Real human body breathing simulation device and method

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

Active Publication Date: 2015-10-14
TIANJIN UNIV
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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 th

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  • Real human body breathing simulation device and method

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[0033] In order to describe the present invention more specifically, the present invention will be described in detail below with reference to the accompanying drawings. like figure 1As shown, the device consists of an expiratory pump and an inspiratory 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, so that the temperature of exhalation can be controlled. The main body of the air suction pump is a sealed cylinder, and the inside of the cylinder is equipped with a sealed piston, and the piston and the rack are connected by bolts; the stepper motor outside the cylinder is connected with the rack through the gear; the DSP controller is connected to the driver through the control line, 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 conn...

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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 in buildings and the transmission of respiratory pollutants, and belongs to the field of indoor air quality and pollutant transmission. Background technique [0002] Modern people spend about 90% of their time indoors, and a good indoor environment can make people feel energetic, healthy, and work efficiently. However, in the past three decades, many countries in the world have experienced problems with indoor air quality, and many people have complained about poor air quality. Indoor air pollution can cause three diseases: sick building syndrome, building-related diseases, and allergies to various chemical pollutants. In addition, poor indoor air quality can lead to 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...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 孙贺江冯连元
Owner TIANJIN UNIV
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