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A kind of asphalt automatic sampling device

An automatic sampling device and asphalt technology, applied in sampling devices, sampling, measuring devices, etc., can solve problems such as inability to take samples, changes in sample retention performance, and inability to guarantee representativeness.

Active Publication Date: 2020-06-16
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional asphalt sampling methods are more limited, when the asphalt tank is at room temperature, it is impossible to sample
For the samples in the storage tank, the whole tank needs to be heated, the sampling time is long, and the representativeness of the sampling cannot be guaranteed
In addition, when the reserved sample is measured for many times, the performance of the reserved sample will change if the asphalt sample is repeatedly heated and cooled, which will affect the accuracy of the reserved sample detection.

Method used

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  • A kind of asphalt automatic sampling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] see figure 1 , an asphalt automatic sampling device provided in the embodiment of the present invention, such as figure 1 As shown, the device includes a heating sleeve 1, an asphalt sampling pipe 2, a temperature sensor 3, a temperature control assembly 4, a negative pressure sampling bottle 5, and a vacuum pump 6; the heating sleeve 1 is set outside the asphalt sampling pipe 2, The temperature sensor 3 is connected to the heating sleeve 1, the negative pressure sampling bottle 5 is connected to the asphalt sampling pipe 2, the vacuum pump 6 is connected to the negative pressure sampling bottle 5, and the temperature control assembly 4 Connected with the heating jacket 1 and the vacuum pump 6;

[0021] Wherein, the temperature control assembly 4 is used to control the heating temperature of the heating sleeve 1, and the heating sleeve 1 is used to heat the asphalt sampling pipe 2, so that the asphalt sampling pipe is inserted into the solid asphalt sample. Afterwards...

Embodiment approach

[0024] The usage method of the device provided by the present application is described in detail below by means of usage: when the device is in use, a 30g sample is taken from a 1 liter volume of bitumen reserved sample, and placed in a sampling bottle for use in bitumen testing. combine figure 1 The description of each component in the structural schematic diagram describes the specific implementation, as follows:

[0025] Step 1: From figure 1 The 4 temperature control devices of the asphalt automatic sampling device set the temperature of the 1 asphalt sampling pipe to 120°C, and start the heating function. The temperature of the asphalt sampling pipe rises, and the temperature control device reads the current temperature of the asphalt sampling pipe through the 3 temperature sensors. When the temperature reaches the set Temperature value, you can start sampling;

[0026] Step 2: Place the bitumen sampling tube at the bitumen sampling site, and observe the depth of the sa...

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Abstract

The invention discloses an automatic asphalt sampling device. In one implementation model, the device comprises a heating sleeve, an asphalt sampling tube, a temperature sensor, a temperature controlcomponent, a negative pressure sampling bottle and a vacuum pump. The heating sleeve is sheathed at the exterior of the asphalt sampling tube. The temperature sensor is connected with the heating sleeve. The negative pressure sampling bottle is connected with the asphalt sampling tube. The vacuum pump is connected with the negative pressure sampling bottle. The temperature control component is connected with the heating sleeve and the vacuum pump. According to the provided automatic asphalt sampling device, the sample tube has a function of setting heating temperature, so the problem that thewhole bottle of an asphalt sample needs to be heated while the asphalt is sampled is solved. A positioning sampling and rapid sampling mode is provided for sampling the asphalt. The labor intensity isreduced, and the efficiency of the asphalt sampling is improved. The sampling process is automatically completed, the operation is simple and convenient, and the sampling efficiency is high. The device is capable of realizing the quantitative sampling. In addition, the sampling tube can be placed in the different sample depths, so the representativeness of the sample is improved.

Description

technical field [0001] The invention relates to the technical field of asphalt sampling equipment, in particular to an asphalt automatic sampling device which can automatically complete the sampling process, is easy to operate and has high sampling efficiency. Background technique [0002] Asphalt is a dark brown mixture composed of hydrocarbons of different molecular weights and non-metallic derivatives. It has a high viscosity at room temperature and is solid or semi-solid. It becomes fluid when heated above 80°C. In the production and construction of asphalt, in order to ensure the quality and construction quality of asphalt, asphalt needs to be sampled for inspection and retained for future reference. The usual sampling methods are: 1. The method of sampling from the asphalt tank: the asphalt in the tank has fluidity in a heated state, and the sampling valve is opened for sampling; Samples were taken after the internal bitumen had melted. The traditional asphalt sampli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1418
Inventor 时敬涛李剑新赵磊袁野李玉环蒋福山刘瑾潼
Owner PETROCHINA CO LTD
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