CN213623589U - Pretreatment box for rapidly detecting ammonia nitrogen in water body - Google Patents

Abstract

The utility model discloses a preliminary treatment box for short-term test water ammonia nitrogen, including the box body, the box body is inside including foam bottom plate, a plurality of preliminary treatment cups and rubber head drip tube, and the preliminary treatment cup includes cup, lower cup and filter layer, and the filter layer includes filter screen, filter core and lower filter screen from top to bottom in proper order, goes up the top and the bottom of cup and threaded connection upper cover body and last connector respectively, and the top and the bottom of lower cup are threaded connection lower connector and lower cover body respectively. The utility model discloses pretreatment box's simple structure, water sample preliminary treatment is fast, energy-conserving save time, efficient, easy to operate.

Description

Pretreatment box for rapidly detecting ammonia nitrogen in water body

Technical Field

The field belongs to the technical field of water body detection equipment, and particularly relates to a pretreatment box for quickly detecting ammonia nitrogen in a water body.

Background

In recent years, the national field has increased the monitoring of industrial sewage discharge, and the current common methods for measuring ammonia nitrogen in water bodies include colorimetric methods (including a nano-meter reagent spectrophotometry, a phenol-hypochlorite colorimetry and a salicylic acid-hypochlorite colorimetry), distillation-titration methods, ion chromatography, flow injection methods, ammonia gas sensitive electrode methods and the like, wherein the nano-meter reagent spectrophotometry is most concerned, is taken as a current common detection method, is one of analysis methods specified in surface water environmental quality standards of China, and belongs to a first-choice means for measuring the concentration of ammonia nitrogen.

The water quality of industrial discharge is complex and various, the pretreatment is very important when the nano reagent spectrophotometry is used for detecting water, if the water sample to be detected is not pretreated, the detection result is influenced to a great extent, and the immeasurable influence can also be caused to a detection instrument.

Disclosure of Invention

For solving the not enough of prior art, the utility model aims to provide a water sample preliminary treatment is fast, energy-conserving save time, efficient a preliminary treatment box for short-term test water ammonia nitrogen.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a preliminary treatment box for short-term test water ammonia nitrogen, comprises a box bod, the box body is inside including the foam bottom plate, a plurality of preliminary treatment cups and rubber head drip tube, the preliminary treatment cup includes the cup, lower cup and filter layer, the filter layer includes the filter screen from top to bottom in proper order, filter core and lower filter screen, the top of going up the cup is sealing structure with the bottom of lower cup, the bottom outside of going up the cup and the top outside of lower cup all set up in the external screw thread, the top inboard of going up the filter screen all is provided with the internal thread with the bottom outside of lower filter screen, go up between cup and the last filter screen, all be in the same place through threaded connection between lower cup and the lower.

Preferably, aforementioned foam bottom plate is fixed inside the box body, is provided with a plurality of evenly distributed's fixed slot on the foam bottom plate, and the preliminary treatment cup sets up in the fixed slot, can play the effect of fixed preliminary treatment cup, prevents to collide each other between the cup in the transportation and leads to the cup breakage and reagent to reveal.

Preferably, the foam bottom plate is provided with a plurality of slots in the middle, and the rubber dropper is arranged in the slots.

More preferably, the upper filter screen, the filter element and the lower filter screen are detachably connected.

Further preferably, the filter element is medium-speed qualitative filter paper coated with activated carbon.

Specifically, the side walls of the upper cup body and the lower cup body are provided with scale marks, and the scale marks of the upper cup body and the lower cup body are symmetrical with respect to the filter element.

Preferably, rubber sealing rings are arranged at the joints between the upper cup body and the upper filter screen and between the lower cup body and the lower filter screen, so that the sealing function can be achieved.

Still preferably, the upper cup body and the lower cup body are both made of transparent glass, the total height of the pretreatment cup is 18cm, the outer diameter of the pretreatment cup is 7cm, and the height of the filter layer is 2 cm.

The utility model discloses an useful part lies in: the utility model discloses pretreatment box's simple structure, water sample preliminary treatment is fast, energy-conserving save time, efficient, easy to operate, application prospect are wide, the facilitate promotion.

Drawings

Fig. 1 is a schematic vertical cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of a pretreatment cup according to the present invention;

fig. 3 is a schematic view of the split structure of the pretreatment cup of the present invention.

The meaning of the reference symbols in the figures: 1. the device comprises a box body, 2, a foam bottom plate, 2.1, a fixing groove, 2.2, an inserting groove, 3, a pretreatment cup, 4, a rubber head dropper, 7, an upper cup body, 8, a lower cup body, 10, an upper filter screen, 11, a filter core, 12 and a lower filter screen.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the utility model discloses a preliminary treatment box for short-term test water ammonia nitrogen, including box body 1, 1 inside foam bottom plate 2, a plurality of preliminary treatment cups 3 and rubber head burette 4 of including of box body, rubber head burette 4 includes the rubber head burette 4 that two kinds of specifications of 0.2ml and 1ml are different.

Referring to fig. 2 and 3, the pretreatment cup 3 comprises an upper cup body 7, a lower cup body 8 and a filter layer, the filter layer sequentially comprises an upper filter screen 10, a filter element 11 and a lower filter screen 12 from top to bottom, and the upper filter screen 10, the filter element 11 and the lower filter screen 12 are detachably connected. Go up the top of cup 7 and the bottom of lower cup 8 and be sealing structure, the bottom outside of going up cup 7 and the top outside of lower cup 8 all set up in the external screw thread, the top inboard of going up filter screen 10 and the bottom outside of filter screen 12 all are provided with the internal thread down, go up between cup 7 and the last filter screen 10, all be in the same place through threaded connection between lower cup 8 and the lower filter screen 12, go up cup 7 and last lid 5, go up cup 7 and last connector 9 and lower cup 8 and lower connector 13, the junction between lower cup 8 and the lower lid 6 all is provided with rubber seal, can play sealed effect.

Foam bottom plate 2 is fixed inside 1 box body, is provided with a plurality of evenly distributed's fixed slot 2.1 on the foam bottom plate 2, and preliminary treatment cup 3 sets up in fixed slot 2.1, can play the effect of fixed preliminary treatment cup 3, prevents between the transportation cup collision each other and leads to the cup broken and reagent to reveal. The middle part of the foam bottom plate 2 is provided with a plurality of slots 2.2, and the rubber head dropper 4 is arranged in the slots 2.2.

The filter element 11 is medium-speed qualitative filter paper wrapped with activated carbon, each filter element 11 is sealed by a plastic package membrane before use, specifically, scale marks are arranged on the side walls of the upper cup body 7 and the lower cup body 8, and the scale marks are symmetrical with respect to the filter element 11. The upper cup body 7 and the lower cup body 8 are both made of transparent glass, the total height of the pretreatment cup 3 is 18cm, the outer diameter is 7cm, and the height of the filter layer is 2 cm.

For better explanation of the present invention, the following description specifically describes the working process thereof:

adding 100 ml of water sample to be treated into a lower cup body 8, respectively adding 1ml of zinc sulfate solution and 0.2ml of sodium hydroxide solution by using a rubber head dropper 4, screwing a lower cup cover down in a spiral manner, slightly shaking left and right to mix uniformly, standing for precipitation, turning over a slow cup body, filtering, and filtering out treated liquid to be detected in an upper cup body 7 so as to facilitate subsequent rapid detection.

The utility model discloses pretreatment box's simple structure, water sample preliminary treatment is fast, energy-conserving save time, efficient, easy to operate, application prospect are wide, the facilitate promotion.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (8)

1. A pretreatment box for rapidly detecting ammonia nitrogen in a water body comprises a box body (1) and is characterized in that, the box body (1) comprises a foam bottom plate (2), a plurality of pretreatment cups (3) and a rubber head dropper (4), the pretreatment cup (3) comprises an upper cup body (7), a lower cup body (8) and a filter layer, the filtering layer sequentially comprises an upper filtering net (10), a filtering core (11) and a lower filtering net (12) from top to bottom, the top end of the upper cup body (7) and the bottom end of the lower cup body (8) are both of sealing structures, the outer side of the bottom end of the upper cup body (7) and the outer side of the top end of the lower cup body (8) are both arranged on the external thread, the inner side of the top end of the upper filter screen (10) and the outer side of the bottom end of the lower filter screen (12) are both provided with internal threads, the upper cup body (7) and the upper filter screen (10) and the lower cup body (8) and the lower filter screen (12) are connected together through threads.

2. The pretreatment box for rapidly detecting ammonia nitrogen in a water body according to claim 1, wherein the foam bottom plate (2) is fixed inside the box body (1), a plurality of fixing grooves (2.1) are uniformly distributed on the foam bottom plate (2), and the pretreatment cup (3) is arranged in the fixing grooves (2.1).

3. The pretreatment box for rapidly detecting ammonia nitrogen in a water body according to claim 1, wherein a plurality of slots (2.2) are formed in the middle of the foam bottom plate (2), and the rubber dropper (4) is arranged in the slots (2.2).

4. The pretreatment box for rapidly detecting ammonia nitrogen in water body according to claim 1, wherein the upper filter screen (10), the filter element (11) and the lower filter screen (12) are detachably connected.

5. The pretreatment cartridge for rapidly detecting ammonia nitrogen in a water body according to claim 1, wherein the filter element (11) is activated carbon wrapped by medium-speed qualitative filter paper.

6. The pretreatment box for rapidly detecting ammonia nitrogen in water body according to claim 1, wherein the side walls of the upper cup body (7) and the lower cup body (8) are provided with scale marks, and the scale marks of the upper cup body and the lower cup body are symmetrical with each other about the filter element (11).

7. The pretreatment box for rapidly detecting ammonia nitrogen in a water body according to claim 1, wherein rubber sealing rings are arranged at the joints between the upper cup body (7) and the upper filter screen (10) and between the lower cup body (8) and the lower filter screen (12).

8. The pretreatment box for rapidly detecting ammonia nitrogen in a water body according to claim 1, wherein the upper cup body (7) and the lower cup body (8) are both made of transparent glass, the total height of the pretreatment cup (3) is 18cm, the outer diameter of the pretreatment cup is 7cm, and the height of the filter layer is 2 cm.

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