Apparatus simulating coughing of real human being

A solenoid valve, particulate matter technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as large differences, large uncertainties and difficulties in real people

Active Publication Date: 2016-10-12
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The subject of cough research is human, but from the perspective of safety and health, it is difficult to conduct experiments on real human bodies
Moreover, in terms of the repeatability of the experiment, the uncer

Method used

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  • Apparatus simulating coughing of real human being
  • Apparatus simulating coughing of real human being
  • Apparatus simulating coughing of real human being

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Embodiment Construction

[0035] 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 2 As shown, the entire system consists of a compressed air generation system and a particle generation system. Including particle generation system and compressed air jet generation system; particle generation system includes particle generator (1), emptying solenoid valve (2), dust adding solenoid valve (4), dust generation control time relay (4); particle generation The outlet of the device (1) is connected in parallel with the emptying solenoid valve (2) and the dusting solenoid valve (3), and the two solenoid valves are connected to the dusting time relay (4); the jet air generation system includes an air compressor (5), pressure Table (7), pressure regulating valve (6), flow regulating valve (8), jet control solenoid valve (9), jet control time relay (10) and cylinder (11); air compress...

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Abstract

The invention relates to an apparatus simulating coughing of a real human being. The apparatus comprises a particulate matter generation system including a particulate matter generator, an evacuation solenoid valve, a dust-adding solenoid valve and a dust-adding time control relay, and a compressed air jet generating system including an air compressor, a pressure gauge, a pressure-regulating valve, a flow control valve, a jet control solenoid valve, a jet time-control relay and a cylinder, wherein an air outlet pipe of the jet control solenoid valve and a pipe led out from the dust-adding solenoid valve of the particulate matter generation system are parallelly connected and then are connected to a coughing jet pipeline. This apparatus simulates coughing characteristics of a real human being, and meets the real human being coughing speed and flow rate, Jet speed change and temperature are consistent with the parameters of a real human being. Starting and stopping can be controlled only through solenoid valves, and operation is simple and accurate. A high-frequency hot line wind-velocity indicator is employed to determine the changing rules of gas flow velocity of a jet outlet. Parameters can be accurately determined according to the speed and flow curve of a measurement result calibrating device.

Description

technical field [0001] The invention relates to an important simulation device for studying the exposure level of human body pollutants and the transmission of cough pollutants in building rooms, is a device for simulating real human coughs, and belongs to the field of indoor air quality and pollutant transmission. Background technique [0002] In recent years, airborne diseases have seriously threatened people's health. For example, SARS, influenza virus and Ebola virus, which is raging in Africa, can spread in the air through droplets. Coughing is a major source of droplets. Inhalation of air with this virus can cause disease. [0003] Since the first confirmed case of SARS in 2003, SARS has quickly spread around the world. One of the major ways of transmission is on the plane. The infected body spreads the virus to the surrounding air through breathing and coughing. Healthy people pass through Viruses are contracted by inhaling virus-contaminated air. According to stati...

Claims

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Application Information

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IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 孙贺江崔国丰
Owner TIANJIN UNIV
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