CN104265952B - A kind of eight lead to valve and a kind of tomographic system leading to valve based on eight - Google Patents
A kind of eight lead to valve and a kind of tomographic system leading to valve based on eight Download PDFInfo
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- CN104265952B CN104265952B CN201410577541.0A CN201410577541A CN104265952B CN 104265952 B CN104265952 B CN 104265952B CN 201410577541 A CN201410577541 A CN 201410577541A CN 104265952 B CN104265952 B CN 104265952B
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- loading
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
- G01N2030/201—Injection using a sampling valve multiport valves, i.e. having more than two ports
Abstract
The present invention a kind of eight is led to valve and a kind of relates to a kind of flow circuit control valve and a kind of tomographic system with multiple loading pattern or liquid chromatographic system based on eight tomographic systems leading to valve.Its purpose is to provide a kind of easy and simple to handle, the eight of diverse in function lead to valve and a kind of tomographic system leading to valve based on eight.One eight of the present invention is led to valve and is included spool and valve body, wherein offers eight interfaces on valve body, offers four passages in spool, and spool is positioned at valve body and has four stations.Tomographic system of the present invention includes systems pumps, loading valve, loading ring, chromatographic column, detector and sample pump, wherein loading valve is eight to lead to valve, eight lead to wherein five interfaces of eight interfaces on the valve body of valve port of export respectively with the port of export, the two ends of loading ring, the entrance point of chromatographic column and the sample pump of systems pumps is connected, an interface in eight interfaces is that sample injector loads interface to loading ring, and two interfaces in eight interfaces are removal waste fluid mouth.
Description
Technical field
The present invention relates to a kind of flow circuit control valve and one utilizes chromatography that material separation becomes each component, prepare purification or survey
The system of examination analysis of material, particularly relates to a kind of eight and leads to valve and a kind of tomographic system with multiple loading pattern or liquid chromatograph
System.
Background technology
At present, lead to valve based on three seven and carry out the tomographic system of loading, be only capable of realizing each of loading ring super loading ring or sample pump
From individually connecting loading.As shown in Figure 1a, existing tomographic system includes systems pumps 1 ', loading valve 2 ', loading ring 3 ', layer
Analysis post 4 ' and detector 5 ', loading valve 2 ' is three seven and leads to valve, the valve body of loading valve 2 ' offers seven interfaces, respectively
For interface one to interface seven, systems pumps 1 ' is connected with interface two, and the two ends of loading ring 3 ' are connected with interface one and interface four,
The entrance point of chromatographic column 4 ' is connected with interface three, and detector 5 ' is connected with the port of export of chromatographic column 4 ', loading valve 2 '
Interface six and interface seven be waste liquid interface, the interface five of loading valve 2 ' be sample load interface.Open in the spool of loading valve 2 '
It is provided with three passages, respectively passage A, B, C.Loading valve 2 ' is provided with three stations, as shown in Figure 1a, at station one
Under state, interface two is connected by the second valve core channel B with interface three, and interface four and interface five are by the 3rd valve core channel C
Being connected, interface one is crossed the first valve core channel A and is connected with interface clematis stem, and this state loading valve is that sample loads position；Such as Fig. 1 b
Shown in, under station two-state, interface one is connected by the second valve core channel B with interface two, and interface three passes through with interface four
3rd valve core channel C is connected, and this state loading valve is that sample injects position；As illustrated in figure 1 c, under station three condition, interface
Two are connected by the second valve core channel B with interface seven, and this state loading valve is sample clean position.At needs to loading ring 3 '
When loading sample, loading valve 2 ' is under station one state, and systems pumps 1 ' is straight by the second valve core channel B of loading valve 2 '
Connecing and connect with chromatographic column 4 ', sample is loaded in loading ring 3 ' by sample syringe by the interface five of loading valve 2 ', unnecessary
Sample will discharge system from interface six；After sample has loaded, control by running automated software program or manual software
Making loading valve 2 ' be changed into station two-state from station one state, station two-state is that the sample of loading valve 2 ' injects state, is
System pump 1 ' injects buffer by the second valve core channel B in loading valve 2 ' in loading ring 3 ', in promoting loading ring 3 '
Sample entered in chromatographic column 4 ' by the 3rd valve core channel C in loading valve 2 '.Under station three condition, systems pumps 1 '
By the second valve core channel B in loading valve 2 ', waste liquid can be discharged system with the cleaning of flow path system before loading valve.If
When sample applied sample amount is bigger, we are many can use systems pumps or sample pump loading is separately configured, and systems pumps loading is typically passed through
A2 position loading in flow circuit diagram, loading has two weak points here: 1, A2 is buffer inlet, buffer inlet quilt
Tie up the operation convenience affecting buffer；2, systems pumps cost is high, is frequently used for loading the most contaminated, reduces its life-span.
So generally we can use an economy, single-minded sample pump to the problem solving bulk sample loading.But grasp from above
If making process it will be seen that once connect loading ring, loading valve the most no longer has interface can connect sample pump, so original solution
Scheme is: loading of dismantling ring, and sample pump is directly connected to the interface four of loading valve, needs the most manually to grasp the when of loading
Make: valve is proceeded to station two sample inject state, start sample pump, or by automated procedures run time start simultaneously this two
Individual order.The problem that this operator scheme is brought is: loading ring and sample pump can only alternative, applied sample amount connects sample when of few
Ring, connects sample pump when that applied sample amount being big, if the most individual experiment, and sample size is not of uniform size, it is necessary to constantly tear open
Unload and access, bring inconvenience and the triviality of operation, and the life-span of loading valve is also brought along adverse influence.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of one eight easy and simple to handle, diverse in function lead to valve and one based on eight lead to
The tomographic system of valve.
One eight of the present invention leads to valve, including spool and valve body, wherein said valve body offers eight interfaces, respectively interface one
To interface eight, offering four passages in described spool, the respectively first valve core channel, the second valve core channel, the 3rd spool are logical
Road and the 4th valve core channel, described spool is positioned at valve body and has four stations, at station for the moment, the interface one on valve body with connect
Mouth four is connected by the second valve core channel, and interface two is connected by the first valve core channel with interface three, interface five and interface six
Being connected by the 3rd valve core channel, interface seven is connected by the 4th valve core channel with interface eight；When station two, on valve body
Interface one be connected by the first valve core channel with interface two, interface three is connected by the second valve core channel with interface eight, connects
Mouth four is connected by the 3rd valve core channel with interface five, and interface six is connected by the 4th valve core channel with interface seven；At station
When three, the interface one on valve body is connected by the 3rd valve core channel with interface eight, and interface two is led to by the 4th spool with interface three
Road is connected, and interface four is connected by the second valve core channel with interface seven, and interface five and interface clematis stem cross the first valve core channel phase
Connection；When station four, the interface one on valve body is crossed the second valve core channel with interface clematis stem and is connected, interface two and interface threeway
Crossing the 3rd valve core channel to be connected, interface four is connected by the 4th valve core channel with interface five, and interface seven and interface eight are by the
One valve core channel is connected.
One eight of the present invention leads to valve, and wherein said spool is positioned at valve body and also has the 5th station, when station five, on valve body
Interface one be connected by the 4th valve core channel with interface eight, interface two is connected by the second valve core channel with interface five, connects
Mouth three is connected by the first valve core channel with interface four, and interface six is connected by the 3rd valve core channel with interface seven.
One eight of the present invention leads to valve, and wherein said spool is cylindrical, and eight interfaces on described valve body are along valve body circumferencial direction
Being uniformly distributed successively, wherein spool during station two is relative to station Spool rotating+45 ° for the moment；Spool during station three is relative to work
Position Spool rotating-135 ° for the moment；Spool during station four is relative to station Spool rotating+135 ° for the moment；During station five
Spool is relative to station Spool rotating-45 ° for the moment.
A kind of tomographic system leading to valve based on eight of the present invention, including systems pumps, loading valve, loading ring, chromatographic column, detector and
Sample pump, described detector is connected with the port of export of chromatographic column, and wherein said loading valve is eight to lead to valve, and described eight lead to the valve of valve
Offer eight interfaces, respectively interface one to interface eight on body, wherein five interfaces of described eight interfaces respectively with systems pumps
The port of export, the two ends of loading ring, the entrance point of chromatographic column be connected with the port of export of sample pump, one in eight interfaces connects
Mouth is that sample injector loads interface to loading ring, and two interfaces in eight interfaces are removal waste fluid mouth, offer in described spool
Article four, passage, the respectively first valve core channel, the second valve core channel, the 3rd valve core channel and the 4th valve core channel, described spool
Being positioned at valve body and have four stations, at station for the moment, the interface one on valve body is connected by the second valve core channel with interface four,
Interface two is connected by the first valve core channel with interface three, and interface five is crossed the 3rd valve core channel with interface clematis stem and is connected, interface
Seven are connected by the 4th valve core channel with interface eight；When station two, the interface one on valve body and interface two are by the first spool
Passage is connected, and interface three is connected by the second valve core channel with interface eight, and interface four and interface five are by the 3rd valve core channel
Being connected, interface six is connected by the 4th valve core channel with interface seven；When station three, the interface one on valve body and interface eight
Being connected by the 3rd valve core channel, interface two is connected by the 4th valve core channel with interface three, and interface four passes through with interface seven
Second valve core channel is connected, and interface five is crossed the first valve core channel with interface clematis stem and is connected；When station four, connecing on valve body
Mouth one is crossed the second valve core channel with interface clematis stem and is connected, and interface two is connected by the 3rd valve core channel with interface three, interface four
Being connected by the 4th valve core channel with interface five, interface seven is connected by the first valve core channel with interface eight；
Four stations of described loading valve make the one that tomographic system is in following six kinds of duties respectively:
Manual load state: for connecting the interface of sample injector by valve core channel with loading ring wherein on loading valve body
One port is connected, and another port of loading ring is connected with one of them removal waste fluid mouth on valve body by valve core channel；
Loading ring sample injects state: the port of export of systems pumps is connected with one of them port of loading ring by valve core channel,
Another port of loading ring is connected with the entrance point of chromatographic column by valve core channel；
Systems pumps cleans state: the port of export of systems pumps is connected with one of them removal waste fluid mouth on valve body by valve core channel；
Sample pump loading state: the port of export of sample pump is connected with the entrance point of chromatographic column by valve core channel；
Sample pump loads loading ring status: the port of export of sample pump is connected with one of them port of loading ring by valve core channel,
Another port of loading ring is connected with one of them removal waste fluid mouth on valve body by valve core channel；
Sample pump cleans state: the port of export of sample pump is connected with one of them removal waste fluid mouth on valve body by valve core channel；
The corresponding manual load state of the station one of loading valve and sample pump clean state, and the corresponding loading ring sample of station two injects state,
Station three correspondence system pump cleans state and sample pump loading state, and station four counter sample pump loads loading ring status.
A kind of tomographic system leading to valve based on eight of the present invention, the interface one on the valve body of wherein said loading valve and sample delivery side of pump
End is connected, and interface seven is connected with the port of export of systems pumps, and interface three is connected with the two-port of interface six with loading ring, connects
Mouth eight is connected with the entrance point of chromatographic column, and interface five is that sample injector loads interface to loading ring, and interface two and interface four are
Removal waste fluid mouth；When loading valve at station for the moment, tomographic system is in manual load state or sample pump cleans state, when loading valve
When station two, tomographic system is in loading ring sample and injects state, and when loading valve is at station three, tomographic system is in system
Pump cleans state or sample pump loading state, and when loading valve is at station four, tomographic system is in sample pump and loads loading ring status.
A kind of tomographic system leading to valve based on eight of the present invention, wherein said loading ring is super loading ring.
A kind of tomographic system leading to valve based on eight of the present invention, wherein said systems pumps is single pump or by the first system in parallel or series
Pump and the double pump pump group of second system pump composition.
A kind of tomographic system leading to valve based on eight of the present invention, is connected to feed liquor three at wherein said single pump or double pump intake
Logical valve.
A kind of tomographic system leading to valve based on eight of the present invention, wherein said loading valve is additionally provided with the 5th station, when station five,
Interface one on valve body is connected by the 4th valve core channel with interface eight, and interface two is connected by the second valve core channel with interface five
Logical, interface three is connected by the first valve core channel with interface four, and interface six is connected by the 3rd valve core channel with interface seven,
Described tomographic system is in the 7th kind of duty: systems pumps loads loading ring status: the port of export of systems pumps passes through valve core channel
Being connected with one of them port of loading ring, another port of loading ring is by valve core channel and one of them waste discharge on valve body
Liquid mouth is connected.
A kind of tomographic system leading to valve based on eight of the present invention, wherein said detector includes ultraviolet-visible detector, Conductivity detection
Device and pH detector.
The present invention a kind of eight is led to valve and a kind of is one base of the present invention based on the eight tomographic system differences from prior art leading to valve
Using a kind of eight to lead to valve as loading valve in eight tomographic systems leading to valve, this loading valve is more two than three common seven through post valves
Station and an interface, be directly accessed sample pump on the interface one of loading valve simultaneously, and two stations utilizing loading valve to increase are joined
Closing sample pump makes the tomographic system of the present invention both keep a small amount of sample loading pattern of original loading ring, can be entered by sample pump again
The a large amount of sample loadings of row, or carry out repeatedly a small amount of sample loading by sample pump to loading ring.The tomographic system of the present invention can
In the case of connecting at not repeated disassembled and assembled loading ring and sample pump, possess the loading pattern of multiple applied sample amount, made operator's
Operate easier, improve work efficiency, and ensure that the service life of each parts in system.
To the present invention a kind of eight are led to valve and a kind of are described further based on eight tomographic systems leading to valve below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Structural representation when Fig. 1 a is that in prior art, tomographic system is in loading (Load) state；
Structural representation when Fig. 1 b is that in prior art, tomographic system is in loading (Inject) state；
Structural representation when Fig. 1 c is that in prior art, tomographic system is in removal waste fluid (Waste) state；
Fig. 2 a is that the present invention eight is led to the spool of valve and is in station valve position state diagram for the moment；
Fig. 2 b is the valve position state diagram that the present invention eight leads to when the spool of valve is in station two；
Fig. 2 c is the valve position state diagram that the present invention eight leads to when the spool of valve is in station three；
Fig. 2 d is the valve position state diagram that the present invention eight leads to when the spool of valve is in station four；
Fig. 2 e is the valve position state diagram that the present invention eight leads to when the spool of valve is in station five；
Fig. 3 a is the structural representation that tomographic system of the present invention is in loading ring loading sample (station one)；
Fig. 3 b is the structural representation that tomographic system of the present invention is in loading ring loading (station two)；
Fig. 3 c is the structural representation that tomographic system of the present invention is in systems pumps removal waste fluid (station three)；
Fig. 3 d is the structural representation that tomographic system of the present invention is in sample pump loading (station three)；
Fig. 3 e is that tomographic system of the present invention is in the sample pump structural representation to loading ring loading sample (station four)；
Fig. 3 f is the structural representation that tomographic system of the present invention is in sample pump removal waste fluid (station one)；
Fig. 3 g is that tomographic system of the present invention is in the systems pumps structural representation to loading ring loading (station five).
Detailed description of the invention
As shown in Figure 2 a, one eight of the present invention leads to valve, including spool and valve body, valve body offers eight interfaces, respectively connects
Mouth one to interface eight, eight interfaces on valve body are uniformly distributed successively along valve body circumferencial direction, offer four passages in spool,
It is respectively the first valve core channel A, the second valve core channel B, the 3rd valve core channel C and the 4th valve core channel D.Spool is positioned at valve
Internal have five stations, and at station for the moment, the interface one on valve body is connected by the second valve core channel B with interface four, connects
Mouth two is connected by the first valve core channel A with interface three, and interface five is crossed the 3rd valve core channel C with interface clematis stem and is connected, and connects
Mouth seven is connected by the 4th valve core channel D with interface eight.As shown in Figure 2 b, relative station spool for the moment turns clockwise
45 ° make spool be in station two, and the interface one on valve body is connected by the first valve core channel A with interface two, interface three with connect
Mouthfuls eight are connected by the second valve core channel B, and interface four is connected by the 3rd valve core channel C with interface five, interface six with connect
Mouth seven is connected by the 4th valve core channel D.As shown in Figure 2 c, rotate 135 ° counterclockwise relative to station spool for the moment and make valve
Core is in station three, and the interface one on valve body is connected by the 3rd valve core channel C with interface eight, and interface two passes through with interface three
4th valve core channel D is connected, and interface four is connected by the second valve core channel B with interface seven, interface five and interface clematis stem mistake
First valve core channel A is connected.As shown in Figure 2 d, turn clockwise 135 ° relative to station spool for the moment and make spool be in
Station four, the interface one on valve body crosses the second valve core channel B and is connected with interface clematis stem, and interface two and interface three are by the 3rd valve
Core channel C is connected, and interface four is connected by the 4th valve core channel D with interface five, and interface seven and interface eight are by the first valve
Core passage A is connected.As shown in Figure 2 e, rotate 45 ° counterclockwise relative to station spool for the moment and be in station five, valve body
On interface one be connected by the 4th valve core channel D with interface eight, interface two is connected by the second valve core channel B with interface five
Logical, interface three is connected by the first valve core channel A with interface four, and interface six is connected by the 3rd valve core channel C with interface seven
Logical.
As shown in Figure 3 a, the present invention based on eight tomographic systems realizing multiple automatic loading pattern leading to valve, including systems pumps 1,
Loading valve 2, loading ring 3, chromatographic column 4, detector 5 and sample pump 6, detector 5 is connected with the port of export of chromatographic column 4.
Systems pumps 1 is the first system pump P1 and second system pump P2, the first system pump P1 and the second system pump of (or series connection) in parallel
Liquid inlet tee joint valve 8 it is connected to, loading ring 3 or be super loading ring at the inlet of P2.Loading valve 2 is five eight and leads to valve,
Five eight lead to and offer eight interfaces, respectively interface one to interface eight on the valve body of valve, the interface one on the valve body of loading valve 2
Being connected with the port of export of sample pump 6, interface seven is connected with the port of export of systems pumps 1, interface three and interface six and loading ring
The two-port of 3 is connected, and interface eight is connected with the entrance point of chromatographic column 4, and interface five is that sample injector loads to loading ring
Interface, interface two and interface four are removal waste fluid mouth.Detector 5 is connected with the port of export of chromatographic column 4, and detector 5 includes purple
Outer visible light detector UV, electric conductivity detector E and pH detector.
Four passages, the respectively first valve core channel A, the second valve core channel B, the 3rd valve is offered in the spool of loading valve 2
Core channel C and the 4th valve core channel D.Spool is positioned at valve body and has five stations, at station for the moment, and the interface one on valve body
Being connected by the second valve core channel B with interface four, interface two is connected by the first valve core channel A with interface three, interface five
Crossing the 3rd valve core channel C with interface clematis stem to be connected, interface seven is connected by the 4th valve core channel D with interface eight.Such as Fig. 2 b
Shown in, relative station spool for the moment turns clockwise 45 ° and makes spool be in station two, the interface one on valve body and interface two-way
Crossing the first valve core channel A to be connected, interface three is connected by the second valve core channel B with interface eight, interface four and interface five-way
Crossing the 3rd valve core channel C to be connected, interface six is connected by the 4th valve core channel D with interface seven.As shown in Figure 2 c, phase
Station spool for the moment is rotated 135 ° counterclockwise makes spool be in station three, and the interface one on valve body and interface eight are by the 3rd
Valve core channel C is connected, and interface two is connected by the 4th valve core channel D with interface three, and interface four and interface seven are by second
Valve core channel B is connected, and interface five is crossed the first valve core channel A and is connected with interface clematis stem.As shown in Figure 2 d, relative to work
Position spool for the moment turns clockwise 135 ° and makes spool be in station four, and the interface one on valve body crosses the second spool with interface clematis stem
Passage B is connected, and interface two is connected by the 3rd valve core channel C with interface three, and interface four and interface five are by the 4th spool
Passage D is connected, and interface seven is connected by the first valve core channel A with interface eight.As shown in Figure 2 e, relative to station one
Time spool rotate 45 ° counterclockwise and be in station five, the interface one on valve body is connected by the 4th valve core channel D with interface eight,
Interface two is connected by the second valve core channel B with interface five, and interface three is connected by the first valve core channel A with interface four,
Interface six is connected by the 3rd valve core channel C with interface seven.
Front four stations of loading valve 2 make the one that tomographic system is in following six kinds of duties respectively:
As shown in Figure 3 a, when needs load sample to loading ring 3, in the case of loading valve 2 is in station one, systems pumps 1 is led to
The 4th valve core channel D crossing loading valve 2 directly connects the balance carrying out chromatographic column 4 with chromatographic column 4, and sample injector is by sample
Interface the five, the 3rd valve core channel C and interface six by loading valve 2 are loaded in loading ring 3, unnecessary sample from interface three,
First valve core channel A and interface two discharge system, complete the manual load of sample.
As shown in Figure 3 b, after sample has loaded, make loading valve 2 by automatic running pipeline software program or manual operation software
Being changed into station two from station one, station two is the loading state of loading valve 2, and systems pumps 1 is by the 4th valve in loading valve 2
Core passage D injects buffer in loading ring 3, promotes the sample in loading ring 3 by the second valve core channel in loading valve 2
B enters in chromatographic column 4.
As shown in Figure 3 c, in the case of station three, purging system pump 1 can by the second valve core channel B in loading valve 2 and
Waste liquid is discharged system by interface four, it is to avoid the systems pumps cleanout fluid of high flow rate enters chromatographic column and then causes the damage of chromatographic column.
As shown in Figure 3 d, in the case of station three, the port of export of sample pump 6 is entered by the 3rd valve core channel C and chromatographic column 4
Mouth end is connected, and starts sample pump 6, carries out a large amount of sample by the 3rd valve core channel C in loading valve 2 in chromatographic column 4
Loading.After completion of the sample, sample pump 6 quits work, and loading valve 2 proceeds to station one, and systems pumps 1 starts, and carries out back layer
Analysis step washes post, can carry out large volume loading by sample pump in the case of this, it is to avoid use the long-time loading of systems pumps to cause
Pollute and the severe infringement cleaned.
As shown in Figure 3 e, in the case of station four, sample pump 6 is by the second valve core channel B in loading valve 2 and loading ring 3
It is connected, starts sample pump 6, in loading ring 3, carry out low-volume samples loading by the second valve core channel B in loading valve 2,
Loading controls loading valve 2 after completing and is converted into station two, is pushed in chromatographic column 4 by the sample in loading ring 3, repeats this station
Three and station two, it is possible to achieve the continuous several times of a small amount of sample when repeated authentication experiment or process exploitation is repeatedly to chromatographic column 4
Carry out low-volume samples loading.
As illustrated in figure 3f, in the case of station one, start sample pump 6, the cleaning of sample pump can be realized, by loading valve 2
The second valve core channel B waste liquid is discharged system.
If whole system is configured without sample pump, can be connected specially by one of them entrance A2 of systems pumps liquid inlet tee joint valve
Connecing sample, as shown in figure 3g, in the case of station five, systems pumps 1 is connected with loading ring 3 by the 3rd valve core channel C,
By systems pumps 1, sample is loaded in loading ring 3, completes in repeated authentication experiment or the company of a small amount of sample during process exploitation
Continuous loading the most repeatedly.
Embodiment described above is only to be described the preferred embodiment of the present invention, not carries out the scope of the present invention
Limiting, on the premise of designing spirit without departing from the present invention, technical scheme is made by those of ordinary skill in the art
Various deformation and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (10)
1. eight lead to a valve, including spool and valve body, it is characterised in that: offer eight interfaces on described valve body, respectively connect
Mouthful one to interface eight, offers four passages in described spool, the respectively first valve core channel (A), the second valve core channel (B),
3rd valve core channel (C) and the 4th valve core channel (D), described spool is positioned at valve body and has four stations, at station for the moment,
Interface one on valve body is connected by the second valve core channel (B) with interface four, and interface two is led to by the first spool with interface three
(A) is connected in road, and interface five is crossed the 3rd valve core channel (C) and is connected with interface clematis stem, and interface seven and interface eight are by the 4th
Valve core channel (D) is connected；When station two, the interface one on valve body is connected by the first valve core channel (A) with interface two
Logical, interface three is connected by the second valve core channel (B) with interface eight, and interface four and interface five are by the 3rd valve core channel (C)
Being connected, interface six is connected by the 4th valve core channel (D) with interface seven；When station three, interface on valve body one with
Interface eight is connected by the 3rd valve core channel (C), and interface two is connected by the 4th valve core channel (D) with interface three, connects
Mouth four is connected by the second valve core channel (B) with interface seven, and interface five is crossed the first valve core channel (A) and is connected with interface clematis stem
Logical；When station four, the interface one on valve body is crossed the second valve core channel (B) and is connected with interface clematis stem, interface two and interface
Three are connected by the 3rd valve core channel (C), and interface four is connected by the 4th valve core channel (D) with interface five, interface seven
It is connected by the first valve core channel (A) with interface eight.
The most according to claim 1 a kind of eight lead to valve, it is characterised in that: described spool is positioned at valve body and also has the 5th
Station, when station five, the interface one on valve body and interface eight is connected by the 4th valve core channel (D), interface two with connect
Mouth five is connected by the second valve core channel (B), and interface three is connected by the first valve core channel (A) with interface four, interface
Six are connected by the 3rd valve core channel (C) with interface seven.
The most according to claim 1 and 2 a kind of eight lead to valve, it is characterised in that: described spool is cylindrical, described valve body
On eight interfaces be uniformly distributed successively along valve body circumferencial direction, wherein spool during station two relative to station spool for the moment revolve
Turn+45 °；Spool during station three is relative to station Spool rotating-135 ° for the moment；Spool during station four is relative to station for the moment
Spool rotating+135 °；Spool during station five is relative to station Spool rotating-45 ° for the moment.
4. based on eight tomographic systems realizing multiple automatic loading pattern leading to valve, including systems pumps (1), loading valve (2),
Loading ring (3), chromatographic column (4), detector (5) and sample pump (6), described detector (5) goes out with chromatographic column (4)
Mouthful end is connected, it is characterised in that: described loading valve (2) is eight to lead to valve, and eight lead to and offer eight interfaces on the valve body of valve, point
Not Wei interface one to interface eight, wherein five interfaces of described eight interfaces respectively with the port of export, the loading ring (3) of systems pumps (1)
Two ends, the entrance point of chromatographic column (4) be connected with the port of export of sample pump (6), an interface in eight interfaces is sample
Product syringe loads interface to loading ring, and two interfaces in eight interfaces are removal waste fluid mouth, eight lead to the spool of valve in offer four
Bar passage, the respectively first valve core channel (A), the second valve core channel (B), the 3rd valve core channel (C) and the 4th spool are logical
Road (D), described spool is positioned at valve body and has four stations, and at station for the moment, the interface one on valve body and interface four are by the
Two valve core channels (B) are connected, and interface two is connected by the first valve core channel (A) with interface three, interface five and interface six
Being connected by the 3rd valve core channel (C), interface seven is connected by the 4th valve core channel (D) with interface eight；At station two
Time, the interface one on valve body is connected by the first valve core channel (A) with interface two, and interface three and interface eight are by the second valve
Core passage (B) is connected, and interface four is connected by the 3rd valve core channel (C) with interface five, and interface six passes through with interface seven
4th valve core channel (D) is connected；When station three, the interface one on valve body and interface eight are by the 3rd valve core channel (C)
Being connected, interface two is connected by the 4th valve core channel (D) with interface three, and interface four is led to by the second spool with interface seven
(B) is connected in road, and interface five is crossed the first valve core channel (A) and is connected with interface clematis stem；When station four, connecing on valve body
Mouth one is crossed the second valve core channel (B) with interface clematis stem and is connected, and interface two is connected by the 3rd valve core channel (C) with interface three
Logical, interface four is connected by the 4th valve core channel (D) with interface five, and interface seven and interface eight are by the first valve core channel (A)
It is connected；
Four stations of described loading valve (2) make the one that tomographic system is in following six kinds of duties respectively:
Manual load state: for connecting the interface of sample injector by valve core channel and loading ring (3) on loading valve (2) valve body
One of them port be connected, another port of loading ring (3) is by one of them removal waste fluid mouth on valve core channel and valve body
It is connected；
Loading ring sample injects state: the port of export of systems pumps (1) is by one of them end of valve core channel with loading ring (3)
Mouth is connected, and another port of loading ring (3) is connected by the entrance point of valve core channel with chromatographic column (4)；
Systems pumps cleans state: the port of export of systems pumps (1) is connected with one of them removal waste fluid mouth on valve body by valve core channel；
Sample pump loading state: the port of export of sample pump (6) is connected by the entrance point of valve core channel with chromatographic column (4)；
Sample pump loads loading ring status: the port of export of sample pump (6) passes through one of them of valve core channel and loading ring (3)
Port is connected, and another port of loading ring (3) is connected with one of them removal waste fluid mouth on valve body by valve core channel；
Sample pump cleans state: the port of export of sample pump (6) is connected with one of them removal waste fluid mouth on valve body by valve core channel；
The corresponding manual load state of the station one of loading valve (2) and sample pump clean state, and the corresponding loading ring sample of station two injects
State, station three correspondence system pump cleans state and sample pump loading state, and station four counter sample pump loads loading ring status.
A kind of tomographic system realizing multiple automatic loading pattern leading to valve based on eight the most according to claim 4, its feature
It is: the interface one on the valve body of described loading valve (2) is connected with the port of export of sample pump (6), interface seven and systems pumps
(1) the port of export is connected, and interface three is connected with the two-port of interface six with loading ring (3), interface eight and chromatographic column (4)
Entrance point be connected, interface five is sample injector loads interface to loading ring, and interface two and interface four are removal waste fluid mouth；When
At station for the moment, tomographic system is in manual load state to loading valve (2) or sample pump cleans state, when loading valve (2) exists
During station two, tomographic system is in loading ring sample and injects state, and when loading valve (2) is at station three, tomographic system is in and is
System pump cleans state or sample pump loading state, and when loading valve (2) is at station four, tomographic system is in sample pump and loads loading
Ring status.
A kind of tomographic system realizing multiple automatic loading pattern leading to valve based on eight the most according to claim 5, its feature
It is: described loading ring (3) is super loading ring.
A kind of tomographic system realizing multiple automatic loading pattern leading to valve based on eight the most according to claim 5, its feature
It is: described systems pumps (1) for single pump or is made up of the first system pump (P1) in parallel or series and second system pump (P2)
Double pump pump group.
A kind of tomographic system realizing multiple automatic loading pattern leading to valve based on eight the most according to claim 7, its feature
It is: at described single pump or double pump intake, be connected to liquid inlet tee joint valve (8).
A kind of tomographic system realizing multiple automatic loading pattern leading to valve based on eight the most according to claim 8, its feature
Being: described loading valve (2) is additionally provided with the 5th station, when station five, interface on valve body one and interface eight are by the
Four valve core channels (D) are connected, and interface two is connected by the second valve core channel (B) with interface five, interface three and interface four
Being connected by the first valve core channel (A), interface six is connected by the 3rd valve core channel (C) with interface seven, described chromatography
System is in the 7th kind of duty: systems pumps loads loading ring status: the port of export of systems pumps (1) passes through the 3rd valve core channel
(C) one of them port with loading ring (3) is connected, and another port of loading ring (3) passes through the first valve core channel
(A) it is connected with one of them removal waste fluid mouth on valve body.
A kind of tomographic system realizing multiple automatic loading pattern leading to valve based on eight the most according to claim 9, it is special
Levy and be: described detector (5) includes ultraviolet-visible detector (UV), electric conductivity detector (E) and pH detector (pH).
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| WO2021122354A3 (en) * | 2019-12-16 | 2021-09-16 | ECO Holding 1 GmbH | Device for handling fluid within an at least partially electrically driven vehicle |
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| CN106226446B (en) * | 2016-09-21 | 2018-01-30 | 贵州省环境科学研究设计院 | A kind of gas-chromatography dilutes inlet duct |
| CN107940029B (en) | 2017-11-14 | 2019-10-25 | 珠海格力电器股份有限公司 | Two eight ways valves and trolley air conditioner system |
| CN110927299A (en) * | 2019-11-26 | 2020-03-27 | 北京华创精科生物技术有限公司 | Sample injection valve |
| CN215950470U (en) * | 2021-01-11 | 2022-03-04 | 广东德昌电机有限公司 | Multi-port valve and thermal management system having the same |
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| US4521225A (en) * | 1983-10-11 | 1985-06-04 | Getty Synthetic Fuels, Inc. | Instrument and process for testing landfill gas for chlorinated hydrocarbons |
| JP4426979B2 (en) * | 2005-01-24 | 2010-03-03 | 株式会社資生堂 | Sample injection apparatus, sample injection method, and liquid chromatography apparatus |
| CN2935123Y (en) * | 2006-04-03 | 2007-08-15 | 北京东西分析仪器有限公司 | Eight-port valve and eight-port valve conversion sample-handling system |
| CN102141556A (en) * | 2010-12-30 | 2011-08-03 | 西南化工研究设计院 | Analysis method for determination of total sulphur in gas through gas chromatography and back-blowing |
| CN103785314B (en) * | 2014-03-04 | 2016-05-11 | 厦门大学 | A kind of blender and flow type photometric detection automated analysis instrument |
| CN103983722B (en) * | 2014-04-28 | 2015-06-24 | 华东师范大学 | A gas chromatograph for hydrocarbon component analysis of a catalytic cracking product of gasoline and diesel |
| CN203881727U (en) * | 2014-04-28 | 2014-10-15 | 华东师范大学 | Gas chromatograph for analyzing hydrocarbon components of catalytic cracking products of gasoline and diesel |
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| WO2021122354A3 (en) * | 2019-12-16 | 2021-09-16 | ECO Holding 1 GmbH | Device for handling fluid within an at least partially electrically driven vehicle |
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