A liquid level image acquisition device

Abstract

The utility model relates to a kind of liquid level image acquisition devices, belong to building material technical field, specifically include: main cavity, geopolymer holding dish and integrated seal cover, the geopolymer holding dish is placed in the inside of main cavity, integrated seal cover is capped in the top of main cavity;Wherein the integrated seal cover is double-tube structure.Integrated seal cover includes cover body, measuring tube and oil inlet pipe are provided on cover body, measuring tube and oil inlet pipe are arranged side by side, end through cover body and enter the main cavity between geopolymer holding dish, the lower end of measuring tube is lower than the lower end of oil inlet pipe.The utility model adopts the thought of double-tube, one tube is measuring tube, one tube is oil inlet pipe, two tubes do not use rubber plug, there is no internal stress factor to interfere with test results, to ensure that measurement result is more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of building materials technology, and in particular relates to a liquid level height image acquisition device. Background Technology

[0002] Geopolymers are a type of green cementitious material, whose main raw materials are industrial wastes containing SiO2, Al2O3, and CaO, such as slag, fly ash, boron mud, and silica fume. Geopolymers can serve as a substitute for cement because they do not require the "two grinding and one burning" process in the cement industry, making them highly environmentally friendly. Furthermore, geopolymers possess excellent workability, mechanical properties, and durability.

[0003] Chemical shrinkage of geopolymers refers to the phenomenon where the absolute volume of the reaction products decreases compared to the sum of their absolute volumes before the reaction. This is due to the difference in average density between the hydration products and the raw materials. Chemical shrinkage of geopolymers affects the early cracking performance of geopolymer concrete. Reducing chemical shrinkage can effectively slow down the formation of microcracks within the geopolymer hydration products, thereby improving the mechanical properties of the concrete products. Geopolymer shrinkage includes chemical shrinkage, autogenous shrinkage, drying shrinkage, and carbonation shrinkage. Among these, only chemical shrinkage is related to the chemical reactions during the geopolymer hydration process. Therefore, some scholars have used numerical calculations of the chemical shrinkage of geopolymers to determine their hydration kinetics equations. Currently, the measurement of chemical shrinkage of geopolymers is based on the method of cement materials, namely the American Society for Testing and Materials standard ASTM-C1608 "Standard Test Method for Chemical Shrinkage of Hydraulic Cement Paste". This method reflects the chemical shrinkage value by measuring the change in liquid volume in the measuring device. However, the current measuring device still has some defects in the implementation process: (1) The measuring device is sealed with a rubber stopper, but the rubber stopper will retain internal stress during the process of being inserted into the bottle mouth. The release of the internal stress of the rubber stopper will change the height of the liquid level, thus bringing a large error to the measurement result; (2) The reading of the liquid level is obtained manually. However, since the chemical shrinkage of geopolymers is small, especially in the later stage of hydration, the change of the liquid level is difficult to judge with the naked eye, resulting in errors. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a liquid level height image acquisition device that avoids interference with test results due to internal stress.

[0005] A liquid level image acquisition device includes a main cavity, a geopolymer container, and an integrated sealing cap. The geopolymer container is placed inside the main cavity, and the integrated sealing cap covers the top of the main cavity. The integrated sealing cap has a double-tube structure.

[0006] The main cavity is a cylindrical open container made of glass.

[0007] The upper end of the outer side of the main cavity is a first frosted surface, which is used for connection with the integrated sealing cover.

[0008] The geopolymer container is a cylindrical, open-topped container made of glass.

[0009] When in use, the inner surface of the geopolymer container is wrapped with plastic wrap.

[0010] The integrated sealing cap includes a cap body, on which a measuring tube and an oil inlet tube are provided. The measuring tube and the oil inlet tube are arranged side by side, with their ends passing through the cap body and extending into the space between the main cavity and the geopolymer container.

[0011] The lower end of the measuring tube is lower than the lower end of the oil inlet tube.

[0012] The cover and the measuring tube are fixed together with glass adhesive.

[0013] The cover and the oil inlet pipe are fixed together with glass adhesive.

[0014] The cover includes two coaxially arranged upper and lower parts, specifically an upper tube connecting part and a lower mating part. The inner surface of the mating part is a second frosted surface, which is used for mating and connecting with the main cavity.

[0015] By employing the above technical solution, this utility model application has at least the following beneficial effects:

[0016] The liquid level image acquisition device provided by this utility model can be used to acquire liquid level images when obtaining the chemical shrinkage of geopolymer cementitious materials. The device adopts a dual-tube design, with one tube being a measuring tube and the other being an oil inlet tube. Neither tube uses a rubber stopper, so there will be no internal stress factors interfering with the test results, thus ensuring more accurate measurement results. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the liquid level height image acquisition device provided in this embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the main cavity in the liquid level height image acquisition device provided in this embodiment of the utility model;

[0019] Figure 3 for Figure 2 The main view;

[0020] Figure 4 for Figure 2 Side view;

[0021] Figure 5for Figure 2 Top view;

[0022] Figure 6 A schematic diagram of the geopolymer container in the liquid level image acquisition device provided in this embodiment of the utility model;

[0023] Figure 7 for Figure 6 The main view;

[0024] Figure 8 for Figure 6 Side view;

[0025] Figure 9 for Figure 6 Top view;

[0026] Figure 10 A schematic diagram of the integrated sealing cover in the liquid level image acquisition device provided in this embodiment of the utility model;

[0027] Figure 11 for Figure 10 The main view;

[0028] Figure 12 for Figure 10 Side view;

[0029] Figure 13 for Figure 10 Top view;

[0030] in:

[0031] 1-Main cavity, 2-Geopolymer container, 3-Integrated sealing cap, 4-Cap, 5-Measuring tube, 6-Oil inlet pipe, 7-First frosted surface, 8-Second frosted surface. Detailed Implementation

[0032] To better explain and facilitate understanding of this utility model, the technical solution and effects of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1-13 As shown, this embodiment provides a liquid level image acquisition device, including a main cavity 1, a geopolymer container 2, and an integrated sealing cover 3. The geopolymer container 2 is placed inside the main cavity 1, and the integrated sealing cover 3 covers the top of the main cavity 1.

[0034] In this embodiment, the main cavity 1 is a cylindrical open container made of glass. The main cavity 1 has a wall thickness of 5mm, an outer diameter of 100mm, an inner diameter of 90mm, and a height of 60mm. The upper end of the outer side of the main cavity 1 is a first frosted surface 7, used for connection with the integrated sealing cap 3. The height of the first frosted surface 7 is 15mm. The geopolymer container 2 is a cylindrical open container made of glass. The geopolymer container 2 has a wall thickness of 5mm, an outer diameter of 50mm, an inner diameter of 40mm, and a height of 40mm.

[0035] The integrated sealing cap 3 has a double-tube structure, including a cap body 4. The cap body 4 is provided with a measuring tube 5 and an oil inlet tube 6. The measuring tube 5 and the oil inlet tube 6 are arranged side by side, with their ends passing through the cap body 4 and extending into the space between the main cavity 1 and the geopolymer container 2. The lower end of the measuring tube 5 is lower than the lower end of the oil inlet tube 6.

[0036] In this embodiment, the measuring tube 5 is a graduated 1mL pipette with an outer diameter of 7mm and an inner diameter of 3mm. The oil inlet tube 6 is a hollow glass tube with an outer diameter of 13mm and an inner diameter of 9mm.

[0037] The cover 4 comprises two coaxially arranged upper and lower parts, specifically the upper tube connecting part and the lower fitting part.

[0038] In this embodiment, the tube connection part is a glass disc with a height of 5mm, an outer diameter of 110mm, and a thickness of 5mm. The disc has two connecting holes for connecting the measuring tube 5 and the oil inlet tube 6, with diameters of 7mm and 13mm respectively. The mating part, which mates with the main cavity 1, is a hollow glass cylinder with a height of 15mm, an outer diameter of 110mm, and an inner diameter of 100mm. Its inner surface is a second frosted surface 8, used for mating and connecting with the main cavity 1.

[0039] The inner wall of the connecting hole on the cover 4 for connecting the measuring tube 5 is pre-coated with glass adhesive. The measuring tube 5 is inserted into the connecting hole on the cover 4 with a diameter of 7mm, with its lower end extending 30mm beyond the lower edge of the cover 4. The glass adhesive secures the measuring tube 5 to the cover 4. The inner wall of the connecting hole on the cover 4 for connecting the oil inlet tube 6 is also pre-coated with glass adhesive. The oil inlet tube 6 is inserted into the connecting hole on the cover 4 with a diameter of 13mm, with its lower end extending 10mm beyond the lower edge of the cover 4. The glass adhesive secures the oil inlet tube 6 to the cover 4.

[0040] Taking the liquid level image acquisition device provided in the above embodiment as an example, the usage process of the liquid level image acquisition device provided by this utility model is as follows:

[0041] S1: Pour 270mL of engine oil into the main chamber 1. The amount of engine oil poured in is 70% of the volume of the main chamber 1, in order to reduce the time required to add oil through the oil inlet pipe 6.

[0042] S2: Wrap the inner surface of the geopolymer container 2 with plastic wrap to isolate the geopolymer from the geopolymer container 2, so as to achieve the purpose of reuse.

[0043] S3: Pour the raw materials for the geopolymer into the cement paste mixer one after another, stir slowly for 2 minutes, pause for 15 seconds, then stir quickly for 2 minutes to ensure that the paste is evenly mixed, and then vibrate for 30 seconds to remove air bubbles from the paste.

[0044] Weigh 10g as the slurry of the geopolymer to be tested;

[0045] The precisely weighed geopolymer slurry to be tested is poured into geopolymer container 2.

[0046] S4: Place the geopolymer container 2 containing the geopolymer slurry to be tested into the main cavity 1, and cover the main cavity 1 with the integrated sealing cap 3, and make the first frosted surface 7 and the second frosted surface 8 fully engage.

[0047] S5: Add engine oil to the oil inlet pipe 6 so that the oil level is higher than the uppermost scale line of the measuring pipe 5, and seal the upper end of the oil inlet pipe 6 with glass glue.

[0048] S6: Use a digital camera to continuously take pictures of the liquid level image acquisition device to obtain the liquid level in the measuring tube 5.

Claims

1. A device for acquiring liquid level height images, characterized in that: It includes a main cavity, a geopolymer container, and an integrated sealing cap. The geopolymer container is placed inside the main cavity, and the integrated sealing cap covers the top of the main cavity. The integrated sealing cap has a double-tube structure.

2. The liquid level height image acquisition device according to claim 1, characterized in that: The main cavity is a cylindrical open container made of glass.

3. The liquid level height image acquisition device according to claim 2, characterized in that: The upper end of the outer side of the main cavity is a first frosted surface, which is used for connection with the integrated sealing cover.

4. The liquid level height image acquisition device according to claim 1, characterized in that: The geopolymer container is a cylindrical, open-topped container made of glass.

5. The liquid level height image acquisition device according to claim 4, characterized in that: When in use, the inner surface of the geopolymer container is wrapped with plastic wrap.

6. The liquid level height image acquisition device according to claim 1, characterized in that: The integrated sealing cap includes a cap body, on which a measuring tube and an oil inlet tube are provided. The measuring tube and the oil inlet tube are arranged side by side, with their ends passing through the cap body and extending into the space between the main cavity and the geopolymer container.

7. The liquid level height image acquisition device according to claim 6, characterized in that: The lower end of the measuring tube is lower than the lower end of the oil inlet tube.

8. The liquid level height image acquisition device according to claim 6, characterized in that: The cover and the measuring tube are fixed together with glass adhesive.

9. The liquid level height image acquisition device according to claim 6, characterized in that: The cover and the oil inlet pipe are fixed together with glass adhesive.

10. The liquid level height image acquisition device according to claim 6, characterized in that: The cover includes two coaxially arranged upper and lower parts, specifically an upper tube connecting part and a lower mating part. The inner surface of the mating part is a second frosted surface, which is used for mating and connecting with the main cavity.

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