CN214539439U - Full-automatic water quality COD analytical equipment - Google Patents
Full-automatic water quality COD analytical equipment Download PDFInfo
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- CN214539439U CN214539439U CN202120751546.6U CN202120751546U CN214539439U CN 214539439 U CN214539439 U CN 214539439U CN 202120751546 U CN202120751546 U CN 202120751546U CN 214539439 U CN214539439 U CN 214539439U
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Abstract
The utility model provides a full-automatic water quality COD analytical equipment, including frame, sample fence, sample heating module and drive the first removal actuating mechanism of its translation, condensation backward flow unit and drive the first lift actuating mechanism, XYZ axle manipulator, a plurality of independent confession liquid unit and titration detecting element that go up and down. The XYZ-axis manipulator transfers the sample cup from the sample column to the sample heating module, the first moving driving mechanism and the first lifting driving mechanism realize seamless butt joint of the condensing reflux unit and the sample cup, and after heating digestion is completed, the XYZ-axis manipulator transfers the sample cup to the titration detection unit for titration analysis; the automation of the whole detection process is realized, the unattended test of a large number of samples can be realized, the manual error is avoided, the stability and the accuracy of test data are ensured, and the experimental efficiency is improved.
Description
Technical Field
The utility model relates to a quality of water COD detects technical field, specifically is a full-automatic water quality COD analytical equipment.
Background
When monitoring the pollution degree of water, the Chemical Oxygen Demand (COD) of water is an important measurement index. The dichromate method (HJ828-2017) for determining the chemical oxygen demand of water is a currently accepted standard detection method.
In the chinese patent document with application publication No. CN110531096A, a full-automatic water quality COD robot analyzer is disclosed, which adopts a bottle plug to cover a test tube port to prevent volatilization during digestion, needs to perform opening and closing actions of the bottle plug many times, and easily makes the bottle plug automatically collapse during heating, and the mechanical movement is tedious, the occupied volume is large, and the experimental efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a full-automatic water quality COD analysis device.
In order to achieve the above object, the technical solution of the present invention is: a full-automatic water quality COD analytical equipment includes:
the device comprises a rack, wherein a sample taking and placing station, a transfer station and a heating digestion station are arranged in the rack;
the sample column is arranged at the sample taking and placing station and is used for placing the sample cup;
the sample heating module is used for heating the sample cup;
the first moving driving mechanism is used for driving the sample heating module to move between the transfer station and the heating digestion station;
the condensing reflux unit is arranged above the heating digestion station, and a condenser pipe of the condensing reflux unit is pressed against the opening part of the sample cup on the sample heating module during heating digestion;
the first lifting driving mechanism is used for driving the condensation reflux unit to move up and down;
an XYZ-axis manipulator for grasping the sample cup to shift the sample cup between the sample column and the sample heating module;
a plurality of independent liquid supply units for controlling supply of different reagents, respectively;
the first liquid adding head is arranged on the gripper of the XYZ-axis manipulator and is provided with a plurality of liquid outlets communicated with different reagent independent liquid supply units;
the second liquid adding head is arranged above the condensation reflux unit, and a plurality of liquid outlets communicated with different reagent independent liquid supply units are formed in the second liquid adding head;
the second moving driving mechanism is used for driving the second liquid adding head to move so as to enable the second liquid adding head to sequentially move to positions right above the condensing pipes of the condensing reflux unit;
and the titration detection unit is used for carrying out titration detection on the sample subjected to heating digestion in the sample cup.
By adopting the technical scheme of the utility model, the XYZ-axis manipulator transfers the sample cup from the sample column to the sample heating module, the first moving driving mechanism and the first lifting driving mechanism realize the seamless butt joint of the condensation reflux unit and the sample cup, and after the heating and digestion is completed, the XYZ-axis manipulator transfers the sample cup to the titration detection unit for titration analysis; the automation of the whole detection process is realized, the unattended test of a large number of samples can be realized, the manual error is avoided, the stability and the accuracy of test data are ensured, and the experimental efficiency is improved.
Furthermore, the sample column comprises a column frame main body, a first layer plate and a second layer plate, wherein a plurality of through holes matched with the outer diameter of the sample cup are formed in the first layer plate and the second layer plate, the first layer plate and the second layer plate are arranged in parallel up and down, and the through holes matched and corresponding to the first layer plate and the second layer plate are coaxial along the vertical axis; the front side and the rear side of the hurdle frame body are provided with vent holes, and the rear side of the hurdle frame body is provided with a cooling fan.
By adopting the preferable scheme, the position precision and the stability of the sample cup on the sample column are improved, and the rapid heat dissipation after the digestion is finished is improved by the heat dissipation fan.
Further, the sample columns comprise a first sample column and a second sample column, and the first sample column and the second sample column are arranged on the sample taking and placing station side by side.
By adopting the preferable scheme, the sample can be conveniently replaced, and uninterrupted analysis operation can be carried out.
Further, a first stirring bar is arranged between the first sample bar and the second sample bar, a first stirring motor is arranged below the first stirring bar, a magnetic part is arranged on the first stirring motor, and the first stirring motor drives magnetic beads in a sample cup of the first stirring bar to stir; titrate the detecting element and including titrating detection fence, color detection sensor, second agitator motor, third liquid feeding head and turning to actuating mechanism, titrate the detection fence and set up between first sample fence and the second sample fence, turn to actuating mechanism and set up titrate detection fence limit portion, third liquid feeding head is installed turn to actuating mechanism's rocking arm is last, the overhead liquid outlet that is equipped with a plurality of and different independent liquid supply unit intercommunications of reagent of third liquid feeding, second agitator motor sets up titrate detection fence below, be equipped with magnetic force spare on the second agitator motor, second agitator motor drives titrate the magnetic bead stirring in the sample cup on the detection fence.
By adopting the preferable scheme, the first stirring fence is used for thermally stirring after digestion, so that digested sample acid water is mixed, and the phenomenon that water floats above acid to influence the heat dissipation is prevented; the second stirring motor can promote reagent mixing and improve titration detection efficiency.
Further, the XYZ-axis manipulator comprises an X-direction translation mechanism, a Y-direction translation mechanism, a Z-direction lifting mechanism and a clamping jaw mechanism, wherein a base of the Y-direction translation mechanism is mounted at the upper part of the rack, a base of the X-direction translation mechanism is mounted on a moving part of the Y-direction translation mechanism, and a base of the Z-direction lifting mechanism is mounted on a moving part of the X-direction translation mechanism.
Adopt above-mentioned preferred scheme, Y adopts two side support modes to install in the frame to translation mechanism's base for mechanism motion is steady, and it is high to snatch position precision.
Further, gripper mechanism includes electronic clamping jaw, claw piece and claw piece closed position detection sensor, the base of electronic clamping jaw is installed Z is to elevating system's lift removal part on, electronic clamping jaw drives the claw piece switching.
Adopt above-mentioned preferred scheme, simple structure can reliably snatch the sample cup.
Furthermore, a plurality of heating positions are arranged on the sample heating module, and a heat insulation protective shell is arranged on the sample heating module; the first moving driving mechanism comprises a translation slide rail, a screw mechanism and a driving motor, the sample heating module is installed on a slide block of the translation slide rail, and the driving mechanism drives the sample heating module to move between the transfer station and the heating digestion station through transmission of the screw mechanism.
By adopting the preferable scheme, the stability of the front and back translation transposition of the sample heating module is ensured.
Furthermore, the condensation reflux unit comprises a fixed frame and a plurality of condensation pipes, the condensation pipes are arranged on the fixed frame in a height-equal manner, each condensation pipe comprises an inner pipe body and an outer cavity surrounding the middle upper part of the periphery of the inner pipe body, openings are formed in the upper part and the lower part of the inner pipe body, cooling water is introduced into the outer cavity, a cooling water inlet and a cooling water outlet are formed in the outer cavity, and the outer cavities of the condensation pipes are connected in series through hoses; the cooling water supply unit is also included, an upstream cooling water inlet of a condensation pipe combination of the condensation reflux unit is connected with a water outlet of the cooling water supply unit, and a downstream cooling water outlet of the condensation pipe combination of the condensation reflux unit is connected with a water return port of the cooling water supply unit.
Adopt above-mentioned preferred scheme, improve condensation efficiency, prevent effectively that the volatile substance is excessive, improve and clear up efficiency.
Further, be equipped with spacing ring on the condenser pipe, be equipped with two rows of condenser pipes on the mount, the mount includes upper fixed plate, curb plate, bottom plate, support scute, goes up the division board, division board and bottom plate down, be equipped with a plurality of waist shape holes on the upper fixed plate, two condenser pipe peripheries match with the both ends in waist shape hole respectively, the last spacing ring of condenser pipe is located upper fixed plate waist shape hole top, it locates between the last spacing ring of two rows of condenser pipes to go up the division board, be equipped with a plurality of U-shaped holes on the bottom plate, the periphery of a condenser pipe matches with the interior cambered surface in U-shaped hole, the division board is located between two rows of condenser pipes down, the bottom plate is contradicted with one row of condenser pipe in the U-shaped hole outside spacing.
By adopting the preferable scheme, the installation of double rows of condensation pipes is convenient, the space is saved, and the sample flux of single digestion is improved.
Further, first lift actuating mechanism includes linear guide, motor lifter and motor, linear guide is vertical to be installed on the posterior lateral plate of frame, the curb plate of mount is installed on linear guide's slider, the motor drives through the motor lifter the mount of condensation backward flow unit is along linear guide and makes the lift removal.
Adopt above-mentioned preferred scheme, promote the stability that the condensation reflux unit goes up and down.
Furthermore, the independent liquid supply unit comprises an injection pump and a peristaltic pump which are connected with the reagent container through a liquid inlet pipeline and connected with a liquid outlet of the corresponding liquid adding head through a liquid outlet pipeline.
With the preferred embodiment, highly accurate measurement of the amount of the micro-fluid is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a second schematic structural diagram of an embodiment of the present invention;
fig. 3 is a third schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a schematic view of the construction of a reflux condenser unit;
FIG. 5 is a schematic view of the structure of the fixing frame;
FIG. 6 is a schematic view of the structure of the condensation duct;
fig. 7 is a schematic structural view of an XYZ-axis robot;
fig. 8 is a schematic view of the structure of the sample column.
Names of corresponding parts represented by numerals and letters in the drawings:
11-a frame; 12-sample column; 121-hurdle body; 122-first ply; 123-a second layer plate; 124-a heat radiation fan; 125-a vent; 126-first sample column; 127-second sample column; 13-sample heating module; 14-a first movement drive mechanism; 15-a condensing reflux unit; 151-a mount; 1511-upper fixing plate; 1512-side plates; 1513-lower fixing plate; 1514-support gussets; 1515-upper baffle plate; 1516-lower separator; 1517-lower sideboard; 152-a condenser tube; 1521-inner tube; 1522-outer chamber; 1523-upper confinement ring; 16-a first lift drive mechanism; 17-XYZ-axis robot; 171-X direction translation mechanism; a 172-Y direction translation mechanism; 173-Z direction lifting mechanism; 174-a jaw mechanism; 18-an independent liquid supply unit; 19-a first liquid addition head; 20-a second liquid adding head; 21-a second movement drive mechanism; 22-a titration detection unit; 221-titration detection column; 222-a third liquid adding head; 223-a steering drive mechanism; 23-a first mixing fence; 31-a sample pick-and-place station; 32-transfer station; 33-heating digestion station.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, a full automatic water COD analyzing apparatus comprises:
the device comprises a frame 11, wherein a sample taking and placing station 31, a transfer station 32 and a heating digestion station 33 are arranged in the frame;
a sample column 12, which is arranged at the sample taking and placing station 31 and is used for placing sample cups;
a sample heating module 13 for heating the sample cup;
the first moving driving mechanism 14 is used for driving the sample heating module 13 to move between the transfer station 32 and the heating digestion station 33;
a reflux condenser unit 15 which is arranged above the heating digestion station 33, and a condenser pipe 152 of the reflux condenser unit is pressed against the mouth of the sample cup on the sample heating module 13 during heating digestion;
a first lifting driving mechanism 16 for driving the condensing reflux unit 15 to move up and down;
an XYZ-axis robot 17 for grasping a sample cup to index the sample cup between the sample column 12 and the sample heating module 13;
a plurality of independent liquid supply units 18 for controlling supply of different reagents, respectively;
the first liquid adding head 19 is arranged on the gripper of the XYZ-axis manipulator 17, and a plurality of liquid outlets communicated with different independent reagent liquid supply units are formed in the first liquid adding head 19;
the second liquid adding head 20 is arranged above the condensation reflux unit 15, and a plurality of liquid outlets communicated with different reagent independent liquid supply units are formed in the second liquid adding head 20;
the second moving driving mechanism 21 is used for driving the second liquid adding head 20 to move so as to enable the second liquid adding head 20 to sequentially move right above each condensation pipe of the condensation reflux unit 15;
and the titration detection unit 22 is used for carrying out titration detection on the heated and digested sample in the sample cup.
The beneficial effect of adopting above-mentioned technical scheme is: the XYZ-axis manipulator transfers the sample cup from the sample column to the sample heating module, the first moving driving mechanism and the first lifting driving mechanism realize seamless butt joint of the condensing reflux unit and the sample cup, and after heating digestion is completed, the XYZ-axis manipulator transfers the sample cup to the titration detection unit for titration analysis; the automation of the whole detection process is realized, the unattended test of a large number of samples can be realized, the manual error is avoided, the stability and the accuracy of test data are ensured, and the experimental efficiency is improved.
As shown in fig. 8, in other embodiments of the present invention, the sample column 12 includes a column frame body 121, a first layer plate 122 and a second layer plate 123, a plurality of through holes matching with the outer diameter of the sample cup are disposed on the first layer plate 122 and the second layer plate 123, the first layer plate 122 and the second layer plate 123 are disposed in parallel up and down, and the through holes matching with the first layer plate 122 and the second layer plate 123 are coaxial along the vertical axis; the grill main body 121 is provided with vent holes 125 on the front and rear sides thereof, and a heat radiation fan 124 is attached to the rear side of the grill main body 121. The beneficial effect of adopting above-mentioned technical scheme is: the position precision and the stability of the sample cup on the sample column are improved, and the cooling fan improves the rapid cooling after the digestion is finished.
As shown in fig. 2 and 8, in other embodiments of the present invention, the sample column 12 includes a first sample column 126 and a second sample column 127, and the first sample column 126 and the second sample column 127 are disposed side by side at the sample taking and placing station 31. The beneficial effect of adopting above-mentioned technical scheme is: the sample can be conveniently replaced, and the analysis operation can be carried out uninterruptedly.
As shown in fig. 8, in other embodiments of the present invention, a first stirring bar 23 is disposed between the first sample bar 126 and the second sample bar 127, a first stirring motor is disposed below the first stirring bar 23, a magnetic member is disposed on the first stirring motor, and the first stirring motor drives the magnetic beads in the sample cup of the first stirring bar to stir; titration detection unit 22 includes titrates detection column 221, color detection sensor, second agitator motor, third liquid feeding head 222 and turns to actuating mechanism 223, titrates detection column 221 and sets up between first sample fence 126 and second sample fence 127, turns to actuating mechanism 223 and sets up at titrating detection column 221 limit portion, and third liquid feeding head 222 is installed on the rocking arm that turns to actuating mechanism 223, and third liquid feeding head 222 is last to be equipped with a plurality of liquid outlets that independently supply liquid unit intercommunication with different reagents, second agitator motor sets up titrate detection column below, be equipped with magnetic force spare on the second agitator motor, second agitator motor drives titrate the interior magnetic bead of sample cup on the detection column and stir. The beneficial effect of adopting above-mentioned technical scheme is: the first stirring bar is used for thermally stirring after digestion to mix digested sample acid water and prevent water floating above the acid from affecting heat dissipation; the second stirring motor can promote reagent mixing and improve titration detection efficiency.
As shown in fig. 7, in another embodiment of the present invention, the XYZ-axis robot 17 includes an X-direction translation mechanism 171, a Y-direction translation mechanism 172, a Z-direction elevating mechanism 173, and a gripper mechanism 174, the base of the Y-direction translation mechanism 172 is attached to the upper portion of the frame 11, the base of the X-direction translation mechanism 171 is attached to the moving member of the Y-direction translation mechanism 172, and the base of the Z-direction elevating mechanism 172 is attached to the moving member of the X-direction translation mechanism 171. The beneficial effect of adopting above-mentioned technical scheme is: the base of the Y-direction translation mechanism is installed on the rack in a bilateral supporting mode, so that the mechanism is stable in movement, and the grabbing position precision is high.
In other embodiments of the present invention, the clamping jaw mechanism 174 includes an electric clamping jaw, a jaw piece and a jaw piece closed position detection sensor, the base of the electric clamping jaw is installed on the lifting moving part of the Z-direction lifting mechanism, and the electric clamping jaw drives the jaw piece to open and close. The beneficial effect of adopting above-mentioned technical scheme is: simple structure can reliably snatch the sample cup.
As shown in fig. 1 and 2, in other embodiments of the present invention, a plurality of heating positions are disposed on the sample heating module 13, and a heat insulation protective housing is disposed on the sample heating module 13; the first mobile driving mechanism 14 comprises a translation slide rail, a screw mechanism and a driving motor, the sample heating module 13 is installed on a slide block of the translation slide rail, and the driving mechanism drives the sample heating module to move between the transfer station and the heating digestion station through transmission of the screw mechanism. The beneficial effect of adopting above-mentioned technical scheme is: the stability of the front and back translation transposition of the sample heating module is ensured.
As shown in fig. 4 and 6, in other embodiments of the present invention, the condensing and refluxing unit 15 includes a fixing frame 151 and a plurality of condensing tubes 152, the condensing tubes 152 are mounted on the fixing frame 151 at equal height, the condensing tubes 152 include an inner tube 1521 and an outer cavity 1522 surrounding the middle upper part of the outer periphery of the inner tube, openings are formed above and below the inner tube 1521, cooling water is introduced into the outer cavity 1522, a cooling water inlet and a cooling water outlet are formed in the outer cavity 1522, and the outer cavities 1522 of the condensing tubes are connected in series through hoses; the cooling water supply unit is also included, an upstream cooling water inlet of a condensation pipe combination of the condensation reflux unit is connected with a water outlet of the cooling water supply unit, and a downstream cooling water outlet of the condensation pipe combination of the condensation reflux unit is connected with a water return port of the cooling water supply unit. The beneficial effect of adopting above-mentioned technical scheme is: the condensation efficiency is improved, the volatile matter is effectively prevented from overflowing, and the digestion efficiency is improved.
As shown in fig. 4-6, in other embodiments of the present invention, be equipped with spacing ring 1523 on the condenser pipe 152, be equipped with two rows of condenser pipes on the mount 151, the mount 151 includes an upper fixed plate 1511, curb plate 1512, a bottom plate 1513, support gusset 1514, an upper separation plate 1515, a bottom separation plate 1516 and a bottom plate 1517, be equipped with a plurality of waist shape holes on the upper fixed plate 1511, two condenser pipe 152 peripheries match with the both ends in waist shape hole respectively, the last spacing ring 1523 of condenser pipe is located upper fixed plate 1511 waist shape hole top, an upper separation plate 1515 is located between the last spacing ring of two rows of condenser pipes, be equipped with a plurality of U-shaped holes on the bottom plate 1513, the periphery of a condenser pipe matches with the interior cambered surface in U-shaped hole, a bottom separation plate 1516 is located between two rows of condenser pipes, bottom plate 1517 conflicts with one row of condenser pipe that is in the U-shaped hole outside spacing. The beneficial effect of adopting above-mentioned technical scheme is: the installation of convenient double condenser pipe practices thrift the space, promotes the sample flux that the single was cleared up.
As shown in fig. 3, in other embodiments of the present invention, the first lifting driving mechanism 16 includes a linear guide, a motor lifting rod and a motor, the linear guide is vertically installed on the rear side plate of the rack, the side plate of the fixing frame is installed on the slider of the linear guide, and the motor drives the fixing frame of the condensation reflux unit to move up and down along the linear guide through the motor lifting rod. The beneficial effect of adopting above-mentioned technical scheme is: the lifting stability of the condensation reflux unit is improved.
In other embodiments of the present invention, the independent liquid supply unit 18 includes an injection pump and a peristaltic pump connected to the reagent container through a liquid inlet pipe and connected to the liquid outlet of the corresponding liquid adding head through a liquid outlet pipe. The beneficial effect of adopting above-mentioned technical scheme is: and the high-precision micro-liquid measurement is realized.
Generally, at least six independent liquid supply units are needed for supplying a potassium dichromate solution, a mercury sulfate solution, water, a sulfuric acid-silver sulfate solution, a ferroxyl indicator and an ammonium ferrous sulfate solution, wherein liquid outlets of the potassium dichromate solution and the mercury sulfate solution are communicated with a first liquid adding head, liquid outlets of the mercury sulfate solution and the water are communicated with a second liquid adding head, and liquid outlets of the ferroxyl indicator and the ammonium ferrous sulfate solution are communicated with a third liquid adding head of a titration detection unit. In order to adapt to the detection of various water samples, a greater number of independent liquid supply units need to be configured, for example, a low-concentration and high-concentration potassium dichromate solution liquid supply unit needs to be configured, and a low-concentration and high-concentration ferrous ammonium sulfate solution needs to be configured correspondingly, so as to be respectively used for the detection of low-pollution water samples and high-pollution water samples.
The following description will be given of the main operation process of water quality analysis with reference to an embodiment of the present invention:
1) firstly, respectively adding detection reagents into each independent liquid supply unit according to requirements;
2) placing a sample cup filled with a water sample to be detected into a sample column;
3) the sample heating module is transferred to a transfer station, an XYZ-axis manipulator transfers the sample cup from the sample column to a heating hole position of the sample heating module, and a potassium dichromate solution and a mercury sulfate solution are added;
4) the first moving driving mechanism drives the sample heating module to move to a heating digestion station, the first lifting driving mechanism drives the condensation reflux unit to descend, the condenser pipe is pressed against the opening of the sample cup, and a mercury sulfate solution is added from the upper part of the condenser pipe through the second liquid adding head;
5) starting circulating cooling water in the condensation reflux unit, and heating and digesting the sample by the sample heating module;
6) after digestion is finished, adding water into the second liquid adding head from the upper part of the condensing pipe;
7) the first lifting driving mechanism drives the condensation reflux unit to ascend, and the first moving driving mechanism drives the sample heating module to move to the transfer station;
8) the XYZ-axis manipulator sequentially moves the sample cup to the first stirring bar for stirring, then puts back to the sample bar, and starts the cooling fan for cooling;
9) and the XYZ-axis manipulator sequentially moves the sample cup to a titration detection unit for titration detection, and then the original hole position of the sample column is replaced to finish the water quality COD detection.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. The utility model provides a full-automatic water quality COD analytical equipment which characterized in that includes:
the device comprises a rack, wherein a sample taking and placing station, a transfer station and a heating digestion station are arranged in the rack;
the sample column is arranged at the sample taking and placing station and is used for placing the sample cup;
the sample heating module is used for heating the sample cup;
the first moving driving mechanism is used for driving the sample heating module to move between the transfer station and the heating digestion station;
the condensing reflux unit is arranged above the heating digestion station, and a condenser pipe of the condensing reflux unit is pressed against the opening part of the sample cup on the sample heating module during heating digestion;
the first lifting driving mechanism is used for driving the condensation reflux unit to move up and down;
an XYZ-axis manipulator for grasping the sample cup to shift the sample cup between the sample column and the sample heating module;
a plurality of independent liquid supply units for controlling supply of different reagents, respectively;
the first liquid adding head is arranged on the gripper of the XYZ-axis manipulator and is provided with a plurality of liquid outlets communicated with different reagent independent liquid supply units;
the second liquid adding head is arranged above the condensation reflux unit, and a plurality of liquid outlets communicated with different reagent independent liquid supply units are formed in the second liquid adding head;
the second moving driving mechanism is used for driving the second liquid adding head to move so as to enable the second liquid adding head to sequentially move to positions right above the condensing pipes of the condensing reflux unit;
and the titration detection unit is used for carrying out titration detection on the sample subjected to heating digestion in the sample cup.
2. The full-automatic water quality COD analysis device according to claim 1, wherein the sample column comprises a frame body, a first layer plate and a second layer plate, a plurality of through holes matched with the outer diameter of the sample cup are arranged on the first layer plate and the second layer plate, the first layer plate and the second layer plate are arranged in parallel up and down, and the through holes matched and corresponding to the first layer plate and the second layer plate are coaxial along the vertical axis; the front side and the rear side of the hurdle frame body are provided with vent holes, and the rear side of the hurdle frame body is provided with a cooling fan.
3. The fully automatic water COD analyzer according to claim 2, wherein the sample columns comprise a first sample column and a second sample column, and the first sample column and the second sample column are arranged side by side at the sample taking and placing station.
4. The full-automatic water COD analyzer according to claim 3, wherein a first stirring bar is arranged between the first sample bar and the second sample bar, a first stirring motor is arranged below the first stirring bar, a magnetic member is arranged on the first stirring motor, and the first stirring motor drives the magnetic beads in the sample cup of the first stirring bar to stir; titrate the detecting element and including titrating detection fence, color detection sensor, second agitator motor, third liquid feeding head and turning to actuating mechanism, titrate the detection fence and set up between first sample fence and the second sample fence, turn to actuating mechanism and set up titrate detection fence limit portion, third liquid feeding head is installed turn to actuating mechanism's rocking arm is last, the overhead liquid outlet that is equipped with a plurality of and different independent liquid supply unit intercommunications of reagent of third liquid feeding, second agitator motor sets up titrate detection fence below, be equipped with magnetic force spare on the second agitator motor, second agitator motor drives titrate the magnetic bead stirring in the sample cup on the detection fence.
5. The fully automatic water quality COD analyzing apparatus according to claim 1, wherein the XYZ manipulator comprises an X-direction translation mechanism, a Y-direction translation mechanism, a Z-direction lifting mechanism and a clamping jaw mechanism, wherein a base of the Y-direction translation mechanism is mounted on an upper portion of the rack, a base of the X-direction translation mechanism is mounted on a moving part of the Y-direction translation mechanism, and a base of the Z-direction lifting mechanism is mounted on a moving part of the X-direction translation mechanism.
6. The full-automatic water COD analyzer according to claim 5, wherein the clamping jaw mechanism comprises an electric clamping jaw, a jaw piece and a jaw piece closing position detection sensor, a base of the electric clamping jaw is mounted on a lifting moving part of the Z-direction lifting mechanism, and the electric clamping jaw drives the jaw piece to open and close.
7. The full-automatic water COD analyzer according to claim 1, wherein the sample heating module is provided with a plurality of heating positions, and the sample heating module is provided with a heat insulation protective shell; the first moving driving mechanism comprises a translation slide rail, a screw mechanism and a driving motor, the sample heating module is installed on a slide block of the translation slide rail, and the driving mechanism drives the sample heating module to move between the transfer station and the heating digestion station through transmission of the screw mechanism.
8. The full-automatic water quality COD analysis device according to claim 1, wherein the condensation reflux unit comprises a fixed frame and a plurality of condensation pipes, the condensation pipes are mounted on the fixed frame in an equal height mode, the condensation pipes comprise an inner pipe body and an outer cavity body surrounding the middle upper part of the periphery of the inner pipe body, openings are formed in the upper part and the lower part of the inner pipe body, cooling water is introduced into the outer cavity body, a cooling water inlet and a cooling water outlet are formed in the outer cavity body, and the outer cavity bodies of the condensation pipes are connected in series through a hose; the cooling water supply unit is also included, an upstream cooling water inlet of a condensation pipe combination of the condensation reflux unit is connected with a water outlet of the cooling water supply unit, and a downstream cooling water outlet of the condensation pipe combination of the condensation reflux unit is connected with a water return port of the cooling water supply unit.
9. The fully automatic water quality COD analysis device according to claim 8, wherein the condenser tube is provided with an upper limiting ring, the fixing frame is provided with two rows of condenser tubes, the fixing frame comprises an upper fixing plate, a side plate, a lower fixing plate, a supporting angle plate, an upper isolation plate, a lower isolation plate and a lower side plate, the upper fixing plate is provided with a plurality of waist-shaped holes, the peripheries of the two condenser tubes are respectively matched with the two ends of the waist-shaped holes, the upper limiting ring of the condenser tube is arranged above the waist-shaped holes of the upper fixing plate, the upper isolation plate is arranged between the upper limiting rings of the two rows of condenser tubes, the lower fixing plate is provided with a plurality of U-shaped holes, the periphery of one condenser tube is matched with the inner arc surface of the U-shaped hole, the lower isolation plate is arranged between the two rows of condenser tubes, and the lower side plate is in collision limitation with the one row of the condenser tubes outside the U-shaped holes.
10. The full-automatic water quality COD analyzing device according to claim 9, wherein the first lifting driving mechanism comprises a linear guide rail, a motor lifting rod and a motor, the linear guide rail is vertically installed on a rear side plate of the rack, a side plate of the fixing frame is installed on a sliding block of the linear guide rail, and the motor drives the fixing frame of the condensation reflux unit to move up and down along the linear guide rail through the motor lifting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751546.6U CN214539439U (en) | 2021-04-14 | 2021-04-14 | Full-automatic water quality COD analytical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751546.6U CN214539439U (en) | 2021-04-14 | 2021-04-14 | Full-automatic water quality COD analytical equipment |
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| CN214539439U true CN214539439U (en) | 2021-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114280224A (en) * | 2021-12-27 | 2022-04-05 | 上海安杰环保科技股份有限公司 | Device for sample tube digestion and titration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280224A (en) * | 2021-12-27 | 2022-04-05 | 上海安杰环保科技股份有限公司 | Device for sample tube digestion and titration |
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