CN110470802A - A kind of dam toxic and harmful gas monitoring and warning system and method - Google Patents
A kind of dam toxic and harmful gas monitoring and warning system and method Download PDFInfo
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- CN110470802A CN110470802A CN201910853053.0A CN201910853053A CN110470802A CN 110470802 A CN110470802 A CN 110470802A CN 201910853053 A CN201910853053 A CN 201910853053A CN 110470802 A CN110470802 A CN 110470802A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 59
- 231100000331 toxic Toxicity 0.000 title claims abstract description 36
- 230000002588 toxic effect Effects 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 133
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 126
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 124
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims description 19
- 230000000007 visual effect Effects 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000007726 management method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 231100000567 intoxicating Toxicity 0.000 description 1
- 230000002673 intoxicating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/14—Toxic gas alarms
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a kind of dam toxic and harmful gas monitoring and warning system and methods, the gas monitor alarm system includes monitoring unit, security unit, master controller, alarm unit and ventilating unit, the input terminal of the output end electrical connection master controller of the detection unit, the input terminal of output end the electrical connection alarm unit and ventilating unit of the master controller, the security unit and master controller are electrically connected.The present invention is scientific and reasonable, safe and convenient to use, is provided with ventilating unit, reduces the concentration of the hydrogen sulfide gas inside dam corridor, enters inside dam corridor convenient for staff and overhaul, and reduces the harm to the staff inside dam corridor is entered；The variation of dam corridor sulfureted hydrogen gas concentration is predicted using processor module, sulfureted hydrogen gas concentration variation inside dam can be effectively learnt, can be changed according to concentration and timely make counter-measure.
Description
Technical field
The present invention relates to gas monitoring techniques field, specifically a kind of dam toxic and harmful gas monitoring and alarming system and
Its method.
Background technique
Dam is a kind of building to be generated electricity using the energy of river water, is on the one hand stopped to river water, another
Aspect generates electricity, and more gallery is had inside dam, logical for being overhauled to the generating set inside dam
Road, but since dam is located at the bottom, hypertoxic hydrogen sulfide gas, stink damp can be generated after the water-bed biological putrefaction of dead body
Cognition penetrates into inside dam corridor, so that the sulfureted hydrogen gas concentration inside dam corridor constantly increases, as work people
When member is overhauled into dam, it will lead to staff and intoxicating phenomenon occur, threaten the life security of staff, institute
It is badly in need of a kind of dam toxic and harmful gas monitoring and warning system and method with, people to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of dam toxic and harmful gas monitoring and warning system and methods, to solve
The problem of proposing in the prior art.
To achieve the above object, the invention provides the following technical scheme: a kind of dam toxic and harmful gas monitoring alarm system
System, which includes monitoring unit, security unit, master controller, alarm unit and ventilating unit；
The output end of the detection unit is electrically connected the input terminal of master controller, the output end electricity of the master controller
Property connection alarm unit and ventilating unit input terminal, the security unit and master controller are electrically connected.
According to the above technical scheme, the master controller is used to carry out intelligent control to whole system, realizes to entire system
The processing and analysis for data of uniting；
The master controller includes processor module, data memory module, data disaply moudle and power module；
The output end of the processor module is electrically connected the input terminal of data memory module and data disaply moudle, institute
Processor module, data memory module and data disaply moudle is stated to be electrically connected with power module；
The processor module for the monitoring data of system to be handled and are analyzed, to the data of whole system into
Row calculates, and for the data memory module for storing to the monitoring data of system, the data memory module further includes cloud
End, for storing data to cloud, transferring and checking convenient for the later period, convenient for the toxic and harmful gas inside dam
Growth trend is analyzed, and the management to dam toxic and harmful gas is conducive to, and the data disaply moudle is used for processor
The concentration data and growth trend of toxic and harmful gas after resume module are shown that the power module is used for whole
The normal operation of a system provides electric energy.
According to the above technical scheme, the monitoring unit is for dense to the toxic and harmful gas inside entire dam corridor
Whether degree has the video inside personnel activity and gallery to carry out intellectual monitoring and monitoring；
The monitoring unit includes H2S detector, thermal infrared human inductor and monitoring camera；
The equal electrically connected processing of the output end of the H2S detector, thermal infrared human inductor and monitoring camera
The input terminal of device module；
The H2S detector is described for being measured in real time to the sulfureted hydrogen gas concentration inside dam corridor
H2S detector will test data and send data to processor module, the thermal infrared human body sensing by communication module
Whether device is for having personnel activity to detect dam corridor inside, and the processor module is according to sulfureted hydrogen gas concentration
Whether judgement personnel will appear dangerous situation in dam corridor internal activity, and the monitoring camera is used for dam corridor
Inside is monitored in real time.
According to the above technical scheme, the security unit is used for when dam corridor inside sulfureted hydrogen gas concentration is exceeded,
Forbid anyone to enter inside dam corridor by dam corridor entrance, avoid staff without knowing it into
Inside the dam corridor for entering sulfureted hydrogen gas concentration severe overweight, meanwhile, it avoids when showing that equipment breaks down, work people
Member enters by mistake through inside the dam corridor of sulfureted hydrogen gas concentration severe overweight, can effectively the personal of safeguard work personnel pacify
Entirely；
The security unit includes closing door, relay, control switch and detection module；
The output end of the detection module is electrically connected the input terminal of control switch, the output end electricity of the control switch
Property connection processor module input terminal, the output end of the processor module is electrically connected the input terminal of relay；
The closing door is used to close the entrance of dam corridor, and the relay is for automatically and manually controlling dam
The closing door of gallery is opened, and the control switch for opening dam when staff carries out perfectly sound safeguard procedures manually
The closing door of gallery, the detection module is for being placed on the outside of dam corridor, for providing hydrogen sulfide to processor module
Gas concentration does not have exceeded signal, big convenient in case of emergency entering convenient for opening closing door manually by control switch
It is overhauled inside dam gallery.
According to the above technical scheme, the ventilating unit is used for when dam corridor inside sulfureted hydrogen gas concentration is exceeded,
Ventilation processing is carried out to the air inside dam corridor, reduces the concentration of the hydrogen sulfide gas inside dam corridor, is convenient for work
Personnel, which enter inside dam corridor, to overhaul, and reduces the harm to the staff inside dam corridor is entered；
The ventilating unit includes ventilating fan；
The output end of the processor module is electrically connected the input terminal of ventilating fan.
According to the above technical scheme, when the alarm unit is used for exceeded to dam corridor inside sulfureted hydrogen gas concentration
Carry out warning reminding；
The alarm unit includes combined aural and visual alarm and timing module；
The output end of the processor module is electrically connected the input terminal of combined aural and visual alarm, the processor module and meter
When module be electrically connected；
The combined aural and visual alarm is for carrying out sound and light when sulfureted hydrogen gas concentration is exceeded inside dam corridor
Dual-alarm, remind staff pay attention to the sulfureted hydrogen gas concentration inside dam corridor change, the timing module for pair
The time of ventilating unit ventilation is recorded, and controls ventilation according to the concentration of hydrogen sulfide gas inside dam corridor convenient for the later period
Time, accomplish to be precisely controlled time of exchanging gas, save consumed by being taken a breath to dam corridor inside hydrogen sulfide gas
Power resource.
A kind of dam toxic and harmful gas monitoring alarm method, rigid method the following steps are included:
S1, the sulfureted hydrogen gas concentration in dam corridor is detected using H2S detector；
S2, detection data is analyzed and is handled using processor module, analyze concentration of hydrogen sulfide development trend；
S3, it is shown using data and concentration of hydrogen sulfide variation tendency of the data disaply moudle to processing and analysis；
S4, detection data is stored and is backed up using data memory module；
When S5, concentration are more than given threshold, warning reminding is carried out using combined aural and visual alarm, timing module starts timing；
S6, ventilation processing is carried out to the gas inside dam corridor using main controller controls ventilating fan；
It is S7, normally closed using main controller controls relay, guarantee that closing door can not be opened；
S8, it is inputted using detection module without concentration signal, control switch control relay is utilized to open.
According to the above technical scheme, in the step S1-S4, using H2S detector to dam corridor inside difference
The sulfureted hydrogen gas concentration data of period are detected, and the H2S detector will test data and be transmitted to processor die
Block；
Setting H2S detector once examines the sulfureted hydrogen gas concentration inside dam corridor every T time section
Survey, the time point detected every time be respectively as follows: 0-T, T-2T, 2T-3T, 3T-4T ..., nT- (n+1) T；
Detection sulfureted hydrogen gas concentration is respectively as follows: X every time1、X2、X3、X4、...、Xn；
The processor module is according to formula:
XnEach variation predicted according to last actually detected data；
The sulfureted hydrogen gas concentration variation of time T next inside dam corridor is passed through image by the processor module
Processing is shown on data disaply moudle, is changed according to the new data constantly detected to prediction result, the processor
Module enters the detection data storage of H2S detector in data memory module, is backed up and is stored.
According to the above technical scheme, in the step S5-S6, the H2S detector is detected inside dam corridor
Sulfureted hydrogen gas concentration when being more than the level-one threshold value of setting, the combined aural and visual alarm carries out first sound-light alarm, reminds work
Personnel notice that the sulfureted hydrogen gas concentration inside dam corridor changes, and the H2S detector detects inside dam corridor
Sulfureted hydrogen gas concentration be more than setting secondary threshold when, the combined aural and visual alarm carries out warning reminding, the master control again
Device control ventilating fan processed carries out ventilation processing to the gas inside dam corridor, and timing module is started to work in ventilating fan
Shi Jinhang timing records under current sulfureted hydrogen gas concentration, time Y required for ventilating fan normal ventilation.
According to the above technical scheme, in the step S7-S8, the H2S detector is detected inside dam corridor
Hydrogen sulfide gas be more than maximum concentration standard when, the main controller controls relay is normally closed, and the closing door can not be automatic
It opens；
Sulfureted hydrogen gas concentration severely exceeds and emergency occurs and needs to enter dam corridor inside dam corridor
When inside is overhauled, when staff carries out complete protection and prepares, using control switch will test module detection without sulphur
The model for changing hydrogen gas concentration is transmitted to processor module, and the processor module control relay is opened, guarantees occurring
When emergency, staff, which can enter inside gallery, to be overhauled.
Compared with prior art, the beneficial effects of the present invention are: being provided with security unit, staff is avoided not know
Enter inside the dam corridor that sulfureted hydrogen gas concentration severely exceeds in the case where feelings, meanwhile, avoid event occur in display equipment
When barrier, staff is entered by mistake through inside the dam corridor of sulfureted hydrogen gas concentration severe overweight, can effectively safeguard work
The personal safety of personnel；It is provided with timing module, is changed convenient for the later period according to the concentration control of hydrogen sulfide gas inside dam corridor
The time of gas accomplishes to be precisely controlled time of exchanging gas, and saving, which takes a breath to dam corridor inside hydrogen sulfide gas, to be disappeared
The power resource of consumption；It is provided with ventilating unit, reduces the concentration of the hydrogen sulfide gas inside dam corridor, is convenient for staff
It is overhauled inside into dam corridor, reduces the harm to the staff inside dam corridor is entered；Utilize processor die
Block predicts the variation of dam corridor sulfureted hydrogen gas concentration, can effectively learn sulfureted hydrogen gas concentration inside dam
Variation can change according to concentration and timely make counter-measure.
Detailed description of the invention
Fig. 1 is a kind of module composition block diagram of dam toxic and harmful gas monitoring and alarming system of the present invention；
Fig. 2 is a kind of module connection structure schematic diagram of dam toxic and harmful gas monitoring and alarming system of the present invention；
Fig. 3 is a kind of step schematic diagram of dam toxic and harmful gas monitoring alarm method of the present invention；
Fig. 4 is a kind of flow diagram of dam toxic and harmful gas monitoring alarm method of the present invention.
Fig. 5 is a kind of hydrogen sulfide gas prediction concentrations schematic diagram of dam toxic and harmful gas monitoring alarm method of the present invention；
Fig. 6 is a kind of hydrogen sulfide gas actual concentrations schematic diagram of dam toxic and harmful gas monitoring alarm method of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
As shown in Figs. 1-2, the present invention provides a kind of technical solution, a kind of dam toxic and harmful gas monitoring and alarming system,
The gas monitor alarm system includes monitoring unit, security unit, master controller, alarm unit and ventilating unit；
The output end of detection unit is electrically connected the input terminal of master controller, and the output end of master controller is electrically connected report
The input terminal of alert unit and ventilating unit, security unit and master controller are electrically connected.
Master controller: for carrying out intelligent control to whole system, processing and analysis to whole system data are realized；
Master controller includes processor module, data memory module, data disaply moudle and power module；
The output end of processor module is electrically connected the input terminal of data memory module and data disaply moudle, processor
Module, data memory module and data disaply moudle are electrically connected with power module；
Processor module: it is handled and is analyzed for the monitoring data to system, the data of whole system are counted
It calculates；
Data memory module: storing for the monitoring data to system, and data memory module further includes cloud, uses
It stores in by data to cloud, transferring and checking convenient for the later period becomes convenient for the growth to the toxic and harmful gas inside dam
Gesture is analyzed, and the management to dam toxic and harmful gas is conducive to；
Data disaply moudle: concentration data and growth for the toxic and harmful gas after handling processor module
Trend is shown；
Power module: electric energy is provided for the normal operation to whole system.
Monitoring unit: for inside entire dam corridor toxic and harmful gas concentration, whether have personnel activity and
Video inside gallery carries out intellectual monitoring and monitoring；
Monitoring unit includes H2S detector, thermal infrared human inductor and monitoring camera；
The equal electrically connected processing device mould of the output end of H2S detector, thermal infrared human inductor and monitoring camera
The input terminal of block；
H2S detector: for being measured in real time to the sulfureted hydrogen gas concentration inside dam corridor, hydrogen sulfide inspection
Survey instrument will test data and send data to processor module by communication module；
Thermal infrared human inductor: for whether thering is personnel activity to detect dam corridor inside, processor module
Determine whether personnel will appear dangerous situation in dam corridor internal activity according to sulfureted hydrogen gas concentration；
Monitoring camera: for being monitored in real time to dam corridor inside.
Security unit: for forbidding anyone to pass through dam when sulfureted hydrogen gas concentration is exceeded inside dam corridor
Gallery entrance enters inside dam corridor, avoids staff from entering sulfureted hydrogen gas concentration without knowing it serious
Inside exceeded dam corridor, meanwhile, it avoids when showing that equipment breaks down, it is dense that staff enters by mistake through hydrogen sulfide gas
Spend inside the dam corridor severely exceeded, can effectively safeguard work personnel personal safety；
Security unit includes closing door, relay, control switch and detection module；
The output end of detection module is electrically connected the input terminal of control switch, the output end electrical connection part of control switch
The input terminal of device module is managed, the output end of processor module is electrically connected the input terminal of relay；
Closing door: for closing the entrance of dam corridor；
Relay: the closing door for automatically and manually controlling dam corridor is opened；
Control switch: for opening the closing door of dam corridor manually when staff carries out perfectly sound safeguard procedures；
Detection module: for being placed on the outside of dam corridor, do not have for providing sulfureted hydrogen gas concentration to processor module
There is exceeded signal, convenient for opening closing door manually by control switch, convenient in case of emergency entering inside dam corridor
It is overhauled.
Ventilating unit: it is used for when dam corridor inside sulfureted hydrogen gas concentration is exceeded, to the air inside dam corridor
Ventilation processing is carried out, the concentration of the hydrogen sulfide gas inside dam corridor is reduced, enters inside dam corridor convenient for staff
It is overhauled, reduces the harm to the staff inside dam corridor is entered；
Ventilating unit includes ventilating fan；
The output end of processor module is electrically connected the input terminal of ventilating fan.
Alarm unit: for it is exceeded to dam corridor inside sulfureted hydrogen gas concentration when carry out warning reminding；
Alarm unit includes combined aural and visual alarm and timing module；
The output end of processor module is electrically connected the input terminal of combined aural and visual alarm, processor module and timing module electricity
Property connection；
Combined aural and visual alarm: for carrying out pair of sound and light when sulfureted hydrogen gas concentration is exceeded inside dam corridor
It alarms again, staff is reminded to notice that the sulfureted hydrogen gas concentration inside dam corridor changes；
Timing module: for being recorded to the time that ventilating unit is taken a breath, convenient for the later period according to sulphur inside dam corridor
The time for changing the concentration control ventilation of hydrogen, accomplishes to be precisely controlled time of exchanging gas, save and dam corridor inside is vulcanized
Hydrogen carries out consumed power resource of taking a breath.
As shown in Figure 3-4, the present invention provides a kind of technical solution, a kind of dam toxic and harmful gas monitoring alarm method,
Rigid method the following steps are included:
S1, the sulfureted hydrogen gas concentration in dam corridor is detected using H2S detector；
S2, detection data is analyzed and is handled using processor module, analyze concentration of hydrogen sulfide development trend；
S3, it is shown using data and concentration of hydrogen sulfide variation tendency of the data disaply moudle to processing and analysis；
S4, detection data is stored and is backed up using data memory module；
When S5, concentration are more than given threshold, warning reminding is carried out using combined aural and visual alarm, timing module starts timing；
S6, ventilation processing is carried out to the gas inside dam corridor using main controller controls ventilating fan；
It is S7, normally closed using main controller controls relay, guarantee that closing door can not be opened；
S8, it is inputted using detection module without concentration signal, control switch control relay is utilized to open.
In step S1-S4, using H2S detector to dam corridor inside sulfureted hydrogen gas concentration in different time periods
Data are detected, and H2S detector will test data and be transmitted to processor module；
Setting H2S detector once examines the sulfureted hydrogen gas concentration inside dam corridor every T time section
Survey, the time point detected every time be respectively as follows: 0-T, T-2T, 2T-3T, 3T-4T ..., nT- (n+1) T；
Detection sulfureted hydrogen gas concentration is respectively as follows: X every time1、X2、X3、X4、...、Xn；
Processor module is according to formula:
XnEach variation predicted according to last actually detected data；
The sulfureted hydrogen gas concentration variation of time T next inside dam corridor is passed through image procossing by processor module
It is shown on data disaply moudle, prediction result is changed according to the new data constantly detected, processor module is by sulphur
The detection data storage for changing hydrogen detector enters in data memory module, is backed up and is stored.
In step S5-S6, H2S detector detects that the sulfureted hydrogen gas concentration inside dam corridor is more than setting
When level-one threshold value, combined aural and visual alarm carries out first sound-light alarm, and staff is reminded to pay attention to the stink damp inside dam corridor
Bulk concentration variation, H2S detector detect that the sulfureted hydrogen gas concentration inside dam corridor is more than the secondary threshold of setting
When, combined aural and visual alarm carries out warning reminding again, and main controller controls ventilating fan changes the gas inside dam corridor
Gas disposal, timing module carry out timing when ventilating fan is started to work, record under current sulfureted hydrogen gas concentration, wind of taking a breath
Time Y required for machine normal ventilation.
In step S7-S8, H2S detector detects that the hydrogen sulfide gas inside dam corridor is more than maximum concentration mark
On time, main controller controls relay is normally closed, and closing door can not automatically open；
Sulfureted hydrogen gas concentration severely exceeds and emergency occurs and needs to enter dam corridor inside dam corridor
When inside is overhauled, when staff carries out complete protection and prepares, using control switch will test module detection without sulphur
The model for changing hydrogen gas concentration is transmitted to processor module, and processor module controls relay and opens, and guarantees occurring promptly
When situation, staff, which can enter inside gallery, to be overhauled.
Embodiment one: as seen in figs. 5-6, it is set in the sulfureted hydrogen gas concentration point detected in time 0-T and the T-2T time
Not are as follows: X1=0.15ppm, X2=0.35ppm need the sulfureted hydrogen gas concentration to the 2T-3T period to predict；
According to formula:
It is calculated:
It is calculated: X3=0.82ppm；
Sulfureted hydrogen gas concentration in the actually detected 2T-3T period is X3=0.68pm；
The sulfureted hydrogen gas concentration of 3T-4T period is predicted；
It is calculated:
It is calculated: X4=1.32ppm；
Sulfureted hydrogen gas concentration in the actually detected 3T-4T period is 1.25ppm；
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, nothing
By from the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes be included within the present invention.It should not treat any reference in the claims as limiting related right
It is required that.
Claims (10)
1. a kind of dam toxic and harmful gas monitoring and alarming system, it is characterised in that: the gas monitor alarm system includes monitoring
Unit, security unit, master controller, alarm unit and ventilating unit；
The input terminal of the output end electrical connection master controller of the detection unit, the output end electrical connection of the master controller
The input terminal of alarm unit and ventilating unit, the security unit and master controller are electrically connected.
2. a kind of dam toxic and harmful gas monitoring and alarming system according to claim 1, it is characterised in that: the master control
Device processed is used to carry out intelligent control to whole system, realizes processing and analysis to whole system data；
The master controller includes processor module, data memory module, data disaply moudle and power module；
The output end of the processor module is electrically connected the input terminal of data memory module and data disaply moudle, the processing
Device module, data memory module and data disaply moudle are electrically connected with power module；
The processor module counts the data of whole system for the monitoring data of system to be handled and analyzed
It calculates, for the data memory module for storing to the monitoring data of system, the data memory module further includes cloud, is used
It stores in by data to cloud, the data disaply moudle is used for the dense of the toxic and harmful gas after processor module processing
Degree evidence and growth trend are shown that the power module is used to provide electric energy to the normal operation of whole system.
3. a kind of dam toxic and harmful gas monitoring and alarming system according to claim 1, it is characterised in that: the monitoring
Unit be used for inside entire dam corridor toxic and harmful gas concentration, whether have video inside personnel activity and gallery
Carry out intellectual monitoring and monitoring；
The monitoring unit includes H2S detector, thermal infrared human inductor and monitoring camera；
The output end of the H2S detector, thermal infrared human inductor and monitoring camera is electrically connected processor module
Input terminal；
The H2S detector is for being measured in real time the sulfureted hydrogen gas concentration inside dam corridor, the hydrogen sulfide
Detector will test data and send data to processor module by communication module, the thermal infrared human inductor for pair
Whether there is personnel activity to detect inside dam corridor, the processor module determines that personnel exist according to sulfureted hydrogen gas concentration
Whether dangerous situation will appear when dam corridor internal activity, and the monitoring camera is used to carry out dam corridor inside real-time
Monitoring.
4. a kind of dam toxic and harmful gas monitoring and alarming system according to claim 1, it is characterised in that: the insurance
Unit is used to forbid anyone to enter by dam corridor entrance big when dam corridor inside sulfureted hydrogen gas concentration is exceeded
Inside dam gallery；
The security unit includes closing door, relay, control switch and detection module；
The input terminal of the output end electrical connection control switch of the detection module, the output end electrical connection of the control switch
The input terminal of processor module, the input terminal of the output end electrical connection relay of the processor module；
The closing door is used to close the entrance of dam corridor, and the relay is for automatically and manually controlling dam corridor
Closing door is opened, and the control switch is used to open the envelope of dam corridor manually when staff carries out perfectly sound safeguard procedures
Door is closed, the detection module has for being placed on the outside of dam corridor for providing sulfureted hydrogen gas concentration to processor module
There is no exceeded signal.
5. a kind of dam toxic and harmful gas monitoring and alarming system according to claim 1, it is characterised in that: the ventilation
Unit is used to carry out ventilation processing to the air inside dam corridor when dam corridor inside sulfureted hydrogen gas concentration is exceeded；
The ventilating unit includes ventilating fan；
The output end of the processor module is electrically connected the input terminal of ventilating fan.
6. a kind of dam toxic and harmful gas monitoring and alarming system according to claim 1, it is characterised in that: the alarm
Unit carries out warning reminding when being used for exceeded to dam corridor inside sulfureted hydrogen gas concentration；
The alarm unit includes combined aural and visual alarm and timing module；
The input terminal of the output end electrical connection combined aural and visual alarm of the processor module, the processor module and timing module
It is electrically connected；
The combined aural and visual alarm is for carrying out the dual of sound and light when sulfureted hydrogen gas concentration is exceeded inside dam corridor
The time that the timing module of alarming is used to take a breath to ventilating unit records.
7. a kind of dam toxic and harmful gas monitoring alarm method, it is characterised in that: rigid method the following steps are included:
S1, the sulfureted hydrogen gas concentration in dam corridor is detected using H2S detector；
S2, detection data is analyzed and is handled using processor module, analyze concentration of hydrogen sulfide development trend；
S3, it is shown using data and concentration of hydrogen sulfide variation tendency of the data disaply moudle to processing and analysis；
S4, detection data is stored and is backed up using data memory module；
When S5, concentration are more than given threshold, warning reminding is carried out using combined aural and visual alarm, timing module starts timing；
S6, ventilation processing is carried out to the gas inside dam corridor using main controller controls ventilating fan；
It is S7, normally closed using main controller controls relay, guarantee that closing door can not be opened；
S8, it is inputted using detection module without concentration signal, control switch control relay is utilized to open.
8. a kind of dam toxic and harmful gas monitoring alarm method according to claim 7, it is characterised in that: the step
In S1-S4, dam corridor inside sulfureted hydrogen gas concentration data in different time periods are detected using H2S detector,
The H2S detector will test data and be transmitted to processor module；
It sets H2S detector and one-time detection is carried out to the sulfureted hydrogen gas concentration inside dam corridor every T time section, often
The time point of secondary detection be respectively as follows: 0-T, T-2T, 2T-3T, 3T-4T ..., nT- (n+1) T；
Detection sulfureted hydrogen gas concentration is respectively as follows: X every time1、X2、X3、X4、...、Xn；
The processor module is according to formula:
XnEach variation predicted according to last actually detected data；
The processor module changes the sulfureted hydrogen gas concentration of time T next inside dam corridor to be shown by image procossing
Show on data disaply moudle, prediction result is changed according to the new data constantly detected, the processor module will
The detection data storage of H2S detector enters in data memory module, is backed up and is stored.
9. a kind of dam toxic and harmful gas monitoring alarm method according to claim 7, it is characterised in that: the step
In S5-S6, the H2S detector detects that the sulfureted hydrogen gas concentration inside dam corridor is more than the level-one threshold value of setting
When, the combined aural and visual alarm carries out first sound-light alarm, and staff is reminded to notice that the hydrogen sulfide gas inside dam corridor is dense
Degree variation, the H2S detector detect that the sulfureted hydrogen gas concentration inside dam corridor is more than the secondary threshold of setting
When, the combined aural and visual alarm carries out warning reminding again, and the main controller controls ventilating fan is to the gas inside dam corridor
Body carries out ventilation processing, and timing module carries out timing when ventilating fan is started to work, records under current sulfureted hydrogen gas concentration,
Time Y required for ventilating fan normal ventilation.
10. a kind of dam toxic and harmful gas monitoring alarm method according to claim 7, it is characterised in that: the step
In rapid S7-S8, when the H2S detector detects that the hydrogen sulfide gas inside dam corridor is more than maximum concentration standard, institute
It is normally closed to state main controller controls relay, the closing door can not automatically open；
Sulfureted hydrogen gas concentration severely exceeds and emergency occurs and needs to enter inside dam corridor inside dam corridor
When being overhauled, when staff carries out complete protection and prepares, using control switch will test module detection without hydrogen sulfide
The model of gas concentration is transmitted to processor module, and the processor module control relay is opened.
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