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All-plastic floating bucket type pneumatometer

A technology of spirometer and floating barrel, which is applied in the field of volumetric static measurement of gas volume, can solve the problems of inconvenient storage, easy to rust, and high price of spirometer, and achieve the effect of reducing the cost and water injection volume

Pending Publication Date: 2019-02-15
成都华凡科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention is dedicated to solving the problems of high price of the spirometer, easy to rust, inconvenient storage, unstable measurement, etc.

Method used

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  • All-plastic floating bucket type pneumatometer

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Embodiment Construction

[0007] Combine below figure 1 The implementation of the all-plastic floating bucket type spirometer will be described in detail.

[0008] In the first step, first determine that the range of the spirometer is 10 liters.

[0009] In the second step, the size of the floating barrel [1] is determined according to its measuring range: the inner diameter is 210mm; the height of the barrel is 356mm, the wall thickness of the barrel is 2mm, and there is no vent valve. Then determine the size of the outer barrel [2]: the inner diameter is 218mm, the height of the barrel is 360mm, the bottom of the barrel is hollow and there is no round platform [3] under the bottom surface, the diameter of the bottom surface of the round platform is 198mm, the diameter of the upper bottom surface [5] is 138mm, and the round platform [3] ] height 312mm; upper inlet and outlet air pipe [4] inner diameter 9mm, height 44mm, pipe wall thickness 5mm; lower air inlet and outlet pipe [6] inner diameter 9mm, ...

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Abstract

The invention relates to an all-plastic floating bucket type pneumatometer, which is a volume-type static instrument for measuring gas volume. The air inlet and exhaust of the instrument share one pipe, which saves a vent orifice valve arranged on the top of the floating bucket of a prior pneumatometer. The resources are saved, no hidden danger of air leakage from floating bucket exists. The outerbarrel of the prior floating bucket type pneumatometer is made of metal, and the outer barrel, the an air inlet pipe and supporting legs are combined into a whole body by using more than ten parts which are subjected to tapping, welding, riveting, fastening and other processes. A lot of manpower, materials and financial resources are used to complete the production process. The outer barrel bottom is raised up to form a round table (body) with a hollow bottom without a bottom surface. The air outlet pipe, the supporting legs and the outer barrel are conveniently integrated, one time moldingis achieved through injection molding, a lot of manpower and material resources are saved, the rust is avoided, the device is easy to keep, the service life is prolonged, and the use of water injection is reduced. The pneumatometer can also be used for biogas measurement of an anaerobic digestion test.

Description

technical field [0001] The invention relates to a volumetric static gas volume measuring instrument. Background technique [0002] Before the 1990s, floating barrel spirometers were still commonly used. Its outer barrel, intake pipe and legs were all made of metal, which was complicated to make, expensive, and easy to rust. It was gradually replaced by electronic spirometers. meter replaced. However, there are many problems with electronic spirometers, such as higher prices, inaccurate and unstable measurements, and the inability to judge the accuracy of measurements with the naked eye. Many medical examination institutions do not set up the determination of spirometry today. Or the floating bucket spirometer is more intuitive and reliable for measuring vital capacity. The invention is dedicated to solving the problems of high price, easy rust, inconvenient storage, unstable measurement and the like of the spirometer. Contents of the invention [0003] The invention us...

Claims

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Application Information

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IPC IPC(8): A61B5/091G01F22/00
CPCA61B5/091G01F22/00
Inventor 符征鸽
Owner 成都华凡科技有限公司
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