CN217786662U

CN217786662U - Underground water artesian well pressure measuring and gas collecting device

Info

Publication number: CN217786662U
Application number: CN202221589125.9U
Authority: CN
Inventors: 张贵军; 张凤海; 张新; 张小川
Original assignee: Heilongjiang Provincial Hydrology And Water Resources Center
Current assignee: Heilongjiang Provincial Hydrology And Water Resources Center
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-11-11
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a groundwater artesian well pressure measurement and gaseous collection system. The device is characterized in that a fixed top plate and a fixed bottom plate are fixedly connected through a fixed supporting rod, a claw-shaped retention bolt is fixedly arranged on the fixed bottom plate, a fastening handle is fixedly arranged on the outer side of a retention nut, a water guide pipe is fixedly arranged on the fixed top plate, a water discharge pipe is fixedly arranged at the side end of the water guide pipe, a valve is arranged on the water discharge pipe, and a pressure gauge is arranged on the water guide pipe. An exhaust pipe is fixedly arranged at the top end of the water guide pipe, a limiting support bottom and a limiting funnel are fixedly arranged in the exhaust pipe, and a spherical floater is arranged between the limiting support bottom and the limiting funnel. The exhaust pipe is provided with an inflation valve and is connected with the gas collection bag through a gas collection joint. The device structure is succinct portable, and easy operation has realized the function to aqueous vapor separation in the groundwater artesian well, can the on-the-spot measurement groundwater artesian well hydrostatic pressure, confirms the confined water level.

Description

Underground water self-flowing well pressure measuring and gas collecting device

Technical Field

The utility model discloses the creation belongs to groundwater measuring device, especially relates to a groundwater artesian well pressure measurement and gaseous collection system.

Background

The groundwater level is an important index for reflecting the dynamic change of groundwater resources, a groundwater monitoring system of a key area is established, the construction of a groundwater monitoring station network is promoted, and the method is an important measure for saving, protecting and reasonably utilizing groundwater resources. In the process of building the underground water monitoring station network, because the target aquifer monitored by the monitoring well is the confined water, when the ground of the well digging position is lower than the confined water level, the confined water can gush out of the ground surface to form a flowing well, and some wells even overflow with unknown gas along with flowing. Therefore, a device capable of measuring the hydrostatic pressure above the ground of the flowing well on site, collecting a gas sample on site and analyzing the components of the gas sample is urgently needed, so that the monitoring mode of the underground water level, the type selection of the monitoring equipment and the corresponding processing measures of the monitoring well are determined, and reliable data support is provided for engineering construction. At present, no underground water artesian well hydrostatic pressure measuring and gas sampling device is available in the market, and great confusion is brought to the construction work of an underground water monitoring station network.

Disclosure of Invention

The utility model discloses the purpose of creation is exactly to the problem that above-mentioned prior art exists, provides a groundwater artesian well pressure measurement and gaseous collection system, the utility model discloses the technical scheme who creates realizes like this: the utility model provides a groundwater artesian well pressure measurement and gaseous collection system which characterized in that: the fixing top plate (1) and the fixing bottom plate (3) are fixedly connected through the fixing support rod (2), the fixing bottom plate (3) is fixedly provided with a claw-shaped fixing bolt (4), the outer side of the fixing nut (5) is fixedly provided with a fastening handle (6), and the fastening handle (6) is connected with the fixing nut (5) through a rotating shaft. The internal thread of maintenance nut (5) inboard is mutually supported with the external screw thread of claw shape maintenance bolt (4), makes claw shape maintenance bolt (4) can fasten water pipe (16) when maintenance nut (5) is rotatory, simultaneously, makes water pipe (16) closely closed through stagnant water cushion (21) and stagnant water sleeve (7) gu be equipped with aqueduct (8) on fixed roof (1), drain pipe (10) are adorned admittedly to aqueduct (8) side, install valve (12) on drain pipe (10), install manometer (9) on aqueduct (8). An exhaust pipe (17) is fixedly arranged at the top end of the water guide pipe (8), a limiting support bottom (19) and a limiting funnel (20) are fixedly arranged in the exhaust pipe (17), a spherical float (18) is arranged between the limiting support bottom (19) and the limiting funnel (20), an inflation valve (11) is arranged on the exhaust pipe (17), and the exhaust pipe (17) is connected with a gas collection bag (15) through a gas collection connector (13). The gas collection joint (13) is connected with the exhaust pipe (17) through threads, and a gas collection valve (14) is installed on the gas collection joint (13).

The utility model has the advantages that: (1) the underground water gravity flow well water-gas separation function is realized, air is prevented from being mixed, a real underground water gas sample is obtained through field sampling so as to test and analyze the composition of gas, analyze and judge whether the overflowed gas contains toxic and harmful substances or not, bring danger and influence degree to engineering construction, operation management and surrounding environment, and provide reliable data support for determining a reasonable construction treatment scheme; (2) the hydrostatic pressure of the underground water gravity flow well can be measured on site, the confined water level can be determined, and reliable data support can be provided for determining the monitoring mode of the underground water level, the type selection of monitoring equipment and the corresponding processing measures of the monitoring well and for determining reasonable construction processing schemes and measures; (3) the structure is succinct portable, and easy operation has shortened the engineering time greatly, has improved work efficiency, has saved engineering cost.

Drawings

FIG. 1 is a schematic view of the overall structure of a device for measuring pressure and collecting gas in an underground artesian well;

FIG. 2 is a schematic bottom view;

FIG. 3 is a schematic view of a gas collection bottle;

fig. 4 is a schematic view of the internal structure of the exhaust pipe.

Description of the part numbers in the figures:

1. fixing a top plate; 2. fixing the support rod; 3. fixing the bottom plate; 4. a claw-shaped retention bolt; 5. a retention nut; 6. fastening a handle; 7. a water stop sleeve; 8. a water conduit; 9. a pressure gauge; 10. a drain pipe; 11. an inflation valve; 12. a valve; 13. a gas collection joint; 14. a gas collection valve; 15. an air collecting bag; 16. a water pipe; 17. a water stop rubber pad; 18. a spherical float; 19. limiting and supporting the bottom; 20. a limiting funnel; 21. and (7) a water stopping rubber pad.

Detailed Description

The inventive embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The utility model provides a groundwater artesian well pressure measurement and gas collection system which characterized in that: the fixed top plate 1 and the fixed bottom plate 3 are fixedly connected through the fixed supporting rod 2, the claw-shaped fixing bolt 4 is fixedly arranged on the fixed bottom plate 3, the fastening handle 6 is fixedly arranged on the outer side of the fixing nut 5, and the fastening handle 6 is connected with the fixing nut 5 through a rotating shaft. The internal thread of the fixing nut 5 is matched with the external thread of the claw-shaped fixing bolt 4, the claw-shaped fixing bolt 4 can fasten the water pipe 16 when the fixing nut 5 rotates, meanwhile, the water pipe 16 is tightly closed with the water stopping sleeve 7 through the water stopping rubber gasket 21, the water guide pipe 8 is fixedly arranged on the fixed top plate 1, the water discharge pipe 10 is fixedly arranged at the side end of the water guide pipe 8, the valve 12 is arranged on the water discharge pipe 10, and the pressure gauge 9 is arranged on the water guide pipe 8. An exhaust pipe 17 is fixedly arranged at the top end of the water guide pipe 8, a limiting support bottom 19 and a limiting funnel 20 are fixedly arranged in the exhaust pipe 17, and a spherical floater 18 is arranged between the limiting support bottom 19 and the limiting funnel 20. The exhaust pipe 17 is provided with an inflation valve 11, and the exhaust pipe 17 is connected with the air collecting bag 15 through an air collecting joint 13. The gas collection joint 13 is connected with the exhaust pipe 17 through threads, and a gas collection valve 14 is installed on the gas collection joint 13.

When the underground water self-flowing well pressure measuring and gas collecting device is used in operation, the underground water self-flowing well pressure measuring and gas collecting device is sleeved on the water pipe 16, the top end of the water pipe 16 is inserted into the water stopping sleeve 7, the fixing nut 5 is driven to rotate through the rotary fastening handle 6, the internal thread of the fixing nut 5 is matched with the external thread of the claw-shaped fixing bolt 4, the claw-shaped fixing bolt 4 tightens the water pipe 16, and the top end of the water pipe 16 tightly presses the water stopping rubber pad 21 in the water stopping sleeve 7. After fastening is finished, the inflation valve 11 is closed, the valve 12 is opened, then the switch of the water pipe 16 is slowly opened, and after the water pressure is stable, the degree of the pressure gauge 9 is read. After the gas collecting bag 15 is washed clean with ultrapure water, the ultrapure water is extruded out of the gas collecting bag 15, a little ultrapure water is remained to fill the extruded and compacted gas collecting bag 15, and the gas collecting valve 14 is closed. The air collecting bag 15 is screwed on the exhaust pipe 17 through the air collecting joint 13, the inflation valve 11 and the air collecting valve 14 are opened, and the valve 12 is closed. At this time, the groundwater in the water pipe 16 enters the exhaust pipe 17 through the water conduit 8 under pressure, passes through the limit bottom 19, and then presses the spherical float 18 against the limit funnel 20 under the action of buoyancy and pressure, so that the passage of the exhaust pipe 17 is closed, and therefore the groundwater cannot enter the air collecting bag 15 through the exhaust pipe 17. After the gas in the underground water body is gradually released, the gas is gradually accumulated in the exhaust pipe 17, the spherical floater 18 leaves the limiting funnel 20 under the action of gravity, the gas enters the gas collecting bag 15, the water body is filled in the exhaust pipe 17 again, and the spherical floater 18 is pressed on the limiting funnel 20 under the action of buoyancy and pressure, so that the passage of the exhaust pipe 17 is closed again. After the gas collecting bag 15 is filled, the gas collecting valve 14 is screwed down, the gas collecting bag 15 is taken down and properly stored, and the gas is transported back to a laboratory for analyzing the collected gas.

Claims

1. The utility model provides a groundwater artesian well pressure measurement and gas collection system which characterized in that: the fixing top plate (1) and the fixing bottom plate (3) are fixedly connected through the fixing support rod (2), the claw-shaped retention bolt (4) is fixedly arranged on the fixing bottom plate (3), the fastening handle (6) is fixedly arranged on the outer side of the retention nut (5), the inner thread of the inner side of the retention nut (5) is matched with the outer thread of the claw-shaped retention bolt (4), the claw-shaped retention bolt (4) can fasten the water pipe (16) when the retention nut (5) rotates, meanwhile, the water pipe (16) is tightly closed with the water stopping sleeve (7) through the water stopping rubber gasket (21), the water guide pipe (8) is fixedly arranged on the fixing top plate (1), the water discharge pipe (10) is fixedly arranged at the side end of the water guide pipe (8), the air discharge pipe (17) is fixedly arranged at the top end of the water guide pipe (8), and the air discharge pipe (17) is connected with the air collection bag (15) through the joint (13).

2. The underground self-flowing well pressure measuring and gas collecting device according to claim 1, characterized in that: a limiting support bottom (19) and a limiting funnel (20) are fixedly arranged in the exhaust pipe (17), and a spherical floater (18) is arranged between the limiting support bottom (19) and the limiting funnel (20).

3. The underground water self-flowing well pressure measuring and gas collecting device of claim 1, wherein: the drain pipe (10) is provided with a valve (12).

4. The underground water self-flowing well pressure measuring and gas collecting device of claim 1, wherein: an inflation valve (11) is arranged on the exhaust pipe (17).

5. The underground water self-flowing well pressure measuring and gas collecting device of claim 1, wherein: the gas collection joint (13) is connected with the exhaust pipe (17) through threads, and a gas collection valve (14) is installed on the gas collection joint (13).

6. The underground water self-flowing well pressure measuring and gas collecting device of claim 1, wherein: a pressure gauge (9) is arranged on the water guide pipe (8).

7. The underground water self-flowing well pressure measuring and gas collecting device of claim 1, wherein: the fastening handle (6) is connected with the retention nut (5) through a rotating shaft.