CN103807495A - U-shaped pipe valve for slug flow pipeline - Google Patents

Abstract

The invention discloses a U-shaped pipe valve used for a slug flow pipeline, which comprises a flanged pipe at the inlet end, a U-shaped shell, a herringbone baffle, a filter screen, a flanged pipe at the outlet end, an inner partition, and a drain valve. The pressure valve, the through hole and the sewage pipe, the flange connection pipe at the inlet end, the flange connection pipe at the outlet end and the U-shaped housing form the A chamber, and the herringbone baffle is composed of two oblique "one" The length of the upstream surface of the herringbone baffle is longer than the diameter of the flange connection at the inlet end, and the inner partition is placed on the side of the herringbone baffle. Above, the inner partition and the upper end of the U-shaped housing form a chamber B. The U-shaped pipe valve disclosed by the present invention has a simple structure, is convenient to install, and is easy to carry out multi-phase separation of slug flow, and can be installed on a pipeline with slug flow, buffers and homogenizes slug flow, and improves the inflow conditions of downstream equipment. Improve the stability of the delivery system.

Description

A U-shaped pipe valve for slug flow pipeline

technical field

The present invention relates to pipe valves, in particular to a U-shaped pipe valve for slug flow pipelines.

Background technique

In the field transportation of oil fields, there is slug flow in the pipeline, which has a great impact on the performance of transportation and mechanical equipment, and it is easy to cause irregular vibration of mixing pumps, delivery pipes, instruments and meters, etc., and affect the service life of equipment.

Contents of the invention

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a U-shaped pipe valve for slug flow pipelines, which can be installed on pipelines with slug flow to buffer and homogenize slug flow, Improve the inflow conditions of downstream equipment and improve the stability of the conveying system.

In order to achieve the above purpose, the present invention provides a U-shaped pipe valve for slug flow pipelines, including an inlet flange adapter, a U-shaped shell, a herringbone baffle, a filter screen, an outlet flange adapter, An inner partition, a pressure relief valve, a through hole and a sewage pipe, the inlet-end flange adapter, the outlet-end flange adapter and the U-shaped housing form the A chamber, and the filter screen is installed on the outlet The end flange connects the front end of the pipe, and is used to filter out the solid particles entrained by the slug flow. The herringbone baffle is composed of two oblique "one"-shaped baffles, which are located in the A chamber. The length of the upstream surface of the glyph-shaped baffle is longer than the diameter of the inlet flange connection, the inner partition is placed above the herringbone-shaped baffle, and the inner partition and the upper end of the U-shaped shell form a In chamber B, the through hole is located on the top of the inner partition, the pressure relief valve 7 is installed on the upper end of the U-shaped housing, and the drain pipe is located at the bottom of the chamber A.

In a preferred embodiment of the present invention, the filter screen is made of corrosion-resistant stainless steel wire.

In another preferred embodiment of the present invention, the angle between the two oblique "one" shaped baffles of the herringbone baffle is greater than 90°.

The U-shaped pipe valve used in the slug flow pipeline provided by the invention has simple structure, convenient installation and easy multi-phase separation of slug flow. It can be installed on pipelines with slug flow to buffer and homogenize slug flow, improve the inflow conditions of downstream equipment, and improve the stability of the conveying system.

The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention.

Description of drawings

Fig. 1 is a schematic structural diagram of a U-shaped pipe valve according to a preferred embodiment of the present invention.

Detailed ways

As shown in Figure 1, a U-shaped pipe valve for slug flow pipelines, including an inlet-end flange adapter 1, a U-shaped shell 2, a herringbone baffle 3, a filter screen 4, and an outlet-end flange adapter 5. Inner partition 6, pressure relief valve 7, through hole 8 and sewage pipe 9. The flange connection 1 at the inlet end, the flange connection 5 at the outlet end and the U-shaped housing 2 form a chamber A, and the filter screen 4 is installed on the front end of the flange connection 5 at the outlet end; the filter screen 4 is made of corrosion-resistant stainless steel wire; The baffle 3 is composed of two oblique "one"-shaped baffles, the included angle is greater than 90° and less than 135°. 6 is placed on the top of the herringbone baffle 3, and forms the B chamber with the upper end of the U-shaped housing 2. There is a through hole 8 on the inner partition 6, and a pressure relief valve 7 is installed on the upper end of the U-shaped housing 2.

The slug flow enters chamber A through the inlet flange connection 1, and the multiphase fluid impacts the herringbone baffle 3, making the liquid phase adhere to the wall surface and flow down along the wall surface; part of the gas in the multiphase flow is separated from the liquid phase Move upward along the upstream face of the herringbone baffle 3, and enter the A chamber through the through hole 8. When the pressure in the A chamber is high, the pressure relief valve 7 can be used for pressure relief. The preliminarily separated fluid enters the lower end of the herringbone baffle 3. Due to the different gas-liquid density, under the V-shaped structure of the lower end of the herringbone baffle 3, the airflow moves along the wall of the baffle, avoiding the direct impact on the filter screen 4.

When the fluid separated from gas and liquid passes through the filter screen 4, the entrained solid particles are filtered out, so as to avoid entering downstream equipment and affecting its performance.

The impurities and waste liquid accumulated at the bottom of the chamber A can be removed through the drain pipe 9.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.

Claims (3)

1. the U-shaped pipe valve for slug flow pipeline, comprise entrance point flange connecting pipe (1), U-shaped housing (2), chevron shaped baffle plate (3), filter screen (4), outlet end flange connecting pipe (5), internal partition (6), Decompression valves (7), through hole (8) and drain pipe (9), it is characterized in that, described entrance point flange connecting pipe (1), described outlet end flange connecting pipe (5) and described U-shaped housing (2) composition A chamber, described filter screen (4) is arranged on described outlet end flange connecting pipe (5) front end, be used for filtering out described slug flow entrained solid particle, described chevron shaped baffle plate (3) is made up of two oblique " one " font baffle plates, be positioned at described A chamber, described chevron shaped baffle plate (3) fluoran stream surface length is longer than the diameter of described entrance point flange connecting pipe (1), described internal partition (6) is placed in the top of described chevron shaped baffle plate (3), described internal partition (6) forms B chamber with described U-shaped housing (2) upper end, described through hole (8) is positioned at described internal partition (6) top, described Decompression valves (7) is arranged on described U-shaped housing (2) upper end, described drain pipe (9) is positioned at the bottom of described A chamber.

2. the U-shaped pipe valve for slug flow pipeline as claimed in claim 1, is characterized in that, described filter screen (4) is made up of corrosion-resistant stainless steel silk.

3. the U-shaped pipe valve for slug flow pipeline as claimed in claim 1, is characterized in that, the angle between described two oblique " one " font baffle plates of described chevron shaped baffle plate (3) is greater than 90 °, is less than 135 °.

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