CN217638558U - Surface tension detection device - Google Patents
Surface tension detection device Download PDFInfo
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- CN217638558U CN217638558U CN202221293615.4U CN202221293615U CN217638558U CN 217638558 U CN217638558 U CN 217638558U CN 202221293615 U CN202221293615 U CN 202221293615U CN 217638558 U CN217638558 U CN 217638558U
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- heat transfer
- surface tension
- temperature
- tension detecting
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Abstract
The utility model belongs to the technical field of liquid surface tension detection, and discloses a surface tension detection device, which comprises a shell and a temperature control mechanism, wherein a lifting mechanism, a heat transfer clamp, a measuring piece and an electronic balance are arranged in the shell from bottom to top in sequence; the measuring part is fixedly connected with a weighing disc of the electronic balance, the heat transfer fixture is driven by the lifting mechanism to lift, the heat transfer fixture is connected with the temperature control mechanism, a clamping space for clamping the experiment cup is arranged in the heat transfer fixture, when the experiment cup is arranged in the clamping space, the heat transfer fixture has a heat transfer effect on the experiment cup, the temperature of liquid to be detected in the experiment cup is adjusted through the temperature control mechanism, the adjustable range is-30 ℃ to 300 ℃, so that liquid surface tension detection modes with different temperatures can be provided, and the application scene range is widened.
Description
Technical Field
The utility model belongs to the technical field of liquid surface tension detects, concretely relates to surface tension detection device.
Background
The existing liquid surface tension measurement generally adopts a normal temperature measurement mode, so that the existing surface tension instrument/equipment is only limited to provide a normal temperature detection mode. However, some experiments require that the experimental sample can be measured only when reaching a certain temperature, and the existing surface tension instrument/equipment cannot be suitable, so that the application scenes of the existing surface tension instrument/equipment are few.
Disclosure of Invention
An object of the utility model is to provide a surface tension detection device can provide the liquid surface tension detection mode of different temperatures, and then widens application scene scope.
In order to achieve the purpose, the utility model provides a surface tension detection device, which comprises a shell and a temperature control mechanism, wherein a lifting mechanism, a heat transfer clamp, a measuring piece and an electronic balance are arranged in the shell from bottom to top in sequence; the measuring part is fixedly connected with a weighing disc of the electronic balance, the heat transfer fixture is driven by the lifting mechanism to lift, the heat transfer fixture is connected with the temperature control mechanism, a clamping space for clamping the experiment cup is arranged in the heat transfer fixture, and when the experiment cup is placed in the clamping space, the heat transfer fixture has a heat transfer effect on the experiment cup.
In some embodiments, a temperature measuring instrument is further disposed on the inner side wall of the housing, the temperature measuring instrument includes a temperature sensor and a temperature display, the temperature sensor and the temperature display are electrically connected, the temperature sensor is connected with the liquid to be measured in the test cup, and the temperature display is disposed on the inner side wall of the housing.
In some embodiments, a data collector is further disposed at the bottom of the housing, the data collector is electrically connected to the electronic balance, the lifting mechanism and the temperature measuring instrument, and the data collector is in communication connection with a terminal device.
In some embodiments, the measuring member is a closed or non-closed metal frame.
In some embodiments, the bottom of the shell is provided with a plurality of adjustable supporting seats, and the plurality of adjustable supporting seats are uniformly distributed at the bottom of the shell close to the edge.
In some embodiments, a support is arranged at the lower part in the shell, an elastic part is arranged at the top of the support, the heat transfer clamp is connected with the elastic part, and the heat transfer clamp is positioned on the elastic part.
In some embodiments, the support frame includes a support plate and a plurality of support rods, the plurality of support rods are disposed at the bottom of the support plate, the lifting mechanism is disposed between the plurality of support rods, and the elastic member is disposed at the top of the support plate.
In some embodiments, the temperature control mechanism includes a heating element and a controller that are electrically connected, a heating hole is formed on a side wall of the heat transfer fixture, and the heating element is inserted into the heating hole.
In some embodiments, the temperature control mechanism includes a water-side heat exchanger, the inner side wall of the heat transfer fixture is provided with a heat exchange channel, the heat transfer fixture is provided with an inlet and an outlet which are respectively communicated with two ends of the heat exchange channel, and the inlet and the outlet are respectively connected with the water-side heat exchanger through a heat exchange tube.
In some embodiments, a constant temperature refrigerant or heating agent is provided in the water side heat exchanger.
The utility model has the advantages that the provided surface tension detection device comprises a shell and a temperature control mechanism, wherein a lifting mechanism, a heat transfer clamp, a measuring piece and an electronic balance are arranged in the shell from bottom to top in sequence; the measuring part is fixedly connected with a weighing disc of the electronic balance, the heat transfer fixture is driven by the lifting mechanism to lift, the heat transfer fixture is connected with the temperature control mechanism, a clamping space used for clamping the experiment cup is arranged in the heat transfer fixture, when the experiment cup is arranged in the clamping space, the heat transfer fixture has a heat transfer effect on the experiment cup, therefore, the temperature of the liquid to be measured in the experiment cup can be adjusted by the temperature control mechanism, the adjustable range is-30 ℃ to 300 ℃, therefore, liquid surface tension detection modes with different temperatures can be provided, and further, the application scene range is widened.
Drawings
FIG. 1 is a schematic view of a surface tension detecting apparatus;
FIG. 2 is a schematic view of a partial cross-sectional view in another direction of the surface tension detecting device shown in FIG. 1;
FIG. 3 is a schematic view of a lift mechanism;
FIG. 4 is a schematic structural view of another surface tension detecting device;
fig. 5 is a schematic view of a partial cross-sectional view in another direction of the surface tension detecting apparatus shown in fig. 4.
Description of reference numerals:
10. a housing; 11. the supporting seat can be adjusted; 12. a support; 121. a support plate; 122. a support bar; 13. an elastic member; 20. a lifting mechanism; 21. a linear guide rail; 22. a slider; 23. a lifting rod; 24. a motor; 25. a fixing plate; 30. an experimental cup; 31. a temperature measuring instrument; 32. an electric heating clamp; 33. a water bath clamp; 40. a measuring member; 50. an electronic balance; 60. a data acquisition unit; 70. a heating member; 80. a controller; 90. a water side heat exchanger.
Detailed Description
In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.
As used herein, "first and second" \ 8230 "are used unless otherwise indicated or defined and are used merely to distinguish between names and do not denote any particular quantity or order.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.
It should be noted that "fixed" and "connected" in this document may be directly fixed or connected to one element or may be indirectly fixed or connected to one element.
Example one
As shown in fig. 1 to 3, an embodiment of the present invention discloses a surface tension detection device, which includes a housing 10 of a surface tension meter and a temperature control mechanism, wherein a lifting mechanism 20, a heat transfer fixture, a measuring part 40 and an electronic balance 50 are disposed in the housing 10, and are sequentially distributed from bottom to top; the measuring part 40 is fixedly connected with a weighing plate of the electronic balance 50, the heat transfer fixture is driven to ascend and descend by the elevating mechanism 20 and is connected with the temperature control mechanism, a clamping space for clamping the experiment cup 30 is arranged in the heat transfer fixture, and when the experiment cup 30 is arranged in the clamping space, the heat transfer fixture has a heat transfer effect on the experiment cup 30, so that the temperature of liquid to be measured in the experiment cup 30 can be adjusted by the temperature control mechanism.
The heat conducting material is selected as the heat conducting material, so that the heat conducting fixture has a heat conducting effect on the experiment cup 30, the temperature of the liquid to be detected in the experiment cup 30 is adjusted through the temperature control mechanism, the adjustable range is-30 ℃ to 300 ℃, and therefore liquid surface tension detection modes with different temperatures can be provided, and the application scene range is widened. Moreover, through control heat transfer anchor clamps drive experiment cup 30 and go up and down, compare the mode that traditional control top measuring part 40 goes up and down, can avoid measuring part 40 to rock and influence the experiment effect better.
The test cup 30 is a common beaker, and the size of the clamping space in the heat transfer fixture should be matched with the size of the test cup 30 to be equipped for use. In some embodiments, the heat transfer fixture may be configured as an adjustable heat transfer mechanism, such that the size of the clamping space may be flexibly adjusted to match different sized cuvettes 30.
In the present embodiment, as shown in fig. 3, the lifting mechanism 20 includes a linear guide 21, a slider 22 and a lifting rod 23, the slider 22 is slidably connected to the linear guide 21, the lifting rod 23 is fixedly connected to the slider 22, the lifting rod 23 is fixedly connected to the test cup 30, and the lifting rod 23 is located below the test cup 30.
In this embodiment, the lifting mechanism 20 further includes a motor 24, a fixing plate 25 and a screw rod 26, the slider 22 is sleeved outside the screw rod 26, the bottom end of the screw rod 26 is connected with the motor 24 through a coupler, the motor 24 is located below the linear guide rail 21, the screw rod 26 is rotatable under the driving action of the motor 24, the screw rod 26 is provided with a thread, and the thread can push the slider 22 to move up and down when rotating, so that the slider 22 is driven to slide back and forth in the length direction of the linear guide rail 21.
The fixed plate 25 is vertically arranged on one side of the linear guide rail 21, the linear guide rail 21 and the motor 24 are respectively fixed on the fixed plate 25, and the lifting rod 23 is positioned on one side of the slider 22 far away from the fixed plate 25. Wherein, one side of the slider 22 far away from the fixed plate 25 is fixedly connected with a jacking piece, and the jacking piece is fixedly connected with the lifting rod 23.
The measuring part 40 is a hanging ring or a hanging piece, preferably a metal part, and preferably made of platinum. When the measuring member 40 is a hanging ring, it may be a closed or non-closed metal frame, such as a closed platinum frame, i.e. a platinum ring.
Wherein, still be provided with high-accuracy temperature measurement appearance 31 on the inside wall of casing 10, temperature measurement appearance 31 includes electric connection's temperature sensor and temperature monitor, and temperature sensor is connected with the liquid that awaits measuring in the laboratory cup 30, and temperature monitor is arranged in on the inside wall of casing 10. By providing the highly accurate temperature measuring instrument 31, the actual temperature of the liquid to be measured can be reflected.
In this embodiment, the bottom of the housing 10 is further provided with a data acquisition unit 60, the data acquisition unit 60 is electrically connected to the electronic balance 50, the lifting mechanism 20 and the temperature measuring instrument 31 through USB communication lines, respectively, and the data acquisition unit 60 is in communication connection with the terminal device.
The data acquisition unit 60 is provided with a communication module therein, and can be in communication connection with terminal devices such as a computer, a mobile phone, and a tablet computer, so that the data acquisition unit 60 can collect information of the electronic balance 50, the lifting mechanism 20, and the temperature measuring instrument 31, and then transmit the information to the terminal devices.
In this embodiment, the material of the shell 10 is preferably a cold-rolled thin rigid plate (called cold plate for short), compared with a hot-rolled thin rigid plate (called hot plate for short), the surface quality of the cold plate is better than that of the hot plate, the mechanical property and the processing property are better than those of the hot plate, and the exterior of the shell 10 is fixedly assembled by bolts. The bottom of the shell 10 is provided with a plurality of adjustable supporting seats 11, and the plurality of adjustable supporting seats 11 are uniformly distributed at the bottom of the shell 10 near the edge. Through setting up adjustable supporting seat 11 of adjustable height, can adjust and make surface tension appearance use on horizontal position, be favorable to guaranteeing the experiment degree of accuracy.
Wherein, a support 12 is arranged at the lower part in the shell 10, an elastic part 13 is arranged at the top of the support 12, a heat transfer clamp is connected with the elastic part 13, and the heat transfer clamp is positioned on the elastic part 13. When the heat transfer fixture is driven to rise by the lifting mechanism 20, the elastic part 13 is subjected to tensile force; when the heat transfer jig is lowered by the elevating mechanism 20, the elastic member 13 is subjected to a compressive force.
In this embodiment, the bracket 12 in the housing 10 includes a supporting plate 121 and a plurality of supporting rods 122, the plurality of supporting rods 122 are disposed at the bottom of the supporting plate 121, a placing space is formed between the plurality of supporting rods 122, the lifting mechanism 20 is located in the placing space between the plurality of supporting rods 122, and the elastic member 13 is located at the top of the supporting plate 121.
In this embodiment, the temperature control mechanism includes electric connection's heating member 70 and controller 80, and the heat transfer anchor clamps specifically set up to electric heat anchor clamps 32, has seted up the heating hole on the lateral wall of electric heat anchor clamps 32, and heating member 70 inserts and locates to carry out electric heating in the heating hole, transfers heat to laboratory cup 30 through the wall of electric heat anchor clamps 32 to the liquid that awaits measuring in laboratory cup 30 also receives temperature variation. Among them, the heating member 70 is preferably a heating rod. The controller 80 is used to control the temperature of the heating element 70, i.e., the temperature required by the liquid to be tested in the test cup 30. Wherein the controller 80 may be arranged outside the housing 10.
When the device is used, a power supply is connected, the communication module arranged in the data acquisition unit 60 is in wireless communication connection with a computer, the wired communication connection between the data acquisition unit 60 and the electronic balance 50, the lifting mechanism 20 and the temperature measuring instrument 31 is checked, and computer test software is arranged to ensure successful communication.
Then the heating rod is inserted into the electric heating clamp 32 to heat, so that the liquid to be tested in the experiment cup 30 clamped in the electric heating clamp 32 is heated to an ideal experiment temperature, the highest temperature is 300 ℃, and then the computer runs software to control the lifting mechanism 20 to drive the electric heating clamp 32 to drive the experiment cup 30 to rise.
When the test cup 30 is lifted, the test cup 30 approaches the platinum ring until the platinum ring contacts the liquid to be measured, the platinum ring is subjected to interface tension of the liquid to be measured and then is transmitted to the electronic balance 50, and accordingly the reading value of the electronic balance 50 is transmitted to the computer. The detection device is a specific heating device, so that the controller 80 is powered on to be well adjusted when the steps are performed, so as to adjust the ideal experiment temperature to be reached by the liquid to be detected.
When the top edge of the platinum ring is just positioned on the liquid level of the liquid to be measured, reading the reading W1 of the electronic balance 50; when the platinum ring is pulled out of the liquid level from the liquid to be measured, the reading W of the balance is firstly increased and then decreased until the liquid film is broken, at the moment, the maximum reading W2 of the electronic balance 50 in the process is taken, the surface tension value of the liquid to be measured is calculated to be F = (W1-W2) g, the width L of the platinum ring is measured by a vernier caliper, and the surface tension coefficient a of the liquid to be measured at different temperatures can be obtained. Wherein g is the local gravitational acceleration and d is the wire diameter of the platinum ring.
Implement this embodiment, through the temperature control mechanism who utilizes electric heating, reach certain temperature in the control sample container, can be accurate grasp temperature rise and decline, when reaching certain temperature, utilize electronic balance 50 to measure the surface tension of sample and obtain data, electronic balance 50 receives and is connected to data collection station 60 with the USB communication line after the data, uploads the computer again and observes data, and is accurate through temperature control, can make the sample data that record more accurate.
The surface tension detection device has a compact structure, reduces the equipment cost, and is simple and easy to maintain and operate. In addition, the matched software can be automatically measured only by one-key starting, the efficiency and the manual error are improved, a large amount of time is saved, and the operation and data storage are more efficient and convenient.
Example two
As shown in fig. 4 to 5, the embodiment of the present invention discloses another surface tension detecting device, which is mostly the same as the surface tension detecting device shown in the first embodiment, except for a temperature control mechanism. The difference lies in, temperature control mechanism includes water side heat exchanger 90, and heat transfer anchor clamps specifically set up to water bath anchor clamps 33, and the inside wall of water bath anchor clamps 33 is equipped with the heat transfer passageway, sets up import and the export that is linked together with the both ends of heat transfer passageway respectively on the water bath anchor clamps 33, and water side heat exchanger 90 is connected with two heat exchange tubes, is drain pipe and feed liquor pipe respectively, the import of drain pipe intercommunication heat transfer passageway, the export of feed liquor pipe intercommunication heat transfer passageway. Wherein, a low temperature constant temperature groove is arranged in the water side heat exchanger 90, and a constant temperature liquid medium, such as a refrigerant or a heating agent, is arranged in the groove.
Before the experiment, the water side heat exchanger 90 is powered on, the liquid medium in the water side heat exchanger 90 reaches the ideal experiment temperature of the liquid to be tested, and then the liquid medium is transmitted to the water bath clamp 33 for refrigeration through the refrigerant as the liquid medium, or the liquid medium is transmitted to the water bath clamp 33 for heating through the heating agent as the liquid medium, and the temperature of the liquid to be tested in the experiment cup 30 is controlled through the heat transfer effect of the water bath clamp 33 on the experiment cup 30.
Here, cooling or heating is performed by using a liquid medium as a heat transfer medium, and the direction of an arrow in the drawing indicates the direction in which the liquid medium flows. The liquid medium is generally water, but is not limited to water, and synthetic cooling liquid can be used when low temperature and constant temperature are required. The temperature of the liquid medium may be detected by a temperature sensor to implement control of cooling and heating. The water side heat exchanger 90 is further provided with an inner circulating pump and an outer circulating pump, the inner circulating pump is used for inner circulating connection, the outer circulating pump is used for outer circulating connection, and the circulating pump can lead out the constant temperature liquid in the low temperature constant temperature bath to establish a second constant temperature field.
For vibration damping and vibration isolation, the liquid outlet pipe and the liquid inlet pipe are connected to the inner circulating pump and the outer circulating pump through insulating heat insulation hoses, one end, far away from the water side heat exchanger 90, of the liquid outlet pipe is connected to an inlet of the water bath clamp 33 through the insulating heat insulation hoses, and one end, far away from the water side heat exchanger 90, of the liquid inlet pipe is connected to an outlet of the water bath clamp 33 through the insulating heat insulation hoses, so that closed medium circulation is formed.
By implementing the embodiment, the liquid to be tested in the experiment cup 30 can be accurately controlled to be heated or cooled, and then a test experiment is carried out, so that the test can be carried out at an ideal experiment temperature point of the liquid to be tested; the full-closed compressor is adopted for refrigeration, and the fluoride-free environment-friendly refrigeration technology is adopted, so that energy is saved and consumption is reduced; in addition, the refrigerating system is provided with a multiple protection device for overheat and overcurrent, and the upper and lower limit temperature reading alarm can be set.
The above examples are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.
Claims (10)
1. The surface tension detection device is characterized by comprising a shell and a temperature control mechanism, wherein a lifting mechanism, a heat transfer clamp, a measuring piece and an electronic balance are sequentially arranged in the shell from bottom to top; the measuring part is fixedly connected with a weighing disc of the electronic balance, the heat transfer fixture is driven by the lifting mechanism to lift, the heat transfer fixture is connected with the temperature control mechanism, a clamping space for clamping the experiment cup is arranged in the heat transfer fixture, and when the experiment cup is placed in the clamping space, the heat transfer fixture has a heat transfer effect on the experiment cup.
2. The surface tension detecting device as claimed in claim 1, wherein a temperature measuring instrument is further disposed on the inner sidewall of the housing, the temperature measuring instrument includes a temperature sensor and a temperature display electrically connected to each other, the temperature sensor is connected to the liquid to be measured in the test cup, and the temperature display is disposed on the inner sidewall of the housing.
3. The surface tension detecting device of claim 2, wherein a data collector is further disposed at the bottom of the housing, the data collector is electrically connected to the electronic balance, the lifting mechanism and the temperature measuring instrument, and the data collector is in communication connection with a terminal device.
4. The surface tension detecting apparatus as claimed in claim 1, wherein the measuring member is a closed or non-closed metal frame.
5. The surface tension detecting apparatus as claimed in claim 1, wherein the bottom of the housing is provided with a plurality of adjustable supporting seats, and the plurality of adjustable supporting seats are uniformly distributed at a position close to the edge of the bottom of the housing.
6. The surface tension detecting apparatus as claimed in claim 1, wherein a support is provided at a lower portion in the housing, an elastic member is provided at a top portion of the support, the heat transfer jig is connected to the elastic member, and the heat transfer jig is located on the elastic member.
7. The surface tension detecting apparatus as claimed in claim 6, wherein the bracket includes a supporting plate and a plurality of supporting rods, the plurality of supporting rods are disposed at a bottom of the supporting plate, the elevating mechanism is disposed between the plurality of supporting rods, and the elastic member is disposed at a top of the supporting plate.
8. The surface tension detecting device as claimed in any one of claims 1 to 7, wherein the temperature control mechanism comprises a heating element and a controller which are electrically connected, a heating hole is formed on a side wall of the heat transfer jig, and the heating element is inserted into the heating hole.
9. The surface tension detecting device as claimed in any one of claims 1 to 7, wherein the temperature control mechanism comprises a water-side heat exchanger, the inner side wall of the heat transfer fixture is provided with a heat exchange channel, the heat transfer fixture is provided with an inlet and an outlet which are respectively communicated with two ends of the heat exchange channel, and the inlet and the outlet are respectively connected with the water-side heat exchanger through a heat exchange tube.
10. The surface tension detecting device as claimed in claim 9, wherein a refrigerant or a heating agent is provided in the water side heat exchanger at a constant temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221293615.4U CN217638558U (en) | 2022-05-26 | 2022-05-26 | Surface tension detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221293615.4U CN217638558U (en) | 2022-05-26 | 2022-05-26 | Surface tension detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217638558U true CN217638558U (en) | 2022-10-21 |
Family
ID=83657463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221293615.4U Active CN217638558U (en) | 2022-05-26 | 2022-05-26 | Surface tension detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217638558U (en) |
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2022
- 2022-05-26 CN CN202221293615.4U patent/CN217638558U/en active Active
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