A kind of integrated equipment for automatic intelligent well completion and pumping of light well points

Abstract

The present invention discloses an integrated device for automatic intelligent well formation and pumping of a light well point, belonging to the field of dewatering technology. It includes a motor, a centrifugal pump connected to the motor, a circulation tank communicated with the water inlet of the centrifugal pump, a jet structure communicated with the water outlet of the centrifugal pump, a drain pipe communicated with the water outlet of the jet structure, and a control system for controlling the start and stop of the centrifugal pump. The other end of the drain pipe is connected with a well flushing structure, and a water collection and pumping structure is communicated with one side of the jet structure. In this embodiment, a vacuum chamber is formed by combining the centrifugal pump and the jet structure, so as to pump out the water or air in the well pipe, and at the same time, the pumped water is discharged through the impact bit to form a high-pressure water flow for the formation of the light well point. At the same time, a control system is set to control the start and stop of the device and detect the water level, so as to achieve the purpose of simultaneous well formation and pumping and intelligent control.

Description

Technical Field

[0001] The present invention relates to a well - forming device, in particular to an integrated light - well - point automatic intelligent well - forming and pumping device, belonging to the field of dewatering technology. Background Art

[0002] The light well - point refers to arranging well - point pipes at certain intervals along the perimeter of the foundation pit. A filter pipe is set at the bottom of the well - point pipe and inserted into the permeable layer. The upper part is connected to a flexible hose and then to a water - collecting main pipe. The water - collecting main pipe is provided with water - suction pipe orifices at the same interval as the well - point pipes. Then, the water in the water - collecting pipe is pumped out by a vacuum water pump, so as to achieve the effect of lowering the groundwater level around the foundation pit and ensure the dryness of the foundation base without water.

[0003] Traditionally, the light well - point is divided into two parts: well - forming and pumping. Two sets of equipment are required during the construction process, so it is not cost - effective in terms of cost. Secondly, the construction site is narrow, and the two sets of equipment occupy a large space and are inconvenient to move.

[0004] Moreover, during well - forming or construction, manual operation is carried out, including starting and stopping the equipment, detecting the water level, etc. Due to construction site limitations and a large number of well - points, all operations rely on manual labor, which is time - consuming and laborious.

[0005] Therefore, a set of equipment integrating well - forming and pumping is needed, and it can detect the water level in real - time and remotely control the equipment. Summary of the Invention

[0006] The main purpose of the present invention is to provide an integrated light - well - point automatic intelligent well - forming and pumping device. A vacuum chamber is formed by combining a centrifugal pump and a jet structure, so as to pump out the water or air in the well pipe. At the same time, the pumped - out water is discharged through an impact drill bit to form a high - pressure water flow for light - well - point well - forming. A control system is set to control the start and stop of the equipment and detect the water level, so as to achieve the purpose of simultaneous well - forming and pumping and intelligent control.

[0007] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0008] An integrated light - well - point automatic intelligent well - forming and pumping device includes a motor, a centrifugal pump connected to the motor, a circulation tank communicated with the water inlet of the centrifugal pump, a jet structure communicated with the water outlet of the centrifugal pump, a drain pipe communicated with the water outlet of the jet structure, and a control system for controlling the start and stop of the centrifugal pump. The other end of the drain pipe is connected to a well - flushing structure, and a water - collecting and pumping structure is communicated with one side of the jet structure.

[0009] Preferably, the circulation tank is communicated with the water inlet of the centrifugal pump through a water inlet pipe, the circulation tank is communicated with the drain pipe through a circulation pipe, a first electromagnetic valve electrically connected to the control system is arranged on the circulation pipe, and a first water level sensor electrically connected to the control system is further arranged in the circulation tank.

[0010] Preferably, the jet structure includes an outer cylinder and an inner cylinder located inside the outer cylinder and connected to the bottom of the outer cylinder. The inner cylinder is hollow to form a jet chamber, and a vacuum chamber is formed between the outer cylinder and the inner cylinder.

[0011] Preferably, the diameter of the inner cavity of the jet chamber gradually decreases, and the center line of the water outlet of the outer cylinder and the center line of the water outlet of the inner cylinder are on the same center line.

[0012] Preferably, a vacuum port communicated with the collection and extraction structure is arranged on one side of the outer cylinder, and the position of the vacuum port is lower than the position of the water outlet of the inner cylinder.

[0013] Preferably, the well flushing structure includes a plurality of connected dredging pipes and an impact drill bit connected to the frontmost dredging pipe.

[0014] Preferably, the collection and extraction structure includes a connecting pipe communicated with the jet structure and a collection and extraction pipe communicated with the connecting pipe. A plurality of extraction air pipes and a plurality of extraction water pipes are connected to the collection and extraction pipe.

[0015] Preferably, second electromagnetic valves electrically connected to the control system are arranged on the plurality of extraction air pipes and the plurality of extraction water pipes.

[0016] Preferably, a second water level sensor electrically connected to the control system is installed in the precipitation well of the light well point.

[0017] Preferably, the control system includes a signal acquisition module, a data processing module, a threshold analysis module and an instruction operation module.

[0018] The beneficial technical effects of the present invention:

[0019] 1. The light well point automatic intelligent well completion and pumping integrated equipment provided by the present invention combines pumping and well completion, reduces equipment costs, and at the same time occupies a small area at a narrow construction site.

[0020] 2. The light well point automatic intelligent well completion and pumping integrated equipment provided by the present invention branches out a circulation pipe from the drain pipe and communicates with the circulation tank, enabling the centrifugal pump to continuously extract the water source of the circulation tank during the pumping process without separately setting up a standby water source.

[0021] 3. For the light well point automatic intelligent well completion and pumping integrated equipment provided by the present invention, a vacuum port is arranged in the jet structure below the water outlet of the jet chamber of the inner cylinder, which can prevent water from flowing back into the collection and pumping structure.

[0022] 4. For the light well point automatic intelligent well completion and pumping integrated equipment provided by the present invention, a water pumping and air pumping device is arranged in the collection and pumping structure, so that the device can not only be used for pumping water, but also for pumping air in the well pipe under airtight conditions, forming negative pressure in the well pipe until vacuum, and accelerating the inflow of water in the soil into the well pipe.

[0023] 5. For the light well point automatic intelligent well completion and pumping integrated equipment provided by the present invention, the control system can control the start and stop of the centrifugal pump, control the water supply source of the circulation tank through the first water level sensor, and control the start and stop of the collection and pumping structure through the second water level sensor in the precipitation well, so as to achieve the purpose of remotely controlling the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a schematic diagram of the overall structure of a preferred embodiment of the light well point automatic intelligent well completion and pumping integrated equipment according to the present invention;

[0025] Figure 2 FIG. is a front view of a preferred embodiment of the light well point automatic intelligent well completion and pumping integrated equipment according to the present invention;

[0026] Figure 3 FIG. is a schematic diagram of the structure of the jet structure of a preferred embodiment of the light well point automatic intelligent well completion and pumping integrated equipment according to the present invention;

[0027] Figure 4 FIG. is a cross-sectional view of the jet structure of a preferred embodiment of the light well point automatic intelligent well completion and pumping integrated equipment according to the present invention;

[0028] Figure 5 FIG. is a schematic diagram of the structure of the well flushing structure of a preferred embodiment of the light well point automatic intelligent well completion and pumping integrated equipment according to the present invention;

[0029] Figure 6 FIG. is a schematic diagram of the module connection of the control system of a preferred embodiment of the light well point automatic intelligent well completion and pumping integrated equipment according to the present invention.

[0030] In the figure: 1 - motor, 2 - centrifugal pump, 3 - jet structure, 4 - circulation tank, 5 - drain pipe, 6 - water collection and pumping structure, 7 - well flushing structure, 71 - dredging pipe, 72 - impact drill bit, 31 - vacuum port, 32 - vacuum chamber, 33 - jet chamber, 34 - outer cylinder, 35 - inner cylinder, 36 - water outlet, 37 - jet orifice, 41 - water inlet pipe, 42 - circulation pipe, 43 - first electromagnetic valve, 44 - first water level sensor, 61 - connecting pipe, 62 - integrated pipe, 63 - air extraction pipe, 64 - water extraction pipe, 65 - second electromagnetic valve, 66 - precipitation well, 67 - second water level sensor. Specific implementation manner

[0031] To make the technical solutions of the present invention clearer and more definite to those skilled in the art, the present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings. However, the implementation manners of the present invention are not limited thereto.

[0032] As Figures 1-5 shown, the light well point automatic intelligent well completion and pumping integrated equipment provided in this embodiment includes a motor 1, a centrifugal pump 2 connected to the motor 1, a circulation tank 4 communicating with the water inlet of the centrifugal pump 2, a jet structure 3 communicating with the water outlet of the centrifugal pump 2, a drain pipe 5 communicating with the water outlet of the jet structure 3, and a control system 8 for controlling the start and stop of the centrifugal pump 2. The other end of the drain pipe 5 is connected with a well flushing structure 7, and a water collection and pumping structure 6 is communicated with one side of the jet structure 3, integrating water pumping and well completion, reducing the equipment cost, and at the same time occupying a small area at a narrow construction site.

[0033] Further, in this embodiment, as Figure 1 and Figure 2 shown, the control system 8 controls the start and stop of the centrifugal pump 2, and controls the start and stop of the first electromagnetic sensor 43 of the circulation pipe 42 through the data transmitted by the first water level sensor 44, so as to control the water supply source on the circulation tank 4. The water collection and pumping structure 6 extracts water and air from the precipitation well 66, and the control system 8 controls the start and stop of the second electromagnetic sensor 65 on the water collection and pumping structure 6 through the data of the second water level sensor 67 in the precipitation well 66, so as to achieve the purpose of remotely controlling the equipment.

[0034] In the preference of this embodiment, the centrifugal pump 2 can also be replaced with a submersible pump and directly placed in the circulation tank 4.

[0035] Further, in this embodiment, as Figure 1 and Figure 2As shown in the figure, a water inlet pipe 41 is provided on one side of the circulation tank 4. The circulation tank 4 is connected to the water inlet of the centrifugal pump 2 through the water inlet pipe 41. A circulation pipe 42 is provided on one side of the drain pipe 5. The circulation tank 4 is connected to the drain pipe 5 through the circulation pipe 42. A first electromagnetic valve 43 electrically connected to the control system is provided on the circulation pipe 41. A first water level sensor 44 electrically connected to the control system 8 is also provided in the circulation tank 4.

[0036] The first water level sensor 44 detects the water level in the circulation tank 4 in real time and transmits the data to the control system 8. The control system 8 analyzes the data. If the water level is too high, it controls the first electromagnetic valve 43 to close. If the water level is too low, it controls the first electromagnetic valve 43 to open, so as to keep the water source in the circulation tank 4 continuously supplied to the centrifugal pump 2.

[0037] In this embodiment, the centrifugal pump 2 pumps out the water in the circulation tank 4 and discharges it through the drain pipe 5. At the same time, a part of the water in the drain pipe 5 flows back to the circulation tank 4 through the circulation pipe 42.

[0038] In this embodiment, the circulation tank is preferably a stainless steel water tank. Further, it is better to be set as a three-stage sedimentation tank.

[0039] Further, in this embodiment, as Figures 1-5 shown, the combination of the centrifugal pump 2 and the jet structure 3 is a jet pump commonly used in the art. However, in this embodiment, the jet structure is redesigned and connected to the collection and pumping structure.

[0040] Further, in this embodiment, as Figures 1-4 shown, the jet structure 3 includes an outer cylinder 34 and an inner cylinder 35 located inside the outer cylinder 34 and connected to the bottom of the outer cylinder 34. The inner cylinder 35 is hollow to form a jet chamber 33, and a vacuum chamber 32 is formed between the outer cylinder 34 and the inner cylinder 35.

[0041] The vacuum chamber 32 in this embodiment is an annular space. It is also possible to set one side of the outer cylinder 34 to coincide with one side of the inner cylinder 35, that is, a vacuum chamber 32 is formed between the other side of the outer cylinder 34 and the other side of the inner cylinder 35.

[0042] Further, in this embodiment, as Figures 1-4 shown, the water outlet end of the jet chamber 32 (that is, the inner cylinder 35) forms a jet orifice 37, and the water outlet end of the outer cylinder 34 forms a drain port 36. The center line of the water outlet of the outer cylinder and the center line of the water outlet of the inner cylinder are on the same center line, that is, the center line of the drain port 36 of the outer cylinder 34 and the center line of the jet orifice 37 of the inner cylinder 35 are on the same center line.

[0043] Further, in this embodiment, as Figures 1-4As shown, the diameter of the inner cavity of the jet chamber 32 gradually decreases, and the diameter of the water inlet of the jet chamber 32 is larger than that of the jet orifice 37 of the jet chamber 32. With such a setting, the flow velocity at the jet orifice 37 will increase, and the high-speed water flow will suck out the air in the space between the inner cylinder 35 and the outer cylinder 34, forming a vacuum.

[0044] Further, in this embodiment, as Figures 1-4 shown, one side of the outer cylinder 34 is provided with a vacuum port 31 communicating with the collection and extraction structure 6, and is connected to the connecting pipe 61 of the collection and extraction structure 6 through the vacuum port 31, so as to pump water and air. Moreover, the position of the vacuum port 31 is lower than the position of the water outlet of the inner cylinder 35, which can prevent water from flowing back into the collection and extraction structure.

[0045] Further, in this embodiment, as Figure 1 、 Figure 2 and Figure 5 shown, the well flushing structure 7 includes several connected dredging pipes 71 and an impact drill bit 72 connected to the frontmost dredging pipe 71. The dredging pipe 71 is preferably a steel pipe, and two steel pipes are connected by threads. The first dredging pipe is connected to the drain pipe 5, and the frontmost one is connected to the impact drill bit 72.

[0046] The dredging pipe 71 and the impact drill bit 72 in this embodiment are both hollow. Water flows from the drain pipe 5 into the dredging pipe 71 and then flows out from the impact drill bit 72. Moreover, the water outlet diameter at the tip of the impact drill bit is very small. When the water flow passes through here, the flow velocity increases, which is used to impact the ground for well construction.

[0047] Further, in this embodiment, as Figure 1 and Figure 2 shown, the collection and extraction structure 6 includes a connecting pipe 61 communicating with the jet structure 3 and a collection and extraction pipe 62 communicating with the connecting pipe 61. The collection and extraction pipe 62 is connected with several extraction air pipes 63 and several extraction water pipes 64. Second electromagnetic valves 65 electrically connected to the control system 8 are provided on several extraction air pipes 63 and several extraction water pipes 64, and a second water level sensor 67 electrically connected to the control system 8 is installed in the precipitation well 66 of the light well point.

[0048] The collection and extraction structure 6 extracts water and air from the precipitation well 66. The second water level sensor 67 is used to collect the water level data in the precipitation well 66, transmit the data to the control system, and the control system 8 analyzes this data to judge the height of the water level and controls the start and stop of the second electromagnetic valve 65, so as to achieve the purpose of remotely controlling the collection and extraction device 6.

[0049] Further, in this embodiment, as Figure 1 and Figure 6As shown in the figure, the control system 8 includes a signal acquisition module, a data processing module, a threshold analysis module, and an instruction operation module. The signal acquisition module is used to acquire the water level electrical signal, the data processing module is used to convert the acquired data into editable and operable data, the threshold analysis module is used to calculate whether the acquired data exceeds the threshold and the risk range, and the instruction operation module is used for technicians to control the start and stop of the equipment through instructions.

[0050] As Figures 1-5 shown in the figure, the working process of the light well point automatic intelligent well completion and pumping integrated equipment provided in this embodiment is as follows:

[0051] The first water level sensor 44 continuously detects the water level data in the circulation tank 4 and transmits it to the control system 8. The control system 8 controls the motor 1 to drive the centrifugal pump 2 to pump out the water in the circulation tank 4 and discharge it into the drain pipe 5 through the jet structure 3. At this time, a part of the water in the drain pipe 5 flows to the well flushing structure for the well completion construction of the light well point, and the other part of the water flows back to the circulation tank 4 through the circulation pipe 42, so that the centrifugal pump 2 can continuously pump the water in the circulation tank 4 without interruption of flow;

[0052] At the same time, when the water of the centrifugal pump 2 passes through the jet structure 3, the water flow accelerates, forming a space with a negative pressure state around it. The collection and pumping structure 6 is connected to this space, and the collection and pumping structure 6 is connected to the precipitation well through the water suction pipe 64 and the air suction pipe 63. At this time, the water and air in the precipitation well will be sucked into this negative pressure space and flow into the drain pipe 5 along with the high-speed water flow of the jet structure 3.

[0053] The second water level sensor 67 continuously detects the water level data in the precipitation well 66 and transmits it to the control system 8. The control system 8 controls the start and stop of the second electromagnetic valve 65, so as to control the pumping and stopping of the precipitation well.

[0054] In summary, the light well point automatic intelligent well completion and pumping integrated equipment provided in this embodiment combines the well completion construction of the light well point with pumping and air extraction. At the same time, the control system controls the pumping and stopping of the centrifugal pump, the water supply source, and the water in the precipitation well, which can not only save costs and space, but also improve work efficiency through remote operation.

[0055] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, all belong to the protection scope of the present invention.

Claims

1. An integrated device for automatic intelligent well completion and pumping of a light well point, characterized in that: It includes a motor (1), a centrifugal pump (2) connected to the motor (1), a circulation tank (4) communicating with the water inlet of the centrifugal pump (2), a jet structure (3) communicating with the water outlet of the centrifugal pump (2), a drain pipe (5) communicating with the water outlet of the jet structure (3), and a control system (8) for controlling the start and stop of the centrifugal pump (2). The other end of the drain pipe (5) is connected to a well flushing structure (7). The well flushing structure (7) includes several connected dredging pipes (71) and an impact bit (72) connected to the frontmost dredging pipe (71). One side of the jet structure (3) communicates with a collection and pumping structure (6).

2. The integrated equipment for automatic intelligent well completion and pumping of a light well point according to claim 1, characterized in that: The circulation tank (4) communicates with the water inlet of the centrifugal pump (2) through a water inlet pipe (41). The circulation tank (4) communicates with the drain pipe (5) through a circulation pipe (42). A first electromagnetic valve (43) electrically connected to the control system (8) is provided on the circulation pipe (42). A first water level sensor (44) electrically connected to the control system (8) is also provided in the circulation tank (4).

3. A light well point automated intelligent well completion and pumping integrated device according to claim 1, characterized in that: The jet structure (3) includes an outer cylinder (34) and an inner cylinder (35) located inside the outer cylinder (34) and connected to the bottom of the outer cylinder (34). The inner cylinder (35) is hollow to form a jet chamber (33). A vacuum chamber (32) is formed between the outer cylinder (34) and the inner cylinder (35).

4. A light well point automatic intelligent well completion and pumping integrated device according to claim 3, characterized in that: The diameter of the inner cavity of the jet chamber (33) gradually decreases. The center line of the water outlet of the outer cylinder (34) and the center line of the water outlet of the inner cylinder (35) are on the same center line.

5. The integrated equipment for automatic intelligent well completion and pumping of a light well point according to claim 3, characterized in that: One side of the outer cylinder (34) is provided with a vacuum port (31) communicating with the collection and pumping structure (6). The position of the vacuum port (31) is lower than the position of the water outlet of the inner cylinder (35).

6. The integrated equipment for automatic intelligent well completion and pumping of a light well point according to claim 1, characterized in that: The collection and pumping structure (6) includes a connecting pipe (61) communicating with the jet structure (3) and a collection and pumping pipe (62) communicating with the connecting pipe (61). The collection and pumping pipe (62) communicates with several suction pipes (63) and several water suction pipes (64).

7. An integrated device for automatic intelligent well formation and pumping of a light well point, according to claim 6, characterized in that: Second electromagnetic valves (65) electrically connected to the control system (8) are provided on several suction pipes (63) and several water suction pipes (64).

8. The integrated equipment for automatic intelligent well completion and pumping of a light well point according to claim 1, characterized in that: A second water level sensor (67) electrically connected to the control system (8) is installed in the precipitation well of the light well point.

9. The integrated equipment for light well point automatic intelligent well completion and pumping according to claim 1, characterized in that: The control system (8) includes a signal acquisition module, a data processing module, a threshold analysis module, and an instruction operation module.

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