CN101284251A - Constant temperature bath based on mixing cold and hot liquid to control temperature - Google Patents
Constant temperature bath based on mixing cold and hot liquid to control temperature Download PDFInfo
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- CN101284251A CN101284251A CNA2008101128223A CN200810112822A CN101284251A CN 101284251 A CN101284251 A CN 101284251A CN A2008101128223 A CNA2008101128223 A CN A2008101128223A CN 200810112822 A CN200810112822 A CN 200810112822A CN 101284251 A CN101284251 A CN 101284251A
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Abstract
The invention relates to a thermostatic bath based on the mixed temperature control of cold and hot liquids, a main body thereof is a thermostatic bath body which adopts metal materials with large thermal conductivities and has a certain thickness; the thermostatic bath is characterized in that: the thermostatic bath is divided into a work area and a temperature regulation area, the middle is separated by a metal partition plate with a hole; a stirrer is provided with stirring paddles in both the temperature regulation area and the work area, horizontal stirring is implemented in the temperature regulation area, stirring on the vertical direction is implemented in the work area; an annular heat exchanger is arranged in the work area, the heat exchanger surrounds the stirring paddles; the side wall of the work area is provided with a hole and is connected with a return pipeline and a self-circulating pipeline; the side wall of the temperature regulation area is provided with a hole and is connected with a liquid injection pipeline. The thermostatic bath based on the mixed temperature control of cold and hot liquids of the invention can carry greater heat load, have large capacity, high precision and high anti-interference ability and facilitate the work of the heat exchanger in the internal temperature field thereof.
Description
(1) technical field:
The present invention relates to a kind of thermostat, especially refer to a kind of sensor temperature demarcation of both can having carried out based on cold and hot liquids mixing temperature control, again can be with the liquid thermostatic bath based on cold and hot liquids mixing temperature control of big thermic load.Belong to liquid thermostatic bath.
(2) background technology:
A lot of occasions in the fluid thermophysical property analysis need and can especially heat exchanger be placed its internal temperature field accurate temperature controlling with the liquid precision thermostat of big thermic load.The capacity that is characterized in is big, power is big, precision is high, antijamming capability is strong.
At present, reach abroad that China generally produces and the liquid thermostatic bath that uses as shown in Figure 1 and Figure 2.
Constant temperature cell body 2 ' shown in Figure 1 comprises workspace 3 ' and 4 ' two cavitys in temperature adjustment district, and the upper and lower side in the workspace is provided with circulation canal 22 ', and the temperature adjustment district is provided with agitator 1 ', also is provided with condenser 19 ', heater 20 ' is used for regulating temperature.
Adopt the liquid thermostatic bath of this structure to have following defective:
1. bottom, workspace feed liquor body, the upper end goes out liquid, has the temperature difference of vertical direction on principle;
2. anhydrous square to stirring, so the temperature field uniformity of horizontal direction has much room for improvement;
3. the VELOCITY DISTRIBUTION of workspace is inhomogeneous, and is unfavorable to forming the even temperature field;
4. half of thermostat is the workspace, and effectively operation interval is little behind the removal border;
5. understand the shape and the performance of adversely effecting temp field with bulky load.
Thermostat shown in Figure 2 is a two-stage precise temperature control thermostat, auxiliary thermostat 18 ' is than low 20 degree of design temperature of main thermostat 17 ', the primary heater 25 ' and the condenser 19 ' of auxiliary thermostat separate with honeycomb screen 23 ', agitator 1 ' with liquid agitation evenly to obtain the high-performance temperature field.Main thermostat 17 ' is divided into workspace 3 ' and temperature adjustment district 4 ', and the two separates with honeycomb screen 23 '.There is powerful primary heater 25 ' in the temperature adjustment district, low power auxiliary heater 26 ', and the former is used for improving programming rate, and the latter is used for improving temperature-controlled precision, and agitator is even with liquid agitation.The cryogenic liquid that tubing pump 11 ' extracts auxiliary thermostat is delivered to the heat exchange base plate 21 ' of main thermostat through valve 24 ', realizes that the refrigeration of main thermostat is regulated, and primary heater of self and auxiliary heater are realized heating up and regulated.
Adopt the liquid thermostatic bath of this structure to have following defective:
1. Cooling and Heat Source and workspace are all in a cell body, and the source influence is difficult to eliminate, and causes non-uniform temperature;
2. a little less than the stirring of workspace, and do not have and vertically stir the division of stirring with level;
3. heated liquid is directly mixed with workspace liquid, causes the temperature field inhomogeneous;
4. though low-temperature receiver enters behind the main thermostat through the heat exchange of heat exchange base plate, lacks and further mixes the stirring measure.
(3) summary of the invention:
The object of the present invention is to provide a kind of thermostat, can be with big thermic load and capacity is big, precision is high, antijamming capability is high, be convenient to heat exchanger portion temperature field work within it, to overcome deficiency of the prior art based on cold and hot liquids mixing temperature control.
The present invention is a kind of thermostat based on cold and hot liquids mixing temperature control, and its technical scheme is: the main body of this thermostat, and promptly the constant temperature cell body adopts the big metal material of thermal conductivity, and has certain thickness, plays the effect of balanced fluid temperature; This thermostat is divided into workspace and temperature adjustment district, and the centre separates with the perforated metal dividing plate.Agitator all is provided with paddle in temperature adjustment district and workspace, and implementation level in temperature adjustment district stirs, and the stirring of vertical direction is carried out in the workspace.Be provided with the heat exchanger of ring-type in the workspace, and this heat exchanger surrounds paddle in suitable height, to obtain more stable flow field.Described workspace side-wall hole is connected to reflux line and self-loopa pipeline, and reflux line can be controlled liquid according to liquid level and be back to Cooling and Heat Source; Described temperature adjustment district side-wall hole is connected to the liquid injecting tube road.
Wherein, described heat exchanger, be according to the shell-and-tube exchanger that stirs flow Field Design, the inventor proposes the separate case application simultaneously, it is shaped as annular, can serve as the thermostat diversing bucket, this heat exchanger outer wall is provided with heat exchanger liquid input tube road, heat exchanger liquid output pipe road, heat transferring medium input channel and heat transferring medium output channel.Wherein, described heat transferring medium input channel and heat transferring medium output channel vertically pass the workspace sidewall; Heat exchanger liquid output pipe road vertically passes the workspace sidewall, behind the tubing pump of connecting, connects self-loopa pipeline and liquid injecting tube road more respectively.
Wherein, described liquid injecting tube road can further be connected with high-temp liquid flow in pipes and cryogenic liquid flow in pipes.
Wherein, described self-loopa pipeline is positioned at the top, workspace.
Wherein, the horizontal mixing direction of supposing thermostat liquid is for clockwise, the direction in described heat exchanger liquid input tube road stretches into the workspace against the horizontal mixing direction in temperature adjustment district, tangent with the inner circumference in workspace, and continue to extend one section circular arc at point of contact place along circumference, but stream field is implemented rotation and is taken out stream and stir.
Wherein, described self-loopa pipeline is to stretch into thermostat along the fluid level mixing direction, and is tangent with a certain circumference in the thermostat, and continues to stretch out one section circular arc at the place, point of contact along circumference, can implement rotating jet to liquid and stir.
Wherein, the reflux line of described workspace sidewall is to stretch into thermostat against the horizontal mixing direction in temperature adjustment district, and is tangent with a certain circumference in the workspace, and continues to stretch out one section circular arc at the place, point of contact along circumference, can implement rotation to liquid and take out the stream stirring.
Wherein, described liquid injecting tube road stretches into thermostat along the horizontal mixing direction in temperature adjustment district, and is tangent with a certain circumference in the temperature adjustment district, and continues to go out one section circular arc along circumferential extension at the place, point of contact, can implement rotating jet to liquid and stir.
The stream effect is taken out in the rotating jet of above-mentioned pipeline everywhere and rotation, and the level that all can improve thermostat stirs dynamics, can improve the temperature field performance of thermostat.
A kind of thermostat of the present invention based on cold and hot liquids mixing temperature control, its advantage and effect are:
1, the constant temperature cell body adopts thermal conductivity big and certain thickness metal material is arranged, and integral body plays the effect of balanced fluid temperature.Especially in the vertical direction circulation process of workspace, the liquid of exchanging the warm area injection has good equalization temperature effect.
2, cold and hot liquids mixes at pipeline with the liquid that heat exchanger is discharged, reduced the temperature contrast of cold and hot liquids and isothermal liquid, after injecting the temperature adjustment district together, with liquid in the temperature adjustment district through mixing, desalinated the temperature contrast of temperature adjustment district and workspace liquid, reduced temperature shock the temperature field, workspace.
3, liquid self-loopa pipeline, heat exchanger input channel, liquid injecting tube road, reflux line according to the horizontal mixing direction in temperature adjustment district determine pipeline towards, and all with thermostat in imaginary circumference tangent, the place continues to stretch out one section circular arc along circumference at the point of contact, implement rotating jet or rotation and take out stream, the level that can aggravate thermostat stirs dynamics, promotes the uniformity in temperature field.
5, metal perforated plate is isolated temperature adjustment district and workspace, can avoid the temperature adjustment district to the direct temperature shock in workspace, the eyelet that utilizes metal perforated plate injects the workspace with the liquid in temperature adjustment district in the mode of multiply thread, can make the whole alternating temperature of the approaching liquid of metal partion (metp), help the whole temperature control in temperature field, workspace.
6, the present invention is converted to the injection and the mixed problem of cold and hot liquids to the temperature control process of thermostat, has avoided direct Cooling and Heat Source influence, again can be on the basis that does not change thermostat fluid temperature field performance, and the speed of change heating and cooling in a big way in.Existing temperature adjustment speed has guaranteed temperature-controlled precision again.
(4) description of drawings:
Fig. 1 is the structural representation of single barrel of subregion thermostat in the prior art
Fig. 2 is the structural representation of two-stage thermostat in the prior art
Fig. 3 is the structural representation of the embodiment of the invention
Fig. 4 is duct orientation signal of the present invention
Be the label declaration of each figure below:
1,1 '-agitator 2,2 '-constant temperature cell body 3,3 '-workspace
4,4 '-temperature adjustment district 5-reflux line 6-self-loopa pipeline
7-heat exchanger 8-metal perforated plate 9-heat exchanger liquid output pipe road
10-liquid injecting tube road 11,11 '-tubing pump 12-high-temp liquid flow in pipes
13-cryogenic liquid flow in pipes 14-heat transferring medium input channel 15-heat transferring medium output channel
16-heat exchanger liquid input tube road 17 '-main thermostat 18 '-auxiliary thermostat
19 '-condenser 20 '-heater 21 '-heat exchange base plate
22 '-circulation canal 23 '-honeycomb screen 24 '-valve
25 '-primary heater 26 '-auxiliary heater
(5) specific embodiment:
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.
See also shown in Figure 3, a kind of thermostat of the present invention based on cold and hot liquids mixing temperature control, the main body of this thermostat, promptly the constant temperature cell body adopts the big metal material of thermal conductivity, and has certain thickness, plays the effect of balanced fluid temperature; This thermostat is divided into workspace 3 and temperature adjustment district 4, and the centre separates with perforated metal dividing plate 8, can reduce the temperature shock of 4 pairs of workspaces 3, temperature adjustment district.Agitator 1 all is provided with paddle in temperature adjustment district and workspace, and implementation level in temperature adjustment district stirs, and the stirring of vertical direction is carried out in the workspace, and the heat exchanger 7 of workspace places suitable height to surround paddle, to obtain more stable flow field; Described workspace 3 side-wall holes are connected to reflux line 5 and self-loopa pipeline 6, and wherein, self-loopa pipeline 6 is positioned at the top, workspace, and reflux line 5 can be controlled liquid according to liquid level and be back to Cooling and Heat Source; Described temperature adjustment district 4 side-wall holes are connected to liquid injecting tube road 10, and cold and hot liquids imports this pipeline with the partially liq of being extracted out by heat exchanger, inject the temperature adjustment district after preliminary mixing temperature adjustment, have reduced the temperature contrast of temperature adjustment district and workspace.
Described heat exchanger 7, be according to the shell-and-tube exchanger that stirs flow Field Design, the inventor proposes the separate case application simultaneously, it is shaped as annular, can serve as the thermostat diversing bucket, this heat exchanger outer wall is provided with heat exchanger liquid input tube road 16, heat exchanger liquid output pipe road 9, heat transferring medium input channel 14 and heat transferring medium output channel 15.Wherein, heat transferring medium input channel 14 and heat transferring medium output channel 15 vertically pass the workspace sidewall; Heat exchanger liquid output pipe road 9 vertically passes the workspace sidewall, connect behind the tubing pump, connect self-loopa pipeline 6 and liquid injecting tube road 10 more respectively, thereby form two bursts of backflows, be that tubing pump 11 extracts liquid in the heat exchanger by heat exchanger liquid output pipe road 9, inject workspace 3 inner tops and temperature adjustment district 4 then respectively; One liquid in injection temperature adjustment district mixes in pipeline with the liquid from Cooling and Heat Source, but equilibrium temperature, the temperature shock that reduces to exchange warm area; Another strand refluxes and injects the top, workspace, forms the liquid self-loopa.
Wherein, described liquid injecting tube road 10 can further be connected with high-temp liquid flow in pipes 12 and cryogenic liquid flow in pipes 13.
Wherein, the effect in temperature adjustment district 4 is to regulate temperature, have from the liquid of low-temperature receiver and converge in liquid injecting tube road 10 through high-temp liquid flow in pipes 12 through cryogenic liquid flow in pipes 13 and liquid from thermal source, the liquid of heat exchanger 7 outputs also enters the liquid injecting tube road and two strands of liquid converge, inject the temperature adjustment district then, through fully stirring the uniformity that realizes temperature.The effect of workspace is that the liquid in temperature adjustment district is evenly mixed with liquid in the thermostat temperature field, realizes the temperature control of workspace, and finishes the heat exchange of circular heat exchanger 7.
Wherein, the horizontal mixing direction of supposing thermostat liquid is for clockwise, and heat exchanger liquid input tube road 16 stretches into the workspace against the horizontal mixing direction in temperature adjustment district, and is tangent with the inner circumference in workspace, and continue to extend one section circular arc along circumference at point of contact place, as
Shape, wherein, the solid line roundlet is a heat exchanger 7, heat exchanger liquid input tube road 16 is tangent along circumference shown in camber line and the dotted line, and continues to stretch out one section circular arc at the place, point of contact along circumference, but the stream stirring is taken out in stream field enforcement rotation.
Wherein, self-loopa pipeline 6 is to stretch into thermostat along the fluid level mixing direction, and is tangent with a certain circumference in the thermostat, and continues to stretch out one section circular arc at the place, point of contact along circumference, as
Shape can be carried out rotating jet to liquid and be stirred.
Wherein, the reflux line 5 of workspace sidewall is to stretch into thermostat against temperature adjustment district 4 horizontal mixing directions, and is tangent with a certain circumference in the workspace, and continues to stretch out one section circular arc at the place, point of contact along circumference, as
Shape can be implemented rotation to liquid and be taken out the stream stirring.
Wherein, liquid injecting tube road 10 is to stretch into thermostat along the horizontal mixing direction in temperature adjustment district, and is tangent with a certain circumference in the temperature adjustment district 4, and continues to go out one section circular arc along circumferential extension at the place, point of contact, as
Shape can be implemented rotating jet to liquid and be stirred.
The stream stirring action is taken out in the rotating jet of above-mentioned pipeline everywhere and rotation, and the level that all can improve thermostat stirs dynamics, can improve the temperature field performance of thermostat, and they are the big circulation of the horizontal direction of liquid in paddle is facilitated thermostat.
Wherein, constant temperature cell body and metal perforated plate adopt copper material to make, and can play the effect of equalization temperature.
Claims (8)
1, a kind of thermostat based on cold and hot liquids mixing temperature control, its main body are that the constant temperature cell body adopts the big metal material of thermal conductivity, and have certain thickness; It is characterized in that: this thermostat is divided into workspace and temperature adjustment district, and the centre separates with the perforated metal dividing plate; Agitator all is provided with paddle in temperature adjustment district and workspace, and implementation level in temperature adjustment district stirs, and the stirring of vertical direction is carried out in the workspace; Be provided with the heat exchanger of ring-type in the workspace, and this heat exchanger surrounds paddle; Described workspace side-wall hole is connected to reflux line and self-loopa pipeline; Described temperature adjustment district side-wall hole is connected to the liquid injecting tube road.
2, a kind of thermostat according to claim 1 based on cold and hot liquids mixing temperature control, it is characterized in that: described heat exchanger is annular, serve as the thermostat diversing bucket, this heat exchanger outer wall is provided with heat exchanger liquid input tube road, heat exchanger liquid output pipe road, heat transferring medium input channel and heat transferring medium output channel; Wherein, described heat transferring medium input channel and heat transferring medium output channel vertically pass the workspace sidewall; Heat exchanger liquid output pipe road vertically passes the workspace sidewall, behind the tubing pump of connecting, connects self-loopa pipeline and liquid injecting tube road more respectively.
3, a kind of thermostat based on cold and hot liquids mixing temperature control according to claim 1, it is characterized in that: described liquid injecting tube road can further be connected with high-temp liquid flow in pipes and cryogenic liquid flow in pipes.
4, a kind of thermostat based on cold and hot liquids mixing temperature control according to claim 1, it is characterized in that: described self-loopa pipeline is positioned at the top, workspace.
5, a kind of thermostat according to claim 2 based on cold and hot liquids mixing temperature control, it is characterized in that: the direction in described heat exchanger liquid input tube road stretches into the workspace against the horizontal mixing direction in temperature adjustment district, tangent with the inner circumference in workspace, and continuing to extend one section circular arc along circumference at point of contact place, stream field is implemented rotation and is taken out stream and stir.
6, according to claim 1 or 4 described a kind of thermostats based on cold and hot liquids mixing temperature control, it is characterized in that: described self-loopa pipeline is to stretch into thermostat along the fluid level mixing direction, tangent with a certain circumference in the thermostat, and the place continues to stretch out one section circular arc along circumference at the point of contact, liquid is implemented rotating jet stir.
7, a kind of thermostat according to claim 1 based on cold and hot liquids mixing temperature control, it is characterized in that: the reflux line of described workspace sidewall is to stretch into thermostat against the horizontal mixing direction in temperature adjustment district, tangent with a certain circumference in the workspace, and continue to stretch out one section circular arc along circumference at point of contact place, liquid is implemented rotation take out stream and stir.
8, a kind of thermostat according to claim 1 based on cold and hot liquids mixing temperature control, it is characterized in that: described liquid injecting tube road stretches into thermostat along the horizontal mixing direction in temperature adjustment district, tangent with a certain circumference in the temperature adjustment district, and continue to go out one section circular arc along circumferential extension at point of contact place, liquid is implemented rotating jet stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101128223A CN101284251B (en) | 2008-05-26 | 2008-05-26 | Constant temperature bath based on mixing cold and hot liquid to control temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101128223A CN101284251B (en) | 2008-05-26 | 2008-05-26 | Constant temperature bath based on mixing cold and hot liquid to control temperature |
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| Publication Number | Publication Date |
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| CN101284251A true CN101284251A (en) | 2008-10-15 |
| CN101284251B CN101284251B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101128223A Expired - Fee Related CN101284251B (en) | 2008-05-26 | 2008-05-26 | Constant temperature bath based on mixing cold and hot liquid to control temperature |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608425A (en) * | 2017-09-27 | 2018-01-19 | 中国科学院理化技术研究所 | Constant temperature system |
| CN107727577A (en) * | 2016-08-10 | 2018-02-23 | 浜松光子学株式会社 | Determine container |
| CN109059298A (en) * | 2018-07-05 | 2018-12-21 | 中国矿业大学 | Fluid is from evenly mixing device |
| CN117075649A (en) * | 2023-10-13 | 2023-11-17 | 中科赛凌(中山)科技有限公司 | Quick temperature changing device and control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965388U (en) * | 1967-04-11 | 1967-08-03 | Erbsloeh Julius & August | FRAME PART WITH CONNECTING ARRANGEMENT. |
| DE2503248A1 (en) * | 1975-01-27 | 1976-07-29 | Seaplan Elekt Gmbh & Co Kg | Thermostatic bath with oil recycle - using non-insulated resistance wire with resistance element thermometer and controller |
| US6324857B1 (en) * | 1998-12-01 | 2001-12-04 | Julabo Labortechnik Gmbh | Laboratory thermostat |
| CN2359725Y (en) * | 1998-12-01 | 2000-01-19 | 中国科学院半导体研究所 | Thermostat |
| CN2522857Y (en) * | 2002-01-31 | 2002-11-27 | 长沙三德实业有限公司 | Sandwiched Water-circulation device of constant-temp. calorimetric instrument |
-
2008
- 2008-05-26 CN CN2008101128223A patent/CN101284251B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727577A (en) * | 2016-08-10 | 2018-02-23 | 浜松光子学株式会社 | Determine container |
| CN107608425A (en) * | 2017-09-27 | 2018-01-19 | 中国科学院理化技术研究所 | Constant temperature system |
| CN109059298A (en) * | 2018-07-05 | 2018-12-21 | 中国矿业大学 | Fluid is from evenly mixing device |
| CN109059298B (en) * | 2018-07-05 | 2020-11-03 | 中国矿业大学 | Fluid self-mixing device |
| CN117075649A (en) * | 2023-10-13 | 2023-11-17 | 中科赛凌(中山)科技有限公司 | Quick temperature changing device and control method |
| CN117075649B (en) * | 2023-10-13 | 2023-12-15 | 中科赛凌(中山)科技有限公司 | Quick temperature changing device and control method |
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| CN101284251B (en) | 2011-02-09 |
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Granted publication date: 20110209 Termination date: 20120526 |