Deepwater gate valve for offshore oil and gas exploitation

Abstract

The utility model discloses a deepwater gate valve for offshore oil and gas exploitation, which relates to the technical field of deepwater gate valves and comprises a base, a valve body and a driving box, the driving box is fixedly mounted at the top end of the valve body, a cleaning component is mounted on the valve body and comprises a crown gear, and the crown gear is rotatably sleeved on the valve body. The upper surface of the crown gear is fixedly provided with a first scraping plate, the first scraping plate makes contact with the outer surface of the valve body, the valve body is rotationally sleeved with two symmetrically-distributed first gear rings, the first gear rings are meshed with the crown gear, one side of each first gear ring is fixedly provided with a second scraping plate, and the second scraping plates make contact with the outer surface of the valve body. The top end of the valve body is rotationally sleeved with a second gear ring, the top end of the first scraping plate is fixedly connected with the lower surface of the second gear ring, by arranging the cleaning assembly, impurities adhering to the surface of the valve body can be cleaned away through the cleaning assembly, the phenomenon that the impurities corrode the valve body can be effectively avoided, and then the service life of the gate valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of deepwater gate valves, in particular to a deepwater gate valve for marine oil and gas exploitation. Background Art

[0002] A gate valve generally includes a valve body, a gate plate, an inlet pipe and an outlet pipe. The valve body has a medium channel. The gate plate is movably arranged in the valve body to block or release the medium in the medium channel. The inlet pipe is connected to the medium channel and is used to connect to the water supply joint to connect the fluid. The outlet pipe is connected to the medium channel and is used to discharge the fluid. The deepwater gate valve in marine oil and gas exploitation is a key fluid control equipment. It is responsible for realizing the connection and disconnection of the fluid during the development of submarine oil and gas fields. This valve is usually installed at key nodes of submarine oil and gas pipelines, such as wellheads, branch points or terminal stations, to ensure the smooth transmission and safe management of oil and gas.

[0003] Since deepwater gate valves for offshore oil and gas exploitation are generally installed in the deep sea, some marine organisms and impurities will adhere to the surface of the valve body over time. However, some existing deepwater gate valves for offshore oil and gas exploitation do not have a structure for cleaning the surface of the valve body. If the impurities on the surface of the valve body are not cleaned off in time, the valve body is easily corroded by the marine organisms and impurities, resulting in a shortened service life of the gate valve. In view of the above problems, the inventor proposes a deepwater gate valve for offshore oil and gas exploitation to solve the above problems. Utility Model Content

[0004] In order to solve the problem that some existing deepwater gate valves for offshore oil and gas exploitation are not provided with a structure for cleaning the valve body surface; the utility model aims to provide a deepwater gate valve for offshore oil and gas exploitation.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a deepwater gate valve for marine oil and gas exploitation, comprising a base, a valve body, and a drive box, wherein the drive box is fixedly mounted on the top of the valve body, a cleaning assembly is mounted on the valve body, and the cleaning assembly comprises a crown gear, the crown gear is rotatably sleeved on the valve body, a first scraper is fixedly mounted on the upper surface of the crown gear, and the first scraper is in contact with the outer surface of the valve body, two first gear rings are rotatably sleeved on the valve body, and the first gear rings are meshed with the crown gear, a second scraper is fixedly mounted on one side of the two first gear rings, and the second scraper is in contact with the outer surface of the valve body, a second gear ring is rotatably sleeved on the top of the valve body, and the top of the first scraper is fixedly connected to the lower surface of the second gear ring.

[0006] Preferably, a gate plate is slidably installed in the valve body, a threaded rod is rotatably installed in the valve body, and the threaded rod is threadedly inserted in the gate plate, a drive assembly is installed in the drive box, the drive assembly includes a forward and reverse motor, and the output end of the forward and reverse motor is fixedly connected to the top of the threaded rod.

[0007] Preferably, a driving gear is rotatably mounted on the lower surface of the driving box, and the driving gear is meshed with the second gear ring, and synchronous wheels are fixedly mounted on the top ends of the driving gear and the threaded rod, and synchronous belts are sleeved on the two synchronous wheels.

[0008] Preferably, flanges are fixedly mounted at both ends of the valve body, and a plurality of mounting holes distributed in an annular pattern are provided on the two flanges. Four symmetrically distributed sliding rods are fixedly mounted on the upper surface of the base, and the sliding rods are inserted through both sides of the valve body.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, by setting a cleaning component, the impurities adhering to the surface of the valve body can be cleaned by the cleaning component, which can effectively prevent the impurities from corroding the valve body, thereby extending the service life of the gate valve;

[0011] 2. In the present invention, by providing a driving component, the driving component can be used to drive the gate valve to open and close, and at the same time drive the cleaning component to clean the surface of the valve body, thereby greatly improving the working efficiency of the gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0015] Figure 3 This is a schematic diagram of the internal structure of the valve body of the utility model.

[0016] In the figure: 1. base; 2. valve body; 21. flange; 3. drive box; 4. cleaning assembly; 41. first scraper; 42. second scraper; 43. crown gear; 44. first ring gear; 45. second ring gear; 5. slide rod; 6. drive assembly; 61. forward and reverse motor; 62. drive gear; 63. synchronous wheel; 64. synchronous belt; 7. threaded rod; 8. gate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example: Figure 1-3 As shown, the utility model provides a deepwater gate valve for offshore oil and gas exploitation, comprising a base 1, a valve body 2, and a drive box 3. The drive box 3 is fixedly mounted on the top of the valve body 2. A cleaning assembly 4 is mounted on the valve body 2. The cleaning assembly 4 comprises a crown gear 43. The crown gear 43 is rotatably sleeved on the valve body 2. A first scraper 41 is fixedly mounted on the upper surface of the crown gear 43, and the first scraper 41 contacts the outer surface of the valve body 2. Two first gear rings 44 symmetrically distributed are rotatably sleeved on the valve body 2, and the first gear rings 44 mesh with the crown gear 43. A second scraper 42 is fixedly installed on one side of the two first gear rings 44, and the second scraper 42 contacts the outer surface of the valve body 2, so that the first scraper 41 rotates along the outer ring of the valve body 2, and at the same time, the first scraper 41 drives the crown gear 43 to rotate, and the crown gear 43 drives the first gear ring 44 to rotate, and the first gear ring 44 drives the second scraper 42 to rotate along the outer ring of the valve body 2. The first scraper 41 and the second scraper 42 are used to clean up impurities adhering to the surface of the valve body 2, which can effectively prevent the impurities from corroding the valve body 2, thereby extending the service life of the gate valve.

[0019] A second gear ring 45 is rotatably sleeved on the top end of the valve body 2 , and a top end of the first scraper 41 is fixedly connected to a lower surface of the second gear ring 45 .

[0020] By adopting the above technical solution, the second gear ring 45 drives the first scraper 41 to rotate along the outer ring of the valve body 2 .

[0021] A gate plate 8 is slidably installed in the valve body 2 , a threaded rod 7 is rotatably installed in the valve body 2 , and the threaded rod 7 is threadedly inserted in the gate plate 8 .

[0022] By adopting the above technical solution, the threaded rod 7 drives the gate plate 8 to rise and fall in the valve body 2 to control the opening and closing of the valve body 2.

[0023] A driving assembly 6 is installed in the driving box 3 . The driving assembly 6 includes a forward and reverse motor 61 , and an output end of the forward and reverse motor 61 is fixedly connected to the top end of the threaded rod 7 .

[0024] By adopting the above technical solution, the forward and reverse motor 61 is used to drive the threaded rod 7 to rotate.

[0025] A driving gear 62 is rotatably mounted on the lower surface of the driving box 3 , and the driving gear 62 is meshed with the second gear ring 45 .

[0026] By adopting the above technical solution, the driving gear 62 drives the second gear ring 45 to rotate.

[0027] Synchronous wheels 63 are fixedly mounted on the top of the driving gear 62 and the threaded rod 7 , and a synchronous belt 64 is sleeved on the two synchronous wheels 63 .

[0028] By adopting the above technical solution, the forward and reverse motor 61 is used to drive the threaded rod 7 and the driving gear 62 to rotate synchronously through the synchronous wheel 63 and the synchronous belt 64.

[0029] Flanges 21 are fixedly mounted on both ends of the valve body 2 , and a plurality of mounting holes distributed in an annular manner are formed on the two flanges 21 .

[0030] By adopting the above technical solution, the gate valve is butt-mounted on the pipeline using the flange 21 .

[0031] Four symmetrically distributed sliding rods 5 are fixedly mounted on the upper surface of the base 1 , and the sliding rods 5 are inserted through both sides of the valve body 2 .

[0032] By adopting the above technical solution, the base 1 is first fixedly installed at a designated position, and then the valve body 2 is slidably raised and lowered along the slide rod 5 according to the height of the pipeline.

[0033] Working principle: When the utility model is in use, the base 1 is first fixed to the specified position, and then the valve body 2 is slid and raised and lowered along the slide rod 5 according to the height of the pipeline, and then the gate valve is docked and installed on the pipeline by using the flange 21, and the threaded rod 7 and the driving gear 62 are driven to rotate synchronously by the forward and reverse motor 61 through the synchronous wheel 63 and the synchronous belt 64, and the threaded rod 7 drives the gate plate 8 to rise and fall in the valve body 2 to control the opening and closing of the valve body 2, and at the same time, the driving gear 62 drives the second gear ring 45 to rotate, and the second gear ring 45 drives the first scraper 41 to rotate along the outer ring of the valve body 2, and at the same time, the first scraper 41 drives the crown gear 43 to rotate, and the crown gear 43 drives the first gear ring 44 to rotate, and the first gear ring 44 drives the second scraper 42 to rotate along the outer ring of the valve body 2, and the first scraper 41 and the second scraper 42 are used to clean up impurities adhering to the surface of the valve body 2, which can effectively prevent the impurities from corroding the valve body 2, thereby extending the service life of the gate valve.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A deepwater gate valve for offshore oil and gas exploitation, comprising a base (1), a valve body (2), and a drive box (3), characterized in that: The driving box (3) is fixedly mounted on the top of the valve body (2); a cleaning assembly (4) is mounted on the valve body (2); the cleaning assembly (4) comprises a crown gear (43); the crown gear (43) is rotatably mounted on the valve body (2); a first scraper (41) is fixedly mounted on the upper surface of the crown gear (43); the first scraper (41) contacts the outer surface of the valve body (2); two first gear rings (44) are rotatably mounted on the valve body (2); the first gear rings (44) are meshed with the crown gear (43); a second scraper (42) is fixedly mounted on one side of each of the two first gear rings (44); the second scraper (42) contacts the outer surface of the valve body (2).

2. A deepwater gate valve for offshore oil and gas production as claimed in claim 1, characterized in that: The top end of the valve body (2) is rotatably sleeved with a second gear ring (45), and the top end of the first scraper (41) is fixedly connected to the lower surface of the second gear ring (45).

3. A deepwater gate valve for offshore oil and gas production as claimed in claim 1, characterized in that: A gate plate (8) is slidably mounted in the valve body (2), a threaded rod (7) is rotatably mounted in the valve body (2), and the threaded rod (7) is threadedly inserted in the gate plate (8).

4. A deepwater gate valve for offshore oil and gas production as claimed in claim 1, characterized in that: A driving assembly (6) is installed in the driving box (3), and the driving assembly (6) comprises a forward and reverse motor (61), and the output end of the forward and reverse motor (61) is fixedly connected to the top end of the threaded rod (7).

5. A deepwater gate valve for offshore oil and gas production as claimed in claim 1, characterized in that: A driving gear (62) is rotatably mounted on the lower surface of the driving box (3), and the driving gear (62) is meshed with the second gear ring (45).

6. A deepwater gate valve for offshore oil and gas production as claimed in claim 5, characterized in that: The top ends of the driving gear (62) and the threaded rod (7) are both fixedly mounted with synchronous wheels (63), and synchronous belts (64) are sleeved on the two synchronous wheels (63).

7. A deepwater gate valve for offshore oil and gas production as claimed in claim 1, characterized in that: Flanges (21) are fixedly mounted on both ends of the valve body (2), and a plurality of mounting holes distributed in an annular manner are provided on the two flanges (21).

8. A deepwater gate valve for offshore oil and gas production as claimed in claim 1, characterized in that: Four symmetrically distributed sliding rods (5) are fixedly mounted on the upper surface of the base (1), and the sliding rods (5) are inserted through both sides of the valve body (2).

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