Measuring instrument and measuring method of greenhouse gases

A greenhouse gas and measuring instrument technology, applied in the fields of environmental protection technology and earth science, can solve the problems of unsuitable greenhouse gas emission reduction, cost, fertility, etc., and achieve the effects of low production cost, easy production, and simple production process of the instrument

Inactive Publication Date: 2011-09-07
南京科海生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the measurement methods of greenhouse gases in farmland mostly adopt the static box method, which is time-consuming, labor

Method used

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  • Measuring instrument and measuring method of greenhouse gases

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Manufacture of greenhouse gas measuring instrument:

[0027] Greenhouse gas collection device made of glass, ethanol absorption bottle (gas washing bottle), concentrated sulfuric acid absorption bottle (gas washing bottle), sodium hydroxide absorption bottle (gas washing bottle), micro-scale connecting pipe, U-shaped scale measurement tube, platinum electric heater, control valve, press figure 1 The schematic structures are connected, wherein the greenhouse gas collection device can be made into a bottomless open collection device so as to be placed on the soil surface of the farmland to measure the greenhouse gas produced by the soil and plants. It can also be made into a sealed greenhouse gas collection device with a bottom, which is used in the laboratory to study the greenhouse gases produced by soil microorganisms or plants or sewage.

Embodiment 2

[0028] Example 2: Greenhouse gas measurement

[0029] Connect the greenhouse gas measuring instrument produced above according to the diagram, check the air tightness, add an appropriate amount of colored inert liquid into the U-shaped graduated measuring tube, add absolute ethanol into the ethanol absorption bottle, and add concentrated sulfuric acid into the sulfuric acid absorption bottle , add 0.1-15M sodium hydroxide solution into the sodium hydroxide absorption bottle, place the bottom of the greenhouse gas collection device of the analyzer on the farmland soil, so that the bottom of the collection device is sealed with the soil, so that the greenhouse gas produced by the soil and plants When entering the collection device, the colored liquid column of the U-shaped scale metering tube changes, and the difference between the two ends is the total amount of greenhouse gas produced within a certain period of time. Draw 1 ml of gas from the control valve on the upper end of ...

Embodiment 3

[0031]Greenhouse gas measuring instrument, including U-shaped scale metering tube, gas collection device 1 and gas washing bottle, the bottom of the gas collection device is open, the first U-shaped scale metering tube is connected to the gas collection device, and each gas washing bottle is equipped with an air inlet mouth and exhaust port, the gas washing bottle a2 is connected in series with the gas collection device; after the air inlets of the gas washing bottle b3 and the gas washing bottle c4 are connected in parallel with the gas collecting device, the exhaust port is connected in parallel with the third U-shaped scale metering tube; The gas washing bottle d5 and the gas washing bottle e6 are connected in series with the gas collection device in sequence, and the exhaust port of the gas washing bottle e is connected with the fourth U-shaped scale metering tube; wherein the washing gas bottle b3 and the gas washing bottle c4 are respectively equipped with ethanol and Sul...

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Abstract

The invention provides a measuring instrument and a measuring method of greenhouse gases, wherein the measuring instrument comprises an U-shaped scale measurement tube, a gas collecting device and gas washing bottles; connecting pipelines are all trace scale measurement tubes; each trace scale measurement tube is provided with a control valve; the inlets/outlets of the gas collecting device, eachgas washing bottle and each connecting tube are all provided with control valves. The measuring instrument and measuring method provided by the invention can synchronously measure the total amount ofthe greenhouse gases, the amount of each single greenhouse gas and the production speed fast, conveniently and effectively at a low cost, and can be used for scientific research and environmental monitoring; especially, the energy-saving and emission-reduction obligations undertaken and carried out by governments of countries according to the requirements of intergovernmental frame agreements have the more need of fast detectors of various greenhouse gases for ensuring the emission reduction of greenhouse gases, so that environment is protected, and global warming and generation of climate disasters are avoided.

Description

[0001] technical field [0002] The invention belongs to the fields of environmental protection technology and earth science technology, and in particular relates to the manufacture of a greenhouse gas measuring instrument and a method for measuring greenhouse gas. Background technique [0003] Greenhouse gases including CO 2 、CH 4 , N 2 O, fluoroalkanes, sulfur alkanes, etc. The most common greenhouse gas is CO 2 , due to the large amount of CO contained in the glass greenhouse 2 , when the sun shines on the glass greenhouse during the day, due to CO 2 It can absorb the long-wave light in sunlight, and at night, it can radiate short-wave light, which leads to the phenomenon that the temperature in the glass greenhouse rises, which is called greenhouse gas and greenhouse effect. [0004] Now it is found that the gases that can produce the greenhouse effect except CO 2 CH 4 , N 2 O, fluoroalkanes, sulfur alkanes, etc. while CH 4 , N 2 The warming effect of O is ...

Claims

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Application Information

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IPC IPC(8): G01N30/00
Inventor 吴洪生
Owner 南京科海生物技术有限公司
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