CN104307587A - Large-volume high-precision liquid thermostatic bath - Google Patents
Large-volume high-precision liquid thermostatic bath Download PDFInfo
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- CN104307587A CN104307587A CN201410619717.4A CN201410619717A CN104307587A CN 104307587 A CN104307587 A CN 104307587A CN 201410619717 A CN201410619717 A CN 201410619717A CN 104307587 A CN104307587 A CN 104307587A
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Abstract
The invention belongs to the technical field of liquid thermostatic equipment, and relates to a large-volume high-precision liquid thermostatic bath. The large-volume high-precision liquid thermostatic bath comprises a thermostatic bath body, a top cover, stirrers, a metal partition with holes, heaters, and observation windows, wherein the top cover is arranged on the upper surface of the thermostatic bath body; the stirrers, the metal partition with the holes, the heaters and a liquid are all arranged in an inner chamber formed by the thermostatic bath body; heat-insulating materials are arranged outside the thermostatic bath body and on the inner wall of the top cover. The large-volume high-precision liquid thermostatic bath is characterized in that a plurality of holes are formed in the top cover, three layers of stirring blades are mounted on each stirrer, and the stirring blades are inserted in the liquid in the thermostatic bath body; the heaters are inserted in the liquid in the thermostatic bath body; the metal partition with the holes divides the thermostatic bath body into a working area and a temperature control area; the stirrers and the heaters are all arranged in the temperature control area. The large-volume high-precision liquid thermostatic bath with the observation windows provided by the invention can meet the requirements for the working volume, temperature range, temperature control precision and observability of a thermostatic environment.
Description
Technical field
The present invention relates to liquid constant temperature equipment technical field, particularly relate to a kind of Large Copacity high-precision liquid thermostat, be applicable to the use occasion needing Large Copacity isoperibol.
Background technology
Thermostat is a kind of cell body that can provide steady temperature environment, and being widely used in the every field such as medical and health, petrochemistry, biology, food industry, is the necessary equipment of temperature measurement, scientific research etc.
In recent years, along with developing rapidly of association area key technology, isoperibol is had higher requirement, not only require that temperature-controlled precision is high, warm area scope is wide, and requirement can provide jumbo isoperibol, and with observation window for observing by the phenomenon of thermostatic equipment inside and rule.The typical thermostat technical indicator of producing both at home and abroad is at present as shown in the table.As seen from the table: the thermostat temperature-controlled precision of domestic production relatively low and swept volume and limited height; The thermostat temperature-controlled precision that the Fluke company of thermostat manufacturer of foreign well-known produces is higher, but swept volume is limited, as 6022 type thermostat swept volumes are only 27L, or warm area is limited in scope, as 7009 type resistance thermostat maximum temperatures are only 50 DEG C, and there is no observation window.In sum, existing thermostat all cannot meet instructions for use in temperature-controlled precision, warm area scope, swept volume and observability simultaneously.
Some technical parameters of domestic and international typical thermostat
Summary of the invention
The object of the invention is to solve the problems referred to above that existing thermostat faces, develop a kind of swept volume and reach 100L, in DEG C temperature range of room temperature ~ 200, temperature fluctuation lower than ± 2mK/15min and both sides all with the Large Copacity high-precision thermostat bath of observation window.
Technical scheme implementation of the present invention is as follows: a kind of Large Copacity high-precision liquid thermostat, comprises thermostat cell body, top cover, agitator, metal partion (metp) with holes, heater; Described thermostat cell body is outside equipped with insulation material; Described top cover is provided with a square opening and multiple round hole, and top cover inwall is provided with insulation material; Described agitator is provided with three layers of stirring vane, stirring vane inserts in the liquid in thermostat cell body; Described heater inserts in the liquid in thermostat cell body; Thermostat cell body is divided into workspace and temperature control district by described metal partion (metp) with holes, and agitator and heater are all arranged on temperature control district.Described thermostat cell body is 550 × 600 × 580mm
3cuboid, wherein workspace is of a size of 550 × 400 × 450mm
3.
Described top cover is positioned at thermostat cell body top, top cover is provided with a square opening, multiple round hole, and mixing arm and heater are inserted in the liquid in thermostat cell body by round hole.
Described agitator quantity is two, and be positioned at the same side of thermostat cell body, speed of agitator is set to 1200 ~ 1700rpm, and rotation direction is contrary.Each agitator is arranged 3 layers, upper, middle and lower stirring vane, the torsional direction of stirring vane is identical, and blade twist angle is followed successively by 40 ~ 50 °, 25 ~ 35 °, 10 ~ 20 ° from top to bottom, and on two agitators, the torsional direction of stirring vane is contrary.
Described heater is between two agitators, and quantity can be multiple, can arrange cooling coil around heater.
Described thermostat cell body both sides are provided with observation window, and the size of two observation windows is not identical.
Described thermostat swept volume specification is 550 × 400 × 450mm
3, in DEG C temperature range of room temperature ~ 200, temperature fluctuation is lower than ± 2mK/15min.
The present invention has following advantage and effect: the capacity of devising reaches the large swept volume of 100L, and both sides are with observation window, and side is used for arranging irradiation light, and side is used for Phenomena Observation, can be good at meeting the requirement to isoperibol performance in actual use.Have employed the double stirrer structure of reverse rotation, combine with metal partion (metp) with holes, make the even flow field of liquid symmetrical, be both conducive to the stable of temperature field, workspace, control again the impact of fluid flowing to workspace.Each agitator is arranged three layers of varied angle blade, help lend some impetus to fluid stable Uniform Flow.Agitator and heater are divided the side being interposed between thermostat by metal partion (metp) with holes, avoid the temperature shock in isoperibol and impact flow.Finally, under this invention achieves the large swept volume of 100L, in DEG C temperature range of room temperature ~ 200, temperature fluctuation is lower than the control accuracy of ± 2mK/15min.
Accompanying drawing explanation
Fig. 1 is thermostat structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is thermostat top cover schematic diagram of the present invention
Fig. 4 is shaft schematic diagram of the present invention
Wherein: 1-agitator; 2-top cover; 3-thermostat cell body; 4-perforated metal dividing plate; 5-heater; 6-insulation material; 7-observation window; 8-square opening; 9-round hole; 10-shaft upper strata blade twist angle; 11-shaft middle level blade twist angle; 12-shaft lower leave windup-degree.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further:
Fig. 1,2, shown in 3, thermostat cell body 3 adopts metal material to make, for supporting all parts in thermostat.Thermostat cell body 3 periphery is provided with insulation material 6, and insulation material 6 is for reducing thermostat cell body 3 surrounding and the exchange heat between bottom and environment; Top cover 2 is arranged on the top of thermostat cell body 3, reduces the heat exchange between thermostat cell body 3 top and the external world; Stirring vane and the heater 5 of agitator 1 are inserted in liquid by the perforate on top cover 2, and the flowing control and the temperature that realize liquid control;
Thermostat cell body 3 is separated into temperature control district and workspace by metal partion (metp) 4, and agitator 1 (having two) and heater 5 are arranged on temperature control district, stirring and temperature is controlled to separate with swept volume, ensure that stablizing of Flow and heat flux in swept volume; Heater 5 is between two agitators, be conducive to the accurate control of fluid temperature (F.T.), also multiple specification can be set, be respectively used to being rapidly heated and temperature control of fluid, the two side of thermostat cell body 3 is respectively arranged an observation window 7, observation window 7 purposes of both sides is different, specification is different, irradiation light is set in less observation window side, observes at larger observation reveal, be conducive to broadening one's vision and range of observation.
Shown in Fig. 4, top cover there is a square opening, multiple circular port; Wherein, square opening is used for the associative operation of thermostat workspace, circular port for install agitator, heater,
Each agitator is provided with 3 layers, upper, middle and lower stirring vane, same agitator blade torsional direction is identical, windup-degree reduces from top to bottom successively, upper strata blade twist angle 10 is 40 ~ 50 °, middle level blade twist angle 11 is 25 ~ 35 °, lower leave windup-degree 12 is 10 ~ 20 °, is conducive to the uniformity of fluid flowing in whipping process.
Illustrate: the circular port mounting temperature sensor on top cover of the present invention.
Around heater or around agitator, can cooling coil be set, be conducive to stablizing close to fluid temperature under room ambient conditions, and the fast cooling of fluid can be realized.
Liquid comprises methyl-silicone oil or heat conduction dissolved salt.
Claims (8)
1. a Large Copacity high-precision liquid thermostat, comprises thermostat cell body, top cover, agitator, metal partion (metp) with holes, heater, observation window; Be provided with top cover above thermostat cell body, agitator, metal partion (metp) with holes, heater and liquid are all arranged in the inner chamber of thermostat cell body formation; Described thermostat cell body is outside equipped with insulation material; Top cover inwall is provided with insulation material; It is characterized in that: the inner chamber swept volume that thermostat cell body is formed is 100 L, and described top cover is provided with some holes, described agitator is provided with three layers of stirring vane, stirring vane inserts in the liquid in thermostat cell body; Described heater inserts in the liquid in thermostat cell body; Thermostat cell body is divided into workspace and temperature control district by described metal partion (metp) with holes, and agitator and heater are all arranged on temperature control district.
2. a kind of Large Copacity high-precision liquid thermostat according to claim 1, it is characterized in that: Kong Youyi the square opening that described top cover is arranged and multiple round hole, mixing arm and heater are inserted in the liquid in thermostat cell body by circular port.
3. a kind of Large Copacity high-precision liquid thermostat according to claim 1, is characterized in that: described agitator quantity is two, and two agitators are positioned at the same side of thermostat cell body, and rotating speed is identical, are all set to 1200 ~ 1700rpm, and rotation direction is contrary.
4. a kind of Large Copacity high-precision liquid thermostat according to claim 1 or 3, it is characterized in that: agitator is arranged 3 layers, upper, middle and lower stirring vane, the torsional direction of stirring vane is identical, blade twist angle is followed successively by 40 ~ 50 °, 25 ~ 35 °, 10 ~ 20 ° from top to bottom, and on two agitators, the torsional direction of stirring vane is contrary.
5. a kind of Large Copacity high-precision liquid thermostat according to claim 1, is characterized in that: described heater is between two agitators, and quantity is at least 1, arranges cooling coil around heater.
6. a kind of Large Copacity high-precision liquid thermostat according to claim 1, is characterized in that: described metal partion (metp) with holes, its porosity is set between 0.2 ~ 0.5.
7. a kind of Large Copacity high-precision liquid thermostat according to claim 1, is characterized in that: described thermostat cell body both sides are provided with observation window, and the size of two observation windows is not identical.
8. a kind of Large Copacity high-precision liquid thermostat according to claim 1, is characterized in that: described thermostat cell body specification is 550 × 400 × 450 mm
3, in DEG C temperature range of room temperature ~ 200, temperature fluctuation is lower than ± 2 mK/15min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410619717.4A CN104307587B (en) | 2014-11-05 | 2014-11-05 | A kind of Large Copacity high-precision liquid thermostat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410619717.4A CN104307587B (en) | 2014-11-05 | 2014-11-05 | A kind of Large Copacity high-precision liquid thermostat |
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| CN104307587A true CN104307587A (en) | 2015-01-28 |
| CN104307587B CN104307587B (en) | 2015-09-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841680A (en) * | 2020-07-01 | 2020-10-30 | 泰安磐然测控科技有限公司 | Thermostatic bath and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996029602A1 (en) * | 1995-03-20 | 1996-09-26 | Precision System Science Co., Ltd. | Method and apparatus for liquid treatment utilizing dispenser |
| CN101116835A (en) * | 2006-07-31 | 2008-02-06 | 陈坚 | Constant temperature oven |
| CN101284250A (en) * | 2008-05-26 | 2008-10-15 | 北京航空航天大学 | Liquid constant temperature bath used as heat source |
| CN101320028A (en) * | 2008-05-30 | 2008-12-10 | 西安交通大学 | Experiment platform for fluid thermophysical property measurement |
| CN103263951A (en) * | 2013-06-06 | 2013-08-28 | 苏州市金翔钛设备有限公司 | Thermostatic bath capable of stirring |
-
2014
- 2014-11-05 CN CN201410619717.4A patent/CN104307587B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996029602A1 (en) * | 1995-03-20 | 1996-09-26 | Precision System Science Co., Ltd. | Method and apparatus for liquid treatment utilizing dispenser |
| CN101116835A (en) * | 2006-07-31 | 2008-02-06 | 陈坚 | Constant temperature oven |
| CN101284250A (en) * | 2008-05-26 | 2008-10-15 | 北京航空航天大学 | Liquid constant temperature bath used as heat source |
| CN101320028A (en) * | 2008-05-30 | 2008-12-10 | 西安交通大学 | Experiment platform for fluid thermophysical property measurement |
| CN103263951A (en) * | 2013-06-06 | 2013-08-28 | 苏州市金翔钛设备有限公司 | Thermostatic bath capable of stirring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841680A (en) * | 2020-07-01 | 2020-10-30 | 泰安磐然测控科技有限公司 | Thermostatic bath and control method thereof |
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| CN104307587B (en) | 2015-09-30 |
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Effective date of registration: 20180606 Address after: 311100 6, 1 building, 1-2 Qixian Road, Liangzhu street, Yuhang District, Hangzhou, Zhejiang. Patentee after: ZHEJIANG UNITE SCIENCE INSTRUMENT CO., LTD. Address before: 030024 79 Yingze West Street, wanBerlin District, Taiyuan, Shanxi Patentee before: Taiyuan University of Technology |
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