CN212359711U - Pipe diameter taper sealing water stop valve - Google Patents
Pipe diameter taper sealing water stop valve Download PDFInfo
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- CN212359711U CN212359711U CN202020357492.0U CN202020357492U CN212359711U CN 212359711 U CN212359711 U CN 212359711U CN 202020357492 U CN202020357492 U CN 202020357492U CN 212359711 U CN212359711 U CN 212359711U
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Abstract
The utility model discloses a pipe diameter taper sealing water stop valve, which comprises an outer pipe, an inner pipe and a drill rod, wherein a perforated pipe is arranged above the outer pipe, water through holes are uniformly arranged on the pipe wall of the perforated pipe, and meanwhile, the inner diameter of the outer pipe is set to be a structure with a wide middle part and narrow two end parts; the middle part of the inner pipe is of a penetrating structure, a plurality of groups of annular bulges are arranged on the outer wall where the inner pipe is located, a gap is reserved between every two groups of annular bulges, a rubber sealing ring is filled between the gaps of the annular bulges, the inner pipe is arranged in the outer pipe, the rubber sealing rings of the inner pipe are attached to the inner walls of the two end parts of the outer pipe, and a gap is reserved between the rubber sealing ring of the inner pipe and the inner wall of the middle part of the outer pipe; the front end of the drill rod extends out of the middle part of the inner pipe and downwards.
Description
Technical Field
The utility model belongs to the technical field of cover colliery prevention and cure water, concretely relates to sealed stagnant water valve of pipe diameter tapering.
Background
With the continuous development of the current science and technology, coal is used as an energy resource and plays an important role in economic development. During coal mining, the aim of drilling construction is to liberate 'five-content' pressed coal, and the dredging and dredging water-rich drilling construction needs to overcome two technical difficulties: firstly, the open-eye track is accurately controlled, the water drainage roadway is ensured to be close to, and underground facilities are conveniently searched and installed underground; and secondly, the lower section of the water filtering perforated pipe is constructed and fixed, so that the lower section well fixing quality is met, and the water inrush is prevented from being caused to influence the safety production of the coal mine. According to the design requirements, a D244.5mm petroleum casing pipe under 265m is well-cemented, a top leakage drilling is carried out to about 450m, a D177.8mm flower pipe under the five-contained section and a D177.8mm solid pipe under the five-contained section are cemented and water-stopping. After the water stopping reaches the requirement, the water containing five is blocked, and after the water control device is installed underground, the water containing five is drained. Because the five-component water is rich and large, the drilling construction is safe, the well cementation operation and the water stop plugging are difficult.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a sealed stagnant water valve of pipe diameter tapering has solved among the prior art coal mining, and it is great to be rich in water, and to well drilling construction safety, well cementation operation, the stagnant water shutoff has brought the difficulty.
The purpose of the utility model can be realized by the following technical scheme:
a pipe diameter taper sealing water stop valve comprises an outer pipe, an inner pipe and a drill rod, wherein a perforated pipe is arranged above the outer pipe, water through holes are uniformly formed in the pipe wall of the perforated pipe, and meanwhile, the inner diameter of the outer pipe is of a structure with a wide middle part and narrow two end parts;
the middle part of the inner pipe is of a penetrating structure, a plurality of groups of annular bulges are arranged on the outer wall where the inner pipe is located, a gap is reserved between every two groups of annular bulges, a rubber sealing ring is filled between the gaps of the annular bulges, the inner pipe is arranged in the outer pipe, the rubber sealing rings of the inner pipe are attached to the inner walls of the two end parts of the outer pipe, and a gap is reserved between the rubber sealing ring of the inner pipe and the inner wall of the middle part of the outer pipe;
the front end of the drill rod extends out of the middle part of the inner pipe and downwards.
Further, the drill rod is higher than the ground by more than 2 m.
Furthermore, the outer wall of the outer pipe is of a structure with two narrow end parts and a wide middle part, and the taper is 6.
Furthermore, the thickness of the pipe wall where the two end parts of the outer pipe are located is larger than that of the pipe wall where the middle part of the outer pipe is located.
Furthermore, the height of the annular bulges of the inner pipe is 3-5mm, and the gap between each group of annular bulges is 5-8 mm.
The utility model has the advantages that:
the device solves the technical problems of construction and drainage under the condition of carrying out drainage and pressure reduction during the exploitation of the coal bed interfered by the aquifer. The whole water drainage process is controllable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of an outer tube according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the inner tube according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a use state of the embodiment of the present invention;
fig. 4 is a schematic structural view of the connection state between the outer pipe and the inner pipe according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a sealed stagnant water valve of pipe diameter tapering, including outer tube 1, inner tube 2 and drilling rod 3, the top of outer tube 1 is provided with floral tube 11, and limbers 101 have evenly been seted up to the pipe wall of floral tube 11, and the internal diameter of outer tube 1 sets up to the structure that the middle part is wide, both ends are narrow simultaneously. The outer wall of the outer tube 1 has a structure with two narrow end parts and a wide middle part, and the taper is 1: 16. The drill rod 3 is convenient to move up and down in the drilling process, the clamping is avoided, and the drill rod 3 is higher than the ground by more than 2 m. Meanwhile, the thickness of the pipe wall of the two end parts of the outer pipe 1 is larger than that of the pipe wall of the middle part.
As shown in fig. 2, the middle portion of the inner tube 2 is a penetrating structure, and a plurality of groups of annular protrusions 201 are arranged on the outer wall where the inner tube 2 is located, a gap is reserved between every two groups of annular protrusions 201, the height of the annular protrusions 201 of the inner tube 2 is 3-5mm, and the gap between every two groups of annular protrusions 201 is 5-8 mm. And the rubber seal 202 is filled between the gaps of the annular bulges 201, the inner tube 2 is arranged in the outer tube 1, the rubber seal 202 of the inner tube 2 is attached to the inner walls of the two end parts of the outer tube 1, and a gap is reserved between the rubber seal 202 of the inner tube 2 and the inner wall of the middle part of the outer tube 1. The front end of the drill rod 3 extends out of the middle part of the inner pipe 2 downwards, and the drill rod 3 is tightly and tightly connected with the middle part of the inner pipe 2 in a sealing way.
As shown in figures 3 and 4, when the plugging device is used, the outer pipe 1 is put into the outer pipe 1 along with the perforated pipe 11 to a position 5m below a water-containing layer, then the inner pipe 2 is put into the outer pipe, the drill rod 3 is connected to the upper end of the inner pipe 2, the inner pipe 2 is directly sleeved in the middle of the outer pipe 1, meanwhile, due to the action of gravity, the rubber sealing ring 202 on the inner pipe 2 and the lower part of the outer pipe 1 form a sealing structure, then grouting and well cementation are started, and after grouting, the outer pipe 1 and the inner pipe 2 are mutually sealed and matched, so that the plugging effect on five.
After the slip casting is accomplished simultaneously, lift inner tube 2 for the outer wall of inner tube 2 and the bottom inner wall alternate segregation of outer tube 1, the water that is detained in inner tube 2 top is followed the clearance between 1 inner wall middle part of outer tube and the 2 outer walls of inner tube and is gone out to flow to the below, adopts the pump at drilling position directly to take the water of below out afterwards, and the aquifer is detained and is flowed out above inner tube 2 this moment, makes things convenient for constructor to go into the well and overhauls the operation.
The utility model provides a carry out the construction and the hydrophobic technological problem under the condition of hydrophobic decompression when the coal seam that receives the aquifer interference is mined. The whole water drainage process is controllable.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (5)
1. The pipe diameter taper sealing water stop valve comprises an outer pipe (1), an inner pipe (2) and a drill rod (3), and is characterized in that a perforated pipe (11) is arranged above the outer pipe (1), the wall of the perforated pipe (11) is uniformly provided with water through holes (101), and meanwhile, the inner diameter of the outer pipe (1) is of a structure with a wide middle part and narrow two end parts;
the middle part of the inner pipe (2) is of a penetrating structure, a plurality of groups of annular bulges (201) are arranged on the outer wall where the inner pipe (2) is located, a gap is reserved between every two groups of annular bulges (201), rubber sealing rings (202) are filled between the gaps of the annular bulges (201), the inner pipe (2) is arranged in the outer pipe (1), the rubber sealing rings (202) of the inner pipe (2) are attached to the inner walls of the two end parts of the outer pipe (1), and meanwhile, a gap is reserved between the rubber sealing rings (202) of the inner pipe (2) and the inner wall of the middle part of the outer pipe (1);
the front end of the drill rod (3) extends out of the middle part of the inner pipe (2) and downwards.
2. The pipe diameter taper sealing water stop valve according to claim 1, wherein the drill rod (3) is higher than the ground by more than 2 m.
3. The pipe diameter taper sealing water stop valve according to claim 1, wherein the outer wall of the outer pipe (1) is of a structure with two narrow end parts and a wide middle part, and the taper is 1: 16.
4. The pipe diameter taper sealing water stop valve according to claim 3, wherein the pipe wall thickness of the two end parts of the outer pipe (1) is larger than that of the middle part.
5. The pipe diameter taper sealing water stop valve according to claim 1, wherein the height of the annular protrusions (201) of the inner pipe (2) is 3-5mm, and the gap between each group of annular protrusions (201) is 5-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020357492.0U CN212359711U (en) | 2020-03-19 | 2020-03-19 | Pipe diameter taper sealing water stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020357492.0U CN212359711U (en) | 2020-03-19 | 2020-03-19 | Pipe diameter taper sealing water stop valve |
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| Publication Number | Publication Date |
|---|---|
| CN212359711U true CN212359711U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020357492.0U Active CN212359711U (en) | 2020-03-19 | 2020-03-19 | Pipe diameter taper sealing water stop valve |
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| CN (1) | CN212359711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364942A (en) * | 2020-03-19 | 2020-07-03 | 中勘资源勘探科技股份有限公司 | Pipe diameter taper sealing water stop valve |
| CN113027389A (en) * | 2021-04-01 | 2021-06-25 | 中勘资源勘探科技股份有限公司 | Double-ring air-pressure boosting type water lifting pipeline connecting structure and water lifting method thereof |
-
2020
- 2020-03-19 CN CN202020357492.0U patent/CN212359711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364942A (en) * | 2020-03-19 | 2020-07-03 | 中勘资源勘探科技股份有限公司 | Pipe diameter taper sealing water stop valve |
| CN113027389A (en) * | 2021-04-01 | 2021-06-25 | 中勘资源勘探科技股份有限公司 | Double-ring air-pressure boosting type water lifting pipeline connecting structure and water lifting method thereof |
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