CN204514881U - A kind of gas chromatograph injection port volume control device - Google Patents
A kind of gas chromatograph injection port volume control device Download PDFInfo
- Publication number
- CN204514881U CN204514881U CN201520244895.3U CN201520244895U CN204514881U CN 204514881 U CN204514881 U CN 204514881U CN 201520244895 U CN201520244895 U CN 201520244895U CN 204514881 U CN204514881 U CN 204514881U
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- China
- Prior art keywords
- fixture
- glass tube
- injection port
- connector
- air cushion
- 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
Links
- 238000002347 injection Methods 0.000 title claims abstract description 15
- 239000007924 injection Substances 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 229920001971 elastomer Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- 238000004033 diameter control Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a kind of gas chromatograph injection port volume control device, comprises Connection Block, fixture, sealing shroud, air cushion, glass tube and connector, and is connected and fixed successively.Described fixture is fixed on one end of wireway gas outlet, is provided with Connection Block in the rear end of fixture, is provided with sealing shroud, air cushion and connector successively in the front end of fixture, and glass tube is through the center of air cushion, and wireway is stretched in one end, and the other end stretches in connector.The beneficial effects of the utility model are: install, dismantle all easily, good airproof performance, can better regulate injection port airshed size, improves the effect detected.
Description
Technical field:
The utility model relates to a kind of gas chromatograph injection port volume control device, belongs to chromatograph manufacturing equipment technical field.
Background technology:
In gas chromatograph, in order to adjust the carrier gas quantity delivered from high-pressure gas cylinder, have employed flow controller (volume control device), described flow controller is the flow control mechanism carrying the equipment such as flowrate control valve, pressure transducer, flow sensor on the stream substrate that inside is provided with stream.Because the connecting portion of stream is many, although the O type circle that the connecting portion fluororubber etc. between component parts and stream is made is to keep impermeability, there is internal gas and to leak from these connecting portions or extraneous air and impurity are mixed into the possibility of stream inside.Even the extraneous air of trace or impurity are mixed in the stream of gas chromatograph, just likely impact is brought on the analysis result of gas chromatograph.The component parts that stream connects is more, and this danger is higher.
Summary of the invention:
The purpose of this utility model is to provide a kind of gas chromatograph injection port volume control device that can regulate injection port airshed size.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of gas chromatograph injection port volume control device, comprises Connection Block, fixture, sealing shroud, air cushion, glass tube and connector, and is connected and fixed successively.Described fixture is fixed on one end of wireway gas outlet, is provided with Connection Block in the rear end of fixture, is provided with sealing shroud, air cushion and connector successively in the front end of fixture, and glass tube is through the center of air cushion, and wireway is stretched in one end, and the other end stretches in connector.
The connection of described Connection Block, sealing shroud and connector is for being threaded.
Described air cushion is rubber blanket, and center is provided with glass tube perforation vertically, in order to penetrate glass tube.
The internal orifice dimension of described glass tube is 0.3-1mm, and the glass tube that flow hour selects internal diameter less, when flow is larger, can select the glass tube that internal diameter is larger, and the glass tube varied in size by changing internal diameter controls injection port airshed size.
The beneficial effects of the utility model are: install, dismantle all easily, good airproof performance, can better regulate injection port airshed size, improves the effect detected.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is one-piece construction schematic diagram of the present utility model.
In figure: 1 Connection Block, 2 fixtures, 3 sealing shrouds, 4 air cushions, 5 glass tubes, 6 connectors, 7 wireways.
Embodiment:
As shown in Figure 1, a kind of gas chromatograph injection port volume control device, comprise Connection Block (1), fixture (2), sealing shroud (3), air cushion (4), glass tube (5) and connector (6), and be connected and fixed successively.Described fixture (2) is fixed on one end of wireway (7) gas outlet, Connection Block (1) is provided with in the rear end of fixture (2), sealing shroud (3), air cushion (4) and connector (6) is provided with successively in the front end of fixture (2), glass tube (5) is through the center of air cushion (4), wireway (7) is stretched in one end, and the other end stretches in connector (6).The connection of Connection Block (1), sealing shroud (3) and connector (6) for being threaded, install, convenient disassembly.Air cushion (4) is rubber blanket, good sealing effect, and center is provided with glass tube (5) perforation vertically, in order to penetrate glass tube (5).The internal orifice dimension of described glass tube (5) is 0.3-1mm, flow hour uses the glass tube (5) that internal diameter is less, when flow is larger, can use the glass tube (5) that internal diameter is larger, the glass tube (5) varied in size by changing internal diameter controls injection port airshed size.
Method of operating: fixture (2) is fixed on one end of wireway (7) gas outlet, be provided with Connection Block (1) in the rear end of fixture (2), be provided with sealing shroud (3), air cushion (4) and connector (6) in the front end of fixture (2) successively.Connection Block (1) and sealing shroud (3) are threaded connection and are fixed together, then a glass tube with air cushion (4) (5) is got according to actual needs, from the front end of sealing shroud (3), wireway (7) is inserted in one end of glass tube (5), the other end inserts in connector (6), then connector (6) and sealing shroud (3) is threaded connection and is fixed together.In order to the sealing of intensifier, between Connection Block (1) and sealing shroud (3) and between sealing shroud (3) and connector (6), respectively increase an O type rubber ring.
When needs change glass tube (5), only sealing shroud (3) and connector (6) need be taken apart, again sealing shroud (3) and connector (6) are threaded connection after changing glass tube (5) and be fixed together.
Claims (3)
1. a gas chromatograph injection port volume control device, it is characterized in that: comprise Connection Block, fixture, sealing shroud, air cushion, glass tube and connector, and be connected and fixed successively, fixture is fixed on one end of wireway gas outlet, be provided with Connection Block in the rear end of fixture, be provided with sealing shroud, air cushion and connector successively in the front end of fixture, glass tube is through the center of air cushion, wireway is stretched in one end, and the other end stretches in connector.
2. gas chromatograph injection port volume control device according to claim 1, is characterized in that: described air cushion is rubber blanket, and center is provided with glass tube perforation vertically.
3. gas chromatograph injection port volume control device according to claim 1, is characterized in that: the internal orifice dimension of described glass tube is 0.3-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244895.3U CN204514881U (en) | 2015-04-16 | 2015-04-16 | A kind of gas chromatograph injection port volume control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244895.3U CN204514881U (en) | 2015-04-16 | 2015-04-16 | A kind of gas chromatograph injection port volume control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204514881U true CN204514881U (en) | 2015-07-29 |
Family
ID=53712841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520244895.3U Expired - Fee Related CN204514881U (en) | 2015-04-16 | 2015-04-16 | A kind of gas chromatograph injection port volume control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204514881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404969A (en) * | 2016-08-31 | 2017-02-15 | 浙江福立分析仪器股份有限公司 | Flow regulation monitoring system for gas chromatograph and application method thereof |
| CN115541737A (en) * | 2022-08-29 | 2022-12-30 | 上海聚鼎半导体设备有限公司 | A fully automatic gas chromatograph connection device and installation method |
-
2015
- 2015-04-16 CN CN201520244895.3U patent/CN204514881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404969A (en) * | 2016-08-31 | 2017-02-15 | 浙江福立分析仪器股份有限公司 | Flow regulation monitoring system for gas chromatograph and application method thereof |
| CN115541737A (en) * | 2022-08-29 | 2022-12-30 | 上海聚鼎半导体设备有限公司 | A fully automatic gas chromatograph connection device and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20180416 |