CN208187797U - Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment - Google Patents
Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment Download PDFInfo
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- CN208187797U CN208187797U CN201721924353.6U CN201721924353U CN208187797U CN 208187797 U CN208187797 U CN 208187797U CN 201721924353 U CN201721924353 U CN 201721924353U CN 208187797 U CN208187797 U CN 208187797U
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Abstract
The utility model discloses a kind of sampling absorber, Thermal desorption chamber device, sampling module and analytical equipments.Sampling absorber includes: outer cylindrical portion with outer cylindrical portion first end and outer cylindrical portion second end and the core being placed in outer cylindrical portion, the core has core first end and core second end, outer cylindrical portion first end and core first end are located at the same side, wherein, core includes configuring to connect to the adsorption section of adsorption sample and core body portion, adsorption section with core body portion；Outer cylindrical portion and core are dimensioned so as between outer cylindrical portion and core there are gap, to allow external gas enter gap by the adsorption section, then from the discharge of the downstream part in the gap.
Description
Technical field
The utility model relates to technical field of analysis and detection, in particular to a kind of sampling absorber, is adopted Thermal desorption chamber device
Egf block and analytical equipment.
Background technique
In the prior art, detection is sampled to gas or solid particulate matter in an application requirements.However, acquisition sample
The method and apparatus of product also needs to further increase efficiency.For example, needing quickly and reliably to check in places such as airport, customs
It whether include violated object in cargo or package.
In addition, the inspection equipment of the prior art is frequently necessary to unpack, or need to destroy partial cargo even to implement to examine
It surveys, this is very inconvenient in real operation.It is preferred that realizing detection in the case where not unpacking, not destroying cargo.
It is then desired to a kind of equipment of fast and reliable acquisition sample, to help to implement fast and accurately on-site test.
Utility model content
One side according to the present utility model, the utility model provide a kind of sampling absorber, comprising: have outer cylindrical portion the
The outer cylindrical portion of one end and outer cylindrical portion second end and the core being placed in outer cylindrical portion, the core have core first end and core the
Two ends, outer cylindrical portion first end and core first end are located at the same side, wherein
Core includes the adsorption section and core body portion to adsorption sample, and adsorption section connects core body portion；
Being dimensioned so as between outer cylindrical portion and core there are gap for outer cylindrical portion and core, can with the gas outside allowing
Gap is entered by the adsorption section, is then discharged from the downstream part in the gap.
In one embodiment, the outer cylindrical portion includes bypass passageways, and the bypass passageways include spatially being spaced each other
Bypass inlets and the bypass passageways outlet opened, bypass inlets are exported than bypass passageways close to outer cylindrical portion first end；And
And
The sampling absorber further includes being arranged between the core and outer cylindrical portion and being fixed on core outer circumferential face
The second inner seal ring of the first inner seal ring of absorber and absorber, in first inner seal ring of absorber and absorber second
Sealing ring is spaced apart and is configured to: the core being allowed to keep the core and described while movement in the outer cylindrical portion
Sealing between outer cylindrical portion, and in the case where sampling absorber is in first state, the first inner seal ring of absorber and absorber the
Two inner seal rings are between bypass inlets and bypass passageways outlet, and the first inner seal ring of absorber enters close to bypass passageways
Mouthful, the second inner seal ring of absorber is exported close to bypass passageways, and the gas for entering the gap from the adsorption section is adsorbed device
First inner seal ring stop thus enter bypass inlets, from bypass passageways export flow out, into the downstream in the gap.
In one embodiment, mobile relative to the outer cylindrical portion by the core, so that sampling absorber is in the
Under two-state: first inner seal ring of absorber is located between bypass inlets and bypass passageways outlet, absorber second
Inner seal ring is located at the side far from the outer cylindrical portion first end of bypass passageways outlet, so that from bypass passageways outlet outflow
Gas, which is adsorbed the second inner seal ring of device, to be stopped to be unable to the downstream part into the gap.
In one embodiment, the outer cylindrical portion includes sample parsing channel, and sample parsing channel can allow for gas
Body flows out to outer cylindrical portion from adsorption section；
The sampling absorber further includes being arranged between the core and outer cylindrical portion and being fixed on core outer circumferential face
The second inner seal ring of the first inner seal ring of absorber and absorber, in first inner seal ring of absorber and absorber second
Sealing ring is spaced apart and is configured to: the core being allowed to keep the core and described while movement in the outer cylindrical portion
Sealing between outer cylindrical portion, and in the case where sampling absorber is in first state, the entrance in sample parsing channel, which is located at, to be inhaled
Between the second inner seal ring of the first inner seal ring of adnexa and absorber, gas is adsorbed the first inner seal ring of device and absorber second
Inner seal ring blocking not can enter sample parsing channel.
In one embodiment, mobile relative to the outer cylindrical portion by the core, so that sampling absorber is in the
Under two-state, first inner seal ring of absorber and the second inner seal ring of absorber are located at the remote of the entrance in sample parsing channel
Side from the outer cylindrical portion first end so that gas can only enter sample parsing channel from the gap, and passes through the sample
Product parse channel and are discharged from outer cylindrical portion.
In one embodiment, the core body portion includes absorber sampling channel, the entrance of absorber sampling channel
It is connected to the gap, the outlet of the absorber sampling channel is exposed to except the outer cylindrical portion.
In one embodiment, sampling absorber further includes absorber third sealing ring, is fixed on the outer of core first end
Circumferential surface, absorber third sealing ring allow absorber and outer cylindrical portion to keep close between absorber and outer cylindrical portion when relatively moving
Envelope.
In one embodiment, sampling absorber further includes the sampling head for being removably mounted on outer cylindrical portion end, described
Sampling head configuration is to scrape inspected object so that sample is detached from object to be checked.
In one embodiment, sampling head is formed by silicon rubber, so as to adhere to sample to be tested；And/or sampling head
Interior setting adsorbent, to adsorb sample to be tested.
In one embodiment, mesh structure is arranged in the both ends of the adsorption section, to filter bulky grain solid, and institute
It is detachably connected with adsorption section to state mesh structure, adsorbent is fixed in adsorption section by the mesh structure.
In one embodiment, the core body portion second end opposite with core body portion first end in core body portion
Outside includes sampling absorber T connector, and the outer cylindrical portion includes the sliding slot inside outer cylindrical portion second end, so that sampling absorption
Device T connector can move in the sliding slot and sample the shift motion of absorber T connector and be limited by the sliding slot, also, adopt
The first end of absorber T connector contact sliding slot is sampled when sample absorber is under first state, sampling absorber is in the second shape
Sample the second end of absorber T connector contact sliding slot when under state, the second end of sliding slot than sliding slot first end close to core body
The second end in portion.
Another aspect of the present disclosure provides a kind of Thermal desorption chamber device, including cavity, and the cavity limits Thermal desorption chamber, institute
State the cavity second end that cavity includes cavity first end and the opening opposite with cavity first end；
The Thermal desorption chamber device further includes partition, and bulkhead seal circle is arranged between the partition and the cavity, described
Bulkhead seal circle is configured to allow for partition that can keep close between partition and the cavity while Thermal desorption is intracavitary mobile
Envelope；
Wherein the cavity includes carrier gas inlet and carrier gas outlet, so that under the third state of Thermal desorption chamber device, institute
The side far from the cavity first end that partition is located at carrier gas outlet is stated, carrier gas can enter Thermal desorption chamber from carrier gas inlet,
It exports and is discharged from carrier gas.
In one embodiment, partition is connect by spring with the cavity first end of the cavity, and the spring is matched
It is set to the side far from the cavity first end for keeping partition to be located at carrier gas outlet in the case where no external force, and
Allow under external force, partition compresses the spring and towards cavity first end movement, so that the bulkhead seal circle
Positioned at the side of the close cavity first end of carrier gas inlet.
In one embodiment, Thermal desorption chamber device further includes heating pole, and the heating pole is installed to the partition, and from
The partition is prominent towards cavity second end.
In one embodiment, the cavity includes hot chamber and cold chamber, and the hot chamber is connected with cold chamber by adiabatic disks, institute
Partition is stated in the intracavitary movement of heat.
In one embodiment, the hot chamber includes temperature regulating device, and the temperature regulating device is by for increasing hot cavity temperature
Heater and measure the temperature sensor of hot cavity temperature and constitute；And insulation portion, it is configured to the intracavitary heat leakage of isolation heat and arrives
Outside Thermal desorption chamber device.
On the one hand the disclosure also provides a kind of sampling module, including above-mentioned sampling absorber and above-mentioned Thermal desorption chamber dress
It sets, wherein the sampling absorber can be by described in the insertion of the cavity second end of the opening of the cavity of the Thermal desorption chamber device
Thermal desorption chamber device it is cold intracavitary so that the outer cylindrical portion first end of the outer cylindrical portion of sampling absorber passes through the outer of outer cylindrical portion first end
The first sealing ring of outer cylindrical portion on circumferential surface abuts the adiabatic disks.
In one embodiment, when the sampling absorber is inserted into the cold intracavitary of the Thermal desorption chamber device, Thermal desorption chamber
The heating pole of device contacts and applies force to the adsorption section of the sampling absorber, so that adsorption section is moved in the outer cylindrical portion
Dynamic, until sampling absorber T connector is stopped by the second end of sliding slot, sampling absorber is in the second state.
In one embodiment, the sampling absorber is inserted into the hot chamber of the Thermal desorption chamber device, so that described
Sampling absorber adsorption section apply force to heating pole make heating pole together with partition towards Thermal desorption chamber device cavity chamber
Body first end is mobile, so that the Thermal desorption chamber device is in the third state；It is wherein outer on the outer peripheral surface of outer cylindrical portion first end
The first sealing ring of canister portion is slided in the intracavitary inner wall along the hot chamber of the heat, exports it until being located at carrier gas inlet and carrier gas
Between.
In one embodiment, the periphery of outer cylindrical portion further includes stopper section, and the stopper section is configured in the Thermal desorption
Chamber device can abut the adiabatic disks of the Thermal desorption chamber device to prevent sampling absorber from continuing court when being in the third state
It is mobile to the Thermal desorption chamber device first end.
In one embodiment, the sampling absorber includes slidably lantern ring, and the slidably set ring set is in outer canister portion
Periphery, and can be engaged to the Thermal desorption chamber device the cavity second end near bayonet in, while allowing outer
Canister portion moves in Thermal desorption chamber device.
The one side of the disclosure provides a kind of analytical equipment, including above-mentioned sampling module.
Detailed description of the invention
Fig. 1 shows the schematic cross-section of the sampling absorber of one embodiment of the utility model；
Fig. 2 shows the schematic cross-sections of the sampling absorber of one embodiment of the utility model；
Fig. 3 shows the Thermal desorption chamber device schematic cross-section of one embodiment of the utility model；
The sampling absorber that Fig. 4 shows one embodiment of the utility model is placed in Thermal desorption chamber device schematic cross-section,
Wherein sampling absorber is not in parsing sample state；
The sampling absorber that Fig. 5 shows one embodiment of the utility model is placed in Thermal desorption chamber device schematic cross-section,
Wherein sampling absorber is in parsing sample state.
Specific embodiment
Although the utility model allows various modifications and interchangeable form, its specific embodiment passes through example
Mode be shown in the accompanying drawings, and will be described herein in detail.It should be appreciated, however, that the attached drawing and detailed of accompanying
Description is not configured to for the utility model to be restricted to disclosed concrete form, but on the contrary, is to cover and fall by being appended
All modifications, equivalent form and alternative forms in the spirit and scope of the utility model that claim limits.Attached drawing is
In order to illustrate, thus draw not to scale.
Used the terms such as " first ", " second " in the present specification, be not intended to sort or indicate importance or
Primary-slave relation, but for distinguishing different components." left side " and " right side " is described relative to attached drawing in this specification
When orientation, have no limiting meaning.
Below according to Detailed description of the invention multiple embodiments according to the present utility model.
Referring to Fig. 1, the embodiments of the present invention provide a kind of sampling absorber, comprising: have outer cylindrical portion first end and
The outer cylindrical portion of outer cylindrical portion second end and the core being placed in outer cylindrical portion, the core have core first end and core second end,
Outer cylindrical portion first end and core first end are located at the same side, wherein
Core includes the adsorption section and core body portion to adsorption sample, and adsorption section connects core body portion；
Being dimensioned so as between outer cylindrical portion and core there are gap for outer cylindrical portion and core, can with the gas outside allowing
Gap is entered by the adsorption section, is then discharged from the downstream part in the gap.
As shown in Figure 1, generally, sampling absorber has outer cylindrical portion 1001 and the core in outer cylindrical portion 1001
1002.Core 1002 includes adsorption section 102 and core body portion, and core main part is considered as removing for core 1002 in Fig. 1
Remove the remainder of adsorption section 102.It is worth noting that be a kind of embodiment shown in Fig. 1, the wherein size of adsorption section
Size with core body portion is substantially the same, however, in the other embodiments of the disclosure, the size and core of adsorption section
The size of portion's main part can be different.For example, in one embodiment, the size of adsorption section can be less than still close to core
The size of portion's main part.In one embodiment, the size of adsorption section can be greater than the still size close to core body portion.?
In one embodiment, adsorption section and core body portion can be the shape of cylindrical body.In one embodiment, adsorption section and core
Main part can be the shape of the cylindrical body with elliptic cross-section.In one embodiment, adsorption section and core body portion can
To be the shape with the cylindrical body close to elliptic cross-section.
In Fig. 1, the outer cylindrical portion first end of outer cylindrical portion and the core first end of core 1002 are located at the left side of Fig. 1, outer cylinder
The outer cylindrical portion second end in portion 1001 and the core second end of core 1002 are located at the right side of Fig. 1.In outer cylindrical portion 1001 and core
There are gaps between 1002.Right side flow of the extraneous gas from the left side of Fig. 1 to Fig. 1: sampling is entered by adsorption section 102 first
Absorber subsequently enters the gap.The intermediate gap Fig. 1 is between outer cylindrical portion 1001 and core 1002, including the core in Fig. 1
The gap of the downside of 1002 upper side clearance and core 1002.In actual device, gap should be around core 1002
Gap.The downstream in gap is construed as the right side of Fig. 1.
In one embodiment, the outer cylindrical portion 1001 includes bypass passageways 104, and the bypass passageways 104 include space
On the bypass inlets 1041 that are separated from each other and bypass passageways outlet 1042, bypass inlets 1041 go out than bypass passageways
Mouth 1042 is close to 1001 first end of outer cylindrical portion.The sampling absorber further includes being arranged in the core 1002 and outer cylindrical portion 1001
Between and the second inner seal ring of the first inner seal ring of absorber 1031 and absorber for being fixed on 1002 outer peripheral surface of core
1032, first inner seal ring of absorber 1031 and the second inner seal ring of absorber 1032 are spaced apart and are configured to: allowing
The core 1002 is kept while moving in the outer cylindrical portion 1001 between the core 1002 and the outer cylindrical portion 1001
Sealing, and sampling absorber be in first state under, it is close in the first inner seal ring of absorber 1031 and absorber second
Seal 1032 is between bypass inlets 1041 and bypass passageways outlet 1042, and absorber the first inner seal ring 1031 is close
Bypass inlets 1041, the second inner seal ring of absorber 1032 close to bypass passageways outlet 1042, from the adsorption section 102 into
Enter the gap gas be adsorbed the first inner seal ring of device 1031 stop thus enter bypass inlets 1041, it is logical from bypass
1042 outflow of road outlet, into the downstream in the gap.
Sampling absorber first state can be understood as sampling adsorbed state, that is, the gas comprising the sample to be acquired is logical
When crossing adsorption section 102, sample adsorbed portion 102 is adsorbed, and gas enters the gap by adsorption section 102, is then discharged.
In order to improve the efficiency of sampling absorption, pump 201 can be set in the downstream in gap, to form suction in gap
Effect, accelerate gas enter adsorption section 102.
In one embodiment, the core body portion includes absorber sampling channel 108, absorber sampling channel 108
Entrance be connected to the gap, the outlet of the absorber sampling channel 108 is exposed to except the outer cylindrical portion 1001.Setting
Absorber sampling channel 108 is conducive to the gas collection by sampling absorber.For example, when using pump 201,
Pump 201 can be connect with the outlet of absorber sampling channel 108, facilitate intake-gas.However, it should be understood that absorber samples
Channel 108 it is not necessary to.
In the embodiment of setting absorber sampling channel 108, also set in the downstream of the entrance of absorber sampling channel 108
Sealing ring 1034 is set, to prevent gas.
In one embodiment, mobile relative to the outer cylindrical portion 1001 by the core 1002, so that sampling absorption
Device is under the second state: first inner seal ring of absorber 1031 is located at bypass inlets 1041 and bypass passageways outlet
Between 1042, the second inner seal ring of absorber 1032 is located at separate 1001 first end of outer cylindrical portion of bypass passageways outlet 1042
Side so that from bypass passageways outlet 1042 outflow gas be adsorbed the second inner seal ring of device 1032 blocking be unable into
Enter the downstream part in the gap.It can see referring to the sampling absorber in Fig. 4, the first inner seal ring of absorber 1031 is located at
Between bypass inlets 1041 and bypass passageways outlet 1042, the second inner seal ring of absorber 1032 is located at bypass passageways outlet
1042 right side is adsorbed the second inner seal ring of device 1032 from the gas of 1042 outflow of bypass passageways outlet in this way and stops, thus,
Bypass passageways 104 are actually sealed.At this point, the downstream part in gap cannot be continued through into the gas in gap, i.e., between
The right part of gap is discharged.
In one embodiment, the outer cylindrical portion 1001 includes that sample parses channel 110, and the sample parses channel 110
Gas can allow for flow to outside outer cylindrical portion 1001 from adsorption section 102.As shown in Figure 1, in the downside of outer cylindrical portion 1001, or, outside
The different location with bypass passageways 104 of canister portion 1001, setting sample parse channel 110.When absorber, which samples, to be adsorbed, sample
Parsing channel 110 is blocked, that is, the entrance in sample parsing channel 110 is located at the first inner seal ring of absorber 1031 and inhales
Between the second inner seal ring of adnexa 1032, the first inner seal ring of device 1031 and absorber are adsorbed by the gas of adsorption section 102
The blocking of second inner seal ring 1032 not can enter sample parsing channel 110.In Fig. 1, the entrance that sample parses channel 110, which is located at, to be inhaled
The right side of the first inner seal ring of adnexa 1031, thus the gas in the gap in left side is adsorbed the resistance of the first inner seal ring of device 1031
Every.
In one embodiment, mobile relative to the outer cylindrical portion 1001 by the core 1002, it samples at absorber
In the second state, absorber is sampled as shown in Fig. 4 or Fig. 5, at this point, the first inner seal ring of the absorber 1031 and absorption
The second inner seal ring of device 1032 is located at the side far from 1001 first end of outer cylindrical portion of the entrance in sample parsing channel 110,
So that gas can only enter sample parsing channel 110 from the gap, and channel 110 is parsed from outer cylindrical portion by the sample
1001 discharges.
The second state of absorber is properly termed as analysis state, that is, and the sample that adsorption section 102 is adsorbed is detached from adsorption section 102, from
Sample parses the discharge of channel 110 sampling absorber.In the second state of absorber, the second inner seal ring of absorber 1032 is located at bypass
The right side of channel outlet 1042 is adsorbed the second inner seal ring of device 1032 from the gas of 1042 outflow of bypass passageways outlet in this way and hinders
Gear；Meanwhile first inner seal ring of absorber 1031 and the second inner seal ring of absorber 1032 are located at sample parsing channel 110
Entrance right side, gas allow at this time by sample parse channel 110 entrance enter sample parse channel 110, discharge is adopted
Sample absorber.Briefly, sample can not flow into the right side of Fig. 4 or Fig. 5 by gap at this time, and be merely able to parse by sample
Channel 110 is discharged, and is analyzed equipment and collects to analyze.
The sampling absorber of the disclosure can realize sampling and simply moving core 1002 by above configuration
The switching of adsorbed state and analysis state, operation is simple and reliable.
In the embodiment above, bypass inlets 1041 and bypass passageways export 1042 in outer cylindrical portion 1001 (along outer cylinder
The length direction in portion 1001) position and sample parsing channel 110 entrance (along the length direction of outer cylindrical portion 1001) position
It sets and does not need to be arranged in strict accordance with position shown in fig. 1, between bypass inlets 1041 and bypass passageways outlet 1042
Distance does not need to be arranged according to distance shown in Fig. 1 yet, it is only necessary to can be realized the first state and second of sampling absorber
State.
For example, shown in Fig. 1, in the first state, interface and bypass passageways between adsorption section 102 and core body portion
Entrance 1041 be aligned, however, this it is not necessary to, embodiment shown in fig. 1 be only the disclosure sampling absorber one kind
Optional structure.
In one embodiment, core body portion includes core body portion second end, i.e. the core body portion on the right side of Fig. 1
End.The outside of core body portion second end includes sampling absorber T connector 107.Correspondingly, the outer cylindrical portion 1001 includes
Sliding slot 109 inside outer cylindrical portion second end, sampling absorber T connector 107 can be moved and be sampled in the sliding slot 109
The shift motion of absorber T connector 107 is limited by the sliding slot 109.That is, sampling absorber T connector 107 is most to the left
It is merely able to move to the left-hand end of sliding slot 109, is at most merely able to move to the right-hand end of sliding slot 109 to the right.Correspondingly, work as sampling
When absorber T connector 107 abuts the left-hand end of sliding slot 109, sampling absorber is in first state；Sample absorber T connector 107
When abutting the right-hand end of sliding slot 109, sampling absorber is in the second state.
By the matching design to up-sample absorber T connector 107 and sliding slot 109, operation can be convenient, such as push away to the left
When core 1002 to sample the left-hand end of the abutting sliding slot 109 of absorber T connector 107, i.e., so that sampling absorber is in first
State draws to the right core 1002, when so that sampling absorber T connector 107 abutting the right-hand end of sliding slot 109, i.e., so that sampling is inhaled
Adnexa is in the second state.Improve as a result, sampling absorber operate conveniently and reliability.
In one embodiment, sampling absorber further includes the sampling head for being removably mounted on 1001 end of outer cylindrical portion
101, the configuration of sampling head 101 is to scrape inspected object so that sample is detached from object to be checked.Sampling head 101 can lead to
Cross the left end for being threaded io outer cylindrical portion 1001.Sampling head 101 can be formed by silica gel material, can pass through adhesive tape in this way
Mode is bonded to the left end of outer cylindrical portion 1001.
As shown in Fig. 2, sampling absorber can be contacted or be scraped by sampling head 101 close to the body surface for needing to check
Body surface is wiped, caducous samples some in this way are scraped off object, subsequently enter the absorption of 102 adsorbed portion 102 of adsorption section.It adopts
Sample head 101 can be made of silica gel, so that silica gel sampling head 101 can adhere to sample.In another embodiment, sampling head 101
Adsorbent inside can be set, thus sampling head 101 can also be with adsorption sample.
It is advantageous using the design of sampling head 101, in sampling process, is adopted with the silicon rubber of the front end of sampling absorber
Sample head 101 opens the suction that pump 201 carries out gas, while wiping on needing detected people/object to adsorb
Sample, extending acquisition time can concentrating sample.
In one embodiment, mesh structure can be set in the both ends of the adsorption section 102, solid to filter bulky grain
Body, and the mesh structure and adsorption section 102 are detachably connected, and adsorbent is fixed on adsorption section by the mesh structure
In 102.It is threadedly engaged for example, mesh structure is used with adsorption section 102, which can not only allow to dismantle mesh structure with convenient
The replacement of adsorbent in adsorption section 102, and sieve pore can also keep off the dust of bulky grain while allowing gas to pass through when sampling
It prevents from polluting outside adsorption section 102.
In one embodiment, sampling absorber further includes absorber third sealing ring 1033, is fixed on core first end
Outer peripheral surface, kept when absorber third sealing ring 1033 allows absorber 102 and outer cylindrical portion 1001 to relatively move absorber and
Sealing between outer cylindrical portion 1001.Setting absorber third sealing ring 1033 is advantageous, and gas is adsorbed device third sealing ring
1033 stop, and sampling absorber can only be entered by adsorption section 102, is unable to by between outer cylindrical portion 1001 and core 1002
Gap enter sampling absorber.
In actual use, it is advantageous using pump 201, such as shown in Fig. 2, pumps 201 for example, by bellows
The outlet of core body portion sampling channel 108 is connected, absorber is sampled at this time and is in first state (sampling adsorbed state), bypass
Channel 104 is in the conductive state, and the swabbing action for pumping 201 forms negative pressure in gap, samples the gas on the left of absorber and is taken out
Enter to sample absorber, initially enter adsorption section 102, the sample in gas thus adsorb by adsorbed portion 102, by adsorption section 102
Gas via bypass passageways 104 enter gap downstream, subsequently enter core body portion sampling channel 108, taken out by pump 201
It walks.
Embodiment of the disclosure also provides a kind of Thermal desorption chamber device, including cavity, and the cavity limits Thermal desorption chamber, institute
State the cavity second end that cavity includes cavity first end and the opening opposite with cavity first end；The Thermal desorption chamber device also wraps
Partition 304 is included, bulkhead seal circle 3041 is set between the partition 304 and the cavity, the bulkhead seal circle 3041 configures
The sealing between partition 304 and the cavity can be kept while Thermal desorption is intracavitary mobile at permission partition 304；Wherein institute
Stating cavity includes carrier gas inlet 301 and carrier gas outlet 302, so that under the third state of Thermal desorption chamber device, the partition 304
Positioned at the side far from the cavity first end of carrier gas outlet 302, carrier gas can enter Thermal desorption chamber from carrier gas inlet 301,
From 302 discharge of carrier gas outlet.
Such as Fig. 3, Thermal desorption chamber device is made of cavity, and cavity defines the space of an inside, i.e. Thermal desorption chamber.This
Place, cavity first end is the end on the left of cavity, and cavity second end is the end on the right side of cavity.As shown, the right side of cavity
The end of side be it is open, it is intracavitary that Thermal desorption can be entered by the end on the right side of cavity.
Thermal desorption chamber device further includes the partition 304 intracavitary in Thermal desorption.Partition 304 can be along the length extension side of cavity
To sliding, i.e. partition 304 can move left and right in Fig. 3.Bulkhead seal circle is set between partition 304 and the inner wall of cavity
3041, the gas in such 304 left side of partition not can enter 304 right side of partition.
In one embodiment, partition 304 is connect by spring with the cavity first end of the cavity, the spring
It is configured to the separate cavity first end for keeping partition 304 to be located at carrier gas outlet 302 in the case where no external force
Side, and allow under external force, partition 304 compresses the spring and towards cavity first end movement, so that institute
State the side that bulkhead seal circle 3041 is located at the close cavity first end of carrier gas inlet 301.In Fig. 3,304 right side of partition is by bullet
Spring support, such partition 304 is kept stable, and under no external force, partition 304 will not be moved to the left；In partition 304
After compressing, external force is removed, partition 304 will be shot back initial position, so that operation is more convenient.In other words, it is using
When, it is only necessary to it is inserted into external equipment, is completed wait operate, external equipment is extracted, without thinking operating partition 304
Or other component, so that operating process is simple.
In one embodiment, Thermal desorption chamber device also sets up guide rod, and guide rod is connect with partition 304, specifically, even
It connects in the left side of partition 304.Guide rod can be telescopic rod, i.e. guide rod autogenous shrinkage allows partition 304 to be moved to the left, when
When partition 304 moves right, guide rod elongation, so that guide rod can be with the movement of anti-swirl pot 304.In reality as shown in Figure 3
Apply in example, guide rod be it is non-telescoping, guide rod passes through the cavity left end of Thermal desorption chamber device, and can be in cavity
The hole of left end moves back and forth, so as to moving left and right for partition 304.It is set between guide rod and the hole wall of cavity left end
Guide rod sealing ring is set, to prevent the gas inside and outside cavity from circulating.However, it should be understood that guide rod it is not necessary to, partition
304, which do not need guide rod, to move left and right in the cavity.
In one embodiment, Thermal desorption chamber device further includes heating pole 308, the heating pole 308 installation to it is described every
Plate 304, and it is prominent from the partition 304 towards cavity second end, as shown in figure 3, the right side of partition 304 is arranged in heating pole 308
Side.
The cavity of Thermal desorption chamber device shown in Fig. 3 may include hot chamber 303 and cold chamber 306, the hot chamber 303 and cold chamber
306 are connected by adiabatic disks 305.Adiabatic disks 305 can completely cut off the heat exchange between cold chamber 306 and hot chamber 303.The partition
304 move in the hot chamber 303.In other words, the mobile range of partition 304 can be limited by adiabatic disks 305.That is, partition 304
The right side of adiabatic disks 305 will not be moved under the action of not by external force.
Hot chamber 303 is set and cold chamber 306 is advantageous, on the one hand, cold chamber 306, which is arranged, can guarantee the sampling for being adsorbed with sample
Absorber is unlikely before the hot chamber 303 for being pushed into Thermal desorption chamber equipment to be heated parsing；On the other hand, can also operator be protected to exist
When will sample in absorber insertion Thermal desorption chamber and/or on driving motor, from scald.
In one embodiment, in order to promote Thermal desorption process, the hot chamber 303 includes temperature regulating device, the temperature control dress
It sets by being constituted for increasing the heater of temperature and the temperature sensor for measuring temperature in hot chamber 303 in hot chamber 303；And heat preservation
Portion is configured to outside the heat leakage in insulation chambers 303 to Thermal desorption chamber device.For example, the cavity of Thermal desorption chamber device can be with
It is made by the good stainless steel of thermal coefficient or copper or other metals, while hot chamber 303 and cold chamber is isolated using ceramic thermal insulation disk 305
306.Hot 303 outer cladding heating film of chamber, heating film can be heated to hot chamber 303.Temperature sensing is installed in hot 303 outer surface of chamber
Device, for detecting the temperature of hot chamber 303.General hot 303 temperature of chamber can control between 50 degree to 300 degree.Add to improve
Heat and heat insulation effect, can coat heat-preservation cotton or other thermal insulation materials in hot 303 outermost layer of chamber；Effect can be improved in thermal insulation material
Rate saves the energy, and the hot chamber 303 that operator can be prevented to be pyrolyzed analysis chamber device is scalded.In other embodiments, it heats
Device can be resistance heater, be arranged around hot chamber 303 to improve the temperature of hot chamber 303.
Embodiment of the disclosure also provides a kind of sampling module, including above-mentioned sampling absorber and Thermal desorption chamber device.
The sampling absorber can be inserted into the cold chamber 306 of the Thermal desorption chamber device by open cavity second end
It is interior, so that on the outer peripheral surface that 1001 first end of outer cylindrical portion of the outer cylindrical portion 1001 of sampling absorber passes through 1001 first end of outer cylindrical portion
The first sealing ring of outer cylindrical portion 1035 abut the adiabatic disks 305.The sampling module of the present embodiment is inhaled sampling with can be convenient
Adnexa and the separation of Thermal desorption chamber device and assembling, to facilitate exclusive use sampling absorber acquisition sample.
As shown in figure 4, in sampling absorber insertion Thermal desorption chamber device, the left end periphery of outer cylindrical portion 1001 and Thermal desorption chamber
It is sealed between the adiabatic disks 305 of device by the first sealing ring of outer cylindrical portion 1035, so that the gas in the left side of adiabatic disks 305 can not be from
Gap between sampling absorber and adiabatic disks 305 enters on the right side of Thermal desorption chamber.
As shown in figure 4, when the sampling absorber is inserted into the cold chamber 306 of the Thermal desorption chamber device, Thermal desorption chamber dress
The heating pole 308 set contacts and applies force to the adsorption section 102 of the sampling absorber, so that adsorption section 102 is in the outer cylinder
It is moved in portion 1001, until sampling absorber T connector 107 is stopped by the second end of sliding slot 109, sampling absorber is in the second shape
State.Sampling absorber core 1002 withstood by the heating pole 308 outstanding to the right on partition 304, with sampling absorber to
It moves left, core 1002 is heated bar 308 and withstands, that is to say, that core 1002 moves right relative to outer cylindrical portion 1001, it is known that
Absorber T connector 107 is sampled to be stopped by the second end of sliding slot 109.
When sampling absorber continues to be moved to the left, that is, the sampling absorber is inserted into the hot chamber of the Thermal desorption chamber device
303, the adsorption section 102 of the sampling absorber can not move right relative to outer cylindrical portion 1001, at this point, core 1002 and outer
Canister portion 1001 is moved to the left together, thus, adsorption section 102 will apply force to heating pole 308 and make heating pole 308 together with partition
304 towards movement on the left of the cavity of Thermal desorption chamber device, until the Thermal desorption chamber device is in the third state.In Thermal desorption chamber
When device is in the third state, the first sealing ring of outer cylindrical portion 1035 on the outer peripheral surface of 1001 first end of outer cylindrical portion is in the hot chamber
It is slided in 303 along the inner wall of the hot chamber 303, until being located between carrier gas inlet 301 and carrier gas outlet 302.
As shown in figure 5, carrier gas can enter from carrier gas port at this point, the partition 304 is located at the left side of carrier gas outlet 302
Thermal desorption chamber；Also, carrier gas can not be from outer cylindrical portion 1001 and Thermal desorption chamber device by the blocking of the first sealing ring of outer cylindrical portion 1035
Cavity between pass through, can only enter sampling absorber adsorption section 102, subsequently enter sample parsing channel 110, from sample solution
The outlet discharge in channel 110 is analysed, finally from 302 discharge of carrier gas outlet.
In resolving, heating pole 308 can increase temperature, to directly increase the adsorption section 102 of sampling absorber
Temperature, promote the sample that is enriched on adsorption section 102 to be detached from adsorption section 102.Meanwhile the temperature regulating device of hot chamber 303 increases hot chamber
303 temperature, so that the temperature in hot chamber 303 is maintained at required temperature, the sample being enriched on adsorption section 102 and/or sampling head 101
The accelerated parsing of product.At this point, carrier gas enters from carrier gas inlet 301, sample is taken away across adsorption section 102, is finally exported by carrier gas
302 are transported to analytical equipment, such as ionic migration spectrometer.
In embodiment of the disclosure, due in sampling process silica gel sampling head 101 and adsorbent be in room temperature, favorably
In the acquisition and enrichment of sample；And since the intracavitary temperature of Thermal desorption can control at 80 DEG C~300 DEG C in desorption process
Range, the sorbent material being pushed into Thermal desorption chamber are heated rapidly, and are conducive to the precipitation of sample being adsorbed in adsorbent
Or be detached from, while preheated carrier gas parse it is intracavitary can be mixed rapidly with the sample gas of precipitation, sample by carrier gas effectively
It takes Thermal desorption chamber out of, into analytical equipment, such as is transported to ion mobility spectrometry/chromatography-ion mobility spectrometry and is separated
Detection.
In one embodiment, heater can also be set in partition 304 to assist increasing the temperature of adsorption section 102.
In one embodiment, the periphery of outer cylindrical portion 1001 further includes stopper section 131, and the stopper section 131 is configured to
The Thermal desorption chamber device can abut the adiabatic disks 305 of Thermal desorption chamber device to prevent sampling from adsorbing when being in the third state
Device continues mobile towards Thermal desorption chamber device first end.Setting stopper section 131 is advantageous, when stopper section 131 abuts adiabatic disks
When 305, that is, show that sampling absorber is pushed in place, Thermal desorption chamber device is in the third state, can start Thermal desorption.This
Outside, in one embodiment, stopper section 131 can also be used as driving part, for example, stopper section 131 is driven using driving motor,
So that sampling absorber is in the intracavitary movement of Thermal desorption.
In one embodiment, the sampling absorber includes slidably lantern ring 106, and 106 sets of the slidably lantern ring exists
1001 periphery of outer cylindrical portion, and can be engaged to the Thermal desorption chamber device the cavity second end near bayonet in,
Outer cylindrical portion 1001 is allowed to move in Thermal desorption chamber device simultaneously.
In the disclosure, multiple sealing rings are provided with, these sealing rings can be formed by fluorubber resistant to high temperature.These are close
Seal is replaceable.
In embodiment of the disclosure, the adsorbent in adsorption section 102 may be adapted to activated carbon or Tenax-TA etc..
In embodiment of the disclosure, pump 201 can be used, pump 201 for example can choose KNF NMP 015B.
Although some embodiments of this totality inventional idea have been shown and have illustrated, those of ordinary skill in the art will be managed
Solution can make a change these embodiments in the case where the principle and spirit without departing substantially from this totality inventional idea, this is practical new
The range of type is limited with claim and their equivalent.
Claims (22)
1. a kind of sampling absorber, comprising: there is the outer cylindrical portion of outer cylindrical portion first end and outer cylindrical portion second end and be placed in outer cylindrical portion
Interior core, the core have core first end and core second end, and outer cylindrical portion first end and core first end are located at same
Side, wherein
Core includes configuring to connect to the adsorption section of adsorption sample and core body portion, adsorption section with core body portion；
Being dimensioned so as between outer cylindrical portion and core there are gap for outer cylindrical portion and core, can be by institute with the gas outside allowing
It states adsorption section and enters gap, be then discharged from the downstream part in the gap.
2. sampling absorber as described in claim 1, wherein the outer cylindrical portion includes bypass passageways, the bypass passageways packet
The bypass inlets being arranged spatially to one another and bypass passageways outlet are included, bypass inlets export close than bypass passageways
Outer cylindrical portion first end；And
The sampling absorber further includes the suction for being arranged between the core and outer cylindrical portion and being fixed on core outer circumferential face
Sealing in the second inner seal ring of the first inner seal ring of adnexa and absorber, first inner seal ring of absorber and absorber second
Circle is spaced apart and is configured to: the core being allowed to keep the core and the outer cylinder while movement in the outer cylindrical portion
Sealing between portion, and in the case where sampling absorber is in first state, in the first inner seal ring of absorber and absorber second
Sealing ring is between bypass inlets and bypass passageways outlet, the first inner seal ring of absorber close to bypass inlets,
The second inner seal ring of absorber is exported close to bypass passageways, and the gas for entering the gap from the adsorption section is adsorbed device first
Inner seal ring stop thus enter bypass inlets, from bypass passageways export flow out, into the downstream in the gap.
3. sampling absorber as claimed in claim 2, wherein it is mobile relative to the outer cylindrical portion by the core, so that
Sampling absorber is under the second state: first inner seal ring of absorber is located at bypass inlets and bypass passageways outlet
Between, the second inner seal ring of absorber is located at the side far from the outer cylindrical portion first end of bypass passageways outlet, so that from side
The gas of circulation passage outlet outflow, which is adsorbed the second inner seal ring of device, to be stopped to be unable to the downstream part into the gap.
4. sampling absorber as described in claim 1, wherein the outer cylindrical portion includes sample parsing channel, the sample solution
Analysis channel can allow for gas to flow to outside outer cylindrical portion from adsorption section；
The sampling absorber further includes the suction for being arranged between the core and outer cylindrical portion and being fixed on core outer circumferential face
Sealing in the second inner seal ring of the first inner seal ring of adnexa and absorber, first inner seal ring of absorber and absorber second
Circle is spaced apart and is configured to: the core being allowed to keep the core and the outer cylinder while movement in the outer cylindrical portion
Sealing between portion, and in the case where sampling absorber is in first state, the entrance in sample parsing channel is located at absorber
Between the second inner seal ring of first inner seal ring and absorber, gas is adsorbed close in the first inner seal ring of device and absorber second
Seal blocking not can enter sample parsing channel.
5. sampling absorber as claimed in claim 4, wherein it is mobile relative to the outer cylindrical portion by the core, so that
Sampling absorber is under the second state, and first inner seal ring of absorber and the second inner seal ring of absorber are located at sample solution
The side far from the outer cylindrical portion first end of the entrance in channel is analysed, so that gas can only enter sample parsing from the gap and lead to
Road, and channel is parsed by the sample and is discharged from outer cylindrical portion.
6. sampling absorber according to any one of claims 1 to 5, wherein the core body portion includes absorber sampling
Channel, the entrance of absorber sampling channel are connected to the gap, and the outlet of the absorber sampling channel is exposed to described outer
Except canister portion.
7. sampling absorber according to any one of claims 1 to 5, wherein sampling absorber further includes that absorber third is close
Seal, is fixed on the outer peripheral surface of core first end, and absorber third sealing ring allows absorber to protect when relatively moving with outer cylindrical portion
Hold the sealing between absorber and outer cylindrical portion.
8. sampling absorber according to any one of claims 1 to 5, wherein sampling absorber further includes being removably installed
Sampling head in outer cylindrical portion end, the sampling head configuration is to scrape inspected object so that sample is detached from object to be checked.
9. sampling absorber as claimed in claim 8, wherein sampling head is formed by silicon rubber, to be detected so as to adhere to
Sample；And/or adsorbent is set in sampling head, to adsorb sample to be tested.
10. sampling absorber according to any one of claims 1 to 5, wherein sieve knot is arranged in the both ends of the adsorption section
Structure, to filter bulky grain solid, and the mesh structure and adsorption section are detachably connected, and the mesh structure will adsorb
Agent is fixed in adsorption section.
11. sampling absorber as claimed in claim 3 or 5, wherein core body portion it is opposite with core body portion first end
Core body portion second end outside include sampling absorber T connector, the outer cylindrical portion include be located at outer cylindrical portion second end in
The sliding slot in portion enables sampling absorber T connector to move in the sliding slot, the mobile row of the sampling absorber T connector
Journey is limited by the sliding slot, also, samples first of sampling absorber T connector contact sliding slot when absorber is under first state
End, the second end of sampling absorber T connector contact sliding slot when sampling absorber is under the second state, the second end of sliding slot is than sliding
Second end of the first end of slot close to core body portion.
12. a kind of Thermal desorption chamber device, including cavity, the cavity limits Thermal desorption chamber, and the cavity includes cavity first end
The cavity second end of the opening opposite with cavity first end；The cavity includes hot chamber and cold chamber, and the hot chamber and cold chamber are logical
Cross adiabatic disks connection；Wherein, sampling absorber of any of claims 1-11 can be filled by the Thermal desorption chamber
The cavity second end of the opening for the cavity set is inserted into the cold intracavitary of the Thermal desorption chamber device.
13. Thermal desorption chamber device as claimed in claim 12, wherein the Thermal desorption chamber device further includes partition, the partition
Bulkhead seal circle is set between the cavity, and the bulkhead seal circle is configured to allow for partition can be described in the Thermal desorption chamber
The sealing between partition and the cavity is kept while heat is intracavitary mobile；
Wherein the cavity includes carrier gas inlet and carrier gas outlet so that under the third state of Thermal desorption chamber device, it is described every
Plate is located at the side far from the cavity first end of carrier gas outlet, and carrier gas can enter Thermal desorption chamber from carrier gas inlet, from load
Gas outlet discharge.
14. Thermal desorption chamber device as claimed in claim 13, wherein partition passes through the cavity of spring and the cavity the
One end connection, the spring are configured to the separate chamber for keeping partition to be located at carrier gas outlet in the case where no external force
The side of body first end, and allow under external force, the partition compression spring is simultaneously mobile towards the cavity first end,
So that the bulkhead seal circle is located at the side of the close cavity first end of carrier gas inlet.
15. Thermal desorption chamber device according to claim 13 or 14, wherein Thermal desorption chamber device further includes heating pole, described to add
Hot rod is installed to the partition, and prominent from the partition towards cavity second end.
16. Thermal desorption chamber device as claimed in claim 12, wherein the hot chamber includes temperature regulating device, the temperature regulating device by
For increasing the heater of hot cavity temperature and measuring the temperature sensor composition of hot cavity temperature；And insulation portion, be configured to every
Outside heat leakage to Thermal desorption chamber device in insulation chambers.
17. appointing in sampling absorber and claim 12-16 described in any one of a kind of sampling module, including claim 1-11
One Thermal desorption chamber device, wherein the sampling absorber can pass through the opening of the cavity of the Thermal desorption chamber device
Cavity second end is inserted into the cold intracavitary of the Thermal desorption chamber device, so that the outer cylindrical portion first end of the outer cylindrical portion of sampling absorber is logical
The first sealing ring of outer cylindrical portion crossed on the outer peripheral surface of outer cylindrical portion first end abuts the adiabatic disks.
18. sampling module as claimed in claim 17, wherein when the sampling absorber is inserted into the Thermal desorption chamber device
Cold intracavitary, the heating pole of Thermal desorption chamber device contacts and applies force to the adsorption section of the sampling absorber, so that adsorption section exists
It is moved in the outer cylindrical portion, until sampling absorber T connector is stopped by the second end of sliding slot, sampling absorber is in the second shape
State.
19. sampling module as claimed in claim 18, wherein the sampling absorber is inserted into the Thermal desorption chamber device
Hot chamber make heating pole together with partition towards Thermal desorption chamber so that the adsorption section of the sampling absorber applies force to heating pole
The cavity first end of the cavity of device is mobile, so that the Thermal desorption chamber device is in the third state；Wherein outer cylindrical portion first end
Outer peripheral surface on the first sealing ring of outer cylindrical portion slided in the intracavitary inner wall along the hot chamber of the heat, until being located at carrier gas inlet
Between carrier gas outlet.
20. sampling module as claimed in claim 19, wherein the periphery of outer cylindrical portion further includes stopper section, the stopper section configuration
It is inhaled at the adiabatic disks of Thermal desorption chamber device can be abutted when the Thermal desorption chamber device is in the third state to prevent to sample
Adnexa continues mobile towards Thermal desorption chamber device first end.
21. sampling module as claimed in claim 17, wherein the sampling absorber includes slidably lantern ring, it is described slidably
Cover ring set in outer canister portion periphery, and can be engaged to the Thermal desorption chamber device the cavity second end near bayonet
It is interior, while outer cylindrical portion being allowed to move in Thermal desorption chamber device.
22. a kind of analytical equipment, including sampling module described in any one of claim 17-21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924353.6U CN208187797U (en) | 2017-12-29 | 2017-12-29 | Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924353.6U CN208187797U (en) | 2017-12-29 | 2017-12-29 | Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208187797U true CN208187797U (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721924353.6U Withdrawn - After Issue CN208187797U (en) | 2017-12-29 | 2017-12-29 | Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment |
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| CN (1) | CN208187797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132166A (en) * | 2017-12-29 | 2018-06-08 | 清华大学 | Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment |
-
2017
- 2017-12-29 CN CN201721924353.6U patent/CN208187797U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132166A (en) * | 2017-12-29 | 2018-06-08 | 清华大学 | Sample absorber, Thermal desorption chamber device, sampling module and analytical equipment |
| GB2571195A (en) * | 2017-12-29 | 2019-08-21 | Univ Tsinghua | Sampling adsorber, heat desorption chamber device, sampling apparatus and analyzer apparatus |
| GB2571195B (en) * | 2017-12-29 | 2020-08-19 | Univ Tsinghua | Sampling adsorber and sampling apparatus |
| CN108132166B (en) * | 2017-12-29 | 2024-03-12 | 清华大学 | Sampling adsorber, thermal analysis chamber device, sampling module and analysis equipment |
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