CN203853999U - Tool for tripping and recycling underwater control module - Google Patents

Abstract

The utility model discloses an underwater control module lowering recovery tool, which comprises an upper cylinder and a lower cylinder. The upper cylinder is connected with the lower cylinder through three groups of hydraulic buffers. The upper cylinder is provided with a hydraulic system. The end of the cylinder extending into the inner cavity of the lower cylinder is equipped with a hoisting locking mechanism, and a guide cylinder is installed on the outer wall of the lower cylinder through a fixed bracket. The device of the utility model has the advantages of compact structure, high degree of integration, convenient operation, wide range of operating water depth, etc., and can fully meet the requirements of underwater control module launching and recovery within the range of 3000 meters of water depth; in order to realize the underwater The underwater entry and recovery operation of the control module provides a feasible technical solution. Moreover, by changing the size of the guide cylinder, the hydraulic cylinder and the locking block, it is applicable to underwater control modules of different specifications, which facilitates the generalized modification design of the product.

Description

The underwater control module is lowered into the recovery tool

technical field

The utility model belongs to the technical field of marine oil and gas production equipment and is used for the operation of launching and recovering underwater control modules, in particular to a tool for launching and recovering underwater control modules. the

Background technique

The subsea control module is the key equipment of the subsea production control system, which is mainly used for the control and monitoring of subsea oil and gas production equipment such as subsea trees and subsea manifolds. During the use of the underwater control module, regular recovery and maintenance and re-installation are required, so a special underwater tool is required for launching and recovery control. At present, the domestic development of underwater control modules is still in its infancy, and the dedicated launching/recovery tools for underwater control modules are basically blank, and technical development is yet to be carried out. the

Utility model content

The purpose of this utility model is to provide an underwater control module entry and recovery tool, which has the characteristics of compact structure, high degree of integration, and convenient operation, so as to meet the underwater entry and recovery of underwater control modules within the range of 3000 meters of water depth Work requirements. the

The technical scheme adopted by the utility model is: a underwater control module lowering recovery tool, including an upper cylinder and a lower cylinder, the upper cylinder is connected with the lower cylinder through three sets of hydraulic buffers, and the upper cylinder is provided with In the hydraulic system, the end of the upper cylinder extending into the inner cavity of the lower cylinder is equipped with a hoisting locking mechanism, and a guide cylinder is installed on the outer wall of the lower cylinder through a fixed bracket. the

The underwater control module of the utility model is lowered into the recovery tool, and its characteristics are also as follows:

The hoisting locking mechanism consists of three parts: the hoisting connector, the lowering recovery mechanism and the transporting locking mechanism. The two pin shafts at the end are respectively connected with the hoisting connector and the transfer locking mechanism as a whole. the

A hydraulic cylinder is installed in the cavity of the lowering recovery mechanism, an operating handle two is installed on the outer surface of the lowering recovery mechanism, and a semi-cylindrical locking groove corresponding to the second operating handle is arranged on the cylinder body of the lowering recovery mechanism. the

Three groups of locking blocks are arranged on the circumference of the lower end of the transfer locking mechanism, and a semi-cylindrical locking groove corresponding to the operating handle is provided on the inner cylinder of the transfer locking mechanism. the

The beneficial effect of the utility model is that it has the advantages of compact structure, high degree of integration, convenient operation, wide range of operating water depth, etc., and can fully meet the requirements of underwater control module entry and recovery operations within the range of 3000 meters of water depth; The underwater entry and recovery operation of the underwater control module provides a feasible technical solution. Moreover, by changing the size of the guide cylinder, the hydraulic cylinder and the locking block, it can be applied to underwater control modules of different specifications, which facilitates the generalized modification design of the product. the

Description of drawings

Fig. 1 is the overall structure schematic diagram of the underwater control module of the present utility model entering the recovery tool;

Fig. 2 is a structural schematic diagram of the hoisting locking mechanism 1 in the present invention. the

In the figure, 1. Hoisting and locking mechanism, 2. Lower cylinder, 3. Hydraulic buffer, 4. Upper cylinder, 5. Guide cylinder, 6. Hydraulic system, 7. Hoisting connector, 8. Lowering and recovery mechanism , 9. Transfer locking mechanism, 10. Lock block, 11. One operating handle, 12. Two operating handles, 13. Hydraulic cylinder. the

Detailed ways

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

With reference to Fig. 1, the structure of the device of the present invention is, comprises hoisting locking mechanism 1, lower cylinder body 2, hydraulic buffer 3, upper cylinder body 4, guide cylinder 5, hydraulic system 6, wherein upper cylinder body 4 passes three The group hydraulic buffer 3 is connected with the lower cylinder 2, the upper cylinder 4 is provided with a hydraulic system 6, and the end of the upper cylinder 4 extending into the inner cavity of the lower cylinder 2 is equipped with a hoisting locking mechanism 1, and the lower cylinder 2. A guide cylinder 5 is installed on the outer wall through a fixed bracket. the

There is a standard hydraulic interface on the top of the upper cylinder 4, which is used to provide external control fluid supply for the hydraulic system 6; the guide cylinder 5 is suitable for shallow water operation conditions, and is used in conjunction with the guide rod on the underwater oil and gas production equipment. Its installation The position can be adjusted according to the guide rod; at the same time, an adjustable counterweight is installed on the guide cylinder 5 to prevent the underwater control module from being lowered into the recovery tool to overturn during the process of hoisting the underwater control module. The outer wall of the lower cylinder body 2 is provided with a guide block, which is suitable for the lowering operation when there is no guide rod under the deep water operation condition. the

Referring to Figure 2, the hoisting and locking mechanism 1 is a key component of the underwater control module's entry and recovery tool, including three parts: the hoisting connector 7, the lowering and recovery mechanism 8, and the transfer and locking mechanism 9, wherein the hoisting connector 7 passes through Multiple sets of high-strength bolts are assembled upwards with the upper cylinder 4, and the hoisting connector 7 fully meets the strength requirements and universal deflection requirements when the underwater control module is lowered into the recovery tool when the underwater control module is hoisted. The lower-entry recovery mechanism 8 is connected with the hoisting connector 7 and the transfer locking mechanism 9 through two pin shafts at the upper and lower ends respectively, and the lower-entry recovery mechanism 8 adopts a structure of hydraulic drive and mechanical locking; A hydraulic cylinder 13 is installed in the inner cavity of the mechanism 8, and the hydraulic cylinder 13 completes the movement control of the entry and recovery of the underwater control module by driving the inner cylinder of the recovery mechanism 8; the outer surface of the recovery mechanism 8 is equipped with an operating Handle two 12, go down into recovery mechanism 8 inner shell and be provided with the semi-cylindrical locking groove corresponding to operating handle two 12, control the locking and unlocking of hydraulic cylinder 13 by operating handle two 12. The transfer locking mechanism 9 adopts a mechanical locking structure, three groups of locking blocks 10 are arranged on the circumference of the lower end of the transfer locking mechanism 9, and the inner cylinder of the transfer locking mechanism 9 is provided with a half cylinder corresponding to the operating handle 11 Form locking groove, controls the locking and unlocking of three groups of locking blocks 10 of the circumference of the lower end of the transfer locking mechanism 9 by operating handle one 11. Both the first operating handle 11 and the second operating handle 12 adopt a standard ROV interface, which is convenient for the underwater robot to perform locking and unlocking operations. the

The working process of the underwater control module of the utility model entering the recovery tool is,

When the underwater control module is lowered, the tool is guided to the designated position through the guide cylinder 5 or the guide block of the lower cylinder 2. After the lower cylinder 2 is placed on the predetermined parking device, under the action of the hydraulic buffer 3, the water The lower control module will be lowered slowly to prevent impact. The underwater robot rotates the operating handle 2 12 from the "L" position to the "U" position, and goes down into the recovery mechanism 8 to unlock. The external hydraulic source enters the hydraulic system 6 through the hydraulic interface at the top of the upper cylinder 4, pushes the hydraulic cylinder 13 out, and the underwater control module is lowered to a designated position. After the underwater control module is put in place, the underwater robot rotates the operating handle 11 from the "L" position to the "U" position, and the transport locking mechanism 9 is unlocked. The hydraulic system 6 drives the hydraulic cylinder 13 to retract, the transfer locking mechanism 9 is separated from the underwater control module, the underwater robot rotates the operating handle 2 12 from the "U" position to the "L" position, and the lowering operation is completed. the

The underwater control module is lowered into the recovery tool to recover the underwater control module. The working principle is the same, and the operation sequence is opposite to that of the lowering operation. the

Claims (4)

1. An underwater control module lowering recovery tool, which is characterized in that it includes an upper cylinder (4) and a lower cylinder (2), and the upper cylinder (4) is connected to the lower cylinder through three sets of hydraulic buffers (3) body (2), the upper cylinder (4) is equipped with a hydraulic system (6), and the end of the upper cylinder (4) extending into the inner cavity of the lower cylinder (2) is equipped with a hoisting locking mechanism (1) , a guide cylinder (5) is installed on the outer wall of the lower cylinder body (2) by a fixed bracket. the 2. The underwater control module running recovery tool according to claim 1, characterized in that: the lifting locking mechanism (1) includes a lifting connector (7), a running recovery mechanism (8) and a transport The locking mechanism (9) has three parts, the hoisting connector (7) is assembled upward with the upper cylinder (4) through multiple sets of high-strength bolts, and the recovery mechanism (8) is lowered through the two pin shafts at the upper and lower ends They are respectively connected with the hoisting connector (7) and the transfer locking mechanism (9) into one body. the 3. The underwater control module running recovery tool according to claim 2, characterized in that: a hydraulic cylinder (13) is installed in the cavity of the falling recovery mechanism (8), and the falling recovery mechanism (8) Two operating handles (12) are installed on the outer surface, and a semi-cylindrical locking groove corresponding to the operating handle two (12) is provided on the inner shell of the recovery mechanism (8). the 4. The underwater control module lowering recovery tool according to claim 2 is characterized in that: the circumference of the lower end of the transfer locking mechanism (9) is provided with three groups of locking blocks (10), and the transfer locking mechanism (9) The inner cylinder body is provided with a semi-cylindrical locking groove corresponding to the operating handle one (11). the