CN107632630A - Monitoring poisonous gas processing system in a kind of laboratory - Google Patents
Monitoring poisonous gas processing system in a kind of laboratory Download PDFInfo
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- CN107632630A CN107632630A CN201710697731.XA CN201710697731A CN107632630A CN 107632630 A CN107632630 A CN 107632630A CN 201710697731 A CN201710697731 A CN 201710697731A CN 107632630 A CN107632630 A CN 107632630A
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Abstract
The present invention relates to monitoring poisonous gas processing system in a kind of laboratory, including controller, CO gas sensor, oxides of nitrogen gas sensors, warning device and display device；The CO gas and the concentration of oxides of nitrogen gas that the CO gas sensor and oxides of nitrogen gas sensors are used in test experience room；The display device is used for the concentration for showing CO gas and oxides of nitrogen gas；The warning device is used to sound the alarm；The controller is by the detected value of the CO gas sensor and oxides of nitrogen gas sensors compared with the first preset range, and when detected value is in the first preset range, controller sends control signal triggering warning device and alarmed；When detected value is in the second preset range, controller sends control signal triggering induced draft fans so that induced draft fans are run the discharging air outward in laboratory.The present invention can carry out complete detection and be effectively treated to toxic gas.
Description
Technical field
The present invention relates to laboratory monitoring technology field, more particularly to monitoring poisonous gas processing system in a kind of laboratory
System.
Background technology
Motor vehicle emission laboratory can assemble the various tail gas discharged in experimentation, including CO, NOx, HC (nytron
Thing), particulate matter etc., wherein both toxic gas accountings of CO, NOx are larger, when both toxic gases reach finite concentration,
Infringement will be produced to the health of experimenter.Existing laboratory generally only configures mouth mask to experimenter, with protection
Harm of the toxic gas to experimenter, but after the concentration over-standard of toxic gas, even if experimenter, with mouth mask, it is anti-
Shield effect is also bad, and the health of experimenter can suffer damage subtlely.
Common supervising device has in the market：Flammable gas alarm, carbon monoxide alarm etc., but these are filled
Put that function is single, what is had can only detect fuel gas, and what is had can only detect carbon monoxide, and what is had can only send alarm.Therefore it is existing
Some supervising devices can not meet the needs of motor vehicle emission laboratory.
The content of the invention
The technical problems to be solved by the invention are to provide monitoring poisonous gas processing system, Neng Goujian in a kind of laboratory
A variety of toxic gases are surveyed, and can suitably be operated according to concentration of toxic gases.
The technical solution adopted for the present invention to solve the technical problems is：There is provided in a kind of laboratory at monitoring poisonous gas
Reason system, including controller, CO gas sensor, oxides of nitrogen gas sensors, warning device and display device, institute
State controller and connect CO gas sensor, oxides of nitrogen gas sensors, warning device and display device respectively；It is described
CO gas sensor and oxides of nitrogen gas sensors are located in laboratory, the oxygen being respectively used in test experience room
Change the concentration of carbon gas and oxides of nitrogen gas；The display device is used to show the CO gas and nitrogen oxygen in laboratory
The concentration of compound gas；The warning device is used to sound the alarm；The controller is by the CO gas sensor
Detected value with oxides of nitrogen gas sensors controls compared with the first preset range when detected value is in the first preset range
Device sends control signal triggering warning device and alarmed；When detected value is in the second preset range, controller sends control
Signal triggers induced draft fans so that induced draft fans are run the discharging air outward in laboratory.
The controller uses STM32F103 series monolithics.
The CO gas sensor is sensed using Electrochemical carbon monoxide module ZE07-CO CO gas
Device.
The oxides of nitrogen gas sensors uses 5WK966141 oxides of nitrogen gas sensors.
The display device uses group of four figures tube display.
The warning device is buzzer；The detection of the CO gas sensor and oxides of nitrogen gas sensors
When value is in different preset ranges, the alert audio that the buzzer is sent is different.
Beneficial effect
As a result of above-mentioned technical scheme, the present invention compared with prior art, has the following advantages that and actively imitated
Fruit：The present invention carries out complete detection by CO gas sensor and oxides of nitrogen gas sensors to toxic gas, and
Alert process is carried out using different modes according to the concentration of the toxic gas detected, and when concentration reaches relatively hazardous value
The induced draft fans for automatically opening up laboratory carry out exhausting processing so that carbon monoxide and nitrogen oxides in motor vehicle emission laboratory
Concentration control it is rational at one within the scope of, it is ensured that the health of experimenter.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiments of the present invention are related to monitoring poisonous gas processing system in a kind of laboratory, as shown in figure 1, including control
Device, CO gas sensor, oxides of nitrogen gas sensors, warning device and display device processed, the controller difference
Connect CO gas sensor, oxides of nitrogen gas sensors, warning device and display device；The CO gas
Sensor and oxides of nitrogen gas sensors are located in laboratory, the CO gas and nitrogen being respectively used in test experience room
The concentration of oxide gas；The display device is used to show the dense of the CO gas and oxides of nitrogen gas in laboratory
Degree；The warning device is used to sound the alarm；The controller is by the CO gas sensor and nitrogen oxides gas
The detected value of body sensor is compared with the first preset range, and when detected value is in the first preset range, controller sends control letter
Number triggering warning device is alarmed；When detected value is in the second preset range, controller sends control signal triggering exhausting
Blower fan so that induced draft fans are run the discharging air outward in laboratory.
The controller uses STM32F103 series monolithics, and the controller makes the core of whole system, and it realizes instruction
Receiving, collection, analog-to-digital conversion and the judgement of gas signal, current system running status and monitoring information are shown in display device
On, control cut-offfing for warning device and induced draft fans machine.STM32F103 series belongs to 32 ARM of middle-end in present embodiment
Microcontroller, the family chip are that STMicw Electronics (ST) company produces, and its kernel is Cortex-M3., integrated chip timing
The multiple functions such as device, CAN, ADC, USART, SPI, I2C, USB, possess that abundant to be configured flexibly mode and low-power consumption etc. excellent
Point, it was widely used among industry measurement and control system in recent years.The display device uses group of four figures tube display, for showing
Show the detected value that CO gas sensor and oxides of nitrogen gas sensors detect.
The warning device is buzzer；The detection of the CO gas sensor and oxides of nitrogen gas sensors
When value is in different preset ranges, the alert audio that the buzzer is sent is different, and experiment is reminded by different audios
Situation in the current laboratory of personnel so that experimenter does not have to divert one's attention to see display device in experiment, so that it is guaranteed that experiment
Safety.
The CO gas sensor is a universal, miniaturization using ZE07-CO CO gas modules
Module, CO present in air is detected using electrochemical principle, it has good selectivity, stability.Mainly should
For places such as Detection of Air Quality equipment, ventilation air interchange system, intelligent home devices., investigative range 0-500ppm, differentiate
Rate is 0.1ppm, has high sensitivity, excellent in stability, high-resolution, the antijamming capability that service life is long, outstanding, brilliance
Linear convergent rate the advantages that.The oxides of nitrogen gas sensors uses 5WK966141 oxides of nitrogen gas sensors, Germany
Continental groups research and develop, and produce and manufacture, measurement range in German native country：0-1500ppm, using import electrochemistry/
Infrared sensor and microcontroller technology, have a fast response time, and measurement accuracy is high, stability and it is reproducible the advantages that.
The present invention in use, CO gas sensor and oxides of nitrogen gas sensors to the oxidation in laboratory
The concentration of carbon gas and oxides of nitrogen gas is detected in real time, and the result detected is sent into controller, and controller will
As a result notice display device is shown, and will also be shown that result compared with the first preset range, when the result of detection
When in the first preset range, controller sends control signal triggering warning device and alarmed.When the result of detection is second
When in preset range, controller sends control signal triggering induced draft fans so that induced draft fans are run the air in laboratory
Outwards discharge.Such as first preset range be 50~200ppm, the second preset range is 200ppm~500ppm, when detected value is
During 80ppm, now detected value falls into the first preset range, and warning device sends sound and alarmed；When detected value is 220ppm
When, now detected value falls into the second preset range, and induced draft fans are opened under the control of the controller, by the air in laboratory to
Outer discharge.It is noted that what the warning device of the present invention can be sent when detected value is in different preset ranges
Alert audio is different, that is to say, that when detected value is 80ppm, now detected value falls into the first preset range, warning device hair
It is more gentle that the sound gone out can be that one is long and the other is short；When detected value is 220ppm, now detected value falls into the second preset range,
The sound that warning device is sent can be that a two short length are more very brief urgent.
It is seen that the present invention is entered by CO gas sensor and oxides of nitrogen gas sensors to toxic gas
Row complete detection, and alert process is carried out using different modes according to the concentration of the toxic gas detected, and work as concentration
The induced draft fans that laboratory is automatically opened up when reaching relatively hazardous value carry out exhausting processing so that the oxygen in motor vehicle emission laboratory
The concentration for changing carbon and nitrogen oxides is controlled within the scope of one rational, it is ensured that the health of experimenter.
Claims (6)
1. monitoring poisonous gas processing system in a kind of laboratory, including controller, CO gas sensor, nitrogen oxides
Gas sensor, warning device and display device, it is characterised in that the controller connects CO gas sensing respectively
Device, oxides of nitrogen gas sensors, warning device and display device；The CO gas sensor and oxides of nitrogen gas
Sensor is located in laboratory, the CO gas and the concentration of oxides of nitrogen gas being respectively used in test experience room；Institute
State the concentration that display device is used to show CO gas and oxides of nitrogen gas in laboratory；The warning device is used for
Sound the alarm；The controller is by the CO gas sensor and the detected value of oxides of nitrogen gas sensors and
One preset range compares, and when detected value is in the first preset range, controller sends control signal triggering warning device and reported
It is alert；When detected value is in the second preset range, controller sends control signal triggering induced draft fans so that induced draft fans are run
By the discharging air outward in laboratory.
2. monitoring poisonous gas processing system in laboratory according to claim 1, it is characterised in that the controller is adopted
With STM32F103 series monolithics.
3. monitoring poisonous gas processing system in laboratory according to claim 1, it is characterised in that the carbon monoxide
Gas sensor uses Electrochemical carbon monoxide module ZE07-CO CO gas sensors.
4. monitoring poisonous gas processing system in laboratory according to claim 1, it is characterised in that the nitrogen oxides
Gas sensor uses 5WK966141 oxides of nitrogen gas sensors.
5. monitoring poisonous gas processing system in laboratory according to claim 1, it is characterised in that the display device
Using group of four figures tube display.
6. monitoring poisonous gas processing system in laboratory according to claim 1, it is characterised in that the warning device
For buzzer；The detected value of the CO gas sensor and oxides of nitrogen gas sensors is in different preset ranges
When, the alert audio that the buzzer is sent is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697731.XA CN107632630A (en) | 2017-08-15 | 2017-08-15 | Monitoring poisonous gas processing system in a kind of laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697731.XA CN107632630A (en) | 2017-08-15 | 2017-08-15 | Monitoring poisonous gas processing system in a kind of laboratory |
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| Publication Number | Publication Date |
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| CN107632630A true CN107632630A (en) | 2018-01-26 |
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| CN201710697731.XA Pending CN107632630A (en) | 2017-08-15 | 2017-08-15 | Monitoring poisonous gas processing system in a kind of laboratory |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919733A (en) * | 2018-06-29 | 2018-11-30 | 重庆市渝北区发明创新服务协会 | A kind of high school chemical experiment security protection system and method |
| CN110057973A (en) * | 2019-04-01 | 2019-07-26 | 浙江工商大学 | A kind of use for laboratory gas safety pre-warning system and method |
| CN111291980A (en) * | 2020-01-20 | 2020-06-16 | 上海锦同智能科技有限公司 | Laboratory integrated management system based on Internet of things |
| CN111352378A (en) * | 2018-12-20 | 2020-06-30 | 广州德标智能化工程有限公司 | Dangerous environment monitoring and alarming linkage device and linkage method |
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| CN206055873U (en) * | 2016-08-31 | 2017-03-29 | 天宫重庆科技股份有限公司 | A kind of indoor air chemical pollution and air handling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203070079U (en) * | 2013-02-06 | 2013-07-17 | 西安邮电大学 | Underground parking lot environment monitoring system |
| CN104566759A (en) * | 2015-01-28 | 2015-04-29 | 孙立满 | Intelligent ventilation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919733A (en) * | 2018-06-29 | 2018-11-30 | 重庆市渝北区发明创新服务协会 | A kind of high school chemical experiment security protection system and method |
| CN111352378A (en) * | 2018-12-20 | 2020-06-30 | 广州德标智能化工程有限公司 | Dangerous environment monitoring and alarming linkage device and linkage method |
| CN110057973A (en) * | 2019-04-01 | 2019-07-26 | 浙江工商大学 | A kind of use for laboratory gas safety pre-warning system and method |
| CN111291980A (en) * | 2020-01-20 | 2020-06-16 | 上海锦同智能科技有限公司 | Laboratory integrated management system based on Internet of things |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 315226 727 Binhai Second Road, Hangzhou Bay New Area, Ningbo, Zhejiang Province Applicant after: China Auto Research Automobile Inspection Center (Ningbo) Co., Ltd. Address before: Room 2-017, Building 3, Business Street, Hangzhou Bay New District, Ningbo City, Zhejiang Province Applicant before: Ka Dake motor vehicle quality inspection center (Ningbo) company limited |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180126 |