Ablation-resistant pipe joint

A technology of anti-erosion and pipe joints, applied in the field of pipe joints, can solve the problems of hours or even hours, waste of resources, environment, impact on production, etc., and achieve the effect of reducing losses, prolonging service life, and reducing impact

Inactive Publication Date: 2007-08-15
JIANHU COUNTY HONGDA VALVE FITTINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the pressure of the working medium is as high as more than 100 Mpa, the pipe joints need to bear a huge impact force, especially in the treatment of blowout (well kick, overflow) accidents, the general pipe joints made of quenched and tempered steel, more than ten hours, even several hours Hours, it will be eroded and broken down by the high-pressure, high-speed working medium flow, and it needs to be replaced and repaired immediately, which will seriously affect production and cause waste of resources and environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0019] Embodiment 1, as shown in Figure 1: offer three through holes 2-1, 2-2, 2-3 on the pipe joint body 1 that is made of 35CrMo (or 25CrNiMoE) alloy steel, constitute three-way pipe joint (commonly known as is a tee), and the three through holes 2-1, 2-2, 2-3 are distributed in a T shape; at the confluence of the three through holes 2-1, 2-2, 2-3 in the inner cavity of the body 1, there is a The working medium buffer cavity 5 is provided with a screen tube 3 made of hard alloy GY8, the axis of the screen tube 3 is perpendicular to the through holes 2-1 and 2-2 where the working medium enters, and the screen tube Several screen holes 4 are opened on the side wall of 3; and the inner diameter of the screen pipe 3 is the same as that of the through hole 2-3.

[0020] When in use, when the high-speed, high-pressure working medium enters the body 1 from the through holes 2-1, 2-2 (or one of them) through the screen hole 4, it is buffered in the cavity 5 and forms a flow directio...

Embodiment II

[0022] Embodiment II, as shown in Figure 2: the pipe joint body 1 made of 35CrMo alloy steel is provided with four through holes 2-1, 2-2, 2-3, 2-4, forming a four-way pipe joint, The four through holes 2-1, 2-2, 2-3, 2-4 are distributed in a cross shape. At the confluence of the four through holes 2-1, 2-2, 2-3, and 2-4 in the inner cavity of the body 1, there is a cavity 5 for buffering the working medium, and the cavity 5 is made of hard alloy GY8. The screen tube 3, the axis of the screen tube 3 is perpendicular to the through holes 2-2, 2-4 where the working medium enters, and several screen holes 4 are opened on the side wall of the screen tube 3; -1, 2-3 have the same inner diameter.

[0023] When in use, when the high-speed, high-pressure working medium enters the body 1 from the through holes 2-4, 2-2 (or one of them), it flows out from the other through holes.

[0024] If the working medium enters through the through holes 2-1, 2-3 (or one of them), the screen tube...

Embodiment III

[0025] Embodiment III, as shown in Figure 3: the pipe joint body 1 made of 25CrNiMoE alloy steel is provided with four through holes 2-1, 2-2, 2-3, 2-4 to form a four-way pipe joint, Three of the through holes 2-1, 2-3, 2-4 are on the same horizontal plane and are T-shaped, and the fourth through hole 2-2 is located in the three through holes 2-1, 2-3, 2-4 On the vertical plane of the confluence, and perpendicular to the above-mentioned three through holes 2-1, 2-3, 2-4; four through holes 2-1, 2-2, 2-3, 2-4 in the body The confluence is provided with a cavity 5 for working medium buffering, and a screen tube 3 made of cemented carbide GY8 is provided in the cavity 5, and the axis of the screen tube 3 is connected with the through holes 2-1 and 2-3 where the working medium enters , 2-4 are perpendicular to each other, and several screen holes 4 are opened on the side wall of the screen pipe 3 .

[0026] When in use, when the high-speed, high-pressure working medium enters the...

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Abstract

The invention provides an anti-abrasion tube connector, wherein its body is arranged with 3-6 through holes. The invention is characterized in that the collected part of the through holes is arranged with a chamber for buffering working medium, while the chamber contains a screen tube made from rigid alloy, the axis of the screen tube is vertical to the through hole via which the working medium enters in, the side of the screen tube is arranged with several screen holes. Therefore, the invention can reduce the impact of working medium on the inner wall of the body, to reduce abrasion and improve safety or the like.

Description

Technical field [0001] The invention relates to a pipe joint in an oil and gas manifold, in particular to an anti-erosion pipe joint. Background technique [0002] Various manifolds are used in oil and gas extraction and transportation, especially in well control equipment. The manifold is composed of various valves, pipelines, and pipe joints. The pipe joints, such as three-way, four-way, and five-way, are used to change the flow direction and diversion of oil and gas and drilling fluid. Since the pressure of the working medium is as high as more than 100 Mpa, the pipe joints need to bear a huge impact force, especially in the treatment of blowout (well kick, overflow) accidents, the general pipe joints made of quenched and tempered steel, more than ten hours, even several hours Hours, it will be eroded and broken down by the high-pressure, high-speed working medium flow, and it needs to be replaced and repaired immediately, which seriously affects production, and causes w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L41/00F16L55/02
Inventor 吴启春仇品先
Owner JIANHU COUNTY HONGDA VALVE FITTINGS CO LTD
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