CN208043756U - A kind of desorption bottle for trimethylamine test - Google Patents
A kind of desorption bottle for trimethylamine test Download PDFInfo
- Publication number
- CN208043756U CN208043756U CN201820539474.7U CN201820539474U CN208043756U CN 208043756 U CN208043756 U CN 208043756U CN 201820539474 U CN201820539474 U CN 201820539474U CN 208043756 U CN208043756 U CN 208043756U
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- bottle
- desorption
- trimethylamine
- funcitonal
- check valve
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Abstract
The utility model is related to a kind of desorption bottles for trimethylamine test, and feature includes bottle, multi-funcitonal bottle top, thief hole, silicon rubber stopple and one-way cock of threaded mouth etc..The utility model is simple in structure, cleaning and it is easy to operate, air-tightness is good and at low cost, the desorption efficiency and desorption stability that trimethylamine can be effectively improved, effectively avoid air guide fluid-directing needle or the cross contaminations of the extraneous factors to front three amine gas in desorption bottle such as vacuum pressure is unstable.
Description
Technical field
The utility model belongs to labware field, is related to a kind of novel trimethylamine desorption bottle, more particularly, to one kind
The desorption efficiency of trimethylamine can be improved to greatest extent and desorb the desorption bottle of stability, can effectively avoid because of air guide and fluid-directing needle or
The cross contaminations of the extraneous factors to front three amine gas in desorption bottle such as vacuum pressure is unstable.
Background technology
In the trimethylamine in analyzing gaseous sample, desorption bottle is used for the desorption of trimethylamine sample and depositing in short-term for stripping gas
Storage, is indispensable experiment container in sample pretreatment process.
The problems such as traditional trimethylamine desorption bottle is vacuumized using air guide syringe needle, and there are poor sealing, pressure transients,
It is difficult to ensure that desorption bottle is closed and the pressure in the bottle is constant；No. 9 nylon fluid-directing needles are inserted into desorption bottle when sample desorbs, and both influence in bottle
Air-tightness and pressure stability also affect residence time of the stripping liquid in desorption tube, to influence desorption efficiency；Work as desorption bottle
When the vacuum degree of standard requirement is inside not achieved, it is unable to ensure desorption liquid energy in desorption tube and is transferred in desorption bottle completely, it can not be true
Protect uniformity of the front three amine gas in desorption bottle.
Therefore, a kind of good airproof performance, operability are strong, can effectively improve sample homogeneity and desorption efficiency, can reduce sample
The novel trimethylamine desorption bottle of product pollution risk helps to solve the above problems, and bottle and multi-funcitonal bottle top pass through thread seal
It is fixed, the use of intermediate cushioning sealing ring and check valve, it is ensured that the Integral sealing of desorption bottle；Check valve both can guarantee solution
Residence time of the imbibition in desorption tube in turn, ensures that the constant and stripping gas closed of vacuum degree in desorption bottle；Use silicon rubber
Glue stopple blocks the thief hole on bottle cap, and syringe is facilitated to puncture the sample in silicon rubber stopple absorption desorption bottle.
Invention content
For the problem that the common desorption bottle seal tested for trimethylamine is bad, desorption efficiency is low, sample is easy to pollute,
Invent a kind of novel trimethylamine desorption bottle for trimethylamine test.Bottle cap is separately designed with bottle, convenient for bottle inside
It is thoroughly cleaned, it may have preferable leakproofness and desorption efficiency.
To realize above-mentioned function, the utility model is related to a kind of desorption bottle for trimethylamine test, it is characterised in that：
It is formed by connecting from top to bottom by (2) two bottle (1) of threaded bottleneck, multi-funcitonal bottle top parts；The bottle of threaded bottleneck
(1) it is sealed and is fixed by screw thread (7) with multi-funcitonal bottle top (2), intermediate cushioning sealing ring (8)；Multi-funcitonal bottle top (2) is by thief hole
(6), silicon rubber stopple (3), one-way cock A (4), one-way cock B (5) and screw thread (7) composition；The bottle (1) of threaded bottleneck
It is made of one or more of glass, polypropylene, polyurethane, polytetrafluoroethylene (PTFE) material with multi-funcitonal bottle top (2), stopple is by silicon
Rubber is made.
Advantageous effect：
The utility model is combined innovation according to laboratory routine testing demand, by desorption bottle, is designed to an operation
Convenient, good leak tightness trimethylamine desorption bottle.Compared to more traditional trimethylamine desorption apparatus, the invention desorption bottle using screw thread and
Sealing ring connection sealing, drain and air guide use check valve, sampling to use silicon rubber with stopple so that the desorption bottle operation side
Just, good airproof performance.The invention desorption bottle may be implemented, to the thorough cleaning inside bottle, to avoid residual contaminants pair in desorption bottle
The pollution of sample；Bottle and multi-funcitonal bottle top are fixed by thread seal, intermediate cushioning sealing ring and use check valve, can be with
Ensure that desorption bottle has preferable leakproofness and desorption efficiency.
Description of the drawings
Fig. 1 trimethylamine desorption bottle structure charts
Wherein：1. the bottle of threaded mouth；2. multi-funcitonal bottle top；3. silicon rubber stopple；4. check valve A；5. check valve B；
6. thief hole；7. screw thread；8 sealing rings.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
Embodiment 1
As shown in Figure 1, this is used for the desorption bottle of trimethylamine test by glass, polypropylene, polyurethane, polytetrafluoroethylene (PTFE)
One or more of materials are made, can organic solvent-resistant；It is made of the bottle (1) and multi-funcitonal bottle top (2) two parts of threaded mouth.
Wherein, multi-funcitonal bottle top (2) is by thief hole (6), silicon rubber stopple (3), check valve A (4), check valve B (5), spiral shell
Line (7) is constituted.
Wherein, when the bottle (1) of threaded mouth and multi-funcitonal bottle top (2) are incorporated in one by screw thread (7) and sealing ring (8)
When rising, a complete desorption bottle is formed.Two parts up and down are connect with sealing ring by screw thread, easy to disassemble can be cleaned,
It can ensure that desorption bottle has good sealing and experiment operability again.
Wherein, before desorbing trimethylamine sample, close check valve A (4) open simultaneously check valve B (5), ensure it is threaded
After the bottle of mouth tightens sealing completely with multi-funcitonal bottle top, silicon rubber stopple (3), which is inserted into thief hole (6), makes a whole set of desorption bottle reach
To complete sealing, check valve B (5) is connect with vacuum pump, extract in bottle air to pressure gauge indicated value close to minus 1.0 ×
10-5Pa closes check valve B (5) after requirement to be achieved, be in vacuum state in desorption bottle at this time.By sampling pipe front end plastic cap
It removes and is connect with check valve A (4), 1ml saturation potassium hydroxide solutions are injected from sampling pipe rear plug and stand 1min, then from sampling
The syringe needle to connect with nitrogen bag is inserted at pipe rear plug, opening check valve A (4) makes nitrogen pass through sampling pipe by whole lye importing bottle
It is interior and make in desorption bottle full of nitrogen to normal pressure.
Wherein, after the desorption of trimethylamine sample, sampling injector is inserted into silicon rubber stopple (3) to the bottle of threaded mouth
(1) in, the analysis of 1~2ml gas sample injecting chromatographs is extracted.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (2)
1. a kind of desorption bottle for trimethylamine test, which is characterized in that by the bottle (1) and multi-funcitonal bottle top of threaded bottleneck
(2) it is sealed and is fixed by screw thread (7), intermediate cushioning sealing ring (8) ensures its leakproofness, and multi-funcitonal bottle top (2) is by thief hole
(6), silicon rubber stopple (3), check valve A (4) and check valve B (5) and screw thread (7) composition.
2. a kind of desorption bottle for trimethylamine test according to claim 1, which is characterized in that the bottle of threaded bottleneck
Body (1) and multi-funcitonal bottle top (2) are made of one or more of glass, polypropylene, polyurethane, polytetrafluoroethylene (PTFE) material, hole
Plug is made of silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539474.7U CN208043756U (en) | 2018-04-11 | 2018-04-11 | A kind of desorption bottle for trimethylamine test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539474.7U CN208043756U (en) | 2018-04-11 | 2018-04-11 | A kind of desorption bottle for trimethylamine test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208043756U true CN208043756U (en) | 2018-11-02 |
Family
ID=63944756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820539474.7U Active CN208043756U (en) | 2018-04-11 | 2018-04-11 | A kind of desorption bottle for trimethylamine test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208043756U (en) |
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2018
- 2018-04-11 CN CN201820539474.7U patent/CN208043756U/en active Active
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