CN202548057U - Constant-temperature optical fiber colorimetric titration device - Google Patents
Constant-temperature optical fiber colorimetric titration device Download PDFInfo
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- CN202548057U CN202548057U CN2011205002202U CN201120500220U CN202548057U CN 202548057 U CN202548057 U CN 202548057U CN 2011205002202 U CN2011205002202 U CN 2011205002202U CN 201120500220 U CN201120500220 U CN 201120500220U CN 202548057 U CN202548057 U CN 202548057U
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- constant temperature
- aluminium block
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Abstract
The utility model relates to a constant-temperature optical fiber colorimetric titration device. The constant-temperature optical fiber colorimetric titration device comprises a magnetic stirring device, a light-emitting diode, an incident optical fiber, heat conducting silicon grease, a cuvette, a glass cap, an exhaust hole, an aluminum block, an emergent optical fiber, a selenium photocell, a lens, a heating sheet, a liquid inlet and outlet and a temperature sensor, wherein the magnetic stirring device is mounted at the lower part of the cuvette, and the glass cap with the exhaust hole is covered on the cuvette; the liquid inlet and outlet is arranged at the bottom end of the cuvette, and the heating sheet is further mounted at the bottom end of the cuvette; the light-emitting diode and the selenium photocell are respectively mounted on the two sides of the cuvette, the incident optical fiber is connected between the cuvette and the light-emitting diode, and the lens and the emergent optical fiber are sequentially connected between the selenium photocell and the cuvette; and the aluminum block is wrapped on the outer wall of the cuvette, the heat conducting silicon grease is filled between the cuvette and the aluminum block, a groove for placing the heating sheet is arranged on the outer side of the aluminum block, and a round hole for containing the temperature sensor is designed in the aluminum block. The constant-temperature optical fiber colorimetric titration device provided by the utility model which has the advantages of high heating speed and uniform heating, and is suitable for online monitoring.
Description
Technical field
The utility model relates to the colorimetric titration device of field of environment protection water quality online automatic monitor, relates in particular to a kind of thermostatical color comparison titration apparatus.
Background technology
Environmental pollution has become the significant problem of whole world common concern, particularly along with the development of industrial economy, in the environment pollution of water body more serious, the task of on-line monitoring is very arduous.Therefore water quality monitoring needs more accurate, stable monitoring instrument, to satisfy the needs of modern environment monitoring development.Various titrators are arranged at present both at home and abroad: conductance titration, radio frequency titration, coulometric titration, photometric titration etc., wherein be not subject to the interference and the pollution of complex sample component with photometric titration, range of application is the wideest, in international and domestic standard by extensively employing; Colorimetric analysis also is one of important method in the analytical chemistry, for constant, trace, trace analysis very high sensitivity, accuracy is arranged all; Photometric titration and colorimetric analysis; Must in a reaction tank, carry out titration or chromogenic reaction, and, just analyze, calculate to provide the detection data according to different programs by the light activated element output voltage signal; Therefore with the reaction tank universalization of this two alanysis; Dual-use, existing objective possibility possesses skills again, economic implications.In addition, because monitored water body adopts electrically heated rod or oil bath type of heating,, exist defectives such as thermal field is inhomogeneous, thermometric is inaccurate although it is very fast to heat up.
Application number is 01131529.6; Name is called the Chinese invention patent of titration, the general reaction unit of colorimetric; The reaction tank that is respectively equipped with incident monochromatic source and light activated element by relative both sides constitutes; Be provided with magnetic stirrer, inlet and leakage fluid dram in its underpart, described incident monochromatic source is to conduct to reaction pool wall one side through incident optical, and described light activated element is to come the light signal in the acceptable response pond through the outgoing optical fiber that is located at the relative side of pool wall; Said reaction tank top is provided with the loam cake that has steam (vapor) outlet; Its middle and lower part also is provided with temperature sensor, automatically controlled well heater, and described inlet is connected with automatically controlled impregnator, and described leakage fluid dram is connected with automatically controlled peristaltic pump.This patent only is designed with automatically controlled well heater in both sides, reaction tank lower end, and it is slow not only to heat up, and heats inhomogeneously, causes thermometric inaccurate, and chromogenic reaction waits defective slowly.
The patent No. is ZL200820240834.X; Name is called a kind of Chinese utility model patent of clearing up titration apparatus, comprises the vitreous digestion container that is installed in the shell, and the top of said digestion container and bottom are respectively equipped with into water appearance mouth and discard solution discharge port; The top is connected to a refrigeratory; Metal-plated membrane adds hot-dip coating on the outside wall surface of digestion container, and the two ends that metal film adds hot-dip coating are connected to lead respectively, and the bottom of digestion container is provided with the magnetic stirring apparatus; Said digestion container two ends also are provided with optical transmission/reception device; Said optical transmission/reception device comprises light expelling plate, light receiving plate and lamp guide; Light expelling plate and light receiving plate are positioned at the two ends of lamp guide, are linked to each other by two lamp guides between light expelling plate, light receiving plate and the digestion container bottle; Said digestion container is provided with built-in platinum resistor temperature measuring device.This utility model patent only between about 1/3 height of the outer wall of digestion container and bottom metal-plated membrane add hot-dip coating, exist firing rate slow equally, heat inhomogeneously, cause thermometric inaccurate, chromogenic reaction waits defective slowly.
Summary of the invention
The utility model exists firing rate slow to titration colorimetric device in the prior art; Heat inhomogeneously, cause thermometric inaccurate, chromogenic reaction is slow; And in the optic path process, receive defectives such as the various interference of external electromagnetism; Provide a kind of firing rate fast, homogeneous heating, and optical fiber can not receive the constant temperature fiber ratio color titration apparatus of various interference such as external electromagnetism in conductive process.
A kind of constant temperature fiber ratio color titration apparatus comprises magnetic stirring apparatus, light emitting diode, incident optical, cuvette, glass cap, vent port, framework, outgoing optical fiber, selenium cell, lens, liquid in-out mouth, temperature sensor; Said magnetic stirring apparatus is installed in the bottom of said cuvette, and the said glass cap that has said vent port is on said cuvette, and the bottom of said cuvette is provided with said liquid in-out mouth; The both sides, lower end of said cuvette are installed said light emitting diode and said extinction battery respectively; Connect incident optical between said cuvette and the light emitting diode; Be connected with lens and outgoing optical fiber between said extinction battery and the cuvette in turn, it is characterized in that: also comprise aluminium block, heating plate and heat-conducting silicone grease, the bottom of said cuvette is equipped with heating plate; The outer wall of said cuvette is enclosed with said aluminium block; Be filled with said heat-conducting silicone grease between the two, the outside of said aluminium block is provided with the groove that is used to place said heating plate, and the said frame fixation that is used for fixing said heating plate is on said aluminium block; The indoor design of said aluminium block is useful on the circular hole that holds said temperature sensor.
As preferably, said cuvette is the fiber ratio color ware.
As preferably, said incident optical and said outgoing optical fiber have 1/3 part to stretch in the cuvette respectively.
As preferably, the said aluminium block outside is provided with the groove that is used to place said heating plate has 8.
As preferably, said magnetic stirring apparatus is made up of motor, magnetic receiver, magnet and magnetic agitation, and said magnet is installed on the said magnetic receiver, and said magnetic receiver is installed on the main shaft of said motor, and said magnetic agitation places the bottom of cuvette.
As preferably, the circular hole that is used to hold said temperature sensor is positioned at the position of said aluminium block inside near the cuvette middle part.
As preferably, the light path of said light emitting diode, incident optical, outgoing optical fiber, selenium cell, lens point-blank.
Description of drawings
Shown in Figure 1 is the utility model constant temperature fiber ratio color titration apparatus front view
Shown in Figure 2 is the utility model constant temperature fiber ratio color titration apparatus left view
Shown in Figure 3 is the structural drawing of aluminium block in the utility model constant temperature fiber ratio color titration apparatus
Shown in Figure 4 is the utility model constant temperature fiber ratio color titration apparatus embodiment structural representation
Embodiment
Fig. 1, Fig. 2 and shown in Figure 3, the utility model constant temperature fiber ratio color titration apparatus comprise motor 1, magnetic receiver 2, magnet 3, magnetic agitation 4, light emitting diode 5, incident optical 6, heat-conducting silicone grease 7, cuvette 8, glass cap 9, vent port 10, aluminium block 11, framework 12, outgoing optical fiber 13, selenium cell 14, lens 15, heating plate 16, liquid in-out mouth 17, temperature sensor 18; Wherein motor 1, magnetic receiver 2, magnet 3, magnetic agitation 4 are assembled into magnetic stirring apparatus, and magnetic receiver 2 is installed on the main shaft of motor 1, and magnet 3 is installed on the magnetic receiver 2, and magnetic agitation 4 places the bottom of cuvette 8; Cuvette 8 is the fiber ratio color ware; The glass cap 9 that has vent port 10 covers on cuvette 8, and the bottom of cuvette 8 is provided with liquid in-out mouth 17, and heating plate 16 is installed; The both sides, lower end of cuvette 8 are installed light emitting diode 5 and extinction battery 14 respectively; Connect incident optical 6 between cuvette 8 and the light emitting diode 5, be connected with lens 15 and outgoing optical fiber 13 between extinction battery 14 and the cuvette 8 in turn, incident optical 6 has 1/3 part to stretch in the cuvette 8 respectively with outgoing optical fiber 13; The light path of light emitting diode 5, incident optical 6, outgoing optical fiber 13, selenium cell 14, lens 15 point-blank; The outer wall of cuvette 8 is enclosed with aluminium block 11, is filled with heat-conducting silicone grease 7 between the two, is provided with 8 grooves around the outside of aluminium block 11, and heating plate 16 is placed in the groove of aluminium block 11, and the framework 12 that is used for fixing heating plate 16 is fixed on the aluminium block 11; The inside of aluminium block 11 is designed with the circular hole that is used to hold temperature sensor 18 near the medium position of cuvette 8.
Shown in Figure 4 is the utility model constant temperature fiber ratio color titration apparatus embodiment structural representation, comprises gauge line 19, liquid level detector 20, peristaltic pump 21, multi-position valve 22, water sample, potassium permanganate, sulfuric acid, sodium oxalate.Wherein water sample, potassium permanganate, sulfuric acid, sodium oxalate are connected with the distribution port of multi-position valve 22 respectively; The lower end of gauge line 19 is connected with the public port of multi-position valve 22; Peristaltic pump 21 is connected through the upper end of a pipeline with gauge line 19, and liquid level detector 20 is installed in the upper end of gauge line 19, and one of multi-position valve 22 is distributed port to be connected with liquid in-out mouth 17; Use the method for constant temperature fiber ratio color titration apparatus detection material, may further comprise the steps:
A. respectively water sample, sulfuric acid and the potassium permanganate of certain volume are pushed in the cuvette 8 through multi-position valve 22, peristaltic pump 21, gauge line 19, start magnetic stirring apparatus and begin to stir, heat temperature raising to 99 ℃ carries out constant temperature digestion, and liquid does not seethe with excitement in the digestion process;
B. clear up and finish, be cooled to 80 ℃, stop to stir;
C. through multi-position valve 22, peristaltic pump 21, gauge line 19 sodium oxalate of certain volume is pushed in the cuvette 8, begin to stir, and heated at constant temperature to 75 ℃;
D. pass through in multi-position valve 22, peristaltic pump 21, the potassium permanganate suction gauge line 19 with certain volume, peristaltic pump 21 control gauge lines 19 splash into potassium permanganate in cuvette 8 then, are heated to 75 ℃ of constant temperature, and sodium oxalate and potassium permanganate are fully reacted;
E. light emitting diode 5 emission light pass mixed solution, are received by selenium cell 14, judge whether the measuring light signal that selenium cell 14 receives reaches setting value; Promptly whether reach titration end-point,, then get into next step if result of determination reaches titration end-point; If do not reach titration end-point; Then get back to steps d, repeated several times, peristaltic pump 21 control gauge lines 19 splash into isopyknic potassium permanganate in cuvette 8; For being, promptly the light signal that receives of selenium cell 14 reaches setting value up to result of determination;
F. be cooled to 50 ℃, stop to stir, write down titration time, calculate the value of measured matter through inner equation.The utility model constant temperature fiber ratio color titration apparatus has the following advantages:
1. the utility model device has promptly all been installed heating plate in the outer wall and the bottom of cuvette around cuvette, and this design has realized the even heating and the constant temperature digestion of measured matter.
2. the utility model device has increased aluminium block and heat-conducting silicone grease on the basis of conventional art, not only realized the even heating of measured matter, and the cuvette programming rate is fast, has improved color speed.
3. the cuvette of the utility model device adopts the fiber ratio color ware, and connects incident optical and outgoing optical fiber in fiber ratio color ware both sides, has improved the conduction efficiency of light.
The utility model device adopt clear up, titration, colorimetric integrated design scheme, improved the reliability of Monitoring Data, reduced the production cost of monitoring instrument simultaneously.
Claims (7)
1. a constant temperature fiber ratio color titration apparatus comprises magnetic stirring apparatus, light emitting diode, incident optical, cuvette, glass cap, vent port, framework, outgoing optical fiber, selenium cell, lens, liquid in-out mouth, temperature sensor; Said magnetic stirring apparatus is installed in the bottom of said cuvette, and the said glass cap that has said vent port is on said cuvette, and the bottom of said cuvette is provided with said liquid in-out mouth; The both sides, lower end of said cuvette are installed said light emitting diode and said extinction battery respectively; Connect incident optical between said cuvette and the light emitting diode; Be connected with lens and outgoing optical fiber between said extinction battery and the cuvette in turn, it is characterized in that: also comprise aluminium block, heating plate and heat-conducting silicone grease, the bottom of said cuvette is equipped with heating plate; The outer wall of said cuvette is enclosed with said aluminium block; Be filled with said heat-conducting silicone grease between the two, be provided with the groove that is used to place said heating plate around the outside of said aluminium block, the said frame fixation that is used for fixing said heating plate is on said aluminium block; The indoor design of said aluminium block is useful on the circular hole that holds said temperature sensor.
2. constant temperature fiber ratio color titration apparatus according to claim 1 is characterized in that: said cuvette is the fiber ratio color ware.
3. constant temperature fiber ratio color titration apparatus according to claim 1 is characterized in that: said incident optical and said outgoing optical fiber have 1/3 part to stretch in the cuvette respectively.
4. constant temperature fiber ratio color titration apparatus according to claim 1 is characterized in that: being provided with the groove that is used to place said heating plate around the said aluminium block outside has 8.
5. constant temperature fiber ratio color titration apparatus according to claim 1; It is characterized in that: said magnetic stirring apparatus is made up of motor, magnetic receiver, magnet and magnetic agitation; Said magnet is installed on the said magnetic receiver; Said magnetic receiver is installed on the main shaft of said motor, and said magnetic agitation places the bottom of cuvette.
6. constant temperature fiber ratio color titration apparatus according to claim 1 is characterized in that: the circular hole that is used to hold said temperature sensor is positioned at the position of said aluminium block inside near the cuvette middle part.
7. constant temperature fiber ratio color titration apparatus according to claim 1 is characterized in that: the light path of said light emitting diode, incident optical, outgoing optical fiber, selenium cell, lens point-blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205002202U CN202548057U (en) | 2011-12-06 | 2011-12-06 | Constant-temperature optical fiber colorimetric titration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205002202U CN202548057U (en) | 2011-12-06 | 2011-12-06 | Constant-temperature optical fiber colorimetric titration device |
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| CN202548057U true CN202548057U (en) | 2012-11-21 |
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| CN2011205002202U Expired - Fee Related CN202548057U (en) | 2011-12-06 | 2011-12-06 | Constant-temperature optical fiber colorimetric titration device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495058A (en) * | 2011-12-06 | 2012-06-13 | 广州市怡文环境科技股份有限公司 | Constant-temperature fiber optic colorimetric titration device and detection method thereof |
| CN103063577A (en) * | 2012-12-27 | 2013-04-24 | 山西华顿实业有限公司 | Low-temperature stability analyzing apparatus for methanol gasoline |
| CN106124287A (en) * | 2016-06-13 | 2016-11-16 | 山东思睿环境设备科技有限公司 | High Temperature High Pressure clears up fiber ratio color system |
-
2011
- 2011-12-06 CN CN2011205002202U patent/CN202548057U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495058A (en) * | 2011-12-06 | 2012-06-13 | 广州市怡文环境科技股份有限公司 | Constant-temperature fiber optic colorimetric titration device and detection method thereof |
| CN103063577A (en) * | 2012-12-27 | 2013-04-24 | 山西华顿实业有限公司 | Low-temperature stability analyzing apparatus for methanol gasoline |
| CN106124287A (en) * | 2016-06-13 | 2016-11-16 | 山东思睿环境设备科技有限公司 | High Temperature High Pressure clears up fiber ratio color system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510730 Guangzhou economic and Technological Development Zone, Guangdong City, South Road, No. three, No. 12 Patentee after: Yiwen Environmental Science Technology Co., Ltd. Address before: 3 building, B building, No. 885 Shenzhou Road, Guangzhou Science City, Guangdong, Guangzhou, Luogang District 510335, China Patentee before: Yiwen Environmental Science Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20191206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |