CN219348293U - Groundwater sampling device - Google Patents
Groundwater sampling device Download PDFInfo
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- CN219348293U CN219348293U CN202223577530.1U CN202223577530U CN219348293U CN 219348293 U CN219348293 U CN 219348293U CN 202223577530 U CN202223577530 U CN 202223577530U CN 219348293 U CN219348293 U CN 219348293U
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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
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- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model provides groundwater sampling equipment, which comprises: the collecting chamber is used for storing underground water; the first one-way valve is arranged in the collection cavity, and the outlet end of the first one-way valve is communicated with the sample box; the pneumatic pressurizing assembly comprises a first pressurizing pipe fitting, one end of the first pressurizing pipe fitting is communicated with the air source, and the other end of the first pressurizing pipe fitting stretches into the collecting cavity to pressurize the collecting cavity, so that underground water in the collecting cavity flows out through the first one-way valve. The utility model solves the problem of complex operation in the groundwater sampling process in the prior art.
Description
Technical Field
The utility model relates to the technical field of groundwater sampling, in particular to groundwater sampling equipment.
Background
In geological exploration, in order to know the water quality state of underground water, it is necessary to sample and monitor underground water in drilling, that is, underground water samples are collected by using underground water monitoring wells and equipment, and physicochemical tests are performed on the samples.
In existing groundwater sampling devices, stainless steel submersible pumps are typically lowered from the well casing inlet to the bottom of the well through a hanging pipeline, power is supplied to the pump through a generator, the well casing is inserted into a borehole, and then backfilled with sand to form a sand filter casing around the well casing. Well casing is typically made of plastic tubing (e.g., polyvinyl chloride (PVC) tubing) having a plurality of screen cuts through the wall surface in communication with the well casing lumen into which groundwater can enter; the well casing inlet is formed in a concrete dome that accommodates the connection ends of various pipes on the surface.
However, with stainless steel submersible pumps, each sample requires a power cable and a purge/sampling hose, which is lowered into the well casing through a suspension cable, through a screen cut in the well casing, and down-hole to take groundwater. Thereafter, retrieving the pump to the surface; it must be cleaned before it can be reused. Cleaning requires cleaning the inside and outside of all equipment with TSP (trisodium phosphate) solution, followed by rinsing with deionized or distilled water multiple times to obtain accurate sampling results. The sampling mode is high in sampling cost, complex in operation and inconvenient to use.
Disclosure of Invention
The utility model mainly aims to provide groundwater sampling equipment so as to solve the problem that the groundwater sampling process in the prior art is complex to operate.
In order to achieve the above object, the present utility model provides an underground water sampling apparatus comprising: the collecting chamber is used for storing underground water; the first one-way valve is arranged in the collection cavity, and the outlet end of the first one-way valve is communicated with the sample box; the pneumatic pressurizing assembly comprises a first pressurizing pipe fitting, one end of the first pressurizing pipe fitting is communicated with the air source, and the other end of the first pressurizing pipe fitting stretches into the collecting cavity to pressurize the collecting cavity, so that underground water in the collecting cavity flows out through the first one-way valve.
Further, a first through hole is formed in the side wall of the collecting cavity, and the first pressurizing pipe fitting extends into the collecting cavity through the first through hole.
Further, the groundwater sampling device further comprises: the casing is provided with a first overflow notch, the collecting cavity is arranged below the casing and is communicated with the casing, and groundwater flows into the collecting cavity through the casing.
Further, the groundwater sampling device further comprises: the second check valve is arranged between the sleeve and the collecting cavity and is respectively communicated with the sleeve and the collecting cavity, and underground water in the sleeve flows into the collecting cavity through the second check valve.
Further, the pneumatic pressurizing assembly further comprises: and one end of the second pressurizing pipe fitting is communicated with the air source, and the other end of the second pressurizing pipe fitting stretches into the sleeve so as to pressurize the underground water in the sleeve to flow into the collecting cavity.
Further, a second through hole is formed in the side wall of the sleeve, and the second pressurizing pipe fitting extends into the sleeve through the second through hole.
Further, the groundwater sampling device further comprises: the liquid storage chamber is arranged below the collecting chamber, a second overflow notch is formed in the inner wall of the liquid storage chamber, groundwater flows into the liquid storage chamber through the second overflow notch, and groundwater in the liquid storage chamber overflows into the collecting chamber.
Further, the groundwater sampling device further comprises: the third one-way valve is arranged between the liquid storage chamber and the collecting chamber, and is respectively communicated with the liquid storage chamber and the collecting chamber, and underground water in the liquid storage chamber overflows into the collecting chamber through the third one-way valve.
Further, the groundwater sampling device further comprises: one end of the collection pipe fitting is communicated with the first one-way valve, and the other end of the collection pipe fitting is communicated with the sample box.
Further, a third through hole is formed in the side wall of the collecting cavity, and at least part of the collecting pipe fitting penetrates through the third through hole and is communicated with the first one-way valve.
By applying the technical scheme of the utility model, the underground water sampling equipment comprises a collecting cavity, a first one-way valve and a pneumatic pressurizing assembly, wherein the collecting cavity is used for storing underground water; the first one-way valve is arranged in the collection cavity, and the outlet end of the first one-way valve is communicated with the sample box; the pneumatic pressurizing assembly comprises a first pressurizing pipe fitting, one end of the first pressurizing pipe fitting is communicated with the air source, and the other end of the first pressurizing pipe fitting stretches into the collecting cavity to pressurize the collecting cavity, so that groundwater in the collecting cavity flows out through the first one-way valve. In the actual operation process, the first pressurizing pipe fitting is buried in backfill sand around the drilling hole, and the first pressurizing pipe fitting is used for pressurizing the inside of the collecting cavity, so that groundwater flows back into the sample box from the first one-way valve under the action of pressure, a groundwater sample is obtained, the setting operation is simple, the cost is low, and the problem that the groundwater sampling equipment in the prior art is complex in operation is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a schematic structural view of a first embodiment of an underground water sampling device according to the present utility model;
fig. 2 shows a schematic structural view of a second embodiment of an underground water sampling device according to the present utility model;
FIG. 3 shows a pressure mode state diagram of a control device of an groundwater sampling device according to the utility model;
FIG. 4 shows a state diagram of a vacuum mode of a control device of the groundwater sampling device according to the utility model;
fig. 5 shows a closed state diagram of a control device of the groundwater sampling device according to the utility model.
Wherein the above figures include the following reference numerals:
100. a sample box; 200. a gas source; 1. a collection chamber; 2. a first one-way valve; 3. a pneumatic pressurizing assembly; 30. a first pressurized tube; 4. a sleeve; 40. a first overflow cutout; 5. a second one-way valve; 31. a second pressurized tube; 6. a liquid storage chamber; 60. a second overflow cutout; 7. a third one-way valve; 8. collecting a pipe fitting;
9. a control device; 90. a pressure line; 91. a four-way valve; 92. a venturi unit; 93. a pressure/vacuum gauge; 94. a first switching valve; 95. a pressure regulator; 96. a three-way valve; 97. and a second switching valve.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 5, the present utility model provides an underground water sampling device, comprising: a collection chamber 1 for storing groundwater; the first one-way valve 2 is arranged in the collection chamber 1, and the outlet end of the first one-way valve 2 is communicated with the sample box 100; the pneumatic pressurizing assembly 3, the pneumatic pressurizing assembly 3 comprises a first pressurizing pipe fitting 30, one end of the first pressurizing pipe fitting 30 is communicated with the air source 200, and the other end of the first pressurizing pipe fitting 30 stretches into the collecting chamber 1 to pressurize the collecting chamber 1, so that groundwater in the collecting chamber 1 flows out through the first one-way valve 2.
The underground water sampling equipment provided by the utility model comprises a collecting cavity 1, a first one-way valve 2 and a pneumatic pressurizing assembly 3, wherein the collecting cavity 1 is used for storing underground water; the first one-way valve 2 is arranged in the collection chamber 1, and the outlet end of the first one-way valve 2 is communicated with the sample box 100; the pneumatic pressurizing assembly 3 comprises a first pressurizing pipe fitting 30, one end of the first pressurizing pipe fitting 30 is communicated with the air source 200, and the other end of the first pressurizing pipe fitting 30 stretches into the collecting chamber 1 to pressurize the collecting chamber 1, so that groundwater in the collecting chamber 1 flows out through the first one-way valve 2. In the actual operation process, the first pressurizing pipe fitting 30 is buried in the surrounding backfilled sand of the drill hole, and the interior of the collecting chamber 1 is pressurized through the first pressurizing pipe fitting 30, so that the groundwater flows back into the sample box 100 from the first one-way valve 2 under the action of pressure, a groundwater sample is obtained, the setting operation is simple and the cost is low, and the problem that the groundwater sampling equipment in the prior art is complex in operation is solved.
Specifically, a first through hole is provided in the side wall of the collection chamber 1, and the first pressurizing pipe member 30 extends into the collection chamber 1 through the first through hole.
In particular embodiments, the groundwater sampling device further comprises: the casing 4, be provided with first overflow cutout 40 on the casing 4, gather the cavity 1 setting and be in the below of casing 4 and with casing 4 intercommunication, groundwater flows into through casing 4 in gathering the cavity 1. Wherein the casing 4 is arranged in the borehole, and groundwater flows into the casing 4 through the first overflow cutout 40, and then into the collecting chamber 1 for groundwater sampling.
Further, the groundwater sampling device further comprises: the second one-way valve 5 is arranged between the sleeve 4 and the collecting chamber 1, the second one-way valve 5 is respectively communicated with the sleeve 4 and the collecting chamber 1, and the groundwater in the sleeve 4 flows into the collecting chamber 1 through the second one-way valve 5. Wherein, pneumatic pressurizing assembly 3 still includes: and one end of the second pressurizing pipe fitting 31 is communicated with the air source 200, and the other end of the second pressurizing pipe fitting 31 stretches into the sleeve 4 to pressurize the underground water in the sleeve 4 so as to flow into the collecting chamber 1. The arrangement is such that groundwater is accelerated to flow into the collection chamber 1 through the second non-return valve 5 under the pressure of the second pressurizing pipe 31, and the pressure in the first pressurizing pipe 30 can also be used as a reference for the pressure in the second pressurizing pipe 31.
Preferably, the side wall of the sleeve 4 is provided with a second through hole through which the second pressurizing pipe member 31 protrudes into the sleeve 4.
In another embodiment provided by the present utility model, the groundwater sampling device further includes: the liquid storage chamber 6 is arranged below the collecting chamber 1, a second overflow notch 60 is arranged on the inner wall of the liquid storage chamber 6, groundwater flows into the liquid storage chamber 6 through the second overflow notch 60, and groundwater in the liquid storage chamber 6 overflows into the collecting chamber 1. In the actual collection process, the underground water in the liquid storage chamber 6 has certain pressure, and when the underground water in the liquid storage chamber 6 reaches a certain amount, the underground water automatically overflows into the collection chamber 1 and flows out through the first one-way valve 2 in the collection chamber 1.
In particular embodiments, the groundwater sampling device further comprises: the third one-way valve 7 is arranged between the liquid storage chamber 6 and the collecting chamber 1, the third one-way valve 7 is respectively communicated with the liquid storage chamber 6 and the collecting chamber 1, and the underground water in the liquid storage chamber 6 overflows into the collecting chamber 1 through the third one-way valve 7.
In this application, groundwater sampling device further includes: the collection pipe fitting 8, the one end of collection pipe fitting 8 and first check valve 2 intercommunication, the other end and the sample box 100 intercommunication of collection pipe fitting 8. The side wall of the collecting cavity 1 is provided with a third through hole, and at least part of the collecting pipe fitting 8 is arranged in the third through hole in a penetrating way and communicated with the first one-way valve 2.
In actual operation, as shown in fig. 3 to 5, the groundwater sampling device further includes a control device 9, the control device 9 is detachably connected with the first pressurizing pipe member 30 and the second pressurizing pipe member 31, respectively, and the pressure state in the first pressurizing pipe member 30 and the second pressurizing pipe member 31 is controlled by the control device 9.
Specifically, the control device 9 includes a pressure line 90, a four-way valve 91, a venturi unit 92, a pressure/vacuum gauge 93, a first on-off valve 94, a pressure regulator 95, a three-way valve 96, and a second on-off valve 97, ventilation or evacuation is performed through the pressure line 90, the second on-off valve 97 is provided on the pressure line 90, the venturi unit 92 communicates with the pressure line 90 through the four-way valve 91, the four-way valve 91 includes four on-ports, one of which communicates with the three-way valve 96 through a connection pipe, and the pressure regulator 95, the first on-off valve 94, and the pressure/vacuum gauge 93 are provided in this order on the connection pipe; wherein the venturi unit 92 comprises three ports, a first port of the three ports being in communication with the pressure line 90 and a second port of the three ports being in communication with the four-way valve 91; in pressure mode, the lines lead to a pressure regulator 95 and an additional first on-off valve 94, providing redundancy for performing accurate testing. A sensitive pressure/vacuum gauge 93 is located on the pressure line before the three-way valve 96 and regulates the flow of pressurized air or gas through the pressure line 90 into the first and/or second pressurizing tubes 30, 31. When a vacuum is required, the four-way valve 91 is adjusted to direct a flow of air or gas through the second on-off valve 97 to the venturi unit 92, which can create a vacuum directed back through the four-way valve 91 to the line pressure line 90.
The groundwater sampling device of the present application may be located in its simplest form in a well inaccessible area with remote monitoring capabilities; can be buried in an in-situ location and does not require continuous time-consuming purging of a single pumping system; may be located downhole for sampling from within the well casing; to be attached below the well casing, to sample from the component reservoirs without interfering with the operation of the well itself; the ability to collect samples from different areas within the groundwater level sampled by the well; a console is provided for operating and recording all programs and operations required for well monitoring.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the underground water sampling equipment provided by the utility model comprises a collecting cavity 1, a first one-way valve 2 and a pneumatic pressurizing assembly 3, wherein the collecting cavity 1 is used for storing underground water; the first one-way valve 2 is arranged in the collection chamber 1, and the outlet end of the first one-way valve 2 is communicated with the sample box 100; the pneumatic pressurizing assembly 3 comprises a first pressurizing pipe fitting 30, one end of the first pressurizing pipe fitting 30 is communicated with the air source 200, and the other end of the first pressurizing pipe fitting 30 stretches into the collecting chamber 1 to pressurize the collecting chamber 1, so that groundwater in the collecting chamber 1 flows out through the first one-way valve 2. In the actual operation process, the first pressurizing pipe fitting 30 is buried in the surrounding backfilled sand of the drill hole, and the interior of the collecting chamber 1 is pressurized through the first pressurizing pipe fitting 30, so that the groundwater flows back into the sample box 100 from the first one-way valve 2 under the action of pressure, a groundwater sample is obtained, the setting operation is simple and the cost is low, and the problem that the groundwater sampling equipment in the prior art is complex in operation is solved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An underground water sampling device, comprising:
a collection chamber (1) for storing groundwater;
the first one-way valve (2) is arranged in the collection chamber (1), and the outlet end of the first one-way valve (2) is communicated with the sample box (100);
the pneumatic pressurizing assembly (3), the pneumatic pressurizing assembly (3) comprises a first pressurizing pipe fitting (30), one end of the first pressurizing pipe fitting (30) is communicated with the air source (200), the other end of the first pressurizing pipe fitting (30) stretches into the collecting cavity (1) so as to pressurize the collecting cavity (1), and groundwater in the collecting cavity (1) flows out through the first one-way valve (2).
2. Groundwater sampling device according to claim 1, characterized in that the side wall of the collecting chamber (1) is provided with a first through hole through which the first pressurizing pipe (30) extends into the collecting chamber (1).
3. The groundwater sampling device of claim 1, further comprising:
the underground water collection device comprises a sleeve (4), wherein a first overflow notch (40) is formed in the sleeve (4), the collection chamber (1) is arranged below the sleeve (4) and is communicated with the sleeve (4), and underground water flows into the collection chamber (1) through the sleeve (4).
4. A groundwater sampling device according to claim 3, further comprising:
the second one-way valve (5) is arranged between the sleeve (4) and the collecting cavity (1), the second one-way valve (5) is respectively communicated with the sleeve (4) and the collecting cavity (1), and groundwater in the sleeve (4) flows into the collecting cavity (1) through the second one-way valve (5).
5. A groundwater sampling device according to claim 3, characterized in that the pneumatic pressurizing assembly (3) further comprises:
the second pressurizing pipe fitting (31), one end of the second pressurizing pipe fitting (31) is communicated with the air source (200), and the other end of the second pressurizing pipe fitting (31) stretches into the sleeve (4) so as to pressurize groundwater in the sleeve (4) to enable the groundwater to flow into the collecting cavity (1).
6. Groundwater sampling device according to claim 5, characterized in that the side wall of the casing (4) is provided with a second through hole through which the second pressurizing pipe (31) protrudes into the casing (4).
7. The groundwater sampling device of claim 1, further comprising:
the liquid storage chamber (6) is arranged below the collecting chamber (1), a second overflow notch (60) is formed in the inner wall of the liquid storage chamber (6), the underground water flows into the liquid storage chamber (6) through the second overflow notch (60), and the underground water in the liquid storage chamber (6) overflows into the collecting chamber (1).
8. The groundwater sampling device of claim 7, further comprising:
the third one-way valve (7) is arranged between the liquid storage chamber (6) and the collecting chamber (1), the third one-way valve (7) is respectively communicated with the liquid storage chamber (6) and the collecting chamber (1), and groundwater in the liquid storage chamber (6) overflows into the collecting chamber (1) through the third one-way valve (7).
9. The groundwater sampling device of claim 1, further comprising:
the collecting pipe fitting (8), one end of the collecting pipe fitting (8) is communicated with the first one-way valve (2), and the other end of the collecting pipe fitting (8) is communicated with the sample box (100).
10. Groundwater sampling device according to claim 9, characterized in that a third through hole is provided in the side wall of the collecting chamber (1), at least part of the collecting pipe (8) being arranged in the third through hole and communicating with the first non return valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223577530.1U CN219348293U (en) | 2022-12-30 | 2022-12-30 | Groundwater sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223577530.1U CN219348293U (en) | 2022-12-30 | 2022-12-30 | Groundwater sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN219348293U true CN219348293U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223577530.1U Active CN219348293U (en) | 2022-12-30 | 2022-12-30 | Groundwater sampling device |
Country Status (1)
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| CN (1) | CN219348293U (en) |
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- 2022-12-30 CN CN202223577530.1U patent/CN219348293U/en active Active
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