CN116429516A - Ecological environment groundwater monitoring and sampling device and sampling method thereof - Google Patents
Ecological environment groundwater monitoring and sampling device and sampling method thereof Download PDFInfo
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- CN116429516A CN116429516A CN202310699764.3A CN202310699764A CN116429516A CN 116429516 A CN116429516 A CN 116429516A CN 202310699764 A CN202310699764 A CN 202310699764A CN 116429516 A CN116429516 A CN 116429516A
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- 238000005070 sampling Methods 0.000 title claims abstract description 168
- 239000003673 groundwater Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000001556 precipitation Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 59
- 238000007789 sealing Methods 0.000 claims description 48
- 238000004891 communication Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 description 8
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The application relates to an ecological environment underground water monitoring and sampling device and a sampling method thereof, which relate to the technical field of underground water detection and are used for detecting underground water in a precipitation well, and comprise a workbench; the sampling assembly is internally provided with a cavity which is used for storing underground water and can be communicated with the outside, and a suspension piece which is arranged on the workbench and is used for driving the sampling assembly into the dewatering well; the positioning assembly is arranged on the sampling assembly and used for adjusting and fixing the position of the sampling assembly. The accuracy of groundwater sampling can be improved.
Description
Technical Field
The application relates to the technical field of groundwater detection, in particular to an ecological environment groundwater monitoring sampling device and a sampling method thereof.
Background
Water is an important resource for human to live, and groundwater is one of important water sources for agricultural irrigation, industrial and mining and cities due to the advantages of stable water quantity, good water quality and the like, and the groundwater needs to be periodically sampled and detected in the process of being used so as to ensure the safety of the groundwater source.
The existing sampling device comprises a winch and a sampler fixedly connected with a winch traction rope; when the underground water is sampled and detected, firstly, a constructor downwards settles the sampler in the dewatering well through the winch, so that the sampler enters the water, the constructor can obtain the depth position of the sampler in the water through the length of the winch traction rope, and after the sampler reaches the designated depth, the constructor controls the sampler to sample the water in the dewatering well.
Above-mentioned haulage rope and sampler on the hoist engine in the sampling process can receive the influence of rivers effect in the aquatic, lead to the haulage rope not be in vertical state completely, and then lead to the sampler to arrive the degree of depth that degree of depth and rope detected different in the aquatic in fact to the water sample that makes the sampler obtain takes place the error, and then leads to groundwater sample inaccuracy.
Disclosure of Invention
In order to improve the accuracy of groundwater sampling, the application provides an ecological environment groundwater monitoring sampling device and a sampling method thereof.
In a first aspect, the application provides an ecological environment groundwater monitoring sampling device, adopts following technical scheme:
an ecological environment groundwater monitoring sampling device for detect the groundwater in the precipitation well, include:
a work table;
the sampling assembly is internally provided with a cavity which is used for storing underground water and can be communicated with the outside,
the suspension piece is arranged on the workbench and is used for driving the sampling assembly into the dewatering well;
the positioning assembly is arranged on the sampling assembly and used for adjusting and fixing the position of the sampling assembly.
Through adopting above-mentioned technical scheme, the constructor drives sampling assembly through the suspension member and gets into in the precipitation well, adjusts the position of sampling assembly in the precipitation well through locating component afterwards for sampling assembly reaches actual water level depth, and after sampling assembly position adjustment is accomplished, through locating component with sampling assembly's fixed in position, the sampling assembly of being convenient for carries out accurate sample in the precipitation well, thereby has improved the accuracy of groundwater sample.
Optionally, the locating component includes coaxial setting in precipitation well and the mounting panel of being connected with sampling component, coaxial cover establish on the mounting panel and be used for with the sealing member of precipitation well inner wall complete butt, the sealing member adopts flexible material to make, and the sealing member is inside to be the cavity structure, is provided with on the workstation and is used for filling gaseous drive assembly to the sealing member in.
Through adopting above-mentioned technical scheme, through drive assembly to the inside packing gas of sealing member, the sealing member is at the in-process of expanding gradually with precipitation well inner wall butt and to the position of sampling assembly in the precipitation well adjust, when the inside atmospheric pressure of sealing member reaches the default, the sealing member is accomplished the position control of sampling assembly and is closely abutted with precipitation well inner wall for the position fixing of sampling assembly.
Optionally, the sampling assembly comprises a baffle and a sampling piece, a sampling groove for storing groundwater is formed in the sampling piece, and a sampling hole communicated with the outside is formed in the inner wall of the sampling groove; the baffle is positioned in the sampling groove and is covered at the communication part of the sampling groove and the sampling hole, and the baffle is in sliding connection with the sampling piece along the circumferential direction of the mounting plate; the sampling piece is provided with a transmission component used for driving the baffle to slide along the circumference of the mounting plate under the driving of the driving component, and the sampling piece is connected with the mounting plate through the transmission component.
Through adopting above-mentioned technical scheme, after the sampling piece position is fixed, drive the baffle through drive assembly and slide for the water in the precipitation well passes through the sampling hole and gets into in the sampling groove.
Optionally, the sampling groove is circumferentially arranged with a plurality of sampling grooves along the mounting plate; the baffle is provided with a plurality of, and with sampling groove one-to-one.
Through adopting above-mentioned technical scheme, a plurality of setting of sampling tank makes sampling device can gather the water sample of different water levels, has enlarged water quality testing's sample scope, and the provision of a plurality of sample can make water quality testing's result more accurate.
Optionally, the transmission assembly includes:
the fixed part is internally provided with a sliding cavity which is coaxially arranged with the dewatering well, the outer side wall of the sliding cavity is provided with a plurality of sliding grooves along the circumferential direction of the sliding cavity, and the sliding grooves are in one-to-one correspondence with the sampling grooves; the side wall of the chute is provided with a connecting groove communicated with the sampling groove, and the baffle is always covered at the communicating position of the corresponding sampling groove and the connecting groove;
the sliding plates are provided with a plurality of sliding grooves and correspond to the sliding grooves one by one, the sliding plates are arranged in the corresponding sliding grooves in a sliding manner along the length direction of the sliding grooves, and the sliding plates are always covered at the positions where the corresponding connecting grooves are communicated with the sliding grooves; the driving assembly is used for sequentially driving the sliding plates to slide in the corresponding sliding grooves;
the transmission springs are arranged in the corresponding sliding grooves and fixedly arranged between the sliding plates and the side walls of the sliding grooves along the length direction of the sliding grooves, and are used for driving the sliding plates to slide in the sliding grooves;
the connecting rods are arranged in the corresponding connecting grooves and are fixedly connected with the corresponding sliding plates and the corresponding baffle plates.
By adopting the technical scheme, the driving assembly drives the sliding plates to sequentially drive, and when one sliding plate is in a sliding state, the other sliding plates are in a static state in the sliding groove; the slide board drives the corresponding baffle through the connecting rod in the sliding process and slides, so that water in the dewatering well can enter the sampling groove through the sampling hole.
Optionally, the driving assembly includes:
one end of the air supply pipe is communicated with the outside, and the other end of the air supply pipe is communicated with the inside of the sealing piece, and the air supply pipe is of a corrugated pipe structure;
the air pump is arranged on the air supply pipe and fixedly connected with the workbench.
Through adopting above-mentioned technical scheme, start the air pump, the air pump is through the air supply pipe with external gas transportation to the sealing member in for the sealing member expands gradually, and makes sealing member and precipitation well inner wall inseparable butt.
Optionally, the driving assembly further includes:
the fixed plate is positioned in the sliding cavity and is fixedly connected with the fixed piece;
the transmission plate is arranged in the sliding cavity in a sliding manner along the length direction of the sliding cavity, and attractive force exists between the transmission plate and the sliding plate; the sliding cavity is divided into a first cavity and a second cavity by the fixed plate and the transmission plate;
one end of the communicating pipe is communicated with the air supply pipe, the other end of the communicating pipe is communicated with the first cavity, and a two-way overflow valve is arranged on the communicating pipe;
the elastic rope is fixedly arranged between the fixed plate and the transmission plate and is positioned in the first cavity.
By adopting the technical scheme, the air pressure in the communicating pipe is increased to the starting pressure of the two-way overflow valve by adjusting the power of the air pump, so that external air enters the first cavity through the air supply pipe and the communicating pipe; the gas in the first cavity pushes the transmission plate to slide in the sliding cavity along with the gradual increase of the gas in the first cavity; in the sliding process of the transmission plate, the transmission plate and the sliding plate have attractive force, so that the transmission plate can drive the sliding plate close to the transmission plate to move in the sliding process, and the sliding plate can drive the connecting rod and the baffle to move.
In a second aspect, the application provides an ecological environment groundwater monitoring and sampling method, which adopts the following technical scheme:
an ecological environment groundwater monitoring and sampling method comprises the following steps:
s1, dividing areas: dividing water in a dewatering well into a pollution area, a buffer area and a detection area from top to bottom;
s2, sealing and isolating: the positioning assembly is placed in a dewatering well, so that the sealing element is positioned at the junction of the buffer area and the detection area, and the buffer area is isolated from the detection area through the sealing element;
s3, sewage extraction: extracting water in the pollution area and the buffer area to the outside;
s4, communicating water stably: the buffer area is communicated with the detection area, and after the water level in the dewatering well is stable, the water in the dewatering well is sampled and detected through the sampling device.
By adopting the technical scheme, the water sample at the top of the dewatering well is in direct contact with the outside for a long time, so that the outside impurities can possibly enter the water sample at the top of the dewatering well, and the detection result after water quality sampling can be affected; in order to enable the water sample detection result to be more accurate, the water sample in the polluted area at the top of the dewatering well can be firstly discharged to the outside, so that the accuracy of the water sample detection result after water sampling is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through setting up locating component, the constructor drives sampling component through the suspension part and gets into in the precipitation well, adjusts the position of sampling component in the precipitation well through locating component afterwards for sampling component reaches actual water level depth, and after sampling component position adjustment is accomplished, fixes sampling component's position through locating component, is convenient for sampling component carries out accurate sample in the precipitation well, thereby has improved the accuracy of groundwater sampling;
2. by discharging the water in the pollution area and the buffer area in the dewatering well, the detection result after water quality sampling is prevented from being influenced by external impurities, and the accuracy of the detection result after water quality sampling is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a cross-sectional view of an embodiment of the present application;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
fig. 5 is a partial cross-sectional view of an embodiment of the present application for showing a drive spring.
Reference numerals illustrate:
1. dewatering well;
2. a work table;
3. a moving assembly; 31. a bracket; 32. a universal wheel;
4. an extraction assembly; 41. a water pumping pipe; 42. a pump machine;
5. a positioning assembly; 51. a mounting plate; 52. a seal;
6. a transmission assembly; 61. a fixing member; 611. a sliding chamber; 612. a chute; 613. a connecting groove; 62. a slide plate; 63. a transmission spring; 64. a connecting rod;
7. a sampling assembly; 71. sampling a sample piece; 711. a sampling groove; 712. a sampling hole; 72. a baffle;
8. a drive assembly; 81. an air pump; 82. an air supply pipe; 83. a communicating pipe; 831. a two-way overflow valve; 84. an elastic rope; 85. a fixing plate; 86. a drive plate; 87. a first chamber; 88. a second chamber;
9. and a winding machine.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses an ecological environment groundwater monitoring sampling device.
Referring to fig. 1 and 2, an ecological environment groundwater monitoring sampling device includes a workbench 2, a sampling assembly 7 for sampling water quality in a dewatering well 1, a suspension member arranged on the workbench 2 and used for driving the sampling assembly 7 into the dewatering well 1, and a positioning assembly 5 arranged on the sampling assembly 7 and used for adjusting and fixing the position of the sampling assembly 7.
When water quality sampling is carried out, firstly, the workbench 2 is moved to the upper part of the dewatering well 1, then the sampling assembly 7 and the positioning assembly 5 are moved into the dewatering well 1 through the suspension piece, after the sampling assembly 7 reaches the sampling depth, the positioning assembly 5 is started, the positioning assembly 5 is used for adjusting the position of the sampling assembly 7 in the dewatering well 1, after the position adjustment of the sampling assembly 7 is completed, the positioning assembly 5 is used for fixing the position of the sampling assembly 7, and then the sampling assembly 7 is started to sample in the dewatering well 1.
Referring to fig. 2 and 3, the table 2 is horizontally arranged, and the cross section of the table 2 is rectangular; the workbench 2 is provided with a moving assembly 3, the moving assembly 3 comprises four brackets 31 and universal wheels 32, the four brackets 31 are respectively and vertically arranged at the top corners of the bottom surface of the workbench 2, and the brackets 31 are fixedly connected with the workbench 2; the universal wheels 32 are arranged in four and are in one-to-one correspondence with the brackets 31, the universal wheels 32 are fixedly arranged on the end face of the bottom end of the brackets 31, and the universal wheels 32 have a self-locking function.
Referring to fig. 2 and 4, the suspension is a hoist 9, and the hoist 9 is mounted on the table 2; the positioning assembly 5 comprises a mounting plate 51 and a sealing piece 52, wherein the mounting plate 51 is coaxially arranged in the dewatering well 1 and fixedly connected with a traction rope of the winch 9; the sealing element 52 is made of flexible materials, the inside of the sealing element 52 is of a cavity structure, the cross section of the sealing element 52 is circular, the sealing element 52 is coaxially sleeved on the mounting plate 51, and one side, close to the mounting plate 51, of the sealing element 52 is fixedly connected with the mounting plate 51; the worktable 2 is provided with a driving assembly 8, and the driving assembly 8 is used for filling the inside of the sealing piece 52 with gas.
When water quality sampling is carried out, firstly, a constructor pushes the workbench 2 to move through the universal wheel 32, and after the workbench 2 reaches a designated position, the universal wheel 32 is self-locked, so that the position of the workbench 2 is fixed; then starting the winch 9, and suspending the mounting plate 51 and the sealing piece 52 into the dewatering well 1 through the winch 9; when the sealing element 52 reaches the designated position, the winch 9 stops working, then the driving assembly 8 is started, the driving assembly 8 fills gas into the sealing element 52, the sealing element 52 is gradually expanded, and finally the sealing element 52 is tightly abutted against the inner wall of the dewatering well 1, so that the position adjustment and fixation of the mounting plate 51 and the sampling assembly 7 are completed.
Referring to fig. 2 and 3, the sampling assembly 7 is disposed below the mounting plate 51; the sampling assembly 7 comprises a sampling piece 71 and a baffle 72, wherein the sampling piece 71 is coaxially arranged with the mounting plate 51 and is indirectly connected with the mounting plate 51; sampling groove 711 is formed in sampling member 71 along the circumferential direction of sampling member, and sampling grooves 711 are formed in a plurality of numbers along the circumferential direction of sampling member 71; the side wall of the sampling piece 71 is provided with a plurality of sampling holes 712, and the sampling holes 712 are in one-to-one correspondence with the sampling grooves 711 and are communicated with the interiors of the corresponding sampling grooves 711; the baffles 72 are provided with a plurality of and correspond to the sampling grooves 711 one by one, the baffles 72 are vertically arranged in the corresponding sampling grooves 711, the cover is arranged at the communication position of the sampling grooves 711 and the sampling holes 712, and the baffles 72 are in sliding connection with the sampling pieces 71 along the circumferential direction of the sampling pieces 71.
Referring to fig. 3 and 5, a transmission assembly 6 is arranged on the bottom surface of the mounting plate 51, the transmission assembly 6 comprises a fixing piece 61, a sliding plate 62, a transmission spring 63 and a connecting rod 64, and the fixing piece 61 is coaxially arranged between the mounting plate 51 and the sampling piece 71 and is fixedly connected with the mounting plate 51 and the sampling piece 71; the fixing piece 61 is internally provided with a sliding cavity 611, and the cross section of the sliding cavity 611 is circular and is coaxially arranged with the fixing piece 61; a chute 612 is formed in the outer side wall of the sliding cavity 611 along the circumferential direction of the sliding cavity, and the chute 612 is positioned between the sliding cavity 611 and the precipitation well 1; the sliding grooves 612 are circumferentially arranged along the sliding cavity 611 and correspond to the sampling grooves 711 one by one; the side wall of the sliding groove 612, which is close to one side of the sampling piece 71, is provided with a connecting groove 613 along the vertical direction, and the connecting groove 613 corresponds to the sampling groove 711 one by one and is communicated with the corresponding sampling groove 711; the sliding plates 62 are provided with a plurality of sliding grooves 612 in one-to-one correspondence, the sliding plates 62 are slidably arranged in the corresponding sliding grooves 612 along the length direction of the sliding grooves 612, and the sliding plates 62 are always covered at the communication positions of the connecting grooves 613 and the sliding grooves 612; the transmission springs 63 are arranged in a plurality and are in one-to-one correspondence with the sliding grooves 612, the length direction of the transmission springs 63 is the same as the length direction of the sliding grooves 612, and the transmission springs 63 are fixedly arranged between the side walls of the corresponding sliding grooves 612 and the corresponding sliding plates 62; the connecting rods 64 are provided with a plurality of connecting grooves 613 in one-to-one correspondence, the connecting rods 64 are vertically arranged in the corresponding connecting grooves 613, the top ends of the connecting rods 64 are fixedly connected with the corresponding sliding plates 62, and the bottom ends of the connecting rods 64 are fixedly connected with the corresponding baffle plates 72; the baffle 72 is always covered at the communication position of the corresponding connecting groove 613 and the sampling groove 711.
In order to avoid deformation of the transmission spring 63, a support rod parallel to the length of the chute 612 may be inserted into the transmission spring 63, and the support rod has a telescopic rod structure.
Referring to fig. 2 and 4, the driving assembly 8 includes an air pump 81, an air supply pipe 82, a communication pipe 83, an elastic string 84, a fixing plate 85, a driving plate 86, wherein: the air pump 81 is arranged on the air supply pipe 82, and the air pump 81 is fixedly connected with the bottom surface of the workbench 2; one end of the air supply pipe 82 is communicated with the outside, the other end of the air supply pipe 82 is sequentially inserted on the mounting plate 51 and the sealing piece 52 and is communicated with the inside of the sealing piece 52, and the air supply pipe 82 is of a corrugated pipe structure; the communicating pipe 83 is preset in the mounting plate 51, the communicating pipe 83 is vertically arranged, the top end of the communicating pipe 83 is inserted on the air supply pipe 82 and communicated with the interior of the air supply pipe 82, and the bottom end of the communicating pipe 83 is inserted on the fixing piece 61 and communicated with the interior of the sliding cavity 611; the fixed plate 85 is vertically arranged in the sliding cavity 611 and is fixedly connected with the side wall of the sliding cavity 611; the transmission plate 86 is slidably arranged in the sliding cavity 611 along the length direction of the sliding cavity 611, and mutual attractive force exists between the transmission plate 86 and the sliding plate 62; the fixed plate 85 and the transmission plate 86 divide the sliding cavity 611 into a first cavity 87 and a second cavity 88 isolated from each other, and the communicating pipe 83 is always positioned in the first cavity 87 at the communicating position of the sliding cavity 611; the elastic cord 84 is fixedly disposed between the fixed plate 85 and the driving plate 86, and the elastic cord 84 is disposed in the first chamber 87.
After the position of the sampling member 71 is fixed, the power of the air pump 81 is adjusted, so that the air pressure in the communicating pipe 83 is increased, and then the external air enters the first chamber 87 through the air supply pipe 82 and the communicating pipe 83, and further the air in the first chamber 87 pushes the transmission plate 86 to slide in the sliding cavity 611; because of the mutual attraction between the transmission plate 86 and the sliding plate 62 close to the transmission plate 86, when the transmission plate 86 approaches one of the sliding plates 62 in the sliding process of the transmission plate 86, the transmission plate 86 drives the corresponding sliding plate 62 to slide through the mutual attraction between the transmission plate 86 and the sliding plate; the sliding plate 62 presses the driving spring 63 in the sliding process and drives the connecting rod 64 and the baffle 72 to move, so that water in the dewatering well 1 can enter the sampling groove 711 through the sampling hole 712.
In the process that the slide plate 62 extrudes the transmission spring 63, after the transmission plate 86 is far away from the slide plate 62, the slide plate 62 reversely slides under the action of the transmission spring 63, so that the slide plate 62 drives the corresponding connecting rod 64 and the baffle 72 to slide, and further water in the dewatering well 1 cannot enter the sampling groove 711, and the water sample in the sampling groove 711 keeps integrity.
When the water quality sampling is completed, the power of the air pump 81 is regulated, so that the transmission plate 86 slides reversely under the action of the stretched elastic rope 84, and the air in the first chamber 87 is extruded by the transmission plate 86; the gas in the first chamber 87 is pressurized by the pressing action of the transmission plate 86, and when the gas pressure in the first chamber 87 increases to the activation pressure of the double relief valve 831, the gas in the first chamber 87 is discharged through the communication pipe 83, the gas supply pipe 82.
Referring to fig. 1 and 2, a pumping assembly 4 is provided on the table 2, the pumping assembly 4 includes a pumping pipe 41 and a pump 42, wherein the pump 42 is installed on the pumping pipe 41 and fixedly provided on the bottom surface of the table 2; one end of the water pumping pipe 41 is communicated with an external reservoir, and the other end is fixedly arranged on the top surface of the mounting plate 51 and is used for pumping water in the dewatering well 1.
When the sealing element 52 is tightly abutted against the inner wall of the dewatering well 1, the pump 42 can be started, and the pump 42 pumps water above the sealing element 52 in the dewatering well 1 to the outside through the water pumping pipe 41.
The implementation principle of the ecological environment groundwater monitoring sampling device provided by the embodiment of the application is as follows: when water quality sampling is carried out, firstly, the workbench 2 is moved to the dewatering well 1; then starting the winch 9, and suspending the mounting plate 51 and the sealing piece 52 into the dewatering well 1 through the winch 9; when the sealing piece 52 reaches a designated position, the winch 9 stops working, then the driving assembly 8 is started, and the driving assembly 8 fills gas into the sealing piece 52, so that the sealing piece 52 is gradually expanded, and finally the sealing piece 52 is tightly abutted against the inner wall of the dewatering well 1;
when the sealing member 52 is tightly abutted against the inner wall of the dewatering well 1, the user can adjust the power of the air pump 81, so that the air pressure in the communicating pipe 83 is increased, and then the external air enters the first chamber 87 through the air supply pipe 82 and the communicating pipe 83, and then the air in the first chamber 87 pushes the transmission plate 86 to slide in the sliding cavity 611; because of the mutual attraction between the transmission plate 86 and the sliding plate 62 close to the transmission plate 86, when the transmission plate 86 approaches one of the sliding plates 62 in the sliding process of the transmission plate 86, the transmission plate 86 drives the corresponding sliding plate 62 to slide through the mutual attraction between the transmission plate 86 and the sliding plate; the sliding plate 62 extrudes the driving spring 63 in the sliding process and drives the connecting rod 64 and the baffle 72 to move, so that water in the dewatering well 1 can enter the sampling groove 711 through the sampling hole 712;
in the process that the slide plate 62 extrudes the transmission spring 63, after the transmission plate 86 is far away from the slide plate 62, the slide plate 62 reversely slides under the action of the transmission spring 63, so that the slide plate 62 drives the corresponding connecting rod 64 and the baffle 72 to slide, and further water in the dewatering well 1 cannot enter the sampling groove 711, and the water sample in the sampling groove 711 keeps integrity.
The embodiment of the application discloses an ecological environment groundwater monitoring and sampling method.
An ecological environment groundwater monitoring and sampling method comprises the following steps:
s1, dividing areas: dividing water in the dewatering well 1 into a pollution area, a buffer area and a detection area from top to bottom;
s2, sealing and isolating: the positioning assembly 5 is placed in the dewatering well 1, so that the sealing element 52 is positioned at the junction of the buffer area and the detection area, and the buffer area is isolated from the detection area through the sealing element 52;
s3, sewage extraction: extracting water in the pollution area and the buffer area to the outside;
s4, communicating water stably: the buffer area is communicated with the detection area, and when the water level in the precipitation well 1 is stable, the water in the precipitation well 1 is sampled and detected through the sampling device.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. An ecological environment groundwater monitoring sampling device for detect groundwater in precipitation well (1), its characterized in that includes:
a work table (2);
the sampling assembly (7) is internally provided with a cavity which is used for storing underground water and can be communicated with the outside;
the suspension piece is arranged on the workbench (2) and is used for driving the sampling assembly (7) into the dewatering well (1);
the positioning assembly (5) is arranged on the sampling assembly (7) and is used for adjusting and fixing the position of the sampling assembly (7); the positioning assembly (5) comprises a mounting plate (51) coaxially arranged in the dewatering well (1) and connected with the sampling assembly (7), and a sealing piece (52) coaxially sleeved on the mounting plate (51) and used for being completely abutted against the inner wall of the dewatering well (1), wherein the sealing piece (52) is made of flexible materials, and a cavity structure is formed in the sealing piece (52);
and the driving assembly (8) is arranged on the workbench (2) and is used for filling the sealing element (52) with gas.
2. The ecological environment groundwater monitoring and sampling device according to claim 1, wherein the sampling assembly (7) comprises a baffle plate (72) and a sampling piece (71), a sampling groove (711) for storing groundwater is formed in the sampling piece (71), and a sampling hole (712) communicated with the outside is formed in the inner wall of the sampling groove (711); the baffle (72) is positioned in the sampling groove (711) and is covered at the communication position of the sampling groove (711) and the sampling hole (712), and the baffle (72) is in sliding connection with the sampling piece (71) along the circumferential direction of the mounting plate (51); the sampling piece (71) is provided with a transmission assembly (6) for driving the baffle plate (72) to circumferentially slide along the mounting plate (51) under the driving of the driving assembly (8), and the sampling piece (71) is connected with the mounting plate (51) through the transmission assembly (6).
3. An ecological environment groundwater monitoring sampling device according to claim 2, characterized in that the sampling slots (711) are circumferentially arranged along the mounting plate (51); the baffle plates (72) are arranged in a plurality and are in one-to-one correspondence with the sampling grooves (711).
4. An ecological environment groundwater monitoring sampling device according to claim 3, characterized in that the transmission assembly (6) comprises:
the fixing piece (61) is internally provided with a sliding cavity (611) which is coaxially arranged with the precipitation well (1), the outer side wall of the sliding cavity (611) is circumferentially provided with sliding grooves (612), the sliding grooves (612) are circumferentially provided with a plurality of sliding grooves (612) along the sliding cavity (611), and the sliding grooves (612) are in one-to-one correspondence with the sampling grooves (711); a connecting groove (613) communicated with the corresponding sampling groove (711) is formed in the side wall of the sliding groove (612), and the baffle (72) is always covered at the communicating position of the corresponding sampling groove (711) and the connecting groove (613);
the sliding plates (62) are arranged in a plurality and are in one-to-one correspondence with the sliding grooves (612), the sliding plates (62) are arranged in the corresponding sliding grooves (612) in a sliding manner along the length direction of the sliding grooves (612), and the sliding plates (62) are always covered at the positions where the corresponding connecting grooves (613) are communicated with the sliding grooves (612); the driving assembly (8) is used for sequentially driving the sliding plates (62) to slide in the corresponding sliding grooves (612);
the transmission springs (63) are arranged in a plurality and uniformly correspond to the sliding grooves (612) and the sliding plates (62), the transmission springs (63) are positioned in the corresponding sliding grooves (612) and fixedly arranged between the sliding plates (62) and the side walls of the sliding grooves (612) along the length direction of the sliding grooves (612), and the transmission springs (63) are used for driving the sliding plates (62) to slide in the sliding grooves (612);
the connecting rods (64) are arranged in a plurality and uniformly correspond to the sliding plates (62), the baffles (72) and the connecting grooves (613), and the connecting rods (64) are arranged in the corresponding connecting grooves (613) and are fixedly connected with the corresponding sliding plates (62) and the corresponding baffles (72).
5. An ecological environment groundwater monitoring sampling device according to claim 4, characterized in that the driving assembly (8) comprises:
one end of the air supply pipe (82) is communicated with the outside, the other end of the air supply pipe is communicated with the inside of the sealing piece (52), and the air supply pipe (82) is of a corrugated pipe structure;
the air pump (81) is arranged on the air supply pipe (82) and is fixedly connected with the workbench (2).
6. An ecological environment groundwater monitoring sampling device according to claim 5, characterized in that the driving assembly (8) further comprises:
the fixed plate (85) is positioned in the sliding cavity (611) and is fixedly connected with the fixed piece (61);
the transmission plate (86) is arranged in the sliding cavity (611) in a sliding manner along the length direction of the sliding cavity (611), and attractive force exists between the transmission plate (86) and the sliding plate (62); the sliding cavity (611) is divided into a first chamber (87) and a second chamber (88) by the fixed plate (85) and the transmission plate (86);
a communicating pipe (83), one end of which is communicated with the air supply pipe (82) and the other end of which is communicated with the first chamber (87), wherein a two-way overflow valve (831) is arranged on the communicating pipe (83);
an elastic rope (84) is fixedly arranged between the fixed plate (85) and the transmission plate (86) and is positioned in the first chamber (87).
7. An ecological environment groundwater monitoring and sampling method based on the ecological environment groundwater monitoring and sampling device according to any one of claims 1-6, characterized by comprising the following steps:
s1, dividing areas: dividing water in a dewatering well (1) into a pollution area, a buffer area and a detection area from top to bottom;
s2, sealing and isolating: the positioning assembly (5) is placed in the dewatering well (1) so that the sealing element (52) is positioned at the junction of the buffer area and the detection area, and the buffer area is isolated from the detection area through the sealing element (52);
s3, sewage extraction: extracting water in the pollution area and the buffer area to the outside;
s4, communicating water stably: the buffer area is communicated with the detection area, and after the water level in the dewatering well (1) is stable, the sampling device is used for sampling and detecting the water in the dewatering well (1).
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