CN220394602U - Positive and negative pressure combined device for deep well precipitation - Google Patents
Positive and negative pressure combined device for deep well precipitation Download PDFInfo
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- CN220394602U CN220394602U CN202321746407.XU CN202321746407U CN220394602U CN 220394602 U CN220394602 U CN 220394602U CN 202321746407 U CN202321746407 U CN 202321746407U CN 220394602 U CN220394602 U CN 220394602U
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- well pipe
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- 238000001556 precipitation Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000005086 pumping Methods 0.000 claims abstract description 53
- 238000000605 extraction Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000000284 extract Substances 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 239000003673 groundwater Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009435 building construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model relates to a positive and negative pressure combined device for deep well dewatering, which comprises a deep well pipe, wherein the deep well pipe is arranged in a deep well; the air supply system comprises an air supply pipe, and one end of the air supply pipe extends into the deep well pipe and is positioned below the liquid level of the deep well pipe; the pumping system comprises a pumping pipe, and one end of the pumping pipe extends into the deep well pipe and is positioned below the liquid level of the deep well pipe; and the air extraction system comprises an air extraction pipe, and one end of the air extraction pipe extends into the deep well pipe and is positioned above the liquid level of the deep well pipe. Compared with the prior art, the air extraction system is arranged, and the air extraction system extracts air which is not fused with water, so that the air pressure in the deep well pipe is reduced or even changed into negative pressure, water near the deep well pipe enters the deep well pipe, and the air supply system and the water pumping system are matched with each other to extract the water in the deep well pipe, thereby reducing the water level in the deep well pipe and improving the precipitation speed of the deep well.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a positive and negative pressure combined device for deep well precipitation.
Background
Deep foundation pit excavation is an important construction procedure of underground structures of modern large-scale buildings, and the lower the groundwater level in the foundation pit is also called groundwater control, namely, the requirements of supporting structures and foundation pit excavation construction are met by lowering the groundwater level in foundation pit engineering construction, and the higher the groundwater level of a construction environment is, the deeper the depth of foundation requirements is, and the greater the construction difficulty is.
A dewatering well (deep well) is arranged in a foundation pit to implement foundation pit dewatering, a deep well is firstly drilled, a well pipe equal to the well depth is arranged in the deep well, sand wells are filled between the inner wall of the deep well and the outer wall of the well pipe to form sand wells, well covers are arranged on the well pipe, and a vacuum water diversion pipe of a negative pressure system and an air water diversion pipe of a positive pressure system penetrate into the well pipe through the well covers to implement dewatering. For example, CN204080838U discloses a deep well dewatering device using a negative pressure air jet for a foundation pit, which fills air into a deep well pipe assembly through a positive pressure system to reduce the density of water, so that the negative pressure system can pump out the water in the deep well pipe assembly.
The prior art solutions described above have the following drawbacks: because the positive pressure system fills air into the deep well pipe assembly, part of the air is not dissolved in water, so that the air pressure of the deep well pipe assembly is increased, and groundwater attached to the deep well pipe assembly is not beneficial to entering the deep well pipe assembly, so that the precipitation speed of a deep well is reduced; although the air holes on the well cover can relieve the problem of overlarge air pressure in the deep well pipe assembly, the air holes can not drive the air pressure in the deep well pipe assembly to be negative pressure, so that the underground water of the deep well pipe assembly accessory enters the deep well pipe assembly at a slower speed, and the precipitation speed of the deep well is reduced.
Disclosure of Invention
Based on the above, the utility model aims to provide a positive-negative pressure combined device for deep well precipitation, which has the advantage of high precipitation efficiency.
The above object of the present utility model is achieved by the following technical solutions:
a positive and negative pressure combination for deep well precipitation comprising:
a deep well pipe, wherein the deep well pipe is arranged in a deep well;
the air supply system comprises an air supply pipe, and one end of the air supply pipe extends into the deep well pipe and is positioned below the liquid level of the deep well pipe;
the pumping system comprises a pumping pipe, and one end of the pumping pipe extends into the deep well pipe and is positioned below the liquid level of the deep well pipe;
and the air extraction system comprises an air extraction pipe, and one end of the air extraction pipe extends into the deep well pipe and is positioned above the liquid level of the deep well pipe.
The utility model is further provided with: the air extraction system further comprises an air extraction pump, the air extraction pump is arranged outside the deep well pipe and connected with the air extraction pipe, and the air extraction pump is used for extracting gas in the deep well pipe through the air extraction pipe.
The utility model is further provided with: the water pumping system further comprises a water pump, the water pump is arranged outside the deep well pipe and connected with the water pumping pipe, and the water pump pumps out water in the deep well pipe through the water pumping pipe.
The utility model is further provided with: the gas supply system further comprises a gas supply device, wherein the gas supply device is arranged outside the deep well pipe, the gas supply device is connected with the gas supply pipe, and the gas supply device supplies gas into the deep well pipe through the gas supply pipe.
The utility model is further provided with: the control unit is respectively connected with the air supply system, the pumping system and the control end of the air extraction system, and the control unit is used for respectively controlling the air supply system, the pumping system and the air extraction system.
The utility model is further provided with: the water pumping system comprises a water pump, the first vacuum meter is connected with the water pump, and the first vacuum meter is connected with the control unit.
The utility model is further provided with: the deep well pipe is connected with the control unit through the deep well pipe, and the deep well pipe is connected with the control unit through the deep well pipe.
The utility model is further provided with: the deep well pipe comprises a pipe body and a pipe cover in sealing connection with the pipe body, wherein the pipe cover is provided with holes for the air supply pipe, the water suction pipe and the air suction pipe to pass through, and the pipe cover is respectively in sealing connection with the air supply pipe, the water suction pipe and the air suction pipe.
The utility model is further provided with: the periphery wall of the pipe body is provided with a filtering hole, and the pipe body is communicated with a deep well through the filtering hole.
The utility model is further provided with: the pipe body is provided with a filter, the filter is positioned below the liquid level of the pipe body, and the air supply pipe and the water suction pipe extend into the filter and are connected with the filter.
In summary, the beneficial technical effects of the utility model are as follows:
the utility model provides a positive and negative pressure combined device for deep well dewatering, which is characterized in that gas is sent into water in a deep well pipe through an air supply system, so that the gas and the water form a water-vapor mixture, the density of the water is reduced, and the water-vapor mixture is pumped out of the deep well pipe by a water pumping system; because the gas is not completely melted in the water, in the actual construction process, part of the gas overflows from the water and stays in the deep well pipe and is positioned above the water surface, so that the pressure of the gas in the deep well pipe is high, and the water near the deep well pipe is not beneficial to entering the deep well pipe; compared with the prior art, the air extraction system is arranged, the air extraction system extracts air which is not fused into water, so that the air pressure in the deep well pipe is reduced or even changed into negative pressure, water near the deep well pipe enters the deep well pipe, the air supply system and the water pumping system are matched with each other to extract the water in the deep well pipe, the water level in the deep well pipe is reduced, the precipitation speed of a deep well is improved, and the efficiency of building construction is improved.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Fig. 1 is a schematic view of the structure of the device of the present utility model.
In the figure, 1, a deep well pipe; 11. a tube body; 111. a filter hole; 12. a tube cover; 2. an air supply system; 21. an air supply pipe; 22. an air supply device; 3. a water pumping system; 31. a water pumping pipe; 32. a water pump; 4. an air extraction system; 41. an exhaust pipe; 42. an air extracting pump; 5. a first vacuum gauge; 6. a second vacuum gauge; 7. a filter; 8. ground surface; 9. and a drainage ditch.
Detailed Description
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible mentioned in this specification are defined with respect to their construction, and they are relative concepts. Therefore, the position and the use state of the device may be changed accordingly. These and other directional terms should not be construed as limiting terms.
The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of implementations consistent with aspects of the present disclosure.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
The present utility model will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the positive and negative pressure combined device for deep well precipitation disclosed by the utility model comprises a deep well pipe 1, an air supply system 2, a water pumping system 3 and an air pumping system 4; the deep well pipe 1 is arranged in a deep well of the foundation pit ground 8; the air supply system 2 includes an air supply pipe 21 and an air supply device 22, the air supply device 22 is arranged outside the deep well pipe 1, the air supply device 22 is connected with the air supply pipe 21, the air supply device 22 supplies air (usually air) into the deep well pipe 1 through the air supply pipe 21, one end of the air supply pipe 21 extends into the deep well pipe 1 and is positioned below the liquid surface (water surface) of the deep well pipe 1, so that the air supplied into the deep well pipe 1 through the air supply pipe 21 by the air supply device 22 is mixed with water to form a water-vapor mixture, and the effect of reducing the density of the water is achieved; the air supply device 22 may be an air compressor, the air supply device 22 may be an air pump, and the air supply device 22 may be another device that can supply air into the deep well pipe 1 through the air supply pipe 21. The pumping system 3 comprises a pumping pipe 31 and a pumping pump 32, one end of the pumping pipe 31 extends into the deep well pipe 1 and is positioned below the liquid level of the deep well pipe 1, the pumping pump 32 is arranged outside the deep well pipe 1, the pumping pump 32 is connected with the other end of the pumping pipe 31, and the pumping pump 32 pumps water in the deep well pipe 1 through the pumping pipe 31; the ground 8 is also provided with a drainage ditch 9, the drainage ditch 9 is positioned outside the foundation pit, and the water pump 32 discharges water pumped from the deep well pipe 1 to the drainage ditch 9 through a pipe. The air extraction system 4 comprises an air extraction pipe 41 and an air extraction pump 42, one end of the air extraction pipe 41 extends into the deep well pipe 1 and is positioned above the liquid level of the deep well pipe 1, the air extraction pump 42 is arranged outside the deep well pipe 1, the air extraction pump 42 is connected with the other end of the air extraction pipe 41, and the air extraction pump 42 extracts air in the deep well pipe 1 through the air extraction pipe 41, so that the air pressure in the deep well pipe 1 becomes small or even negative, and water near the deep well pipe 1 conveniently enters the deep well pipe 1.
The application sends gas into water in the deep well pipe 1 through the gas feeding system 2, so that the gas and the water form a water-vapor mixture, the density of the water is reduced, and the water pumping system 3 is convenient for pumping the water-vapor mixture out of the deep well pipe 1; because the gas is not completely melted in the water, in the actual construction process, part of the gas overflows from the water and stays in the deep well pipe 1 and is positioned above the water surface, so that the air pressure in the deep well pipe 1 is high, and the water near the deep well pipe 1 is not beneficial to entering the deep well pipe 1; compared with the prior art, the air extraction system 4 is arranged, the air extraction system 4 extracts air which is not fused with water, so that the air pressure in the deep well pipe 1 is reduced or even changed into negative pressure, water near the deep well pipe 1 enters the deep well pipe 1, the air supply system 2 and the water pumping system 3 are matched with each other to extract the water in the deep well pipe 1, the water level in the deep well pipe 1 is reduced, the precipitation speed of the deep well is improved, and the efficiency of building construction is improved. It should be noted that the depth of the deep well is usually 8 to 15 m, so the length of the deep well pipe 1 is usually 8 to 15 m, and the length of some deep well pipes 1 is even more than 15 m, just because the length of the deep well pipe 1 is long, and the water in the deep well is mixed with mud, if the water is pumped by means of the high-power water pump, the cost of deep well precipitation is high, and the high-power water pump is easy to damage.
In some embodiments, the deep well pipe 1 further comprises a control unit, wherein the control unit is respectively connected with control ends of the air supply system 2, the water pumping system 3 and the air pumping system 4, namely, the control unit is respectively connected with the air supply device 22, the water pumping system 32 and the air pumping pump 42, so that the control unit respectively controls the air supply system 2, the water pumping system 3 and the air pumping system 4 to pump out water in the deep well pipe 1, air in the deep well pipe 1 is pumped out through the air pumping system 4, and air is supplied to the deep well pipe 1 through the air supply system 2, so that the vacuum degree of the deep well pipe 1 is dynamically controlled, the efficiency of pumping system 3 for pumping out water in the deep well pipe 1 is improved, and the dewatering efficiency of the deep well is improved. The system further comprises a first vacuum gauge 5 and a second vacuum gauge 6, wherein the first vacuum gauge 5 is connected with the water suction pump 32, the first vacuum gauge 5 is used for detecting the pressure and the vacuum degree of the water suction pump 32 during water suction, the first vacuum gauge 5 is connected with the control unit, and the control unit is used for reading the detection value of the first vacuum gauge 5 and controlling the efficiency of the air supply system 2 for supplying air into the deep well pipe 1 according to the detection value; it should be noted that the control unit reads the detection value of the first vacuum table 5 and controls the air supply system 2 according to the detection value using the prior art. The second vacuum gauge 6 is connected with the deep well pipe 1, the second vacuum gauge 6 is used for detecting the air pressure of the deep well pipe 1, the second vacuum gauge 6 is connected with the control unit, the control unit is used for reading the detection value of the second vacuum gauge 6 and controlling the air pumping system 4 to pump out the air in the deep well pipe 1 according to the detection value, and the control unit is used for reading the detection value of the second vacuum gauge 6 and controlling the air pumping system 4 according to the detection value to achieve the aim of adopting the prior art.
In some embodiments, the deep well pipe 1 comprises a pipe body 11 and a pipe cover 12 in sealing connection with the pipe body 11, the pipe cover 12 is provided with holes for the air supply pipe 21, the water suction pipe 31 and the air suction pipe 41 to pass through, and the pipe cover 12 is respectively in sealing connection with the air supply pipe 21, the water suction pipe 31 and the air suction pipe 41 so as to limit air from entering the deep well pipe 1 from the connection part of the pipe body 11 and the pipe cover 12, the connection part of the pipe cover 12 and the air supply pipe 21, the connection part of the pipe cover 12 and the water suction pipe 31 and the connection part of the pipe cover 12 and the air suction pipe 41. An opening is arranged at the bottom of the pipe body 11 so that water in the deep well can enter the pipe body 11 through the opening; the peripheral wall of the pipe body 11 is provided with a filtering hole 111, and the pipe body 11 is communicated with a deep well through the filtering hole 111 so that water in the deep well enters the pipe body 11 through the filtering hole 111.
In some embodiments, the pipe body 11 is provided with a filter 7, the filter 7 is positioned below the liquid surface of the pipe body 11, a distance exists between the filter 7 and the bottom of the deep well pipe 1, the air supply pipe 21 and the water suction pipe 31 extend into the filter 7 and are connected with the filter 7, and the filter 7 plays a role in limiting the blocking of the air supply pipe 21 and the water suction pipe 31.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. A positive and negative pressure combination for deep well precipitation, comprising:
a deep well pipe (1), wherein the deep well pipe (1) is arranged in a deep well;
an air supply system (2), wherein the air supply system (2) comprises an air supply pipe (21), and one end of the air supply pipe (21) extends into the deep well pipe (1) and is positioned below the liquid level of the deep well pipe (1);
the pumping system (3) comprises a pumping pipe (31), and one end of the pumping pipe (31) extends into the deep well pipe (1) and is positioned below the liquid level of the deep well pipe (1);
and the air extraction system (4) comprises an air extraction pipe (41), and one end of the air extraction pipe (41) extends into the deep well pipe (1) and is positioned above the liquid level of the deep well pipe (1).
2. A positive and negative pressure combination for deep well precipitation as claimed in claim 1, wherein: the air extraction system (4) further comprises an air extraction pump (42), the air extraction pump (42) is arranged outside the deep well pipe (1), the air extraction pump (42) is connected with the air extraction pipe (41), and the air extraction pump (42) extracts air in the deep well pipe (1) through the air extraction pipe (41).
3. A positive and negative pressure combination for deep well precipitation as claimed in claim 1, wherein: the water pumping system (3) further comprises a water pump (32), the water pump (32) is arranged outside the deep well pipe (1), the water pump (32) is connected with the water pumping pipe (31), and the water pump (32) pumps out water in the deep well pipe (1) through the water pumping pipe (31).
4. A positive and negative pressure combination for deep well precipitation as claimed in claim 1, wherein: the gas supply system (2) further comprises a gas supply device (22), the gas supply device (22) is arranged outside the deep well pipe (1), the gas supply device (22) is connected with the gas supply pipe (21), and the gas supply device (22) supplies gas into the deep well pipe (1) through the gas supply pipe (21).
5. A positive and negative pressure combination for deep well precipitation as claimed in claim 1, wherein: the system further comprises a control unit, wherein the control unit is respectively connected with the air supply system (2), the water pumping system (3) and the control end of the air pumping system (4), and the control unit is used for respectively controlling the air supply system (2), the water pumping system (3) and the air pumping system (4).
6. A positive and negative pressure combination for deep well precipitation as claimed in claim 5, wherein: the water pumping system (3) comprises a water pump (32), the first vacuum meter (5) is connected with the water pump (32), and the first vacuum meter (5) is connected with the control unit.
7. A positive and negative pressure combination for deep well precipitation as claimed in claim 5, wherein: the deep well pipe further comprises a second vacuum gauge (6), wherein the second vacuum gauge (6) is connected with the deep well pipe (1), and the second vacuum gauge (6) is connected with the control unit.
8. A positive and negative pressure combination for deep well precipitation as claimed in claim 1, wherein: the deep well pipe (1) comprises a pipe body (11) and a pipe cover (12) which is in sealing connection with the pipe body (11), the pipe cover (12) is provided with holes for the air supply pipe (21), the water suction pipe (31) and the air suction pipe (41) to penetrate through, and the pipe cover (12) is respectively in sealing connection with the air supply pipe (21), the water suction pipe (31) and the air suction pipe (41).
9. A positive and negative pressure combination for deep well precipitation as claimed in claim 8, wherein: the periphery wall of the pipe body (11) is provided with a filtering hole (111), and the pipe body (11) is communicated with a deep well through the filtering hole (111).
10. A positive and negative pressure combination for deep well precipitation as claimed in claim 8, wherein: the pipe body (11) is provided with a filter (7), the filter (7) is positioned below the liquid level of the pipe body (11), and the air supply pipe (21) and the water suction pipe (31) extend into the filter (7) and are connected with the filter (7).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746407.XU CN220394602U (en) | 2023-07-04 | 2023-07-04 | Positive and negative pressure combined device for deep well precipitation |
| JP2023002564U JP3244156U (en) | 2023-07-04 | 2023-07-18 | Positive and negative pressure linkage device used to lower water level in deep wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746407.XU CN220394602U (en) | 2023-07-04 | 2023-07-04 | Positive and negative pressure combined device for deep well precipitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220394602U true CN220394602U (en) | 2024-01-26 |
Family
ID=88326038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321746407.XU Active CN220394602U (en) | 2023-07-04 | 2023-07-04 | Positive and negative pressure combined device for deep well precipitation |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3244156U (en) |
| CN (1) | CN220394602U (en) |
-
2023
- 2023-07-04 CN CN202321746407.XU patent/CN220394602U/en active Active
- 2023-07-18 JP JP2023002564U patent/JP3244156U/en active Active
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| Publication number | Publication date |
|---|---|
| JP3244156U (en) | 2023-10-16 |
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