CN218882182U

CN218882182U - High-pressure rotary water swivel

Info

Publication number: CN218882182U
Application number: CN202223338697.2U
Authority: CN
Inventors: 简福蓉; 欧云科; 刘海东; 王江涛; 杨廷彬; 魏虎; 闫宪良; 李长江
Original assignee: Chongqing Pingshan Electromechanical Equipment Co ltd
Current assignee: Chongqing Pingshan Electromechanical Equipment Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-18
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to a high-pressure rotary water braid, which comprises a fixed part, a fixed shell and a rotary part; a fixed flow passage is arranged in the fixed part, and a rotating flow passage is arranged in the rotating part; one end of the fixed component close to the rotating component is inserted into the rotating component, and the fixed flow passage is communicated with the rotating flow passage; the fixed shell is positioned outside the fixed component and the rotating component, and the inner wall of one end of the fixed shell is contacted with the outer wall of the fixed component, and the inner wall of the other end of the fixed shell is contacted with the outer wall of one end of the rotating component far away from the fixed flow channel; one end of the rotating part, which is contacted with the fixed part, is a large end, and the other end of the rotating part, which is contacted with the inner wall of the other end of the fixed shell, is a small end; a first bearing is arranged between the fixed component and the rotating component, and sealing elements are arranged between the fixed shell and the fixed component as well as between the fixed shell and the rotating component. The utility model discloses simple structure has improved the security and the life of device.

Description

High-pressure rotary water swivel

Technical Field

The utility model relates to a mining drilling equipment technical field, concretely relates to high-pressure rotation water swivel.

Background

The high-pressure rotary water swivel is connected between high-pressure cutting equipment and a high-pressure source generator in a coal mine, relatively fixed high-pressure liquid is converted into high-pressure rotary equipment for use, and the high-pressure rotary equipment can convey drilling fluids such as clear water, slurry and the like.

The high-pressure rotary water swivel is particularly used for connecting a drilling machine used in a coal mine and a joint of a water pipe. In the process that the drilling machine drills a hole in a coal rock body, pressure-bearing water in the water pipe enters the drilling machine from a high-pressure rotating water braid, enters a drill rod through the drilling machine, and is sprayed out from a nozzle through a joint cutter device to form high-pressure water jet flow, so that the surrounding coal bed is cut, gas in the coal bed is effectively analyzed and released, and the coal bed pressure relief effect is achieved to form high-pressure water jet flow. It can be seen that the high pressure swivel is a specialized component that connects the high pressure hose to the drill pipe and takes over during the entire operation described above.

The existing high-pressure rotary water swivel is generally provided with a rotary part with a rotary flow passage at the outermost part, so that the rotary part is directly contacted with the external environment, and the working environment of the high-pressure rotary water swivel is severe, the diameter of the joint of the rotary part and a fixed part with a fixed flow passage is larger, and the rotary part is easily damaged due to larger friction with the outside in the rotating process, so that the service life of the rotary part is short; and rotating part direct set up externally, in the use or when overhauing under the starting condition, the staff touches rotating part very easily and causes bodily injury, has certain potential safety hazard. So that the rotary part is arranged outside not only at the end of its service life but also with low safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rotatory water braid of high pressure, rotary part set up between fixed part and fixed shell, make rotary part obtain effectual protection, also can not the direct contact rotary part at start-up state lower journey staff, increase rotary part's life and security.

The utility model provides a technical scheme that its technical problem adopted is: a high-pressure rotary water swivel comprises a fixed part, a fixed shell and a rotating part; a fixed flow passage is arranged in the fixed part, and a rotating flow passage is arranged in the rotating part; one end of the fixed component, which is close to the rotating component, is inserted into the rotating component, and the fixed flow passage is communicated with the rotating flow passage; the fixed shell is positioned outside the fixed part and the rotating part, and the inner wall of one end of the fixed shell is contacted with the outer wall of the fixed part, and the inner wall of the other end of the fixed shell is contacted with the outer wall of one end of the rotating part far away from the fixed flow channel; one end of the rotating part, which is in contact with the fixed part, is a large end, and the other end of the rotating part, which is in contact with the inner wall of the other end of the fixed shell, is a small end; a first bearing is arranged between the fixed component and the rotating component, and sealing elements are arranged between the fixed shell and the fixed component as well as between the fixed shell and the rotating component.

Furthermore, a mechanical seal is arranged at the joint of the fixed runner and the rotating runner, the mechanical seal is respectively connected with the fixed part and the rotating part, and the fixed runner and the rotating runner are communicated through the mechanical seal; a main seal is arranged between the rotating part and the fixed part; and the sealing piece arranged between the fixed shell and the fixed component and between the fixed shell and the rotating component is a dustproof sealing piece.

Further, a second bearing is arranged between the fixed shell and the rotating component; and the sealing member that sets up between rotary part and the fixed shell is first dustproof sealing, the sealing member that sets up between fixed shell and the fixed part is second dustproof sealing.

Further, the primary seal includes a gasket and a high pressure combination seal ring.

Further, a first combined seal is arranged between the main seal and the mechanical seal between the rotating component and the fixed component.

Further, the first combined seal (10) is composed of a support ring, a plurality of V-shaped seal rings and a pressure ring.

Furthermore, a second combined sealing ring is arranged between a second bearing between the rotating component and the fixed shell and the dustproof seal.

The utility model provides a theory of operation that its technical problem adopted is: the joint of the rotating part and the fixed part is arranged between the fixed part and the fixed position shell, and one end of the fixed shell, which is in contact with the rotating part, is positioned at the small end of the rotating part, which is far away from the fixed flow channel, so that the large end of the rotating part is basically wrapped by the fixed shell, and the part which is not wrapped is a small end of the rotating part, and the diameter of the part is smaller than that of the fixed shell and a fixed structure connected with the small end, so that the rotating part is not damaged due to excessive friction generated by contact with the outside in the using process, and the service life of the rotating part is not influenced; and when overhauing under use and the starting condition, rotary part most is located fixed shell inside, and the staff also hardly directly touches rotary part, increases equipment security.

The utility model discloses a show the effect and do:

1. the big end of the rotating part is arranged between the fixed part and the fixed shell, so that the rotating part does not generate excessive friction with the outside, and the service life of the device is prolonged.

2. When overhauing in the use and under the starting condition, the staff is difficult for touching rotary part, increases the security of device.

Drawings

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

In the figure: the device comprises a fixed component 1, a fixed flow passage 2, a fixed shell 3, a rotating component 4, a rotating flow passage 5, a first bearing 6, a second bearing 7, a mechanical seal 8, a main seal 9, a first combined seal 10, a second combined seal 11, a first dustproof seal 12 and a second dustproof seal 13.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.

Referring to fig. 1, the high-pressure rotary water swivel comprises a fixed part 1, a fixed shell 3 and a rotary part 4; a fixed flow passage 2 is arranged in the fixed part 1, and a rotating flow passage 5 is arranged in the rotating part 4; one end of the fixed component 1 close to the rotating component 4 is inserted into the rotating component 4, the fixed runner 2 is communicated with the rotating runner 5, and the inside of the fixed component is used for conveying clear water or drilling fluid; the fixed shell 3 is positioned outside the fixed part 1 and the rotating part 4, and the inner wall of one end of the fixed shell is in contact with the outer wall of the fixed part 1, and the inner wall of the other end of the fixed shell is in contact with the outer wall of one end, far away from the fixed flow channel 2, of the rotating part 4; and the one end that rotating part 4 contacts with fixed part 1 is the main aspects, and the one end that contacts with the other end inner wall of fixed housing 3 is the tip, makes rotating part 4 and the sealed department of fixed part 1 be located the inside of fixed housing 3 like this, because the operational environment of device is abominable, can make its rotating part 4 obtain effectual protection like this, increase rotating part 4's security and life. A first bearing 6 is arranged between the fixed component 1 and the rotating component 4, so that the rotating component 4 can rotate smoothly, and sealing elements are arranged between the fixed shell 3 and the fixed component 1 and the rotating component 4. Because the working environment of the device is severe, the rotating part 4 of the device can be effectively protected, and the safety and the service life of the rotating part 4 are improved.

The joint of the rotating component 4 and the fixed component 1 is arranged between the fixed component 1 and the fixed position shell 3, and one end of the inner wall of the other end of the fixed shell 3, which is contacted with the rotating component 4, is positioned at the small end of the rotating component 4, which is far away from the fixed flow channel 2, so that the large end of the rotating component 4 is basically wrapped by the fixed shell, and the part which is not wrapped is the small end of the rotating component 4, the diameter of the part is smaller than that of the fixed shell 3 and the fixed structure connected with the small end, so that the rotating component 4 is not damaged due to excessive friction caused by contact with the outside in the using process, and the service life of the part is not influenced; and when overhauls under use and the starting condition, rotary part 4 is most located fixed shell inside, and the staff also is difficult directly to touch rotary part 4, increases the equipment security.

Further, a mechanical seal 8 is arranged at the joint of the fixed runner 2 and the rotary runner 5, the mechanical seal 8 is respectively connected with the fixed component 1 and the rotary component 4, and the fixed runner 2 is communicated with the rotary runner 5 through the mechanical seal; the fixed end of the mechanical seal 8 is fixedly connected with the periphery of one end, close to the rotary flow channel 5, of the fixed flow channel 2 on the fixed body 1, the rotary end of the mechanical seal 8 is rotatably connected with the periphery of one end, close to the fixed flow channel 2, of the rotary flow channel 5, and the ends, close to each other, of the fixed flow channel 2 and the rotary flow channel 5 can be respectively provided with a protruding hole body of the rotary flow channel 5 and a protruding hole body of the fixed flow channel 2, which are used for connecting the mechanical seal 8, so that the mechanical seal 8 is more convenient and reliable to install; the fixed end and the rotating end of the mechanical seal 8 are provided with seals, and the fixed flow passage 2 and the rotating flow passage 5 achieve the purpose of sealing;

a main seal 9 is arranged between the rotating part 4 and the fixed part 1, the main seal 9 is a high-pressure seal and is mainly used for sealing high pressure in the device, and the mechanical seal 8 and the main seal 9 are matched to completely seal the inside of the device; the sealing capability of the rotating end and the fixed end of the mechanical seal 8 is usually 20MPa, the seal has the main function of preventing solid matters in drilling fluid from entering the primary seal 9 to destroy the sealing performance except for sealing a part of pressure, and the mechanical seal 8 adopts a 109-type mechanical seal 8; the mechanical seal 8 prevents solid pollutants in the fixed flow passage 2 and the rotary flow passage 5 from leaking between the fixed part 1 and the rotary part 4 to damage the main seal 9, the main seal 9 can prevent pressure in the device from leaking, and the mechanical seal 8 has certain pressure resistance, so that the pressure on the main seal 9 is reduced, the purpose of reducing pressure step by step is achieved, and the sealing reliability of the device is improved; the seals provided between the stationary housing 3 and the stationary 1 and rotary 4 components are dust seals so that external contaminants do not enter the device and damage the primary seal 9. The first bearing 7 is arranged between the dust seal and the main seal 9, so that the pressure on the first bearing 6 is small, and the rotating speed is not influenced.

Referring to fig. 1, a second bearing 7 is further disposed between the fixed housing 3 and the rotating component 4, an outer ring of the second bearing 7 is fixed on the fixed housing 3, an inner ring of the second bearing 7 is fixed on the rotating component 4, and the second bearing 7 is matched with the first bearing, so that the rotating component rotates more smoothly; the sealing element arranged between the rotating component and the fixed shell is a first dust seal 12, and the sealing element arranged between the fixed shell and the fixed component 1 is a second dust seal 13; the first dust seal 12 and the second dust seal 13 are used for preventing external silt from entering the fixed component 1 and the rotating component 4 to seal, damaging the main seal and influencing the normal operation of the device.

Further, the primary seal 9 includes a gasket and a high-pressure combination seal ring. The main seal 9 made by the gasket is more stable when being installed, and the high-pressure combined seal ring is adopted to make the pressure resistance of the main seal 9 stronger, thereby being beneficial to improving the sealing reliability and the service life of the device.

Further, a first combined seal 10 is arranged between the main seal 9 and the mechanical seal 8 between the rotating part 4 and the fixed part 1. The sealing performance of the device is improved, air pressure and sediment in drilling fluid can be effectively blocked, the pressure borne by the main seal 9 is further reduced, multi-stage sealing is adopted, the purposes of step-by-step pressure reduction and step-by-step pollution reduction are achieved, when the pressure reaches the first bearing 6 and the dustproof seal, the rotation of the first bearing 6 and the second bearing 7 cannot be influenced due to the small pressure value, meanwhile, the dustproof seal cannot be damaged, and the device can always run normally; the gasket of the primary seal 9 is located between the primary seal 9 and the first combination seal 10, which increases the sealing performance of the device.

Further, the first combined seal 10 is composed of a support ring, a plurality of V-shaped seal rings and a pressure ring. A cavity for installing a first combined seal 10 is arranged between the fixed component 1 and the rotating component 4, then a support ring, a plurality of V-shaped seal rings and a pressure ring are sequentially installed, and 3-5V-shaped seal rings are generally used as the V-shaped combined seal rings; the V-shaped combined sealing ring can work under severe conditions, is insensitive to medium pollution, has long service life, can be combined to work even if the surface quality is poor in height and various purposes, has strong extrusion resistance, and is suitable for occasions with rapid pressure change. Therefore, the first combined seal 10 has certain anti-pollution capability, can seal solid pollutants and has better sealing performance.

Furthermore, a second combined seal 11 is arranged between the second bearing 7 between the rotating component 4 and the fixed shell 3 and the first dust seal 12. Due to the rotation of the rotating component 4, the service life of the first dust seal 12 may be affected, and when the first dust seal 12 is damaged, the second combination seal 11 can also play the role of the first dust seal 12, so as to prevent external silt from entering the device, and prolong the service life of the device. The second combined sealing ring 11 can adopt various radial sealing rings such as a frameless oil seal, a skeleton oil seal, a rubber O-shaped ring and the like.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only for the specific implementation method of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements and improvements made within the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure rotary water swivel is characterized by comprising a fixed part (1), a fixed shell (3) and a rotating part (4); a fixed flow passage (2) is arranged in the fixed part (1), and a rotating flow passage (5) is arranged in the rotating part (4);

one end of the fixed component (1) close to the rotating component (4) is inserted into the rotating component (4), and the fixed flow channel (2) is communicated with the rotating flow channel (5); the fixed shell (3) is positioned outside the fixed part (1) and the rotating part (4), the inner wall of one end of the fixed shell is in contact with the outer wall of the fixed part (1), and the inner wall of the other end of the fixed shell is in contact with the outer wall of one end, far away from the fixed flow channel (2), of the rotating part (4); one end of the rotating part (4) which is in contact with the fixed part (1) is a large end, and the other end of the rotating part which is in contact with the inner wall of the other end of the fixed shell (3) is a small end;

a first bearing (6) is arranged between the fixed component (1) and the rotating component (4), and sealing elements are arranged between the fixed shell (3) and the fixed component (1) and between the fixed shell and the rotating component (4).

2. The high-pressure rotary water braid according to claim 1, wherein a mechanical seal (8) is arranged at the joint of the fixed flow passage (2) and the rotary flow passage (5), the mechanical seal (8) is respectively connected with the fixed part (1) and the rotary part (4), and the fixed flow passage (2) and the rotary flow passage (5) are communicated through the mechanical seal (8);

a main seal (9) is arranged between the rotating part (4) and the fixed part (1); and the sealing pieces arranged between the fixed shell (3) and the fixed part (1) and between the fixed shell and the rotating part (4) are dust-proof sealing pieces.

3. A high-pressure rotary water swivel according to claim 1 or 2, characterized in that a second bearing (7) is further arranged between the stationary housing (3) and the rotating member (4); and the sealing member that sets up between rotary part and the fixed shell is first dust seal (12), the sealing member that sets up between fixed shell and fixed part (1) is second dust seal (13).

4. A high pressure rotary water swivel according to claim 2, characterized in that the primary seal (9) comprises a gasket and a high pressure combination seal ring.

5. A high pressure rotary water braid according to claim 4, characterized in that a first combined seal (10) is further provided between the mechanical seal (8) and the main seal (9) between the rotating part (4) and the stationary part (1).

6. A high pressure rotary water swivel according to claim 5, characterized in that the first combined seal (10) consists of a support ring, a plurality of V-shaped sealing rings and a pressure ring.

7. A high pressure rotary water swivel according to claim 3, characterized in that a second combined seal (11) ring is provided between the second bearing (7) and the dust seal between the rotating part (4) and the stationary housing (3).

8. A high-pressure rotary water swivel according to claim 4, 5 or 6, characterized in that a second combined sealing (11) ring is provided between the second bearing (7) between the rotating part (4) and the stationary housing (3) and the dust seal.