CN204855464U - Post position valve chromatographic device - Google Patents
Post position valve chromatographic device Download PDFInfo
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- CN204855464U CN204855464U CN201520620215.3U CN201520620215U CN204855464U CN 204855464 U CN204855464 U CN 204855464U CN 201520620215 U CN201520620215 U CN 201520620215U CN 204855464 U CN204855464 U CN 204855464U
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Abstract
(B, ) the utility model discloses a post position valve chromatographic device, its center pillar position valve are when an operating condition, and the chromatographic column is not passed through to flowing phase, by a post position valve hole and post position valve three holes of system's pump through admission valve, post position valve, directly get into the detector and detect, (b) (b) whole chromatographic device that discharges at last, (b) (b) thus realization bypass's function, post position valve is when the 2nd operating condition, and flowing phase is through the admission valve, gets into post position valve by a post position valve hole, passes through post position four holes on the valve again, by the filler of forward in the chromatographic column, passes through post position two holes on the valve, post position three holes on the valve again, and get into that the detector detects or the balance is walked to the elution, (b) (b) whole chromatographic device (b) (b) that discharges at last, simultaneously can realize that the forward washes the chromatographic column, post position valve is when the 3rd operating condition, and flowing phase is through the admission valve, gets into post position valve by a post position valve hole, passes through post position two holes on the valve again, by reverse filler in the chromatographic column, passes through post position four holes on the valve, post position three holes on the valve again, and get into that the detector detects or the balance is walked to the elution, (b) (b) whole chromatographic device (b) (b) that discharges at last, simultaneously can realize the counterflush chromatographic column. (B, )
Description
Technical field
the utility model relates to a kind of post position valve layer analysis apparatus.
Background technology
liquid chromatography instrument utilizes the difference of the affinity such as the partition factor of various materials in two-phase, adsorptive power to be separated to be separated.The then instrument of Analysis and Identification or preparation.When utilizing liquid chromatography instrument sample being analyzed or prepare, design path is needed to enable to realize following functions: 1.ByPass is not namely when needing mobile phase to enter detecting device, when maybe needing to rinse detecting device, mobile phase by-passing directly enters detecting device detection or wash-out walks balance, finally discharges whole chromatographic apparatus; 2. systems pumps promotes the filler of mobile phase in sampling valve and chromatographic column (namely flow direction is from the forward end of chromatographic column to end of oppisite phase by the forward of chromatographic column, described forward end and backward end are the relative two ends of chromatographic column) enter detecting device detect wash-out walk balance, finally discharge whole chromatographic apparatus; Realize forward simultaneously and rinse chromatographic column; 3. systems pumps promotes the filler of mobile phase in sampling valve and chromatographic column and enters detecting device detection by reverse (namely flow direction is from the backward end of chromatographic column to positive terminal) of chromatographic column, finally discharges whole chromatographic apparatus; Realize counterflush chromatographic column simultaneously.And in prior art, then need to change different valves to realize above-mentioned difference in functionality, it is very inconvenient to operate.
Utility model content
in order to solve the problem, the purpose of this utility model is to provide a kind of post position valve layer analysis apparatus, can not change parts, only realize above-mentioned difference in functionality by the state switching of valve.
in order to reach above object, the technical solution adopted in the utility model is: a kind of post position valve layer analysis apparatus, and it comprises and has inlet opening and the sampling valve of fluid hole, the systems pumps be connected with the inlet opening of sampling valve, the quantitative loop be connected with sampling valve, the post position valve be connected with the fluid hole of sampling valve, the chromatographic column be connected with post position valve, the detecting device that is connected with post position valve;
post position valve comprises post position stator valve, rotate with post position stator valve the post position valve rotor be connected, post position stator valve to have centered by the pivot center of post position valve rotor angularly and valve one hole, post position distributed successively equidistantly, valve two hole, post position, valve three hole, post position, valve four hole, post position, valve two hole, post position is connected with the two ends of chromatographic column respectively with valve four hole, post position, valve one hole, post position is connected with the fluid hole of sampling valve, valve three hole, post position is connected with detecting device, post position valve rotor has post position valve one groove and two post position valve two grooves
post position valve has at least three duties, and when it is in the first duty, valve one hole, post position is connected by post position valve one groove with valve three hole, post position; When post position valve is in the second duty, valve one hole, post position is connected by two post position valve two grooves with valve four hole, post position, and valve two hole, post position is connected by another in two post position valve two grooves with valve three hole, post position; When post position valve is in the 3rd duty, valve one hole, post position is connected by two post position valve two grooves with valve two hole, post position, and valve three hole, post position is connected by another in two post position valve two grooves with valve four hole, post position.
further, if the distance between the pivot center of valve one hole, post position and post position valve rotor is R, the length direction of post position valve one groove is vertical and crossing with the pivot center of post position valve rotor, and the distance between one end of post position valve one groove and the pivot center of its other end and post position valve rotor is R.
further, post position valve one groove is linear.
further, two post position valve two grooves are arranged on the both sides of post position valve one groove respectively symmetrically, and the distance between one end of each post position valve two groove and the pivot center of its other end and post position valve rotor is R.
further, post position valve two groove is linear.
further, valve four hole, post position is connected with the forward end of chromatographic column, and valve two hole, post position is connected with the backward end of chromatographic column.
further, sampling valve comprises sampling valve stator, to rotate the sampling valve rotor be connected with sampling valve stator, sampling valve stator has sampling valve one hole be connected with sample pump, sampling valve two hole be connected with waste liquid output magazine and sampling valve three hole, sampling valve four hole be connected with one end of quantitative loop, sampling valve five hole be connected with post position valve, sampling valve six hole be connected with the other end of quantitative loop, the sampling valve seven apertures in the human head be connected with systems pumps, the axial line of sampling valve seven apertures in the human head and the pivot center of sampling valve rotor coincide, sampling valve one hole, sampling valve two hole, sampling valve three hole, sampling valve four hole, sampling valve five hole, centered by the axial line of sampling valve six hole and sampling valve seven apertures in the human head angularly and distribute successively equidistantly, sampling valve seven apertures in the human head is above-mentioned inlet opening, sampling valve five hole is above-mentioned fluid hole, sampling valve rotor have sampling valve one groove, sampling valve two groove, sampling valve three groove and blind hole,
sampling valve has sample introduction duty, sampling duty and the direct loading duty of sample pump, when sampling valve is in sample introduction duty, sampling valve five hole is connected by sampling valve one groove with sampling valve six hole, sampling valve four hole is connected by sampling valve two groove with sampling valve seven apertures in the human head, sampling valve one hole is connected by sampling valve three groove with sampling valve three hole, and blind hole is connected with sampling valve two hole; When sampling valve is when sampling duty, sampling valve one hole is connected by sampling valve one groove with sampling valve six hole, sampling valve five hole is connected by sampling valve two groove with sampling valve seven apertures in the human head, sampling valve two hole is connected by sampling valve three groove with sampling valve four hole, and blind hole is connected with sampling valve three hole; When sampling valve is in the direct loading duty of direct sample pump, sampling valve three hole is connected by sampling valve one groove with sampling valve four hole, sampling valve two hole is connected by sampling valve two groove with sampling valve seven apertures in the human head, sampling valve one hole is connected by sampling valve three groove with sampling valve five hole, and blind hole is connected with sampling valve six hole.
further, if the distance between sampling valve one hole and sampling valve two hole is m, distance between sampling valve one hole and sampling valve seven apertures in the human head is n, one end of sampling valve one groove is m to the distance of its other end, and the distance between one end of sampling valve one groove and the pivot center of its other end and sampling valve rotor is n.
further, one end of sampling valve two groove is positioned at the pivot center place of sampling valve rotor, and one end of sampling valve two groove is n to the distance between its other end, and the distance between the other end of sampling valve two groove and the other end of sampling valve one groove is m.
further, distance between one end of sampling valve three groove and the pivot center of its other end and sampling valve rotor is n, distance between one end of sampling valve three groove and one end of sampling valve one groove is m, and the distance between the other end of sampling valve three groove and the other end of sampling valve two groove is also m.
owing to adopting technique scheme, post position valve in the valve layer analysis apparatus of the utility model post position is when the first duty, mobile phase is without chromatographic column, by systems pumps through valve one hole, post position of sampling valve, post position valve and valve three hole, post position, directly enter detecting device to detect, finally discharge whole chromatographic apparatus, thus realize the function of Bypass; Post position valve is when the second duty, mobile phase under the promotion of systems pumps through sampling valve, post position valve is entered by valve one hole, post position, again through valve four hole, post position, by the filler of forward in chromatographic column, again through valve two hole, post position, valve three hole, post position, enter detecting device detect or wash-out walk balance, finally discharge whole chromatographic apparatus; Forward can be realized simultaneously and rinse chromatographic column; Post position valve is when the 3rd duty, mobile phase under the promotion of systems pumps through sampling valve, post position valve is entered by valve one hole, post position, again through valve two hole, post position, by reverses through the filler in chromatographic column, again through valve four hole, post position, valve three hole, post position, enter detecting device detect or wash-out walk balance, finally discharge whole chromatographic apparatus; Counterflush chromatographic column can be realized simultaneously.
a kind of post position of the utility model valve layer analysis apparatus switches the duty of post position valve by the rotation of rotor, the different operating state of post position valve switches can, by the switching of software intelligence, make a valve achieve three kinds of difference in functionalitys, and functional.A kind of post position of the utility model valve layer analysis apparatus compares prior art, no matter in the filler loading through chromatographic column, or chromatographic column cleaning aspect, all very convenient, forward loading and reverse cleaning can also be realized simultaneously, or oppositely loading and forward cleaning, or both forward and reverse directions loading, or both forward and reverse directions cleaning, chromatographic column need not be changed back and forth when both forward and reverse directions sample introduction or both forward and reverse directions cleaning, be convenient to the cleaning of chromatographic column, cleaning performance is better, and it is more convenient to operate.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the first duty, and sampling valve is in sample introduction duty;
accompanying drawing 2 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the first duty, and sampling valve is in sampling duty;
accompanying drawing 3 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the first duty, and sampling valve is in the direct loading duty of sample pump;
accompanying drawing 4 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the second duty, and sampling valve is in sample introduction duty;
accompanying drawing 5 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the second duty, and sampling valve is in sampling duty;
accompanying drawing 6 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the second duty, and sampling valve is in the direct loading duty of sample pump;
accompanying drawing 7 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the 3rd duty, and sampling valve is in sample introduction duty;
accompanying drawing 8 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the 3rd duty, and sampling valve is in sampling duty;
accompanying drawing 9 is the structural representation of a kind of post position of the utility model valve layer analysis apparatus, and its center pillar position valve is in the 3rd duty, and sampling valve is in the direct loading duty of straight sample pump;
accompanying drawing 10 is the structural representation of the stator of valve layer analysis apparatus center pillar position, a kind of post position of the utility model valve;
accompanying drawing 11 is the structural representation of another angle of the stator of valve layer analysis apparatus center pillar position, a kind of post position of the utility model valve;
accompanying drawing 12 is the structural representation of the rotor of valve layer analysis apparatus center pillar position, a kind of post position of the utility model valve.
number in the figure is:
10, systems pumps;
20, sampling valve; 21, sampling valve one hole; 22, sampling valve two hole; 23, sampling valve three hole; 24, sampling valve four hole; 25, sampling valve five hole; 26, sampling valve six hole; 27, sampling valve seven apertures in the human head; 281, sampling valve one groove; 282, sampling valve two groove; 29, sampling valve three groove;
30, quantitative loop;
40, post position valve; 401, post position stator valve; 402, post position valve rotor; 41, post position valve one hole; 42, post position valve two hole; 43, post position valve three hole; 44, post position valve four hole; 45, post position valve five hole; 46, post position valve six hole; 47, post position valve one groove; 48, post position valve two groove;
50, chromatographic column;
60, detecting device.
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
as can be seen from the structural representation of accompanying drawing 1 to accompanying drawing 12, present embodiments provide a kind of post position valve layer analysis apparatus, it comprises and has inlet opening and the sampling valve 20 of fluid hole, the systems pumps 10 be connected with the inlet opening of sampling valve 20, the quantitative loop 30 be connected with sampling valve 20, the post position valve 40 be connected with the fluid hole of sampling valve 20, the chromatographic column 50 be connected with post position valve 40, the detecting device 60 that is connected with post position valve 40.
post position valve 40 comprises post position stator valve 401, to rotate the post position valve rotor 402 be connected with post position stator valve 401, post position stator valve 401 to have centered by the pivot center of post position valve rotor 402 angularly and valve one hole, post position 41 distributed successively equidistantly, valve two hole, post position 42, valve three hole, post position 43, valve four hole, post position 44, valve two hole, post position 42 is connected with the two ends of chromatographic column 50 respectively with valve four hole, post position 44, valve one hole, post position 41 is connected with the fluid hole of sampling valve 20, valve three hole, post position 43 is connected with detecting device 60, post position valve rotor 402 has post position valve one groove 45 and two post position valve two grooves 46.
valve one hole, post position 41, valve two hole, post position 42, valve three hole, post position 43 and valve four hole, post position 44 are through hole.
if the distance between valve one hole, post position 41 and the pivot center of post position valve rotor 402 is R, the length direction of post position valve one groove 45 is vertical and crossing with the pivot center of post position valve rotor 402, and the distance between one end of post position valve one groove 45 and the pivot center of its other end and post position valve rotor 402 is R.Preferably, post position valve one groove 45 is linear.
two post position valve two grooves 46 are arranged on the both sides of post position valve one groove 45 respectively symmetrically, and the distance between one end of each post position valve two groove 46 and the pivot center of its other end and post position valve rotor 402 is R.Preferably, two post position valve two grooves 46 are linear.
in the present embodiment, valve four hole, post position 44 is connected with the forward end of chromatographic column 50, and valve two hole, post position 42 is connected with the backward end of chromatographic column 50.
post position valve 40 has at least three duties: when it is in the first duty, valve one hole, post position 41 is connected by post position valve one groove 45 with valve three hole, post position 43, in this case, mobile phase is without chromatographic column 50, by systems pumps 10 through valve one hole, post position 41 of sampling valve 20, post position valve 40 and valve three hole, post position 43, directly enter detecting device 60 to detect, finally discharge whole chromatographic apparatus, thus realize the function of Bypass;
when post position valve 40 is in the second duty, valve one hole, post position 41 is connected by two post position valve two grooves 46 with valve four hole, post position 44, valve two hole, post position 42 is connected by another in two post position valve two grooves 46 with valve three hole, post position 43, in this case, mobile phase under the promotion of systems pumps 10 through sampling valve 20, post position valve 40 is entered by valve one hole, post position 41, again through valve four hole, post position 44, by the filler of forward through chromatographic column 50 li, again through valve two hole, post position 42, valve three hole, post position 43, enter detecting device 60 to detect, finally discharge whole chromatographic apparatus, forward can be realized simultaneously and rinse chromatographic column,
when post position valve 40 is in the 3rd duty, valve one hole, post position 41 is connected by two post position valve two grooves 46 with valve two hole, post position 42, valve three hole, post position 43 is connected by another in two post position valve two grooves 46 with valve four hole, post position 44, in this case, mobile phase under the promotion of systems pumps 10 through sampling valve 20, post position valve 40 is entered by valve one hole, post position 41, again through valve two hole, post position 42, by the filler reverses through chromatographic column 50 li, again through valve four hole, post position 44, valve three hole, post position 43, enter detecting device 60 to detect, finally discharge whole chromatographic apparatus, counterflush chromatographic column can be realized simultaneously.
sampling valve in this kind of post position valve layer analysis apparatus can be of the prior art any one, as accompanying drawing 1 to accompanying drawing 9 the present embodiment provides a kind of sampling valve 40, it comprises sampling valve stator (attached not shown in FIG.), to rotate the sampling valve rotor (attached not shown in FIG.) be connected with sampling valve stator, sampling valve stator has sampling valve one hole 21 be connected with sample pump (attached not shown in FIG.), sampling valve two hole 22 be connected with waste liquid output magazine and sampling valve three hole 23, sampling valve four hole 24 be connected with one end of quantitative loop 30, sampling valve five hole 25 be connected with post position valve 40, sampling valve six hole 26 be connected with the other end of quantitative loop 30, the sampling valve seven apertures in the human head 27 be connected with systems pumps 10, the axial line of sampling valve seven apertures in the human head 27 and the pivot center of sampling valve rotor coincide, sampling valve one hole 21, sampling valve two hole 22, sampling valve three hole 23, sampling valve four hole 24, sampling valve five hole 25, centered by the axial line of sampling valve six hole 26 and sampling valve seven apertures in the human head 27 angularly and distribute successively equidistantly, sampling valve seven apertures in the human head 27 is inlet opening, and sampling valve five hole 25 is fluid hole, sampling valve rotor have sampling valve one groove 281, sampling valve two groove 282, sampling valve three groove 29 and blind hole (attached not shown in FIG.).
if the distance between sampling valve one hole 21 and sampling valve two hole 22 is m, distance between sampling valve one hole 21 and sampling valve seven apertures in the human head 27 is n, one end of sampling valve one groove 281 is m to the distance of its other end, and the distance between one end of sampling valve one groove 281 and the pivot center of its other end and sampling valve rotor is n.One end of sampling valve two groove 282 is positioned at the pivot center place of sampling valve rotor, and one end of sampling valve two groove 282 is n to the distance between its other end, and the distance between the other end of sampling valve two groove 282 and the other end of sampling valve one groove 281 is m.Distance between one end of sampling valve three groove 29 and the pivot center of its other end and sampling valve rotor is n, distance between one end of sampling valve three groove 29 and one end of sampling valve one groove 281 is m, and the distance between the other end of sampling valve three groove 29 and the other end of sampling valve two groove 282 is also m
sampling valve 20 in the present embodiment has sample introduction duty, sampling duty and the direct loading duty of sample pump: when sampling valve 20 is in sample introduction duty, sampling valve five hole 25 is connected by sampling valve one groove 281 with sampling valve six hole 26, sampling valve four hole 24 is connected by sampling valve two groove 282 with sampling valve seven apertures in the human head 27, sampling valve one hole 21 is connected by sampling valve three groove 29 with sampling valve three hole 23, blind hole is connected with sampling valve two hole 22, in this case, systems pumps 10 is communicated with quantitative loop 30, can the sample preserved in quantitative loop 30 be brought in post position valve 40, and the design of this valve ensures that sample can realize non-full ring sample introduction when sampling valve duty, sample pump connects waste liquid output channel, can carry out sample pump flushing at any time,
when sampling valve 20 is when sampling duty, sampling valve one hole 21 is connected by sampling valve one groove 281 with sampling valve six hole 26, sampling valve five hole 25 is connected by sampling valve two groove 282 with sampling valve seven apertures in the human head 27, sampling valve two hole 22 is connected by sampling valve three groove 29 with sampling valve four hole 24, blind hole is connected with sampling valve three hole 23, in this case, sample enters quantitative loop 30 by sampling valve one hole 21 by sampling valve six hole 26, unnecessary sample or waste liquid are discharged by sampling valve two hole 22 by sampling valve four hole 24, systems pumps 10 directly connects post position valve 40 by sampling valve seven apertures in the human head 27 by sampling valve five hole 25,
when sampling valve 20 is in the direct loading duty of sample pump, sampling valve three hole 23 is connected by sampling valve one groove 281 with sampling valve four hole 24, sampling valve two hole 22 is connected by sampling valve two groove 282 with sampling valve seven apertures in the human head 27, sampling valve one hole 21 is connected by sampling valve three groove 29 with sampling valve five hole 25, blind hole is connected with sampling valve six hole 26, in this case, sample pump directly connects post position valve 40, sample is directly injected 40 li, post position valve by sample pump mutually, through post position valve 40, chromatographic column 50, and detect to detecting device, finally discharge whole chromatographic apparatus; Realize the function by the direct loading of sample pump; Quantitative loop 30 one end connects waste liquid output channel by sampling valve three hole 23, and the other end is closed, and systems pumps 10 was connected sampling valve two hole 22 and connect waste liquid output channel, now if necessary, also can carry out systems pumps 10 and rinse; Under this state, sample can not loss under syphonic effect again.
a kind of post position of the utility model valve layer analysis apparatus switches the duty of post position valve by the rotation of rotor, the different operating state of post position valve switches can, by the switching of software intelligence, make a valve achieve three kinds of difference in functionalitys, and functional.A kind of post position of the utility model valve layer analysis apparatus compares prior art, no matter at sample in the filler loading of chromatographic column, or chromatographic column cleaning aspect, all very convenient, forward loading and reverse cleaning can also be realized simultaneously, or oppositely loading and forward cleaning, or both forward and reverse directions loading, or both forward and reverse directions cleaning, chromatographic column need not be changed back and forth when positive dirction sample introduction or both forward and reverse directions cleaning, be convenient to the cleaning of chromatographic column, cleaning performance is better, and it is more convenient to operate.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. a post position valve layer analysis apparatus, is characterized in that: it comprises and has inlet opening and the sampling valve (20) of fluid hole, the systems pumps (10) be connected with the inlet opening of described sampling valve (20), the quantitative loop (30) be connected with described sampling valve (20), post position valve (40) be connected with the fluid hole of sampling valve (20), the chromatographic column (50) be connected with described post position valve (40), the detecting device (60) that is connected with post position valve (40);
Described post position valve (40) comprises post position stator valve (401), to rotate post position valve rotor (402) be connected with described post position stator valve (401), described post position stator valve (401) to have centered by the pivot center of post position valve rotor (402) angularly and valve one hole, the post position (41) distributed successively equidistantly, valve two hole, post position (42), valve three hole, post position (43), valve four hole, post position (44), valve two hole, post position (42) is connected with the two ends of described chromatographic column (50) respectively with valve four hole, post position (44), valve one hole, post position (41) is connected with the fluid hole of described sampling valve (20), valve three hole, post position (43) is connected with described detecting device (60), described post position valve rotor (402) has post position valve one groove (45) and two post positions valve two groove (46),
Described post position valve (40) has at least three duties, and when it is in the first duty, described valve one hole, post position (41) is connected by post position valve one groove (45) with valve three hole, post position (43); When described post position valve (40) is in the second duty, described valve one hole, post position (41) is connected by two post positions valve two groove (46) with valve four hole, post position (44), and described valve two hole, post position (42) is connected by another in two post positions valve two groove (46) with valve three hole, post position (43); When described post position valve (40) is in the 3rd duty, described valve one hole, post position (41) is connected by two post positions valve two groove (46) with valve two hole, post position (42), and described valve three hole, post position (43) is connected by another in two post positions valve two groove (46) with valve four hole, post position (44).
2. a kind of post position according to claim 1 valve layer analysis apparatus, it is characterized in that: set distance between described valve one hole, post position (41) and the pivot center of post position valve rotor (402) as R, the length direction of described post position valve one groove (45) is vertical and crossing with the pivot center of post position valve rotor (402), and the distance between the pivot center of one end of post position valve one groove (45) and its other end and post position valve rotor (402) is R.
3. a kind of post position according to claim 1 and 2 valve layer analysis apparatus, is characterized in that: described post position valve one groove (45) is linear.
4. a kind of post position according to claim 2 valve layer analysis apparatus, it is characterized in that: two described post positions valve two groove (46) are arranged on the both sides of post position valve one groove (45) respectively symmetrically, the one end of post position valve two groove (46) described in each and the distance between the pivot center of its other end and post position valve rotor (402) are R.
5. a kind of post position valve layer analysis apparatus according to claim 1 or 4, is characterized in that: described post position valve two groove (46) is linear.
6. a kind of post position according to claim 1 valve layer analysis apparatus, it is characterized in that: described valve four hole, post position (44) is connected with the forward end of chromatographic column (50), described valve two hole, post position (42) is connected with the backward end of chromatographic column (50).
7. a kind of post position according to claim 1 valve layer analysis apparatus, it is characterized in that: described sampling valve (20) comprises sampling valve stator, to rotate the sampling valve rotor be connected with described sampling valve stator, described sampling valve stator has sampling valve one hole (21) be connected with sample pump, sampling valve two hole (22) be connected with waste liquid output magazine and sampling valve three hole (23), sampling valve four hole (24) be connected with one end of described quantitative loop (30), sampling valve five hole (25) be connected with described post position valve (40), sampling valve six hole (26) be connected with the other end of described quantitative loop (30), the sampling valve seven apertures in the human head (27) be connected with systems pumps (10), the described axial line of sampling valve seven apertures in the human head (27) and the pivot center of sampling valve rotor coincide, described sampling valve one hole (21), sampling valve two hole (22), sampling valve three hole (23), sampling valve four hole (24), sampling valve five hole (25), centered by the axial line of sampling valve six hole (26) and sampling valve seven apertures in the human head (27) angularly and distribute successively equidistantly, sampling valve seven apertures in the human head (27) is described inlet opening, sampling valve five hole (25) is described fluid hole, described sampling valve rotor have sampling valve one groove (281), sampling valve two groove (282), sampling valve three groove (29) and blind hole,
Described sampling valve (20) has sample introduction duty, sampling duty and the direct loading duty of sample pump, when it is in sample introduction duty, described sampling valve five hole (25) is connected by sampling valve one groove (281) with sampling valve six hole (26), described sampling valve four hole (24) is connected by sampling valve two groove (282) with sampling valve seven apertures in the human head (27), described sampling valve one hole (21) is connected by sampling valve three groove (29) with sampling valve three hole (23), and described blind hole is connected with sampling valve two hole (22); When sampling valve (20) is when sampling duty, described sampling valve one hole (21) is connected by sampling valve one groove (281) with sampling valve six hole (26), described sampling valve five hole (25) is connected by sampling valve two groove (282) with sampling valve seven apertures in the human head (27), described sampling valve two hole (22) is connected by sampling valve three groove (29) with sampling valve four hole (24), and described blind hole is connected with sampling valve three hole (23); When sampling valve (20) is in the direct loading duty of sample pump, described sampling valve three hole (23) is connected by sampling valve one groove (281) with sampling valve four hole (24), described sampling valve two hole (22) is connected by sampling valve two groove (282) with sampling valve seven apertures in the human head (27), described sampling valve one hole (21) is connected by sampling valve three groove (29) with sampling valve five hole (25), and described blind hole is connected with sampling valve six hole (26).
8. a kind of post position according to claim 7 valve layer analysis apparatus, it is characterized in that: set distance between described sampling valve one hole (21) and sampling valve two hole (22) as m, m > 0, distance between described sampling valve one hole (21) and sample introduction seven valve opening (27) is n, n > 0, one end of described sampling valve one groove (281) is m to the distance of its other end, and the distance between described one end of sampling valve one groove (281) and the pivot center of its other end and sampling valve rotor is n.
9. a kind of post position according to claim 8 valve layer analysis apparatus, it is characterized in that: one end of described sampling valve two groove (282) is positioned at the pivot center place of sampling valve rotor, one end of sampling valve two groove (282) is n to the distance between its other end, and the distance between the other end of sampling valve two groove (282) and the other end of sampling valve one groove (281) is m.
10. a kind of post position according to claim 9 valve layer analysis apparatus, it is characterized in that: the distance between described one end of sampling valve three groove (29) and the pivot center of its other end and sampling valve rotor is n, distance between one end of sampling valve three groove (29) and one end of sampling valve one groove (281) is m, and the distance between the other end of sampling valve three groove (29) and the other end of sampling valve two groove (282) is also m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620215.3U CN204855464U (en) | 2015-08-18 | 2015-08-18 | Post position valve chromatographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620215.3U CN204855464U (en) | 2015-08-18 | 2015-08-18 | Post position valve chromatographic device |
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| Publication Number | Publication Date |
|---|---|
| CN204855464U true CN204855464U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520620215.3U Active CN204855464U (en) | 2015-08-18 | 2015-08-18 | Post position valve chromatographic device |
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| CN (1) | CN204855464U (en) |
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2015
- 2015-08-18 CN CN201520620215.3U patent/CN204855464U/en active Active
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