CN105842367A - Nitrogen injection device for transformer oil chromatographic analysis experiment and use method of nitrogen injection device - Google Patents
Nitrogen injection device for transformer oil chromatographic analysis experiment and use method of nitrogen injection device Download PDFInfo
- Publication number
- CN105842367A CN105842367A CN201610427433.4A CN201610427433A CN105842367A CN 105842367 A CN105842367 A CN 105842367A CN 201610427433 A CN201610427433 A CN 201610427433A CN 105842367 A CN105842367 A CN 105842367A
- Authority
- CN
- China
- Prior art keywords
- injection
- nitrogen
- tube
- piston core
- core bar
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a nitrogen injection device for a transformer oil chromatographic analysis experiment and a use method of the nitrogen injection device. The nitrogen injection device is characterized in that an injection tube and a piston core rod are made of a steel material, and a plurality of air inlets are uniformly formed in the circumferential side wall of the injection tube; a plugging cap is arranged at the air inlet and consists of a cap head, a plugging column and a sheath, the inner end surface of the plugging column is an arc surface, and the radian of the arc surface is the same as that of the circumferential side wall of the injection tube; the piston core rod is of a hollow structure, and the front end of the piston core rod is provided with an external thread; a long internal thread is arranged on the circumferential side wall of the injection tube, and the piston core rod is in threaded connection with the injection tube; the inner side of the back end of the injection tube is provided with an annular groove, and a sealing ring fitting to the piston core rod is arranged in the annular groove. By simplifying the gas injection process, precisely regulating the taken amount of nitrogen and the injection volume, the problems that the injection process is complicated, the personal errors are easily generated, and a lot of nitrogen is wasted in the existing nitrogen injection tool are fundamentally solved, the sealing effect is good, and the purity of nitrogen injected into test oil is remarkably improved.
Description
Technical field
The present invention relates to Chromatographic Analysis of Transformer oil experiment aid, particularly a kind of Chromatographic Analysis of Transformer oil experiment nitrogen
Injection device and using method thereof.
Background technology
Chromatographic Analysis of Transformer oil experiment includes the step such as sampling, degassing, gas analysis and data process, and wherein degassing method is
The important operation link of dissolved gas analysis technology, is most easily generated human error, so how people are studying from change always
Depressor oil takes out its dissolved gas as fully as possible.At present, the practice widely followed of degassing be inject in transformer oil a certain amount of
Nitrogen as balance carrier gas, by nitrogen, the dissolved gas in transformer oil is spun off, injection nitrogen process be typically:
Take 100ml glass syringe, clean 1-2 time with nitrogen, according to experiment sample amount, appropriate flat by nitrogen storage gas cylinder takes
Weighing apparatus carrier gas (N2), then take 5ml glass syringe, through N2After flushing, from 100ml syringe, accurately extract 5ml carrier gas (N2),
It is slowly injected in the syringe of formation testing.In the case of oil sample is more, during repeating to take gas, have a small amount of air and enter
In syringe, affect carrier gas (N2) purity, thus affect degasifying effect, this process is not only complicated and easily produces human error,
Also can waste substantial amounts of nitrogen.It addition, glass syringe often produces the phenomenon of bite because of transformer oil corrosion oxidation.
Summary of the invention
The invention aims to provide a kind of simplify gas injection process, accurately regulation nitrogen measure, the transformer oil of volume injected
Chromatography experiment nitrogen injections device and using method thereof, fundamentally solve the injection that existing nitrogen injections instrument exists
Journey is complicated, be easily generated human error, waste the problem of a large amount of nitrogen, good sealing effect, significantly improves the nitrogen being injected in formation testing
Gas purity.
The technical scheme is that
Nitrogen injections device is used in a kind of Chromatographic Analysis of Transformer oil experiment, the syringe needle of including injection-tube, being located at syringe front end, sets
Piston core bar in injection-tube, it is characterised in that: described injection-tube, piston core bar all use steel material to make, described note
Penetrate and on the circumferential side wall of pipe, the most uniformly offer multiple air inlet, at described air inlet, be provided with plugging cap, described envelope
Blocking cap by the cap head being affixed with air inlet outer face, be inserted into the inner closure post of air inlet, be placed on the sheath group outside air inlet
Becoming, the inner face of described closure post is cambered surface and identical with the radian of the circumferential side wall of injection-tube, and described piston core bar is hollow knot
Structure, the front end of described piston core bar is provided with external screw thread, and the circumferential side wall of described injection-tube is provided with elongated internal thread, described piston
Core bar and injection-tube are threaded togather, and the rear inside of described injection-tube is provided with in being provided with annular groove and described annular groove
With the sealing ring of piston core bar laminating, the circumferential side wall of described piston core bar is provided with expression gas injected slurry volume along its length
Graduation mark, the quantity of described graduation mark is two and 180 degree layout of difference, is provided with digital mark and by front by described graduation mark
It is sequentially reduced after to zero, when the front end of piston core bar is resisted against the inner bottom surface of injection-tube, the zero graduation of described graduation mark and note
The rear end face penetrating pipe is concordant, and the position that described graduation mark correspondence air inlet is fully opened is redness.
Above-mentioned Chromatographic Analysis of Transformer oil experiment nitrogen injections device, the cap head of described plugging cap is rubber cap head, described envelope
Stifled post and sheath concentric and both upper ends are molded jointly in rubber cap head.
The using method of a kind of above-mentioned Chromatographic Analysis of Transformer oil experiment nitrogen injections device, it is characterised in that include as follows
Step:
1) inject the nitrogen volume in sample oil, as required, select the air inlet on corresponding injection-tube circumferential side wall and nitrogen
Gas bomb outlet is connected, and remaining air inlet all blocks with plugging cap；
2), piston core bar is screwed to injection-tube rear end, when the air inlet representing selection on the graduation mark observed on piston core bar
Stopping after full opening of red-label, then open the valve of nitrogen storage cylinder outlet, nitrogen is empty in making pipe in entering injection-tube
Gas is discharged by syringe needle；
3), then the graduation mark being exposed to outside injection-tube is observed, while screw piston core bar to be injected to syringe front end in limit
At the corresponding scale of nitrogen volume, now, air inlet is blocked by piston core bar；
4), by the syringe needle of syringe insert in the syringe equipped with sample oil, the most slowly screw piston core bar, by syringe
Nitrogen be injected with sample oil syringe in, complete balance carrier gas injection.
The invention has the beneficial effects as follows:
1, injection-tube and piston core bar all use steel material to make, it is to avoid glass syringe blocks because of transformer oil corrosion oxidation
Puckery phenomenon occurs；
2, this injection device has multiple air inlet, before injection balance carrier gas, selects suitable air inlet, the loss of nitrogen is dropped
For minimum, during use, piston core bar is screwed out and fully opens to this air inlet, after discharging inner air tube, be screwed into piston core
Bar is to wanted nitrogen injection volume, it is ensured that the accuracy of nitrogen injection volume in sample oil, is greatly reduced human error；
3, use between injection-tube and piston core bar threaded, then piston core bar injection-tube inside spin advance, simultaneously by nitrogen
During injecting sample oil, owing to air inlet is in by sealed condition, impact without nitrogen, then in ensure that syringe, gas delays
Slowly it is injected with in the syringe of sample oil, it is ensured that the stability of operation, also allows for staff and grasp, reduce manual operation
The possibility of error；Meanwhile, the threaded form of injection-tube and piston core bar also contributes to the volume that inject gas is fine-tuned；
4, plugging cap and sealing ring ensure that the sealing of this injection device, it is ensured that occur without gas leakage situation, prevent nitrogen from dissipating,
Ensure that the accuracy of nitrogen injection volume, avoid waste simultaneously；
5, the scale on piston core bar facilitates the gas volume and air inlet open and closure shape that staff grasps in syringe
State, it is simple to operated by personnel, also reduces human error；
6, this injection device will take gas and be integrated in one with gas injection function, not only simplify operating procedure, rinse needle tubing, take for twice
Gas injection of gas synthesizes once-through operation, and greatly reduces the dissipation of nitrogen, it is ensured that injects the nitrogen gas purity in oil sample, subtracts
Lack human error；
7, piston core bar is provided with double graduation mark and is separated by 180 degree, can the most accurately read for totally-enclosed steel syringe
Take the nitrogen amount of injection；
8, gas injection nose air intake is tightly blocked by piston core bar, is in closed state not working, it is not necessary to separately set in gas injection process
Locking device, easily operates；
9, nitrogen injections process is reduced to a step by three steps by this injection device, it is possible to shortens the operating time in a large number, decreases
Workload, reduces labour intensity.
10, this device uses 1 year in Chromatographic Analysis of Transformer oil experimentation, repaiies trial work district electrical test four by company
1500 experiments of every class group use, and embody this device easy to use, and simple to operate, practicality is the strongest.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is the structural representation of the plugging cap of the present invention；
Fig. 4 is the side view of Fig. 3.
In figure: 1. syringe needle, 2. injection-tube, 3. plugging cap, 301. cap head, 302. sheaths, 303. closure post, 4. air inlets,
5. piston core bar, 6. external screw thread, 7. graduation mark, 8. sealing ring.
Detailed description of the invention
As it can be seen, this Chromatographic Analysis of Transformer oil experiment use nitrogen injections device, including injection-tube 2, be located at injection-tube 2 before
The syringe needle 1 held, the piston core bar 5 being located in injection-tube 2, described injection-tube 2, piston core bar 5 all use steel material to make.
The most uniformly offer multiple air inlet 4 on the circumferential side wall of described injection-tube 2, at described air inlet 4, be provided with envelope
Blocking cap 3, described plugging cap 3 is by the cap head 301 being affixed with air inlet 4 outer face, the closure post that is inserted into air inlet 4 the inner
303, being placed on the sheath 302 outside air inlet 4 to form, the cap head 301 of described plugging cap 3 is rubber cap head, described closure post
303 and sheath 302 concentric and both upper ends be jointly molded in rubber cap head, the inner face of described closure post 303 is cambered surface
And it is identical with the radian of the circumferential side wall of injection-tube 2.Described piston core bar 5 is hollow-core construction, the front end of described piston core bar 5
Being provided with external screw thread 6, the circumferential side wall of described injection-tube 2 is provided with elongated internal thread, described piston core bar 5 and injection-tube 2 spiral shell
Line links together, and the rear inside of described injection-tube 2 is provided with and piston core bar 5 in being provided with annular groove and described annular groove
The sealing ring 8 of laminating.The scale representing gas injected slurry volume it is provided with along its length on the circumferential side wall of described piston core bar 5
Line 7, the quantity of described graduation mark 7 is two and 180 degree of layouts of difference, and described graduation mark 7 is other is provided with numeral mark and by front
It is sequentially reduced after to zero, when the front end of piston core bar 5 is resisted against the inner bottom surface of injection-tube 2, zero quarter of described graduation mark 7
Spending concordant with the rear end face of injection-tube 2, the position that the corresponding air inlet 4 of described graduation mark 7 is fully opened is redness.
The using method of this nitrogen injections device, comprises the steps:
1), use before, piston core bar 5 is screwed completely in syringe 2, the end in piston core bar 5 front end face and syringe 2
Face contacts.Then, inject the nitrogen volume in sample oil as required, select entering on corresponding injection-tube 2 circumferential side wall
Gas port 4 is connected with nitrogen storage cylinder outlet, and remaining air inlet 4 all blocks with plugging cap 3；
2), piston core bar 5 is screwed to injection-tube 2 rear end, select when representing on the graduation mark 7 observed on piston core bar 5
The full opening of red-label of air inlet 4 after stop, then opening the valve of nitrogen storage cylinder outlet, nitrogen enters injection-tube
Inner air tube is made to be discharged by syringe needle in 2；
3), then the graduation mark 7 being exposed to outside injection-tube 2 is observed, while screw piston core bar 5 to institute to injection-tube 2 front end in limit
At the corresponding scale of nitrogen volume to be injected, now, air inlet 4 is blocked by piston core bar 5；
4), by the syringe needle 1 of syringe 2 insert in the syringe equipped with sample oil, the most slowly screw piston core bar 5, will note
Nitrogen in emitter 2 is injected with in the syringe of sample oil, completes to balance the injection of carrier gas.
Claims (3)
1. a nitrogen injections device is used in Chromatographic Analysis of Transformer oil experiment, the syringe needle of including injection-tube, being located at syringe front end,
The piston core bar being located in injection-tube, it is characterised in that: described injection-tube, piston core bar all use steel material to make, described
The most uniformly offer multiple air inlet on the circumferential side wall of injection-tube, at described air inlet, be provided with plugging cap, described
Plugging cap by the cap head being affixed with air inlet outer face, be inserted into the inner closure post of air inlet, be placed on the sheath outside air inlet
Composition, the inner face of described closure post is cambered surface and identical with the radian of the circumferential side wall of injection-tube, and described piston core bar is hollow
Structure, the front end of described piston core bar is provided with external screw thread, and the circumferential side wall of described injection-tube is provided with elongated internal thread, described work
Plug core bar and injection-tube are threaded togather, and the rear inside of described injection-tube sets in being provided with annular groove and described annular groove
Have and the sealing ring of piston core bar laminating, the circumferential side wall of described piston core bar is provided with expression gas along its length and injects body
Long-pending graduation mark, the quantity of described graduation mark is two and 180 degree layout of difference, be provided with by described graduation mark digital mark and by
A-P is sequentially reduced to zero, when the front end of piston core bar is resisted against the inner bottom surface of injection-tube, the zero graduation of described graduation mark with
The rear end face of injection-tube is concordant, and the position that described graduation mark correspondence air inlet is fully opened is redness.
Chromatographic Analysis of Transformer oil experiment nitrogen injections device the most according to claim 1, it is characterised in that: described envelope
The cap head of blocking cap is rubber cap head, and described closure post and sheath concentric and both upper ends are molded jointly in rubber cap head.
3. a using method for Chromatographic Analysis of Transformer oil experiment nitrogen injections device as claimed in claim 1, its feature
It is, comprises the steps:
1) inject the nitrogen volume in sample oil, as required, select the air inlet on corresponding injection-tube circumferential side wall and nitrogen
Gas bomb outlet is connected, and remaining air inlet all blocks with plugging cap；
2), piston core bar is screwed to injection-tube rear end, when the air inlet representing selection on the graduation mark observed on piston core bar
Stopping after full opening of red-label, then open the valve of nitrogen storage cylinder outlet, nitrogen is empty in making pipe in entering injection-tube
Gas is discharged by syringe needle；
3), then the graduation mark being exposed to outside injection-tube is observed, while screw piston core bar to be injected to syringe front end in limit
At the corresponding scale of nitrogen volume, now, air inlet is blocked by piston core bar；
4), by the syringe needle of syringe insert in the syringe equipped with sample oil, the most slowly screw piston core bar, by syringe
Nitrogen be injected with sample oil syringe in, complete balance carrier gas injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610427433.4A CN105842367B (en) | 2016-06-16 | 2016-06-16 | Chromatographic Analysis of Transformer oil experiment nitrogen injections device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610427433.4A CN105842367B (en) | 2016-06-16 | 2016-06-16 | Chromatographic Analysis of Transformer oil experiment nitrogen injections device and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105842367A true CN105842367A (en) | 2016-08-10 |
| CN105842367B CN105842367B (en) | 2017-06-27 |
Family
ID=56576168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610427433.4A Active CN105842367B (en) | 2016-06-16 | 2016-06-16 | Chromatographic Analysis of Transformer oil experiment nitrogen injections device and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105842367B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596950A (en) * | 2018-12-13 | 2019-04-09 | 国网山东省电力公司电力科学研究院 | Microbubble Discharge Simulation experimental provision in a kind of flowing transformer oil |
| CN112550870A (en) * | 2020-12-09 | 2021-03-26 | 黄山小罐茶业有限公司 | Continuous production line for multi-packaged small-pot tea |
| CN112623340A (en) * | 2020-12-09 | 2021-04-09 | 黄山小罐茶业有限公司 | Nitrogen cabin for nitrogen-filled tea packaging |
| CN113148298A (en) * | 2020-12-09 | 2021-07-23 | 黄山小罐茶业有限公司 | Preparation method of multi-packaged small-pot tea |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6468657A (en) * | 1987-09-09 | 1989-03-14 | Dow Chemical Japan | Method and device for dispensing column chromatography eluate |
| US6164144A (en) * | 1997-12-18 | 2000-12-26 | Varian, Inc. | Method and device for solid phase microextraction |
| JP2004108884A (en) * | 2002-09-17 | 2004-04-08 | Jasco Corp | Minute flow rate pump, flow injection analysis device using it and high speed liquid chromatograph |
| CN201346409Y (en) * | 2008-08-15 | 2009-11-18 | 华南师范大学 | Controllable pressurizing chromatographic separation column |
| JP2010066158A (en) * | 2008-09-11 | 2010-03-25 | Shimadzu Corp | Syringe, and infusion sample introducing device using the same |
| JP2013170925A (en) * | 2012-02-21 | 2013-09-02 | Isuzu Motors Ltd | Syringe, microsyringe, and injection method to analyzer |
| CN203443940U (en) * | 2013-08-22 | 2014-02-19 | 中国石油天然气股份有限公司 | Online chromatographic decompressing sample-injection device |
| CN105606720A (en) * | 2015-11-20 | 2016-05-25 | 国网山东青州市供电公司 | Electric power gas chromatography sample-preparation exhaust device |
-
2016
- 2016-06-16 CN CN201610427433.4A patent/CN105842367B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6468657A (en) * | 1987-09-09 | 1989-03-14 | Dow Chemical Japan | Method and device for dispensing column chromatography eluate |
| US6164144A (en) * | 1997-12-18 | 2000-12-26 | Varian, Inc. | Method and device for solid phase microextraction |
| JP2004108884A (en) * | 2002-09-17 | 2004-04-08 | Jasco Corp | Minute flow rate pump, flow injection analysis device using it and high speed liquid chromatograph |
| CN201346409Y (en) * | 2008-08-15 | 2009-11-18 | 华南师范大学 | Controllable pressurizing chromatographic separation column |
| JP2010066158A (en) * | 2008-09-11 | 2010-03-25 | Shimadzu Corp | Syringe, and infusion sample introducing device using the same |
| JP2013170925A (en) * | 2012-02-21 | 2013-09-02 | Isuzu Motors Ltd | Syringe, microsyringe, and injection method to analyzer |
| CN203443940U (en) * | 2013-08-22 | 2014-02-19 | 中国石油天然气股份有限公司 | Online chromatographic decompressing sample-injection device |
| CN105606720A (en) * | 2015-11-20 | 2016-05-25 | 国网山东青州市供电公司 | Electric power gas chromatography sample-preparation exhaust device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596950A (en) * | 2018-12-13 | 2019-04-09 | 国网山东省电力公司电力科学研究院 | Microbubble Discharge Simulation experimental provision in a kind of flowing transformer oil |
| CN109596950B (en) * | 2018-12-13 | 2021-03-19 | 国网山东省电力公司电力科学研究院 | Microbubble simulation experiment device that discharges in flowing transformer oil |
| CN112550870A (en) * | 2020-12-09 | 2021-03-26 | 黄山小罐茶业有限公司 | Continuous production line for multi-packaged small-pot tea |
| CN112623340A (en) * | 2020-12-09 | 2021-04-09 | 黄山小罐茶业有限公司 | Nitrogen cabin for nitrogen-filled tea packaging |
| CN113148298A (en) * | 2020-12-09 | 2021-07-23 | 黄山小罐茶业有限公司 | Preparation method of multi-packaged small-pot tea |
| CN112550870B (en) * | 2020-12-09 | 2022-04-29 | 黄山小罐茶业有限公司 | Continuous production line for multi-packaged small-pot tea |
| CN112623340B (en) * | 2020-12-09 | 2022-07-22 | 黄山小罐茶业有限公司 | A nitrogen gas cabin for tealeaves fills nitrogen packing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105842367B (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105842367A (en) | Nitrogen injection device for transformer oil chromatographic analysis experiment and use method of nitrogen injection device | |
| CN206862714U (en) | A kind of soil environment detection gas sampling device | |
| CN205672925U (en) | A kind of laboratory reextraction separatory funnel | |
| CN204758335U (en) | Chromatogram sampler | |
| CN112924249A (en) | Sampling and injecting device and method for carbon isotope analysis of slurry gas | |
| CN207051040U (en) | A kind of two-stage metered shot device | |
| CN201993258U (en) | Quartz cracking tube used for microconstituent analysis | |
| CN107389841B (en) | A kind of hermetically sealed sample injector of dielectric oil chromatographic analysis | |
| CN207675257U (en) | A kind of concrete mixture quantitative sampling device for liquid | |
| CN108120619A (en) | Closed sampler and high-temperature smokeless sampling method | |
| CN212748416U (en) | Portable sampling device for transformer insulating oil | |
| CN109772218B (en) | Quantitative reagent injection device | |
| CN205426562U (en) | Blood serum sampler | |
| CN104569227B (en) | Gas injection device and method for insulating oil container | |
| CN105973578A (en) | High temperature and high pressure testing apparatus and operation method | |
| CN201500125U (en) | Blood taking needle for blood and Qi of artery | |
| CN209342415U (en) | A kind of underground coal mine sampler | |
| CN205719515U (en) | Pressure break starts spool assay device | |
| CN207587693U (en) | A kind of accurate sampling of isotope mass spectrometer and sampling device | |
| CN207689213U (en) | A kind of syringe for shifting the single-needle double needle of gas | |
| CN205785924U (en) | A kind of new liquid sampler | |
| CN206896353U (en) | One kind is used for the detachable multisample effusion sampler of division of endocrinology | |
| CN208017874U (en) | Molten syringe | |
| CN220982759U (en) | Water resource sampling device | |
| CN221148178U (en) | Liquid layered sampler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |