Anti-blocking detection sampling equipment for pollutants in wastewater

Abstract

The invention relates to the technical field of detection and sampling, and particularly discloses anti-blocking detection and sampling equipment for pollutants in wastewater, which comprises a storage sleeve, a sampling device, a pretreatment device and a temperature control device. Multi-point synchronous sampling of waste water in a limited space is achieved through the multiple sets of sampling pipes, samples are mixed in advance in the flow dividing barrel, and the spatial representativeness of sampling is improved; the filter screen is arranged at the bottom of the sampling pipe, so that large-volume impurities are effectively prevented from entering the sampling pipe to cause blockage; through the in-situ inhibitor injection and temperature control device, the component change in the sample transfer process is reduced, the accuracy and reliability of the detection result are improved, the anti-blocking detection sampling equipment for the pollutants in the wastewater can sample the wastewater in a limited space, and multiple groups of sampling pipes are used for absorbing water from different space points at the same time, so that the sampling efficiency is improved. The stability of a detection result is improved.

Description

Technical Field

[0001] This invention relates to the field of detection and sampling technology, specifically to a wastewater pollutant anti-clogging detection and sampling device. Background Technology

[0002] Against the backdrop of booming modern industry, various industrial activities generate large quantities of wastewater containing complex pollutants. If this wastewater is discharged directly into natural water bodies without effective treatment, it will cause serious damage to the ecological environment and pose a threat to human health and ecological balance. Therefore, the scientific and accurate detection of pollutants in wastewater is of great significance, and obtaining representative water samples is a prerequisite for accurate detection. In fields such as environmental monitoring, industrial process control, and wastewater treatment, the detection results of pollutant concentrations in wastewater are highly dependent on the accuracy and reliability of the sampling process. The representativeness, timeliness, and stability of the sampling directly affect the subsequent analytical results.

[0003] In the prior art, Chinese patent CN112284817B discloses a wastewater sampling device for environmental monitoring. This device can achieve stratified sampling of wastewater at different depths and prevent filter clogging through a filter screen and scraper structure. However, the overall size of the sampler is fixed, making it difficult to apply to wastewater sampling scenarios in confined spaces. Furthermore, after sampling, the sample still needs to be transferred to other containers for pretreatment, increasing sample exposure time and operational steps, and posing a risk of sample contamination and compositional changes.

[0004] Therefore, it is necessary to provide a wastewater pollutant detection and sampling device that is structurally sound, suitable for limited spaces, capable of multi-point simultaneous sampling, and can complete pretreatment during the sampling process. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a wastewater pollutant anti-clogging detection and sampling device, comprising: A storage sleeve, wherein a fixing plate is fixedly connected to the inner wall of the storage sleeve near the top, and a hanging bracket is fixedly connected to the top of the fixing plate; and a limit groove is formed on the inner wall of the storage sleeve. A sampling device, wherein the outer side of the sampling device is fixedly connected to the inner wall of the limiting groove; The limiting groove is provided in multiple sets, and the multiple sets of the limiting groove are evenly distributed inside the receiving sleeve; The sampling device includes: A sampling cylinder has a threaded sleeve threadedly connected to its inner wall near the top. The top of the threaded sleeve is connected to a sampling pump. A sealing sleeve is fixedly connected to the bottom of the sampling cylinder. A flow divider is connected to the bottom of the sealing sleeve. A sampling tube is connected to the bottom of the flow divider. A filter screen is fitted and fixedly connected to the bottom of the sampling tube to prevent large impurities from entering the sampling tube and causing blockage. The pretreatment device, the bottom of which is fixedly connected to the outer wall of the diversion cylinder; A temperature control device, wherein the temperature control device is sleeved and fixed on the outside of the sampling cylinder.

[0006] Preferably, the top and bottom of the sampling cylinder are both open, and multiple sets of sampling tubes are provided, which are evenly distributed at the bottom of the diverter cylinder, and the sampling tubes are configured as elastic structures.

[0007] Preferably, the sampling device further includes a folding plate, and multiple sets of folding plates are provided. The multiple sets of folding plates are fixedly connected to each other by elastic rubber pads. A positioning plate is rotatably connected to the top of the folding plate through a rotating bracket. A sliding plate is fixedly connected to one side of the positioning plate. An electric slider inside an electric slide rail is fixedly connected to the side of the sliding plate away from the positioning plate. An arc-shaped spring is fixedly connected to one side of the positioning plate.

[0008] Preferably, the outer side of the electric slide rail is fixedly connected to the inner wall of the limiting groove, the end of the arc spring away from the positioning plate is fixedly connected to one side of the folding plate, and the inner wall of the elastic rubber pad is fixedly connected to the outer wall of the sampling tube through a bracket.

[0009] Preferably, the pretreatment device includes a storage tank, the top of which is connected to a first pump. The outlet of the first pump is connected to a connecting pipe, and the end of the connecting pipe away from the first pump is connected to a drain pipe. A micro turbine is fitted around the outside of the drain pipe and rotatably connected to it via a bearing. The high-speed inflow of water sample impacts the turbine blades, thereby driving the micro turbine to rotate. Simultaneously, the first pump is activated, using it to discharge the inhibitor inside the storage tank into the connecting pipe, and then into the drain pipe. The inhibitor inside the drain pipe pushes out of the plug and is injected into the sampling cylinder from the turbine shaft, releasing the inhibitor to prevent microbial degradation and compositional changes. This reduces the need to transfer samples to other containers for further pretreatment, thus enabling efficient mixing of the inhibitor and wastewater without the need for additional hybrid power.

[0010] Preferably, the liquid storage tank is sleeved on the outside of the diverter cylinder and fixedly connected to the outer wall of the diverter cylinder, the outer side of the drain pipe is fixedly connected to the inner wall of the sampling cylinder through a bracket, and the connecting pipe passes through the side wall of the diverter cylinder and extends into the interior of the diverter cylinder, and is fixedly connected to the side wall of the diverter cylinder.

[0011] Preferably, the pretreatment device further includes a plug, the outer side of which is fixedly connected to a return spring via a bracket, the end of the return spring away from the plug being fixedly connected to the outer side of the drain pipe, and the bottom of the plug extending into the interior of the drain pipe and slidingly connected to the inner wall of the drain pipe.

[0012] Preferably, the temperature control device includes an insulation shell, an annular sealing gasket is fixedly connected to the top of the insulation shell, a spiral heat-conducting tube is fixedly connected to the inner wall of the insulation shell, one end of the spiral heat-conducting tube is connected to an extension tube, one end of the extension tube is connected to a second liquid pump, the inlet end of the second liquid pump is connected to an annular cooling tube, and the outer side of the second liquid pump is connected to an addition tube.

[0013] Preferably, the heat insulation shell is fitted over the outside of the sampling cylinder, the bottom of the heat insulation shell is fixedly connected to the outer wall of the sealing sleeve, the annular sealing gasket is fitted over the outside of the sampling cylinder and fixedly connected to the sampling cylinder, the spiral heat-conducting tube is fitted over the outside of the sampling cylinder and fixedly connected to the sampling cylinder, the annular cooling tube is filled with coolant, the bottom of the annular cooling tube is fixedly connected to the top of the receiving sleeve, and the outside of the second liquid pump is fixedly connected to the outer wall of the heat insulation shell through a bracket.

[0014] Beneficial effects Compared with the prior art, the present invention has at least the following beneficial effects: 1. By using multiple sets of deployable sampling tubes, multi-point synchronous sampling can be achieved in a limited space. The samples are premixed in the flow divider, which improves the spatial representativeness of the sampling and avoids sampling errors caused by local non-uniformity.

[0015] 2. By installing a filter screen at the bottom of the sampling tube, large-volume impurities can be effectively prevented from entering the sampling tube and causing blockage.

[0016] 3. The pretreatment device enables in-situ injection of inhibitors, reducing sample transfer steps, lowering the risk of contamination, and improving sample stability.

[0017] 4. The samples are preserved at low temperatures using a temperature control device to further ensure the accuracy and reliability of the test results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the wastewater pollutant anti-clogging detection and sampling device of the present invention; Figure 2This is a schematic diagram of the internal structure of the storage sleeve of the present invention; Figure 3 This is a schematic diagram of the structure of the elastic rubber pad of the present invention; Figure 4 This is a schematic diagram of the structure of the sliding plate of the present invention; Figure 5 This is a schematic diagram of the structure of the folding plate of the present invention; Figure 6 This is a schematic diagram of the sampling tube of the present invention; Figure 7 This is a schematic diagram of the internal structure of the sampling tube of the present invention; Figure 8 This is a schematic diagram of the internal structure of the sealing sleeve of the present invention; Figure 9 This is a schematic diagram of the internal structure of the thermal insulation shell of the present invention.

[0019] In the diagram: 1. Storage sleeve; 2. Fixing plate; 3. Suspension bracket; 4. Limiting groove; 5. Sampling device; 51. Sampling cylinder; 52. Threaded sleeve; 53. Sampling pump; 54. Sealing sleeve; 55. Diverter cylinder; 56. Sampling tube; 57. Filter screen; 58. Pretreatment device; 581. Storage tank; 582. First pump; 583. Connecting pipe; 584. Drain pipe; 585. Micro turbine; 586. Plug 587. Head; 59. Return spring; 50. Temperature control device; 51. Insulation shell; 592. Annular sealing gasket; 593. Spiral heat conduction pipe; 594. Extension pipe; 595. Second liquid pump; 596. Annular cooling pipe; 597. Addition pipe; 510. Folding plate; 511. Elastic rubber pad; 512. Rotating bracket; 513. Positioning plate; 514. Sliding plate; 515. Electric slide rail; 516. Arc spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] For the first embodiment, please refer to... Figures 1-6 This invention provides a technical solution: a wastewater pollutant anti-clogging detection and sampling device, comprising: Storage sleeve 1, a fixing plate 2 is fixedly connected to the inner wall of storage sleeve 1 near the top, a hanging bracket 3 is fixedly connected to the top of fixing plate 2, and a limit groove 4 is opened on the inner wall of storage sleeve 1. Sampling device 5, the outer side of sampling device 5 is fixedly connected to the inner wall of limiting groove 4; Multiple sets of limiting grooves 4 are provided, and the multiple sets of limiting grooves 4 are evenly distributed inside the receiving sleeve 1; The sampling device 5 includes: Sampling cylinder 51, with a threaded sleeve 52 threadedly connected to the inner wall of the sampling cylinder 51 near the top, the top of the threaded sleeve 52 connected to the sampling pump 53, the bottom of the sampling cylinder 51 fixedly connected to the sealing sleeve 54, the bottom of the sealing sleeve 54 connected to the diverter cylinder 55, the bottom of the diverter cylinder 55 connected to the sampling tube 56, and the bottom of the sampling tube 56 fitted with and fixedly connected to the filter screen 57. The pretreatment device 58 is fixedly connected at its bottom to the outer wall of the diversion cylinder 55. Temperature control device 59 is sleeved and fixed on the outside of sampling cylinder 51.

[0022] The top and bottom of the sampling cylinder 51 are both open. Multiple sets of sampling tubes 56 are provided, and the multiple sets of sampling tubes 56 are evenly distributed at the bottom of the diverter cylinder 55. The sampling tubes 56 are designed as elastic structures.

[0023] The sampling device 5 also includes a folding plate 510, which is provided in multiple sets. The multiple sets of folding plates 510 are fixedly connected to each other by elastic rubber pads 511. The top of the folding plate 510 is rotatably connected to a positioning plate 513 through a rotating bracket 512. A sliding plate 514 is fixedly connected to one side of the positioning plate 513. An electric slider inside an electric slide rail 515 is fixedly connected to the side of the sliding plate 514 away from the positioning plate 513. An arc spring 516 is fixedly connected to one side of the positioning plate 513.

[0024] The outer side of the electric slide rail 515 is fixedly connected to the inner wall of the limiting groove 4, the end of the arc spring 516 away from the positioning plate 513 is fixedly connected to one side of the folding plate 510, and the inner wall of the elastic rubber pad 511 is fixedly connected to the outer wall of the sampling tube 56 through the bracket.

[0025] The pretreatment device 58 includes a storage tank 581, the top of which is connected to a first pump 582. The outlet of the first pump 582 is connected to a connecting pipe 583. The end of the connecting pipe 583 away from the first pump 582 is connected to a drain pipe 584. A micro turbine 585 is sleeved on the outside of the drain pipe 584 and rotatably connected to it via a bearing.

[0026] The liquid storage tank 581 is fitted on the outside of the diversion cylinder 55 and is fixedly connected to the outer wall of the diversion cylinder 55. The outer side of the drain pipe 584 is fixedly connected to the inner wall of the sampling cylinder 51 through a bracket. The connecting pipe 583 passes through the side wall of the diversion cylinder 55 and extends into the interior of the diversion cylinder 55, and is fixedly connected to the side wall of the diversion cylinder 55.

[0027] In use, the operator fixes the external telescopic mechanism to the suspension bracket 3 using bolt and nut assemblies. Then, the external telescopic mechanism pushes the suspension bracket 3, which moves the storage sleeve 1 via the fixing plate 2, extending the storage sleeve 1 from the confined space into the wastewater to be sampled until the sampling tube 56 reaches the sampling position. Then, the electric slide rail 515 is activated, and the electric slider inside the electric slide rail 515 drives the sliding plate 514 to slide down. The sliding plate 514, via the positioning plate 513, drives the folding plate 510 to slide. The folding plate 510 gradually slides out from inside the storage sleeve 1 and is pulled by the arc spring 516. The arc spring 516 pulls the folding plate 510 to rotate around the axis of the rotating bracket 512. The folding plate 510, originally in a vertical position, gradually unfolds outwards. The unfolded folding plate 510 causes the elastic rubber pad 511 to open. The sampling tube 56 is unfolded by the support, and then the sampling pump 53 is turned on. The sampling pump 53 draws the sample from the sampling tube 56 into the distribution cylinder 55, and then discharges it into the sampling cylinder 51 through the distribution cylinder 55. When the wastewater sample passes through the filter screen 57, the larger volume impurities inside are intercepted and filtered, preventing large volume impurities from entering the sampling tube 56 and causing blockage. Through the setting of the folding plate, elastic rubber pad and sampling tube, wastewater can be sampled in a limited space. Moreover, multiple sets of sampling tubes 56 are used to simultaneously draw water from different spatial points. This water enters the distribution cylinder 55 from the inside of the sampling tube 56 for pre-mixing before entering the sampling cylinder 51. The final sample obtained is a mixed sample within a spatial range, rather than a point sample. This greatly improves the spatial representativeness of the sample for the water body at this depth and avoids sampling errors caused by local inhomogeneity.

[0028] For the second embodiment, please refer to... Figures 1-9 Based on Embodiment 1, the pretreatment device 58 further includes a plug 586. A return spring 587 is fixedly connected to the outside of the plug 586 via a bracket. The end of the return spring 587 away from the plug 586 is fixedly connected to the outside of the drain pipe 584. The bottom of the plug 586 extends into the interior of the drain pipe 584 and is slidably connected to the inner wall of the drain pipe 584.

[0029] The temperature control device 59 includes an insulation shell 591, an annular sealing gasket 592 is fixedly connected to the top of the insulation shell 591, a spiral heat-conducting pipe 593 is fixedly connected to the inner wall of the insulation shell 591, one end of the spiral heat-conducting pipe 593 is connected to an extension pipe 594, one end of the extension pipe 594 is connected to a second liquid pump 595, the liquid inlet end of the second liquid pump 595 is connected to an annular cooling pipe 596, and the outer side of the second liquid pump 595 is connected to an addition pipe 597.

[0030] The heat insulation shell 591 is fitted on the outside of the sampling cylinder 51, and the bottom of the heat insulation shell 591 is fixedly connected to the outer wall of the sealing sleeve 54. The annular sealing gasket 592 is fitted on the outside of the sampling cylinder 51 and fixedly connected to the sampling cylinder 51. The spiral heat conduction tube 593 is fitted on the outside of the sampling cylinder 51 and fixedly connected to the sampling cylinder 51. The annular cooling tube 596 is filled with coolant, and the bottom of the annular cooling tube 596 is fixedly connected to the top of the receiving sleeve 1. The outside of the second liquid pump 595 is fixedly connected to the outer wall of the heat insulation shell 591 through a bracket.

[0031] In use, the extracted wastewater enters the sampling cylinder 51 from the diversion cylinder 55. The wastewater passes through the micro turbine 585, and the high-speed water flow impacts the turbine blades, causing them to rotate. The micro turbine 585 has a hollow shaft structure with a sealed liquid injection channel at its center. At the same time, the first liquid pump 582 is turned on, and the first liquid pump 582 discharges the inhibitor inside the storage tank 581 into the connecting pipe 583, and then into the drain pipe 584 through the connecting pipe 583. The inhibitor inside the drain pipe 584 pushes out the plug 586 and is injected into the sampling cylinder 51 from the turbine shaft through the sealed liquid injection channel to release the inhibitor and prevent microbial degradation and changes in sample composition. After the inhibitor is stopped being added, the return spring 587 pulls the plug 586 back by the rebound force, so that the drain pipe 584 is in a closed state, preventing the sample from entering the drain pipe.

[0032] For samples requiring cryopreservation, the second pump 595 is turned on. The second pump 595 delivers the coolant inside the annular cooling tube 596 to the spiral heat-conducting tube 593. Through the heat exchange between the spiral heat-conducting tube and the outer wall of the sampling tube, the samples inside the sampling tube are cryopreserved.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. All equivalent substitutions or modifications made based on the inventive concept should fall within the scope of protection of the present invention.

Claims

1. A wastewater pollutant anti-clogging detection and sampling device, characterized in that, include: Storage sleeve (1), the inner wall of the storage sleeve (1) is fixedly connected to a fixing plate (2) near the top, the top of the fixing plate (2) is fixedly connected to a hanging bracket (3), and the inner wall of the storage sleeve (1) is provided with a limiting groove (4). Sampling device (5), the outer side of the sampling device (5) is fixedly connected to the inner wall of the limiting groove (4); The limiting groove (4) is provided in multiple sets, and the multiple sets of the limiting groove (4) are evenly distributed inside the receiving sleeve (1); The sampling device (5) includes: A sampling cylinder (51) has a threaded sleeve (52) threadedly connected to the inner wall of the sampling cylinder (51) near the top. The top of the threaded sleeve (52) is connected to a sampling pump (53). A sealing sleeve (54) is fixedly connected to the bottom of the sampling cylinder (51). A flow divider (55) is connected to the bottom of the sealing sleeve (54). A sampling tube (56) is connected to the bottom of the flow divider (55). A filter screen (57) is fitted and fixedly connected to the bottom of the sampling tube (56). A pretreatment device (58) is fixedly connected at its bottom to the outer wall of the diverter (55). Temperature control device (59) is sleeved and fixed on the outside of sampling cylinder (51).

2. The wastewater pollutant anti-clogging detection and sampling device according to claim 1, characterized in that: The top and bottom of the sampling cylinder (51) are both open. Multiple sets of sampling tubes (56) are provided. The multiple sets of sampling tubes (56) are evenly distributed at the bottom of the diverter cylinder (55), and the sampling tubes (56) are set as elastic structures.

3. The wastewater pollutant anti-clogging detection and sampling device according to claim 1, characterized in that: The sampling device (5) also includes a folding plate (510), which is provided in multiple sets. The multiple sets of folding plates (510) are fixedly connected to each other by elastic rubber pads (511). The top of the folding plate (510) is rotatably connected to a positioning plate (513) through a rotating bracket (512). A sliding plate (514) is fixedly connected to one side of the positioning plate (513). An electric slider inside an electric slide rail (515) is fixedly connected to the side of the sliding plate (514) away from the positioning plate (513). An arc spring (516) is fixedly connected to one side of the positioning plate (513).

4. The wastewater pollutant anti-clogging detection and sampling device according to claim 3, characterized in that: The outer side of the electric slide rail (515) is fixedly connected to the inner wall of the limiting groove (4), the end of the arc spring (516) away from the positioning plate (513) is fixedly connected to one side of the folding plate (510), and the inner wall of the elastic rubber pad (511) is fixedly connected to the outer wall of the sampling tube (56) through the bracket.

5. The wastewater pollutant anti-clogging detection and sampling device according to claim 1, characterized in that: The pretreatment device (58) includes a storage tank (581), the top of which is connected to a first pump (582), the outlet of which is connected to a connecting pipe (583), the end of which is away from the first pump (582) is connected to a drain pipe (584), and a micro turbine (585) is sleeved on the outside of the drain pipe (584) and rotatably connected to it via a bearing.

6. The wastewater pollutant anti-clogging detection and sampling device according to claim 5, characterized in that: The liquid storage tank (581) is sleeved on the outside of the diverter (55) and fixedly connected to the outer wall of the diverter (55). The outside of the drain pipe (584) is fixedly connected to the inner wall of the sampling cylinder (51) through a bracket. The connecting pipe (583) penetrates the side wall of the diverter (55) and extends into the interior of the diverter (55), and is fixedly connected to the side wall of the diverter (55).

7. The wastewater pollutant anti-clogging detection and sampling device according to claim 5, characterized in that: The pretreatment device (58) also includes a plug (586), on the outside of which a return spring (587) is fixedly connected by a bracket. The end of the return spring (587) away from the plug (586) is fixedly connected to the outside of the drain pipe (584). The bottom of the plug (586) extends into the inside of the drain pipe (584) and slides in connection with the inner wall of the drain pipe (584).

8. The wastewater pollutant anti-clogging detection and sampling device according to claim 1, characterized in that: The temperature control device (59) includes an insulation shell (591), an annular sealing gasket (592) is fixedly connected to the top of the insulation shell (591), a spiral heat-conducting pipe (593) is fixedly connected to the inner wall of the insulation shell (591), one end of the spiral heat-conducting pipe (593) is connected to an extension pipe (594), one end of the extension pipe (594) is connected to a second liquid pump (595), the liquid inlet end of the second liquid pump (595) is connected to an annular cooling pipe (596), and the outer side of the second liquid pump (595) is connected to an addition pipe (597).

9. The wastewater pollutant anti-clogging detection and sampling device according to claim 8, characterized in that: The heat insulation shell (591) is fitted on the outside of the sampling cylinder (51). The bottom of the heat insulation shell (591) is fixedly connected to the outer wall of the sealing sleeve (54). The annular sealing gasket (592) is fitted on the outside of the sampling cylinder (51) and fixedly connected to the sampling cylinder (51). The spiral heat conduction tube (593) is fitted on the outside of the sampling cylinder (51) and fixedly connected to the sampling cylinder (51). The annular cooling tube (596) is filled with coolant. The bottom of the annular cooling tube (596) is fixedly connected to the top of the receiving sleeve (1). The outside of the second liquid pump (595) is fixedly connected to the outer wall of the heat insulation shell (591) through a bracket.

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