CN216197934U - Horizontal directional drilling engineering geological investigation reverse hole-washing device - Google Patents
Horizontal directional drilling engineering geological investigation reverse hole-washing device Download PDFInfo
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- CN216197934U CN216197934U CN202122979038.6U CN202122979038U CN216197934U CN 216197934 U CN216197934 U CN 216197934U CN 202122979038 U CN202122979038 U CN 202122979038U CN 216197934 U CN216197934 U CN 216197934U
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Abstract
The utility model discloses a reverse hole washing device for geological investigation of horizontal directional drilling engineering, which comprises a nozzle body, two groups of backwashing nozzle rings and a locking ring, wherein one end of the nozzle body is provided with a drill rod joint groove, a nozzle inner cavity communicated with the drill rod joint groove is arranged in the nozzle body, the outer wall of the nozzle body is axially provided with two nozzle holes, each nozzle hole is communicated with the nozzle inner cavity, the outer wall of the nozzle body is positioned at two sides of the nozzle hole and is respectively provided with a limiting ring and an external thread, one end of each backwashing nozzle ring is in a round platform shape to form a backwashing inclined surface, the inner wall of each backwashing nozzle ring is provided with a liquid outlet groove along the annular direction, a plurality of liquid spraying channels are arranged between the liquid outlet grooves and the backwashing inclined surfaces, the inner wall of the locking ring is provided with internal threads, and the two backwashing nozzle bodies are sleeved on the nozzle body in the same direction and are respectively abutted against the two limiting rings through the two locking rings. The utility model can realize the full-section cleaning of the drill hole, provides favorable conditions for successfully acquiring the geological information of the drill hole in the subsequent hole test and ensures the successful geological investigation of the horizontal hole engineering.
Description
Technical Field
The utility model relates to the technical field of engineering geological exploration, in particular to a reverse hole washing device for horizontal directional drilling engineering geological exploration.
Background
The horizontal directional drilling technology is a new construction technology combining the directional drilling technology in the petroleum industry and the traditional pipeline construction method, has the advantages of high construction speed, high construction precision, low cost and the like, and is widely applied to the pipeline laying construction engineering of water supply, coal gas, electric power, telecommunication, natural gas, petroleum and the like. The current horizontal directional drilling technology is also applied to engineering geological exploration, and particularly has a good application prospect for the exploration of high-altitude and large-buried-depth tunnels.
However, the horizontal exploration holes directly obtained by the horizontal directional drilling technology contain a large amount of cuttings and partial rock masses in addition to being contaminated by mud. The environment can not meet the requirement of subsequent in-hole testing, and if rock debris is not cleaned, the test instrument is smoothly fed into the hole to cause obstruction, and the risk of damage of the test instrument is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reverse hole washing device for horizontal directional drilling engineering geological exploration aiming at the existing technical current situation, which can realize the full-section cleaning of a drilled hole, provide favorable conditions for successfully acquiring the geological information of the drilled hole by subsequent in-hole tests and ensure the successful horizontal hole engineering geological exploration.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the reverse hole-washing device for geological exploration of the horizontal directional drilling engineering comprises a spray head body, two groups of backwashing spray rings and a locking ring;
the spray head body is of a cylindrical structure, a drill rod joint groove is formed in one end of the spray head body and used for connecting the spray head body with a drill rod, a spray head inner cavity communicated with the drill rod joint groove is formed in the spray head body, two spray holes are formed in the outer wall of the spray head body in the axial direction, each spray hole is communicated with the spray head inner cavity, and a limiting ring and an external thread are respectively arranged on the outer wall of the spray head body and positioned on two sides of each spray hole;
the backwashing spray ring is of an annular structure, one end of the backwashing spray ring is in a round platform shape to form a backwashing inclined surface, the inner diameter of the backwashing spray ring is matched with the outer diameter of the spray head body, a liquid outlet groove is annularly arranged on the inner wall of the backwashing spray ring along the annular direction, and a plurality of liquid spraying channels are arranged between the liquid outlet groove and the backwashing inclined surface;
the inner wall of the locking ring is provided with an internal thread matched with the external thread arranged on the outer wall of the sprayer body;
the two backwashing spray rings are sleeved on the spray head body in the same direction and are respectively abutted against the two limiting rings through the two locking rings, liquid outlet grooves of the two backwashing spray rings are respectively communicated with the two spray holes, the distance between one end of each backwashing spray ring with a backwashing inclined surface and one end of the spray head body, which is provided with a drill rod joint groove, is smaller than the distance between the other end of each backwashing spray ring and one end of the spray head body, which is provided with a drill rod joint groove, and a sealing gasket is arranged between each backwashing spray ring and the limiting rings and the locking rings.
Furthermore, the limiting ring and the spray head body are of an integrated structure, and the position sequence of the limiting ring and the external thread arranged on two sides of one spray hole along the axial direction of the spray head body is opposite to the position sequence of the limiting ring and the external thread arranged on two sides of the other spray hole along the axial direction of the spray head body.
Furthermore, each liquid spraying channel is provided with a nozzle on an opening on the backwashing inclined plane, the nozzle is in a trapezoidal structure, and the width of one end of the nozzle, which is in contact with the backwashing inclined plane, is larger than the width of one end of the nozzle, which is far away from the backwashing inclined plane.
Furthermore, the outer wall of the locking ring is provided with anti-skid grains.
Furthermore, the inner cavity of the spray head is of a reducing structure with the diameter reduced from the drill rod joint groove to the inside.
Furthermore, the inclination angle of the backwashing inclined plane on the backwashing jet ring is 45 degrees.
The utility model has the beneficial effects that:
this reverse hole-cleaning device sends to the hole bottom through horizontal directional drilling machine earlier, carries the washing liquid by the drilling rod again to the shower nozzle body and forms high-pressure jet, and at last from the hole bottom to drill way marching to pass mud, detritus and partial rock mass toward drill way direction at the in-process of walking, until the drilling full section is by the sanitization, can realize the full section of drilling and wash, for follow-up downthehole test gathers drilling geological information smoothly and provide the advantage, ensure to successfully carry out horizontal hole engineering geological survey. Wherein, spout the ring along two sets of backwashes of axial design on the sprinkler body, a set of backwash in the front spouts the ring and carries out preliminary washing, spouts the ring to strengthen the washing at a set of backwash in the back, and dual washing will greatly improve the cleaning performance. In addition, spout the ring with the backwash and be connected for dismantling with the shower nozzle body design, on the one hand, only need replace the backwash of corresponding diameter to the drilling of different diameters and spout the ring, that is to say, the backwash of a plurality of different diameters that same shower nozzle body is supporting spouts the ring and can be applicable to various operating modes, and application scope is wider, and on the other hand, the device can the split wash, does benefit to the later stage and develops maintenance work.
Drawings
FIG. 1 is a schematic structural view of a reverse hole-washing device according to the present invention;
FIG. 2 is a schematic structural view of a spray head body according to the present invention;
FIG. 3 is a schematic structural view (section) of a backwash spray ring of the present invention;
FIG. 4 is a schematic diagram of the structure of a backwash spray ring of the present invention (no nozzle);
FIG. 5 is a schematic diagram of the structure of a backwash spray ring of the present invention (with nozzles).
Description of the labeling: 1. the spray head comprises a spray head body 1-1, a drill rod joint groove 1-2, a spray head inner cavity 1-3, spray holes 1-4, external threads 2, a backwashing spray ring 2-1, a liquid outlet groove 2-2, a liquid spray channel 3, a limiting ring 4, a locking ring 5 and a spray nozzle.
Detailed Description
The utility model will be further explained with reference to the drawings.
Referring to fig. 1-4, the reverse hole-washing device for horizontal directional drilling engineering geological exploration comprises a nozzle body 1, two groups of backwashing spray rings 2 and a locking ring 4, and the specific structure is as follows:
the spray head body 1 is of a cylindrical structure, a drill rod joint groove 1-1 is formed in one end of the spray head body 1, the drill rod joint groove 1-1 is used for connecting the spray head body 1 with a drill rod, a spray head inner cavity 1-2 communicated with the drill rod joint groove 1-1 is formed in the spray head body 1, two spray holes 1-3 are formed in the outer wall of the spray head body 1 along the axial direction, each spray hole 1-3 is communicated with the spray head inner cavity 1-2, and a limiting ring 3 and an external thread 1-4 are respectively arranged on the outer wall of the spray head body 1 and located on two sides of each spray hole 1-3. Preferably, the inner cavity 1-2 of the spray head is of a reducing structure with the diameter reduced inwards from the drill rod joint groove 1-1, so that the fluid pressure is increased;
the backwashing spray ring 2 is of an annular structure, one end of the backwashing spray ring 2 is in a round table shape to form a backwashing inclined plane, the inner diameter of the backwashing spray ring 2 is matched with the outer diameter of the spray head body 1, a liquid outlet groove 2-1 is annularly arranged on the inner wall of the backwashing spray ring 2, and a plurality of liquid spray channels 2-2 are arranged between the liquid outlet groove 2-1 and the backwashing inclined plane. Preferably, the inclination angle of the backwash slope on the backwash spray ring 2 is 45 °.
The locking ring 4 is of an annular structure, and the inner wall of the locking ring 4 is provided with internal threads (not shown in the figure) matched with the external threads 1-4 arranged on the outer wall of the sprayer body 1. Preferably, the outer wall of the locking ring 4 is provided with anti-slip lines, which is beneficial to rotating the locking ring 4;
the two backwashing spray rings 2 are sleeved on the spray head body 1 in the same direction and are respectively abutted against the two limiting rings 3 through the two locking rings 4, liquid outlet grooves 2-1 of the two backwashing spray rings 2 are respectively communicated with the two spray holes 1-3, the distance between one end of each backwashing spray ring 2 with a backwashing inclined surface and one end of the spray head body 1 provided with the drill rod joint groove 1-1 is smaller than that between the other end of the backwashing spray ring and one end of the spray head body 1 provided with the drill rod joint groove 1-1, and a sealing gasket (not shown in the figure) is arranged between each backwashing spray ring 2 and the limiting rings 3 as well as between the locking rings 4.
In the above technical scheme, the limiting ring 3 and the nozzle body 1 are of an integral structure, and the position sequence of the limiting ring 3 and the external thread 1-4 arranged on two sides of one nozzle hole 1-3 along the axial direction of the nozzle body 1 is opposite to the position sequence of the limiting ring 3 and the external thread 1-4 arranged on two sides of the other nozzle hole 1-3 along the axial direction of the nozzle body 1. According to the design, the two backwashing spray rings 2 are respectively assembled on the spray head body 1 from two ends of the spray head body 1, and no structural interference exists between the two backwashing spray rings.
Referring to fig. 5, as one embodiment, each liquid spraying channel 2-2 has a nozzle 5 at the opening on the back washing inclined plane, and the nozzle 5 has a trapezoidal structure and the width of the end contacting the back washing inclined plane is larger than the width of the end far away from the back washing inclined plane. Typically, the nozzle 5 is of an isosceles trapezoidal configuration. After the nozzle 5 with the trapezoidal structure is additionally arranged, the cleaning liquid output by the liquid spraying channel 2-2 forms fan-shaped liquid flow after passing through the nozzle 5, and then the annular spraying coverage range of the backwashing spraying ring 2 is increased.
According to the technical scheme, the application method of the horizontal directional drilling engineering geological prospecting reverse hole washing device comprises the following steps: the device is tightly connected with a drill rod of a horizontal directional drilling machine through a drill rod joint groove 1-1 arranged at one end of a spray head body 1, then the device is conveyed to the bottom of a hole through the horizontal directional drilling machine, cleaning liquid is conveyed to the spray head body 1 through the drill rod to form reverse high-pressure jet flow, the device is enabled to move from the bottom of the hole to an orifice and continuously rotate through the horizontal directional drilling machine, the device pushes mud, rock debris and partial rock blocks to the orifice in the walking process until the whole section of the drilled hole is cleaned, and cleaning is finished.
Wherein, spout ring 2 along two sets of backwashes of axial design on sprinkler body 1, spout ring 2 and carry out preliminary washing in a preceding a set of backwash, spout ring 2 and strengthen the washing in a back set of backwash, dual washing will greatly improve the cleaning performance. In addition, spout ring 2 with the backwash and be connected for dismantling with sprinkler body 1 design, on the one hand, only need replace the backwash that corresponds the diameter to the drilling of different diameters and spout ring 2, that is to say, the backwash that same sprinkler body 1 matched a plurality of different diameters spouts ring 2 can be applicable to various operating modes, and application scope is wider, and on the other hand, the device can the split wash, does benefit to the later stage and develops maintenance work.
In general, the method can realize the full-section cleaning of the drill hole, provide favorable conditions for successfully acquiring the geological information of the drill hole in the subsequent in-hole test and ensure the successful geological investigation of the horizontal hole engineering.
It should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, therefore, all equivalent changes in the principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Reverse hole-washing device of directional engineering geological survey that creeps into of level, its characterized in that: comprises a spray head body, two groups of backwashing spray rings and a locking ring;
the spray head body is of a cylindrical structure, a drill rod joint groove is formed in one end of the spray head body and used for connecting the spray head body with a drill rod, a spray head inner cavity communicated with the drill rod joint groove is formed in the spray head body, two spray holes are formed in the outer wall of the spray head body in the axial direction, each spray hole is communicated with the spray head inner cavity, and a limiting ring and an external thread are respectively arranged on the outer wall of the spray head body and positioned on two sides of each spray hole;
the backwashing spray ring is of an annular structure, one end of the backwashing spray ring is in a round platform shape to form a backwashing inclined surface, the inner diameter of the backwashing spray ring is matched with the outer diameter of the spray head body, a liquid outlet groove is annularly arranged on the inner wall of the backwashing spray ring along the annular direction, and a plurality of liquid spraying channels are arranged between the liquid outlet groove and the backwashing inclined surface;
the inner wall of the locking ring is provided with an internal thread matched with the external thread arranged on the outer wall of the sprayer body;
the two backwashing spray rings are sleeved on the spray head body in the same direction and are respectively abutted against the two limiting rings through the two locking rings, liquid outlet grooves of the two backwashing spray rings are respectively communicated with the two spray holes, the distance between one end of each backwashing spray ring with a backwashing inclined surface and one end of the spray head body, which is provided with a drill rod joint groove, is smaller than the distance between the other end of each backwashing spray ring and one end of the spray head body, which is provided with a drill rod joint groove, and a sealing gasket is arranged between each backwashing spray ring and the limiting rings and the locking rings.
2. The reverse hole-washing device for geological exploration of horizontal directional drilling engineering according to claim 1, wherein: the limiting ring and the spray head body are of an integrated structure, and the position sequence of the limiting ring and the external thread arranged on two sides of one spray hole along the axial direction of the spray head body is opposite to the position sequence of the limiting ring and the external thread arranged on two sides of the other spray hole along the axial direction of the spray head body.
3. The reverse hole-washing device for geological exploration of horizontal directional drilling engineering according to claim 1, wherein: and the opening of each liquid spraying channel, which is positioned on the backwashing inclined plane, is provided with a nozzle, and the nozzle is of a trapezoidal structure, and the width of one end, which is in contact with the backwashing inclined plane, of the nozzle is larger than that of one end, which is far away from the backwashing inclined plane, of the nozzle.
4. The reverse hole-washing device for geological exploration of horizontal directional drilling engineering according to claim 1, wherein: and anti-skid grains are arranged on the outer wall of the locking ring.
5. The reverse hole-washing device for geological exploration of horizontal directional drilling engineering according to claim 1, wherein: the inner cavity of the spray head is of a reducing structure with the diameter reduced from the drill rod joint groove to the inside.
6. The reverse hole-washing device for geological exploration of horizontal directional drilling engineering according to claim 1, wherein: the inclination angle of the backwashing inclined plane on the backwashing jet ring is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122979038.6U CN216197934U (en) | 2021-11-26 | 2021-11-26 | Horizontal directional drilling engineering geological investigation reverse hole-washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122979038.6U CN216197934U (en) | 2021-11-26 | 2021-11-26 | Horizontal directional drilling engineering geological investigation reverse hole-washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216197934U true CN216197934U (en) | 2022-04-05 |
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ID=80914268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122979038.6U Active CN216197934U (en) | 2021-11-26 | 2021-11-26 | Horizontal directional drilling engineering geological investigation reverse hole-washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216197934U (en) |
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2021
- 2021-11-26 CN CN202122979038.6U patent/CN216197934U/en active Active
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