Flushing and pumping integrated well flushing device for small-caliber underground water monitoring well

Abstract

The utility model discloses a flushing and pumping integrated well flushing device for a small-caliber underground water monitoring well, and relates to the technical field of underground water monitoring. The device comprises a backwashing device and a water pumping device, wherein the backwashing device is connected with the water pumping device; the backwashing device comprises a first pipeline support, a first water conveying pipeline is arranged on the first pipeline support, a connecting pipe is arranged at one end of the first water conveying pipeline, a water spraying pipe is in threaded connection with one end of the connecting pipe, a water spraying head is in threaded connection with one end of the water spraying pipe, and a booster pump connected with the first water conveying pipeline is arranged on one side of the first pipeline support. The pressure of the water spraying head can be increased through the water spraying head, so that the inner wall of the small-caliber well casing is protected against damage, pipelines entering the well are reduced through the back flushing device and the water pumping device, the space in the well is saved, and well flushing of the small-caliber underground water monitoring well is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of groundwater monitoring technology, specifically, it relates to an integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells. Background Technology

[0002] Currently, well cleaning for groundwater environmental monitoring wells is mostly carried out using submersible pumps, self-priming pumps, etc. Some projects may use air compressors for well cleaning. For small-diameter (less than 50mm) monitoring wells, it is difficult to clean them thoroughly with submersible pumps due to the limitations of wellhead diameter and water output. Self-priming pumps cannot completely remove sediment at the bottom of the well. Using air compressors for well cleaning is not easy to control the air pressure down in the well. In wells with low permeability and low water output, the purging pressure may be too high, damaging the monitoring well structure.

[0003] In view of this, this utility model is hereby proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An integrated flushing and pumping device for small-diameter groundwater monitoring wells includes a backflushing device and a pumping device, which are connected together.

[0007] The backwashing device includes a first pipe support, a first water supply pipe is installed on the first pipe support, a connecting pipe is installed at one end of the first water supply pipe, a water spray pipe is threaded to one end of the connecting pipe, a water spray head is threaded to one end of the water spray pipe, a booster pump connected to the first water supply pipe is installed on one side of the first pipe support, and a clean water storage tank is installed on one side of the booster pump.

[0008] The pumping device includes a second pipe support located on one side of the first pipe support, a wastewater collection tank located on one side of the second pipe support, a second water supply pipe connected to the first water supply pipe installed on the second pipe support, a self-priming pump installed on the second water supply pipe, and the wastewater collection tank corresponding to the second water supply pipe.

[0009] Optionally, the first water supply pipeline includes a water supply pipe 1, a water supply pipe 2 connected to a connecting pipe, and a water supply pipe 3. A three-way connector is provided between the water supply pipe 1 and the water supply pipe 2. One end of the water supply pipe 1 is connected to a booster pump, and the two ends of the water supply pipe 3 are connected to the booster pump and the clean water storage tank, respectively.

[0010] Optionally, the second water supply pipeline includes a fourth water supply pipe connected to the three-phase connector, a fifth water supply pipe connected to the fourth water supply pipe, and a sixth water supply pipe fixedly connected to one side of the self-priming pump, wherein the sixth water supply pipe corresponds to the wastewater collection tank.

[0011] Optionally, an arc-shaped connector is installed between water supply pipe two and the connecting pipe. One end of the arc-shaped connector is equipped with a retaining ring, and one end of the connecting pipe is threaded with a reducing coupling. An arc-shaped connecting pipe is installed between water supply pipe four and water supply pipe five.

[0012] Optionally, the connecting pipe includes two solid pipes connected to the reducing coupling, and a slip is provided at the connection between the two solid pipes.

[0013] Optionally, the first pipe support includes a first support frame connected to the two phases of the water supply pipe, and the second pipe support includes a second support frame connected to the four phases of the water supply pipe.

[0014] Optionally, a clamp bracket is fixedly connected to the clamp, and the clamp bracket is connected to the first support frame.

[0015] Optionally, both water supply pipe one and water supply pipe four are equipped with flow control valves.

[0016] Optionally, multiple water holes are provided on the periphery of the water spray pipe, wherein the water holes can be water inlets or water spray holes.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] The spray nozzles are designed to increase pressure, protecting the inner wall of small-diameter well pipes from damage. The backwashing and pumping devices reduce the amount of piping entering the well, saving space and facilitating the cleaning of small-diameter groundwater monitoring wells. Flow control valves and booster pumps control the water pressure, protecting the well structure from damage. The backwashing medium is clean water, which, compared to compressed air, dilutes lower sediment, making it ideal for low-permeability wells with limited water flow.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0021] Figure 1This is a schematic diagram of the integrated flushing and pumping well washing device for small-diameter groundwater monitoring wells according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the water spray pipe structure according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the arc-shaped connector pipe structure according to an embodiment of the present invention;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] Spray head 1, first support frame 101, second support frame 102, water hole 103, spray pipe 2, retaining ring 201, reducing coupling 202, solid pipe 3, slip 4, slip bracket 5, arc joint pipe 601, arc connecting pipe 602, water supply pipe two 701, water supply pipe four 702, water supply pipe one 703, water supply pipe three 704, water supply pipe five 705, water supply pipe six 706, three-way connector 8, flow control valve 9, booster pump 11, clean water storage tank 12, self-priming pump 13, wastewater collection tank 14.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Example 1: Please refer to Figure 1-3 As shown in the figure, this embodiment provides an integrated flushing and pumping device for small-diameter groundwater monitoring wells, including a backwashing device and a pumping device, which are connected to each other.

[0029] The backwashing device includes a first pipe support, a first water supply pipe is provided on the first pipe support, a connecting pipe is provided at one end of the first water supply pipe, a water spray pipe 2 is threadedly connected at one end of the connecting pipe, a water spray head 1 is threadedly connected at one end of the water spray pipe 2, a booster pump 11 connected to the first water supply pipe is installed on one side of the first pipe support, and a clean water storage tank 12 is provided on one side of the booster pump 11.

[0030] The pumping device includes a second pipe support located on one side of the first pipe support, a wastewater collection tank 14 located on one side of the second pipe support, a second water supply pipe connected to the first water supply pipe installed on the second pipe support, a self-priming pump 13 installed on the second water supply pipe, and the wastewater collection tank 14 corresponding to the second water supply pipe.

[0031] The self-priming pump 13 can be a diesel self-priming pump, which can pump the mud and sand mixture formed by backwashing out of the well and perform over-pumping to achieve the purpose of clear water and clean sand. At the same time, a wastewater collection tank is used to collect wastewater and protect the environment. The booster pump 11 is an adjustable booster pump. The water delivery pressure is determined by testing according to the selected diameter and opening density of the nozzle pipe to protect the inside of the well pipe and the bottom support of the well pipe from damage. At the same time, a water storage tank is used to ensure continuous water supply capacity.

[0032] One application of this embodiment is as follows: First, install each water pipe and prepare clean water by placing it in the clean water storage tank 12 and testing the water spray pressure. Then, turn on the booster pump 11 and the flow control valve 9, adjust the water pressure value, and spray water from the water pipe 2 and the water nozzle 1 to clean the sediment at the bottom of the well and the deposits on the side wall. Next, lower the water pipe 2 and the water nozzle 1 and connect them to the solid pipe 3. Secure the connection of the solid pipe 3 with the clamps 4, and then pressurize and spray water. Repeat this process alternately until backflushing reaches the bottom of the well. Finally, close the booster pump 11 and the control valve 9 on the first water pipe 703, start the self-priming pump 13 and the control valve 9 on the fourth water pipe 702, pump out the mud and sand mixture, and perform over-pumping to complete the well washing work. During the backflushing process, the system can be switched in time according to the water level in the well to pump water.

[0033] The spray head 2 increases the pressure of the spray head to protect the inner wall of the small-diameter well pipe from damage. The backwashing device and pumping device reduce the number of pipes entering the well, saving space and facilitating the cleaning of small-diameter groundwater monitoring wells. At the same time, the flow control valve 9 and booster pump 11 can be used to control the water supply pressure and protect the monitoring well structure from damage. The backwashing medium is clean water, which, compared with compressed air, can dilute the lower sediment and is perfectly applicable to low-permeability wells with small water volume.

[0034] like Figure 1 As shown, the first water supply pipeline in this embodiment includes a first water supply pipe 703, a second water supply pipe 701 connected to a connecting pipe, and a third water supply pipe 704. A three-way connector 8 is provided between the first water supply pipe 703 and the second water supply pipe 701. One end of the first water supply pipe 703 is connected to a booster pump 11, and both ends of the third water supply pipe 704 are connected to the booster pump 11 and the clean water storage tank 12, respectively. The above-mentioned multiple water supply pipes are the pipes before entering the well, and can be made of PVC material. Arc-shaped connectors are used at bends, and reducing flexible connectors 202 are used at the connection with the actual pipe 3 entering the well.

[0035] like Figure 1 As shown, the second water supply pipe in this embodiment includes a fourth water supply pipe 702 connected to the three-phase connector 8, a fifth water supply pipe 705 connected to the fourth water supply pipe 702, and a sixth water supply pipe 706 fixedly connected to one side of the self-priming pump 13, wherein the sixth water supply pipe 706 corresponds to the wastewater collection tank 14.

[0036] like Figure 3 As shown, in this embodiment, an arc-shaped connector pipe 601 is installed between the second water supply pipe 701 and the connecting pipe. One end of the arc-shaped connector pipe 601 is equipped with a retaining ring 201, and one end of the connecting pipe is threaded with a reducing coupling 202. An arc-shaped connecting pipe 602 is installed between the fourth water supply pipe 702 and the fifth water supply pipe 705. The reducing coupling 202 is made of cast iron and can be arc-shaped. The upper end is a fixed spiral interface that connects to the water supply pipe, and the lower part is a reducing spiral connector. It is mainly used to extend the well-entry pipe 3 and change the diameter of the well-entry pipe to increase the pressure of water flowing into the well.

[0037] like Figure 1 As shown, the connecting pipe in this embodiment includes two solid pipes 3 connected to the reducing flexible joint 202, and a slip 4 is provided at the connection between the two solid pipes 3.

[0038] like Figure 1 As shown, the first pipe support in this embodiment includes a first support frame 101 connected to the second water supply pipe 701, and the second pipe support includes a second support frame 102 connected to the fourth water supply pipe 702. The aforementioned pipe supports are made of steel and are used to support the water supply pipes to ensure the stability and smooth flow of the pipes during pressurized water injection and pumping processes.

[0039] like Figure 1 As shown, in this embodiment, a slip support 5 is fixedly connected to the slip 4, and the slip support 5 is connected to the first support frame 101. The slip support 5 is made of steel bars, is cylindrical, and is supported on the ground at the bottom while bearing the pressure of the slip 4 at the top. The slip 4 tightly holds the well pipe and is locked at the lower protruding part of the pipe interface. The two sides of the slip 4 extend beyond the well pipe and rest on the slip support 5, which can provide a supporting force for the slip 4, making the slip 4 more stable in use.

[0040] like Figure 1 As shown, both the first water supply pipe 703 and the fourth water supply pipe 702 in this embodiment are equipped with flow control valves 9. The flow control valves 9 are made of cast iron and mainly function to open and close, controlling the water flow and switching between the backwashing device and the pumping device.

[0041] like Figure 2As shown, the water spray pipe 2 in this embodiment has multiple water holes 103 on its periphery, which can be water inlets or spray holes. The water spray head 1 is made of cast iron, and multiple water inlets or spray holes are arranged on the lower part and around the periphery of the water spray head. The water spray head 1 can adopt a variable diameter design to increase the water pressure. The water spray pipe 2 is made of steel pipe with a pipe diameter of 20mm and a water spray pipe length of 50cm. It can be set with various lengths, such as 0.2m-1m, to increase the adaptability to cleaning different depths. At the same time, the densely arranged spray holes in multiple directions increase the contact area with the cleaning pipe wall and the water inflow. The lower part is a socket-type threaded joint and a protruding threaded joint to ensure that the upper and lower pipes can be firmly connected.

[0042] This utility model provides a well-washing device for groundwater monitoring wells, which mainly includes a water spray head 1, a water spray pipe 2, a solid pipe 3, slips 4, slip support 5, a reducing flexible joint 202, an arc-shaped joint pipe 602, a water delivery pipe, a three-way connector 8, a flow control valve 9, a pipe support, a booster pump 11, a clean water storage tank 12, a self-priming pump 13, and a wastewater collection tank 14.

[0043] Further preparations are made to connect the clean water storage tank 12 to the booster pump 11 via the water supply pipe 704, and install the flow control valve 9 on the water outlet pipe of the booster pump for controlling the flow and switching the system.

[0044] Further, water pipes 703, 701, and 702 are connected to three-way connector 8. At the bend of water pipe 702, an arc-shaped interface 602 is used for connection. The arc-shaped interface 602 is further connected to water pipe 705. Water pipe 705 is connected to self-priming pump 13. The outlet of self-priming pump is connected to water pipe 706. The discharge outlet is placed in wastewater collection tank 14.

[0045] Furthermore, the water nozzle 1 is connected to the water pipe 2, and the water pipe 2 is connected to the solid pipe 3 through the pipe section thread. After being lowered to the cleaning depth, it is clamped with slips 4. The pipe section falls on the slips 4, and the slips 4 falls on the slip support 5, transferring the pressure borne by the slips 4 to the ground, so that the water nozzle, water pipe 2 and solid pipe 3 are suspended in the well hole.

[0046] Furthermore, adjustable supports 101 and 102 are used to support the water supply pipes 701 and 702. By adjusting the height of the adjustable supports 101 and 102, the lower interface of the flexible connector pipe 601 can be tightly connected to the solid pipe 3.

[0047] The specific operation mode of the device described in this utility model embodiment is as follows:

[0048] Step 1: After the device is assembled, start the booster pump 11, adjust the booster parameters, open the flow control valve 9, and close the other flow control valve 9. Pressurized water passes through the spray head 1 and the spray pipe 2 to flush and disturb the silt and mud adhering to the side wall at the bottom.

[0049] Step 2: Turn off booster pump 11, turn off flow control valve 9, loosen slip 4, unscrew arc-shaped reducing coupling 601, lower water nozzle 1, water pipe 2 and solid pipe 3, tighten with slip 4, connect to solid pipe, start booster pump 11, adjust booster parameters, open flow control valve 9, and proceed to the next depth of cleaning. Repeat this process until flushing reaches the bottom of the well.

[0050] Step 3:

[0051] After backflushing to the bottom of the well, turn off the booster pump 11, close the flow control valve 9, turn on the self-priming pump 13, and open another flow control valve 9 to pump the mud and sand mixture out of the well and perform over-pumping to complete the final well washing work.

[0052] In summary, the present invention provides an integrated flushing and pumping device for small-diameter groundwater monitoring wells, which integrates the backwashing system and the pumping system into one design, saving space inside the well, suitable for small-diameter monitoring wells, and eliminating the need for repeated pipe pulling and pump lifting, thus saving time and improving work efficiency.

[0053] This utility model optimizes and modifies the well inlet pipeline to form a water nozzle 1 and a water spray pipe 2, which increases the water outlet pressure. When used in conjunction with a booster pump 11 and a flow control valve 9, it can effectively control the water spray pressure inside the well and protect the monitoring well structure from damage.

[0054] The use of pipe supports and clamps 4 fixing devices improves the stability and smoothness of the pipeline, ensuring the quality of well cleaning. At the same time, a wastewater collection tank 14 is set up to collect wastewater and protect the environment.

[0055] Overall, this utility model has the advantages of simple and quick operation, stable operation, thorough well cleaning, and environmental friendliness.

[0056] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A well-washing device integrating flushing and pumping for small-diameter groundwater monitoring wells, characterized in that, include: The backwashing device and the pumping device are connected. The backwashing device includes a first pipe support, a first water supply pipe is provided on the first pipe support, a connecting pipe is provided at one end of the first water supply pipe, a water spray pipe (2) is threaded to one end of the connecting pipe, a water spray head (1) is threaded to one end of the water spray pipe (2), a booster pump (11) connected to the first water supply pipe is installed on one side of the first pipe support, and a clean water storage tank (12) is provided on one side of the booster pump (11). The pumping device includes a second pipe support located on one side of the first pipe support, a wastewater collection tank (14) located on one side of the second pipe support, a second water supply pipe connected to the first water supply pipe installed on the second pipe support, a self-priming pump (13) installed on the second water supply pipe, and the wastewater collection tank (14) corresponding to the second water supply pipe.

2. The integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells according to claim 1, characterized in that, The first water supply pipeline includes a water supply pipe 1 (703), a water supply pipe 2 (701) connected to a connecting pipe, and a water supply pipe 3 (704). A three-way connector (8) is provided between the water supply pipe 1 (703) and the water supply pipe 2 (701). One end of the water supply pipe 1 (703) is connected to the booster pump (11), and both ends of the water supply pipe 3 (704) are connected to the booster pump (11) and the clean water storage tank (12), respectively.

3. The integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells according to claim 2, characterized in that, The second water supply pipeline includes a fourth water supply pipe (702) connected to the three-phase connector (8), a fifth water supply pipe (705) connected to the fourth water supply pipe (702), and a sixth water supply pipe (706) fixedly connected to one side of the self-priming pump (13), wherein the sixth water supply pipe (706) corresponds to the wastewater collection tank (14).

4. The integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells according to claim 3, characterized in that, An arc-shaped connector pipe (601) is installed between the second water supply pipe (701) and the connecting pipe. One end of the arc-shaped connector pipe (601) is equipped with a retaining ring (201). One end of the connecting pipe is threaded with a reducing fitting (202). An arc-shaped connecting pipe (602) is installed between the fourth water supply pipe (702) and the fifth water supply pipe (705).

5. The integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells according to claim 4, characterized in that, The connecting pipe includes two solid pipes (3) connected to the reducing coupling (202), and a slip (4) is provided at the connection between the two solid pipes (3).

6. The integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells according to claim 2, characterized in that, The first pipe support includes a first support frame (101) connected to the second water pipe (701), and the second pipe support includes a second support frame (102) connected to the fourth water pipe (702).

7. A well-washing device integrating flushing and pumping for small-diameter groundwater monitoring wells according to claim 6, characterized in that, A clamp bracket (5) is fixedly connected to the clamp (4), and the clamp bracket (5) is connected to the first support frame (101).

8. The integrated well-washing device for flushing and pumping small-diameter groundwater monitoring wells according to claim 1, characterized in that, Both water supply pipe 1 (703) and water supply pipe 4 (702) are equipped with flow control valves (9).

9. A well-washing device integrating flushing and pumping for small-diameter groundwater monitoring wells according to claim 1, characterized in that, Multiple water holes (103) are provided on the periphery of the water spray pipe (2), wherein the water holes can be water inlets or water spray holes.

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