CN104458733A - Digestion colorimetric device of colorimetric method based automatic ammonia nitrogen monitor - Google Patents
Digestion colorimetric device of colorimetric method based automatic ammonia nitrogen monitor Download PDFInfo
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- CN104458733A CN104458733A CN201410787471.1A CN201410787471A CN104458733A CN 104458733 A CN104458733 A CN 104458733A CN 201410787471 A CN201410787471 A CN 201410787471A CN 104458733 A CN104458733 A CN 104458733A
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- cuvette
- colorimetric
- light source
- interior pipe
- ammonia nitrogen
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Abstract
The invention discloses a digestion colorimetric device of a colorimetric method based automatic ammonia nitrogen monitor. The digestion colorimetric device comprises a digestion part and a colorimetric part which are independent from each other, and is additionally provided with a three-way valve, wherein the digestion part comprises a base, a digestion inner tube and an upper cover; the colorimetric part comprises a cuvette seat, a cuvette, a light source emission unit and a light source receiving unit; the upper end of the cuvette is provided with an extraction opening, the lower end of the cuvette is provided with a liquid inlet/outlet, the first end of the three-way valve is communicated with a liquid inlet/outlet at the lower end of the digestion inner tube, the second end of the three-way valve is communicated with the liquid inlet/outlet at the lower end of the cuvette, and the third end of the three-way valve is a liquid inlet/outlet or an air inlet. The digestion colorimetric device is small in size, convenient to operation, high in flexibility and easy to maintain. With the three-way valve, an air and liquid flow path is compact, the installation and maintenance are convenient, and shunting is convenient when the digestion inner tube and the cuvette are cleaned.
Description
Technical field
The invention belongs to chemical analysis instrument technical field, relate to a kind of colourimetry ammonia nitrogen automonitor and clear up colorimetric device.
Background technology
The concentration using colourimetry to measure ammonia nitrogen in water is a kind of comparatively general method, and this analytical approach can be traced to the source to GB laboratory assays, realizes the water quality detection method that GB, rower specify being used for in-line analyzer monitoring.General digestion instrument many employings water-bath, oil bath are carried out heating and reaching constant temperature effect, and be characterized in the better heat stability of liquid, heat insulation effect is obvious, but water-bath is when ambient temperature is too low, easy appearance freeze, damage equipment time serious, oil bath install and safeguard not too convenient.
Summary of the invention
The present invention is in order to overcome the defect of prior art, devise a kind of colourimetry ammonia nitrogen automonitor and clear up colorimetric device, volume is little, easy and simple to handle, dirigibility is large, flexible easy care, and the application of three-way valve makes gas-liquid stream compact, install and easy to maintenance, when interior pipe and cuvette are cleared up in cleaning, shunting is convenient.
The concrete technical scheme that the present invention takes is: a kind of colourimetry ammonia nitrogen automonitor clears up colorimetric device, comprise and clear up parts, colorimetric parts, key is: described parts and the colorimetric parts cleared up are two separate structures, set up three-way valve, clear up parts and comprise pedestal, clear up interior pipe, upper cover, pedestal vertically offers groove, clear up interior pipe to be arranged in groove and to be fixedly connected with pedestal by upper cover, the lower end of clearing up interior pipe is provided with liquid in-out mouth, the periphery of clearing up interior pipe is wound with heater strip, clear up on interior pipe and be provided with temperature sensor, colorimetric parts comprise cell holder, cuvette, light source transmitter unit, light source receiving element, cuvette to be arranged on cell holder and to be fixedly connected with cell holder, light source transmitter unit is symmetricly set on the both sides of cell holder with light source receiving element and is fixedly connected with cell holder, the light path of light source transmitter unit and light source receiving element is arranged along the diametric(al) of cuvette, the upper end of cuvette offers bleeding point, the lower end of cuvette is provided with liquid in-out mouth, the upper end of cuvette offers bleeding point, the first end of three-way valve is communicated with the liquid in-out mouth clearing up interior pipe lower end, second end of three-way valve is communicated with the liquid in-out mouth of cuvette lower end, 3rd end of three-way valve is liquid in-out or air intake opening.
Described three-way valve is two-bit triplet solenoid valve.
Described pedestal is provided with temperature-control protector, and the inside of clearing up interior pipe is provided with platinum resistance, and platinum resistance is connected with temperature-control protector.
The probe of described platinum resistance is provided with thermal conductive silicon lipid layer.
Described clear up interior pipe be transparent organic glass make clear up interior pipe.
Between the described upper surface of clearing up interior pipe and pedestal, between lower surface and pedestal, be all provided with rubber gasket.
The bottom of described cuvette is funnel shaped.
Described cuvette is the cuvette that transparency silica glass is made.
Described pedestal and cell holder are all the pedestals be made up of transparent organic glass.
The light source of described light source transmitter unit is LED light source.
The invention has the beneficial effects as follows: be arranged to two separate structures by clearing up parts and colorimetric parts, three-way valve is utilized to be linked together by the liquid in-out mouth of the liquid in-out mouth and colorimetric parts of clearing up parts, decide to clear up by three-way valve and to be in connected state between parts and colorimetric parts or to be in off-state, volume is little, easy and simple to handle, dirigibility is large, flexible easy care, the application of three-way valve makes gas-liquid stream compact, install and easy to maintenance, when interior pipe and cuvette are cleared up in cleaning, shunting is convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation clearing up parts in the present invention.
Fig. 2 is that the A-A of Fig. 1 is to diagrammatic cross-section.
Fig. 3 is the structural representation of colorimetric parts in the present invention.
Fig. 4 is the left view of Fig. 3.
In accompanying drawing, 1 represents pedestal, and interior pipe is cleared up in 2 representatives, and 3 represent upper cover; 4 represent cell holder, and 5 represent cuvette, and 6 represent light source transmitter unit, and 7 represent light source receiving element; 8 represent three-way valve, and 9 represent temperature-control protector, and 10 represent platinum resistance, and 11 represent rubber gasket.
Embodiment
A kind of colourimetry ammonia nitrogen automonitor clears up colorimetric device, comprises and clears up parts, colorimetric parts, and clearing up parts and colorimetric parts is two separate structures, set up three-way valve 8, three-way valve 8 is preferably two-bit triplet solenoid valve, easy to use, controls accurately.Clear up parts to comprise pedestal 1, clear up interior pipe 2, upper cover 3, that clears up that interior pipe 2 makes for transparent organic glass clears up interior pipe, is convenient to Real Time Observation and clears up situation in interior pipe 2.Pedestal 1 vertically offers groove, clear up interior pipe 2 to be arranged in groove and to be fixedly connected with pedestal 1 by upper cover 3, between the upper surface of clearing up interior pipe 2 and pedestal 1, between lower surface and pedestal 1, be all provided with rubber gasket 11, make to clear up interior pipe 2 and pedestal 1 sealing locking.The lower end of clearing up interior pipe 2 is provided with liquid in-out mouth, and the periphery of clearing up interior pipe 2 is wound with heater strip, clears up on interior pipe 2 and is provided with temperature sensor.Pedestal 1 is provided with temperature-control protector 9, the inside of clearing up interior pipe 2 is provided with platinum resistance 10, and platinum resistance 10 is connected with temperature-control protector 9, realizes overload protection.The probe of platinum resistance 10 is provided with thermal conductive silicon lipid layer, rapidly temperature can be passed to temperature-control protector, improve the measuring accuracy of temperature, play overload protective function better.
Colorimetric parts comprise cell holder 4, cuvette 5, light source transmitter unit 6, light source receiving element 7, and pedestal 1 and cell holder 4 are all the pedestals be made up of transparent organic glass, make the inner clear easy observation of pipeline.The cuvette that cuvette 5 is made for transparency silica glass, is convenient to observe inner case.Cuvette 5 to be arranged on cell holder 4 and to be fixedly connected with cell holder 4, and the bottom of cuvette 5 is funnel shaped, significantly can reduce raffinate, improves colorimetric precision.Light source transmitter unit 6 and light source receiving element 7 are symmetricly set on the both sides of cell holder 4 and are fixedly connected with cell holder 4, the light path of light source transmitter unit 6 and light source receiving element 7 is arranged along the diametric(al) of cuvette 5, and the light source of light source transmitter unit 6 is preferably LED light source.The upper end of cuvette 5 offers bleeding point, the lower end of cuvette 5 is provided with liquid in-out mouth, the first end of three-way valve 8 is communicated with the liquid in-out mouth clearing up interior pipe 2 lower end, second end of three-way valve 8 is communicated with the liquid in-out mouth of cuvette 5 lower end, 3rd end of three-way valve 8 is liquid in-out or air intake opening, clear up parts and the separate structure of colorimetric parts, prevent and clear up parts and to freeze the generation of damaged condition, saved maintenance cost.
Principle of work of the present invention is: clear up parts and colorimetric parts independently carry out, after water sample and reagent are entered from the liquid in-out mouth clearing up interior pipe 2 lower end by the 3rd end of two-bit triplet solenoid valve, to clearing up blow bubble in interior pipe 2, water sample and reagent mixing are cleared up, through electric-heating-wire-heating, clear up completely, the action of two-bit triplet solenoid valve, be communicated with and clear up parts and colorimetric parts, utilize propulsion system, by the bleeding point of cuvette 5 upper end, cuvette 5 is taken out negative pressure, the solution cleared up in interior pipe 2 is made to enter cuvette 5 through two-bit triplet solenoid valve from the liquid in-out mouth bottom cuvette 5 inner, now light source transmitter unit 6 provides required light source and gathers reference light signal, light source receiving element 7 gathers the light signal after decay, carry out colorimetric detection, after colorimetric detection completes, propulsion system are utilized to be pressurizeed to cuvette 5 by the bleeding point of cuvette 5 upper end, the solution of cuvette 5 inside is discharged by the liquid in-out mouth bottom cuvette 5, then returning through two-bit triplet solenoid valve clears up in interior pipe 2, then the 3rd termination of two-bit triplet solenoid valve is led to distilled water contrast colors ware 5 and is cleared up interior pipe 2 and cleans.
Claims (10)
1. a colourimetry ammonia nitrogen automonitor clears up colorimetric device, comprise and clear up parts, colorimetric parts, it is characterized in that: described parts and the colorimetric parts cleared up are two separate structures, set up three-way valve (8), clear up parts and comprise pedestal (1), clear up interior pipe (2), upper cover (3), (1) vertically offers groove to pedestal, clear up interior pipe (2) to be arranged in groove and to be fixedly connected with pedestal (1) by upper cover (3), the lower end of clearing up interior pipe (2) is provided with liquid in-out mouth, the periphery of clearing up interior pipe (2) is wound with heater strip, clear up on interior pipe (2) and be provided with temperature sensor, colorimetric parts comprise cell holder (4), cuvette (5), light source transmitter unit (6), light source receiving element (7), cuvette (5) is arranged on cell holder (4) and goes up and be fixedly connected with cell holder (4), light source transmitter unit (6) and light source receiving element (7) are symmetricly set on the both sides of cell holder (4) and are fixedly connected with cell holder (4), the light path of light source transmitter unit (6) and light source receiving element (7) is arranged along the diametric(al) of cuvette (5), the upper end of cuvette (5) offers bleeding point, the lower end of cuvette (5) is provided with liquid in-out mouth, the first end of three-way valve (8) is communicated with the liquid in-out mouth clearing up interior pipe (2) lower end, second end of three-way valve (8) is communicated with the liquid in-out mouth of cuvette (5) lower end, 3rd end of three-way valve (8) is liquid in-out or air intake opening.
2. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: described three-way valve (8) is two-bit triplet solenoid valve.
3. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device; it is characterized in that: described pedestal (1) is provided with temperature-control protector (9); the inside of clearing up interior pipe (2) is provided with platinum resistance (10), and platinum resistance (10) is connected with temperature-control protector (9).
4. a kind of colourimetry ammonia nitrogen automonitor according to claim 3 clears up colorimetric device, it is characterized in that: the probe of described platinum resistance (10) is provided with thermal conductive silicon lipid layer.
5. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: described clear up that interior pipe (2) makes for transparent organic glass clear up interior pipe.
6. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: between the described upper surface of clearing up interior pipe (2) and pedestal (1), be all provided with rubber gasket (11) between lower surface and pedestal (1).
7. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: the bottom of described cuvette (5) is funnel shaped.
8. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: the cuvette that described cuvette (5) is made for transparency silica glass.
9. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: described pedestal (1) and cell holder (4) are all the pedestals be made up of transparent organic glass.
10. a kind of colourimetry ammonia nitrogen automonitor according to claim 1 clears up colorimetric device, it is characterized in that: the light source of described light source transmitter unit (6) is LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787471.1A CN104458733A (en) | 2014-12-17 | 2014-12-17 | Digestion colorimetric device of colorimetric method based automatic ammonia nitrogen monitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787471.1A CN104458733A (en) | 2014-12-17 | 2014-12-17 | Digestion colorimetric device of colorimetric method based automatic ammonia nitrogen monitor |
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| CN104458733A true CN104458733A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410787471.1A Pending CN104458733A (en) | 2014-12-17 | 2014-12-17 | Digestion colorimetric device of colorimetric method based automatic ammonia nitrogen monitor |
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| CN (1) | CN104458733A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226043A (en) * | 2016-12-22 | 2018-06-29 | 赛默飞世尔（上海）仪器有限公司 | For the measuring unit and measuring system of water quality monitoring |
| CN116609279A (en) * | 2023-05-29 | 2023-08-18 | 上海博取仪器有限公司 | Calibrating device of water quality testing equipment light source |
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| CN204287050U (en) * | 2014-12-17 | 2015-04-22 | 河北先河环保科技股份有限公司 | A kind of colourimetry ammonia nitrogen automonitor clears up colorimetric device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2005064328A1 (en) * | 2003-12-20 | 2005-07-14 | Hach Lange Gmbh | Method for the photometric determination of a parameter |
| JP2007136293A (en) * | 2005-11-16 | 2007-06-07 | Hitachi Zosen Corp | Method for treating liquid organic waste material |
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Cited By (3)
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| CN108226043A (en) * | 2016-12-22 | 2018-06-29 | 赛默飞世尔（上海）仪器有限公司 | For the measuring unit and measuring system of water quality monitoring |
| CN116609279A (en) * | 2023-05-29 | 2023-08-18 | 上海博取仪器有限公司 | Calibrating device of water quality testing equipment light source |
| CN116609279B (en) * | 2023-05-29 | 2023-12-22 | 上海博取仪器有限公司 | Calibrating device of water quality testing equipment light source |
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Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |