Sample injector for measuring properties of wax oil with high solidifying point

Abstract

The invention relates to a sample injector for measuring the properties of wax oil with a high solidifying point. The sample injector consists of a near-infrared instrument sample cell clamping member, an oil-resistant rubber sealing pad, a quartz sheet, a polytetrafluoroethylene sealing pad, a sample cell, a positioning bolt, and a quartz scraping / pressing sheet; the oil-resistant rubber sealing pad is arranged on the surface of the near-infrared instrument sample cell clamping member, the quartz sheet is arranged on the oil-resistant rubber sealing pad, the polytetrafluoroethylene sealing pad is arranged on the quartz sheet, then the near-infrared instrument sample cell clamping member, oil-resistant rubber sealing pad, quartz sheet, and polytetrafluoroethylene sealing pad are connected and fixed by the positioning bolt, and a sample cell is formed in the space formed by the quartz sheet, polytetrafluoroethylene sealing pad, and positioning bolt. The wax oil which cannot be sampled at a room temperature is melted by heating or liquefied and then is injected into the sample cell of the sample injector. When the sample cools to the room temperature and solidifies, the whole sample injector is placed into a near-infrared instrument, the sample can be directly measured so as to obtain a near-infrared spectrum of the wax oil sample, thus basic data of an established wax oil near-infrared model can be measured, and the property evaluation of wax oil is obtained.

Description

technical field [0001] The invention relates to a special sample injector for near-infrared instrument for measuring the properties of high pouring wax oil and its use method Background technique [0002] According to the relevant authoritative patent information query system and document query system, the relevant technical situation of the present invention is found as follows: [0003] Patent 1 (Application Publication No. 201120393038.1) Asphaltene Determination Device in Wax Oil Fraction, Sinopec Fushun Petrochemical Research Institute. [0004] The invention provides a device for measuring asphaltene in wax oil fractions, which includes a solvent storage tank, a flask, a suction filter bottle, a vacuum pump and a control system; The solvent outlet, the solvent outlet is connected with the inlet of the flask with a pipeline, the bottom of the flask is provided with an opening, the opening is connected with the inlet of the filtration flask with a pipe fitting, the inle...

AI Technical Summary

Problems solved by technology

[0011] This method of measuring the properties of wax oil is complex, has many steps, uses toxic and harmful chemical reagents, is harmful to human health, has high requirements for operators, poor accuracy, low reproducibility, high difficulty in operation, high risk, and labor costs. The limitations of cost and high cost of equipment and instruments, the test period is 82 hours and the test time is long.

[0012] In the past, the measuring devices for measuring wax oil asphaltenes have disadvantages such as complex structure, high cost, many installation steps, many toxic and harmful chemical reagents, great harm to human health, and high requirements for operators.

[0013] In the past, the method of measuring the properties of wax oil was complex, with many steps, using toxic and harmful chemical reagents, which was harmful to human health, high requirements for operators, poor accuracy, low reproducibility, high operation difficulty, high risk, and high personnel cost. Disadvantages such as high cost of equipment and equipment, test period of 82 hours, and long test time

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