CN202793892U - Stirring device in automatic sample injector - Google Patents
Stirring device in automatic sample injector Download PDFInfo
- Publication number
- CN202793892U CN202793892U CN 201220456413 CN201220456413U CN202793892U CN 202793892 U CN202793892 U CN 202793892U CN 201220456413 CN201220456413 CN 201220456413 CN 201220456413 U CN201220456413 U CN 201220456413U CN 202793892 U CN202793892 U CN 202793892U
- Authority
- CN
- China
- Prior art keywords
- valve
- air inlet
- draft tube
- stirring apparatus
- sampling
- 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.)
- Ceased
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a stirring device in an automatic sample injector, which relates to the technical field of chemical analysis instruments, and aims to solve the problem that when the existing automatic sample injector carries out sampling on long-placed solid-liquid layered samples to be determined, the sampling is non-uniform so that the analytical accuracy of sample detection is affected. The stirring device comprises an air inlet tube and an air inlet device, wherein the air inlet device is connected with the input end of the air inlet tube, the air inlet tube is provided with a valve 1 for controlling the switching-on/off of an air flow in a pipeline, and the output end of the air inlet tube is communicated with a test tube of the automatic sample injector. The stirring device disclosed by the utility model is especially applicable to environmental monitoring stations at all levels, sewage treatment plants, water conservancy projects, water-related affairs and scientific research institutes, and carries out automatic sampling on water samples in industrial pollution source discharge outlets, rivers, lakes, seas and the like.
Description
Technical field
The utility model relates to the chemical analysis instrument technical field, relates in particular to the stirring apparatus in a kind of automatic sampler.
Background technology
The water sample automatic sampler is collection flow measurement and the integrated multifunctional monitoring instrument of water sampling, be applicable to environmental monitoring stations at different levels, sewage treatment plant, water conservancy, water utilities and scientific research institutions, the water samples such as industrial pollution source floss hole, river, river, lake, sea are sampled automatically.Auto injection and hybrid reaction process have accurately been controlled the sample introduction ratio of sample and reagent when realizing robotization, guarantee reliability, the repeatability and stable of measurement result.
Automatic sampling apparatus of the prior art has replaced manual sample introduction and has varied, and has improved automaticity and the analysis precision of lab analysis work.Yet, in actual water analysis work, after the sample to be determined that contains the materials such as solid particle has been placed of a specified duration, solid-liquid two phase stratification phenomenon often appears, when the sampling needle of automatic sampling apparatus is drawn this sample to be determined, sampling will be inhomogeneous, will cause sample sample representation variation, and then affect the sample detection analysis precision.
The utility model content
In existing automatic sampling apparatus, when being long placed in the sample to be determined sampling of rear solid-liquid layering, the sample representation variation, and then affect the problem of sample detection analysis precision, the purpose of this utility model provides the stirring apparatus in a kind of automatic sampler.
The technical scheme that its technical matters that solves the utility model adopts is: described stirring apparatus comprises a draft tube and the admission gear that is connected with the input end of described draft tube, the output terminal of described draft tube communicates with the test tube of described automatic sampler, and described draft tube is provided with a valve one for pilot piping air-flow break-make.
Also be provided with a branch road that is communicated with the sampling needle of described automatic sampler on described draft tube and the pipeline that test tube communicates.
Further, also be provided with a branch road that is communicated with the sampling needle of described automatic sampler on described draft tube and the pipeline that test tube communicates.
The pipeline that described draft tube is communicated with described sampling needle is provided with valve two.
Described valve is retaining valve or pinch valve.
Comparatively preferably, described valve one is reversal valve, and described reversal valve is arranged at the intersection of described draft tube and described branch road.
Described admission gear is air pump, blower fan or air compressor.
Effect of the present utility model is:
One, stirring apparatus of the present utility model adopts the pneumatic stirring mode, need not mechanical stirring device, magnetic agitation and ultrasonic agitation etc., the input of having saved the electronic energy, and because there not being mechanical stirring device to immerse in the sample, avoided sample secondary pollution phenomenon; Avoided also simultaneously that ultrasonic agitation produces to the disagreeableness ear-piercing noise of people.
Two, stirring setting of the present utility model is provided with the valve that can control gas flow, and it is simple in structure, and control is convenient, can be implemented in line traffic control, has further improved automaticity and the analysis precision of analytical work.And this stirring apparatus can support the use with multiple analytical instrument, and product is widely applicable.
Three, Pneumatic mixing device of the present utility model so that sampling evenly, extends to the range of application of automatic sampler with the inhomogeneous suspension water body of particle and can measure from even sample analysis, has enlarged the scope of application of product.
Four, stirring apparatus of the present utility model can be removed the volatility interfering material in the testing sample, makes analysis result more accurate.If when follow-up sample determination, volatile matter has interference, can reach the removal purpose by prolonging the air blowing mixing time.As, during Gas-phase Molecular Absorption Spectrometry sulfide, volatile organic matter disturbs very serious, and using this product then can be clean with there being the volatile organic matter of interference to purge.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples;
Fig. 1 is the partial structurtes synoptic diagram of embodiment one;
Fig. 2 is the partial structurtes synoptic diagram of embodiment two;
Fig. 3 is the partial structurtes synoptic diagram of embodiment three;
Fig. 4 is the partial structurtes synoptic diagram of embodiment four;
The number in the figure explanation:
100-stirring apparatus 101-draft tube
102-valve one 103-valve two
104-reversal valve 200-test tube
The 300-sampling needle
Embodiment
Below will by cited embodiment by reference to the accompanying drawings, describe technology contents of the present utility model and feature in detail.For sake of convenience, hereinafter described " on ", D score is consistent with the upper and lower direction of accompanying drawing, but this can not become the restriction of technical solutions of the utility model.
Embodiment one: illustrate that in conjunction with Fig. 1 stirring apparatus in a kind of automatic sampler of the utility model, stirring apparatus 100 comprise the admission gear (not shown) that a draft tube 101 is connected with input end with draft tube 101.The output terminal of draft tube 101 is arranged in below the test tube 200 sample liquid levels to be determined, and the input end of the sampling needle 300 of automatic sampler also is arranged in below the test tube 200 sample liquid levels to be determined.Further, draft tube 101 is provided with a valve 1 for pilot piping air-flow break-make.Described valve 102 can adopt retaining valve or pinch valve.When sample to be determined is long placed in the rear phenomenon that Separation of Solid and Liquid occurs, pass into gas by draft tube 101 to test tube 200 bottoms by admission gear, the sample in the gas stirring test tube 200 has promoted convection current and the homogeneous of sample.So that sampling needle 300 sampling accuracy improve.Wherein, admission gear is air pump, blower fan, air compressor and other source of the gas etc.
Embodiment two: the stirring apparatus in a kind of automatic sampler of present embodiment is described in conjunction with Fig. 2, and different from embodiment one is that draft tube 101 is provided with a branch road that communicates with sampling needle 300 with the pipeline that test tube is communicated with.When valve 102 is opened, admission gear is sent gas into test tube 200 bottoms downwards, after sample stirs, stops to stir, and valve 102 is closed, and the sample to be determined in the test tube 200 upwards flows and enters analytical instrument through sampling needle 300.
Embodiment three: the stirring apparatus in a kind of automatic sampler of present embodiment is described in conjunction with Fig. 3, different from embodiment two is, the branch road that draft tube 101 is communicated with sampling needle 300 is provided with valve 2 103, when valve 1 is opened, admission gear is sent gas into test tube 200 bottoms downwards, after sample stirs, stops to stir, valve 1 is closed and valve 2 103 is opened, and the sample to be determined in the test tube 200 upwards flows and enters analytical instrument through sampling needle 300.
Embodiment four: the stirring apparatus in a kind of automatic sampler of present embodiment is described in conjunction with Fig. 4, and different from embodiment two and three is that draft tube 101 is provided with a reversal valve 104 with the intersection of branch road.When admission gear was inputted gas to draft tube 101, a of reversal valve 104, c port were opened, and gas flows into test tube 200 bottoms downwards and stirs sample to be determined; After stopping to stir, port a closes, and port b, c open, and the even sample in the test tube 200 is sampled pin 300 and draws and upwards flow into analytical instrument.
Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; in order to make those skilled in the art can better understand this patent content; should not be understood as the restriction to this patent protection domain; change or modify so long as disclose spiritual any being equal to of doing according to this patent, all fall into this patent protection domain.
Claims (6)
1. the stirring apparatus in the automatic sampler, it is characterized in that: described stirring apparatus comprises a draft tube and the admission gear that is connected with the input end of described draft tube, the output terminal of described draft tube communicates with the test tube of described automatic sampler, and described draft tube is provided with a valve one for pilot piping air-flow break-make.
2. stirring apparatus according to claim 1 is characterized in that: also be provided with a branch road that is communicated with the sampling needle of described automatic sampler on described draft tube and the pipeline that test tube communicates.
3. stirring apparatus according to claim 2, it is characterized in that: the pipeline that described draft tube is communicated with described sampling needle is provided with valve two.
4. according to claim 1 to the described stirring apparatus of 3 arbitrary claims, it is characterized in that: described valve is retaining valve or pinch valve.
5. stirring apparatus according to claim 2 is characterized in that: described valve one is reversal valve, and described reversal valve is arranged at the intersection of described draft tube and described branch road.
6. stirring apparatus according to claim 1, it is characterized in that: described admission gear is air pump, blower fan or air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220456413 CN202793892U (en) | 2012-09-07 | 2012-09-07 | Stirring device in automatic sample injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220456413 CN202793892U (en) | 2012-09-07 | 2012-09-07 | Stirring device in automatic sample injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793892U true CN202793892U (en) | 2013-03-13 |
Family
ID=47821136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220456413 Ceased CN202793892U (en) | 2012-09-07 | 2012-09-07 | Stirring device in automatic sample injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297802A (en) * | 2018-11-16 | 2019-02-01 | 四川临界自动化设备有限公司 | Multifunctional in-situ specimen heating holder |
| CN112629959A (en) * | 2020-12-31 | 2021-04-09 | 北京瑞升特科技有限公司 | Pneumatic stirring sampling device for sampler |
-
2012
- 2012-09-07 CN CN 201220456413 patent/CN202793892U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297802A (en) * | 2018-11-16 | 2019-02-01 | 四川临界自动化设备有限公司 | Multifunctional in-situ specimen heating holder |
| CN109297802B (en) * | 2018-11-16 | 2024-01-30 | 四川临界自动化设备有限公司 | Multifunctional in-situ heating sample stage |
| CN112629959A (en) * | 2020-12-31 | 2021-04-09 | 北京瑞升特科技有限公司 | Pneumatic stirring sampling device for sampler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103398894B (en) | A kind of air mix facilities of proportion adjustable and dilution process | |
| CN104155422A (en) | Water quality detection pipeline system and method | |
| CN107449882A (en) | A kind of high-concentration sewage COD on-line monitoring systems | |
| CN202793892U (en) | Stirring device in automatic sample injector | |
| CN2735341Y (en) | Online automatic monitor for chemical oxygen demand | |
| CN203479793U (en) | Liquid path system based on unit measure | |
| CN203216848U (en) | Sample injection device of atomic fluorescence spectrometer | |
| CN1971264A (en) | Automatic deoxidization, liquid feeding and stirring control device for titration solvent | |
| CN107543903A (en) | A kind of method and apparatus for monitoring dewatering technology of mud ammonia and hydrogen sulfide on-line | |
| CN204649517U (en) | Stirring apparatus in a kind of automatic sampler | |
| CN204536093U (en) | A kind of purging homogeneous device | |
| CN102980789B (en) | Water petroleum pollutant on-line enrichment device | |
| CN203275361U (en) | Instrument for analyzing heavy metal concentration of water | |
| CN202974872U (en) | Steam generation and steam-liquid separation system | |
| CN202974750U (en) | Separation and enrichment system | |
| CN104587686B (en) | The concentration air distributing device of organic exhaust gas and air distributing method | |
| CN205538419U (en) | Homogeneity device sweeps | |
| CN102175506A (en) | Diluting device used for on-line water quality analysis | |
| CN202305305U (en) | Timely chlorine ion concentration dilution preprocessing device | |
| CN2898822Y (en) | Automatic deoxidization, liquid feeding and stirring control device for titration solvent | |
| CN201133904Y (en) | Negative-pressure liquid phase chromatograph | |
| CN108333218A (en) | A kind of online gas detection analysis and filtration treatment system | |
| CN102607890B (en) | Standard sampling device | |
| CN208588656U (en) | A kind of pre- deoxygenation detection of corrosion test solution and chemicals dosing plant | |
| CN203838099U (en) | Device for determining biological intramembrane oxygen diffusion coefficient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI BEIYU ANALYTICAL INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI BEIYU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Effective date: 20150210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200941 BAOSHAN, SHANGHAI TO: 200431 BAOSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150210 Address after: 200431, room 822, 230 Xin Nan Lu, Shanghai, Baoshan District Patentee after: Shanghai Beiyu Analytical Instruments Co., Ltd. Address before: 200941, No. seven, No. 821 South South Road, Shanghai, Baoshan District, China Patentee before: Shanghai Beiyu Environmental Protection Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170907 |
|
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20160129 Decision number of declaring invalidation: 28149 Granted publication date: 20130313 |