CN117387242A - Portable ice water bath device - Google Patents
Portable ice water bath device Download PDFInfo
- Publication number
- CN117387242A CN117387242A CN202311319498.3A CN202311319498A CN117387242A CN 117387242 A CN117387242 A CN 117387242A CN 202311319498 A CN202311319498 A CN 202311319498A CN 117387242 A CN117387242 A CN 117387242A
- Authority
- CN
- China
- Prior art keywords
- water bath
- ice water
- temperature regulating
- regulating device
- ice
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000005457 ice water Substances 0.000 title claims abstract description 24
- 239000004065 semiconductor Substances 0.000 claims abstract description 38
- 239000010410 layer Substances 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 description 30
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a portable ice water bath device, and relates to the technical field of water bath devices. The refrigerator comprises a refrigerator body, wherein the refrigerator body adopts an inner layer and outer layer structure, a semiconductor refrigerating sheet is arranged between the inner layer and the outer layer in an interlayer manner, a temperature regulating device is arranged at one end of the refrigerator body, and the semiconductor refrigerating sheet is electrically connected with the temperature regulating device; and a cooling fan is arranged at one end of the box body far away from the temperature regulating device. The device reduces temperature fluctuation caused by the need of self-advancing frozen ice and ice-sinking under the experimental conditions of the traditional laboratory ice water bath and ice melting in the experimental process, thereby solving the problems of inaccuracy of experimental results and waste caused by chemical reaction which is not maximized.
Description
Technical Field
The invention relates to the technical field of water bath devices, in particular to a portable ice water bath device.
Background
The semiconductor refrigeration is also called thermoelectric refrigeration, and is a novel refrigeration mode by utilizing P-N junction formed by special semiconductor material to form thermocouple pair and utilizing direct current to make refrigeration. Compared with the traditional refrigeration technology, the method has the advantages that: (1) The structure is simple, no mechanical moving parts are provided, no noise, no abrasion, no pollution, long service life and high reliability are provided; (2) the refrigerating and heating speed is high, and the control is flexible and reliable; (3) The cold-hot conversion is reversible, and the semiconductor can be converted between the refrigerating and heating modes only by changing the current direction; (4) the thermopiles can be arranged at will and can be variable in size and shape.
Aiming at the situation that the traditional ice water bath situation is much limited, the assembly of the semiconductor refrigerating sheet and the temperature regulating device is used for refrigerating, so that the technical problem which is urgently needed to be solved by the person skilled in the art is solved.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the portable ice water bath device which reduces the temperature fluctuation caused by the need of self-advancing frozen ice and ice sinking under the experimental conditions of the traditional laboratory ice water bath and the ice melting in the experimental process, thereby solving the problems of inaccuracy of experimental results and waste caused by the fact that chemical reaction is not maximized.
In order to achieve the above object, the present invention provides a portable ice water bath apparatus, comprising: the refrigerator comprises a refrigerator body, wherein the refrigerator body adopts an inner layer and an outer layer, a semiconductor refrigerating sheet is arranged between the inner layer and the outer layer in an interlayer manner, a temperature regulating device is arranged at one end of the refrigerator body, and the semiconductor refrigerating sheet is electrically connected with the temperature regulating device; and a cooling fan is arranged at one end of the box body, which is far away from the temperature regulating device.
Further, the refrigerator further comprises an electric storage device, wherein the electric storage device is arranged on one side of the box body and used for providing needed electric energy for the semiconductor refrigerating sheet, the temperature regulating device and the cooling fan.
Further, an insulating layer is arranged on the inner wall of the inner layer of the box body.
Further, two refrigeration sheets are connected in series to form a group, and the two groups are connected in parallel and are respectively arranged in interlayers at the left side and the right side of the box body.
The invention has the beneficial effects that:
(1) The device has the advantages of high refrigeration efficiency, high control precision, good box reliability and stable performance, can reduce resource waste, is more convenient to use, and is convenient to form an automatic control system.
(2) The device has reduced the temperature fluctuation that needs ice-freezing in advance, ice-sinking and the ice-cube melts in the experimental process by oneself under the experimental condition of traditional laboratory ice water bath to the inaccuracy of experimental result and the problem of chemical reaction waste that thereby causes have not reached the maximize have been solved.
(3) The device does not need any refrigerant, can continuously work, does not have a pollution source, does not have a rotating part, does not generate a turning effect, does not have a sliding part and is a solid piece, and has the advantages of no vibration, no noise, long service life and easy installation during working.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic diagram of the operation of the semiconductor refrigeration sheet of the present invention;
FIG. 5 is a graph of refrigeration capacity at different cold end temperatures of a semiconductor refrigeration sheet of the present invention;
FIG. 6 is a closed loop temperature control block diagram of the ice water bath apparatus of the present invention.
Wherein, in the figure:
1-a box body; 2-a temperature regulating device; 3-a heat dissipation fan.
Detailed Description
In order to achieve the above objects and effects, the present invention adopts the technical means and structure, and the features and functions of the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Aiming at the situation that the traditional ice water bath situation is much limited, the invention uses the semiconductor refrigeration piece TEC-12708 and the temperature regulation device to carry out refrigeration. The best refrigerating result is achieved by utilizing different assembly modes of the semiconductor refrigerating plate TEC-12708, so that the resource consumption is reduced.
As shown in fig. 1 to 3, the present invention provides a portable ice water bath apparatus, comprising: the refrigerator comprises a refrigerator body 1, wherein the refrigerator body adopts an inner layer and an outer layer, a semiconductor refrigerating sheet is arranged between the inner layer and the outer layer in an interlayer manner, a temperature regulating device 2 is arranged at one end of the refrigerator body, and the semiconductor refrigerating sheet is electrically connected with the temperature regulating device; and a cooling fan 3 is arranged at one end of the box body 1 far away from the temperature regulating device. The temperature is convenient to be better regulated and controlled by the temperature regulating device. The heat dissipation fan 3 has the function that the semiconductor refrigeration chips TEC-12708 emit heat in the refrigeration process, so that the heat is necessarily removed in time. The two sides of the radiating fin of the semiconductor refrigerating fin used in the invention are provided with the radiating fans, the types of the two radiating fans are identical, the installation directions are identical, and the blowing directions are identical. The heat dissipation fan discharges the heat emitted by the system due to the operation of the semiconductor refrigerating sheet, so that the refrigerating effect of the device is prevented from being influenced, and meanwhile, heat is timely dissipated, and the semiconductor refrigerating sheet is prevented from being operated for a long time without dissipating heat to cause burning.
The invention also comprises an electricity storage device which is arranged on one side of the box body and is used for storing electricity and providing the needed electric energy for the semiconductor refrigerating sheet, the temperature regulating device and the cooling fan, and the invention is convenient to use in the environment without electricity and plug, thus providing a good ice-water bath environment.
In this embodiment, be provided with the heat preservation on the inner wall of box inlayer, the heat preservation adopts the material that heat preservation effect is good to make.
In this embodiment, two refrigeration sheets are connected in series to form a group, and the two groups are connected in parallel and are respectively arranged in interlayers at the left side and the right side of the box body.
Referring to fig. 4, the semiconductor refrigeration sheet operates as follows:
the semiconductor refrigeration sheet assemblies are mainly of two types: single and multi-stage thermopiles. Multistage thermopiles can achieve lower cold end temperatures, but are relatively complex to fabricate. For the refrigeration requirement of the ice water bath device, a single-stage refrigeration piece assembly which is common in the market and easy to purchase is selected. Because the ice water bath power supply is designed to supply power for 24V direct current, TEC-12708 single-stage semiconductor refrigerating sheets are selected, the rated voltage is DC12V, and the surface heat-conducting silica gel is adopted for erection and fixation.
According to the basic theory of the semiconductor refrigeration technology, the refrigeration capacity of the semiconductor refrigeration sheet is known as follows:
the power consumption is as follows:
the refrigeration coefficient is:
wherein alpha is p ，α N Thermoelectric coefficients of P-type and N-type couples; i is the intensity of the electrified current; t (T) C Cold end temperature; r is the resistance value of the semiconductor refrigeration element; k is a heat conductivity coefficient; delta T is the temperature difference between the cold end face and the hot end face.
As can be seen from the above equation, the current intensity I of the cooling fin is one of the main factors affecting the cooling capacity.
Ideally, the maximum current value allowed by the refrigerating plate should be the optimal working current, but in actual working, the voltage reaches the maximum working limit when the maximum current is not reached, so that the refrigerating capacity of the refrigerating plate working at the rated voltage is the maximum refrigerating capacity which can be ensured under the condition of good heat dissipation.
According to actual calculation, the theoretical calculation value of the heat load of the portable ice water bath device is 40.6W, and the maximum refrigerating capacity of the selected refrigerating sheet is 83.9W; in addition, considering that the heat demand in practical application is larger than the theoretical value, the refrigerating efficiency of the selected semiconductor refrigerating sheets is generally 20-60%, and the system finally adopts 4 semiconductor refrigerating sheets to cool the space. Because the volume of the TEC-12708 single-stage semiconductor refrigerating sheet is 40 multiplied by 3.6mm, a certain space is reserved in the device by considering the length of the device, every two refrigerating sheets are connected in series into one group, and the two groups are connected in parallel and are respectively arranged on the left side and the right side of the box body. Fig. 5 shows the refrigeration capacity of the semiconductor refrigeration piece at different cold end temperatures.
Parameter comparisons for different types of semiconductor refrigeration sheets are shown in table 1:
TABLE 1
After the semiconductor refrigerating sheet is designed, the temperature regulating device is adopted to control the semiconductor refrigerating sheet to work, the PID controller is adopted to control the temperature of the temperature regulating device, and a closed-loop temperature control block diagram of the ice water bath device is shown in figure 6.
After the design and development of the experimental device are completed, experimental test results are carried out, and the fact that the ice water bath device reaches the temperature required in the experiment in a short period of several minutes is found.
The device has the advantages of high refrigeration efficiency, high control precision, good reliability of the box body and stable performance, can reduce resource waste, is more convenient to use, and is convenient to form an automatic control system. The device has reduced the temperature fluctuation that needs ice-freezing in advance, ice-sinking and the ice-cube melts in the experimental process by oneself under the experimental condition of traditional laboratory ice water bath to the inaccuracy of experimental result and the problem of chemical reaction waste that thereby causes have not reached the maximize have been solved. The device does not need any refrigerant, can continuously work, does not have a pollution source, does not have a rotating part, does not generate a turning effect, does not have a sliding part and is a solid piece, and has the advantages of no vibration, no noise, long service life and easy installation during working.
With the continuous development of semiconductor refrigeration technology in recent years, the temperature control system has the advantages of small occupied space, high efficiency, strong functionality and the like. The experiment of applying the semiconductor refrigeration piece in the low-temperature environment required by the laboratory can save a large amount of resources, and has good development prospect in the future.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (4)
1. A portable ice water bath apparatus, comprising: the refrigerator comprises a refrigerator body, wherein the refrigerator body adopts an inner layer and an outer layer, a semiconductor refrigerating sheet is arranged between the inner layer and the outer layer in an interlayer manner, a temperature regulating device is arranged at one end of the refrigerator body, and the semiconductor refrigerating sheet is electrically connected with the temperature regulating device; and a cooling fan is arranged at one end of the box body, which is far away from the temperature regulating device.
2. The portable ice water bath apparatus according to claim 1, further comprising an electricity storage device installed at one side of the case for providing necessary electric power to the semiconductor cooling sheet, the temperature controlling device and the heat dissipating fan.
3. The portable ice water bath device according to claim 1, wherein an insulation layer is provided on an inner wall of the inner layer of the case.
4. The portable ice-water bath device according to claim 1, wherein two refrigerating sheets are connected in series to form a group, and the two groups are connected in parallel and are respectively arranged in interlayers at the left side and the right side of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311319498.3A CN117387242A (en) | 2023-10-12 | 2023-10-12 | Portable ice water bath device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311319498.3A CN117387242A (en) | 2023-10-12 | 2023-10-12 | Portable ice water bath device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117387242A true CN117387242A (en) | 2024-01-12 |
Family
ID=89465889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311319498.3A Pending CN117387242A (en) | 2023-10-12 | 2023-10-12 | Portable ice water bath device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117387242A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727185Y (en) * | 2004-06-09 | 2005-09-21 | 李勇 | Incubation device with ice bath |
| CN202366672U (en) * | 2011-12-29 | 2012-08-08 | 佳木斯大学 | Small-sized stirring type ice-bath device |
| CN203258921U (en) * | 2013-04-10 | 2013-10-30 | 昆明冶金高等专科学校 | Novel air conditioning refrigerator |
| CN110878999A (en) * | 2019-11-21 | 2020-03-13 | 北京世纪泽润科技有限公司 | Portable refrigerator based on semiconductor refrigeration |
| CN112827526A (en) * | 2020-12-30 | 2021-05-25 | 济宁市鸿翔公路勘察设计研究院有限公司 | Automatic purification efficient constant-temperature water bath box for laboratory |
| CN214390242U (en) * | 2021-02-21 | 2021-10-15 | 张明磊 | Building material alkali-resistant constant-temperature water bath test box |
| CN219400227U (en) * | 2023-03-30 | 2023-07-25 | 嘉兴职业技术学院 | Novel ice water bath device |
| CN219641381U (en) * | 2023-04-24 | 2023-09-05 | 上海荣计达仪器科技有限公司 | Water bath temperature control device and cement component tester |
| CN116707443A (en) * | 2023-01-09 | 2023-09-05 | 福建省计量科学研究院（福建省眼镜质量检验站） | Method and equipment for testing solar cell |
-
2023
- 2023-10-12 CN CN202311319498.3A patent/CN117387242A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727185Y (en) * | 2004-06-09 | 2005-09-21 | 李勇 | Incubation device with ice bath |
| CN202366672U (en) * | 2011-12-29 | 2012-08-08 | 佳木斯大学 | Small-sized stirring type ice-bath device |
| CN203258921U (en) * | 2013-04-10 | 2013-10-30 | 昆明冶金高等专科学校 | Novel air conditioning refrigerator |
| CN110878999A (en) * | 2019-11-21 | 2020-03-13 | 北京世纪泽润科技有限公司 | Portable refrigerator based on semiconductor refrigeration |
| CN112827526A (en) * | 2020-12-30 | 2021-05-25 | 济宁市鸿翔公路勘察设计研究院有限公司 | Automatic purification efficient constant-temperature water bath box for laboratory |
| CN214390242U (en) * | 2021-02-21 | 2021-10-15 | 张明磊 | Building material alkali-resistant constant-temperature water bath test box |
| CN116707443A (en) * | 2023-01-09 | 2023-09-05 | 福建省计量科学研究院（福建省眼镜质量检验站） | Method and equipment for testing solar cell |
| CN219400227U (en) * | 2023-03-30 | 2023-07-25 | 嘉兴职业技术学院 | Novel ice water bath device |
| CN219641381U (en) * | 2023-04-24 | 2023-09-05 | 上海荣计达仪器科技有限公司 | Water bath temperature control device and cement component tester |
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