CN-121977755-A - Respiratory protection equipment suitability checking system and method

CN121977755ACN 121977755 ACN121977755 ACN 121977755ACN-121977755-A

Abstract

The application relates to the technical field of respiratory protection equipment, in particular to a suitability test system and method of respiratory protection equipment, wherein the suitability test system comprises a respiratory protection hood, an aerosol generation module, a particulate matter monitoring module and a control module, a closed protection space which is matched with the head of a human body is formed in the respiratory protection hood, the respiratory protection hood is provided with a neck sealing piece and a gas connecting ring, an air outlet of the aerosol generation module is communicated with the gas connecting ring through an air duct, the particulate matter monitoring module is used for collecting particulate matter concentration inside and outside the closed protection space, and the control module is used for receiving the particulate matter concentration and calculating a suitability test result according to the particulate matter concentration. The suitability checking system of the respiratory protection equipment judges the fit degree of the equipment and a wearer through the standardized flow and the accurate monitoring, ensures the respiratory safety of operators and realizes the standardization and the accuracy of the detection flow.

Inventors

XU BO
ZHANG LU
BI YAJING
TENG LIXIA
GONG ZHONGKAI
WANG HUISHAN
LAI ZIYANG
Shuai Wangcai
JI YANMING
WANG CHONG
MA SHIHAI
ZHANG MINGMING
WANG QI
LIU ZHEHAO

Assignees

中国安全生产科学研究院

Dates

Publication Date: 20260505
Application Date: 20260203

Claims (10)

1. A respiratory protection equipment suitability checking system, comprising: The breathing protective head cover is internally provided with a closed protective space which is matched with the head of a human body, and is provided with a neck sealing piece and a gas connecting ring; the gas outlet of the aerosol generating module is communicated with the gas connecting ring through a gas guide pipe and is used for generating aerogel and conveying the aerogel into the closed protective space; The particle monitoring module is used for collecting the concentration of particles inside and outside the closed protective space; And the control module is used for receiving the particle concentration and calculating a suitability test result according to the particle concentration.
2. The respiratory protection equipment suitability testing system of claim 1, wherein the particulate matter monitoring module includes a first particulate matter sensor disposed within the enclosed protective space for collecting a first particulate matter concentration within the enclosed protective space and a second particulate matter sensor disposed on an outer surface of the respiratory protection hood for collecting a second particulate matter concentration outside of the enclosed protective space.
3. The respiratory protection equipment suitability testing system of claim 2, wherein the respiratory protection hood comprises: an air storage cavity is formed between the inner head cover and the outer head cover; and the vibration type megaphone is arranged on the outer hood and is used for being in communication connection with the control module.
4. The respiratory protection equipment suitability testing system of claim 3, wherein the first particulate matter sensor is disposed on an inner side of the inner hood and the second particulate matter sensor is disposed on an outer side of the outer hood.
5. The respiratory protection equipment suitability testing system of claim 4, wherein the control module comprises: The portable workstation is used for receiving the first particle concentration and the second particle concentration, calculating a suitability factor according to the first particle concentration and the second particle concentration, and obtaining a suitability test result; And the communication module is used for being in communication connection with the vibration type megaphone and sending a voice action instruction to the closed protective space.
6. The respiratory protection equipment suitability testing system of claim 1, wherein the aerogel produced by the aerogel generating module has a particle size of 0.02-1.0 μm.
7. A method of suitability checking respiratory protection equipment, characterized by being applied to the respiratory protection equipment suitability checking system of claims 1 to 6, comprising the steps of: generating aerosol, and conveying the aerosol into the respiratory protection hood to stabilize the concentration in the closed protection space; a tester completes a plurality of actions according to voice instructions, and monitors the concentration of particulate matters inside and outside the respiratory protection hood in real time; And calculating a suitability test result according to the concentration of the particles.
8. The method of claim 7, wherein the testing personnel perform a number of actions according to voice instructions, and monitoring the concentration of particulate matter inside and outside the respiratory protection hood comprises: the tester executes corresponding test actions according to the received voice instructions; During each test action, the concentration of the particulate matter in the respiratory protection hood and outside the respiratory protection hood is monitored in real time, and the first particulate matter concentration and the second particulate matter concentration are obtained respectively.
9. The method for compliance verification of respiratory apparatus of claim 8, characterized in that, during each test action, monitoring in real time the particulate matter concentration in the respiratory protection hood and outside the respiratory protection hood, respectively obtaining a first particulate matter concentration and a second particulate matter concentration includes: sending out the voice command according to fixed frequency, and executing each test action according to the same preset time; And during each test action, synchronously recording the first particle concentration and the second particle concentration by using the same clock source, and realizing time axis alignment of two paths of data.
10. The method of claim 9, wherein calculating a fitness test result based on the particulate matter concentration comprises: Calculating the ratio of the concentration of the second particulate matter to the concentration of the first particulate matter to obtain the real-time leakage rate of each test action; performing arithmetic average on a plurality of real-time leakage rates of each test action according to the data acquisition frequency to obtain a standard leakage rate of the test action; Performing arithmetic average on the standard leakage rates of a plurality of test actions to obtain a suitability factor; And comparing the suitability factor with a preset threshold value to obtain a suitability test result.

Description

Respiratory protection equipment suitability checking system and method Technical Field The application relates to the technical field of respiratory protection equipment, in particular to a respiratory protection equipment suitability test system and a respiratory protection equipment suitability test method. Background Respiratory protection equipment is a key device for guaranteeing the respiratory safety of personnel in dangerous environment operation, and the tightness of the respiratory protection equipment and the face of a wearer directly determines the protection effect. If the equipment is poorly suited, harmful gases or particulates can easily leak into the breathing circuit, causing health risks. The existing suitability checking systems suffer from a number of deficiencies: part of the system detection flows are not standard, and lack of unified action guidance and data acquisition standards leads to poor repeatability of detection results, and part of the system has insufficient sealing performance, so that leakage is easy to occur at the joint of the headgear, the human body and the respirator pipeline, and the concentration measurement accuracy is affected. The monitoring precision and the intelligent level are low, the concentration difference of particles with different particle diameters is difficult to accurately capture, the data transmission is dependent on wired connection, the operation flexibility is limited, partial system functions are single, only basic concentration measurement can be completed, the functions of data storage, report generation and multi-person management are lacked, and the requirements of batch detection and quality tracing cannot be met. In addition, the suitability of the existing system is insufficient, the pipeline connection of different types of respirators is difficult to be compatible, the structural design is unreasonable, and the wearing comfort and the smoothness of the detection flow are affected. In view of these problems, there is a need to develop a respiratory protection equipment suitability test system with standardized flow, reliable sealing, accurate monitoring and high intelligent degree. Disclosure of Invention The embodiment of the application provides a respiratory protection equipment suitability test system and method, which are suitable for quantitative suitability test of various respiratory protection equipment, and the fit degree of the equipment and a wearer is judged through standardized flow and accurate monitoring, so that the respiratory safety of operators is ensured, the standardized, reliable sealing, accurate monitoring and intelligent data processing of the detection flow are realized, and the problems of irregular detection, poor sealing, insufficient precision and single function of the traditional system are effectively solved. In one aspect, the present application provides a respiratory protection equipment suitability checking system comprising: The breathing protective head cover is internally provided with a closed protective space which is matched with the head of a human body, and is provided with a neck sealing piece and a gas connecting ring; the gas outlet of the aerosol generating module is communicated with the gas connecting ring through a gas guide pipe and is used for generating aerogel and conveying the aerogel into the closed protective space; The particle monitoring module is used for collecting the concentration of particles inside and outside the closed protective space; And the control module is used for receiving the particle concentration and calculating a suitability test result according to the particle concentration. In some embodiments, the particulate monitoring module includes a first particulate sensor and a second particulate sensor, the first particulate sensor is disposed in the enclosed protective space and configured to collect a first particulate concentration in the enclosed protective space, and the second particulate sensor is disposed on an outer surface of the respiratory protection hood and configured to collect a second particulate concentration outside the enclosed protective space. In some embodiments, the respiratory protection hood comprises: an air storage cavity is formed between the inner head cover and the outer head cover; and the vibration type megaphone is arranged on the outer hood and is used for being in communication connection with the control module. In some embodiments, the first particulate matter sensor is disposed on an inner side of the inner head cover and the second particulate matter sensor is disposed on an outer side of the outer head cover. In some embodiments, the control module includes: The portable workstation is used for receiving the first particle concentration and the second particle concentration, calculating a suitability factor according to the first particle concentration and the second particle concentration, and obtaining a suitability