CN109371998B - Adjustable precipitation tube well vacuum sealing device and precipitation system with same - Google Patents
Adjustable precipitation tube well vacuum sealing device and precipitation system with same Download PDFInfo
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- CN109371998B CN109371998B CN201811332623.3A CN201811332623A CN109371998B CN 109371998 B CN109371998 B CN 109371998B CN 201811332623 A CN201811332623 A CN 201811332623A CN 109371998 B CN109371998 B CN 109371998B
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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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- 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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Abstract
The application discloses adjustable precipitation tube well vacuum seal device and precipitation system of configuration device, wherein the vacuum seal device includes: an outer tube; the two sealing plates are respectively fixed at two ends of the outer tube and seal the tube openings at the two ends of the outer tube; the sleeve is arranged in the outer pipe, two ends of the sleeve respectively penetrate out of the sealing plate in a sealing manner, and a circle of inner skirt edge protruding inwards in the radial direction is integrally formed on the hole wall of the sleeve mounting through hole; the air pipe is arranged in the outer pipe, and two ends of the air pipe respectively penetrate out of the sealing plate in a sealing manner; the two outer sealing rings are made of rubber materials and are respectively sleeved at two end parts of the outer pipe; and the two inner sealing rings are respectively sleeved at the pipe orifices at the two ends of the sleeve. This application can guarantee the negative pressure stability in the precipitation pipe well when the precipitation operation.
Description
Technical Field
The application relates to a foundation ditch precipitation construction equipment field, concretely relates to adjustable precipitation pipe well vacuum sealing device and configuration device's precipitation system.
Background
During the foundation ditch precipitation construction, can exert the vacuum in the tube well in order to improve the efficiency of precipitation tube well, make groundwater concentrate to the well fast in, but can cause the tube well ventilative along with the reduction of ground water level or the earthwork excavation in-process, sealing performance can't guarantee in the well, makes the sealed precipitation tube well of conventional well head lose vacuum efficiency, can't exert the efficiency of vacuum precipitation tube well.
Disclosure of Invention
The purpose of the application is: to above-mentioned problem, this application provides an adjustable precipitation pipe well vacuum seal device and configuration device's precipitation system to guarantee the negative pressure stability in the precipitation pipe well when precipitation operation.
The technical scheme of the application is as follows:
an adjustable downcomer well vacuum seal, comprising:
an outer tube;
the two sealing plates are respectively fixed at two ends of the outer tube and seal the tube openings at the two ends of the outer tube;
the sleeve is arranged in the outer pipe, two ends of the sleeve respectively penetrate out of the sealing plate in a sealing manner, and a circle of first inner skirt edge protruding inwards in the radial direction is integrally formed on the hole wall of the sleeve mounting through hole; and
the air pipe is arranged in the outer pipe, and two ends of the air pipe respectively penetrate out of the sealing plate in a sealing manner;
the two outer sealing rings are made of rubber materials and are respectively sleeved at two end parts of the outer pipe; and
and the two inner sealing rings are respectively sleeved at the pipe orifices at the two ends of the sleeve.
The outer sealing ring comprises a circle of outer skirt edge which is integrally arranged at the outer edge of the outer sealing ring and protrudes outwards in the radial direction, and the inner sealing ring comprises a circle of second inner skirt edge which is integrally arranged at the inner periphery of the inner sealing ring and protrudes inwards in the radial direction.
The vacuum tube is characterized by further comprising a three-way tube, one tube head of the three-way tube is connected with one end of the air tube, the other tube head is provided with a first valve and communicated with the atmosphere, and the other tube head is provided with a second valve and connected with vacuum pumping equipment.
The other end of the air pipe is a filtering pipe section with a filtering hole.
And a lifting ring is fixedly arranged on the outer side surface of the sealing plate.
The outer pipe is a round steel pipe, and the sealing plate is a round steel plate welded and fixed with the steel pipe.
The seal plate is a rubber sheet integrally connected between the outer seal ring and the inner seal ring.
A precipitation system, comprising:
a vertically arranged precipitation well pipe, and
the drainage pipe is positioned in the dewatering well pipe, and one part of the drainage pipe extends into the dewatering well pipe while the other part of the drainage pipe extends out of the dewatering well pipe;
the adjustable dewatering well vacuum sealing device further comprises an adjustable dewatering well vacuum sealing device with the structure, the outer pipe is inserted into the dewatering well pipe, the outer skirt edge is connected with the inner wall of the dewatering well pipe in an abutting mode, the lower end of the drainage pipe penetrates through the sleeve pipe and extends into the dewatering well pipe, and the second inner skirt edge is connected with the outer wall of the drainage pipe in an abutting mode.
On the basis of the technical scheme, the precipitation system further comprises the following preferable scheme:
the precipitation well pipe comprises a plurality of precipitation well pipe solid pipe sections and precipitation well pipe filtering pipe sections which are alternately arranged along the longitudinal direction, and the length of the outer pipe is larger than that of the precipitation well pipe filtering pipe sections.
The lower end of the drainage pipe is connected with a drainage pump positioned in the dewatering well pipe.
The application has the following beneficial effects:
1. the principle is simple and the operation is convenient.
2. The position of the vacuum sealing section can be adjusted as required.
3. The vacuum and drainage efficiency of each section of the downcomer well can be effectively ensured;
4. the installation is dismantled conveniently, can have enough to meet the need the use.
Drawings
The present application will be further described with reference to the following drawings and specific embodiments:
FIG. 1 is a schematic view of a precipitation system according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an adjustable downcomer well vacuum containment apparatus according to an embodiment of the present application;
FIG. 3 is an axial view of an adjustable downcomer well vacuum containment apparatus according to an embodiment of the present application;
wherein: 1-outer pipe, 2-outer sealing ring, 201-outer skirt, 3-sleeve, 4-air pipe, 401-filtering pipe section, 5-first valve, 6-second valve, 7-drainage pump, 8-hanging ring, 9-precipitation well pipe, 901-precipitation well pipe solid pipe section, 902-precipitation well pipe filtering pipe section, 10-drainage pipe, 11-sealing plate, 12-inner sealing ring, first inner skirt-202 and second inner skirt-1201.
Detailed Description
Fig. 1-3 illustrate one embodiment of the application of the adjustable downcomer well vacuum containment apparatus of the present application to a precipitation system. Like a conventional precipitation system, the precipitation system in this embodiment also comprises a precipitation well pipe 9 and a drain pipe 10. Wherein the precipitation well pipes 9 are arranged vertically, usually inserted below the ground surface where precipitation treatment is to be performed. One part of the drain pipe 10 extends into the precipitation well pipe 9 and is used for pumping the underground water entering the precipitation well pipe 9, and the other part of the drain pipe 10 extends out of the precipitation well pipe 9 so as to discharge the pumped underground water outwards. The precipitation well pipe 9 comprises a plurality of precipitation well pipe solid pipe sections 901 and precipitation well pipe filter pipe sections 902 which are alternately arranged with each other in the longitudinal direction.
The key improvement of the embodiment is that the precipitation system is also provided with a specially-made adjustable precipitation well vacuum sealing device. This adjustable downcast pipe well vacuum seal device includes: an outer tube 1, two shrouding 11, an outer sealing ring 2, an inner sealing ring 12, a sleeve pipe 3 and an trachea 4. Wherein:
the outer pipe 1 is a circular steel pipe, the outer diameter of the outer pipe 1 is slightly smaller than the inner diameter of the precipitation well pipe 9, and the length of the outer pipe 1 is larger than that of the precipitation well pipe filtering pipe section 902.
The two closing plates 11 are respectively fixed at the upper and lower ends of the outer tube 1 and seal and block the openings at the upper and lower ends of the outer tube 1. In this embodiment, the sealing plate 11 is a circular steel plate welded to the end of the outer tube.
The sleeve 3 is arranged in the outer tube 1, and the upper end and the lower end of the sleeve 3 respectively penetrate through the outer parts of the two close plates 11 in a sealing way, so that the joint of the sleeve 3 and the close plates 11 is sealed and air-tight.
The air tube 4 is also arranged in the outer tube 1, and the upper and lower ends of the air tube 4 are sealed and penetrate out of the two sealing plates 11 respectively.
The two outer sealing rings 2 are respectively sleeved at the upper end and the lower end of the outer tube 1.
The two inner sealing rings 12 are respectively sleeved at the pipe orifices at the upper end and the lower end of the sleeve 3.
The outer sealing ring 2 and the inner sealing ring 12 are made of rubber.
The two ends of the above-mentioned sleeve 3 and the air tube 4 are assembled in particular: all link up on two shrouding 11 and seted up sleeve pipe mounting hole and trachea mounting hole, sleeve pipe 3 penetrates the sleeve pipe mounting hole of two shrouding 11 to the outer wall of sleeve pipe 3 and the sealed welded fastening of pore wall in sleeve pipe mounting hole. The air pipe 4 penetrates through the air pipe mounting holes of the two sealing plates 11, and the outer wall of the air pipe 4 is welded and fixed with the hole wall of the pipe mounting hole in a sealing way.
In order to facilitate the installation of the above-described sleeve 3 and cylinder 4, both the sleeve 3 and the air tube 4 are arranged parallel to the axis of the outer tube 1 in this embodiment.
In practical application, the outer pipe 1 is inserted into the precipitation well pipe 9, and the outer sealing ring 2 is sleeved outside the outer pipe 1, and the radial size of the outer sealing ring 2 in a free state is larger than the inner diameter of the precipitation well pipe 9, so that the outer sealing ring 2 is subjected to inward extrusion of the precipitation well pipe 9 to generate plastic deformation, the outer sealing ring 2 is abutted against the inner wall of the precipitation well pipe 9 to be connected, and the outer pipe 1 and the precipitation well pipe 9 are in sealing connection at the port of the outer pipe 1. The lower end of the drainage pipe 10 passes through the casing 3 downwards and then extends into the interior of the precipitation well pipe 9, and the inner sealing ring 12 sleeved at the pipe orifice of the casing 3 is tightly wrapped on the periphery of the drainage pipe 10, so that the casing 3 and the drainage pipe 10 are connected at the pipe orifice of the casing 3 in a sealing manner.
Further, the outer sealing ring 2 includes a ring of outer skirt 201 integrally disposed at an outer peripheral edge thereof and protruding radially outward, and the inner sealing ring 12 includes a ring of second inner skirt 1201 integrally disposed at an inner peripheral edge thereof and protruding radially inward, so as to improve the sealing performance of the outer sealing ring 2 and the inner sealing ring 12.
The upper end of the air pipe 4 is connected with a three-way pipe, specifically: one pipe head of the three-way pipe is connected with the upper end of an air pipe 4, the other pipe head is provided with a first valve 5 and is communicated with the atmosphere, and the other pipe head is provided with a second valve 6 and is connected with vacuum pumping equipment. The lower end of the drain pipe 10 is connected to a drain pump 7 located in the precipitation well pipe 9.
During construction, the two outer sealing rings 2 at the end part of the outer pipe are respectively abutted against the solid pipe section 901 parts of two different precipitation well pipes. And opening the second valve 6, closing the first valve 5, starting a vacuumizing device to suck air in the precipitation well pipe 9 through the air pipe 4, so that a negative pressure environment is formed in the precipitation well pipe 9, and the outer skirt 201 of the outer sealing ring 2 and the inner lip 1201 of the inner sealing ring 12 are respectively and elastically pressed on the inner wall of the precipitation well and the outer wall of the drainage pipe under the action of negative pressure. This prevents external air from entering the interior of the downcast well pipe 9 through the upper end pipe orifice of the downcast well pipe 9 and the filter holes of the filter pipe section 902 and damaging the negative pressure environment inside the downcast well pipe 9. The drain pump 7 operates to drain the groundwater flowing into the precipitation well pipe 9 to the outside through the drain pipe 3.
If the vacuum sealing device needs to be taken out, the second valve 6 is closed, the first valve 5 is opened, the negative pressure in the precipitation well pipe 9 is relieved, the deformation force of the outer sealing ring 2 and the inner sealing ring 12 is weakened, and therefore the vacuum sealing device is convenient to adjust and take out.
In order to prevent foreign matters from entering the interior of the air tube 4, the lower end of the air tube 4 is a filtering tube section 401 with filtering holes.
In view of the above-mentioned respective functions of the first valve 5 and the second valve 6, we can refer to the first valve 5 as a pneumatic valve and the second valve 6 as a vacuum valve.
And, the lateral surface (that is the side far away from outer tube 1) of shrouding 11 fixedly sets up rings 8 to when using, tie rope on rings 8, according to the operating mode of water level reduction and earth excavation with the vacuum seal device adjust to the corresponding position of precipitation well pipe 9.
The sealing plate 11 may be a single circular rubber sheet, and the sealing plate 11, the inner seal ring 12, and the outer seal ring 2 may be integrally formed.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present application, and the present application is not limited thereto. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.
Claims (9)
1. The utility model provides an adjustable downcomer well vacuum seal device which characterized in that includes:
an outer tube (1);
the two sealing plates (11) are respectively fixed at two ends of the outer tube (1) and seal the tube openings at two ends of the outer tube (1);
the sleeve (3) is arranged in the outer pipe (1), two ends of the sleeve (3) respectively penetrate through the sealing plate (11) in a sealing manner, and a circle of first inner skirt edge (202) protruding inwards in the radial direction is integrally formed at the hole wall of the sleeve mounting hole corresponding to the sleeve (3); and
the air pipe (4) is arranged in the outer pipe (1), and two ends of the air pipe (4) respectively penetrate out of the sealing plate (11) in a sealing manner;
the outer sealing rings (2) are made of rubber materials, and the two outer sealing rings (2) are respectively sleeved at two end parts of the outer pipe (1); and
the two inner sealing rings (12) are made of rubber materials, and the two inner sealing rings (12) are respectively sleeved at pipe orifices at two ends of the sleeve (3);
two shrouding (11) set up from top to bottom along the extending direction of downcomer well (9), are located the top the up end of shrouding (11) is provided with rings (8), rings (8) are used for according to the operating mode of water level in downcomer well (9) and earthwork excavation will vacuum sealing device adjusts extremely the corresponding position of downcomer well (9), vacuum sealing device passes through outer seal ring (2) with the inner wall sealing connection of downcomer well (9).
2. The adjustable downcomer well vacuum seal according to claim 1, characterized in that the outer sealing ring (2) comprises a radially outwardly protruding ring of outer skirt (201) integrally provided at its outer peripheral edge, and the inner sealing ring (12) comprises a radially inwardly protruding ring of second inner skirt (1201) integrally provided at its inner peripheral edge.
3. The adjustable vacuum sealing device for the downcast pipe well as defined in claim 1, further comprising a three-way pipe, one pipe head of the three-way pipe is connected with one end of the gas pipe (4), the other pipe head is provided with a first valve (5) and is communicated with the atmosphere, and the other pipe head is provided with a second valve (6) and is connected with a vacuum pumping device.
4. The adjustable downcomer well vacuum seal according to claim 3, characterised in that the other end of the gas pipe (4) is a filter pipe section (401) with filter holes.
5. The adjustable downcomer well vacuum seal according to claim 1, characterized in that the outer tube (1) is a round steel tube and the sealing plate (11) is a round steel plate welded and fixed with the steel tube.
6. The adjustable downcomer well vacuum seal according to claim 1, characterized in that the sealing plate (11) is a rubber sheet integrally connected between the outer sealing ring (2) and the inner sealing ring (12).
7. A precipitation system, comprising:
a vertically arranged precipitation well pipe (9), and
a drain pipe (10) with one part extending into the precipitation well pipe (9) and the other part extending out of the precipitation well pipe (9);
-8-further comprising an adjustable downcomer well vacuum tight device according to claim 2, wherein the outer pipe (1) is inserted into the downcomer well pipe (9) and the outer skirt (201) is in abutting connection with the inner wall of the downcomer well pipe (9), the lower end of the drain pipe (10) is extending through the casing (3) into the downcomer well pipe (9), and the second inner skirt (1201) is in abutting connection with the outer wall of the drain pipe (10).
8. The precipitation system according to claim 7, wherein the precipitation well pipe (9) comprises a number of precipitation well pipe solid pipe sections (901) and precipitation well pipe filter pipe sections (902) arranged alternately in longitudinal direction, the length of the outer pipe (1) being larger than the length of the precipitation well pipe filter pipe sections (902).
9. A precipitation system according to claim 7, wherein the lower end of the drain pipe (10) is connected to a drain pump (7) located in the precipitation well pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332623.3A CN109371998B (en) | 2018-11-09 | 2018-11-09 | Adjustable precipitation tube well vacuum sealing device and precipitation system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332623.3A CN109371998B (en) | 2018-11-09 | 2018-11-09 | Adjustable precipitation tube well vacuum sealing device and precipitation system with same |
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| Publication Number | Publication Date |
|---|---|
| CN109371998A CN109371998A (en) | 2019-02-22 |
| CN109371998B true CN109371998B (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811332623.3A Active CN109371998B (en) | 2018-11-09 | 2018-11-09 | Adjustable precipitation tube well vacuum sealing device and precipitation system with same |
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| CN (1) | CN109371998B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397048A (en) * | 2019-07-10 | 2019-11-01 | 中国地质大学（武汉） | A kind of drainage arrangement and method of the series connection sump for landslide control |
| CN114134918B (en) * | 2021-11-10 | 2023-08-08 | 上海建工四建集团有限公司 | Use method of full-automatic control type vacuum deep well device |
| CN114233382B (en) * | 2021-11-29 | 2023-04-28 | 上海渊丰地下工程技术有限公司 | Negative pressure gas lift formula downcomer well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068485A (en) * | 2002-08-08 | 2004-03-04 | Sakamoto Shokai:Kk | Method of forcedly removing surface water in deep well construction method |
| CN201610552U (en) * | 2010-02-08 | 2010-10-20 | 上海广联建设发展有限公司 | Strong vacuum unwatering downcomer well |
| CN102278326A (en) * | 2010-06-13 | 2011-12-14 | 付建立 | Deep well compressed air water pump |
| CN202450537U (en) * | 2012-03-06 | 2012-09-26 | 新蒲建设集团有限公司 | Composite dewatering device of vacuum tube well |
| CN206438526U (en) * | 2017-01-12 | 2017-08-25 | 上海市水利工程集团有限公司 | Deep basal pit tube well dewatering equipment |
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