CN212321155U

CN212321155U - Passive automatically cleaning water quality filtering sampling device

Info

Publication number: CN212321155U
Application number: CN202021345655.XU
Authority: CN
Inventors: 曹建文; 彭雨林; 郑威; 魏艳; 潘文辉
Original assignee: Shenzhen Hopeway Environment Technology Co ltd
Current assignee: Shenzhen Hopeway Environment Technology Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-01-08
Anticipated expiration: 2030-07-10

Abstract

The utility model provides a passive self-cleaning water quality filtering and sampling device, which relates to the technical field of water quality monitoring and sampling and comprises a rectifying cone, a porous ceramic filter ball and a sampling outer tube which are arranged in sequence along the water flow direction; the rectifying cone is in a half-cone shape split along the central axis, the splitting plane is close to the bottom of the water body environment, the conical surface of the rectifying cone is a water facing surface, a water inlet group is arranged on the water facing surface, and the tail end of the rectifying cone is milled with a cambered surface; the porous ceramic filter ball is embedded between the tail end of the rectifying cone and the front end of the sampling outer tube and can rotate; a water outlet group is arranged on the side wall of the tail end of the sampling outer tube; and a sampling inner tube is introduced from the tail end of the sampling outer tube, and the front end of the sampling inner tube extends into a still water area formed behind the porous ceramic filter ball for water quality sampling. The utility model provides a sampling device filters debris, passive automatically cleaning, not only safe in utilization, long service life moreover, not fragile and deformation can reduce the maintenance and change the number of times, and manufacturing cost is lower, is fit for popularizing and applying on a large scale.

Description

Passive automatically cleaning water quality filtering sampling device

Technical Field

The utility model relates to a water quality monitoring sampling technical field especially relates to a passive automatically cleaning water quality filtering sampling device.

Background

Water environmental monitoring requires sampling from a body of water in order to analyze its composition. The on-line monitoring system continuously samples, and the sampling device is installed in the water body environment to be detected for a long time. Sundries such as branches, leaves, household garbage, silt and the like exist in the water environment, so that the water inlet of the sampling device is easily blocked, and sampling failure is caused.

The following three methods have been mainly used in the prior art to avoid clogging. 1. A stainless steel net is adopted to coat the sampling device to prevent impurities from entering; 2. aerating and flushing away the blockage by adopting an air compressor; 3. by adopting the floating body platform, the sampling port is enabled to be back to the water flow direction by controlling the direction of the sampling port, so that the chance of sucking sundries is reduced. These measures prevent clogging to some extent and improve usability, but have certain drawbacks. The stainless steel net is easy to be hung by garbage, and the sampling device and the supporting structure are broken and lost under the impact of water flow; the compressed air aeration requirement is matched with an air compressor, and the solar power supply is difficult to meet due to high voltage and power requirements; the float device is susceptible to deformation and damage under water current impact. These disadvantages result in sampling devices that are short lived, requiring frequent maintenance and replacement.

Therefore, there is a need to develop a passive self-filtering clean water quality sampling device.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art to a passive automatically cleaning water quality filtering sampling device is provided, passive filtration debris, not only safe in utilization, the live time is long moreover, and is not fragile and warp, can reduce maintenance and change number of times, and manufacturing cost is lower, is fit for popularizing and applying on a large scale.

In order to achieve the purpose, the utility model provides a passive automatically cleaning water quality filtering sampling device, include rectification awl, porous ceramic filter ball, the sampling outer tube that sets gradually along the rivers direction and receive the sampling inner tube of sampling outer tube shielding, protection.

The rectifying cone is in a half-cone shape split along the central axis, the splitting plane is close to the bottom of the water body environment, the conical surface of the rectifying cone is a water facing surface, and a water inlet group is arranged on the water facing surface;

the porous ceramic filter ball is embedded between the tail end of the rectifying cone and the front end of the sampling outer tube and can rotate;

the water outlet group is arranged on the side wall of the tail end of the sampling outer tube, the sampling inner tube is introduced from the tail end of the sampling outer tube, and the front end of the sampling inner tube extends to a still water area formed behind the ceramic filter ball to sample water quality.

Further, water inlet group is including being located the first water inlet group and the second water inlet group of the relative both sides of upstream face respectively, the total area of intaking of first water inlet group and the total area inequality of intaking of second water inlet group.

Furthermore, the first water inlet group and the second water inlet group are water inlet slits with different quantities, and the water inlet slits on the two sides are staggered in height. Because the atress is uneven, porous ceramic filter ball inlays between fairing cone and sampling outer tube, rotates under rivers promotion.

Furthermore, the pore diameter of the filter pores is 0.45-180 microns.

Furthermore, sharp edges are arranged at the intersection of the filtering holes and the surface of the ceramic filtering ball.

Further, the end of the sampling outer tube is provided with a supporting frustum with a tip facing the ceramic filter ball, the sampling inner tube penetrates into the supporting frustum from the end and penetrates out from the front end of the supporting frustum, and the water outlet group is arranged at the position of the sampling outer tube corresponding to the side face of the supporting frustum.

Furthermore, the water outlet group comprises a plurality of water outlets which are arranged at intervals in the circumferential direction of the sampling outer pipe.

Furthermore, the total water inlet area of the water inlet group is smaller than the total water outlet area of the water outlet group.

Further, the rectifying cone and the sampling outer pipe are fixed on the quick-assembly bottom plate through bolts, and then the quick-assembly bottom plate is installed in the water body environment.

Furthermore, the tail end of the sampling outer tube is hermetically connected with a steel corrugated hose through an outer hexagonal nut, and the sampling inner tube is communicated with the ground from the inside of the corrugated hose.

The utility model provides a pair of passive automatically cleaning water quality filtering sampling device, sewage in the pipeline have certain velocity of flow, and when the rectifier cone was flowed through, bulky debris were blockked outside, and the slope of the rectifier cone conical surface is just smooth, can not collude in the string rubbish debris. The sewage enters the rectifying cone from the water inlet group and is filtered to meet the water quality filtering standard when passing through the ceramic filter ball. The sampling device does not need energy, filters sundries and is self-cleaning, so that the sampling device is safe to use, long in service time, not easy to damage and deform, capable of reducing maintenance and replacement times, low in manufacturing cost and suitable for large-scale popularization and application.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following provides a detailed description of the present invention with reference to the embodiments of the present invention and the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

The reference numerals in the drawings are explained below.

100. A rectifying cone; 110. a water-facing surface; 120. a water inlet slit; 200. a ceramic filter ball; 210. filtering holes; 300. sampling an outer tube; 310. a water outlet; 400. sampling an inner tube; 500. a still water zone; 600. supporting a frustum; 700. quickly mounting a base plate; 800. a corrugated hose; 900. an outer hexagonal nut.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIG. 1, a passive self-cleaning water quality filtering and sampling device comprises a rectifying cone 100, a porous ceramic filter ball 200 and a sampling outer tube 300 which are arranged in sequence along the water flow direction. In this embodiment, the upstream is the front end and the downstream is the tail end, based on the water flow direction. The porous ceramic filter ball 200 is embedded at the tail end of the rectifier cone 100 and the front end of the sampling outer tube 300, then the rectifier cone 100 and the sampling outer tube 300 are fixed on the quick-assembly bottom plate 700 through bolts, and then the quick-assembly bottom plate 700 is installed in the water body environment. In this embodiment, the water environment is a sewage pipeline, and the quick-mounting bottom plate 700 is installed and fixed on the base of the inner wall of the pipeline.

The side wall of the fairing cone 100 is provided with a water inlet group, in this embodiment, a slit, sewage in the pipeline enters the fairing cone 100 from the slit, and the slit prevents large-volume impurities from entering the cone. The pore size of the filter pores 210 of the porous ceramic filter ball 200 is between 0.45 and 180 micrometers, in this embodiment, the pore size of the filter pores 210 is preferably 1.6 micrometers, and the sewage after coarse filtration flows through the slits and is subjected to secondary filtration by the ceramic filter ball 200. After twice filtration, the impurities with larger volume in the water quality are removed, so that the sewage to be sampled meets the COD and BOD filtration standards. The sampling inner pipe 400 is extended from the end of the sampling outer pipe 300, and the sewage is sampled through the sampling inner pipe 400.

Specifically, the rectifying cone 100 is a half cone, and the specific shape is one half cone of the cone body after the cone body is cut along a central axis plane passing through the cone top and perpendicular to the central point of the bottom surface. During installation, the cut plane is attached to the quick-mounting base plate 700. The conical surface of the rectifying cone 100 is inclined and smooth, so that sundries can not be hooked, and the sampling device cannot be torn. The cone surface of the fairing cone 100 is the upstream surface 110. The fairing cone 100 can be a half cone or a half pyramid.

In this embodiment, sewage in the pipeline has certain velocity of flow, and when the fairing cone 100 was flowed through to the flow, bulky debris were blockked outside, and can not collude on fairing cone 100, and sewage enters into fairing cone 100, is filtering sewage the second time through ceramic filter ball 200. The water quality sample collected by the sampling inner tube 400 meets the filtration standard. The sampling device does not need energy, filters sundries, is self-cleaning, is safe to use, long in service time, not easy to damage and deform, and can reduce maintenance and replacement times.

The side wall at the tail end of the sampling outer pipe 300 is provided with a water outlet group, water entering the sampling device from the water inlet group cannot be sampled and obtained by the sampling inner pipe 400, and redundant water is discharged from the water outlet group. The porous ceramic filter ball 200 is clamped by the fairing cone 100 and the sampling outer tube 300, a relative still water area 500 is formed by shielding the rear part of the ceramic filter ball 200, the water flow rate in the still water area 500 is low, and the front end of the sampling inner tube 400 extends into the still water area 500 for water quality sampling. The water flow rate outside the sampling outer tube 300 is higher than the water flow rate inside the sampling inner tube 400, and the larger the water flow rate is, the lower the edge pressure is, so the residual water inside the sampling outer tube 300 can be sucked out from the water outlet group.

Although the water entering the cone 100 is filtered to remove the bulky impurities, the impurities such as sand and mud still exist in the water, and the ceramic filter ball 200 is embedded at the end of the cone 100, so that particles are accumulated in the gap, and in order to discharge the particles, in the embodiment, the ceramic filter ball 200, the cone 100 and the sampling outer tube 300 are movably embedded, that is, the ceramic filter ball 200 is rotatable. The rivers have the driving force, so in this embodiment, utilize the driving force of rivers, make ceramic filter ball 200 rotate to grind the breakage to the particulate matter. The concrete scheme is that the water inlet group comprises a first water inlet combination second water inlet group which is respectively positioned at two opposite sides of the upstream surface 110, the total water inlet area of the first water inlet group is unequal to the total water inlet area of the second water inlet group, so that the water amount entering the fairing cone 100 in unit time is inconsistent, and under the condition that the flow rates are approximately equal, the water amounts at two sides are inconsistent, so that the stress acting on two sides of the ceramic filter ball 200 is uneven, and the ceramic filter ball 200 is pushed to rotate. And the direction of rotation is random due to fluctuations in the flow velocity vector. The particles clamped between the fairing cone 100 and the ceramic filter ball 200 and between the ceramic filter ball 200 and the sampling outer tube 300 are cut and ground under the rotation of the ceramic filter ball 200, and are discharged into the pipeline along with water flow after being crushed.

In order to increase the grinding and crushing effect, sharp edges are provided at both ends of the filter holes 210 at the intersections with the surface of the ceramic filter ball 200. The sharp edge is beneficial to grinding and crushing the particles during the rotation of the ceramic filter ball 200.

The solid glass ball is embedded between the rectifying cone 100 and the sampling outer tube 300, can rotate in any direction under the disturbance of water flow, and is tightly attached to the front end of the sampling outer tube 300 under the pressure of the water flow to prevent impurities from entering. The glass ball is suitable for sampling relatively clean surface water.

Specifically, the first water inlet group includes three water inlet slits 120, the second water inlet group includes two water inlet slits 120, the water inlet slits 120 are all in a shape of a kidney-shaped hole, the water inlet slit 120 in the shape of the kidney-shaped hole is the preferred shape of this embodiment, and is not the only limitation on the shape of the water inlet slit 120. The first water inlet group and the second water inlet group are respectively located at two opposite sides of the conical surface 110, and the water inlet slits 120 at the two sides are staggered in height.

The water outlet group comprises a plurality of water outlets 310, and the plurality of water outlets 310 are arranged at intervals on the circumferential side surface of the sampling outer tube 300. The sampling outer tube 300 has a high water flow rate and a low pressure, so that the excess water and impurities inside the sampling outer tube 300 are adsorbed and discharged from the water outlet 310. The water outlet 310 is a kidney-shaped hole, and the kidney-shaped hole of the water outlet 310 is the preferred shape of the embodiment, and the shape of the water outlet 310 is not limited only.

The total area of the water outlet group is larger than the total area of the water inlet group, so that redundant water and impurities can be discharged in time, and the freshness of a water sample in the sampling outer tube 300 is guaranteed.

The end of the sampling outer tube 300 is provided with a supporting frustum 600 with the tip facing the ceramic filter ball 200, the supporting frustum 600 is a frustum body, the bottom of the supporting frustum is provided with a skirt, the inner surface of the end of the sampling outer tube 300 is milled with a step to accommodate the skirt, and the outer hexagonal nut 900 is used for compressing and sealing. The sampling inner tube 400 penetrates from the bottom surface of the support frustum 600 and penetrates out from the front end of the support frustum 600, and the front end of the sampling inner tube 400 extends into the still water area 500 for water quality sampling. The water outlet 310 is arranged on the sampling outer tube 300 corresponding to the side surface of the support frustum 600. Through setting up supporting cone 600, played the effect of stabilizing and supporting to sampling inner tube 400, make sampling inner tube 400 can not be in the bending deformation under the impact of rivers, be favorable to getting the water sample. Simultaneously, support frustum 600 has compressed the terminal inner space of sampling outer tube 300, makes the end of sampling outer tube 300 that surplus water sample and impurity can not deposit to the side slope of support frustum 600 has compressed the sampling outer tube volume, makes the terminal velocity of flow accelerate, is favorable to the discharge of surplus water sample and impurity.

The end of the sampling outer tube 300 is hermetically connected with a steel bellows tube by an outer hexagon nut 900, and the bellows tube extends to the ground, and the sampling inner tube 400 is disposed inside the bellows tube and also extends to the ground. The corrugated pipe can be bent, and the steel surface has certain hardness, so that the sampling inner pipe 400 can be effectively prevented from being damaged by extrusion. When sampling water quality, the water quality is sucked through the sampling inner tube 400 on the ground.

In this embodiment, the cone surface of the fairing cone 100 is the upstream surface 110, which resists the impact of water flow and needs high hardness and corrosion resistance, and the rest parts have high corrosion resistance. For example, the sampling inner tube 400 can be a common water tube in life, and the steel corrugated tube can be a common corrugated tube for a water heater, so that the sampling device has lower manufacturing cost under the condition of ensuring the product quality, and is suitable for large-scale popularization and use.

The utility model discloses a be not limited to above-mentioned embodiment, adopt the structure the same with above-mentioned embodiment or be similar, different pipe diameters, different filter bowl material, diameter, filtration pore size, including no filtration pore, water conservancy diversion toper system, different fast-assembling bottom plate combination form, appearance, different slit quantity, position, direction, size, different waist type hole quantity, shape, size, chamfer form are all within the protection scope of the utility model.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A passive self-cleaning water quality filtering and sampling device is characterized by comprising a rectifying cone, a porous ceramic filter ball and a sampling outer tube which are sequentially arranged along the water flow direction;

the water outlet group is arranged on the side wall at the tail end of the sampling outer tube, the sampling inner tube is led into the tail end of the sampling outer tube, and the front end of the sampling inner tube extends into a still water area formed behind the ceramic filter ball to sample water quality.

2. The passive self-cleaning water quality filtering and sampling device of claim 1, wherein the water inlet groups comprise a first water inlet group and a second water inlet group respectively positioned at two opposite sides of the upstream surface, and the total water inlet area of the first water inlet group is not equal to that of the second water inlet group.

3. The passive self-cleaning water quality filtering and sampling device of claim 2, wherein the first water inlet group and the second water inlet group are different numbers of water inlet slits, and the water inlet slits on both sides are staggered in height.

4. The passive self-cleaning water quality filtering and sampling device of claim 1, wherein the pore size of the porous ceramic filter ball is 0.45 to 180 microns.

5. The passive self-cleaning water quality filtering and sampling device of claim 4, wherein the intersection of the filtering holes and the surface of the ceramic filtering ball is provided with a sharp edge.

6. The passive self-cleaning water quality filtering and sampling device of claim 1, wherein the end of the sampling outer tube is provided with a supporting frustum with a tip facing the ceramic filter ball, the sampling inner tube penetrates into the supporting frustum from the end and penetrates out from the front end of the supporting frustum, and the water outlet set is arranged at a position of the sampling outer tube corresponding to the side surface of the supporting frustum.

7. The passive self-cleaning water quality filtering and sampling device of claim 6, wherein the water outlet set comprises a plurality of water outlets circumferentially spaced around the sampling outer tube.

8. The passive self-cleaning water quality filtering and sampling device of claim 1, wherein the total area of the inlet water of the inlet set is smaller than the total area of the outlet water of the outlet set.

9. The passive self-cleaning water quality filtering and sampling device of claim 1, wherein the rectifier cone and the sampling outer tube are fixed on the quick-mounting base plate through bolts, and then the quick-mounting base plate is installed in the water environment.

10. The passive self-cleaning water quality filtering and sampling device of claim 1, wherein the end of the sampling outer tube is hermetically connected with a steel corrugated hose through an outer hexagonal nut, and the sampling inner tube is communicated with the ground from the inside of the corrugated hose.