CN201464440U - Device for distributing air precisely by utilizing gas chromatograms - Google Patents
Device for distributing air precisely by utilizing gas chromatograms Download PDFInfo
- Publication number
- CN201464440U CN201464440U CN200920111375XU CN200920111375U CN201464440U CN 201464440 U CN201464440 U CN 201464440U CN 200920111375X U CN200920111375X U CN 200920111375XU CN 200920111375 U CN200920111375 U CN 200920111375U CN 201464440 U CN201464440 U CN 201464440U
- Authority
- CN
- China
- Prior art keywords
- outer piston
- handle
- inner carrier
- distribution tube
- 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.)
- Expired - Fee Related
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- 239000007787 solid Substances 0.000 claims abstract description 22
- 239000008393 encapsulating agent Substances 0.000 claims description 16
- 238000004817 gas chromatography Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 239000003566 sealing material Substances 0.000 abstract 3
- 239000000126 substance Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000012925 reference material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010812 external standard method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 238000010813 internal standard method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a device for distributing air precisely by utilizing gas chromatograms. The device includes an air distributing cylinder, an inner piston, a sealing material, an outer piston, a handle, a solid pull rod, a hollow pull rod and a rear cover 8. The device adopts the method of arranging the sealing material between an inner piston rod and an outer piston rod, regulates the sealing state of the sealing material and the air distributing cylinder through the handle, and achieves the state meeting the sealing requirement; and by moving the handle forwards or backwards through the central line, the solid pull rod can be driven to move forwards or backwards in the central line direction, the outer piston 2 can be driven to move synchronously, then the volume change of the air distributing cylinder can realized, and the requirement of the air distributing device on the volume can be met.
Description
One, technical field
The utility model relates to the device of the accurate distribution of a kind of gas chromatography, mainly is used in the drafting of typical curve in the gas chromatographic analysis gas, also is a kind of device of preparing gas concentration in the chemical field.
Two, background technology
When utilizing the concentration of gas chromatographic detection volatile organic compounds, need accurately to prepare the standard substance of a series of variable concentrations and component, adopt internal standard method or external standard method to determine the concentration of the standard substance of preparing and the linear relationship of peak area or peak height, and then unknown volatile organic compounds is done qualitative and quantitative analysis detect, therefore adopt the high air distributing device of accuracy accurately to prepare the standard substance of a series of variable concentrations and component, the pairing material of accurate detection is played a part crucial.
The known qualitative and quantitative standards material of gas chromatography that is used for mainly is pressure distribution or quality distribution by the gas sample, because its working routine is more, equipment constitutes complicated, the condition of work strictness, working environment there is specific (special) requirements, therefore common laboratory and detection unit are than the relevant gas distributing system of difficult foundation, though standard substance is easy to use, but the series standard material concentration and the species that are provided are more limited, cost an arm and a leg, retention cycle is shorter, thereby uses standard substance to be subjected to significant limitation; Prepare the material of a series of variable concentrations and component in addition by syringe, qualitative and quantitative contrast also is more common a kind of method with standard substance then, but because employed syringe volume is limited, therefore the amount of added reference material is also less when the gas of preparation low concentration, the concentration of preparing is difficult to control, theoretical concentration of being prepared and measured value error are bigger, make that the linear relationship of pairing peak area of reference material concentration or peak height is relatively poor, thereby directly have influence on the accuracy as a result of measurement, because the structure of glass syringe determines, the ground glass distance of sealing usefulness is longer, when the preparation light concentration gas, sealing effectiveness does not reach the requirement of accurate mensuration, gas loses easily, cause the error of the gas concentration that will prepare and testing result bigger, influence the mensuration of gas chromatography typical curve, thereby have influence on the accuracy of measuring test substance.
Three, summary of the invention
The purpose of this utility model provides the device of the accurate distribution of a kind of gas chromatography, and it comprises distribution tube, inner carrier, encapsulant, outer piston, handle, solid pull bar, hollow draw-bar and bonnet 8.Adopt the method that encapsulant is set between the inside and outside piston rod, regulate the sealing state of encapsulant and distribution tube by handle, by along center line moving handle forward or backward, driving solid pull bar moves forward or backward along centerline direction, drive outer piston 2 same moved further simultaneously, realize the volume change of distribution tube 1, reach the requirement of air distributing device volume.
Fig. 1 forms structural drawing for the utility model, and it comprises distribution tube 1, inner carrier 2, encapsulant 3, outer piston 4, handle 5, solid pull bar 6, hollow draw-bar 7 and bonnet 8.Inner carrier 2, encapsulant 3, outer piston 4, solid pull bar 6 and hollow draw-bar 7 are formed piston element, inner carrier 2 is a solid cylinder, on the welding inner carrier 2 of solid pull bar 6, the other end is passed bonnet 8 and is threaded with handle 5, the solid pull bar 6 of inner carrier 2 intermittently is engaged in the hollow draw-bar 7 of outer piston 4, encapsulant 3 is arranged between inner carrier 2 and the outer piston 4, itself and distribution tube 1 form interference fit, the piston element that assembles is packed in the distribution tube 1, the central lines of its center line and distribution tube 1, bonnet 5 is threaded with distribution tube 1 is arranged.
Principle of work of the present utility model
During work, rotary handle 5 is regulated the sealing state of encapsulant 3 and distribution tube, because inner carrier 2 and solid pull bar and outer piston and hollow draw-bar are clearance fit, and outer piston 4 can move along center line is parallel with hollow draw-bar 7, when clockwise adjusting handle, handle is pushed ahead and is driven hollow draw-bar and moves forward, to drive outer piston 4 simultaneously moves forward synchronously, thereby make encapsulant 3 produce deformation to direction perpendicular to center line, realize the interference fit of encapsulant and distribution tube inwall, realize that air distributing device is to bubble-tight requirement.When satisfying impermeability and require, along center line moving handle forward or backward, drive solid pull bar and move forward or backward along centerline direction, drive the same moved further of outer piston simultaneously, realize the volume change of distribution tube, reach the requirement of air distributing device to volume.
Compare advantage of the present utility model with known technology
(1) gas tightness of the present utility model is good; Can accurately measure the distribution volume; Needs when (2) this Design of device scheme can satisfy the physicochemical property distribution of different distribution volumes and gas with various; (3) this device can also be as the sampler bag of gas collecting, is a kind of cheap, sampling apparatus that applicability is strong, easy to operate.
Four, description of drawings
Fig. 1 is that the utility model is formed structural drawing, and 1 is the distribution tube among the figure, the 2nd, and inner carrier, the 3rd, encapsulant, the 4th, outer piston, the 5th, handle, the 6th, solid pull bar, the 7th, hollow draw-bar, the 8th, bonnet.
Five, embodiment
Structure as shown in Figure 1, it comprises distribution tube 1, inner carrier 2, encapsulant 3, outer piston 4, handle 5, solid pull bar 6, hollow draw-bar 7 and bonnet 8.Inner carrier 2, encapsulant 3, outer piston 4, solid pull bar 6 and hollow draw-bar 7 are formed piston element, inner carrier 2 is a solid cylinder, on the welding inner carrier 2 of solid pull bar 6, the other end is passed bonnet 8 and is threaded with handle 5, the solid pull bar 6 of inner carrier 2 intermittently is engaged in the hollow draw-bar 7 of outer piston 4, encapsulant 3 is arranged between inner carrier 2 and the outer piston 4, itself and distribution tube 1 form interference fit, the piston element that assembles is packed in the distribution tube 1, the central lines of its center line and distribution tube 1, bonnet 5 is threaded with distribution tube 1 is arranged.
Claims (1)
1. the device of the accurate distribution of gas chromatography, it is characterized in that: it comprises distribution tube (1), inner carrier (2), encapsulant (3), outer piston (4), handle (5), solid pull bar (6), hollow draw-bar (7) and bonnet (8), inner carrier (2) encapsulant (3), outer piston (4), solid pull bar (6) and hollow draw-bar (7) are formed piston element, inner carrier (2) is a solid cylinder, on the welding inner carrier (2) of solid pull bar (6), the other end is passed bonnet (8) and is threaded with handle (5), the solid pull bar (6) of inner carrier (2) intermittently is engaged in the hollow draw-bar (7) of outer piston (4), encapsulant (3) is arranged between inner carrier (2) and the outer piston (4), itself and distribution tube (1) form interference fit, the piston element that assembles is packed in the distribution tube (1), the central lines of its center line and distribution tube (1), bonnet (5) is threaded with distribution tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920111375XU CN201464440U (en) | 2009-05-13 | 2009-05-13 | Device for distributing air precisely by utilizing gas chromatograms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920111375XU CN201464440U (en) | 2009-05-13 | 2009-05-13 | Device for distributing air precisely by utilizing gas chromatograms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464440U true CN201464440U (en) | 2010-05-12 |
Family
ID=42391790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920111375XU Expired - Fee Related CN201464440U (en) | 2009-05-13 | 2009-05-13 | Device for distributing air precisely by utilizing gas chromatograms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201464440U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458350A (en) * | 2014-12-18 | 2015-03-25 | 天津理工大学 | Gas capture concentration device and working method thereof for improving gas measurement sensitivity |
| CN105181860A (en) * | 2015-08-11 | 2015-12-23 | 昆山禾信质谱技术有限公司 | Gas concentration quasi-static regulation device based on mass spectrum feedback and regulation method |
| CN113049757A (en) * | 2021-03-31 | 2021-06-29 | 重庆文理学院 | Continuous piston type air distribution device for experiment |
-
2009
- 2009-05-13 CN CN200920111375XU patent/CN201464440U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458350A (en) * | 2014-12-18 | 2015-03-25 | 天津理工大学 | Gas capture concentration device and working method thereof for improving gas measurement sensitivity |
| CN105181860A (en) * | 2015-08-11 | 2015-12-23 | 昆山禾信质谱技术有限公司 | Gas concentration quasi-static regulation device based on mass spectrum feedback and regulation method |
| CN113049757A (en) * | 2021-03-31 | 2021-06-29 | 重庆文理学院 | Continuous piston type air distribution device for experiment |
| CN113049757B (en) * | 2021-03-31 | 2022-10-21 | 重庆文理学院 | Continuous piston type air distribution device for experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130513 |