CN208406172U - A kind of chromatographic column pressurizing device - Google Patents

Abstract

The utility model discloses a kind of chromatographic column pressurizing devices, are related to technical field of chromatography, and sleeve inner is hollow and forms cavity, and diversion trench and spill cavity are set in footstalk, and spill cavity end lateral wall sets overflow hole；Sliding block is set in spill cavity, is connected to spill cavity end by elastic component, overflow pipe is arranged inside sliding block, the inner cavity of sleeve is connected to by overflow pipe with overflow hole；Driving piston is equipped with the deflector hole being connected to by diversion trench with barrel bore, and overflow hole is connected to hydraulic oil container by return pipe.The utility model drive rod is constituted by footstalk and by sleeve that footstalk bottom end set is connected to its outside, when booster pump discharge pressure is excessively high, hydraulic oil enters barrel bore through diversion trench from deflector hole and sliding block compression elastic piece is pushed to slide to spill cavity end, it is connected to barrel bore with overflow hole by overflow pipe, hydraulic oil is back to hydraulic oil container by return pipe and realizes release, it avoids hypertonia from leading to solutes accumulation disorder, and then leads to the failure of an experiment.

Description

A kind of chromatographic column pressurizing device

Technical field

The utility model relates to technical field of chromatography, and in particular to a kind of pressurizing device for chromatographic column.

Background technique

Chromatography is also known as chromatography or chromatography, is a kind of physicochemical analysis method, it utilizes different samples and stationary phase The difference of active force between mobile phase, when two-phase relatively moves, each solute two it is alternate repeatedly balanced, make each Solute, which reaches, to be separated from each other.Separation is the core of chromatography, and therefore, the chromatographic column for undertaking centrifugation is the heart of entire chromatogram arrangement Dirty, column effect, selectivity and the analysis speed of chromatographic column directly affect chromatography effect.

When carrying out chemical analysis using chromatographic column, need to apply pressure appropriate to chromatographic column, allow substance to be analyzed along Flow direction is diffused in chromatographic column.Currently, the pressurizing device of chromatographic column does not have the function of overvoltage protection, when pressurizing device is applied When the hypertonia added, causes to spread disorder, analysans matter can not be effectively separated, and then lead to the failure of an experiment.

Utility model content

The utility model provides a kind of chromatographic column and adds precisely in order to avoid above-mentioned existing deficiencies in the technology Pressure device.

The present invention adopts the following technical scheme that a kind of chromatographic column pressurizing device in order to solve the technical problem, driving cylinder be set to from It above dynamic cylinder, and is coaxially disposed with the driven cylinder, piston and relay piston is driven to be respectively cooperating in the driving cylinder and described It is connected in driven cylinder and by drive rod, chromatographic column is connected to the driven cylinder bottom vertically, passes through liquid at the top of the driving cylinder Pressure pipe is connected to hydraulic oil container, and booster pump is set between the driving cylinder and the hydraulic oil container, is set on the hydraulic tube, is given up Liquid bucket is set to immediately below the chromatographic column, and the drive rod is socketed on outside the footstalk from footstalk and with the footstalk bottom end The sleeve in portion is constituted, and the sleeve inner is hollow and forms cavity, and it is entire described that axial setting perforation is parallel in the footstalk The diversion trench of footstalk and the spill cavity that Open Side Down, spill cavity end lateral wall set overflow hole；Sliding block is set to the overflow It is intracavitary, the spill cavity end is connected to by elastic component, and form sliding pair, setting inside the sliding block with the spill cavity Overflow pipe；When the elastic component is compressed to limiting condition by the sliding block, the inner cavity of the sleeve passes through the overflow pipe and institute State overflow hole connection；The driving piston is equipped with the deflector hole being connected to by the diversion trench with the barrel bore, described Overflow hole is connected to the hydraulic oil container by return pipe.

Further, the vertical section of the overflow pipe is L-shaped.

Further, the elastic component is equal diameter helical spring.

Further, the return pipe is rubber hose.

The utility model provides a kind of chromatographic column pressurizing device, has the advantages that

1, drive rod is constituted by footstalk and by sleeve that footstalk bottom end set is connected to its outside, when booster pump discharge pressure is excessively high When, hydraulic oil enters barrel bore through diversion trench from deflector hole and sliding block compression elastic piece is pushed to slide to spill cavity end, makes Barrel bore is connected to by overflow pipe with overflow hole, and hydraulic oil is back to hydraulic oil container by return pipe and realizes release, avoids pressure It is excessively high to lead to solutes accumulation disorder, and then lead to the failure of an experiment.

2, pressure relief is automatically turned on or is closed according to the pressure that booster pump applies, and can pass through adjusting as the case may be The pressure threshold of the elastic force control release of elastic component, it is applied widely；

3, structure is simple, easy to use, and practicability is good.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram that the utility model drives piston and drive rod；

Fig. 3 is the structural schematic diagram that the utility model driving piston and drive rod reach pressure limit state.

In figure:

100, cylinder, 110, driving piston, 111, deflector hole, 200, booster pump, 210, hydraulic oil container, 220, reflux are driven Pipe, 300, drive rod, 310, footstalk, 311, diversion trench, 312, overflow hole, 320, sleeve, 330, sliding block, 331, overflow pipe, 340, elastic component, 400, driven cylinder, 410, relay piston, 500, chromatographic column, 600, waste liquid barrel.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described implementation Example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field Those of ordinary skill's every other embodiment obtained without creative efforts, belongs to the utility model The range of protection.

As shown in FIG. 1 to 3, structural relation are as follows: driving cylinder 100 is set to 400 top of driven cylinder, and with driven cylinder 400 Coaxial arrangement drives piston 110 and relay piston 410 to be respectively cooperating in driving cylinder 100 and driven cylinder 400 and passing through drive rod 300 connections, chromatographic column 500 are connected to driven 400 bottom of cylinder vertically, drive at the top of cylinder 100 through hydraulic tube and hydraulic oil container 210 Connection, booster pump 200 are set between driving cylinder 100 and hydraulic oil container 210, are set on hydraulic tube, and waste liquid barrel 600 is set to chromatographic column Immediately below 500, drive rod 300 is socketed on 320 structure of sleeve outside footstalk 310 from footstalk 310 and with 310 bottom end of footstalk At 320 inner hollow of sleeve simultaneously forms cavity, and the diversion trench that axial setting penetrates through entire footstalk 310 is parallel in footstalk 310 311 set overflow hole 312 with the spill cavity that Open Side Down, spill cavity end lateral wall；Sliding block 330 is set in spill cavity, passes through bullet Property part 340 be connected to spill cavity end, and form sliding pair with spill cavity, overflow pipe 331 be set inside sliding block 330；Sliding block 330 When elastic component 340 is compressed to limiting condition, the inner cavity of sleeve 320 is connected to by overflow pipe 331 with overflow hole 312；Driving is lived Plug 110 is equipped with the deflector hole 111 being connected to by diversion trench 311 with 320 inner cavity of sleeve, and overflow hole 312 is connected by return pipe 220 Pass to hydraulic oil container 210.

Preferably, the vertical section of overflow pipe 331 is L-shaped.

Preferably, elastic component 340 is equal diameter helical spring.

Preferably, return pipe 220 is rubber hose.

When specifically used, booster pump 200, which injects after being pressurized the hydraulic oil in hydraulic oil container 210 through hydraulic tube, drives cylinder In 100, to force driving piston 110 to move down along driving cylinder 100, to drive drive rod 300 to move down, with drive rod The relay piston 410 of 300 connections follows drive rod 300 to move down along driven cylinder 400.Filling solvent exists in driven cylinder 400 Enter in chromatographic column 500 under pressure effect and is diffused.

After section hydraulic oil enters driving cylinder 100, by the deflector hole 111 that is arranged on driving piston 110 through being set on footstalk 310 The diversion trench 311 set flows into 320 inner cavity of sleeve.When 200 discharge pressure of booster pump is excessively high, effect of the sliding block 330 in hydraulic oil The pressure of lower customer service elastic component 340, is moved inside spill cavity to spill cavity end direction, until overflow pipe 331 is by sleeve 320 Inner cavity be connected to overflow hole 312, hydraulic oil flows into return pipe 220 by overflow hole 312 through overflow pipe 331, and finally flows back To hydraulic oil container 210, release is realized.

In actual use, the regulation of release critical pressure can be realized by the elastic force of adjusting elastic component 340.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (4)

1. a kind of chromatographic column pressurizing device, driving cylinder (100) is set to above driven cylinder (400), and same with the driven cylinder (400) Axis setting, drives piston (110) and relay piston (410) to be respectively cooperating in the driving cylinder (100) and the driven cylinder (400) Interior and connected by drive rod (300), chromatographic column (500) is connected to driven cylinder (400) bottom, the driving cylinder vertically (100) top is connected to by hydraulic tube with hydraulic oil container (210), and booster pump (200) is set to the driving cylinder (100) and the liquid It between pressure oil case (210), is set on the hydraulic tube, waste liquid barrel (600) is set to immediately below the chromatographic column (500), feature Be: the drive rod (300) is socketed on the footstalk (310) outside from footstalk (310) and with the footstalk (310) bottom end The sleeve (320) in portion is constituted, and sleeve (320) inner hollow simultaneously forms cavity, and axial set is parallel in the footstalk (310) The diversion trench (311) for penetrating through the entire footstalk (310) and the spill cavity that Open Side Down are set, spill cavity end lateral wall is set Overflow hole (312)；Sliding block (330) is set in the spill cavity, is connected to the spill cavity end by elastic component (340), and Sliding pair is formed with the spill cavity, overflow pipe (331) are set inside the sliding block (330)；The sliding block (330) is by the bullet Property part (340) when being compressed to limiting condition, the inner cavity of the sleeve (320) passes through the overflow pipe (331) and the overflow hole (312) it is connected to；The driving piston (110), which is equipped with, to be connected to by the diversion trench (311) with the sleeve (320) inner cavity Deflector hole (111), the overflow hole (312) are connected to the hydraulic oil container (210) by return pipe (220).

2. a kind of chromatographic column pressurizing device according to claim 1, it is characterised in that: the vertical profile of the overflow pipe (331) Face is L-shaped.

3. a kind of chromatographic column pressurizing device according to claim 1, it is characterised in that: the elastic component (340) is equal diameter Helical spring.

4. a kind of chromatographic column pressurizing device according to claim 1, it is characterised in that: the return pipe (220) is rubber Hose.