CN201692691U - Chromatographic column pressuring piston body - Google Patents
Chromatographic column pressuring piston body Download PDFInfo
- Publication number
- CN201692691U CN201692691U CN201020168339XU CN201020168339U CN201692691U CN 201692691 U CN201692691 U CN 201692691U CN 201020168339X U CN201020168339X U CN 201020168339XU CN 201020168339 U CN201020168339 U CN 201020168339U CN 201692691 U CN201692691 U CN 201692691U
- Authority
- CN
- China
- Prior art keywords
- piston body
- piston
- inlet
- chromatographic column
- seal cover
- 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
Images
Landscapes
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The utility model discloses a chromatographic column pressuring piston body, and relates to the technical field of liquid-solid chromatographic separation in liquid chromatography. The chromatographic column pressuring piston body comprises a piston body, and is characterized in that a through-hole communicating the end surfaces on the inner and the outer sides are axially formed at the inner part of the piston body; an inlet converging plate, an inlet filter screen and a first guide seal sleeve are sequentially distributed on the inner side end of the piston body; a second guide seal sleeve is sleeved at the outer side end of the piston body; and a piston seal ring is arranged between the piston rod body and the first guide seal sleeve. The chromatographic column pressuring piston body is designed into a redundant double-sealing structure, thereby ensuring no-leakage of the piston; and by matching with an optimized flow channel design of the inlet converging plate, the aims of ensuring dynamic seal and balancing liquid distribution can be simultaneously achieved during sample loading.
Description
Technical field
The utility model relates to the liquid in a kind of liquid chromatography---fixation spectrum separation technology field, specifically a kind of chromatography column pressurizing piston body.
Background technology
High performance liquid chromatography is to utilize material to adsorb in two-phase or the fine difference of distribution coefficient reaches a kind of separation method of purpose of separation.When two-phase relatively moved, measured matter directly carried out repeatedly distribution in two-phase, made original small distribution difference produce the effect of amplifying like this, reached separation, analyzes and measure the purpose of some physicochemical constants.In this course, chromatographic column is the core of chromatographic separation process, and wherein axial pressure preparative chromatography column technology is a kind of preferable technology.
Axial pressurizing chromatographic column is the core place of whole system, and as previously described, this part is the compartment analysis effect that has directly determined chromatographic column at physical layer.And the chromatography column pressurizing piston body body assembly is not only the parts of the application of force as parts crucial in the chromatographic column, is also carrying the effect of going up sample inlet and movable sealing.These parts design and produce the key problem in technology point, to guarantee in the practice of movable sealing that zero leakage is a difficult point.
The utility model content
The purpose of this utility model is to provide a kind of chromatography column pressurizing piston body, adopts dynamic seal (packing) to optimize the runner design of inlet convergence plate, can guarantee the purpose of the distribution of dynamic seal (packing) and homogeneous (uniform) fluid when making sample simultaneously.
The technical scheme in the invention for solving the technical problem is: a kind of chromatography column pressurizing piston body, comprise the piston body body, it is characterized in that, described piston body body interior axially has the through hole that is communicated with inside and outside both sides end face, the inboard end of described piston body body is arranged inlet convergence plate, inlet screen and the first pilot seal cover successively, and the described first pilot seal cover is fixed on the inboard end face of piston body body with inlet convergence plate, inlet screen; Described piston body body outboard end is nested with the second pilot seal cover; Be provided with general plug envelope sealing ring on the described piston body body and between first pilot seal cover.
Be provided with seal with O ring on the described piston body body and between second pilot seal cover, constitute the double sealing structure with general plug envelope sealing ring.
The filtering accuracy of described inlet screen is smaller or equal to 1 micron.
The beneficial effects of the utility model are: hermetic unit is designed to the double sealing structure, can guarantees the zero leakage of piston.Cooperate the runner design of the inlet convergence plate optimized simultaneously, can guarantee the purpose of dynamic seal (packing) and homogeneous (uniform) fluid distribution in the time of can reaching sample simultaneously.
Description of drawings
Fig. 1 is a stereogram of the present utility model;
Fig. 2 is a full sectional view of the present utility model;
Fig. 3 is an exploded sketch;
Among the figure: 1 piston body body, 2 through holes, 3 connecting rods, 11 first seal grooves, 12 second seal grooves, 111 general plug envelope sealing rings, 121O shape sealing ring, 41 first pilot seal covers, 42 second pilot seal covers, 5 inlet convergence plate, 6 inlet screens.
The specific embodiment
Shown in Fig. 1～3, a kind of chromatography column pressurizing piston body comprises piston body body 1, and described piston body body shaft is to there being through hole 2, and this through hole is as the inlet of annex solution material, is communicated with inside and outside two end faces after running through the piston body body.Piston body body 1 integral body is cylindric, is provided with external screw thread at the position near two ends, and also is provided with the first seal groove 11 and the second seal groove 12 on piston only.There is connecting rod 3 piston body body 1 outer end.
Now with shown in Figure 1, the definition upper end is inboard, and the lower end correspondence is the outside, is described:
The groove of arranging up and down of this piston body body 1 is followed successively by the first seal groove 11 and the second seal groove 12, and be nested with general plug envelope sealing ring 111 and O RunddichtringO 121 in the first seal groove and the second seal groove respectively, piston body body 1 outside is by fixedly second pilot seal cover 42 of O RunddichtringO 121 that is threaded, fabricated structure, easy for installation.
This piston body body 1 inboard end face arranges that successively inlet convergence plate 5 (has passage on the cylinder manifold, allow that liquid passes plate body) and inlet screen 6, and inlet convergence plate and inlet screen are fixed on the piston body body 1 inboard end face by first pilot seal cover 41, liquid is hierarchical arrangement by the runner on the inlet convergence plate 5 of piston body styletable, realize that the turnover sample evenly distributes, and has further improved the post effect.Simultaneously, first pilot seal cover 41 also is fixed on general plug envelope sealing ring 111 in the first seal groove 11.
General plug envelope sealing ring is a high-performance seal of adorning special spring in a kind of U type Teflon, adds system fluid pressure by suitable spring force, sealing lip (face) is ejected and pushes down sealed metal covering gently to generate very excellent sealing effectiveness.The actuating effect of spring can overcome the slight eccentricity of metal mating surface and the abrasion of sealing lip, and continues to possess the sealing property of expection.
Be provided with seal with O ring on the described piston body body and between the outside pilot seal cover.Sealing in this structure is based on general plug envelope sealing ring, and seal with O ring adopts the big material of decrement, forms the sealing of second road, and redundant double sealing can at utmost guarantee the zero leakage of piston.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (3)
1. chromatography column pressurizing piston body, comprise the piston body body, it is characterized in that, described piston body body interior axially has the through hole that is communicated with inside and outside both sides end face, the inboard end of described piston body body is arranged inlet convergence plate, inlet screen and the first pilot seal cover successively, and the described first pilot seal cover is fixed on the inboard end face of piston body body with inlet convergence plate, inlet screen; Described piston body body outboard end is nested with the second pilot seal cover; Be provided with general plug envelope sealing ring on the described piston body body and between first pilot seal cover.
2. a kind of chromatography column pressurizing piston body according to claim 1 is characterized in that, is provided with seal with O ring on the described piston body body and between second pilot seal cover.
3. a kind of chromatography column pressurizing piston body according to claim 1 is characterized in that the filtering accuracy of described inlet screen is smaller or equal to 1 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020168339XU CN201692691U (en) | 2010-04-23 | 2010-04-23 | Chromatographic column pressuring piston body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020168339XU CN201692691U (en) | 2010-04-23 | 2010-04-23 | Chromatographic column pressuring piston body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201692691U true CN201692691U (en) | 2011-01-05 |
Family
ID=43393936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020168339XU Expired - Fee Related CN201692691U (en) | 2010-04-23 | 2010-04-23 | Chromatographic column pressuring piston body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201692691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822913A (en) * | 2010-04-23 | 2010-09-08 | 聊城万合工业制造有限公司 | Chromatography column pressurizing piston body |
| CN104791238A (en) * | 2014-01-17 | 2015-07-22 | 沈如华 | High-efficiency color paste color mixing pump |
-
2010
- 2010-04-23 CN CN201020168339XU patent/CN201692691U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822913A (en) * | 2010-04-23 | 2010-09-08 | 聊城万合工业制造有限公司 | Chromatography column pressurizing piston body |
| CN104791238A (en) * | 2014-01-17 | 2015-07-22 | 沈如华 | High-efficiency color paste color mixing pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100189602A1 (en) | Separation device with moveable filling channel | |
| JP4909513B2 (en) | Method for controlling chromatographic columns and absorbent density | |
| US8936723B2 (en) | Chromatography column with large diameter end fitting openings | |
| CN201692691U (en) | Chromatographic column pressuring piston body | |
| CN104165227B (en) | A kind of detachable rotating shaft lip-shaped sealing device | |
| CN102353584A (en) | Cylindrical rock core true triaxial gripper | |
| CN105276224A (en) | Pinch valve of high-sealing structure for railway sanitary valve | |
| CN104897711B (en) | Core holding unit | |
| CN201121677Y (en) | Pressure-adjustable gas spring | |
| CN102323360A (en) | Annular sieve plate for liquid chromatographic column | |
| CN202700140U (en) | Liquid chromatography column | |
| CN101822913A (en) | Chromatography column pressurizing piston body | |
| CN105092383B (en) | Packing element sets visual test device | |
| CN202569652U (en) | Preparation chromatographic column | |
| Szabó et al. | Influence of the pore structure on the properties of silica based reversed phase packings for LC | |
| CN205815185U (en) | A kind of liquid chromatography separation column | |
| CN104477160B (en) | Three-wheeled motor car air brake valve | |
| CN103007577B (en) | Device for filling gas chromatographic column | |
| Du et al. | A comparative study of the separation of oleanolic acid and ursolic acid in Prunella vulgaris by high-performance liquid chromatography and cyclodextrin-modified micellar electrokinetic chromatography | |
| CN206414800U (en) | A kind of split type countercurrent chromatography separation column | |
| CN208888201U (en) | A kind of liquid-phase chromatographic column | |
| CN208125684U (en) | A kind of liquid chromatograph | |
| CN104749296A (en) | Liquid chromatographic column for analysis | |
| CN102895801A (en) | Assembly for axially and dynamically compressing chromatography column | |
| US9267927B2 (en) | Robust and low backpressure on-column tunneled frit for nano-UPLC-MS applications |
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: 20110105 Termination date: 20180423 |