Multi-station free adjustment type sewage time-sharing sampling equipment and use method

Abstract

The multi-station free adjustment type sewage time-sharing sampling equipment comprises a supporting frame, the supporting frame is provided with a supporting hole and symmetrically-arranged connecting frames, a supporting rod structure matched with the supporting hole is arranged in the supporting hole, and the symmetrically-arranged connecting frames are provided with sampling structures and sample storage structures. The bottom of the supporting frame is connected with the sampling structure through a traction pipe. By adopting the structure, the equipment is small in size, and a mechanical device is simple and easy to maintain, so that the equipment is suitable for being used in various environments including narrow spaces; water is not stored in a pipeline of the equipment, the equipment has a pipeline flushing function, and a water inlet can stably stay in a preset water layer, so that the accuracy of a collected water sample and the accuracy of water quality detection and analysis are ensured; the equipment design ensures that no water is stored in the pipeline, the pipeline flushing function is achieved, and the water inlet can stably stay in the preset water layer, so that sample pollution is avoided, and the sampling accuracy is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage sampling, and in particular relates to a multi-station freely adjustable sewage time-sharing sampling device and a use method thereof. Background Art

[0002] With the development of intelligent monitoring of urban drainage pipelines and integrated management of “factory, network, river, lake and shore”, managers have an increasingly urgent need to understand the temporal and spatial changes in water quality. There is an urgent need for sampling equipment that is as flexible as manual sampling and as intelligent as automatic sampling to meet diverse sampling demands.

[0003] The water quality of the drainage network has temporal differences. The concentration of indicators such as COD at the sewage outlet varies to varying degrees at different times such as morning, noon, evening and late at night. In order to ensure that the water quality analysis of the upstream and downstream pipe networks is representative, the sampling plan requires staff to take samples from the monitoring points multiple times throughout the day, and the time of daily sampling should also be consistent. This requires staff to go back and forth to the same sampling point multiple times a day, which undoubtedly poses a great challenge to the efficiency and quality of manual sampling. The safety risks of staff will also increase exponentially when sampling in harsh environments.

[0004] Most of the existing automatic water sampling equipment is used in water quality monitoring stations. Due to the large size of the equipment and the need for supporting power supply facilities and dedicated machine rooms, the coverage of the equipment is limited and it cannot be used in municipal inspection wells that are small and cannot be powered. The existing new small sampling equipment can only collect one bottle of water sample and cannot meet the demand for sampling in multiple bottles at multiple time periods. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a multi-station freely adjustable sewage time-sharing sampling device and a method of use. The device is small in size, and the mechanical device is simple and easy to maintain, making it suitable for use in various environments, including narrow spaces; the device does not store water in the pipeline and has a pipeline flushing function, and the water inlet can stay stably in the preset water layer, thereby ensuring the accuracy of water sample collection and the accuracy of water quality detection and analysis; the equipment design ensures that there is no water in the pipeline, has a pipeline flushing function, and the water inlet can stay stably in the preset water layer, which helps to avoid sample contamination and ensure the accuracy of sampling.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a multi-station freely adjustable sewage time-sharing sampling equipment, including a support frame, the support frame is provided with a support hole and a symmetrically arranged connecting frame, the support hole is provided with a supporting rod structure matching therewith, the symmetrically arranged connecting frame is provided with a sampling structure and a sample storage structure, and the bottom of the support frame is connected to the sampling structure through a traction tube. In a preferred embodiment, the sampling structure includes a sampling box arranged on a connecting frame, the sampling box is provided with a display screen, control keys, an inner cavity and a movable cover, a control module and a power module are provided in the sampling box, a charging port, a power switch, a control panel switch, and multiple groups of water outlets are provided on the side of the sampling box, a water distribution device is provided in the inner cavity, a water inlet pipe, a water abandonment pipe and multiple groups of sampling tubes are provided on the water distribution device, the water inlet pipe, the water abandonment pipe and the multiple groups of sampling tubes are all connected to the water outlet through a first water supply pipe, and the water abandonment pipe and the multiple groups of sampling tubes are provided with a first solenoid valve.

[0007] In a preferred embodiment, the sample storage structure includes a sample storage box arranged on a connecting frame, the sample storage box is provided with a top cover, a positioning seat is provided inside the sample storage box, a plurality of positioning grooves are provided on the positioning seat, a sample bottle is provided in the positioning groove, the sample bottle is connected to one end of the second water supply pipe, and the other end of the second water supply pipe passes through the top cover and is connected to the water outlet.

[0008] In a preferred embodiment, the sampling structure includes a sampler, a sampling end of the sampler is provided with a diversion slope and a sampling groove, a sampling port and a filter residue structure are provided in the sampling groove, a sampling pump, a snorkeling structure and a sample guide tube are provided on the sampler, the sample guide tube is connected to the water outlet connected to the water inlet pipe through a sample delivery tube, and a shielding arc plate is provided at the front end of the sampling groove at a position corresponding to the sampling port.

[0009] In a preferred embodiment, the sampling port is provided with a filter screen.

[0010] In a preferred embodiment, the filter residue structure includes a rotating shaft symmetrically arranged in the sampling trough, on which are provided a plurality of groups of scraping tooth plates, which are gap-matched with the scraping tooth plates arranged on the side of the sampling trough, and the scraping tooth plates on adjacent rotating shafts are gap-matched.

[0011] In a preferred embodiment, the snorkeling structure includes an airbag structure symmetrically arranged on both sides of the sampler, an exhaust pipe is provided at one end of the airbag structure, a third solenoid valve is provided on the exhaust pipe, the other end of the exhaust pipe is connected to the compressed gas tank through an air supply pipe, a second solenoid valve is provided on the air supply pipe, and the compressed gas tank is connected to the sampler through a fixed seat.

[0012] In a preferred solution, the support rod structure includes an adjustment sleeve, both ends of the adjustment sleeve are threadedly connected with adjustment screws, an end of the adjustment screw away from the adjustment sleeve is provided with an anti-skid pad, and the adjustment sleeve is provided with multiple groups of anti-skid patterns.

[0013] In a preferred solution, the traction tube and the sample delivery tube are both spiral hoses.

[0014] The present invention can achieve the following beneficial effects: (1) The device is small in size, simple in mechanical design and easy to maintain, making it suitable for use in a variety of environments, including confined spaces; (2) There is no water in the pipeline of the equipment and it has the function of pipeline flushing. The water inlet can stay stably in the preset water layer, thereby ensuring the accuracy of water sample collection and the accuracy of water quality detection and analysis; (3) The equipment design ensures that there is no water in the pipeline, has the function of pipeline flushing, and the water inlet can stay stably in the preset water layer, which helps to avoid sample contamination and ensure the accuracy of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the device of the present invention; Figure 2 It is a schematic diagram of the support frame and sampling structure of the present invention; Figure 3 It is a schematic diagram of the support rod structure of the present invention; Figure 4 It is a schematic diagram of the sampling structure of the present invention; Figure 5 It is a schematic diagram of the sample storage structure of the present invention; Figure 6 It is a schematic diagram of the sampling structure of the present invention; Figure 7 It is a schematic diagram of the sample storage structure of the present invention; Figure 8 It is a schematic diagram of the filter residue structure of the present invention; Fig. 9 It is a schematic diagram of the sampling structure of the present invention; In the figure: support frame 1, sampling structure 2, sample storage structure 3, traction tube 4, sampling structure 5, sample delivery tube 6, support rod structure 7, connecting frame 8, support hole 9, adjustment sleeve 10, adjustment screw 11, anti-skid pad 12, anti-skid pattern 13, sampling box 14, display screen 15, control key 16, inner cavity 17, movable cover 18, water distribution device 19, water inlet pipe 20, water abandonment pipe 21, sampling tube 22, first solenoid valve 23, first water delivery pipe 24, water outlet 25, sample storage box 26, positioning seat 27, Positioning groove 28, positioning groove 28, sample bottle 29, top cover 30, second water supply pipe 31, sampler 32, diversion slope 33, sampling groove 34, shielding arc plate 35, sampling port 36, filter screen 37, rotating shaft 38, material stripping tooth plate 39, scraping tooth plate 40, sampling pump 41, air bag structure 42, fixing seat 43, compressed gas tank 44, air supply pipe 45, second solenoid valve 46, exhaust pipe 47, third solenoid valve 48, sample guide tube 49, charging port 50, power switch 51, control panel switch 52. DETAILED DESCRIPTION

[0016] Embodiment 1: like Figure 1-9In the invention, a multi-station freely adjustable sewage time-sharing sampling device comprises a support frame 1, on which a support hole 9 and a symmetrically arranged connecting frame 8 are arranged, in which a supporting rod structure 7 cooperating therewith is arranged, on the symmetrically arranged connecting frame 8 there are arranged a sampling structure 2 and a sample storage structure 3, and the bottom of the support frame 1 is connected to the sampling structure 5 via a traction tube 4. In the preferred solution, the sampling structure 2 includes a sampling box 14 arranged on the connecting frame 8, the sampling box 14 is provided with a display screen 15, a control key 16, an inner cavity 17 and a movable cover 18, a control module and a power module are arranged in the sampling box 14, a charging port 50, a power switch 51, a control panel switch 52, and multiple groups of water outlets 25 are arranged on the side of the sampling box 14, a water distribution device 19 is arranged in the inner cavity 17, and the water distribution device 18 is provided with a water inlet pipe 20, a water abandonment pipe 21 and multiple groups of sampling pipes 22, the water inlet pipe 20, the water abandonment pipe 21 and the multiple groups of sampling pipes 22 are all connected to the water outlet 25 through the first water supply pipe 24, and the water abandonment pipe 21 and the multiple groups of sampling pipes 22 are provided with a first electromagnetic valve 23. Flexible operation, accurate sample collection.

[0017] In a preferred solution, the sample storage structure 3 comprises a sample storage box 26 arranged on the connecting frame 8, the sample storage box 26 is provided with a top cover 30, a positioning seat 27 is provided in the sample storage box 26, a plurality of positioning grooves 28 are provided on the positioning seat 27, a sample bottle 29 is provided in the positioning groove 28, the sample bottle 29 is connected to one end of the second water delivery pipe 31, and the other end of the second water delivery pipe 31 passes through the top cover 30 and is connected to the water outlet 25. It is flexible to replace, stable to store, and easy to operate.

[0018] In the preferred solution, the sampling structure 5 includes a sampler 32, the sampling end of the sampler 32 is provided with a diversion slope 33 and a sampling slot 34, the sampling slot 34 is provided with a sampling port 36 and a filter residue structure, the sampler 32 is provided with a sampling pump 41, a buoyancy structure and a sample guide tube 49, the sample guide tube 49 is connected to the water outlet 25 connected to the water inlet pipe 21 through a sample delivery tube 6, and a shielding arc plate 35 is provided at the front end of the sampling slot 34 corresponding to the sampling port 36. The buoyancy depth can be adjusted up and down, the sampling is convenient, and the resistance to impurities is strong.

[0019] In a preferred embodiment, the sampling port 36 is provided with a filter screen 37 to filter impurities and prevent them from being drawn into the pump structure.

[0020] In the preferred solution, the filter residue structure includes a rotating shaft 38 symmetrically arranged in the sampling slot 34, and a plurality of groups of scraping tooth plates 39 are arranged on the rotating shaft 38. The plurality of groups of scraping tooth plates 39 are gap-matched with the scraping tooth plates 40 arranged on the side of the sampling slot 34, and the scraping tooth plates 39 on adjacent rotating shafts 38 are gap-matched. Waste paper and large impurities are filtered and continuously stripped and cleaned.

[0021] In a preferred solution, the snorkeling structure includes an airbag structure 42 symmetrically arranged on both sides of the sampler 32, an exhaust pipe 47 is provided at one end of the airbag structure 42, a third electromagnetic valve 48 is provided on the exhaust pipe 47, the other end of the exhaust pipe 47 is connected to a compressed gas tank 44 through an air supply pipe 45, a second electromagnetic valve 46 is provided on the air supply pipe 45, and the compressed gas tank 44 is connected to the sampler 32 through a fixing seat 43. The depth can be flexibly adjusted, and the adaptability is strong.

[0022] In a preferred solution, the support rod structure 7 includes an adjustment sleeve 10, both ends of which are threadedly connected with an adjustment screw 11, an end of the adjustment screw 11 away from the adjustment sleeve 10 is provided with an anti-skid pad 12, and the adjustment sleeve 10 is provided with multiple groups of anti-skid patterns 13. It is suitable for hanging without a cover or installing tightly inside with a cover when sampling sewage wells.

[0023] In the preferred solution, the traction tube 4 and the sample delivery tube 6 are both spiral hoses, which are telescopic and highly practical.

[0024] Embodiment 2: like Figure 1-9 In the present invention, the method of use is: Step 1: According to the actual site conditions, the support rod structure 7 is extended to the maximum and hung on the wellhead or pressed against the well wall in both directions, and the power switch 51 and the control panel switch 52 are turned on; Step 2: Control the second solenoid valve 46 and the third solenoid valve 48 to control the amount of air in the airbag structure 42, thereby controlling the depth of the sampling structure 5 in the sewage; Step 3: Control the sampling time period, sampling volume and corresponding inventory selection through the control unit 16; Step 4: The sewage is pumped out by the sampling pump 41 through the sampling port 36, and input into the water distribution device 19 through the sample delivery tube 6, and then selected to input the sample water into the corresponding sample bottle 29 or to be discharged through the waste water pipe 21 by relying on the first solenoid valve 23 at different positions; Step 5: After the sampling cycle is over, the device can be directly taken out or the sample bottle 29 can be replaced to start the next round of time-sharing sampling.

[0025] The beneficial effects of the present invention are as follows: the device is small in size, and the mechanical device is simple and easy to maintain, making it suitable for use in various environments, including narrow spaces; the device does not store water in the pipeline and has a pipeline flushing function, and the water inlet can stay stably in the preset water layer, thereby ensuring the accuracy of water sample collection and the accuracy of water quality detection and analysis; the device design ensures that there is no water in the pipeline, has a pipeline flushing function, and the water inlet can stay stably in the preset water layer, which helps to avoid sample contamination and ensure the accuracy of sampling.

[0026] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A multi-station freely adjustable sewage time-sharing sampling device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a support hole (9) and a symmetrically arranged connecting frame (8); a supporting rod structure (7) cooperating therewith is arranged in the support hole (9); a sampling structure (2) and a sample storage structure (3) are arranged on the symmetrically arranged connecting frame (8); and the bottom of the support frame (1) is connected to the sampling structure (5) via a traction tube (4).

2. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 1 is characterized in that: The sampling structure (2) comprises a sampling box (14) arranged on a connecting frame (8); the sampling box (14) is provided with a display screen (15), a control key (16), an inner cavity (17) and a movable cover (18); a control module and a power module are provided in the sampling box (14); a charging port (50), a power switch (51), a control panel switch (52) and a plurality of water outlets (25) are provided on the side of the sampling box (14); a water distribution device (19) is provided in the inner cavity (17); a water inlet pipe (20), a water discarding pipe (21) and a plurality of sampling pipes (22) are provided on the water distribution device (18); the water inlet pipe (20), the water discarding pipe (21) and the plurality of sampling pipes (22) are all connected to the water outlet (25) via a first water supply pipe (24); and a first solenoid valve (23) is provided on the water discarding pipe (21) and the plurality of sampling pipes (22).

3. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 1 is characterized in that: The sample storage structure (3) comprises a sample storage box (26) arranged on the connecting frame (8), the sample storage box (26) is provided with a top cover (30), a positioning seat (27) is provided in the sample storage box (26), a plurality of positioning grooves (28) are provided in the positioning seat (27), a sample bottle (29) is provided in the positioning groove (28), the sample bottle (29) is connected to one end of the second water supply pipe (31), and the other end of the second water supply pipe (31) passes through the top cover (30) and is connected to the water outlet (25).

4. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 1 is characterized in that: The sampling structure (5) comprises a sampler (32), a sampling end of the sampler (32) being provided with a diversion slope (33) and a sampling groove (34), a sampling port (36) and a filter residue structure being provided in the sampling groove (34), a sampling pump (41), a buoyancy structure and a sample guide tube (49) being provided on the sampler (32), the sample guide tube (49) being connected to a water outlet (25) connected to a water inlet pipe (21) via a sample delivery tube (6), and a shielding arc plate (35) being provided at a position corresponding to the sampling port (36) at the front end of the sampling groove (34).

5. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 4 is characterized in that: The sampling port (36) is provided with a filter screen (37).

6. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 4 is characterized in that: The filter residue structure comprises a rotating shaft (38) symmetrically arranged in the sampling groove (34), and a plurality of groups of scraping tooth plates (39) are arranged on the rotating shaft (38). The plurality of groups of scraping tooth plates (39) are clearance-matched with the scraping tooth plates (40) arranged on the side of the sampling groove (34), and the scraping tooth plates (39) on adjacent rotating shafts (38) are clearance-matched.

7. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 4 is characterized by: The snorkeling structure comprises an air bag structure (42) symmetrically arranged on both sides of the sampler (32); an exhaust pipe (47) is provided at one end of the air bag structure (42); a third solenoid valve (48) is provided on the exhaust pipe (47); the other end of the exhaust pipe (47) is connected to a compressed air tank (44) via an air supply pipe (45); a second solenoid valve (46) is provided on the air supply pipe (45); and the compressed air tank (44) is connected to the sampler (32) via a fixing seat (43).

8. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 1 is characterized by: The support rod structure (7) comprises an adjustment sleeve (10), both ends of the adjustment sleeve (10) are threadedly connected to an adjustment screw (11), an end of the adjustment screw (11) away from the adjustment sleeve (10) is provided with an anti-skid pad (12), and the adjustment sleeve (10) is provided with a plurality of groups of anti-skid patterns (13).

9. The multi-station freely adjustable sewage time-sharing sampling equipment according to claim 1 is characterized by: The traction tube (4) and the sample delivery tube (6) are both spiral hoses.

10. The method for using the multi-station freely adjustable sewage time-sharing sampling device according to any one of claims 1 to 9, characterized in that The following steps are involved: Step 1: According to the actual site conditions, the support rod structure (7) is extended to the maximum extent and is hung on the wellhead or pressed against the well wall in both directions, and the power switch (51) and the control panel switch (52) are turned on; Step 2: Control the second solenoid valve (46) and the third solenoid valve (48) to control the amount of air stored in the airbag structure (42), thereby controlling the depth of the sampling structure 5 in the sewage; Step 3: Control the sampling time period, sampling volume and corresponding inventory selection through the control unit (16); Step 4: The sewage is extracted by the sampling pump (41) through the sampling port (36), input into the water distribution device (19) via the sample delivery tube (6), and then selected by the first solenoid valve (23) at different positions to input the sample water into the corresponding sample bottle (29) or to be discharged through the waste water pipe (21); Step 5: After the sampling cycle is over, the device can be directly taken out or the sample bottle (29) can be replaced to start the next round of time-sharing sampling.

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