CN109470427A - A kind of respirator detector and its detection method - Google Patents
A kind of respirator detector and its detection method Download PDFInfo
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- CN109470427A CN109470427A CN201811529081.9A CN201811529081A CN109470427A CN 109470427 A CN109470427 A CN 109470427A CN 201811529081 A CN201811529081 A CN 201811529081A CN 109470427 A CN109470427 A CN 109470427A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention discloses a kind of respirator detectors, comprising: respirator gas cylinder to be measured；High pressure sensor, one end are connect with the respirator gas cylinder to be measured, and the other end is connect with signal receiving end；First shut-off valve, one end are connect with the respirator gas cylinder to be measured；Compression release valve of respirator to be measured is connect with first shut-off valve；Middle pressure sensor, one end are connect with the compression release valve of respirator to be measured, and the other end is connect with the signal receiving end；Second shut-off valve is connect with the compression release valve of respirator to be measured；Respirator adjuster to be measured is connect with second shut-off valve；Artificial lung is connect with the respirator adjuster to be measured；Low pressure sensor, one end are connect with the artificial lung, and the other end is connect with the signal receiving end.The present invention also provides a kind of detection methods of respirator detector, disposably property can measure whole airtightness, the outlet pressure of compression release valve of respirator, the respiratory resistance of breathing regulator and flow detection.
Description
Technical field
The present invention relates to respirator detection technique fields, more particularly, the present invention relates to a kind of respirator detector and
Its detection method.
Background technique
Free-air diving apparatus, it is mainly used for use when diving and lifesaving.Respirator requires to have in context of detection
Exfactory inspection, inspection, preoperation inspection this three aspect requirement.In fact, being set due to limited conditions general lack of this detection
It is standby, and respirator is without detection, if once technical parameter changes and do not reach requirement, it is possible to the effect that makes to dive under water and escape is big
It is big to reduce, or even the life of user can be endangered.
Respirator has combined test stand to detect all technical before factory, and there are volumes for this monitor station
Greatly, the debugger that weight is big, movement is inconvenient, uses now is purely mechanical structure, using mechanical compression table and float
Flowmeter detection pressure and flow, this pressure gauge and flowmeter are limited by structure, will increase the volume of entire debugger with
Weight.When safeguarding inspection declaration, a component by repeatedly connection and will be assembled and disassembled when testing pressure and flow, cumbersome, be needed
It could be used after wanting professional to train, and frequently assembly and disassembly will affect the state of component.User does not have in preoperation inspection
There is special equipment, need to detect gas cylinders group, pressure reducing valve, breathing regulator pressure respectively with high, medium and low voltage detection table respectively, needs
To feel experiencing whether respirator breathing is steady, smooth, gas supply is normal with individual.Also each joint, inspection are smeared with suds
Look into each junction whether gas leakage, method is relatively backward, and error is larger.
Summary of the invention
It is an object of the invention to design and develop a kind of respirator detector, respirator is split into cylinder package, is subtracted
Pressure valve, breathing regulator three parts, and be connected with detector, it can disposably measure whole airtightness, respirator decompression
The outlet pressure of valve, the respiratory resistance of breathing regulator and flow detection, it is easy to operate.
Another object of the present invention is to have designed and developed a kind of detection method of respirator detector, being capable of disposable property
Whole airtightness, the outlet pressure of compression release valve of respirator, the respiratory resistance of breathing regulator and flow detection are measured, and determination is exhaled
The safety of haustorium pressure reducing valve and breathing regulator.
Technical solution provided by the invention are as follows:
A kind of respirator detector, comprising:
Respirator gas cylinder to be measured；And
High pressure sensor, one end are connect with the respirator gas cylinder to be measured, and the other end is connect with signal receiving end；
First shut-off valve, one end are connect with the respirator gas cylinder to be measured；
Compression release valve of respirator to be measured is connect with first shut-off valve；
Middle pressure sensor, one end are connect with the compression release valve of respirator to be measured, and the other end and the signal receiving end connect
It connects；
Wherein, the high pressure sensor is in parallel with first shut-off valve, compression release valve of respirator to be measured and middle pressure sensor；
Second shut-off valve is connect with the compression release valve of respirator to be measured；
Respirator adjuster to be measured is connect with second shut-off valve；
Artificial lung is connect with the respirator adjuster to be measured；
Low pressure sensor, one end are connect with the artificial lung, and the other end is connect with the signal receiving end；
Wherein, medium pressure sensor and second shut-off valve, respirator adjuster to be measured, artificial lung and low pressure sense
Device is in parallel.
Preferably, further includes:
Triple valve comprising arrival end, first exit end, second outlet end and third outlet end；
Wherein, the arrival end of the triple valve is connect with the compression release valve of respirator to be measured, first exit end and it is described in
Pressure sensor connection, second outlet end is connect with second shut-off valve；
Safety valve is connect with the third outlet end of the triple valve.
Preferably, further includes:
Mass sensor, one end are connect with the respirator adjuster to be measured, and the other end and the signal receiving end connect
It connects,
Wherein, the mass sensor is in parallel with the artificial lung and low pressure sensor；
The exit of the respirator gas cylinder to be measured is arranged in stop valve for cylinder.
Preferably, further includes:
The junction of the respirator gas cylinder and high pressure sensor and the first shut-off valve to be measured is arranged in solenoid valve；
The connection of the respirator adjuster and the artificial lung and mass sensor to be measured is arranged in solenoid directional control valve
Place.
Preferably, the signal receiving end includes:
Signal conversion module connects with the high pressure sensor, middle pressure sensor, low pressure sensor and mass sensor
It connects, for receiving the detection data for converting the high pressure sensor, middle pressure sensor, low pressure sensor and mass sensor；
Computer is connect with the signal conversion module.
Preferably, the artificial lung includes:
Servo motor；And
Crank connecting, one end are connect with the output end bias of the servo motor, and the other end is set in connecting rod
On, and can be axially moved along the connecting rod；
Attachment base is fixedly connected with the connecting rod；
Piston, one end are fixedly connected with the attachment base,
Cylinder barrel, the piston other end is arranged in the cylinder barrel, and can be axially moved along the cylinder barrel.
A kind of detection method of respirator detector, includes the following steps:
Step 1: connecting component to be detected, open stop valve for cylinder and the first shut-off valve, close the second shut-off valve, pass through biography
Sensor detects the pressure p at compression release valve of respirator to be measuredv；
As 0.54≤pvWhen≤0.64, the status safety of compression release valve of respirator to be measured；
Work as pv< 0.54 or pvWhen > 0.64, the nut of compression release valve of respirator to be measured is adjusted, so that
0.54≤pv≤0.64；
Step 2: continuing that stop valve for cylinder and the first shut-off valve is kept to open, open the second shut-off valve, examined by sensor
Survey the pressure at compression release valve of respirator to be measured, the rate of discharge of respiratory resistance, inspiratory resistance and respirator adjuster to be measured, really
The safety coefficient of fixed respirator adjuster to be measured:
Wherein, ξ is the safety coefficient of respirator adjuster to be measured, and ψ is correction coefficient, p1For expiratory resistance, p2For air-breathing resistance
Power, pvFor the pressure at compression release valve of respirator to be measured, Q is the rate of discharge of respirator adjuster to be measured；
As ξ≤0.85, the status safety of respirator adjuster to be measured；
As ξ > 0.85, the state of respirator adjuster to be measured is dangerous.
Preferably, further includes:
The first shut-off valve and the second shut-off valve are closed, the pressure of respirator gas cylinder to be measured is detected by sensor, works as gas cylinder
It when pressure is less than 18MPa, is inflated into respirator gas cylinder to be measured, so that storage pressure is more than or equal to 18MPa.
Preferably, before detection, whole airtightness is detected, when the pressure drop in pipeline is less than or equal to 2MPa/min
When, whole airtightness is good.
Preferably, when compression release valve of respirator to be measured fails, start safety valve, and the cracking pressure of the safety valve is
1~1.3MPa.
It is of the present invention the utility model has the advantages that
(1) present invention develops a kind of respirator detector, and respirator is split into cylinder package, pressure reducing valve, respiratory regulation
Device three parts, and being connected with detector, can disposably measure whole airtightness, compression release valve of respirator outlet pressure,
The respiratory resistance and flow detection of breathing regulator, it is easy to operate.
(2) the artificial lung structure of variable working condition is devised, servo motor has been selected and is driven with adjustable crank driving mechanism
It is dynamic, it efficiently solves the problems, such as connecting rod swing, analog signal voltage is issued by data module to control motor speed, is effectively solved
Connecting rod swing problem, and the quota for being easily achieved lung capacity is adjusted, and with this realizes artificial lung change working.
(3) it devises dedicated operations software to detect respirator, and detection data is recorded and analyzed, formed
Examining report, and print, software has objective interface, and it is easy to operate, reduce the workload of operator.
(4) present invention has designed and developed a kind of detection method of respirator detector, disposably property can measure complete machine gas
Close property, the outlet pressure of compression release valve of respirator, the respiratory resistance of breathing regulator and flow detection, and determine compression release valve of respirator
With the safety of breathing regulator.
Detailed description of the invention
Fig. 1 is the schematic diagram of respirator detector of the present invention.
Fig. 2 is the structural schematic diagram of artificial lung of the present invention.
Fig. 3 is the connection schematic diagram of respirator detector of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
The present invention provides a kind of respirator detector, is made of detection device, computer, inspection software, data connection band etc..
Detection device mainly includes detector cabinet, signal conversion module, high, medium and low pressure sensor, hand stop valve, mass sensitivity
The composition such as device, safety valve, artificial lung, motor and control module, computer and signal conversion module are led to by data connection band connection
Inspection software is crossed on computers to be measured in real time detection data,
According to the working principle of rescue breathing gear, each unit under test of respirator is connected on simulation using carrying out in system
Sensor, electric-controlled parts etc. are arranged in on-line checking on each node, carry out detection operation sum number by computer program control
According to management.
Specific connection type is as shown in Figure 1 comprising respirator gas cylinder to be measured；And high pressure sensor, one end with to
The connection of respirator gas cylinder is surveyed, the other end is connect with signal receiving end；First shut-off valve, one end and respirator gas cylinder to be measured connect
It connects；Compression release valve of respirator to be measured is connect with the first shut-off valve；Middle pressure sensor, one end and compression release valve of respirator to be measured connect
It connects, the other end is connect with signal receiving end；High pressure sensor and first shut-off valve, compression release valve of respirator to be measured and middle pressure pass
Sensor is in parallel；Second shut-off valve is connect with compression release valve of respirator to be measured；Respirator adjuster to be measured, with the second shut-off valve
Connection；Artificial lung is connect with respirator adjuster to be measured；Low pressure sensor, one end are connect with artificial lung, the other end and letter
The connection of number receiving end；Middle pressure sensor and second shut-off valve, respirator adjuster, artificial lung and low pressure sensor to be measured are simultaneously
Connection.
Triple valve comprising arrival end, first exit end, second outlet end and third outlet end；Wherein, triple valve enters
Mouth end is connect with the compression release valve of respirator to be measured, and first exit end is connect with medium pressure sensor, second outlet end and institute
State the connection of the second shut-off valve.Third outlet end is connected with safety valve, when compression release valve of respirator failure when, can by safety valve into
Row pressure discharge operations.The junction of respirator gas cylinder to be measured and high pressure sensor and the first shut-off valve is provided with solenoid valve, is used for
Gas in pipeline is released after the completion of detection, convenient for unloading for all parts.In respirator adjuster to be measured and the artificial lung and
The junction of mass sensor is provided with solenoid directional control valve, convenient for the pipeline switching between artificial lung and mass sensor.
Mass sensor, one end are connect with the respirator adjuster to be measured, and the other end and the signal receiving end connect
It connects, the mass sensor is in parallel with the artificial lung and low pressure sensor；Stop valve for cylinder is arranged in the breathing to be measured
The exit of device gas cylinder.
Signal receiving end includes: signal conversion module, with the high pressure sensor, middle pressure sensor, low pressure sensor
It is connected with mass sensor, converts the high pressure sensor, middle pressure sensor, low pressure sensor and mass sensor for receiving
Detection data；Computer is connect with the signal conversion module.
As shown in Fig. 2, artificial lung includes: servo motor 100；And crank connecting 110, one end and the servo
The output end bias of motor connects, and the other end is set in connecting rod 120, and can be axially moved along the connecting rod 120；Even
Joint chair 130 is fixedly connected with the connecting rod 120；Piston 140, one end are fixedly connected with the attachment base 130, cylinder barrel
150,140 other end of piston is arranged in the cylinder barrel 150, and can be axially moved along the cylinder barrel 150.According to using
Life requirement determines and uses the artificial lung structure of motor driven metal cylinder barrel-piston, according to 30L/min and 15 beat/min of work
Make quota, it is determined that the swept volume of each impulse stroke 2L, in conjunction with the requirement of space layout, the 180cm diameter of we selected typical
Cylinder barrel-piston structure, be conveniently adjusted piston stroke, increase adjustable crank driving mechanism, with servo motor band piston stretch
Contracting, efficiently solves the problems, such as connecting rod swing, issues analog signal voltage by data module to control motor speed, realizes that lung is living
The quota of amount is adjusted.
Detection device is connected with gas cylinders group, pressure reducing valve, breathing regulator respectively, constitutes a set of complete machine, can carry out complete machine
Detection, and component can be detected.After stop valve for cylinder is opened, high pressure gas is sprayed from gas cylinder, because of the first shut-off valve
Also in closed state, so high pressure gas enters high pressure sensor, high pressure sensor induction air pressure detects high-voltage value；It opens
After first shut-off valve, high pressure gas enters in pressure reducing valve, is depressurized, and the second shut-off valve is also in closed state at this time, gas into
Entering middle pressure sensor, middle pressure sensor detects middle pressure value, and in normal state, safety valve is in closed state always, if
Defective valve is depressurized, hypertonia will make safety valve open pressure release, guarantee detection system safety；Breathing regulator is loaded onto, at this time
The second shut-off valve is opened, the input pressure of breathing regulator is controlled by the nut on turn pressure reducing valve, opens artificial lung driving
Breathing regulator can detect respiratory resistance by low pressure sensor, control solenoid directional control valve, and gas enters mass sensitivity
Device obtains flow value.
Detector is divided into high-pressure system, medium voltage network, low-pressure system, and high-pressure system tests the parameter of cylinder package, middle pressure
The parameter of system testing pressure reducing valve, low-pressure system test the parameter of breathing regulator.
The infall of high-pressure system is connected to high pressure sensor and normally closed solenoid valve, and high pressure sensor is for testing gas
The pressure of bottle component, the pressure of venting pipeline after solenoid valve is used to complete to detect, to remove each component.
The infall of medium voltage network is connected to middle pressure sensor and safety valve, and middle pressure sensor is for detecting pressure reducing valve
Pressure, safety valve are to protect entire pipeline when depressurizing defective valve in order to prevent.
The switching for making pipeline at low-pressure system of solenoid directional control valve, on artificial lung pipeline, low pressure sensor is for testing
The respiratory resistance of breathing regulator, in flowmeter pipeline, flowmeter is used to test the rate of discharge of breathing regulator.
It is required according to respirator using acceptance specification, detector reply storage pressure, pressure reducing valve pressure, breathing regulator are exhaled
Suction drag, breathing regulator cracking pressure, breathing regulator flow, whole airtightness are detected, and parameter is as follows:
1. storage pressure >=18MPa；
2. pressure reducing valve pressure is between 0.54~0.64MPa；
3. breathing regulator respiratory resistance≤490Pa；
4. breathing regulator rate of discharge >=120L/min；
5. pressure duct pressure drop is no more than 2MPa when whole airtightness detects.
Detector cabinet is for installing detector main parts size, and cabinet is made of 45 steel, outer surface plastic-spraying, the Beauty
It sees, two sides are equipped with handle, and light weight is moved easily.
Signal conversion module receives the data that each sensor passes are come, and will be sent at computer after data conversion
Reason.
According to the selection specification of sensor, the 70% of sensor detection range is close with the maximum value of normal detection data.
According to sensor model number, having finally chosen range is 0~30MPa, the sensor of 0~1MPa, 0~1000Pa.
Pressure release, guard block and pipeline are carried out when depressurizing defective valve, select 1~1.3MPa of opening pressure of safety valve.
To rate of discharge, according to detection, generally 150L/min when maximum is answered according to the type selecting mode of the above sensor
Select the flow sensor of 0~200L/min.
In the selection of solenoid directional control valve, because to detect the respiratory resistance and rate of discharge of breathing regulator, according to
Actual tests and empirical data have selected the electromagnetism of big orifice DN20 in order not to have an impact to respiratory resistance and rate of discharge
Reversal valve；Because the maximum pressure of pressure duct is that 20MPa has for safety selected the electromagnetism that can be closed under 30MPa
Valve.
In the determination of air-tightness parameter, because the structure of air respiratorresuscitator is similar, air respiratorresuscitator is had references to
Air-leakage test standard is measured through test, is determined under detecting state, and pressure duct pressure decline within 60 second time is no more than
2 megapascal are considered as qualification.
Each unit under test of respirator is connected on simulation and uses system by the present invention according to the working principle of rescue breathing gear
Sensor, electric-controlled parts etc. are arranged in middle carry out on-line checking on each node, carry out detection behaviour by computer program control
Work and data management.The whole of respirator is able to detect with pressure sensor, flow sensor by computer controlled respirator
Machine air-tightness, the opening and closing of the outlet pressure of pressure reducing valve and breathing regulator, respiratory resistance, rate of discharge, and pass through special-purpose software
Detection data is recorded and is analyzed, there is easy to operate, compact layout, compact, have higher intensity and relatively light
Weight, can be transported with tactical vehicle, store the advantages that facilitating, solve that factory testing equipment is heavy, complicated, and user is without equipment
The problem of can examining.
The present invention also provides a kind of test methods of respirator detector, include the following steps:
Step 1: rescue breathing gear being split into cylinder package, pressure reducing valve, breathing regulator three parts, by stop valve for cylinder
It is connect with high voltage debugging pipe (twining the tubule of spring outside)；Pressure reducing valve input end is mounted on detector panel, decompression valve outlet with
Low pressure gas duct (sebific duct, two sides are all ball joints) is connected；Breathing regulator interface is connected with breathing regulator, mouth of being difficult to articulate
It is connect by bellows with the breathing pipeline interface on detector, principle is as shown in Figure 3.
Step 2: powering on, by USB connecting line insertion computer, (electrical power has electric current sound at this time, is positive and often occurs
As), rescue breathing gear detection system is opened on computers.
Step 3: carrying out whole airtightness detection, computer automatically controls solenoid directional control valve by breathing regulator and artificial lung phase
Logical, artificial lung starting, respirator is started to work, and after the time for reaching setting, computer controls artificial lung and closes, at this time must be in 5S
Interior closing stop valve for cylinder, software start to detect whole airtightness, if after pressure maintaining timing 60S, pressure duct pressure drop (i.e. initial pressure
Power subtracts termination pressure) be no more than 2MPa, then whole airtightness is qualified.
Step 4: opening stop valve for cylinder and the first shut-off valve, close the second shut-off valve, to be measured exhale is detected by sensor
Pressure p at haustorium pressure reducing valvev；
As 0.54≤pvWhen≤0.64, the status safety of compression release valve of respirator to be measured；
Work as pv< 0.54 or pvWhen > 0.64, the nut of compression release valve of respirator to be measured is adjusted, so that
0.54≤pv≤0.64；
Step 5: continuing that stop valve for cylinder and the first shut-off valve is kept to open, open the second shut-off valve, examined by sensor
Survey the pressure at compression release valve of respirator to be measured, the rate of discharge of respiratory resistance, inspiratory resistance and respirator adjuster to be measured, really
The safety coefficient of fixed respirator adjuster to be measured:
Wherein, ξ is the safety coefficient of respirator adjuster to be measured, and ψ is correction coefficient, p1For expiratory resistance, p2For air-breathing resistance
Power, pvFor the pressure at compression release valve of respirator to be measured, Q is the rate of discharge of respirator adjuster to be measured；
As ξ≤0.85, the status safety of respirator adjuster to be measured；
As ξ > 0.85, the state of respirator adjuster to be measured is dangerous.
Step 6: stop valve for cylinder is closed, solenoid valve pressure release is controlled, due to having deflation sound especially big when solenoid valve pressure release,
So being added to muffler at solenoid valve, the sound of deflation is effectively reduced.
The present invention has designed and developed a kind of detection method of respirator detector, can disposable property to measure complete machine airtight
Property, the respiratory resistance of the outlet pressure of compression release valve of respirator, breathing regulator and flow detection, and determine compression release valve of respirator and
The safety of breathing regulator.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of respirator detector characterized by comprising
Respirator gas cylinder to be measured；And
High pressure sensor, one end are connect with the respirator gas cylinder to be measured, and the other end is connect with signal receiving end；
First shut-off valve, one end are connect with the respirator gas cylinder to be measured；
Compression release valve of respirator to be measured is connect with first shut-off valve；
Middle pressure sensor, one end are connect with the compression release valve of respirator to be measured, and the other end is connect with the signal receiving end；
Wherein, the high pressure sensor is in parallel with first shut-off valve, compression release valve of respirator to be measured and middle pressure sensor；
Second shut-off valve is connect with the compression release valve of respirator to be measured；
Respirator adjuster to be measured is connect with second shut-off valve；
Artificial lung is connect with the respirator adjuster to be measured；
Low pressure sensor, one end are connect with the artificial lung, and the other end is connect with the signal receiving end；
Wherein, medium pressure sensor and second shut-off valve, respirator adjuster, artificial lung and low pressure sensor to be measured be simultaneously
Connection.
2. respirator detector as described in claim 1, which is characterized in that further include:
Triple valve comprising arrival end, first exit end, second outlet end and third outlet end；
Wherein, the arrival end of the triple valve is connect with the compression release valve of respirator to be measured, and first exit end and medium pressure pass
Sensor connection, second outlet end is connect with second shut-off valve；
Safety valve is connect with the third outlet end of the triple valve.
3. respirator detector as claimed in claim 1 or 2, which is characterized in that further include:
Mass sensor, one end are connect with the respirator adjuster to be measured, and the other end is connect with the signal receiving end,
Wherein, the mass sensor is in parallel with the artificial lung and low pressure sensor；
The exit of the respirator gas cylinder to be measured is arranged in stop valve for cylinder.
4. respirator detector as claimed in claim 3, which is characterized in that further include:
The junction of the respirator gas cylinder and high pressure sensor and the first shut-off valve to be measured is arranged in solenoid valve；
The junction of the respirator adjuster and the artificial lung and mass sensor to be measured is arranged in solenoid directional control valve.
5. respirator detector as claimed in claim 4, which is characterized in that the signal receiving end includes:
Signal conversion module is connect with the high pressure sensor, middle pressure sensor, low pressure sensor and mass sensor, is used
In the detection data for receiving the conversion high pressure sensor, middle pressure sensor, low pressure sensor and mass sensor；
Computer is connect with the signal conversion module.
6. respirator detector as claimed in claim 5, which is characterized in that the artificial lung includes:
Servo motor；And
Crank connecting, one end are connect with the output end bias of the servo motor, and the other end is set in connecting rod, and
It can be axially moved along the connecting rod；
Attachment base is fixedly connected with the connecting rod；
Piston, one end are fixedly connected with the attachment base,
Cylinder barrel, the piston other end is arranged in the cylinder barrel, and can be axially moved along the cylinder barrel.
7. a kind of detection method of respirator detector, which comprises the steps of:
Step 1: connecting component to be detected, open stop valve for cylinder and the first shut-off valve, close the second shut-off valve, pass through sensor
Detect the pressure p at compression release valve of respirator to be measuredv；
As 0.54≤pvWhen≤0.64, the status safety of compression release valve of respirator to be measured；
Work as pv< 0.54 or pvWhen > 0.64, the nut of compression release valve of respirator to be measured is adjusted, so that 0.54≤pv≤0.64；
Step 2: continue that stop valve for cylinder and the first shut-off valve is kept to open, open the second shut-off valve, by sensor detection to
Survey compression release valve of respirator at pressure, the rate of discharge of respiratory resistance, inspiratory resistance and respirator adjuster to be measured, determine to
Survey the safety coefficient of respirator adjuster:
Wherein, ξ is the safety coefficient of respirator adjuster to be measured, and ψ is correction coefficient, p1For expiratory resistance, p2For inspiratory resistance,
pvFor the pressure at compression release valve of respirator to be measured, Q is the rate of discharge of respirator adjuster to be measured；
As ξ≤0.85, the status safety of respirator adjuster to be measured；
As ξ > 0.85, the state of respirator adjuster to be measured is dangerous.
8. the detection method of respirator detector as claimed in claim 7, which is characterized in that further include:
The first shut-off valve and the second shut-off valve are closed, the pressure of respirator gas cylinder to be measured is detected by sensor, works as storage pressure
It when less than 18MPa, is inflated into respirator gas cylinder to be measured, so that storage pressure is more than or equal to 18MPa.
9. the detection method of respirator detector as claimed in claim 8, which is characterized in that before detection, airtight to complete machine
Property detected, when the pressure drop in pipeline be less than or equal to 2MPa/min when, whole airtightness is good.
10. the detection method of respirator detector as claimed in claim 9, which is characterized in that when compression release valve of respirator to be measured
When failure, start safety valve, and the cracking pressure of the safety valve is 1~1.3MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646148A (en) * | 2019-10-10 | 2020-01-03 | 澎浩船舶技术服务(上海)有限公司 | Respirator check out test set and respirator detecting system |
| CN113012545A (en) * | 2021-02-05 | 2021-06-22 | 西安交通大学 | Device for simulating human body breathing flow |
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| CN106706354A (en) * | 2016-12-29 | 2017-05-24 | 南京舒普思达医疗设备有限公司 | Device for testing safety and performance of inhalational anaesthesia systems |
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2018
- 2018-12-14 CN CN201811529081.9A patent/CN109470427B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706354A (en) * | 2016-12-29 | 2017-05-24 | 南京舒普思达医疗设备有限公司 | Device for testing safety and performance of inhalational anaesthesia systems |
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| 井婷婷: "水下呼吸器使用性能检测系统的设计与实现", 《矿业安全与环保》 * |
| 张伟豪 等: "水下蛙人被动探测技术实验研究", 《声学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646148A (en) * | 2019-10-10 | 2020-01-03 | 澎浩船舶技术服务(上海)有限公司 | Respirator check out test set and respirator detecting system |
| CN113012545A (en) * | 2021-02-05 | 2021-06-22 | 西安交通大学 | Device for simulating human body breathing flow |
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| Publication number | Publication date |
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| CN109470427B (en) | 2020-07-31 |
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