CN212958559U

CN212958559U - Hole sealing device for high-pressure water inrush drilling

Info

Publication number: CN212958559U
Application number: CN202022054104.4U
Authority: CN
Inventors: 韩中阳; 姜晓飞; 李井俊; 梁晓; 陈昊; 宋文静; 王超
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-13
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a hole sealing device of high pressure gushing water drilling relates to drilling shutoff technical field, including the pressure release pipe, the middle part of pressure release pipe is provided with the drainage chamber, and the inner chamber in drainage chamber is provided with fixed pipe, and the both ends of fixed pipe run through the both ends face middle part of pressure release pipe respectively and extend to the both ends outside of pressure release pipe, and the intercommunication mouth has been seted up to the one end of the lateral wall of fixed pipe, and the intercommunication mouth communicates with the inner chamber of fixed pipe, and the pressure release mouth has been seted up to the one end of the lateral wall of pressure release pipe. The utility model discloses a be provided with fixed pipe in the inside of drainage chamber, the intercommunication mouth has been seted up to the lateral wall one end of fixed pipe, and pressure release mouth and outlet have been seted up respectively at the both ends of the lateral wall of pressure release pipe, inserts this device and makes pressure release mouth and drilling link to defecate the nature and can dredge the water under high pressure in the rock mass, to grouting in the fixed pipe, treat that this device is in the same place with the stable fixing of rock mass after the thick liquid solidifies, avoided water pressure with this device follow rock mass rush out and lead to the shutoff failure.

Description

Hole sealing device for high-pressure water inrush drilling

Technical Field

The utility model relates to a drilling shutoff technical field, in particular to hole sealing device of high pressure gushing water drilling.

Background

In the underground production of mines, water inrush problems of high-pressure water drilling are often encountered, such as poorly closed exploration holes, frozen holes, inspection holes and the like which are disclosed underground, and exploration holes, inspection holes and the like of which the hole outburst prevention measures for underground construction fail (including no outburst prevention devices). If the drilling holes are not plugged, on one hand, the underground working environment is influenced, and the mine drainage burden is increased; on the other hand, the method brings large water inflow in a short time, and threatens the safe production of mines.

At present, in the process of plugging a drilled hole, the fixing effect between the hole sealing device and a rock body is poor, the hole sealing device is easy to separate from the rock body after being subjected to large water pressure, and therefore hole sealing failure is caused, and the hole sealing device has large potential safety hazards. Therefore, it is necessary to invent a sealing device for high pressure water bursting drill holes to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hole sealing device of high pressure gushing water drilling to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hole sealing device for a high-pressure water inrush drilling hole comprises a pressure relief pipe, wherein a drainage cavity is arranged in the middle of the pressure relief pipe, a fixed pipe is arranged in an inner cavity of the drainage cavity, two ends of the fixed pipe respectively penetrate through the middle of two end faces of the pressure relief pipe and extend to the outer sides of the two ends of the pressure relief pipe, a communication port is formed in one end of the outer side wall of the fixed pipe and is communicated with the inner cavity of the fixed pipe, a pressure relief port is formed in one end of the outer side wall of the pressure relief pipe, a groove is formed in the outer side wall of the pressure relief pipe, an annular positioning plate is movably sleeved in the middle of the outer side of the pressure relief pipe, a plurality of positioning insertion holes distributed in an annular array are formed in one side face of the annular positioning plate, positioning anchor rods matched with the positioning insertion holes are connected in a penetrating mode in the inner cavities, the sliding block is fixedly connected with the inner wall of the annular positioning plate, and a water outlet is formed in the other end of the outer side wall of the pressure relief pipe.

Preferably, the communication ports are provided in plurality, and the plurality of communication ports are distributed on the outer side wall of the fixed pipe in an annular array.

Preferably, the grooves are arranged in a plurality, and the grooves are distributed on the outer side wall of the pressure relief pipe in an annular array.

Preferably, the other end of the outer side wall of the pressure relief pipe is fixedly connected with a drain pipe, and one end of the drain pipe is communicated with the water outlet.

Preferably, the middle part of the drain pipe is provided with a ball valve, and the other end of the drain pipe is communicated with a connecting hose.

Preferably, the other end of the fixed pipe is provided with a sealing plug, and the side wall of the sliding block is connected with a rubber pad in a bonding mode.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with fixed pipe in the inside of drainage chamber, the lateral wall one end of fixed pipe has seted up the intercommunication mouth, the both ends of the lateral wall of pressure release pipe have seted up pressure release mouth and outlet respectively, insert this device in the rock mass and make pressure release mouth and drilling link to each other the stool can dredge the high pressure water, slip casting in the fixed pipe, after the thick liquid solidifies this device and rock mass stable fixed together, it can carry out the shutoff to the drilling to close the ball valve this moment, and avoided water pressure to rush out this device from the rock mass and lead to the shutoff failure;

2. the utility model discloses an annular positioning plate has been cup jointed in the outside activity of pressure release pipe, be provided with a plurality of location stock on the annular positioning plate, the inner chamber of recess is provided with the sliding block, sliding block and annular positioning plate fixed connection, laminate annular positioning plate and rock mass, use the location stock to fix annular positioning plate, can prevent that the pressure release pipe from taking place to rotate and leading to pressure release mouth and drilling dislocation, treat the thick liquid solidification back in the recess, annular positioning plate just can improve the fixed effect between this device and rock mass.

Drawings

Fig. 1 is a schematic view of the overall structure section of the present invention.

Fig. 2 is the utility model discloses annular positioning plate structure side cut open schematic diagram.

Fig. 3 is the side-cut schematic view of the communicating port structure of the utility model.

In the figure: 1. a pressure relief pipe; 2. a drainage cavity; 3. a fixed tube; 4. a communication port; 5. a pressure relief port; 6. a groove; 7. an annular positioning plate; 8. positioning the jack; 9. positioning an anchor rod; 10. a slider; 11. a water outlet; 12. a drain pipe; 13. a ball valve; 14. a connecting hose; 15. and (6) sealing the plug.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a hole sealing device for high-pressure water inrush drilling, as shown in figures 1-3, which comprises a pressure relief pipe 1, wherein a drainage cavity 2 is arranged in the middle of the pressure relief pipe 1, a fixed pipe 3 is arranged in the inner cavity of the drainage cavity 2, two ends of the fixed pipe 3 respectively penetrate through the middle of two end faces of the pressure relief pipe 1 and extend to the outer sides of two ends of the pressure relief pipe 1, the fixed pipe 3 is fixedly connected with the pressure relief pipe 1, a communication port 4 is arranged at one end of the outer side wall of the fixed pipe 3, a plurality of communication ports 4 are arranged on the outer side wall of the fixed pipe 3, the communication ports 4 are communicated with the inner cavity of the fixed pipe 3, a pressure relief port 5 is arranged at one end of the outer side wall of the pressure relief pipe 1, the pressure relief port 5 is communicated with the high-pressure water inrush drilling, one end of the fixed pipe 3 is inserted into a rock mass on one side of the drilling hole, slurry in the inner cavity of the fixed, after slurry is solidified, one end of the fixing pipe 3 can be fixed with a rock mass, the fixing pipe 3 and the pressure relief pipe 1 are prevented from being drawn out of the rock mass, a water outlet 11 is formed in the other end of the outer side wall of the pressure relief pipe 1, a water discharge pipe 12 is fixedly connected to the other end of the outer side wall of the pressure relief pipe 1, one end of the water discharge pipe 12 is communicated with the water outlet 11, a ball valve 13 is arranged in the middle of the water discharge pipe 12, the other end of the water discharge pipe 12 is communicated with a connecting hose 14, water in a high-pressure water bursting drilling hole enters the water discharge cavity 2 through the pressure relief port 5 and is discharged from the water discharge cavity 2 through the water discharge port 11, the water is discharged through the connecting hose 14 at last, the pressure relief port 5, the water discharge cavity 2 and the water outlet 11 jointly act to achieve the pressure relief effect, a sealing plug 15.

As shown in fig. 1 and fig. 2, a plurality of grooves 6 are formed in the outer side wall of the pressure relief pipe 1, the plurality of grooves 6 are distributed on the outer side wall of the pressure relief pipe 1 in an annular array manner, the arrangement of the grooves 6 can increase the contact area between the outer side wall of the pressure relief pipe 1 and a rock mass, so as to increase the friction force between the outer side wall of the pressure relief pipe 1 and the rock mass, and part of slurry is discharged through a communication port 4 and then enters the inner cavity of the grooves 6 and solidifies, so that the connection between the pressure relief pipe 1 and the rock mass is more stable, an annular positioning plate 7 is movably sleeved in the middle of the outer side of the pressure relief pipe 1, a plurality of positioning insertion holes 8 distributed in an annular array manner are formed in one side surface of the annular positioning plate 7, positioning anchor rods 9 matched with the positioning insertion holes 8 are connected through the inner cavities of the positioning insertion holes 8, namely, the annular positioning plate 7 can be stably fixed on the surface of a rock body, the inner cavity of the groove 6 is provided with a sliding block 10 matched with the groove 6, the side wall of the sliding block 10 is connected with a rubber pad in an adhering way, the sliding block 10 is fixedly connected with the inner wall of the annular positioning plate 7, the groove 6 and the sliding block 10 are mutually limited, so that the annular positioning plate 7 can only slide in the axial direction outside the pressure relief pipe 1, but not rotate relatively, so that the annular positioning plate 7 is fixed behind the rock body, the pressure relief opening 5 and the high-pressure water bursting drill hole can be prevented from being dislocated due to the rotation of the pressure relief pipe 1, the annular positioning plate 7 can slide in the axial direction of the outer side of the pressure relief pipe 1, the pressure relief pipe 1 can be ensured to be inserted into the high-pressure water bursting drill holes with different depths, and after slurry in the groove 6 is solidified, the annular positioning plate 7 and the pressure relief pipe 1 can be relatively fixed, so that the pressure relief pipe 1 is prevented from being drawn out of the rock body.

The utility model discloses the theory of operation:

when the device is used, one end of the fixing pipe 3 and one end of the pressure relief pipe 1 are inserted into a rock body until the pressure relief opening 5 is communicated with the high-pressure water inrush drilling hole, then the annular positioning plate 7 is slid to enable one side face of the annular positioning plate 7 to be attached to the surface of the rock body, the positioning anchor rod 9 is inserted into the rock body to fix the annular positioning plate 7, and water of the high-pressure water inrush drilling hole is discharged through the pressure relief opening 5, the drainage cavity 2, the drainage opening 11, the drainage pipe 12 and the connecting hose 14;

then the sealing plug 15 is pulled out and the grouting pipe is communicated with the other end of the fixed pipe 3, grouting is carried out on the inner cavity of the fixed pipe 3, the grout flows out through the communication port 4 and fills the gap between the outer side wall of the fixed pipe 3 and the rock mass, meanwhile, a part of the grout flows into the inner cavity of the groove 6 until the inner cavity of the fixed pipe 3 is filled with the grout, then the grouting pipe is pulled out, the other end of the fixed pipe 3 is plugged through the sealing plug 15, after all the grout is solidified, the ball valve 13 is closed and the connecting hose 14 is pulled out, at this time, the water in the high-pressure water bursting drill hole can not be discharged, and after the grout is solidified, the pressure relief pipe 1 and the fixing pipe 3 are stably fixed in the rock mass, the annular positioning plate 7 and the positioning anchor rod 9 further increase the fixing effect of the device, thereby avoided water pressure too big and lead to this device and rock mass separation, consequently the shutoff effect is better, has reduced the potential safety hazard.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a hole sealing device of high pressure gushing water drilling, includes pressure release pipe (1), its characterized in that: the middle part of the pressure relief pipe (1) is provided with a drainage cavity (2), the inner cavity of the drainage cavity (2) is provided with a fixed pipe (3), two ends of the fixed pipe (3) respectively penetrate through the middle parts of two end faces of the pressure relief pipe (1) and extend to the outer sides of two ends of the pressure relief pipe (1), one end of the outer side wall of the fixed pipe (3) is provided with a communication port (4), the communication port (4) is communicated with the inner cavity of the fixed pipe (3), one end of the outer side wall of the pressure relief pipe (1) is provided with a pressure relief port (5), the outer side wall of the pressure relief pipe (1) is provided with a groove (6), the middle part of the outer side of the pressure relief pipe (1) is movably sleeved with an annular positioning plate (7), one side face of the annular positioning plate (7) is provided with a plurality of positioning jacks (8) distributed in an annular array, the inner cavity of the positioning jacks (8, the anchor rod (9) is movably inserted into the positioning insertion hole (8), a sliding block (10) matched with the groove (6) is arranged in the inner cavity of the groove (6), the sliding block (10) is fixedly connected with the inner wall of the annular positioning plate (7), and a water outlet (11) is formed in the other end of the outer side wall of the pressure relief pipe (1).

2. The device for sealing a high-pressure water-inrush borehole according to claim 1, wherein: the communicating openings (4) are arranged in a plurality, and the communicating openings (4) are distributed on the outer side wall of the fixed pipe (3) in an annular array mode.

3. The device for sealing a high-pressure water-inrush borehole according to claim 2, wherein: the groove (6) is provided with a plurality of grooves, and the grooves (6) are distributed on the outer side wall of the pressure relief pipe (1) in an annular array mode.

4. The device for sealing a high-pressure water-inrush borehole according to claim 3, wherein: the other end of the outer side wall of the pressure relief pipe (1) is fixedly connected with a drain pipe (12), and one end of the drain pipe (12) is communicated with a water outlet (11).

5. The device for sealing a high-pressure water-inrush borehole according to claim 4, wherein: the middle part of the drain pipe (12) is provided with a ball valve (13), and the other end of the drain pipe (12) is communicated with a connecting hose (14).

6. The device for sealing a high-pressure water-inrush borehole according to claim 5, wherein: the other end of the fixed pipe (3) is provided with a sealing plug (15), and the side wall of the sliding block (10) is connected with a rubber pad in a bonding mode.