CN209280390U - A kind of sample injector for environmental gas precise quantitative - Google Patents
A kind of sample injector for environmental gas precise quantitative Download PDFInfo
- Publication number
- CN209280390U CN209280390U CN201821890201.3U CN201821890201U CN209280390U CN 209280390 U CN209280390 U CN 209280390U CN 201821890201 U CN201821890201 U CN 201821890201U CN 209280390 U CN209280390 U CN 209280390U
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- air passage
- passage block
- sample injector
- sample
- Prior art date
- 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.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of sample injector for environmental gas precise quantitative of the utility model, is related to technical field of analytical instruments.Comprising filter, the first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve are passivated air passage block, and quantitative loop, aspiration pump is connected in a manner of pipeline and control circuit is constituted.The use of the sample injector of the utility model operates, it further include six control flows, that is sample phase, the sample introduction stage, the cavity pressure period during pipeline-cleaning, filter blowback stage during pipeline-cleaning, the cavity repressurization stage during pipeline-cleaning, the quantitative loop rinse stage during pipeline-cleaning.The utility model proposes a kind of micromations, modularization, low-power consumption, the sampling device of low cost, it is ensured that the accurate quantitative analysis of sample acquisition, stability, repeatability, to the following analysis instrument, especially online and portable analysers preprocessing system, provides solid technology material base, has very far-reaching reference reference significance.
Description
Technical field
The utility model relates to technical field of analytical instruments, refer specifically to a kind of sample introduction for environmental gas precise quantitative
Device.
Background technique
Sample injector is the preprocessing system of analysis instrument.Its major function is the acquisition for completing to analyze sample, and sample
To the stability of analysis instrument, repeatability is most important for accurate quantitative analysis and sample introduction in collection process.Currently, in the acquisition of sample
In the process, six-way valve or ten-way valve are used mostly for site environment detecting instrument, especially portable analysers,
Realize along with switch electromagnetic valve etc. acquisition and the sample introduction of sample.This method is not only at high cost, but also in bad environments
In the case where, being easy, which pollutes six-way valve or ten-way valve, even blocks.This not only adds the maintenance cost of instrument, and it is right
In the stability of analysis instrument, repeatability is very unfavorable.
Utility model content
The purpose of this utility model overcomes missing and deficiency of the existing technology, proposes a kind of for site environment detection
The accurate quantitative sampling of instrument and sample injector.
A kind of sample injector for environmental gas precise quantitative of the utility model includes filter, the first solenoid valve, second
Solenoid valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve, are passivated air passage block, quantitative loop, and aspiration pump is connected in a manner of pipeline
It connects and control circuit board is constituted.
Wherein, first solenoid valve one end is connected to the filter, and the sample injector entrance of the other end and passivation air passage block connects
It connects；
Second solenoid valve one end is connect with aspiration pump, and the other end is connect with the drain of passivation air passage block；
Third solenoid valve one end is connect with the drain of passivation air passage block, and the analysis instrument of the other end and passivation air passage block enters
Mouth connection；
4th solenoid valve one end is connect with the carrier gas inlet of passivation air passage block, the analysis instrument of the other end and passivation air passage block
Entrance connection；
5th solenoid valve one end is connect with the carrier gas inlet of passivation air passage block, and the sample injector of the other end and passivation air passage block enters
Mouth connection；
Described quantitative loop one end is connect with the sample injector entrance of passivation air passage block, the drain of the other end and passivation air passage block
Connection；
The passivation air passage block uses aluminium alloy or stainless steel material, and passes through Passivation Treatment.The quantitative loop
For stainless steel material, and pass through Passivation Treatment.
A kind of sample injector for environmental gas precise quantitative of the utility model further includes six control streams using operation
Journey, i.e. sample phase, sample introduction stage, the cavity pressure period during pipeline-cleaning, the filter during pipeline-cleaning are anti-
It blows the stage, the cavity repressurization stage during pipeline-cleaning, the quantitative loop rinse stage during pipeline-cleaning.
The sample phase, the first solenoid valve, second solenoid valve, the 4th solenoid valve are opened, third solenoid valve, the 5th electromagnetism
Valve is closed, and aspiration pump is opened, environmental gas by sampler entrance via being vented after filter, quantitative loop, aspiration pump, carrier gas then by
Carrier gas inlet enters analysis instrument entrance.
The sample introduction stage, the first solenoid valve, second solenoid valve, the 4th solenoid valve are closed, third solenoid valve, the 5th electromagnetism
Valve is opened, and aspiration pump is closed, and carrier gas enters from carrier gas inlet, is brought the under test gas in quantitative loop into analysis instrument and is examined
It surveys.
Cavity pressure period during the pipeline-cleaning, the first solenoid valve, second solenoid valve, third solenoid valve,
Four solenoid valves are closed, and the 5th solenoid valve is opened, and aspiration pump is in close state, and carrier gas enters quantitative loop from carrier gas inlet, and right
Cavity pressurizes.
Filter blowback stage during the pipeline-cleaning, second solenoid valve, third solenoid valve, the 4th solenoid valve close
It closes, the first solenoid valve, the 5th solenoid valve are opened, and pressurization carrier gas is discharged via sample injector entrance, thus to filter blowback.
Cavity repressurization stage during the pipeline-cleaning, the first solenoid valve, second solenoid valve, third electromagnetism
Valve, the 4th solenoid valve are closed, and the 5th solenoid valve is opened, and aspiration pump is in close state, and carrier gas enters quantitative loop from carrier gas inlet,
And repressurization is carried out to cavity.
Quantitative loop rinse stage during the pipeline-cleaning, the first solenoid valve, third solenoid valve are closed, the 4th electromagnetism
Valve is closed, and second solenoid valve, the 5th solenoid valve are opened, and pressurization carrier gas is discharged via drain, to be rinsed to quantitative loop.
The utility model has the beneficial effects that having broken the defect in existing sampling technique, a kind of micromation, mould are provided
Block, low-power consumption, inexpensive sampling device, it is ensured that the accurate quantitative analysis of sample acquisition especially exists to the following analysis instrument
The preprocessing system of line and portable analysers has very far-reaching reference reference significance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for environmental gas precise quantitative sample injector of the utility model.
Wherein:
1 --- filter；
21 --- the first solenoid valve；
22 --- second solenoid valve；
23 --- third solenoid valve；
24 --- the 4th solenoid valve；
25 --- the 5th solenoid valve；
3 --- passivation air passage block；
4 --- quantitative loop；
5 --- aspiration pump.
Specific embodiment
The utility model is further described below in conjunction with drawings and examples
A kind of sample injector (as shown in Figure 1) for environmental gas precise quantitative of the utility model includes filter 1, the
One solenoid valve 21, second solenoid valve 22, third solenoid valve 23, the 4th solenoid valve 24, the 5th solenoid valve 25 are passivated air passage block 3, fixed
Amount ring 4, aspiration pump 5 make piping connection and control circuit board is constituted.
Wherein, described first solenoid valve, 21 one end is connect with filter 1, and the sample injector of the other end and passivation air passage block 3 enters
Mouth connection.
22 one end of second solenoid valve is connect with aspiration pump 5, and the other end is connect with the drain of passivation air passage block 3.
23 one end of third solenoid valve is connect with the drain of passivation air passage block 3, the analyzer of the other end and passivation air passage block 3
The connection of device entrance.
4th solenoid valve, 24 one end is connect with the carrier gas inlet of passivation air passage block 3, the analysis of the other end and passivation air passage block 3
The connection of instrument entrance.
5th solenoid valve, 25 one end is connect with the carrier gas inlet of passivation air passage block 3, the sample introduction of the other end and passivation air passage block 3
The connection of device entrance.
Described 4 one end of quantitative loop is connect with the sample injector entrance of passivation air passage block 3, and the other end is put with passivation air passage block 3
It eats dishes without rice or wine to connect.
The utility model includes six control flows: sample phase, sample introduction stage, the cavity pressurization during pipeline-cleaning
Stage, the filter blowback stage during pipeline-cleaning, the cavity repressurization stage during pipeline-cleaning, pipeline-cleaning
Quantitative loop rinse stage in the process.
Now it is described below:
Sample phase, in this process, the first solenoid valve 21, second solenoid valve 22, the 4th solenoid valve 24 are opened, third electricity
Magnet valve 23, the 5th solenoid valve 25 close, aspiration pump 5 open, environmental gas by sampler entrance via filter 1, quantitative loop 4,
It is vented after aspiration pump 5.Carrier gas then enters analysis instrument entrance by carrier gas inlet.
Sample introduction stage, in this process, the first solenoid valve 21, second solenoid valve 22, the 4th solenoid valve 24 close, third electricity
Magnet valve 23, the 5th solenoid valve 25 are opened, and aspiration pump 5 is closed, and carrier gas enters from carrier gas inlet, by the under test gas in quantitative loop 4
Analysis instrument is brought into be detected.
Shown in the cavity pressure period during pipeline-cleaning, in this process, the first solenoid valve 21, second solenoid valve
22, third solenoid valve 23, the 4th solenoid valve 24 are closed, and the 5th solenoid valve 25 is opened, and aspiration pump 5 is in close state, carrier gas from
Carrier gas inlet enters quantitative loop 4, and pressurizes to cavity.
The filter blowback stage during pipeline-cleaning, in this process, second solenoid valve 22, third solenoid valve 23,
4th solenoid valve 24 is closed, and the first solenoid valve 21, the 5th solenoid valve 25 are opened, and pressurization carrier gas is discharged via sample injector entrance, from
And to sample injector entrance and filter blowback.
The cavity repressurization stage during pipeline-cleaning, in this process, the first solenoid valve 21, second solenoid valve
22, third solenoid valve 23, the 4th solenoid valve 24 are closed, and the 5th solenoid valve 25 is opened, and aspiration pump 5 is in close state, carrier gas from
Carrier gas inlet enters quantitative loop 4, and carries out repressurization to cavity.
Quantitative loop rinse stage during pipeline-cleaning, in this process, the first solenoid valve of switch electromagnetic valve 21, third
Solenoid valve 23 is closed, and the 4th solenoid valve 24 is closed, and second solenoid valve 22, the 5th solenoid valve 25 are opened, and carrier gas of pressurizeing is via emptying
Mouth discharge, to be rinsed to quantitative loop 4.
Exist in the case where bad environments in conclusion the utility model overcomes existing sampling technique, is easy to make six
Port valve or ten-way valve the pollution even defect of blocking propose a kind of micromation, modularization, low-power consumption, inexpensive sample introduction dress
It sets, it is ensured that the accurate quantitative analysis of sample acquisition, stability, repeatability, to the following analysis instrument, especially online and portable point
The preprocessing system of analyzer device provides solid technology material base, has very far-reaching reference reference significance.
Claims (3)
1. a kind of sample injector for environmental gas precise quantitative, which is characterized in that include filter (1), the first solenoid valve
(21), second solenoid valve (22), third solenoid valve (23), the 4th solenoid valve (24), the 5th solenoid valve (25) are passivated air passage block
(3), quantitative loop (4), aspiration pump (5) is connected in a manner of pipeline and control circuit is constituted；
Wherein, described first solenoid valve (21) one end is connect with filter (1), the sample injector of the other end and passivation air passage block (3)
Entrance connection；
Described second solenoid valve (22) one end is connect with aspiration pump (5), and the other end is connect with the drain of passivation air passage block (3)；
Described third solenoid valve (23) one end is connect with the drain of passivation air passage block (3), the other end and passivation air passage block (3)
The connection of analysis instrument entrance；
4th solenoid valve (24) one end is connect with the carrier gas inlet of passivation air passage block (3), the other end and passivation air passage block (3)
Analysis instrument entrance connection；
5th solenoid valve (25) one end is connect with the carrier gas inlet of passivation air passage block (3), the other end and passivation air passage block (3)
Sample injector entrance connection；
Described quantitative loop (4) one end is connect with the sample injector entrance of passivation air passage block (3), the other end and passivation air passage block (3)
Drain connection.
2. a kind of sample injector for environmental gas precise quantitative as described in claim 1, which is characterized in that the passivating gas
Road block (3) uses aluminium alloy or stainless steel material, and passes through Passivation Treatment.
3. a kind of sample injector for environmental gas precise quantitative as described in claim 1, which is characterized in that described quantifies
Ring (4) is stainless steel material, and passes through Passivation Treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890201.3U CN209280390U (en) | 2018-11-16 | 2018-11-16 | A kind of sample injector for environmental gas precise quantitative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890201.3U CN209280390U (en) | 2018-11-16 | 2018-11-16 | A kind of sample injector for environmental gas precise quantitative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209280390U true CN209280390U (en) | 2019-08-20 |
Family
ID=67601597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821890201.3U Active CN209280390U (en) | 2018-11-16 | 2018-11-16 | A kind of sample injector for environmental gas precise quantitative |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209280390U (en) |
-
2018
- 2018-11-16 CN CN201821890201.3U patent/CN209280390U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102401834B (en) | Multi-channel on-line sampling and sample introducing method for high-temperature high-thickness liquid material | |
| CN204302222U (en) | Zirconium oxide analyzer | |
| CN105388309B (en) | The automatic quick determination method of trace iron ions and system and application in Power Plant Water Vapor | |
| CN101493471B (en) | Water sample on-line monitoring and overproof sample holding apparatus and operation method thereof | |
| CN102435462A (en) | Intelligent waste water sampling control system and sampling control method thereof | |
| CN102879506A (en) | Automatic gas sampling device and using method thereof | |
| CN201035023Y (en) | Multiple automatic flux box sample-taking analytical apparatus | |
| CN201615873U (en) | Reagent-free multi-parameter automatic on-line water quality monitoring system | |
| CN109520993B (en) | Micro-fluidic detection device and method for food surface residues based on Raman spectrum | |
| CN209280390U (en) | A kind of sample injector for environmental gas precise quantitative | |
| CN201034987Y (en) | Gas chromatograph gas analysis twice sample introduction device | |
| CN111947998A (en) | Fixed pollution source VOCs sampling device, system and method | |
| CN206725589U (en) | A kind of long-range Quality Control instrument of automatic water quality monitoring | |
| CN109387404A (en) | A kind of sample injector and control for environmental gas precise quantitative | |
| CN206832780U (en) | A kind of wasted nickel catalyst device | |
| CN202974750U (en) | Separation and enrichment system | |
| CN102980789B (en) | Water petroleum pollutant on-line enrichment device | |
| CN108732226A (en) | Thioether class gas-detecting device and method | |
| CN202177577U (en) | Sample introduction device for atomic fluorescence spectroscopy | |
| CN101806789B (en) | Analyzer for analyzing concentration of inorganic carbon in water body | |
| CN205262802U (en) | Gas analysis sampling device | |
| CN208060204U (en) | A kind of Multi-channel sample device of Water Test Kits | |
| CN103424528B (en) | Device and method for detecting white spirit varieties | |
| CN201867398U (en) | On-line detecting instrument for concentration of benzo(a)pyrene | |
| CN207556954U (en) | Static state dilution instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |