Plug-in sampling device of mixed gas burning type heat value instrument and application thereof

A technology of mixed gas and sampling device, which is applied in the direction of sampling, measuring devices, instruments, etc., can solve the problems of uneven gas composition and inaccurate measurement of the calorific value of mixed gas, and achieve the effect of accurate measurement

Active Publication Date: 2014-06-25
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main components in the mixed gas are divided according to the ratio from large to small: N 2 , CO, H 2 , CO 2 、CH 4 , due to the different proportions of the components, the gas composition is uneven during the long-distance pipeline transportation process, and the lighter H 2 Gradually distributed to the upper part of the pipeline, the traditional gas calorific value meter only takes gas from holes in the pipeline, which obviously cannot accurately measure the calorific value of the mixed gas after long-distance pipeline transportation

Method used

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  • Plug-in sampling device of mixed gas burning type heat value instrument and application thereof
  • Plug-in sampling device of mixed gas burning type heat value instrument and application thereof
  • Plug-in sampling device of mixed gas burning type heat value instrument and application thereof

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Embodiment 1

[0025] Such as figure 1 As shown, this embodiment provides a plug-in sampling device for a mixed gas combustion calorimeter, including a three-way valve 8, a straight ball valve 6, a ball valve 4 and a sampling pipe 1 arranged in sequence from top to bottom in the vertical direction. The three-way valve 8 is a left and right communication structure, and a calorific value meter connecting pipe 9 is horizontally arranged on its left and right ports respectively, and its lower port is connected with the upper port of the straight-through ball valve 6 through the first thread connecting pipe 7, and the first thread The upper and lower ports of the connecting pipe 7 are respectively welded and fixed to the lower port of the three-way valve 8 and the upper port of the straight-through ball valve 6;

[0026] Sampling tube 1 is arranged vertically, its lower port is closed and its upper port passes through ball valve welding base 2 and ball valve 4 successively from bottom to top and ...

Embodiment 2

[0033] Such as image 3 As shown, the present embodiment provides an application of a plug-in sampling device for a mixed gas combustion type calorific value meter. A sampling hole is punched at the top of the mixed gas pipeline 10, and the sample of the plug-in sampling device for a mixed gas combustion type calorific value meter is The pipe 1 extends into the sampling hole in the vertical direction, and the lower surface of the ball valve welding base 2 is welded and fixed to the mixed gas pipeline 10. Since the size of the mixed gas pipeline 10 is DN1000, the length of the sampling pipe 1 located at the lower end of the ball valve welding base 2 Therefore, the distance between the lower end of the sampling pipe 1 and the bottom end of the mixed gas pipeline 10 is one-tenth of the diameter of the mixed gas pipeline. connect;

[0034] Taking the calorific value meter of mixed gas for internal use in Nansteel as an example, the 200,000 gas tanks of Nansteel Energy Center, cok...

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Abstract

The invention discloses a plug-in sampling device of a mixed gas burning type heat value instrument. The sampling device comprises a three-way valve, a shoot-through ball valve, a ball valve and a sampling pipe which are successively arranged from top to bottom, wherein the sampling pipe is provided with eight opening holes which are arranged in an interval manner along a length direction, and the diameters of the opening holes are successively enlarged from top to bottom. The invention also designs an application of the plug-in sampling device of the mixed gas burning type heat value instrument. The plug-in sampling device of the mixed gas burning type heat value instrument and the application thereof disclosed by the invention have the advantages that a gas sample can be uniformly obtained, and the composition characteristic of the gas is really reflected, so that the measurement of the heat value of mixed gas is exact.

Description

technical field [0001] The invention relates to a mixed gas calorific value measurement technology, in particular to a mixed gas combustion type calorific value meter insertion type sampling device and its application. Background technique [0002] Coal gas is a high-quality and efficient energy source, and has become an important commodity in the international energy market. Due to its different physical and chemical properties, there are great differences in calorific value and density; when measuring gas, the calorific value of gas Gas flow and gas flow are important parameters to indicate gas quality, among which calorific value directly affects the accuracy of measurement. [0003] In iron and steel enterprises, in view of the diversified characteristics of gas, especially mixed gas, gas calorific value meters are often used to analyze gas components. The combustion calorific value meter uses the principle of heat balance to measure the net calorific value. When the ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/26
Inventor 董书云张晓俊徐贵富张明晨
Owner NANJING IRON & STEEL CO LTD
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