Multifunctional pressure test clamping device for blowout preventer accessory

Abstract

The utility model discloses a multifunctional pressure test clamping device for a blowout preventer accessory, relates to the technical field of pressure test of well control equipment, and aims to solve the problems that a blind plate is troublesome to disassemble and the pressure test efficiency is low. The top face of the base is further connected with two vertically-arranged stand columns, the two stand columns are symmetrically arranged relative to the hydraulic jacking cylinder, a locking cross beam is jointly installed on the two stand columns, a first blind plate is installed on the lower surface of the locking cross beam, and a second blind plate is installed on the upper surface of the hydraulic jacking cylinder. A to-be-tested workpiece is clamped between the first blind plate and the second blind plate.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure testing of well control equipment, in particular to a multifunctional pressure testing clamping device for blowout preventer accessories. Background Art

[0002] In the process of oil and gas well exploitation, a large number of connecting parts are usually required, including blowout preventers, crosses, casing heads, transition flanges, etc. These connecting parts have relatively strict quality requirements when in use, so they need to be strictly inspected before leaving the factory to ensure the safety performance of the parts during use. Pressure testing is a common inspection step. With the continuous improvement of drilling well control safety requirements, the pressure testing of connecting parts has become more stringent. Under the premise of strictly controlling the pressure testing work, it is also necessary to improve the inspection efficiency.

[0003] At present, when testing the pressure of blowout preventer accessories, most of them are done by manually controlling a crane to lift the workpiece to be tested, and then blocking the two ends of the workpiece with blind plates, and then using a pressure measurement system to connect to the other two interfaces of the workpiece to perform pressure testing. In the installation process of the blind plate, it is often necessary to tighten it with bolts, that is, before the test, the blind plate needs to be tightened by tightening the bolts, and after the pressure test is completed, the bolts need to be removed one by one to disassemble the blind plate, which is not only very troublesome, but also greatly reduces the pressure test efficiency. Utility Model Content

[0004] In order to solve the above-mentioned problems, namely, the troublesome removal of the blind plate and the low efficiency of the pressure test, the utility model proposes a multifunctional pressure test clamping device for a blowout preventer accessory, comprising a base, a hydraulic top cylinder is installed on the top surface of the base, two vertically arranged columns are also connected to the top surface of the base, the two columns are symmetrically arranged about the hydraulic top cylinder, a locking beam is commonly installed on the two columns, a blind plate 1 is installed on the lower surface of the locking beam, a blind plate 2 is installed on the upper surface of the hydraulic top cylinder, and a workpiece to be tested is clamped between the blind plate 1 and the blind plate 2.

[0005] The utility model is further configured as follows: a support nut and a locking nut are threadedly connected to the column, and the locking beam is clamped between the support nut and the locking nut.

[0006] The utility model is further configured as follows: an opening is provided on the locking beam, one of the columns is placed in the opening, the other column is rotatably connected to the locking beam, and a stopper is connected to the open end of the opening via a latch.

[0007] The utility model is further configured as follows: a sealing gasket is provided on one side of the blind plate 1 and the blind plate 2 that contacts the workpiece to be measured.

[0008] The utility model is further configured as follows: a mounting portion with a concave arrangement is provided on the upper surface of the base, and the hydraulic jack cylinder is mounted in the mounting portion.

[0009] The beneficial effects of the utility model are:

[0010] 1. By setting up a hydraulic top cylinder and a locking beam, the workpiece to be tested can be clamped between blind plate one and blind plate two, and then the two interfaces of the workpiece to be tested can be sealed by the top tightening of the hydraulic top cylinder, and further pressure test operation can be performed. Through the cooperation of the hydraulic top cylinder and the locking beam, it is no longer necessary to fix the blind plate by tightening the bolts, which greatly shortens the installation and disassembly time of the blind plate, makes the pressure test process simpler and more convenient, and improves the efficiency of the pressure test work.

[0011] 2. Through the cooperation of the opening and the stopper, the purpose of adjusting the rotation of the locking beam can be achieved. Further, when the workpiece to be measured needs to be sent in or taken out, it can avoid the interference between the lifting tool and the locking beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is shown in the structural diagram.

[0013] Figure 2 A schematic diagram of the structure after the block is removed is shown.

[0014] Figure 3 The schematic diagram of the structure after the workpiece to be tested is removed is shown.

[0015] Figure numerals: 1, base; 11, mounting portion; 2, hydraulic top cylinder; 21, blind plate 2; 3, column; 31, support nut; 32, locking nut; 4, locking beam; 41, blind plate 1; 42, opening; 43, stopper; 44, latch; 5, workpiece to be measured. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0017] The utility model proposes a multifunctional pressure test clamping device for blowout preventer accessories, including a rectangular base 1, a hydraulic top cylinder 2 is installed on the top surface of the base 1, the output end of the hydraulic top cylinder 2 is arranged upward, and the hydraulic top cylinder 2 is connected to a hydraulic control system for controlling the operation of the hydraulic top cylinder 2. The hydraulic control system and the hydraulic top cylinder 2 are both purchased parts, and their control processes are also existing technologies, so they are not described here.

[0018] The top surface of the base 1 is also fixedly connected with two columns 3, which are vertically arranged and symmetrically arranged about the hydraulic top cylinder 2. A locking beam 4 is commonly installed on the two columns 3, and the locking beam 4 is arranged parallel to the base 1.

[0019] The lower surface of the locking crossbeam 4 is fixedly connected with a blind plate 1 41, and the output end of the hydraulic jacking cylinder 2 is fixedly connected with a blind plate 2 21, and the lower surface of the blind plate 1 41 and the upper surface of the blind plate 2 21 are both installed with sealing gaskets. The blind plate 1 41 and the blind plate 2 21 are coaxially arranged. The workpiece 5 to be measured is clamped between the blind plate 1 41 and the blind plate 2 21, that is, the two interfaces of the workpiece 5 to be measured that need to be sealed are respectively pressed against the blind plate 1 41 and the blind plate 2 21, and then the workpiece 5 to be measured is pushed upward by the hydraulic jacking cylinder 2, so that the blind plate 1 41 and the blind plate 2 21 clamp the workpiece 5 to be measured, so as to achieve the sealing effect of the two interfaces of the workpiece 5 to be measured, eliminating the step of installing the blind plate by bolts, and the sealing gasket can further enhance the sealing performance.

[0020] After the blind plate 1 41 and the blind plate 21 are used to clamp the workpiece 5 to be tested, the pressure test system can be used to perform pressure testing on the workpiece 5 to be tested. After the test is completed, the hydraulic jacking cylinder 2 is driven to loosen the blind plate 1 41 and the blind plate 21 to release the workpiece 5 to be tested, so that the workpiece 5 to be tested can be removed and replaced with the next workpiece 5 to be tested again.

[0021] The column 3 is also provided with an external thread, and the column 3 is threadedly connected with a support nut 31 and a locking nut 32 through the external thread, and the locking beam 4 is clamped between the support nut 31 and the locking nut 32, and the locking beam 4 is clamped by the support nut 31 and the locking nut 32. The locking nut 32 is arranged above the locking beam 4, and the support nut 31 is arranged below the locking beam 4.

[0022] The locking beam 4 is provided with an opening 42 adapted to the column 3, the size of the opening 42 is larger than the diameter of the column 3, one column 3 is placed in the opening 42, and the other column 3 is sleeved in the locking beam 4, so that relative rotation with the locking beam 4 can be achieved. The opening 42 is connected to a stopper 43 through a latch 44, and the stopper can cover the opening of the opening 42, thereby blocking the column 3 in the opening 42.

[0023] When it is necessary to put in or take out the workpiece 5 to be measured, the stopper 43 is removed by pulling out the latch 44, so that the locking beam 4 can be rotated relative to the other column 3, and the column 3 located in the opening 42 can be separated from the opening 42. That is, the locking beam 4 can be rotated at this time to rotate around the other sleeve column 3, and the locking beam 4 can be rotated to a position where it does not interfere with the lifting tool, so that the lifting tool can more conveniently put in or take out the workpiece 5 to be measured.

[0024] The base 1 is also provided with a mounting portion 11, which is concavely arranged. The hydraulic top cylinder 2 is installed in the mounting portion 11 so that the hydraulic top cylinder 2 can be received in the mounting portion 11 to avoid exposing the base 1. This not only makes the installation of the hydraulic top cylinder 2 more stable and reliable, but also improves space utilization and avoids the cylinder body of the hydraulic top cylinder 2 extending out of the base 1 and occupying a certain clamping space.

[0025] In summary, the utility model can clamp the workpiece 5 to be tested between the blind plate 1 41 and the blind plate 2 21 by setting the hydraulic top cylinder 2 and the locking beam 4, and then the two interfaces of the workpiece 5 to be tested can be sealed by the hydraulic top cylinder 2, and the pressure test operation can be further performed. Through the cooperation of the hydraulic top cylinder 2 and the locking beam 4, it is no longer necessary to fix the blind plate by tightening the bolts, which greatly shortens the installation and removal time of the blind plate, makes the pressure test process simpler and more convenient, and improves the efficiency of the pressure test. Through the cooperation of the opening 42 and the stopper 43, the purpose of adjusting the rotation of the locking beam 4 can be achieved, and further, when the workpiece 5 to be tested needs to be sent in or taken out, it can avoid the interference of the lifting tool with the locking beam 4.

[0026] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0030] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A multifunctional pressure test clamping device for blowout preventer accessories, characterized in that: The invention comprises a base (1), a hydraulic jacking cylinder (2) is mounted on the top surface of the base (1), two vertically arranged columns (3) are also connected to the top surface of the base (1), the two columns (3) are symmetrically arranged with respect to the hydraulic jacking cylinder (2), a locking crossbeam (4) is commonly mounted on the two columns (3), a blind plate 1 (41) is mounted on the lower surface of the locking crossbeam (4), a blind plate 2 (21) is mounted on the upper surface of the hydraulic jacking cylinder (2), and a workpiece (5) to be measured is clamped between the blind plate 1 (41) and the blind plate 2 (21).

2. The multifunctional pressure test clamping device for blowout preventer accessories according to claim 1 is characterized in that: A support nut (31) and a locking nut (32) are threadedly connected to the upright column (3), and the locking crossbeam (4) is clamped between the support nut (31) and the locking nut (32).

3. The multifunctional pressure test clamping device for blowout preventer accessories according to claim 1 is characterized in that: The locking crossbeam (4) is provided with an opening (42), one of the upright posts (3) is placed in the opening (42), the other upright post (3) is rotatably connected to the locking crossbeam (4), and a stopper (43) is connected to the open portion of the opening (42) via a latch (44).

4. The multifunctional pressure test clamping device for blowout preventer accessories according to claim 1 is characterized in that: The surfaces of the blind plate 1 (41) and the blind plate 2 (21) that are in contact with the workpiece (5) to be measured are both provided with sealing gaskets.

5. The multifunctional pressure test clamping device for blowout preventer accessories according to claim 1 is characterized in that: The upper surface of the base (1) is provided with a mounting portion (11) which is arranged in a concave manner, and the hydraulic jacking cylinder (2) is mounted in the mounting portion (11).

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