CN209446345U - A kind of gas collecting device - Google Patents
A kind of gas collecting device Download PDFInfo
- Publication number
- CN209446345U CN209446345U CN201920071396.7U CN201920071396U CN209446345U CN 209446345 U CN209446345 U CN 209446345U CN 201920071396 U CN201920071396 U CN 201920071396U CN 209446345 U CN209446345 U CN 209446345U
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- China
- Prior art keywords
- gas collecting
- syringe
- way connection
- syringe needle
- connector
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Abstract
The utility model relates to a kind of gas collecting devices, including gas collecting container, syringe needle, syringe and three-way connection；One connector of the three-way connection is fixedly connected with the port of gas collecting container, and the connecting pin of a connector and syringe needle is detachably connected with, and the dispensing end of another connector and syringe is detachably connected with, and any joint of three-way connection is provided with valve；The utility model has the advantages of simple structure, low manufacture cost, and device itself repeated multiple times can use, and standardize the operating process of operator, improves effective operating efficiency, while reducing the influence for introducing air to testing result to a certain extent.
Description
Technical field
The utility model relates to a kind of gas collecting devices.
Background technique
Lithium ion battery chemical conversion, short circuit, thermal shock, high temperature storage, overcharge etc. under the conditions ofs can generate gas, gas is in electricity
Make inner pressure of battery increase, the separation of battery bulging, battery lamination structure, active material separation inside pond, causes to occur safe hidden
Suffer from.
In order to solve battery flatulence problem in actual production, need to be acquired flatulence and carry out a series of characterization hands
Section, such as gas-chromatography, carry out the qualitative and quantitative analysis etc. of ingredient, this is significantly for finding problem place.
And following problems are left for the gas collecting of lithium ion battery at present: when acquiring gas from lithium ion battery, needing
Diaphragm cannot be pierced through again by puncturing explosion-proof valve, generally required and used tylostyle, and from existing general commercially available gas collection bag
From the point of view of interface end, it is only suitable for connecing hose, is not suitable for connecing syringe needle, causes sampling inconvenient；And if directly using syringe to electricity
Pond is sampled or is sampled from gas collection bag using syringe, then during inputting chromatography, is all readily incorporated excessive
Air, it is qualitative to gas componant and quantitatively bring interference, cause test result inaccurate；Thus lacking one kind in the prior art can
Syringe needle and gas collecting bag effectively to be combined and complete the device of lithium ion battery gas collecting.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of gas collecting device, by syringe needle and
Gas collecting container effectively combines, and operator's gas collecting is facilitated to operate, and reduces the influence for introducing air to testing result.
To achieve the above object, the utility model uses following technical scheme:
A kind of gas collecting device, including gas collecting container, syringe needle, syringe and three-way connection；The three-way connection
A connector be fixedly connected with the port of gas collecting container, the connecting pin of a connector and syringe needle is detachably connected with, another
The dispensing end of a connector and syringe is detachably connected with, and any joint of three-way connection is provided with valve.
Further, the outer wall of two connectors of the three-way connection is equipped with external screw thread, and the dispensing end of the syringe is solid
Surely there is internally threaded sleeve one, the connecting pin of the syringe needle is fixed with internally threaded sleeve two, the internally threaded sleeve one and internal screw thread
Casing two is connected through a screw thread with two connectors of three-way connection respectively.
Further, two tip sides of the dispensing end of the syringe, the connecting pin of syringe needle and three-way connection are fixed
There is ring flange, the syringe and syringe needle pass through flanged joint with two connectors of three-way connection respectively.
Further, the gas collecting container is gas collecting case or Storage Time in Gas Collecting Bag.
Further, the syringe needle is tack needle or Tip-headed needle.
The beneficial effects of the utility model are as follows:
The utility model has the advantages of simple structure, low manufacture cost, and device itself repeated multiple times can use, before use, can be with
Using syringe cooperation valve to gas collecting container vacuum-pumping, air is discharged；Recycle syringe and valve cooperation realization pair
The acquisition deposit and conveying operations of lithium ion battery gas, have standardized the operating process of operator, improve effective operation
Efficiency, while reducing the influence for introducing air to testing result to a certain extent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the syringe construction schematic diagram of embodiment 1；
Fig. 3 is the structural schematic diagram of the syringe needle of the another embodiment of embodiment 1；
Fig. 4 is the structural schematic diagram of embodiment 2；
Fig. 5 is the syringe construction schematic diagram of embodiment 2；
Fig. 6 is the structural schematic diagram of the syringe needle of the another embodiment of embodiment 2；
Wherein: 1- gas collecting container, 2- syringe needle, 3- syringe, 4- three-way connection, 4a- connector, 4b- connector, 4c- connect
Head, 5- internally threaded sleeve one, 6- internally threaded sleeve two, 7- valve, 8- valve, 9- valve, 10- ring flange.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
Following embodiments and Figure of description is only that preferred embodiments of the present invention are described, not
The scope of the utility model is defined, under the premise of not departing from the spirit of the design of the utility model, ordinary skill
It is true should all to fall into the utility model claims book for the various changes and improvements that personnel make the technical solution of the utility model
In fixed protection scope.
Embodiment 1
A kind of gas collecting device shown in referring to Fig.1, including gas collecting container 1, syringe needle 2, syringe 3 and three connect
First 4.
Gas collecting container 1 in the present embodiment selects gas collecting box, is also possible to Storage Time in Gas Collecting Bag, leakproofness is good
Commercial product all may be used.
Three-way connection 4 is T-shaped, has connector 4a, connector 4b and connector 4c, is the air flue 4d of T shape inside three-way connection 4,
Three valves 7,8,9 are respectively set at three connectors 4a, 4b, 4c, control the on-off of gas circuit, connector 4a and gas collecting container
1 port is fixedly connected, and fixed form, can be using welding, sealant depending on the type of gas collecting container 1 and material
The modes such as bonding.
Referring to shown in Fig. 2, the dispensing end of the syringe 3 is fixed with the injection head position of one 5(syringe 3 of internally threaded sleeve
It is connected in threaded sleeve 5, not influencing injection head with 4 inside air flue 4d of three-way connection), the outer wall of connector 4b is equipped with external screw thread,
Internally threaded sleeve 1 and the connector 4b of three-way connection 4 are connected through a screw thread, and then correspondence protrudes into the injection head of syringe 3 after connection
In air flue 4d；Being threadedly coupled itself has certain leakproofness, and those skilled in the art can also be according to the prior art in screw thread
Increase seal washer at faying face, is further ensured that sealing.
The connecting pin of the syringe needle 2 is fixed with internally threaded sleeve 26, and the outer wall of the connector 4c of three-way connection 4 is again provided with
External screw thread, internally threaded sleeve 26 is same as the connector 4c of three-way connection 4 to be connected through a screw thread.
Shown in referring to Figure 1 and Figure 3, the syringe needle 2 in the present embodiment uses two kinds of forms, and one kind is tack, and one kind is tip,
Tack needle uses when collecting gas for puncturing lithium ion battery explosion-proof valve；Tip-headed needle is used for sample input chromatography, i.e., defeated
Supply gas body when use.
The operating process of the present embodiment is as follows:
Gas collecting prepare: need that processing is exhausted to gas collecting container 1 before gas collecting, at this time closing valve 9,
Valve 7,8 is opened, gas collecting container 1 is vacuumized using syringe 3, exhausts vacuum shut-off valve door 7,8, is dismantled syringe
Air emptying in 3.
The volume of gas collecting container 1 is typically small, exhaust can be completed general 1-2 times, can also be with if volume is larger
Pumping exhaust is carried out using vacuum pump.
Gas collecting:
With syringe needle 2 pierce through lithium ion battery explosion-proof valve, close valve 7, open valve 8,9, then using syringe 3 into
Row pumping, after exhausting, syringe needle 2 should not be extracted from explosion-proof valve, close valve 9, opening valve 7,8, then will extract in syringe 3
It is stored for future use in gas injection gas collecting container 1, closes valve 7,8,9.
Gas detection:
Keep valve 9 close, open valve 7,8, using syringe 3 from gas collecting container 1 extraction belt detection gas,
It is then shut off valve 7, opens valve 9, then the gas in syringe 3 is injected into chromatography by syringe needle 2 and carries out gaseous sample
Detection.
Embodiment 2
Referring to shown in Fig. 4-6, the basic structure of the present embodiment is same as Example 1, the difference is that, syringe needle 2, injection
Device 3 is different from the connection type of three-way connection 4.
Two ends connector 4b, 4c of the dispensing end of the syringe 3 of the present embodiment, the connecting pin of syringe needle 2 and three-way connection 4
It is respectively and fixedly provided with ring flange 10, syringe 3 and syringe needle 2 pass through flanged joint with two connectors 4b, 4c of three-way connection 4 respectively.
In addition to the connection type of syringe needle 2, syringe 3 and three-way connection 4 that embodiment 1 and embodiment 2 are enumerated, it can also adopt
With the connection type etc. such as latched and card slot cooperates, those skilled in the art can carry out according to the prior art and actual needs
Selection replacement, is then no longer described in detail one by one herein.
Claims (5)
1. a kind of gas collecting device, which is characterized in that including gas collecting container, syringe needle, syringe and three-way connection；It is described
One connector of three-way connection is fixedly connected with the port of gas collecting container, and the connecting pin detachable of a connector and syringe needle connects
It connects, the dispensing end of another connector and syringe is detachably connected with, and any joint of three-way connection is provided with valve.
2. a kind of gas collecting device according to claim 1, which is characterized in that two connectors of the three-way connection
Outer wall is equipped with external screw thread, and the dispensing end of the syringe is fixed with internally threaded sleeve one, and the connecting pin of the syringe needle is fixed with
Internally threaded sleeve two, the internally threaded sleeve one and internally threaded sleeve two are connected with two connectors of three-way connection by screw thread respectively
It connects.
3. a kind of gas collecting device according to claim 1, which is characterized in that dispensing end, the syringe needle of the syringe
Connecting pin and two tip sides of three-way connection be respectively and fixedly provided with ring flange, the syringe and syringe needle respectively with three-way connection
Two connectors pass through flanged joint.
4. a kind of gas collecting device according to claim 1, which is characterized in that the gas collecting container is adopted for gas
Header or Storage Time in Gas Collecting Bag.
5. a kind of gas collecting device according to claim 1, which is characterized in that the syringe needle is tack needle or tip
Needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071396.7U CN209446345U (en) | 2019-01-16 | 2019-01-16 | A kind of gas collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071396.7U CN209446345U (en) | 2019-01-16 | 2019-01-16 | A kind of gas collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446345U true CN209446345U (en) | 2019-09-27 |
Family
ID=68018476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920071396.7U Active CN209446345U (en) | 2019-01-16 | 2019-01-16 | A kind of gas collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209446345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521663A (en) * | 2020-04-29 | 2020-08-11 | 安徽工业大学 | Gas collection and measurement device, electrochemical analysis and measurement system and measurement method |
| CN113431930A (en) * | 2021-06-30 | 2021-09-24 | 蜂巢能源科技有限公司 | Multi-way valve and collection device with same |
-
2019
- 2019-01-16 CN CN201920071396.7U patent/CN209446345U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521663A (en) * | 2020-04-29 | 2020-08-11 | 安徽工业大学 | Gas collection and measurement device, electrochemical analysis and measurement system and measurement method |
| CN111521663B (en) * | 2020-04-29 | 2022-09-27 | 安徽工业大学 | Gas collection and measurement device, electrochemical analysis and measurement system and measurement method |
| CN113431930A (en) * | 2021-06-30 | 2021-09-24 | 蜂巢能源科技有限公司 | Multi-way valve and collection device with same |
| CN113431930B (en) * | 2021-06-30 | 2023-05-23 | 蜂巢能源科技有限公司 | Multi-way valve and collection device with same |
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