Analyzing device for detecting ammonia nitrogen in water

Abstract

The utility model discloses an analysis device for detecting ammonia nitrogen in water, which comprises a box body, and a mounting plate is rotatably mounted in the box body. A precipitation cup, a stirring cup, a second water pump and a third water pump are fixedly arranged on the mounting plate. The second water pump pumps water from the precipitation cup to the stirring cup; the third water pump pumps water from the stirring cup to the second water outlet pipe through the spring water pipe. A second water outlet pipe is arranged on the side wall of the box body, a bracket is fixedly arranged on the outer side wall, a filter cup can be placed on the bracket, and filter paper can be placed on the top of the filter cup. A first liquid inlet and a second liquid inlet are formed in the top wall of the box body and correspond to the precipitation cup and the stirring cup respectively, and a quantitative liquid adding mechanism is further arranged at the top. The box body is provided with a driving part to enable the mounting plate to rotate by 180 degrees, a spraying cleaning part (located below the mounting plate) is arranged in the box body and used for cleaning, and a liquid supply part is arranged outside the box body. A drain pipe is arranged at the bottom of the box body, a controller is arranged on the outer side wall, and all components are electrically connected with the controller. The device can realize semi-automatic operation on pretreatment of the water body, so that the labor time consumption is reduced, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection technical field, concretely relates to an analysis device for detecting water quality ammonia nitrogen. BACKGROUND

[0002] The ammonia nitrogen content in water body is one of important indexes for determining water quality standard, in the case that water body is better, can directly use reagent and instrument to detect water quality, and when water body is more turbid, needs to carry out pretreatment to water body first and then can carry out detection analysis.

[0003] For most water bodies needing ammonia nitrogen detection, the pretreatment steps mainly include three steps of sedimentation, flocculation and filtration, and whether it is sedimentation, flocculation or filtration, it needs to last for 10-20 minutes, and the present processing steps are generally manually operated by experiment personnel, and at the same time, after processing these steps each time, the sedimentation cup and flocculation cup also need to be cleaned, and it is more labor-consuming.

[0004] Therefore, the analysis device for detecting water quality ammonia nitrogen is designed, the pretreatment of water body can be realized semi-automatically, so as to reduce the artificial time consumption and improve the detection efficiency. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing an analysis device for detecting water quality ammonia nitrogen to solve the problems described in the background.

[0006] The technical scheme of the utility model is realized as follows:

[0007] The utility model provides an analysis device for detecting water quality ammonia nitrogen, including the box, the installation plate is rotatably installed in the box, the upper end surface of installation plate is fixed with the precipitate cup, the stirring cup, the second water pump and the third water pump, the water inlet of second water pump is connected with first water suction pipe, is equipped with first flowmeter on first water suction pipe, and first water suction pipe enters the precipitate cup along the lateral wall of precipitate cup, the water outlet of second water pump is connected with first water outlet pipe, and first water outlet pipe enters the stirring cup along the lateral wall of stirring cup, the water inlet of third water pump is connected with second water suction pipe, is equipped with second flowmeter on second water suction pipe, and second water suction pipe enters the stirring cup along the lateral wall of stirring cup, the water outlet of third water pump is connected with spring water pipe, the lateral wall of box is also equipped with second water outlet pipe, and spring water pipe is connected with second water outlet pipe, the outer lateral wall of box is also fixed with bracket, and the filter cup is detachably placed on the bracket, the filter paper is detachably placed on the top of filter plate, and the filter paper is just below the second water outlet pipe, the top wall of box is also provided with first liquid inlet above the precipitate cup, the top wall of box is also provided with second liquid inlet above the stirring cup, and the top of box is also provided with the quantitative liquid adding mechanism for adding liquid to second liquid inlet, the driving part for driving installation plate 180 is also arranged on the box, and the spraying cleaning part is also arranged in the box, which is arranged below installation plate and used for spraying clean water into the precipitate cup and stirring cup after turning over, the liquid supply part for supplying liquid to spraying cleaning part is also arranged outside the box, the drain pipe is also arranged at the bottom of the lateral wall of box, and the controller is also arranged on the lateral wall of box, and the stirring cup, first flowmeter, second flowmeter, second water pump, third water pump, quantitative liquid adding mechanism, driving part and liquid supply part are electrically connected with controller.

[0008] When using the above scheme, in the initial state, the cup mouth of the precipitate cup and the stirring cup faces upward, the tester pours the water sample into the precipitate cup from the first liquid inlet, after a preset time, the water sample is precipitated in the precipitate cup, the controller controls the second water pump to extract the upper liquid in the precipitate cup into the stirring cup, the first flowmeter is used to control the liquid extraction amount of the second water pump, then the controller controls the quantitative liquid adding mechanism to output the flocculating agent solution, and the flocculating agent solution is added into the stirring cup from the second liquid inlet, then the controller controls the stirring cup to stir for a preset time, after stirring, waits for a preset time, when the flocculating material is precipitated, the controller controls the third water pump to extract the upper liquid in the stirring cup and discharge it through the second water outlet pipe, and the second flowmeter is used to control the liquid extraction amount and the liquid extraction rate of the third water pump. After the water sample is precipitated and flocculated, the water sample is filtered by the filter paper and enters the filter cup, and the tester can take away the filter cup and replace the external filter paper according to the set alarm or time to perform ammonia nitrogen detection analysis.

[0009] When the water sample is obtained, the controller is operated to start the cleaning program, the controller drives the driving part to control the installation plate to rotate and overturn 180°, the cup opening of the sedimentation cup and the stirring cup is directed downward, the residual liquid, the sediment and the flocculation are poured into the box body, the controller controls the liquid supply part to provide clean water for the spray cleaning part, the spray cleaning part sprays water to clean the sedimentation cup and the stirring cup, since the cup opening of the sedimentation cup and the stirring cup is directed downward, the sewage after cleaning can be quickly discharged, after a certain time of cleaning, the controller drives the driving part to reset the installation plate to wait for the next use. The sewage is discharged from the drain pipe after the cleaning is completed.

[0010] The third water pump can be smoothly overturned by arranging the spring water pipe.

[0011] The device can realize semi-automatic pretreatment operation under the cooperation of the detection personnel, and automatically realize the sedimentation, flocculation, filtration and cleaning operation, thereby reducing the labor time and improving the detection efficiency.

[0012] Further, the two ends of the installation plate are fixedly provided with rotating shafts, the rotating shafts are rotatably arranged in the side wall of the box body, and one end of the rotating shafts is arranged outside the side wall of the box body and connected with the driving part.

[0013] When the above scheme is used, the driving part drives the rotating shaft to rotate, and the rotating shaft drives the installation plate to rotate.

[0014] Further, the quantitative liquid adding mechanism comprises a reagent cup, a peristaltic pump and a third water outlet pipe, the reagent cup and the peristaltic pump are fixedly arranged on the top of the box body, the water inlet of the peristaltic pump is communicated with the reagent cup, the water outlet of the peristaltic pump is connected with the third water outlet pipe, the third water outlet pipe extends to above the second liquid inlet, and the peristaltic pump is electrically connected with the controller.

[0015] When the above scheme is used, the reagent cup is added with the prepared flocculant, and the peristaltic pump can accurately control the adding amount of the reagent.

[0016] Further, the spray cleaning part comprises a mounting rod fixedly arranged in the box body, a water supply pipe is fixedly arranged on the mounting rod, two spray heads are fixedly arranged on the water supply pipe, the two spray heads spray water upward and are respectively aligned with the sedimentation cup and the stirring cup, and one end of the water supply pipe is arranged outside the box body and connected with the liquid supply part.

[0017] When the above scheme is used, the mounting rod provides support for the water supply pipe, the liquid supply part provides clean water into the water supply pipe, and the clean water is sprayed upward through the spray heads.

[0018] Further, the liquid supply part comprises a water tank and a first water pump, the water tank is fixedly arranged on the outer side wall of the box body, the water inlet of the first water pump is communicated with the water tank, the water outlet of the first water pump is connected with the liquid supply pipe, and the first water pump is electrically connected with the controller.

[0019] When the above scheme is used, the water tank is used for storing clean water, and the first water pump is used for pumping the liquid in the water tank and providing water pressure for the spray head to spray water.

[0020] Further, the driving component comprises a first motor fixed on the outer sidewall of the tank body, the output shaft of the first motor is connected with the rotating shaft, and the first motor is electrically connected with the controller.

[0021] When the above scheme is used, the first motor drives the rotating shaft to rotate.

[0022] Further, the stirring cup comprises a cup body, a partition plate fixed in the cup body to divide the cup body into two spaces in the up-down direction, a second motor fixed below the partition plate, an output shaft of the second motor upwardly and sealingly penetrating through the partition plate and provided with stirring blades, and the second motor is electrically connected with the controller.

[0023] When the above scheme is used, the output shaft of the second motor drives the stirring blades to rotate, so that the stirring function is realized.

[0024] Further, the bottom of the tank body is a slope surface, and the drain pipe is arranged at the lowest position of the slope surface.

[0025] The beneficial effects of the utility model are as follows:

[0026] 1. High degree of automation, reducing labor time: realizing semi-automatic of the whole process of precipitation, flocculation and filtration, only needing detection personnel to cooperate with starting program and replacing filter paper, and cleaning automation, reducing labor time.

[0027] 2. Innovative design of cleaning structure: 180° overturning drainage structure realizes rapid self-cleaning, cooperates with a spraying system to completely remove residues, cup opening downward design ensures that sewage is not retained, cooperates with a spring water pipe to adapt to overturning working conditions, and automatic cleaning program reduces manual cleaning time. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a general schematic view of the utility model;

[0029] Figure 2 It is Figure 1 a cleaning schematic view of the mounting plate after 180° overturning;

[0030] Figure 3 It is Figure 1 a top view schematic view of the mounting plate and each component above.

[0031] In the diagram, 1. Box body, 2. Slope, 3. Mounting rod, 4. Water supply pipe, 5. Nozzle, 6. Drain pipe, 7. Water tank, 8. First water pump, 9. Controller, 10. Mounting plate, 11. Rotating shaft, 12. Support frame, 13. First motor, 14. Reagent cup, 15. Peristaltic pump, 16. Bracket, 17. Filter cup, 18. Filter paper, 19. Sedimentation cup, 20. Second water pump, 21. First water suction pipe, 22. First water outlet pipe, 23. First flow meter, 24. Second flow meter, 25. Stirring cup, 26. Baffle, 27. Second motor, 28. Stirring blade, 29. Third water pump, 30. Second water suction pipe, 31. Spring water pipe, 32. Second water outlet pipe, 33. First liquid inlet, 34. Second liquid inlet, 35. Third water outlet pipe. Detailed Implementation

[0032] To better understand the technical content of this utility model, specific embodiments are provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0033] See Figures 1 to 3 An analytical device for detecting ammonia nitrogen in water includes a rectangular box 1, and a mounting plate 10 is rotatably installed inside the box 1.

[0034] Specifically, both ends of the mounting plate 10 are fixed with rotating shafts 11, which are rotatably inserted into the side wall of the housing 1.

[0035] The upper surface of the mounting plate 10 is fixed with a sedimentation cup 19, a second water pump 20, a stirring cup 25 and a third water pump 29 from left to right. The inlet of the second water pump 20 is connected to a first water pumping pipe 21. A first flow meter 23 is provided on the first water pumping pipe 21. The first water pumping pipe 21 extends into the sedimentation cup 19 along the side wall of the sedimentation cup 19.

[0036] Preferably, the first pumping pipe 21 is a rigid pipe, which is glued to the side wall of the sedimentation cup 19 and extends into the sedimentation cup 19 to the lower middle part of the sedimentation cup 19.

[0037] The outlet of the second water pump 20 is connected to the first water outlet pipe 22, which extends into the mixing cup 25 along the side wall of the mixing cup 25.

[0038] Preferably, the first water outlet pipe 22 is a rigid pipe, which is glued to the side wall of the mixing cup 25 and extends into the upper middle part of the mixing cup 25.

[0039] The inlet of the third water pump 29 is connected to the second pumping pipe 30, and the second pumping pipe 30 is equipped with a second flow meter 24. The second pumping pipe 30 extends into the mixing cup 25 along the side wall of the mixing cup 25.

[0040] Preferably, the second water pipe 30 is a rigid pipe, which is glued to the side wall of the mixing cup 25 and extends into the middle of the mixing cup 25.

[0041] The outlet of the third water pump 29 is connected to a spring water pipe 31, and a second water outlet pipe 32 is also installed on the side wall of the housing 1. The spring water pipe 31 is connected to the second water outlet pipe 32.

[0042] Preferably, the spring water pipe 31 is an elastic spring-shaped flexible hose, and the second water outlet pipe 32 is a rigid pipe, with the portion of the second water outlet pipe 32 extending obliquely downward from the box body 1.

[0043] Specifically, the stirring cup 25 includes a cup body and a partition 26 fixed inside the cup body to separate the cup body into two spaces, an upper and a lower space. A second motor 27 is fixed below the partition 26. The output axis of the second motor 27 rotates upward through the partition 26 and is equipped with stirring blades 28.

[0044] A bracket 16 is also fixed on the outer wall of the housing 1. A filter cup 17 is detachably placed on the bracket 16, and a filter paper 18 is detachably placed on the top of the filter plate. The filter paper 18 is located directly below the second water outlet pipe 32.

[0045] A first liquid inlet 33 is provided on the top wall of the box 1 directly above the sedimentation cup 19, and a second liquid inlet 34 is provided on the top wall of the box 1 directly above the stirring cup 25.

[0046] The top of the housing 1 is also equipped with a metering liquid adding mechanism for adding liquid to the second liquid inlet 34.

[0047] Specifically, the quantitative liquid addition mechanism includes a reagent cup 14, a peristaltic pump 15, and a third water outlet pipe 35. The reagent cup 14 and the peristaltic pump 15 are respectively fixed on the top of the box 1. The water inlet of the peristaltic pump 15 is connected to the reagent cup 14, and the water outlet of the peristaltic pump 15 is connected to the third water outlet pipe 35. The third water outlet pipe 35 extends above the second liquid inlet 34.

[0048] The housing 1 is also equipped with a drive component for driving the mounting plate 10 to rotate 180°.

[0049] Specifically, the drive component includes a support frame 12 fixed on the outer wall of the housing 1, a first motor 13 fixedly mounted on the support frame 12, and a rotating shaft 11 at one end of the mounting plate 10 extending outward through the side wall of the housing 1 and connected to the output shaft of the first motor 13.

[0050] Preferably, the first motor 13 is a servo motor.

[0051] The chamber 1 is also equipped with a spray cleaning component, which is located below the mounting plate 10 and is used to spray clean water into the inverted sedimentation cup 19 and stirring cup 25. The chamber 1 is also equipped with a liquid supply component for supplying liquid to the spray cleaning component.

[0052] Specifically, the spray cleaning component comprises a mounting rod 3 fixedly arranged in the box body 1, a water supply pipe 4 fixedly arranged on the mounting rod 3, and two spray heads 5 fixedly arranged on the water supply pipe 4, wherein the two spray heads 5 spray water upwards and are respectively aligned with the sediment cup 19 and the stirring cup 25, and one end of the water supply pipe 4 outwardly penetrates through the box body 1 and is connected with the liquid supply component.

[0053] Specifically, the liquid supply component comprises a water tank 7 and a first water pump 8, wherein the water tank 7 is fixedly arranged on the outer side wall of the box body 1, the water inlet of the first water pump 8 is communicated with the water tank 7, and the water outlet of the first water pump 8 is connected with the liquid supply pipe.

[0054] The box body 1 is further provided with a drain pipe 6 at the bottom of the side wall.

[0055] Preferably, the bottom of the box body 1 is a slope surface 2, and the drain pipe 6 is arranged at the lowest position of the slope surface 2.

[0056] The box body 1 is further provided with a controller 9 on the outer side wall, wherein the controller 9 adopts an STM32 single-chip microcomputer or a SMART200PLC controller 9, and the first flow meter 23, the second flow meter 24, the first water pump 8, the second water pump 20, the third water pump 29, the peristaltic pump 15, the first motor 13 and the second motor 27 are electrically connected with the controller 9.

[0057] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An analytical device for detecting ammonia nitrogen in water, characterized in that: The system includes a housing, inside which a mounting plate is rotatably mounted. A sedimentation cup, a stirring cup, a second water pump, and a third water pump are fixedly mounted on the upper surface of the mounting plate. The inlet of the second water pump is connected to a first suction pipe, which is equipped with a first flow meter. The first suction pipe extends into the sedimentation cup along its side wall. The outlet of the second water pump is connected to a first outlet pipe, which extends into the stirring cup along its side wall. The inlet of the third water pump is connected to a second suction pipe, which is equipped with a second flow meter. The second suction pipe extends into the stirring cup along its side wall. The outlet of the third water pump is connected to a spring water pipe. A second outlet pipe also passes through the side wall of the housing and is connected to the spring water pipe. A bracket is fixed to the outer side wall of the housing, on which a filter cup is detachably placed. The top of the filter plate is detachably placed... The system includes filter paper positioned directly below the second water outlet pipe. A first liquid inlet is located on the top wall of the tank directly above the sedimentation cup, and a second liquid inlet is located on the top wall of the tank directly above the stirring cup. A metering liquid addition mechanism for adding liquid to the second liquid inlet is located on the top of the tank. A drive unit for rotating the mounting plate 180° is also located on the tank. A spray cleaning component is located below the mounting plate and sprays clean water into the inverted sedimentation cup and stirring cup. A liquid supply component for supplying liquid to the spray cleaning component is located outside the tank. A drain pipe is located at the bottom of the side wall of the tank, and a controller is located on the outer side wall of the tank. The stirring cup, first flow meter, second flow meter, second water pump, third water pump, metering liquid addition mechanism, drive unit, and liquid supply component are all electrically connected to the controller.

2. The analytical device for detecting ammonia nitrogen in water according to claim 1, characterized in that: Both ends of the mounting plate are fixed with rotating shafts, which are rotatably inserted into the side wall of the housing. One end of the rotating shaft extends outward through the side wall of the housing and is driven by the driving component.

3. The analytical device for detecting ammonia nitrogen in water according to claim 2, characterized in that: The quantitative liquid dispensing mechanism includes a reagent cup, a peristaltic pump, and a third water outlet pipe. The reagent cup and the peristaltic pump are respectively fixed on the top of the box. The water inlet of the peristaltic pump is connected to the reagent cup, and the water outlet of the peristaltic pump is connected to the third water outlet pipe. The third water outlet pipe extends above the second liquid inlet, and the peristaltic pump is electrically connected to the controller.

4. The analytical device for detecting ammonia nitrogen in water according to claim 1, characterized in that: The spray cleaning component includes a mounting rod fixed inside the housing, a water supply pipe fixed on the mounting rod, and two nozzles fixed on the water supply pipe. Both nozzles spray water upwards and are respectively aimed at the sedimentation cup and the stirring cup. One end of the water supply pipe extends outwards from the housing and connects to the liquid supply component.

5. An analytical device for detecting ammonia nitrogen in water according to claim 4, characterized in that: The liquid supply component includes a water tank and a first water pump. The water tank is fixed on the outer wall of the tank body. The inlet of the first water pump is connected to the water tank, the outlet of the first water pump is connected to the liquid supply pipe, and the first water pump is electrically connected to the controller.

6. An analytical device for detecting ammonia nitrogen in water according to claim 2, characterized in that: The drive component includes a first motor fixed to the outer wall of the housing, the output shaft of the first motor is connected to the rotating shaft, and the first motor is electrically connected to the controller.

7. An analytical device for detecting ammonia nitrogen in water according to claim 1, characterized in that: The stirring cup includes a cup body and a partition fixed inside the cup body to separate the cup body into upper and lower spaces. A second motor is fixed below the partition. The output axis of the second motor rotates upward through the partition and is equipped with stirring blades. The second motor is electrically connected to the controller.

8. An analytical device for detecting ammonia nitrogen in water according to any one of claims 1-7, characterized in that: The bottom of the container is sloped, and the drain pipe is located at the lowest point of the slope.

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