WO2022134372A1

WO2022134372A1 - Device for detecting concentration of concentrated pollutants of water body and method for using same

Info

Publication number: WO2022134372A1
Application number: PCT/CN2021/085060
Authority: WO
Inventors: 唐松林
Original assignee: 环必静(苏州)环境科技有限公司
Priority date: 2020-12-25
Filing date: 2021-04-01
Publication date: 2022-06-30
Also published as: CN112697662A; CN112697662B

Abstract

A device for detecting the concentration of concentrated pollutants in a water body, comprising a floating body (100), a current stabilizer (200), guide rails (300) and a detection piece (400). The floating body (100) is a hollow cylindrical structure, and the detection piece (400) is a square-shaped filter screen. The surface of the floating body (100) is connected by means of a tripod-shaped bracket (110) so as to facilitate the placement and lifting of the floating body (100). An inner cavity of the floating body (100) is connected to several symmetrical guide rails (300), and the guide rails (300) are vertically arranged. A sliding block (310) is provided on each guide rail (300), and the sliding blocks (310) and clamps (330) are connected by means of retractors (320). The sliding blocks (310) drive the detection piece (400) to move along the vertical direction. A top layer of the detection piece (400) is a circular groove (410), and each layer of the detection piece (400) except for the top layer is equiangularly distributed with several chromatography grooves (420). The chromatography grooves (420) are enlarged in sequence from top to bottom. Each layer of grooves of the detection piece (400) is communicatively arranged and form several trapezoidal structures that spread from the center to the periphery. Each layer of grooves of the detection piece (400) is adhered with a detection test paper (430) of a matching size. In the detection device, the current stabilizer (200) is used to create a relatively stable water layer inside of the floating body (100). The detection test paper (430) performs gradient adsorption, and the detection result is more accurate.

Description

A kind of water body enrichment pollutant concentration detection equipment and using method thereof

technical field

The invention relates to the technical field of environmental monitoring or the technical field of concentration detection, in particular to a concentration detection device for enriched pollutants in a water body.

Background technique

The organic pollutants enriched in water bodies, especially persistent organic compounds, have toxic effects on organisms when they are in this environment for a long time. At the same time, this toxic effect may also be amplified through the food chain. Therefore, it is necessary to detect the presence of content of organic pollutants.

Due to the large amount of detection and the wide detection range of the existing water pollutant detection, the requirements for detection conditions are not strict, and the detection can be directly sampled at any time. However, there are waves in the water body for a long time, and the fluctuation of the water body then forms peaks and troughs, which affects the detection of the depth range of the detection device, and cannot achieve gradient adsorption and detection.

Therefore, it is necessary to propose further solutions for the above problems.

SUMMARY OF THE INVENTION

The invention overcomes the deficiencies of the prior art and provides a concentration detection device for enriched pollutants in a water body.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a water body enrichment pollutant concentration detection device, characterized in that it includes a floating body, a current stabilizer, a guide rail and a detection part; the floating body is a hollow cylindrical structure, and the The detection piece is a square filter screen; the surface of the floating body is connected by a triangular bracket to facilitate placing and lifting the floating body; one side of the current stabilizer is connected to the floating body;

A plurality of symmetrical guide rails are connected to the inner cavity of the floating body, and the guide rails are arranged vertically; each of the guide rails is provided with a slider, and the slider and the clamp are connected through a retractor; each of the clamps A corner of the detection piece is clamped; the sliding block drives the detection piece to move along the vertical direction of the guide rail;

The detection element is divided into several layers, the top layer of the detection element is a circular groove, and each layer of the detection element except the top layer is equally angularly distributed with several chromatographic grooves, and the chromatography grooves increase sequentially from top to bottom. Each layer of grooves of the detection piece is connected and formed to form a plurality of trapezoidal structures that spread from the center to the periphery; each layer of the grooves of the detection piece is pasted with a detection test paper of matching size.

In a preferred embodiment of the present invention, the adjacent clamps are connected in sequence by connecting rods, so as to ensure that all the sliders move at the same time.

In a preferred embodiment of the present invention, the current stabilizer is formed by connecting an arc-shaped plate and a two-side symmetrical flow guide plate, and one side of the arc-shaped top of the current stabilizer is connected to the floating body.

In a preferred embodiment of the present invention, the floating body floats on the surface of the water body, and the height difference between the sinking height of the floating body and the horizontal plane is -35 cm to -20 cm.

In a preferred embodiment of the present invention, by adjusting the vertical distance of the slider moving on the guide rail, the height difference between the sinking height of the detection piece and the horizontal plane is controlled to be -32 cm to 5 cm.

In a preferred embodiment of the present invention, by adjusting the retracted length of the retractor, different tightening forces on the detection element can be achieved.

In a preferred embodiment of the present invention, the inner wall of the floating body is further provided with a water depth detection needle, which is equipped with a water depth sensor to detect the height difference between the sinking height of the floating body and the detection piece and the horizontal plane.

In a preferred embodiment of the present invention, the diameter of the detection test paper in each layer of the groove of the detection element decreases sequentially from top to bottom, and the diameter of the particles adsorbing the pollutants decreases in turn, and the diameters of the particles of the same layer of the chromatography groove are reduced in turn. The diameter of the particles adsorbed by the test paper is the same.

The present invention also provides a method for using a water body enrichment pollutant concentration detection device, comprising the following steps:

S1. Clamp the four corners of the detection piece with the fixture respectively, adjust the retracted length of the retractor to tighten the detection piece, and place the detection piece at the bottom end of the guide rail;

S2. Manually hold the tripod and place the testing equipment slowly in the water body, the floating body makes the whole testing equipment float in the water body, the sinking height of the floating body is 20cm-35cm relative to the horizontal plane, and the current stabilizer stabilizes the fluctuation of the water flow;

S3. When the water body is basically stable, the slider drives the detection piece to move vertically upward along the guide rail, so that the detection piece moves from the bottom end of the guide rail to 2cm-5cm above the horizontal plane;

S4. Manually hold the triangular support to lift the detection device out of the water surface, remove the detection test paper from the groove of the detection piece in turn, and detect the particle size and concentration of the pollutants absorbed by each detection test paper;

S5. Repeat the sampling and detection of steps S1 to S5, and detect the concentration of enriched pollutants at the depths of different areas of the same water body. Through the detection results of different groups, use the sample estimation method to analyze the pollutants in the area. , to obtain the concentration of enriched pollutants in the entire water body.

In a preferred embodiment of the present invention, in the step S2, during the vertical upward movement of the detection element, the pollutants in the water body continuously enter the surface of the detection element and the grooves of each layer through the pores of the detection element. The more the component moves upward, the more contaminant particles are enriched by the detection test paper in the circular groove at the top of the detection component. After moving to the top of the horizontal plane and standing for a period of time, different particles are gradually adsorbed downward due to the chromatographic effect.

In a preferred embodiment of the present invention, the slider is driven by a built-in micro motor, and the micro motor is also connected with a micro shock absorber.

The present invention solves the defects existing in the background technology, and the present invention has the following beneficial effects:

(1) The present invention provides a triangular support portable pollutant concentration detection device. The detection device can create a relatively stable detection water layer for the interior of the rear floating body by adding a flow stabilizer at the front end of the floating body. Sampling and testing within the depth range of the water layer eliminates the influence of the peaks and valleys caused by the flow of the water body, making the testing results more accurate.

(2) The fluctuating water flow of the present invention hits the arc-shaped inner surface of the arc-shaped plate of the current stabilizer, thereby consuming the energy of the fluctuating water flow and maintaining the stability of the floating block, and the symmetrical guide plates on both sides guide the fluctuating water flow, thereby ensuring The water flow is stable in a certain area behind the current stabilizer, which ensures that the surface of the water body inside the float is basically horizontal and stable, and improves the accuracy of sampling and detection.

(3) The present invention connects the surface of the floating body through a tripod, manually holds the tripod and slowly places the detection equipment in the water layer, so as to minimize the fluctuation of the water layer in the sampling area, and manually hold the tripod to facilitate placement and lifting for detection device.

(4) The circular groove and the equiangular distribution chromatography groove in the detection part of the present invention form a plurality of trapezoidal structures diffused from the center to the surrounding, and the detection test paper is pasted in the groove, and the detection test paper sequentially absorbs the pollutants from top to bottom. The particle diameters decrease sequentially. This design ensures that the contaminants enriched by the detection test strips from top to bottom of the detection piece are gradually reduced. During the vertical upward movement of the detection piece, the pollutant particles in the water body continuously enter the detection piece through the pores of the detection piece. In the surface, circular tank and chromatographic tank, after moving to the horizontal surface and standing for a period of time, different particles are gradually adsorbed downward due to the chromatographic effect, forming a gradient adsorption to ensure the accuracy of detection.

(5) The detection element of the present invention has the same diameter of the particles adsorbed by the detection test paper on the same layer, and the detection test paper is equiangularly diffused, which effectively increases the number of detection data, ensures the repeatability of detection, reduces errors, and makes the detection results. It is closer to the actual data and increases the authenticity of the detection.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative work;

Fig. 1 is the perspective structure diagram of the preferred embodiment of the present invention;

Fig. 2 is the three-dimensional structure diagram of the guide rail and the slider of the preferred embodiment of the present invention;

Figure 3 is a perspective view of the detection element of the preferred embodiment of the present invention;

Fig. 4 is the structure diagram of the detection test paper of the preferred embodiment of the present invention;

In the figure: 100, floating body; 110, triangular bracket;

200, flow stabilizer; 210, arc plate; 220, deflector;

300, guide rail; 310, slider; 320, retractor; 330, clamp; 340, connecting rod;

400, detection piece; 410, circular groove; 420, chromatography groove; 430, detection test paper.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. example limitations.

In the description of this application, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientations or positional relationships indicated by vertical, horizontal, top, bottom, inner, and outer are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and The description is simplified rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second" etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

As shown in FIG. 1 , a water body enrichment pollutant concentration detection device includes a floating body 100 , a flow stabilizer 200 , a guide rail 300 and a detection element 400 . The floating body 100 is a hollow frame structure to define a detection range. The floating body 100 can be a hollow structure with a cross-section of various shapes, such as a square, a circle or other polygons. In this embodiment, a rectangle is used to form the outer surface of the frame, namely The hollow cylindrical structure is used to reduce the impact of water current fluctuations on the floating body 100. In the present invention, the floating body 100 is preferably a hollow cylindrical structure. The detection element 400 is a square filter screen.

In the present invention, the surface of the floating body 100 is connected by the tripod 110. By manually holding the tripod 110 and slowly placing the detection equipment in the water layer, the fluctuation of the water layer in the sampling area is minimized, and the tripod 110 is manually held to facilitate placement and lifting. detection device.

The current stabilizer 200 is formed by connecting an arc-shaped plate 210 and a two-sided symmetrical deflector plate 220 , and one side of the arc-shaped top of the current stabilizer 200 is connected to the floating body 100 . The fluctuating water flow of the present invention hits the arc-shaped inner surface of the arc-shaped plate 210 of the current stabilizer 200, thereby consuming the energy of the fluctuating water flow and maintaining the stability of the floating block. The water flow is stable in a certain area behind the current stabilizer 200, which ensures that the surface of the water body inside the float is basically horizontal and stable, and improves the accuracy of sampling and detection.

As shown in FIG. 2 , a plurality of symmetrical guide rails 300 are connected to the inner cavity of the floating body 100 , and the guide rails 300 are arranged vertically; sports. The slider 310 and the clamps 330 are connected through the retractor 320 , and each clamp 330 clamps a corner of the detection member 400 . Adjacent clamps 330 are connected in sequence by connecting rods 340 to ensure that all sliders 310 move at the same time. By adjusting the retracted length of the retractor 320 , different tightening forces on the detection member 400 can be achieved, so as to avoid inaccurate detection data caused by the wrinkle of the detection member 400 .

The slider 310 is driven by a built-in micro motor to ensure vertical movement of the slider 310. The micro motor is also connected with a micro shock absorber, which can be set by those skilled in the art through common knowledge in the art.

As shown in FIG. 3 and FIG. 4 , the detection element 400 is divided into several layers, the top layer of the detection element 400 is a circular groove 410 , and each layer of the detection element 400 except the top layer is equally angularly distributed with a plurality of chromatography grooves 420 . 420 increases sequentially from top to bottom, and each layer of grooves of the detection element 400 is connected and arranged to form a plurality of trapezoidal structures that spread from the center to the periphery. A detection test paper 430 of matching size is pasted into each layer of the groove of the detection element 400 . The particle diameters of the detection paper 430 in each layer of the groove of the detection element 400 decrease sequentially from top to bottom, and the diameters of the particles absorbed by the detection paper 430 in the same layer of the chromatography groove 420 are the same.

The circular groove 410 and the equiangular distribution chromatography groove 420 in the detection element 400 of the present invention form a plurality of trapezoidal structures diffused from the center to the surrounding, and the detection test paper 430 is pasted in the groove, and the detection test paper 430 sequentially absorbs pollution from top to bottom The particle diameter of the material decreases successively. This design ensures that the pollutants enriched by the detection test strips 430 of the detection element 400 from top to bottom gradually decrease. During the vertical upward movement of the detection element 400, the pollutant particles in the water body pass through the pores of the detection element 400 continuously. After entering the surface of the detection element 400, the circular groove 410 and the chromatography tank 420, after moving to the horizontal surface and standing for a period of time, different particles are gradually adsorbed downward due to the chromatographic effect, forming a gradient of adsorption to ensure detection. accuracy. The detection element 400 of the present invention has the same diameter of the particles absorbed by the detection test paper 430 on the same layer, and the detection test paper 430 is arranged equiangularly diffused, which effectively increases the amount of detection data, ensures the repeatability of detection, reduces errors, and makes the detection results It is closer to the actual data and increases the authenticity of the detection.

The floating body 100 floats on the surface layer of the water body, and the height difference between the sinking height of the floating body 100 and the horizontal plane is -35 cm to -20 cm. By adjusting the vertical distance of the slider 310 moving on the guide rail 300, the height difference between the sinking height of the detection element 400 and the horizontal plane is controlled to be -32 cm to 5 cm, so that the detection element 400 can control the concentration of pollutants at a certain depth in the area of the floating body 100. detection.

The inner wall of the floating body 100 of the present invention is also provided with a water depth detection needle (not shown in the drawings), which is equipped with a water depth sensor to detect the height difference between the sinking height of the floating body 100 and the detection member 400 and the horizontal plane.

To sum up, the present invention provides a portable pollutant concentration detection device of the tripod 110 . The detection device can create a relatively stable detection water for the interior of the rear floating body 100 by adding a flow stabilizer 200 at the front end of the floating body 100 . The water layer is sampled and detected within the depth range of this water layer, which eliminates the influence of the peaks and valleys caused by the flow of the water body, making the detection results more accurate.

The present invention also provides a method of using the water enrichment pollutant concentration detection equipment, comprising the following steps:

S1, clamp the four corners of the detection piece 400 with the fixture 330 respectively, adjust the retracted length of the retractor 320 to tighten the detection piece 400, and place the detection piece 400 at the bottom end of the guide rail 300;

S2. Manually hold the tripod 110 and slowly place the detection device in the water body. The floating body 100 makes the overall detection device float in the water body. The sinking height of the floating body 100 is 20cm-35cm relative to the horizontal plane. At the same time, the current stabilizer 200 stabilizes the fluctuation of the water flow. ;

S3. When the water body is basically stable, the slider 310 drives the detection member 400 to move vertically upward along the guide rail 300, so that the detection member 400 is from the bottom end of the guide rail 300 to a position 2 cm to 5 cm above the horizontal plane;

S4, manually hold the tripod 110 to lift the detection device out of the water surface, remove the detection test paper 430 from the groove of the detection piece 400 in turn, and detect the particle size and concentration of the pollutants absorbed by each detection test paper 430;

Wherein, in S2, during the vertical upward movement of the detection member 400, the pollutants in the water body continuously enter the surface of the detection member 400 and the grooves of each layer through the pores of the detection member 400, and the higher the detection member 400 moves upwards , the detection test paper 430 in the circular groove 410 at the top of the detection element 400 is enriched with more pollutant particles. After moving to the horizontal surface and standing for a period of time, different particles are gradually adsorbed downward due to the chromatographic effect.

The ideal embodiments of the present invention are inspired by the above, and relevant persons can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

A water body enrichment pollutant concentration detection device is characterized in that it includes a floating body, a current stabilizer, a guide rail and a detection piece; the floating body is a hollow cylindrical structure, and the detection piece is a square filter screen; The surface of the floating body to facilitate placing and lifting the floating body; one side of the current stabilizer is connected to the floating body;

A plurality of symmetrical guide rails are connected to the inner cavity of the floating body, and the guide rails are arranged vertically; each of the guide rails is provided with a slider, and the slider and the clamp are connected through a retractor; each of the clamps A corner of the detection piece is clamped; the sliding block drives the detection piece to move along the vertical direction of the guide rail;

The detection element is divided into several layers, the top layer of the detection element is a circular groove, and each layer of the detection element except the top layer is equally angularly distributed with several chromatographic grooves, and the chromatography grooves increase sequentially from top to bottom. Each layer of grooves of the detection piece is connected and formed to form a plurality of trapezoidal structures that spread from the center to the periphery; each layer of the grooves of the detection piece is pasted with a detection test paper of matching size.
The device for detecting the concentration of pollutants enriched in a water body according to claim 1, wherein the adjacent clamps are connected by connecting rods in sequence to ensure that all the sliders move at the same time.
The device for detecting the concentration of pollutants enriched in water bodies according to claim 1, wherein the flow stabilizer is formed by connecting an arc-shaped plate and a two-sided symmetrical guide plate, and the flow stabilizer is arc-shaped. One side of the top is connected to the floating body.
The device for detecting the concentration of pollutants enriched in a water body according to claim 1, wherein the floating body floats on the surface of the water body, and the height difference between the sinking height of the floating body and the horizontal plane is -35cm to -20cm.
A device for detecting the concentration of pollutants enriched in water bodies according to claim 1, characterized in that: by adjusting the vertical distance of the slider moving on the guide rail, the distance between the sinking height of the detection piece and the horizontal plane is controlled. The height difference is -32cm ~ 5cm.
The device for detecting the concentration of pollutants enriched in a water body according to claim 1, characterized in that: by adjusting the retracted length of the retractor, different tightening forces on the detection piece can be achieved.
The device for detecting the concentration of pollutants enriched in water bodies according to claim 1, wherein: the inner wall of the floating body is further provided with a water depth detection needle, which is equipped with a water depth sensor to detect the floating body and the detection element The difference between the sinking height and the horizontal plane.
The device for detecting the concentration of pollutants enriched in water bodies according to claim 1, wherein the detection test paper in each layer of the groove of the detection element is sequentially adsorbed by particle diameters of pollutants from top to bottom. Decrease, the particle diameters adsorbed by the detection test paper in the same layer of the chromatography tank are the same.
Based on the use method of any one of the water enrichment pollutant concentration detection equipment described in claims 1-8, it is characterized in that, comprises the following steps:

S1. Clamp the four corners of the detection piece with the fixture respectively, adjust the retracted length of the retractor to tighten the detection piece, and place the detection piece at the bottom end of the guide rail;

S2. Manually hold the tripod and place the testing equipment slowly in the water body, the floating body makes the whole testing equipment float in the water body, the sinking height of the floating body is 20cm-35cm relative to the horizontal plane, and the current stabilizer stabilizes the fluctuation of the water flow;

S3. When the water body is basically stable, the slider drives the detection piece to move vertically upward along the guide rail, so that the detection piece goes from the bottom end of the guide rail to 2cm to 5cm above the horizontal plane;

S4. Manually hold the triangular support to lift the detection device out of the water surface, remove the detection test paper from the groove of the detection piece in turn, and detect the particle size and concentration of the pollutants absorbed by each detection test paper;

S5. Repeat the sampling and detection of steps S1 to S5, and detect the concentration of enriched pollutants at the depths of different areas of the same water body. Through the detection results of different groups, use the sample estimation method to analyze the pollutants in the area. , to obtain the concentration of enriched pollutants in the entire water body.
A method of using a water body enrichment pollutant concentration detection device according to claim 9, wherein in the step S2, during the vertical upward movement of the detection element, the pollutants in the water body pass through the detection element The pores of the test piece continuously enter the surface of the test piece and each layer of grooves. The more the test piece moves upward, the more contaminant particles are enriched by the test paper in the circular groove at the top of the test piece. Afterwards, different particles are gradually adsorbed downward due to the chromatographic effect.