Self-drying, fog-free viewing window for an asphalt wax content test bath

Abstract

The utility model discloses a self -drying mist -free type observation window of asphalt wax content test bath, including closed hollow cavity, the closed hollow cavity front baffle and back baffle are made of transparent glass, the left drying chamber and right drying chamber are formed by the mesh plate separation of the both sides of closed hollow cavity, the drying box is placed in the left drying chamber and right drying chamber, and the left drying chamber and right drying chamber are equipped with the sealing cover in the front. The utility model has the advantages of simple structure, convenient processing and manufacturing, low cost, high cost performance, and the advantages of changing the instrument operation from complicated to simple and improving the instrument technology grade.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt testing equipment, specifically to a self-drying, fog-free observation window for an asphalt wax content test bath. Background Technology

[0002] Asphalt wax content refers to the proportion of wax in asphalt to the total mass of asphalt, and is an important indicator for evaluating asphalt quality.

[0003] According to the "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering," the wax content of asphalt used in high-grade highways should be controlled between 8% and 12%. When the wax content exceeds 12%, the plasticity and malleability of the asphalt decrease, making it prone to cracks and fissures, thus affecting the durability and safety of the highway. Conversely, when the wax content is below 8%, the viscosity and adhesion of the asphalt weaken, making the pavement prone to sanding and peeling, which also affects the service life and safety of the highway.

[0004] The asphalt wax content tester is designed and manufactured in accordance with the requirements of "T0615 Asphalt Wax Content Test (Distillation Method)" in the "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering". It is a specialized instrument for determining the wax content in petroleum asphalt.

[0005] The test procedure "T 0615 Asphalt Wax Content Test (Distillation Method)" stipulates that the asphalt wax content test is conducted by placing the asphalt sample in a special test tube and then placing it in a test bath at a minimum temperature of -20℃. During the test, the condition of the sample in the test tube must be observed in real time. Therefore, the test bath is generally a square-mouthed or round-mouthed cylindrical glass bathtub, with an observation window on the front for observing the test, and the rest of the bathtub is covered with insulation material.

[0006] If no measures are taken, when the temperature of the test bath drops to -20°C at room temperature, fog will form on the surface of the test bath at the observation window, affecting real-time observation of the test situation.

[0007] Currently, the method adopted is to wipe the fog off the surface of the test bathtub at the observation window with a clean, soft cloth before each observation of the test results.

[0008] Existing defects and shortcomings:

[0009] 1. Due to the lack of measures taken at the observation window of the test bath, fog will form on the surface of the observation window when the bath temperature drops to the required -20℃, which will affect the operator's real-time observation of the test situation.

[0010] 2. Because fog will form at the observation window of the test bath at a temperature of -20℃, the surface of the test bath at the observation window needs to be wiped clean with a clean soft cloth before each observation of the test, which is inconvenient for the use of the instrument.

[0011] 3. Due to the above-mentioned defects, the instrument as a whole is of low technical level.

[0012] Therefore, developing a self-drying, fog-free observation window for an asphalt wax content test bath has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0013] To address the shortcomings of existing technologies, this utility model aims to provide a self-drying, fog-free observation window for an asphalt wax content test bath, enabling the observation window to dry and become fog-free in low-temperature environments, simplifying operation and improving instrument performance.

[0014] The above-mentioned objective of this utility model is achieved through the following technical solution: a self-drying, fog-free observation window for an asphalt wax content test bath, comprising a closed hollow cavity, wherein the front and rear baffles of the closed hollow cavity are made of transparent glass, and the two sides of the closed hollow cavity are separated by a mesh plate to form a left drying chamber and a right drying chamber, wherein a drying box is placed in both the left and right drying chambers, and a sealing cover is provided on the front of both the left and right drying chambers.

[0015] Furthermore, the sealing covers on the front of both the left and right drying chambers are secured with four screws to seal the left and right drying chambers. Of course, other sealing and securing methods can also be used.

[0016] Furthermore, the drying box is a rectangular box with an open lid made of fine metal mesh, used to hold the desiccant and allow for easy replacement of the desiccant. The drying box is used to absorb moisture from the observation window, keeping the inside of the window dry at all times, and ultimately achieving a fog-free environment inside and outside the observation window when the test bath is cooled from room temperature to -20°C. When the desiccant in the drying box absorbs moisture and changes color, it must be removed and replaced.

[0017] Furthermore, the perforated plate is an epoxy resin perforated plate.

[0018] Furthermore, both the upper cover plate and the lower bottom plate of the enclosed hollow cavity are made of epoxy resin board.

[0019] The advantages of this utility model compared with the prior art are:

[0020] 1. It has the advantages of simple structure and convenient processing and manufacturing:

[0021] This utility model uses common materials and conventional processing methods to manufacture the required components, which are then assembled by adhesive sealing at specified positions on the outer surface of the test bathtub. It has the advantages of simple structure and convenient processing and manufacturing.

[0022] 2. It has the advantages of low cost and high cost performance:

[0023] Although the materials used in this invention are common and the manufacturing process is convenient, it achieves the effect of self-drying and fog-free observation window, and has good practical effect, with the advantages of low cost and high cost performance.

[0024] 3. It has the advantage of simplifying instrument operation:

[0025] This invention keeps the observation window dry and fog-free throughout the experiment, allowing direct observation of the test specimens in the test tubes of the test bath at any time. It eliminates the need for operators to wipe the observation window clean with a soft cloth before each observation, thus simplifying the operation of the instrument.

[0026] 4. It has the advantage of enhancing the technical level of instruments:

[0027] When this invention is applied to an asphalt wax content tester, the observation window remains dry and fog-free, completely eliminating the need for operators to manually wipe the observation window, thus enhancing the instrument's technical level. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the utility model applied to the asphalt wax content tester. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] like Figure 1As shown, a self-drying, fog-free observation window for an asphalt wax content test bath includes a closed hollow cavity 100. The front baffle 101 and rear baffle 102 of the closed hollow cavity 100 are made of transparent glass, and the upper cover plate 103 and lower bottom plate 104 of the closed hollow cavity 100 are both made of epoxy resin board. The two sides of the closed hollow cavity 100 are separated by an epoxy resin mesh plate 105 to form a left drying chamber 200 and a right drying chamber 300. The thickness of the epoxy resin mesh plate 105 is twice the thickness of the upper cover plate 103 and the lower bottom plate 104. A drying box 400 is placed in both the left drying chamber 200 and the right drying chamber 300. The drying box 400 is a rectangular box with an open lid made of fine metal mesh plate, used to hold desiccant and to facilitate desiccant replacement. The drying box 400 is used to absorb moisture from the observation window, keeping the observation window dry at all times, and ultimately achieving a fog-free environment inside and outside the observation window when the test bath is cooled from room temperature to -20°C. When the desiccant in the drying box 400 absorbs moisture and changes color, it must be removed and replaced. The left drying chamber 200 and right drying chamber 300 are respectively equipped with a left sealing cover 201 and a right sealing cover 301 on their front sides. The left sealing cover 201 and right sealing cover 301 are respectively fixed to the front sides of the left drying chamber 200 and right drying chamber 300 with four screws to seal the left drying chamber 200 and right drying chamber 300.

[0032] A schematic diagram of the implementation method of this utility model applied to an asphalt wax content tester is shown below. Figure 2 As shown. In Figure 2 middle:

[0033] The workbench 501 is the workbench of the asphalt wax content tester. The workbench is equipped with 3 test holes and a bath stirring motor 505.

[0034] Thermal insulation material 502 is wrapped around the perimeter and bottom of the test bath glass tank, except for the observation window, to protect the test bath temperature.

[0035] Test bath 503 is a glass test bath made according to the test requirements of "T 0615 Asphalt Wax Content Test (Distillation Method)".

[0036] There are three test hole covers (504). When not in use, these covers are placed over the openings of the test holes on the three work surfaces (501). During testing, the test hole cover is removed, and the asphalt wax content test tube containing the sample is placed inside the test hole.

[0037] A stirring motor 505 is installed on the workbench 501. The stirring shaft, which is equipped with stirring blades and is installed on the rotating shaft of the stirring motor, stirs the bath liquid in the test bath 503 to make the bath liquid temperature uniform.

[0038] The observation window 506, which is the self-drying and fog-free observation window of this utility model, is used to observe the test conditions of the sample in the test tube inside the test bath.

[0039] Control panel 507, control panel for the asphalt wax content tester.

[0040] The refrigeration compressor unit compartment 508 contains a built-in refrigeration compressor unit and control and execution circuits to prepare low-temperature test bath liquid for the test bath 503.

[0041] Foot 509, 4 in total, load-bearing feet for the asphalt wax content tester.

[0042] This invention keeps the observation window dry and fog-free throughout the test, allowing direct observation of the test specimens in the test tubes of the test bath at any time. This eliminates the need for the operator to wipe the observation window clean with a soft cloth before each observation.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-drying, fog-free observation window for an asphalt wax content test bath, characterized in that: The device includes a closed hollow cavity, the front and rear baffles of which are made of transparent glass. The two sides of the closed hollow cavity are separated by a mesh plate to form a left drying chamber and a right drying chamber. A drying box is placed in both the left and right drying chambers, and a sealing cover is provided on the front of both the left and right drying chambers.

2. The self-drying, fog-free observation window for an asphalt wax content test bath according to claim 1, characterized in that: The sealing covers on the front of both the left and right drying chambers are secured with four screws.

3. The self-drying, fog-free observation window for an asphalt wax content test bath according to claim 1, characterized in that: The drying box is a rectangular box with an open lid made of fine metal mesh.

4. The self-drying, fog-free observation window for an asphalt wax content test bath according to claim 1, characterized in that: The perforated plate is an epoxy resin perforated plate.

5. The self-drying, fog-free observation window for an asphalt wax content test bath according to claim 1, characterized in that: The upper cover and lower bottom plate of the enclosed hollow cavity are both made of epoxy resin board.

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