CN108535057A - A kind of Multi-way liquid sampling device - Google Patents
A kind of Multi-way liquid sampling device Download PDFInfo
- Publication number
- CN108535057A CN108535057A CN201810172697.9A CN201810172697A CN108535057A CN 108535057 A CN108535057 A CN 108535057A CN 201810172697 A CN201810172697 A CN 201810172697A CN 108535057 A CN108535057 A CN 108535057A
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- China
- Prior art keywords
- liquid
- solution
- electromagnetic valve
- sampling device
- shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Abstract
The present invention discloses a kind of Multi-way liquid sampling device, belongs to chemical analysis and quantitative analysis tech field, and various test solution are added for realizing automatic ration in the automation or analysis test of liquid feeding system in instrument and meter.Multi-way liquid sampling device can be controlled by microcomputer, motor moving axis bar moves up and down, the lower end of shaft is equipped with piston, with pump bowl slide fit, when shaft moves upwards, it opens and is taken the liquid inlet electromagnetic valve of solution, ambient pressure presses against that the solution passes sequentially through feed liquor battery valve, mostly logical block enters in quantity tube；When shaft moves downward, feed liquor battery valve is closed, opens out solution battery valve, the solution of absorption is injected into specified container from liquid outlet through liquid outlet electromagnetic valve, completes a kind of sampling of solution.The how logical block of the device can be connected with multiple feed liquor battery valves, to realize pipetting respectively for a variety of solution.The apparatus structure is simple, and stability is good, can be widely used in the automation liquid feeding system and analysis test of instrument and meter.
Description
Technical field
The present invention relates to a kind of Multi-way liquid sampling devices, belong to the technical field of chemical analysis and quantitative analysis.
Background technology
Multi-way liquid sampling device is a kind of dress that is automatic, contactless, can quantitatively pipetting plurality of liquid respectively
It sets, various test solution is added for realizing automatic ration in the automation or analysis test of liquid feeding system in instrument and meter.
In conventional chemical analysis, pipettes solution and typically pipette manually, it is time-consuming and laborious, it is also possible to lead to measurement error, influence in real time
Monitoring.With the quickening of industrial or agricultural modernization, higher and higher, the traditional hand of accuracy, the timeliness of test data is analyzed
Work test has been unable to meet present needs, this just needs a kind of multichannel liquid sampling dress adapting to modern chemical analysis requirement
It sets.
Invention content
The purpose of the present invention is develop it is a kind of it is simple in structure, stability is good, can pipette the sampler of a variety of solution automatically,
The automatic liquid-feeding system in analytical instrument is can be widely applied to, main problem of the existing technology is solved, it is strong to mitigate labour
Degree improves the accuracy and timeliness of analysis test data, realizes the on-line monitoring of analytical instrument instrument.
The Method And Principle of the present invention：Motor does movement upward or downward in the control lower band moving axis bar of microcontroller, works as axis
When bar moves upwards, make the pressure reduction in pump bowl, opens the corresponding liquid inlet electromagnetic valve of taken solution（It simultaneously closes off other
All solenoid valves）, ambient pressure presses against that the solution passes sequentially through its liquid inlet electromagnetic valve, mostly logical block enters in quantity tube, when
When reaching required volume, liquid level detector sends a signal to motor, and motor stopping is allowed to act, and so that shaft stopping is run up, closes
Liquid inlet electromagnetic valve is closed, liquid outlet electromagnetic valve is opened, meanwhile, motor moving axis bar is run down, and the solution of extraction is injected into specified
Container in, the sampling task of the first solution is completed, when needing to extract second or when the third solution, be corresponded to as long as opening
Liquid inlet electromagnetic valve, repeat the above steps, realize the sampling work of a variety of solution.
The technical parameter of the present invention：The amount of solution that the Multi-way liquid sampling device is extracted, be decided by pump bowl capacity and
The size of quantity tube capacity；Extracting 5 ~ 10ml/min of speed, on quantity tube the bore at dress liquid level detector position 3 ~
When 8mm, its accuracy after testing reaches 0.05ml；1 ~ 3mm of flow path bore dia of liquid in more logical blocks；Pump bowl and piston
Service life is more than 10,000 times.
The present invention Multi-way liquid sampling device include：Motor, shaft, piston, pump bowl, connector, quantity tube, liquid
Bit detector, mostly logical block, liquid inlet electromagnetic valve, liquid outlet electromagnetic valve.Motor is using through, fixed shaft type or external drive formula straight line
Motor can provide about 50 pounds of thrust；Shaft uses metal or rigid plastics；Piston using corrosion-resistant, friction coefficient compared with
Small plastics, the size of diameter and the internal diameter slide fit of pump bowl；Pump bowl is made of hard glass or plastics, and volume is big
It is small depending on maximum sampling amount；Connector uses corrosion resistant plastics；Quantity tube is transparent more than 3mm using internal diameter
Horminess glass tube；Infrared or capacitance principle may be used in liquid level detector；Mostly logical block uses corrosion resistant plastics, intermediate liquid
For body flow diameter in 1 ~ 3mm, upper end has liquid pumping hole, lower end to have liquid outlet, left and right ends or front to have multiple inlets；Feed liquor
Solenoid valve, liquid outlet electromagnetic valve are all made of corrosion resistant miniature electromagnetic valve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
According to Fig. 1, a kind of Multi-way liquid sampling device, it includes：Motor（1）, shaft（2）, piston（3）, take out
Inflator（4）, connector（5）（8）, quantity tube（6）, liquid level detector（7）, mostly logical block（9）, liquid inlet electromagnetic valve（15）（16）, go out
Liquid electromagnetic valve（18）.Motor is connect with shaft, and under the control of microcomputer, motor moving axis bar moves up and down, the lower end of shaft
Equipped with piston, with pump bowl slide fit, the lower end of pump bowl and the upper end of quantity tube are connected by connector (5), and mostly logical block exists
Below quantity tube, the upper end liquid pumping hole（10）Pass through connector with the lower end of quantity tube（8）Connection, inlet（11）（12）Point
Not and liquid inlet electromagnetic valve（15）、（16）It is connected, liquid outlet（19）With liquid outlet electromagnetic valve（18）It is connected, the other end of liquid inlet electromagnetic valve
With by pumping solution（20）、（21）It is connected.When shaft moves upwards, the pressure reduction in pump bowl, open taken solution into
Liquid electromagnetic valve, ambient pressure press against that the solution passes sequentially through feed liquor battery valve, mostly logical block enters in quantity tube, amount of solution it is big
It is small to be controlled by liquid level detector, when shaft moves downward, feed liquor battery valve is closed, solution battery valve is opened out, the molten of absorption
Liquid is injected into specified container from liquid outlet through liquid outlet electromagnetic valve, completes a kind of sampling process of solution.
Claims (5)
1. a kind of Multi-way liquid sampling device, it includes motor（1）, shaft（2）, piston（3）, pump bowl（4）, the first connector
（5）, the second connector（8）, quantity tube（6）, liquid level detector（7）, mostly logical block（9）, the first liquid inlet electromagnetic valve（15）, second into
Liquid electromagnetic valve（16）, liquid outlet electromagnetic valve（18）, it is characterised in that：Mostly logical block（9）Liquid pumping hole（10）It is logical with the lower end of quantity tube
Cross the second connector（8）It is connected, mostly logical block（9）The first inlet（11）, the second inlet（12）Respectively with the first feed liquor
Solenoid valve（15）, the second liquid inlet electromagnetic valve（16）It is connected, the first solution（20）Or second solution（21）In shaft（2）Upward
Quantity tube is inhaled into motion process（6）In；When reaching required volume, liquid level detector（7）Send a signal to motor（1）,
Shaft（2）Stopping is run up, and is run down, and liquid inlet electromagnetic valve is simultaneously closed off, and opens the liquid outlet with more logical blocks（19）Phase
Liquid outlet electromagnetic valve even（18）, the solution of absorption is injected into specified container, realizes contactless automatic sampling.
2. according to the Multi-way liquid sampling device described in claim 1, it is characterised in that piston is assembled in the lower end of shaft, and
It is placed in pump bowl and forms automatic gas extraction device, the lower end of pump bowl and the upper end of quantity tube are connected by the first connector (5)
It connects, size and the pump bowl internal diameter slide fit of piston.
3. according to the Multi-way liquid sampling device described in claim 1, it is characterised in that mostly logical block（9）Upper end have liquid pumping hole
（10）, left end has the second inlet（12）, right end has the first inlet（11）, there is liquid outlet in lower end（19）.
4. according to the Multi-way liquid sampling device described in claim 1, it is characterised in that quantity tube（6）On can be equipped with it is multiple
Liquid level detector realizes the solution sampling of different volumes.
5. according to the Multi-way liquid sampling device described in claim 1, it is characterised in that shaft（2）Up and down motion by motor
（1）It drives, realizes automation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172697.9A CN108535057A (en) | 2018-03-01 | 2018-03-01 | A kind of Multi-way liquid sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172697.9A CN108535057A (en) | 2018-03-01 | 2018-03-01 | A kind of Multi-way liquid sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108535057A true CN108535057A (en) | 2018-09-14 |
Family
ID=63485890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810172697.9A Withdrawn CN108535057A (en) | 2018-03-01 | 2018-03-01 | A kind of Multi-way liquid sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108535057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574045A (en) * | 2018-12-10 | 2019-04-05 | 中盐枣阳盐化有限公司 | A kind of nitre slurry separating, washing device and its separation and washing method |
-
2018
- 2018-03-01 CN CN201810172697.9A patent/CN108535057A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574045A (en) * | 2018-12-10 | 2019-04-05 | 中盐枣阳盐化有限公司 | A kind of nitre slurry separating, washing device and its separation and washing method |
| CN109574045B (en) * | 2018-12-10 | 2021-10-22 | 中盐枣阳盐化有限公司 | Nitrate slurry separation and washing device and separation and washing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180914 |
|
| WW01 | Invention patent application withdrawn after publication |