CN105974053A - Armoured vehicle cabin harmful gas simulation experiment system - Google Patents
Armoured vehicle cabin harmful gas simulation experiment system Download PDFInfo
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- CN105974053A CN105974053A CN201510724354.5A CN201510724354A CN105974053A CN 105974053 A CN105974053 A CN 105974053A CN 201510724354 A CN201510724354 A CN 201510724354A CN 105974053 A CN105974053 A CN 105974053A
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Abstract
The invention provides an armoured vehicle cabin harmful gas simulation experiment system, a computer is used for calculating flow values of various required gas composition according to engine parameter, calibre gun and bullet types, then the flow values are sent to a special gas cabinet, a gas cylinder frame and a proportion cabinet, CO and NO2 are stored in the same special gas cabinet, and SO2, NH3 and H2S are respectively stored in the independent special gas cabinet, the number of the gas cylinder frames is two, and one of them is used for storing CO2 and O2, and another is used for storing N2; various gases in the special gas cabinet and the gas cylinder frame are mixed according to the flow values set by the computer to form the engine exhaust gas or gun shooting exhaust gas, and the engine exhaust gas or gun shooting exhaust gas can be conveyed to an experiment chamber. According to the invention, relevant simulation experiment is developed at comparatively stable boundary condition, and the experiment system provides basic condition for control effect of air environment in the future equipment cabin.
Description
Technical field
The present invention relates to the experimental system for simulating of a kind of armored vehicle cabin Common detrimental gas componant, be particularly well-suited to have
The evil gas test and evaluation to operator's operation work efficiency influence degree, and in cabin, cleaning harmful gas technology is ground
Study carefully.
Background technology
In order to study the working environment influence degree to human body, current domestic air mail space flight, automobile making, architectural design,
The industries such as environmental conservation establish multiple environmental simulation experiment condition, are used for carrying out correlational study.But up to now, build
Vertical environmental simulation experiment condition is mainly high temperature/Cryogenic air environmental simulation, the simulation of low pressure anaerobic environment, humidity ring
Border is simulated, is shined upon simulation etc., is mainly used in astronaut training, army or occupation mountaineering party's plateau adaptability instruction
The aspect researchs such as white silk and the thermal comfort control of automobile cabin, and affect operator about harmful gas in working environment
The simulation study condition of Common detrimental gases affect personnel's fight capability in performance capacity, especially armored equipment cabin,
There is not yet relevant report.
Armored vehicle cabin spaces is narrow and small, and seal is strong, during instructing, and artillery shooting tail gas and motor exhaust
Often can accumulate in cabin, affect the fight capability of operator largely, time serious, even threaten personnel
Life security.
Common are harmful gas in armored equipment cabin and mainly include CO, NO2、SO2、NH3And H2S etc., mainly
Motor exhaust seepage in cabin in tail gas disperse when deriving from artillery shooting and vehicle travel process.Forced ventilation
Although harmful gas concentration in cabin can be reduced to a certain extent, but under some operating condition, harmful gas concentration is short
Shi Chaobiao phenomenon occurs the most often.Research shows, when in blood, the concentration of COHb is more than 5%, and the police of occupant
Ring power is decreased obviously, and has both lost fighting capacity during more than 20%.NH3、NO2、SO2And H2S to personnel's eye, nasal mucosa,
Larynx, tracheal bronchus etc. have intense stimulus effect, can cause dizziness, cardiopalmus, dyspnea, the symptom such as be slow in action,
Work as NH3Occupant can be caused when concentration reaches 50～100mg/L can not effectively to operate weapon, therefore carry out armored equipment
Cabin composition of gases within controls technical research to occupant's operation work efficiency influence degree research and composition of air and has important meaning
Justice.
Limited by Domestic Scientific Research condition at present, cabin harmful gas is affected research and the gas purification of personnel's operation work efficiency
Technical research is scarcely out of swaddling-clothes, and generally carries out real steering vectors at the first sample car developed and positive sample car stage, comments with this
The impact on personnel's operation work efficiency of the valency harmful gas, its design guidance effect is the most delayed；And cabin indoor harmful gas is clean
Change technical research then due to by environmental condition during real train test is uncontrollable and the factor such as experimentation cost is affected, it is difficult to
Gaseous environment is controlled effect and carries out accurate evaluation.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of armored equipment cabin gaseous environment experimental system for simulating,
Setting and associated analog experiment under relatively stable boundary condition, can be carried out, for improving future equipment cabin air environment
Control effect provide basic condition.
The technical solution adopted for the present invention to solve the technical problems is: include special gas storage tank, gas cylinder carriage, proportioning bin, reality
Hatch checking and control computer, described control computer, according to engine parameter, cannon bore and bullet kind, calculates institute
Need the flow value of various gas componants, then flow value is sent to special gas storage tank, gas cylinder carriage and proportioning bin；Described spy
Gas holder has four, CO and NO2Deposit and be in same special gas storage tank, SO2、NH3And H2S leaves one respectively in
In individual independent special gas storage tank；Described gas cylinder carriage has two, and one of them deposits CO2And O2, another is deposited
N2；After various gases in special gas storage tank and gas cylinder carriage are mixed by described proportioning bin by the flow value controlling computer settings
Form motor exhaust or artillery shooting tail gas, and deliver into Laboratory Module.
Described special gas storage tank is made up of electric cabinet and gas holder, installs PLC, control circuit, touch in electric cabinet
Screen and alarm lamp and buzzer；Gas holder is provided with gas cylinder, operated pneumatic valve, supply air line and gas leakage prevention
Monitoring sensor；Watch window is had on special gas storage tank.
Described proportioning bin is made up of electric cabinet and cabinet, installs PLC, control circuit, touch in electric cabinet
Screen, gas leakage prevention alarm lamp and buzzer；Installation quality flow controller, pneumatic operated valve, anti-gas in cabinet
Leak detector.
The PLC of described proportioning bin is after receiving the various gas flow values that control computer sends, by flow
Value is sent to mass flow controller；When carrying out motor exhaust simulation, open CO, CO2、NO2、SO2Four kinds
The mass flow controller of gas, by regulation flow release gas, is conveyed into reality after mixing in pipeline in a continuous manner
Hatch checking；When carrying out the simulation of artillery shooting tail gas, open CO, NH3、CO2、NO2、SO2And H2The matter of S gas
Amount flow controller, forms mixed gas, after reaching to set flow, closes mass flow controller, by N2Will mixing
Gas pushes into Laboratory Module；While mass flow controller carries out distribution on request, upload distribution flow in real time, make
The feedback signal controlled for gas flow.
The top of described special gas storage tank and distributing cabinet connects bus-bar, is in negative pressure shape in making cabinet by blower fan swabbing action
State.
The invention has the beneficial effects as follows:
The present invention takes advantage of the prominent compartment environment problem that load person faces, design first to establish from armored vehicle
It is specifically designed to the experimental system of simulation cabin harmful gas, fills up China in vehicle cabin air ambient study condition side
The blank in face.
This system design functions is unique, can use continuous distribution mode simulated engine tail gas seepage in cabin, also
Can use the tail gas disperse after pulse mode simulation Canon launching, the gaseous species of simulation covers in armored vehicle cabin
Most commonly seen CO, NO2、SO2、NH3、CO2And H2S, and automatically can press by engine speed or transmitting bullet kind
Ratio controls the burst size of every kind of gas componant, has simulated to greatest extent in terms of gas componant, delivery mode two
Evil gas diffusion in cabin, provides close for carrying out dependence test, evaluation and cleaning harmful gas technical research
In real cabin air environment.
System uses full automation to control, and only need to set vehicle combat duty on the control interface of main control computer,
Computer will automatically extract database data, is passed by Ethernet, PLC and monitoring after generating distribution instruction
The whole-process automatic control of sensor completion system, it is not necessary to personnel manually complete the operation such as Open valve, regulation flow.
For ensureing the personal security in experimentation, system is provided with maltilevel security guarantee, except in special gas storage tank, proportioning
Cashier's office in a shop install outside bus-bar air draft by force, in special gas storage tank, proportioning bin, be also mounted with gas leakage monitoring sensor, and
The monitoring numerical value of sensor is monitored in gathering cabin,
Concentration beyond safety limit time and alarm, simultaneity factor is provided with scram button, in case of emergency, can
Stop distribution at once.
In sum, this system design science is reasonable, and technological means is advanced, application specialty, first as China
Being exclusively used in the experimental system for simulating of armored vehicle cabin gas componant environment, this system is for carrying out equipment cabin air environment
Test, evaluate and have laid a good foundation with the basic research purifying control technology.
Accompanying drawing explanation
Fig. 1 is air distribution system workflow schematic diagram；
Fig. 2 is that CO and NO2 special gas storage tank gas circuit moves towards figure；
Fig. 3 is that CO2 and O2 special gas storage tank gas circuit moves towards figure；
Fig. 4 is that in proportioning bin, gas circuit moves towards schematic diagram；
Fig. 5 is that air distribution system pipeline connects and moves towards schematic diagram；
Fig. 6 is exhaust system schematic diagram.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings, and the present invention includes but are not limited to following embodiment.
The armored vehicle cabin harmful gas experimental system for simulating of the present invention is mainly used in simulating armored vehicle and was instructing
Cheng Zhong, the diffusion in cabin of artillery shooting tail gas and motor exhaust, carry out cabin harmful gas pair on this basis
The test and evaluation technical research of operator's operation work efficiency impact, and cleaning harmful gas technical research.
The present invention is made up of special gas storage tank, gas cylinder carriage, proportioning bin, pipeline, exhaust system and control computer, it is possible to press
Ratio is hybridly prepared into motor exhaust and Canon launching tail gas, and wherein the composition of simulated engine tail gas includes: CO,
NO2、SO2And CO2, use continuous distribution mode to discharge in cabin；The composition of simulation Canon launching tail gas includes
CO、NO2、SO2、NH3、CO2And H2S, uses pulse mode release.System also can simulate vehicle-mounted apparatus of oxygen supply
Oxygen supply ability.
When the present invention works, control computer, according to engine parameter, cannon bore and bullet kind, calls distribution data base
Associated gas concentration data, is calculated the flow of required various gas componants, is then sent by flow value by Ethernet
To the PLC in special gas storage tank, gas cylinder carriage and proportioning bin, PLC control mass flow controller, by calculating institute
The flow obtained carries out distribution.The mixed gas joined enters Laboratory Module by Pipeline transport.Working-flow schematic diagram
See Fig. 1.
Described special gas storage tank is CO, NO in air distribution system2、SO2、NH3、CO2And H2Five kinds of poisonous and harmfuls of S
Depositing of gas, and valve can be opened according to computer instruction and carry out gas conveying, mainly it is made up of electric cabinet and gas holder.
PLC, control circuit, touch screen and alarm lamp and buzzer are installed in electric cabinet；Gas holder is installed
There are gas cylinder, operated pneumatic valve, supply air line and gas leakage prevention monitoring sensor.Cabinet frontal design has watch window,
Top couples exhaust system by bus-bar, can keep in cabinet in negative pressure state, prevent under the swabbing action of exhaust fan
Reveal gas harm operator.
Native system designs CO and NO2Gas is installed in same special gas storage tank, due to SO2、H2S and NH3Yi
Pipeline mutually occurs chemical reaction, is therefore separately mounted in respective special gas storage tank.CO and NO2The gas circuit of special gas storage tank
Principle is shown in Fig. 2.
In the present invention, design uses two gas cylinder carriages, and one of them gas cylinder carriage installs CO2And O2Two kinds of gases, are used for
CO in tail gas is provided2, O2Bottle is for simulating the O of vehicle-mounted apparatus of oxygen supply2Conveying.Another gas cylinder carriage installs N2,
As carry in cabin mixed gas carrier gas and experiment after system pipeline purging clean.
CO2 and O2The gas circuit principle of gas cylinder carriage is shown in Fig. 3.
Described proportioning bin, for controlling the flow of each road gas, forms engines tail after being mixed in proportion by various gases
Gas or artillery shooting tail gas, and deliver into Laboratory Module.Proportioning bin is mainly made up of electric cabinet and cabinet, in electric cabinet
PLC, control circuit, touch screen, gas leakage prevention alarm lamp and buzzer etc. are installed；Peace in cabinet
Packing quality flow controller, pneumatic operated valve, gas leakage prevention detector etc., bus-bar and exhaust system are passed through in cabinet top
Couple, in experimentation can keep cabinet, be in negative pressure state.
Proportioning bin PLC, further will stream after receiving the various gas flows instruction that control computer sends
Value is sent to motor exhaust module or the mass flow controller of artillery shooting tail gas module.Carry out motor exhaust
During simulation, open CO, CO of motor exhaust module2、NO2、SO2Four kinds of gas mass flow controllers, press
Regulation flow release gas, is conveyed into cabin after mixing in pipeline in a continuous manner；If carrying out artillery shooting tail gas simulation,
Then open CO, NH of artillery shooting tail gas module3、CO2、NO2、SO2And H2The mass flow of S gas controls
Device, after reaching regulation flow, cuts out mass flow controller, by the N of 99.99%2Mixed gas is pushed into cabin.
During distribution, while mass flow controller carries out distribution on request, upload distribution flow in real time, as gas
The feedback signal of flow-control.
The gas circuit of proportioning bin designs such as Fig. 4.
1/4 is used between special gas storage tank, gas cylinder carriage and proportioning bin " EP pipeline is attached, and uses pipe clamp at spacing intervals
Fix on the wall.Gas distribution pipeline is connected with cabinet and moves towards design sees Fig. 5.
For preventing because gas leakage causes equipment operator to be poisoned, the top of special gas storage tank and distributing cabinet connects and confluxes
Row, by equipment room outside blower fan swabbing action, be in negative pressure state in making cabinet, gas can be prevented effectively from and leak into and set
In standby.Due to the gas concentration relatively low (ppm level) of experiment, usage amount is less, meets the relevant environmental protection law of country
Directly the regulation of discharge, is therefore directly discharged into atmospheric environment.Fig. 6 is shown in by exhaust system schematic diagram.
Claims (5)
1. an armored vehicle cabin harmful gas experimental system for simulating, including special gas storage tank, gas cylinder carriage, proportioning bin, experiment
Cabin and control computer, it is characterised in that: described control computer is according to engine parameter, cannon bore and bullet
Kind, calculate the flow value of required various gas componants, then flow value is sent to special gas storage tank, gas cylinder carriage and joins
Compare cabinet；Described special gas storage tank has four, CO and NO2Deposit and be in same special gas storage tank, SO2、NH3
And H2S leaves in an independent special gas storage tank respectively；Described gas cylinder carriage has two, and one of them is deposited
CO2And O2, another deposits N2；Various gases in special gas storage tank and gas cylinder carriage are pressed and are controlled by described proportioning bin
Form motor exhaust or artillery shooting tail gas after the flow value mixing of computer settings, and deliver into Laboratory Module.
Armored vehicle cabin the most according to claim 1 harmful gas experimental system for simulating, it is characterised in that: described
Special gas storage tank be made up of electric cabinet and gas holder, install in electric cabinet PLC, control circuit, touch screen with
And alarm lamp and buzzer；Gas holder is provided with gas cylinder, operated pneumatic valve, supply air line and gas leakage prevention prison
Survey sensor；Watch window is had on special gas storage tank.
Armored vehicle cabin the most according to claim 1 harmful gas experimental system for simulating, it is characterised in that: described
Proportioning bin be made up of electric cabinet and cabinet, install in electric cabinet PLC, control circuit, touch screen,
Gas leakage prevention alarm lamp and buzzer；In cabinet, installation quality flow controller, pneumatic operated valve, anti-gas are let out
Leakage detector.
Armored vehicle cabin the most according to claim 1 harmful gas experimental system for simulating, it is characterised in that: described
Flow value, after receiving the various gas flow values that control computer sends, is sent out by the PLC of proportioning bin
Give mass flow controller；When carrying out motor exhaust simulation, open CO, CO2、NO2、SO2Four kinds of gas
The mass flow controller of body, by regulation flow release gas, is conveyed into reality after mixing in pipeline in a continuous manner
Hatch checking；When carrying out the simulation of artillery shooting tail gas, open CO, NH3、CO2、NO2、SO2And H2S gas
Mass flow controller, forms mixed gas, after reaching to set flow, closes mass flow controller, by N2
Mixed gas is pushed into Laboratory Module；While mass flow controller carries out distribution on request, upload distribution in real time
Flow, the feedback signal controlled as gas flow.
Armored vehicle cabin the most according to claim 1 harmful gas experimental system for simulating, it is characterised in that: described
The top of special gas storage tank and distributing cabinet connects bus-bar, is in negative pressure state in making cabinet by blower fan swabbing action.
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| CN201510724354.5A CN105974053A (en) | 2015-10-29 | 2015-10-29 | Armoured vehicle cabin harmful gas simulation experiment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724354.5A CN105974053A (en) | 2015-10-29 | 2015-10-29 | Armoured vehicle cabin harmful gas simulation experiment system |
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| CN105974053A true CN105974053A (en) | 2016-09-28 |
Family
ID=56988201
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403296A (en) * | 2020-11-20 | 2021-02-26 | 北京卫星环境工程研究所 | Gas distribution method and system for simulating surface atmospheric environment of golden star |
| CN113768657B (en) * | 2021-10-12 | 2024-05-10 | 兵器工业卫生研究所 | Exposure device for gas inhalation contamination experiment |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852227A (en) * | 1996-05-25 | 1998-12-22 | Pierburg Ag | Apparatus for measuring the composition of exhaust gases of internal combustion engines |
| CN2610335Y (en) * | 2002-12-30 | 2004-04-07 | 郭晓光 | High-precision distribution instrument special for air conditioned parameter test |
| CN201173920Y (en) * | 2008-03-12 | 2008-12-31 | 中国石油天然气股份有限公司 | Experimental device for simulating sulfur reclamation tail gas burning effect |
| CN201247239Y (en) * | 2008-07-15 | 2009-05-27 | 武汉金亚泰仪器设备有限公司 | Environmental simulation experimental apparatus |
| CN101980013A (en) * | 2010-10-14 | 2011-02-23 | 厦门大学 | System for detecting activity of adsorbent |
| CN102091544A (en) * | 2010-12-09 | 2011-06-15 | 中国人民解放军军事医学科学院 | Gas allocation device |
| CN102107150A (en) * | 2010-12-09 | 2011-06-29 | 中国人民解放军军事医学科学院 | Combined bin system used for environmental simulation |
| CN102289964A (en) * | 2011-09-08 | 2011-12-21 | 南京韩威南冷制冷集团有限公司 | Test platform for simulating environment of comprehensive protection test of underground rescue capsule |
| CN102565281A (en) * | 2010-12-17 | 2012-07-11 | 株式会社堀场Stec | Gas concentration controller system and method thereof |
| CN202460571U (en) * | 2012-01-17 | 2012-10-03 | 中国科学院上海应用物理研究所 | Automatic air distributing system |
| CN202478880U (en) * | 2012-03-09 | 2012-10-10 | 江苏海立普电力科技有限公司 | Dynamic gas distribution instrument |
| CN102749378A (en) * | 2012-07-10 | 2012-10-24 | 浙江省计量科学研究院 | Vehicle mass analysis system standard device for simulating exhaust emission |
| CN102759932A (en) * | 2012-07-05 | 2012-10-31 | 中国科学技术大学 | Control device and control method for plurality of paths of gas mass flow meters |
| CN102841613A (en) * | 2012-08-29 | 2012-12-26 | 兰州理工大学 | Gas concentration control system in gas distribution process |
| CN205103230U (en) * | 2015-10-29 | 2016-03-23 | 兵器工业卫生研究所 | Armoured vehicle cabin harmful gas simulation experiment system |
-
2015
- 2015-10-29 CN CN201510724354.5A patent/CN105974053A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852227A (en) * | 1996-05-25 | 1998-12-22 | Pierburg Ag | Apparatus for measuring the composition of exhaust gases of internal combustion engines |
| CN2610335Y (en) * | 2002-12-30 | 2004-04-07 | 郭晓光 | High-precision distribution instrument special for air conditioned parameter test |
| CN201173920Y (en) * | 2008-03-12 | 2008-12-31 | 中国石油天然气股份有限公司 | Experimental device for simulating sulfur reclamation tail gas burning effect |
| CN201247239Y (en) * | 2008-07-15 | 2009-05-27 | 武汉金亚泰仪器设备有限公司 | Environmental simulation experimental apparatus |
| CN101980013A (en) * | 2010-10-14 | 2011-02-23 | 厦门大学 | System for detecting activity of adsorbent |
| CN102107150A (en) * | 2010-12-09 | 2011-06-29 | 中国人民解放军军事医学科学院 | Combined bin system used for environmental simulation |
| CN102091544A (en) * | 2010-12-09 | 2011-06-15 | 中国人民解放军军事医学科学院 | Gas allocation device |
| CN102565281A (en) * | 2010-12-17 | 2012-07-11 | 株式会社堀场Stec | Gas concentration controller system and method thereof |
| CN102289964A (en) * | 2011-09-08 | 2011-12-21 | 南京韩威南冷制冷集团有限公司 | Test platform for simulating environment of comprehensive protection test of underground rescue capsule |
| CN202460571U (en) * | 2012-01-17 | 2012-10-03 | 中国科学院上海应用物理研究所 | Automatic air distributing system |
| CN202478880U (en) * | 2012-03-09 | 2012-10-10 | 江苏海立普电力科技有限公司 | Dynamic gas distribution instrument |
| CN102759932A (en) * | 2012-07-05 | 2012-10-31 | 中国科学技术大学 | Control device and control method for plurality of paths of gas mass flow meters |
| CN102749378A (en) * | 2012-07-10 | 2012-10-24 | 浙江省计量科学研究院 | Vehicle mass analysis system standard device for simulating exhaust emission |
| CN102841613A (en) * | 2012-08-29 | 2012-12-26 | 兰州理工大学 | Gas concentration control system in gas distribution process |
| CN205103230U (en) * | 2015-10-29 | 2016-03-23 | 兵器工业卫生研究所 | Armoured vehicle cabin harmful gas simulation experiment system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403296A (en) * | 2020-11-20 | 2021-02-26 | 北京卫星环境工程研究所 | Gas distribution method and system for simulating surface atmospheric environment of golden star |
| CN113768657B (en) * | 2021-10-12 | 2024-05-10 | 兵器工业卫生研究所 | Exposure device for gas inhalation contamination experiment |
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Application publication date: 20160928 |
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