CN219496064U - Variable-temperature liquid surface tension coefficient tester - Google Patents
Variable-temperature liquid surface tension coefficient tester Download PDFInfo
- Publication number
- CN219496064U CN219496064U CN202320634193.0U CN202320634193U CN219496064U CN 219496064 U CN219496064 U CN 219496064U CN 202320634193 U CN202320634193 U CN 202320634193U CN 219496064 U CN219496064 U CN 219496064U
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- Prior art keywords
- water tank
- surface tension
- base
- liquid surface
- temperature
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- 239000007788 liquid Substances 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000008236 heating water Substances 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 238000004321 preservation Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 14
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000003028 elevating effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a variable-temperature liquid surface tension coefficient tester, which comprises a base and a supporting rod arranged on the base, wherein the supporting rod is provided with a plurality of measuring units; the lifting platform is characterized in that the lifting platform is arranged on the base; a heating water tank is arranged on the lifting table; the pressure testing component is arranged on the supporting rod; the lifting platform is provided with a photoelectric door assembly; the heating water tank comprises a water tank vessel, a heat preservation cover arranged outside the water tank vessel and a heating assembly arranged on the water tank vessel. According to the utility model, the temperature of the liquid to be measured is changed by utilizing the heating water tank, so that the surface tension coefficients of the liquid under different temperature conditions can be conveniently measured by using a pull-off method; through utilizing the code wheel on the photoelectric door subassembly to rotate along with the elevating platform, the logical light hole of code wheel touches the switch of photoelectric door and closes, detects the photoelectric door condition of change with singlechip control system, realizes that 50 pulse signals appear in the code wheel rotation a week, uses high-low level technique, realizes 0.01 mm's upper and lower displacement detection to obtain the variation relationship of liquid film height and pulling force size.
Description
Technical Field
The utility model relates to the technical field of liquid surface tension coefficient measurement, in particular to a variable-temperature liquid surface tension coefficient measuring instrument.
Background
The liquid surface tension coefficient is an important parameter for expressing the liquid property, the pull-out method is to directly measure the surface tension of the liquid by using a weighing instrument, the measuring method is visual, the concept is clear, and the method is a common method for measuring the surface tension of the liquid, in the prior art, for example, the Chinese patent with the publication time of 2013, 5 months and 15U discloses a liquid surface tension coefficient measuring device, and the Chinese patent with the publication number of CN202939112U comprises the following steps: the device comprises a base, wherein the base is connected with a tray through a support column, a liquid vessel is arranged on the tray, an annular hanging piece is arranged above the liquid vessel, the annular hanging piece is connected with a cross beam internally provided with a force sensor, the cross beam is arranged on a bracket, a lifting adjusting mechanism is arranged on the bracket, the bracket is fixedly arranged on the base, and the force sensor is connected with a liquid surface tension coefficient tester;
the force-sensitive sensor is connected with the liquid surface tension coefficient tester, so that the measurement result is easy to observe, the adjustment steps are reduced, the operation is convenient, the air flow interference is avoided, the measurement error is small, the precision is high, the experimental principle expression is clear and visual, and the method can be widely applied to experiments and scientific researches of physics, chemistry and the like;
however, the technical scheme of the utility model can only test the surface tension coefficient of the liquid at normal temperature on the same test frame, and can not test the liquid at different temperatures on the same test frame, thereby reducing the experimental range. For this purpose, a temperature-variable liquid surface tension coefficient measuring instrument is proposed.
Disclosure of Invention
The utility model aims to solve the problems and provides a temperature-changing liquid surface tension coefficient tester.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a temperature-changing liquid surface tension coefficient tester comprises a base and a supporting rod arranged on the base; the lifting platform is characterized in that the lifting platform is arranged on the base; a heating water tank is arranged on the lifting table; the pressure testing component is arranged on the supporting rod; the lifting platform is provided with a photoelectric door assembly; the heating water tank comprises a water tank vessel, a heat preservation cover arranged outside the water tank vessel and a heating assembly arranged on the water tank vessel.
Preferably, the heating water tank is arranged on the lifting table through a heat preservation cover; the heating component comprises a plurality of heating plates, a temperature sensor and a temperature switch which are arranged on the water tank vessel.
Preferably, a switch pressing plate is also arranged on the water tank vessel; the temperature switch is fixed on the water tank vessel through a switch pressing plate.
Preferably, the lifting platform comprises a guide sleeve arranged on the base, a rotating sleeve arranged outside the guide sleeve, a telescopic rod movably arranged in the rotating sleeve and a tray arranged on the telescopic rod; the photoelectric door assembly is arranged on the rotating sleeve and the base.
Preferably, a guide pin is arranged on the telescopic rod; the guide sleeve is provided with a guide groove.
Preferably, the photoelectric door assembly comprises a code disc arranged on the rotating sleeve and a photoelectric door which is matched with the code disc and fixed on the base.
Preferably, the base is also provided with a plurality of horizontal adjusting screws.
Preferably, the pressure testing assembly comprises a fixing seat arranged on the supporting rod, a pressure sensor arranged on the fixing seat and a hanging ring connected with the pressure sensor.
The utility model has the beneficial effects that: the temperature of the liquid to be measured is changed by utilizing the heating water tank, so that the surface tension coefficients of the liquid under different temperature conditions can be conveniently measured by using a pull-off method;
through utilizing the code wheel on the photoelectric door subassembly to rotate along with the elevating platform, the light hole on the code wheel can play the switch of touching the photoelectric door, detects the change condition of photoelectric door with singlechip control system, realizes that 50 pulse signals appear in every rotatory a week of code wheel to use high-low level technique, can realize 0.01 mm's upper and lower displacement detection, thereby obtain the variation relationship of liquid film height and pulling force size.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of the present utility model.
FIG. 3 is a schematic view of the structure of the heating water tank of the present utility model.
Fig. 4 is a schematic view of the structure of the elevating platform of the present utility model.
Legend description: 1, a base; 101 a horizontal adjusting screw; 2, supporting rods; 3 lifting platform; 301 a guide sleeve; 302 rotating the sleeve; 303 telescoping rod; 304 trays; 305 guide pins; 306 guide slots; 4, heating the water tank; 401 sink vessel; 402 a thermal insulation cover; 403 a heating assembly; 404 heating the sheet; a 405 temperature sensor; 406 a temperature switch; 407 switching a pressure plate; 5, a pressure testing assembly; 501 a fixed seat; 502 a pressure sensor; 503 hanging rings; 6, a photoelectric door assembly; 601 code wheel; 602 a photogate.
Detailed Description
The utility model further provides a temperature-changing liquid surface tension coefficient tester with reference to the attached drawings.
Referring to fig. 1-4, a temperature-changing liquid surface tension coefficient measuring instrument in this embodiment includes a base 1 and a supporting rod 2 mounted on the base 1; the lifting platform is characterized in that a lifting platform 3 is arranged on the base 1; a heating water tank 4 is arranged on the lifting table 3; the pressure testing assembly 5 is arranged on the supporting rod 2; the lifting platform 3 is provided with a photoelectric door assembly 6; the heating water tank 4 comprises a water tank vessel 401, a heat preservation cover 402 arranged outside the water tank vessel 401 and a heating component 403 arranged on the water tank vessel 401; the temperature of the liquid to be tested is changed by utilizing the heating water tank 4, so that the surface tension coefficients of the liquid under different temperature conditions can be conveniently measured by using a pull-off method, and the experimental range is enlarged; through utilizing code wheel 601 on the photoelectric door subassembly 6 to rotate along with elevating platform 3, the light hole on the code wheel 601 can play the switch that triggers the photoelectric door 602, detects the change condition of photoelectric door with singlechip control system, realizes that 50 pulse signals appear in every rotatory a week of code wheel 601 to use high-low level technique, can realize 0.01 mm's displacement detection from top to bottom, thereby obtain the variation relationship of liquid film height and pulling force size.
Referring to fig. 1-4, the heating water tank 4 is installed on the lifting platform 3 through a heat preservation cover 402; the heating assembly 403 comprises a plurality of heating plates 404, a temperature sensor 405 and a temperature switch 406 which are mounted on the sink vessel 401 by screws; a switch pressing plate 407 is also arranged on the water tank vessel 401; the temperature switch 406 is fixed on the water tank vessel 401 through a switch pressing plate 407; the liquid in the water tank vessel 401 is heated by the heating plate 404, so that the surface tension coefficients of the liquid under different temperature conditions can be conveniently measured by using a pull-off method, and the experimental range is enlarged.
Referring to fig. 1-4, the lifting platform 3 comprises a guide sleeve 301 installed on the base 1, a rotating sleeve 302 installed outside the guide sleeve 301, a telescopic rod 303 movably installed in the rotating sleeve 302 through threads, and a tray 304 installed on the telescopic rod 303 through screws; the photoelectric door assembly 6 is arranged on the rotating sleeve 302 and the base 1; a guide pin 305 is mounted on the telescopic rod 303; a guide groove 306 is arranged on the guide sleeve 301; the photoelectric door assembly 6 comprises a code disc 601 arranged on the rotating sleeve 302, and a photoelectric door 602 which is matched with the code disc 601 and fixed on the base 1; through rotatory cover 302, the rotation of cover 302 is because of driving telescopic link 303 motion for threaded connection with telescopic link 303, drive code wheel 601 simultaneously and rotate, the light-passing hole on the code wheel 601 can play the switch of touching luminous electric door 602, detect the change condition of luminous electric door 602 with singlechip control system, realize that 50 pulse signals appear in every rotatory a week of code wheel 601, and use high-low level technique, can realize 0.01 mm's displacement detection from top to bottom, thereby obtain the variation relationship of liquid film height and pulling force size, telescopic link 303 drives guide pin 305 and moves along guide slot 306 on the guide link 301, drive tray 304 motion simultaneously, tray 304 drives heating basin 4 and moves, thereby be convenient for drive the lift of heating basin 4.
Referring to fig. 1-4, the base 1 is further provided with a plurality of horizontal adjusting screws 101; the pressure testing assembly 5 comprises a fixed seat 501 arranged on the supporting rod 2, a pressure sensor 502 arranged on the fixed seat 501 and a hanging ring 503 connected with the pressure sensor 502.
In the utility model, a pressure sensor 502, a heating water tank 4 and a photoelectric door 602 on a base 1 are respectively connected with a tester, the pressure sensor 502 is calibrated firstly, a power switch of the tester is turned on, the tester is preheated and enters a sensor sensitivity measurement experiment interface, then a weight plate is hung on a small hook at the end of the pressure sensor 502, and a tension value is set to be zero; then the base is adjusted to be horizontal through a horizontal bubble, weights with the mass of 0g, 0.5g, 1.0g, 1.5g, 2.0g and the like are loaded on a weight tray, the voltage value on the tester to be tested is stable, the voltage value under the action of gravity on the weights is recorded on the static condition of the weight tray, and then a sensitivity button on the tester is pressed to obtain the sensitivity K of the pressure sensor;
then measuring the outer diameter D1 and the inner diameter D2 of the metal ring on the hanging ring 503 by using a vernier caliper, placing the hanging ring 503 in NaOH solution for soaking for 20-30 seconds before experiments, cleaning by using purified water, cleaning a water tank vessel, and adding liquid to be tested;
then hanging a lifting ring 503 on a small hook at the end of a pressure sensor 502, putting the tester into a liquid surface tension coefficient measurement experiment interface, setting a pulling force value to be zero, setting a proper threshold voltage, then driving the telescopic rod 303 to move upwards by rotating the rotary sleeve 302 through threaded connection with the telescopic rod 303, driving the telescopic rod 303 to drive the guide pin 305 to move upwards along a guide groove 306 on the guide sleeve 301, simultaneously driving the tray 304 to move, driving the heating water tank 4 to move upwards by the tray 304 until the lower edge part of the lifting ring 503 is completely immersed into liquid to be tested, setting displacement to be zero on the tester, pressing a start button, then reversely rotating the rotary sleeve 302, driving the telescopic rod 303 to move downwards by threaded connection with the rotary sleeve 302, driving the guide pin 305 to move downwards along the guide groove 306 on the guide sleeve 301, simultaneously driving the tray 304 to drive the heating water tank 4 to move downwards, forming an annular liquid film between the lifting ring 503 and the liquid surface, continuing to drop the liquid surface until the liquid film to break, and then obtaining a value of the experiment table of [ mu ] 2 ] from the test liquid film after the test surface tension coefficient of the tester is measured by a value of [ alpha ] [ 1 ] + ] (i.; meanwhile, the rotating sleeve 302 drives the code disc 601 to rotate when rotating, a light passing hole on the code disc 601 can trigger the opening and closing of the photoelectric gate 602, a singlechip control system is used for detecting the change condition of the photoelectric gate 602, 50 pulse signals are generated when the code disc 601 rotates for every circle, and the up-and-down displacement detection of 0.01mm can be realized by using a high-low level technology, so that the change relation between the height of a liquid film and the magnitude of tension is obtained;
when the surface tension coefficients of the liquid under different temperature conditions need to be tested, the tester controls a heating power supply to electrify a heating plate 404 on a water tank vessel 401 through a set temperature value to heat the liquid in the water tank vessel 401, a temperature sensor 405 senses the temperature of the liquid and transmits the liquid back to the tester for feedback control, and the measurement of the surface tension coefficient of the liquid under the current temperature can be carried out until the temperature of the liquid is unchanged; the above procedure was then repeated to test the surface tension coefficients of the liquids at different temperatures.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (8)
1. A temperature-changing liquid surface tension coefficient tester comprises a base (1) and a supporting rod (2) arranged on the base (1); the lifting platform is characterized in that a lifting platform (3) is arranged on the base (1); a heating water tank (4) is arranged on the lifting table (3); the pressure testing assembly (5) is arranged on the supporting rod (2); the lifting table (3) is provided with a photoelectric door assembly (6); the heating water tank (4) comprises a water tank vessel (401), a heat preservation cover (402) arranged outside the water tank vessel (401) and a heating assembly (403) arranged on the water tank vessel (401).
2. The temperature swing liquid surface tension coefficient meter of claim 1, wherein: the heating water tank (4) is arranged on the lifting table (3) through the heat preservation cover (402); the heating assembly (403) comprises a plurality of heating plates (404) mounted on a sink vessel (401), a temperature sensor (405) and a temperature switch (406).
3. The temperature swing liquid surface tension coefficient measuring apparatus according to claim 2, wherein: a switch pressing plate (407) is also arranged on the water tank vessel (401); the temperature switch (406) is fixed on the flume vessel (401) through a switch pressing plate (407).
4. The temperature swing liquid surface tension coefficient meter of claim 1, wherein: the lifting platform (3) comprises a guide sleeve (301) arranged on the base (1), a rotating sleeve (302) arranged outside the guide sleeve (301), a telescopic rod (303) movably arranged in the rotating sleeve (302) and a tray (304) arranged on the telescopic rod (303); the photoelectric door assembly (6) is arranged on the rotating sleeve (302) and the base (1).
5. The temperature swing liquid surface tension coefficient measuring apparatus according to claim 4, wherein: a guide pin (305) is arranged on the telescopic rod (303); the guide sleeve (301) is provided with a guide groove (306).
6. The temperature swing liquid surface tension coefficient measuring apparatus according to claim 4, wherein: the photoelectric door assembly (6) comprises a code disc (601) arranged on the rotating sleeve (302) and a photoelectric door (602) which is matched with the code disc (601) and is fixed on the base (1).
7. The temperature swing liquid surface tension coefficient measuring apparatus according to claim 6, wherein: a plurality of horizontal adjusting screws (101) are further arranged on the base (1).
8. The temperature swing liquid surface tension coefficient meter of claim 1, wherein: the pressure testing assembly (5) comprises a fixing seat (501) arranged on the supporting rod (2), a pressure sensor (502) arranged on the fixing seat (501) and a hanging ring (503) connected with the pressure sensor (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320634193.0U CN219496064U (en) | 2023-03-28 | 2023-03-28 | Variable-temperature liquid surface tension coefficient tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320634193.0U CN219496064U (en) | 2023-03-28 | 2023-03-28 | Variable-temperature liquid surface tension coefficient tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219496064U true CN219496064U (en) | 2023-08-08 |
Family
ID=87510768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320634193.0U Active CN219496064U (en) | 2023-03-28 | 2023-03-28 | Variable-temperature liquid surface tension coefficient tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219496064U (en) |
-
2023
- 2023-03-28 CN CN202320634193.0U patent/CN219496064U/en active Active
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| GR01 | Patent grant | ||
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