CN206801485U - Portable marine riser auxiliary line pressure testing device - Google Patents

Abstract

The utility model discloses a kind of portable marine riser auxiliary line pressure testing device, including female joint and pin end, female joint and pin end are respectively welded at auxiliary line both ends, and female joint external port is provided with female plug, and female plug external port is connected through a screw thread with pipe joint；Female outer plate is set with the cylindrical step of female plug outer end, benefit core is set with the cylindrical inclined-plane of female joint inner port, mends and is set with female clip plate on the cylindrical step of core, a circle stud is connected between female clip plate and female outer plate；The external port of pin end is provided with male plug；The external peripheral threads of pin end are set with locking nut, and male clip plate is set with the cylindrical step of locking nut, male outer plate is set with the cylindrical step of male plug, another circle stud is connected between male outer plate and male clip plate.It is of the present utility model compact-sized, reliable operation, strong adaptability.

Description

Portable Riser Auxiliary Pipeline Pressure Test Device

technical field

The utility model belongs to the technical field of petroleum machinery and equipment, and relates to a portable water riser auxiliary pipeline pressure test device.

Background technique

The offshore drilling riser is a "throat channel" connecting the underwater blowout preventer group to the drilling platform. Its main functions include providing drilling mud circulation channels, lifting and lowering installation of underwater blowout preventer Tools, supporting auxiliary pipelines and remote information transmission, etc. Riser auxiliary pipelines include choke and kill pipelines, mud pressurization pipelines, hydraulic transmission pipelines, chemical agent injection pipelines, etc. According to the use requirements and working environment of the riser, each auxiliary pipeline carries different pressures.

Riser manufacturers must conduct pressure tests on each newly processed auxiliary pipeline to test the strength and sealing performance of the riser in deep water complex environments; more importantly, the sealing surface of the male and female joints of the auxiliary pipeline in use It is prone to wear and scratches, which seriously affects the sealing performance. It must be repaired mechanically, and it can only be used after passing the pressure test.

Chinese patent (application number 201310290359.2) discloses a riser test device for offshore drilling. The invention provides a riser test device for offshore drilling that can test six pressure pipes of a riser assembly simultaneously. Chinese patent (application number 201420038372.9) discloses a flange tensioning device for a riser test bench, which provides a method for making the stress state of the riser flange close to its actual stress state when testing the riser. Lan tensioning device. The flange tensioning device of the riser test bench includes a riser flange and a plugging flange, and the riser flange and the plugging flange are connected by a tensioning device. Chinese patent (Application No. 201320203972.1) discloses a multi-channel pressure test flange for drilling risers. The axis of the pressure test flange is provided with a pressure test hole in the main body, and the outer circle of the pressure test hole of the main body is arranged in the axial direction. There are multiple auxiliary pipeline pressure test holes, and the main body pressure test holes and all auxiliary pipeline pressure test holes are blind holes.

The above-mentioned patents have the following deficiencies: First, the auxiliary pipeline pressure test process is not good, easy to rework, time-consuming and labor-intensive: the above-mentioned patent must install the auxiliary pipeline and the main body before performing the auxiliary pipeline pressure test, if the auxiliary pipeline and the main body are installed and tested If the pressure is not successful, the auxiliary pipeline must be removed from the main body for repair and then re-installed and pressure tested; second, the universality of the test device is poor: the above-mentioned patents provide large-scale test devices with a high degree of automation. If the riser auxiliary pipeline and the size of the main flange changes slightly, the plugging flange of the test device has to be redesigned and processed; third, the scope of application of the test device is narrow: the test device provided by the above patent is not suitable for the test of the riser auxiliary pipeline after field maintenance. If a certain auxiliary pipeline needs to be tested after repair, the entire riser needs to be transported to the pressure test site for pressure test.

Utility model content

The purpose of the utility model is to provide a portable riser auxiliary pipeline pressure test device, which solves the problem of narrow application range, poor versatility, poor pressure test process, easy rework, and time-consuming and laborious problems of the auxiliary pipeline test device in the prior art. The problem.

The technical solution adopted by the utility model is a portable riser auxiliary pipeline pressure test device, including a female joint and a male joint, the female joint and the male joint are respectively welded at both ends of the auxiliary pipeline, and the outer port of the female joint is installed with a female head The plug, the outer port of the female plug and the pipe joint are connected by threads; the outer circular step of the female plug is set with a female outer pressure plate, and the inner port of the female connector is equipped with a bushing on the outer circle slope, and the outer circle of the bushing A female inner pressure plate is set on the steps, and a circle of stud bolts is connected between the female inner pressure plate and the female outer pressure plate;

The outer port of the male connector is equipped with a male plug; the outer circumferential thread of the male connector is fitted with a lock nut, the outer step of the lock nut is fitted with a male inner pressure plate, and the outer step of the male plug is fitted with a The outer pressure plate of the male head is connected with another circle of stud bolts between the outer pressure plate of the male head and the inner pressure plate of the male head.

The utility model of the portable riser auxiliary pipeline pressure test device is also characterized in that:

Two sets of sealing rings are provided on the contact surface between the female plug and the female joint, and another two sets of sealing rings are provided on the contact surface between the male plug and the male joint.

The bushing is a two-petal structure, and the inner hole of the bushing is provided with a slope that matches the slope of the outer end of the female joint.

The beneficial effect of the utility model is that only a few parts such as female plugs, bushings, male plugs and lock nuts need to be replaced during the pressure test for auxiliary pipelines of different specifications. The utility model has simple structure, convenient operation, and wide application range. It has good versatility, low pressure test cost and reliable performance, and is especially suitable for pressure test of riser auxiliary pipelines on drilling platforms or maintenance sites.

Description of drawings

Fig. 1 is the structural representation of the utility model device;

Fig. 2 is a schematic structural view of the bushing 5 in the device of the present invention;

Fig. 3 is a right side view of Fig. 2 .

In the figure, 1. Pipe joint, 2. Female outer pressure plate, 3. Female plug, 4. Seal ring, 5. Bushing, 6. Female inner pressure plate, 7. Female connector, 8. Male connector, 9 .Lock nut, 10. Male inner pressure plate, 11. Stud bolt, 12. Male plug, 13. Male outer pressure plate, 14. Nut, 15. Auxiliary pipeline.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1, the structure of the device of the present invention is to include a female joint 7 and a male joint 8, the female joint 7 and the male joint 8 are respectively welded to the two ends of the auxiliary pipeline 15, and the outer port of the female joint 7 is equipped with a female plug 3, The contact surface between the female plug 3 and the female connector 7 is provided with two sets of sealing rings 4 for sealing. The outer port of the female plug 3 is connected with the pipe joint 1 through threads, and the other end of the pipe joint 1 is connected with the rubber hose of the pressure test pump to provide liquid inlet. Channel; the outer circular step of the outer end of the female plug 3 is fitted with a female outer pressure plate 2, the outer circular slope of the inner port of the female connector 7 is fitted with a bushing 5, and the outer step of the bushing 5 is fitted with a female inner pressure plate 6 , a ring of stud bolts 11 is connected between the inner pressure plate 6 of the female head and the outer pressure plate 2 of the female head;

The outer port of the male joint 8 is installed with a male plug 12, and the contact surface between the male plug 12 and the male joint 8 is provided with another two sets of sealing rings 4, and the male plug 12 is used to realize the connection between the male joint 8 and the sealing ring 4. Sealing; the outer circumferential thread of the male joint 8 is set with a lock nut 9, the outer circle step of the lock nut 9 is set with a male inner pressure plate 10, and the outer circle step of the male plug 12 is set with a male outer pressure plate 13 , Another ring of stud bolts 11 is connected between the male outer pressure plate 13 and the male inner pressure plate 10 .

Referring to Fig. 2 and Fig. 3, the bushing 5 has a two-lobed structure, and the inner hole of the bushing 5 is provided with a slope that matches the slope of the outer end of the female connector 7, which avoids the need to set a complete plug from the outer end of the male connector 8. The circular bushing 5 enables quick installation of the pressure test device.

The working principle of the present utility model is,

Including the sealing and fixing devices at both ends of the female joint 7 and the male joint 8, the female joint 7 is sealed by the female plug 3 and its sealing ring 4, the bushing 5 is installed on the inclined surface of the outer end of the female joint 7, and the stud bolt 11 , female outer pressure plate 2, female inner pressure plate 6, and nut 14 tighten and fix the female plug 3 and the female joint 7; the male joint 8 is sealed by the male plug 12 and its sealing ring 4, and the lock nut 9 is installed on the external thread of the male joint 8, and the male joint 8 and the male plug 12 are tightened and fixed by using the stud bolt 11, the male internal pressure plate 10, the male external pressure plate 13, and the nut 14.

Claims (3)

1. A kind of 1. portable marine riser auxiliary line pressure testing device, it is characterised in that：It is female including female joint (7) and pin end (8) Joint (7) and pin end (8) are respectively welded at auxiliary line (15) both ends, and female joint (7) external port is provided with female plug (3), female plug (3) external port is connected through a screw thread with pipe joint (1)；It is set with the cylindrical step of female plug (3) outer end There is female outer plate (2), be set with female joint (7) cylindrical inclined-plane of inner port and mend core (5), mend and be set with core (5) cylindrical step There is female clip plate (6), a circle stud (11) is connected between female clip plate (6) and female outer plate (2)；

   The external port of pin end (8) is provided with male plug (12)；The external peripheral threads of pin end (8) are set with locking nut (9) male clip plate (10), is set with the cylindrical step of locking nut (9), is set with the cylindrical step of male plug (12) There is male outer plate (13), another circle stud (11) is connected between male outer plate (13) and male clip plate (10).
2. 2. portable marine riser auxiliary line pressure testing device according to claim 1, it is characterised in that：Described female is blocked up Head (3) is provided with two groups of sealing rings (4) with female joint (7) contact surface, and male plug (12) is provided with pin end (8) contact surface Two groups of other sealing rings (4).
3. 3. portable marine riser auxiliary line pressure testing device according to claim 1, it is characterised in that：Described benefit core (5) it is two-flap type structure, mends the inclined-plane for being provided with core (5) endoporus and being engaged with female joint (7) outer end inclined-plane.