CN201364336Y - Dedicated metering device for automatic water quality analyzer - Google Patents
Dedicated metering device for automatic water quality analyzer Download PDFInfo
- Publication number
- CN201364336Y CN201364336Y CNU200920037706XU CN200920037706U CN201364336Y CN 201364336 Y CN201364336 Y CN 201364336Y CN U200920037706X U CNU200920037706X U CN U200920037706XU CN 200920037706 U CN200920037706 U CN 200920037706U CN 201364336 Y CN201364336 Y CN 201364336Y
- Authority
- CN
- China
- Prior art keywords
- port
- valve
- selector valve
- communicated
- water quality
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 230000002572 peristaltic effect Effects 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000004737 colorimetric analysis Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005693 optoelectronics Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a dedicated metering device for an automatic water quality analyzer, which belongs to the technical field. The metering device comprises a liquid-flow driving device, a meter and a first selector valve, wherein the first selector valve comprises a first valve port and a plurality of second valve ports connected with first valve port; and an opening at one end of the meter is communicated with the first valve port, and an opening at the other end is communicated with the liquid-flow driving device. The metering device further comprises a second selector valve; the second selector valve comprises at least six ports which can be communicated in pairs; at least two ports are communicated with two of the second valve ports respectively; and the other two ports are communicated through a sampling tube. The metering device can automatically perform the on-line metering to trace liquid, thereby extending the application range of the automatic water quality analyzer and improving the degree of automation of water quality measurement.
Description
Technical field
The utility model relates to and a kind of water quality is carried out measuring apparatus in the automatic analytical instrument, belongs to the analyser technical field.
Background technology
At present, adopt online automatic monitor to carry out more and more to water-quality test, the kind of automatic water quality monitoring instrument contains various existing GB prescriptive procedures (as " the mensuration nessler reagent colourimetry of GB7479-87 water quality ammonium " and " distillation of the mensuration of GB7478-87 water quality ammonium and titrimetry " etc.).
One of existing automatic water quality monitoring instrument is that the applicant is the disclosed automatic chemical analyzer of Chinese patent of CN201141864 at the publication number of first to file, this analyser adopts peristaltic pump collection and metering sample liquid to have defectives such as precision is not high, rapid wear at tradition, has designed a kind of optoelectronic metering installation based on volume ratio of novelty.But the applicant finds that when using this analyser this analyser is usually powerless for the metering of big proportioning sample liquid (being the long-pending situation that accounts for the large percentage of whole test fluid cumulative volumes of sample liquid).This is because when the big proportioning sample liquid of metering, the volume of sample liquid often very little (being that sample liquid is trace), and the optoelectronic metering installation of this analyser is difficult to metering.For example, when using this analyser by nessler reagent colorimetric method for determining water quality, because the addition of nessler reagent in whole test fluid only is 1/50 of whole test fluid cumulative volumes, this moment, the addition of nessler reagent was very little, and optoelectronic metering installation is difficult to metering.Thus, the applicant thinks and is necessary that the measuring apparatus to existing automatic water quality monitoring instrument is further improved.
The utility model content
The technical problems to be solved in the utility model is to propose a kind of special-purpose measuring apparatus of water quality automatic analyzer that can be applicable to the metering of big proportioning trace sample liquid, thereby widen the usable range of water quality automatic analyzer and the automaticity of the mensuration of increasing water quality.
The technical solution of the utility model is: the special-purpose measuring apparatus of a kind of water quality automatic analyzer comprises liquid stream drive unit, meter and first selector valve; Described first selector valve contain one first valve port and a plurality of can be respectively and second valve port of the first valve port conducting; One end opening of described meter is communicated with first valve port, and its other end opening is communicated with liquid stream drive unit; Improvement is: also comprise second selector valve; Described second selector valve contains at least six ports that can distinguish conducting in twos, wherein have at least two ports respectively with described second valve port in two be communicated with, have at least in addition to be communicated with by sampling pipe between two ports.
Contain six ports with second selector valve in the technique scheme operating position is described, wherein to compile respectively be first port to six ports, second port, the 3rd port, the 4th port, five-port and the 6th port, when need add certain analytical reagent of volume very little relatively (trace): the 1) sampling pipe (can be easy to realize) of selecting one section internal volume to equate earlier by the sampling pipe of selecting certain caliber and length with this kind analytical reagent volume, the sampling pipe of choosing is connected between second port and five-port of second selector valve, the 4th port with second selector valve is communicated with another kind of large volume component analysis reagent again; 2) suck this kind analytical reagent of larger volumetric amount in meter by existing method (is the GN201141864 Chinese patent referring to above-mentioned publication number) the control liquid stream drive unit and first selector valve, control the conducting of one of first valve port of first selector valve and second valve port then, control liquid stream drive unit is discharged to one of this kind analytical reagent of contained larger volumetric amount in the meter second valve port by first selector valve first port of second selector valve, control first port and the second port conducting of second selector valve, control the five-port and the 6th port conducting of second selector valve simultaneously, this kind analytical reagent promptly from first port successively through second port, sampling pipe, five-port and the 6th port are discharged outside; 3) in the middle of discharging, (be that this kind analytical reagent in the meter is not when draining as yet, be full of this kind analytical reagent in the sampling pipe this moment) switch second selector valve make its first port with the disconnection of second port with the 6th port conducting, like this, this that does not drain as yet in the meter kind of analytical reagent transfers directly to discharge the outside from first port and the 6th port, this moment second selector valve five-port and the 4th port conducting; 4) after this kind analytical reagent drains, control two conductings of first valve port of first selector valve and second valve port and close with one of second valve port, control liquid stream drive unit sucks another kind of large volume component analysis reagent from the 4th port of second selector valve, and another kind of large volume component analysis reagent is just sent in the meter through the five-port of second selector valve, sampling pipe, second port of second selector valve, the 3rd port and first selector valve of second selector valve successively with this kind of the trace analytical reagent that remains in the sampling pipe; 5) last, control liquid stream drive unit is sent to the potpourri of trace this kind analytical reagent and a large amount of another kind of analytical reagents in the meter test reaction device of water quality automatic analyzer from first selector valve.
Obviously, when need add the water sample of big proportioning trace or other sample liquid, can repeat said process, last, other devices that control liquid stream drive unit is sent to the water quality automatic analyzer with the water sample that measures or other sample liquid (as distilling apparatus etc.).
In a word, the special-purpose measuring apparatus of water quality automatic analyzer of the present utility model is compared the various measuring apparatus of existing automatic water quality monitoring instrument, can accurate measurement big proportioning trace sample liquid, thereby the automaticity of widening the usable range of existing automatic water quality monitoring instrument and increasing water quality and measure.
The perfect of technique scheme is: the port of described second selector valve has six, is divided into first port, second port, the 3rd port, the 4th port, five-port and the 6th port; Wherein first port and the 3rd port respectively with one of described second valve port, two be communicated with, second port is communicated with by sampling pipe with five-port.
Further improving of technique scheme is: described second selector valve mainly is made of the stator and the moving plate of circle, and described stator is shaped on the through hole of six each intervals along circumference; The port of described second selector valve is formed on the stator outer circumference surface at interval respectively and is communicated with an end of described six through holes respectively; The circumference of corresponding through hole is carved with three guide grooves on the one side disk of described moving plate; When described moving plate rotated, described three guide grooves were respectively with the conducting in twos of described six through holes.
Further improving of technique scheme is: described meter is mainly by being fixed on first support on the cabinet internal partition, being threaded onto the gauge line of first support and being loaded on first support and the first photoelectrometer measuring device of the gauge line both sides that recline constitutes.
Description of drawings
Be described further of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the special-purpose measuring apparatus of water quality automatic analyzer among the utility model embodiment.
Fig. 2 is the enlarged diagram of selector valve part among Fig. 1.
Fig. 3 is the stator structural representation of second selector valve among Fig. 2.
Fig. 4 is the moving plate structural representation of second selector valve among Fig. 2.
Fig. 5 is the concrete user mode figure of the special-purpose measuring apparatus of water quality automatic analyzer among the utility model embodiment.
Fig. 6 is the structural representation of one of second selector valve user mode among Fig. 5.
Fig. 7 is two a structural representation of the second selector valve user mode among Fig. 5.
Embodiment
Embodiment
Present embodiment is a preferred embodiment of the present utility model, specifically is the mensuration nessler reagent colourimetry that is used for by National Standard GB7479-87 water quality ammonium " measure the special-purpose measuring apparatus of water quality automatic analyzer of water sample ammonia nitrogen value.This special use measuring apparatus comprises liquid stream drive unit, meter and first selector valve 7 as shown in Figure 1; Also comprise second selector valve 8.Liquid stream drive unit adopts peristaltic pump 9.Meter mainly by first support 10, be threaded onto the gauge line 11 of first support 10 and be loaded on first support 10 and the first photoelectrometer measuring device of gauge line 11 both sides that recline constitutes, the first photoelectrometer measuring device has two, is provided in a side of the low level photoelectrometer measuring device 12 and the high-order photoelectrometer measuring device 13 of gauge line 11 low levels respectively.
As shown in Figure 1 and Figure 2, first selector valve 1 contains one first valve port a and eight can be respectively and the second valve port b, c, d, e, f, g, h, the k of the first valve port conducting, the concrete structure of first selector valve 1 can not repeat them here referring to the instructions 5-6 page or leaf of above-mentioned publication number CN201141864 Chinese patent " automatic chemical analyzer ".Gauge line 11 1 end openings of meter are communicated with the first valve port a, and its other end opening is communicated with peristaltic pump 9.Second selector valve 8 contains six port ones, 2,3,4,5,6, for convenient narration, is first port one, second port 2, the 3rd port 3, the 4th port 4, five-port 5 and the 6th port 6 with six port numberings; Wherein first port one and the 3rd port 3 are communicated with two e of one of second valve port f, second valve port respectively, and second port 2 is communicated with by sampling pipe 14 with five-port 5.
As shown in Figure 5, to be used for the concrete operating position of water quality automatic analyzer as follows for the special-purpose measuring apparatus of present embodiment:
One, before the use, earlier with the second valve port b of first selector valve 7, c, d, g, k respectively with specimen fluids 24, water sample to be measured 25, evict agent 26, absorbing agent 28 and indicator 29 from and be communicated with, the second valve port h of first selector valve 7 is communicated with tester 20 by first T-valve 19, the 6th port 6 of second selector valve 8 is connected with waste liquid bottle 27, and the 4th port 4 of second selector valve 8 is communicated with sensitizer 30 and distilling apparatus 22 respectively by second T-valve 21.
Two, when need add the indicator of big proportioning trace, the long-pending sampling pipe 14 that equates with the indicator volume of first chosen content is communicated with five-port 5 with second port 2 of the sampling pipe of choosing 14 with second selector valve 8; 1) just changeing by existing method (is the CN201141864 Chinese patent referring to above-mentioned publication number) control peristaltic pump 9, suck the indicator 29 of larger volumetric amount in gauge line 11 by first selector valve 7 (even the first valve port a of first selector valve 7 and second valve port k conducting), control the f conducting of one of the first valve port a of first selector valve 7 and second valve port then, the counter-rotating of control peristaltic pump 9 is discharged to second selector valve, 8 first port ones with one of the indicator 29 of contained larger volumetric amount in the gauge line 11 second valve port by first selector valve 7 f, as shown in Figure 6, control second selector valve, 8 first port ones and 2 conductings of second port, control second selector valve, 8 five- port 5 and 6 conductings of the 6th port simultaneously, indicator 29 promptly from first port one successively through second port 2, sampling pipe 14, five-port 5 and the 6th port 6 are discharged to outside waste liquid bottle 27; 3) as shown in Figure 7, in the middle of discharging, (be that indicator 29 in the gauge line 11 is not when draining as yet, be full of indicator 29 in the sampling pipe 14 this moment) switch second selector valve 8 make its first port one with 2 disconnections of second port with its 6th port 6 conductings, like this, the indicator 29 that does not drain as yet in the gauge line 11 transfers directly to be discharged to waste liquid bottle 27 from first port one and the 6th port 6, the five- port 5 and 4 conductings of the 4th port of second selector valve 8 at this moment; 4) after indicator 29 drains, control two e conductings of the first valve port a of first selector valve 7 and second valve port and close with one of second valve port f, control peristaltic pump 9 is just changeing the sensitizer 30 that sucks larger volumetric amount from second selector valve 8 the 4th port 4, and sensitizer 30 is just sent in the gauge line 11 through the five-port 5 of second selector valve 8, sampling pipe 14, second port 2 of second selector valve 8, the 3rd port 3 and first selector valve 7 of second selector valve 8 successively with the micro-indicator 29 that remains in the sampling pipe 14; 5) control the first valve port a and the second valve port h conducting and control peristaltic pump 9 counter-rotating at last, the potpourri of micro-indicator 29 in the gauge line 11 and a large amount of sensitizers 30 is sent to tester 20.
When need add the water sample of big proportioning trace or other sample liquid, can repeat said process, last, control peristaltic pump 9 is sent to distilling apparatus 22 with water sample or other sample liquid that measures.
Special-purpose measuring apparatus of the present utility model is not limited to the foregoing description, such as: 1) except being used for water sample ammonia nitrogen pH-value determination pH, can also be used for other substance-measurings of water sample; 2) liquid stream drive unit also can adopt syringe pump and syringe to replace peristaltic pump; 3) meter also can adopt other volume type measuring apparatus, and selector valve also can adopt other valves such as solenoid valve; 4) quantity of second valve port of first selector valve also can be other quantity; 5) six of second selector valve port numberings do not refer in particular to, and only for convenience of explanation, port numbering also can exchange arbitrarily; 6) port of second selector valve also can be eight or more a plurality of, and corresponding sampling pipe also can be to be connected a plurality of on per two ports; Or the like.All employings are equal to or the technical scheme that forms is replaced in equivalence, all drop on the protection domain of the utility model requirement.
Claims (4)
1. the special-purpose measuring apparatus of water quality automatic analyzer comprises liquid stream drive unit, meter and first selector valve; Described first selector valve contain one first valve port and a plurality of can be respectively and second valve port of the first valve port conducting; One end opening of described meter is communicated with first valve port, and its other end opening is communicated with liquid stream drive unit; It is characterized in that: also comprise second selector valve; Described second selector valve contains at least six ports that can distinguish conducting in twos, wherein have at least two ports respectively with described second valve port in two be communicated with, have at least in addition to be communicated with by sampling pipe between two ports.
2. according to the special-purpose measuring apparatus of the described water quality automatic analyzer of claim 1, it is characterized in that: the port of described second selector valve has six, is divided into first port, second port, the 3rd port, the 4th port, five-port and the 6th port; Wherein first port and the 3rd port respectively with one of described second valve port, two be communicated with, second port is communicated with by sampling pipe with five-port.
3. according to the special-purpose measuring apparatus of the described water quality automatic analyzer of claim 2, it is characterized in that: described second selector valve mainly is made of the stator and the moving plate of circle, and described stator is shaped on the through hole of six each intervals along circumference; The port of described second selector valve is formed on the stator outer circumference surface at interval respectively and is communicated with an end of described six through holes respectively; The circumference of corresponding through hole is carved with three guide grooves on the one side disk of described moving plate; When described moving plate rotated, described three guide grooves were respectively with the conducting in twos of described six through holes.
4. according to the special-purpose measuring apparatus of the described water quality automatic analyzer of claim 3, it is characterized in that: described meter is mainly by being fixed on first support on the cabinet internal partition, being threaded onto the gauge line of first support and being loaded on first support and the first photoelectrometer measuring device of the gauge line both sides that recline constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920037706XU CN201364336Y (en) | 2009-01-20 | 2009-01-20 | Dedicated metering device for automatic water quality analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920037706XU CN201364336Y (en) | 2009-01-20 | 2009-01-20 | Dedicated metering device for automatic water quality analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364336Y true CN201364336Y (en) | 2009-12-16 |
Family
ID=41475004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920037706XU Expired - Lifetime CN201364336Y (en) | 2009-01-20 | 2009-01-20 | Dedicated metering device for automatic water quality analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201364336Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825642A (en) * | 2010-05-19 | 2010-09-08 | 郭永亮 | Metering device of automatic analysis meter |
| CN101900703A (en) * | 2010-06-30 | 2010-12-01 | 宇星科技发展(深圳)有限公司 | Arsenic on-line analyzer |
| CN102537421A (en) * | 2011-12-23 | 2012-07-04 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102607889A (en) * | 2012-03-14 | 2012-07-25 | 广州市怡文环境科技股份有限公司 | Liquid taking and metering method for analytical instrument |
-
2009
- 2009-01-20 CN CNU200920037706XU patent/CN201364336Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825642A (en) * | 2010-05-19 | 2010-09-08 | 郭永亮 | Metering device of automatic analysis meter |
| CN101825642B (en) * | 2010-05-19 | 2013-04-03 | 郭永亮 | Metering device of automatic analysis meter |
| CN101900703A (en) * | 2010-06-30 | 2010-12-01 | 宇星科技发展(深圳)有限公司 | Arsenic on-line analyzer |
| CN101900703B (en) * | 2010-06-30 | 2013-03-20 | 宇星科技发展(深圳)有限公司 | Arsenic on-line analyzer |
| CN102537421A (en) * | 2011-12-23 | 2012-07-04 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102537421B (en) * | 2011-12-23 | 2013-06-19 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102607889A (en) * | 2012-03-14 | 2012-07-25 | 广州市怡文环境科技股份有限公司 | Liquid taking and metering method for analytical instrument |
| CN102607889B (en) * | 2012-03-14 | 2015-08-26 | 广州市怡文环境科技股份有限公司 | A kind ofly get liquid metering method for analytical instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102680545B (en) | Test instrument for detecting electrolyte item and total carbon dioxide | |
| CN101692093B (en) | Automatic analyzer for anionic surfactant in water and automatic analysis method | |
| CN203069564U (en) | Full-automatic titrator | |
| CN201364336Y (en) | Dedicated metering device for automatic water quality analyzer | |
| CN103353513A (en) | Liquid path system based on unit metering and use method thereof | |
| CN102901835A (en) | Method and device for collecting sample by full-automatic blood cell analyzer | |
| CN203241404U (en) | Automatic multi-parameter chemical reagent filling device of water quality online analyzer | |
| CN104897669A (en) | Three-way valve metering device of online water quality monitor | |
| CN103344778A (en) | Microsample injection apparatus and sample injection method | |
| CN102288519B (en) | For estimating the method for viscosity | |
| CN102253231A (en) | Automatic analyzer of water soluble sulfide and analysis method | |
| CN113759137A (en) | Sample detection device and sample detection method | |
| CN203275349U (en) | Ammonia nitrogen concentration water quality analyzer | |
| CN203479793U (en) | Liquid path system based on unit measure | |
| CN103063816A (en) | Method for simultaneously detecting nitrogen and phosphorus indexes of water quality | |
| CN102072930A (en) | Flow injection serially connected microelectrode electrochemical automatic method and device for simultaneous measurement of various electrolytes in blood sample | |
| CN104730216B (en) | A kind of analysis metering device and liquid analysis system | |
| CN101943695B (en) | Water quality analyzing device and method for realizing recovery rate of water quality analyzing apparatus | |
| CN202621512U (en) | Sampling needle cleaner and sample analysis device with built-in sampling needle cleaner | |
| CN201662557U (en) | Crude oil containing water analyzer device with temperature and pressure compensation | |
| CN103399163A (en) | Online phosphorus and fluorine content measuring analyzer | |
| CN1359005A (en) | High-precision fully automatic photomatrix titrimetric analysis instrument | |
| CN102175506A (en) | Diluting device used for on-line water quality analysis | |
| CN215641193U (en) | Dynamic adding mark water quality on-line quality control instrument | |
| CN204694639U (en) | The T-valve measuring apparatus of water quality on-line monitoring instrument |
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: ZHONGLV ENVIRONMENTAL PROTECTION TECHNOLOGY CO., L Free format text: FORMER OWNER: GUO YONGLIANG Effective date: 20120119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211100 NANJING, JIANGSU PROVINCE TO: 030032 TAIYUAN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120119 Address after: 030032 Shanxi environmental protection science and Technology Park, south of North Central Street, Taiyuan hi tech Zone, Shanxi Patentee after: Sinogreen Environmental Protection Science & Technology Co., Ltd. Address before: Jiangning District of Nanjing city in Jiangsu province 211100 100 Lake Garden in Paris city 7-602 Patentee before: Guo Yongliang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |