Portable asphalt sampling device based on constant temperature control
The portable asphalt sampling device with constant temperature control uses localized and precise controlled heating, which solves the problems of high energy consumption and thermo-oxidative aging in existing technologies, and achieves rapid and accurate asphalt sampling to meet laboratory testing needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI GANYUE EXPRESSWAY
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing asphalt sampling methods require overall heating and melting, resulting in high energy consumption and long processing time, which affects the accuracy of sample performance testing. Furthermore, repeated heating leads to thermo-oxidative aging, resulting in inaccurate test results.
A portable asphalt sampling device based on constant temperature control is adopted. It uses heating wire and constant temperature control module to achieve localized and precise controlled heating. The sampling head is made of copper alloy and equipped with double-layer heat insulation rubber sleeve and mica sheet. The temperature control range is 100℃ to 200℃ with an adjustment accuracy of ±2℃, reducing the heating of the whole barrel of asphalt.
It enables rapid local sampling, reduces energy consumption, minimizes asphalt thermal-oxidative aging, ensures the accuracy of test data, and meets the needs of rapid laboratory testing.
Smart Images
Figure CN224216351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampling device technology, and in particular to a portable asphalt sampling device based on constant temperature control. Background Technology
[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives. It is a high-viscosity organic liquid, mostly existing in liquid or semi-solid petroleum form, with a black surface, and is soluble in carbon disulfide and carbon tetrachloride. Asphalt is a waterproof, moisture-proof, and corrosion-resistant organic cementing material. Asphalt can be mainly divided into three types: coal tar pitch, petroleum asphalt, and natural asphalt. Coal tar pitch is a byproduct of coking. Petroleum asphalt is the residue after crude oil distillation. Natural asphalt is stored underground, sometimes forming mineral layers or accumulating on the earth's surface. Asphalt is mainly used in the coatings, plastics, and rubber industries, as well as in road paving.
[0003] Asphalt usually needs to be sampled before use so that the laboratory can test various properties of the asphalt material to see if it meets the usage requirements.
[0004] Currently, conventional asphalt sampling methods primarily involve heating the entire sample to melt it, which can affect the accuracy of subsequent performance tests. Furthermore, this heating method not only consumes a significant amount of energy but also takes up to two hours, prolonging the experimental process. During repeated heating, asphalt undergoes thermo-oxidative aging, leading to a decline in its performance and inaccurate test results. Utility Model Content
[0005] The purpose of this invention is to provide a portable asphalt sampling device based on constant temperature control, which solves the problem that the existing asphalt sampling method mainly achieves the asphalt sampling by heating and melting the entire sample, which affects the accuracy of subsequent multiple performance tests of the asphalt sample. Moreover, the heating method not only consumes a lot of energy and takes a long time, prolonging the experimental process, but also causes thermal oxidative aging of the asphalt during repeated heating, resulting in a decline in its performance and inaccurate test results.
[0006] To achieve the above objectives, this utility model provides a portable asphalt sampling device based on constant temperature control. The sampling device is clamp-shaped and includes a sampling head, two heating wires, two iron pipes, and two handles. One end of one handle is connected to one iron pipe, and the other end is equipped with a constant temperature control module. One end of the other handle is connected to another iron pipe, and the other end is equipped with a removable rechargeable battery. The two handles are hinged together. The sampling head includes a first sampling head and a second sampling head, which are respectively connected to the ends of the two iron pipes.
[0007] Preferably, the two heating wires are located inside the two iron pipes respectively.
[0008] Preferably, the outer side of the iron pipe is covered with mica sheets.
[0009] Preferably, the handle is covered with a double-layer heat-insulating sleeve, which includes an outer layer of silicone rubber and an inner layer of aerogel felt.
[0010] Preferably, the constant temperature control module can display and adjust the heating temperature in real time, monitor and automatically adjust the power supply status of the heating wire through a sensor, and its temperature control range is set between 100℃ and 200℃ with an adjustment accuracy of ±2℃.
[0011] Preferably, both the first sampling head and the second sampling head are hemispherical, and the first sampling head and the second sampling head are combined to form a sphere.
[0012] Preferably, the constant temperature control module, the removable rechargeable battery, and the heating wire are electrically connected.
[0013] Therefore, this utility model adopts the above-mentioned portable asphalt sampling device based on constant temperature control, which can realize local precise controlled heating sampling without heating the whole barrel of asphalt. This not only greatly reduces energy consumption, but also reduces the thermal and oxygen aging of asphalt, ensuring the accuracy of test data. The device has a simple structure and is easy to operate, meeting the rapid sampling needs of routine laboratory testing, and has good practical value and promotion prospects.
[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a portable asphalt sampling device based on constant temperature control according to this utility model.
[0016] Figure 2 This is a schematic diagram of the internal structure of the iron pipe in a portable asphalt sampling device based on constant temperature control according to this utility model.
[0017] Figure Labels
[0018] 1. First sampling head; 2. Iron pipe; 3. Handle; 4. Constant temperature control module; 5. Removable rechargeable battery; 6. Second sampling head; 7. Heat insulation sleeve; 8. Heating wire; 9. Mica sheet. Detailed Implementation
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0020] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0021] Example
[0022] like Figure 1 As shown, a portable asphalt sampling device based on constant temperature control is disclosed. The sampling device is clamp-shaped, 300mm in length, and is symmetrically composed of two sides. It includes a sampling head, two heating wires 8, two iron pipes 2, and two handles 3. One end of one handle 3 is connected to one iron pipe 2, and the other end is equipped with a constant temperature control module 4. One end of the other handle 3 is connected to another iron pipe 2, and the other end is equipped with a removable rechargeable battery 5. The two handles 3 are hinged, and the hinge adopts existing technology.
[0023] like Figure 2 As shown, two heating wires 8 are located inside the two iron pipes 2. The outer side of the iron pipes 2 is covered with mica sheets 9, which have good insulation and high temperature resistance.
[0024] The sampling head includes a first sampling head 1 and a second sampling head 6, which are respectively connected to the ends of two iron pipes 2. Both the first sampling head 1 and the second sampling head 6 are hemispherical, and when combined, they form a sphere. The sampling head has a diameter of 50mm and is made of copper alloy, which has a high thermal conductivity. It absorbs the heat from the heating wire and rapidly heats up to the required temperature in a short time, enabling localized extraction of solid asphalt.
[0025] The handle 3 is covered with a double-layer heat-insulating sleeve 7, which includes an outer layer of silicone rubber and an inner layer of aerogel felt, improving safety and comfort during operation and effectively avoiding the risk of high-temperature burns. The sleeve is 120mm long.
[0026] The constant temperature control module 4 can display and adjust the heating temperature in real time. It monitors and automatically adjusts the energizing status of the heating wire 8 via sensors. Its temperature control range is set between 100℃ and 200℃, with an adjustment accuracy of ±2℃, meeting the control requirements for the melting state of asphalt under different environments. The constant temperature control module 4 and the heating wire 8 are powered by a built-in removable lithium-ion battery (12V / 3000mAh), which can operate continuously for 1.5-2 hours and has fast charging capabilities. The constant temperature control module 4 and the removable rechargeable battery 5 utilize existing technology.
[0027] The temperature control module 4, the removable rechargeable battery 5, and the heating wire 8 are electrically connected, and a switch is provided to control the start and stop of each workpiece. The electrical connection method and control method between the temperature control module 4, the removable rechargeable battery 5, and the heating wire 8 adopt existing technology.
[0028] A removable rechargeable battery 5 powers the temperature control module 4, which in turn controls the heating wire 8 to heat the sample head. This heating melts the solid asphalt in the container, facilitating its removal. The sample is then taken to the laboratory for testing. Compared to existing technologies (such as single-head hemispherical designs), this method significantly improves sampling efficiency, allowing for larger sample volumes in a shorter time. It eliminates the need to heat the entire container of asphalt, drastically reducing energy consumption and minimizing the thermal-oxidative aging of the asphalt, thus ensuring the accuracy of test data. The device is simple in structure and easy to operate, meeting the rapid sampling needs of routine laboratory testing and possessing significant practical value and promising prospects for wider application.
[0029] Therefore, the present invention adopts the above-mentioned portable asphalt sampling device based on constant temperature control, which can realize local precise controlled heating sampling without heating the whole barrel of asphalt. This not only greatly reduces energy consumption, but also reduces the thermal and oxygen aging of asphalt, ensuring the accuracy of test data. The device has a simple structure and is easy to operate, meeting the rapid sampling needs of routine laboratory testing, and has good practical value and promotion prospects.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A portable asphalt sampling device based on constant temperature control, characterized in that: The sampling device is clamp-shaped and includes a sampling head, two heating wires, two iron pipes, and two handles. One handle is connected to one iron pipe at one end and has a constant temperature control module at the other end. The other handle is connected to another iron pipe at one end and has a removable rechargeable battery at the other end. The two handles are hinged together. The sampling head includes a first sampling head and a second sampling head, which are respectively connected to the ends of the two iron pipes.
2. The portable asphalt sampling device based on constant temperature control according to claim 1, characterized in that: The two heating wires are located inside the two iron pipes respectively.
3. The portable asphalt sampling device based on constant temperature control according to claim 1, characterized in that: The iron pipe is covered with mica sheets on the outside.
4. The portable asphalt sampling device based on constant temperature control according to claim 1, characterized in that: The handle is covered with a double-layer heat-insulating sleeve, which includes an outer layer of silicone rubber and an inner layer of aerogel felt.
5. A portable asphalt sampling device based on constant temperature control according to claim 1, characterized in that: The constant temperature control module can display and adjust the heating temperature in real time. It monitors and automatically adjusts the power supply status of the heating wire through sensors. Its temperature control range is set between 100℃ and 200℃, with an adjustment accuracy of ±2℃.
6. A portable asphalt sampling device based on constant temperature control according to claim 1, characterized in that: Both the first sampling head and the second sampling head are hemispherical, and when combined, they form a sphere.
7. A portable asphalt sampling device based on constant temperature control according to claim 1, characterized in that: The constant temperature control module, the removable rechargeable battery, and the heating wire are electrically connected.