CN207908431U - The gas circuit flow-monitoring device and ionic migration spectrometer of ionic migration spectrometer - Google Patents
The gas circuit flow-monitoring device and ionic migration spectrometer of ionic migration spectrometer Download PDFInfo
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- CN207908431U CN207908431U CN201820127841.2U CN201820127841U CN207908431U CN 207908431 U CN207908431 U CN 207908431U CN 201820127841 U CN201820127841 U CN 201820127841U CN 207908431 U CN207908431 U CN 207908431U
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Abstract
The disclosure provides a kind of the gas circuit flow-monitoring device and ionic migration spectrometer of ionic migration spectrometer.This disclosure relates to detecting instrument field.The gas circuit flow-monitoring device of the ionic migration spectrometer includes：Transference tube has carrier gas air inlet, the air exit of the carrier gas of drift gas air inlet, sample gas；Sensor group, including：It is connected to the drift gas air inlet quantity sensor of drift gas air inlet, the carrier gas air inlet quantity sensor of carrier gas air inlet is connected to, is connected to the exhaust quantity sensor of air exit；Monitoring device is connected to the sensor group, the drift gas air inflow of monitoring drift gas air inlet quantity sensor sensing, the capacity of the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust quantity sensor sensing.The disclosure allows the tolerance of ionic migration spectrometer to control the practical gas circuit traffic conditions of reflection, improves flow control accuracy.
Description
Technical field
This disclosure relates to detecting instrument, and in particular to the gas circuit flow-monitoring device and ion of a kind of ionic migration spectrometer move
Move spectrometer.
Background technology
Ionic migration spectrometer is as a kind of quick detecting instrument, in safety detections such as drugs, explosive, chemical warfare agents
Aspect largely uses.Traditional ionic migration spectrometer is easily saturated, for the more difficult separation of complex sample.Existing solution is to make
Gaseous sample molecule grows the capillary column of the organic substance of polarized or nonpolar coating by a section surface, as ion
The pre-separation processor of mobility spectrometer, single component is separated by complex mixture.In this way, being formed gas-chromatography and ion
Migration spectrum is combined spectrometer.
In gas-chromatography and ion mobility spectrometry combination spectrometer, there are various gas circuits.The variation meeting of gas flow in various gas circuits
The detection quality of lowering apparatus.
In the tolerance control device of existing ionic migration spectrometer, by the flowmeter with regulating valve, to regulate and control various gas
Assignment of traffic in road.But depended in advance to the estimation of flow using flowmeter, actually often precision is not high.
Utility model content
One purpose of the disclosure is that allowing the tolerance of ionic migration spectrometer to control reflects practical gas circuit traffic conditions, improves
Flow control accuracy.
According to the disclosure in a first aspect, disclose a kind of gas circuit flow-monitoring device of ionic migration spectrometer, including：Ion
Migration tube has carrier gas air inlet, the air exit of the carrier gas of drift gas air inlet, sample gas；Sensor group, including：Connection
To drift gas air inlet drift gas air inlet quantity sensor, be connected to carrier gas air inlet carrier gas air inlet quantity sensor, be connected to exhaust
The exhaust quantity sensor of outlet；Monitoring device is connected to the sensor group.
According to an example embodiment of the disclosure, the ionic migration spectrometer is double mode ionic migration spectrometer.It is described
Drift gas air inlet includes holotype drift gas air inlet, negative mode drift gas air inlet, and the air exit includes that holotype is vented out
Mouth, negative mode air exit.The drift gas air inlet quantity sensor include holotype drift gas air inlet quantity sensor, negative mode float gas into
Gas quantitative transducer, the exhaust quantity sensor include holotype exhaust quantity sensor, negative mode exhaust quantity sensor.
According to an example embodiment of the disclosure, the gas circuit flow-monitoring device further includes gas-chromatography module, institute
It includes nitrogen carrier gas entrance to state gas-chromatography module, and the sensor group further includes being connected to the nitrogen entrance of nitrogen carrier gas entrance
Quantity sensor.
According to an example embodiment of the disclosure, the gas-chromatography module further includes concentration overload diffluence pass, described
Sensor group further includes being connected to the shunting quantity sensor of the concentration overload diffluence pass.
According to the second aspect of the disclosure, a kind of ionic migration spectrometer is disclosed, including gas circuit flow-monitoring device, the gas
Road flow-monitoring device includes：Transference tube has carrier gas air inlet, the exhaust of the carrier gas of drift gas air inlet, sample gas
Outlet；Sensor group, including：It is connected to the drift gas air inlet quantity sensor of drift gas air inlet, is connected to the carrier gas of carrier gas air inlet
Air inlet quantity sensor, the exhaust quantity sensor for being connected to air exit；Monitoring device is connected to the sensor group.
Due in embodiment of the disclosure, drift gas being connected separately with drift gas air inlet, carrier gas air inlet, air exit
Air inlet quantity sensor, carrier gas air inlet quantity sensor, exhaust quantity sensor, respectively the drift gas air inlet of sensing ionic migration spectrometer in real time
Flowmeter only is arranged in drift gas air inlet, carrier gas air inlet, air exit with the prior art in amount, carrier gas air inflow, capacity
The assignment of traffic for adjusting each road is compared, and the control to flow can be made to reflect currently practical gas circuit traffic conditions in real time, more accurately
Ground carries out gas circuit flow control.
Other characteristics and advantages of the disclosure will be apparent from by the following detailed description, or partially by the disclosure
Practice and acquistion.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
It is open.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other target, feature and the advantage of the disclosure will
It becomes more fully apparent.
Fig. 1 shows the structure of the gas circuit flow-monitoring device of the ionic migration spectrometer according to one example embodiment of the disclosure
Figure.
Fig. 2 shows the knots according to the gas circuit flow-monitoring device of the ionic migration spectrometer of another example embodiment of the disclosure
Composition.
Fig. 3 shows the knot of the gas circuit flow-monitoring device of the ionic migration spectrometer according to another example embodiment of the disclosure
Composition.
Fig. 4 shows the stream of the gas circuit flux monitoring method of the ionic migration spectrometer according to another example embodiment of the disclosure
Cheng Tu.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, providing these example embodiments makes the disclosure
Description will be more full and complete, and the design of example embodiment is comprehensively communicated to those skilled in the art.Attached drawing
The only schematic illustrations of the disclosure are not necessarily drawn to scale.Identical reference numeral indicates same or like in figure
Part, thus repetition thereof will be omitted.
In addition, described feature, structure or characteristic can be incorporated in one or more examples in any suitable manner
In embodiment.In the following description, many details are provided to provide filling to the example embodiment of the disclosure
Sub-argument solution.It will be appreciated, however, by one skilled in the art that the specific detail can be omitted with technical solution of the disclosure
In it is one or more, or other methods, constituent element, step may be used etc..In other cases, it is not shown in detail or retouches
State known features, method, realization or operation to avoid a presumptuous guest usurps the role of the host and so that all aspects of this disclosure thicken.
Some block diagrams shown in attached drawing are functional entitys, not necessarily must be with physically or logically independent entity phase
It is corresponding.Software form may be used to realize these functional entitys, or in one or more hardware modules or integrated circuit in fact
These existing functional entitys, or these functions reality is realized in heterogeneous networks and/or processor device and/or microcontroller device
Body.
One purpose of the disclosure is that allowing the tolerance of ionic migration spectrometer to control reflects practical gas circuit traffic conditions, improves
Flow control accuracy.Gas circuit flow-monitoring device according to a kind of ionic migration spectrometer of an embodiment of the present disclosure includes：From
Sub- migration tube has carrier gas air inlet, the air exit of the carrier gas of drift gas air inlet, sample gas；Sensor group, including：Even
It is connected to the drift drift gas air inlet quantity sensor of gas air inlet, the carrier gas air inlet quantity sensor for being connected to carrier gas air inlet, the row of being connected to
The exhaust quantity sensor of gas outlet；Monitoring device is connected to the sensor group, the drift of monitoring drift gas air inlet quantity sensor sensing
The capacity of gas air inflow, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust quantity sensor sensing.With drift gas air inlet
Drift gas air inlet quantity sensor that mouth, carrier gas air inlet, air exit are separately connected, carrier gas air inlet quantity sensor, capacity sensing
Device senses drift gas air inflow, carrier gas air inflow, the capacity of ionic migration spectrometer in real time respectively.With the prior art only drift gas into
Gas port, carrier gas air inlet, air exit setting flowmeter are compared to adjust the assignment of traffic on each road, can make the control to flow
Reflect currently practical gas circuit traffic conditions in real time, more accurately carries out gas circuit flow control.
Fig. 1 shows the frame of the gas circuit flow-monitoring device of the ionic migration spectrometer according to one example embodiment of the disclosure
Figure.
As shown in Figure 1, according to the gas circuit flow-monitoring device packet of the ionic migration spectrometer of one example embodiment of the disclosure
Include transference tube 600, sensor group 600, monitoring device 201.
Transference tube 600 is the main space being detected to sample gas.Transference tube 600 has drift gas air inlet
Carrier gas air inlet 607, the air exit 600 of the carrier gas of mouth 119, sample gas.Drift gas air inlet 119 is the drift gas of detection
Inlet port.Carrier gas air inlet 607 is the inlet port for the carrier gas (such as air) for carrying sample gas.Air exit 600 be drift gas and
Carry the carrier gas mixing of sample gas, the outlet of the detected rear mixed gas of sample gas.
Sensor group 600 includes：Be connected to the drift gas air inlet quantity sensor 104 of drift gas air inlet 119, be connected to carrier gas into
The carrier gas air inlet quantity sensor 103 of gas port 607, the exhaust quantity sensor 105 for being connected to air exit 600.With drift gas air inlet
119, drift gas air inlet quantity sensor 104, the carrier gas air inlet quantity sensor that carrier gas air inlet 607, air exit 600 are separately connected
103, exhaust quantity sensor 105 distinguishes drift gas air inflow, carrier gas air inflow, the capacity of real-time transference tube.
Monitoring device 201 is connected to the sensor group 600, the drift gas of 104 sensing of monitoring drift gas air inlet quantity sensor into
The capacity of carrier gas air inflow, the exhaust sensing of quantity sensor 105 that tolerance, carrier gas air inlet quantity sensor 103 sense.Monitoring device
It can be made of processing chip, can also be made of field programmable gate array (FPGA), etc..
Optionally, transference tube 600 further includes ionization area 111, drift region 113 and detecting area 115 (such as Faraday cup
Detecting area).After sample gas to be detected enters transference tube 600 with the carrier gas of carrier gas air inlet 607, ionization area 111 makes
Sample gas ionization goes out cation or anion, and cation or anion are under the electric field action of drift region 113 to drift gas air inlet
It is moved at mouth 119, the drift gas entered with drift gas air inlet 119 is mixed.It is being visited with the drift mixed mixed gas of gas
It is detected to survey area 115.The parameter that the other parts of result of that probe coupled ion mobility spectrometer detect is used to determine sample together
The ingredient of this gas, such as whether be for identification drugs, explosive etc..
It should be appreciated that ionization area 111, drift region 113 and detecting area 115 are not required in that.In some embodiments, this
It is a little partly to can be omitted or replaced with other regions with similar functions.
Since the drift gas air inflow being separately connected with drift gas air inlet 119, carrier gas air inlet 607, air exit 121 senses
The drift gas air inlet of sensing ionic migration spectrometer in real time respectively of device 104, carrier gas air inlet quantity sensor 103, exhaust quantity sensor 105
Amount, carrier gas air inflow, capacity are only divided in drift gas air inlet 119, carrier gas air inlet 607, air exit 121 with the prior art
Not She Zhi flowmeter compared to adjust the assignment of traffic on each road, the control to flow can be made to reflect currently practical gas circuit stream in real time
Amount situation more accurately carries out gas circuit flow control.
In one embodiment, gas air inlet 119, carrier gas air inlet 607, air exit will be floated with polyfluortetraethylene pipe
121 are connected respectively to drift gas air inlet quantity sensor 104, carrier gas air inlet quantity sensor 103, exhaust quantity sensor 105.In other realities
It applies in example, polyfluortetraethylene pipe can also be replaced with PE hoses, stainless steel capillary.
In one embodiment, as shown in Figure 1, collection module 301 is generated by 302 collecting sensor group 500 of electric line
Electric signal, and monitoring device 201 is reported to by electric line 202.Power supply adaptor 401 passes through power interface 402 and power supply
Connection is powered by electric line 403 to sensor group 500.However, those skilled in the art should understand that, they are for realizing this public affairs
It opens not required.Those skilled in the art can cancel them or be replaced with other substitutions of elements.
In one embodiment, the drift gas air inflow of monitoring drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the capacity of exhaust quantity sensor sensing, specifically include：Displaying drift gas air inlet quantity sensor sensing
Float gas air inflow, the capacity of the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust quantity sensor sensing.
The carrier gas air inflow of drift gas air inflow, carrier gas air inlet quantity sensor sensing that drift gas air inlet quantity sensor is sensed,
Exhaust quantity sensor sensing capacity show after, by ionic migration spectrometer commissioning staff rule of thumb, judge to float
In gas air inflow, carrier gas air inflow, capacity which or which need to increase, which or which need to reduce, and then adjust manually
The opening aperture of section drift gas air inlet 119, carrier gas air inlet 607, air exit 121, is realized to drift gas air inflow, carrier gas air inlet
The adjusting of amount, capacity.
In one embodiment, the drift gas air inflow of displaying drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the capacity of exhaust quantity sensor sensing include：The display for being included with ionic migration spectrometer or being connected outside
The drift gas air inflow of device display drift gas air inlet quantity sensor sensing, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust
The capacity of quantity sensor sensing.
In one embodiment, the drift gas air inflow of displaying drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the capacity of exhaust quantity sensor sensing include：Drift gas air inflow sensing is reported with speaker sound
The capacity of the drift gas air inflow of device sensing, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust quantity sensor sensing.
In one embodiment, the drift gas air inlet quantity sensor 119, the carrier gas air inlet quantity sensor 607, the row
119 periodic, sensed of gas quantitative transducer.The drift gas air inflow of displaying drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the capacity of exhaust quantity sensor sensing include：According to the drift gas air inflow of periodic, sensed, carrier gas
Air inflow and capacity, displaying drift gas air inflow, the dynamic changing curve of carrier gas air inflow and capacity.
This have the advantage that commissioning staff can be according to drift gas air inflow, the dynamic of carrier gas air inflow and capacity
Changing loftier place on change curve, carries out drift gas air inflow, carrier gas air inflow and capacity manually adjust, to
Effectively prevent influence of the broad-minded fluctuation of gas circuit to detection performance.
In addition, embodiment of the disclosure not only can realize that reflection is real in conjunction with drift gas air inflow, carrier gas air inflow, capacity
When situation manual adjusting, additionally it is possible to realize automatic adjustment.In one embodiment, monitoring drift gas air inlet quantity sensor senses
Gas air inflow, the capacity of the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust quantity sensor sensing are floated, it is specific to wrap
It includes：According to the drift gas air inflow, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, exhaust of drift gas air inlet quantity sensor sensing
The capacity of quantity sensor sensing, respectively will drift gas air inflow, carrier gas air inflow, capacity be adjusted to target drift gas air inflow,
Target carrier gas air inflow, target exhaust amount.It is rule of thumb that target, which floats gas air inflow, target carrier gas air inflow, target exhaust amount,
It is worth drift gas air inflow, carrier gas air inflow, the capacity of the accuracy that can improve gas detection.
Specifically, the step for includes：
According to the carrier gas air inlet of the drift gas air inflow, carrier gas air inlet quantity sensor sensing of drift gas air inlet quantity sensor sensing
One in amount, the capacity of exhaust quantity sensor sensing, search preset drift gas air inflow, carrier gas air inflow, capacity pair
Answer relation table；
According to the mapping table, drift gas air inflow, the carrier gas air inflow of adjustment drift gas air inlet quantity sensor sensing pass
Other tolerance in the carrier gas air inflow of sensor sensing, the capacity of exhaust quantity sensor sensing.
Drift gas air inflow, carrier gas air inflow, capacity mapping table obtain in advance according to preset empirical value.For example,
In the case of specific drift gas air inflow, corresponding carrier gas air inflow, capacity are empirically or experimentally determined, to improve gas
The precision of detection.
Fig. 2 shows the frames according to the gas circuit flow-monitoring device of the ionic migration spectrometer of another example embodiment of the disclosure
Figure.
Fig. 1 is the block diagram of the gas circuit flow-monitoring device of the ionic migration spectrometer of single-mode, i.e., only detects sample gas
The cation or anion that ionization goes out.But be detected only for cation or anion, for can simultaneously ionization at
The chemical sample of positive and negative ion can then lose a part of information, be supervised by the gas circuit flow of the double mode ionic migration spectrometer of Fig. 2
Control device can improve the resolution capability of ionic migration spectrometer, reduce rate of false alarm.
As shown in Fig. 2, in this embodiment, the ionic migration spectrometer is double mode ionic migration spectrometer.The drift
Gas air inlet 119 includes holotype drift gas air inlet 609, negative mode drift gas air inlet 608, and the air exit 121 includes just
Pattern air exit 611, negative mode air exit 610.The drift gas air inlet quantity sensor 104 includes that holotype floats gas air inflow
Sensor 504, negative mode drift gas air inlet quantity sensor 502.The exhaust quantity sensor 105 includes that holotype is vented quantity sensor
505, negative mode is vented quantity sensor 501.
In one embodiment, the gas circuit flow-monitoring device further includes gas-chromatography module 700, the gas-chromatography
Module 700 includes nitrogen carrier gas entrance 702, the sensor group 500 further include be connected to the nitrogen of nitrogen carrier gas entrance 702 into
Enter quantity sensor 506, the monitoring device 201 monitors the nitrogen inlet that nitrogen enters the sensing of quantity sensor 506.
Optionally, ionization area 111 includes holotype ionization area 601 and negative mode ionization area 602.Drift region 113 includes just
Pattern drifting area 603 and negative mode drift region 604.Detecting area 115 (such as Faraday cup detecting area) includes holotype detecting area
605 and negative mode detecting area 606.
Easily be saturated for ionic migration spectrometer, complex sample more difficult separation the shortcomings that, so that gaseous sample molecule is passed through one section
The capillary column 701 of the organic substance of surface growth polarized or nonpolar coating, pre- point as ionic migration spectrometer 600
From processor, complex mixture is separated into single component.Then, gaseous sample with nitrogen carrier gas entrance 702 nitrogen carrier gas
Into transference tube 600, the carrier gas entered with carrier gas air inlet 607 mixes.
Then, holotype ionization area 601 makes sample gas ionization go out cation.Cation is in holotype drift region 603
It floats to holotype under electric field action and is moved at gas air inlet 609, the drift gas entered with holotype drift gas air inlet 609 carries out
Mixing.It is detected in holotype detecting area 605 with the drift mixed mixed gas of gas.
Negative mode ionization area 602 makes sample gas ionization go out anion.Electric field of the anion in negative mode drift region 604 is made
It is moved at gas air inlet 608 with lower floated to negative mode, the drift gas entered with negative mode drift gas air inlet 608 is mixed.
It is detected in negative mode detecting area 606 with the drift mixed mixed gas of gas.
In the other parts of the result of detection coupled ion mobility spectrometer of holotype detecting area 605, negative mode detecting area 606
Whether the parameter detected is used to determine the ingredient of sample gas, such as is for identification drugs, explosive etc. together.
In one embodiment, the drift gas air inflow of monitoring drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the capacity of exhaust quantity sensor sensing, specifically include：Show that holotype floats gas air inlet quantity sensor
The holotype drift gas air inflow of sensing, the negative mode drift gas air inflow of negative mode drift gas air inlet quantity sensor sensing, carrier gas air inlet
The carrier gas air inflow of quantity sensor sensing, holotype capacity, the negative mode capacity of holotype exhaust quantity sensor sensing pass
The negative mode capacity of sensor sensing.
Show holotype drift gas air inflow, the negative mode drift gas air inflow sensing of holotype drift gas air inlet quantity sensor sensing
Negative mode drift gas air inflow, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, the holotype of device sensing are vented quantity sensor
After the holotype capacity of sensing, the negative mode capacity of negative mode exhaust quantity sensor sensing, by the tune of ionic migration spectrometer
Examination personnel rule of thumb, judge holotype drift gas air inflow, negative mode drift gas air inflow, carrier gas air inflow, holotype exhaust
Amount, in negative mode capacity which or which need to increase, which or which need to reduce, and then adjust holotype drift gas manually
The opening aperture of air inlet, negative mode drift gas air inlet, carrier gas air inlet, holotype air exit, negative mode air exit, it is real
The adjusting of the roads Xian Duige tolerance.
In one embodiment, the holotype floats gas air inlet quantity sensor, the negative mode floats gas air inlet quantity sensor,
The carrier gas air inlet quantity sensor, holotype exhaust quantity sensor, the negative mode capacity cycle sensor sexuality are surveyed.
Show that the holotype drift gas air inflow of holotype drift gas air inlet quantity sensor sensing, negative mode float gas air inlet quantity sensor sensing
Negative mode is floating gas air inflow, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, holotype exhaust quantity sensor sensing just
Pattern capacity, the negative mode capacity of negative mode exhaust quantity sensor sensing include：It is floated according to the holotype of periodic, sensed
Gas air inflow, negative mode drift gas air inflow, carrier gas air inflow, holotype capacity, negative mode capacity, displaying holotype float gas
The dynamic changing curve of air inflow, negative mode drift gas air inflow, carrier gas air inflow, holotype capacity and negative mode capacity.
In addition, embodiment of the disclosure not only can in conjunction with holotype drift gas air inflow, negative mode drift gas air inflow, carrier gas into
Tolerance, holotype capacity, negative mode capacity realize the manual adjusting of reflection real time status, additionally it is possible to realize automatic adjustment.
In one embodiment, the drift gas air inflow of monitoring drift gas air inlet quantity sensor sensing, the load of carrier gas air inlet quantity sensor sensing
The capacity of gas air inflow, exhaust quantity sensor sensing, specifically includes：Gas air inlet quantity sensor sensing is being floated according to holotype just
Pattern floats gas air inflow, the negative mode drift gas air inflow of negative mode drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the holotype capacity of holotype exhaust quantity sensor sensing, negative mode exhaust quantity sensor sensing
Negative mode capacity, respectively by holotype drift gas air inflow, negative mode drift gas air inflow carrier gas air inflow, carrier gas air inflow,
Holotype capacity, negative mode capacity are adjusted to target holotype drift gas air inflow, the drift gas air inflow carrier gas of target negative mode
Air inflow, target carrier gas air inflow, target holotype capacity, target negative mode capacity.
Specifically, in one embodiment, the step for includes：
Holotype drift gas air inflow, the negative mode drift gas air inflow sensing of gas air inlet quantity sensor sensing are floated according to holotype
Holotype drift gas air inflow, the carrier gas air inflow of carrier gas air inlet quantity sensor sensing, the holotype of device sensing are vented quantity sensor
One in the holotype capacity of sensing, the negative mode capacity of negative mode exhaust quantity sensor sensing, lookup is preset just
Pattern floats gas air inflow, negative mode drift gas air inflow, carrier gas air inflow, holotype capacity, negative mode capacity correspondence
Table；
According to the mapping table, drift gas air inflow, the carrier gas air inflow of adjustment drift gas air inlet quantity sensor sensing pass
Holotype drift gas air inlet quantity sensor senses just in the carrier gas air inflow of sensor sensing, the capacity of exhaust quantity sensor sensing
Pattern floats gas air inflow, the holotype drift gas air inflow of negative mode drift gas air inlet quantity sensor sensing, carrier gas air inlet quantity sensor
The carrier gas air inflow of sensing, the holotype capacity of holotype exhaust quantity sensor sensing, negative mode exhaust quantity sensor sensing
Negative mode capacity in other tolerance.
Fig. 3 shows the frame of the gas circuit flow-monitoring device of the ionic migration spectrometer according to another example embodiment of the disclosure
Figure.Compared with Fig. 2, the gas-chromatography module 700 further includes concentration overload diffluence pass 703, and the sensor group 500 further includes
It is connected to the shunting quantity sensor 507 of the concentration overload diffluence pass 703, the monitoring shunting quantity sensor of the monitoring device 201
The concentration of specimens of 507 sensings.
By adjusting the aperture of nitrogen carrier gas entrance 702, it is only capable of adjusting the tolerance of the carrier gas of sample gas, sample can not be adjusted
The concentration of this gas.Diffluence pass 703 is overloaded by the way that concentration is arranged near nitrogen carrier gas entrance 702, sample gas can be adjusted
Concentration.
In one embodiment, the concentration of specimens of monitoring shunting quantity sensor sensing specifically includes：It is sensed according to shunt volume
The concentration of specimens of device sensing, adjustment concentration overload 703 deflation bore of diffluence pass.For example, usually, concentration is overloaded diffluence pass 703 and is closed
It closes.When the concentration that shunting quantity sensor 507 detects is more than first threshold, concentration overload diffluence pass 703 is opened.Work as shunting
When the concentration that quantity sensor 507 detects is less than second threshold, concentration overload diffluence pass 703 is closed.
In one embodiment, a kind of ionic migration spectrometer is additionally provided, including gas circuit traffic monitoring as described above fills
It sets.
As shown in figure 4, according to one embodiment, a kind of gas circuit flux monitoring method of ionic migration spectrometer is additionally provided,
Including：
The carrier gas air inlet of step 901, drift the gas air inflow, carrier gas air inlet for floating gas air inlet of sensing transference tube
Amount, the capacity of air exit；
Drift gas air inflow, carrier gas air inflow, the capacity that step 902, monitoring sense.
In one embodiment, step 902 specifically includes：
Show the drift gas air inflow, carrier gas air inflow, the capacity that sense of sensing.
In one embodiment, drift gas air inflow, carrier gas air inflow, the capacity sensed is monitored, is specifically included：
According to drift gas air inflow, carrier gas air inflow, the capacity of sensing, respectively by drift gas air inflow, carrier gas air inflow, row
Tolerance is adjusted to target drift gas air inflow, target carrier gas air inflow, target exhaust amount.
In one embodiment, drift gas air inflow, carrier gas air inflow, capacity are adjusted to target respectively and float gas air inlet
Amount, target carrier gas air inflow, target exhaust amount, specifically include：
According to one in the drift gas air inflow, carrier gas air inflow, capacity of sensing, search preset drift gas air inflow,
Carrier gas air inflow, capacity mapping table；
According to the mapping table, other tolerance in gas air inflow, carrier gas air inflow, capacity are floated in adjustment.
In one embodiment, the transference tube is double mode transference tube.The drift gas air inlet includes just
Pattern floats gas air inlet, negative mode floats gas air inlet, and the air exit includes that holotype air exit, negative mode are vented out
Mouthful.
In one embodiment, gas circuit flux monitoring method further includes：
Sense the nitrogen inlet of the nitrogen carrier gas entrance of gas-chromatography module
Monitor the nitrogen inlet of sensing.
In one embodiment, gas circuit flux monitoring method further includes：
Sense the concentration of specimens of the concentration overload diffluence pass of gas-chromatography module；
Monitor the concentration of specimens of sensing.
In one embodiment, the concentration of specimens of the concentration overload diffluence pass of sensing gas-chromatography module specifically includes：Root
According to the concentration of specimens of sensing, adjustment concentration overloads diffluence pass deflation bore.
In one embodiment, the drift gas air inflow, the carrier gas air inflow, the capacity are by periodic, sensed.
Show that the drift gas air inflow, carrier gas air inflow, the capacity that sense of sensing include：According to the drift gas air inlet of periodic, sensed
Amount, carrier gas air inflow and capacity, displaying drift gas air inflow, the dynamic changing curve of carrier gas air inflow and capacity.
Those skilled in the art will readily occur to the disclosure after considering specification and putting into practice utility model disclosed herein
Other embodiments.The disclosure is intended to cover any variations, uses, or adaptations of the disclosure, these modifications are used
Way or adaptive change follow the general principles of this disclosure and include undocumented in the art known of the disclosure
Common sense or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are under
The claim in face is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (5)
1. a kind of gas circuit flow-monitoring device of ionic migration spectrometer, which is characterized in that including：
Transference tube has carrier gas air inlet, the air exit of the carrier gas of drift gas air inlet, sample gas；
Sensor group, including：Be connected to the drift gas air inlet quantity sensor of drift gas air inlet, be connected to the carrier gas of carrier gas air inlet into
Gas quantitative transducer, the exhaust quantity sensor for being connected to air exit；
Monitoring device is connected to the sensor group.
2. gas circuit flow-monitoring device according to claim 1, which is characterized in that the ionic migration spectrometer is double mode
Ionic migration spectrometer,
The drift gas air inlet includes holotype drift gas air inlet, negative mode drift gas air inlet, and the air exit includes holotype
Formula air exit, negative mode air exit,
The drift gas air inlet quantity sensor includes holotype drift gas air inlet quantity sensor, negative mode drift gas air inlet quantity sensor, institute
It includes holotype exhaust quantity sensor, negative mode exhaust quantity sensor to state exhaust quantity sensor.
3. gas circuit flow-monitoring device according to claim 2, which is characterized in that the gas circuit flow-monitoring device also wraps
Gas-chromatography module is included, the gas-chromatography module includes nitrogen carrier gas entrance, and the sensor group further includes being connected to nitrogen
The nitrogen of carrier gas inlet enters quantity sensor.
4. gas circuit flow-monitoring device according to claim 3, which is characterized in that the gas-chromatography module further includes dense
Load diffluence pass is spent, the sensor group further includes being connected to the shunting quantity sensor of the concentration overload diffluence pass.
5. a kind of ionic migration spectrometer, which is characterized in that include gas circuit flow-monitoring device, the gas circuit flow-monitoring device packet
It includes：
Transference tube has carrier gas air inlet, the air exit of the carrier gas of drift gas air inlet, sample gas；
Sensor group, including：Be connected to the drift gas air inlet quantity sensor of drift gas air inlet, be connected to the carrier gas of carrier gas air inlet into
Gas quantitative transducer, the exhaust quantity sensor for being connected to air exit；
Monitoring device is connected to the sensor group.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110081317A (en) * | 2019-03-18 | 2019-08-02 | 清华大学 | Leak position device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081317A (en) * | 2019-03-18 | 2019-08-02 | 清华大学 | Leak position device and system |
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