An anti-interference automatic sampling device for sedimentation tank

Abstract

The present invention discloses an anti-interference automatic sampling device for sedimentation tanks, which includes a monitoring module, a sampling module, a fixing module, a sample storage module and a control module; the monitoring module is used for monitoring and warning; the sampling module includes a water distributor, a filter, a main sampling pipeline and a cover plate, the filter is located inside the water distributor, the main sampling pipeline is located at the center of the water distributor, and the cover plate is located above the water distributor; the fixing module is used for fixedly installing the entire device body; the sample storage module includes a sample cabinet and a sampling mechanism arranged inside the sample cabinet, the sample cabinet is connected to the bottom of the main sampling pipeline through a sampling branch pipeline, and the bottom of the main sampling pipeline is also connected to a shunt pipeline; the control module is used for controlling the monitoring module, the sampling mechanism and the solenoid valves on each pipeline. The present invention can sample and store wastewater regularly and quantitatively, has a high level of automation and strong anti-interference ability, and can effectively curb environmental illegal acts against wastewater discharge outlets.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater quality monitoring, and specifically relates to an anti-interference automatic sampling device for a sedimentation tank. Background Art

[0002] With the rapid development of my country's economy and society, the production level of industry and agriculture has been continuously improved. As the basis of various economic activities, the environmental protection industry has also been rapidly changing. While promoting the continuous adjustment and upgrading of my country's industrial structure, it has also put forward new and higher requirements for the environmental protection industry. For production and discharge enterprises, they must assume the main responsibility for pollution prevention and control, take the initiative to reduce emissions, take the initiative to control, and put an end to fraud; for the regulatory department, they must enforce the law impartially, with evidence and reason.

[0003] For regulatory authorities, accurate and efficient wastewater quality monitoring depends on reliable automatic sampling devices and testing equipment. However, few devices can meet the above requirements, and there is an urgent need to develop an efficient and highly anti-interference wastewater automatic sampling device. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art, solve the problem that environmental violations at wastewater discharge outlets are difficult to discover and punish, and provide an anti-interference automatic sampling device for a sedimentation tank.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an anti-interference automatic sampling device for a sedimentation tank, which includes a monitoring module, a sampling module, a fixing module, a sample storage module and a control module; the monitoring module is used for monitoring and warning; the sampling module includes a water divider, a filter, a sampling main pipeline and a cover plate, the filter is located inside the water divider, the sampling main pipeline is located at the center of the water divider, and the cover plate is located above the water divider; the fixing module is used to fix and install the entire device body; the sample storage module includes a sample cabinet and a sampling mechanism arranged inside the sample cabinet, the sample cabinet is connected to the bottom of the sampling main pipeline through a sampling branch pipeline, a sampling solenoid valve is arranged on the sampling branch pipeline, and the bottom of the sampling main pipeline is also connected to a shunt pipeline, a shunt solenoid valve is arranged on the shunt pipeline, and the sampling main pipeline, the sampling branch pipeline and the shunt pipeline form an inverted Y-shaped structure; the control module is used to control the monitoring module, the sampling mechanism and the solenoid valves on each pipeline.

[0006] Furthermore, the monitoring module is fixed at the center of the cover plate, and the monitoring module includes a warning light and a monitoring probe, and the monitoring probe is fixed above the warning light. The warning light is in a long flashing mode, and the monitoring probe is a pair of ultra-wide-angle cameras, which can achieve 24-hour uninterrupted monitoring, and the monitoring angle is 0~360 degrees.

[0007] Furthermore, the water separator has an open top and a hollow interior. Each side of its perimeter is triangular and serrated. At the same time, the inner wall of the water separator is also provided with water diversion lines that bulge upward, diverging from the center to the surrounding in a radial shape. This can prevent the generation of foam due to the influence of height difference when wastewater enters the water separator, thereby affecting the quality of the sampled water; the cover plate has the same shape as the water separator, covering the top of the water separator, with a covering area larger than that of the water separator, to prevent human interference in the sampling process of the device.

[0008] Furthermore, the filter includes a horizontal skirt and a vertical filter screen. The skirt fixes the filter to the inner wall of the water separator, and the filter screen is used to filter particulate suspended matter in the wastewater. The filtering range of the filter screen is 0.1 to 200 millimeters.

[0009] Furthermore, the fixing module is composed of an A-shaped support arm and a backing plate. One end of the A-shaped support arm is connected to the main sampling pipeline, and the backing plate is provided at the other end, and the backing plate is used to be fixed on the inner wall of the overflow weir of the sedimentation tank.

[0010] Furthermore, the sampling mechanism includes a sampling tray, sample bottles, and a rotating motor. The bottom of the sampling tray is rotatably installed on the base, and the sample bottles are evenly distributed around the upper part of the sampling tray. The rotating motor drives the sampling tray and the sample bottles to rotate through a stepping chain.

[0011] Furthermore, a cabinet door is provided on the sample cabinet, and a lock is provided on the cabinet door. At the same time, the cabinet door is linked with the monitoring module. When the cabinet door is opened abnormally, the monitoring module will automatically alarm.

[0012] Furthermore, a sampling flap is provided at the connection of the sampling branch pipeline and the main sampling pipeline. The sampling flap is controlled by a sampling motor to rotate. A diversion flap is provided at the connection of the diversion pipeline and the main sampling pipeline. The diversion flap is controlled by a diversion motor to rotate. The sampling motor and the diversion motor are coaxially opposite and are located on both sides of the Y-shaped bifurcation of the main sampling pipeline.

[0013] Furthermore, the sampling flap is semicircular and is embedded in the main sampling pipeline. The diversion flap is also semicircular and is embedded in the main sampling pipeline; the rotation angles of the sampling flap and the diversion flap are 0 to 270 degrees, and the included angle between the sampling flap and the diversion flap during operation is ≥90 degrees.

[0014] Furthermore, the outlet of the sampling branch pipeline is conical and is located directly above the mouth of one of the sample bottles, and the distance between it and the mouth of the sample bottle is 1 to 10 millimeters.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The anti-interference automatic sampling device for sedimentation tanks of the present invention can sample and store wastewater regularly and quantitatively, with a high level of automation and strong anti-interference ability.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the anti-interference automatic sampling device for the sedimentation tank in Embodiment 1.

[0019] Figure 2 It is a schematic diagram of the structures of the monitoring module and the sampling module of the anti-interference automatic sampling device for the sedimentation tank.

[0020] Figure 3 It is a schematic diagram of the structure of the fixing module of the anti-interference automatic sampling device for the sedimentation tank.

[0021] Figure 4 It is a schematic diagram of the structures of the sampling module, the sample storage module, and the control module of the anti-interference automatic sampling device for the sedimentation tank.

[0022] Figure 5 It is a schematic exploded view of the structure of the sampling module of the anti-interference automatic sampling device for the sedimentation tank.

[0023] Figure 6 It is a partially enlarged schematic diagram of the filter of the anti-interference automatic sampling device for the sedimentation tank.

[0024] Figure 7 It is a schematic diagram of the structure of the sampling module of the anti-interference automatic sampling device for the sedimentation tank in Embodiment 2.

[0025] The labels in the figure are: 1 - monitoring module, 2 - sampling module, 3 - fixing module, 4 - sample storage module, 5 - control module, 6 - warning light, 7 - monitoring probe, 8 - water distributor, 9 - filter, 10 - main sampling pipeline, 11 - cover plate, 12 - A-shaped support arm, 13 - backing plate, 14 - sample cabinet, 15 - cabinet door, 16 - sampling tray, 17 - sample bottle, 18 - rotating motor, 19 - lock, 20 - base, 21 - stepping chain, 22 - sampling sub-pipeline, 23 - sampling solenoid valve, 24 - shunt pipeline, 25 - shunt solenoid valve, 26 - sampling flap, 27 - sampling motor, 28 - shunt flap, 29 - shunt motor, 30 - water dividing line, 31 - skirt edge, 32 - filter mesh. Detailed Embodiments

[0026] The present invention will be described in detail below with reference to the drawings and specific embodiments. Embodiment 1

[0027] As Figure 1As shown in the figure, an anti-interference automatic sampling device for sedimentation tanks includes a monitoring module 1, a sampling module 2, a fixing module 3, a sample storage module 4, and a control module 5. The monitoring module 1, sampling module 2, fixing module 3, and sample storage module 4 are arranged in a top-down order. The fixing module 3 fixes the device body to the inner wall of the overflow weir of the sedimentation tank, and the control module 5 controls the autonomous operation of the device body.

[0028] As Figure 2 shown in the figure, the monitoring module 1 includes a warning light 6 and a monitoring probe 7. The monitoring probe 7 is fixed above the warning light 6. The sampling module 2 is composed of a water distributor 8, a filter 9, a sampling main pipe 10, and a cover plate 11. The filter 9 is located inside the water distributor 8. The sampling main pipe 10 is located at the center of the water distributor 8. The cover plate 11 is located above the water distributor 8. The monitoring module 1 is fixed at the center of the cover plate 11.

[0029] As Figure 3 shown in the figure, the fixing module 3 is composed of an A-shaped arm 12 and a backing plate 13. One end of the A-shaped arm 12 is connected to the sampling main pipe 10, and the backing plate 13 is fixed to the inner wall of the overflow weir of the sedimentation tank.

[0030] As Figure 4 shown in the figure, the sample storage module 4 includes a sample cabinet 14, a cabinet door 15, a sampling tray 16, sample bottles 17, and a rotating motor 18. A lock 19 is provided on the cabinet door 15. The sample bottles 17 are fixed on the sampling tray 16. The sampling tray 16 is fixed inside the sample cabinet 14 through a base 20. The rotating motor 18 drives the sampling tray 16 and the sample bottles 17 to rotate through a stepping chain 21. Specifically, a driven gear ring can be set at the bottom of the sampling tray 16, and the driven gear ring meshes with a driving gear. The driving gear is driven by the rotating motor 18 and the stepping chain 21. The sample cabinet 14 is connected to the bottom of the sampling main pipe 10 through a sampling branch pipe 22. A sampling solenoid valve 23 is provided on the sampling branch pipe 22. A diversion pipe 24 is also connected to the bottom of the sampling main pipe 10. The water outlet of the diversion pipe 24 is communicated with the water outlet of the sedimentation tank. A diversion solenoid valve 25 is provided on the diversion pipe 24. The sampling branch pipe 22 is opposite to the diversion pipe 24 and forms an inverted Y-shaped structure with the sampling main pipe 10. A sampling flap 26 is also provided between the sampling branch pipe 22 and the sampling main pipe 10. The sampling flap 26 is controlled to rotate by a sampling motor 27. A diversion flap 28 is also provided between the diversion pipe 24 and the sampling main pipe 10. The diversion flap 28 is controlled to rotate by a diversion motor 29. The sampling motor 27 and the diversion motor 29 are coaxial and opposite, and are located on both sides of the Y-shaped bifurcation of the sampling main pipe 10. The control module 5 is arranged on the cabinet door 15.

[0031] Specifically, the warning light 6 is in a long flashing mode, and the monitoring probe 7 is a pair of ultra-wide-angle cameras, which can achieve continuous 24-hour monitoring with a monitoring angle of 0 to 360 degrees.

[0032] Specifically, as Figure 5 shown, the water divider 8 is in the shape of an inverted and truncated equilateral triangular pyramid, with a hollow interior and triangular serrations on its three sides, so that the wastewater in the sedimentation tank can enter the interior of the water divider 8 by means of overflow; the shape of the cover plate 11 is the same as that of the water divider, being an upright and truncated equilateral triangular pyramid, with a covering area larger than that of the water divider to prevent human interference in the device sampling process.

[0033] Specifically, the inner wall of the water divider is also provided with a water dividing line 30 that protrudes upward, diverging from the center to the periphery in a ray shape, preventing the generation of foam due to the influence of height difference when the wastewater enters the water divider 8, thereby affecting the quality of the sampled water sample.

[0034] Specifically, as Figure 6 shown, the filter 9 has the same shape as the water divider 8, including a horizontal skirt 31 and a vertical filter screen 32. The skirt 31 fixes the filter 9 to the inner wall of the water divider 8, and the filter screen 32 can filter out particulate suspended matter in the wastewater, with a filtering size of 50 millimeters for the filter screen.

[0035] Specifically, after the device is installed, the monitoring module 1, the sampling module 2, and the fixing module 3 are located inside the sedimentation tank, while the sample storage module 4 and the control module 5 are located outside the sedimentation tank. The sampling branch pipe 22 and the shunt pipe 24 introduce the wastewater in the water divider 8 into the sampling bottle located outside the tank and discharge it outside the tank respectively.

[0036] Specifically, the cabinet door 15 is linked with the monitoring module 1. When the cabinet door 15 is opened abnormally, the monitoring module 1 will automatically alarm.

[0037] Specifically, the outlet of the sampling branch pipe is in a conical shape and is directly above the mouth of one of the sample bottles, with a distance of 5 millimeters from the mouth of the sample bottle.

[0038] Specifically, the sampling flap 26 is semicircular and is embedded in the main sampling pipe 10, and the shunt flap 28 is also semicircular and is embedded in the main sampling pipe 10. Among them, the rotation angle of the sampling flap 26 is 0 to 90 degrees, and the angle of the shunt flap 28 is 0 to 180 degrees. When the sampling flap 26 and the shunt flap 28 are working, the included angle between the two is ≥90 degrees.

[0039] The various modules of the anti-interference automatic sampling device for sedimentation tanks according to the present invention operate in the following manner:

[0040] 1. After the device is installed in place and powered on as a whole, the warning light 6 and the monitoring probe 7 start to operate;

[0041] 2. The sampling motor 27 fastens the sampling flap 26, the sampling flap 26 closes horizontally, and the sampling solenoid valve 23 closes;

[0042] 3. The shunt solenoid valve 25 opens, and the shunt motor 29 drives the shunt flap 28 to rotate clockwise by 90 degrees and then fastens it;

[0043] 4. The wastewater in the sedimentation tank overflows into the water distributor 8, and then under the action of gravity, it enters the sampling main pipeline 10 along the inner wall of the water distributor 8 through the filter screen 32. The large-particle suspended substances in the wastewater are intercepted by the filter screen 32 at the skirt 31 of the filter 9, and the foam generated by the flowing wastewater breaks under the action of the water diversion line 30;

[0044] 5. The wastewater entering the sampling main pipeline 10 is all discharged through the shunt pipeline 24 under the guidance of the shunt flap 28 and the shunt solenoid valve 25;

[0045] 6. When the sampling time point is reached, the control module 5 controls the sampling solenoid valve 23 to open, the sampling motor 27 drives the sampling flap 26 to rotate clockwise by 10 degrees, a certain amount of suspended-substance-free wastewater in the sampling main pipeline 10 enters the sampler bottle 17 in the sample cabinet 14 through the sampling branch pipeline 22, and a large amount of wastewater in the sampling main pipeline 10 is discharged through the shunt pipeline 24;

[0046] 7. After one sampling is completed, the control module 5 controls the sampling motor 27 to drive the sampling flap 26 to rotate counterclockwise to reset and fasten, the sampling solenoid valve 23 closes, and the rotating motor 18 in the sample cabinet 14 drives the sampling disk 16 to rotate through the stepping chain 21, so that the empty sample bottle 17 is aligned with the water outlet of the sampling branch pipeline 22, waiting for the next sampling window to open;

[0047] 8. When an external force uses unconventional means to open the sample cabinet 14 to replace the sampled sample, the control module 5 will issue an alarm. Embodiment 2

[0048] As Figure 7 shown, the difference between Embodiment 2 and Embodiment 1 is only that: the shapes of the water distributor 8, the filter 9 and the cover plate 11 are square; there is no water diversion line 30 on the inner wall of the water distributor 8.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those of ordinary skill in the art should understand that the above embodiments do not limit the protection scope of the present invention in any form. Any technical solutions obtained by means of equivalent replacement and the like all fall within the protection scope of the present invention.

[0050] The parts not involved in the present invention are the same as or can be implemented by the prior art.

Claims

1. An anti-interference automatic sampling device for sedimentation tanks, characterized in that It includes a monitoring module, a sampling module, a fixing module, a sample storage module and a control module; the monitoring module is used for monitoring and warning; the sampling module includes a water separator, a filter, a main sampling pipeline and a cover plate. The filter is located inside the water separator, the main sampling pipeline is located at the center of the water separator, and the cover plate is located above the water separator; the fixing module is used for fixedly installing the whole device body; the sample storage module includes a sample cabinet and a sampling mechanism arranged inside the sample cabinet. The sample cabinet is connected to the bottom of the main sampling pipeline through a sampling sub-pipeline, and a sampling solenoid valve is arranged on this sampling sub-pipeline. The bottom of the main sampling pipeline is also connected to a shunt pipeline, and a shunt solenoid valve is arranged on this shunt pipeline. The main sampling pipeline, the sampling sub-pipeline and the shunt pipeline form an inverted Y-shaped structure; the control module is used for controlling the monitoring module, the sampling mechanism and the solenoid valves on each pipeline; The top of the water separator is open and its interior is hollow. Each side around it is triangular serrated. At the same time, the inner wall of the water separator is also provided with water separation lines protruding upward, diverging from the center to the periphery, in a radial shape. The cover plate covers the top of the water separator, and the covering area is larger than that of the water separator; The filter includes a horizontal skirt and a vertical filter screen. The skirt fixes the filter on the inner wall of the water separator. The filter screen is used for filtering particulate suspended matter in the wastewater, and the filtering range of the filter screen is 0.1 - 200 millimeters; A sampling flap is arranged at the connection between the sampling sub-pipeline and the main sampling pipeline. The sampling flap is controlled by a sampling motor to rotate. A shunt flap is arranged at the connection between the shunt pipeline and the main sampling pipeline. The shunt flap is controlled by a shunt motor to rotate. The sampling motor and the shunt motor are coaxially opposite and are located on both sides of the Y-shaped bifurcation of the main sampling pipeline; Each module of the automatic sampling device for sedimentation tank operates in the following manner: (1) After the device is installed in place, the whole device is powered on, and the warning lamp and the monitoring probe start to operate; (2) The sampling motor fastens the sampling flap, the sampling flap is horizontally closed, and the sampling solenoid valve is closed; (3) The shunt solenoid valve is opened, and the shunt motor drives the shunt flap to rotate clockwise by 90 degrees and then fastens it; (4) The wastewater in the sedimentation tank overflows into the water separator, and then under the action of gravity, it enters the main sampling pipeline along the inner wall of the water separator through the filter screen. The large particulate suspended matter in the wastewater is intercepted at the skirt of the filter by the filter screen, and the foam generated by the flowing wastewater breaks under the action of the water separation lines; (5) The wastewater entering the main sampling pipeline is all discharged through the shunt pipeline under the guidance of the shunt flap and the shunt solenoid valve; (6) When it reaches the sampling time point, the control module controls the sampling solenoid valve to open, the sampling motor drives the sampling flap to rotate clockwise by 10 degrees, a certain amount of suspended matter-free wastewater in the main sampling pipeline enters the sampler bottle in the sample cabinet through the sampling sub-pipeline, and a large amount of wastewater in the main sampling pipeline is discharged through the shunt pipeline; After one sampling is completed, the control module controls the sampling motor to drive the sampling flap to rotate counterclockwise to reset and fasten, the sampling solenoid valve closes, and the rotating motor in the sample cabinet drives the sampling disc to rotate through the stepping chain, so that the empty sample bottle is aligned with the water outlet of the sampling sub-pipeline, waiting for the next sampling window to open.

2. The automatic sampling device for sedimentation tank anti-interference according to claim 1, characterized in that, The monitoring module is fixed at the center of the cover plate. The monitoring module includes a warning light and a monitoring probe, and the monitoring probe is fixed above the warning light.

3. The automatic sampling device for sedimentation tank resistant to interference according to claim 1, wherein, The fixing module is composed of an A-shaped arm and a backing plate. One end of the A-shaped arm is connected to the main sampling pipeline, and the backing plate is arranged at the other end, and the backing plate is used to be fixed on the inner wall of the overflow weir of the sedimentation tank.

4. The automatic sampling device for sedimentation tank anti-interference according to claim 1, wherein, The sampling mechanism includes a sampling disc, a sample bottle and a rotating motor. The bottom of the sampling disc is rotatably installed on the base, and the sample bottles are evenly distributed around the upper part of the sampling disc. The rotating motor drives the sampling disc and the sample bottles to rotate through the stepping chain.

5. The automatic sampling device for sedimentation tank anti-interference according to claim 1, wherein, A cabinet door is arranged on the sample cabinet, and a lock is arranged on the cabinet door. At the same time, the cabinet door is linked with the monitoring module. When the cabinet door is opened abnormally, the monitoring module will automatically alarm.

6. The automatic sampling device for sedimentation tank resistant to interference according to claim 1, characterized in that, The sampling flap is semicircular and is embedded in the main sampling pipeline. The flow splitting flap is also semicircular and is embedded in the main sampling pipeline. The rotation angles of the sampling flap and the flow splitting flap are 0 to 270 degrees, and the included angle between the sampling flap and the flow splitting flap is ≥90 degrees during operation.

7. An anti-interference automatic sampling device for a sedimentation tank according to claim 1, characterized in that, The outlet of the sampling sub-pipeline is conical and is located directly above the mouth of one of the sample bottles, and the distance between it and the mouth of the sample bottle is 1 to 10 millimeters.

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