CN204154640U - Pick-up unit and there is the water quality on-line detecting system of this pick-up unit - Google Patents
Pick-up unit and there is the water quality on-line detecting system of this pick-up unit Download PDFInfo
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- CN204154640U CN204154640U CN201420574038.5U CN201420574038U CN204154640U CN 204154640 U CN204154640 U CN 204154640U CN 201420574038 U CN201420574038 U CN 201420574038U CN 204154640 U CN204154640 U CN 204154640U
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Abstract
The utility model discloses a kind of pick-up unit and have the water quality on-line detecting system of this pick-up unit, this pick-up unit comprises detection cell, and detection cell is provided with reagent inlet, sample water inlet, air intake, overflow vent and leakage fluid dram; Detection cell is also provided with stirring port, and stirring port connects the mixing pump for stirring mixing material in detection cell, the controller of mixing pump connection control mixing pump work; Detection cell is also provided with heating arrangement and the temperature sensor for detecting detection cell wall body temperature, and controller receives the signal of temperature sensor and controls the work of heating arrangement.Pick-up unit disclosed in the utility model achieves the Multifunctional designs such as reaction, heating, temperature control, stirring, detection and overflow, this pick-up unit takes up room little, save installing component, the consumption of water sample and reagent all has and significantly reduces, and owing to adopting long light path design, detection sensitivity is high.
Description
Technical field
The utility model relates to water quality on-line checkingi field, especially, relates to a kind of pick-up unit.In addition, the utility model also relates to a kind of water quality on-line detecting system comprising above-mentioned detection device.
Background technology
At present, first the workflow of water quality online analyzer device is that water sample to be measured is injected detection cell, and then pass through control system, reagent is quantitatively injected detection cell successively, there is chemical reaction, nitrite ion after having reacted is measured by Systems for optical inspection, to record the parameters of detected water sample.The water quality online analyzer of present stage is all adopt negative pressure device that water sample and reagent are delivered to detection cell, and the more negative pressure device of current application has peristaltic pump, ram pump adds level sensing, pulse pump etc.
Adopt peristaltic pump input mode, reagent consumption is large, and maintenance is large; Adopt ram pump to add the input mode of level sensing, sample introduction low precision, cross pollution is serious; Adopt pulse pump input mode, though sample introduction precision improves, but it is expensive.In addition, above-mentioned input mode requires that reagent bottle can not seal completely, and the chance that reagent contacts with surrounding air increases, and shortens the shelf-life of reagent.
And the reaction of the analytical instrument of water quality of current a lot of colourimetry and detect and need to carry out in two different devices, first in reaction tank, chemical reaction is completed, after colour developing completes, add detection cell again and carry out Photoelectric Detection, need the cooperation of multiple device just can complete the functions such as reaction, stirring, heating, detection; Cause taking up room of pick-up unit large, controlling unit is many, and cost is high.
Utility model content
The utility model object is the water quality on-line detecting system providing a kind of pick-up unit and have this pick-up unit, many with the installing component solving existing water quality detection instrument, take up room large and that accuracy of detection is low technical matters.
For achieving the above object, the technical solution adopted in the utility model is as follows:
According to an aspect of the present utility model, a kind of pick-up unit is provided, comprise detection cell, detection cell be provided with reagent inlet for importing reagent, for import water sample to be measured sample water inlet, for the air intake of air communication, for water sample to be measured is carried out measuring fixed amount overflow vent and for discharge in detection cell detect after the leakage fluid dram of liquid;
Detection cell is also provided with stirring port, and stirring port connects the mixing pump for stirring mixing material in detection cell, the controller of mixing pump connection control mixing pump work;
Detection cell is also provided with heating arrangement and the temperature sensor for detecting detection cell wall body temperature, and controller receives the signal of temperature sensor and controls the work of heating arrangement.
Further, detection cell comprises longitudinal section of longitudinally setting and is communicated with and the tilting section be obliquely installed with the lower end of longitudinal section, the sidewall of longitudinal section is provided with overflow vent, the upper end open of longitudinal section and be provided with gland bonnet, reagent inlet, sample water inlet and air intake are all located on gland bonnet, leakage fluid dram is positioned at the lower end of tilting section, and heating arrangement is located in the outer peripheral sidewall of tilting section.
Further, also comprise for clamping and locating the mount pad of tilting section, mount pad is provided with the grasping part matched with tilting section, mount pad along tilting section axis direction one end arranges light source component, the other end arranges light activated element, light source component is corresponding with light activated element to be arranged.
Further, light source component is connected to mount pad through the first retaining sleeve, and/or
Light activated element is connected to mount pad through the second retaining sleeve.
Further, the first retaining sleeve and/or the second retaining sleeve adjustable along the axis direction of tilting section.
Further, leave the first gap between the end that light source component is corresponding with tilting section, the first gap location light be provided with for being sent by light source is converted to the first lens of directional light, and/or
Leave the second gap between the end that light activated element is corresponding with tilting section, the second gap location is provided with for the second lens by the light focusing through tilting section.
Further, the first lens and/or the second lens are connected to mount pad through locating sleeve.
According to another aspect of the present utility model, additionally provide a kind of water quality on-line detecting system, comprise above-mentioned pick-up unit, this system also comprises reagent intake line and water sample intake line, reagent intake line is communicated with reagent inlet, and water sample intake line is communicated with sample water inlet.
Further, reagent intake line adopts positive-pressure conveying device.
Further, positive-pressure conveying device comprises: the liquid storage container that sealing is arranged, and liquid storage container is through transfer pipeline communication with detection pond, and liquid storage container is also communicated with for the potential source mechanism providing constant pressure in liquid storage container, and on transfer pipeline, correspondence is provided with solenoid valve.
The utility model has following beneficial effect:
The utility model by arranging stirring port on detection cell, and stirring port connects mixing pump realization to mixing material being uniformly mixed in detection cell, and by arranging heating arrangement and temperature sensor on detection cell, realize the computer heating control to detection cell, and then achieve the reaction of detection cell, heating, temperature control, stir, the functions such as detection and overflow, this pick-up unit takes up room little, save installing component, the consumption of water sample and reagent all has and significantly reduces, and owing to adopting long light path design, detection sensitivity is high, be particularly useful for the on-line monitoring of micro substance in water.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model preferred embodiment detection cell;
Fig. 2 is the structural representation of the pick-up unit of the utility model preferred embodiment band mount pad; And
Fig. 3 is the structural representation of the utility model preferred embodiment water quality on-line detecting system.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1, preferred embodiment of the present utility model provides a kind of pick-up unit, this pick-up unit comprises detection cell 10, detection cell 10 be provided with reagent inlet for importing reagent, for import water sample to be measured sample water inlet, for the air intake of air communication, for water sample to be measured is carried out measuring fixed amount overflow vent 13 and for discharging the leakage fluid dram 15 detecting liquid afterwards in detection cell 10; Detection cell 10 is also provided with stirring port 17, and stirring port 17 connects the mixing pump for stirring mixing material in detection cell 10, the controller of mixing pump connection control mixing pump work; Detection cell 10 is also provided with heating arrangement and the temperature sensor 16 for detecting detection cell 10 wall body temperature, and controller receives the signal of temperature sensor 16 and controls the work of heating arrangement.When the present embodiment detection cell 10 works, first water sample to be measured is imported in detection cell 10 through sample water inlet, preferably, first close overflow vent 13, by controlling the break-make of leakage fluid dram 15, to utilize water sample to be measured to clean detection cell 10, wherein, overflow vent 13, for carrying out measuring fixed amount to water sample to be measured, makes the water sample to be measured in detection cell 10 be positioned at overflow vent 13 place, the various reagent needed for reaction are imported successively again through reagent inlet, under the effect of controller, often add a reagent, mixing pump time opening stirs, in the present embodiment, mixing pump adopts air pump, to make mixing material fully reaction in detection cell 10, and in order to provide the environment meeting temperature requirement in course of reaction, in the present embodiment, detection cell 10 is provided with heating arrangement and temperature sensor 16, controller controls heating arrangement by receiving the temperature signal detected, thermostatic control in realization response process, to improve accuracy of detection, and optical detection can be carried out in detection cell 10 through reacted mixing material, the light of specific wavelength is sent by light source, through light activated element, the light signal of test is converted to electric signal again, and import processor through circuit input interface, to complete analysis and the display of water quality testing data.The present embodiment pick-up unit, achieve the Multifunctional design integrating reaction, heating, temperature control, stirring, detection and overflow, and pick-up unit takes up room little, save installing component, the consumption of water sample and reagent all has and significantly reduces, owing to adopting long light path design, detection sensitivity is high, is particularly useful for the on-line monitoring of micro substance in water.
Alternatively, in order to reduce taking up room of pick-up unit further, detection cell 10 comprises longitudinal section 11 of longitudinally setting and is communicated with and the tilting section 12 be obliquely installed with the lower end of longitudinal section 11, the sidewall of longitudinal section 11 is provided with overflow vent 13, the upper end open of longitudinal section 11 and be provided with gland bonnet 14, reagent inlet, sample water inlet and air intake are all located on gland bonnet 14, and leakage fluid dram 15 is positioned at the lower end of tilting section 12, and heating arrangement is located in the outer peripheral sidewall of tilting section 12.In the present embodiment, detection cell 10 seals through gland bonnet 14, and reagent inlet, sample water inlet, air intake are all located on gland bonnet 14, facilitates the processing and manufacturing of detection cell 10, reduces manufacturing cost.Preferably, tilting section 12 is set to long light path detection segment, and its light path can select 3cm, 5cm, 6cm etc. according to the content of test substance, but is not limited thereto.
Alternatively, in the present embodiment, heating arrangement is be wrapped in the heater strip on tilting section 12 outer wall.Preferably, be conveniently wound around heater strip, the outer peripheral sidewall of tilting section 12 is provided with annular groove 121; And annular groove 121 is arranged along the axial uniform intervals of tilting section 12, to ensure the homogeneous heating of tilting section 12 inner space.
Preferably, in order to reduce installation component, convenient and swift detection and use, with reference to Fig. 2, the present embodiment pick-up unit also comprises for clamping and locating the mount pad 20 of tilting section 12, and mount pad 20 is provided with the grasping part matched with tilting section 12.In the present embodiment, the two ends of tilting section 12 arrange installation protuberance respectively, and mounting hole is provided with on installation protuberance, relative set mounting hole on mount pad 20, tilting section 12 is connected with the locking member of mount pad 20 through through mounting hole, certainly, it will be understood by those skilled in the art that mount pad 20 and tilting section 12 can also adopt other modes such as clamping to be connected.In the present embodiment, mount pad 20 arranges light source component 21 in the axis direction one end along tilting section 12, the other end arranges light activated element 22, and light source component 21 is corresponding with light activated element 22 to be arranged.In the present embodiment, light source component 22 selects light emitting diode, and this light emitting diode sends the monochromatic cold light source with fixed wave length.
Alternatively, light source component 21 is connected to mount pad 20 through the first retaining sleeve 211, and/or light activated element 22 is connected to mount pad 20 through the second retaining sleeve 221.Like this, conveniently light source component 21 and/or light activated element 22 are changed.
Alternatively, the first gap is left between the end that light source component 21 is corresponding with tilting section 12, the first gap location light be provided with for being sent by light source is converted to the first lens 23 of directional light, and/or leaving the second gap between light activated element 22 end corresponding with tilting section 12, the second gap location is provided with for the second lens 24 by the light focusing through tilting section 12.Wherein, the first lens 23 are collimation lens, for reaction provides monochromatic collimated beam; Second lens 24 are condenser lens, by the parallel light focusing through detection cell 10 on light activated element 22, improve the sensitivity detected.Those skilled in the art, can select at light source component 21 side and/or light activated element 22 side mounted lens according to actual conditions.Preferably, at the equal mounted lens in light source component 21 side and light activated element 22 side, to improve the precision of detection.Alternatively, the first lens 23 and/or the second lens 24 are connected to mount pad 20 through locating sleeve 25, to facilitate the installation and removal of lens.
Alternatively, light source component 21 and/or light activated element 22 adjustable along the axis direction of tilting section 12, in the present embodiment, alternatively, by regulating the first retaining sleeve 211 and/or the second retaining sleeve 221 along the installation site on the axis direction of tilting section 12, realize the position adjustments of light source component 21 and/or light activated element 22, thus focus, meet optically focused requirement.In the present embodiment, alternatively, first retaining sleeve 211 is positioned on mount pad 20 through locknut 212 clamping, when needing the position of adjustment first retaining sleeve 211, by unscrewing locknut 212, regulate the installation site of the first retaining sleeve 211, can realize being arranged on the distance between light source component 21 on the first retaining sleeve 211 and the first lens 23, when being adjusted to suitable distance, tighten locknut 212, get final product fixed light source element 21 and the first retaining sleeve 211, to realize focus adjustment, improve Detection results.Preferably, the second retaining sleeve 221 can adopt locking-positioning structure as similar in the first retaining sleeve 211.
With reference to Fig. 3, according to another aspect of the present utility model, additionally provide a kind of water quality on-line detecting system, comprise the pick-up unit of above-described embodiment, this system also comprises reagent intake line 30 and water sample intake line 40, reagent intake line 30 is communicated with reagent inlet, and water sample intake line 40 is communicated with sample water inlet.
In order to improve the sample introduction precision of reagent, reagent intake line 30 adopts positive-pressure conveying device.With reference to Fig. 3, positive-pressure conveying device comprises: the liquid storage container 31 that one or more sealing is arranged, liquid storage container 31 is through transfer pipeline communication with detection pond 10, and liquid storage container 31 is also communicated with and is used for the potential source mechanism 32 providing constant pressure in liquid storage container 31, and on transfer pipeline, correspondence is provided with solenoid valve 33.With reference to Fig. 3, in the present embodiment, liquid storage container 31 comprises four reagent bottles, is respectively 31A-31D, and each reagent bottle all adopts seal bottle cap, and the chance that reagent is contacted with surrounding air reduces, and extends the shelf-life of reagent.Alternatively, the bottom that transfer pipeline is positioned at reagent bottle is connected to reagent filtration countersunk head, and this filtration countersunk head is positioned at the bottom of reagent bottle, to strengthen the filtration cleaning performance to exporting reagent.Each reagent bottle transfer pipeline that correspondence one is independent respectively, relative set solenoid valve 33 on each transfer pipeline, thus avoid the problem of cross pollution between reagent, further increase accuracy of detection.
In the present embodiment, alternatively, potential source mechanism 32 comprises the pressure source 321, reduction valve 322, the pressure-regulating valve 323 that connect successively, wherein, pressure-regulating valve 323 provides constant pressure for system, pressure-regulating valve 323 connects gas path distributor 326 through three relief valve 325, two ends connecting tee blowdown valve 325 and the pressure transducer 327 respectively of gas path distributor 326, pressure transducer 327 is by the pressure in detection system, when intrasystem pressure exceeds the constant voltage value scope of setting, controller can send alerting signal; When intrasystem pressure exceedes the safety value of setting, the normally closed port that controller can control three relief valve 325 is opened, and by intrasystem air release, can stop current testing process simultaneously and send alerting signal.In the present embodiment, conveying gas is so far divided into four tunnels by three relief valve 325, delivers gas in reagent bottle 31A, 31B, 31C, the 31D with sealed reagent lid by reagent delivery pipeline; The opened/closed of solenoid valve 30 realizes the interpolation of reagent, and controller determines the addition of reagent by the opened/closed time interval of accurate Controlling solenoid valve 30.Preferably, be provided with master control solenoid valve 324 between three relief valve 325 and pressure-regulating valve 323, when master control solenoid valve 324 is for three relief valve 325 faults, pressure transducer 327 does not reach emergency cut-off during predetermined pressure.
With reference to Fig. 3, in the present embodiment system, the gland bonnet 14 of detection cell 10 has six circular holes, connect respectively a water sample pipe, four Reagent Tubes and and air communication, realize adding of water sample to be measured and reagent.Preferably, overflow vent 13 place of detection cell 10 is provided with liquid level detector 19, and liquid level detector 19 is connected with controller, when water sample interrupts, controller generates according to the detection signal of liquid level detector 19 and lacks sample alerting signal, thus reminds staff, improves the intelligent level of pick-up unit.Stirring port 17 place is communicated with mixing pump 18, for the mix and blend of water sample to be measured and reagent provides power.In the present embodiment, the pipeline of overflow vent 13 and the pipeline of leakage fluid dram 15 arrange solenoid valve respectively, and is jointly connected to discharging of waste liquid pipeline.
The workflow of the present embodiment system is as follows:
First water sample to be measured enters in detection cell 10 by the solenoid valve on water sample intake line 40, solenoid valve on the pipeline of overflow vent 13 is in closed condition, by the solenoid valve time switch on the pipeline of leakage fluid dram 15, realize cleaning to detection cell 10, repeat above-mentioned action three times fully to clean detection cell 10.Certain hour opened by solenoid valve on the pipeline of then controlling water kick mouth 13, and the solenoid valve on the pipeline of leakage fluid dram 15 is failure to actuate, and is positioned at overflow vent 13 place to make the water sample to be measured in detection cell 10.Controller controls solenoid valve 33 time opening on each passage of reagent intake line 30 and closes, reagent in reagent bottle 31A, 31B, 31C, 31D is delivered to detection cell 10 by corresponding transfer pipeline by gas under pressure that provided by the pressure source 321 of outside, often add a kind of reagent, mixing pump 18 can stir by time opening, makes chemical reaction complete.After colour developing completes, the incident light that light source component 21 sends changes directional light into through the first lens 23, directional light is absorbed by chromophoric solution through detection cell 10, emergent light focuses on light activated element 22 through the second lens 24, light activated element 22 changes the light signal of test into electric signal, through electronic unit input circuit, enter processor system and carry out the work such as computing, display translation, judgement warning.
The present embodiment system adopts positive-pressure conveying device to realize the interpolation of reagent, under constant pressure, by controlling conveying of corresponding solenoid valve opening and closing time liquid, liquid consumption is little, metering accurately, its precision can reach less than 0.5%, is used on water quality online analyzer, improves accuracy and the precision of instrument.Overcome reagent consumption in traditional input mode large, sample introduction low precision, the problems such as reagent cross pollution simultaneously, and save the installing component of instrument, meet the miniaturization of water quality on-line instrument, intelligentized developing direction.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a pick-up unit, it is characterized in that, comprise detection cell (10), described detection cell (10) be provided with reagent inlet for importing reagent, for import water sample to be measured sample water inlet, for the air intake of air communication, for described water sample to be measured is carried out measuring fixed amount overflow vent (13) and for discharging the leakage fluid dram (15) detecting liquid afterwards in described detection cell (10);
Described detection cell (10) is also provided with stirring port (17), described stirring port (17) connects the mixing pump for stirring described detection cell (10) interior mixing material, the controller of mixing pump work described in described mixing pump connection control;
Described detection cell (10) is also provided with heating arrangement and the temperature sensor (16) for detecting described detection cell (10) wall body temperature, and described controller receives the signal of described temperature sensor (16) and controls the work of described heating arrangement.
2. pick-up unit according to claim 1, is characterized in that,
Described detection cell (10) comprises longitudinal section (11) of longitudinally setting and is communicated with and the tilting section be obliquely installed (12) with the lower end of described longitudinal section (11), the sidewall of described longitudinal section (11) is provided with described overflow vent (13), the upper end open of described longitudinal section (11) and be provided with gland bonnet (14), described reagent inlet, described sample water inlet and described air intake are all located on described gland bonnet (14), described leakage fluid dram (15) is positioned at the lower end of described tilting section (12), described heating arrangement is located in the outer peripheral sidewall of described tilting section (12).
3. pick-up unit according to claim 2, is characterized in that,
Also comprise for clamping and locating the mount pad (20) of described tilting section (12), described mount pad (20) is provided with the grasping part matched with described tilting section (12), described mount pad (20) arranging light source component (21) along axis direction one end of described tilting section (12), the other end arranges light activated element (22), described light source component (21) is corresponding with described light activated element (22) to be arranged.
4. pick-up unit according to claim 3, is characterized in that,
Described light source component (21) is connected to described mount pad (20) through the first retaining sleeve (211), and/or
Described light activated element (22) is connected to described mount pad (20) through the second retaining sleeve (221).
5. pick-up unit according to claim 4, is characterized in that,
Described first retaining sleeve (211) and/or described second retaining sleeve (221) adjustable along the axis direction of described tilting section (12).
6., according to the arbitrary described pick-up unit of claim 3 to 5, it is characterized in that,
The first gap is left between the end that described light source component (21) is corresponding with described tilting section (12), the described first gap location light be provided with for being sent by described light source is converted to first lens (23) of directional light, and/or
Leave the second gap between the end that described light activated element (22) is corresponding with described tilting section (12), described second gap location is provided with for will through second lens (24) of the light focusing of described tilting section (12).
7. pick-up unit according to claim 6, is characterized in that,
Described first lens (23) and/or described second lens (24) are connected to described mount pad (20) through locating sleeve (25).
8. a water quality on-line detecting system, it is characterized in that, comprise the arbitrary described pick-up unit of claim 1 to 7, described system also comprises reagent intake line (30) and water sample intake line (40), described reagent intake line (30) is communicated with described reagent inlet, and described water sample intake line (40) is communicated with described sample water inlet.
9. water quality on-line detecting system according to claim 8, is characterized in that, described reagent intake line (30) adopts positive-pressure conveying device.
10. water quality on-line detecting system according to claim 9, it is characterized in that, described positive-pressure conveying device comprises: the liquid storage container (31) that sealing is arranged, described liquid storage container (31) is communicated with described detection cell (10) through transfer pipeline, described liquid storage container (31) is also communicated with and is used for the potential source mechanism (32) providing constant pressure in described liquid storage container (31), and on described transfer pipeline, correspondence is provided with solenoid valve (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574038.5U CN204154640U (en) | 2014-09-29 | 2014-09-29 | Pick-up unit and there is the water quality on-line detecting system of this pick-up unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574038.5U CN204154640U (en) | 2014-09-29 | 2014-09-29 | Pick-up unit and there is the water quality on-line detecting system of this pick-up unit |
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| CN204154640U true CN204154640U (en) | 2015-02-11 |
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| CN201420574038.5U Active CN204154640U (en) | 2014-09-29 | 2014-09-29 | Pick-up unit and there is the water quality on-line detecting system of this pick-up unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115901A (en) * | 2015-09-30 | 2015-12-02 | 力合科技（湖南）股份有限公司 | Water quality detection pool and water quality detection device |
| CN104297178B (en) * | 2014-09-29 | 2016-08-24 | 力合科技（湖南）股份有限公司 | Detect device and there is the water quality on-line detecting system of this detection device |
| CN114894252A (en) * | 2022-05-13 | 2022-08-12 | 宁波水表(集团)股份有限公司 | Online water quality measuring device capability test system |
-
2014
- 2014-09-29 CN CN201420574038.5U patent/CN204154640U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297178B (en) * | 2014-09-29 | 2016-08-24 | 力合科技（湖南）股份有限公司 | Detect device and there is the water quality on-line detecting system of this detection device |
| CN105115901A (en) * | 2015-09-30 | 2015-12-02 | 力合科技（湖南）股份有限公司 | Water quality detection pool and water quality detection device |
| CN114894252A (en) * | 2022-05-13 | 2022-08-12 | 宁波水表(集团)股份有限公司 | Online water quality measuring device capability test system |
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