Experimental platform for measuring freezing point
By designing an experimental platform that includes a tabletop, base, cold light source, experimental box, CCD camera and infrared thermal imager, the limitations of existing freezing point measurement equipment, which is expensive and limited to single conditions, are overcome. This enables the recording of phase transition processes under different humidity and temperature conditions, thereby reducing experimental costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-20
AI Technical Summary
Existing freezing point measurement equipment is expensive and can only be used for experiments under single conditions, making it impossible to measure phase transition processes under different humidity and temperature conditions.
An experimental platform was designed, comprising a tabletop, a base, a cold light source, an experimental box, a CCD camera, and an infrared thermal imager. The experimental conditions are controlled by adjusting humidity and temperature, using nitrogen and water cooling devices, and the phase transition process is recorded by combining the CCD camera and the infrared thermal imager.
It enables clear and high-speed recording of the freezing phase transition process under different humidity and temperature conditions, overcomes the limitations of existing equipment, and reduces experimental costs.
Smart Images
Figure CN224019697U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to experimental apparatus technical field, concretely is an experimental platform for freezing point measurement. BACKGROUND
[0002] The freezing point (i.e. freezing temperature, also known as freezing point) of current water can be measured by manual method, differential scanning calorimetry, near-infrared spectroscopy, thermal imaging method and automatic phase transition method, these testing instruments are not only expensive, and only control single condition, cannot carry out experiment under the condition of different humidity and temperature simultaneously. SUMMARY
[0003] In view of the deficiency of prior art, the utility model provides an experimental platform for freezing point measurement, solves the problem of different specifications pipe pile conveying and pile body knock damage scratch.
[0004] To achieve the above object, the utility model provides the following technical scheme: an experimental platform for freezing point measurement, including mesa, be equipped with base on the mesa, the both ends of base are equipped with cold light source and experiment box respectively, the one end of base is equipped with first track and second track near the experiment box, be equipped with CCD camera on the first track, be equipped with infrared thermal imager on the second track.
[0005] Further, the side of the experiment box is provided with an air outlet, and the bottom is provided with a water inlet and a water outlet.
[0006] Further, the side of the mesa is provided with a water cooling device and a nitrogen cylinder, the nitrogen cylinder supplies nitrogen to the experiment box, and the water cooling device is communicated with the water inlet and the water outlet.
[0007] Further, the mesa is provided with a dry oil bottle, and the dry oil bottle is communicated with the air outlet through a gas pipe.
[0008] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:
[0009] By adjusting the humidity and temperature in the experiment box, the phase transition physical experiment conditions are adjusted together, the freezing phase transition process under different humidity or other phase transition environment and temperature is realized, and the process is clearly and rapidly shot. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is the structural drawing of the utility model;
[0011] Fig. 2 It is the local enlarged view of the utility model;
[0012] Fig. 3 It is the side view of the experiment box of the utility model.
[0013] In the figure: table 1, base 2, cold light source 3, experimental box 4, first track 5, second track 6, CCD camera 7, infrared thermal imager 8, dry oil bottle 9, nitrogen cylinder 10, water cooling device 11, gas outlet 41, water inlet 111, water outlet 112. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0015] The technical solutions provided by the utility model are as shown in the figure Figs. 1-3 A kind of experimental platform for freezing point measurement, including table 1, table 1 is equipped with base 2 and dry oil bottle 9, base 2 two ends are equipped with cold light source 3 and experimental box 4 respectively, the end of base 2 close to experimental box 4 is equipped with first track 5 and second track 6, first track 5 is equipped with the sliding CCD camera 7, second track 6 is equipped with the sliding infrared thermal imager 8.
[0016] The side of experimental box 4 is equipped with gas outlet 41, dry oil bottle 9 is communicated with gas outlet 41 by gas pipe, and a certain amount of kerosene is loaded in dry oil bottle 9.
[0017] The side of table 1 is equipped with water cooling device 11 and nitrogen cylinder 10, nitrogen cylinder 10 supplies nitrogen to experimental box 4.
[0018] The bottom of experimental box 4 is equipped with water inlet 111 and water outlet 112, and water cooling device 11 is communicated with water inlet 111 and water outlet 112, to carry out water cooling and temperature reduction to experimental box 4.
[0019] It is worth noting that for certain specific phase change processes, the humidity-controlled nitrogen source can be replaced by other gas sources to meet different phase change requirements. For example, water vapor is introduced to meet different high humidity conditions, and alcohol vapor is introduced to study the phase change process of non-water substances.
[0020] In this embodiment, experimental box 4 adopts the structure disclosed in the application number 2024207819836, named a liquid drop icing experiment box with humidity and temperature double regulation.
[0021] CCD camera 7 and infrared thermal imager 8 are used to record the icing and cooling process of liquid drops simultaneously. CCD camera 7 is a German IDS high-speed camera with model UI-3360CP-M-GL, and infrared thermal imager 8 is a FOTRIC infrared thermal imager with model FOTRIC 246M.
[0022] In use, the liquid to be tested is placed on the semiconductor refrigeration sheet in the experimental box 4, the CCD camera 7 and the infrared thermal imager 8 are adjusted to focus on the sample in the experimental box 4 and to be in the middle position, the air flow speed and the ventilation time are controlled to make the gas phase environment in the experimental box 4 reach the required humidity or other phase change conditions, the experimental box 4 cools the droplet sample, and the freezing and cooling processes of the droplet are recorded by the CCD camera and the infrared thermal imager 8 at the same time.
[0023] The gas phase water in the experimental box 4 is taken away by continuously introducing nitrogen, the nitrogen is introduced from the top of the environmental box and is led out from the bottom to achieve a better dehumidification effect. In addition, the nitrogen gas outlet 41 at the bottom is led out through a gas pipe and is introduced into a dry oil bottle 9 containing a certain amount of kerosene, the end of the gas pipe is immersed in the oil to ensure that the nitrogen gas is directly introduced into the oil to prevent the water from flowing back and to achieve a drying effect.
[0024] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An experimental platform for measuring freezing point, comprising a platform (1), a base (2) provided on the platform (1), and a cold light source (3) and an experimental box (4) respectively provided at both ends of the base (2), characterized in that: The base (2) has a first track (5) and a second track (6) at one end near the experimental box (4). A CCD camera (7) is mounted on the first track (5), and an infrared thermal imager (8) is mounted on the second track (6).
2. The experimental platform for measuring freezing point according to claim 1, characterized in that: The experimental box (4) has an air outlet (41) on its side and a water inlet (111) and a water outlet (112) at its bottom.
3. The experimental platform for measuring freezing point according to claim 2, characterized in that: The side of the tabletop (1) is provided with a water cooling device (11) and a nitrogen cylinder (10). The nitrogen cylinder (10) supplies nitrogen to the experimental box (4). The water cooling device (11) is connected to the water inlet (111) and the water outlet (112).
4. The experimental platform for measuring freezing point according to claim 2, characterized in that: A drying oil bottle (9) is provided on the tabletop (1), and the drying oil bottle (9) is connected to the air outlet (41) through an air pipe.