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Manual type device for sampling quantitative gas

A gas quantification and sampling device technology, applied in the preparation of test samples, analytical materials, instruments, etc., can solve the problems of inaccurate quantification, systematic errors, affecting detection accuracy, etc., to achieve simple operation, accurate quantification, and improved detection. The effect of precision

Inactive Publication Date: 2007-07-25
JIANGSU JIANGFEN ELECTROANALYTICAL INSTR
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Due to the repeated extraction of the piston, there is a certain gap in the cavity, which causes systematic errors and cannot be accurately quantified. Moreover, the tested samples are not subjected to constant temperature treatment, and are sent to the cracking furnace at different temperatures, which will affect the detection accuracy.

Method used

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  • Manual type device for sampling quantitative gas
  • Manual type device for sampling quantitative gas
  • Manual type device for sampling quantitative gas

Examples

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Embodiment Construction

[0012] Referring to the accompanying drawings, the thermostatic chamber 5 is fixed inside the chassis 1. There is a heat dissipation plate 8 at the bottom of the inner cavity of the thermostatic chamber, and heat preservation panels 2 are provided on the four walls. The heat dissipation plate is embedded with an electric heating core 11 and is equipped with a temperature sensor 12. The panel of the chassis 1 Two-position six-way valves 6 and 7 and needle valves 9 and 10 are mounted on the top. Two quantitative tubes are arranged in the thermostatic chamber, wherein the quantitative tube 3 has a volume of 10ml, and its two ends are connected with the two ports of the six-way valve 7, and the volume of the quantitative tube 4 is 1ml, and its two ends are connected with the two ports of the six-way valve 6. The other ports of the six-way valve are respectively connected with the inlet pipes of sample gas A and B, the sampling needle, the needle valve and the exhaust pipe of excess...

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Abstract

A gas quantitative sample-feeding device of manual type is prepared for setting temperature constant chamber in cabinet; arranging heat radiation flat plate with heating core and temperature transducer as well as quantitative tube in said chamber; connecting two end of said tube to two interfaces of six-way valve; connecting the other interfaces of six-way valve separately to sample gas outlet and inlet tube, residual gas exhaust pipe and carrier gas inlet pipe; using two spiral anticorrosion tubes as quantitative tube and arranging needle valve in carrier gas inlet tube.

Description

technical field [0001] The invention relates to a manual gas quantitative sampling device, in particular to a type of analytical instrument for measuring the content of certain elements in crude oil and its derivative products in the gaseous state. Background technique [0002] When using the classic coulometric method or applied optical technology to measure certain elements in crude oil and its derivatives in the gaseous state, such as the content of N and S elements in natural gas, biogas and other substances, it is necessary to put a certain amount of the sample to be tested in the gaseous state. , sent to the cracking furnace at 1100°C, let it fully burn in oxygen, and then enter the detection room to measure the content of the corresponding elements. At present, there is no specific gas quantitative sampling device. Usually, during detection, the gas to be tested is filled into a skin bag, and then the needle of the syringe is inserted into the skin bag for extraction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/36G01N35/00
Inventor 曹余勤马爱萍费利军王大余李康祥顾粉林
Owner JIANGSU JIANGFEN ELECTROANALYTICAL INSTR
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