CN205992522U - Stable isotope mass spectrum double path system fine vacuum sampling device - Google Patents
Stable isotope mass spectrum double path system fine vacuum sampling device Download PDFInfo
- Publication number
- CN205992522U CN205992522U CN201620802019.2U CN201620802019U CN205992522U CN 205992522 U CN205992522 U CN 205992522U CN 201620802019 U CN201620802019 U CN 201620802019U CN 205992522 U CN205992522 U CN 205992522U
- Authority
- CN
- China
- Prior art keywords
- glass tubing
- cock
- polytetrafluoro
- mass spectrum
- stable isotope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Stable isotope mass spectrum double path system fine vacuum sampling device, is related to analysis and testing technology field.It is provided with glass tubing, arm and lower branch line are provided with glass tubing, upper arm is connected with glass tubing respectively with lower branch line, the upper port of glass tubing is provided with female thread, the lower port of glass tubing is provided with female thread, and the upper port of glass tubing is provided with polytetrafluoro cock, and the lower port of glass tubing is provided with lower polytetrafluoro cock, it is provided with least 1 sealing ring between upper polytetrafluoro cock and glass tubing, between lower polytetrafluoro cock and glass tubing, be provided with least 1 sealing ring.Using O-ring seal, the air tight condition required for stable isotope mass spectrum two-way sample introduction can be met, can greatly reduce the pollution to sample for the air.Using can simplicity be easy to get corrosion resistant polytetrafluoro cock, reduce production cost.Can be used for malleation, vacuum is high, leak rate is little, and profile is beautiful, high-low temperature resistant changes, nontoxic, the features such as corrosion-resistant.
Description
Technical field
This utility model is related to analysis and testing technology field, especially relates to stable isotope mass spectrum double path system fine vacuum
Sampling device.
Background technology
The switch of the valve that stable isotope mass spectrum two-way sampling system is controlled by system is quickly in sample gas and reference
Switch between gas, to reach the most accurate, the most sensitive sample measurement in mass spectral analyses.Reference gas and sample gas through one are
The cylinder of row valve and variable volume is adjusted to identical air pressure, to keep identical pressure value, and then ensures reference gas
Identical with the sample introduction flow velocity of sample gas, reduce the measurement error of the unstable generation of air-flow.Because reference gas and sample gas interruption
Enter ion source it is ensured that the measurement of sample gas is all to obtain data under stable, accurate correcting condition.Meanwhile, enter
Before sample pipe is opened, pipeline is evacuated through molecular pump, greatly reduces the interference of foreign gas, also reduces background valuess, improves
The detection limit of instrument.
Content of the invention
The purpose of this utility model is to provide the stable isotope mass spectrum double path system of a kind of simply easy system and easy care
Fine vacuum sampling device.
This utility model is provided with glass tubing, is provided with arm and lower branch line, upper arm and lower branch line are respectively on glass tubing
Connect with glass tubing, the upper port of glass tubing is provided with female thread, and the lower port of glass tubing is provided with female thread, the upper port of glass tubing
It is provided with polytetrafluoro cock, the lower port of glass tubing is provided with lower polytetrafluoro cock, between upper polytetrafluoro cock and glass tubing
It is provided with least 1 sealing ring, between lower polytetrafluoro cock and glass tubing, be provided with least 1 sealing ring.
3 sealing rings can be provided between upper polytetrafluoro cock and glass tubing, can set between lower polytetrafluoro cock and glass tubing
There are 3 sealing rings, described sealing ring can adopt O-ring seal.
Glass tubing upper and lower port is provided with female thread and is available for upper and lower polytetrafluoro cock movement.Using with the O-shaped sealing of at least one
The cock of polytetrafluoro up and down the moving up and down along the screw thread of glass pipe shaft termination of circle, makes the sample room of centre prop up up and down with corresponding
Pipe is connected or closes, and when upper and lower polytetrafluoro cock is in location A, can introduce sample gas, subsequently be screwed down poly- four
Fluorine cock is to B location, airtight, and elevation by-pass is connected with stable isotope mass spectrum double path system, after completing pipeline vacuum,
Revolve polytetrafluoro cock upwards, be allowed to recover position A, now sample gas enter stable isotope mass spectrum double path system, start to analyze
Test.
Compared with prior art, this utility model have the characteristics that as follows：
(1) adopt O-ring seal, the air tight condition required for stable isotope mass spectrum two-way sample introduction can be met, permissible
Greatly reduce the pollution to sample for the air.
(2) using can simplicity be easy to get corrosion resistant polytetrafluoro cock, reduce production cost.
(3) the individually separable characteristic of each several part makes novel stabilising isotope mass spectrometry two-way sample feeding pipe achieve easy reparation
Feature, and the overall ruggedness of sample feeding pipe can be lifted.
(4) can realize controlling gaseous sample high by changing not isometric glass pipe shaft and corresponding polytetrafluoro cock
Fidelity sample introduction, and it is easily changed the airtight O-ring of inefficacy, can be used for malleation, vacuum is high, leak rate is little, and profile is beautiful, resistance to height
Low temperature changes, nontoxic, the features such as corrosion-resistant.
Brief description
Fig. 1 is the assembling schematic diagram of this utility model embodiment.
Fig. 2 is that the cock of polytetrafluoro up and down of this utility model embodiment is in and opens, and state during sample gas that imports is shown
It is intended to.
Fig. 3 is that the cock of polytetrafluoro up and down of this utility model embodiment is in and screws, and state during airtight sample gas is shown
It is intended to.
Specific embodiment
Below by way of specific embodiment, the utility model will be further described.
Referring to Fig. 1～3, this utility model embodiment is provided with glass tubing 1, is provided with arm 11 and lower on glass tubing 1
Pipe 12, upper arm 11 is connected with glass tubing 1 respectively with lower branch line 12, and the upper port 13 of glass tubing 1 is provided with female thread, glass tubing 1
Lower port 14 be provided with female thread, the upper port 13 of glass tubing 1 is provided with polytetrafluoro cock 21, the lower port 14 of glass tubing 1
It is provided with lower polytetrafluoro cock 22, between upper polytetrafluoro cock 21 and glass tubing 1, be provided with 3 O-ring seals 31, lower polytetrafluoro rotation
It is provided with 3 O-ring seals 32 between plug 22 and glass tubing 1.
Glass tubing 1 upper and lower port is provided with female thread and is available for upper and lower polytetrafluoro cock movement.Using respectively with 3 O-shaped sealings
The cock of polytetrafluoro up and down the moving up and down along the screw thread of glass pipe shaft termination of circle, makes the sample room of centre prop up up and down with corresponding
Pipe is connected or closes, when upper and lower polytetrafluoro cock is in an open position, can introduce sample gas P be subsequently screwed down poly-
Tetrafluoro cock is to closed position, and elevation by-pass is connected with stable isotope mass spectrum double path system, after completing pipeline vacuum,
Revolve polytetrafluoro cock upwards, be allowed to recover open position, now sample gas enter stable isotope mass spectrum double path system, complete point
Analysis test.
Achieve the modularity of stable isotope mass spectrum two-way gas fidelity sampling system using polytetrafluoro cock, new enter
The replaceability of sample pipe each several part improves the convenience of the assembling of sample feeding pipe, reduces maintenance maintenance difficulty it is achieved that economy
The reliable job requirement of Practical Stability.
Claims (3)
1. stable isotope mass spectrum double path system fine vacuum sampling device, it is characterised in that being provided with glass tubing, sets on glass tubing
There are upper arm and lower branch line, upper arm is connected with glass tubing respectively with lower branch line, the upper port of glass tubing is provided with female thread, glass
The lower port of pipe is provided with female thread, and the upper port of glass tubing is provided with polytetrafluoro cock, and the lower port of glass tubing is provided with down
Polytetrafluoro cock, is provided with least 1 sealing ring, between lower polytetrafluoro cock and glass tubing between upper polytetrafluoro cock and glass tubing
It is provided with least 1 sealing ring.
2. stable isotope mass spectrum double path system fine vacuum sampling device as claimed in claim 1 is it is characterised in that upper polytetrafluoro
It is provided with 3 sealing rings between cock and glass tubing, between lower polytetrafluoro cock and glass tubing, be provided with 3 sealing rings.
3. stable isotope mass spectrum double path system fine vacuum sampling device as claimed in claim 1 is it is characterised in that described sealing
Circle adopts O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620802019.2U CN205992522U (en) | 2016-07-28 | 2016-07-28 | Stable isotope mass spectrum double path system fine vacuum sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620802019.2U CN205992522U (en) | 2016-07-28 | 2016-07-28 | Stable isotope mass spectrum double path system fine vacuum sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205992522U true CN205992522U (en) | 2017-03-01 |
Family
ID=58102857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620802019.2U Expired - Fee Related CN205992522U (en) | 2016-07-28 | 2016-07-28 | Stable isotope mass spectrum double path system fine vacuum sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205992522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369606A (en) * | 2017-06-28 | 2017-11-21 | 中国地质科学院水文地质环境地质研究所 | A kind of two-way sample introduction chlorine bromine isotope mass spectrometry system and its analysis method |
-
2016
- 2016-07-28 CN CN201620802019.2U patent/CN205992522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369606A (en) * | 2017-06-28 | 2017-11-21 | 中国地质科学院水文地质环境地质研究所 | A kind of two-way sample introduction chlorine bromine isotope mass spectrometry system and its analysis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 Termination date: 20170728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |