CN105486743B - Rays safety detection apparatus and method - Google Patents
Rays safety detection apparatus and method Download PDFInfo
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- CN105486743B CN105486743B CN201511005824.9A CN201511005824A CN105486743B CN 105486743 B CN105486743 B CN 105486743B CN 201511005824 A CN201511005824 A CN 201511005824A CN 105486743 B CN105486743 B CN 105486743B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/622—Ion mobility spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/04—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- General Health & Medical Sciences (AREA)
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- Analysing Materials By The Use Of Radiation (AREA)
Abstract
A kind of method that the present invention is provided rays safety detection apparatus and checked using the equipment.Rays safety detection apparatus includes shell and the component for being placed in enclosure interior, and the component of enclosure interior includes: sampling system, and sampling system includes the sample collecting apparatus and transmission device for acquiring sample；Sample processing system；And detection system.Sample collecting apparatus includes sampling module and stretching structure.Sampling module includes multiple air-breathing thief hatch and multiple thermal current blow valve ports；Also, stretching structure is configured to carrying sampling module and makes corresponding expanding-contracting action for multiple air-breathing thief hatch and multiple thermal current blow valve ports close to the surface of article to be checked according to the shape of article to be checked.
Description
Technical field
The present invention relates to field of safety check, and in particular, to rays safety detection apparatus and the method checked using the equipment.
Background technique
Safety check for row packet etc. at present mainly uses X-ray transmission imaging technique, and transmission imaging technique is certain to having
The metal Checking on effect of shape is preferable, but undesirable to the effect of the inspection of drugs, liquid explosives etc..
The today's society of field of safety check, small-sized screening machine, article CT screening machine, packaging are widely used in radiography
Case checks that system is largely equipped.But it is even also only capable of pair using current state-of-the-art dual intensity or polyenergetic radiation imaging technique
Organic matter inorganic matter carries out appropriate differentiation, to accurately identifying there are also very big gap for substance, and the combination with Raman technology
It can not accomplish effective measurement in real time.The face battle array sampling detector for multifunctional that the present inventor applies early period is for static checked object energy
It is enough quickly and effectively to obtain sample and accurate qualitative analysis carried out to sample composition, but for mobile object and with
On refer to when being combined to the radiation imaging apparatus that mobile object is scanned, since two phases may be got simultaneously
" smell " of adjacent sweep object influences the accuracy of measurement；And due to largely having used sample introduction head, blow device to improve into
This, due to fast moving for object, the sample feeding head of blow device blowout is difficult to accurately obtain.
Summary of the invention
In consideration of it, the purpose of the present invention is to provide a kind of rays safety detection apparatus, including shell and the component for being placed in enclosure interior,
The component of enclosure interior includes:
Sampling system, sampling system include sample collecting apparatus for acquiring sample and to by tested object from the external world
It is sent to the transmission device in sample collecting apparatus at desired position；
Sample processing system, for concentrating sample and parsing sample；With
Detection system is used for test sample ingredient；
Wherein, sampling system, sample processing system and detection system are sequentially communicated by connector, so that being admitted to structure
The acquisition, processing and detection of sample are completed in shell at the intracorporal tested object of the shell in closed darkroom；It is characterized in that,
Sample collecting apparatus includes sampling module and stretching structure；Wherein, sampling module include multiple air-breathing thief hatch and
Multiple thermal current blow valve ports, multiple thermal current blow valve ports are configured to the air-flow of blowout set temperature, multiple air-breathing thief hatch configurations
To suck gas with sample under condition of negative pressure；Also, stretching structure is configured to carrying sampling module and according to object to be checked
The shape of product makes table of the corresponding expanding-contracting action by multiple air-breathing thief hatch and multiple thermal current blow valve ports close to article to be checked
Face.
According to an aspect of the present invention, a kind of method checked using rays safety detection apparatus article to be checked is provided, comprising:
Tested object is placed in transmission device, and is sent into rays safety detection apparatus by transmission device；Using such as aforementioned rays safety detection apparatus to quilt
Object is examined to implement to check.
Detailed description of the invention
Fig. 1 shows the schematic diagram of rays safety detection apparatus according to an embodiment of the invention；
Fig. 2 shows the schematic diagram of rays safety detection apparatus according to an embodiment of the invention, wherein stretching structure is by multiple suctions
Gas thief hatch and multiple thermal current blow valve ports are sent to the surface of article to be checked；
Fig. 3 shows multiple air-breathing thief hatch of rays safety detection apparatus according to an embodiment of the invention and multiple thermal currents are blown
Sweep the arrangement schematic diagram of mouth；
Fig. 4 shows the schematic cross-section of rays safety detection apparatus according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is provided referring in detail to example illustrates in the accompanying drawings, and identical number is complete in figure now
Portion represents identical element.To explain that the following embodiments of the present invention will be described with reference to attached drawing.
A kind of rays safety detection apparatus is provided according to one embodiment of present invention comprising the portion inside shell 102 and shell 102
Part, the component inside shell 102 includes: sampling system, and sampling system includes the sample collecting apparatus and use for acquiring sample
Tested object to be sent to the transmission device in sample collecting apparatus from desired position from the external world；Sample processing system is used
In concentrating sample and parsing sample；And detection system, it is used for test sample ingredient, such as pass through gas-chromatography-ion mobility spectrometry
Instrument 127 or individually 127 test sample ingredient of ionic migration spectrometer, as shown in Figure 1.
In the present embodiment, sampling system, sample processing system and detection system are sequentially communicated by connector, such as
It is connected to by pipeline 112, so that the tested object being admitted in the shell 102 of security check passage completes sample in shell 102
Acquisition, processing and detection.
In the present embodiment, sample collecting apparatus includes sampling module and stretching structure 107.Sampling module includes multiple suctions
Gas thief hatch 108 and multiple thermal current blow valve ports 109, multiple thermal current blow valve ports 109 are configured to the air-flow of blowout set temperature,
Multiple air-breathing thief hatch 108 are configured to suck gas with sample under condition of negative pressure.Multiple thermal current blow valve ports 109 can connect
Connect hot-fluid purge pump 110.Stretching structure 107 is configured to carrying sampling module and makes phase according to the shape of article 105 to be checked
The expanding-contracting action answered by multiple air-breathing thief hatch 108 and multiple thermal current blow valve ports 109 close to the surface of article 105 to be checked, such as
Shown in Fig. 2.
In one embodiment of the invention, stretching structure 107 is by corresponding expanding-contracting action by multiple air-breathing thief hatch
108 and multiple thermal current blow valve ports 109 close to the surface of article 105 to be checked, and these air-breathing thief hatch 108 and thermal current are blown
It sweeps mouth 109 and constitutes sampling channel, as shown in Fig. 2, tested object passes through sampling channel under the action of conveyer belt 104, and receive
It checks.For example, tested object is advanced through sampling channel with the speed of 0.1m/s, the short distance sample detection point of checking matter is completed
Analysis.
In an embodiment of the invention, as shown in figure 4, rays safety detection apparatus includes shell 102, conveyer belt 104 and lever
Separator 131.Conveyer belt 104 is used to article 105 to be checked being sent into rays safety detection apparatus from the arrival end of rays safety detection apparatus, send from outlet end
Rays safety detection apparatus out.Lever separator 131 is configured to stop latter article to be checked 105 when previous article to be checked passes through rays safety detection apparatus
Scheduled blocking duration.Shell can also include arrival end and the shielding curtain 130 of outlet end etc..
In one embodiment of the invention, multiple air-breathing thief hatch 108 may include filter structure, such as micropore filter
Net, to be filled into dust, soil, paper scrap or other undesired pollutants.Filter structure on air-breathing thief hatch 108 can be prevented
Only large particulate matter blocking or pollution pipeline in sampling process.
In one embodiment of the invention, rays safety detection apparatus further includes x-ray imaging system, is visited by setting L shape array
It surveys the detection of device 106 and transmission image is constructed by the X-ray of article 105 to be checked.X-ray imaging system can be existing common X
Radiation imaging system, the x-ray source 128 for example including transmitting X-ray, for detecting the L of the X-ray by article 105 to be checked
Shape detector array 106.One side x-ray imaging system can effectively detect the high atomic substance of such as cutter, gun
Etc. contrabands, and tentatively judge such as liquid and plastics contraband of low atomic number；On the other hand, x-ray imaging system is also
The appearance profile that can show article 105 to be checked, including horizontal and vertical profile, so that the positioning of auxiliary telescopic structure 107, makes
Stretching structure 107 is by multiple air-breathing thief hatch 108 and multiple thermal current blow valve ports 109 close to the surface of article 105 to be checked.Example
Such as, L shape detector array 106 may include horizontal component and vertical portion, and horizontal component can detect the width of inspected object
And length, vertical portion can detect the height and length of inspected object, pass through the detection knot of comprehensive L shape detector array 106
Fruit, it can be deduced that length, width and the height of article 105 to be checked, to provide the ruler of article 105 to be checked for stretching structure 107
Sampling channel is consequently formed in very little information, stretching structure 107.
In one embodiment, go out at beam window front end to be equipped with infrared sensor 129 for perceiving in x-ray source 128
Whether article 105 to be checked enters detection zone, detects X after article 105 to be checked enters detection zone just after infrared sensor 129
Radiographic source 128 go out beam, L shape detector array 106 detect across article 105 to be checked X-ray, through photoelectric conversion, A/D conversion with
And the cross section projection picture of article to be checked is formed after Digital Image Processing, with the movement of target, each of article to be checked is cut
Face is scanned consecutively, and can thus obtain from x-ray source to detector direction the entirely complete two-dimension projection of article to be checked
Picture.
In the actual operation process, x-ray imaging system emits X-ray and detects the X-ray for transmiting article 105 to be checked,
To obtain the appearance profile of image and article to be checked 105 inside article 105 to be checked.Stretching structure 107 is according to object to be checked
The appearance profile of product 105 has made corresponding expanding-contracting action, thus multiple air-breathing thief hatch 108 and multiple thermal current blow valve ports
109 are sent near the surface of article 105 to be checked, start test sample.In this checking process, object to be checked can be observed simultaneously
The expanding-contracting action of 105 inside inclusion of product and operation stretching structure 107, or even check sample entrained by article 105 to be checked.
It can be seen that the equipment of the present embodiment can comprehensively check article 105 to be checked, including physical inspection,
Such as it whether can directly display comprising prohibited items and violated chemical substance etc. such as cutter, explosives, and two inspections can
To carry out simultaneously, article 105 to be checked can be completed to check and sample, analyze during traveling, substantially increase the speed of safety check
Degree.X-ray imaging system may include x-ray source, L shape detector array and data processing and image display device, ability
Field technique personnel can obtain from existing equipment.On the one hand X-ray transmission scanning is completed, checking matter is on the other hand completed
The analysis of short distance sample detection.In one embodiment, checking matter can stop several seconds in inspection channel to check.
In one embodiment of the invention, stretching structure 107 may include multiple ripple gas bag units 107 ', wherein often
A ripple gas bag unit 107 ' realizes expanding-contracting action by inflation and exhaust.Multiple ripple gas bag units 107 ' combine structure
At stretching structure 107.Each ripple gas bag unit 107 ' can connect one or more air-breathing thief hatch 108, alternatively, can be with
One or more thermal current blow valve ports 109 are connected, thus in each ripple gas bag unit 107 ' according to the outside of article 105 to be checked
When profile telescopic moving, it can will be connected to the one or more air-breathing thief hatch 108 of corresponding ripple gas bag unit 107 '
Or one or more thermal current blow valve ports 109 are delivered near 105 surface of article to be checked.
In embodiments of the present invention, each ripple gas bag unit 107 ' connects a gas pipeline (in fig 1 and 2 with cross
It is schematically illustrated to vertical line).Optionally, each gas pipeline can be controlled individually.For example, each gas pipeline connection one
A air pump.In embodiments of the present invention, each gas pipeline can input gas, also can according to need exhaust.When output gas
When body, gas bag unit volume increases, to stretch forward；When gas pipeline pumping, balloon contraction.Gas bag unit can be wave
The form of line gas bag unit 107 ', ripple gas bag unit 107 ' itself can move in telescopic direction, such as along its longitudinal axis
Line direction is mobile；Also, ripple gas bag unit 107 ' has certain rigidity in the transverse direction in longitudinal axis direction, so that wave
Line gas bag unit 107 ' is able to maintain it and substantially moves back and forth in the direction of the longitudinal axis along straight line.
In embodiments of the present invention, each ripple gas bag unit 107 ' connects a gas pipeline, each gas pipeline gas
Capsule unit valve realizes the flexible of each gas bag unit for controlling inflation and the exhaust of corresponding ripple gas bag unit 107 '
Movement.Each gas bag unit valve can individually be controlled by controller, to control inflation and the pumping/row of each gas bag unit
Gas.In the present embodiment, one or more inflation aspiration pumps 111 can be set, connect with each ripple gas bag unit 107 '
Gas pipeline is connect with inflation aspiration pump 111, since gas bag unit valve is arranged, thus an inflation aspiration pump can only be arranged
111.It is similar, one or more inflator pumps can be set, each gas pipeline for inflation can be inflated with one or more
Air pump connection, the inflation and pumping of each gas bag unit are realized by the switching of gas bag unit valve, every so as to individually control
A gas bag unit stretches.
In one embodiment of the invention, the expanding-contracting action of stretching structure 107 can be based on being mounted on stretching structure 107
On distance of 107 front end of stretching structure apart from 105 surface of article to be checked of distance measuring sensor (not shown) measurement make.Example
Such as, in embodiment, each gas bag unit connects one or more hot gas blow valve ports 109 and one or more air-breathing thief hatch
108, while a distance measuring sensor is set, such as setting infrared sensor, ultrasonic sensor or laser sensor, these rangings
Sensor can measure distance of the gas bag unit front end apart from 105 surface of article to be checked, and be based on the distance controlling air bag list
Member is stretched.For example, distance measuring sensor is surveyed when the front end of gas bag unit is moved to the set distance on 105 surface of article to be checked
It measures the distance and meets set distance value, continue to forward extend out to issue the gas bag unit that instruction stops responding.It should be understood that
In one embodiment of the invention, x-ray imaging system and multiple distance measuring sensors can be set simultaneously.
In another embodiment of the invention, stretching structure 107 may include the telescopic unit of other forms.For example, stretching
Shrinking structure 107 transversely can be stretched out and be contracted along the bar unit of (paper) transverse shifting, each bar unit including multiple
It returns, and connects one or more air-breathing thief hatch 108 or one or more thermal current blow valve ports 109 on each bar unit, from
And when exterior contour telescopic moving of each bar unit according to article 105 to be checked, it can will be connected to corresponding bar list
It is attached that first one or more air-breathing thief hatch 108 or one or more thermal current blow valve ports 109 are delivered to 105 surface of article to be checked
Closely.
In one embodiment of the invention, multiple air-breathing thief hatch 108 and multiple thermal current blow valve ports 109 are in object to be checked
Front and back is arranged at array on the moving direction of product 105, if Fig. 3 shows a kind of form, so that in the direction of motion of article 105 to be checked
On, multiple hot-fluid blow valve ports 109 are arranged in multiple 108 upstreams of air-breathing thief hatch, and the opening side of multiple hot-fluid blow valve ports 109
To the direction of motion for being provided towards article 105 to be checked, the opening direction of multiple air-breathing thief hatch 108 is provided towards object to be checked
The opposite direction of the direction of motion of product 105.The array of the array of multiple air-breathing thief hatch 108 and multiple thermal current blow valve ports 109 it
Between spacing be arranged so as to move near multiple air-breathing thief hatch 108 after sample is left from examining object by purging.Such as
Shown in Fig. 3, air-breathing thief hatch 108 is blown towards article 105 to be checked, and the sample on article 105 to be checked is due to hot gas heating or gas
Body purges driving for active force and is detached from article 105 to be checked.These sample itselfs have certain speed (if article to be checked
105 if movement), the effect of purge gas is so that sample has lateral velocity and is detached from the speed of article 105 to be checked, i.e. sample
Product are mobile to close speed.The downstream of hot-fluid blow valve port 109 is arranged in air-breathing thief hatch 108, when the suitable blowing speeds of setting, and
And the suitable spacing of setting, the i.e. distance of hot-fluid blow valve port 109 and air-breathing thief hatch 108 apart from 105 surface of article to be checked, it can be with
So that sample is just moved towards air-breathing thief hatch 108, sampling is realized.
In one embodiment of the invention, multiple air-breathing thief hatch 108 and multiple thermal current blow valve ports 109 are in object to be checked
Front and back arranges that Fig. 3 shows row's air-breathing thief hatch 108 and a heat extraction air-flow blow valve port at array on the moving direction of product 105
109, however, it is possible to which another row's air-breathing thief hatch 108 and another heat extraction air-flow blow valve port 109 is arranged in upstream or downstream, improve
The accuracy of detection.
In one embodiment of the invention, can implement to check in 105 moving process of article to be checked.To ensure safety check
The effect that equipment traps sample and is enriched with, can slightly reduce the speed that conveyer belt 104 transmits tested target, acquire structure for sample
Positioning and Enrichment strive for enough time.It in another embodiment, can be real in the case where article 105 to be checked is static
Apply inspection.
In one embodiment of the invention, rays safety detection apparatus can also include separating device, be used for adjacent article to be checked
105 separate, and to ensure having certain spacing between adjacent checked object, and unlikely appearance samples crosstalk.Separating device includes
Single lever separating device is configured to stop the scheduled blocking duration of article 105 to be checked.Preferably, single lever separating device is to quilt
It examines when the blocking of object needed for a length of 0.1s or other.
In one embodiment of the invention, as shown in figure 4, rays safety detection apparatus further includes transmission device；Transmission device can be with
Including conveyer belt 104, enter for carrying article 105 to be checked from the arrival end of rays safety detection apparatus, from the outlet end of rays safety detection apparatus from
It opens.
In one embodiment of the invention, rays safety detection apparatus further includes control device (not shown).Control device can match
Control gas bag unit valve (not shown) is set to control the inflation and exhaust of gas bag unit.Control device can receive positioning dress
The ranging information set, and the movement of information control stretching structure 107 based on the received.Control device can receive distance measuring sensor
Information control stretching structure 107, such as the movement of each gas bag unit 107 '.
In one embodiment of the invention, the sample processing system of rays safety detection apparatus further includes the absorption for concentrating sample
Screen drum 119 and the piston rod 118 sent out for the sample in screen drum 119 will to be adsorbed by piston；With Thermal desorption chamber 121 is used for
The sample in absorption screen drum 119 is precipitated at high temperature, and is mixed using suitable carrier gasses with sample.Air-breathing thief hatch 108 will acquire
To sample send to pre-concentration sample absorber.
Detection system includes the bundling capillary pipe column 125 (MCC) and ion mobility spectrometry equipment 127 for pre-separation sample.
Bundling capillary pipe column 125 has the characteristics that small in size, column effect is high and separating rate is fast, when conventional capillaries column can be overcome to analyze
Between long (10~15 minutes) but also a bulky burner hearth is needed to realize that high temperature is difficult to meet the need of field quick detection
The problem of wanting.
According to an embodiment of the present invention, ion mobility spectrometry equipment is positive and negative double mode, is moved using positive and negative double mode ion
Moving spectrum equipment may be implemented the ion progress that positive-negative polarity substance is volatilized in tested row packet while on-line checking, compared to single mode
Formula switches without electric field, shortens detection duration, improves detection efficiency and resolution capability；In addition, the migration tube is using resistance to
The ceramic material of high temperature has greatly widened the range of detectable sample.
It wraps mixed gas with sample and is sent to the absorption screen drum 119 of pre-concentration sampling absorber and by the absorption in screen drum
Agent absorption.Sample acquisition connecting tube is coated with sample acquisition connecting tube heating and thermal insulation set, and heating and thermal insulation set can remain in pipe " high
Temperature ", effectively can prevent sample from polluting pipeline in in-tube condensation., it can be achieved that sample under the continuous action of sampling asepwirator pump 115
Enrichment concentration of the product in absorption screen drum 119.
After the completion of sample concentration, the piston rod 118 of piston type absorber will can adsorb rapidly screen drum under motor effect
119 are pushed into have in the Thermal desorption chamber 121 of high temperature, preferred Thermal desorption chamber 121 stainless steel or plating stable using chemical property
The production of ambrose alloy material.Preferably, pre-concentration sampling absorber includes two or more absorption screen drums 119, correspondingly, including it is multiple
Piston boit.
It is adsorbed in the Thermal desorption chamber 121 of sample at high temperature on the sorbent and is precipitated rapidly, and enter with from carrier gas
Brought into after mouthfuls 123 preheated carrier gas mixing flowed by carrier gas and carry out pre-separation in MCC column 125, after the completion of pre-separation again into
Enter and is tested and analyzed in double mode ion mobility spectrometry equipment.Using double mode Ion transfer Manifold technology, it can be achieved that positive and negative anodes
Property substance ion carry out simultaneously on-line checking, the detection efficiency and resolution capability of equipment device can be improved.
Preferably piston cylinder 117 adsorbs such as poly- the four of the difference of thermal coefficient used by 119 lower part mat insulation 120 of screen drum
Fluorine, PEEK material can effectively completely cut off the heat transfer between Thermal desorption chamber 121 and absorber in sample adsorption process, be conducive to
Sample absorption.
According to an embodiment of the present invention, acquire the connecting tube of sample using the stable fluorubber of metal or chemical property or
Polyfluortetraethylene pipe, tube wall are equipped with heating film and heat-preservation cotton, and sample acquisition connecting pipe is equal during the entire process of sample acquisition
It keeps higher temperature (60~250 DEG C), sample in sample collection process can be effectively prevented be condensate in inner wall of the pipe and cause sample
Product lose or pipeline pollution.
Thermal desorption chamber 121 be equipped with carrier gas shunt/purge interface 124, when sample introduction overload when, mixing sample gas can from from point
Stream/purging interface 124 is discharged；In addition, Thermal desorption chamber 121 can be purged by fully opening shunting/purging interface 124, can arrange
Intracavitary sample or impurity out can effectively reduce the appearance of ghost peak during sub-sampling.It is sealed in Thermal desorption chamber 121 simultaneously
Be embedded in the stable glass bushing pipe 122 of chemical property, bushing pipe 122 can regularly replace, on the one hand can guarantee sample gas not with metal material
Material contact, reaction and the thus distortion of caused test sample and detection signal, on the other hand can also stop large particulate matter to fall
Enter chromatographic column and blocks chromatographic column.
According to an embodiment of the invention, high temperature resistant shape sealing ring 116 can effectively guarantee in sampling and sample introduction resolving
Sealed connection between piston type absorber and piston cylinder 117 can ensure that sample collecting efficiency and sample introduction analyzing efficiency.Thermally conductive shield
126 one side are covered for protecting MCC, are on the other hand also provided and Thermal desorption chamber 121, double mode ion mobility spectrometry equipment for MCC
Between the sealed interface that connects, while also helping external heating and thermal insulation circuit and heating and thermal insulation carried out to MCC.It is pushed to sample
When Thermal desorption chamber 121 carries out Thermal desorption, conveyer belt 104 works, and previous tested row packet (A) is sent out from detector gate outlet,
Another, which is detected row packet (B), enters shell 102 from 104 inlet of conveyer belt again simultaneously, to row packet just completely into shell
When 102 inside, start to sample, so the full-time collection and detection of the multiple inspected objects of circulation realization.
It is described below according to an embodiment of the invention, the method checked using rays safety detection apparatus tested object.Method
Generally include sample acquisition step, sample handling procedure and sample detection step.
It is sample acquisition first.Tested row packet is placed on the conveyer belt 104 of rays safety detection apparatus, i.e. lever front-rear position,
Tested luggage is sent to darkroom by conveyer belt 104, and wherein lever hinders and the time for article 105 to be checked of letting pass can be 0.1 second.
Infrared induction probe can be increased and incude whether article 105 to be checked enters tested region.
X-ray imaging system obtains the internal image and appearance profile of article 105 to be checked, and operator is checking object to be checked
While 105 inside of product, control device can receive the location information between the probe of distance measuring sensor and checking matter, and control
The movement of stretching structure 107 makes stretching structure 107 reach predetermined position, is sampled detection.
For example, the inflation aspiration pump 111 that starting is connect with extension airbag unit, control device is according to the object to be checked detected
Flexible, the adjustment sampled distance of the appearance profile control gas bag unit of product 105.For example, can also be detected by x-ray imaging system
Article to be checked 105 appearance profile auxiliary positioning, adjust sampled distance.The object to be checked that can also be detected by distance measuring sensor
Flexible, the adjustment sampled distance of the appearance profile control gas bag unit of product 105.
Multiple thermal current blow valve ports 109 and multiple air-breathing thief hatch 108, which are started to work, acquires sample.Adherency, which is expert at, wraps surface
Solid granule shape sample or row packet in the volatile material carried secretly the gas that volatilizees/release it is collected, and from warp
The sampling conduit of heating and thermal insulation is equipped in the full-time pre-concentration adsorbent chamber of piston type of adsorbent by the sucking of sampling asepwirator pump 115 and is carried out
The full-time interleaved collection of achievable sample is used alternatingly in sample absorption, two piston type absorbers, and sampling asepwirator pump 115 is persistently inhaled
Gas, which samples, can be achieved sample concentration.After sample acquires, stretching structure 107 shrinks away from article 105 to be checked.
There is the absorption screen drum 119 of sample to be pushed into rapidly in Thermal desorption chamber 121 the even concentration of absorption on piston type absorber,
The sample of absorption on the sorbent is precipitated rapidly under high temperature action, and the sample of precipitation flows into analytically bottom of chamber portion and through pre-
The chromatography carrier gas of heat mixes rapidly and brings analysis detection part (MCC and IMS) by carrier gas, completes parsing sample introduction.
The Thermal desorption chamber 121 and above-mentioned pipeline heating system are all made of temperature programming mode, can effectively reduce
Power consumption.When parsing sample introduction, the one of piston type absorber for adsorbing and sample being concentrated of motor driven is from piston cylinder 117
It is pushed into have in the Thermal desorption chamber 121 of high temperature rapidly, while driving another piston type absorption for having parsed sample introduction and having completed detection
Device is extracted, and prepares that the sample adsorbent of next tested row packet is concentrated.It is adsorbed on the piston type for being pushed into Thermal desorption chamber 121 rapidly
Sample on absorber is precipitated by moment under the high temperature conditions, and mixes with the carrier gas flowed into from 121 bottom of Thermal desorption chamber, then
It is brought into chromatographic column and carries out pre-separation, then detected to IMS.
Double mode IMS test sample ion, and compared automatically with sample library.When the sample detected belongs to unauthorized substances
When, it sends warning signal.
Although specifically illustrating and describing the present invention, the common skill in this field by reference to exemplary embodiments of the invention
Art personnel should be appreciated that in the case where not departing from the spirit and scope of the present invention as defined in the appended claims, can be right
These embodiments carry out a variety of changes in form and details.
Claims (16)
1. a kind of rays safety detection apparatus, including shell and with lower component:
Sampling system, sampling system include sample collecting apparatus for acquiring sample and to transmit tested object from the external world
Transmission device in sample collecting apparatus at desired position；
Sample processing system, for concentrating sample and parsing sample；With
Detection system is used for test sample ingredient；
Wherein, sampling system, sample processing system and detection system are sequentially communicated by connector, so that being admitted in shell
Tested object the acquisition, processing and detection of sample are completed in shell；It is characterized in that,
Sample collecting apparatus includes sampling module and stretching structure；Wherein, sampling module includes multiple air-breathing thief hatch and multiple
Thermal current blow valve port, multiple thermal current blow valve ports are configured to the air-flow of blowout set temperature, and multiple air-breathing thief hatch are configured to
Gas with sample is sucked under condition of negative pressure；Also, stretching structure is configured to carrying sampling module and according to article to be checked
Shape makes corresponding expanding-contracting action for multiple air-breathing thief hatch and multiple thermal current blow valve ports close to the surface of article to be checked；
The sample collection cartridge of the sample processing system, detection system and sampling system is setting in enclosure interior, the sampling
The transmission device of system is at least partially situated at enclosure interior.
2. rays safety detection apparatus as described in claim 1, wherein stretching structure is sampled multiple air-breathings by corresponding expanding-contracting action
Mouth and multiple thermal current blow valve ports constitute sampling channel close to the surface of article to be checked, and checking matter body can be described in
Sampling channel is sampled analysis.
3. rays safety detection apparatus as described in claim 1, wherein stretching structure includes multiple ripple gas bag units, wherein each ripple
Gas bag unit realizes expanding-contracting action by inflation and exhaust, thus the one or more that will be connected to each ripple gas bag unit
Air-breathing thief hatch or one or more thermal current blow valve ports are delivered near article surface to be checked.
Further include x-ray imaging system 4. rays safety detection apparatus as described in claim 1, imaging system include X-ray emitter and
L shape detector array detects the X-ray after being projected through article to be checked by setting L shape detector array and constructs projected image,
Wherein L shape detector array can detect length, width and the height of article to be checked；
Wherein stretching structure can make corresponding expanding-contracting action for multiple suctions according to the projected image that L shape detector array constructs
Gas thief hatch and multiple thermal current blow valve ports are close to the surface of article to be checked.
5. rays safety detection apparatus as claimed in claim 3 is configured to wherein distance measuring sensor is arranged in each ripple gas bag unit front end
Measure distance of the corresponding ripple gas bag unit front end apart from article surface to be checked, thus ripple gas bag unit front end distance to
The distance of inspection article surface stops the movement of corresponding ripple gas bag unit when meeting set distance value, closely taken with realizing
Sample.
6. rays safety detection apparatus as claimed in claim 3, wherein gas bag unit valve is arranged in each ripple gas bag unit, for controlling phase
The inflation of the ripple gas bag unit answered and exhaust are to realize the expanding-contracting action of each ripple gas bag unit.
7. rays safety detection apparatus as described in claim 1, plurality of air-breathing thief hatch and multiple thermal current blow valve ports are in object to be checked
Front and back is arranged at array on the moving direction of product, so that in the direction of motion of article to be checked, multiple thermal current blow valve port settings
Opening direction in multiple air-breathing thief hatch upstream, and multiple thermal current blow valve ports is provided towards the movement side of article to be checked
To the opening direction of multiple air-breathing thief hatch is provided towards the opposite direction of the direction of motion of article to be checked, to sample.
8. rays safety detection apparatus as claimed in claim 7, the array of plurality of air-breathing thief hatch and multiple thermal current blow valve ports
Spacing between array is arranged so as to move near multiple air-breathing thief hatch after sample is left from examining object by purging.
9. rays safety detection apparatus as described in claim 1 further includes separating device, for adjacent article to be checked to be separated.
10. rays safety detection apparatus as claimed in claim 9, wherein separating device includes single lever separator, in previous article to be checked
Stop latter article to be checked scheduled blocking duration when passing through rays safety detection apparatus.
11. rays safety detection apparatus as claimed in claim 2, wherein sampling module includes each mistake for being mounted on multiple air-breathing thief hatch
Structure is filtered, for preventing the pipeline that bulky grain blocks or pollution is connect with multiple air-breathing thief hatch.
12. rays safety detection apparatus as described in claim 1, wherein transmission device includes conveyer belt, for carrying article to be checked from peace
The arrival end for examining equipment enters, and leaves from the outlet end of rays safety detection apparatus.
13. rays safety detection apparatus as claimed in claim 6 further includes control device, control gas bag unit valve is configured to control
The inflation and exhaust of ripple gas bag unit.
14. rays safety detection apparatus as described in claim 1, sample processing system includes pre-concentration sampling absorber, including for dense
The absorption screen drum of contracting sample and for by adsorb screen drum in sample sent by piston to the piston rod of Thermal desorption chamber；With
Thermal desorption chamber, the sample for being precipitated in absorption screen drum at high temperature, and mixed using suitable carrier gasses with sample；
Wherein, collected sample is sent to pre-concentration and samples absorber by air-breathing thief hatch.
15. rays safety detection apparatus as described in claim 1, detection system includes the bundling capillary pipe column for pre-separation sample, and
Ion mobility spectrometry equipment.
16. a kind of method checked using rays safety detection apparatus article to be checked, comprising:
Tested object is placed in transmission device, and is sent into rays safety detection apparatus by transmission device；
Tested object is implemented to check using the rays safety detection apparatus as described in any one of claim 1-15.
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| CN201511005824.9A CN105486743B (en) | 2015-12-29 | 2015-12-29 | Rays safety detection apparatus and method |
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| CN201511005824.9A CN105486743B (en) | 2015-12-29 | 2015-12-29 | Rays safety detection apparatus and method |
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| CN110200328B (en) * | 2019-06-26 | 2023-08-01 | 惠州市新泓威科技有限公司 | Preheating method of electronic cigarette |
| CN111781311A (en) * | 2020-07-21 | 2020-10-16 | 北京首都机场航空安保有限公司 | TATP security inspection device |
| CN115493895A (en) * | 2021-06-17 | 2022-12-20 | 苏州微木智能系统有限公司 | Sampling device for detection system, detection system and sampling method |
| CN114034724B (en) * | 2021-10-18 | 2024-02-09 | 苏州微木智能系统有限公司 | Full-automatic detection system and method |
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| US7997119B2 (en) * | 2006-04-18 | 2011-08-16 | Excellims Corporation | Chemical sampling and multi-function detection methods and apparatus |
| CN101644686B (en) * | 2008-08-08 | 2013-07-24 | 李海洋 | United on-line detector for explosive and poison and application thereof |
| US8561486B2 (en) * | 2009-07-13 | 2013-10-22 | Enertechnix, Inc | Particle interrogation devices and methods |
| CN103293561B (en) * | 2013-06-06 | 2015-07-22 | 刘静 | Passenger and luggage safety inspection system for station |
| CN104517799B (en) * | 2014-12-31 | 2017-09-15 | 同方威视技术股份有限公司 | detection device and detection method |
| CN104483423B (en) * | 2014-12-31 | 2016-03-09 | 同方威视技术股份有限公司 | Sample collection and thermal desorption sampling device and method and trace detection equipment |
| CN205263028U (en) * | 2015-12-29 | 2016-05-25 | 同方威视技术股份有限公司 | Security installations |
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