Underground water sampling and real-time analysis equipment and use method thereof

Abstract

The invention provides underground water sampling and real-time analysis equipment and a use method thereof.The underground water sampling and real-time analysis equipment comprises a sampling mechanism and a detection mechanism, the sampling mechanism comprises a plurality of sampling cylinders, sampling rods are arranged in the sampling cylinders in a sliding mode, water inlets are formed in the outer sides of the sampling rods, through holes are formed in the centers of the two ends of the sampling cylinders, and the through holes are communicated with the sampling cylinders; a through hole is formed in the sampling cylinder, a first connecting plate and a second connecting plate are mounted at the two ends of the sampling rod respectively, the outer sides of the first connecting plate and the second connecting plate are attached to the wall surface of the through hole and slide in the through hole, and the sampling rod is arranged in the sampling cylinder, so that when the sampling cylinder is placed in underground water, the first connecting plate and the second connecting plate can block the through hole; only when the uppermost sampling rod is lifted and all the sampling rods ascend synchronously, underground water flows into the sampling cylinder from a gap between the second connecting plate and the through hole and then enters each sampling rod through the water inlet, and finally, all the sampling rods are taken out, so that layered sampling of the underground water can be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of groundwater detection, and in particular to a groundwater sampling and real-time analysis device and a use method thereof. Background Art

[0002] With the rapid development of economy and people's living standards, the demand for natural resources, especially water resources, is increasing. Therefore, the exploitation of groundwater is bound to increase. The increasing amount of exploitation has led to the prominent problem of groundwater pollution. According to relevant surveys, about 90% of groundwater has suffered varying degrees of pollution. Groundwater pollution not only affects its own water quality, but also has irreversible damage to soil and other underground resources. It will further affect human economic production, social life and even affect the survival and development of global organisms. Therefore, research on groundwater and groundwater pollution is urgent.

[0003] However, due to the heterogeneity of underground aquifers and other reasons, groundwater pollution is often stratified, that is, strata at different depths have different pollution characteristics. In order to describe the groundwater pollution in more detail and repair it accurately, it is necessary to conduct stratified sampling of the groundwater. For this purpose, we proposed a groundwater sampling and real-time analysis device and its use method. Summary of the invention

[0004] The embodiment of the present invention provides a groundwater sampling and real-time analysis device and a method for using the same.

[0005] In view of the above problems, the technical solution proposed by the present invention is:

[0006] A groundwater sampling and real-time analysis device comprises a sampling mechanism and a detection mechanism, wherein the sampling mechanism comprises a plurality of sampling tubes, wherein the plurality of sampling tubes are connected to each other, wherein sampling rods are slidably arranged inside the plurality of sampling tubes, wherein water inlets are arranged on the outer sides of the sampling rods, wherein the sampling rods are connected to each other, wherein through holes are arranged at the centers of both ends of the sampling tubes, wherein a first connecting plate and a second connecting plate are respectively installed on both ends of the sampling rods, and wherein the outer sides of the first connecting plate and the second connecting plate are in contact with the wall surface of the through hole and slide inside the through hole.

[0007] As a preferred technical solution of the present invention, the height of the first connecting plate is equal to the height of the through hole, the height of the second connecting plate is less than the height of the through hole, and the bottom height of the second connecting plate is higher than the bottom height of the through hole at the bottom end of the sampling tube.

[0008] As a preferred technical solution of the present invention, anti-slip sealing rings are installed on the outer sides of the first connecting plate and the second connecting plate.

[0009] As a preferred technical solution of the present invention, a one-way valve is connected to the outer side of the water inlet.

[0010] As a preferred technical solution of the present invention, a threaded rod is installed at the top center of the first connecting plate, a threaded sleeve is rotatably connected at the bottom center of the second connecting plate, and the threaded rod and the threaded sleeve are internally threadedly engaged.

[0011] As a preferred technical solution of the present invention, the outer side of the uppermost threaded rod in the sampling mechanism is also threadedly engaged with a fixing sleeve, and the outer side of the fixing sleeve is hinged with a hanging ring.

[0012] As a preferred technical solution of the present invention, the detection mechanism includes a detection platform, and a water quality monitor, a groundwater flow rate monitor, and a water thermometer are installed at the bottom of the detection platform. A waterproof cover is installed on the outside of the detection platform, and the wires of the water quality monitor, the groundwater flow rate monitor, and the water thermometer are located in the waterproof cover.

[0013] As a preferred technical solution of the present invention, a pair of first fixing blocks are installed on the top sides of the sampling tube and the detection table, and the outer sides of the pair of first fixing blocks are hinged with fixing strips, and the tops of the fixing strips are opened with fixing holes, and a pair of second fixing blocks are installed on the bottom side of the sampling tube, and a nut is installed on one side of the second fixing block, and the nut slides inside the fixing hole, and the internal thread of the nut is engaged with a screw, and the screw head of the screw squeezes the fixing strip.

[0014] In another aspect, the present invention provides a method for using a groundwater sampling and real-time analysis device, comprising the following steps:

[0015] S1, Groundwater Exploration: Field observation and mapping of groundwater and various geological phenomena related to it, and drilling operations at determined locations;

[0016] S2, equipment assembly: the length of the equipment is adjusted according to the groundwater depth and the distance between the groundwater and the ground obtained in step S1. Specifically, a number of sampling tubes and sampling rods are used to put the sampling rods into the sampling tubes through the through holes, and the top of the first connecting plate is ensured to be flush with the top of the sampling tube. The adjacent sampling rods are fixed together using threaded rods and threaded sleeves, and then the fixing bars are rotated to make the fixing holes fit on the nuts, and finally the screws are tightened to fix the adjacent sampling tubes together. The length of the assembled device is greater than the sum of the groundwater depth and the distance between the groundwater and the ground.

[0017] S3, groundwater sampling: placing the device obtained in step S2 into the borehole in step S1, using a probe to assist the placement of the device in the process of placing the device into the groundwater, and when the device is completely sunk into the groundwater, hanging the hanging ring on the driving end of the driving device, using the driving device to lift up a plurality of sampling rods, and the groundwater now flows into the sampling tube from the gap between the second connecting plate and the through hole, and then enters each sampling rod through the water inlet, and finally all the sampling rods are taken out;

[0018] S4, groundwater monitoring: The cables of the water quality monitor, groundwater flow rate monitor, and water thermometer are pre-connected to the devices on the ground and wrapped with waterproof covers. The water quality monitor, groundwater flow rate monitor, and water thermometer can monitor the water quality, water flow, and water temperature of the groundwater in real time and transmit the data to the devices on the ground through cables.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By arranging the sampling rod inside the sampling tube, when the sampling tube is placed in groundwater, the first connecting plate and the second connecting plate will block the through hole. Only when the uppermost sampling rod is lifted so that all the sampling rods rise synchronously, the groundwater will flow into the sampling tube from the gap between the second connecting plate and the through hole, and then enter each sampling rod through the water inlet. Finally, all the sampling rods are taken out to complete the stratified sampling of groundwater.

[0021] 2. Each sampling tube and sampling rod are independently set, and each sampling tube and sampling rod can be fixed together in a relatively simple way, so as to achieve the purpose of freely adjusting the overall length of the device, so that the device can sample and detect groundwater at different depths and groundwater at different water depths.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the groundwater sampling and real-time analysis equipment disclosed in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the explosion structure of the groundwater sampling and real-time analysis device disclosed in an embodiment of the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of structure A in the middle;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of structure B in the middle;

[0027] Figure 5 It is a schematic cross-sectional structure diagram of a groundwater sampling and real-time analysis device disclosed in an embodiment of the present invention;

[0028] Figure 6 A method block diagram of a method for using the groundwater sampling and real-time analysis device disclosed in an embodiment of the present invention.

[0029] Figure numerals: 100, sampling mechanism; 1001, sampling tube; 1002, fixing sleeve; 1003, hanging ring; 1004, first fixing block; 1005, fixing bar; 1006, fixing hole; 1007, second fixing block; 1008, nut; 1009, screw; 1010, through hole; 1011, sampling rod; 1012, first connecting plate; 1013, second connecting plate; 1014, water inlet; 1015, threaded rod; 1016, threaded sleeve; 1017, rotating shaft; 200, testing mechanism; 2001, testing platform; 2002, water quality monitor; 2003, groundwater flow rate monitor; 2004, water thermometer; 2005, waterproof cover. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1, refer to the attached Figure 1 - Figure 5 As shown, a groundwater sampling and real-time analysis device includes a sampling mechanism 100 and a detection mechanism 200. The sampling mechanism 100 includes a plurality of sampling tubes 1001, which are interconnected. Sampling rods 1011 are slidably provided inside the plurality of sampling tubes 1001. Water inlets 1014 are provided on the outer sides of the sampling rods 1011. The sampling rods 1011 are interconnected. Through holes 1010 are provided at the centers of both ends of the sampling tubes 1001. A first connecting plate 1012 and a second connecting plate 1013 are respectively installed on both ends of the sampling rod 1011. The outer sides of the first connecting plate 1012 and the second connecting plate 1013 are in contact with the wall of the through hole 1010 and slide inside the through hole 1010.

[0032] In one embodiment of the present invention, further, the height of the first connecting plate 1012 is equal to the height of the through hole 1010, the height of the second connecting plate 1013 is less than the height of the through hole 1010, and the bottom height of the second connecting plate 1013 is higher than the bottom height of the through hole 1010 at the bottom end of the sampling tube 1001.

[0033] Specifically, after one end of the sampling rod 1011 is lifted, the second connecting plate 1013 and the through hole 1010 are separated, but the first connecting plate 1012 is still located in the through hole 1010. At this time, groundwater will flow into the sampling tube 1001 through the gap between the through hole 1010 and the second connecting plate 1013.

[0034] According to an embodiment of the present invention, further, anti-slip sealing rings are installed on the outer sides of the first connecting plate 1012 and the second connecting plate 1013.

[0035] Specifically, an anti-slip sealing ring is used to seal the first connecting plate 1012, the second connecting plate 1013 and the through hole 1010, and at the same time, the friction between the first connecting plate 1012, the second connecting plate 1013 and the through hole 1010 is increased, thereby increasing the difficulty of moving the sampling rod 1011.

[0036] As an embodiment of the present invention, further, a one-way valve is connected to the outer side of the water inlet 1014 .

[0037] Specifically, a one-way valve is used to prevent the sample water in the sampling rod 1011 from flowing out.

[0038] In one embodiment of the present invention, a threaded rod 1015 is further installed at the top center of the first connecting plate 1012, a threaded sleeve 1016 is rotatably connected to the bottom center of the second connecting plate 1013, and the internal threads of the threaded rod 1015 and the threaded sleeve 1016 are engaged with each other.

[0039] In one embodiment of the present invention, further, the outer side of the topmost threaded rod 1015 in the sampling mechanism 100 is threadedly engaged with a fixing sleeve 1002 , and the outer side of the fixing sleeve 1002 is hinged with a hanging ring 1003 .

[0040] In one embodiment of the present invention, further, the detection mechanism 200 includes a detection platform 2001, and a water quality monitor 2002, a groundwater flow rate monitor 2003, and a water thermometer 2004 are installed at the bottom of the detection platform 2001, and a waterproof cover 2005 is installed on the outer side of the detection platform 2001, and the wires of the water quality monitor 2002, the groundwater flow rate monitor 2003, and the water thermometer 2004 are located in the waterproof cover 2005.

[0041] An embodiment of the present invention is further implemented. A pair of first fixing blocks 1004 are installed on the top sides of the sampling tube 1001 and the testing platform 2001. A fixing strip 1005 is hinged on the outer sides of the pair of first fixing blocks 1004. A fixing hole 1006 is opened on the top of the fixing strip 1005. A pair of second fixing blocks 1007 are installed on the bottom side of the sampling tube 1001. A nut 1008 is installed on one side of the second fixing block 1007. The nut 1008 slides inside the fixing hole 1006. The internal thread of the nut 1008 is engaged with a screw 1009, and the screw head of the screw 1009 squeezes the fixing strip 1005.

[0042] Specifically, a fixing groove is provided at a corner of the first fixing block 1004, and the internal rotation in the fixing groove is connected to the rotating shaft 1017, and the bottom end of the fixing bar 1005 is installed on the rotating shaft 1017, so that it can make radial rotation in the fixing groove, so that the fixing hole 1006 is rotated to the outside of the nut 1008. At this time, the screw 1009 is turned into the nut 1008, so that the screw head can squeeze the outside of the fixing bar 1005, thereby completing the fixation of the fixing bar 1005, so as to achieve the purpose of fixing a pair of sampling tubes 1001 together.

[0043] Example 2, refer to the attached Figure 6 As shown, an embodiment of the present invention further provides a method for using a groundwater sampling and real-time analysis device, comprising the following steps:

[0044] S1, Groundwater Exploration: Field observation and mapping of groundwater and various geological phenomena related to it, and drilling operations at determined locations;

[0045] S2, equipment assembly: the length of the equipment is adjusted according to the groundwater depth and the distance between the groundwater and the ground obtained in step S1. Specifically, a number of sampling tubes 1001 and sampling rods 1011 are used to put the sampling rods 1011 into the sampling tube 1001 through the through hole 1010, and ensure that the top of the first connecting plate 1012 is flush with the top of the sampling tube 1001. The threaded rods 1015 and the threaded sleeves 1016 are used to fix the adjacent sampling rods 1010 together, and then the fixing bar 1005 is rotated to make the fixing hole 1006 fit on the nut 1008, and finally the screws 1009 are screwed on to fix the adjacent sampling tubes 1001 together. The length of the assembled device is greater than the sum of the groundwater depth and the distance between the groundwater and the ground.

[0046] S3, groundwater sampling: put the device obtained in step S2 into the borehole in step S1, and use a probe to assist the placement of the device in the process of putting the device into the groundwater. When the device is completely sunk into the groundwater, hang the hanging ring 1003 on the driving end of the driving device, and use the driving device to lift up a plurality of sampling rods 1011. At this time, the groundwater flows into the sampling tube 1001 from the gap between the second connecting plate 1013 and the through hole 1010, and then enters each sampling rod 1011 through the water inlet 1014. Finally, all the sampling rods 1011 are taken out;

[0047] S4, groundwater monitoring: the cables of the water quality monitor 2002, the groundwater flow rate monitor 2003 and the water thermometer 2004 are pre-connected to the devices on the ground, and the cables are wrapped with a waterproof cover 2005. The water quality monitor 2002, the groundwater flow rate monitor 2003 and the water thermometer 2004 can monitor the water quality, water flow and water temperature of the groundwater in real time, and transmit the data to the devices on the ground through cables.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A groundwater sampling and real-time analysis device, characterized in that: The invention comprises a sampling mechanism (100) and a detection mechanism (200), wherein the sampling mechanism (100) comprises a plurality of sampling tubes (1001), wherein the plurality of sampling tubes (1001) are connected to each other, wherein sampling rods (1011) are slidably arranged inside the plurality of sampling tubes (1001), wherein the outer sides of the sampling rods (1011) are provided with water inlets (1014), wherein the sampling rods (1011) are connected to each other, wherein through holes (1010) are arranged at the centers of both ends of the sampling tubes (1001), wherein a first connecting plate (1012) and a second connecting plate (1013) are respectively installed at both ends of the sampling rods (1011), and wherein the outer sides of the first connecting plate (1012) and the second connecting plate (1013) are in contact with the wall surface of the through hole (1010) and slide inside the through hole (1010).

2. A groundwater sampling and real-time analysis device according to claim 1, characterized in that: The height of the first connecting plate (1012) is equal to the height of the through hole (1010), the height of the second connecting plate (1013) is less than the height of the through hole (1010), and the bottom height of the second connecting plate (1013) is higher than the bottom height of the through hole (1010) at the bottom end of the sampling tube (1001).

3. A groundwater sampling and real-time analysis device according to claim 1, characterized in that: Anti-slip sealing rings are installed on the outer sides of the first connecting plate (1012) and the second connecting plate (1013).

4. The groundwater sampling and real-time analysis equipment according to claim 1, characterized in that: The outer side of the water inlet (1014) is connected to a one-way valve.

5. The groundwater sampling and real-time analysis equipment according to claim 1, characterized in that: A threaded rod (1015) is installed at the top center of the first connecting plate (1012), and a threaded sleeve (1016) is rotatably connected to the bottom center of the second connecting plate (1013), and the internal threads of the threaded rod (1015) and the threaded sleeve (1016) are engaged with each other.

6. A groundwater sampling and real-time analysis device according to claim 5, characterized in that: The outer side of the uppermost threaded rod (1015) in the sampling mechanism (100) is also threadedly engaged with a fixing sleeve (1002), and the outer side of the fixing sleeve (1002) is hinged with a hanging ring (1003).

7. The groundwater sampling and real-time analysis equipment according to claim 1, characterized in that: The detection mechanism (200) comprises a detection platform (2001), a water quality monitor (2002), a groundwater flow rate monitor (2003), and a water temperature meter (2004) are installed at the bottom of the detection platform (2001), a waterproof cover (2005) is installed on the outside of the detection platform (2001), and the wires of the water quality monitor (2002), the groundwater flow rate monitor (2003), and the water temperature meter (2004) are located in the waterproof cover (2005).

8. The groundwater sampling and real-time analysis equipment according to claim 7, characterized in that: A pair of first fixing blocks (1004) are installed on the top sides of the sampling tube (1001) and the detection platform (2001), and a fixing strip (1005) is hinged on the outer sides of the pair of first fixing blocks (1004), and a fixing hole (1006) is opened on the top of each of the fixing strips (1005). A pair of second fixing blocks (1007) are installed on the bottom side of the sampling tube (1001), and a nut (1008) is installed on one side of each of the second fixing blocks (1007). The nut (1008) slides inside the fixing hole (1006), and the internal thread of the nut (1008) is engaged with a screw (1009), and the screw head of the screw (1009) squeezes the fixing strip (1005).

9. A groundwater sampling and real-time analysis device, applied to the method for using the groundwater sampling and real-time analysis device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, Groundwater Exploration: Field observation and mapping of groundwater and various geological phenomena related to it, and drilling operations at determined locations; S2, equipment assembly: the length of the equipment is adjusted according to the groundwater depth and the distance between the groundwater and the ground obtained in step S1. Specifically, a number of sampling tubes (1001) and sampling rods (1011) are used to place the sampling rods (1011) into the sampling tube (1001) through the through hole (1010), and the top of the first connecting plate (1012) is ensured to be flush with the top of the sampling tube (1001). The adjacent sampling rods (1010) are fixed together using the threaded rod (1015) and the threaded sleeve (1016). Subsequently, the fixing bar (1005) is rotated so that the fixing hole (1006) is sleeved on the nut (1008). Finally, the screw (1009) is screwed on so that the adjacent sampling tubes (1001) are fixed together. The length of the assembled device is greater than the sum of the groundwater depth and the distance between the groundwater and the ground. S3, groundwater sampling: the device obtained in step S2 is placed into the borehole in step S1. During the process of placing the device into the groundwater, a probe is used to assist the placement of the device. When the device is completely sunk into the groundwater, a hanging ring (1003) is hung on the driving end of a driving device, and a plurality of sampling rods (1011) are lifted up by the driving device. At this time, the groundwater flows into the sampling tube (1001) from the gap between the second connecting plate (1013) and the through hole (1010), and then enters each sampling rod (1011) through the water inlet (1014). Finally, all the sampling rods (1011) are taken out; S4, groundwater monitoring: The cables of the water quality monitor (2002), the groundwater flow rate monitor (2003), and the water temperature meter (2004) are pre-connected to the devices on the ground, and the cables are wrapped with a waterproof cover (2005). The water quality monitor (2002), the groundwater flow rate monitor (2003), and the water temperature meter (2004) can monitor the water quality, water flow, and water temperature of the groundwater in real time, and transmit the data to the devices on the ground through the cables.

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