CN213749590U

CN213749590U - In-situ analyzer

Info

Publication number: CN213749590U
Application number: CN202022307759.8U
Authority: CN
Inventors: 龚伟华; 孙福强
Original assignee: Hangzhou Kemis Iot Sensing Technology Co ltd
Current assignee: Hangzhou Kemis Iot Sensing Technology Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-07-20
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses an in-situ analyzer, which comprises an outer shell, be equipped with the base in the shell, the base top is equipped with interconnect's first solenoid valve and clears up the pond, it is equipped with the fixed plate to clear up the pond middle part, the fixed plate top is equipped with the syringe pump, syringe pump one side is equipped with the circuit board, and the second solenoid valve on clearing up pond upper portion is connected to the opposite side, the syringe pump is equipped with a plurality of pipeline interfaces. The utility model has the advantages of the integrated level is high, the low power dissipation, small, convenient to carry, can integrate in buoy, multi-parameter monitoring system or with modes such as shipborne, bank base cloth put operation, realize unmanned on duty's on-line monitoring.

Description

In-situ analyzer

Technical Field

The utility model relates to a check out test set field especially relates to an in situ analyzer.

Background

The detection principle of the in-situ analyzer is mainly based on a spectrophotometry and is improved on the basis that: reacting a water sample with potassium persulfate in a digestion tank at 120-124 ℃ to convert phosphorus-containing compounds with different forms in water into orthophosphate. Orthophosphate reacts with ammonium molybdate to generate phosphomolybdic heteropoly acid in the presence of antimony salt, and the phosphomolybdic heteropoly acid is immediately reduced by ascorbic acid to generate blue complex.

The in-situ analyzer is suitable for in-situ sensors for measuring the concentration of total phosphorus in water bodies such as surface water, offshore bodies, sea entrances and the like. The instrument can provide continuous and stable monitoring data required by water quality investigation and research, water environment monitoring, early warning of ecological disasters such as red tide, green tide and the like for a user through online monitoring of total phosphorus in water.

The existing in-situ analyzer is often large in size and inconvenient to use and detect.

Disclosure of Invention

The utility model aims at the defect to prior art, provide a small in size, carry convenient normal position analysis appearance.

In order to realize the above purpose, the utility model adopts the following technical scheme:

the utility model provides an in-situ analyzer, includes the shell, be equipped with the base in the shell, the base top is equipped with interconnect's first solenoid valve and clears up the pond, it is equipped with the fixed plate to clear up the pond middle part, the fixed plate top is equipped with the syringe pump, syringe pump one side is equipped with the circuit board, and the second solenoid valve on clearing up pond upper portion is connected to the opposite side, the syringe pump is equipped with a plurality of pipeline interfaces.

Further, the pipeline interface comprises an air inlet, an ascorbic acid reagent inlet, a potassium persulfate reagent inlet, an inlet of an ammonium molybdate reagent, a digestion tank inlet, a standard sample inlet, a water sample inlet, a distilled water inlet and a waste liquid outlet, the digestion tank inlet is connected with the digestion tank through a pipeline, and the ascorbic acid reagent inlet, the potassium persulfate reagent inlet, the inlet of the ammonium molybdate reagent, the standard sample inlet, the water sample inlet, the distilled water inlet and the waste liquid outlet are all connected with a hose.

Further, the air inlet, the ascorbic acid reagent inlet, the potassium persulfate reagent inlet, the ammonium molybdate reagent inlet, the digestion tank inlet, the standard sample inlet, the water sample inlet, the distilled water inlet and the waste liquid outlet are annularly arranged.

Furthermore, the shell is provided with 7 shell pipeline holes matched with an ascorbic acid reagent inlet, a potassium persulfate reagent inlet, an ammonium molybdate reagent inlet, a standard sample inlet, a water sample inlet, a distilled water inlet and a waste liquid outlet.

Furthermore, a fan is arranged behind the digestion tank, a heating wire is arranged on the digestion tank, a 700nm light source and a signal receiver are respectively arranged on two sides of the digestion tank, and a colorimetric tank with a 10mm optical path is arranged between the light source and the receiver.

Furthermore, the circuit boards are provided with two circuit boards which are respectively connected with the first electromagnetic valve and the second electromagnetic valve.

Furthermore, the base and the fixing plate are both circular.

Further, the shell is a cylindrical shell.

Adopt the technical scheme of the utility model, the beneficial effects of the utility model are that: the utility model has the advantages of the integrated level is high, the low power dissipation, small, convenient to carry, can integrate in buoy, multi-parameter monitoring system or with modes such as shipborne, bank base cloth put operation, realize unmanned on duty's on-line monitoring.

Drawings

FIG. 1 is a schematic diagram of an in-situ analyzer according to the present invention;

fig. 2 is a side view of the internal structure of an in-situ analyzer provided by the present invention;

fig. 3 is a perspective view of the internal structure of the in-situ analyzer provided by the present invention.

Wherein, 1, air inlet, 2, ascorbic acid reagent import, 3, potassium persulfate reagent import, 4, ammonium molybdate reagent's import, 5, clear up the pond import, 6, standard sample import, 7, water sample import, 8, distilled water import, 9, waste liquid export, 10, shell pipeline hole, 11, first solenoid valve, 12, clear up the pond, 13, syringe pump, 14, circuit board, 15, fixed plate, 16, second solenoid valve, 17, base, 18, shell.

Detailed Description

The specific embodiments of the present invention will be further explained with reference to the accompanying drawings.

As shown in the figure, the in-situ analyzer comprises a shell 18, wherein a base 17 is arranged in the shell 18, a first electromagnetic valve 11 and a digestion tank 12 which are connected with each other are arranged above the base 17, a fixing plate 15 is arranged in the middle of the digestion tank 12, an injection pump 13 is arranged above the fixing plate 15, a circuit board 14 is arranged on one side of the injection pump 13, a second electromagnetic valve 16 is connected to the upper portion of the digestion tank 12 on the other side of the injection pump, and the injection pump 13 is provided with a plurality of pipeline interfaces.

The pipeline interface comprises an air inlet 1, an ascorbic acid reagent inlet 2, a potassium persulfate reagent inlet 3, an inlet 4 of an ammonium molybdate reagent, a digestion tank inlet 5, a standard sample inlet 6, a water sample inlet 7, a distilled water inlet 8 and a waste liquid outlet 9, wherein the digestion tank inlet 5 is connected with a digestion tank 12 through a pipeline, and the ascorbic acid reagent inlet 2, the potassium persulfate reagent inlet 3, the inlet 4 of the ammonium molybdate reagent, the standard sample inlet 6, the water sample inlet 7, the distilled water inlet 8 and the waste liquid outlet 9 are all connected with a hose. The air inlet 1 is not connected to a hose.

The air inlet 1, the ascorbic acid reagent inlet 2, the potassium persulfate reagent inlet 3, the ammonium molybdate reagent inlet 4, the digestion tank inlet 5, the standard sample inlet 6, the water sample inlet 7, the distilled water inlet 8 and the waste liquid outlet 9 are annularly arranged.

The shell 18 is provided with 7 shell 18 pipeline holes 10 matched with an ascorbic acid reagent inlet 2, a potassium persulfate reagent inlet 3, an ammonium molybdate reagent inlet 4, a standard sample inlet 6, a water sample inlet 7, a distilled water inlet 8 and a waste liquid outlet 9.

A fan is arranged at the rear part of the digestion tank 12, a heating wire is arranged on the digestion tank 12, a 700nm light source and a signal receiver are respectively arranged at two sides of the digestion tank 12, and a colorimetric tank with a 10mm light path is arranged between the light source and the receiver.

The two circuit boards 14 are connected to the first solenoid valve 11 and the second solenoid valve 16, respectively.

The base 17 and the fixing plate 15 are both circular. The housing 18 is a cylindrical housing 18.

The electromagnetic valve of the digestion tank 12 is connected with the control unit of the circuit board 14, the upper and lower sealing valves are all opened when liquid is fed or drained every time, and the next operation is controlled by the air pump device after the closing is finished immediately; the heating wires on the digestion tank 12 are connected with the heating units of the circuit board 14; the fan at the back of the digestion tank 12 is connected with the heat dissipation unit of the control module; the two sides of the digestion pool 12 are respectively provided with a 700nm light source and a signal receiver, the middle part is provided with a colorimetric pool with a 10mm optical path, the light source is connected with a signal output module of the control module, and the signal receiver is connected with a signal processor of the circuit board 14.

The internal detection flow of the in-situ analyzer is as follows:

after the instrument is powered on, a user can select three modes of manual starting, remote starting and timing starting to issue a starting test instruction. The instrument receives the instruction and then automatically detects the state of the system, if abnormal conditions such as liquid shortage, temperature, light source intensity and the like are met, an alarm is sent, all the conditions are normal, initialization is carried out, preset parameters are read in, the system is emptied, and residual liquid caused by abnormal interruption is prevented from remaining. The preparation is completed.

The test procedure of the in-situ analyzer is as follows:

firstly, a pipeline and a digestion pool 12 are rinsed by a sample to ensure the accurate input of the sample, then potassium persulfate is added into the digestion pool 12, then a heating wire starts to work to heat and digest the digestion pool 12, and therefore phosphorus in water is oxidized into orthophosphate. After 120 ℃, the lower sealing valve is opened, the upper sealing valve is kept closed, air is pressed into the digestion tank 12 for stirring, and then the lower sealing valve is closed and kept standing for 8 min. And (3) after standing, opening a fan, radiating heat to the digestion tank 12 to 50 ℃, then respectively adding ascorbic acid and ammonium molybdate into the digestion tank 12, standing for 3min again, wherein the ammonium molybdate serving as a color developing agent reacts with orthophosphate in an acidic medium to generate phosphomolybdic heteropoly acid in the presence of antimonate, and then immediately reducing the phosphomolybdic heteropoly acid by the ascorbic acid to generate a blue complex. And then, colorimetric detection is started, a 700nm light source emits light, the receiving module receives signals, and the signals are amplified, filtered, subjected to digital-to-analog conversion and stored in the control module. The waste liquid is then discharged.

The cleaning process of the in-situ analyzer is as follows:

and after the liquid drainage is finished, cleaning the digestion tank 12 twice by using distilled water, wherein during the second cleaning, colorimetric detection is carried out again, reference light intensity is collected, and the measured total phosphorus concentration is obtained after calculation by using the light intensity twice. After the drainage is completely finished, the whole detection process is completely finished, and other instructions are waited.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides an in situ analyzer, its characterized in that, includes the shell, be equipped with the base in the shell, the base top is equipped with interconnect's first solenoid valve and clears up the pond, it is equipped with the fixed plate to clear up the pond middle part, the fixed plate top is equipped with the syringe pump, syringe pump one side is equipped with the circuit board, and the second solenoid valve on clearing up pond upper portion is connected to the opposite side, the syringe pump is equipped with a plurality of pipeline interfaces.

2. The in-situ analyzer according to claim 1, wherein the pipeline interface comprises an air inlet, an ascorbic acid reagent inlet, a potassium persulfate reagent inlet, an ammonium molybdate reagent inlet, a digestion tank inlet, a standard sample inlet, a water sample inlet, a distilled water inlet and a waste liquid outlet, the digestion tank inlet is connected with the digestion tank through a pipeline, and the ascorbic acid reagent inlet, the potassium persulfate reagent inlet, the ammonium molybdate reagent inlet, the standard sample inlet, the water sample inlet, the distilled water inlet and the waste liquid outlet are all connected with a hose.

3. The in situ analyzer of claim 2, wherein the air inlet, the ascorbic acid reagent inlet, the potassium persulfate reagent inlet, the ammonium molybdate reagent inlet, the digestion tank inlet, the standard sample inlet, the water sample inlet, the distilled water inlet and the waste liquid outlet are annularly arranged.

4. The in situ analyzer of claim 2, wherein the housing has 7 housing tubing holes adapted to the ascorbic acid reagent inlet, the potassium persulfate reagent inlet, the ammonium molybdate reagent inlet, the standard sample inlet, the water sample inlet, the distilled water inlet, and the waste outlet.

5. The in-situ analyzer according to claim 1, wherein a fan is disposed behind the digestion tank, a heating wire is disposed on the digestion tank, a 700nm light source and a signal receiver are disposed at two sides of the digestion tank, and a colorimetric tank with a 10mm optical path is disposed between the light source and the receiver.

6. The in-situ analyzer as claimed in claim 1, wherein the circuit boards are connected to the first solenoid valve and the second solenoid valve respectively.

7. The in situ analyzer of claim 1, wherein the base and the retaining plate are circular.

8. The in situ analyzer of claim 1, wherein the housing is a cylindrical housing.