CN114991191B - Duplex vacuum negative pressure dewatering and pumping integrated well pipe - Google Patents
Duplex vacuum negative pressure dewatering and pumping integrated well pipe Download PDFInfo
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- CN114991191B CN114991191B CN202210602328.5A CN202210602328A CN114991191B CN 114991191 B CN114991191 B CN 114991191B CN 202210602328 A CN202210602328 A CN 202210602328A CN 114991191 B CN114991191 B CN 114991191B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/406—Aquifer recharge
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Abstract
The invention provides a duplex vacuum negative pressure dewatering and pumping integrated well pipe. The invention relates to a duplex vacuum negative pressure dewatering and pumping integrated well pipe which comprises a well pipe body, wherein a well cover is covered above the well pipe body, a conversion valve is arranged on the well cover, a negative pressure pipe, a water pumping pipe and a pumping device are arranged in the well pipe body, a plurality of negative pressure ports communicated with the well pipe body are formed in the negative pressure pipe, the lower end of the negative pressure pipe is closed, the upper end of the negative pressure pipe is connected with a vacuum negative pressure pump through the conversion valve, the water pumping pipe is arranged in the negative pressure pipe, the lower end of the water pumping pipe is communicated with the pumping device positioned at the bottom of the well pipe body, and the upper end of the water pumping pipe penetrates out through the conversion valve. The duplex vacuum negative pressure dewatering and pumping integrated well pipe integrates vacuumizing and pumping operations, and a power source only adopts a vacuum negative pressure pump, so that electric energy can be greatly saved, the overall manufacturing and construction cost is reduced, and the duplex vacuum negative pressure dewatering and pumping integrated well pipe has the advantages of convenience in maintenance and overhaul, low cost, small construction amount, rapid paving and the like.
Description
Technical Field
The invention relates to the technical field of well pipes, in particular to a duplex vacuum negative pressure dewatering and pumping integrated well pipe.
Background
The vacuum negative pressure dewatering adopts a vacuum negative pressure water collecting mode, and water in soil layer pores is extracted by utilizing vacuum suction force, so that the groundwater level in the soil layer is reduced, the physical property of the soil layer can be changed in the process, and the excavated soil layer is compact and dry. The groundwater discharged from the vacuum well point is clean water, so that no loss of solid particles exists, and in addition, the vacuum negative pressure can completely inhibit damages such as sand flow, piping and the like caused by the upward movement of the groundwater.
At present, the vacuum negative pressure well pipe has the following defects: 1) The vacuum pump and the submersible pump are adopted for dual-energy driving, so that the power consumption is high, the laying workload is high, and the construction cost is high; 2) The vacuum pump is directly connected with the vacuum negative pressure well pipe to apply negative pressure to the vacuum negative pressure well pipe, so that the negative pressure efficiency is low and the negative pressure effect is poor.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a duplex vacuum negative pressure dewatering and pumping integrated well pipe, which integrates vacuumizing and pumping operations, and a power source only adopts a vacuum negative pressure pump, so that electric energy can be greatly saved, the overall manufacturing and construction cost is reduced, and the duplex vacuum dewatering and pumping integrated well pipe has the advantages of convenience in maintenance and overhaul, low cost, less construction amount, rapid paving and the like.
The invention provides a duplex vacuum negative pressure dewatering and pumping integrated well pipe, which comprises a well pipe body, wherein a well cover is covered above the well pipe body, a conversion valve is arranged on the well cover, a negative pressure pipe, a water pumping pipe and a water pumping device are arranged in the well pipe body, a plurality of negative pressure ports communicated with the well pipe body are formed in the negative pressure pipe, the lower end of the negative pressure pipe is closed, the upper end of the negative pressure pipe is connected with a vacuum negative pressure pump through the conversion valve, the water pumping pipe is arranged in the negative pressure pipe, the lower end of the water pumping pipe is communicated with the water pumping device positioned at the bottom of the well pipe body, and the upper end of the water pumping pipe penetrates out from the conversion valve.
In an embodiment, the change-over valve includes valve body and disk seat, and the valve body passes through the disk seat to be fixed on the well lid, is equipped with sealed change-over chamber and negative pressure in the valve body inside, and the negative pressure pipe upper end passes through pipeline sealing connection spare and sealed change-over chamber intercommunication, and sealed change-over chamber is connected with the vacuum negative pressure pump through the negative pressure in-tube, is equipped with the water pumping mouth on sealed change-over chamber, and the water pumping mouth is worn out from the water pumping mouth upper end.
Further, a sealing rubber ring is arranged between the negative pressure pipe and the pipeline sealing connecting piece, and a regulating valve is arranged between the negative pressure inlet pipe and the vacuum negative pressure pump.
In an embodiment, the pumping device comprises a negative pressure cover, a pumping cover and a waterproof elastic film, wherein the pumping cover is arranged inside the negative pressure cover, the waterproof elastic film is horizontally arranged between the pumping cover and the negative pressure cover and separates the negative pressure cover into a negative pressure cavity and a water inlet cavity, the pumping cover is internally provided with a pumping cavity, the lower end of a negative pressure pipe is communicated with the negative pressure cavity, the lower end of the pumping pipe is communicated with the pumping cavity, and a water inlet is arranged at the bottoms of the water inlet cavity and the pumping cavity.
Further, the negative pressure cover and the water pumping cover are bell-shaped.
Further, a space is arranged between the bottom of the water pumping cover and the bottom of the well pipe body, and the setting position of the waterproof elastic film is higher than the bottom of the water pumping cover.
In one embodiment, the negative pressure pipe and the water suction pipe are arranged in a spiral winding mode, and the spiral winding radius of the negative pressure pipe and the spiral winding radius of the water suction pipe are adjustable.
Further, a space is arranged between the outer wall of the negative pressure pipe and the inner wall of the well pipe body, and a space is arranged between the bottom of the negative pressure pipe and the bottom of the well pipe body.
Further, no negative pressure ports are formed in the negative pressure pipe near the bottom of the well pipe body, and the number of negative pressure ports facing the side of the well pipe body is greater than that of negative pressure ports facing the side of the well pipe body.
Further, the negative pressure pipe is fixed above the bottom of the well pipe body through a plurality of detachable supporting frameworks.
Compared with the prior art, the invention has at least the following advantages:
1. the duplex vacuum negative pressure dewatering and pumping integrated well pipe of the invention is provided with the pumping pipe inside the negative pressure pipe, so that the vacuumizing and pumping operation can be integrated, and the power source of the duplex vacuum negative pressure dewatering and pumping integrated well pipe only adopts the vacuum negative pressure pump, thereby greatly saving electric energy, reducing the whole manufacturing cost, being suitable for being popularized and used in a large range and being convenient for maintenance and overhaul;
2. according to the duplex vacuum dewatering and pumping integrated well pipe, the water suction pipe and the negative pressure pipe are sleeved together, and meanwhile, the water suction pipe and the negative pressure pipe are separated through the switching valve, so that the construction quantity can be greatly reduced, the construction cost is reduced, and rapid laying is realized;
3. the negative pressure pipe is arranged in the well pipe body and is provided with a narrower interval with the inner wall of the well pipe body, meanwhile, the negative pressure ports on the negative pressure pipe are communicated with the well pipe body, the number of negative pressure ports on one side of the negative pressure pipe facing the well pipe body is larger than that of negative pressure ports on one side of the negative pressure pipe facing away from the well pipe body, the arrangement mode can quickly vacuumize the area between the negative pressure pipe and the well pipe body, so that the inside and the peripheral soil body of the well pipe body form a certain vacuum degree, pore water of a weakly permeable soil layer is permeated and increased from high pressure to low pressure under the action of atmospheric pressure and the gravity of the soil body, and the collection speed of radial running water to the inside of the well pipe body is also greatly improved, so that the vacuumizing speed and the pumping effect can be greatly improved, rain sewage can be discharged as soon as possible, the accumulation of the rain sewage is avoided, and the working efficiency of sewage extraction is greatly increased;
4. the negative pressure pipe and the water suction pipe can be arranged in a spiral winding mode, and the spiral winding radius of the negative pressure pipe and the spiral winding radius of the water suction pipe are adjustable, so that the negative pressure pipe and the water suction pipe can be used in well pipes of different types only by adjusting the spiral winding radius of the negative pressure pipe and the water suction pipe when the negative pressure pipe and the water suction pipe are paved, and the negative pressure pipe and the water suction pipe are particularly suitable for reconstruction of old well pipes in different areas;
5. the water pumping device is characterized in that the water pumping cover is arranged in the negative pressure cover, when the water pumping device is used, air in the negative pressure cavity in the negative pressure cover is pumped out to enable the negative pressure cavity to form negative pressure, when the water level in the water inlet cavity is higher than the bottom position of the water pumping cavity, water in the water inlet cavity exerts acting force on air between the water inlet cavity and the waterproof elastic film, the air is compressed and exerts acting force on the waterproof elastic film, the waterproof elastic film deforms and simultaneously exerts reaction on the compressed air, the compressed air exerts reaction force on water in the water inlet cavity, and the water is pressed into the water pumping cavity and flows in through the water pumping pipe, and the water pumping effect of the water pumping mode is good;
6. the negative pressure cover and the water pumping cover can be respectively provided with a bell-shaped shape, the shape is favorable for accumulating water at the inlet of the water pumping cover, and meanwhile, the water-proof elastic film is combined, so that the elastic performance of the water-proof elastic film can be well utilized to apply acting force to water and compressed air;
7. the negative pressure pipe can be fixed above the bottom of the well pipe body by a plurality of detachable supporting ribs, the mode is convenient for water and gas to circulate, water flows into the bottom of the well pipe body and is pumped by the pumping device, and the pumping effect is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a composite vacuum negative pressure dewatering and pumping integrated well pipe according to an embodiment;
FIG. 2 is a schematic diagram showing the distribution of negative pressure pipes according to an embodiment;
FIG. 3 is a schematic view of the internal structure of a pumping device according to an embodiment;
FIG. 4 is a schematic diagram of a switching valve according to an embodiment;
FIG. 5 is a right side view of a diverter valve according to one embodiment;
FIG. 6 is a schematic diagram showing an internal structure of a switching valve according to an embodiment;
FIG. 7 is a schematic perspective view of a switching valve according to an embodiment;
fig. 8 is a schematic structural view of a detachable support frame according to an embodiment.
Reference numerals illustrate:
1: a well cover; 2: a switching valve; 3: a well tubular body; 4: a water pumping pipe; 5: a negative pressure pipe; 6: a water pumping device; 7: a negative pressure chamber; 8: a waterproof elastic film; 9: a water pumping cavity; 10: a water pumping cover; 11: a water inlet cavity; 12: sealing the conversion cavity; 13: a negative pressure inlet pipe; 14: a regulating valve; 15: a valve seat; 16: a pipe seal connection; 17: a negative pressure cover; 18: a water inlet; 19: and the support framework can be disassembled.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms also include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 8, the present embodiment provides a duplex vacuum negative pressure dewatering and pumping integrated well pipe, which comprises a well pipe body 3, a well cover 1 is covered above the well pipe body 3, a switching valve 2 is installed on the well cover 1, a negative pressure pipe 5, a pumping pipe 4 and a pumping device 6 are arranged inside the well pipe body 3, a plurality of negative pressure ports communicated with the well pipe body 3 are formed in the negative pressure pipe 5, the lower end of the negative pressure pipe 5 is closed, the upper end of the negative pressure pipe is connected with a vacuum negative pressure pump through the switching valve 2, the pumping pipe 4 is arranged inside the negative pressure pipe 5, the lower end of the pumping pipe 4 is communicated with the pumping device 6 positioned at the bottom of the well pipe body 3, and the upper end of the pumping pipe 4 penetrates out from the switching valve 2.
The duplex vacuum negative pressure dewatering and pumping integrated well pipe of the embodiment is provided with the pumping pipe 4 inside the negative pressure pipe 5, so that vacuumizing and pumping operation can be integrated, a power source of the duplex vacuum dewatering and pumping integrated well pipe only adopts a vacuum negative pressure pump, electric energy can be greatly saved, the whole manufacturing cost is reduced, meanwhile, maintenance and overhaul can be conveniently carried out, and the duplex vacuum dewatering and pumping integrated well pipe is suitable for being popularized and used in a large range.
The specific structure and the arrangement mode of the negative pressure pipe 5 are not strictly limited, and the negative pressure pipe can be reasonably arranged according to actual needs. Specifically, a space can be arranged between the outer wall of the negative pressure pipe 5 and the inner wall of the well pipe body 3, the arrangement mode is convenient for quickly vacuumizing the area between the negative pressure pipe 5 and the well pipe body 3, so that a certain vacuum degree is formed in the well pipe body 3 and the surrounding soil body, the infiltration of pore water of the weakly permeable soil layer from high pressure to low pressure is increased under the action of atmospheric pressure and soil body gravity, the collection speed of radial running water to the inside of the well pipe body 3 is also greatly improved, the vacuumizing speed and the pumping effect can be greatly improved, rain and sewage can be discharged as soon as possible, rain and sewage are prevented from accumulating, and the working efficiency of sewage extraction is greatly increased. In addition, a space can be arranged between the bottom of the negative pressure pipe 5 and the bottom of the well pipe body 3, the negative pressure pipe 5 can be fixed above the bottom of the well pipe body 3 by a plurality of detachable supporting frameworks 19 for a certain distance, at this time, water and gas can flow conveniently, and water can be pumped by the pumping device 6 when flowing into the bottom of the well pipe body 3.
The plurality of negative pressure ports on the negative pressure pipe 5 are mainly used for communicating with the well pipe body 3 so as to vacuumize the interior of the well pipe body 3, and the setting positions of the plurality of negative pressure ports are not strictly limited. Specifically, the negative pressure pipe 5 near the bottom of the well pipe body 3 is not provided with a negative pressure port, so that the water at the bottom of the well pipe body 3 is prevented from flowing into the negative pressure pipe 5; in addition, the number of the negative pressure ports facing to the side of the well pipe body 3 can be set to be more than the number of the negative pressure ports facing to the side of the well pipe body 3, so that the area between the negative pressure pipe 5 and the well pipe body 3 can be vacuumized quickly, a certain vacuum degree is formed in the well pipe body 3 and the soil body around the well pipe body, and the vacuumizing speed and the pumping effect can be improved.
The negative pressure pipe 5 and the water suction pipe 4 can be arranged in a spiral winding mode, the spiral winding radius of the negative pressure pipe 5 and the spiral winding radius of the water suction pipe 4 are adjustable, and the negative pressure pipe 5 and the water suction pipe 4 can be used for well pipes of different types only by adjusting the spiral winding radius of the negative pressure pipe 5 and the water suction pipe 4 when being paved, so that the negative pressure pipe is particularly suitable for reconstruction of old well pipes in different areas.
The switching valve 2 is mainly used for separating the pumping pipe 4 and the negative pressure pipe 5 which are sleeved together, so that the construction amount is reduced, the construction cost is reduced, and the rapid laying is realized. The structure of the switching valve 2 is not strictly limited; specifically, the switching valve 2 may include a valve body and a valve seat 15, the valve body is fixed on the well lid 1 through the valve seat 15, a sealing switching cavity 12 and a negative pressure inlet pipe 13 are arranged in the valve body, the upper end of the negative pressure pipe 5 is communicated with the sealing switching cavity 12 through a pipeline sealing connecting piece 16, the sealing switching cavity 12 is connected with a vacuum negative pressure pump through the negative pressure inlet pipe 13, a water pumping port is arranged on the sealing switching cavity 12, and the upper end of the water pumping pipe 4 penetrates out from the water pumping port.
Further, in order to improve the sealing performance of the negative pressure pipe 5, a sealing rubber ring may be provided between the negative pressure pipe 5 and the pipe sealing connector 16; in order to increase the vacuum effect of the negative pressure pipe 5, a regulating valve 14 may also be provided between the negative pressure inlet pipe 13 and the vacuum negative pressure pump.
The pumping device 6 is mainly used for pumping water inside the well pipe body 3 to the pumping pipe 4. The structure of the water pumping device 6 is not strictly limited; specifically, the water pumping device 6 may include a negative pressure cover 17, a water pumping cover 10 and a waterproof elastic film 8, the water pumping cover 10 is arranged inside the negative pressure cover 17, the waterproof elastic film 8 is horizontally arranged between the water pumping cover 10 and the negative pressure cover 17 and divides the negative pressure cover 17 into a negative pressure cavity 7 and a water inlet cavity 11, the water pumping cover 10 is internally provided with a water pumping cavity 9, the lower end of the negative pressure pipe 5 is communicated with the negative pressure cavity 7, the lower end of the water pumping pipe 4 is communicated with the water pumping cavity 9, and water inlets 18 are arranged at the bottoms of the water inlet cavity 11 and the water pumping cavity 9. The water pumping device 6 is characterized in that the water pumping cover 10 is arranged inside the negative pressure cover 17, when the water pumping device is used, air in the negative pressure cavity 7 in the negative pressure cover 17 is pumped out to enable the negative pressure cavity 7 to form negative pressure, when the water level in the water inlet cavity 11 is higher than the bottom position of the water pumping cavity 9, the water in the water inlet cavity 11 exerts acting force on the air between the water inlet cavity 11 and the waterproof elastic film 8, the air is compressed and exerts acting force on the waterproof elastic film 8, the waterproof elastic film 8 deforms and simultaneously exerts reaction on the compressed air, the compressed air exerts reaction force on the water in the water inlet cavity 11, the water is pressed into the water pumping cavity 9 and flows in through the water pumping pipe 4, and the water pumping effect of the water pumping mode is good.
The suction cap 17 and the suction cap 10 may be configured in a bell-shaped manner, in which case it is convenient to collect water at the inlet of the suction cap 10, so as to better force water out of the suction chamber 9. In order to increase the degree of vacuum formed in the interior of the well pipe body 3 and the surrounding soil body, a space is provided between the bottom of the water pump cover 10 and the bottom of the well pipe body 3, so that a vacuum layer is formed between the two, and the interior of the well pipe body 3 and the surrounding soil body can be vacuumized in a larger area. In addition, in order to feed water as soon as possible, a plurality of water inlets 18 may be provided around the water inlet chamber 11; in order to facilitate the application of pressure to the water, the waterproof elastic membrane 8 may be disposed at a position higher than the bottom of the water suction cap 10.
In one embodiment, the duplex vacuum negative pressure dewatering and pumping integrated well pipe comprises a well pipe body 3, a well cover 1 arranged above the well pipe body 3, a switching valve 2, a negative pressure pipe 5, a water pumping pipe 4, a water pumping device 6 and a vacuum negative pressure pump (not shown), wherein the negative pressure pipe 5 is spirally wound on the inner side of the well pipe body 3, the negative pressure pipe 5 is hollow, a plurality of negative pressure ports are formed in the negative pressure pipe 5 far away from the bottom of the well pipe body 3, the water pumping pipe 4 is arranged in the negative pressure pipe 5, the switching valve 2 comprises a valve body, a valve seat 15, a sealing switching cavity 12 and a negative pressure inlet pipe 13, the valve body is fixed on the well cover 1 through the valve seat 15, the sealing switching cavity 12 is arranged in the valve body, a pipeline sealing connecting piece 16 is arranged at the bottom of the sealing switching cavity 12, the upper end of the negative pressure pipe 5 is communicated with the sealing switching cavity 12 after sequentially passing through the valve seat 15 and the pipeline sealing connecting piece 16, the upper end of the pumping pipe 4 sequentially passes through the valve seat 15, the pipeline sealing connecting piece 16 and the sealing conversion cavity 12 and then extends out of the pumping port, one end of the negative pressure inlet pipe 13 is communicated with the sealing conversion cavity 12, the other end is connected with the vacuum negative pressure pump, the pumping device 6 is arranged at the bottom of the well pipe body 3, the pumping device 6 comprises a negative pressure cover 17, a pumping cover 10, a water inlet cavity 11, a pumping cavity 9 and a waterproof elastic film 8, the pumping cover 10 is arranged at the inner side of the negative pressure cover 17, the waterproof elastic film 8 is arranged between the outer side of the pumping cover 10 and the inner side of the negative pressure cover 17, the negative pressure cover 17 is divided into the negative pressure cavity 7 and the water inlet cavity 11 through the waterproof elastic film 8, a plurality of water inlets 18 are formed at the bottom of the negative pressure cover 17 and communicated with the lower end of the negative pressure pipe 5, the pumping cover 10 is internally provided with the pumping cavity 9, the pumping cover 10 is communicated with the lower end of the pumping pipe 4, a certain distance is arranged between the negative pressure pipe 5 and the inner wall of the well pipe body 3, and the number of the negative pressure ports on the negative pressure pipe 5 on the side close to the well pipe body 3 is more than the number of the negative pressure ports on the negative pressure pipe 5 on the side far from the well pipe body 3.
The working principle of the duplex vacuum negative pressure dewatering and pumping integrated well pipe of the embodiment is as follows:
after the vacuum negative pressure pump is started, air in the well pipe body 3 enters the negative pressure pipe 5 through a negative pressure port on the negative pressure pipe 5, then enters a sealed conversion cavity 12 in the conversion valve 2, is vacuumized by a negative pressure inlet pipe 13, and is then input to the outside by the vacuum negative pressure pump, as the negative pressure port on the negative pressure pipe 5 is opposite to the inner wall of the well pipe body 3, the vacuum degree is formed by continuously pumping air through the vacuum negative pressure pump, pore water in the weakly permeable soil layer permeates from high pressure to low pressure under the action of atmospheric pressure and soil body gravity, the speed of collecting runoff water into the well is increased, the pumped water flows into the well pipe body 3, and the water in the water inlet cavity 11 in the water pumping device 6 continuously rises; simultaneously, the air in the negative pressure cavity in the negative pressure cover 17 of the water pumping device 6 is also pumped out, so that the negative pressure cavity 7 is formed into negative pressure, when the water level in the water inlet cavity 11 is higher than the bottom position of the water pumping cavity 9, the water in the water inlet cavity 11 exerts acting force on the air between the water inlet cavity 11 and the waterproof elastic film 8, the air is compressed, the acting force is exerted on the waterproof elastic film 8, the waterproof elastic film 8 deforms and simultaneously exerts reaction on the compressed air, and the compressed air also exerts reaction force on the water in the water inlet cavity 11, so that the water is pressed into the water pumping cavity 9 and flows in through the water pumping pipe 4, and water pumping is realized.
The duplex vacuum negative pressure dewatering and pumping integrated well pipe integrates vacuumizing and pumping operation, and the power source only adopts the vacuum negative pressure pump, so that electric energy can be greatly saved, the overall manufacturing and construction cost is reduced, and the duplex vacuum dewatering and pumping integrated well pipe has the advantages of convenience in maintenance and overhaul, low cost, small construction amount, rapid paving and the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. A duplex vacuum negative pressure dewatering and pumping integrated well pipe is characterized by comprising a well pipe body, a well cover is arranged on the upper cover of the well pipe body, a switching valve is arranged on the well cover, a negative pressure pipe, a water pumping pipe and a pumping device are arranged in the well pipe body, a plurality of negative pressure ports communicated with the well pipe body are formed in the negative pressure pipe, the lower end of the negative pressure pipe is sealed, the upper end of the negative pressure pipe is connected with a vacuum negative pressure pump through the switching valve, the water pumping pipe is arranged in the negative pressure pipe, vacuumizing and pumping operation can be integrated, a power source of the duplex vacuum dewatering and pumping integrated well pipe is only the vacuum negative pressure pump, the lower end of the water pumping pipe is communicated with a pumping device arranged at the bottom of the well pipe body, the upper end of the water pumping pipe penetrates out from the switching valve, the switching valve comprises a valve body and a valve seat, the valve body is fixed on the well cover through the valve seat, a sealing switching cavity and a negative pressure inlet pipe are arranged in the valve body, the upper end of the negative pressure pipe is communicated with the sealing switching cavity through a pipeline sealing connecting piece, the sealing switching cavity is connected with the vacuum negative pressure pump through the negative pressure inlet pipe, the water pumping port is arranged on the sealing switching cavity, the upper end of the water pumping pipe penetrates out from the water pumping port, the pumping device comprises a negative pressure cover, a water pumping cover and a waterproof elastic film, the water pumping cover is arranged in the water pumping cavity and is horizontally arranged between the water pumping cavity and the water pumping cavity, and the water cavity is communicated with the water cavity.
2. The duplex vacuum negative pressure dewatering and pumping integrated well pipe according to claim 1, wherein a sealing rubber ring is arranged between the negative pressure pipe and the pipeline sealing connecting piece, and a regulating valve is arranged between the negative pressure inlet pipe and the vacuum negative pressure pump.
3. The composite vacuum negative pressure dewatering and pumping integrated well pipe according to claim 1, wherein the negative pressure cover and the pumping cover are bell-shaped.
4. The duplex vacuum negative pressure dewatering and pumping integrated well pipe according to claim 1, wherein a space is arranged between the bottom of the pumping hood and the bottom of the well pipe body, and the waterproof elastic film is arranged at a position higher than the bottom of the pumping hood.
5. The duplex vacuum dewatering and pumping integrated well pipe according to claim 1, wherein the negative pressure pipe and the pumping pipe are arranged in a spiral winding mode, and the spiral winding radius of the negative pressure pipe and the pumping pipe is adjustable.
6. The composite vacuum negative pressure dewatering and pumping integrated well pipe according to claim 1, wherein a space is provided between the outer wall of the negative pressure pipe and the inner wall of the well pipe body, and a space is provided between the bottom of the negative pressure pipe and the bottom of the well pipe body.
7. The duplex vacuum dewatering and pumping integrated well pipe according to claim 1, wherein no negative pressure ports are provided on the negative pressure pipe near the bottom of the well pipe body, and the number of negative pressure ports towards the side of the well pipe body is greater than the number of negative pressure ports on the side facing away from the well pipe body.
8. The composite vacuum negative pressure dewatering and pumping integrated well pipe according to claim 1, wherein the negative pressure pipe is fixed above the bottom of the well pipe body by a plurality of detachable support frames.
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| CN202210602328.5A CN114991191B (en) | 2022-05-30 | 2022-05-30 | Duplex vacuum negative pressure dewatering and pumping integrated well pipe |
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| CN202210602328.5A CN114991191B (en) | 2022-05-30 | 2022-05-30 | Duplex vacuum negative pressure dewatering and pumping integrated well pipe |
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| CN114991191B true CN114991191B (en) | 2023-06-09 |
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