CN215520810U

CN215520810U - Combined type reverse circulation submersible engineering drilling machine capable of lifting suction stroke twice

Info

Publication number: CN215520810U
Application number: CN202122084574.XU
Authority: CN
Inventors: 孙肖
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-14
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a combined reverse circulation submersible engineering drilling machine with two lifting suction strokes, and belongs to the technical field of underwater drilling equipment. The combined reverse circulation submersible engineering drilling machine with two lifting suction strokes comprises a gearbox, a first slurry pump, a second slurry pump, a slurry pump motor, a drill rod motor and a hydraulic motor, wherein the first slurry pump is connected above the gearbox; a hydraulic motor is connected below the drill rod and is in transmission connection with a second slurry pump through a connecting pipe; and a flow guide side pipe is arranged on the second slurry pump, and the upper end of the flow guide side pipe extends to the drill rod. The centrifugal slurry pump on the gearbox of the drilling machine is connected with the submerged centrifugal slurry pump which takes the hydraulic motor as power on the drill rod in series, and the upper centrifugal slurry pump and the lower centrifugal slurry pump have complementary functions, so that the suction stroke of the whole drilling machine is improved.

Description

Combined type reverse circulation submersible engineering drilling machine capable of lifting suction stroke twice

Technical Field

The utility model belongs to the technical field of underwater drilling equipment, and particularly relates to a combined type reverse circulation submersible engineering drilling machine with twice lifting suction strokes.

Background

The reverse circulation engineering driller mainly comprises a drilling system and a mud pumping system, and is divided into two main types according to the mud pumping mode, wherein one type is a drilling system and a mud pump and a water injection pump are separately arranged, and the other type is a drilling system and a mud pump and a vacuum pump are integrally arranged. In the former, after a drill rod is added when the drilling depth is increased, water is injected into a slurry pump through a water injection pump, and the slurry pump is enabled to normally operate after air in the pump is discharged; the latter utilizes the vacuum pump to suck the air in the slurry pump after increasing the drilling rod, makes the mud in the well automatically sucked into the slurry pump under the action of atmospheric pressure, then starts the slurry pump to normally operate. In the two structural forms, the arrangement position of the mud pump is above the mud liquid level in the well and exposed to the air, and the problem of emptying before operation exists. After a drill rod is added each time, the slurry pump needs to be emptied, so that frequent emptying affects the drilling progress, further affects the drilling operation efficiency, and greatly increases the workload of workers; in addition, the mud pump is exposed to air, so that the requirement on the mechanical sealing performance of the pump is high, and the severe working environment of the mud pump often affects the service life of the mechanical seal and causes the problem of sealing failure, so that the mud pump is difficult to operate normally and reliably; in addition, the suction height of the mud pump is undoubtedly raised when the mud pump is above the mud liquid level, the specific gravity of the mud is large, and the problem of difficult mud suction often occurs when the mud pump drills to a certain depth.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem by providing the combined type reverse circulation submersible engineering drilling machine with twice lifting suction strokes.

In order to achieve the purpose, the technical solution of the utility model is as follows:

a combined reverse circulation submersible engineering drilling machine capable of lifting suction strokes twice comprises a gearbox, a first slurry pump, a second slurry pump, a slurry pump motor, a drill rod motor and a hydraulic motor, wherein the first slurry pump is connected above the gearbox; a hydraulic motor is connected below the drill rod and is in transmission connection with a second slurry pump through a connecting pipe; and a flow guide side pipe is arranged on the second slurry pump, and the upper end of the flow guide side pipe extends to the drill rod.

Preferably, the drill rod motor is connected with an input shaft of the gearbox, and the drill rod is connected with an output shaft of the gearbox through a hydraulic rotary joint.

Preferably, the drill rod, the gearbox output shaft and the diversion side pipe are all hollow structures.

Preferably, the diversion side pipe is arranged at an outlet at one side or two sides of the second slurry pump.

Preferably, the hydraulic rotary joint is fixedly connected between the drill rod and the output shaft of the gearbox through bolts, and inner holes of 3 parts are communicated in a sealing mode.

Preferably, the hydraulic rotary joint comprises a shell and a rotating body, the upper end surface and the lower end surface of the rotating body are respectively provided with a spigot, the spigot is connected with an output shaft of the gearbox and the drill rod through a bolt, and the shell is fixedly connected with the gearbox; the excircle of the rotating body is provided with an annular liquid channel for passing through a hydraulic medium and an annular groove for placing a sealing rubber ring and a wear-resistant sealing gasket; the bottom of the annular liquid channel is provided with a through hole which is communicated with the lower end surface of the rotating body; the shell is arranged outside the rotating body and is in clearance fit with the rotating body, and is pressed on the lower end edge of the rotating body to be in friction rotation fit with the rotating body.

Preferably, the hydraulic rotary joint comprises a shell, a rotating body and upper and lower bearings, the upper and lower bearings are arranged between the shell and the rotating body, the upper and lower end surfaces of the rotating body are respectively provided with a spigot, the spigot is connected with an output shaft of the gearbox and the drill rod through a bolt, and the shell is fixedly connected with the gearbox; the excircle of the rotating body is provided with an annular liquid channel for passing through a hydraulic medium and an annular groove for placing a sealing rubber ring; the bottom of the annular liquid channel is provided with a through hole which is communicated with the lower end surface of the rotating body; the shell is arranged outside the rotating body and is in clearance fit with the rotating body, and is pressed on the lower end edge of the rotating body through a bearing and is in rotating fit with the rotating body through the bearing.

Preferably, the annular liquid passage of the hydraulic medium is provided with a threaded joint hole, and the housing and the annular liquid passage of the hydraulic medium are connected through threads.

Preferably, the system further comprises a drilling tower, wherein a beam, a steel wire rope and a pulley are arranged on the drilling tower, and two ends of the beam of the drilling tower are connected with H steel to form a portal drilling tower; the H steel is connected with the gearbox 1 in a sliding mode, and the steel wire rope is wound through a pulley at the top end of the beam of the drilling tower and connected with a pulley on a hanging rail at the top of the mud pump motor.

The utility model has the beneficial effects that:

the centrifugal slurry pump on the gearbox of the drilling machine is connected with the submerged centrifugal slurry pump which takes the hydraulic motor as power on the drill rod in series, and the upper centrifugal slurry pump and the lower centrifugal slurry pump have complementary functions, so that the suction stroke of the whole drilling machine is greatly improved, and the drilling depth of the drilling machine is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the hydraulic rotary joint.

Fig. 4 is a schematic structural view of the hydraulic rotary joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, the combined reverse circulation submersible engineering drilling machine with two lifting suction strokes comprises a gearbox 1, a first slurry pump 2, a second slurry pump 3, a slurry pump motor 4, a drill pipe 5, a drill pipe motor 6 and a hydraulic motor 7, wherein the first slurry pump 2 is a centrifugal slurry pump, the second slurry pump 3 is a submerged centrifugal slurry pump, and the drill pipe 5 is a hollow drill pipe.

The first slurry pump 2 is arranged above the gearbox 1, the drill rod 5 is connected to the lower portion of an output shaft of the gearbox 1 through a hydraulic rotary joint 8, the first slurry pump 2 is connected with a slurry pump motor 4, the slurry pump motor 4 is arranged above the first slurry pump 2, and the drill rod motor 6 is arranged above the gearbox 1; the drill rod motor 6 is connected with an input shaft of the gearbox 1, the drill rod 5 is connected with an output shaft of the gearbox 1 through a hydraulic rotary joint 8, and the output shaft is a hollow shaft. The first slurry pump 2 on the gearbox 1 is fixedly connected and hermetically communicated with a hollow output shaft on the gearbox. A hydraulic motor 7 is connected below the drill rod 5, the hydraulic motor 7 is in transmission connection with the second slurry pump 3 through a connecting pipe 9, and the connecting pipe 9 is fixedly connected with the hydraulic motor 7 and the second slurry pump 3 through bolts; the second mud pump 3 is positioned at the transmission connection part of the drill rod 5, and an inlet at the center of the second mud pump 3 is communicated with the drill rod; the second mud pump 3 is provided with a flow guide side pipe 10, the upper end of the flow guide side pipe 10 extends to the drill rod 5, and the flow guide side pipe 10 is arranged at an outlet at one side or two sides of the second mud pump 3. The drill rod, the gearbox output shaft and the flow guide side pipe are all hollow structures.

The hydraulic motor 7 is located under the drill rod 5 and is hydraulically fed by a hydraulic swivel 8 at the upper end of the drill rod 5. The hydraulic rotary joint 8 is fixedly connected between the drill rod 5 and the output shaft of the gearbox 1 by bolts, and inner holes of 3 parts are communicated in a sealing way. The inner parts of the output shaft (the output shaft is a hollow shaft) of the gearbox, the hydraulic rotary joint and the drill rod are communicated in a sealed way, and flowing liquid can pass through the hydraulic rotary joint.

A centrifugal slurry pump on a gearbox (a first slurry pump) in the drilling machine and a submerged centrifugal slurry pump (a second slurry pump) taking a hydraulic motor as power are connected in series on a drill rod 5, and the action of the upper centrifugal slurry pump and the action of the lower centrifugal slurry pump are complementary, so that the suction stroke of the whole drilling machine is greatly improved, and the drilling depth of the drilling machine is improved.

Referring to fig. 3, the hydraulic rotary joint 8 is located between the upper end of the hollow drill rod and the lower end of the output shaft of the gearbox, and is a hydraulic motor power hydraulic oil conveying device. Preferably, the hydraulic rotary joint 8 comprises a housing 81 and a rotating body 82, the housing 81 and the rotating body 82 are both in a circular ring structure, the upper end surface and the lower end surface of the rotating body 82 are respectively provided with a spigot 821, the spigot is connected with the output shaft of the gearbox 1 and the drill rod 5 through bolts, the upper end surface and the lower end surface of the rotating body 82 are provided with bolt holes 822 for fixed connection, and the housing 81 is fixedly connected with the gearbox 1; the drill rod motor 6 on the gearbox 1 drives the output shaft, the rotating body and the drill rod on the gearbox 1 to rotate, and the rotating body 82 rotates synchronously with the output shaft of the gearbox 1 and the drill rod 5. The housing 81 is fixed with the gearbox 1 so that the housing 81 is not rotatable, thereby enabling the transmission of hydraulic power.

The excircle of the rotating body 82 is provided with a plurality of annular liquid channels 823 for passing hydraulic medium and annular grooves for placing sealing rubber rings 824 and wear-resistant sealing gaskets 825; in the embodiment, 3 annular liquid channels are arranged, and 4 annular grooves are arranged; the bottom of the annular liquid channel 823 is provided with a through hole 826, the through hole 826 is communicated with the lower end face of the rotating body 82, and the through hole 826 is a liquid channel opening on the rotating body; the sealing rubber ring 824 and the wear-resistant sealing gasket 825 are used for sealing the hydraulic medium between the annular liquid channels; and the wear-resistant sealing gasket also has the directional function. The housing 81 is disposed outside the rotary body and is in clearance fit with the rotary body, and is pressed against the lower end edge of the rotary body to be in frictional and rotational fit with the rotary body. A fluid passage port 827 is provided in the housing. The annular liquid channel is provided with a threaded joint hole, and a liquid channel port on the shell is connected with the first liquid medium pipeline 828 through threads. The first liquid medium pipeline is connected with a hydraulic pump station on the ground, the liquid medium is output to the shell through the hydraulic pump station on the ground, and then is conveyed to the hydraulic motor 7 through the second hydraulic medium pipeline 829 to be converted into rotary kinetic energy, and then returns to the hydraulic pump station on the ground through a loop channel formed by the annular liquid channel, and then energy is obtained.

Referring to fig. 4, in another preferred embodiment, the hydraulic rotary joint 8 includes a housing 81, a rotating body 82, an upper bearing 83 and a lower bearing 84, the upper bearing 83 and the lower bearing 84 are disposed between the housing 81 and the rotating body 82, and the upper bearing 83 and the lower bearing 84 perform orientation; the upper bearing 83 and the lower bearing 84 are tightly matched with the shell and the rotating body; the shell is in clearance fit with the rotating body. The upper end face and the lower end face of the rotating body are respectively provided with a spigot 821, the spigot 821 is connected with an output shaft of the gearbox and the drill rod through bolts, and the shell is fixedly connected with the gearbox; an annular liquid channel 823 for passing a hydraulic medium and an annular groove for placing a sealing rubber ring 824 are formed in the outer circle of the rotating body; the bottom of the annular liquid channel 823 is provided with a through hole 826 which is communicated with the lower end face of the rotating body, and a second hydraulic medium pipeline 829 is connected below the through hole; the shell is arranged outside the rotating body and is in clearance fit with the rotating body, and is pressed on the lower end edge of the rotating body through a bearing and is in rotating fit with the rotating body through the bearing. A fluid passage port 827 is provided in the housing.

Furthermore, the drilling machine also comprises a drilling tower, wherein a beam 11, a steel wire rope 12 and pulleys are arranged on the drilling tower, and two ends of the beam 11 of the drilling tower are connected with H steel to form a portal drilling tower. The two ends of H steel are connected with the gear box 1 in a sliding mode. The steel wire rope 12 is wound by a pulley 13 at the top end of a beam of the drilling tower and is connected with a pulley 15 on a hanging rail 14 at the top of a mud pump motor.

According to the mud pump, the second mud pump is arranged on the lower end face of the drill rod, the drill rod and the output shaft of the gearbox are hollow shafts, the second mud pump always submerges under the mud liquid level in the well along with the hollow drill rod, and air can be blocked by using mud, so that repeated and troublesome emptying treatment is avoided when the drill rod is increased, the time consumed for increasing the drill rod is greatly shortened, the working load is reduced, the working efficiency is improved, the mechanical sealing performance requirement of the second mud pump is greatly reduced, the service life and the drilling depth of the mud pump are prolonged, and the working reliability of the mud pump is improved; in addition, the split arrangement mode of the second slurry pump relative to the drilling machine is changed into an integrated arrangement mode which is closely and scientifically combined with the drilling machine, a water injection pump is omitted, the structure is simplified, the structure is more compact, the moving and the placement of the second slurry pump in the drilling use are more convenient, and the second slurry pump is suitable for being used as a drilling engineering facility.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The combined reverse circulation submersible engineering drilling machine capable of lifting suction strokes twice is characterized by comprising a gearbox, a first slurry pump, a second slurry pump, a slurry pump motor, a drill rod motor and a hydraulic motor, wherein the first slurry pump is connected above the gearbox; a hydraulic motor is connected below the drill rod and is in transmission connection with a second slurry pump through a connecting pipe; and a flow guide side pipe is arranged on the second slurry pump, and the upper end of the flow guide side pipe extends to the drill rod.

2. The double lift suction combined reverse cycle submersible power drill of claim 1, wherein the drill rod motor is connected to the gearbox input shaft and the drill rod is connected to the gearbox output shaft via a hydraulic swivel.

3. The double lift suction combined reverse cycle submersible power drill according to claim 2, wherein the drill pipe, the transmission output shaft, and the diversion lateral conduit are all hollow.

4. The double lift suction combined reverse cycle submersible power drill of claim 1, wherein the fluid side conduit is disposed at the outlet of one or both sides of the second mud pump.

5. The double lift suction combined reverse cycle submersible power drill according to claim 1, wherein the hydraulic swivel is bolted between the drill pipe and the output shaft of the gearbox and the 3 component bores are in sealed communication.

6. The double lift suction combined reverse cycle submersible engineering drilling rig according to claim 5, wherein the hydraulic swivel comprises a housing and a swivel, the swivel having spigots on upper and lower end faces thereof, the spigots being bolted to the output shaft of the gearbox and the drill pipe, the housing being fixedly connected to the gearbox; the excircle of the rotating body is provided with an annular liquid channel for passing through a hydraulic medium and an annular groove for placing a sealing rubber ring and a wear-resistant sealing gasket; the bottom of the annular liquid channel is provided with a through hole which is communicated with the lower end surface of the rotating body; the shell is arranged outside the rotating body and is in clearance fit with the rotating body, and is pressed on the lower end edge of the rotating body to be in friction rotation fit with the rotating body.

7. The double lift suction combined reverse cycle submersible engineering drilling rig according to claim 5, wherein the hydraulic swivel comprises a housing, a swivel, and upper and lower bearings, the upper and lower bearings being disposed between the housing and the swivel, the upper and lower end faces of the swivel each having a spigot, the spigot being bolted to the output shaft of the gearbox and the drill pipe, the housing being fixedly connected to the gearbox; the excircle of the rotating body is provided with an annular liquid channel for passing through a hydraulic medium and an annular groove for placing a sealing rubber ring; the bottom of the annular liquid channel is provided with a through hole which is communicated with the lower end surface of the rotating body; the shell is arranged outside the rotating body and is in clearance fit with the rotating body, and is pressed on the lower end edge of the rotating body through a bearing and is in rotating fit with the rotating body through the bearing.

8. The double lift suction combined reverse cycle submersible engineering rig according to claim 6 or 7 wherein the annular fluid passage for the hydraulic medium is threaded with a threaded joint hole and the housing is threaded with the annular fluid passage for the hydraulic medium.

9. The double lift suction combined reverse cycle submersible engineering rig according to any one of claims 1 to 7, further comprising a drilling tower, wherein the drilling tower is provided with a beam, a steel wire rope and pulleys, and two ends of the beam on the drilling tower are welded with H steel to form a portal drilling tower; the H steel is connected with the gearbox 1 in a sliding mode, and the steel wire rope is wound through a pulley at the top end of the beam of the drilling tower and connected with a pulley on a hanging rail at the top of the mud pump motor.