CN218762075U

CN218762075U - High-pressure movable elbow

Info

Publication number: CN218762075U
Application number: CN202223018985.XU
Authority: CN
Inventors: 赵向坤; 黄广明; 孟涛; 葛玉星; 刘长君; 王润琪; 陈世杰; 孟开超
Original assignee: Shandong Weima Equipment Technology Co ltd; Shandong Hongfeng Intelligent Equipment Co ltd
Current assignee: Shandong Weima Equipment Technology Co ltd; Shandong Hongfeng Intelligent Equipment Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-28
Anticipated expiration: 2032-11-14

Abstract

The utility model provides a high pressure activity elbow, relates to high pressure manifold technical field, including the public end of elbow, the female end of elbow and sealing member, the sealing member sets up and forms sealedly between the public end of elbow and the female end of elbow, the public end of elbow and the female end swing joint of elbow, the tip of the public end of elbow is equipped with the step, the sealing member is installed on the step, the internal diameter size of the public end of step, elbow and the female end of elbow is unanimous, the utility model discloses a tip at the public end of elbow sets up the step, installs the packing on the step, not with fluid direct contact, and the level and smooth transition of the public end of step and elbow and the female end inside runner of elbow, has avoided the erosion of fluid packing to the high pressure activity elbow, has prolonged the life of high pressure activity elbow.

Description

High-pressure movable elbow

Technical Field

The utility model relates to a high-pressure manifold technical field, concretely relates to high pressure activity elbow.

Background

The high-pressure movable elbow is special pipeline transmission equipment adopted during operations such as oil field drilling, well cementation, fracturing and the like, and the high-pressure movable elbow is extremely easy to cause erosion of fluid to a sealing device at the joint of the high-pressure movable elbow due to severe working environment, high working pressure and large internal flow, so that the sealing of the high-pressure movable elbow is disabled, the construction operation safety is influenced, and major casualty accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure activity elbow can solve the fluid and carry out the erosion to the sealing device of high pressure activity elbow junction, causes the technical problem of the sealed inefficacy of high pressure activity elbow.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a high pressure activity elbow, includes the public end of elbow, the female end of elbow and sealing member, the sealing member sets up and forms sealedly between the public end of elbow and the female end of elbow, the public end of elbow and the female end swing joint of elbow, the tip of the public end of elbow is equipped with the step, the sealing member is installed on the step, the internal diameter size of the public end of step, elbow and the female end of elbow is unanimous.

Preferably, the connection surface of the elbow male end and the elbow female end is provided with three stepped ball paths, each of the ball paths is formed by combining semicircular grooves respectively arranged on the outer wall of the elbow male end and the inner wall of the elbow female end, a plurality of steel balls are arranged in each of the ball paths, and the elbow male end is connected with the elbow female end through the steel balls.

Preferably, a ball way grease injection hole is formed in the female end of the elbow.

Preferably, still be equipped with the seal groove on the face of connecting of elbow public end, the seal groove is located the both sides of three stepped ball tracks, install the sealing washer in the seal groove.

Preferably, the sealing element is a packing seal.

Preferably, the elbow connector further comprises a wave spring, and the wave spring is installed between the sealing piece and the inner end face of the elbow female end.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a tip at the public end of elbow sets up the step, installs the packing on the step, not with fluid direct contact, and the step and the public end of elbow and the female end inside flow channel smooth transition of elbow, has avoided the erosion of fluid to the packing, has prolonged the life of high pressure activity elbow.

2. The utility model discloses a set up wave spring, increased the initial pretightning force of sealing member.

3. The utility model discloses a set up seal groove and sealing washer, the secondary seal not only can be realized to the sealing washer, and the wearing and tearing that cause ball track and steel ball when the extrusion elasticity of sealing washer can also slow down the sharp vibration of elbow simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a front view of a high-pressure movable elbow according to the present invention;

fig. 2 is a sectional view of the joint of the high-pressure movable elbow according to the present invention.

Description of reference numerals:

1-elbow male end, 2-elbow female end, 3-sealing element, 4-step, 5-ball channel, 6-steel ball, 7-ball channel grease injection hole, 8-sealing groove, 9-sealing ring and 10-wave spring.

Detailed Description

The invention will be described in detail below with reference to the drawings attached hereto by way of example, and it will be apparent that the described embodiments are only some, but not all, embodiments of the invention.

As shown in fig. 1-2, a high-pressure movable elbow comprises an elbow male end 1, an elbow female end 2 and a sealing element 3, wherein the sealing element 3 is arranged between the elbow male end 1 and the elbow female end 2 to form sealing, the elbow male end 1 is movably connected with the elbow female end 2, a step 4 is arranged at the end part of the elbow male end 1, the sealing element 3 is arranged on the step 4, and the step 4, the elbow male end 1 and the elbow female end 2 are consistent in inner diameter. In the embodiment, the sealing element 3 is separated from the fluid by the step 4, so that erosion caused by direct contact of the fluid and the sealing element 3 is avoided, and the service life of the sealing element 3 is prolonged; meanwhile, the flow channels in the elbow male end 1, the elbow female end 2 and the step 4 are in smooth transition, so that the erosion of fluid to the joint of the high-pressure movable elbow is effectively reduced, and the service life of the high-pressure movable elbow is further prolonged.

Further, in this embodiment, three stepped ball tracks 5 are provided on the connection surface of the male end 1 of the elbow and the female end 2 of the elbow, the ball tracks 5 are formed by combining semicircular grooves respectively provided on the outer wall of the male end 1 of the elbow and on the inner wall of the female end 2 of the elbow, a plurality of steel balls 6 are installed in the ball tracks 5, and the male end 1 of the elbow is connected with the female end 2 of the elbow through the steel balls 6, so that the directions of the male end 1 of the elbow and the female end 2 of the elbow can be conveniently adjusted.

Further, in this embodiment, the elbow female end 2 is provided with a ball way grease injection hole 7, and lubricating oil is injected into the ball way 5 through the ball way grease injection hole 7, so that abrasion is reduced.

Further, in this embodiment, a sealing groove 8 is further provided on the connecting surface of the elbow male end 1, the sealing groove 8 is located on two sides of the three stepped ball paths 5, and a sealing ring 9 is installed in the sealing groove 8. Do benefit to the sealed effect that increases high pressure activity elbow through setting up the double containment, the extrusion elasticity of sealing washer 9 can also slow down the wearing and tearing that cause ball way 5 and steel ball 6 when the elbow acutely vibrates simultaneously, and then has strengthened the life of high pressure activity elbow.

Further, in the present embodiment, the sealing member 3 is a packing seal. The packing adopts carbon fiber as the main material, the carbon fiber is a new material with excellent mechanical property, the carbon fiber has no creep deformation, good fatigue resistance, small thermal expansion coefficient, good corrosion resistance and good thermal conductivity, and is mainly used under the working conditions of high temperature, high pressure and wear resistance.

Further, in the present embodiment, a wave spring 10 is further included, and the wave spring 10 is installed between the sealing member 3 and the inner end surface of the elbow female end 2. The wave spring 10 is beneficial to increasing the initial pretightening force of the sealing element 3, avoids leakage and is particularly suitable for being used in a low-pressure environment.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the application concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides a high pressure activity elbow, includes that elbow public end (1), the female end of elbow (2) and sealing member (3), sealing member (3) set up and form sealedly between elbow public end (1) and the female end of elbow (2), elbow public end (1) and the female end of elbow (2) swing joint, its characterized in that: the end part of the elbow male end (1) is provided with a step (4), the sealing element (3) is installed on the step (4), and the inner diameter sizes of the step (4), the elbow male end (1) and the elbow female end (2) are consistent.

2. The high-pressure movable elbow according to claim 1, wherein: be equipped with three cascaded fairways (5) on the face of being connected of public end of elbow (1) and female end of elbow (2), fairway (5) are formed by seting up respectively on public end of elbow (1) outer wall and seting up the semicircular groove combination on female end of elbow (2) inner wall, install a plurality of steel balls (6) in fairway (5), public end of elbow (1) is connected through steel ball (6) with female end of elbow (2).

3. The high-pressure movable elbow according to claim 1, wherein: and a ball way grease injection hole (7) is formed in the elbow female end (2).

4. The high-pressure movable elbow according to claim 2, wherein: still be equipped with seal groove (8) on the connection face of elbow public end (1), seal groove (8) are located the both sides of three cascaded ball tracks (5), install sealing washer (9) in seal groove (8).

5. The high-pressure movable elbow according to claim 1, wherein: the sealing element (3) is sealed by a packing.

6. The high-pressure movable elbow according to claim 1, wherein: the elbow is characterized by further comprising a wave spring (10), wherein the wave spring (10) is installed between the sealing element (3) and the inner end face of the elbow female end (2).