CN216240480U

CN216240480U - High-pressure-bearing and impact-resistant petroleum pipe joint based on forged piece

Info

Publication number: CN216240480U
Application number: CN202122394785.3U
Authority: CN
Inventors: 沈杰; 汤扬; 刘晓; 张晓录; 沈浩; 陈志鸿; 张振云
Original assignee: Jiangyin Suheng Die Forging Co ltd
Current assignee: Jiangyin Suheng Die Forging Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-08
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a high-pressure-bearing and impact-resistant petroleum pipe joint based on a forging piece, which comprises an upper joint, a lower joint, a limiting block and an elastic element, wherein the upper joint is connected with the lower joint through a bolt; the outer wall of the upper joint is provided with an outer inserting plate, the inner wall of the lower joint is provided with an inner inserting plate, and the outer inserting plate is matched with the inner inserting plate; a third groove is formed in the middle of the upper joint, the limiting block can move radially in the third groove, one end of the elastic element is connected with the bottom of the third groove, and the other end of the elastic element is connected with the inner side of the limiting block; the inner wall of the lower joint is provided with an inner convex block, and the limiting block is matched with the inner convex block. The upper joint and the lower joint are in a plug-in type, and are clamped by the limiting blocks, and joints of the joints are located at two positions, so that the bearing capacity and the impact resistance are high, and oil leakage is not easy to occur after long-time use.

Description

High-pressure-bearing and impact-resistant petroleum pipe joint based on forged piece

Technical Field

The utility model relates to a high-pressure-bearing and impact-resistant petroleum pipe joint based on a forging. Belongs to the field of petroleum exploitation parts.

Background

An oil pipe joint is a component that connects two oil casings. Generally, the pipe diameters of two petroleum casing pipes are different, the existing method is to connect two short joints with the same pipe diameter as the petroleum casing pipes with the petroleum casing pipes respectively, then connect the two short joints with a middle transition pipe, the two short joints and the middle transition pipe form a petroleum pipe joint, the joint of the joint is more, so the bearing capacity and the shock resistance are poor, and after the use time is longer, the danger of oil leakage exists.

Disclosure of Invention

The utility model aims to overcome the defects and provides a high-pressure-bearing and impact-resistant petroleum pipe joint based on a forge piece.

The purpose of the utility model is realized as follows:

the high-pressure-bearing impact-resistant petroleum pipe joint based on the forged piece is characterized in that: comprises an upper joint, a lower joint, a limiting block and an elastic element;

the outer wall of the upper joint is provided with an outer inserting plate, the inner wall of the lower joint is provided with an inner inserting plate, and the outer inserting plate is matched with the inner inserting plate;

a third groove is formed in the middle of the upper joint, the limiting block can move radially in the third groove, one end of the elastic element is connected with the bottom of the third groove, and the other end of the elastic element is connected with the inner side of the limiting block;

the inner wall of the lower joint is provided with an inner convex block, and the limiting block is matched with the inner convex block.

Furthermore, the upper part of the upper joint is provided with a first groove which is matched with the first sealing ring.

Furthermore, the lower part of the upper joint is provided with a second groove which is matched with the second sealing ring.

Further, the elastic element is a compression spring.

Further, the length direction of the elastic element points to the axis line of the upper joint.

Furthermore, the bottom of the limiting block is in arc transition.

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

according to the high-pressure-bearing and impact-resistant petroleum pipe joint based on the forge piece, the upper joint and the lower joint are in a plug-in type, the upper joint and the lower joint are clamped tightly by the limiting blocks, and the joint of the upper joint and the lower joint is located at two positions, so that the high-pressure-bearing and impact-resistant petroleum pipe joint is high in pressure-bearing capacity and impact resistance, and oil leakage is not prone to occurring after long-time use.

Drawings

FIG. 1 is a schematic diagram of a high-pressure-bearing and impact-resistant oil pipe joint based on a forging.

Fig. 2 is a schematic diagram of the upper joint, the limiting block and the elastic element.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Fig. 4 is a cross-sectional view B-B of fig. 2.

Fig. 5 is a schematic view of a lower joint.

Fig. 6 is a cross-sectional view taken along line C-C of fig. 5.

Fig. 7 is a schematic diagram of the process of plugging the upper joint and the lower joint.

Fig. 8 is a schematic view of the upper and lower joints after they are fully tightened.

In the figure:

the sealing device comprises an upper joint 1, a first groove 1.1, a second groove 1.2, an outer inserting connecting plate 1.3, a third groove 1.4, a lower joint 2, an inner inserting connecting plate 2.1, an inner convex block 2.2, a limiting block 3, an elastic element 4, a first sealing ring 5 and a second sealing ring 6.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1, the utility model relates to a high-pressure-bearing and impact-resistant oil pipe joint based on a forging, which comprises an upper joint 1, a lower joint 2, a limiting block 3 and an elastic element 4.

Referring to fig. 2 and 6, the outer wall of the upper joint 1 is provided with an outer inserting plate 1.3, the inner wall of the lower joint 2 is provided with an inner inserting plate 2.1, the outer inserting plate 1.3 is matched with the inner inserting plate 2.1 to enable the upper joint 1 to be connected with the lower joint 2, and the clamping degree and the sealing degree of the upper joint 1 and the lower joint 2 are guaranteed by the inserting mode.

Referring to fig. 3, the upper part of the upper joint 1 is provided with a first groove 1.1, the lower part of the upper joint 1 is provided with a second groove 1.2, the first groove 1.1 is matched with a first sealing ring 5 to seal the upper joint of the upper joint 1 and the lower joint 2, and the second groove 1.2 is matched with a second sealing ring 6 to seal the lower joint of the upper joint 1 and the lower joint 2.

Referring to fig. 2-4, a third groove 1.4 is formed in the middle of the upper joint 1, the limiting block 3 can move radially in the third groove 1.4, one end of the elastic element 4 is connected with the bottom of the third groove 1.4, the other end of the elastic element 4 is connected with the inner side of the limiting block 3, the elastic element 4 is a pressure spring, and the length direction of the elastic element 4 points to the axial lead of the upper joint 1.

Referring to fig. 5-6, the inner wall of the lower joint 2 is provided with an inner convex block 2.2, the bottom of the limiting block 3 is in arc transition, and the limiting block 3 is matched with the inner convex block 2.2.

The working principle is as follows:

the inserting process comprises the following steps: referring to fig. 1, the outer plug plate 1.3 of the upper connector 1 is matched with the inner plug plate 2.1 of the lower connector 2, the upper connector 1 is inserted into the lower connector 2, and the outer side of the limiting block 3 is abutted against the inner wall of the lower connector 2 under the action of the elastic element 4.

The limiting block retracts: referring to fig. 7, the upper joint 1 is continuously inserted into the lower joint 2, the bottom of the limiting block 3 is contacted with the inner convex block 2.2 of the lower joint 2, and the limiting block 3 is pressed to compress the elastic element 4.

Clamping: referring to fig. 8, the upper joint 1 is continuously inserted into the lower joint 2, the outer side of the limiting block 3 is separated from the inner convex block 2.2, the limiting block 3 extends out under the action of the elastic element 4, the top of the limiting block 3 is abutted against the inner convex block 2.2, meanwhile, the upper joint 1 is attached to the upper joint of the lower joint 2, and sealing is completed under the action of the first sealing ring 5; the lower joint of the upper joint 1 and the lower joint 2 is jointed, and sealing is completed under the action of the second sealing ring 6.

The forging is a representative process in plastic deformation, the forging is repeatedly upset and drawn out to enable the forging to generate larger deformation and accumulate larger strain, the main purposes are to refine crystal grains, eliminate the internal defects of the forging and improve the performance of the forging, the structure performance of the material is improved on the whole, and the internal structure, the mechanical property and the service life of the forging exceed those of the casting.

The actual forging process finds that the deformation rate is lower than or higher than 2 mm/s at the deformation temperature of 1000 ℃ and the deformation of 50%, so that the damage value of the forge piece is reduced, and the quality of the forge piece is improved. The forging quality is good when the deformation temperature is 925 ℃, the deformation rate is 1000 mm/s and the deformation is 70%. The influence of each forging process parameter on the maximum damage of the forge piece in the forging deformation process of the forge piece is the deformation rate, the deformation and the deformation temperature in turn.

According to the high-pressure-bearing and impact-resistant petroleum pipe joint based on the forge piece, the upper joint 1 and the lower joint 2 are in a plug-in type, the upper joint and the lower joint are clamped tightly by the limiting blocks, and the joint of the upper joint and the lower joint is located at two positions, so that the high-pressure-bearing and impact-resistant petroleum pipe joint is high in pressure-bearing capacity and impact resistance, and oil leakage is not prone to occurring after long-time use.

In the above embodiments, the present invention is described only by way of example, but those skilled in the art, after reading the present patent application, may make various modifications to the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a high pressure-bearing oil pipe joint that shocks resistance based on forging which characterized in that: comprises an upper joint, a lower joint, a limiting block and an elastic element;

2. The high-pressure-bearing impact-resistant petroleum pipe joint based on the forged piece of claim 1, wherein: the upper part of the upper joint is provided with a first groove which is matched with the first sealing ring.

3. The high-pressure-bearing impact-resistant petroleum pipe joint based on the forged piece of claim 1, wherein: the lower part of the upper joint is provided with a second groove which is matched with the second sealing ring.

4. The high-pressure-bearing impact-resistant petroleum pipe joint based on the forged piece of claim 1, wherein: the elastic element is a pressure spring.

5. The high-pressure-bearing impact-resistant petroleum pipe joint based on the forged piece of claim 1, wherein: the length direction of the elastic element points to the axial lead of the upper joint.

6. The high-pressure-bearing impact-resistant petroleum pipe joint based on the forged piece of claim 1, wherein: the bottom of the limiting block is in arc transition.