 is close together with heater wire 1; The temperature of bimetal leaf 4 also rises thereupon when the temperature of heater wire 3 raises, when the bimetal leaf temperature surpasses uniform temperature (being generally 60 ℃), and the heating power supply of automatic disconnection heater wire thereby the self structure of bimetal leaf can change; It is thus clear that this bimetal leaf 4 mainly serves as the effect of temperature controller, and then guarantee that heater wire 3 temperature are no more than safe temperature
Claims (2)
1. a high-precision temperature is controlled refrigerated centrifuge; The evaporimeter copper pipe (2) that comprises centrifugal pot (1) and wrap in this centrifugal pot outside; It is characterized in that: be wound with heater wire (3) on the said evaporimeter copper pipe (2); These heater wire (3) one ends are serially connected with the bimetal leaf (4) that is close together with heater wire, and said heater wire (3) links to each other with heating power supply with the two ends of the bimetal leaf (4) that is connected in series with it.
2. high-precision temperature control refrigerated centrifuge according to claim 1 is characterized in that: said centrifugal pot (1) outside is provided with said evaporimeter copper pipe (2) and heater wire (3) parcel polyurethane insulation coating (5) within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100611190A CN102580864A (en) | 2012-03-09 | 2012-03-09 | High-precision temperature-control refrigerated centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100611190A CN102580864A (en) | 2012-03-09 | 2012-03-09 | High-precision temperature-control refrigerated centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102580864A true CN102580864A (en) | 2012-07-18 |
Family
ID=46470413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100611190A Pending CN102580864A (en) | 2012-03-09 | 2012-03-09 | High-precision temperature-control refrigerated centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102580864A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332728A (en) * | 2019-07-04 | 2019-10-15 | 深圳市瑞沃德生命科技有限公司 | A kind of refrigeration system |
| CN113996453A (en) * | 2021-11-02 | 2022-02-01 | 徐州医科大学 | Cyclone type low-temperature centrifuge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3564920A (en) * | 1967-10-11 | 1971-02-23 | Mse Holdings Ltd | Temperature sensing in centrifuges |
| CN87102314A (en) * | 1987-03-26 | 1988-10-12 | 莫斯科“生物物理仪器”科学制造公司 | Centrifugal separator |
| JPH072217B2 (en) * | 1988-07-22 | 1995-01-18 | 日立工機株式会社 | centrifuge |
| CN2531879Y (en) * | 2001-10-23 | 2003-01-22 | 上海市离心机械研究所 | Heater for biological freezing centrifuger |
| CN202538965U (en) * | 2012-03-09 | 2012-11-21 | 苏州捷美电子有限公司 | High-precision temperature-control refrigerated centrifuge |
-
2012
- 2012-03-09 CN CN2012100611190A patent/CN102580864A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3564920A (en) * | 1967-10-11 | 1971-02-23 | Mse Holdings Ltd | Temperature sensing in centrifuges |
| CN87102314A (en) * | 1987-03-26 | 1988-10-12 | 莫斯科“生物物理仪器”科学制造公司 | Centrifugal separator |
| JPH072217B2 (en) * | 1988-07-22 | 1995-01-18 | 日立工機株式会社 | centrifuge |
| CN2531879Y (en) * | 2001-10-23 | 2003-01-22 | 上海市离心机械研究所 | Heater for biological freezing centrifuger |
| CN202538965U (en) * | 2012-03-09 | 2012-11-21 | 苏州捷美电子有限公司 | High-precision temperature-control refrigerated centrifuge |
Non-Patent Citations (1)
| Title |
|---|
| 陈惠: "《双金属片式热保护测试电路》", 《家用电器科技》, no. 1, 31 January 1993 (1993-01-31), pages 31 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332728A (en) * | 2019-07-04 | 2019-10-15 | 深圳市瑞沃德生命科技有限公司 | A kind of refrigeration system |
| WO2021000600A1 (en) * | 2019-07-04 | 2021-01-07 | 深圳市瑞沃德生命科技有限公司 | Refrigeration system |
| CN113996453A (en) * | 2021-11-02 | 2022-02-01 | 徐州医科大学 | Cyclone type low-temperature centrifuge |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |