Real-time water sampling equipment for water pollution detection

Abstract

The invention discloses real-time water body sampling equipment for water pollution detection, which comprises a sampling head, a hollow connecting piece and a flexible pipe, the hollow connecting piece and the flexible pipe are used for communicating the sampling head with pump function equipment, the sampling head comprises a sampling barrel body communicated with the bottom end of the connecting piece, and the sampling barrel body is wrapped by a filtering piece; wherein the surface of the sampling barrel body is provided with a plurality of groups of blowing and sucking dual-purpose sprayers which are distributed at equal angles, and the sprayers blow out fluid through pump function equipment to perform back-flushing cleaning on a filter before sampling. According to the real-time water body sampling equipment for water pollution detection, a sampling mechanism and an external filter barrel for protection can be effectively cleaned by utilizing a backflushing effect, so that the subsequent sampling cleanliness is prevented from being influenced; meanwhile, driving force is generated in combination with flowing of fluid in different directions, multi-form cleaning of washing and the filter barrel or multi-form cleaning of pumping and sampling and the filter barrel is synchronously achieved, the underwater sampling device is suitable for a more complex underwater sampling environment and is more energy-saving and environment-friendly, and the follow-up sampling detection effect is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pollution detection sampling, in particular to a water body real-time sampling equipment for water pollution detection. BACKGROUND

[0002] The detection sampling of water pollution treatment is one of manual sampling by staff, and the other is to immerse the sampling mechanism in the water body for a long time or above the water body, and when detection is needed, the pump equipment draws the water body through the sampling mechanism into the sample containing area containing the detection mechanism, or does not contain the detection mechanism through the unified collection by staff, for example, the existing technology of the announcement number CN219265805U of a black and odorous water body real-time monitoring and early warning device, including a unit monitoring assembly, the unit monitoring assembly contains a monitoring box structure, a sample processing structure and a sampling structure; the sampling structure is rotatably connected with a plurality of unit sampling wheels on the body, and the plurality of unit sampling wheels are distributed longitudinally along the sampling structure body; a unit sampling head is fixed on the unit sampling wheel, a sample inlet frame is arranged on the unit sampling head, a plurality of liquid guide holes are formed in the sample inlet frame; a movable pushing plate is movably arranged at one end of the sample inlet frame away from the single opening, and is driven by a hydraulic telescopic rod fixed on the movable pushing plate to move back and forth in the sample inlet frame to clean and scrape the sample inlet frame; it realizes accurate, comprehensive and objective monitoring of the actual internal material exchange of the complex black and odorous water body pollution, and realizes the combination of the above-mentioned multiple ways, so as to realize accurate, comprehensive and objective monitoring of the actual internal material exchange of the complex black and odorous water body pollution. Or the existing technology of the announcement number CN212363783U of the utility model discloses a water pollution real-time sampling device for environmental engineering detection, which comprises a bearing plate, a plurality of through holes are formed in the surface of the bearing plate, a liquid taking cylinder is installed in the through hole, the lengths of the liquid taking cylinders penetrating out of the bearing plate from the bottom ends are different; a rotating sleeve is rotatably installed outside the liquid taking cylinder, the upper end of the rotating sleeve is higher than the upper surface of the liquid taking cylinder, a supporting plate is installed on the upper end of the rotating sleeve, a screw rod is installed on the surface of the supporting plate through threads, a sealing block is installed at the bottom end of the screw rod, and a driving assembly is installed on the upper surface of the bearing plate. The beneficial effect is that all the rotating sleeves can be driven to rotate by the driving assembly, the sealing block can be lifted and lowered, and the sampling operation of the liquid taking cylinders with different lengths on different depth water bodies can be realized, so that the number of water body sampling samples is improved, and the detection efficiency of the water body is improved.

[0003] The above-mentioned existing technology improves the water body detection efficiency and the sampling efficiency, and has a certain inspiration effect on actual production, but still has certain deficiencies. Unlike temporary sampling mechanism, real-time sampling mechanism needs to be immersed in water for a long time, even if a filter screen is used to protect the sampling head, the sampling effect is still affected by water garbage blockage and interference of aquatic organisms. SUMMARY

[0004] The present application aims to provide a water pollution detection water real-time sampling device to solve the above background problems, which is different from the temporary sampling mechanism, and the real-time sampling mechanism needs to be soaked in water for a long time. Even if the sampling head is protected by the filter screen, it is easy to be blocked by water garbage and disturbed by aquatic organisms, which affects the sampling effect.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a water pollution detection water real-time sampling device, comprising a sampling head and a hollow connector and a flexible pipe for connecting the sampling head with a pump function device, the sampling head comprises a sampling barrel connected to the bottom end of the connector, and the sampling barrel is wrapped by a filter, wherein the surface of the sampling barrel is provided with a plurality of groups of blow-suction dual-purpose nozzles distributed at equal angles, and the nozzles are back-flushed by the pump function device to clean the filter before sampling.

[0006] Further, the sampling barrel is rotatably installed at the bottom end of the connector, and a driving mechanism installed in the connector is used to drive the rotation of the sampling barrel.

[0007] Further, the driving mechanism comprises a turbine distributed perpendicular to the fluid flow direction, and the turbine is connected to the inner wall of the sampling barrel through a connecting rod; Further, the turbine and the connecting rod are rotatably installed in the connector.

[0008] Further, the filter is a first filter barrel wrapped around the sampling barrel, wherein the first filter barrel slidingly connected to the lower half of the connector is also connected to a lifting mechanism, wherein the lifting mechanism is used to lift or lower the first filter barrel in linkage with the rotation of the sampling barrel.

[0009] Further, the lifting mechanism comprises a vertical cylinder fixed to the inner surface of the bottom wall of the first filter barrel. Further, the vertical cylinder is threadedly connected to the tail end of the threaded segment of the connecting rod, and the lower half of the connecting rod is rotatably penetrated through the bottom wall of the sampling barrel.

[0010] Further, the filter also comprises a second filter barrel, and the top end of the second filter barrel is connected to a rotating mechanism, and the rotating mechanism cooperates with the movement of the first filter barrel to generate the effect of driving the rotation of the second filter barrel.

[0011] Further, the second filter barrel is rotatably connected to the first filter barrel through a pin shaft at the bottom end, and the two are coaxially distributed.

[0012] Further, the rotating mechanism comprises a horizontal rod and an inclined groove slidingly fitted to the inner end of the horizontal rod, wherein the outer end of the horizontally distributed horizontal rod is fixed to the inner wall of the top end of the second filter barrel. As a further, the first filter bucket drives the second filter bucket to move synchronously, and the chute is inclinedly distributed along the cylindrical surface of the connecting piece.

[0013] Compared with the prior art, the water pollution detection water real-time sampling device can effectively clean the sampling mechanism and the external filter bucket for protection by using the backwashing effect, avoid affecting the cleanliness of subsequent sampling, and simultaneously generate driving force by combining the flow of fluid in different directions and achieve multi-form cleaning of the filter bucket or suction sampling and multi-form cleaning of the filter bucket, which is suitable for more complex underwater sampling environment, more energy-saving and environmentally friendly, effectively guarantees the subsequent sampling detection effect, and specific as shown in the following content.

[0014] Suction sampling + backwashing function: the sampling mechanism is designed as a rotatable sampling barrel structure, which is matched with the blow-and-suction dual-purpose nozzle installed on the surface and the pump function equipment connected at the end of the flexible pipe, so that the sampling barrel can realize water pumping sampling and water flushing functions, on the one hand, the nozzle output end and the filter surface can be cleaned by using flushing, on the other hand, the use of the turbine structure can drive the sampling barrel to rotate, so that more uniform cleaning and sampling effect can be achieved.

[0015] Multi-form cleaning effect realized by multi-dimensional movement of multiple filter buckets: the unique connecting structure design of the inner first filter bucket can drive the vertical movement of the sampling barrel without using additional electric drive equipment, and when driving the synchronous movement of the outer filter bucket, the first filter bucket can also make the second filter bucket of the outer layer rotate, thereby comprehensively realizing the multi-dimensional cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the connecting piece structure of the first embodiment of the present application; Figure 3 It is a schematic diagram of the sampling barrel structure of the present application; Figure 4 It is a schematic diagram of the turbine distribution structure of the present application; Figure 5 It is a schematic diagram of the vertical cylinder distribution structure of the present application; Figure 6 It is a schematic diagram of the connecting piece structure of the second embodiment of the present application; Figure 7 It is a schematic diagram of the chute distribution structure of the present application; Figure 8 It is a schematic diagram of the structure after the second filter bucket rises.

[0017] In the figure: 1, flexible pipe; 2, support; 3, connecting piece; 4, sampling barrel; 5, first filter barrel; 6, connecting rod; 7, turbine; 8, vertical cylinder; 9, second filter barrel; 10, cross bar; 11, chute. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] Please refer to Figures 1-8 The present application provides the following technical solutions: Embodiment one: The scheme disclosed in the present embodiment is to solve the problems existing in the prior art. Compared with directly using a filter to block water garbage in the prior art, the scheme shown in Figure 1 and Figure 3 includes a sampling head and a hollow connecting piece 3 and a flexible pipe 1 for connecting the sampling head with a pump function device. The sampling head includes a sampling barrel 4 connected to the bottom end of the connecting piece 3, and the sampling barrel 4 is wrapped by a filter. A plurality of groups of blow-and-suck dual-purpose nozzles are installed on the surface of the sampling barrel 4 at equal angles. The nozzles are used to blow fluid to backflush the filter before sampling by the pump function device. The basic principle is that the support 2 is installed on the shore or a designated area of the water area, and the winch is used to wind or loosen the flexible pipe 1, so as to adjust the height of the sampling head immersed in the water. At the same time, the pump device is used to sample water and the designated detection mechanism is used for detection. The flexible pipe 1 in the present scheme is also used to circulate the fluid for backflushing. The fluid passes through the plurality of groups of nozzles distributed at equal angles, so that the fluid can act more uniformly on the surface of the filter, thereby avoiding that the surface of the sampling head is blocked seriously, which leads to sampling difficulty or affects the accuracy of detection data.

[0020] The scheme disclosed in the present embodiment is to further improve the cleanliness and uniformity of sampling work. Specifically, as Figures 2-4As shown, the sampling barrel 4 is rotatably installed at the bottom end of the connecting piece 3, and the driving mechanism installed in the connecting piece 3 is used to drive the sampling barrel 4 to rotate, and the driving mechanism comprises a turbine 7 distributed vertically to the fluid flow direction, the turbine 7 is connected to the inner wall of the sampling barrel 4 through a connecting rod 6, and the turbine 7 and the connecting rod 6 are both rotatably installed in the connecting piece 3. The reason why the sampling barrel 4 is designed to be rotatable is that on the one hand, the fluid sprayed in the sampling barrel 4 can act on the surface of the filter more fully to achieve better cleaning effect, and on the other hand, it can avoid the influence of impurities in the water on the cleanliness of sampling as much as possible during sampling. The above-mentioned cleaning effect and sampling effect can be achieved by directly connecting the waterproof motor built in the connecting piece 3 with the sampling barrel 4, or other schemes can be used instead. During the backwashing process, the water flow directly impacts on the turbine 7, thereby generating a rotating driving force to drive the connecting rod 6 and the sampling barrel 4 installed at the bottom end of the connecting rod 6 to rotate. This kind of way is suitable for the scheme of only realizing the cleaning of the filter, if the scheme of improving the sampling effect is also realized, another turbine 7 symmetrically distributed with the original turbine 7 can be installed on this basis, so that driving effect can be generated for different fluid flow directions, the advantage is that it can adapt to relatively complex sampling environment, and the disadvantage is that the pump equipment needs to maintain a large power during operation.

[0021] Embodiment two: Although the sampling device in the water for a long time is designed with a filter screen to avoid the sampling head being blocked, the garbage or waterweed in the water or even the algae on the surface will affect the permeability of the filter screen and the sampling function of the sampling head itself, therefore, in order to solve this problem, the scheme disclosed in this embodiment is to further improve the cleaning effect. Unlike the sampling head in the above-mentioned embodiment which is rotatable and has backwashing function, the sampling mechanism in this embodiment is to redesign the installation form of the filter screen, the filter screen is a first filter barrel 5 wrapped around the sampling barrel 4, wherein the first filter barrel 5 slidingly connected to the lower half of the connecting piece 3 is also connected to a lifting mechanism, wherein the lifting mechanism is used to link and lift or lower the first filter barrel 5 when the sampling barrel 4 rotates, the lifting mechanism comprises a vertical cylinder 8 fixedly connected to the inner surface of the bottom wall of the first filter barrel 5, the vertical cylinder 8 is threadedly connected with the tail end of the connecting rod 6, and the lower half of the connecting rod 6 is rotatably penetrated through the bottom wall of the sampling barrel 4. When the fluid impacts on the turbine 7 to make the connecting rod 6 rotate or the motor directly drives the connecting rod 6 to rotate, it can not only drive the sampling barrel 4 to rotate, but also drive the first filter barrel 5 to vertically slide along the axis of the connecting piece 3 under the action of the threaded transmission between the threaded segment at the bottom end of the connecting rod 6 and the vertical cylinder 8. The vertical movement of the filter barrel itself can achieve a certain effect of separating from the surface residues, and combined with the fluid sprayed in the rotating process of the sampling barrel 4, a better cleaning effect can be achieved, and the same is true during sampling.

[0022] The scheme disclosed in the embodiment is further expanded on the basis of the above-mentioned embodiment, and the expansion direction is to increase the cleanliness of the sampling sample by adding a plurality of filter barrels to improve the blocking effect, and at the same time, in order to avoid mesh blockage, the second filter barrel 9 of the outer layer can also be rotated alone. The filter element also includes a second filter barrel 9, and the top end of the second filter barrel 9 is connected with a rotating mechanism. The rotating mechanism drives the second filter barrel 9 to rotate through the movement of the first filter barrel 5. The second filter barrel 9 is rotatably connected to the first filter barrel 5 through a pin shaft at the bottom end, and the two are coaxially distributed. The rotating mechanism includes a horizontal rod 10 and a chute 11 that slides with the inner end of the horizontal rod 10. The outer end of the horizontally distributed horizontal rod 10 is fixed on the inner wall of the top end of the second filter barrel 9. The first filter barrel 5 drives the second filter barrel 9 to move synchronously, and the chute 11 is inclinedly distributed along the cylindrical surface of the connecting piece 3. The rotating mode is that when the first filter barrel 5 moves vertically, it drives the second filter barrel 9 to move synchronously. At this time, the horizontal rod 10 arranged at the top end will synchronously slide in the chute 11. Since the second filter barrel 9 is rotatably connected to the first filter barrel 5, the second filter barrel 9 will rotate along the vertical axis during the movement of the horizontal rod 10 in the chute 11, based on the guiding shape of the chute 11. Therefore, under the combined influence of lifting, rotating and internal fluid injection, better cleaning effect can be achieved, and sampling work is the same.

[0023] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0025] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, 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. A water body real-time sampling device for water pollution detection, comprising a sampling head and a hollow connecting piece (3) and a flexible pipe (1) for connecting the sampling head with a pump function device, characterized in that: The sampling head comprises a sampling barrel (4) connected to the bottom end of the connecting piece (3), and the sampling barrel (4) is wrapped by a filter element, wherein the surface of the sampling barrel (4) is provided with a plurality of groups of blow-suction dual-purpose nozzles distributed at equal angles, and the nozzles are used to blow fluid to the filter element for back flushing before sampling through a pump function device.

2. The water body real-time sampling device for water pollution detection according to claim 1, characterized in that: The sampling barrel (4) is rotatably installed at the bottom end of the connecting piece (3), and a driving mechanism installed in the connecting piece (3) is used to drive the sampling barrel (4) to rotate.

3. The water body real-time sampling device for water pollution detection according to claim 2, characterized in that: The driving mechanism comprises a turbine (7) distributed vertically to the fluid flow direction, the turbine (7) is connected to the inner wall of the sampling barrel (4) through a connecting rod (6), and the turbine (7) and the connecting rod (6) are rotatably installed in the connecting piece (3).

4. The water body real-time sampling device for water pollution detection according to claim 3, characterized in that: The filter element is a first filter barrel (5) wrapped around the sampling barrel (4), wherein the first filter barrel (5) slidingly connected to the lower half of the connecting piece (3) is also connected to a lifting mechanism, wherein the lifting mechanism is used to link and lift or lower the first filter barrel (5) when the sampling barrel (4) rotates.

5. The water body real-time sampling device for water pollution detection according to claim 4, characterized in that: The lifting mechanism comprises a vertical cylinder (8) fixed to the inner surface of the bottom wall of the first filter barrel (5), the vertical cylinder (8) is threadedly connected to the tail end of the connecting rod (6), and the lower half of the connecting rod (6) is rotatably penetrated through the bottom wall of the sampling barrel (4).

6. The water body real-time sampling device for water pollution detection according to claim 4, characterized in that: The filter element further comprises a second filter barrel (9), and the top end of the second filter barrel (9) is connected to a rotating mechanism, and the rotating mechanism is driven by the movement of the first filter barrel (5) to produce the effect of driving the second filter barrel (9) to rotate.

7. The water body real-time sampling device for water pollution detection according to claim 6, characterized in that: The second filter barrel (9) is rotatably connected to the first filter barrel (5) through a pin shaft at the bottom end, and the two are coaxially distributed.

8. The water body real-time sampling device for water pollution detection according to claim 7, characterized in that: The rotating mechanism comprises a cross rod (10) and an inclined groove (11) slidingly fitted to the inner end of the cross rod (10), wherein the outer end of the horizontally distributed cross rod (10) is fixed to the inner wall of the top end of the second filter barrel (9), the first filter barrel (5) drives the second filter barrel (9) to move synchronously, and the inclined groove (11) is inclinedly distributed along the cylindrical surface of the connecting piece (3).

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