Deepwater replaceable valve device and operation method

Abstract

The invention provides a deepwater replaceable valve device and an operation method, and relates to the technical field of deep sea equipment, the deepwater replaceable valve device comprises a valve and a machine base, the valve comprises a gate valve body and a positioner male head, the machine base comprises a base, the base is provided with a positioner female hole, and the positioner female hole and the positioner male head are in positioning connection; the portions, on the two sides of the positioner female hole, of the pipeline are both connected with valve connecting pipes in a dynamic sealing mode, and the two valve connecting pipes are both connected with corresponding connectors in the gate valve body in a sealing mode. The base further comprises a driving system, and the driving system drives the valve connecting pipes on the two sides of the positioner female hole to be close to or away from each other. The valve can be opened and closed by an underwater robot through a standard torque tool wrench, complex operations such as bolt disassembly and installation are avoided in the replacement operation process, underwater replacement of the valve can be conveniently achieved through the underwater robot, and operation of a diver is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of deep-sea equipment, and in particular to a deep-water replaceable valve device and an operating method. Background Art

[0002] Valves are often used in deep sea and underwater engineering fields. Valves are installed in the pipeline system, and the pipeline and other equipment form a larger underwater system. The cost of lifting the entire underwater system to the deck of the surface ship for maintenance is too high, so the number of times the system needs to be lifted to the surface for maintenance should be minimized. Underwater valves work in the deep sea, with high pressure and strong corrosive seawater. Although a lot of special measures have been taken from the design and process perspectives, there is still a probability of failure for underwater valves, especially high-pressure valves that are frequently operated underwater.

[0003] The existing Chinese patent application document with publication number CN213451942U discloses a high-nickel corrosion-resistant valve system specially used for deep-sea pipelines, including a valve and a support frame, wherein the valve includes a valve body, connecting pipes are arranged on both sides of the valve body, and an anti-corrosion coating layer is arranged on the inner side of the connecting pipe; the support frame includes a pair of protective sleeves respectively mounted on the connecting pipes, the inner side of the protective sleeves is provided with an anti-decarburization layer, the outer edge of the protective sleeve is provided with a flange located at the end of the connecting pipe, a sealing ring is provided between the flange and the connecting pipe, an adjusting frame is provided at the lower end of the protective sleeve, the adjusting frame is connected to the base through the support frame, and a plurality of adjusting gaskets are arranged between the base and the support frame.

[0004] In the prior art, in order to avoid system shutdown due to valve failure and the need to lift the system to the surface for maintenance, it is urgent to develop a valve device that can be replaced underwater, in which an underwater robot can replace the valve through a manipulator and a standard torque tool wrench, and can operate the valve to open and close. Summary of the invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a deep-water replaceable valve device and an operating method.

[0006] A deepwater replaceable valve device provided according to the present invention comprises a valve and a machine base, wherein the valve comprises a plug valve body and a positioner male head, the machine base comprises a base, a positioner female hole is arranged on the base, the positioner female hole and the positioner male head are positioned and connected; the pipelines on both sides of the positioner female hole are dynamically and sealedly connected with connecting valve pipes, and the two connecting valve pipes are sealedly connected with corresponding interfaces on the plug valve body; the base also comprises a driving system, and the driving system drives the connecting valve pipes on both sides of the positioner female hole to move closer to or away from each other.

[0007] Preferably, the drive system includes a transmission shaft, a reducer, a slider, a slide rail and a lead screw. The transmission shaft is transmission-connected to the input end of the reducer, and the output end of the reducer is transmission-connected to the lead screw. The two ends of the lead screw extend to the two sides of the positioner mother hole respectively, and the threads at the two ends of the lead screw have opposite rotation directions. A slide rail is provided on the base, and the slider is threadedly engaged with one at each end of the lead screw. Any of the sliders is slidably set in the slide rail, and any of the sliders is tightly connected to the valve tube located on the same side of the positioner mother hole.

[0008] Preferably, the transmission shaft is rotatably mounted on the base, and a second torque tool female port is provided at one end of the rotating rod away from the reducer.

[0009] Preferably, the reducer is located in the lower middle part of the positioner female hole.

[0010] Preferably, a second sealing ring is provided between the valve connecting pipe and the fixed pipe.

[0011] Preferably, a first sealing ring is provided at any interface of the plug-in valve body, and the first sealing ring seals and connects the interface of the plug-in valve body with the valve connecting pipe.

[0012] Preferably, a carrying handle is provided on the gate valve body, the male head of the positioner is provided at the bottom of the gate valve body, and the carrying handle is provided at the upper part of the gate valve body.

[0013] Preferably, a first torque tool female port is provided on the side of the gate valve body, and the first torque tool female port is rotated to open or close the valve.

[0014] According to the present invention, a deep-water replaceable valve device and an operation method are provided, and the operation method includes an installation method:

[0015] Step S1, rotating the female port of the second torque tool to move the two valve connecting pipes away from each other;

[0016] Step S2, inserting the male connector of the locator into the male connector of the locator;

[0017] Step S3, rotating the female port of the second torque tool to make the two valve connecting pipes close to each other and respectively sealingly connected with corresponding interfaces on the female port of the second torque tool to make the two valve connecting pipes away from each other;

[0018] Step S4, rotating the female port of the first torque tool to open the valve.

[0019] Preferably, the working method comprises a disassembly method;

[0020] Step S1.1, rotating the female port of the first torque tool to close the valve;

[0021] Step S2.1, rotating the female port of the second torque tool to move the two connecting valve pipes away from each other, and the two connecting valve pipes are separated from the plug-in valve body;

[0022] Step S3.1, the male connector of the locator is separated from the female connector of the locator.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention realizes the installation and positioning of the valve on the machine base by setting the male head of the positioner to be connected with the female hole of the positioner. A first torque tool female port is set on the valve, and the valve can be opened and closed by an underwater robot using a standard torque tool wrench. A second torque tool female port is set on the machine base to achieve synchronous closing and opening of the valve pipes on both sides. The replacement operation process does not require complex operations such as bolt disassembly and installation. The underwater replacement of the valve can be conveniently realized by the underwater robot without the need for diver operation.

[0025] 2. During the valve replacement process of the present invention, the pipe connection flanges at both ends are fixed in position and will not affect the external connection pipes. An axial sealing telescopic structure is adopted, and the valve and the pipes on both sides are straight-through without bends, with small resistance and not easy to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of a replaceable valve device mainly embodied in the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the base that mainly embodies the present invention;

[0029] Figure 3 This is a cross-sectional view of the overall structure of the base that mainly embodies the present invention;

[0030] Figure 4 This is a schematic diagram of the overall structure of the valve mainly embodied in the present invention.

[0031] As shown in the figure:

[0032] Valve 1 Slide 203

[0033] Gate valve body 101 Screw 204

[0034] Carrying handle 102 Slider 205

[0035] First sealing ring 103 reducer 206

[0036] Positioner male 104 drive shaft 207

[0037] First torque tool female port 105 Second torque tool female port 208

[0038] Base 2 Positioner female hole 209

[0039] Base 201 Second sealing ring 210

[0040] Pipe connection flange 202 Valve pipe 211 DETAILED DESCRIPTION

[0041] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0042] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, a deepwater replaceable valve device and operation method provided by the present invention include a valve 1 and a base 2, wherein the valve 1 includes a plug valve body 101 and a positioner male head 104, and the base 2 includes a base 201, and a positioner female hole 209 is provided on the base 201, and the positioner female hole 209 and the positioner male head 104 are positioned and connected. The pipelines on both sides of the positioner female hole 209 are dynamically sealed and connected with connecting valve pipes 211, and the two connecting valve pipes 211 are sealed and connected with the corresponding interfaces on the plug valve body 101; the base 201 also includes a driving system, and the driving system drives the connecting valve pipes 211 on both sides of the positioner female hole 209 to move closer to or away from each other.

[0043] Specifically, the drive system includes a transmission shaft 207, a reducer 206, a slider 205, a slide rail 203 and a lead screw 204. The transmission shaft 207 is connected to the input end of the reducer 206 by transmission, and the output end of the reducer 206 is connected to the lead screw 204 by transmission. The two ends of the lead screw 204 extend to the two sides of the positioner female hole 209 respectively, and the threads at the two ends of the lead screw 204 are in opposite directions. The base 201 is provided with a slide rail 203, and the slider 205 is threadedly matched with one at each end of the lead screw 204. Any slider 205 is slidably arranged in the slide rail 203, and any slider 205 is fastened to the valve connecting pipe 211 located on the same side of the positioner female hole 209. The transmission shaft 207 is rotatably mounted on the base 201, and the end of the rotating rod away from the reducer 206 is provided with a second torque tool female port 208. A second sealing ring 210 is provided between the valve connecting pipe 211 and the fixed pipeline. In a feasible implementation mode: the base 201 is the installation base, and all components are integrated on the base 201. The pipeline connection flange 202 is the interface for connecting the external pipeline to the device of the present application. The connecting valve pipe 211 is arranged on the inner side of the pipeline connection flange 202, and can move along its axis, and the axial sealing between the connecting valve pipe 211 and the pipeline connection flange 202 is achieved by the second sealing ring 210. A slide rail 203 is arranged on the base 201, and the lead screw 204 drives the slider 205 to move on the slide rail 203. Both ends of the lead screw 204 are positive and negative threaded lead screws 204. When the lead screw 204 rotates forward, the left slider 205 moves left, and the right slider 205 moves right. Drive the two connecting valve pipes 211 on both sides to close or open. The second torque tool female port 208 is connected to the transmission shaft 207, and the rotational motion of the standard torque tool wrench of the underwater robot is transmitted to the reducer 206 through the second torque tool female port 208 and the transmission shaft 207. The reducer 206 is a worm gear reducer 206, which drives the lead screw 204 to rotate.

[0044] In a preferred embodiment, the reducer 206 is located in the middle below the positioner female hole 209 , which helps to improve the synchronization of the movement of the two connecting valve tubes 211 .

[0045] More specifically, a first sealing ring 103 is provided at any interface of the plug valve body 101, and the first sealing ring 103 seals and connects the interface of the plug valve body 101 with the valve connecting pipe 211. A carrying handle 102 is provided on the plug valve body 101, a positioner male head 104 is provided at the bottom of the plug valve body 101, and the carrying handle 102 is provided at the upper part of the plug valve body 101. A first torque tool female port 105 is provided on the side of the plug valve body 101, and the first torque tool female port 105 is rotated to open or close the valve 1. In a feasible embodiment: the plug valve body 101 has the same structure as the commonly used plug valve on land. The carrying handle 102 is a carrying interface provided on the valve 1 according to the clamping interface of the underwater robot manipulator, and can be reliably clamped by the underwater robot manipulator. One first sealing ring 103 is arranged on each side of the valve 1, which is used for connecting and sealing the valve 1. The male locator head 104 is a cone-end cylinder. The two male locator heads 104 of valve 1 are inserted into the two female locator holes 209 to accurately locate the position of valve 1, which is convenient for installation and clamping in subsequent processes. The cone end can be used for installation guidance to guide the male locator head 104 to insert into the corresponding female locator hole 209. The first torque tool female port 105 is matched with the standard torque tool wrench of the underwater robot. The standard torque tool wrench can be installed in the torque tool female port by the underwater robot. The underwater robot controls the standard torque tool wrench to rotate forward according to the set torque, and the valve 1 can be closed; the standard torque tool wrench rotates forward according to the set torque, and the valve 1 can be opened.

[0046] After the two locator male heads 104 of valve 1 are docked with the locator female holes 209, the valve 1 and the base 2 are docked and positioned. The standard torque tool wrench is installed at the second torque tool female port 208 by the underwater robot. The torque wrench rotates forward, and the valve tube 211 is brought together to the middle to clamp the valve 1, so as to achieve the installation and sealing of the pipeline valve 1. The torque wrench is reversed, and the valve tube 211 is opened to both sides, and the valve 1 is released, so as to achieve the disassembly of the pipeline valve 1.

[0047] The present invention also provides a deep-water replaceable valve 1 device and an operation method, the operation method including an installation method:

[0048] Step S1, rotating the second torque tool female port 208 to move the two valve connecting tubes 211 away from each other;

[0049] Step S2, inserting the locator male connector 104 into the locator male connector 104;

[0050] Step S3, rotating the second torque tool female port 208 to make the two connecting valve tubes 211 close to each other and respectively sealingly connected with corresponding interfaces on the second torque tool female port 208 to make the two connecting valve tubes 211 away from each other;

[0051] Step S4 , rotating the first torque tool female port 105 to open the valve 1 .

[0052] The working methods include disassembly methods;

[0053] Step S1.1, rotating the first torque tool female port 105 to close valve 1;

[0054] Step S2.1, rotating the second torque tool female port 208 to move the two connecting valve tubes 211 away from each other, and the two connecting valve tubes 211 are separated from the plug valve body 101;

[0055] Step S3.1, the male locator connector 104 is separated from the female locator connector.

[0056] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A deepwater replaceable valve device, characterized in that: The invention comprises a valve (1) and a machine base (2), wherein the valve (1) comprises a plug valve body (101) and a positioner male head (104), and the machine base (2) comprises a base (201), and a positioner female hole (209) is provided on the base (201), and the positioner female hole (209) and the positioner male head (104) are positioned and connected; The pipelines on both sides of the positioner mother hole (209) are dynamically and sealably connected to the valve connecting pipes (211), and the two valve connecting pipes (211) are both sealably connected to the corresponding interfaces on the plug valve body (101); The base (201) also includes a driving system, which drives the valve connecting pipes (211) on both sides of the positioner mother hole (209) to move closer to or farther away from each other.

2. The deepwater replaceable valve device according to claim 1, characterized in that: The drive system comprises a transmission shaft (207), a reducer (206), a slider (205), a slide rail (203) and a lead screw (204); the transmission shaft (207) is transmission-connected to the input end of the reducer (206); the output end of the reducer (206) is transmission-connected to the lead screw (204); two ends of the lead screw (204) respectively extend to two sides of a positioner female hole (209), and the threads at the two ends of the lead screw (204) have opposite rotation directions; The base (201) is provided with a slide rail (203), and the slider (205) is threadedly engaged with one at each end of the lead screw (204). Any slider (205) is slidably arranged in the slide rail (203), and any slider (205) is tightly connected to the valve tube (211) located on the same side of the positioner mother hole (209).

3. The deepwater replaceable valve device according to claim 2, characterized in that: The transmission shaft (207) is rotatably mounted on the base (201), and a second torque tool female port (208) is provided at one end of the rotating rod away from the reducer (206).

4. The deepwater replaceable valve device according to claim 2, characterized in that: The reducer (206) is located in the middle below the positioner female hole (209).

5. The deepwater replaceable valve device according to claim 2, characterized in that: A second sealing ring (210) is provided between the valve connecting pipe (211) and the fixed pipeline.

6. The deepwater replaceable valve device according to claim 1, characterized in that: A first sealing ring (103) is provided at any interface of the plug valve body (101), and the first sealing ring (103) seals and connects the interface of the plug valve body (101) with the valve connecting pipe (211).

7. The deepwater replaceable valve device according to claim 1, characterized in that: The gate valve body (101) is provided with a carrying handle (102), the positioner male head (104) is arranged at the bottom of the gate valve body (101), and the carrying handle (102) is arranged at the upper part of the gate valve body (101).

8. The deepwater replaceable valve device according to claim 1, characterized in that: A first torque tool female port (105) is provided on the side of the gate valve body (101), and the first torque tool female port (105) is rotated to open or close the valve (1).

9. A method for operating a deepwater replaceable valve device, characterized in that: Using the deepwater replaceable valve device according to any one of claims 1 to 8, the operation method includes an installation method: Step S1, rotating the second torque tool female port (208) to move the two valve connecting pipes (211) away from each other; Step S2, inserting the locator male connector (104) into the locator male connector (104); Step S3, rotating the second torque tool female port (208) so that the two connecting valve tubes (211) are close to each other and are respectively sealed and connected with corresponding interfaces on the rotating second torque tool female port (208) so that the two connecting valve tubes (211) are away from each other; Step S4, rotating the first torque tool female port (105) to open the valve (1).

10. The deepwater replaceable valve device according to claim 9, characterized in that: The working methods include disassembly methods; Step S1.1, rotating the first torque tool female port (105) to close the valve (1); Step S2.1, rotating the female port (208) of the second torque tool to move the two connecting valve tubes (211) away from each other, and the two connecting valve tubes (211) are separated from the plug-in valve body (101); Step S3.1, the male locator connector (104) is separated from the female locator connector.

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