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A device and method for simulating real human breathing

A real human body and breathing device technology, applied to measuring devices, instruments, scientific instruments, etc., can solve problems such as ignoring the directionality of breathing jets, large errors, and not reflecting the process of human inhalation, so as to improve the real response level and overcome Experimental error, effect of improving air quality

Active Publication Date: 2017-05-03
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantages: 1) It ignores the transient nature of the human breathing process, and also ignores the directionality of the breathing jet 2) It does not reflect the process of human inhalation
At present, breathing devices that simulate the real human breathing process are rarely used in China. Foreign scholars [3] pointed out through CFD simulation analysis that when using a constant breathing boundary to study the spread of pollutants, there will be relatively large errors in the human microenvironment, so it is very necessary Develop a device that mimics the normal breathing process of the human body, especially in the current situation of severe air pollution

Method used

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  • A device and method for simulating real human breathing
  • A device and method for simulating real human breathing
  • A device and method for simulating real human breathing

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Embodiment Construction

[0033] In order to describe the present invention more specifically, the present invention will be described in detail below in conjunction with the accompanying drawings. Such as figure 1As shown, the device consists of an exhalation pump and an inhalation pump. The two sets of equipment are basically the same in principle and structure, except that the exhalation pump is equipped with a heating section, which can control the temperature of exhalation. The main body of the suction pump is a sealed cylinder with a sealed piston inside the cylinder, the piston and the rack are connected by bolts; the stepping motor outside the cylinder is connected with the rack through the gear; the DSP controller is connected to the driver through the control line, and the driver It is connected with the motor through the drive wire; there are two ventilation holes on the other side of the cylinder, and the ventilation pipes of the two ventilation holes are respectively connected to the cylin...

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Abstract

The invention relates to a real human body breathing simulation device and method. The device comprises an exhaling pump, an inhaling pump and a heater system; a main body of the exhaling pump is a sealed gas cylinder, the interior of the gas cylinder is provided with a sealed piston, and the piston is connected with a rack through a bolt; a stepping motor outside the gas cylinder is in cooperative connection with the rack through a gear; a DSP controller is connected with a driver through a control line, and the driver is connected with the motor through a driving guide line; the other side of the gas cylinder is provided with two vent holes, and vent pipes of the two vent holes are connected with the gas cylinder through one-way valves respectively; the exhaling pump has the same structure as the inhaling pump while the tail end part of one vent pipe of the exhaling pump is provided with a heating element; a power supply is connected with the heating element by a time relay. Experimental errors brought by a conventional human body breathing device are overcome. The real response degree of experiment working conditions on real working conditions is improved, a pollution exposure level and a spreading rule of a human body breathing zone can be accurately reflected, and an important role is played for improving the building indoor air quality.

Description

technical field [0001] The invention relates to an important simulation device and method for studying the exposure level of human body pollutants and the transmission of respiratory pollutants in a building, and belongs to the field of indoor air quality and pollutant transmission. Background technique [0002] Modern people spend about 90% of their time indoors. A good indoor environment can make people feel energetic, healthy and work efficiently. However, in the past 30 years, many countries in the world have experienced problems with indoor air quality, and many people complain about poor air quality. Indoor air pollution can trigger the following three diseases: sick building syndrome, building-related diseases, and multiple chemical pollutant allergies. In addition, poor indoor air quality can trigger asthma and even cancer. [0003] Compared with developed countries, my country's indoor air quality problems are more serious and have a wide range of sources. Its or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00
Inventor 孙贺江冯连元
Owner TIANJIN UNIV
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