CN105203692B - Rays safety detection apparatus, the sampling apparatus of rays safety detection apparatus, safety inspection method and the method for sampling - Google Patents
Rays safety detection apparatus, the sampling apparatus of rays safety detection apparatus, safety inspection method and the method for sampling Download PDFInfo
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- CN105203692B CN105203692B CN201510673716.2A CN201510673716A CN105203692B CN 105203692 B CN105203692 B CN 105203692B CN 201510673716 A CN201510673716 A CN 201510673716A CN 105203692 B CN105203692 B CN 105203692B
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Abstract
The present invention provides a kind of rays safety detection apparatus, sampling apparatus, safety inspection method and the method for sampling.Rays safety detection apparatus includes: sampling apparatus, and the sampling apparatus has sampling face, and multiple blow valve ports for sucking multiple suction inlets of the sample particle of tested target and for blowing out air-flow are arranged in sampling face；Pretreatment unit and, detection device.Sampling apparatus is by sample delivery to pretreatment unit, and pretreatment unit is by pretreated sample delivery to detection device.Equipment of the invention can be convenient close to tested target examinations, and tested object tape will not be damaged or uncomfortable, and while a tested destination sample, the sample acquired from previous tested target is analyzed, it is high-efficient.
Description
Technical field
The present invention relates to safety testing fields, and in particular, to rays safety detection apparatus, the sampling apparatus of rays safety detection apparatus, safety check side
Method and the method for sampling.
Background technique
Make rapid progress in science and technology, economic globalization deepens continuously the today's society of development, the attack of terrorism, food peace
Entirely, the social concerns such as medical and health safety, drug smuggling seriously affect and threaten the life, property and health peace of people
Entirely.To safeguard normal civil order, the life of the people, property, healthy and safe is ensured, in recent years based on various detections originals
The detection technique and its relevant device of reason flourish like the mushrooms after rain.
Wherein, ion mobility spectrometry (IMS) technology is because of simple, the high sensitivity that has structure, analyze fireballing feature and by
It is widely used in the detection or monitoring of chemical warfare agent, drugs, explosive and environment etc..
Due to IMS superior performance, the various equipment based on IMS technology and its joint technology are also gradually in food, cosmetics
It just comes onto stage with detection fields such as medical and health.Gas-chromatography-ion mobility spectrometry (GC-IMS) joint technology takes full advantage of GC
Separation characteristic and IMS quick response outstanding, highly sensitive advantage, not only efficiently solve the low distinguishing ability of GC and IMS
Existing cross sensitivity problem when being detected to mixture, but also chromatographic retention can be obtained, checking matter ion exists
The signal strength of drift time and analyte in the migration tube final induction on Faraday plate, the checking matter obtained with this
Three-dimensional profile information effectively the sample of complicated component accurately can be differentiated.In following fight against terrorism and violence, drugs
Smuggling, environmental monitoring, food safety, the fields GC-IMS detection technique such as medical and health supervision will play powerful effectiveness.
However, individually the main of IMS uses cleaning sampling Thermal desorption and directly takes object Thermal desorption.The former is suitable only for table
Face contaminating material is sampled, and is not suitable for directly sampling volatility, half volatile substance, and the latter can then destroy by sample
Product.And individual GC, shunting/Splitless injecting samples are generally used for fluid sample, sample needs to carry out complicated pre-treatment, no
It is suitble to the fast inspection in scene.
It is expected that IMS or its product for being combined equipment acquire the high-efficient of sample, acquisition speed is fast, in the feelings for guaranteeing accuracy
Do not have to destructive sampling under condition, live fast inspection can be realized in the case where not unpacking；Also, expect in occasions such as existing critical points
Can have the characteristic of detection chemical aspect and the device that detection efficiency is high.
Summary of the invention
In consideration of it, the purpose of the present invention is to provide a kind of rays safety detection apparatus can solve the above problem at least partly, energy
It is enough quickly, without destructive sampling to carry out site inspection in the case where guaranteeing accuracy.
According to an aspect of the present invention, a kind of rays safety detection apparatus is provided, comprising: sampling apparatus, the sampling apparatus have sampling
Face is arranged for sucking multiple suction inlets of the sample particle of tested target in sampling face and blows for blowing out the multiple of air-flow
Sweep mouth；Pretreatment unit, for absorption and concentrating sample；And detection device, it is used for test sample property, wherein sampling cartridge
It sets sample delivery to pretreatment unit, pretreatment unit is by pretreated sample delivery to detection device.
According to an aspect of the present invention, a kind of sampling apparatus for rays safety detection apparatus is provided, the sampling apparatus has sampling
Face is arranged for sucking multiple suction inlets of the sample particle of tested target in sampling face and blows for blowing out the multiple of air-flow
Sweep mouth, wherein sampling apparatus is by the subsequent processing unit of sample delivery to rays safety detection apparatus.
According to an aspect of the present invention, a kind of safety inspection method is provided, wherein implementing safety check using rays safety detection apparatus as the aforementioned.
According to an aspect of the present invention, a kind of method of sampling is provided, is sampled using aforementioned sample device.
Rays safety detection apparatus of the invention can be convenient close to tested target examinations, do not need other and grasped such as scraping
Make, and damage or discomfort will not be brought to tested target (people), and while a tested destination sample, to from previous
The sample of tested target acquisition is analyzed, high-efficient.
Detailed description of the invention
In order to be more easily understood content of the present invention, with reference to the accompanying drawing and specific implementation method is the present invention
It further describes, in the accompanying drawings:
Fig. 1 is the perspective illustration of the rays safety detection apparatus of one embodiment of the invention；
Fig. 2 is the blow valve port of the sampling apparatus of one embodiment of the invention and the arrangement schematic diagram of suction inlet；
Fig. 3 is the arrangement schematic diagram of the blow valve port and suction inlet in the sampling face of one embodiment of the invention；
Fig. 4 is the arrangement schematic diagram of the blow valve port and suction inlet in the sampling face of one embodiment of the invention；
Fig. 5 is the sectional view of gas curtain guide body according to an embodiment of the invention；
Fig. 6 is the sectional view of cyclone getter device according to an embodiment of the invention.
Description of symbols in Fig. 1:
101 array suction inlets；
102 array blow valve ports；
103 connecting pipes；
104 gassing pipes；
105 asepwirator pumps；
106 inflator pumps；
107 acquisition interfaces；
108 air-breathing pump interfaces；
109 high temperature resistant O-ring seals；
110 piston cylinders；
111 piston rods；
112 absorption screen drums；
113 mat insulations；
114 Thermal desorption chambers；
115 glass bushing pipes；
116 carrier gas inlets；
117 shuntings/purging interface；
118 MCC columns；
119 double mode ionic migration spectrometers；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.In the description, identical appended drawing reference indicates identical component.Following ginsengs
It is intended to explain present general inventive concept of the invention according to explanation of the attached drawing to embodiment of the present invention, and is not construed as
Limitation of the invention.
In addition, in the following detailed description, to elaborate many concrete details to provide to the disclosure convenient for explaining
The comprehensive understanding of the embodiment of content.It should be apparent, however, that one or more embodiments are without these specific details
It can also be carried out.In other cases, well known construction and device is diagrammatically embodied to simplify attached drawing.
According to one embodiment of present invention, a kind of rays safety detection apparatus, comprising: sampling apparatus 10, the sampling apparatus 10a tool
There is sampling face 100, is arranged in sampling face 100 for sucking multiple suction inlets 101 of the sample of tested target and for blowing out
Multiple blow valve ports 102 of air-flow；Pretreatment unit 20a, for absorption and concentrating sample；And detection device 30a, for examining
Sample property, wherein for sampling apparatus 10 by sample delivery to pretreatment unit, pretreatment unit is defeated by pretreated sample
It send to detection device.
According to one embodiment of present invention, the multiple blow valve port 102 and the multiple suction inlet 101 are respectively with array
Form be arranged in sampling face 100, and 102 array of the multiple blow valve port and 101 array of the multiple suction inlet alternating
In the sampling face of being arranged in 100.In one embodiment of invention, the multiple blow valve port 102 and the multiple suction inlet 101 divide
It is not arranged in sampling face 100 in an array manner, and 102 array of the multiple blow valve port is to be embedded in the multiple sucking
Form in the interval of 101 arrays of mouth is arranged in sampling face 100.
According in one embodiment of invention, the multiple blow valve port 102 and the multiple suction inlet 101 are configured to
Simultaneously or alternately operate.
In one embodiment of the invention, multiple blow valve ports 102 and multiple suction inlets 101 can be arranged as shown in Figure 2,
Multiple blow valve ports 102 and multiple suction inlets 101 are arranged in column (row), and the column of the column of blow valve port 102 and suction inlet 101 replace
Arrangement.Indicate that blow valve port 102, ellipse indicate suction inlet 101 with circle in figure.However, blow valve port 102 can be ellipse,
Suction inlet 101 can be circle or they are identical shape or other shapes, in 102 table of this suction inlet 101 and blow valve port
The shape for being shown as different can be convenient differentiation.In another embodiment of the present invention, multiple blow valve ports 102 and multiple suction inlets
101 can be arranged to the alternant of a column blow valve port 102+ two column or multiple row suction inlet 101.
In one embodiment of the invention, multiple blow valve ports 102 and multiple suction inlets 101 can be arranged as shown in Figure 3.
Each blow valve port 102 is adjacent to each suction inlet 102.This also can be regarded as multiple blow valve ports 102 being embedded into multiple suction inlets
In 101.Blow valve port 102, ellipse representation suction inlet 101, however it is to be noted that single blow valve port 102 are indicated with circle in figure
It can be ellipse, single suction inlet 101 can be circle or they are identical shape or other shapes, inhale here
Entrance 101 and blow valve port 102 can be convenient differentiation with different shape representations.
In one embodiment of the invention, multiple blow valve ports 102 and multiple suction inlets 101 can be arranged as shown in Figure 4,
Multiple blow valve ports 102 are arranged in a circular formation in periphery, and multiple suction inlets 101 are arranged in a circular formation in inner ring.In another embodiment, more
A blow valve port 102 can be arranged in inner ring, and multiple suction inlets 101 can be arranged in periphery.It is arranged so multiple blow valve ports and suction
Entrance is advantageous, when the blow valve port 102 arranged in inner ring sprays gas to the checked property of object or luggage etc, for example (,) it is hot
When air, sample is blown off or heated gas heats up and is detached from into air, and the suction inlet 101 of outer ring is rapid by sample
Sucking, practical operation prove that such arrangement brings good collection effect.In another embodiment, multiple blow valve ports 102 can
To be arranged in periphery with other shapes, such as the form of quadrangle, multiple suction inlets are arranged in the figure that multiple blow valve ports 102 are constituted
In the range of case.In one embodiment of invention, at least partly setting filter of the multiple suction inlet 101, for hindering
Only big particle enters in suction inlet 101.
In one embodiment of invention, sampling apparatus 10 is connected to pretreatment by pluggable connecting pipe 103
Device.Such as sampling apparatus 10 passes through the pluggable connecting pipe 103 with buckle and is connected to pretreatment unit.Such as sampling cartridge
It sets 10 and pretreatment unit is connected to by the pluggable connecting pipe 103 with tight fit interface.The connecting pipe 103 includes
Temperature regulating device 1031, for maintaining required temperature to make gas or sample by connecting pipe 103 in connecting pipe 103
Temperature be increased to predetermined temperature, temperature regulating device 1031 includes that insulating layer, heater and sensor are (thick with black in Fig. 1
Line indicates), heater can be thin film heater, be also possible to heating wire；Sensor can be thin film sensor, be conducive to connect
Connect pipe deforming.In one embodiment of invention, connecting pipe 103 includes (such as connecting for the intake line of suction inlet 101
It is not separately shown in adapter tube road 103) and for blow valve port 102 gassing pipe 104.Drying can be placed in connecting pipe 103
Agent, for removing the moisture in sample and hot-air.
In one embodiment of invention, sampling apparatus 10 further includes sampling asepwirator pump 105, for example, by the connection
Intake line in pipeline 103 is connected to formation sampling access with pretreatment unit and suction inlet 101, in suction inlet 101
Place forms negative pressure sucking sample, and subsequent sample is adsorbed at pretreatment unit.
In one embodiment of invention, sampling apparatus 10 further includes inflator pump 106, and the inflator pump 106 is configured to lead to
Gassing pipe 104 is crossed to blow out gas from blow valve port 102 or blow out gas from pretreatment unit.Gassing pipe 104 can be
The pipeline being separately provided, with heating function, so that being heated to form thermal current by the gas of gassing pipe 104.One
In a embodiment, on the wall of gassing pipe 104 or heater strip 1041 flexible is arranged in pars intramuralis, by the heating of heater strip and
Radiation effects, temperature increases in gassing pipe 104.
The inflator pump 106 can be for example, by the gassing pipe 104 that is arranged in connecting pipe 103 and array blow valve port
102 connections, when sampling, inflator pump 106 is inflated, and gas is heated to form thermal current in gassing pipe 104, and hot gas flows through blow valve port
102 pairs of tested target surfaces purge, so that the quick volatilization of the volatile material in tested target, is detected target surface
Contaminant raises.Since thermal current accelerates to hide the quick volatilization being detected volatile sample in target, auxiliary can be played
The effect of sample acquisition.
In one embodiment of invention, pretreatment unit includes full-time pre-concentration absorber comprising first piston formula
Adsorption Concentration device and second piston formula Adsorption Concentration device, wherein the intake line and gassing pipe 104 of connecting pipe 103 is by cutting
Changing device is respectively connected to either one or two of first piston formula Adsorption Concentration device and second piston formula Adsorption Concentration device, so that sucking
Sample is sent into a period in first piston formula Adsorption Concentration device and second piston formula Adsorption Concentration device, first piston by pipeline
Another in formula Adsorption Concentration device and second piston formula Adsorption Concentration device carries out the parsing of sample.Gassing pipe 104 can be right
In first piston formula Adsorption Concentration device and second piston formula Adsorption Concentration device one blow so as to clean remove piston type absorption it is dense
Sample on contracting device.That is, the gassing pipe 104 connecting with blower pump both can connect to the blow valve port in sampling face 100
102, it also can connect to piston type Adsorption Concentration device.In one embodiment of invention, detection device include gas-chromatography-from
Sub- mobility spectrometer (GC-IMS).
In the rays safety detection apparatus of one embodiment of invention, when in tested gtoal setting the embodiment of the present invention with GC-
When sampling face 100 for being equipped with planar array type suction inlet 101 and planar array type hot-fluid blow valve port 102 of the rays safety detection apparatus for IMS, open
Rays safety detection apparatus, the switch for connecting the temperature regulating device 1031 of inflator pump 106 and asepwirator pump 105 and interface channel are started to work.Such as
Shown in Fig. 1, clean air is blown after flowing through the heating of the gassing pipe 104 with heating and heat preserving function from planar array type blow valve port 102
Out, and to tested target surface it purging, the purging of stream of hot air can raise the little particle for being adhered to tested target surface,
It can also accelerate volatilizable and effumability article volatilization in tested target；Planar array type suction inlet 101 is inhaled in sampling at the same time
The lower air-breathing sampling of the effect of sucking of air pump 105, the little particle sample for being adhered to tested target surface or being raised by hot-fluid, also
Suction of the gaseous sample that effumability that tested target internal is hidden, half volatile article evaporate in sampling asepwirator pump 105
The lower entering surface battle array suction inlet 101 of the effect of sucking.Sample connects after through the connecting pipe 103 with heating and heat preserving function, sample acquisition
Mouth 107 reaches absorption screen drum 110 (room temperature) and is adsorbed by the adsorbent in screen drum.
In Fig. 1, gassing pipe 104 and intake line are placed separately.In another embodiment of the invention, suction line
Road and gassing pipe 104 are integrated in connecting pipe 103, are conducive to plug.Connecting pipe 103 includes temperature regulating device 1031,
Temperature regulating device 1031 includes insulating layer, heater and sensor (not shown), the temperature regulating device 1031 of connecting pipe 103
For maintaining required temperature to be increased to by the gas of connecting pipe 103 or the temperature of sample in connecting pipe 103
Predetermined temperature.In another embodiment of the invention, connecting pipe 103 can only include the heater wrapped up outside pipeline and heat preservation
Layer controls the temperature in connecting pipe 103 in rough higher temperature.Suitable temperature can be effectively in connecting pipe 103
Preventing sample from condensing in pipeline causes pipeline to pollute.In one embodiment of the invention, connecting pipe 103 is flexible,
It is mobile relative to pretreatment unit that this is conducive to sampling apparatus 10.
, it can be achieved that checking matter sample is in piston type Adsorption Concentration device under the lasting getter action of sampling asepwirator pump 105
Adsorb the enrichment in screen drum 112.After the completion of sample concentration, the piston rod 111 of piston type Adsorption Concentration device can be made in motor drive
It is pushed into the high temperature pyrolysis analysis chamber 114 of heated heat preservation with the lower screen drum 112 that will adsorb rapidly.
In Fig. 1, for example, the piston type Adsorption Concentration device on the left side and intake line connection, the gas containing sample of sucking
Body is adsorbed by Adsorption Concentration device, sample, and air is discharged after being filtered.As shown in Figure 1, the piston type Adsorption Concentration device on the left side
Thermal desorption chamber 114 is left, the piston type Adsorption Concentration device on the right enters Thermal desorption chamber 114.The outlet of intake line and gas blow pipe
The outlet in road 104 can switch between the Adsorption Concentration device of the right and left.When the outlet of intake line and the piston type on the left side
When Adsorption Concentration device is connected to, the piston type Adsorption Concentration device on the right, which enters in parsing chamber, parses sample, and it is pre- to improve sample as a result,
The efficiency of processing.For example, the sample parsing for parsing a upper tested target can be started during the acquisition of the sample of tested target
And subsequent analysis.
Preferably, Thermal desorption chamber is used using the stable stainless steel of chemical property or nickel-plated copper material production, Thermal desorption chamber
Temperature programming.The sample being adsorbed on the sorbent is intracavitary by high-temperature heating precipitation rapidly in Thermal desorption.The sample of precipitation can be with
It is mixed with the preheated carrier gas flowed into from carrier gas inlet 116, and is brought by carrier gas and carry out pre-separation in MCC column 118, through separating
Sample each component afterwards, which sequentially enters, is tested and analyzed that (wherein sample detection can be on-demand in double mode ionic migration spectrometer 119
It asks and the multiple sampling analysis of turn-over is carried out to tested target).Preferred piston cylinder 110, absorption screen drum lower part mat insulation 113, which uses, leads
The low material of hot coefficient, such as polytetrafluoro, PEEK.Mat insulation 113 can effectively completely cut off the Thermal desorption chamber 114 in sample adsorption process
Heat transfer between absorber is conducive to sample absorption.Thermal desorption chamber 114 is equipped with carrier gas and shunts/purge interface 117, shunts/blows
Thermal desorption chamber 114 can be purged by sweeping interface 117, purge the waste sample and impurity that can be discharged in Thermal desorption chamber 114, can be effective
The appearance of ghost peak when avoiding sub-sampling.The stable glass bushing pipe 115 of sealing insertion chemical property, glass in Thermal desorption chamber 114
Glass bushing pipe 115 can regularly replace, and bushing pipe can be effectively reduced test sample and detect the distortion of signal, on the other hand can also stop big
Particulate matter falls into chromatographic column and blocks chromatographic column.In sampling and sample introduction resolving, high temperature resistant O-ring seals 109 can be effective
The sealed connection guaranteed between piston type absorber and piston cylinder 110, can ensure that the sample of acquisition does not lose.Thermally conductive sheath one
Aspect for protecting MCC column 118, on the other hand also for MCC provide with Thermal desorption chamber 114, double mode ionic migration spectrometer 119 it
Between the sealed interface that connects, while also helping external heating and thermal insulation circuit and heating and thermal insulation carried out to MCC.When handle is detected from previous
When institute's sample thief is pushed into Thermal desorption chamber progress Thermal desorption on object, next checking matter can be subjected to sample acquisition close to safety check instrument, such as
This circulation realizes the full-time sample collection and detection of multiple tested targets.A kind of sample acquisition of the embodiment of the present invention, concentration, solution
Analysis sampling device has continued to use full-time pre-concentration sampling technique, and hot-fluid is assisted to purge, so that sampling efficiency is higher；And it is of the invention
One of embodiment then has both small in size, sampling efficiency height, clever lightness height, detection speed based on the trace rays safety detection apparatus of GC-IMS
Fast feature is spent, it can be not only used for can also be used for carrying out safety check to luggage and articles to people, and also facilitate and is combined with other detection techniques,
It is highly suitable for the places such as airport, customs, station.
According to one embodiment of present invention, a kind of sampling apparatus 10 is provided, the sampling apparatus 10 has sampling face
100, it is arranged in sampling face 100 for sucking multiple suction inlets 101 of the sample particle of tested target and for blowing out air-flow
Multiple blow valve ports 102, wherein sampling apparatus 10 is by the subsequent processing unit of sample delivery to rays safety detection apparatus.It is the multiple
Blow valve port 102 and the multiple suction inlet 101 are arranged in sampling face 100 in an array manner respectively, and the multiple are blown
It sweeps 102 array of mouth and is arranged in sampling face 100 in the form being embedded in the gap of the multiple 101 array of suction inlet.Sampling
Device 10 further includes asepwirator pump 105, is set for example, by the intake line in connecting pipe 103 with the subsequent of such as pretreatment unit
The connection of standby and suction inlet 101 forms sampling access, sucks sample for forming negative pressure at suction inlet 101.It further include inflation
Pump 106, the inflator pump 106 are configured to gas for example, by the gassing pipe 104 in connecting pipe 103 from blow valve port 102
Blowout.The multiple blow valve port 102 and the multiple suction inlet 101 are configured to simultaneously or alternately operate.Blow valve port 102
The gas of blowout can be thermally formed thermal current by gassing pipe 104 and purge to tested target.Thermal current is advantageous, can be with
Accelerate volatile samples or substance to volatilize from tested target, can also accelerate some to be adhered to tested target surface or hide place
Sample is detached from tested target, so that the sample for being detached from tested target is inhaled into the sucking of mouth 101.
According to a further aspect of the invention, a kind of safety inspection method using above-mentioned rays safety detection apparatus is provided, including following
Step: when people or luggage are close to the face battle array sampling apparatus 10, start inflator pump 106, clean air flows through gas blow pipe
The blow valve port 102 that road 104 heats again sampled face 100 carries out thermal current purging to tested target surface, while starting asepwirator pump
105 and the suction of the sample in environmental gas would leak by the suction inlet 101 in sampling face 100, sampled connecting pipe 103
Into the sample adsorbent chamber of full-time pre-concentration sampler；Start Thermal desorption temperature control system so that the temperature of Thermal desorption chamber is maintained one
A constant high temperature；And move and piston type absorber is located in sample parsing position, so that adsorbent chamber is located in pyrolysis
Sample that is intracavitary and being adsorbed by adsorbent chamber is analysed at high temperature in the intracavitary rapid precipitation of Thermal desorption.
According to still another embodiment of the invention, a kind of method of sampling is provided, wherein using sampling apparatus 10 as the aforementioned
To tested destination sample.
A further embodiment according to the present invention provides a kind of rays safety detection apparatus, similar with aforementioned rays safety detection apparatus.In order to avoid
It repeats, only describes different parts here.The present embodiment is unlike above-mentioned rays safety detection apparatus, and the present embodiment is without using sampling
Asepwirator pump, and use cyclone getter device.A spout wind apparatus can be used, multiple spout wind apparatus also can be used,
It is separately connected one or more suction inlets 101.
The structure of spout wind apparatus is described below.Fig. 6 is the tornado of a preferred embodiment according to the present invention
The vertical section schematic diagram of sampling apparatus.As shown in fig. 6, a kind of tornado of the collecting function to airborne substance with amplification is real
When sampling apparatus, comprising: end cap 1, have hole；With, the pressure ring 2 being arranged on end cap 1, pressure ring 2 is by coarse strainer 3 and micro-filtration net 4
It is mounted on above the aperture of end cap 1, to stop large particulate matter to enter inside sampling apparatus.Coarse strainer can not only filter big
Particle, and there is stronger rigidity, the shock of pressure and bulky grain from external environment can be prevented.Micro-filtration net is used for
Filter tiny solia particle or microparticle.It is alternatively possible to using the end cap 1 of one, wherein the end cap of one has opening,
Or be sample inlet, and sample inlet is disposed with multihole device 3 or 4, to stop large particulate matter to pass through the end cap 1.
Sampling apparatus according to the present invention further includes gas curtain guide body 5, and end cap 1 can be sealed on rotation by O-ring seal 8
The upper surface of rotatable gas curtain guide body 5, to seal the upper ring surface of gas curtain guide body 5.Rotary gas curtain guide body 5 has circle
Cartridge type lateral wall, and can have section as shown in the figure in funnel shaped inner sidewall.In other words, gas curtain guide body 5 can
To be the combination an of cylinder and its an interior funneling inner sidewall.Alternatively, the list that gas curtain guide body 5 can be integrally formed
Part.The angle of funneling inner sidewall and drum type brake lateral wall can be between 20 ° -30 °, however other angles are also optional.
In one embodiment, it is straight to be at least upper surface for the diameter of the lower end surface of the funneling inner sidewall of gas curtain guide body 5
Twice of diameter.In other words, the diameter for the under shed that funneling inner sidewall is formed is at least twice of the diameter of upper opening.It is this
It is funnel shaped to form cyclone designed for simulation.The medial surface of the funneling inner sidewall of gas curtain guide body 5 limits inner space,
Inner space in sectional view i.e. as shown in FIG. 6, between two inner sidewalls as shown in the figure.However, in of the invention other
In embodiment, the diameter of the lower end surface of the funneling inner sidewall of gas curtain guide body 5 is three times or gas curtain guidance of upper surface diameter
The diameter of the lower end surface of the funneling inner sidewall of body 5 is more much larger than upper surface diameter.
Fig. 5 shows cross-sectional view of the side wall along A-A of gas curtain guide body 5.As shown in figure 5, the leakage of gas curtain guide body 5
The upper end of bucket type inner sidewall is evenly arranged multiple whirl holes 6, the inner sidewall of the axial directions of these whirl holes 6 and funnel is close to phase
It cuts, the axis of whirl hole 6 and the angle of vertical direction are between 45 °~90 °.Whirl hole is along the leakage with gas curtain guide body 5 as a result,
Tangent and downward (along the arrow direction shown in Fig. 6) direction of bucket type inner sidewall, so that gas flows out from whirl hole and along leakage
The tangent direction of bucket type inner sidewall flows downward.
There is inflation entrance 7 on the drum type brake lateral wall of gas curtain guide body 5.On the outside of the drum type brake for rotating gas curtain guide body 5
Wall, funneling inner sidewall and end cap 1 surround an annular space.Gas can enter annular space from inflation entrance 7, then
In the funnel shaped inner space that whirl hole 6 of the air of annular space on funneling inner sidewall blows into gas curtain guide body 5, formed
Eddy flow gas curtain 30.
In the present embodiment, thus it is shown that sample is sucked from upper end, is discharged from lower end, charge air conditioning air-flow spiral shell from the top down
Eddy flow is dynamic.However, this is an example, when the horizontal positioned opposite object to be detected of sampling apparatus, such as sample inlet pair
Positioned at the object to be detected on the sampling apparatus left side when, the osculum side of gas curtain guide body 5 is against left side object to be detected, at this time
Infundibulate inner wall 9 is horizontal arrangement form, and sample is advanced from left to right.
According to an embodiment of the invention, gas curtain guide body 5 may include gas ducting 18.Fig. 6 shows a kind of arrangement,
18 one end of gas ducting is connected to inflation entrance 7, and the other end is connected to the air pump 28 of inflation.The air pump 28 of inflation is by air
Wind is sent into annular space, rotation of the air wind of annular space on funneling inner sidewall through gas overcharging entrance 7 along gas ducting 18
Discharge orifice 6 blows into formation eddy flow gas curtain 30 in the space of funnel shaped inner.The setting of annular space is advantageous, and the unstable of air inlet can
To be eliminated by annular space.
Sampling apparatus further includes wind guide chamber 9, and wind guide chamber has cylinder shape inner wall.Wind guide chamber 9 is nested in by O-ring seal
Below gas curtain guide body 5.Wind guide chamber 9 can engage otherwise with gas curtain guide body 5, as long as not influencing the shape in wind guide chamber
At tornado air-flow.Tornado air-flow is known to the skilled in the art, i.e., in the peripheral gas high speed of air-flow
Or at least rapidly spirally rotate, i.e., it (in the present embodiment on the section of wind guide chamber) is rotary motion in transversal cross-section,
There is the speed moved (in the present embodiment from one end of sample inlet to sample export one end) forward in a longitudinal direction simultaneously
Degree；While gas is sucked forward along the longitudinal direction at air-flow center or axle center.Wind guide chamber 9 is for maintaining tornado cyclone simultaneously
The airborne substance that guidance tornado axle center is sucked enters subsequent detection device.As shown in fig. 6, eddy flow gas curtain 30 advances downwardly,
Vortex gas-flow 31 is formed into wind guide chamber 9.Tornado swirling eddy 32 is flowed along wind guide chamber 9, through 9 bottom side of the wall of wind guide chamber
On whirlwind outlet 10 be discharged from exhaust pump interface 23 and through exhaust outlet 27.
Sampling apparatus further includes infundibulate bottom cover 13, is sealed 9 lower end surface lid of wind guide chamber by O-ring seal 8.Bottom cover
Semi-permeable membrane 11 is equipped between 13 and 9 lower port of wind guide chamber, semi-permeable membrane 11 can prevent the hydrone sucked in airborne substance, ammonia point
Son and other impurities pollutant enter and pollute the chromatographic column or migration tube of rear end.In addition, the also restricted cluster of semi-permeable membrane 11
Formation, and then improve instrument resolution ratio.
According to an embodiment of the invention, two panels net metal 12 can be set, to carry out clamping protection to semi-permeable membrane 11,
Break through semi-permeable membrane 12 from air-flow.
Infundibulate bottom cover 13 can be used as mixed zone or the mixing chamber of carrier gas and sample.Infundibulate bottom cover 13 may include carrying
Gas channel 21, for injecting carrier gas, the carrier gas come in is sufficiently mixed in funnel with sample.Infundibulate bottom cover 13 can also include
The sample of injection port 20, acquisition is for example discharged after mixing preheating by injection port 20 with carrier gas.In some cases, sample and
Carrier gas, which can be mixed directly, not to need to heat and be discharged.
Sampling apparatus further includes the muff 14 being arranged on wind guide chamber 9, be arranged in the heating rod 16 in wind guide chamber 9 and
Temperature sensor 17, thus they constitute temperature control system, can carry out temperature control, such as heat temperature raising to wind guide chamber 9.Temperature control system
Can be by the intracorporal temperature control of chamber at 50 DEG C -250 DEG C, high temperature facilitates high boiling airborne substance Quick-gasifying and passes through
Semi-permeable membrane, and be conducive to gasify sample and the carrier gas come in from the carrier gas passage 21 on funneling side wall it is sufficiently mixed in funnel
It closes, instrument can be effectively improved to the detectable limit of high boiling substance.The sample of acquisition is carried after mixing preheating with carrier gas by carrier gas
Into injection port 20.The metal material of good in thermal property, external thermal insulation can be used in rotation gas curtain guide body 5, wind guide chamber 9, bottom cover 13
Set 13 can be used~aeroge of 10mm thickness or glass or ceramic wool.It is alternatively possible to using 15 shroud of polytetrafluoroethylene (PTFE) outer cover
Outside insulating layer 13.
Fig. 6 shows the bottom face of outer cover 15 comprising inflation pump interface 22, exhaust pump interface 23, such as GC column/ion move
Move follow-up equipment interface 24, heating rod lead-out wire 25, temperature sensor lead-out wire 26, exhaust outlet 27 and the carrier gas interface tube of pipe
36.Wherein, inflation pump interface 22 and exhaust pump interface 23 can connect an air pump 28 respectively, for persistently provide gas pressure with
Just tornado air-flow is formed inside sampling apparatus.The exhaust expectation of pump interface 23 is arranged so that vapour lock is as small as possible, thus
Opening of the pump interface in wind guide chamber is vented it is expected in face of the direction of air-flow, so that air-flow easily flows into exhaust pump interface.Row
Air pump interface 23 can not also connect air pump 28 and be directly used as exhaust outlet.It, can in order to make tornado attract the air-flow discharge of amplification
To design several exhaust outlets 27 more.GC column/Ion transfer interface tube 24 can connect GC column, can also directly connect such as Ion transfer
The detection devices such as pipe.Carrier gas interface tube 36 connects molecular sieve 35 to be purified carrier gas.
The power of air pump 28 as shown in the figure can be adjusted on demand.Since tornado has gas collection enlarging function, row
The flow velocity of air pump is 10 times of inflator pump or more.
In order to avoid the air stream that inflator pump 28 is filled with interferes the target component sucked from sampled targets 33, one
As far as possible, the flexible conduit that such as available flexible turns to will for the air-source distance samples target 33 that aspect can acquire inflator pump
Air pump and sampling stomidium space out, and on the other hand can be filtered purification to the air for entering inflator pump, gas is avoided to hand over
Fork pollution improves the sensitivity of the positioning sampling of sampling instrument.
Illustrate the tornado sampling apparatus to gas with amplification collecting function of embodiment according to the present invention below
Sampling, sample introduction process.
By the front aperture of sampling apparatus of the invention 5-10cm place alignment sampled targets 33, open simultaneously inflation and
It is vented air pump 28.Aeration gas flow 29 is filled in the annular space of gas curtain guide body 5 along gas ducting through gas overcharging entrance 7, in gas
Gas pressure is generated in annular space under the lasting wind pressure of pump 28, under gas pressure, air is in gas curtain guide body 5
Whirl hole 6 is blown into funnel inner space, and due to the particular configuration of whirl hole 6, air is blown into inner space along specific direction,
Infundibulate rotation gas curtain 30 is consequently formed.In air pump 28 in the case where being constantly blown into air, the rotation gas curtain 30 that is constantly formed
It is moved along 9 inner wall of wind guide chamber, that is, quickly rotate around the central axis 32 of wind guide chamber 9 and move down simultaneously, form cyclone
Formula air-flow 31.Due to the effect for the centrifugal force that rotation is formed, the central pressure of tornado air-flow reduces significantly, for example, in
The air pressure of mandrel line 32 is about 10 times lower than ambient air pressure, and very big suction thus will be generated at the central axis of wind guide chamber 9
Power.Suction force may make the airborne substance near the target sampled 33 to be inhaled into wind-guiding around the front aperture of wind guide chamber 9
The wind axis immediate vicinity of chamber 9, and sample air column is formed, the central axis 32 along tornado air-flow moves down, final sample
Reach sample introduction semi-permeable membrane 11.This process is similar to " the dragon water intaking " of tornado in nature.
On the one hand, the sample of acquisition enters the funnel shaped intracavitary of bottom cover 13 through semi-permeable membrane 11, quick the case where preheating
Gasify and be sufficiently mixed with the carrier gas stream 37 come in from the carrier gas passage 21 in the side wall of bottom cover 13, carrier gas later carries sample
Into sample introduction interface 20.
On the other hand, for the gas of the periphery of the rotation center of tornado air-flow 31, outside tornado air-flow 31
It encloses and to form cyclone and moved along 9 side wall of wind guide chamber, at wind guide chamber bottom, the gas of peripheral cyclone enters outlet 10, this part gas
Body formation whirlwind goes out air-flow 34 and is discharged through exhaust outlet 27.Outlet 10 is arranged towards the airflow direction of cyclone, is shown in FIG. 6
In orientation, outlet 10 obliquely, and can export and can not be towards chamber central and be biased into the tangential direction of inner wall, with
Just the opening direction exported the closer directional velocity towards air-flow in exit.Although that is, the opening of outlet 10
Direction there is no strictly and air-flow exit directional velocity on the contrary, still outlet 10 opening direction exported close to air-flow
The directional velocity at place it is reversed, so as to gas more easily enter outlet 10 in be discharged.
By this process, constantly aspirated specimens molecule, realization acquire the amplification of airborne substance to sampling apparatus.
The foregoing is merely preferred embodiments of the invention, are not limitation with the present invention, all of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within spirit and principle.
Claims (15)
1. a kind of rays safety detection apparatus, comprising:
Sampling apparatus, the sampling apparatus have sampling face, the sample particle for sucking tested target are arranged in sampling face
Multiple suction inlets and multiple blow valve ports for blowing out air-flow；
Pretreatment unit, for absorption and concentrating sample；And
Detection device is used for test sample property,
Wherein, pretreated sample delivery is extremely detected sample delivery to pretreatment unit, pretreatment unit by sampling apparatus
Device；
Wherein the multiple blow valve port and the multiple suction inlet are arranged in sampling face in an array manner respectively, and multiple
Suction inlet is rounded or the mode of polygonal arrangement is arranged in outer ring, and multiple blow valve ports are rounded or the mode cloth of polygonal arrangement
It sets in inner ring.
2. rays safety detection apparatus as described in claim 1, wherein the multiple blow valve port and the multiple suction inlet are configured to
Simultaneously or alternately operate.
3. rays safety detection apparatus as described in claim 1, wherein at least partly setting filter of the multiple suction inlet, for hindering
Only big particle enters in suction inlet.
4. rays safety detection apparatus as described in claim 1, wherein sampling apparatus is connected to pre- place by pluggable connecting pipe
Device is managed, the connecting pipe includes temperature regulating device, for maintaining required temperature to pass through connecting tube in connecting pipe
The gas in road or the temperature of sample are increased to predetermined temperature, and temperature regulating device includes insulating layer, heater and sensor.
5. rays safety detection apparatus as claimed in claim 4, wherein connecting pipe includes for the intake line of air entry and for blowing
The gassing pipe of port.
6. rays safety detection apparatus as claimed in claim 5, wherein sampling apparatus further includes sampling asepwirator pump, pass through the connecting pipe
In intake line be connected to form sampling access with pretreatment unit and suction inlet, at suction inlet formed negative pressure sucking
Sample, and sample is adsorbed at pretreatment unit.
7. rays safety detection apparatus as claimed in claim 5, wherein sampling apparatus further includes inflator pump, the inflator pump is configured to pass through
Gas is blown out from blow valve port or blows out gas from pretreatment unit by the gassing pipe in the connecting pipe.
8. rays safety detection apparatus as claimed in claim 5, wherein pretreatment unit includes full-time pre-concentration absorber comprising first
Piston type Adsorption Concentration device and second piston formula Adsorption Concentration device, wherein the intake line and gassing pipe of connecting pipe are by cutting
Changing device is respectively connected to either one or two of first piston formula Adsorption Concentration device and second piston formula Adsorption Concentration device, so that sucking
Sample is sent into a period in first piston formula Adsorption Concentration device and second piston formula Adsorption Concentration device, first piston by pipeline
Another in formula Adsorption Concentration device and second piston formula Adsorption Concentration device carries out the parsing of sample.
9. rays safety detection apparatus as described in claim 1, wherein detection device includes gas-chromatography-ionic migration spectrometer.
10. a kind of sampling apparatus for rays safety detection apparatus, the sampling apparatus has sampling face, is arranged in sampling face for inhaling
Enter multiple suction inlets of the sample particle of tested target and multiple blow valve ports for blowing out air-flow,
Wherein, sampling apparatus is by the subsequent processing unit of sample delivery to rays safety detection apparatus；
Wherein the multiple blow valve port and the multiple suction inlet are arranged in sampling face in an array manner respectively, and multiple
Suction inlet is rounded or the mode of polygonal arrangement is arranged in outer ring, and multiple blow valve ports are rounded or the mode cloth of polygonal arrangement
It sets in inner ring.
11. sampling apparatus as claimed in claim 10, wherein sampling apparatus further includes sampling asepwirator pump, with intake line and
Suction inlet is connected to form sampling access, sucks sample for forming negative pressure at suction inlet.
12. sampling apparatus as claimed in claim 10, wherein sampling apparatus further includes inflator pump, the inflator pump is configured to lead to
It crosses gassing pipe and blows out gas from blow valve port.
13. sampling apparatus as claimed in claim 10, wherein sampling apparatus also cyclone getter device, by intake line with
Sampling access is formed, sucks sample for forming negative pressure at suction inlet.
14. a kind of safety inspection method, wherein using the rays safety detection apparatus as described in any one of preceding claims 1-9 to tested target
Implement safety check.
15. a kind of method of sampling, wherein using the sampling apparatus as described in any one of preceding claims 10-13 to tested mesh
Mark sampling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673716.2A CN105203692B (en) | 2015-10-16 | 2015-10-16 | Rays safety detection apparatus, the sampling apparatus of rays safety detection apparatus, safety inspection method and the method for sampling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510673716.2A CN105203692B (en) | 2015-10-16 | 2015-10-16 | Rays safety detection apparatus, the sampling apparatus of rays safety detection apparatus, safety inspection method and the method for sampling |
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| CN104535379B (en) * | 2014-12-31 | 2018-01-16 | 同方威视技术股份有限公司 | Sampling apparatus and gas curtain guide body |
| CN105929032A (en) * | 2016-02-26 | 2016-09-07 | 常州磐诺仪器有限公司 | On-line monitoring system for non-methane total hydrocarbons |
| CN105738543B (en) * | 2016-03-21 | 2018-10-26 | 苏州微木智能系统有限公司 | A kind of safety check apparatus and safety check check all-in-one machine |
| CN106680043B (en) * | 2016-11-21 | 2020-07-31 | 北京蓝色星语科技有限公司 | Disturbance sampling device and method for biochemical harmful factors |
| CN106872557A (en) * | 2017-02-28 | 2017-06-20 | 苏州安益谱精密仪器有限公司 | Safe examination system, Ion transfer spectrum detection device and safety inspection method |
| CN108845054A (en) * | 2018-07-12 | 2018-11-20 | 同方威视技术股份有限公司 | Item detection systems and method, electronic equipment, storage medium |
| CN113776900B (en) * | 2020-06-08 | 2022-08-30 | 同方威视技术股份有限公司 | Smell sniffing device and vehicle-mounted security inspection equipment for container |
| 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 |
| CN116256302B (en) * | 2023-05-16 | 2023-07-25 | 江苏长海消防装备有限公司 | Waterproof breathable dry-type detector for processing fire-extinguishing protective boots |
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| US7997119B2 (en) * | 2006-04-18 | 2011-08-16 | Excellims Corporation | Chemical sampling and multi-function detection methods and apparatus |
| CN101990631B (en) * | 2008-02-15 | 2014-08-06 | 3M创新有限公司 | Sample acquisition device |
| CN102590236B (en) * | 2008-06-27 | 2014-10-22 | 同方威视技术股份有限公司 | Person safety inspection system |
| US8561486B2 (en) * | 2009-07-13 | 2013-10-22 | Enertechnix, Inc | Particle interrogation devices and methods |
| CN107064361B (en) * | 2014-12-31 | 2020-03-27 | 同方威视技术股份有限公司 | Detection apparatus and detection method |
| CN104569228B (en) * | 2014-12-31 | 2016-03-16 | 同方威视技术股份有限公司 | A kind of sampling device |
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