CN109253982A - infrared leak detector - Google Patents
infrared leak detector Download PDFInfo
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- CN109253982A CN109253982A CN201710566736.9A CN201710566736A CN109253982A CN 109253982 A CN109253982 A CN 109253982A CN 201710566736 A CN201710566736 A CN 201710566736A CN 109253982 A CN109253982 A CN 109253982A
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- 238000001914 filtration Methods 0.000 claims abstract description 38
- 239000000523 sample Substances 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000002452 interceptive effect Effects 0.000 claims abstract description 22
- 230000003139 buffering effect Effects 0.000 claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 7
- 210000005239 tubule Anatomy 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 15
- 238000007872 degassing Methods 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000622 irritating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
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- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of infrared leak detectors, interactive system is detected including infrared signal sampler, the preposition processing module of infrared signal, infrared intelligent, the infrared signal sent by infrared signal sampler sends infrared intelligent detection interactive system to after the preposition processing module processing of infrared signal.Infrared signal sampler includes the inlet duct being sequentially communicated, preposition air filtration buffer unit, front end air pump, infrared detecting device, postposition air-flow buffer device, postposition air pump.Inlet duct includes filter A, air-breathing probe assembly B, and preposition air filtration buffer unit includes filter C, buffering boundling pipeline D, and postposition air-flow buffer device includes buffering boundling pipeline G, electronic flowmeter H, pressure stabilizing boundling pipeline I.It includes touch chromatic liquid crystal screen, correspondence with foreign country port module that infrared intelligent, which detects interactive system,.The present invention uses the equilibrium air pressure scheme designed before and after infrared detecting device to reduce measurement error, with small, the high-efficient feature of measurement error.
Description
Technical field
The present invention relates to a kind of infrared leak detector, in particular to a kind of quickly, accurately detection specific gas leakage rate is red
Outer leak detector belongs to gas leakage detector field.
Background technique
Infrared leak detector is the intelligence for accurate quickly detection halogen gas, combustible refrigerant and SF6 quantity of gas leakage
Energy instrument, is applied to refrigeration industry, air-conditioning, central heating industry, power industry.The sensor of existing leak detector include semiconductor-type,
Infrared type, ionization type.Semiconductor-type detecting element made of metal oxide or metal semiconductor oxide material is constituted, with
Adsorption or reaction, the conductivity or C-V characteristic that cause carrier moving to be characterized or surface are generated when gas interacts
Potential change and carry out gas concentration measurement.The deficiency of semiconductor-type sensors most importantly decays seriously, by external interference
Greatly, rate of false alarm is high, and the measurement range of linearity is smaller, vulnerable to ambient temperature effect etc..Infrared type is a kind of point based on gas with various
Minor structure is different, has selection absorption characteristic to the light of infrared spectroscopy specific wavelength, utilizes gas concentration and absorption intensity relationship
(Lambert-Beer Lambert-Beer law) identifies gas component and determines the gas sensing device of its concentration, is chiefly used in online
Formula gas detection equipment.The leak detector of infrared ray principle is unable to quick response, can only be used as environment real time monitoring.Ionization type is
Diode, heater strip, cathode, anode are made of platinum product, and anode emits cation after being heated silk heating, received by cathode
Ion stream indicates after enhanced processing, and has sound equipment instruction, and electric part is by heating power supply, DC power supply, ion stream
The compositions such as amplifier, output display and portable getter device power supply.Ionization type reaction speed is fast, ionizes generated ion
Amount repeatability is bad, and measurement accuracy is not high.
The test section of leak detector has two kinds of gas circuit modes of suction-type and diffusion type, and diffusion type leak detector is commonly used to online reality
When monitor, the leak source that suction-type is applied to each component to be checked detects, and effect becomes apparent from.Leak detector basic principle on existing market
It is the sucking effect by air pump in rear end, the gas of detection mouth is sucked Instrument sensor, is handled by sensor signal, it is defeated
Indices parameter out.There are following clearly disadvantageous for such scheme: (1) the mode of single air pump causes instrument excessively to rely on air pump
Gettering ability, if air pump damages, instrument cannot work normally, make troubles to user；(2) single air pump sucks mode
It will cause the micro draught head of sensor side, the precision detected to leak detector affects, although can mend by Data correction
Such error is repaid, but under varying environment temperature atmospheric pressure, the consistency of above-mentioned compensation is unable to get guarantee, the applicability of instrument
It reduces.
Summary of the invention
The present invention is infrared, and leak detector discloses new scheme, using the equilibrium air pressure side designed before and after infrared detecting device
Case reduces measurement error, and solving the problems, such as existing similar product, there are larger measurement errors.
The infrared leak detector of the present invention includes infrared signal sampler, the preposition processing module of infrared signal, infrared intelligent inspection
Interactive system is surveyed, the infrared signal sent by infrared signal sampler is sent to after the preposition processing module processing of infrared signal
Infrared intelligent detects interactive system.Infrared signal sampler include the inlet duct being sequentially communicated, preposition air filtration buffer unit,
Front end air pump, infrared detecting device, postposition air-flow buffer device, postposition air pump, sample gas is in front end air pump, postposition air pump
It is successively discharged after inlet duct, preposition air filtration buffer unit, infrared detecting device, postposition air-flow buffer device under effect.
Inlet duct includes the filter A being sequentially communicated, air-breathing probe assembly B, and preposition air filtration buffer unit includes the mistake being sequentially communicated
Filter C, buffering boundling pipeline D, postposition air-flow buffer device include the buffering boundling pipeline G being sequentially communicated, electronic flowmeter H,
Pressure stabilizing boundling pipeline I.Infrared intelligent detection interactive system includes touch chromatic liquid crystal screen, correspondence with foreign country port module,
Operator detects interactive system with infrared intelligent by touch chromatic liquid crystal screen, correspondence with foreign country port module and exchanges letter
Breath.
Further, the inside of the filter A of this programme is equipped with dust removal assembly, and dust removal assembly includes several filtering net parts, filter
Active carbon air filtration layer is equipped between net means, dust removal assembly filters out the dust particles in sample gas.
Further, the air-breathing probe assembly B of this programme includes air inlet tubule boundling, and air inlet tubule boundling includes more air inlets
Tubule, sample gas are sucked by air inlet tubule boundling.
Further, the latus rectum of the air inlet tubule of this programme is 0.5mm.
Further, the inside of the filter C of this programme is equipped with dry component, and dry component includes several filtering net parts, filter
It is equipped between net means and absorbs moisture substance, dry component filters out the moisture in sample gas.
Further, the buffering boundling pipeline D of this programme, the inside of buffering boundling pipeline G are equipped with air-flow buffer column boundling,
Air-flow buffer column boundling includes the more air-flow buffer columns being interspersed in runner, and air-flow buffer column is by changing gas
Slow down the flow velocity of air-flow in the direction of stream.
Further, the pressure stabilizing boundling pipeline I of this programme includes degassing conduits boundling, and degassing conduits boundling includes more exhausts
Tubule, sample gas are discharged after passing through the pressure stabilizing of degassing conduits boundling.
Further, the infrared leak detector of the high-precision of this programme further includes air pump status real time monitor device, and air pump state is real
When monitoring device include air pump flow sensor, the flow that air pump status real time monitor device is transmitted according to air pump flow sensor
Exception information triggers alarm signal.
Further, the preposition processing module of the infrared signal of this programme includes infrared signal micro treatment module, integrated filter mould
Block, DMA data processing module, integrated filter module include average value filtering module, sliding medium filtering module, and infrared signal is micro-
Processing module is sent to integrated filter module after converting optical signals into electric signal, the signal after integrated filter resume module by
The transmission of DMA data processing module.
Further, the infrared intelligent detection interactive system of this programme further includes abnormal signal filtering module, external calibration mould
Block, abnormal signal filtering module shield distorted signal caused by external environment, and operator is set by the adjustment of external calibration module
Standby parameter setting.
The infrared leak detector of the present invention uses the equilibrium air pressure scheme designed before and after infrared detecting device to reduce measurement error,
Feature small with measurement error, high-efficient.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing infrared leak detector.
Fig. 2 is the schematic diagram of infrared signal sampler.
Fig. 3 is the principle schematic diagram of infrared signal sampler.
Fig. 4 is the schematic diagram of the infrared leak detector of the present invention.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, what leak detector currently on the market generallyd use is all suction-type detection method, crucial composition portion
It is divided into air pump, air pump is located at the rear end of sensor, and the working condition of air pump directly determines the state of gas sucking.In addition, single
Air pump sucking mode will cause the micro draught head of sensor side, and the precision detected to leak detector affects, although passing through number
Such error can be compensated according to correction, but under varying environment temperature atmospheric pressure, the consistency of above-mentioned compensation is unable to get guarantee.
As shown in Figure 2,3, 4, the schematic diagram of the infrared leak detector of the present invention.Infrared leak detector includes infrared signal sampler, infrared letter
Number preposition processing module, infrared intelligent detect interactive system, and the infrared signal sent by infrared signal sampler is through infrared letter
Send infrared intelligent detection interactive system after number preposition processing module processing to.Infrared signal sampler includes being sequentially communicated
Inlet duct, preposition air filtration buffer unit, front end air pump, infrared detecting device, postposition air-flow buffer device, postposition air pump, are adopted
Sample gas is under the action of front end air pump, postposition air pump successively by inlet duct, preposition air filtration buffer unit, infrared detection dress
It sets, be discharged after postposition air-flow buffer device.Inlet duct includes the filter A being sequentially communicated, air-breathing probe assembly B, preposition filter
Gas buffer unit includes the filter C being sequentially communicated, buffering boundling pipeline D, and postposition air-flow buffer device includes being sequentially communicated
Buffer boundling pipeline G, electronic flowmeter H, pressure stabilizing boundling pipeline I.Infrared intelligent detection interactive system includes touch colored liquid
Crystal display screen, correspondence with foreign country port module, operator by touch chromatic liquid crystal screen, correspondence with foreign country port module with
Infrared intelligent detects interactive system and exchanges information.Above scheme uses the equilibrium air pressure scheme designed before and after infrared detecting device
Reduce measurement error, use 2 air pumps, the inflatable mouth of preposition air pump, the rear end access of sensor are accessed in the front end of sensor
The suction inlet of postposition air pump eliminates the error of measurement to balance the air pressure at sensor both ends.Outside operator can be with
Pass through the working condition of interactive system monitoring device at any time.
In order to further increase the precision of instrument detection, the pressure distribution of gas circuit is balanced, avoids occurring in gas circuit biggish
Airflow fluctuation, this programme is improved on the basis of above scheme, specific as follows.In order to eliminate the dust in sample gas
Particle, this programme are equipped with dust removal assembly in the inside of filter A, and dust removal assembly includes several filtering net parts, is set between filtering net part
Active carbon filtration gas-bearing formation, dust removal assembly filter out the dust particles in sample gas.In order to cooperate the flow of air pump to adjust, this programme
Air-breathing probe assembly B include air inlet tubule boundling, air inlet tubule boundling includes more air inlet tubules, and sample gas passes through air inlet
The sucking of tubule boundling.Further, the latus rectum of the air inlet tubule of this programme is 0.5mm.In order to eliminate the moisture in sample gas, with
And the irritative gas that part is unrelated, this programme are equipped with dry component in the inside of filter C, dry component includes several strainers
Component, is equipped between filtering net part and absorbs moisture substance, and dry component filters out the moisture in sample gas.In order to accumulate buffering sampling
Air-flow, this programme are equipped with air-flow buffer column boundling in the inside for buffering boundling pipeline D, buffering boundling pipeline G, and air-flow buffer is vertical
Column boundling includes the more air-flow buffer columns being interspersed in runner, and air-flow buffer column is subtracted by changing the direction of air-flow
It gets a breathing space the flow velocity of stream.In order to stablize the air flow condition of gas circuit back segment, the pressure stabilizing boundling pipeline I of this programme includes degassing conduits collection
Beam, degassing conduits boundling include more degassing conduits, and sample gas is discharged after passing through the pressure stabilizing of degassing conduits boundling.In order to supervise in real time
The working condition for controlling air pump, avoids air pump operation irregularity state from influencing detection, and the infrared leak detector of the high-precision of this programme further includes
Air pump status real time monitor device, air pump status real time monitor device include air pump flow sensor, air pump status real time monitor
Device triggers alarm signal according to the Traffic Anomaly information that air pump flow sensor transmits.It is found in time convenient for Field Force in this way
Problem, debugging.
The preposition processing module of the infrared signal of this programme is that infrared signal is converted into electric signal, and electric signal is after treatment
It is transferred to the system module of infrared intelligent detection interactive system, in order to realize its function, the preposition processing of the infrared signal of this programme
Module includes infrared signal micro treatment module, integrated filter module, DMA data processing module, and integrated filter module includes average
Value filtering module, sliding medium filtering module, infrared signal micro treatment module convert optical signals into after electric signal be sent to it is comprehensive
Filter module is closed, the signal after integrated filter resume module is transmitted by DMA data processing module.And exist to improve system
The ability of maloperation is avoided in severe detection environment, the infrared intelligent detection interactive system of this programme further includes abnormal signal mistake
Module, external calibration module are filtered, abnormal signal filtering module shields distorted signal caused by external environment, and operator passes through outer
The parameter setting of portion's calibration module adjustment equipment.As shown in figure 4, sensor is infrared gas sensor, preposition module includes red
External signal processing module, average value filtering module, filter module, DMA data processing module in sliding, embedded system is to aim at
The interactive software operating system of infrared leak detector exploitation, touch color LCD screen intuitively shows various data, touch
Operation, power supply needed for power supply provides instrument.The signal that infrared sensor generates after treatment, is sent directly into based on embedded red
In outer intelligent measurement interactive operating system, user oriented designs multiple function touch interfaces, and provides user external world PORT COM
And each control function.
This programme discloses a kind of gas leakage detector applied in refrigeration industry, air-conditioning, central heating industry, power industry.
Based on the considerations of leak detector actual application environment, need it is a not only quickly, but also high-precision, and can be steady in relatively adverse circumstances
Surely the leak detector to work.This programme uses the leak detector of infrared ray principle modes on the basis of original leak detector, and combines current
The technology generally possessed in the market, which has been done, to be adopted and updates accordingly.The specific structure of this programme includes filter A: front end filtering
Device for filtering air in dust, probe B: gas sucking probe fine duct, internal diameter 0.5mm, filter C: use
In removing moisture and component environment internal stimulus gas in tested gas, preceding column tube D: buffered for gas build, air pump
E: for accelerating forward end gas to suck, gas sensor F: the tested gas for eliminating dust and moisture is sent into gas sensor
In, conversion output electric signal after being detected using infrared principles, rear column tube G: for absorbing the tested gas after gas sensor,
Electronic flowmeter H: real-time output flow state, whether measurement air-flow is normal, gas cushion I: for eliminating the tested of sucking
Air pump J: the pulsation phenomenon of gas accelerates tested gas discharge.Filter A is nested on the front end component of probe B, filter C
Before being nested on the front end component of column tube D, filter A, probe B belong to instrument External connecting part, referred to as instrument handle, probe B and
It is connected between filter C using leimo modular connection, preceding column tube D is connected with air pump E using 4 tetrafluoro hose of φ, and air pump E is gentle
Using φ 3, slotting pneumatic joint connects body sensor F fastly with rear column tube G, and rear column tube G, electronic flowmeter H, gas cushion I are gentle
It pumps and is connected between J using 4 tetrafluoro hose of φ.
Based on upper-part, this programme uses 2 air pumps, and the inflatable mouth of preposition air pump is accessed in the front end of sensor, passes
The suction inlet of the rear end access postposition air pump of sensor.Preposition air pump maximum coutroi velocity is 500ml/min, postposition air pump maximum control
Flow velocity processed is 2L/min, and probe handle part uses the thin tracheae of 0.5mm, and prefilter buffer portion filters moisture and part is pierced
Swash property gas.Front and back air pump flow velocity is allowed to tend to balance by PWM adjusting, processing in this way can preferably avoid gas in sensor cavity body
The fluctuation of stream, allowing in sensor cavity body has smoothly detection environment (pressure difference reduction) relatively, has more to Instrument sensor
Stable response condition.Instrument is provided with air pump status real time monitor, and the damage of air pump is avoided to influence detection.Air-flow it is relatively steady
Surely it ensure that the consistency that environment is measured when each detection, the value of duplicate measurements can keep height consistent.This programme also utilizes
Integrated filter mode (average value filtering and sliding median filtering) cooperation DMA data processing, monitors sensor using status mechanism,
The micro process to infrared signal is increased in signal processing circuit design, shortens communication interval, enables infrared signal fast
Speed is converted to electric signal, improves sensor response speed, solves the problems, such as that universal infrared sensor reaction speed is slow in the market,
The detection accuracy of sensor is improved simultaneously.Using dynamic zero algorithm, instrument caused by severe detection environment is effectively avoided
False alarm probability.Using multiple spot calibration algorithm, the improvement of system internal calibration mode, the built-in calibration-free system of operating system is led to
The operation storage for crossing software, allows user that can calibrate this instrument at any time, is not necessarily to external referance leak or external equipment.Based on
The infrared leak detector of upper feature, this programme has substantive distinguishing features outstanding and significant progress compared to existing product.
The infrared leak detector of this programme is not limited to content disclosed in specific embodiment, the technology occurred in embodiment
Scheme can the understanding based on those skilled in the art and extend, those skilled in the art according to this programme combination common knowledge make
Simple replacement scheme out also belongs to the range of this programme.
Claims (10)
1. infrared leak detector, it is characterized in that including infrared signal sampler, the preposition processing module of infrared signal, infrared intelligent inspection
Interactive system is surveyed, the infrared signal sent by the infrared signal sampler is handled through the preposition processing module of the infrared signal
After send infrared intelligent detection interactive system to；The infrared signal sampler include the inlet duct being sequentially communicated,
Preposition air filtration buffer unit, front end air pump, infrared detecting device, postposition air-flow buffer device, postposition air pump, sample gas is in institute
It states under the action of front end air pump, postposition air pump successively by the inlet duct, preposition air filtration buffer unit, infrared detection dress
It sets, be discharged after postposition air-flow buffer device；The inlet duct includes the filter A being sequentially communicated, air-breathing probe assembly B, institute
Stating preposition air filtration buffer unit includes the filter C being sequentially communicated, buffering boundling pipeline D, the postposition air-flow buffer device packet
Include the buffering boundling pipeline G, electronic flowmeter H, pressure stabilizing boundling pipeline I being sequentially communicated；The infrared intelligent detects interactive system
Including touch chromatic liquid crystal screen, correspondence with foreign country port module, operator passes through the touch Color Liquid Crystal Display
Screen, correspondence with foreign country port module exchange information with infrared intelligent detection interactive system.
2. infrared leak detector according to claim 1, which is characterized in that the inside of the filter A is equipped with dust removal assembly,
The dust removal assembly includes several filtering net parts, is equipped with active carbon air filtration layer between the filtering net part, the dust removal assembly filters out
Dust particles in sample gas.
3. infrared leak detector according to claim 1, which is characterized in that the air-breathing probe assembly B includes air inlet tubule
Boundling, the air inlet tubule boundling include more air inlet tubules, and sample gas is sucked by the air inlet tubule boundling.
4. infrared leak detector according to claim 3, which is characterized in that the latus rectum of the air inlet tubule is 0.5mm.
5. infrared leak detector according to claim 1, which is characterized in that the inside of the filter C is equipped with dry component,
The dry component includes several filtering net parts, is equipped between the filtering net part and absorbs moisture substance, the dry component filters out
Moisture in sample gas.
6. infrared leak detector according to claim 1, which is characterized in that the buffering boundling pipeline D, buffering boundling pipeline
The inside of G is equipped with air-flow buffer column boundling, and the air-flow buffer column boundling includes the more gas being interspersed in runner
Buffering upright is flowed, the air-flow buffer column slows down the flow velocity of air-flow by changing the direction of air-flow.
7. infrared leak detector according to claim 1, which is characterized in that the pressure stabilizing boundling pipeline I includes degassing conduits
Boundling, the degassing conduits boundling include more degassing conduits, and sample gas after the degassing conduits boundling pressure stabilizing by being discharged.
8. infrared leak detector according to claim 1, which is characterized in that the infrared leak detector of high-precision further includes air pump
Status real time monitor device, the air pump status real time monitor device include air pump flow sensor, and the air pump state is real-time
Monitoring device triggers alarm signal according to the Traffic Anomaly information that the air pump flow sensor transmits.
9. infrared leak detector according to claim 1, which is characterized in that the preposition processing module of infrared signal includes red
External signal micro treatment module, integrated filter module, DMA data processing module, the integrated filter module includes average value filtering
Module, sliding medium filtering module, the infrared signal micro treatment module convert optical signals into after electric signal be sent to it is described
Integrated filter module, the signal after the integrated filter resume module are transmitted by the DMA data processing module.
10. infrared leak detector according to claim 1, which is characterized in that the infrared intelligent detection interactive system is also wrapped
Abnormal signal filtering module, external calibration module are included, is distorted letter caused by the abnormal signal filtering module shielding external environment
Number, operator adjusts the parameter setting of equipment by the external calibration module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566736.9A CN109253982A (en) | 2017-07-12 | 2017-07-12 | infrared leak detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566736.9A CN109253982A (en) | 2017-07-12 | 2017-07-12 | infrared leak detector |
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| CN109253982A true CN109253982A (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440853A (en) * | 2019-07-24 | 2019-11-12 | 沈阳工程学院 | A kind of monitoring dust pelletizing system |
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