CN114323807A - Collecting device and collecting method for detecting benzene series in underground water - Google Patents
Collecting device and collecting method for detecting benzene series in underground water Download PDFInfo
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- CN114323807A CN114323807A CN202111609719.1A CN202111609719A CN114323807A CN 114323807 A CN114323807 A CN 114323807A CN 202111609719 A CN202111609719 A CN 202111609719A CN 114323807 A CN114323807 A CN 114323807A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000005070 sampling Methods 0.000 claims abstract description 29
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 239000002689 soil Substances 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 19
- 239000010902 straw Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 description 9
- 239000003673 groundwater Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000011109 contamination Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
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- 238000000576 coating method Methods 0.000 description 2
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- 230000015556 catabolic process Effects 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000003895 groundwater pollution Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
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Abstract
The invention discloses a collecting device and a collecting method for detecting benzene series in underground water, wherein the device comprises a fixed station, a hollow well pipe, a drilling mechanism, a sampling mechanism and a PLC (programmable logic controller); the drilling mechanism comprises a driving arm, a drill rod and a drill bit, the driving arm is clamped on the fixing table, a driving motor and a threaded roller are arranged in the driving arm, and the drill bit is arranged at the lower end of the drill rod; the sampling mechanism comprises an external thread pipe, a pushing pipe, a water collecting tank and a micro pump, wherein the lower end of the external thread pipe is provided with a filter tank, the pushing pipe is sleeved inside the external thread pipe, the water collecting tank is sleeved inside the filter tank and connected with the pushing pipe, the pushing pipe is sleeved inside the water collecting tank, and the micro pump is connected with the suction pipe; the PLC is electrically connected with each electric device; the device provided by the invention is reasonable in structural design, and provides reliable guarantee for detecting the benzene series in the underground water.
Description
Technical Field
The invention relates to the technical field of groundwater pollution treatment, in particular to a collecting device and a collecting method for detecting benzene series in groundwater.
Background
Has close relationship with human society. The storage of underground water forms a huge reservoir in the ground, and the reservoir is an important water source of water for agricultural irrigation, industrial and mining enterprises and urban living by virtue of stable water supply conditions and good water quality, becomes an essential important water resource for human society, and especially in arid and semi-arid regions with water shortage on the ground surface, the underground water often becomes a local main water supply source; but with the increasing development of economy in China, the pollution of underground water caused by the discharge of production and living wastewater is increasingly serious. The main types of contamination include heavy metal contamination, radioactive contamination and organic contamination. Of which organic contamination is more complex, covert and hazardous among the 3 major contaminants. Benzene series is a common organic pollutant in underground water of a chemical pollution site, is extremely harmful to human health, can be enriched at an extremely low concentration, and causes serious and even irreversible harm to human health and environment, so that the enhancement of the degradation and supervision of the benzene series in water quality is very important.
When detecting benzene series in underground water, collecting an underground water sample; then current groundwater sample collection system is in the collection process, very easily causes the migration to the water sample, has reduced authenticity and the representativeness of water sample.
Disclosure of Invention
Aiming at the technical problems, the invention provides a collecting device and a collecting method for detecting benzene series in underground water.
The technical scheme of the invention is as follows: a collecting device for detecting benzene series in underground water comprises a fixed station, a hollow well pipe, a drilling mechanism, a sampling mechanism and a PLC (programmable logic controller); a through hole is formed in the center of the fixed table, a guide pipe is fixedly sleeved in the through hole, and a plurality of sliding clamping grooves are uniformly distributed on the upper end surface of the fixed table and are positioned in the circumferential direction of the through hole;
the hollow well pipes are provided with a plurality of hollow well pipes which are movably clamped through mounting sleeves, the side wall of each hollow well pipe is provided with a water permeable hole, and each hollow well pipe can be sleeved in the guide pipe;
the drilling mechanism comprises driving arms, a drill rod and a drill bit, the number of the driving arms is correspondingly consistent with that of the sliding clamping grooves, and each driving arm is respectively clamped in the corresponding sliding clamping groove in a sliding manner and is fixedly clamped with the sliding clamping groove through a limiting pin; a driving motor and a threaded roller are arranged inside each driving arm, the threaded roller is rotationally clamped inside the driving arm and is close to one side of the through hole, and the driving motor provides power for the threaded roller; the drill rods are provided with a plurality of drill rods which are in threaded connection, the surfaces of the drill rods are provided with spiral grooves, and the drill rods can be in threaded connection with the threaded rollers through the spiral grooves; after the drill rods are connected with each other, the lower end of the drill rod positioned at the bottommost end is clamped with a disc, and the disc is rotationally clamped with the inner bottom of the hollow well pipe which enters the guide pipe firstly; the drill bit is fixedly arranged at the lower end of the disc;
the sampling mechanism comprises an external threaded pipe, a pushing pipe, a water collecting tank and a micro pump; the external thread pipe is hollow, the external thread pipe can be in threaded connection with the threaded idler wheel, the lower end of the external thread pipe is provided with a filter tank, the lower end of the filter tank is open, the side wall of the filter tank is provided with filter holes, the push pipe is movably sleeved inside the external thread pipe, the water collecting tank is movably sleeved inside the filter tank and is connected with the push pipe, the top of the water collecting tank is provided with a sample feeding channel, the push pipe is sleeved with a suction pipe, the end part of the suction pipe extends to the inside of the water collecting tank, the micro pump is arranged on the fixed table, and the output end of the micro pump is connected with the suction pipe;
the PLC controller is respectively electrically connected with the driving motor and the micropump.
Furthermore, a plurality of positioning ball heads are arranged at the upper end and the lower end of the mounting sleeve, a plurality of locking arc plates are arranged at the end part of the hollow well pipe in pairs, each locking arc plate is respectively clamped with the end part of the hollow well pipe in a sliding manner, a locking spring is arranged at the joint, and an arc-shaped locking groove is formed in one side, opposite to each pair of locking arc plates; when two hollow well pipes are close to each other, the positioning ball head is inserted into the arc-shaped locking grooves of the two adjacent locking arc plates, and the two locking arc plates lock the positioning ball head under the action of the locking spring, so that the connection stability between the two adjacent hollow well pipes is improved.
Furthermore, a plurality of anchor rods are uniformly distributed on the circumferential direction of the fixed table, and the fixed table and a sampling place are fixed by the anchor rods, so that the displacement of the hollow well pipe in the underground water collection process is avoided, the sampling precision of the underground water is improved, and favorable conditions are provided for the detection and analysis of benzene series in the underground water.
Further, be provided with the direction slide bar on the filter tank lateral wall, the cover is equipped with reset spring on the direction slide bar, jar slide clamping that catchments is on the direction slide bar, and with the reset spring butt, through setting up direction slide bar and reset spring, after the groundwater sample is collected to the jar inside of catchmenting, loosen behind the propelling movement pipe, the jar that catchments hugs closely under reset spring effect filters jar inside top, seal introduction channel, avoided groundwater sample suction in-process foreign matter to get into in the jar that catchments.
Further, evenly distributed has the several bar card platform on the inner wall of stand pipe, is provided with the screens groove that corresponds unanimous with bar card platform quantity on the outer wall of hollow well pipe, through setting up bar card platform and screens groove, can avoid hollow well pipe to move down the in-process and rotate and block up the hole of permeating water.
Furthermore, the filtering tank and the external threaded pipe, the water collecting tank and the pushing pipe are in threaded connection, so that the filtering tank and the water collecting tank can be conveniently detached and collected.
Furthermore, the external thread pipe is provided with scale marks, and the sampling depth of the underground water sample can be conveniently penetrated through by the scale marks.
Furthermore, a ball bearing is arranged at the joint of the disc and the hollow well pipe, dustproof baffle plates are arranged on two sides of the ball bearing, and smoothness of the disc in rotation is improved by arranging the ball bearing.
Further, the surface of the drill bit is sprayed with a wear-resistant coating; the service life of the drill bit is prolonged.
The invention also provides a collecting method for detecting the benzene series in the underground water, which comprises the following steps:
s1, moving the device to an underground water sampling sample, fixing a fixed platform on the ground, and then connecting a driving motor and a micro pump with an external power supply;
s2, adjusting the position of each driving arm in the sliding clamping groove to enable each threaded roller to be abutted against the drill rod, and then clamping and fixing the driving arms and the sliding clamping groove by using a limiting pin; finally, the PLC controller controls the driving motor to start, and the driving motor drives the threaded roller to rotate, so that the drill bit rotates to enter the soil;
s3, after the hollow well pipe connected with the disc enters the soil, controlling the driving motor to stop through the PLC, then moving the driving arm to the initial position, and clamping the next hollow well pipe with the hollow well pipe entering the soil through the mounting sleeve;
s4, repeating the steps S2-S3 until the hollow well pipe reaches the preset depth in the soil, then removing the drill rod, and putting the external threaded pipe, the pushing pipe, the suction pipe, the water collecting tank and the filter tank into the connected hollow well pipe together; then adjusting the position of each driving arm in the sliding clamping groove to enable each threaded roller to be abutted against the outer threaded pipe; finally, the PLC controller controls the driving motor to start, and the water collecting tank and the filtering tank are lowered to a preset depth in the hollow well pipe;
s5, pushing the pushing pipe downwards to enable the water collecting tank to slide downwards in the filtering tank, so that the sample feeding channel is communicated with the inside of the hollow well pipe, and at the moment, underground water in the hollow well pipe enters the water collecting tank through the sample feeding channel;
s6, controlling the micro pump to start through the PLC, sucking the water sample in the water collecting tank into an external underground water sample bottle through the suction pipe, enabling the water sample to overflow in the underground water sample bottle in an excessive manner to form a convex surface, screwing the bottle cap, reversing the underground water sample bottle, observing for several seconds, and ensuring that no air bubbles exist in the bottle.
Compared with the prior art, the beneficial effects of the invention are embodied in the following points:
firstly, the device of the invention has reasonable structural design, a sampling well is firstly established in the process of collecting the underground water sample, the authenticity and the reliability of the collected underground water sample are ensured, and favorable conditions are provided for the detection and the analysis of the benzene series in the underground water, thereby being beneficial to establishing a feasible benzene series treatment scheme in the underground water;
secondly, quantitative and fixed-depth collection of underground water samples can be realized by using the device disclosed by the invention, so that the convenience of sampling work is greatly improved;
thirdly, the combined hollow well pipe and the combined drill rod are adopted, so that the device can be suitable for collecting underground water samples at different depths, and has strong applicability.
Drawings
FIG. 1 is a schematic view of the connection of a hollow well pipe, drilling means and a stationary table according to the invention;
FIG. 2 is a schematic view of the connection of the hollow well tubular, sampling mechanism and mounting block of the present invention;
FIG. 3 is a top view block diagram of FIG. 1 of the present invention;
FIG. 4 is a schematic view of the connection of a hollow well tubular to a stationary table according to the invention;
FIG. 5 is a schematic view of the connection of a hollow well tubular of the present invention to a mounting sleeve;
FIG. 6 is a profile of the locking arc plate of the present invention over a hollow well pipe;
FIG. 7 is an enlarged schematic view at A of FIG. 2 of the present invention;
FIG. 8 is an enlarged schematic view of the invention at B of FIG. 2;
wherein, 1-a fixed platform, 10-a through hole, 11-a guide pipe, 110-a strip-shaped clamping platform, 12-a sliding clamping groove, 13-an anchor rod, 2-a hollow well pipe, 20-a mounting sleeve, 200-a positioning ball head, 21-a locking arc plate, 210-a locking spring, 211-an arc-shaped locking groove, 22-a clamping groove, 3-a drilling mechanism, 30-a driving arm and 300-a limiting pin, 31-drill rod, 310-disc, 32-drill bit, 33-driving motor, 34-threaded roller, 4-sampling mechanism, 40-external threaded pipe, 41-pushing pipe, 410-suction pipe, 42-water collecting tank, 420-sample feeding channel, 43-micro pump, 44-filter tank, 440-guide slide rod and 441-reset spring.
Detailed Description
Example 1
The collecting device for detecting the benzene series in the underground water as shown in the figures 1, 2 and 3 comprises a fixed platform 1, a hollow well pipe 2, a drilling mechanism 3, a sampling mechanism 4 and a PLC (programmable logic controller); a through hole 10 is formed in the center of the fixed table 1, a guide pipe 11 is fixedly sleeved in the through hole 10, and 3 sliding clamping grooves 12 are uniformly distributed on the upper end face of the fixed table 1 and are positioned in the circumferential direction of the through hole 10;
as shown in fig. 1 and 2, 3 hollow well pipes 2 are arranged, each hollow well pipe 2 is movably clamped through a mounting sleeve 20, a water permeable hole is arranged on the side wall of each hollow well pipe 2, and each hollow well pipe 2 can be sleeved in a guide pipe 11;
as shown in fig. 1 and 3, the drilling mechanism 3 includes driving arms 30, a drill rod 31 and a drill bit 32, the number of the driving arms 30 is corresponding to the number of the sliding slots 12, and each driving arm 30 is slidably clamped in the corresponding sliding slot 12 and is clamped and fixed with the sliding slot 12 by a limit pin 300; a driving motor 33 and a threaded roller 34 are arranged inside each driving arm 30, the threaded roller 34 is rotationally clamped inside the driving arm 30 and is close to one side of the through hole 10, and the driving motor 33 provides power for the threaded roller 34; 3 drill rods 31 are arranged, the drill rods 31 are in threaded connection, the surface of each drill rod 31 is provided with a spiral groove, and the drill rods 31 can be in threaded connection with the threaded rollers 34 through the spiral grooves; after the drill rods 31 are connected with each other, the lower end of the drill rod 31 at the bottommost end is clamped with a disc 310, and the disc 310 is rotationally clamped with the inner bottom of the hollow well pipe 2 which firstly enters the guide pipe 11; the drill bit 32 is fixedly arranged at the lower end of the disc 310;
as shown in fig. 2, 7 and 8, the sampling mechanism 4 includes an externally threaded pipe 40, a pushing pipe 41, a water collection tank 42 and a micro pump 43; the external thread pipe 40 is hollow, the external thread pipe 40 can be in threaded connection with the thread roller 34, the lower end of the external thread pipe 40 is provided with a filter tank 44, the lower end of the filter tank 44 is open, the side wall of the filter tank is provided with filter holes, the push pipe 41 is movably sleeved inside the external thread pipe 40, the water collecting tank 42 is movably sleeved inside the filter tank 44 and is connected with the push pipe 41, the top of the water collecting tank 42 is provided with a sample feeding channel 420, the push pipe 41 is sleeved with a straw 410, the end of the straw 410 extends into the water collecting tank 42, the micro pump 43 is arranged on the fixed table 1, and the output end of the micro pump 43 is connected with the straw 410;
the PLC is respectively electrically connected with the driving motor 33 and the micro pump 43; the PLC controller, the driving motor 33 and the micro pump 43 are all commercially available products.
Example 2
The embodiment describes a collecting method of the collecting device for detecting benzene series in underground water in the embodiment 1, which comprises the following steps:
s1, moving the device to an underground water sampling mode, fixing the fixed platform 1 on the ground, and then connecting the driving motor 33 and the micro pump 43 with an external power supply;
s2, adjusting the position of each driving arm 30 in the sliding clamping groove 12 to enable each threaded roller 34 to be abutted against the drill rod 31, and then clamping and fixing the driving arms 30 and the sliding clamping groove 12 by using the limiting pins 300; finally, the PLC controller controls the driving motor 33 to start, and the driving motor 33 is used for driving the threaded roller 34 to rotate, so that the drill bit 32 rotates to enter the soil;
s3, after the hollow well pipe 2 connected with the disc 310 enters the soil, controlling the driving motor 33 to stop through the PLC, then moving the driving arm 30 to the initial position, and clamping the next hollow well pipe 2 with the hollow well pipe 2 entering the soil through the mounting sleeve 20;
s4, repeating the steps S2-S3 until the hollow well pipe 2 reaches a preset depth in the soil, then removing the drill rod 31, and putting the external threaded pipe 40, the pushing pipe 41, the suction pipe 410, the water collecting tank 42 and the filter tank 44 into the connected hollow well pipe 2 together; then adjusting the position of each driving arm 30 in the sliding slot 12 to make each threaded roller 34 abut against the outer threaded pipe 40; finally, the PLC controls the drive motor 33 to start, and the water collecting tank 42 and the filtering tank 44 are lowered to a preset depth in the hollow well pipe 2;
s5, pushing the pushing pipe 41 downwards to make the water collecting tank 42 slide downwards in the filtering tank 44, so that the sample feeding channel 420 is communicated with the inside of the hollow well pipe 2, and the underground water in the hollow well pipe 2 enters the water collecting tank 42 through the sample feeding channel 420;
s6, controlling the micro pump 43 to start through the PLC, sucking the water sample in the water collecting tank 42 into the external underground water sample bottle through the suction pipe 410, enabling the water sample to overflow excessively in the underground water sample bottle to form a convex surface, screwing the bottle cap, reversing the underground water sample bottle, observing for several seconds, and ensuring that no bubbles exist in the bottle.
Example 3
The collecting device for detecting the benzene series in the underground water as shown in the figures 1, 2 and 3 comprises a fixed platform 1, a hollow well pipe 2, a drilling mechanism 3, a sampling mechanism 4 and a PLC (programmable logic controller); a through hole 10 is formed in the center of the fixed table 1, a guide pipe 11 is fixedly sleeved in the through hole 10, and 3 sliding clamping grooves 12 are uniformly distributed on the upper end face of the fixed table 1 and are positioned in the circumferential direction of the through hole 10;
as shown in fig. 1, 2, 5 and 6, 3 hollow well pipes 2 are arranged, each hollow well pipe 2 is movably clamped and connected through a mounting sleeve 20, a water permeable hole is arranged on the side wall of each hollow well pipe 2, and each hollow well pipe 2 can be sleeved inside a guide pipe 11; the upper end and the lower end of the mounting sleeve 20 are provided with a plurality of positioning bulbs 200, the end part of the hollow well pipe 2 is provided with 3 pairs of locking arc plates 21 in pairs, each locking arc plate 21 is respectively clamped with the end part of the hollow well pipe 2 in a sliding manner, a locking spring 210 is arranged at the joint, and one side, opposite to each pair of locking arc plates 21, is provided with an arc locking groove 211; when two hollow well pipes 2 are close to each other, the positioning ball head 200 is inserted into the arc-shaped locking grooves 211 of two adjacent locking arc plates 21, and the two locking arc plates 21 lock the positioning ball head 200 under the action of the locking springs 210, so that the connection stability between the two adjacent hollow well pipes 2 is improved;
as shown in fig. 1 and 3, the drilling mechanism 3 includes driving arms 30, a drill rod 31 and a drill bit 32, the number of the driving arms 30 is corresponding to the number of the sliding slots 12, and each driving arm 30 is slidably clamped in the corresponding sliding slot 12 and is clamped and fixed with the sliding slot 12 by a limit pin 300; a driving motor 33 and a threaded roller 34 are arranged inside each driving arm 30, the threaded roller 34 is rotationally clamped inside the driving arm 30 and is close to one side of the through hole 10, and the driving motor 33 provides power for the threaded roller 34; 3 drill rods 31 are arranged, the drill rods 31 are in threaded connection, the surface of each drill rod 31 is provided with a spiral groove, and the drill rods 31 can be in threaded connection with the threaded rollers 34 through the spiral grooves; after the drill rods 31 are connected with each other, the lower end of the drill rod 31 at the bottommost end is clamped with a disc 310, and the disc 310 is rotationally clamped with the inner bottom of the hollow well pipe 2 which firstly enters the guide pipe 11; the drill bit 32 is fixedly arranged at the lower end of the disc 310;
as shown in fig. 1, 7, and 8, the sampling mechanism 4 includes an externally threaded pipe 40, a pushing pipe 41, a water collection tank 42, and a micro pump 43; the external thread pipe 40 is hollow, the external thread pipe 40 can be in threaded connection with the thread roller 34, the lower end of the external thread pipe 40 is provided with a filter tank 44, the lower end of the filter tank 44 is open, the side wall of the filter tank is provided with filter holes, the push pipe 41 is movably sleeved inside the external thread pipe 40, the water collecting tank 42 is movably sleeved inside the filter tank 44 and is connected with the push pipe 41, the top of the water collecting tank 42 is provided with a sample feeding channel 420, the push pipe 41 is sleeved with a straw 410, the end of the straw 410 extends into the water collecting tank 42, the micro pump 43 is arranged on the fixed table 1, and the output end of the micro pump 43 is connected with the straw 410;
the PLC is respectively electrically connected with the driving motor 33 and the micro pump 43; the PLC controller, the driving motor 33 and the micro pump 43 are all commercially available products.
Example 4
The embodiment describes a collecting method of the collecting device for detecting benzene series in underground water in the embodiment 3, which comprises the following steps:
s1, moving the device to an underground water sampling mode, fixing the fixed platform 1 on the ground, and then connecting the driving motor 33 and the micro pump 43 with an external power supply;
s2, adjusting the position of each driving arm 30 in the sliding clamping groove 12 to enable each threaded roller 34 to be abutted against the drill rod 31, and then clamping and fixing the driving arms 30 and the sliding clamping groove 12 by using the limiting pins 300; finally, the PLC controller controls the driving motor 33 to start, and the driving motor 33 is used for driving the threaded roller 34 to rotate, so that the drill bit 32 rotates to enter the soil;
s3, after the hollow well pipe 2 connected with the disc 310 enters the soil, controlling the driving motor 33 to stop through the PLC, then moving the driving arm 30 to the initial position, and clamping the next hollow well pipe 2 with the hollow well pipe 2 entering the soil through the mounting sleeve 20; when two hollow well pipes 2 are close to each other, the positioning ball head 200 is inserted into the arc-shaped locking grooves 211 of two adjacent locking arc plates 21, and the two locking arc plates 21 lock the positioning ball head 200 under the action of the locking springs 210;
s4, repeating the steps S2-S3 until the hollow well pipe 2 reaches a preset depth in the soil, then removing the drill rod 31, and putting the external threaded pipe 40, the pushing pipe 41, the suction pipe 410, the water collecting tank 42 and the filter tank 44 into the connected hollow well pipe 2 together; then adjusting the position of each driving arm 30 in the sliding slot 12 to make each threaded roller 34 abut against the outer threaded pipe 40; finally, the PLC controls the drive motor 33 to start, and the water collecting tank 42 and the filtering tank 44 are lowered to a preset depth in the hollow well pipe 2;
s5, pushing the pushing pipe 41 downwards to make the water collecting tank 42 slide downwards in the filtering tank 44, so that the sample feeding channel 420 is communicated with the inside of the hollow well pipe 2, and the underground water in the hollow well pipe 2 enters the water collecting tank 42 through the sample feeding channel 420;
s6, controlling the micro pump 43 to start through the PLC, sucking the water sample in the water collecting tank 42 into the external underground water sample bottle through the suction pipe 410, enabling the water sample to overflow excessively in the underground water sample bottle to form a convex surface, screwing the bottle cap, reversing the underground water sample bottle, observing for several seconds, and ensuring that no bubbles exist in the bottle.
Example 5
The collecting device for detecting the benzene series in the underground water as shown in the figures 1, 2 and 3 comprises a fixed platform 1, a hollow well pipe 2, a drilling mechanism 3, a sampling mechanism 4 and a PLC (programmable logic controller); a through hole 10 is formed in the center of the fixed table 1, a guide pipe 11 is fixedly sleeved in the through hole 10, and 3 sliding clamping grooves 12 are uniformly distributed on the upper end face of the fixed table 1 and are positioned in the circumferential direction of the through hole 10;
as shown in fig. 1 and 2, 3 hollow well pipes 2 are arranged, each hollow well pipe 2 is movably clamped through a mounting sleeve 20, a water permeable hole is arranged on the side wall of each hollow well pipe 2, and each hollow well pipe 2 can be sleeved in a guide pipe 11;
as shown in fig. 1 and 3, the drilling mechanism 3 includes driving arms 30, a drill rod 31 and a drill bit 32, the number of the driving arms 30 is corresponding to the number of the sliding slots 12, and each driving arm 30 is slidably clamped in the corresponding sliding slot 12 and is clamped and fixed with the sliding slot 12 by a limit pin 300; a driving motor 33 and a threaded roller 34 are arranged inside each driving arm 30, the threaded roller 34 is rotationally clamped inside the driving arm 30 and is close to one side of the through hole 10, and the driving motor 33 provides power for the threaded roller 34; 3 drill rods 31 are arranged, the drill rods 31 are in threaded connection, the surface of each drill rod 31 is provided with a spiral groove, and the drill rods 31 can be in threaded connection with the threaded rollers 34 through the spiral grooves; after the drill rods 31 are connected with each other, the lower end of the drill rod 31 at the bottommost end is clamped with a disc 310, and the disc 310 is rotationally clamped with the inner bottom of the hollow well pipe 2 which firstly enters the guide pipe 11; the drill bit 32 is fixedly arranged at the lower end of the disc 310;
as shown in fig. 1, 7, and 8, the sampling mechanism 4 includes an externally threaded pipe 40, a pushing pipe 41, a water collection tank 42, and a micro pump 43; the external thread pipe 40 is hollow, the external thread pipe 40 can be in threaded connection with the thread roller 34, the lower end of the external thread pipe 40 is provided with a filter tank 44, the lower end of the filter tank 44 is open, the side wall of the filter tank is provided with filter holes, the push pipe 41 is movably sleeved inside the external thread pipe 40, the water collecting tank 42 is movably sleeved inside the filter tank 44 and is connected with the push pipe 41, the top of the water collecting tank 42 is provided with a sample feeding channel 420, the push pipe 41 is sleeved with a straw 410, the end of the straw 410 extends into the water collecting tank 42, the micro pump 43 is arranged on the fixed table 1, and the output end of the micro pump 43 is connected with the straw 410; the side wall of the filter tank 44 is provided with a guide sliding rod 440, the guide sliding rod 440 is sleeved with a return spring 441, the water collecting tank 42 is connected to the guide sliding rod 440 in a sliding and clamping mode and is abutted against the return spring 441, through the arrangement of the guide sliding rod 440 and the return spring 441, after an underground water sample is collected in the water collecting tank 42, the pushing pipe 41 is loosened, the water collecting tank 42 is tightly attached to the top in the filter tank 44 under the action of the return spring 441, the sample feeding channel 420 is sealed, and foreign matters are prevented from entering the water collecting tank 42 in the underground water sample suction process;
the PLC is respectively electrically connected with the driving motor 33 and the micro pump 43; the PLC controller, the driving motor 33 and the micro pump 43 are all commercially available products.
Example 6
The embodiment describes a collecting method of the collecting device for detecting benzene series in underground water in the embodiment 5, which comprises the following steps:
s1, moving the device to an underground water sampling mode, fixing the fixed platform 1 on the ground, and then connecting the driving motor 33 and the micro pump 43 with an external power supply;
s2, adjusting the position of each driving arm 30 in the sliding clamping groove 12 to enable each threaded roller 34 to be abutted against the drill rod 31, and then clamping and fixing the driving arms 30 and the sliding clamping groove 12 by using the limiting pins 300; finally, the PLC controller controls the driving motor 33 to start, and the driving motor 33 is used for driving the threaded roller 34 to rotate, so that the drill bit 32 rotates to enter the soil;
s3, after the hollow well pipe 2 connected with the disc 310 enters the soil, controlling the driving motor 33 to stop through the PLC, then moving the driving arm 30 to the initial position, and clamping the next hollow well pipe 2 with the hollow well pipe 2 entering the soil through the mounting sleeve 20;
s4, repeating the steps S2-S3 until the hollow well pipe 2 reaches a preset depth in the soil, then removing the drill rod 31, and putting the external threaded pipe 40, the pushing pipe 41, the suction pipe 410, the water collecting tank 42 and the filter tank 44 into the connected hollow well pipe 2 together; then adjusting the position of each driving arm 30 in the sliding slot 12 to make each threaded roller 34 abut against the outer threaded pipe 40; finally, the PLC controls the drive motor 33 to start, and the water collecting tank 42 and the filtering tank 44 are lowered to a preset depth in the hollow well pipe 2;
s5, pushing the pushing pipe 41 downwards to make the water collecting tank 42 slide downwards in the filtering tank 44 along the guiding slide bar 440, so that the sample feeding channel 420 is communicated with the inside of the hollow well pipe 2, and the groundwater in the hollow well pipe 2 enters the water collecting tank 42 through the sample feeding channel 420; after the underground water sample is collected in the water collecting tank 42 and the pushing pipe 41 is loosened, the water collecting tank 42 is tightly attached to the top of the filter tank 44 under the action of the return spring 441 to seal the sample feeding channel 420;
s6, controlling the micro pump 43 to start through the PLC, sucking the water sample in the water collecting tank 42 into the external underground water sample bottle through the suction pipe 410, enabling the water sample to overflow excessively in the underground water sample bottle to form a convex surface, screwing the bottle cap, reversing the underground water sample bottle, observing for several seconds, and ensuring that no bubbles exist in the bottle.
Example 7
The collecting device for detecting the benzene series in the underground water as shown in the figures 1, 2 and 3 comprises a fixed platform 1, a hollow well pipe 2, a drilling mechanism 3, a sampling mechanism 4 and a PLC (programmable logic controller); a through hole 10 is formed in the center of the fixed table 1, a guide pipe 11 is fixedly sleeved in the through hole 10, a plurality of strip-shaped clamping tables 110 are uniformly distributed on the inner wall of the guide pipe 11, and 3 sliding clamping grooves 12 are uniformly distributed on the upper end surface of the fixed table 1 and are positioned in the circumferential direction of the through hole 10; 4 anchor rods 13 are uniformly distributed on the fixing table 1 in the circumferential direction, and the fixing table 1 is fixed with a sampling place by utilizing the anchor rods 13, so that the displacement of the hollow well pipe 2 in the underground water acquisition process is avoided, the sampling precision of the underground water is improved, and favorable conditions are provided for the detection and analysis of benzene series in the underground water;
as shown in fig. 1, 2, 4, 5 and 6, 3 hollow well pipes 2 are arranged, each hollow well pipe 2 is movably clamped through a mounting sleeve 20, a water permeable hole is arranged on the side wall of each hollow well pipe 2, and each hollow well pipe 2 can be sleeved inside a guide pipe 11; the clamping grooves 22 with the number corresponding to that of the strip-shaped clamping tables 110 are arranged on the outer wall of the hollow well pipe 2, and the strip-shaped clamping tables 110 and the clamping grooves 22 can prevent the hollow well pipe 2 from rotating to block the water permeable holes in the downward moving process; the upper end and the lower end of the mounting sleeve 20 are provided with a plurality of positioning bulbs 200, the end part of the hollow well pipe 2 is provided with 3 pairs of locking arc plates 21 in pairs, each locking arc plate 21 is respectively clamped with the end part of the hollow well pipe 2 in a sliding manner, a locking spring 210 is arranged at the joint, and one side, opposite to each pair of locking arc plates 21, is provided with an arc locking groove 211; when two hollow well pipes 2 are close to each other, the positioning ball head 200 is inserted into the arc-shaped locking grooves 211 of two adjacent locking arc plates 21, and the two locking arc plates 21 lock the positioning ball head 200 under the action of the locking springs 210, so that the connection stability between the two adjacent hollow well pipes 2 is improved;
as shown in fig. 1 and 3, the drilling mechanism 3 includes driving arms 30, a drill rod 31 and a drill bit 32, the number of the driving arms 30 is corresponding to the number of the sliding slots 12, and each driving arm 30 is slidably clamped in the corresponding sliding slot 12 and is clamped and fixed with the sliding slot 12 by a limit pin 300; a driving motor 33 and a threaded roller 34 are arranged inside each driving arm 30, the threaded roller 34 is rotationally clamped inside the driving arm 30 and is close to one side of the through hole 10, and the driving motor 33 provides power for the threaded roller 34; 3 drill rods 31 are arranged, the drill rods 31 are in threaded connection, the surface of each drill rod 31 is provided with a spiral groove, and the drill rods 31 can be in threaded connection with the threaded rollers 34 through the spiral grooves; after the drill rods 31 are connected with each other, the lower end of the drill rod 31 at the bottommost end is clamped with a disc 310, and the disc 310 is rotationally clamped with the inner bottom of the hollow well pipe 2 which firstly enters the guide pipe 11; the drill 32 is fixedly arranged at the lower end of the disc 310, and the surface of the drill 32 is sprayed with a wear-resistant coating; the ball bearing is arranged at the joint of the disc 310 and the hollow well pipe 2, the dustproof baffle plates are arranged on two sides of the ball bearing, and the ball bearing is favorable for improving the smoothness of the disc 310 during rotation;
as shown in fig. 1, 7, and 8, the sampling mechanism 4 includes an externally threaded pipe 40, a pushing pipe 41, a water collection tank 42, and a micro pump 43; the external thread pipe 40 is hollow, the external thread pipe 40 can be in threaded connection with the thread roller 34, the lower end of the external thread pipe 40 is provided with a filter tank 44, the lower end of the filter tank 44 is open, the side wall of the external thread pipe 40 is provided with filter holes, the external thread pipe 40 is provided with scale marks, the push pipe 41 is movably sleeved inside the external thread pipe 40, the water collection tank 42 is movably sleeved inside the filter tank 44 and is connected with the push pipe 41, the top of the water collection tank 42 is provided with a sample introduction channel 420, the push pipe 41 is internally sleeved with a suction pipe 410, the end part of the suction pipe 410 extends into the water collection tank 42, the micro pump 43 is arranged on the fixed platform 1, and the output end of the micro pump 43 is connected with the suction pipe 410; the side wall of the filter tank 44 is provided with a guide sliding rod 440, the guide sliding rod 440 is sleeved with a return spring 441, the water collecting tank 42 is connected to the guide sliding rod 440 in a sliding and clamping mode and is abutted against the return spring 441, through the arrangement of the guide sliding rod 440 and the return spring 441, after an underground water sample is collected in the water collecting tank 42, the pushing pipe 41 is loosened, the water collecting tank 42 is tightly attached to the top in the filter tank 44 under the action of the return spring 441, the sample feeding channel 420 is sealed, and foreign matters are prevented from entering the water collecting tank 42 in the underground water sample suction process; the filtering tank 44 is in threaded connection with the external threaded pipe 40, and the water collecting tank 42 is in threaded connection with the pushing pipe 41, so that the filtering tank 44 and the water collecting tank 42 are convenient to disassemble and collect;
the PLC is respectively electrically connected with the driving motor 33 and the micro pump 43; the PLC controller, the driving motor 33 and the micro pump 43 are all commercially available products.
Example 8
The present example describes the collecting method of the collecting apparatus for detecting benzene compounds in groundwater according to example 7, including the steps of:
s1, moving the device to an underground water sampling mode, fixing the fixing table 1 with the ground through the anchor rod 13, and then connecting the driving motor 33 and the micro pump 43 with an external power supply;
s2, adjusting the position of each driving arm 30 in the sliding clamping groove 12 to enable each threaded roller 34 to be abutted against the drill rod 31, and then clamping and fixing the driving arms 30 and the sliding clamping groove 12 by using the limiting pins 300; finally, the PLC controller controls the driving motor 33 to start, and the driving motor 33 is used for driving the threaded roller 34 to rotate, so that the drill bit 32 rotates to enter the soil;
s3, after the hollow well pipe 2 connected with the disc 310 enters the soil, controlling the driving motor 33 to stop through the PLC, then moving the driving arm 30 to the initial position, and clamping the next hollow well pipe 2 with the hollow well pipe 2 entering the soil through the mounting sleeve 20; when two hollow well pipes 2 are close to each other, the positioning ball head 200 is inserted into the arc-shaped locking grooves 211 of two adjacent locking arc plates 21, and the two locking arc plates 21 lock the positioning ball head 200 under the action of the locking springs 210;
s4, repeating the steps S2-S3 until the hollow well pipe 2 reaches a preset depth in the soil, then removing the drill rod 31, and putting the external threaded pipe 40, the pushing pipe 41, the suction pipe 410, the water collecting tank 42 and the filter tank 44 into the connected hollow well pipe 2 together; then adjusting the position of each driving arm 30 in the sliding slot 12 to make each threaded roller 34 abut against the outer threaded pipe 40; finally, the PLC controls the drive motor 33 to start, and the water collecting tank 42 and the filtering tank 44 are lowered to a preset depth in the hollow well pipe 2;
s5, pushing the pushing pipe 41 downwards to make the water collecting tank 42 slide downwards in the filtering tank 44 along the guiding slide bar 440, so that the sample feeding channel 420 is communicated with the inside of the hollow well pipe 2, and the groundwater in the hollow well pipe 2 enters the water collecting tank 42 through the sample feeding channel 420; after the underground water sample is collected in the water collecting tank 42 and the pushing pipe 41 is loosened, the water collecting tank 42 is tightly attached to the top of the filter tank 44 under the action of the return spring 441 to seal the sample feeding channel 420;
s6, controlling the micro pump 43 to start through the PLC, sucking the water sample in the water collecting tank 42 into the external underground water sample bottle through the suction pipe 410, enabling the water sample to overflow excessively in the underground water sample bottle to form a convex surface, screwing the bottle cap, reversing the underground water sample bottle, observing for several seconds, and ensuring that no bubbles exist in the bottle.
Claims (10)
1. The collecting device for detecting the benzene series in the underground water is characterized by comprising a fixing table (1), a hollow well pipe (2), a drilling mechanism (3), a sampling mechanism (4) and a PLC (programmable logic controller); a through hole (10) is formed in the center of the fixed table (1), a guide pipe (11) is fixedly sleeved in the through hole (10), and a plurality of sliding clamping grooves (12) are uniformly distributed on the upper end face of the fixed table (1) and are positioned in the circumferential direction of the through hole (10);
the hollow well pipes (2) are provided with a plurality of hollow well pipes, the hollow well pipes (2) are movably clamped through mounting sleeves (20), water permeable holes are formed in the side walls of the hollow well pipes (2), and the hollow well pipes (2) can be sleeved in the guide pipes (11);
the drilling mechanism (3) comprises driving arms (30), a drill rod (31) and a drill bit (32), the number of the driving arms (30) is correspondingly consistent with that of the sliding clamping grooves (12), and each driving arm (30) is respectively clamped in the corresponding sliding clamping groove (12) in a sliding manner and is clamped and fixed with the sliding clamping groove (12) through a limiting pin (300); a driving motor (33) and a threaded roller (34) are arranged inside each driving arm (30), the threaded roller (34) is rotationally clamped inside each driving arm (30) and is close to one side of the through hole (10), and the driving motor (33) provides power for the threaded roller (34); the drilling rods (31) are arranged in a plurality of numbers, the drilling rods (31) are in threaded connection, the surfaces of the drilling rods (31) are provided with spiral grooves, and the drilling rods (31) can be in threaded connection with the threaded rollers (34) through the spiral grooves; after the drill rods (31) are connected with each other, the lower end of the drill rod (31) positioned at the bottommost end is clamped with a disc (310), and the disc (310) is rotationally clamped with the inner bottom of the hollow well pipe (2) which firstly enters the guide pipe (11); the drill bit (32) is fixedly arranged at the lower end of the disc (310);
the sampling mechanism (4) comprises an external thread pipe (40), a pushing pipe (41), a water collecting tank (42) and a micro pump (43); the outer threaded pipe (40) is hollow, the outer threaded pipe (40) can be in threaded connection with the threaded roller (34), a filter tank (44) is arranged at the lower end of the outer threaded pipe (40), an opening is formed in the lower end of the filter tank (44), a filter hole is formed in the side wall of the filter tank (44), the pushing pipe (41) is movably sleeved inside the outer threaded pipe (40), the water collecting tank (42) is movably sleeved inside the filter tank (44) and is connected with the pushing pipe (41), a sample feeding channel (420) is arranged at the top of the water collecting tank (42), a straw (410) is sleeved inside the pushing pipe (41), the end of the straw (410) extends to the inside of the water collecting tank (42), the micro pump (43) is arranged on the fixed table (1), and the output end of the micro pump (43) is connected with the straw (410);
the PLC is respectively and electrically connected with the driving motor (33) and the micro pump (43).
2. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein a plurality of positioning bulbs (200) are arranged at the upper end and the lower end of the mounting sleeve (20), a plurality of locking arc plates (21) are arranged at the end of the hollow well pipe (2) in pairs, each locking arc plate (21) is slidably clamped with the end of the hollow well pipe (2), a locking spring (210) is arranged at the joint, and an arc-shaped locking groove (211) is arranged at one side of each pair of locking arc plates (21) opposite to each other.
3. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein a plurality of anchor rods (13) are uniformly distributed on the fixing table (1) in the circumferential direction.
4. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein a guide slide rod (440) is arranged on the side wall of the filtering tank (44), a return spring (441) is sleeved on the guide slide rod (440), and the water collecting tank (42) is slidably clamped on the guide slide rod (440) and is abutted against the return spring (441).
5. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein a plurality of strip-shaped clamping platforms (110) are uniformly distributed on the inner wall of the guide pipe (11), and clamping grooves (22) with the number corresponding to that of the strip-shaped clamping platforms (110) are arranged on the outer wall of the hollow well pipe (2).
6. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein the filtering tank (44) is in threaded connection with the external threaded pipe (40), the water collecting tank (42) is in threaded connection with the pushing pipe (41).
7. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein the external thread pipe (40) is provided with scale marks.
8. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein a ball bearing is arranged at the joint of the disc (310) and the hollow well pipe (2), and both sides of the ball bearing are provided with dustproof baffles.
9. The collecting method of the collecting device for detecting the benzene series in the underground water as claimed in any one of claims 1 to 8, wherein the method comprises the following steps:
s1, moving the device to an underground water sampling sample, fixing the fixed platform (1) on the ground, and then connecting the driving motor (33) and the micro pump (43) with an external power supply;
s2, adjusting the position of each driving arm (30) in the sliding clamping groove (12), enabling each threaded roller (34) to be abutted against the drill rod (31), and then clamping and fixing the driving arms (30) and the sliding clamping groove (12) by utilizing the limiting pins (300); finally, the PLC controller controls the driving motor (33) to start, and the driving motor (33) is utilized to drive the threaded roller (34) to rotate, so that the drill bit (32) rotates to enter the soil;
s3, after the hollow well pipe (2) connected with the disc (310) enters the soil, controlling the driving motor (33) to stop through the PLC, then moving the driving arm (30) to the initial position, and clamping the next hollow well pipe (2) with the hollow well pipe (2) entering the soil through the mounting sleeve (20);
s4, repeating the steps S2-S3 until the hollow well pipe (2) reaches a preset depth in soil, then removing the drill rod (31), and putting the external threaded pipe (40), the pushing pipe (41), the suction pipe (410), the water collecting tank (42) and the filtering tank (44) into the connected hollow well pipe (2) together; then adjusting the position of each driving arm (30) in the sliding clamping groove (12) to enable each threaded roller (34) to be abutted against the external threaded pipe (40); finally, the PLC controller controls the driving motor (33) to start, and the water collecting tank (42) and the filtering tank (44) are lowered to a preset depth in the hollow well pipe (2);
s5, pushing the pushing pipe (41) downwards to enable the water collecting tank (42) to slide downwards in the filtering tank (44), so that the sample feeding channel (420) is communicated with the inside of the hollow well pipe (2), and then the underground water in the hollow well pipe (2) enters the water collecting tank (42) through the sample feeding channel (420);
s6, controlling the micro pump (43) to start through the PLC, sucking the water sample in the water collection tank (42) into an external underground water sample bottle through the suction pipe (410), enabling the water sample to overflow excessively in the underground water sample bottle to form a convex surface, then screwing the bottle cap, reversing the underground water sample bottle, observing for several seconds, and ensuring that no bubbles exist in the bottle.
10. The collecting device for detecting the benzene series in the underground water as claimed in claim 1, wherein 3-5 anchor rods (13) are uniformly distributed on the fixing table (1).
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