CN205027705U - Gas chromatography column valve connecting device - Google Patents
Gas chromatography column valve connecting device Download PDFInfo
- Publication number
- CN205027705U CN205027705U CN201520616092.6U CN201520616092U CN205027705U CN 205027705 U CN205027705 U CN 205027705U CN 201520616092 U CN201520616092 U CN 201520616092U CN 205027705 U CN205027705 U CN 205027705U
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- China
- Prior art keywords
- gas chromatography
- chromatography column
- coupling arrangement
- valve
- thread part
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- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The utility model provides a pair of gas chromatography column valve connecting device, including a connecting pipe and with the joint valve that the connecting pipe is connected, the connecting pipe is a sleeve pipe, the sleeve pipe includes that the one end oral siphon places in and the intervalve of port pipe. The utility model discloses an it is a gas chromatography column valve connecting device to provide, easy cracked problem in the time of can overcoming current gas chromatography post connect switch valve.
Description
Technical field
The utility model is a kind of novel gas chromatography column valve coupling arrangement, relates to gas chromatographicanalyzer device field.
Background technology
In gas chromatographic analysis application, usually relate to chromatographic column connect transfer valve to realize complicated gas circuit switching and multi-dimensional chromatograph application.In stainless stee l packed column with the connection of transfer valve, there is comparative maturity technology can guarantee the sealing of fastness and the gas circuit be connected at present, but the material due to two interfaces contacted with each other in capillary gas chromatographic column with the connection of transfer valve is different, operation must be very careful, otherwise very easily causing kapillary to rupture and gas-path leakage occurs, therefore still having certain difficulty when being connected with transfer valve by gas chromatographic column.
Utility model content
Technical problem to be solved in the utility model is the defect for above-mentioned prior art, and the purpose of this utility model is that to be to provide be a kind of gas chromatography column valve coupling arrangement, can overcome the problem easily ruptured when existing gas chromatographic column connects transfer valve.
To achieve these goals, a kind of gas chromatography column valve coupling arrangement that the utility model provides, the joint valve comprising a connecting pipe and be connected with described connecting pipe, described connecting pipe is a sleeve pipe, and described sleeve pipe comprises Single port pipe and is built in the intervalve of described port tube.
Described gas chromatography column valve coupling arrangement, described port tube internal diameter 0.8mm, external diameter 1.6mm, long 2cm, described intervalve internal diameter 0.25mm, external diameter 0.79mm.
Described gas chromatography column valve coupling arrangement, described port tube and described intervalve material are stainless steel.
Described gas chromatography column valve coupling arrangement, described joint valve is a transfer valve, is provided with an internal thread part, one and the sealing of described internal thread part close communication, a through hole be communicated with described sealing in described transfer valve.
Described gas chromatography column valve coupling arrangement, described joint valve is two symmetrical integrated two-way valves of described transfer valve.
Described gas chromatography column valve coupling arrangement, is arranged with an internal thread part, one and the sealing of described internal thread part close communication, a through hole be communicated with described sealing respectively in described two-way valve.
Described gas chromatography column valve coupling arrangement, also comprises an external thread part, and described external thread part and described internal thread part are spirally connected.
Described gas chromatography column valve coupling arrangement, also comprise a sealing gasket, described sealing gasket is built in described sealing.
Described gas chromatography column valve coupling arrangement, described external thread part is provided with a round tube hole passed through for port tube, and the radius of described round tube hole is identical with described port tube radius.
Described gas chromatography column valve coupling arrangement, described sealing gasket is provided with a round tube hole passed through for port tube, and the radius of described round tube hole is identical with described port tube radius.
The utility model is compared with existing gas chromatography column valve connected mode, and its outstanding advantage is:
1) this connecting pipe is stainless steel, can not be chipping when connecting transfer valve, and joint good airproof performance, not easily leaks.
2) this associated line, flexibly bending, inside not easily blocks.
3) this associated line thermal conductivity is good, can be consistent with clack box temperature.
Utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is connecting pipe structure schematic diagram of the present utility model.
Fig. 2 is vertical view of the present utility model.
Fig. 3 is connecting pipe and transfer valve connection diagram.
Fig. 4 is the connection diagram of connecting pipe and gas chromatographic column two-way valve.
Wherein, Reference numeral
Connecting pipe 1
Port tube 11
Intervalve 12
Nut 2
Transfer valve 3
Internal thread part interface 31
Through hole 32
Sealing 33
Sealing gasket 331
Annular seal space 34
Gas chromatographic column two-way valve 4
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and principle of work are described in detail:
A kind of gas chromatography column valve coupling arrangement of the present utility model, as shown in Figures 1 to 4, the joint valve that this coupling arrangement comprises a connecting pipe 1 and is connected with connecting pipe, connecting pipe is a sleeve pipe, and sleeve pipe comprises Single port pipe 11 and is built in the intervalve 12 of port tube, port tube internal diameter 0.8mm, external diameter 1.6mm, long 2cm, intervalve internal diameter 0.25mm, external diameter 0.79mm.
The joint valve that the utility model adopts is transfer valve 3 or gas chromatographic column two-way valve 4, Figure 3 shows that connecting pipe and transfer valve connection diagram, an internal thread part interface 31 is provided with in this transfer valve 3, one with the sealing 33 of this internal thread part interface 31 close communication, one through hole 32 through with sealing portion, this coupling arrangement also comprises an external thread part and a sealing gasket 331, this external thread part is a nut 2, this nut 2 is spirally connected with internal thread part interface 31, sealing pad 331 is built in sealing 33, in nut 2 and sealing gasket 331 all open a round tube hole, this through hole is used for port tube to load in transfer valve, the radius of this round tube hole is identical with the radius of port tube, by port tube through nut, and sealing gasket, port tube enters after passing sealing gasket in through hole 32, then nut 2 and internal thread interface 32 are closely spirally connected, intervalve 12 is penetrated in transfer valve 3 in port tube 11, connecting pipe end in through hole 32 flushes, namely intervalve 12 flushes with port tube 11 end, during installation, first port tube 11 can be passed nut 2 and sealing gasket 331, then be installed in transfer valve 3, then intervalve 12 is penetrated in transfer valve 3 in port tube 11, or first intervalve 12 is built in port tube 11, then socket connecting pipe is together passed nut 2 and sealing gasket 331, then be installed in transfer valve 4.
With reference to Fig. 4, be connecting pipe 1 and the connection diagram of gas chromatographic column two-way valve 4.Gas chromatographic column two-way valve 4 is two symmetrical one-body molded connections of described transfer valve 3, the through hole 32 of two transfer valves forms an annular seal space 34, gas chromatographic column two-way valve 4 side is inlet end, opposite side is outlet side, inlet end side is provided with connecting pipe 1, by associated line through nut 2, stretch in annular seal space 34 after sealing gasket 331, side, outlet side is provided with gas chromatographic column 5, by gas chromatographic column 5 and through nut 2, stretch into after sealing gasket 331 in annular seal space, gap is had between annular seal space inner connection tube and gas chromatographic column, the sealing between associated line and gas chromatographic column can be realized by this connected mode.
Claims (10)
1. a gas chromatography column valve coupling arrangement, is characterized in that, the joint valve comprising a connecting pipe and be connected with described connecting pipe, and described connecting pipe is a sleeve pipe, and described sleeve pipe comprises Single port pipe and is built in the intervalve of described port tube.
2. gas chromatography column valve coupling arrangement according to claim 1, is characterized in that, described port tube internal diameter 0.8mm, external diameter 1.6mm, long 2cm, described intervalve internal diameter 0.25mm, external diameter 0.79mm.
3. gas chromatography column valve coupling arrangement according to claim 1, is characterized in that, described port tube and described intervalve material are stainless steel.
4. gas chromatography column valve coupling arrangement according to claim 1, it is characterized in that, described joint valve is a transfer valve, is provided with an internal thread part, one and the sealing of described internal thread part close communication, a through hole be communicated with described sealing in described transfer valve.
5. gas chromatography column valve coupling arrangement according to claim 4, is characterized in that, described joint valve is two symmetrical integrated two-way valves of described transfer valve.
6. gas chromatography column valve coupling arrangement according to claim 5, is characterized in that, is arranged with an internal thread part, one and the sealing of described internal thread part close communication respectively, a through hole be communicated with described sealing in described two-way valve.
7. gas chromatography column valve coupling arrangement according to claim 6, is characterized in that, also comprise an external thread part, and described external thread part and described internal thread part are spirally connected.
8. the gas chromatography column valve coupling arrangement according to claim 4 or 6, is characterized in that, also comprise a sealing gasket, described sealing gasket is built in described sealing.
9. gas chromatography column valve coupling arrangement according to claim 7, is characterized in that, described external thread part is provided with a round tube hole passed through for port tube, and the radius of described round tube hole is identical with described port tube radius.
10. gas chromatography column valve coupling arrangement according to claim 7, is characterized in that, described sealing gasket is provided with a round tube hole passed through for port tube, and the radius of described round tube hole is identical with described port tube radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616092.6U CN205027705U (en) | 2015-08-14 | 2015-08-14 | Gas chromatography column valve connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616092.6U CN205027705U (en) | 2015-08-14 | 2015-08-14 | Gas chromatography column valve connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027705U true CN205027705U (en) | 2016-02-10 |
Family
ID=55260228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520616092.6U Active CN205027705U (en) | 2015-08-14 | 2015-08-14 | Gas chromatography column valve connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205027705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031563A (en) * | 2019-04-28 | 2019-07-19 | 北京雪迪龙科技股份有限公司 | A kind of gas chromatograph-mass spectrograph time-sharing multiplex interface arrangement and detection method |
| CN111649050A (en) * | 2020-05-22 | 2020-09-11 | 中国科学院广州能源研究所 | Gas chromatography column connector |
-
2015
- 2015-08-14 CN CN201520616092.6U patent/CN205027705U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031563A (en) * | 2019-04-28 | 2019-07-19 | 北京雪迪龙科技股份有限公司 | A kind of gas chromatograph-mass spectrograph time-sharing multiplex interface arrangement and detection method |
| CN111649050A (en) * | 2020-05-22 | 2020-09-11 | 中国科学院广州能源研究所 | Gas chromatography column connector |
| CN111649050B (en) * | 2020-05-22 | 2021-07-20 | 中国科学院广州能源研究所 | Gas chromatography column connector |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |