CN105047518B - One kind is applied to mass spectrometric mass spectrometer interface device - Google Patents
One kind is applied to mass spectrometric mass spectrometer interface device Download PDFInfo
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- CN105047518B CN105047518B CN201510605488.5A CN201510605488A CN105047518B CN 105047518 B CN105047518 B CN 105047518B CN 201510605488 A CN201510605488 A CN 201510605488A CN 105047518 B CN105047518 B CN 105047518B
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- adjusting rod
- plate
- plugging plate
- interface device
- spring
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- 238000003825 pressing Methods 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001819 mass spectrum Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 238000004949 mass spectrometry Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention discloses one kind is applied to dividing plate is arranged in mass spectrometric mass spectrometer interface device, including the pipeline of both ends open, the pipeline, the dividing plate center is provided with the closure mouth of insertion；Pressing plate centre is provided with pilot hole；Limit assembly is fixed on the pressing plate, for the position of secured adjusted bar；Adjusting rod one end passes through pilot hole, and is provided with through hole in end；The screw rod with plugging plate, spring is installed through through hole, plugging plate is connected with adjusting rod by spring；The adjusting rod other end is fixed by limit assembly.Mass spectrometer interface device disclosed by the invention realizes ionogenic dismounting in the case of vacuum state destructiveness in reduction mass spectrum as far as possible.And, after ion source is changed, it is only necessary to extract the vacuum of ion source region, the Domain Volume is less, the time of evacuation substantially shortens, and improves production efficiency.
Description
Technical field
The present invention relates to mass spectrometry art, and in particular to one kind is applied to mass spectrometric mass spectrometer interface device.
Background technology
During continuous operation, ion source is easily damaged on-line mass spectroscopy instrument, needs to change, dismounts ion source, so as to
Ion source is repaired or replaced.In the past when ion source is changed, it is necessary to have a power failure；Destroy in mass spectrum during changeing
The vacuum state in portion, makes the pressure inside mass spectrum return to normal pressure；After ion source is reinstalled and is finished, then again to mass spectrograph
Evacuation, vacuum are often time-consuming longer, have had a strong impact on the use aborning of on-line mass spectroscopy instrument.
The content of the invention
To solve the above problems, the invention provides one kind is applied to mass spectrometric mass spectrometer interface device, in order to
Reduce be damaged degree of the vacuum state in ionogenic dismounting in mass spectrum.
The invention discloses one kind is applied to mass spectrometric mass spectrometer interface device, including the pipeline of both ends open, the pipe
Dividing plate is set in road, and the dividing plate center is provided with the closure mouth of insertion；Also include pressing plate, adjusting rod, screw rod, spacing group
Part, plugging plate and spring；
The pressing plate centre is provided with pilot hole, and pressing plate is provided with fixture, mass spectrometric for pressing plate is fixed on
On pipeline；The limit assembly is fixed on the pressing plate, for the position of secured adjusted bar；
Described adjusting rod one end passes through pilot hole, and is provided with through hole in end；Install with plugging plate, spring through through hole
Screw rod；The plugging plate is connected with adjusting rod by spring；
The adjusting rod other end is fixed by limit assembly.
The limit assembly includes stop screw and adjusts limited block, and the regulation limited block is fixed on the outer of pilot hole
Side, stop screw are engaged through spacing regulating block with the spacing hole opened up on adjusting rod.
Described screw rod one end is provided with plugging plate；Screw rod is assembled by the through hole that the other end is opened up through on adjusting rod by nut
On adjusting rod；
Spring is cased with screw rod between plugging plate and adjusting rod, the two ends of spring are fixed with plugging plate, adjusting rod respectively
Connection.
The plugging plate is provided with the truncated cone-shaped structure being brought into close contact with closure mouth.
The pressing plate includes top board and lower platen；The top board and lower platen stacked on top, are bolted on
On mass spectrograph outer wall.
At least 2 sealing rings are provided between the top board and lower platen, wherein 1 sealing ring is close to adjusting rod setting.
Compared with prior art, beneficial effects of the present invention are：
One kind that the present invention is provided is applied to mass spectrometric mass spectrometer interface device, and plugging plate is moved on to work by adjusting rod
Position, the closure mouth blocked at mass spectrum channel partition；With ionogenic process is removed, plugging plate both sides pressure reduction increases, spring
Be stretched, plugging plate tightly be attached to closure mouth on, be substantially unaffected mass spectrum inner vacuum；It is reinstalled ion source procedure
In, extract the air in ion source region out, promote plugging plate pressure at both sides to taper into, at plugging plate and mass spectrum channel partition
Laminating degree between closure mouth is gradually reduced, spring retraction, drives plugging plate to return to initial position.Treat that both sides vacuum is held substantially
After flat, finally realize that plugging plate is departed from closure mouth；Rotate adjusting rod and plugging plate is moved on to into off-position；It is disclosed by the invention
Mass spectrometer interface device realizes ionogenic dismounting in the case of vacuum state destructiveness in reduction mass spectrum as far as possible.And,
After ion source is changed, it is only necessary to extract the vacuum of ion source region, the Domain Volume is less, the time of evacuation substantially contracts
It is short, improve production efficiency；
The truncated cone-shaped structure being brought into close contact with closure mouth is provided with by plugging plate, above-mentioned fit structure is being made by external force
Ensure that plugging plate is difficult to slide with；
By arranging sealing ring, being brought into close contact for adjusting rod and pilot hole is realized；Improve sealing.
Description of the drawings
Fig. 1 is the structure chart that mass spectrometric mass spectrometer interface device is applied to disclosed in an embodiment of the present invention.
In figure：1：Top board；2：Lower platen；3：Sealing ring；4：Adjusting rod；5：Screw rod；6：Spacing regulating block；7：Spacing spiral shell
Nail；8：Plugging plate；9：Spring.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment obtained on the premise of creative work is not made by member, belongs to the scope of protection of the invention.
Below in conjunction with the accompanying drawings the present invention is described in further detail：
As shown in figure 1, the invention discloses one kind is applied to mass spectrometric mass spectrometer interface device, including the pipe of both ends open
Dividing plate is set in road, the pipeline, and the dividing plate center is provided with the closure mouth of insertion；Also include pressing plate, adjusting rod 4, spiral shell
Bar 5, limit assembly, plugging plate 8 and spring 9；
Pressing plate centre is provided with pilot hole；4 one end of adjusting rod passes through pilot hole, and is provided with through hole in end；Through logical
Install with plugging plate 8, the screw rod 5 of spring 9 in hole；Plugging plate 8 is connected with adjusting rod 4 by spring 9；The adjusting rod 4 is another
End is fixed by limit assembly.
Pressing plate includes that center opens up the top board 1 and lower platen 2 of pilot hole, 2 consistency from top to bottom heap of top board 1 and lower platen
The folded, pilot hole of top board 1 is corresponding with the pilot hole of lower platen 2, is bolted on mass spectrometric pipeline；Adjusting rod
Through pilot hole, at least 2 sealing rings between top board 1 and lower platen 2, are provided with, wherein 1 sealing ring is close to pilot hole outer rim
Arrange；For sealing the space between pilot hole and adjusting rod 4, the sealing of mass spectrometer interface device is improved；
4 one end of adjusting rod passes through pilot hole, and is provided with through hole in the end, and the screw rod 5 perpendicular to adjusting rod 4 is from the through hole
Pass through；Plugging plate 8 is fixed in 5 one end of screw rod, is provided with the truncated cone-shaped structure being brought into close contact with closure mouth, it is ensured that envelope on the outside of plugging plate
Closure plate 8 is difficult to slide in the case of by external force.Screw rod 5 is assembled by nut by 5 other end of screw rod through the through hole of adjusting rod 4
On adjusting rod 4；Be cased with spring 9 on screw rod 5 between plugging plate 8 and adjusting rod 4, the two ends of spring 9 respectively with plugging plate 8,
Adjusting rod 4 is fixedly connected.Ensure that after ion source is reinstalled by arranging spring 9, in the presence of spring 9, plugging plate 8
Initial position can be automatically returned to, realizes that the truncated cone-shaped structure on plugging plate 8 is departed from closure mouth；Facilitate adjusting rod by plugging plate
Move on to off-position.
4 other end of adjusting rod is engaged with the limit assembly being fixed on pressing plate；Limit assembly includes stop screw 7 and adjusts
Section limited block 6, adjusts the outside that limited block 6 is fixed on pilot hole, and stop screw 7 is passed through to be opened on spacing regulating block 6 and adjusting rod 4
If spacing hole be engaged；For adjusting rod 4 is fixed on the position specified.
Assembling process is as follows：
Pipeline dividing plate is set in pipeline, the closure mouth of insertion is opened up on pipeline dividing plate；
Open up on pipeline for the through hole and the installing hole for installation bolt through adjusting rod；
Pilot hole is opened up in top board 1 and 2 centre of lower platen；
Multi-layer sealed circle 3 is set around pilot hole on lower platen 2, the alignment of top board 1 is stacked on lower platen 2, and
Top board 1 and lower platen 2 are together fixed on pipeline by bolt；
Arrange on top board 1 and adjust limited block 6 and stop screw 7, stop screw 7 is through spacing regulating block 6 and adjusting rod 4
On the spacing hole that opens up be engaged, the position for adjusting limited block 6 and stop screw 7 is installed according to needs of production；
T-shaped adjusting rod 4 is stretched to inside pipeline through pilot hole, by plugging plate 8 be fixed on screw rod 5 one end, will be spring 9 solid
Surely it is arranged on side of the plugging plate 8 away from closure mouth；Screw rod 6 with plugging plate 8 and spring 9 passes perpendicularly through T-shaped adjusting rod 4
The assembling of screw rod 5 is realized in end, nut of screwing on；
9 other end of spring is fixed on adjusting rod 4, it is ensured that spring is in former long status；
Complete the assembling of mass spectrometer interface device.
Operation principle is as follows：
When mass spectrograph needs to change ion source, plugging plate is moved to from off-position by working position by adjusting rod
Put, and pass through stop screw secured adjusted bar；During dismounting is ionogenic, the pressure inside ion source can be raised, by vacuum
State is changed into atmospheric pressure state, and the pressure reduction so before and after plugging plate can increase, and spring is stretched；When ion source is removed completely,
It is normal pressure on the outside of plugging plate, is fine vacuum on the inside of plugging plate, negative pressure state, using this pressure reduction by the round platform on plugging plate
Formula close structure is fitted at closure mouth, and the vacuum state in mass spectrum is remained unchanged substantially；Complete when ionogenic work is changed
Afterwards, ion source has been reinstalled, using the air pump of ionization chamber, when making ionization chamber reach specified vacuum, plugging plate both sides
Pressure diminish, spring contraction, plugging plate be subject to the inside air pressure of ion source region thrust, also by spring reset produce to
External broach, when thrust is less than pulling force, under the action of the spring, plugging plate can automatically return to initial position, on plugging plate
Truncated cone-shaped structure is departed from closure mouth；At this moment plugging plate is moved to the position of inoperative again with adjusting rod.
One kind that the present invention is provided is applied to mass spectrometric mass spectrometer interface device, and plugging plate is moved on to work by adjusting rod
Position, the closure mouth blocked at mass spectrum channel partition；With ionogenic process is removed, plugging plate both sides pressure reduction increases, spring
Be stretched, plugging plate tightly be attached to closure mouth on, be substantially unaffected mass spectrum inner vacuum；It is reinstalled ion source procedure
In, extract the air in ion source region out, promote plugging plate pressure at both sides to taper into, at plugging plate and mass spectrum channel partition
Laminating degree between closure mouth is gradually reduced, spring retraction, drives plugging plate to return to initial position.Treat that both sides vacuum is held substantially
After flat, finally realize that plugging plate is departed from closure mouth；Rotate adjusting rod and plugging plate is moved on to into off-position；It is disclosed by the invention
Mass spectrometer interface device realizes ionogenic dismounting in the case of vacuum state destructiveness in reduction mass spectrum as far as possible.And,
After ion source is changed, it is only necessary to extract the vacuum of ion source region, the Domain Volume is less, the time of evacuation substantially contracts
It is short, improve production efficiency；The truncated cone-shaped structure being brought into close contact with closure mouth is provided with by plugging plate, above-mentioned fit structure exists
By ensure in the presence of external force plugging plate be difficult slide；By arranging sealing ring, being brought into close contact for adjusting rod and pilot hole is realized；
Improve sealing.
The preferred embodiments of the present invention are these are only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. one kind is applied to mass spectrometric mass spectrometer interface device, it is characterised in that including the pipeline of both ends open, in the pipeline
Dividing plate is set, and the dividing plate center is provided with the closure mouth of insertion；Also include pressing plate, adjusting rod, screw rod, limit assembly, envelope
Closure plate and spring；
The pressing plate centre is provided with pilot hole, and pressing plate is provided with fixture, for pressing plate is fixed on pipeline；The limit
Hyte part is fixed on the pressing plate, for the position of secured adjusted bar；
Described adjusting rod one end passes through pilot hole, and is provided with through hole in end；Spiral shell with plugging plate, spring is installed through through hole
Bar；The plugging plate is connected with adjusting rod by spring；The corresponding closure mouth of the plugging plate is arranged, and is removing ion source
During due to plugging plate both sides pressure reduction by the plugging plate be attached to it is described closure mouth at；
The adjusting rod other end is fixed by limit assembly.
2. mass spectrometric mass spectrometer interface device is applied to as claimed in claim 1, it is characterised in that the limit assembly includes
Stop screw and regulation limited block, the regulation limited block are fixed on the outside of pilot hole, and stop screw passes through spacing regulating block
It is engaged with the spacing hole opened up on adjusting rod.
3. mass spectrometric mass spectrometer interface device is applied to as claimed in claim 1, it is characterised in that described screw rod one end is provided with
Plugging plate；The through hole that the other end is opened up through on adjusting rod is assembled screw rod on adjusting rod by nut；
Spring is cased with screw rod between plugging plate and adjusting rod, the two ends of spring are fixedly connected with plugging plate, adjusting rod respectively.
4. mass spectrometric mass spectrometer interface device is applied to as claimed in claim 1, it is characterised in that the plugging plate is provided with
The truncated cone-shaped structure being brought into close contact with closure mouth.
5. mass spectrometric mass spectrometer interface device is applied to as claimed in claim 1, it is characterised in that the pressing plate includes pressure
Plate and lower platen；The top board and lower platen stacked on top, are bolted on mass spectrograph outer wall.
6. be applied to mass spectrometric mass spectrometer interface device as claimed in claim 5, it is characterised in that the top board with push
At least 2 sealing rings are provided between plate, wherein 1 sealing ring is close to adjusting rod setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605488.5A CN105047518B (en) | 2015-09-21 | 2015-09-21 | One kind is applied to mass spectrometric mass spectrometer interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605488.5A CN105047518B (en) | 2015-09-21 | 2015-09-21 | One kind is applied to mass spectrometric mass spectrometer interface device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105047518A CN105047518A (en) | 2015-11-11 |
| CN105047518B true CN105047518B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510605488.5A Active CN105047518B (en) | 2015-09-21 | 2015-09-21 | One kind is applied to mass spectrometric mass spectrometer interface device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105873351B (en) * | 2016-06-14 | 2018-07-06 | 中国工程物理研究院流体物理研究所 | A kind of device and adjusting method that ion source position is adjusted under high vacuum state |
| CN107452593A (en) * | 2017-09-19 | 2017-12-08 | 珠海美华医疗科技有限公司 | A kind of mass spectrometric disengaging sampling device and mass spectrograph |
| CN111276386B (en) * | 2020-02-08 | 2021-04-30 | 复旦大学 | Adjustable slit device for debugging time-of-flight mass analyzer |
| CN112908832A (en) * | 2021-04-13 | 2021-06-04 | 杭州安誉科技有限公司 | Mass spectrum interface device applied to mass spectrometer |
| CN114999889B (en) * | 2022-07-06 | 2024-11-15 | 中国科学院赣江创新研究院 | An interface device for plasma mass spectrometry |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479661A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Composite ionization source for vacuum ultraviolet photoionization and chemical ionization for mass spectrometry |
| CN202886339U (en) * | 2009-03-06 | 2013-04-17 | 萨莫芬尼根有限责任公司 | System from GC (gas chromatograph) to mass spectrometer interface |
| US8748811B2 (en) * | 2009-02-05 | 2014-06-10 | Shimadzu Corporation | MS/MS mass spectrometer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140138531A1 (en) * | 2012-11-20 | 2014-05-22 | David A. Wright | Use of Neutral Loss Mass to Reconstruct MS-2 Spectra in All Ions Fragmentation |
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2015
- 2015-09-21 CN CN201510605488.5A patent/CN105047518B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8748811B2 (en) * | 2009-02-05 | 2014-06-10 | Shimadzu Corporation | MS/MS mass spectrometer |
| CN202886339U (en) * | 2009-03-06 | 2013-04-17 | 萨莫芬尼根有限责任公司 | System from GC (gas chromatograph) to mass spectrometer interface |
| CN102479661A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Composite ionization source for vacuum ultraviolet photoionization and chemical ionization for mass spectrometry |
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| CN105047518A (en) | 2015-11-11 |
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