CN105842405A - Gas concentration detector and control method thereof - Google Patents
Gas concentration detector and control method thereof Download PDFInfo
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- CN105842405A CN105842405A CN201610329814.9A CN201610329814A CN105842405A CN 105842405 A CN105842405 A CN 105842405A CN 201610329814 A CN201610329814 A CN 201610329814A CN 105842405 A CN105842405 A CN 105842405A
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- 239000007789 gas Substances 0.000 claims abstract description 367
- 238000012544 monitoring process Methods 0.000 claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 66
- 230000008054 signal transmission Effects 0.000 claims abstract description 59
- 238000007689 inspection Methods 0.000 claims abstract description 35
- 238000005070 sampling Methods 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 230000003993 interaction Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 12
- 239000002274 desiccant Substances 0.000 claims description 12
- 239000002341 toxic gas Substances 0.000 claims description 10
- 238000012795 verification Methods 0.000 claims description 8
- 238000007405 data analysis Methods 0.000 claims description 7
- 238000012937 correction Methods 0.000 claims description 6
- 230000036541 health Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 231100000331 toxic Toxicity 0.000 claims description 4
- 230000002588 toxic effect Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 abstract description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 22
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
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- 206010033799 Paralysis Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
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- 230000018044 dehydration Effects 0.000 description 1
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Classifications
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- 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
- G01N33/0057—Warfare agents or explosives
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- 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
- G01N33/0011—Sample conditioning
-
- 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
- G01N33/0047—Organic compounds
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention relates to the technical field of gas safety detection equipment, in particular to a gas concentration detector and a control method thereof. The gas concentration detector comprises a gas monitoring hardware system, a signal transmission module and a control system, wherein the control system is connected with the gas monitoring hardware system through the signal transmission module to control the gas monitoring hardware system and receive data information from the gas monitoring hardware system; the gas monitoring hardware system comprises a gas acquisition module, a gas pretreatment module, a drain module, a power module and a gas detection module; the control system comprises a circuit control module and an upper computer module. According to the gas concentration detector, a monitoring point can be selected according to a practical requirement, the concentration of gas in an inspection well can be monitored on line in real time, the gas concentration detector has intelligent sampling, water-gas separation, flow monitoring control and drain functions, the concentrations of multiple kinds of gases can be monitored at the same time, and whether a gas pipeline leaks or not can be judged in real time.
Description
Technical field
The present invention relates to gas safety detection equipment technical field, particularly relate to a kind of gas concentration
Detector and control method thereof.
Background technology
The surrounding of underground gas pipeline is typically soil layer, after combustion gas leaks out from Gas Pipe,
Can be diffused in the space of surrounding by soil layer.The natural gas leaking that pipeline crack causes is general not
The jet-stream wind of high pressure can be formed, and the combustion gas revealed can be diffused in adjacent pipeline, and
Accumulating in pipeline and then progressively reach explosion limit, in therefore should strengthening underground piping, gas is dense
The detection of degree.
Current pipeline all uses well lid to close, and is isopiestic state in pipeline, and combustion gas can be at pipeline
Interior to two ends diffusion, gradually arrive well head, build up and continue to spread forward.
The complexity arranged in view of monitoring point and the performance of sensor, if by sensor cloth
Putting in-line, difficulty of construction is big, and sensor is easily by water logging, especially at sewage and rain
In waterpipe, the maintenance difficulties of sensor is the biggest.Generally monitoring point is arranged in inspection shaft at present
In.But in simultaneously in inspection shaft, on the one hand fuel gas derives from well, Organic substance rots to produce, main
If methane；On the other hand derive from what gas leakage produced, including methane and ethane, therefore,
Need to monitor methane gas simultaneously and ethane gas is just capable of determining whether it is to have gas pipeline to fire
Gas leakage.
Gas detector is the instrument and meter instrument of a kind of gas leakage Concentration Testing, according to use
Mode is divided can be divided into portable and hand-held two kinds, permissible according to the principle point of sensor
Be divided into infrared gas detector, pyromagnetic gas detector, electrochemical gas detector, half
Conductor type gas detector and ultraviolet gas detector etc..
These concentration monitors have its advantage, but there is also the most all shortcomings.Such as Patent No. ZL
200420049717.7 patent in disclose and a kind of natural gas leaking situation at inspection shaft carried out
Monitor and upload the monitoring system of leakage information in real time, but alarm need to be arranged in inspection shaft,
Owing in inspection shaft, itself does not has power supply, cause power supply difficulty and the signal transmission difficulty of alarm,
And it is likely at heavy rain alarm device not had by water logging, causes alarm to be scrapped.Therefore, right
When all of gas pipeline is monitored, need road large area excavation paving line to solve power supply
With the problem of signal transmission, during actual installation, the expense of operation is the highest and very difficult reality
Existing.The patent of Patent No. ZL200920252054.1 discloses a kind of air suction type detection of gas
System, but this system is not for the gas ductwork Leak Detection based on detection inspection shaft,
It is not related to signal transfer functions, it is impossible to constitute and burning line in a large area is leaked into row
The system of on-line monitoring.The patent of Patent No. ZL201010587425.9 discloses a kind of base
In the fuel gas multiple spot on-line monitoring system of wireless sensor network, this system is not related to
Gas in inspection shaft is sampled, and the most right in gas leakage detecting system based on inspection shaft
It is the key point of detecting system that gas carries out sampling.
In addition most detectors does not possess the function of monitoring in real time.
Defect in view of the aforementioned technical background, the invention provides a kind of gas concentration detector and
Its control method.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention there is provided a kind of gas concentration detector and control thereof
Method, it is possible to select monitoring point, gas concentration in real time on-line monitoring inspection shaft according to actual needs.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of gas concentration detector, bag
Including gas-monitoring hardware system, signal transmission module and control system, described control system is passed through
Signal transmission module is connected with gas-monitoring hardware system, to control described gas-monitoring hardware system
Unite and receive the data message from described gas-monitoring hardware system, described gas-monitoring hardware
System includes:
Gas collecting module, including the gas collecting passage of electromagnetic valve and multi-channel parallel, each institute
State gas collecting passage and can gather gas, and each described gas collecting from each inspection shaft respectively
Passage all connects with described electromagnetic valve；
Gas pretreatment module, including the gas treatment passage with described gas collecting block coupled in series,
Described gas treatment passage is parallel with drain module by least one moisture separator；
Power plant module, flows for the described gas in this described gas concentration detector and provides power；
Gas detection module, and described gas treatment Tandem, after separating aqueous vapor
Gas carries out toxic and harmful Concentration Testing, and the gas data information detected is transferred to
Described control system.
Further, the inlet end of described gas collecting passage is provided with gas sampling assembly, described
Gas sampling assembly is correspondingly arranged in described inspection shaft, described gas sampling assembly and electromagnetic valve it
Between gas collecting passage on be additionally provided with filter ball.
Further, the moisture separator on described gas treatment passage is three, described in three
The first vapor sensor it is in series with the most respectively between moisture separator；And three described aqueous vapors separate
The water inlet of drain module described in the water export of device parallel communication respectively.
Further, described drain module includes the second vapor sensor and the draining of serial communication
Pump, described second vapor sensor is connected with the water export of moisture separator by check-valves,
Described draining pump is communicated with discharge outlet.
Further, described gas pretreatment module also includes desiccant, the one of described desiccant
End is connected by the gas outlet of check-valves with described moisture separator, other end serial communication institute
State power plant module.
Further, described power plant module includes air pump, the two ends of described air pump respectively with
Gas pretreatment module connects with gas detection module.
Further, described gas detection module includes two detection branch of parallel connection, two institutes
State detection branch and be connected in series described power plant module, wherein a described detection by threeway respectively
Branch road is connected in series with spinner flowmeter, combustible/toxic gas sensor, electronic flowmeter and row
QI KOU, another described detection branch is connected with described air vent by pipeline；Described flammable/have
Poisonous gas sensor couples with the signal transceiver of signal transmission module.
Further, described control system includes:
Circuit control module, respectively with described gas collecting module, gas pretreatment module, row
Water module, gas detection module and signal transmission module couple；
Upper computer module, is coupled with circuit control module by described signal transmission module.
Further, described circuit control module includes control module hardware and control module software；
Described control module hardware includes circuit control panel, and described circuit control panel is respectively with described
Gas collecting module, gas pretreatment module, drain module, gas detection module and signal pass
Defeated module couples；
Described control module software includes software section and control circuit；
Described software section includes that the equipment coupled with described signal transmission module respectively remotely controls
Module and communication center；
Described control circuit includes the gas-monitoring mould coupled respectively with described signal transmission module
Block, draining control module, correction verification module and self-protection module, described gas-monitoring module bag
Include gas collecting control module, control module is surveyed in the gentle health check-up of gas treatment control module, described
Gas collecting control module, the gentle health check-up of gas treatment control module survey control module respectively with gas
Body acquisition module, gas pretreatment module and gas detection module couple；Described draining controls mould
Block couples with described drain module；Described self-protection module includes module time calibration, antitheft
Module, lightning-protection module, rainproof module and dustproof module；
Described upper computer module includes data read module, the data display storage mould being coupled to each other
Block, data analysis module and human-computer interaction interface, described data read module is transmitted by signal
Module couples with gas monitoring system, and described human-computer interaction interface and described equipment remotely control mould
Block couples；Described human-computer interaction interface is also associated with warning function module, described warning function mould
Block couples with self-protection module.
Present invention also offers the control method of gas concentration detector as above, its feature
It is, comprises the following steps:
The gas in each inspection shaft is gathered respectively by the gas collecting passage of multi-channel parallel；
By gas pretreatment module, the described gas gathered is carried out gas-water separation pretreatment；
By gas detection module, pretreated described gas is detected, described to obtain
The data message of gas；
By the data message of gas described in control system analysis, to judge whether gas pipeline is let out
Leakage；
Show described judged result by described control system, and adjust according to described judged result
Described gas collecting module, gas pretreatment module and gas detection module.
(3) beneficial effect
The technique scheme of the present invention has the advantages that the gas concentration detection of the present invention
Instrument includes gas-monitoring hardware system, signal transmission module and the control system being interconnected, control
System processed is connected, to control gas-monitoring with gas hardware monitoring system by signal transmission module
Hardware system also receives the data message from gas-monitoring hardware system, gas-monitoring hardware system
System includes: gas collecting module, gas pretreatment module, drain module, power plant module are gentle
Body detection module；Control system includes: circuit control module and upper computer module.This gas is dense
Degree detector can select monitoring point according to actual needs, and in real time on-line monitoring inspection shaft, combustion gas is dense
Degree, can detect multiple gases, as examined the most simultaneously by catalysis, the mode such as infrared
Survey the harmful gas concentration such as methane, ethane, H2S and CO, there is intellegent sampling, aqueous vapor is divided
Control from, flow monitoring, drain function, and there is remote control function, basement can be monitored simultaneously
Whether the methane gas in well and ethane gas concentration, real-time judge can have gas pipeline to let out
The situation of leakage occurs；By arranging one or more levels moisture separator, it can be ensured that effectively divide
Moisture in gas to be measured, is prevented effectively from moisture in gas the highest and cause gas test
Assembly damages, and can effectively protect this gas concentration detector.
Accompanying drawing explanation
Fig. 1 is the frame of the gas detecting hardware system of the gas concentration detector of the embodiment of the present invention
Frame schematic diagram；
Fig. 2 is the knot of the gas detecting hardware system of the gas concentration detector of the embodiment of the present invention
Structure schematic diagram；
Fig. 3 is the structural representation of the gas collecting passage of the embodiment of the present invention；
Fig. 4 is the block schematic illustration of the control module hardware of the embodiment of the present invention；
Fig. 5 is the block schematic illustration of the control module software of the embodiment of the present invention；
Fig. 6 is the block schematic illustration of the control circuit of the embodiment of the present invention；
Fig. 7 is the block schematic illustration of the upper computer module of the embodiment of the present invention；
Fig. 8 is the signal transport frame figure of the control system of the embodiment of the present invention；
Fig. 9 is the circuit control framework figure of the circuit control module of the embodiment of the present invention.
Reference in each accompanying drawing is as follows above:
100, gas collecting module；200, gas pretreatment module；300, power plant module；400、
Drain module；500, gas detection module；600, signal transmission module；
1, electromagnetic valve；1-1, gas sampling assembly；1-2, filter ball；2, the 3,4, first water
Gas sensor；5, the second vapor sensor；6,7,8, moisture separator；9、10、11、
Check-valves；12, desiccant；13, air pump；14, draining pump；15, spinner flowmeter；
16, combustible/toxic gas sensor；17, electronic flowmeter；18, signal transceiver；19、
Threeway；20, discharge outlet；21, air vent；22, explosion-proof tank；
700, circuit control module；710, circuit control panel；720, power supply；730, software
Part；731, equipment remote control module；732, communication center；740, control circuit；741、
Gas-monitoring module；741-1, gas collecting control module；741-2, gas treatment control module；
741-3, gas detecting control module；742, draining control module；743, correction verification module；744、
Self-protection module；744-1, module time calibration；744-2, anti-theft module；744-3, anti-
Thunder module；744-4, rainproof module；744-5, dustproof module；
800, upper computer module；810, data read module；820, data display memory module；
830, data analysis module；840, human-computer interaction interface；841, warning function module.
Detailed description of the invention
With embodiment, embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention.
In describing the invention, except as otherwise noted, " multiple " are meant that two or two
Above.Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ",
The orientation of the instruction such as " head ", " afterbody " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.Additionally, term " first ", " second ", "
Three " etc. it is only used for describing purpose, and it is not intended that instruction or hint relative importance.
The gas concentration detector that the present embodiment provides includes that gas-monitoring hardware system, signal pass
Defeated module 600 and control system, described control system passes through signal transmission module 600 and gas
Monitoring hardware system connects, to control gas-monitoring hardware system and to receive from gas-monitoring hard
The data message of part system, in the present embodiment, gas-monitoring hardware system includes: gas collecting
Module 100, gas pretreatment module 200, power plant module 300, drain module 400 and gas
Detection module 500, this gas concentration detector can select monitoring point, in real time according to actual needs
Gas concentration in on-line monitoring inspection shaft, have intellegent sampling, aqueous vapor separate, flow monitoring control,
Drain function, and there is remote control function, the methane gas in inspection shaft and second can be monitored simultaneously
Whether alkane gas and the concentration of other multiple flammable/toxic gas, real-time judge can have gas pipeline
The situation that leakage occurs occurs.
The structure of the gas-monitoring hardware system of the present embodiment as depicted in figs. 1 and 2, adopt by gas
Collection module 100 includes the gas collecting passage of electromagnetic valve 1 and multi-channel parallel, each gas collecting
Passage can gather respectively gas from each corresponding inspection shaft, and each gas collecting passage all with
Electromagnetic valve 1 connects, and can be controlled the opening and closing of each gas collecting passage respectively by electromagnetic valve 1,
It is thus possible to select monitoring point according to actual needs, control to be arranged on the gas collecting of this monitoring point
Channel acquisition gas.
Gas can be entered evenly and rapidly by the gas collecting passage of multi-channel parallel in order to ensure gas
In pretreatment module 200, preferably the gas collecting passage of multi-channel parallel is all by air inlet and gas
The inlet end connection of body pretreatment module 200；The structure of gas collecting passage as it is shown on figure 3,
It is corresponding that the inlet end of gas collecting passage is provided with gas sampling assembly 1-1, gas sampling assembly 1-1
It is arranged in inspection shaft, so that gas in inspection shaft enters gas via this gas sampling assembly 1-1 at this
In body acquisition channel, on the gas collecting passage between gas sampling assembly 1-1 and electromagnetic valve 1 also
It is provided with filter ball 1-2, the gas collected with preliminary filtration；Preferably gas sampling assembly 1-1
Inlet end be arranged in inspection shaft, the inlet end of gas sampling assembly 1-1 is respectively placed in need prison
The top of the inspection shaft surveyed, and drainage screen is set on the inlet end of gas sampling assembly 1-1, with mistake
Filter asks 1-2 to coordinate the toxic and harmful gathering and filtering in inspection shaft.
In the present embodiment, gas pretreatment module 200 is for the gas in the inspection shaft collected
Carry out pretreatment, preferably pass through between gas pretreatment module 200 and gas collecting module 100
Pipeline connects.This gas pretreatment module 200 include with the gas of gas collecting block coupled in series at
Reason passage, gas treatment passage is parallel with draining by least one moisture separator 6,7,8
Module 400.
In the present embodiment, preferably gas treatment passage is provided with three moisture separators 6,7,8,
The first vapor sensor 2,3,4 it is in series with the most respectively between three moisture separators 6,7,8,
6,7,8 and three the first vapor sensor 2,3,4 serial communication of i.e. three moisture separators
And be arranged alternately, the most progressively to sense in the gas by three moisture separators 6,7,8
Moisture；The parallel communication draining respectively of the water export of three moisture separators 6,7,8
The water inlet of module 400.
For the ease of the smooth and easy discharge of energy of isolated aqueous water, in the present embodiment, drain module 400
Including the second vapor sensor 5 and the draining pump 14 of serial communication, the second vapor sensor 5 is used
Whether carrying out draining and detection displacement in monitoring moisture trap 6,7,8, the second aqueous vapor passes
Sensor 5 is connected with the water export of moisture separator 7,8 by check-valves 9,10 respectively, with
Liquid countercurrent when preventing draining, affects the normal work of moisture separator 6,7,8, draining pump
14 are communicated with discharge outlet 20, to be discharged from discharge outlet 143 by the aqueous water in current treatment channel.
The moisture separator 6,7,8 of the present embodiment can receive signal in control system and be gas
Body monitoring hardware system carries out draining during issuing signal instruction, to realize protective gas detection mould
The purpose of block 500, thus effectively protect this gas concentration detector.
In order to ensure the follow-up gas detection module 500 accuracy to gas detecting, this enforcement
The gas pretreatment module 200 of example also includes that desiccant 12, one end of desiccant 12 pass through non-return
The inlet end of valve 11 and gas outlet's serial communication of moisture separator 8, i.e. desiccant 12 leads to
The gas outlet of the moisture separator 8 crossing check-valves 11 and be arranged on last connects, with right
Gas after dehydration is further dried, and arranging of check-valves 11 can effectively prevent gas inverse
Stream；Desiccant 12 preferably can be made up of multiple materials such as silica gel.
The other end serial communication power plant module 300 of desiccant 12, power plant module 300 be used for be
Gas flowing in this gas concentration detector provides power, and power plant module 300 includes but do not limits
In air pump, it is also possible to for other can be air in pipeline flowing provide power device, this
In embodiment, preferably power plant module 300 is made up of air pump 13, and the two ends of air pump 13 are divided
Do not connect with gas pretreatment module 200 and gas detection module 500.
In the present embodiment, gas detection module 500 and gas pretreatment module 200 pass through power
Module 300 is connected, and the gas after separating aqueous vapor carries out gas concentration detection, and will inspection
The gas data information measured is transferred to control system.Gas detection module 500 includes parallel connection
Article two, detection branch, two detection branch are connected in series power plant module 300 by threeway 19 respectively,
Wherein a detection branch is connected in series with spinner flowmeter 15, combustible/toxic gas sensor
16, electronic flowmeter 17 and air vent 21, another detection branch passes through pipeline directly by threeway
19 connect with air vent 21；Combustible/toxic gas sensor 16 and signal transmission module 600
Signal transceiver 18 couples, and passes through signal transceiver with the data by the flammable/toxic gas of detection
18 are transferred to signal transmission module 600, are then further transmitted to control system.
In the present embodiment, the inlet end of the air pump 13 of power plant module 300 and desiccant 12
Outlet side is connected by pipeline, and air pump 13 is preferably electrodynamic type asepwirator pump or membrane pump, uses
In the gas in inspection shaft is delivered to spinner flowmeter 15 and electronic flowmeter according to default flow velocity
17；Spinner flowmeter 15 and electronic flowmeter 17 cooperate, and are possible not only to detected gas stream
Amount can also control gas flow, and wherein, spinner flowmeter 15 is by the most poisonous/flammable for gas transmission
Gas sensor 16, utilizes poisonous/combustible gas sensor 16 to detect gas concentration.
In the present embodiment, as shown in Fig. 4～Fig. 8, control system includes circuit control module 700
With upper computer module 800；Circuit control module 700 respectively with gas collecting module 100, gas
Pretreatment module 200, drain module 400, gas detection module 500 and signal transmission module 600
Couple；Upper computer module 800 is by signal transmission module 600 and circuit control module 700
Connecing, upper computer module 800 receives gas-monitoring hardware system by signal transmission module 600 and passes
The gas data information come, and data are analyzed storage, utilize circuit control module simultaneously
700 pairs of gas-monitoring hardware systems are controlled.
In the present embodiment, circuit control module 700 includes that control module hardware and control module are soft
Part, the circuit control structure of circuit control module 700 is as it is shown in figure 9, control module software divides
Do not couple with control module hardware, signal transmission system 600 and upper computer module 800, with logical
Cross signal transmission system 600 and obtain the data message from gas-monitoring hardware system, and transmit
To upper computer module 800, obtain the data analysis information from upper computer module 800 simultaneously, and
By the control module hardware work shape to gas-monitoring hardware system and signal transmission system 600
State is controlled.
As shown in Figure 4, control module hardware includes circuit control panel 710 and power supply 720, circuit
Panel 710 respectively with gas collecting module 100, gas pretreatment module 200, drain module
400, gas detection module 500 and signal transmission module 600 couple, with respectively to gas-monitoring
The duty of hardware system and signal transmission module 600 is controlled.
As it is shown in figure 5, control module software includes software section 730 and control circuit 740, soft
Part part 730 respectively with upper computer module 800, signal transmission module 600 and control circuit 740
Coupling, control circuit 740 couples with control module hardware；Software section 730 include respectively with
The equipment remote control module 731 of signal transmission module 600 connection and communication center 732, equipment
Remote control module 731 is connected with the human-computer interaction interface 840 of upper computer module 800, passes through
The reading of signal in upper computer module 800, show, store and analyze, operate controllers
Just can send instruction by human-computer interaction interface 840 to equipment, after input instruction, equipment is remote
Process control module 731 is then believed to gas-monitoring hardware sending action by signal transmission module 600
Number, communication center 732 ensures stable signal transmission and the center of reliability as one,
The effect of key is served during signal transmission.Under the effect of control circuit 740, if
For after receiving the signal that signal transmission module 731 is sent, carry out corresponding action accurately,
Complete to operate the command adapted thereto that controllers is assigned.
As shown in Figure 6, control circuit 740 includes coupling with signal transmission module 600 respectively
Gas-monitoring module 741, draining control module 742, correction verification module 743 and self-protection module
744, gas-monitoring module 741 includes that gas collecting control module 741-1, gas treatment control
Control module 741-3, gas collecting control module 741-1, gas are surveyed in the gentle health check-up of module 741-2
The gentle health check-up of body processing and control module 741-2 survey control module 741-3 respectively with gas collecting module
100, gas pretreatment module 200 and gas detection module 500 couple；Draining control module 742
Couple with drain module 400；Self-protection module 744 includes module 744-1 time calibration, prevents
Steal module 744-2, lightning-protection module 744-3, rainproof module 744-4 and dustproof module 744-5.
After a period of time is not started working or worked to gas detection module 500, in order to protect
Card gas concentration detector can normally and high precision work, it is necessary to gas detecting mould
Block 500 verifies.When electromagnetic valve 1 is opened, allow multiple gas sampling assembly 1-1
Open successively and work, and unlatching needs certain interval of time, in the effect of air pump 13 every time
Under, gas, after gas detection module 500 completes gas detection function, is closed multiple gas and is adopted
Sampling device 1-1 and air pump 13；Opening water discharge module 400 and draining pump 14 simultaneously, in draining
Under the effect of pump 14, gas passes sequentially through three moisture separators 6,7,8 and enters drain module
In 400, when the second vapor sensor 5, if now the second vapor sensor 5 can detect
Have the signal of liquid in pipeline, then the second vapor sensor 5 is by signal transmission module 600
The information of signal change is transmitted, at electricity to equipment remote control module 731 and correction verification module 743
Under the control on road, equipment remote control module 731 then controls drain module by circuit control panel
400 start the most again while emptying water on checking routine once, at checking routine each time
During, it is long-range that the message that the second vapor sensor 5 can change each signal is transferred to equipment
Control module 731 and correction verification module 743, until can't detect current in the second vapor sensor 5
Signal, i.e. ensure that the water in three moisture separators 6,7,8 drains only, then this time verify
Terminate.Verification terminates, and shows to carry out the detection program of gas, i.e. gas detection module 500
Can normally work.
In self-protection module 744, in order to realize the self-protection function of system, and in real time to
The duty of equipment remote control module 731 reporting facility, the first vapor sensor 2,3,4
Signal transmission module 600 need to be passed through in real time with the second vapor sensor 5 and electronic flowmeter 17
Oneself data and duty is transmitted to equipment remote control module 731, and by controlling
Circuit 740 obtains the instruction from equipment remote control module 731.
In time calibration module 744-1, during gas concentration detects, due to the stream of gas
Moving, process and purification needs the regular hour, air-flow is by multipath gas acquisition channel air inlet
Time and remotely being controlled to equipment by the data of signal transmission module 731 conveying gas bulk concentration
It is poor to there is the regular hour in the time of module 731, receives at equipment remote control module 731
After the concentration data of surveyed gas, by control circuit 740 to reach the function of time renewal,
Thus ensure gas concentration data to be measured and the concordance of time, reach to detect in inspection shaft in time
The purpose of gas concentration, and then judge whether gas pipeline is let out according to the concentration data information of gas
Dew.
In anti-theft module 744-2, in order to ensure the anti-theft feature of this gas concentration detector, this gas
The gas-monitoring hardware system integral installation of bulk concentration detector, in an explosion-proof tank 22, uses
Mechanical stroke switchs, and for detecting position and the opening and closing of the integrated chamber door of explosion-proof tank 22, works as case
When door is opened, switch can transmit a signal to equipment remote control module 731 in time, it is achieved works as collection
Early warning when becoming case or internal components stolen, reaches antitheft function.
The lightning protection function of lightning-protection module 744-3 belongs to the function that carries of equipment, thunder and lightning and large-scale electricity
The transient overvoltage of gas equipment can pass through power supply, antenna, radio signal receipts the most frequently
The circuits such as the equipment of sending out invade indoor electric equipment and the network equipment, cause equipment or component damage,
Casualties, the data transmitted or store are interfered or lose, and even make electronic equipment produce
Misoperation or temporarily paralysis, system-down, data-transmission interruptions, LAN or even wide area network meet with
To destroying.Equipment is connected with the earth by wire, it is possible to effectively avoid above infringement, it is achieved
The self-protection of equipment.
In rainproof module 744-4, can be with widely used original intention based on this kind of equipment, it is contemplated that set
The complicated severe weather conditions being likely encountered in standby use, this equipment also has rainproof function,
Belong to the function that carries of equipment, device integration system opposing seal, there is water proofing property, mutually powered-down
Gas equipment and circuit board carry out anti-water management, and rainfall does not interferes with the sampling of gas and detection
Process, does not interferes with the transmission of signal and the acceptance of order yet.
What the dust reduction capability of dustproof module 744-5 fell within equipment carries function, at explosion-proof tank 22
Side Air Filter is installed, make this equipment have good sealing and thermal diffusivity, it is ensured that powder
Dirt will not enter in integrated equipment, and dust reduction capability is the basic demand to equipment.
As it is shown in fig. 7, upper computer module 800 include being coupled to each other data read module 810,
Data display memory module 820, data analysis module 830 and human-computer interaction interface 840, data
Read module 810 is coupled with gas monitoring system by signal transmission module 600, man-machine interaction
Interface 840 couples with equipment remote control module 731；Human-computer interaction interface is also associated with early warning
Functional module 841, warning function module 841 couples with self-protection module 744.
Upper computer module 800, i.e. can directly send the computer of manipulation order, upper computer module
When can demonstrate the gas concentration of each road gas sampling assembly collection on the screen of 800 and gather
Between data, and modules work time, first vapor sensor the 2,3,4 and second water
The signal intensity situation of gas sensor 5 and electronic flowmeter 17.Upper computer module 800 comprises
Major function have: receive signal transmission module 600 signal message, carry out signal data
Read, show and store, carry out the analysis of data, started by human-computer interaction interface 840
Equipment remote control module 731 action also carries out warning function by warning function module 841.
After signal transmission module 600 receives coherent signal, by the reading of data, storage,
Concentration data and the gas signal of gas just can be demonstrated on the screen of upper computer module 800
With the mutual transitional information of water-flow signal, by data analysis determine next step action and
Instruction, includes whether start air pump 13 and exhaust pump 14 and select to start gas detecting merit
Energy or drain function.Through data analysis, after drawing corresponding conclusion, as people and calculating
Transmit, exchange the human-computer interaction interface 840 of information media and dialog interface between machine then by setting
Standby remote control module 731 controls next step action and the realization of function of equipment, then sets
Standby remote control module 731 then passes through signal transmission module 600 to corresponding equipment sending action
Signal, instruct next step action of equipment.Meanwhile, connect when equipment remote control module 731
Receive the mechanical stroke chamber door sent of switch to be opened, i.e. integrated equipment is in abnormality
During signal, human-computer interaction interface 840 can directly initiate warning function module 841, reach and
Time early warning the purpose fixed a breakdown.Therefore, the process of whole signal transmission is actually one
The process of feedback, signal transmission module 600 then plays a part to link up and tie.
As shown in Figure 8, the solid arrow in figure is that signal is defeated to the signal transmission structure of the present embodiment
Outgoing direction, dotted arrow is that signal feeds back direction, upper computer module 800, signal transmission module
Being respectively present two-way data signal transmission stream between 600 and circuit control panel 710, circuit controls
Plate 710 and gas collecting module 100, power plant module 300, drain module 300 and power supply 720
Between be respectively present two-way data signal transmission stream, and gas pretreatment module 200 and gas
Respectively and between circuit control panel 710, there is unidirectional data signal output stream in detection module 500.
The present embodiment also proposed the control method of gas concentration detector as above, including
Following steps:
S1, gather the gas in each inspection shaft respectively by the gas collecting passage of multi-channel parallel；
S2, by gas pretreatment module to gather gas carry out gas-water separation pretreatment；
S3, by gas detection module 500, pretreated gas is detected, to obtain
The data message of gas；
S4, data message by control system analysis gas, to judge whether gas pipeline is let out
Leakage；
S5, by control system show judged result, and according to judged result adjust gas collecting
Module 100, gas pretreatment module 200 and gas detection module 500.
Concrete, when using this gas concentration detector to carry out gas detection function, first beat
Opening the power supply of gas-monitoring hardware system and control system, module 743 to be verified terminates verification journey
Sequence, it is remote that the signal that can normally be worked by equipment is transferred to equipment by signal transmission module 600
After process control module 731, equipment remote control module 731 is i.e. by circuit control panel 710
Order air pump 13 is in negative pressure duty, gas collecting module 100 is extend in inspection shaft
Gathering the gas in inspection shaft, air-flow to be measured can sequentially pass through gas sampling assembly 1-1, filter and ask
1-2 and the electromagnetic valve 1 controlled by circuit enter in gas collecting module 100, by circuit control,
Multipath electrovalve 1 possesses the free handoff functionality of multi-channel sampling mouth.In gas pretreatment module 200
In, air-flow is in the aqueous vapors of normal work under low discharge and low-pressure state and separates flowing through three
The liquid moisture in air-flow can be removed during device 6,7,8, under the control of circuit, the
One water flow sensing unit 2,3,4 is kept at any time by signal transmission module 600 respectively and equipment is remote
The data exchange of process control module 731, becomes when the second water flow sensing unit 5 reaching air-flow
The purpose of liquid moisture is not had, it is achieved automatically cut off when the second water flow sensing unit 5 is intake in Fen
The function of the gas treatment passage of gas pretreatment module, and time anhydrous, keep gas treatment to lead to
The function that the pipeline in road is unimpeded.
In gas treatment passage, gas to be measured enters one in check-valves 11 enters desiccant 12
Step removes moisture, and the most abundant dewatered air-flow then enters in gas detection module 500,
The gas flow flowing through pipeline is controlled to meet suitable range, electricity by spinner flowmeter 15
Flow then can be monitored by subflow gauge 17, spinner flowmeter 15 and electronic flowmeter 17
Signal transmission module 600 is passed through respectively to equipment remote control module 731 under the control of circuit
Delivery flow rate data.Then, the gas of certain flow passes through combustible/toxic gas sensor 16,
Carry out the test of the toxic and harmful concentration such as methane and ethane, to reach gas concentration in inspection shaft
The purpose of detection, meanwhile, combustible/toxic gas sensor 16 is connected with signal transceiver 18,
The dense of gas can be transmitted by signal transmission module 600 to control system under the control of circuit
Degrees of data, and the kind of gas, concentration and time are carried out one_to_one corresponding；Gas after detection
Body is discharged this gas concentration detector by air vent 21.
When gas detection module 500 is intake, when i.e. gas detection function can not normally realize,
Equipment remote control module 731 in receiving the second vapor sensor 5 with the presence of the letter of moisture
After number, can be closed by circuit control module 700 order air pump 13, order draining simultaneously
Pump 14 is opened, and simultaneously closes off multipath gas acquisition channel by electromagnetic valve 1；At draining pump
Under the effect of 14, gas sequentially passes through three moisture separators 6,7,8, three aqueous vapors is divided
The water deposited in device 6,7,8 is respectively pressed in drain module 400, by check-valves 9,10
After the second vapor sensor 5, discharge outlet 20 discharge.
It should be noted that between gas detection module 500 and signal transmission module 600, with
And can be connected by communication between signal transmission module 600 and control system, bag
Include but to be not limited to wired, wireless, 3G signal, 4G signal and GDB network schemer etc. multiple
Communication mode.
In sum, the gas concentration detector of the present embodiment includes the gas-monitoring being interconnected
Hardware system, signal transmission module 600 and control system, control system transmits mould by signal
Block 600 is connected with gas hardware monitoring system, to control gas-monitoring hardware system and to receive
From the data message of gas-monitoring hardware system, gas-monitoring hardware system includes: gas collecting
Module 100, gas pretreatment module 200, drain module 400, power plant module 300 and gas
Detection module 500；Control system includes: circuit control module 700 and upper computer module 800.
This gas concentration detector can select monitoring point, real time on-line monitoring inspection shaft according to actual needs
Interior gas concentration, can detect multiple gases, as targetedly by catalysis, the mode such as infrared
While detect the harmful gas concentration such as methane, ethane, H2S and CO, have intellegent sampling,
Aqueous vapor separates, flow monitoring controls, drain function, and has remote control function, can be simultaneously
Whether the methane gas in monitoring inspection shaft and ethane gas concentration, real-time judge can have gas pipeline
The situation that leakage occurs occurs；By arranging one or more levels moisture separator, it can be ensured that
Efficiently separate the moisture in gas to be measured, be prevented effectively from moisture in gas the highest and cause gas
Body test suite damages, and can effectively protect this gas concentration detector.
Embodiments of the invention are given for the sake of example and description, and are not nothing left
Leakage or limit the invention to disclosed form.Many modifications and variations are for this area
It is apparent from for those of ordinary skill.Selecting and describing embodiment is to more preferably illustrate
The principle of the present invention and actual application, and make those of ordinary skill in the art it will be appreciated that this
Invent thus design the various embodiments with various amendments being suitable to special-purpose.
In describing the invention, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixing even
Connect, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to
It it is electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In flow chart or at this, any process described otherwise above or method describe and can be managed
Solve for represent include one or more for the step that realizes specific logical function or process can
The module of code, fragment or the part of execution instruction, and the preferred embodiment of the present invention
Scope includes other realization, wherein can not be by order that is shown or that discuss, including basis
Involved function by basic mode simultaneously or in the opposite order, performs function, and this should
By embodiments of the invention, person of ordinary skill in the field understands.
Claims (10)
1. a gas concentration detector, it is characterised in that include gas-monitoring hardware system,
Signal transmission module and control system, described control system is supervised with gas by signal transmission module
Survey hardware system connects, to control described gas-monitoring hardware system and to receive from described gas
The data message of monitoring hardware system, described gas-monitoring hardware system includes:
Gas collecting module, including the gas collecting passage of electromagnetic valve and multi-channel parallel, each institute
State gas collecting passage and can gather gas, and each described gas collecting from each inspection shaft respectively
Passage all connects with described electromagnetic valve；
Gas pretreatment module, including the gas treatment passage with described gas collecting block coupled in series,
Described gas treatment passage is parallel with drain module by least one moisture separator；
Power plant module, provides for flowing for the described gas in this described gas concentration detector
Power；
Gas detection module, and described gas treatment Tandem, after separating aqueous vapor
Gas carries out toxic and harmful Concentration Testing, and the gas data information detected is transferred to
Described control system.
Gas concentration detector the most according to claim 1, it is characterised in that described gas
The inlet end of body acquisition channel is provided with gas sampling assembly, and described gas sampling assembly is correspondingly arranged
In described inspection shaft, on the gas collecting passage between described gas sampling assembly and electromagnetic valve also
It is provided with filter ball.
Gas concentration detector the most according to claim 1, it is characterised in that described gas
Moisture separator in body treatment channel is three, also distinguishes between three described moisture separators
It is in series with the first vapor sensor；And the parallel connection respectively of the water export of three described moisture separators
Connect the water inlet of described drain module.
Gas concentration detector the most according to claim 1, it is characterised in that described row
Water module includes the second vapor sensor and the draining pump of serial communication, described second aqueous vapor sensing
Device is connected with the water export of moisture separator by check-valves, and described draining pump is communicated with draining
Mouthful.
Gas concentration detector the most according to claim 1, it is characterised in that described gas
Body pretreatment module also includes desiccant, and one end of described desiccant is by check-valves and described water
The gas outlet of gas separating device connects, power plant module described in other end serial communication.
Gas concentration detector the most according to claim 1, it is characterised in that described dynamic
Power module includes air pump, the two ends of described air pump respectively with gas pretreatment module and gas
Detection module connects.
Gas concentration detector the most according to claim 1, it is characterised in that described gas
Body detection module includes two detection branch of parallel connection, and two described detection branch are respectively by three
Leading to and be connected in series described power plant module, wherein a described detection branch is connected in series with rotor stream
Gauge, combustible/toxic gas sensor, electronic flowmeter and air vent, another described detection
Branch road is connected with described air vent by pipeline；Described combustible/toxic gas sensor passes with signal
The signal transceiver of defeated module couples.
8. according to the gas concentration detector described in any one of claim 1-7, it is characterised in that
Described control system includes:
Circuit control module, respectively with described gas collecting module, gas pretreatment module, row
Water module, gas detection module and signal transmission module couple；
Upper computer module, is coupled with circuit control module by described signal transmission module.
Gas concentration detector the most according to claim 8, it is characterised in that described electricity
Road control module includes control module hardware and control module software；
Described control module hardware includes circuit control panel, and described circuit control panel is respectively with described
Gas collecting module, gas pretreatment module, drain module, gas detection module and signal pass
Defeated module couples；
Described control module software includes software section and control circuit；
Described software section includes that the equipment coupled with described signal transmission module respectively remotely controls
Module and communication center；
Described control circuit includes the gas-monitoring mould coupled respectively with described signal transmission module
Block, draining control module, correction verification module and self-protection module, described gas-monitoring module bag
Include gas collecting control module, control module is surveyed in the gentle health check-up of gas treatment control module, described
Gas collecting control module, the gentle health check-up of gas treatment control module survey control module respectively with gas
Body acquisition module, gas pretreatment module and gas detection module couple；Described draining controls mould
Block couples with described drain module；Described self-protection module includes module time calibration, antitheft
Module, lightning-protection module, rainproof module and dustproof module；
Described upper computer module includes data read module, the data display storage mould being coupled to each other
Block, data analysis module and human-computer interaction interface, described data read module is transmitted by signal
Module couples with gas monitoring system, and described human-computer interaction interface and described equipment remotely control mould
Block couples；Described human-computer interaction interface is also associated with warning function module, described warning function mould
Block couples with self-protection module.
10. the control method of the gas concentration detector as described in any one of claim 1-9, its
It is characterised by, comprises the following steps:
The gas in each inspection shaft is gathered respectively by the gas collecting passage of multi-channel parallel；
By gas pretreatment module, the described gas gathered is carried out gas-water separation pretreatment；
By gas detection module, pretreated described gas is detected, described to obtain
The data message of gas；
By the data message of gas described in control system analysis, to judge whether gas pipeline is let out
Leakage；
Show described judged result by described control system, and adjust according to described judged result
Described gas collecting module, gas pretreatment module and gas detection module.
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| CN108918902A (en) * | 2018-09-25 | 2018-11-30 | 上海新奥林汽车传感器有限公司 | A kind of gas function detecting instrument automation gas supply system |
| WO2020098370A1 (en) * | 2018-11-13 | 2020-05-22 | 阿里巴巴集团控股有限公司 | Container status detection method and device and electronic device |
| CN111693290A (en) * | 2019-03-15 | 2020-09-22 | 日本特殊陶业株式会社 | Gas sensor |
| WO2021179691A1 (en) * | 2020-03-12 | 2021-09-16 | 江苏维尤纳特精细化工有限公司 | Online waste gas monitoring apparatus for use in chlorothalonil industrial production |
| CN111442880A (en) * | 2020-04-26 | 2020-07-24 | 北京北方华创微电子装备有限公司 | Detection system and detection method for semiconductor equipment |
| CN113405740A (en) * | 2021-06-21 | 2021-09-17 | 北京卫星环境工程研究所 | Fluoride leakage detection equipment and detection method |
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