Noise reduction device of top driving device of petroleum drilling machine

Abstract

The invention belongs to the technical field of petroleum drilling machines, and particularly relates to a noise reduction device for a top driving device of a petroleum drilling machine, which comprises a conical outer barrel and a sealing cover plate fixedly connected to the top of the conical outer barrel, a conical sound gathering plate is fixedly connected to the bottom of the inner side of the conical outer barrel, and a circular opening is formed in the top of the sound gathering plate; a first partition plate and a second partition plate are fixedly connected to the positions, located above the sound gathering plate, of the inner side of the conical outer barrel, a noise pretreatment chamber is formed between the sound gathering plate and the first partition plate, a silencing chamber is formed between the first partition plate and the second partition plate, and a sound outlet chamber is formed between the second partition plate and the sealing cover plate. The first partition plate and the second partition plate are each provided with a plurality of through cavities. According to the drilling machine top driving device, the conical outer barrel is arranged, the multiple noise reduction structures are arranged in the conical outer barrel, effective noise reduction of the drilling machine top driving device can be achieved through the noise reduction structures, and the problem that the noise reduction effect of a device at the present stage is poor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling rigs, in particular to a noise reduction device for a top driving device of an oil drilling rig. Background Art

[0002] The top drive is one of the supporting equipment of the oil and gas drilling rig. It is installed inside the derrick. It replaces the transmission turntable to drive the drilling method, greatly improving the drilling efficiency. As an optional component of the top drive, the noise reduction device for the top drive can be roughly divided into: top drive connector, sound insulation cover body frame, sound insulation cover structure, air inlet silencer, and exhaust silencer.

[0003] The current top drive device noise reduction device is simply designed, and generally only uses a soundproof cover and soundproof cotton to reduce noise. The noise reduction effect is not good enough, and the sealing effect on the drive device is not good, causing noise leakage. There are certain defects and shortcomings, so it needs to be improved. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a noise reduction device for a top drive device of an oil drilling rig. By providing a conical outer cylinder and arranging multiple noise reduction structures in the conical outer cylinder, effective noise reduction of the top drive device of the drilling rig can be achieved, solving the problem of poor noise reduction effect of the current device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A noise reduction device for a top drive device of an oil rig comprises a conical outer cylinder and a sealing cover plate fixedly connected to the top of the conical outer cylinder, a conical sound collecting plate is fixedly connected to the inner bottom of the conical outer cylinder, and a circular opening is provided on the top of the sound collecting plate, a partition 1 and a partition 2 are fixedly connected to the inner side of the conical outer cylinder above the sound collecting plate, wherein a noise pretreatment chamber is formed between the sound collecting plate and the partition 1, a sound silencing chamber is formed between the partition 1 and the partition 2, and a sound outlet chamber is formed between the partition 2 and the sealing cover plate, a plurality of through cavities are provided on the partition 1 and the partition 2, and sound silencing pipes are fixedly connected to the through cavities corresponding to the partition 1 and the partition 2, and the sound silencing pipes are provided with evenly distributed through holes.

[0009] Furthermore, a conical protrusion is formed downwardly in the center of the partition, and the conical protrusion is arranged above the circular opening. The lower surface of the conical protrusion and the upper surface of the sound-gathering plate are fixedly connected with sound-absorbing cotton.

[0010] Furthermore, the inner side of the sound outlet chamber is provided with staggered conical silencer plates, and a plurality of conical silencer plates are provided, and the plurality of conical silencer plates are respectively fixedly connected to the conical outer cylinder, the second partition plate and the sealing cover plate.

[0011] Furthermore, an annular tube is fixedly connected between the center of the second partition plate and the sealing cover plate, and the annular tube is provided with evenly distributed cavities.

[0012] Furthermore, a sound outlet hole opened at the center of the sealing cover plate is connected to a sound outlet pipe, a fixing seat is arranged between the sound outlet pipe and the sealing cover plate, and the sound outlet hole is located above the annular pipe.

[0013] Furthermore, an annular mounting plate is fixedly connected to the bottom of the conical outer cylinder, a sealing ring is fixedly connected to the lower surface of the annular mounting plate, and a positioning seat is welded on the side wall of the annular mounting plate.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a noise reduction device for a top drive device of an oil drilling rig, which has the following beneficial effects:

[0016] 1. The present invention provides a conical outer cylinder, and the conical outer cylinder cover is provided on the top drive device. The noise generated by the top drive device passes through the circular opening, the noise pretreatment chamber, the silencing chamber, and the sound outlet chamber in sequence, and then is discharged through the sound outlet hole and the sound outlet pipe. The sound gathering plate is conical in design, which has a sound gathering effect, so that the noise enters the noise pretreatment chamber through the circular opening and the conical protrusion. This process can absorb and reduce noise. The conical protrusion and the sound gathering plate are both provided with silencing cotton, which can reduce noise. When the noise passes through the silencing chamber, a part of the noise will pass through the through holes on the silencing pipe, forming a noise absorption effect in the silencing chamber. When the noise circulates in the sound outlet chamber, it can be discharged through the conical silencing plates arranged in sequence, which can eliminate the noise to a large extent and reduce the impact of noise on the environment. Compared with traditional devices, the noise reduction effect is better.

[0017] 2. The present invention, by arranging an annular mounting plate at the bottom of the conical outer cylinder and arranging a sealing ring on the lower surface of the annular mounting plate, can make the conical outer cylinder fit well on the top drive device and reduce noise leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention.

[0020] In the figure: 1. conical outer cylinder; 2. noise pretreatment chamber; 3. partition 1; 4. silencing chamber; 5. partition 2; 6. sound outlet chamber; 7. conical silencing plate; 8. sealing cover plate; 9. sound outlet pipe; 10. fixing seat; 11. sound outlet hole; 12. annular pipe; 13. silencing pipe; 14. through hole; 15. conical protrusion; 16. circular opening; 17. sound gathering plate; 18. silencing cotton; 19. annular mounting plate; 20. sealing ring; 21. positioning seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example

[0023] like Figure 1 and Figure 2 As shown, a noise reduction device for a top drive device of an oil rig proposed in one embodiment of the present invention comprises a conical outer cylinder 1, and a sealing cover plate 8 fixedly connected to the top of the conical outer cylinder 1, a conical sound collecting plate 17 is fixedly connected to the inner bottom of the conical outer cylinder 1, and a circular opening 16 is opened on the top of the sound collecting plate 17, and a partition 1 3 and a partition 2 5 are fixedly connected to the inner side of the conical outer cylinder 1 above the sound collecting plate 17, wherein a noise pretreatment chamber 2 is formed between the sound collecting plate 17 and the partition 1 3, a sound silencing chamber 4 is formed between the partition 1 3 and the partition 2 5, and a sound outlet chamber 6 is formed between the partition 2 5 and the sealing cover plate 8, a plurality of through cavities are opened on the partition 1 3 and the partition 2 5, and a sound silencing pipe 13 is fixedly connected to the through cavities corresponding to the partition 1 3 and the partition 2 5, and the sound silencing pipe 13 is opened with evenly distributed through holes 14.

[0024] It should be noted that the conical outer cylinder 1 is of conical design. When in use, the cover is set on the top drive device to achieve a sound-absorbing effect. By arranging a sound-gathering plate 17 at the bottom of the conical outer cylinder 1, the sound-gathering plate 17 is of conical design and can gather the sound and absorb the noise very well. By arranging a circular opening 16 at the top of the sound-gathering plate 17, the noise can enter the noise pretreatment chamber 2 along the circular opening 16. When entering the noise pretreatment chamber 2, the first noise reduction treatment can be formed. By arranging a silencer pipe 13 at the silencer chamber 4 and arranging evenly distributed through holes 14 on the silencer pipe 13, a part of the noise can be dispersed to the silencer chamber 4, and a part of the noise is reverberated in the silencer chamber 4, thereby playing a noise reduction role. After that, the noise will enter the sound outlet chamber 6 for further processing. The present invention is provided with multiple noise reduction procedures, has good noise reduction effect, occupies little space, and is suitable for noise reduction use of the top drive device of the oil rig.

[0025] like Figure 1 As shown, in some embodiments, a conical protrusion 15 is formed downwardly at the center of the partition 3, and the conical protrusion 15 is arranged above the circular opening 16. The lower surface of the conical protrusion 15 and the upper surface of the sound-collecting plate 17 are fixedly connected with sound-absorbing cotton 18.

[0026] It should be noted that by arranging a conical protrusion 15 at the center of the partition 3, when noise enters through the circular opening 16, the conical protrusion 15 can be used to divert the sound, so that the noise is evenly diffused to the noise pretreatment chamber 2, and by fixing the sound-absorbing cotton 18 on the lower surface of the conical protrusion 15 and the upper surface of the sound-absorbing plate 17, the arrangement of the sound-absorbing cotton 18 can achieve a certain degree of noise reduction and increase the noise processing effect.

[0027] like Figure 1 As shown, in some embodiments, the inner side of the sound outlet chamber 6 is provided with staggered conical silencer plates 7, and a plurality of conical silencer plates 7 are provided, and the plurality of conical silencer plates 7 are respectively fixedly connected to the conical outer cylinder 1, the partition plate 2 5 and the sealing cover plate 8.

[0028] It should be noted that the noise in the silencer pipe 13 enters the sound outlet chamber 6, and after entering the sound outlet chamber 6, it will shuttle between multiple conical silencer plates 7. The conical silencer plates 7 can resist the noise and form an echo, thereby reducing the noise and increasing the noise reduction effect.

[0029] like Figure 1 As shown, in some embodiments, an annular tube 12 is fixedly connected between the center of the partition plate 5 and the sealing cover plate 8, and the annular tube 12 is provided with evenly distributed cavities.

[0030] It should be noted that, by providing the annular tube 12 between the partition plate 5 and the sealing cover plate 8, the sound after the noise reduction treatment enters the annular tube 12, so that the noise can be discharged again and then discharged.

[0031] like Figure 1 As shown, in some embodiments, the sound outlet hole 11 opened at the center of the sealing cover plate 8 is connected to the sound outlet pipe 9, a fixing seat 10 is arranged between the sound outlet pipe 9 and the sealing cover plate 8, and the sound outlet hole 11 is located above the annular tube 12.

[0032] It should be noted that a sound outlet pipe 9 is provided at the sound outlet hole 11 of the sealing cover plate 8, and sound is discharged through the sound outlet pipe 9. The sound outlet pipe 9 is an inverted U-shaped design. The advantage of this design is that it can realize sound reprocessing, and the pipe mouth is downward, which can reduce the impact.

[0033] like Figure 1 As shown, in some embodiments, an annular mounting plate 19 is fixedly connected to the bottom of the conical outer cylinder 1 , a sealing ring 20 is fixedly connected to the lower surface of the annular mounting plate 19 , and a positioning seat 21 is welded on the side wall of the annular mounting plate 19 .

[0034] It should be noted that by providing an annular mounting plate 19 at the periphery of the conical outer cylinder 1, the installation of the conical outer cylinder 1 on the driving device is facilitated. By fixing the sealing ring 20 on the lower surface of the annular mounting plate 19, the gap at the connection can be reduced, thereby avoiding noise leakage. By welding a positioning seat 21 on the side wall of the annular mounting plate 19, the installation and fixation of the conical outer cylinder 1 is achieved.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A noise reduction device for a top drive of an oil drilling rig, comprising a conical outer cylinder (1), and a sealing cover plate (8) fixedly connected to the top of the conical outer cylinder (1), characterized in that: A conical sound collecting plate (17) is fixedly connected to the bottom of the inner side of the conical outer cylinder (1), and a circular opening (16) is provided on the top of the sound collecting plate (17). A partition plate 1 (3) and a partition plate 2 (5) are fixedly connected to the inner side of the conical outer cylinder (1) above the sound collecting plate (17), wherein a noise pretreatment chamber (2) is formed between the sound collecting plate (17) and the partition plate 1 (3), a sound silencing chamber (4) is formed between the partition plate 1 (3) and the partition plate 2 (5), and a sound outlet chamber (6) is formed between the partition plate 2 (5) and the sealing cover plate (8). Multiple through cavities are provided on the partition plate 1 (3) and the partition plate 2 (5), and a sound silencing pipe (13) is fixedly connected to the corresponding through cavities of the partition plate 1 (3) and the partition plate 2 (5), and the sound silencing pipe (13) is provided with evenly distributed through holes (14).

2. The noise reduction device for a top drive of a petroleum drilling rig according to claim 1, characterized in that: The center of the partition (3) is recessed downward to form a conical protrusion (15), which is arranged above the circular opening (16). The lower surface of the conical protrusion (15) and the upper surface of the sound-collecting plate (17) are both fixedly connected with sound-absorbing cotton (18).

3. The noise reduction device for a top drive of a petroleum drilling rig according to claim 1, characterized in that: The inner side of the sound outlet chamber (6) is provided with staggered conical silencer plates (7), a plurality of conical silencer plates (7) are provided, and the plurality of conical silencer plates (7) are respectively fixedly connected to the conical outer cylinder (1), the second partition plate (5) and the sealing cover plate (8).

4. The noise reduction device for a top drive of a petroleum drilling rig according to claim 1, characterized in that: An annular tube (12) is fixedly connected between the center of the second partition plate (5) and the sealing cover plate (8), and the annular tube (12) is provided with evenly distributed cavities.

5. The noise reduction device for a top drive of a petroleum drilling rig according to claim 4, characterized in that: A sound outlet hole (11) opened at the center of the sealing cover plate (8) is connected to a sound outlet pipe (9), a fixing seat (10) is provided between the sound outlet pipe (9) and the sealing cover plate (8), and the sound outlet hole (11) is located above the annular pipe (12).

6. The noise reduction device for a top drive of a petroleum drilling rig according to claim 1, characterized in that: The bottom of the conical outer cylinder (1) is fixedly connected to an annular mounting plate (19), the lower surface of the annular mounting plate (19) is fixedly connected to a sealing ring (20), and a positioning seat (21) is welded on the side wall of the annular mounting plate (19).

Images