CN104730216B - A kind of analysis metering device and liquid analysis system - Google Patents

A kind of analysis metering device and liquid analysis system Download PDF

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CN104730216B
CN104730216B CN201510177534.6A CN201510177534A CN104730216B CN 104730216 B CN104730216 B CN 104730216B CN 201510177534 A CN201510177534 A CN 201510177534A CN 104730216 B CN104730216 B CN 104730216B
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liquid
control valve
mouth
pipe
analytical equipment
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CN104730216A (en
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肖巍
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肖巍
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Abstract

The invention discloses a kind of analysis metering device and liquid analysis system, relate to fluid analysis technical field, the problem solved is to solve the inaccurate problem of liquid meter and realize the accurate measurement of liquid of different volumes, the certainty of measurement of analysis system of increasing water quality.The technical scheme that wherein analysis metering device mainly uses is: the first control valve, includes an air port being connected with air including public port with the multiple distribution ports that alternatively can connect with public port, multiple distribution ports;Reaction analytical equipment, has first passage mouth and second channel mouth;Gauge line, its one end is connected with public port by the second control valve, and the other end is connected with first passage mouth, and the tube wall of gauge line is provided with the first connection mouth of pipe, first connects the mouth of pipe connects the first sewer pipe by the 3rd control valve, and gauge line is the pipe that internal diameter is less than 4mm;Fluid driver, is connected with reaction analytical equipment.Present invention is mainly used for chemical analysis instrument technical field.

Description

A kind of analysis metering device and liquid analysis system
Technical field
The present invention relates to fluid analysis technical field, particularly relate to a kind of analysis metering device and liquid Analysis system.
Background technology
In chemical analysis instrument, the design of fluid path metering system is of crucial importance, and it directly affects divides The accuracy of analysis result.Existing liquid analysis system is generally provided with to the liquor sample gathered Carry out the analysis metering device measured, by analyzing metering device, liquid is measured accurately, protect The certainty of measurement of card liquid analysis system.
In prior art, the metering method many employings liquid storage unit to liquid carries out transfer, but this kind is counted When amount mode liquid volume in reaction analytical equipment is more than liquid storage unit volume, then need back and forth to hold Row transfer operation more than once, goes to step the most complicated time-consuming in these, and easily at liquid storage list Liquid film even liquid pearl, the certainty of measurement of impact analysis system is remained on the inwall of unit.
Summary of the invention
In view of this, the present invention provides a kind of and analyzes metering device and liquid analysis system, main purpose It is to solve the inaccurate problem of liquid meter and realizes the accurate meter of liquid of different volumes Amount, improves the certainty of measurement of liquid analysis system.
For reaching above-mentioned purpose, present invention generally provides following technical scheme:
On the one hand, embodiments of the invention provide one to analyze metering device, including:
First control valve, it includes public port and alternatively can connect many with described public port Individual distribution port, the plurality of distribution port includes an air port being connected with air;
Reaction analytical equipment, it has first passage mouth and second channel mouth;
Gauge line, its one end is connected with described public port by the second control valve, and the other end is with described First passage mouth connects, and the tube wall of described gauge line is provided with the first connection mouth of pipe, and described first even Adapter mouth connects the first sewer pipe by the 3rd control valve, and wherein, described gauge line is that internal diameter is less than 4mm Pipe.
Fluid driver, is connected with described reaction analytical equipment.
Foregoing, the internal diameter of described gauge line is in the range of 0.2mm-2mm.
Foregoing, the internal diameter of described reaction analytical equipment is more than 6 millimeters.
Foregoing, also including: detector of liquid, described detector of liquid is arranged on described metering Guan Shang.
Foregoing, described detector of liquid be arranged on described gauge line particularly as follows:
Described detector of liquid is arranged on described first passage mouth and described first and connects the pipe between the mouth of pipe On section.
Foregoing, also include: connecting tube;
Described fluid driver be connected with described reaction analytical equipment particularly as follows:
Described fluid driver is connected with described second channel mouth by described connecting tube.
Foregoing, described fluid driver be connected with described reaction analytical equipment particularly as follows:
Described fluid driver is arranged in the line segments of described gauge line, and described second channel mouth is with big Gas phase connects.
Foregoing, during described fluid driver is arranged on the line segments of described gauge line particularly as follows:
Described fluid driver is arranged on the pipeline between described detector of liquid and described first passage mouth Duan Zhong;Or,
Described fluid driver is arranged on described detector of liquid and described first and connects the pipe between the mouth of pipe In section;Or,
Described fluid driver is arranged on described first and connects the pipe between the mouth of pipe and described second control valve In section.
Foregoing, also include: at least one the 4th control valve;
It is additionally provided with at least one on the tube wall of described gauge line and second connects mouth of pipe, and be positioned at described the One connects on the tube wall between the mouth of pipe and described second control valve;
At least one second connection mouth of pipe described connects second by least one the 4th control valve described and gives up Liquid pipe.
On the one hand, embodiments of the invention provide a kind of liquid analysis system, comprising:
First control valve, it includes public port and alternatively can connect many with described public port Individual distribution port, the plurality of distribution port includes an air port being connected with air;
Reaction analytical equipment, it has first passage mouth and second channel mouth;
Gauge line, its one end is connected with described public port by the second control valve, and the other end is with described First passage mouth connects, and the tube wall of described gauge line is provided with the first connection mouth of pipe, and described first even Adapter mouth connects the first sewer pipe by the 3rd control valve, and wherein, described gauge line is that internal diameter is less than 4mm Pipe.
Fluid driver, is connected with described reaction analytical equipment;
Control circuit, be used for controlling described first control valve, described reaction analytical equipment, described second The unlatching of the work of control valve, described 3rd control valve and described fluid driver and stopping;
Wherein, described first control valve, described reaction analytical equipment, described second control valve, described 3rd control valve and described fluid driver are all connected with described control circuit.
By technique scheme, one of the present invention analyzes metering device and liquid analysis system at least has Have the advantage that
The analysis metering device of the present invention by arrange the first control valve, the second control valve, gauge line, Reaction analytical equipment and fluid driver are connected in series, and arrange multiple distribution end of the first control valve Mouthful include an air port being connected with air so that the present invention when feed liquor or discharge opeing, liquid Body moves the most in the same direction, it is to avoid sequential injection formula flow path system must be by liquid storage unit Turning the defect of liquid, when decreasing feed liquor, length and the tube wall surface of stream flows through conduit amass, thus subtract Lack liquid on tube wall, remained the probability of liquid film or wall built-up, improve the precision of feed liquor, be improved particularly Feed liquor precision when micro-liquid inlet volume (such as below 0.1ml);And owing to gauge line is undersized Structure designs: gauge line is the pipe that internal diameter is less than 4mm so that liquid utilizes liquid surface in tubule Liquid can upwards the most successfully be flowed in reaction analytical equipment, so that liquid is or not tension force and viscosity Can be along tube wall generation refluence phenomenon;On the other hand by arranging gauge line, its one end is by the second control Valve processed is connected with public port, and the other end is connected with first passage mouth, and the tube wall of gauge line is provided with First connects the mouth of pipe, and first connects the mouth of pipe connects the first sewer pipe by the 3rd control valve so that this Bright discharge waste liquid time, it is only necessary to close the second control valve and open the 3rd control valve just can be very convenient The waste liquid in gauge line and the waste liquid in reaction analytical equipment are discharged smoothly.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the present invention's Technological means, and can be practiced according to the content of description, below with presently preferred embodiments of the present invention And after coordinating accompanying drawing to describe in detail such as.
Accompanying drawing explanation
Fig. 1 is that a kind of analysis that embodiments of the invention provide measures apparatus structure schematic diagram;
Fig. 2 is that another kind of analysis that embodiments of the invention provide measures apparatus structure schematic diagram;
Fig. 3 is another analysis metering apparatus structure schematic diagram that embodiments of the invention provide;
Fig. 4 is a kind of reaction analytical equipment structural representation that embodiments of the invention provide;
Fig. 5 is the another kind of reaction analytical equipment structural representation that embodiments of the invention provide;
Fig. 6 is another reaction analytical equipment structural representation that embodiments of the invention provide;
Fig. 7 is another reaction analytical equipment structural representation that embodiments of the invention provide;
Detailed description of the invention
By further illustrating the technological means and merit that the present invention taked by reaching predetermined goal of the invention Effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the detailed description of the invention of the present patent application, structure, Feature and effect thereof, after describing in detail such as.In the following description, different " embodiments " or " real Execute example " refer to be not necessarily same embodiment.Additionally, special characteristic in one or more embodiment, Structure or feature can be combined by any suitable form.
As it is shown in figure 1, a kind of analysis metering device that one embodiment of the present of invention proposes, comprising:
First control valve 1, reaction analytical equipment 2, gauge line the 3, second control valve the 4, the 3rd control Valve 5 and fluid driver 6.Wherein,
First control valve 1, it includes public port 11 and alternatively can connect with described public port 11 Logical multiple distribution ports 12, the plurality of distribution port 12 includes an air being connected with air Port 121;
Reaction analytical equipment 2, it has first passage mouth 21 and second channel mouth 22;
Gauge line 3, its one end is connected with described public port 11 by the second control valve 4, the other end It is connected with described first passage mouth 21, the tube wall 31 of described gauge line 3 is provided with the first connecting tube Mouth 311, described first connects the mouth of pipe 311 connects the first sewer pipe by the 3rd control valve 5 (in figure not Illustrate), wherein, described gauge line 3 is less than the pipe of 4mm for internal diameter.
Fluid driver 6, is connected with described reaction analytical equipment 2.
Concrete, the first control valve 1 for sample introduction and switches different types of liquid, and it has public Port 11 and multiple distribution port 12, it is possible to alternatively connect with public port 11, such as by control The control of system processed realizes public port 11 and distributes connecting of port 12 with any one.According to survey Examination needs, part in multiple distribution ports 12 distribution port for respectively with different types of liquid to be measured Body, waste fluid container etc. connect;Air port 121 is connected with air, when public port 11 is switched to When connecting with air port 121, can in pipeline and reaction analytical equipment 2 suction air, with Realize sending into the liquid in gauge line 3 function of reaction analytical equipment 2, it is possible to hybrid reaction analysis Liquid in device 2, or detergent line.The quantity of distribution port 12 can be entered according to actual needs Row selects.Certain first control valve 1 can also be for be made up of multiple two-port valves and some connecting tubes, often The two ends of individual two-port valve connect public port and distribution port respectively, constitute a multichannel control valve, This is not limited by the concrete embodiment of the present invention, as long as it can have a public port and can The protection of the embodiment of the present invention is belonged to described public port with the multiple distribution ports alternatively connected Scope.
The reaction analytical equipment 2 different types of liquid after storing metering, different types of liquid Reaction analytical equipment 2 reacts, and detects reaction analytical equipment 2 by some detection parts The correlation properties of middle liquid.Reaction analytical equipment 2 can be structure as a whole, it is also possible to for including reaction Device and the Split type structure of analytical equipment, this is not limited by the concrete embodiment of the present invention, as long as Its function being capable of reaction and analysis belongs to the protection domain of the embodiment of the present invention.
The analysis metering device of the embodiment of the present invention by arrange first control valve the 1, second control valve 4, Gauge line 3, reaction analytical equipment 2 and fluid driver 6 are connected in series, and arrange the first control valve Multiple distribution ports 12 of 1 include an air port being connected with air 121 so that the present invention When feed liquor or discharge opeing, liquid moves the most in the same direction, it is to avoid sequential injection formula stream system System must be by the defect of liquid storage unit transfer liquid, the length of stream flows through conduit when decreasing feed liquor Amass with tube wall surface, thus decrease liquid on tube wall, remain the probability of liquid film or wall built-up, improve The precision of feed liquor, has been improved particularly the feed liquor precision when micro-liquid inlet volume (such as below 0.1ml);And And owing to the undersized structure of gauge line designs: gauge line is the pipe that internal diameter is less than 4mm so that liquid Surface tension of liquid and viscosity is utilized upwards directly liquid can successfully to be flowed into response analysis in tubule In device 2, so that liquid will not be along tube wall generation refluence phenomenon;On the other hand by arranging meter Buret 3, its one end is connected with public port 11 by the second control valve 4, the other end and first passage Mouth 21 connects, and the tube wall 31 of gauge line 3 is provided with the first connection mouth of pipe 311, and first connects the mouth of pipe 311 connect the first sewer pipe by the 3rd control valve 5 so that the present invention is when discharging waste liquid, it is only necessary to Close the second control valve 4 and open the 3rd control valve 5 just can be very easily by giving up in gauge line 3 Waste liquid in liquid and reaction analytical equipment 2 is discharged smoothly.
Further, in order to make liquid utilize in tubule surface tension of liquid and viscosity can by liquid to In upper the most all feedings reaction analytical equipment 2, the internal diameter of described gauge line 3 exists In the range of 0.2mm-2mm, now, utilize surface tension of liquid and the viscosity can be by liquid in gauge line 3 Upwards the most all send in reaction analytical equipment 2, so that liquid will not be sent out along tube wall Raw refluence phenomenon.
Further, the most various liquid react in reaction analytical equipment 2 and carry out Detection is analyzed, and the internal diameter of described reaction analytical equipment 2 is more than 6 millimeters, the design of this structure, convenient Various liquid uniformly mix in reaction analytical equipment 2, and by unnecessary bubble from reaction analytical equipment 2 Middle discharge.
Further, in order to improve feed liquor efficiency, as it is shown in figure 1, also include: detector of liquid 7; Described detector of liquid 7 is arranged on described gauge line 3.
Concrete, detector of liquid 7 is the contactless liquid level sensor not contacted with fluid, or For the photoelectrometer measuring device not contacted with fluid, can also be other noncontacts not contacted with fluid certainly Formula detector of liquid, it is also possible to for the detector of liquid contacted with liquid, the concrete embodiment of the present invention This is not limited, as long as whether somewhere belongs to this with the presence of liquid in it can detect gauge line The protection domain of inventive embodiments.
Further, described detector of liquid 7 is arranged on described first passage mouth 21 and described first even In line segments between adapter mouth 311.
Further, described analysis metering device also includes: connecting tube 8;As it is shown in figure 1, described stream Body driver 6 is connected with described second channel mouth 22 by connecting tube 8.
Further, except described fluid driver 6 is by connecting tube 8 and described second channel mouth 22 Outside connection, it is also possible to fluid driver 6 is arranged in the line segments of described gauge line 3, such as Fig. 2 Shown in, described fluid driver 6 is arranged in the line segments of described gauge line 3;Described second channel Mouth 22 is connected with air.
Further, described fluid driver 6 can be arranged on described detector of liquid 7 and described In line segments between one passway 21, it is also possible to be arranged on described detector of liquid 7 and described first Connect in the line segments between the mouth of pipe 311, it is also possible to be arranged on described first and connect the mouth of pipe 311 and institute State in the line segments between the second control valve 4.The concrete present invention executes example and does not limits this, only Want it can drive the liquid through the first control valve and the second control valve flows to reaction analytical equipment and belongs to The protection domain of the embodiment of the present invention.
The embodiment of the present invention by fluid driver 6 being arranged in the line segments of described gauge line 3, Make to analyze metering device 2 and can drive the liquid through the first control valve 1 He by fluid driver 6 Second control valve 4 flows to reaction analytical equipment 2, and leads to owing to arranging the second of reaction analytical equipment 2 Road junction 22 is connected with air so that the space relative atmospheric on reaction analytical equipment 2 top no longer has Malleation or negative pressure, when fluid driver 6 stops driving, liquid can stop flowing, reaction point immediately Liquid level in analysis apparatus 2 also will not produce disturbance.Whereby, it is ensured that analyze what metering device was taken The volume accuracy of liquid;It addition, itself has just ended liquid when fluid driver 6 does not works Flowing, is equivalent to the function of stop valve.
Further, in order to discharge unnecessary liquid, and it is automatically drained out giving up after water analysis completes Liquid, it is not necessary to additionally arrange pumping equipment, described fluid driver 6 is the fluid of positive and negative bi-directional drive Driver, wherein, fluid driver 6 can be peristaltic pump, when peristaltic pump quits work, its Body has ended the flowing of liquid, is equivalent to the function of stop valve.Certainly fluid driver 6 can also be Other types pump and the combination of valve, this is not limited by the concrete embodiment of the present invention, as long as it is Bi-directional drive also has the fluid driver of stop valve function and belongs to the protection model of the embodiment of the present invention Enclose.
Further, in order to realize the accurate measurement of the liquid of more different volumes, described analysis is measured Device also includes: at least one the 4th control valve 9, as it is shown on figure 3,
At least one second connection mouth of pipe 312, and position it is additionally provided with on the tube wall 31 of described gauge line 3 Connect on the tube wall between the mouth of pipe 311 and described second control valve 4 in described first;
At least one second connection mouth of pipe 312 described is connected by least one the 4th control valve 9 described Second sewer pipe (not shown).
Further, as shown in Figure 4, reaction analytical equipment 2 includes light source 23 and photodetector 24.
When reaction analytical equipment 2 is structure as a whole, as shown in Figure 4, light source 23 and photodetector 24 It is separately positioned on the both sides of reaction analytical equipment 2, and light source 23 and photodetector 24 are at same light Lu Shang.After liquid in the light transmission reaction analytical equipment 2 that light source 23 is launched, by photodetector 24 Receive, with the principle analysis liquid of luminosity colorimetric.
When reaction analytical equipment 2 is the Split type structure including reaction unit 25 and analytical equipment 26, As it is shown in figure 5, analytical equipment is depended on by first paragraph pipe 261, second segment pipe 262 and the 3rd section of pipe 263 The secondary integral tube being connected and communicating continuously, wherein the tube wall of second segment pipe 262 both sides is respectively provided with plane Light inlet window, light source 23 and photodetector 24 are separately positioned on the both sides of second segment pipe 262.Light source 23 After liquid in the light transmission second segment pipe 262 launched, received by photodetector 24, use luminosity colorimetric Principle analysis liquid.
Further, reaction analytical equipment 2 also include electrode to 27, as shown in Figure 6, wherein, electricity Can be extremely one or more pairs of to 27,
When reaction analytical equipment 2 is structure as a whole, electrode is arranged on 27 in reaction analytical equipment 2, In liquid enters reaction analytical equipment 2 or in reaction analytical equipment 2 after reaction, divide with current potential Analysis method analyzes liquid.
When reaction analytical equipment 2 is Split type structure, electrode is arranged on 27 in analytical equipment 26, After liquid enters in analytical equipment 26, analyze liquid with potentiometric analysis.
Further, reaction analytical equipment 2 also includes one or more ion selective electrode 28, such as figure Shown in 7;
When reaction analytical equipment 2 is structure as a whole, one or more ion selective electrodes 28 are arranged on In reaction analytical equipment 2, in liquid enters reaction analytical equipment 2 or at reaction analytical equipment 2 After interior reaction, analyze liquid with selectivity through film and potentiometric analysis.
When reaction analytical equipment 2 is Split type structure, one or more ion selective electrodes 28 are arranged on In analytical equipment 26, after liquid enters in analytical equipment 26, divide through film and current potential with selectivity Analysis method analyzes liquid.
Further, reaction analytical equipment 2 can also include other the structure for analyzing liquid, tool The embodiment of the present invention of body does not limits, as long as it can analyze liquid belongs to the embodiment of the present invention Protection domain.
As a example by a kind of analysis metering device that Fig. 3 provides, explanation analyzes how metering device realizes below The accurate measurement of the liquid of different volumes.
First set public port 11 and second and connect the internal volume of line segments between the mouth of pipe 312 as A, Second internal volume connecting the line segments between the mouth of pipe 312 and the first connection mouth of pipe 311 is B.
Metering liquid volume is that the work process of A+B is as follows:
The first step: the first control valve 1 is switched to the distribution port 12 of liquid to be taken, public port 11 It is connected with the distribution port 12 of liquid to be taken, opens the second control valve 4;;
Second step: controlling the work of fluid driver 6 forward drive, the distribution port 12 of liquid to be taken is right The liquid answered is inhaled in gauge line 3 under the driving of fluid driver 6, when detector of liquid 7 is examined When measuring liquid, fluid driver 6 quits work, or quits work after time delay a period of time;
3rd step: close the second control valve 4, opens the 3rd control valve 5;
4th step: fluid driver 6 reverse drive works, by detector of liquid 7 and the first connecting tube The liquid in line segments between mouth 311 is discharged by the 3rd control valve 5;
5th step: open the second control valve 4, closes the 3rd control valve 5, and the first control valve 1 is switched to Air port 121, public port 11 connects with air port 121;
6th step: fluid driver 6 forward drive works, until connecting public port 11 and first Liquid to be sampled in line segments between the mouth of pipe 311 all imports in reaction analytical equipment 2;
7th step: repeat the above-mentioned first step to the 6th step, can be by the distribution end of same first control valve 1 The distribution of mouth 12 or other the first control valve 1 liquid corresponding to port 12 amount on demand is transported to In reaction analytical equipment 2.
Metering liquid volume is that the work process of A is as follows:
The first step: the first control valve 1 is switched to the distribution port 12 of liquid to be taken, public port 11 It is connected with the distribution port 12 of liquid to be taken, opens the second control valve 4;
Second step: controlling the work of fluid driver 6 forward drive, the distribution port 12 of liquid to be taken is right The liquid answered is inhaled in gauge line 3 under the driving of fluid driver 6, when detector of liquid 7 is examined When measuring liquid, fluid driver 6 quits work, or quits work after time delay a period of time;
3rd step: close the second control valve 4, opens the 4th control valve 9;
4th step: fluid driver 6 reverse drive works, by detector of liquid 7 and the second connecting tube The liquid in line segments between mouth 312 is discharged by the 4th control valve 9;
5th step: open the second control valve 4, closes the 4th control valve 9, the first control valve 1 is switched To air port 121, public port 11 connects with air port 121;
6th step: fluid driver 6 forward drive works, until connecting public port 11 and second Liquid to be sampled in line segments between the mouth of pipe 312 all imports in reaction analytical equipment 2;
7th step: repeat the above-mentioned first step to the 6th step, can be by the distribution end of same first control valve 1 The distribution of mouth 12 or other the first control valve 1 liquid corresponding to port 12 amount on demand is transported to In reaction analytical equipment 2.
By changing the most isometric gauge line 3 or adjusting the position of detector of liquid 7, can regulate Enter the liquid volume in reaction analytical equipment 2.
The work process of accurate measurement more than analyzing the liquid that metering device realizes different volumes is with bag Illustrate as a example by including detector of liquid, when analyzing metering device and being not provided with detector of liquid, During taking liquid, can carry out taking liquid according to the feed liquor time set.
The analysis metering device of the embodiment of the present invention is by arranging the first control valve, the second control valve, meter Buret, reaction analytical equipment and fluid driver are connected in series, and arrange the multiple of the first control valve Distribution port includes an air port being connected with air so that the present invention is in feed liquor or discharge opeing Time, liquid moves the most in the same direction, it is to avoid sequential injection formula flow path system must pass through liquid storage The defect of unit transfer liquid, when decreasing feed liquor, length and the tube wall surface of stream flows through conduit amass, Thus decrease liquid on tube wall, remain the probability of liquid film or wall built-up, improve the precision of feed liquor, especially Which raises the feed liquor precision when micro-liquid inlet volume (such as below 0.1ml);And owing to gauge line is little The structure design of size: gauge line is the pipe that internal diameter is less than 4mm so that liquid utilizes liquid in tubule Liquid can upwards the most successfully be flowed in reaction analytical equipment by surface tension force and viscosity, so that Liquid will not be along tube wall generation refluence phenomenon;On the other hand by arranging gauge line, its one end is passed through Second control valve is connected with public port, and the other end is connected with first passage mouth, on the tube wall of gauge line Being provided with the first connection mouth of pipe, first connects the mouth of pipe connects the first sewer pipe by the 3rd control valve, makes The present invention when discharging waste liquid, it is only necessary to close the second control valve and to open the 3rd control valve the most permissible Very easily the waste liquid in gauge line and the waste liquid in reaction analytical equipment are discharged smoothly.
The present invention also provides for a kind of liquid analysis system, comprising:
First control valve, it includes public port and alternatively can connect many with described public port Individual distribution port, the plurality of distribution port includes an air port being connected with air;
Reaction analytical equipment, it has first passage mouth and second channel mouth;
Gauge line, its one end is connected with described public port by the second control valve, and the other end is with described First passage mouth connects, and the tube wall of described gauge line is provided with the first connection mouth of pipe, and described first even Adapter mouth connects the first sewer pipe by the 3rd control valve, and wherein, described gauge line is that internal diameter is less than 4mm Pipe;
Fluid driver, is connected with described reaction analytical equipment;
Control circuit, be used for controlling described first control valve, described reaction analytical equipment, described second The unlatching of the work of control valve, described 3rd control valve and described fluid driver and stopping;
Wherein, described first control valve, described reaction analytical equipment, described second control valve, described 3rd control valve and described fluid driver are all connected with described control circuit.
The liquid analysis system of the embodiment of the present invention is by arranging the first control valve, the second control valve, meter Buret, reaction analytical equipment and fluid driver are connected in series, and arrange the multiple of the first control valve Distribution port includes an air port being connected with air so that the present invention is in feed liquor or discharge opeing Time, liquid moves the most in the same direction, it is to avoid sequential injection formula flow path system must pass through liquid storage The defect of unit transfer liquid, when decreasing feed liquor, length and the tube wall surface of stream flows through conduit amass, Thus decrease liquid on tube wall, remain the probability of liquid film or wall built-up, improve the precision of feed liquor, especially Which raises the feed liquor precision when micro-liquid inlet volume (such as below 0.1ml);And owing to gauge line is little The structure design of size: gauge line is the pipe that internal diameter is less than 4mm so that liquid utilizes liquid in tubule Liquid can upwards the most successfully be flowed in reaction analytical equipment by surface tension force and viscosity, so that Liquid will not be along tube wall generation refluence phenomenon;On the other hand by arranging gauge line, its one end is passed through Second control valve is connected with public port, and the other end is connected with first passage mouth, on the tube wall of gauge line Being provided with the first connection mouth of pipe, first connects the mouth of pipe connects the first sewer pipe by the 3rd control valve, makes The present invention when discharging waste liquid, it is only necessary to close the second control valve and to open the 3rd control valve the most permissible Very easily the waste liquid in gauge line and the waste liquid in reaction analytical equipment are discharged smoothly.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any form On restriction, any simple modification above example made according to the technical spirit of the present invention, etc. With change and modification, all still fall within the range of technical solution of the present invention.

Claims (10)

1. an analysis metering device, it is characterised in that including:
First control valve, it includes public port and alternatively can connect many with described public port Individual distribution port, the plurality of distribution port includes an air port being connected with air;
Reaction analytical equipment, it has first passage mouth and second channel mouth;
Gauge line, its one end is connected with described public port by the second control valve, and the other end is with described First passage mouth connects, and the tube wall of described gauge line is provided with the first connection mouth of pipe, and described first even Adapter mouth connects the first sewer pipe by the 3rd control valve, and wherein, described gauge line is that internal diameter is less than 4mm Pipe;
Fluid driver, is connected with described reaction analytical equipment.
Analysis metering device the most according to claim 1, it is characterised in that
The internal diameter of described gauge line is in the range of 0.2mm-2mm.
Analysis metering device the most according to claim 1 and 2, it is characterised in that
The internal diameter of described reaction analytical equipment is more than 6 millimeters.
Analysis metering device the most according to claim 3, it is characterised in that also include:
Detector of liquid, described detector of liquid is arranged on described gauge line.
Analysis metering device the most according to claim 4, it is characterised in that
Described detector of liquid be arranged on described gauge line particularly as follows:
Described detector of liquid is arranged on described first passage mouth and described first and connects the pipe between the mouth of pipe On section.
Analysis metering device the most according to claim 5, it is characterised in that also include:
Connecting tube;
Described fluid driver be connected with described reaction analytical equipment particularly as follows:
Described fluid driver is connected with described second channel mouth by described connecting tube.
Analysis metering device the most according to claim 5, it is characterised in that
Described fluid driver be connected with described reaction analytical equipment particularly as follows:
Described fluid driver is arranged in the line segments of described gauge line, and described second channel mouth is with big Gas phase connects.
Analysis metering device the most according to claim 7, it is characterised in that
Described fluid driver be arranged in the line segments of described gauge line particularly as follows:
Described fluid driver is arranged on the pipeline between described detector of liquid and described first passage mouth Duan Zhong;Or,
Described fluid driver is arranged on described detector of liquid and described first and connects the pipe between the mouth of pipe In section;Or,
Described fluid driver is arranged on described first and connects the pipe between the mouth of pipe and described second control valve In section.
Analyze metering device the most according to claim 1 or 5, it is characterised in that also include:
At least one the 4th control valve;
It is additionally provided with at least one on the tube wall of described gauge line and second connects mouth of pipe, and be positioned at described the One connects on the tube wall between the mouth of pipe and described second control valve;
At least one second connection mouth of pipe described connects second by least one the 4th control valve described and gives up Liquid pipe.
10. a liquid analysis system, it is characterised in that comprising:
First control valve, it includes public port and alternatively can connect many with described public port Individual distribution port, the plurality of distribution port includes an air port being connected with air;
Reaction analytical equipment, it has first passage mouth and second channel mouth;
Gauge line, its one end is connected with described public port by the second control valve, and the other end is with described First passage mouth connects, and the tube wall of described gauge line is provided with the first connection mouth of pipe, and described first even Adapter mouth connects the first sewer pipe by the 3rd control valve, and wherein, described gauge line is that internal diameter is less than 4mm Pipe;
Fluid driver, is connected with described reaction analytical equipment;
Control circuit, be used for controlling described first control valve, described reaction analytical equipment, described second The unlatching of the work of control valve, described 3rd control valve and described fluid driver and stopping;
Wherein, described first control valve, described reaction analytical equipment, described second control valve, described 3rd control valve and described fluid driver are all connected with described control circuit.
CN201510177534.6A 2015-04-16 2015-04-16 A kind of analysis metering device and liquid analysis system Active CN104730216B (en)

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CN104764860B (en) * 2015-04-16 2017-01-04 肖巍 A kind of analysis metering device and liquid analysis system
CN106324266B (en) * 2016-08-09 2019-05-31 广州市怡文环境科技股份有限公司 The flow path control system and flow path control method of automatic analyzer

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