CN207623238U - Atomic absorption spectrometer - Google Patents
Atomic absorption spectrometer Download PDFInfo
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- CN207623238U CN207623238U CN201721827064.4U CN201721827064U CN207623238U CN 207623238 U CN207623238 U CN 207623238U CN 201721827064 U CN201721827064 U CN 201721827064U CN 207623238 U CN207623238 U CN 207623238U
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- combustion chamber
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- hollow cathode
- cylinder
- detector
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Abstract
The utility model is related to a kind of Atomic Absorption Spectrometers,Including combustion chamber,Hollow cathode lamp positioned at combustor side and the detector for receiving the light that hollow cathode lamp is sent out positioned at the combustion chamber other side,The burner includes combustion head,Burning seam is provided on the combustion head,Sliding is provided with supporting rack in the combustion chamber,The burner is arranged on support frame as described above,The central axis of the burning seam is vertical with the line direction between hollow cathode lamp and detector,The driving mechanism that the line direction for driving supporting rack between vertical hollow cathode lamp and detector is moved is provided in the combustion chamber,When there is stopping state in burning seam,Combustion head can be moved,So that the burning seam that do not block is below the line between hollow cathode lamp and detector,It stitches and sample can fully be excited due to not blocking the burning of section at this time,Therefore testing result is less prone to inaccurate situation,It is smaller to examine time determination error.
Description
Technical field
The utility model is related to microelement analyzer, more particularly to a kind of Atomic Absorption Spectrometer.
Background technology
Atomic absorption spectrophotometry is the specific and exclusive wavelength with element to be measured, measures atom caused by sample
Absorption of the steam to radiation, to measure a kind of method of concentration of element in sample.It is based in atomizer, with flame or
Element to be measured is generated atomic vapour by no flame method under high temperature action, and radiation of light source goes out the characteristic light of element to be measured, the spy
Sign light is absorbed by the ground state atom of element to be measured when passing through atomizer, and transmitted light enters receiver, carry out opto-electronic conversion and
Record measures the content of the element by the decrease of radiation luminous intensity.
Existing Atomic Absorption Spectrometer includes combustion chamber, is provided with burner in a combustion chamber, and burner includes burning
Head, is provided with burning seam on combustion head, and burning gases will burn after being mixed with sample in burning seam.
But combustion head sews a blocking part using that can there is a situation where to burn for a long time, flame will be caused to fire in this way
It burns uneven, causes sample excitation uneven, keep testing result error larger.
Utility model content
The purpose of this utility model is to provide a kind of Atomic Absorption Spectrometer, have the advantages that testing result error is small.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of atomic absorption spectrum
Instrument, including combustion chamber, positioned at the hollow cathode lamp of combustor side and positioned at the combustion chamber other side for receiving hollow cathode
The detector for the light that lamp is sent out is provided in the combustion chamber between hollow cathode lamp and detector for by sample to be tested
The burner of evaporation, the burner include combustion head, and burning seam is provided on the combustion head, slides and sets in the combustion chamber
It is equipped with supporting rack, the burner is arranged on support frame as described above, the central axis of the burning seam and hollow cathode lamp and inspection
The line direction surveyed between device is vertical, is provided in the combustion chamber for driving supporting rack along vertical hollow cathode lamp and detection
The driving mechanism of line direction movement between device.
Through the above technical solutions, in use, sample can sew abundant evaporation by burning, hollow cathode lamp is sent out at this time
Light by by being received by detector after the steam with metallic element, detector will detect data at this time, when detecting, combustion
It burns seam to be not easy to clear up due to relatively narrow, burning seam is easy to be plugged a part in use, if the part being plugged at this time
When just at below the line between hollow cathode lamp and detector, since sample is not excited completely, it can cause to examine
It is inaccurate to survey device testing result, drives supporting rack movement, supporting rack that burner will be driven to move together by driving mechanism at this time,
So that the burning seam for not blocking section is in below the line between hollow cathode lamp and detector, not due to section burning seam at this time
It is plugged, therefore sample can be excited fully so that burning sews when blocking a part, and testing result is less prone to larger
Error, testing result are accurate.
Preferably, the bottom of combustion chamber is provided with sliding slot, and the sliding block coordinated with sliding slot is provided on support frame as described above.
Through the above technical solutions, place frame moves for convenience, it is provided with sliding slot in a combustion chamber, and on supporting rack
It is provided with sliding block, sliding block is made to be slided in sliding slot when using, by the cooperation of sliding slot and sliding block supporting rack is moved
Shi Pingwen, it is not easy to shake, the situation for making burner impaired when supporting rack being avoided to shake occurs.
Preferably, the sliding block is provided with holding tank towards sliding slot bottom side, is provided in cunning in the holding tank
The wiping block that block will wipe when moving inside sliding slot.
Through the above technical solutions, due to can often evaporate sample in a combustion chamber, the sample of part evaporation can be residual
It stays in sliding slot, is easy in sliding slot, there are more metallic element and dust, to be easy to influence measurement result, lead to after long-term accumulation
The excessively dirty influence detection of sliding slot can be avoided to a certain extent when sliding block is moved by sliding slot inner wall wiped clean by crossing setting wiping block
As a result the case where, occurs.
Preferably, the driving mechanism includes cylinder, and the cylinder is fixed in a combustion chamber and the piston rod of the cylinder
It is connect with supporting rack.
Through the above technical solutions, driving supporting rack movement for convenience, is provided with cylinder, passes through cylinder in a combustion chamber
It is simple and convenient when supporting rack being driven to move, and cylinder is easily controllable, long working life.
Preferably, it is provided with the heat shield for covering cylinder in the combustion chamber, confession is provided on the heat shield
The drive hole that the piston rod of cylinder stretches out.
Through the above technical solutions, due in combustion chamber temperature it is higher, and cylinder is for a long time in the higher local work of temperature
As when be easy to happen damage, therefore in order to avoid cylinder because high temperature damages to a certain extent, be provided in a combustion chamber heat-insulated
Cover, is covered cylinder by heat shield so that the high temperature air in combustion chamber is not easy to be in direct contact with cylinder, effectively reduces gas
Temperature around cylinder may make the piston rod of cylinder is convenient to be connect with supporting rack by drive hole.
Preferably, the heat shield is combined by multilayered structure, and the heat shield is by far from cylinder side to close cylinder
Side includes ceramic layer and asbestos layer successively.
Through the above technical solutions, in order to enable the good heat-insulation effect of heat shield, sets heat shield to ceramic layer and stone
Cotton layer, asbestos layer good heat-insulation effect, and ceramic layer and asbestos layer are nonflammable.
Preferably, the burner further includes mixing chamber, and the combustion head is fixed on mixing chamber and is connected to mixing chamber,
The mixing chamber is fixed on supporting rack, and the combustion tube for being passed through burning gases into mixing chamber is communicated on the mixing chamber
Road and the sample pipe for being passed through sample into mixing chamber.
Through the above technical solutions, in use, burning gases are mixed with sample to be tested in mixing chamber, then pass through combustion
It burns seam to burn, can easily be incorporated sample and burning gases in mixing chamber by combustion pipe and sample pipe.
Preferably, the combustion pipe is each attached to sample pipe on the side wall of combustion chamber.
Through the above technical solutions, when driving burner movement due to supporting rack, combustion pipe will be drawn with sample pipe
It is dynamic, in order to avoid air source detaches combustion pipe, sample pipe is detached with sample with burning, by combustion pipe and sample pipe and combustion
The side wall for burning room is fixed together.
In conclusion the utility model having the beneficial effect that in contrast to the prior art：
（1）Can burner be moved by the way that supporting rack is arranged, the burning blocked seam from hollow cathode lamp and is detected
Line moved out from beneath between device, it is ensured that the sample at line between hollow cathode lamp and detector is fully excited；
（2）Supporting rack sliding can be made more to stablize by the way that sliding slot and sliding block is arranged.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the sectional view of the combustion chamber of embodiment, main prominent supporting rack and heat shield；
Fig. 3 is the explosive view of the heat shield of embodiment, the structure of main prominent burner；
Fig. 4 is the partial sectional view of embodiment, main prominent sliding slot and sliding block；
Fig. 5 is the enlarged view at A in Fig. 4, the structure of main prominent holding tank；
Fig. 6 is the layer structure of heat shield.
Reference numeral：1, combustion chamber；2, hollow cathode lamp；3, detector；4, burner；411, combustion head；5, burning seam；
6, supporting rack；7, cylinder；8, sliding slot；9, sliding block；10, holding tank；11, wiping block；12, heat shield；121, ceramic layer；122, stone
Cotton layer；13, drive hole；14, mixing chamber；15, combustion pipe；16, sample pipe.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
As shown in Figure 1, 2, a kind of Atomic Absorption Spectrometer, including combustion chamber 1, the hollow cathode positioned at 1 side of combustion chamber
Lamp 2 and detector 3 positioned at combustion chamber 1 other side for receiving the light that hollow cathode lamp 2 is sent out are located at sky in combustion chamber 1
The burner 4 for evaporating sample to be tested is provided between heart cathode modulation 2 and detector 3, in use, burner 4 is by sample
Fully excitation, the steam that the light source that hollow cathode lamp 2 is sent out at this time is excited by being burned device 4, these light are by detector 3 later
It receives, detector 3 will obtain result after analysis.
As shown in Figure 2,3, wherein sliding is provided with supporting rack 6 in combustion chamber 1, and burner 4 is arranged on supporting rack 6,
And the line direction being provided in combustion chamber 1 for driving supporting rack 6 between vertical hollow cathode lamp 2 and detector 3 is moved
Dynamic driving mechanism.
As shown in Figure 3,4, burner 4 includes mixing chamber 14 and combustion head 411, and combustion head 411 is fixed on mixing chamber 14
And be connected to mixing chamber 14, mixing chamber 14 is fixed on supporting rack 6, and combustion pipe 15 and sample pipe are communicated on mixing chamber 14
16, combustion pipe 15 is each attached to sample pipe 16 on the side wall of combustion chamber 1, and burning seam 5 is provided on combustion head 411, and
The central axis of burning seam 5 is vertical with the line direction between hollow cathode lamp 2 and detector 3, in use, passing through combustion pipe
15 are passed through combustible gas into mixing chamber 14, sample solution are passed through in mixing chamber 14 by sample pipe 16, later sample
Solution will burn after being mixed with combustible gas in burning seam 5.
5 are stitched when burning and stopping state occurs, and when causing sample that cannot fully excite, supporting rack 6 is driven by driving mechanism,
So that supporting rack 6 drives burner 4 to move, at this point, burning seam 5 will be below the line between hollow cathode lamp 2 and detector 3
It is moved, when the burning seam 5 at unplugged end is moved to below the line between hollow cathode lamp 2 and detector 3, due to this
Section burning seam is 5 unplugged, therefore section burning seam 5 can fully excite sample, and when detection is not easy to be blocked because of certain section of burning seam 5
Cause larger detection error when plug, at the same can frequent movable supporting frame 6, measure multi-group data and selected, so that inspection
Measured data is more acurrate.
As shown in Figure 4,5, it is moved in order to facilitate supporting rack 6,1 bottom of combustion chamber is provided with sliding slot 8, on supporting rack 6
It is provided with the sliding block 9 coordinated with sliding slot 8, meanwhile, in order to wipe 8 bottom of sliding slot when sliding block 9 moves, in sliding block 9 towards cunning
8 bottom side of slot is provided with holding tank 10, is provided in holding tank 10 for will be wiped inside sliding slot 8 when sliding block 9 moves
Wiping block 11 wipes in the present embodiment soon to be soaked with the sponge block of distilled water.
As shown in Figure 2,3, wherein driving mechanism includes cylinder 7, in use, cylinder 7 is fixed in combustion chamber 1 and cylinder 7
Piston rod connect with supporting rack 6, in use, in order to avoid 7 long-time of cylinder higher in temperature to a certain extent
It is easy to happen damage when side's work, heat shield 12 is provided in combustion chamber 1, heat shield 12 can cover cylinder 7, while in order to
Facilitate cylinder 7 that supporting rack 6 is driven to move, the drive hole 13 of the piston rod stretching for cylinder 7 is provided on heat shield 12.
As shown in figure 3, heat shield 12 is combined by multilayered structure, as shown in fig. 6, heat shield 12 is by far from 7 side of cylinder
Include ceramic layer 121 and asbestos layer 122 successively to close 7 side of cylinder.
If in use, finding that the burning seam 5 below the line between hollow cathode lamp 2 and detector 3 is plugged, can lead to
Crossing cylinder 7 drives supporting rack 6 to move so that supporting rack 6 drives combustion head 411 to move, when unplugged burning seam 5 is in hollow
When below line between cathode modulation 2 and detector 3, you can measure, when measurement is not susceptible to be blocked because of part burning seam 5
The situation for firmly making measuring result error larger.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the scope of protection of the utility model is determined by the attached claims.
Claims (8)
1. a kind of Atomic Absorption Spectrometer, including combustion chamber (1), be located at the hollow cathode lamp (2) of combustion chamber (1) side and be located at
Combustion chamber (1) other side for receiving the detector (3) of the light that hollow cathode lamp (2) is sent out, be located in the combustion chamber (1)
The burner (4) for evaporating sample to be tested, the burner (4) are provided between hollow cathode lamp (2) and detector (3)
Including combustion head (411), burning seam (5) is provided on the combustion head (411), it is characterised in that：It is sliding in the combustion chamber (1)
Dynamic to be provided with supporting rack (6), the burner (4) is arranged on support frame as described above (6), the central axis of the burning seam (5)
Line direction between hollow cathode lamp (2) and detector (3) is vertical, is provided in the combustion chamber (1) for driving branch
The driving mechanism of line direction movement of the support (6) between vertical hollow cathode lamp (2) and detector (3).
2. Atomic Absorption Spectrometer according to claim 1, it is characterised in that：Combustion chamber (1) bottom is provided with cunning
Slot (8) is provided with the sliding block (9) with sliding slot (8) cooperation on support frame as described above (6).
3. Atomic Absorption Spectrometer according to claim 2, it is characterised in that：The sliding block (9) is towards sliding slot (8) bottom
Side is provided with holding tank (10), is provided in the holding tank (10) for will be wiped inside sliding slot (8) when sliding block (9) are mobile
Wiping block (11).
4. Atomic Absorption Spectrometer according to claim 1, it is characterised in that：The driving mechanism includes cylinder (7), institute
State that cylinder (7) is fixed in combustion chamber (1) and the piston rod of the cylinder (7) is connect with supporting rack (6).
5. Atomic Absorption Spectrometer according to claim 4, it is characterised in that：It is provided with and is used in the combustion chamber (1)
The heat shield (12) that cylinder (7) is covered is provided with the drive hole of the piston rod stretching for cylinder (7) on the heat shield (12)
(13)。
6. Atomic Absorption Spectrometer according to claim 5, it is characterised in that：The heat shield (12) is answered by multilayered structure
It closes, the heat shield (12) is by including ceramic layer (121) and asbestos successively far from cylinder (7) side to close cylinder (7) side
Layer (122).
7. Atomic Absorption Spectrometer according to claim 1, it is characterised in that：The burner (4) further includes mixing chamber
(14), the combustion head (411) is fixed on mixing chamber (14) and is connected to mixing chamber (14), and the mixing chamber (14) is fixed on
On supporting rack (6), the combustion pipe for being passed through burning gases into mixing chamber (14) is communicated on the mixing chamber (14)
(15) with for being passed through the sample pipe (16) of sample into mixing chamber (14).
8. Atomic Absorption Spectrometer according to claim 7, it is characterised in that：The combustion pipe (15) and sample pipe
(16) it is each attached on the side wall of combustion chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721827064.4U CN207623238U (en) | 2017-12-23 | 2017-12-23 | Atomic absorption spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721827064.4U CN207623238U (en) | 2017-12-23 | 2017-12-23 | Atomic absorption spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623238U true CN207623238U (en) | 2018-07-17 |
Family
ID=62829903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721827064.4U Active CN207623238U (en) | 2017-12-23 | 2017-12-23 | Atomic absorption spectrometer |
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| CN (1) | CN207623238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189003A (en) * | 2021-04-20 | 2021-07-30 | 中国大唐集团科学技术研究院有限公司中南电力试验研究院 | Collimating measurer for light path and combustion head gap of atomic absorption spectrometer |
-
2017
- 2017-12-23 CN CN201721827064.4U patent/CN207623238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189003A (en) * | 2021-04-20 | 2021-07-30 | 中国大唐集团科学技术研究院有限公司中南电力试验研究院 | Collimating measurer for light path and combustion head gap of atomic absorption spectrometer |
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