CN106053422A - Autonomous heating type atomizer - Google Patents
Autonomous heating type atomizer Download PDFInfo
- Publication number
- CN106053422A CN106053422A CN201610704499.3A CN201610704499A CN106053422A CN 106053422 A CN106053422 A CN 106053422A CN 201610704499 A CN201610704499 A CN 201610704499A CN 106053422 A CN106053422 A CN 106053422A
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- heating wire
- generator
- atomic generator
- atomizer
- type atomizer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
- G01N21/6404—Atomic fluorescence
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Resistance Heating (AREA)
Abstract
The invention discloses an autonomous heating type atomizer, and belongs to the technical field of heavy metal on-line monitoring instruments. The autonomous heating type atomizer comprises an atom generator and an electric heating wire, wherein the upper portion opening of the atom generator is provided with an ignition coil, the atom generator is provided with an inner tube, an outer tube, and a first side port and a second side port led out from the inner tube and the outer tube, the electric heating wire is wound on the outer wall of the upper portion of the atom generator, the atom generator part wound by the electric heating wire is provided with an insulating bushing, an upper end pressing sleeve covers the outer portion of the atom generator, the bottom portion is provided with a support seat, the upper end pressing sleeve and the support seat are assembled into the integration to clamp the atom generator and the insulating bushing inside, the bottom portion of the support seat is provided with a connection column connected to a position adjusting device, and the first side port and the second side port of the atom generator are respectively led out from the side wall of the upper end pressing sleeve. According to the present invention, the inner wall temperature gradient of the atomizer is small, such that the atomization rate is remarkably improved; and with the application of the atomizer to construct the atomic fluorescence instrument, the sensitivity is obviously increased, and the ignition success rate is high.
Description
Technical field
The present invention relates to a kind of atomizer, particularly relate to a kind of autonomous heated type atomizer, belong to heavy metal online
Monitoring instrument technical field.
Background technology
Atomizer is a kind of device that atom is changed into excited state by ground state.Currently used atomizer, is constituted
Part is more, and structure is the compactest, coordinates and requires height, thus cause assembly overall processing high expensive between part；Additionally due to group
Part profile larger structure is the compactest, location deficiency between part, it is impossible to well control the degree of freedom of each part well, often sends out
Coordinate situation not in place, that cannot ensure with the position degree of other inter-modules, the operator of instrument between raw part, need repeatedly
Adjust, could be by the position adjustment of atomizer to more suitably position, regulated efficiency is low, adds the work of operator
Intensity.On the other hand, currently used atomizer uses swimming life-buoy type bathing to install heating wire, the heating to atomic generator on top
Relying primarily on heat radiation, in causing the pipe of atomic generator there is gradient in temperature, and upper end temperature is high, and lower temperature is low, it addition,
Being the gas under room temperature due to constantly flow in pipe, the gas of low temperature, when flowing out the mouth of pipe, can be taken away rapidly atom and occur
Substantial amounts of heat energy on device inwall, causes atomic generator inner wall temperature gradient to increase, and the interior lower temperature of pipe will be far below system and wants
The temperature asked, these unfavorable factors, the atomization efficiency of pipe interior element will be substantially reduced.
Summary of the invention
The present invention is to solve problems of the prior art, it is provided that a kind of atomic generator inner wall temperature is the most steady
Fixed, the atomizer that ignition success rate is high.
In order to achieve the above object, the concrete technical scheme that the present invention uses is as follows:
A kind of autonomous heated type atomizer, including atomic generator and heating wire, atomic generator open topped is provided with igniting
Coil, atomic generator is provided with inner tube, outer tube and the first side ports drawn by inner and outer tubes and the second side ports, institute
Stating heating wire winding in atomic generator external wall of upper portion, atomic generator is wound around the part of heating wire and is provided with insulating bushing；Former
Being covered with upper end clamping sleeve outside electronic generator, bottom is provided with support seat, and upper end clamping sleeve is assembled into one, by atom with supporting seat
Generator and insulating bushing clamp in it, support seat bottom portion and are additionally provided with the connection post being connected with apparatus for adjusting position, and atom occurs
First side ports of device and the second side ports are drawn from the sidewall of upper end clamping sleeve respectively.
The design further of the present invention is:
Being provided with a circle positioning boss in the middle part of the outer wall of atomic generator, insulating bushing lower end is supported location by this positioning boss, absolutely
Edge lining top is by upper end clamping sleeve positioning compression.
It is additionally provided with cushion pad bottom atomic generator and between support seat.
Upper end clamping sleeve, insulating bushing, support seat and cushion pad all use rotary structure, and are co-axially mounted.
Upper end clamping sleeve outer wall is provided with heating wire PCB substrate, and described heating wire PCB substrate electrically connects with heating wire.
Atomic generator and heating wire PCB substrate are integrated formed structure.
Atomic generator is wound around the outer wall of heating wire and is provided with some positioning convex；Or employing helicitic texture.
Insulating bushing, cushion pad and connection post all use adiabatic exotic material to make.
The present invention has the advantage that compared to existing technology
1, existing common atomizer there is problems in that when being machined out that processing process is many, difficulty of processing is big, smart
Degree cannot ensure, especially top heating wire pallet, and for fragile material, during machining, percent defective is high；The processing charges of whole parts
Time laborious, cost is the highest.It is that thin-wall tubular structure is different from existing common atomizer main parts size, apparatus of the present invention master
Body parts use rotary structure, and clamping workpiece number of times is few, and numerous parts only needs clamped one time, gets final product machine-shaping；Totally
Manufacturing procedure is few, and production efficiency is greatly improved, and machining cost is greatly lowered, it is simple to volume production.
2, for ensureing that the precision of main parts size form tolerance, atomic generator and heating wire PCB substrate use one to become
Type technique, to ensure parts shape and size precision.
3, for ensureing the precision of main parts size position of related features, mainly axiality, support seat, cushion pad, insulating bushing
Rotary structure is all used, to ensure quality of fit with upper end clamping sleeve.
4, the atomizer of the present invention, by heating wire winding atomic generator outer wall, by conduction of heat and heat radiation two kinds
Atomic generator wall is heated by mode, adds the built-in ignition coil in top, can realize atomic generator inner wall temperature equal
Even stable, ignition success rate is high, and the oxidized speed of heating wire slows down, and the probability being broken off is greatly reduced；Also by electricity
Heated filament PCB substrate controls the power of heating wire, it is achieved independently heat, and atomic generator inner wall temperature can realize effective control
System, and can realize quickly by temperature stabilization near desired value.
5, in the present invention, cushion pad joining with atomic generator and be connected post and all use high temperature resistant and heat-insulating property is excellent
Good material is made, and heating wire outer ring is provided with resistant to elevated temperatures insulating bushing, so overwhelming majority heat can be locked in atomization
Inside device, while saving the energy, ensure that atomic generator inwall, under the conditions of heating wire is low power, i.e. can reach system
Predetermined temperature；It is little with thermal expansion deformation in order to ensure that atomizer is not corroded in acid and high temperature operating conditions lower component,
In the present invention critical piece all use high temperature resistant, thermal coefficient of expansion is minimum, the material of good mechanical performance is made.
6, the atomizer inner wall temperature gradient of the present invention is little so that atom rate significantly improves, and applies this atomizer
Constructed atomic fluorescence device sensitivity substantially increases, and ignition success rate is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is atomizer and the atomizer of present invention design of application tradition routine, under the same conditions to same
Individual Pb standard sample is measured the signal intensity comparison figure of rear gained.
In figure: 1-heating wire, 11-ignition coil, 2-insulating bushing, 3-atomic generator, 31-the first side ports, 32-
Two side ports, 4-heating wire PCB substrate, 5-upper end clamping sleeve, 6-cushion pad, 7-supports seat, 8-connects post.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in detail.
Embodiment
As depicted in figs. 1 and 2, a kind of autonomous heated type atomizer of the present embodiment, including atomic generator 3 and electric heating
Silk 1, atomic generator 3 open topped is provided with ignition coil 11, and atomic generator 3 is provided with inner tube, outer tube and the first side ports
31 and second side ports 32, the first side ports 31 connects with inner tube, and is drawn by outer tube bottom, and the second side ports 32 is by outer tube
Bottom is drawn.Inner tube top uses enlarging design, outer tube and the second side ports junction to use reducing design；Heating wire 1 is wound around
In atomic generator 3 external wall of upper portion, atomic generator 3 is wound around the part of heating wire 1 and is arranged with insulating bushing 2, and insulating bushing 2 will
Heating wire covers, and the part that atomic generator 3 outer wall is wound around heating wire arranges some positioning convex, in order to heating wire is fine
Location.
Atomic generator 3 is outside is covered with upper end clamping sleeve 5, and bottom is provided with support seat 7, upper end clamping sleeve 5 and support seat 7 groups
Dress is integrated, and covers in inner chamber by atomic generator 3 and insulating bushing 2, and atomic generator 3 open topped and ignition coil 11 reveal
Go out upper end clamping sleeve 5, support and be additionally provided with the connection post 8 being connected with apparatus for adjusting position, the first of atomic generator 3 bottom seat 7
Side ports 31 and the second side ports 32 are drawn from the sidewall of upper end clamping sleeve 5.
In the present embodiment, being provided with a circle positioning boss in the middle part of the outer wall of atomic generator 3, positioning boss is by insulating bushing 2
Lower end supports location, and positioning boss can be connected by axis hole with insulating bushing 2, and insulating bushing 2 top is positioned by upper end clamping sleeve 5
Compress；Bottom atomic generator 3 and support between seat 7 and be additionally provided with cushion pad 6, bottom atomic generator 3 and cushion pad 6 also by
Axis hole connects；Upper end clamping sleeve 5 outer wall is provided with heating wire PCB substrate 4, and heating wire PCB substrate 4 electrically connects with heating wire 1.
The present embodiment be ensure main parts size position of related features precision, mainly axiality, support seat 7, cushion pad 6,
Insulating bushing 2 and upper end clamping sleeve 5 all use rotary structure, and are co-axially mounted, to ensure quality of fit.
The present embodiment is the precision ensureing main parts size form tolerance, and atomic generator 3 and heating wire PCB substrate 4 are adopted
With integral forming process, to ensure parts shape and size precision.
The present embodiment, for making structure the compactest, is conveniently installed, and heating wire PCB substrate 4 and upper end clamping sleeve 5 are passed through spiral shell
Nail is connected into molectron；Atomic generator 3 and insulating bushing 2, and atomic generator 3 coupled by axis hole respectively with cushion pad 6,
Composition thermal insulating mechanism；Support seat 7 and upper end clamping sleeve 5, and support seat 7 coupled by threaded engagement respectively with being connected post 8,
Form the shell of autonomous heated type atomizer device.
In the present embodiment, cushion pad 6 and connection post 8 all use high temperature resistant and that heat-insulating property is excellent material to make, electric heating
It is provided with resistant to elevated temperatures insulating bushing 2 outside silk 1, so can overwhelming majority heat is locked in inside atomizer, save the energy
While ensure that atomic generator inwall, under the conditions of heating wire is low power, i.e. can reach the temperature that system is predetermined；In order to
Guarantee atomizer is under acidity and high temperature operating conditions, and parts are not corroded, and thermal expansion deformation is little, main portion in the present embodiment
Part all use high temperature resistant, thermal coefficient of expansion is minimum, the material of good mechanical performance is made.
The atomizer work process of the present embodiment is as follows:
First, connect the power supply of heating wire 1, atomic generator 3 is carried out preheating in tens of seconds, simultaneously by the ignition coil 11 on top
It is heated to red-hot state.
Secondly, chemical reaction module by element to be analyzed in sample solution, be reduced to volatility covalency gaseous hydride or
Atom vapor, generates hydrogen simultaneously.
Then, the mass flow controller being connected with the first side ports 31 of atomic generator 3 is opened, by high-purity in gas cylinder
Degree argon is as carrier gas, and flow flows out according to the rules, the gaseous hydride generated by chemical module and hydrogen, imports atom and occurs
In the inner tube of device 3, mixed gas is when flowing out atomic generator 3 upper port, and mixed gas lighted by ignition coil 11, now with
The mass flow controller that second side ports 32 of atomic generator 3 is connected is opened gently and is gradually increased aperture, by specified stream
The high purity argon of amount uniformly introduces in the outer tube of atomic generator 3, forms cylindricality ground plane, and the heavy metal element in sample exists
Ar-H flame is formed ground state atom by atomization.
Finally, use hollow cathode lamp to send the light of fixed wave length as excitation source, be directed at Ar-H flame upper end, promote
Make ground state atom absorb the energy of light source and become excited state, excited atom in deactivation process, by the energy that absorbs with
The form of fluorescence discharges, and is assured that the content of tested element in sample by measuring fluorescence intensity.Due to hollow the moon
The individual variation of pole lamp, can cause light-resource fousing point position not fix, can by be connected the joining apparatus for adjusting position of post 8
Regulate the position of atomizer, light source focus is directed at Ar-H flame upper end.
The atomizer of the present embodiment, is wound around atomic generator 3 outer wall by heating wire 1, by conduction of heat and heat radiation two
Atomic generator 3 wall is heated by the mode of kind, and the efficiency of heating surface is high, and 1 need of heating wire are heated to 200 degrees centigrade can be expired
Foot requirement, and in prior art, heating wire uses top mode of heating to generally require and is heated to more than 400 degrees Celsius, this enforcement
In example, wound form heating wire coordinates the built-in ignition coil in top 11 again, can realize atomic generator 3 inner wall temperature uniform and stable,
Ignition success rate is high, and the oxidized speed of heating wire 1 slows down, and the probability being broken off is greatly reduced；Also by heating wire PCB
Substrate controls the power of heating wire, it is achieved independently heat, and atomic generator inner wall temperature can realize effective control, and can be real
Now quickly by temperature stabilization near desired value.
Test case:
As it is shown on figure 3, the atomizer of the atomizer of application tradition routine and present invention design is under the same conditions to same
Individual Pb standard sample is measured the signal intensity comparison figure of rear gained.Wherein the flow of reducing agent and current-carrying liquid is 3.5
Ml/min, carrier gas flux is 300 ml/min, and shield gas flow amount is 800 ml/min, atomizer setting height(from bottom) 8 mm.
Test shows, it is unstable that existing common atomizer exists atomization amount, the shortcoming that atomization efficiency is low, and applies
The fluorescence signal that atomizer of the present invention produces is stable, sensitivity is obviously improved, and the sensitivity of more conventional atomizer can improve
About 81%.
The autonomous heated type atomizer of the present invention is not limited to the various embodiments described above, and all employing equivalent modes obtain
Technical scheme all fall within the scope of protection of present invention.
Claims (8)
1. an autonomous heated type atomizer, including atomic generator and heating wire, atomic generator open topped is provided with a little
Fire coil, atomic generator is provided with inner tube, outer tube and the first side ports drawn by inner and outer tubes and the second side ports,
It is characterized in that: described heating wire winding is in atomic generator external wall of upper portion, and atomic generator is wound around the part of heating wire and sets
There is insulating bushing；Being covered with upper end clamping sleeve outside atomic generator, bottom is provided with support seat, and upper end clamping sleeve assembles with supporting seat
It is integrated, atomic generator and insulating bushing are clamped in it, support seat bottom portion and be additionally provided with the company being connected with apparatus for adjusting position
Connecing post, the first side ports of atomic generator and the second side ports are drawn from the sidewall of upper end clamping sleeve respectively.
The most autonomous heated type atomizer, it is characterised in that: in the middle part of the outer wall of described atomic generator
Being provided with a circle positioning boss, insulating bushing lower end is supported location by this positioning boss, and insulating bushing top is determined by upper end clamping sleeve
Position compresses.
The most autonomous heated type atomizer, it is characterised in that: with support bottom described atomic generator
Cushion pad it is additionally provided with between Zuo.
4. according to the arbitrary described autonomous heated type atomizer of claim 1-3, it is characterised in that: described upper end clamping sleeve, absolutely
Edge lining, support seat and cushion pad all use rotary structure, and are co-axially mounted.
The most autonomous heated type atomizer, it is characterised in that: described upper end clamping sleeve outer wall is provided with
Heating wire PCB substrate, described heating wire PCB substrate electrically connects with heating wire.
The most autonomous heated type atomizer, it is characterised in that: described atomic generator and heating wire
PCB substrate is integrated formed structure.
The most autonomous heated type atomizer, it is characterised in that: described atomic generator is wound around heating wire
Outer wall be provided with some positioning convex；Or employing helicitic texture.
The most autonomous heated type atomizer, it is characterised in that: described insulating bushing, cushion pad and company
Connecing post all uses adiabatic exotic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704499.3A CN106053422A (en) | 2016-08-23 | 2016-08-23 | Autonomous heating type atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704499.3A CN106053422A (en) | 2016-08-23 | 2016-08-23 | Autonomous heating type atomizer |
Publications (1)
| Publication Number | Publication Date |
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| CN106053422A true CN106053422A (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610704499.3A Pending CN106053422A (en) | 2016-08-23 | 2016-08-23 | Autonomous heating type atomizer |
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| CN (1) | CN106053422A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389630A (en) * | 2017-06-23 | 2017-11-24 | 北京海光仪器有限公司 | The adjustable pulse firing formula atomizer of temperature and its heating means |
| CN108072644A (en) * | 2017-12-26 | 2018-05-25 | 浙江福立分析仪器股份有限公司 | A kind of device and method for automatically adjusting atomic fluorescence spectrometer atomizer height |
| WO2020088444A1 (en) * | 2018-10-29 | 2020-05-07 | 伯侨（重庆）重金属科学技术研究院有限公司 | Atomizer for analytical instrument |
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| CN201110832Y (en) * | 2007-11-19 | 2008-09-03 | 北京普析科学仪器有限责任公司 | Temperature controllable quartz heating furnace body with prewarming |
| CN103018227A (en) * | 2012-12-27 | 2013-04-03 | 江苏德林环保技术有限公司 | On-line in-water heavy metal monitor based on atomic fluorescence spectroscopy |
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| CN103776816A (en) * | 2012-10-17 | 2014-05-07 | 北京瑞利分析仪器有限公司 | Mini-sized quartz furnace atomizing device |
| CN205910125U (en) * | 2016-08-23 | 2017-01-25 | 江苏德林环保技术有限公司 | From basis heating formula atomizer |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110832Y (en) * | 2007-11-19 | 2008-09-03 | 北京普析科学仪器有限责任公司 | Temperature controllable quartz heating furnace body with prewarming |
| CN103776816A (en) * | 2012-10-17 | 2014-05-07 | 北京瑞利分析仪器有限公司 | Mini-sized quartz furnace atomizing device |
| CN103018227A (en) * | 2012-12-27 | 2013-04-03 | 江苏德林环保技术有限公司 | On-line in-water heavy metal monitor based on atomic fluorescence spectroscopy |
| CN103353411A (en) * | 2013-06-27 | 2013-10-16 | 西北核技术研究所 | Quasi monodisperse nanometer aerosol generation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389630A (en) * | 2017-06-23 | 2017-11-24 | 北京海光仪器有限公司 | The adjustable pulse firing formula atomizer of temperature and its heating means |
| CN108072644A (en) * | 2017-12-26 | 2018-05-25 | 浙江福立分析仪器股份有限公司 | A kind of device and method for automatically adjusting atomic fluorescence spectrometer atomizer height |
| WO2020088444A1 (en) * | 2018-10-29 | 2020-05-07 | 伯侨（重庆）重金属科学技术研究院有限公司 | Atomizer for analytical instrument |
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